JP2012155929A - Connector, and socket and header for use in the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a connector which stabilizes a pull-out force to allow a socket and a header to be easily separated from each other, even when the number of arranged terminals is increased.SOLUTION: Respective contacts (socket-side terminals) 22 and posts (header-side terminals) 32 are provided with locking parts 10 which engage with mating terminals to hold a coupling state between a socket 2 and a header 3. Engagement amounts k1 of locking parts 10 at portions to which a pull-out force F is mainly applied when the socket 2 and the header 3 are separated from each other, out of the plurality of locking parts 10 are increased, and engagement amounts k2 of the other locking parts 10 are decreased.

Description

  The present invention relates to a connector, and a socket and a header used in the connector.

  As means for electrically connecting two printed boards so as to be detachable, a connector having a socket mounted on one printed board and a header mounted on the other printed board is used. The socket is provided with socket-side terminals, while the header is provided with header-side terminals that come into contact with the socket-side terminals when fitted into the socket. Therefore, by fitting and coupling the header to the socket, the socket side terminal and the header side terminal are electrically connected to each other, and the two printed boards can be conducted.

  By the way, it is known that between the contact portions of the socket side terminal and the header side terminal, a lock portion is provided so as to be engaged with each other's terminal and to maintain the coupling state of the socket and the header. (For example, refer to Patent Document 1).

  In Patent Document 1, the socket-side terminal is provided with a contact protrusion that curves and protrudes in the direction of the mating terminal, and the header-side terminal is provided with a protrusion that climbs over and engages with the contact protrusion. These contact convex portions and projections constitute a lock portion.

JP 2005-294034 A

  However, in the conventional connector, a plurality of socket-side terminals and header-side terminals are arranged in the longitudinal direction of the connector to constitute a terminal group, and the plurality of socket-side terminals and header-side terminals are arranged. The lock portion has an equal engagement amount throughout. The lock portion has a large engagement amount so that the engagement state between the pair of socket side terminals and the header side terminals can be reliably maintained.

  Therefore, when a connector has a plurality of socket side terminals and header side terminals, the locking portion increases with the number of arrangement of these terminals, so the removal force when separating the socket and header is the number of arrangements. Will increase in proportion to For this reason, if the number of terminals is increased, the socket and header become too hard and difficult to separate.

  Accordingly, an object of the present invention is to obtain a connector that can stabilize the removal force and easily separate the socket and the header even when the number of terminals arranged increases.

  In order to achieve the above object, the present invention has a plurality of socket-side terminals and header-side terminals that are detachably contacted, and each socket-side terminal and header-side terminal are connected to each other. In the connector provided with a lock portion that engages with the terminal of the socket and maintains the connection state between the socket and the header, a portion of the plurality of lock portions to which an extraction force is mainly applied when the socket and the header are detached The engagement amount is increased at the lock portion, and the engagement amount is decreased at the other lock portions.

  According to the present invention, the engagement amount of the lock portion is increased at the lock portion where the extraction force is mainly applied when the socket and the header are detached, and is decreased at the other lock portions. Even when the number of arrangements increases, it is possible to prevent the removal force from increasing, and the socket and the header can be easily detached.

  That is, according to the present invention, it is possible to obtain a connector capable of easily separating the socket and the header and the socket and header used in the connector even when the number of terminals arranged increases.

FIG. 1 is a perspective view of an entire socket of a connector according to an embodiment of the present invention as viewed obliquely from above. FIG. 2 is a perspective view of the entire header of the connector according to the embodiment of the present invention as viewed obliquely from above. FIG. 3 is a cross-sectional view of a connector according to an embodiment of the present invention, taken along a line corresponding to line II in FIG. 4 is an enlarged cross-sectional view taken along a line II in FIG. 3 when the engagement amount of the lock portion is increased. FIG. 5 is an enlarged cross-sectional view when the engagement amount of the lock portion is reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 5 show an embodiment of a connector 1 according to the present invention. As shown in FIGS. 1 and 2, the connector 1 of this embodiment includes a socket 2 and a header that are fitted to each other. 3 is provided. In the description of the present embodiment, as shown in the figure, the X direction is the width direction, the Y direction is the longitudinal direction, and the Z direction is the vertical direction.

