KR200312338Y1 - Power plug including fuse - Google Patents

Abstract

The present invention relates to a power supply plug with a built-in fuse, a plurality of plug terminals are arranged at regular intervals inside the case and one end protrudes out of the case and coupled to the outlet, and the plurality of plug terminals are fixed inside the case A plug terminal seating portion having an insertion groove into which a fuse can be inserted between the plurality of plug terminals, the wire being formed at both ends of the fuse inserted into the insertion groove and connected to an electric device, and among the plurality of plug terminals And a fuse fixing portion for allowing a portion of the plug terminals to be connected through the fuse, and a fuse fixing portion for holding the fuse so that the fuse can be fixed in the insertion groove. Plug terminal through electrical appliance and fuse In this case, when a short circuit occurs in the power plug, the fuse may be disconnected to prevent an electric shock and fire of the user, and when the fuse is disconnected, the fuse may be replaced by the power plug, thereby improving user convenience. Since damage to the electric device can be prevented without installing a separate fuse inside the electric device, the cost required for this can be reduced.

Description

Power plug including fuse}

The present invention relates to a power plug with a built-in fuse, and in particular, a fuse is embedded in a power plug connected through an electric device and an electric wire so that the fuse is short-circuited when a short circuit occurs in the power plug detachable from the outlet when the electric device is used. The present invention relates to a fuse-type power plug capable of preventing damage to the home appliance and simultaneously preventing a risk of electric shock and fire of a user.

In general, most electric devices such as home appliances are provided with a power plug, and the electric device operates by receiving power according to the rated voltage of the electric device by the power plug.

When a current flows through the power plug, a closed circuit is formed between the power plug and the internal parts of the electric device to operate a function of each part.

1 is a view showing a power plug according to the related art, an electric wire 1 connected to an electric device (not shown), and the electric wire 1 connected to an electrical outlet (not shown) and connected to an outlet (not shown). Plug terminals (2, 4) and power to be applied to the electrical device through the wire (1), and the portion where the plug terminals (2, 4) and the wire (1) is connected to be protected from the outside It is configured to include a case (6).

In the power plug according to the related art as described above, when the plug terminals 4a and 4b are connected to an outlet, a current due to a voltage applied through the plug terminals 4a and 4b is transmitted through the electric wire 2. This causes the electric device to operate.

Here, the power plug is frequently detached from the outlet when the electric device is used, which causes a short circuit in the wire 1 connected to the plug terminals 2 and 4 as the power plug is detached from the outlet. That is, the insulation surrounding the wire 1 is peeled off to insulate the wire 1, and the wire 1 connected to the plug terminals 2 and 4 is directly shorted.

Therefore, when a short circuit occurs in the wire 1 as described above, there is a problem that an electric shock accident and a fire of the user may occur as well as the electric device breakage.

The present invention has been made to solve the above problems of the prior art, the purpose of which is to install a fuse inside the power plug to be applied to the power supply to the electrical equipment when the short circuit occurs in the power plug short circuit It is possible to prevent damage to the electric device, electric shock and fire of the user in advance, and to provide a fuse-type power plug which can improve the user's convenience by allowing the fuse to be replaced quickly.

1 is a perspective view showing a power plug according to the prior art,

Figure 2 is a perspective view showing the appearance of the fuse-type power plug according to the present invention,

3 is a cross-sectional view showing a configuration of a fuse-embedded power plug according to the present invention;

4 is an exploded perspective view illustrating a configuration of a fuse-type power plug according to the present invention.

