Battery inner box and battery temperature control box employing battery inner box

Abstract

The invention relates to a battery inner box and a battery temperature control box employing the battery inner box. The battery inner box comprises an inner box cover plate, an inner box bottom plate, and inner box side plates which are arranged between the inner box cover plate and the inner box bottom plate. The battery inner box is characterized in that the inner box cover plate, the inner box bottom plate and the inner box side plates enclose a closed storage battery accommodation cavity which is used for accommodating a corresponding storage battery; the inner box cover plate is made of a heat conduction material; and outer heat conduction fins and inner heat conduction fins, which are backward, are respectively arranged on the top and bottom surfaces of the inner box cover plate. The invention provides the battery inner box which can prevent entry of damp air and has a good radiating effect.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a battery inner box for a storage battery and a battery temperature control box using the battery inner box. Background technique [0002] With the continuous rise of oil prices, in order to reduce dependence on oil resources, governments of various countries vigorously advocate energy-saving and new energy technologies, so that electric vehicles have been vigorously promoted. The huge demand for electric vehicles has promoted the continuous progress of battery technology. At present, lithium-ion batteries are Its excellent performance is generally recognized by electric vehicle manufacturers, and is used in some mass-produced models, such as Japan's LEAF, GM's VOLT, etc. The Chinese government promotes the demonstration operation of electric vehicles in some cities through the "Ten Cities, Thousand Vehicles" policy . However, because lithium-ion batteries, especially li...

AI Technical Summary

Problems solved by technology

The existing heat pipe temperature control system has the following problems: 1. The heating and cooling of the battery needs to frequently change the inner box cover to a thermal insulation board and a heat dissipation board. The operation is very cumbersome and the labor intensity of the operator is relatively high; The heat dissipation effect of the heat dissipation plate is not ideal, which requires that heat dissipation holes must be provided on the heat preservation plate of the inner box, and the existence of heat dissipation holes will cause two problems, (1), part of the heat of the heating device is released by the heat dissipation holes In the process of heating to a suitable temperature, the heating device consumes more power. (2) The heat dissipation holes make the battery inner box not in a sealed state. In rainy and humid areas, humid gas will enter the battery through the cooling fan Inner box, the high-voltage insulation problem inside the battery inner box becomes very prominent, and dust will also enter through the heat dissipation holes; 3. The heat dissipation principle of the heat dissipation holes is that the air blown by the heat dissipation fan flows to dissipate heat. The fan is not working, and the battery inner box will still have a relatively high temperature at this time, and when there is no flow of air through the cooling holes, the heat dissipation effect is very poor, and it takes a long time for the battery inner box to cool from high temperature to a suitable temperature , in the case of long-term high temperature, the battery will have certain safety hazards, and the service life of the battery will also be shortened

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