Non-pneumatic electric wheel based on hub motor and temperature control method thereof

Abstract

The application discloses a kind of based on hub motor's non-inflatable electric wheel and its temperature control method, non-inflatable electric wheel includes hub, several spokes, rim, tread, main shaft, fixed cylinder, fixed link, first to third bearing, connecting disc, first shell, second shell, hub motor, opening and closing module and heat dissipation module;Opening and closing module includes gear disc, fourth bearing, shell motor, connecting cylinder and N transmission unit;Transmission unit includes fixed rod, transmission cylinder, transmission bearing, transmission screw and gear ring.Working, by controlling opening and closing module and heat dissipation module to tread or hub motor is radiated, compared with prior art, the application structure design is exquisite, flexibility is high, stability is strong, with higher practical value, for tire temperature and hub motor temperature control has important significance.

Description

Technical Field

[0001] This invention relates to the field of hub motor temperature and tire temperature control, and more particularly to a non-pneumatic electric wheel based on a hub motor and its temperature control method. Background Technology

[0002] When the hub motor heats up, the temperature of the motor windings will rise. The windings react strongly to high temperatures, which will accelerate aging, reduce lifespan, and even cause short circuits and malfunctions. Increased tire temperature will accelerate the aging of tire rubber, reducing the tensile strength and wear resistance of the tire carcass material. Excessive temperature will also lead to increased fuel consumption and the risk of tire blowout. Conversely, excessively low tire temperature will increase tire rubber wear, reduce tire life, and increase the safety risks of driving.

[0003] Existing hub motor temperature and tire temperature control structures and methods have drawbacks such as requiring additional structures and having a relatively singular control objective. Chinese invention patent application CN107160958A discloses a car tire cooling device, including a base mounted on the inner side of the wheel arch, with a blower impeller mounted on the base to blow air towards the tire. However, this patent only cools the exterior of the tire and does not consider cooling the interior. Chinese invention patent application CN102745024A discloses a self-heating tire, including a tire carcass with an internally embedded heating element and temperature sensor. The heating element is connected in series with a control unit and an onboard power supply, and the temperature sensor is connected to the control unit. While connected, this invention utilizes an external power source, resulting in high energy consumption and certain risks. The issue of utilizing internal heat is not addressed. Chinese invention patent application CN218071234U discloses a hub motor cooling device, including an inlet flow channel external connecting pipe, an outlet flow channel external connecting pipe, an inner sealing plate, an inner flow channel plate, two inner and outer connecting pipes, an outer flow channel plate, an outer sealing plate, an inner flow channel, and an outer flow channel. However, this patent requires the addition of coolant. When the hub motor temperature is too high, the coolant's heat dissipation effect will deteriorate, necessitating a switch to air cooling. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies mentioned in the background art by providing a non-pneumatic electric wheel based on a hub motor and a method for controlling its temperature.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A non-pneumatic electric wheel based on a hub motor includes a hub, several spokes, a rim, a tread, a main shaft, a fixed cylinder, a fastener, first to third bearings, a connecting disc, a first housing, a second housing, a hub motor, an opening and closing module, and a heat dissipation module; The hub includes a side wall and an end wall. The side wall is a hollow cylinder with open ends, and the end wall is annular. The inner wall of the end wall and one end of the side wall are coaxially and sealed together. The plurality of spokes are circumferentially and evenly arranged between the hub and the rim, with one end fixed to the outer wall of the hub sidewall and the other end fixed to the inner wall of the rim sidewall, so that the hub is concentrically arranged within the rim. The tread is provided on the outer surface of the rim; The fixed cylinder and the connecting plate are both disposed inside the hub. The fixed cylinder is a hollow cylinder with one end open. The connecting plate is annular and fits around the fixed cylinder. It is coaxially connected to the fixed cylinder through a third bearing. The outer ring of the third bearing is coaxially fixed to the inner wall of the connecting plate, and the inner ring is coaxially fixed to the outer wall of the fixed cylinder. The connecting disc and the hub are provided with M circumferentially evenly arranged fixing holes on their end walls, and are fixed together by M bolts to make the connecting disc and the hub coaxial. M is a natural number greater than or equal to 3. One end of the main shaft extends into the fixed cylinder, and the other end is connected to the vehicle frame; the first and second bearings are respectively located at both ends of the fixed cylinder, with their outer rings coaxially fixed to the inner wall of the fixed cylinder and their inner rings coaxially fixed to the main shaft; One end of the fastener is fixedly connected to the fixed cylinder, and the other end is fixedly connected to the vehicle frame; The first housing is a hollow cylinder with an opening at one end and a through hole at the center of the other end. It is fitted outside the fixed cylinder, and the end wall with the through hole is coaxially fixed to the connecting plate. The hub motor is a hollow motor, with its stator sleeved outside the fixed cylinder and coaxially fixed to the outer wall of the fixed cylinder. The rotor is coaxially fixed to the end wall of the first housing with a through hole. The second housing includes a mating part, a connecting part, and a mounting part. The mating part and the mounting part are both hollow cylinders with openings at both ends. The connecting part is annular, with its outer wall coaxially and sealed to one end of the mating part, and its inner wall coaxially and sealed to one end of the mounting part. The outer diameter of the mating part is equal to the inner diameter of the first housing, and the inner diameter of the mounting part is larger than the outer diameter of the fixed cylinder. The opening and closing module includes a gear disk, a fourth bearing, a housing motor, a connecting cylinder, and N transmission units, where N is a natural number greater than or equal to 3; The transmission unit includes a fixed rod, a transmission cylinder, a transmission bearing, a transmission screw, and a gear ring; The transmission cylinder is a cylinder with a threaded blind hole at one end for engaging with the transmission screw, and a mounting blind hole at the other end. One end of the fixing rod extends into the mounting blind hole and is coaxially connected to the transmission cylinder through a transmission bearing; the transmission bearing is set in the mounting blind hole, with its inner ring coaxially fixed to the fixing rod and its outer ring coaxially fixed to the transmission cylinder; One end of the transmission screw is inserted into the threaded blind hole of the transmission cylinder and is threadedly connected to the transmission cylinder; The gear ring is sleeved outside the transmission cylinder and is coaxially and fixedly connected to the transmission cylinder. The N transmission units are circumferentially evenly arranged between the first housing and the rotor of the hub motor. The fixing rods are all parallel to the axis of the first housing. The end of the fixing rod away from its transmission cylinder is fixedly connected to the end wall of the first housing. The end of the transmission screw located outside the mounting blind hole is fixedly connected to the end of the mating part of the second housing away from the connecting part, so that the second housing and the first housing are coaxial. The gear disk has a through hole in the center and is coaxially connected to the fourth bearing; the outer ring of the fourth bearing and the gear disk are coaxially fixed at the through hole in the center, and the inner ring is coaxially fixed to the fixed cylinder; the gear disk meshes with the gear rings of N transmission units; The housing motor is a hollow motor, with the stator sleeved outside the fixed cylinder and coaxially fixed to the outer wall of the fixed cylinder. The connecting cylinder is a hollow cylinder with openings at both ends. It is fitted outside the fixed cylinder. One end is coaxially fixed to the rotor of the motor in the housing, and the other end is coaxially fixed to the gear disk. The housing motor is used to drive the gear disk to rotate, thereby causing the transmission screws of N transmission units to move in a linear motion, so as to control the mating part of the second housing to be tightly fitted or staggered with the first housing to create a gap. The end wall with a through hole at the center of the first housing and the connecting plate with a number of one-to-one corresponding heat dissipation holes evenly distributed around the circumference to connect the inside of the first housing with the outside. The gear disk is provided with several ventilation holes evenly distributed around its circumference; The heat dissipation module includes a cooling fan and P connecting rods; The P connecting rods are evenly arranged circumferentially between the shaft of the cooling fan and the mounting part of the second housing. One end of each rod is fixedly connected to the inner wall of the mounting part of the second housing, and the other end is fixedly connected to the shaft of the cooling fan.

[0006] As a further optimization of the non-pneumatic electric wheel based on a hub motor of the present invention, it also includes a first temperature sensor, a second temperature sensor and a control module; The first temperature sensor is disposed on the inner wall of the tire tread and is used to sense the temperature of the tire tread. The second temperature sensor is mounted on the stator of the hub motor to sense the temperature of the hub motor stator; The control module is connected to the first temperature sensor, the second temperature sensor, the housing motor, and the cooling fan, respectively, and is used to control the operation of the housing motor and the cooling fan based on the temperature sensed by the first temperature sensor and the second temperature sensor.

