CN214123981U - Square lithium cell Mylar protection film hot melt structure - Google Patents
Square lithium cell Mylar protection film hot melt structure Download PDFInfo
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- CN214123981U CN214123981U CN202120220970.8U CN202120220970U CN214123981U CN 214123981 U CN214123981 U CN 214123981U CN 202120220970 U CN202120220970 U CN 202120220970U CN 214123981 U CN214123981 U CN 214123981U
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- mylar
- square lithium
- hot melt
- electrode pin
- protection film
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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 provides a square lithium cell Mylar protection film hot melt structure, including Mylar protection film (1), electric core (2), top cap (3) and two electrode pin (4), two electrode pin (4) fixed mounting is on top cap (3), two electrode pin (4) are connected with one of them in the two electrodes of electric core (2) respectively, and Mylar protection film (1) parcel electric core (2), two fixed mounting glues piece (5) on at least one electrode pin (4) in electrode pin (4), glue piece (5) with Mylar protection film (1) has the contact surface. This hot melt structure sets up gluey piece on electrode pin, conveniently with the direct hot melt of Mylar protection film on gluing the piece, raises the efficiency, saves manufacturing cost.
Description
Technical Field
The utility model relates to a square lithium cell Mylar protection film hot melt structure belongs to square lithium cell inner structure field.
Background
The square battery firmly occupies the first position of a power battery technical route by virtue of the advantages of small internal resistance, long cycle life, high packaging reliability, good tolerance, relatively simple grouping, high system energy efficiency and the like: statistical data show that the domestic cylindrical, soft-package and square lithium batteries have yields of 13.92GWH, 21.64GWH and 28.14GWH in 2016 and account for 21.85%, 33.97% and 44.17% respectively.
According to the traditional Mylar protection film mounting structure, the side Mylar protection film is mainly bound by using a rubberizing method or directly wrapped by a bag to form the Mylar protection film, and the traditional rubberizing binding method is low in assembly efficiency and high in cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem and provide a square lithium cell Mylar protection film hot melt structure, aim at: this hot melt structure sets up gluey piece on electrode pin, conveniently with the direct hot melt of Mylar protection film on gluing the piece, raises the efficiency, saves manufacturing cost.
The utility model aims at realizing above-mentioned purpose and provide a square lithium cell Mylar protection film hot melt structure, including Mylar protection film, electric core, top cap and two electrode pins, two electrode pin fixed mounting is on the top cap, two electrode pin is connected with one of them in the two electrodes of electric core respectively, and Mylar protection film parcel electricity core, two fixed mounting glues the piece on at least one electrode pin in the electrode pin, glue the piece with the Mylar protection film has the contact surface, glues piece and Mylar protection film contact segment, uses ultrasonic technology to weld.
Furthermore, in order to ensure that the electrode pins and the rubber blocks are stably connected and are not easy to fall off, one side, facing the Mylar protective film, of each electrode pin is provided with a rubber block fixing groove, and the rubber blocks are embedded into the rubber block fixing grooves and partially exposed out of the rubber blocks.
Further, in order to increase the contact length of the Mylar protective film and the electrode pins in the extension direction of the square lithium battery and improve the connection strength of the Mylar protective film and the electrode pins after ultrasonic welding, the glue block fixing groove is arranged to be a strip-shaped groove, the extension direction of the glue block is the same as that of the square lithium battery, the glue block is arranged to be a strip shape, and the extension direction of the glue block is the same as that of the square lithium battery.
Furthermore, in order to enable the connection between the Mylar protective film and the electrode pins to be stable and further enable the connection between the Mylar protective film and the top cover to be firmer, the two electrode pins are fixedly provided with the rubber blocks.
Further, in order to avoid increasing the thickness of the square lithium battery, the electrode pins are arranged at two ends of the top cover in the extending direction, and the contact positions of the Mylar protective film and the electrode pins are arranged at the side positions of the square lithium battery.
The square lithium cell is the cuboid, the utility model discloses explain when using the vertical placing of square lithium cell, square lithium cell front-back is the big face, controls two facet and is the side.
The utility model has the advantages that:
1. the rubber block is fixedly arranged on the electrode pin, and the contact part of the rubber block and the Mylar protective film directly thermally melts the Mylar protective film on the plastic block, so that the original rubberizing process is replaced, the efficiency is improved, and the production cost is saved.
2. One side of the electrode pin facing the Mylar protective film is provided with a rubber block fixing groove, the rubber block is embedded in the rubber block fixing groove and partially exposed out of the rubber block, so that the electrode pin and the rubber block are stably connected and are not easy to fall off.
3. The utility model discloses a lithium battery, including the square lithium battery, glue piece fixed slot, extension direction and electrode pin, glue the piece fixed slot and set up to the bar groove, and the extension direction is the same with the extension direction of this square lithium battery, glue the piece and set up to the bar, and the extension direction is the same with the extension direction of this square lithium battery, increases the contact length of Mylar protection film and electrode pin in this square lithium battery extension direction, improves the joint strength of Mylar protection film and electrode pin.
