Efficient heat dissipation type motor

Abstract

The utility model relates to an efficient heat dissipation type motor, which comprises a stator and a main shaft, the outer end of the stator is fixedly connected with a heat dissipation shell, the outer end of the heat dissipation shell is fixedly connected with a plurality of heat dissipation fins which are distributed in a circumferential array around the axis of the stator, and the outer end of the heat dissipation shell is fixedly connected with a front end cover through screws. A heat absorption cavity is formed in the front end cover, a plurality of hollow heat absorption rings are fixedly connected to the end, close to the stator, of the front end cover, the heat absorption cavity and the heat absorption rings are filled with phase change materials, an overflowing ring is fixedly connected to the end, away from the stator, of the front end cover, and a plurality of phase change circulating pipes are fixedly connected to the outer end of the front end cover. According to the utility model, the collaborative design of multiple heat dissipation mechanisms is adopted, the heat dissipation efficiency of the motor is significantly improved through the organic combination of phase change material heat storage, forced air cooling and heat conduction and dissipation, and the technical problem of insufficient heat dissipation of a high-power motor is effectively solved.

Description

Technical Field

[0001] This utility model relates to a high-efficiency heat-dissipating electric motor, and in particular to a high-efficiency heat-dissipating electric motor applied in the field of motor heat dissipation technology. Background Technology

[0002] Electric motors generate a significant amount of heat during operation. Insufficient heat dissipation can lead to overheating, affecting motor performance and lifespan. Currently, common electric motor cooling methods include natural cooling and forced air cooling, but both have limitations. Natural cooling has low efficiency and is insufficient for the cooling needs of high-power motors; while forced air cooling alone provides better cooling, localized overheating may still occur during sudden load changes or prolonged high-load operation. Furthermore, existing cooling structures are often relatively simple, failing to fully utilize multiple heat transfer pathways, resulting in low overall cooling efficiency.

[0003] Chinese utility model patent CN218124501U discloses a cooling motor, comprising: a main body, fan blades, and an annular protective cover. The main body has an output shaft at one end; the fan blades are mounted on the output shaft with their outlet side facing the main body; the annular protective cover is movably connected to the output shaft, and the fan blades are located inside the annular protective cover. In this application, by setting an annular protective cover movably connected to the output shaft and placing the fan blades inside it, the rotation of the output shaft drives the fan blades to rotate. The annular protective cover, movably connected to the output shaft, remains stationary relative to the fan blades, reducing the power loss of the output shaft. The outlet side of the fan blades blows cooling airflow towards the main body to dissipate heat. The annular protective cover not only protects the fan blades but also reduces the influence of external airflow on the cooling airflow, allowing the cooling airflow to be more concentrated and directed towards the main body of the cooling motor, thus improving the cooling effect.

[0004] While the above design solves the basic heat dissipation and airflow protection problems of the motor, it still has certain limitations. For example, it does not have multiple heat dissipation mechanisms and relies solely on a single air-cooling method, which has limited heat dissipation effect under high load conditions. At the same time, it lacks targeted heat dissipation measures for key components such as bearings, which can easily lead to local overheating. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is to provide a high-efficiency heat dissipation motor with multiple heat dissipation mechanisms and high heat dissipation efficiency. By combining phase change materials with forced convection, uniform cooling of various components of the motor is achieved, effectively solving the problem of local overheating and improving the operational reliability and service life of the motor.

[0006] To address the aforementioned problems, this utility model provides a high-efficiency heat-dissipating electric motor, comprising a stator and a main shaft. A heat dissipation housing is fixedly connected to the outer end of the stator. Multiple heat dissipation fins arranged in a circular array around the stator axis are fixedly connected to the outer end of the heat dissipation housing. A front end cover is fixedly connected to the outer end of the heat dissipation housing by screws. A heat-absorbing cavity is formed inside the front end cover. Multiple hollow heat-absorbing rings are fixedly connected to the end of the front end cover near the stator. Both the heat-absorbing cavity and the heat-absorbing rings are filled with phase change material. The opening of the heat-absorbing rings communicates with the heat-absorbing cavity. Multiple rectangular flow guide frames arranged in a circular array are fixedly connected to the inner wall of the heat-absorbing cavity. A current-passing ring is fixedly connected to the end of the front end cover away from the stator. The rectangular flow guide frames pass through the front end cover and the heat-absorbing rings and communicate with the current-passing ring. A front bearing is snapped into the inner end of the front end cover. The inner wall of the front bearing is fixedly connected to the outer end of the main shaft. A circulating fan is fixedly connected to the outer end of the main shaft.

