Power distribution cabinet heat dissipation system based on low-loss circuit breaker structure

Abstract

The invention relates to the technical field of power distribution cabinet heat dissipation, discloses a power distribution cabinet heat dissipation system based on a low-loss circuit breaker structure, and solves the problem that a power distribution cabinet based on the low-loss circuit breaker structure cannot achieve a better heat dissipation effect in the use process. A supporting bottom plate is arranged under the power distribution cabinet body, four supporting rods are symmetrically and fixedly installed on the top of the supporting bottom plate, the tops of the four supporting rods are fixedly connected with the four corners of the bottom of the power distribution cabinet body respectively, a heat dissipation assembly is fixedly installed on the top of the supporting bottom plate, and the top of the heat dissipation assembly is fixedly connected with the bottom of the power distribution cabinet body. The heat dissipation assembly comprises a supporting frame, and the supporting frame is fixedly installed in the middle of the top end of the supporting bottom plate. According to the invention, the power distribution cabinet based on the low-loss circuit breaker structure can achieve a better heat dissipation effect in the use process, thereby ensuring that the power distribution cabinet can work normally.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat dissipation of power distribution cabinets, and in particular relates to a heat dissipation system for power distribution cabinets based on a low-loss circuit breaker structure. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet. It is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in occasions where the load is relatively dispersed and there are fewer circuits. The motor control center is used in occasions where the load is concentrated and there are more circuits. They distribute the power of a circuit of the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load. In order to ensure that the distribution cabinet can work better, a low-loss circuit breaker structure will be installed inside the distribution cabinet. However, the distribution cabinet based on the low-loss circuit breaker structure cannot achieve better heat dissipation effect during use, which affects the normal operation of the distribution cabinet. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a distribution cabinet heat dissipation system based on a low-loss circuit breaker structure, which effectively solves the problem that the distribution cabinet based on the low-loss circuit breaker structure cannot achieve better heat dissipation effect during use, thereby affecting the normal operation of the distribution cabinet.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a heat dissipation system for a distribution cabinet based on a low-loss circuit breaker structure, comprising a distribution cabinet body, a dust-proof heat dissipation mesh plate fixedly installed through the top of the distribution cabinet body, a support base plate provided directly below the distribution cabinet body, four support rods symmetrically fixedly installed on the top of the support base plate, and the tops of the four support rods are respectively fixedly connected to the four corners of the bottom of the distribution cabinet body, a heat dissipation component is fixedly installed on the top of the support base plate, and the top of the heat dissipation component is fixedly connected to the bottom of the distribution cabinet body.

[0005] Preferably, the heat dissipation assembly includes a support frame, and the support frame is fixedly installed on the middle of the top end of the support base plate, and dust-proof air inlet mesh plates are fixedly installed through the front and rear interiors of the support frame, a connecting frame is fixedly installed on the top of the support frame, and a protective mesh plate is fixedly installed on the top of the connecting frame, and the protective mesh plate is fixedly installed through the bottom end of the distribution cabinet body, a strip shell is fixedly installed on the middle of the inner bottom end of the support frame, four first rotating shafts are evenly installed in the top end of the strip shell, and cooling fan blades are fixedly installed on the tops of the four first rotating shafts, three partitions are evenly fixed in the interior of the connecting frame, and the three partitions divide the interior of the connecting frame into four cavities, second rotating shafts are rotatably installed in the interiors of the four cavities, and a movable plate is fixedly installed on the outside of the second rotating shaft.

[0006] Preferably, a protective frame is fixedly installed on the outside of the connecting frame, and one end of the four second rotating shafts are movable through and extend to the inside of the protective frame, and a driven gear is fixedly installed on one end of the second rotating shaft located inside the protective frame, and the bottom of the driven gear is meshed and connected with a movable rack, and a movable bar is fixedly installed on the bottom of the movable rack. A first opening is opened on both sides of the protective frame, and the size of the first opening is adapted to the cross-sectional size of the movable bar and the movable rack, a bar frame is fixedly installed on the inner bottom end of the protective frame, a reciprocating screw is rotatably installed inside the bar frame, a threaded sleeve is threadedly installed on the outer side of the reciprocating screw, and the movable bar is fixedly installed on the top of the threaded sleeve.

[0007] Preferably, a positioning slider is fixedly installed on the outer side of the threaded sleeve, a positioning slot is opened through the outer side of the bar frame, and the positioning slider is slidably installed inside the positioning slot.

