CN211789145U - Lithium battery with explosion-proof safety structure - Google Patents
Lithium battery with explosion-proof safety structure Download PDFInfo
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- CN211789145U CN211789145U CN202020285185.6U CN202020285185U CN211789145U CN 211789145 U CN211789145 U CN 211789145U CN 202020285185 U CN202020285185 U CN 202020285185U CN 211789145 U CN211789145 U CN 211789145U
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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
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Abstract
The utility model is suitable for a lithium cell technical field provides a lithium cell with explosion-proof safety structure, including battery pack and apron subassembly, battery pack includes shell, connection piece, inner shell, lithium cell body, bottom plate, connecting bolt, connecting block and through hole, the connection piece with the shell fixed connection, and even equidistant setting is around the inside wall of shell; through setting up traction spring, connecting bolt and traction nut, make and close the back bottom plate at the apron lid and pass the through hole, traction nut and connecting bolt threaded connection, the apron is by jack-up when lithium cell body explosion, traction spring can be effectively to the apron further pull, the apron flies out when avoiding the explosion of lithium cell body, simultaneously through setting up the extension board, connecting bolt and connecting nut, thereby further be connected apron and shell, thereby further improved the joint strength of apron and shell, the explosion-proof ability of this lithium cell has been improved.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell, especially, relate to a lithium cell with explosion-proof safety structure.
Background
The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, unlike a lithium ion battery, which is a rechargeable battery, and a lithium ion polymer battery. The inventor of lithium batteries was edison. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. Therefore, lithium batteries have not been used for a long time. With the development of microelectronic technology at the end of the twentieth century, miniaturized devices are increasing, and high requirements are made on power supplies. The lithium battery enters a large-scale practical stage;
because present lithium cell shell and cap junction are comparatively weak for the lithium cell cap flies out very easily when the explosion, thereby causes present lithium cell explosion-proof ability relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a lithium cell with explosion-proof safety structure aims at solving present lithium cell housing and the cap junction comparatively weak for the lithium cell cap fly out very easily when the explosion, thereby causes the relatively poor problem of present lithium cell explosion-proof ability.
The utility model is realized in such a way, a lithium battery with an explosion-proof safety structure comprises a battery component and a cover plate component, wherein the battery component comprises an outer shell, a connecting piece, an inner shell, a lithium battery body, a bottom plate, a first connecting bolt, a first connecting block and a through hole, the connecting piece is fixedly connected with the outer shell and is uniformly arranged around the inner side wall of the outer shell at equal intervals, the inner shell is fixedly connected with the connecting piece and is positioned at one side of the connecting piece away from the outer shell, the lithium battery body is fixedly connected with the inner shell and is sleeved in the inner cavity of the inner shell, the bottom plate is fixedly connected with the outer shell and is positioned at the bottom end of the outer shell, the first connecting bolt is fixedly connected with the bottom plate and is uniformly arranged around the outer side of the outer shell at equal intervals, and the first connecting block and the outer shell, the through holes are uniformly and equidistantly formed around the top end of the first connecting block;
the cover plate component comprises a cover plate, an extension plate, a second connecting bolt, a traction spring, a connecting nut and a traction nut, the cover plate is detachably connected with the first connecting block, and is positioned at the top end of the shell, the extension plate and the cover plate are integrally formed and are uniformly and equidistantly arranged around the bottom end of the cover plate, the connecting nut is fixedly connected with the shell, and is positioned on the peripheral side wall of the shell, the second connecting bolt is in threaded connection with the extension plate and the connecting nut, and penetrates through the extending plate to the inner cavity of the connecting nut, the traction spring is fixedly connected with the cover plate, and penetrates through the through hole to the outer side of the first connecting bolt, the traction nut is rotationally connected with the traction spring, and the traction nut is positioned at the bottom end of the traction spring and is in threaded connection with the first connecting bolt.
