JP5949970B1 - Electrical connector - Google Patents

Abstract

An electrical connector capable of improving contact reliability by reliably sliding a short-circuit terminal to a detection terminal. A first electrical connector (100) includes an inner housing (110) having a lock arm (113) that is elastically bent and then returned to be engaged with the outer housing (210) when fitted, and a detection terminal of the outer housing (210). And a short-circuiting terminal 120 for detecting electrical connection with 220. The second short-circuit terminal 150 includes a second contact portion 151 that contacts the second detection terminal 222 and a second elastic portion 152 that moves the second contact portion 151 forward and backward in conjunction with the bending of the lock arm 113. Yes. The raised portion 111e is brought into a non-contact state with the second detection terminal 222 at the retracted position S1 where the second contact portion 151 is ridden by the advancement of the second contact portion 151, and returned to the original position from the retracted position S1. The returning second contact portion 151 is slid on the second detection terminal 222. [Selection] Figure 11

Description

  The present invention relates to an electrical connector provided with a terminal for detecting electrical connection with a mating electrical connector.

  It is important for the electrical connector to transmit an electrical signal by fitting firmly between the male side and the female side. In particular, in an electrical connector used for a safety device, if an electrical signal cannot be transmitted due to an incomplete fitting state, a malfunction occurs in the operation of the safety device. Therefore, the electrical connector used in the safety device includes a short-circuit terminal that detects electrical connection with the detection terminal of the mating electrical connector in addition to the original signal connection terminal. Furthermore, in order to ensure contact between the detection terminal and the short-circuit terminal, the electrical connector used in the safety device is connected to the mating electrical connector when mated with the mating electrical connector. A mechanism for self-cleaning, called wiping, of the detection terminal is formed in conjunction with the lock arm to be locked. As such an electrical connector, for example, the one described in Patent Document 1 is known.

  As shown in FIGS. 30 and 31, the electrical connector described in Patent Document 1 detects the electrical connection when the female contact 1007 for detecting the female connector contacts the male contact 1072 for detecting the male connector. is there.

A contact portion 1034 that is in contact with the male contact 1072 for detection is formed at the distal end portion 1033 of the collision spring piece 1021 for detection. The detection male contact 1072 has a contact surface 1075 with which the contact portion 1034 contacts.
In the detection female contact 1007, the detection collision spring piece 1021 is elastically deformed so that a gap GP is formed between the contact portion 1034 and the contact surface 1075 when the contact portion 1034 faces the contact surface 1075. At this time, an interference portion 1050 that physically interferes with the collision spring piece 1021 for detection is formed.

  When the collision spring piece for detection 1021 and the male contact for detection 1072 are in contact with each other, until a distal end portion 1033 of the collision spring piece for detection 1021 comes into contact with the inclined surface 1050a of the interference section 1050, it is pressed by a lock arm not shown. Displaces linearly. At this time, the distal end portion 1033 is displaced in a substantially arc shape so as to slide on the inclined surface 1050 a along the inclined surface 1050 a of the interference portion 1050.

  When the female connector and the male connector are properly fitted and the lock arm is released, the tip portion 1033 of the detection collision spring piece 1021 moves away from the inclined surface 1050a of the interference portion 1050, and the detection collision. An attempt is made to return linearly toward the original position by the spring restoring force of the spring piece 1021. The locus U1 at this time is indicated by a two-dot chain line. The contact portion 1034 of the distal end portion 1033 starts to be restored along the locus U1 and soon collides with the contact surface 1075 of the connection portion 1072b of the detection male contact 1072 obliquely.

  When the contact portion 1034 collides with the contact surface 1075 at an angle, the contact portion 1034 attempts to restore the contact surface 1075 while making contact with the contact surface 1075 after the collision. And the normal spring pieces for detection (not shown) move in the parallel direction. Then, by this restoration, the contact portion 1034 slides with respect to the contact surface 1075 to perform wiping.

JP 2013-175326 A

  In the electrical connector described in Patent Document 1, the distal end portion 1033 of the collision spring piece 1021 for detection is moved obliquely with respect to the contact surface 1075 by laterally moving in the parallel direction while moving in the height direction by the interference portion 1050. Colliding. However, if the distance GP is large when the contact portion 1034 is displaced toward the original position or the spring property of the collision spring piece 1021 for detection is strong, the locus when the contact portion 1034 returns to the original position. May become unstable, and a wiping effect cannot be expected. In particular, when the contact portion 1034 moves in the parallel direction while moving through the gap GP and directly returns to the original position, the contact portion 1034 does not slide on the contact surface 1075. The wiping effect by 1034 cannot be obtained.

  Therefore, there is a possibility that the detection collision spring piece 1021 may be mistaken for the non-contact state even though the detection collision spring piece 1021 is in contact with the detection male contact 1072.

  Then, an object of this invention is to provide the electrical connector which can improve contact reliability by sliding terminals reliably.

