A wheel hub motor

Abstract

The present invention discloses a hub motor, comprising: a hub motor body, the hub motor body comprising a rotor housing, a rotor end cover, and a stator assembly, the stator assembly is arranged in the rotor housing, the rotor end cover is arranged on one side of the rotor housing, and the rotor end cover has a stator through hole, the outer end of the stator assembly partially passes through the stator through hole, and an O-type sealing ring is arranged on the outer end, and the O-type sealing ring is located in the stator through hole. The present invention provides a hub motor, and an O-type sealing ring is also provided on the outer end, and the O-type sealing ring is located on the inner side of the stator through hole, so that the O-type sealing ring seals the stator through hole and the stator assembly, so after the hub motor body is started, the rotor housing on the stator assembly is then rotated, so that the device can be driven to move, and the sealing design of the O-type sealing ring effectively improves the waterproof performance of the hub motor body, and solves the problems of insufficient waterproof performance caused by loose sealing cover in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and more specifically, to a wheel hub motor. Background Art

[0002] The wheel hub motor is a motor that places the drive, transmission and brake devices all inside the wheel hub, directly driving the wheel to rotate. It is also called an in-wheel motor, which means the motor is installed inside the wheel hub. However, when the motor is installed inside the wheel hub, the wheel hub is closer to the ground and is more likely to be exposed to moisture. The wheel hub motor needs to be effectively waterproofed to ensure the normal operation of the motor. Poor waterproofing will cause the motor to be damaged or stop working, affecting its use.

[0003] At present, the existing hub motor seal usually uses bolts to fix the sealing cover and the hub frame. After the hub is used for a long time, the bolts are easy to fall off, which in turn causes the sealing cover to loosen, thereby affecting the sealing performance and failing to meet the use requirements. Therefore, it is necessary to propose a hub motor to at least partially solve the problems existing in the prior art. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the present invention provides a hub motor, comprising: a hub motor body, the hub motor body comprising a rotor housing, a rotor end cover, and a stator assembly, the stator assembly is arranged in the rotor housing, the rotor end cover is arranged on one side of the rotor housing, and the rotor end cover has a stator through hole, the outer end of the stator assembly partially passes through the stator through hole, and an O-ring is arranged on the outer end, and the O-ring is located in the stator through hole.

[0006] According to the hub motor of an embodiment of the present invention, a tire can be detachably fastened to the rotor housing, and the tire includes a tire bead body and a side tire stopper. The tire bead body is arranged on one side of the side tire stopper so that the tire is fastened to the rotor housing, and the side tire stopper is detachably arranged on the rotor housing.

[0007] According to the hub motor of the embodiment of the present invention, the side tire stopper is provided with a plurality of first mounting holes, the rotor housing is provided with a plurality of second mounting holes corresponding to the first mounting holes, and the first mounting holes and the second mounting holes are connected by screws.

[0008] According to the hub motor of an embodiment of the present invention, the stator assembly includes a stator frame and a fixing seat, the stator frame is arranged in the rotor housing, a plurality of T-shaped stator blocks are arranged on the stator frame, the fixing seat is arranged in the stator frame, and the O-ring is arranged on the outer end of the fixing seat.

[0009] According to the hub motor of the embodiment of the present invention, a bearing seat is arranged in the fixed seat, a bearing body is arranged in the bearing seat, a shaft rod is passed through the bearing body, and a plurality of reinforcing plates are arranged between the bearing seat and the inner wall of the fixed seat, a sealing seat is arranged at the outer end of the fixed seat, and an O-ring is arranged on the sealing seat.

[0010] According to the hub motor of the embodiment of the present invention, a fixing block is arranged at the outer end of the sealing seat, and a plurality of third mounting holes are arranged on the fixing block.

[0011] According to the hub motor of the embodiment of the present invention, a fixing ring is arranged on the inner wall of the rotor housing, a plurality of fixing grooves are arranged on the fixing ring, magnet blocks are arranged in the fixing grooves, and the magnet blocks correspond to the T-shaped stator blocks.

