An intelligent temperature-controlled heat-dissipating rotor motor

By designing an annular cavity and a temperature-controlled phase change material seal on the stator of the rotor motor, the flow and heat exchange of thermal conductivity between the high-temperature cavity and the low-temperature cavity is achieved, and the problems of uneven temperature distribution of the stator and low heat dissipation efficiency are solved, which extends the service life and adapts to efficient heat dissipation under different loads.

CN119182252BActive Publication Date: 2025-03-21BC NEW ENERGY (TIANJIN) CO LTD
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Patent Information

Application Number
CN202411678407.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-03-21
Estimated Expiration
2044-11-22

AI Technical Summary

Technical Problem

The stator temperature distribution of existing rotor motors is uneven, and the heat dissipation structure of the motor housing cannot be fully utilized for uniform and efficient heat dissipation, resulting in heat accumulation and reduced service life.

Method used

An intelligent temperature-controlled and heat-sinking rotor motor is designed. By opening an annular cavity in the fixed ring of the stator, it is divided into a high-temperature cavity and a low-temperature cavity, and the sealing and deformation of the sealing sheet of the phase change material is controlled by using the temperature to realize the flow and heat exchange of thermal conductivity between the high-temperature cavity and the low-temperature cavity. After preliminary cooling, it is carried out efficiently in direct contact with the motor housing through the stator.

Benefits of technology

The initial cooling and efficient heat dissipation of the stator are achieved, the uniformity of temperature distribution is ensured, the service life of the rotor motor is extended, and the efficient heat dissipation under different load output powers is adapted.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of rotor motors, and in particular to an intelligent temperature-controlled heat-dissipating rotor motor, including a motor housing and an output shaft, etc.; the motor housing is rotatably connected to the output shaft. An annular cavity is provided in the fixed circular ring of the stator, and a plurality of heat insulation plates divide the annular cavity into individual chambers. The sealing of the temperature-controlled phase-change material sealing sheet forms a temperature gradient between adjacent chambers. The deformation of the temperature-controlled phase-change material sealing sheet and the flow of the heat-conducting fluid in the high-temperature chamber and the low-temperature chamber realize preliminary heat exchange, preliminary cooling of the stator, and temporary uniformity of the temperature on the side of the stator away from the winding core. Then, the stator is in direct contact with the motor housing, and the heat dissipation structure on the motor housing is fully utilized to dissipate the heat to the outside air, thereby realizing efficient heat dissipation of the heat-conducting fluid.
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Description

Technical Field

[0001] The present invention relates to the field of rotor motors, and in particular to an intelligent temperature-control and heat-dissipating rotor motor. Background Art

[0002] The rotor motor, also known as the permanent magnet synchronous motor, uses permanent magnets to provide excitation. Compared with ordinary motors, it eliminates the collector rings and brushes that are prone to problems. The rotor motor has high operating reliability, no excitation loss, and high motor efficiency.

[0003] In the prior art, metal sheets are generally added to the motor casing to facilitate the heat dissipation of the stator inside it, and a fan is used to dissipate the heat of the rotor and stator simultaneously. Since tooth-shaped protrusions are provided on the stator to fix the windings and concentrate the magnetic flux to enhance the magnetic field strength, when the current passes through the stator windings, the Joule heat generated by the current loss and the iron loss generated under the action of the alternating magnetic field cause the temperature of the rotor motor to rise, and the temperature of the location where the windings are provided is higher than the temperature of the location between the windings, resulting in uneven temperature distribution on the stator, and the heat dissipation structure of the motor casing cannot be fully utilized to dissipate the heat evenly outward, and the heat dissipation efficiency is low. In particular, when the load changes, heat accumulates and the heat cannot be discharged in time, and the service life of the rotor motor is reduced. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that the temperature on the stator is unevenly distributed, the heat dissipation structure of the motor housing cannot be fully utilized to dissipate heat evenly and efficiently, the accumulated heat cannot be discharged in time, and the service life of the rotor motor is reduced, the present invention provides an intelligent temperature control and heat dissipation rotor motor.