The electrical connector of the present invention includes a first housing, a lock arm that returns after being elastically bent when the first housing and the second housing are fitted, and is locked to the second housing; A first short-circuit terminal and a second short-circuit terminal electrically connected to each of the first detection terminal and the second detection terminal provided in the second housing ; the first short-circuit terminal; (2) In a direction in which the short-circuiting terminals that support the base ends of the short-circuiting terminals and have a base portion fixed to the first housing, and the first housing and the second housing are fitted to each other A terminal displacement mechanism for displacing the second short-circuiting terminal, wherein the first short-circuiting terminal has a first contact portion that slides on the first detection terminal during the fitting, and the second shorting terminal, the second detection terminal A second contact portion for tactile, said in conjunction with the deflection of the lock arm elastically deformed, and an elastic portion which displaces in a direction for fitting the second contact portion on the other, the terminal displacement mechanism, In the stage before the first housing is fitted to the second housing, the second short-circuiting terminal is provided with a raised portion, and the elastic portion is elastically deformed in conjunction with the bending of the lock arm. The elastic part is elastically deformed, and the second contact part rides on the raised part to be in a non-contact state with the second detection terminal, and the first housing is At the stage after the lock arm is returned and locked to the second housing after being engaged with the housing, the second short-circuiting terminal is returned to the original state by the elastic portion. down contact portion from the ridge And by, characterized in that a state where the second contact portion is in contact with the second detection terminal.

According to the electrical connector of the present invention, the elastic part is elastically deformed in conjunction with the flexure of the lock arm, and the second short-circuiting terminal is the raised part in the stage before the first housing is fitted to the second housing. By being on the top, the second detection terminal is brought into a non-contact state. Next, in a stage after the first housing is fitted with the second housing, the second short-circuiting terminal comes into contact with the second detection terminal by descending from the raised portion. Therefore, when the second short-circuiting terminal riding on the raised portion descends from the raised portion and comes into contact with the second detection terminal, the second short-circuited terminal can be slid onto the first short-circuited terminal.

It is preferable that the raised portion has an inclined surface that raises and lowers the second contact portion. When the second short-circuiting terminal rides on or off the raised portion, it can be performed without being caught by the step due to the raised portion.

The inclined surface is preferably a flat surface. Since the inclined surface is formed as a flat surface, the second contact portion can be smoothly advanced and retracted.

The inclined surface is preferably an arc surface bulging outward. By making the inclined surface into an arc surface, the inclination becomes gentler as the second contact portion of the second short-circuiting terminal climbs than the flat surface, so that the contact portion is greatly advanced with a slight opening of the elastic portion. be able to. Therefore, the second contact portion can be easily advanced.

It is desirable that a step portion is formed on the inclined surface. When the second contact portion advances, the stepped portion can be advanced vigorously and can be climbed on the latter half of the inclined surface.

It is preferable that the raised portion is disposed on the side of the passage into which the second detection terminal is inserted, and the upper surface of the raised portion is formed higher than the thickness of the second detection terminal.
By such ridges in are formed, even in a position where the second detection terminal contacts located on a side of the second shorting terminal, the height direction, the second shorting terminal The position can be higher than the first short-circuit terminal.

It is preferable that the elastic portion is formed in an inverted V shape or an inverted U shape, and the second contact portion is provided at a tip of the elastic portion.
Since the elastic portion is formed in an inverted V shape or an inverted U shape, when the lock arm is bent, the elastic portion is opened in conjunction with the bending, and the second contact portion at the tip is advanced. Or the second contact portion can be retracted by reducing the opening of the elastic portion.

It is desirable to further include a protection part that regulates the degree of bending of the elastic part due to contact between the second contact part and the second detection terminal.
It can prevent that an elastic part will be plastically deformed because a protection part regulates the bending degree of an elastic part.

The raised portion is preferably formed integrally with the first housing.
Since the raised portion is formed as a part of the first housing, the raised portion can be formed together when the first housing is formed.

Before SL ridges, extends toward the second contact portion from said base portion, it is desirable that the tip is formed by folding back.
Even if the raised portion is provided on the base portion, the second short-circuiting terminal can be lifted or lowered.

  The raised portion is preferably formed as a separate body from the first housing. The raised portion can be separate from the first housing.

  In the electrical connector of the present invention, the first terminal can slide on the second terminal when the first terminal riding on the raised part comes out of the raised part and comes into contact with the second terminal. The terminal can reliably slide on the second terminal, and contact reliability can be improved.

