JP2007258012A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a short circuit function of a terminal and an electric fitting detecting function by achieving downsizing of a connector and with high reliability. <P>SOLUTION: A short-terminal 50 to short circuit mutual male terminals 20 is mounted on a male housing 30. The short-terminal 50 is composed of a pair of terminal pieces 51U, 51D, and a switch part 85 is formed by installing a fixed contact piece 57 at one and a movable contact piece 58 at the other which is elastically contacted with and separated from this, and the fitting detecting circuit in which this short-terminal 50 is interposed is constituted. When both housings 10, 30 are normally fitted, a lock member 11 is restored, displaced and engaged with and locked to a locked part 40, and in addition since the lock member 11 pushes a pressed plate 64 and bends the movable contact piece 58, the switch part 85 is cut off. By this, short circuit between the male terminals 20 is released, the fitting detecting circuit is cut off, and electrical fitting detection is carried out. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connector having a terminal short-circuit function and a housing electrical fitting detection function.

Conventionally, what was described in patent document 1 is known as a connector provided with the short circuit function of a terminal, and the electrical fitting detection function of a housing.
This is a first short terminal that contacts and short-circuits between adjacent female terminals accommodated in a female housing (a retainer mounted on the female housing, to be precise) in a female and male housing. And the second short terminal is mounted over an empty adjacent cavity in which the female terminal is not accommodated, and when the male and female housings are fitted, ribs provided on the male housing side are provided. The first short terminal is separated from the female terminal, the short circuit between the female terminals is released, and the adjacent male terminal is inserted into the empty cavity, and the two short terminals are connected between the male terminals. As a result, the fitting detection circuit is closed, and electrical fitting detection is performed.
Japanese Patent Laid-Open No. 5-190233

In the conventional means described above, short terminals for short-circuiting and short-circuiting for fitting detection are separately provided and mounted at different locations. Therefore, a large number of parts and a large mounting space are required. Since there is a certain width in the timing at which the terminals are connected by the second short terminals, further improvement has been desired so that regular fitting can be detected with higher reliability.
The present invention has been completed based on the above circumstances, and its purpose is to reduce the number of parts and have high reliability, and to provide a terminal short-circuit function and a housing electrical fitting detection function. It is in a place to finish.

  As means for achieving the above object, the invention of claim 1 includes a pair of housings that can be fitted to each other, and one of the housings can be short-circuited between the terminal fittings accommodated in the housing. A short terminal is mounted, and a switch portion that can be switched between connection and disconnection is provided on the short terminal, and a fitting detection circuit is provided with the short terminal interposed between the two housings. Is provided with a lock mechanism portion that locks when both housings are properly fitted, and the switch portion of the short terminal is always in a connected state, and when both housings are properly fitted, the lock mechanism portion is provided. It is characterized in that it is configured to be in a disconnected state by engaging with the part.

  According to a second aspect of the present invention, in the first aspect of the present invention, the lock mechanism section includes an elastically displaceable lock member and a locked portion that can be locked to the lock member. The two housings are fitted together as the locking member elastically displaces and passes through the locked part, and the locking member is restored and displaced when the locking member is properly fitted. And is configured to be engaged with the switch portion of the short terminal to cut it.

  According to a third aspect of the present invention, in the first or second aspect, the short terminal includes a pair of terminal pieces each having a contact portion that individually contacts the terminal fitting, and one terminal piece includes A movable contact that can be brought into and out of contact with a mating terminal piece is provided to form the switch portion, and the movable contact is engaged with the lock mechanism portion to connect the movable contact to the mating terminal. It is characterized in that an engaging portion is provided that is displaced in a direction away from the piece.

<Invention of Claim 1>
The short terminal is attached to one housing with the switch portion closed, and the terminal fittings accommodated in the housing are short-circuited. When both housings are fitted and regular fitting is achieved, the locking mechanism locks between the two housings. With this locking operation, the short terminal switch is cut and the short circuit between the terminal fittings is released. At the same time, the fitting detection circuit is cut to detect electrical fitting.
Since the short-circuit function of the terminal and the electrical fitting detection function of the housing can be accomplished by using a common short terminal, the installation space for the short terminal can be reduced, contributing to the miniaturization of the housing. Since only one type of short terminal has to be manufactured, the manufacturing cost can be reduced. Further, since the fitting detection circuit is cut using a lock mechanism that operates only when both housings are properly fitted, fitting detection can be performed with high reliability.

