CN215680891U - Lithium battery with explosion-proof structure - Google Patents
Lithium battery with explosion-proof structure Download PDFInfo
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- CN215680891U CN215680891U CN202121090484.5U CN202121090484U CN215680891U CN 215680891 U CN215680891 U CN 215680891U CN 202121090484 U CN202121090484 U CN 202121090484U CN 215680891 U CN215680891 U CN 215680891U
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- explosion
- proof
- proof structure
- lithium battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a lithium battery with an explosion-proof structure, which comprises a shell, a battery cell and an explosion-proof structure, wherein the shell is provided with a plurality of through holes; wherein, electric core setting is provided with the mounting hole in the casing, and explosion-proof structural connection is in the mounting hole, and explosion-proof structural connection includes cardboard group, rubber ring and explosion-proof piece, and cardboard group joint is on the mounting hole, and the middle part is provided with explosion-proof hole, including two cardboards that the stromatolite set up. The rubber ring wraps the edge of the clamping plate group on the periphery side, so that the clamping plate group is connected with the mounting hole in a sealing mode. The explosion-proof piece is arranged between the two clamping plates and seals the explosion-proof hole. According to the lithium battery with the explosion-proof structure, the explosion-proof structure is arranged on the shell, so that the explosion-proof sheet can be broken and decompressed preferentially when the battery expands at high temperature, explosion is avoided, and meanwhile, the explosion-proof sheet is arranged on the clamping plate group for installation, so that the operation is simple and convenient, and the disassembly, assembly and replacement are convenient.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a lithium battery with an explosion-proof structure.
Background
Under the conditions of severe impact, short circuit and the like, the battery is easy to generate heat and raise temperature, so that the gas in the battery is increased, the gas pressure is increased, and further the outer metal shell can be broken, the chemical property of lithium is too active, and when the lithium metal is exposed in the air, the lithium metal and oxygen can generate a severe oxidation reaction to explode, so that high danger is generated.
It is therefore desirable to provide a lithium battery having an explosion-proof structure to solve the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a lithium battery with an explosion-proof structure, which solves the problem that many batteries in the prior art are not provided with the explosion-proof structure and cause the battery to have explosion danger by arranging the explosion-proof structure on a shell.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a lithium battery with an explosion-proof structure comprises a shell, a battery cell and the explosion-proof structure;
wherein, electric core sets up in the casing be provided with the mounting hole on the casing, explosion-proof structure connects in the mounting hole, explosion-proof structure includes:
the clamping plate group is clamped on the mounting hole, the middle part of the clamping plate group is provided with an explosion-proof hole, and the explosion-proof hole comprises two clamping plates which are arranged in a laminated mode;
a rubber ring; the clamping plate group is wrapped on the edge of the periphery of the clamping plate group so as to be connected with the mounting hole in a sealing manner; and
and the explosion-proof piece is arranged between the two clamping plates and seals the explosion-proof hole.
In the utility model, the edge of the mounting hole is provided with a clamping groove and an inlet groove which are mutually communicated, the periphery of the clamping plate group is provided with a flange part, and the flange part enters through the inlet groove and is clamped into the clamping groove through rotation.
The thickness of the rubber ring is larger than the depth of the clamping groove, and the rubber ring is connected in the clamping groove in an interference mode.
In addition, an operation hole is formed in one end, far away from the clamping groove, of the flange portion and used for being controlled to rotate under stress, and the length of the flange portion is larger than that of the clamping groove in the circumferential direction.
In the utility model, the edge of the periphery of the clamping plate group is provided with a connecting hole, and the rubber ring is provided with a fixing column which is used for being connected with the connecting hole.
In the utility model, ribs are arranged on the peripheral side edges of the explosion-proof sheets, and positioning grooves corresponding to the ribs are arranged on the two clamping plates.
In the utility model, the inner surface of the explosion-proof sheet is provided with a cross crack line, and the cross crack line is positioned in a region opposite to the explosion-proof hole.
In the utility model, the inner surface of the explosion-proof sheet is provided with a semicircular crack line, and the semicircular crack line is positioned in an area opposite to the explosion-proof hole.
In the utility model, the explosion-proof sheet is a copper foil sheet.
In the utility model, the explosion-proof structure is arranged at the peripheral position of the top surface or the bottom surface of the shell.
