Power distribution cabinet suitable for dusty environment

Abstract

The utility model discloses a power distribution cabinet suitable for dusty environment, which comprises a dustproof cabinet body and a heat dissipation mechanism, a dustproof air inlet window is arranged in the middle of a bottom plate of the dustproof cabinet body, fixing feet are arranged at the lower part of the bottom plate of the dustproof cabinet body, an exhaust pipe is arranged at the top of the dustproof cabinet body, and a dustproof net is arranged in the exhaust pipe. A ventilation supporting screen plate is arranged in the middle of an inner cavity of the dustproof cabinet body, and an electrical device is installed on the upper portion of the ventilation supporting screen plate. The heat dissipation mechanism comprises a controller, a temperature sensor and a heat dissipation fan, the temperature sensor is installed in the dustproof cabinet body, the heat dissipation fan is installed on the upper portion of the dustproof air inlet window, and the temperature sensor and the heat dissipation fan are connected with the controller. According to the utility model, electrical devices in the power distribution cabinet are cooled by using the heat dissipation fan, and external dust is prevented from entering the power distribution cabinet by using the dustproof net in the exhaust pipe at the top of the dustproof cabinet body and the dustproof air inlet window on the bottom plate, so that the normal operation of the electrical devices is effectively prevented from being influenced by dust deposition in the power distribution cabinet while the cooling effect is ensured.

Description

Technical Field

[0001] The utility model relates to a power distribution cabinet which can operate safely for a long time in a dusty environment and belongs to the technical field of power distribution. Background Art

[0002] The distribution cabinet (box) can be divided into power distribution cabinet (box), lighting distribution cabinet (box) and metering cabinet (box). It is the final equipment of the distribution system and plays the role of connecting the circuit and controlling the line.

[0003] Since there are a large number of electrical devices inside the distribution cabinet, some components will generate heat during use, which will increase the temperature inside the cabinet and affect the normal operation of the electrical devices. Therefore, most distribution cabinets are equipped with heat dissipation windows and cooling fans to cool the electrical devices inside the cabinet through the circulation of air inside and outside the cabinet. However, for steel enterprises, due to the large amount of dust in the working environment, dust will be deposited on the electrical devices during the cooling process, affecting the heat dissipation effect, and in severe cases, it may cause short circuit failures. Therefore, it is very necessary to design a distribution cabinet suitable for dusty environments. Utility Model Content

[0004] The utility model aims to provide a power distribution cabinet suitable for dusty environments to prevent dust from Power distribution cabinet Internal deposits affect the normal operation of electrical devices.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A power distribution cabinet suitable for dusty environments comprises a dustproof cabinet body and a heat dissipation mechanism, wherein a dustproof air inlet window is installed in the middle of the bottom plate of the dustproof cabinet body, fixed feet are installed at the lower parts of the four corners of the bottom plate, an exhaust pipe is installed on the top of the dustproof cabinet body, a dustproof net is arranged in the exhaust pipe, a breathable support mesh plate is arranged in the middle of the inner cavity of the dustproof cabinet body, the edge of the breathable support mesh plate is fixedly connected to the side wall of the dustproof cabinet body, and an electrical device is installed on the upper part of the breathable support mesh plate; the heat dissipation mechanism comprises a controller, a temperature sensor and a heat dissipation fan, the temperature sensor is installed inside the dustproof cabinet body, the heat dissipation fan is installed on the upper part of the dustproof air inlet window, and the temperature sensor and the heat dissipation fan are connected to the controller.

[0007] The above-mentioned distribution cabinet is suitable for dusty environments, and the dustproof cabinet is also provided with a blockage alarm device, which includes a wind speed sensor and an alarm light. A funnel-shaped guide pipe is connected to the lower end of the exhaust pipe, and the wind speed sensor is installed on the inner wall of the lower end of the guide pipe. The signal output end of the wind speed sensor is connected to the controller, and the alarm light is fixed on the top of the dustproof cabinet, and the control end of the alarm light is connected to the controller.

[0008] The above-mentioned power distribution cabinet is suitable for dusty environments, and the dustproof net is provided with two layers, namely an upper dustproof net and a lower dustproof net. The upper dustproof net is provided with a frame around it, and a slide groove is provided on the inner wall of the exhaust pipe. The frame is slid into the slide groove from the socket on one side of the exhaust pipe, and the lower dustproof net is located below the upper dustproof net and is fixedly connected to the inner wall of the exhaust pipe.

[0009] The above-mentioned power distribution cabinet is suitable for dusty environments, and the heat dissipation fan includes a drive motor and a heat dissipation fan. The drive motor is fixedly installed on the upper part of the dust-proof air inlet window, and the heat dissipation fan is fixedly installed on the transmission shaft at the upper end of the drive motor. The control end of the drive motor is connected to the controller.

