High-voltage power distribution cabinet heat dissipation structure

Abstract

A heat dissipation structure for a high-voltage distribution cabinet includes a cabinet body with a partition inside. The partition divides the space inside the cabinet into a left chamber and a right chamber, which are connected at the top. A first air inlet and a first air outlet are respectively provided on the left and right sides of the lower part of the cabinet body. A first exhaust fan is installed on the first air outlet. The cabinet body and the partition also have multiple vertically arranged enhanced heat dissipation structures. Each enhanced heat dissipation structure includes a second air inlet and a second air outlet on the left and right sides of the cabinet body, a through hole in the partition, and a second exhaust fan. The second exhaust fan is installed inside the second air outlet. A sealing device is vertically slidably connected to the cabinet body. A control mechanism is connected to the bottom of the cabinet body. When faster heat dissipation is needed, the first and second exhaust fans can be turned on simultaneously to quickly dissipate heat inside the cabinet.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear technology, and specifically to a heat dissipation structure for high-voltage switchgear. Background Technology

[0002] High-voltage switchgear refers to electrical products used in power systems for power generation, transmission, distribution, energy conversion, and consumption, playing roles such as switching, control, or protection, with voltage levels ranging from 3.6kV to 550kV. These mainly include high-voltage circuit breakers, high-voltage disconnect switches and grounding switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switchgear. The high-voltage switchgear manufacturing industry is an important component of the power transmission and transformation equipment manufacturing industry, holding a very important position in the entire power industry.

[0003] Existing high-voltage switchgear typically uses cooling fans for heat dissipation. When the temperature inside the cabinet is too high, the only way to increase the cooling efficiency is to increase the speed of the cooling fan. However, the actual air exchange efficiency inside the high-voltage switchgear is still not high, meaning the actual heat dissipation efficiency is still poor. Therefore, this invention provides a high-voltage switchgear heat dissipation structure with higher heat dissipation efficiency. Summary of the Invention

[0004] The present invention provides a heat dissipation structure for a high-voltage distribution cabinet to solve the above-mentioned technical problems. When the high-voltage distribution cabinet needs to accelerate heat dissipation, the first exhaust fan and the second exhaust fan can be turned on at the same time to quickly dissipate heat inside the cabinet.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention for a heat dissipation structure of a high-voltage distribution cabinet is as follows:

[0006] The system includes a cabinet with a partition inside, which divides the internal space into a left chamber and a right chamber. The left and right chambers are connected at the top. A first air inlet and a first air outlet are respectively located on the left and right sides of the lower part of the cabinet. A first exhaust fan is installed on the first air outlet. The cabinet and the partition also have multiple vertically arranged heat dissipation enhancement structures. Each heat dissipation enhancement structure includes a second air inlet and a second air outlet located on the left and right sides of the cabinet, a through hole in the partition, and a second exhaust fan. The second exhaust fan is installed inside the second air outlet. The through hole corresponds to the positions of the second air inlet and the second air outlet, and the through hole allows the left and right chambers to communicate with each other. A through hole is also provided between the first air inlet and the first air outlet of the partition. A sealing device is vertically slidably connected to the cabinet to seal the second air inlet, the second air outlet, and all through holes of the heat dissipation enhancement structures. A control mechanism is connected to the bottom of the cabinet to control the vertical movement of the sealing device.

[0007] The sealing device includes a first sealing plate slidably connected to the left side of the cabinet, a second sealing plate slidably connected to the right side of the cabinet, and a third sealing plate slidably connected to the partition. The first sealing plate has a first ventilation hole corresponding to the second air inlet, the second sealing plate has a second ventilation hole corresponding to the second air outlet, and the third sealing plate has a third ventilation hole corresponding to the through hole. The first sealing plate and the second sealing plate each have vertical strip-shaped through holes corresponding to the first air inlet and the first air outlet, respectively. The lower ends of the first sealing plate, the second sealing plate, and the third sealing plate are all connected to the same mounting panel.

[0008] Vertical slide rails are connected to the left and right sides of the cabinet and the partition; the first sealing plate, the second sealing plate and the third sealing plate are vertically slidably connected to the three vertical slide rails respectively.

[0009] A protective net is bolted to the vertical slide rail on the right side of the cabinet.

[0010] Both the first and second air inlets are equipped with filters.

[0011] A mounting frame is connected to the bottom of the cabinet; the control mechanism is mounted on the mounting frame.

