JP4548442B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  2. Description of the Related Art Conventionally, for example, a connector that electrically connects two opposing printed circuit boards is known (see, for example, Patent Document 1).

  This type of connector includes a socket 40 and a header 30 as shown in FIG. The socket 40 is a resin molded product having a substantially rectangular shape, and a frame-shaped groove portion 42 that is recessed in a concave shape from the peripheral surface is formed inside the peripheral region. Further, the header 30 is a resin molded product having a substantially rectangular shape, and is set to a size that is slightly smaller than the socket 40. As for the header 30, the inner area | region inside the peripheral area is recessed in the concave shape, and the convex-shaped peripheral wall part 32 is formed in the peripheral area. The pair of long sides of the socket 40 is provided with a plurality of contacts 41 arranged at equal pitches, and the pair of long sides of the header 30 is provided with a plurality of posts 31 arranged at equal pitches. It has been.

  This connector is fitted together by inserting the peripheral wall portion 32 of the header 30 into the groove portion 42 of the socket 40. At this time, the contact 41 on the socket 40 side and the post 31 on the header 30 side contact each other. A separate circuit board (not shown) such as a printed wiring board is connected to the contact 41 of the socket 40 and the post 31 of the header 30 by soldering, thereby electrically connecting the pair of printed wiring boards. Is done.

The post 31 is configured to be brought into contact with the contact 41 via the fitting portion of the header 30 with respect to the groove portion 42 of the socket 40, that is, the peripheral wall portion 32 in the fitting state of the socket 40 and the header 30. The post 31 is formed by bending a band-shaped metal material, and is bent along the outer peripheral shape of the peripheral wall portion 32 as shown in FIG.
JP-A-2005-19144

  However, when forming posts on the header body, if individual posts are handled separately, parts processing and assembly become complicated, and there is a possibility that mass productivity may be reduced.

  In addition, when forming a post by bending a metal material, it is necessary to set the outer peripheral shape of the fitting portion within a range in which the metal material can be bent, and the degree of freedom in shape is limited. There's a problem. In addition, since it is necessary to consider the thickness of the metal material, there is an inconvenience that the formability of the fitting portion deteriorates if the connector is downsized.

  This invention is made | formed in view of such a situation, The objective is to provide the connector which aims at the improvement of mass productivity.

  Another object of the present invention is to provide a connector that can be reduced in size while improving the degree of freedom in shape.

To solve such problems, the present onset Ming, a socket having a socket body having a plurality of contacts and said plurality of contacts are connected to the plurality of terminals of the first circuit board is arranged, the second The header body includes a plurality of posts respectively connected to a plurality of terminals of the circuit board and a header having a header body on which the plurality of posts are juxtaposed, and a groove portion provided inside a peripheral wall portion of the socket body. In the connector in which the plurality of contacts and the plurality of posts are respectively in contact with each other, each of the posts extends outward from the header body and is connected to a terminal of the circuit board. And a contact portion that is formed along the wall surface of the fitting portion of the header main body that fits into the groove portion and that contacts the contact on the socket side. In the header, the header body is formed of a resin molded product, and each connection portion of the post is formed in a comb shape on the long side of the hoop material when the header body is molded. A plurality of terminal pieces are inserted into a mold and molded together with the header body , and the header is formed by plating each contact portion of the post, and the plating process is performed. Each of the contact portions of the post thus formed is formed such that its end portion overlaps the surface of each connection portion of the post .

  According to the present invention, since the connection portion corresponding to each post can be processed and assembled in a hoop state, the complexity in the manufacturing process is reduced and the mass productivity can be improved.

  Further, according to the present invention, by forming the contact portion by plating, the fitting portion can be set to a shape that cannot be handled by bending, and the thickness of the contact portion can be reduced. Therefore, further miniaturization can be realized while ensuring the formability of the fitting portion. Thereby, size reduction of the whole connector can be achieved.

(Implementation form)
Figure 1 is a cross-sectional view schematically showing a connector according to Kazumi facilities embodiment of the present invention. The connector according to this embodiment includes a header 10 and a socket 20. The header 10 is mainly composed of a plurality of posts 11 and a header body 12 in which the plurality of posts 11 are arranged side by side. The socket 20 is provided with a plurality of contacts 21 and a plurality of contacts 21. The socket main body 22 is mainly configured. Each contact 21 of the socket 20 is connected to a plurality of terminals of a first circuit board (not shown) such as a printed wiring board by soldering, and each post 11 of the header 10 is connected to the printed wiring board. Each is connected to a plurality of terminals of a second circuit board (not shown) such as a plate by soldering. This connector electrically connects between a pair of circuit boards by connecting the socket body 22 and the header body 12 and bringing the plurality of contacts 21 and the plurality of posts 11 into contact with each other.

