CN101527235B - Overcurrent protective device and manufacture method thereof - Google Patents
Overcurrent protective device and manufacture method thereof Download PDFInfo
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- CN101527235B CN101527235B CN2008100076908A CN200810007690A CN101527235B CN 101527235 B CN101527235 B CN 101527235B CN 2008100076908 A CN2008100076908 A CN 2008100076908A CN 200810007690 A CN200810007690 A CN 200810007690A CN 101527235 B CN101527235 B CN 101527235B
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- overcurrent protective
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Abstract
The invention relates to an overcurrent protective device. The inside of a cladding body is provided with a fuse wire framework unit, and two ends of the fuse wire framework unit parallelly extend to the outside of the cladding body to form a first electrode and a second electrode. In the manufacturing process, through a gas assist injection molding step, at least one gas accommodating space is formed between the fuse wire framework unit and the cladding body, so that heat source generated by the fuse wire framework unit supplied with power cannot dissipate by heat conduction of the cladding body to ensure that the fuse wire framework unit is fused at a high temperature when a specific temperature or current is reached. Therefore, the device achieves the effect of protecting circuits really.
Description
Technical field
The invention provides a kind of overcurrent protective device and manufacture method thereof; especially refer to that a kind of this overcurrent protective device of can possessing really reaches specific currents or specified temp and causes high temperature fusing, with exceed the quata overcurrent protective device and the manufacture method and the device of protection effect of electric current of blocking-up.
Background technology
Fuse is to be used for circuit or electrical equipment facility in the protective circuit, prevents that it is subjected to electric current that moment exceeds the quata or too high voltage and sophisticated electronics is caused damage.Therefore, fuse is indispensable electronic building brick.Traditional fuse unit, for having a coil or fuse material, and with this fuse material seal in the made body of Bohemian glass, ceramic material or other insulating material.In insulated tube, can charge into the filler of inert gas or anti-electric arc.The two ends of body are respectively electric conductor, utilize electric conductor to be connected with pad on the circuit board, make electric current can pass through fuse.When immediate current surpasses predetermined current volume value, the fuse material will because of moment the excessive heat that electric current produced fused by high temperature, and then form and open circuit, excessive electric current is no longer flowed in the circuit, avoid damaging with protective circuit and electric equipment.So the fuse unit of structure because of moment produces great energy, produces high heat when causing blown fuse when big electric current (240A) and big voltage (2250V) use down, and the medium around making expands rapidly, and causes the body explosion; Producing electric arc (arc) simultaneously therefore very easily burns electronic building brick on every side and damages expensive system equipment.
So focus on inhibition electric arc on traditional its structure of fuse unit and the manufacture method, as United States Patent (USP) notification number 6507264,5572181,5923239,6507265,5812046,5596306 etc., but its processing procedure is comparatively complicated more; So occur overcurrent protection assembly again as No. the 200727319th, TaiWan, China patent publication No.; as shown in Figure 1; this overcurrent protection assembly 1 includes: a fuse body 11 and a fuse cladding 12; wherein first, second electrode 13,14 is extended at these fuse body 11 two ends respectively; and this fuse cladding 12 is made up of a macromolecular material; being under the situation of an overcurrent when the overcurrent protection assembly, this fuse cladding 12 can absorb heat that these fuse body 11 fusing are produced and the generation that suppresses electric arc.
Yet; with regard to reality; when producing thermal source when the 11 energising starts of fuse body; this some thermal source can be because the contact action of this fuse body 11 and this fuse cladding 12; and with the dissipation via 12 heat conduction of fuse cladding of this part of heat energy; make the excess electricity of this setting flow when passing through fuse body 11; this fuse body 11 can't reach specific currents or specified temp and high temperature fusing; and then can't reach the blocking-up circuit protection effect of electric current that exceeds the quata, and make the electronic circuit of electric device impaired or burn.
Summary of the invention
Main purpose of the present invention is promptly providing a kind of this overcurrent protective device of can possessing really to reach specific currents or specified temp and cause high temperature fusing, with the exceed the quata overcurrent protective device and the manufacture method thereof of protection effect of electric current of blocking-up.
For reaching above-mentioned purpose; overcurrent protective device of the present invention; mainly in a cladding, be provided with the fuse architectural elements; and these fuse architectural elements two ends also extend to cladding and are formed with first outward; second electrode; in manufacture process; via the gas auxiliary jet formation step; make and be provided with the ccontaining space of at least one gas between this fuse architectural elements and cladding; make the thermal source that this fuse architectural elements energising back produced can dissipation via cladding heat conduction; the high temperature fusing to guarantee to reach specific currents or specified temp, and then the effect of possessing circuit protection really.
Description of drawings
Fig. 1 is for practising the structural representation that overcurrent protection assembly is arranged;
Fig. 2 is the structural representation of overcurrent protective device among the present invention;
Fig. 3 is another structural representation of overcurrent protective device among the present invention;
Fig. 4 is another structural representation of fuse architectural elements among the present invention;
Fig. 5 carries out punching press for lead frame among the present invention in the punch forming unit structural representation;
Fig. 6 is the structural representation after the lead frame punch forming among the present invention;
Fig. 7 is the structural representation of fuse framework element solder between each load bearing unit among the present invention;
Fig. 8 for cladding ejection formation among the present invention in the structural representation of lead frame;
Fig. 9 is the structural representation of gas auxiliary jet formation unit among the present invention;
Figure 10 for lead frame among the present invention in cutting the structural representation that the unit cuts.
[figure number explanation]
Fuse cladding 12 first electrodes 13
Second electrode, 14 overcurrent protective devices 2
Cladding 21 internal layers 211
Outer 212 fuse architectural elements 22
First electrode, 23 second electrodes 24
The heat-insulating material of anti-electric arc 26 punch forming unit 31
Gas auxiliary jet formation unit 32 Jet forming machines 321
Auxiliary ejecting device 322 gases of gas produce machine 323
Air compressor 324 moulds 33
Cut unit 34 lead frames 4
Embodiment
Characteristics of the present invention can be consulted the detailed description of the graphic and embodiment of this case and obtained to be well understood to.
Overcurrent protective device of the present invention and manufacture method thereof; wherein; this overcurrent protective device 2; mainly in a cladding 21, be provided with fuse architectural elements 22 as shown in Figure 2; and these fuse architectural elements 22 length are 10mm and diameter is thick copper cash of 0.13mm or copper alloy wire; plate the silver layer of 10 μ m thickness and the tin layer of 6 μ m thickness in regular turn; and these fuse architectural elements 22 two ends also extend to that cladding 21 is outer to be formed with first; second electrode 23; 24; wherein; 21 of this fuse architectural elements 22 and claddings are provided with at least one space 25; can further be filled with gas 251, for example nitrogen in this space 25; inert gases such as helium.
This cladding 21 can be electric arc resistant material, this electric arc resistant material can be thermoplasticity material or thermosets, wherein, this thermoplasticity material comprises: (a) crystalline polymer material: polyethylene, polypropylene, polyfluorinated ethylene, nylon 12, nylon 6, nylon 66, nylon 6T, nylon 9 T, polybutylene terephthalate (PBT), PETG, plastics steel, PEEK, polymeric liquid crystal copolymer, ethylene copolymer, polyether sulfone, PPSU; (b) amorphism macromolecular material: acrylonitrile-butadiene-styrene ternary copolymerized compound, polystyrene, polycarbonate, poly-sulfonated bodies, poly-diethyl ether sulfonated bodies, polystyrene oxide, phenoxy resin, polyamide, polytrimethylene ether vinegar amine, polytrimethylene ether vinegar amine/silico briquette copolymer, polycarboxylate, allyl resin, polymethacrylates, styrene/propylene honeysuckle trichloroethylene, 4-methylpentene co-polymer, styrene block copolypeptide; And this thermosets can close alkyd resin, carbamide resin, U.S. anti-ware (Melamine) resin, Polyimide resin and silicones etc. for epoxy resin, phenolic resins, insatiable hunger; In addition, this electric arc resistant material also can use and contain hydrated inorganics filled above-mentioned thermoplasticity material or thermosets, and this hydrated inorganic matter, for example contains the aluminium hydroxide of three molecular crystalline water or contains the magnesium hydroxide of two molecular crystalline water; Certainly, this cladding 21 also can be formed with internal layer 211 and outer 212, and as shown in Figure 3, this internal layer 211 can be electric arc resistant material, should then can be general clad material by skin 212, so can reduce the use of electric arc resistant material and further reduces cost.
