CN102629537B - A kind of fuse and composite sheet - Google Patents
A kind of fuse and composite sheet Download PDFInfo
- Publication number
- CN102629537B CN102629537B CN201210104266.1A CN201210104266A CN102629537B CN 102629537 B CN102629537 B CN 102629537B CN 201210104266 A CN201210104266 A CN 201210104266A CN 102629537 B CN102629537 B CN 102629537B
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- Prior art keywords
- fuse
- hole
- composite sheet
- bonding pad
- radiating fins
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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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- Fuses (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a kind of fuse and composite sheet, described fuse is provided with fusing hole; Described composite sheet comprises the bonding pad and conductive radiating fins that heat is combined with each other; Described conductive radiating fins offers through hole; Described bonding pad offers the through hole corresponding with the through hole on conductive radiating fins; The both sides of the through hole on described bonding pad extend a fuse respectively, and described fuse extends in described through hole; Described fuse is provided with and makes fuse be easy to the fusing hole fused.Fuse of the present invention is easy to fusing because of the existence in the hole that fuses.When electric current is excessive exceed design range time, the fuse in composite sheet of the present invention can fuse, cut-off loop, ensures battery use safety, decreases the damage of battery and other devices simultaneously.
Description
Technical field
The invention belongs to cell art, relate to a kind of battery battery core brace, be specifically related to a kind of fuse and composite sheet.
Background technology
One of key technology of Development of Electric Vehicles is electrokinetic cell.At present, the electrokinetic cell of electric automobile is all generally adopt a large amount of to form powerful lithium battery group by the mode of series and parallel, to meet the power demand of electric automobile by tens of joint single lithium battery even up to a hundred.For the series and parallel between single lithium battery battery core, full nickel sheet or full copper sheet is normally adopted to connect.Adopt full nickel sheet to connect, although solderability is good, cost is high; Adopt full copper sheet to connect, although conduct electricity very well, cost is low, often there is the solid problem of not prison welding between itself and battery core pole.Therefore the Combination application of existing electrokinetic cell generally all adopts copper nickel compound piece.
As shown in Figure 1, existing a kind of copper nickel composite joint sheet for connecting between lithium battery electric core is made up of copper-base sheet c and nickel pole piece a, described nickel pole piece is at least offered an exhausting hole b; Copper-base sheet offers the through hole corresponding with the through hole b on nickel pole piece, and each through hole side on nickel pole piece respectively disjunctor one fritter extends in the lug d in through hole b; Copper-base sheet is relative with the through hole of nickel pole piece, is welded as a whole.This copper nickel composite joint sheet had both been easy to realize each single lithium battery battery core pole of series and parallel by the connection between this lug and conductive radiating fins, reduce the consumption of bonding pad, reduce production cost, improve the conductance of brace simultaneously, reduce the internal resistance of brace, also make series and parallel assembling between single lithium battery have what regularity of fastness.
But electrokinetic cell when in use electric current is all larger, so the situation of overcurrent can be there is.If can not effectively take measures to have security risk when overcurrent.Current solution adds fuse or inside battery design insurance device at external circuit.These two kinds of methods have weak point, and add fuse at external circuit and can not solve and cross flow problem between single Battery pack, the process structure adding fuse at internal circuit is complicated, is unfavorable for battery maintenance and reuses.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of fuse and composite sheet, and this fuse has overcurrent fuse function, and this composite sheet has overcurrent defencive function.
For achieving the above object and other relevant objects, the invention provides a kind of fuse and composite sheet.
A kind of fuse, described fuse is provided with fusing hole.
As a preferred embodiment of the present invention, the flat shape in described fusing hole is square, circular, rhombus, semicircle, ellipse, polygon or irregular shape.
As another kind of preferred version of the present invention, described fusing hole is the through hole of through fuse.
As another preferred version of the present invention, described fusing hole is the pit hole of non-through fuse.
As another preferred version of the present invention, to be width be the structure of described fuse that the entity of 3 to 5 millimeters is banded.
As another preferred version of the present invention, the structure of described fuse is the grid band shape of 3 to 5 millimeters.
A kind of composite sheet, described composite sheet comprises the bonding pad and conductive radiating fins that heat is combined with each other; Described conductive radiating fins offers through hole; Described bonding pad offers the through hole corresponding with the through hole on conductive radiating fins; The both sides of the through hole on described bonding pad extend a fuse respectively, and described fuse extends in described through hole; Described fuse is provided with and makes fuse be easy to the fusing hole fused.
As a preferred embodiment of the present invention, the flat shape in described fusing hole is square, circular, rhombus, semicircle, ellipse, polygon or irregular shape.
As another kind of preferred version of the present invention, described fusing hole is the through hole of through fuse or the pit hole of non-through fuse.
As another preferred version of the present invention, the structure of described fuse to be width the be entity of 3 to 5 millimeters is banded or grid is banded.
As another preferred version of the present invention, described bonding pad is nickel sheet, lead flake, tin sheet or terne metal sheet; Described conductive radiating fins is gold plaque, silver strip, copper sheet, iron plate or aluminium flake.
As mentioned above, fuse of the present invention and composite sheet, have following beneficial effect:
Fuse of the present invention is easy to fusing because of the existence in the hole that fuses.
When electric current is excessive exceed design range time, the fuse in composite sheet of the present invention can fuse, cut-off loop, ensures battery use safety, decreases the damage of battery and other devices simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the copper nickel composite joint sheet for connecting between lithium battery electric core.
Fig. 2 is a kind of structural representation of the fuse described in embodiment one
Fig. 3 is the structural representation of the composite sheet described in embodiment two.
Fig. 4 is the structural representation of the conductive radiating fins in the composite sheet described in embodiment two.
Fig. 5 is the structural representation of the bonding pad in the composite sheet described in embodiment two.
Element numbers explanation
1 ' fuse;
11 ' fusing hole;
1, bonding pad;
11, through hole;
12, fuse;
121, fuse hole;
2, conductive radiating fins;
21, through hole;
3, battery cover top;
4, pad.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to accompanying drawing.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Embodiment one
The present embodiment provides a kind of fuse, and as shown in Figure 2 a and 2 b, described fuse 1 ' is provided with fusing hole 11 '.
The flat shape in described fusing hole 11 ' can be square, circular, the arbitrary shape such as rhombus, semicircle, ellipse, polygon or irregular shape.The protection range of fuse of the present invention is not limited to the shape in several fusing holes that the present embodiment is enumerated, and every hole that can realize making fuse be easy to fuse all is included in protection scope of the present invention.
Described fusing hole is the through hole of through fuse or the pit hole of non-through fuse.The protection range of fuse of the present invention is also not limited to the fusing hole that the present embodiment enumerates and whether runs through fuse, and equally, every fusing hole that can realize making fuse be easy to fuse all is included in protection scope of the present invention.
The structure of described fuse to be width the be entity band shape (shown in Fig. 2 a) of 3 to 5 millimeters or grid band shape (shown in Fig. 2 b).The protection range of fuse of the present invention is not limited to the entity that the present embodiment enumerates or latticed, and that is, every shape that can realize making fuse be easy to fuse all is included in protection scope of the present invention.
In addition, by enlightenment of the present invention, the shape of fuse can be banded, and also can be column, its concrete shape can design according to actual needs.No matter fuse why shape, as long as the defencive function being easy to fuse that can possess fuse, it all belongs to protection scope of the present invention.
Fuse of the present invention is easy to fusing, is highly suitable for playing overcurrent protection in the connection of battery pack.
Embodiment two
The present embodiment provides a kind of composite sheet, and as shown in Fig. 3 to 5, described composite sheet comprises the bonding pad 1 and conductive radiating fins 2 that heat is combined with each other; Described conductive radiating fins 2 offers through hole 21; Described bonding pad 1 offers the through hole 11 corresponding with the through hole 21 on conductive radiating fins 2; The both sides of the through hole 11 on described bonding pad 1 extend a fuse 12 respectively, and described fuse 12 extends in through hole 11; Described fuse 12 is provided with and makes fuse be easy to the fusing hole 121 fused.Described fuse 12 welds with battery cover top 3, and pad 4 is positioned at fuse 12 apart from through hole 11 edge recently but do not connect summit.
Bonding pad in described composite sheet is nickel sheet, lead flake, tin sheet or terne metal sheet; Described conductive radiating fins is gold plaque, silver strip, copper sheet, iron plate or aluminium flake.The material that the protection range of composite sheet of the present invention is not limited to described bonding pad is not limited to nickel, lead, tin or terne metal; The material of described conductive radiating fins is also not limited to the metal materials such as gold, silver, copper, iron, aluminium, and it can be any material that can realize the linkage function of this composite sheet.
The flat shape in described fusing hole 121 can be square, circular, the arbitrary shape such as rhombus, semicircle, ellipse, polygon or irregular shape.Described fusing hole can be the through hole of through fuse or the pit hole of non-through fuse.The structure of described fuse 12 to be width the be entity of 3 to 5 millimeters is banded or grid is banded.The protection range of composite sheet of the present invention is not limited to structure and the shape in described fusing hole, is also not limited to the shape of fuse, and it can cross arbitrarily for band shape, column etc. the shape realizing this composite sheet function.
Cutter die stamping or shearing are carried out to bonding pad exposed portion in composite sheet, the shape of being convenient to most process can being formed, leaving the fuse playing conductor effect as connecting battery and composite sheet.Wherein the width of fuse can design, as requested generally between 3-5mm.By the requirement of power brick different performance, small area analysis energy type operating mode can be designed as the narrow fuse of width, or reduces fuse quantity; Big current power-type operating mode then can design the wide fuse of width, or increases fuse quantity.Can also by offer on fuse fusing hole control fuse the size of current of safety effect that rises.If the electric current playing safety effect is large, then the aperture in the hole that fuses is little; Otherwise if the electric current playing safety effect is little, then the aperture in the hole that fuses is large.
Copper sheet in composite sheet of the present invention is to conduct electricity and dispelling the heat, and nickel sheet is convenient to welding.Along with the technology relative maturity of the hot compound of copper nickel and processing, composite sheet ratio is easier to realize.Through hole on copper sheet can be circular, and manhole can corresponding circle cylindricality electrokinetic cell, if the battery of other shapes can change the shape of through hole.Can determine according to the size of the operating current of design with the distribution of the fuse of welding battery part and width.The effect in the fusing hole above fuse regulates size of current.Fuse is equivalent to fuse, and itself and composite sheet are made of one, and simplify operation, and the cost of batch also can reduce.
Described composite sheet can by the battery arranged in parallel of design.Conductive radiating fins is prepared the through hole that position is corresponding, and the aperture of through hole can consider that the current-carrying size of lotus and cost control are greater than battery diameter.In composite sheet, conductive radiating fins and the hot compound of bonding pad, define good ohmic contact.
Then and welding battery the present invention mainly processes special shape in the nickel sheet part of composite sheet.When electric current is excessive exceed design range time, fuse portion can fuse, cut-off loop, ensures battery use safety.Also the damage of battery and other devices can be reduced.Composite sheet of the present invention is welded on function battery two ends with overcurrent protection.
So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (5)
1. a composite sheet, is characterized in that: described composite sheet comprises the bonding pad and conductive radiating fins that heat is combined with each other; Described conductive radiating fins offers through hole; Described bonding pad offers the through hole corresponding with the through hole on conductive radiating fins; The both sides of the through hole on described bonding pad extend a fuse respectively, and described fuse extends in described through hole; Described fuse is provided with and makes fuse be easy to the fusing hole fused, described fuse and battery cover welded top;
Composite sheet being welded on battery two ends makes described composite sheet have overcurrent defencive function.
2. composite sheet according to claim 1, is characterized in that: the flat shape in described fusing hole is circular, semicircle, ellipse, polygon or irregular shape.
3. composite sheet according to claim 2, is characterized in that: described fusing hole is the through hole of through fuse or the pit hole of non-through fuse.
4. composite sheet according to claim 1, is characterized in that: the structure of described fuse to be width the be entity of 3 to 5 millimeters is banded or grid is banded.
5. composite sheet according to claim 1, is characterized in that: described bonding pad is nickel sheet, lead flake, tin sheet or terne metal sheet; Described conductive radiating fins is gold plaque, silver strip, copper sheet, iron plate or aluminium flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104266.1A CN102629537B (en) | 2012-04-10 | 2012-04-10 | A kind of fuse and composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104266.1A CN102629537B (en) | 2012-04-10 | 2012-04-10 | A kind of fuse and composite sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102629537A CN102629537A (en) | 2012-08-08 |
| CN102629537B true CN102629537B (en) | 2016-02-17 |
Family
ID=46587776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210104266.1A Active CN102629537B (en) | 2012-04-10 | 2012-04-10 | A kind of fuse and composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102629537B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550508A (en) * | 2018-06-21 | 2018-09-18 | 东莞市贝特电子科技股份有限公司 | A kind of high-performance fuse and its workflow |
| CN109494074B (en) * | 2018-11-06 | 2021-01-29 | 安徽赛福电子有限公司 | Overload-proof capacitor cover plate assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246563A (en) * | 1977-05-28 | 1981-01-20 | Aktieselkabet Laur. Knudsen Nordisk Electricitets | Electric safety fuse |
| CN1264913A (en) * | 1999-02-26 | 2000-08-30 | 三洋电机株式会社 | Fuse wire and combined battery set with fuse wire |
| JP2002203528A (en) * | 2000-12-28 | 2002-07-19 | Sanyo Electric Co Ltd | Battery pack |
| CN102332373A (en) * | 2010-12-31 | 2012-01-25 | 东莞新能源科技有限公司 | Fuse and lithium ion secondary battery with same |
| CN202772092U (en) * | 2012-04-10 | 2013-03-06 | 协鑫动力新材料（盐城）有限公司 | Fuses and clad sheet |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2966310B2 (en) * | 1994-04-27 | 1999-10-25 | 日本碍子株式会社 | Sodium-sulfur battery |
| JPH11204005A (en) * | 1998-01-09 | 1999-07-30 | Uchihashi Estec Co Ltd | Thermal fuse and inside-mounted structure of thermal fuse in battery |
| CN201681991U (en) * | 2010-04-26 | 2010-12-22 | 宜昌欧赛科技有限公司 | Battery and connecting piece thereof |
| JP5512435B2 (en) * | 2010-07-20 | 2014-06-04 | 三洋電機株式会社 | Battery pack |
-
2012
- 2012-04-10 CN CN201210104266.1A patent/CN102629537B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246563A (en) * | 1977-05-28 | 1981-01-20 | Aktieselkabet Laur. Knudsen Nordisk Electricitets | Electric safety fuse |
| CN1264913A (en) * | 1999-02-26 | 2000-08-30 | 三洋电机株式会社 | Fuse wire and combined battery set with fuse wire |
| JP2002203528A (en) * | 2000-12-28 | 2002-07-19 | Sanyo Electric Co Ltd | Battery pack |
| CN102332373A (en) * | 2010-12-31 | 2012-01-25 | 东莞新能源科技有限公司 | Fuse and lithium ion secondary battery with same |
| CN202772092U (en) * | 2012-04-10 | 2013-03-06 | 协鑫动力新材料（盐城）有限公司 | Fuses and clad sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102629537A (en) | 2012-08-08 |
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Effective date of registration: 20161212 Address after: 215000 Suzhou Industrial Park, Jiangsu new road, No. two, southeast corner of the layer of 28 Patentee after: Suzhou GCL Energy Technology Development Co Ltd Address before: 224007 Yancheng City Economic Development Zone Yancheng economic and Technological Development Zone, Songjiang Road, room 18, No. 823, room Patentee before: New materials (Yancheng) Co., Ltd. GCL power |