JPH0973954A - Fitting detection connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen connectors which need special maintenance. SOLUTION: A lock arm 13 is formed in the side of a female side connector 10, and a joining projected part 23 is formed and also a fitting detecting terminal 30 to be driven by reciprocal movement of the lock arm 13 is installed in the side of a male side connector 20. Consequently, the fitting detecting terminal 30 is installed only in one connector housing and connector housings which need special maintenance are limited to be ones in one sides.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting detection connector capable of detecting whether or not a fitting state is achieved by a predetermined fitting detection terminal.

[0002]

2. Description of the Related Art Conventionally, as a fitting detection connector of this kind, one shown in FIG.

In the figure, one connector housing 1
A pair of fitting detection terminals 2 and 2 are juxtaposed so as to project toward the mating connector housing 3, and the mating connector housing 3 faces the pair of mating detection terminals 2 and 2, respectively. The short metal fitting 4 is provided with the arm portions 4a, 4a arranged as a pair and the short portion 4b connecting the both arm portions 4a, 4a. A guide slope 5 is formed on the connector housing 1 side so that the arms 4a, 4a are electrically connected to the fitting detection terminals 2, 2 only at the proper fitting position.

When the two connector housings 1 and 3 are brought closer to each other for fitting, the arm portions 4a, 4a are bent upward along the guide slope 5 and, at the regular fitting position, the arm portions 4a, 4a. 4a is pushed by the fitting detection terminals 2 and 2 when returning from the guide slope 5, and the fitting detection terminals 2 and 4a are pressed.
2 conducts.

[0005]

[Background of the Invention] The background of mating detection is
The purpose is to ensure that the important security components are activated. However, it is not a problem if the fitting detection terminals 2 and 2 and the short-circuit metal fitting 4 themselves have a defective conduction. Therefore, it is necessary to manage the manufacturing process and the carrying process differently from those of other connectors.

The above-described conventional fitting detection connector has a problem that such special management must be applied to the male and female connectors.

The present invention has been made in view of the above problems, and an object thereof is to reduce the number of connectors requiring special management.

[0008]

In order to achieve the above object, the invention according to claim 1 provides a pair of connector housings, and a lock arm formed in one connector housing and engageable with a mating connector housing. And a fitting detection terminal that is attached to any one of the connector housings in a pair and whose conduction state changes based on the engaging operation of the lock arm.

According to a second aspect of the present invention, a pair of connector housings, an engaging projection and a lock arm which are formed on the connector housing and engage with each other through a bending operation and a returning operation, and are mounted on one connector housing. And a fitting detection terminal whose conduction state changes in synchronization with the engagement operation of the lock arm.

According to a third aspect of the present invention, in the fitting detection connector according to the second aspect, the fitting detection terminal changes its conduction state in synchronization with the return operation of the lock arm. .

Further, the invention according to claim 4 is the invention according to claim 3.
In the fitting detection connector according to the second aspect, the fitting detection terminal is arranged at the return operation position of the lock arm in the connector housing on the side where the engagement protrusion is formed.

Further, the invention according to claim 5 is the invention according to claim 3.
In the fitting detection connector according to the item [4], the fitting detection terminal is arranged in the insertion hole of the engaging protrusion in the lock arm.

Further, in the invention according to claim 6, a pair of abuttable fitting detection terminals are formed only on one connector housing, and the fitting detection terminals are driven by the returning operation of the lock arm to establish a conduction state. Is configured to change.

In the invention according to claim 7, the fitting detection terminal is
It consists of a single-shaped terminal base material that has a contact portion protruding laterally at the tip of an elongated terminal body, and the pair of terminal base materials are mounted in parallel with each other in an inverted posture so that the contact portions can contact and separate from each other. It is made to be the composition.

According to the invention of claim 8, the fitting detection terminal is
The plate thickness of the portion that bends when the conduction state changes is thinner than that of the portion that does not bend.

[0016]

In the invention according to claim 1 configured as described above, when the lock arm engages with the mating connector housing, it is fitted to one of the connector housings in a pair. The conduction state of the detection terminal changes, and it is determined that both connector housings are properly fitted. Since the fitting detection terminal is mounted only on one of the connector housings, only this connector housing needs to be under special management.

