CN220743287U - Power generation module transmission system of booster bicycle - Google Patents
Power generation module transmission system of booster bicycle Download PDFInfo
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- CN220743287U CN220743287U CN202322389129.3U CN202322389129U CN220743287U CN 220743287 U CN220743287 U CN 220743287U CN 202322389129 U CN202322389129 U CN 202322389129U CN 220743287 U CN220743287 U CN 220743287U
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- planetary gear
- gear train
- permanent magnet
- magnet rotor
- transmission system
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000010248 power generation Methods 0.000 title claims abstract description 18
- 230000006698 induction Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses a power generation module transmission system of a power-assisted bicycle, which comprises a central shaft with a coaxial center, a planetary gear train combination formed by connecting at least two groups of planetary gear trains in series, a permanent magnet rotor and a coil stator, wherein the central shaft is connected with the coil stator in series; the middle shaft is in transmission fit with the permanent magnet rotor through a planetary gear train combination; when the center shaft transmits the rotation of the center shaft to the permanent magnet rotor through the planetary gear train combination, the rotation of the permanent magnet rotor makes the coil stator cut the magnetic induction line to generate current for power generation; the battery is charged through the power supply controller or the rectifier, and the battery supplies power to enable the motor to run, so that the burden of a rider is reduced, and the experience of the rider is improved.
Description
Technical Field
The utility model belongs to the field of booster bicycles.
Background
If the booster bicycle is ridden in a leisure mode on a flat road section or a downhill road section, the rich power of the pedals can be stored in a power generation mode, and then the booster bicycle can enter a power generation mode; if the power is on an uphill road section, the power generated can compensate the manpower output, and the overall riding comfort level is improved.
The bicycle has the following characteristics that when the pedals reach the sector b in front of the center shaft along a circular track in the riding process under the view angle along the axis direction of the center shaft as shown in fig. 3, the lower leg of the rider is in an optimal force application state from the ergonomic angle, so that the torque is applied to the center shaft smoothly by stepping downwards, and the center shaft is rich in torsion;
when the pedal reaches the sector a or the sector c above and below the center shaft, from the perspective of ergonomics, the lower leg of the rider cannot efficiently apply torsion to the center shaft through the pedal, and if the pedal is arranged at the sector a or the sector c, the pedal can bring a large burden to the rider when receiving electromagnetic resistance caused by power generation, so that the riding experience is reduced.
Disclosure of Invention
The utility model aims to: in order to overcome the defects in the prior art, the utility model provides a power generation module transmission system method of a power-assisted bicycle, which can improve the experience in a power generation mode.
The technical scheme is as follows: in order to achieve the purpose, the power generation module transmission system of the power assisted bicycle comprises a coaxial center shaft, a planetary gear train combination formed by connecting at least two groups of planetary gear trains in series, a permanent magnet rotor and a coil stator; the middle shaft is in transmission fit with the permanent magnet rotor through a planetary gear train combination; when the center shaft transmits the rotation of the center shaft to the permanent magnet rotor through the planetary gear train combination, the rotation of the permanent magnet rotor enables the coil stator to cut the magnetic induction line so as to generate current to generate electricity.
Further, the permanent magnet rotor is fixedly arranged on a rotor bracket, and the rotor bracket is in running fit with the middle shaft through a b bearing; the magnetic ring is fixedly arranged on the center shaft in a coaxial way, and the magnetic encoder corresponding to the magnetic ring is also included.
Further, the device also comprises a shell, wherein bearing holes at two ends of the shell are in running fit with the middle shaft through an a bearing; the planetary gear train combination, the permanent magnet rotor and the coil stator are all arranged in the shell.
Further, the planetary gear train combination comprises an a planetary gear train and a b planetary gear train which are matched in series.
Further, the planetary gear train a is composed of a planetary gear support a planetary gear, an inner gear ring a and a sun gear;
the planetary gear train b consists of a planetary gear bracket b, planetary gears b, an inner gear ring b and a sun gear b;
the sun gear and the planet gear support are coaxially fixed, so that the planet gear train a and the planet gear train b are connected in series.
Further, the axis of the planet wheel support a is in coaxial transmission fit with the center shaft through a one-way clutch.
Further, the annular gear a and the annular gear b are both fixed with the shell.
Further, the axis of the planet wheel support b is in rotary fit with the middle shaft through a bearing c; and b, the sun gear is fixedly connected with the rotor bracket through the coaxial center.
Further, the pedals on the cranks at the two ends of the middle shaft are respectively marked as a first pedal and a second pedal, and the first pedal and the second pedal are in central symmetry relative to the axis of the middle shaft under the view angle along the axis direction of the middle shaft.
Further, under the view angle along the axis direction of the central shaft, the central shaft is taken as the center to equally divide into four congruent sectors, namely an a sector, a b sector, a c sector and a d sector;
when the bicycle is ridden, the magnetic encoder monitors specific positions of the first pedal and the second pedal on the circular track in real time when the bicycle enters a pedal power generation mode;
when either the first pedal or the second pedal reaches the sector b in front of the center shaft along a circular track, the rotation of the permanent magnet rotor makes the coil stator cut the magnetic induction line to generate current to generate electricity, and the battery is charged through the power supply controller or the rectifier.
The beneficial effects are that: in the utility model, the structure can realize the following working states: when the first pedal or the second pedal reaches the sector b along the circular track, the rotation of the permanent magnet rotor makes the coil stator cut the magnetic induction line to generate current for generating electricity, and the battery is charged through the power supply controller or the rectifier; when the first pedal or the second pedal reaches the sector a or the sector c along the circular track, a power-assisted mode is started to play a role in assisting, so that the burden of a rider in the state is reduced, the experience of the rider is improved, and the riding process is more stable and smooth.
Drawings
FIG. 1 is a first embodiment;
FIG. 2 is a second embodiment;
fig. 3 is an axial view of the five-way axis.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The power generation module transmission system of the power assisted bicycle as shown in the attached figures 1 to 3 comprises a coaxial center shaft 4, a planetary gear train combination formed by connecting at least two groups of planetary gear trains in series, a permanent magnet rotor 18 and a coil stator 19; the center shaft 4 is in transmission fit with the permanent magnet rotor 18 through a planetary gear train combination, and the planetary gear train combination plays a role in doubling the transmission ratio; when the center shaft 4 transmits the rotation of the center shaft to the permanent magnet rotor 18 through the planetary gear train combination, the rotation of the permanent magnet rotor 18 makes the coil stator 19 cut the magnetic induction line to generate current for power generation; as shown in fig. 1 is a first embodiment: in such an embodiment, the permanent magnet rotor 18 is an inner rotor.
A second embodiment is shown in fig. 2: in this embodiment, the permanent magnet rotor 18 is an outer rotor.
The center shaft 4 is synchronously provided with a bicycle output chain wheel for outputting to a hub by a chain, the scheme mainly discusses a transmission structure of a power generation part, and a conventional basic structure of an electric power assisting module in a power assisting bicycle is characterized in that assistance is applied to a rear wheel or a front wheel by a motor, so that the burden of a user is reduced.
The device also comprises a shell 12, wherein bearing holes at two ends of the shell 12 are in running fit with the middle shaft 4 through an a bearing 16; the planetary gear train combination, permanent magnet rotor 18 and coil stator 19 are all within the housing 12. The permanent magnet rotor 18 is fixedly arranged on the rotor bracket 17, and the rotor bracket 17 is in running fit with the middle shaft 4 through a b bearing 21; the center shaft 4 is fixedly provided with a magnetic ring 14 on the same axis, and also comprises a magnetic encoder 15 corresponding to the magnetic ring 14, wherein the magnetic encoder 15 is fixed in the shell 12.
The planetary gear train combination comprises an a planetary gear train and a b planetary gear train which are matched in series, and the transmission ratio of the a planetary gear train and the b planetary gear train can be increased in a multiplied way after the a planetary gear train and the b planetary gear train are matched, so that the rotating speed of the middle shaft 4 is amplified for the permanent magnet rotor 18, and the specific structure is as follows:
the a planetary gear train consists of an a planetary gear bracket 9, an a planetary gear 7, an a annular gear 6 and an a sun gear 32; the b planetary gear train consists of a b planetary gear bracket 8, a b planetary gear 20, a b annular gear 31 and a b sun gear 13; the a sun gear 32 is coaxially fixed with the b planet carrier 8, so that the a and b planetary gear trains are connected in series. The axis of the planet wheel support 9 is in coaxial transmission fit with the middle shaft 4 through a one-way clutch 33, and the one-way clutch 33 can prevent the middle shaft 4 from reversing to drag the planetary gear train combination.
The a ring gear 6 and the b ring gear 31 are both fixed to the housing 12. The axis of the planet wheel support 8 is in rotary fit with the middle shaft 4 through a c bearing 11; and b, the sun gear 13 is fixedly connected with the rotor bracket 17 in a coaxial manner.
As shown in fig. 3, the pedals on the cranks at two ends of the central shaft 4 are respectively marked as a first pedal 3.1 and a second pedal 3.2, and the first pedal 3.1 and the second pedal 3.2 are in central symmetry relative to the axis of the central shaft 4 under the view angle along the axis direction of the central shaft 4.
The working method of the power generation module transmission system of the booster bicycle comprises the following steps: in the process of rotating the middle shaft 4, the first pedal 3.1 and the second pedal 3.2 rotate around the middle shaft 4 along a circular track 2 in the circumferential direction; in the process of rotating the center shaft 4, the magnetic ring 14 rotates synchronously with the rotor, and the magnetic encoder 15 monitors the relative motion state of the stator and the rotor in real time through the rotation position of the magnetic ring 14;
under the view angle along the axis direction of the center shaft 4, an upper congruent sector area, a front sector area, a lower sector area and a rear sector area are equally divided by taking the center shaft 4 as a center, and the upper congruent sector area, the front sector area, the lower sector area and the rear sector area are respectively marked as an a sector area, a b sector area, a c sector area and a d sector area; the four dividing lines adjacent to the sector a, the sector b, the sector c and the sector d are respectively a first dividing line 1.1, a second dividing line 1.2, a third dividing line 1.3 and a fourth dividing line 1.4;
during riding, when any one of the first pedal 3.1 or the second pedal 3.2 reaches the b sector area in front of the middle shaft 4 along the circular track 2, the lower leg of the rider is in an optimal force application state from the ergonomics, so that torque is easily applied to the middle shaft 4 by downwards stepping the first pedal 3.1 or the second pedal 3.2, and therefore when any one of the first pedal 3.1 or the second pedal 3.2 reaches the b sector area in front of the middle shaft 4 along the circular track 2, the force applied to the first pedal 3.1 or the second pedal 3.2 by the lower leg of the rider is rich, and the riding experience of the rider cannot be greatly influenced by generating a part of the rich torque received by the middle shaft 4;
when the first pedal 3.1 or the second pedal 3.2 reaches the a sector area or the c sector area above and below the middle shaft 4 along the circular track 2, from the perspective of ergonomics, the lower leg of the rider cannot efficiently apply torsion to the middle shaft 4 through the first pedal 3.1 or the second pedal 3.2, and if the first pedal 3.1 or the second pedal 3.2 is positioned at the a sector area or the c sector area, the permanent magnet rotor 18 also bears electromagnetic resistance caused by power generation, so that a larger burden is brought to the rider, and the riding experience is reduced;
based on the above analysis, the following protocol was made: when the bicycle is ridden, the pedal power generation mode is entered, the magnetic encoder 15 monitors the relative motion state of the stator and the rotor in real time through the rotation position of the magnetic ring 14;
when any one of the first pedals 3.1 or the second pedals 3.2 reaches the b sector area in front of the central shaft 4 along the circular track 2, the lower leg is in an optimal force application state, so that the central shaft 4 is driven to rotate smoothly by downwards stepping the first pedals 3.1 or the second pedals 3.2, the rotating speed of the central shaft 4 is output to the permanent magnet rotor 18 after being subjected to multistage speed change and amplification by the planetary gear train combination, the rotation of the permanent magnet rotor 18 enables the coil stator 19 to cut a magnetic induction line to generate current to generate electricity, and the battery is charged by the power supply controller or the inverse rectifier; in this state, the permanent magnet rotor 18 receives counter electromotive force electromagnetic resistance;
when the first pedal 3.1 or the second pedal 3.2 reaches the sector a or the sector c above and below the middle shaft 4 along the circular track 2, the lower leg of the rider cannot efficiently apply torsion to the middle shaft 4 through the first pedal 3.1 or the second pedal 3.2; under this state, the battery is through the reverse electric power module of giving electric power module with electric current output of power controller, and helping hand motor module initiatively applys helping hand to rear wheel or front wheel, and then reduces the burden of riding person under this state to improve riding person's experience.
The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.
Claims (8)
1. Power generation module transmission system of booster bicycle, its characterized in that: comprises a center shaft (4), a planetary gear train combination, a permanent magnet rotor (18) and a coil stator (19); the middle shaft (4) is in transmission fit with the permanent magnet rotor (18) through a planetary gear train combination; when the center shaft (4) transmits the rotation of the center shaft to the permanent magnet rotor (18) through the planetary gear train combination, the rotation of the permanent magnet rotor (18) enables the coil stator (19) to cut the magnetic induction line so as to generate current to generate electricity; the middle shaft (4) is provided with a magnetic ring (14) and also comprises a magnetic encoder (15) corresponding to the magnetic ring (14).
2. The power assisted bicycle power module transmission system of claim 1, wherein: the planetary gear train combination comprises an a planetary gear train and a b planetary gear train which are matched in series.
3. The power assisted bicycle power module transmission system of claim 2, wherein: the planetary gear train a is composed of a planetary gear support a (9), planetary gears a (7), an inner gear ring a (6) and a sun gear a (32);
the b planetary gear train consists of a b planetary gear bracket (8), a b planetary gear (20), a b annular gear (31) and a b sun gear (13);
the sun gear (32) and the planet gear carrier (8) are coaxially fixed, so that the planet gear train a and the planet gear train b are connected in series.
4. A power assisted bicycle power module transmission system as claimed in claim 3, wherein: the axis of the planet wheel support (9) is in coaxial transmission fit with the middle shaft (4) through a one-way clutch (33).
5. The power assisted bicycle power module transmission system of claim 4, wherein: the device also comprises a shell (12), wherein bearing holes at two ends of the shell (12) are in running fit with the middle shaft (4) through an a bearing (16); the planetary gear train combination, the permanent magnet rotor (18) and the coil stator (19) are all arranged in the shell (12).
6. The power assisted bicycle power module transmission system of claim 5, wherein: the inner gear ring (6) and the inner gear ring (31) are both fixed with the shell (12).
7. The power assisted bicycle power module transmission system of claim 6, wherein: the permanent magnet rotor (18) is fixedly arranged on a rotor support (17), and the axis of the b planet wheel support (8) is in running fit with the center shaft (4) through a c bearing (11); and the sun gear (13) is fixedly connected with the rotor bracket (17) in a coaxial manner.
8. The power assisted bicycle power module transmission system of claim 7, wherein: the pedals on the cranks at two ends of the middle shaft (4) are respectively marked as a first pedal (3.1) and a second pedal (3.2), and the first pedal (3.1) and the second pedal (3.2) are in central symmetry relative to the axis of the middle shaft (4) under the view angle along the axis direction of the middle shaft (4);
under the view angle along the axis direction of the center shaft (4), the center shaft (4) is taken as the center to divide equally into four congruent sectors, namely an a sector, a b sector, a c sector and a d sector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322389129.3U CN220743287U (en) | 2023-09-04 | 2023-09-04 | Power generation module transmission system of booster bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322389129.3U CN220743287U (en) | 2023-09-04 | 2023-09-04 | Power generation module transmission system of booster bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220743287U true CN220743287U (en) | 2024-04-09 |
Family
ID=90560610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322389129.3U Active CN220743287U (en) | 2023-09-04 | 2023-09-04 | Power generation module transmission system of booster bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220743287U (en) |
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2023
- 2023-09-04 CN CN202322389129.3U patent/CN220743287U/en active Active
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