  As shown in FIG. 1, the socket 2 includes an elongated rectangular socket body 21 formed of an insulating material such as a synthetic resin, and a socket side mounted at a predetermined pitch along the opposed long sides of the socket body 21. And a plurality of contacts 22 as terminals.

  The socket body 21 includes a peripheral wall portion 26 that is continuously formed in a substantially rectangular ring shape along a peripheral edge portion thereof, and a substantially rectangular island portion 27 that is formed at a predetermined interval from the peripheral wall portion 26 in the central portion. The recessed part 23 for fitting the header 3 between these surrounding wall parts 26 and the island part 27 is formed.

  A pair of contacts 22 are provided on both sides in the width direction of the socket 2 provided with the recesses 23, and a plurality of the pairs of contacts 22 are arranged in the longitudinal direction of the socket 2, so that the socket-side terminal group 22G is arranged. It is composed.

  The contact 22 is formed by bending an elastic material such as an elongated metal having conductivity. As shown in FIG. 3, the contact 22 includes a terminal portion 221 that protrudes outward in the width direction of the socket main body 21, and a held portion that extends upward from the inner end portion of the terminal portion 221 and is held by the socket main body 21. A first contact portion 223 that extends downward while curving inwardly from the upper end portion of the held portion 222, and the lower end portion of the first contact portion 223. A connecting portion 224 extending inward of the socket body 21, and rises upward from an inner end portion of the connecting portion 224, and its tip portion curves and protrudes in a direction facing the first contact portion 223. Second contact portion 225 to be provided.

  The first contact portion 223 and the second contact portion 225 are provided with a resilience in a direction opposite to each other, and the first contact portion 223 and the second contact portion 225 are the sockets described above. The terminal portion 221 is disposed so as to protrude outward along the lower end of the socket main body 21 while being exposed in the recess 23 of the main body 21. Thus, the terminal part 221 protruding from the socket body 21 is mounted on one wiring board (not shown).

  On the other hand, the header 3 is mounted at a pitch equal to the pitch of the contacts 22 along an elongated long rectangular header body 31 which is similarly formed of an insulating material such as a synthetic resin, and the opposite long sides of the header body 31. And a plurality of posts 32 as header side terminals.

  The header main body 31 includes a peripheral wall portion 33 continuously formed in a substantially rectangular ring shape along the peripheral edge portion thereof, and a substantially flat bottom wall portion 34 is formed inside the peripheral wall portion 33.

  A pair of posts 22 are provided on both sides in the width direction where the peripheral wall portion 33 is provided, and a plurality of the pairs of posts 32 are arranged in the longitudinal direction of the header 3 to constitute a header side terminal group 32G. ing.

  The post 32 is formed by bending an elastic material such as an elongated metal having electrical conductivity, like the contact 22. As shown also in FIG. 3, the post 32 is bent in a U shape downward from the first contact portion 321 exposed on the outer surface of the header body 31 and the upper end portion of the first contact portion 321. The second contact portion 322 and a terminal portion 323 projecting outward from the second contact portion 322 in the width direction of the header body 31 are provided.

  The first contact portion 321 and the second contact portion 322 bent in a U-shape sandwich the peripheral wall portion 33 of the header body 31 from above, and in this state, the terminal portion 323 is connected to the header body 31. It protrudes outward along the lower end. Thus, the terminal portion 323 protruding from the header body 31 is mounted on the other wiring board (not shown).

  As shown in FIG. 3, the connector 1 having the socket 2 and the header 3 as described above inserts the peripheral wall portion 33 to which the post 32 is attached into the recess 23 to which the contact 22 is attached. As a result, the first contact portion 321 of the post 32 is press-contacted to the first contact portion 223 of the contact 22 so as to be detachable and the second contact portion 322 of the post 32 is contacted with the second contact portion of the contact 22. It is press-contacted to 225 so that contact / separation is possible. In this state, the contact 22 and the post 32 are electrically connected so that one wiring board and the other wiring board can be made conductive.

  At this time, as shown in FIG. 4, the first contact portion 223 of the contact 22 and the first contact portion 321 of the post 32 are engaged with each other's terminals so that the socket 2 and the header 3 A lock portion 10 that holds the coupled state is provided.

