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Power supply system for electric wheelchair and control method

A technology for power supply systems and electric wheelchairs, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve potential safety hazards, reduce the number of times of use of soft-pack lithium batteries, etc., and achieve high cycle times, convenient communication, and small size Effect

Pending Publication Date: 2022-07-22
华富(江苏)锂电新技术有限公司
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Problems solved by technology

But at the same time, with the frequent charging and discharging of the soft-pack power lithium-ion battery, or the occurrence of adverse conditions such as overcharge, over-discharge, short circuit, and over-temperature, the number of times the soft-pack lithium battery is used will be greatly reduced, and there are certain Security risks

Method used

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  • Power supply system for electric wheelchair and control method
  • Power supply system for electric wheelchair and control method
  • Power supply system for electric wheelchair and control method

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Embodiment Construction

[0040] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0041] like figure 1 , 2 As shown in , 3, a power supply system for an electric wheelchair includes a case and a 2+3 socket 5 arranged through the case, and the case includes a case cover 2 and a case body 3 . A handle 1 is centrally arranged on the surface of the box cover 2 . The front end of the box body 3 is provided with a circular through hole, and two sides of the circular through hole are provided with a set of symmetrical fixing holes. The 2+3 socket 5 passes through the through hole at the front end of the box body 3 and is fixed by the fixing holes. The plug-in end of the socket 5 is located outside the box body 3 . The socket interface of the...

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Abstract

The invention relates to a power supply system for an electric wheelchair and a control method, the power supply system comprises a case and a 2 + 3 socket arranged in the case in a penetrating manner, a lithium battery pack and a battery management system BMS are arranged in the case, and the lithium battery pack comprises an assembly plate and a plurality of soft package power lithium ion batteries which are attached in parallel; tabs of the soft package power lithium ion batteries extend and penetrate through the assembly plate to be sequentially connected in series, and a negative electrode of the soft package power lithium ion battery located on the outermost side serves as a total negative electrode of the lithium battery pack to be electrically connected with a B-via hole bonding pad on a battery management system (BMS); the positive electrode of the soft package power lithium ion battery located on the other outermost side serves as the total positive electrode of the lithium battery pack and is electrically connected with the positive terminal of the 2 + 3 socket interface, and the negative terminal of the 2 + 3 socket interface is electrically connected with the P-via hole bonding pad on the BMS. According to the invention, charging and discharging real-time protection of the lithium battery can be realized, and the safety is high.

Description

technical field [0001] The invention relates to a power supply system and a control method for an electric wheelchair, and belongs to the technical field of lithium ion batteries. Background technique [0002] At present, with the continuous improvement of people's living standards and the growing trend of population aging, the number of electric wheelchairs is rapidly increasing, and people are gradually facing a series of problems such as "low charging efficiency" and "many potential safety hazards". [0003] Compared with lead-acid batteries, the service life of power soft-pack lithium-ion batteries is much longer, which can save the cost of use. More importantly, the safety of power soft-pack lithium-ion batteries can be guaranteed. However, at the same time, with the frequent charging and discharging of soft-pack power lithium-ion batteries, or the occurrence of overcharge, over-discharge, short-circuit and over-temperature conditions, the use times of soft-pack lithium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/00036H02J7/0029H02J7/00302H02J7/00306H02J7/00304H02J7/00309H02J7/0045H02J7/0047H02J7/0048H02J7/0068
Inventor 蒋仕平朱明海崔文杰代云飞王志鹏蒋萍尤兆坤仇存杰
Owner 华富(江苏)锂电新技术有限公司
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