Preferably, the battery pack further comprises heat dissipation holes uniformly and equidistantly formed in the surfaces of the outer shell and the inner shell.
Preferably, the cover plate assembly further comprises a second connecting block, the second connecting block and the cover plate are integrally formed and are evenly and equidistantly arranged on the periphery of the top end of the inner cavity of the inner shell.
Preferably, the cover plate assembly further comprises a guide post, the guide post is fixedly connected with the cover plate and sleeved in an inner cavity of the through hole, and one end, far away from the cover plate, of the guide post is fixedly connected with the traction spring.
Preferably, the cover plate assembly further comprises a reinforcing connecting piece, the reinforcing connecting piece is fixedly connected with the shell, the bottom plate and the first connecting block, and the reinforcing connecting piece is uniformly and equidistantly arranged on the periphery of the first connecting block and the periphery of the bottom plate.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a lithium cell with explosion-proof safety structure, through setting up traction spring, first connecting bolt and traction nut, make and pass the through hole at apron lid back bottom plate that closes, traction nut and first connecting bolt threaded connection, be jack-up when lithium cell body explosion cover plate, traction spring can be effectively to the apron further pull, apron departure when avoiding the explosion of lithium cell body, simultaneously through setting up the extension board, first connecting bolt and coupling nut, thereby further be connected apron and shell, thereby further improve the joint strength of apron and shell, the explosion-proof ability of this lithium cell has been improved.
Drawings
FIG. 1 is a sectional view of the present invention;
fig. 2 is a front view of the structure of the present invention.
In the figure: 1-battery component, 11-outer shell, 12-connecting piece, 13-inner shell, 14-lithium battery body, 15-heat dissipation hole, 16-bottom plate, 17-first connecting bolt, 18-first connecting block, 19-through hole, 2-cover plate component, 21-cover plate, 22-second connecting block, 23-guide column, 24-extension plate, 25-second connecting bolt, 26-traction spring, 27-connecting nut, 28-traction nut and 29-reinforcing connecting piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, the present invention provides a technical solution: a lithium battery with an explosion-proof safety structure comprises a battery component 1 and a cover plate component 2, wherein the battery component 1 comprises an outer shell 11, a connecting piece 12, an inner shell 13, a lithium battery body 14, a bottom plate 16, a first connecting bolt 17, a first connecting block 18 and a through hole 19, the connecting piece 12 is fixedly connected with the outer shell 11 and is uniformly arranged around the inner side wall of the outer shell 11 at equal intervals, the inner shell 13 is fixedly connected with the connecting piece 12 and is positioned at one side of the connecting piece 12 far away from the outer shell 11, the lithium battery body 14 is fixedly connected with the inner shell 13 and is sleeved in an inner cavity of the inner shell 13, the bottom plate 16 is fixedly connected with the outer shell 11 and is positioned at the bottom end of the outer shell 11, the first connecting bolt 17 is fixedly connected with the bottom plate 16 and is uniformly arranged around the outer side of the outer shell 11 at equal intervals, the first connecting block 18 and, the through holes 19 are uniformly arranged around the top end of the first connecting block 18 at equal intervals;
the cover plate assembly 2 comprises a cover plate 21, an extension plate 24, a second connecting bolt 25, a traction spring 26, a connecting nut 27 and a traction nut 28, the cover plate 21 is detachably connected with the first connecting block 18 and is located at the top end of the shell 11, the extension plate 24 and the cover plate 21 are integrally formed, the cover plate 21 is uniformly and equidistantly arranged on the periphery of the bottom end of the cover plate 21, the connecting nut 27 is fixedly connected with the shell 11 and is located on the peripheral side wall of the shell 11, the second connecting bolt 25 is in threaded connection with the extension plate 24 and the connecting nut 27 and penetrates through the inner cavity of the extension plate 24 to the connecting nut 27, the traction spring 26 is fixedly connected with the cover plate 21 and penetrates through the through hole 19 to the outer side of the first connecting bolt 17, the traction nut 28 is rotatably connected with the traction spring 26 and is located at the bottom end of the traction spring 26, and the traction nut 28.
