Method for manufacturing electric vehicle battery case and electric vehicle battery case
AssigneeKobe Steel, Ltd.
InventorHideki Ishitobi
Life of this patent
Estimating the term…
Abstract
A method for manufacturing an electric vehicle battery case includes: preparing a frame configured to define a through space inside and a flat plate made of resin; superposing and disposing the flat plate on the frame; and applying pressure to the flat plate from an opposite side from the frame to press the flat plate against the frame to cause the flat plate to swell in the through space, thereby deforming the flat plate into a tray having a bathtub shape including a bottom wall and a peripheral wall provided at a peripheral edge of the bottom wall and configured to define an opening portion, and joining by press-fitting the tray to the frame.
Claims19
A method for manufacturing an electric vehicle battery case, the method comprising:
- preparing a frame configured to define a space inside and a member to be formed made of resin;
- superposing and disposing the member to be formed on the frame;
- and
- applying pressure to the member to be formed from an opposite side from the frame to press the member to be formed against the frame to cause the member to be formed to swell in the space, thereby deforming the member to be formed into a tray having a bathtub shape including a bottom wall and a peripheral wall provided at a peripheral edge of the bottom wall and configured to define an opening portion, and integrating the tray with the frame.
An electric vehicle battery case comprising:
- a frame made of metal configured to define a space inside;
- and
- a tray made of resin and having a bathtub shape, the tray including a bottom wall positioned in the space, a peripheral wall provided around the bottom wall and configured to define an opening portion on an opposite side from the bottom wall, and a flange provided at a tip of the peripheral wall, the tray being integrated with the frame,
- wherein a negative angle portion in which a negative angle directed at least partially inward from the bottom wall toward an opening portion of the tray is provided.
Dependencies are inferred from the claim text.