A metal armored removable switch cabinet

Abstract

The present application discloses a metal armored removable switch cabinet, which relates to the technical field of switch cabinets, and includes an electric cabinet body, the side of the electric cabinet body is covered with an upper side plate and a lower side plate, and the electric cabinet body and the upper side plate and the lower side plate are all detachably fixedly connected; an inspection hole is provided on the upper side plate, and the position of the inspection hole corresponds to the position of the busbar room of the electric cabinet body, and an inspection door is hinged on the upper side plate, and the inspection door covers the inspection hole; a dust suction component is also provided above the electric cabinet body, and the dust suction component is used to absorb and collect dust in the electric cabinet body. The present application has the effect of accelerating the inspection efficiency of the electric cabinet body and improving the cleanliness inside the electric cabinet body.

Description

Technical Field

[0001] The present application relates to the technical field of switch cabinets, and in particular to a metal armored removable switch cabinet. Background Art

[0002] As an important equipment in the substation, the metal armored removable switchgear plays the role of opening and closing the power line, which is of great significance to the safe and reliable operation of the power system.

[0003] Metal armored removable switch cabinet is generally a metal cabinet structure. The large side panel of the cabinet is a whole plate structure. The cabinet is equipped with a busbar room, instrument room, trolley room and cable room. The external line first enters the horizontal busbar in the busbar room for connection, and then is connected to the sub-control switches and branches at all levels according to needs.

[0004] Since the large side panel of the cabinet is set as a whole panel structure, and the cross-bus position of the busbar room needs regular maintenance, there is a problem of cumbersome and inconvenient disassembly and assembly of the large side panel during maintenance. After the entire large side panel is removed, a large amount of dust will enter the cabinet, affecting the cleanliness inside the cabinet. Summary of the invention

[0005] In order to improve the problem that the large side panels of the metal armored removable switch cabinet are inconvenient to install and remove when the cross-connecting busbar is repaired, and a large amount of dust enters the cabinet body after removal, the present application provides a metal armored removable switch cabinet.

[0006] The present application provides a metal-clad removable switch cabinet, which adopts the following technical solution:

[0007] A metal armored removable switch cabinet comprises an electric cabinet body, the side of the electric cabinet body is covered with an upper side plate and a lower side plate, the electric cabinet body and the upper side plate and the lower side plate are all detachably fixedly connected; an inspection hole is opened on the upper side plate, the position of the inspection hole corresponds to the position of the busbar room of the electric cabinet body, an inspection door is hinged on the upper side plate, and the inspection door covers the inspection hole; a dust suction component is also arranged above the electric cabinet body, and the dust suction component is used to absorb and collect dust in the electric cabinet body.

[0008] By adopting the above technical solution, when inspecting the horizontal busbar of the electric cabinet body, the maintenance personnel can open the inspection door and perform maintenance at the location of the inspection hole without disassembling the entire side panel, thereby improving work efficiency. In addition, the area of ​​the inspection door is much smaller than the area of ​​the entire side panel, which reduces the amount of dust entering the electric cabinet body and improves the cleanliness of the inside of the electric cabinet body.

[0009] Optionally, the dust suction assembly includes an outer cover fixedly connected to the electric cabinet body, a dust suction pipe passing through the outer cover and connected to the inner cavity of the busbar chamber, a dust suction motor fixedly installed inside the dust suction pipe, a dust suction fan connected to the output shaft of the dust suction motor, and a filter arranged on the side of the dust suction fan away from the dust suction motor; a dust shield plate is also provided at the connection point between the dust suction pipe and the busbar chamber, a dust outlet groove is opened on one side of the dust suction pipe, and the dust shield plate is embedded in the dust outlet groove and is slidably connected to the dust suction pipe.

[0010] By adopting the above technical solution, the dust suction motor drives the dust suction fan to rotate, generating negative pressure suction force to collect the dust inside the electric cabinet body. During suction, the dust shield slides out of the dust suction pipe to make way for the dust suction channel; after the suction is completed, the dust suction motor is turned off, and the dust shield slides into the dust suction pipe to collect the dust in a centralized manner, further improving the cleanliness inside the electric cabinet body.

[0011] Optionally, a cooling component is further provided above the electric cabinet body, and the cooling component is provided at an end of the dust suction pipe away from the electric cabinet body.

