JP2009266647A - Case with electric connector for circuit board, and electronic unit equipped with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To fit a terminal fixing member into a connector fitting part surely by a simple method, and carry out confirmation work simply and precisely. <P>SOLUTION: A case 10 with an electric connector for a circuit board has a peripheral wall 15' in which a connector fitting part 17 is erected in the depth direction of a case member 11, and the peripheral wall 15' has a protruding part insertion hole 80 into which a protruding part 53 of a first fixing member 21 is inserted, and a protruding part engaging hole 81 in which the protruding part 53 inserted into the protruding part insertion hole 80 is sent by changing a movement route in the peripheral wall 15'. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a circuit board case with an electrical connector and an electronic unit including the same.

  Conventionally, as a connector provided in an automobile or the like, for example, various electronic units 100 such as an ECU (Electronic Control Unit) in the form shown in FIG. 11 are used (Patent Document 1).

As shown in FIG. 11, the electronic unit 100 includes a case 101, a wiring board 102 provided in the case 101, and a connector 103 attached to the case 101. The connector 103 includes a housing 104 attached to the case 101 and a plurality of terminals 105 provided in the housing 104. The housing 104 is configured separately from the case 101. An electronic component 106 is formed on the wiring board 102. The electronic component 106 is electrically connected to the terminal on the connection partner side via the terminal 105. The electronic unit 100 is electrically connected to a wire harness provided in an automobile or the like via a connection partner side electrical connector or the like by fitting a connector 103 electrical connector to the connector 103.
JP 2000-92652 A

  In the electronic unit 100 as shown in FIG. 11, since the case 101 and the housing 104 of the connector 103 are separate, it is difficult to stably fix the case 101 and the connector 103. Therefore, stress is likely to occur at the joint between the wiring board 102 and the terminal 105, and it is difficult to ensure connection reliability. Furthermore, when a liquid such as water enters between the case 101 and the connector 103, there is a possibility that a problem may occur in the quality of the electronic unit 100.

  Therefore, in order to solve the above-described problem, the connector fitting portion that fits into the electrical connector on the connection partner side is formed integrally with the case member, and only the portion for fixing the terminal (terminal fixing member) is formed separately. Electronic units are being researched and developed.

  However, when the terminal fixing member is fitted to the connector fitting portion integrally formed with the case member, it is difficult to reliably fit the terminal fixing member at an accurate position of the connector fitting portion. Requires skill. In addition, there is a problem that it takes time to confirm whether or not the terminal fixing member is securely fitted at an accurate position after the terminal fixing member is fitted to the connector fitting portion.

  The present invention has been made in view of such various points. The object of the present invention is to ensure that the terminal fixing member is securely fitted to the connector fitting portion by a simple method, and the confirmation work is simple and easy. To provide a case for a circuit board with an electrical connector that can be accurately performed and an electronic unit including the same.

  A circuit board case with an electrical connector according to the present invention includes a case member formed with a connector fitting portion for fitting with an electrical connector on a connection partner side, a circuit accommodated in the case member and mounted with an electronic component. A board, a lid member attached to the case member, and a connection member housed in the case member and attached to the connector fitting portion to electrically connect the connection partner connector and the circuit board. The connection member includes a first rod-shaped portion that is electrically connected to a terminal of the connection counterpart connector, and a second rod-shaped portion that is integrally formed with the first rod-shaped portion and extends toward the lid member, and The terminal is fixed by holding the first rod-shaped portion of the terminal and being attached to the connector fitting portion of the case member, and the insertion hole is formed with the first fixing member having the protruding portion formed at the end portion. , Insert the second rod-shaped part into the insertion hole And a second fixing member that restricts movement of the terminal in a direction in which the first rod-like portion extends into the case member by being attached to the case member, and the connector fitting portion is the case member. The peripheral wall has a peripheral wall standing up in the depth direction, and the peripheral wall changes the movement path in the peripheral wall by the protrusion insertion hole into which the protrusion of the first fixing member is inserted and the protrusion inserted into the protrusion insertion hole. And a protrusion engaging hole to be fed in.

  According to such a configuration, when the first fixing member is fitted into the connector fitting portion and fixed, first, the protrusion portion of the first fixing member is formed in the peripheral wall of the connector fitting portion. Plug in. Next, the protruding portion of the first fixing member inserted into the protruding portion insertion hole is fed into the protruding portion engaging hole while changing its movement path in the peripheral wall. For this reason, the movement path is changed after the protrusion of the first fixing member is inserted in the peripheral wall, thereby effectively preventing the protrusion from returning in the insertion direction. Therefore, the first fixing member can be satisfactorily suppressed from being detached from the connector fitting portion, and the fitting of the first fixing member into the mounting hole of the connector fitting portion can be accurately performed with a simple operation. Can do. Further, when the protrusion of the first fixing member inserted into the protrusion insertion hole is fed into the protrusion engagement hole while changing its movement path in the peripheral wall, the gap between the first fixing member and the mounting hole of the peripheral wall There was a space that was missing when plugged in. Specifically, if the projecting portion of the first fixing member is to be sent into the projecting portion engaging hole by changing the movement path to the lower direction of the case member in the peripheral wall, above the first fixing member, Space that was not present at the time of insertion occurs. For this reason, the operation for confirming that the first fixing member is fitted in the connector fitting portion at an accurate position only needs to be checked for the existence of this space, without using a sensor, and without skill. It can be done easily without any need.