  FIG. 2 is a cross-sectional view schematically showing the header 10. The header body 12 of the header 10 is a resin molded product formed in an elongated, substantially rectangular shape, and its outer shape is set to a size that is slightly smaller than the socket body 22. The header 10 has a substantially rectangular recess 13 whose inner region located inside the peripheral region is recessed in a concave shape, and a substantially frame-shaped peripheral wall portion 14 is formed around the recess 13. The peripheral wall portion 14 corresponds in shape to a groove portion 23 (see FIG. 3 described later) of the socket main body 22, and functions as a fitting portion that engages with the groove portion 23 in the socket main body 22.

  The header body 12 is provided with a plurality of posts 11 along the longitudinal direction on both sides of the center line in the longitudinal direction (perpendicular to the paper surface in FIG. 2). Each post 11 is mainly composed of a connection portion 11a that is connected to a terminal on the circuit board side, and a contact portion 11b that mainly contacts a contact 21 on the socket 20 side. The connection portion 11a and the contact portion 11b are mutually connected. It is connected.

  The connecting portion 11a is formed by bending a strip-shaped metal piece into a substantially L shape. Specifically, one end of the connection portion 11 a extends outward from the header body 12 along the bottom rear surface of the recess 13 in the header body 12. One end of the connecting portion 11a functions as a connecting end connected to the wiring pattern (terminal) of the printed wiring board (second circuit board). On the other hand, the other end of the connecting portion 11 a extends through the bottom of the recess 13 of the header body 12 and then extends to the middle position along the inner wall surface of the peripheral wall portion 14.

  The contact portion 11b is formed along the wall surface of the peripheral wall portion 14 using a plating process, and is connected to the outside of the peripheral wall portion 14 from the connection portion 11a on the inner wall surface of the peripheral wall portion 14 via the top portion of the peripheral wall portion 14. It extends to the middle position of the wall.

  FIG. 3 is a cross-sectional view schematically showing the socket 20. The socket body 22 of the socket 20 is a resin molded product formed in an elongated, substantially rectangular shape. The socket body 22 has a substantially frame-shaped groove 23 that is recessed in an inner peripheral region located inside the peripheral region, and the peripheral wall 24 and the central convex portion 25 are separated by the groove 23. ing. In the socket body 22, a plurality of connector grooves are arranged in parallel along the longitudinal direction on both sides with respect to the center line in the longitudinal direction (perpendicular to the paper surface in FIG. 3). Each connector groove is provided with a contact 21.

  Each contact 21 provided in the connector groove of the socket 20 is formed by bending a band-shaped metal material. One end portion side of the contact 21 extends in the inner (center convex portion 25 side) direction along the bottom portion of the socket body 22, and after being folded back, extends in the outer direction, and the tip portion thereof is It is bent into a substantially L shape. The bent portion on the distal end side is set at a position where it slightly enters the groove 23. The other end side of the contact 21 undulates in a round shape, then extends outward along the bottom of the socket body 22, passes through the peripheral wall 24, and extends outward from the outer wall surface. Exist. This extending part functions as a connection end connected to the wiring pattern (terminal) of the printed wiring board (first circuit board).

  Referring again to FIG. 1, the connector is inserted into the groove portion 23 of the socket body 22 by inserting the header body 12 (specifically, the peripheral wall portion 14 of the header body 12) into the socket body 22 (socket 20). The header body 12 (header 30) is fitted. At this time, the individual contacts 21 on the socket 20 side and the individual posts 11 on the header 30 side (specifically, the contact portions 11b of the post 11) are in contact with each other, so that the pair of printed wiring boards is electrically connected. Connected to.

  FIG. 4 is an explanatory diagram showing a part of the manufacturing process of the header 10. The header 10 constituting the connector is manufactured through the following steps. First, a pair of hoop materials 17 are prepared. A plurality of terminal pieces corresponding to the connecting portions 11 a of the posts 11 are formed in comb-like shapes on the individual hoop members 17 on the long side by pressing. Further, each terminal piece is bent so that the tip end side is L-shaped. The pair of hoop materials 17 are laid out to face each other so that the terminal pieces face each other.

