Combined internal variable-speed electric double-control motor

Abstract

The utility model discloses a combined internal variable speed electric double-control motor, which comprises a shell, a motor body, a conversion sleeve and a hub body, a stator coil is arranged on the outer surface of the motor body, a first through hole is arranged in the middle of the motor body, the conversion sleeve is arranged in the shell and fixedly nested in the first through hole, and the hub body is arranged in the shell. Bearing positions are arranged at the two ends of the conversion sleeve, an outer bearing and an inner bearing are arranged in the two bearing positions respectively, a groove is formed in one end of the conversion sleeve, a second through opening communicated with the groove is formed in the other end of the conversion sleeve, and the hub body is embedded in the groove and movably connected with the conversion sleeve through the inner bearing. The combined internal variable-speed electric double-control motor is advanced in design and reliable in operation, the hub body and the motor body can be combined together in a sleeved mode through supporting and connecting of the conversion sleeve, then the overall structure is more compact, the hub body can adjust the speed at different gears, the requirements of different road speed-setting riding can be met, and the combined internal variable-speed electric double-control motor is suitable for large-scale popularization and application. And the operation is relatively convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric motors, and in particular relates to a combined internal speed-changing electric dual-control motor. Background Art

[0002] Electric bicycles are a type of bicycle that uses batteries as auxiliary energy. The batteries provide kinetic energy to the drive motor, which drives the wheels of the electric bicycle to rotate, thus achieving the overall drive of the electric bicycle. Most of the rear-drive flywheels of electric bicycles or bicycles now use cassette flywheels or rotary flywheels for external speed change devices. In addition, the speed change devices are exposed to the outside world and are prone to rust and damage. Rainwater, dust, and grease easily stick to the devices, requiring frequent maintenance. In order to overcome the above-mentioned defects of external speed change devices, internal speed change electric dual-control motors have appeared on the market.

[0003] When the existing internal speed electric dual-control motor is used, the control methods of the hub body and the motor body are mostly used separately, which makes the operation of the hub body to adjust the speed at different gears more complicated. Therefore, it is urgent to design a combined internal speed electric dual-control motor to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a combined internal speed-changing electric dual-control motor to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a combined internal variable speed electric dual-control motor, comprising:

[0006] A housing, the housing comprising a left half housing and a right half housing that are fixedly connected;

[0007] A motor body, wherein the motor body is arranged inside the housing, a stator coil capable of electromagnetically driving the housing to rotate is arranged on the outer surface of the motor body, and a through opening 1 is arranged in the middle of the motor body;

[0008] A conversion sleeve, which is arranged inside the shell and fixedly nested in the first opening, bearing positions are arranged at both ends of the conversion sleeve, and an outer bearing and an inner bearing are arranged in the two bearing positions respectively, a groove is arranged at one end of the conversion sleeve and a second opening connected to the groove is arranged at the other end, and the conversion sleeve is movably connected to the left half shell through the outer bearing;

[0009] The hub body is nested in the groove and movably connected with the conversion sleeve through the inner bearing. The hub body is fixedly connected with the right half shell.

[0010] Furthermore, an annular notch is provided at the connection between the left half shell and the right half shell, and a plurality of permanent magnet steel rotors are evenly distributed on the inner wall of the annular notch.

[0011] Furthermore, the permanent magnet steel rotor is made of magnetic steel material, and the permanent magnet steel rotor is arranged corresponding to the stator coil.

[0012] Furthermore, a cable is provided at one end of the motor body, and one end of the cable extends to the outside of the shell and is connected to an external power source.

[0013] Furthermore, a hub axle is penetrated through the hub body, and the hub body is rotatably connected to the hub axle.

[0014] Furthermore, a speed regulating sleeve assembly is provided at one end of the hub shaft, and the other end extends outward and passes through the shell, the motor body and the conversion sleeve respectively, and the hub shaft coincides with the central axis of the shell, the motor body, the conversion sleeve and the hub body.

[0015] Furthermore, the speed regulating sleeve assembly includes a speed regulating sleeve and a ratchet assembly, an internal gear assembly and a sprocket drive assembly arranged in the speed regulating sleeve.

[0016] The technical effects and advantages of the utility model are as follows: the combined internal-speed electric dual-control motor has advanced design and reliable operation, and by arranging a conversion sleeve, an outer bearing and an inner bearing, the support and connection of the conversion sleeve enable the hub body and the motor body to be sleeved and combined together, thereby making the overall structure more compact, and the combined design enables the hub body to adjust the speed at different gears when the gear is adjusted through the speed regulating sleeve assembly, so that it can adapt to different road speed riding needs, and the operation is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model in the vertical direction.

[0019] In the figure: 100, shell; 101, left half shell; 102, right half shell; 103, annular notch; 104, permanent magnet rotor; 200, motor body; 201, stator coil; 202, port one; 203, cable; 300, conversion sleeve; 301, bearing position; 302, outer bearing; 303, inner bearing; 304, groove; 305, port two; 400, hub body; 401, hub shaft; 402, speed regulating sleeve assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] 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.

[0022] 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.

[0023] The utility model provides Figure 1-2 A combined internal speed electric dual-control motor as shown in the figure comprises:

[0024] The housing 100 includes a left half housing 101 and a right half housing 102 which are fixedly connected by bolts for easy assembly and disassembly;

[0025] The motor body 200 is disposed inside the housing 100. The outer surface of the motor body 200 is provided with a stator coil 201 capable of electromagnetically driving the housing 100 to rotate. A through hole 202 is provided in the middle of the motor body 200.

[0026] The conversion sleeve 300 is arranged inside the housing 100 and fixedly nested in the through-port 1 202. Bearing positions 301 are provided at both ends of the conversion sleeve 300. The two bearing positions 301 are respectively provided with an outer bearing 302 and an inner bearing 303. A groove 304 is provided at one end of the conversion sleeve 300 and a through-port 2 305 connected to the groove 304 is provided at the other end. The conversion sleeve 300 is movably connected to the left half housing 101 through the outer bearing 302. The conversion sleeve 300 supports the motor body 200 and can realize relative rotation between the conversion sleeve 300 and the housing 100.

[0027] The hub body 400 is nested in the groove 304 and is movably connected to the conversion sleeve 300 through the inner bearing 303, so that the hub body 400 can rotate relative to the conversion sleeve 300. The hub body 400 is fixedly connected to the right half shell 102, so that when the motor body 200 drives the shell 100 to rotate, the shell 100 can transmit power to the hub body 400 through the right half shell 102.

[0028] For example, see Figure 1-2 As shown, an annular notch 103 is provided at the connection between the left half shell 101 and the right half shell 102 , and a plurality of permanent magnet steel rotors 104 are evenly distributed on the inner wall of the annular notch 103 .

[0029] In this technical solution, the permanent magnet steel rotor 104 is fixedly connected to the housing 100. By energizing the stator coil 201, a magnetic field rotating around the geometric axis of the motor body 200 is formed around the stator coil 201. This magnetic field drives the permanent magnet steel rotor to move, thereby driving the housing 100 to rotate.

[0030] For example, see Figure 2 As shown, the permanent magnet steel rotor 104 is made of magnetic steel material, and the permanent magnet steel rotor 104 is arranged corresponding to the stator coil 201 .

[0031] In this technical solution, the permanent magnet steel rotor 104 is located in the rotating magnetic field generated by energizing the stator coil 201 , so that the rotating magnetic field can better drive the permanent magnet steel rotor 104 to move.

[0032] For example, see Figure 1-2 As shown, a cable 203 is provided at one end of the motor body 200 , and one end of the cable 203 extends to the outside of the housing 100 and is connected to an external power source.

[0033] In this technical solution, it is convenient to provide power support for the stator coil 201 .

[0034] For example, see Figure 1-2 As shown, a hub shaft 401 is provided through the hub body 400 , and the hub body 400 is rotatably connected to the hub shaft 401 .

[0035] In this technical solution, the relative rotation between the hub body 400 and the hub shaft 401 can be achieved.

[0036] For example, see Figure 2 As shown, a speed regulating sleeve assembly 402 is provided at one end of the hub shaft 401, and the other end extends outward and passes through the shell 100, the motor body 200 and the conversion sleeve 300 respectively. The hub shaft 401 coincides with the central axis of the shell 100, the motor body 200, the conversion sleeve 300 and the hub body 400.

[0037] In this technical solution, the hub shaft 401 connects the components in series and plays a supporting role. In addition, the shell 100 and the hub body 400 rotate coaxially on the hub shaft 401, making the movement of the combined internal speed electric dual-control motor more stable.

[0038] Exemplarily, the speed regulating sleeve assembly 402 includes a speed regulating sleeve and a ratchet assembly, an internal gear assembly and a sprocket drive assembly (not specifically shown in the figure) disposed in the speed regulating sleeve.

