CN218182278U - Negative pressure sealing tool for lithium battery - Google Patents
Negative pressure sealing tool for lithium battery Download PDFInfo
- Publication number
- CN218182278U CN218182278U CN202221924027.6U CN202221924027U CN218182278U CN 218182278 U CN218182278 U CN 218182278U CN 202221924027 U CN202221924027 U CN 202221924027U CN 218182278 U CN218182278 U CN 218182278U
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- CN
- China
- Prior art keywords
- negative pressure
- lithium battery
- glue
- box body
- nail
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 239000003292 glue Substances 0.000 claims abstract description 65
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a lithium cell negative pressure seals frock, include: the vacuum box body is used for placing a lithium battery to be sealed, a vacuum pipeline communicated with the inner cavity is arranged on the outer wall of the vacuum box body, at least one row of glue nail holes are formed in the top wall of the vacuum box body, and glue nail pipes extending downwards are formed in the inner cavity of the vacuum box body corresponding to each glue nail hole; the push-pull rod comprises a pressing block and a plurality of rod shafts fixedly connected to one side face of the pressing block, the rod shafts correspond to the glue nail holes one to one and are used for pressing glue nails in the glue nail holes, so that the glue nails can pass through the glue nail pipes and can be plugged into the liquid injection holes of the lithium battery, and negative pressure sealing of the lithium battery is achieved. The utility model discloses a lithium cell negative pressure seals frock can carry out batch negative pressure encapsulation to the lithium cell, has solved the current safety problem that the battery that seals under the atmospheric pressure and bring bloated and arouse.
Description
Technical Field
The utility model relates to a lithium cell apparatus for producing field, concretely relates to lithium cell negative pressure seals frock.
Background
With the popularization of new energy automobiles, especially the rapid development of pure electric automobiles, people have higher and higher requirements on the safety and the endurance of electric automobiles. The lithium battery is taken as a power core of the pure electric vehicle, and is particularly valued by people. At present, the lithium battery is mostly sealed under normal pressure when being sealed, and the later stage of the battery adopting the sealing mode is easy to bulge in the long-term circulation process, so that the battery is out of control and the running safety of a vehicle is related.
Chinese patent No. CN205248347U (2016, 5, 18) proposes a negative pressure pumping device for battery, which uses a rotating device with a safety valve and a negative pressure pumping mechanism to pump out the air in the battery, and then screws the safety valve on the valve port of the battery through the rotating device, so as to achieve the purpose of negative pressure pumping for the battery. The device aims at batteries with threaded valve ports, and is useless for batteries sealed by using sealing nails.
A negative pressure pumping and sealing nail sealing device for a lithium ion power battery is provided in Chinese patent with publication date of CN 206282944U (publication date of 2017, 6 and 27), wherein a negative pressure pumping and sealing module is arranged on a transverse plate fixedly supported by a pair of supporting frames, a battery inner cavity below the negative pressure pumping and sealing module is connected for vacuumizing, then an inner hexagon bolt is arranged in the negative pressure pumping and sealing module and is pressed downwards, and a sealing nail is pressed into a small hole of the lithium ion power battery to block the small hole, so that sealing is realized. However, the device needs to be provided with a negative pressure pumping module for each lithium ion battery, and cannot seal a large number of lithium ion batteries simultaneously, so that the working efficiency is low.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a lithium cell negative pressure seals frock, this lithium cell negative pressure seals frock can carry out batch negative pressure encapsulation to the lithium cell, has solved the current safety problem that the battery that seals under the atmospheric pressure and bring bloated and arouse.
In order to solve the technical problem, the utility model provides a lithium cell negative pressure seals frock, include:
the vacuum box body is used for placing a lithium battery to be sealed, a vacuum pipeline communicated with the inner cavity is arranged on the outer wall of the vacuum box body, at least one row of glue nail holes are formed in the top wall of the vacuum box body, and glue nail pipes extending towards the lower side are formed in the inner cavity of the vacuum box body corresponding to each glue nail hole; and
and the push-pull rod comprises a pressing block and a plurality of rod shafts fixedly connected to one side face of the pressing block, and the rod shafts correspond to the glue nail holes one by one and are used for pressing the glue nails in the glue nail holes so as to enable the glue nails to pass through the glue nail pipe and be plugged into the liquid injection hole of the lithium battery.
