KR20160080635A

KR20160080635A - a circuit breaker of radiation fin

Info

Publication number: KR20160080635A
Application number: KR1020140193227A
Authority: KR
Inventors: 이원진
Original assignee: 이원진
Priority date: 2014-12-30
Filing date: 2014-12-30
Publication date: 2016-07-08

Abstract

The present invention relates to a heat dissipation structure of a wiring breaker, and more particularly, to a heat dissipation structure in which a radiator having radiating fins is connected to a circuit breaker by means of a " └ " type bracket, The present invention relates to an image forming apparatus.
The present invention is characterized in that an opening and closing device for detecting a current equal to or larger than a rated current and for blocking a circuit is built in the case 11 and terminals 12 for connection of power are formed on both sides of the case 11 The wiring breaker 10 includes a heat radiator 20 having radiating fins 22 formed on both sides of the support plate 21 and a bracket 30 of a "?" Type in which the horizontal plate 32 is bent in the vertical plate 31 And the vertical plate 31 of the bracket 30 is fitted and fixed to the guide groove 21a formed in the support plate 21. The horizontal plate 32 is coupled to the terminal 12 of the wire breaker 10, And the heat generated in the circuit breaker (10) can be discharged through the external radiator (20).

Description

BACKGROUND ART [0002] A circuit breaker of radiation fin

The present invention relates to a heat dissipation structure of a wiring breaker, and more particularly, to a heat dissipation structure in which a radiator having radiating fins is connected to a circuit breaker by means of a " └ " type bracket, The present invention relates to an image forming apparatus.

In general, a circuit breaker is a mechanical device that cuts off the current flow to prevent an electric safety accident when a current over a rated current flows in an electric circuit. Various types of circuit breakers are used from home to high pressure depending on the application.

In such a circuit breaker, when the power is applied through the input terminal, the internal temperature rises due to the contact resistance generated in the circuit breaker or the heat generated from the circuit elements in the process of the current flow, so that a heat dissipation system This was desperately required.

[0002] Conventionally, a regenerative power generator is disclosed in Korean Utility Model Registration No. 20-0308138 entitled " Heat Sinking Device for Circuit Breaker "(Prior Art 1) and Published Japanese Patent Application No. 10-2014-0063620 entitled" Circuit Breaker Including Ventilation Channel for Effective Heat Dissipation " ) Have been proposed.

In the prior art 1, a terminal portion is supplied with power from a converter inside the case; A mover which transmits power transmitted through the terminal portion to the load side; An opening and closing device for forming openings and closed paths by contacting and opening the mover with the terminal portions; An overcurrent detecting unit that detects an overcurrent transmitted to the mover through the terminal unit; And an arc extinguishing device for extinguishing an arc generated between the terminal portion and the mover when an overcurrent detected by the overcurrent detecting portion is generated, characterized in that a gap is formed between the terminal portion and the case in which the terminal portion is installed Of the circuit breaker.

The prior art 2 comprises a housing in which a first switch gear zone and a second switch gear zone are arranged and is provided with a quenching chamber device within the first switchgear zone and a contact with movable contact pieces positioned opposite the fixed contact pieces, A circuit breaker in which a slide device is arranged and a current release group comprising a short circuit and an overload release are arranged in a second switchgear zone, the continuous ventilation channel comprising: The housing walls being formed along the stationary contact pieces.

However, the prior art 1 is described to give the outside air flows into the inside, the contact area between the terminal portion and the casing is minimized, to cool the casing through the heat releasing grooves formed in the contact area between the terminal and the case, the prior art 2 A ventilation channel is formed in the wall of the housing to cool the housing by the air flow caused by the convection of the circuit breaker so that the heat emission is restricted and rapid heat dissipation is difficult to enhance the heat radiation effect.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a heat dissipation structure of a wiring breaker of high efficiency and high functionality which can quickly release heat by coupling an external radiator to a terminal of a circuit breaker.

According to an aspect of the present invention for achieving the above object, an opening / closing device for detecting a current exceeding a rated current and for blocking a circuit is built in a casing (11) Shaped brackets 10 formed by bending a horizontal plate 32 on a vertical plate 31 and a radiator 20 having radiating fins 22 formed on both sides of the support plate 21, The vertical plate 31 of the bracket 30 is fitted and fixed to the guide groove 21a formed in the support plate 21 and the horizontal plate 32 is connected to the terminal 12 of the wire breaker 10 So that the heat generated in the circuit breaker 10 can be dissipated through the external radiator 20.

As described above, according to the present invention as described above, when an overload exceeding the rated current is generated in the current flowing in the wire breaker 10 and high temperature is generated, the metal terminal 12, the bracket 30, Heat can be quickly discharged through the heat radiating fins 20 and can be dissipated to the outside through the radiating fins 22 to quickly cool the circuit breaker 10, so that the circuit breaker can be used very safely and the structure of the radiator 20 is simple while foreign as being easy and can structure so increasing ease of use to be assembled, the radiator 20 is "└" type is supported by the bracket 30, the efficiency of the other hand, heat dissipation takes up the place to be minimized is formed in very high It is possible to provide a high-efficiency and high-functionality wiring breaker with excellent competitiveness.

