JP6372208B2 - Board connector - Google Patents

Description

  The present invention relates to a board connecting connector having a plurality of contacts.

  In an electronic device such as an IC tester, for example, as shown in Patent Document 1, a test board composed of a plurality of printed circuit boards (referred to as a socket board and a base board in Patent Document 1), and A semiconductor element as an object to be inspected and an inspection apparatus main body are electrically connected via a board connecting connector. Such a connector for board connection is provided on a pin card of the inspection apparatus main body, and includes a plurality of pogo pins pressed against the electrodes of the base board. The pogo pin as the contact includes, for example, a pair of pins projecting at both ends of a metal cylindrical body and an elastic member that urges the pair of pins in a direction away from each other as disclosed in Patent Document 2. It consists of

  In such an electronic device, it is desired that the transmission characteristic of the test signal in the high frequency band in the transmission path between the semiconductor element and the inspection apparatus main body is good. Therefore, there are cases where measures such as matching of characteristic impedance in the transmission path and suppression of crosstalk are required.

JP-A-10-227830 JP 2007-33215 A

  In the board connector as described above, it is desired to suppress crosstalk so as to improve the transmission characteristics of test signals in the high frequency band in the transmission line without changing the distance between pogo pins as contacts. In this case, there is a possibility that a significant design change of the board connecting connector is required.

  In consideration of the above problems, the present invention is a board connecting connector having a plurality of contacts, and without changing the distance between the plurality of contacts, the test signal of the high frequency band in the transmission line It is an object of the present invention to provide a board connecting connector capable of improving transmission characteristics.

In order to achieve the above-described object, a board connecting connector according to the present invention includes a first connector portion having a plurality of contact pins in contact with an electrode group of a removable first board, and a first board. arranged on the second substrate to be connected, and a second connector portion that will be detachable with respect to the first connector portion, and a pair of movable pieces that are respectively detachably connected to a plurality of contact pins, A plurality of signal contact terminals each having one fixed terminal portion fixed to the second substrate, and a connecting portion for connecting the coupling portion and the fixed terminal portion of the pair of movable pieces , and a plurality of contact pins A pair of movable pieces detachably connected to each other, two fixed terminal portions fixed to the second substrate, and a connecting portion for connecting the coupling portion and the fixed terminal portion of the pair of movable pieces, respectively. contactors for a plurality of ground with Comprising a second connector portion having a terminal, a single fixed terminal portions of the signal contact terminals, two fixing terminal portions mutually spaced apart from each other to be formed on the end portion of the connecting portion of the ground contact terminal The second connector portion is disposed on the second substrate so as to be disposed therebetween.

The contact pins may include a pair of contact pins and an elastic member that urges the pair of contact pins in a direction separating the pair of contact pins. Connecting portions of the contact terminals for signal may be arranged between the coupling portion and the rear portion of the second connector portion of the ground contact terminal.

According to the board connecting connector of the present invention, one fixed terminal portion of the signal contact terminal is formed between the two fixed terminal portions spaced apart from each other formed at the end of the connecting portion of the ground contact terminal. Since the second connector part is arranged on the second substrate as shown in FIG. 2, the transmission characteristics of the test signal in the high frequency band in the transmission line can be improved without changing the distance between the plurality of contacts. Can be improved.