Compared with the prior art, the utility model has the beneficial effects that: according to the lithium battery with the explosion-proof structure, the explosion-proof structure is arranged on the shell, so that the explosion-proof sheet can be broken and decompressed preferentially when the battery expands at high temperature, explosion is avoided, and meanwhile, the explosion-proof sheet is arranged on the clamping plate group for installation, so that the operation is simple and convenient, and the disassembly, assembly and replacement are convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.
Fig. 1 is a sectional structural view of a lithium battery having an explosion-proof structure according to the present invention.
Fig. 2 is an enlarged view of a portion of a structure in fig. 1.
Fig. 3 is a schematic diagram of an embodiment of an explosion-proof structure of a lithium battery having an explosion-proof structure according to the present invention.
Fig. 4 is a second schematic diagram of an explosion-proof structure of a lithium battery having an explosion-proof structure according to the present invention.
Fig. 5 is a schematic structural view of a mounting hole of a lithium battery having an explosion-proof structure according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom" are used only with reference to the orientation of the drawings, and the directional terms are used for illustration and understanding of the present invention, and are not intended to limit the present invention.
The terms "first," "second," and the like in the terms of the utility model are used for descriptive purposes only and not for purposes of indication or implication relative importance, nor as a limitation on the order of precedence.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., the connection may be a detachable connection or a connection in a unitary structure; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Many batteries in the prior art are not provided with an explosion-proof structure, so that the batteries have the danger of explosion.
The following is a preferred embodiment of the lithium battery having an explosion-proof structure according to the present invention, which can solve the above technical problems.
Referring to fig. 1 and fig. 2, fig. 1 is a cross-sectional structural view of a lithium battery with an explosion-proof structure according to the present invention, and fig. 2 is an enlarged view of a portion of a structure at a in fig. 1.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The utility model provides a lithium battery with an explosion-proof structure 15, which comprises a shell, a battery cell 14 and the explosion-proof structure 15.
The battery cell 14 is disposed in the casing, the casing in this embodiment includes an outer casing 11 and an inner casing 12, the outer casing 11 is sleeved outside the inner casing 12, a spacer 13 is disposed between the outer casing 11 and the inner casing 12, a mounting hole 121 is disposed on the casing, the mounting hole 121 may be specifically disposed on the outer casing 11 or the inner casing 12, and the explosion-proof structure 15 is connected in the mounting hole 121.
The explosion-proof structure 15 comprises a clamping plate group, a rubber ring 22 and an explosion-proof sheet 23.
The clamping plate set is clamped on the mounting hole 121, and the middle part of the clamping plate set is provided with an explosion-proof hole 211 which comprises two clamping plates 21 arranged in a laminated mode.
The rubber ring 22 wraps the edge of the clamping plate group on the peripheral side, and the rubber ring 22 is in sealing contact with the inner wall of the mounting hole 121, so that the clamping plate group is in sealing connection with the mounting hole 121.
The explosion-proof piece 23 is arranged between the two clamping plates 21 and seals the explosion-proof hole 211, the explosion-proof piece 23 is thin, and the clamping plates can enhance the overall strength of the explosion-proof structure so as to facilitate installation.
Referring to fig. 5, in the present invention, the edge of the mounting hole 121 is provided with a slot 123 and an entrance slot 122 which are communicated with each other, the periphery of the clamping plate set is provided with a flange portion 24, the flange portion 24 enters through the entrance slot 122 and is rotatably clamped into the slot 123, the mounting is simple and convenient, and the explosion-proof structure 15 can be conveniently detached and replaced.
Wherein, the thickness of rubber ring 22 is greater than the degree of depth of draw-in groove 123 for rubber ring 22 interference is connected in draw-in groove 123, stable in structure, and sealed effectual.
In addition, an operation hole 241 is formed in one end, away from the card slot 123, of the flange portion 24, the operation hole 241 is convenient to insert by using a tool, the operation hole 241 bears the force of the tool so as to control the rotation of the explosion-proof structure 15, and the operation is convenient, and in the circumferential direction, the length of the flange portion 24 is larger than that of the card slot 123, so that after the flange portion 24 is rotatably clamped into the card slot 123, the operation hole 241 can be exposed to facilitate the operation.
In the utility model, the edge of the periphery of the card group is provided with a connecting hole, and the rubber ring 22 is provided with a fixing column 221 for connecting with the connecting hole, so that the whole connection of the card group is more stable.
In the utility model, the edge of the periphery of the explosion-proof sheet 23 is provided with the rib 231, and the two clamping plates 21 are respectively provided with the positioning grooves corresponding to the rib 231, so that the displacement of the explosion-proof sheet 23 is avoided, and the structural stability is improved.
Referring to fig. 4, in the present invention, the inner surface of the rupture disk 23 is provided with a cross-shaped crack 233, and the cross-shaped crack 233 is located at a region opposite to the rupture hole 211.
Referring to fig. 3, in the present invention, the inner surface of the explosion-proof plate 23 is provided with a semicircular crack line 232, and the semicircular crack line 232 is located at a region opposite to the explosion-proof hole 211.
The explosion-proof sheet 23 in this embodiment is a copper foil sheet.
The explosion-proof structure 15 in this embodiment is disposed at the peripheral position of the top surface or the bottom surface of the housing, so as to avoid interfering with the subsequent electrical connection with the electrical appliance.
This lithium cell with explosion-proof construction of preferred embodiment is through setting up explosion-proof construction on the casing for can preferentially break the explosion-proof piece step-down when battery high temperature inflation, avoid the explosion, be provided with the explosion-proof piece simultaneously and install on the cardboard group, easy operation is convenient, and makes things convenient for the dismouting to change.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A lithium battery with an explosion-proof structure is characterized by comprising a shell, a battery core and the explosion-proof structure;
wherein, electric core sets up in the casing be provided with the mounting hole on the casing, explosion-proof structure connects in the mounting hole, explosion-proof structure includes:
the clamping plate group is clamped on the mounting hole, the middle part of the clamping plate group is provided with an explosion-proof hole, and the explosion-proof hole comprises two clamping plates which are arranged in a laminated mode;
a rubber ring; the clamping plate group is wrapped on the edge of the periphery of the clamping plate group so as to be connected with the mounting hole in a sealing manner; and
and the explosion-proof piece is arranged between the two clamping plates and seals the explosion-proof hole.
2. The lithium battery with an explosion-proof structure as claimed in claim 1, wherein the edge of the mounting hole is provided with a slot and an entrance slot which are communicated with each other, and the periphery of the clamping plate group is provided with a flange portion which enters through the entrance slot and is clamped into the slot by rotation.
3. The lithium battery with an explosion-proof structure as recited in claim 2, wherein the thickness of the rubber ring is greater than the depth of the clamping groove, and the rubber ring is connected in the clamping groove in an interference manner.
4. The lithium battery with an explosion-proof structure as claimed in claim 2, wherein an end of the flange portion away from the slot is provided with an operation hole for force-controlled rotation, and a length of the flange portion in a circumferential direction is greater than a length of the slot.
5. The lithium battery with the explosion-proof structure as recited in claim 1, wherein a connection hole is provided at a peripheral side edge of the card group, and a fixing post for connecting with the connection hole is provided on the rubber ring.
6. The lithium battery with the explosion-proof structure as recited in claim 1, wherein the explosion-proof sheet is provided with ribs at the peripheral edges thereof, and positioning grooves corresponding to the ribs are formed in both of the two clamping plates.
7. The lithium battery having an explosion-proof structure as set forth in claim 1, wherein the explosion-proof sheet is provided at an inner surface thereof with a cross-shaped crack line at a region opposite to the explosion-proof hole.
8. The lithium battery with an explosion-proof structure according to claim 1, wherein the explosion-proof sheet is provided at an inner surface thereof with a semicircular crack line located at a region opposite to the explosion-proof hole.
9. The lithium battery having an explosion-proof structure as set forth in claim 1, wherein the explosion-proof sheet is a copper foil.
10. The lithium battery with an explosion-proof structure as set forth in claim 1, wherein the explosion-proof structure is provided at a peripheral position of the top surface or the bottom surface of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121090484.5U CN215680891U (en) | 2021-05-20 | 2021-05-20 | Lithium battery with explosion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121090484.5U CN215680891U (en) | 2021-05-20 | 2021-05-20 | Lithium battery with explosion-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215680891U true CN215680891U (en) | 2022-01-28 |
Family
ID=79972469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121090484.5U Active CN215680891U (en) | 2021-05-20 | 2021-05-20 | Lithium battery with explosion-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215680891U (en) |
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2021
- 2021-05-20 CN CN202121090484.5U patent/CN215680891U/en active Active
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