CN101777467B - Fluxing resin for temperature fuse and preparation method thereof and preparation method of temperature fuse - Google Patents
Fluxing resin for temperature fuse and preparation method thereof and preparation method of temperature fuse Download PDFInfo
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- CN101777467B CN101777467B CN 200910248046 CN200910248046A CN101777467B CN 101777467 B CN101777467 B CN 101777467B CN 200910248046 CN200910248046 CN 200910248046 CN 200910248046 A CN200910248046 A CN 200910248046A CN 101777467 B CN101777467 B CN 101777467B
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- fluxing resin
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- temperature
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- 239000011347 resin Substances 0.000 title claims abstract description 84
- 229920005989 resin Polymers 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000956 alloy Substances 0.000 claims abstract description 38
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 10
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229960004889 salicylic acid Drugs 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000009969 flowable effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Abstract
The invention relates to fluxing resin for a temperature fuse and a preparation method thereof and a preparation method of the temperature fuse. The fluxing resin is solid at room temperature and can be softened when heated to 40-70 DEG C so as to have liquidity. The fluxing resin comprises 80-90wt% of rosin, 8-18wt% of ethanol and 0.5-3.0wt% of salicylic acid. The preparation method of the temperature fuse comprises the following steps: welding a pair of metal pins on a lower insulating film, leaving space between ends; using low-temperature alloy to weld the two ends of the metal pins together; placing scraps of cut fluxing resin on the low-temperature alloy, heating to soften the scraps of fluxing resin to spread on the surface of the low-temperature alloy; and using an upper insulating film and the lower insulating film to cover the ends of the metal pins, low-temperature alloy and fluxing resin. The method has the advantages as follows: the fluxing resin can promote the low-temperature alloy to fast burn out so as to protect the low-temperature alloy at room temperature; and the scraps of fluxing resin are heated and softened so as to more uniformly cover the surface of the low-temperature alloy without damaging the low-temperature alloy.
Description
Technical field
The preparation of fluxing resin for temperature fuse of the present invention and method for making thereof and temperature fuse relates to the manufacturing of over-temperature protection element, especially practical fluxing resin and method for making thereof in temperature fuse, and the preparation of temperature fuse.
Background technology
In recent years, communications industry was increasingly flourishing, and especially aspect radio communication, it almost is staff one machine that the market of mobile phone has spread to.Popularizing of mobile phone directly driven the especially expansion of battery of mobile phone market scale of mobile phone parts.Take China as example, by the end of on July 31st, 2007, the cellphone subscriber of China reached 50856.4 ten thousand families, than newly-increased 4748.2 ten thousand families at the end of last year.Estimate that 07 year China's mobile phone sales volume will reach 15139.9 ten thousand ones, increase by 26.9% on a year-on-year basis.Be equipped with 1.8 batteries with every mobile phone and calculate, 2007 annual requirements are 27251.82 ten thousand.
The material lithium that lithium battery adopts is active very strong metal, and electrolyte and barrier film all are combustibles.And some characteristics of lithium battery self cause them different from general battery, must carry out necessary control to its charging/discharging voltage electric current, otherwise will cause blast or the consequence such as on fire.
To be baffle add the PTC Combined Protection to the simplest and effective protected mode at present, or baffle adds temperature safety element Combined Protection.Although the PTC thermistor has recoverable advantage, the internal resistance of himself is larger, can affect stand-by time and the cruising time of battery, and the aging phenomenon of its base material after long-term the use can make internal resistance further increase, and situation is further worsened.The more important thing is that the PTC thermistor is compared with temperature fuse, the consistency of protection temperature differs larger, than temperature fuse ± 3 ℃ precision, no small gap is arranged.In addition, along with the battery instructions for use can be born the miniaturization that larger rated current guarantees protection component simultaneously, temperature fuse also shows larger advantage.
Temperature fuse is a kind of reliable over-temperature protection element, can occur between the danger loop being cut off at battery.And make the temperature range of its fusing narrower, obtained increasing application.But along with the more and more miniaturization of size of portable type electronic product, also require the miniaturization of trying one's best of the battery of portable type electronic product, also proposed the requirement of miniaturization to being applied to temperature fuse in the battery, be lower than 1mm such as thickness, width is less than 3.5mm.
