JP4506712B2 - connector - Google Patents

Description

  The present invention relates to a connector used for electrical connection between printed wiring boards.

  Conventionally, as shown in FIG. 15, sockets 1 each mounted on one of two printed wiring boards P <b> 1 and P <b> 2 arranged side by side in a direction crossing the thickness direction in the same direction. And a header 2, and a connector for electrically connecting the printed wiring board P1 on which the socket 1 is mounted and the printed wiring board P2 on which the header 2 is mounted is provided (for example, see Patent Document 1).

  The socket 1 has a housing 3 having a connection recess 30 that opens in a direction intersecting the thickness direction of the printed wiring boards P1 and P2, and is held by the housing 3 so that a part thereof is exposed in the connection recess 30. And a plurality of contacts 4 electrically connected to the printed wiring board P1.

  The header 2 contacts the contact 4 of the socket 1 when the housing 5 is inserted into the connection recess and the housing 5 is held in the housing 5 and is electrically connected to the printed wiring board P2 so that the housing 5 is inserted into the connection recess 30. And a plurality of conductive contacts 6.

When the header 2 and the socket 1 are connected to each other by inserting the housing 5 of the header 2 into the connection recess 30 of the housing 3 of the socket 1, the contacts 4 and 6 of the socket 1 and the header 2 are brought into contact with each other. The printed wiring boards P1 and P2 are electrically connected via the contacts 4 and 6.
Japanese Patent Laid-Open No. 2000-100501

  However, in the above conventional example, when the header 2 fixed to the printed wiring boards P1 and P2 and the socket 1 are to be connected to each other, one of the printed wiring boards P1 and P2 is positioned in the thickness direction with respect to the other. It was necessary to displace in the direction intersecting the thickness direction after aligning the two. Therefore, after fixing each printed wiring board P1, P2 to, for example, a case (not shown) that accommodates each printed wiring board P1, P2, the header 2 and the socket 1 cannot be connected to each other.

  The present invention has been made in view of the above reasons, and its purpose is to facilitate connection even when the printed wiring board on which the header is mounted and the printed wiring board on which the socket is mounted are fixed. Is to provide a simple connector.

The invention of claim 1 includes a header and a socket mounted on each of the printed wiring boards arranged side by side in a direction crossing the thickness direction, and the printed wiring board and the socket on which the header is mounted are mounted. A connector for electrically connecting a printed wiring board, wherein the socket is made of an insulating material and has a connection recess opened on at least one side in the thickness direction of the printed wiring board, and each made of a conductive material. A plurality of contacts that are held in the housing and are electrically connected to the printed wiring board so that a part of the header is exposed in the recess, and the header is made of an insulating material and at least a part thereof is inserted into the connection recess. Each housing made of a conductive material and held in the housing and electrically connected to the printed wiring board A plurality of contacts that are in contact with the socket contacts when inserted into the connection recess, and one of the socket and the header is made of an insulating material and fixed to the printed wiring board to support the socket or header contact One of the socket and the header is provided with a support member, and each contact is made of an elastic conductive material, and is electrically connected to the printed wiring board, and connected to the terminal portion. The supported portion supported by the support member, the supported portion held by the housing, and provided between the supported portion and the supported portion and extending in a direction crossing the thickness direction of the printed wiring board The held portion is displaced in the thickness direction of the printed wiring board by at least the insertion depth of the header housing with respect to the connection recess of the socket with respect to the supported portion. First contact so that the elastically deformable coupling portion possess, in one with a support member of the socket and the header, the contact, which lies opposite to each other with the supported portion across the support member And the second contact, and in the first contact and the second contact, the connecting portion is extended in the same direction with respect to the supported portion and in a direction in which the supported portions are arranged, and the supported portion is The connecting portion of the first contact located on the side where the connecting portion is extended with respect to the support member is located closer to the printed wiring board than the connecting portion of the second contact, and the first contact is held The portion is located closer to the support member than the held portion of the second contact, and includes a spacer made of an insulating material and interposed between the connecting portion of the first contact and the connecting portion of the second contact. To spacer Is provided with a press-fitting groove in which the first contact connecting portion is press-fitted and fixed on the surface facing the printed wiring board, and the second contact connecting portion is loosely inserted on the surface opposite to the surface on which the press-fitting groove is provided. A loose insertion groove is provided .

According to the present invention, even if the printed wiring board on which the socket is mounted and the printed wiring board on which the header is mounted are fixed, the header housing can be easily socketed by elastically deforming the connecting portion. The header and the socket can be connected by being inserted into the connection recess. Further, the insulation between the connecting portions of the first contact and the second contact is ensured by the spacer. Further, while the spacer is coupled to the first contact to ensure insulation between the first contact coupling portion and the second contact coupling portion, the second contact coupling portion is not restrained by the spacer. Therefore, the width of elastic deformation is secured.

According to a second aspect of the present invention, in the first aspect of the invention, the spacer is supported by the leg portion with a gap between the leg portion contacting the printed wiring board and the printed wiring board, and is inserted into the press-fit groove and loosely inserted. It has a main part which has a slot and intervenes between the connecting part of the 1st contact and the connecting part of the 2nd contact.

  According to the present invention, excessive deformation of the connecting portion of the first and second contacts in the direction approaching the printed wiring board can be prevented by the spacer.

According to a third aspect of the present invention, in the first or second aspect of the invention, one of the socket and the header is provided with a supporting member, and is swelled in a direction intersecting with the extending direction of the connecting portion with respect to the supported portion. A spring portion that is bent and is elastically deformable so as to change the distance between the supported portion and the held portion is provided in each connection portion of each contact.

  According to the present invention, the displacement of the socket and the header in the direction in which the printed wiring boards are arranged is absorbed by the elastic deformation of the spring portion.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the support member has a protruding portion protruding in the extending direction of the connecting portion with respect to the supported portion, and the thickness of the substrate at the protruding portion. At least one of the surfaces directed in the direction is provided with a plurality of storage grooves each storing a part of a connecting portion of one contact.

  According to this invention, it becomes difficult for the connecting portions of the contacts to come into contact with each other by being partially stored in the storage groove of the protruding portion of the support member. In addition, since the support member is larger than when no protrusion is provided, the support member can be easily held during mounting.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the support member is provided with the support member of the socket and the header. A holding groove into which the contact is press-fitted is provided, and each holding groove between the support member and the housing is opened to at least one side in the thickness direction of the printed wiring board.

  According to the present invention, when assembling a header and a socket having a support member, the housing, the contact, and the support member can be assembled so as to overlap in the thickness direction of the printed wiring board.

According to the present invention, one of the socket and the header includes a support member that is made of an insulating material and is fixed to the printed wiring board and supports the contact. In the socket and the header that includes the support member, each contact is Respectively connected to the terminal portion and supported by the support member and provided between the supported portion held by the housing and extended in the direction crossing the thickness direction of the printed wiring board to be held Since the connecting portion is elastically deformed so that the portion is displaced in the thickness direction of the printed wiring board by at least the insertion depth of the header housing with respect to the connection concave portion of the socket with respect to the supported portion, the printed circuit mounted with the socket Even when the wiring board and the printed wiring board on which the header is mounted are fixed, the connection portion is elastically deformed to form a head. It can be connected to the header and socket housing and easily inserted into the connection recess of the socket. In addition, since a spacer is made of an insulating material and interposed between the connection portion of the first contact and the connection portion of the second contact, the insulation between the connection portion of the first contact and the second contact is a spacer. Secured by. Further, the spacer is provided with a press-fitting groove in which the connecting portion of the first contact is press-fitted and fixed on the surface facing the printed wiring board, and the second contact is connected on the surface opposite to the surface on which the press-fitting groove is provided. Since the loose insertion groove into which the portion is loosely inserted is provided, the spacer is connected to the first contact while ensuring insulation between the connection portion of the first contact and the connection portion of the second contact. Since the connecting portion of the second contact is not restrained by the spacer, the width of elastic deformation is secured.

  As shown in FIGS. 1 and 2, the present embodiment includes a socket 1 and a header 2 mounted on different printed wiring boards P1 and P2. Hereinafter, the top, bottom, left, and right are based on FIG. 1, and the front-back direction in FIG. 1 (the lower right-upper left direction in FIG. 2) is referred to as the front-rear direction. That is, the thickness direction of the printed wiring boards P1 and P2 is referred to as the up and down direction, and the direction in which the printed wiring boards P1 and P2 are arranged is referred to as the left and right direction.

  The socket 1 is made of, for example, an insulating material such as a synthetic resin and has a rectangular parallelepiped shape that is long in the front-rear direction. The socket 3 is provided with a connection recess 30 on the upper surface, and a metal plate is punched or bent, for example. A plurality of contacts (30 in the figure) are respectively arranged on the left and right sides of the connection recess 30 so as to be partially exposed in the connection recess 30 and are provided with contacts 4 held in front and back.

  As shown in FIGS. 3 and 4, a plurality of holding grooves 31 for holding the contacts 4 are respectively provided on the left and right sides of the connection recesses 30 in the housing 3 of the socket 1 corresponding to the contacts 4 one by one. It is provided across the inside and outside of the connection recess 30. The contact 4 of the socket 1 has an inverted U-shape and a held portion 41 that is press-fitted and held in the holding groove 31, and projects from the end located inside the connection recess 30 in the held portion 41 inward in the left-right direction. And a contact portion 42 that is bent upward and has elasticity in a direction that displaces the tip portion to the left and right, and protrudes in a direction away from the housing 3 in the left-right direction from the end portion of the held portion 41 located outside the connection recess 30. And a terminal portion 43 to be soldered to the printed wiring board P1. Further, a positioning projection 32 that engages with a positioning hole (not shown) provided in the printed wiring board P <b> 1 projects downward from the lower surface of the housing 3 of the socket 1.

  As shown in FIG. 5, the header 2 includes a housing 5 made of an insulating material such as synthetic resin and having a connection portion 50 inserted into the connection recess 30, and a plurality of headers 2 on the left and right sides of the connection portion 50. Contacts 6a and 6b held side by side are provided.

  In the housing 5 of the header 2, holding grooves 51 a and 51 b (see FIG. 7) for holding the contacts 6 a and 6 b are provided on the left and right sides of the connection portion 50, respectively. As shown in FIGS. 6A and 6B, the contacts 6a and 6b of the header 2 are respectively held parts 61 to be press-fitted and held in the holding grooves 51a and 51b, and from the held parts 61 in the left-right direction. It has a contact part 62 that protrudes in a direction away from the connection part 50 and is elastically deformed so as to bend upward and displace the tip part left and right. Here, a step 62 a that makes the upper side thickness dimension smaller than the lower side is provided on the left and right surfaces of the contact portion 62 on the side away from the connection portion 50, and the contact portion of the contact 4 of the socket 1. 42 is provided with an engaging convex portion 42a bent so as to bulge inward in the left-right direction. When the connection portion 50 is inserted into the connection recess 30, the contacts 4, 6 a, 6 b are elastically deformed, and when the engagement protrusion 42 a reaches the upper side of the step 62 a, the contacts 4, 6 a, 6 b are elastically restored. By doing so, a click feeling is given to the worker. Here, the engagement convex portion 42 a is positioned above the connection concave portion 30, so that the connection portion 50 is prevented from falling off from the connection concave portion 30. Further, on both front and rear end surfaces of the held portion 61, biting protrusions 61a are formed so as to bite into the inner surfaces of the holding grooves 51a and 51b, respectively. Further, as shown in FIG. 7, projecting portions 52 that project to the left and right larger than the contact portions 62 of the contacts 6 a and 6 b are respectively provided at both front and rear ends of the connecting portion 50 of the housing 5. In addition, the protrusion 52 can be provided when the connection portion 50 is inserted into and removed from the connection recess 30. Further, a beam portion 53 is installed between the front end portions of the protruding portion 52, and the mechanical strength of the housing 5 is improved by the beam portion 53 and the contact portion 62 of the contact 6b is protected.

  Furthermore, the header 2 includes a support member 7 that is fixed to the printed wiring board P2 and supports the contacts 6a and 6b. As shown in FIG. 8, the support member 7 has a rectangular parallelepiped main body 7a and a protruding portion 7b protruding leftward from the upper end of the main body 7a. Since the projecting portions 7b are provided, the front and rear end surfaces and the upper surface area of the support member 7 are increased. Therefore, when the support member 7 is attached to the printed wiring board P2 (that is, the header 2 is attached to the printed wiring board). It is easy to hold the support member 7 from both the front and rear sides and hold the upper surface by vacuum suction when mounting on P2. As shown in FIG. 9, the support member 7 is inserted into the positioning hole (not shown) penetrating the printed wiring board P2 in the thickness direction on the lower surface of the main body portion 7a to the printed wiring board P2. Positioning projections 7c for positioning are projected downward. A plurality of holding grooves 71a and 71b for holding the contacts 6a and 6b are provided on the front and rear surfaces of the main body portion 7a of the support member 7 respectively corresponding to the contacts 6a and 6b.

  The contacts 6a and 6b of the header 2 are supported by protruding from the left end of the terminal portion 61 and the terminal portion 63 soldered to the printed wiring board P2 with the length direction set to the left-right direction. A supported portion 64 that is press-fitted and held in the holding grooves 71 a and 71 b of the member 7, and a connecting portion 65 that extends leftward from the upper end of the supported portion 64 and has the left end connected to the upper end of the supported portion 61. . On the front end surface of the supported portion 64, there are protruding biting protrusions 64a that bite into the inner surfaces of the holding grooves 71a and 71b, respectively. Furthermore, a plurality of storage grooves 72a that are open to the left are provided on the lower surface of the protrusion 7b of the support member 7 so as to communicate with the holding groove 71a on the left surface of the main body 7a. A plurality of storage grooves 72b communicating with the holding groove 71b on the right surface of the main body portion 7a and opened on both the left and right sides are provided, and the right ends of the connecting portions 65 of the contacts 6a and 6b are respectively connected to the storage grooves 72a, 72b. Thereby, it is difficult for the connecting portions 65 to come into contact with each other between the contacts 6a and 6b arranged in front and rear.

  Here, in the contacts 6 a and 6 b of the header 2, the held portion 61 is press-fitted into the holding groove 51 a on the right side of the connection portion 50 and the supported portion 64 is pressed into the holding groove 71 a on the left side of the support member 7. The first contact 6 a shown in FIG. 6A and the held portion 61 are press-fitted into the holding groove 51 b on the left side of the connection portion 50, and the supported portion 64 is press-fitted into the holding groove 71 b on the right side of the support member 7. There is a second contact 6b shown in FIG. The connecting portion 65 of the first contact 6a is located below the connecting portion 65 of the second contact 6b. Thus, by providing the first contact 6a and the second contact 6b that overlap each other in the thickness direction of the printed wiring boards P1 and P2, only one of the first contact 6a and the second contact 6b is provided. The total number of contacts 6a and 6b that can be provided per front and rear dimensions is increased compared to the case where the

  Further, a through hole 73 is vertically formed in the main body portion 7a of the support member 7, and the lower end of the left surface of the main body portion 7a is opened in the left-right direction and downward to communicate with the through hole 73. A terminal insertion recess 74 through which the terminal part 63 of the contact 6a is inserted is provided. The terminal portion 63 of the first contact 6a is exposed from the through hole 73 when viewed from above.

  Further, each contact 6a, 6b is provided with a spring portion 65a that can be elastically deformed so as to bulge upward in a U-shape and change the distance between the left and right ends at the central portion in the left-right direction at each connecting portion 65. ing. That is, the displacement of the printed wiring boards P1 and P2 and the support members 7 of the socket 1 and the header 2 in the left-right direction is absorbed by the elastic deformation of the spring portion 65a. With this configuration, the contacts 4, 6a, 6a, 6b, and 6b are compared with the case where the above-described displacement is absorbed by the elastic deformation of the contact portions 42, 62 of the contacts 4, 6a, 6b without providing the spring portion 65a as shown in FIGS. Although the shape of 6b is simple, a larger positional shift can be absorbed.

  A spacer 8 is provided to ensure insulation between the connecting portions 65 of the contacts 6a and 6b. As shown in FIG. 10, the spacer 8 is opened on one side in the vertical direction and on both the left and right sides, and the main body 81 is provided with insertion grooves 81a and 81b through which the connecting portions 65 of the contacts 6a and 6b are inserted. And leg portions 82 projecting downward from both front and rear end portions of the main body portion 81 and having their lower ends in contact with the printed wiring board P2. Here, the cross-sectional shape of the lower insertion groove 81a is substantially the same as the cross-sectional shape of the connection portion 65 of the first contact 6a, and the connection portion 65 of the first contact 6a is press-fitted and held in the insertion groove 81a. ing. Further, the cross-sectional shape of the upper insertion groove 81b is larger than the cross-sectional shape of the connection portion 65 of the second contact 6b, and the connection portion 65 of the second contact 6b is displaceable to the left and right with respect to the spacer 8 in the insertion groove 81b. It is loosely inserted to become. That is, the lower insertion groove 81a is a press-fit groove in the claims, and the upper insertion groove 81b is a loose insertion groove in the claims. According to this configuration, the spacer 65 prevents the contact between the connection portion 65 of each contact 6a, 6b of the header 2 and the printed wiring board P2, but the connection portion 65 of the second contact 6b with respect to the spacer 8 is prevented. It can be displaced vertically and horizontally without being constrained. 13 and 14, the spacer 8 has a Japanese character shape in which two through-holes are arranged in the front-rear direction and penetrated to the left and right. An insertion groove 81 a is provided on the upper surface, and the lower surface is a printed wiring board. A first member 8a fixed to P2 and a second member that abuts the upper surface of the first member 8a with an insertion groove 81b provided on the upper surface and sandwiching the connecting portion 65 of the first contact 6a therebetween. 8b.

  Here, in the housing 5, the holding grooves 51a and 51b into which the contacts 6a and 6b are press-fitted are opened upward. In the support member 7, the holding groove 71a into which the first contact 6a is press-fitted is opened downward, and the holding groove 71b into which the second contact 6b is press-fitted is opened upward. Thus, when the header 2 is manufactured, as shown in FIG. 12, the first contact 6a is first assembled to the housing 5 as shown by the arrow A1, and then the support member 7 is shown as shown by the arrow A2. And the spacer 8 are assembled to the first contact 6a from above, and finally the second contact 6b is assembled to the housing 5 and the support member 7 from above as indicated by an arrow A3. The housing 5, the contacts 6 a and 6 b, the support member 7, and the spacer 8 can be easily assembled so as to overlap each other.

  According to the above configuration, even after the printed wiring board P1 on which the socket 1 is mounted and the printed wiring board P2 on which the header 2 is mounted are each fixed to a case (not shown), for example, to the socket 1 The connection of the header 2, that is, the insertion of the connection portion 50 into the connection recess 30 can be easily performed by elastically deforming the connecting portion 65 of the contacts 6 a and 6 b in the header 2 and displacing the housing 5 up and down. Further, when the header 2 is connected to the socket 1, the displacement of the printed wiring boards P <b> 1 and P <b> 2, the support member 7 of the header 2 and the socket 1 is absorbed by the elastic deformation of the connecting portion 65. In particular, the positional deviation of the printed wiring boards P1 and P2 and the support members 7 of the socket 1 and the header 2 in the left-right direction is absorbed by the elastic deformation of the spring portion 65a of the connecting portion 65 as described above.

  In contrast to this embodiment, the support member 7 and the spacer 8 may be provided in the socket 1, and the supported portion 64 and the connecting portion 65 may be provided in the contact 4 of the socket 1 instead of the contacts 6 a and 6 b of the header 2. Good. In this case, the structure in the vicinity of the housings 3 and 5 is switched up and down, and the housing 3 of the socket 1 having the connection recess 30 opened on the lower surface is connected so as to be covered from the upper side of the connection portion 50 of the header 2. Further, in the housing 3 of the socket 1, the connection recess 30 may have a through-hole shape opened on both upper and lower sides.