[0012] By adopting the above technical solution, the cooling component cools down the temperature generated when the electric cabinet body is in operation, thereby ensuring the safe and reliable operation of the electric cabinet body and increasing the service life of the electric cabinet body.

[0013] Optionally, the cooling component includes a coolant tank fixedly connected to the inner part of the outer cover and connected to one end of the dust suction pipe, a reciprocating screw rotatably connected to the inner part of the coolant tank, a spiral blade fixed to one end of the reciprocating screw and extending into the inner part of the dust suction pipe, a threaded sleeve mounted on the reciprocating screw, an extrusion plate slidably connected to the inner part of the coolant tank and fixedly connected to the threaded sleeve, and a cooling pipe connected to the bottom of the coolant tank and arranged inside the electric cabinet body.

[0014] By adopting the above technical solution, the wind force discharged from the dust suction pipe drives the spiral blade to rotate, thereby driving the extrusion plate to slide back and forth through the cooperation of the reciprocating screw and the threaded sleeve. When the extrusion plate moves downward, it squeezes the coolant into the cooling pipe, thereby cooling the electric cabinet body and improving the operating reliability of the electric cabinet body.

[0015] Optionally, both ends of the cooling pipe are hose structures, and the middle part is an expandable elastic tube structure; a liquid outlet valve is provided at the end position where the cooling pipe is connected to the bottom end of the coolant tank; the other end of the cooling pipe is also connected to the interior of the coolant tank, and a liquid return valve is provided on the other end of the cooling pipe.

[0016] By adopting the above technical scheme, when the extrusion plate moves downward, the liquid outlet valve opens, the liquid return valve closes, the coolant enters the cooling pipe, absorbs heat and cools the electric cabinet body, and the expansion elastic section of the cooling pipe expands; when the extrusion plate moves upward, the liquid outlet valve closes, the liquid return valve opens, the expansion elastic section of the cooling pipe shrinks and resets, and the coolant flows into the coolant tank to achieve circulation reflux, thereby improving the utilization rate of the coolant and enhancing the cooling effect.

[0017] Optionally, the extrusion plate is provided with an exhaust cavity and a liquid return cavity in sequence from top to bottom, and an air inlet hole is opened at the upper end of the extrusion plate, the air inlet hole is connected to the exhaust cavity, and the exhaust cavity is also connected to an exhaust pipe; the other end of the cooling pipe is connected to the liquid return cavity, and a liquid return hole is also opened on the liquid return cavity, and the liquid return hole is connected to the interior of the coolant tank.

[0018] By adopting the above technical scheme, the airflow flowing out of the dust removal pipe eventually enters the exhaust cavity from the exhaust hole, and flows out from the exhaust pipe to the outside of the electric cabinet body, and the coolant refluxed from the cooling pipe eventually enters the return liquid cavity, and flows back to the coolant tank from the reflux hole; both flow inside the extrusion plate at the same time, and a certain amount of heat exchange is carried out. The airflow takes away part of the heat of the coolant, which speeds up the cooling efficiency of the coolant itself and improves the cooling effect.

[0019] Optionally, the air inlet hole and the liquid return hole on the extrusion plate are located at one end of the extrusion plate, and the exhaust pipe and the cooling pipe are located at the other end of the extrusion plate.

[0020] By adopting the above technical solution, the airflow entering the exhaust chamber and the coolant entering the liquid return chamber flow relatively in opposite directions, thereby improving the cooling effect of the coolant and further strengthening the temperature reduction effect.

[0021] Optionally, a clamping plate is fixedly connected to the inside of the electric cabinet body, and the clamping plate is arranged on the outside of the expansion elastic section of the cooling pipe; a heat dissipation shaft is rotatably connected to the clamping plate, one end of the heat dissipation shaft extends into the interior of the cooling pipe, and a power blade is fixedly connected to the end; a heat dissipation blade is fixedly connected to the other end of the heat dissipation shaft.

