1. Field of the Invention
This invention relates to a connector, and more particularly to a connector for use in e.g. a liquid-crystal display.
2. Description of the Related Art
Conventionally, there has been proposed a lamp-holding structure for connecting a lamp and an inverter board (see Japanese Laid-Open Patent Publication (Kokai) No. 2004-335227). The lamp-holding structure is comprised of a contact, a lamp-holding member, and a covering member.
The contact is comprised of a pressure contact portion, a contact spring portion, a holding portion, and a connection portion. The pressure contact portion is brought into pressure contact with a lamp terminal of the lamp held by the covering member. The contact spring portion is opposed to a holding board disposed at the top end surface of the lamp holding member in the direction of the thickness of the holding board. Further, the contact spring portion is movable in the vertical direction. The front end of the contact spring portion is warped upward. The holding portion is press-fitted in the lamp holding member. Thus, the contact is held by the lamp holding member. The connection portion connects between the pressure contact portion and the contact spring portion.
The lamp holding member has a first accommodating portion for accommodating the covering member and the connection portion of the contact.
The covering member has a lamp accommodating portion for accommodating one end of the lamp and a terminal inserting portion into which a lamp terminal of the lamp is inserted.
To hold the lamp by the lamp-holding structure, first, by press-fitting the holding portion of the contact in the lamp holding member, the contact is caused to be held by the lamp holding member. When the contact is held by the lamp holding member, the connection portion of the contact is received into the first accommodating portion of the lamp holing member.
Next, the lamp terminal of the lamp is inserted into the terminal inserting portion of the covering member, and one end of the lamp is received into the lamp accommodating portion of the covering member.
Finally, the covering member is received into the first accommodating portion of the lamp holing member. When the covering member is received into the first accommodating portion, the pressure contact portion of the contact is brought into pressure contact with the lamp terminal of the lamp.
To electrically connect between the lamp and the inverter board by the lamp-holding structure, it is only necessary to insert one end of the inverter board between the holding board disposed on the upper end surface of the lamp holding member and the contact spring portion of the contact along the upper end surface of the lamp holding member. As described above, since the front end of the contact spring portion of the contact is warped upward, when one end of the inverter board is inserted between the holding board and the contact spring portion of the contact along the upper end surface of the lamp holding member, the contact spring portion smoothly climbs onto the upper surface of the inverter board.
In the above-described lamp-holding structure, when inserting one end of the inverter board between the holding board and the contact spring portion of the contact along the upper end surface of the lamp holding member, there is a fear that the contact spring portion does not normally climb onto the inverter board but is pressed against the inverter board, causing the contact spring portion to be bent.
The present invention has been made in view of these circumstances, and an object thereof is to provide a connector which is free from a fear of a contact portion of a contact from being broken.
To attain the above object, in a first aspect of the present invention, there is provided a connector comprising a housing that has an accommodating portion into which part of a board is inserted, a contact that has a contact portion which is capable of being brought into contact with the part of the board accommodated in the accommodating portion, and is held by the housing, and a slider that is slidably provided in the housing, and brings the contact portion into and out of contact with the part of the board in a direction of thickness of the board, by sliding.
With the arrangement of the connector according to the first aspect of the present invention, since the contact portion of the contact is brought into and out of contact with the part of the board in the direction of the thickness of the board by sliding the slider, it is possible to prevent the contact portion from being brought into contact with the part of the board when the part of the board is received in the accommodating portion.
Further, the contact portion is capable of being brought into contact with the part of the board in the direction of the thickness of the board, and hence there is no fear of the contact portion being urged in a direction parallel to the mounting surface of the board.
Preferably, the slider has a cam surface for moving the contact portion in the direction of the thickness, and wherein the contact has an engaging portion for being engaged with the cam surface.
Preferably, the housing has a guiding portion for guiding the slider in a sliding direction thereof.
Preferably, the contact has a guiding portion for guiding the slider in a sliding direction thereof.
Preferably, the housing has an opening for receiving the part of the board in the accommodating portion in the direction of the thickness, and the slider has a lid portion that opens and closes the opening by sliding.
To attain the above object, in a second aspect of the present invention, there is provided a connector comprising a housing that has an accommodating portion into which part of a board is inserted into a direction of thickness of the board, and an opening for receiving part of the board in the accommodating portion in the direction of the thickness of the board, a contact that has a contact portion which is capable of being brought into contact with the part of the board inserted in the accommodating portion, and a sandwiching portion for sandwiching the part of the board inserted in the accommodating portion and pushing the part against the contact portion, and is held by the housing, and a slider that is mounted on the housing in a manner slidable between an opening position at which the opening is opened and a closing position at which the opening is closed, for maintaining a state of the part of the board sandwiched by the sandwiching portion when the slider is at the closing position, and releasing the state of the part of the board sandwiched by the sandwiching portion when the slider is at the opening position.
Preferably, the housing has a guiding portion for guiding the slider in a sliding direction thereof.