<Invention of Claim 2>
The two housings are gradually fitted while passing through the other locked part due to elastic displacement of the locking member, and when the normal fitting is reached, the locking member is restored and displaced to be locked to the locked part. The housing is locked. By engaging with the restored and displaced lock member, the switch portion of the short terminal is cut, the short circuit between the terminal fittings is released, and the fitting detection circuit is cut.
<Invention of Claim 3>
In the short terminal, the contact part of each terminal piece comes into contact with the corresponding terminal fitting individually, and the movable contact protruding from one terminal piece comes into contact with the other terminal piece, that is, the switch part is connected. The terminal fittings are put into a short-circuited state. When both housings are properly fitted and locked by the locking mechanism, the movable contact is separated from the mating terminal piece via the engaging portion in accordance with the locking operation of the locking mechanism, that is, the switch is disconnected. Thus, the short circuit between the terminal fittings is released and the fitting detection circuit is cut.

<Embodiment>
An embodiment of the present invention will be described with reference to FIGS. In this embodiment, a connector for an airbag circuit is illustrated. As shown in FIG. 9, a female connector housing 10 (hereinafter referred to as a female housing 10) and a male connector housing 30 that are fitted to each other. (Hereinafter, male housing 30), and two sets of short terminals 50 are mounted on the male housing 30 side.
Below, about each housing 10 and 30, a fitting surface side is demonstrated as a front surface.

The male housing 30 is made of a synthetic resin, and as shown in FIGS. 1 and 7 and the like, a horizontally long rectangular hood portion 32 is formed on the front surface of a body portion 31 having a slightly flat block shape. Thus, the mating female housing 10 is fitted in the hood portion 32.
In the main body 31, four cavities 34 shown in the figure for accommodating the male terminals 20 are formed so as to face in the front-rear direction. As schematically shown in FIG. 7, the male terminal 20 has a shape in which a tab 22 protrudes from the front surface of a main body 21 having a box shape with a vertically long cross section, and a barrel 23 provided at the rear of the main body 21. It is connected to the terminal of the electric wire 25 by caulking.

As shown in FIG. 1, the two cavities 34 on the left side and the two on the right side form the same group as shown in FIG. 1, and the cavities 34 of each group are slightly shifted up and down. At the position, it is formed in an arrangement with a predetermined pitch left and right. As shown in FIG. 3, each cavity 34 has a slightly horizontally long rectangular cross section, a terminal insertion port 35 is opened on the front surface, and a lance 36 on one side in the width direction (the left side in the figure). Is provided.
In the cavity 34, the male terminal 20 connected to the end of the electric wire 25 is inserted from the rear in a laid-down posture, and when the lance 36 is inserted to a predetermined position as shown in FIG. The male terminal 20 is received in a locking hole 24 opened in 21, and is retained in a state where the tab 22 protrudes from the terminal insertion opening 35 into the hood portion 32.

  One female housing 10 is also made of a synthetic resin, and is formed in a block shape to be fitted in the hood portion 32 of the male housing 30 as shown in FIG. Although not shown, four cavities are formed in the female housing 10 so as to correspond to the cavities 34 of the male housing 30, and female terminals connected to the ends of the electric wires are inserted into the cavities from the rear. It is housed in a lance provided inside.

  On the upper surface of the female housing 10, there is provided a lock member 11 for locking both the housings 10 and 30 in a properly fitted state. The lock member 11 has a wide plate shape as shown by a chain line in FIG. 1, and a base end is integrally formed on a support portion 12 erected on the rear end of the upper surface of the female housing 10. It is formed in a cantilever shape extending toward the front end of the female housing 10, and the extended end side can be elastically displaced in the vertical direction. A lock groove 13 is cut in the lock member 11 at the center in the width direction so as to open to the base end from a position slightly inserted from the extended end, and the front end thereof is a lock surface 14. At the extended end of the lock member 11, an operation portion 16 facing forward and obliquely upward is formed.

