JPH0533474U - connector - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a connector in which a locked state is not affected by an external force. [Structure] A pair of a female connector A and a male connector B which are fitted to each other.
And the locking projection 3 that engages with the flexible locking piece 7 is provided on the outer periphery of the male connector.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to a connector used for connecting an automobile wire harness.

[0002]

[Prior Art]

 In FIG. 4, a is a female connector and b is a male connector, which incorporates terminal fittings (not shown), which are brought into contact during fitting. A locking arm c is provided on the outer peripheral portion of the male connector b, and a locking protrusion d is provided on the outer peripheral portion of the female connector a, so that the locking arm c is locked when the connectors a and b are fitted together. It is engaged with the projection d for locking the connection of both connectors a and b (FIG. 4 (B)). In addition, e is a waterproof hood.

By the way, in the above-mentioned conventional technique, when the external force F acts on the locking arm c, the lock is automatically released, and the connectors a and b in the fitted state are disengaged, so that the terminal fitting is electrically connected. It may cause a defect and even damage the locking mechanism.

[0004]

[Problems to be solved by the device]

 The present invention was made by paying attention to the above points, and is intended to protect the lock mechanism against an external force F and stabilize the lock function.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a pair of female connectors and a male connector which are fitted to each other, a female connector having a sleeve body and a protective hood surrounding the sleeve body. It is provided at a distance from the sleeve portion, a cutout portion is formed in the sleeve portion, and a flexible lock piece is provided corresponding to the cutout portion, and the flexible lock piece is provided on the outer circumference of the male connector. We adopted a structure that provides a locking protrusion that fits.

[0006]

[Action]

 The protective hood blocks the external force on the lock mechanism that keeps the female and male connectors connected.

[0007]

【Example】

 In FIG. 1, A is a synthetic resin female connector having a male terminal metal fitting (not shown) built in the terminal accommodating chamber 1, and B is also a synthetic resin male connector having a terminal accommodating chamber 2 A female terminal fitting (not shown) is built in. A locking projection 3 is provided on the outer peripheral surface of the male connector B.

In the female connector A, a protective hood 5 is provided outside the sleeve portion 4 for receiving the male connector B with a gap G and extending further forward from the front end of the sleeve portion 4. A notch 6 inserted from the front end is formed in the sleeve portion 4, and a flexible lock piece 7 having a base portion 7a is formed between the sleeve portion 4 and the hood 5 so as to correspond to the slit portion 6 and face each other. A pair of locking holes 8 are formed in the wall. The flexible lock piece 7 may be formed integrally by inserting a slit in the sleeve portion 4. Reference numeral 9 denotes a packing holder fitted in the sleeve portion 4, which has a notch 10 at a portion corresponding to the flexible lock piece 7, and a locking projection 11 which is engaged with the locking hole 8. Have Therefore, the packing 12 is inserted into the sleeve portion 4, then the packing holder 9 is fitted and the locking projection 11 is engaged with the locking hole 8 and fixed.

In use, the male connector B is fitted into the packing holder 9 of the sleeve 4 of the female connector A and coupled, and the locking projection 3 is engaged with the flexible locking piece 7 from the notch 10. Secure the bond (Fig. 3). Reference numerals 14 and 14 'are rubber waterproof plugs fixed to the terminal fittings C and C'with the electric wire W.

The lock is released by a jig (not shown).

[0011]

[Effect of the device]

 As described above, the present invention comprises a pair of female connector and male connector which are fitted to each other. The female connector is provided with a sleeve body and a protective hood surrounding the sleeve body is provided at a distance from the sleeve body portion. Provided on the outer periphery of the male connector, and a flexible lock piece is provided corresponding to the cutout portion, and a locking projection for engaging with the flexible lock piece is provided on the outer periphery of the male connector. Since the protective hood prevents external force from reaching the lock mechanism, connection failure of the terminal fitting due to careless release of the lock can be prevented. Can be constructed with a continuous wall with few irregularities.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a pair of female and male connectors are separated according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the female connector of the above.

FIG. 3 is a sectional view of the female and male connectors in the same state as above.

FIG. 4 shows a conventional connector, (A) in a separated state,
(B) shows a binding state.

[Explanation of symbols]

 A Female connector B Male connector 3 Locking protrusion 4 Sleeve part 5 Protective hood 6 Notch part 7 Flexible lock piece

Claims (1)

[Scope of utility model registration request] 1. A pair of a female connector and a male connector which are fitted to each other. And a flexible lock piece is provided corresponding to the cutout portion, and a locking projection that engages with the flexible lock piece is provided on the outer periphery of the male connector. Connector.