This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2016-247625, filed Dec. 21, 2016, the entire contents of which are incorporated herein by reference.
The present disclosure relates to a connector device.
Japanese Unexamined Patent Publication No. 2011-243332 discloses a connector device of board-to-board connection, in which circuit boards (for example, flexible printed circuits (FPC)) are connected. The connector device includes a plug connector mounted on a first circuit board, and a receptacle connector mounted on a second circuit board.
The plug connector includes: a first housing placed on the first circuit board; a plurality of first contacts (conductive terminals) arranged in a predetermined direction and attached to the first housing; and a first solder peg forming part of a sensing switch to sense establishment of fitting and attached to the first housing. The receptacle connector includes: a second housing placed on the second circuit board; a plurality of second contacts arranged in a predetermined direction and attached to the second housing; and a second solder peg forming part of the sensing switch and attached to the second housing.
When the plug connector is inserted into the receptacle connector, the first contacts contact the second contacts corresponding thereto at a predetermined pressure. In this manner, the first circuit board is electrically connected with the second circuit board. Thereafter, when the plug connector is further inserted into the receptacle connector, the first solder peg contacts the second solder peg. In this manner, the sensing switch forms a closed circuit, and establishment of fitting is sensed. Specifically, the height of the contact point between the first and the second contacts from the first circuit board after establishment of fitting is set higher than the height of the contact point between the first and the second solder pegs from the first circuit board. For this reason, in the connector device of Japanese Unexamined Patent Publication No. 2011-243332, the first and the second contacts contact earlier than contact between the first and the second pegs, in fitting. Accordingly, conduction between the first and the second contacts can be sensed, according to whether the sensing switch forms a closed circuit. However, the first and second solder pegs are required in Japanese Unexamined Patent Publication No. 2011-243332 to ensure that a closed circuit has been formed.
A connector device according to an aspect of the present disclosure includes: a first connector including a first insulating housing, a plurality of first conductive terminals attached to the first insulating housing, and at least one first regulating member attached to the first insulating housing; and a second connector including a second insulating housing, a plurality of second conductive terminals attached to the second insulating housing, and at least one second regulating member attached to the second insulating housing. The first insulating housing is provided with a fitting projecting portion standing straight from a bottom surface, and the second insulating housing is provided with a receiving recessed portion capable of receiving the fitting projecting portion. Each of the first and the second regulating members includes a projecting portion. In a fitted state in which the fitting projecting portion is received in the receiving recessed portion, the projecting portion of the first regulating member projects toward the second regulating member, and the projecting portion of the second regulating member projects toward the first regulating member. A first projecting portion of either one of the first and the second regulating members provides a second projecting portion of the other regulating member with a first elastic force acting in a first direction which urges the first and the second insulating housings to separate from each other, in a state before the first projecting portion moves across the second projecting portion of the other regulating member, and provides the second projecting portion with a second elastic force acting in a second direction which the first and the second insulating housings move toward each other, in a state after the first projecting portion moves across the second projecting portion of the other, to electrically connect the first conductive terminals with the second conductive terminals.
The detailed description given herein below and the accompanying drawings are given by way of illustration only.
Exemplary embodiments described below are provided as examples for explaining the present invention. At least one of the exemplary embodiments includes latch members that prevent connectors from contacting in a half-fitted state.
Overview
A connector device includes: a first connector including a first insulating housing, a plurality of first conductive terminals attached to the first insulating housing, and at least one first regulating member attached to the first insulating housing; and a second connector including a second insulating housing, a plurality of second conductive terminals attached to the second insulating housing, and at least one second regulating member attached to the second insulating housing. The first insulating housing is provided with a fitting projecting portion standing straight from a bottom surface, and the second insulating housing is provided with a receiving recessed portion capable of receiving the fitting projecting portion. Each of the first and the second regulating members includes a projecting portion. In a fitted state in which the fitting projecting portion is received in the receiving recessed portion, the projecting portion of the first regulating member projects toward the second regulating member, and the projecting portion of the second regulating member projects toward the first regulating member. A first projecting portion of either one of the first and the second regulating members may be configured to provide a second projecting portion of the other regulating member with a first elastic force acting in a first direction which urges the first and the second insulating housings to separate from each other, in a state before the projecting portion of the one moves across the projecting portion of the other. Additionally, the first projection portion may be configured to provide the second projecting portion with a second elastic force acting in a second direction which urges the first and the second insulating housings to move toward each other, in a state after the projecting portion of the one moves across the projecting portion of the other. The proximity and/or contact between the first and second insulating housings operates to electrically connect the first conductive terminals with the second conductive terminals.
The connector device may have a structure in which the first projecting portion provides the second projecting portion of the other regulating member with a first elastic force (repulsive force) acting in the first direction which urges the first and the second insulating housings to separate from each other, in the state before the first projecting portion moves across the second projecting portion. For this reason, until the first projecting portion moves across the second projecting portion, the first elastic force may act between the projecting portions of the first and the second regulating members to separate the first and the second insulating housings from each other and achieve a non-fitted state in which the first connector is not electrically connected to the second connector. On the other hand, the first projecting portion may be configured to provide the second projecting portion of the other regulating member with a second elastic force (pull-in force) acting in the second direction which urges the first and the second insulating housings to move toward each other, in the state after the projecting portion of the one moves across the projecting portion of the other. For this reason, after the first projecting portion moves across the second projecting portion, the second elastic force may act between the projecting portions of the first and the second regulating members, to bring the first and the second insulating housings close to each other, and achieve a fitted state in which electrical connection between the first connector and the second connector is established. The connectors may be forcibly set to either of the non-fitted state or the fitted state, with the first and the second elastic forces alternatively generated between the first and the second conductive terminals. This structure prevents a half-fitted state between the connectors. In this disclosure, the “half-fitted state” is defined as the state where the connectors are incompletely fitted, such as the state in which the plug connector is slanted or non-vertical with respect to the receptacle connector. The term fitted state may be understood to refer to a closed electrical connection. On the other hand, the term non-fitted state may be understood to refer to an open electrical connection. The term half-fitted state may indicate an indeterminate state in which the electrical connection may or may not be closed, or may unintentionally alternate between closed and open electrical states.
In the connector device according to another example, the projecting portions of the first and the second regulating members described in example 1 may each have a mountain-like shape that has a maximum amount of projection at a peak of the mountain-like shape, and has a decreasing amount of projection toward the first and second directions. This structure enables the first projecting portion to alternatively cause the first and the second elastic forces to act on the second projecting portion of the other regulating member, with a very simple shape.
The connector device according to yet another example may have a structure in which at least one of the first conductive terminals described with respect to example 1 includes a projecting portion projecting toward the corresponding second conductive terminal in a fitted state. At least one of the second conductive terminals may include a projecting portion that projects toward the corresponding first conductive terminal in the fitted state, wherein a third projecting portion of either one of the first and the second conductive terminals may be configured to provide a fourth projecting portion of the other conductive terminal with a third elastic force acting in a direction which urges the first and the second insulating housings to separate from each other, in a state before the third projecting portion moves across the fourth projecting portion of the other conductive terminal. Additionally, the third projecting portion may be configured to provide the fourth projecting portion with a fourth elastic force acting in a direction which urges the first and the second insulating housings to move toward each other, in a state after the third projecting portion moves across the fourth projecting portion. The third projecting portion may be configured to provide the fourth projecting portion of the other conductive terminal with a third elastic force (repulsive force) acting in a direction which urges the first and the second insulating housings to separate from each other, in a state before the third projecting portion moves across the fourth projecting portion. For this reason, until the third projecting portion moves across the fourth projecting portion, the third elastic force may act between the projecting portions of the first and the second conductive terminals to separate the first and the second insulating housings from each other and achieve a non-fitted state in which the first connector is not fitted with the second connector. On the other hand, the third projecting portion may be configured to provide the fourth projecting portion of the other conductive terminal with a fourth elastic force (pull-in force) acting in a direction which urges the first and the second insulating housings to move toward each other, after the third projecting portion moves across the fourth projecting portion. For this reason, after the third projecting portion moves across the fourth projecting portion, the fourth elastic force may act between the projecting portions of the first and the second conductive terminals, to bring the first and the second insulating housings close to each other, and achieve a fitted state in which an electrical connection between the first connector and the second connector is established. As described above, the connectors may be forcibly set to either of the non-fitted state or the fitted state, with the third and the fourth elastic forces generated between the first and the second regulating members. This structure prevents a half-fitted state between the connectors.
The connector device according to a further example may have a structure in which the fourth elastic force is smaller than the first elastic force described in example 3, in a state after the third projecting portion of either one of the first and the second conductive terminals moves across the fourth projecting portion of the other conductive terminal, and before the first projecting portion of either one of the first and the second regulating members moves across the second projecting portion of the other regulating member. In this case, the third projecting portion moves across the projecting portion of the other conductive terminal, before the first projecting portion moves across the second projecting portion of the other regulating member, and the fourth elastic force is generated between the projecting portions of the first and the second conductive terminals. However, the fourth elastic force is smaller than the first elastic force. For this reason, until the first projecting portion moves across the second projecting portion of the other regulating member, the first elastic force separates the first and the second insulating housings from each other, to achieve the non-fitted state in which the first connector is not fitted with the second connector. In other words, the fitted state is created for the first time, not only when the projecting portions of the first and the second conductive terminals are engaged but also when the projecting portions of the first and the second regulating members are engaged. As a result, the half-fitted state between the non-fitted state and the fitted state may be avoided.
