KR200341344Y1 - Structure of auxiliary handle of circuit braker - Google Patents

Abstract

The present invention relates to the structure of the auxiliary handle of the circuit breaker, so that the assembly direction when assembling the auxiliary handle to the circuit breaker and the on and off operation direction of the circuit breaker using the auxiliary handle to act perpendicular to each other. By configuring, there is an effect that can prevent the departure of the auxiliary handle during operation.

The auxiliary handle structure of the circuit breaker according to the present invention for controlling the operation of the circuit breaker by the user's operation and has a handle knob 14 provided with a groove 14a of uneven shape on one side, the handle knob The groove portion 15a having one side opened to be inserted and assembled to the side surface of the groove 14 is formed, and the uneven protrusion 15b is formed on the inner surface of the groove portion 15a so as to be fitted into the groove 14a. It characterized in that it comprises a secondary handle (15).

Description

Auxiliary handle structure of circuit breaker {STRUCTURE OF AUXILIARY HANDLE OF CIRCUIT BRAKER}

The present invention relates to an auxiliary handle structure of a circuit breaker, and more particularly, to a secondary handle structure of a circuit breaker which prevents the auxiliary handle from being separated during a user operation in a large capacity circuit breaker having a large handle manipulation force.

In general, the circuit breaker switches the electric line to the open (OFF) or closed (ON) state by operating the handle, and protects the load device and the line by cutting off the circuit when an overload or short circuit occurs in the line. to be.

Among these circuit breakers, medium-capacity circuit breakers (normally 400AF or more) require excessive force when the user operates the circuit breaker, and therefore, auxiliary handles are used for convenience of operation.

Hereinafter, a circuit breaker according to the related art will be described with reference to the accompanying drawings.

1 is a perspective view of a main body of a circuit breaker according to the prior art.

As shown in FIG. 1, the circuit breaker includes an enclosure 1 accommodating various electrical components, a main cover 2 coupled to an upper portion of the enclosure 1, and an upper portion of the main cover 2. An auxiliary cover 3 coupled to the opening and closing portion, a handle knob 4 for operating the electronic wiring breaker, and an auxiliary handle 5 for assembling the handle knob 4 to operate a circuit breaker. It is configured to include.

At this time, the upper portion of the main cover (2) has a space formed on both sides to accommodate various accessories, for example, alarm switch, auxiliary switch, remote trip device, etc., so that the user When the accessory device is to be mounted, the auxiliary cover 3 is rotated and opened in one direction from the main cover 2, and then the accessory device is selectively coupled to the space part of the main cover 2 to be used.

Here, the auxiliary cover 3 can be opened and closed if necessary as one end is rotatably hinged on the main cover 2, and the other end of the auxiliary cover 3 is a fastening screw (not shown). By this structure, it is possible to mount it on the main cover 2 of the breaker at any time.

In addition, at the left and right sides of the main cover 2, wire outlets (not shown) are formed to draw out the wires (not shown) connected to the accessory to the outside of the breaker when the accessory is mounted. .

FIG. 2 is an assembly view of the auxiliary handle 5 shown in FIG. 1.

As shown in FIG. 2, the auxiliary handle 5 inserts the groove 5a of the auxiliary handle 5 in a straight direction into the handle knob 4 provided at the front of the circuit breaker and presses it with the user's pressing force. After the assembly is maintained, operate the circuit breaker ON or OFF.

3 is an operation state diagram of the handle knob 4 shown in FIG. 1.

The circuit breaker is divided into ON (a), OFF (c), and Trip (b) according to the closed state, and the user operates the circuit breaker as needed. (ON) (a), OFF (c) and Reset (d) lines are controlled.

4 is an explanatory diagram for explaining the problem of the structure of the auxiliary handle 5 of the circuit breaker according to the prior art.

The circuit breaker structurally increases the operating force for operating the circuit breaker as the circuit breaker having a large rated current increases. This operation force is different depending on the circuit breaker, but it requires about 25 ~ 30kgf, so it is difficult for the user to operate the circuit breaker without a separate auxiliary handle (5), and therefore the circuit breaker using the auxiliary handle (5) To operate.

In the conventional auxiliary handle 5, if the user does not restrain the auxiliary handle 5 after assembling the auxiliary handle 5 to the circuit breaker when the circuit breaker is in an OFF state, the auxiliary handle ( 5) falls to the ground by gravity. This acts as an important factor to infringe the safety of the user when switching the circuit breaker holding the electric line in the closed state (ON) (a of FIG. 3) to the open state (OFF) (c of FIG. 3). That is, when the circuit breaker is switched from ON (a) to OFF (c), the load action direction F and the auxiliary handle 5 coincide with the load action direction when the circuit breaker is separated from the circuit breaker. The phenomenon that the auxiliary handle 5 is separated is likely to occur. In this way, if the auxiliary handle 5 is detached during operation, the user may contact the circuit breaker by inertia and cause injury or may cause an accident due to incorrect operation. There was a problem that breakage of the circuit breaker enclosure (1) occurs.

