Power battery heating power test device and method
A power battery and heat generating power technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of calculation result errors, convective heat transfer coefficient, and unknown thermal radiation coefficient of the outer surface of the battery, so as to reduce calculation errors, The effect of improving calculation accuracy
Inactive Publication Date: 2016-09-21
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
However, in this method, the convective heat transfer coefficient between the battery surface and the environment and the heat radiation coefficient on the outer surface of the battery are unknown, which may cause certain errors in the calculation results.
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[0041] 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.
[0042] The apparatus and method for testing the thermal power of a power battery according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
[0043] figure 1 It is the device for testing the thermal power of the power battery of the embodiment of the present invention. Such as figure 1 As shown, the device includes: a test device 10 , a recording module 20 , a first computing module 30 , a second computing module 40 and a third recording module 50 .
[0044] Among the...
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The invention discloses a power battery heating power test device and method. The device comprises a test device used for power battery heating power test and furthermore comprising insulation materials, aluminum foil and at least three temperature sensors; a recording module used for recording temperatures of the power battery, the insulation materials and the aluminum foil when a power battery charges and discharges so as to obtain the initial temperature and highest temperature of the power battery, the insulation materials and the aluminum foil; a first calculating module used for calculating the value of caloric absorbed by the power battery; a second calculating module used for calculating the value of caloric absorbed by the insulation materials; and a third calculating module used for calculating the heating power of the power battery under preset multiplying power according to the value of caloric absorbed by the power battery and the value of caloric absorbed by the insulation materials. The device has the characteristics of high precision and economy in calculating power battery heating power.
Description
technical field [0001] The invention relates to the technical field of batteries, in particular to a device and method for testing heat generation power of power batteries. Background technique [0002] In the related art, there are two commonly used methods for testing the heat generation power of a power battery. One is to test in an adiabatic accelerated calorimeter such as ARC, but this method is expensive to test. The other is to test the temperature rise of the battery in a natural environment as in the patent CN104569836A, and divide the heat of the battery into three parts, the heat of natural convection between the outer surface of the battery and the air, the radiation heat between the surface of the battery and the outside world, and the heat stored in the battery itself. The heat generated is the sum of these three kinds of heat. However, in this method, the convective heat transfer coefficient between the battery surface and the environment and the heat radiat...
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IPC IPC(8): G01R31/36
Inventor 欧阳陈志程永周刘宇强王诗涛孟斐李彦良
Owner BEIJING ELECTRIC VEHICLE