[0012] The mounting frame is equipped with a mounting base; the control mechanism includes a motor, two vertical screws, and a synchronous drive mechanism; both vertical screws are rotatably connected between the cabinet and the mounting frame, and are threadedly connected to the mounting panel; the motor is fixed on the mounting base and connected to the two vertical screws through the synchronous drive mechanism, thereby synchronously rotating the two vertical screws.

[0013] The synchronous drive mechanism includes a rotating shaft rotatably connected between the mounting base and the mounting frame, a first gear mounted on the rotating shaft, and two second gears respectively mounted on two vertical screws; the first gear meshes with the two second gears respectively; the motor drives the first gear to rotate.

[0014] A first sprocket is connected below the motor; a second sprocket is connected to the shaft; the first sprocket and the second sprocket are connected by a chain.

[0015] The cabinet and partition are also equipped with two vertically arranged heat dissipation enhancement structures.

[0016] The technical effects achievable by this invention are as follows: The high-voltage distribution cabinet heat dissipation structure of this invention has two heat dissipation methods. In the first heat dissipation method, air enters through the first air inlet, and outside air first enters the left chamber, then bypasses the right chamber and exits through the first air outlet. The temperature inside the cabinet is cooled through this airflow circulation. In this case, only the first exhaust fan needs to work, which is more energy-efficient. In the second heat dissipation method, when the temperature inside the cabinet is still too high even with the first exhaust fan working alone, the sealing device is lowered to open the second air inlet, the second air outlet, and the through hole. Then, the second exhaust fan is started, and the temperature inside the cabinet is cooled by the first and second exhaust fans, which significantly increases the heat dissipation efficiency. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 This is a schematic diagram of a heat dissipation structure for a high-voltage distribution cabinet according to the present invention;

[0019] Figure 2 yes Figure 1 Enlarged view of part A;

[0020] Figure 3 This is a schematic diagram of the sealing device of the heat dissipation structure of a high-voltage switchgear according to the present invention after it has been opened;

[0021] Figure 4 This is a schematic diagram of the sealing device of the heat dissipation structure of a high-voltage distribution cabinet after it is closed, according to the present invention.

[0022] Figure 5 This is a cross-sectional view of the sealing device of the heat dissipation structure of a high-voltage distribution cabinet after it is closed, according to the present invention.

[0023] Figure 6 yes Figure 5 Enlarged view of part B;

[0024] Figure 7 yes Figure 5 Enlarged view of part C;

[0025] Figure 8 yes Figure 5 Enlarged view of part D;

[0026] Figure 9 yes Figure 5 Enlarged view of part E;

[0027] Figure 10 This is a cross-sectional view of the sealing device of the heat dissipation structure of a high-voltage distribution cabinet after it has been opened according to the present invention.

[0028] Figure 11 yes Figure 10 Enlarged view of part F. Detailed Implementation

[0029] The invention will now be described in further detail with reference to the accompanying drawings.

[0030] See Figures 1 to 11 .

[0031] A heat dissipation structure for a high-voltage distribution cabinet includes a cabinet body 1. A partition 2 is connected inside the cabinet body 1, dividing the space inside the cabinet body 1 into a left chamber 3 and a right chamber 4, which are connected at the top. A first air inlet 5 and a first air outlet 6 are respectively provided on the left and right sides below the cabinet body 1, and a first exhaust fan 7 is installed on the first air outlet 6. (Reference) Figure 5 By turning on the first exhaust fan 7, outside air enters through the first air inlet 5 on the lower left side of the cabinet 1, then passes through the left chamber 3 and the right chamber 4 in sequence, and finally exits through the first air outlet 6 on the lower right side of the cabinet 1, thereby continuously cooling the temperature inside the cabinet 1. This method of cooling the temperature inside the cabinet 1 is relatively energy-efficient.

[0032] The cabinet 1 and the partition 2 are also equipped with multiple vertically arranged enhanced heat dissipation structures. Specifically, the cabinet 1 and the partition 2 are equipped with two vertically arranged enhanced heat dissipation structures. The enhanced heat dissipation structure includes a second air inlet 8 and a second air outlet 9 opened on the left and right sides of the cabinet 1, a through hole 10 opened on the partition 2, and a second exhaust fan 61. The second exhaust fan 61 is installed in the second air outlet 9. The position of the through hole 10 corresponds to the position of the second air inlet 8 and the second air outlet 9, and the through hole 10 allows the left chamber 3 and the right chamber 4 to communicate with each other. The partition 2 is also provided with a through hole 10 between its first air inlet 5 and its first air outlet 6. The cabinet 1 is vertically slidably connected with a sealing device for sealing the second air inlet 8, the second air outlet 9 and all the through holes 10 of the enhanced heat dissipation structure.

