CN110299503A - The battery cap of external fusing structure - Google Patents
The battery cap of external fusing structure Download PDFInfo
- Publication number
- CN110299503A CN110299503A CN201910691341.0A CN201910691341A CN110299503A CN 110299503 A CN110299503 A CN 110299503A CN 201910691341 A CN201910691341 A CN 201910691341A CN 110299503 A CN110299503 A CN 110299503A
- Authority
- CN
- China
- Prior art keywords
- section
- lamina tecti
- fusing structure
- insurance
- pole
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 claims description 28
- 230000008602 contraction Effects 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention relates to the technical fields of battery cap, disclose the battery cap of external fusing structure, including lamina tecti, the pole being located on lamina tecti and connection sheet；The insurance section that connection sheet has tab section and connect with pole, tab section is threaded through in lamina tecti, the lower end of tab section extends to the lower section of lamina tecti, form the battery core linkage section connecting with battery core, the upper end of tab section extends to the top of lamina tecti, insurance section is placed in the top of lamina tecti, insures and is provided with fusing structure in section；Pass through the external load supplying of pole, electric current flows through tab section and insurance section, and be formed into a loop, insure and fusing structure is set in section, when the electric current on circuit is excessive, fusing structure fuses at first, insurance section is placed in the top of lamina tecti, realizes the external of fusing structure, after fusing structure fusing, the replacement to external fusing structure can be realized by replacement insurance section, it is convenient and efficient.
Description
Technical field
The invention patent relates to the technical fields of battery cap, in particular to the battery cap of external fusing structure.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that " lithium battery ", which is a kind of,.By
It is very active in the chemical characteristic of lithium metal, so that the processing of lithium metal, preservation, use, very high to environmental requirement, with section
The development of technology, present lithium battery have become mainstream.
Traditional lithium battery mould group includes battery core, battery case, lamina tecti and the fusing structure for overload protection, electricity
Core and fusing structure are placed at the inside of battery case, and lamina tecti is fixed on battery case, to cover battery case, make electricity
The sealing of pond interior of shell.
In above-mentioned lithium battery mould group, the fusing structure for overload protection is placed in the inside of battery case, and current lithium
The leakproofness of ion battery be it is indestructible, seal break-off, that is, battery needs are scrapped, therefore can not open lamina tecti, when passing through
The electric current of fusing structure is excessive and when fusing structure being caused to fuse, the fusing structure inside battery case can not be replaced.
Summary of the invention
The purpose of the present invention is to provide the battery caps of external fusing structure, it is intended to solve in the prior art, battery mould
The problem of fusing structure of group can not be replaced.
The invention is realized in this way the battery cap of external fusing structure, including lamina tecti, it is located on the lamina tecti
Pole and connection sheet；The insurance section that the connection sheet has tab section and connect with the pole, the tab section are worn
In the lamina tecti, the lower end of the tab section extends to the lower section of the lamina tecti, forms the electricity connecting with the battery core
Core linkage section, the upper end of the tab section extend to the top of the lamina tecti, and the insurance section is placed in the upper of the lamina tecti
It is square, fusing structure is provided in the insurance section.
Further, the side at the middle part of the insurance section is towards sunken inside, the contraction section that formation width narrows, the contraction
Section forms the fusing structure.
Further, two sides at the middle part of the insurance section are respectively towards sunken inside.
Further, the insurance section has the connecting pin connecting with contraction section, and the connecting pin of the insurance section is embedded in
In the pole.
Further, the side of the pole is formed jagged, and the connecting pin of the insurance section is embedded in the notch.
Further, the connecting pin of the insurance section includes insertion section and extended segment, and the insertion section is embedded in described lack
In mouthful, the extended segment is connect with the contraction section, and is located at the outside of the pole.
Further, the insurance section is in be arranged horizontally in the top of the lamina tecti.
Further, the lamina tecti has upwardly disposed upper surface, the upper table of the insurance section and the lamina tecti
In hanging arrangement between face.
Further, the insurance section has welding ends, and the welding ends has the first welding towards the tab section
Face, the tab section have the second welding surface towards the welding ends, first welding surface and the second welding face paste
Close welding.