[0005] The technical scheme is as follows: an intelligent temperature-controlled heat-dissipating rotor motor, comprising a motor housing, an output shaft, a stator, a rotor bracket, a permanent magnet and a fan; the motor housing is rotatably connected to the output shaft; the stator is fixedly connected to the motor housing; the stator is composed of a fixed ring and a winding core with teeth protruding inward, and a gap is left between the winding cores to separate adjacent windings; the output shaft is fixedly connected to the rotor bracket; a plurality of permanent magnets are arranged on the rotor bracket; the gap between the permanent magnet and the stator is an air gap; the output shaft is fixedly connected to a fan for heat dissipation; the motor housing is provided with an air inlet; the motor housing is provided with an exhaust port; and a heat-insulating Plate and sealing plate; an annular cavity is opened in the fixed ring of the stator; a plurality of heat insulation plates are arranged in the annular cavity; the annular cavity is divided into a plurality of separate chambers by the heat insulation plates, the chamber located near the winding core is the high-temperature chamber, and the chamber located at the corresponding position between adjacent windings is the low-temperature chamber; the high-temperature chamber and the low-temperature chamber are arranged at intervals; a plurality of connecting ports are opened on each heat insulation plate; a plurality of sealing plates are fixedly connected to each heat insulation plate; one end of the sealing plate is fixed to the heat insulation plate, and the other end is movable; each sealing plate cooperates with a connecting port to seal the connecting port; the corresponding sealing plates on all the heat insulation plates are arranged on the same side of the heat insulation plate.

[0006] Optionally, the communication port is conical, with a smaller opening on a side facing the sealing sheet and a larger opening on a side away from the sealing sheet.

[0007] Optionally, dustproof nets are provided at both the air inlet and the exhaust port.

[0008] Optionally, it also includes a heat pipe, a heat sink and a shaft cover; each low-temperature chamber is provided with a heat pipe for cooling the heat transfer fluid; a heat sink is fixedly connected to the right side of each heat pipe; the motor housing is fixedly connected to the shaft cover; the shaft cover is fixedly connected to all the heat pipes; a number of heat dissipation grooves are opened on the shaft cover; each heat dissipation groove corresponds to a heat sink.

[0009] Optionally, the heat dissipation slot is conical, with a larger opening on a side facing the heat sink and a smaller opening on a side facing the fan.

[0010] Optionally, a plurality of heat dissipation fins are symmetrically arranged on the heat sink.

[0011] Optionally, the heat dissipation fins on the heat sink are wedge-shaped, and the tip of the wedge faces the direction of the heat dissipation slot.

[0012] Optionally, a plurality of heat dissipation strips penetrate the rotor support.

[0013] Optionally, it also includes an air supply pipe; a plurality of air supply pipes are fixedly connected to the motor housing; the shaft cover is fixedly connected to the corresponding air supply pipe; each air supply pipe is fixedly connected to a heat conduction pipe; and a plurality of air holes are opened at the lower part of the air supply pipe.

[0014] Optionally, the air holes on the air supply pipe face the heat sink, and each air hole corresponds to a heat sink fin.

[0015] The beneficial effects of the present invention are as follows: 1. An annular cavity is opened in the fixed circular ring of the stator, and a plurality of heat insulation plates divide the annular cavity into individual chambers. The sealing of the temperature-controlled phase change material sealing sheet is used to form a temperature gradient in adjacent chambers. The deformation of the temperature-controlled phase change material sealing sheet and the flow of the heat transfer fluid in the high-temperature chamber and the low-temperature chamber realize preliminary heat exchange, preliminary cooling of the stator, and temporary uniformity of the temperature on the side of the stator away from the winding core. Then, the stator is in direct contact with the motor housing, and the heat dissipation structure on the motor housing is fully utilized to dissipate heat to the outside air, thereby realizing efficient heat dissipation of the heat transfer fluid.

[0016] 2. By arranging a heat pipe in the low-temperature cavity and using the rotation of the fan to continuously dissipate heat from the heat pipe, the heat pipe also continuously cools the heat transfer fluid in the low-temperature cavity, so that a temperature gradient is maintained between the high-temperature cavity and the low-temperature cavity, and the heat transfer fluid flows in a directional manner between the high-temperature cavity and the low-temperature cavity, thereby achieving the rotor motor being able to adapt to different load output powers and still maintain efficient heat dissipation for the stator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the intelligent temperature-control and heat-dissipating rotor motor of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the motor housing of the present invention;

[0019] Figure 3 is a cross-sectional view of a stator of the present invention;

[0020] Figure 4 A schematic diagram of the relative positions of the high temperature chamber and the low temperature chamber of the present invention;

[0021] Figure 5 It is a schematic diagram of the cooperation between the communication port and the sealing sheet of the present invention;

[0022] Figure 6 A schematic diagram of the relative positions of the heat sink and the heat sink of the present invention;

[0023] Figure 7 It is a schematic diagram of the relative positions of the heat sink and the air supply pipe of the present invention.

