Energy-saving self-heat-dissipation brushless motor

Abstract

This invention symmetrically arranges several local heat dissipation blocks on the motor housing. Each local heat dissipation block has a cavity filled with coolant. Both sides of each cavity are connected to a second annular cavity and a first annular cavity via a delivery pipe. A first sealing component pipe is installed on the first cooling ring, and a second sealing component is also installed on the first cooling ring. A temperature sensor is fixed to the motor housing at the location of each local heat dissipation block. A control box is fixed to the bottom of the motor housing. When a temperature sensor detects that the local temperature exceeds a set value, it sends a feedback to the control box. The control box then controls the corresponding second sealing component to open the corresponding delivery pipe and seal all the heat dissipation pipes. At this time, the coolant circulation at the heat dissipation pipe location is stopped, and the coolant flows through the corresponding local heat dissipation block to achieve circulation, thereby dissipating heat from the locally high-temperature areas on the motor housing. This significantly improves the heat dissipation efficiency of the locally high-temperature areas on the motor housing and saves energy.

Description

Technical Field

[0001] This invention relates to the field of electric motors, specifically to an energy-saving self-heating brushless electric motor. Background Technology

[0002] Brushless motors are a common type of mechatronics product. Compared to traditional motors, their biggest feature is the absence of brushes, and their advantages are high efficiency and steady-state operation.

[0003] For some brushless motors that need to maintain high power operation for a long time, additional heat dissipation methods are very important. The common technical means are to add heat dissipation fins or fans to the surface of the brushless motor for cooling. Of course, liquid cooling is currently the most effective method.

[0004] However, current methods for cooling brushless motors are mostly based on overall cooling. When a brushless motor experiences severe localized overheating, it often cannot provide targeted cooling to the affected area, resulting in poor cooling performance and wasted energy. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving, self-cooling brushless motor to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an energy-saving self-heating brushless motor, comprising a motor housing and a motor cover, wherein a first cooling ring and a second cooling ring are fixedly installed on the motor housing, and an electric fan is fixedly installed inside the motor cover;

[0007] Several heat dissipation fins are fixed on the top and left and right sides of the motor housing between the second cooling ring and the first cooling ring. A heat dissipation pipe is fixedly arranged between the heat dissipation fins on the left and right sides to connect the first cooling ring and the second cooling ring.

[0008] Coolant is contained in the first cooling ring and the second cooling ring. A circulation assembly is installed between the second cooling ring and the second cooling ring to circulate and transport the coolant in the first cooling ring and the second cooling ring.

[0009] Two local heat dissipation components are symmetrically arranged on the motor housing. Each local heat dissipation component includes several local heat dissipation blocks fixed on the motor housing. The local heat dissipation blocks are distributed at intervals between the first cooling ring and the second cooling ring. Each local heat dissipation block has a cavity, which is also filled with coolant. Both sides of the cavity are fixedly connected to the second ring cavity and the first ring cavity through a delivery pipe, respectively.

[0010] A first sealing assembly, matching the number of delivery pipes, is installed on the first cooling ring to seal or open the corresponding delivery pipes. A second sealing assembly is installed on the first cooling ring to seal or open the heat dissipation pipes on the left and right sides. A temperature sensor is fixed to the motor housing at the location of each local heat dissipation block. A control box is fixed to the bottom of the motor housing. The temperature sensors are used to detect the temperature at local locations on the motor housing. When a temperature sensor detects that the local temperature exceeds a set value, it feeds back to the control box. The control box then controls the corresponding second sealing assembly to open the corresponding delivery pipe and seal all the heat dissipation pipes. At this time, the circulation of coolant at the location of the heat dissipation pipe is stopped, and the coolant flows through the corresponding local heat dissipation block to achieve circulation.

[0011] Preferably, the circulation assembly includes a water pump fixed on the motor housing, one end of the water pump being fixedly connected to the second cooling ring via a water pump pipe, and the other end of the water pump being fixedly connected to the first cooling ring via a water pump pipe.

