EP3488450A1 - Bauelement zum schutz vor überspannungen und dessen verwendung mit zwei varistoren und einem ableiter in einem einzigen bauteil - Google Patents
Bauelement zum schutz vor überspannungen und dessen verwendung mit zwei varistoren und einem ableiter in einem einzigen bauteilInfo
- Publication number
- EP3488450A1 EP3488450A1 EP17740698.0A EP17740698A EP3488450A1 EP 3488450 A1 EP3488450 A1 EP 3488450A1 EP 17740698 A EP17740698 A EP 17740698A EP 3488450 A1 EP3488450 A1 EP 3488450A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- abieiter
- varistor
- varistors
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/16—Series resistor structurally associated with spark gap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/04—Housings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/18—Electrolytic device structurally associated with spark gap
Definitions
- the present invention relates to a device for protection against overvoltages.
- the invention further relates to the use of a component for protection against overvoltages.
- Overvoltage protection devices can be used as a short-circuit switch in the event of overvoltage. This can prevent a surge-related damage to cables and Gerä ⁇ th.
- a problem to be solved is to provide an improved construction ⁇ element for protection against overvoltages. Furthermore, the use of an improved device for protection against overvoltage should be specified.
- a device is specified.
- the Bauele ⁇ ment is designed to protect against surges.
- the 25 element is a combination component.
- the component has ei ⁇ nen Abieiter, in particular a Gasabieiter on.
- the component has a first varistor and a second varistor.
- the varistors are maral ⁇ tet in series.
- the varistors are, for example, disk varistors.
- the varistors have a ceramic base material, preferably ⁇ as zinc oxide.
- the component has a first connection element and a second connection element, for example wires.
- the first varistor is electrically conductively connected to the first connection element.
- the second varistor is electrically conductively connected to the second connection element.
- the device combines the varistors and the Abieiter in a single component. In this way, an easy-to-use component for protection against overvoltages is provided with optimally matched components.
- the component is compact and easy to assemble due to the union of the three components.
- the Abieiter is arranged between the varistors.
- the varistors are arranged directly adjacent to the Abieiter.
- the varis ⁇ tors are soldered to the Abieiter, for example by means
- the device is formed from ⁇ thereto and disposed over voltages between the first connection element and the second connection element to compen ⁇ Sieren.
- the first connection element corresponds to the L conductor / the phase and the second connection element corresponds to the N conductor or vice versa.
- the device is to be ⁇ forms and arranged over-voltages between the first connection element and a protective conductor and / or between the second connection element and the protective conductor to kompensie ⁇ ren. In this way, power surges can be effectively compensated by the device.
- the drain has a first outer electrode and a second outer electrode.
- the first Varistor is electrically connected to the first outer electrode.
- the second varistor is electrically conductively connected to the second outer electrode.
- the Abieiter has a disposed between the outer electrodes central electrode.
- the drain further includes a discharge space for allowing electrical discharge between the first outer electrode and the central electrode and / or between the second outer electrode and the central electrode at an overvoltage. Overvoltages occurring between the L-conductor and the protective conductor as well as between the N-conductor and the protective conductor can be effectively compensated in this way.
- the component has a contact element.
- the contact element has, for example, a short-circuiting bridge.
- the contact element is also madebil ⁇ det and arranged to compensate occurring between the first connection element and the second connection element overvoltage. Overvoltages occurring between the L-conductor and the N-conductor can be effectively compensated in this way.
- the Abieiter on an iso ⁇ lator is designed and arranged to prevent a flashover of the contact element to the central electrode.
- the insulator is formed between the contact element and the central electrode.
- the iso ⁇ lator for example, disc-shaped. Preference ⁇ wise, the insulator on plastic.
- a flashover between the contact element and the central electrode also by an increase in the vertical distance between the contact element and the central electrode can be obtained.
- the maximum vertical distance in this case is about 2 mm.
- the distance between the contact element and the central electrode can be reduced accordingly.
- the Abieiter at least one insulating element, preferably two or four isolie ⁇ Rende elements on.
- the insulating element is designed and arranged to prevent an electrically conductive connection between the outer electrodes and / or between the respective outer electrode and the central electrode.
- the insulating member is at least partially disposed in an interim ⁇ c region between the respective outer electrode and the central electrode.
- the insulating element comprises a ceramic, preferably aluminum oxide.
- the device has an insulating sheath.
- the shell preferably completely surrounds the component, with the exception of the connection elements. Ins ⁇ particular Abieiter and the varistors are arranged together within the insulating sheath.
- the insulating sheath preferably has a powder coating. Due to the insulating sheath, the device can be effectively isolated electrically and mechanically to the outside.
- Bauele ⁇ ment for protection against overvoltages.
- the device is preferably used as input protection for a variety of devices such as 230V power supplies.
- the above-mentioned device for ⁇ be required use is provided. All characteristics which are The same applies to the use of the component and vice versa.
- a first varistor, a second varistor and a Abieiter are united in a single component.
- FIG. 2 shows a component for protection against overvoltages according to a first exemplary embodiment
- FIG. 3 is a sectional view of a portion of the building ⁇ elements according to Figure 2,
- FIG. 4 shows a perspective view of the subregion according to FIG.
- FIG. 3, Figure 5 is a sectional view of a device for
- FIG. 6 is a perspective view of the device according to
- FIG. 5 is a diagrammatic representation of FIG. 5.
- FIG. 1 shows an electrical circuit 1 for protection against overvoltages according to the prior art.
- the circuit 1 has three discrete or separate components.
- the scarf ⁇ tion 1 has in particular a first varistor 5a and a second varistor 5b and a Abieiter 6.
- the varistors 5a, 5b are connected in series.
- the first varistor 5a is electrically connected via a node 7 to the L-conductor (phase) 2.
- the second varistor 5b is electrically conductively connected to the N conductor 3 via a node 8.
- the two varistors 5 a, 5 b are electrically conductively connected to the collector 6 via a further node 9.
- the Abieiter 6 is preferably a Gasab- conductor.
- the Abieiter 6 is electrically connected to the protective conductor (PE conductor) 4.
- the circuit 1 protects against overvoltages which occur either between the L-conductor 2 and the N-conductor 3 or between the L-conductor 2 or the N-conductor 3 and the protective conductor 4.
- the two series-connected varistors 5a, 5b limit the voltage.
- the Abieiter 6 and the varistor 5a, 5b connected in series ignite the subsequent current until the Abieiter 6 extinguishes.
- the Abieiter 6 usually has one very high response voltage so that overvoltage protection does not respond to production-related insulation tests. Klei ⁇ nere response voltages are possible if the insulation tests allow.
- the response voltage is between 1500 V and 7500 V, for example 3600 V.
- a device 10 which effectively protects against overvoltages and in which the individual components optimally aufei ⁇ Nander as well as to external requests (installation situation, insulation test) adjusted.
- FIG. 2 shows a component 10 for protection against overvoltage according to a first exemplary embodiment.
- the component 10 is cylindrical (see FIG. 6).
- the construction ⁇ element 10 is a combination component.
- the device 10 combines the components described above in a single component.
- the component 10 has a first varistor 5a, a second varistor 5a and a collector 6.
- the varistors 5a, 5b are disc-shaped or plate-shaped.
- the varistors 5a, 5b are preferably plate varistors.
- the varistors 5a, 5b zinc oxide (ZnO) as a ceramic base material.
- the first Va ⁇ RISTOR 5a is electrically connected to a first terminal element IIa (here the L-wire 2).
- the second Ristor 6b is electrically connected to a second connection element IIb (in this case the N conductor 3).
- Diver post ⁇ Lich the first varistor 5a can also be connected to the N-conductor 3 and the second varistor 5b with the L-conductor 2 electrically conductive.
- the connection elements IIa, IIb have at ⁇ game as lead wires.
- the connection elements IIa, IIb are preferably at the respective varistor 5a, 5b, at ⁇ game as a side surface of the respective varistor 5a, 5b, soldered ( Figures 5 and 6).
- the Abieiter 6 is embedded between the varistors 5a, 5b. In particular, adjacent a side surface of the respective Va ⁇ ristors 5a, 5b preferably directly to a side surface of the Abieiters 6 at.
- the varistors 5a, 5b are soldered to the derivation ter 6, preferably by means of solder (see ⁇ soft solder 19, Figure 6).
- the Abieiter 6 has three electrodes.
- the collector 6 has a first outer electrode 13a and a second outer electrode 13b.
- the Abieiter 6 has a arranged between the outer electrodes 13 a, 13 b central electrode 12.
- the first outer electrode 13a is electrically connected to the first varistor 5a.
- the second outer electrode 13b is electrically conductively connected to the second varistor 5b.
- the central electrode 12 is connected to a third closing element 11c, preferably a lead wire electrically connected.
- the third connection element IIa represents the protective conductor 4.
- the outer electrodes 13a, 13b and the central electrode 12 preferably have copper or an iron-nickel alloy.
- the cavity 20 is preferably with filled with a noble gas.
- the gas may be, for example, air or a gas mixture.
- the gas mixture may comprise one or more of argon, neon and hydrogen.
- the central electrode 12 protrudes into the cavity 20 from an upper side and an underside of the Abieiters 6.
- the gas-filled cavity 20 can be used in particular as Funkenstre ⁇ bridge. Accordingly, the gas-filled cavity 20 acts insulating, if between the outer electrodes 13a, 13b and the central electrode 12, a voltage is applied, which does not exceed a predetermined breakdown voltage ⁇ . When exceeding the breakdown voltage that is arranged in the gas-filled cavity 20 gas is ionized and the respective external electrode 13a, 13b is connected to the central ⁇ eral electrode 12 via the now formed in the cavity 20 of the spark gap conducting. This can lead to a short circuit. Because of this short-circuit is triggered in the component 10, an interconnected with the component 10 circuitry can be protected from damage Be ⁇ .
- the device 10 further includes a contact member 17, before preferably ⁇ a jumper on.
- the contact element 17 is formed bow-shaped.
- the contact element 17 has at ⁇ game as copper, iron and / or nickel.
- the contact element 17 is designed to produce an electrically conductive connection between the varistors 5a, 5b.
- the contact element 17 compensates for overvoltages occurring between the first connection element IIa and the second connection element IIb.
- a voltage occurring between the L-conductor 2 and the N-conductor 3 can be compensated.
- the contact element 17 is attached to the outer electrodes 13a, 13b, in particular clipped (see Figures 5 and 6).
- the contact element 17 preferably ⁇ two clamps 22, which are arranged at the ends of the Maisele ⁇ element 17, for example, soldered, are.
- the brackets 22 and the contact element 17 can also be made in one piece.
- the brackets 22 are for example semicircular madebil ⁇ det.
- the brackets 22 are flexible or flexible.
- the brackets 22 are elastically deformable.
- the brackets 22 are designed to spring in the radial direction.
- the brackets 22 are mounted on the component 10, in particular at Po ⁇ sition of the external electrodes 13a, 13b and moved along in verti ⁇ Kaler direction to the component 10, with the clips 22 and in particular their ends move radially outward ⁇ SEN. As soon as the clamps 22 have reached their end position and at least partially surround the outer region of the respective outer electrode 13a, 13b, the clamps 22 have become in the radially inward direction and the contact element 17 is clipped (Figure 6).
- an insulating element or an insulator 16 is arranged between the contact element 17 and the central electrode 12.
- the insulator 16 may comprise plastic, for example. With the aid of the insulator 16, a rollover of the contact element 17 to the centra ⁇ le electrode 12 can be prevented.
- an insulating ele ment ⁇ 14 preferably a ceramic is formed.
- the isolie ⁇ - generating element 14 is disc-shaped.
- the insulating element 14 is, for example, a ceramic disk.
- the ceramic may comprise alumina.
- the device 10 is further surrounded by an insulating sheath 18.
- the individual components of the component 10 are - with the exception of the connection elements IIa, IIb, 11c - all ⁇ together within the insulating sheath 18 is arranged.
- the contact elements IIa, IIb and 11c penetrate the shell 18 at predetermined locations, as shown in FIG.
- the insulating sheath preferably has a powder coating.
- the insulating sheath 18 serves the electrical and mechanical insulation of the device 10 to the outside.
- the component 10 is designed to effectively compensate for overvoltages occurring. In particular, it is designed to withstand loads of several kA 8/20 ys per side.
- the device 10 combines those shown in Figure 1 compo nents ⁇ Studentsnapsskompenstechnik for the first time in a single component. By integration of the individual components into a component, the component 10 is easy to handle. Furthermore, it is characterized by its space-saving design and its easy installation.
- the device has for example a length or horizon ⁇ tale expansion of less than or equal to 3 cm, for example 2.8 cm.
- the height or vertical extent of the Bauele ⁇ ments with connection elements IIa, IIb, 11c is preferential ⁇ less than or equal 2.5 cm, for example 2.2 cm. Without connecting elements IIa, IIb, 11c, the height amounts to preferably less than 1.5 cm, for example 1 cm. Of course , a greater length and height for the component is also conceivable. For example, the length may be less than or equal to 5 cm.
- the height without connecting elements IIa, IIb, 11c may be, for example, less than or equal to 2 cm.
- Figures 3 and 4 show a sectional view and a perspective view of a portion of the device 10 according to Figure 2.
- the figures show the Abieiter 6 with the two outer electrodes 13a, 13b, the central electrode 12 and the insulating elements 14. Between the outer electrodes 13a , 13b, the gas-filled cavity 20 is ⁇ forms.
- the Abieiter 6 is cylindrical ( Figure 4).
- the Abieiter 16 is mirror-symmetrical about a horizontal axis 15 constructed ( Figure 3).
- the Abieiter 16 mirror ⁇ symmetrically about a vertical axis 21 constructed ( Figure 3).
- the Abieiter 16 has a length of less than or equal to 1.5 cm.
- the Abieiter 6 has a length of 1.1 cm.
