JP3074299B2 - Connector with shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector with a shutter mainly used for a power plug.

[0002]

2. Description of the Related Art Conventionally, as a power supply connector for connecting a battery pack, a connector with a shutter having a structure shown in FIGS. 7 to 9 has been known. In this connector, a connector fitting portion 3 is provided on a bottom plate 2 of a housing 1 so as to fit a mating connector a integrated with a battery pack along the mating connector a. The male contacts 4, 4 are projected.

Above the male contacts 4, 4, a shutter 5 for covering the male contacts 4, 4 is urged forward by a spring to be able to be pushed in.

The shutter 5 is retracted by sliding the mating connector a along the base plate 2 in the fitting direction, and the shutter 5 is pulled out in the opposite direction by mating the mating connector a. It is designed to be pushed out to the position to cover it.

[0005]

In the conventional connector with a shutter described above, the shutter is pushed by the mating of the mating connector and slides in the mating direction, but the mating connector is not fitted. In the state of the combination, since it is only biased by the spring,
There has been a problem that the shutter retreats due to an external force, which may damage the protruding male contact, or damage an internal electronic circuit by applying a high voltage due to static electricity.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide a connector with a shutter having a structure in which the shutter does not easily retreat except for a mating operation of a mating connector.

[0007]

SUMMARY OF THE INVENTION The features of the present invention for solving the conventional problems as described above and achieving the intended purpose are as follows.
A plurality of male contacts are projected from the front surface of the housing, and a base plate for mating guide of the mating connector is projected from the front lower portion of the front of the housing, and the male connector is not fitted to the housing. A shutter covering the outside of the contact so as to be slidable along the base plate in a fitting direction of the mating connector, and biasing the shutter forward by a spring; Has a locking edge that slides along the base plate, the base plate has a stopper having a locking hook portion that engages with the back surface of the locking edge, and a stopper that can freely move in and out of the upper surface of the base plate. The stopper is urged toward the upper surface of the base plate by a spring material, and the stopper is provided on the lower surface of the base plate by inserting a mating connector into the front surface of the locking edge. An operation protrusion is pressed down together, lies in the so engagement is released for engagement edge of the locking hook by the depressing of 該操 action projecting.

[0008] It is to be noted that stoppers are provided at at least two places along the locking edge of the shutter, and each stopper is provided with a projecting portion for operation so that the stopper can be operated individually.
Preferably, the spring member is made of a single wire, and the central portion of the wire is fixed to the lower surface of the base plate, and the stoppers are urged toward the upper surface of the base plate at both ends of the spring material.

[0009]

In the connector with a shutter according to the present invention, when the mating connector is not fitted, the locking edge of the shutter is locked by the stopper projecting from the upper surface of the base plate, and the operation in the fitting direction is prevented. I have.

In this state, when the mating connector is brought into contact with the base plate and slid in the fitting direction, the operation protrusion is pushed by the mating connector, whereby the stopper is pushed down to the lower surface side of the base plate, and the sliding of the shutter is performed. It is free and slides in the fitting direction by being pushed by the mating connector.

When the mating connector in the fitted state is pulled out, the shutter is urged in the closing direction by the spring, so that the shutter is slid to the front side with the movement of the mating connector. When the connector passes over the operation protrusion, the stopper protrudes from the upper surface of the base plate and engages with the locking edge to prevent the operation in the fitting direction.

By providing a pair of stoppers and operating each of them individually, retreat of the shutter due to mischief is prevented.

Further, the number of parts can be reduced by separately using the pair of stoppers at both ends of the spring member made of one wire.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 10 denotes a housing;
1 is a base plate at the bottom of the housing. Base plate 11
Is protruded forward from the lower front part of the housing 10 in an extended state.

At the front of both sides of the housing 10, side plates 1 are provided.
2 and 12 are extended, and the lower edge thereof is integrated with the base plate 11, and a space between the two side plates 12 and 12 is a mating connector fitting portion 13.

On the front surface of the housing 10, a pair of male contacts 14, 14 are provided in the mating connector fitting portion 13 along the inside of both side plates 12, 12 in parallel with the base plate 11. .

The mating connector fitting portion 13 is provided with a shutter 15 for closing the front and top surfaces thereof.
In the shutter 15, the upper surface closing portion 15a and the front surface closing portion 15b are integrally formed in a right-angled arrangement,
Notched windows 16, 16 through which the male contacts 14, 14 are inserted are formed at both end portions of the front closing portion 15b. The shutter 15 has both side edges of the upper surface closing portion 15a fitted in slide grooves 17, 17 formed on the inner surfaces of the side plates 12, 12, and a sliding groove 18 extending forward and backward in a central portion below the upper surface closing portion 15a. Is formed, and the base plate 11
A front-rear guide rail 19 protruding from the upper surface is fitted.

Then, both edges of the upper surface closing portion are formed in the slide groove 1.
When located at the forefront in 7, 17 the front closure 15b is located forward of the tips of the male contacts 14,14.

A pair of coil springs 21 and 21 are interposed between the front closing portion 15b and the rear plate 20 of the housing 10, thereby urging the shutter 15 forward.

The lower edge of the front closing portion 15b is a locking edge 22, and a pair of stoppers 23, 23 for locking the locking edge 22 at the protruding operation end portion is formed on the upper surface of the base plate 11. Is to be projected.

As shown in FIGS. 4 and 5, each stopper 23 has a shaft portion 24 integrally provided on the base end side rotatably supported by a bearing portion 25 provided on the lower surface of the distal end portion of the base plate 11. A triangular locking hook 26 having an upright side portion 26a on the base end side and a tapered side 26b on the front end side is integrally formed on the top surface on the tip side.

An operating projection 27 is integrally formed at a base end side of the locking hook 26 at an interval. The operation projection 27 has a tapered side 27b on the base end side of the stopper 23,
The triangular shape having the upright side 27a on the side facing the locking hook 26 is shown.

The locking hook 26 and the operation protrusion 27
Are projected from the lower surface side of the base plate 11 to the upper surface side through a window hole 28 so as to be able to freely enter and exit, and are urged toward the upper surface side of the base plate 11 by a spring material 29.

As shown in FIG. 4, the spring member 29 is formed by bending a central portion of a single wire into a U-shape to form a fixing portion 30, and bending both ends of the wire to the left and right so as to extend from each other. Further, the tip is bent at a right angle, and the pressing portions 31 and 3 are bent.
The pressing portion 31 urges the bottom surface of the stopper 23 toward the upper surface of the base plate 11.

In the drawing, reference numeral 32 denotes a bottom cover.

The shutter-equipped connector constructed as described above has a structure in which, when the shutter 15 is in a state where the mating connector is not fitted, the locking hooks 2 of both stoppers 23, 23 are provided.
6 protrudes from the rear side of the locking edge 22, thereby preventing the shutter 15 from moving in the fitting direction.

In this state, as shown in FIG. 6A, when the mating connector a is brought into contact with the base plate 11 and is slid in the fitting direction, as shown in FIG. The operation projections 27, 27 projecting from the base plate 11 are pushed, and the stoppers 23, 23
The lower surface of the locking hook 2 is rotated as shown in FIG.
The shutter 6 is pulled down to a position lower than the upper surface of the base plate 11, the operation of the shutter 15 in the fitting direction is stopped, and the shutter 15 is pushed by the mating connector a, and retreats to the fitting position.

By pulling out the mating connector a in the fitted state, the shutter 15 is pushed out by the coil springs 21 and 21 and returns to the original position.
The stoppers 23, 23 are pressing portions 31, 31 of a spring material 29.
The locking hook 26 is projected to the rear side of the locking rim 22 and returns to the original position.

[0030]

As described above, in the connector with a shutter according to the present invention, the retracting operation of the shutter is prevented by the stopper having the operating projection projecting from the upper surface of the base plate to which the mating connector is brought into contact and fitted. Since the operation in the retreating direction is made free by the mating operation of the mating connector, the retraction of the shutter is favorably prevented, and the retraction is performed only when necessary, so that high security can be obtained.

Further, by providing at least one pair of stoppers individually, it is more difficult to retreat against mischief, and the safety is further improved.

Further, by energizing the pair of stoppers with a spring material made of one wire,
The number of parts is small, the assembly is easy, and the cost is reduced.

[Brief description of the drawings]

FIG. 1 is a plan view traversing the right half of a connector with a shutter according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view taken along line AA in FIG. 1;

FIG. 4 is a bottom view of the embodiment shown in FIG. 1 with a bottom cover removed.

FIG. 5 is an enlarged sectional view of a stopper portion of the same.

FIGS. 6A to 6C are longitudinal sectional views showing operating states.

FIG. 7 is a front view of a conventional example.

FIG. 8 is a plan view of the same.

FIG. 9 is a sectional view taken along line BB in FIG. 8;

[Explanation of symbols]

 a mating connector 10 housing 11 base plate 12 side plate 13 fitting portion 14 male contact 15 shutter 15a upper surface closing portion 15b front closing portion 16 notch window 17,18 slide groove 19 guide rail 20 rear plate 21 coil spring 22 locking edge 23 Stopper 24 Shaft part 25 Bearing part 26 Locking hook part 27 Operation protrusion 27a Upright side 27b Tapered side 28 Window hole 29 Spring material 30 Fixed part 31 Pressing part 32 Bottom cover

──────────────────────────────────────────────────の Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/453

Claims (3)

(57) [Claims] A plurality of male contacts protrude from a front surface of a housing, and a base plate for mating guide of a mating connector is protruded from a front lower portion of a front surface of the housing, and the mating connector is not fitted to the housing. A connector covering the outside of the male contact in the state of slidably provided along the base plate in a fitting direction of the mating connector, and biasing the shutter forward by a spring. A stopper having a locking edge that slides along the base plate is provided on the lower edge of the front surface of the shutter, and a stopper having a locking hook that engages with the back surface of the locking edge is provided on the base plate. To be able to move in and out, and to be biased toward the upper surface of the base plate by a spring material,
The stopper integrally has an operation protrusion which is pushed down to the lower surface side of the base plate by inserting a mating connector on the front side of the engagement edge, and the engagement edge of the engagement hook portion is pushed down by the operation projection. A connector with a shutter, characterized in that the engagement with the shutter is released. 2. The connector with a shutter according to claim 1, wherein the stopper is provided at at least two places along the locking edge of the shutter, and each of the stoppers is provided with an operation projection to be operated individually. . 3. The spring material is made of a single wire, the center of the wire is fixed to the lower surface of the base plate, and the stoppers are urged at both ends of the spring material toward the upper surface of the base plate. The connector with a shutter according to claim 1.