[0024] Markings in the accompanying drawings: 1-motor housing, 2-output shaft, 3-stator, 4-rotor bracket, 5-permanent magnet, 6-fan, 7-heat insulation board, 8-sealing plate, 1001-air inlet, 1002-exhaust port, 3001-winding core, 3002-high temperature cavity, 3003-low temperature cavity, 7001-connecting port, 101-heat pipe, 102-heat sink, 103-shaft cover, 10301-heat sink, 201-air supply pipe, 20101-air hole. DETAILED DESCRIPTION

[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0026] Embodiment 1

[0027] An intelligent temperature control and heat dissipation rotor motor, according to Figure 1-Figure 5As shown, it includes a motor housing 1, an output shaft 2, a stator 3, a rotor bracket 4, a permanent magnet 5 and a fan 6; the motor housing 1 is rotatably connected to the output shaft 2; the stator 3 is fixedly connected inside the motor housing 1; the stator 3 is composed of a fixed ring and a winding core 3001 protruding inwardly in a toothed shape, and a gap is left between the winding cores 3001; the output shaft 2 is fixedly connected to the rotor bracket 4; a plurality of permanent magnets 5 are arranged on the rotor bracket 4; the gap between the permanent magnet 5 and the stator 3 is an air gap; the output shaft 2 is fixedly connected to the fan 6; the fan 6 is located on the right side of the rotor bracket 4; an air inlet 1001 is opened on the left side of the motor housing 1; the air inlet 1001 is located on the left side of the stator 3; an exhaust port 1002 is opened on the right side of the motor housing 1; the exhaust port 1002 is located on the right side of the fan 6;

[0028] It also includes a heat insulation plate 7 and a sealing plate 8; an annular cavity is opened in the fixed ring of the stator 3; a plurality of heat insulation plates 7 are arranged in the annular cavity; the annular cavity is divided into a plurality of separate chambers by the heat insulation plate 7, the chamber located near the winding core 3001 is the high-temperature chamber 3002, and the chamber located at the corresponding position between adjacent windings is the low-temperature chamber 3003; the high-temperature chamber 3002 and the low-temperature chamber 3003 are arranged at intervals; a plurality of connecting ports 7001 are opened on each heat insulation plate 7; a plurality of sealing plates 8 are fixedly connected to each heat insulation plate 7, and the sealing plates 8 are made of nickel-titanium-palladium alloy; one end of the sealing plate 8 is fixed to the heat insulation plate 7, and the other end is movable; each sealing plate 8 cooperates with a connecting port 7001; the corresponding sealing plates 8 on all the heat insulation plates 7 are arranged on the same side of the heat insulation plate 7.

[0029] The connecting port 7001 is conical, with a smaller opening on the side facing the sealing sheet 8 and a larger opening on the side away from the sealing sheet 8, so as to prevent the thermal transfer liquid from forming a vortex when passing through the conical connecting port 7001, reduce the energy loss of the thermal transfer liquid, and apply more concentrated pressure to the sealing sheet 8, so as to facilitate the lifting of the movable end of the sealing sheet 8.

[0030] Dust-proof nets are provided at both the air inlet 1001 and the air outlet 1002 .

[0031] The working steps of the above embodiment are:

[0032] When the rotor motor is operated as an electric motor, the rotor motor is connected to a variable frequency power supply, and then the output shaft 2 is fixed to the load. By controlling the direction of the current flowing through the stator 3 winding, the air gap magnetic field generated by the stator 3 winding is controlled, and then interacts with the excitation magnetic field established by the permanent magnet 5, thereby driving the rotor bracket 4 and the permanent magnet 5 to rotate, and then driving the load to operate through the output shaft 2. During the working process of the rotor, since the current passes through the stator 3 winding, the Joule heat generated by the current loss and the iron loss generated under the action of the alternating magnetic field cause the temperature of the rotor motor to rise. In the prior art, natural cooling and forced air cooling with a fan 6 are generally used to dissipate the heat of the rotor motor to control the heat of the rotor motor and improve the performance and reliability of the motor. The output shaft 2 drives the fan 6 to extract the heat from the rotor motor during rotation, driving the air in the motor housing 1 to flow to the right. At this time, an air inlet 1001 is opened on the left side of the motor housing 1, and then the outside air enters the motor housing 1 after being filtered by the dustproof net, and then the air flows to the right through the air gap between the stator 3 and the rotor bracket 4. The air exchanges heat with the stator 3 and the rotor bracket 4, and the heat of the stator 3 and the rotor bracket 4 is taken out to the right, and then the hot air is discharged from the exhaust port 1002 with the dustproof net, thereby achieving preliminary air cooling of the stator 3 and the rotor bracket 4. Considering that there is a temperature difference between the toothed winding core 3001 with windings wound on the stator 3 and the position between the windings, the fixed circle of the stator 3 is An annular cavity is provided in the ring, and a plurality of heat insulation plates 7 divide the annular cavity into individual chambers, and heat transfer liquid is pre-injected into each individual chamber, and a chamber corresponding to the winding core 3001 with a winding is provided. Due to iron loss, the chamber has a local high temperature, which is a high-temperature chamber 3002, and the chamber corresponding to the position between adjacent windings has no heat dissipation caused by iron loss, which is a low-temperature chamber 3003. Therefore, during the operation of the rotor motor, the temperature of the winding core 3001 rises, and the high temperature is absorbed by the heat transfer liquid in the high-temperature chamber 3002, and the volume of the heat transfer liquid begins to expand. By adjusting the composition, the nickel-titanium-palladium alloy material has a higher phase transition temperature. Therefore, after the temperature of the heat transfer liquid reaches the phase transition temperature of the sealing sheet 8, the sealing sheet 8 made of the nickel-titanium-palladium alloy begins to expand. The sealing sheet 8 is deformed, one end of the sealing sheet 8 is fixed, and the other end is movable, so the movable end of the sealing sheet 8 is deformed and warped, and the movable end of the sealing sheet 8 is separated from the heat insulation board 7, so that the high-temperature chamber 3002 is connected with the low-temperature chamber 3003. Since the sealing sheets 8 on the heat insulation board 7 are all arranged on the same side, and since when the heat-conducting liquid in the high-temperature chamber 3002 is initially heated and expanded, the sealing sheet 8 is close to the connecting port 7001 on one side, and the heat-expanded heat-conducting liquid exerts pressure on the sealing sheet 8 on the other side, and as the temperature of the heat-conducting liquid increases, the sealing sheet 8 is deformed and warped, and the heat-conducting liquid flows from the high-temperature chamber 3002 into the low-temperature chamber 3003 along the temperature gradient. As the heat-conducting liquid flowing into the low-temperature chamber 3003 increases, the heat-conducting liquid in the low-temperature chamber 3003 begins to exert pressure on the adjacent sealing sheet 8.And the temperature of the corresponding sealing sheet 8 also rises. When the temperature reaches the phase transition temperature of the sealing sheet 8, the sealing sheet 8 deforms and warps, such as, Figure 5 As shown in the lower middle figure, the heat transfer fluid in the low temperature cavity 3003 is replenished into the next high temperature cavity 3002, so that the heat transfer fluid flows from the low temperature cavity 3003 to the next high temperature cavity 3002 against the temperature gradient under the liquid pressure, so that the heat transfer fluid flows in the annular cavity of the stator 3, which is a clockwise flow when viewed from left to right. The high temperature cavity 3002 and the heat transfer fluid in the low temperature cavity 3003 transfer heat, so that the temperature of the heat transfer fluid in the high temperature cavity 3002 is reduced. The heat transfer fluid flows in the high temperature cavity 3002 and the low temperature cavity 3003, so that the temperature of the stator 3 away from the winding core 3001 is temporarily uniform, and then the stator 3 is in direct contact with the motor housing 1, and the heat dissipation structure on the motor housing 1 is fully utilized to dissipate heat to the outside air, so as to achieve rapid heat dissipation of the heat transfer fluid, and then the temperature of the sealing plate 8 drops, the sealing plate 8 recovers, and the sealing plate 8 re-blocks the corresponding connecting port 7001, so that the high temperature cavity 3002 and the low temperature cavity 3003 are separated from each other. Figure 5 As shown in the upper middle figure, the high temperature cavity 3002 and the low temperature cavity 3003 absorb heat synchronously again, so that a temperature gradient is formed between the high temperature cavity 3002 and the low temperature cavity 3003, and then the above process is repeated. The flow of the heat transfer fluid in the high temperature cavity 3002 and the low temperature cavity 3003 realizes preliminary heat exchange and preliminary cooling of the stator 3. The deformation of the phase change material sealing sheet 8 is controlled by temperature, which is sensitive to temperature changes and has a high degree of intelligence, thereby realizing efficient heat dissipation of the rotor motor. Compared with the prior art, no heat transfer fluid is arranged in the stator 3. The stator 3 exchanges heat by direct contact with the motor housing 1. The heat distribution at different positions of the stator 3 is uneven, and the heat dissipation structure on the motor housing 1 cannot be fully utilized to uniformly dissipate heat to the outside, the heat dissipation efficiency is low, and the load output cannot be adapted to changes in time, so that the generated heat cannot be discharged immediately, affecting the service life of the rotor motor.

[0033] Second embodiment

[0034] On the basis of the first embodiment, according to Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, it also includes a heat pipe 101, a heat sink 102 and a shaft cover 103; each low-temperature chamber 3003 is provided with a heat pipe 101; each heat pipe 101 is fixedly connected to a heat sink 102 on the right side; a shaft cover 103 is fixedly connected to the right side of the motor housing 1; the shaft cover 103 is fixedly connected to all the heat pipes 101; the heat sink 102 is located between the shaft cover 103 and the stator 3; a plurality of heat dissipation grooves 10301 are opened on the shaft cover 103; each heat dissipation groove 10301 corresponds to a heat sink 102.

[0035] The heat dissipation slot 10301 is conical, with a larger opening on the side facing the heat sink 102 and a smaller opening on the side facing the fan 6. The trapezoidal heat dissipation slot 10301 increases the air inlet, reduces the stagnation time of hot air between the heat sink 102 and the shaft cover 103, and facilitates the discharge of hot air.

[0036] A plurality of heat dissipation fins are symmetrically arranged on the heat sink 102 .

[0037] The heat dissipation fins on the heat sink 102 are wedge-shaped, with the tip of the wedge facing the direction of the heat dissipation slot 10301 . The wedge-shaped heat sink 102 increases the contact area with the hot air and also guides the hot air into the heat dissipation slot 10301 .

[0038] The rotor support 4 is penetrated by a plurality of heat dissipation strips arranged in a circular array.

[0039] It also includes an air supply pipe 201; the motor housing 1 is fixedly connected to a plurality of annular array-type air supply pipes 201; the shaft cover 103 is fixedly connected to the corresponding air supply pipe 201; each air supply pipe 201 is fixedly connected to a heat conduction pipe 101; and a plurality of air holes 20101 are opened at the lower part of the air supply pipe 201.

[0040] The air holes 20101 on the air supply pipe 201 face the heat sink 102 , and each air hole 20101 corresponds to a heat sink fin on the heat sink 102 .

[0041] The working steps of the above embodiment are:

[0042] On the basis of the first embodiment, the annular cavity opened in the stator 3 is divided into several separate chambers by the insulation plate 7 and the sealing plate 8, and due to the different positions of the chambers, the temperature of the heat transfer fluid is different, and a temperature difference occurs between the high-temperature cavity 3002 and the low-temperature cavity 3003. During the mutual flow of the heat transfer fluids in the high-temperature cavity 3002 and the low-temperature cavity 3003, the heat transfer fluids in the high-temperature cavity 3002 and the low-temperature cavity 3003 are mixed with each other so that the temperature difference is reduced. Then, the sealing plate 8 is restored and the connecting port 7001 is blocked again. As the output power of the rotor motor increases, during the mixing process of the heat transfer fluids in the high-temperature cavity 3002 and the low-temperature cavity 3003, the temperature of the heat transfer fluid reaches the deformation temperature of the sealing plate 8 again, and then the sealing plate 8 cannot be restored, so that the heat transfer fluids in the high-temperature cavity 3002 and the low-temperature cavity 3003 are always in a mixed state, without the influence of the temperature gradient, and the high-temperature cavity 3002 and the low-temperature cavity 3003 no longer have a directional flow, which affects the heat dissipation effect of the stator 3.

[0043] At this time, a heat pipe 101 is arranged in the low temperature chamber 3003. When the output shaft 2 drives the fan 6 to rotate, the fan 6 forces the air inside the rotor motor to be blown outward through the exhaust port 1002 to achieve heat dissipation inside the rotor motor. Then, the outside air enters the rotor motor through the air inlet 1001 to replenish the air inside the rotor motor. Then, the air passes through the air gap and reaches the position of the shaft cover 103. Then, the air passes through the heat dissipation groove 10301 with a conical opening. Before passing through the heat dissipation groove 10301, the air is first concentrated and then contacts with the heat sink 102 to exchange heat with the heat sink 102, so as to fully cool the heat sink 102. The heat sink 102 is connected to the heat pipe 101. Due to the temperature of the air passing through the air gap, The temperature of the heat-conducting liquid in the stator 3 must be lower than that of the heat-conducting liquid in the stator 3, thereby achieving cooling of the heat-conducting pipe 101, thereby achieving forced cooling of the heat-conducting liquid in the low-temperature cavity 3003, the temperature difference between the high-temperature cavity 3002 and the low-temperature cavity 3003 is increased, the flow rate of the heat-conducting liquid interacting between the high-temperature cavity 3002 and the low-temperature cavity 3003 is increased, and when the heat-conducting liquid in the high-temperature cavity 3002 and the low-temperature cavity 3003 interact, the heat-conducting pipe 101 continues to cool the heat-conducting liquid in the low-temperature cavity 3003, so that the temperature gradient is maintained between the high-temperature cavity 3002 and the low-temperature cavity 3003, and the heat-conducting liquid is directed to flow between the high-temperature cavity 3002 and the low-temperature cavity 3003, thereby achieving the rotor motor that can adapt to different load output powers and still maintain efficient heat dissipation for the stator 3.

[0044] The heat sink 102 is also provided with a plurality of wedge-shaped heat sink fins, which increase the contact area of ​​the air when passing through the heat sink 102, so that the air can fully cool the heat sink 102, and the rotor bracket 4 is also provided with a plurality of heat sink strips, so that the rotor bracket 4 can also drive the heat sink strips thereon to rotate during the rotation process. Figure 3 and Figure 6As shown, the heat dissipation strip can not only dissipate heat for the rotor bracket 4, but also stir the air in the shaft cover 103 when the heat dissipation strip rotates, so that the air flowing out of the air gap flows to the surroundings, and then the air fully contacts the heat sink 102, and then passes through the heat dissipation groove 10301 and enters the position of the fan 6, thereby further strengthening the cooling of the heat sink 102. Considering that the air passing through the air gap is limited during the operation of the rotor motor, a corresponding air supply pipe 201 can be set, and the air supply pipe 201 is directly connected to the outside air, and the air hole 201 of the air supply pipe 201 01 corresponds to the heat dissipation fins of the heat sink 102. After the outside air enters, it will directly contact the heat dissipation fins of the heat sink 102 to cool down the heat sink 102. The number and diameter of the air inlet holes of the air supply pipe 201 are smaller than the number and diameter of the air inlet 1001. Therefore, the air from the outside that enters the shaft cover 103 through the air supply pipe 201 only serves to enhance the heat dissipation of the heat sink 102, thereby further increasing the heat dissipation effect of the stator 3, but will not cause a significant impact on the heat dissipation of the rotor bracket 4, thereby realizing intelligent temperature control and heat dissipation of the rotor motor.