It is a perspective view which shows the external appearance of an example of the board | substrate connector which concerns on this invention seeing from a male connector. It is a top view in the example shown by FIG. It is a side view in the example shown by FIG. It is a perspective view which expands and shows the A section in FIG. It is sectional drawing shown along the VV line in FIG. It is a perspective view which shows the state by which the board | substrate connector shown by FIG. 1 was fixed to the wiring board and the test board. It is a front view in the example shown by FIG. It is a side view in the example shown by FIG. It is a top view which shows the test board in the example shown by FIG. 1 is an exploded perspective view showing an example of a board connecting connector according to the present invention. It is a top view in FIG. It is a side view in FIG. It is the perspective view seen from the lower surface in FIG. It is a perspective view which shows the male connector which comprises some board connection connectors which concern on this invention. It is a top view in the example shown by FIG. (A) is a rear view in the example shown in FIG. 14, and (B) is a front view in the example shown in FIG. 14. It is a side view in the example shown by FIG. FIG. 16 is a cross-sectional view taken along line XVIII-XVIII in FIG. 15. It is a perspective view which shows the female connector which comprises some board connection connectors which concern on this invention. It is a rear view in the example shown by FIG. FIG. 20 is a cross-sectional view taken along line XXI-XXI in FIG. 19. (A) and (B) are perspective views of signal contact terminals, respectively, and (C) is a plan view of (A). (A) and (B) are perspective views of a contact terminal for grounding, respectively, and (C) is a plan view of (A). It is a perspective view which shows the external appearance of an example of the board | substrate connector which concerns on this invention seeing from a female connector. FIG. 25 is a perspective view showing a state where the female connector is removed from the male connector shown in FIG. 24. (A) and (D) are enlarged perspective views of part XXVIA and part XXVID shown in FIGS. 24 and 25, respectively, and (B) and (C) are male connectors shown in FIG. FIG. 10 is a partial perspective view for explaining a procedure for removing the female connector from the connector.

  FIG. 6 schematically shows an example of a board connecting connector according to the present invention together with a test board.

  The board connection connector 16 electrically connects a plurality of transmission paths of the wiring board 12 arranged in the inspection apparatus main body (not shown) and a plurality of transmission paths of the test board 10 corresponding thereto. The At one end of the mounting surface 12A of the wiring board 12 parallel to the X-coordinate axis in FIG. 6, one end of an L-shaped connecting piece 14 for connecting the test board 10 to the wiring board 12 via a square spacer SP is fixed. Has been. As a result, the test board 10 is arranged so as to be substantially perpendicular to the mounting surface 12A of the wiring board 12 and spread along the Z coordinate axis in FIGS. 6 and 7 as shown in FIG. Both ends of the test board 10 are detachably connected to the other end of each connecting piece 14 via a square spacer SP. Thereby, for example, when a plurality of types of test boards 10 are prepared, any one of the plurality of types of test boards 10 is selectively connected to the other end of each connecting piece 14 via the square spacer SP. Will be.

  As shown in FIG. 9, for example, a hole 10 d and a hole 10 c into which a machine screw (not shown) is inserted are formed at both ends of the test board 10. The test board 10 is fixed to the other end of each connecting piece 14 by screwing the small screw into the female screw hole at the other end of each connecting piece 14 through the holes 10d and 10c and the holes of the square spacer SP. It will be.

  The test board 10 includes a socket (not shown) on which a semiconductor element as an object to be inspected is mounted. A plurality of mounting holes 10a and 10b are formed at predetermined intervals on both ends of the test board 10 parallel to the Y coordinate axis in FIG.

  At the center of the test board 10, a contact pad group is formed in which contact portions of a plurality of contact pins described later come into contact. The contact pad group is composed of contact pads 10gi and 10si (i = 1 to 20) formed at a predetermined interval on a straight line extending along the Y coordinate axis in FIG. The row of contact pads 10gi and the row of contact pads 10si are formed in two rows facing each other in parallel. The row of contact pads 10gi is conducted to the ground line conductive pattern on the test board 10, and the row of contact pads 10si is conducted to the signal line conductive pattern on the test board 10.

  As shown in FIG. 8, the test board 10 and the wiring board 12 are connected to each other by the connecting pieces 14 and the spacers SP, and the test board 10 is supported substantially perpendicular to the mounting surface 12A of the wiring board 12. However, without being limited to such an example, for example, the test board 10 and the wiring board 12 are configured to be individually supported by another device without being connected to each other, The test board 10 may be configured to be disposed substantially perpendicular to the mounting surface 12A of the wiring board 12.

  As shown in FIGS. 10 to 13, the board connecting connector 16 includes a male connector 22 as a first connector portion that is detachably connected to each other, and a female connector 20 as a second connector portion. It is comprised including.