4. And the two electrode pins are fixedly provided with the rubber blocks, so that the connection between the Mylar protective film and the electrode pins is stable, and the connection between the Mylar protective film and the top cover is firmer.
5. The electrode pins are arranged at two ends of the top cover in the extending direction, and the contact positions of the Mylar protective film and the electrode pins are arranged on the side face of the square lithium battery, so that the thickness of the square lithium battery is prevented from being increased.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a schematic view of the connection of the top cover, the electrode pins and the rubber blocks of the present invention.
Fig. 3 is a schematic view of the electrode pin of the present invention.
In the figure: 1. a Mylar protective film; 2. an electric core; 3. a top cover; 4. an electrode pin; 5. and (5) gluing blocks.
Detailed Description
In order to make the utility model discloses an aim at, technical scheme and advantage are clearer, it is right below to combine the figure the utility model discloses do further explanation, square lithium cell is the cuboid, the utility model discloses explain when using square lithium cell vertical placing, square lithium cell front-back is big face, controls two facet and is the side.
The Mylar protective film hot-melt structure of the square lithium battery shown in fig. 1-3 comprises a Mylar protective film 1, an electric core 2, a top cover 3 and two electrode pins 4, wherein the two electrode pins 4 are fixedly installed on the top cover 3, the two electrode pins 4 are respectively connected with one of two electrodes of the electric core 2, the Mylar protective film 1 wraps the electric core 2, glue blocks 5 are fixedly installed on the two electrode pins 4, and the glue blocks 5 and the Mylar protective film 1 have contact surfaces.
Based on the above embodiment, one side of the electrode pin 4 facing the Mylar protective film 1 is provided with a rubber block fixing groove 4-1, and the rubber block 5 is embedded in the rubber block fixing groove 4-1 and exposes a part of the rubber block 5.
Based on the above embodiment, the glue block fixing groove 4-1 is a strip groove, and the extension direction is the same as the extension direction of the square lithium battery, and the glue block 5 is a strip and the extension direction is the same as the extension direction of the square lithium battery.
Based on the above embodiment, the electrode pins 4 are disposed at two ends of the top cover 3 in the extending direction, and the contact positions of the Mylar protective film 1 and the electrode pins 4 are disposed at the side positions of the square lithium battery.
The rubber block 5 is embedded in the electrode pin, the contact part of the rubber block 5 and the Mylar protective film 1 directly melts the Mylar protective film 1 on the plastic block, the original rubberizing process is replaced, the efficiency is improved, and the production cost is saved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a square lithium cell Mylar protection film hot melt structure which characterized in that: including Mylar protection film (1), electric core (2), top cap (3) and two electrode pin (4), two electrode pin (4) fixed mounting is on top cap (3), two electrode pin (4) are connected with one of them in two electrodes of electric core (2) respectively, and Mylar protection film (1) parcel electric core (2), two fixed mounting glues piece (5) on at least one electrode pin (4) in electrode pin (4), glue piece (5) with Mylar protection film (1) has the contact surface.
2. The Mylar protective film hot melt structure of a square lithium battery as claimed in claim 1, wherein: one side, facing the Mylar protective film (1), of the electrode pin (4) is provided with a rubber block fixing groove (4-1), and the rubber block (5) is embedded in the rubber block fixing groove (4-1) and is partially exposed out of the rubber block (5).
3. The Mylar protective film hot melt structure of a square lithium battery as claimed in claim 2, wherein: the glue block fixing groove (4-1) is a strip-shaped groove, and the extension direction of the glue block fixing groove is the same as that of the square lithium battery.
4. The Mylar protective film hot melt structure of a square lithium battery as claimed in claim 3, wherein: the rubber block (5) is arranged to be strip-shaped, and the extension direction of the rubber block is the same as that of the square lithium battery.
5. The Mylar protective film hot melt structure of a square lithium battery as claimed in claim 1, wherein: and the two electrode pins (4) are fixedly provided with the rubber blocks (5).
6. The Mylar protective film hot melt structure of a square lithium battery as claimed in claim 1, wherein: the electrode pins (4) are arranged at two ends of the top cover (3) in the extending direction, and the contact positions of the Mylar protective film (1) and the electrode pins (4) are arranged on the side face of the square lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120220970.8U CN214123981U (en) | 2021-01-27 | 2021-01-27 | Square lithium cell Mylar protection film hot melt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120220970.8U CN214123981U (en) | 2021-01-27 | 2021-01-27 | Square lithium cell Mylar protection film hot melt structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214123981U true CN214123981U (en) | 2021-09-03 |
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ID=77495908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120220970.8U Active CN214123981U (en) | 2021-01-27 | 2021-01-27 | Square lithium cell Mylar protection film hot melt structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214123981U (en) |
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2021
- 2021-01-27 CN CN202120220970.8U patent/CN214123981U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 361100 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Province Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: 361000 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |