CN215794299U - Booster structure of bicycle and moped - Google Patents
Booster structure of bicycle and moped Download PDFInfo
- Publication number
- CN215794299U CN215794299U CN202121601619.XU CN202121601619U CN215794299U CN 215794299 U CN215794299 U CN 215794299U CN 202121601619 U CN202121601619 U CN 202121601619U CN 215794299 U CN215794299 U CN 215794299U
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- bicycle
- power
- permanent magnet
- assisted
- shell
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Abstract
The utility model discloses a power-assisted structure of a bicycle and the power-assisted bicycle, wherein the power-assisted structure of the bicycle comprises a frame, a main shaft and a driving chain disc fixed on the main shaft; the spindle is fixed with the first gear; the second gear is meshed with the first gear; the power-assisted motor is fixed on the frame and provided with a motor shaft, and the motor shaft is connected with the second gear; the power-assisted bicycle is provided with the power-assisted structure. According to the power-assisted structure of the bicycle and the power-assisted bicycle, a motor of the power-assisted structure of the bicycle does not need to be provided with a speed reducer, and the bicycle is simple in structure, small in size and light in weight; the bicycle with the power assisting structure has a good power assisting effect when being installed and used conveniently.
Description
Technical Field
The utility model relates to the technical field of bicycles, in particular to a power assisting structure of a bicycle and a power assisting bicycle.
Background
The motor adopted by the conventional power-assisted bicycle is provided with a speed reducer, so that the structure is complex, and the power-assisted structure is large in size and heavy; the installation and the use effect of the power assisting structure are influenced.
Therefore, there is a need to solve the above technical problems.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a power-assisted structure of a bicycle and the power-assisted bicycle, wherein a motor of the power-assisted structure of the bicycle is not required to be provided with a speed reducer, and the power-assisted structure of the bicycle is simple in structure, small in size and light in weight; the bicycle with the power assisting structure has a good power assisting effect when being installed and used conveniently.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a helping hand structure of bicycle, includes frame, main shaft and fixes the initiative chain dish on the main shaft, still includes:
the first gear is fixed on the main shaft;
a second gear meshed with the first gear;
and the power-assisted motor is fixed on the frame and is provided with a motor shaft, and the motor shaft is connected with the second gear.
The motor of the power assisting structure of the bicycle does not need to be provided with a speed reducer, and the bicycle is simple in structure, small in size and light in weight.
Further, the first gear and the driving chain plate are of an integrated structure. The integrated structure is convenient to install.
The power-assisted motor is further provided with a shell, a stator assembly and a rotor assembly; the shell is provided with a first shell and a second shell, and a cavity is formed inside the first shell and the second shell; the stator assembly is fixed between the first shell and the second shell; the rotor assembly is provided with a first permanent magnet and a second permanent magnet, the first permanent magnet and the second permanent magnet are positioned in the cavity, and the first permanent magnet and the second permanent magnet are respectively positioned at two sides of the stator assembly; the motor shaft penetrates through the shell, the stator assembly and the rotor assembly, and the motor shaft is fixedly connected with the rotor assembly.
The power-assisted motor is simple in structure and convenient to install and use.
The stator assembly is further a multilayer PCB, every two layers of PCBs are electrically connected, and a plurality of windings are integrated on the PCBs. The power-assisted motor adopts a PCB stator structure, and the winding is integrated on the PCB, so that an iron core is not needed, the weight is light, and the thickness is thin.
The rotor assembly further comprises a first fixing piece and a second fixing piece, the first fixing piece is positioned between the first shell and the first permanent magnet, and the second fixing piece is positioned between the second shell and the second permanent magnet;
the first fixing piece is fixedly connected with the first permanent magnet, and the first fixing piece is fixedly connected with the motor shaft; the second fixing piece is fixedly connected with the second permanent magnet, and the second fixing piece is fixedly connected with the motor shaft. The rotor subassembly sets up first permanent magnet and the second permanent magnet of the more convenient fixed of first mounting and second mounting.
Further set up first bearing between first casing and the motor shaft, set up the second bearing between second casing and the motor shaft. The rotor assembly drives the motor shaft to rotate through the first bearing and the second bearing.
A power-assisted bicycle comprises the power-assisted structure of the bicycle. The bicycle with the power assisting structure has a good power assisting effect when being installed and used conveniently.
Compared with the prior art, the utility model has the following technical advantages:
1. the motor of the power assisting structure of the bicycle does not need to be provided with a speed reducer, and the bicycle is simple in structure, small in size and light in weight;
2. the power-assisted motor of the power-assisted structure of the bicycle adopts a PCB stator structure, and the winding is integrated on the PCB, so that an iron core is not needed, the weight is light, and the thickness is thin;
3. the power-assisted structure of the bicycle is convenient for the modification of a common bicycle;
4. the bicycle with the power assisting structure has a good power assisting effect when being installed and used conveniently.
Drawings
FIG. 1 is a perspective view of a bicycle power assist structure according to the present invention;
FIG. 2 is a perspective view of the assist motor of FIG. 1;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is an exploded view of fig. 2.
Detailed Description
The utility model will be described in further detail below with reference to embodiments shown in the drawings.
Referring to fig. 1 to 5, an embodiment of a bicycle power assisting structure of the present invention is shown.
