A high and low voltage switch cabinet structure that is easy to dissipate heat

Abstract

A high and low voltage switch cabinet structure that is easy to dissipate heat belongs to the technical field of switch cabinets. In order to solve the technical problem that the heat dissipation structure of the existing high and low voltage switch cabinets is not effective and easily causes failures of the high and low voltage switch cabinets; the present invention arranges a fan, a first air guide plate, a second air guide plate, fan blades and a partition. When the temperature of an electric equipment part exceeds a threshold, the fan and the motor are started by the control unit, so that the first air guide plate and the second air guide plate are rotated, so that the airflow can flow in the first air duct, the second air duct, the third air duct, the fourth air duct, the fifth air duct and the sixth air duct. The airflow can take away the heat of the electric equipment part and discharge it through the air outlet, so as to achieve uniform heat dissipation of the electric equipment part and avoid local heat accumulation affecting the use of the high and low voltage switch cabinets.

Description

Technical Field

[0001] The invention relates to the technical field of high and low voltage switch cabinets, and in particular to a high and low voltage switch cabinet structure that is convenient for heat dissipation. Background Art

[0002] High and low voltage switchgear is a device used to connect high and low voltage cables. The high voltage is transmitted through the high voltage cabinet, and then stepped down by the transformer to the low voltage cabinet. The low voltage cabinet is then transferred to the distribution boxes of each power user. The switchgear is usually composed of a series of electrical equipment such as circuit breakers.

[0003] The electrical equipment inside the high and low voltage switch cabinets generates heat accumulation when in use, and the heat is usually dissipated by using an air cooling structure. The existing heat dissipation mechanism inside the high and low voltage switch cabinets usually dissipates heat by taking away the heat generated by the electrical equipment through the airflow blown by the fan. However, the airflow blown by the fan has a relatively single direction, which makes the fan's heat dissipation of the high and low voltage switch cabinets uneven, which will affect the use of the electrical equipment and easily cause the high and low voltage switch cabinets to malfunction. Summary of the invention

[0004] The purpose of the present invention is to provide a high and low voltage switch cabinet structure that is easy to dissipate heat, which can solve the problem that the heat dissipation structure of the existing high and low voltage switch cabinets mentioned in the above background technology is not good and easily causes failures of the high and low voltage switch cabinets.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high- and low-voltage switch cabinet structure that is convenient for heat dissipation, comprising a cabinet body and a cabinet door rotatably arranged on one side of the cabinet body, an electric power equipment part is fixedly installed on the inner wall of one side of the cabinet body, and the electric power equipment part is provided with three groups, a wind force guide component is embedded in one side of the cabinet body, a fan is embedded in the upper end of the cabinet body, a partition and a control part are fixedly arranged at intervals on the inner wall of the cabinet body, a temperature sensor is arranged on one side of the electric power equipment part, an air outlet is opened near the lower end edge of one side of the cabinet body, the temperature sensor is used to detect the temperature, the partition is used to separate the space, the fan is used to blow out the airflow, and the wind force guide component is used to guide the airflow blown out by the fan;

[0006] The wind force guide component comprises a first guide component, a speed adjustment component and a second guide component which are arranged at intervals on the inner wall of the cabinet. The first guide component, the speed adjustment component and the second guide component are arranged in a triangle. The first guide component, the speed adjustment component and the second guide component are sleeved with a first transmission belt on their outer surfaces, and a clearance hole for the first transmission belt to move is opened on the power equipment part. A wind force component is arranged on the inner wall of the cabinet. A pulley transmission part is arranged between the speed adjustment component and the wind force component. The first transmission belt is used for transmission. The first guide component is used to drive the speed adjustment component and the second guide component to rotate through the first transmission belt. The pulley transmission part is used for transmission, so that the speed adjustment component can drive the wind force component to rotate. The speed adjustment component is used to increase the rotation speed of the wind force component. The wind force component, the second guide component and the first guide component are all used to guide the airflow.

