CN215869004U

CN215869004U - Moulded case circuit breaker that radiating effect is strong

Info

Publication number: CN215869004U
Application number: CN202122255790.6U
Authority: CN
Inventors: 叶晓朋; 孙晓峰; 侯志勤; 邓意; 王晨淼
Original assignee: Shangtu Electric Co ltd
Current assignee: Shangtu Electric Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-18
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a molded case circuit breaker with a strong heat dissipation effect, which belongs to the technical field of circuit breakers and comprises an upper cover and a base, wherein a static contact end is arranged in the base, a copper part is arranged at the lower part of the static contact end, heat dissipation fins are arranged at the lower part of the copper part, a heat dissipation channel used for improving the heat dissipation effect is arranged at the bottom of the base, the heat dissipation fins are arranged below the static contact end and the copper part in the base and penetrate through the heat dissipation channel of the base, heat generated by the movable contact end and the static contact end is guided to the heat dissipation channel through the heat dissipation fins, and is dissipated through air circulation in the heat dissipation channel, so that the heat of the molded case circuit breaker is effectively reduced, the damage of parts is avoided, and the service life is prolonged.

Description

Moulded case circuit breaker that radiating effect is strong

Technical Field

The utility model belongs to the technical field of circuit breakers, and particularly relates to a molded case circuit breaker with a strong heat dissipation effect.

Background

The existing molded case circuit breaker has the following disadvantages in use.

Because current moulded case circuit breaker in the use, the divide-shut brake of movable contact end and stationary contact end can produce a large amount of heats, and most moulded case circuit breaker on the market lacks heat dissipation mechanism or radiating effect is poor, and under the long-term in service behavior, cause the damage to the inside spare part of this moulded case circuit breaker easily to influence moulded case circuit breaker's life. Therefore, it is necessary to provide a molded case circuit breaker with a high heat dissipation effect.

Disclosure of Invention

Aiming at the problem of poor heat dissipation effect of the existing molded case circuit breaker, the utility model provides the molded case circuit breaker with the strong heat dissipation effect.

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a moulded case circuit breaker that radiating effect is strong, includes upper cover and base, be equipped with the stationary contact end in the base, this stationary contact end lower part is equipped with copper spare, copper spare lower part is equipped with radiating fin, open the base bottom has the radiating channel who is used for promoting the radiating effect.

Preferably, the heat dissipation channel includes a first air inlet, a second air inlet, a third air inlet, a first air outlet, a second air outlet, and a third air outlet.

Preferably, the first air inlet penetrates through two side walls of the base to form a first air inlet channel on the base, and the first air inlet channel is communicated with the first air outlet channel and penetrates through the adjacent side wall of the first air inlet to form a first air outlet.

Preferably, the second air inlet and the third air inlet are respectively located at the lower side of the first air inlet at two sides of the base and penetrate inwards relative to the base to form a second air inlet channel and a third air inlet channel, and the second air inlet channel and the third air inlet channel are communicated with the second air outlet channel and the third air outlet channel and penetrate to the first air outlet to form a second air outlet and a third air outlet.

Preferably, the heat dissipation fins are respectively arranged in the first air outlet channel, the second air outlet channel and the third air outlet channel in a penetrating manner.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the copper part is arranged at the lower end of the static contact end, the lower end of the copper part is connected with the radiating fins, the first air inlet, the second air inlet and the third air inlet are arranged on two sides of the base, air enters from the three air inlets, flows through the first air inlet channel, the second air inlet channel and the third air inlet channel, and is discharged from the first air outlet, the second air outlet and the third air outlet through the first air outlet channel, the second air outlet channel and the third air outlet channel, the radiating fins penetrate through the base and are arranged in the first air outlet channel, the second air outlet channel and the third air outlet channel, heat generated by the movable contact end and the static contact end is guided to the radiating channels through the radiating fins, and is dissipated through air circulation in the radiating channels, so that the heat of the plastic shell breaker is effectively reduced, the damage of parts is avoided, and the service life is prolonged.

Drawings

Fig. 1 is a schematic view of an overall structure of a molded case circuit breaker with a strong heat dissipation effect.

Fig. 2 is a schematic diagram of a bottom structure of a molded case circuit breaker with a strong heat dissipation effect.

Fig. 3 is a schematic diagram of an internal structure of a molded case circuit breaker with a strong heat dissipation effect (a base is not shown).

The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:

1. an upper cover; 2. a base; 2.1, a first air inlet; 2.2, a second air inlet; 2.3, a third air inlet; 2.4, a third air outlet; 2.5, a first air outlet; 2.6, a second air outlet; 3. a heat dissipating fin; 4. and (4) a copper part.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, which are schematic structural views of a molded case circuit breaker with a strong heat dissipation effect according to a preferred embodiment of the present invention, in this embodiment, the molded case circuit breaker includes an upper cover 1 and a base 2, a stationary contact end is disposed in the base 2, a copper part 4 is disposed below the stationary contact end, a heat dissipation fin 3 is disposed below the copper part 4, a heat dissipation channel for improving the heat dissipation effect is opened at the bottom of the base 2, the heat dissipation fin 3 penetrates through the base 2 and is disposed in the heat dissipation channel, and when air flows to the heat dissipation channel, the heat on the heat dissipation fin 3 is taken away, so that the heat in the molded case circuit breaker is reduced, the damage of parts is avoided, and the service life is prolonged.

In this embodiment, the heat dissipation channel includes a first air inlet 2.1, a second air inlet 2.2, a third air inlet 2.3, a first air outlet 2.5, a second air outlet 2.6, and a third air outlet 2.4, where the air inlets and the air outlets are all located at the inlet end of the molded case circuit breaker, and the lower end of the base 2 is divided into three heat dissipation channels by the corresponding air inlets and air outlets, so as to enhance the heat dissipation effect of the molded case circuit breaker.

In this embodiment, first air intake 2.1 runs through to set up in base 2 both sides wall and form first inlet air channel in base 2, this first inlet air channel intercommunication first air-out passageway and run through to the adjacent lateral wall of first air intake 2.1 and form first air outlet 2.5, first air intake 2.1 sets up respectively in base 2 both sides, and all be located this moulded case circuit breaker's inlet wire end, first inlet air channel and first air-out passageway become "T" font structure, the air that will get into through the first air intake 2.1 of base 2 both sides is discharged by first air outlet 2.5 again through first inlet air channel and first air-out passageway, thereby strengthen the circulation of air of moulded case circuit breaker bottom, effectively reduce whole temperature rise.

In this embodiment, the second air inlet 2.2 and the third air inlet 2.3 are respectively located at the lower side of the first air inlet 2.1 at the two sides of the base 2, and are inwardly communicated with each other relative to the base 2 to form a second air inlet channel and a third air inlet channel, the second air inlet channel and the third air inlet channel are communicated with the second air outlet channel and the third air outlet channel and penetrate to the first air outlet 2.5 to form a second air outlet 2.6 and a third air outlet 2.4, and the second air inlet 2.2, the second air outlet 2.6, the third air inlet 2.3 and the third air outlet 2.4 divide the base 2 of the base 2 into different heat dissipation channels, thereby enhancing the heat dissipation effect of the molded case circuit breaker and reducing the overall temperature rise.

In this embodiment, radiating fin 3 runs through respectively to set up in first air-out passageway, second air-out passageway and third air-out passageway, and radiating fin 3's run-through formula design for the air reduces radiating fin 3's temperature at the in-process of circulation, thereby reduces the temperature in the moulded case circuit breaker, has further improved the radiating effect.

While the utility model has been described in further detail in connection with specific embodiments thereof, it will be understood that the utility model is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the utility model, which should be considered to be within the scope of the utility model as defined by the appended claims.

Claims

1. A molded case circuit breaker with a strong heat dissipation effect,

the method is characterized in that:

including upper cover (1) and base (2), be equipped with the stationary contact end in base (2), this stationary contact end lower part is equipped with copper spare (4), copper spare (4) lower part is equipped with radiating fin (3), open base (2) bottom has the radiating passage who is used for promoting the radiating effect.

2. The molded case circuit breaker with strong heat dissipation effect according to claim 1, wherein: the heat dissipation channel comprises a first air inlet (2.1), a second air inlet (2.2), a third air inlet (2.3), a first air outlet (2.5), a second air outlet (2.6) and a third air outlet (2.4).

3. The molded case circuit breaker with strong heat dissipation effect according to claim 2, wherein: first air intake (2.1) run through set up in base (2) both sides wall and form first inlet air channel in base (2), and this first inlet air channel intercommunication first air-out passageway runs through to the adjacent lateral wall of first air intake (2.1) and forms first air outlet (2.5).

4. The molded case circuit breaker with strong heat dissipation effect according to claim 2, wherein: the second air inlet (2.2) and the third air inlet (2.3) are respectively positioned at the lower sides of the first air inlets (2.1) at the two sides of the base (2) and are communicated inwards relative to the base (2) to form a second air inlet channel and a third air inlet channel, and the second air inlet channel and the third air inlet channel are communicated with the second air outlet channel and the third air outlet channel and penetrate through the first air outlet (2.5) to form a second air outlet (2.6) and a third air outlet (2.4).

5. The molded case circuit breaker with strong heat dissipation effect according to claim 1, wherein: and the radiating fins (3) are respectively arranged in the first air outlet channel, the second air outlet channel and the third air outlet channel in a penetrating manner.