Constant-temperature low-voltage power distribution cabinet

Abstract

The utility model discloses a constant-temperature low-voltage power distribution cabinet, which relates to the technical field of power distribution cabinets and comprises a cabinet body, a plurality of rotating columns are rotatably arranged on the outer wall of the cabinet body, and three Tesla valves are fixedly arranged on each rotating column; the exhaust mechanism comprises a plurality of exhaust pipes fixedly arranged at the top of the cabinet body; the steering mechanism comprises toothed plates arranged on the two side walls of the cabinet body in a sliding mode, a plurality of abutting rods are fixedly arranged between the two toothed plates, and the abutting rods abut against the two sides of the Tesla valve; cold air can only enter the cabinet body through the Tesla valve, so that hot air in the cabinet body is prevented from being gathered at an air inlet of the Tesla valve, meanwhile, the heat dissipation efficiency can be improved by matching with the exhaust pipe, exhaust of hot air in the cabinet body can be accelerated through matching of the horn and the exhaust pipe, the air flow rate is increased, and the heat dissipation effect is improved. And the air inlet of the Tesla valve can be blocked through the blocking plate as required, so that a certain moisture-proof function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, specifically to a constant temperature low voltage power distribution cabinet. Background Technology

[0002] A low-voltage switchgear is an electrical device used for centralized control and distribution of low-voltage electrical energy. It is mainly used in power systems in industrial, commercial, and residential locations. It mainly includes electrical components such as a cabinet, busbars, switches, control devices, and protective devices. The working principle of a low-voltage switchgear is to distribute the low-voltage electrical energy output from the transformer to various branches through the busbars, and then use switches, protective devices, and control devices to control and protect each branch to meet the power demand of different loads.

[0003] When low-voltage distribution cabinets are in use, the electrical appliances inside the cabinet will generate heat during operation. The busbars, cables and conductive parts of various electrical components inside the distribution cabinet all have a certain resistance. These components will also generate a certain amount of heat during power transmission due to the resistance. Therefore, in order to prevent electrical components from overheating and being damaged, to ensure insulation, and to maintain a stable working environment, the distribution cabinet needs to be cooled.

[0004] Low-voltage distribution cabinets require real-time heat dissipation for electrical components and power transmission components during use. Existing low-voltage distribution cabinets typically have ventilation openings on the surface of the cabinet body to allow air circulation between the inside and outside of the cabinet for heat dissipation. However, when heat is discharged through the ventilation openings, it accumulates around the openings, causing the discharged hot air to re-enter the cabinet body, thus affecting the heat dissipation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a constant temperature low-voltage distribution cabinet to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a constant temperature low-voltage distribution cabinet, comprising a cabinet body, wherein a plurality of rotating columns are rotatably arranged on the outer wall, and three Tesla valves are fixedly arranged on each of the rotating columns; an exhaust mechanism, comprising a plurality of exhaust pipes fixedly arranged on the top of the cabinet body; a steering mechanism, comprising toothed plates slidably arranged on the two side walls of the cabinet body, wherein a plurality of abutting rods are fixedly arranged between the two toothed plates, and each abutting rod abuts against both sides of the Tesla valve; and a sealing mechanism, comprising two fixed blocks fixedly arranged on the cabinet body, wherein a sealing plate is rotatably arranged between the two fixed blocks, and torsion springs are fixedly arranged on both sides of the sealing plate corresponding to the two fixed plates.

[0007] Preferably, each of the exhaust pipes is fixedly connected to a horn at its bottom, and the end of each horn away from the exhaust pipe is fixedly connected to the cabinet.

[0008] Preferably, each of the exhaust pipes is fixedly connected to the cabinet with an air intake pipe.

[0009] Preferably, a plurality of connecting rods are fixedly arranged between the two toothed plates, and a spring is fixedly arranged between each connecting rod and each abutting rod in a one-to-one correspondence.

[0010] Preferably, gears are rotatably provided on both sides of the cabinet, and each gear meshes with each toothed plate in a one-to-one correspondence.

[0011] Preferably, each of the gears is fixedly provided with a second throttle.

[0012] Preferably, two fixing plates are fixedly installed on the cabinet, and a sealing plate is rotatably installed between the two fixing plates.

[0013] Preferably, a rotating shaft is rotatably disposed between the two fixing plates, the rotating shaft is fixedly connected to the sealing plate, and a first handle is fixedly disposed at the end of the rotating shaft away from the sealing plate.

