Switch cabinet temperature control structure based on composite heat dissipation channel

Abstract

The invention provides a switch cabinet temperature control structure based on a composite heat dissipation channel, and relates to the technical field of switch cabinets. The switch cabinet temperature control structure based on the composite heat dissipation channel comprises a switch cabinet body, the inner bottom of the switch cabinet body is fixedly connected with a connection supporting seat, and the upper surface of the connection supporting seat is fixedly connected with an electronic device module unit. According to the cooling device, when a first rotating disc rotates, a first pull rod is pulled by a first linkage rod to reciprocate, a first piston is pulled by the first pull rod to reciprocate, and when the first piston moves in the direction close to the first rotating disc, cooling liquid in a cooling liquid box enters a first piston cylinder through a second liquid conveying pipe; when a first piston moves in the direction away from a first rotating disc, cooling liquid in a first piston cylinder enters a third liquid conveying pipe, then enters four heat dissipation channel pipes and finally enters a cooling liquid box body through a first liquid conveying pipe, and the front side and the rear side of an electric device are cooled synchronously.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of switch cabinets, in particular to a switch cabinet temperature control structure based on a composite heat dissipation channel. BACKGROUND

[0002] A switch cabinet is an electrical device. External lines first enter a main control switch in the cabinet, then enter a sub-control switch, and each branch is set according to needs, such as instruments, automatic controls, motor magnetic switches, various AC contactors and the like. Some switch cabinets have high-voltage and low-voltage rooms, high-voltage buses, such as power plants, and some have low-cycle load shedding for the protection of main equipment. The switch cabinet is used for opening and closing, controlling and protecting electrical equipment in the process of power generation, power transmission, power distribution and electric energy conversion. Various circuit control devices are installed in the switch cabinet. The components in the switch cabinet mainly include circuit breakers, disconnectors, load switches, operating mechanisms, transformers and various protection devices.

[0003] Patent Publication No. CN223124436U provides a low-voltage switch cabinet with a heat dissipation function, relating to the field of low-voltage switch cabinets. A low-voltage switch cabinet with a heat dissipation function includes a box body, a bottom plate and a partition plate. The bottom plate is fixedly installed at the bottom of the box body, and the partition plate is fixedly installed on the inner wall of the box body. The interior of the box body is provided with a dust removal and heat dissipation mechanism. The dust removal and heat dissipation mechanism includes a heat dissipation assembly and a dust removal assembly. The heat dissipation assembly includes an exhaust fan for heat dissipation. The dust removal assembly includes a filter screen for blocking and collecting. The bottom of the bottom plate is provided with a walking fixing mechanism. The walking fixing mechanism includes four universal wheels for walking. By starting the heat dissipation assembly, the exhaust fan is driven to rotate, allowing external air to blow into the interior of the box body, keeping the equipment within an appropriate working temperature range and ensuring stable operation of the equipment. At the same time of heat dissipation, the wind passes through the filter screen in the dust removal assembly, effectively blocking and purifying impurities in the wind.

[0004] However, the conventional switch cabinet electrical devices are generally located at the rear side of the cabinet body or even in contact with the rear side of the cabinet body. The heat dissipation system is usually in front of the electrical devices. When the overall temperature of the electrical devices rises, not only the front surface but also the rear surface will rise in temperature. The rear side of the electrical devices is in a narrow space and cannot be effectively cooled, resulting in difficulty in effectively reducing the overall temperature of the electrical devices. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the application provides a switch cabinet temperature control structure based on a composite heat dissipation channel, which solves the problem that the rear side of the electrical devices is in a narrow space and cannot be effectively cooled, resulting in difficulty in effectively reducing the overall temperature of the electrical devices.