  Next, resin molding is performed to form the header body 12. When the header body 12 is molded, the header body 12 is formed in a state where a plurality of terminal pieces formed in a comb-tooth shape on the long sides of the pair of hoop members 17 are inserted into the molds. As a result, the plurality of terminal pieces in the pair of hoop materials 17 are formed integrally with the header body 12. Thereafter, the pair of hoop materials 17 are cut in a band-like portion by press working, whereby the connection portion 11 a of the post 11 is formed in the header body 12.

  And corresponding to each post | mailbox 11, it plating-processes along the wall surface of the surrounding wall part 14, and forms the contact part 11b, respectively. Thereby, as shown in FIG. 2, the header 10 concerning this embodiment is manufactured.

  Thus, in this embodiment, each of the posts 11 in the header 10 includes the connection portion 11a and the contact portion 11b, and the connection portion 11a and the contact portion 11b are connected to each other at the ends. This connection part 11a comprises the site | part extended outside from the header main body 12 and connected with the terminal of a circuit board. On the other hand, the contact portion 11b is formed along the wall surface of the fitting portion (in this embodiment, the peripheral wall portion 14) of the header body 12 that fits into the groove portion 23 of the socket body 22, and the contact 21 on the socket 20 side. The part which contacts with. Here, in the header 10, the header body 12 is made of a resin molded product, and each connection portion 11 a of the post 11 is formed in a comb-like shape on the long side of the hoop material 17 when the header body 12 is molded. The plurality of terminal pieces thus formed are inserted into a mold and molded together with the header body 12.

  According to such a configuration, since the parts 11a corresponding to the individual posts 11 constituting the header 10 can be processed and assembled in a hoop state, complexity in the manufacturing process is reduced, and mass productivity is improved. Can do.

  In the present embodiment, the header 10 is formed by subjecting each contact portion 11b of the post 11 to plating.

  In the conventional method of forming the entire post (connecting portion and contact portion) by bending a metal material, it is necessary to set the shape of the fitting portion within a range in which the metal material can be bent. . However, by forming the contact portion 11b by plating, the fitting portion can be set to a shape that cannot be handled by bending. Thereby, the improvement of the shape tolerance of the header 10 and the socket 20 can be aimed at.

  In addition, when bending a metal material, it is necessary to set a large curvature in the fitting portion in a position corresponding to the bent portion of the metal material. This can be dealt with. For this reason, it becomes possible to set the length of a fitting part large, and even if it is a case where a fitting part is set to the same length, the height reduction of the whole connector can be achieved.

  Furthermore, compared to the case where the contact portion is formed of a metal material, the thickness of the contact portion can be reduced when the contact portion is formed by plating. Can be realized. Thereby, size reduction of the whole connector can be achieved.

( Reference example )
Figure 5 is a cross-sectional view schematically showing a connector according to a reference example of the present invention. The connector according to this reference example includes a header 10 </ b> A and a socket 20. The header 10A is mainly composed of a plurality of posts 11A and a header body 12 in which the plurality of posts 11A are arranged in parallel, and the socket 20 is provided with a plurality of contacts 21 and a plurality of contacts 21. The socket main body 22 is mainly configured. Each contact 21 of the socket 20 is connected to a plurality of terminals of a first circuit board (not shown) such as a printed wiring board by soldering, and each post 11A of the header 10A is printed wiring Each is connected to a plurality of terminals of a second circuit board (not shown) such as a plate by soldering. This connector electrically connects a pair of circuit boards by connecting the socket body 22 and the header body 12 and bringing the plurality of contacts 21 and the plurality of posts 11A into contact with each other. In the present reference example, the configuration of the socket 20 is similar to that of the implementation form, with reference to the reference numerals, and detailed description thereof will be omitted, hereinafter, be described mainly header 10A.

  FIG. 6 is a cross-sectional view schematically showing the header 10A. The header body 12 of the header 10 </ b> A is a resin molded product formed in an elongated, substantially rectangular shape, and its outer shape is set to a size that is slightly smaller than the socket body 22. The header 10 </ b> A has a substantially rectangular recess 13 whose inner region located inside the peripheral region is recessed in a concave shape, and a substantially frame-shaped peripheral wall portion 14 is formed around the recess 13. The peripheral wall portion 14 corresponds in shape to the groove portion 23 of the socket main body 22, and functions as a fitting portion that engages with the groove portion 23 in the socket main body 22.

  In the header body 12, a plurality of posts 11A are arranged in parallel along the longitudinal direction on both sides of the center line in the longitudinal direction (perpendicular to the paper surface in FIG. 6). Each post 11 </ b> A is formed using a plating process. From the inner wall surface of the peripheral wall portion 14 to the top of the peripheral wall portion 14, the entire outer wall surface of the peripheral wall portion 14 and the bottom rear surface of the recess 13. It is formed up to a part of the side. When the header 10 </ b> A is fitted into the socket 20, the bottom rear surface side of the recess 13 becomes a surface exposed to the outside (external exposed surface).

In the post 11A according to this reference example , the region formed in the peripheral wall portion 14 functions as a contact region that contacts the contact 21 on the socket 20 side when the header 10 is fitted to the socket 20, The region formed on the bottom surface rear surface side of the recess 13 functions as a connection region connected to the terminal of the circuit board.

As described above, according to the present reference example , each of the posts 11A on the header 10A side has the wall surface of the fitting portion (the peripheral wall portion 14 in this reference example ) of the header main body 12 to be fitted with the groove portion 23 of the socket main body 22, And it forms by performing a plating process along the externally exposed surface (in this reference example , the bottom back surface side of the recessed part 13 ) of the header main body 12. FIG.

  In the conventional method of forming the entire post by bending a metal material, it is necessary to set the shape of the fitting portion within a range in which the metal material can be bent, but the post 11A is plated. Therefore, it is possible to set a shape that cannot be handled by bending. Thereby, the improvement of the shape tolerance of header 10A and socket 20 can be aimed at.

  In addition, when bending a metal material, it is necessary to set a large curvature in the fitting portion in a position corresponding to the bent portion of the metal material. This can be dealt with. For this reason, it becomes possible to set the length of a fitting part large, and even if it is a case where a fitting part is set to the same length, the height reduction of the whole connector can be achieved.

  Furthermore, compared to the case where the post is formed of a metal material, when the post is formed by plating, the thickness of the post 11A can be reduced, so that the formability of the fitting portion can be ensured and the size can be further reduced. Can be realized. Thereby, size reduction of the whole connector can be achieved.

Sectional drawing which shows typically the connector concerning one Embodiment of this invention Sectional drawing which shows typically the header 10 concerning one Embodiment of this invention . Sectional drawing which shows typically the socket 20 concerning one Embodiment of this invention . Explanatory drawing which shows a part of manufacturing process of the header 10 concerning one Embodiment of this invention . Sectional drawing which shows the connector concerning a reference example typically Sectional drawing which shows typically header 10A concerning a reference example Sectional drawing which shows the connector as a conventional example typically

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Header 10A Header 11 Post 11A Post 11a Connection part 11b Contact part 12 Header main body 13 Recess 14 Peripheral wall part 17 Hoop material 20 Socket 21 Contact 22 Socket main body 23 Groove part 24 Peripheral wall part 25 Central convex part 30 Header 31 Post 32 Peripheral wall part 40 Socket 41 Contact 42 Groove

Claims (1)

A socket having a plurality of contacts respectively connected to a plurality of terminals of the first circuit board and a socket body in which the plurality of contacts are arranged in parallel, and a plurality of terminals respectively connected to the plurality of terminals of the second circuit board And a header having a header body in which the plurality of posts are juxtaposed, and by fitting the header body into a groove provided on the inner side of the peripheral wall portion of the socket body, the plurality of contacts and the In connectors where each of multiple posts contacts
Each of the posts is formed along a wall surface of a connection portion that extends outward from the header body and connects to a terminal of the circuit board, and a fitting portion of the header body that fits into the groove portion. It consists of a contact part that contacts the socket side contact,
The header includes a plurality of terminals in which the header body is formed of a resin molded product, and each connection portion of the post is formed in a comb-tooth shape on the long side of the hoop material when the header body is molded. is formed by inserting a piece into a mold for molding with said header body,
The header is formed by plating each contact portion of the post,
The respective contact portions of the post which is formed by the plating process is performed, the connector end thereof, characterized that you have been formed so as to overlap on the surface of each of the connecting portions of the post.

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