CN102354964B - Surge absorber containing non-solid conductor - Google Patents
Surge absorber containing non-solid conductor Download PDFInfo
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- CN102354964B CN102354964B CN201110308644.3A CN201110308644A CN102354964B CN 102354964 B CN102354964 B CN 102354964B CN 201110308644 A CN201110308644 A CN 201110308644A CN 102354964 B CN102354964 B CN 102354964B
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Abstract
The invention relates to a surge absorber containing a non-solid conductor, which comprises an insulation shell, a piezoresistive wafer body, a plurality of inner metal sheets, a fixed component, the non-solid conductor and outer metal sheets, wherein an accommodating space is arranged inside the insulation shell; the piezoresistive wafer body and the inner metal sheets are accommodated inside the accommodating space, one side surface of each inner metal sheet is pushed against the piezoresistive wafer body; the fixed component is formed by conductive materials; the non-solid conductor is filled inside the accommodating space; and the outer metal sheets are respectively connected with one end of the fixed component and are respectively and electrically connected with the inner metal sheets, and each outer metal sheet is connected to a correspondent contact on a circuit. Under the situation that surging happens, the piezoresistive wafer body can be quickly conducted, conductive medium which is scattered inside the non-solid conductor can also be rapidly connected and conducted, so the current produced by the surging can be discharged to a grounding end, the possibility that the piezoresistive wafer body is broken down by the surging can be reduced, the efficacy and the safety of the surge absorber can be greatly improved, and the service life of the surge absorber can be greatly prolonged.
Description
Technical field
The present invention relates to surge absorber, be particularly related to a kind of surge absorber that contains non-solid conductor, be equipped with sheet metal in several in the insulation shell of this surge absorber, one piezo-resistance lamellar body and non-solid conductor, should abut on the piezo-resistance lamellar body by interior sheet metal, and respectively should through the outer sheet metal outside a fixation kit and this insulation shell, be electrically connected mutually respectively by interior sheet metal, in order to connect with contact corresponding on circuit, when surging occurs, this piezo-resistance lamellar body and the rapid conducting of non-solid-state conductive physical efficiency, with the current drain by surging was produced to earth terminal, avoid the electronic component on circuit to be damaged because of surging.
Background technology
Progress along with electronics technology; computer, TV, air conditioner, tabulating machine and various electronic installation etc. have become indispensable instrument in people's daily life and work; in order effectively to improve the useful life of electronic installation; and avoiding electronic installation to produce misoperation (malfunction) problem when running, manufacturer all researches and develops misoperation strick precaution and circuit protection technology with exhausting one's ability.The long-term research experience according to the inventor, surging (transient error voltage) is one of origin cause of formation the most often caused the electronic installation misoperation, and the impact that surging causes electronic installation is often also serious.In the situation that surging produces, surging, except the electronic building brick in electronic installation is disturbed in meeting, more easily makes electronic building brick that the infringement that can't restore occurs, and causes the electronic installation can't normal operation.
Common surging consists essentially of two types of thunder surging (lightning surge) and switching surgings (switchingsurge) etc., wherein the thunder surging is the surging produced because of the lightning that thunders, when thunder and lightning hits the power line contiguous with electronic installation, to have the part electric current sees through in power line inflow building, and via the power line of circuit layout and electronic installation, enter in electronic installation, and produce surging in the circuit of electronic installation, impact the electronic building brick in circuit.On the other hand, opening and closing surging is to produce because of the circuit switching station, when switch module is converted to off state by conducting state, or while by off state, being converted to conducting state, will produce significantly change in voltage within the extremely short time in circuit, make the electronic building brick on circuit bear transient error voltage.Because the transient error voltage of surging may damage electronic installation, even cause the electronic installation short circuit and initiation fire, therefore for avoiding that the above-mentioned facts occurs, occur, manufacturer generally understands and install surge absorber additional in the circuit of electronic installation.
Existing surge absorber is mainly a piezo-resistance (Voltage Dependent Resistor, be called for short VDR, claim again Varistor), common piezo-resistance is metal oxide piezo-resistance (MOV, Metal Oxide Varistor), mainly comprise the ceramic block formed by Zinc oxide particles and a small amount of metal oxide interval, this ceramic block is held between two metal sheets, make the intersection of zinc oxide and metal oxide form diode effect, due to a large amount of distribution of particles being arranged in piezo-resistance, thus piezo-resistance be equivalent to by a large amount of diodes be connected form.Under the state of low-voltage, the diode in piezo-resistance only has micro-converse electrical leakage electric current, and, under high-tension state, diode will reverse collapse occur because of tunnel effect (Tunnel effect) and thermoelectronic effect, and large electric current circulates.Therefore, the phenomenon that the current-voltage characteristic curve of piezo-resistance reflects is: during high voltage, resistance is low, electric current is large; During low-voltage, resistance is high, electric current is little.Characteristic by piezo-resistance, when piezo-resistance (surge absorber) is mounted (usually meaning parallel connection) to a circuit, and when the voltage in this circuit is normal working voltage, this piezo-resistance is in readiness, and the resistance value of this piezo-resistance is high, therefore no current this piezo-resistance of flowing through almost.Once produce surging in this circuit, now in circuit, be high-tension state, in the case, the resistance value of piezo-resistance is to descend moment, makes large electric current by this piezo-resistance, but not other electronic building brick in the circuit of flowing through.By this, piezo-resistance (surge absorber) can be born surging, avoids other electronic building brick to be subject to surging and impacts, to reach the effect of sudden-wave absorbing.
Yet the surge absorber that tradition adopts piezo-resistance, only can carry large voltage at short notice, and the overvoltage protection of continuation can't be provided, of a specified duration if the overcurrent of this piezo-resistance of flowing through continued, and easily makes the piezo-resistance catching fire, quite dangerous.In addition, when surge absorber bears the caused super-high-current of surging, surge absorber is very likely punctured by powerful electric current, and can't again bring into play the effect of sudden-wave absorbing, but the user can't find that surge absorber is breakdown from the outward appearance of electronic installation, and continue to use this electronic installation, while causing next surging to occur, electronic component in electronic installation is damaged because of surging, and even catching fire, very dangerous.
Therefore, how to improve the problems of existing surge absorber, avoid surge absorber to be punctured by powerful electric current, with fail safe and the useful life of effectively improving surge absorber, be the important topic that the present invention inquires in this wish.
Summary of the invention
The object of the invention is to design a kind of surge absorber that contains non-solid conductor, can effectively improve the fail safe of surge absorber, further protective circuit is not disturbed by surging, guarantees safety in utilization and the life-span of electronic installation.
For achieving the above object, technical solution of the present invention is:
A kind of surge absorber that contains non-solid conductor, comprise an insulation shell, a piezo-resistance lamellar body, several interior sheet metals, several fixation kits, non-solid conductor and several outer sheet metals, wherein in this insulation shell, is provided with an accommodation space; This piezoresistive wafer system is placed in this accommodation space; In being somebody's turn to do, sheet metal also is placed in this accommodation space, and in this, a side system of sheet metal abuts on this piezo-resistance lamellar body, and adjacent being somebody's turn to do between interior sheet metal keep respectively a gap; This fixation kit system is consisted of conductive material, respectively this fixation kit system is fixed in a side of this insulation shell in order to sheet metal in respectively being somebody's turn to do and this piezo-resistance lamellar body, and this piezo-resistance lamellar body is positioned between a side of respectively being somebody's turn to do interior sheet metal and this insulation shell, and an end of this fixation kit also extends to outside a side of this insulation shell; Be filled in this accommodation space, this non-solid-state conductive system is evenly mixed by a solvent and conducting medium this non-solid-state conductive system watertight, and wherein this solvent is dielectric liquid, and this conducting medium system is suspended in this solvent dispersedly; Respectively should outer sheet metal with an end of this fixation kit respectively, be connected respectively, should form electrical connection by interior sheet metal respectively with respectively, and should be fixed on by this fixation kit outside a side of this insulation shell by outer sheet metal, respectively should can be electrically connected to contact corresponding on a circuit by outer sheet metal.So, in the situation of this circuit generation surging, this piezoresistive wafer physical efficiency is because of powerful voltage fast conducting of moment, simultaneously, the conducting medium disperseed in non-solid conductor, also can pass rapidly and connect conducting, with the current drain by surging was produced to earth terminal, prevent that the electronic component on this circuit is damaged because of surging, and share the electric current of surging by non-solid conductor, reduce the chance that the piezo-resistance lamellar body is punctured by surging.
Further, arbitrary interior sheet metal is towards the position of adjacent interior sheet metal, be provided with at least one point, so, the charge energy in this on sheet metal is focused to this point, when surging occurs, this surging just can make this point stored charge, and, when the charge number of accumulation makes voltage level reach a predetermined value, this electric charge can make the conducting medium disperseed in this non-solid conductor, pass rapidly and connect conducting.
Again, described insulation shell comprises one first housing and one second housing, this first housing and the second housing be watertight be combined as a whole, to form this accommodation space in this insulation shell.
Have, on piezo-resistance lamellar body of the present invention, offer a perforation, this first housing is provided with a projection corresponding to the position of this perforation, and this piezoresistive wafer system is set on this projection by this perforation, increases by this convenience and the efficiency of assembling.
In addition, on a side of insulation shell of the present invention, be provided with several jubes, and form respectively a groove between this adjacent jube, with accommodating respectively this outer sheet metal, separating by this respectively should outer sheet metal.
Beneficial effect of the present invention
The present invention arranges piezo-resistance lamellar body and non-solid conductor in surge absorber simultaneously, make both can bring into play the effect of sudden-wave absorbing simultaneously, to avoid existing surge absorber after absorbing surging, occurred by facts such as electric current puncture, and then promote useful life and the fail safe of surge absorber.
The accompanying drawing explanation
The perspective exploded view that Fig. 1 is a preferred embodiment of the present invention.
The schematic perspective view that Fig. 2 is a preferred embodiment of the present invention.
The floor map that Fig. 3 is a preferred embodiment of the present invention.
Embodiment
Referring to Fig. 1, one preferred embodiment of a kind of surge absorber that contains non-solid conductor of the present invention, this surge absorber 1 comprises an insulation shell 10, a piezo-resistance lamellar body 11, sheet metal 12a, 12b, 12c, several fixation kits 13a, 13b, 13c and several outer sheet metal 14a, 14b, 14c in several.In addition, refer to shown in Fig. 3, this surge absorber 1 also comprises non-solid conductor 15.
Refer to shown in Fig. 1, described insulation shell 10 is consisted of one first housing 101 and one second housing 102, this first housing 101 and the second housing 102 be watertight be combined as a whole, with at interior formation one accommodation space 100 of this insulation shell 10.This piezo-resistance lamellar body 11 is to be placed in this accommodation space 100, in this preferred embodiment, the advantages such as this piezo-resistance lamellar body 11 comprises zinc oxide, and zinc oxide possesses that discharge capacity is large, fast response time, voltage temperature coefficient are low, be suitable as the principal component of piezo-resistance.Only, the present invention is not as limit, and manufacturer, when conceptual design surge absorber 1 according to the present invention, also can, according to actual user demand or cost consideration, be used bakelite (phenolic resins) or other material to make this piezo-resistance lamellar body 11.
Refer to again shown in Fig. 1, described interior sheet metal 12a, 12b, 12c also are placed in described accommodation space 100, in being somebody's turn to do, the side system of sheet metal 12a, 12b, 12c abuts on this piezo-resistance lamellar body 11, and adjacent being somebody's turn to do between interior sheet metal 12a, 12b, 12c keeps respectively a gap (as shown in Figure 2).On Practical manufacturing, manufacturer can utilize the metal such as copper make should in sheet metal 12a, 12b, 12c, therefore should in material the unrestricted condition of the present invention of sheet metal 12a, 12b, 12c, close first Chen Ming.
Refer to shown in Fig. 1,2, described fixation kit 13a, 13b, 13c system are consisted of conductive material, wherein this fixation kit 13a is fixed to interior sheet metal 12a on described piezo-resistance lamellar body 11, and fixation kit 13b is fixed to interior sheet metal 12b on described piezo-resistance lamellar body 11, and fixation kit 13c is fixed to interior sheet metal 12c on this piezo-resistance lamellar body 11.By this, fixation kit 13a, 13b, 13c are fixed to interior sheet metal 12a, 12b, 12c and piezo-resistance lamellar body 11 in a side of insulation shell 10, in other words, piezo-resistance lamellar body 11 is positioned between a side of sheet metal 12a, 12b, 12c and insulation shell 10 in this.In addition, the end of each fixation kit 13a, 13b, 13c passes respectively sheet metal 12a, 12b, 12c, piezo-resistance lamellar body 11 and this insulation shell 10 in each, and extends to outside a side of insulation shell 10.Refer to shown in Fig. 2, offer a perforation 110 on described piezo-resistance lamellar body 11, this first housing 101 is provided with a projection 1010 corresponding to the position of this perforation 110, this piezo-resistance lamellar body 11 is to be set on this projection 1010 by this perforation 110, can increase convenience and the efficiency of assembling by this structural design.