It is sectional drawing which shows embodiment of this invention. It is a perspective view which shows the same as the above. It is sectional drawing which shows the state which decomposed | disassembled the socket same as the above. It is sectional drawing which shows a socket same as the above. It is sectional drawing which shows a header same as the above. (A) (b) is a perspective view which shows the contact of a header same as the above, respectively (a) shows a 1st contact, (b) shows a 2nd contact. It is a perspective view which shows the housing of a header same as the above. It is a perspective view which shows a supporting member same as the above. It is a right view which shows the same as the above. It is a perspective view which shows a spacer same as the above. It is sectional drawing which shows the principal part same as the above. It is sectional drawing which shows the state which decomposed | disassembled the header same as the above. It is a perspective view which shows the comparative example same as the above. It is sectional drawing which shows another comparative example same as the above. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Socket 2 Header 3 Housing 4 Contact 5 Housing 6a 1st contact 6b 2nd contact 7 Support member 8 Spacer 30 Connection recessed part 41 Held part 42 Contact part 43 Terminal part 50 Connection part 61 Held part 62 Contact part 63 Terminal Part 64 Supported part 65 Connection part 65a Spring part P1, P2 Printed wiring board

Claims (5)

Each of the printed wiring boards arranged side by side in the direction intersecting the thickness direction is composed of a header and a socket, and the printed wiring board on which the header is mounted and the printed wiring board on which the socket is mounted are electrically connected. A connector to be connected
The socket is made of an insulating material and has a housing having a connection recess that is open on at least one side in the thickness direction of the printed wiring board. The socket is made of a conductive material and is held by the housing so that a part of the connection recess is exposed. A plurality of contacts electrically connected to the printed wiring board;
The header is made of an insulating material and at least a part of the housing is inserted into the connection recess, and the header is made of a conductive material and is held in the housing and electrically connected to the printed wiring board, and the housing is inserted into the connection recess. A plurality of contacts in contact with the socket contacts;
One of the socket and the header includes a support member that is made of an insulating material and is fixed to the printed wiring board and supports the contact of the socket or the header.
One of the socket and the header is provided with a support member, and each contact is made of a conductive material having elasticity, and is electrically connected to the printed wiring board, and connected to the terminal portion and supported by the support member. A supported portion to be held, a held portion to be held by the housing, and provided between the supported portion and the held portion and extended in a direction crossing the thickness direction of the printed wiring board. It possesses at least the socket of the header housing of the insertion depth by the printed wiring board in the thickness direction to be elastically deformable so as to displace a connecting portion for connecting the recess with respect to the supported portion,
One of the socket and the header provided with the support member, the contact includes a first contact and a second contact where the supported parts are located on opposite sides of the support member,
In the first contact and the second contact, the connecting portion is extended in the same direction with respect to the supported portion and in a direction in which the supported portions are aligned, and the supported portion is extended with respect to the supporting member. The connecting portion of the first contact located on the connected side is located closer to the printed wiring board than the connecting portion of the second contact, and the held portion of the first contact is the covered portion of the second contact. Located on the side closer to the support member than the holding part,
A spacer made of an insulating material and interposed between the connecting portion of the first contact and the connecting portion of the second contact;
The spacer is provided with a press-fitting groove in which the connecting portion of the first contact is press-fitted and fixed on the surface facing the printed wiring board, and the connecting portion of the second contact is provided on the surface opposite to the surface on which the press-fitting groove is provided. A connector characterized in that a loose insertion groove is provided . The spacer has a leg portion that contacts the printed wiring board, and is supported by the leg portion with a gap between the printed wiring board and a press contact groove and a loose insertion groove. The connector according to claim 1, further comprising a main body portion interposed between the connecting portion of the second contact . One of the socket and the header is provided with a supporting member, and is bent so as to bulge in a direction intersecting with the extending direction of the connecting portion with respect to the supported portion, and the distance between the supported portion and the held portion is changed. The connector according to claim 1 , wherein a spring portion that can be elastically deformed is provided at each contact connecting portion . The supporting member has a protruding portion protruding in the extending direction of the connecting portion with respect to the supported portion, and at least one of the surfaces of the protruding portion directed in the thickness direction of the substrate is connected to one contact each. The connector according to claim 1, wherein a plurality of storage grooves in which a part of the part is stored are provided . One of the socket and the header is provided with a support member, and the support member is provided with a holding groove into which the contact is press-fitted, and the housing is provided with a holding groove into which the contact is press-fitted, and each holding of the support member and the housing is performed. The connector according to any one of claims 1 to 4, wherein the groove is opened to at least one side in the thickness direction of the printed wiring board .

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