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Online output series-parallel connection automatic switching device and method for electric vehicle charger

An electric vehicle, automatic switching technology, applied in the direction of electric vehicles, battery circuit devices, battery/fuel cell control devices, etc., to achieve the effect of expanding application scenarios

Pending Publication Date: 2022-03-04
GUOCHUANG INNOVATION CENTER OF MOBILE ENERGY (JIANGSU) CO.,LTD.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method can realize a wide range voltage output of the charger, but the series-parallel switching must be performed when the charger is stopped

Method used

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  • Online output series-parallel connection automatic switching device and method for electric vehicle charger
  • Online output series-parallel connection automatic switching device and method for electric vehicle charger
  • Online output series-parallel connection automatic switching device and method for electric vehicle charger

Examples

Experimental program
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Effect test

Embodiment 1

[0041]This embodiment provides an electric vehicle charger online output skewide parallel automatic switching device, including a first power module, a second power module, and a relay component and a triode assembly connected between the first power module and the second power module. . The voltage conversion of the charging machine is achieved by controlling the control relay assembly and the triode assembly.

[0042] Specifically, the relay assembly includes a first relay S1, a second relay S2, and a third relay S3. Wherein, both ends of the first relay S1 are connected to the negative electrode output terminal of the first power module and the second power module, respectively. The two ends of the second relay S2 are connected to the positive output end of the first power module and the second power module, respectively. The two ends of the third relay S3 are connected to the negative electrode output terminal of the first power module and the positive output end of the second...

Embodiment 2

[0062] This embodiment provides an electric vehicle charger online output skewide parallel automatic switching device, and is different from the first embodiment in that the first power module, a second power module, a third power module, in this embodiment. A set of relay components and a set of triode assemblies between the first power module and the second power module and a set of relay components and a set of triode components connected between the second power module and the third power module.

[0063] Specifically, in a set of relay components connected between the first power module and the second power module, both ends of the first relay S1 are connected to the negative electrode output of the first power module and the second power module, respectively. The two ends of the second relay S2 are connected to the positive output end of the first power module and the second power module, respectively. The two ends of the third relay S3 are connected to the negative electrod...

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Abstract

The invention discloses an electric vehicle charger on-line output series-parallel connection automatic switching device, which relates to the technical field of electric vehicle chargers, and comprises at least two power supply modules, and a relay assembly and a triode assembly which are connected between any two adjacent power supply modules, the relay assembly comprises a first relay, a second relay and a third relay, and the triode assembly comprises a first triode, a second triode and a third triode. The two ends of the first relay, the second relay and the third relay are respectively connected in parallel with the first triode, the second triode and the third triode, so that the charger module can realize on-line series-parallel connection switching.

Description

Technical field [0001] The present invention relates to the technical field of electric vehicle chargers, and in particular, to an electric vehicle charger online output skewide parallel automatic digesting device and method. Background technique [0002] Such as figure 1 As shown, the current charging machine is generally used by the DC / / DC resonant circuit in order to achieve a wide range of output voltages, and the transformer primary winding is connected in series, and the secondary winding outputs series or parallel. When the demand voltage is low, the relays S1, S2 are closed, and S3 is disconnected, and the output of the two rectifier circuits is parallel, and when the demand voltage is high, the relays S1, S2 are disconnected, and S3 is closed, and the output of the two rectifier circuits is connected in series. This control method can realize the charging machine wide range voltage output, but the string parallel switch must be performed in the charging machine. Inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/19H02J7/00H02J7/34
CPCB60L58/19H02J7/0024H02J7/0029H02J7/34Y02T10/70
Inventor 吴赵风黄秋燕杨志杨立军
Owner GUOCHUANG INNOVATION CENTER OF MOBILE ENERGY (JIANGSU) CO.,LTD.
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