Active heat dissipation low-voltage circuit breaker

Abstract

The utility model discloses an active heat radiation low-voltage circuit breaker, which comprises a circuit breaker and a transformer, the transformer is arranged close to the circuit breaker, the circuit breaker is provided with a heat radiation assembly, the heat radiation assembly comprises a heat radiator and a temperature control switch, the heat radiator is detachably connected to the outer wall of the circuit breaker, and the temperature control switch is adhered to the outer wall of the circuit breaker. The transformer is connected with the circuit breaker through a wire, the transformer, the temperature control switch and the radiator are sequentially connected in series through wires, efficient heat dissipation is achieved through the modularized heat dissipation assembly, and the modularized heat dissipation assembly can be conveniently disassembled and installed on the outer wall of the circuit breaker. The radiator is quickly screwed with the clamping sleeve on the outer wall of the circuit breaker through the clamping block, and the installation is simple and convenient; meanwhile, the temperature control switch replaces a temperature sensor with low cost, an additional control module is not needed, and the overall cost is reduced. In addition, heat dissipation copper sheets are additionally arranged on the outer wall of the circuit breaker, the heat conduction effect is enhanced, a certain gap is formed between the heat dissipation copper sheets and the radiator, and air can flow out after heat exchange.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and in particular relates to an active heat dissipation low-voltage circuit breaker. Background Art

[0002] Low-voltage circuit breakers generate a lot of heat during operation. If this heat cannot be dissipated in time, the temperature of the circuit breaker will rise, which may cause failure or shorten its service life.

[0003] Traditional low-voltage circuit breakers often lack effective heat dissipation measures or have suboptimal heat dissipation. While some high-end circuit breakers are equipped with heat dissipation systems, these are often costly and unsuitable for widespread adoption. While some existing heat dissipation solutions have been proposed, such as using temperature sensors and control modules for intelligent heat dissipation, these solutions are often costly and require additional control circuitry, increasing system complexity and failure rates. Utility Model Content

[0004] To solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: an active heat dissipation low-voltage circuit breaker, comprising a circuit breaker and a transformer, wherein the transformer is arranged adjacent to the circuit breaker, and a heat dissipation assembly is provided on the circuit breaker, wherein the heat dissipation assembly comprises a radiator and a temperature-controlled switch, wherein the radiator is detachably connected to the outer wall of the circuit breaker, and the temperature-controlled switch is bonded to the outer wall of the circuit breaker, and the transformer is connected to the circuit breaker via a wire, and the transformer, the temperature-controlled switch, and the radiator are connected in series via wires.

[0005] Furthermore, a clamping block is provided on the outer wall of the radiator, and a clamping sleeve adapted to the clamping block is provided on the outer wall of the circuit breaker.

[0006] Furthermore, a heat dissipation copper sheet is provided on the outer wall of the circuit breaker, and the radiator is located above the heat dissipation copper sheet.

[0007] Furthermore, the distance α between the heat dissipation copper sheet and the radiator is not less than 5 mm.

[0008] Furthermore, two groups of heat dissipation components are provided.

[0009] Furthermore, a wiring groove is provided on the back of the radiator.

[0010] Furthermore, the open end of the ferrule is connected with a hook.

[0011] The beneficial effects of the present invention are as follows: efficient heat dissipation is achieved through a modular heat dissipation component, which includes a radiator and a temperature control switch, and can be easily disassembled and installed on the outer wall of the circuit breaker. The radiator uses a card block to quickly screw with the card sleeve on the outer wall of the circuit breaker, which is easy to install; at the same time, the temperature control switch replaces the temperature sensor at a lower cost, and does not require an additional control module, reducing the overall cost. A wiring groove is provided on the back of the radiator to avoid the interlacing of wires and the structure is compact. In addition, a heat dissipation copper sheet is added to the outer wall of the circuit breaker to enhance the heat conduction effect and form a certain gap with the radiator, which is conducive to the outflow of air after heat exchange. In particular, the circuit breaker is equipped with two sets of heat dissipation components, which are set to start temperatures of 40 degrees and 50 degrees respectively, to achieve graded heat dissipation control, which not only ensures the heat dissipation effect but also saves energy. The hook design at the open end of the card sleeve effectively prevents the card block from falling off, ensuring that the heat dissipation component is firmly installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is the main view of the utility model;

[0014] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0015] Figure 4 This is a schematic diagram of the connection relationship between the clamping block and the clamping sleeve in the present utility model;

[0016] Figure 5 for Figure 4 Enlarged view of middle part B;

[0017] Figure 6 It is a structural diagram of the radiator in this utility model.