  In the circuit board case with an electrical connector according to the present invention, the protrusion engaging hole of the peripheral wall is the case where the protrusion of the first fixing member inserted into the protrusion inserting hole of the peripheral wall is the movement path in the peripheral wall. You may be provided in the position sent in changing to the bottom direction of a member.

  According to such a configuration, since the protrusion of the first fixing member is sent by changing the movement path in the peripheral wall of the connector fitting portion toward the bottom of the case member, the protrusion is sent in the other direction. The operation is easy, and the first fixing member can be stably installed in the case member.

  Furthermore, in the case for a circuit board with an electrical connector according to the present invention, the first fixing member is formed in a stepped shape at the housing portion accommodated in the connector fitting portion of the case member and at the end portion of the housing portion. A front stop portion that abuts on the joint portion and restricts movement of the first fixing member toward the connector fitting portion.

  According to such a configuration, the first fixing member is formed in a stepped shape at the end of the accommodating portion accommodated in the connector fitting portion of the case member and abuts on the connector fitting portion, and the first fixing member Since the front stop portion that restricts the movement in the connector fitting portion direction is provided, it is possible to satisfactorily suppress the first fixing member from entering beyond the desired position into the connector fitting portion.

  Moreover, the case for a circuit board with an electrical connector according to the present invention has a gap between the peripheral wall of the connector fitting portion and the first fixing member that is fed into the protrusion engagement hole of the peripheral wall and locked to the protrusion. An insertion member may be inserted into the.

  According to such a configuration, the insertion member is inserted into the gap between the peripheral wall of the connector fitting portion and the first fixing member that is fed into the protrusion engagement hole of the peripheral wall and the protrusion is locked. Therefore, the first fixing member fitted in the connector fitting portion can be more firmly fixed.

  Furthermore, the circuit board case with an electrical connector according to the present invention has one of the contact surface of the first fixing member to the insertion member and the contact surface of the insertion member to the first fixing member locked to the other. A locking portion for doing this may be formed.

  According to such a configuration, either one of the contact surface of the first fixing member with respect to the insertion member and the contact surface of the insertion member with respect to the first fixing member has a locking portion for locking to the other. Since it is formed, it is possible to favorably suppress the insertion member from being detached from between the first fixing member and the connector fitting portion. Therefore, the insertion member can be reliably inserted between the first fixing member and the connector fitting portion, and the detachment of the first fixing member can be suppressed better.

  Further, in the case for a circuit board with an electric connector according to the present invention, the insertion member may be formed of an elastic material.

  According to such a configuration, since the insertion member is formed of an elastic material, the airtightness between the first fixing member and the peripheral wall of the connector fitting portion becomes good, and the connector performance becomes good. Further, the insertion member can be freely inserted between the first fixing member and the peripheral wall of the connector fitting portion, and the workability is improved.

  Furthermore, in the case for a circuit board with an electrical connector according to the present invention, a locking portion is formed at the end of the insertion member in the case member inner direction, and the insertion member is formed at the end of the second fixing member in the outer direction of the case member. An engaging portion that engages and fixes the engaging portion may be formed.

  According to such a configuration, the engaging portion of the insertion member inserted between the first fixing member and the connector fitting portion engages with the engaging portion of the case member of the second fixing member. A fixing member, an insertion part, and a 2nd fixing member are united, and these can be fixed more favorably.

  In the circuit board case with an electrical connector according to the present invention, the second fixing member is provided with an engaging portion, the case member is provided with an engaging portion, and the second fixing member is provided with an engaging portion. By engaging the engaging portion, the movement of the terminal in the direction in which the first rod-like portion extends into the case member may be restricted.

  According to such a configuration, the engaging portion of the case member is engaged with the engaging portion of the second fixing member, thereby restricting the movement of the terminal in the direction in which the first rod-like portion extends into the case member. The drop-off of the terminal and the first fixing member from the connector fitting portion can be suppressed with a simple structure. For this reason, manufacturing efficiency becomes favorable.

  Furthermore, the circuit board case with an electrical connector according to the present invention is provided with an insertion hole so that the second fixing member penetrates in the thickness direction, and the direction in which the first rod-shaped portion intersects the direction extending into the case member The latch part of the 2nd fixing member may be provided in the at least one end of the longitudinal direction of the plate part.

