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Battery charger

A battery charging and battery technology, which is applied in battery circuit devices, charging stations, electric vehicle charging technology, etc. Effect

Active Publication Date: 2017-12-19
SHANGHAI ELECTRICGROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a battery charger to overcome the defects of low charging efficiency and high manufacturing cost of the charger used for charging electric vehicles in the prior art

Method used

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Examples

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Embodiment Construction

[0027] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.

[0028] Such as figure 1 and figure 2 As shown, the battery charger 1 provided in this embodiment includes a control module 11, 6 charging modules 12 ( figure 1 In each battery charger 1, a charging module 12) and 6 battery SOC detection modules (not shown in the figure) are omitted, and each battery SOC detection module corresponds to a charging module 12 respectively, and each charging module 12 is respectively It includes a control switch 121 and an uncontrolled rectification circuit 122, and each uncontrolled rectification circuit 122 includes four diodes 1221 respectively. In this embodiment, the number of charging modules in the battery charger is not specifically limited, and can be adjusted according to the user's requirements. design based on actual needs.

[0029] In this example, 3 battery chargers (due to figur...

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Abstract

The invention discloses a battery charger. The battery charger comprises control modules and n charging modules, wherein n is a positive integer; each charging module comprises a control switch and an uncontrollable rectifying circuit separately; the control modules are electrically connected with a plurality of control switches respectively; the output ends of the control switches are electrically connected with the input ends of the corresponding uncontrollable rectifying circuits; the input end of each control switch is connected to alternating current; the output end of each uncontrollable rectifying circuit is connected to the corresponding battery; each control module transmits a control instruction to the corresponding control switch; and the control switch receives the corresponding control instruction and performs switch on and switch off of the electric connection with the corresponding uncontrollable rectifying circuit according to the control instruction. By adoption of the battery charger, the charging task can be completed, harmonic distortion rate is lowered, the power factor on the alternating current side is improved, and the number of the adopted semiconductor devices is small, so that charging efficiency is greatly improved while the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to a battery charger, in particular to a cascaded battery charger for charging an electric vehicle. Background technique [0002] With the increasing shortage of fossil energy such as global petroleum, air pollution and greenhouse effect continue to intensify, energy and environmental issues are getting more and more attention. Researchers from all over the world are actively exploring energy-saving and emission-reduction solutions. As one of the best ways to solve the problems of energy shortage, resource depletion, and environmental pollution caused by ordinary fuel vehicles, electric vehicles have received attention and support from governments around the world. The development and promotion of electric vehicles is an inevitable trend. my country has provided a lot of policy and financial support for the development of electric vehicles, and the power companies under the State Grid are actively promoting the construction of ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/04H02J7/00B60L11/18
CPCB60L53/60H02J7/045H02J7/0018Y02T10/70Y02T10/7072Y02T10/72Y02T90/12
Inventor 张超胡燕双曹碧颖杨建波
Owner SHANGHAI ELECTRICGROUP CORP
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