[0018] The meaning of the numbers in the figure: 1-circuit breaker; 2-transformer; 3-radiator; 4-temperature control switch; 5-block; 6-sleeve; 7-heat dissipation copper sheet; 8-wiring trough; 9-hook. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-6The present invention provides the following technical solution: an active heat dissipation low-voltage circuit breaker 1, comprising a circuit breaker 1 and a transformer 2. The transformer 2 is arranged adjacent to the circuit breaker 1. The circuit breaker 1 is provided with a heat dissipation component, which includes a radiator 3 and a temperature-controlled switch 4. The radiator 3 is detachably connected to the outer wall of the circuit breaker 1, and the temperature-controlled switch 4 is adhered to the outer wall of the circuit breaker 1. The transformer 2 is connected to the circuit breaker 1 through a wire, and the transformer 2, the temperature-controlled switch 4, and the radiator 3 are connected in series through wires.

[0021] The above structure allows the heat dissipation assembly to be installed on circuit breakers 1 that otherwise lack heat dissipation. The temperature switch operates primarily based on a bimetallic strip as a temperature-sensing element. When the temperature rises to the operating temperature, the bimetallic strip generates internal stress, causing it to rapidly actuate, opening or closing contacts and disconnecting or connecting the circuit, thereby providing thermal protection. Compared to temperature sensors, temperature switches are more cost-effective and eliminate the need for a control module, making the entire heat dissipation assembly more cost-effective and promising a wider market potential.

[0022] In this embodiment, a clamping block 5 is provided on the outer wall of the heat sink 3 , and a clamping sleeve 6 adapted to the clamping block 5 is provided on the outer wall of the circuit breaker 1 .

[0023] With the above structure, the clamping blocks 5 are symmetrically arranged on the outer wall of the radiator 3 , and the cooling fan can be installed on the circuit breaker 1 by screwing it in, which is convenient and quick.

[0024] In this embodiment, a heat dissipation copper sheet 7 is provided on the outer wall of the circuit breaker 1 , and the heat sink 3 is located above the heat dissipation copper sheet 7 .

[0025] With the above structure, the heat dissipation copper sheet 7 has a good heat conduction effect. The provision of the heat dissipation copper sheet 7 is beneficial to natural air cooling on the one hand, and can improve the heat exchange efficiency on the other hand.

[0026] In this embodiment, the distance α between the heat dissipation copper sheet 7 and the heat sink 3 is not less than 5 mm.

[0027] With the above structure, the radiator 3 blows cold air onto the heat dissipation copper sheet 7 in a forced air heat dissipation manner, and the reserved gap is used for the air after heat exchange to flow outside the circuit breaker 1.

[0028] Preferably, the heat dissipation components are provided in two groups, which have better heat dissipation effect. The temperature control switch 4 in one group of heat dissipation components is 40 degrees, and the temperature switch in the other group of heat dissipation components is 50 degrees; when the temperature is greater than 40 degrees and less than 50 degrees, one group of heat dissipation components operates; when the temperature is greater than 50 degrees, the two groups of heat dissipation components operate at the same time.

[0029] In this embodiment, a wiring groove 8 is provided on the back of the heat sink 3 .

[0030] The above structure can avoid the wires of the heat sink 3 from being crossed, and space is reserved for placing the wires, making the structure more compact.

[0031] In this embodiment, the open end of the clamping sleeve 6 is connected with a clamping hook 9 .

[0032] The above structure can prevent the clamping block 5 from falling out of the clamping sleeve 6, thus achieving a preventive technical effect.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An active heat dissipation low-voltage circuit breaker, comprising a circuit breaker and a transformer, characterized in that: The transformer is arranged adjacent to the circuit breaker. The circuit breaker is provided with a heat dissipation assembly, which includes a radiator and a temperature-controlled switch. The radiator is detachably connected to the outer wall of the circuit breaker. The temperature-controlled switch is adhered to the outer wall of the circuit breaker. The transformer is connected to the circuit breaker via a wire. The transformer, the temperature-controlled switch, and the radiator are connected in series via the wire.

2. The active heat dissipation low-voltage circuit breaker according to claim 1, characterized in that: The outer wall of the radiator is provided with a clamping block, and the outer wall of the circuit breaker is provided with a clamping sleeve adapted to the clamping block.

3. The active heat dissipation low-voltage circuit breaker according to claim 2, characterized in that: The outer wall of the circuit breaker is provided with a heat dissipation copper sheet, and the radiator is located above the heat dissipation copper sheet.

4. The active heat dissipation low-voltage circuit breaker according to claim 3, characterized in that: The distance α between the heat dissipation copper sheet and the radiator is not less than 5 mm.

5. The active heat dissipation low-voltage circuit breaker according to claim 1, characterized in that: There are two groups of heat dissipation components.

6. The active heat dissipation low-voltage circuit breaker according to claim 1, characterized in that: A wiring groove is provided on the back of the radiator.

7. The active heat dissipation low-voltage circuit breaker according to claim 2, characterized in that: The open end of the ferrule is connected with a hook.

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