[0007] As a further improvement of this application, the outer end of the front cover is fixedly connected with a plurality of phase change circulation tubes arranged in a circular array around the axis of the front cover. The phase change circulation tubes are connected to the heat absorption cavity inside the front cover. The plurality of phase change circulation tubes arranged in a circular array are in contact with the outer wall of the heat dissipation shell. The plurality of phase change circulation tubes are arranged at equal intervals in the grooves formed by the plurality of heat dissipation fins. When the heat dissipation fan is running, it can dissipate heat on the heat dissipation fins and the phase change circulation tubes at the same time.

[0008] As a further improvement of this application, the outer end of the flow ring is fixedly connected to a plurality of heat pipes arranged in a circumferential array around the flow ring. The heat pipes are interconnected with the plurality of flow rings arranged in a circumferential array. The plurality of heat pipes arranged in a circumferential array are in contact with the outer wall of the heat sink housing. The plurality of heat pipes are arranged at equal intervals in the grooves formed by the plurality of heat sink fins, so that the heat sinks can dissipate heat from the heat sink fins at the same time as the heat sink is operating when the cooling fan is running.

[0009] As a further improvement of this application, a rear cover is fixedly connected to the end of the heat sink housing away from the front cover, a rear bearing is fixedly connected to the inner end of the rear cover, and a cooling fan is fixedly connected to the end of the spindle away from the rear bearing. The blades of the circulating fan and the cooling fan are both aerodynamically designed and nickel-plated to improve the heat dissipation effect.

[0010] As another improvement of this application, a first liquid storage ring and a second liquid storage ring are fixedly connected to the end of the phase change circulation tube. The first liquid storage ring is fixedly connected to a micro peristaltic pump through a pipe, and the other end of the pipe is fixedly connected to the second liquid storage ring. When dissipating heat, the phase change material is driven to circulate and dissipate heat in the phase change circulation tube by the micro peristaltic pump.

[0011] As a further improvement to this application, the end of the heat pipe passes through the rear end cover and communicates with the inside of the motor. The outer end of the first liquid storage ring is fixedly connected to a dust cover with multiple ventilation holes. When dissipating heat, the external cold air is initially filtered through the ventilation holes to prevent dust from entering the dust cover. At the same time, the part of the dust cover covering the heat dissipation fins can effectively prevent dust from falling into the grooves formed by the heat dissipation fins and affecting heat dissipation.

[0012] In summary, this solution has the following beneficial effects:

[0013] Employing a multi-layered, three-dimensional heat dissipation structure, the basic heat-conducting layer is constructed through a heat dissipation shell and heat dissipation fins. The phase change material within the heat absorption cavity and heat absorption ring enables rapid heat absorption and slow release. The rectangular flow guide frame and flow ring structure, in conjunction with a circulating fan, form an efficient cooling airflow circulation within the motor. Simultaneously, a micro peristaltic pump drives the phase change material to continuously flow in the liquid storage ring and phase change circulation pipe. Combined with the forced convection effect of the cooling fan, multiple channels for heat transfer are formed. Through the synergistic effect of multiple heat dissipation mechanisms, the motor's heat dissipation performance and efficiency are significantly improved, making it particularly suitable for the heat dissipation needs of high-power motors. Attached Figure Description

[0014] Figure 1 This is a first partial drawing of this application;

[0015] Figure 2 This is a second partial drawing of this application;

[0016] Figure 3 This is a third partial drawing of this application;

[0017] Figure 4 This is the fourth partial drawing of this application;

[0018] Figure 5 This is a front view of this application;

[0019] Figure 6 This is a cross-sectional view (AA) of this application;

[0020] Figure 7 This is a BB cross-sectional view of this application;

[0021] Figure 8 This is a CC sectional view of this application;

[0022] Figure 9 This is a schematic diagram of the overall structure of this application.

[0023] Explanation of the labels in the diagram:

[0024] 1. Stator; 2. Spindle; 3. Heat sink housing; 4. Heat sink fins; 5. Front end cover; 6. Heat absorption cavity; 7. Heat absorption ring; 8. Phase change material; 9. Rectangular guide frame; 10. Flow ring; 11. Front bearing; 12. Circulating fan; 13. Phase change circulation pipe; 14. Heat sink pipe; 15. Rear end cover; 16. Rear bearing; 17. Cooling fan; 18. First liquid storage ring; 19. Second liquid storage ring; 20. Miniature peristaltic pump; 21. Dust cover; 22. Ventilation hole; Detailed Implementation

[0025] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0026] Figure 1-9 The diagram illustrates a high-efficiency heat-dissipating electric motor, comprising a stator 1 and a main shaft 2. A heat dissipation housing 3 is fixedly connected to the outer end of the stator 1. Multiple heat dissipation fins 4, arranged in a circular array around the axis of the stator 1, are fixedly connected to the outer end of the heat dissipation housing 3. The heat dissipation fins 4 are made of aluminum alloy with high thermal conductivity and have undergone anodizing treatment to improve heat dissipation efficiency. A front end cover 5 is fixedly connected to the outer end of the heat dissipation housing 3 by screws. A heat-absorbing cavity 6 is formed inside the front end cover 5. Multiple hollow heat-absorbing rings 7 are fixedly connected to the end of the front end cover 5 near the stator 1. The heat-absorbing rings 7 have an annular cross-section, with their major axis parallel to the motor axis. This design can increase the... The contact area with the internal heat source of the motor is increased to accelerate heat dissipation. The interior of the heat absorption cavity 6 and the heat absorption ring 7 are filled with phase change material 8. The phase change material 8 is paraffin wax, which has good phase change heat storage performance. The opening of the heat absorption ring 7 is connected to the heat absorption cavity 6. Multiple rectangular guide frames 9 arranged in a circular array are fixedly connected to the inner wall of the heat absorption cavity 6. The end of the front cover 5 away from the stator 1 is fixedly connected to the overflow ring 10. The rectangular guide frames 9 pass through the front cover 5 and the heat absorption ring 7 and are connected to the overflow ring 10. The inner end of the front cover 5 is snapped with the front bearing 11. The inner wall of the front bearing 11 is fixedly connected to the outer end of the main shaft 2. The outer end of the main shaft 2 is fixedly connected to the circulating fan 12.

[0027] Multiple phase change circulation tubes 13 arranged in a circular array around the axis of the front cover 5 are fixedly connected to the outer end of the front cover 5. The phase change circulation tubes 13 are connected to the heat absorption cavity 6 inside the front cover 5. The multiple phase change circulation tubes 13 arranged in a circular array are in contact with the outer wall of the heat dissipation shell 3. The multiple phase change circulation tubes 13 are arranged at equal intervals in the groove formed by multiple heat dissipation fins 4. When the cooling fan 17 is running, it can dissipate heat on the heat dissipation fins 4 and the phase change circulation tubes 13 at the same time.

[0028] Multiple heat pipes 14 arranged in a circular array around the outer end of the flow ring 10 are fixedly connected. The heat pipes 14 are interconnected with the multiple flow rings 10 arranged in a circular array. The multiple heat pipes 14 arranged in a circular array are in contact with the outer wall of the heat sink housing 3. The multiple heat pipes 14 are arranged at equal intervals in the groove formed by the multiple heat sink fins 4. When the cooling fan 17 is running, it can dissipate heat on the heat sink fins 4 and heat the heat pipes 14 at the same time.

[0029] The end of the heat sink 3 away from the front cover 5 is fixedly connected to the rear cover 15. The inner end of the rear cover 15 is fixedly connected to the rear bearing 16. The end of the spindle 2 away from the rear bearing 16 is fixedly connected to the cooling fan 17. The blades of the circulating fan 12 and the cooling fan 17 are both aerodynamically designed and nickel-plated to improve the heat dissipation effect.

[0030] The first liquid storage ring 18 and the second liquid storage ring 19 are fixedly connected to the end of the phase change circulation pipe 13. The first liquid storage ring 18 is fixedly connected to the micro peristaltic pump 20 through a pipe, and the other end of the pipe is fixedly connected to the second liquid storage ring 19.

[0031] The end of the heat dissipation pipe 14 passes through the rear end cover 15 and is connected to the inside of the motor. The outer end of the first liquid storage ring 18 is fixedly connected to a dust cover 21. Multiple ventilation holes 22 are opened on the dust cover 21. When dissipating heat, the phase change material is driven by the micro peristaltic pump 20 to circulate and dissipate heat in the phase change circulation pipe 13.