[0007] A first air duct, a second air duct, a third air duct, a fourth air duct, a fifth air duct and a sixth air duct are distributed inside the cabinet. The first air duct is arranged below the fan. Two groups of second air ducts are arranged. The two groups of second air ducts are respectively connected and arranged between below the first air duct and the inner walls on both sides of the cabinet. The third air duct is arranged between the two groups of power equipment parts at the upper position. The fifth air duct is arranged between the two groups of power equipment parts at the lower position, and both ends of the third air duct and the fifth air duct are connected with the second air duct. The fourth air duct is connected and arranged between the third air duct and the fifth air duct. The sixth air duct is connected and arranged below the second air duct.

[0008] Furthermore, the first guide component includes a motor embedded in one side of the cabinet and a first connecting rod fixedly connected to the output end of the motor, and the motor, temperature sensor and fan are all electrically connected to the control unit, the other end of the first connecting rod is fixedly connected to the first air guide plate, and the outer surface of the first connecting rod is fixedly sleeved with a driving wheel, and the motor is used to drive the first air guide plate and the driving wheel to rotate.

[0009] Furthermore, the first air guide plate is arranged below the fan, and the first air guide plate is used to guide the airflow blown out by the fan.

[0010] Furthermore, the speed adjustment component includes a second connecting rod rotatably connected to the inner wall of the cabinet and a first driven wheel fixedly sleeved on the outer surface of the second connecting rod, the second guide component includes a third connecting rod rotatably connected to the inner wall of the cabinet and a second driven wheel fixedly sleeved on the outer surface of the third connecting rod, the first transmission belt is sleeved on the outer surfaces of the driving wheel, the first driven wheel and the second driven wheel, and the first transmission belt is used for transmission.

[0011] Furthermore, one end of the third connecting rod is fixedly connected to a second air guide plate, and the second air guide plate is arranged below the fourth air duct, and the second air guide plate is used to guide the downward airflow in the fourth air duct.

[0012] Furthermore, one end of the second connecting rod is fixedly connected to the first gear, the outer surface of the first gear is meshingly connected to the second gear, one end of the second gear is fixedly connected to the fourth connecting rod, and one end of the fourth connecting rod is rotatably connected to the inner wall of the cabinet, and the radius of the first gear is six times the radius of the second gear.

[0013] Furthermore, the wind power component includes a fifth connecting rod with one end rotatably connected to the inner wall of the cabinet and a first bevel gear fixedly connected to the other end of the fifth connecting rod. The pulley transmission part is arranged on the outer surfaces of the fifth connecting rod and the fourth connecting rod, and the second gear is used to drive the first bevel gear to rotate.

[0014] Furthermore, a support plate is fixedly connected to the inner wall of the cabinet, a transmission rod is rotatably connected to the support plate from top to bottom, a fan blade is fixedly connected to the lower end of the transmission rod, and the fan blade is arranged above the fourth air duct, and the fan blade is used to blow the airflow into the fourth air duct.

[0015] Furthermore, a second bevel gear is fixedly connected to the upper end of the transmission rod, and the second bevel gear is meshingly connected with the first bevel gear, and the second bevel gear is used for transmission.

[0016] Furthermore, the partitions are fixedly arranged in three groups, and the three groups of partitions correspond to the positions of the three groups of electric power equipment parts respectively, and the partitions are used to block the passage of airflow.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes a high and low voltage switch cabinet structure that is easy to dissipate heat. Through the arrangement of a fan, a first air guide plate, a second air guide plate, fan blades and a partition, when the temperature of an electric power equipment part exceeds a threshold value, the control unit controls the fan and the motor to start, so that the first air guide plate and the second air guide plate both rotate, so that the airflow can flow in the first air duct, the second air duct, the third air duct, the fourth air duct, the fifth air duct and the sixth air duct, and the airflow can take away the heat of the electric power equipment part and discharge it through the air outlet, thereby achieving uniform heat dissipation of the electric power equipment part and avoiding local heat accumulation that affects the use of the high and low voltage switch cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the wind guide assembly, fan and partition structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the wind guide assembly of the present invention;

[0022] Figure 4 It is a schematic structural diagram of the first guide component, the speed adjustment assembly and the second guide component of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the first gear, the fourth connecting rod and the second gear of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the wind power component of the present invention;

[0025] Figure 7 This is a diagram of the heat dissipation working state of the present invention.

