Dustproof mechanism of low-voltage switch

Abstract

The utility model relates to the field of switch cabinets, in particular to a low-voltage switch dustproof mechanism, which is arranged on a switch cabinet and comprises an air inlet box and an air outlet box, the air inlet box and the air outlet box are respectively arranged at the upper end and the lower end of the switch cabinet, the switch cabinet comprises a sealed cabinet body, a sealed cabinet door is hinged to the sealed cabinet body, and air inlet windows are arranged at the front ends of the air inlet box and the air outlet box. The air outlet box is vertically provided with a plurality of pipelines extending into the switch cabinet, the pipelines are provided with bidirectional fans, the pipelines extend upwards to be communicated with the air inlet box, the air inlet box is internally provided with air filter elements connected with the upper ends of the pipelines, the upper ends of the pipelines are provided with first electric valves, and the pipelines below the first electric valves are provided with a plurality of second electric valves. And a third electric valve is arranged on the pipeline above the first electric valve. The dust removal device has the advantage of good dust removal effect on the premise of guaranteeing heat dissipation.

Description

Technical Field

[0001] The utility model relates to the field of switch cabinets, in particular to a dustproof mechanism for a low-voltage switch. Background Art

[0002] Low-voltage switch is a common power distribution equipment, widely used in daily life, industrial production, and commercial activities. It is divided according to rated voltage: rated voltage of 1000V and below is called low voltage; rated voltage above 1000V is called high voltage. Large low-voltage switches need to be used in conjunction with switch cabinets. During the use of low-voltage switches, more heat will be generated, and the low-voltage switches need to be cooled. At the same time, it is necessary to reduce dust in the working environment of the low-voltage switch to prevent dust from affecting the normal operation of the low-voltage switch. Therefore, it is particularly necessary to develop a method to reduce dust in the working environment of the low-voltage switch while ensuring the heat dissipation of the low-voltage switch. Summary of the invention

[0003] The utility model aims to provide a dustproof mechanism for a low-voltage switch, which has the function of reducing dust in the working environment of the low-voltage switch under the premise of ensuring the heat dissipation of the low-voltage switch.

[0004] The technical solutions adopted are as follows:

[0005] A dustproof mechanism for a low-voltage switch is arranged on a switch cabinet, comprising an air inlet box and an air outlet box, the air inlet box and the air outlet box are respectively arranged at the upper and lower ends of the switch cabinet, the switch cabinet comprises a sealed cabinet body, the sealed box body is hinged with a sealed cabinet door, the front ends of the air inlet box and the air outlet box are both provided with air inlet windows, the air outlet box is vertically provided with a plurality of pipes extending into the switch cabinet, a two-way fan is installed on the pipe, the pipe extends upward and is connected to the air inlet box, an air filter element connected to the upper end of the pipe is arranged in the air inlet box, a first electric valve is arranged at the upper end of the pipe, a plurality of second electric valves are arranged on the pipe below the first electric valve, and a third electric valve is arranged on the pipe above the first electric valve.

[0006] Preferably, a sponge pad is provided at the inner bottom end of the air intake box.

[0007] Preferably, the second electric valve and the third electric valve are both facing the inner side of the switch cabinet.

[0008] Preferably, the air filter element is in the shape of a truncated cone with a larger outer diameter at the top and smaller at the bottom.

[0009] Preferably, the air inlet windows are all hinged with mesh plates.

[0010] Preferably, the bidirectional fan is arranged in the air outlet box.

[0011] Compared with the prior art, the beneficial effects are:

[0012] 1. The utility model utilizes a sealed cabinet door to cover a sealed cabinet body to achieve sealing of the switch cabinet. When heat dissipation is required inside the switch cabinet, the first electric valve is closed, the second electric valve and the third electric valve are opened, and the two-way fan is started to introduce air from the air inlet box. After being filtered by the air filter element, the air enters the switch cabinet from the third electric valve and then enters the pipeline from the second electric valve. In this process, the heat in the switch cabinet is taken away, and due to the air filter element, dust is prevented from entering the switch cabinet, and the dustproof effect is good.

[0013] 2. When the air filter element needs to be cleaned, the utility model closes the second electric valve and the third electric valve, opens the first electric valve, and reversely installs the two-way fan to introduce air from the air outlet box and exhaust it from the air inlet box. In this process, the dust on the air filter element is blown off.

[0014] 3. A sponge pad is laid at the inner bottom of the air inlet box of the utility model. When cleaning the air filter element, water is poured into the sponge pad to facilitate the sponge pad to absorb dust falling from the air filter element and avoid dust splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of a dustproof mechanism for a low-voltage switch of the utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of a dustproof mechanism for a low-voltage switch of the utility model.

[0017] Figure 3 yes Figure 2 The structural diagram at A in the middle,

[0018] In the figure: 1. switch cabinet, 2. air inlet box, 3. air outlet box, 4. mesh plate, 5. pipeline, 6. two-way fan, 7. air filter element, 8. first electric valve, 9. second electric valve, 10. third electric valve, 11. sponge pad. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. Figures 1 to 3 As shown:

[0020] Embodiment 1: A low-voltage switch dustproof mechanism is arranged on a switch cabinet 1, comprising an air inlet box 2 and an air outlet box 3, the air inlet box 2 and the air outlet box 3 are respectively arranged at the upper and lower ends of the switch cabinet 1, the switch cabinet 1 comprises a sealed cabinet body, the sealed cabinet body is hinged with a sealed cabinet door, the sealed cabinet door is covered on the sealed cabinet body, so as to realize the sealing of the switch cabinet 1,

[0021] The front ends of the air inlet box 2 and the air outlet box 3 are both provided with air inlet windows. The air outlet box 3 is vertically provided with a plurality of pipes 5 extending into the switch cabinet 1. A two-way fan 6 is installed on the pipe 5. The two-way fan 6 is a prior art and will not be described in detail here. The pipe 5 extends upward and communicates with the air inlet box 2. An air filter element 7 connected to the upper end of the pipe 5 is provided in the air inlet box 2. A first electric valve 8 is provided at the upper end of the pipe 5. A plurality of second electric valves 9 are provided on the pipe 5 below the first electric valve 8. A third electric valve 10 is provided on the pipe 5 above the first electric valve 8.

[0022] When the inside of the switch cabinet 1 needs to be cooled, the first electric valve 8 is closed, the second electric valve 9 and the third electric valve 10 are opened, and the two-way fan 6 is started to introduce air from the air inlet box 2. After being filtered by the air filter element 7, the air enters the inside of the switch cabinet 1 from the third electric valve 10, and then enters the pipeline 5 from the second electric valve 9. In this process, the heat in the switch cabinet 1 is taken away, and due to the air filter element 7, dust is prevented from entering the switch cabinet 1, and the dustproof effect is good.

[0023] When the air filter 7 needs to be cleaned, the second electric valve 9 and the third electric valve 10 are closed, the first electric valve 8 is opened, and the two-way fan 6 is reversed to introduce air from the air outlet box 3 and exhaust it from the air inlet box 2. In this process, the dust on the air filter 7 is blown off.

[0024] Embodiment 2: A low-voltage switch dustproof mechanism is arranged on a switch cabinet 1, comprising an air inlet box 2 and an air outlet box 3, the air inlet box 2 and the air outlet box 3 are respectively arranged at the upper and lower ends of the switch cabinet 1, the switch cabinet 1 comprises a sealed cabinet body, the sealed cabinet body is hinged with a sealed cabinet door, the sealed cabinet door is covered on the sealed cabinet body, so as to realize the sealing of the switch cabinet 1,

