Self-cooling axial flux motor

Abstract

The invention discloses a self-cooling axial magnetic flux motor, and relates to the technical field of axial magnetic flux motors, the self-cooling axial magnetic flux motor comprises a rear cover plate and a front cover plate, the inner walls of the rear cover plate and the front cover plate are respectively embedded and rotatably connected with a fixed ring, the surface of the fixed ring is rotatably connected with a rotor yoke, and the surface of the rear cover plate is detachably connected with a machine cover; the motor further comprises a turbulent flow structure, and the turbulent flow structure comprises five groups of sensing bases which are fixedly connected to the outer wall of the rotor yoke and are circumferentially arranged on the surface of the rotor yoke, mounting grooves formed in the surfaces of the sensing bases, and turbulent flow assemblies rotationally connected to the interiors of the mounting grooves. By combining a passive adjusting mechanism of centrifugal force and fluid dynamics and a passive adjusting mechanism of the shape memory alloy wires, the included angle of the blades can be automatically adjusted according to the rotating speed and the temperature of the rotor, so that the air flow is optimized, the heat dissipation efficiency is improved, and the working temperature of the motor is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of axial flux motors, in particular to a self-cooling axial flux motor. Background Art

[0002] According to the direction of the magnetic flux path, motors can be divided into axial flux motors and radial flux motors. Axial flux motors refer to motors in which the magnetic flux flows along the axial direction of the motor, that is, along the axis of the motor. They are also commonly called disc motors or flat motors.

[0003] The operation of the axial flux motor is based on the arrangement of the magnetic poles of the axial flux motor stator along the axis. The rotor is usually a cylindrical structure. The magnetic flux passes through the central axis of the rotor. When the current passes through the winding of the stator, the magnetic field generated passes through the rotor along the axis. According to the Lorentz force law, this magnetic field will generate torque in the rotor, thereby driving the rotor to rotate. Intelligent electronic controllers and sensors are used to determine the position of the rotor and decide which coil to energize based on this information to ensure continuous rotation of the motor. Due to the disc structure, the axial flux motor has the characteristics of small size and light weight, which is suitable for occasions where space and weight are strictly limited. It usually has a high power density and is suitable for efficient and compact designs.

[0004] However, when the axial flux motor is working, current will flow through its internal windings. As the current continues to flow, the resistance in the windings will continuously convert electrical energy into heat energy, generating Joule heat, causing the winding temperature to rise. At the same time, the magnetic field inside the motor is constantly changing. This changing magnetic field will induce eddy currents in the motor's iron core and other components. When the eddy currents flow in the iron core, they will also generate heat, which further exacerbates the temperature rise inside the motor. When the temperature inside the motor is too high, if there is a lack of a self-cooling system, the performance of the motor's insulation material will deteriorate, reducing the insulation strength, thereby increasing the risk of the motor short circuit. Long-term operation in a high temperature environment will also accelerate the wear of mechanical components such as the motor bearings, shorten the motor's service life, and reduce the motor's reliability and stability. Summary of the invention

[0005] The object of the present invention is to provide a self-cooling axial flux motor to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-cooling axial flux motor, comprising a rear cover plate and a front cover plate, wherein the inner walls of the rear cover plate and the front cover plate are respectively embedded with a fixing ring rotatably connected, the surface of the fixing ring is rotatably connected to a rotor yoke, and the surface of the rear cover plate is detachably connected to an organic cover; and further comprising,

[0007] A spoiler structure, the spoiler structure comprising: five sets of sensor bases fixedly connected to the outer wall of the rotor yoke and arranged circumferentially on the surface of the rotor yoke, a mounting groove opened on the surface of the sensor base, and a spoiler assembly rotatably connected inside the mounting groove;

[0008] A self-cooling structure, the self-cooling structure includes a roll sheet fixedly connected to one end of the spoiler assembly, a moving sheet fixedly connected to one end of the roll sheet, a position sensor arranged on the surface of the moving sheet, and a self-cooling assembly fixedly connected to the surface of the machine cover and controlled by using the moving sheet position information sensed by the position sensor.

[0009] As a preferred solution of the self-cooling axial flux motor described in the present invention, the center point of the fixed ring is rotatably connected to a driving shaft whose surface is fixedly connected to the surface of the rotor yoke, the surface of the driving shaft is rotatably connected to a stator, the stator is arranged between the two rotor yokes, and the self-cooling component is arranged on the outer wall surface of the stator.

