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Extendable liquid-cooling battery module for electric vehicle

A liquid-cooled battery and electric vehicle technology, applied in batteries, secondary batteries, circuits, etc., can solve the problems of uniform temperature distribution, poor scalability of battery module structure, small temperature difference between cells, etc., to achieve scalability, system The effect of small pressure loss and uniform temperature distribution

Pending Publication Date: 2017-01-04
BEIJING BOSTON POWER BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an expandable liquid-cooled battery module for electric vehicles, which solves the problems that the existing liquid-cooled battery pack is difficult to ensure small temperature difference between cells, uniform temperature distribution and poor structural scalability of the battery module

Method used

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  • Extendable liquid-cooling battery module for electric vehicle
  • Extendable liquid-cooling battery module for electric vehicle
  • Extendable liquid-cooling battery module for electric vehicle

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] Such as Figure 1 to Figure 5 As shown, this embodiment provides an expandable liquid-cooled battery module for electric vehicles, and its heat conduction principle is as follows figure 1 As shown, the expandable liquid-cooled battery module of the present invention uses parallel water-cooled plates 4 to dissipate heat from the positive busbar and negative busbar of the basic battery module, and then conducts active thermal management on the power battery of...

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Abstract

The invention discloses an extendable liquid-cooling battery module for an electric vehicle. The extendable liquid-cooling battery module comprises at least one basic battery module, wherein each basic battery module comprises a battery cell, a positive busbar and a negative busbar, the positive busbar and the negative busbar are respectively welded on a positive terminal and a negative terminal of the battery cell, the basic battery module also comprises insulation heat conduction foam, water-cooling plates and a plastic support, the insulation heat conduction foam and the water-cooling plates are respectively and sequentially arranged at outer sides of the positive busbar and the negative busbar, the plastic support is arranged at the outer side of one of the water-cooling plates, a plastic main runner is arranged between the two water-cooling plates, an inlet and an outlet of each water-cooling plate respectively communicate with the plastic main runner, a runner which communicates with the plastic main runner is arranged at the bottom of two side walls of the plastic support, and metal press plates are respectively and fixedly arranged at two ends of the outermost side of the extendable liquid-cooling battery module. By the liquid-cooling battery module, the extendibility of the liquid-cooling battery module is achieved, moreover, the purpose of reducing the temperature of the battery cell is achieved, and the extendable liquid-cooling battery module has the advantages that the temperature distribution among the battery cells is uniform.

Description

technical field [0001] The invention relates to the technical field of pure electric vehicles, oil-electric hybrids or energy storage power systems, in particular to an expandable liquid-cooled battery module for electric vehicles. Background technique [0002] The main cooling methods currently used for battery modules are: natural convection heat transfer, forced air cooling and forced liquid cooling. Therefore, the current mainstream battery modules are divided according to cooling methods: ordinary battery modules, which are cooled by natural heat exchange; air-cooled battery modules, which are cooled by forced air cooling; and liquid-cooled battery modules, which are cooled by forced air Liquid cooling. Natural convection heat transfer means that the battery module does not use additional equipment with active cooling or temperature control functions, and only relies on passive heat exchange between the battery itself and the external environment. Forced air cooling r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/617H01M10/625H01M10/6567H01M10/6568
CPCH01M2220/20Y02E60/10
Inventor 阳玉龙刘明明叶国华伯儒尔杨·罗格林纳
Owner BEIJING BOSTON POWER BATTERY
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