KR100913550B1 - Plug with a built-in fuse - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug for a built-in fuse, which is applied to an electric product such as a steam / vacuum cleaner, a steam iron, a food dryer, a refrigerator, and the like. It is about a plug.

Description

Plug with a built-in fuse

1 is an exploded perspective view of a fuse-embedded plug according to a preferred embodiment of the present invention as viewed from the front;

2 is a perspective view of the combination of FIG.

Figure 3 is an exploded perspective view of the fuse-embedded plug of Figure 1 seen from the rear.

4 is a perspective view of the combination of FIG.

5 and 6 are exploded and combined perspective views showing the main part of the present invention.

<Explanation of symbols for the main parts of the drawings>

DESCRIPTION OF SYMBOLS 1 Plug for built-in fuse 10 Molding plug body

15: Fuse built-in groove 20: Fuse

21: Fuse front terminal 23: Fuse rear terminal

30: spring 40: first fuse terminal

41: First fuse front connection piece 43: First connection pin connection piece

45: first connection connecting piece 46: line contact projection piece

50: 2nd fuse terminal 51: 2nd contact connection piece

53: second wire connection piece 60: stopper

70: fuse socket 71: incision groove

73: insertion hole 80: plug terminal

81,83: connection pin 85: fuse opening

86,87: fitting hole 90: earth terminal

96,97: fitting

Patent Document 1: Korean Utility Model Registration No. 20-0169769

Patent Document 2: Korean Utility Model Registration No. 20-0385065

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug for a built-in fuse, which is applied to an electric product such as a steam / vacuum cleaner, a steam iron, a food dryer, a refrigerator, and the like. It is about a plug.

As a plug for embedding a conventional fuse of this type, for example, those known in Patent Document 1 and Patent Document 2 are proposed.

In the plug of patent document 1, the fuse is attached to the fuse case of the upper part or the side part of a plug head.

Therefore, the fuse is disposed close to the portion to be grabbed by the user when the user unplugs, the plug body is hot, and the cover of the fuse can be opened during use, so handling is necessary.

On the other hand, in the plug of patent document 2, although the fuse is built in the front surface of a plug body, it is arrange | positioned in the direction perpendicular | vertical with respect to a plug terminal.

Therefore, there is a concern that the size (height when viewed from the front side) of the plug body increases with the length of the fuse. Then, there is a problem that the earth terminal disposed around the plug body does not match with a normal outlet.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problem, and an object thereof is to provide a plug for a built-in fuse, which is easy to handle in use and can be mounted on a conventional plug body regardless of the length of the fuse.

A fuse-embedded plug for achieving the above object includes a molded molded plug body electrically connecting a connection pin of a plug terminal to an electric wire; A fuse internal groove formed in the plug body in a direction parallel to the connection pin; A fuse embedded in the fuse internal groove; A first fuse terminal connecting the connection pin and the front terminal of the fuse; A second fuse terminal connecting the rear terminal of the fuse and the electric wire; A fuse exit hole formed in the plug terminal; Including a stopper fastened to the fuse outlet,
The fuse is embedded in a fuse socket inserted into the fuse internal groove, the first fuse terminal is coupled to the front of the fuse socket, the second fuse terminal is coupled to the rear of the fuse socket, and the first fuse. The terminal includes a first fuse front connecting piece for wrapping and connecting an outer circumferential surface of the fuse front terminal, a first connecting pin connecting piece for connecting with any one of the connecting pins, the first fuse front connecting piece and the first plug terminal. A first connection connecting piece for connecting a connecting piece, and the second fuse terminal comprises a second contact connecting piece in contact with an end surface of the fuse rear terminal, and a second wire connecting piece connected to the electric wire. The fuse socket is characterized in that the front is formed with a cutting groove for coupling the first connection connecting piece is fixed, the insertion hole for inserting the second contact connecting piece is formed in the rear.

According to this configuration, since the fuse is built in a direction parallel to the plug terminal, it is easy to handle in use and can be attached to a normal plug body regardless of the length of the fuse.

In the above configuration, it is preferable that the plug body has a fitting hole into which an earth terminal is fitted, and a spring is further provided between the stopper and the fuse.

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Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a fuse cleaner plug for steam cleaner according to a preferred embodiment of the present invention viewed from the front, FIG. 2 is a perspective view of the fuse of FIG. 1, and FIG. 4 is an exploded perspective view from the rear, FIG. 4 is a combined perspective view of FIG.

1 to 4, the fuse-embedded plug 1 according to the present embodiment includes a molded plug body 10 in which the plug terminals 90 are electrically connected to each other, and the plug body 10. The fuse 20 built in the inside and the stopper 60 which covers this fuse 20 are comprised.

The front surface of the plug body 10 is formed with a fuse built-in groove 15 in which the fuse 20 is built.

The fuse built-in groove 15 is formed to have a length in a direction parallel to the connecting pins 81 and 83 of the plug terminal 80.

Therefore, since the plug 1 is in a position that is not visible from the outside when the plug 1 is connected to the outlet, there is no fear of disconnection of the fuse 20 without touching the stopper 60 by the user's handling. It can be used safely by users away from holding parts.

In addition, when the plug (1) is connected to the outlet, the fuse 20 is operated at the outlet portion, it is safer because the electricity does not flow.

In addition, even when the earth terminal 90 is provided, the height of the front surface of the plug body 10 is constant regardless of the length of the fuse 20, so that it can be connected to an ordinary outlet.

The front of the fuse 20 is connected to the first fuse terminal 40, and the rear of the fuse 20 is connected to the second fuse terminal 50.