[0022] By adopting the above technical solution, when the coolant flows in the cooling pipe, it drives the power blades to rotate, and through the transmission of the heat dissipation shaft, the heat dissipation blades are driven to rotate, which plays a role in heat dissipation in the electric cabinet body, improves air flow, and enhances the cooling effect.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the upper side panel, the lower side panel and the inspection door, when inspecting the horizontal busbar of the electric cabinet body, the maintenance personnel can open the inspection door and perform maintenance at the location of the inspection hole without disassembling the entire side panel, thereby improving work efficiency. In addition, the area of ​​the inspection door is much smaller than the area of ​​the entire side panel, which reduces the amount of dust entering the electric cabinet body and improves the cleanliness inside the electric cabinet body.

[0025] 2. By setting up the dust suction component, the dust suction motor drives the dust suction fan to rotate, generating negative pressure suction force to collect the dust inside the electric cabinet body. During suction, the dust shield slides out of the dust suction pipe to make way for the dust suction channel; after the suction is completed, the dust suction motor is turned off, and the dust shield slides into the dust suction pipe to collect the dust in a centralized manner, further improving the cleanliness inside the electric cabinet body.

[0026] 3. By setting up a cooling component, the wind force discharged from the dust suction pipe drives the spiral blade to rotate, thereby driving the extrusion plate to slide back and forth through the cooperation of the reciprocating screw and the threaded sleeve. When the extrusion plate moves downward, it squeezes the coolant into the cooling pipe, thereby cooling the electric cabinet body and improving the operating reliability of the electric cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a metal armored removable switch cabinet in an embodiment of the present application;

[0028] Figure 2 is a structural cross-sectional view of a metal-clad removable switch cabinet in an embodiment of the present application;

[0029] Figure 3 is a schematic structural diagram of a dust collection assembly in an embodiment of the present application;

[0030] Figure 4 It is a schematic diagram of the structure of the heat dissipation blade in the embodiment of the present application.

[0031] Description of the reference numerals: 1. cabinet body; 11. busbar room; 12. instrument room; 13. trolley room; 14. cable room; 15. upper side plate; 16. lower side plate; 17. inspection hole; 18. inspection door; 19. card board; 2. dust suction assembly; 21. outer cover; 22. dust suction pipe; 23. dust suction motor; 24. dust suction fan; 25. filter screen; 26. dust shield; 27. dust outlet slot; 28. Sealing cover; 3. Cooling component; 31. Coolant tank; 32. Reciprocating screw; 33. Spiral blade; 34. Threaded sleeve; 35. Extrusion plate; 351. Exhaust chamber; 352. Liquid return chamber; 353. Air inlet; 354. Liquid return hole; 36. Cooling pipe; 361. Heat dissipation shaft; 362. Power blade; 363. Heat dissipation blade; 37. Liquid outlet valve; 38. Liquid return valve; 39. Exhaust pipe. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a metal armored removable switch cabinet, referring to Figure 1 and Figure 2 , including an electric cabinet body 1, the inside of which is provided with a busbar room 11, an instrument room 12, a trolley room 13 and a cable room 14. A dust collecting component 2 is provided at the top of the electric cabinet body 1, and the dust collecting component 2 is used to perform dust collection on the electric cabinet body 1; a cooling component 3 is also provided on one side of the dust collecting component 2, and the cooling component 3 is used to perform temperature reduction on the electric cabinet body 1.

[0034] The side of the electric cabinet body 1 is covered with an upper side plate 15 and a lower side plate 16. The electric cabinet body 1 and the upper side plate 15 are detachably fixedly connected by bolts, and the electric cabinet body 1 and the lower side plate 16 are detachably fixedly connected by bolts. An inspection hole 17 is provided on the upper side plate 15. The position of the inspection hole 17 corresponds to the busbar chamber 11, which is convenient for the staff to inspect the cross-connected busbar of the busbar chamber 11. An inspection door 18 is covered at the position of the inspection hole 17. One side of the inspection door 18 is hinged to the upper side plate 15. After the inspection door 18 is closed, the other side of the inspection door 18 is bolted to the upper side plate 15.