Refer to shown in Fig. 3, this non-solid conductor 15 be watertight be filled in this accommodation space 100 (as shown in Figure 1), this non-solid conductor 15 is evenly to be mixed by a solvent 150 and conducting medium 151, wherein this solvent 150 is dielectric liquid, and this conducting medium 151 is to be suspended in dispersedly in this solvent 150.In this preferred embodiment, this solvent 150 is the base oil of oil (as: base oil that contains cycloalkane), and this conducting medium 151 is the zinc oxide particle, only, the present invention is not as limit, manufacturer also can be used mineral oil (Mineral Oil) or other liquid as this solvent 150, and can adopt other metal or metal oxide particle as this conducting medium 151.
Refer to shown in Fig. 1,2, outer sheet metal 14a is connected with the end of fixation kit 13a, and then form electrical connection with interior sheet metal 12a, and outer sheet metal 14b is connected with the end of fixation kit 13b, and then form electrical connection with interior sheet metal 12b, and outer sheet metal 14c is connected with the end of fixation kit 13c, and then form electrical connection with interior sheet metal 12c, by this fixation kit 13a, 13b, 13c, this outer sheet metal 14a, 14b, 14c are fixed on outside a side of insulation shell 10.On one side of this insulation shell 10, be provided with several jubes 103, and form respectively a groove 104 between this adjacent jube 103, respectively be somebody's turn to do outer sheet metal 14a, 14b, 14c with accommodating, and separate each outer sheet metal 14a, 14b, 14c.In actual use, respectively this outer sheet metal 14a, 14b, 14c can be electrically connected to respectively the upper corresponding contact of a circuit (or circuit board) to this surge absorber 1.In this preferred embodiment, respectively this outer sheet metal 14a, 14b, 14c are connected to respectively the contact of waterline, live wire and ground wire.Refer to shown in Fig. 2, the upper position towards interior sheet metal 12b, 12c of interior sheet metal 12a, be provided with several points 121a, interior sheet metal 12b is upper is provided with several points 121b towards the position of interior sheet metal 12a, 12c, again, interior sheet metal 12c is upper is provided with several points 121c towards the position of interior sheet metal 12a, 12b.
By structural design of the present invention, refer to Fig. 2, shown in 3, when the circuit because that this surge absorber 1 is installed thunders or other factors and producing in the situation of surging, this piezo-resistance lamellar body 11 can be because of powerful voltage fast conducting of moment, simultaneously, the conducting medium 151 of non-solid conductor 15 interior dispersions, also can pass rapidly and connect conducting, with the current drain by surging was produced to earth terminal, except effectively preventing that the electronic component on this circuit is damaged because of surging, and share the electric current of surging by non-solid conductor 15, more can reduce the possibility that piezo-resistance lamellar body 11 is punctured by surging.In addition, charge energy on interior sheet metal 12a, 12b, 12c is focused to point 121a, 121b, 121c, when surging occurs, surging just can make this point 121a, 121b, 121c stored charge, and when the charge number of accumulation makes voltage level reach a predetermined value, this electric charge can make the conducting medium 151 of these non-solid conductor 15 interior dispersions, passs rapidly and connects conducting.On the other hand, because non-solid conductor 15 can not crossed strong and breakdown because of surging, therefore, even if piezo-resistance lamellar body 11 is because slight crack occurs surging, when next surging occurs, this non-solid conductor 15 is except utilizing its conducting medium 151 to pass the mode connect, outside the effect of performance conducting, more can in time fill up the slight crack of piezo-resistance lamellar body 11, make this piezo-resistance lamellar body 11 continue to play effectiveness, to dredge electric current, significantly increase usefulness performance, useful life and the fail safe of surge absorber.
Claims (5)
1. a surge absorber that contains non-solid conductor comprises:
One insulation shell, be provided with an accommodation space in it;
One piezo-resistance lamellar body, be placed in described accommodation space;
Sheet metal in several, be placed in described accommodation space, and in this, a side system of sheet metal abuts on described piezo-resistance lamellar body, and keeps respectively a gap between adjacent interior sheet metal;
Several fixation kits, by conductive material, formed, respectively this fixation kit system is in order to be fixed to sheet metal in each and piezo-resistance lamellar body in one side of described insulation shell, the piezo-resistance lamellar body is positioned between a side of interior sheet metal and insulation shell, an end that is fixation kit passes respectively sheet metal, piezo-resistance lamellar body and this insulation shell in each, and extends to outside a side of insulation shell;
One non-solid conductor is filled in described accommodation space watertight, and this non-solid conductor is evenly mixed by a solvent and conducting medium, and wherein this solvent is dielectric liquid, and this conducting medium is suspended in this solvent dispersedly; And
Several outer sheet metals, be connected with an end of each fixation kit respectively, should form electrical connection by interior sheet metal respectively with respectively, and should by fixation kit, be fixed on outside a side of insulation shell by outer sheet metal.
2. the surge absorber that contains non-solid conductor as claimed in claim 1, is characterized in that, arbitrary interior sheet metal, towards the position of adjacent interior sheet metal, is provided with at least one point.
3. the surge absorber that contains non-solid conductor as claimed in claim 2, it is characterized in that, described insulation shell comprises one first housing and one second housing, this first housing and the second housing be watertight be combined as a whole, to form described accommodation space in this insulation shell.
4. the surge absorber that contains non-solid conductor as claimed in claim 3, it is characterized in that, offer a perforation on described piezo-resistance lamellar body, described the first housing is provided with a projection corresponding to the position of this perforation, and this piezoresistive wafer system is set on this projection by this perforation.
5. the surge absorber that contains non-solid conductor as claimed in claim 4, is characterized in that, on a side of described insulation shell, is provided with several jubes, and form respectively a groove between this adjacent jube, with accommodating respectively this outer sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308644.3A CN102354964B (en) | 2011-10-12 | 2011-10-12 | Surge absorber containing non-solid conductor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110308644.3A CN102354964B (en) | 2011-10-12 | 2011-10-12 | Surge absorber containing non-solid conductor |
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| CN102354964A CN102354964A (en) | 2012-02-15 |
| CN102354964B true CN102354964B (en) | 2014-01-08 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078957A (en) * | 2013-03-27 | 2014-10-01 | 陈赞棋 | Surge bleeder |
| CN111564301A (en) * | 2019-02-14 | 2020-08-21 | 模甸科技股份有限公司 | Electromagnetic shielding structure of transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5519564A (en) * | 1994-07-08 | 1996-05-21 | Lightning Eliminators | Parallel MOV surge arrester |
| US5936824A (en) * | 1997-08-13 | 1999-08-10 | Lightning Eliminators And Consultants | Encapsulated MOV surge arrester for with standing over 100,000 amps of surge per doc |
| CN101807460A (en) * | 2009-02-13 | 2010-08-18 | 兴勤（常州）电子有限公司 | Over-voltage protection element |
| TW201133519A (en) * | 2010-03-18 | 2011-10-01 | zan-qi Chen | Non-solid conductive surge absorber |
| CN202282607U (en) * | 2011-10-12 | 2012-06-20 | 上海合璧电子元件有限公司 | Surge absorber containing non-solid conductor |
-
2011
- 2011-10-12 CN CN201110308644.3A patent/CN102354964B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5519564A (en) * | 1994-07-08 | 1996-05-21 | Lightning Eliminators | Parallel MOV surge arrester |
| US5936824A (en) * | 1997-08-13 | 1999-08-10 | Lightning Eliminators And Consultants | Encapsulated MOV surge arrester for with standing over 100,000 amps of surge per doc |
| CN101807460A (en) * | 2009-02-13 | 2010-08-18 | 兴勤（常州）电子有限公司 | Over-voltage protection element |
| TW201133519A (en) * | 2010-03-18 | 2011-10-01 | zan-qi Chen | Non-solid conductive surge absorber |
| CN202282607U (en) * | 2011-10-12 | 2012-06-20 | 上海合璧电子元件有限公司 | Surge absorber containing non-solid conductor |
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| CN102354964A (en) | 2012-02-15 |
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