JPH1197101A - Connection device with protecting function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection device equipped with a protecting function to prevent failure in an electric apparatus and associate electric shock resulting from short-circuiting by carelessness. SOLUTION: This connection device is equipped with a plug 11 and a socket 12. The socket 12 is equipped with an opening to admit insertion of the plug 11, a stopper 15 furnished at the bottom of the opening, a movable plate 13 attached rotatably to the opening, and a resilient member 14 inserted in the rotary shaft 132 of the movable plate 13. When the plug 11 is not inserted in the socket 12, the stopper 15 locks the movable plate 13 to prevent the plug 11 from being inserted into the socket 12, and when the plug 11 is inserted into the socket 12, the lower edge of the plug 11 pushes the stopper 15 to release the lock of the plate 13 to put it into rotation, which enables the plug 11 to be connected electrically with the socket 12. When the plug 11 is drawn out of the socket 12, the resilient member 14 rotates the plate 13 to cause it 13 to be locked by the stopper 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection device having a protection function for preventing a failure of electric equipment due to an inadvertent short circuit or a danger of electric shock due to exposure of a conductor.

[0002]

2. Description of the Related Art In general, a conventional connection device performs an electrical connection by inserting and removing a plug and a socket.

[0003] Regardless of whether such a connection device is used for connection to an external power supply or connection of an output signal line, a plug and a socket are exposed to the outside despite being a standard product. ing. Therefore, there is a problem that a short circuit is easily caused by carelessness, which causes a failure of the electric equipment, and a risk of electric shock when handling a high voltage.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and provides a connection device having a protection function capable of preventing a failure of an electric device due to an inadvertent short circuit. The purpose is to do. Another object of the present invention is to provide a connection device having a protection function for preventing a risk of electric shock due to exposure of a conductor.

[0005]

In order to achieve the above object, the present invention comprises a first connecting device and a second connecting device capable of inserting and removing the first connecting device. Is in a first state when the first connection device is not inserted into the second connection device, and the first connection device is electrically connected to the second connection device. The second connection device is in a second state when the first connection device is inserted into the second connection device, and the first connection device is in the second state. A connection device with a protective function, characterized in that the connection device is electrically connected to the second connection device.

[0006] Preferably, the second connection device returns from the second state to the first state when the first connection device is removed from the second connection device.

[0007] Preferably, the second connecting device has an opening for inserting the first connecting device, a stopper provided at a bottom of the opening, and is rotatably attached to the opening. A movable plate, and an elastic member attached to a rotating shaft of the movable plate, and when the first connection device is not inserted into the second connection device, the stopper is provided with the movable plate. To prevent the first connection device from being inadvertently inserted into the second connection device, and when the first connection device is inserted into the second connection device,
The lower edge of the first connection device presses the stopper to release the locking of the movable plate, and rotates the movable plate so that the first connection device is connected to the second connection device. When the first connection device is removed from the second connection device, the elastic member rotates the movable plate, and the movable plate is connected to the stopper. Locked.

[0008] Preferably, in the first state,
The stopper locks the movable plate to prevent rotation of the movable plate, and in the second state, the stopper releases the lock of the movable plate by pressing the first connection device. Then, the first connection device rotates the movable plate.

Preferably, the stopper includes a compression spring at a lower portion, and the stopper is urged upward by the compression spring when the first connection device is not inserted into the second connection device. The elastic member is a torsion spring, and when the first connection device is pulled out of the second connection device, the movable plate is turned by the torsional moment of the torsion spring. And is locked by the stopper.

Preferably, the first connection device is a plug, the second connection device is a socket, and the plug and the socket are used for connection to an external power supply or connection of an output signal line. Is done.

Further, preferably, the second connecting device has a guide groove for guiding the first connecting device in the insertion / removal direction.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing an embodiment of a connection device having a protection function according to the present invention. As shown in FIG. 1, the connecting device includes a plug 11 as a first connecting device, a socket 12 as a second connecting device, a movable plate 13, a torsion spring 14, two stoppers 15, two compression springs 16, Two guide grooves 17 and 2
It has two fixing rings 18.

In this embodiment, the socket 12 is mounted on the printed circuit board 9 and fixed to the panel 2 of the casing 20. The panel 2 has a hole 21 through which the plug 11 can mate with the socket 12.
The hole 21 has a shape that exactly matches the plug 11.
The plug 11 includes a conductive element 111 that can be electrically connected to the conductive element 19 of the socket 12.

The socket 12 is fixed to the rear surface of the panel 2 and a housing 20 and is fixed to the housing 20 and is electrically connected to the printed circuit board 9 to receive electric energy as electric power or electric signal and / or. It comprises a plurality of conductive elements 19 for transmitting and a safety device 30 for preventing the plurality of conductive elements 19 from being inadvertently connected.

The safety device 30 includes a movable plate 13 rotatably mounted on the housing 20, two stoppers 15 for locking the movable plate 13, and two compression units mounted between the housing 20 and the stopper 15. And a spring 16.

The stopper 15 has a compression spring 16 attached to the lower part thereof, and is fixed to the bottom of the opening of the socket 12 by a fixing ring 18. A groove 151 that engages with the lower edge 131 of the movable plate 13 is provided above the stopper 15. . Movable plate 1
3 is a socket 1 having two projections 132 as pivot axes.
It is rotatably attached to two holes 201 of the two openings, and the lower edge is locked by the stopper 15. The torsion spring 14 is attached between the protrusion 132 of the movable plate 13 and the hole 201. The torsion spring 14 moves the movable plate 13 so as to rotate to a position where the opening of the socket 12 is closed.
Is energizing. The guide groove 17 is provided with the protrusion 11 of the plug 11.
2, and guides the plug 11 in the insertion / removal direction.

Next, the operation of the connection device will be described.
FIG. 2 is a longitudinal sectional view showing the operation of the connection device shown in FIG. 1 in order. 2A shows a state in which the plug 11 is not in contact with the stopper 15, FIG. 2B shows a state in which the plug 11 is pressing the stopper 15, and FIG.
2 shows a state in which the movable plate 13 is rotating, and FIG. 2D shows a state in which the plug 11 and the socket 12 are electrically connected.

In the state shown in FIG. 2A, the stopper 15 is pushed upward by a compression spring 16. The movable plate 13 is connected to the socket 12 by the stopper 15.
Is locked at a position to close the opening.

In the state shown in FIG.
1 presses the inclined surface 152 of the stopper 15 and pushes the stopper 15 downward against the upward bias of the compression spring 16. Therefore, the locking of the movable plate 13 is released.

In the state shown in FIG.
1 rotates the movable plate 13 against the torsional moment of the torsion spring 14 and advances along the guide groove 17.

In the state shown in FIG.
1 rotates the movable plate 13 to a substantially horizontal position and electrically connects to the socket 12.

When the plug 11 in the state shown in FIG. 2D is removed from the socket 12, the operation is exactly the opposite of the above. As the plug 11 is removed, the movable plate 13 rotates toward the position where the opening of the socket 12 is closed by the torsion moment of the torsion spring 14. After the plug 11 is completely removed from the socket 12, the stopper 15 is pushed up by the compression spring 16 to lock the movable plate 13, and returns to the state shown in FIG.

[0023]

As described above, according to the present invention, it is possible to prevent a failure of an electric device due to an inadvertent short circuit or a danger of electric shock.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a connection device having a protection function according to the present invention.

FIG. 2 is a longitudinal sectional view sequentially illustrating the operation of the connection device illustrated in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Plug 12 Socket 13 Movable plate 14 Torsion spring 15 Stopper 16 Compression spring 17 Guide groove

Claims (8)

[Claims] 1. A casing having a socket for mounting on a printed circuit board, the casing having a panel having a hole through which a plug can be fitted to the socket, and a casing fixed to a back surface of the panel. A casing with a socket, comprising: a housing; and a plurality of conductive elements secured to the housing and electrically connected to the printed circuit board to receive and / or transmit electrical energy. 2. A first connection device, comprising: a second connection device capable of inserting and removing the first connection device, wherein the second connection device is provided with the first connection device. When the first connection device is not inserted, the first connection device is in the first state, preventing the first connection device from being electrically inadvertently connected to the second connection device. When the first connecting device is inserted into the second connecting device, the connecting device enters a second state, and the first connecting device is electrically connected to the second connecting device. Connection device with a protective function, characterized in that it can 3. The second connection device returns from the second state to the first state when the first connection device is removed from the second connection device. Item 3. A connection device provided with the protection function according to Item 2. 4. The second connection device, an opening for inserting the first connection device, a stopper provided at a bottom of the opening, and a pivotally attached to the opening. A movable plate, and an elastic member attached to a rotating shaft of the movable plate. When the first connection device is not inserted into the second connection device, the stopper moves the movable plate. Lock it,
Preventing the first connection device from being inadvertently inserted into the second connection device, wherein the first connection device is inserted when the first connection device is inserted into the second connection device; The lower edge presses the stopper to release the locking of the movable plate, and rotates the movable plate to electrically connect the first connection device to the second connection device. When the first connection device is removed from the second connection device, the elastic member rotates the movable plate, and the movable plate is locked by the stopper. A connection device having a protection function according to claim 2. 5. In the first state, the stopper locks the movable plate to prevent rotation of the movable plate, and in the second state, the stopper moves the first plate. The connection device with a protection function according to claim 4, wherein the locking of the movable plate is released by pressing the connection device, and the first connection device rotates the movable plate. 6. The stopper includes a compression spring at a lower portion, and when the first connection device is not inserted into the second connection device, the stopper is urged upward by the compression spring. The elastic member is a torsion spring, and when the first connection device is removed from the second connection device, the movable plate is rotated by a torsional moment of the torsion spring. The connection device having a protection function according to claim 4, wherein the connection device is locked by the stopper. 7. The first connection device is a plug, the second connection device is a socket, and the plug and the socket are used for connection to an external power supply or connection of an output signal line. The connection device having a protection function according to claim 2, wherein 8. The connection device with a protection function according to claim 2, wherein the second connection device includes a guide groove for guiding the first connection device in the insertion / removal direction.