In the overcurrent protective device 2 of the present invention, utilize electric arc resistant material and by the gas auxiliary jet formation mode, formation is coated on the cladding 21 outside the fuse architectural elements 22, and form the space 25 of 21 of fuse architectural elements 22 and claddings simultaneously, to be under the situation of an overcurrent when overcurrent protective device, this cladding 21 can absorb heat that 22 fusing of this fuse architectural elements are produced and the generation that suppresses electric arc, and can make by this space 25 that this fuse architectural elements 22 and cladding 21 are non-directly to be contacted, make that the thermal source of this fuse architectural elements 22 can the dissipation via cladding 21 heat conduction, guaranteeing that this fuse architectural elements 22 can cause high temperature fusing because of specific currents or specified temp, and then reach the exceed the quata circuit protection effect of electric current of blocking-up; In addition, can further be coated with the heat-insulating material of anti-electric arc 26 outside this fuse architectural elements 22, as shown in Figure 4.
And the manufacturing installation of overcurrent protective device includes at least among the present invention: a punch forming unit, a welding unit, a gas auxiliary jet formation unit, cut the unit and are located at supply unit between above-mentioned each unit, and carry out the following step in regular turn by this manufacturing installation:
Steps A, provide a lead frame;
Step B, carry out the punch forming step, utilize this punch forming unit 31 to make this lead frame 4 be formed with a plurality of load bearing units 41, and the linkage unit 42 that connects each load bearing unit 41, as Fig. 5 and shown in Figure 6;
Step C, a fuse architectural elements 22 is arranged between these load bearing units 41, as shown in Figure 7, fuse architectural elements 22 is fixing with these load bearing units 41 welding by a welding unit;
Step D, carry out the gas auxiliary jet formation step, utilize the gas auxiliary jet formation unit, coat the cladding 21 of this fuse architectural elements 22 and these load bearing units 41 of part with ejection formation, as shown in Figure 8, and 21 of this fuse architectural elements 22 and claddings are provided with the ccontaining space 25 of at least one gas 251, please consult shown in Figure 9 simultaneously, earlier stamping forming lead frame 4 is placed in the mould 33, carry out the gas auxiliary jet formation step again, and this gas auxiliary jet formation unit 32 includes at least: Jet forming machine 321, gas is assisted ejecting device 322, gas produces machine 323 and air compressor 324, wherein, this Jet forming machine 321 can be equipped with electric arc resistant material, make this electric arc resistant material and gas can inject mould 33 simultaneously, certainly, this electric arc resistant material can and contain hydrated inorganics filled thermoplasticity material or thermosets for thermoplasticity material or thermosets in the foregoing description;
Step e, carry out cutting step, as shown in figure 10, cut unit 34 by one and cut in linkage unit 42, as shown in Figure 2, forming overcurrent protective device, and this load bearing unit exposes cladding 21 and forms first, second electrodes 23,24.
In addition, the gas auxiliary jet formation step can be combined with cascode and goes out system among this step D, that is this gas auxiliary jet formation unit includes at least: cascode goes out make-up machine, the auxiliary ejecting device of gas, gas generation machine and air compressor, go out to be equipped with in the make-up machine electric arc resistant material and general material by cascode, make the cladding 21 of moulding be formed with internal layer 211 and outer 212, as shown in Figure 3, this internal layer 211 can be electric arc resistant material, should then can be general clad material by skin 212.
What deserves to be mentioned is that the present invention has compared to habit and has following effect:
1, cladding of the present invention is an electric arc resistant material, and this cladding can absorb heat that the fusing of this fuse architectural elements produced and the generation that suppresses electric arc.
2, thermoplasticity material or the thermosets that can fill for the magnesium hydroxide that contains two molecular crystalline water of electric arc resistant material of the present invention, when must reaching 340 ℃, the cladding temperature just can discharge the crystallization water, be applicable to present no slicker solder system, general no slicker solder fusing point is about 210～230 ℃, and this thermal endurance and arc resistance of magnesium hydroxide that contains two molecular crystalline water is all preferable.
3, be provided with the ccontaining space of at least one gas between this fuse architectural elements and cladding; this fuse architectural elements is directly contacted with cladding is non-; make the thermal source that this fuse architectural elements energising back produced can dissipation via cladding heat conduction; cause high temperature fusing to guarantee to reach specific currents or specified temp, and then the effect of possessing circuit protection really.
Technology contents of the present invention and technical characterstic the sixth of the twelve Earthly Branches disclose as above, yet the personage who is familiar with this technology still may do various replacement and the modifications that do not deviate from this case invention spirit based on announcement of the present invention.Therefore, protection scope of the present invention should be not limited to those disclosed embodiments, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by following claim.
Claims (11)
1. an overcurrent protective device mainly is provided with the fuse architectural elements in a cladding, and these fuse architectural elements two ends extend to cladding and are formed with first, second electrode outward; It is characterized in that:
Be provided with at least one space between this fuse architectural elements and cladding; This cladding is an electric arc resistant material;
This electric arc resistant material is to contain hydrated inorganics filled thermoplasticity material or thermosets;
The hydrated inorganic matter of this filling is the magnesium hydroxide that contains the aluminium hydroxide of three molecular crystalline water or contain two molecular crystalline water;
Further be filled with inert gas in this space;
Gas in this cladding and the space utilizes gas auxiliary jet formation.
2. overcurrent protective device according to claim 1, wherein, this cladding is formed with inside and outside two-layer.
3. overcurrent protective device according to claim 1, wherein, this fuse architectural elements further is coated with the heat-insulating material of anti-electric arc outward.
4. the manufacture method of an overcurrent protective device includes the following step:
A, provide a lead frame;
B, carry out the punch forming step, make this lead frame be formed with a plurality of load bearing units, and the linkage unit that connects each load bearing unit;
C, a fuse architectural elements is arranged between this load bearing unit;
D, carry out the gas auxiliary jet formation step, coat this fuse architectural elements and the cladding of this load bearing unit partly to form, and be provided with the ccontaining space of at least one gas between this fuse architectural elements and cladding;
E, carry out cutting step, cut, to form overcurrent protective device in linkage unit.
5. as the manufacture method of overcurrent protective device as described in the claim 4, wherein, this fuse architectural elements further is coated with the heat-insulating material of anti-electric arc outward.
6. as the manufacture method of overcurrent protective device as described in the claim 4, wherein, this step D is placed in stamping forming lead frame in the mould earlier, carries out the gas auxiliary jet formation step again.
7. as the manufacture method of overcurrent protective device as described in the claim 6, wherein, this gas auxiliary jet formation step is that electric arc resistant material and gas are injected mould simultaneously.
8. as the manufacture method of overcurrent protective device as described in the claim 6, wherein, this gas auxiliary jet formation step is to be combined with cascode to go out system, and it is inside and outside two-layer that the cladding of moulding is formed with, and this internal layer is an electric arc resistant material.
9. as the manufacture method of overcurrent protective device as described in claim 7 or 8, wherein, this electric arc resistant material is to contain hydrated inorganics filled thermoplasticity material or thermosets.
10. as the manufacture method of overcurrent protective device as described in the claim 9, wherein, the hydrated inorganic matter of this filling is the magnesium hydroxide that contains the aluminium hydroxide of three molecular crystalline water or contain two molecular crystalline water.
