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US 12,706,359 B2Granted
Drain valve for battery box, battery, electric apparatus, and drainage method
AssigneeContemporary Amperex Technology Co., Limited
InventorSiling Zhong
Life of this patent
Estimating the term…
Abstract
A drain valve includes a sealing member and an expansion member, where the sealing member is configured to be disposed on an outer side of a drain outlet of a battery box, the expansion member is disposed on a side of the sealing member facing the drain outlet, and the expansion member is configured to expand after absorbing water to extrude an edge of the sealing member to move in a direction leaving an inner side of the drain outlet.
Claims16
A drain valve, comprising:
- a sealing member, wherein the sealing member is configured to be disposed on an outer side of a drain outlet of a battery box;
- and
- an expansion member, wherein the expansion member is disposed on a side of the sealing member facing the drain outlet, and the expansion member is configured to expand after absorbing water to extrude an edge of the sealing member, causing the edge of the sealing member to bend and deform, to move in a direction leaving an inner side of the drain outlet.
An automatic drainage method applied to a drain valve,
- wherein the drain valve is mounted on an outer side of a drain outlet of a battery box to close the drain outlet, and the drain valve comprises:
- a sealing member, wherein the sealing member is disposed on the outer side of the drain outlet;
- and
- an expansion member, wherein the expansion member is disposed on a side of the sealing member facing the drain outlet, and the expansion member is configured to expand after absorbing water to extrude an edge of the sealing member to move in a direction leaving an inner side of the drain outlet;
- the automatic drainage method comprising:
- enabling a liquid in the battery box to come into contact with the expansion member of the drain valve;
- expanding by the expansion member to extrude sealing members on two sides of the expansion member;
- and
- bending edges of the extruded sealing members in a direction leaving the battery box to form gaps between the edges of the extruded sealing members and the battery box, wherein water is drained through the gaps.
6 more elements
A drain valve, comprising:
- a sealing member configured to be disposed on an outer side of a drain outlet of a battery box;
- and
- an expansion member disposed on a side of the sealing member facing the drain outlet, wherein the expansion member is configured to expand after absorbing water to extrude an edge of the sealing member to move in a direction leaving an inner side of the drain outlet;
- wherein:
- the sealing member is provided with a concave portion on the side facing the drain outlet, the concave portion is configured for accommodating the expansion member, and the expansion member expands to extrude the concave portion to move in the direction leaving the inner side of the drain outlet;
- and
- the sealing member is plate-shaped, a plurality of convex strips are formed on a side surface of the sealing member, and adjacent two of the plurality of convex strips cooperate to define the concave portion.
4 more elements
Dependencies are inferred from the claim text.