In this embodiment, by providing the pulling spring 26, the first connecting bolt 17 and the pulling nut 28, the bottom plate 16 passes through the through hole 19 after the cover plate 21 is covered, the pulling nut 28 is in threaded connection with the first connecting bolt 17, when the cover plate 21 is jacked up due to explosion of the lithium battery body 14, the pulling spring 26 can further pull the cover plate 21 effectively, the cover plate 21 is prevented from flying out when the lithium battery body 14 explodes, the explosion-proof capability of the lithium battery is improved, and by providing the extension plate 24, the second connecting bolt 25 and the connecting nut 27, the cover plate 21 is further connected with the housing 11, so that the connection strength between the cover plate 21 and the housing 11 is further improved.
Further, the battery assembly 1 further includes heat dissipation holes 15 uniformly and equidistantly formed on the surfaces of the outer case 11 and the inner case 13.
In this embodiment, the heat radiation hole 15 is provided to effectively radiate heat from the lithium battery main body 14.
Further, apron subassembly 2 still includes second connecting block 22, and second connecting block 22 and apron 21 integrated into one piece, and even equidistant setting is around inner shell 13 inner chamber top.
In the embodiment, by providing the second connection block 22, the explosive force generated when the lithium battery body 14 explodes is effectively reduced to act on the connection between the inner casing 13 and the cover plate 21, so that the connection end between the cover plate 21 and the outer casing 11 is opened.
Further, the cover plate assembly 2 further includes a guide post 23, the guide post 23 is fixedly connected with the cover plate 21 and sleeved in the inner cavity of the through hole 19, and one end of the guide post 23 far away from the cover plate 21 is fixedly connected with a traction spring 26.
In the present embodiment, the guide post 23 is provided to allow the cover 21 to be positioned when it is attached.
Further, the cover plate assembly 2 further comprises a reinforcing connecting piece 29, and the reinforcing connecting piece 29 is fixedly connected with the shell 11, the bottom plate 16 and the first connecting block 18 and is uniformly and equidistantly arranged around the first connecting block 18 and the bottom plate 16.
In the present embodiment, the reinforcing connecting piece 29 is provided on the outer side of the housing 11, so that the connection stability of the base plate 16, the housing 11, and the first connecting block 18 can be increased, and heat dissipation can be facilitated.
The utility model discloses a theory of operation and use flow: the groups of the traction springs 26 are aligned with the through holes 19, pass through the through holes 19, then the groups of the traction nuts 28 and the corresponding groups of the first connecting bolts 17 are fixed, then the cover plate 21 and the first connecting block 18 are fixed by using a spanner, then the second connecting bolts 25 are screwed into the connecting nuts 27 for fixing, then the traction nuts 28 are screwed by using the spanner, so that the traction nuts 28 move downwards, and meanwhile, the traction springs 26 are stretched, so that when the explosion cover plate 21 of the lithium battery body 14 is jacked up, the stretched traction springs 26 can effectively pull the cover plate 21, and the cover plate 21 is prevented from flying out.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a lithium cell with explosion-proof safety structure which characterized in that: the battery pack comprises a battery pack (1) and a cover plate assembly (2), wherein the battery pack (1) comprises an outer shell (11), a connecting piece (12), an inner shell (13), a lithium battery body (14), a bottom plate (16), a first connecting bolt (17), a first connecting block (18) and a through hole (19), the connecting piece (12) is fixedly connected with the outer shell (11) and is uniformly arranged around the inner side wall of the outer shell (11) at equal intervals, the inner shell (13) is fixedly connected with the connecting piece (12) and is positioned at one side, far away from the outer shell (11), of the connecting piece (12), the lithium battery body (14) is fixedly connected with the inner shell (13) and is sleeved in the inner cavity of the inner shell (13), the bottom plate (16) is fixedly connected with the outer shell (11) and is positioned at the bottom end of the outer shell (11), and the first connecting bolt (17) is fixedly connected with the bottom plate (16), the first connecting blocks (18) and the shell (11) are integrally formed, and are uniformly and equidistantly arranged around the top end of the shell (11), and the through holes (19) are uniformly and equidistantly formed around the top end of the first connecting blocks (18);
