EP3417518A1 - Overvoltage protection device - Google Patents
Overvoltage protection deviceInfo
- Publication number
- EP3417518A1 EP3417518A1 EP17706434.2A EP17706434A EP3417518A1 EP 3417518 A1 EP3417518 A1 EP 3417518A1 EP 17706434 A EP17706434 A EP 17706434A EP 3417518 A1 EP3417518 A1 EP 3417518A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- overvoltage protection
- üse
- protection device
- resistor
- üsei
- 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.)
- Granted
Links
Classifications
-
- 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
- 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
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
-
- 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
- H01T4/06—Mounting arrangements for a plurality of overvoltage 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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
-
- 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
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
- H01T4/12—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
-
- 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
Definitions
- the invention relates to an overvoltage protection device.
- So-called single-stage overvoltage protection devices have only a single overvoltage protection device, e.g. a gas-filled overvoltage arrester (GDT - gas discharge tube).
- GDT - gas discharge tube This has a high Abieitconf, however, the level of protection is high, so that smaller overvoltages are not dissipated and can thus lead to damage to the actually protected electrical systems following.
- TVS - Transient Voltage Suppressor TVS - Transient Voltage Suppressor
- GDT - gas discharge tube gas-filled surge arrester
- a TVS diode may have a drain capacity of a few 100 amps of pulse current while a gas-filled gas discharge tube (GDT) may have a drain capacity of a few kA.
- GDT Gas-filled gas discharge tube
- This combination is made possible by commutation resistors connected between the gas-filled gas discharge tube (GDT) and the TVS (Transient Voltage Suppressor) diode.
- SMD resistors As commutation resistors, they are not sufficiently suitable for carrying higher powers without being thermally affected. In particular, these SMD resistors often have a high price and also show significant problems in stability under thermal or electrical stress.
- FIG. 1 shows a first schematic circuit diagram of embodiments according to the invention
- FIG. 2 shows a schematized principle illustration of embodiments according to the invention
- FIG. 1 shows a first schematic circuit diagram of embodiments according to the invention
- FIG. 2 shows a schematized principle illustration of embodiments according to the invention
- FIG. 1 shows a first schematic circuit diagram of embodiments according to the invention
- FIG. 2 shows a schematized principle illustration of embodiments according to the invention
- FIGS. 1 and 2 show an overvoltage protection device 1.
- the overvoltage protection device 1 has a housing G, a first overvoltage protection device USE ! and a second
- Overvoltage protection device USE 2 on
- the first overvoltage protection device ÜSEi has a first terminal A ÜSEi and a second terminal A 2 -SEEi.
- the second overvoltage protection device ÜSE 2 has a first terminal A ÜSE 2 and a second terminal A 2 -ÜSE 2 .
- the first overvoltage protection device ÜSEi and the second overvoltage protection device ÜSE 2 are selected from a group comprising TVS diode, varistor, gas-filled surge arrester, spark gap.
- the first overvoltage protection device ÜSEi and the second overvoltage protection device USE 2 are different, ie the first overvoltage protection device ÜSE !
- a GDT is the second overvoltage protection device USE 2, for example, a varistor.
- the respective first connections A are ÜSE ! the first overvoltage protection device ÜSE ! and A ÜSE 2 of the second overvoltage protection USE 2 and / or second terminals A 2 ⁇ SE 1; A 2 - ÜSE 2 connected via at least one resistor R.
- a resistor R may be arranged between A ÜSEi and A ÜSE 2 .
- a further resistor R of the same or different electrical size between A 2 -SESEi and A 2 -SEE 2 . To distinguish the latter resistor is shown dotted.
- the resistor R is formed of an organic electrically conductive material.
- Organic electrically conductive materials can be of different nature, e.g. have intrinsically conductive polymers, or be improved plastic materials by carbon black or other conductive materials in their conductivity.
- polyaniline or polyaniline may be blended with admixtures of other inorganic materials, e.g. ZnO or other organic materials find use.
- resistors can be more suitable
- the presented circuit arrangement is multi-level. However, this multistage is not limited to two stages but may, as indicated in FIG. 1, also have 3 or more stages.
- a TVS diode is listed as overvoltage protection USE 3 .
- the side IN forms the unprotected side while the side OUT forms the protected side.
- the resistor R may be formed in the housing G by an injection molding method, a poly-reaction, that is, a polymerization reaction, a polycondensation reaction, a polyaddition reaction, or a rapid prototyping method, without being limited thereto.
- metallic moldings S which can be used with the invention.
- These metallic moldings S are used for electrical contacting of the resistor R.
- they Preferably, they have on the side which is to contact the resistor R, a large surface area, e.g. is given by a variety of gears. These gears may be surrounded during the manufacture of base material of the resistor R and form a contact around them.
- the contact may also include a mechanical holding function.
- a backup function may also be provided, so that, for example, at an inadmissible heating of an overvoltage protection device, which is connected to a metallic molding, this is separated.
- the metallic moldings S can also be designed so that they make contact with the overvoltage protection device 1 to the outside, i. a device connection e.g. to a conductor L, provide.
- the metallic molded parts S are part of a leadframe which is used during production and subsequently processed further, e.g. by separating and / or bending individual sections of a leadframe.
- the base material of the resistors allows almost any structuring, which are essentially limited by the processing, nevertheless it may be useful for Feinjust réelle the properties of the resistors R later postpone.
- This is possible, for example, by structuring. That is, after the resistor R is created, for example, as a result of a measurement, an increase in resistance may be desired. This can be achieved by targeted (structured) removal, eg by laser.
