Hub motor and vehicle

Abstract

The utility model provides a hub motor and a vehicle. The hub motor comprises a hub, a mounting shaft, a motor module and a brake module. The hub is provided with a containing cavity. And the mounting shaft is rotationally connected with the hub. The motor module is located in the containing cavity and used for driving the hub to rotate relative to the mounting shaft. The braking module is located in the containing cavity, the braking module is installed on the installation shaft, and the braking module is used for braking the motor module. According to the hub motor, the motor module is braked through the braking module, so that the problem that the vehicle is easy to slip during parking is effectively avoided, and the working stability and the use safety of the vehicle are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a hub motor and a vehicle. Background Art

[0002] In the related art, when the wheel hub motor brakes the wheel hub, the braking is achieved by pairing the magnetic poles of the stator and the rotor in the motor module. However, the braking stability and effect of the wheel hub braking by the motor module are poor, and the braking cannot be performed for a long time, which makes the vehicle equipped with the wheel hub motor prone to slipping when parking. Utility Model Content

[0003] The present application provides a wheel hub motor and a vehicle to solve the problem that a vehicle equipped with a wheel hub motor is prone to slipping when parking.

[0004] In a first aspect, the present application provides a wheel hub motor, which includes a wheel hub, a mounting shaft, a motor module, and a brake module. The wheel hub has a receiving cavity. The mounting shaft is rotatably connected to the wheel hub. The motor module is located in the receiving cavity and is used to drive the wheel hub to rotate relative to the mounting shaft. The brake module is located in the receiving cavity, the brake module is mounted on the mounting shaft, and the brake module is used to brake the motor module.

[0005] In some embodiments, the wheel hub motor further includes a reduction module disposed in the accommodating cavity, the reduction module is located between the brake module and the motor module, and the motor module is transmission-connected to the wheel hub via the reduction module.

[0006] In some embodiments, the hub motor further includes a partition, and the partition is disposed between the deceleration module and the brake module.

[0007] In some embodiments, the wheel hub is provided with a mounting portion for mounting a tire, the mounting portion has a first side portion and a second side portion disposed opposite to each other along the central axis direction of the mounting shaft, and the deceleration module is located between the first side portion and the second side portion.

[0008] In some embodiments, the reduction module includes a planetary gear and a fixed bracket, the fixed bracket is fixedly arranged relative to the mounting shaft, the motor module is fixedly connected to the fixed bracket, the planetary gear is installed on the fixed bracket, the motor module is provided with a sun gear meshing with the planetary gear, the wheel hub is provided with a ring gear meshing with the planetary gear, and the sun gear is used to drive the ring gear together with the wheel hub to rotate through the planetary gear.

[0009] In some embodiments, the wheel hub includes a first cover body and a second cover body fixedly connected to the first cover body, the first cover body and the second cover body enclose the accommodating cavity, the mounting shaft is rotatably connected to the first cover body, the ring gear is arranged on the inner wall of the first cover body close to the end of the second cover body, or the ring gear is arranged on the inner wall of the second cover body close to the end of the first cover body.

[0010] In some embodiments, a mounting portion for mounting a tire is disposed on the wheel hub, the mounting portion having a first side portion and a second side portion disposed opposite to each other along the central axis direction of the mounting shaft, and the brake module is located between the first side portion and the second side portion.

[0011] In some embodiments, the brake module includes a first brake member and a second brake member, the first brake member is connected to the mounting shaft, the second brake member is fixedly connected to the motor module, and the first brake member is used to brake the second brake member.

[0012] In some embodiments, the motor module includes a stator, a rotor and a motor shaft, the stator is fixedly arranged relative to the mounting shaft, the rotor is fixedly connected to the motor shaft, the stator is used to drive the rotor and the motor shaft to rotate relative to the mounting shaft, and the motor shaft is used to drive the wheel hub to rotate relative to the mounting shaft.

[0013] In a second aspect, the present application provides a vehicle, comprising a chassis, a tire and a hub motor as described in any one of the above items, wherein the mounting shaft is mounted on the chassis, and the tire is mounted on the wheel hub.

[0014] In the wheel hub motor and vehicle provided by the present application, the motor module is used to drive the wheel hub to rotate relative to the mounting shaft, and a brake module is arranged in the receiving cavity of the wheel hub. The brake module brakes the motor module, which effectively avoids the problem of the vehicle slipping when parking, and improves the working stability and use safety of the vehicle. In addition, the brake module is arranged in the receiving cavity, which can also prevent the impurities outside the wheel hub motor from affecting the normal operation of the brake module, improve the working reliability and service life of the brake module, and improve the integration of the wheel hub motor, so that the structure of the wheel hub motor is more compact, which is conducive to the miniaturization design of the wheel hub motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a cross-sectional view of the hub motor provided in an embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the structure of the hub motor provided in an embodiment of the present application after some structures are removed.

[0018] Figure 3 It is a structural schematic diagram of the deceleration module provided in an embodiment of the present application.

[0019] Description of main reference numerals: wheel hub motor 100; wheel hub 110; receiving cavity 1101; first cover 111; cover bearing 1111; second cover 112; mounting portion 113; first side portion 1131; second side portion 1132; mounting shaft 120; first wire hole 1201; second wire hole 1202; motor module 130; stator 131; rotor 132; motor shaft 133; brake module 140; electromagnetic base 141; first container Slot 1411; second accommodating slot 1412; wire outlet hole 1413; first brake member 144; second brake member 145; limit member 146; reduction module 150; fixed bracket 151; wire passage 1511; wire passage hole 1512; bracket bearing 1513; planetary gear 152; sun gear 153; ring gear 154; partition 161; end plate 170; end plate bearing 171; first wire passage slot 1721; second wire passage slot 1722.

[0020] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments in the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] It should be noted that the terms in the specification and claims of this application and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit this application. The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order.

[0024] See also Figure 1 , Figure 1 : is a cross-sectional view of the wheel hub motor 100 provided in an embodiment of the present application. A vehicle is provided in an embodiment of the present application, and the vehicle includes a chassis, a tire, and a wheel hub motor 100 as in any embodiment of the present invention. The wheel hub motor 100 is mounted on the chassis. The tire is mounted on the wheel hub motor 100. The wheel hub motor 100 is used to drive the tire to rotate relative to the chassis to drive the vehicle to move. Among them, the vehicle can be configured as a lawn mowing vehicle, a pesticide spraying vehicle, a crop harvesting vehicle, a sweeping vehicle, a transport vehicle, etc. The vehicle can be a two-wheeled walking vehicle, a four-wheeled walking vehicle, etc.

[0025] The wheel hub motor 100 includes a wheel hub 110, a mounting shaft 120, a motor module 130 and a brake module 140. The wheel hub 110 is used to mount a tire, and the tire is mounted on the outer wall of the wheel hub 110. The wheel hub 110 has a receiving cavity 1101. The mounting shaft 120 is rotatably connected to the wheel hub 110. The mounting shaft 120 is used to be connected to the chassis. The mounting shaft 120 can be fixedly connected to the chassis. The motor module 130 is located in the receiving cavity 1101 and is used to drive the wheel hub 110 to rotate relative to the mounting shaft 120. The brake module 140 is located in the receiving cavity 1101. The brake module 140 is mounted on the mounting shaft 120. The brake module 140 is used to brake the motor module 130 so that the wheel hub 110 is stationary relative to the mounting shaft 120.