An example connector device may have a structure in which the projecting portion of one or both of the first and the second conductive terminals described at example 3 or 4 has a mountain-like shape that has a maximum amount of projection at a peak of the mountain-like shape, and has a decreasing amount of projection toward the first and second directions. This structure enables the projecting portion of either one of the first and the second conductive terminals to cause the third and the fourth elastic forces to act on the projecting portion of the other conductive terminal, with a very simple shape.
A further example connector device may have a structure in which the first insulating housing described in one or more of examples 3 to 5 may include a first mounting surface turned down on a first circuit board, in a state where the first connector is mounted on the first circuit board, and a first opposed surface opposed to the first mounting surface and positioned on a distal end side of the fitting projecting portion standing straight from the bottom surface. The second insulating housing may include a second mounting surface turned down on a second circuit board, in a state where the second connector is mounted on the second circuit board, and a second opposed surface opposed to the second mounting surface and positioned on an opened side of the receiving recessed portion. Each of the projecting portions of the first and the second regulating members may have a mountain-like shape that decreases a projecting quantity as the projecting portion goes away from a peak thereof toward the first and second directions. Additionally, each of the projecting portions of the first and the second conductive terminals may have a mountain-like shape that has a maximum amount of projection at a peak of the mountain-like shape, and has a decreasing amount of projection toward the first and second directions. In a first positional relation (A), the peak of the projecting portion of the first conductive terminals may be positioned in the first opposed surface side beyond the peak of the projecting portion of the first regulating member in the first and second directions, and the peak of the projecting portion of the second regulating member may be positioned in the second opposed surface side beyond the peak of the projecting portion of the second conductive terminals in the first and second directions. In a second positional relation (B), the peak of the projecting portion of the first regulating member may be positioned in the first opposed surface side beyond the peak of the projecting portion of the first conductive terminals in the first and second directions, and the peak of the projecting portion of the second conductive terminals may be positioned in the second opposed surface side beyond the peak of the projecting portion of the second regulating member in the first and second directions. In this case, because the peaks of the projecting portions of the first and the second conductive terminals and the peaks of the projecting portions of the first and the second regulating members have the positional relation (A) or (B), the first to the fourth elastic forces are effectively generated.
Yet another example connector device may have a structure in which the first regulating member of example 6 includes an attached portion attached to the first circuit board, wherein the second regulating member includes an attached portion attached to the second circuit board. In this case, the regulating members may also have a function similar to the attached portions, namely to attach the respective connectors to the respective corresponding circuit boards. This simplified structure may use fewer members as compared to other examples, thereby reducing the cost.
A connector device according to a further example may have a structure in which the first and the second regulating members as described in one or more of the examples 1 to 7 may abut against each other, but in which the first and the second conductive terminals do not abut against each other, in a state in which the fitting projecting portion is not received in the receiving recessed portion and external force is not applied thereto. In this case, no electricity flows between the first and the second conductive terminals. This structure facilitates selection of the connector device in the non-fitted state by execution of a continuity test.
Another example connector device may have a structure in which the fitting projecting portion and the receiving recessed portion as described in any one of the examples 1 to 8 may include wall portions opposed to each other in the fitted state. The first regulating member and the first conductive terminals may be arranged in the wall portion of the receiving recessed portion, and the second regulating member and the second conductive terminals may be arranged in the wall portion of the fitting projecting portion. Additionally, the projecting portions of the first regulating member and the first conductive terminals may be configured to project outward from the wall portion of the fitting projecting portion in the fitted state, and the projecting portions of the second regulating member and the second conductive terminals may be configured to project inward from the wall portion of the receiving recessed portion in the fitted state. In this state, the first and second regulating members contact each other and the first and second conductive terminals contact each other, in a direction in which the wall portions of the fitting projecting portion and the receiving recessed portion are opposed. This structure reduces the space in which the first and second regulating members contact each other and the first and second conductive terminals contact each other, in the fitting direction of the connectors. This structure enables reduction in size of the connector device.
Yet another example connector device may have a structure similar to that described in any one of the examples 1 to 9, in which the first connector includes a pair of first regulating members, and in which the second connector includes a pair of second regulating members. Additionally, the first regulating members may be positioned to interpose the first conductive terminals therebetween in a direction in which the first conductive terminals are arranged, and the second regulating members may be positioned to interpose the second conductive terminals therebetween in a direction in which the second conductive terminals are arranged. In this case, the first regulating members positioned on both sides of the first conductive terminals are engaged with the second regulating members positioned on both sides of the second conductive terminals. This structure retains the fitted state of the first and the second connectors on both ends of the connector device. Accordingly, when the first and the second connectors are fitted with each other, the connectors remain securely engaged.
Outline of Connector Device
First, the following is an explanation of an outline of a connector device 1. As illustrated in
The receptacle connector 100 and the plug connector 200 are configured to be fittable with each other. The plug connector 200 is fitted with the receptacle connector 100, to electrically connect the circuit boards B1 and B2 each other. Specifically, the connector device 1 has a function of electrically and physically connecting the circuit boards B1 and B2. Printed boards (such as flexible printed boards) of various types may be used as the circuit boards B1 and B2.