[0007] (II) Technical solutions

[0008] In order to achieve the above object, the application is implemented by the following technical scheme: a switch cabinet temperature control structure based on a composite heat dissipation channel, comprising a switch cabinet body, a connecting support seat is fixedly connected to the inner bottom of the switch cabinet body, an electronic device module unit is fixedly connected to the upper surface of the connecting support seat, four heat dissipation channel pipes are fixedly connected to the inside of the switch cabinet body, two first main pipes are fixedly connected between the four heat dissipation channel pipes, a second main pipe is fixedly connected between the two first main pipes, a first piston cylinder and a second piston cylinder are fixedly connected to the back of the switch cabinet body, a cooling liquid circulation assembly is connected to the first piston cylinder, an air circulation assembly is connected to the second piston cylinder, a side mounting plate is fixedly connected to the side wall of the switch cabinet body, a first rotating shaft and a second rotating shaft are rotatably connected to the side wall of the side mounting plate, a belt pulley is fixedly connected to the outer surface of the first rotating shaft and the second rotating shaft, a belt is transmissionally connected between the two belt pulleys, a first rotating disc is fixedly connected to the end of the first rotating shaft, a first driving assembly is connected between the first rotating disc and the first piston cylinder, a second rotating disc is fixedly connected to the end of the second rotating shaft, a second driving assembly is connected between the second rotating disc and the second piston cylinder, a servo motor is fixedly connected to the front side of the side mounting plate, and the output shaft of the servo motor is fixedly connected with the first rotating shaft.

[0009] Preferably, a cooling liquid tank is fixedly connected to the back of the cooling liquid circulation assembly, a first liquid conveying pipe is fixedly connected to the top of the cooling liquid tank, the end of the first liquid conveying pipe away from the cooling liquid tank extends into the inside of the switch cabinet body and is fixedly connected with one of the heat dissipation channel pipes, a second liquid conveying pipe is fixedly connected to the bottom of the cooling liquid tank, the end of the second liquid conveying pipe away from the cooling liquid tank is fixedly connected with the first piston cylinder, a third liquid conveying pipe is fixedly connected to one side of the first piston cylinder, and the end of the third liquid conveying pipe away from the first piston cylinder extends into the inside of the switch cabinet body and is fixedly connected with the second main pipe.

[0010] Preferably, a plurality of heat dissipation fins are fixedly connected to the outer side wall of the cooling liquid tank, the heat dissipation fins extend into the inside of the cooling liquid tank, and a first one-way valve is mounted on the outer surface of the second liquid conveying pipe and the third liquid conveying pipe.

[0011] Preferably, the air circulation assembly comprises an air inlet pipe fixedly connected to the side wall of the second piston cylinder, a first air inlet pipe is fixedly connected to the bottom of the second piston cylinder, the end of the first air inlet pipe away from the second piston cylinder extends into the inside of the switch cabinet body, a second air inlet pipe is fixedly connected to the outer surface of the first air inlet pipe, the end of the second air inlet pipe away from the first air inlet pipe penetrates through the connecting support seat and extends to the front thereof, and a second one-way valve is mounted on the air inlet pipe and the first air inlet pipe.

[0012] Preferably, the first driving assembly comprises a first linkage rod rotationally connected at an eccentric position of the outer surface of the first rotating disc, one end of the first linkage rod away from the first rotating disc is rotationally connected with a first pulling rod, one end of the first pulling rod away from the first linkage rod extends to the inside of the first piston cylinder and is fixedly connected with a first piston, the first piston is in sliding connection with the inner wall of the first piston cylinder, when the first rotating disc rotates, the first pulling rod is pulled to reciprocate by the first linkage rod, the first piston is pulled to reciprocate by the first pulling rod, when the first piston moves in the direction close to the first rotating disc, the cooling liquid inside the cooling liquid tank enters the inside of the first piston cylinder through the second liquid conveying pipe, when the first piston moves in the direction away from the first rotating disc, the cooling liquid inside the first piston cylinder enters the inside of the third liquid conveying pipe and then enters the four heat dissipation channel pipes, and finally enters the inside of the cooling liquid tank through the first liquid conveying pipe.

[0013] Preferably, the second driving assembly comprises a second linkage rod rotationally connected at an eccentric position of the outer surface of the second rotating disc, one end of the second linkage rod away from the second rotating disc is rotationally connected with a second pulling rod, one end of the second pulling rod away from the second linkage rod extends to the inside of the second piston cylinder and is fixedly connected with a second piston, the second piston is in sliding connection with the inner wall of the second piston cylinder, when the second rotating disc rotates, the second pulling rod is pulled to reciprocate by the second linkage rod, the second piston is pulled to reciprocate by the second pulling rod, when the second piston moves in the direction close to the second rotating disc, the air outside enters the inside of the second piston cylinder through the air inlet pipe, when the second piston moves in the direction away from the second rotating disc, the air inside the second piston cylinder enters the inside of the first air inlet pipe and then enters the second air inlet pipe, so that the cold air enters the front and rear sides of the electronic device module unit respectively.

[0014] Preferably, the side wall of the switch cabinet body is fixedly connected with two exhaust pipes, the two exhaust pipes are located at the front and rear sides of the electronic device module unit respectively, and a third one-way valve is installed on the exhaust pipe.

[0015] Preferably, of the four heat dissipation channel pipes, three are located at the front side of the electronic device module unit, and one is located at the rear side of the electronic device module unit, and the bottom of the connecting support seat is provided with an avoiding opening matched with the first main pipe.

[0016] (Three) beneficial effects

[0017] The application provides a switch cabinet temperature control structure based on a composite heat dissipation channel.

[0018] 1. The first rotating disc rotates, the first linkage rod pulls the first pull rod to reciprocate, the first pull rod pulls the first piston to reciprocate, when the first piston moves to the direction close to the first rotating disc, the cooling liquid in the cooling liquid tank body enters the inside of the first piston cylinder through the second liquid pipe, when the first piston moves to the direction away from the first rotating disc, the cooling liquid in the first piston cylinder enters the inside of the third liquid pipe, then enters the four heat dissipation channel pipes, and finally enters the inside of the cooling liquid tank body through the first liquid pipe, so that the front and back sides of the electrical device are cooled synchronously.

[0019] 2. The second rotating disc rotates, the second linkage rod pulls the second pull rod to reciprocate, the second pull rod pulls the second piston to reciprocate, when the second piston moves to the direction close to the second rotating disc, the outside air enters the inside of the second piston cylinder through the air inlet pipe, when the second piston moves to the direction away from the second rotating disc, the air in the second piston cylinder enters the inside of the first air inlet pipe, then enters the second air inlet pipe through the first air inlet pipe, so that the cold air enters the front and back sides of the electronic device module unit, the hot air in the switch cabinet body is discharged through the two exhaust pipes, the front and back sides of the electrical device are ventilated synchronously, and the temperature of the front and back sides of the electrical device is reduced. DRAWINGS

[0020] Figure 1 A first perspective three-dimensional structure schematic view of a switch cabinet temperature control structure based on a composite heat dissipation channel is provided for the application.

[0021] Figure 2 A second perspective three-dimensional structure schematic view of a switch cabinet temperature control structure based on a composite heat dissipation channel is provided for the application.

[0022] Figure 3 A third perspective three-dimensional structure schematic view of a switch cabinet temperature control structure based on a composite heat dissipation channel is provided for the application.

[0023] Figure 4 A front view of a switch cabinet temperature control structure based on a composite heat dissipation channel is provided for the application.

[0024] Figure 5 A side view of a switch cabinet temperature control structure based on a composite heat dissipation channel is provided for the application.

[0025] Figure 6 A first perspective view of a heat dissipation channel pipe of a switch cabinet temperature control structure based on a composite heat dissipation channel is provided for the application.

[0026] Figure 7 A second perspective view of a heat dissipation channel pipe of a switch cabinet temperature control structure based on a composite heat dissipation channel is provided for the application.

[0027] Wherein, 1, switch cabinet body; 2, connecting support seat; 3, electronic device module unit; 4, heat dissipation channel pipe; 5, first general pipe; 6, second general pipe; 7, cooling liquid tank; 8, first liquid conveying pipe; 9, heat dissipation fin; 10, first piston cylinder; 11, second liquid conveying pipe; 12, third liquid conveying pipe; 13, second piston cylinder; 14, air inlet pipe; 15, first air inlet pipe; 16, second air inlet pipe; 17, side mounting plate; 18, first rotating shaft; 19, second rotating shaft; 20, servo motor; 21, first rotating disc; 22, first linkage rod; 23, first pulling rod; 24, second rotating disc; 25, second linkage rod; 26, second pulling rod; 27, air outlet pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] Embodiment:

[0030] As Figures 1-7As shown, the embodiment of the present application provides a switch cabinet temperature control structure based on composite heat dissipation channel, including switch cabinet body 1, two temperature sensors are installed in the inside of switch cabinet body 1, the inner bottom of switch cabinet body 1 is fixedly connected with connecting support seat 2, the upper surface of connecting support seat 2 is fixedly connected with electronic device module unit 3, two temperature sensors are respectively located on the front and rear sides of electronic device module unit 3, the outside of switch cabinet body 1 is installed with a controller, the side wall of switch cabinet body 1 is fixedly connected with two exhaust pipes 27, two exhaust pipes 27 are respectively located on the front and rear sides of electronic device module unit 3, third one-way valve is installed on exhaust pipe 27, the inside of switch cabinet body 1 is fixedly connected with four heat dissipation channel pipes 4, among four heat dissipation channel pipes 4, three are located on the front side of electronic device module unit 3, one is located on the rear side of electronic device module unit 3, the bottom of connecting support seat 2 is provided with two avoiding openings matched with first main pipe 5, two first main pipes 5 are fixedly connected with second main pipe 6, the back of cooling liquid circulation assembly is fixedly connected with cooling liquid tank 7, the top of cooling liquid tank 7 is fixedly connected with first liquid conveying pipe 8, the end of first liquid conveying pipe 8 away from cooling liquid tank 7 extends to the inside of switch cabinet body 1 and is fixedly connected with one of heat dissipation channel pipes 4, the bottom of cooling liquid tank 7 is fixedly connected with second liquid conveying pipe 11, the end of second liquid conveying pipe 11 away from cooling liquid tank 7 is fixedly connected with first piston cylinder 10, one side of first piston cylinder 10 is fixedly connected with third liquid conveying pipe 12, the end of third liquid conveying pipe 12 away from first piston cylinder 10 extends to the inside of switch cabinet body 1 and is fixedly connected with second main pipe 6, the outside wall of cooling liquid tank 7 is fixedly connected with a plurality of heat dissipation fins 9, heat dissipation fins 9 extend to the inside of cooling liquid tank 7, the outer surfaces of second liquid conveying pipe 11 and third liquid conveying pipe 12 are both installed with first one-way valve;

[0031] The second piston cylinder 13 is connected with an air circulation assembly, which includes a gas inlet pipe 14 fixedly connected to the side wall of the second piston cylinder 13, a first gas inlet pipe 15 fixedly connected to the bottom of the second piston cylinder 13, the end of the first gas inlet pipe 15 away from the second piston cylinder 13 extends to the inside of the switch cabinet body 1, a second gas inlet pipe 16 fixedly connected to the outer surface of the first gas inlet pipe 15, the end of the second gas inlet pipe 16 away from the first gas inlet pipe 15 penetrates through the connecting support seat 2 and extends to the front thereof, and both the gas inlet pipe 14 and the first gas inlet pipe 15 are installed with a second one-way valve;

[0032] The side wall of the switch cabinet body 1 is fixedly connected with a side mounting plate 17, the side wall of the side mounting plate 17 is rotatably connected with a first rotating shaft 18 and a second rotating shaft 19, the outer surfaces of the first rotating shaft 18 and the second rotating shaft 19 are fixedly connected with belt pulleys, a belt is transmissionally connected between the two belt pulleys, the end of the first rotating shaft 18 is fixedly connected with a first rotating disc 21, a first driving assembly is connected between the first rotating disc 21 and the first piston cylinder 10, the first driving assembly comprises a first linkage rod 22 which is rotatably connected at the eccentric position of the outer surface of the first rotating disc 21, the end of the first linkage rod 22 away from the first rotating disc 21 is rotatably connected with a first pulling rod 23, the end of the first pulling rod 23 away from the first linkage rod 22 extends to the inside of the first piston cylinder 10 and is fixedly connected with a first piston, the first piston is slidably connected with the inner wall of the first piston cylinder 10, when the first rotating disc 21 rotates, the first pulling rod 23 is reciprocally moved by the first linkage rod 22, the first piston is reciprocally moved by the first pulling rod 23, when the first piston moves towards the first rotating disc 21, the cooling liquid in the cooling liquid tank 7 enters the inside of the first piston cylinder 10 through the second liquid conveying pipe 11, when the first piston moves away from the first rotating disc 21, the cooling liquid in the first piston cylinder 10 enters the inside of the third liquid conveying pipe 12 and then enters the four heat dissipation channel pipes 4, and finally enters the inside of the cooling liquid tank 7 through the first liquid conveying pipe 8.

