CN215451699U - Built-in battery core of rechargeable lithium battery - Google Patents

Built-in battery core of rechargeable lithium battery Download PDF

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Publication number
CN215451699U
CN215451699U CN202121242067.8U CN202121242067U CN215451699U CN 215451699 U CN215451699 U CN 215451699U CN 202121242067 U CN202121242067 U CN 202121242067U CN 215451699 U CN215451699 U CN 215451699U
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China
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negative
positive
terminal
plate
core
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Active
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CN202121242067.8U
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Chinese (zh)
Inventor
宋浩堂
李林森
黄明咏
文辰
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Dongguan Weike New Energy Co ltd
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Dongguan Weike New Energy Co ltd
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Priority to CN202121242067.8U priority Critical patent/CN215451699U/en
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Abstract

The utility model relates to the technical field of batteries, in particular to a built-in battery core of a rechargeable lithium battery, which comprises a winding core, an injection molding piece, a protective plate, a positive terminal and a negative terminal, wherein one side of the upper end of the winding core is provided with a positive connecting end, the other side and the lower end of the upper end of the winding core are provided with negative connecting ends, the protective plate is arranged at the upper end of the winding core, the upper end of the protective plate is provided with a positive plate and a negative plate, the positive terminal is welded on the positive plate, the negative terminal is welded on the negative plate, the positive connecting end is connected with the positive terminal, the negative connecting end is connected with the negative terminal, the injection molding piece is wrapped on the protective plate, the winding core and the protective plate can be simultaneously connected, the protection plate is protected by the injection molding piece, a test is carried out before the assembly, and then the built-in battery core is assembled into a shell of the lithium battery, one-time test procedures are reduced, and the production cost is reduced.

Description

Built-in battery core of rechargeable lithium battery
Technical Field
The utility model relates to the technical field of batteries, in particular to a built-in battery core of a rechargeable lithium battery.
Background
Batteries can be classified into various types according to their sizes. The common types include AAA, AA, C, D, which correspond to the commonly-known batteries 7, 5, 2, 1, wherein the battery 1 and the battery 5 are most widely used, the battery 1 is widely used in civil use, military industry, and special dc power supplies, and the battery 5 is more widely used in daily life, such as digital cameras, electric toys, and the like. The existing battery roll core and the existing protection plate are respectively arranged, so that multiple tests are required in installation, and the test and installation costs are high.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the problems of the prior art, and provides a built-in battery cell for a rechargeable lithium battery.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a built-in battery core of a rechargeable lithium battery, which comprises a winding core, an injection molding piece, a protection plate, a positive terminal and a negative terminal, wherein one side of the upper end of the winding core is provided with a positive connecting end, the other side and the lower end of the upper end of the winding core are provided with negative connecting ends, the protection plate is arranged at the upper end of the winding core, the positive terminal is welded on the positive plate, the negative terminal is welded on the negative plate, the positive connecting end is connected with the positive terminal, the negative connecting plate is connected with the negative terminal, and the injection molding piece is wrapped on the protection plate.
Preferably, the positive electrode terminal and the negative electrode terminal are both provided in an "L" shape.
Preferably, the positive terminal and the negative terminal are both made of nickel-plated aluminum strips, and the thickness of the positive terminal and the thickness of the negative terminal are both 0.05-0.2 cm.
Preferably, the middle parts of the injection molding part and the protective plate are provided with avoidance holes.
Preferably, the winding core is a cylinder, and the inside of the winding core is immersed with electrolyte.
Preferably, the bottom of the winding core is provided with an insulating sheet, and the negative electrode connecting end extends to the outer end of the insulating sheet.
The utility model has the beneficial effects that:
the utility model provides a built-in battery core of a rechargeable lithium battery, which comprises a winding core, an injection molding piece, a protective plate, a positive terminal and a negative terminal, wherein one side of the upper end of the winding core is provided with a positive connecting end, the other side and the lower end of the upper end of the winding core are provided with negative connecting ends, the protective plate is arranged at the upper end of the winding core, a positive plate and a negative plate are arranged at the upper end of the protective plate, the positive terminal is welded on the positive plate, the negative terminal is welded on the negative plate, the positive connecting end is connected with the positive terminal, the negative connecting plate is connected with the negative terminal, and the injection molding piece is wrapped on the protective plate. One-time test procedures are reduced, and the production cost is reduced.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
The reference numerals are respectively:
the structure comprises a winding core-1, an injection molding piece-2, a protective plate-3, a positive terminal-4, a negative terminal-5, a positive connecting end-6, a negative connecting end-7, a positive plate-8, a negative plate-9, a avoiding hole-10 and an insulating sheet-11.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1-2, the present invention provides a built-in battery core of a rechargeable lithium battery, which comprises a winding core 1, an injection molded part 2, a protection plate 3, a positive terminal 4, and a negative terminal 5, wherein one side of the upper end of the winding core 1 is provided with a positive connecting end 6, the other side and the lower end of the upper end of the winding core 1 are provided with negative connecting ends 7, the protection plate 3 is mounted on the upper end of the winding core 1, the upper end of the protection plate 3 is provided with a positive plate 8 and a negative plate 9, the positive terminal 4 is welded on the positive plate 8, the negative terminal 5 is welded on the negative plate 9, the positive connecting end 6 is connected with the positive terminal 4, the negative connecting plate is connected with the negative terminal 5, the injection molded part 2 is wrapped on the protection plate 3, the present invention can connect the winding core 1 and the protection plate 3 at the same time, and protect the protection plate 3 through the injection molded part 2, the test is carried out once before the assembly, and then the lithium battery shell is assembled in the lithium battery shell, so that the test procedure is reduced once, and the production cost is reduced.
In this embodiment, to prevent assembly, the positive terminal 4 and the negative terminal 5 are both set to be "L" shaped, the positive terminal 4 and the negative terminal 5 are both made of nickel-plated aluminum tape, and the thickness of the positive terminal 4 and the thickness of the negative terminal 5 are both 0.05-0.2 cm.
In this embodiment, the middle part of the injection molding part 2 and the middle part of the protection plate 3 are provided with avoidance holes 10, and the avoidance holes 10 are convenient for welding the negative electrode connecting end 7 on the battery shell during assembly.
In this embodiment, core 1 is the cylinder, core 1 is inside to be soaked with electrolyte.
In this embodiment, roll up 1 bottom of core and be provided with insulating piece 11, negative pole link 7 extends to insulating piece 11 outer end, and insulating piece 11 prevents to roll up 1 bottom of core and contact with battery case.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (6)

