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Power battery base tray and power battery module

A power battery pack, power battery technology, applied in battery pack components, batteries, secondary batteries, etc., can solve the problems of low efficiency in assembly and disassembly of liquid cooling tubes, avoid mechanical strength drop, increase supporting load, improve The effect of cooling efficiency

Active Publication Date: 2018-05-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a power battery bottom bracket, which aims to solve the problem of low efficiency in the assembly and disassembly of liquid cooling tubes

Method used

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  • Power battery base tray and power battery module
  • Power battery base tray and power battery module
  • Power battery base tray and power battery module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An embodiment of the present invention provides a power battery bottom support for supporting a power battery pack.

[0032] Such as figure 1 with figure 2 As shown, the power battery base includes a tray 100 and a liquid cooling tube 200 installed on the tray 100 . Wherein, the liquid cooling tube 200 may be made of materials with high thermal conductivity, such as metal copper, metal silver, and the like. The tray 100 includes a bottom plate 110 and side plates 120 arranged around the bottom plate 110. The bottom plate 110 and the side plates 120 together form an accommodating cavity (not marked in the figure) for accommodating a power battery pack. At least one beam 300 is arranged on the bottom plate 110. A transverse beam 300 may preferably be arranged across. Each beam 300 divides the base plate 110 into at least two sub-base plates 111, the liquid cooling tube 200 is laid on at least one of the sub-base plates 111, and the liquid cooling tube 200 straddles th...

Embodiment 2

[0048] like image 3 As shown, the difference between the second embodiment and the first embodiment lies in the connecting pipe set 214. Specifically, the connecting pipe set 214 includes two confluence pipes 2144, wherein one confluence pipe 2144 communicates with the liquid inlet pipe 211, and the other confluence pipe 2144 communicates with the liquid outlet pipe 212, and the two confluence pipes 2144 straddle the crossbeams 300 they pass through respectively. Specifically, one end of the fitting pipe 213 communicates with a confluence pipe 2144, and the other end communicates with another confluence pipe 2144; at the same time, the above-mentioned fitting pipe 213 includes at least two, so that at least two fitting pipes 213 are arranged in parallel, When the medium enters the bonding pipes 213 arranged in parallel through a confluence pipe 2144 , they all have approximately the same temperature, which is beneficial to balance the heat absorption capacity of the bonding p...

Embodiment 3

[0052] The difference between the third embodiment and the second embodiment lies in the connecting tube group, which also includes a fourth connecting tube for connecting the two laminating tubes, the fourth connecting tube straddles the crossbeam it passes through, and the fourth connecting tube is at least There is one, that is, at least two bonding tubes are connected in series before they are connected to the manifold instead of being directly connected to the two manifolds. Based on this structure, the liquid cooling tube has bonding tubes arranged in series and parallel. The fitting tubes arranged in this way are beneficial to comprehensively utilize the advantages of the fitting tubes being arranged in series and in parallel, and can be arranged according to specific heat dissipation requirements.

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Abstract

The invention provides a power battery base tray and a power battery module, wherein the power battery base tray includes a tray and a liquid cooling tube installed on the tray. The power battery basetray and the power battery module are characterized in that the tray includes a bottom plate and side plates arranged around the bottom plate, the bottom plate and the side plates together form a receiving cavity for accommodating a power battery pack, at least one cross beam is arranged on the bottom plate, and the cross beam divides the bottom plate into at least two sub-bottom plates. The liquid cooling tube is laid on at least one of the sub-bottom plates, and the liquid cooling tube spans across the cross beam. The liquid cooling tube spans across the cross beam so that the liquid cooling tube is not need to be assembled to the tray, then the cross beam is installed on the tray, the assembly efficiency of the liquid cooling tube to the tray is improved, and the assembly efficiency ofa finished product assembly phase is facilitated. When the liquid cooling tube is disassembled, the liquid cooling tube is not needed to be disassembled after the cross beam is detached from the tray, thereby improving disassembly efficiency of the liquid cooling tube.

Description

technical field [0001] The invention belongs to the field of electric vehicles, and in particular relates to a power battery bottom bracket and a power battery module. Background technique [0002] In electric vehicles, the power battery base is used to support the power battery pack, including the tray and the liquid cooling tube installed on the tray. Among them, in order to strengthen the support load of the tray, the tray is equipped with a beam, and the liquid cooling pipe is also laid on the tray, and the beam needs to be provided with perforations for the liquid cooling pipe to pass through. It is necessary to assemble the liquid cooling tubes to the panel before installing the crossbeams to the panel, which makes the assembly of the liquid cooling tubes time-consuming, which means that there is a problem of low assembly efficiency of the liquid cooling tubes. When assembling the liquid cooling tubes, It is often already at the finished product assembly stage, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6567H01M10/6556H01M50/204H01M50/249
CPCH01M10/613H01M10/625H01M10/6556H01M10/6567H01M50/204H01M2220/20Y02E60/10H01M50/244H01M50/258H01M50/20
Inventor 曾毅郑卫鑫朱建华朱燕
Owner BYD CO LTD
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