[0032] During operation, the motor generates heat, which can be dissipated from the motor through various means. The motor's operation drives the circulating fan 12, which in turn creates airflow between the stator 1 and the rotor. This airflow carries away the heat generated by the motor. The airflow enters through the rectangular guide frame 9, then through the flow ring 10, and finally flows into the heat dissipation pipe 14. The heat dissipation pipe 14 contacts the external environment for heat dissipation. Simultaneously, the convection generated by the cooling fan 17 accelerates the cooling of the heat dissipation pipe 14. The cooled air inside the heat dissipation pipe 14 then re-enters the motor through the rear end cover 15 for further cooling, thus circulating the heat dissipation process. Additionally, the heat generated by the stator 1 and rotor is absorbed by the phase change material 8 within the heat absorption cavity 6 and the heat absorption ring 7. The phase change material 8 in the heat absorption cavity 6 can also absorb the heat generated by the front bearing 11 and dissipate heat from the front bearing 11. After absorbing heat, the phase change material 8 changes from solid to liquid. At this time, the micro peristaltic pump 20 works to input the phase change material 8 in the first liquid storage ring 18 into the second liquid storage ring 19, so that the phase change material 8 circulates and continuously absorbs heat. When the phase change material 8 flows through the area between multiple heat dissipation fins 4 through the phase change circulation pipe 13, the convection generated by the cooling fan 17 dissipates heat and cools the phase change material 8 in the phase change circulation pipe 13. At the same time, the heat generated by the motor is also conducted to the heat dissipation fins 4 through the heat dissipation shell 3 for heat dissipation. The convection generated by the cooling fan 17 carries away the conducted heat. Multiple heat dissipation methods work together to improve heat dissipation efficiency.

[0033] In light of current practical needs, the above-described embodiments adopted in this application are not limited to this scope of protection. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A high-efficiency heat-dissipating electric motor, comprising a stator (1) and a main shaft (2), characterized in that: A heat dissipation shell (3) is fixedly connected to the outer end of the stator (1). A plurality of heat dissipation fins (4) arranged in a circular array around the axis of the stator (1) are fixedly connected to the outer end of the heat dissipation shell (3). A front end cover (5) is fixedly connected to the outer end of the heat dissipation shell (3) by screws. A heat absorption cavity (6) is opened inside the front end cover (5). A plurality of hollow heat absorption rings (7) are fixedly connected to the end of the front end cover (5) near the stator (1). The heat absorption cavity (6) and the heat absorption rings (7) are filled with phase change material (8). The opening is connected to the heat absorption cavity (6). The inner wall of the heat absorption cavity (6) is fixedly connected with a plurality of rectangular guide frames (9) arranged in a circular array. The end of the front cover (5) away from the stator (1) is fixedly connected to the flow ring (10). The rectangular guide frame (9) passes through the front cover (5) and the heat absorption ring (7) and is connected to the flow ring (10). The inner end of the front cover (5) is clamped with the front bearing (11). The inner wall of the front bearing (11) is fixedly connected to the outer end of the main shaft (2). The outer end of the main shaft (2) is fixedly connected with the circulating fan (12).

2. The high-efficiency heat-dissipating electric motor according to claim 1, characterized in that: The outer end of the front cover (5) is fixedly connected to a plurality of phase change circulation tubes (13) arranged in a circular array around the axis of the front cover (5), and the phase change circulation tubes (13) are connected to the heat absorption cavity (6) inside the front cover (5), and the plurality of phase change circulation tubes (13) arranged in a circular array are in contact with the outer wall of the heat dissipation shell (3), and the plurality of phase change circulation tubes (13) are arranged at equal intervals in the groove formed by the plurality of heat dissipation fins (4).

3. The high-efficiency heat-dissipating electric motor according to claim 1, characterized in that: The outer end of the flow ring (10) is fixedly connected to a plurality of heat dissipation pipes (14) arranged in a circular array around the flow ring (10), and the heat dissipation pipes (14) are interconnected with the plurality of flow rings (10) arranged in a circular array. The plurality of heat dissipation pipes (14) arranged in a circular array are in contact with the outer wall of the heat dissipation shell (3), and the plurality of heat dissipation pipes (14) are arranged at equal intervals in the groove formed by the plurality of heat dissipation fins (4).

4. The high-efficiency heat-dissipating electric motor according to claim 3, characterized in that: The end of the heat sink housing (3) away from the front end cover (5) is fixedly connected to the rear end cover (15). The end of the heat sink pipe (14) passes through the rear end cover (15) and communicates with the inside of the motor. The inner end of the rear end cover (15) is fixedly connected to the rear bearing (16). The end of the main shaft (2) away from the rear bearing (16) is fixedly connected to the cooling fan (17).

5. A high-efficiency heat-dissipating electric motor according to claim 2, characterized in that: The first liquid storage ring (18) and the second liquid storage ring (19) are fixedly connected to the end of the phase change circulation pipe (13). The first liquid storage ring (18) is fixedly connected to a micro peristaltic pump (20) through a pipe, and the other end of the pipe is fixedly connected to the second liquid storage ring (19).

6. The high-efficiency heat-dissipating electric motor according to claim 5, characterized in that: The outer end of the first liquid storage ring (18) is fixedly connected to a dust cover (21), and the dust cover (21) has multiple ventilation holes (22).

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