Structure of Receptacle Connector
The following is an explanation of the receptacle connector 100, with reference to
The housing 110 is formed of an insulating material, such as resin. The housing 110 has a rectangular-parallelepiped shape extending in a predetermined direction. The housing 110 includes a mounting surface S1 (second mounting surface) and an opposed surface S2 (second opposed surface) (see
The housing 110 includes a bottom wall portion 111, sidewall portions 112 to 115, and a center wall portion 116. The bottom wall portion 111 has a plate-like member having a rectangular shape. The bottom surface of the bottom wall portion 111 forms the mounting surface S1.
Each of the sidewall portions 112 to 115 is provided on the bottom wall portion 111, in a state of standing straight from the bottom wall portion 111, or in a vertical orientation. The sidewall portions 112 and 113 (wall portions) are positioned on respective long sides of the bottom wall portion 111, and extend along the respective long sides. The sidewall portions 114 and 115 are positioned on respective short sides of the bottom wall portions 111, and extend along the respective short sides. For this reason, the sidewall portions 112 and 113 are opposed to each other, and the sidewall portions 114 and 115 are opposed to each other. In explanation of the receptacle connector 100, the direction in which the sidewall portions 112 and 113 are opposed is referred to as the “X direction”, and the direction in which the sidewall portions 114 and 115 are opposed is referred to as the “Y direction”.
The center wall portion 116 is provided on the bottom wall portion 111, in a state of standing straight from the bottom wall portion 111. The center wall portion 116 is positioned in a space surrounded by the sidewall portions 112 to 115, in a state of being spaced apart from the sidewall portions 112 to 115. The center wall portion 116 extends along the long sides of the bottom wall portion 111. For this reason, the center wall portion 116 is opposed to the sidewall portions 112 and 113. The receiving recessed portion V is formed within the space surrounded by the bottom wall portion 111, the sidewall portions 112 to 115, and the center wall portion 116. Accordingly, the receiving recessed portion V has a rectangular annular shape.
A plurality of conductive terminals 120 (e.g., 20 conductive terminals 120 in some example embodiments) are attached to the sidewall portion 112. The conductive terminals 120 are arranged in a line in the extending direction (Y direction) in the sidewall portion 112. In the same manner, a plurality of conductive terminals 120 (e.g., 20 conductive terminals 120) are attached to the sidewall portion 113. Because the conductive terminals 120 have the same structure, the following explanation illustrates the conductive terminals 120 in the sidewall portion 112, and explanation of the conductive terminals 120 in the sidewall portion 113 is omitted.
Each of the conductive terminals 120 is formed of a plate-like conductive material (such as a metal member). As illustrated in
The middle portion 122 extends upward from the vicinity of the mounting surface S1, in the Z direction along the sidewall portion 112. The middle portion 122 is a portion fixed by being press-fitted into a groove formed in the sidewall portion 112. The lower end portion of the middle portion 122 is integrally connected with an end portion of the proximal end portion 121 close to the sidewall portion 112.
The contact portion 123 is supported by the middle portion 122, in a cantilever manner. The contact portion 123 is positioned in the receiving recessed portion V. The contact portion 123 includes a projecting portion 123a, a curved portion 123b, and a projecting portion 123c.
The projecting portion 123a is integrally connected with the upper end portion of the middle portion 122. The projecting portion 123a has a mountain-like shape or convex, and projects in the X direction from the sidewall portion 112 side toward the sidewall portion 113 side (center wall portion 116 side). Specifically, the amount of projection of the projecting portion 123a towards the sidewall portion 113 decreases on either side of the peak P1. In other words, the amount of projection of the projecting portion 123a in the X direction decreases along the Z direction (vertical direction), with a maximum amount of projection occurring at the peak P1.
Specifically, the upper portion of the projecting portion 123a located between the peak P1 and the middle portion 122 is inclined to be close to the sidewall portion 112 as the projecting portion 123a extends upward (toward the opposed surface S2), as viewed from the peak P1. By contrast, the lower portion of the projecting portion 123a located between the peak P1 and the curved portion 123b is inclined to be close to the sidewall portion 112 as it extends downward (toward the mounting surface S1), as viewed from the peak P1. An initial range of contact X1 comprising one or more initial points of contact between opposing projecting portions is located on a first, upper side of the peak P1. When fitting the first connector to the second connector, a first projecting portion associated with peak P1 is configured to provide a second projecting portion associated with peak P3 with a first elastic force acting in a first direction associated with disengaging the first and second insulating housings from each other. The first elastic force results from contact between the first projecting portion and the second projecting portion along the initial range of contact X1. Additionally, a subsequent range of contact X2 comprising one or more subsequent points of contact between opposing projecting portions is located on a second, lower side of the peak P1. The first projecting portion associated with peak P1 is configured to provide the second projecting portion with a second elastic force acting in a second direction associated with engaging the first and second insulating housings to each other. The second elastic force results from contact between the first projecting portion and the second projecting portion along the subsequent range of contact X2. Although the elastic forces provided by the projecting portion is described with reference to
The curved portion 123b has a substantially U shape that extends downward from the vicinity of the opposed surface S2 and is bent upward in the vicinity of the mounting surface S1. The projecting portion 123c has a mountain-like shape in the same manner as the projecting portion 123a, and projects from the sidewall portion 113 toward the sidewall portion 112.
