CN211766090U - Electric bicycle and motor thereof - Google Patents
Electric bicycle and motor thereof Download PDFInfo
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- CN211766090U CN211766090U CN201922028758.7U CN201922028758U CN211766090U CN 211766090 U CN211766090 U CN 211766090U CN 201922028758 U CN201922028758 U CN 201922028758U CN 211766090 U CN211766090 U CN 211766090U
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Abstract
The application is applicable to the technical field of electronics, and provides an electric bicycle and a motor thereof, wherein the motor comprises a motor controller arranged in the motor; the motor controller is electrically connected with the motor through a connector; the motor controller comprises a power driving module and a control module, and the motor comprises a stator, a rotor and an encoder module; the power driving module is connected with the control module, and encoder module, power driving module and control module pass through the electricity and connect the integration and install on the PCB board on the support of stator, through setting up motor controller inside the motor, utilize shorter pencil can realize the signal transmission between motor controller and encoder, the motor phase line. Therefore, the length of an extra structural part and a connecting wire harness of the motor controller can be effectively reduced, and the manufacturing cost is further reduced. Meanwhile, the crosstalk can be reduced, the control precision is improved, the whole bicycle runs more reliably, and the problems of high control difficulty and low control precision of the motor of the conventional electric bicycle are solved.
Description
Technical Field
The application belongs to the technical field of electronics, especially relates to an electric bicycle and motor thereof.
Background
At present, an electric bicycle whole factory on the market generally purchases a motor and a motor controller from a motor manufacturer and a motor controller manufacturer respectively, and then the motor and the motor controller are installed on a whole bicycle respectively so as to achieve the purpose of control. And the Hall sampling line and the power line need to be transmitted through a longer wire harness, and stronger signal crosstalk exists in the transmission process, so that the control difficulty of the motor is increased, and the control precision is reduced.
In conclusion, the existing driving system of the electric bicycle has the problems of complex installation process, complex wiring harness connection, high design cost of a control system, high control difficulty and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the application provides an electric bicycle and a motor thereof, so as to solve the problems that the installation process of a driving system of the existing electric bicycle is complicated, and the connection of a wire harness is complicated, and further the design cost of a control system is high and the control difficulty is large.
A first aspect of the present application provides an electric machine comprising a machine controller disposed within the electric machine;
the motor controller is electrically connected with the motor through a connector;
the motor controller comprises a power driving module and a control module, and the motor comprises a stator, a rotor and an encoder module;
the power driving module is connected with the control module, and the encoder module, the power driving module and the control module are electrically connected and integrated on a PCB and are installed on a bracket of the stator.
Further, the power driving module comprises a U-phase driving module, a V-phase driving module and a W-phase driving module;
the control module is respectively connected with the U-phase driving module, the V-phase driving module and the W-phase driving module.
Further, the encoder module is electrically connected with the control module through a PCB board.
Further, the encoder module employs an inductive encoder.
Furthermore, the PCB is connected with a power supply through a wire, and the encoder module, the power driving module and the control module are powered by the power supply.
Furthermore, the encoder module is connected and communicated with the control module through a three-phase sampling line or a serial peripheral interface.
Further, the motor phase line is introduced into the PCB.
A second aspect of the present application provides an electric bicycle, which includes a battery module, a vehicle control module, a system power module, an intelligent instrument module, a charging module, and the motor of the first aspect;
the battery module is respectively and electrically connected with the whole vehicle control module, the charging module, the motor and the system power module, the whole vehicle control module is respectively and electrically connected with the system power module, the intelligent instrument module, the charging module and the motor, the charging module is connected with the battery module, and the system power module is electrically connected with the intelligent instrument module;
the battery module is used for doing electric bicycle provides the power, whole car control module is used for right electric bicycle controls, system power module is used for carrying out voltage conversion to the power that battery module provided and provides operating voltage for whole car control module and intelligent instrument module after, intelligent instrument module is used for showing electric bicycle's running state, the module of charging is used for doing battery module charges, the motor is used for the basis control command of whole car control module moves.
