A safety protection system for electric vehicle charging circuit
A charging circuit and safety protection technology, applied in electric vehicle charging technology, electric vehicles, battery circuit devices, etc., can solve problems such as safety hazards, leakage current circuits, charging circuit overcurrent, etc., to prevent safety accidents and improve user experience. , to ensure the effect of reliability and timeliness
Active Publication Date: 2021-08-31
SHANGHAI POWERSHARE TECH LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, in the existing electric vehicle charging equipment, the safety protection of the electric vehicle charging circuit is often ignored.
The electric vehicle charging circuit is likely to cause common circuit faults such as overcurrent and leakage current in the charging circuit due to aging and damage of the circuit, which has caused a large safety hazard.
[0004] There are at least the following problems in the prior art: In the existing car charging circuit, there is no effective safety protection for the charging circuit, and there is a large potential safety hazard
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] An embodiment of the present application provides a safety protection system for a charging circuit of an electric vehicle.
[0043] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0044] figure 1It is a schematic diagram of the module structure of an embodiment of an electric vehicle charging circuit safety protection system described in this application. Although the present applic...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present application provides a safety protection system for an electric vehicle charging circuit. The system includes: a current monitoring unit, including a leakage current monitoring module, which is used to monitor the leakage current signal in real time, and convert the leakage current signal into a first reference voltage signal a comparator unit, including a first comparator module, for comparing the first reference voltage signal with a first comparison voltage, and outputting a corresponding first output level according to the comparison result; a state memory unit, A thyristor device is included to control the turn-on or cut-off of the thyristor device according to the first output level; a feedback level generating unit is configured to generate Feedback level; a relay switching control unit, configured to use the feedback level to control the charging circuit to be turned on or off. By utilizing various embodiments in the present application, effective safety protection for electric vehicle charging circuits can be realized.
Description
technical field [0001] The present application relates to the technical field of circuit safety protection, in particular to a safety protection system for electric vehicle charging circuits. Background technique [0002] The application of electric vehicles can effectively reduce environmental pollution caused by exhaust emissions. The electric energy supply of electric vehicles is crucial to the widespread application of electric vehicles. At present, electric vehicle charging stations can be seen everywhere, and car owners can charge at the charging station through the car's charging equipment, which is convenient and fast. [0003] However, in the existing electric vehicle charging equipment, the safety protection of the electric vehicle charging circuit is often ignored. The electric vehicle charging circuit is likely to cause common circuit faults such as overcurrent and leakage current in the charging circuit due to aging and damage of the circuit, which has caused ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/00H02J7/00
CPCH02J7/0026H02J7/00H02J7/0036H02J7/00304Y02T10/70Y02T10/7072Y02T90/14
Inventor 李江伟朱卓敏周宏亮
Owner SHANGHAI POWERSHARE TECH LTD