  The male connector 22 is formed of, for example, a resin material, and as shown in FIGS. 14 and 15, as shown in FIGS. The contact pin 24ai is contacted with the contact pad group in the test board 10 described above, and the connection portion 22B is joined to the end of the contact pin holding portion 22A and connected to the female connector 20. ing.

  The contact pin 24ai is made of, for example, phosphor bronze or beryllium copper. The contact pin 24ai has the same structure as a so-called pogo pin. As shown in an enlarged view in FIG. 18, the pair of contact pins P1, P2 and the pair of contact pins P1, P2 are separated from each other. And a coil spring S as an elastic member to be urged.

  As shown in FIG. 18, the contact pin holding portion 22A has holes 22ai and 22bi (i = 1 to 20) for accommodating the contact pin P1 and the coil spring S in a movable manner. As shown in FIG. 19, the holes 22ai and 22bi are formed on a straight line along the Y coordinate axis in correspondence with the distance between the contact pads 10gi and 10si of the test board 10 described above. The row of holes 22ai is located above the row of holes 22bi. Since the holes 22ai and 22bi have the same structure, the hole 22ai will be described, and the description of the hole 22bi will be omitted. The hole 22ai includes a base portion of the contact pin P1, a large-diameter portion that accommodates the coil spring S, and a small-diameter portion that communicates with the large-diameter portion and into which the tip portion of the contact pin P1 is inserted.

  As shown in FIG. 15, guide pins 22P are integrally formed at both ends of the end surface of the connecting portion 22B from which the contact pin P2 protrudes. As shown in FIG. 17, each guide pin 22 </ b> P extends a predetermined length substantially perpendicular to the end face. When the male connector 22 is connected to the female connector 20, each guide pin 22P is fitted into a hole 20R of the female connector 20 described later. Further, guide pieces 22n1 and 22n2 are integrally formed on the end face at a predetermined interval between the guide pins 22P on the end face from which the contact pin P2 protrudes in the connecting portion 22B. The positions of the guide pieces 22n1 and 22n2 along the Z coordinate axis are higher than the position of the guide pin 22P as shown in FIGS. 16 (A), (B) and FIG. Furthermore, on both side surfaces of the connecting portion 22B, when the male connector 22 is connected to the female connector 20, locking claws that are respectively locked to lock fittings 20Re and 20Le of the female connector 20 described later. 22Rn and 22Ln are formed. The positions of the locking claws 22Rn and 22Ln along the Z coordinate axis are set substantially the same as the position of the guide pin 22P. Holes for movably accommodating the other end of the coil spring S and the contact pin P2 are formed at positions facing the holes 22ai and 22bi of the contact pin holding portion 22A in the connection portion 22B. Each of the holes includes a base portion of the contact pin P2, a large diameter portion that accommodates the other end of the coil spring S, and a small diameter portion that communicates with the large diameter portion and into which the tip portion of the contact pin P2 is inserted. Yes.

  The female connector 20 is formed of, for example, a resin material, and accommodates signal contact terminals 32Si and ground contact terminals 32Gi (i = 1 to 20), which will be described later, as shown in FIGS. 19 and 20. The contact terminal holding portion 20A to be held, the signal contact terminal 32Si and the ground contact terminal 32Gi, one end of which is connected to the contact pin P2 of the contact pin 24ai, and the both ends of the contact terminal holding portion 20A are integrally formed. And a fixing portion 20 </ b> B fixed to the wiring board 12.

  As shown in FIGS. 22A and 22B, the signal contact terminal 32Si connected to the contact pin P2 of the contact pin 24ai is made of, for example, phosphor bronze or beryllium copper. The signal contact terminal 32Si includes a pair of movable pieces 32a and 32b that cooperatively sandwich the contact pin P2, a single fixed terminal portion 32f that is fixed by soldering to the signal line electrode portion of the wiring board 12, The connecting portion 32d connects the connecting portion of the pair of movable pieces 32a and 32b and the fixed terminal portion 32f.

