Dustproof circuit breaker

Abstract

The utility model relates to circuit breaker technical field especially relates to a dustproof circuit breaker, including first dustproof box and second dustproof box and circuit breaker equipment, be provided with first sealing washer between first dustproof box and second dustproof box, first dustproof box and second dustproof box open have air inlet, first dustproof box and second dustproof box are provided with the blocking component for blocking outside dust in. The utility model lets outside air from one side air inlet place enter, since the air inlet is obliquely upwards and is arranged, makes part dust be stopped by air inlet, after air is blocked by first upper baffle, second upper baffle, first lower baffle and second lower baffle in proper order, to let part dust in air be stopped, and air flows in from the gap between first upper baffle, second upper baffle and first lower baffle and second lower baffle again, the rest dust in air is further stopped by blocking inclined plate, and reduces the probability that circuit breaker equipment happens to ground short circuit because of conductive particle in dust.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a dustproof circuit breaker. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and close, carry, and interrupt current under abnormal circuit conditions within a specified time. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their application range. The boundary between high and low voltage is relatively blurred. Generally, circuit breakers above 3kV are referred to as high-voltage electrical appliances.

[0003] Existing circuit breakers are mostly used in outdoor environments, where there is a lot of dust. If a lot of dust accumulates on the surface of the circuit breaker, the circuit breaker is very likely to short-circuit to ground due to the conductive particles in the dust. However, existing circuit breakers lack dustproof components, so it is impossible to prevent dust from accumulating on the surface of the circuit breaker, which is not conducive to the long-term use of the circuit breaker. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that existing circuit breakers lack dustproof components and cannot avoid dust accumulation on the surface of the circuit breaker, and to propose a dustproof circuit breaker.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dustproof circuit breaker includes a first dustproof box and a second dustproof box, and a circuit breaker device. A first sealing gasket is provided between the first dustproof box and the second dustproof box. The first dustproof box and the second dustproof box are inclinedly provided with air inlets. The first dustproof box and the second dustproof box are provided with connection ports, and the connection ports are provided with second sealing gaskets. The first dustproof box and the second dustproof box are provided with blocking components for blocking external dust.

[0006] Preferably, the blocking component includes a first upper baffle and a second upper baffle that are respectively fixedly installed inside the first dustproof box and the second dustproof box, and a first lower baffle and a second lower baffle that are respectively fixedly installed inside the first dustproof box and the second dustproof box.

[0007] Preferably, the first upper baffle and the second upper baffle are movably aligned, and the first upper baffle and the second upper baffle are close to the air inlet.

[0008] Preferably, the first lower baffle and the second lower baffle are movably aligned, and the first lower baffle and the second lower baffle are located below the first upper baffle and the second upper baffle.

[0009] Preferably, both the first upper baffle and the second upper baffle are fixedly equipped with blocking inclined plates, and the two blocking inclined plates are located above the first lower baffle and the second lower baffle.

[0010] Preferably, the first upper baffle has a locking hole, and the second upper baffle is fixedly connected with a locking post. The first upper baffle and the second upper baffle are connected by a locking hole and a locking post.

[0011] Compared with the prior art, the present invention has the following advantages: This invention allows outside air to enter the first and second dustproof boxes through an air inlet on one side. Because the air inlet is angled upwards, some dust is blocked by the air inlet. Then, the air is blocked in sequence by the first upper baffle, the second upper baffle, the first lower baffle, and the second lower baffle, so that some dust in the air is blocked. The air then flows in through the gap between the first upper baffle, the second upper baffle, the first lower baffle, and the second lower baffle. The remaining dust in the air is further blocked by the obstructing plates, so as to prevent a large amount of dust from entering the circuit breaker equipment and reduce the probability of the circuit breaker equipment experiencing a short circuit to ground due to conductive particles in the dust. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a dustproof circuit breaker proposed in this utility model; Figure 2 This is a right sectional view of a dustproof circuit breaker proposed in this utility model; Figure 3 This is a front cross-sectional view of a dustproof circuit breaker proposed in this utility model.

[0013] In the diagram: 1. First dustproof box; 2. Second dustproof box; 3. Circuit breaker equipment; 4. First sealing gasket; 5. Air inlet; 6. Connection port; 7. Second sealing gasket; 8. First upper baffle; 9. Second upper baffle; 10. First lower baffle; 11. Second lower baffle; 12. Blocking ramp; 13. Locking hole; 14. Locking post. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-3 A dustproof circuit breaker includes a first dustproof box 1, a second dustproof box 2, and a circuit breaker device 3. The circuit breaker device 3 is placed inside the first dustproof box 1 and the second dustproof box 2. The first dustproof box 1 and the second dustproof box 2 are then installed in a distribution cabinet. A first sealing gasket 4 is provided between the first dustproof box 1 and the second dustproof box 2 to seal the gap between them and prevent dust from entering. The first dustproof box 1 and the second dustproof box 2 are inclinedly provided with air inlets 5, as shown in the attached figure. Figure 2As shown, the air inlet 5 is angled upwards to block some dust from the outside air. The first dustproof box 1 and the second dustproof box 2 have connection ports 6, through which wires are inserted to connect to the circuit breaker device 3. At the same time, the connection port 6 is provided with a second sealing gasket 7 to prevent dust from entering from the connection port 6. The first dustproof box 1 and the second dustproof box 2 are provided with blocking components to block external dust, preventing a large amount of dust from entering the circuit breaker device 3 and reducing the probability of the circuit breaker device 3 short-circuiting to ground due to conductive particles in the dust.