[0010] As a preferred solution of the self-cooling axial flux motor described in the present invention, the spoiler assembly includes a fixed base plate whose bottom is fixedly connected to the surface of the rotor yoke and whose side is fixedly connected to the surface of the mounting groove, two support columns fixedly connected to the fixed base plate and in symmetrical positions, and a connecting plate rotatably connected between the two support columns.

[0011] As a preferred solution of the self-cooling axial flux motor described in the present invention, wherein: the end of the connecting plate away from the support column is fixedly connected to a rotating shaft 1, an elastic sheet is fixedly connected between the connecting plate and the fixed base plate, and a blade 1 is fixedly connected to the surface of the rotating shaft 1.

[0012] As a preferred solution of the self-cooling axial flux motor described in the present invention, wherein: the surface of blade one is fixedly connected with two connecting seats in symmetrical positions, the surface of the rotor yoke is fixedly connected with a fixing seat corresponding to the position of the connecting seat, the fixing seat and the connecting seat are collinear, and a shape memory alloy wire is fixedly connected between the fixing seat and the connecting seat.

[0013] As a preferred solution of the self-cooling axial flux motor described in the present invention, the surface of the rotor yoke is fixedly connected to a base located on the side of the sensor base, the surface of the base is provided with a groove, the surface of the groove is fixedly connected to a bearing seat, and the bottom is fixedly connected to the surface of the rotor yoke.

[0014] As a preferred solution of the self-cooling axial flux motor described in the present invention, wherein: two fixed blocks in symmetrical positions are fixedly connected to the surface of the bearing seat, a bridge plate is rotatably connected between the two fixed blocks, one end of the bridge plate away from the fixed block is fixedly connected to a rotating shaft 2, and an elastic strip is fixedly connected between the bridge plate and the bearing seat.

[0015] As a preferred solution of the self-cooling axial flux motor described in the present invention, wherein: the surface of the rotating shaft 2 is fixedly connected to the blade 2, the outer surface of the blade 2 is fixedly connected to a connecting rope arranged in a linear array on the blade 2, the end of the connecting rope away from the blade 2 is fixedly connected to a centrifugal block, the inner surface of the blade 2 close to the rotating shaft 2 is fixedly connected to two mounting seats, a support shaft is rotatably connected between the two mounting seats, and an adjustment plate is fixedly connected to the surface of the support shaft.

[0016] As a preferred solution of the self-cooling axial flux motor described in the present invention, the self-cooling component includes: a plurality of liquid storage bars fixedly connected to the machine cover and arranged circumferentially on the surface of the machine cover, an infusion tube fixedly connected to the surface of the liquid storage bars, and a condenser fixedly connected to the infusion tube, and the condenser is woundly connected to the surface of the stator.

[0017] As a preferred solution of the self-cooling axial flux motor of the present invention, a plurality of rear filter screens are fixedly connected to the surface of the rear cover plate, and a plurality of front waterproof screens are fixedly connected to the surface of the front cover plate.

[0018] The beneficial effects of the present invention are as follows: by combining the passive adjustment mechanism of centrifugal force and fluid dynamics and the passive adjustment mechanism of shape memory alloy wire, the blade angle can be automatically adjusted according to the rotation speed and temperature of the rotor, thereby optimizing the air flow, improving the heat dissipation efficiency, effectively reducing the operating temperature inside the motor, and enhancing the performance and reliability of the motor. The cooling condenser tube of the automatic infusion is usually designed to be a winding or spiral shape, which increases the contact area with the stator surface, thereby improving the heat dissipation efficiency. A larger contact area means that more heat can be absorbed and conducted at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the self-cooling axial flux motor of the present invention.

[0021] Figure 2 It is a schematic diagram of the stator structure of the self-cooling axial flux motor of the present invention.

[0022] Figure 3 It is a schematic diagram of the drive shaft structure of the self-cooling axial flux motor of the present invention.

[0023] Figure 4 It is a schematic diagram of the rotor yoke structure of the self-cooling axial flux motor of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the sensor base of the self-cooling axial flux motor of the present invention.

[0025] Figure 6 for Figure 5 Enlarged schematic diagram at point A in the middle.

[0026] Figure 7 for Figure 5 Enlarged schematic diagram of point B in the middle.

[0027] Figure 8 It is a schematic diagram of the base structure of the self-cooling axial flux motor of the present invention.

[0028] Fig. 9 for Figure 8 Enlarged schematic diagram at point C in the middle.

[0029] Fig.10 It is a schematic diagram of the structure of blade 2 of the self-cooling axial flux motor of the present invention.

[0030] Fig.11 for Fig.10 Enlarged schematic diagram at point D in the middle.

[0031] Fig.12 It is a schematic plan view of the rear cover plate of the self-cooling axial flux motor of the present invention.

[0032] In the figure: 1, rear cover; 2, machine cover; 3, front cover; 4, liquid storage bar; 5, fixing ring; 6, rotor yoke; 7, sensor base; 8, mounting groove; 9, fixing bottom plate; 10, support column; 11, elastic sheet; 12, connecting plate; 13, rotating shaft 1; 14, blade 1; 15, connecting seat; 16, shape memory alloy wire; 17, fixing seat; 18, winding sheet; 19, position sensor; 20, moving sheet; 21. Anti-slip block; 22. Bearing seat; 23. Fixed block; 24. Elastic strip; 25. Bridge plate; 26. Rotating shaft 2; 27. Blade 2; 28. Mounting seat; 29. ​​Support shaft; 30. Adjusting piece; 31. Connecting rope; 32. Centrifugal block; 33. Rear filter; 34. Driving shaft; 35. Front waterproof net; 36. Stator; 37. Condenser; 38. Infusion tube; 39. Base; 40. Groove. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] Example 1, reference Figure 1-Figure 7 , Fig.12 , which is the first embodiment of the present invention, provides a self-cooling axial flux motor, the device includes a rear cover plate 1 and a front cover plate 3, the inner walls of the rear cover plate 1 and the front cover plate 3 are respectively embedded with a fixing ring 5 rotatably connected, the surface of the fixing ring 5 is rotatably connected with a rotor yoke 6, the surface of the rear cover plate 1 is detachably connected with a cover 2; the rear cover plate 1 and the front cover plate 3 are embedded with a fixing ring 5 rotatably connected to provide stable support for the rotor yoke 6, the rotor yoke 6 rotates on the fixing ring 5 to generate a magnetic field to drive the motor, the cover 2 is detachably connected to the rear cover plate 1 to protect the inside of the motor, and also includes,

[0038] The spoiler structure includes five groups of sensor bases 7 fixedly connected to the outer wall of the rotor yoke 6 and arranged in a circle on the surface of the rotor yoke 6, mounting grooves 8 opened on the surface of the sensor bases 7, and a spoiler component rotatably connected to the inside of the mounting grooves 8; the mounting grooves 8 are used to provide space for the operation of the spoiler component.

[0039] The sensor base 7 is used to detect the temperature of the surface of the rotor yoke 6 and the angle data of the blade 14, and transmit these data to the control system. If the temperature rises abnormally or the blade angle deviates from the predetermined range, the control system can issue a fault warning to prompt the operator to check or repair. The control system can also record the data transmitted by the sensor base 7 for subsequent analysis and diagnosis. These data can help engineers understand the operating status of the motor and optimize the design and control strategy of the motor.

[0040] The spoiler assembly automatically adjusts according to the rotor speed and temperature, thereby optimizing air flow, improving heat dissipation efficiency, and effectively reducing the operating temperature inside the motor.

[0041] The self-cooling structure includes a roll sheet 18 fixedly connected to one end of the spoiler assembly, a moving sheet 20 fixedly connected to one end of the roll sheet 18, a position sensor 19 arranged on the surface of the moving sheet 20, and a self-cooling assembly fixedly connected to the surface of the cover 2 and controlled by the position information of the moving sheet 20 sensed by the position sensor 19.

[0042] When the spoiler component is working, it will drive the rotation of the reel 18, and the reel 18 will drive the moving piece 20 to move on the position sensor 19. An anti-fall-off block 21 is provided at one end of the moving piece 20 to prevent the moving piece 20 from falling off the position sensor 19. After the position sensor 19 detects the position of the moving piece 20, it will output a corresponding electrical signal. This signal needs to be transmitted to the control system for processing, and the signal transmission is carried out wirelessly; after the motor control system receives the signal, the control system controls the operation of the self-cooling component to automatically cool the surface of the stator 36, thereby reducing the temperature inside the motor.

