CN107706444B - A battery cell assembly structure and a USB rechargeable battery using the same - Google Patents
A battery cell assembly structure and a USB rechargeable battery using the same Download PDFInfo
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- CN107706444B CN107706444B CN201711076996.4A CN201711076996A CN107706444B CN 107706444 B CN107706444 B CN 107706444B CN 201711076996 A CN201711076996 A CN 201711076996A CN 107706444 B CN107706444 B CN 107706444B
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- circuit board
- battery cell
- protection circuit
- metal shell
- socket
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 42
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000003466 welding Methods 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
本发明公开一种电芯装配结构及使用该结构的可充电电池,包括正极组件、保护电路板以及电芯，电芯采用刚性极针，保护电路板上设置有插座，插座上设置有与极针相配合的插孔，极针与插孔紧密配合形成电连接以使电芯与插座电连接，正极组件包括正极帽以及保护板支撑结构，保护电路板设置在保护板支撑结构上。通过采用上述结构，在保护电路板生产测试完成后，只需要将其直接插入电芯就完成了装配，装配简单便于实现生产自动化，同时能够保证产品的可靠性。本方案解决了电池电芯与保护电路板以及金属外壳的连接问题，能够有效的降低产品成本和人工焊接带来的不安全隐患。本方案提供的USB电池具有更好的使用性能。
The present invention discloses a battery cell assembly structure and a rechargeable battery using the structure, including a positive electrode assembly, a protection circuit board and a battery cell. The battery cell adopts a rigid pole pin, a socket is provided on the protection circuit board, and a jack matched with the pole pin is provided on the socket. The pole pin and the jack are closely matched to form an electrical connection so that the battery cell is electrically connected to the socket. The positive electrode assembly includes a positive pole cap and a protection board support structure, and the protection circuit board is arranged on the protection board support structure. By adopting the above structure, after the production and testing of the protection circuit board is completed, it only needs to be directly inserted into the battery cell to complete the assembly. The assembly is simple and convenient to realize production automation, and the reliability of the product can be guaranteed at the same time. This solution solves the connection problem between the battery cell and the protection circuit board and the metal shell, and can effectively reduce the product cost and the unsafe hidden dangers caused by manual welding. The USB battery provided by this solution has better performance.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery core assembly structure and a USB rechargeable battery using the same.
Background
The battery is used as a common daily article and widely applied to various devices such as toys, key mice, remote controllers, cameras, aeromodelling, flashlights, electronic door locks, electronic clocks and watches and other various products. The main batteries in the market are disposable carbon batteries, alkaline batteries, and rechargeable nickel-manganese, nickel-chromium, nickel-hydrogen batteries, etc. With the increasing maturity of lithium battery technology and the advantages of high energy density, quick charge, environmental protection, no memory effect and the like, lithium rechargeable batteries gradually appear in the market and become a popular trend.
The existing lithium rechargeable battery structure with a built-in USB interface is composed of a battery core, a protection and voltage conversion circuit board (collectively called a protection circuit board), a shell and other parts. The battery core is packaged by a soft package or a metal shell, and the protection board is composed of a lithium battery protection circuit, a voltage conversion circuit and a charging management circuit. The electrical connection between the battery core and the protection circuit board adopts a welding mode. The mode brings great trouble to production and manufacture, has low productivity and high cost, and is easy to generate phenomena of poor welding, short circuit and the like.
Disclosure of Invention
The invention aims to provide a battery core assembly structure and a USB rechargeable battery using the same, which can solve the technical problems in the prior art.
To achieve the purpose, the invention adopts the following technical scheme:
In one aspect, a battery cell assembly structure is provided, including anodal subassembly, protection circuit board and battery cell, the battery cell adopts the rigid utmost point needle, be provided with the socket on the protection circuit board, be provided with on the socket with utmost point needle matched with jack, the utmost point needle with jack close fit forms the electricity and is connected so that the battery cell with the socket electricity is connected, anodal subassembly includes anodal cap and protection shield bearing structure, the protection circuit board sets up on the protection shield bearing structure.
As a preferred technical scheme of the battery cell assembly structure, the protection board supporting structure is detachably connected with the protection circuit board, the protection board supporting structure comprises a supporting main body with a cylindrical structure, a through hole for installing the protection circuit board is formed in the supporting main body, the protection circuit board penetrates through one end of the through hole to be connected with a pole needle of the battery cell, and the other end of the protection circuit board is connected with a positive pole post.
As a preferred technical scheme of the battery cell assembly structure, the socket comprises a socket main body, the end part of the socket main body, which faces the battery cell, is provided with the jack, the end part of the socket main body, which is far away from the jack, is provided with a lead wire, and the pole needle is electrically connected with the protection circuit board through the lead wire after being tightly matched with the jack.
As a preferable technical scheme of the battery core assembly structure, the protection circuit board is provided with a negative electrode grounding piece, the negative electrode grounding piece is made of a metal elastic sheet, the negative electrode grounding piece is provided with a grounding piece first end electrically connected with the protection circuit board and a grounding piece second end far away from the protection circuit board, and the grounding piece second end is abutted with the metal shell under the condition that the protection circuit board is mounted in the metal shell.