In the invention according to claim 2 configured as described above, an engaging protrusion and a lock arm are formed in each of the pair of connector housings, and when the lock arm passes over the engaging protrusion. It engages after bending and returning. Here, one of the connector housings is fitted with fitting detection terminals facing each other,
The conduction state changes in synchronization with the engaging operation of the lock arm. Since the fitting detection terminal is mounted only on one of the connector housings, only this connector housing should be under special management.

Further, in the invention according to claim 3 configured as described above, the conduction state of the fitting detection terminal changes in synchronization with the return operation of the lock arm.

Further, in the invention according to claim 4 configured as described above, since the fitting detection terminal is arranged at the return operation position of the lock arm in the connector housing on the side where the engagement projection is formed. , The conductive state is changed by being driven during the return operation.

Further, in the invention according to claim 5 configured as described above, the fitting detection terminal is arranged in the insertion hole into which the engaging protrusion of the lock arm is inserted, and the lock arm and the engaging protrusion are engaged with each other. When they are fitted together, the engaging projections enter the insertion holes to drive the lock arm and change the conduction state.

Further, in the invention according to claim 6 configured as described above, a pair of fitting detection terminals capable of abutting is formed on only one connector housing, and the fitting detection terminals are fitted together by the return operation of the lock arm. The detection state is driven to change the conduction state.

Further, in the invention according to claim 7 configured as described above, since the pair of fitting detection terminals that come into contact with and separate from each other are composed of a single-shaped terminal base material,
There is no need to manufacture a separate shape of the mating detection terminal.

Further, in the invention according to claim 8 configured as described above, since the fitting detection terminal can be easily bent when the lock arm is engaged, the elastic detection of the fitting detection terminal is prevented. The force does not act excessively on the lock arm.

[0024]

As described above, according to the inventions of claims 1 and 2, it is possible to make only one connector housing, in which the fitting detection terminal is arranged, special management. A sensing connector can be provided.

Further, according to the third aspect of the invention, since the conduction state is changed in synchronization with the returning operation, the detection can be made substantially at the proper fitting position, which is accurate.

Further, according to the invention of claim 4, since the lock arm is arranged at the return operation position, the fitting detection terminal can be arranged on the side not equipped with the lock arm.

Further, according to the invention of claim 5, since it is arranged in the insertion hole of the engaging projection in the lock arm,
The fitting detection terminal can be arranged on the side equipped with the lock arm.

Further, according to the invention of claim 6,
It is possible to provide a fitting detection connector in which only one of the connector housings in which the fitting detection terminal is arranged can be specially managed.

Further, according to the invention of claim 7, it is not necessary to prepare terminal base materials having different shapes for the pair of fitting detection terminals, so that the cost can be reduced.

Further, according to the invention of claim 8, there is no possibility that the engaging reaction of the lock arm will be hindered by the elastic reaction force of the fitting detection terminal.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> The first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a sectional view showing a fitting detection connector according to this embodiment.

In FIG. 1, the female connector 10 is formed in an outer box shape having a plurality of terminal accommodating chambers 11, and the male connector 20 is a bottomed cylinder into which the female connector 10 can be inserted. It is formed into a shape. The female-side connector 10 accommodates the female-side terminal fitting 12 in each terminal accommodating chamber 11, and when inserted into the normal male-side connector 20 with a bottom, the female-side connector 12 is supported by penetrating the inner back wall of the male-side connector 20. The male-side terminal fitting 22 is inserted into the female-side terminal fitting in the terminal accommodating chamber 11 through the front opening of the female-side connector 10 to conduct electricity.

At the central portion in the width direction of the ceiling surface of the male side connector 20 and at a position near the opening, a substantially wedge-shaped engaging projection 23 facing the inclined surface is formed on the opening side. The engaging projection 23 is provided on the upper surface in the center in the width direction.
A lock arm 13 is formed facing the. The lock arm 13 is provided with an arm portion 13a that extends upward from the front end of the upper surface of the female connector 10 and is bent and extends rearward. The lock arm 13 has a protrusion for finger hanging on the rear end upper surface of the arm portion 13a. 13b is formed. When the connectors 10 and 20 are properly fitted, the connecting portion of the arm portion 13a with the protrusion 13b faces the engaging protrusion 23, and the engaging protrusion 23 can be inserted into the position to vertically penetrate the connector. A hole 13c is formed.