[0012] Preferably, a second annular cavity is formed within the second cooling ring, and a first annular cavity is formed within the first cooling ring, with both the second and first annular cavities filled with coolant.

[0013] Preferably, the coolant is deionized water, which has good thermal conductivity and low cost, and corrosion inhibitors are added to it to prevent rusting.

[0014] Preferably, two fixing frames are symmetrically fixed on the first cooling ring; the second sealing assembly includes a plurality of first telescopic controllers fixedly disposed inside the fixing frames, the first telescopic controllers controlling a first telescopic rod, the first telescopic rod being inserted into the first ring cavity, and a first plug being fixed to the end of the first telescopic rod, the first plug blocking one of the delivery pipes.

[0015] Preferably, the first sealing assembly includes a second telescopic controller fixed inside the fixed frame. The second telescopic controller controls a second telescopic rod, which is inserted into the first annular cavity. The end of the second telescopic rod is fixed with a second plug. In the initial state, the heat dissipation pipe is connected to the first annular cavity.

[0016] Preferably, waterproofing treatment is required between the second telescopic rod, the first telescopic rod, and the first cooling ring.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. The present invention includes a motor housing, a motor cover fixedly installed at the end of the motor housing, a first cooling ring fixedly installed at the position of the motor housing near the motor shaft, an electric fan fixedly installed inside the motor cover, and a second cooling ring fixedly installed at the end of the motor housing near the electric fan.

[0019] Several heat dissipation fins are fixed on the top and left and right sides of the motor housing between the No. 2 cooling ring and the No. 1 cooling ring. A heat dissipation pipe is set between the heat dissipation fins on the left and right sides to connect the No. 1 cooling ring and the No. 2 cooling ring.

[0020] Coolant is contained in cooling ring 1 and cooling ring 2. A circulation assembly is installed between cooling ring 2 and cooling ring 2. The circulation assembly circulates the coolant in cooling ring 1 and cooling ring 2. The coolant is continuously transported through heat dissipation pipes to absorb heat from the motor housing and achieve heat dissipation.

[0021] 2. Two local heat dissipation components are also symmetrically arranged on the motor housing. The local heat dissipation components include several local heat dissipation blocks fixed on the motor housing. The local heat dissipation blocks are distributed at intervals between the first cooling ring and the second cooling ring. A block cavity is opened in the local heat dissipation block, and the block cavity is also filled with coolant. Both sides of the block cavity are fixedly connected to the second ring cavity and the first ring cavity respectively through a delivery pipe.

[0022] A first-level blocking assembly, matching the number of delivery pipes, is installed on the first cooling ring to block or open the corresponding delivery pipes. A second-level blocking assembly is installed on the first cooling ring to block or open the heat dissipation pipes on the left and right sides. A temperature sensor is fixed to the motor housing at the location of each local heat dissipation block. A control box is fixed at the bottom of the motor housing. The temperature sensors detect the temperature at local locations on the motor housing. When a temperature sensor detects that the local temperature exceeds a set value, it sends feedback to the control box. The control box then controls the corresponding second-level blocking assembly to open the corresponding delivery pipe and block all the heat dissipation pipes. At this time, the circulation of coolant at the location of the heat dissipation pipes is stopped. The coolant then flows through the corresponding local heat dissipation block to achieve circulation, thereby dissipating heat from the local high-temperature locations on the motor housing. This greatly improves the heat dissipation efficiency of the local high-temperature locations on the motor housing, and the heat dissipation area is more concentrated, with no energy waste. Under the condition of limited heat dissipation power, it achieves an energy-saving effect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a first appearance schematic diagram of an embodiment of this application;

[0025] Figure 2 This is a second appearance schematic diagram of an embodiment of this application;

[0026] Figure 3 This is a third appearance diagram of an embodiment of this application;

[0027] Figure 4 This is a structural breakdown diagram of an embodiment of this application;

[0028] Figure 5 This is a first cross-sectional view of an embodiment of this application;

[0029] Figure 6 This is a second cross-sectional view of an embodiment of this application;

[0030] Figure 7 This is a third cross-sectional view of an embodiment of this application.

[0031] In the diagram: 11. Motor housing; 12. Cooling ring 1; 13. Heat dissipation fins; 14. Motor cover; 15. Water pump; 16. Water pump pipe 2; 17. Water pump pipe 1; 18. Heat dissipation pipe; 19. Local heat dissipation block; 20. Temperature sensor; 21. Cooling ring 2; 22. Ring cavity 2; 23. Block cavity; 24. Ring cavity 1; 25. Fixing frame; 26. Telescopic controller 2; 27. Telescopic rod 2; 28. Plug 2; 30. Telescopic controller 1; 31. Telescopic rod 1; 32. Plug 1; 33. Delivery pipe; 34. Control box; 35. Electric fan; 37. Local heat dissipation assembly. Detailed Implementation

[0032] Example 1:

[0033] Combined with appendix Figures 1-7 The energy-saving self-heating brushless motor includes a motor housing 11, a motor cover 14 fixedly installed at the end of the motor housing 11, a first cooling ring 12 fixedly installed at the position of the motor housing 11 near the motor shaft, an electric fan 35 fixedly installed inside the motor cover 14, and a second cooling ring 21 fixedly installed at the end of the motor housing 11 near the electric fan 35.

[0034] Several heat dissipation fins 13 are fixed on the top and left and right sides of the motor housing 11 between the second cooling ring 21 and the first cooling ring 12. A heat dissipation pipe 18 is provided between the heat dissipation fins 13 on the left and right sides to connect the first cooling ring 12 and the second cooling ring 21.

[0035] Coolant is contained in the first cooling ring 12 and the second cooling ring 21. A circulation assembly is installed between the second cooling ring 21 and the second cooling ring 21. The circulation assembly circulates and transports the coolant in the first cooling ring 12 and the second cooling ring 21. The coolant is continuously transported through the heat dissipation pipe 18 to absorb the heat of the motor housing 11 and achieve heat dissipation.

[0036] The circulation assembly includes a water pump 15 fixed on the motor housing 11. One end of the water pump 15 is fixedly connected to the second cooling ring 21 through a water pump pipe 17, and the other end of the water pump 15 is fixedly connected to the first cooling ring 12 through a water pump pipe 16. The water pump 15 serves as a power source to realize the circulation of coolant in the first cooling ring 12 and the second cooling ring 21.

[0037] The electric fan 35 has its own motor, which, after starting, dissipates heat from the coolant in the second cooling ring 21 and each of the heat dissipation fins 13.

[0038] A second annular cavity 22 is formed in the second cooling ring 21, and a first annular cavity 24 is formed in the first cooling ring 12. The second annular cavity 22 and the first annular cavity 24 are filled with coolant.

[0039] In addition, two local heat dissipation assemblies 37 are symmetrically arranged on the motor housing 11. Each local heat dissipation assembly 37 includes several local heat dissipation blocks 19 fixed on the motor housing 11. The local heat dissipation blocks 19 are distributed at intervals between the first cooling ring 12 and the second cooling ring 21. Each local heat dissipation block 19 has a cavity 23, which is also filled with coolant. Both sides of the cavity 23 are fixedly connected to the second ring cavity 22 and the first ring cavity 24 respectively through a delivery pipe 33.

[0040] It should be noted that deionized water is generally used as coolant because it has good thermal conductivity and low cost. Corrosion inhibitors can be added to it to prevent rusting.

[0041] A first-level sealing assembly, matching the number of delivery pipes 33, is installed on the first cooling ring 12 to seal or open the corresponding delivery pipes 33. A second-level sealing assembly is installed on the first cooling ring 12 to seal or open the heat dissipation pipes 18 on the left and right sides. A temperature sensor 20 is fixed to the motor housing 11 at the location of each local heat dissipation block 19. A control box 34 is fixed to the bottom of the motor housing 11. The temperature sensor 20 is used to detect the temperature at local locations on the motor housing 11. When a temperature sensor 20 detects a local temperature... When the set value is exceeded, feedback is sent to the control box 34, which controls the corresponding second sealing component to open the corresponding delivery pipe 33 and seal all the heat dissipation pipes 18. At this time, the circulation of coolant at the location of the heat dissipation pipe 18 is stopped, and the coolant flows through the corresponding local heat dissipation block 19 to achieve circulation, thereby dissipating heat from the local high-temperature location on the motor housing 11. This greatly improves the heat dissipation efficiency of the local high-temperature location on the motor housing 11, and the heat dissipation area is more concentrated, with no energy waste. Under the condition of limited heat dissipation power, it achieves the effect of energy saving.