[0012] According to the hub motor of the embodiment of the present invention, a bearing straightening member is arranged between the bearing seat and the bearing body, and the bearing straightening member includes two first C-type cover seats, two second C-type cover seats, two outer retaining rings and a bearing rubber ring. The two first C-type cover seats are connected to each other, and the two outer retaining rings are respectively arranged on both sides of the two first C-type cover seats, and the two second C-type cover seats are arranged in the two outer retaining rings, and the first C-type cover seat and the second C-type cover seat are arranged with a first clamping assembly, and the two second C-type cover seats are plugged into each other, the bearing rubber ring is arranged in the two second C-type cover seats, and the bearing body is arranged in the bearing rubber ring.

[0013] According to the hub motor of the embodiment of the present invention, the first clamping assembly includes a plurality of clamping telescopic parts and a plurality of first clamping spring parts. The plurality of clamping telescopic parts and the plurality of first clamping spring parts are evenly distributed between the first C-shaped cover seat and the second C-shaped cover seat in an alternating manner. The clamping telescopic parts, the first clamping spring parts and the bottom of the second C-shaped cover seat are movably connected.

[0014] According to the hub motor of the embodiment of the present invention, the telescopic clamping part includes a telescopic cap, a telescopic guide column, a telescopic top plate, and a second clamping spring body. The telescopic guide column is slidably arranged in the telescopic cap, and the outer end of the telescopic guide column extends out of the telescopic cap and the first C-shaped cover seat. The telescopic top plate is arranged at the inner end of the telescopic guide column. The second clamping spring body is arranged on the telescopic guide column and is located between the telescopic cap and the telescopic top plate. Fluid is also arranged in the telescopic cap, and an inner flow guide plate is also arranged on the telescopic guide column.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] The invention provides a hub motor, which comprises: a hub motor body, which comprises a rotor shell, a rotor end cover, and a stator assembly, wherein the stator assembly is installed in the rotor shell, and the rotor end cover is provided with a stator through hole, so that the outer end of the stator assembly partially passes through the stator through hole and can then be connected to a device, further, an O-type sealing ring is provided on the outer end, and the O-type sealing ring is located on the inner side of the stator through hole, so that the O-type sealing ring seals the stator through hole and the stator assembly, so after the hub motor body is started, the rotor shell on the stator assembly is then rotated, thereby driving the device to move, and through the sealing design of the O-type sealing ring, the waterproof performance of the hub motor body is effectively improved, and the problem that the sealing cover is loose and leads to insufficient waterproof performance in the prior art is solved.

[0017] The hub motor described in the present invention, other advantages, objectives and features of the present invention will be partially reflected through the following description, and will also be partially understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a partial structural schematic diagram of the tire in the present invention.

[0021] Figure 3 It is a schematic diagram of part of the internal structure of the present invention.

[0022] Figure 4 The structure of the fixing seat in the present invention is shown in FIG. Figure 1 .

[0023] Figure 5 The structure of the fixing seat in the present invention is shown in FIG. Figure 2 .

[0024] Figure 6 It is a schematic diagram of the structure of the rotor housing in the present invention.

[0025] Figure 7 It is a partial structural schematic diagram of the stator assembly in the present invention.

[0026] Figure 8 It is a schematic diagram of the structure of the circuit board component in the present invention.

[0027] Fig. 9 It is a structural schematic diagram of the bearing straightening member in the present invention.

[0028] Fig.10 The partial structure diagram of the bearing straightening member in the present invention is shown in FIG. Figure 1 .

[0029] Fig.11 It is a schematic diagram of the internal structure of the bearing straightening member in the present invention.

[0030] Fig.12 It is a schematic structural diagram of the second C-shaped cover seat in the present invention.

[0031] Fig.13 The partial structure diagram of the bearing straightening member in the present invention is shown in FIG. Figure 2 .

[0032] Fig.14 It is a schematic diagram of the internal structure of the clamping telescopic member in the present invention.