  According to such a structure, the latching | locking part of a 2nd fixing member is provided in at least one end of the longitudinal direction of the plate part formed so that it might extend in the direction which cross | intersects the direction where a 1st rod-shaped part extends in a case member. Therefore, the terminal and the first fixing member can be prevented from falling off from the connector fitting portion with a simpler structure. For this reason, manufacturing efficiency becomes better.

  In the circuit board case with an electrical connector according to the present invention, the second fixing member is formed so as to extend from the surface of the plate portion into the case member, and contacts the inner surface of the case member of the first fixing member. You may provide the wall part provided.

  According to such a configuration, the second fixing member is formed so as to extend from the surface of the plate portion into the case member, and includes the wall portion provided so as to contact the case member inner surface of the first fixing member. Therefore, the wall portion is an obstacle to the movement of the terminal and the connector fitting portion of the first fixing member. Therefore, the terminal and the first fixing member can be prevented from dropping off from the connector fitting portion.

  An electronic unit according to the present invention includes the above-described circuit board case with an electrical connector.

  According to such a configuration, since the electronic unit includes the above-described circuit board case with an electrical connector, the first fixing member can be satisfactorily prevented from being detached from the connector fitting portion, and the first fixing can be performed. The fitting of the member into the connector fitting portion can be performed accurately with a simple operation. Furthermore, it is only necessary to check the existence of this space for the confirmation work that the first fixing member is fitted into the connector fitting portion at an accurate position, without using a sensor, and skill is required. Can be done without.

  According to the present invention, there is provided a circuit board case with an electrical connector capable of securely fitting a terminal fixing member to a connector fitting portion with a simple method and performing a check operation easily and accurately. Electronic units can be provided.

  Hereinafter, a circuit board case with an electrical connector according to an embodiment of the present invention and an electronic unit including the same will be described in detail with reference to the drawings. The present invention is not limited to the following embodiment.

(Configuration of circuit board case 10 with electrical connector)
FIG. 1: shows the schematic diagram of the case 10 for circuit boards with an electrical connector in the state from which the cover member 12 which concerns on embodiment of this invention was removed. FIG. 2 is a cross-sectional view of the circuit board case 10 with an electrical connector. The circuit board case 10 with an electrical connector includes a case member 11, a lid member 12, a circuit board 50, and a connection member 13.

  The case member 11 includes a rectangular bottom plate 14 and a plurality of peripheral walls 15 and 15 ′ integrally formed so as to stand up from the bottom plate 14. One peripheral wall 15 ′ of the case member 11 is provided with a connector fitting portion 17 that protrudes to the outside of the case member 11, has an opening 16, and fits with a case for a circuit board with an electrical connector on the connection partner side. Yes. The connector fitting portion 17 is formed with an attachment hole 18 for attaching a first fixing member 21 of the connecting member 13 described later along the circumferential direction of the corresponding peripheral wall 15 ′. Two mounting holes 18 are arranged in parallel in the length direction of the corresponding peripheral wall 15 ′.

  Groove-shaped engaging portions 23 are formed at the upper ends of the peripheral walls 15 adjacent to the peripheral wall 15 ′ constituting the connector fitting portion 17. The groove-like engaging portion 23 is formed in the vicinity of the peripheral wall 15 ′ where the connector fitting portion 17 is formed in the peripheral wall 15 where they are formed.

  The lid member 12 is formed in a rectangular thin plate shape. The lid member 12 is attached to the case member 11 via a rubber packing (not shown) for suppressing intrusion of moisture. The lid member 12 is not limited to the rubber packing, and may be attached to the case member 11 by a known sealing material. The lid member 12 and the case member 11 are each formed of an insulating synthetic resin or the like.

  The circuit board 50 includes an insulating substrate and an electronic component 24 provided on the insulating substrate, and a conductive pattern such as a copper foil electrically connected to the electronic component 24 is mounted thereon.

  FIG. 3 shows a perspective view of the connecting member 13. As shown in FIGS. 1 to 3, the connecting member 13 is accommodated in the case member 11 and attached to the connector fitting portion 17. The connection member 13 includes a first fixing member 21, a terminal 19, a second fixing member 22, and an insertion member 70.

  The first fixing member 21 includes an accommodating portion 51 that is formed in an elongated plate shape and is accommodated in the connector fitting portion 17 of the case member 11. In the accommodating portion 51 of the first fixing member 21, a plurality of rows of insertion holes 25 are formed at substantially equal intervals in the vertical direction along the direction in which the plate extends. The first rod-shaped portions 31 of the terminals 19 are respectively inserted into the plurality of insertion holes 25 of the first fixing member 21, thereby holding the terminals 19. The first fixing member 21 is made of, for example, resin. A total of two first fixing members 21 are provided, and the terminals 19 are fixed by being attached to two attachment holes 18 formed in the connector fitting portion 17 so as to be juxtaposed side by side. As shown in FIG. 4, at the end of the accommodating portion 51, it is formed in a stepped shape, abuts against the connector fitting portion 17, and restricts the movement of the first fixing member 21 in the direction of the connector fitting portion 17. A stop 52 is formed. In addition, a protrusion 53 is formed at the end of the accommodating portion 51. The projecting portion 53 is formed in a prismatic shape, and is formed at the end of the accommodating portion 51 in front and above in the insertion direction of the first fixing member 21. The shape of the protrusion 53 is not particularly limited, and may be, for example, a cylindrical shape, a pyramid shape, or a conical shape. Further, the projection 53 may be formed on the end surface of the accommodating portion 51 with respect to the formation position. For example, the protruding portion 53 is formed at the end of the accommodating portion 51 at the rear or the center in the insertion direction of the first fixing member 21. It may be.

  In addition, the 1st fixing member 21 is comprised separately from the terminal 19 as mentioned above, and the terminal 19 does not need to be attached by inserting the 1st rod-shaped part 31. FIG. That is, for example, the first fixing member 21 integrated with the terminal 19 may be manufactured by arranging the terminals 19 in a mold or the like and performing injection molding using a resin material or the like on the terminals 19.

  The terminal 19 is made of a conductive member, and is a first rod-shaped portion 31 that is electrically connected to the terminal of the connection counterpart connector, a first rod-shaped portion 31 that is integrally formed with the first rod-shaped portion 31 and extends toward the lid member 12. Two rod-shaped parts 32. The first and second rod-like portions 31 and 32 are formed by bending a single terminal rod by approximately 90 °, respectively.

  The 1st rod-shaped part 31 is inserted in the insertion hole 25 of the 1st fixing member 21, and protrudes only the same length to the other side. Moreover, the 1st rod-shaped part 31 is the case member 11 inner side direction of the 1st fixing member 21 from the thing corresponding to the lower insertion hole 25 of the 1st fixing member 21 from the thing corresponding to the upper insertion hole 25. It is formed long. As described above, the first fixing member 21 has two rows of insertion holes 25 into which the first rod-like portions 31 are inserted, and is press-fitted into the four mounting holes 18 formed in the connector fitting portion 17 of the case member 11. The As described above, a total of four columns each including the plurality of first rod-shaped portions 31 are provided.

  The 2nd rod-shaped part 32 is comprised so that it may extend in the direction of the cover member 12 from the edge part of the case member 11 inner side of the 1st rod-shaped part 31 in about 90 degree. The second rod-like portions 32 extend from the plurality of first rod-like portions 31 to the lid member 12, respectively, and their tips are aligned horizontally, and are electrically connected to the conductive pattern mounted on the circuit board 50 at the tips. ing.

  The second fixing member 22 is made of, for example, a resin material, and includes a plate portion 33 formed so that the first rod-shaped portion 31 extends in a direction intersecting with the direction extending into the case member 11. That is, the plate portion 33 of the second fixing member 22 is provided so as to extend along the peripheral wall 15 ′ where the connector fitting portion 17 of the case member 11 is formed.

  The plate portion 33 is formed with protruding locking portions 36 at both ends in the length direction. The plate portion 33 is formed with a plurality of insertion holes 35 in parallel with each other along the length direction of the plate so as to penetrate the plate portion 33 at substantially equal intervals in the thickness direction. Two rows of the insertion holes 35 are formed in the width direction of the plate portion 33, and two portions are provided in the length direction of the plate portion 33 with a space therebetween. As for this insertion hole 35, only the 2nd rod-shaped part 32 is inserted with respect to the 1 hole.

  The second fixing members 22 are formed in two rows in the width direction of the plate portion 33 and inserted into the insertion holes 35 provided in two portions at intervals in the length direction, respectively, from the plurality of first rod-shaped portions 31 to the lid members. The second rod-like portion 32 provided so as to extend to 12 is inserted and held. The four rows of insertion holes 35 of the plate portion 33 are provided at positions corresponding to the four rows of second rod-shaped portions 32 to be inserted. The second fixing member 22 is attached to the case member 11, thereby restricting the movement of the terminal 19 in the direction in which the first rod-shaped portion 31 extends into the case member 11. For attachment to the case member 11, specifically, the groove-like engagement portion 23 of the case member 11 is engaged with the protruding engagement portion 36 of the plate portion 33. Accordingly, the second fixing member 22 restricts the movement of the terminal 19 in the direction in which the first rod-shaped portion 31 extends into the case member 11.

  In addition, the second fixing member 22 is formed with an engaging portion 72 that engages and fixes a locking portion 71 of an insertion member 70 described later at the end of the plate portion 33 in the case member 11 outer direction.

  Further, the second fixing member 22 is integrally formed so as to extend from the surface of the plate portion 33 into the case member 11, and a wall portion 37 provided so as to contact the inner surface of the case member 11 of the first fixing member 21. I have. A frame A illustrated in FIG. 3 indicates a portion of the wall portion 37 that contacts the first fixing member 21.

  The wall portion 37 includes a plurality of second rod-like portions 32 provided in two rows along the extending direction of the peripheral wall 15 ′ corresponding to the connector fitting portion 17 of the case member 11, in the length direction of the plate portion 33. Four are formed so as to be sandwiched from both sides.

  The four wall portions 37 of the second fixing member 22 are provided so that the first fixing member 21 comes into contact with the surface of the case member 11 on the side of the connector fitting portion 17, thereby the terminal 19 and the first fixing member 22. The falling of the member 21 from the connector fitting portion 17 is suppressed.

  The positions of the engaging portion 23 of the case member 11 and the engaging portion 36 of the second fixing member 22 are not limited. For example, the engaging portion 23 of the case member 11 is a groove provided in the bottom plate 14 of the case member 11, and the locking portion 36 of the second fixing member 22 is formed at a position corresponding to the groove at the tip of the wall portion 37. It may be.

  The insertion member 70 is formed in a substantially plate shape. Although the constituent material of the insertion member 70 is not particularly limited, for example, the insertion member 70 is preferably made of an elastic material such as a resin. The insertion member 70 is closely packed in a gap (space S2, S4) generated between the upper surface of the first fixing member 21 attached to the attachment hole 18 of the peripheral wall 15 ′ of the connector fitting portion 17 and the peripheral wall 15 ′. Has been inserted.

  When the insertion member 70 is densely inserted into the gap (spaces S <b> 2 and S <b> 4), the surface of the first fixing member 21 comes into contact with the surface of the insertion member 70. At this time, a locking portion for locking to the insertion member 70 such as a protrusion may be formed on the contact surface 78 of the first fixing member 21 with the insertion member 70. In addition, a locking portion may be formed on the contact surface of the insertion member 70.

  Further, when the insertion member 70 is densely inserted into the gap (spaces S <b> 2 and S <b> 4), the end portion in the case member 11 in the inner direction contacts the end portion in the outer direction of the case member 11 of the second fixing member 22. At this time, a locking portion 71 is formed at the end of the insertion member 70 in the inner direction of the case member 11, and is locked to an engaging portion 72 formed at the end of the second fixing member 22 in the outer direction of the case member 11. Thus, the insertion member 70 is fixed more satisfactorily. In the present embodiment, as shown in FIG. 3, the engaging portion 71 of the insertion member 70 is formed in a male shape, and the engaging portion 72 of the second fixing member 22 is formed in a female shape. Both males and females may be opposite. Moreover, the latching | locking part 71 and the engaging part 72 may each be formed in multiple numbers. Furthermore, the shape of the latching | locking part 71 and the engaging part 72 is not specifically limited. Further, the insertion member 70 and the second fixing member 22 may be integrally formed. In this case, the insertion member 70 and the second fixing member 22 are made of elastic members from the viewpoints of insertion operability into the gaps (spaces S2, S4) of the insertion member and mounting operability of the second fixing member 22 to the terminal 19. It is good to use and form integrally.

  Next, the shape of the attachment hole 18 formed in the peripheral wall 15 ′ of the connector fitting portion 17 to which the first fixing member 21 and the insertion member 70 are attached will be described with reference to FIG. 5. FIG. 5 shows an enlarged view of the end of the mounting hole 18 formed in the peripheral wall 15 ′. A protrusion insertion hole 80 into which the protrusion 53 of the first fixing member 21 is inserted is formed at the end of the attachment hole 18 (P in FIG. 5 indicates the insertion direction of the protrusion 53). The protrusion insertion hole 80 is formed so as to go straight in the width direction of the peripheral wall 15 ′. The protruding portion insertion hole 80 is formed up to a substantially central portion in the width direction of the peripheral wall 15 ′, and a protruding portion engaging hole 81 is formed from the position toward the bottom of the case member 11. The protruding portion engaging hole 81 is a portion where the protruding portion 53 of the first fixing member 21 inserted into the protruding portion insertion hole 80 is finally fed by changing its insertion path (Q in FIG. 5 indicates the protruding portion). 53 shows the feeding direction).

  The electronic unit according to the present invention is configured by providing a separate connection member, electronic component, or the like on the circuit board case 10 with an electrical connector having the above-described configuration, and is provided with a predetermined electrical application. Functions as a body.

(Method of manufacturing case 10 for circuit board with electric connector)
Next, the manufacturing method of the case 10 for circuit boards with an electrical connector of the structure mentioned above is demonstrated. First, a plurality of linear rod terminals and a first fixing member 21 are prepared. Next, the rod-like terminals are respectively inserted into the insertion holes 25 of the first fixing member 21. The length for inserting the rod-shaped terminal into the first fixing member 21 can be arbitrarily set. However, since a portion to be bent later is necessary to form the second rod-shaped portion 32, the first fixing member 21 is rod-shaped. It is good to insert until it is located near either end of the terminal. At this time, the plurality of rod-shaped terminals are inserted so that the tip positions are all aligned.