In addition, in order to prevent the detachment of the auxiliary handle 5 during operation, the size of the handle knob 4 of the circuit breaker and the size of the square groove 5a of the auxiliary handle 5 assembled to the circuit breaker correspond to each other. When the auxiliary handle 5 is inserted into the handle knob 4 and fixed, the auxiliary handle 5 may be difficult to assemble and separate from the auxiliary handle 5, thereby reducing user convenience.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is an assembly direction when assembling the auxiliary handle to the circuit breaker and an ON and OFF operation direction of the circuit breaker using the auxiliary handle. It is to provide an auxiliary handle structure of a circuit breaker that can be configured to act perpendicular to each other to prevent the departure of the auxiliary handle during operation.

1 is a perspective view showing the structure of a circuit breaker and an auxiliary handle according to the prior art;

2 is an assembly view of the auxiliary handle shown in FIG.

3 is an operation state diagram of the handle knob shown in FIG.

4 is an explanatory diagram for explaining a problem of an auxiliary handle structure of a circuit breaker according to the related art.

5 is a perspective view showing the structure of the auxiliary handle of the circuit breaker according to the present invention

6 is an assembly view of the auxiliary handle shown in FIG.

7 is a perspective view showing another auxiliary handle structure of the circuit breaker according to the present invention

8 is a side cross-sectional view of the auxiliary handle shown in FIG. 7 assembled to the handle knob;

9 is a view showing the assembly (A) and the operation direction (B) of the auxiliary handle of the circuit breaker according to the present invention.

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

14 handle knob 14a uneven groove

15, 25: auxiliary handle 15a, 25a: groove

15b, 25b: uneven protrusions 15c, 25c: locking jaw

Auxiliary handle structure of the circuit breaker according to the present invention for achieving the above object,

It is provided with a handle knob 14 which controls the operation of the circuit breaker by a user's operation and is provided with grooves 14a having irregularities on one side thereof.

An uneven protrusion 15b is formed such that a groove 15a having one side is opened to be assembled by being fitted to the side of the handle knob 14 and fitted into the uneven groove 14a on the inner side of the groove 15a. It is characterized in that it comprises a secondary handle (15) formed.

The locking jaw 15c is formed at the tip of the protrusion 15b of the uneven shape of the auxiliary handle 15.

Another auxiliary handle structure of the circuit breaker according to the present invention for achieving the above object,

A handle knob 14 which controls the operation of the circuit breaker by a user's operation and is provided with grooves 14a having irregularities on one side and the other side,

A groove 15a having one side open to be assembled by being fitted to the side surface of the handle knob 14, and projections having a concave-convex shape to be fitted into the grooves 14a of the concave-convex shape on both inner surfaces of the groove 15a. 15b) is characterized in that it comprises an auxiliary handle (15) formed respectively.

It is characterized in that the locking step (15c) is formed at the tip of the protrusion (15b) of the uneven shape of the auxiliary handle (15), respectively.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

5 is a perspective view showing the structure of the auxiliary handle 15 of the circuit breaker according to the present invention, Figure 6 is an assembly view of the auxiliary handle 15 shown in FIG.

As shown in FIGS. 5 and 6, the auxiliary handle 15 of the circuit breaker controls the operation of the circuit breaker by a user's operation and has a handle knob having a groove 14a having an uneven shape at one side thereof. 14, a groove portion 15a having one side opened to be assembled by being fitted to the side of the handle knob 14, and fitted into the groove 14a of the concave-convex shape on the inner surface of the groove portion 15a. Consists of the auxiliary handle 15 is formed with a projection (15b) of the concave-convex shape. Then, the locking jaw 15c is formed at the tip of the protrusion 15b of the uneven shape of the auxiliary handle 15.

The method of assembling the auxiliary handle 15 to the handle knob 14 is assembled by inserting an opening of one side of the auxiliary handle 15 into the side of the handle knob 14. At this time, the protrusion 15b of the uneven shape of the auxiliary handle 15 is fitted into the groove 14a of the handle knob 14 to be coupled.

After assembling the auxiliary handle 15 to the handle knob 14, the auxiliary handle 15 may be assembled to the circuit breaker even if the user does not restrain the auxiliary handle 15. Even if the breaker is operated from the ON state to the OFF state, the auxiliary handle 15 does not detach during operation.

In addition, the present invention has a locking jaw (15c) shape at the tip of the protrusion (15b) of the concave-convex shape of the auxiliary handle 15 to prevent the separation of the auxiliary handle (15). To this end, the groove 14a of the handle knob 14 has a portion corresponding to the engaging jaw 15c of the auxiliary handle 15 deeper than the other portion by the height of the engaging jaw 15c.