Further, it is equipped with mounting hole in the lamina tecti, insulation sleeve is equipped in the mounting hole, is set in the insulation sleeve
There is through-hole, the tab section is threaded through in the through-hole of the insulation sleeve；The upper end of the insulation sleeve extends to the lamina tecti
Top forms upper sealing ring, and the upper sealing ring is looped around the periphery of the through-hole, and is pressed on the upper table of the lamina tecti
Face；The lower end of the insulation sleeve extends to the lower section of the lamina tecti, forms lower sealing ring, and the lower sealing ring is looped around described
The periphery of through-hole, and it is pressed on the lower surface of the lamina tecti.
Compared with prior art, the battery cap of external fusing structure provided by the invention, externally loads confession by pole
Electricity, electric current flows through tab section and insurance section, and is formed into a loop, and insures and fusing structure is arranged in section, when the electric current mistake on circuit
When big, fusing structure fuses at first, and insurance section is placed in the top of lamina tecti, realizes the external of fusing structure, molten in fusing structure
It has no progeny, the replacement to external fusing structure can be realized by replacement insurance section, it is convenient and efficient.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the battery cap of external fusing structure provided by the invention；
Fig. 2 is the cut-away illustration of the battery cap of external fusing structure provided by the invention；
Fig. 3 is the portion the A enlarged diagram of Fig. 2 provided by the invention；
Fig. 4 is the bottom view of the battery cap of external fusing structure provided by the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Realization of the invention is described in detail below in conjunction with specific embodiment.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In description of the invention
In, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right" for based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore describe the use of positional relationship in attached drawing
Language only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term is understood as the case may be.
It is preferred embodiment provided by the invention referring to Fig.1 shown in -4.
The battery cap of external fusing structure provided in this embodiment, can be used in lithium battery, certainly, can also be with
It is used in other batteries, the utilization being not limited in the present embodiment.
The battery cap of external fusing structure, including lamina tecti 11, the pole being located on lamina tecti 11 21 and connection sheet；
The insurance section 23 that connection sheet has tab section 22 and connect with pole 21, tab section 22 are threaded through in lamina tecti 11, tab section 22
Lower end extend to the lower section of lamina tecti 11, form the battery core linkage section connecting with battery core, the upper end of tab section 22 extends to top
The top of cover board 11, insurance section 23 are placed in the top of lamina tecti 11, insure and are provided with fusing structure 231 in section 23.
The battery cap of above-mentioned external fusing structure 231, by the external load supplying of pole 21, electric current flows through tab section
22 and insurance section 23, and be formed into a loop, insure section 23 on be arranged fusing structure 231, when the electric current on circuit is excessive, fusing
Structure 231 fuses at first, and insurance section 23 is placed in the top of lamina tecti 11, the external of fusing structure 231 is realized, in fusing structure
After 231 fusing, the replacement to external fusing structure 231 can be realized by replacement insurance section 23, it is convenient and efficient.
Lamina tecti 11 encloses multiple battery cores for covering battery case, battery case, when lamina tecti 11 covers battery case
When, since insurance section 23 is placed in the top of lamina tecti 11, fusing structure 231 can be placed in the outside of battery case.
The side at the middle part of section 23 is insured towards sunken inside, and the contraction section that formation width narrows, contraction section forms fusing structure
231。
After pole 21 and outer load conduction, circuit conducting forming circuit, electric current flows through insurance section 23, when by contraction section,
Since width narrows, the temperature of fusing structure 231 is increased, and when current is excessive, fusing structure 231 fuses, and is played to circuit
Carry the effect of protection.
Two sides at the middle part of section 23 are insured respectively towards sunken inside, and two sides are simultaneously towards sunken inside, the contraction of formation
Duan Kuandu reaches design requirement, and the fusing structure 231 that contraction section is formed plays the role of overload protection to circuit.
Insurance section 23 has the connecting pin 232 connecting with contraction section, and the connecting pin 232 of insurance section 23 is embedded in pole 21
In, insurance section 23 is embedded in pole 21 by connecting pin 232, realizes the electric connection of insurance section 23 and pole 21.
The side of pole 21 forms jagged 211, and the connecting pin 232 of insurance section 23 is embedded in notch 211, insures section 23
The electric connection of insurance section 23 and pole 21 is realized by the abutting of connecting pin 232 and notch 211.
The surface that connecting pin 232 and notch 211 abut against is that complete face paste is closed, guarantee insurance section 23 connecting pin 232 and
Contact area between the notch 211 of pole 21 is sufficiently large, will not be due to contact area when electric current flows through the contact position of the two
It is too small and calorific value is caused to increase, the connecting pin 232 or pole 21 of insurance section 23 are damaged.