- suitable structuring means are, for example, milling, grinding, stamping, embossing, chemical and / or physical etching. That is, in contrast to previous techniques, a real fine adjustment can now be made, so that the parameters can be set specifically. Thus even more precise overvoltage protection devices with further lowered protection levels can be made available.
- a housing G is provided.
- metallic moldings S for providing contacts e.g. introduced in the form of a leadframe.
- one or more resistors R is introduced, wherein the resistance R is introduced between introduced metallic shaped parts (S),
- Resistance value can also be monitored and specifically influenced during insertion.
- a first overvoltage protection device ÜSEi and a second overvoltage protection device PTS 2 are introduced and / or connected to, said first overvoltage protection device ÜSEi and the second overvoltage protection device PTS 2 are selected from a group comprising TVS diode, varistor, gas-filled surge arrester, the spark gap, wherein the first overvoltage protection device USEi is different from the second overvoltage protection device USE 2.
- the first overvoltage protection device ÜSE ! a first connection A ÜSE ! and a second connection A 2 -SEE ! and the second overvoltage protection device PTS 2 also has a first terminal A and a second terminal PTS 2 A 2 -ÜSE 2, wherein the respective first terminals A ⁇ ⁇ USE A ÜSE 2 and / or second ports A 2 -SEE ; A 2 -SEE 2 are connected via at least one corresponding resistor R.
- the steps need not be provided in the order presented above.
- the joining step comprises at least one step selected from the group comprising reflow soldering, laser soldering, wave soldering, selective soldering, welding, injection into suitably shaped receptacles.
- a step of patterning the resistor (R) for resistive matching may be provided as previously described.
- the structuring step may comprise at least one step selected from the group consisting of milling, grinding, laser cutting, stamping, embossing, etching.
- resistors which can be connected by means of the resistors thus produced are not limited, so that e.g. virtually any resistance value needed in an electrical appliance is created by means of the present invention and coupled to respective building components, e.g. Displays or telecommunications devices can be connected.
- individual molded parts S as well as already connected components such as overvoltage protection elements ÜSEi, ÜSE 2 , ÜSE 3 can be prefabricated as a leadframe. Such a lead frame can then be inserted into a housing G and possibly fixed there. Subsequently, the resistors R are introduced and removed the unnecessary parts of the lead frame.
- resistors R made of conductive plastic are designed such that, in the case of a large areal extent, they connect the individual components ensure and thus the power management function, which otherwise take the tracks of the circuit board, can comply with.
- a temperature-stable (reflow soldering suitable) housing G is provided that preferably already has contours for receiving the moldings S.
- the molded parts S can have a plurality of strips (fingers) for increasing the effective contact area of the molded part S with the conductive plastic.
- the invention By means of the invention, a better heat dissipation is achieved by larger area. As a result, a higher impulse capacity can be provided by a larger volume. In addition, can even be dispensed with a circuit board. Due to the simple construction, even high quantities are easily possible, so that a further cost reduction could be achieved. It is particularly advantageous that the invention is insensitive to mechanical stress in the longitudinal direction (bending), whereby the long-term stability increases.
- the invention can also be found in components of the MCR technology (measuring control rules) use.
- components ÜSE ⁇ ÜSE 2 , ÜSE 3 are kept suitable, wherein the components are already provided with moldings S and then the moldings S are encapsulated first on one side and then on the other side (eg by rotating the assembly) with a resistance material R.
- Overvoltage protection device 1 Housing G Conductor L
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016202522.8A DE102016202522A1 (en) | 2016-02-18 | 2016-02-18 | Surge protection device |
PCT/EP2017/053591 WO2017140830A1 (en) | 2016-02-18 | 2017-02-17 | Overvoltage protection device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3417518A1 true EP3417518A1 (en) | 2018-12-26 |
EP3417518B1 EP3417518B1 (en) | 2020-11-04 |
Family
ID=58098604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17706434.2A Active EP3417518B1 (en) | 2016-02-18 | 2017-02-17 | Overvoltage protection device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3417518B1 (en) |
CN (1) | CN109075535B (en) |
DE (1) | DE102016202522A1 (en) |
WO (1) | WO2017140830A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3094148B1 (en) * | 2019-03-20 | 2021-04-16 | Citel | Surge protection device |
CN110086158B (en) * | 2019-05-24 | 2020-12-22 | 武汉晴川学院 | Overvoltage protection device for electronic circuit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4586104A (en) * | 1983-12-12 | 1986-04-29 | Rit Research Corp. | Passive overvoltage protection devices, especially for protection of computer equipment connected to data lines |
US4683514A (en) * | 1984-10-03 | 1987-07-28 | The M-O Valve Company Limited | Surge voltage protective circuit arrangements |
JPH0969416A (en) * | 1995-08-31 | 1997-03-11 | Tdk Corp | Organic resistor with positive temperature characteristics |
CN2439737Y (en) * | 2000-07-07 | 2001-07-18 | 贵阳诚聚电子有限公司 | Device for preventing house keeping electric appliance from being struck by lightning |
-
2016
- 2016-02-18 DE DE102016202522.8A patent/DE102016202522A1/en not_active Ceased
-
2017
- 2017-02-17 CN CN201780012021.7A patent/CN109075535B/en active Active
- 2017-02-17 EP EP17706434.2A patent/EP3417518B1/en active Active
- 2017-02-17 WO PCT/EP2017/053591 patent/WO2017140830A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN109075535B (en) | 2020-04-14 |
DE102016202522A1 (en) | 2017-08-24 |
EP3417518B1 (en) | 2020-11-04 |
WO2017140830A1 (en) | 2017-08-24 |
CN109075535A (en) | 2018-12-21 |
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