Battery temperature control device
A battery temperature control and battery module technology, which is applied to secondary batteries, circuits, electrical components, etc., to achieve the effects of power consumption, energy saving, low power consumption, and low cost
Active Publication Date: 2014-03-19
SICHUAN CAMY NEW ENERGY CO LTD
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Problems solved by technology
[0005] The Chinese patent application number 201210182342 uses a semiconductor cooler to control the temperature of the secondary battery. The patent only proposes to use a semiconductor cooler to control the temperature of the lithium battery, but how to maintain the consistency of multiple single batteries and how to Specific issues such as allowing the cooling medium to transfer heat to each Li-ion battery are not resolved
Method used
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Embodiment 1
[0032] like figure 1 In the schematic diagram of the battery temperature control device shown, the battery module 1 includes a plurality of single cells, and the marks 101, 102 and 103 in the figure represent the first single cell, the second single cell to the single single cell n, and the present invention includes a battery module 1. It also includes a first heat exchanger 201, a second heat exchanger 202 for exchanging heat with the battery module 1, and a pump 7 for pumping heat transfer medium; the output end of the first heat exchanger 201 is connected to the second heat exchanger 202, the output of the second heat exchanger 202 is connected to the input of the pump 7, and the output of the pump 7 is connected to the input of the first heat exchanger 201, and the first heat exchanger 201, The second heat exchanger 202 and the pump 7 form a loop for circulating the heat transfer medium; in addition, a semiconductor refrigerator 3 exchanging heat with the first heat excha...
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The invention relates to the technical field of lithium batteries and in particular relates to a battery temperature control device. The battery temperature control device comprises a battery module and also comprises a first heat exchanger, a second heat exchanger which exchanges heat with the battery module, a pump for pumping a heat-conducting medium, and a semiconductor cooler which exchanges heat with the first heat exchanger, wherein the output end of the first heat exchanger is connected with the input end of the second heat exchanger; the output end of the second heat exchanger is connected with the input end of the pump; the output end of the pump is connected with the input end of the first heat exchanger; the first heat exchanger, the second heat exchanger and the pump form a loop through which the heat-conducting medium circulates. The semiconductor cooler and a heat pipe are combined to control the temperature of multiple battery cells, the semiconductor cooler is supplied with power by the multiple battery cells, so that the effects of low power consumption and energy conservation can be achieved under the condition that the electric quantity of a rechargeable battery is limited. Moreover, the semiconductor cooler and the heat pipe are common instruments, and the battery temperature control device is convenient to purchase and low in cost.
Description
technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a battery temperature control device. Background technique [0002] Secondary battery products are extremely sensitive to ambient temperature due to the technical principle of electrochemical reaction. When the temperature is too low, its chemical activity decreases, resulting in a significant decrease in the effective capacity of the battery or even failure to charge and discharge. In severe cases, it will also cause irreversible changes in the battery electrolyte and positive and negative electrode structures, seriously affecting battery life. When the temperature is too high, although the battery activity is enhanced, the danger also follows. Charging and discharging at high temperature will cause the internal pressure of the battery to rise, and serious accidents such as battery explosion and fire will occur. [0003] For example, the operating environment tempera...
Claims
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IPC IPC(8): H01M10/613H01M10/6572
CPCY02E60/10
Inventor 黄逸平张列平
Owner SICHUAN CAMY NEW ENERGY CO LTD