JP4187017B2 - connector - Google Patents

Description

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

  Conventionally, as shown in FIG. 5, sockets 8 are respectively mounted on one of two printed wiring boards P1 and P2 arranged side by side in the direction crossing the thickness direction with the mounting surfaces facing in the same direction. And a header 9, a connector is provided that electrically connects the printed wiring board P <b> 1 on which the socket 8 is mounted and the printed wiring board P <b> 2 on which the header 9 is mounted (for example, see Patent Document 1).

  The socket 8 has a housing 81 having a connection recess 81a that opens in a direction intersecting the thickness direction of the printed wiring boards P1 and P2, and is held by the housing 81 so that a part thereof is exposed in the connection recess 81a. And a plurality of contacts 82 electrically connected to the printed wiring board P1.

  The header 9 contacts the contact 82 of the socket 8 when the housing 91 is inserted into the connection recess and is electrically connected to the printed wiring board P2 held by the housing 91 and inserted into the connection recess 81a. And a plurality of conductive contacts 92.

When the header 9 and the socket 8 are connected to each other by inserting the housing 91 of the header 9 into the connection recess 81a of the housing 81 of the socket 8, the contacts 82 and 92 of the socket 8 and the header 9 are brought into contact with each other. The printed wiring boards P1 and P2 are electrically connected via the contacts 82 and 92.
Japanese Patent Laid-Open No. 2000-100501

  However, in the conventional example, when the socket 8 and the header 9 fixed to the printed wiring boards P1 and P2 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 socket 8 and the header 9 cannot be connected to each other.

  The present invention has been made in view of the above reasons, and an object of the present invention is to provide a connector that can be easily connected even when the printed wiring boards connected to each other are fixed.

According to a first aspect of the present invention, there is provided a receptacle mounted on each of two printed wiring boards arranged side by side in a direction crossing the thickness direction, and a connection electrically and mechanically connected to each receptacle. Each of which is a connector for electrically connecting printed wiring boards each having a receptacle mounted thereon, each receptacle being made of an insulating material and fixed on the printed wiring board, and a conductive material. The printed wiring boards are arranged on both sides of the housing with respect to the direction in which the printed wiring boards are arranged side by side in the direction intersecting the direction in which the printed wiring boards are arranged and the thickness direction of the printed wiring boards, and are electrically connected to the printed wiring boards. A plurality of contacts, each of which is made of an insulating material, and is a housing for the receptacle. And two holders having a structure that fits in the thickness direction of the printed wiring board, and contacts of the receptacle when the holder is fitted to the receptacle housing and is held by the holder and made of an elastic conductive material. A first contact and a second contact that are in contact with each other, wherein the first contact and the second contact include a connecting portion extended in a direction in which the printed wiring boards are arranged, and both ends of the connecting portion. Each of the terminal portions of the first contact of the coupling body is connected to each of the receptacles in the state where the coupling body is connected to each receptacle. The contact on the side close to the other receptacle is conductively connected, and the terminal portion of the second contact is not connected to the receptacle. Contact conduction on the side of the contact away from the other of the receptacle, connecting portions of the first contacts, be disposed at a position closer to the printed wiring board than the connecting portion of the second contact, the coupling body is an insulating material And a spacer interposed between the connecting portion of the first contact and the connecting portion of the second contact, and one connecting portion between the first contact and the second contact is press-fitted and fixed to the spacer. And a loose insertion groove into which the other connecting portion of the first contact and the second contact is loosely inserted is provided on the surface opposite to the surface on which the press-fitting groove is provided. To do.

According to the present invention, even when each printed wiring board on which the receptacle is mounted is fixed, while absorbing the positional error of the printed wiring board by elastic deformation of the contact connecting portion in the connecting body, By connecting the connector to each receptacle from the thickness direction of the printed wiring board, the printed wiring boards can be easily connected. Further, by providing the first contact and the second contact, which are different from each other in the position of the terminal portion and the position of the connecting portion, as compared with the case where all the contacts are held on the same side of the holder, The pitch can be increased for the number. Further, the insulation between the connecting portions of the first contact and the second contact is ensured by the spacer. In addition, while the spacer is connected to one of the contacts to ensure insulation between the contact connecting portions, the connecting portion of the other contact is not restrained by the spacer, so that the width of elastic deformation is ensured.

