Heat dissipation air duct structure of inflatable electrical switch cabinet

Abstract

The utility model relates to the field of electrical switch cabinets, in particular to a heat dissipation air duct structure of an inflatable electrical switch cabinet, which comprises a cabinet body and a heat dissipation air pipe, a cabinet door is mounted on the front end face of the cabinet body, a ventilation fan is arranged on the side of the left end face of the cabinet body, and a cooling box is fixedly mounted at the upper end of the ventilation fan. The upper end of the cooling box is connected with the lower end of the heat dissipation air pipe; according to the utility model, the ventilation fan is used for driving air flow to circulate, external air is extracted and sent into the cooling box, the cold end of the semiconductor refrigeration sheet is attached to the heat exchange sheet, so that the heat exchange sheet is in contact with the entering air to realize heat exchange and cooling, and the cooled air is sent out by the heat dissipation air pipe and can be uniformly sent out in the cabinet body through the plurality of air supply pipes; ventilation and cooling of different areas in the electric appliance switch cabinet are facilitated, the fed air is cold air, the heat dissipation effect is guaranteed, the temperature sensor senses the temperature in the cabinet body and controls whether the semiconductor chilling plate is started or not, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to the field of electrical switch cabinets, in particular to a heat dissipation air duct structure of an inflatable electrical switch cabinet. Background Art

[0002] Fully sealed and fully insulated ring network switchgear (referred to as inflatable cabinet) is a new generation of miniaturized modular switchgear, which is widely used in industrial and civil ring networks and terminal power supply, especially suitable for small secondary distribution stations, switchgear, industrial and mining enterprises, airports, railways, commercial areas, high-rise buildings, highways, subways, tunnels and other fields. However, different control modules and electrical components need to be installed in the inflatable electrical switchgear, which leads to a large amount of heat dissipation during work. However, in daily use, the cabinet is mostly in a closed state, so a heat dissipation duct structure will be set to realize air exchange inside and outside the cabinet to keep the temperature inside and outside consistent.

[0003] The heat dissipation duct structure of the existing inflatable electrical switch cabinet is generally arranged at the bottom or the top, so that the airflow forms a bottom-in and top-out, or top-in and bottom-out, forming an air circulation. However, in order to divide different areas inside the electrical switch cabinet, partitions are set to block the airflow, affecting the air circulation effect, resulting in relatively uneven heat dissipation. At the same time, although the circulation of air flow can take away heat, it is greatly affected by the ambient temperature. When the external temperature of the electrical switch cabinet is high, the temperature inside the electrical switch cabinet cannot be effectively cooled.

[0004] Therefore, a partition is set in the heat dissipation duct structure of the above-mentioned existing inflatable electrical switch cabinet to block the airflow, affect the air circulation effect, and cause the problem of relatively uneven heat dissipation. Therefore, a heat dissipation duct structure of an inflatable electrical switch cabinet can be designed to uniformly supply air to different areas by multiple air supply pipes, thereby ensuring the heat dissipation effect. Utility Model Content

[0005] In order to overcome the problem that the heat dissipation air duct structure of the existing inflatable electrical switch cabinet is provided with a partition, the airflow is blocked, the air circulation effect is affected, and the heat dissipation is relatively uneven.

[0006] The technical solution of the utility model is: a heat dissipation air duct structure of an inflatable electrical switch cabinet, comprising a cabinet body and a heat dissipation air duct, a cabinet door is installed on the front end surface of the cabinet body, a ventilation fan is arranged on the side of the left end surface of the cabinet body, a cooling box is fixedly installed on the upper end of the ventilation fan, the upper end of the cooling box is connected with the lower end of the heat dissipation air duct, the heat dissipation air duct is fixedly connected with the left end of the cabinet body, a mounting seat is installed on the left end of the cooling box, a heat dissipation fin is arranged on the left end surface of the mounting seat, a heat dissipation fan is arranged on the left end of the heat dissipation fin, a partition is arranged inside the cabinet body, an air supply duct is fixedly installed on the lower end of the partition, the same air supply duct is fixedly installed on the top of the inner side of the cabinet body, a temperature sensor is arranged on the inner wall of the cabinet body, and a ventilation slot is opened on the right end surface of the cabinet body.