[0014] Preferably, one of the fixed plates is fixedly provided with two telescopic rods, and a limiting plate is fixedly provided at the end of the telescopic rod away from the fixed plate, and the limiting plate is sleeved on the rotating shaft.

[0015] Preferably, the first throttle has two insert blocks fixed on the side near the limiting plate, and torsion springs are fixedly installed on both sides of the sealing plate in a one-to-one correspondence with the two fixed plates.

[0016] In the above technical solution, this utility model provides a constant temperature low voltage distribution cabinet, which has the following beneficial effects: the Tesla valve allows cold air to enter the cabinet, thereby preventing hot air inside the cabinet from accumulating at the Tesla valve inlet. At the same time, the exhaust pipe can increase the heat dissipation efficiency. The combination of the horn and the exhaust pipe can accelerate the discharge of hot air inside the cabinet, thereby increasing the air flow rate and heat dissipation effect. The sealing plate can block the Tesla valve inlet when necessary, thus providing a certain degree of moisture protection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the gear structure provided for an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the sealing plate provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the structure of the Tesla valve provided in this embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the horn tube provided in an embodiment of the present utility model;

[0023] Figure 6 Provided for the embodiments of this utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0024] Figure 7 Provided for the embodiments of this utility model Figure 4 Enlarged view of the structure at point B in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Cabinet; 2. Storage box; 3. Exhaust pipe; 4. Horn; 5. Intake pipe; 10. Rotating column; 11. Tesla valve; 12. Abutment rod; 13. Connecting rod; 14. Spring; 15. Sealing plate; 16. Fixing plate; 17. Rotating shaft; 18. Telescopic rod; 19. Limiting plate; 20. First throttle; 21. Insert block; 22. Torsion spring; 23. Gear plate; 24. Gear; 25. Second throttle. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] Please see Figure 1-7A constant temperature low-voltage distribution cabinet, the technical solution proposed in this utility model includes a cabinet body 1, with a plurality of rotating columns 10 rotatably arranged on the outer wall, and three Tesla valves 11 fixedly arranged on each rotating column 10; an exhaust mechanism, which includes a plurality of exhaust pipes 3 fixedly arranged on the top of the cabinet body 1; a steering mechanism, which includes toothed plates 23 slidably arranged on the two side walls of the cabinet body 1, with a plurality of abutting rods 12 fixedly arranged between the two toothed plates 23, and each abutting rod 12 abutting against both sides of the Tesla valve 11; a sealing mechanism, which includes two fixed blocks fixedly arranged on the cabinet body 1, with a sealing plate 15 rotatably arranged between the two fixed blocks, and torsion springs 22 fixedly arranged on both sides of the sealing plate 15 corresponding to the two fixed plates 16; a placement box 2 fixedly arranged on the top of the cabinet body 1, and each exhaust pipe All three components are located within the placement box 2. A rotating column 10 is rotatably mounted on the back of the cabinet 1. Three Tesla valves 11 are fixedly installed within each rotating column 10. The air inlet of each Tesla valve 11 is located on the outer wall of the cabinet 1. The Tesla valves 11 control the entry of cold air from the outer wall of the cabinet 1 into the cabinet 1, while hot air inside the cabinet 1 cannot flow out through the Tesla valves 11. When hot air is generated inside the cabinet 1, it rises and is expelled from the cabinet 1 through the exhaust pipe 3 of the exhaust mechanism. Since cold air can only enter the cabinet 1 through the Tesla valves 11, the air inside the cabinet 1 can only be expelled through the exhaust pipe 3. This creates a gas circulation within the cabinet 1, preventing the heat from flowing to the inlet of the Tesla valve 11. This ensures that the air flowing from Tesla valve 11 to cabinet 1 is all cold air. On the other hand, since the gas keeps entering cabinet 1 from Tesla valve 11 at the bottom, the hot air at the top of cabinet 1 will keep flowing out from exhaust pipe 3. The hot air discharged from exhaust pipe 3 will continue to rise, thus preventing the hot air from entering cabinet 1 again. This increases the heat dissipation efficiency of cabinet 1, and there is no need to set up a separate blower or cooling device.

[0029] Specifically, each exhaust pipe 3 is fixedly connected to a horn 4 at its bottom, and the end of each horn 4 away from the exhaust pipe 3 is fixedly connected to the cabinet 1. The end of the horn 4 with the larger opening is connected to the cabinet 1, and the other end is connected to the exhaust pipe 3. The inner diameter of the exhaust pipe 3 is the same as the minimum inner diameter of the horn 4. After the hot air in the cabinet 1 enters the horn 4, it enters the exhaust pipe 3 through the horn 4. Because the diameter of the exhaust pipe 3 is small, the flow rate of the hot air changes from slow to fast, which reduces the pressure on the inner wall of the exhaust pipe 3. This allows the hot air discharged from the exhaust pipe 3 to have a certain initial velocity, enabling the hot air to be discharged higher, and also producing a certain adsorption effect.

[0030] Specifically, each exhaust pipe 3 is fixedly connected to the cabinet 1 by an intake pipe 5. When gas enters the exhaust pipe 3 from the horn 4, the gas velocity increases significantly. This creates an adsorption effect in the intake pipe 5, drawing some of the hot air from the cabinet 1 into the exhaust pipe 3 through the adsorption pipe. This further reduces the pressure inside the cabinet 1, allowing cold air with higher external pressure to enter the cabinet 1 through the Tesla valve 11. Air convection can be formed without the need for active equipment. Because the air temperature inside the cabinet 1 is higher than the air temperature outside the cabinet 1, the atmospheric pressure on the outer wall of the cabinet 1 is higher than that on the inner wall of the cabinet 1. This causes the gas on the outer wall of the cabinet 1 to tend to flow into the cabinet 1. Combined with the intake effect of the exhaust pipe 3, this greatly increases the exchange rate between the cabinet 1 and the outside air.

[0031] Specifically, multiple connecting rods 13 are fixedly arranged between the two toothed plates 23, and springs 14 are fixedly arranged between each connecting rod 13 and each abutting rod 12 in a one-to-one correspondence. The three Tesla valves 11 on the same rotating column 10 abut against the corresponding abutting rods 12 on both the upper and lower sides. Multiple springs 14 are arranged between each abutting rod 12 and the corresponding connecting plate. Since the rotating column 10 is rotatably connected to the cabinet wall on the back of the cabinet 1, by moving the two toothed plates 23 up and down at the same time, each connecting rod 13 can move up and down at the same time. Then, the abutting rods 12 push the Tesla valve 11 away from the rotating column 10 to rotate up or down, thereby controlling the direction of cold air blowing out of the Tesla valve 11, thereby adjusting the direction of air flow, so that the cold air blows on the electrical components in different positions, thereby enabling targeted cooling of different positions. The springs 14 can prevent the Tesla valve 11 from getting stuck when rotating.

[0032] Specifically, gears 24 are rotatably installed on both sides of the cabinet 1, and each gear 24 meshes with each toothed plate 23 in a one-to-one correspondence; a synchronizing rod is rotatably installed between the two gears 24, and the synchronizing rod is rotatably connected to the cabinet 1. By controlling the rotation of the gears 24, the corresponding toothed plates 23 can be controlled to move up and down, thereby controlling the orientation of the air outlets of each Tesla valve 11. The rotation of the two gears 24 can be controlled simultaneously by the synchronizing rod.

[0033] Specifically, each gear 24 is fixedly equipped with a second throttle 25; the second throttle 25 facilitates the rotation of the corresponding gear 24, thereby controlling the movement of the gear plate 23.

[0034] Specifically, two fixing plates 16 are fixedly installed on the cabinet 1, and a sealing plate 15 is rotatably installed between the two fixing plates 16. The fixing plates 16 are fixedly installed on the back of the cabinet 1 and are located on the upper side of each Tesla valve 11. The rotating sealing plate 15 can block the air inlet of each Tesla valve 11, thereby preventing moisture near the ground from entering the cabinet 1 through the Tesla valve 11 when the external air is humid, thus providing a certain degree of moisture protection.

[0035] Specifically, a rotating shaft 17 is rotatably arranged between the two fixed plates 16. The rotating shaft 17 is fixedly connected to the sealing plate 15. A first handle 20 is fixedly arranged at the end of the rotating shaft 17 away from the sealing plate 15. The sealing plate 15 can be rotated more conveniently through the first handle 20.