1. A built-in battery cell for a rechargeable lithium battery, comprising: including rolling up core, injection molding, protection shield, positive terminal, negative terminal, it is provided with anodal link to roll up core upper end one side, it is provided with the negative link to roll up core upper end opposite side and lower extreme, the protection shield install in roll core upper end, the protection shield upper end is provided with positive plate and negative plate, positive terminal weld in on the positive plate, the negative terminal weld in on the negative plate, positive link with positive terminal connects, the negative link with the negative terminal is connected, the injection molding wrap up in on the protection shield.
2. The built-in battery cell of a rechargeable lithium battery as claimed in claim 1, wherein: the positive terminal and the negative terminal are both set to be L-shaped.
3. The built-in battery cell of a rechargeable lithium battery as claimed in claim 1, wherein: the positive terminal and the negative terminal are both made of nickel-plated aluminum strips, and the thickness of the positive terminal and the thickness of the negative terminal are both 0.05-0.2 cm.
4. The built-in battery cell of a rechargeable lithium battery as claimed in claim 1, wherein: injection molding middle part with the protection shield middle part all is provided with dodges the hole.
5. The built-in battery cell of a rechargeable lithium battery as claimed in claim 1, wherein: the roll core is a cylinder, and electrolyte is soaked in the roll core.
6. The built-in battery cell of a rechargeable lithium battery as claimed in claim 1, wherein: the bottom of the winding core is provided with an insulating sheet, and the negative electrode connecting end extends to the outer end of the insulating sheet.
CN202121242067.8U 2021-06-03 2021-06-03 Built-in battery core of rechargeable lithium battery Active CN215451699U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121242067.8U CN215451699U (en) 2021-06-03 2021-06-03 Built-in battery core of rechargeable lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121242067.8U CN215451699U (en) 2021-06-03 2021-06-03 Built-in battery core of rechargeable lithium battery

Publications (1)

Publication Number Publication Date
CN215451699U true CN215451699U (en) 2022-01-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121242067.8U Active CN215451699U (en) 2021-06-03 2021-06-03 Built-in battery core of rechargeable lithium battery

Country Status (1)

Country Link
CN (1) CN215451699U (en)

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