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battery heating system

A battery heating system and heating system technology, applied to secondary batteries, battery pack components, circuits, etc., can solve problems such as reducing the effective proportion of energy used in battery pack cruising range, reducing pure electric driving range, and consuming battery system energy. , to achieve the effect of various line connection methods, various installation positions, and reducing temperature unevenness

Active Publication Date: 2018-08-17
CONTEMPORARY AMPEREX TECH CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or use a liquid cooling system, or there is no heating function, or you need to use a heating rod for heating
If there is no heating function, it will limit the application of the battery
If heating rods or other types of heaters are used, and the electric energy of these heaters comes from the battery itself, it will consume the energy of the battery system, resulting in a reduction in the pure electric mileage of the electric vehicle. effective percentage

Method used

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Embodiment Construction

[0029] Below, will combine Figure 1 to Figure 7(a) ~(c) introduces the specific implementation manner of the battery heating system 100 of the present application.

[0030] refer to figure 1 As shown, the battery heating system of this application is integrated by two subsystems, the heating system branch and the power battery system branch. The battery pack system branch includes a battery pack 1 and several relays 2. The battery pack 1 includes a plurality of battery modules 11 and a heating subsystem 12. The heating subsystem 12 includes a plurality of heaters 121. The heating system branch is connected to the battery pack. The system branches are connected in parallel, and the relay 2 is used to control the two branches, so that the power supply of the heating system can come from both the external charging pile and the power battery pack itself. Wherein, the relay 2 includes a heating positive relay 21, a heating negative relay 22, a main positive relay 23 and a main n...

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Abstract

This application relates to the field of battery technology, and in particular to a battery heating system, which is composed of two subsystems, a heating system branch and a battery system branch. The battery system branch includes a battery pack and several relays. The battery The package includes a plurality of battery modules and a heating subsystem, the heating subsystem includes a plurality of heaters, the battery module is equipped with at least one of the heaters, and the heater is arranged on the bottom surface of the battery module or side. The battery heating system of this application can meet the two needs of driving heating and parking charging heating, and can provide users with a variety of modes of experience; the heater is installed in various positions, easy to assemble, and is suitable for different applications; the heating system has various connection methods. The wiring connection is simple; it can effectively reduce the temperature unevenness of the battery pack caused by heating.

Description

【Technical field】 [0001] The present application relates to the field of battery technology, in particular to a power battery heating system. 【Background technique】 [0002] Referring to Chinese Utility Model No. 204167438, a heating device for lithium-ion power batteries for vehicles is disclosed. The first relay, the heating element and the battery assembly of the device are connected in series to form a heating circuit. The heating element is composed of a plurality of heating films connected in series, and each heating film is pasted on the side of a single battery cell. [0003] At present, when the lithium-ion battery is generally in the range of 20-40 degrees, its charge and discharge performance is the best, and the service life is the best. The battery packs that appear on the market are basically air-cooled, and at the same time integrate solid heaters, such as metal heating diaphragms or PTC plate heaters. Or use a liquid cooling system, either without a heatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/615H01M10/625H01M10/657H01M50/204
CPCH01M10/615H01M10/625H01M10/657H01M50/204H01M10/0525H01M10/6571Y02E60/10
Inventor 李清亓海明
Owner CONTEMPORARY AMPEREX TECH CO
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