It is a perspective view which shows the 1st electrical connector and 2nd electrical connector which concern on embodiment of this invention. It is a front view of the 1st electrical connector shown in FIG. It is the III-III sectional view taken on the line of the 1st electrical connector shown in FIG. It is the IV-IV sectional view taken on the line of the 1st electrical connector shown in FIG. It is a perspective view of the terminal for a short circuit of the 1st electric connector shown in FIG. It is a front view of the 2nd electrical connector shown in FIG. It is the VII-VII sectional view taken on the line of the 2nd electrical connector shown in FIG. It is a figure for demonstrating fitting operation | movement with the 1st electrical connector and 2nd electrical connector which are shown in FIG. 1, and the 1st state of the state which the protrusion part of the lock arm and the nail | claw part for latching of the outer housing were facing It is sectional drawing by the side for a short circuit terminal. It is a figure for demonstrating fitting operation | movement with the 1st electrical connector and 2nd electrical connector which are shown in FIG. 1, and the 2nd state of the state which the protrusion part of the lock arm and the nail | claw part for latching of the outer housing were facing It is sectional drawing by the side for a short circuit terminal. FIG. 9 is a cross-sectional view of the first short-circuit terminal side in a state where the protrusion of the lock arm and the locking claw of the outer housing slide following FIG. 8. FIG. 10 is a cross-sectional view of the first short-circuit terminal side in a state where the protrusion of the lock arm and the locking claw of the outer housing slide, following FIG. 9. It is a partially expanded view for demonstrating the positional relationship between the 2nd short circuit terminal shown in FIG. 11, the 2nd detection terminal, and a protruding part. FIG. 11 is a cross-sectional view of the first short-circuit terminal side in a state where the lock arm is located at the lowest point, following FIG. 10. FIG. 12 is a cross-sectional view of the second short-circuit terminal side in a state where the lock arm is positioned at the lowest point, following FIG. 11. It is a partially expanded view for demonstrating the positional relationship of the 2nd terminal for a short circuit shown in FIG. 14, the 2nd terminal for a detection, and a protruding part. FIG. 14 is a cross-sectional view of the first short-circuit terminal side in a state where the lock arm is elastically restored following FIG. 13. FIG. 15 is a cross-sectional view of the second short-circuit terminal side in a state where the lock arm is elastically restored following FIG. 14. It is a partially expanded view for demonstrating the positional relationship between the 2nd short-circuiting terminal shown in FIG. 17, the 2nd detection terminal, and a protruding part. It is the XIV-XIV sectional view taken on the line of the fitting state of the 1st electrical connector and 2nd electrical connector which are shown in FIG. FIG. 20 is an enlarged view of a portion XX in the cross-sectional view shown in FIG. 19. It is a partially expanded view which shows the 1st modification of a protruding part. It is a partially expanded view for demonstrating the positional relationship of the protruding part shown to FIG. 21A, and the 2nd terminal for a detection. It is a partially expanded view which shows the 2nd modification of a protruding part. It is a partially expanded view for demonstrating the positional relationship of the protruding part shown to FIG. 22A, and the 2nd terminal for a detection. It is a perspective view which shows the cover part in which the protruding part was formed. FIG. 24 is a cross-sectional view of the cover portion shown in FIG. It is sectional drawing which shows the fitting state of the 1st electrical connector with which the cover part of FIG. 23 was mounted | worn, and a 2nd electrical connector. It is a perspective view which shows the 1st modification of the terminal for short circuit. It is sectional drawing by the side of the 2nd short circuit terminal of the short circuit terminal shown in FIG. It is a perspective view which shows the 2nd modification of the terminal for short circuit. It is sectional drawing by the side of the 2nd short circuit terminal of the short circuit terminal shown in FIG. It is a perspective view of the female contact for a detection of the electrical connector described in patent documents 1. It is a figure for demonstrating operation | movement of the female contact for a detection of the electrical connector shown in FIG.

  An electrical connector according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the expression “front / rear” represents the side to be inserted into the mating electrical connector as “front” and the opposite direction as “rear”. Further, in the present embodiment, the vertical direction is described with the lock arm side being up and the opposite side being down.

The first electrical connector 100 serving as a female electrical connector and the second electrical connector 200 serving as a male electrical connector shown in FIG. 1 are used for electrical wiring for starting a vehicle airbag, which is an example of a safety device. This is an electrical connector. The first electrical connector 100 and the second electrical connector 200 each have two signal contact terminals (signal connection terminals).
First, the 1st electrical connector 100 which is an electrical connector which concerns on this Embodiment is demonstrated based on drawing.
As shown in FIGS. 2 to 4, the first electrical connector 100 includes an inner housing 110 (first housing) that fits into a second electrical connector 200 that is a mating electrical connector, and a second electrical connector 200 to be described later. A short-circuiting terminal 120 that detects electrical connection with the second electrical connector 200 and a female-side contact terminal (not shown) that is a female-side signal connection terminal. Yes.

  The inner housing 110 includes a rectangular parallelepiped main body 111, a pair of guide portions 112 formed on the top surface of the main body 111, and a lock arm for preventing the second electric connector 200 from coming off when in a fitted state. 113 is a resin molded product.

  In the main body 111, a terminal accommodating chamber 111a for arranging the short-circuiting terminal 120 is formed. An insertion hole 111b for inserting a detection terminal (described later) of the second electrical connector 200 is formed on the front surface of the main body 111. An insertion hole 111m (see FIG. 1) for inserting the male contact terminal of the second electrical connector 200 is also formed on the front surface of the main body 111.

Further, the main body 111 is formed with a raised portion 111e on the side of the passage P1 on the second short-circuiting terminal 150 side where the detection terminal is inserted. In the present embodiment, a pair of raised portions 111e are formed on both sides of the passage P1. The height of the raised portion 111e is formed higher than the thickness of the detection terminal.
An inclined surface 111f is formed at the end of the raised portion 111e on the second contact portion 151 side. The inclined surface 111f is a flat surface connected to the horizontal surface having the same height as the passage P1 and the top surface of the raised portion 111e.

  The pair of guide portions 112 are formed on both sides of the lock arm 113 from the front end portion to the rear end portion of the main body 111 along the insertion / extraction direction of the second electrical connector 200.

The lock arm 113 has a front end portion 113s connected to the main body 111, a predetermined gap 111c between the lock arm 113 and the main body 111, and a rear end portion 113t as a free end. It is formed so that the 113t side swings. The front end 113s of the lock arm 113 can be connected to the main body 111 with a leaf spring interposed therebetween. When the leaf spring is made of resin, the main body 111 and the lock arm 113 are integrally formed. The urging force can be applied to the rear end portion 113t of the lock arm 113.
When the second electrical connector 200 is fitted to the outer housing 210, the lock arm 113 is elastically bent and submerged and then returned to the locking claw 211a of the outer housing 210 (see FIG. 7). An engaging projection 113a is formed. The lock arm 113 is formed with a pressing portion 113b for pressing the short-circuiting terminal 120 on the short-circuiting terminal 120 side in the center.

As shown in FIG. 5, the short-circuit terminal 120 is formed by punching one metal plate and bending it. The short-circuit terminal 120 includes a base portion 130 fixed to the inner housing 110, and a first short-circuit terminal 140 and a second short-circuit terminal 150 (first terminal) arranged so as to be aligned with the base portion 130. ing.
The base portion 130 is integrally and continuously supported on the base end portions of the first short-circuit terminal 140 and the second short-circuit terminal 150. As shown in FIGS. 3 and 4, the base portion 130 is fixed to a slot portion 111 d formed in the terminal accommodating chamber 111 a of the inner housing 110. The short-circuit terminal 120 is inserted from the rear end portion of the inner housing 110, and the base portion 130 is inserted into the slot portion 111d and the terminal accommodating chamber 111a is advanced forward.

The first short-circuit terminal 140 includes a first contact portion 141 that comes into contact with the detection terminal, and a first elastic portion 142 that is elastically bent.
The first contact portion 141 is provided at the distal end portion 142a of the first elastic portion 142, and is formed by being bent into a V shape so that the detection terminal side swells.
The first elastic portion 142 is formed in an inverted V shape. Specifically, the first elastic portion 142 has a base end portion 142b bent in a U shape from the base portion 130 and directed forward, and then gradually rises up to the top portion 142c, and then moves from the top portion 142c to the distal end portion 142a. It becomes a downward slope and is connected to the first contact portion 141.

The second short-circuit terminal 150 includes a second contact portion 151 that contacts the detection terminal, and a second elastic portion 152 that advances and retracts the second contact portion 151 in conjunction with the bending of the lock arm 113.
The second contact portion 151 (contact portion) is provided at the distal end portion 152a of the second elastic portion 152, and is bent so that the detection terminal side bulges out.
The second elastic portion 152 (elastic portion) is formed in an inverted V shape in which the degree of opening of the top portion 152c is smaller than that of the first elastic portion 142. Specifically, the second elastic portion 152 has a base end portion 152b bent in a U-shape from the base portion 130 and directed forward, and then gradually rises up to the top portion 152c, and then extends from the top portion 152c to the distal end portion 152a. Then, after a sudden downward inclination, the inclination angle changes to form a gentle inclination that is connected to the second contact portion 151.
The top portion 152 c of the second elastic portion 152 is pressed by the pressing portion 113 b of the lock arm 113.

  The female contact terminal has a leaf spring made of a thin metal plate that comes into contact with the male contact terminal 230 of the first electrical connector 200 shown in FIG. The female contact terminal is connected to the cable C protruding straight from the main body 111 at the rear end of the female contact terminal.

Next, the 2nd electrical connector 200 is demonstrated based on FIG.1, FIG.6 and FIG.7.
The second electrical connector 200 is in electrical contact with the first electrical connector 100 by contacting the outer housing 210 that fits with the first electrical connector 100 and the shorting terminal 120 (see FIG. 1) of the first electrical connector 100. A detection terminal 220 that detects connection and a male contact terminal 230 that is a male signal connection terminal are provided.

  The outer housing 210 (second housing) is a resin molded product formed in a rectangular box shape. The outer housing 210 has a fitting hole 215 surrounded by a top surface portion 211, a pair of side wall portions 212, a bottom wall portion 213, and a back wall portion 214.

A pair of locking claw portions 211 a is formed on the inner side surface of the top surface portion 211.
The locking claw portion 211a is formed in the opening portion of the fitting hole 215 corresponding to the position of the protruding portion 113a in order to be hooked on the protruding portion 113a (see FIG. 1) of the lock arm 113.
On the back wall 214, the detection terminal 220 projects straight toward the opening of the fitting hole 215.

The detection terminal 220 is a needle-like terminal having a rectangular cross section extending along the insertion / extraction direction. The detection terminal 220 is bent in an inverted L shape in order to connect to the substrate. The detection terminal 220 includes a first detection terminal 221 for the first short-circuit terminal 140 and a second detection terminal 222 (second terminal) for the second short-circuit terminal 150.
If the pair of detection terminals 220 (the first detection terminal 221 and the second detection terminal 222) are in a conductive state, it can be determined that the pair of detection terminals 220 is short-circuited by the short-circuit terminal 120, It can be determined that the fitting between the first electrical connector 100 and the second electrical connector 200 is in a normal state.

  As shown in FIGS. 6 and 7, the male contact terminal 230 is arranged on both sides of the detection terminal 220. The male contact terminal 230 includes a signal board having a needle-like contact portion 231 protruding from the back wall portion 214 in the fitting hole 215 and extending in an inverted L shape through the back wall portion 214. A terminal portion 232 is formed.

Next, a fitting operation and a use state of the first electrical connector 100 and the second electrical connector 200 according to the present embodiment will be described based on the drawings.
First, the front part of the first electrical connector 100 is inserted into the fitting hole 215 of the second electrical connector 200 and advanced. As shown in FIGS. 8 and 9, when the inner housing 110 is advanced toward the fitting hole 215 of the outer housing 210 in the fitting direction, the detection terminals of the second electrical connector 200 are relatively moved. 220 is inserted into the insertion hole 111 b of the inner housing 110 and proceeds toward the short-circuiting terminal 120.

The inner housing 110 is inserted straight into the fitting hole 215 by the guide portion 112 (see FIG. 1) of the inner housing 110 being advanced along the inner wall of the fitting hole 215. In this state, the protrusion 113 a of the lock arm 113 is in a state of facing the locking claw 211 a of the outer housing 210.
In the initial state where the protruding portion 113a and the locking claw portion 211a face each other and are not pressed against each other, the pressing portion 113b of the lock arm 113 does not press the second elastic portion 152 of the second short-circuit terminal 150. State. The second contact portion 151 of the second short-circuit terminal 150 is located below the inclined surface 111f of the raised portion 111e.
The first detection terminal 221 and the second detection terminal 222 are not in contact with the first short-circuit terminal 140 and the second short-circuit terminal 150, respectively.

  When the inner housing 110 is further advanced from the state in which the front slope of the locking claw portion 211a hits the front slope of the protrusion 113a, as shown in FIG. 10, the first detection terminal 221 becomes the first short circuit. The first contact portion 141 of the terminal 140 for use begins to contact.

  As shown in FIG. 11, the protrusion 113a is pushed while sliding on the front slope of the locking claw 211a, and the lock arm 113 is pushed down toward the gap 111c. At this time, since the front end 113s is connected to the main body 111 and the rear end 113t is a free end, the lock arm 113 has the front end 113s as a fulcrum while receiving the urging force from the front end 113s. As a result, the rear end 113t sinks. Further, the pressing portion 113b of the lock arm 113 moves toward the gap 111c, so that the pressing portion 113b presses the top portion 152c of the second elastic portion 152 of the second short-circuiting terminal 150.

By the pressing by the pressing portion 113b, the degree of opening of the top portion 152c of the second elastic portion 152 is increased. Since the base end portion 152b of the second elastic portion 152 is connected to the base portion 130, the second contact portion 151, which is a free end located on the opposite side of the base end portion 152b, advances toward the insertion hole 111b.
Since the second elastic portion 152 is formed in an inverted V shape and the second contact portion 151 is provided at the distal end portion of the second elastic portion 152, the pressing portion 113 b of the lock arm 113 is connected to the second elastic portion 152. The second contact portion 151 can be easily advanced by pressing the top portion 152c that is a bent portion. Further, the second contact portion 151 can be advanced or retracted according to the degree of opening of the top portion 152c of the second elastic portion 152.
As shown in FIG. 12, since the second contact portion 151 is located on the inclined surface 111f of the raised portion 111e, the second contact portion 151 rides on the inclined surface 111f along with the extension of the second elastic portion 152, and the retracted position. Move to S1.

The raised portions 111e are arranged on both sides of the passage P1 into which the second detection terminal 222 is inserted, and are formed higher than the thickness of the second detection terminal 222. Therefore, the positional relationship between the second detection terminal 222 inserted from the insertion hole 111b and the second contact portion 151 at this time is determined by the insertion direction of the second detection terminal 222 (hereinafter, this direction is referred to as the first direction F1). In the height direction orthogonal to the insertion direction (hereinafter, this direction is referred to as a second direction F2), the second contact portion 151 is in a position where it contacts the second detection terminal 222. The second contact portion 151 is located at a higher position than the contact position S2 with the second detection terminal 222.
Accordingly, the second contact portion 151 moves to the retreat position S1 while being in a non-contact state with the second detection terminal 222.

Subsequently, as shown in FIGS. 13 and 14, the front slopes of the protrusion 113a and the locking claw 211a pass too much, and the top surfaces of the protrusion 113a and the locking claw 211a When it is in a facing position, the lock arm 113 is most bent (the lowest point of the pressing portion 113b of the lock arm 113).
As shown in FIG. 13, the first contact portion 141 of the first short-circuit terminal 140 slides the first detection terminal 221 toward the base end side as the fitting of the inner housing 110 and the outer housing 210 proceeds. Move while moving. By sliding the first contact portion 141 and the first detection terminal 221, the first contact portion 141 and the first detection terminal 221 can obtain a wiping effect.

  As shown in FIGS. 14 and 15, in a state where the pressing portion 113b of the lock arm 113 is located at the lowest point, the second contact portion 151 is located at the retracted position S1 of the inclined surface 111f. Since the second contact portion 151 rides on the inclined surface 111f in a non-contact state with the second detection terminal 222, the second contact portion 151 is not in contact with the second detection terminal 222 even in the state of being in the retracted position S1.

Subsequently, as shown in FIGS. 16 and 17, when the locking claw portion 211a exceeds the protruding portion 113a, the lock arm 113 is elastically restored, so that the rear end surface of the locking claw portion 211a and the protruding portion 113a are restored. The rear end face faces and locks. This locking prevents the first electrical connector 100 from being removed from the second electrical connector 200.
Furthermore, as the fitting between the inner housing 110 and the outer housing 210 proceeds, the contact position of the first contact portion 141 of the first short-circuiting terminal 140 slides toward the base end side of the first detection terminal 221. Moving.

Due to the elastic return of the lock arm 113, the lock arm 113 rises with the front end 113s as a fulcrum, and the rear end 113t rises back to the original position before fitting. When the lock arm 113 returns to the original position, the pressing portion 113b of the lock arm 113 rises and separates from the second short-circuiting terminal 150, so that the pressure on the second short-circuiting terminal 150 is released.
The second elastic portion 152 of the second short-circuiting terminal 150 is elastically restored by releasing the pressing by the pressing portion 113b.
Since the degree of opening of the top portion 152c of the second elastic portion 152 becomes narrow due to the elastic return of the second elastic portion 152, the second contact portion 151 located on the distal end portion 152a side of the second elastic portion 152 becomes the second elastic portion 152. By being pulled toward the base end portion 152b side, the second contact portion 151 is retracted from the retracted position S1 to the original position before fitting.

When the second contact portion 151 moves back down the inclined surface 111f and the position of the contact portion 151 in the second direction F2 becomes the contact position S2 of the second detection terminal 222, the second contact portion 151 is Then, it comes off the inclined surface 111f of the raised portion 111e and slides on the contact position S2 of the second detection terminal 222.
When the second contact portion 151 slides on the second detection terminal 222, the second contact portion 151 and the second detection terminal 222 can obtain a wiping effect.
Further, as shown in FIGS. 19 and 20, the second contact portion 151 rides on the second detection terminal 222 and is supported by the second detection terminal 222 without contacting the inner housing 110. It is possible to prevent the inner housing 110 from being damaged by the second contact portion 151.
Thus, the fitting of the first electrical connector 100 and the second electrical connector 200 is completed.

Thus, according to the first electrical connector 100 and the second electrical connector 200 according to the present embodiment, first, the inner housing 110 in which the second elastic portion 152 is elastically deformed in conjunction with the bending of the lock arm 113. In the stage before the outer housing 210 is fitted to the outer housing 210, the second short-circuiting terminal 150 is in a state of not contacting the second detection terminal 222 by being on the raised portion 111e. Next, in a stage after the inner housing 110 is fitted to the outer housing 210, the second short-circuiting terminal 150 comes into contact with the second detection terminal 222 by descending from the raised portion 111e. Therefore, the second short-circuit terminal 150 can be slid when contacting the second detection terminal 222.
Therefore, even if the second short-circuiting terminal 150 or the second detection terminal 222 is contaminated or corroded, the second short-circuiting terminal 150 or the second detection terminal 222 is contaminated or corroded by friction due to mutual sliding. Since it is removed, the contact reliability of the second short-circuit terminal 150 and the second detection terminal 222 can be significantly improved.

Moreover, since the inclined surface 111f which raises / lowers the 2nd contact part 151 is formed in the protruding part 111e, the 2nd contact part 151 can be advanced / retreated without being caught in the level | step difference by the protruding part 111e. Moreover, since the inclined surface 111f is formed on a flat surface, the second contact portion 151 can be smoothly advanced and retracted.
Further, since the raised portion 111e is formed on the inner housing 110, the raised portion 111e can be simultaneously formed when the inner housing 110 is formed.

Here, a modified example of the raised portion will be described based on the drawings.
For example, as shown in FIGS. 21A and 21B, the inclined surface 111h of the raised portion 111g can be an arc surface bulging outward. By making the inclined surface 111h an arc surface, the inclination becomes gentler near the retracted position S1 than when it is a flat surface. Therefore, the second contact portion 151 can be greatly advanced by a slight opening of the second elastic portion 152 near the retracted position S1. Therefore, the second contact portion 151 can be easily advanced.

  Further, as shown in FIGS. 22A and 22B, a stepped portion 111m is formed on the inclined surface 111k of the raised portion 111j. The initial position of the second contact portion 151 (the state before the inner housing 110 and the outer housing 210 are fitted) can be set as the position of the stepped portion 111m.

  For example, in the short-circuit terminal 120 of the first electrical connector 100 shown in FIG. 9, the second elastic portion 152 in a curved state such that the initial position of the second contact portion 151 is higher than the inclined surface 111f of the raised portion 111e. Suppose that In this case, when the fitting between the inner housing 110 and the outer housing 210 progresses and the pressing to the second elastic portion 152 by the lock arm 113 starts, the second elastic portion 152 is bent and the second contact portion 151 is advanced. It contacts the inclined surface 111f.

When the second contact portion 151 is brought into contact with the inclined surface 111f from an unstable non-contact state, the inclined surface 111f may not move straight and may move forward.
Further, even if the inclined surface 111h of the raised portion 111g shown in FIGS. 21A and 21B is an arc surface, similarly, the initial position of the second contact portion 151 is higher than the inclined surface 111h of the raised portion 111g. When the second contact portion 151 is brought into contact with the inclined surface 111f from an unstable non-contact state, there is a possibility that the inclined surface 111f does not travel straight but moves forward.

Therefore, as shown in FIGS. 22A and 22B, when the initial position of the second contact portion 151 is located at the stepped portion 111m of the inclined surface 111k of the raised portion 111j, the second contact portion 151 is changed to the stepped portion 111m. It can be made into the state made to contact. Therefore, since the second contact portion 151 proceeds in the stepped portion 111m in a state where a load is applied to the stepped portion 111m in advance, the second contact portion 151 can be stably climbed on the second half portion of the inclined surface 111k. it can.
The stepped portion 111m may be formed on the inclined surface 111g having an arc surface shown in FIGS. 21A and 21B.

