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Direct-current input type electric automobile charging system

A technology for electric vehicles and charging systems, which is applied in the fields of electric vehicle charging technology, electric vehicles, and efficient vehicle charging. Improve and reduce the effect of line transmission loss

Pending Publication Date: 2022-01-25
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power factor correction circuit and the resonant power converter are usually integrated inside the car charger box. This integration method will increase the size and weight of the charger, and the integration cost is relatively high.

Method used

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  • Direct-current input type electric automobile charging system
  • Direct-current input type electric automobile charging system
  • Direct-current input type electric automobile charging system

Examples

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Embodiment Construction

[0020] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0021] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and number of componen...

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PUM

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Abstract

The invention discloses a direct-current input type electric automobile charging system, and belongs to the field of electric automobile charging. The invention aims to solve the problems that an existing vehicle-mounted charger is complex in circuit structure, large in size and high in integration cost. The system comprises an AC / DC conversion device and a plurality of terminal charging energy storage devices connected in parallel; each terminal charging energy storage device comprises a vehicle-mounted charger, wherein the vehicle-mounted charger comprises a resonance power converter; a power grid is connected to the AC / DC conversion device; conversion device. the DC end of the AC / DC conversion device is connected with the DC input ports of the resonance power converters of the terminal charging energy storage devices through a DC bus. According to the system, the structure of the vehicle-mounted charger is simplified, the single-machine cost is reduced, and the power density is also improved.

Description

technical field [0001] The invention relates to the field of electric vehicle charging, in particular to a DC input electric vehicle charging system. Background technique [0002] With the increasing demand for automobiles all over the world, human beings are facing increasingly severe environmental and energy crises. In order to solve this contradiction, major automobile companies in various countries in the world have accelerated the pace of research and development of electric vehicles, and the supporting infrastructure construction is the prerequisite for promoting the development of electric vehicles. From the perspective of energy use, electric vehicles have replaced fossil fuel energy with electric energy, and thus evolved into a new type of power user. To be precise, they use power batteries to store power, and the charger acts as a DC power supply for the power battery. It is the energy supply equipment for the power battery of electric vehicles and the tool for el...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/02H02J7/14H02J7/35H02J1/10H02M1/42H02M3/335H02M7/797B60L53/20B60L53/22H02S10/12H02S10/20
CPCH02J7/0013H02J7/02H02J7/35H02J7/1423H02J7/1415H02J1/10B60L53/20B60L53/22H02M3/33561H02M3/33584H02M7/797H02M1/4216H02S10/12H02S10/20H02J2207/20B60L2210/30B60L2210/40B60L2210/10B60L2210/12H02J2300/24H02J2300/28H02J2300/40Y02E10/56Y02E70/30Y02T10/70Y02T10/92Y02T10/7072Y02T90/14
Inventor 周凯郑少龙吴晓刚李然金宁治孙东阳
Owner HARBIN UNIV OF SCI & TECH
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