CN100561611C - Be provided with the piezo-resistance of alloy-type temperature fuse - Google Patents
Be provided with the piezo-resistance of alloy-type temperature fuse Download PDFInfo
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- CN100561611C CN100561611C CNB2005100446615A CN200510044661A CN100561611C CN 100561611 C CN100561611 C CN 100561611C CN B2005100446615 A CNB2005100446615 A CN B2005100446615A CN 200510044661 A CN200510044661 A CN 200510044661A CN 100561611 C CN100561611 C CN 100561611C
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Abstract
The present invention relates to a kind of piezo-resistance that has alloy-type temperature fuse, be specially adapted to Zinc-oxide piezoresistor, and be used for overvoltage protection.The present invention contains piezo-resistance, it is characterized in that: piezo-resistance and alloy-type temperature fuse are located in the airtight cavity volume and the surface next-door neighbour, and its pin extends outside the cavity volume; The alloy flux is housed in the cavity volume.The present invention can also finish like this: contain piezo-resistance, it is characterized in that: piezo-resistance and alloy-type temperature fuse are located in the airtight cavity volume, and its pin extends outside the cavity volume; Alloy-type temperature fuse is located in another little cavity volume, and the alloy flux is housed in the little cavity volume.The present invention makes one with piezo-resistance and Thermal Cutoffs, and is easy for installation simple during use.And the effect of alloy flux is arranged, and thermal response speed is fast.The present invention can select different melting points for use according to different needs, and the alloy of different size cooperates the piezo-resistance of different through-current capacities, makes the piezo-resistance of all size, and the scope of application is very wide.
Description
Technical field
The present invention relates to a kind of piezo-resistance that has alloy-type temperature fuse, be specially adapted to Zinc-oxide piezoresistor, and be used for overvoltage protection.
Background technology
Zinc oxide varistor is widely used as the overvoltage protection and the surge absorbing element of circuit, equipment and components and parts with its superior conductive characteristic.No matter varistor is applied in power circuit or electronic circuit; if various types of overvoltage frequently occur; then varistor will discharge surge energy to suppress the overvoltage amplitude and to absorb by frequent movement; protection electric equipment and components and parts, this will certainly cause the performance degradation and even the inefficacy of varistor.The piezo-resistance of existing band overvoltage protection or complex structure are as fast formula thermal release device of traditional mould and Chinese patent 02222055.0; The too slow or more weak easy inefficacy of tolerance high current impulse withstanding capability as the response speed of the Temperature protection of overtemperature protection structure; as traditional spring-piece type thermal release device; outer by organic substance type Thermal Cutoffs, outward by alloy-type temperature fuse and Chinese patent 00237913.9.
Summary of the invention
The present invention is intended to propose a kind of piezo-resistance that has alloy-type temperature fuse, and both are located at one, and it is simple and compact for structure, and reaction speed is fast, can make the piezo-resistance of all size as required, and is applied widely.
The present invention finishes like this: be provided with the piezo-resistance of alloy-type temperature fuse, contain piezo-resistance, it is characterized in that: piezo-resistance and alloy-type temperature fuse are located in the airtight cavity volume and the surface next-door neighbour, and its pin extends outside the cavity volume; The alloy flux is housed in the cavity volume.
For ease of assembling, it is one to have the cavity volume of opening that the present invention preferentially adopts described airtight cavity volume, and its opening part is provided with the epoxy sealing material; Described alloy-type temperature fuse is an alloy silk, and its two ends are provided with pin.
The present invention can also finish like this: be provided with the piezo-resistance of alloy-type temperature fuse, contain piezo-resistance, it is characterized in that: piezo-resistance and alloy-type temperature fuse are located in the airtight cavity volume, and its pin extends outside the cavity volume; Alloy-type temperature fuse is located in another little cavity volume, and the alloy flux is housed in the little cavity volume.
For ease of assembling, it is one to have the cavity volume of opening that the present invention preferentially adopts described airtight cavity volume, and its opening part is provided with the epoxy sealing material; Described alloy-type temperature fuse is an alloy silk, and its two ends are provided with pin.
Alloy-type temperature fuse is located in another little cavity volume, and little cavity volume adopts pottery or the high insulating material of other high heat conduction to make, and can save material and prevent that flux from disperseing, and the arc extinguishing function is arranged, and also can improve insulation property.
The present invention can make multiple constructed products according to the circuit needs:
Two pins: a pin of piezo-resistance is connected with a pin of alloy-type temperature fuse and is enclosed within the cavity volume; Another pin of piezo-resistance and alloy-type temperature fuse extends outside the cavity volume respectively.
Three pins: two pins of piezo-resistance all extend outside the cavity volume, and one of them pin is connected with a pin of alloy-type temperature fuse; Another pin of alloy-type temperature fuse extends outside the cavity volume.
Four pins: two pins of piezo-resistance and alloy-type temperature fuse all extend outside the cavity volume, do not connect mutually between each pin.
Piezo-resistance series connection: be provided with two piezo-resistances in the cavity volume; Two pins of alloy-type temperature fuse are connected with one of them pin of two piezo-resistances respectively, and are enclosed within the cavity volume; Two piezo-resistances form series connection, and their another pin extends outside the cavity volume respectively.
The piezo-resistance parallel connection: be provided with two piezo-resistances in the cavity volume, after their one of them pin is connected to each other, be connected with a pin of alloy-type temperature fuse again, two piezo-resistances form parallel connection; In addition two pins of piezo-resistance and another pin of alloy-type temperature fuse extend outside the cavity volume respectively.
But warning function: the described alloy-type temperature fuse fusing-off temperature of also connecting is identical, and can change alarm temperature fuse normally closed or that often opened by normally closed commentaries on classics by often opening.
Design also can be made into other constructed products according to the present invention, as: plural piezo-resistance serial or parallel connection etc.
The present invention also can be made into to possess the standby piezo-resistance of startup, be provided with one on alloy-type temperature fuse next door and have certain operating temperature characteristic and by often driving the switching device shifter that changes normally closed, parallel connection in the line after switching device shifter was connected in series another standby piezo-resistance, thereby play when the temperature of the piezo-resistance under the user mode arrives assigned temperature, start second piezo-resistance and enter operating state; Principle can realize multistage standby piezo-resistance according to this.Such product is specially adapted in the circuit of railroad and anti-thunderbolt.
The present invention makes one with piezo-resistance and Thermal Cutoffs, easy for installation simple during use. and the effect of alloy flux is arranged, can make the alloy of fusing shrink balling-up to two pins rapidly, thermal response speed is fast. and the present invention can be according to different needs, select different melting points for use, the alloy of different size cooperates the piezo-resistance of different through-current capacities, make the piezo-resistance of all size, the scope of application is very wide.
Description of drawings
Fig. 1 is schematic diagram before the blown fuse of the present invention,
Fig. 2 is schematic diagram after the blown fuse of the present invention,
Fig. 3 is two pin embodiment of the present invention schematic diagram,
Fig. 4 is three pin embodiment of the present invention schematic diagram,
Fig. 5 is four pin embodiment of the present invention schematic diagram,
Fig. 6 is piezo-resistance series connection embodiment schematic diagram of the present invention,
Fig. 7 is piezo-resistance of the present invention embodiment schematic diagram in parallel,
Fig. 8 possesses warning function embodiment schematic diagram for the present invention,
Fig. 9 has the Application Example circuit diagram that starts standby piezo-resistance for the present invention possesses.
Wherein: 1. cavity volume; 2. piezo-resistance; 3. piezo-resistance pin; 4. alloy-type temperature fuse; 5. fuse pin; 6. epoxy sealing material; 7. alloy flux, 8. little cavity volume is 9. often opened and is changeed normally closed or normally closed commentaries on classics open type alarm temperature fuse, 10. often opens and changes normally closed switching device shifter.
Embodiment
Embodiment 1:
As depicted in figs. 1 and 2, with piezo-resistance 2 and alloy-type temperature fuse 4 surface next-door neighbours, be installed in the cavity volume 1, in its slit and the cavity volume 1 alloy flux 7 is housed, with the opening sealing of epoxy sealing material 6 with cavity volume 1, piezo-resistance pin 3 and fuse pin 5 are located at outside the opening of cavity volume 1 again.When piezo-resistance 2 causes adstante febre because of various factors, heat can see through its top layer and pass to all round alloy flux 7, again by alloy flux 7 with heat transferred alloy fuse 4, until be heated back fusing and under the effect of alloy flux 7, shrink (as Fig. 2) to two fuse pins 5 rapidly of alloy, thereby cut-out circuit, the piezo-resistance 2 that is about to worsen is broken away from from circuit, and thermal response speed is very fast.It is simple and compact for structure.
Embodiment 2:
As Fig. 3 is two pin embodiment of the present invention schematic diagram, and a pin 3 of piezo-resistance 2 is connected with a pin 5 of alloy-type temperature fuse 4 and is enclosed within the cavity volume; Another pin of piezo-resistance 2 and alloy-type temperature fuse 4 extends outside the cavity volume respectively.
Embodiment 3:
As Fig. 4 is three pin embodiment of the present invention schematic diagram, and two pins 3 of piezo-resistance 2 all extend outside the cavity volume, and one of them pin 3 is connected with a pin 5 of alloy-type temperature fuse; Another pin 5 of alloy-type temperature fuse 4 extends outside the cavity volume.