[0026] In the related art, when the wheel hub motor brakes the wheel hub, the braking is achieved by pairing the magnetic poles of the stator and the rotor in the motor module. However, the braking stability and the braking effect of the wheel hub by the motor module are poor, and the braking cannot be performed for a long time, which causes the vehicle to easily slip, posing a threat to the safety of the vehicle and the safety of the user, and easily causing damage to the vehicle or injury to personnel, resulting in economic losses. In the embodiment of the present application, a brake module 140 is provided in the wheel hub motor 100, and the brake module 140 brakes the motor module 130, which effectively avoids the problem of the vehicle easily slipping when parking, and improves the working stability and safety of the vehicle. In addition, the brake module 140 is arranged in the receiving cavity 1101, which can also prevent the impurities outside the wheel hub motor 100 from affecting the normal operation of the brake module 140, improve the working reliability and service life of the brake module 140, and improve the integration of the wheel hub motor 100, so that the structure of the wheel hub motor 100 is more compact, which is conducive to the miniaturization design of the wheel hub motor 100.

[0027] Among them, the brake module 140 is used to brake the motor module 130 when receiving a brake signal. The brake signal can be configured as a power-off signal or a power-on signal. In some embodiments, the working mode of the brake module 140 can be configured as power-off braking. When the brake module 140 is powered on, the brake module 140 does not brake the motor module 130, and the motor module 130 can drive the wheel hub 110 to rotate relative to the mounting shaft 120. When the brake module 140 loses power, the brake module 140 uses the loss of power as receiving the brake signal, and the brake module 140 brakes the motor module 130. In some cases, when the wheel hub motor 100 loses power due to an abnormality (such as a battery failure or battery exhaustion on the vehicle), the brake module 140 can brake the motor module 130 in time, so that the wheel hub 110 is stationary relative to the mounting shaft 120, and the vehicle is automatically parked when the power is lost, which improves the stability and safety of the vehicle and improves the user experience. In addition, compared to the existing solution of braking the wheel hub 110 through the motor module 130, in the hub motor 100 of this embodiment, when the vehicle is parked on a slope, the braking of the motor module 130 by the brake module 140 can also make it unnecessary for the vehicle to maintain continuous power supply to the motor module 130, which can greatly reduce the power consumption of the hub motor 100 and make the hub motor 100 more energy-saving and environmentally friendly.

[0028] In some embodiments, the working mode of the brake module 140 can also be configured as power-on braking. When the brake module 140 is powered on, the brake module 140 receives the power supply as a braking signal, and the brake module 140 brakes the motor module 130. When the brake module 140 loses power, the brake module 140 does not brake the motor module 130.

[0029] The wheel hub 110 includes a first cover body 111 and a second cover body 112. The second cover body 112 is fixedly connected to the first cover body 111. The first cover body 111 and the second cover body 112 enclose a receiving cavity 1101. The first cover body 111 and the second cover body 112 are used to prevent external impurities from entering the receiving cavity 1101, so as to protect the components of the wheel hub motor 100 located in the receiving cavity 1101 to work normally for a long time and improve the service life of the wheel hub motor 100. The mounting shaft 120 is rotatably connected to the first cover body 111. A through hole is opened on the first cover body 111, and the end of the mounting shaft 120 is penetrated in the through hole. Among them, the wheel hub motor 100 also includes a cover bearing 1111. The cover bearing 1111 is installed in the through hole on the first cover body 111. The mounting shaft 120 is installed on the cover bearing 1111.

[0030] The motor module 130 includes a stator 131, a rotor 132 and a motor shaft 133. The stator 131 is fixedly arranged relative to the mounting shaft 120. The rotor 132 is fixedly connected to the motor shaft 133. For example, a coil winding may be arranged on the stator 131, and a magnet may be arranged on the rotor 132. The stator 131 is used to drive the rotor 132 and the motor shaft 133 to rotate relative to the mounting shaft 120 after power is turned on. The motor shaft 133 is used to drive the wheel hub 110 to rotate relative to the mounting shaft 120. Among them, the motor shaft 133 is coaxially arranged with the mounting shaft 120, and the central axis of the motor shaft 133 coincides with the central axis of the mounting shaft 120. The rotor 132 can be arranged independently of the motor shaft 133. The rotor 132 and the motor shaft 133 can be fixedly connected together by bonding, clamping, welding, screwing, etc. In some embodiments, the rotor 132 may be integrally formed with the motor shaft 133 to improve the integration of the motor module 130 .