[0007] The present invention also discloses a temperature control method for a non-pneumatic electric wheel based on a hub motor, comprising the following steps: Step 1), the control module receives the sensed temperature T from the first temperature sensor. t The sensing temperature T of the second temperature sensor e ; Step 2), the control module will T t The values ​​are compared with the preset minimum tread temperature thresholds T1 and T2, respectively, and T is set accordingly. e Compare with the preset maximum temperature threshold T3 for the hub motor; Step 2.1), when T t <T1 and T e When the temperature is <T3, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are misaligned to create a gap, forming a heat exchange channel, and using the heat from the hub motor to heat the tire tread. Step 2.2), when T t ∈[T1,T2] and T e When <T3, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are in a sealed fit; Step 2.3), when T t ∈[T1,T2] and T e When T3 is ≥, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are sealed together, and at the same time controls the cooling fan to work to cool the hub motor. Step 2.4), when T t >T2 and T e When the temperature is <T3, the control module controls the housing motor to work, causing the mating part of the second housing to be misaligned with the first housing to create a gap, forming a heat exchange channel. At the same time, it controls the cooling fan to work to cool the tire tread. Step 2.5), when T t >T2 and T e When the temperature reaches ≥T3, the control module controls the housing motor to operate, causing the mating part of the second housing to be misaligned with the first housing to create a gap, forming a heat exchange channel. At the same time, it controls the cooling fan to operate, cooling the tire tread and wheel hub motor.

[0008] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: 1. Tire temperature can be controlled without adding any additional devices to the vehicle body; 2. The heat generated by the hub motor itself can be used to heat the tires; 3. The heat dissipation structure can be adjusted according to the temperature changes of the hub motor and tires, which not only ensures that the temperature of both is controlled within a reasonable range, but also reduces energy loss. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is an exploded view of the transmission unit in this invention; Figure 5 This is a schematic diagram of the airflow direction when the opening and closing module of the present invention is open and the cooling fan is working; Figure 6 This is a schematic diagram of the airflow direction when the opening and closing module of the present invention is closed and the cooling fan is working.

[0010] In the diagram, 1-hub, 2-spoke, 3-rim, 4-tread, 5-main shaft, 6-fixed cylinder, 7-fixed connector, 8-first bearing, 9-second bearing, 10-third bearing, 11-connecting disc, 12-first housing, 13-second housing, 14-stator of hub motor, 15-rotor of hub motor, 16-gear disc, 17-fourth bearing, 18-stator of housing motor, 19-rotor of housing motor, 20-connecting cylinder, 21-transmission unit, 22-cooling fan, 23-connecting rod, 24-fixed rod, 25-transmission cylinder, 26-transmission bearing, 27-transmission screw, 28-gear ring. Detailed Implementation

[0011] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings: This invention can be implemented in many different forms and should not be considered limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully express the scope of the invention to those skilled in the art. In the drawings, components are enlarged for clarity.

[0012] It should be understood that although the terms first, second, third, etc., may be used herein to describe various elements, components, and / or parts, these elements, components, and / or parts are not limited by these terms. These terms are merely used to distinguish elements, components, and / or parts from one another. Therefore, the first element, component, and / or part discussed below may be a second element, component, or part without departing from the teachings of this invention.

[0013] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention discloses a non-pneumatic electric wheel based on a hub motor, including a hub, several spokes, a rim, a tread, a main shaft, a fixed cylinder, a fastener, first to third bearings, a connecting plate, a first housing, a second housing, a hub motor, an opening and closing module, and a heat dissipation module; The hub includes a side wall and an end wall. The side wall is a hollow cylinder with open ends, and the end wall is annular. The inner wall of the end wall and one end of the side wall are coaxially and sealed together. The plurality of spokes are circumferentially and evenly arranged between the hub and the rim, with one end fixed to the outer wall of the hub sidewall and the other end fixed to the inner wall of the rim sidewall, so that the hub is concentrically arranged within the rim. The tread is provided on the outer surface of the rim; The fixed cylinder and the connecting plate are both disposed inside the hub. The fixed cylinder is a hollow cylinder with one end open. The connecting plate is annular and fits around the fixed cylinder. It is coaxially connected to the fixed cylinder through a third bearing. The outer ring of the third bearing is coaxially fixed to the inner wall of the connecting plate, and the inner ring is coaxially fixed to the outer wall of the fixed cylinder. The connecting disc and the hub are provided with M circumferentially evenly arranged fixing holes on their end walls, and are fixed together by M bolts to make the connecting disc and the hub coaxial. M is a natural number greater than or equal to 3. One end of the main shaft extends into the fixed cylinder, and the other end is connected to the vehicle frame; the first and second bearings are respectively located at both ends of the fixed cylinder, with their outer rings coaxially fixed to the inner wall of the fixed cylinder and their inner rings coaxially fixed to the main shaft; One end of the fastener is fixedly connected to the fixed cylinder, and the other end is fixedly connected to the vehicle frame; The first housing is a hollow cylinder with an opening at one end and a through hole at the center of the other end. It is fitted outside the fixed cylinder, and the end wall with the through hole is coaxially fixed to the connecting plate. The hub motor is a hollow motor, with its stator sleeved outside the fixed cylinder and coaxially fixed to the outer wall of the fixed cylinder. The rotor is coaxially fixed to the end wall of the first housing with a through hole. The second housing includes a mating part, a connecting part, and a mounting part. The mating part and the mounting part are both hollow cylinders with openings at both ends. The connecting part is annular, with its outer wall coaxially and sealed to one end of the mating part, and its inner wall coaxially and sealed to one end of the mounting part. The outer diameter of the mating part is equal to the inner diameter of the first housing, and the inner diameter of the mounting part is larger than the outer diameter of the fixed cylinder. The opening and closing module includes a gear disk, a fourth bearing, a housing motor, a connecting cylinder, and N transmission units, where N is a natural number greater than or equal to 3; like Figure 4 As shown, the transmission unit includes a fixed rod, a transmission cylinder, a transmission bearing, a transmission screw, and a gear ring; The transmission cylinder is a cylinder with a threaded blind hole at one end for engaging with the transmission screw, and a mounting blind hole at the other end. One end of the fixing rod extends into the mounting blind hole and is coaxially connected to the transmission cylinder through a transmission bearing; the transmission bearing is set in the mounting blind hole, with its inner ring coaxially fixed to the fixing rod and its outer ring coaxially fixed to the transmission cylinder; One end of the transmission screw is inserted into the threaded blind hole of the transmission cylinder and is threadedly connected to the transmission cylinder; The gear ring is sleeved outside the transmission cylinder and is coaxially and fixedly connected to the transmission cylinder. The N transmission units are circumferentially evenly arranged between the first housing and the rotor of the hub motor. The fixing rods are all parallel to the axis of the first housing. The end of the fixing rod away from its transmission cylinder is fixedly connected to the end wall of the first housing. The end of the transmission screw located outside the mounting blind hole is fixedly connected to the end of the mating part of the second housing away from the connecting part, so that the second housing and the first housing are coaxial. The gear disk has a through hole in the center and is coaxially connected to the fourth bearing; the outer ring of the fourth bearing and the gear disk are coaxially fixed at the through hole in the center, and the inner ring is coaxially fixed to the fixed cylinder; the gear disk meshes with the gear rings of N transmission units; The housing motor is a hollow motor, with the stator sleeved outside the fixed cylinder and coaxially fixed to the outer wall of the fixed cylinder. The connecting cylinder is a hollow cylinder with openings at both ends. It is fitted outside the fixed cylinder. One end is coaxially fixed to the rotor of the motor in the housing, and the other end is coaxially fixed to the gear disk. The housing motor is used to drive the gear disk to rotate, thereby causing the transmission screws of N transmission units to move in a linear motion, so as to control the mating part of the second housing to be tightly fitted or staggered with the first housing to create a gap. The end wall with a through hole at the center of the first housing and the connecting plate with a number of one-to-one corresponding heat dissipation holes evenly distributed around the circumference to connect the inside of the first housing with the outside. The gear disk is provided with several ventilation holes evenly distributed around its circumference; The heat dissipation module includes a cooling fan and P connecting rods; The P connecting rods are evenly arranged circumferentially between the shaft of the cooling fan and the mounting part of the second housing. One end of each rod is fixedly connected to the inner wall of the mounting part of the second housing, and the other end is fixedly connected to the shaft of the cooling fan.

[0014] As a further optimization of the non-pneumatic electric wheel based on a hub motor of the present invention, it also includes a first temperature sensor, a second temperature sensor and a control module; The first temperature sensor is disposed on the inner wall of the tire tread and is used to sense the temperature of the tire tread. The second temperature sensor is mounted on the stator of the hub motor to sense the temperature of the hub motor stator; The control module is connected to the first temperature sensor, the second temperature sensor, the housing motor, and the cooling fan, respectively, and is used to control the operation of the housing motor and the cooling fan based on the temperature sensed by the first temperature sensor and the second temperature sensor.

[0015] The present invention also discloses a temperature control method for a non-pneumatic electric wheel based on a hub motor, comprising the following steps: Step 1), the control module receives the sensed temperature T from the first temperature sensor. t The sensing temperature T of the second temperature sensor e ; Step 2), the control module will T t The values ​​are compared with the preset minimum tread temperature thresholds T1 and T2, respectively, and T is set accordingly. e Compare with the preset maximum temperature threshold T3 for the hub motor; Step 2.1), when T t <T1 and T e When the temperature is <T3, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are misaligned to create a gap, forming a heat exchange channel, and using the heat from the hub motor to heat the tire tread. Step 2.2), when T t ∈[T1,T2] and T e When <T3, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are in a sealed fit; Step 2.3), when T t ∈[T1,T2] and T e When T3 is ≥, the control module controls the housing motor to operate, ensuring a tight fit between the mating parts of the second housing and the first housing. Simultaneously, it controls the cooling fan to operate, cooling the hub motor. Figure 6 As shown; Step 2.4), when T t >T2 and T e When the temperature is <T3, the control module controls the housing motor to work, causing the mating part of the second housing to be misaligned with the first housing to create a gap, forming a heat exchange channel. At the same time, it controls the cooling fan to work to cool the tire tread. Step 2.5), when T t >T2 and T eWhen T3 is ≥, the control module controls the housing motor to operate, causing the mating part of the second housing to be misaligned with the first housing, creating a gap and forming a heat exchange channel. Simultaneously, it controls the cooling fan to operate, cooling the tire tread and wheel hub motor. Figure 5 As shown.

[0016] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0017] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A non-pneumatic electric wheel based on a hub motor, characterized in that, It includes a hub, several spokes, a rim, a tread, a main shaft, a fixed cylinder, fasteners, first to third bearings, a connecting plate, a first housing, a second housing, a hub motor, an opening and closing module, and a heat dissipation module; The hub includes a side wall and an end wall. The side wall is a hollow cylinder with open ends, and the end wall is annular. The inner wall of the end wall and one end of the side wall are coaxially and sealed together. The plurality of spokes are circumferentially and evenly arranged between the hub and the rim, with one end fixed to the outer wall of the hub sidewall and the other end fixed to the inner wall of the rim sidewall, so that the hub is concentrically arranged within the rim. The tread is provided on the outer surface of the rim; The fixed cylinder and the connecting plate are both disposed inside the hub. The fixed cylinder is a hollow cylinder with one end open. The connecting plate is annular and fits around the fixed cylinder. It is coaxially connected to the fixed cylinder through a third bearing. The outer ring of the third bearing is coaxially fixed to the inner wall of the connecting plate, and the inner ring is coaxially fixed to the outer wall of the fixed cylinder. The connecting disc and the hub are provided with M circumferentially evenly arranged fixing holes on their end walls, and are fixed together by M bolts to make the connecting disc and the hub coaxial. M is a natural number greater than or equal to 3. One end of the main shaft extends into the fixed cylinder, and the other end is connected to the vehicle frame; the first and second bearings are respectively located at both ends of the fixed cylinder, with their outer rings coaxially fixed to the inner wall of the fixed cylinder and their inner rings coaxially fixed to the main shaft; One end of the fastener is fixedly connected to the fixed cylinder, and the other end is fixedly connected to the vehicle frame; The first housing is a hollow cylinder with an opening at one end and a through hole at the center of the other end. It is fitted outside the fixed cylinder, and the end wall with the through hole is coaxially fixed to the connecting plate. The hub motor is a hollow motor, with its stator sleeved outside the fixed cylinder and coaxially fixed to the outer wall of the fixed cylinder. The rotor is coaxially fixed to the end wall of the first housing with a through hole. The second housing includes a mating part, a connecting part, and a mounting part. The mating part and the mounting part are both hollow cylinders with openings at both ends. The connecting part is annular, with its outer wall coaxially and sealed to one end of the mating part, and its inner wall coaxially and sealed to one end of the mounting part. The outer diameter of the mating part is equal to the inner diameter of the first housing, and the inner diameter of the mounting part is larger than the outer diameter of the fixed cylinder. The opening and closing module includes a gear disk, a fourth bearing, a housing motor, a connecting cylinder, and N transmission units, where N is a natural number greater than or equal to 3; The transmission unit includes a fixed rod, a transmission cylinder, a transmission bearing, a transmission screw, and a gear ring; The transmission cylinder is a cylinder with a threaded blind hole at one end for engaging with the transmission screw, and a mounting blind hole at the other end. One end of the fixing rod extends into the mounting blind hole and is coaxially connected to the transmission cylinder through a transmission bearing; the transmission bearing is set in the mounting blind hole, with its inner ring coaxially fixed to the fixing rod and its outer ring coaxially fixed to the transmission cylinder; One end of the transmission screw is inserted into the threaded blind hole of the transmission cylinder and is threadedly connected to the transmission cylinder; The gear ring is sleeved outside the transmission cylinder and is coaxially and fixedly connected to the transmission cylinder. The N transmission units are circumferentially evenly arranged between the first housing and the rotor of the hub motor. The fixing rods are all parallel to the axis of the first housing. The end of the fixing rod away from its transmission cylinder is fixedly connected to the end wall of the first housing. The end of the transmission screw located outside the mounting blind hole is fixedly connected to the end of the mating part of the second housing away from the connecting part, so that the second housing and the first housing are coaxial. The gear disk has a through hole in the center and is coaxially connected to the fourth bearing; the outer ring of the fourth bearing and the gear disk are coaxially fixed at the through hole in the center, and the inner ring is coaxially fixed to the fixed cylinder; the gear disk meshes with the gear rings of N transmission units; The housing motor is a hollow motor, with the stator sleeved outside the fixed cylinder and coaxially fixed to the outer wall of the fixed cylinder. The connecting cylinder is a hollow cylinder with openings at both ends. It is fitted outside the fixed cylinder. One end is coaxially fixed to the rotor of the motor in the housing, and the other end is coaxially fixed to the gear disk. The housing motor is used to drive the gear disk to rotate, thereby causing the transmission screws of N transmission units to move in a linear motion, so as to control the mating part of the second housing to be tightly fitted or staggered with the first housing to create a gap. The end wall with a through hole at the center of the first housing and the connecting plate with a number of one-to-one corresponding heat dissipation holes evenly distributed around the circumference to connect the inside of the first housing with the outside. The gear disk is provided with several ventilation holes evenly distributed around its circumference; The heat dissipation module includes a cooling fan and P connecting rods; The P connecting rods are evenly arranged circumferentially between the shaft of the cooling fan and the mounting part of the second housing. One end of each rod is fixedly connected to the inner wall of the mounting part of the second housing, and the other end is fixedly connected to the shaft of the cooling fan.

2. The non-pneumatic electric wheel based on a hub motor according to claim 1, characterized in that, It includes a first temperature sensor, a second temperature sensor, and a control module; The first temperature sensor is disposed on the inner wall of the tire tread and is used to sense the temperature of the tire tread. The second temperature sensor is mounted on the stator of the hub motor to sense the temperature of the hub motor stator; The control module is connected to the first temperature sensor, the second temperature sensor, the housing motor, and the cooling fan respectively, and is used to control the operation of the housing motor and the cooling fan according to the temperature sensed by the first temperature sensor and the second temperature sensor.

3. The temperature control method for a non-pneumatic electric wheel based on a hub motor as described in claim 2, characterized in that, Includes the following steps: Step 1), the control module receives the sensed temperature T from the first temperature sensor. t The sensing temperature T of the second temperature sensor e ; Step 2), the control module will T t The values ​​are compared with the preset minimum tread temperature thresholds T1 and T2, respectively, and T is set accordingly. e Compare with the preset maximum temperature threshold T3 for the hub motor; Step 2.1), when T t <T1 and T e When the temperature is <T3, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are misaligned to create a gap, forming a heat exchange channel, and using the heat from the hub motor to heat the tire tread. Step 2.2), when T t ∈[T1,T2] and T e When <T3, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are in a sealed fit; Step 2.3), when T t ∈[T1,T2] and T e When T3 is ≥, the control module controls the housing motor to work, so that the mating part of the second housing and the first housing are sealed together, and at the same time controls the cooling fan to work to cool the hub motor. Step 2.4), when T t >T2 and T e When the temperature is <T3, the control module controls the housing motor to work, causing the mating part of the second housing to be misaligned with the first housing to create a gap, forming a heat exchange channel. At the same time, it controls the cooling fan to work to cool the tire tread. Step 2.5), when T t >T2 and T e When the temperature reaches ≥T3, the control module controls the housing motor to operate, causing the mating part of the second housing to be misaligned with the first housing to create a gap, forming a heat exchange channel. At the same time, it controls the cooling fan to operate, cooling the tire tread and wheel hub motor.

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