KR0136575Y1 - Circuit breaker with multiple coupling structure - Google Patents

Abstract

The present invention relates to a circuit breaker having a multiple coupling structure that facilitates the coupling of the circuit breaker in multiple connections and improves the fixing force thereof.

Conventionally, a multiple circuit breaker has a simple rivet coupling structure, so slippage and twisting occur easily between main bodies, and thus the inherent performance of the product, namely, switching by a short-circuit and an overcurrent, affects a circuit protection function.

Therefore, the present invention has a structure in which bosses having depressions on both sides of the main body are in communication with each other, and when multiple couplings are made to the main body, the ring is inserted into the space formed as the depression and fixed with rivets. It is also possible to form a recess in the side to insert the inclusions to be laminated.

In still another embodiment, it is possible to stack two or more circuit breakers in a block-fitting manner by providing a recess on one side of the main body and a protrusion on the other side.

Description

Circuit breaker with multiple coupling structure

1 is a front view showing the internal structure of the circuit breaker.

Figure 2 (a) (b) is a perspective view of the separation and coupling of a conventional circuit breaker.

3 is a schematic cross-sectional view showing a conventional bonding example.

Figure 4 (a) (b) is a schematic cross-sectional view showing an exploded perspective view and a coupling example of the present invention.

Figure 5 (a) (b) (c) is a cross-sectional view of another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1,1A, 1B, 1C: Breaker body 11,11A: Recess

11B, 11C: protrusion 2: ring

2A: inclusions

The present invention relates to a circuit breaker having a multiple coupling structure that facilitates the coupling of the circuit breaker in multiple connections and improves the fixing force thereof.

Circuit breakers are installed in residential and industrial operation panels to protect wires, circuits or loads in the event of overload or abnormal currents. Used as an assembly in a combined configuration.

First, the structure of the basic circuit breaker will be briefly described. As shown in FIG. 1, the operation handle 20 protruded and hinged to the upper portion of the main body 10, the latch 30 for operating the operation handle 20, and The fixed contact point 40 and the movable contact point 50 at the lower part and the tripping mechanism part 60 and the terminal part 70 are provided on one side thereof, and when combining two or more of them, the trip bar (as shown in FIG. 2) 80) and the auxiliary handle 90 is inserted into the designation groove in the main body 10, and then tightened by rivets 100 to form an integrated mechanism.

In such a conventional configuration, the coupling between the main bodies 10 may be damaged because the main body 10 is a mold by simply using the rivet 100 or a screw without the structure of inducing any coupling guide as shown in FIG. In consideration of this, there is a limit to the coupling force of the rivet 100, and also the designation groove of the main body 10 into which the rivet 100 is inserted has a tolerance in which the rivet 100 can be inserted freely, thereby coupling Slip and twist between the main bodies 10 are likely to occur.

Because of this, even in the small movement between the main body 10, the trip bar 80 and the auxiliary handle 90 do not transmit power in the structure of power transmission between each other, only one side is opened or closed, or the effect of shaking or other external force when blocking As a result, the trip bar 80 may be out of position and cause an inoperable state, thereby affecting the product's unique performance, that is, a circuit protection function such as opening and closing and short circuit interruption.

Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a stable mechanism when two or more circuit breakers are combined to solve the adverse effect on the inherent performance of the circuit breaker.

In order to achieve the above object, the present invention has a structure in which bosses having depressions on both sides of the main body are in communication with each other, and when the multiple couplings are made to the main body, the ring is inserted into the space formed as the depression and fixed with rivets. It is also possible to form a recessed portion on the other side except for the boss portion to insert the inclusions to be laminated.

In another embodiment, two or more circuit breakers may be stacked and connected in a block-fitting manner by having a depression on one side of the main body and a protrusion on the other side.

This will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 4, the auxiliary handle 90 is connected to the operation handle 20 and each trip mechanism part is connected by the trip bar 80 so that at least two or more circuit breakers are connected in multiple layers to integrate one mechanism. In the circuit breaker, a ring (2) through which a boss having depressions (11) communicates with both sides of the circuit breaker main body (1) so that the rivet (R) for fixing is passed through the space (12) formed in the multilayer stacking. It is composed by putting.

Meanwhile, as another embodiment of the present invention, as shown in (c) of FIG. 5, the recessed portion 11A is formed between the portions where the rivet is penetrated and fixed, thereby forming a space portion formed when the breaker body 1A is coupled ( It can be configured by inserting the inclusion (2A) that can fill 12A).

5 (a) and 5 (b) are also other embodiments of the present invention, forming a main body 1B by forming a protrusion 11B fitted to the recess on the opposite side of the recess 11 to be riveted. The recessed portion 11A and the protrusion 11C may be formed between the main body 1C avoiding the riveting axis so that at least two or more of them can be configured to be sequentially coupled in a block manner.

The present invention configured as described above has at least two or more circuit breaker main bodies 1 fastened with rivets R, and through the ring 2 through which the rivets pass through the space 12 due to the depression 11. As a result, the engagement force and the assembly area (contact area) are enlarged by fitting the ring 2 to the space part 12 so as to be able to withstand the force to be displaced between the main bodies 1 due to the external force and the microvibration during tripping. Its role is to secure safety.

And in the other embodiment according to FIG. 5, the above function is also provided, but as shown in FIG. 5 (a) (b), the rivet coupling axis or the recessed portions 11 and 11A and the protrusions 11B and 11C of the surface avoided the same. This action can be achieved.

The present invention, which is constructed and operated as described above, is installed in residential and industrial distribution boards, and when the overload and abnormal current are generated, micro vibrations caused by trip or other distortions occur between circuit breakers due to external force. It is a useful design that solves the problem of adding the safety of the device.

Claims (4)

In the circuit breaker in which the auxiliary handle 90 is connected to the operation handle 20 and each of the trip mechanisms is connected by the trip bar 80, at least two or more are connected to each other and integrated into one mechanism. The recess 11 is formed on both sides of the breaker main body 1 on the axis to pass, and the ring 2 having the fixing rivet R is interposed therebetween is formed in the spaced part 12 which is stacked and connected. Circuit breaker with one multiple coupling structure. The method according to claim 1, wherein the recesses (11A) are formed on both sides of the circuit breaker body (1A) avoiding the axial line through which the fixing rivet passes, and the inclusions (2A) are connected to the stacked spaces (12A). A circuit breaker having a multiple coupling structure. The multiple coupling structure according to claim 1, wherein a recess 11 and a protrusion 11B are provided at one side of the breaker main body 1B on the axis through which the fixing rivet passes. Circuit breaker. 4. The circuit breaker according to claim 3, wherein the recessed portion (11A) and the projected portion (11C) are formed on the breaker body (1C) avoiding the axis line through which the fixing rivet (R) passes.