The raised portion 111e shown in FIG. 4 is formed integrally with the main body 111 of the inner housing 110. Since the raised portion 111e is formed as a part of the inner housing 110, the raised portion 111e can be molded together when the inner housing 110 is molded.
However, the raised portion can be separated from the inner housing. A second electrical connector in which the raised portion is separated from the inner housing will be described with reference to FIGS. In FIG. 25, the same components as those in FIG.

As shown in FIGS. 23 to 25, the inner housing 110x of the first electrical connector 100x includes a main body 111x and a cover portion 114 that covers the front surface of the main body 111x.
The cover part 114 includes a front surface 114a, a side wall surface 114b, a bottom wall surface 114c, and a ceiling surface 114d that extend rearward from the front surface 114a.
An insertion hole 111b into which the pair of detection terminals 220 are inserted is formed in the front surface 114a. An elastic claw portion 114e sandwiched between a pair of slits is formed on the side wall surface 114b so as to be engaged with the main body 111x. The ceiling surface 114d is cut out into a large rectangular shape, leaving the side and center portions.

In the cover portion 114, a raised portion 114 f that sandwiches the insertion hole 111 b on the side where the second detection terminal 222 is inserted from the front surface 114 a is inserted into the passage of the second detection terminal 222. It is formed along P1. The shape of the raised portion 114f is the same as the raised portion 111e having a flat inclined surface 111f shown in FIG. 4, but as shown in FIG. 21A, a raised portion 111g having an inclined surface 111h as an arc surface, or As shown in FIG. 22B, it can be a raised portion 111j in which a stepped portion 111m is formed on an inclined surface 111k.
In this way, the raised portion 114f can be formed separately from the inner housing 110x.

Next, a modification of the short-circuit terminal will be described based on the drawings. 26 and 27, the same components as those in FIG.
As shown in FIG. 26 and FIG. 27, the short-circuit terminal 160 has side wall portions 161 standing on both ends of the base portion 130 in the direction in which the first short-circuit terminal 140 and the second short-circuit terminal 150 are arranged. Yes.

The side wall 161 includes a first elastic portion 142 of the first short-circuiting terminal 140 and a second elastic portion 152 of the second short-circuiting terminal 150, which are the detection terminals 220 (first detection terminals 221 and second detection terminals. The first protection part 162 is formed so that it does not bend excessively when 222) is inserted in an illegal insertion posture.
The first protection part 162 (protection part) blocks the opening direction of the first elastic part 142 and the second elastic part 152 from the side wall part 161 above the first elastic part 142 and the second elastic part 152, respectively. It is a plate-like body protruding like this.

  Since the first protection part 162 is formed on the short-circuit terminal 160, the tip of the detection terminal 220 is directed toward the first elastic part 142 or the second elastic part 152, and the first elastic part 142. Alternatively, even if the first elastic portion 142 and the second elastic portion 152 are inserted in a direction in which the second elastic portion 152 is pushed up and expanded, and the first elastic portion 142 and the second elastic portion 152 are greatly bent open, the first elastic portion 142 and the second elastic portion 152 are The degree of flexure is regulated by contacting. Accordingly, it is possible to prevent the first elastic portion 142 or the second elastic portion 152 from being excessively expanded and plastically deformed.

In addition, a second protection part 163 is formed on the base part 130 at the end part on the first contact part 141 and second contact part 151 side.
The second protection part (protection part) 163 is located below the first elastic part 142 and the second elastic part 152, and upward from the base part 130 toward the first elastic part 142 and the second elastic part 152, respectively. It is a protruding plate-like body.

  Since the second protection part 163 is formed on the short-circuit terminal 160, the tip of the detection terminal 220 is directed toward the base part 130, and the shaft part of the detection terminal 220 is the first elastic part 142 or Even if the second elastic portion 152 is greatly bent and expanded, the degree of bending of the first elastic portion 142 and the second elastic portion 152 is restricted by the detection terminal 220 coming into contact with the second protection portion 163. Accordingly, it is possible to prevent the first elastic portion 142 or the second elastic portion 152 from being excessively expanded and plastically deformed.

  Thus, even if the detection terminal 220 is inserted in an unauthorized posture, the first protection part 162 and the second protection part 163 can maintain the spring properties of the first elastic part 142 and the second elastic part 152. it can.

Here, the short-circuiting terminal having the raised portion while having the first protection portion 162 will be described with reference to the drawings. In FIG. 28 and FIG. 29, the same components as those in FIG. 26 and FIG.
As shown in FIGS. 28 and 29, the short-circuiting terminal 160x is such that the second short-circuiting terminal 150 side of the base portion 130x extends from the base portion 130x toward the second contact portion 151, and the tip is folded back. The formed raised portion 131 is formed.

The raised portion 131 has a slanted side 131a formed as a slanted surface 131a by forming a strip-shaped plate material into a right-angled triangle shape by bending the distal end portion vertically and then bending it to the proximal end portion.
The raised portion 131 is connected to the base plate 133 via a rectangular plate-shaped connecting portion 132 in order to be disposed at a position where the second contact portion 151 proceeds and rides on the inclined surface 131a during fitting.