[0035] Reference Figure 2 and Figure 3 The dust collection assembly 2 includes an outer cover 21, which is fixedly arranged at the top of the electric cabinet body 1. The outer cover 21 is a cavity structure, and a dust collection pipe 22 is passed through the outer cover 21, and one end of the dust collection pipe 22 is connected to the inner cavity of the busbar chamber 11. A dust collection motor 23 is fixedly installed inside the dust collection pipe 22, and a dust collection fan 24 is fixedly connected to the output shaft of the dust collection motor 23; a filter screen 25 is also fixedly connected inside the dust collection pipe 22, and the filter screen 25 is located on the side of the dust collection fan 24 away from the dust collection motor 23. A dust shield 26 is also provided on the side of the filter screen 25 facing the busbar chamber 11, and a dust outlet groove 27 is opened on the outer side surface of the dust suction pipe 22. The dust shield 26 is correspondingly embedded in the dust outlet groove 27, and the dust shield 26 and the dust suction pipe 22 are slidably connected; a sealing cover 28 is bolted to the end of the dust shield 26, and the sealing cover 28 is a retractable cover structure. One end of the sealing cover 28 is fixedly connected to the outer side wall of the dust suction pipe 22, and the sealing cover 28 is used to cover and seal the dust outlet groove 27.

[0036] When vacuuming the electric cabinet body 1, the dust shield 26 is pulled toward the outside of the dust suction pipe 22 to make way for the dust suction passage; the dust suction motor 23 is started, and the dust suction fan 24 is driven to rotate, thereby generating a negative pressure vacuum at one end of the dust suction fan 24 facing the busbar chamber 11. The dust in the busbar chamber 11 enters the dust suction pipe 22 under the action of air pressure and is blocked by the filter 25. The clean air passing through the filter 25 is discharged to the other end of the dust suction pipe 22.

[0037] In order to further enhance the dust suction effect and promote the air flow inside the electric cabinet body 1, ventilation holes are provided on the electric cabinet body 1, which are connected to the outside, and a filter screen 25 is fixed to the ventilation hole for dust prevention. Before the dust suction motor 23 stops, the dust shield 26 is pushed to block the dust suction channel, and then the dust suction motor 23 is turned off, and the dust sucked into the dust suction pipe 22 loses suction and gradually falls from the filter screen 25 to the dust shield 26, and finally the bolt connection between the dust shield 26 and the sealing cover 28 is released, and the dust shield 26 is pulled out to collect and process the dust.

[0038] Reference Figure 2 and Figure 3 The cooling component 3 includes a coolant tank 31, which is fixedly arranged inside the outer cover 21 and located at the end of the dust suction pipe 22 away from the busbar chamber 11, and the dust suction pipe 22 and the coolant tank 31 are connected. A reciprocating screw 32 is rotatably connected in the center of the coolant tank 31, one end of the reciprocating screw 32 extends into the dust suction pipe 22, and a spiral blade 33 is fixedly connected to the end of the reciprocating screw 32; a corresponding threaded sleeve 34 is sleeved on the reciprocating screw 32, and an extrusion plate 35 is fixedly connected to the threaded sleeve 34, and the extrusion plate 35 and the coolant tank 31 are slidably arranged. A cooling pipe 36 is connected to the bottom of the coolant tank 31, and the cooling pipe 36 extends into the interior of the electric cabinet body 1.

[0039] The two ends of the cooling pipe 36 are hose structures, and the connection between the cooling pipe 36 and the bottom of the coolant tank 31 is provided with a liquid outlet valve 37, which is used to control the opening and closing of the coolant end; the middle part of the coolant is an expansion elastic tube structure, which has a certain elastic deformation and reset ability, and a clamping plate 19 is provided on the outside of the expansion elastic section of the cooling pipe 36. The cross section of the clamping plate 19 is L-shaped, and the clamping plate 19 is fixed to the inner side wall of the electric cabinet body 1. After the cooling pipe 36 is circulated at the diagonal line in the electric cabinet body 1, the other end of the cooling pipe 36 is connected to the coolant tank 31 to play a circulation reflux role.

[0040] The extrusion plate 35 is provided with an exhaust cavity 351 and a liquid return cavity 352 from top to bottom, and an air inlet hole 353 is also provided on the upper part of the extrusion plate 35. The air inlet hole 353 is connected to the exhaust cavity 351, and one side of the exhaust cavity 351 is also connected to an exhaust pipe 39. The airflow blown by the dust suction pipe 22 finally enters the exhaust cavity 351 from the air inlet hole 353, and finally flows out from the exhaust pipe 39. The air inlet hole 353 and the exhaust pipe 39 are respectively located at the two opposite end positions of the extrusion plate 35, so as to ensure that the airflow can flow in the exhaust cavity 351.