Further, whole car control module passes through CAN bus or RS485 bus output control instruction extremely battery module intelligent instrument module and the module of charging, battery module passes through CAN bus or RS485 bus with received control instruction transmission extremely the motor.
Further, the motor is a servo motor.
The application provides a pair of electric bicycle and motor thereof, through setting up motor controller inside the motor, utilize connector connection motor and motor controller, realize motor and motor controller's signal transmission through board level connector, can reduce pencil length effectively, reduce and crosstalk, improve control accuracy, solve present electric bicycle's motor and have the problem that the control degree of difficulty is big, control accuracy is low.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an electric machine according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an electric machine according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of an electric bicycle according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
The embodiment of the application aims at solving the problems that the installation process of the motor of the existing electric bicycle is complex, the wiring harness is connected redundantly and complexly, the design cost of a control system is high, and the control difficulty is large, the electric bicycle and the motor thereof are provided, the motor controller is arranged in the motor, the signal transmission between the motor controller and the encoder and between motor phase lines can be realized by using a shorter wiring harness, the extra structural part of the motor controller and the length of the connecting wiring harness can be effectively reduced, and the manufacturing cost is further reduced. Meanwhile, the crosstalk can be reduced, the control precision is improved, the whole bicycle runs more reliably, and the problems of high control difficulty and low control precision of the motor of the conventional electric bicycle are solved.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
As shown in fig. 1, the present embodiment provides a motor 10, the motor 10 including a motor controller 20 disposed inside the motor 10;
the motor controller 20 includes a power drive module 21 and a control module 22, and the motor includes a stator 11, a rotor 12, and an encoder module 13.
The power driving module 21 is connected with the control module 22, the encoder module 13, the power driving module 21 and the control module 22 are integrated on the PCB 19 and mounted on the bracket of the stator 11, the encoder module 13 is electrically connected with the control module 22, and the rotor 12 is in communication connection with the encoder module 13.
In practical applications, the fixed part of the motor is called a stator (stator), on which a pair of dc-excited stationary main poles are mounted; the rotating part is called as a rotor (rotor), namely an armature core, an armature winding is arranged on the rotor, induced electromotive force is generated after the rotor is electrified and serves as a rotating magnetic field, and electromagnetic torque is generated to perform energy conversion, so that the motor rotates by a corresponding angle, and displacement is further realized.
In a specific application, the encoder module comprises a servo motor encoder, and the servo motor encoder is a sensor which is arranged on a servo motor and used for measuring the position of a magnetic pole and the rotation angle and the rotation speed of the servo motor.
In this embodiment, the motor is a servo motor, and the servo motor is mainly positioned by pulses, that is, when the servo motor receives a pulse signal, the servo motor rotates by an angle corresponding to 1 pulse, thereby realizing displacement. The rotor in the servo motor is a permanent magnet, a U/V/W three-phase power controlled by a power driving module 21 of a motor controller 20 forms an electromagnetic field, the rotor rotates under the action of the magnetic field, meanwhile, a signal is fed back to a control module 22 of the motor controller 20 through an encoder module 13 arranged on a stator, and the control module 22 compares the feedback signal with a target value (given by a control module of the whole vehicle) so as to adjust the rotating angle of the rotor and enable the whole vehicle to move to a target state.
Specifically, the motor controller 20 is electrically connected to the motor phase line through a short connection harness, so as to reduce the length of the harness and reduce signal crosstalk.
Specifically, the encoder module 13 and the motor controller 20 are electrically connected by making the motor controller 20 and the encoder module 13 on the same PCB, and the rotation angle and the rotation speed of the motor are transmitted to the control module 22 by communicating through a three-phase sampling line or a serial peripheral interface.
Specifically, the motor controller 20 collects the state of the motor 10 through the encoder module 13 and controls the motion state (rotation speed and angle) of the rotor 12 of the motor 10 through the power driving module 21. Specifically, the encoder connection will collect and transmit rotor position information to the motor controller.
In this embodiment, the integrated PCB board 19 is connected to a power source through a wire, and the power source supplies power to the power driving module 21, the control module 22, and the encoder module 13.