[0008] Preferably, a first transmission shaft is fixedly installed on one end of the reciprocating screw, and one end of the first transmission shaft movably passes through and extends to the outside of the protective frame. A positioning seat is fixedly installed on the inner wall of the protective frame, and the first transmission shaft is rotatably installed inside the positioning seat.

[0009] Preferably, a drive box is fixedly installed on the outside of the connecting frame, and the outside of the bottom end of the drive box is fixedly connected to the outside of the support frame, a dual-axis motor is fixedly installed on the inner wall of the drive box, and a first drive shaft is fixedly installed on the top of the top output shaft of the dual-axis motor, and a first drive bevel gear is fixedly installed on the top of the first drive shaft, and the outside of the first drive bevel gear is meshed with a reduction bevel gear, and a positioning shaft is fixedly installed through the inside of the reduction bevel gear, and the positioning shaft is rotatably installed inside the drive box, and a drive wheel is fixedly installed on the outside of the positioning shaft, and a transmission belt is provided on the outside of the drive wheel. A second opening is opened through the outside of the drive box, and an end of the transmission belt away from the drive wheel movably passes through the second opening and extends to the outside of the drive box, and a transmission wheel is installed inside the end of the transmission belt away from the drive wheel, and the transmission wheel is fixedly installed on the outside of one end of the first transmission shaft located outside the protective frame.

[0010] Preferably, a positioning frame is rotatably mounted on the outer side of the first driving shaft, and the positioning frame is fixedly mounted on the inner wall of the driving box.

[0011] Preferably, a second driving shaft is fixedly installed on the bottom of the bottom output shaft of the dual-axis motor, and the bottom of the second driving shaft is rotatably connected to the internal bottom end of the driving box, a second driving bevel gear is fixedly installed on the outside of the second driving shaft, and the outside of the second driving bevel gear is meshed with the first transmission bevel gear, and a second transmission shaft is fixedly installed on one side of the first transmission bevel gear, and the end of the second transmission shaft away from the first transmission bevel gear movably penetrates and extends to the interior of the strip shell and is rotatably connected to the inner wall of the strip shell, four second transmission bevel gears are fixedly installed inside the strip shell and on the outside of the second transmission shaft, the outside of the second transmission bevel gear is meshed with an increasing bevel gear, and the four increasing bevel gears are respectively fixedly installed on the bottom of the four first rotating shafts.

[0012] Preferably, a positioning strip is provided between the speed-increasing bevel gear and the heat dissipation fan blades, and the positioning strip is fixedly installed inside the strip-shaped housing, and the four first rotating shafts are symmetrically rotatably installed inside the positioning strip.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1) During operation, the interaction between the power distribution cabinet body, dustproof and heat dissipation mesh plate, support base plate, support rod and heat dissipation components enables the power distribution cabinet based on the low-loss circuit breaker structure to achieve better heat dissipation effect during use, thereby ensuring that the power distribution cabinet can work normally;

[0015] 2) During operation, the positioning slider and the positioning slot interact with each other to enable the threaded sleeve to move stably inside the bar frame, thereby achieving a stable transmission effect;

[0016] 3) During operation, the positioning frame is provided to ensure that the first drive shaft can achieve better stability inside the drive box, thereby ensuring a stable driving effect;

[0017] 4) During operation, the positioning strips are provided to enable the first rotating shaft to achieve better stability, thereby stably driving the heat dissipation fan blades to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached figure:

[0020] Figure 1 This is a structural schematic diagram of a power distribution cabinet heat dissipation system based on a low-loss circuit breaker structure according to the present invention;

[0021] Figure 2 It is a schematic structural diagram of the heat dissipation assembly of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the support frame of the present invention;

[0023] Figure 4 This is a schematic diagram of the interior of the connection frame of the present invention;

[0024] Figure 5 This is a schematic diagram of the interior of the bar frame of the present invention;

[0025] Figure 6 This is a schematic diagram of the interior of the drive box of the present invention;

[0026] Figure 7 This is a system block diagram of the present invention.

