Novel motor controller heat dissipation device

Abstract

The utility model discloses a novel motor controller heat dissipation device, which comprises a protection box body, four end corners of the lower end of the protection box body are fixedly connected with support columns, one side of the upper end of the protection box body is fixedly connected with a first round rod, the upper end of the protection box body is provided with a box cover, one side of the lower end of the box cover is rotatably connected with the first round rod, and the first round rod is fixedly connected with the support columns. A first notch is formed in the end of the box cover, and a first heat dissipation mechanism is arranged at the upper end of the box cover and corresponds to the first notch. According to the novel motor controller heat dissipation device provided by the utility model, through the structural cooperation design of the first heat dissipation mechanism, the refrigeration mechanism and the second heat dissipation mechanism, when the electrolytic capacitor plate main body needs to be subjected to heat dissipation, the heat dissipation effect is good; through cooperation of the first heat dissipation mechanism, the refrigeration mechanism and the second heat dissipation mechanism, heat dissipated by the electrolytic capacitor plate main body can be rapidly dissipated, so that the heat dissipation efficiency of the main body equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation devices for motor controllers, in particular to a novel heat dissipation device for motor controllers. Background Art

[0002] Electrolytic capacitors are widely used in motor controller filter circuits due to their large capacity, good current ripple filtering effect, and low price. When current ripple flows through the electrolytic capacitor, the electrolytic capacitor itself will generate more heat due to the equivalent series resistance at both ends of the electrolytic capacitor. As the temperature increases, the electrolytic capacitor's ability to filter low-frequency signals in the current will decrease, and the life of the electrolytic capacitor will also be affected. When the temperature exceeds the electrolytic capacitor's tolerance temperature, the electrolyte in the electrolytic capacitor will boil, the internal pressure of the electrolytic capacitor will increase, causing the electrolyte to leak, causing permanent damage to the electrolytic capacitor, and then it needs to be cooled by a heat sink.

[0003] Currently, most heat dissipation methods have low practicality, slow heat dissipation effect, and cannot achieve efficient heat dissipation effect, thereby reducing the efficiency of heat dissipation for the main equipment.

[0004] Therefore, it is necessary to propose a novel heat dissipation device for a motor controller to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0005] Based on this, it is necessary to provide a new type of motor controller heat dissipation device to address the above technical problems. Through the structural coordination design of the first heat dissipation mechanism, the refrigeration mechanism, and the second heat dissipation mechanism, when the electrolytic capacitor plate main body needs to be cooled, the heat emitted by the electrolytic capacitor plate main body can be quickly dissipated through the coordination of the first heat dissipation mechanism, the refrigeration mechanism, and the second heat dissipation mechanism, thereby improving the heat dissipation efficiency of the main equipment.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0007] The novel motor controller heat dissipation device specifically includes a protective plate, including a protective box body, support columns are fixedly connected at the positions of the four end corners of the lower end of the protective box body, a first round rod is fixedly connected to one side of the upper end of the protective box body, a box cover is arranged at the upper end of the protective box body, one side of the lower end of the box cover is rotatably connected to the first round rod, a first notch is provided at the end of the box cover, a first heat dissipation mechanism is provided at the upper end of the box cover and corresponding to the first notch, a refrigeration mechanism is provided at the lower end of the box cover and at a position corresponding to the first notch, an electrolytic capacitor plate body is provided inside the protective box body, first air vents are provided on both sides of the protective box body, a second air vent is provided at the bottom of the protective box body, a second heat dissipation mechanism is provided inside the protective box body and at the lower end of the electrolytic capacitor plate body, second notches are provided at both ends of the box cover on a side away from the first round rod, and a first limiting mechanism is provided inside the second notch.

[0008] As a preferred embodiment of the novel motor controller heat dissipation device provided by the utility model, the electrolytic capacitor board body includes a main board, a plurality of electrolytic capacitor blocks are installed on the upper end of the main board, handles are fixedly connected on both sides of the upper end of the main board, second limiting mechanisms are provided at both ends of both sides of the main board, and a first slide groove is opened inside the protective box and at a position corresponding to the second limiting mechanism.

[0009] As a preferred embodiment of the novel motor controller heat dissipation device provided by the utility model, the second limiting mechanism includes a first connecting block, the first connecting block is fixedly connected to the mainboard, the first connecting block is slidably connected to the first slide groove, a second slide groove is opened at the end of the first connecting block, a spring is arranged inside the second slide groove, both ends of the spring are fixedly connected with a plug-in block, the plug-in block is slidably connected to the second slide groove, one end of the plug-in block away from the spring is plug-connected to the inside of the first slide groove, the upper and lower ends of the plug-in block at one end inside the second slide groove are fixedly connected with a slider, the upper and lower ends inside the second slide groove are provided with a third slide groove corresponding to the slider, and the slider is slidably connected to the third slide groove.

[0010] As a preferred embodiment of the new motor controller heat dissipation device provided by the utility model, the second heat dissipation mechanism includes a first cooling fan, the first cooling fan is located inside the protective box and corresponds to the second air vent, both sides of the lower end of the first cooling fan are fixedly connected with second connecting blocks, both ends of the lower end of the second connecting block are fixedly connected with first fixing blocks, one end of the first fixing block away from the second connecting block is fixedly connected to the bottom of the inside of the protective box, the upper end of the first cooling fan is fixedly connected with a heat absorbing plate, and the upper end of the heat absorbing plate is in contact with the bottom of the mainboard.

[0011] As a preferred embodiment of the novel motor controller heat dissipation device provided by the utility model, the first limiting mechanism includes a second fixed block and a buckle block, the number of the second fixed blocks is two, the two second fixed blocks are respectively fixed at the two end positions inside the second slot, a second round rod is arranged between the two second fixed blocks, the two ends of the second round rod are respectively fixedly connected to the second fixed blocks at the two ends, a third connecting block is rotatably connected to the outer side of the second round rod and located between the two second fixed blocks, the outer side of the third connecting block is fixedly connected to the first connecting plate, the buckle block is fixedly connected to the protective box body, the end of the first connecting plate away from the third connecting block is buckled with the buckle block, the outer side of the second round rod and the two ends of the third connecting block are fixedly connected with a torsion spring, and the end of the torsion spring away from the third connecting block is fixedly connected to the second fixed block at the same end.

[0012] As a preferred embodiment of the new motor controller heat dissipation device provided by the utility model, the first heat dissipation mechanism includes a second connecting plate, the second connecting plate is located at the upper end of the box cover and is fixedly connected to the box cover, and two installation grooves are provided at the end of the second connecting plate, both of which correspond to the first notch, and a second cooling fan is installed inside the installation groove.

[0013] As a preferred embodiment of the novel motor controller heat dissipation device provided by the utility model, the refrigeration mechanism includes a refrigeration box, which is fixed to the lower end of the box cover, and the upper end of the refrigeration box is fixedly connected to a plurality of heat sinks, and one end of the heat sink away from the refrigeration box extends through the box cover to the outside of the upper end of the box cover, and a refrigeration pipe is fixedly connected to one side of the refrigeration box close to the first slot, and the position of the refrigeration pipe corresponds to the first slot.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a novel heat dissipation device for a motor controller. Through the structural coordination design of a first heat dissipation mechanism, a refrigeration mechanism, and a second heat dissipation mechanism, when it is necessary to dissipate heat from an electrolytic capacitor plate body, the heat emitted by the electrolytic capacitor plate body can be quickly dissipated through the coordination of the first heat dissipation mechanism, the refrigeration mechanism, and the second heat dissipation mechanism, thereby improving the heat dissipation efficiency of the main device.

[0016] The utility model provides a novel heat dissipation device for a motor controller. Through the structural design of the first limiting mechanism, when the box cover and the protective box body are closed, the first limiting mechanism can be used to quickly limit the closure of the box cover and the protective box body, thereby improving the safety protection effect of the electrolytic capacitor plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a novel motor controller heat dissipation device provided by the utility model;

[0019] Figure 2 A schematic diagram of the structure of a refrigeration mechanism and an electrolytic capacitor plate body of a novel motor controller heat dissipation device provided by the utility model;

[0020] Figure 3 A schematic diagram of the structure of a second heat dissipation mechanism and a second vent of a novel motor controller heat dissipation device provided by the utility model;

[0021] Figure 4 A schematic diagram of the structure of the electrolytic capacitor plate main body of a novel motor controller heat dissipation device provided by the utility model;

[0022] Figure 5 A schematic diagram of the structure of a second limiting mechanism of a novel motor controller heat dissipation device provided by the utility model;

[0023] Figure 6 A schematic diagram of the structure of a second heat dissipation mechanism of a novel motor controller heat dissipation device provided by the utility model;

[0024] Figure 7 This is an enlarged view of a novel motor controller heat dissipation device A provided by the utility model;

[0025] Figure 8 A schematic diagram of the structure of a first heat dissipation mechanism of a novel motor controller heat dissipation device provided by the utility model;

[0026] Fig. 9 The utility model provides a novel motor controller heat dissipation device refrigeration mechanism structural diagram.

[0027] The markings in the figure are as follows:

[0028] 1. Protective box; 2. Support column; 3. First air vent; 4. First limiting mechanism; 5. Box cover; 6. First heat dissipation mechanism; 7. First round rod; 8. Refrigeration mechanism; 9. Electrolytic capacitor plate body; 10. First slide groove; 11. Second heat dissipation mechanism; 12. Second air vent; 13. Main board; 14. Electrolytic capacitor block; 15. Handle; 16. Second limiting mechanism; 17. First connecting block; 18. Second slide groove; 19. Spring; 20. Plug-in block; 21. Sliding block; 22. Third slide groove; 23. Heat absorbing plate; 24. First cooling fan; 25. Second connecting block; 26. First fixed block; 27. First connecting plate; 28. Third connecting block; 29. ​​Second fixed block; 30. Second round rod; 31. Torsion spring; 32. Second connecting plate; 33. Second cooling fan; 34. Refrigeration box; 35. Refrigeration pipe; 36. Heat sink; 37. Snap-fit ​​block. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As described in the background art, most of the current heat dissipation methods are of low practicability, have a slow heat dissipation effect, and cannot achieve an efficient heat dissipation effect, thereby reducing the efficiency of heat dissipation for the main device.

[0031] In order to solve this technical problem, the utility model provides a novel heat dissipation device for a motor controller.

[0032] Specifically, please refer to Figure 1A novel heat dissipation device for a motor controller specifically includes a protective box body 1, support columns 2 are fixedly connected at the positions of the four end corners of the lower end of the protective box body 1, a first round rod 7 is fixedly connected to one side of the upper end of the protective box body 1, a box cover 5 is arranged at the upper end of the protective box body 1, one side of the lower end of the box cover 5 is rotatably connected to the first round rod 7, a first notch is provided at the end of the box cover 5, a first heat dissipation mechanism 6 is provided at the upper end of the box cover 5 and corresponding to the first notch, a refrigeration mechanism 8 is provided at the lower end of the box cover 5 and at a position corresponding to the first notch, an electrolytic capacitor plate body 9 is provided inside the protective box body 1, first air vents 3 are provided on both sides of the protective box body 1, a second air vent 12 is provided at the bottom of the protective box body 1, a second heat dissipation mechanism 11 is provided inside the protective box body 1 and at the lower end of the electrolytic capacitor plate body 9, second notches are provided at both ends of the box cover 5 away from the first round rod 7, and a first limiting mechanism 4 is provided inside the second notch.

[0033] The utility model provides a novel heat dissipation device for a motor controller. Through the structural coordination design of a first heat dissipation mechanism 6, a refrigeration mechanism 8, and a second heat dissipation mechanism 11, when it is necessary to dissipate heat for an electrolytic capacitor plate main body 9, the heat emitted by the electrolytic capacitor plate main body 9 can be quickly dissipated through the coordination of the first heat dissipation mechanism 6, the refrigeration mechanism 8, and the second heat dissipation mechanism 11, thereby improving the heat dissipation efficiency of the main device.

[0034] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0035] Embodiment 1:

[0036] Please refer to Figure 1-Figure 6 A novel heat dissipation device for a motor controller includes a protective box 1, four end corners of the lower end of the protective box 1 are fixedly connected with support columns 2, one side of the upper end of the protective box 1 is fixedly connected with a first round rod 7, the upper end of the protective box 1 is provided with a box cover 5, one side of the lower end of the box cover 5 is rotatably connected to the first round rod 7, a first notch is provided at the end of the box cover 5, a first heat dissipation mechanism 6 is provided at the upper end of the box cover 5 and corresponding to the first notch, a refrigeration mechanism 8 is provided at the lower end of the box cover 5 and corresponding to the first notch, and the protective box 1 is provided with a cooling mechanism 8. An electrolytic capacitor plate body 9 is arranged inside the box body 1, wherein, in order to discharge the air inside the protective box body 1, first air vents 3 are opened on both sides of the protective box body 1, wherein, in order to discharge the hot air inside the protective box body 1, a second air vent 12 is opened at the bottom of the protective box body 1, and a second heat dissipation mechanism 11 is arranged inside the protective box body 1 and at the lower end position of the electrolytic capacitor plate body 9, and second slots are opened at both ends of the box cover 5 on the side away from the first round rod 7, and a first limiting mechanism 4 is arranged inside the second slot.

