Cell module, and battery module and soft-package power battery applying cell module

A battery module and battery module technology, which is applied to battery components, secondary batteries, circuits, etc., can solve the problems of difficult assembly of module waterways, poor fluid flow, and poor thermal management of battery modules, etc. problem, to achieve good effect, excellent heating and cooling effect

Pending Publication Date: 2019-05-10
WM MOTOR TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the power output requirements of the battery system by automobile manufacturers and mass users are also continuously increasing. However, the heat generated by the battery pack is high in the case of high power output, and the battery system needs to conduct this part of the heat away. Moreover, China has a vast territory and a complex climate environment. Electric vehicles need to be suitable for both extremely cold and extremely hot regions. This has led to the vast majority of pure electric vehicles, the battery system of which will have a heating function. Therefore, the thermal management of the battery system has a great impact on Especially important for electric vehicles
[0003] At present, the thermal management method of active liquid cooling and active liquid heating of the battery system has become the most efficient thermal management technology for pure electric vehicle power batteries. The problem of poor thermal management of the battery module and the difficulty in assembling the waterway of the module

Method used

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  • Cell module, and battery module and soft-package power battery applying cell module
  • Cell module, and battery module and soft-package power battery applying cell module
  • Cell module, and battery module and soft-package power battery applying cell module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1~3 The cell module 1 shown includes a cell 2 and a cell support 3; the cell support 3 includes a module frame 4 made of plastic, and the module frame 4 includes a frame body with a rectangular outer contour. A hollow hole 5 with a rectangular cross-sectional profile is provided in the center, and the hollow hole 5 runs through the entire module frame 4 along the thickness direction of the module frame 4; in the frame body, the hollow hole 5 is formed around the circumference of the heat sink for fixing the battery core 2 The fixed edge 6 of the position; the lower side of the frame body is provided with a water inlet 7 and a water outlet 8, and the water inlet 7 and the water outlet 8 also run through the entire module frame 4 along the thickness direction of the module frame 4, and the water inlet 7 and the water outlet The water port 8 is isolated from the empty hole 5 , and the liquid flowing in the water inlet 7 and the water outlet 8 cannot flow to...

Embodiment 2

[0041] Such as Figure 4~6The shown battery module includes an intermediate bracket 12, the outer contour shape of the intermediate bracket 12 is similar to the outer contour shape of the cell bracket 3, the bottom of the intermediate bracket 12 is provided with a main water inlet 13 and a main water outlet 14, the middle bracket The lower side of 12 is provided with a water inlet channel 15 communicating with the main water inlet 13 and a water outlet channel (not shown in the figure) communicating with the main water outlet 14 . A plurality of cell modules 1 are evenly arranged on both sides of the middle support 12 . The cell modules 1 adopt the design described in Embodiment 1, and the number of cell modules 1 can be determined according to actual production requirements.

[0042] The battery modules 1 arranged on both sides of the middle support 12, the water inlets 7 of the adjacent battery modules 1 are connected in sequence and communicate with the water inlet channel ...

Embodiment 3

[0045] Such as Figure 7 , 8 The soft pack power battery shown includes an upper case 19 and a lower case 20 that are covered with each other. The upper case 19 and the lower case 20 are covered to form a cavity 21 with front and rear openings, and the cavity 21 is installed There is a battery module as described in Example 2. An initial water inlet 22 communicating with the main water inlet 13 and an initial water outlet 23 communicating with the main water outlet 14 are provided on the lower housing 20, so that the soft pack power battery can be placed in the lower box and fixed directly with the lower box. The waterway connection simplifies the assembly and application of the pouch power battery and facilitates maintenance.

[0046] In the third embodiment, the cell module 1 is equipped with a confluence acquisition component 24 for realizing high-voltage connection and voltage and temperature signal acquisition, and a module cover plate 25 is installed on the outside of ...

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PUM

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Abstract

The invention discloses a cell module. The cell module comprises a cell and a cell support used for installing the cell; the cell support comprises a module framework made of an insulating material, wherein a hollow hole, a water inlet and a water outlet are formed in the module framework; the hollow hole, the water inlet and the water outlet are isolated from each other; a radiating fin is arranged in the module framework, and the radiating fin is exposed outside through the hollow hole, and the cell is attached to the radiating fin through the hollow hole; a fluid tube capable of exchangingheat with the radiating fin is further arranged in the module framework, and the fluid tube is arranged around the radiating fin and is connected with the radiating fin; and the fluid tube extends into the water inlet and the water outlet, and a fluid channel communicated with the water inlet and the water outlet is arranged in the fluid tube. The invention further discloses a battery module and asoft-package power battery applying the cell module. The cell module has the advantages of being excellent in cell heating and cooling effects, uniform in heat field of the battery module and convenient to assemble, and high in heat management effect of the soft-package power battery.

Description

technical field [0001] The invention relates to a power battery, in particular to a battery module, a battery module using the same, and a soft pack power battery. Background technique [0002] Electric vehicles are the future development trend of automobiles, and the power batteries supporting electric vehicles are also constantly being updated and developed. At present, the main types of power batteries used in the electric vehicle industry are lithium iron phosphate and ternary systems. However, ternary lithium-ion batteries have relatively high requirements for use at high and low temperatures, which has led to higher and higher quality requirements for car manufacturers and mass users on other parts inside the electric vehicle battery system. At the same time, the power output requirements of the battery system by automobile manufacturers and mass users are also continuously increasing. However, the heat generated by the battery pack is high in the case of high power o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/6557H01M10/6568H01M2/10H01M50/249
CPCY02E60/10
Inventor 贾倩
Owner WM MOTOR TECH GRP CO LTD
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