[0027] In the figure: 1, distribution cabinet body; 2, dustproof heat dissipation mesh plate; 3, support bottom plate; 4, support rod; 5, heat dissipation assembly; 6, support frame; 7, dustproof air inlet mesh plate; 8, connection frame; 9, protective mesh plate; 10, strip shell; 11, first rotating shaft; 12, heat dissipation fan blade; 13, partition; 14, cavity; 15, second rotating shaft; 16, movable plate; 17, protective frame; 18, driven gear; 19, movable rack; 20, movable bar; 21, first opening; 22, strip frame; 23, reciprocating screw; 24, threaded sleeve; 25, fixed Positioning slider; 26. Positioning slide; 27. First transmission shaft; 28. Positioning seat; 29. Drive box; 30. Dual-axis motor; 31. First drive shaft; 32. First drive bevel gear; 33. Speed reduction bevel gear; 34. Positioning shaft; 35. Drive wheel; 36. Drive belt; 37. Second opening; 38. Drive wheel; 39. Positioning frame; 40. Second drive shaft; 41. Second drive bevel gear; 42. First transmission bevel gear; 43. Second transmission shaft; 44. Second transmission bevel gear; 45. Speed increase bevel gear; 46. Positioning strip. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Embodiment 1, by Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7The present invention includes a power distribution cabinet body 1, a control module and a temperature sensor are installed inside the power distribution cabinet body 1, and the control module and the temperature sensor are electrically connected, a dustproof and heat dissipation mesh plate 2 is fixedly installed on the top of the power distribution cabinet body 1, a support base plate 3 is provided directly below the power distribution cabinet body 1, four support rods 4 are symmetrically fixedly installed on the top of the support base plate 3, and the tops of the four support rods 4 are respectively fixedly connected to the four corners of the bottom of the power distribution cabinet body 1, a heat dissipation component 5 is fixedly installed on the top of the support base plate 3, and the top of the heat dissipation component 5 is fixedly connected to the bottom of the power distribution cabinet body 1, and the heat dissipation component 5 is controlled by the control module inside the power distribution cabinet body 1;

[0030] During use, through the interaction of the distribution cabinet body 1, dustproof and heat dissipation mesh plate 2, support base plate 3, support rod 4 and heat dissipation component 5, the distribution cabinet based on the low-loss circuit breaker structure can achieve better heat dissipation effect during use, thereby ensuring that the distribution cabinet can work normally.

[0031] Example 2, based on Example 1, the heat dissipation assembly 5 includes a support frame 6, and the support frame 6 is fixedly installed in the middle of the top of the support base plate 3, the front and rear interiors of the support frame 6 are fixedly penetrated with a dust-proof air inlet screen 7, the top of the support frame 6 is fixedly installed with a connecting frame 8, the top of the connecting frame 8 is fixedly installed with a protective screen 9, and the protective screen 9 is fixedly installed through the bottom of the distribution cabinet body 1, the middle of the inner bottom of the support frame 6 is fixedly installed with a strip shell 10, and the top of the strip shell 10 is uniformly Four first rotating shafts 11 are rotatably installed, and the tops of the four first rotating shafts 11 are fixedly installed with heat dissipation fan blades 12. Three partitions 13 are evenly fixedly installed inside the connecting frame 8, and the three partitions 13 divide the interior of the connecting frame 8 into four cavities 14. The interiors of the four cavities 14 are rotatably installed with second rotating shafts 15. The outer side of the second rotating shaft 15 is fixedly installed with a movable plate 16. The outer side of the connecting frame 8 is fixedly installed with a protective frame 17, and one end of the four second rotating shafts 15 is movable through and extends. The second rotating shaft 15 extends to the interior of the protective frame 17. A driven gear 18 is fixedly installed at one end of the second rotating shaft 15 located inside the protective frame 17. The bottom of the driven gear 18 is engaged with a movable rack 19. The bottom of the movable rack 19 is fixedly installed with a movable bar 20. Both sides of the protective frame 17 are penetrated by a first opening 21. The size of the first opening 21 is adapted to the cross-sectional size of the movable bar 20 and the movable rack 19. A bar frame 22 is fixedly installed at the bottom end of the interior of the protective frame 17. The inner rotation of the bar frame 22 is installed. The reciprocating screw rod 23 has a threaded sleeve 24 installed on its outer thread, and the movable bar 20 is fixedly installed on the top of the threaded sleeve 24. A positioning slider 25 is fixedly installed on the outer side of the threaded sleeve 24. A positioning slot 26 is provided on the outer side of the bar frame 22, and the positioning slider 25 is slidably installed inside the positioning slot 26. Through the interaction between the positioning slider 25 and the positioning slot 26, the threaded sleeve 24 can move stably inside the bar frame 22, thereby achieving a stable transmission effect.