[0037] Through the above structural design, it can be known that the electrolytic capacitor plate main body 9 inside the protective box 1 can be protected by the cooperation between the protective box 1 and the box cover 5, and the heat emitted by the electrolytic capacitor plate main body 9 when working can be quickly dissipated through the cooperation of the first heat dissipation mechanism 6, the refrigeration mechanism 8, and the second heat dissipation mechanism 11. The protective box 1 can be supported by the support column 2, and the closing of the box cover 5 and the protective box 1 can be limited by the first limiting mechanism 4.

[0038] Specifically, the electrolytic capacitor board body 9 includes a main board 13, a plurality of electrolytic capacitor blocks 14 are installed on the upper end of the main board 13, handles 15 are fixedly connected to both sides of the upper end of the main board 13, second limiting mechanisms 16 are provided at both ends of both sides of the main board 13, and a first slide groove 10 is opened inside the protective box 1 and at a position corresponding to the second limiting mechanism 16.

[0039] Specifically, the second limiting mechanism 16 includes a first connecting block 17, which is fixedly connected to the main board 13, and the first connecting block 17 is slidably connected to the first slide groove 10. A second slide groove 18 is provided at the end of the first connecting block 17, and a spring 19 is arranged inside the second slide groove 18. Both ends of the spring 19 are fixedly connected with a plug-in block 20, and the plug-in block 20 is slidably connected to the second slide groove 18. One end of the plug-in block 20 away from the spring 19 is plug-connected to the inside of the first slide groove 10, and the upper and lower ends of the plug-in block 20 located at one end inside the second slide groove 18 are fixedly connected with a slider 21, and the upper and lower ends inside the second slide groove 18 are provided with a third slide groove 22 corresponding to the slider 21, and the slider 21 is slidably connected to the third slide groove 22.

[0040] Through the above structural design, it can be known that when the electrolytic capacitor board body 9 needs to be disassembled from the inside of the protective box 1, the first limit mechanism 4 and the protective box 1 can be opened, and the handles 15 on both sides of the main board 13 can be pulled up to the outside of the upper end of the protective box 1, and then the pulled up handles 15 drive the main board 13 to slide to the outside of the protective box 1. While the main board 13 slides to the outside of the protective box 1, the main board 13 drives the first connecting block 17 to slide upward inside the first slide groove 10, so that the first slide groove 10 squeezes the plug-in blocks at both ends of the spring 19 20. When the plug-in block 20 is squeezed and slides toward the inside of the second slide groove 18, the plug-in block 20 squeezes the spring 19, and then the spring 19 stores the squeezing force. After the plug-in blocks 20 at both ends of the spring 19 are completely squeezed into the inside of the second slide groove 18, the main board 13 can be completely pulled out from the inside of the protective box 1, and then the main board 13 drives the first connecting block 17 to be completely moved out from the inside of the first slide groove 10. After the first connecting block 17 is moved out from the inside of the first slide groove 10, the spring 19 releases the stored force to push the plug-in blocks 20 at both ends to reset.

[0041] Specifically, the second heat dissipation mechanism 11 includes a first heat dissipation fan 24, which is located inside the protective box 1 and corresponds to the second air vent 12, and both sides of the lower end of the first heat dissipation fan 24 are fixedly connected with second connecting blocks 25, and both ends of the lower end of the second connecting block 25 are fixedly connected with first fixing blocks 26, and one end of the first fixing block 26 away from the second connecting block 25 is fixedly connected to the bottom of the protective box 1, and the upper end of the first heat dissipation fan 24 is fixedly connected with a heat absorbing plate 23, and the upper end of the heat absorbing plate 23 is in contact with the bottom of the main board 13.

[0042] Through the above structural design, it can be known that the heat generated by the main board 13 when the electrolytic capacitor plate body 9 is in operation is cooled by the heat absorbing plate 23 on the lower end of the main board 13, and the heat generated by the main board 13 can be quickly cooled down by the cooling of the heat absorbing plate 23, and then the heat is dissipated by the first cooling fan 24 on the end of the heat absorbing plate 23 that releases heat, and the heat of the heat absorbing plate 23 is discharged from the position of the second air vent 12, and then when the temperature of the main board 13 is too high, the temperature of the main board 13 can be quickly cooled down by the second heat dissipation mechanism 11.

[0043] Specifically, the first heat dissipation mechanism 6 includes a second connecting plate 32, which is located at the upper end of the box cover 5 and fixedly connected to the box cover 5. Two installation grooves are opened at the end of the second connecting plate 32, and the two installation grooves correspond to the first grooves. A second heat dissipation fan 33 is installed inside the installation groove.

[0044] Specifically, the refrigeration mechanism 8 includes a refrigeration box 34, which is fixed at the lower end of the box cover 5. A plurality of heat sinks 36 are fixedly connected to the upper end of the refrigeration box 34. One end of the heat sink 36 away from the refrigeration box 34 passes through the box cover 5 and extends to the outer side of the upper end of the box cover 5. A refrigeration pipe 35 is fixedly connected to one side of the refrigeration box 34 close to the first slot, and the refrigeration pipe 35 corresponds to the position of the first slot.

[0045] Through the above-mentioned structural design, it can be known that when it is necessary to quickly dissipate the temperature of the upper end of the electrolytic capacitor plate main body 9, the liquid inside the refrigeration box 34 can be cooled through the heat sink 36, and then the cooled liquid can cool the inside of the protective box 1 through the refrigeration pipe 35, and then the two second cooling fans 33 on the second connecting plate 32 can be started, and then after the second cooling fan 33 is started, the second cooling fan 33 can be used to blow air to the inside of the protective box 1, and then the cold air emitted by the refrigeration pipe 35 can be blown to the main board 13, and then the main board 13 and the electrolytic capacitor block 14 can be cooled.

[0046] Embodiment 2:

[0047] The novel motor controller heat dissipation device provided in Example 1 is further optimized. Specifically, Figure 7 As shown, the first limiting mechanism 4 includes a second fixed block 29 and a buckling block 37. The number of the second fixed blocks 29 is two. The two second fixed blocks 29 are respectively fixed at the two end positions inside the second slot. A second round rod 30 is arranged between the two second fixed blocks 29. The two ends of the second round rod 30 are respectively fixedly connected to the second fixed blocks 29 at the two ends. The third connecting block 28 is rotatably connected to the outer side of the second round rod 30 and located between the two second fixed blocks 29. The outer side of the third connecting block 28 is fixedly connected to the first connecting plate 27. The buckling block 37 is fixedly connected to the protective box body 1. The end of the first connecting plate 27 away from the third connecting block 28 is buckled with the buckling block 37. The outer side of the second round rod 30 and the two ends of the third connecting block 28 are fixedly connected with a torsion spring 31. The end of the torsion spring 31 away from the third connecting block 28 is fixedly connected to the second fixed block 29 at the same end.

[0048] Through the above structural design, it can be known that when it is necessary to open the box cover 5 and the protective box body 1, the lower end of the first connecting plate 27 can be pulled to the side away from the protective box body 1, so that the first connecting plate 27 can be rotated through the third connecting block 28 with the center of the second round rod 30 as the axis. The rotation of the first connecting plate 27 separates the fastening of the first connecting plate 27 and the snap-fit ​​block 37. At the same time, when the third connecting block 28 rotates, the third connecting block 28 squeezes the torsion spring 31 at both ends, and the torsion spring 31 stores the squeezing force. After the first connecting plate 27 is separated from the snap-fit ​​block 37, the box cover 5 can be opened from the closure of the protective box body 1. At the same time, the torsion spring 31 releases the stored force to drive the first connecting plate 27 to reset. The first connecting plate 27 can be reset to wait for the next limit.

Claims

1. A novel motor controller heat dissipation device, characterized in that: The invention comprises a protective box (1), wherein the four end corners of the lower end of the protective box (1) are all fixedly connected to support columns (2), one side of the upper end of the protective box (1) is fixedly connected to a first round rod (7), the upper end of the protective box (1) is provided with a box cover (5), one side of the lower end of the box cover (5) is rotatably connected to the first round rod (7), the end of the box cover (5) is provided with a first notch, the upper end of the box cover (5) and corresponding to the first notch are provided with a first heat dissipation mechanism (6), the lower end of the box cover (5) and corresponding to the first notch are provided with a first heat dissipation mechanism (6). A refrigeration mechanism (8) is arranged at the position, an electrolytic capacitor plate body (9) is arranged inside the protective box (1), first air vents (3) are provided on both sides of the protective box (1), a second air vent (12) is provided at the bottom of the protective box (1), a second heat dissipation mechanism (11) is arranged inside the protective box (1) and at the lower end of the electrolytic capacitor plate body (9), second notches are provided at both ends of the box cover (5) on the side away from the first round rod (7), and a first limiting mechanism (4) is provided inside the second notch.

