CN217691963U - Electrical apparatus plug device that possesses short-circuit protection function - Google Patents

Abstract

The utility model belongs to the technical field of electrical plugs, and discloses an electrical plug device with a short-circuit protection function. There is a short-circuit protection device in series with the connection circuit of the plug cable; the short-circuit protection device is provided with two fuses, and the two fuses are respectively connected with the two plug blades; the outer side of the plug shell is embedded with a working indicator light, and the working indicator light is connected in series. In the connection circuit between the plug blade and the plug cable. The short-circuit protection device in the utility model can blow the fuse and cut off the circuit when the plug has a short-circuit fault. The structure is simple, and the short-circuit protection function can be realized. The L and N phases of the plug are provided with short-circuit protection devices. If there is a fault, the device can quickly cut off the circuit to ensure the safety of the circuit.

Description

An electrical plug device with short-circuit protection function

technical field

The utility model belongs to the technical field of electrical plugs, in particular to an electrical plug device with a short-circuit protection function.

Background technique

At present, there is a phenomenon in the city that the outdoor "flying wire" is used to supply power to electrical appliances by extending the length of the plug-in cable. Affected by environmental factors such as outdoor rainy and snowy weather and dust, short-circuit faults are prone to occur at the contact between the outdoor power supply strip and the plug. Due to the long distance between the "flying lead" plug-in strip and the main switch of the power supply, the circuit line resistance is large, and when a short circuit fault occurs, the main switch of the power supply may not "trip" to cut off the circuit in time, posing a safety hazard.

Patent No. 201210470349.2 discloses an anti-short circuit protection plug, which proposes to set a waterproof platform at the part where the plug is connected to the wire, but this solution can only prevent water from entering the plug along the power cord, causing the plug to Short circuit problem. It cannot solve the problem that a short circuit fault occurs during contact with the plug strip due to foreign matter attached to the plug blade.

Through the above analysis, the problems and defects in the prior art are:

(1) The distance between the plug-in strip and the main gate of the power supply is long. When a short-circuit fault occurs, the main gate of the power supply cannot cut off the circuit in time, posing a safety hazard.

(2) The existing anti-short-circuit protection plug cannot solve the problem of a short-circuit fault in the process of contacting the plug strip due to foreign matter attached to the plug blade.

Utility model content

Aiming at the problems existing in the prior art, the utility model provides an electrical plug device with a short-circuit protection function.

The utility model is achieved in this way, a kind of electrical plug device with short-circuit protection function is provided with:

plug housing;

The right end of the plug housing is provided with two plug blades, the left side of the plug housing is connected with two plug cables, the two plug blades are respectively connected with the two plug cables, and the plug blades are connected with the plug cables. There is a short-circuit protection device connected in series in the connecting circuit;

The short-circuit protection device is provided with two fuses, and the two fuses are respectively connected with two plug blades.

Further, the plug housing is provided with a cavity for accommodating a short-circuit protection device, and a fuse base is installed in the cavity, which is used to fix the fuse in the series circuit of the plug blade and the plug cable, so that the fuse installation and removal.

Further, a cover plate is provided on one side of the plug housing, and the cover plate is connected to the plug housing by screws, which is convenient for opening and replacing the fuse inside the housing.

Further, a working indicator light is embedded on the outer side of the plug housing, and the working indicator light is connected in series in the connection circuit between the plug blade and the plug cable.

Further, the fusing current of the fuse is set to be twice the rated current value of the plug.

In combination with all the above-mentioned technical solutions, the advantages and positive effects of the utility model are as follows:

The short-circuit protection device in the utility model can fuse the fuse to cut off the circuit when a short-circuit fault occurs in the plug. Failure, the device can quickly cut off the circuit to ensure circuit safety. In the utility model, the working indicator light can be extinguished when the plug short-circuit fault occurs through the working indicator light, which is convenient for the user to find the short-circuit fault of the plug in time.

