CN215706910U - Auxiliary power-assisted mechanism and power-assisted bicycle - Google Patents
Auxiliary power-assisted mechanism and power-assisted bicycle Download PDFInfo
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- CN215706910U CN215706910U CN202121601802.XU CN202121601802U CN215706910U CN 215706910 U CN215706910 U CN 215706910U CN 202121601802 U CN202121601802 U CN 202121601802U CN 215706910 U CN215706910 U CN 215706910U
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- permanent magnet
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- motor shaft
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Abstract
The utility model discloses an auxiliary power-assisted mechanism and a power-assisted bicycle, wherein the auxiliary power-assisted mechanism comprises a frame, a driving chain disc, a driven chain disc and a chain, wherein the chain is arranged between the driving chain disc and the driven chain disc, and also comprises an auxiliary chain wheel and a power-assisted motor; the auxiliary chain wheel is pressed outside the chain; the power-assisted motor is fixed on the frame and is provided with a motor shaft, and the motor shaft is connected with the auxiliary chain wheel. According to the auxiliary power-assisted mechanism and the power-assisted bicycle, a motor of the auxiliary power-assisted mechanism is not required to be provided with a speed reducer, and the auxiliary power-assisted mechanism is simple in structure, small in size and light in weight; the bicycle with the power assisting mechanism has a good power assisting effect when the power assisting mechanism is convenient to mount and use.
Description
Technical Field
The utility model relates to the technical field of bicycles, in particular to an auxiliary power-assisted mechanism and a power-assisted bicycle.
Background
The motor adopted by the prior moped is provided with a reducer, so that the structure is complex, and the volume and the weight of a boosting mechanism are large; the installation and the use effect of the power assisting mechanism are influenced.
Therefore, there is a need to solve the above technical problems.
Disclosure of Invention
The utility model provides an auxiliary power-assisted mechanism and a power-assisted bicycle aiming at the technical problems, wherein a motor of the auxiliary power-assisted mechanism is not required to be provided with a speed reducer, and the auxiliary power-assisted mechanism has the advantages of simple structure, small volume and light weight; the bicycle with the power assisting mechanism has a good power assisting effect when the power assisting mechanism is convenient to mount and use.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides an auxiliary boosting mechanism, includes frame, drive chain dish, driven chain dish and chain, the chain is installed between drive chain dish and the driven chain dish, still includes:
an auxiliary sprocket pressed against the outside of the chain;
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 auxiliary chain wheel. The motor of the auxiliary power-assisted mechanism does not need to be provided with a speed reducer, and has the advantages of simple structure, small volume and light weight.
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 auxiliary power-assisted mechanism. The bicycle with the power assisting mechanism has a good power assisting effect when the power assisting mechanism is convenient to mount and use.
Compared with the prior art, the utility model has the following technical advantages:
1. the motor of the auxiliary power-assisted mechanism does not need to be provided with a speed reducer, and has simple structure, small volume and light weight;
2. the power-assisted motor of the auxiliary power-assisted mechanism adopts a PCB stator structure, and a winding is integrated on a PCB, so that an iron core is not needed, the weight is light, and the thickness is thin;
3. the auxiliary power-assisted mechanism is convenient for the modification of a common bicycle;
4. the bicycle with the power assisting mechanism has a good power assisting effect when the power assisting mechanism is convenient to mount and use.
Drawings
FIG. 1 is a perspective view of an auxiliary power unit 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.
As shown in fig. 1 to 5, the auxiliary power assisting mechanism of the present invention is an embodiment.
As shown in fig. 1, the auxiliary power assisting mechanism includes a frame (not shown), a driving chain plate 100, a driven chain plate 400, and a chain 500, wherein the chain 500 is installed between the driving chain plate 100 and the driven chain plate 400; the chain driving device further comprises an auxiliary chain wheel 300 and a power-assisted motor 200, wherein the auxiliary chain wheel 300 is pressed outside the chain 500; the power motor 200 is fixed on the frame, the power motor 200 has a motor shaft 240, and the motor shaft 240 is connected with the auxiliary sprocket 300.
The motor of the auxiliary power-assisted mechanism does not need to be provided with a speed reducer, and has the advantages of simple structure, small volume and light weight.
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 240; 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 240. 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 auxiliary power-assisted mechanism. The bicycle with the power assisting mechanism has a good power assisting effect when the power assisting mechanism is convenient to mount and use.
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 (5)
1. The utility model provides an auxiliary boosting mechanism, includes frame, initiative chain dish, driven chain dish and chain, the chain is installed between initiative chain dish and the driven chain dish, its characterized in that still includes:
an auxiliary sprocket pressed against the outside of the chain;
the power-assisted motor is fixed on the frame and provided with a motor shaft, and the motor shaft is connected with the auxiliary chain wheel; 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 auxiliary booster mechanism 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 the PCB board is integrated with a plurality of windings.
3. The auxiliary booster mechanism according to claim 1, wherein the rotor assembly further comprises a first fixing member and a second fixing member, the first fixing member is located between the first housing and the first permanent magnet, and the second fixing member is 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.
4. The auxiliary assist mechanism 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.
5. A power-assisted bicycle, characterized by comprising the auxiliary power-assisting mechanism of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121601802.XU CN215706910U (en) | 2021-07-14 | 2021-07-14 | Auxiliary power-assisted mechanism and power-assisted bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121601802.XU CN215706910U (en) | 2021-07-14 | 2021-07-14 | Auxiliary power-assisted mechanism and power-assisted bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215706910U true CN215706910U (en) | 2022-02-01 |
Family
ID=79986863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121601802.XU Active CN215706910U (en) | 2021-07-14 | 2021-07-14 | Auxiliary power-assisted mechanism and power-assisted bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215706910U (en) |
-
2021
- 2021-07-14 CN CN202121601802.XU patent/CN215706910U/en active Active
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