Sealing member and battery comprising the same
A sealing member and a battery comprising the sealing member are provided. The sealing member comprises a sealing part, an operation part having a supporting portion, an operation protrusion disposed on an upper surface of the supporting portion, and a deformable leg depending from a bottom surface of the supporting portion. The sealing member also comprises a connecting part connecting the sealing part and operation part. The sealing part has a maximum diameter greater than that of the connecting part.
1. A battery, comprising:
a shell;
a cover plate having an injection hole and configured to define a cavity with the shell;
a core and electrolyte in the cavity; and
a sealing member, the sealing member comprising:
a sealing part;
an operation part having a supporting portion;
an operation protrusion disposed on an upper surface of the supporting portion;
at least two deformable legs integrally formed with the supporting portion and extended out from a bottom surface of the supporting portion; and
a connecting part connecting the sealing part and the operation part,
wherein the at least two deformable legs are supported on the upper surface of the cover plate; the connecting part is disposed in the injection hole; and the sealing part seals the injection hole and is adapted to open the injection hole upon pressing the operation part; and
wherein the at least two deformable legs are longer than the connecting part; and
wherein the at least two deformable legs are distributed evenly at a periphery of the bottom surface of the supporting portion and spaced apart from each other.
2. A battery, comprising:
a shell;
a cover plate having an injection hole and configured to define a cavity with the shell;
a core and electrolyte in the cavity; and
a sealing member, the sealing member comprising:
a sealing part;
an operation part having a supporting portion;
an operation protrusion disposed on an upper surface of the supporting portion;
at least two deformable legs integrally formed with the supporting portion and extended out from a bottom surface of the supporting portion; and
a connecting part connecting the sealing part and the operation part,
wherein the sealing part has a maximum diameter greater than that of the connecting part; and
wherein the at least two deformable legs are longer than the connecting part; and
wherein the at least two deformable legs are distributed evenly at a periphery of the bottom surface of the supporting portion and spaced apart from each other.
3. The battery according to claim 1 , wherein the sealing part comprises a truncated-cone-shaped portion connected with the connecting part.
4. The battery according to claim 3 , wherein the sealing part comprises a guiding portion at a bottom thereof, and the guiding portion is connected to the truncated-cone shaped portion,
wherein the guiding portion has an inverted and truncated cone shape,
wherein an upper surface of the guiding portion has the same diameter as that of a bottom surface of the truncated-cone-shaped portion, and
wherein the guiding portion has a length greater than that of the truncated-cone-shaped portion.
5. The battery according to claim 4 , wherein the sealing part is hollow.
6. The battery according to claim 5 , wherein a hole is formed in the sealing part and extended through the guiding portion in a length direction of the guiding portion,
wherein the hole is extended into the truncated-cone shaped portion by a predetermined length and has a dome-shaped upper end, wherein a side wall surface of the hole is transitioned into a bottom surface of the guide portion via arc.
7. The battery according to claim 1 , wherein the supporting portion is configured by a flat plate and a periphery edge of an upper surface of the supporting portion is rounded.
8. The battery according to claim 1 , wherein the operation protrusion is disposed at a center of the upper surface of the supporting portion and has a diameter smaller than that of the supporting portion, and the connecting part is concentric with the supporting portion and the sealing part.
9. The battery according to claim 1 , wherein the at least two deformable legs are configured as a column having a circular cross section.
10. The battery according to claim 2 , wherein the connecting part has a diameter less than that of the injection hole.
11. The battery according to claim 2 , wherein the sealing part has a maximum diameter greater than that of the injection hole.
12. The battery according to claim 2 , wherein the at least two deformable legs are compressed onto the upper surface of the cover plate such that the injection hole is sealed by the sealing member.