  The lock portion 10 of the present embodiment includes a first step portion 11 formed at the first contact portion 223 of the contact 22, and a second step portion 12 formed at the first contact portion 321 of the post 32. It is constituted by.

  The first step portion 11 is formed by thinning the lower surface of the contact surface of the post 32 of the first contact portion 223 of the contact 22 via an inclined step surface 11a. On the other hand, the second stepped portion 12 is formed by thinning the contact 22 contact surface of the first contact portion 321 of the post 32 on the lower side (upper side in FIG. 4) via the inclined stepped surface 12a. Is formed.

  Therefore, when the header 3 is fitted in the socket 2, the first and second contact portions 321 and 322 of the post 32 resist the elastic force of the first and second contact portions 223 and 225 of the contact 22. Then, it is inserted while being pushed open, and the second stepped portion 12 gets over the first stepped portion 11 to be locked as shown in FIG. Then, the stepped surface 11a of the first stepped portion 11 and the stepped surface 12a of the second stepped portion 12 are engaged with each other as shown in the figure, so that the coupling state of the socket 2 and the header 3 is maintained. .

  On the other hand, when the socket 2 and the header 3 are separated, the stepped surface 11a of the first stepped portion 11 and the stepped surface 12a of the second stepped portion 12 are removed by removing both in the peeling direction. While relatively sliding, the first and second contact portions 223 and 225 of the contact 22 are pushed open to disengage the first step portion 11 and the second step portion 12, and in this state the socket 2 And the header 3 can be separated.

  At this time, the removal force F for detaching the socket 2 and the header 3 is determined by the magnitude of the engagement amount k between the first step portion 11 and the second step portion 12.

  That is, as shown in FIG. 4, when the engagement amount k <b> 1 of the lock portion 10 constituted by the first step portion 11 and the second step portion 12 is large, the removal force between the socket 2 and the header 3. On the other hand, as shown in FIG. 5, when the engagement amount k2 of the lock portion 10 is small, the removal force F between the socket 2 and the header 3 is small as shown in FIG. At this time, the engagement amount k is a width where the step surface 11a and the step surface 12a are in contact. For example, when the engagement amount k1 shown in FIG. 4 is large, the engagement width is about 0.02 mm. When the engagement amount k2 shown in FIG. 5 is small, the engagement width is set to about 0.015 mm.

  Here, in the present embodiment, among the plurality of lock portions 10, the engagement amount k1 is increased at the lock portion 10 where the removal force F is mainly applied when the socket 2 and the header 3 are separated from each other. The engagement portion k2 is made small by the lock portion 10. That is, the engagement amount k2 of the other lock portions 10 is set to be smaller than the engagement amount k1 of the lock portions 10 where the extraction force F is mainly applied. In addition, the site | part to which the extraction force F is mainly applied has pointed out the vicinity which an operator etc. hold with a hand, a finger, etc., for example, when separating the socket 2 and a header.

  In the present embodiment, the portion to which the removal force F is applied is set at both ends of the socket-side terminal group 22G and the header-side terminal group 32G, and the lock unit 10 that increases the engagement amount k1 is illustrated in FIG. As shown in FIGS. 1 and 2, the socket side terminal group 22G and the header side terminal group 32G are provided at both ends indicated by A, B and A ′, B ′ in the drawing. By doing so, when the connector 1 is formed in an elongated shape as in the present embodiment, it is preferable because the connection state between the socket 2 and the header 3 can be more stably maintained.

  In the present embodiment, the socket-side terminal group 22G is configured by arranging a plurality of contacts 22 provided in the width direction of the connector 1 in the longitudinal direction of the connector 1, and the header-side terminal group 32G A plurality of posts 32 provided in the width direction of the connector 1 are arranged in the longitudinal direction of the connector 1. Therefore, the portions to which the extraction force F is applied are set at the four corner portions C1, C2, C3, C4 of the socket side terminal group 22G and the four corner portions C1 ′, C2 ′, C3 ′, C4 ′ of the header side terminal group 32G. ing. The four corner portions C1, C2, C3, C4 and C1 ′, C2 ′, C3 ′, C4 ′ are each provided with a lock portion 10 having an increased engagement amount k1.