As illustrated in
The regulating member 130 is formed of a plate-like conductive material (for example, a metal member). As illustrated in
The middle portion 132 is located between the proximal end portions 131 in the X direction. An upper end portion of the middle portion 132 is integrally connected with upper end portions of the proximal end portions 131. The middle portion 132 extends in a vertical direction (Z direction) along the sidewall portion 114.
The contact portion 133 is supported by the middle portion 132, in a cantilever manner. Part of the contact portion 133 is positioned in the receiving recessed portion V. The contact portion 133 includes a curved portion 133a and a projecting portion 133b. The curved portion 133a has a substantially U shape that extends downward from the vicinity of the opposed surface S2 and is bent upward in the vicinity of the mounting surface S1. One end portion (lower end portion) of the curved portion 133a is integrally connected with the lower end portion of the middle portion 132. The curved portion 133a extends along the Z direction (vertical direction). The upper end portion of the curved portion 133a is opposed to the center wall portion 116.
The projecting portion 133b has a mountain-like shape, and projects from the sidewall portion 114 side toward the sidewall portion 115 side (center wall portion 116 side) in a similar manner as described above with respect to projecting portion 123a. Specifically, amount of projection of the projecting portion 133b decreases on either side of the peak P2. In other words, the amount of projection of the projecting portion 133b in the Y direction decreases along the Z direction (vertical direction), with a maximum amount of projection occurring at the peak P2.
Specifically, the lower portion (the portion between the peak P2 and the curved portion 133a) of the projecting portion 133b located below the peak P2 is inclined to be close to the sidewall portion 114 as it extends downward (toward the mounting surface S1), as viewed from the peak P2. By contrast, the upper portion of the projecting portion 133b (opposed surface S2 side) located above the peak P2 is inclined to be close to the sidewall portion 114 as it extends upward (toward the opposed surface S2), as viewed from the peak P2.
As illustrated in
d1: the height in the Z direction from the surface of the circuit board B1 to the peak P1 of the projecting portion 123a of the conductive terminal 120; and
d2: the height in the Z direction from the surface of the circuit board B1 to the peak P2 of the projecting portion 133b of the regulating portion 130.
Specifically, the peak P2 is positioned higher (on the opposed surface S2 side) than the peak P1.
Structure of Plug Connector
The following is explanation of the plug connector 200, with reference to
The housing 210 is formed of an insulating material such as resin. The housing 210 has a rectangular-parallelepiped shape extending in a predetermined direction. As shown in
The housing 210 includes a bottom wall portion 211, and sidewall portions 212 to 215. The bottom wall portion 211 has a plate-like member having a rectangular shape. The bottom surface of the bottom wall portion 211 forms the mounting surface S3.
Each of the sidewall portions 212 to 215 is provided on the bottom wall portion 211, in a state of standing straight from the bottom wall portion 211. The sidewall portions 212 to 215 are received in the receiving recessed portion V of the receptacle connector 100, when the plug connector 200 is fitted with the receptacle connector 100. For this reason, the sidewall portions 212 to 215 form the fitting projecting portion W, as a whole.
The sidewall portions 212 and 213 (wall portions) are positioned on respective long sides of the bottom wall portion 211, and extend along the respective long sides. The sidewall portions 214 and 215 are positioned on respective short sides of the bottom wall portions 211, and extend along the respective short sides. For this reason, the sidewall portions 212 and 213 are opposed to each other, and the sidewall portions 214 and 215 are opposed to each other. Accordingly, the fitting projecting portion W has a rectangular tube shape. The center wall portion 116 of the receptacle connector 100 is received in the internal space of the fitting projecting portion W having a rectangular tube shape, when the plug connector 200 is fitted with the receptacle connector 100. In explanation of the plug connector 200, the direction in which the sidewall portions 212 and 213 are opposed is referred to as the “X direction”, and the direction in which the sidewall portions 214 and 215 are opposed is referred to as the “Y direction”.
A plurality of conductive terminals 220 (e.g., 20 conductive terminals 220) are attached to the sidewall portion 212. The conductive terminals 220 are arranged in a line in the extending direction (Y direction) in the sidewall portion 212. In the same manner, a plurality of conductive terminals 220 (e.g., 20 conductive terminals 220) are attached to the sidewall portion 213. Because the conductive terminals 220 have the same structure, the following explanation illustrates the conductive terminals 220 in the sidewall portion 212, and explanation of the conductive terminals 220 in the sidewall portion 213 is omitted.
Each of the conductive terminals 220 is formed of a plate-like conductive material (such as a metal member). As illustrated in
The contact portion 222 extends in the Z direction along the external surface of the sidewall portion 212. The contact portion 222 includes a flat portion 222a, and a projecting portion 222b. The flat portion 222a has a straight-line shape. The lower end portion of the flat portion 222a is integrally connected with an end portion of the proximal end portion 221 close to the sidewall portion 212.
The projecting portion 222b is integrally connected with the upper end portion of the flat portion 222a. The projecting portion 222b has a mountain-like shape, and projects outward in the X direction from the sidewall portion 212. Specifically, the amount of projection of the projecting portion 222b decreases on either side of the peak P3. In other words, the amount of projection of the projecting portion 222b in the X direction decreases along the Z direction (vertical direction), with a maximum amount of projection occurring at the peak P3.
Specifically, the lower portion (the portion between the peak P3 and the flat portion 222a) of the projecting portion 222b located below the peak P3 is inclined to be close to the sidewall portion 212 as it extends downward (toward the mounting surface S3), as viewed from the peak P3. By contrast, the upper portion (the portion on the opposed surface S4 side beyond the peak P3) of the projecting portion 222b located above the peak P3 is inclined to be close to the sidewall portion 212 as it extends upward (toward the opposed surface S4), as viewed from the peak P3.
The fixed portion 223 extends in the Z direction along the internal wall surface of the sidewall portion 212. The upper end portion of the fixed portion 223 is integrally connected with the upper end portion of the projecting portion 222b, and has a substantially U shape that extends upward from the vicinity of the mounted surface S3 and is bent downward in the vicinity of the opposed surface S4. The lower end portion of the fixed portion 223 is fixed in the sidewall portion 212.
As illustrated in
The regulating member 230 is formed of a plate-like conductive material (such as a metal material). As illustrated in
The contact portion 232 extends in the Z direction along the external surface of the sidewall portion 214. The contact portion 232 includes a flat portion 232a and a projecting portion 232b. The flat portion 232a has a straight-line shape. The lower end portion of the flat portion 232a is integrally connected with a side edge of the proximal end portion 231 close to the sidewall portion 214.
The projecting portion 232b is integrally connected with the upper end portion of the flat portion 232a. The projecting portion 232b has a mountain-like shape, and projects outward in the Y direction from the sidewall portion 214. Specifically, the amount of projection the projecting portion 232b decreases on either side of the peak P4. In other words, the amount of projection of the projecting portion 232b in the Y direction decreases along the Z direction (vertical direction), with a maximum amount of projection occurring at the peak P4.
Specifically, the lower portion (the portion between the peak P4 and the flat portion 232a) of the projecting portion 232b located below the peak P4 is inclined to be close to the sidewall portion 214 as it extends downward (toward the mounting surface S3), as viewed from the peak P4. By contrast, the upper portion of the projecting portion 232b located above the peak P4 is inclined to be close to the sidewall portion 214 as it extends upward (toward the opposed surface S4), as viewed from the peak P4.
The fixed portion 233 has an L shape. One end portion of the fixed portion 233 is integrally connected with the upper end portion of the projecting portion 232b. The other end portion of the fixed portion 233 is fixed in the sidewall portion 214.
As illustrated in
d3: the height in the Z direction from the surface of the circuit board B2 to the peak P3 of the projecting portion 222b of the conductive terminal 220; and
d4: the height in the Z direction from the surface of the circuit board B2 to the peak P4 of the projecting portion 232b of the regulating portion 230.
Specifically, the peak P3 is positioned higher (on the opposed surface S4 side) than the peak P4.
Details of Connector Device
The following is more detailed explanation of the structure of the connector device 1 formed by fitting the receptacle connector 100 with the plug connector 200, with reference to
In the state (fitted state) in which the receptacle connector 100 is fitted with the plug connector 200, the fitting projecting portion W of the housing 210 is received in the receiving recessed portion V of the housing 110. Specifically, the sidewall portion 212 is positioned between the sidewall portion 112 and the center wall portion 116. The sidewall portion 213 is positioned between the sidewall portion 113 and the center wall portion 116. The sidewall portion 214 is positioned between the sidewall portion 114 and the center wall portion 116. The sidewall portion 215 is positioned between the sidewall portion 115 and the center wall portion 116.
In the fitted state, as illustrated in
In the fitted state, as illustrated in
As illustrated in
As illustrated in
Method for Assembling Connector Device
The following is an explanation of a method for assembling (producing) the connector device 1, with reference to
The process of fitting the conductive terminals 120 in the sidewall portion 112 with the conductive terminals 220 in the sidewall portion 212 is similar to the process of fitting the conductive terminals 120 in the sidewall portion 113 with the conductive terminals 220 in the sidewall portion 213. For this reason, the following explanation illustrates the former, and explanation of the latter is omitted. In addition, the process of fitting the regulating member 130 in the sidewall portion 114 with the regulating member 230 in the sidewall portion 214 is similar to the process of fitting the regulating member 130 in the sidewall portion 115 with the regulating member 230 in the sidewall portion 215. For this reason, the following explanation illustrates the former, and explanation of the latter is omitted.
(1) Placed State
First, as illustrated in
In the placed state, as illustrated in
By contrast, in the placed state, as illustrated in
(2) First Pressed State
Thereafter, as illustrated in
By contrast, in the first pressed state, as illustrated in
(3) Second Pressed State
Thereafter, as illustrated in
By contrast, in the second pressed state, as illustrated in
(4) Third Pressed State
Thereafter, as illustrated in
By contrast, in the third pressed state, as illustrated in
When the plug connector 200 is pulled into the receptacle connector 100, as illustrated in
Function
There are cases where the sensing switch becomes a closed circuit state, even in the half-fitted state. In this case, although the connector device passes in the conduction test and circulates through the market, the plug connector may be disengaged from the receptacle connector due to vibration or shock from the outside, when the connector device is in the half-fitted state.
However, in some examples, in the state (placed state; first and second pressed states) before the peak P4 of the projecting portion 232b of the regulating member 230 moves across the peak P2 of the projecting portion 133b of the regulating member 130, the projecting portion 133b provides the projecting portion 232b with the elastic forces Arc0 to Arc2 (repulsive force) acting in the direction in which the housings 110 and 210 separate from each other, as illustrated in
In the state (first pressed state) before the peak P3 of the projecting portion 222b of the conductive terminal 220 moves across the peak P1 of the projecting portion 123a of the conductive terminal 120, the projecting portion 123a provides the projecting portion 222b with the elastic force Art1 (repulsive force) acting in the direction in which the housings 110 and 210 separate from each other. For this reason, until the peak P3 of the projecting portion 222b moves across the peak P1 of the projecting portion 123a, the elastic force Art1 acts between the projecting portions 123a and 222b to separate the housings 110 and 210 from each other and achieve a non-fitted state in which the receptacle connector 100 is not fitted with the plug connector 200. By contrast, in some examples, in the state after the peak P3 of the projecting portion 222b moves across the peak P1 of the projecting portion 123a, the projecting portion 123a provides the projecting portion 222b with elastic forces Art3 and Art4 (pull-in force) acting in a direction in which the housings 110 and 210 move toward each other. For this reason, after the peak P3 of the projecting portion 222b moves across the peak P1 of the projecting portion 123a, the elastic forces Art3 and Art4 act between the projecting portions 123a and 222b, to bring the housings 110 and 210 close to each other and achieve a fitted state in which an electrical connection between the conductive terminals 120 and 220 is established. As described above, with the elastic forces generated between the conductive terminals 120 and 220, the connectors 100 and 200 are forcibly set to either of the non-fitted state or the fitted state. This structure further securely prevents a half-fitted state between the connectors 100 and 200.
As illustrated in
Each of the projecting portions 123a, 133b, 222b, and 232b has a mountain-like shape that has a decreasing amount of projection on either side of the peak in the vertical direction. This structure enables the elastic force to act on the corresponding projecting portion, with a very simple shape.
In the present embodiment, as illustrated in
In the present embodiment, the regulating member 130 includes the proximal end portion 131, and the regulating member 230 includes the proximal end portion 231. For this reason, the regulating members 130 and 230 also have a function similar to the attached portion, namely to attach the respective connectors 100 and 200 to the respective corresponding circuit boards B1 and B2. This structure may use fewer members as compared to other examples, thereby reducing the cost.
As illustrated in
As illustrated in
In the receptacle connector 100, a pair of regulating members 130 are positioned to interpose the conductive terminals 120 therebetween. In the plug connector 200, a pair of regulating members 230 are positioned to interpose the conductive terminals 220 therebetween. For this reason, engaging the regulating members 130 and 230 to each other retains the fitted state of the connectors 100 and 200 on both ends of the connector device 1. Accordingly, when the connectors 100 and 200 are fitted with each other, the connectors 100 and 200 remain securely engaged.
Example embodiments have been explained above in detail, but various modifications may be made to the embodiment described above.
(1) For example, a receptacle connector 100A illustrated in
The sidewall portions 114 and 115 are provided with no slits, and provided with no regulating members 130. Although not illustrated, no regulating members 230 are attached to the sidewall portions 214 or 215 of the plug connector 200 corresponding to the receptacle connector 100A. In the receptacle connector 100A, 18 conductive terminals 120 are attached to each of the sidewall portions 112 and 113.