- the Abieiter 6 has a diameter of less than 1 cm, for example, 0.9 cm.
- Figures 5 and 6 show a sectional view and a perspective view of the device 10 for protection against overvoltage according to another embodiment.
- the component is shown without the insulating sheath 18 for reasons of clarity.
- the component 10 in this exemplary embodiment is mirror-symmetrical about the horizontal axis 15 and about the vertical axis 21 (FIG. 5).
- the vertical distance between the contact element 17 and the central electrode 12 is increased in this exemplary embodiment.
- the vertical From ⁇ stand is for example 2 mm. Due to the increased from ⁇ stand between the contact element 17 and the central elec- rode 12 voltages up to 2 kV can be effectively compensated.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016113267.5A DE102016113267A1 (de) | 2016-07-19 | 2016-07-19 | Bauelement zum Schutz vor Überspannungen und Verwendung eines Bauelements zum Schutz vor Überspannungen |
PCT/EP2017/067120 WO2018015183A1 (de) | 2016-07-19 | 2017-07-07 | Bauelement zum schutz vor überspannungen und desen verwendung mit zwei varistoren und einem ableiter in einem einzigen bauteil |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3488450A1 true EP3488450A1 (de) | 2019-05-29 |
Family
ID=59366412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17740698.0A Ceased EP3488450A1 (de) | 2016-07-19 | 2017-07-07 | Bauelement zum schutz vor überspannungen und dessen verwendung mit zwei varistoren und einem ableiter in einem einzigen bauteil |
Country Status (6)
Country | Link |
---|---|
US (1) | US20190244732A1 (de) |
EP (1) | EP3488450A1 (de) |
JP (1) | JP2019527932A (de) |
CN (1) | CN109564806A (de) |
DE (1) | DE102016113267A1 (de) |
WO (1) | WO2018015183A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019135206B4 (de) * | 2019-12-19 | 2022-01-27 | Karl Storz Se & Co. Kg | Überspannungsschutzvorrichtung sowie Netzteil |
JP7303139B2 (ja) * | 2020-03-06 | 2023-07-04 | 株式会社日立製作所 | 電力変換システム |
TWI729966B (zh) * | 2020-12-11 | 2021-06-01 | 四零四科技股份有限公司 | 電源管理系統 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2911109C3 (de) * | 1979-03-21 | 1982-03-04 | Siemens AG, 1000 Berlin und 8000 München | Überspannungsableiter für mehrere gemeinsam abzusichernde Leitungen |
DE3606287A1 (de) * | 1986-02-27 | 1987-09-03 | Dehn & Soehne | Ueberspannungsschutzanordnung |
DE19647748A1 (de) * | 1995-11-29 | 1997-06-05 | Siemens Ag | Gasgefüllter Überspannungsableiter |
DE19856939A1 (de) * | 1998-12-10 | 2000-06-15 | Bettermann Obo Gmbh & Co Kg | Schaltungsanordnung zum Schutz von elektrischen Installationen gegen Überspannungsereignisse |
JP3149085U (ja) * | 2008-12-25 | 2009-03-12 | 岡谷電機産業株式会社 | サージ吸収器 |
DE202010017932U1 (de) * | 2010-04-20 | 2013-06-05 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzelement |
CN104952570A (zh) * | 2014-03-27 | 2015-09-30 | 深圳市槟城电子有限公司 | 一种集成气体放电管的压敏电阻 |
CN204668940U (zh) * | 2015-05-19 | 2015-09-23 | 菲尼克斯亚太电气(南京)有限公司 | 电路板用小型防浪涌保护器 |
DE202016001937U1 (de) * | 2016-03-23 | 2016-07-11 | DEHN + SÖHNE GmbH + Co. KG. | Überspannungsschutzanordnung mit mehreren, auf einer ersten Seite einer n-eckigen Trägerplatte angeordneten, scheibenförmigen Varistoren |
-
2016
- 2016-07-19 DE DE102016113267.5A patent/DE102016113267A1/de not_active Ceased
-
2017
- 2017-07-07 WO PCT/EP2017/067120 patent/WO2018015183A1/de unknown
- 2017-07-07 US US16/319,222 patent/US20190244732A1/en not_active Abandoned
- 2017-07-07 JP JP2019502617A patent/JP2019527932A/ja active Pending
- 2017-07-07 EP EP17740698.0A patent/EP3488450A1/de not_active Ceased
- 2017-07-07 CN CN201780044410.8A patent/CN109564806A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN109564806A (zh) | 2019-04-02 |
JP2019527932A (ja) | 2019-10-03 |
DE102016113267A1 (de) | 2018-01-25 |
US20190244732A1 (en) | 2019-08-08 |
WO2018015183A1 (de) | 2018-01-25 |
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