High-stability axial magnetic flux motor

Abstract

The invention provides a high-stability axial magnetic flux motor, which comprises a rear end cover, a front end cover, two stator cores, a rotor disc, an output shaft and a support frame, and is characterized in that the output shaft is coaxially and rotatably connected to the interior of the rear end cover and the interior of the front end cover through two bearings; the two stator iron cores are symmetrically installed in the front end cover and the rear end cover. The working temperature of the motor is monitored, when the internal temperature of the axial flux motor reaches the rated temperature, the motor control system controls the electromagnet to be powered off, at the moment, the rotating seat drives the flow guide fan to rotate, and a negative pressure area is formed outside the through hole in the rotating process of the flow guide fan, so that external air can flow into the air inlet channel; and air inside and outside the motor is exchanged, so that heat dissipation of the axial magnetic flux motor is realized, heat accumulation between the stator and the rotor is avoided, and the overall operation stability of the motor is improved.

Description

Technical Field

[0001] The present invention relates to an axial flux motor, specifically an axial flux motor with high stability, and belongs to the technical field of axial flux motors. Background Art

[0002] An axial flux motor, also known as a "disk motor", is a unique electric motor. Its main feature is that the direction of its magnetic flux is axial, rather than the traditional radial direction. The magnetic flux direction of the axial flux motor is along the axis of the motor, that is, consistent with the axis direction of the rotating shaft. The stator and rotor cores are of a disk structure, and the current-carrying conductors are placed radially. This structure makes the motor relatively compact in the axial dimension and has a smaller radial dimension.

[0003] The axial flux motor can have various structural forms, such as a single stator and a single rotor, a double stator and a single rotor. Among them, the double stator single rotor structure has two stators and one rotor, and the stators are respectively distributed on both sides of the rotor. This structure makes the motor have better symmetry during operation. Since the axial pulling forces between the two stators and the rotor are in opposite directions and can cancel each other out, this structure helps to reduce the unilateral magnetic pulling force and the bearing load, thereby reducing the generation of vibration and noise. The balance of this magnetic pulling force helps to improve the stability of the motor. The double stator single rotor structure has been widely used in wind power generation systems, and its good symmetry and magnetic pulling force balance enable the motor to operate more stably.

[0004] In the axial flux motor, the double stators are respectively located on both sides of the rotor, forming a clamping effect. This layout not only enhances the structural strength of the motor but also optimizes the magnetic field distribution to a certain extent, enabling the motor to output power more smoothly and efficiently during operation. However, this design also brings some challenges, and the most significant one is the heat dissipation problem; Since the rotor is tightly clamped between the two stators and the gap between them is relatively small, this results in the difficulty of effectively dissipating heat inside the motor. When the motor rotates at a high speed or works for a long time, the heat generated by the electromagnetic interaction between the stator and the rotor will accumulate rapidly. If it cannot be discharged in time, a series of problems will occur: First of all, the high-temperature environment will accelerate the aging of the internal materials of the motor and shorten the service life of the motor; Secondly, the excessive temperature will also affect the stability of the magnetic field inside the motor, resulting in a decline in the motor performance and even causing failures, thereby affecting the overall operation stability of the axial flux motor; Therefore, an axial flux motor with high stability is proposed. Summary of the Invention

[0005] In view of this, the present invention provides an axial flux motor with high stability to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the present invention is implemented as follows: An axial flux motor with high stability includes a rear end cover, a front end cover, two stator cores, a rotor disc, an output shaft and a support frame. The output shaft is coaxially rotatably connected to the inside of the rear end cover and the inside of the front end cover through two bearings. The two stator cores are symmetrically installed inside the front end cover and the inside of the rear end cover. The rotor disc is fixedly connected to the outer side wall of the output shaft through the support frame; A heat dissipation component is installed on the outer side wall of the output shaft. The heat dissipation component includes two drive plates, a guide fan, two electromagnets, an adsorption disc, a guide rod, two rotating seats, a friction disc and a spring; The guide fan is fixedly connected to the outer side wall of the rotating seat. One end of the guide rod is fixedly connected to the adsorption disc, and the other end of the guide rod is fixedly connected to the friction disc. The spring is sleeved on the outer side wall of the guide rod. The adsorption disc is fixedly adsorbed to the electromagnet by magnetic force. The position of the friction disc corresponds to the position of the drive plate. The two drive plates are symmetrically fixedly connected to the outer side wall of the output shaft.

[0007] Further preferably, the two electromagnets are symmetrically fixedly connected to the outer side walls of the rear end cover and the front end cover. The two rotating seats are symmetrically rotatably connected to the outer side wall of the output shaft. The guide rods are symmetrically slidably connected to the inside of the rotating seats.

[0008] Further preferably, the adsorption disc and the friction disc are respectively located on both sides of the rotating seat. One end of the spring abuts against the rotating seat, and the other end of the spring abuts against the friction disc.

[0009] Further preferably, the heat dissipation component further includes an air intake channel, exhaust holes and through holes; A boss is provided in the middle of the output shaft. The air intake channel is opened at the rear end of the output shaft and extends inward to the boss. The exhaust holes are symmetrically opened on the front surface and the rear surface of the boss on the output shaft. The exhaust holes communicate with the air intake channel. The through holes are symmetrically opened on the front surface of the front end cover and the rear surface of the rear end cover. The position of the guide fan corresponds to the position of the through holes.

[0010] Further preferably, magnetic steel is symmetrically fixedly connected to the front surface and the rear surface of the rotor disc. A stator winding is wound inside the stator core. The two stator cores are symmetrically located on both sides of the rotor disc.

[0011] Further preferably, protective covers are fixedly connected to the rear surface of the rear end cover and the front surface of the front end cover. A protective plate is fixedly connected to the inner side wall of the protective cover. The protective plate is rotatably connected to the outer side wall of the driving plate, and ventilation grooves are uniformly formed inside the protective plate.

[0012] Further preferably, an intake assembly is installed inside the intake passage. The intake assembly includes an intake pipe, intake holes, a connecting pipe, four limiting blocks, and a filter cartridge. One end of the connecting pipe is fixedly connected and communicated with one end of the intake pipe. The intake holes are uniformly formed in the outer side wall of the intake pipe. The four limiting blocks are symmetrically and fixedly connected to the outer side wall of the connecting pipe. The filter cartridge is installed inside the intake pipe.

[0013] Further preferably, the intake assembly further includes threaded holes, connection holes, and four limiting grooves. The four limiting grooves are symmetrically formed in the inner side wall of the intake passage. The threaded hole is formed in the outer side wall of one of the limiting blocks. The connection hole is formed in the outer side wall of the output shaft and communicated with the limiting groove. The limiting block is slidably connected to the inner side wall of the limiting groove.

[0014] Further preferably, the position of the connection hole corresponds to the position of the threaded hole, and the outer side wall of the connecting pipe is slidably connected to the inner side wall of the intake passage.

[0015] Further preferably, the front end cover is fixedly connected to the rear end cover by bolts.

[0016] Due to the adoption of the above technical solutions in the embodiments of the present invention, the following advantages are achieved: 1. The present invention monitors the operating temperature of the motor. When the internal temperature of the axial flux motor reaches the rated temperature, the motor control system controls the electromagnet to power off. At this time, the friction disk is pushed by the spring, and the friction disk contacts the driving plate. The friction disk drives the rotating seat to rotate through the guide rod, and the rotating seat drives the guide fan to rotate. During the rotation of the guide fan, a negative pressure area is formed outside the through hole, so that external air can flow into the intake passage, and then flow into the interior of the motor through the exhaust holes. Since the exhaust holes are symmetrically arranged front and back, air can flow out from the front and back directions. The air flow flows through the gap between the rotor and the stator, and then is discharged from the through hole. The internal and external air of the motor is replaced, realizing the heat dissipation of the axial flux motor, avoiding the accumulation of heat between the stator and the rotor, ensuring the service life of the motor, and improving the overall operating stability of the motor.

[0017] Second, the present invention can maintain the cleanliness of the internal environment of the motor through the intake assembly, and also significantly reduces the risk of motor failure caused by dust accumulation, ensuring that the motor can maintain an efficient and stable operating state for a long time. When it is necessary to maintain or replace the filter cartridge inside the intake pipe, the screws fixing the position of the intake pipe can be removed to release the fixing constraint on the intake pipe, and then the intake pipe can be taken off. At this time, the filter cartridge can be easily accessed and disassembled and replaced as needed. Through this design, not only the structural stability is ensured, but also the maintenance process is simplified and the maintenance efficiency is improved.