  The pair of elastic movable pieces 32a and 32b have contact portions 32ac and 32bc, respectively, at the tip portions. The distance Da between the contact portion 32ac and the contact portion 32bc shown in FIG. 22C is set to be slightly smaller than the diameter of the contact pin P2 of the contact pin 24ai. Locking pieces 32an and 32bn that are locked to the inner peripheral portion of the hole 20bi are integrally formed at the bases of the movable pieces 32a and 32b, respectively.

  The ground contact terminal 30Gi connected to the contact pin P2 of the contact pin 24ai is made of phosphor bronze or beryllium copper, for example, as shown in FIGS. 23 (A) and (B). The ground contact terminal 30Gi includes a pair of movable pieces 30a and 30b that cooperatively sandwich the contact pin P2, a fixed terminal portion 30f1 and 30f2 that are soldered and fixed to the ground line electrode portion of the wiring board 12, and a pair. The movable pieces 30a and 30b are coupled to the fixed terminal portions 30f1 and 30f2.

  Each of the pair of elastic movable pieces 30a and 30b has contact portions 30ac and 30bc at the tip portions. The mutual distance Db between the contact part 30ac and the contact part 30bc shown in FIG. 23C is set slightly smaller than the diameter of the contact pin P2 of the contact pin 24ai. Locking pieces 30an and 30bn that are locked to the inner peripheral portion of the hole 20ai are integrally formed at the bases of the movable pieces 30a and 30b, respectively. The fixed terminal portions 30f1 and 30f2 are integrally formed at both ends of the end portion of the connecting portion 30d with a predetermined distance from each other. Thus, on the mounting surface of the wiring board 12, the fixed terminal portion 32f of the signal contact terminal 32Si is disposed between the fixed terminal portions 30f1 and 30f2 of the ground contact terminal 30Gi.

  Each fixing portion 20B has a through hole 20a in the center. A small screw for fixing the female connector 20 to the wiring board 12 is inserted into the through hole 20a. A hole 20 </ b> R into which the guide pin 20 </ b> P is fitted is opened at an end portion of each fixing portion 20 </ b> B facing the male connector 22. As shown in FIGS. 19 and 21, lock fittings 20Re and 20Le are provided on the periphery of the hole 20R. Each of the lock fittings 20Re and 20Le has a hole 20d. When the male connector 22 is connected to the female connector 20 at the periphery of the hole 20d, the locking claws 22Rn and 22Ln of the male connector 22 are locked.

  As shown in FIGS. 19 and 21, the contact terminal holding portion 20A has holes 20ai and 20bi (i = 1 to 20) for receiving the ground contact terminal 30Gi and the signal contact terminal 32Si, respectively. Each of the holes 20ai and 20bi is formed on a straight line along the Y coordinate axis so as to correspond to the distance between the contact pins P2. The row of holes 20ai is located above the row of holes 20bi. Since the holes 20ai and 20bi have the same structure, the hole 20ai will be described, and the description of the hole 20bi will be omitted. The hole 20ai is configured such that the movable pieces 30a and 30b of the ground contact terminal 30Gi are inserted, and the locking pieces 30an and 30bn are press-fitted into the open ends. At this time, as shown in FIG. 4, the partition walls formed on the back surface portion of the contact terminal holding portion 20A so that the connecting portion 30d of the ground contact terminal 30Gi covers the connecting portion 32d of the signal contact terminal 32Si. Arranged between.

  Grooves 20g1 and 20g2 into which the guide pieces 22n1 and 22n2 of the male connector 22 are inserted are formed on the upper surface portion of the contact terminal holding portion 20A. Further, as shown in FIGS. 13 and 20, positioning pins 20P to be fitted in holes (not shown) of the wiring board 12 are formed in two places on the lower surface portion of the contact terminal holding portion 20A.

  In such a configuration, when the board connector 16 is mounted on the mounting surface of the wiring board 12, first, the female connector 20 to which the signal contact terminal 32 Si and the ground contact terminal 32 Gi are mounted is mounted on the mounting surface of the wiring board 12. It is fixed with the above-mentioned machine screw. At this time, as shown in an enlarged view in FIG. 4, the fixed terminal portion 32f of the signal contact terminal 32Si fixed by soldering is disposed between the fixed terminal portions 30f1 and 30f2 of the ground contact terminal 30Gi. It becomes. As a result, crosstalk in the high-speed signal transmission path is suppressed without a significant design change of the board connecting connector 16.