Such a structure can prevent the loss of the auxiliary handle 15 and the user's convenience of operation when the auxiliary handle 15 is maintained in the circuit breaker and used for a long time or when frequent operation of the circuit breaker is required.

7 is a perspective view showing another auxiliary handle structure of the circuit breaker according to the present invention, Figure 8 is a side cross-sectional view of the auxiliary handle shown in Figure 7 assembled to the handle knob.

As shown in FIGS. 7 and 8, the auxiliary handle 25 of the circuit breaker controls the operation of the circuit breaker by a user's operation and has a handle having grooves 24a having irregularities on one side and the other side. A groove 24a having a knob 24 and having a groove portion 25a open at one side to be assembled by inserting into the side surface of the handle knob 24, and having the grooves 24a having the uneven shape formed on both inner surfaces of the groove portion 25a. It is configured to include an auxiliary handle 25, each of which is formed projections 25b of concave-convex shape so as to fit in. Then, the locking jaw 25c is formed at the tip of the protrusion 25b of the uneven shape of the auxiliary handle 25, respectively.

The method of assembling the auxiliary handle 25 to the handle knob 24 is assembled by inserting an opening of one side of the auxiliary handle 25 into the side of the handle knob 24. At this time, the protrusion 25b of the uneven shape of the auxiliary handle 25 is fitted into the groove 24a of the handle knob 24 is coupled.

After assembling the auxiliary handle 25 to the handle knob 24, the auxiliary handle 25 may be assembled to the circuit breaker even if the user does not restrain the auxiliary handle 25. Even if the breaker is operated from the ON state to the OFF state, the auxiliary handle 25 does not detach during operation.

In addition, the present invention has a locking jaw 25c shape at the tip of the uneven protrusion 25b of the auxiliary handle 25 to prevent the auxiliary handle 25 from being separated. To this end, the groove 24a of the handle knob 24 is formed deeper by the height of the locking jaw 25c than the other portion of the portion corresponding to the locking jaw 25c of the auxiliary handle 25.

This structure keeps the auxiliary handle 25 in the circuit breaker in an assembled state and uses it for a long time, or prevents the loss of the auxiliary handle 25 and the user's convenience of operation when frequent operation of the circuit breaker is required.

9 is a view showing the assembly (A) and the operation direction (B) of the auxiliary handle of the circuit breaker according to the present invention.

As shown in FIG. 9, the assembling and detaching direction A of the auxiliary handle 15 is assembled and separated to the side of the handle knob 14, and the operating direction B of the auxiliary handle 15 is assembled. As described with reference to FIG. 3, by operating the auxiliary handle 15 up and down, ON (a), trip (b), OFF (c), and Reset ( d) to control the track;

Preferred embodiments of the present invention as described above are disclosed for the purpose of illustration, those skilled in the art will be possible to various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and modifications are the following utility model registration claims Should be seen as belonging to.

As described above, according to the auxiliary handle structure of the circuit breaker according to the present invention, the handle knobs 14 and 24 of the circuit breaker are provided with uneven grooves 14a and 24a and are assembled accordingly. One side of one side of the auxiliary handles 15 and 25 was opened, and a convex protrusion 15b, 25b, 25c was provided inside. Then, the assembling direction when assembling the auxiliary handles 15 and 25 to the circuit breaker and the ON and OFF operation directions of the circuit breaker using the auxiliary handles 15 and 25 are perpendicular to each other. By doing so, it is possible to prevent separation of the auxiliary handles 15 and 25 from the handle knobs 14 and 24 during operation. In addition, there is an effect that can increase the user's safety and ease of use.

Claims (4)

In the auxiliary handle structure of the circuit breaker, It is provided with a handle knob 14 which controls the operation of the circuit breaker by a user's operation and is provided with grooves 14a having irregularities on one side thereof. An uneven protrusion 15b is formed such that a groove 15a having one side is opened to be assembled by being fitted to the side of the handle knob 14 and fitted into the uneven groove 14a on the inner side of the groove 15a. Auxiliary handle structure of a circuit breaker, characterized in that comprises a secondary handle (15) formed. The method of claim 1, The auxiliary handle structure of the circuit breaker, characterized in that the locking step (15c) is formed at the tip of the uneven protrusion (15b) of the auxiliary handle (15). In the auxiliary handle structure of the circuit breaker, A handle knob 14 which controls the operation of the circuit breaker by a user's operation and is provided with grooves 14a having irregularities on one side and the other side, A groove 15a having one side open to be assembled by being fitted to the side surface of the handle knob 14, and projections having a concave-convex shape to be fitted into the grooves 14a of the concave-convex shape on both inner surfaces of the groove 15a. The auxiliary handle structure of the circuit breaker, characterized in that it comprises a secondary handle (15) is formed, respectively 15b). The method of claim 3, wherein The auxiliary handle structure of the circuit breaker, characterized in that the locking step (15c) is formed at the tip of the protrusion (15b) of the uneven shape of the auxiliary handle (15), respectively.