Vehicle-mounted power battery low-temperature full-time interleaving heating topology circuit and application thereof

A power battery and time interleaved technology, applied in battery temperature control, circuits, secondary batteries, etc., can solve problems such as lack of solutions, and achieve the effects of low cost, small size, and easy integration

Inactive Publication Date: 2018-05-04
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In summary, in the prior art, there is still no effective solution to the problem of applying the AC heating method to electric vehicles.

Method used

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  • Vehicle-mounted power battery low-temperature full-time interleaving heating topology circuit and application thereof
  • Vehicle-mounted power battery low-temperature full-time interleaving heating topology circuit and application thereof
  • Vehicle-mounted power battery low-temperature full-time interleaving heating topology circuit and application thereof

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Embodiment Construction

[0055] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0056] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0057] As introduced in the background technology, there is a problem in the prior art that the AC heating metho...

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Abstract

The invention discloses a vehicle-mounted power battery low-temperature full-time interleaving heating topology circuit and application thereof. The circuit comprises a first battery pack and a secondbattery pack, wherein two Buck-Boost inverter circuits which are connected in parallel are connected in parallel with a to-be-heated battery pack; the Buck-Boost inverter circuits are respectively controlled by two pairs of PWM (Pulse-Width Modulation) signals of which phase angles are different for a set angle; when a single battery of the first battery pack is heated by a first Buck-Boost inverter circuit, a single battery of the second first battery pack is heated by the second Buck-Boost inverter circuit, and thus full-time battery heating is achieved. By adopting the interleaving heatingtopology circuit disclosed by the invention, under the condition that a battery pack is not further damaged, the heating speed can be remarkably increased, and the heating efficiency can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of battery heating, in particular to a low-temperature full-time interleaved parallel heating topology circuit for vehicle-mounted power batteries. Background technique [0002] Low-temperature heating of the battery is a necessary means to ensure the efficient and safe operation of the power battery in a low-temperature environment. At present, scholars have proposed many heating methods, which can be divided into two categories: external heating and internal heating. According to different heat transfer media, external heating methods can be divided into gas, liquid, phase change materials and electric heating wires. The external heating method has the disadvantages of slow heating, unevenness, low efficiency, large volume, high cost, and low reliability. The internal heating method refers to the direct use of the real part of the internal resistance of the battery to generate heat from the inside of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/615H01M10/625H01M10/63H01M10/657
CPCH01M10/615H01M10/625H01M10/63H01M10/657Y02E60/10
Inventor 商云龙张承慧崔纳新张奇段彬
Owner SHANDONG UNIV
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