Heat dissipation device of electrical primary circuit breaker

Abstract

The invention relates to an electrical primary circuit breaker heat dissipation device which comprises an installation box with a box door, a plurality of heat dissipation holes are formed in the inner bottom wall of the installation box, a placement frame parallel to the bottom wall is arranged in the installation box, and a plurality of circuit breakers are fixedly arranged on the placement frame side by side. A heat dissipation unit is arranged above the circuit breaker, and the heat dissipation unit comprises an air cooling power assembly, an air inlet dust removal assembly and an adjustable heat dissipation assembly; the adjustable heat dissipation assembly comprises heat dissipation plates arranged on the two sides of each circuit breaker, heat dissipation adjusting mechanisms used for controlling the distance between the adjacent heat dissipation plates are arranged on the sides, away from the box door, of the heat dissipation plates, and the heat dissipation adjusting mechanisms of the heat dissipation plates are fixedly connected. A flow dividing box communicated with an air channel of the air cooling power assembly is arranged between the air cooling power assembly and the circuit breaker in a sliding mode, the flow dividing box is movably connected with the heat dissipation adjusting mechanism, the side, facing the circuit breaker, of the flow dividing box is communicated with a plurality of air blowing holes through an air channel, and a telescopic power piece is arranged between the air blowing flow dividing box and the air cooling power assembly. Therefore, rapid and stable heat dissipation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breaker heat dissipation, and in particular to a heat dissipation device for an electric primary circuit breaker. Background Art

[0002] Electrical equipment is divided into primary equipment and secondary equipment. Primary equipment refers to electrical equipment directly used for the production, transmission and distribution of electrical energy, including generators, transformers, circuit breakers, disconnectors, automatic switches, contactors, knife switches, busbars, transmission lines, power cables, reactors, motors, etc. Among them, circuit breakers, as a power control device, are used to control the on-off switch of electrical circuits to protect lines and power supplies in the event of overload, short circuit and undervoltage. Existing circuit breakers generally include a shell and components inside the shell. Due to the small space inside the shell, the terminals of the circuit breaker will generate a lot of heat after being connected to the power supply for a long time.

[0003] The existing circuit breaker heat dissipation device cannot effectively fix the circuit breaker in the device body, and the natural air flow heat dissipation alone cannot effectively and quickly dissipate the heat. In the heat dissipation process, the circuit breaker located in the device body is likely to generate a large amount of heat and form heat accumulation. If the heat cannot be dissipated, it is easy to affect the performance of the circuit breaker, thereby causing damage to the circuit breaker and causing property or casualties. In addition, impurities such as dust from the outside are also likely to damage the circuit breaker. The accumulation of dust is also likely to reduce the heat dissipation effect, which is not conducive to the dissipation of heat. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To achieve the above object, the present invention proposes a heat dissipation device for an electrical primary circuit breaker, comprising an installation box with a box door, a bottom wall of the installation box is provided with a plurality of heat dissipation holes, a placement rack is provided in the installation box parallel to the bottom wall, and a plurality of circuit breakers are fixedly arranged and arranged in parallel on the placement rack; a heat dissipation unit is provided above the circuit breaker, and the heat dissipation unit comprises an air-cooled power component, an air intake dust removal component and an adjustable heat dissipation component;

[0006] The air-cooled power assembly is fixedly arranged on the top wall of the installation box, the air intake dust removal assembly is arranged on the outer side wall of the installation box, the air intake dust removal assembly is connected to the air-cooled power assembly through an air path, and the air-cooled power assembly is connected to the air intake dust removal assembly through a gas transmission;

[0007] The adjustable heat dissipation assembly includes heat dissipation plates arranged on both sides of each circuit breaker, and a heat dissipation adjustment mechanism for controlling the distance between adjacent heat dissipation plates is arranged on the heat dissipation plate facing away from the box door, and the heat dissipation plate and the heat dissipation adjustment mechanism are fixedly connected, and a shunt box connected to the air path of the air-cooled power assembly can be slidably arranged between the air-cooled power assembly and the circuit breaker, the shunt box is movably connected to the heat dissipation adjustment mechanism, and the shunt box is connected to the air path of the circuit breaker with a plurality of blowing holes, and a telescopic power part is arranged between the blowing shunt box and the air-cooled power assembly.

[0008] The present invention provides the air cooling power component to supply the required air volume for air cooling, and blows air to each circuit breaker through the shunt box for air cooling and heat dissipation. The shunt box can adjust the distance between the shunt box and the circuit breaker under the action of the telescopic power part, and the heat dissipation adjustment mechanism and the shunt box movable connection can move with the up and down movement of the shunt box, thereby adjusting the distance between adjacent heat dissipation plates. The purpose of adjusting the heat dissipation effect is achieved by synchronously adjusting the distance between the shunt box and the circuit breaker and the distance between the heat dissipation plate and the circuit breaker. When the heat is high, the heat emitted by the circuit breaker can be quickly discharged, and the dust entering the installation box can be reduced under the action of the air intake dust removal component.

