Integrated fuel cell double-high-voltage power supply and power supply system

A fuel cell and power supply technology, applied in battery/battery traction, electric vehicles, power management, etc., can solve the problems of boost DCDC not working properly, exceeding, etc., to achieve high integration, reasonable wiring, reasonable and concise wiring Effect

Inactive Publication Date: 2020-12-01
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the current busbar voltage range of new energy electric vehicles is generally 250V to 500V, and the rated voltage is 350V, as the power demand of fuel cells continues to increase, the output voltage of fuel cell stacks will also become higher and higher, so that it will exceed The bus voltage of the whole vehicle, then the fuel cell system step-up DCDC will not work normally

Method used

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  • Integrated fuel cell double-high-voltage power supply and power supply system
  • Integrated fuel cell double-high-voltage power supply and power supply system

Examples

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Embodiment 1

[0026] Example 1: Such as figure 1 Shown, an integrated high-voltage power supply dual fuel cell, comprising a fuel cartridge electrical power supply and the vehicle power supply.

[0027] Electrical power supply comprises a fuel cartridge and a fuel cell boost DC-DC converter 2, the second input of the boost DC-DC converter and the fuel cell 1 is electrically connected to an output terminal.

[0028] A first high-voltage power distribution unit 16, the second output node of the first high-voltage power distribution unit 16 and the input terminal of the boost DC-DC converter is connected to a first high voltage power distribution unit 16 is equipped with a first high-voltage power distribution box 161, a first high voltage power distribution box 161 is provided with a first output terminal of the high-pressure port connected to the first high voltage electrical apparatus, a first high-pressure port voltage of 540V.

[0029] A second high voltage power supply comprises a vehicle po...

Embodiment 2

[0033] Example 2: Such as figure 2 Shown, an integrated high voltage power supply dual fuel cell system including a fuel supply system and a vehicle power train power supply system, fuel supply system electrical assembly comprising: a fuel cell 1, a boost DC-DC converter 2, a first a first high-voltage power distribution unit 16 and the high voltage means, the second input of the boost DC-DC converter and the fuel cell 1 is electrically connected to an output terminal, an output terminal of the first high voltage power distribution unit 16 is electrically connected to an input terminal, a first High-voltage distribution unit 16 equipped with a first high-voltage power distribution box 161, a first output terminal of the high-pressure distribution box 161 with a plurality of first high-pressure device is electrically connected, in the present embodiment, the operating voltage of the first device is a high voltage 540V.

[0034] The vehicle power supply system comprising: a second h...

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Abstract

The invention discloses an integrated fuel cell double-high-voltage power supply which comprises a fuel cell assembly power supply and a whole vehicle power supply. The fuel cell assembly power supplycomprises a fuel cell, a boost DC-DC converter and a first high-voltage power distribution unit, and the output terminal of a first high-voltage power distribution box is provided with a first high-voltage port; the whole vehicle power supply comprises a second high-voltage power distribution unit and an energy storage element, and the output terminal of the second high-voltage power distributionunit is provided with a second high-voltage port. The invention further provides an integrated fuel cell double-high-voltage power supply system which comprises the power supply, a first high-voltagedevice electrically connected with the first high-voltage port and a second high-voltage device electrically connected with the second high-voltage port. Double-high-voltage power supply can be achieved at the same time, larger power output is provided, and the dynamic property of the whole vehicle is improved; the gas-electric assembly power supply system is high in integration level, reasonablein wiring and convenient to integrally disassemble and assemble.

Description

Technical field [0001] The present invention relates to a fuel automotive technology, in particular it refers to a high-voltage integrated dual fuel cell power supply, power supply system. Background technique [0002] With the development of fuel cell vehicles and development applications, conventional growing trend toward electric - electric hybrid manner, i.e., to the fuel cell main energy storage element to assist and supplement architecture. The main energy storage element to meet the vehicle power demand, in the vehicle provided hundred kilometers acceleration and hill climbing enough power to make up for the electric ignition system in response to the instantaneous power is not timely disadvantages. Low-power fuel cell system has been unable to meet the power demand for passenger cars, while the full-power fuel power development needs of the system has been rapidly advancing. [0003] Boosting the fuel as the fuel cell system DCDC important components, the main functions o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/75
CPCB60L50/75Y02T10/70Y02T10/72Y02T90/40
Inventor 熊洁史建鹏熊成勇尚伟华张剑
Owner DONGFENG MOTOR CORP HUBEI
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