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Two-way charging device and auxiliary source power supply method for the two-way charging device

A charging device and auxiliary source technology, which is applied in the direction of circuit devices, battery circuit devices, current collectors, etc., can solve the problems of high power and reduced volume of auxiliary sources, and achieve the effect of reducing volume and cost

Active Publication Date: 2020-01-07
XIAN TGOOD INTELLIGENT CHARGING TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the embodiments of the present invention is to provide a bidirectional charging device and an auxiliary source power supply method for the bidirectional charging device, so as to improve the problem that the auxiliary power of the existing bidirectional charging device is relatively large, and reduce the cost of the bidirectional charging machine. reduce its size

Method used

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  • Two-way charging device and auxiliary source power supply method for the two-way charging device
  • Two-way charging device and auxiliary source power supply method for the two-way charging device
  • Two-way charging device and auxiliary source power supply method for the two-way charging device

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no. 1 example

[0045] This embodiment provides a bidirectional charging device. In order to improve the existing two-way charger auxiliary source power is relatively large, occupying a relatively large volume and other problems.

[0046] see figure 2 The two-way charging device is used to connect to the grid or mains to convert the AC signal into a DC signal to charge the battery, or convert the DC signal in the battery into an AC signal and incorporate it into the grid.

[0047] The bidirectional charging device includes an AC port, a bidirectional ACDC circuit, an ACDC sampling drive circuit, a DC bus, a bidirectional DC / DC circuit, a DCDC sampling drive circuit, a DC port, a first auxiliary source and a second auxiliary source, an AC port and a bidirectional ACDC circuit, The DC bus, the bidirectional DC / DC circuit and the DC port are electrically connected in sequence.

[0048] When the bidirectional charging device is working in the forward direction, that is, charging the power batt...

no. 2 example

[0062] This embodiment provides a bidirectional charging device. The basic principle and structural composition of the bidirectional charging device provided in this embodiment are similar to the bidirectional charging device provided in the first embodiment. For a brief description, this embodiment will not be described in detail. This embodiment does not introduce details, please refer to the relevant content in the first embodiment.

[0063] see Figure 4 The bidirectional charging device includes an AC port, a bidirectional ACDC circuit, an ACDC sampling drive circuit, a DC bus, a bidirectional DC / DC circuit, a DCDC sampling drive circuit, a DC port, a first auxiliary source and a second auxiliary source, an AC port and a bidirectional ACDC circuit , the DC bus, the bidirectional DC / DC circuit and the DC port are electrically connected in sequence.

[0064]When working in the forward direction, that is, charging the power battery of the electric vehicle through the grid o...

no. 3 example

[0076] This embodiment provides an auxiliary source power supply method for a bidirectional charging device, and the auxiliary source power supply method for a bidirectional charging device provided in this embodiment is applied to the bidirectional charging device provided in the first embodiment.

[0077] The bidirectional charging device includes an AC port, a bidirectional ACDC circuit, an ACDC sampling drive circuit, a DC bus, a bidirectional DC / DC circuit, a DCDC sampling drive circuit, a DC port, a first auxiliary source and a second auxiliary source, an AC port and a bidirectional ACDC circuit, The DC bus, the bidirectional DC / DC circuit and the DC port are electrically connected in sequence; the ACDC sampling drive circuit is electrically connected to the bidirectional ACDC circuit to drive the bidirectional ACDC circuit, and the DCDC sampling drive circuit is electrically connected to the bidirectional DC / DC circuit to drive The bidirectional DC / DC circuit works; the ...

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Abstract

The invention provides a bidirectional charging device and an auxiliary source power supplying method of the bidirectional charging device, and relates to the technical field of electric vehicle charging. The bidirectional charging device comprises an alternating current port, a bidirectional ACDC circuit, an ACDC sampling driving circuit, a direct current bus, a bidirectional DC / DC circuit, a DCDC sampling driving circuit, a direct current port, a first auxiliary source and a second auxiliary source, wherein the first auxiliary source is used for providing power supply for a whole system, andpower of the second auxiliary source only needs to be used for normally driving the bidirectional DC / DC circuit to complete voltage conversion so that the first auxiliary source can obtain the powersupply from the direct current bus or the direct current port to replace the second auxiliary source to drive a whole bidirectional charging device body to work normally in turn, no need for both thefirst auxiliary source and the second auxiliary source to meet running power of the whole system is achieved, and overall power of the first auxiliary source and the second auxiliary source is effectively reduced so that the cost of the bidirectional charging device can be reduced, and the size of the bidirectional charging device is reduced.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to a bidirectional charging device and an auxiliary source power supply method for the bidirectional charging device. Background technique [0002] Environmental and energy issues have prompted the rapid development of the global electric vehicle industry, and the on-board chargers on electric vehicles have also continued to develop. From the initial one-way charger that can only charge the on-board battery from the mains to Charging from the mains to the battery can also be reversed from the battery to AC output with load or incorporated into the grid. [0003] The bidirectional charger structure in the prior art generally requires two auxiliary sources: the forward auxiliary source and the reverse auxiliary source to ensure that the auxiliary source of the entire system can supply power normally when the bidirectional operation is performed. The forward auxiliary source needs to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/04H02J3/32
CPCH02J3/32H02J7/045
Inventor 薛亮沈得贵李灵鑫
Owner XIAN TGOOD INTELLIGENT CHARGING TECH CO LTD