Preferably, the slider has a lid portion that opens and closes the opening by insertion and removal of the part of the board into and from the accommodating portion of the housing.
According to the present invention, it is possible to provide a connector which is free from a fear of a contact portion of a contact from being damaged.
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.
The present invention will now be described in detail with reference to the drawings showing preferred embodiments thereof.
As shown in
As shown in
The front board 311 has an upper end portion formed with an opening 311a, and a lower end portion formed with an opening 311b.
The rear board 312 is formed such that an upper end surface thereof is lower than an upper end surface of the front board 311. The rear board 312 has an inner surface provided projecting portions 314 at both sides thereof. Each projecting portion 314 extends in the direction H3 of the height of the housing 3. By connecting a front end of each projecting portion 314 to each side board 313, a holding groove 314a is formed at the front end of each projecting portion 314. The holding groove 314a extends in the direction H3 of the height of the housing 3.
Two side boards 313 have a same shape. Each side board 313 has an outer surface formed with a wedge-like protrusion 313a in a substantially central part thereof. Each side board 313 has an inner surface formed with a protruding portion (guiding portion) 313b on the upper portion. Further, each side board 313 has an upper portion having two recesses 313c and 313d formed in an inner surface thereof.
A space surrounded by the front board 311, the rear board 312, and two side boards 313 (inner space of the housing body 31) is an accommodating space (accommodating portion) 315 which accommodates part of the inverter board 21.
The flange 32 is formed on the outer surface of the housing body 31. The flange 32 is located slightly below the protrusions 313a in the direction H3 of the height of the housing 3.
The flange 32 has an upper surface formed with a wrong insertion-preventing protruding portion 33.
As shown in
The barrel portion 51 is comprised of a front board 511 and two side boards 512. The two side boards 512 are continuous respectively to the opposite side portions of the front board 511. The height dimension of the side board 512 is larger than that of the front board 511, and an upper end of the side board 512 is positioned higher than the upper end of the front board 511. The upper end of each side board 512 is bent inward substantially at right angles to form a rail (guiding portion) 512a. The rail 512a has a rear end formed with a protruding portion 512b.
The board connection portion 52 has a contact portion 521, a spring portion 522, and a supporting portion 523. The contact portion 521 is bent into a substantially L-shape. The contact portion 521 has two engaging portions 521a. The engaging portion 521a is formed into a substantially J-shape, and is located at a front end (one end) of the contact portion 521. The spring portion 522 has one end which is bent into a substantially U-shape, and is continuous to the other end of the contact portion 521. The spring portion 522 is elastically deformable in the direction H5 of the height of the contact 5. The supporting portion 523 has a plate-like shape, and has one end continuous to the other end of the spring portion 522, and the other end continuous to the upper end of the front board 511. The supporting portion 523 supports the spring portion 522.
The cold-cathode tube connection portion 53 includes two contact portions 531 and a tube holding portion 532. The two contact portions 531 are bent into a substantially J-shape. Each of the contact portions 531 is elastically deformable in the direction W5 of the width of the contact 5. An upper end of each contact portion 531 is continuous to the lower end of each side board 512. The lower ends of the contact portions 531 are brought into contact with each other. The tube holding portion 532 has a lower part thereof formed into a bifurcated shape. The tube holding portion 532 has a lower part formed with a cutout 532a including a portion 532b chamfered such that the cold-cathode tube 22 can be easily inserted. The upper part of the tube holding portion 532 is substantially belt-like, bent into a crank-shape, and is continuous to the lower end of the front board 511.
Each of two leg portions 54 is substantially L-shaped, and is continuous to the lower part of the front board 511.
As shown in
Further, each side wall portion 71 has an outer surface formed with a protruding portion 71d having a wedge-like shape. When the slider 7 is slid in the front-rear direction B3, the protruding portions 71d are slightly fitted in the recesses 313c or 313d (see
Further, each side wall portion 71 has a lower portion formed with a cam face 71e. The cam face 71e is engaged with the engaging portion 521a of the contact portion 521 of the contact 5 (see
The lid portion 72 is connected to the upper portions of the two side wall portions 71.
The rear wall portion 73 is continuous to the rear portions of the side wall portions 71.