The utility model sets the plug shell and the cover plate as two parts connected by screws, so that after a short-circuit fault occurs in the plug, the fuse in the short-circuit protection device can be replaced by removing the cover plate, and the short-circuit protection function of the plug can be restored.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required in the embodiments of the present application. Obviously, the accompanying drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a schematic structural diagram of an electrical plug device provided with a short-circuit protection function provided by an embodiment of the present invention.

Fig. 2 is a schematic structural view of the cavity provided by the embodiment of the present invention.

Fig. 3 is a schematic structural view of the cover plate provided by the embodiment of the present invention.

In the figure: 1. Plug blade; 2. Short circuit protection device; 3. Fuse base; 4. Working indicator light; 5. Plug cable; 6. Plug shell; 7. Cover plate; 8. Cavity.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Aiming at the problems existing in the prior art, the utility model provides an electrical plug device with a short-circuit protection function. The utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, the electrical plug device with short-circuit protection function provided by the embodiment of the utility model includes a plug blade 1, a fuse 2, a fuse base 3, a working indicator light 4, a plug cable 5, and a plug housing 6. Cover plate 7.

The short-circuit protection device is installed inside the plug housing 6, and is connected in series in the loop of the plug blade 1 and the plug cable 5, and the working indicator light 4 is connected in series in the loop of the plug power supply.

The short-circuit protection device is provided with two fuses 2, and the two fuses 2 are installed on the fuse base 3, and are respectively connected with two plug blades.

As a preference, the fusing current of the fuse in the short-circuit protection device 2 in the embodiment of the present invention is generally set to twice the rated current value of the plug. The cover plate 7 is detachable so as to replace the fuse in the short circuit protection device. The outer side of the cover plate 7 is provided with an opening matched with the working indicator light 4 .

When the utility model is in use, the plug insert 1 is connected with the connecting hole of the socket, and the working indicator light 4 is always on when the plug is normally connected to the power supply to supply power to the electric appliance. When a short-circuit fault occurs, the fuse 2 in the short-circuit protection device is blown, the circuit is cut off, and the working indicator light 4 is extinguished, so that the user can judge whether the fuse in the short-circuit protection device 2 is blown according to the working indicator light 4 .

The above is only a preferred specific implementation of the utility model, but the scope of protection of the utility model is not limited thereto, anyone familiar with the technical field within the technical scope disclosed in the utility model Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be covered within the protection scope of the present utility model.

Claims (5)

1. An electrical appliance plug device with a short-circuit protection function is provided with a plug shell (6), two plug inserting pieces (1) penetrate through the right end of the plug shell (6), the left side of the plug shell (6) is connected with two plug cables (5), and the two plug inserting pieces (1) are respectively connected with the two plug cables (5), and the electrical appliance plug device is characterized in that a short-circuit protection device is connected in series in a connecting loop of the plug inserting pieces (1) and the plug cables (5); the short-circuit protection device is provided with two fuses which are respectively connected with the two plug inserting pieces (1) in series.

2. The electrical apparatus plug device with short-circuit protection function according to claim 1, wherein the outer side of the plug housing (6) is embedded with a work indicator lamp (4), and the work indicator lamp (4) is connected in series in a connection loop of the plug blades (1) and the plug cable (5).

3. The electrical apparatus plug device with short-circuit protection function according to claim 1, wherein the plug housing (6) has a cavity (8) formed therein, the short-circuit protection device is disposed in the cavity (8), and a fuse base (3) for fixing a fuse is installed in the cavity (8).

4. The electrical apparatus plug device with short-circuit protection function according to claim 1, wherein a cover plate (7) is disposed on one side of the plug housing (6), and the plug housing (6) and the cover plate (7) are connected by screws.

5. The electrical plug device with short-circuit protection function according to claim 3, wherein the fuse blowing current is set to be 2 times of a rated current value of the plug.

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