  By the way, in this embodiment, in addition to both ends of the socket side terminal group 22G and the header side terminal group 32G, as shown in FIGS. 1 and 2, D and D ′ of the socket side terminal group 22G and the header side terminal group 32G. The lock portion 10 having a large engagement amount k1 is also provided at the center portion indicated by. As described above, in this embodiment, since the lock portion 10 having the increased engagement amount k1 is further provided in the center portion of the connector 1, the click feeling when the socket 2 and the header 3 are fitted is increased. And there exists an advantage that generation | occurrence | production of the coupling failure of the socket 2 and the header 3 can be suppressed.

  With the configuration described above, according to the connector 1 of the present embodiment, the engagement amount k of the lock portion 10 of the contact 22 and the post 32 is applied to the portion where the extraction force F is mainly applied when the socket 2 and the header 3 are detached. The lock portion 10 is made larger and the other lock portions 10 are made smaller. As a result, even when the number of contacts 22 and posts 32 is increased, it is possible to suppress the removal force F of the entire connector 1 from increasing, and the removal force F can be stabilized to stabilize the socket 2 and the header 3. Can be easily separated.

  That is, according to the present embodiment, the connector 1 that allows the socket 2 and the header 3 to be easily detached even when the number of terminals arranged increases, and the socket 2 and the header 3 used in the connector 1 are provided. Obtainable.

  Further, in the present embodiment, the portions to which the extraction force F is applied are the ends A, B and A ′, B ′ of the socket-side terminal group 22G and the header-side terminal group 32G (specifically, the four corners C1 to C4 and C1 'to C4'). Therefore, the lock portions 10 having a large engagement amount k1 can be provided at both end portions A, B and A ′, B ′ (four corner portions C1 to C4 and C1 ′ to C4 ′). 3 can be held more stably.

  In this embodiment, the socket-side terminal group 22G and the header-side terminal group 32 are provided in a pair in the width direction. However, the contacts 22 and the posts 32 are not provided in the width direction, but each is provided in the width direction. The structure provided in one may be sufficient. Even in that case, the lock portions 10 having the increased engagement amount k1 may be provided at both ends of the socket-side terminal group 22G and the header-side terminal group 32G.

  Furthermore, in the present embodiment, the lock portion 10 having an increased engagement amount k1 is further provided at the central portions D and D ′ of the socket side terminal group 22G and the header side terminal group 32G, respectively. Therefore, it is possible to increase the click feeling when fitting the socket 2 and the header 3, and to suppress the occurrence of poor coupling between the socket 2 and the header 3, thereby providing a highly reliable connector. .

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

  For example, the shape of the contact and the post is not limited to the above-described embodiment, and may be any shape that can come into contact with and separate from and can be provided with the lock portion.

1 Connector 2 Socket 22 Contact (Socket side terminal)
22G Socket side terminal group 3 Header 32 Post (header side terminal)
32G Header side terminal group 10 Lock part k Lock part engagement amount F Removal force

Claims (6)

There are a plurality of socket-side terminals and header-side terminals that come into and out of contact with each other. Each socket-side terminal and header-side terminal are engaged with each other's terminals, and the connection state of the socket and header is established. In the connector provided with the lock part to hold,
Among the plurality of lock portions, the engagement amount is increased at the lock portion of the portion to which the extraction force is mainly applied when the socket and the header are detached, and the engagement amount is decreased at the other lock portions. Connector.   2. The part to which the removal force is applied is set at both ends of a socket side terminal group composed of a plurality of socket side terminals and a header side terminal group composed of a plurality of header side terminals. The connector described.   Each of the socket side terminals and the header side terminals is provided in a pair in the width direction of the connector, and a plurality of the pair of socket side terminals are arranged in the longitudinal direction of the connector to constitute a socket side terminal group. A plurality of header side terminals are arranged in the longitudinal direction of the connector to constitute a header side terminal group, and the portions to which the removal force is applied are set at the four corner portions of the socket side terminal group and the header side terminal group, respectively. The connector according to claim 1 or 2, wherein   4. The connector according to claim 2, wherein a lock portion having a large engagement amount is further provided at a central portion of each of the socket side terminal group and the header side terminal group.   The socket used with the connector of any one of Claims 1-4.   The header used with the connector of any one of Claims 1-4.

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