Hub motor

Abstract

The utility model discloses a wheel hub motor, which comprises a wheel hub motor main body, the wheel hub motor main body comprises a rotor shell, a rotor end cover and a stator assembly, the stator assembly is arranged in the rotor shell, the rotor end cover is arranged on one side of the rotor shell, the rotor end cover is provided with a stator through hole, and the outer end of the stator assembly partially penetrates out of the stator through hole. And an O-shaped sealing ring is arranged at the outer end and is positioned in the stator through hole. According to the hub motor provided by the utility model, the O-shaped sealing ring is also arranged at the outer end and is positioned at the inner side of the stator through hole, so that the stator through hole and the stator assembly are sealed by the O-shaped sealing ring, and after the hub motor main body is started, the rotor shell on the stator assembly rotates to drive equipment to move; and through the sealing design of the O-shaped sealing ring, the waterproof performance of the hub motor main body is effectively improved, and the problems of insufficient waterproof performance and the like caused by loosening of the sealing cover in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and more specifically, to a 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 seals usually use 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, causing the sealing cover to loosen, thereby affecting the sealing performance and failing to meet the use requirements.

[0004] Therefore, it is necessary to propose a hub motor to at least partially solve the problems existing in the prior art. Utility Model Content

[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0006] In order to at least partially solve the above problems, the utility model 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.

[0007] According to the hub motor of the embodiment of the utility model, a tire can be detachably fastened to the rotor housing.

[0008] According to the hub motor of the embodiment of the utility model, 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 buckled on the rotor housing, and the side tire stopper is detachably arranged on the rotor housing.

[0009] According to the hub motor of the embodiment of the utility model, 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.

[0010] According to the hub motor of the embodiment of the utility model, 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.

[0011] According to the hub motor of the embodiment of the utility model, a bearing sleeve is arranged in the fixing seat, a bearing body is arranged in the bearing sleeve, a shaft rod is passed through the bearing body, and a plurality of reinforcing plates are arranged between the bearing sleeve and the inner wall of the fixing seat, a sealing seat is arranged at the outer end of the fixing seat, and an O-ring is arranged on the sealing seat.

[0012] According to the hub motor of the embodiment of the utility model, 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.

[0013] According to the hub motor of the embodiment of the utility model, 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.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] The utility model 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 of insufficient waterproof performance caused by loose sealing cover in the prior art is solved.

[0016] The hub motor described in the present invention and 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

[0017] 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:

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a partial structural schematic diagram of the tire in the utility model.

[0020] Figure 3 It is a schematic diagram of part of the internal structure of the utility model.

[0021] Figure 4 The structure of the fixed seat in the utility model is shown in FIG. Figure 1 .

[0022] Figure 5 The structure of the fixed seat in the utility model is shown in FIG. Figure 2 .

[0023] Figure 6 It is a structural schematic diagram of the rotor housing in the utility model.

[0024] Figure 7 It is a partial structural schematic diagram of the stator assembly in the utility model.

[0025] Figure 8 It is a structural schematic diagram of the circuit board component in the utility model. DETAILED DESCRIPTION

[0026] The present invention will be 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.

[0027] 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.

[0028] like Figure 1-Figure 8As shown, the utility model 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.

[0029] 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;

[0030] 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.

[0031] 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.

[0032] 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 sleeve 321 is installed in the fixing seat 32, and a bearing body 322 is installed in the bearing sleeve 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;

[0033] Furthermore, a plurality of reinforcing plates 324 are arranged between the bearing sleeve 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-type sealing 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;

[0034] 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.

[0035] Furthermore, a circuit board component 6 is installed in the above-mentioned fixed seat 32. Here, the circuit board component 6 is circular and can be installed in the position between the stator frame 31 and the bearing sleeve 321 to facilitate the rotation of the shaft 323; wherein, the circuit board component 6 has a conductive terminal 61, and correspondingly, the fixed seat 32 has a conductive hole 320, and the conductive electron 61 can be inserted into the conductive hole 320 to be electrically connected to the controller inside the device; it can be understood that the circuit board component 6 is an existing component well known to technicians in this field, and the specific structural principle will not be repeated.

[0036] 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.

[0037] In the description of the present invention, it should 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 a limitation on the present invention.

[0038] 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.

[0039] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. 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 utility model 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) comprises a rotor housing (1), a rotor end cover (2), and a stator assembly (3); the stator assembly (3) is arranged in the rotor housing (1); the rotor end cover (2) is arranged on one side of the rotor housing (1); the rotor end cover (2) has a stator through hole (21); the outer end of the stator assembly (3) partially passes through the stator through hole (21); an O-type sealing ring (4) is arranged on the outer end; and the O-type sealing ring (4) is located in the stator through hole (21).

2. The wheel hub motor according to claim 1, characterized in that: A tire (5) is also detachably fastened to the rotor housing (1).

3. A hub motor according to claim 2, characterized in that: 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 buckled on the rotor housing (1); and the side tire stopper (52) is detachably arranged on the rotor housing (1).

4. The wheel hub motor according to claim 3, 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.

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

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

7. The wheel hub motor according to claim 6, 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).

8. The wheel hub motor according to claim 5, 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).

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