the cover plate assembly (2) comprises a cover plate (21), an extension plate (24), a second connecting bolt (25), a traction spring (26), a connecting nut (27) and a traction nut (28), the cover plate (21) is detachably connected with the first connecting block (18) and is located at the top end of the shell (11), the extension plate (24) and the cover plate (21) are integrally formed and are uniformly and equidistantly arranged at the periphery of the bottom end of the cover plate (21), the connecting nut (27) is fixedly connected with the shell (11) and is located on the peripheral side wall of the shell (11), the second connecting bolt (25) is in threaded connection with the extension plate (24) and the connecting nut (27) and penetrates through the inner cavity of the extension plate (24) to the connecting nut (27), the traction spring (26) is fixedly connected with the cover plate (21), and the traction nut (28) penetrates through the through hole (19) to the outer side of the first connecting bolt (17), is rotatably connected with the traction spring (26) and is positioned at the bottom end of the traction spring (26), and the traction nut (28) is in threaded connection with the first connecting bolt (17).
2. A lithium battery having an explosion-proof safety structure as claimed in claim 1, wherein: the battery assembly (1) further comprises heat dissipation holes (15) which are uniformly arranged on the surfaces of the outer shell (11) and the inner shell (13) at equal intervals.
3. A lithium battery having an explosion-proof safety structure as claimed in claim 1, wherein: the cover plate assembly (2) further comprises a second connecting block (22), the second connecting block (22) and the cover plate (21) are integrally formed and are evenly and equidistantly arranged on the periphery of the top end of the inner cavity of the inner shell (13).
4. A lithium battery having an explosion-proof safety structure as claimed in claim 1, wherein: the cover plate assembly (2) further comprises a guide column (23), the guide column (23) is fixedly connected with the cover plate (21) and sleeved in an inner cavity of the through hole (19), and one end of the cover plate (21) far away from the guide column (23) is fixedly connected with the traction spring (26).
5. A lithium battery having an explosion-proof safety structure as claimed in claim 1, wherein: the cover plate assembly (2) further comprises a reinforcing connecting piece (29), the reinforcing connecting piece (29) is fixedly connected with the shell (11), the bottom plate (16) and the first connecting block (18), and the reinforcing connecting piece is uniformly and equidistantly arranged on the periphery of the first connecting block (18) and the bottom plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020285185.6U CN211789145U (en) | 2020-03-10 | 2020-03-10 | Lithium battery with explosion-proof safety structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020285185.6U CN211789145U (en) | 2020-03-10 | 2020-03-10 | Lithium battery with explosion-proof safety structure |
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| Publication Number | Publication Date |
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| CN211789145U true CN211789145U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020285185.6U Active CN211789145U (en) | 2020-03-10 | 2020-03-10 | Lithium battery with explosion-proof safety structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216054A (en) * | 2021-12-23 | 2022-03-22 | 北京三盈联合石油技术有限公司 | LNG adds mechanism of qi and LNG gas station |
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2020
- 2020-03-10 CN CN202020285185.6U patent/CN211789145U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216054A (en) * | 2021-12-23 | 2022-03-22 | 北京三盈联合石油技术有限公司 | LNG adds mechanism of qi and LNG gas station |
| CN114216054B (en) * | 2021-12-23 | 2023-03-10 | 北京三盈联合石油技术有限公司 | LNG adds mechanism of qi and LNG gas station |
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