Hub motor with dustproof device

Abstract

The utility model belongs to the technical field of wheel hub motors, in particular to a wheel hub motor with a dustproof device, which comprises a wheel hub, a first motor outer cover and a second motor outer cover, and a motor main shaft is mounted in the middle of the first motor outer cover, and is characterized in that the motor main shaft penetrates through the middle of the first motor outer cover; a dustproof mechanism is installed between the motor main shaft and the first motor outer cover in a penetrating mode, the dustproof mechanism comprises a dustproof shell and a fixed base, the fixed base is provided with a circular ring table, the dustproof shell is clamped to the fixed base through the circular ring table, and the dustproof shell and the fixed base are fixedly connected through the circular ring table. The motor cable in the motor main shaft can be completely protected, and meanwhile, the dustproof baffle outside the dustproof shell can be quickly disassembled and assembled, so that the shaft side of the motor main shaft is protected to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the wheel hub motor technical field, specifically belongs to a wheel hub motor with dustproof device. BACKGROUND

[0002] The riding electric bicycle is a kind of green, efficient travel mode, more and more people's favour, and use range covers every corner of city road network, and as the most critical operating component on electric bicycle-wheel hub motor, basically in high frequency operation, and the existing electric bicycle basically adopts from wheel hub motor to draw out motor line and the relevant components of controller to connect.And motor line is basically exposed, will face bad road conditions and complex weather, the operating state of wheel hub motor is the key to the service life of electric bicycle, the existing electric bicycle is subject to manufacturing cost or structural design complexity, the number of dust cover that can be installed to wheel hub motor is less, but the protection demand to wheel hub motor is huge in reality, wheel hub motor is damaged due to external water or silt foreign matter to bearing, leading to wheel hub motor internal sealing protection failure, produces wheel hub motor damage, produces huge maintenance cost. CONTENT OF THE UTILITY MODEL

[0003] To solve the problems mentioned in the background art, a wheel hub motor with dustproof device is provided, and the entire wheel hub motor adopts a whole dustproof device, and the first motor cover and the second motor cover are arranged with targeted dustproof devices.

[0004] The technical scheme of the utility model discloses a wheel hub motor with dustproof device, which comprises a wheel hub, a first motor cover and a second motor cover, a motor spindle is arranged in the middle of the first motor cover, characterized in that: the motor spindle penetrates the middle of the first motor cover, a dustproof mechanism is arranged between the motor spindle and the first motor cover, the dustproof mechanism comprises a dustproof shell and a fixed base, the fixed base is provided with a circular ring table, and the dustproof shell is clamped on the fixed base through the circular ring table.

[0005] Preferably, the dustproof shell is further provided with a dust baffle, circular threaded holes are arranged on both sides of the middle of the dust baffle, and circular through holes are arranged at the upper end and the lower end of the dust baffle respectively.

[0006] Preferably, the surface of the dustproof shell is provided with a positioning boss, the positioning boss is provided with a stopper upwards and downwards, the dustproof shell and the dust baffle are fixed by being installed on the circular threaded hole 3022 through bolts, and the positioning boss abuts against the circular through hole on the dust baffle.

[0007] Preferably, the motor spindle is internally provided with a motor cable, and the motor spindle is provided with an opening on one side for the motor cable to pass through.

[0008] Preferably, the lower part of the dustproof shell is provided with an L-shaped cable protection cavity for protecting the motor cable.

[0009] Preferably, a connecting hole is arranged on the first motor outer cover, a threaded fixing hole is arranged on the hub, and the connecting hole and the threaded fixing hole are fixedly connected by a fixing screw.

[0010] Preferably, toothed sealing rings are arranged on both sides of the motor spindle, the teeth of the toothed sealing rings are arranged at intervals to form a barrier layer, and the toothed sealing rings are used to enhance the waterproof performance of the hub.

[0011] Preferably, a protective cover is arranged on one side of the second motor outer cover, a protective boss is arranged on the second motor outer cover, the protective boss protrudes from the inner side of the second motor outer cover, and the protective cover is abutted and installed on the protective boss to isolate foreign matters from the outside of the second motor outer cover and enhance the protection capability.

[0012] Preferably, the dustproof shell is integrally made of one-time injection molding plastic.

[0013] Preferably, rotary bearings are arranged on both sides of the middle part of the motor spindle, and the outer surface of the rotary bearing is coated with waterproof paint.

[0014] Compared with the prior art, the hub motor with the dustproof device has the following beneficial effects:

[0015] 1. The dustproof baffle is abutted on the dustproof shell and is fixed by a screw, the entire dustproof shell completely wraps the motor cable, the L-shaped cable protection cavity is used to completely wrap the motor cable, and in addition, the protective shell is clamped on the fixed base through the circular ring table to enhance the capability of the entire dustproof device to isolate the external water vapor and dust.

[0016] 2. The protective cover is arranged on the outside of the second motor outer cover, the protective cover is abutted and installed on the protective boss to enhance the overall protection capability of the second motor outer cover, the device has a compact and simple structure, is convenient to install, and has low overall cost. DETAILED DESCRIPTION

[0017] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0018] Figure 1 It is an overall view of the embodiment of the utility model.

[0019] Figure 2 It is an overall exploded view of the embodiment of the utility model.

[0020] Figure 3 For Figure 2 A local enlarged view of the A of the figure.

[0021] Figure 4 For the overall cross-sectional view of the embodiment of the utility model.

[0022] Figure 5 For the display view of the second motor outer cover in the embodiment of the utility model.

[0023] Reference signs

[0024] 1-hub;101-threaded fixing hole;102-magnetic steel sheet;2-first motor outer cover;201-connection hole;3-dustproof mechanism;301-dustproof shell;3011-positioning boss;3012-stop block;3013-L-shaped cable protection cavity;302-dustproof baffle;3021-circular through hole;3022-circular threaded hole;303-fixing base;3031-circular ring table;4-motor spindle;401-motor cable;402-rotary bearing;403-tooth seal ring;5-second motor outer cover;501-protection boss;502-protection cover; DETAILED DESCRIPTION

[0025] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments.

[0026] The components of the embodiments of the utility model generally described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

[0027] Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Exemplary expressions of the terms "including" and "comprising" are not necessarily intended to refer to the same embodiment or example. Moreover, specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0030] As shown in Figures 1 to 5 A wheel hub motor with dustproof device, comprising a wheel hub 1 and a first motor cover 2 and a second motor cover 5, the first motor cover 2 is provided with a motor shaft 4 in the middle, characterized in that: the motor shaft 4 penetrates the first motor cover 2 in the middle, the motor shaft 4 and the first motor cover 2 are provided with a dustproof mechanism 3 between the penetration, the dustproof mechanism 3 contains a dustproof shell 301 and a fixed base 303, the fixed base 301 is provided with a circular ring table 3031, the dustproof shell 301 is clamped on the fixed base 303 through the circular ring table 3031. The dustproof shell 301 is also provided with a dustproof baffle 302, the dustproof baffle 302 is provided with a circular threaded hole 3022 on both sides of the middle, the upper end and the lower end of the dustproof baffle 302 are provided with a circular through hole 3021 respectively. The surface of the dustproof shell 301 is provided with a positioning boss 3011, the positioning boss 3011 is provided with a stop block 3012 on the upper and lower sides, the dustproof shell 301 and the dustproof baffle 302 are fixed by being installed on the circular threaded hole 3022 through bolts, and the positioning boss 3011 abuts against the circular through hole 3021 on the dustproof baffle 302. The motor shaft 4 is provided with a motor cable 401 inside, and an opening is provided on one side of the motor shaft 4 for the motor cable 401 to pass through. The lower part of the dustproof shell 301 is provided with an L-shaped cable protection cavity 3013 for protecting the motor cable 401. The first motor cover 2 is provided with a connecting hole 201, and the wheel hub 1 is provided with a threaded fixing hole 101, and the connecting hole 201 and the threaded fixing hole 101 are fixedly connected by a fixing screw. The motor shaft 4 is provided with a gear seal ring 403 on both sides, the gears on the gear seal ring 403 are arranged at intervals to form a barrier layer, and the gear seal ring 403 is used to enhance the waterproof performance of the wheel hub 1. The motor shaft 4 is provided with a rotating bearing 402 on both sides in the middle, and the outer surface of the rotating bearing 402 is coated with waterproof paint.

[0031] As shown in Figure 5As shown, the second motor outer cover 5 is provided with a protective cover 502 on the outer side, the second motor outer cover 5 is provided with a protective boss 501, the protective boss 501 is protruded from the inner side of the second motor outer cover 5, and the protective cover 502 is abutted and installed on the protective boss 501, so as to isolate foreign matters from the outside to the inside of the second motor outer cover 5 and enhance the protection capability.

[0032] Working principle: The whole hub motor protection device body is divided into two parts, the first part is a dustproof mechanism, the dustproof mechanism 3 is internally provided with a dustproof shell 301, a dustproof baffle 302 and a fixed base 303, since the motor cable 401 passes through the inside of the motor main shaft 4, in order to protect the motor cable 401, an L-shaped cable protection cavity 3013 is arranged in the dustproof shell, the motor cable 401 passes through the reserved through hole on the motor main shaft 4 and is arranged in the L-shaped cable protection cavity 3013, in order to improve the protection capability of the protection device and the convenience of disassembly and assembly, the positioning boss 3011 and the stopper 3012 are arranged on the dustproof shell 301, the dustproof baffle 302 is limited by abutting against the positioning boss on the dustproof shell 301, in order to enhance the connection fastening between the dustproof baffle 302 and the dustproof shell 301, threaded holes are arranged on both sides of the middle part of the dustproof baffle 302, and the dustproof baffle 302 is connected by screwing.

[0033] As to the second part, the protective cover 502 is arranged on the outer side of the second motor outer cover 5, in order to enhance the actual practical effect of the protective cover 502, the protective boss 501 is arranged on the second motor outer cover 5, it should be noted that the protective boss 501 is protruded from the inner side of the second motor outer cover 5, the protective cover 502 is abutted and buckled on the protective boss 501, the protective boss 501 is protruded by a certain height, on the one hand, the protective cover is limited during installation into the second motor outer cover, on the other hand, the ability of isolating dust and moisture is enhanced, so that the overall dustproof isolation capability of the hub motor is enhanced whether on the left side or the right side.

[0034] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A hub motor with a dustproof device, comprising a hub, a first motor cover, and a second motor cover, wherein a motor spindle is mounted in the middle of the first motor cover, characterized in that: The motor spindle passes through the middle of the first motor outer cover. A dustproof mechanism is installed between the motor spindle and the first motor outer cover. The dustproof mechanism includes a dustproof housing and a fixed base. The fixed base is provided with a circular ring platform. The dustproof housing is snapped onto the fixed base through the circular ring platform.

2. A hub motor with a dustproof device as described in claim 1, characterized in that: The dustproof housing is also provided with a dustproof baffle, and the dustproof baffle has circular threaded holes on both sides of the middle part, and circular through holes at the upper and lower ends of the dustproof baffle.

3. A hub motor with a dustproof device as described in claim 2, characterized in that: The dustproof housing is provided with a positioning boss on its surface, and a stop block is provided above and below the positioning boss. The dustproof housing and the dustproof baffle are fixed by bolts installed in a circular threaded hole, and the positioning boss abuts against a circular through hole on the dustproof baffle.

4. A hub motor with a dustproof device as described in claim 1, characterized in that: The motor spindle has a motor cable inside, and an opening is provided on one side of the motor spindle to allow the motor cable to pass through.

5. A hub motor with a dustproof device as described in claim 1 or 4, characterized in that: The lower part of the dustproof housing is provided with an L-shaped cable protection cavity to protect the motor cable.

6. A hub motor with a dustproof device as described in claim 1, characterized in that: The first motor outer cover is provided with a connection hole, and the wheel hub is provided with a threaded fixing hole. The connection hole and the threaded fixing hole are fixedly connected to the first motor outer cover and the wheel hub by fixing screws.

7. A hub motor with a dustproof device as described in claim 1, characterized in that: The motor spindle is provided with toothed sealing rings on both sides. The teeth on the toothed sealing rings are arranged at intervals to form a barrier layer. The toothed sealing rings are used to enhance the waterproof performance inside the wheel hub.

8. A hub motor with a dustproof device as described in claim 1, characterized in that: A protective cover is provided on one side of the outer cover of the second motor. A protective protrusion is provided on the outer cover of the second motor. The protective protrusion protrudes from the inner side of the outer cover of the second motor. The protective cover is installed on the protective protrusion to isolate foreign objects from the outside and enhance the protection capability.

9. A hub motor with a dustproof device as described in claim 1, characterized in that: The dustproof housing is made of plastic through a single injection molding process.

10. A hub motor with a dustproof device as described in claim 1, characterized in that: Rotary bearings are provided on both sides of the middle part of the motor spindle, and the outer surface of the rotary bearings is coated with waterproof coating.

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