As a preferable technical scheme of the battery core assembly structure, an annular boss is arranged outside the support main body, and the annular boss is located between the positive electrode cap and the metal shell in an assembled state so as to enable the positive electrode cap to be insulated from the metal shell relatively.
As a preferable technical scheme of the battery cell assembly structure, the battery cell assembly structure further comprises a metal shell for installing the battery cell, wherein the metal shell is of a cylindrical structure with one end closed, and the opening end of the metal shell is used for packaging the battery cell through an explosion-proof plug.
As a preferred technical scheme of the battery cell assembly structure, the explosion-proof plug is fixedly connected with the metal shell, the explosion-proof plug comprises an explosion-proof plug main body, the explosion-proof plug main body is provided with a pressure relief part with strength weaker than that of the explosion-proof plug main body, and two ends of the pressure relief part are respectively communicated with the inside of the metal shell and the outside of the metal shell.
As a preferable technical scheme of the battery cell assembly structure, the positive electrode cap and the protection plate support structure are of an integrated structure and are integrally formed by in-mold injection molding.
In another aspect, a USB rechargeable battery is provided, and the battery cell assembly is performed using the battery cell assembly structure as described above.
The invention has the beneficial effects that by adopting the structure, after the production test of the protective circuit board is finished, the assembly is finished only by directly inserting the protective circuit board into the battery core, the assembly is simple and convenient to realize production automation, and meanwhile, the reliability of the product can be ensured. The scheme solves the problem of connection between the battery core and the protection circuit board as well as between the battery core and the metal shell, and can effectively reduce the product cost and the unsafe hidden trouble caused by manual welding. The USB battery provided by the scheme has better service performance.
Drawings
The invention is described in further detail below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of an exploded structure of a battery cell, a metal housing, and an explosion-proof plug according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a battery structure according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view showing another view of the structure of the battery according to the embodiment of the present invention.
Fig. 4 is an enlarged view of fig. 3 at I.
Fig. 5 is a schematic view illustrating an exploded state of a battery according to an embodiment of the present invention.
In the figure:
1. A positive electrode assembly; 2, a protection circuit board, 3, a battery core, 4, a pole pin, 5, a socket, 6, a protection board supporting structure, 7, a supporting main body, 8, a socket main body, 9, an inserting hole, 10, a lead, 11, a negative electrode grounding plate, 12, an annular boss, 13, a metal shell, 14 and an explosion-proof plug.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1 to 5, in this embodiment, the battery core assembly structure of the present invention includes a positive electrode assembly 1, a protection circuit board 2 and a battery core 3, the battery core 3 employs a rigid electrode pin 4, a socket 5 is disposed on the protection circuit board 2, a jack 9 matched with the electrode pin 4 is disposed on the socket 5, the electrode pin 4 and the jack 9 are tightly matched to form an electrical connection so that the battery core 3 and the socket 5 are electrically connected, the positive electrode assembly 1 includes a positive electrode cap and a protection board support structure 6, and the protection circuit board 2 is disposed on the protection board support structure 6.
Through adopting above-mentioned structure, after the production test of protection circuit board 2 is accomplished, only need with its direct insertion electric core 3 just accomplish the assembly, the assembly is simple and is convenient for realize production automation, can guarantee the reliability of product simultaneously. The problem of battery cell 3 and protection circuit board 2 and metal casing's connection has been solved to this scheme, can effectually reduce the unsafe hidden danger that product cost and manual welding brought.
In order to improve the stability of the arrangement of the protection circuit board 2, in this embodiment, the protection board support structure 6 is provided to support the protection circuit board 2, the connection mode and the relative positional relationship between the protection board support structure 6 and the protection circuit board 2 may be various, and in this embodiment, the protection board support structure 6 and the protection circuit board 2 are detachably connected.
Specifically, in this embodiment, the protection board support structure 6 includes a support body 7 having a cylindrical structure, a through hole for mounting the protection circuit board 2 is provided in the support body 7, the protection circuit board 2 penetrates through the through hole, one end of the protection circuit board 2 is connected with the electrode pin 4 of the battery core 3, and the other end of the protection circuit board is connected with the positive electrode post.
In the scheme, a metal shell 13 is connected with the cathode of a battery core 3 to form a battery cathode, and a positive pole is arranged on a protective circuit board 2 and is electrically connected with the positive pole of the battery core 3 to form the battery anode. The positive electrode post on the protection circuit board 2 passes through the through hole on the support body 7 and protrudes to the outside of the support body 7.
The socket 5 comprises a socket main body 8, the end part of the socket main body 8, which faces the battery core 3, is provided with the jack 9, the end part of the socket main body 8, which is far away from the jack 9, is provided with a lead 10, and the pole pin 4 is electrically connected with the protection circuit board 2 through the lead 10 after being tightly matched with the jack 9.