Next, a description will be given of assembling the connector 1. First, the contact 5 (see
Next, the slider 7 is assembled to the housing 3 and the contact 5 from the rear side of the housing 3. At this time, as shown in
Finally, the slider 7 is slid forward (in the direction toward the front board 311 of the housing 3), to fit the protruding portions 71d of the slider 7 shown in
The operations described above completes assembly of the connector 1. After assembling the connector 1, when the slider 7 is slid backward for a predetermined distance by the wrong operation or the like, the slider 7 is locked by fitting the protruding portions 512b of the contact 5 in the recesses 71c of the slider 7 (see
The assembled connector 1, as shown in
When inserting the connector 1 into the hole 23a of the chassis 23, if the connector 1 is set in the wrong direction, the wrong insertion-preventing protruding portion 33 of the housing 3 of the connector 1 is not inserted into the a recess 23b (see
Before inserting the inverter board 21 into the accommodating space 315 of the housing 3 of the connector 1, one end of the cold-cathode tube 22 is caused to be held by the tube holding portion 532 of the contact 5 of the connector 1 (see
To connect the inverter board 21 to the connector 1, first, the protruding portions 71d (see
Next, as shown in
Finally, the slider 7 is slid forward along the front-rear direction B3 of the housing 3 (in the direction toward the front board 311). As a result, the protruding portions 71d of the slider 7 (see
When the slider 7 is slid to the closing position, the opening 315a of the accommodating space 315 of the housing 3 is covered by the lid portion 72 of the slider 7, so that the inserting portion 21a of the inverter board 21 cannot be pulled out in the direction H3 of the height of the housing 3.
As described above, according to the first embodiment, the contact portion 521 of the contact 5 is moved in the direction of the thickness of the inverter board 21 to be brought into contact with the inverter board 21, so that dust is hardly generated during work of connecting the contact 5 and the inverter board 21.
Further, when the slider 7 is slid to the closing position, the opening 315a of the accommodating space 315 of the housing 3 is covered by the lid portion 72 of the slider 7, which makes it possible to prevent dust from entering the accommodating space 315 from outside.
Moreover, since the protrusions 313a are provided on the outer surface of the housing 3, the connector 1 can be directly mounted on the chassis 23, which makes it possible to easily mount the connector 1 on the chassis 23.
Component parts identical to those of the connector 1 according to the above-described first embodiment are denoted by identical reference numerals, and detailed description thereof is omitted, while only main component parts different in construction from those of the first embodiment will be described hereinafter.
As shown in
The front board 2311 has an inner surface provided with two guiding grooves 2313b in which the two protruding portions (guiding portions) 271a of the slider 207 (see
As shown in
The barrel portion 251 is comprised of a front board 2511 and two side boards 2512.
The board connection portion 252 is comprised of a contact portion 2521 and a spring portion 2522. The spring portion 2522 has one end continuous to the contact portion 2521, and the other end continuous to the front board 2511. The spring portion 2522 is elastically deformable in a direction H21 of the thickness of the inverter board 21 (see
The sandwiching portion 255 is comprised of protruding portions 2551 and spring portions 2552. The protruding portions 2551 sandwich the inserting portion 21a of the inverter board 21 in a direction W21a (see
The slider 207 is comprised of two side wall portions 271, an opening/closing lid portion 272, and a rear wall portion 273. The slider 207 is integrally molded of a synthetic resin having flexibility. Each side wall portion 271 has an upper end which has a first projecting portion 271f formed on an outer surface thereof and a projecting portion 271g formed on an inner surface thereof. Further, each side wall portion 271 has an outer surface formed with a first protruding portion 271h and a second protruding portion 271i. Furthermore, each side wall portion 271 has a front end provided with a protruding portion 271a extending in a vertical direction. The opening/closing lid portion 272 is comprised of two projecting portions 272a. The projecting portions 272a are formed on the inner surfaces of the side wall portions 271, respectively. The projecting portions 272a project in the direction coming closer to each other, and closes the opening 315a (see
To connect the inverter board 21 to the connector 201, first, the slider 207 is set to the opening position, as shown in
Next, the inserting portion 21a of the inverter board 21 is inserted into the accommodating space 315 (see
Subsequently, as shown in
According to the second embodiment, the same advantageous effects as provided by the first embodiment are obtained.
It should be noted that although in the above-described first embodiment, it is possible to insert the inserting portion 21a of the inverter board 21 in the accommodating portion 315 from two directions, it is only necessary that the inserting portion 21a can be inserted in the accommodating portion 315 from one direction of the housing.
Further, although in the above-described second embodiment, it is possible to insert the inserting portion 21a of the inverter board 21 in the accommodating portion 315 from two directions, it is only necessary to that the inserting portion 21a can be inserted in the accommodating portion 315 from the direction H203 of the height of the housing 203.
Although the sliders 7 and 207 are formed as resin-made sliders in the first and the second embodiments, the sliders 7 and 207 may be formed of a metal, insofar as they can maintain insulation properties between the upper surface of the inverter board 21 and the contacts 5, 205.
It is further understood by those skilled in the art that the foregoing are the preferred embodiments of the present invention, and that various changes and modification may be made thereto without departing from the spirit and scope thereof.
Number | Date | Country | Kind |
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2008-159027 | Jun 2008 | JP | national |
Number | Name | Date | Kind |
---|---|---|---|
3899234 | Yeager et al. | Aug 1975 | A |
7347705 | Huang et al. | Mar 2008 | B1 |
7637625 | Kwon et al. | Dec 2009 | B2 |
7651354 | Kim | Jan 2010 | B2 |
Number | Date | Country |
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2004-335227 | Nov 2004 | JP |
Number | Date | Country | |
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20090318006 A1 | Dec 2009 | US |