[0026] In the figure: 1, cabinet; 11, first air duct; 12, second air duct; 13, third air duct; 14, fourth air duct; 15, fifth air duct; 16, sixth air duct; 2, cabinet door; 3, power equipment unit; 4, wind force guide assembly; 41, first guide member; 411, motor; 412, first connecting rod; 413, first air guide plate; 414, driving wheel; 42, speed adjustment assembly; 421, first driven wheel; 422, second connecting rod; 423, first gear; 424 , fourth connecting rod; 425, second gear; 43, second guide component; 431, third connecting rod; 432, second driven wheel; 433, second wind guide plate; 44, first transmission belt; 45, pulley transmission part; 46, wind force component; 461, fifth connecting rod; 462, first bevel gear; 463, second bevel gear; 464, support plate; 465, transmission rod; 466, fan blade; 5, fan; 6, partition; 7, temperature sensor; 8, control unit; 9, air outlet. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 3 and Figure 7 As shown, a high and low voltage switch cabinet structure that is convenient for heat dissipation comprises a cabinet body 1 and a cabinet door 2 rotatably arranged on one side of the cabinet body 1, an electric power equipment part 3 is fixedly installed on the inner wall of one side of the cabinet body 1, and the electric power equipment part 3 is provided with three groups, a wind force guide component 4 is embedded in one side of the cabinet body 1, a fan 5 is embedded in the upper end of the cabinet body 1, a partition 6 and a control part 8 are fixedly arranged on the inner wall of the cabinet body 1 at intervals, a temperature sensor 7 is arranged on one side of the electric power equipment part 3, an air outlet 9 is opened near the lower end edge of one side of the cabinet body 1, the temperature sensor 7 is used to detect the temperature, the partition 6 is used to separate the space, the fan 5 is used to blow out the airflow, and the wind force guide component 4 is used to guide the airflow blown out by the fan 5;

[0029] The wind force guide component 4 includes a first guide component 41, a speed adjustment component 42, and a second guide component 43 which are arranged at intervals on the inner wall of the cabinet 1. The first guide component 41, the speed adjustment component 42, and the second guide component 43 are arranged in a triangular shape. The first guide component 41, the speed adjustment component 42, and the second guide component 43 are sleeved with a first transmission belt 44 on the outer surfaces thereof, and a clearance hole for the first transmission belt 44 to move is opened on the power equipment part 3. A wind force component 46 is arranged on the inner wall of the cabinet 1, and a pulley transmission part 45 is arranged between the speed adjustment component 42 and the wind force component 46. The first transmission belt 44 is used for transmission, and the first guide component 41 is used for driving the speed adjustment component 42 and the second guide component 43 to rotate through the first transmission belt 44. The pulley transmission part 45 is used for transmission, so that the speed adjustment component 42 can drive the wind force component 46 to rotate, and the speed adjustment component 42 is used to increase the rotation speed of the wind force component 46. The wind force component 46, the second guide component 43, and the first guide component 41 are all used for guiding the airflow;

[0030] A first air duct 11, a second air duct 12, a third air duct 13, a fourth air duct 14, a fifth air duct 15 and a sixth air duct 16 are distributed inside the cabinet 1. The first air duct 11 is arranged below the fan 5. Two groups of second air ducts 12 are arranged. The two groups of second air ducts 12 are respectively connected and arranged between below the first air duct 11 and the inner walls on both sides of the cabinet 1. The third air duct 13 is arranged between the two groups of power equipment parts 3 at the upper position, and the fifth air duct 15 is arranged between the two groups of power equipment parts 3 at the lower position, and both ends of the third air duct 13 and the fifth air duct 15 are connected with the second air duct 12. The fourth air duct 14 is connected and arranged between the third air duct 13 and the fifth air duct 15. The sixth air duct 16 is connected and arranged below the second air duct 12.

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] See also Figure 4-Figure 6 The first guide component 41 includes a motor 411 embedded in one side of the cabinet 1 and a first connecting rod 412 fixedly connected to the output end of the motor 411, and the motor 411, the temperature sensor 7 and the fan 5 are all electrically connected to the control unit 8, and the other end of the first connecting rod 412 is fixedly connected to the first air guide plate 413, and the outer surface of the first connecting rod 412 is fixedly sleeved with a driving wheel 414, the motor 411 is used to drive the first air guide plate 413 and the driving wheel 414 to rotate, and the first connecting rod 412 is used for transmission.