  The mating male housing 30 is provided with a locked portion 40 that engages with the lock member 11. Specifically, a pedestal 41 having a width that fits into the lock groove 13 is formed at a position near the rear end on the upper surface of the hood portion 32 of the male housing 30, and a locked plate 43 is formed at the center in the width direction of the pedestal 41. Is protruding. The to-be-locked plate 43 has a thickness of about 1/3 of the width of the pedestal 41 and is formed over the entire length. The locking plate 44 has a raised rear surface, and the front surface is inclined upward from the front to the rear. A guide surface 45 is formed. The front end surface of the pedestal 41 is an upwardly inclined surface 42 and is connected to the hem of the guide surface 45.

As will be described in detail later, when both the housings 10 and 30 are fitted, the lock member 11 is elastically displaced to ride on the locked plate 43, and when both the housings 10 and 30 are properly fitted, the lock surface When 14 passes through the locked plate 43, the lock member 11 is restored and displaced to the original posture, and the locked plate 43 is brought into contact with the upper surface of the mating hood portion 32 while fitting into the lock groove 13 together with the base 41. As a result, the locked portion 40 is locked to the lock surface 14 so that both the housings 10 and 30 are locked in the normal fitting state.
Note that a cassette portion 47 is provided on the lower surface of the male housing 30 to be inserted and attached to a bracket provided in a device or the like.

Now, two sets of short terminals 50 are mounted on the male housing 30. As shown in FIGS. 4 to 6, the short terminal 50 is mounted so that a pair of terminal pieces 51U and 51D overlap with each other in the vertical direction, and are hereinafter referred to as an upper terminal piece 51U and a lower terminal piece 51D, respectively.
Both terminal pieces 51U and 51D are formed by press-molding a metal plate having excellent electrical conductivity. The upper terminal piece 51U has a horizontally long insertion portion 52U at the rear end, and a contact piece 53U is formed to extend forward from one end side (the upper side in FIG. 4) of the insertion portion 52U. In the natural state, as shown in FIG. 5, the contact piece 53U is gradually extended downward toward the tip, the extended end is bent obliquely upward, and the contact portion 55 is connected to the bent portion 54. It is formed by punching downward. From the other end side of the insertion portion 52U, a fixed contact piece 57 is formed to extend forward in a horizontal posture. The fixed contact piece 57 is wider than the contact piece 53U and has a longer overall length.

  The lower terminal piece 51D is provided at its rear end with a horizontally long insertion part 52D similar to the insertion part 52U of the upper terminal piece 51U. The other end of the insertion part 52D is opposite to the upper terminal piece 51U. From the side (the lower side in FIG. 4), a contact piece 53D is formed to extend forward. Similarly to the contact piece 53U of the upper terminal piece 51U, the contact piece 53D extends gradually downward toward the tip, and the extension end is bent obliquely upward, and the contact portion is connected to the bent portion 54. 55 is formed by projecting downward.

  A movable contact piece 58 is formed to extend forward from one end side of the insertion portion 52D. The movable contact piece 58 has the same width as that of the fixed contact piece 57, but has a slightly longer overall length. The movable contact piece 58 is formed with a gentle upward slope toward the tip, and a contact portion 60 is formed on the top surface of the tip side of the gently inclined portion 59 by hammering. At the tip of the gently inclined portion 59, a horizontal high level portion 63 that is raised by a steeply inclined portion 62 is formed, and a pressed plate 64 rises at the right edge of the high level portion 63 as viewed from the front. Has been.

As will be described later in detail, the upper and lower terminal pieces 51U, 51D are arranged at predetermined intervals in the vertical direction, with the insertion portions 52U, 52D at the rear ends being shifted by a predetermined dimension in the left-right direction. Both contact pieces 53U and 53D are arranged at an interval equal to the pitch in the left-right direction between the male terminals 20 of the same set. In addition, the fixed contact piece 57 and the movable contact piece 58 are set to overlap in the vertical direction.
The other set of short terminals 50 also has the same structure and the same arrangement.