[0010] The above-mentioned power distribution cabinet suitable for dusty environments has a movable door installed on one side wall of the dustproof cabinet body.

[0011] The above-mentioned power distribution cabinet is suitable for dusty environments, and the air supply direction of the cooling fan is upward.

[0012] The utility model utilizes a heat dissipation fan to cool the electrical device in the power distribution cabinet, utilizes a dustproof net in the exhaust pipe on the top of the dustproof cabinet and a dustproof air inlet window on the bottom plate to prevent external dust from entering, and can effectively prevent dust from entering while ensuring the cooling effect. Power distribution cabinet Internal deposition may affect the normal operation of electrical devices.

[0013] The blockage alarm device can send out an alarm message in time when the dustproof net and the dustproof air inlet window are blocked by external dust, which can remind relevant personnel to clean up the dust in time to ensure the cooling effect of the electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 1 A partial enlarged view of

[0018] Figure 4 for Figure 2 A partial enlarged view of .

[0019] The numbers in the figure are as follows: 1. Dust-proof cabinet; 101. Bottom plate; 102. Fixed foot; 103. Side wall; 104. Movable door; 105. Electrical device; 106. Exhaust pipe; 107. Mounting slot; 108. Dust-proof net; 1081. Slide slot; 1082. Frame; 1083. Upper dust-proof net; 1084. Lower dust-proof net; 1085. Guide duct; 1086. Wind speed sensor; 1087. Controller; 1088. Alarm light; 1089. Dust-proof air inlet window; 2. Heat dissipation mechanism; 201. Temperature sensor; 202. Drive motor; 203. Cooling fan; 107. Breathable support mesh plate. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4 The utility model comprises a dustproof cabinet 1 and a heat dissipation mechanism 2 , and the heat dissipation mechanism 2 is located below the dustproof cabinet 1 .

[0021] The dustproof cabinet 1 is in the shape of a rectangular parallelepiped, with a dustproof air inlet window 1089 installed in the middle of its bottom plate 101, fixed feet 102 installed at the lower parts of the four corners, a movable door 104 installed on a side wall 103 of the dustproof cabinet 1, and a breathable supporting mesh plate 107 is provided in the middle of the inner cavity of the dustproof cabinet 1, the edge of the breathable supporting mesh plate 107 is fixedly connected to the side wall 103 of the dustproof cabinet 1, and an electrical device 105 is installed on the upper part of the breathable supporting mesh plate 107.

[0022] The dustproof cabinet 1 further includes an exhaust pipe 106 and a dustproof net 108 . The exhaust pipe 106 is fixedly mounted on an air outlet on the top plate of the dustproof cabinet 1 , and the dustproof net 108 is mounted inside the exhaust pipe 106 .

[0023] The dustproof net 108 includes two layers, an upper dustproof net 1083 and a lower dustproof net 1084. The upper dustproof net 1083 is surrounded by a frame 1082. The inner wall of the exhaust pipe 106 is provided with a slide groove 1081. The frame 1082 is slidably inserted into the slide groove 1081 from the socket on one side of the exhaust pipe 106. The lower dustproof net 1084 is located below the upper dustproof net 1083 and is fixedly connected to the inner wall of the exhaust pipe 106.

[0024] A funnel-shaped guide pipe 1085 is provided at the lower end of the exhaust pipe 106 , and the upper end of the guide pipe 1085 is connected to the lower end of the exhaust pipe 106 .

[0025] The heat dissipation mechanism 2 includes a controller 1087, a temperature sensor 201 and a heat dissipation fan, the heat dissipation fan includes a drive motor 202 and a heat dissipation fan 203, the controller 1087 and the temperature sensor 201 are fixedly mounted on the inner surface of the side wall 103 of the dustproof cabinet 1, the drive motor 202 is fixedly mounted on the upper part of the dustproof air inlet window 1089, the heat dissipation fan 203 is fixedly mounted on the transmission shaft at the upper end of the drive motor 202, the control end of the drive motor 202 is connected to the controller 1087, and the signal output end of the wind speed sensor 1086 is connected to the controller 1087. When the electrical The device 105 causes the temperature inside the dustproof cabinet 1 to rise. When the temperature sensor 201 detects that the temperature reaches a preset threshold, the temperature sensor 201 sends a signal to the controller 1087. The controller 1087 outputs a start signal to the drive motor 202. The transmission shaft of the drive motor 202 drives the cooling fan 203 to rotate. The cooling fan 203 rotates to blow air upward, so that external air enters the dustproof cabinet 1 through the dustproof air inlet window 1089, and then flows upward, driving the hot air into the exhaust pipe 106 through the guide pipe 1085, and finally discharged from the upper end of the exhaust pipe 106.

