CN220430403U - Centrally-mounted motor and power-assisted bicycle - Google Patents
Centrally-mounted motor and power-assisted bicycle Download PDFInfo
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- CN220430403U CN220430403U CN202321811904.3U CN202321811904U CN220430403U CN 220430403 U CN220430403 U CN 220430403U CN 202321811904 U CN202321811904 U CN 202321811904U CN 220430403 U CN220430403 U CN 220430403U
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- 238000011084 recovery Methods 0.000 description 4
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Abstract
The utility model discloses a centrally-mounted motor and a booster bicycle, which are used for assisting the booster of the bicycle and comprise the following components: angular velocity detection module, gyroscope attitude angle sensor module, main control module, circuit board and motor, angular velocity detection module corresponds the output setting of motor, angular velocity detection module, gyroscope attitude angle sensor module and main control module install on the circuit board, main control module is connected with angular velocity detection module, gyroscope attitude angle sensor module and motor electricity respectively, angular velocity detection module and gyroscope attitude angle sensor module send the parameter of acquisition for main control module, main control module regulating motor exports, thereby realize the auxiliary power assisted to the bicycle. According to the utility model, through the angular speed detection module and the gyroscope attitude angle sensor module, the main control module can identify the intention of a rider and the current road condition so as to adjust the output of the motor, thereby providing assistance for a bicycle and improving the riding experience of a user.
Description
Technical Field
The utility model relates to the technical field of bicycles, in particular to a centrally-mounted motor and a booster bicycle.
Background
Two sensor schemes are mainly adopted for the electric power-assisted bicycle in the market at present; the first is to adopt a torque sensor scheme; according to the scheme, the force of a rider stepping on the pedal is sensed through the torque sensor, and judgment is carried out according to the magnitude of manpower, so that the riding intention of the rider is understood, and corresponding assistance support is provided; however, the torque sensor is costly, complex in installation process, and is easily damaged.
The second is to use a speed sensor scheme; according to the scheme, the requirement of a rider is judged through the rotation speed of the main shaft, the higher the rotation speed is, the stronger the power assisting is, the lower the rotation speed is, and the weaker the power assisting is; while such a setting may provide some assistance support, it does not fully match the actual needs of the rider; for example, when a rider climbs a slope, the pedaling frequency and speed can be reduced, but the motor defaults to the rider not needing too strong assistance; and when the bicycle descends, the pedal frequency and the pedal speed can be increased, and the motor can provide larger power assistance, so that a rider can feel faster and faster. Therefore, this solution has certain drawbacks, such as not being able to identify road conditions well and to perceive the intent of the rider. To solve this problem, some electrically assisted bicycles using speed sensors may be put into electric-only mode. However, this design has deviated from the original purpose of electric assist because the purpose of electric assist bicycles is to provide assistance on a human basis rather than to completely replace human power. In addition, the speed sensor is generally installed at the five-way position, and the installation mode leads to the easy damage of the sensor when exposed.
Disclosure of Invention
The utility model aims to provide a centrally-mounted motor and a power-assisted bicycle, and aims to solve the problems that the existing power-assisted bicycle is high in cost, complex in installation process and easy to damage, or cannot effectively and well identify road conditions, sense intention of a rider and the like.
The embodiment of the utility model provides a centrally-mounted motor, which is used for assisting a bicycle, and comprises the following components: angular velocity detection module, gyroscope attitude angle sensor module, main control module, circuit board and motor, angular velocity detection module corresponds the output setting of motor, angular velocity detection module, gyroscope attitude angle sensor module and main control module install on the circuit board, main control module respectively with angular velocity detection module gyroscope attitude angle sensor module and motor electricity are connected, angular velocity detection module with gyroscope attitude angle sensor module sends the parameter of acquireing for main control module, main control module regulating motor exports, thereby realizes right supplementary helping hand of bicycle.
Further, a motor hall sensor for detecting the running state of the motor is arranged on the motor, and the motor hall sensor is electrically connected with the main control module.
Further, the method further comprises the following steps: the speed reduction box is in driving connection with the output end of the motor, the angular speed detection module is arranged corresponding to the output end of the speed reduction box, and the circuit board is arranged in the speed reduction box.
Further, a shell is arranged on the reduction gearbox, a containing cavity is arranged in the shell, and the circuit board is arranged in the containing cavity.
Further, the shell is made of aluminum alloy.
Further, the motor is a three-phase brushless motor.
Further, the method further comprises the following steps: and the display device is electrically connected with the main control module.
Further, the parameters include: and the gyroscope attitude angle sensor module detects gradient parameters and the angular speed detection module detects speed parameters.
Further, under the condition that the speed parameters are the same, the larger the gradient parameters are, the larger the power assisting output by the motor is controlled by the main control module; under the condition that the gradient parameters are the same, the larger the speed parameter is, the larger the power assisting output by the motor is controlled by the main control module.
The embodiment of the utility model also provides a booster bicycle, which comprises: the middle motor.
The utility model discloses a centrally-mounted motor and a booster bicycle, which are used for assisting the booster of the bicycle and comprise the following components: angular velocity detection module, gyroscope attitude angle sensor module, main control module, circuit board and motor, angular velocity detection module corresponds the output setting of motor, angular velocity detection module, gyroscope attitude angle sensor module and main control module install on the circuit board, main control module is connected with angular velocity detection module, gyroscope attitude angle sensor module and motor electricity respectively, angular velocity detection module and gyroscope attitude angle sensor module send the parameter of acquisition for main control module, main control module regulating motor exports, thereby realize the auxiliary power assisted to the bicycle. According to the utility model, through the angular velocity detection module and the gyroscope attitude angle sensor module, the main control module can identify the intention of a rider and the current road condition so as to regulate the motor to perform corresponding output, thereby providing assistance for a bicycle, improving the riding experience of a user, reducing the cost due to the fact that the sensors adopted by the angular velocity detection module and the gyroscope attitude angle sensor module are relatively cheap, and the sensor has the advantages of simple installation process, high installation efficiency, low failure rate and long service life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a center motor according to the present embodiment;
fig. 2 is an exploded view of the center motor of the present embodiment;
fig. 3 is a schematic structural diagram of a circuit board according to the present embodiment;
fig. 4 is a schematic structural diagram of a control system of the center motor according to the present embodiment;
the reference numerals are as follows:
1. an angular velocity detection module; 2. a gyroscope attitude angle sensor module; 3. a main control module; 4. a circuit board; 5. a motor; 6. a reduction gearbox; 7. a housing.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1-4, the present embodiment provides a center motor for assisting a bicycle, including: angular velocity detection module 1, gyroscope attitude angle sensor module 2, main control module 3, circuit board 4 and motor 5, angular velocity detection module 1 corresponds motor 5 'S output setting, angular velocity detection module 1, gyroscope attitude angle sensor module 2 and main control module 3 install on circuit board 4, main control module 3 is connected with angular velocity detection module 1, gyroscope attitude angle sensor module 2 and motor 5 electricity respectively, angular velocity detection module 1 and gyroscope attitude angle sensor module 2 send the parameter of acquisition to main control module 3, main control module 3 adjusts motor 5 and exports, thereby realize the auxiliary power assisting to the bicycle, wherein, the model of angular velocity detection module 1 is S0-8 encapsulated NS4159, main control module 3' S model is TQFP64.
According to the embodiment, through the angular velocity detection module 1 and the gyroscope attitude angle sensor module 2, the main control module 3 can identify the intention of a rider and the current road condition, so that the adjusting motor 5 can perform corresponding output, and further power assistance is provided for a bicycle, riding experience of a user is improved, meanwhile, the price of the sensor adopted by the angular velocity detection module 1 and the gyroscope attitude angle sensor module 2 is relatively low, the cost is reduced, the installation process is simple, the installation efficiency is high, the failure rate is low, the service life is long, the angular velocity detection module 1, the gyroscope attitude angle sensor module 2 and the main control module 3 are installed on the same circuit board 4, signal transmission among the modules is more stable due to the integrated design, signal loss or interference caused by overlong circuits or external environments is avoided, and the reliability of the sensor is improved.
Wherein the parameters include: the gradient parameter detected by the gyroscope attitude angle sensor module 2 and the speed parameter detected by the angular speed detection module 1.
The working principle is as follows: when the bicycle is in an uphill state, the gyroscope attitude angle sensor module 2 detects a corresponding gradient parameter and transmits the gradient parameter to the main control module 3, the main control module 3 controls the motor 5 to provide corresponding assistance according to the gradient parameter, under the condition that the speed parameter is the same, the larger the gradient parameter (i.e. the steeper the uphill road), the main control module 3 controls the motor 5 to output larger assistance, meanwhile, under the condition that the gradient parameter is the same, the main control module 3 can judge whether a user needs more assistance at the moment according to the speed parameter transmitted by the angular speed detection module 1, if the speed parameter is increasing, the assistance of the motor 5 is increased, and if the speed parameter is decreasing, the assistance of the motor 5 is reduced; when the bicycle is in a downhill state, the gyroscope attitude angle sensor module 2 detects a corresponding gradient parameter and transmits the gradient parameter to the main control module 3, the main control module 3 properly reduces the power assistance of the motor 5 according to the gradient parameter and the speed parameter transmitted by the angular speed detection module 1, under the condition that the speed parameter is the same, the smaller the gradient parameter of the downhill (namely, the steeper the downhill road), the more the power assistance is reduced by the main control module 3, and under the condition that the gradient parameter is the same, the smaller the speed parameter of the downhill is, the more the power assistance is reduced by the main control module 3.
Referring to fig. 1, the center motor 5 further includes: the reducing gear box 6, the reducing gear box 6 is connected with the output drive of motor 5, the output that the reducing gear box 6 was corresponding to angular velocity detection module 1 sets up, circuit board 4 sets up in reducing gear box 6, wherein, the output of reducing gear box 6 passes through chain drive with the bicycle main shaft, consequently this embodiment sets up the output that angular velocity detection module 1 corresponds reducing gear box 6 for angular velocity detection module 1 can detect the rotational speed of bicycle main shaft, the output setting that angular velocity detection module 1 corresponds reducing gear box 6 compares in angular velocity detection module 1 corresponds the bicycle main shaft setting, avoided losing or disturbing because the signal that the circuit overlength or external environment lead to, the reliability of sensor has been improved, the circuit is shorter, the installation degree of difficulty has been reduced, and assembly efficiency has been promoted.
Further, be provided with shell 7 (as shown in fig. 2) on reducing gear box 6, be provided with one in the shell 7 and hold the chamber, circuit board 4 sets up in holding the intracavity, and the shell 7 of this embodiment sets up the damage of having avoided the foreign object to circuit board 4 and sensor on it, has promoted the reliability and the life of sensor, has reduced the replacement cost.
The shell 7 is made of plastic or metal, preferably, the shell 7 is made of aluminum alloy, the strength of the aluminum alloy is high, the impact resistance of foreign objects is stronger, the density is low, the weight of the shell 7 is reduced, and the carrying and the transportation are convenient; the corrosion resistance is strong, the corrosion of internal metal can be effectively prevented, and the service life of the shell 7 is prolonged; the price of the raw materials of the aluminum alloy is relatively moderate, and compared with other metal materials, the aluminum alloy has higher cost performance and is suitable for large-scale production and application.
In order to realize the accurate control to the output power of the motor 5, a motor hall sensor for detecting the running state of the motor 5 is arranged on the motor 5 of the embodiment, and the motor hall sensor is electrically connected with the main control module 3.
In the embodiment, the motor 5 is a brushless motor, and no electric spark is generated in the running process of the brushless motor, so that the interference of the electric spark on remote control wireless equipment can be reduced; the brushless motor has no brush, the friction force is small during operation, and the operation is smooth, so that the generated noise is low; and the brushless motor has long service life and low maintenance cost.
Further, the motor 5 is a three-phase brushless motor; compared with other brushless motors, the three-phase brushless motor adopts three-phase alternating current, so that electric energy can be fully utilized, the running efficiency of the motor is improved, and the motor is more suitable for the application scene of bicycle assistance; and the three-phase brushless motor adopts three-phase winding, and control accuracy and response speed are higher, can provide better helping hand of riding for the user to promote user's experience of riding.
In this embodiment, still be provided with the group battery, the group battery is connected with the main control module 3 electricity, and the setting of group battery can be for the power supply of main control module 3 to can be connected through the electricity of main control module 3 with angular velocity detection module 1, gyroscope attitude angle sensor module 2 and motor hall sensor, thereby for angular velocity detection module 1, gyroscope attitude angle sensor module 2 and motor hall sensor power supply.
In this embodiment, a display device is further provided, and the display device is electrically connected with the main control module 3, where the display device can obtain corresponding parameters through the main control module 3 and display the parameters, such as power supply electric quantity, endurance mileage, vehicle speed, and the like, where the display device may be a vehicle head display screen.
The main control module 3 of this embodiment further includes a motor control module, and the motor control module that is used for controlling the motor in the main control module 3 is professional to promote the control speed to the motor and to the control accuracy of motor.
Further, this embodiment still is provided with electric power recovery unit, and electric power recovery unit is connected with the group battery electricity, and when gyroscope attitude angle sensor module 2 detected that the bicycle is in downhill path state, it carries out corresponding electric power recovery to open electric power recovery unit to store in the group battery.
The damping device is further arranged in the embodiment, so that serious damage to the sensor caused by vibration in the riding process can be avoided through the damping device, the service life of the sensor is further prolonged, and the maintenance cost is reduced.
The embodiment also provides a booster bicycle, comprising: the center motor of the above embodiment.
In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.
Such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A centrally-mounted motor for assisting a bicycle, comprising: angular velocity detection module, gyroscope attitude angle sensor module, main control module, circuit board and motor, angular velocity detection module corresponds the output setting of motor, angular velocity detection module, gyroscope attitude angle sensor module and main control module install on the circuit board, main control module respectively with angular velocity detection module gyroscope attitude angle sensor module and motor electricity are connected, angular velocity detection module with gyroscope attitude angle sensor module sends the parameter of acquireing for main control module, main control module regulating motor exports, thereby realizes right supplementary helping hand of bicycle.
2. The centrally-mounted motor according to claim 1, wherein a motor hall sensor for detecting the running state of the motor is arranged on the motor, and the motor hall sensor is electrically connected with the main control module.
3. The center motor according to claim 1, further comprising: the speed reduction box is in driving connection with the output end of the motor, the angular speed detection module is arranged corresponding to the output end of the speed reduction box, and the circuit board is arranged in the speed reduction box.
4. A mid-motor as claimed in claim 3, wherein the reduction gearbox is provided with a housing, a housing cavity is provided in the housing, and the circuit board is provided in the housing cavity.
5. The center motor of claim 4, wherein the housing is aluminum alloy.
6. The center motor of claim 1, wherein the motor is a three-phase brushless motor.
7. The center motor according to claim 1, further comprising: and the display device is electrically connected with the main control module.
8. The center motor of claim 1, wherein the parameters include: and the gyroscope attitude angle sensor module detects gradient parameters and the angular speed detection module detects speed parameters.
9. The center motor according to claim 8, wherein the larger the gradient parameter is, the larger the power assisting is controlled by the main control module to be outputted by the motor under the condition that the speed parameters are the same; under the condition that the gradient parameters are the same, the larger the speed parameter is, the larger the power assisting output by the motor is controlled by the main control module.
10. A power assisted bicycle, comprising: a mid-motor as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321811904.3U CN220430403U (en) | 2023-07-11 | 2023-07-11 | Centrally-mounted motor and power-assisted bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321811904.3U CN220430403U (en) | 2023-07-11 | 2023-07-11 | Centrally-mounted motor and power-assisted bicycle |
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| Publication Number | Publication Date |
|---|---|
| CN220430403U true CN220430403U (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321811904.3U Active CN220430403U (en) | 2023-07-11 | 2023-07-11 | Centrally-mounted motor and power-assisted bicycle |
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| Country | Link |
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| CN (1) | CN220430403U (en) |
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2023
- 2023-07-11 CN CN202321811904.3U patent/CN220430403U/en active Active
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