Furthermore, a positioning guide rail for fixing the lithium battery is arranged in the vacuum box body.
Furthermore, the chamber door of vacuum box is provided with the observation window.
Furthermore, a switch valve is arranged on the vacuum pipeline.
Further, a vacuum meter is arranged on the vacuum box body.
Further, the pressing block is a metal block and is fixedly connected with the rod shaft through a fixing piece.
Further, the tail end of the rod shaft is provided with a round chamfer.
Furthermore, the rod shaft is in clearance fit with the glue nail hole and the pipe hole of the glue nail pipe.
Further, the rubber nail comprises a rubber nail body and a rubber nail root, the rubber nail root is in interference fit with the pipe hole of the rubber nail pipe, and the diameter of the rubber nail root is larger than that of the lithium battery liquid injection hole.
Further, the tail end of the glue nail body is provided with a round head.
The utility model has the advantages that:
the utility model discloses a lithium cell negative pressure sealing frock has solved the current safety problem that the battery that seals under the ordinary pressure and bring bloated and arouse, and it can realize the batch negative pressure encapsulation of lithium cell, and the encapsulation efficiency is high; and the whole device has simple structure, convenient operation and good practicability.
Drawings
Fig. 1 is a schematic structural view of a negative pressure sealing tool for a lithium battery of the present invention;
fig. 2 is a schematic cross-sectional view of the working state of the negative pressure sealing tool for lithium battery of the present invention;
fig. 3 is a schematic view of a push-pull rod of the lithium battery negative pressure sealing tool of the present invention;
fig. 4 is a schematic view of a glue nail used in the negative pressure sealing tool for a lithium battery of the present invention;
6. positioning the guide rail; 7. a battery; 71. a liquid injection hole; 8. gluing nails; 81. the root of the rubber nail; 82. wherein: 1. a vacuum box body; 11. a box door; 12. buckling; 13. a glass viewing window; 21. a vacuum line; 22. opening and closing the valve; 3. a vacuum gauge; 4. a push-pull rod; 41. a pressing block; 42. a lever shaft; 43. a guide head; 5. a glue nail tube; 51. glue nail holes; a rounded head.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As described in the background art, the conventional lithium battery is mostly sealed under normal pressure during sealing, and the battery in the sealing mode is likely to bulge in the long-term circulation process in the later period, so that the battery is out of control and the running safety of a vehicle is related. Although negative pressure closing devices also appear at present, such negative pressure closing devices are not suitable for batteries sealed by using sealing nails, or cannot realize batch sealing of lithium batteries, and the sealing efficiency is low.
To this technical problem, the utility model provides a lithium cell negative pressure seals frock has solved the current safety problem that the battery that brings bloated arouses of sealing under the atmospheric pressure, can realize the encapsulation of the batch negative pressure of lithium cell, and packaging efficiency is high.
Fig. 1 is a schematic structural diagram of a negative pressure sealing machine for lithium batteries according to an embodiment of the present invention. The negative pressure sealing machine for the lithium battery comprises a vacuum box body 1 and a push-pull rod 4. Wherein, the side wall of the vacuum box body 1 is provided with a box door 11, and the box door 11 is opened and closed with the vacuum box body 1 through a buckle 12. In order to ensure the vacuum degree of the vacuum chamber 1, a sealing member such as a sealing rubber strip is preferably disposed between the door 11 and the vacuum chamber 1. Preferably, the door 11 is further provided with an observation window for observing the condition in the vacuum chamber 1. The viewing window is preferably a glass viewing window 13, but other transparent materials, such as acrylic, may also be used.
A vacuum pipeline 21 communicated with the inner cavity is arranged on one side wall of the vacuum box body 1, and when the vacuum box body is vacuumized, an external vacuumizing device is connected with the vacuum pipeline 21 to vacuumize. The vacuum pipe 21 is provided with a switching valve 22 to open or close the vacuum pipe 21. Preferably, a vacuum gauge 3 is provided on the vacuum chamber 1 to observe the vacuum state in the vacuum chamber 1 at any time.
The bottom of the inner cavity of the vacuum box body 1 is provided with a positioning guide rail 6, and the positioning guide rail 6 can be matched with a battery 7 to be sealed to realize the positioning of the battery 7 in the vacuum box body 1, thereby improving the accuracy of subsequent sealing.
Referring to fig. 1-2, in the present embodiment, a row of glue nail holes 51 are formed on the top wall of the vacuum box 1, and a glue nail tube 5 extending downward is formed in the inner cavity of the vacuum box 1 corresponding to each glue nail hole 51. When the battery 7 is placed in the vacuum box body 1, the liquid injection holes 71 of the battery 7 correspond to the glue nail tubes 5 one by one; and the liquid injection hole 71 of the battery 7 is coaxial with the rubber nail pipe 5 and the rubber nail hole 51, so that the sealing accuracy is improved. It will be appreciated that in other embodiments, when multiple rows of batteries 7 are simultaneously placed in the vacuum chamber 1, the glue holes 51 are correspondingly arranged in multiple rows.
Referring to fig. 3, the push-pull rod 4 includes a pressing block 41 and a plurality of rod shafts 42 fixedly connected to one side of the pressing block 41, and the plurality of rod shafts 42 correspond to the glue nail holes 51 one by one, and are used for pressing the glue nails 8 in the glue nail holes 51 to pass through the glue nail pipe 5 and plug into the liquid injection holes 71 of the battery 7. In this embodiment, the pressing block 41 is a metal block, and is fixedly connected to the rod shaft 42 through a fixing member. In other embodiments, the shaft 42 and the pressing block 41 may be fixedly connected by welding, integral molding, or the like. Preferably, the shaft 42 and the glue nail hole 51 are in clearance fit with the pipe hole of the glue nail pipe 5, so that the shaft 42 can be pressed downwards along the glue nail hole 51 and the pipe hole of the glue nail pipe 5. Preferably, the distal end of the shaft 42 is provided with a guide head 43, and the guide head 43 is provided with a round chamfer to facilitate insertion into the glue hole 51. When the device works, all the rod shafts 42 are driven to move downwards directly by extruding the pressing blocks 41, and the nail plugging process is completed.
Referring to fig. 4, the glue nail 8 includes a glue nail body and a glue nail root 81, wherein the glue nail root 81 is in interference fit with the pipe hole of the glue nail pipe 5, that is, the diameter of the glue nail root 81 is slightly larger than the pipe hole diameter of the glue nail pipe 5, on one hand, the glue nail 8 can be suspended in the glue nail pipe 5 by static friction force to avoid falling into the liquid injection hole 71; on the other hand also provides the leakproofness between with the rubber nail pipe 5, has guaranteed to reach certain vacuum in the vacuum box 1 when the evacuation. In addition, the diameter of the rubber nail root 81 is larger than the diameter of the liquid injection hole 71 of the battery 7. Preferably, the distal end of the glue spike body is provided with a rounded head 82 to facilitate insertion of the glue spike into the pour hole 71.
The utility model discloses a lithium cell negative pressure seals work flow of frock does: the battery 7 is pushed in place along the positioning guide rail 6 in the vacuum box body 1, the box door 11 is closed, and the buckle 12 is clamped. And then the glue nail 8 is plugged into the glue nail hole 51, the push-pull rod 4 is used for pushing and pressing the glue nail 8 downwards along the pipe hole of the glue nail pipe 5, the pushing and pressing are stopped when the head of the glue nail 8 is observed to be close to the liquid injection hole 71 through the glass observation window 13, and a wire gap is reserved between the liquid injection hole 71 and the glue nail 8, so that the air in the battery 7 can be pumped away during the subsequent vacuumizing.
Then, the vacuum pipe 21 is connected to a vacuum source, the on-off valve 22 is opened, and the on-off valve 22 is closed when the vacuum gauge 3 is observed to reach a preset vacuum value. At this time, the vacuum table 3 was observed for change at the holding pressure of 20 seconds. If the voltage does not change, the vacuum box 1 is in a negative pressure state, and the battery 7 is also in a negative pressure state at the moment. Then, the push-pull rod 4 is continuously pressed downwards, and the glue nail 8 is simultaneously plugged into the liquid injection hole 71 of the battery 7, so that the sealing of the battery 7 is realized.
To sum up, the negative pressure sealing tool for the lithium battery, provided by the utility model, arranges a plurality of batteries to be sealed in the vacuum box body, and vacuumizes the vacuum box body, so that the batteries and the interior thereof are both in a negative pressure environment; and then the glue nail is correspondingly plugged into the liquid injection hole of the battery by adopting a push-pull rod pressing mode, so that the sealing is realized. The device simple structure, convenient operation can realize sealing the batch vacuum of a plurality of batteries simultaneously, seals efficiently.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. The utility model provides a lithium cell negative pressure seals frock which characterized in that includes:
the vacuum box body is used for placing a lithium battery to be sealed, a vacuum pipeline communicated with the inner cavity is arranged on the outer wall of the vacuum box body, at least one row of glue nail holes are formed in the top wall of the vacuum box body, and glue nail tubes extending downwards are formed in the inner cavity of the vacuum box body corresponding to each glue nail hole; and
and the push-pull rod comprises a press block and a plurality of rod shafts fixedly connected to one side face of the press block, the rod shafts correspond to the glue nail holes one by one and are used for pressing the glue nails in the glue nail holes so as to enable the glue nails to pass through the glue nail pipes and be plugged into the liquid injection holes of the lithium battery.
2. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein a positioning guide rail for fixing the lithium battery is arranged in the vacuum box body.
3. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein the door of the vacuum box body is provided with an observation window.
4. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein a switch valve is arranged on the vacuum pipeline.
5. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein a vacuum gauge is arranged on the vacuum box body.
6. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein the pressing block is a metal block, and is fixedly connected to the rod shaft through a fixing member.
7. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein a rounded chamfer is provided at the end of the rod shaft.
8. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein the rod shaft is in clearance fit with the glue nail hole and the pipe hole of the glue nail pipe.
9. The lithium battery negative pressure sealing tool as claimed in claim 1, wherein the rubber nail comprises a rubber nail body and a rubber nail root, the rubber nail root and the tube hole of the rubber nail tube are in interference fit, and the diameter of the rubber nail root is larger than that of the lithium battery liquid injection hole.
10. The lithium battery negative pressure sealing tool as claimed in claim 9, wherein a round head is arranged at the tail end of the rubber nail body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221924027.6U CN218182278U (en) | 2022-07-25 | 2022-07-25 | Negative pressure sealing tool for lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221924027.6U CN218182278U (en) | 2022-07-25 | 2022-07-25 | Negative pressure sealing tool for lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218182278U true CN218182278U (en) | 2022-12-30 |
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ID=84615046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221924027.6U Active CN218182278U (en) | 2022-07-25 | 2022-07-25 | Negative pressure sealing tool for lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218182278U (en) |
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2022
- 2022-07-25 CN CN202221924027.6U patent/CN218182278U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231116 Address after: No. 1 Binjiang Road, Zhuyuan Town, Qingchuan County, Guangyuan City, Sichuan Province, 628000 (No. 56, 1st Floor, Qingchuan Economic Development Zone Management Committee) Patentee after: Sichuan Xingheng Qingyuan New Material Technology Co.,Ltd. Address before: 215000 181 Jinshajiang Road, science and Technology City, high tech Zone, Suzhou City, Jiangsu Province Patentee before: PHYLION BATTERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |