CN205282582U - Ultra -thin formula lithium cell - Google Patents
Ultra -thin formula lithium cell Download PDFInfo
- Publication number
- CN205282582U CN205282582U CN201520736696.4U CN201520736696U CN205282582U CN 205282582 U CN205282582 U CN 205282582U CN 201520736696 U CN201520736696 U CN 201520736696U CN 205282582 U CN205282582 U CN 205282582U
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- CN
- China
- Prior art keywords
- lithium cell
- contact
- ultra
- flexible pcb
- thin formula
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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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- 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
Abstract
The utility model relates to a technical field of lithium cell discloses ultra -thin formula lithium cell for provide the electric energy for electronic equipment, including electric core, still include the flexible circuit board, be equipped with the circuit on the flexible circuit board, follow the circuit is equipped with a plurality of pads that are used for being connected and the circuit structure of constitution protection shield circuit with outside electricity, the flexible circuit board back still serves as a contrast and is equipped with the steel sheet of thickness for 0.1mm. The utility model provides an ultra -thin formula lithium cell, it has left out guarantor protection plate structure, and the circuit structure that will formerly bear the weight of on the protection shield sets up on the flexible circuit board, has not only saved the thickness of protection shield itself, and the flexible circuit board need not to weld with the protection shield simultaneously, has also reduced the space that the flexible circuit board occupied, makes whole ultra -thin formula lithium cell can reduce holistic thickness.
Description
Technical field
The utility model relates to the technical field of lithium cell, particularly relates to ultra-thin formula lithium cell.
Background technology
Lithium cell is a kind of application battery widely in prior art, its energy density height, capacity is 1.5��2 times of the nickel metal hydride battery of same weight, there is very low self-discharge rate, almost do not have " memory effect ", and not containing toxic substance, become most electronics on the market and adopted power supply. Owing to the capacity of lithium cell is relevant with volume, and it is applied on various carry-on electronics, having strict volume requirement on the built-in lithium cell such as exempting from dismounting and Wearable digital product, the thickness how reducing lithium cell becomes an important research direction.
Lithium cell mainly comprises three major parts: battery core, protecting sheet and FPC, and wherein battery core is made primarily of encapsulation such as positive plate, barrier film, negative plate winding or stacking, packaging, perfusion electrolytic solution, undertakes the effect storing release electricity; It is protection lithium cell that protecting sheet mainly acts on, and ensures to have between each cell less voltage differences; FPC (FlexiblePrintedCircuitboard: flexible PCB) is for the electric connection of lithium cell and cell phone mainboard.
In the prior art, protecting sheet is absolute construction, and its base plate base material generally adopts FR4 material, and the most minimal thickness of the protecting sheet of finished product also has about 1.7mm; FPC needs to be welded with protecting sheet by pad, and the thickness of welding place is difficult to control, causes the thickness of lithium cell to be affected, it is difficult to accomplish ultra-thin. The demand that user is ultra-thin can not be met.
Practical novel content
The purpose of this utility model is to provide ultra-thin formula lithium cell, it is intended to solve the problem that in prior art, lithium cell thickness is bigger.
The utility model realizes like this; ultra-thin formula lithium cell; for providing electric energy for electronics; comprise battery core; also comprise flexible PCB; described flexible PCB is provided with circuit, is provided with for the circuit structure with multiple pad and composition protecting sheet circuit of external electrical connections along described circuit, and described flexible circuit back is also lined with the steel plate that thickness is 0.1mm.
Further, described circuit structure comprises the MOS pipe using the encapsulation of DFN formula.
Further, described circuit structure also comprise SMD be installed on described flexible PCB resistance, electric capacity.
Further, described flexible PCB is provided with the USB contact of corresponding USB plug, and described USB contact place is provided with described pad.
Further, described flexible PCB is provided with can for the B+ contact of described battery core electrical connection, B-contact, and described B+ contact and described B-contact place are provided with described pad.
Further, described flexible PCB is provided with can for the P+ contact of described electronics electrical connection, P-contact, and described P+ contact overlaps with described B+ contact, and described P-contact place is provided with described pad.
Compared with prior art; ultra-thin formula lithium cell in the utility model; which omits protecting sheet structure; by the former circuit vibrational power flow being carried on protecting sheet on flexible PCB; not only save the thickness of protecting sheet itself; flexible PCB is without the need to welding with protecting sheet simultaneously, decreases the space occupied by flexible PCB, makes whole ultra-thin formula lithium cell can reduce overall thickness.
Accompanying drawing explanation
The steel plate structure schematic diagram of the flexible PCB that Fig. 1 provides for the utility model embodiment;
The electrical block diagram of the flexible PCB that Fig. 2 provides for the utility model embodiment;
The circuit schematic diagram of the flexible PCB that Fig. 3 provides for the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the utility model, and it is not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, the realization of the present embodiment is described in detail.
As shown in Figure 1 to Figure 3, the ultra-thin formula lithium cell in the present embodiment, comprises battery core (not shown) and flexible PCB 1. Flexible PCB 1 is provided with circuit 15, is provided with multiple pad and circuit structure along circuit 15, is lined with the steel plate 14 that thickness is 0.1mm at the back side of flexible PCB 1.
Circuit structure comprises multiple electronic component, the circuit structure that these electronic components can form in prior art on lithium battery protection board, for ultra-thin formula lithium cell provides protection. Owing to circuit structure is set directly on flexible PCB 1; and without the need to using special PCB carrying; the ultra-thin formula lithium cell in the present embodiment is made to eliminate this structure of protecting sheet; not only eliminate volume and the thickness of protecting sheet itself; and without the need to protecting sheet is welded with flexible PCB 1, the space occupied required for decreasing flexible PCB 1. Flexible PCB 1 is close to the surface of battery core, directly it is electrically connected with outside electronics, reduces overall thickness. In order to the soundness of holding structure, avoiding damaging circuit structure during bending, the steel plate 14 established at flexible PCB 1 back side lining can provide structural rigidity locally, and the local of flexible PCB 1 cannot be bent, and provides protection to circuit structure.
So; adopt the ultra-thin formula lithium cell in the present embodiment; its back dispenses protecting sheet; only remain battery core and flexible PCB 1; can design easily and arrange overall volume; it has thinner thickness compared with lithium cell of the prior art, more adapt on the market various electronics to the needs of power volume.
Circuit structure comprises the electronic components such as MOS pipe 13, resistance 123, electric capacity 122, wherein MOS pipe 13 uses DFN formula to encapsulate, namely bilateral or quad-flat-pack, there is thinner volume, occupied space can be reduced as far as possible, and other electronic components such as electric capacity 122, resistance 123 all adopt SMD installation, its object is also reduced volume of trying one's best, and optimizes the volume of ultra-thin formula lithium cell further.
Contact 11, USB contact 11, the USB place being provided with corresponding USB plug on flexible PCB 1 is provided with pad, can directly be connected with each contact on USB plug, then reaches effect that battery core is connected with outer bilge construction.
Flexible PCB 1 is also provided with B+ contact 124, B-contact 121, P+ contact and P-contact 125, wherein B+ contact 124 is connected with positive pole, the negative pole of battery core respectively with B-contact 121, make to be electrically connected to each other between battery core and flexible PCB 1, P+ contact and P-contact 125 are the positive and negative electrode of circuit structure, are connected with USB contact 11 by circuit 15. P+ contact and B-contact 121 overlap, and share same pad, and B-contact 121 and P-contact 125 are provided with pad separately. The mature technology that above-mentioned each contact structure is in prior art protecting sheet, actual functional capability, connection relation, electricity purposes do not repeat separately for they.
These are only better embodiment of the present utility model, not in order to limit the utility model, all any amendment, equivalent replacement and improvement etc. done within spirit of the present utility model and principle, all should be included within protection domain of the present utility model.
Claims (6)
1. ultra-thin formula lithium cell; for providing electric energy for electronics; comprise battery core; it is characterized in that; also comprise flexible PCB; described flexible PCB is provided with circuit, is provided with for the circuit structure with multiple pad and composition protecting sheet circuit of external electrical connections along described circuit, and described flexible circuit back is also lined with the steel plate that thickness is 0.1mm.
2. ultra-thin formula lithium cell as claimed in claim 1, it is characterised in that, described circuit structure comprises the MOS pipe using the encapsulation of DFN formula.
3. ultra-thin formula lithium cell as claimed in claim 1, it is characterised in that, described circuit structure also comprise SMD be installed on described flexible PCB resistance, electric capacity.
4. ultra-thin formula lithium cell as claimed in claim 1, it is characterised in that, described flexible PCB is provided with the USB contact of corresponding USB plug, and described USB contact place is provided with described pad.
5. ultra-thin formula lithium cell as described in item as arbitrary in Claims 1-4, it is characterised in that, described flexible PCB is provided with can for the B+ contact of described battery core electrical connection, B-contact, and described B+ contact and described B-contact place are provided with described pad.
6. ultra-thin formula lithium cell as claimed in claim 5, it is characterised in that, described flexible PCB is provided with can for the P+ contact of described electronics electrical connection, P-contact, and described P+ contact overlaps with described B+ contact, and described P-contact place is provided with described pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736696.4U CN205282582U (en) | 2015-09-22 | 2015-09-22 | Ultra -thin formula lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736696.4U CN205282582U (en) | 2015-09-22 | 2015-09-22 | Ultra -thin formula lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205282582U true CN205282582U (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520736696.4U Active CN205282582U (en) | 2015-09-22 | 2015-09-22 | Ultra -thin formula lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205282582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511065A (en) * | 2019-01-05 | 2019-03-22 | 深圳市韶音科技有限公司 | Battery component and osteoacusis loudspeaker arrangement |
| WO2020140461A1 (en) * | 2019-01-05 | 2020-07-09 | 深圳市韶音科技有限公司 | Speaker device |
| WO2024046145A1 (en) * | 2022-08-30 | 2024-03-07 | 华为技术有限公司 | Power supply system, battery and electronic device |
-
2015
- 2015-09-22 CN CN201520736696.4U patent/CN205282582U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511065A (en) * | 2019-01-05 | 2019-03-22 | 深圳市韶音科技有限公司 | Battery component and osteoacusis loudspeaker arrangement |
| WO2020140461A1 (en) * | 2019-01-05 | 2020-07-09 | 深圳市韶音科技有限公司 | Speaker device |
| US11336991B2 (en) | 2019-01-05 | 2022-05-17 | Shenzhen Shokz Co., Ltd. | Loudspeaker apparatus |
| US11363365B2 (en) | 2019-01-05 | 2022-06-14 | Shenzhen Shokz Co., Ltd. | Loudspeaker apparatus |
| CN114679656A (en) * | 2019-01-05 | 2022-06-28 | 深圳市韶音科技有限公司 | Battery pack and bone conduction speaker |
| CN114745629A (en) * | 2019-01-05 | 2022-07-12 | 深圳市韶音科技有限公司 | Battery pack and bone conduction speaker |
| US11617033B2 (en) | 2019-01-05 | 2023-03-28 | Shenzhen Shokz Co., Ltd. | Loudspeaker apparatus |
| US11917358B2 (en) | 2019-01-05 | 2024-02-27 | Shenzhen Shokz Co., Ltd. | Loudspeaker apparatus |
| WO2024046145A1 (en) * | 2022-08-30 | 2024-03-07 | 华为技术有限公司 | Power supply system, battery and electronic device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |