JP2011150807A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coil pin capable of absorbing or alleviating a stress added on the coil pin. <P>SOLUTION: The coil pin 10 is provided with a first electric connection part 11 to be connected electrically with an electromagnetic valve, a first fixed part 15 fixed on a first electric connection part 11 side, a second electric connection part 12 to be connected electrically with a base plate, a second fixed part 16 fixed on a second electric connection part 12 side, and a first stress adjusting part 13 arranged between the first electric connection part 11 and the second electric connection part 12 and absorbing a stress. Further, the first stress adjusting part 13 is provided with a C-shaped ring part 13a and a pair of bent part 13b each connected with end parts of the ring part 13a so as to get elasticity in a three-dimensional direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a connector used for an electrical component, and more particularly to a coil pin for connecting a solenoid coil for driving an electromagnetic valve of a brake fluid pressure control unit and a substrate.

  Brake fluid pressure control units for automobiles and motorcycles include coils for solenoid valves used for fluid pressure circuit control, and substrates for controlling solenoid valves and the like. The coil of the electromagnetic valve and the substrate are electrically connected using a pair of coil pins.

  Such a coil pin is proposed as a connection element in International Publication No. 2009/071381 by ROBERT BOSCH GMBH. This will be described with reference to FIGS.

  As shown in FIG. 4, the connection element 110 is integrally formed from a flat metal plate as a whole. The connection element 110 is provided at one end of the connection element 110 and is electrically connected to the coil of the solenoid valve. The connection element 110 is provided at the other end of the connection element 110 and is electrically connected to the substrate. Part 112, a first stress adjustment part 113 and a second stress adjustment part 114. The first electrical connection unit 111 and the second electrical connection unit 112 are connected via the first stress adjustment unit 113 and the second stress adjustment unit 114. The first stress adjusting unit 113 is formed of an S-shaped flat plate material and absorbs stress applied to the connection element 110. A first fixing portion 115 is formed between the first electrical connection portion 111 and the first stress adjustment portion 113.

  A slit 111 a is formed in the first electrical connection portion 111, and the first electrical connection portion 111 is electrically connected to a coil wire (coil winding) of the electromagnetic valve 120. The coil of the solenoid valve 120 is sandwiched by the slit 111a. The first electric connecting portion 111 is further formed with a first holding portion 117a that is held and press-fitted by a jig when attached. A second holding portion 117b is formed between the first stress adjustment portion 113 and the second stress adjustment portion 114. A second fixing part 116 is formed between the second stress adjusting part 114 and the second holding part 117b.

  Next, the attachment process of the connection element 110 will be described. First, in order to connect the first electrical connection portion 111 side to the coil wire, the upper end portion of the first holding portion 117a is pressed by a jig. Thereby, the 1st electrical connection part 111 and the 1st fixing | fixed part 115 are press-fit in the connection part 124 of the coil of the solenoid valve 120, and the 1st electrical connection part 111 is connected with a coil wire. Next, in order to fix the second electrical connection portion 112 side to the housing, the lower end portion of the second holding portion 117b is pressed with a jig. As a result, the second fixing portion 116 is press-fitted into the mounting opening of the housing, and the connection element 110 is fixed to the housing. Finally, the second electrical connection portion 112 of the connection element 110 is press-fitted into the connection opening of the substrate in the housing, and the substrate and the connection element 110 are connected.

International Publication No. 2009/071381 Pamphlet

  However, when the connector such as the connection element 110 is attached to the coil wire and the substrate of the electromagnetic valve, the coil of the electromagnetic valve can be idled. Accordingly, when the coil wire is idle, stress is repeatedly applied in the vicinity of the fixed portion of the connection element 110 having relatively high rigidity.

Further, “even if the coil of the solenoid valve is fixed”, the stress is repeatedly moved in the vicinity of the fixing portion of the connection element 110 due to thermal contraction or thermal expansion of the resin housing.
In the structure of FIG. 4, this stress may not be completely absorbed or relaxed. As a result, there is a possibility that a repeated stress is applied to the coil wire and the wire is finally broken. Accordingly, an object of the present invention is to provide a connector that can absorb or relieve such stress.

  In order to solve the above-described problems, a connector of the present invention includes a first electrical connection portion that is electrically connected to a first member, a first fixing portion that is fixed on the first electrical connection portion side, A second electrical connecting portion that is electrically connected to two members, a second securing portion that is secured on the second electrical connecting portion side, and between the first electrical connecting portion and the second electrical connecting portion. And a first stress adjusting unit that absorbs stress, and the first stress adjusting unit has elasticity in a three-dimensional direction.

  The first stress adjusting unit includes any one of an Ω-shaped part, a C-shaped part, and a loop-shaped part. The first stress adjusting part includes a bent part that forms a predetermined angle with respect to the first electrical connection part and / or the second electrical connection part. The first stress adjusting portion includes an annular portion having a pair of end portions, and a pair of bent portions respectively connected to the pair of end portions of the annular portion, and the pair of bent portions are the first A predetermined angle is formed with respect to the electrical connection portion and / or the second electrical connection portion. The first fixed portion is connected to one of the pair of bent portions, and the second fixed portion is connected to the other of the pair of bent portions. The predetermined angle is between 45 degrees and 135 degrees, or the predetermined angle is about 90 degrees. The first member is a solenoid valve, and the second member is a substrate. The first fixing portion is press-fitted and fixed to the mounting portion on the first member side. The second fixing portion is press-fitted and fixed to the mounting portion on the second member side. The attachment portion on the second member side is a housing of the second member.

  According to the present invention, it is possible to prevent breakage of the first component and the second component due to damage and fatigue of the connector itself.

It is a front view of the coil pin of the embodiment of the present invention. It is a perspective view of the coil pin of FIG. It is sectional drawing which shows the attachment state of the coil pin of FIG. It is a perspective view of the conventional coil pin. It is a perspective view which shows the connection state to the coil wire of the solenoid valve of the coil pin of FIG.

  An embodiment in which a connector of the present invention is applied to a coil pin will be described with reference to the drawings. In addition, the coil pin which concerns on this embodiment electrically connects the coil wire of a solenoid valve, and the control board of a unit in the brake fluid pressure control unit mounted in a motor vehicle, a motorcycle, etc.

  As shown in FIGS. 1 and 2, the coil pin 10 is integrally formed from a flat metal plate as a whole. The coil pin 10 is provided at one end thereof and is electrically connected to the coil of the electromagnetic valve 20. The second electrical connection portion is provided at the other end of the coil pin 10 and is electrically connected to the substrate. 12 and a first stress adjusting unit 13 and a second stress adjusting unit 14. The first electrical connection unit 10 and the second electrical connection unit 12 are connected via the first stress adjustment unit 13 and the second stress adjustment unit 14.

  A first fixing portion 15 is formed between the first electrical connection portion 11 and the first stress adjustment portion 13. A slit 11 a is formed in the first electrical connection portion 11, and the first electrical connection portion 11 is electrically connected to the coil of the electromagnetic valve 20. The coil of the electromagnetic valve 20 is sandwiched by the slit 11a. The first electrical connecting portion 11 is further formed with a first holding portion 17a that is held and pressed by a jig when attached.

  Between the 1st stress adjustment part 13 and the 2nd stress adjustment part 14, when press-fitting the 2nd electrical connection part 12, the 2nd holding part 17b hold | maintained with a jig is formed. A second fixing portion 16 is formed between the second stress adjusting portion 14 and the second holding portion 17b, and the second fixing portion 16 contacts the housing of the unit to place the coil pin 10 in the housing 40 (FIG. Fix to 3).

  As shown in FIG. 2, the first stress adjusting unit 13 includes an annular portion 13 a, and the annular portion 13 a includes a loop shape, an Ω-shape, or a C-shape. The plane of the annular portion 13 a is arranged at a predetermined angle, for example, an angle of about 90 degrees with respect to the plane of the first fixing portion 15 and / or the second fixing portion 16. The predetermined angle can be adjusted according to the mounting position of the first stress adjusting unit 13, the direction of the stress applied to the first stress adjusting unit 13, and the like. For example, the predetermined angle is such that the plane of the annular portion 13a is preferably in an angle range of 45 to 135 degrees, more preferably 80 degrees with respect to the plane of the first fixing portion 15 and / or the second fixing portion 16. Each can be set to an angle range of 100 degrees.

  Furthermore, the 1st stress adjustment part 13 is comprised from a pair of bending part 13b connected to the both ends of the cyclic | annular part 13a, and a pair of terminal part 13c connected to a pair of bending part 13b. The plane of the pair of end portions 13c is at the predetermined angle with respect to the plane of the annular portion 13a, and the plane of the pair of annular portions 13a is flush with the first fixing portion 15 or the second fixing portion 16, respectively. Is formed. Further, both end portions 13c are connected to the first holding portion 17a and the second holding portion 17b, respectively.

  In the coil pin of the present embodiment, the first stress adjusting unit 13 is elastic when the stress is applied to the first fixing unit 15 and the second fixing unit 16 from the vertical direction in FIG. It can be deformed and absorbed and relaxed. Further, the first stress adjusting unit 13 is a stress that is twisted to the entire surface of the coil pin 10 when stress is applied from a direction perpendicular to the plane of the first fixing unit 15 or the second fixing unit 16. Even when is added, the first stress adjusting unit 13 can be elastically deformed and absorbed and relaxed. Therefore, the 1st stress adjustment part 13 is comprised by the structure which has the elasticity in a three-dimensional direction.

  As shown in the assembled state of the brake fluid pressure control unit of FIG. 3, the first electrical connection portion 11 of the pair of coil pins 10 is inserted from the attachment opening (attachment portion) of the connection portion 24 of the coil of the solenoid valve 20 to be coiled. In contact with the wire, the first fixing portion 15 of the coil pin 10 is fixed at the attachment opening of the connection portion 24. The electromagnetic valve 20 is disposed in the unit between the substrate housing 40 and the hydraulic block 50 in which the valve body of the electromagnetic valve 20 is disposed. Further, in a state where the coil pin 10 is mounted on the unit, the plane of the first annular portion 13a of the first stress adjusting unit is arranged in parallel with the plane of the substrate 30 and the bottom surface of the housing 40 as a whole.

  When the coil pin 10 is attached to the coil wire, the upper end portion of the first holding portion 17a is pressed by the jig on the first electric connecting portion 11 side, and the first electric connecting portion 11 and the first fixing portion 15 are connected to the electromagnetic valve 20. Is press-fitted into the connecting portion 24 of the coil. At this time, no stress is applied to the second electrical connection portion 12 side. Further, when the coil pin 10 is attached to the housing 40, the second electrical connection portion 12 side is pressed by the jig at the lower end portion of the second holding portion 17b, so that no stress is applied to the first electrical connection portion 11 side. . Thus, the structure of the coil pin 10 is configured such that the stress on one end side is not transmitted to the other end side when the coil pin 10 is attached.

  Since the coil 26 of the electromagnetic valve 20 is only fixed to the housing 40 via the coil pin 10 in a state in which the unit is mounted on the vehicle after the brake hydraulic unit is assembled, various vibrations, operation of the electromagnetic valve, etc. The coil wire continuously moves. Since the coil pin 10 itself is made of a metal material having relatively high rigidity, stress is applied to the coil pin 10 from the first fixing portion physically connected to the coil wire or the second fixing portion physically connected to the housing.

  Therefore, the coil pin 10 according to the present embodiment includes the first stress adjusting unit that has elasticity in the three-dimensional direction, thereby preventing the coil wire of the electromagnetic valve 20 from being broken or from being poorly contacted or from being broken due to metal fatigue of the coil pin 10 itself. can do.

  Further, as shown in FIG. 3, a damper can be constituted by the silicon ball 60 to absorb and relax the stress to the coil pin 10 generated by the vibration of the electromagnetic valve. The silicon ball 60 is disposed between the ribs 40 a and 40 b formed in the housing 40 and the electromagnetic valve housing 22.

10 Coil pin (connector)
DESCRIPTION OF SYMBOLS 11 1st electrical connection part 12 2nd electrical connection part 13 1st stress adjustment part 13a Annular part 13b Bending part 13c End part 14 2nd stress adjustment part 15 1st fixing | fixed part 16 2nd fixing | fixed part 17a 1st holding | maintenance part 17b 1st 2 Holding part 20 Solenoid valve (first member)
30 Substrate 40 Housing (second member)

Claims (12)

A first electrical connection part electrically connected to the first member, a first fixing part fixed on the first electrical connection part side, and a second electrical connection electrically connected to the second member A first fixing portion that is provided between the first electric connecting portion and the second electric connecting portion, and absorbs stress. In a connector comprising:
The first stress adjusting part is a connector having elasticity in a three-dimensional direction.   The connector according to claim 1, wherein the first stress adjusting portion includes any one of an Ω-shaped portion, a C-shaped portion, and a loop-shaped portion. The connector according to claim 1 or 2,
The first stress adjusting portion includes a bent portion that forms a predetermined angle with respect to the first electrical connection portion and / or the second electrical connection portion. The connector according to claim 1 or 2,
The first stress adjusting portion includes an annular portion having a pair of end portions, and a pair of bent portions respectively connected to the pair of end portions of the annular portion, and the pair of bent portions are the first A connector that forms a predetermined angle with respect to the electrical connection portion and / or the second electrical connection portion. The connector according to claim 4,
The connector, wherein the first fixed portion is connected to one of the pair of bent portions, and the second fixed portion is connected to the other of the pair of bent portions.   6. The connector according to claim 3, wherein the predetermined angle is between 45 degrees and 135 degrees.   The connector according to claim 6, wherein the predetermined angle is about 90 degrees.   The connector according to any one of claims 1 to 7, wherein the first member is a solenoid valve.   The connector according to any one of claims 1 to 8, wherein the second member is a substrate.   10. The connector according to claim 1, wherein the first fixing portion is press-fitted and fixed to an attachment portion on the first member side. 11.   11. The connector according to claim 1, wherein the second fixing portion is press-fitted and fixed to an attachment portion on the second member side.   The connector according to claim 11, wherein the attachment portion on the second member side is a housing of the second member.

Images