In the scheme, the socket 5 is arranged on the protection circuit board 2, so that the positive electrode and the negative electrode of the battery cell 3 can be electrically connected with the protection circuit board 2 in a plugging mode with the socket 5, the working efficiency can be effectively improved relative to a welded structure, the product qualification rate is better ensured, and the production cost is reduced.
The protection circuit board 2 is provided with a negative electrode grounding piece 11, the negative electrode grounding piece 11 is made of a metal elastic sheet, the negative electrode grounding piece 11 is provided with a grounding piece first end electrically connected with the protection circuit board 2 and a grounding piece second end far away from the protection circuit board 2, and the grounding piece second end is abutted with the metal shell 13 under the condition that the protection circuit board 2 is mounted in the metal shell 13.
In this scheme, through setting up the negative pole earthing piece 11 that adopts metal shrapnel to support and carrying out the butt with metal casing 13 and realize the ground connection, can effectually reduce contact resistance to guarantee the reliability of contact.
Specifically, in the present embodiment, an annular boss 12 is provided outside the support body 7, and in the assembled state, the annular boss 12 is located between the positive electrode cap and the metal housing 13 to relatively insulate the positive electrode cap from the metal housing 13.
The embodiment also comprises a metal shell 13 for installing the battery cell 3, wherein the metal shell 13 is of a cylindrical structure with one end closed, and the open end of the metal shell 13 encapsulates the battery cell 3 through an explosion-proof plug 14. The explosion-proof plug 14 is fixedly connected with the metal shell 13, the explosion-proof plug 14 comprises an explosion-proof plug main body, a pressure release part with strength weaker than that of the explosion-proof plug main body is arranged on the explosion-proof plug main body, and two ends of the pressure release part are respectively communicated with the inside of the metal shell 13 and the outside of the metal shell 13.
In other embodiments, the positive cap and the protective plate support structure 6 may be formed as a single piece by in-mold injection molding.
The invention further provides a battery core assembly structure, which comprises a positive electrode component, a protective circuit board and a battery core, wherein the battery core adopts a rigid electrode needle, the positive electrode component comprises a positive electrode cap and a protective plate supporting structure, the protective circuit board is arranged on the protective plate supporting structure, and the electrode needle is electrically connected with the protective circuit board in a welding mode.
Meanwhile, in this embodiment, a USB rechargeable battery is further provided, and the battery cell 3 is assembled by adopting the battery cell assembling structure as described above.
In the description herein, it should be understood that the terms "upper," "lower," "right," and the like are used for convenience in description and simplicity of operation only, and are not to be construed as limiting the invention, as the devices or elements referred to must have, be constructed or operated in a particular orientation. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.
In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711076996.4A CN107706444B (en) | 2017-11-06 | 2017-11-06 | A battery cell assembly structure and a USB rechargeable battery using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711076996.4A CN107706444B (en) | 2017-11-06 | 2017-11-06 | A battery cell assembly structure and a USB rechargeable battery using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107706444A CN107706444A (en) | 2018-02-16 |
| CN107706444B true CN107706444B (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711076996.4A Active CN107706444B (en) | 2017-11-06 | 2017-11-06 | A battery cell assembly structure and a USB rechargeable battery using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107706444B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864249B (en) * | 2020-08-31 | 2025-01-21 | 东莞市中天和新能源科技有限公司 | Sealed and waterproof rechargeable battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08115714A (en) * | 1994-10-14 | 1996-05-07 | Hitachi Maxell Ltd | Explosion-proof sealed battery |
| CN107069130A (en) * | 2017-06-08 | 2017-08-18 | 张磊 | A kind of USB charging accumulator structures |
| CN107275557A (en) * | 2017-08-03 | 2017-10-20 | 深圳市新昊青科技有限公司 | Universal rechargeable battery and its assemble method that a kind of use lithium-ion electric core is constituted |
| CN207517796U (en) * | 2017-11-06 | 2018-06-19 | 惠州亿纬锂能股份有限公司 | A kind of battery core assembling structure and the USB rechargeable batteries using the structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2420659B (en) * | 2004-11-25 | 2006-10-11 | Simon Richard Daniel | Collapsible rechargeable battery assembly with integral connector |
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2017
- 2017-11-06 CN CN201711076996.4A patent/CN107706444B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08115714A (en) * | 1994-10-14 | 1996-05-07 | Hitachi Maxell Ltd | Explosion-proof sealed battery |
| CN107069130A (en) * | 2017-06-08 | 2017-08-18 | 张磊 | A kind of USB charging accumulator structures |
| CN107275557A (en) * | 2017-08-03 | 2017-10-20 | 深圳市新昊青科技有限公司 | Universal rechargeable battery and its assemble method that a kind of use lithium-ion electric core is constituted |
| CN207517796U (en) * | 2017-11-06 | 2018-06-19 | 惠州亿纬锂能股份有限公司 | A kind of battery core assembling structure and the USB rechargeable batteries using the structure |
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| Publication number | Publication date |
|---|---|
| CN107706444A (en) | 2018-02-16 |
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