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Battery case

A battery box and box body technology, which is applied in the direction of batteries, battery boxes/jackets, battery pack components, etc., can solve the problems of difficulty in forming rebound, low strength, and thick thickness of reinforcing members, and achieves improved assembly performance, high resistance Deformability, the effect of reducing the number of parts

Active Publication Date: 2021-07-23
浦项股份有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] When formed from an extruded material of aluminum, the reinforcement member can be easily manufactured into various shapes, but the reinforcement member is relatively expensive and has lower strength than steel, so that the thickness of the reinforcement member becomes thicker, thereby limiting the weight reduction
[0006] Meanwhile, in the case of steel materials, an ultra-high-strength material having a tensile strength of about 980 MPa or more is used to reduce weight, and this ultra-high-strength material has a problem that it is difficult to form and a large amount of springback occurs
In order to improve the rebound, several or dozens of corrections are required, and in some cases there is a problem of not being easy to assemble due to inconsistent parallelism between parts

Method used

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Embodiment Construction

[0020] Hereinafter, the present disclosure will be described in detail. It should be noted that when adding reference numerals to elements in each drawing, even if the same elements are indicated on different drawings, the same elements are assigned the same reference numerals as much as possible. Also, in describing the present invention, if it is determined that a detailed description of a related known configuration or function would obscure the subject matter of the present disclosure, the detailed description will be omitted.

[0021] figure 1 is a perspective view of the battery case, and figure 2 is along figure 1 A cross-sectional view taken along line A-A of , and is a cross-sectional view of a side frame of a battery case according to an embodiment of the present disclosure.

[0022] According to an embodiment of the present disclosure, a battery case includes a case body 1 having a plate 2 and a side frame 3 surrounding the plate, wherein the side frame 3 includ...

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Abstract

The present invention relates to a battery case which is made from a steel material, thereby providing a cross-section similar to that of an extruded material and having improved impact resistance properties, and at the same time, enabling the reduction of costs through the integration of components, the battery case comprising a case main body having a plate and a lateral frame enclosing the plate, wherein the lateral frame comprises a hollow part inside thereof, a reinforcement part which traverses the hollow part at a portion between side walls on both sides, or protrudes into the hollow part from at least one of the side walls, and a shock absorption part which is formed by the reinforcement part being bent or curved.

Description

technical field [0001] The present invention relates to a battery case made of steel and capable of improving impact resistance. Background technique [0002] A battery installed in a vehicle, such as an electric vehicle or a hybrid vehicle, may cause a fire or explode in the event of a vehicle collision, causing serious damage to the driver and passengers. In order to prevent this from happening, reinforcement members are also provided in the battery itself in addition to the crash reinforcement members of the vehicle body which are intended for a crash event. [0003] The reinforcing member of the battery can be installed mainly inside or outside of the battery case. [0004] For example, when aluminum is used, the side walls of the battery case may themselves be formed from extruded material, whereas in the case of steel, the reinforcing members are incorporated into the interior of the battery case. [0005] When formed from an extruded material of aluminum, the reinfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/224H01M50/242H01M50/244H01M50/236H01M50/249H01M50/204H01M50/227
CPCY02E60/10H01M50/207H01M50/224H01M50/242H01M50/249H01M50/276H01M2220/20H01M50/204H01M50/227H01M50/20H01M50/116H01M50/119
Inventor 郑基锡魏祥权金燉键
Owner 浦项股份有限公司
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