[0009] Optionally, the heat dissipation adjustment mechanism includes a sliding groove fixedly arranged on the inner wall of the mounting box, the sliding groove opening is arranged toward one side of the diverter box, and the sliding groove is open to the side of the heat sink and is provided with a clearance opening, a plurality of sliding blocks are slidingly arranged in the sliding groove, each of the sliding blocks passes through the clearance opening and is fixedly connected to each heat sink in a one-to-one correspondence, a connecting guide rod is hinged on the sliding block, a hollow adjustment cylinder is hinged on the diverter box, the connecting guide rod is inserted into the adjustment cylinder, and a support spring is arranged between the end of the connecting guide rod and the bottom wall of the adjustment cylinder.

[0010] Furthermore, a limiting stopper rod for preventing the sliding block from leaving the sliding groove is arranged in the sliding groove, and the limiting stopper rod is slidably connected to the sliding block.

[0011] Furthermore, the positions of two adjustment cylinders corresponding to adjacent heat sinks are arranged in an eight-shaped shape; and the positions of two adjustment cylinders corresponding to the heat sinks on both sides of the same circuit breaker are arranged in an inverted eight-shaped shape.

[0012] Furthermore, a shift lever is elastically connected to the blow box on one side facing the circuit breaker; and a telescopic tube is provided to connect the air path between the blow box and the air-cooled power assembly.

[0013] Furthermore, the air-cooled power assembly includes a power box suspended on the top wall of the installation box, the power box is connected to the telescopic tube, and a fan is fixedly arranged on the top wall of the power box directly opposite to the telescopic tube, a servo motor is fixedly arranged on the top wall inside the installation box directly opposite to the fan, the fan includes a kinetic energy rod for inputting torque, the kinetic energy rod passes through the top wall of the power box and is fixedly connected to the output shaft of the servo motor, an exhaust pipe is connected to the power box, and the exhaust pipe is connected to the air path of the air intake dust removal assembly.

[0014] Furthermore, the air-cooled power assembly also includes a power transmission mechanism for transmitting power to the air intake dust removal assembly, the power transmission mechanism includes an elliptical rotating wheel arranged on the output shaft of the servo motor, and push slides arranged parallel to the box door are symmetrically arranged on both sides of the elliptical rotating wheel, and each of the push slides is parallel to the side away from the servo motor. A transmission control box is fixedly connected to the top wall of the installation box;

[0015] Two transmission and control air cavities are symmetrically arranged in each of the transmission and control boxes, and each transmission and control air cavity is connected with a plurality of energy supply cylinders along the direction toward the push slide. A pressure transmission rod is slidingly and sealably connected in the energy supply cylinder, and one end of the pressure transmission rod facing away from the energy supply cylinder is fixedly connected to the push slide. Return springs are arranged on the outer sleeves of the plurality of energy supply cylinders on the same transmission and control box;

[0016] A transverse control tube is provided in each of the control air cavities, and a pressure rod is slidably and sealedly connected in the transverse control tube. The pressure rods in the two control air cavities on the same side but in different control boxes are fixedly connected to the same push-pull plate. A hollow pressure-stabilizing box is provided on the push-pull plate facing away from the servo motor. The pressure-stabilizing box is fixedly connected to the top wall of the installation box, and several groups of pressure-regulating components are provided between the pressure-stabilizing box and the push-pull plate. The pressure-regulating component is connected to the pressure-stabilizing box, and a control tube is provided to connect the air path between the pressure control box and the air intake and dust removal component to supply air pressure power to the air intake and dust removal component.

[0017] Furthermore, the pressure regulating assembly includes a pressure regulating tube, a pressure regulating cylinder, a connecting slide rod and a pressure regulating spring;

[0018] The pressure regulating pipe is connected to the pressure stabilizing tank;

[0019] The closed end of the pressure regulating cylinder is inserted into the pressure regulating pipe, and the pressure regulating cylinder and the pressure regulating pipe are slidably and sealedly connected;

[0020] The connecting slide rod is inserted into the open end of the pressure regulating cylinder and is slidably connected to the pressure regulating cylinder, and the other end of the connecting slide rod is fixedly connected to the push-pull plate;

[0021] The pressure regulating spring is arranged between the inner bottom wall of the pressure regulating cylinder and the top end of the connecting slide rod.

[0022] Further, the air intake dust removal assembly comprises a purification box arranged on the side wall of the installation box, the purification box is provided with a plurality of air inlets, an air extraction chamber is provided in the purification box, the air inlet is connected to the air extraction chamber, and the air extraction chamber is connected to the air extraction pipe, a dust removal net is provided in the air extraction chamber near the air inlet, a dust removal assembly is provided between the dust removal net and the air inlet, and the purification box is slidably provided with a dust collection drawer below the dust removal assembly;

[0023] The dust removal assembly includes a guide shaft arranged parallel to the dust collecting drawer, a plurality of cleaning brushes are slidably connected to the guide shaft, and the plurality of cleaning brushes are fixedly connected to the same supporting slider at one end away from the dust collecting drawer, a accommodating cavity for accommodating the control tube is arranged in the supporting slider, a piston ring is arranged at the pipe mouth of the control tube, and the piston ring is slidably and sealingly connected to the inner wall of the accommodating cavity.

