Constant-temperature protection device of power battery of electric vehicle
A protection device and electric vehicle technology, applied in battery temperature control, secondary battery repair/maintenance, secondary battery, etc., can solve the problems of lack of battery pack environmental balance temperature protection, lack of working environment protection, etc., and achieve low cost , improve the service life, and the raw materials are easy to obtain
Inactive Publication Date: 2009-12-30
李光明
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Problems solved by technology
However, these passive management detection schemes still have great limitations.
Especially the lack of protection for its working environment during charging and discharging, especially the lack of balanced temperature protection for the battery pack environment
Method used
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Embodiment Construction
[0013] attached figure 2 It is a top view of an embodiment of an electromagnetic shielding protection device for an electric vehicle. as attached figure 2 As shown, each unit battery of the battery pack 101 is supported and fixed by the base 102 and placed in the double-layer container 103 . A kind of ethylene glycol car antifreeze water-based solution 104 is injected into the solution tank 106, enters the double-layer container 103 through the circulation pump 107, and due to the effect of the circulation pump 110, circulates back to the solution tank 106 through the solution pipeline 106. , the electronic fan 110 forcibly lowers the temperature of the glycol antifreeze water-based solution 104 according to the instruction of the temperature sensor, or heats it with the heater 109 . As shown in the figure, the outer and inner layers of the double-layer container have no channels and are relatively isolated. This design can improve the isolation effect on the external envi...
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The invention relates to a double-layered container constant-temperature device of battery packs of an electric vehicle or a hybrid electric vehicle, mainly comprising the battery packs, a battery pack base, a double-layered container shell, a water-based solution, a solution cabinet, a recycle pump, a temperature sensor, a heater and an electronic fan. The water-based solution, the solution cabinet and the recycle pump are arranged in the shell; the battery packs are uniformly arranged in the container with the water-based solution, and the container shell is designed into double layers. The circulative water-based solution as an active protective measure provides a constant-temperature environment for unit batteries arranged at different parts of the vehicle so as to provide the powerful protection device for solving the problem of poor balance of the battery packs, thereby greatly prolonging the service life of the battery packs. Meanwhile, aiming at the characteristic that various power batteries of the electric vehicle have poor suitability to environment, in particular to temperature, the constant-temperature design of the device enables the electric vehicle as an outdoor tool to have suitability to the climate environmental conditions of various places and seasons.
Description
technical field [0001] The invention relates to a power battery of an electric vehicle or a hybrid electric vehicle, in particular to a balanced cooling protection device including the battery of the electric vehicle or a hybrid electric vehicle. Background technique [0002] Electric vehicles: The balance of the battery pack is a worldwide problem. During the charging and discharging process, a problem with one or a part of the single cells in the battery pack will quickly spread to the entire battery pack to form a short board effect of the entire battery pack, and vicious circle. There are many reasons for this, including the production process, raw materials and usage. To solve this problem, there are various charging and discharging real-time management systems in the industry, which can solve some problems. However, these passive management detection schemes still have great limitations. In particular, it lacks the protection of its working environment during chargi...
Claims
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IPC IPC(8): H01M8/04H01M10/42H01M10/613H01M10/615H01M10/617H01M10/625H01M10/6567H01M10/6568H01M10/66
CPCY02E60/50
Inventor 李光明
Owner 李光明