[0031] The brake module 140 includes a first brake member 144 and a second brake member 145. The first brake member 144 is connected to the mounting shaft 120. The second brake member 145 is fixedly connected to the motor shaft 133 of the motor module 130. When the brake module 140 receives a brake signal, the first brake member 144 is used to brake the second brake member 145 so that the second brake member 145 is stationary relative to the mounting shaft 120.

[0032] The brake module 140 further includes an electromagnetic base 141, an electromagnetic coil (not shown) and an elastic member (not shown). The electromagnetic base 141 is provided with a first receiving groove 1411 and a second receiving groove 1412. The electromagnetic coil is accommodated in the first receiving groove 1411. The elastic member is accommodated in the second receiving groove 1412. The elastic member elastically abuts between the first brake member 144 and the electromagnetic base 141. The first brake member 144 is slidably arranged along the axial direction of the mounting shaft 120 relative to the electromagnetic base 141. The electromagnetic base 141 can limit the rotation of the first brake member 144 along the circumferential direction of the mounting shaft 120. For example, a limiting hole can be provided on the electromagnetic base 141, and a limiting column is arranged on the side of the first brake member 144 facing the electromagnetic base 141, and the limiting column is accommodated in the limiting hole. When the first braking member 144 moves relative to the electromagnetic base 141 along the axial direction of the mounting shaft 120 , the limiting column can limit and guide the movement of the first braking member 144 .

[0033] When the electromagnetic coil is energized, the magnetic field generated by the electromagnetic coil causes the electromagnetic base 141 to adsorb the first brake member 144. The first brake member 144 abuts against the electromagnetic base 141. The first brake member 144 compresses the elastic member. At this time, the first brake member 144 and the second brake member 145 are spaced apart, and the second brake member 145 is movable relative to the first brake member 144. When the electromagnetic coil is de-energized, the elastic member pushes the first brake member 144 to separate from the electromagnetic base 141, and causes the first brake member 144 to abut against the second brake member 145, so that the friction between the first brake member 144 and the second brake member 145 stops the second brake member 145 from rotating relative to the first brake member 144, thereby causing the motor shaft 133 to be stationary relative to the mounting shaft 120.

[0034] In some embodiments, the brake module 140 further includes a limiter 146. The limiter 146 is fixedly connected to the electromagnetic base 141. A limited space is formed between the limiter 146 and the electromagnetic base 141. The first brake member 144 and the second brake member 145 are both located in the limited space. The limiter 146 is located on a side of the second brake member 145 away from the first brake member 144, and is spaced apart from the second brake member 145. The limiter 146 is used to protect the second brake member 145.

[0035] In some embodiments, a coil is disposed on one of the first brake member 144 and the second brake member 145, and a magnet is disposed on the other. When the brake module 140 receives a brake signal, the coil is energized to generate a magnetic field, and the magnet is attracted, so that the second brake member 145 stops rotating relative to the first brake member 144.

[0036] The wheel hub motor 100 further includes a reduction module 150 disposed in the receiving cavity 1101. The motor module 130 is connected to the wheel hub 110 through the reduction module 150. The reduction module 150 is connected to the motor shaft 133 and the wheel hub 110 respectively. The reduction module 150 is used to apply the output force of the motor shaft 133 to the wheel hub 110 and drive the wheel hub 110 to rotate relative to the mounting shaft 120. The reduction module 150 is used to reduce the speed output to the wheel hub 110 and increase the torque output from the motor shaft 133 to the wheel hub 110.

[0037] The reduction module 150 is located between the brake module 140 and the motor module 130. In this way, the distance between the reduction module 150 and the mounting shaft 120 along the axial direction of the mounting shaft 120 can be reduced, thereby reducing the vibration of the reduction module 150 during operation, improving the stability of the reduction module 150 during operation, making the force between the reduction module 150 and the wheel hub 110 more uniform, reducing the noise of the wheel hub motor 100 during operation, and improving the service life of the wheel hub motor 100.

[0038] The wheel hub 110 is provided with a mounting portion 113 for mounting a tire. The ends of the first cover 111 and the second cover 112 are respectively extended along the axial direction of the mounting shaft 120 and fixedly connected together to form the mounting portion 113. The mounting portion 113 has a first side portion 1131 and a second side portion 1132 disposed opposite to each other along the central axis direction of the mounting shaft 120. The reduction module 150 is located between the first side portion 1131 and the second side portion 1132. In this way, on a plane parallel to the central axis of the mounting shaft 120, the projection of the contact position between the reduction module 150 and the wheel hub 110 is located within the projection range of the tire. The reduction module 150 applies force to the wheel hub 110 evenly, and the force position is reasonable, which improves the force balance of the wheel hub 110, is conducive to reducing the vibration of the reduction module 150 during operation, reducing the noise of the hub motor 100 during operation, and improving the service life of the hub motor 100. In some embodiments, the reduction module 150 can be disposed at the midpoint of the line between the first side portion 1131 and the second side portion 1132 , or close to the midpoint of the line between the first side portion 1131 and the second side portion 1132 , so as to improve the force balance of the wheel hub 110 .

[0039] The brake module 140 is located between the first side portion 1131 and the second side portion 1132. In this way, on a plane parallel to the central axis of the mounting shaft 120, the projection of the brake position of the brake module 140 and the motor module 130 is located within the projection range of the tire. When the brake module 140 brakes the motor module 130, the overall force of the hub motor 100 is uniform and well balanced, which can reduce or eliminate the vibration problem of the hub motor 100 when the brake module 140 is braking, and improve the service life of the hub motor 100. Among them, the first side portion 1131 can be located on the side of the mounting portion 113 close to the mounting shaft 120. In some embodiments, the first side portion 1131 can also be located on the side of the mounting portion 113 away from the mounting shaft 120.

[0040] Please also read Figure 1 , Figure 2 and Figure 3 The reduction module 150 includes a fixed bracket 151, a planetary gear 152 and a sun gear 153. The fixed bracket 151 is fixedly arranged relative to the mounting shaft 120. The stator 131 of the motor module 130 is fixedly connected to the fixed bracket 151. The planetary gear 152 is mounted on the fixed bracket 151. The sun gear 153 is arranged on the motor shaft 133 of the motor module 130. The sun gear 153 is used to mesh with the planetary gear 152. A ring gear 154 meshing with the planetary gear 152 is arranged on the inner wall of the hub 110. The sun gear 153 is used to drive the ring gear 154 to rotate together with the hub 110 through the planetary gear 152. The planetary gear 152 is arranged in plurality, and the plurality of planetary gears 152 are arranged around the sun gear 153. Exemplarily, the planetary gear 152 can be arranged in three.

[0041] In this embodiment, the sun gear 153 is integrally formed with the motor shaft 133 to improve the integration of the hub motor 100 and make the hub motor 100 compact. In some embodiments, the sun gear 153 and the motor shaft 133 can be independently provided. The sun gear 153 is constructed as an independent element. The sun gear 153 can be sleeved on the motor shaft 133 and fixedly connected to the motor shaft 133.

[0042] The gear ring 154 is disposed on the inner wall of the first cover 111 and / or the inner wall of the second cover 112. The gear ring 154 can be disposed on the inner wall of the first cover 111 near the end of the second cover 112 to facilitate the processing of the gear ring 154 and reduce the processing difficulty of the gear ring 154. In some embodiments, the gear ring 154 can also be disposed on the inner wall of the second cover 112 near the end of the first cover 111 to reduce the processing difficulty of the gear ring 154.

[0043] In this embodiment, the gear ring 154 is integrally formed with the wheel hub 110 to improve the integration of the wheel hub motor 100 and make the wheel hub motor 100 compact. In some embodiments, the gear ring 154 and the wheel hub 110 can be independently provided. The gear ring 154 is constructed as an independent element. The gear ring 154 is fixedly connected to the wheel hub 110.