[0042] Example 2:

[0043] The difference between this embodiment and embodiment one is that two fixing brackets 25 are symmetrically fixed on the first cooling ring 12;

[0044] The second sealing assembly includes several first telescopic controllers 30 fixedly installed inside the fixed frame 25. Each first telescopic controller 30 controls a first telescopic rod 31, which is inserted into the first annular cavity 24. A first plug 32 is fixed to the end of the first telescopic rod 31, and the first plug 32 blocks one of the delivery pipes 33. To enable the delivery pipe 33 to connect to the first annular cavity 24, the corresponding first telescopic controller 30 is activated to retract the first telescopic rod 31, and the first plug 32 no longer blocks the corresponding delivery pipe 33.

[0045] The first sealing assembly includes a second telescopic controller 26 fixed inside the fixing frame 25. The second telescopic controller 26 controls a second telescopic rod 27, which is inserted into the first annular cavity 24. A second plug 28 is fixed to the end of the second telescopic rod 27. In the initial state, the heat dissipation pipe 18 is connected to the first annular cavity 24. When the heat dissipation pipe 18 needs to be sealed, the second telescopic controller 26 is activated, the second telescopic rod 27 is retracted, and the second plug 28 blocks the heat dissipation pipe 18.

[0046] It should be noted that waterproofing treatment should be applied to the space between the second telescopic rod 27, the first telescopic rod 31, and the first cooling ring 12. Waterproof linear bearings can be considered to prevent coolant from overflowing.

[0047] How to use:

[0048] When the motor is working, each of the temperature sensors 20 monitors the temperature of each part of the motor housing 11 in real time and feeds it back to the control box 34.

[0049] The electric fan 35 is controlled to start, and dissipates heat from the coolant in the second cooling ring 21 and each of the heat dissipation fins 13.

[0050] The two water pumps 15 are controlled to start. After the water pumps 15 start, the coolant is circulated. The circulation path of the coolant is water pump 15, water pump pipe 17, cooling ring 21, heat dissipation pipe 18, cooling ring 12, and water pump pipe 2 16. The main cooling effect is achieved by the flow of coolant in the heat dissipation pipe 18, which carries away the heat from the surface of the heat dissipation fins 13 and achieves uniform heat dissipation of the motor housing 11.

[0051] When the temperature sensor 20 detects overheating in the corresponding part of the motor housing 11, the first annular cavity 24 controls the second telescopic controller 26 to start, the second telescopic rod 27 is retracted, and the second plug 28 blocks the heat dissipation pipe 18. At this time, the heat dissipation pipes 18 on both sides are blocked. In addition, the control box 34 controls the corresponding first telescopic controller 30 to start, so that the first telescopic rod 31 is retracted, and the first plug 32 no longer blocks the corresponding delivery pipe 33. At this time, the coolant circulation path at the heat dissipation pipes 18 on both sides is closed. Instead, the coolant circulation path is water pump 15, water pump pipe 17, second cooling ring 21, local heat dissipation block 19 at the location of the overheating temperature sensor 20, first cooling ring 12, and water pump pipe 16. The heat dissipation changes from uniform heat dissipation to local heat dissipation. When the temperature sensor 20 detects that the temperature returns to the normal range, the device resets, the local heat dissipation block 19 is closed, and the heat dissipation pipes 18 on both sides are connected, and uniform heat dissipation resumes.