[0016] Preferably, the blocking component includes a first upper baffle 8 and a second upper baffle 9 respectively fixedly installed inside the first dustproof box 1 and the second dustproof box 2, and a first lower baffle 10 and a second lower baffle 11 respectively fixedly installed inside the first dustproof box 1 and the second dustproof box 2; when the first dustproof box 1 and the second dustproof box 2 are closed, the first upper baffle 8 and the second upper baffle 9 are movably aligned, the first lower baffle 10 and the second lower baffle 11 are movably aligned, and the first upper baffle 8 and the second upper baffle 9 are close to the air inlet 5, while the first lower baffle 10... The first upper baffle 8 and the second upper baffle 9 are located below the first upper baffle 8 and the second upper baffle 9, so that some dust in the air is blocked by the first upper baffle 8, the second upper baffle 9, the first lower baffle 10 and the second lower baffle 11 in sequence. At the same time, since the first upper baffle 8 and the second upper baffle 9 are both fixedly installed with blocking inclined plates 12, and the two blocking inclined plates 12 are located above the first lower baffle 10 and the second lower baffle 11, the remaining dust in the air is further blocked by the blocking inclined plates 12, so as to prevent a large amount of dust from entering the circuit breaker device 3.

[0017] Preferably, since the first upper baffle 8 has a locking hole 13 and the second upper baffle 9 is fixedly connected with a locking post 14, the first dust box 1 and the second dust box 2 are connected by a locking hole 13 and a locking post 14.

[0018] The functional principle of this utility model can be explained through the following operation methods: When the circuit breaker device 3 is operating, outside air enters the first dustproof box 1 and the second dustproof box 2 through the air inlet 5 on one side, as shown in the attached diagram. Figure 2 As shown, since the air inlet 5 is set at an upward angle, some dust is blocked by the air inlet 5. Then, the air is blocked in sequence by the first upper baffle 8, the second upper baffle 9, the first lower baffle 10 and the second lower baffle 11, so that some dust in the air is blocked. The air then flows in from the gap between the first upper baffle 8, the second upper baffle 9 and the first lower baffle 10 and the second lower baffle 11. The remaining dust in the air is further blocked by the obstructing inclined plate 12 to prevent a large amount of dust from entering the circuit breaker device 3. The air flows out from the air inlet 5 on the other side to dissipate heat from the circuit breaker device 3.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dustproof circuit breaker, comprising a first dustproof box (1) and a second dustproof box (2) and a circuit breaker device (3), characterized in that, A first sealing gasket (4) is provided between the first dust box (1) and the second dust box (2). The first dust box (1) and the second dust box (2) are inclinedly provided with air inlets (5). The first dust box (1) and the second dust box (2) are provided with connection ports (6). The connection ports (6) are provided with second sealing gaskets (7). The first dust box (1) and the second dust box (2) are provided with blocking components for blocking external dust.

2. The dustproof circuit breaker according to claim 1, characterized in that, The blocking component includes a first upper baffle (8) and a second upper baffle (9) which are respectively fixedly installed in the first dustproof box (1) and the second dustproof box (2), and a first lower baffle (10) and a second lower baffle (11) which are respectively fixedly installed in the first dustproof box (1) and the second dustproof box (2).

3. A dustproof circuit breaker according to claim 2, characterized in that, The first upper baffle (8) and the second upper baffle (9) are movably aligned, and the first upper baffle (8) and the second upper baffle (9) are close to the air inlet (5).

4. A dustproof circuit breaker according to claim 2, characterized in that, The first lower baffle (10) and the second lower baffle (11) are movably aligned, and the first lower baffle (10) and the second lower baffle (11) are located below the first upper baffle (8) and the second upper baffle (9).

5. A dustproof circuit breaker according to claim 4, characterized in that, Both the first upper baffle (8) and the second upper baffle (9) are fixedly equipped with blocking inclined plates (12), and the two blocking inclined plates (12) are located above the first lower baffle (10) and the second lower baffle (11).

6. A dustproof circuit breaker according to claim 5, characterized in that, The first upper baffle (8) has a locking hole (13), and the second upper baffle (9) is fixedly connected with a locking post (14). The first upper baffle (8) and the second upper baffle (9) are connected by a locking hole (13) and a locking post (14).

Images