<Explanation of symbols on main parts of the drawings>

10: case 21, 22: plug terminal

21a: coupling groove 30: fuse

40: plug terminal seat 41: insertion groove

50: fuse connection part 51: first connection terminal

52: second connector 52a: first hole

52b: second hole 52c: connecting portion

60: fuse fixing portion 61: fuse fixing cap

62: spring

The fuse-embedded power plug according to the present invention for solving the above problems is disposed at regular intervals inside the case, and a plurality of plug terminals, one end of which protrudes out of the case and is coupled to an outlet, and fixed inside the case. A plug terminal seating portion having a plurality of plug terminals to be seated at the same time, and a plug terminal seat having an insertion groove into which a fuse can be inserted between the plurality of plug terminals, and wires formed at both ends of the fuse inserted into the insertion groove and connected to an electric device; And a fuse connector for connecting some of the plug terminals of the plurality of plug terminals through the fuse, and a fuse fixing part for holding the fuse so that the fuse can be fixed in the insertion groove.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. For reference, the embodiments disclosed herein are only presented by selecting the most preferred embodiment from among the various possible examples to help those skilled in the art to understand, the technical spirit of the present invention is necessarily limited or limited only by this embodiment It is not to be understood that various changes and modifications can be made without departing from the spirit of the present invention, as well as other equivalent embodiments.

As shown in FIGS. 2 to 4, the fuse-embedded power plug according to the present invention is disposed at regular intervals inside the case 10 and has a pair of plug terminals 21 having one end protruding out of the case 10. , 22 and the plug terminal seating portion 40 in which the plug terminals 21 and 22 are seated, and an insertion groove 41 in which the fuse 30 is inserted between the plug terminals 21 and 22 is formed. A fuse connection part connected to both ends of the fuse 30 inserted into the insertion groove 41 to electrically connect the plug terminal 22 of any one of the pair of plug terminals 21 and 22 to an electric wire; 50 and a fuse fixing part 60 coupled to an inlet side of the insertion groove 41 to allow the fuse 30 to be fixed in the insertion groove 41 so that the fuse 30 is held. It is configured to include.

Here, the pair of plug terminals 21 and 22 are connected through the wire 10a and the fuse 30 by the plug terminal 21 and the fuse connecting portion 50 directly connected to the wire 10a, respectively. The plug terminal 21, which is composed of a plug terminal 22 and directly connected to the wire 10a, has a coupling groove 21a formed at one end thereof so as to be coupled to the wire 10a.

In particular, since the plug terminal 22 of any one of the pair of plug terminals 21 and 22 is connected to a wire through the fuse 30, the pair of plug terminals 21 and 22 are connected to an outlet. In this case, the application of the high current due to the overvoltage to the electric device not only prevents the electric device from being damaged as the fuse 30 is disconnected, but also when the electric wire 10a is shorted. Is disconnected to prevent the user from electric shock accidents and fire.

On the other hand, the fuse connecting portion 50 has one end disposed on the bottom surface of the insertion groove 41 and the other end penetrates the bottom surface of the insertion groove 41 to be disposed below the plug terminal seating portion 40. A second connection terminal disposed at a connection terminal 51 and an inlet side of the insertion groove 41 and connected to the fuse 30 and to any one of the pair of plug terminals 21 and 22 ( 52).

In this case, the second connection terminal 52 may include a first hole 52a disposed at an inner circumferential surface of the inlet side of the insertion groove 41, and a plug terminal 22 connected to a wire through the fuse connection unit 50. The connection part 52c connected between the 1st hole 52a and the 2nd hole 52b so that the 2nd hole 52b inserted and the 1st hole 52a and the 2nd hole 52b may be electrically connected. ), And a thread is formed on the inner circumferential surface of the first hole 52a.

In addition, a fuse fixing part 60 for coupling the fuse 30 to the inlet side of the insertion groove 41 is coupled, and the fuse fixing part 60 may be screwed to the first hole 52a. When the thread is formed on the outer circumferential surface and the hollow fixing hole 61 and the inside of the fuse fixing cap 61 is located inside the fuse fixing cap 61 and the fuse fixing cap 61 is screwed with the first hole 52a. It is composed of a spring 62 to allow the fuse 30 is burnt.