2. A novel motor controller heat dissipation device according to claim 1, characterized in that: The electrolytic capacitor plate body (9) comprises a main board (13), a plurality of electrolytic capacitor blocks (14) are mounted on the upper end of the main board (13), handles (15) are fixedly connected to both sides of the upper end of the main board (13), second limiting mechanisms (16) are arranged at both ends of both sides of the main board (13), and first sliding grooves (10) are arranged inside the protective box (1) and at positions corresponding to the second limiting mechanisms (16).

3. A novel motor controller heat dissipation device according to claim 2, characterized in that: The second limiting mechanism (16) comprises a first connecting block (17), the first connecting block (17) being fixedly connected to the main board (13), the first connecting block (17) being slidably connected to the first slide groove (10), a second slide groove (18) being provided at an end of the first connecting block (17), a spring (19) being arranged inside the second slide groove (18), both ends of the spring (19) being fixedly connected to plug-in blocks (20), the plug-in block (20) being slidably connected to the second slide groove (18), one end of the plug-in block (20) away from the spring (19) being plug-connected to the inside of the first slide groove (10), upper and lower ends of one end of the plug-in block (20) located inside the second slide groove (18) being fixedly connected to a slider (21), upper and lower ends inside the second slide groove (18) being provided with a third slide groove (22) corresponding to the slider (21), the slider (21) being slidably connected to the third slide groove (22).

4. A novel motor controller heat dissipation device according to claim 2, characterized in that: The second heat dissipation mechanism (11) comprises a first heat dissipation fan (24), the first heat dissipation fan (24) is located inside the protective box (1) and corresponds to the second air vent (12), both sides of the lower end of the first heat dissipation fan (24) are fixedly connected with second connecting blocks (25), both ends of the lower end of the second connecting block (25) are fixedly connected with first fixing blocks (26), one end of the first fixing block (26) away from the second connecting block (25) is fixedly connected to the bottom of the protective box (1), the upper end of the first heat dissipation fan (24) is fixedly connected with a heat absorbing plate (23), and the upper end of the heat absorbing plate (23) is in contact with the bottom of the main board (13).

5. A novel motor controller heat dissipation device according to claim 1, characterized in that: The first limiting mechanism (4) comprises a second fixing block (29) and a buckling block (37), the number of the second fixing blocks (29) being two, the two second fixing blocks (29) being respectively fixed at two end positions inside the second notch, a second round rod (30) being arranged between the two second fixing blocks (29), the two ends of the second round rod (30) being respectively fixedly connected to the second fixing blocks (29) at the two ends, and a second round rod (30) being rotatably connected on the outer side of the second round rod (30) and at a position located between the two second fixing blocks (29). Three connecting blocks (28), the outer side of the third connecting block (28) is fixedly connected with a first connecting plate (27), the buckling block (37) is fixedly connected to the protective box (1), one end of the first connecting plate (27) away from the third connecting block (28) is buckled and connected to the buckling block (37), the outer side of the second round rod (30) and both ends of the third connecting block (28) are fixedly connected with a torsion spring (31), and one end of the torsion spring (31) away from the third connecting block (28) is fixedly connected to the second fixed block (29) at the same end.

6. A novel motor controller heat dissipation device according to claim 1, characterized in that: The first heat dissipation mechanism (6) comprises a second connecting plate (32), the second connecting plate (32) is located at the upper end of the box cover (5) and is fixedly connected to the box cover 5(), two installation grooves are provided at the end of the second connecting plate (32), both of the two installation grooves correspond to the first notch, and a second heat dissipation fan (33) is installed inside the installation groove.

7. A novel motor controller heat dissipation device according to claim 1, characterized in that: The refrigeration mechanism (8) comprises a refrigeration box (34), the refrigeration box (34) is fixed to the lower end of the box cover (5), the upper end of the refrigeration box (34) is fixedly connected to a plurality of heat sinks (36), one end of the heat sink (36) away from the refrigeration box (34) passes through the box cover (5) and extends to the outer side of the upper end of the box cover (5), and a refrigeration pipe (35) is fixedly connected to one side of the refrigeration box (34) close to the first notch, and the position of the refrigeration pipe (35) corresponds to the first notch.

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