  Next, of the rod-shaped terminals extending to both sides of the first fixing member 21, the longer one is bent by approximately 90 ° at the predetermined position. The bending direction is the same direction for all the rod-shaped terminals and intersects the length direction of the first fixing member 21. Thereby, the terminal 19 comprised by the 1st rod-shaped part 31 inserted in the 1st fixing member 21 and the 2nd rod-shaped part 32 extended from the 1st rod-shaped part 31 by substantially 90 degrees is completed. In this way, two terminals 19 fixed by the first fixing member 21 are produced.

  Then, the case member 11 is prepared and the terminal 19 fixed with the 1st fixing member 21 produced as mentioned above is attached. Specifically, the terminal 19 fixed by the first fixing member 21 is arranged in the case member 11 so that the tip of the first rod-shaped portion 31 faces the connector fitting portion 17. At this time, the second rod-shaped portion 32 faces the direction in which the lid member 12 is to be attached. Next, the terminal 19 fixed by the first fixing member 21 is slid in the direction of the connector fitting portion 17 and the two first fixing members 21 are inserted into the mounting holes 18 of the corresponding two connector fitting portions 17 respectively. Let The positional relationship between the mounting hole 18 of the peripheral wall 15 ′ and the first fixing member 21 at this time will be described in more detail with reference to FIGS.

  First, the first fixing member 21 is inserted into the mounting hole 18 of the peripheral wall 15 ′ so that the protrusion 53 corresponds to the protrusion insertion hole 80 at the end of the peripheral wall 15 ′ shown in FIG. 5. Here, FIG. 6 is a front view of the first fixing member 21 inserted into the mounting hole 18 of the peripheral wall 15 ′ as viewed from the inside of the case member 11. FIG. 7 is a cross-sectional view taken along the line I-I ′ of FIG. 6. Next, the first fixing member 21 in which the protrusion 53 is inserted into the protrusion insertion hole 80 is moved straight until the front stopper 52 comes into contact with the peripheral wall 15 ′ and stops. At this time, the protrusion 53 of the first fixing member 21 is inserted into the space S2 formed by the protrusion insertion hole 80 at the end of the mounting hole 18 of the peripheral wall 15 ′, and the protrusion engagement hole 81 is formed. The space S3 is vacant. In addition, a gap (space S <b> 1) is generated between the lower surface of the first fixing member 21 and the mounting hole 18.

  Subsequently, with respect to the first fixing member 21 in which the protruding portion 53 is inserted into the protruding portion insertion hole 80, the movement path in the peripheral wall 15 ′ is changed toward the bottom surface of the case member 11, and the protruding portion 53 is changed to the protruding portion engaging hole. The first fixing member 21 is fitted into the connector fitting portion 17 and fixed by being fed into 81. FIG. 8 is a front view of the first fixing member 21 viewed from the inside of the case member 11, which is fixed by being fitted into the connector fitting portion 17 by feeding the protruding portion 53 into the protruding portion engaging hole 81. 9 is a cross-sectional view taken along the line II-II 'of FIG. At this time, the protrusion 53 is fitted in the protrusion engaging hole 81 at the end of the mounting hole 18 of the peripheral wall 15 ′, and the space S2 formed by the protrusion inserting hole 80 is vacant. . Further, a gap (space S <b> 4) is generated between the upper surface of the first fixing member 21 and the mounting hole 18.

  In the present embodiment, the projecting portion 53 is fitted into the projecting portion engaging hole 81 by changing the movement path of the first fixing member 21 in the middle of the mounting hole 18 of the peripheral wall 15 ′ toward the bottom surface of the case member 11. The position of the movement path and the protrusion engaging hole 81 is not limited to this. For example, as shown in FIG. 10, at the end of the mounting hole 18 of the peripheral wall 15 ′, there is a protrusion insertion hole 80 ′ and a position from the protrusion protrusion insertion hole 80 ′ that goes straight toward the upper surface of the case member 11. The formed protrusion engaging hole 81 ′ and the protrusion engaging hole 81 ″ formed at a position toward the bottom surface of the case member 11 may be provided. In this case, the first fixing member 21 having the protrusion 53 inserted into the protrusion insertion hole 80 ′ may be moved upward (Q ′ direction) to send the protrusion 53 into the protrusion engagement hole 81 ′. Further, the protrusion 53 may be fed downward (Q ″ direction) into the protrusion engaging hole 81 ″. Further, the movement path may not be parallel to the standing direction of the peripheral wall 15 ′, and may be formed in an oblique direction. Further, the movement route may include a plurality of music parts.

  By fitting the protrusion 53 into the protrusion engaging hole 81 as described above, the first fixing member 21 is fixed in the peripheral wall 15 ′. Thereby, the terminal 19 fixed by the first fixing member 21 is fixed in the case member 11.

  Next, the insertion member 70 is densely inserted from the inside of the case member 11 into the gap (space S4) generated between the upper surface of the first fixing member 21 and the mounting hole 18.