According to a second aspect of the invention, in the invention of claim 1, and a connecting portion of the first contact and the connecting portion of the second contact, respectively, so as to bulge to one side in the thickness direction of the printed circuit board It is characterized by having a spring part that is bent in the shape of a spring and can be elastically deformed so as to change the distance between the terminal parts.

  According to this invention, the positional deviation of the printed wiring board and each receptacle in the direction in which the printed wiring boards are arranged is absorbed by the elastic deformation of the spring portion.

The invention according to claim 3, in the invention of claim 1 or 2, in the coupling body, the holder, a plurality of first holding grooves at least a part of the terminal portion of the first contact, respectively are pressed, A plurality of second holding grooves into which at least a part of the terminal portion of the second contact is press-fitted, and the first holding groove is at least one direction in which the holder is attached to and detached from the receptacle. The holder is opened in a direction common to each other, and the second holding groove is opened in a direction for removing the holder from the receptacle.

  According to this invention, when assembling the coupling body, the holder and each contact can be assembled so as to overlap in the thickness direction of the printed wiring board.

According to the present invention, even when the respective printed circuit board having a receptacle, each mounting is fixed respectively, while absorbing the error of the position of the printed wiring board by the elastic deformation of the connecting portion of the contact in the coupling body, By connecting the connector to each receptacle from the thickness direction of the printed wiring board, the printed wiring boards can be easily connected. Further, by providing the first contact and the second contact, which are different from each other in the position of the terminal portion and the position of the connecting portion, as compared with the case where all the contacts are held on the same side of the holder, The pitch can be increased for the number. Further, the insulation between the connecting portions of the first contact and the second contact is ensured by the spacer. In addition, while the spacer is connected to one of the contacts to ensure insulation between the contact connecting portions, the connecting portion of the other contact is not restrained by the spacer, so that the width of elastic deformation is ensured.

  As shown in FIGS. 1 and 2, the present embodiment includes two receptacles 1 mounted on different printed wiring boards P, and a connector 2 electrically and mechanically connected to each receptacle 1. Is provided. Hereinafter, the top, bottom, left, and right are based on FIG. 1B, and the front-back direction in FIG. 1B (the downward direction in FIG. 1A) is referred to as the front-rear direction. That is, the thickness direction of the printed wiring board P is referred to as the up-down direction, and the direction in which the printed wiring boards P are arranged is referred to as the left-right direction.

  The receptacle 1 is a rectangular parallelepiped housing 3 made of an insulating material such as a synthetic resin, for example, and a part of which is formed by punching or bending a metal plate, for example. A plurality of contacts (30 in the figure) are arranged on the left and right sides of the connection recess 30 so as to be exposed in the connection recess 30, and the contacts 4 are held side by side.

  In the housing 3 of the receptacle 1, on the left and right sides of the connection recess 30, a plurality of holding grooves 31 for holding the contacts 4 are provided across the inside and outside of the connection recess 30 in a one-to-one correspondence with the contacts 4. ing. The contact 4 of the receptacle 1 has an inverted U-shape, a held portion 41 that is press-fitted and held in the holding groove 31, and a protruding portion inward in the left-right direction from the end portion of the held portion 41 that is located inside the connection recess 30. 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 P. In addition, a positioning projection 32 that engages with a positioning hole (not shown) provided in the printed wiring board P projects downward from the lower surface of the housing 3 of the receptacle 1. That is, the positioning projection 32 engages with the positioning hole of the printed wiring board P, whereby the housing 3 is positioned with respect to the printed wiring board P.

  As shown in FIGS. 3 and 4, the coupling body 2 is composed of two holders 5 each having a connection portion 50 made of an insulating material such as a synthetic resin and inserted into the connection recess 30, respectively, and a conductive material. Both ends are provided with a plurality of contacts 6 a and 6 b held by one holder 5.

In the holder 5 of the coupling body 2, holding grooves 51 a and 51 b for holding the contacts 6 a and 6 b are provided on both the left and right sides of the connection portion 50, respectively. The contacts 6a and 6b of the coupling body 2 project from the held portion 61 press-fitted and held in the holding grooves 51a and 51b, and project from the held portion 61 in the left-right direction away from the connecting portion 50 and upward. A contact portion 62 that is elastically deformed so as to bend and displace the tip portion to the left and right with respect to the held portion 61 is provided. That is, the held portion 61 and the contact portion 62 constitute a terminal portion in the claims. 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 away from the connection portion 50, and the contact portion of the contact 4 of the receptacle 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. Furthermore, the front and rear ends of the connection part 50 of the holder 5 are provided with protrusions 52 that protrude to the left and right larger than the contact parts 62 of the contacts 6a and 6b with respect to the connection part 50, respectively. When the part 50 is inserted and removed, the protruding part 52 can be provided. Further, a beam portion 53 is installed between the outer ends of the protruding portion 52 in the left-right direction. The beam portion 53 improves the mechanical strength of the holder 5 and protects the contact portion 62 of the contact 6b. . Further, on the upper surface of the housing 3 of the receptacle 1, the front and rear end portions are each provided with a step 34 for making the upward protruding dimension of the printed wiring board P smaller than the inner side on the outer side in the front and rear direction. Positioning portions 54 protrude downward from the lower surfaces of both end portions, and each positioning portion 54 is positioned outside the step 34, so that displacement of the holder 5 of the connector 2 in the front-rear direction is prevented. ing. In addition, positioning recesses 55 are provided on the lower surfaces of the front and rear end portions of the holder 5, respectively. Positioning projections 35 are provided on the upper surfaces of both front and rear ends of the housing 3 of the receptacle 1, and the positioning projections 35 engage with the positioning recesses 55, respectively, so that the connector 2 to the housing 3 of the receptacle 1. The holder 5 is positioned.

  Here, the contacts 6a and 6b of the coupling body 2 include the first contact 6a in which the held portion 61 is press-fitted into the holding groove 51a on the side close to the other holder 5 in each holder 5, and the held portion 61. Each holder 5 has a second contact 6b press-fitted into the holding groove 51a on the side away from the other holder 5. The connecting portion 63 of the first contact 6a is located below the connecting portion 63 of the second contact 6b. In this way, the contact portions 62 are arranged in the left-right direction, that is, in the direction in which the printed wiring boards P are arranged, and the connecting portions 63 overlap each other in the thickness direction of the printed wiring boards P. By providing, the total number of contacts 6a and 6b that can be provided per front and rear dimensions is increased compared to the case where only one of the first contact 6a and the second contact 6b is provided.

  In addition, each contact 6a, 6b is provided with a spring portion 63a 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 63. ing. That is, the displacement of the printed wiring board P and the receptacle 1 in the left-right direction is absorbed by the elastic deformation of the spring portion 63a. With this configuration, the shape of the contacts 4, 6a, 6b is simplified compared to the case where the displacement is absorbed only by the elastic deformation of the contact portions 42, 62 of the contacts 4, 6a, 6b without providing the spring portion 63a. Can absorb a larger displacement.

  Furthermore, the connecting body 2 is provided with a spacer 7 in order to ensure insulation between the connecting portions 63 of the contacts 6a and 6b. On both the upper and lower surfaces of the spacer 7, insertion grooves 71 a and 71 b are provided which are opened on one side in the vertical direction and on both the left and right sides, and through which the connecting portions 63 of the contacts 6 a and 6 b are inserted. Here, the front and rear dimensions of the lower insertion groove 71a are substantially the same as the front and rear dimensions of the connection part 63 of the first contact 6a, and the connection part 63 of the first contact 6a is press-fitted into the insertion groove 71a. Is retained. The front and rear dimensions of the upper insertion groove 71b are larger than the front and rear dimensions of the connection part 63 of the second contact 6b, and the connection part 63 of the second contact 6b is left and right along the insertion groove 71b with respect to the spacer 7. It is loosely inserted so as to be freely displaceable. That is, the lower insertion groove 71a is a press-fit groove in the claims, and the upper insertion groove 71b is a loose insertion groove in the claims. According to this configuration, while the insulation between the connecting portions 63 of the contacts 6 a and 6 b of the connecting body 2 is ensured by the spacer 7, the connecting portion 63 of the second contact 6 b is not restrained with respect to the spacer 7. In addition, it can be displaced left and right.

  Here, in the holder 5, the holding grooves 51a and 51b into which the contacts 6a and 6b are press-fitted are opened upward. As a result, when the coupling body 2 is manufactured, as shown in FIG. 4, the first contacts 6 a are assembled to the respective holders 5 from the upper side as indicated by the arrow A <b> 1, and then the spacer 7 is attached to the first contact. 6a is assembled from above as shown by arrow A2, and finally the second contact 6b is assembled to each holder 5 and spacer 7 from above as shown by arrow A3. 6a, 6b and the spacer 7 can be easily assembled so as to overlap each other. Note that the holding groove 51 a for holding the first contact 6 a may have a shape opened downward, and the first contact 6 a may be assembled from below the holder 5.

  According to the above configuration, even after each printed wiring board P on which the receptacle 1 is mounted is fixed to, for example, a case (not shown), the connecting body 2 is connected to each receptacle 1 from above. By being able to connect, it is possible to easily connect the connecting body 2 to each receptacle 1, that is, to insert the connection portion 50 of each holder 5 into the connection recess 30 of each receptacle 1.

  Further, when connecting the connecting body 2 to the receptacle 1, the positional deviation of the printed wiring board P and the receptacle 1 is absorbed by the elastic deformation of the connecting portion 63. In particular, the displacement of the printed wiring board P and the receptacle 1 in the left-right direction is absorbed by the elastic deformation of the spring portion 63a of the connecting portion 63 as already described.

  The fitting relationship between the housing 3 of the receptacle 1 and the holder 5 of the coupling body 2 is reversed from that of the present embodiment, the connection recess 30 is provided in the holder 5 of the coupling body 2, and the connection portion 50 is disposed in the housing of the receptacle 1. 3 may be provided. Moreover, the connection recessed part 30 is good also as a through-hole shape opened to the upper and lower sides.

It is a figure which shows embodiment of this invention, (a) is a top view, (b) is sectional drawing, (c) is a right view. It is a perspective view which shows the same as the above. It is a disassembled perspective view which shows a connection body same as the above. It is sectional drawing which shows the state which decomposed | disassembled the connection body same as the above. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Receptacle 2 Connection body 3 Housing 4 Contact 5 Holder 6a 1st contact 6b 2nd contact 7 Spacer 30 Connection recessed part 41 Hold part 42 Contact part 43 Terminal part 50 Connection part 61 Hold part 62 Contact part 63 Connection part 63a Spring part P Printed wiring board

Claims (3)

Each of the two printed wiring boards arranged side by side in a direction crossing the thickness direction, and a connector that is electrically and mechanically connected to each receptacle. Is a connector for electrically connecting printed wiring boards mounted with,
Each receptacle is made of an insulating material and fixed on the printed wiring board. Each receptacle is made of a conductive material, and the printed wiring board is arranged on both sides of the housing with respect to the direction in which the printed wiring boards are arranged. A plurality of contacts that are provided side by side in a direction intersecting the thickness direction and electrically connected to the printed wiring board,
The coupling body is composed of two holders each made of an insulating material and fitted to the receptacle housing in the thickness direction of the printed wiring board, and each holder is made of an elastic conductive material and held by the holder. A first contact and a second contact that are brought into contact with the contact of the receptacle when fitted to the receptacle housing;
In the coupling body, the first contact and the second contact are provided at both ends of the coupling portion, which are extended in the direction in which the printed wiring boards are arranged, respectively, and are held by the holders to be in contact with the contacts of the receptacle. A terminal portion,
In a state in which the coupling body is connected to each receptacle, the terminal portion of the first contact of the coupling body is in contact with the contact on the side close to the other receptacle in the receptacle, and the terminal portion of the second contact is in the receptacle. Contact conduction with the contact on the side away from the other receptacle, the connecting portion of the first contact is disposed closer to the printed wiring board than the connecting portion of the second contact ,
The coupling body includes a spacer made of an insulating material and interposed between the coupling portion of the first contact and the coupling portion of the second contact,
The spacer is provided with a press-fit groove in which one connecting portion between the first contact and the second contact is press-fitted and fixed, and the first contact and the second contact are provided on a surface opposite to the surface provided with the press-fit groove. A connector characterized in that a loose insertion groove into which the other connecting portion with the contact is loosely inserted is provided . The connecting portion of the first contact and the connecting portion of the second contact are each bent so as to bulge to one side in the thickness direction of the printed wiring board so as to change the distance between the terminal portions. The connector according to claim 1 , further comprising an elastically deformable spring portion . In the coupling body, the holder is press-fitted with a plurality of first holding grooves into which at least a part of the terminal part of the first contact is press-fitted, and with a terminal part of the second contact, respectively. A plurality of second holding grooves, wherein the first holding groove is at least one direction in which the holder is attached to and detached from the receptacle, and is opened in a direction common to each holder. The second holding groove is 3. The connector according to claim 1 , wherein the connector is opened in a direction in which the holder is removed from the receptacle .

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