[0052] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand and implement the present invention. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving self-cooling brushless motor, comprising a motor housing (11) and a motor cover (14), wherein a first cooling ring (12) and a second cooling ring (21) are fixedly installed on the motor housing (11), and an electric fan (35) is fixedly installed inside the motor cover (14), characterized in that: Several heat dissipation fins (13) are fixed on the top and left and right sides of the motor housing (11) between the second cooling ring (21) and the first cooling ring (12). A heat dissipation pipe (18) connecting the first cooling ring (12) and the second cooling ring (21) is set between the heat dissipation fins (13) on the left and right sides. Coolant is contained in the first cooling ring (12) and the second cooling ring (21). A circulation assembly is installed between the second cooling ring (21) and the second cooling ring (21) to circulate and transport the coolant in the first cooling ring (12) and the second cooling ring (21). Two local heat dissipation components (37) are symmetrically arranged on the motor housing (11). The local heat dissipation components (37) include several local heat dissipation blocks (19) fixed on the motor housing (11). The local heat dissipation blocks (19) are distributed at intervals between the first cooling ring (12) and the second cooling ring (21). A block cavity (23) is opened in the local heat dissipation block (19). The block cavity (23) is also filled with coolant. Both sides of the block cavity (23) are fixedly connected to the second ring cavity (22) and the first ring cavity (24) respectively through a delivery pipe (33). A first sealing assembly with the same number of delivery pipes (33) is set on the first cooling ring (12) to seal or open the corresponding delivery pipes (33). A second sealing assembly is set on the first cooling ring (12) to seal or open the heat dissipation pipes (18) on the left and right sides. A temperature sensor (20) is fixed on the motor housing (11) at the position of each local heat dissipation block (19). A control box (34) is fixed at the bottom of the motor housing (11). When a temperature sensor (20) detects that the local temperature exceeds the set value, the control box (34) controls the corresponding second sealing assembly to open the corresponding delivery pipe (33) and seals all the heat dissipation pipes (18) on the first sealing assembly. At this time, the circulation of coolant at the position of heat dissipation pipe (18) is blocked, and the coolant flows through the corresponding local heat dissipation block (19) to achieve circulation.

2. The energy-saving self-cooling brushless motor according to claim 1, characterized in that: The circulation assembly includes a water pump (15) fixed on the motor housing (11). One end of the water pump (15) is fixedly connected to the second cooling ring (21) through a water pump pipe (17), and the other end of the water pump (15) is fixedly connected to the first cooling ring (12) through a water pump pipe (16).

3. The energy-saving self-heating brushless motor according to claim 1, characterized in that: A second annular cavity (22) is formed in the second cooling ring (21), and a first annular cavity (24) is formed in the first cooling ring (12). The second annular cavity (22) and the first annular cavity (24) are filled with coolant.

4. The energy-saving self-heating brushless motor according to claim 3, characterized in that: The coolant used is deionized water, which has good thermal conductivity and low cost. Corrosion inhibitors are added to it to prevent rusting.

5. The energy-saving self-heating brushless motor according to claim 4, characterized in that: Two fixing brackets (25) are symmetrically fixed on the first cooling ring (12); the second sealing assembly includes several first telescopic controllers (30) fixedly installed inside the fixing brackets (25), the first telescopic controllers (30) control a first telescopic rod (31), the first telescopic rod (31) is inserted into the first ring cavity (24), the end of the first telescopic rod (31) is fixed with a first plug (32), and the first plug (32) blocks one of the delivery pipes (33).

6. The energy-saving self-cooling brushless motor according to claim 5, characterized in that: The first sealing assembly includes a second telescopic controller (26) fixed inside the fixed frame (25). The second telescopic controller (26) controls a second telescopic rod (27). The second telescopic rod (27) is inserted into the first annular cavity (24). The end of the second telescopic rod (27) is fixed with a second plug (28). In the initial state, the heat dissipation pipe (18) is connected to the first annular cavity (24).

7. An energy-saving self-heating brushless motor according to claim 6, characterized in that: Waterproofing treatment should be applied to the space between the second telescopic rod (27), the first telescopic rod (31), and the first cooling ring (12).

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