The connecting pin 232 for insuring section 23 includes insertion section and extended segment, and insertion section is embedded in notch 211, extended segment with
Contraction section connection, and it is located at the outside of pole 21.
It is embedded in section and is embedded in notch 211, realize the electric connection of insurance section 23 and pole 21；Since extended segment is located at pole 21
Outside, the upper surface of extended segment do not blocked by pole 21, and after contraction section fusing, replacement insurance section 23 not will receive pole
The obstruction of column 21 keeps replacement operation easier.
Extended segment has the extended surface towards tab section 22, and pole 21 has towards 21 face of pole of tab section 22, extends
Face and 21 face of pole be not concordant, and extended surface is in the left side in 21 face of pole, therefore contraction section is not exposed to notch 211, when
When fusing structure 231 fuses, the fusing of contraction section will not impact pole 21, avoid damage pole 21.
Insurance section 23 is in be arranged horizontally in the top of lamina tecti 11, facilitate insurance section 23 respectively with tab section 22 and pole
21 connections.
Lamina tecti 11 has upwardly disposed upper surface, and insuring is in hanging cloth between section 23 and the upper surface of lamina tecti 11
It sets, when fusing structure 231 fuses, due to being arranged between insurance section 23 and the upper surface of lamina tecti 11 in hanging, fusing structure 231
Lamina tecti 11 will not be touched, avoids damaging lamina tecti 11.
Insuring section 23 has welding ends 233, and welding ends 233 has the first welding surface towards tab section 22, tab section 22
With the second welding surface towards welding ends 233, the first welding surface is bonded welding with the second welding surface.
First welding surface and the second welding face contact, and face paste is closed completely, the contact area of welding ends 233 and tab section 22
Reach maximum, excessive heat is generated when electric current being avoided to flow through welding position, welding position is caused to be damaged.
It is equipped with mounting hole 111 in lamina tecti 11, insulation sleeve 112 is equipped in mounting hole 111, is equipped with through-hole in insulation sleeve 112
113, tab section 22 is threaded through in the through-hole 113 of insulation sleeve 112；The upper end of insulation sleeve 112 extends to the top of lamina tecti 11, shape
At upper sealing ring 114, upper sealing ring 114 is looped around the periphery of through-hole 113, and is pressed on the upper surface of lamina tecti 11；Insulation sleeve
112 lower end extends to the lower section of lamina tecti 11, forms lower sealing ring 115, and lower sealing ring 115 is looped around the periphery of through-hole 113,
And it is pressed on the lower surface of lamina tecti 11.
Tab section 22 is threaded through in the through-hole 113 of insulation sleeve 112, and insulation sleeve 112 is bonded the outer surface of tab section 22, to pole
Ear section 22 plays buffer protection function, while tab section 22 and lamina tecti 11 being separated, and avoids tab section 22 and lamina tecti 11
Between be connected and cause circuit occur short circuit；Upper sealing ring 114 and lower sealing ring 115 seal mounting hole 111 jointly, avoid outside
Sundries and water pollute battery core and damage from mounting hole 111 into battery case.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. the battery cap of external fusing structure, which is characterized in that including lamina tecti, the pole being located on the lamina tecti and
Connection sheet；The insurance section that the connection sheet has tab section and connect with the pole, the tab section are threaded through the top cover
In plate, the lower end of the tab section extends to the lower section of the lamina tecti, forms the battery core linkage section connecting with the battery core, institute
The upper end for stating tab section extends to the top of the lamina tecti, and the insurance section is placed in the top of the lamina tecti, the insurance
Fusing structure is provided in section.
2. the battery cap of external fusing structure as described in claim 1, which is characterized in that the side at the middle part of the insurance section
While the contraction section that formation width narrows, the contraction section forms the fusing structure towards sunken inside.
3. the battery cap of external fusing structure as claimed in claim 2, which is characterized in that the two of the middle part of the insurance section
A side is respectively towards sunken inside.
4. the battery cap of external fusing structure as claimed in claim 3, which is characterized in that the insurance section has and contraction
The connecting pin of the connecting pin of section connection, the insurance section is embedded in the pole.
5. the battery cap of external fusing structure as claimed in claim 4, which is characterized in that the side of the pole is formed with
The connecting pin of notch, the insurance section is embedded in the notch.