  Subsequently, the second fixing member 22 is put on the second rod-shaped portion 32 of the terminal 19 fixed in the case member 11, and the plurality of second rod-shaped portions 32 are respectively inserted into the corresponding insertion holes 35 of the plate portion 33. The tip of the second rod-like portion 32 is held by protruding from the plate portion 33 by a predetermined length.

  At this time, the groove-shaped engaging portions 23 of the case member 11 are engaged with the protruding locking portions 36 formed at both ends in the length direction of the plate portion 33. Further, the wall portions 37 of the second fixing member 22 are provided at a plurality of second positions at two equal intervals along the extending direction of the peripheral wall 15 ′ corresponding to the connector fitting portion 17 of the case member 11. The two rod-shaped parts 32 are provided so as to be sandwiched in the length direction of the plate part 33, respectively. The four wall portions 37 of the second fixing member 22 are provided so that the first fixing member 21 contacts the surface of the case member 11 on the connector fitting portion 17 side.

  Next, the locking portion 71 of the insertion member 70 is locked and fixed to the engaging portion 72 of the second fixing member 22.

  Thus, the installation of the connection member 13 in the case member 11 is completed.

  Subsequently, the electronic component 24, a circuit board 50 on which a conductive pattern such as a copper foil (not shown) electrically connected to the electronic component 24 is mounted, and the lid member 12 are prepared.

  Here, the circuit board 50 is formed by forming a circuit pattern on an insulating substrate and mounting the electronic component 24 thereon. The circuit pattern may be formed by pattern printing using a conductive ink on an insulating substrate. Alternatively, the circuit pattern may be formed by coating a conductive material on an insulating substrate and then patterning the conductive material with a photolithography technique. Furthermore, the circuit pattern may be formed by attaching a conductive material previously punched into the circuit pattern on the insulating substrate.

  Next, the circuit board 50 is attached to the lid member 12. Further, the electronic component 24 and the like of the circuit board 50 are opposed to the case member 11, and the circuit board 50 and the lid member 12 are attached and fixed to the case member 11 via rubber packing or the like. Thus, the circuit board case 10 with electrical connector is completed.

(Function and effect)
Next, the effect of the case 10 for circuit boards with an electrical connector which concerns on embodiment of this invention is demonstrated. The circuit board case 10 with an electrical connector has a peripheral wall 15 ′ in which the connector fitting portion 17 stands in the depth direction of the case member 11, and the peripheral wall 15 ′ is a protrusion into which the protrusion 53 of the first fixing member 21 is inserted. The part insertion hole 80 and the projection part engagement hole 81 into which the projection part 53 inserted into the projection part insertion hole 80 is sent while changing the movement path in the peripheral wall 15 ′ are provided.

  According to such a configuration, when the first fixing member 21 is fitted and fixed to the connector fitting portion 17, first, the protrusion 53 of the first fixing member 21 is formed on the peripheral wall 15 ′ of the connector fitting portion 17. Is inserted into the protruding portion insertion hole 80. Next, the protruding portion 53 of the first fixing member 21 inserted into the protruding portion insertion hole 80 is sent into the protruding portion engaging hole 81 while changing its movement path in the peripheral wall 15 ′. For this reason, the movement path is changed after the protrusion 53 of the first fixing member 21 is inserted in the peripheral wall 15 ′, thereby effectively preventing the protrusion 53 from returning in the insertion direction. Accordingly, it is possible to satisfactorily suppress the first fixing member 21 from being detached from the connector fitting portion 17, and the fitting of the first fixing member 21 into the mounting hole 18 of the connector fitting portion 17 can be easily performed. Can be performed accurately. Further, when the protrusion 53 of the first fixing member 21 inserted into the protrusion insertion hole 80 is sent into the protrusion engaging hole 81 while changing its movement path in the peripheral wall 15 ′, the first fixing member 21 A space S4 that was not present when inserted into the mounting hole 18 of the peripheral wall 15 ′ is generated. Specifically, if the projecting portion 53 of the first fixing member 21 is sent into the projecting portion engaging hole 81 by changing the moving path downward in the case member 11 in the peripheral wall 15 ′, the first Above the fixing member 21, a space S4 that was not present at the time of insertion is generated. For this reason, the confirmation work that the first fixing member 21 is fitted into the connector fitting portion 17 at an accurate position only needs to be checked for the existence of the space S4, without using a sensor, It can be performed easily without requiring skill.

  As described above, the present invention is useful for a circuit board case with an electrical connector and an electronic unit including the same.

It is a mimetic diagram of a case for circuit boards with an electric connector in the state where a lid member concerning an embodiment of the present invention was removed. It is sectional drawing of the case for circuit boards with an electrical connector. It is a perspective view of a connection member. It is an enlarged view of the edge part of a 1st fixing member. It is an enlarged view of the edge part of the surrounding wall which comprises a connector fitting part. It is the front view seen from the case member inner side of the 1st fixing member inserted in the attachment hole of the surrounding wall which comprises a connector fitting part. FIG. 7 is a cross-sectional view taken along line I-I ′ of FIG. 6. It is the front view seen from the case member inner side of the 1st fixing member fixed by fitting in the attachment hole of the surrounding wall which comprises a connector fitting part. It is the II-II 'sectional view taken on the line of FIG. It is an enlarged view of the edge part of the surrounding wall which comprises the connector fitting part which concerns on another form. It is sectional drawing of the conventional electronic unit.