[0033] The end of the second rotating shaft 19 is fixedly connected with a second rotating disc 24, a second driving assembly is connected between the second rotating disc 24 and the second piston cylinder 13, the front side of the side mounting plate 17 is fixedly connected with a servo motor 20, the output shaft of the servo motor 20 is fixedly connected with the first rotating shaft 18, the second driving assembly comprises a second linkage rod 25 which is rotatably connected at the eccentric position of the outer surface of the second rotating disc 24, the end of the second linkage rod 25 away from the second rotating disc 24 is rotatably connected with a second pulling rod 26, the end of the second pulling rod 26 away from the second linkage rod 25 extends to the inside of the second piston cylinder 13 and is fixedly connected with a second piston, the second piston is slidably connected with the inner wall of the second piston cylinder 13, when the second rotating disc 24 rotates, the second pulling rod 26 is reciprocally moved by the second linkage rod 25, the second piston is reciprocally moved by the second pulling rod 26, when the second piston moves towards the second rotating disc 24, the air outside enters the inside of the second piston cylinder 13 through the air inlet pipe 14, when the second piston moves away from the second rotating disc 24, the air in the second piston cylinder 13 enters the inside of the first air inlet pipe 15 and then enters the second air inlet pipe 16, so that the cold air enters the front and rear sides of the electronic device module unit 3, and the hot air in the switch cabinet body 1 is discharged through the two air outlet pipes 27.

[0034] Working principle:

[0035] When the temperature sensor detects that the temperature inside the switch cabinet body 1 rises, the controller controls the servo motor 20 to start, the servo motor 20 rotates with the first rotating shaft 18, the first rotating shaft 18 rotates with the second rotating shaft 19 through the belt, so that the first rotating disc 21 rotates with the second rotating disc 24, when the first rotating disc 21 rotates, the first pulling rod 23 reciprocates by the first linkage rod 22, the first pulling rod 23 reciprocates by the first piston, when the first piston moves towards the first rotating disc 21, the cooling liquid in the cooling liquid tank 7 enters the inside of the first piston cylinder 10 through the second liquid pipe 11, when the first piston moves away from the first rotating disc 21, the cooling liquid in the first piston cylinder 10 enters the inside of the third liquid pipe 12, and then enters the four heat dissipation channel pipes 4, and finally enters the inside of the cooling liquid tank 7 through the first liquid pipe 8.

[0036] When the second rotating disc 24 rotates, the second linkage rod 25 reciprocates by the second pulling rod 26, the second pulling rod 26 reciprocates by the second piston, when the second piston moves towards the second rotating disc 24, the outside air enters the inside of the second piston cylinder 13 through the air inlet pipe 14, when the second piston moves away from the second rotating disc 24, the air in the second piston cylinder 13 enters the inside of the first air inlet pipe 15, and then enters the second air inlet pipe 16, so that the cold air enters the front and rear sides of the electronic device module unit 3 respectively, and the hot air in the switch cabinet body 1 is discharged through the two exhaust pipes 27.

[0037] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0038] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A temperature control structure for a switchgear based on a composite heat dissipation channel, comprising a switchgear body (1), characterized in that: A connecting support base (2) is fixedly connected to the bottom of the switch cabinet (1). An electronic device module unit (3) is fixedly connected to the upper surface of the connecting support base (2). Four heat dissipation channel pipes (4) are fixedly connected inside the switch cabinet (1). Two first main pipes (5) are fixedly connected between the four heat dissipation channel pipes (4). A second main pipe (6) is fixedly connected between the two first main pipes (5). A first piston cylinder (10) and a second piston cylinder (13) are fixedly connected to the back of the switch cabinet (1). A coolant circulation assembly is connected to the first piston cylinder (10), and an air circulation assembly is connected to the second piston cylinder (13). A side mounting plate (17) is fixedly connected to the side wall of the switch cabinet (1). A first rotating shaft (18) and a second rotating shaft (19) are rotatably connected to the side wall of 7). The outer surfaces of the first rotating shaft (18) and the second rotating shaft (19) are fixedly connected to pulleys. A belt is connected between the two pulleys. A first rotating disk (21) is fixedly connected to the end of the first rotating shaft (18). A first drive assembly is connected between the first rotating disk (21) and the first piston cylinder (10). A second rotating disk (24) is fixedly connected to the end of the second rotating shaft (19). A second drive assembly is connected between the second rotating disk (24) and the second piston cylinder (13). A servo motor (20) is fixedly connected to the front side of the side mounting plate (17). The output shaft of the servo motor (20) is fixedly connected to the first rotating shaft (18).

2. The switchgear temperature control structure based on a composite heat dissipation channel according to claim 1, characterized in that: A coolant tank (7) is fixedly connected to the rear side of the coolant circulation assembly. A first inlet pipe (8) is fixedly connected to the top of the coolant tank (7). The end of the first inlet pipe (8) away from the coolant tank (7) extends into the interior of the switch cabinet (1) and is fixedly connected to one of the heat dissipation channel pipes (4). A second inlet pipe (11) is fixedly connected to the bottom of the coolant tank (7). The end of the second inlet pipe (11) away from the coolant tank (7) is fixedly connected to the first piston cylinder (10). A third inlet pipe (12) is fixedly connected to one side of the first piston cylinder (10). The end of the third inlet pipe (12) away from the first piston cylinder (10) extends into the interior of the switch cabinet (1) and is fixedly connected to the second main pipe (6).

3. The switchgear temperature control structure based on a composite heat dissipation channel according to claim 2, characterized in that: The outer wall of the coolant tank (7) is fixedly connected with a plurality of heat dissipation fins (9), which extend into the interior of the coolant tank (7). The outer surfaces of the second infusion pipe (11) and the third infusion pipe (12) are both equipped with a first one-way valve.

4. The switchgear temperature control structure based on a composite heat dissipation channel according to claim 1, characterized in that: The air circulation assembly includes an air intake pipe (14) fixedly connected to the side wall of the second piston cylinder (13). The bottom of the second piston cylinder (13) is fixedly connected to a first air intake pipe (15). The end of the first air intake pipe (15) away from the second piston cylinder (13) extends into the interior of the switch cabinet (1). The outer surface of the first air intake pipe (15) is fixedly connected to a second air intake pipe (16). The end of the second air intake pipe (16) away from the first air intake pipe (15) passes through and connects to the support base (2) and extends to its front. A second one-way valve is installed on both the air intake pipe (14) and the first air intake pipe (15).

5. The switchgear temperature control structure based on a composite heat dissipation channel according to claim 1, characterized in that: The first drive assembly includes a first linkage rod (22) rotatably connected to the outer surface of the first rotating disk (21) at an eccentric position. The first linkage rod (22) is rotatably connected to a first pull rod (23) at one end away from the first rotating disk (21). The first pull rod (23) extends into the interior of the first piston cylinder (10) and is fixedly connected to a first piston. The first piston is slidably connected to the inner wall of the first piston cylinder (10).

6. The switchgear temperature control structure based on a composite heat dissipation channel according to claim 1, characterized in that: The second drive assembly includes a second linkage rod (25) rotatably connected to the outer surface of the second rotating disk (24) at an eccentric position. A second pull rod (26) is rotatably connected to one end of the second linkage rod (25) away from the second rotating disk (24). The other end of the second pull rod (26) away from the second linkage rod (25) extends into the interior of the second piston cylinder (13) and is fixedly connected to a second piston. The second piston is slidably connected to the inner wall of the second piston cylinder (13).

7. The switchgear temperature control structure based on a composite heat dissipation channel according to claim 1, characterized in that: The side wall of the switch cabinet (1) is fixedly connected to two exhaust pipes (27), which are located at the front and rear sides of the electronic device module unit (3), respectively. A third one-way valve is installed on the exhaust pipe (27).

8. The switchgear temperature control structure based on a composite heat dissipation channel according to claim 1, characterized in that: Of the four heat dissipation channel pipes (4), three are located on the front side of the electronic device module unit (3) and one is located on the rear side of the electronic device module unit (3). Both sides of the bottom of the connecting support base (2) are provided with clearance openings that are compatible with the first main pipe (5).

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