Embodiment 4:
As Fig. 5 is four pin embodiment of the present invention schematic diagram, and two pins of piezo-resistance 2 and alloy-type temperature fuse 4 all extend outside the cavity volume, do not connect mutually between each pin.
Embodiment 5:
For piezo-resistance series connection embodiment schematic diagram of the present invention, be provided with two piezo-resistances 2 as Fig. 6 in the cavity volume; Two pins 5 of alloy-type temperature fuse 4 are connected with one of them pin 3 of two piezo-resistances respectively, and are enclosed within the cavity volume; Two piezo-resistances form series connection, and their another pin extends outside the cavity volume respectively.Present embodiment can realize making the stack of two pressure sensitive voltages, thereby makes the piezo-resistance of low pressure-sensitive voltage can bear higher pressure sensitive voltage.
Embodiment 6:
For piezo-resistance of the present invention embodiment schematic diagram in parallel, be provided with two piezo-resistances 2 as Fig. 7 in the cavity volume, after their one of them pin 3 is connected to each other, be connected 5, two piezo-resistances again to form parallel connection with a pin of alloy-type temperature fuse 4; In addition two pins of piezo-resistance and another pin of alloy-type temperature fuse extend outside the cavity volume respectively.It is constant that present embodiment can be implemented in pressure sensitive voltage, strengthens through-current capacity.
Embodiment 7:
Possess warning function embodiment schematic diagram as Fig. 8 for the present invention, alloy-type temperature fuse 4 fusing-off temperature of also connecting is identical, and can change alarm temperature fuse 9 normally closed or that often opened by normally closed commentaries on classics by often opening.Two fuses fuse simultaneously, and alarm temperature fuse 9 can make the indicator light that is attached thereto bright or go out, thereby plays warning function.
Embodiment 8:
The Application Example circuit diagram that starts standby piezo-resistance is arranged for the utility model possesses as Fig. 9, alloy-type temperature fuse 4 next doors can also be placed one and be had certain operating temperature characteristic and by often opening the device 10 that changes normally closed, device 10 can be connected in series another standby piezo-resistance (as embodiment 1 ~ 7) back parallel connection in the line, thereby play when the temperature of piezo-resistance 2 (in online) arrives assigned temperature, start second piezo-resistance and enter operating state; Principle can realize multistage standby piezo-resistance according to this.Such product is specially adapted in the circuit of railroad and anti-thunderbolt.Embodiment 8 also can carry out simultaneously with embodiment 7.
Claims (12)
1, a kind of piezo-resistance that is provided with alloy-type temperature fuse is characterized in that piezo-resistance and alloy-type temperature fuse are located in the airtight cavity volume and the surface is close to, and the described pin that is provided with the piezo-resistance of alloy-type temperature fuse is stretched in outside the cavity volume; Dress alloy flux in the cavity volume.
2, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 1 is characterized in that: described airtight cavity volume is one to have the cavity volume of opening, and its opening part is provided with epoxy sealing; The two ends of described alloy-type temperature fuse are provided with pin.
3, a kind of piezo-resistance that is provided with alloy-type temperature fuse, it is characterized in that piezo-resistance and alloy-type temperature fuse be located in the big airtight cavity volume, the described pin that is provided with the piezo-resistance of alloy-type temperature fuse extends outside the big cavity volume, alloy-type temperature fuse is located in another little cavity volume in the big airtight cavity volume, and the alloy flux is housed in the little cavity volume.
4, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3 is characterized in that: described big cavity volume is one to have the cavity volume of opening, and its opening part is provided with epoxy resin envelope material; The two ends of described alloy-type temperature fuse are provided with pin.
5, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3 is characterized in that: described little cavity volume is the cavity volume that pottery or the high insulating material of other high heat conduction are made.
6, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3, a pin that it is characterized in that piezo-resistance is connected with a pin of alloy-type temperature fuse and is enclosed within the big cavity volume; Another pin of piezo-resistance and alloy-type temperature fuse extends respectively outside the big cavity volume.
7, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3 is characterized in that two pins of piezo-resistance all extend outside the big cavity volume, and one of them pin is connected with a pin of alloy-type temperature fuse; Another pin of alloy-type temperature insurance extends outside the big cavity volume.
8, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3 is characterized in that two pins of piezo-resistance and alloy-type temperature fuse all extend outside the big cavity volume, does not connect mutually between each pin.
9, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3, it is characterized in that: be provided with two piezo-resistances in the described big cavity volume, two pins of alloy-type temperature fuse are connected with one of them pin of two piezo-resistances respectively, and are enclosed within the big cavity volume; Two piezo-resistances form series connection, and their another pin extends respectively outside the big cavity volume.
10, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3, it is characterized in that establishing in the described big cavity volume two piezo-resistances, after their one of them pin interconnects, be connected with a pin of alloy-type temperature fuse, two piezo-resistances form parallel connection again; In addition two pins of piezo-resistance and another pin of alloy-type temperature fuse extend respectively outside the big cavity volume.
11, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3 is characterized in that the described alloy-type temperature fuse fusing-off temperature of also connecting is identical, and can change alarm temperature fuse normally closed or that often opened by normally closed commentaries on classics by often opening.
12, a kind of piezo-resistance that is provided with alloy-type temperature fuse as claimed in claim 3, its feature alloy-type temperature fuse is other also to be provided with one and to have certain operating temperature characteristic and by often driving the switching device shifter that changes normally closed, and switching device shifter is connected after another standby piezo-resistance parallel connection in the line.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100446615A CN100561611C (en) | 2005-09-03 | 2005-09-03 | Be provided with the piezo-resistance of alloy-type temperature fuse |
| US11/792,991 US8780521B2 (en) | 2004-12-13 | 2005-11-01 | Metal oxide varistor with built-in alloy-type thermal fuse |
| EP05802105.6A EP1826780B1 (en) | 2004-12-13 | 2005-11-01 | Varistor with an alloy-type temperature fuse |
| JP2007600039U JP3142835U (en) | 2004-12-13 | 2005-11-01 | Varistor with alloy-type thermal fuse |
| CA2588819A CA2588819C (en) | 2004-12-13 | 2005-11-01 | Metal oxide varistor with built-in alloy-type thermal fuse |
| PCT/CN2005/001810 WO2006063503A1 (en) | 2004-12-13 | 2005-11-01 | Varistor with an alloy-type temperature fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100446615A CN100561611C (en) | 2005-09-03 | 2005-09-03 | Be provided with the piezo-resistance of alloy-type temperature fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1925072A CN1925072A (en) | 2007-03-07 |
| CN100561611C true CN100561611C (en) | 2009-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100446615A Active CN100561611C (en) | 2004-12-13 | 2005-09-03 | Be provided with the piezo-resistance of alloy-type temperature fuse |
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| CN (1) | CN100561611C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010015814B4 (en) * | 2010-04-20 | 2014-08-07 | Phoenix Contact Gmbh & Co. Kg | Snubber |
| CN202121318U (en) * | 2011-06-30 | 2012-01-18 | 厦门赛尔特电子有限公司 | Over-voltage protection module of direct current circuit |
| CN202474847U (en) * | 2011-12-28 | 2012-10-03 | 厦门赛尔特电子有限公司 | Full-model overvoltage protection module for AC circuit |
| CN103258608B (en) * | 2013-05-03 | 2016-10-05 | 隆科电子(惠阳)有限公司 | Tubular voltage dependent resistor device |
| DE102015225376B3 (en) * | 2015-12-16 | 2017-01-19 | Phoenix Contact Gmbh & Co. Kg | Overvoltage protection device of type II |
| CN116052967A (en) | 2018-04-04 | 2023-05-02 | 东电化电子元器件(珠海保税区)有限公司 | Thermal protector for piezoresistor |
| CN110349720A (en) | 2018-04-04 | 2019-10-18 | 爱普科斯电子元器件(珠海保税区)有限公司 | Metal-oxide varistor and its manufacturing method |
| CN109687392A (en) * | 2019-02-15 | 2019-04-26 | 漳州雅宝电子有限公司 | A kind of transient diode mould group with overcurrent and overheat protector |
| CN111981625B (en) * | 2019-05-21 | 2021-10-29 | 青岛海尔空调器有限总公司 | Air conditioner protection device, air conditioner and control method |
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2005
- 2005-09-03 CN CNB2005100446615A patent/CN100561611C/en active Active
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| Publication number | Publication date |
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| CN1925072A (en) | 2007-03-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20070307 Assignee: Xiamen Set Electronics Co., Ltd. Assignor: Xu Zhonghou Contract record no.: 2015990000002 Denomination of invention: Varistor with alloy-type temperature fuse Granted publication date: 20091118 License type: Exclusive License Record date: 20150104 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190701 Address after: 361101 No. 8067 Xiangan West Road, Xiangan Industrial Zone, Xiamen City, Fujian Province Patentee after: Xiamen Set Electronics Co., Ltd. Address before: 361009 Xiamen Selter Electronics Co., Ltd. on the second floor of 598 Jiahe Road Industrial Park, Huli District, Xiamen City, Fujian Province Patentee before: Xu Zhonghou |
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| TR01 | Transfer of patent right |