A mounting hole 70 for the short terminal 50 is formed in the male housing 30. The mounting holes 70 having the same structure are formed in two places on the left and right sides corresponding to the two sets of short terminals 50. Hereinafter, the left side viewed from the front will be described as an example.
The mounting hole 70 is roughly divided into a contact piece accommodating portion 71 at the center and contact piece accommodating portions 72L and 72R on the left and right sides thereof. The contact piece accommodating portion 71 is for accommodating the fixed contact piece 57 of the upper terminal piece 51U and the movable contact piece 58 of the lower terminal piece 51D, and the left and right cavities 34 on the rear surface of the hood portion 32. In the middle and at the upper end position, the contact pieces 57 and 58 have the same width and are opened to the front surface. As shown in FIG. 9, an upper insertion groove 74 </ b> U into which the fixed contact piece 57 can be tightly inserted from the insertion portion 52 </ b> U of the upper terminal piece 51 </ b> U is slightly formed on the upper end of the contact piece accommodating portion 71. It is formed horizontally over the front position.

On the other hand, a lower insertion groove 74L into which the movable contact piece 58 can be inserted from the insertion portion 52D of the lower terminal piece 51D is formed at the lower end of the contact piece accommodating portion 71. The lower insertion groove 74L is also formed over a position slightly in front of the rear surface of the main body 31. The back end portion is a press-fit portion 75 capable of press-fitting the insertion portion 52D. The height of the opening is gradually increased, and communicates with the bottom surface of the upper insertion groove 74U within a predetermined range in front.
Further, at the position corresponding to the contact piece receiving portion 71 on the upper wall of the hood portion 32 of the male housing 30, as shown in FIG. 2, an escape groove 76 having substantially the same width as the movable contact piece 58 is provided. An opening is formed at the front edge from a position slightly in front of the back surface of. Therefore, a displacement allowable space 77 that allows the distal end side of the movable contact piece 58 to be elastically displaced in the vertical direction extends from the region on the near side of the lower insertion groove 74L to the escape groove 76.

  The position of the escape groove 76 is also located on the left side as viewed from the front of the locked part 40 described above. The relief groove 76 attached to the right mounting hole 70 is formed almost symmetrically on the right side when viewed from the front of the locked portion 40, and the lock member 11 is hooked on the locked portion 40 as described above. When this occurs, the left and right side edges of the lock member 11 cover the relief grooves 76 so as to contact the upper surface of the hood portion 32.

The right contact piece accommodating portion 72R is for accommodating the contact piece 53U of the upper terminal piece 51U, and is located directly above the right cavity 34 on the back surface of the hood portion 32 and at the upper end position. It has almost the same width and is opened at the front. As shown in FIG. 7, the contact piece accommodating portion 72R has a rear end portion at the upper end that reaches a position slightly in front of the rear surface of the main body portion 31, and a press-fit portion 80R capable of press-fitting the insertion portion 52U of the upper terminal piece 51U. In addition, in the predetermined area in front of it, the bottom surface is an inclined surface 81R having a downward slope, and in the area reaching the front surface, the upper surface of the upper cavity 34 is opened.
Further, between the upper surfaces of the right contact piece housing portion 72R and the contact piece housing portion 71, a communication groove 83R that connects the back press-fit portion 80R and the back portion of the upper insertion groove 74U opens to the front surface. Is formed.

The left contact piece accommodating portion 72L is for accommodating the contact piece 53D of the lower terminal piece 51D, and is directly above the left cavity 34 in the back surface of the hood portion 32 and on the right contact piece accommodating portion 72R. At a position lower by a predetermined dimension, the contact piece 53D is formed with an opening on the front surface having substantially the same width. As shown in FIG. 8, the contact piece accommodating portion 71 </ b> L has a press-fit portion 80 </ b> L that can be press-fitted with the insertion portion 52 </ b> D of the lower terminal piece 51 </ b> D, with the back portion of the upper end reaching a slightly front position on the rear surface of the main body portion 31. In addition, in the predetermined area in front of it, the bottom surface is an inclined surface 81L having a downward slope, and in the area reaching the front surface, an opening is formed on the upper surface of the lower cavity 34.
Further, between the upper surface of the left contact piece housing portion 72L and the lower surface of the contact piece housing portion 71, a communication groove 83L that connects the respective press-fit portions 80L, 75 to each other is formed to open to the front surface. ing.