[0033] Fig.15 It is a schematic diagram of the structure of the linkage member in the present invention. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0035] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0036] like Figure 1-Figure 8 As shown, the present invention provides a hub motor, including: a hub motor body 100, the hub motor body 100 includes a rotor housing 1, a rotor end cover 2, and a stator assembly 3, wherein the stator assembly 3 is installed in the rotor housing 1, and the rotor end cover 2 can be installed on one side of the rotor housing 1 by screwing or snapping, and the rotor end cover 2 has a stator through hole 21, so the outer end of the stator assembly 3 partially passes through the stator through hole 21, and then can be connected to the device, further, there is an O-ring 4 on the outer end, the O-ring 4 is located on the inner side of the stator through hole 21, so that the O-ring 4 seals the stator through hole 21 and the stator assembly 3, so after the hub motor body 100 is started, the rotor housing 1 on the stator assembly 3 is rotated, so that the device can be driven to move, and the sealing design of the O-ring 4 effectively improves the waterproof performance of the hub motor body 100, and solves the problems of insufficient waterproof performance caused by loose sealing cover in the prior art.

[0037] Furthermore, a tire 5 is detachably fastened to the rotor housing 1, and the tire 5 makes it easier for the hub motor body 100 to rotate on the ground, thereby driving the device to move;

[0038] The tire 5 includes a tire bead body 51 and a side tire stopper 52. The tire bead body 51 is mounted on one side of the side tire stopper 52, so that the tire 5 is buckled on the rotor housing 1, and the side tire stopper 52 is detachably mounted on the rotor housing 1. An anti-sliding block 511 is also provided on the outer wall of the tire bead body 51, so that when the hub motor body 100 is started, it can rotate better on the ground.

[0039] Furthermore, a plurality of first mounting holes 53 are provided on the side tire stopper 52, and correspondingly, a plurality of second mounting holes 11 corresponding to the first mounting holes 53 are provided on the rotor housing 1, so that the first mounting holes 53 and the second mounting holes 11 can be connected by screws. Therefore, after the tire 5 is installed on the rotor housing 1, it is connected by screws, which facilitates subsequent disassembly, and solves the difficulty of tire replacement caused by the integration of the motor and the tire in the prior art. In this way, the hub motor body 100 and the tire 5 are assembled separately.

[0040] Further, the stator assembly 3 comprises a stator frame 31 and a fixing seat 32, wherein the stator frame 31 is installed in the rotor housing 1, and a plurality of T-shaped stator blocks 311 are installed on the stator frame 31, and the fixing seat 32 is installed in the stator frame 31, and the O-ring 4 is installed on the outer end of the fixing seat 32; further, a bearing seat 321 is installed in the fixing seat 32, and a bearing body 322 is installed in the bearing seat 321, and a shaft rod 323 is penetrated in the bearing body 322, and the outer end of the shaft rod 323 penetrates the outer wall of the rotor housing 1, and then the shaft rod 323 is fixedly connected to the rotor housing 1 directly, so after the hub motor body 100 is started, the rotor housing 1 and the shaft rod 323 rotate synchronously;

[0041] Furthermore, a plurality of reinforcing plates 324 are arranged between the bearing seat 321 and the inner wall of the fixing seat 32, a sealing seat 325 is installed at the outer end of the fixing seat 32, and an O-ring 4 is arranged on the sealing seat 325; the stator assembly 3 with the above structure can be installed in the rotor housing 1, so that the rotor housing 1 can rotate on the stator assembly 3;

[0042] Furthermore, a fixing block 326 is installed at the outer end of the sealing seat 325, and a plurality of third mounting holes 327 are opened on the fixing block 326. The third mounting holes 327 are connected to the device to achieve the connection between the hub motor body 100 and the device.

[0043] Furthermore, a circuit board component 6 is installed in the fixing seat 32. Here, the circuit board component 6 is circular and can be installed between the stator frame 31 and the bearing seat 321 to facilitate the rotation of the shaft 323. The circuit board component 6 has a conductive terminal 61, and correspondingly, the fixing seat 32 has a conductive hole 320. The conductive terminal 61 can be inserted into the conductive hole 320 to be electrically connected to the device.

[0044] Furthermore, a fixing ring 12 is installed on the inner wall of the above-mentioned rotor housing 1, and a plurality of fixing grooves 13 are opened on the fixing ring 12, and a magnet block 14 is installed in the fixing groove 13, and the magnet block 14 corresponds to the T-shaped stator block 311, so when the circuit board component 6 is energized, a magnetic force is generated between the magnet block 14 and the T-shaped stator block 311, thereby driving the rotor housing 1 to rotate, and the shaft 323 also rotates synchronously. It can be understood that a detection magnetic ring 328 is also installed on the shaft 323 to facilitate the use of the hub motor body 100; through the design of the above-mentioned structure, it can be ensured that the spacing between the T-shaped stator block and the magnet block is more consistent.

[0045] Exemplary Bearing Centralizer

[0046] like Figure 9-Figure 15 As shown, further, in some embodiments of the present invention, a bearing straightening member 7 is installed between the bearing seat 321 and the bearing body 322, and the bearing straightening member 7 provides flexible fixed support for the internal bearing body 322 to prevent the bearing body 322 from tilting, so that the hub motor body 100 can pass better when encountering uneven places during movement, and the internal bearing body 322 also provides corresponding flexible support for the shaft rod 323, thereby reducing the rigid connection between the shaft rod 323, the bearing body 322 and the fixed seat 32;

[0047] Further, the above-mentioned bearing straightening member 7 comprises two first C-shaped cover seats 71, two second C-shaped cover seats 72, two outer retaining rings 73 and a bearing rubber ring 74, wherein the two first C-shaped cover seats 71 are butted against each other. It can be understood that the ends of the first C-shaped cover seats 71 respectively have a first fin plate 711 and a second fin plate 712, which can be inserted into the side groove (not shown) in the bearing seat 321 after being butt-connected, so that the two first C-shaped cover seats 71 can be fixed, and there is also a gap between the two first C-shaped cover seats 71 and the bearing seat 321, so as to properly install the bearing straightening member 7;

[0048] The above-mentioned two outer retaining rings 73 are respectively installed on both sides of the two first C-type cover seats 71, and the two second C-type cover seats 72 are installed in the two outer retaining rings 73, and a first clamping assembly 75 is installed between the first C-type cover seat 71 and the second C-type cover seat 72, and the two second C-type cover seats 72 are plugged into each other, and bearing rubber rings 74 are installed in the two second C-type cover seats 72, and the above-mentioned bearing body 322 is installed in the bearing rubber ring 74, and the first clamping assembly 75 pushes against the internal second C-type cover seat 72, so that the second C-type cover seat 72 fixes the bearing rubber ring 74, and then the bearing rubber ring 74 flexibly fixes and supports the internal bearing body 322 to prevent the bearing body 322 from tilting.

[0049] It can be understood that one end of the second C-type cover seat 72 has a guide plate body 721, and the other end of the second C-type cover seat 72 has a guide groove 722, where the guide plate body 721 is inserted into the guide groove 722, and the internal length of the guide groove 722 is greater than the length of the guide plate body 721. Therefore, as the first clamping assembly 75 in the first C-type cover seat 71 supports the two second C-type cover seats 72, the two second C-type cover seats 72 can be further contracted, and then the internal bearing rubber ring 74 is further fixed to maintain a normal working state, to prevent it from loosening with the bearing body 322 and affecting the rotation of the hub motor body 100.

[0050] Exemplary First Clamping Assembly

[0051] Furthermore, some embodiments of the present invention provide a specific structure of the first clamping assembly 75, wherein the first clamping assembly 75 includes a plurality of clamping telescopic members 76 and a plurality of first clamping spring members 77, wherein the plurality of clamping telescopic members 76 and the plurality of first clamping spring members 77 are evenly distributed between the first C-shaped cover seat 71 and the second C-shaped cover seat 72 in an alternating manner, so that the plurality of clamping telescopic members 76 and the plurality of first clamping spring members 77 can evenly support the second C-shaped cover seat 72, and it can be understood that the plurality of clamping telescopic members 76 and the plurality of first clamping spring members 77 It is located in the middle of the inner bottom wall of the second C-type cover seat 72, so that after supporting the second C-type cover seat 72 from the middle position, the bearing body 322 located inside the second C-type cover seat 72 is fixedly clamped, and when the two second C-type cover seats 72 are plugged into each other and contracted, the clamping telescopic member 76, the first clamping spring member 77 and the bottom of the second C-type cover seat 72 are movably connected, that is, there will be no interference with the second C-type cover seat 72, so that the second C-type cover seat 72 can cover bearing bodies 322 of different models, which greatly improves the practicality of the hub motor body 100.

[0052] Exemplary Clamping Telescope

[0053] Furthermore, some embodiments of the present invention provide a specific structure of the above-mentioned clamping telescopic member 76, wherein the clamping telescopic member 76 of the structure includes a telescopic cap 761, a telescopic guide column 762, a telescopic top plate 763, and a second clamping spring body 764. Specifically, the telescopic cap 761 is fixedly mounted on the inner bottom wall of the first C-shaped cover seat 71, the telescopic guide column 762 is slidably mounted in the telescopic cap 761, and the outer end of the telescopic guide column 762 extends out of the telescopic cap 761 and the first C-shaped cover seat 71, the telescopic top plate 763 is mounted on the inner end of the telescopic guide column 762, and the second clamping spring body 764 is mounted on the telescopic guide column 762 and is located between the telescopic cap 761 and the telescopic top plate 763, so that the second clamping spring body 764 abuts against the telescopic top plate 763, so that the telescopic The push-off plate 763 continuously pushes against the second C-type cover seat 72. At the same time, a fluid 765 is sealed in the telescopic cap 761. Therefore, when the bearing body 322 is skewed, a corresponding warping action will be generated on the second C-type cover seat 72, causing part of the clamping telescopic member 76 to shrink. However, since the fluid 765 has a certain resistance, it can flow in the inner flow guide plate 766 installed on the telescopic guide column 762. Specifically, the inner flow guide plate 766 has a plurality of guide holes 767 for the flow of the fluid 765. Therefore, the movement of the telescopic guide column 762 will be slowed down, reducing its rigidity. In addition, due to the design of the plurality of first clamping spring members 77 and the plurality of second clamping spring bodies 764, the second C-type cover seat 72 can return to its original normal working posture.

[0054] Exemplary Second Clamp Assembly

[0055] Further, the two outer retaining rings 73 of the present invention are rotatably mounted on both sides of the two first C-shaped cover seats 71, respectively. It can be understood that the side wall of the first C-shaped cover seat 71 has an L-shaped guide rail 713, and correspondingly, the inner wall of the outer retaining ring 73 has an inner guide rail 731 slidably connected to the L-shaped guide rail 713, so that the rotation of the outer retaining ring 73 is achieved through the L-shaped guide rail 713 and the inner guide rail 731;

[0056] Furthermore, on the basis of the above-mentioned embodiment, the bearing straightening member 7 also includes a second clamping assembly 78, in which the second clamping assembly 78 is installed between the first C-type cover seat 71 and the second C-type cover seat 72, and the second clamping assembly 78 is also movably connected to the outer retaining ring 73, and abuts against the second C-type cover seats 72, so that the end of one second C-type cover seat 72 is plugged into the end of the other second C-type cover seat 72, that is, the second clamping assembly 78 is used to better realize the mutual plug-in between the two second C-type cover seats 72.

[0057] Furthermore, the second clamping assembly 78 of the above structure includes two side clamping mechanisms 79 and a linkage member 80, wherein the linkage member 80 is installed in the first C-type cover seat 71, and the two side clamping mechanisms 79 are located on both sides of the linkage member 80, that is, the two side clamping mechanisms 79 are movably connected through the linkage member 80, and the side clamping mechanism 79 is movably connected to the outer retaining ring 73, and the side clamping mechanism 79 also simultaneously abuts against the second C-type cover seat 72, so that the end of one second C-type cover seat 72 can be plugged and connected with the end of another second C-type cover seat 72.

[0058] Exemplary Side Clamp Mechanisms

[0059] Furthermore, some embodiments of the present invention also provide a specific structure of the above-mentioned side clamping mechanism 79, wherein the side clamping mechanism 79 of this structure comprises a plurality of side oblique abutting rods 791 and a plurality of arcuate short plates 792, wherein the plurality of side oblique abutting rods 791 and the plurality of arcuate short plates 792 are staggered and evenly distributed, and one end of the side oblique abutting rod 791 is hinged to the inner bottom wall of the first C-type cover seat 71 through a torsion spring (not shown), so that the other end abuts against the inner bottom wall of the second C-type cover seat 72, and the arcuate short plates 792 are installed on the inner side walls of the second C-type cover seat 72, and the linkage member 80 is further movably connected to the arcuate short plates 792 on both sides, respectively. The arc-shaped short plate 792 can be driven to rotate under the action of the linkage 80, and then each arc-shaped short plate 792 on the second C-shaped cover seat 72 can push the adjacent side inclined support rod 791, so that the side inclined support rod 791 leaves or is more closely fitted to the second C-shaped cover seat 72, so as to support the second C-shaped cover seat 72, and further fix the bearing rubber ring 74 inside the second C-shaped cover seat 72 at the side position. The side position of the bearing rubber ring 74 can clamp the edge of the bearing body 322 to prevent it from loosening with the bearing body 322, causing the bearing body 322 to tilt and affect the rotation of the hub motor body 100.