1 is an exploded perspective view illustrating an embodiment of the present invention,
2 is a perspective view illustrating an embodiment of the present invention,
3 is a partial cross-sectional view illustrating an embodiment of the present invention,
4 is a side view illustrating a combined structure of a radiator and a bracket according to the present invention.

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

As shown in Figs. 1 and 4, the wiring breaker 10 according to the present invention includes a case 11 having a rectangular shape. Inside the case 11, a current exceeding a rated current is detected, And has a built-in opening / closing device.

Terminals 12 for connection of power are formed on both sides of the case 11 and the both terminals 12 are exposed to the outside of the case 11.

Of course, since the wiring breaker 10 having the above-described configuration is a well-known known technology, the detailed internal structure of the circuit breaker is not shown.

However, in the present invention, the most important characteristic lies in the configuration of the external radiator 20 which is coupled to the wiring breaker 10 to release heat.

That is, the radiator 20 is constructed such that the radiating fins 22 are horizontally formed on both sides of the vertically erected support plate 21, and the radiator 20 is formed by extruding a non-ferrous metal having a good thermal conductivity and cutting it to a required length will be.

A continuous uneven surface 22a is formed on the upper surface of the radiating fin 22 located at the uppermost position in the radiator 20 and the uneven surface 22a is configured to further increase heat emission efficiency, The surface 22a is formed integrally with the radiating fin 22 when the non-ferrous metal is extruded long.

The radiator 20 is connected to the wire breaker 10 by a bracket 30 formed by bending a horizontal plate 32 to the vertical plate 31.

That is, the support plate 21 is formed with a lower guided groove 21a, and the vertical plate 31 of the bracket 30 is fixedly inserted into the guide groove 21a, and the radiating fins 22 The heat radiator 20 and the bracket 30 are firmly coupled and fixed by the rivet 34 which is inserted through the support plate 21 and the bracket 30 between the support plate 21 and the bracket 30.

The horizontal plate 32 of the bracket 30 is coupled to the terminal 12 of the wire breaker 10 to discharge the heat generated by the wire breaker 10 through the external radiator 20.

In other words, engagement holes 32b are formed at both sides of the cutout groove 32a of the horizontal plate 32, and the bolts 33, which are inserted into the engagement holes 32b and fastened to the terminals 12, Is connected to the terminal (12) of the wire breaker (10).

The bracket 30 connecting the radiator 20 is coupled to the power input terminal 12 of the wire breaker 10 but connected to the output terminal (not shown) opposite to the case 11 It can be done.

In the present invention having the above-described configuration, when an overload is formed in the current flowing in the wiring breaker 10 and a high temperature is generated, the metal terminal 12 having excellent thermal conductivity, the bracket 30 and the radiator 20 The heat generated inside the case 11 can be quickly radiated to the outside through the heat radiation fins 22 to cool the wiring breaker 10 quickly so that the breaker can be used very safely. It is possible to implement a highly functional wiring breaker with high heat dissipation efficiency which can safely protect workers.

In addition, the structure of the radiator 20 is simple and quick and easy to assemble to enhance the convenience of use, and the radiator 20 is supported by the bracket 30 to minimize the occupancy of the radiator 20, A high efficiency and a high functionality wiring breaker can be provided.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be resorted to without departing from the scope of the appended claims.

10: Wiring breaker 11: Case
12: Terminal 20: Radiator
21: support plate 21a: guide groove
22: radiating fin 22a: uneven surface
30: bracket 31: vertical plate
32: Horizontal plate 32a: Cutting groove
32b: coupling hole 33: bolt
34: Rivet

Claims

A wire breaker (10) having an opening / closing device for detecting a current exceeding a rated current and shutting off a circuit inside the case (11) and terminals (12)
A heat radiator 20 in which radiating fins 22 are formed on both sides of the support plate 21 and a bracket 30 in which a horizontal plate 32 is bent in the vertical plate 31, The vertical plate 31 of the bracket 30 is fitted and fixed to the formed guide groove 21a so that the horizontal plate 32 is connected to the terminal 12 of the wire breaker 10 and the heat generated in the wire breaker 10 And the external heat radiator (20).

The method according to claim 1,
A continuous uneven surface 22a is formed on the upper surface of the radiating fin 22 located on the uppermost side of the radiator 20,
Wherein the heat radiator (20) and the bracket (30) are firmly engaged and fixed by the rivet (34) inserted through the support plate (21) and the bracket (30) between the radiating fins (22) Heat dissipation structure.

The method according to claim 1,
The engaging holes 32b are bored in both sides of the cutout groove 32a of the horizontal plate 32 and the bracket 30 is fastened by the bolts 33 which are fastened to the terminals 12 through the fastening holes 32b, Is connected to the terminal (12) of the circuit breaker (10).