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Power battery box having end plate-free battery modules

A technology of battery modules and power batteries, which is applied to battery components, batteries, circuits, etc., can solve problems affecting volumetric energy density, instability, and poor safety, so as to avoid unreliable structures, save space, and improve energy effect of density

Inactive Publication Date: 2018-02-02
ZHONGJU HANGZHOU NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are roughly the following designs for power battery boxes: (1) Modules with end plates are put into the box, which has the following disadvantages: first, the end plates occupy the space of the power battery box and affect the volumetric energy density; second, the weight of accessories such as end plates is relatively heavy. Large, reducing the energy density of the entire power battery box
(2) No-module form, that is, simply bulk-pack the battery cells into boxes and press them to fix them, which has the disadvantages of being weak and poor in safety
(3) The battery cell and the outer shell are fixed by integral glue, which has the advantage of high overall strength, but this grouping method has high requirements on the performance of the single battery cell and the technical requirements of the battery group PACK. When a single battery cell appears In case of failure, the entire power battery box needs to be replaced and repaired, which will cause a substantial increase in the entire after-sales maintenance cost
These shortcomings restrict the rapid promotion and application of power battery systems in the new energy industry

Method used

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  • Power battery box having end plate-free battery modules
  • Power battery box having end plate-free battery modules
  • Power battery box having end plate-free battery modules

Examples

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Embodiment Construction

[0125] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.

[0126] Such as Figure 1-12 As shown, the power battery box 10 includes: a housing assembly 100 , several battery modules 200 (battery modules 200 without end plates) and a fixing assembly 300 . The housing assembly 100 includes a housing. The battery module 200 is located in the casing. The fixing component 300 is press-fitted on the battery module 200 and connected with the outer casing, so that the battery module 200 is fixed relative to the outer casing. in figure 1 It is an exploded view of the power battery box 10, and internal components can be seen; Figure 4 It is a three-dimensional view of the power battery box 10 after assembly, and the internal structure cannot be seen.

[0127] The outer casing includes: an upper casing 100 and a lower casing 120 . Wherein, the upper case 100 is covered on the lower case 12...

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Abstract

The invention discloses a power battery box having an end plate-free battery module. The power battery box comprises: a shell assembly comprising a shell body; a plurality of battery modules positioned in the shell body; and a fixing assembly arranged on the battery modules and connected with the shell body in order to make the battery modules fixed to the shell body. The power battery box adoptsthe cooperation of the battery modules with the fixing assembly, so a reliable structure caused by loose packaging of battery cells is avoided; the defects of high technology difficulty and maintenance inconvenience caused by integral gluing of the battery cells and the shell body are avoided; and there is no need to arrange an end plate on every battery module, and the battery modules are fixed by using the fixing assembly, so the space is saved to a certain degree, and the energy density of the power battery box is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a power battery box with an endless battery module. Background technique [0002] With the improvement of people's living standards, people's demand for cars is increasing. But at the same time, the problems of global environmental pollution and oil shortage are becoming more and more serious. Mineral energy sources such as traditional oil, gas and gas will soon be depleted, and the oil situation is very serious. It is against such a background that hybrid electric vehicles / electric vehicles (HEV / EV) emerge as the times require. As the main power source of HEV / EV, lithium batteries have gradually replaced lead-acid batteries and nickel-metal hydride batteries due to their advantages such as high specific energy, long cycle life, no pollution, and no memory effect, and are used in electric vehicles, backup power supplies, etc. field. [0003] Because large vehicles such as e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M50/249
CPCH01M2220/20H01M2220/10H01M50/20Y02E60/10
Inventor 陈帅帅梁铨邓华才赵亚飞赵政威
Owner ZHONGJU HANGZHOU NEW ENERGY TECH CO LTD
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