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Series-parallel converting connector for lithium cell charging of electric bicycle

A technology for electric bicycles and lithium batteries, which is applied in the charging/discharging, connection, and repair/maintenance of secondary batteries, etc., can solve problems such as uneven partial pressure of batteries, and achieve the solution of uneven partial pressure, prevent burning, Guarantee sufficient charging effect

Inactive Publication Date: 2007-01-31
北京中润恒动电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to address the above problems, to provide a series-parallel conversion device for conveniently realizing the series discharge and parallel charge of the batteries of the lithium battery pack, so as to realize the parallel charge and solve the problem of uneven voltage division of each lithium battery, thereby preventing burning, Unsafe accidents such as explosions occur and ensure that the battery charging voltage reaches an ideal value

Method used

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  • Series-parallel converting connector for lithium cell charging of electric bicycle
  • Series-parallel converting connector for lithium cell charging of electric bicycle
  • Series-parallel converting connector for lithium cell charging of electric bicycle

Examples

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Embodiment Construction

[0013] Figure 1 ~ Figure 3 It shows the structure, assembly and schematic diagram of the circuit structure of a series-parallel conversion connector for lithium battery charging of an electric bicycle, which is characterized in that the series-parallel conversion connector of the lithium battery of an electric bicycle is composed of a plug 4 and a socket 13. The plug 4 includes three parts: a rectangular upper handle part 7, a middle plug part 9 and a protruding part 8 at the bottom. An integral plug contact reed 10 is fixed along one side of the plug part 9, and a positioning protrusion 12 is provided along the plug part. In another example, two-piece plug contact reeds 11 are fixedly arranged on both sides of the positioning protrusion 12. In actual production, the plug contact reeds 10, 11 and the plug 4 are made into one by injection molding; 6 Pass through the wire hole 5 provided on the handle part 7 to connect with the plug contact reeds 10 and 11 on both sides of the ...

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Abstract

The invention relates to an electric bicycle Li-battery charging series-parallel conversion connector, characterized in comprising plug and socket, where the plug connected with a charging power supply is equipped with contact spring plate and raised head part, and the socket comprises main component, active core, two removable switch side plates and removable baseboard, the switch side plates are horizontally equipped with switches composed of normally closed static contact, active contact and normally opened static contact, vertically arranged in order; the top surface of the active core is made with plug socket and the two sides are equipped with contact drive grooves and the bottom is equipped with support spring; and inserting and pulling out the plug and driving switch contacts can change Li-battery connecting mode so as to implement a series-discharging and parallel- charging effect. And the invention provides a series-parallel converter for implementing series discharging and parallel charging of Li battery, and can assure Li-battery voltage reaches a desired value.

Description

technical field [0001] The invention relates to a charging and discharging device for a lithium battery of an electric bicycle, in particular to a series-parallel conversion connector for charging the lithium battery of an electric bicycle. Background technique [0002] As a means of personal transportation, electric bicycles are rapidly developing in the market because of their labor-saving and energy-saving. In recent years, lithium batteries, which are emerging green energy sources, have also been applied to the field of electric bicycles, but the method of series discharge and series charge is generally used. Due to the characteristic that lithium batteries cannot be overcharged, there is a danger of combustion and explosion when the voltage exceeds 4.25V. When charging in series, the principle of voltage division is adopted. Due to the inconsistency of the performance of each battery, the voltage distribution is uneven during the charging process. Some are higher and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01R33/00
CPCY02E60/12Y02E60/10
Inventor 苏文孝刘连仲
Owner 北京中润恒动电池有限公司
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