[0025] The front ends of the air inlet box 2 and the air outlet box 3 are both provided with air inlet windows, and the air inlet windows are both hinged with mesh plates 4. The air outlet box 3 is vertically provided with a plurality of pipes 5 extending into the switch cabinet 1, and a two-way fan 6 is installed on the pipe 5. The two-way fan 6 is a prior art and will not be described in detail here; the two-way fan 6 is arranged in the air outlet box 3, which is convenient for the maintenance of the two-way fan 6. The pipe 5 extends upward to communicate with the air inlet box 2. The air inlet box 2 is provided with an air filter element 7 connected to the upper end of the pipe 5. The air filter element 7 is a truncated cone with a larger outer diameter at the top and a smaller outer diameter at the bottom. The truncated cone with a larger outer diameter at the top and a smaller outer diameter at the bottom facilitates dust to fall from the air filter element 7 under the action of gravity.

[0026] A first electric valve 8 is arranged at the upper end of the pipe 5, a plurality of second electric valves 9 are arranged on the pipe 5 below the first electric valve 8, a third electric valve 10 is arranged on the pipe 5 above the first electric valve 8, the second electric valve 9 and the third electric valve 10 are both facing the inner side of the switch cabinet 1, a sponge pad 11 is laid at the inner bottom end of the air intake box 2, when cleaning the air filter element 7, water is injected into the sponge pad 11 to facilitate the sponge pad 11 to absorb dust falling from the air filter element 7 and avoid dust splashing.

[0027] The specific working process is as follows: the sealed cabinet door is covered on the sealed cabinet body to achieve the sealing of the switch cabinet 1. When the inside of the switch cabinet 1 needs to be cooled, the first electric valve 8 is closed, the second electric valve 9 and the third electric valve 10 are opened, and the two-way fan 6 is started to introduce air from the air inlet box 2. After being filtered by the air filter element 7, the air enters the inside of the switch cabinet 1 from the third electric valve 10, and then enters the pipeline 5 from the second electric valve 9. In this process, the heat in the switch cabinet 1 is taken away, and due to the air filter element 7, dust is prevented from entering the switch cabinet 1, and the dust-proof effect is good. When the air filter element 7 needs to be cleaned, water is injected into the sponge pad 11, the second electric valve 9 and the third electric valve 10 are closed, and the first electric valve 8 is opened. The two-way fan 6 is reversed to introduce air from the air outlet box 3 and discharge it from the air inlet box 2. In this process, the dust on the air filter element 7 is blown off.

[0028] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A dustproof mechanism for a low-voltage switch, characterized in that: It is arranged on the switch cabinet, including an air inlet box and an air outlet box, which are respectively arranged at the upper and lower ends of the switch cabinet. The switch cabinet includes a sealed cabinet body, and the sealed box body is hinged with a sealed cabinet door. The front ends of the air inlet box and the air outlet box are both provided with air inlet windows. The air outlet box is vertically provided with multiple pipes extending into the switch cabinet, and a two-way fan is installed on the pipe. The pipe extends upward and is connected with the air inlet box. An air filter element connected to the upper end of the pipe is arranged in the air inlet box, and a first electric valve is arranged at the upper end of the pipe, and multiple second electric valves are arranged on the pipe below the first electric valve, and a third electric valve is arranged on the pipe above the first electric valve.

2. A dust-proof mechanism for a low-voltage switch according to claim 1, characterized in that: The inner bottom end of the air intake box is paved with a sponge pad.

3. A dust-proof mechanism for a low-voltage switch according to claim 1, characterized in that: The second electric valve and the third electric valve are both facing the inner side of the switch cabinet.

4. A dustproof mechanism for a low-voltage switch according to claim 1, characterized in that: The air filter element is in the shape of a truncated cone with a larger outer diameter at the top and a smaller outer diameter at the bottom.

5. A dust-proof mechanism for a low-voltage switch according to claim 1, characterized in that: The air inlet windows are all hinged with mesh plates.

6. A dustproof mechanism for a low-voltage switch according to claim 1, characterized in that: The bidirectional fan is arranged in the air outlet box.

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