[0060] Example linkage

[0061] like Fig.15As shown, further, some embodiments of the present invention provide a specific structure of the above-mentioned linkage member 80, where the linkage member 80 of the structure includes a handle member 81, a first transmission member 82, and a second transmission member 83, wherein the handle member 81 is rotatably arranged on the first C-shaped cover seat 71, and the handle member 81 is connected to the first transmission member 82 on the inner bottom wall of the first C-shaped cover seat 71, so after the first handle member 81 is actuated, the first transmission member 82 can be driven to actuate, so as to actuate the subsequent second transmission member 83, specifically, the second transmission member 83 is installed between the two arc-shaped short plates 792. , and then the second transmission member 83 drives the entire side clamping mechanism 79 to move through the two arc-shaped short plates 792, so that the above-mentioned side clamping mechanism 79 drives the outer retaining ring 73 to rotate, and presses against the second C-type cover seat 72, so that the end of one of the second C-type cover seats 72 is plugged and connected with the end of the other second C-type cover seat 72, and the internal bearing rubber ring 74 is further fixed at the two side positions. The side position of the bearing rubber ring 74 can clamp the edge of the bearing body 322 to prevent it from loosening with the bearing body 322, causing the bearing body 322 to be skewed and affecting the rotation of the hub motor body 100.

[0062] Furthermore, the first transmission member 82 comprises a first coaxial rod 821, wherein the first coaxial rod 821 is installed in the first C-shaped cover seat 71 through two fixed end plates, a first conical tooth piece 822 is installed at one end of the first coaxial rod 821, and a second conical tooth piece 823 corresponding to the first conical tooth piece 822 is installed at the bottom of the handle member 81, so after the handle member 81 is rotated, the second conical tooth piece 823 and the first conical tooth piece 822 are used to realize the action of the first coaxial rod 821, and then the first coaxial rod 821 drives the second coaxial rod 831 in the second transmission member 83 to rotate, and here the second coaxial rod 831 is rotatably connected to the inner bottom wall of the first C-shaped cover seat 71;

[0063] Furthermore, two circular teeth 832 are installed on the second coaxial rod 831, and the two circular teeth 832 have a plurality of tooth grooves 833, wherein the tooth grooves 833 on one of the circular teeth 832 are movably connected to the threaded body 824 on the first coaxial rod 821, and the other circular teeth 832 are movably connected to the arcuate short plates 792 on both sides, and the arcuate short plates 792 have a plurality of convex tooth bodies 793, and the convex tooth bodies 793 correspond to the tooth grooves 833 on the circular teeth 832, so the first coaxial rod 821 drives the second coaxial rod 831 to rotate through one of the circular teeth 832. Then another circular toothed part 832 drives the two arcuate short plates 792 to move, and then the two outer retaining rings 73 rotate in the opposite direction, so that the arcuate short plates 792 can move the side oblique support rods 791, and then the side oblique support rods 791 can clamp the second C-type cover seat 72 at two side positions, and then the second C-type cover seat 72 can further fix the internal bearing rubber ring 74, and the side position of the bearing rubber ring 74 can clamp the edge of the bearing body 322 to prevent the bearing body 322 from being skewed, so that the bearing body 322 maintains a normal posture, and the hub motor body 100 can rotate better.

[0064] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A hub motor, characterized in that: include: A wheel hub motor body (100), the wheel hub motor body (100) comprising a rotor housing (1), a rotor end cover (2), and a stator assembly (3), the stator assembly (3) being arranged in the rotor housing (1), the rotor end cover (2) being arranged on one side of the rotor housing (1), and the rotor end cover (2) having a stator through hole (21), the outer end of the stator assembly (3) partially passing through the stator through hole (21), and an O-type sealing ring (4) being arranged on the outer end, and the O-type sealing ring (4) being located in the stator through hole (21); The stator assembly (3) comprises a stator frame (31) and a fixing seat (32); the stator frame (31) is arranged in the rotor housing (1); the fixing seat (32) is arranged in the stator frame (31); a bearing seat (321) is arranged in the fixing seat (32); and a bearing body (322) is arranged in the bearing seat (321); A bearing straightening member (7) is arranged between the bearing seat (321) and the bearing body (322), and the bearing straightening member (7) comprises two first C-type cover seats (71), two second C-type cover seats (72), two outer retaining rings (73) and a bearing rubber ring (74), the two first C-type cover seats (71) are butted against each other, the two outer retaining rings (73) are respectively arranged on both sides of the two first C-type cover seats (71), the two second C-type cover seats (72) are arranged in the two outer retaining rings (73), and the first C-type cover seat (71) and the second C-type cover seat (72) are arranged with a first clamping assembly (75), and the two second C-type cover seats (72) are plug-connected with each other, the bearing rubber ring (74) is arranged in the two second C-type cover seats (72), and the bearing body (322) is arranged in the bearing rubber ring (74); The first clamping assembly (75) comprises a plurality of retractable clamping parts (76) and a plurality of first clamping spring parts (77); the plurality of retractable clamping parts (76) and the plurality of first clamping spring parts (77) are evenly distributed in an alternating manner between the first C-shaped cover seat (71) and the second C-shaped cover seat (72); the retractable clamping parts (76), the first clamping spring parts (77) and the bottom of the second C-shaped cover seat (72) are movably connected.

2. The wheel hub motor according to claim 1, characterized in that: A tire (5) is also detachably fastened to the rotor housing (1); the tire (5) comprises a tire bead body (51) and a side tire stopper (52); the tire bead body (51) is arranged on one side of the side tire stopper (52), so that the tire (5) is fastened to the rotor housing (1); and the side tire stopper (52) is detachably arranged on the rotor housing (1).

3. A hub motor according to claim 2, characterized in that: The side tire stopper (52) is provided with a plurality of first mounting holes (53), the rotor housing (1) is provided with a plurality of second mounting holes (11) corresponding to the first mounting holes (53), and the first mounting holes (53) and the second mounting holes (11) are connected via screws.

4. The hub motor according to claim 1, characterized in that: The stator frame (31) is arranged in the rotor housing (1), a plurality of T-shaped stator blocks (311) are arranged on the stator frame (31), and the O-shaped sealing ring (4) is arranged on the outer end of the fixing seat (32).

5. The wheel hub motor according to claim 4, characterized in that: A shaft (323) is inserted into the bearing body (322), and a plurality of reinforcing plates (324) are arranged between the bearing seat (321) and the inner wall of the fixing seat (32). A sealing seat (325) is arranged at the outer end of the fixing seat (32), and an O-ring (4) is arranged on the sealing seat (325).

6. The wheel hub motor according to claim 5, characterized in that: The outer end of the sealing seat (325) is provided with a fixing block (326), and the fixing block (326) is provided with a plurality of third mounting holes (327).

7. The wheel hub motor according to claim 4, characterized in that: A fixing ring (12) is arranged on the inner wall of the rotor housing (1), a plurality of fixing grooves (13) are arranged on the fixing ring (12), a magnet block (14) is arranged in the fixing groove (13), and the magnet block (14) corresponds to the T-shaped stator block (311).

8. The wheel hub motor according to claim 1, characterized in that: The telescopic clamping member (76) includes a telescopic cap (761), a telescopic guide column (762), a telescopic top plate (763), and a second clamping spring body (764). The telescopic guide column (762) is slidably arranged in the telescopic cap (761). The outer end of the telescopic guide column (762) extends out of the telescopic cap (761) and a first C-shaped cover seat. The telescopic top plate (763) is arranged at the inner end of the telescopic guide column (762). The second clamping spring body (764) is arranged on the telescopic guide column (762) and is located between the telescopic cap (761) and the telescopic top plate (763). A fluid (765) is also arranged in the telescopic cap (761), and an inner flow guide plate (766) is also arranged on the telescopic guide column (762).

Images