[0033] The first air guide plate 413 is disposed below the fan 5 and is used to guide the airflow blown out by the fan 5 . When the first air guide plate 413 rotates, the airflow of the fan 5 can be respectively guided to the two ends of the first air duct 11 , so that the airflow is dispersed.

[0034] The speed adjustment component 42 includes a second connecting rod 422 rotatably connected to the inner wall of the cabinet 1 and a first driven wheel 421 fixedly sleeved on the outer surface of the second connecting rod 422. The second guide component 43 includes a third connecting rod 431 rotatably connected to the inner wall of the cabinet 1 and a second driven wheel 432 fixedly sleeved on the outer surface of the third connecting rod 431. The first transmission belt 44 is sleeved on the outer surfaces of the driving wheel 414, the first driven wheel 421 and the second driven wheel 432. The first transmission belt 44 is used for transmission. When the motor 411 drives the driving wheel 414 to rotate, the transmission of the first transmission belt 44 can drive the first driven wheel 421 and the second driven wheel 432 to rotate.

[0035] One end of the third connecting rod 431 is fixedly connected to the second air guide plate 433, and the second air guide plate 433 is arranged below the fourth air duct 14. The second air guide plate 433 is used to guide the downward airflow in the fourth air duct 14. When the third connecting rod 431 rotates, it can drive the second air guide plate 433 to rotate. When the airflow is discharged from the lower end of the fourth air duct 14, the airflow can be guided by the rotation of the second air guide plate 433, and can be dispersed to the two ends of the fifth air duct 15.

[0036] One end of the second connecting rod 422 is fixedly connected to the first gear 423, and the outer surface of the first gear 423 is meshingly connected to the second gear 425. One end of the second gear 425 is fixedly connected to the fourth connecting rod 424, and one end of the fourth connecting rod 424 is rotatably connected to the inner wall of the cabinet 1. The radius of the first gear 423 is six times the radius of the second gear 425. When the first gear 423 rotates, it can drive the second gear 425 to rotate as well, and one rotation of the first gear 423 can drive the second gear 425 to rotate six times, thereby increasing the rotation speed of the second gear 425.

[0037] The wind force component 46 includes a fifth connecting rod 461, one end of which is rotatably connected to the inner wall of the cabinet 1, and a first bevel gear 462 fixedly connected to the other end of the fifth connecting rod 461. The pulley transmission part 45 is arranged on the outer surfaces of the fifth connecting rod 461 and the fourth connecting rod 424. The second gear 425 is used to drive the first bevel gear 462 to rotate. It should be noted that the transmission is carried out through the pulley transmission part 45, so that the fourth connecting rod 424 can drive the fifth connecting rod 461 to rotate together. This technical solution is not an innovative part of the present application document and belongs to common knowledge. Those skilled in the art are able to think of the specific structure. When the fifth connecting rod 461 rotates, it can drive the first bevel gear 462 to rotate as well.

[0038] A support plate 464 is fixedly connected to the inner wall of the cabinet 1, and a transmission rod 465 is rotatably connected to the support plate 464 from top to bottom. A fan blade 466 is fixedly connected to the lower end of the transmission rod 465, and the fan blade 466 is arranged above the fourth air duct 14. The fan blade 466 is used to blow air into the fourth air duct 14. When the fan blade 466 rotates, it can generate an airflow blowing into the inside of the fourth air duct 14. At this time, the airflow at both ends of the third air duct 13 moves toward the middle.

[0039] The upper end of the transmission rod 465 is fixedly connected with the second bevel gear 463, and the second bevel gear 463 is meshed with the first bevel gear 462. The second bevel gear 463 is used for transmission. When the first bevel gear 462 rotates, the transmission rod 465 can be driven to rotate through the second bevel gear 463, so that the fan blades 466 also rotate.

[0040] There are three groups of partitions 6 fixedly arranged, and the three groups of partitions 6 correspond to the positions of the three groups of power equipment parts 3 respectively. The partitions 6 are used to block the passage of airflow so that the airflow can flow along the air duct.

