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Power battery module of electric vehicle and electric vehicle

A technology for electric vehicles and power batteries, applied in the field of electric vehicle power battery modules and electric vehicles, can solve the problems of large size and small installation space, improve energy density and capacity, occupy small space, and improve vibration resistance and resistance. impactful effect

Pending Publication Date: 2018-09-11
江苏和中普方新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an electric vehicle power battery module and an

Method used

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  • Power battery module of electric vehicle and electric vehicle
  • Power battery module of electric vehicle and electric vehicle
  • Power battery module of electric vehicle and electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as Figure 1-Figure 11 As shown, an electric vehicle power battery module in this embodiment includes a battery cell 100, an upper cover 200, at least one middle end plate 400, two opposite end plates 300 and two opposite side plates 600, The two end plates 300 are respectively welded to the two side plates 600 to form a shell that is open up and down, and at least one of the middle end plates 400 is welded to the two side plates 600 respectively and the The inner space of the housing is divided into at least two installation cavities, each of which has several battery cells 100 installed therein, and the upper cover 200 is installed on the upper end of the housing. Wherein, the structure of the end plate 300 and the middle end plate 400 is the same, and the middle end plate 400 and the end plate 300 are arranged in parallel. In fact, the side plates of this embodiment are welded to the end plates and the middle end plates respectively by laser galvanometer weldin...

Embodiment 2

[0064] Such as figure 1 and image 3 As shown, on the basis of Embodiment 1, the battery module of this embodiment can also be between the adjacent cells 100, between the cells 100 and the end plates 300, and between the cells 100 Between the middle end plate 400 and the limit frame 500 that limits the surroundings of the battery core 100, the upper end of the limit frame 500 protrudes from the housing and is connected to the edge of the upper cover 200. Card access. In this embodiment, a limit frame is provided on one side of the battery cell, which can realize the limit of the battery cell in the up, down, left, and right directions, making the entire module structure more stable; and it is also convenient to clamp and fix the upper cover. That is to say, in this embodiment, adjacent battery cells, battery cells and end plates, and battery cells and intermediate end plates are all spaced apart, and the up, down, left, and right directions of the cells are limited to preven...

Embodiment 3

[0084] An electric vehicle includes a vehicle body and the above-mentioned battery module for powering the vehicle body.

[0085] In the electric vehicle of this embodiment, the overall installation structure of the battery module is formed by connecting the middle end plate, the end plate and the side plate, so that the number of battery cells accommodated by the battery module is increased, which is even equivalent to two or more independent modules. Compared with two or more independent modules, the present invention reduces the size in the length direction, increases the length of the module, takes up less space, improves the unity of the module, and saves battery internal space. Space, the overall structure of the module is more compact, which improves the space utilization rate, thereby increasing the energy density and capacity of the entire battery system; and the number of components used is also reduced, achieving the effect of weight reduction; in addition, the setti...

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Abstract

The invention relates to a power battery module of an electric vehicle and an electric vehicle. The power battery module comprises cells, an upper cover, a middle end plate, two oppositely arranged end plates, and two oppositely arranged lateral plates. Two end plates are respectively welded to two lateral plates to form a shell without any bottom surface or a top surface. The middle end plate iswelded to two lateral plates so as to divide the interior of the shell into at least two installation cavities. Multiple cells are installed in each installation cavity. The upper cover is arranged onthe upper end of the shell. The overall installation structure is formed by connecting the middle end plate, the end plates, and the lateral plates, the number of stored cells is increased, the number of stored cells is equal to the number of cells of two or more individual modules, compared with two or more individual modules, the size is reduced in the length direction, the module length is increased, the occupied space is small, the uniformity of the module is increased, the inner space is saved, the whole structure of the module is more compact, the space utilization rate is increased, and thus the energy density and capacity of the whole battery system are both increased.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to an electric vehicle power battery module and an electric vehicle. Background technique [0002] At present, the global automobile industry is facing the huge challenge of energy and environmental issues; pure electric vehicles with high energy utilization rate and no pollution to the environment are increasingly becoming the development direction of the future automobile industry. As the core component of a pure electric vehicle, the performance of a power battery will directly affect the performance of a pure electric vehicle. In order to meet the mileage requirements of electric vehicles and achieve a predetermined voltage and capacity, multiple lithium-ion batteries need to be connected in series or in parallel to form a power battery module. The power battery module will be subject to certain vibration and shock during the driving process of the car. In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10B60L11/18H01M50/249
CPCB60L50/64H01M50/20Y02T10/70Y02E60/10
Inventor 柴成广井涛单长征王小龙盛力
Owner 江苏和中普方新能源科技有限公司
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