Like this little temperature fuse product, the amount of the fluxing resin that it is used also is very micro-, by extrude, the mode such as dropping is difficult to the accurately addition of control fluxing resin.But the addition of fluxing resin can directly have influence on again the size of product and the consistency of product fusing-off temperature, if addition is very few, even the danger of low-temperature alloy fusing occurs helping, and addition is too much, also can badly influence the consistency of product thickness.As will after product processing, measure again the content of its fluxing resin by methods such as optics, although can avoid occurring the problem that temperature fuse is difficult to fuse and variable thickness causes, but the underproof product of fluxing resin content can only be as waste product, thereby causes larger waste.
In the preparation of existing temperature fuse, fluxing resin all is the surface that covers low-temperature alloy (fusible core) by the mode of brushing or dropping.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of fluxing resin for temperature fuse, and this fluxing resin can promote the low-temperature alloy quick fuse, and is at normal temperatures solid-state, and low-temperature alloy is played a protective role.
Another technical problem to be solved by this invention is to provide the preparation method of said temperature fuse with fluxing resin.
An again technical problem to be solved by this invention is to provide the method for the fluxing resin preparation temperature fuse that a kind of utilization makes.
The present invention solves the problems of the technologies described above the technical scheme of taking: a kind of fluxing resin for temperature fuse, wherein, described fluxing resin is solid-state at normal temperatures, it is softening and have a flowability to be heated to 40～70 ℃ of fluxing resins, continuing heating can be to liquid, and this fluxing resin comprises following component by weight percentage:
Rosin 80～90%
Ethanol 8～18%
Salicylic acid 0.5～3.0%.
Concrete, the percentage by weight of rosin can be 80,82,84,86,88 or 90%;
The percentage by weight of ethanol can be 8,10,12,14,16 or 18%;
Salicylic percentage by weight can be 0.5,0.8,1.0,1.2,1.5,1.8,2.0,2.2,2.5,2.8 or 3.0%.
Preparation method for above-mentioned fluxing resin, wherein, rosin, ethanol and salicylic acid are mixed into fluxing resin by prescription, the heating fluxing resin is to flowable state or liquid state, at the metal die surface spraying or brush one deck release agent, the fluxing resin with flowability is injected among the metal die, metal die is put into low temperature environment or naturally cooling, make the sheet fluxing resin of whole piece, from mould, take out, be processed into the fluxing resin small pieces by modes such as scribing or cuttings again.
On the basis of such scheme, the thickness of described sheet fluxing resin is 0.20～0.50mm.
On the basis of such scheme, described fluxing resin small pieces are long 1.5～3.5mm, the rectangular pieces of wide 1.0～3.0mm.
Adopt above-mentioned preparation method to make the method for fluxing resin preparation temperature fuse, temperature fuse is by the pair of metal pin, be welded on the low-temperature alloy between the metal pins end, the fluxing resin on low-temperature alloy surface and upper and lower dielectric film consist of, and comprise the steps:
The first step: the pair of metal pin is welded on the lower dielectric film, metal pins relatively be arranged in a linear and the end between leave spacing;
Second step: be weldingly connected with the both ends of low-temperature alloy with the pair of metal pin;
The 3rd step: the fluxing resin small pieces after low-temperature alloy is placed cutting, heating make the softening but heating-up temperature of fluxing resin small pieces far below the fusing point of low-temperature alloy, and fluxing resin is laid on the low-temperature alloy surface;
The 4th step: upper nonconductive Film and pair of metal pin are welded, and upper nonconductive Film and lower dielectric film make thin temperature fuse in end, low-temperature alloy and the fluxing resin of pair of metal pin is wrapped in.
The invention has the beneficial effects as follows:
This fluxing resin can promote the low-temperature alloy quick fuse, and is at normal temperatures solid-state, and low-temperature alloy is played a protective role.
The present invention adopts and prepares first one whole fluxing resin sheet, mode by cutting is divided into the fluxing resin small pieces of setting size again, the fluxing resin small pieces are placed on low-temperature alloy (fusible core) top, can make fluxing resin cover more equably the surface of low-temperature alloy by thermoplastic mode, and not damage again low-temperature alloy.
Description of drawings
Fig. 1 is the structural representation that temperature fuse of the present invention prepares second step.
Fig. 2 is the structural representation that temperature fuse of the present invention prepared for the 3rd step.
Fig. 3 is the structural representation that temperature fuse of the present invention prepared for the 4th step.
Fig. 4 is sheet fluxing resin cutting schematic diagram
Attached number in the figure explanation
1, dielectric film under the 2-metal pins 3-
4-upper nonconductive Film 5-low-temperature alloy
6-sheet fluxing resin 61-fluxing resin small pieces
Embodiment
Upper nonconductive Film 4 and lower dielectric film 3 are all selected PETG (PET), and thickness is 100～125um, and metal pins 1,2 is selected the zinc-plated nickel material in termination, and the prescription of fluxing resin is common rosin 89%, ethanol, salicylic acid.
