Electric motorcycle hub assembly and electric motorcycle

Abstract

The electric motorcycle hub assembly comprises a hub, a disc type motor, a planetary reducer and an electric motorcycle flat insertion assembly, the disc type motor is arranged in the middle of the hub and comprises a power output shaft, and the planetary reducer is arranged on the disc type motor and comprises a sun gear, a planet gear and an outer gear ring. The planet gear is in transmission connection between the sun gear and the outer gear ring, the sun gear is in transmission connection with the power output shaft, and the outer gear ring is connected with the hub. When the disc type motor is started, the power output shaft drives the planet wheel to rotate, the planet wheel drives the outer gear ring to rotate, and the outer gear ring drives the hub to rotate. The electric friction flat inserting assembly is at least connected with one of the disc type motor and the planetary reducer and used for being connected with a vehicle body. The hub is driven through a driving combination structure of the disc type motor and the planetary reducer, the occupied space is small, and the size of the hub of the electric motorcycle can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, and more specifically to an electric motorcycle hub assembly and an electric motorcycle. Background Art

[0002] The wheel hub of existing electric motorcycles is relatively large, which takes up a certain amount of space in design, not only affecting the overall appearance of the vehicle, but also limiting the layout and function of other components. Especially in the field of modern electric motorcycle manufacturing that pursues lightweight and compact design, the problem of wheel hub volume is particularly prominent. Therefore, how to effectively reduce the volume of the wheel hub of an electric motorcycle and make it more compact has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0003] In view of this, an object of the present invention is to provide an electric motorcycle hub assembly to reduce the volume of the electric motorcycle hub.

[0004] Another object of the utility model is to provide an electric motorcycle comprising the electric motorcycle hub assembly.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electric motorcycle hub assembly, comprising:

[0007] Wheel hub;

[0008] A disc motor including a power output shaft;

[0009] A planetary reducer, arranged on the disc motor, comprising a sun gear, a planetary gear and an outer gear ring, wherein the planetary gear is drivingly connected between the sun gear and the outer gear ring, and the sun gear is drivingly connected to the power output shaft, and the outer gear ring is connected to the wheel hub;

[0010] The electric motor flat plug assembly is connected to at least one of the disc motor and the planetary reducer.

[0011] Optionally, in the above-mentioned electric motorcycle hub assembly, the motor housing of the disc motor includes:

[0012] A first housing, the planetary reducer is arranged on the first housing;

[0013] The second housing is connected to the first housing and forms an installation space. The stator assembly, the rotor assembly and the power output shaft of the disc motor are all arranged in the installation space, and the first end of the power output shaft passes through the first housing and is connected to the sun gear transmission.

[0014] Optionally, in the above-mentioned electric motorcycle hub assembly, the second end of the power output shaft passes through the second shell, and a brake assembly is provided on the outer wall of the second shell, and the brake assembly is used to brake the second end of the power output shaft.

[0015] Optionally, in the above-mentioned electric motorcycle hub assembly, the electric motorcycle flat plug assembly is a double flat plug assembly;

[0016] A first flat plug fixing member for connecting to the electric motorcycle flat plug assembly is arranged on the outer wall of the second shell, and a second flat plug fixing member for connecting to the electric motorcycle flat plug assembly is arranged at one end of the planetary reducer away from the first shell.

[0017] Optionally, in the above-mentioned electric motorcycle hub assembly, the electric motorcycle flat plug assembly is a single flat plug assembly;

[0018] The electric motorcycle flat plug assembly is connected to the second shell.

[0019] Optionally, in the above-mentioned electric motorcycle hub assembly, the outer gear ring is rotatably disposed on the first shell through a bearing, and the first shell is provided with a first boss and a second boss, the first boss and the second boss are both annular, and the first boss is arranged on the inner ring of the second boss, and a bearing mounting groove for the bearing to be installed is formed between the first boss and the second boss, and the inner ring of the first boss is provided with a rotating shaft for mounting the planetary gear.

[0020] Optionally, in the above-mentioned electric motorcycle hub assembly, a brake assembly for braking the hub is provided on the disc motor or the planetary reducer or the electric motorcycle flat-plug assembly.

[0021] Optionally, in the above-mentioned electric motorcycle hub assembly, the disc motor is provided with a monitoring component for monitoring the operating status of the disc motor.

[0022] Optionally, in the above-mentioned electric motorcycle hub assembly, the disc motor is of a single-stator and single-rotor configuration. An electric motorcycle comprises the above-mentioned electric motorcycle hub assembly.

[0023] The electric motorcycle hub assembly provided by the utility model includes a wheel hub, a disc motor, a planetary reducer and an electric motorcycle flat plug assembly. The disc motor is arranged at the middle position of the wheel hub. The disc motor includes a power output shaft. The planetary reducer is arranged on the disc motor and includes a sun gear, a planetary gear and an outer gear ring. The planetary gear is transmission-connected between the sun gear and the outer gear ring, and the sun gear is transmission-connected to the power output shaft, and the outer gear ring is connected to the wheel hub. When the disc motor is started, the power output shaft drives the planetary gear to rotate, the planetary gear drives the outer gear ring to rotate, and the outer gear ring drives the wheel hub to rotate. The electric motorcycle flat plug assembly is connected to at least one of the disc motor and the planetary reducer, and is used to connect to the vehicle body.

[0024] Compared with the prior art, the electric motorcycle hub assembly provided by the utility model drives the hub through a drive combination structure of a disc motor and a planetary reducer, occupies little space, and can effectively reduce the volume of the electric motorcycle hub.

[0025] The electric motorcycle provided by the utility model includes the above-mentioned electric motorcycle hub assembly, so it also has the above-mentioned structure and beneficial effects. Other structures refer to the prior art and are not described here in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 The structure diagram of the first electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 1 ;

[0028] Figure 2 The structure diagram of the first electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 2 ;

[0029] Figure 3 The structure diagram of the first electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 3 ;

[0030] Figure 4 The structure diagram of the first electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 4 ;

[0031] Figure 5 The structure diagram of the first electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 5 ;

[0032] Figure 6 The structure diagram of the second electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 1 ;

[0033] Figure 7 The structure diagram of the second electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 2 ;

[0034] Figure 8 The structure diagram of the second electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 3 ;

[0035] Fig. 9 The structure diagram of the second electric motorcycle hub assembly disclosed in the embodiment of the utility model is as follows Figure 4 .

[0036] Among them, 100 is the wheel hub;

[0037] 200 is a disc motor, 210 is a first housing, 211 is a first boss, 212 is a second boss, 220 is a second housing, 221 is a second flat insert fixing member, 230 is a stator assembly, 240 is a rotor assembly, 250 is a power output shaft, and 260 is a monitoring component;

[0038] 300 is a planetary reducer, 301 is a sun gear, 302 is a planetary gear, 303 is an outer gear ring, 310 is an end cover, 311 is a first flat insert fixing member, and 320 is a reducer housing;

[0039] 400 is an electric motorcycle flat plug assembly;

[0040] 500 is a brake assembly. DETAILED DESCRIPTION

[0041] The core of the utility model is to disclose an electric motorcycle hub assembly to reduce the volume of the electric motorcycle hub.

[0042] Another core of the utility model is to disclose an electric motorcycle comprising the electric motorcycle hub assembly.

[0043] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0044] Combination Figure 1-Figure 3The electric motorcycle hub assembly disclosed in the utility model includes a hub 100, a disc motor 200, a planetary reducer 300 and an electric motorcycle flat plug assembly 400. The disc motor 200 is arranged at the middle position of the hub 100. The disc motor 200 includes a power output shaft 250. The planetary reducer 300 is arranged on the disc motor 200 and includes a sun gear 301, a planetary gear 302 and an outer gear ring 303. The planetary gear 302 is transmission-connected between the sun gear 301 and the outer gear ring 303, and the sun gear 301 is transmission-connected to the power output shaft 250, and the outer gear ring 303 is connected to the hub 100. When the disc motor 200 is started, the power output shaft 250 drives the planetary gear 302 to rotate, the planetary gear 302 drives the outer gear ring 303 to rotate, and the outer gear ring 303 drives the hub 100 to rotate. The electric motorcycle parallel plug assembly 400 is connected to at least one of the disc motor 200 and the planetary reducer 300, and is used to be connected to the vehicle body.

[0045] Compared with the prior art, the utility model drives the wheel hub 100 through a driving combination structure of a disc motor 200 and a planetary reducer 300, occupies a small space, and can effectively reduce the volume of the electric motorcycle wheel hub.

[0046] Specifically, the motor housing of the disc motor 200 includes a first housing 210 and a second housing 220, the planetary reducer 300 is arranged on the outer wall of the first housing 210, the second housing 220 is connected to the first housing 210, and an installation space is formed, the stator assembly 230 and the rotor assembly 240 (excluding the power output shaft 250) of the disc motor 200 are arranged in the installation space, the power output shaft 250 is connected to the rotor assembly 240, and can rotate together with the rotor assembly 240, the first end of the power output shaft 250 passes through the first housing 210, and is connected to the sun gear 301 in driving connection.

[0047] In order to brake the wheel hub 100, the electric motorcycle wheel hub assembly includes a brake assembly, specifically combined with Figure 4 and Fig. 9 The brake assembly can brake the disc motor 200 and thus brake the wheel hub 100 indirectly, or directly brake the wheel hub 100.

[0048] In one embodiment, in combination Figure 3-Figure 5 The second end of the power output shaft 250 passes through the second shell 220, and a brake assembly 500 is arranged on the outer wall of the second shell 220. The brake assembly 500 can brake the power output shaft 250. In this embodiment, the brake assembly 500 and the planetary reducer 300 are respectively arranged on both sides of the motor housing of the disc motor 200.

[0049] Specifically, the brake assembly 500 includes a brake pad and a caliper, Figure 4 and Figure 5A brake disc or a brake drum is provided at the second end of the power output shaft 250, and the brake disc or the brake drum is provided outside the motor housing, and the brake pad is provided on the outer wall of the second housing 220. The caliper can drive the brake pad to contact the brake disc or the brake drum to achieve friction braking, thereby limiting the rotation of the power output shaft 250 and achieving braking of the wheel hub 100.

[0050] In another embodiment, a brake assembly 500 is provided on the disc motor 200 or the planetary reducer 300 or the electric motorcycle parallel plug assembly 400 , and the brake assembly 500 can directly perform friction braking on the wheel hub 100 .

[0051] Exemplary, combined Figure 6 The brake assembly 500 includes a brake pad and a caliper. A brake disc or a brake drum is arranged on the side of the wheel hub 100 facing away from the planetary reducer 300. The brake pad and the caliper are arranged on the electric motorcycle flat plug assembly 400. The caliper can drive the brake pad to contact the brake disc or the brake drum to realize friction braking, thereby realizing the braking of the wheel hub 100.

[0052] In addition, a monitoring component 260 for monitoring the operating status of the disc motor 200 is provided in the second shell 220 (on the disc motor 200). Exemplarily, the monitoring component 260 can be a rotary transformer or a magnetic encoder, so as to measure and monitor the rotational speed of the power output shaft 250 and thereby obtain the rotational speed of the wheel hub 100.

[0053] When the electric motorcycle hub assembly is applied to a single rocker arm electric motorcycle, combined with Figure 6 and Figure 8 The electric motorcycle flat plug assembly 400 is a single flat plug assembly, and the electric motorcycle flat plug assembly 400 can be directly connected to the second housing 220 of the disc motor 200. Figure 6 and Figure 8 When the electric motorcycle hub assembly is applied to a double-rocker electric motorcycle, the electric motorcycle flat plug assembly 400 is a double flat plug assembly, and a first flat plug fixing member 311 for connecting the electric motorcycle flat plug assembly 400 is provided on the planetary reducer 300, and a second flat plug fixing member 221 for connecting the electric motorcycle flat plug assembly 400 is provided on the outer wall of the second shell 220, that is, the electric motorcycle flat plug assembly 400 needs to be connected and supported at both ends of the axial direction of the driving whole composed of the disc motor 200 and the planetary reducer 300.

[0054] The specific structure of the electric motorcycle flat plug assembly 400 and the fixing method thereof with the first flat plug fixing member 311 and the second flat plug fixing member 221 are both prior art and will not be described in detail here.

[0055] Combination Figure 7The reducer housing of the planetary reducer 300 includes a reducer casing 320 and an end cover 310. The reducer casing 320 is connected to the motor casing. An outer gear ring 303 is arranged between the end cover 310 and the reducer casing 320. The outer gear ring 303 is rotatably connected to the end cover 310 and the reducer casing 320 through two bearings. The first flat insert fixing member 311 is arranged on the side of the end cover 310 facing away from the motor casing.

[0056] In order to reduce the space occupied by the electric motorcycle hub assembly on the shaft, it is preferred that the reducer housing 320 and the second shell 220 of the planetary reducer 300 are configured as an integrated structure to reduce the wall thickness and minimize the space occupied.