As shown in FIGS. 5 and 6, the first fuse terminal 40 includes the first fuse front connection piece 41 and the connection pin 83 connected to the outer circumferential surface 22 of the fuse front terminal 21. The first connecting pin connecting piece 43 to be connected to the outer circumferential surface, and the first connecting piece 45 to connect the first fuse front connecting piece 41 and the first connecting pin connecting piece 43 to each other.

The first fuse front connecting piece 41 and the first connecting pin connecting piece 43 are constituted by a C-type ring type connecting piece, which is easy to fit with each other even if the diameter is different. Keep it.

In addition, the first fuse front connecting piece 41 is preferably formed with a line contacting projection piece 46 protruding inward.

In addition, it is preferable that the line contacting projection pieces 46 are located at two positions at both sides of the 180 degree position or at three positions at the 120 degree position.

The configuration of the first fuse terminal 40 may be bent and integrally formed.

The line contacting projection piece 46 is a ridge structure formed by cutting to both sides and pushing it inward, so that the contact area with the first fuse front connecting piece 41 can be minimized to make it easier to remove the fuse 20.

The second fuse terminal 50 is composed of a second contact connecting piece 51 connected to the end face 24 of the fuse rear terminal 23 and a second wire connecting piece 53 connected to an electric wire.

The first fuse terminal 40 and the second fuse terminal 50 is preferably fixed to the fuse socket 70 is inserted into the fuse built-in groove 15.

That is, the front of the fuse socket 70 is formed with a cutting groove 71 formed in the longitudinal direction, the insertion hole 73 formed in the circumferential direction is formed at the rear of the fuse socket 70.

By this configuration, the first connection connecting piece 45 of the first fuse terminal 40 is inserted and fixed in the cut groove 71, and the first contact connecting piece 51 of the second fuse terminal 50 is inserted. The second fuse terminal 50 is inserted into the ball 73.

Therefore, the terminal connection structure with the fuse can be implemented in one module, which is very convenient to assemble.

On the other hand, it is preferable that the spring 30 is installed between the stopper 60 and the fuse front terminal 21.

The spring 30 applies the fuse 20 to the rear side with respect to the stopper 60 fastened and fixed to the fuse outlet 85 of the plug terminal 80, so that the end face 24 of the second fuse terminal 23 is provided. ) Is in close contact with the second contact connecting piece (51).

In this way, the fuse 20 can be easily taken in and out by fastening and disassembling the stopper 60.

The earth terminal 90 is fitted to the plug terminal 80 and is coupled.

In the earth terminal 90, fitting protrusions 96 and 97 are formed, and the plug terminal 80 is provided with fitting holes or fitting grooves 86 and 87 corresponding to the fitting protrusions 96 and 97. have.

Therefore, the earth terminal 90 can be easily assembled to the plug terminal 80.

As described above, various preferred embodiments of the present invention have been described with reference to the drawings, but the present invention may be variously modified or modified without departing from the spirit and scope of the present invention as set forth in the claims below. It will be apparent to those skilled in the art.

As is apparent from the above description, the plug for fuses according to the present invention has the following effects.

Since the fuse is installed in the longitudinal direction parallel to the connecting pin of the plug terminal, the plug is located in an invisible position when the plug is connected to the outlet, so that the fuse cover may not be touched by the user's handling and the fuse may be broken. At all, even if heat is generated, the user can be used with peace of mind away from the holding part. In addition, when the plug is connected, the fuse is operated at the outlet, so electricity is not applied, which is safer. In addition, even when the earth terminal is provided, it can be used by connecting to an ordinary outlet since it is constant at the front height of the plug body regardless of the length of the fuse.

In addition, by fastening the stopper to the fuse outlet of the plug terminal, the fuse can be easily taken in and out without using a separate cover member for covering the fuse.

In addition, since the earth terminal is fitted to the plug body, the assembly is convenient.

In addition, since the first fuse terminal is coupled to the front of the fuse socket and the second fuse terminal is coupled to the rear of the fuse socket, the terminal connection structure with the fuse can be realized as a single module, which is very convenient to assemble. .

Further, by providing a spring between the stopper and the fuse front terminal, the connection between the fuse and the second fuse terminal can be securely performed.

Claims (3)

A molded molded body in which a connection pin of a plug terminal is electrically connected to an electric wire; A fuse internal groove formed in the plug body in a direction parallel to the connection pin; A fuse embedded in the fuse internal groove; A first fuse terminal connecting the connection pin and the front terminal of the fuse; A second fuse terminal connecting the rear terminal of the fuse and the electric wire; A fuse exit hole formed in the plug terminal; Including a stopper fastened to the fuse outlet, The fuse is embedded in the fuse socket is inserted into the fuse built-in groove, The first fuse terminal is coupled to the front of the fuse socket, the second fuse terminal is coupled to the rear of the fuse socket, The first fuse terminal may include: a first fuse front connecting piece for wrapping and connecting an outer circumferential surface of the fuse front terminal; a first connecting pin connecting piece for connecting with any one of the connecting pins; and the first fuse front connecting piece and the It consists of a first connection connecting piece for connecting the first plug terminal connecting piece, The second fuse terminal is composed of a second contact connecting piece in contact with the end surface of the fuse rear terminal, and a second wire connecting piece connected to the wire, The fuse socket is a plug for a fuse, characterized in that the front is formed with a cutting groove for coupling the first connection connecting piece is fixed, the insertion hole into which the second contact connecting piece is inserted into the rear. The method of claim 1, The plug body is formed with a fitting hole to which the earth terminal is fitted, And a fuse is further installed between the stopper and the fuse. delete

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