CN214984856U

CN214984856U - Electric car device with automatic feedback of loosening rotating handle

Info

Publication number: CN214984856U
Application number: CN202120185908.XU
Authority: CN
Inventors: 林锋
Original assignee: Taizhou Blue Electronic Technology Co ltd
Current assignee: Zhejiang Qima Technology Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-12-03
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses an electric car device of automatic repayment of pine commentaries on classics, belong to electric car device technical field, the unsatisfactory problem of electric car braking effect has been solved, its technical scheme main points are according to changeing carry out data signal acquisition to the potentiometre, through machine controller intelligent control, control reverse torsion brake and work, machine controller can detect the position that the electric car is changeed at present, and change the slope of rotating the acceleration of in-process and slowing down, machine controller just can know the will of riding passerby according to these two conditions so, control the speed that the vehicle stopped through increasing reverse torsion method.

Description

Electric car device with automatic feedback of loosening rotating handle

Technical Field

The utility model relates to an electric car device field especially relates to an electric car device of automatic repayment of pine commentaries on classics handle.

Background

Generally, electric vehicles such as electric bicycles and electric battery cars are provided with a faucet device, and the faucet device is provided with a brake device, a speed adjusting device and the like. The rider loosens and rotates the handle in the riding process, the bicycle can only slide according to inertia, if the rider wants to stop the bicycle quickly, the rider can only intervene by a mechanical brake mechanism, the service life of the mechanical brake is shortened, meanwhile, the riding feeling is poor, and the rider cannot be assisted to achieve the result wanted by the rider according to the will of the rider.

A reverse torque brake can be installed on a hub of an existing electric car and comprises a brake power supply and a brake motor, and after the brake power supply is connected with the brake motor, the brake motor can provide reverse torque, so that auxiliary braking can be performed by assisting manual mechanical braking. The motor controller is required to control under what conditions to operate, the regulating and controlling mechanism is not seen in the existing electric vehicle, and the regulating and controlling electric vehicle device capable of realizing even reliable and rapid braking has a good market prospect and is a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, solve the technical problem in the correlation technique to a certain extent at least, provide the tram device of an automatic repayment of pine commentaries on classics to reach and carry out reverse braking to the tram, improve the purpose of braking efficiency and user experience degree.

In order to solve the technical problem, the technical scheme of the utility model is that: an electric car device capable of automatically feeding back a loosening twist grip comprises a twist grip potentiometer, a signal sampling circuit, a motor controller, a timer, an isolating switch, a comparison circuit, a driving switch circuit, a braking power supply and a reverse torque brake in a twist grip mechanism, wherein the signal sampling circuit is connected with the twist grip potentiometer and used for acquiring a twist grip state signal;

the timer is connected with the motor controller and used for providing a clock signal;

the motor controller is connected with the signal sampling circuit and the timer and outputs an analog signal according to the handle-rotating state signal and the clock signal;

the comparison circuit is connected with the motor controller and used for outputting a judgment signal according to the analog signal;

the timer is connected to the output end of the comparison circuit through the isolating switch and is used for controlling the work of the driving switch circuit in a timing mode according to the judgment signal, and the driving switch circuit is connected to the brake power supply and a power supply line of the reverse torque brake and is used for controlling the work duration of the reverse torque brake.

As a specific aspect of the present invention, it may be preferable that: the comparison circuit comprises a comparator and a threshold setting unit, wherein the non-inverting input end of the comparator is connected with the motor controller to obtain an analog signal, the threshold setting unit is used for setting a threshold signal and inputting the threshold signal to the inverting input end of the comparator, and the comparator is used for outputting a judgment signal when the analog signal is higher than the threshold signal.

As a specific aspect of the present invention, it may be preferable that: the isolating switch is a photoelectric coupler.

As a specific aspect of the present invention, it may be preferable that: the timer is a three-five timing circuit.

As a specific aspect of the present invention, it may be preferable that: the driving switch circuit comprises a relay and a diode D12, a coil of the relay is connected to the output end of the timer, a diode D12 is connected to the coil of the relay in parallel in the reverse direction, and a normally open switch of the relay is connected to a power supply line of the braking power supply and the reverse torque brake in series.

The utility model discloses technical effect mainly embodies in following aspect: the signal on the potentiometer is collected, the state of the handle is collected, data processing is carried out by the motor controller, signal comparison and signal output can be carried out efficiently according to data output, the signal transmission is ensured to be stable and reliable through the isolating switch in the output process, and the time length for braking the reverse torque brake by the braking power supply is controlled by controlling the output time length of the timer.

Drawings

FIG. 1 is a schematic block diagram of an embodiment;

FIG. 2 is a schematic diagram of a comparison circuit in an embodiment;

fig. 3 is a schematic circuit diagram of a timer in an embodiment.

Reference numerals: 1. a handle-turning potentiometer; 2. a signal sampling circuit; 3. a motor controller; 4. a timer; 5. a timer; 6. an isolating switch; 7. a comparison circuit; 71. a comparator; 72. a threshold setting unit; 8. a drive switch circuit; 9. a braking power supply; 10. a reverse torque brake.

Detailed Description

The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical solutions of the present invention can be more easily understood and grasped, and cannot be construed as limiting the present invention.

The motor controller 3 can detect the position of the current handle rotating mechanism of the electric car, the handle rotating potentiometer 1 is arranged in the handle rotating mechanism, and the position of the handle rotating mechanism is changed, the voltage signal or the current signal output by the potentiometer changes, the change is a line-line relation, and the change can also be converted into a corresponding handle rotating angle, which is not specifically explained herein. In addition, the potentiometer 1 outputs signals, the signals can be accurately collected through the signal sampling circuit 2, and the motor controller 3 has simple signal processing capacity, namely, the conversion of signal intensity can be carried out, and the signals are output in an analog signal mode. The path of the analog signal output may be multiple and may be provided to different circuits.

Example (b):

in the embodiment of the scheme, the electric car device for automatically feeding back the loosening handle is shown in fig. 1 and comprises a handle potentiometer 1, a signal sampling circuit 2, a motor controller 3, a timer 4, a timer 5, an isolating switch 6, a comparison circuit 7, a driving switch circuit 8, a braking power supply 9 and a reverse torque brake 10 in a handle rotating mechanism.

The signal sampling circuit 2 is connected to the handle potentiometer 1 and used for acquiring a handle state signal; the timer 4 is connected with the motor controller 3 and used for providing a clock signal; the motor controller 3 is connected with the signal sampling circuit 2 and the timer 4, and outputs an analog signal according to the handle rotating state signal and the clock signal; the motor controller 3 can obtain the amplitude and the speed of the action of the rotating handle positioner according to the timing condition, so that an analog signal can be output according to the amplitude or the speed, and the higher the speed is, the stronger the analog signal is, or the larger the amplitude is, the stronger the analog signal is. The signals S01 and S02 in fig. 1 may be further referred to the comparison circuit 7 shown in fig. 2 in order to show the output analog signal S0.

The comparison circuit 7 is connected to the motor controller 3 and is used for outputting a judgment signal according to the analog signal. The comparison circuit 7 comprises a comparator 71 and a threshold setting unit 72, wherein the non-inverting input terminal of the comparator 71 is connected to the motor controller 3 for obtaining the analog signal, the threshold setting unit 72 is used for setting the threshold signal and inputting the threshold signal to the inverting input terminal of the comparator 71, and the comparator 71 is used for outputting the judgment signal when the analog signal is higher than the threshold signal.

The threshold setting unit 72 comprises a voltage Vcc, a resistor R2 and a regulation potentiometer Rp1, wherein the voltage Vcc passes through the resistor R2 and the regulation potentiometer Rp1 and is grounded, and a regulation end on the regulation potentiometer Rp1 is used for outputting a threshold signal. This threshold signal is adjustably set and controlled by external commissioning personnel. This means that the conditional trigger for starting the timer 5 in the control is fulfilled. When the analog signal intensity is greater than the set threshold signal, the determination signal is triggered, and the timer 5 is started through the photocoupler shown in fig. 3. The thirty-five timing circuit is a module circuit with a relatively common timing function.

Specifically, referring to fig. 3, the timer 5 is connected to the output end of the comparison circuit 7 through the isolation switch 6, and is used for controlling the operation of the driving switch circuit 8 at regular time according to the determination signal, and the driving switch circuit 8 is connected to the brake power supply 9 and the power supply line of the reverse torque brake 10, and is used for controlling the operation duration of the reverse torque brake 10. The isolating switch 6 is a photoelectric coupler. The timer 5 is a three-five timing circuit.

The timer 5 comprises a chip U1 of three or five models, a resistor R11, a regulating resistor R12, a capacitor C11, a diode D11 and a voltage Vcc, and the connection mode is referred to FIG. 3, so that the connection mode is not described. And the output end of the timer 5 is a third pin of the chip U1, and the third pin is connected with a coil K1 of the relay, and the other end of the coil K1 of the relay is grounded. Namely: the driving switch circuit 8 comprises a relay and a diode D12, wherein a coil of the relay is connected to the output end of the timer 5, a diode D12 is reversely connected in parallel to the coil of the relay, and a normally open switch of the relay is connected in series with a power supply line of the braking power supply 9 and a power supply line of the reverse torque brake 10.

Therefore, when the comparator 71 is triggered to output the judgment signal, the timer 5 also starts to time, and the coil K1 of the relay is electrified for a fixed time length, so as to control the time length of the operation of the reverse torque brake 10. The length of time for which the timer 5 operates, i.e., the timing length, can be set by adjusting the resistor R12. When the timing is over, the relay is reset, and the reverse torque brake 10 is also reset.

With respect to the reverse torque brake 10, it is essentially an electric brake, or a reverse motor. The motor reversely rotates to provide braking power. In this embodiment, the reverse torque brake 10 is a roll-over motor.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. An electric car device with automatic feedback of a loosening handle comprises a handle potentiometer, a signal sampling circuit, a motor controller, a timer, an isolating switch, a comparison circuit, a driving switch circuit, a braking power supply and a reverse torque brake in a handle rotating mechanism, and is characterized in that,

the signal sampling circuit is connected with the handle-turning potentiometer and is used for acquiring a handle-turning state signal;

2. An electric car apparatus for automatically feeding back a free wheeling handle as set forth in claim 1, wherein: the comparison circuit comprises a comparator and a threshold setting unit, wherein the non-inverting input end of the comparator is connected with the motor controller to obtain an analog signal, the threshold setting unit is used for setting a threshold signal and inputting the threshold signal to the inverting input end of the comparator, and the comparator is used for outputting a judgment signal when the analog signal is higher than the threshold signal.

3. An electric car apparatus for automatically feeding back a free wheeling handle as set forth in claim 1, wherein: the isolating switch is a photoelectric coupler.

4. An electric car apparatus for automatically feeding back a free wheeling handle as set forth in claim 1, wherein: the timer is a three-five timing circuit.

5. An electric car apparatus for automatically feeding back a free wheeler as set forth in claim 4, wherein: the driving switch circuit comprises a relay and a diode D12, a coil of the relay is connected to the output end of the timer, a diode D12 is connected to the coil of the relay in parallel in the reverse direction, and a normally open switch of the relay is connected to a power supply line of the braking power supply and the reverse torque brake in series.