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Cold and hot integrated box body structure

A box structure, hot and cold technology, applied in structural parts, electrochemical generators, electrical components, etc., can solve the problems of increased costs, high process and assembly requirements, and high assembly requirements for liquid cooling systems and heating systems, and achieves savings. Procurement cost, strong design flexibility, compact structure

Active Publication Date: 2017-07-07
TIANJIN ENERGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the battery pack liquid cooling system mainly fixes cooling devices such as cold plates inside the box through bolting, riveting, welding, bonding, etc., which requires high technology and assembly, low efficiency in mass production, and structural strength Low, and there will be a risk of liquid leakage; the heating system is traditionally designed with a heater, which requires high assembly requirements and occupies a certain amount of space
Liquid cooling and heating systems add cost, require more space and mass

Method used

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  • Cold and hot integrated box body structure
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  • Cold and hot integrated box body structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as Figure 1-7 As shown, the integrated cooling and heating box structure of this embodiment is a single-layer structure, specifically, as figure 1 As shown, the box structure includes a box body with an upper opening. The box body includes a bottom plate 1 and a side plate 2. The bottom plate 1 and the side plates 2 enclose a storage cavity for accommodating batteries. Inside the bottom plate 1 are alternately arranged liquid Cooling system and heating system.

[0054] Such as figure 2 , Figure 4 and Figure 5 As shown, the side plate 2 is provided with a fluid inlet 3 and two fluid outlets 4 (one in and two out), which communicate with the liquid cooling system. The fluid inlet 3 is arranged in the middle of one side plate 2, and the two fluid outlets 4 It is symmetrically arranged at both ends of the side plate 2 . Such as Figure 6 As shown, the liquid cooling system is a coolant flow channel 5 distributed in a serpentine shape inside the bottom plate 1...

Embodiment 2

[0062] The integrated cooling and heating box structure of this embodiment is a double-layer structure (such as Figure 12 and Figure 13 shown), specifically, as Figure 8 As shown, the box structure includes a box body with an upper opening. The box body includes a bottom plate 1 and a side plate 2. The bottom plate 1 and the side plates 2 enclose a storage cavity for accommodating batteries. Inside the bottom plate 1 are alternately arranged liquid Cooling system and heating system.

[0063] Such as Figure 14 and Figure 15 As shown, the side plate 2 is provided with a fluid inlet 3 and two fluid outlets 4 (one in and two out), which communicate with the liquid cooling system. The fluid inlet 3 is arranged in the middle of one side plate 2, and the two fluid outlets 4 It is symmetrically arranged at both ends of the side plate 2 . Such as Figure 6 As shown, the liquid cooling system is a coolant flow channel 5 distributed in a serpentine shape inside the bottom plat...

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Abstract

The invention provides a cold and hot integrated box body structure comprising a main body of a box body with an upper opening, wherein the main body of the box body comprises a bottom plate and a side plate, the bottom plate and the side plate are used for constituting an accommodation cavity for accommodating a battery, a liquid cooling system and a heating system are alternately distributed in the bottom plate, at least one fluid inlet and at least one fluid outlet communicated with the liquid cooling system are formed in the side plate, the liquid cooling system is cooling fluid flow channels distributed in the bottom plate in a snake shape, the heating system comprises a first hollow cavity arranged between cooling fluid flow channels and a heating device padded in the first hollow cavity, and a flow channel bridge used for changing the flow direction of the fluid is arranged at the reserving site of the cooling fluid flow channel. According to the box body structure provided by the invention, the liquid cooling system, the heating system and a heat insulation system are highly integrated with the section bar box body, thereby improving the weight energy density ratio and the volume energy density ratio of the battery and reducing and even eliminating the fluid leakage risk of the cooling fluid.

Description

technical field [0001] The invention belongs to the field of battery boxes, and in particular relates to a cooling and heating integrated box structure. Background technique [0002] With the rapid development of the new energy vehicle market, the demand for innovation in thermal management technology, integration, and integrated technology is becoming more and more intense. With the increase in energy, the heat generated by the battery is also increasing. And natural cooling can no longer meet the requirements of heat dissipation. In the event of an accident, if the heat cannot be exported in time, it will easily cause the thermal runaway of the battery; and because the antifreeze has a high specific heat capacity, it can take away a large amount of heat per unit time. The cold solution can better meet the heat dissipation requirements of the battery module. In addition, when the battery is at low temperature, the battery system is generally heated by the PTC before chargin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/615H01M10/625H01M10/6556H01M10/6571H01M10/6572H01M10/658H01M10/6568H01M50/249
CPCH01M10/613H01M10/615H01M10/625H01M10/6556H01M10/6568H01M10/6571H01M10/6572H01M10/658H01M2220/20H01M50/20Y02E60/10
Inventor 伊炳希从长杰陈保国彭月猛豆卫广赵博文于江梁宏伟王驰伟
Owner TIANJIN ENERGIES
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