Battery modules and cars
A battery module and battery technology, which is applied in the direction of batteries, secondary batteries, battery covers/end covers, etc., can solve the problems of low detection efficiency, long time consumption, and inability to realize rapid detection of high-risk areas of sealed leakage.
Active Publication Date: 2021-11-12
BYD CO LTD +1
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Problems solved by technology
However, this detection method needs to fill a large amount of gas, and it takes a long time, the detection efficiency is low, and it cannot realize the rapid detection of high-risk areas of seal leakage
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[0038] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the embodiments of the present invention.
[0039] In the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" ", "Top", "Bottom", "Inner", "Outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying t...
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The invention provides a battery module and an automobile. The battery module includes batteries and battery sealing components. The battery sealing assembly includes a first sealing cover and a second sealing cover which are sealed and connected by the first joint part and the second joint part to form a battery accommodating space. A sealing medium is provided between the first joint part and the second joint part to form a first sealing area and a second sealing area, and the first sealing area and the second sealing area are at least partially spaced to form an air gap extending in the circumferential direction. The airtight detection channel has an airtight detection port that communicates with the outside world. The second sealing cover is configured as a tray. The airtight detection port is located on the side of the tray and communicates with the airtight detection channel through the gas passage. The battery is in the battery containing space. According to the present invention, the airtightness of the first sealing area and the second sealing area with high leakage risk can be quickly detected through the airtight detection channel with a small volume, and the detection accuracy is high. And the gas consumption is small, the detection time is short, and the detection efficiency can be improved.
Description
technical field [0001] The present invention relates to the technical field of batteries, and more particularly relates to a battery module and an automobile. Background technique [0002] Power batteries used in automobiles usually need to be placed in a sealed space to protect the batteries and circuits. Generally, the sealing is realized by combining the tray with the sealing cover. The position where the tray and the sealing cover are combined is prone to poor sealing due to insufficient combination, which is a high-risk area for sealing leakage. Therefore, it is necessary to test the sealing performance of the cavity containing the power battery. It is usually tested by filling the cavity with gas and keeping the pressure for a predetermined time. However, this detection method needs to fill a large amount of gas, takes a long time, has low detection efficiency, and cannot realize rapid detection of high-risk areas of seal leakage. [0003] Therefore, there is a nee...
Claims
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IPC IPC(8): H01M50/147H01M50/186H01M10/48G01M3/02
CPCG01M3/02H01M10/48H01M2220/20Y02E60/10
Inventor 胡世超朱建华仝志伟
Owner BYD CO LTD