In this embodiment, the box-shaped female-side connector 10 is inserted into the male-side connector 20 having a bottomed cylindrical shape to be fitted, but the fitting mode of the connector is not particularly limited. Not a thing. Further, the lock arm 13 and the engagement protrusion 23 may be in any relationship as long as one of them is bent while coming into contact with the other and is returned to engage with the other. Therefore, the lock arm 13 itself may be a seesaw type, or the side of the engagement protrusion 23 may be groove-like.

Fitting detection terminals 30 as shown in FIGS. 2 and 3 are provided on the ceiling surface of the male connector 20. The fitting detection terminal 30 has a short metal fitting 31 disposed in the width direction on the opening side of the engagement protrusion 23, and similarly to the male terminal metal fitting 22 so that its tip faces the short metal fitting 31. It is composed of a pair of detection fittings 32, 32 which are supported by penetrating the inner back wall of the male side connector 20. The detection fittings 32, 32 extend parallel to the opening direction from the inner wall along the ceiling surface of the male connector 20, and the tip portions thereof are bent slightly downward so as to face the lower surfaces of the left and right ends of the short fitting 31. Then they are facing each other with a slight gap.
The bent portion of the tip is located on the left and right with the engaging projection 23 sandwiched therebetween, and faces the arm portion 13a of the lock arm 13. The lock arm 13 is inserted so that the engaging protrusion 2
When getting over 3, the bent portions of the detection fittings 32, 32 do not come into contact with the arm portion 13a while the engaging projection 23 comes into contact with the arm portion 13a and the lock arm 13 is bent downward. However, when the lock arm 13 is inserted to the normal position, the engaging projection 23 enters the insertion hole 13c and the arm portion 13a performs a returning operation.
a moves upward, and at this time, the bent portions of the detection fittings 32, 32 are pushed upward. Then, the detection fitting 32,
The tip of 32 comes into contact with the short metal fitting 31 and becomes conductive.

In this embodiment, the fitting detection terminal 30 is used.
Although the short metal fitting 31 and the pair of detection metal fittings 32 are configured as described above, it may be driven in response to the fitting operation of the lock arm 13 to change the conduction state. Therefore, it is not always necessary to have such a configuration, and various configurations can be adopted, for example, as shown in FIGS. 4 to 8. In the examples shown in FIGS. 4 to 8, all are penetrated and pressed into the inner wall of the male side connector 20,
Workability is good because the male side terminal fittings 22 can be attached at the same time. Further, the example shown in FIG. 8 shows an example in which the press-fitting positions are bent at an intermediate position so as not to overlap each other.

Further, in this embodiment, the engaging projection 2
The fitting detection terminal 3 is provided on the side of the male connector 20 on which the 3 is formed.
Although 0 is mounted, it may be driven in synchronization with the fitting operation of the lock arm 13, and as shown in FIG. 9, the lock arm 13 may be formed on the female connector 20 formed side. it can. In this example, a pair of detection fittings 34a and 34b are provided below the insertion hole 13c formed in the lock arm 13.
At the beginning, both of the detection metal fittings 34a and 34b are electrically connected, but when the engaging projection 23 enters the insertion hole 13c, it is abutted against one of the detection metal fittings 34a and pushed down to become non-conductive with the detection metal fitting 34b. To do.

Next, the operation of this embodiment having the above configuration will be described.

When the female connector 10 and the male connector 20 are not fitted, the detection fittings 32, 32 arranged on the ceiling surface of the male connector 20 are separated from the short fitting 31. Both the detection fittings 32 are non-conductive.

When the female connector 10 is inserted into the male connector 20, the arm portion 13a of the lock arm 13 hits the slope formed on the opening side of the engaging protrusion 23,
It is inserted while being bent downward. Engaging projection 23
While both are striking the arm 13a, both detection fittings 3
2, 32 do not contact the arm portion 13a, and the short metal fitting 3
Neither 1 is conducting.