[0041] One end of the cooling pipe 36 connected to the coolant tank 31 is connected to the liquid return cavity 352 of the extrusion plate 35, and a liquid return valve 38 is provided at one end of the cooling pipe 36 close to the extrusion plate 35. The liquid return valve 38 is used to control the opening and closing of the end of the cooling pipe 36. The extrusion plate 35 is also provided with a liquid return hole 354, which is connected to the liquid return cavity 352.

[0042] The airflow driven by the dust suction motor 23 and the dust suction fan 24 flows from the dust suction pipe 22 into the coolant tank 31, and during the flow of the airflow, the spiral blade 33 is driven to rotate, and the spiral blade 33 drives the reciprocating screw 32 to rotate, thereby driving the extrusion plate 35 to slide up and down in the cooling box through the threaded sleeve 34. The coolant is poured into the coolant tank 31 and is located below the extrusion plate 35. When the extrusion plate 35 moves downward, the liquid outlet valve 37 is opened and the liquid return valve 38 is closed. The coolant enters the cooling pipe 36 under the extrusion action of the extrusion plate 35, and the expansion elastic section of the cooling pipe 36 gradually expands and becomes larger until it contacts the inner side of the card plate 19; when the coolant flows in the cooling pipe 36, it takes away part of the heat of the electric cabinet body 1, thereby playing a cooling role.

[0043] When the extrusion plate 35 moves to the end of the reciprocating screw 32 and changes its direction of movement to move upward, the liquid outlet valve 37 is closed and the liquid return valve 38 is opened, and the expanded elastic section of the cooling tube 36 is reset and retracted. Under the action of the pressure difference, the coolant in the cooling tube 36 flows back from one end of the cooling tube 36 to the reflux cavity of the extrusion plate 35, and finally flows into the coolant tank 31 from the reflux hole.

[0044] The air inlet hole 353 and the liquid return hole 354 on the extrusion plate 35 are arranged at one end of the extrusion plate 35, and the connection position of the exhaust pipe 39 and the cooling pipe 36 is arranged at the other end of the extrusion plate 35. That is, the gas flowing out of the dust suction pipe 22 flows from left to right in the exhaust cavity 351, and the refluxed coolant flows from right to left in the reflux cavity. The two flow in opposite directions, and a certain degree of heat exchange is performed through the extrusion plate 35, so that the airflow takes away part of the heat of the coolant, accelerates the cooling of the coolant, and then the airflow flows out to the outside of the electric cabinet body 1.

[0045] Reference Figure 3 and Figure 4In order to further enhance the cooling effect, a heat dissipation shaft 361 is provided on the card plate 19, and the heat dissipation shaft 361 is rotatably connected to the card plate 19, and the two ends of the heat dissipation shaft 361 extend to the two sides of the card plate 19 respectively. One end of the heat dissipation shaft 361 extends into the interior of the cooling tube 36, and a power blade 362 is fixedly connected to the end surface of the heat dissipation shaft 361 extending into the interior of the cooling tube 36; the end of the heat dissipation shaft 361 away from the power blade 362 extends into the cavity of the electric cabinet body 1, and a heat dissipation blade 363 is fixedly connected. When the coolant flows in the cooling tube 36, the power blade 362 is driven to rotate by the power of the water flow, thereby driving the heat dissipation shaft 361 to rotate. When the heat dissipation shaft 361 rotates, the heat dissipation blade 363 follows the movement and blows the air in the electric cabinet body 1, thereby enhancing the flow and improving the heat dissipation effect.

[0046] The implementation principle of the embodiment of the present application is as follows: when inspecting the horizontal busbar in the electric cabinet body 1, the inspection door 18 is opened, and the operator can perform inspection from the inspection hole 17 without dismantling the side panel, thereby improving work efficiency; after the inspection is completed and the inspection door 18 is closed, the dust collection component 2 performs dust collection on the electric cabinet body 1, and the cooling component 3 operates at the same time to cool the electric cabinet body 1, thereby ensuring the working environment of the electric cabinet body 1 and increasing the service life of the electric cabinet body 1.

[0047] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A metal armored removable switch cabinet, characterized in that: The invention comprises an electric cabinet body (1), wherein the side of the electric cabinet body (1) is covered with an upper side plate (15) and a lower side plate (16), wherein the electric cabinet body (1) and the upper side plate (15) and the lower side plate (16) are all detachably fixedly connected; an inspection hole (17) is provided on the upper side plate (15), wherein the position of the inspection hole (17) corresponds to the position of the busbar chamber (11) of the electric cabinet body (1); an inspection door (18) is hingedly connected to the upper side plate (15), wherein the inspection door (18) covers the inspection hole (17); the electric cabinet body (1) A dust collection assembly (2) is also provided above the cabinet body (1), and the dust collection assembly (2) is used to collect dust in the cabinet body (1); the dust collection assembly (2) comprises an outer cover (21) fixedly connected to the cabinet body (1), a dust collection pipe (22) passing through the outer cover (21) and communicating with the inner cavity of the busbar chamber (11), a dust collection motor (23) fixedly installed inside the dust collection pipe (22), a dust collection fan (24) connected to the output shaft of the dust collection motor (23), and a dust collection fan (24) provided on a side of the dust collection fan (24) away from the dust collection motor (23). a filter screen (25); a dust shield (26) is further provided at the connection point between the dust suction pipe (22) and the busbar chamber (11); a dust outlet groove (27) is provided on one side of the dust suction pipe (22); the dust shield (26) is embedded in the dust outlet groove (27) and is slidably connected to the dust suction pipe (22); a cooling component (3) is further provided above the electric cabinet body (1); the cooling component (3) is provided at one end of the dust suction pipe (22) away from the electric cabinet body (1); the cooling component (3) comprises a cooling element (3) fixedly connected to the inside of the outer cover (21) and A coolant tank (31) connected to one end of the dust suction pipe (22), a reciprocating screw (32) rotatably connected to the inside of the coolant tank (31), a spiral blade (33) fixed to one end of the reciprocating screw (32) and extending into the inside of the dust suction pipe (22), a threaded sleeve (34) sleeved on the reciprocating screw (32), an extrusion plate (35) slidably connected to the inside of the coolant tank (31) and fixedly connected to the threaded sleeve (34), and a cooling pipe (36) connected to the bottom of the coolant tank (31) and arranged inside the electric cabinet body (1).

2. The metal-clad removable switch cabinet according to claim 1, characterized in that: The two ends of the cooling pipe (36) are hose structures, and the middle part is an expansion elastic pipe structure; a liquid outlet valve (37) is provided at the end position where the cooling pipe (36) and the bottom end of the coolant tank (31) are connected; the other end of the cooling pipe (36) is also connected to the interior of the coolant tank (31), and a liquid return valve (38) is provided at the other end of the cooling pipe (36).

3. The metal-clad removable switch cabinet according to claim 2, characterized in that: The extrusion plate (35) is provided with an exhaust cavity (351) and a liquid return cavity (352) in sequence from top to bottom; an air inlet hole (353) is provided at the upper end of the extrusion plate (35); the air inlet hole (353) is communicated with the exhaust cavity (351); the exhaust cavity (351) is also communicated with an exhaust pipe (39); the other end of the cooling pipe (36) is communicated with the liquid return cavity (352); the liquid return cavity (352) is also provided with a liquid return hole (354); the liquid return hole (354) is communicated with the interior of the cooling liquid tank (31).

4. The metal-clad removable switch cabinet according to claim 3, characterized in that: The air inlet hole (353) and the liquid return hole (354) on the extrusion plate (35) are located at one end of the extrusion plate (35), and the exhaust pipe (39) and the cooling pipe (36) are located at the other end of the extrusion plate (35).

5. The metal-clad removable switch cabinet according to claim 4, characterized in that: A clamping plate (19) is fixedly connected to the interior of the electric cabinet body (1), and the clamping plate (19) is arranged outside the expansion elastic section of the cooling tube (36); a heat dissipation shaft (361) is rotatably connected to the clamping plate (19), one end of the heat dissipation shaft (361) extends into the interior of the cooling tube (36), and a power blade (362) is fixedly connected to the end thereof; a heat dissipation blade (363) is fixedly connected to the other end of the heat dissipation shaft (361).

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