By weight percentage rosin 89%, ethanol 10% and salicylic acid 1% are mixed into fluxing resin, the heating fluxing resin is to flowable state or liquid state, at metal die surface spraying or brushing one deck release agent, be injected among the metal die having the mobile fat of fluxing, metal die is put into low temperature environment or naturally cooling, make the sheet fluxing resin 6 of whole piece, thickness is 0.3mm, again by being cut into the rectangle fluxing resin small pieces 61 (seeing Fig. 4) of 2.0 * 1.5mm.
The preparation method of temperature fuse is that structural representation, Fig. 2 that temperature fuse of the present invention prepares second step is that temperature fuse of the present invention prepares the 3rd structural representation that goes on foot and Fig. 3 is that temperature fuse of the present invention prepares shown in the 4th structural representation that goes on foot such as Fig. 1, comprises the steps:
The first step: pair of metal pin 1,2 is welded on the lower dielectric film 3, metal pins relatively be arranged in a linear and the end between leave spacing;
Second step: with low-temperature alloy 5 with pair of metal pin 1,2 both ends be weldingly connected (seeing Fig. 1);
The 3rd step: the fluxing resin small pieces 61 after low-temperature alloy 5 is placed cutting, heating soften fluxing resin small pieces 61 and are laid on low-temperature alloy 5 surfaces (seeing Fig. 2, Fig. 4);
The 4th step: with upper nonconductive Film 4 and pair of metal pin 1, the welding of 2 precise plastics, upper nonconductive Film 4 and lower dielectric film 3 make thin temperature fuse (seeing Fig. 3) in pair of metal pin 1,2 end, low-temperature alloy 5 and fluxing resin are wrapped in.
Other are all identical with embodiment 1, and just the size of fluxing resin small pieces is different, is the rectangle fluxing resin small pieces of 2.4 * 1.8mm.
Other are all identical with embodiment 1, and just the prescription of fluxing resin is different, is common rosin 85.5%, ethanol 14%, salicylic acid 0.5%.
Other are all identical with embodiment 1, and just the prescription of fluxing resin is different, is common rosin 81.5%, ethanol 16%, salicylic acid 2.5%.
Comparative example
Other are all identical with embodiment 1, and just the mode that the applies difference of the 3rd step hydrotropy resin among the preparation method of temperature fuse adopts the mode on low-temperature alloy with fluxing resin heating and dropping.
Table 1
| | Embodiment | 1 | |
|
|
Comparative example |
| Fluxing resin applies mode | Put after the cutting | Put after the cutting | After the cutting | Put after the cutting | Drip after the heating | |
| Product average thickness H (mm) | 0.71 | 0.75 | 0.83 | 0.74 | 0.81 | |
| Consistency of thickness (Hmax-Hmin) | 0.03 | 0.04 | 0.04 | 0.05 | 0.12 |
As shown in Table 1, adopt preparation sheet hydrotropy resin cutting into hydrotropy resin small pieces, hydrotropy resin small pieces are placed on the low-temperature alloy and heating makes it softening, the mode that so applies can make the enough more uniform low-temperature alloy surface that covers of hydrotropy resin, the thickness of product is thinner, and consistency of thickness is better.
Claims (3)
1. the preparation method of a fluxing resin for temperature fuse, it is characterized in that: described fluxing resin is at normal temperatures for solid-state, it is softening and have flowability to be heated to 40～70 ℃ of fluxing resins, and continuing heating can be to liquid, and this fluxing resin is comprised of following component by weight percentage:
Rosin 80～90%
Ethanol 8～18%
Salicylic acid 0.5～3.0%
Rosin, ethanol and salicylic acid are mixed into fluxing resin by prescription, the heating fluxing resin is to flowable state or liquid state, at metal die surface spraying or brushing one deck release agent, be injected among the metal die having mobile fluxing resin, metal die is put into low temperature environment or naturally cooling, make the sheet fluxing resin of whole piece, again by scribing or be cut into the fluxing resin small pieces, wherein, the thickness of described sheet fluxing resin is 0.20～0.50mm.
2. the preparation method of fluxing resin according to claim 1 is characterized in that: described fluxing resin small pieces are long 1.5～3.5mm, the rectangular pieces of wide 1.0～2.0mm.
