The present invention relates to a connecting structure for connecting a plurality of connectors, and to a connector connected to another connector by means of said connecting structure.
A large number of signal cables are wired into various types of moving bodies including motor vehicles. Connecting structures for mating the signal cables and a circuit board in order to connect the signal cables and the circuit board are known in the art. JP 2015-93650 A describes a connecting structure for a connector which is used in a vehicle.
A connector used in a moving, body needs to be very reliable. In a conventional connecting structure, however, a male-side connector and a female-side connector are simply mated, so if the two connectors are not properly mated at the time of production or a connector housing is damaged, a problem arises in that there is a risk of the connectors detaching due to rocking that accompanies movement of the moving body. There is also a risk of the same problem arising in connectors used in devices other than moving bodies if the connectors are not properly mated during production.
The present invention has therefore been devised in light of the above matters, and the aim thereof lies in readily maintaining a state in which a plurality of connectors are securely mated.
A connecting structure according to a first ode of the present invention is a structure for connecting a first connector having a first connection terminal, and a second connector having a second connection terminal able to mate with the first connection terminal. The first connector comprises a first housing provided around the first connection terminal and having at least one opening, and the second connector comprises: a second housing which is provided around the second connection terminal and has an engaging portion which engages with the opening formed in the first housing in a state in which the first connection terminal and the second connection terminal are mated and said second housing is mated with the first housing, and a locking member which is able to move in a longitudinal direction of the connecting structure and prevents displacement of the engaging portion in a direction of disengagement from the opening in a state in which said locking member is pushed in up to a predetermined position on the first connector side.
The locking member may be able to move up to the predetermined position on the first connector side a state in which the first connection terminal and the second connection terminal are mated, and may not move up to the predetermined position in a state in which the first connection terminal and the second connection terminal are not mated.
The engaging portion may deform to a state in which it is disengageable from the opening as a result of an external force being applied in a state in which the locking member is not pushed in to the first connector side, and the engaging portion may not deform to a state in which it is disengageable from the opening when an external force is applied in a state in which the locking member is pushed in to the first connector side.
The second housing may further comprise an engagement release portion for applying stress to the engaging portion in such a way that the engaging portion deforms to a state in which it is disengageable from the opening as a result of the external force being applied.
When the external force is applied to the engagement release portion in a state in which the locking member is not pushed in to the first connector side, the engagement release portion may deform in such a way as to apply the stress required in order for the engaging portion to deform to a state in which it is disengageable from the opening, and when the external force is applied to the engagement release portion in a state in which the locking member is pushed in to the first connector side, the engagement release portion may deform in such a way as to apply a smaller stress than the stress required in order for the engaging portion to deform to a state in which it is disengageable from the opening.
The locking member may comprise a deformation-preventing portion which does not come into contact with the engagement release portion in a state in which the locking member is not pushed in to the first connector side, and which prevents deformation of the engagement release portion in a state in which the locking member is pushed in to the first connector side.
The engaging portion may comprise: a recess into which a tip end of the locking member is inserted in a state in which the locking member is pushed in to the first connector side, and a protrusion engaging with the opening, and the amount of displacement of the protrusion in a direction of disengagement from the opening in a state in which the locking member is inserted in the recess may be smaller than the amount of displacement of the protrusion in the direction of disengagement from the opening in a state in which the locking member is not inserted in the recess.
A connector according to a second mode of the present invention comprises: a second connection terminal able to mate with a first connection terminal of another connector, a second housing which is provided around the second connection terminal and has an engaging portion engages with an opening formed in a housing of the other connector in a state in which the first connection terminal and the second connection terminal are mated and said second housing is mated with the housing of the other connector, and a locking member which is able to move to the other connector side and prevents displacement of the engaging portion in a direction of disengagement from the opening in a state in which said locking member is pushed in up to a predetermined position on the other connector side.
The present invention demonstrates an advantage in that it is possible to readily maintain a state in which a plurality of connectors are securely mated.
The first connector 1 is a high-speed data (HSD or Fakra) connector having a male terminal, for example, and the second connector 2 is an HSD or Fakra connector having a female terminal, for example, HSD or Fakra connectors are vehicle-mounted connectors for high-speed data communication.
The first connector 1 comprises: a first connection terminal 10, a first housing 11, an opening 12, and a cable connection 13. The first connection terminal 10 is a male terminal connected to a female terminal (referred to below as a second connection terminal 20) of the second connector 2, for example. The first connection terminal 10 comprises a plurality of (four in
The first housing 11 is a resin member provided around the first connection terminal 10. As shown in
Furthermore, an opening 112 is formed in the first housing 11 between the opening lilt, and the opening 111R, and at least one opening 12 is formed above the opening 112. The opening 12 is a region in which an engaging portion 22 of the second connector 2 to be described later is inserted. The opening 12 is formed on an outer peripheral surface of a cylindrical region of the first housing 11 which comes into contact with at least part of the second connector 2. In the example shown in
The cable connection 13 comprises an opening enabling a cable to be inserted into the first connector 1, and a connector for connecting the cable.