In other words, when the fuse 30 is inserted into the insertion groove 40 and the fuse fixing cap 61 is screwed with the first hole 52a, a spring disposed inside the fuse fixing cap 61 is provided. The fuse 30 is held by the 62 so as to fix the fuse 30 so that the fuse 30 can be prevented from being broken in the insertion groove 41.

Looking at the operation of the fuse-embedded power plug according to the present invention configured as described above are as follows.

In the fuse-type power plug according to the present invention, one of the pair of plug terminals 21 and 22 connected to the outlet is directly connected via an electric device and an electric wire, and the other plug The terminal 22 is connected with the electric wire through the fuse 30.

Here, the fuse 30 is inserted into the insertion groove 41 formed in the plug terminal seating portion 40 on which the pair of plug terminals 21 and 22 are seated, and before the fuse 30 is inserted. The first connection terminal 51 is disposed to extend downward through the bottom surface of the insertion groove 41 and the bottom surface of the plug terminal seating portion 40.

In addition, a plug terminal 22 connected to the fuse 30 and a second connection terminal 52 for allowing the fuse 30 to be electrically connected to the inlet side of the insertion groove 41 are disposed.

Therefore, when the fuse 30 is inserted into the insertion groove 41, the first connection terminal 51 is connected to the wire and the fuse 30, the second connection terminal 52 is the fuse The wire 30 and the plug terminal 22 are electrically connected between the 30 and the plug terminal 22.

Meanwhile, when the fuse fixing cap 61 and the first hole 52a are screwed into each other after the fuse 30 is inserted into the insertion groove 41, a spring disposed inside the fuse fixing cap 61 is formed. The fuse 30 is touched by 62 to fix the fuse 30 in the insertion groove 41.

In the fuse-type power plug according to the present invention configured as described above, a part of a plurality of plug terminals connected to an outlet may be connected to a plug terminal through an electric device and a fuse, so that a short circuit occurs in a wire connected to the power plug. The fuse can be disconnected to prevent a user's electric shock and fire, and the fuse can be replaced after the fuse fixing cap is removed from the power plug when the fuse is replaced. The convenience of the user is improved.

In addition, since the fuse is embedded in the power plug, it is possible to prevent damage to the electric device without installing a separate fuse inside the electric device, thereby reducing the cost required.

Claims (5)

A plurality of plug terminals disposed at regular intervals inside the case and having one end protruding outside the case to be coupled to an outlet; A plug terminal seating part fixed in the case to allow the plurality of plug terminals to be seated and at the same time an insertion groove for inserting a fuse between the plurality of plug terminals; A fuse connection part formed at both ends of the fuse inserted into the insertion groove to connect a wire terminal connected to an electric device and some plug terminals of the plurality of plug terminals to be connected through the fuse; And a fuse fixing part for holding the fuse so that the fuse can be fixed in the insertion groove. The method of claim 1, The plurality of plug terminals are plug terminals directly connected to the wires, A fuse-type power plug, characterized in that consisting of a plug terminal connected to the wire through the fuse connection. The method of claim 2, The first connection terminal having one end disposed at a bottom surface of the insertion groove and the other end penetrating the bottom surface of the insertion groove and disposed outside the plug terminal seating portion; And a second connection terminal disposed at an inlet side of the insertion groove and configured to connect some of the plug terminals of the plurality of plug terminals to the fuse. The method of claim 3, wherein The second connecting terminal is inserted into the insertion groove at the inlet side and the first hole is formed on the inner peripheral surface threaded, A second hole into which a plug terminal connected to the fuse is inserted; And a hole connection part formed on an outer side surface of the insertion groove so that the first hole and the second hole can be electrically connected to each other. The method of claim 4, wherein The fuse fixing portion is a fuse fixing cap threaded on the outer peripheral surface to be screwed with the first hole; And a spring disposed in the fuse fixing cap and configured to have a spring to hold the fuse when the fuse fixing cap is screwed with the first hole.