A pair of regulating members 140 are positioned to interpose the conductive terminals 120 therebetween in the sidewall portion 112. Each of the regulating members 140 is formed of a plate-like conductive material (such as a metal member). In the same manner as the conductive terminals 120, each of the regulating members 140 includes a proximal end portion 141 (attached portion), a middle portion 142, and a contact portion 143, as illustrated in
The following is an explanation of a process of fitting the receptacle connector 100A with the plug connector 200, with reference to
In the placed state, as illustrated in
Thereafter, as illustrated in
Thereafter, as illustrated in
Thereafter, as illustrated in
When the plug connector 200 is pulled into the receptacle connector 100A, as illustrated in
(2) As illustrated in
d1a: the height in the Z direction from the surface of the circuit board B1 to the peak P1a of the projecting portion 123a of the conductive terminal 120A;
d1b: the height in the Z direction from the surface of the circuit board B1 to the peak P1b of the projecting portion 123a of the conductive terminal 120B; and
d1c: the height in the Z direction from the surface of the circuit board B1 to the peak P1c of the projecting portion 123a of the conductive terminal 120C.
Specifically, the peak P1a is positioned lower (mounting surface S1 side) than the peak P1b. The peak P1b is positioned lower (mounting surface S1 side) than the peak P1c.
In this case, in the process of fitting the connectors 100B and 200, first, the projecting portions 123a of the conductive terminals 120C are engaged with the projecting portions 222b of the conductive terminals 220, thereafter the projecting portions 123a of the conductive terminals 120B are engaged with the projecting portions 222b of the conductive terminals 220, and lastly the projecting portions 123a of the conductive terminals 120A are engaged with the projecting portions 222b of the conductive terminals 220. For this reason, in the process of fitting the connectors 100B and 200, elastic force Ar3 (pull-in force) acts in a phased manner between the projecting portions 123a and 222b. This structure facilitates fitting of the connectors 100B and 200, without application of large external force.
The peaks P1 of part of the conductive terminals 120 may successively be located closer to the upper side (opposed surface S2 side) in the arrangement direction. The same is applicable to the conductive terminals 220 included in the plug connector 200.
(3) As illustrated in
(4) The shapes of the housings 110 and 210 are not always limited to the rectangular-parallelepiped shapes, but may be other shapes (such as a cube shape, a prism shape, and a cylinder shape).
(5) At least one of the projecting portions 123a and 222b may be elastically deformed. In the same manner, at least one of the projecting portions 133b and 232b may be elastically deformed.
(6) The projecting portions 123a, 133b, 222b, and 232b may not have a mountain-like shape. For example, it suffices that the projecting portion 123a provided in the sidewall portion 112 projects from the sidewall portion 112 toward the sidewall portion 113 or the center wall portion 116 (corresponding conductive terminal 220). Specifically, it suffices that the upper portion (portion between the peak P1 and the middle portion 122) of the projecting portion 123a located above the peak P1 is inclined to approach the sidewall portion 112 as it extends upward (toward the opposed surface S2), as viewed from the peak P1. By contrast, the lower portion (portion between the peak P1 and the curved portion 123b) of the projecting portion 123a located below the peak P1 is not always inclined to approach the sidewall portion 112 as it extends downward (toward the mounted surface S1), as viewed from the peak P1. The same is applicable to the other projecting portions 133b, 222b, and 232b.
(7) In the placed state, the conductive terminals 120 and 220 may contact each other.
(8) The regulating members 130 are not always positioned to interpose the conductive terminals 120 therebetween. Specifically, the regulating members 130 may be located in predetermined positions with respect to the conductive terminals 120. The same is applicable to the regulating members 230.
(9) The receptacle connector 100 may include at least one regulating member 130, and the plug connector 200 may include at least one regulating member 230.
(10) The conductive terminals 120 and 220 may not include projecting portions 123a and 222b, respectively, and the connectors 100 and 200 may be fitted with each other by the projecting portions 133b and 232b of the regulating members 130 and 230.
(11) The regulating members 130 may not function as attached portions, and the receptacle connector 100 may be attached to the circuit board B1 with another member. The same is also applicable to the regulating members 230.
(12) Because it suffices that an elastic force acts between the regulating members 130 and 230, the regulating members 130 and 230 may be formed of a material other than metal. Specifically, the regulating members 130 and 230 may be resin members or the like. The regulating members 130 and 230 may be formed of the same material as that of the housings 110 and 210, and may be integrated with the housings 110 and 210, respectively.
The devices and methods described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the devices and methods described herein may be made in arrangement and detail. The accompanying claims and their equivalents are intended to cover such forms or modification as would fall within the scope and spirit of the subject matter claimed herein.
Number | Date | Country | Kind |
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2016-247625 | Dec 2016 | JP | national |
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