The second connector 2 comprises: a second connection terminal 20, a second housing 21, an engaging portion 22, an engagement release portion 23, a locking member 24, and a cable connection 25. The second connection terminal 20 is a female terminal connected to a male terminal (first connection terminal 10) of the first connector 1, for example. The second connection terminal 20 comprises a plurality of (four in
The second housing 21 is a resin member provided around the second connection terminal 20. The engaging portion 22 and the engagement release portion 23 are provided on the second housing 21, for example. The engaging portion 22 and the engagement release portion 23 may be integrally molded with the second housing 21 or they may be molded separately to the second housing 21 and then fixed to the second housing 21.
The engaging portion 22 is a part which engages with the opening 12 formed in the first housing 11 in a state in which the first connection terminal 10 and the second connection terminal 20 are mated and said second housing 21 is mated with the first housing 11. The engaging portion 22 is fixed to an area close to an end portion of the second housing 21 on the side which mates with the first connector 1. The engaging portion 22 is a long part which is fixed to an outer peripheral surface of a cylindrical region of the second housing 21 surrounding the second connection terminal 20, and extends away from the end portion of the second housing 21. The engaging portion 22 is formed to a thickness such as to bend in a vertical direction and deforms as a result of an external force being applied thereto so as to assume a state in which it engages with the opening 12 after insertion into the opening 12 and to assume a state enabling engagements with the opening 12 to be released.
As shown in
The recess 222 is a part into which a tip end of the locking member 24 is inserted in a state in which the locking member 24 is pushed in to the first connector 1 side. The recess 222 is formed on the opposite side of the engaging portion 22 to the side on which the protrusion 221 is formed. The recess 222 is a space between a long resin member on which the protrusion 221 is formed and the outer peripheral surface of the cylindrical region of the second housing 21 surrounding the second connection terminal 20, for example. The recess 222 may be formed by the resin member on which the protrusion 221 is formed.
The portion 223 to be depressed is a plate-shaped part to which a downward external force is applied from the engagement release portion 23 when a user pushes the engaging release portion 23 downwards, and extends to the rear of the step D. The portion 223 to be depressed may be wider than the protrusion 221 and the protrusion 221 may be formed on the portion 223 to be depressed. A downward stress is applied to the portion 223 to be depressed as a result of the engagement release portion 23 being pushed downwards, so that the long resin member including the protrusion 221 flexes and the protrusion 221 moves downwards. In this state, a user applies a force in a direction to withdraw the second connector 2 from the first connector 1, whereby mating of the first connector 1 and the second connector 2 is released.
As shown in
The engagement release portion 23 is a part to which an external force is applied by a user whereby stress is applied to the engaging portion 22 in such a way that the engaging portion 22 deforms to a state in which it is disengageable from the opening, for example. As shown in
The locking member 24 is able to move in the longitudinal direction of the connecting structure S and prevents displacement of the engaging portion 22 in a direction of disengagement from the opening in a state in which said locking member 24 is pushed in to the first connector 1 side. The locking member 24 comprises: the rod-shaped member 241, a protrusion 242, a tip end portion 243, a withdrawal-preventing portion 244, a deformation-preventing portion 245, an operating portion 246, a first positioning portion 247, and a second positioning portion 248.
The rod-shaped portion 241 is a long part extending in the front-rear direction, and the protrusion 242 and the tip end portion 243 are formed close to a tip end of the rod-shaped portion 241. As the locking member 24 is pushed in towards the first connector 1, the rod-shaped portion 241 bends downwards as a result of the protrusion 242 progressing forwards along the oblique surface of the engaging portion 22 on the opposite side to the protrusion 221.
As shown in
That is to say, the locking member 24 is able to move up to a predetermined position on the side of the first connector 1 in a state in which the first connection terminal 10 and the second connection terminal 20 are mated, and does not move up to the predetermined position in a state in which the first connection terminal 10 and the second connection terminal 20 are not mated. By virtue of the second connector 2 having such a configuration, a user is able to ascertain that the first connector 1 and the second connector 2 are not mated, because of the fact that the locking member 24 cannot be moved forwards. It is therefore possible to prevent shipping of the product in a state in which the first connector 1 and the second connector 2 are not mated.
The tip end portion 243 comes into contact with is surface of the long resin member, on which the protrusion 221 is formed, on the opposite side of the engaging portion 22, in a state in which the first connector 1 and the second connector 2 are not mated and the locking member 24 is not pushed in towards the first connector 1. As the second connector 2 moves to the side of the first connector 1, the protrusion 221 moves downwards and the tip end portion 243 also moves downwards as a result.