[0033] Specifically, the sealing device includes a first sealing plate 11 vertically slidably connected to the left side of the cabinet 1, a second sealing plate 12 vertically slidably connected to the right side of the cabinet 1, and a third sealing plate 13 vertically slidably connected to the partition 2; more specifically, vertical slide rails 21 are connected to both sides of the cabinet 1 and the partition 2, and the first sealing plate 11, the second sealing plate 12, and the third sealing plate 13 are vertically slidably connected to the three vertical slide rails 21 respectively; the first sealing plate 11 has a first ventilation hole 14 corresponding to the second air inlet 8, the second sealing plate 12 has a second ventilation hole 15 corresponding to the second air outlet 9, and the third sealing plate 13 has a third ventilation hole 16 corresponding to the through hole 10. The first sealing plate 11 and the second sealing plate 12 have vertical strip-shaped through holes 17 corresponding to the first air inlet 5 and the first air outlet 6 respectively. The lower ends of the first sealing plate 11, the second sealing plate 12, and the third sealing plate 13 are all connected to the same mounting panel 18.

[0034] The bottom of the cabinet 1 is connected to a control mechanism for controlling the up-and-down movement of the sealing device; specifically, a mounting frame 31 is connected to the bottom of the cabinet 1, and the control mechanism is mounted on the mounting frame 31; a mounting base 32 is mounted on the mounting frame 31; the control mechanism includes a motor 33, two vertical screws 34, and a synchronous drive mechanism. Both vertical screws 34 are rotatably connected between the cabinet 1 and the mounting frame 31, and are threadedly connected to the mounting panel 18. The motor 33 is fixed to the mounting base 32 and connected to the two vertical screws 34 through the synchronous drive mechanism, thereby... Two vertical screws 34 rotate synchronously; the synchronous drive mechanism includes a rotating shaft 41 rotatably connected between the mounting base 32 and the mounting frame 31, a first gear 42 mounted on the rotating shaft 41, and two second gears 43 respectively mounted on the two vertical screws 34; the first gear 42 meshes with the two second gears 43 respectively, and the motor 33 drives the first gear 42 to rotate; more specifically, a first sprocket 51 is connected below the motor 33, and a second sprocket 52 is connected on the rotating shaft 41, and the first sprocket 51 and the second sprocket 52 are connected by a chain 53.

[0035] The control mechanism drives the first sprocket 51 to rotate via the motor 33. The first sprocket 51 then drives the second sprocket 52, the shaft 41, and the first gear 42 to rotate via the chain 53. While the first gear 42 is rotating, it drives the second gear 43 and the vertical screw 34 to rotate. Since the first gear 42 meshes with the two second gears 43 respectively, the two vertical screws 34 rotate at the same speed and in the same direction, thereby synchronously driving the mounting panel 18, the first sealing plate 11, the second sealing plate 12, and the third sealing plate 13 to move upward or downward stably.

[0036] In normal use, this invention generally only requires turning on the first exhaust fan 7 for heat dissipation. At this time, the through holes 10 on the partition 2, the second air inlets 8 on the left and right sides of the cabinet 1, and the second air outlets 9 are all sealed by a sealing device (see reference). Figure 5 , 6 (7, 8), and the first air outlet 6 and the first air inlet 5 are both directly opposite the lower end of the vertical strip-shaped through hole 17 (see reference). Figure 4 , 6 8); When the temperature inside cabinet 1 is still too high even with the first exhaust fan 7 working, the sealing device is lowered by the control mechanism. Figure 3 Position (i.e., the first air outlet 6 and the first air inlet 5 are both directly opposite the upper end of the vertical strip through hole 17), at this time the through hole 10 on the partition 2, the second air inlet 8 and the second air outlet 9 on the left and right sides of the cabinet 1 are all opened, and then the first air outlet 7 and the two second air outlets 61 are turned on. The first air outlet 7 and the two second air outlets 61 help to dissipate heat, and the heat dissipation efficiency is greatly increased, and the heat dissipation effect is good.

[0037] As a preferred option, a protective net 22 is bolted onto the vertical slide rail 21 on the right side of the cabinet 1, and a filter 23 is installed on both the first air inlet 5 and the second air inlet 8.

Claims

1. A heat dissipation structure for a high-voltage switchgear, comprising a cabinet (1), characterized in that: The cabinet (1) is connected to a partition (2); the partition (2) divides the space inside the cabinet (1) into a left chamber (3) and a right chamber (4); the left chamber (3) and the right chamber (4) are connected at the top; a first air inlet (5) and a first air outlet (6) are respectively provided on the left and right sides of the bottom of the cabinet (1); a first exhaust fan (7) is installed on the first air outlet (6); the cabinet (1) and the partition (2) are also provided with multiple vertically arranged heat dissipation enhancement structures; the heat dissipation enhancement structures include a second air inlet (8) and a second air outlet (9) opened on the left and right sides of the cabinet (1), and a through hole (10) opened on the partition (2). And a second air outlet (61); the second air outlet (61) is installed in the second air outlet (9); the position of the through hole (10) corresponds to the position of the second air inlet (8) and the second air outlet (9), and the through hole (10) allows the left chamber (3) and the right chamber (4) to communicate with each other; the partition (2) also has a through hole (10) between its first air inlet (5) and first air outlet (6); the cabinet (1) is vertically slidably connected to a sealing device for sealing the second air inlet (8), the second air outlet (9) and all the through holes (10) of the enhanced heat dissipation structure; the bottom of the cabinet (1) is connected to a control mechanism for controlling the up and down movement of the sealing device.

2. The heat dissipation structure for a power distribution cabinet according to claim 1, characterized in that: The sealing device includes a first sealing plate (11) vertically slidably connected to the left side of the cabinet (1), a second sealing plate (12) vertically slidably connected to the right side of the cabinet (1), and a third sealing plate (13) vertically slidably connected to the partition (2); the first sealing plate (11) is provided with a first ventilation hole (14) corresponding to the second air inlet (8), the second sealing plate (12) is provided with a second ventilation hole (15) corresponding to the second air outlet (9), and the third sealing plate (13) is provided with a third ventilation hole (16) corresponding to the through hole (10); the first sealing plate (11) and the second sealing plate (12) are respectively provided with vertical strip through holes (17) corresponding to the first air inlet (5) and the first air outlet (6); the lower ends of the first sealing plate (11), the second sealing plate (12) and the third sealing plate (13) are all connected to the same mounting panel (18).

3. The heat dissipation structure for a power distribution cabinet according to claim 2, characterized in that: Vertical slide rails (21) are connected to the left and right sides of the cabinet (1) and the partition (2); the first sealing plate (11), the second sealing plate (12) and the third sealing plate (13) are vertically slidably connected to the three vertical slide rails (21).

4. The heat dissipation structure of a power distribution cabinet according to claim 2, characterized in that: A protective net (22) is installed on the vertical slide rail (21) on the right side of the cabinet (1) by bolts.

5. The heat dissipation structure for a power distribution cabinet according to claim 2, characterized in that: Both the first air inlet (5) and the second air inlet (8) are equipped with filters (23).

6. The heat dissipation structure of a power distribution cabinet according to claim 2, characterized in that: The cabinet (1) is connected to an installation frame (31) below; the control mechanism is installed on the installation frame (31).

7. The heat dissipation structure for a power distribution cabinet according to claim 6, characterized in that: The mounting frame (31) is equipped with a mounting base (32); the control mechanism includes a motor (33), two vertical screws (34) and a synchronous drive mechanism; both vertical screws (34) are rotatably connected between the cabinet (1) and the mounting frame (31), and are threadedly connected to the mounting panel (18); the motor (33) is fixed on the mounting base (32) and connected to the two vertical screws (34) through the synchronous drive mechanism, thereby synchronously rotating the two vertical screws (34).

8. The heat dissipation structure of a power distribution cabinet according to claim 7, characterized in that: The synchronous drive mechanism includes a rotating shaft (41) rotatably connected between the mounting base (32) and the mounting frame (31), a first gear (42) mounted on the rotating shaft (41), and two second gears (43) respectively mounted on two vertical screws (34); the first gear (42) meshes with the two second gears (43) respectively; the motor (33) drives the first gear (42) to rotate.

9. The heat dissipation structure of a power distribution cabinet according to claim 8, characterized in that: A first sprocket (51) is connected below the motor (33); a second sprocket (52) is connected on the shaft (41); the first sprocket (51) and the second sprocket (52) are connected by a chain (53).

10. The heat dissipation structure of a power distribution cabinet according to claim 1, characterized in that: The cabinet (1) and the partition (2) are also provided with two vertically arranged heat dissipation enhancement structures.

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