[0024] Furthermore, a circulating water cooling unit is arranged under the placement rack, and the circulating water cooling unit includes a cold water tank arranged on the bottom wall of the installation box, and a plurality of water cooling pipes are arranged on the placement rack along the length of the placement rack, and a plurality of water cooling pipes are connected to a water supply pipe at one end facing the cold water tank, and a plurality of water cooling pipes are connected to a collecting pipe at one end away from the fixed pipe, and a return pipe is arranged between the collecting pipe and the cold water tank, and the water supply pipe and the return pipe are both connected to the cold water tank, and a water pump is arranged on the connecting pipe between the water supply pipe and the cold water tank, and a heat exchanger is arranged at a position of the return pipe toward the cold water tank.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0027] Figure 1 It is a schematic diagram of the overall structure of a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0028] Figure 2 It is a cross-sectional view of a heat dissipation device for an electrical primary circuit breaker of the present invention, and is intended to show the internal structure as a whole;

[0029] Figure 3 It is a schematic diagram of the structure of an adjustable heat dissipation component in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0030] Figure 4 It is a cross-sectional view of an adjustable heat dissipation component in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0031] Figure 5 It is a structural schematic diagram of a heat dissipation adjustment mechanism in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0032] Figure 6 It is a partial structural schematic diagram of an air-cooled power component in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0033] Figure 7 It is a partial cross-sectional view of an air-cooled power component in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0034] Figure 8 It is a partial structural schematic diagram of an air-cooled power component in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0035] Fig. 9 It is a schematic diagram of the overall structure of a recent dust removal unit in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0036] Fig.10 It is a cross-sectional view of a recent dust removal unit in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0037] Fig.11 It is a structural schematic diagram of a circulating water cooling unit in a heat dissipation device for an electrical primary circuit breaker of the present invention;

[0038] Fig.12 The present invention is a cross-sectional view of a circulating water cooling unit in a heat dissipation device for an electrical primary circuit breaker.

[0039] Description of reference numerals:

[0040] 1. Installation box; 2. Box door; 3. Heat dissipation holes; 4. Placement rack; 5. Circulating water cooling unit; 6. Heat dissipation unit; 7. Adjustable heat dissipation assembly; 8. Air cooling power assembly; 9. Air intake dust removal assembly; 10. Power transmission mechanism; 11. Sliding groove; 12. Diverter box; 13. Telescopic power part; 14. Telescopic tube; 15. Adjustment cylinder; 16. Connecting guide rod; 17. Heat dissipation plate; 18. Heat sink; 19. Shift lever; 20. Blowing hole; 21. Sliding block; 22. Limit baffle; 23. Servo motor; 24. Power box; 25. Exhaust pipe; 26. Elliptical wheel; 27. Push slide; 28. Transmission control box; 29 , energy supply cylinder; 30, pressure transmission rod; 31, transmission and control air cavity; 32, transverse control tube; 33, pressure-bearing rod; 34, telescopic tube; 35, kinetic rod; 36, fan; 37, purification box; 38, dust collection drawer; 39, air inlet; 40, dust removal net; 41, support slider; 42, cleaning brush; 43, guide shaft; 44, pressure stabilizing box; 45, control tube; 46, piston ring; 47, pressure regulating tube; 48, push-pull plate; 49, connecting slide rod; 50, pressure regulating cylinder; 51, cold water tank; 52, water supply pipe; 53, collection pipe; 54, water cooling pipe; 55, return pipe; 56, heat exchanger; 57, water pump; 58, circuit breaker. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0042] The present invention provides a heat dissipation device for an electric primary circuit breaker, Figures 1 to 12 Elaborate in detail.

[0043] A heat dissipation device for an electrical primary circuit breaker, referring to Figure 1 to Figure 2 , comprising an installation box 1 with a box door 2, a plurality of heat dissipation holes 3 are arranged on the bottom wall of the installation box 1, a placement rack 4 is arranged in parallel with the bottom wall in the installation box 1, and a plurality of circuit breakers 58 are fixedly arranged and arranged in parallel on the placement rack 4; a heat dissipation unit 6 is arranged above the circuit breaker 58, and the heat dissipation unit 6 comprises an air-cooled power component 8, an air intake dust removal component 9 and an adjustable heat dissipation component 7;

[0044] The air-cooled power assembly 8 is fixedly arranged on the top wall of the installation box 1, the air intake dust removal assembly 9 is arranged on the outer side wall of the installation box 1, the air intake dust removal assembly 9 is connected with the air-cooled power assembly 8 by air path, and the air-cooled power assembly 8 is connected with the air intake dust removal assembly 9 by gas transmission;

[0045] The adjustable heat dissipation assembly 7 includes heat dissipation plates 17 arranged on both sides of each circuit breaker 58. The heat dissipation plate 17 is provided with a heat dissipation adjustment mechanism for controlling the spacing between adjacent heat dissipation plates 17 on the side facing away from the box door 2. The heat dissipation adjustment mechanism of the heat dissipation plate 17 is fixedly connected. A diverter box 12 connected to the air path of the air-cooled power assembly 8 is slidably arranged between the air-cooled power assembly 8 and the circuit breaker 58. The diverter box 12 is movably connected to the heat dissipation adjustment mechanism, and the diverter box 12 is connected to the air path toward the circuit breaker 58. A plurality of blowing holes 20 are provided, and a telescopic power part 13 is arranged between the blowing diverter box 12 and the air-cooled power assembly 8.

[0046] The present invention provides an air-cooling power assembly 8 to supply the required air volume for air cooling, and blows air to each circuit breaker 58 through the shunt box 12 for air cooling and heat dissipation. The shunt box 12 can adjust the distance between the shunt box 12 and the circuit breaker 58 under the action of the telescopic power member 13. When the shunt box 12 is close to the circuit breaker 58, the circuit breaker 58 is close to the air blowing hole 20, and the wind speed is high. At this time, the heat generated by the circuit breaker 58 can be accelerated. When the shunt box 12 is far away from the circuit breaker 58, the circuit breaker 58 is far away from the air blowing hole 20. At this time, the wind speed is low. However, due to the increase in the distance between the circuit breaker 58 and the shunt box 12, the air has enough space to move, and each air outlet can cover the space below more widely, thereby taking away the heat generated by the circuit breaker 58 more evenly.

[0047] At the same time, the heat dissipation adjustment mechanism and the active connection between the diverter box 12 can move along with the up and down movement of the diverter box 12, thereby realizing the adjustment of the distance between adjacent heat sinks 17. The purpose of adjusting the heat dissipation effect is achieved by synchronously adjusting the distance between the diverter box 12 and the circuit breaker 58 and the distance between the heat sink 17 and the circuit breaker 58. When the heat is high, the heat emitted by the circuit breaker 58 can be quickly discharged, and the dust entering the installation box 1 can be reduced under the action of the air intake dust removal component 9.

[0048] In some embodiments, reference Figures 1 to 5 The heat dissipation adjustment mechanism includes a sliding groove 11 fixedly arranged on the inner wall of the installation box 1, the opening of the sliding groove 11 is arranged toward the side of the shunt box 12, and the sliding groove 11 is open to the side of the heat sink 17 and is provided with a clearance opening, a plurality of sliding blocks 21 are slidably arranged in the sliding groove 11, each sliding block 21 passes through the clearance opening and is fixedly connected to each heat sink 17 in a one-to-one correspondence, a connecting guide rod 16 is hinged on the sliding block 21, a hollow adjustment cylinder 15 is hinged on the shunt box 12, the connecting guide rod 16 is inserted into the adjustment cylinder 15, and a supporting spring is arranged between the end of the connecting guide rod 16 and the bottom wall of the adjustment cylinder 15.

[0049] When emergency rapid heat dissipation is required, the shunt box 12 is pressed down close to the circuit breaker 58. As the shunt box 12 is pressed down, the support spring is compressed, and the connecting guide rod 16 drives the slider to move in the sliding groove 11, thereby driving the heat sink 17 to follow the movement, so that the heat sink 17 moves toward the nearest circuit breaker 58 until the heat sinks 17 on both sides of the circuit breaker 58 are clamped on both sides of the circuit breaker 58. At this time, since the heat sink 17 is close to the circuit breaker 58, the heat sink 17 can quickly take away the heat from the circuit breaker 58 and dissipate it in the surrounding air. At this time, due to the downward pressure of the shunt box 12, the wind speed increases, thereby quickly taking the hot air away from the circuit breaker 58, and drawing the external cold air from the air intake dust removal assembly 9 into the installation box 1, thereby achieving rapid cooling.

[0050] In one embodiment, a plurality of heat sinks 18 are disposed on the heat sink 17 , and the heat sinks 18 between adjacent heat sinks 17 are relatively staggered to avoid collision between the heat sinks 18 between adjacent heat sinks 17 .

[0051] In some embodiments, reference Figure 5 The sliding groove 11 is provided with a limit stopper for preventing the sliding block 21 from leaving the sliding groove 11, and the limit stopper is slidably connected to the sliding block 21. The setting of the limit stopper can prevent the sliding block 21 from moving along the clearance opening toward the heat sink 17 and leaving the sliding groove 11, so that the sliding block 21 can slide stably in the sliding groove 11.

[0052] In some embodiments, reference Figures 2 to 5 , the positions of the two adjustment cylinders 15 connected to the adjacent heat sinks 17 are arranged in an eight-shaped shape; the positions of the two adjustment cylinders 15 connected to the heat sinks 17 on both sides of the same circuit breaker 58 are arranged in an inverted eight-shaped shape. When the shunt box 12 is pressed down, the adjacent heat sinks 17 can be moved toward different circuit breakers 58, thereby ensuring that each heat sink 17 can be close to the nearest circuit breaker 58. On the other hand, it can ensure that during the process of pressing down the shunt box 12, the adjustment cylinder 15 and the connecting guide rod 16 will not remain in a vertical state of the shunt box 12, causing the shunt box 12 to get stuck during the descent process.

[0053] In some embodiments, reference Figure 4 The air blowing box is elastically connected with a shift lever 19 on the side facing the circuit breaker 58; the air blowing box is connected with the air cooling power assembly 8 by a telescopic tube 3414. The setting of the shift lever can ensure that there is always a certain space between the shunt box 12 and the circuit breaker 58, so as to ensure that when the shunt box 12 is at the lowest position, the air blown out of the air hole 20 can also completely cover the circuit breaker 58 below. The setting of the telescopic tube 3414 can conveniently supply air following the movement of the shunt box 12.

[0054] In some embodiments, the air-cooled power assembly 8 includes a power box 24 suspended on the top wall of the installation box 1, the power box 24 is connected to the telescopic tube 3414, and a fan 36 is fixedly arranged on the top wall of the power box 24 directly opposite the telescopic tube 3414, and a servo motor 23 is fixedly arranged on the top wall of the installation box 1 directly opposite the fan 36, and the fan 36 includes a kinetic rod 35 for inputting torque, and the kinetic rod 35 passes through the top wall of the power box 24 and is fixedly connected to the output shaft of the servo motor 23, and the power box 24 is connected to the exhaust pipe 25, and the exhaust pipe 25 is connected to the air path of the air intake dust removal assembly 9. The setting of the power box 24 can isolate the external environment and form a relatively closed space, thereby increasing the suction force of the air in the external environment through the exhaust pipe 25 when the fan 36 rotates.

[0055] In some embodiments, reference Figures 6 to 8 The air-cooled power assembly 8 also includes a power transmission mechanism 10 for transmitting power to the air intake dust removal assembly 9. The power transmission mechanism 10 includes an elliptical rotating wheel 26 fixedly arranged on the output shaft of the servo motor 23. Pushing slides 27 arranged parallel to the box door 2 are symmetrically arranged on both sides of the elliptical rotating wheel 26. A transmission control box 28 is arranged parallel to the side of each pushing slide 27 away from the servo motor 23. The transmission control box 28 is fixedly connected to the top wall of the installation box 1;

[0056] Two transmission and control air chambers 31 are symmetrically arranged in each transmission and control box 28. Each transmission and control air chamber 31 is connected with a plurality of energy supply cylinders 29 in the direction toward the push slide 27. A pressure delivery rod 30 is slidably and sealedly connected in the energy supply cylinder 29. One end of the pressure delivery rod 30 away from the energy supply cylinder 29 is fixedly connected to the push slide 27. A return spring is arranged on the outer sleeve of the plurality of energy supply cylinders 29 on the same transmission and control box 28.

[0057] A transverse control tube 4532 is provided in each control air cavity 31, and a pressure rod 33 is slidably and sealedly connected in the transverse control tube 4532. The pressure rods 33 in the two control air cavities 31 on the same side but in different control boxes 28 are fixedly connected to the same push-pull plate 48. A hollow pressure-stabilizing box 44 is provided on the push-pull plate 48 facing away from the servo motor 23. The pressure-stabilizing box 44 is fixedly connected to the top wall of the installation box 1, and a plurality of pressure-regulating components are provided between the pressure-stabilizing box 44 and the push-pull plate 48. The pressure-regulating components are connected to the pressure-stabilizing box 44, and a control tube 45 is provided to connect the air path between the pressure control box and the air intake dust removal component 9, so as to supply air pressure power to the air intake dust removal component 9.

[0058] When the servo motor 23 rotates, the click will drive the elliptical rotating wheel 26 to rotate. When the elliptical rotating wheel 26 rotates, it will periodically push the two pushing slides 27 to move. When the pushing slide 27 moves toward the transmission control box 28, it will drive the pressure input rod 30 to move toward the energy supply cylinder 29, so that the gas is pressed into the transmission control air cavity 31. The gas pressure in the transmission control air cavity 31 increases, which will push the pressure rod 33 in the transverse control tube 4532 to move. When the reset spring drives the pressure input rod 30 to reset, the gas pressure in the transmission control air cavity 31 decreases, and the pressure rod 33 in the transverse control tube 4532 will be brought back to its original position;

[0059] The reciprocating movement of the pressure rod 33 will drive the reciprocating movement of the push-pull plate 48, and the reciprocating movement of the push-pull plate 48 will drive the pressure regulating component to work. The pressure regulating component can adjust the air pressure in the pressure stabilizing box 44. The change of air pressure in the pressure stabilizing box 44 is transmitted to the air intake dust removal component 9 through the control tube 45, thereby providing power for the air intake dust removal component 9.

[0060] In some embodiments, reference Figure 8 , the pressure regulating assembly includes a pressure regulating tube 47, a pressure regulating cylinder 50, a connecting slide rod 49 and a pressure regulating spring;

[0061] The pressure regulating tube 47 is connected to the pressure stabilizing tank 44;

[0062] The closed end of the pressure regulating cylinder 50 is inserted into the pressure regulating tube 47, and the pressure regulating cylinder 50 and the pressure regulating tube 47 are slidably and sealedly connected;

[0063] The connecting slide rod 49 is inserted into the open end of the pressure regulating tube 50 and is slidably connected to the pressure regulating tube 50, and the other end of the connecting slide rod 49 is fixedly connected to the push-pull plate 48;

[0064] The pressure regulating spring is arranged between the inner bottom wall of the pressure regulating cylinder 50 and the top end of the connecting slide rod 49 .

[0065] A pressure-regulating spring is arranged between the connecting slide bar 49 and the pressure-regulating cylinder 50, so that the pressure-regulating cylinder 50 has a certain hysteresis during the movement. The connecting slide bar 49 first pulls the pressure-regulating spring during the movement, and the pressure-regulating spring stores a part of elastic potential energy. When the connecting slide bar 49 changes the moving direction, the elastic potential energy stored in the pressure-regulating spring continues to be released, so that the pressure-regulating cylinder 50 maintains the original moving direction and continues to move for a period of time. After the stored elastic potential energy is completely released, the connecting slide bar 49 has changed the moving direction and moved for a certain period of time. At this time, the spring will store the elastic potential energy again and start to drive the pressure-regulating cylinder 50 to complete the deceleration and return movement process in sequence, so that the pressure-regulating cylinder 50 can have a certain buffering process when moving in the pressure-regulating tube 47, thereby avoiding the collision between the pressure-regulating cylinder 50 and the end of the pressure-regulating tube 47.

[0066] In addition, the movement of the pressure regulating cylinder 50 will be affected by the air pressure in the pressure stabilizing box 44, further avoiding the situation where the air pressure in the pressure stabilizing box 44 changes suddenly and rapidly, and the air pressure in the control tube 45 changes rapidly, causing the air intake dust removal component 9 to suddenly increase in power, thereby ensuring the stable and uniform operation of the air intake dust removal component 9.

[0067] In some embodiments, reference Figures 8 to 10 The air intake dust removal component 9 includes a purification box 37 arranged on the side wall of the installation box 1, and a plurality of air inlets 39 are arranged on the purification box 37 to ensure sufficient air intake. An air extraction chamber is arranged in the purification box 37, and the air inlet 39 is connected to the air extraction chamber, and the air extraction chamber is connected to the air extraction pipe 25. A dust removal net 40 is arranged near the air inlet 39 in the air extraction chamber, and a dust removal component is arranged between the dust removal net 40 and the air inlet 39. The purification box 37 is located below the dust removal component and is slidably provided with a dust collection drawer 38;

[0068] The dust removal assembly includes a guide shaft 43 arranged parallel to the dust collection drawer 38, and a plurality of cleaning brushes 42 are slidably connected to the guide shaft 43. The plurality of cleaning brushes 42 are fixedly connected to the same supporting slider 41 at one end away from the dust collection drawer 38. A accommodating cavity for accommodating a control tube 45 is arranged in the supporting slider 41. A piston ring 46 is arranged at the pipe mouth of the control tube 45, and the piston ring 46 is slidably and sealingly connected to the inner wall of the accommodating cavity.

[0069] When the piston rod in the control tube 45 reciprocates following the change of air pressure in the control tube 45, the air pressure in the accommodating chamber changes accordingly. The change of air pressure in the accommodating chamber will drive the supporting slider 41 to reciprocate along the direction of the control tube 45, thereby driving multiple cleaning brushes 42 to move back and forth along the guide shaft 43, thereby realizing the cleaning function of the dust removal net 40. After the dust on the dust removal net 40 is cleaned, it will fall into the dust collection drawer 38. The dust collection drawer 38 can be pulled outward along the side wall of the vertical installation box 1, so that the staff can clean the accumulated dust in time.

[0070] In one embodiment, in order to ensure that the cleaning action of the cleaning brush 42 can reciprocate stably, a cleaning spring is sleeved on the end of the guide shaft 43 away from the control tube 45, one end of the cleaning spring is fixedly arranged on the inner wall of the purification box 37, and the other end of the cleaning spring is fixedly connected to the nearest cleaning brush 42. When the cleaning brush 42 moves in a direction away from the control tube 45, the cleaning spring is compressed, and when the cleaning brush 42 moves in a direction toward the control tube 45, the cleaning spring releases elastic potential energy to assist the cleaning brush 42 in resetting, which can ensure the stable resetting of the cleaning brush 42 on the one hand, and ensure that the air pressure in the control tube 45 can keep up with the air pressure change in the pressure stabilizing box 44 in time, so as to ensure the normal and efficient operation of the entire power transmission mechanism 10.

[0071] In some embodiments, reference Figure 11 to Figure 12A circulating water cooling unit 5 is arranged below the placement rack 4, and the circulating water cooling unit 5 includes a cold water tank 51 arranged on the bottom wall of the installation box 1. A plurality of water cooling pipes 54 are arranged on the placement rack 4 along the length of the placement rack 4. The plurality of water cooling pipes 54 are connected to a water supply pipe 52 at one end facing the cold water tank 51, and are connected to a collecting pipe 53 at one end facing away from the fixed pipe. A return pipe 55 is arranged between the collecting pipe 53 and the cold water tank 51. The water supply pipe 52 and the return pipe 55 are both connected to the cold water tank 51, and a water pump 57 is arranged on the pipe connecting the water supply pipe 52 and the cold water tank 51. A heat exchanger 56 is arranged at a position of the return pipe 55 close to the cold water tank 51.

[0072] In one embodiment, in order to save space, the water pump 57 is configured as a small submersible pump 57 , and the small submersible pump 57 is located inside the cold water tank 51 .

[0073] Under the action of the water pump 57, the water in the cold water tank 51 passes through the water supply pipe 52, the cold water pipe, the collecting pipe 53, the return pipe 55 and the heat exchanger 56 in sequence and then returns to the cold water tank 51 to form circulating water cooling. The water in the cold water pipe can contact the bottom of the circuit breaker 58 above the placement rack 4, thereby realizing water-cooled assisted heat dissipation. After the water completes the first heat exchange in the cold water pipe, the water flow will move along the return pipe 55 to the heat exchanger 56. After dissipating the absorbed heat to the external environment, the water flow will return to the cold water tank 51 again.

[0074] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0079] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A heat dissipation device for an electrical primary circuit breaker, characterized in that: It comprises an installation box with a box door, wherein the bottom wall of the installation box is provided with a plurality of heat dissipation holes, a placement rack is provided in the installation box parallel to the bottom wall, and a plurality of circuit breakers are fixedly arranged and arranged in parallel on the placement rack; a heat dissipation unit is provided above the circuit breaker, and the heat dissipation unit comprises an air-cooled power component, an air intake dust removal component and an adjustable heat dissipation component; The air-cooled power assembly is fixedly arranged on the top wall of the installation box, the air intake dust removal assembly is arranged on the outer side wall of the installation box, the air intake dust removal assembly is connected to the air-cooled power assembly through an air path, and the air-cooled power assembly is connected to the air intake dust removal assembly through a gas transmission; The adjustable heat dissipation assembly includes heat dissipation plates arranged on both sides of each circuit breaker, and a heat dissipation adjustment mechanism for controlling the distance between adjacent heat dissipation plates is arranged on the heat dissipation plate facing away from the box door, and the heat dissipation plate and the heat dissipation adjustment mechanism are fixedly connected, and a shunt box connected to the air path of the air-cooled power assembly can be slidably arranged between the air-cooled power assembly and the circuit breaker, the shunt box is movably connected to the heat dissipation adjustment mechanism, and the shunt box is connected to the air path of the circuit breaker with a plurality of blowing holes, and a telescopic power part is arranged between the blowing shunt box and the air-cooled power assembly.

2. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: The heat dissipation adjustment mechanism includes a sliding groove fixedly arranged on the inner wall of the installation box, the sliding groove opening is arranged toward one side of the diverter box, and the sliding groove is open to the side of the heat dissipation plate and is provided with a clearance opening, a plurality of sliding blocks are slidingly arranged in the sliding groove, each of the sliding blocks passes through the clearance opening and is fixedly connected to each heat dissipation plate in a one-to-one correspondence, a connecting guide rod is hinged on the sliding block, a hollow adjustment cylinder is hinged on the diverter box, the connecting guide rod is inserted into the adjustment cylinder, and a supporting spring is arranged between the end of the connecting guide rod and the bottom wall of the adjustment cylinder.

3. The heat dissipation device for an electrical primary circuit breaker according to claim 2, characterized in that: The sliding groove is provided with a limit stopper rod for preventing the sliding block from leaving the sliding groove, and the limit stopper rod is slidably connected with the sliding block.

4. The heat dissipation device for an electrical primary circuit breaker according to claim 2, characterized in that: The positions of two adjustment cylinders corresponding to adjacent heat sinks are arranged in an eight-shaped shape; the positions of two adjustment cylinders corresponding to the heat sinks on both sides of the same circuit breaker are arranged in an inverted eight-shaped shape.

5. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: The air blowing box is elastically connected with a shift lever on one side facing the circuit breaker; and a telescopic tube is arranged to connect the air path between the air blowing box and the air-cooled power assembly.

6. The heat dissipation device for an electric primary circuit breaker according to claim 5, characterized in that: The air-cooled power assembly includes a power box suspended on the top wall of the installation box, the power box is connected to the telescopic tube, and a fan is fixedly arranged on the top wall of the power box directly opposite to the telescopic tube, a servo motor is fixedly arranged on the top wall inside the installation box directly opposite to the fan, the fan includes a kinetic energy rod for inputting torque, the kinetic energy rod passes through the top wall of the power box and is fixedly connected to the output shaft of the servo motor, an exhaust pipe is connected to the power box, and the exhaust pipe is connected to the air path of the air intake dust removal assembly.

7. The heat dissipation device for an electric primary circuit breaker according to claim 6, characterized in that: The air-cooled power assembly also includes a power transmission mechanism for transmitting power to the air intake dust removal assembly, the power transmission mechanism includes an elliptical rotating wheel arranged on the output shaft of the servo motor, and push slides arranged parallel to the box door are symmetrically arranged on both sides of the elliptical rotating wheel, and each of the push slides is arranged parallel to the side away from the servo motor. A transmission control box is fixedly connected to the top wall of the installation box; Two transmission and control air cavities are symmetrically arranged in each of the transmission and control boxes, and each transmission and control air cavity is connected with a plurality of energy supply cylinders along the direction toward the push slide. A pressure transmission rod is slidingly and sealably connected in the energy supply cylinder, and one end of the pressure transmission rod facing away from the energy supply cylinder is fixedly connected to the push slide. Return springs are arranged on the outer sleeves of the plurality of energy supply cylinders on the same transmission and control box; A transverse control tube is provided in each of the control air cavities, and a pressure rod is slidably and sealedly connected in the transverse control tube. The pressure rods in the two control air cavities on the same side but in different control boxes are fixedly connected to the same push-pull plate. A hollow pressure-stabilizing box is provided on the push-pull plate facing away from the servo motor. The pressure-stabilizing box is fixedly connected to the top wall of the installation box, and several groups of pressure-regulating components are provided between the pressure-stabilizing box and the push-pull plate. The pressure-regulating component is connected to the pressure-stabilizing box, and a control tube is provided to connect the air path between the pressure control box and the air intake and dust removal component to supply air pressure power to the air intake and dust removal component.

8. The heat dissipation device for an electric primary circuit breaker according to claim 7, characterized in that: The pressure regulating assembly comprises a pressure regulating pipe, a pressure regulating cylinder, a connecting slide rod and a pressure regulating spring; The pressure regulating pipe is connected to the pressure stabilizing tank; The closed end of the pressure regulating cylinder is inserted into the pressure regulating pipe, and the pressure regulating cylinder and the pressure regulating pipe are slidably and sealedly connected; The connecting slide rod is inserted into the open end of the pressure regulating cylinder and is slidably connected to the pressure regulating cylinder, and the other end of the connecting slide rod is fixedly connected to the push-pull plate; The pressure regulating spring is arranged between the inner bottom wall of the pressure regulating cylinder and the top end of the connecting slide rod.

9. The heat dissipation device for an electric primary circuit breaker according to claim 7, characterized in that: The air intake dust removal assembly comprises a purification box arranged on the side wall of the installation box, a plurality of air inlets are arranged on the purification box, an air extraction chamber is arranged in the purification box, the air inlet is connected to the air extraction chamber, and the air extraction chamber is connected to the air extraction pipe, a dust removal net is arranged in the air extraction chamber near the air inlet, a dust removal assembly is arranged between the dust removal net and the air inlet, and the purification box is slidably provided with a dust collection drawer below the dust removal assembly; The dust removal assembly includes a guide shaft arranged parallel to the dust collecting drawer, a plurality of cleaning brushes are slidably connected to the guide shaft, and the plurality of cleaning brushes are fixedly connected to the same supporting slider at one end away from the dust collecting drawer, a accommodating cavity for accommodating the control tube is arranged in the supporting slider, a piston ring is arranged at the pipe mouth of the control tube, and the piston ring is slidably and sealingly connected to the inner wall of the accommodating cavity.

10. The heat dissipation device for an electric primary circuit breaker according to claim 1, characterized in that: A circulating water cooling unit is arranged below the placement rack, and the circulating water cooling unit includes a cold water tank arranged on the bottom wall of the installation box. A plurality of water cooling pipes are arranged on the placement rack along the length of the placement rack, and a plurality of water cooling pipes are connected to a water supply pipe at one end facing the cold water tank, and a plurality of water cooling pipes are connected to a collecting pipe at one end facing away from the fixed pipe. A return pipe is arranged between the collecting pipe and the cold water tank, and the water supply pipe and the return pipe are both connected to the cold water tank, and a water pump is arranged on the connecting pipe between the water supply pipe and the cold water tank, and a heat exchanger is arranged at a position of the return pipe toward the cold water tank.

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