However, when the female connector 10 is inserted to the normal position in the male connector 20 so that the female terminal fitting 12 and the male terminal fitting 22 are completely conductive, as shown in FIG. The protrusion 23 faces the insertion hole 13c of the lock arm 13 and the arm portion 13a returns. Then, the detection fittings 32 located on both sides of the engagement protrusion 23,
32 contacts the arm portion 13a and is pushed up, and is pressed against the short fitting 31. Then, both detection metal fittings 3
Since the terminals 2 and 32 are electrically connected via the short metal fitting 31, it can be determined that the electrical connection between the two detection metal fittings 32 and 32 has changed and the fitting has been completed.

As described above, the lock arm 13 is formed on the female connector 10 side, the engaging projection 23 is formed on the male connector 20 side, and the fitting operation driven by the return operation of the lock arm 13 is performed. Since the fitting detection terminal 30 is provided, the fitting detection terminal 30 is provided only on one connector housing, and only one connector housing needs special management.

<Second Embodiment> Next, a second embodiment of the present invention.
This will be described with reference to FIGS. 11 to 15. The fitting detection connector of this embodiment includes a male side connector 40 and a female side connector 50 which can be fitted and separated from each other. The male connector 40 is provided with a hood portion 41, and when the female connector 50 is fitted in the hood portion 41, the male terminal fitting 42 and the female connector 50 mounted in the male connector 40 are inserted into the male connector 40. The accommodated female-side terminal fitting 51 is electrically connected. The male-side connector 40 is placed at an end position of the upper surface of the circuit board P and is fixed in a state where the hood portion 41 is opened laterally. Further, from the rear surface of the male-side connector 40 of the male-side terminal fitting 42. Leg 42 protruding and bent downward
A is inserted into the circuit board P and is connected to a circuit (not shown) on the circuit board P by soldering.

An opening 43 is formed in the upper plate portion of the hood portion 41 of the male side connector 40 so as to communicate between the inner and outer surfaces thereof. The opening 43 is in the front-rear direction of the male connector 40 (direction from the opening edge of the hood 41 toward the back surface).
The rear end portion reaches the rear end edge of the male connector 40. The front edge of the opening 43 has an engaging portion 44 with which a lock arm 53 described later is engaged.
It has become.

Further, on the back surface of the male side connector 40, there is a fitting detection terminal insertion opening 4 which is opened continuously with the opening 43.
5 are formed. A notch is formed on the left side edge when viewed from the back side of the fitting detection terminal insertion opening 45 (from the lower left to the upper right in FIG. 11), and the left notch on the right side edge. A cutout is also formed at a position lower than that. The notch formed by providing the height difference is continuous toward the inside of the hood portion 41 to form the holding grooves 46H and 46L.

Of the two holding grooves 46H and 46L,
A holding groove (hereinafter, referred to as an upper left holding groove) 56H provided at a high position on the left side has a depth reaching the engaging portion 44 along the ceiling surface of the hood portion 41. On the other hand, a holding groove 546L provided at a lower position on the right side (hereinafter referred to as a lower right holding groove) 546L
Although not shown, has a depth to a position closer to the engaging portion 44, and the depth end is opened in the hollow of the hood portion 41. The fitting detection terminals 47H and 47L are fitted into the holding grooves 46H and 46L by press fitting from the back side.

Next, the fitting detection terminals 47H and 47L will be described. The fitting detection terminals 47H and 47L are made of a terminal base material 48 obtained by punching a thin metal plate into a predetermined shape. As shown in FIG. 14, the terminal base material 48 has a contact portion 48B extending laterally at right angles from the tip of the terminal body 48A having an elongated shape as a whole.
Has a protruding shape. The contact portion 48B is formed with a contact portion 48C protruding in a curved surface by press working, and the end portion of the terminal body 48A opposite to the contact portion 48B is formed with a board insertion portion 48D having a reduced width. Has become.
Then, the terminal main body 48A is bent at a predetermined position at a right angle, and the fitting detection terminals 47H and 47L are thus formed.
Is obtained.

When the fitting detection terminals 47H and 47L are installed in the two holding grooves 46H and 46L, the fitting detection terminal 47H is located in the hood portion 4 in the upper left holding groove 46H.
The contact portion 48B is arranged along the ceiling surface of No. 1 so that the contact portion 48B projects rightward and the contact portion 48C bulges downward. On the other hand, in the lower right holding groove 46L, the fitting detection terminal 47L is held in a state in which the contact portion 48B is projected to the left and the contact portion 48C is bulged upward. The contact portion 48B of the lower right fitting detection terminal 47L is positioned directly below the contact portion 48B of the upper left fitting detection terminal 47H with a space, and from the tip of the holding groove 46L to the hood portion 41. By projecting into the hollow (not shown), it is possible to bend in the vertical direction (direction in which the upper left contact portion 48B is brought into contact with or separated from the contact portion 48B).

The fitting detection terminals 47H and 47L mounted in the above-mentioned two holding grooves 46H and 46L are formed from the same terminal base material 48, although the overall shapes are different from each other. . That is, when the terminal base material 48 in the direction in which the contact portion 48B is projected in the lower right direction as shown in the upper left position of FIG. 14 is inverted by 180 ° with respect to the virtual axis of the terminal main body 48A in the longitudinal direction, As shown in the lower position, the contact portion 48B is projected in the upper left direction, and when the terminal base materials 48, 48 are aligned, the contact portions 48B, 48 are formed.
B are arranged one above the other, and their contact portions 48C,
The 48Cs come to face each other.

Furthermore, the fitting detection terminals 47H, 47 of both sides are
Since L is arranged at different heights with respect to the circuit board P, the bending positions of the terminal body 48A are made different from each other, thereby absorbing the height difference. That is, as shown in FIGS. 14 and 15, the total length of the terminal main body 48A is set to "L", and the fitting detection terminals 47H and 47L of both terminals are set.
If the height difference of the lower fitting detection terminal 47L is "H" and the height of the contact portion 48B of the lower fitting detection terminal 47L is "A", the length of the horizontal portion of the lower fitting detection terminal 47L is "L-. "A", and the length of the horizontal portion of the higher fitting detection terminal 47H is "LAH". Therefore, the insertion position of the lower fitting detection terminal 47L on the circuit board P is deviated rearward by "H" from the insertion position of the higher fitting detection terminal 47H.

Next, the female connector 50 will be described. A recess 52 in the front-rear direction is formed on the upper surface of the female connector 50 so as to correspond to the opening 43 of the male connector 40, and a lock arm 53 is provided in the recess 52.
Extends cantilevered from the front edge of the female connector 50 toward the back. An engagement protrusion 54 is formed on the upper surface of the lock arm 53 to engage with the locking portion 44 of the male connector 40 and hold both connectors 40 and 50 in a state where they cannot be pulled out.

Next, the operation of the present embodiment will be described. When the male connector 40 and the female connector 50 are not mated, the contact portion 48B of the lower right fitting detection terminal 47L is separated from the contact portion 48B of the upper left fitting detection terminal 47H, as shown in FIG. Both fitting detection terminals 47H, 47
L is in a non-conducting state.

When the female connector 50 is fitted into the hood portion 41 of the male connector 40, the engaging protrusion 54 of the lock arm 53 engages with the opening edge of the hood portion 41 at the slope 54A. The lock arm 53 is bent downward, and the engagement protrusion 54 moves inward while rubbing the ceiling surface of the hood portion 41. During this time, both fitting detection terminals 47H, 4
Since 7L remains non-conductive, both connectors 40,
It is determined that 50 is not yet held in the normal fitting state.

When both connectors 40, 50 reach the proper fitting state, the engaging projection 54 is disengaged from the ceiling surface and the lock arm 5 is released.
3 is returned and displaced upward by the elastic restoring force, the engaging projection 54 enters the opening 43 and engages with the engaging portion 44, and both connectors 40 and 50 are held in a non-separable manner.

With the engaging operation of the lock arm 53,
The engaging protrusion 54 is the contact portion 48 of the lower right fitting detection terminal 47L.
B is pushed up from below to be pressed against the contact portion 48B of the upper left fitting detection terminal 47H (see FIG. 13). Then, both fitting detection terminals 47H and 47L are brought into conduction, and based on this, it is determined that both connectors 40 and 50 are held in the normal fitting state.

When the lock arms 53 are not displaced upward due to the engagement protrusions 54 or the like despite the fact that both connectors 40 and 50 have reached the normal fitting state, the engagement is performed. Since the projection 54 does not securely engage with the engaging portion 44, both connectors 40 and 50 are not locked. In this case, since the engagement protrusion 54 cannot contact both contact portions 48B, 48B, both fitting detection terminals 47H,
It is correctly determined that 47L remains non-conductive and that both connectors 40 and 50 are not yet held in the properly fitted state.

In the present embodiment, a pair of fitting detection terminals 47H and 47L that come into contact with and separate from each other are mounted only on the male side connector 40. Therefore, only the male connector 40 side needs special management regarding the operation of the fitting detection, and the female connector 50 does not need such management.

Further, in the present embodiment, since the pair of fitting detection terminals 47H and 47L that come into contact with and separate from each other are formed by using the terminal base material 48 having a single shape, both fitting detection terminals 47H and 47L are formed. The cost can be reduced as compared with the case where 47H and 47L are molded using different terminal base materials.

In the second embodiment, the lock arm 5
Although the engaging protrusion 54 formed on the connector 3 is engaged with the engaging portion 44 formed on the opening 43 of the male connector 40,
According to the present invention, the form of engagement between the lock arm 53 and the mating connector is not limited to this. A protrusion is provided on the mating connector so that the protrusion and the protrusion of the lock arm engage with each other. May be.

In the second embodiment, both connectors 4 are
When 0 and 50 are locked in the normal fitting state, both fitting detection terminals 47H and 47L are configured to change from the non-conducting state to the conducting state. However, according to the present invention, conversely, both connectors are connected. It is also possible to adopt a configuration in which both fitting detection terminals shift from the conductive state to the non-conductive state when is locked in the normal fitting state.

Further, in the second embodiment, the fitting detection terminals 47H and 47L and the lock arm 53 are provided in different connectors from each other. However, according to the present invention, the fitting detection terminals of the lock arm 53 are provided. It may be configured to be provided in the female connector 50 provided.

<Third Embodiment> Next, a third embodiment of the present invention.
This will be described with reference to FIG. In this embodiment,
The modification of a fitting detection terminal is shown. The fitting detection terminal 60 of this embodiment is formed by using a profiled material. The profiled material has a constant cross section when cut in parallel with the length direction of the fitting detection terminal 60, and the cross-sectional shape has a plate thickness at the tip portion of the terminal body 61 and the contact portion 62 formed at this tip portion. Is thin, and the plate thickness is thick in other regions, that is, in most regions of the terminal body 61. The profiled material is punched into a predetermined shape, and the contact portion 62 is pressed to form the contact portion 6.
The fitting detection terminal 60 is obtained by forming 3 and bending the terminal body 61.

In the fitting detection terminal 60, as shown in FIG.
Since the plate thickness of the tip end portion that is elastically bent by the engagement operation of the lock arm (not shown in FIG. 6) is thin, it is easy to bend. Therefore, the elastic reaction force acting on the lock arm from the fitting detection terminal 60 side when bent is small, and the engagement operation of the lock arm is caused by the elastic reaction force of the fitting detection terminal 60. The reliability of the locking operation can be improved without any trouble. In addition, since the strength is high in most regions of the terminal main body 61 having a large plate thickness, bending deformation is difficult.

<Fourth Embodiment> Next, a fourth embodiment of the present invention.
This will be described with reference to FIG. In this embodiment,
The fitting detection terminal 70 for the purpose of facilitating bending similarly to the third embodiment will be described.

In this embodiment, a terminal base material (not shown) obtained by punching a metal plate material having a constant plate thickness into a predetermined shape is used. The width of the terminal base material is narrow at the tip portion of the terminal body 71 and the contact portion 72 formed at the tip portion,
In the other region, that is, in most of the region of the terminal main body 71, the region is made to be approximately twice as wide as the tip portion by projecting laterally. The wide projecting portion 73 is bent so as to be inverted along the fold line in the length direction. As a result, since the single-layer tip portion has a thin plate thickness, it is easy to bend, and in the other region, two sheets are stacked and the plate thickness is large, so high strength is secured.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a fitting detection connector according to a first embodiment of the present invention.

