JPH10289764A - Connector ground connection structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable fixing of a connector and ground connection with one touch. SOLUTION: A substantially inverted U-shaped connector fixing metal fitting 8 is fitted to an upper surface and a side surface of a connector 4 accommodating a metal shell 3 connected to a shield layer of a shielded electric wire 1A. And metal shell 3 to ground terminal 8d
And a hook portion 8e formed at an end of the connector fixing bracket 8 is connected to a hook hole 9 of the conductive mounting plate 9.
The connector fixing bracket 8 and the conductive mounting plate 9 are brought into contact with each other so as to be engaged with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector ground connection structure in which a connector can be fixed and a ground connection can be made with a single touch.

[0002]

2. Description of the Related Art Conventionally, as a ground connection structure for a connector as described above, one connector is attached to a conductive attachment via a support bracket, and the other connector is provided in the connector. There is a terminal unit connected to a shield of a shielded electric wire provided with a conductive ground terminal, and a support bracket provided with a ground plate for short-circuiting the ground terminal to a mounting object (Japanese Utility Model Application Laid-Open No. 3-8).
No. 4314).

[0003]

However, the above-mentioned conventional structure requires at least three parts: a ground terminal, a ground plate, and a bolt for fixing the ground plate to a mounting. Further, it is necessary to machine a screw hole for a bolt on the attachment or to tighten the bolt into the screw hole with a tightening tool. Furthermore, in a connector that does not require a ground connection, the ground terminal must be removed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described conventional problems, and has as its object to provide a connector ground connection structure in which the fixing of the connector and the ground connection can be performed with one touch. It is.

[0005]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a substantially inverted U-shape is formed on the upper surface and the side surface of a connector for accommodating a metal shell connected to a shield layer of a shielded electric wire. And the metal shell is brought into contact with the metal shell by a ground terminal, and the hook formed at the end of the connector fixing bracket is connected to the hook of the conductive mounting plate. An object of the present invention is to provide a ground connection structure for a connector, which is inserted into a hole and locked to contact and connect a connector fixing bracket and a conductive mounting plate.

According to the first aspect of the present invention, the connector fixing metal fitting is fitted to the connector, and the connector fixing metal fitting and the metal shell in the connector are contact-connected with the ground terminal. When the hook of the metal fitting is inserted into the hook hole of the conductive mounting plate and locked, the connector is fixed to the conductive mounting plate with the connector fixing metal and the connector fixing metal is connected to the conductive mounting plate at the same time. To be grounded.

According to a second aspect of the present invention, a lock portion is formed on each of the side surface of the connector and a side portion of the connector fixing metal, and the lock portions are engaged when the connector fixing metal is fitted to the connector. In addition, if the connector fixing metal fitting is locked to the connector, the connector fixing metal fitting can be fixed to the connector.

According to a third aspect of the present invention, a slit hole is formed in an upper surface of the connector, and the ground terminal is integrally formed on an upper portion of the connector fixing metal, and the connector fixing metal is fitted to the connector. If a structure is adopted in which the ground terminal is inserted into the slit hole so as to be in contact with and connected to the metal shell, the ground terminal as a separate component becomes unnecessary.

According to a fourth aspect of the present invention, a structure is provided in which a holding portion for holding the lower surface of the connector is formed above the hook portion of the connector fixing bracket, so that the connector can be inserted into the hook hole of the conductive mounting plate. By changing the position of the hook portion of the fixing bracket, the connector can be mounted with offset.

According to a fifth aspect of the present invention, the upper portion of the connector fixing metal is extended in both directions of the connector fitting, and each of the extended portions is bent downward, so that one of the extended bent portions is opposite to the connector. If both ends are brought into contact with the mating side end face and the other extended bent portion is brought into contact with the opposite mating side end face of the mating connector completely mated with this connector, both connectors are completely mated. If not, the metal fittings for fixing the connector cannot be set on both connectors.

On the other hand, the connector fixing metal fitting is applied to the upper surface of the connector accommodating the metal shell connected to the shield layer of the shielded electric wire, and the upper part of the connector fixing metal fitting is connected to the connector. Direction, and each extension is bent downward so that one extension bend comes into contact with the end face on the opposite side of the connector, and the other extension bend is connected to the connector. The extension fittings are brought into contact with a part of the metal shell of each connector while the extended bent portions are brought into contact with the end surface of the mating connector which is completely fitted with the mating connector. A structure in which the hook portion formed at the end of the bent portion is inserted into the hook hole of the conductive mounting plate and locked to make contact connection between the connector fixing bracket and the conductive mounting plate may be adopted.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 show a ground connection structure according to the first embodiment.

Although not specifically shown, the shielded electric wires 1A and 1B are stripped at their ends so that the conductor and the shield layer are exposed, and the male terminal 2 is attached to the conductor of the shielded electric wire 1A. The male terminal 2 is accommodated in a terminal housing, and the terminal housing is accommodated in a metal shell 3.
The shield layer of the shielded electric wire 1A is connected to the metal shell 3. The metal shell 3 is housed in a housing 4A of the connector 4.

A female terminal for inserting and connecting the male terminal 2 is attached to the conductor of the shielded electric wire 1B. The female terminal is housed in a terminal housing. The shield layer of the shielded electric wire 1 </ b> B is connected to the shell 5. The metal shell 5 is housed in a housing 6A of the connector 6.

When the metal shell 5 of the connector housing 6A is inserted into the metal shell 3 of the connector housing 4A as shown in FIG. 2A, the connector 6 is completely fitted to the connector 4, and The female terminal is inserted and connected, and the metal shell 5 comes into contact with the metal shell 3.

On the side surface of the connector housing 6A,
A lock claw 6a projecting in the connector fitting direction is formed, and a connector 4 is provided on a side surface of the connector housing 4A.
When the connector 6 is completely fitted to the
A lock recess 4a with which the connector a is engaged is formed so that the connectors 4 and 6 are locked at the completely fitted position.

On the other hand, a substantially inverted U-shaped connector fixing bracket 8
The connector fixing bracket 8 is adapted to be fitted to the upper surface and both side surfaces from above the connector housing 4A.

Lock projections 4b are formed on both side surfaces of the connector housing 4A, and lock projections 4b are engaged with both side portions 8a of the connector fixing bracket 8 when they are fitted to the connector housing 4A. A hole 8b is formed so that the connector fixing metal member 8 is locked to the connector housing 4A at the fitting position.

On the upper surface of the connector housing 4A,
A slit hole 4c extending to both side surfaces of the metal shell 3 in the connector housing 4A is formed, and a ground terminal 8d cut and raised downward is integrally formed on an upper portion 8c of the connector fixing bracket 8, thereby forming the connector housing 4A. When fitting the connector fixing bracket 8 to the
Are simultaneously inserted into the slit holes 4c so as to contact and contact both side surfaces of the metal shell 3.

Hooks 8e bent outward are integrally formed at the lower ends on both sides of the connector fixing bracket 8, and the hooks 8e are formed in a conductive mounting plate (vehicle panel or the like) 9 by hook holes 9a. When the connector 4 is inserted from above and locked, the connector 4 is fixed to the conductive mounting plate 9 by the connector fixing metal 8 and at the same time, the hook portion 8 of the connector fixing metal 8 is attached.
e is contact-connected to the conductive mounting plate 9. As a result, the shield layers of the shielded electric wires 1A and 1B are grounded to the conductive mounting plate 9 via the metal shells 3 and 5 and the connector fixing metal member 8.

In the case of the ground connection structure of the first embodiment, the connector fixing bracket 8 is mounted on the connector housing 4A.
Is fitted, the connector fixing bracket 8 is locked to the connector housing 4A by the engagement of the lock hole 8b and the lock projection 4b, and at the same time, the ground terminal 8d is inserted into the slit hole 4c and connected to the metal shell 3 in contact. Become so.

Thereafter, when the connector 6 is inserted into the connector 4, the connector 6 is locked to the connector 4 by the engagement between the lock claw 6a and the lock recess 4a.

Then, in this state, the hook 8e of the connector fixing bracket 8 is inserted into the hook hole 9 of the conductive mounting plate 9.
When the connector 4 is inserted from above and locked, the connector 4 is fixed to the conductive mounting plate 9 by the connector fixing metal 8 and at the same time, the hook 8e of the connector fixing metal 8 is contacted and connected to the conductive mounting plate 9. The shield layers of the shielded electric wires 1A and 1B are connected to the metal shells 3 and 5 and the connector fixing bracket 8 respectively.
And ground connection to the conductive mounting plate 9.

Therefore, the conventional bolts for fixing the ground plate to the conductive mounting object are not required, and the number of parts can be reduced. There is no need to tighten the screw holes.

The connector 4 has a connector fixing bracket 8.
Can be locked by the lock projection 4b and the lock hole 8b, and thus can be fixed to the conductive mounting plate 9 in a state where the connector fixing fitting 8 is fitted to the connector 4, so that the handling of the connector fixing fitting 8 is good.

Furthermore, since the ground terminal 8e integrally formed with the connector fixing bracket 8 can be inserted into the slit hole 4c of the connector 4 to be connected to the metal shell 3, the ground terminal as a separate component is not required. The number of parts can be reduced.

FIG. 3 shows a ground connection structure according to the second embodiment.

As compared with the first embodiment, instead of eliminating the lock projection 4b of the connector 4 and the lock hole 8b of the connector fixing member 8, the upper surface 4a of the connector housing 4A is replaced with the lock projection 4b.
At each location, a locking projection 4d for locking the connector fixing metal member 8 so as not to shift in the connector fitting direction is formed.

Further, both side portions 8a of the connector fixing bracket 8 are provided.
Above the hook portion 8e, a hold portion 8f which is bent inward to hold (lock) the lower surface of the connector housing 4A is formed.

As shown in FIG. 4, the holding portion 8f of the connector fixing member 8 may be formed by projecting the side portions 8a of the connector fixing member 8 inward.

With this ground connection structure, the connector 4 is offset by changing the position of the hook portion 8e of the connector fixing bracket 8 with respect to the hook hole 9a of the conductive mounting plate 9 so that the conductive mounting plate 9 can be offset. It becomes possible to attach to.

FIG. 5 shows a ground connection structure according to the third embodiment.

As compared with the first embodiment, the upper portion 8c of the connector fixing bracket 8 is extended in both directions of the connector fitting, and each of the extended portions 8g is bent downward. 8h is brought into contact with the end surface 6e of the connector 6 on the side opposite to the connector of the connector housing 6A, and the other extended bent portion 8i is connected to the end surface of the connector housing 4A of the connector 4 on the side opposite to the mating side of the connector housing 4A. 4e.

The extended bent portions 8h and 8i of the connector fixing bracket 8 are formed with lock holes 8j similar to the lock holes 8b of both side portions 8a, respectively, so that the end faces 4e of the connector housings 4A and 6A. , 6e formed on the lock projection 6
f (the lock projection on the end face 4e is not shown), and a hook 8k similar to the hook 8e on both sides 8a is formed at the lower end of each of the extended bent portions 8h and 8i. ,
The hook is inserted into the hook hole 9b formed in the conductive mounting plate 9 and locked.

With this ground connection structure, if the connectors 4 and 6 are not completely fitted, the extended bent portions 8h and 8i of the connector fixing bracket 8 will be connected to the connector housing 4
Since the end faces 4e and 6e of the connectors A and 6A are not brought into contact with each other, that is, the connector fixing bracket 8 cannot be set to the connectors 4 and 6, a half-fitting (defective fitting) can be automatically detected. In addition, each extended bent portion 8 of the connector fixing metal member 8 is provided.
Since h and 8i can cover the outer circumferences of the shielded wires 1A and 1B, the shielding performance is improved.

FIG. 6 shows a ground connection structure according to the fourth embodiment.

As compared with the first embodiment, the both sides 8a of the connector fixing bracket 8 and the ground terminal 8d are eliminated. Accordingly, the locking holes 8b and the hook portions 8e of the both side portions 8a are eliminated, and the lock projections 4b and the slit holes 4c of the connector housing 4A, and the hook holes 9a of the conductive mounting plate 9 are provided.
Disappears.

Further, similarly to the fourth embodiment, the upper portion 8c of the connector fixing member 8 is extended in both directions of the connector fitting direction, and each of the extended portions 8g is bent downward. The portion 8h is connected to the connector housing 6A of the connector 6.
And the other extended bent portion 8i is brought into contact with the end surface 4e of the connector housing 4A of the completely fitted connector 4 on the anti-fit side.

Hook portions 8k similar to the hook portions 8e of both side portions 8a are formed at the lower end portions of the extended bent portions 8h and 8i of the connector fixing bracket 8, and are opened to the conductive mounting plate 9. It is inserted into the hook hole 9b and locked.

Further, each part 5a (part of the metal shell 3 is not shown) of each of the metal shells 3 and 5 of each of the connectors 4 and 6 is moved outward along the outer circumference of the shielded electric wires 1A and 1B, respectively. The metal shells 3 and 5 are connected to the extended bent portions 8h and 8i of the connector fixing bracket 8 from above.
Fitting groove 8 which is fitted and contact-connected to each part 5a of the
m, and the entrance portion of the fitting groove 8m is set to be narrow so as not to come off after forcibly inserting it into each part 5a of the metal shells 3, 5 as far as it will go. In other words, the connector fixing bracket 8 can be locked to the completely fitted connectors 4 and 6 by the fitting grooves 8m and the respective portions 5a of the metal shells 3 and 5, so that the connector fixing bracket 8 is fixed to the connectors 4 and 6.
Can be fixed to the conductive mounting plate 9 in a fitted state, so that the handling of the connector fixing bracket 8 is improved.

Further, as in the above embodiments, the connector fixing metal 8 is not connected to the metal shell 3 by the ground terminal 8d, but the connector fixing metal 8 is extended and folded on a part 5a of the metal shells 3, 5. Fitting groove 8 for curved portions 8h and 8i
m, 8 m.

With this ground connection structure, similarly to the third embodiment, if the connectors 4 and 6 are not completely fitted, each of the extended bent portions 8h and 8i of the connector fixing bracket 8 is connected to the connector housing 4A. , 6A, that is, the connector fixing bracket 8 cannot be set on both connectors 4, 6, so that a half-fitting (defective fitting) can be automatically detected. Also, each of the shielded wires 1A,
Since the outer periphery of 1B can be covered, the shielding performance is improved.

Further, both side portions 8 are attached to the connector fixing bracket 8.
Since there is no a, the metal fitting 8 for fixing the connector is simplified and the material cost and the processing cost are reduced.

[0045]

As is apparent from the above description, the ground connection structure of the present invention can be used after the connector fixing metal fitting fitted to the outer surface of the connector and the metal shell in the connector are connected by the ground terminal. By one-touch operation, the hook part of the connector fixing bracket is inserted into the hook hole of the conductive mounting plate and locked, so that the connector is fixed to the conductive mounting plate with the connector fixing bracket and the connector fixing Since the metal fitting comes into contact with the conductive mounting plate and is grounded, bolts for fixing the ground plate to the conductive mounting object are not required, and the number of parts can be reduced. Processing screw holes,
Since it is not necessary to tighten the bolt into the screw hole with a tightening tool, the cost can be reduced.

Further, according to the second aspect of the present invention, if the connector fixing metal is locked to the connector, the connector fixing metal can be fixed to the connector while being fixed.
The handleability of the connector fixing bracket is improved.

Furthermore, if the ground terminal integrally formed with the connector fixing bracket is inserted into the slit hole and is connected to the metal shell, the ground terminal as a separate component is not required. In the case of a connector that does not require a ground connection, it can be dealt with by cutting or bending the connector without removing the ground terminal.

Further, according to the fourth aspect of the present invention, if the holding portion for holding the lower surface of the connector is formed in the connector fixing metal, the connector fixing metal with respect to the hook hole of the conductive mounting plate. By changing the position of the hook, the connector can be mounted with offset.

Further, if the extended bent portion of the connector fixing bracket is brought into contact with each end face of the fitted connectors, the connectors must be in a completely fitted state. Since the connector fixing bracket cannot be set on both connectors, it is possible to detect half-fitting (defective fitting).

On the other hand, each extended bent portion of the connector fixing bracket is brought into contact with each end face of both fitted connectors, and each extended bent portion is connected to the metal shell of each connector. In this structure, the metal fitting for fixing the connector is simplified and the material cost and the processing cost are reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a ground connection structure according to a first embodiment of the present invention.

FIG. 2A is a perspective view in which a ground connection structure is assembled, and FIG. 2B is a cross-sectional view.

FIG. 3 shows a ground connection structure according to a second embodiment;
(A) is an assembly perspective view, (B) is a sectional view.

4A and 4B show a ground connection structure according to a modification of the second embodiment, wherein FIG. 4A is an assembled perspective view and FIG. 4B is a cross-sectional view.

FIG. 5 is a ground connection structure according to a third embodiment;
(A) is an exploded perspective view, (B) is an assembled perspective view.

FIG. 6 shows a ground connection structure according to a fourth embodiment;
(A) is an exploded perspective view, (B) is an assembled perspective view.

[Explanation of symbols]

 1A, 1B Shielded electric wire 3 Metal shell 4 Connector 4A Connector housing 5 Metal shell 6 Connector 6A Connector housing 8 Connector fixing bracket 8d Ground terminal 8e Hook section 9 Conductive mounting plate 9a Hook hole

Claims (6)

[Claims] 1. A substantially U-shaped connector fixing metal fitting is fitted to an upper surface and a side surface of a connector accommodating a metal shell connected to a shield layer of a shielded electric wire, and the connector fixing metal and the metal shell are attached. And a ground terminal, and the hook formed at the end of the connector fixing bracket is inserted into the hook hole of the conductive mounting plate and locked, so that the connector fixing bracket and the conductive mounting plate are connected to each other. A ground connection structure for a connector, which is connected by contact. 2. The connector according to claim 1, further comprising: a lock portion formed on a side surface of the connector and a side portion of the connector fixing bracket, and the locking portion is engaged when the connector fixing bracket is fitted to the connector. The connector ground connection structure according to claim 1, wherein the connector fixing bracket is locked to the connector. 3. A slit hole is formed on the upper surface of the connector, and the ground terminal is integrally formed on the upper part of the connector fixing metal, and the connector fixing metal is fitted to the connector, and at the same time, the ground terminal is formed in the slit hole. 3. The metal shell of claim 1, wherein said metal shell is connected to said metal shell.
3. The ground connection structure of the connector described in 1. 4. The connector ground connection structure according to claim 1, wherein a hold portion for holding a lower surface of the connector is formed above the hook portion of the connector fixing bracket. 5. An upper portion of the connector fixing bracket is extended in both directions of the connector fitting direction, each of the extended portions is bent downward, and one of the extended bent portions is an end face of the connector on the side opposite to the fitting. The connector according to any one of claims 1 to 4, wherein the other extended bent portion is brought into contact with an end face on the opposite side of the mating connector completely fitted to the connector. Ground connection structure. 6. A connector fixing metal fitting is applied to an upper surface of a connector accommodating a metal shell connected to a shield layer of a shielded electric wire, and an upper portion of the connector fixing metal is extended in both directions of the connector fitting. Each extension is bent downward, and one extension is brought into contact with the end face of the connector on the side opposite to the fitting, and the other extension is fitted to the mating side completely fitted to the connector. The extension bent portions are brought into contact with a part of the metal shell of each connector while being brought into contact with the end surface of the connector on the opposite side of the mating side. A ground connection structure for a connector, wherein the formed hook portion is inserted into a hook hole of a conductive mounting plate and locked to contact and connect the connector fixing bracket and the conductive mounting plate.