11. as the manufacture method of overcurrent protective device as described in the claim 4, wherein, this step C makes the fuse architectural elements be connected with this load bearing unit by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100076908A CN101527235B (en) | 2008-03-06 | 2008-03-06 | Overcurrent protective device and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100076908A CN101527235B (en) | 2008-03-06 | 2008-03-06 | Overcurrent protective device and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101527235A CN101527235A (en) | 2009-09-09 |
| CN101527235B true CN101527235B (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100076908A Active CN101527235B (en) | 2008-03-06 | 2008-03-06 | Overcurrent protective device and manufacture method thereof |
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| CN103730301B (en) * | 2013-12-20 | 2016-02-24 | 苏州宏奇锐自动化有限公司 | Fuse |
| CN104037029B (en) * | 2014-06-19 | 2015-09-30 | 国网四川省电力公司成都市新都供电分公司 | A kind of overcurrent protective device |
| CN104227348A (en) * | 2014-08-22 | 2014-12-24 | Aem科技(苏州)股份有限公司 | Method of producing suspended fuse type fuse |
| CN104157518B (en) * | 2014-08-22 | 2016-09-21 | Aem科技(苏州)股份有限公司 | A kind of manufacture method of hollow structure fuse |
| US10992254B2 (en) | 2014-09-09 | 2021-04-27 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| EP3227902B1 (en) * | 2014-12-02 | 2021-08-11 | Eaton Intelligent Power Limited | Power fuse and fabrication methods with enhanced arc mitigation and thermal management |
| CN106560908B (en) * | 2016-06-24 | 2019-12-03 | 南京萨特科技发展有限公司 | Antiknock protector |
| CN106486326B (en) * | 2016-09-14 | 2019-05-03 | 南京萨特科技发展有限公司 | A kind of anti-explosion protector and manufacturing method |
| CN106981406A (en) * | 2017-05-18 | 2017-07-25 | 中国科学院合肥物质科学研究院 | KTX impulse capacitor fuses |
| CN107301930A (en) * | 2017-08-24 | 2017-10-27 | 谭颖 | A kind of contactor of building interior |
| CN107564767B (en) * | 2017-09-20 | 2019-04-12 | 南京理工大学 | A kind of wire battle array switch of achievable multiple switching movement |
| US11063320B2 (en) * | 2019-01-08 | 2021-07-13 | Lg Chem, Ltd. | Terminal busbar |
| CN110323112B (en) * | 2019-07-31 | 2024-03-19 | 厦门大恒科技有限公司 | Gas discharge device capable of bearing current and electric arc |
| CN110867356B (en) * | 2019-11-24 | 2022-01-11 | 安徽明坤电器设备有限公司 | Fuse and installation method thereof |
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| CN2567761Y (en) * | 2002-08-22 | 2003-08-20 | 方耀益 | Suspension-mark type composite high-voltage fuse |
| CN1790586A (en) * | 2005-12-09 | 2006-06-21 | 王季梅 | Vacuum mixing type current-limiting fuse |
| CN1905087A (en) * | 2005-07-27 | 2007-01-31 | 佳邦科技股份有限公司 | Method for mfg. overcurrent protection assembly |
| TW200727319A (en) * | 2006-01-12 | 2007-07-16 | Inpaq Technology Co Ltd | Over-current protector |
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2008
- 2008-03-06 CN CN2008100076908A patent/CN101527235B/en active Active
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|---|---|---|---|---|
| CN2462537Y (en) * | 2001-02-01 | 2001-11-28 | 程俊铭 | Temp fuse able to be processed automatically |
| CN2567761Y (en) * | 2002-08-22 | 2003-08-20 | 方耀益 | Suspension-mark type composite high-voltage fuse |
| CN1905087A (en) * | 2005-07-27 | 2007-01-31 | 佳邦科技股份有限公司 | Method for mfg. overcurrent protection assembly |
| CN1790586A (en) * | 2005-12-09 | 2006-06-21 | 王季梅 | Vacuum mixing type current-limiting fuse |
| TW200727319A (en) * | 2006-01-12 | 2007-07-16 | Inpaq Technology Co Ltd | Over-current protector |
Non-Patent Citations (1)
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| CN101527235A (en) | 2009-09-09 |
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Effective date of registration: 20160902 Address after: 529100 Guangdong Province, Jiangmen City Xinhui District new wealth green electroplating base second 202 third, fourth Patentee after: Jiangmen City Jun Wei Electronic Technology Co., Ltd. Address before: Hsinchu City, Taiwan Chinese Niu Po Road 247 Lane 8 Patentee before: Yan Qiongzhang |
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| CP01 | Change in the name or title of a patent holder |
Address after: 529100 floor 3 and 4, building 202, phase II, new fortune environmental protection electroplating base, yamen Town, Xinhui District, Jiangmen City, Guangdong Province Patentee after: Junwei Electronic Technology Co.,Ltd. Address before: 529100 floor 3 and 4, building 202, phase II, new fortune environmental protection electroplating base, yamen Town, Xinhui District, Jiangmen City, Guangdong Province Patentee before: JIANGMEN JUNWEI ELECTRONIC TECHNOLOGY CO.,LTD. |
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