[0036] Specifically, two telescopic rods 18 are fixedly installed on one of the fixed plates 16. A limiting plate 19 is fixedly installed at the end of the telescopic rod 18 away from the fixed plate 16, and the limiting plate 19 is sleeved on the rotating shaft 17. The telescopic rods 18 enable the limiting plate 19 to slide with the fixed plate 16. The limiting plate 19 and the rotating shaft 17 can both rotate and slide. In the initial state, the limiting plate 19 abuts against the first handle 20. At this time, the limiting plate 19 fixes the handle, thereby fixing the rotating shaft 17. This fixes the sealing plate 15. When it is necessary to block the air inlet of the Tesla valve 11 through the sealing plate 15, the limiting plate 19 is moved towards the fixing plate 16 to separate the limiting plate 19 from the first throttle 20. At this time, the first throttle 20 can rotate. Then, after the sealing plate 15 is rotated at a certain angle, the limiting plate 19 is moved to make the limiting plate 19 abut against the first throttle 20 again, thereby fixing the sealing plate 15, so as to block or release the air inlet of the Tesla valve 11.

[0037] Specifically, the first throttle 20 has two fixed inserts 21 on the side near the limiting plate 19, and torsion springs 22 are fixedly installed on both sides of the sealing plate 15 and the two fixing plates 16 respectively. The limiting plate 19 has several slots (not shown in the figure) that cooperate with the inserts 21 on the side near the first throttle 20. The first throttle 20 can be fixed by the cooperation of the inserts 21 and the slots, so that the sealing plate 15 can be fixed when the air inlet of the Tesla valve 11 needs to be blocked. When the first throttle 20 is unlocked, the sealing plate 15 can automatically open the air inlet of the Tesla valve 11 by means of the torsion springs 22.

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

Claims

1. A constant temperature low-voltage distribution cabinet, comprising a cabinet body (1), characterized in that, The outer wall is rotatably provided with several rotating columns (10), and each of the rotating columns (10) is fixedly provided with three Tesla valves (11). The exhaust mechanism includes several exhaust pipes (3) fixedly installed on the top of the cabinet (1). The steering mechanism includes toothed plates (23) slidably disposed on both sides of the cabinet (1), and a plurality of abutting rods (12) fixedly disposed between the two toothed plates (23), each abutting rod (12) abutting against both sides of the Tesla valve (11); The sealing mechanism includes two fixed blocks fixedly mounted on the cabinet (1), and a sealing plate (15) is rotatably mounted between the two fixed blocks. Torsion springs (22) are fixedly mounted on both sides of the sealing plate (15) and the two fixed plates (16) respectively.

2. The constant temperature low-voltage distribution cabinet according to claim 1, characterized in that, Each of the exhaust pipes (3) is fixedly connected to a horn (4) at its bottom, and the end of each horn (4) away from the exhaust pipe (3) is fixedly connected to the cabinet (1).

3. A constant temperature low-voltage distribution cabinet according to claim 2, characterized in that, Each of the exhaust pipes (3) is fixedly connected to the cabinet (1) by an air intake pipe (5).

4. A constant temperature low-voltage distribution cabinet according to claim 3, characterized in that, Multiple connecting rods (13) are fixedly arranged between the two toothed plates (23), and springs (14) are fixedly arranged between each connecting rod (13) and each abutting rod (12) in a one-to-one correspondence.

5. A constant temperature low-voltage distribution cabinet according to claim 4, characterized in that, The cabinet (1) has gears (24) rotatably mounted on both sides of its side walls, and each gear (24) meshes with each toothed plate (23) in a one-to-one correspondence.

6. A constant temperature low-voltage distribution cabinet according to claim 5, characterized in that, Each of the gears (24) is fixedly provided with a second throttle (25).

7. A constant temperature low-voltage distribution cabinet according to claim 6, characterized in that, Two fixing plates (16) are fixedly installed on the cabinet (1), and a sealing plate (15) is rotatably installed between the two fixing plates (16).

8. A constant temperature low-voltage distribution cabinet according to claim 7, characterized in that, A rotating shaft (17) is rotatably disposed between the two fixed plates (16). The rotating shaft (17) is fixedly connected to the sealing plate (15). A first throttle (20) is fixedly disposed at the end of the rotating shaft (17) away from the sealing plate (15).

9. A constant temperature low-voltage distribution cabinet according to claim 8, characterized in that, Two telescopic rods (18) are fixedly installed on one of the fixed plates (16). A limiting plate (19) is fixedly installed at the end of the telescopic rod (18) away from the fixed plate (16). The limiting plate (19) is sleeved on the rotating shaft (17).

10. A constant temperature low-voltage distribution cabinet according to claim 9, characterized in that, The first throttle (20) has two inserts (21) fixed on the side near the limit plate (19), and torsion springs (22) are fixedly installed on both sides of the sealing plate (15) and the two fixed plates (16) in a one-to-one correspondence.

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