[0041] When in use, the temperatures of the three groups of power equipment parts 3 are detected by the temperature sensors 7 arranged at intervals. When it is detected that the temperature of the power equipment part 3 exceeds the threshold value, the control unit 8 controls the fan 5 and the motor 411 to start, so that the first air guide plate 413 and the second air guide plate 433 both rotate. The rotation of the first air guide plate 413 can guide the airflow blown out by the fan 5 to the two ends of the first air duct 11, and the airflow at the two ends of the first air duct 11 can enter the second air duct 12. A part of the airflow in the second air duct 12 enters the sixth air duct 16, and the other part enters the third air duct 13. When the first air guide plate 413 rotates, the fan blades 466 also rotate, and the fan blades 466 rotate. 466 can blow the airflow inside the third air duct 13 into the fifth air duct 15 through the fourth air duct 14. The airflow entering the fifth air duct 15 can be guided to the two ends of the fifth air duct 15 by the rotating second air guide plate 433 and merge with the airflow in the second air duct 12 to enter the sixth air duct 16. The airflow flowing in the sixth air duct 16 can be discharged from the first air duct 11 through the air outlet 9, so that the airflow can pass through the three groups of power equipment parts 3. When the airflow circulates, the heat of the power equipment parts 3 can be taken away. Through the improvement of the heat dissipation air duct, uniform heat dissipation of the power equipment parts 3 can be achieved, avoiding local heat accumulation affecting the use of high and low voltage switch cabinets.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high- and low-voltage switch cabinet structure that facilitates heat dissipation, comprising a cabinet body (1) and a cabinet door (2) rotatably arranged on one side of the cabinet body (1), an electric power equipment part (3) being fixedly mounted on an inner wall of one side of the cabinet body (1), and the electric power equipment part (3) being arranged in three groups, characterized in that: A wind guide assembly (4) is embedded in one side of the cabinet (1), a fan (5) is embedded in the upper end of the cabinet (1), a partition (6) and a control unit (8) are fixedly arranged at intervals on the inner wall of the cabinet (1), a temperature sensor (7) is arranged on one side of the power equipment unit (3), an air outlet (9) is provided on one side of the cabinet (1) near the lower edge, the temperature sensor (7) is used to detect temperature, the partition (6) is used to separate space, the fan (5) is used to blow out airflow, and the wind guide assembly (4) is used to guide the airflow blown out by the fan (5); The wind force guide assembly (4) comprises a first guide component (41), a speed adjustment component (42) and a second guide component (43) which are arranged at intervals on the inner wall of the cabinet (1); the first guide component (41), the speed adjustment component (42) and the second guide component (43) are arranged in a triangular shape; a first transmission belt (44) is sleeved on the outer surfaces of the first guide component (41), the speed adjustment component (42) and the second guide component (43); a clearance hole for the first transmission belt (44) to move is provided on the power equipment part (3); a wind force component (46) is provided on the inner wall of the cabinet (1); and the speed adjustment component (42) and the second guide component (43) are sleeved on the outer surfaces of the first guide component (41), the speed adjustment component (42) and the second guide component (43). A pulley transmission part (45) is provided between the adjustment component (42) and the wind force component (46); the first transmission belt (44) is used for transmission; the first guide component (41) is used for driving the speed adjustment component (42) and the second guide component (43) to rotate via the first transmission belt (44); the pulley transmission part (45) is used for transmission, so that the speed adjustment component (42) can drive the wind force component (46) to rotate; the speed adjustment component (42) is used to increase the rotation speed of the wind force component (46); the wind force component (46), the second guide component (43) and the first guide component (41) are all used for guiding airflow; A first air duct (11), a second air duct (12), a third air duct (13), a fourth air duct (14), a fifth air duct (15) and a sixth air duct (16) are distributed inside the cabinet (1); the first air duct (11) is arranged below the fan (5); two groups of second air ducts (12) are arranged; the two groups of second air ducts (12) are arranged in a connected manner below the first air duct (11) and between the inner walls on both sides of the cabinet (1); the third air duct (13) is arranged between the two groups of power equipment parts (3) at the upper position; the fifth air duct (15) is arranged between the two groups of power equipment parts (3) at the lower position; and both ends of the third air duct (13) and the fifth air duct (15) are connected to the second air duct (12); the fourth air duct (14) is arranged in a connected manner between the third air duct (13) and the fifth air duct (15); and the sixth air duct (16) is arranged in a connected manner below the second air duct (12); The first guide component (41) comprises a motor (411) embedded in one side of the cabinet (1) and a first connecting rod (412) fixedly connected to the output end of the motor (411), and the motor (411), the temperature sensor (7) and the fan (5) are all electrically connected to the control unit (8); the other end of the first connecting rod (412) is fixedly connected to a first air guide plate (413); the outer surface of the first connecting rod (412) is fixedly sleeved with a driving wheel (414); and the motor (411) is used to drive the first air guide plate (413) and the driving wheel (414) to rotate.