[0057] Specifically, in one embodiment, in combination Figure 3 and Figure 8 A first boss 211 and a second boss 212 are provided on the first side of the first shell 210. The first boss 211 and the second boss 212 are both annular, and the first boss 211 is provided on the inner ring of the second boss 212. A bearing mounting groove is formed between the two. The inner ring of the first boss 211 is provided with the rotating shaft of each planetary gear 302, and the rotating shaft of each planetary gear 302 is fixed to the end cover 310. The planetary gear 302 is provided on the inner ring of the outer gear ring 303 and meshes with the inner ring teeth of the outer gear ring 303.

[0058] The disc motor 200 may specifically be a single-stator dual-rotor configuration or a single-rotor dual-stator configuration. In order to effectively reduce the volume of the electric motorcycle hub assembly, the disc motor 200 is preferably a single-stator single-rotor configuration.

[0059] The electric motorcycle disclosed in the utility model includes the above-mentioned electric motorcycle hub assembly, so it also has the above-mentioned structure and beneficial effects. Other structures refer to the prior art and are not described here in detail.

[0060] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. An electric motorcycle hub assembly, characterized in that: include: Hub (100); A disc-type motor (200) comprising a power output shaft (250); A planetary reducer (300) is arranged on the disc motor (200), comprising a sun gear (301), planetary gears (302) and an outer gear ring (303), wherein the planetary gear (302) is drivingly connected between the sun gear (301) and the outer gear ring (303), the sun gear (301) is drivingly connected to the power output shaft (250), and the outer gear ring (303) is connected to the wheel hub (100); The electric motor flat plug assembly (400) is connected to at least one of the disc motor (200) and the planetary reducer (300).

2. The electric motorcycle hub assembly according to claim 1, characterized in that: The motor housing of the disc-type motor (200) comprises: A first housing (210), the planetary reducer (300) being arranged on the first housing (210); The second housing (220) is connected to the first housing (210) and forms an installation space, wherein the stator assembly (230), the rotor assembly (240) and the power output shaft (250) of the disc motor (200) are all arranged in the installation space, and the first end of the power output shaft (250) passes through the first housing (210) and is drivingly connected to the sun gear (301).

3. The electric motorcycle hub assembly according to claim 2, characterized in that: The second end of the power output shaft (250) passes through the second housing (220), and a brake assembly (500) is provided on the outer wall of the second housing (220), and the brake assembly (500) is used to brake the second end of the power output shaft (250).

4. The electric motorcycle hub assembly according to claim 2, characterized in that: The electric motorcycle flat plug assembly (400) is a double flat plug assembly; A first flat-plug fixing member (311) for connecting to the electric motorcycle flat-plug assembly (400) is provided on the outer wall of the second housing (220), and a second flat-plug fixing member (221) for connecting to the electric motorcycle flat-plug assembly (400) is provided at one end of the planetary reducer (300) away from the first housing (210).

5. The electric motorcycle hub assembly according to claim 2, characterized in that: The electric motorcycle flat plug assembly (400) is a single flat plug assembly; The electric motorcycle flat plug assembly (400) is connected to the second housing (220).

6. The electric motorcycle hub assembly according to claim 2, characterized in that: The outer gear ring (303) is rotatably arranged on the first housing (210) via a bearing. The first housing (210) is provided with a first boss (211) and a second boss (212). The first boss (211) and the second boss (212) are both annular, and the first boss (211) is arranged on the inner ring of the second boss (212). A bearing mounting groove for the bearing to be installed is formed between the first boss (211) and the second boss (212). The inner ring of the first boss (211) is provided with a rotating shaft of the planetary gear (302).

7. The electric motorcycle hub assembly according to claim 1, characterized in that: The disc motor (200) or the planetary reducer (300) or the electric motorcycle flat plug assembly (400) is provided with a brake assembly (500) for braking the wheel hub (100).

8. The electric motorcycle hub assembly according to claim 1, characterized in that: The disc motor (200) is provided with a monitoring component (260) for monitoring the operating status of the disc motor (200).

9. The electric motorcycle hub assembly according to claim 1, characterized in that: The disc-type motor (200) is of a single-stator and single-rotor configuration.

10. An electric motorcycle, characterized in that: It comprises the electric motorcycle hub assembly as described in any one of claims 1-9.

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