[0018] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a structural diagram of an axial flux motor with high stability according to the present invention; Figure 2 It is a schematic diagram of the connection between the intake pipe and the output shaft according to the present invention; Figure 3 It is a schematic exploded view of the structure according to the present invention; Figure 4 It is a structural diagram of the support frame according to the present invention; Figure 5 It is a structural diagram of the output shaft according to the present invention; Figure 6 It is a schematic diagram of the installation position of the heat dissipation assembly according to the present invention; Figure 7 It is a schematic exploded view of the structure of the heat dissipation assembly according to the present invention; Figure 8 It is a schematic diagram of the connection between the adsorption disc and the friction disc according to the present invention; Figure 9 It is a structural diagram of the intake assembly according to the present invention; Figure 10 It is a schematic exploded view of the structure of the intake assembly according to the present invention; Figure 11 It is a schematic diagram of the air flow direction during the working process of the present invention; Figure 12This is the timing control diagram of the electromagnet and the spring of the present invention.

[0021] Reference numerals: 101, heat dissipation component; 11, rear end cover; 12, front end cover; 13, protective cover; 14, protective plate; 15, ventilation groove; 16, output shaft; 17, drive plate; 18, stator core; 19, rotor disc; 20, permanent magnet; 22, stator winding; 23, support frame; 24, intake passage; 25, exhaust hole; 26, through hole; 27, guide fan; 28, electromagnet; 29, adsorption disc; 30, guide rod; 31, rotating seat; 32, friction disc; 33, spring; 401, intake component; 41, intake pipe; 42, intake hole; 43, connecting pipe; 44, limiting block; 45, threaded hole; 46, filter cartridge; 47, connecting hole; 48, limiting groove. Detailed implementation manners

[0022] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature and not restrictive.