[0007] Preferably, the cabinet door and the cabinet body are rotatably connected by hinges, and the surface of the cabinet door is provided with transparent glass to facilitate personnel to check the internal condition of the electrical switch cabinet.

[0008] Preferably, a dustproof net is provided on the left end face of the ventilation fan, and the upper end of the ventilation fan and the lower end of the cooling box are connected through a through slot to achieve dustproof protection.

[0009] Preferably, heat exchange fins are provided on the inner side of the cooling box, and the heat exchange fins are distributed at equal intervals. Through holes are provided on the surfaces of the heat exchange fins to facilitate contact with the incoming air to achieve heat exchange and cooling.

[0010] Preferably, the lower end of the heat dissipation duct is connected to the upper end of the cooling box, a pull-out box is slidably installed on the left side of the surface of the heat dissipation duct, a cover plate is fixedly installed on the left end of the pull-out box, a bagged desiccant is arranged on the inside of the pull-out box, and a hole groove is opened at the bottom of the pull-out box to facilitate drying of the blown-in air flow and prevent excessive humidity inside the cabinet.

[0011] Preferably, a semiconductor refrigeration fin is installed on the inner side of the mounting seat, the right end of the heat dissipation fin and the left end face of the semiconductor refrigeration fin are fitted and connected, the heat dissipation fin and the mounting seat are fixedly connected, the left end of the heat exchange fin and the right end face of the semiconductor refrigeration fin are fitted and connected, and the heat exchange fin and the right end of the mounting seat are fixedly connected, so as to achieve cooling of the circulating airflow and improve the heat dissipation effect.

[0012] Preferably, two partitions are provided, and the air supply pipe is matched with the partitions. An air outlet is provided on the front end surface of the air supply pipe to facilitate uniform air supply in different areas, thereby ensuring uniform heat dissipation.

[0013] Beneficial effects of the utility model:

[0014] The heat dissipation duct structure of the inflatable electrical switch cabinet utilizes a ventilation fan to drive air circulation, draws in external air and delivers it into a cooling box, and the cold end of the semiconductor refrigeration plate fits the heat exchange plate so that the heat exchange plate contacts the incoming air to achieve heat exchange and cooling. The cooled air is delivered by the heat dissipation duct and can be evenly delivered inside the cabinet through multiple air supply ducts, which is convenient for ventilation and cooling of different areas inside the electrical switch cabinet. The delivered air is cold air, which ensures the heat dissipation effect. At the same time, when the cold air is delivered, the air can be discharged through the ventilation slots to achieve the exchange of internal and external air, and the temperature sensor senses the temperature inside the cabinet, so that the semiconductor refrigeration plate can be controlled to be turned on according to the internal temperature of the cabinet, thereby achieving energy saving and environmental protection. In daily ventilation, the inside of the cabinet can maintain a suitable temperature, that is, the semiconductor refrigeration plate is not turned on. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure shows the overall structure of the heat dissipation duct structure of the inflatable electrical switch cabinet of the utility model;

[0016] Figure 2 Shown is a schematic diagram of the internal structure of the heat dissipation duct structure of the inflatable electrical switch cabinet of the utility model;

[0017] Figure 3 Shown is a schematic diagram of the cooling box structure of the heat dissipation duct structure of the inflatable electrical switch cabinet of the utility model;

[0018] Figure 4 Shown is a schematic diagram of the pull-out box structure of the heat dissipation duct structure of the inflatable electrical switch cabinet of the present utility model.

[0019] Explanation of the accompanying drawings: 1. cabinet; 2. cabinet door; 3. ventilation fan; 4. cooling box; 41. heat exchange plate; 5. heat dissipation air duct; 51. pull-out box; 6. mounting seat; 61. semiconductor refrigeration plate; 7. heat dissipation fin; 8. heat dissipation fan; 9. partition; 10. air supply duct; 11. temperature sensor; 12. ventilation slot. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-Figure 4The utility model provides an embodiment: a heat dissipation duct structure of an inflatable electrical switch cabinet, comprising a cabinet body 1, and also comprising a heat dissipation duct 5. A cabinet door 2 is installed on the front end surface of the cabinet body 1, and the cabinet door 2 and the cabinet body 1 are rotatably connected by a hinge. The surface of the cabinet door 2 is provided with transparent glass. A ventilation fan 3 is provided on the side of the left end surface of the cabinet body 1. A cooling box 4 is fixedly installed on the upper end of the ventilation fan 3. The upper end of the cooling box 4 is connected to the lower end of the heat dissipation duct 5. The heat dissipation duct 5 is fixedly connected to the left end of the cabinet body 1. A mounting seat 6 is installed on the left end of the cooling box 4. The mounting seat The left end face of cabinet 6 is provided with heat dissipation fins 7, the left end of heat dissipation fins 7 is provided with heat dissipation fan 8, a partition 9 is provided inside cabinet 1, an air supply pipe 10 is fixedly installed at the lower end of partition 9, the top of the inner side of cabinet 1 is fixedly installed with the same air supply pipe 10, a temperature sensor 11 is provided on the inner wall of cabinet 1, a ventilation slot 12 is provided on the right end face of cabinet 1, the ventilation fan 3 is used to drive the air circulation, the air supply pipe 10 evenly supplies air in different areas, and the ventilation slot 12 exhausts air synchronously, so as to realize the exchange of internal and external air and ensure the uniform effect of heat dissipation and ventilation structure.

[0022] Please refer to 1. Figure 2 and Figure 3 In this embodiment, a dustproof net is provided on the left end face of the ventilation fan 3, the upper end of the ventilation fan 3 and the lower end of the cooling box 4 are connected through a through groove, and a heat exchange plate 41 is provided on the inner side of the cooling box 4. The heat exchange plates 41 are distributed at equal intervals, and the surface of the heat exchange plates 41 is provided with through holes. The ventilation fan 3 drives the air circulation and sends the airflow into the cooling box 4, and contacts with the heat exchange plates 41, which is convenient for heat exchange and cooling the air temperature. When the external temperature is high, the heat dissipation effect is guaranteed.

[0023] See also Figure 1 , Figure 2 and Figure 4 In this embodiment, the lower end of the heat dissipation duct 5 is connected to the upper end of the cooling box 4, a pull-out box 51 is slidably installed on the left side of the surface of the heat dissipation duct 5, a cover plate is fixedly installed on the left end of the pull-out box 51, a bagged desiccant is arranged on the inner side of the pull-out box 51, and a hole groove is opened at the bottom of the pull-out box 51. When the air enters the heat dissipation duct 5, it passes through the pull-out box 51, and the bagged desiccant filters and adsorbs the air entering the school to achieve drying treatment and reduce air humidity.

[0024] See also Figure 1 , Figure 2 and Figure 3In this embodiment, a semiconductor refrigeration sheet 61 is installed on the inner side of the mounting seat 6, the right end of the heat dissipation fin 7 and the left end face of the semiconductor refrigeration sheet 61 are fitted and connected, the heat dissipation fin 7 and the mounting seat 6 are fixedly connected, the left end of the heat exchange sheet 41 and the right end face of the semiconductor refrigeration sheet 61 are fitted and connected, the heat exchange sheet 41 and the right end of the mounting seat 6 are fixedly connected, two partitions 9 are provided, the air supply pipe 10 and the partition 9 are adapted, and an air outlet is opened on the front end face of the air supply pipe 10. The fit between the cold end of the semiconductor refrigeration sheet 61 and the heat exchange sheet 41 is utilized to facilitate heat conduction, thereby heat exchange and cooling the passing air, and the air supply pipe 10 evenly delivers it into different areas of the cabinet 1, and delivers cold air into the cabinet 1 to improve the heat dissipation effect.

[0025] When working, the ventilation fan 3 is used to drive the air circulation and send the air flow into the cooling box 4. The cold end of the semiconductor refrigeration plate 61 and the heat exchange plate 41 are fitted together to facilitate heat conduction, thereby exchanging heat and cooling the passing air. The cooled air then enters the heat dissipation air duct 5 and passes through the pull-out box 51. The bagged desiccant filters and adsorbs the incoming air to achieve drying treatment and reduce air humidity. Finally, the air is sent out from the inside of the cabinet 1 through multiple air supply pipes 10, so as to be evenly delivered to different areas of the cabinet 1, and cold air is delivered into the cabinet 1 to improve the heat dissipation effect.