The short terminal 50 is mounted as follows. First, when the upper terminal piece 51U is inserted so that the insertion portion 52U passes through the connecting groove 83R and is along the upper surfaces of the contact piece accommodation portion 71 and the right contact piece accommodation portion 72R, the insertion portion 52U is inserted. However, the upper insertion groove 74U, the inner part of the communication groove 83R, and the press-fitting part 80R are press-fitted so as to be prevented from being detached. At that time, as shown in FIG. 7, the contact piece 53 </ b> U is received by the inclined surface 81 </ b> R on the base side, and then the bent portion 54 enters the upper cavity 34 from above.
As shown in FIG. 9, the fixed contact piece 57 is inserted in the entire length of the upper insertion groove 74 </ b> U, and in particular, the upper surface of the front end portion is received by the receiving surface 79 that is the root portion of the upper wall of the hood portion 32.

Next, when the lower terminal piece 51D is inserted so that the insertion part 52D is passed through the connecting groove 83L and along the lower surface of the contact piece housing part 71 and the upper surface of the left contact piece housing part 72L, Similarly, the insertion part 52D is pressed and fitted over the press-fitting parts 75 and 80L and the inner part of the communication groove 83L so as to be prevented from coming off. At that time, as shown in FIG. 8, the contact piece 53 </ b> D is received by the inclined surface 81 </ b> L on the base side, and then the bent portion 54 enters the lower cavity 34 from above.
As shown in FIG. 9, the movable contact piece 58 is inserted into the lower insertion groove 74 </ b> D, and the contact portion 60 is in elastic contact with the front end portion received by the receiving surface 79 of the fixed contact piece 57. At the same time, the high-order portion 63 is fitted into the escape groove 76, and the upper end of the pressed plate 64 protrudes from the upper surface of the hood portion 32 on the left side of the locked portion 40.

The fixed contact piece 57 and the movable contact piece 58 constitute a switch portion 85. Therefore, the short terminal 50, that is, the upper terminal piece 51U and the lower terminal piece 51D are mounted with the switch portion 85 closed. It is attached to the hole 70.
Similarly, the pair of short terminals 50, that is, the upper terminal piece 51U and the lower terminal piece 51D are also mounted in the right mounting hole 70 in a state where the switch portion 85 is closed. At that time, the upper end of the pressed plate 64 provided on the movable contact piece 58 protrudes from the upper surface of the hood portion 32 on the right side of the locked portion 40.

Thus, when two sets of short terminals 50 are attached to the male housing 30, the corresponding male terminals 20 connected to the ends of the electric wires 25 are inserted into the cavities 34 provided in the male housing 30. Is done. Each male terminal 20 is pushed in while elastically displacing the corresponding contact pieces 53U and 53D and protruding the tab 22 from the terminal insertion port 35. When the tab 20 is pushed into a predetermined position, the male terminal 20 is prevented from being detached by the lance 36 and accommodated. The At this time, the contact portions 55 of the corresponding contact pieces 53U and 53D are elastically pressed and brought into contact with the upper surface of the main body portion 31 of each male terminal 20.
On the other hand, since the switch portion 85 of the short terminal 50 is closed, the male terminals 20 of the same set are short-circuited via the short terminal 50.

  In addition, both wires 25 of the same set are connected to each other via a short terminal 50 provided with a switch unit 85. In other words, there are two sets of two electric wires 25 provided with the switch unit 85 interposed therebetween. A path is formed. In this embodiment, the fitting detection circuit is formed by connecting the two conductive paths in parallel to form a closed loop.

Both housings 10 and 30 are fitted as follows. As described above, the male housing 30 to which the short terminal 50 and the male terminal 20 are attached is attached in advance to a device or the like (not shown) by inserting and attaching the cassette portion 47 to the mating bracket. On the other hand, a female terminal (not shown) connected to the end of the electric wire is accommodated in the female housing 10. From this state, as shown by the arrow in FIG. 9, the female housing 10 is fitted into the hood portion 32 of the mating male housing 30.
When the fitting progresses, as shown in FIG. 10, the bent portion 17 at the front end of the lock member 11 comes into contact with the guide surface 45 of the locked plate 43 from the inclined surface 42 of the pedestal 41 in the locked portion 40. Rides on the locked plate 43 while being elastically displaced.

When the female housing 10 is pushed in by a predetermined amount, that is, properly fitted, the lock surface 14 at the front end of the lock groove 13 passes through the locked plate 43 as shown in FIG. While being restored and deformed, the locked portion 40 fits into the lock groove 13 and is locked by the lock surface 14, whereby the housings 10 and 30 are properly connected to each other with the male terminals 20 and female terminals facing each other properly connected. Locked to the mated state.
During this locking operation, the lock member 11 is restored to its original posture and comes into contact with the upper surface of the hood portion 32, so that the left and right ends of the lock member 11 protrude above the left and right relief grooves 76. Since the plate 64 is pressed, as shown in the figure, the distal end side of the movable contact piece 58 provided with the pressed plate 64 is bent downward, and the contact portion 60 is separated from the fixed contact piece 57.

  As described above, since the switch portion 85 is opened in each pair of short terminals 50, the short circuit between the male terminals 20 forming a pair is released. In addition, since the switch portions 85 of both conductive paths connected in parallel are opened, the fitting detection circuit is disconnected, and thus the male and female housings 10 and 30 are properly fitted. , Detected electrically.

As described above, according to the present embodiment, the short-circuit function between the male terminals 20 and the electrical fitting detection function between the male and female housings 10 and 30 can be performed using the common short terminal 50. Therefore, compared with the case where the short terminals are individually provided for each function, the mounting space for the short terminals 50 can be reduced, and the male housing 30 can be reduced in size, which in turn contributes to the downsizing of the entire connector. Further, since only one type of short terminal 50 has to be manufactured, the manufacturing cost can be reduced.
Furthermore, since it is a structure which cuts a fitting detection circuit using the restoration operation | movement of the lock member 11 which operate | moves only after both housings 10 and 30 operate | move normally, fitting detection can be performed with high reliability. it can. In addition, since the fitting detection circuit is formed by connecting the two conductive paths provided with the switch portion 85 in parallel to each other, erroneous detection can be prevented more reliably.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above embodiment, the case where there are two short-circuited portions between the terminal fittings is illustrated, but one or more than three locations may be provided depending on the number of terminal fittings to be attached.
(2) Similarly, the location where the fitting detection is performed may be only one location or three or more locations.
(3) Contrary to the above embodiment, the short terminal may be mounted on the female housing side.
(4) Moreover, you may make it provide a locking member and a to-be-locked part in the housing side opposite to the said embodiment.

The front view of the male housing which concerns on one Embodiment of this invention Plan view Rear view Plan view of short terminal Side view Same perspective view XX sectional view of FIG. YY sectional view of FIG. Sectional drawing before the fitting of the male and female housing in the ZZ line of FIG. Cross section during the mating Sectional view when the mating is completed

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Female housing 11 ... Lock member (lock mechanism part)
13 ... Lock groove 14 ... Lock surface 20 ... Male terminal (terminal fitting)
30 ... Male housing 40 ... Locked part (lock mechanism part)
50 ... Short terminal 51U, 51D ... Terminal piece 53U, 53D ... Contact piece (contact part)
57 ... Fixed contact piece 58 ... Movable contact piece (movable contact)
64: Pressed part (engagement part)
70 ... Mounting hole 85 ... Switch part

Claims (3)

A pair of housings that can be fitted together,
Either one of the housings is provided with a short terminal capable of short-circuiting the terminal fittings accommodated in the housing, and the short terminal is provided with a switch portion that can be switched between connection and disconnection. A mating detection circuit with a short terminal is configured,
And between the two housings is provided with a lock mechanism portion that locks when both housings are properly fitted,
The connector is characterized in that the switch portion of the short terminal is always in a connected state, and when the two housings are properly fitted, the switch mechanism is engaged and disconnected. The lock mechanism is provided with a lock member that can be elastically displaced and a locked portion that can be locked to the lock member in one housing and the other housing, and in both the housings, the lock member is elastically displaced. The lock member is restored and displaced to be locked to the locked portion and engaged with the switch portion of the short terminal. The connector according to claim 1, wherein the connector is cut. The short terminal includes a pair of terminal pieces each having a contact portion that individually contacts the terminal metal fitting, and one switch piece is provided with a movable contact that can be brought into and out of contact with the other terminal piece. And the movable contact is provided with an engaging portion that engages with the lock mechanism portion and displaces the movable contact in a direction away from the counterpart terminal piece. The connector according to claim 1 or 2.

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