[0039] In this technical solution, the speed regulating sleeve drives the pawl and ratchet groove in the ratchet assembly to connect with different gears of the internal gear assembly, and the internal gear assembly outputs the power of different gears to the sprocket drive assembly. When human pedaling is required to be slow, the speed regulating sleeve on the hub body 400 is controlled to allow the pawl and ratchet groove in the ratchet assembly to be combined in a slow gear on the internal gear assembly, and the internal gear assembly outputs a slow gear to the sprocket drive assembly, thereby realizing human pedaling at a slow speed; when human pedaling is required to be at a medium speed, the speed regulating sleeve on the hub body 400 is controlled to allow the pawl and ratchet groove in the ratchet assembly to be combined in a slow gear on the internal gear assembly. When the motor body 200 is in electric direct drive mode, the motor directly drives the rear wheel of the bicycle to rotate; when the hub body 400 and the motor body 200 are combined into a human-electric dual drive mode, the human-electric dual drive simultaneously drives the rear wheel of the bicycle to rotate.

[0040] It should be noted that the structure of the speed regulating sleeve assembly 402 is not limited to the above-mentioned one. Any structure that can realize the bicycle gear shifting and speed regulation can be used in this combined internal speed electric dual-control motor. Since the bicycle gear shifting and speed regulation mechanism belongs to the existing technology and there are many types, it will not be described here.

[0041] Working principle: When the combined internal speed electric dual-control motor is in use, the force of a person pedaling is transmitted to the hub body 400, the hub body 400 is nested in the groove 304 and realizes relative rotation with the conversion sleeve 300 through the internal bearing 303, and the hub body 400 simultaneously drives the shell 100 to rotate, thereby driving the rear wheel of the bicycle to rotate, and the gear shifting of the bicycle is realized through the speed regulating sleeve assembly 402, and the stator coil 201 is energized through the cable 203, and the rotating magnetic field generated by the stator coil 201 drives the permanent magnet magnetic steel rotor 104 to rotate, and then transmits the power to the hub body 400 through the shell 100. The combined internal speed electric dual-control motor has an advanced design and reliable operation. By setting the conversion sleeve 300, the outer bearing 302 and the inner bearing 303, the support and connection of the conversion sleeve 300 enable the hub body 400 and the motor body 200 to be socketed and combined together, thereby making the overall structure more compact. In addition, the combined design enables the hub body 400 to adjust the speed at different gears when the gear is adjusted through the speed regulating sleeve assembly 402, which can adapt to different road speed riding needs and is relatively convenient to operate.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A combined internal speed electric dual-control motor, characterized in that: include: A housing (100), the housing (100) comprising a left half housing (101) and a right half housing (102) that are fixedly connected; A motor body (200), the motor body (200) being arranged inside the housing (100), the outer surface of the motor body (200) being provided with a stator coil (201) capable of electromagnetically driving the housing (100) to rotate, and a through opening (202) being provided in the middle of the motor body (200); A conversion sleeve (300), the conversion sleeve (300) being arranged inside the housing (100) and fixedly nested in the first opening (202), bearing positions (301) being provided at both ends of the conversion sleeve (300), outer bearings (302) and inner bearings (303) being provided in the two bearing positions (301), one end of the conversion sleeve (300) being provided with a groove (304) and the other end being provided with a second opening (305) communicating with the groove (304), the conversion sleeve (300) being movably connected to the left half housing (101) via the outer bearings (302); The hub body (400) is nested in the groove (304) and movably connected to the conversion sleeve (300) via the inner bearing (303). The hub body (400) is fixedly connected to the right half shell (102).

2. The combined internal speed electric dual-control motor according to claim 1 is characterized in that: An annular notch (103) is provided at the connection between the left half shell (101) and the right half shell (102), and a plurality of permanent magnet steel rotors (104) are evenly distributed on the inner wall of the annular notch (103).

3. The combined internal speed electric dual-control motor according to claim 2 is characterized in that: The permanent magnetic steel rotor (104) is made of magnetic steel material, and the permanent magnetic steel rotor (104) is arranged corresponding to the stator coil (201).

4. The combined internal speed electric dual-control motor according to claim 1 is characterized in that: A cable (203) is provided at one end of the motor body (200), and one end of the cable (203) extends to the outside of the housing (100) and is connected to an external power source.

5. The combined internal speed electric dual-control motor according to claim 1 is characterized in that: A hub shaft (401) is provided through the hub body (400), and the hub body (400) is rotatably connected to the hub shaft (401).

6. The combined internal speed-changing electric dual-control motor according to claim 5 is characterized in that: One end of the hub shaft (401) is provided with a speed regulating sleeve assembly (402), and the other end extends outward and passes through the housing (100), the motor body (200) and the conversion sleeve (300) respectively. The hub shaft (401) coincides with the central axis of the housing (100), the motor body (200), the conversion sleeve (300) and the hub body (400).

7. The combined internal speed electric dual-control motor according to claim 6 is characterized in that: The speed regulating sleeve assembly (402) comprises a speed regulating sleeve and a ratchet assembly, an internal gear assembly and a sprocket drive assembly arranged inside the speed regulating sleeve.

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