[0044] The hub motor 100 also includes an end plate 170, an end plate bearing 171 and a bracket bearing 1513. The end plate 170 is located in the receiving cavity 1101 and is fixedly connected to the mounting shaft 120. The end plate bearing 171 is arranged on the end plate 170. The brake module 140 is fixedly arranged on the end plate 170, and the brake module 140 is located between the end plate 170 and the motor module 130. A connecting hole is arranged on the brake module 140. The end of the motor shaft 133 passes through the connecting hole and is connected to the end plate bearing 171. In some embodiments, the electromagnetic base 141 can be integrally formed with the end plate 170 to improve the integration of the hub motor 100.

[0045] The fixed bracket 151 is fixedly connected to the end plate 170. A connecting hole is provided on the fixed bracket 151, and the motor shaft 133 is inserted into the connecting hole. Among them, the bracket bearing 1513 is installed in the connecting hole. The motor shaft 133 is inserted into the bracket bearing 1513. The bracket bearing 1513 can be set to multiple to improve the coaxiality of the motor shaft 133 and the installation shaft 120 and the stability during rotation. Multiple bracket bearings 1513 are arranged along the axial direction of the motor shaft 133. The motor shaft 133 is inserted into multiple bracket bearings 1513.

[0046] In the embodiment of the present application, the reduction module 150 is arranged between the brake module 140 and the motor module 130, which is also beneficial to reducing the length of the portion of the motor shaft 133 located between the end plate bearing 171 and the bracket bearing 1513, thereby reducing the vibration of the motor shaft 133 at the position of the sun gear 153 when the motor shaft 133 rotates, thereby improving the stability of the rotation of the sun gear 153, the planetary gears 152 and the ring gear 154, improving the working life of the reduction module 150 and reducing the working noise.

[0047] Please also read Figure 1 and Figure 2, a wiring harness channel is provided in the hub motor 100, and the wiring harness channel is used to accommodate a wire group (not shown in the figure), and the wire group is used to electrically connect the motor module 130 with a power supply so that the power supply supplies power to the motor module 130. Specifically, a wire passage channel 1511 is provided on the fixed bracket 151. The wire passage channel 1511 is opened in a direction parallel to the axial direction of the mounting shaft 120. A first wire passage groove 1721 and a second wire passage groove 1722 are opened on the end plate 170. The first wire passage groove 1721 is opened in a direction parallel to the axial direction of the mounting shaft 120. The first wire passage groove 1721 is connected to the wire passage channel 1511. The second wire passage groove 1722 is opened in a direction parallel to the radial direction of the mounting shaft 120. The second wire passage groove 1722 is connected to the first wire passage groove 1721. A first wire hole 1201 and a second wire hole 1202 are opened on the mounting shaft 120. The first wire hole 1201 is opened along the radial direction of the mounting shaft 120 and is connected to the second wire groove 1722. The second wire hole 1202 is opened along the axial direction of the mounting shaft 120 and is connected to the first wire hole 1201. The wire passage 1511, the first wire groove 1721, the second wire groove 1722, the first wire hole 1201 and the second wire hole 1202 are connected to form a wiring harness channel. Among them, a wire hole 1512 is also opened on the fixed bracket 151. A wire outlet hole 1413 connected to the wire hole 1512 is opened on the electromagnetic base 141. The wire group is also used to electrically connect the brake module 140 to the power supply so that the power supply supplies power to the brake module 140. The wire hole 1512 can be opened on the side wall of the wire channel 1511 so that the wire group connected to the motor module 130 and the wire group connected to the brake module 140 can be accommodated in the wiring harness channel together, thereby improving the integration of the wire group and avoiding entanglement between the wire group and other components of the hub motor 100.

[0048] The hub motor 100 further includes a partition 161. The partition 161 is disposed between the reduction module 150 and the brake module 140. The partition 161 is used to separate the brake module 140 from the reduction module 150, to prevent the debris, dust, etc. generated by the reduction module 150 from falling on the reduction module 150, to avoid affecting the normal operation of the reduction module 150, to extend the service life of the reduction module 150, and to prevent the lubricating oil, grease, etc. in the reduction module 150 from falling on the brake module 140, to avoid reducing the braking effect of the brake module 140, to extend the service life of the brake module 140. Among them, the partition 161 can be fixedly connected to the fixed bracket 151. The partition 161 and the fixed bracket 151 can be fixedly connected together by bonding, clamping, welding, screwing, fastener connection, etc. In some embodiments, the stopper 146 can be integrally formed with the partition 161. In some embodiments, the stopper 146 can be configured as a partition 161.

[0049] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A hub motor, characterized in that: include: A wheel hub, wherein the wheel hub has a receiving cavity; An installation shaft is rotatably connected to the wheel hub; A motor module, the motor module is located in the receiving cavity and is used to drive the wheel hub to rotate relative to the mounting shaft; A brake module is located in the receiving cavity, the brake module is installed on the installation shaft, and the brake module is used to brake the motor module.

2. The wheel hub motor according to claim 1, characterized in that: The wheel hub motor also includes a reduction module disposed in the accommodating cavity, the reduction module is located between the brake module and the motor module, and the motor module is transmission-connected to the wheel hub via the reduction module.

3. The wheel hub motor according to claim 2, characterized in that: The hub motor further includes a partition plate, which is arranged between the deceleration module and the brake module.

4. The wheel hub motor according to claim 2, characterized in that: The wheel hub is provided with a mounting portion for mounting a tire, the mounting portion having a first side portion and a second side portion disposed opposite to each other along the central axis direction of the mounting shaft, and the speed reduction module is located between the first side portion and the second side portion.

5. The wheel hub motor according to claim 2, characterized in that: The reduction module includes a planetary gear and a fixed bracket, the fixed bracket is fixedly arranged relative to the mounting shaft, the motor module is fixedly connected to the fixed bracket, the planetary gear is mounted on the fixed bracket, the motor module is provided with a sun gear meshing with the planetary gear, the wheel hub is provided with a ring gear meshing with the planetary gear, and the sun gear is used to drive the ring gear together with the wheel hub to rotate through the planetary gear.

6. The wheel hub motor according to claim 5, characterized in that: The wheel hub includes a first cover body and a second cover body fixedly connected to the first cover body, the first cover body and the second cover body enclose the accommodating cavity, the mounting shaft is rotatably connected to the first cover body, the ring gear is arranged on the inner wall of the first cover body close to the end of the second cover body, or the ring gear is arranged on the inner wall of the second cover body close to the end of the first cover body.

7. The wheel hub motor according to claim 1, characterized in that: The wheel hub is provided with a mounting portion for mounting a tire, the mounting portion has a first side portion and a second side portion which are arranged opposite to each other along the central axis direction of the mounting shaft, and the brake module is located between the first side portion and the second side portion.

8. The wheel hub motor according to claim 1, characterized in that: The brake module comprises a first brake member and a second brake member, wherein the first brake member is connected to the mounting shaft, and the second brake member is fixedly connected to the motor module, and the first brake member is used to brake the second brake member.

9. The wheel hub motor according to any one of claims 1 to 8, characterized in that: The motor module includes a stator, a rotor and a motor shaft. The stator is fixedly arranged relative to the mounting shaft, and the rotor is fixedly connected to the motor shaft. The stator is used to drive the rotor and the motor shaft to rotate relative to the mounting shaft, and the motor shaft is used to drive the wheel hub to rotate relative to the mounting shaft.

10. A vehicle, characterized in that: The vehicle comprises a chassis, a tire and a hub motor as described in any one of claims 1 to 9, the mounting shaft is mounted on the chassis, and the tire is sleeved on the wheel hub.

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