  Thus, even if the raised portion 131 is formed on the base portion 130x for attaching the short-circuiting terminal 160x to the inner housing 110 (see FIG. 4), the second contact portion 151 is used as the second detection terminal when fitted. 222 (see FIG. 18) is in a non-contact state so as to ride on the retracted position S1 of the raised portion 131 and to return to the original position from the retracted position S1 by retreating the second contact portion 151, and by this return, the second contact portion 151 can be slid on the second detection terminal 222.

  In addition, although the 2nd elastic part 152 of the 2nd short circuit terminal 150 which concerns on this Embodiment is formed in reverse V shape, it is pressed by the lock arm 113 and the opening degree of the top part of a 2nd elastic part is Since it should just expand, a 2nd elastic part can also be made into a reverse U-shape.

  INDUSTRIAL APPLICABILITY The present invention is suitable for electrical connectors widely used in fields such as the automobile industry, electrical / electronic equipment industry, and various machine industries as a means for connecting electric wires that conduct electrical signals. In particular, the present invention is optimal for electrical connectors used in safety devices.

100,100x first electrical connector (electrical connector)
110,110x Inner housing (first housing)
111, 111x body 111a terminal accommodating chamber 111b insertion hole 111c gap 111d slot portion 111e, 111g, 111j raised portion (terminal displacement mechanism)
111f, 111h, 111k Inclined surface 111m Insertion hole 112 Guide portion 113 Lock arm 113a Projection portion 113b Pressing portion 113s Front end portion 113t Rear end portion 114 Cover portion 114a Front surface 114b Side wall surface 114c Bottom wall surface 114d Ceiling surface 114e Elastic claw portion 114f Raised portion (Terminal displacement mechanism)
120 Short-circuiting terminal 130, 130x Base portion 131 Raised portion (terminal displacement mechanism)
131a Inclined surface 132 Connection portion 133 Base plate 140 First short-circuit terminal 141 First contact portion 142 First elastic portion 142a Tip portion 142b Base end portion 142c Top portion 150 Second short-circuit terminal (first terminal)
151 2nd contact part (contact part)
152 Second elastic part (elastic part)
152a Front end portion 152b Base end portion 152c Top portion 160, 160x Short-circuit terminal 161 Side wall portion 162 First protection portion (protection portion)
163 2nd protection part (protection part)
200 Second electrical connector 210 Outer housing (second housing)
211 Top surface portion 211a Claw portion for locking 212 Side wall portion 213 Bottom wall portion 214 Back wall portion 215 Fitting hole 220 Detection terminal 221 First detection terminal 222 Second detection terminal (second terminal)
230 Male contact terminal 231 Contact part 232 Signal board terminal part S1 Retraction position S2 Contact position P1 Pathway F1 First direction F2 Second direction

Claims (11)

A first housing;
When the first housing and the second housing are fitted, a lock arm that returns after being elastically bent and engages with the second housing;
A first short-circuiting terminal and a second short-circuiting terminal that are electrically connected to each of the first detection terminal and the second detection terminal provided in the second housing ; the first short-circuiting terminal; A short-circuiting terminal that supports base ends of the second short-circuiting terminals and includes a base portion fixed to the first housing ;
A terminal displacement mechanism for displacing the second short-circuiting terminal in a direction in which the first housing and the second housing are fitted to each other;
With
The first short-circuit terminal has a first contact portion that slides on the first detection terminal during the fitting,
The second short-circuiting terminal is elastically deformed in conjunction with the second contact portion contacting the second detection terminal and the bending of the lock arm, and the second contact portion is in the direction of fitting with each other. An elastic part to be displaced,
The terminal displacement mechanism includes a raised portion,
The elastic portion is elastically deformed in conjunction with the bending of the lock arm, and the elastic portion of the second short-circuiting terminal is elastically deformed before the first housing is fitted to the second housing. Then, when the second contact portion rides on the raised portion, the second detection terminal is brought into a non-contact state, and the first housing is engaged with the second housing , In the stage after the lock arm is returned and locked to the second housing, the second short-circuiting terminal returns to the original state of the elastic portion and the second contact portion from the raised portion. The electrical connector , wherein the second contact portion comes into contact with the second detection terminal by descending. The electrical connector according to claim 1, wherein the raised portion includes an inclined surface that raises and lowers the second contact portion.   The electrical connector according to claim 2, wherein the inclined surface is a flat surface.   The electrical connector according to claim 2, wherein the inclined surface is an arc surface bulging outward.   The electrical connector according to claim 2, wherein a step portion is formed on the inclined surface. The raised portion is disposed on the side of the passage into which the second detection terminal is inserted, and the upper surface of the raised portion is formed higher than the thickness of the second detection terminal. The electrical connector according to any one of claims 1 to 5. The elastic part is formed in an inverted V shape or an inverted U shape,
The electrical connector according to claim 1, wherein the second contact portion is provided at a tip of the elastic portion. The electrical connector according to claim 1, further comprising a protection unit that regulates a degree of bending of the elastic portion due to contact between the second contact portion and the second detection terminal.   The electrical connector according to claim 1, wherein the raised portion is formed integrally with the first housing. Before SL ridges, it extends toward the second contact portion from the base portion, the electrical connector according to claim 1, wherein the tip is formed by folding back.   The electrical connector according to claim 1, wherein the raised portion is formed separately from the first housing.

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