FIG. 2 is a front view of the fitting detection connector as viewed from the opening of the male connector 10. FIG.

FIG. 3 is a perspective view schematically showing an arrangement state of fitting detection terminals in the fitting detection connector.

FIG. 4 is a perspective view showing a modified example of the fitting detection terminal in the fitting detection connector.

FIG. 5 is a perspective view showing a modified example of the fitting detection terminal in the fitting detection connector.

FIG. 6 is a perspective view showing a modified example of the fitting detection terminal in the fitting detection connector.

FIG. 7 is a perspective view showing a modified example of the fitting detection terminal in the fitting detection connector.

FIG. 8 is a perspective view showing a modified example of the fitting detection terminal in the fitting detection connector.

FIG. 9 is a partial perspective view showing an example of arranging a fitting detection terminal on a female connector in the fitting detection connector.

FIG. 10 is a cross-sectional view of the mating detection connector in a mating completed state.

FIG. 11 is an exploded perspective view of the fitting detection connector according to the second embodiment.

FIG. 12 is a cross-sectional view of the male connector with the female connector not fitted.

FIG. 13 is a cross-sectional view of a mating detection connector in a mating completed state.

FIG. 14 is a perspective view showing a state before bending of a terminal base material forming a fitting detection terminal in the fitting detection connector.

FIG. 15 is a partially cutaway enlarged side view showing a state where the fitting detection terminal of the fitting detection connector has been bent.

FIG. 16 is a perspective view showing a modified example of the fitting detection terminal according to the third embodiment.

FIG. 17 is a perspective view showing a modified example of the fitting detection terminal according to the fourth embodiment.

FIG. 18 is a schematic perspective view showing a fitting detection terminal in a conventional fitting detection connector.

[Explanation of symbols]

 10 ... Female side connector 13 ... Lock arm 13a ... Arm part 13b ... Protrusion part 13c ... Insertion hole 20 ... Male side connector 23 ... Engagement protrusion 30 ... Fitting detection terminal 31 ... Short metal fitting 32 ... Detection metal fitting 34a ... Detection metal fitting 34b ... Detection metal fittings 40 ... Male side connectors 47H, 47L, 60,70 ... Fitting detection terminals 50 ... Female side connector 53 ... Lock arm

Claims (8)

[Claims] 1. A pair of connector housings, a lock arm formed in one of the connector housings and engageable with a mating connector housing, and a pair of the connector housings attached to one of the connector housings. And a fitting detection terminal whose conduction state changes based on the engaging operation of the fitting detection connector. 2. A pair of connector housings, an engagement protrusion and a lock arm which are respectively formed on the connector housing and engage through a bending operation and a returning operation, and are attached to one of the connector housings and face each other,
A fitting detection connector, comprising: a fitting detection terminal whose conduction state changes in synchronization with the engaging operation of the lock arm. 3. The fitting detection connector according to claim 2, wherein the fitting detection terminal changes its conduction state in synchronization with the returning operation of the lock arm. 4. The fitting detection connector according to claim 3, wherein the fitting detection terminal is arranged at a return operation position of the lock arm in the connector housing on the side where the engagement protrusion is formed. A mating detection connector characterized in that 5. The fitting detection connector according to claim 3, wherein the fitting detection terminal is arranged in an insertion hole of the engagement protrusion of the lock arm. . 6. A pair of abuttable fitting detection terminals are formed only on one connector housing, and the fitting detection terminals are driven by the return operation of the lock arm to change the conduction state. Characteristic mating detection connector. 7. The fitting detection connector according to any one of claims 1 to 6, wherein the fitting detection terminal is a single-shaped terminal having a laterally protruding contact portion at a tip of an elongated terminal body. A fitting detection connector made of a base material, wherein a pair of terminal base materials are mounted in parallel in an inverted posture so that the contact portions face each other so that they can come into contact with and separate from each other. 8. The fitting detection connector according to any one of claims 1 to 7, wherein the fitting detection terminal is bent at a portion where a bending occurs when the conductive state changes. A mating detection connector characterized by being molded thinner than the non-existing part.