[0043] Optionally, a plurality of rear filters 33 are fixedly connected to the surface of the rear cover 1, and a plurality of front waterproof nets 35 are fixedly connected to the surface of the front cover 3. Both the front cover 3 and the rear cover 1 of the motor are designed with air holes to promote heat dissipation, wherein the rear filter 33 is installed on the surface of the rear cover 1 to prevent impurities from entering, and the front cover 3 is equipped with a front waterproof net 35 to prevent water from intruding, which together ensure the efficient and safe operation of the motor.

[0044] The spoiler assembly includes a fixed bottom plate 9 whose bottom is fixedly connected to the surface of the rotor yoke 6 and whose side is fixedly connected to the surface of the mounting groove 8, two support columns 10 fixedly connected to the fixed bottom plate 9 and in symmetrical positions, and a connecting plate 12 rotatably connected between the two support columns 10. The structure of the fixed bottom plate 9, the support column 10, the connecting plate 12 and the elastic sheet 11 forms a relatively soft hinge structure, which is used to drive the rotating shaft 13 and the blade 14 to rotate on the support column 10. The angle between the connecting plate 12 and the fixed bottom plate 9 is the angle between the blade 14 and the surface of the rotor yoke 6.

[0045] Among them, the end of the connecting plate 12 away from the support column 10 is fixedly connected to the rotating shaft 13, the elastic sheet 11 is fixedly connected between the connecting plate 12 and the fixed bottom plate 9, the surface of the rotating shaft 13 is fixedly connected to the blade 14, the surface of the blade 14 is fixedly connected to two connecting seats 15 in symmetrical positions, the surface of the rotor yoke 6 is fixedly connected to a fixed seat 17 corresponding to the position of the connecting seat 15, the fixed seat 17 and the connecting seat 15 are in line, and a shape memory alloy 16 wire is fixedly connected between the fixed seat 17 and the connecting seat 15. The shape memory alloy 16 wire is preset to a specific shape and recovery temperature during manufacturing. For example, it can be preset that when the temperature reaches 160 degrees Celsius, the shape memory alloy 16 wire will shrink, driving the blade angle to decrease; when the temperature drops to 80 degrees Celsius, the shape memory alloy 16 wire will stretch, driving the blade angle to increase.

[0046] Another function of the sensor base 7 is to monitor the temperature of the rotor in real time. The signal of the sensor base 7 can be used to calibrate the response of the shape memory alloy 16 wires to ensure that the adjustment of the blade angle matches the actual temperature change. For example, if the rotor temperature is 160 degrees Celsius, but the preset response temperature of the shape memory alloy 16 wires is 155 degrees Celsius, the motor control system can increase the current of the shape memory alloy 16 wires to increase the phase change temperature of the shape memory alloy 16 wires to 160 degrees Celsius, ensuring that the adjustment of the blade angle matches the actual temperature change.

[0047] During use, when the internal heat of the motor is too large or too high, the shape memory alloy 16 wire is manufactured and its recovery temperature and shape are preset through the heat treatment process. For example, when the temperature reaches 160 degrees Celsius, the shape memory alloy 16 wire will shrink, driving the blade 14 and the shaft 13 to rotate forward on the support column 10, and the angle will decrease; when the temperature drops to 80 degrees Celsius, the shape memory alloy 16 wire will stretch, driving the blade 14 and the shaft 13 to rotate in the opposite direction on the support column 10, driving the blade angle to increase.

[0048] Before the motor starts, the blade angle is set to an initial value. At this time, the shape memory alloy 16 wire is in a natural state, and no external force is applied. When the rotor temperature rises to 160 degrees Celsius, the shape memory alloy 16 wire begins to shrink. The shrinking shape memory alloy 16 wire drives the blade to rotate around the elastic hinge structure through the fixing seat 17 and the connecting seat 15, so that the blade angle decreases.

[0049] The change in the angle between blade 14 can be calculated by the lever principle. Assuming that the contraction or extension of the shape memory alloy wire 16 is ΔL, and the distance from the root of the blade to the connection point is R, the change in the angle between blade 14 and rotor yoke 6 Δθ can be calculated by the following formula:

[0050]

[0051] For example, if the shape memory alloy wire shrinks by 5 mm and the distance from the root of the blade 14 to the connection point is 10 cm, then:

[0052]

[0053] Through the passive adjustment mechanism of the shape memory alloy 16 wire, the blade-14 angle can be automatically adjusted according to the rotor temperature, optimizing the air flow, improving the heat dissipation efficiency, and reducing the operating temperature of the motor. No external power supply and complex mechanical transmission device are required, reducing the complexity and maintenance cost of the system. The entire adjustment mechanism is simple and reliable, easy to install and maintain. The mechanical structure design takes into account strength and stability, and the limit device and angle mark ensure the long-term stable operation of the system. The material selection of the shape memory alloy 16 wire ensures reliability and durability under different working conditions.

[0054] When the blades rotate at high speed, the smaller angle reduces the angle of attack between the blades and the airflow, making it easier for the airflow to flow smoothly along the blade surface. This design reduces the separation of the airflow on the blades and the generation of vortices, thereby improving the flow efficiency and power performance of the airflow. The smaller angle also means that the blades have a smaller frontal area when rotating at high speed, but the airflow speed per unit area increases, so it can generate a stronger airflow. This design helps to more effectively remove the heat generated by the motor and improve the heat dissipation efficiency.

[0055] Example 2, reference Figure 1-Figure 11 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the surface of the rotor yoke 6 is fixedly connected with a base 39 located on the side of the sensor base 7, the surface of the base 39 is provided with a groove 40, the surface of the groove 40 is fixedly connected with a bearing seat 22, the bottom of which is fixedly connected to the surface of the rotor yoke 6. The base 39 provides additional support and stability, and has a groove 40 on its surface to accommodate subsequent components, while the bearing seat 22 is fixedly connected to the surface of the rotor yoke 6 to support and fix other related components to ensure the firmness and reliable operation of the overall structure.

[0056] Compared with the first embodiment, further, two fixed blocks 23 in symmetrical positions are fixedly connected to the surface of the bearing seat 22, a bridge plate 25 is rotatably connected between the two fixed blocks 23, a second rotation axis 26 is fixedly connected to one end of the bridge plate 25 away from the fixed block 23, and an elastic strip 24 is fixedly connected between the bridge plate 25 and the bearing seat 22. The bearing seat 22, the fixed block 23, the bridge plate 25 and the elastic strip 24 together form an elastic hinge structure.

[0057] Furthermore, the surface of the second rotating shaft 26 is fixedly connected with the second blade 27, and the outer surface of the second blade 27 is fixedly connected with a connecting rope 31 arranged in a linear array on the second blade 27, and the end of the connecting rope 31 away from the second blade 27 is fixedly connected with a centrifugal block 32, and the inner surface of the second blade 27 close to the second rotating shaft 26 is fixedly connected with two mounting seats 28, and a support shaft 29 is rotatably connected between the two mounting seats 28, and an adjustment plate 30 is fixedly connected to the surface of the support shaft 29. The centrifugal force generated by the rotation of the rotor and the pressure difference generated by the air flow are used to change the angle of the heat dissipation blades through a passive adjustment mechanism, and this passive adjustment mechanism is composed of the second blade 27, the adjustment plate 30 and the centrifugal block 32. The blade angle can be automatically adjusted according to the rotation speed of the rotor to optimize the air flow and heat dissipation effect.

[0058] During use, when the rotor yoke 6 rotates, the centrifugal block 32 generates an outward centrifugal force. The magnitude of the centrifugal force is proportional to the rotation speed of the rotor yoke 6. The higher the rotation speed, the greater the centrifugal force. The centrifugal force is transmitted to the blade 2 27 through the elastic hinge, so that the angle of the blade 2 27 is reduced. For example, when the rotation speed of the rotor yoke 6 is 1000r / min, the centrifugal force is small, and the angle of the blade 2 27 is maintained at 30 degrees; when the rotation speed increases to 2000r / min, the centrifugal force increases, and the angle of the blade 2 27 is reduced to 20 degrees. The rotating blade 2 27 cuts in the air to generate airflow, and the regulating plate 30 generates a torque under the action of the air flow. The direction of this torque is the same as the direction of the centrifugal force, further reducing the angle of the blade 2 27. For example, when the rotation speed of the rotor yoke 6 is low, the torque generated by the regulating plate 30 is small, and the angle of the blade 2 27 is mainly adjusted by the centrifugal force; when the rotation speed of the rotor yoke 6 is high, the torque generated by the regulating plate 30 increases, further reducing the angle of the blade 2 27, and optimizing the air flow. The elastic hinge has a restoring force, and when the centrifugal force and the fluid dynamic moment disappear, the elastic hinge can restore the blade 2 27 to the initial angle. This ensures that the blade 2 27 can maintain a stable initial position at low speed or shutdown.

[0059] By adjusting the blade angle, the motor can achieve the best heat dissipation effect at different speeds. When running at high speed, reducing the blade angle can increase air flow, improve heat dissipation efficiency, and prevent the motor from overheating. When running at low speed, a larger blade angle can ensure sufficient air flow and maintain the normal temperature of the motor.

[0060] The remaining structures are the same as those of Example 1.

[0061] Example 3, reference Figure 1-Figure 7, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the center point of the fixed ring 5 is rotatably connected to a drive shaft 34, the surface of which is fixedly connected to the surface of the rotor yoke 6, the surface of the drive shaft 34 is rotatably connected to a stator 36, the stator 36 is arranged between the two rotor yokes 6, and the self-cooling component is arranged on the outer wall surface of the stator 36.

[0062] Compared with Example 2, the self-cooling component further includes a plurality of liquid storage bars 4 fixedly connected to the machine cover 2 and arranged in a circle on the surface of the machine cover 2, an infusion tube 38 fixedly connected to the surface of the liquid storage bar 4, and a condenser tube 37 fixedly connected to the infusion tube 38, and the condenser tube 37 is woundly connected to the surface of the stator 36.

[0063] The control system triggers the control mechanism of the self-cooling component by receiving the position signal of the moving plate 20 transmitted wirelessly by the position sensor 19, and after processing, triggers the control mechanism of the self-cooling component. Specifically, the control system instructs to start the infusion tube 38 connected to the liquid storage bar 4, and uses the principle of gravity and other principles to sequentially transfer the cooling liquid pre-stored in the liquid storage bar 4 to the infusion tube 38, and then guides it to the condenser 37 tightly wound on the surface of the stator 36. The liquid in the condenser 37 evaporates or convects under the action of the heat generated by the stator 36, effectively absorbing and taking away the heat inside the stator 36 and the motor, realizing an automatic and efficient cooling process.

[0064] The remaining structure is the same as that of Example 2.

[0065] Example 3, reference Figure 1-Figure 7 , which is the third embodiment of the present invention, is different from the second embodiment in that: the center point of the fixed ring is rotatably connected to a driving shaft, the surface of which is fixedly connected to the surface of the rotor yoke, the surface of the driving shaft is rotatably connected to a stator, the stator is arranged between the two rotor yokes, and the self-cooling component is arranged on the outer wall surface of the stator.

[0066] Compared with Example 2, the self-cooling component further includes a plurality of liquid storage bars fixedly connected to the machine cover and arranged in a circle on the surface of the machine cover, a liquid infusion tube fixedly connected to the surface of the liquid storage bars, and a condenser fixedly connected to the liquid infusion tube, and the condenser is woundly connected to the surface of the stator.

[0067] The control system receives the position signal of the sheet moving device transmitted wirelessly by the position sensor, and after processing, triggers the control mechanism of the self-cooling component. Specifically, the control system instructs to start the infusion tube connected to the liquid storage bar, and uses gravity and other principles to sequentially transfer the cooling liquid pre-stored in the liquid storage bar to the infusion tube, and then guides it to the condenser tube tightly wrapped around the surface of the stator. The liquid in the condenser tube evaporates or convects under the heat generated by the stator, effectively absorbing and taking away the heat inside the stator and the motor, realizing an automatic and efficient cooling process.

[0068] The remaining structure is the same as that of Example 2.

[0069] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0070] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A self-cooling axial flux motor, comprising a rear cover plate (1) and a front cover plate (3), wherein a fixing ring (5) is embedded and rotatably connected to the inner wall of the rear cover plate (1) and the inner wall of the front cover plate (3), a rotor yoke (6) is rotatably connected to the surface of the fixing ring (5), and a cover (2) is detachably connected to the surface of the rear cover plate (1); characterized in that: Also includes, A spoiler structure, the spoiler structure comprising: five groups of sensor bases (7) fixedly connected to the outer wall of the rotor yoke (6) and arranged in a circumferential manner on the surface of the rotor yoke (6), a mounting groove (8) provided on the surface of the sensor base (7), and a spoiler component rotatably connected inside the mounting groove (8); A self-cooling structure, the self-cooling structure comprising a roll sheet (18) fixedly connected to one end of the spoiler assembly, a moving sheet (20) fixedly connected to one end of the roll sheet (18), a position sensor (19) arranged on the surface of the moving sheet (20), and a self-cooling assembly fixedly connected to the surface of the cover (2) and controlled by using the position information of the moving sheet (20) sensed by the position sensor (19).

2. A self-cooling axial flux motor according to claim 1, characterized in that: The center point of the fixed ring (5) is rotatably connected to a drive shaft (34) whose surface is fixedly connected to the surface of the rotor yoke (6). The surface of the drive shaft (34) is rotatably connected to a stator (36). The stator (36) is arranged between the two rotor yokes (6). The self-cooling component is arranged on the outer wall surface of the stator (36).

3. A self-cooling axial flux motor according to claim 2, characterized in that: The spoiler assembly comprises a fixed base plate (9) whose bottom is fixedly connected to the surface of the rotor yoke (6) and whose side is fixedly connected to the surface of the mounting groove (8), two support columns (10) fixedly connected to the fixed base plate (9) and in symmetrical positions, and a connecting plate (12) rotatably connected between the two support columns (10).

4. A self-cooling axial flux motor according to claim 3, characterized in that: One end of the connecting plate (12) away from the supporting column (10) is fixedly connected to a rotating shaft (13), an elastic sheet (11) is fixedly connected between the connecting plate (12) and the fixed bottom plate (9), and a blade (14) is fixedly connected to the surface of the rotating shaft (13).

5. A self-cooling axial flux motor according to claim 4, characterized in that: The surface of the blade 1 (14) is fixedly connected to two connecting seats (15) at symmetrical positions, the surface of the rotor yoke (6) is fixedly connected to a fixing seat (17) corresponding to the position of the connecting seat (15), the fixing seat (17) and the connecting seat (15) are collinear, and a shape memory alloy wire (16) is fixedly connected between the fixing seat (17) and the connecting seat (15).

6. A self-cooling axial flux motor according to claim 5, characterized in that: The surface of the rotor yoke (6) is fixedly connected to a base (39) located on the side of the sensor base (7), the surface of the base (39) is provided with a groove (40), the surface of the groove (40) is fixedly connected to a bearing seat (22) whose bottom is fixedly connected to the surface of the rotor yoke (6).

7. A self-cooling axial flux motor according to claim 6, characterized in that: Two fixed blocks (23) in symmetrical positions are fixedly connected to the surface of the bearing seat (22); a bridge plate (25) is rotatably connected between the two fixed blocks (23); one end of the bridge plate (25) away from the fixed block (23) is fixedly connected to a second rotating shaft (26); and an elastic strip (24) is fixedly connected between the bridge plate (25) and the bearing seat (22).

8. A self-cooling axial flux motor according to claim 7, characterized in that: The surface of the second rotating shaft (26) is fixedly connected with a second blade (27), the outer surface of the second blade (27) is fixedly connected with a connecting rope (31) arranged in a linear array on the second blade (27), one end of the connecting rope (31) away from the second blade (27) is fixedly connected with a centrifugal block (32), the inner surface of the second blade (27) close to the second rotating shaft (26) is fixedly connected with two mounting seats (28), a support shaft (29) is rotatably connected between the two mounting seats (28), and an adjusting piece (30) is fixedly connected to the surface of the support shaft (29).

9. A self-cooling axial flux motor according to claim 8, characterized in that: The self-cooling component includes a plurality of liquid storage bars (4) fixedly connected to the machine cover (2) and arranged in a circular pattern on the surface of the machine cover (2), a liquid infusion tube (38) fixedly connected to the surface of the liquid storage bars (4), and a condenser tube (37) fixedly connected to the liquid infusion tube (38), wherein the condenser tube (37) is connected to the surface of the stator (36) in a winding manner.

10. A self-cooling axial flux motor according to claim 9, characterized in that: A plurality of rear filter nets (33) are fixedly connected to the surface of the rear cover plate (1), and a plurality of front waterproof nets (35) are fixedly connected to the surface of the front cover plate (3).

Images