CN2916936Y - Dilation-proof battery - Google Patents
Dilation-proof battery Download PDFInfo
- Publication number
- CN2916936Y CN2916936Y CNU2006200138614U CN200620013861U CN2916936Y CN 2916936 Y CN2916936 Y CN 2916936Y CN U2006200138614 U CNU2006200138614 U CN U2006200138614U CN 200620013861 U CN200620013861 U CN 200620013861U CN 2916936 Y CN2916936 Y CN 2916936Y
- Authority
- CN
- China
- Prior art keywords
- film
- battery
- thin film
- switch
- battery core
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to an anti-expansion battery, which comprises a shell body and a battery core and a PCB groupware positioned inside the shell body. A thin film switch is arranged closely next to the battery core inside the shell body; the thin film switch is positioned in the charging and discharging circuit on the PCB groupware. The thin film switch is composed of an upper film, a lower film and an isolation layer in between the upper and lower films and the three one altogether form a film shape; an electric pin extending from the upper and lower films is connected to the corresponding wiring end on the PCB groupware. The upper and lower films are configured with conductive carbon films. The shell body is composed of a bottom shell and a surface cap that buckles with each other. In the utility model, when the battery core expands to certain extent, the thin film switch will function can cut off corresponding charging and discharging circuit, so as to prevent over expansion of the battery core; when the battery core resumes the normative shape, the thin firm switch will break and the battery can be charged and discharge normally, so as to ensure the service life of the battery, prevent explosion and avoid the waste resulted from the directly discarded battery.
Description
Technical field
The utility model relates to a kind of battery, is meant a kind of anti-expansion battery especially.
Background technology
Various rechargeable batteries (as lithium battery) are used widely, and these batteries are taking place can to cause expansion under the situations such as damaged leakage, super-charge super-discharge, high temperature, use the battery that expands easily to cause security incidents such as burning, blast as continuing.For this reason, existing rechargeable battery all can be provided with anti-structure or the device that expands, as Chinese utility model patent ZL200420045599.2 number disclosed a kind of safety-type flexible-packed battery, comprise a flexible-packed battery entity, twine a safety belt on it, this safety belt is provided with an electric conductor that can rupture under the tension force effect, and electric conductor is connected in the charge-discharge circuit of battery entity.The main body of safety belt is a soft plastic band, and electric conductor is fixed on the soft plastic band.This flexible-packed battery is by twining a safety belt, the electric conductor that is connected and can ruptures under the tension force effect with the inside battery circuit is being set on the safety belt, the tension force that makes battery be produced when expanding forms crackle or disconnection with safety belt, thereby electric conductor is ruptured thereupon, cause battery circuit to disconnect and the mechanical cutting charge-discharge circuit, the termination battery uses, and eliminates the danger of battery burning, blast.Yet this mode makes battery also scrap thereupon, can't re-use, and has caused huge waste.
The utility model content
Technical problem to be solved in the utility model is: a kind of anti-expansion battery is provided, and it can effectively prevent cell expansion, thereby avoids various battery performances, the safety problem brought because of cell expansion.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of anti-expansion battery is provided, comprise housing, be installed in the electric core and the PCB assembly of enclosure interior, described enclosure interior is close to electric core and is equiped with a thin film switch, and described thin film switch is arranged in the charge-discharge circuit on the PCB assembly.
Further improvement in the technical proposal is: described thin film switch comprise film, down film and be located at film with following film between separator, the three fits into film like, and go up film reach under film respectively stretch out one and connect on electric pin and the PCB assembly accordingly that terminals link to each other.
Further improvement in the technical proposal is: described upward film, following film are respectively conductive carbon film.
Further improvement in the technical proposal is: described housing comprises drain pan, the cover of mutual fastening.
The beneficial effects of the utility model are: the utility model is when electric core expand into when a certain amount of; thin film switch works and disconnects corresponding charge-discharge circuit; avoided electric core excessive expansion; and after electric core returns to normal appearance; thin film switch can disconnect again; battery can normally discharge and recharge again, thereby reaches the useful life of protection battery and the danger of stopping to explode, the waste of also having avoided direct waste battery to cause.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the decomposing state schematic diagram of the anti-expansion battery of the utility model.
Fig. 2 is the thin film switch schematic diagram of the anti-expansion battery of the utility model.
Fig. 3 a~Fig. 3 d is the structural representation of each assembly of thin film switch.
Fig. 4 is the assembled state outside drawing of the anti-expansion battery of the utility model.
Embodiment
As shown in Figure 1, the utility model provides a kind of anti-expansion battery, comprises housing 1, is installed in electric core 2, PCB assembly 3 and the thin film switch 4 of housing 1 inside.
Wherein, described housing 1 comprises drain pan 11, cover 12, and drain pan 11 can fasten mutually with cover 12 and form complete battery profile, as shown in Figure 4.
Described electric core 2 is an energy storage unit, and 3 of described PCB assemblies link to each other and are provided with outside power connection end with electric core 2 and link to each other with power consumption equipment.Both structures all electric core 2, the PCB assembly 3 with existing battery are identical, seldom give unnecessary details at this.
Shown in Fig. 2 and Fig. 3 a~Fig. 3 c, described thin film switch 4 comprise film 41, down film 42 and be located at film 41 and following film 42 between separator 43.Last film 41, following film 42 are generally the carbon film of conduction, also are provided with some isolation blow points 410 on last film 41 surfaces, isolate the distribution situation of blow point 410 on last film 41 shown in Fig. 3 d.Last film 41, down film 42 and separator 42 utilize glue to fit into film like, and go up film 41 and down film 42 also respectively stretch out one and connect electric pin 411,421 and link to each other with corresponding terminals on the PCB assembly 3.
When battery in use, particularly during boost charge, electricity core 2 very easily expands, 2 in the electric core that expands can be exerted pressure to being close to the thin film switch 4 of being located at electric core 2 surfaces, when electric core 2 expand into when a certain amount of, applied pressure is enough to cause the last film 41 and following film 42 conductings of thin film switch 4, promptly can disconnect corresponding charge-discharge circuit, battery suspends use (can't discharge and recharge), has also avoided electric core 2 to continue excessive expansions; After electric core 2 recovered normal appearance again, 4 of thin film switches were not subjected to the external force effect, its down film 41 be in off-state again with following film 42, charge-discharge circuit then again can operate as normal, battery promptly can carry out charge or discharge.Thereby reach the useful life and the danger of stopping to burn, explode, the waste of also having avoided direct waste battery to cause of protection battery.
Claims (4)
1, a kind of anti-expansion battery comprises housing, is installed in the electric core and the PCB assembly of enclosure interior, and it is characterized in that: described enclosure interior is close to electric core and is equiped with a thin film switch, and described thin film switch is arranged in the charge-discharge circuit on the PCB assembly.
2, anti-expansion battery as claimed in claim 1, it is characterized in that: described thin film switch comprise film, down film and be located at film and following film between separator, the three fits into film like, and go up film and down film respectively stretch out one and connect electric pin and link to each other with corresponding terminals on the PCB assembly.
3, anti-expansion battery as claimed in claim 2 is characterized in that: described upward film, following film are respectively conductive carbon film.
4, anti-expansion battery as claimed in claim 1 or 2, it is characterized in that: described housing comprises drain pan, the cover of mutual fastening.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2006200138614U CN2916936Y (en) | 2006-05-15 | 2006-05-15 | Dilation-proof battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2006200138614U CN2916936Y (en) | 2006-05-15 | 2006-05-15 | Dilation-proof battery |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2916936Y true CN2916936Y (en) | 2007-06-27 |
Family
ID=38187849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2006200138614U Expired - Fee Related CN2916936Y (en) | 2006-05-15 | 2006-05-15 | Dilation-proof battery |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2916936Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105190947A (en) * | 2013-05-08 | 2015-12-23 | 大众汽车瓦尔塔微电池研究有限责任两合公司 | Battery with a safety device which can be reset, and also suitable pole stud for said battery |
-
2006
- 2006-05-15 CN CNU2006200138614U patent/CN2916936Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105190947A (en) * | 2013-05-08 | 2015-12-23 | 大众汽车瓦尔塔微电池研究有限责任两合公司 | Battery with a safety device which can be reset, and also suitable pole stud for said battery |
US10615400B2 (en) | 2013-05-08 | 2020-04-07 | Vw Kraftwerk Gmbh | Battery with a safety device which can be reset, and also suitable pole stud for the battery |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201457272U (en) | Vehicle starting device | |
CN103000957A (en) | Chargeable electric bicycle lithium battery module with function of thermal runaway protection | |
CN201797336U (en) | Lithium ion battery capable of simultaneously outputting high current and low current | |
CN108923511A (en) | Can continuous loop start super capacitance cell emergency starting power supply | |
CN201673952U (en) | Dual safety explosion-proof device of power lithium battery | |
CN102195270A (en) | Over-charge and over-heat alarm protecting structure of soft-shell lithium battery | |
CN107482140B (en) | Battery cover plate of external double-insurance protection device | |
CN2916936Y (en) | Dilation-proof battery | |
CN205657090U (en) | Cell -phone is dedicated can waterproof heat dissipation efficient panel of intelligent outage | |
CN107968456A (en) | Automobile starting power supply based on super capacitor | |
CN204760489U (en) | Prevent electric core structure of explosion on fire and lithium ion battery who has this electricity core structure | |
CN101640294B (en) | Power failure safety structure for over charging of lithium battery with soft shell | |
CN213303921U (en) | Special battery for starting engine | |
CN205104944U (en) | Can start emergent start power of 12V car of high discharge capacity | |
JP2023547006A (en) | Single battery, its manufacturing method and manufacturing system, battery and power usage equipment | |
CN207490043U (en) | Digital product lithium battery | |
CN203013868U (en) | Lithium battery module having charging thermal runaway protection function and used for electric bicycle | |
CN203013875U (en) | Lithium battery module having thermal runway protection function and used for electric bicycle | |
CN202586391U (en) | Charging device of small sealed lead-acid storage battery | |
CN102208677A (en) | Pressure release device and assembly of secondary lithium ion battery and cell cover | |
CN205666267U (en) | Lithium battery pack | |
CN206807120U (en) | A kind of shared bicycle battery pack | |
CN220021544U (en) | Lithium battery charging intelligent protection device | |
CN202068175U (en) | Overcharging and overheating alarming protective structure for lithium battery with soft shell | |
CN210404725U (en) | Lithium battery secondary protection circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20130515 |