CN214823800U - Electric motor car circuit safety protection system - Google Patents
Electric motor car circuit safety protection system Download PDFInfo
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- CN214823800U CN214823800U CN202121328644.5U CN202121328644U CN214823800U CN 214823800 U CN214823800 U CN 214823800U CN 202121328644 U CN202121328644 U CN 202121328644U CN 214823800 U CN214823800 U CN 214823800U
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Abstract
The utility model provides an electric motor car circuit safety protection system belongs to electric motor car technical field. It has solved the problem that the conflagration takes place for current electric motor car circuit short circuit. This electric motor car circuit safety protection system, including controller, converter, battery, circuit breaker, motor and pilot lamp subassembly, the controller is used for controlling the motor and rotates and pilot lamp subassembly work, and the converter is used for being the required rated operating voltage of pilot lamp subassembly with battery voltage conversion, the circuit breaker be used for overload protection circuit, pilot lamp subassembly is used for controlling the electric motor car illumination, instructs and sounds the police, and the circuit breaker establishes ties between controller input and battery output, and the controller output links with battery input and converter input respectively, and it has safeties to establish ties between converter input and the controller output, and the hookup is used for controlling the commentaries on classics handle of motor speed still on the controller. The utility model has the advantages of structural design is reasonable, install with low costsly additional and factor of safety is high.
Description
Technical Field
The utility model belongs to the technical field of the electric motor car, a electric motor car circuit safety protection system is related to.
Background
At present, electric motor cars and motorcycles are developed and popularized by electric motor car manufacturers all over the world, the electric motor cars have wide development prospects, the development of battery technology is promoted due to the vigorous development of the electric motor cars, although the production process of the existing electric motor car batteries is mature day by day, part of the existing electric motor car batteries are still insufficient to be improved, most of lighting, indicating and alarming circuits of the electric motor cars adopt voltage supply converted by a voltage converter, and the main power supply of the electric motor cars is higher than 36V, so that the required rated working voltage obtained by the conversion circuit of more than 36V and 36V is required to be supplied to the circuits for lighting, indicating, alarming and the like.
The control circuit of the existing electric motorcycle is usually connected with a circuit breaker for circuit protection during short circuit, when the current value reaches 40A, the circuit breaker works, but circuits such as lighting, indication, alarming and the like of the electric vehicle can generate aging and easily generate short circuit phenomena due to long-term use of all connectors and connecting wires, when the short circuit current value in each working circuit is smaller than 40A, the voltage required by the work of the circuit breaker cannot be reached, and sparks are easily generated in the short circuit by the current output value smaller than 45A, so that the whole vehicle burning accident of the electric vehicle is caused.
Disclosure of Invention
The utility model aims at providing an electric motor car circuit safety protection system to the above-mentioned problem that exists among the prior art, solve above problem.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides an electric motor car circuit safety protection system, includes controller, converter, battery, circuit breaker, motor and pilot lamp subassembly, its characterized in that, the controller is used for the control motor to rotate and pilot lamp subassembly work, the converter be used for being the required rated operating voltage of pilot lamp subassembly with the battery voltage conversion, the circuit breaker be used for overload protection circuit, the pilot lamp subassembly is used for controlling electric motor car illumination, instruction and warning, the circuit breaker establish ties between controller input and battery output, the controller output link with battery input and converter input respectively, it has safeties to establish ties between converter input and the controller output, the controller on still the hookup be used for controlling motor speed's commentaries on classics handle.
In the above-mentioned electric vehicle line safety protection system, the indicator light assembly comprises a near light, a far light, an indicator light, an instrument light, a turn light, a tail light, a brake light and a horn, and a headlight switch and a horn switch for controlling the indicator light assembly to be switched are respectively connected in series between the output end of the converter and the input end of the indicator light assembly.
In the above-mentioned safety protection system for the electric vehicle line, the overload current value of the fuse device is between 7.5A and 10A, and the fuse device is used for indicating that the connection between the converter and the controller is broken when the lamp assembly is in short circuit, the fuse device is composed of a fuse sleeve and a fuse, and two fuses can be arranged on the fuse sleeve.
Compared with the prior art, the electric vehicle line safety protection system has the following advantages:
1. the electric vehicle line safety protection system is connected in series with a short circuit and is disconnected under the condition that the detectable current value is small, so that the problems that the line is aged and short circuit occurs and fire disasters are caused under the long-term use of the electric vehicle are effectively prevented;
2. the safety device is connected between the controller and the converter in series, and when the current value is short-circuited under the condition that the circuit breaker cannot work, the controller and the converter can be disconnected, the motion of the electric vehicle is not influenced, only the indicating lamp assembly is disconnected, the circuit safety protection system has the function of reminding a rider of needing to maintain, brings convenience for the rider to go to an appointed place to maintain, does not need to push the electric vehicle to reach the appointed place to maintain, and greatly reduces the labor cost of the rider;
3. the electric vehicle line safety protection system is reasonable in structural design, convenient to install in enterprises, low in manufacturing cost, safe and reliable.
Drawings
Fig. 1 is a schematic circuit diagram of the electric vehicle line safety protection system.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the electric vehicle line safety protection system comprises a controller, a converter, a battery, a breaker, a motor and an indicating lamp assembly, wherein the controller is used for controlling the motor to rotate and the indicating lamp assembly to work, the converter is used for converting the voltage of the battery into the rated working voltage required by the indicating lamp assembly, the breaker is used for an overload protection circuit, the indicating lamp assembly is used for controlling the lighting, indicating and alarming of the electric vehicle, the breaker is connected between the input end of the controller and the output end of the battery in series, the output end of the controller is respectively connected with the input end of the battery and the input end of the converter, a safety device is connected between the input end of the converter and the output end of the controller in series, a rotating handle used for controlling the rotating speed of the motor is also connected on the controller, as the output end of the controller is respectively connected with the input end of the converter and the input end of the battery, and the safety device is connected between the converter and the controller in series, not only plays the role of small overload current protection and warning, but also can not influence the running of the electric vehicle.
In a further elaboration, the indicator light assembly consists of a near light, a far light, an indicator light, an instrument light, a steering light, a tail light, a brake light and a horn, and a headlight switch and a horn switch for controlling the indicator light assembly to be switched on and off are respectively connected in series between the output end of the converter and the input end of the indicator light assembly.
In further detail, the fuse device has an overload current value of 7.5A to 10A and is used for indicating that the connection between the converter and the controller is broken when the lamp assembly is in short circuit, the fuse device consists of a fuse sleeve and a fuse wire, and two fuse wires can be arranged on the fuse sleeve, one fuse wire works in a series circuit, and the other fuse wire is used for maintenance and standby.
Principle of operation
The lighting, indicating and alarming circuits of the electric vehicle are easy to generate short circuit phenomenon due to the aging of each connector and each connecting wire after long-term use, the traditional electric vehicle usually adopts a circuit breaker which is connected in series between a controller and a battery, but the circuit breaker needs to generate overload voltage to about 40A for working, namely, when the short circuit condition that the overload voltage is below 40A occurs in the circuit, the circuit breaker does not work, under the condition, electric sparks are easy to generate on the aging circuit and the seriously worn circuit and fire occurs, the system is characterized in that a safety device is connected in series between the output end of the controller and the input end of a converter, the overload current value of the safety device is between 7.5A and 10A, when the short circuit that the overload current is below 40A occurs in the circuit in the indicating lamp assembly, the safety device is disconnected, and the output end of the controller is respectively connected with the input end of the converter and the input end of the battery, when the controller is disconnected from the converter, the connection between the battery and the controller cannot be influenced, so that the movement of the electric vehicle cannot be influenced, the electric vehicle is convenient for personnel to go to a specified place for maintenance, and meanwhile, the electric vehicle also has the function of reminding the riding personnel of the vehicle of the fault.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides an electric motor car circuit safety protection system, includes controller, converter, battery, circuit breaker, motor and pilot lamp subassembly, its characterized in that, the controller is used for the control motor to rotate and pilot lamp subassembly work, the converter be used for being the required rated operating voltage of pilot lamp subassembly with the battery voltage conversion, the circuit breaker be used for overload protection circuit, the pilot lamp subassembly is used for controlling electric motor car illumination, instruction and warning, the circuit breaker establish ties between controller input and battery output, the controller output link with battery input and converter input respectively, it has safeties to establish ties between converter input and the controller output, the controller on still the hookup be used for controlling motor speed's commentaries on classics handle.
2. The electric vehicle line safety protection system of claim 1, wherein the indicator light assembly comprises a near light, a far light, an indicator light, an instrument light, a turn signal light, a tail light, a brake light and a horn, and a headlight switch and a horn switch for controlling the switch of the indicator light assembly are respectively connected in series between the output end of the converter and the input end of the indicator light assembly.
3. The system of claim 1, wherein the fuse has an overcurrent value of 7.5 to 10A, and the fuse is used to indicate that the converter is disconnected from the controller when the lamp assembly is short-circuited, and the fuse comprises a fuse cover and a fuse, and two fuses are installed on the fuse cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121328644.5U CN214823800U (en) | 2021-06-15 | 2021-06-15 | Electric motor car circuit safety protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121328644.5U CN214823800U (en) | 2021-06-15 | 2021-06-15 | Electric motor car circuit safety protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214823800U true CN214823800U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121328644.5U Active CN214823800U (en) | 2021-06-15 | 2021-06-15 | Electric motor car circuit safety protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214823800U (en) |
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2021
- 2021-06-15 CN CN202121328644.5U patent/CN214823800U/en active Active
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