6. the battery cap of external fusing structure as claimed in claim 5, which is characterized in that the connecting pin packet of the insurance section
It includes insertion section and extended segment, the insertion section is embedded in the notch, the extended segment is connect with the contraction section, and is located at
The outside of the pole.
7. the battery cap of external fusing structure as claimed in any one of claims 1 to 6, which is characterized in that the insurance section
In the top for being arranged horizontally in the lamina tecti.
8. the battery cap of external fusing structure as claimed in claim 7, which is characterized in that the lamina tecti has cloth upward
The upper surface set, in hanging arrangement between insurance section and the upper surface of the lamina tecti.
9. the battery cap of external fusing structure as claimed in any one of claims 1 to 6, which is characterized in that the insurance section
With welding ends, the welding ends has the first welding surface towards the tab section, and the tab section has towards the weldering
Second welding surface at end is connect, first welding surface is bonded welding with second welding surface.
10. the battery cap of external fusing structure as claimed in any one of claims 1 to 6, which is characterized in that the top cover
It is equipped with mounting hole in plate, insulation sleeve is equipped in the mounting hole, is equipped with through-hole in the insulation sleeve, the tab section is threaded through institute
It states in the through-hole of insulation sleeve；The upper end of the insulation sleeve extends to the top of the lamina tecti, forms upper sealing ring, described close
Seal ring is looped around the periphery of the through-hole, and is pressed on the upper surface of the lamina tecti；The lower end of the insulation sleeve extends to institute
The lower section of lamina tecti is stated, forms lower sealing ring, the lower sealing ring is looped around the periphery of the through-hole, and is pressed on the top cover
The lower surface of plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691341.0A CN110299503B (en) | 2019-07-29 | 2019-07-29 | Battery top cover with external fusing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691341.0A CN110299503B (en) | 2019-07-29 | 2019-07-29 | Battery top cover with external fusing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110299503A true CN110299503A (en) | 2019-10-01 |
| CN110299503B CN110299503B (en) | 2024-05-14 |
Family
ID=68032036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910691341.0A Active CN110299503B (en) | 2019-07-29 | 2019-07-29 | Battery top cover with external fusing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110299503B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224427A (en) * | 2020-01-21 | 2021-08-06 | 常州微宙电子科技有限公司 | PCB type battery cover plate, preparation method thereof and battery with PCB type battery cover plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555451A (en) * | 1985-01-29 | 1985-11-26 | Pines Of America, Inc. | Storage battery with built-in fuse |
| CN206947390U (en) * | 2017-07-24 | 2018-01-30 | 长沙锂安能电子科技有限公司 | Battery explosion-proof cover plate assembly with external safety protection device easy to replace |
| CN108470858A (en) * | 2018-05-16 | 2018-08-31 | 深圳市凯中精密技术股份有限公司 | A kind of battery cover board and battery |
| CN209029463U (en) * | 2018-10-12 | 2019-06-25 | 江苏塔菲尔新能源科技股份有限公司 | Power battery connection sheet and power battery |
| CN210040385U (en) * | 2019-07-29 | 2020-02-07 | 常州瑞德丰精密技术有限公司 | Battery top cap of external fusing structure |
-
2019
- 2019-07-29 CN CN201910691341.0A patent/CN110299503B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555451A (en) * | 1985-01-29 | 1985-11-26 | Pines Of America, Inc. | Storage battery with built-in fuse |
| CN206947390U (en) * | 2017-07-24 | 2018-01-30 | 长沙锂安能电子科技有限公司 | Battery explosion-proof cover plate assembly with external safety protection device easy to replace |
| CN108470858A (en) * | 2018-05-16 | 2018-08-31 | 深圳市凯中精密技术股份有限公司 | A kind of battery cover board and battery |
| CN209029463U (en) * | 2018-10-12 | 2019-06-25 | 江苏塔菲尔新能源科技股份有限公司 | Power battery connection sheet and power battery |
| CN210040385U (en) * | 2019-07-29 | 2020-02-07 | 常州瑞德丰精密技术有限公司 | Battery top cap of external fusing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224427A (en) * | 2020-01-21 | 2021-08-06 | 常州微宙电子科技有限公司 | PCB type battery cover plate, preparation method thereof and battery with PCB type battery cover plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110299503B (en) | 2024-05-14 |
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