Technology for quickly charging two-wheel, three-wheel and four-wheel low-speed electric vehicle by using direct-current charging pile

By using lithium battery liquid cooling technology and thermistor to monitor battery temperature in low-speed electric vehicles, combined with DC charging piles for electric vehicles, fast charging is achieved, solving the problem of too long charging time for low-speed electric vehicles, and improving charging efficiency and safety.

CN120245772AInactive Publication Date: 2025-07-04马永生
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Patent Information

Application Number
CN202510420180.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-07-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The charging time of low-speed electric vehicles is too long, which leads to mileage anxiety and inconvenient charging.

Method used

Lithium battery liquid cooling technology, thermistor monitoring battery temperature and lithium battery protection board are used, and fast charging is achieved by combining electric vehicle DC charging piles.

Benefits of technology

It realizes fast charging of low-speed electric vehicles, solves the problem of too long charging time, and improves charging efficiency and safety.

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Abstract

The invention discloses application of a quick charging technology for a two-wheel, three-wheel and four-wheel low-speed electric vehicle, a direct-current quick charging module and a thermal management system of a battery are additionally arranged in the two-wheel, three-wheel and four-wheel electric vehicle, a direct-current and alternating-current charging pile of the electric vehicle is safely utilized to quickly charge the vehicle, and the technology is very easy to popularize and popularize.
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Description

Technical Field

[0001] The present invention relates to the charging field of batteries for low-speed two-wheeled, three-wheeled, and four-wheeled electric vehicles, and particularly solves the problem of inconvenient long-time charging of low-speed electric vehicles. Technical Background

[0002] With the development of technology, the problem of fast charging for electric vehicles has been basically solved, avoiding excessive range anxiety. However, for our more convenient and efficient electric bicycles, they still need to be charged with 220V mains power at home, taking more than a dozen hours or as little as a few hours for the charging process, and being passive about the fear of insufficient battery power, having no place to recharge, and long charging times during outdoor activities. The present invention can basically solve such dilemmas. Summary of the Invention

[0003] The purpose of the present invention is to use a DC charging pile for electric vehicles to quickly charge and replenish energy for two-wheeled electric bicycles.

[0004] In order to achieve fast charging for electric bicycles, the following technical solutions are provided: (1) The lithium battery uses a liquid cooling technology with fast heat dissipation to meet the temperature requirement for fast charging.

[0005] (2) A thermistor is installed to continuously monitor the charging temperature of the battery. When the battery temperature is outside the temperature range for fast charging, the charging parameters are adjusted in a timely manner, or the power supply is cut off.

[0006] (3) A lithium battery protection board is installed on the lithium battery to reach the upper and lower limits of charge and discharge of the lithium battery. Detailed Embodiment

[0007] 5. On the electric bicycle, by means of an electronic integrated circuit, the technical specifications of a national standard electric vehicle charging pile are met to implement fast charging of the electric vehicle.

Claims

1. A fast charging technology for two-wheel, three-wheel and four-wheel low-speed electric vehicles using a DC charging pile. (1) An integrated circuit module for fast charging is integrated inside the vehicle. (2) The charging port of a national standard electric vehicle charging pile. (3) An internal liquid cooling or air cooling heat dissipation system is installed on the battery.