A mortise and tenon frame for an electric vehicle battery pack
An electric vehicle, mortise and tenon technology, applied in the field of mortise and tenon frame, can solve the problems of light weight, no improvement in structural safety, limited weight reduction effect, high cost and production requirements, etc., to improve convenience and spare parts The effect of simplifying, improving and reducing maintenance cost
Active Publication Date: 2017-08-25
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
The third type has the most obvious lightweight effect, but it has high requirements on cost and production, and is only used in high-end cars and sports cars
The first type is the current mainstream electric vehicle body application form, but the weight reduction effect is very limited, and the body and battery are designed separately, and the safety of the battery is not considered at the core of the body design.
The second type of frame scheme is used by some low-speed electric vehicles, but most of them are pipe-beam structures welded by steel pipes, which have not improved in terms of light weight and structural safety.
Method used
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[0035] As shown in Figures 1 to 8. The invention discloses a mortise and tenon frame for an electric vehicle battery pack, which comprises a mortise and tenon frame structure, a battery box 8, an air-cooled heat dissipation structure and a body floor 12, and the mortise and tenon frame structure is fixed on the body The lower part of the floor 12 is fixed on the upper part of the body floor 12 by an air-cooled heat dissipation structure; the body floor 12 is formed by stamping.
[0036] The mortise and tenon frame structure is a frame structure formed by splicing four mortise and tenon tubes 3 through mortise and tenon joints 5, and the mortise and tenon tubes 3 are made of aluminum alloy. When the mortise and tenon frame structure bears static and dynamic stress, it will not produce stress concentration due to the small contact area of the connection position, and at the same time it solves the deformation problem during the welding process of aluminum alloy. The mortise t...
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The invention discloses a mortise and tenon frame for an electric vehicle battery pack, which comprises a mortise and tenon frame structure, a battery box, an air-cooled heat dissipation structure and a body floor. The mortise and tenon frame structure is fixed on the body floor. The lower part, the air-cooled heat dissipation structure is fixed on the upper part of the body floor; the mortise and tenon frame structure is a frame structure composed of four mortise tubes spliced through mortise joints, the mortise tubes are filled with foamed aluminum, and the battery box The body is fixed in the frame structure; the air-cooled heat dissipation structure includes the air duct body and the heat pipe group; the air duct body is fixed in the middle of the vehicle body floor. The structure provided by the mortise and tenon frame satisfies the strength, rigidity and collision effect of the electric vehicle body structure, and comprehensively solves the safety problems of the electric vehicle battery pack, including collision safety performance, thermal safety, bottom impact resistance, Waterproof, dustproof and easy to disassemble.
Description
technical field [0001] The invention relates to an electric vehicle frame structure, in particular to a mortise and tenon type vehicle frame of an electric vehicle battery pack. Background technique [0002] Under the background of energy conservation and emission reduction today, electric vehicles have become one of the mainstream directions for the development of new energy vehicles due to their advantages of zero emission, no pollution, high efficiency, and good power. However, cruising range and battery safety have always been two major shortcomings restricting the development of electric vehicles. The driving range is mainly related to two factors: curb quality and battery capacity. The energy density near the development bottleneck and the high battery cost limit the battery capacity of electric vehicles. Large capacity also means an increase in curb quality, blindly increasing the battery capacity. Capacity does not solve the problem of cruising range. In mainstream...
Claims
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IPC IPC(8): B62D21/09B60K11/06
Inventor 陈吉清李新贤兰凤崇
Owner SOUTH CHINA UNIV OF TECH