[0045] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An intelligent temperature-controlled heat-dissipating rotor motor, comprising a motor housing (1), an output shaft (2), a stator (3), a rotor support (4), a permanent magnet (5) and a fan (6); the motor housing (1) is rotatably connected to the output shaft (2); the stator (3) is fixedly connected inside the motor housing (1); the stator (3) is composed of a fixed ring and a winding core (3001) protruding inwardly in a toothed shape, and a gap is left between the winding cores (3001) for separating adjacent windings; the output shaft (2) is fixedly connected to the rotor support (4); a plurality of permanent magnets (5) are arranged on the rotor support (4); the gap between the permanent magnet (5) and the stator (3) is an air gap; the output shaft (2) is fixedly connected to a fan (6) for heat dissipation; the motor housing (1) is provided with an air inlet (1001); the motor housing (1) is provided with an exhaust port (1002); characterized in that, The invention also comprises a heat insulating plate (7) and a sealing plate (8); an annular cavity is formed in the fixed annular ring of the stator (3); a plurality of heat insulating plates (7) are arranged in the annular cavity; the annular cavity is divided into a plurality of separate chambers by the heat insulating plates (7), and each separate chamber is pre-filled with a heat transfer liquid; the chamber located near the winding core (3001) is a high-temperature chamber (3002), and the chamber located at a corresponding position between adjacent windings is a low-temperature chamber (3003); the high-temperature chamber (3002) and the low-temperature chamber (3003) are connected to each other. The cavities (3003) are arranged at intervals; each heat insulation board (7) is provided with a plurality of communication ports (7001); each heat insulation board (7) is fixedly connected with a plurality of sealing sheets (8); one end of the sealing sheet (8) is fixed to the heat insulation board (7) and the other end is movable; each sealing sheet (8) cooperates with a communication port (7001) to seal the communication port (7001); the corresponding sealing sheets (8) on all the heat insulation boards (7) are arranged on the same side of the heat insulation board (7); When the temperature of the winding core (3001) rises, the high temperature is absorbed by the heat transfer fluid in the high temperature chamber (3002), the volume of the heat transfer fluid begins to expand, and by adjusting the composition, the nickel-titanium-palladium alloy material has a higher phase transition temperature. Therefore, after the temperature of the heat transfer fluid reaches the phase transition temperature of the sealing sheet (8), the sealing sheet (8) made of the nickel-titanium-palladium alloy begins to deform. One end of the sealing sheet (8) is fixed and the other end is movable. Therefore, the movable end of the sealing sheet (8) is deformed and warped, and the movable end of the sealing sheet (8) is separated from the insulation board (7), so that the high temperature chamber (3002) is connected with the low temperature chamber (3003).

2. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 1, characterized in that: The communication port (7001) is conical, with a smaller opening on the side facing the sealing plate (8) and a larger opening on the side away from the sealing plate (8).

3. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 1, characterized in that: Dust-proof nets are provided at the air inlet (1001) and the air outlet (1002).

4. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 1, characterized in that: It also includes a heat conducting pipe (101), a heat sink (102) and a rotating shaft cover (103); each low-temperature chamber (3003) is provided with a heat conducting pipe (101) for cooling the heat conducting liquid; each heat conducting pipe (101) is fixedly connected to a heat sink (102) on the right side; the motor housing (1) is fixedly connected to the rotating shaft cover (103); the rotating shaft cover (103) is fixedly connected to all the heat conducting pipes (101); and a plurality of heat dissipation grooves (10301) are provided on the rotating shaft cover (103); Each heat dissipation slot (10301) corresponds to a heat sink (102).

5. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 4, characterized in that: The heat dissipation groove (10301) is conical, with a larger opening on the side facing the heat sink (102) and a smaller opening on the side facing the fan (6).

6. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 4, characterized in that: A plurality of heat dissipation fins are symmetrically arranged on the heat dissipation sheet (102).

7. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 6, characterized in that: The heat dissipation fins on the heat sink (102) are wedge-shaped, with the tip of the wedge facing the direction of the heat dissipation slot (10301).

8. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 7, characterized in that: A plurality of heat dissipation strips penetrate the rotor support (4).

9. An intelligent temperature-controlled heat-dissipating rotor motor according to any one of claims 1 to 8, characterized in that: It also includes an air supply pipe (201); a plurality of air supply pipes (201) are fixedly connected to the motor housing (1); the rotating shaft cover (103) is fixedly connected to the corresponding air supply pipe (201); each air supply pipe (201) is fixedly connected to a heat conducting pipe (101); and a plurality of air holes (20101) are opened at the lower part of the air supply pipe (201).

10. The intelligent temperature-controlled heat-dissipating rotor motor according to claim 9, characterized in that: The air holes (20101) on the air supply pipe (201) face the heat sink (102), and each air hole (20101) corresponds to a heat sink fin on the heat sink (102).

Citation Information

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