JP4861055B2 - connector - Google Patents

Description

  The present invention relates to a connector fixed to a printed wiring board.

  The connector mounted on the printed wiring board fixes the housing to the printed wiring board, and fixes the terminals mounted on the housing onto the printed wiring board by soldering. It is necessary to fix this connector to the printed wiring board at an accurate position of the printed wiring board in order to securely join the terminal to the conductor pattern on the printed wiring board, and to prevent the terminal from coming off after soldering. The fixing itself must be strong to prevent wobbling when the mating connector is inserted or removed.

In order to solve this type of problem, various connectors have been used (see, for example, Patent Document 1). This type of connector is fixed by inserting a pilot pin standing from the bottom surface of the housing into a guide hole provided on the printed wiring board side. Further, the connector is fixed by an adhesive applied between the bottom surface of the housing and the printed wiring board.
Japanese Patent Laid-Open No. 8-45582

  The connector described in Patent Document 1 and the like described above is completely fixed to the printed wiring board with pilot pins and an adhesive. For this reason, the work process increases due to the use of an adhesive, resulting in a decrease in productivity, and an excessive load is applied to the joint between the terminal and the printed wiring board during thermal shock due to the difference in thermal expansion coefficient between the connector and the printed wiring board. There was a fear. Further, if the connector receives a force when the mating connector is inserted / removed, the force is concentrated on the joint. That is, there is a possibility that the durability of the joint portion is lowered and the electrical connection is adversely affected.

  Accordingly, an object of the present invention is to provide a connector that can be fixed without being bonded to a printed wiring board and that is difficult to apply force to the joint between the connector terminal and the printed wiring board during thermal shock or when a mating connector is inserted or removed. There is.

In order to solve the above problems and achieve the object, a connector according to the present invention according to claim 1 is a connector including a housing mounted on a printed wiring board and terminals held by the housing. Walls erected on both sides of the mating connector fitting opening with respect to the printed wiring board allow the wall between the terminal holding portion of the housing and the joint portion of the terminal with the printed wiring board. When the connector is mounted on the printed wiring board, the slit is subjected to a force in a direction away from the printed wiring board. When it is deformed and no longer receives the force, it returns to its original shape .

  A connector according to a second aspect of the present invention is the connector according to the first aspect, wherein one of the bottom surface of the housing and the printed wiring board has a boss that stands upright, and the other has an outer periphery of the boss. It is characterized by having a hole for loose insertion with a gap in between.

  A connector according to a third aspect of the present invention is the connector according to the second aspect, wherein the housing is detached from the printed wiring board by contacting the opening edge of the loose insertion hole at the tip of the boss. It is characterized in that a locking portion for regulating the above is provided.

A connector according to a fourth aspect of the present invention is the connector according to the second or third aspect, wherein the wall of the housing has a first fixing part attached to the mating connector fitting opening side of the slit, An elastic deformation portion further comprising a fixing member having a second fixing portion attached to the printed wiring board, wherein the fixing member is elastically deformable between the first fixing portion and the second fixing portion. When the connector is mounted on the printed wiring board, the fixing member is displaced by elastic deformation when the connector receives a force in a direction away from the printed wiring board , and the fixing member is not subjected to the force. The connector is returned to a contact state with the printed wiring board by an elastic restoring force .

  The connector according to a fifth aspect of the present invention is the connector according to the fourth aspect, wherein the elastically deforming portion of the fixing member is formed to have a length that can follow the range in which the attitude of the housing can be changed. It is characterized by being.

  A connector according to a sixth aspect of the present invention is the connector according to any one of the first to fifth aspects, wherein the cover portion that covers between the terminal holding portion and the joint portion of the terminal is provided. It is characterized by having prepared.

  According to the connector of the present invention described in claim 1, the housing includes the slit. For this reason, when an attempt is made to pull out the mating connector obliquely upward with respect to the printed wiring board, if the force is applied to the mating connector fitting opening side in a direction away from the printed wiring board, the slit exerts a force. In response, it is elastically deformed in the direction in which the slit expands. When the force is not applied, the slit enlarged by the elastic restoring force of the housing adjacent to the slit returns to the original shape.

  According to the connector of the present invention described in claim 2, one of the housing and the printed wiring board is provided with a boss, and the other is provided with a loose insertion hole. For this reason, when trying to pull the mating connector diagonally upward with respect to the printed wiring board, if a force is applied in the direction away from the printed wiring board on the mating connector fitting opening side, Displace the clearance regulated by the hole. Thereafter, the boss abuts against the inner wall of the loose insertion hole, the internal wall of the loose insertion hole receives stress, the displacement of the housing is suppressed, and the wall is excessively bent to prevent the slit from breaking.

  According to the connector of the present invention described in claim 3, the locking portion is provided at the tip of the boss. For this reason, when trying to pull the printed wiring board diagonally upward with respect to the printed circuit board when the mated connector is detached, if the force is received in the direction away from the printed wiring board on the mating connector fitting opening side, The displacement of the housing is suppressed by abutting against the opening edge of the loose insertion hole.

  According to the connector of this invention described in Claim 4, the fixing member which provided the elastic deformation part is provided. For this reason, when an attempt is made to pull the mating connector diagonally upward with respect to the printed wiring board, if the force is applied to the mating connector fitting opening side in the direction away from the printed wiring board, the fixing member is elastic. Displacement due to deformation. Further, when the force in the separating direction is not received, the contact with the printed wiring board is restored by the elastic restoring force of the fixing member. The fixing member may be any material such as metal or synthetic resin as long as it has elasticity.

  According to the connector of the present invention as set forth in claim 5, the elastically deforming portion of the fixing member has a length that can be followed within a range in which the attitude of the housing can be changed. For this reason, when trying to pull out the mating connector diagonally upward with respect to the printed wiring board, even if a force is applied to the mating connector fitting opening side in the direction away from the printed wiring board, the displacement of the housing The minute portion can be displaced, and the fixed portion can stably maintain the fixed state.

  According to the connector of this invention described in Claim 6, the cover part which covers between the terminal holding | maintenance part and a junction part is provided. For this reason, the terminal is always covered and the joint is pressed.

  As described above, according to the first aspect of the present invention, the housing includes the slit. For this reason, when an attempt is made to pull the mating connector diagonally upward with respect to the printed wiring board, the slit expands when a force is applied in the direction away from the printed wiring board on the mating connector fitting opening side. Elastically deforms in the direction and resists stress in the direction of lifting from the printed wiring board. Further, when the mating connector is detached, the slit enlarged by the elastic restoring force of the housing adjacent to the slit returns to the original shape. Therefore, even if a force is applied to the opening side in a direction away from the printed wiring board, it is difficult to apply a force to the joint portion between the terminal and the printed wiring board, and the durability of the joint portion is improved and electrical connection is made. Can be reliably maintained.

  According to the second aspect of the present invention, one of the housing and the printed wiring board includes a boss, and the other includes a loose insertion hole. For this reason, when trying to pull the mating connector diagonally upward with respect to the printed wiring board, if a force is applied in the direction away from the printed wiring board on the mating connector fitting opening side, Displace the clearance regulated by the hole. Thereafter, the boss abuts against the inner wall of the loose insertion hole, the internal wall of the loose insertion hole receives stress, the displacement of the housing is suppressed, and the wall is excessively bent to prevent the slit from breaking. Therefore, even if a force is applied to the opening side in a direction away from the printed wiring board, it is difficult to apply a force to the joint portion between the terminal and the printed wiring board, and the durability of the joint portion is improved and electrical connection is made. Can be reliably maintained.

  According to the third aspect of the present invention, a locking portion is provided at the tip of the boss. For this reason, when trying to pull the printed wiring board diagonally upward with respect to the printed circuit board when the mated connector is detached, if the force is received in the direction away from the printed wiring board on the mating connector fitting opening side, The displacement of the housing is suppressed by abutting against the opening edge of the loose insertion hole. Therefore, even if a force is applied to the opening side in a direction away from the printed wiring board, it is difficult to apply a force to the joint portion between the terminal and the printed wiring board, and the durability of the joint portion is improved and electrical connection is made. Can be reliably maintained.

  The present invention according to claim 4 includes a fixing member provided with an elastic deformation portion. For this reason, when an attempt is made to pull the mating connector diagonally upward with respect to the printed wiring board, if the force is applied to the mating connector fitting opening side in the direction away from the printed wiring board, the fixing member is elastic. Displacement due to deformation. Further, when the force in the separating direction is not received, the contact with the printed wiring board is restored by the elastic restoring force of the fixing member. Therefore, even if a force is applied to the opening side in a direction away from the printed wiring board, it is difficult to apply a force to the joint portion between the terminal and the printed wiring board, and the durability of the joint portion is improved and electrical connection is made. Can be reliably maintained.

  According to the fifth aspect of the present invention, the elastically deforming portion of the fixing member has a length that can be followed within a range in which the posture of the housing can be changed. For this reason, when trying to pull out the mating connector diagonally upward with respect to the printed wiring board, even if a force is applied to the mating connector fitting opening side in the direction away from the printed wiring board, the displacement of the housing Is an elastic deformation region of the fixed portion, and the fixed portion can stably maintain the fixed state. Therefore, even if a force is applied to the opening side in a direction away from the printed wiring board, it is difficult to apply a force to the joint portion between the terminal and the printed wiring board, and the durability of the joint portion is improved and electrical connection is made. Can be reliably maintained.

  The present invention according to claim 6 includes a cover portion that covers a space between the terminal holding portion and the joint portion. For this reason, the terminal is always covered and the joint is pressed. Therefore, even if a force is applied to the opening side in a direction away from the printed wiring board, it is difficult to apply a force to the joint portion between the terminal and the printed wiring board, and the durability of the joint portion is improved and electrical connection is made. Can be reliably maintained.

  A connector according to a first embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 2 and 3, the connector 1 according to the first embodiment of the present invention includes a housing 2, a terminal 3, and a fixing member 18.

  The housing 2 is made of an insulating synthetic resin. The housing 2 accommodates the terminals 3 as shown in FIGS. 2 and 3 and is attached to the printed wiring board 4 as shown in FIGS. 1, 2, and 3. As shown in FIGS. 1 and 2, the printed wiring board 4 includes a substrate 5 made of an insulating synthetic resin and a conductor pattern 6 formed on the surface of the substrate 5. The conductor pattern 6 is made of, for example, a conductive metal such as copper and is formed in a thin film shape. The conductor pattern 6 is affixed to the surface of the substrate 5.

  As shown in FIG. 2, the terminal 3 is accommodated in the housing 2, and is electrically connected to the conductor pattern 6 when the housing 2 is attached to the printed wiring board 4.

  As shown in FIGS. 1 and 3, the housing 2 includes a pair of long walls 7 and a pair of connecting walls 8 that connect both ends in the longitudinal direction of the long walls 7 (corresponding to the walls described in the claims). And is formed in a box shape. The pair of long walls 7 are opposed to each other with a space therebetween. The pair of long walls 7 are parallel to each other. The pair of connecting walls 8 are opposed to each other with a space therebetween. The pair of connecting walls 8 are parallel to each other. The housing 2 accommodates the terminal 3 in a space K surrounded by the pair of long walls 7 and the pair of connecting walls 8. The opening 24 of the housing 2 surrounded by the pair of long walls 7 and the pair of connecting walls 8 is a mating connector fitting opening.

  As shown in FIG. 2, the pair of connecting walls 8 are erected from the printed wiring board 4 and positioned on both sides of the opening 24 of the housing 2, and the terminal holding portions of the housing 2 (the terminals 3 are held by the housing 2). The slit 11 is provided between the place 9) and the joint 10 of the terminal 3 to the printed wiring board 4. The slit 11 has a shape that opens to the printed wiring board 4 side and extends in a direction orthogonal to the printed wiring board 4. The slit 11 makes the connecting wall 8 flexible so that the posture of the housing 2 can be changed.

  Of the pair of long walls 7, one bottom wall 7 is positioned on the bottom side of the housing 2, and the bottom surface 12 superimposed on the printed wiring board 4 is a boss standing on the bottom surface 12 as shown in FIGS. 2 and 4. 13 is provided. Further, as shown in FIGS. 2 and 4, the printed wiring board 4 includes a hole 14 into which the boss 13 is loosely inserted (inserted in a state having a sufficient space). A locking portion 15 having an outer diameter E smaller than the inner diameter D of the loose insertion hole 14 is provided at the tip of the boss 13.

  As shown in FIGS. 1, 3, 5, and 6, the fixing member 18 includes a first fixing portion 16 that is attached to the opening 24 side of the slit 11 of the pair of connecting walls 8 of the housing 2, and printing. A second fixing portion 17 attached to the wiring board 4 and an elastic deformation portion 19 are provided. The elastic deformation portion 19 is disposed between the first fixing portion 16 and the second fixing portion 17 and connects these fixing portions 16 and 17 to each other. Since the elastic deformation region of the elastic deformation portion 19 is longer than the clearance C between the bottom surface 12 and the printed wiring board 4, the elastic deformation portion 19 can follow the range in which the posture of the housing 2 can be changed by elastic deformation, and the displacement of the housing 2 Minutes can be displaced. For this reason, even if the housing 2 is displaced, the fixed portions 16 and 17 can be maintained in a fixed state.

  When attaching the connector 1 having the above-described configuration to the printed wiring board 4, first, the bottom surface 12 of the housing 2 is attached to the printed wiring board 4. At that time, as shown in FIG. 4, the boss 13 is inserted into the loose insertion hole 14.

  Further, as shown in FIGS. 1, 3, 5, and 6, the pair of connecting walls 8 are attached to the printed wiring board 4 by the fixing member 18. The first fixing portion 16 of the fixing member 18 is attached to the outer surface 20 positioned outside the housing 2 of both the pair of connecting walls 8 on the opening 24 side of the slit 11. The second fixing portion 17 of the fixing member 18 is attached to the printed wiring board 4.

  The connector 1 fixed to the printed wiring board 4 receives a force in a direction in which the connector 1 is separated from the printed wiring board 4 when the mating connector is inserted or removed. Then, the slit 11 receives a force, and the housing 2 is elastically deformed in the direction in which the slit 11 expands according to the force, as shown in FIG. Further, the housing 2 is displaced by a clearance C which is regulated by a gap between the boss 13 and the loose insertion hole 14. Further, it is displaced by elastic deformation of the fixing member 18. The elastic deformation region of the elastic deformation portion 19 of the fixing member 18 is longer than the clearance C, and can follow in a range in which the posture of the housing 2 can be changed by elastic deformation. For this reason, since it is elastically deformed and can be displaced more than the clearance C and the displacement of the housing 2 can be displaced, the fixing portions 16 and 17 are stably attached to the housing 2 and the printed wiring board 4. Will remain.

  Thereafter, when a certain force or more is applied, the boss 13 and the inner wall 21 of the loose insertion hole 14 come into contact with each other as shown in FIG. Subsequently, as shown in FIGS. 8 and 9, the locking portion 15 of the boss 13 and the opening edge 22 of the loose insertion hole 14 come into contact with each other. Regulate dropout.

  When the connector 1 is not subjected to a force after the mating connector has been inserted and removed, the housing 2 returns to the contact state with the printed wiring board 4 by the elastic restoring force of the fixing member 18 as shown in FIG. Moreover, as shown in FIG. 2, the slit 11 expanded by the elastic restoring force of the housing 2 returns to the original shape.

  According to the present embodiment, the housing 2 includes the slit 11. For this reason, when an attempt is made to pull the printed wiring board 4 obliquely upward when the mating connector is detached, the slit 11 expands when a force is applied in the direction away from the printed wiring board 4 on the opening 24 side. Elastically deforms in the direction. When no force is received, the slit 11 enlarged by the elastic restoring force of the housing 2 adjacent to the slit 11 returns to its original shape. Therefore, even if a force is applied to the opening 24 in the direction away from the printed wiring board 4, it is difficult to apply a force to the joint 10 between the terminal 3 and the printed wiring board 4, and the durability of the joint 10 is improved. The electrical connection can be reliably maintained.

  The bottom surface 12 of the housing 2 includes bosses 13, and the printed wiring board 4 includes loose insertion holes 14. For this reason, when an attempt is made to remove the mating connector obliquely upward with respect to the printed wiring board 4, if a force is applied in the direction away from the printed wiring board 4 toward the opening 24, the boss 13 is loosely inserted. The clearance C which is regulated by the hole 14 is displaced. Thereafter, the boss 13 comes into contact with the inner wall 21 of the loose insertion hole 14, the internal wall 21 of the loose insertion hole 14 receives stress, the displacement of the housing 2 is suppressed, the pair of connecting walls 8 are excessively bent, and the slit 11 is broken. To prevent. Therefore, even if a force is applied to the opening 24 in the direction away from the printed wiring board 4, it is difficult to apply a force to the joint 10 between the terminal 3 and the printed wiring board 4, and the durability of the joint 10 is improved. The electrical connection can be reliably maintained.

  A locking portion 15 is provided at the tip of the boss 13. For this reason, when an attempt is made to pull the printed wiring board 4 diagonally upward when the mating connector is detached, if the force in the direction away from the printed wiring board 4 is applied to the opening 24 side, the locking portion 15 is The displacement of the housing 2 is suppressed by coming into contact with the opening edge 22 of the loose insertion hole 14. Therefore, even if a force is applied to the opening 24 in the direction away from the printed wiring board 4, it is difficult to apply a force to the joint 10 between the terminal 3 and the printed wiring board 4, and the durability of the joint 10 is improved. The electrical connection can be reliably maintained.

  The fixing member 18 is provided with an elastic deformation portion 19. For this reason, when an attempt is made to pull the printed wiring board 4 obliquely upward when the mating connector is detached, the fixing member 18 is elastic when receiving a force in the direction away from the printed wiring board 4 toward the opening 24. Displacement due to deformation. Further, when the force in the separating direction is not received, the contact with the printed wiring board 4 is restored by the elastic restoring force of the fixing member 18. Therefore, even if a force is applied to the opening 24 in the direction away from the printed wiring board 4, it is difficult to apply a force to the joint 10 between the terminal 3 and the printed wiring board 4, and the durability of the joint 10 is improved. The electrical connection can be reliably maintained.

  The elastically deforming portion 19 of the fixing member 18 has a length that can follow the range in which the attitude of the housing 2 can be changed. For this reason, when an attempt is made to pull the mating connector obliquely upward with respect to the printed wiring board 4, the displacement of the housing 2 is affected even if a force is applied in the direction away from the printed wiring board 4 toward the opening 24. The minutes can be displaced, and the fixing portions 16 and 17 can stably maintain the fixed state. Therefore, even if a force is applied to the opening 24 in the direction away from the printed wiring board 4, it is difficult to apply a force to the joint 10 between the terminal 3 and the printed wiring board 4, and the durability of the joint 10 is improved. The electrical connection can be reliably maintained.

  Next, a connector according to a second embodiment of the present invention will be described with reference to FIGS. Note that the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 10, 11, and 12, the connector 1 of the present embodiment includes a cover portion 23 that covers the space between the terminal holding portion 9 and the joint portion 10 on the other long wall 7 of the pair of long walls 7. I have. When the connector 1 is attached to the printed wiring board 4, the cover portion 23 covers the terminal 3 and further presses the joint portion 10.

  In this embodiment, the cover part 23 which covers between the terminal holding part 9 and the junction part 10 is provided. For this reason, the terminal 3 is always covered and the joining part 10 is pressed. Therefore, similarly to the first embodiment described above, it is difficult to apply a force to the joint portion 10 between the terminal 3 and the printed wiring board 4, and the durability of the joint portion 10 can be improved and the electrical connection can be reliably maintained. .

  In the second embodiment described above, the cover portion 23 is provided integrally with the other long wall 7 of the pair of long walls 7. However, according to the present invention, the cover 1 may be separated from the connector 1 and may be fixed to the printed wiring board 4.

1 is a perspective view of a connector according to a first embodiment of the present invention. It is sectional drawing which follows the II-II line | wire in FIG. It is a front view of the connector shown by FIG. It is a perspective view which expands and shows the principal part in the state where the connector shown by FIG. 1 was opposed to the printed wiring board. It is a perspective view which expands and shows the cross section which follows the VV line in FIG. FIG. 3 is a cross-sectional view illustrating a state in which the connector illustrated in FIG. 2 is displaced by receiving a force. FIG. 3 is a cross-sectional view showing a state in which the connector shown in FIG. 2 is further displaced by receiving a force and the boss and the inner wall of the loose insertion hole are in contact with each other. FIG. 3 is a cross-sectional view showing a state in which the connector shown in FIG. 2 is further displaced by receiving a force and a locking part of the boss and an opening edge of the loose insertion hole are in contact with each other. FIG. 4 is a front view showing a state in which the connector shown in FIG. 3 is further displaced by receiving a force and a locking part of the boss and an opening edge of the loose insertion hole are in contact with each other. It is a perspective view of the connector concerning the 2nd Embodiment of this invention. It is sectional drawing which follows the XI-XI line in FIG. FIG. 11 is a rear view of the connector shown in FIG. 10.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connector 2 Housing 3 Terminal 4 Printed wiring board 8 A pair of connection wall 9 Terminal holding part 10 Joining part 11 Slit 12 Bottom face 13 Boss 14 Free insertion hole 15 Locking part 16 1st fixing | fixed part 17 2nd fixing | fixed part 18 fixation Member 19 Elastic deformation portion 23 Cover portion 24 Opening portion C Clearance

Claims (6)

In a connector including a housing mounted on a printed wiring board and terminals held in the housing,
Walls erected on both sides of the mating connector fitting opening with respect to the printed wiring board of the housing are between the terminal holding portion of the housing and the joint portion of the terminal with the printed wiring board. Comprising a slit that allows the wall to be flexible and change the attitude of the housing ;
The slit is deformed when the connector receives a force in a direction away from the printed wiring board when the connector is mounted on the printed wiring board, and returns to the original shape when the force is not received.
A connector characterized by that.   2. The connector according to claim 1, wherein one of the bottom surface of the housing and the printed wiring board includes a boss standing upright, and the other includes a hole through which the boss is loosely inserted.   The connector according to claim 2, wherein a locking portion is provided at a tip portion of the boss so as to abut against an edge of the opening of the loose insertion hole and restrict the housing from falling off the printed wiring board. A fixing member having a first fixing portion attached to the opposite connector fitting opening side of the slit of the wall of the housing, and a second fixing portion attached to the printed wiring board;
The fixing member is provided with an elastically deformable elastically deformable portion between the first fixed portion and the second fixed portion,
When the connector is mounted on the printed wiring board, the fixing member is displaced due to elastic deformation when the connector receives a force in a direction away from the printed wiring board. 4. The connector according to claim 2, wherein the connector is returned to a contact state with the printed wiring board by force .   The connector according to claim 4, wherein the elastically deforming portion of the fixing member is formed to have a length that can follow the range in which the posture of the housing can be changed.   The connector according to any one of claims 1 to 5, further comprising a cover portion that covers a space between the terminal holding portion and the joint portion of the terminal.

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