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High-ratio power battery liquid-cooling system

A power battery, high-rate technology, applied in secondary batteries, battery pack components, circuits, etc., can solve problems such as reduced cooling efficiency, battery system capacity limitations, and inability to meet battery system operating requirements, and achieve mileage and battery life. Longer life and easier installation and connection

Active Publication Date: 2013-10-30
BEIJING PRIDE NEW ENERGY BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of scheme can only put one layer of batteries in the vertical direction, which limits the capacity of the battery system
Because placing multi-layer batteries will make the installation and connection of the batteries very difficult, and usually reduce the cooling surface of each battery to one, which reduces the cooling efficiency and cannot meet the working requirements of the battery system under high-rate charging and discharging.

Method used

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  • High-ratio power battery liquid-cooling system
  • High-ratio power battery liquid-cooling system
  • High-ratio power battery liquid-cooling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The top view plan layout of a liquid cooling system for a high-rate battery is as follows: figure 1 As shown, the system includes a battery 4, a module frame 6, a liquid cooling wall 9 and other components. The battery 4 is placed in the module rack 6 . The module frame 6 is placed in a space surrounded by the liquid cooling wall 9, the shroud 1 and the liquid collecting plate 5. The module racks 6 are arranged in four rows, each row has three module racks 6, and a total of 12 module racks 6 are placed in the entire liquid cooling system. Each row of module racks 6 is separated by a liquid cooling wall 9 . from figure 1 It can be seen from the figure that both sides of each module frame 6 are liquid-cooled walls 9.

[0033] Such as figure 1 , Image 6 As shown: the interior of the liquid cooling wall 9 is provided with a rectangular liquid cooling tube 15, and part of the wall surface of the rectangular liquid cooling tube 15 protrudes from the wall surface of the...

Embodiment 2

[0045] The difference between this example and embodiment 1 is: a small liquid cold plate 16 is installed on the module frame 6, see Figure 5 , replacing the T-shaped heat conducting plate 8 in Example 1. One side of the liquid cooling plate 16 is in contact with the battery 4 in the module frame 6 . The liquid cooling plate 16 is provided with a liquid cooling tube, and the liquid cooling tube in the liquid cooling plate can communicate with the liquid cooling tube in the liquid cooling wall through the hose 17 and the joint 18, as long as the corresponding positions on the liquid cooling wall 9 are opened. It is good to connect the hole. In this way, the liquid coolant in the liquid cooling wall 9 can flow through the liquid cooling plate 16 to take away part of the heat from the battery 4 .

[0046] In this example, the liquid cooling wall 9 does not need to be slotted, which can make the arrangement of the liquid cooling tubes in the liquid cooling wall 9 more flexible, ...

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Abstract

The invention provides a high-ratio power battery liquid-cooling system. The high-ratio power battery liquid-cooling system comprises batteries, module carriers and liquid cooling walls, and is characterized in that the module carriers are arranged side by side, the rows of module carriers are separated from one another through the liquid cooling walls, rectangular liquid cooling pipes are arranged inside each liquid cooling wall, the wall face of each rectangular liquid cooling pipe partially protrudes out of the wall face of the corresponding liquid cooling wall and can be in contact with the corresponding battery through an opening on one side of the corresponding module carrier, and a convex heat conduction plate is installed on the other side of one module carrier and can be inserted into a groove of one liquid cooling wall to be in contact with the liquid cooling wall. By the high-ratio power battery liquid-cooling system, a multi-surface liquid-cooling scheme can be provided for a high-ratio charge-discharge battery system, the service life of the battery can be prolonged, and the traveling distance of an electric vehicle increases.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a liquid cooling system for a battery box of an electric vehicle. Background technique [0002] With the improvement of human's requirements for environmental protection, the research and application of electric vehicles have attracted more and more attention. Since the current single battery cannot meet the power requirements of electric vehicles, the power of electric vehicles is provided by a battery box with multiple batteries. In order to ensure that electric vehicles can work safely and normally in various environments, the battery box usually needs to have a cooling system. Liquid cooling is a common technical solution in high temperature environments. Its purpose is to provide efficient cooling for the cells and enable each cell to operate in a near-uniform environment. A common solution is to place the battery on a horizontal liquid cooling plate, which is in contact ...

Claims

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Application Information

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IPC IPC(8): H01M10/50H01M2/10H01M50/24H01M50/244H01M50/249
CPCY02E60/12Y02E60/10
Inventor 商平张国
Owner BEIJING PRIDE NEW ENERGY BATTERY
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