[0026] Compared with the dustproof air inlet window 1089, the upper dustproof net 1083 is more easily blocked by dust. This is because the dust in the factory can directly fall onto the upper dustproof net 1083. The cooling fan 203 of the utility model blows air upward, which can reduce the amount of dust deposited on the upper dustproof net 1083, extend the blocking period, and reduce maintenance workload.

[0027] The main function of the lower dustproof net 1084 is to prevent dust from entering the dustproof cabinet 1 when the upper dustproof net 1083 is cleaned.

[0028] The dustproof cabinet 1 is also provided with a blockage alarm device, which includes a wind speed sensor 1086 and an alarm light 1088. The wind speed sensor 1086 is installed on the inner wall of the lower end of the guide pipe 1085, and the signal output end of the wind speed sensor 1086 is connected to the controller 1087. The alarm light 1088 is fixedly installed on the top of the dustproof cabinet 1, and the control end of the alarm light 1088 is connected to the controller 1087.

[0029] Working principle: When the upper dustproof net 1083 or the dustproof air inlet window 1089 is blocked by dust, although the rotation speed of the driving motor 202 remains unchanged, the wind resistance becomes larger and the wind speed decreases. When the wind speed sensor 1086 detects that the gas flow rate is lower than the set threshold, the wind speed sensor 1086 sends a signal to the controller 1087, and the controller 1087 lights up the alarm light 1088, prompting the maintenance personnel to clean the upper dustproof net 1083 and the dustproof air inlet window 1089. The maintenance personnel pulls the frame 1082 forward to clean the upper dustproof net 1083.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A power distribution cabinet suitable for dusty environments, characterized in that: The invention comprises a dustproof cabinet (1) and a heat dissipation mechanism (2), wherein a dustproof air inlet window (1089) is installed in the middle of a bottom plate (101) of the dustproof cabinet (1), and fixing feet (102) are installed at the lower parts of the four corners of the bottom plate (101); an exhaust pipe (106) is installed on the top of the dustproof cabinet (1), and a dustproof net (108) is arranged in the exhaust pipe (106); a breathable support mesh plate (107) is arranged in the middle of the inner cavity of the dustproof cabinet (1), and the breathable support mesh plate (107) is The edge is fixedly connected to the side wall (103) of the dustproof cabinet (1), and an electrical device (105) is installed on the upper part of the air-permeable support mesh plate (107); the heat dissipation mechanism (2) comprises a controller (1087), a temperature sensor (201) and a heat dissipation fan, the temperature sensor (201) is installed inside the dustproof cabinet (1), the heat dissipation fan is installed on the upper part of the dustproof air inlet window (1089), and the temperature sensor (201) and the heat dissipation fan are connected to the controller (1087).

2. A power distribution cabinet suitable for dusty environments according to claim 1, characterized in that: The dustproof cabinet (1) is further provided with a blockage alarm device, the blockage alarm device comprising a wind speed sensor (1086) and an alarm light (1088); a funnel-shaped guide pipe (1085) is connected to the lower end of the exhaust pipe (106); the wind speed sensor (1086) is mounted on the inner wall of the lower end of the guide pipe (1085); a signal output end of the wind speed sensor (1086) is connected to a controller (1087); the alarm light (1088) is fixed to the top of the dustproof cabinet (1); and a control end of the alarm light (1088) is connected to the controller (1087).

3. A power distribution cabinet suitable for dusty environments according to claim 1 or 2, characterized in that: The dustproof net (108) is provided with two layers, namely an upper dustproof net (1083) and a lower dustproof net (1084); the upper dustproof net (1083) is provided with a frame (1082) around its periphery; a slide groove (1081) is provided on the inner wall of the exhaust pipe (106); the frame (1082) is slidably inserted into the slide groove (1081) from a socket on one side of the exhaust pipe (106); the lower dustproof net (1084) is located below the upper dustproof net (1083) and is fixedly connected to the inner wall of the exhaust pipe (106).

4. A power distribution cabinet suitable for dusty environments according to claim 3, characterized in that: The heat dissipation fan comprises a drive motor (202) and a heat dissipation fan (203); the drive motor (202) is fixedly mounted on the upper part of the dustproof air inlet window (1089); the heat dissipation fan (203) is fixedly mounted on the transmission shaft at the upper end of the drive motor (202); and the control end of the drive motor (202) is connected to the controller (1087).

5. A power distribution cabinet suitable for dusty environments according to claim 4, characterized in that: A movable door (104) is installed on a side wall (103) of the dustproof cabinet (1).

6. A power distribution cabinet suitable for dusty environments according to claim 5, characterized in that: The air supply direction of the heat dissipation fan (203) is upward.

Images