  Next, as shown in FIGS. 10 and 13, the guide pin 22P and the guide pieces 22n1 and 22n2 of the male connector 22 are inserted into the grooves 20g1 and 20g2 and the hole 20R of the female connector 20 facing each other. The Thereby, as shown in FIG. 1, the locking claws 22Rn and 22Ln of the male connector 22 are locked to the periphery of the holes 20d of the lock fittings 20Re and 20Le. Therefore, the male connector 22 and the female connector 20 are connected, and the assembly of the board connecting connector 16 is completed. At this time, the contact pin 24ai in the male connector 22 is not affected by heat due to the soldering operation of the signal contact terminal 32Si and the ground contact terminal 30Gi, and therefore the heat resistance of the contact pin 24ai is not required.

  Then, as shown in FIG. 6, the test board 10 pressed against the contact pin 24ai in the male connector 22 is connected to the wiring board 12 via the connecting piece 14 and the spacer SP.

  On the other hand, when disassembling the male connector 22 and the female connector 20 in the board connection connector 16 assembled as shown in FIG. 24, first, as shown in FIG. The tip of the tool T is pressed between the lock fitting 20Re and the locking claw 22Rn so that they are separated from each other. As shown in FIG. It can be moved to the side against the force. At that time, as shown in FIG. 26 (C), one end of the lock fitting 20Re is pressed by the tip of the tool T, and the locking claw portion 22Rn of the male connector 22 is moved from the periphery of the opening end of the lock fitting 20Re. Removed. Next, the tip of the tool T is pressed between the lock fitting 20Le and the locking claw 22Ln so as to separate them, and one end of the lock fitting 20Le moves sideways against its elastic force. I'm damned. At that time, one end of the lock fitting 20Le is pressed by the tip of the tool T, and as shown in FIG. 26 (D), the locking claw portion 22Ln of the male connector 22 extends from the periphery of the opening end of the lock fitting 20Le. Removed. As a result, as shown in FIG. 25, the male connector 22 and the female connector 20 in the plate connecting connector 16 are disassembled so that they can be separated from each other.

  In the example of the board connecting connector according to the present invention, the test board and the wiring board are connected. However, the printed board is not limited to such an example and is used for other electronic devices. Of course, it may be applied to be used for connecting substrates.

10 Test board 12 Wiring board 16 Board connector 20 Female connector 20Re, 20Le Lock fitting 22 Male connector 22Rn, 22Ln Locking claw part 32Si Signal contact terminal 32f Fixed terminal part 30Gi Grounding contact terminal 30f1, 30f2 Fixed Terminal section

Claims (3)

A first connector portion having a plurality of contact pins in contact with the electrode group of the removable first substrate;
Arranged on a second substrate coupled to the first substrate, the relative first connector part and a second connector portion that will be detachable, respectively removably connected to said plurality of contact pins A plurality of movable pieces, a single fixed terminal portion fixed to the second substrate, and a plurality of connecting portions connecting the coupling portion of the pair of movable pieces and the fixed terminal portion . Signal contact terminals, a pair of movable pieces detachably connected to the plurality of contact pins, two fixed terminal portions fixed to the second substrate, and a combination of the pair of movable pieces A second connector part having a plurality of ground contact terminals each having a connecting part for connecting the part and the fixed terminal part ,
The second fixed terminal portion of the signal contact terminal is disposed between the two fixed terminal portions spaced apart from each other and formed at the end of the connecting portion of the ground contact terminal. A connector for connecting a board, wherein the connector portion is disposed on the second board.   The board contact connector according to claim 1, wherein the contact pins include a pair of contact pins and an elastic member that biases the pair of contact pins in a direction to separate the pair of contact pins. 2. The board connecting connector according to claim 1 , wherein the connecting portion of the signal contact terminal is disposed between the connecting portion of the ground contact terminal and a back surface portion of the second connector portion .

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