[0032] One end of the reciprocating screw 23 is fixedly mounted with a first transmission shaft 27, and one end of the first transmission shaft 27 is movable through and extends to the outside of the protective frame 17, a positioning seat 28 is fixedly mounted on the inner wall of the protective frame 17, and the first transmission shaft 27 is rotatably mounted inside the positioning seat 28, a drive box 29 is fixedly mounted on the outside of the connecting frame 8, and the outer side of the bottom end of the drive box 29 is fixedly connected to the outer side of the support frame 6, a dual-axis motor 30 is fixedly mounted on the inner wall of the drive box 29, and a first drive shaft 31 is fixedly mounted on the top of the top output shaft of the dual-axis motor 30, a positioning frame 39 is rotatably mounted on the outer side of the first drive shaft 31, and the positioning frame 39 is fixedly mounted on the inner wall of the drive box 29, and the positioning frame 39 is provided so that the first drive shaft 31 can achieve better stability inside the drive box 29. , so as to ensure that a stable driving effect can be achieved, a first driving bevel gear 32 is fixedly installed on the top of the first driving shaft 31, and a reduction bevel gear 33 is meshed on the outer side of the first driving bevel gear 32. A positioning shaft 34 is fixedly installed inside the reduction bevel gear 33, and the positioning shaft 34 is rotatably installed inside the driving box 29. A driving wheel 35 is fixedly installed on the outer side of the positioning shaft 34, and a transmission belt 36 is sleeved on the outer side of the driving wheel 35. A second opening 37 is opened on the outer side of the driving box 29, and the end of the transmission belt 36 away from the driving wheel 35 movably passes through the second opening 37 and extends to the outside of the driving box 29. A transmission wheel 38 is installed inside the end of the transmission belt 36 away from the driving wheel 35, and the transmission wheel 38 is fixedly installed on the outer side of the end of the first transmission shaft 27 located outside the protective frame 17;

[0033] The bottom of the bottom output shaft of the dual-axis motor 30 is fixedly mounted with a second drive shaft 40, and the bottom of the second drive shaft 40 is rotatably connected to the inner bottom end of the drive box 29, and the outer side of the second drive shaft 40 is fixedly mounted with a second drive bevel gear 41, and the outer side of the second drive bevel gear 41 is meshedly connected with the first transmission bevel gear 42, and a second transmission shaft 43 is fixedly mounted on one side of the first transmission bevel gear 42, and the second transmission shaft 43 is movable away from one end of the first transmission bevel gear 42 and extends to the interior of the strip housing 10 and is rotatably connected to the inner wall of the strip housing 10, and the interior of the strip housing 10 and located at the second transmission shaft Four second transmission bevel gears 44 are fixedly installed on the outside of the rod 43, and the outside of the second transmission bevel gear 44 is meshed with a speed-increasing bevel gear 45, and the four speed-increasing bevel gears 45 are respectively fixedly installed on the bottom of the four first rotating shafts 11, and a positioning strip 46 is provided between the speed-increasing bevel gear 45 and the heat dissipation fan blades 12, and the positioning strip 46 is fixedly installed inside the bar-shaped shell 10. The four first rotating shafts 11 are symmetrically rotated and installed inside the positioning strip 46. Through the setting of the positioning strip 46, the first rotating shaft 11 can achieve better stability, thereby stably driving the heat dissipation fan blades 12 to rotate.

[0034] Working principle: When working, the distribution cabinet body 1 works first, and the control module and temperature sensor inside it also work at the same time. The temperature sensor works to monitor the temperature inside the distribution cabinet body 1. When the temperature is too high, the temperature sensor sends a signal. After receiving the signal, the control module controls the heat dissipation component 5 to work. The dual-axis motor 30 on the heat dissipation component 5 works, and the dual-axis motor 30 drives the second drive shaft 40 to rotate. The second drive shaft 40 drives the second drive bevel gear 41 to rotate. The second drive bevel gear 41 drives the first transmission bevel gear 42 to rotate. The first transmission bevel gear 42 drives the second transmission bevel gear 42 to rotate. The second transmission shaft 43 rotates, and the second transmission shaft 43 drives the four second transmission bevel gears 44 on its outer side to rotate simultaneously. The second transmission bevel gear 44 drives the speed-increasing bevel gear 45 to rotate. The speed-increasing bevel gear 45 drives the first rotating shaft 11 to rotate rapidly. The first rotating shaft 11 drives the heat dissipation fan blades 12 to rotate. The heat dissipation fan blades 12 rotate to introduce external air through the dust-proof air inlet mesh plate 7, and then blow air upward. The air blown upward enters the interior of the distribution cabinet body 1 through the connecting frame 8 and the protective mesh plate 9, and blows the hot air inside the distribution cabinet body 1 upward through the dust-proof heat dissipation mesh plate 2;

[0035] At the same time, the dual-axis motor 30 drives the first drive shaft 31 to rotate, the first drive shaft 31 drives the first drive bevel gear 32 to rotate, the first drive bevel gear 32 drives the reduction bevel gear 33 to rotate, the reduction bevel gear 33 drives the positioning shaft 34 to rotate, the positioning shaft 34 drives the driving wheel 35 to rotate, the driving wheel 35 drives the driving wheel 38 to rotate through the transmission belt 36, the driving wheel 38 drives the first transmission shaft 27 to rotate, the first transmission shaft 27 drives the reciprocating screw 23 to rotate, the reciprocating screw 23 drives the threaded sleeve 24 to move, and the threaded sleeve 24 drives the positioning slider 25 inside the positioning slot 26 Sliding can ensure that the threaded sleeve 24 achieves better stability when moving. At the same time, the threaded sleeve 24 drives the movable bar 20 to move, the movable bar 20 drives the movable rack 19 to move, the movable rack 19 drives the driven gear 18 to rotate, the driven gear 18 drives the second rotating shaft 15 to rotate, and the second rotating shaft 15 drives the movable plate 16 to swing back and forth inside the cavity 14. The swinging movable plate 16 guides the air blown out by the heat dissipation fan blades 12, so that the upward wind blown upward in a swinging and diffused state is blown into the interior of the distribution cabinet body 1, and the hot air inside the distribution cabinet body 1 is blown out by the wind blowing upward from below;

[0036] Then, when the temperature sensor detects that the temperature inside the distribution cabinet body 1 drops to a preset temperature value, it sends a signal. The control module receives the signal and controls the heat dissipation component 5 to stop working. In this way, the distribution cabinet based on the low-loss circuit breaker structure can achieve better heat dissipation effect during use, thereby ensuring that the distribution cabinet can work normally.

Claims

1. A power distribution cabinet heat dissipation system based on a low-loss circuit breaker structure, comprising a power distribution cabinet body (1), characterized in that: A dustproof heat dissipation mesh plate (2) is fixedly installed on the top of the power distribution cabinet body (1); a support base plate (3) is provided directly below the power distribution cabinet body (1); four support rods (4) are symmetrically fixedly installed on the top of the support base plate (3); and the tops of the four support rods (4) are respectively fixedly connected to the four corners of the bottom of the power distribution cabinet body (1); a heat dissipation component (5) is fixedly installed on the top of the support base plate (3), and the top of the heat dissipation component (5) is fixedly connected to the bottom of the power distribution cabinet body (1).

2. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 1 is characterized in that: The heat dissipation assembly (5) includes a support frame (6), and the support frame (6) is fixedly installed at the middle of the top end of the support base plate (3), a dust-proof air inlet screen (7) is fixedly installed through the front and rear interiors of the support frame (6), a connection frame (8) is fixedly installed at the top of the support frame (6), a protective screen (9) is fixedly installed at the top of the connection frame (8), and the protective screen (9) is fixedly installed through the bottom end of the power distribution cabinet body (1), and a strip shell (10) is fixedly installed at the middle of the bottom end of the support frame (6) Four first rotating shafts (11) are evenly and rotatably mounted inside the top of the strip shell (10), and heat dissipation fan blades (12) are fixedly mounted on the tops of the four first rotating shafts (11). Three partitions (13) are evenly and rotatably mounted inside the connecting frame (8), and the three partitions (13) evenly divide the interior of the connecting frame (8) into four cavities (14). Second rotating shafts (15) are rotatably mounted inside the four cavities (14), and a movable plate (16) is fixedly mounted on the outside of the second rotating shaft (15).

3. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 2 is characterized in that: A protective frame (17) is fixedly installed on the outer side of the connecting frame (8), and one end of each of the four second rotating shafts (15) is movable and extends into the interior of the protective frame (17). A driven gear (18) is fixedly installed on one end of the second rotating shaft (15) located inside the protective frame (17). The bottom of the driven gear (18) is meshed and connected with a movable rack (19). A movable bar (20) is fixedly installed on the bottom of the movable rack (19). A first opening (21) is opened through both sides of the protective frame (17), and the size of the first opening (21) is adapted to the cross-sectional size of the movable bar (20) and the movable rack (19). A strip frame (22) is fixedly installed on the inner bottom end of the protective frame (17). A reciprocating screw rod (23) is rotatably installed inside the strip frame (22). A threaded sleeve (24) is threadedly installed on the outer side of the reciprocating screw rod (23), and the movable bar (20) is fixedly installed on the top of the threaded sleeve (24).

4. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 3 is characterized in that: A positioning slide block (25) is fixedly installed on the outer side of the threaded sleeve (24), a positioning slot (26) is opened through the outer side of the bar frame (22), and the positioning slide block (25) is slidably installed inside the positioning slot (26).

5. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 3 is characterized in that: A first transmission shaft (27) is fixedly mounted on one end of the reciprocating screw rod (23), and one end of the first transmission shaft (27) movably penetrates and extends to the outside of the protection frame (17). A positioning seat (28) is fixedly mounted on the inner wall of the protection frame (17), and the first transmission shaft (27) is rotatably mounted inside the positioning seat (28).

6. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 5, characterized in that: A driving box (29) is fixedly installed on the outer side of the connecting frame (8), and the outer side of the bottom end of the driving box (29) is fixedly connected to the outer side of the supporting frame (6). A dual-axis motor (30) is fixedly installed on the inner wall of the driving box (29). A first driving shaft (31) is fixedly installed on the top of the top output shaft of the dual-axis motor (30). A first driving bevel gear (32) is fixedly installed on the top of the first driving shaft (31). The outer side of the first driving bevel gear (32) is meshedly connected with a reduction bevel gear (33). A positioning shaft (34) is fixedly installed through the interior of the reduction bevel gear (33), and the positioning shaft (34) The driving box (29) is rotatably mounted inside the driving box (29), a driving wheel (35) is fixedly mounted on the outside of the positioning shaft (34), a transmission belt (36) is sleeved on the outside of the driving wheel (35), a second opening (37) is opened through the outside of the driving box (29), and an end of the transmission belt (36) away from the driving wheel (35) is movable through the second opening (37) and extends to the outside of the driving box (29), a transmission wheel (38) is mounted inside the end of the transmission belt (36) away from the driving wheel (35), and the transmission wheel (38) is fixedly mounted on the outside of one end of the first transmission shaft (27) located outside the protective frame (17).

7. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 6, characterized in that: A positioning frame (39) is rotatably mounted on the outer side of the first driving shaft (31), and the positioning frame (39) is fixedly mounted on the inner wall of the driving box (29).

8. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 6, characterized in that: A second driving shaft (40) is fixedly mounted on the bottom of the bottom output shaft of the dual-axis motor (30), and the bottom of the second driving shaft (40) is rotatably connected to the inner bottom end of the driving box (29); a second driving bevel gear (41) is fixedly mounted on the outer side of the second driving shaft (40); the outer side of the second driving bevel gear (41) is meshedly connected to the first transmission bevel gear (42); a second transmission shaft (43) is fixedly mounted on one side of the first transmission bevel gear (42); an end of the second transmission shaft (43) away from the first transmission bevel gear (42) is movable through and extends to the inside of the strip housing (10) and is rotatably connected to the inner wall of the strip housing (10); four second transmission bevel gears (44) are fixedly mounted inside the strip housing (10) and on the outer side of the second transmission shaft (43); the outer side of the second transmission bevel gear (44) is meshedly connected to the speed-increasing bevel gear (45), and the four speed-increasing bevel gears (45) are respectively fixedly mounted on the bottoms of the four first rotating shafts (11).

9. The power distribution cabinet heat dissipation system based on the low-loss circuit breaker structure according to claim 8, characterized in that: A positioning strip (46) is provided between the speed-increasing bevel gear (45) and the heat dissipation fan blade (12), and the positioning strip (46) is fixedly installed inside the strip-shaped housing (10), and the four first rotating shafts (11) are symmetrically rotated and installed inside the positioning strip (46).

Images