A withdrawal-preventing portion 244R and a withdrawal-preventing portion 244L are steps for preventing withdrawal of the locking member 24 from the second housing 21. The withdrawal-preventing portion 244R and the withdrawal-preventing portion 244L run into protrusions (not depicted) formed on the second housing 21 so that the locking member 24 is unlikely to be withdrawn to the rear.
The deformation-preventing portion 245 is a rib extending in a vertical direction which does not come into contact with the engagement release portion 23 in a state in which the locking member 24 is not pushed in to the first connector 1 side, and prevents downward deformation of the engagement release portion 23 in a state in which the locking member 24 is pushed in to the first connector 1 side. As a result, the engaging portion 22 is not detached from the opening 12 even if an external force is applied to the engagement release portion 23, in a state in which the locking member 24 is pushed in to the first connection 1 side.
The operating portion 246 is a part which the user employs to move the locking member 24 in the longitudinal direction, and comprises a step on which a user may catch a nail. The lateral width of the operating portion 246 is greater than the lateral width or an open portion at the rear of the second housing 21.
A first positioning portion 247R and a first positioning portion 247L, and a second positioning portion 248R and a second positioning portion 248L are recesses for determining the position of the locking member 24 in the front-rear direction. The first positioning portion 247R and the first positioning portion 247L respectively engage with a projection 211R and a projection 211L formed on the second housing 21, whereby it is possible to prevent the locking member 24 from moving without a user operation in a state in which the locking member 24 is not pushed in to the first connector 1 side. The second positioning portion 248R and the second positioning portion 248L respectively engage with the projection 2118 and the projection 211L, whereby it is possible to prevent the locking member 24 from moving without a user operation in a state in which the locking member 24 is pushed in to the first connector 1 side.
As shown in
When the user pushes the operating portion 246 forwards in the state shown in
As a result, the connecting structure is such that when an external force is applied to the engagement release portion 23 in a state in which the locking member 24 is pushed in to the first connector 1 side, the engagement release portion 23 deforms in such a way as to apply a smaller stress than the stress required in order for the engaging portion 22 to deform to a state in which it is disengageable from the opening 12. Accordingly, the engaging portion 22 does not become disengaged from the opening 12 and a state in which the engaging portion is inserted in the opening 12 is maintained.
Meanwhile, when an external force is applied to the engagement release portion 23 in a state in which the locking member 24 is not pushed in to the first connector 1 side, the engaging release portion 23 deforms in such a way as to apply the stress required in order for the engaging portion 22 to deform to a state in which it is disengageable from the opening. When the user applies a force separating the first connector 1 and the second connector 2 in this state, the second connector 2 can be removed from the first connector 1.
As described above, the second connector 2 of the connecting structure S according to this mode of embodiment comprises: the second housing 21 which is provided around the second connection terminal 20 and has the engaging portion 22 which engages with the opening 12 formed in the first housing 11 in a state in which the first connection terminal 10 of the first connector 1 and the second connection terminal 20 of the second connector 2 are mated and said second housing 21 is mated with the first housing 11, and the locking member 24 which is able to move in the lo al direction of the connecting structure S and prevents displacement of the engaging portion 22 in a direction of disengagement from the opening 12 in a state in which said locking member 24 is pushed in to the first connector 1 side. By virtue of the second connector 2 having this configuration, the engaging portion 22 is not disengaged from the opening 12 in a state in which the locking member 24 is pushed in to the first connector 1 side, so a state in which the first connector 1 and the second connector 2 are securely mated is readily maintained.
Furthermore, the locking member 24 is able to move up to a predetermined position on the first connector 1 side in a state in which the first connection terminal 10 and the second connection terminal 20 are mated, and does not move up to the predetermined position in a state in which the first connection terminal 10 and the second connection terminal 20 are not mated. By virtue of the second connector 2 having such configuration, a user is able to ascertain that the first connector 1 and the second connector 2 are not mated, because of the fact that the locking member 24 cannot be moved forwards, so the first connector 1 and the second connector 2 can be securely mated.
The present invention was described above with the aid of a mode of embodiment, but the technical scope of the present invention is not limited to the scope disclosed in the abovementioned mode of embodiment. It will be obvious to a person skilled in the art that various modifications or improvements may be added to the abovementioned mode of embodiment. It will be obvious from the disclosure of the claims that modes to which such modifications or improvements have been added may also be included within the technical scope of the present invention.
The present disclosure may be summarized as disclosing, inter alia, the following Embodiments.
Number | Date | Country | Kind |
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2018-075995 | Apr 2018 | JP | national |