As shown in fig. 1, the booster structure of the bicycle includes a frame (not shown), a main shaft 100, and a drive sprocket 500 fixed to the main shaft 100; the spindle further comprises a first gear 300, a second gear 400 and a power-assisted motor 200, wherein the first gear 300 is fixed on the spindle 100; the second gear 400 is engaged with the first gear 300; the booster motor 200 is fixed on the frame, the booster motor 200 has a motor shaft 240, and the motor shaft 240 is connected to the second gear 400.
The motor of the power assisting structure of the bicycle does not need to be provided with a speed reducer, and the bicycle is simple in structure, small in size and light in weight.
As shown in fig. 1, the first gear 300 and the drive chain plate 500 are an integral structure. The integrated structure is convenient to install.
As shown in fig. 2 and 3, the assisting motor 200 is further provided with a housing 210, a stator assembly 220 and a rotor assembly 230; the housing 210 has a first case 211 and a second case 212, the first case 211 and the second case 212 forming a cavity therein; stator assembly 220 is secured between first housing 211 and second housing 212. As shown in fig. 4, the rotor assembly 230 has a first permanent magnet 231 and a second permanent magnet 232, the first permanent magnet 231 and the second permanent magnet 232 are located in the cavity, and the first permanent magnet 231 and the second permanent magnet 232 are respectively located at two sides of the stator assembly 220; the motor shaft 240 passes through the housing 210, the stator assembly 220, and the rotor assembly 230, and the motor shaft 240 is fixedly coupled to the rotor assembly 230.
The power-assisted motor is simple in structure and convenient to install and use.
As shown in fig. 4 and 5, the stator assembly 220 is a multi-layer PCB board, each two layers of PCB boards are electrically connected, and the PCB board is integrated with a plurality of windings. The power-assisted motor adopts a PCB stator structure, and the winding is integrated on the PCB, so that an iron core is not needed, the weight is light, and the thickness is thin.
As shown in fig. 4 and 5, the rotor assembly 230 further includes a first fixing member 233 and a second fixing member 234, the first fixing member 233 is located between the first housing 211 and the first permanent magnet 231, and the second fixing member 234 is located between the second housing 212 and the second permanent magnet 232.
As shown in fig. 4, the first fixing member 233 is fixedly connected to the first permanent magnet 231, and the first fixing member 233 is fixedly connected to the motor shaft; the second fixing member 234 is fixedly connected to the second permanent magnet 232, and the second fixing member 234 is fixedly connected to the motor shaft. The rotor assembly 230 is more conveniently provided with the first and second fixing members 233 and 234 to fix the first and second permanent magnets 231 and 232.
As shown in fig. 4, a first bearing 250 is provided between the first housing 211 and the motor shaft 240, and a second bearing 260 is provided between the second housing 212 and the motor shaft 240. The rotor assembly 230 rotates the motor shaft 240 via the first bearing 250 and the second bearing 260.
A power-assisted bicycle comprises the power-assisted structure of the bicycle. The bicycle with the power assisting structure has a good power assisting effect when being installed and used conveniently.
The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; those skilled in the art should understand that they can easily make various changes and modifications to the disclosed embodiments without departing from the scope of the present invention.
Claims (6)
1. The utility model provides a helping hand structure of bicycle, includes frame, main shaft and fixes the initiative chain dish on the main shaft which characterized in that still includes:
the first gear is fixed on the main shaft;
a second gear meshed with the first gear;
the power-assisted motor is fixed on the frame and provided with a motor shaft, and the motor shaft is connected with the second gear; the power-assisted motor is also provided with a shell, a stator component and a rotor component; the shell is provided with a first shell and a second shell, and a cavity is formed inside the first shell and the second shell; the stator assembly is fixed between the first shell and the second shell; the rotor assembly is provided with a first permanent magnet and a second permanent magnet, the first permanent magnet and the second permanent magnet are positioned in the cavity, and the first permanent magnet and the second permanent magnet are respectively positioned at two sides of the stator assembly; the motor shaft penetrates through the shell, the stator assembly and the rotor assembly, and the motor shaft is fixedly connected with the rotor assembly.
2. The booster structure for a bicycle according to claim 1, wherein the first gear and the drive sprocket are of a unitary construction.
3. The bicycle booster structure according to claim 1, wherein the stator assembly is a multi-layer PCB board, each two layers of the PCB boards are electrically connected, and a plurality of windings are integrated on the PCB board.
4. The booster structure for a bicycle of claim 1, wherein the rotor assembly further comprises a first fixing member and a second fixing member, the first fixing member being located between the first housing and the first permanent magnet, the second fixing member being located between the second housing and the second permanent magnet;
the first fixing piece is fixedly connected with the first permanent magnet, and the first fixing piece is fixedly connected with the motor shaft; the second fixing piece is fixedly connected with the second permanent magnet, and the second fixing piece is fixedly connected with the motor shaft.
5. The booster structure for a bicycle according to claim 1, wherein a first bearing is provided between the first housing and the motor shaft, and a second bearing is provided between the second housing and the motor shaft.
6. A power-assisted bicycle, characterized by comprising the power-assisted structure of the bicycle of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121601619.XU CN215794299U (en) | 2021-07-14 | 2021-07-14 | Booster structure of bicycle and moped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121601619.XU CN215794299U (en) | 2021-07-14 | 2021-07-14 | Booster structure of bicycle and moped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215794299U true CN215794299U (en) | 2022-02-11 |
Family
ID=80182005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121601619.XU Active CN215794299U (en) | 2021-07-14 | 2021-07-14 | Booster structure of bicycle and moped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215794299U (en) |
-
2021
- 2021-07-14 CN CN202121601619.XU patent/CN215794299U/en active Active
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