Explanation of symbols

10 Circuit board case with electrical connector
11 Case material
12 Lid member
13 Connection member
15, 15 'wall
17 Connector fitting part
18 Mounting hole
19 terminals
21 First fixing member
22 Second fixing member
23 engaging part
25 insertion hole
31 1st rod-shaped part
32 Second rod-shaped part
33 Plate part
35 insertion hole
36 Locking part
37 walls
52 Front stop
53 Projection
70 Insertion member
71 Locking part
72 engaging part
78 Contact surface
80, 80 'protrusion insertion hole
81, 81 ′, 81 ″ protrusion engaging hole

Claims (11)

A case member formed with a connector fitting portion for fitting with an electrical connector on the connection partner side;
A circuit board housed in the case member and mounted with an electronic component;
A lid member attached to the case member;
A connecting member that is housed in the case member and attached to the connector fitting portion to electrically connect the connection partner connector and the circuit board;
With
The connecting member is
A terminal provided with a first rod-shaped portion that is electrically connected to a terminal of the connection counterpart connector, and a second rod-shaped portion that is integrally formed with the first rod-shaped portion and extends toward the lid member;
A first fixing member that holds the first rod-like portion of the terminal and is fixed to the connector fitting portion of the case member to fix the terminal, and has a protrusion formed at the end;
An insertion hole is formed, and the second rod-shaped portion is inserted and held in the insertion hole and attached to the case member, whereby the terminal in the direction in which the first rod-shaped portion extends into the case member. A second fixing member for restricting movement of
With
The connector fitting portion has a peripheral wall standing in the depth direction of the case member, and the peripheral wall is inserted into a protrusion insertion hole into which the protrusion of the first fixing member is inserted, and the protrusion insertion hole. A circuit board case with an electrical connector, comprising: a protruding portion engaging hole into which the protruding portion is sent by changing a moving path in the peripheral wall. In the case for a circuit board with an electrical connector according to claim 1,
The protrusion engaging hole of the peripheral wall is fed by the protrusion of the first fixing member inserted into the protrusion insertion hole of the peripheral wall changing the movement path in the peripheral wall toward the bottom of the case member. Circuit board case with electrical connector provided at the position. In the case for a circuit board with an electrical connector according to claim 1,
The first fixing member is formed in a stepped shape at an end portion of the housing portion that is accommodated in the connector fitting portion of the case member, and is in contact with the connector fitting portion, and the first fixing member A circuit board case with an electrical connector, comprising: a front stopper for restricting movement of the connector in the direction of the connector fitting portion. In the case for a circuit board with an electrical connector according to claim 1,
An electrical connector in which an insertion member is inserted into a gap between the peripheral wall of the connector fitting portion and the first fixing member that is fed into the protrusion engagement hole of the peripheral wall and is locked by the protrusion Case for attached circuit board. In the circuit board case with an electrical connector according to claim 4,
A locking portion for locking to the other is formed on one of the contact surface of the first fixing member with respect to the insertion member and the contact surface of the insertion member with respect to the first fixing member. Case for circuit boards with electrical connectors. In the circuit board case with an electrical connector according to claim 4,
The circuit board case with an electrical connector, wherein the insertion member is made of an elastic material. In the circuit board case with an electrical connector according to claim 4,
A locking portion is formed at the end of the insertion member in the case member inner direction, and the locking portion of the insertion member is engaged with the case member outer end of the second fixing member. A circuit board case with an electrical connector in which an engaging portion to be fixed is formed. In the case for a circuit board with an electrical connector according to claim 1,
The second fixing member is provided with an engaging portion, the case member is provided with an engaging portion, and the engaging portion of the case member is engaged with the engaging portion of the second fixing member. A circuit board case with an electrical connector for restricting movement of the terminal in a direction in which the first rod-like portion extends into the case member. In the case for a circuit board with an electrical connector according to claim 8,
The second fixing member includes a plate portion provided with the insertion hole so as to penetrate in the thickness direction and extending in a direction intersecting with a direction in which the first rod-shaped portion extends into the case member. ,
The locking portion of the second fixing member is a case for a circuit board with an electrical connector provided at at least one end in the longitudinal direction of the plate portion. In the circuit board case with an electrical connector according to claim 9,
The second fixing member is formed so as to extend from the surface of the plate portion into the case member, and includes an electrical connector provided with a wall portion provided to contact the inner surface of the case member of the first fixing member Case for attached circuit board.   The electronic unit provided with the case for circuit boards with an electrical connector in any one of Claims 1-10.

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