As an implementation manner of this embodiment, the encoder module employs an inductive encoder.
Fig. 2 shows a motor 10 according to another embodiment of the present application, and unlike the previous embodiment, as shown in fig. 2, the power driving module 21 includes a U-phase driving module 211, a V-phase driving module 212, and a W-phase driving module 213.
The control module 22 is connected to the U-phase drive module 211, the V-phase drive module 212, and the W-phase drive module 213, respectively.
The U-phase driving module 211, the V-phase driving module 212, and the W-phase driving module 213 are respectively connected to the U/V/W phases of the motor 10 through PCB boards.
The encoder module 13 communicates with the control module 22 through a three-phase sampling line or a serial peripheral interface, the rotating angle and the rotating speed of the rotor are calculated through the relative positions of the code disc and the rotor, then the angle and the rotating speed are transmitted to the control module, the control module compares the angle and the rotating speed of the motor with a target value (given by a control module of the whole vehicle), and then outputs three-phase driving signals to be respectively transmitted to the U-phase driving module 211, the V-phase driving module 212 and the W-phase driving module 213, so that the U-phase driving module 211, the V-phase driving module 212 and the W-phase driving module 213 generate U/V/W three-phase electricity to form an electromagnetic field, further the rotating angle of the rotor is adjusted, and the whole vehicle moves to a.
In a specific application, the motor controller is connected with the motor and the encoder by placing the motor controller in the motor and adopting a short wiring harness. And then improve motor controller's protectiveness, reduce connecting wire harness and installation space, reduce cost, reduce the possibility that the encoder received the interference, improve control accuracy and performance, make whole car operation more reliable.
The motor that this embodiment provided, through setting up motor controller inside the motor, utilize connector connection motor and motor controller, realize motor and motor controller's signal transmission through shorter pencil, can reduce pencil length effectively, improve motor controller's protectiveness, reduce connection pencil and installation space, reduce cost, reduce the possibility that the encoder received the interference, improve control accuracy and performance, it is more reliable to make the operation of whole car, it is loaded down with trivial details to have solved present electric bicycle's actuating system, the pencil is connected redundantly miscellaneous, control system design cost is high, the big scheduling problem of the control degree of difficulty.
Fig. 3 shows an electric bicycle 100 provided in an embodiment of the present application, and as shown in fig. 3, the electric bicycle 100 includes a battery module 110, a vehicle control module 120, a system power module 130, a smart meter module 140, a charging module 150, and a motor 160 provided in the previous embodiment.
The battery module 110 is electrically connected with the vehicle control module 120, the charging module 150, the motor 160 and the system power module 130, respectively, the vehicle control module 120 is connected with the system power module 130, the intelligent instrument module 140, the charging module 150 and the motor 160, respectively, the charging module 150 is connected with the battery module 110, the system power module 130 is electrically connected with the intelligent instrument module 140,
the battery module 110 is used for providing power for the electric bicycle 100, the vehicle control module 120 is used for controlling the electric bicycle 100, the system power module 130 is used for performing voltage conversion on the power provided by the battery module 110 and then providing working voltage for the vehicle control module 120 and the intelligent instrument module 140, the intelligent instrument module 140 is used for displaying the running state of the electric bicycle 100, the charging module 150 is used for charging the battery module 110, and the motor 160 is used for moving according to a control instruction of the vehicle control module.
In this embodiment, the battery module 110 is a storage battery module, and can supply power to the electric bicycle, for example, directly supply power to the motor 160, or convert a dc high voltage into a dc low voltage through the system power module 130, so as to supply power to the vehicle control module 120 and the smart meter module 140. The vehicle control module 120 is a core control component of the vehicle, and CAN collect various signals (such as an acceleration sensor signal and a brake sensor signal), make corresponding judgment, control the actions of controllers (such as a motor controller) of other components, and manage the signals through a CAN bus or an RS485 bus. And scheduling, analyzing and controlling so as to realize the functions of driving control, energy optimization, brake feedback control and the like of the whole vehicle. The charging module is used for externally connecting a charging power supply, such as a power supply with an alternating voltage of 220V, and then converting the alternating voltage into a direct current of 48V or a direct current of 60V to charge the battery module. The smart meter module 140 can display various operation state information of the electric bicycle 100, such as remaining power, mileage, and speed.