3. utilize claim 1 or 2 described preparation methods to make the method for fluxing resin preparation temperature fuse, temperature fuse is by the pair of metal pin, be welded on the low-temperature alloy between the metal pins end, the fluxing resin on low-temperature alloy surface and upper and lower dielectric film consist of, and it is characterized in that comprising the steps:
The first step: the pair of metal pin is welded on the lower dielectric film, metal pins relatively be arranged in a linear and the end between leave spacing;
Second step: be weldingly connected with the both ends of low-temperature alloy with the pair of metal pin;
The 3rd step: the fluxing resin small pieces after low-temperature alloy is placed cutting, heating soften the fluxing resin small pieces and are laid on the low-temperature alloy surface;
The 4th step: upper nonconductive Film and pair of metal pin are welded, and upper nonconductive Film and lower dielectric film make thin temperature fuse in end, low-temperature alloy and the fluxing resin of pair of metal pin is wrapped in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910248046 CN101777467B (en) | 2009-12-31 | 2009-12-31 | Fluxing resin for temperature fuse and preparation method thereof and preparation method of temperature fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910248046 CN101777467B (en) | 2009-12-31 | 2009-12-31 | Fluxing resin for temperature fuse and preparation method thereof and preparation method of temperature fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101777467A CN101777467A (en) | 2010-07-14 |
| CN101777467B true CN101777467B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910248046 Active CN101777467B (en) | 2009-12-31 | 2009-12-31 | Fluxing resin for temperature fuse and preparation method thereof and preparation method of temperature fuse |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203568A (en) * | 2013-03-03 | 2013-07-17 | 石盛华 | Rapidly shrinking fusing auxiliary |
| CN115873386A (en) * | 2023-02-20 | 2023-03-31 | 广东金驭科技有限公司 | Composite organic temperature sensing material, preparation method thereof and fuse |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538478A (en) * | 2003-04-03 | 2004-10-20 | ���Ű�˹̩�˹ɷ�����˾ | Temp fuse with current fusing function |
| JP2007207558A (en) * | 2006-02-01 | 2007-08-16 | Nec Schott Components Corp | Fusible alloy type thermal fuse and circuit protection element |
| CN101049662A (en) * | 2007-05-09 | 2007-10-10 | 昆山成利焊锡制造有限公司 | Soldering flux without halogen in use for soft welding wire without lead, and preparation method |
| CN101465252A (en) * | 2008-12-31 | 2009-06-24 | 上海长园维安电子线路保护股份有限公司 | Thin type temperature fuse and fluxing medium therefore |
-
2009
- 2009-12-31 CN CN 200910248046 patent/CN101777467B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538478A (en) * | 2003-04-03 | 2004-10-20 | ���Ű�˹̩�˹ɷ�����˾ | Temp fuse with current fusing function |
| JP2007207558A (en) * | 2006-02-01 | 2007-08-16 | Nec Schott Components Corp | Fusible alloy type thermal fuse and circuit protection element |
| CN101049662A (en) * | 2007-05-09 | 2007-10-10 | 昆山成利焊锡制造有限公司 | Soldering flux without halogen in use for soft welding wire without lead, and preparation method |
| CN101465252A (en) * | 2008-12-31 | 2009-06-24 | 上海长园维安电子线路保护股份有限公司 | Thin type temperature fuse and fluxing medium therefore |
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| Publication number | Publication date |
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| CN101777467A (en) | 2010-07-14 |
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Address after: Seven road 201202 Shanghai Pudong New Area Shiwan No. 1001 Applicant after: Shanghai Changyuan Wayon Circuit Protection Co.,Ltd. Address before: Seven road 201202 Shanghai Pudong New Area Shiwan No. 1001 Applicant before: Shanghai Changyuan Wayon Circuit Protection Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHANGHAI CHANGYUAN WEIAN ELECTRONIC LINE PROTECTION CO., LTD. TO: SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO., LTD. |
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Address after: 200083 806, floor 8, No. 125, Liuying Road, Hongkou District, Shanghai Patentee after: Shanghai Wei'an Electronic Co.,Ltd. Address before: Seven road 201202 Shanghai Pudong New Area Shiwan No. 1001 Patentee before: Shanghai Changyuan Wayon Circuit Protection Co.,Ltd. |
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Address after: Room 806, 8th floor, 125 Liuying Road, Hongkou District, Shanghai 200083 Patentee after: Shanghai Weian Electronics Co.,Ltd. Address before: 806, 8th floor, 125 Liuying Road, Hongkou District, Shanghai 200083 Patentee before: Shanghai Wei'an Electronic Co.,Ltd. |
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