2. A high and low voltage switch cabinet structure that is easy to dissipate heat as claimed in claim 1, characterized in that: The first air guide plate (413) is arranged below the fan (5), and the first air guide plate (413) is used to guide the airflow blown out by the fan (5).

3. A high and low voltage switch cabinet structure for facilitating heat dissipation as claimed in claim 1, characterized in that: The speed adjustment component (42) comprises a second connecting rod (422) rotatably connected to the inner wall of the cabinet (1) and a first driven wheel (421) fixedly sleeved on the outer surface of the second connecting rod (422); the second guide component (43) comprises a third connecting rod (431) rotatably connected to the inner wall of the cabinet (1) and a second driven wheel (432) fixedly sleeved on the outer surface of the third connecting rod (431); a first transmission belt (44) is sleeved on the outer surfaces of the driving wheel (414), the first driven wheel (421) and the second driven wheel (432); and the first transmission belt (44) is used for transmission.

4. A high and low voltage switch cabinet structure that is easy to dissipate heat as claimed in claim 3, characterized in that: One end of the third connecting rod (431) is fixedly connected to a second air guide plate (433), and the second air guide plate (433) is arranged below the fourth air duct (14), and the second air guide plate (433) is used to guide the downward airflow in the fourth air duct (14).

5. A high and low voltage switch cabinet structure that is easy to dissipate heat as claimed in claim 3, characterized in that: One end of the second connecting rod (422) is fixedly connected to the first gear (423), the outer surface of the first gear (423) is meshingly connected to the second gear (425), one end of the second gear (425) is fixedly connected to the fourth connecting rod (424), and one end of the fourth connecting rod (424) is rotatably connected to the inner wall of the cabinet (1), and the radius of the first gear (423) is six times the radius of the second gear (425).

6. A high and low voltage switch cabinet structure for facilitating heat dissipation as claimed in claim 5, characterized in that: The wind force component (46) comprises a fifth connecting rod (461) having one end rotatably connected to the inner wall of the cabinet (1) and a first bevel gear (462) fixedly connected to the other end of the fifth connecting rod (461); a pulley transmission part (45) is arranged on the outer surfaces of the fifth connecting rod (461) and the fourth connecting rod (424); and the second gear (425) is used to drive the first bevel gear (462) to rotate.

7. A high and low voltage switch cabinet structure for facilitating heat dissipation as claimed in claim 6, characterized in that: The inner wall of the cabinet (1) is fixedly connected to a support plate (464), the support plate (464) is rotatably connected to a transmission rod (465) passing through the support plate (464) from top to bottom, the lower end of the transmission rod (465) is fixedly connected to a fan blade (466), and the fan blade (466) is arranged above the fourth air duct (14), and the fan blade (466) is used to blow air into the fourth air duct (14).

8. A high and low voltage switch cabinet structure for facilitating heat dissipation as claimed in claim 7, characterized in that: The upper end of the transmission rod (465) is fixedly connected to a second bevel gear (463), and the second bevel gear (463) is meshingly connected with the first bevel gear (462), and the second bevel gear (463) is used for transmission.

9. A high and low voltage switch cabinet structure that is easy to dissipate heat as claimed in claim 1, characterized in that: Three groups of partitions (6) are fixedly arranged, and the three groups of partitions (6) correspond to the positions of the three groups of power equipment parts (3) respectively. The partitions (6) are used to block the passage of airflow.

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