Battery pack heating system
A heating system and battery management system technology, applied in the field of battery pack heating system, can solve the problems of low battery efficiency, achieve high heating efficiency, accurate temperature control, and light weight
Pending Publication Date: 2021-12-07
JIANGSU UNIV
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Problems solved by technology
[0004] Aiming at the deficiencies in the prior art, the present invention provides a battery pack heating system, which can fit the battery better and save space. Compared with the resistance wire, the heating efficiency is higher, the heating is uniform, and the system controls the temperature accurately, which can Effectively solve the problem of low battery efficiency in winter
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.
[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0026] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation o...
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Abstract
A battery pack heating system provided by the present invention comprises a battery pack heating film, a temperature sensor and a battery management system, the battery pack heating film comprises biaxially oriented polypropylene films, an insulating waterproof film layer, a heating film layer and an electrode, the inside and the outside of the heating film layer are respectively wrapped by the biaxially oriented polypropylene films, and an insulating waterproof film layer is arranged between the heating film layer and the biaxially oriented polypropylene film; the battery is wrapped with the biaxially oriented polypropylene film, and an electrode is installed in the heating film layer and used for heating the heating film layer; the temperature sensor is used for detecting the temperature of the battery; and the battery management system controls the electrode to heat the heating film layer according to a value detected by the temperature sensor. The battery can be better attached, the space is saved, compared with a resistance wire, the heating efficiency is higher, heating is uniform, the system control temperature is accurate, and the problem that the battery efficiency is low in winter can be effectively solved.
Description
technical field [0001] The invention relates to the field of electric vehicles or power batteries, in particular to a battery pack heating system. Background technique [0002] As storage of fossil fuels dwindles, electric vehicle adoption is increasing. Our country has a vast territory, and the temperature difference is also relatively obvious. The temperature has a significant impact on the battery in the electric vehicle. In northern my country and plateau areas, the temperature is low in winter. However, the battery does not produce as much heat as the engine, and the efficiency of the battery is low at low temperature, which often cannot meet the needs of the driver. Therefore, it is necessary to control the battery temperature within a certain range. [0003] At present, the battery heating system usually uses heating elements. Most of the heating elements are PTC resistors, which are powered by internal or external chargers and directly heat the battery pack. The hea...
Claims
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IPC IPC(8): H01M10/615H01M10/625
CPCH01M10/615H01M10/625Y02E60/10
Inventor 丁华赵敬彦上官兴兴张伟徐晓明
Owner JIANGSU UNIV