[0026] Through the above steps, the ventilation fan 3 is used to drive the air circulation, the air supply pipe 10 supplies air evenly in different areas, and the ventilation slots 12 exhaust air synchronously, so as to realize the exchange of internal and external air, and ensure the uniform effect of the heat dissipation and ventilation structure, so as to solve the problem that the heat dissipation duct structure of the existing inflatable electrical switch cabinet will be provided with partitions, which will block the airflow, affect the air circulation effect, and cause relatively uneven heat dissipation.

Claims

1. A heat dissipation duct structure of an inflatable electrical switch cabinet, comprising a cabinet body (1), characterized in that: The cabinet (1) further comprises a heat dissipation duct (5), a cabinet door (2) being installed on the front end surface of the cabinet (1), a ventilation fan (3) being arranged on the side of the left end surface of the cabinet (1), a cooling box (4) being fixedly installed on the upper end of the ventilation fan (3), the upper end of the cooling box (4) being connected to the lower end of the heat dissipation duct (5), the heat dissipation duct (5) being fixedly connected to the left end of the cabinet (1), a mounting seat (6) being installed on the left end of the cooling box (4), a heat dissipation fin (7) being arranged on the left end surface of the mounting seat (6), a heat dissipation fan (8) being arranged on the left end of the heat dissipation fin (7), a partition (9) being arranged inside the cabinet (1), an air supply duct (10) being fixedly installed on the lower end of the partition (9), a same air supply duct (10) being fixedly installed on the top of the inner side of the cabinet (1), a temperature sensor (11) being arranged on the inner wall of the cabinet (1), and a ventilation slot (12) being opened on the right end surface of the cabinet (1).

2. The heat dissipation duct structure of the inflatable electrical switch cabinet according to claim 1, characterized in that: The cabinet door (2) and the cabinet body (1) are rotatably connected via a hinge, and a surface of the cabinet door (2) is provided with transparent glass.

3. The heat dissipation duct structure of the inflatable electrical switch cabinet according to claim 1, characterized in that: A dust screen is provided on the left end face of the ventilation fan (3), and the upper end of the ventilation fan (3) and the lower end of the cooling box (4) are connected via a through slot.

4. The heat dissipation duct structure of the inflatable electrical switch cabinet according to claim 1, characterized in that: Heat exchange fins (41) are arranged on the inner side of the cooling box (4); the heat exchange fins (41) are distributed at equal intervals, and through holes are arranged on the surfaces of the heat exchange fins (41).

5. The heat dissipation duct structure of the inflatable electrical switch cabinet according to claim 1, characterized in that: The lower end of the heat dissipation duct (5) is connected to the upper end of the cooling box (4); a pull-out box (51) is slidably mounted on the left side of the surface of the heat dissipation duct (5); a cover plate is fixedly mounted on the left end of the pull-out box (51); a bagged desiccant is arranged on the inner side of the pull-out box (51); and a hole groove is provided at the bottom of the pull-out box (51).

6. The heat dissipation duct structure of the inflatable electrical switch cabinet according to claim 4, characterized in that: A semiconductor cooling plate (61) is installed on the inner side of the mounting seat (6); the right end of the heat dissipation fin (7) and the left end surface of the semiconductor cooling plate (61) are fitted and connected; the heat dissipation fin (7) and the mounting seat (6) are fixedly connected; the left end of the heat exchange plate (41) and the right end surface of the semiconductor cooling plate (61) are fitted and connected; and the heat exchange plate (41) and the right end of the mounting seat (6) are fixedly connected.

7. The heat dissipation duct structure of the inflatable electrical switch cabinet according to claim 1, characterized in that: Two partitions (9) are provided, the air supply pipe (10) and the partition (9) are adapted to each other, and an air outlet is provided on the front end surface of the air supply pipe (10).

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