Single-rocker-arm speed reduction inner rotor motor
By introducing gear transmission mechanism and built-in controller design into the internal rotor motor, the problem of insufficient torque of the existing motor is solved, and higher torque output and production cost are achieved, which is suitable for the use needs of mountainous and hilly areas.
Patent Information
- Application Number
- CN202420838215.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing internal rotor motor has less torque during use and cannot meet the needs of mountainous and hilly areas.
A single rocker arm reduction internal rotor motor is designed. By inserting a gear transmission mechanism into the rotor, including a gear box cover, a driving gear and a gear box, torque transmission is increased, and the controller body is built into the second hanging ear. Inside, save connection line length and reduce production costs.
It improves the torque output of the motor, enhances the applicability to mountainous areas and hilly areas, while reducing production costs and improving the practicality of the equipment.
Smart Images
Figure CN222169540U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a single rocker arm speed reduction inner rotor motor. Background Art
[0002] An internal rotor motor is an electric motor whose rotor (also known as the rotating part) is located inside the motor and the stator (also known as the stationary part) is located outside the rotor. When used to drive the wheel hub in the electric vehicle industry, the rotor shaft of the motor is directly connected to the wheel hub, and the torque is usually transmitted to the wheel hub through a mechanical connection (such as a bearing).
[0003] Although this driving method in the prior art is simple and direct and reduces the number of transmission elements, the motor has a small torque during use and cannot be used in mountainous and hilly areas, and thus cannot meet the needs of more users. Therefore, it is urgent to design a single-rocker-arm reduction inner rotor motor with greater torque. Utility Model Content
[0004] The utility model aims to solve the shortcoming in the prior art that the torque is small and the use requirements of more users cannot be met, and proposes a single rocker arm reduction inner rotor motor.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A single-rocker-arm reduction inner-rotor motor comprises a wheel hub and a second lifting ear, a controller body is fixedly mounted on one side of the second lifting ear, a through hole is opened on the surface of one end of the second lifting ear, a coil stator is fixedly embedded on the inner surface of the through hole, a rotor is rotatably mounted in the coil stator, the interior of the rotor is a hollow structure, a bearing is embedded in the rotor, a gear transmission mechanism is provided on one side of the rotor, the gear transmission mechanism comprises a gear box cover, a driving gear and a gear box body, the gear box body is fixedly mounted on one side of the second lifting ear, the driving gear is rotatably mounted on one side of the gear box cover, one side of the driving gear is fixedly mounted to the rotation center of one side of the rotor through a connecting shaft, the gear box cover is fixedly mounted to one side of the gear box body through bolts, and the wheel hub is rotatably mounted on one side of the gear box cover.
[0007] As a further technical solution of the utility model, a caliper is fixedly installed on the top of the gear box cover, a disc brake disc, a flange and an ABS disc are fixedly installed on one side of the gear box cover, and a retaining spring and a nut are provided on the other side of the gear box cover.
[0008] As a further technical solution of the utility model, a tire is sleeved on the surface of the wheel hub, and a controller wiring harness, a negative power supply electrode and a positive power supply electrode are fixedly installed on the top of the controller body.
[0009] As a further technical solution of the utility model, a first lifting ear is fixedly installed on one side of the top of the second lifting ear, and a shock absorber is fixedly installed on the surface of the first lifting ear.
[0010] As a further technical solution of the utility model, a box cover is detachably fixedly mounted on one side of the second lifting ear, and a decorative cover is embedded on one side of the box cover.
[0011] As a further technical solution of the present invention, a decorative piece is fixedly mounted on the other end of the second hanging ear.
[0012] The beneficial effects of the utility model are:
[0013] By providing a gear box cover, a driving gear and a gear box body to form a gear transmission mechanism, the wheel hub can be driven by the gear transmission mechanism when the rotor rotates, thereby increasing the torque of the equipment so that the equipment can better meet the needs of users. By arranging the controller body to be placed in the second lifting ear, the length of the motor connection line and the battery connection line can be effectively saved, thereby reducing the production cost. At the same time, when the wind blows on the controller body during driving, it is beneficial to accelerate the heat dissipation of the controller body and improve the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the exploded structure of a single rocker arm reduction inner rotor motor proposed by the utility model;
[0015] Figure 2 The utility model is a schematic diagram of the structure of a single rocker arm speed reduction inner rotor motor.
[0016] In the figure: 1. tire; 2. wheel hub; 3. caliper; 4. disc brake disc; 5. retaining spring; 6. nut; 7. gear box cover; 8. drive gear; 9. gear box body; 10. shock absorber; 11. first lifting ear; 12. coil stator; 13. rotor; 14. box cover; 15. decorative cover; 16. flange; 17. ABS disc; 18. decorative part; 19. controller wiring harness; 20. negative power supply; 21. positive power supply; 22. second lifting ear; 23. controller body; 24. bearing. DETAILED DESCRIPTION
[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0020] Please see attached Figure 1 and attached Figure 2 A single rocker arm reduction inner rotor motor comprises a wheel hub 2 and a second lifting ear 22, a controller body 23 is fixedly mounted on one side of the second lifting ear 22, a through hole is opened on one end surface of the second lifting ear 22, a coil stator 12 is fixedly embedded on the inner surface of the through hole, a rotor 13 is rotatably mounted in the coil stator 12, the interior of the rotor 13 is a hollow structure, a bearing 24 is embedded in the rotor 13, a gear transmission mechanism is arranged on one side of the rotor 13, the gear transmission mechanism comprises a gear box cover 7, a driving gear 8 and a gear box body 9, the gear box body 9 is fixedly mounted on one side of the second lifting ear 22, the driving gear 8 is rotatably mounted on one side of the gear box cover 7, one side of the driving gear 8 is fixedly mounted to the rotation center of one side of the rotor 13 through a connecting shaft, the gear box cover 7 is fixedly mounted to one side of the gear box body 9 through bolts, and the wheel hub 2 is rotatably mounted on one side of the gear box cover 7.
[0021] When in use, a gear transmission mechanism is formed by setting a gear box cover 7, a driving gear 8 and a gear box body 9. When the rotor 13 rotates, the wheel hub 2 can be driven by the gear transmission mechanism, thereby increasing the torque of the device, so that the device can better meet the needs of users. By setting the controller body 23 to be built into the second hanging ear 22, the length of the motor connecting wire and the battery connecting wire can be effectively saved, thereby reducing the production cost. At the same time, the wind blows the controller body 23 during driving, which is beneficial to accelerate the heat dissipation of the controller body 23 and improves the practicability of the device.
[0022] In this embodiment, a caliper 3 is fixedly installed on the top of the gear box cover 7, a disc brake disc 4, a flange 16 and an ABS disc 17 are fixedly installed on one side of the gear box cover 7, a retaining ring 5 and a nut 6 are provided on the other side of the gear box cover 7, a tire 1 is sleeved on the surface of the wheel hub 2, a controller wiring harness 19, a negative power supply electrode 20 and a positive power supply electrode 21 are fixedly installed on the top of the controller body 23, a first lifting ear 11 is fixedly installed on one side of the top of the second lifting ear 22, a shock absorber 10 is fixedly installed on the surface of the first lifting ear 11, a box cover 14 is detachably fixedly installed on one side of the second lifting ear 22, a decorative cover 15 is embedded on one side of the box cover 14, and a decorative part 18 is fixedly installed on the other end of the second lifting ear 22.
[0023] When in use, the motor body and the controller body are integrated into one design, which greatly shortens the distance between the controller body 23 and related electronic components, saves connecting wires, and reduces processing costs. At the same time, this setting can also reduce interference sources and improve the stability of the equipment during use.
[0024] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: when in use, the motor body and the vehicle swing arm are designed in an integrated manner, a gear transmission mechanism is provided, and the controller body 23 is built into the second lifting ear 22, which effectively saves the length of the motor connection line and the battery connection line, reduces the production cost, and at the same time, the wind blows the controller body 23 during driving, which is conducive to accelerating the heat dissipation of the controller body 23 and improving the practicality of the equipment. After the deceleration is generated by the gear transmission mechanism, the torque acting on the wheel hub increases several times, making it higher than the general wheel hub motor torque under the same power condition, and improving the applicability of the equipment to mountainous and hilly areas.
[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A single rocker arm reduction inner rotor motor, comprising a wheel hub (2) and a second lifting lug (22), characterized in that: A controller body (23) is fixedly mounted on one side of the second lifting ear (22); a through hole is formed on one end surface of the second lifting ear (22); a coil stator (12) is fixedly embedded on the inner surface of the through hole; a rotor (13) is rotatably mounted in the coil stator (12); the rotor (13) has a hollow structure inside; a bearing (24) is embedded in the rotor (13); a gear transmission mechanism is provided on one side of the rotor (13); the gear transmission mechanism comprises a gear box cover (7), a driving gear (8) and a gear box body (9); the gear box body (9) is fixedly mounted on one side of the second lifting ear (22); the driving gear (8) is rotatably mounted on one side of the gear box cover (7); one side of the driving gear (8) is fixedly mounted to the rotation center of one side of the rotor (13) via a connecting shaft; the gear box cover (7) is fixedly mounted to one side of the gear box body (9) via bolts; and the wheel hub (2) is rotatably mounted on one side of the gear box cover (7).
2. A single rocker arm reduction inner rotor motor according to claim 1, characterized in that: A caliper (3) is fixedly mounted on the top of the gear box cover (7), a disc brake disc (4), a flange (16) and an ABS disc (17) are fixedly mounted on one side of the gear box cover (7), and a retaining spring (5) and a nut (6) are provided on the other side of the gear box cover (7).
3. The single rocker arm reduction inner rotor motor according to claim 1, characterized in that: The surface of the wheel hub (2) is sleeved with a tire (1), and the top of the controller body (23) is fixedly mounted with a controller wiring harness (19), a negative power supply electrode (20), and a positive power supply electrode (21).
4. The single rocker arm reduction inner rotor motor according to claim 1, characterized in that: A first lifting ear (11) is fixedly mounted on one side of the top of the second lifting ear (22), and a shock absorber (10) is fixedly mounted on the surface of the first lifting ear (11).
5. The single rocker arm reduction inner rotor motor according to claim 4, characterized in that: A box cover (14) is detachably fixedly mounted on one side of the second lifting ear (22), and a decorative cover (15) is embedded on one side of the box cover (14).
6. The single rocker arm reduction inner rotor motor according to claim 5, characterized in that: A decorative piece (18) is fixedly mounted on the other end of the second hanging ear (22).