[0023] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0024] In the prior art, since the rotor is tightly sandwiched between two stators and the gap between them is relatively small, it causes the heat in the motor to be difficult to effectively dissipate. When the motor runs at high speed or works for a long time, the heat generated by the electromagnetic action between the stator and the rotor will rapidly accumulate. If it cannot be discharged in time, a series of problems will occur: First, the high-temperature environment will accelerate the aging of the internal materials of the motor and shorten the service life of the motor. Second, the excessive temperature will also affect the stability of the internal magnetic field of the motor, resulting in a decline in the performance of the motor and even causing failures, thereby affecting the overall operating stability of the axial flux motor. Such as Figures 1 - 11As shown in the figure, an embodiment of the present invention provides an axial flux motor with high stability, which includes a rear end cover 11, a front end cover 12, two stator cores 18, a rotor disc 19, an output shaft 16 and a support frame 23. The output shaft 16 is coaxially rotatably connected to the inside of the rear end cover 11 and the inside of the front end cover 12 through two bearings. The two stator cores 18 are symmetrically installed inside the front end cover 12 and the inside of the rear end cover 11. By adopting a double-stator single-rotor structure, the motor can have better symmetry during operation. Since the axial pulling force directions between the two stators and the single rotor are opposite and can cancel each other out, this structure helps to reduce the unilateral magnetic pull force, reduce the bearing load, thereby reducing the generation of vibration and noise. Moreover, the balance of this magnetic pull force helps to improve the stability of the motor, enabling the axial flux motor to operate more stably; The rotor disc 19 is fixedly connected to the outer side wall of the output shaft 16 through the support frame 23. The support frame 23, the output shaft 16 and the magnetic steel 20 can form the rotor of the axial flux motor. By setting the support frame 23, the rotor can be in a hollow structure, thereby reducing the weight of the rotor and reducing the loss generated during the operation of the motor; The front end cover 12 is fixedly connected to the rear end cover 11 through bolts. Magnetic steels 20 are symmetrically fixedly connected to the front surface and the rear surface of the rotor disc 19. A stator winding 22 is wound inside the stator core 18. The two stator cores 18 are symmetrically located on both sides of the rotor disc 19; When the axial flux motor is working, the stator winding 22 is energized. At this time, magnetic fields are generated on both sides of the motor rotor disc 19 and act on the magnetic steels 20. The magnetic fields interact with the magnetic fields generated by the magnetic steels 20 to generate a torque, causing the rotor disc 19 of the axial flux motor to rotate. The rotor disc 19 drives the output shaft 16, and thus the output of power can be realized; A heat dissipation component 101 is installed on the outer side wall of the output shaft 16. The heat dissipation component 101 is used to dissipate heat from the axial flux motor. When the temperature inside the heat dissipation component 101 exceeds the rated value, the heat dissipation component 101 starts, and external air enters the inside of the motor, and then discharges the heat inside the motor, thereby avoiding the accumulation of heat between the stator and the rotor, ensuring the service life of the motor, and improving the overall operating stability of the motor; The heat dissipation component 101 includes two drive plates 17, a guide fan 27, two electromagnets 28, an adsorption disc 29, a guide rod 30, two rotating seats 31, a friction disc 32 and a spring 33; The flow guiding fan 27 is fixedly connected to the outer side wall of the rotating seat 31. As the core component of the heat dissipation assembly 101, the flow guiding fan 27 is used to form a negative pressure area outside the front end cover 12 and the rear end cover 11 of the motor, so as to enable the external air to enter the motor interior, thereby realizing the heat dissipation of the axial flux motor. The adsorption disc 29 is adsorbed and fixed to the electromagnet 28 by magnetic force. The position of the adsorption disc 29 can be limited by the electromagnet 28. When the axial flux motor is running, the temperature sensor inside the axial flux motor monitors the operating temperature of the motor. When the temperature reaches the rated value, the electromagnet 28 automatically cuts off the power supply; When the heat dissipation assembly 101 starts to work, the position of the friction disc 32 corresponds to the position of the driving plate 17. Two driving plates 17 are symmetrically and fixedly connected to the outer side wall of the output shaft 16. The flow guiding fan 27 is installed on the outer side wall of the rotating seat 31. Anti-slip coatings are provided on the opposite surfaces of the friction disc 32 and the driving plate 17. When the electromagnet 28 cuts off the power supply, the friction disc 32 contacts the driving plate 17, and the driving plate 17 drives the friction disc 32 to rotate. The friction disc 32 drives the rotating seat 31 under the cooperation of the guide rod 30.

[0025] In one embodiment, two electromagnets 28 are symmetrically and fixedly connected to the outer side walls of the rear end cover 11 and the front end cover 12. Two rotating seats 31 are symmetrically and rotatably connected to the outer side wall of the output shaft 16. The rotating seat 31 is rotatably connected to the output shaft 16 through a bearing. The guide rods 30 are symmetrically and slidably connected to the interior of the rotating seat 31. One end of the guide rod 30 is fixedly connected to the adsorption disc 29, and the other end of the guide rod 30 is fixedly connected to the friction disc 32. The position of the friction disc 32 can be limited and guided by the guide rod 30.

[0026] In one embodiment, a spring 33 is sleeved on the outer side wall of the guide rod 30. The adsorption disc 29 and the friction disc 32 are respectively located on both sides of the rotating seat 31. One end of the spring 33 abuts against the rotating seat 31, and the other end of the spring 33 abuts against the friction disc 32. When the electromagnet 28 cuts off the power supply, the friction disc 32 is pushed by the spring 33. The friction disc 32 contacts the driving plate 17. Since the output shaft 16 is fixedly connected to the driving plate 17, the output shaft 16 drives the friction disc 32 to rotate through the driving plate 17. The friction disc 32 drives the rotating seat 31 to rotate through the guide rod 30, and the rotating seat 31 drives the flow guiding fan 27 to rotate; In one embodiment, a temperature sensor is arranged inside the front end cover 12 for monitoring the working temperature of the axial flux motor. The signal end of the temperature sensor is connected to the external motor control system. When the internal temperature of the axial flux motor rises to the rated temperature, the temperature sensor sends a signal to the external motor control system, and the motor control system controls the electromagnet 28 to cut off the power supply. The specific control process is as follows: The internal temperature data of the axial flux motor is collected in real time by a temperature sensor. To reduce noise interference, a moving average filtering algorithm is used to smooth the collected temperature data; The processed temperature data is compared with the set rated temperature threshold. If the temperature is lower than the rated temperature, the normal power supply state of the electromagnet 28 is maintained. If the temperature reaches or exceeds the rated temperature, a control signal is triggered to prepare for controlling the electromagnet 28 to cut off the power; When the temperature reaches or exceeds the rated temperature, the motor control system sends a power-off signal to the electromagnet 28. After receiving the power-off signal, the electromagnet 28 immediately cuts off the power supply and stops working; After the electromagnet 28 cuts off the power, the internal temperature of the motor is continuously monitored by the temperature sensor to ensure that the temperature gradually decreases. When the temperature continuously decreases and stabilizes within the safe range, the electromagnet 28 is powered on again; According to the operating history data and environmental conditions of the motor, the rated temperature threshold is adaptively adjusted. According to the real-time operating data of the motor, including temperature, current, voltage, and environmental conditions such as room temperature and heat dissipation conditions, the preset safe temperature threshold is dynamically adjusted. This adjustment can ensure that the motor can maintain the best operating state under different working conditions, neither being damaged due to excessive temperature nor wasting energy due to too low temperature.

[0027] In one embodiment, the heat dissipation component 101 further includes an air intake channel 24, an exhaust hole 25, and a through hole 26; A boss is provided in the middle of the output shaft 16. The air intake channel 24 is opened at the rear end of the output shaft 16 and extends inward to the boss. The exhaust holes 25 are symmetrically opened on the front surface and the rear surface of the boss on the output shaft 16. Then, external air can flow into the interior of the output shaft 16 through the air intake channel 24, and then flow into the interior of the motor through the exhaust holes 25. Since the exhaust holes 25 are symmetrically arranged front and back, the air can flow out in two directions, and the air in the two directions respectively corresponds to two motor stators, thereby realizing the heat dissipation of the motor; In one embodiment, the present invention provides the motor temperature rise test data according to GB / T 22072-2008, test conditions: ambient temperature 25°C, load rate 85%, as shown in the following table: Heat dissipation mode Temperature rise (°C) after continuous operation for 2 h Thermal equilibrium time (min) Without heat dissipation components 78.2 45 The solution of the present invention 42.5 22 Table 1 The exhaust hole 25 is communicated with the air intake channel 24. The through holes 26 are symmetrically opened on the front surface of the front end cover 12 and the rear surface of the rear end cover 11. The position of the guide fan 27 corresponds to the position of the through holes 26. When the electromagnet 28 cuts off the power, the guide fan 27 rotates following the output shaft 16. During the rotation of the guide fan 27, a negative pressure area is formed outside the through holes 26, which can then promote the external air to flow into the air intake channel 24 and then flow into the interior of the motor through the exhaust holes 25.

[0028] In one embodiment, protective covers 13 are fixedly connected to the rear surface of the rear end cover 11 and the front surface of the front end cover 12. A protective plate 14 is fixedly connected to the inner side wall of the protective cover 13. The protective plate 14 is rotatably connected to the outer side wall of the driving plate 17. Ventilation grooves 15 are evenly formed inside the protective plate 14. The protective cover 13 can limit the position of the protective plate 14 to ensure its stability and prevent it from moving randomly, thereby effectively playing a protective role. The protective plate 14 is mainly used to protect the guide fan 27 to prevent it from being interfered or damaged by external factors during operation, ensuring that the guide fan 27 can operate continuously and stably. By providing the ventilation grooves 15 on the protective plate 14, while ensuring the protection effect, it can also fully guarantee the working effect of the guide fan 27, enabling it to smoothly conduct air circulation and heat dissipation, thereby improving the operating efficiency and stability of the entire system.

[0029] To solve the problems existing in the prior art, the embodiment of the present invention provides an axial flux motor with high stability and solves the problems through the above technical solutions: The working temperature of the motor is monitored by a temperature sensor inside the axial flux motor. When the internal temperature of the axial flux motor reaches the rated temperature, the temperature sensor sends a signal to the external motor control system, and the motor control system controls the electromagnet 28 to cut off the power. At this time, the friction disk 32 is pushed by the spring 33, and the friction disk 32 contacts the driving plate 17. Since the output shaft 16 is fixedly connected to the driving plate 17, the output shaft 16 drives the friction disk 32 to rotate through the driving plate 17. The friction disk 32 drives the rotating seat 31 to rotate through the guide rod 30, and the rotating seat 31 drives the guide fan 27 to rotate. During the rotation of the guide fan 27, a negative pressure area is formed outside the through hole 26, which can cause external air to flow into the intake passage 24, and then flow into the interior of the motor through the exhaust holes 25. Since the exhaust holes 25 are symmetrically arranged front and back, the air can flow out from the front and back two directions. The air flow flows through the gap between the rotor and the stator and then is discharged from the through hole 26. The internal and external air of the motor is replaced, realizing the heat dissipation of the axial flux motor, avoiding the accumulation of heat between the stator and the rotor, ensuring the service life of the motor, and improving the overall operating stability of the motor.

[0030] In one embodiment, an intake component 401 is installed inside the intake passage 24. The intake component 401 is mainly used to filter the air that is about to enter the interior of the motor, and can block and remove dust, impurities and other tiny particles in the air, thereby maximizing the avoidance of these harmful substances from invading the interior of the motor; In this way, the intake component 401 not only maintains the cleanliness of the internal environment of the motor, but also significantly reduces the risk of motor failure caused by dust accumulation, ensuring that the motor can maintain a highly efficient and stable operating state for a long time; The intake assembly 401 includes an intake pipe 41, intake holes 42, a connecting pipe 43, four limit blocks 44, and a filter cartridge 46; One end of the connecting pipe 43 is fixedly connected and communicated with one end of the intake pipe 41. The intake holes 42 are evenly formed in the outer sidewall of the intake pipe 41. The four limit blocks 44 are symmetrically and fixedly connected to the outer sidewall of the connecting pipe 43. The filter cartridge 46 is installed inside the intake pipe 41. The filter cartridge 46 is firmly installed inside the intake pipe 41 by a snap connection method, which is convenient for installation and future maintenance and replacement. When intake air, the air flows into the intake pipe 41 through the intake holes 42, and the filter cartridge 46 can filter dust, impurities, and other fine particles in the air.

[0031] In one embodiment, the intake assembly 401 further includes a threaded hole 45, a connection hole 47, and four limit grooves 48; The four limit grooves 48 are symmetrically formed in the inner sidewall of the intake passage 24. The threaded hole 45 is formed in the outer sidewall of one limit block 44. The connection hole 47 is formed in the outer sidewall of the output shaft 16 and communicated with the limit groove 48. The limit block 44 is slidably connected to the inner sidewall of the limit groove 48. Through the tight fit between the limit block 44 and the limit groove 48, the precise limitation and stable support of the position of the connecting pipe 43 can be achieved, ensuring that the connecting pipe 43 does not shift or shake when following the rotation of the output shaft 16. When the output shaft 16 starts to rotate, the limit block 44 is driven to rotate accordingly. At this time, the limit block 44 drives the connecting pipe 43 to rotate, and then the intake pipe 41 can follow the rotation of the output shaft 16.

[0032] In one embodiment, the position of the connection hole 47 corresponds to the position of the threaded hole 45. The outer sidewall of the connecting pipe 43 is slidably connected to the inner sidewall of the intake passage 24. When installing the intake pipe 41, insert the connecting pipe 43 into the intake passage 24, insert the limit block 44 into the limit groove 48, then align the connection hole 47 with the threaded hole 45, and use a screw to pass through the connection hole 47 and threadedly engage with the threaded hole 45, thereby limiting the position of the intake pipe 41. Similarly, when it is necessary to maintain or replace the filter cartridge 46 inside the intake pipe 41, the screw fixing the position of the intake pipe 41 can be removed, the fixing constraint on the intake pipe 41 can be released, and then the intake pipe 41 can be removed. At this time, the filter cartridge 46 can be easily accessed and disassembled and replaced as needed. Through this design, not only the stability of the structure is ensured, but also the maintenance process is simplified and the maintenance efficiency is improved.

[0033] When the present invention is in operation: The stator winding 22 is energized, and current begins to flow in the stator winding 22. At this time, magnetic fields are generated on both sides of the motor rotor disk 19 and act on the permanent magnets 20. The magnetic fields interact with the magnetic fields generated by the permanent magnets 20 to generate torque, causing the rotor disk 19 of the axial flux motor to rotate. The rotor disk 19 drives the output shaft 16, and thus the output of power can be achieved. When the axial flux motor is energized, the electromagnet 28 is energized. The electromagnet 28 adsorbs the adsorption disk 29. The adsorption disk 29 drives the guide rod 30, and the guide rod 30 drives the friction disk 32. At this time, the spring 33 is compressed under force. Since the rotating seat 31 is rotatably connected to the output shaft 16 through a bearing, during the operation of the output shaft 16, the rotating seat 31 will not rotate at high speed following the output shaft 16. During the operation of the axial flux motor, the working temperature of the motor is monitored by an internal temperature sensor. When the internal temperature of the axial flux motor reaches the rated temperature, the temperature sensor sends a signal to the external motor control system. The motor control system then controls the electromagnet 28 to cut off the power. At this time, the spring 33 pushes the friction disk 32. The friction disk 32 contacts the driving plate 17. Since the output shaft 16 is fixedly connected to the driving plate 17, the output shaft 16 drives the friction disk 32 to rotate through the driving plate 17. The friction disk 32 drives the rotating seat 31 to rotate through the guide rod 30. The rotating seat 31 drives the guide vane 27 to rotate. During the rotation of the guide vane 27, a negative pressure area is formed outside the through hole 26. Thus, external air can flow into the intake passage 24, and then flow into the interior of the motor through the exhaust holes 25. Since the exhaust holes 25 are symmetrically arranged front and back, the air can flow out from the front and back two directions. The air flow flows through the gap between the rotor and the stator, and then is discharged from the through hole 26. The internal and external air of the motor is replaced, realizing the heat dissipation of the axial flux motor, avoiding the accumulation of heat between the stator and the rotor, ensuring the service life of the motor, and improving the overall operation stability of the motor. When external air flows into the intake passage 24, the gas flows into the intake pipe 41 through the intake holes 42. The filter cartridge 46 can filter dust, impurities, and other fine particles in the air. Thus, the cleanliness of the internal environment of the motor can be maintained, and the risk of motor failure caused by dust accumulation is also significantly reduced. When it is necessary to maintain or replace the filter cartridge 46 inside the intake pipe 41, the screws fixing the position of the intake pipe 41 can be removed to release the fixing constraint on the intake pipe 41. Then, the intake pipe 41 can be removed. At this time, the filter cartridge 46 can be easily accessed and disassembled and replaced as needed. Through this design, not only the structural stability is ensured, but also the maintenance process is simplified, and the maintenance efficiency is improved.

[0034] As Figure 12As shown, the internal temperature (T) of the motor is monitored in real time through a temperature sensor (installed on the stator core 18). The control system triggers an action. The on-off threshold (T_set) of the electromagnet and the spring stiffness (k = 2400 N / m) are designed to match to ensure that: When T < T_set, the adsorption force of the electromagnet (F_e = 50 N) > the spring thrust (F_s = 12 N), and the system remains locked; When T ≥ T_set, F_e = 0, and F_s drives the friction disc to engage instantaneously (response time t < 0.1 s); The sequential control of the electromagnet - spring solves the problem of efficient heat dissipation in the compact space of the axial - flux motor through temperature - threshold triggering, zero standby energy consumption, and fast mechanical coupling. Its synergistic effect brings about a reduction in temperature rise.

[0035] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A high-stability axial flux motor, comprising a rear end cover (11), a front end cover (12), two stator cores (18), a rotor disk (19), an output shaft (16) and a support frame (23), characterized in that: The output shaft (16) is coaxially rotatably connected to the interior of the rear end cover (11) and the interior of the front end cover (12) via two bearings, the two stator cores (18) are symmetrically mounted inside the front end cover (12) and the interior of the rear end cover (11), and the rotor disk (19) is fixedly connected to the outer wall of the output shaft (16) via the support frame (23); A heat dissipation assembly (101) is mounted on the outer side wall of the output shaft (16), and the heat dissipation assembly (101) comprises two drive plates (17), a guide fan (27), two electromagnets (28), an adsorption plate (29), a guide rod (30), two rotating seats (31), a friction plate (32) and a spring (33); The guide fan (27) is fixedly connected to the outer wall of the rotating seat (31), one end of the guide rod (30) is fixedly connected to the adsorption plate (29), the other end of the guide rod (30) is fixedly connected to the friction plate (32), the spring (33) is sleeved on the outer wall of the guide rod (30), the adsorption plate (29) is adsorbed and fixed to the electromagnet (28) by magnetic force, the position of the friction plate (32) corresponds to the position of the drive plate (17), and the two drive plates (17) are symmetrically fixedly connected to the outer wall of the output shaft (16).

2. The high-stability axial flux motor according to claim 1, characterized in that: The two electromagnets (28) are symmetrically fixedly connected to the outer wall of the rear end cover (11) and the outer wall of the front end cover (12), the two rotating seats (31) are symmetrically rotationally connected to the outer wall of the output shaft (16), and the guide rod (30) is symmetrically slidingly connected to the inside of the rotating seat (31).

3. The high stability axial flux motor according to claim 2, characterized in that: The adsorption plate (29) and the friction plate (32) are respectively located on two sides of the rotating seat (31); one end of the spring (33) presses against the rotating seat (31), and the other end of the spring (33) presses against the friction plate (32).

4. The high-stability axial flux motor according to claim 1, characterized in that: The heat dissipation assembly (101) further comprises an air inlet channel (24), an air exhaust hole (25) and a through hole (26); A boss is provided in the middle of the output shaft (16); the air intake passage (24) is opened at the rear end of the output shaft (16) and extends inwardly to the boss; the exhaust hole (25) is symmetrically opened at the front surface and the rear surface of the boss on the output shaft (16); the exhaust hole (25) is communicated with the air intake passage (24); the through hole (26) is symmetrically opened at the front surface of the front end cover (12) and the rear surface of the rear end cover (11); the position of the guide fan (27) corresponds to the position of the through hole (26).

5. The high-stability axial flux motor according to claim 1, characterized in that: The front and rear surfaces of the rotor disk (19) are symmetrically fixedly connected with magnetic steel (20), the interior of the stator core (18) is wound with a stator winding (22), and the two stator cores (18) are symmetrically located on both sides of the rotor disk (19).

6. The high-stability axial flux motor according to claim 4, characterized in that: A protective cover (13) is fixedly connected to the rear surface of the rear cover (11) and the front surface of the front cover (12); a protective plate (14) is fixedly connected to the inner wall of the protective cover (13); the protective plate (14) is rotatably connected to the outer wall of the driving plate (17); and ventilation slots (15) are evenly arranged inside the protective plate (14).

7. The high-stability axial flux motor according to claim 4, characterized in that: An air intake assembly (401) is installed inside the air intake passage (24), and the air intake assembly (401) comprises an air intake pipe (41), an air intake hole (42), a connecting pipe (43), four stop blocks (44) and a filter cartridge (46); One end of the connecting pipe (43) is fixedly connected to and communicates with one end of the air intake pipe (41); the air intake holes (42) are evenly arranged on the outer wall of the air intake pipe (41); the four limit blocks (44) are symmetrically fixedly connected to the outer wall of the connecting pipe (43); and the filter cartridge (46) is installed inside the air intake pipe (41).

8. The high-stability axial flux motor according to claim 7, characterized in that: The air intake assembly (401) further comprises a threaded hole (45), a connecting hole (47) and four limiting grooves (48); The four limiting grooves (48) are symmetrically formed on the inner side wall of the air intake passage (24), the threaded hole (45) is formed on the outer side wall of one limiting block (44), the connecting hole (47) is formed on the outer side wall of the output shaft (16) and is connected to the limiting groove (48), and the limiting block (44) is slidably connected to the inner side wall of the limiting groove (48).

9. The high-stability axial flux motor according to claim 8, characterized in that: The position of the connecting hole (47) corresponds to the position of the threaded hole (45), and the outer side wall of the connecting pipe (43) is slidably connected to the inner side wall of the air intake passage (24).

10. The high stability axial flux motor according to claim 1, characterized in that: The front end cover (12) is fixedly connected to the rear end cover (11) via bolts.

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