In specific application, the vehicle control module 120 outputs a control command to the battery module 110, the smart meter module 140 and the charging module 150 through the CAN bus or the RS485 bus, and the battery module 110 transmits the received control command to the motor 160 through the CAN bus or the RS485 bus. Specifically, the control command is transmitted to a control module of a motor controller of the motor 160, and the control module outputs a pulse signal to control the motor to rotate.
As an implementation manner of this embodiment, the motor is a servo motor. The motor may be another motor, and is not limited herein.
In this embodiment, the motor includes a motor controller disposed inside the motor, which is described in detail with reference to the above embodiment and is not described herein again.
The embodiment provides an electric bicycle, with motor controller setting inside the motor, utilize connector connection motor and motor controller, realize motor and motor controller's signal transmission through board level connector, can reduce pencil length effectively, reduce crosstalk, improve control accuracy, improve motor controller's protectiveness, reduce connecting harness and installation space, reduce cost, reduce the possibility that the encoder received the interference, improve control accuracy and performance, make the operation of whole car more reliable.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. An electric motor comprising a motor controller disposed within the electric motor;
the motor controller is electrically connected with the motor through a connector;
the motor controller comprises a power driving module and a control module, and the motor comprises a stator, a rotor and an encoder module;
the power driving module is connected with the control module, and the encoder module, the power driving module and the control module are electrically connected and integrated on a PCB and are installed on a bracket of the stator.
2. The electric machine of claim 1, wherein the power drive modules comprise a U-phase drive module, a V-phase drive module, and a W-phase drive module;
the control module is respectively connected with the U-phase driving module, the V-phase driving module and the W-phase driving module.
3. The electric machine of claim 1, wherein the encoder module and the control module are electrically connected by a PCB board.
4. The electric machine of claim 1, wherein the encoder module employs an inductive encoder.
5. The motor of claim 1, wherein the PCB board is connected to a power source through a wire, the encoder module, the power drive module, and the control module being powered by the power source.
6. The electric machine of claim 2, wherein the encoder module is in communication with the control module via a three-phase sample line or a serial peripheral interface.
7. An electric machine according to claim 6, characterized in that the machine phase wires are introduced into the PCB board.
8. An electric bicycle, characterized in that the electric bicycle comprises a battery module, a whole vehicle control module, a system power supply module, an intelligent instrument module, a charging module and a motor according to any one of claims 1 to 6;
the battery module is respectively and electrically connected with the whole vehicle control module, the charging module, the motor and the system power module, the whole vehicle control module is respectively and electrically connected with the system power module, the intelligent instrument module, the charging module and the motor, the charging module is connected with the battery module, and the system power module is electrically connected with the intelligent instrument module;
the battery module is used for doing electric bicycle provides the power, whole car control module is used for right electric bicycle controls, system power module is used for carrying out voltage conversion to the power that battery module provided and provides operating voltage for whole car control module and intelligent instrument module after, intelligent instrument module is used for showing electric bicycle's running state, the module of charging is used for doing battery module charges, the motor is used for the basis control command of whole car control module moves.
9. The electric bicycle of claim 8, wherein the vehicle control module outputs a control command to the battery module, the smart meter module and the charging module through a CAN bus or an RS485 bus, and the battery module transmits the received control command to the motor through the CAN bus or the RS485 bus.
10. The electric bicycle of claim 8, wherein the motor is a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028758.7U CN211766090U (en) | 2019-11-21 | 2019-11-21 | Electric bicycle and motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028758.7U CN211766090U (en) | 2019-11-21 | 2019-11-21 | Electric bicycle and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211766090U true CN211766090U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922028758.7U Active CN211766090U (en) | 2019-11-21 | 2019-11-21 | Electric bicycle and motor thereof |
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| Country | Link |
|---|---|
| CN (1) | CN211766090U (en) |
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2019
- 2019-11-21 CN CN201922028758.7U patent/CN211766090U/en active Active
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