EP0727091A1 - Überspannungsschutzvorrichtung - Google Patents
ÜberspannungsschutzvorrichtungInfo
- Publication number
- EP0727091A1 EP0727091A1 EP94921523A EP94921523A EP0727091A1 EP 0727091 A1 EP0727091 A1 EP 0727091A1 EP 94921523 A EP94921523 A EP 94921523A EP 94921523 A EP94921523 A EP 94921523A EP 0727091 A1 EP0727091 A1 EP 0727091A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- rocker
- plunger
- web
- overvoltage protection
- 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
- 239000011810 insulating material Substances 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 238000004382 potting Methods 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000013459 approach Methods 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000005266 casting Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 description 3
- WYFCZWSWFGJODV-MIANJLSGSA-N 4-[[(1s)-2-[(e)-3-[3-chloro-2-fluoro-6-(tetrazol-1-yl)phenyl]prop-2-enoyl]-5-(4-methyl-2-oxopiperazin-1-yl)-3,4-dihydro-1h-isoquinoline-1-carbonyl]amino]benzoic acid Chemical compound O=C1CN(C)CCN1C1=CC=CC2=C1CCN(C(=O)\C=C\C=1C(=CC=C(Cl)C=1F)N1N=NN=C1)[C@@H]2C(=O)NC1=CC=C(C(O)=O)C=C1 WYFCZWSWFGJODV-MIANJLSGSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 210000002105 tongue Anatomy 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/10—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
- H01H2037/762—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts
- H01H2037/763—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts the spring being a blade spring
Definitions
- the invention relates to an overvoltage protection device with two or more protective elements, which are accommodated in a housing and are designed as varios, whose electrodes on the ground line side are electrically conductively connected to one another by a strip with a contact piece, the other electrodes on the mains side being connected in series the protective elements connected disconnection devices are connected to contact pieces.
- the invention is based on the object of improving known devices of the type mentioned at the beginning and structurally simplifying them without the protective properties being adversely affected.
- FIG. 2 shows the combination of block arrester and device base of FIG. 1 from the side
- Fig. 14 is a side view of the rocker.
- Top”, “Bottom”, “Front”, “Back” refer to the orientation of the device base 1 and the insert element 2 which is locked with it, in which, for example, an overlap voltage protection device is housed.
- the device base 1 is essentially U-shaped in cross-section (FIG. 2), a device consisting of a hook-like attachment 3 and a spring-loaded snap slide 4 being provided on its rear side ("rear") which the device base 1, as is known per se, can be snapped onto a mounting rail mounted, for example, in a control cabinet.
- connection terminals 6 for three outer conductors and a connection terminal 6 'for the neutral conductor are accommodated, the design of which can be seen in more detail in FIGS. 5 and 6.
- connection terminal 8 for the earth line and two auxiliary contact terminals 9 and 10 for an integrated auxiliary switch (make contact) are accommodated.
- each contact terminal 6, 6 'and 8 is a contact angle 11 with which a resilient contact 12 is connected.
- the contacts 12 protrude from the legs 5 and 7 into the web of the device base 1.
- the free ends of the contacts 12 are moved forward by contact springs 13, ie into the space between the two legs 5 and 7 of the device base 1 pressed.
- a leaf spring 17 is connected to the auxiliary contact terminal 9, which can be bent in a manner to be described in more detail below by an actuating pin 37 in contact with the auxiliary contact terminal 10, so that the auxiliary contact terminals 9 and 10 are electrically conductively connected to one another.
- the contacts 12 are accessible through openings 18 in the forward-facing middle part 19 of the housing cover 20 which closes the device base 1 on the inside (FIGS. 3 and 4).
- Handle recesses 23 and 24 are located in the wall parts 21, 22 of the housing cover 20 of the device base 1, which are located above and below molded, which at their lowest point in a projection 25, which is formed undercut towards the web of the device base 1 (FIG. 2).
- the insert element 2 has a housing comprising a cover 30 and a trough 31.
- a contact 33 and four contacts 34 protrude through the bottom of the housing cover 30 in the position of use, which contacts through the openings 18 in the wall part 19 of the housing cover 20 of the device base 1 the contacts 12 of the contact terminal 8 for the ground line, the contacts 12 of the three contact terminals 6 for the outer conductor and the contact terminal 6 'for the neutral conductor are present when the insert element 2, as shown in FIGS. 1 and 2, with the base 1 is locked.
- a projecting rib 35 is provided, which engages in the slot 27 when the insert element 2 is inserted in the device base 1, so that only a correct mounting of the insert element 2 on the device base 1 is possible.
- the actuating pin 37 which interacts with the contact spring 17 in the device base 1 in a manner to be described, projects through an opening 36 in the region of the upper edge of the trough 31 of the housing of the insert element 2.
- the forwardly pointing bottom of the trough 31 of the housing of the insert element 2 is also provided with two openings 38 closed by plastic domes for test contacts and a viewing window 39 for a trigger indicator 90, 91.
- each snap arm 40 On the cover 30 of the housing of the insert element 2, two snap arms 40 are provided which are made in one piece with it, which engage in corresponding recesses in the side walls of the trough 31 of the housing of the insert element 2.
- Each snap arm 40 carries an outwardly facing actuating projection 41 and two likewise outwardly facing latching lugs 42, which engage behind the latching projections 25 of the device base 1 when the insert element 2 is locked with the device base 1, as shown in FIG. 2.
- the actuating projections 41 are easily accessible thanks to the recessed handles 23, 24.
- the recessed handles 23, 24 in the installation position ie when the combination of device base 1 and insert element 2 is mounted in a switch box, are covered by a panel, ie are not readily accessible. Unauthorized handling is at least hampered.
- tongues 45 are formed on the cover 30, which at their free ends have locking projections (not visible) which point inwards.
- the tongues 45 are received in grooves 46 in the outer sides of the two longitudinal walls of the tub 31, their latching projections engaging in holes 47 when the lid 30 is placed on the tub 31.
- the holes 47 are provided at the rear ends of the grooves 46.
- the inner structure of the insert element 2 designed as a surge protection device is described below with reference to FIGS. 9 to 14.
- the same four protective elements 51 in the form of metal oxide varistors are accommodated in the trough 31 in a receiving space which is separated on one side by a wall 50.
- Each protective element 51 is inserted into its own receiving space, the receiving spaces being separated from one another by partitions 52.
- the electrodes 54 are connected in an electrically conductive manner to a common conductor rail 58 which leads into the contact 33 (see FIG. 9).
- the electrodes 54 form the "ground side" of the protective elements 51.
- Each separating device consists of a plunger in the form of a tubular rivet 60, which is soldered to a flag of the electrodes 53 by means of soft solder 61.
- An insulating piece 100 is fixed to an angled part 63 of the electrode 53, a sleeve-shaped part of the insulating piece 100 serving as a guide for the tubular rivet 60 and slidingly receiving the tubular rivet 60 therein.
- a helical compression spring 62 is inserted over the insulating piece 100 as a release spring and is inserted between the widened end of the insulating piece 100 fastened to the angled part 63 of the electrode 53 and a contact plate 64 with pretension.
- one end of the return spring 62 is electrically isolated from part 63 of the lug of the electrode 53.
- the contact plate 64 lies with its side facing away from the helical compression spring 62 against a collar 65 provided at the end of the tubular rivet 60.
- a flexible conductor cable 66 is connected to the contact plate 64 in an electrically conductive manner, e.g. welded, which leads to the respective contact 34.
- a rocker is also pivotable in the insert element 2 70 stored, which is shown in Figs. 13 and 14 by itself.
- the rocker 70 is formed as an essentially U-shaped bracket and has a bearing pin 73, 74 on each of its two legs 71, 72.
- the bearing pins 73, 74 are in bearing mounts 75, 76 on the narrow walls of the tub 31 an axis 77 'pivotally mounted.
- lugs 78 are provided, which are assigned with their hemispherically curved front sides 79 to the end of the tubular rivet 60 having the collar 65.
- the aforementioned actuating pin 37 is also slidably mounted.
- the actuating pin 37 has a thickened end 80 which engages in a recess 81 on the end of the web 77 of the rocker 70 which carries the longer leg 72.
- a return spring 83 is inserted, which holds the actuating pin 37 in contact with the web 77 of the rocker 70.
- solder joint 61 which connects the tubular rivet 60 to the angled part 63 of the lug of the electrode 53, is brought to a certain temperature, this solder joint 61 opens and the tubular rivet 60 is driven by the helical compression spring (release spring) 62. moved away from the angled part 63 of the electrode 53 and guided in the insulating piece 100 during this movement.
- This insulating piece 100 also ensures the insulation between the angled part 63 of the electrode 53 and the release spring 62 after a release, ie a disconnection process.
- this disconnection process the varistor 51 from Mesh
- an air gap of, for example, 5 mm is created between the angled part 63 of the electrode 53 and the tubular rivet 60, so that the necessary dielectric strength is ensured.
- the free end of the longer leg 72 of the rocker 70 serves as a display device for all pole sections of the overvoltage protection device.
- Use position facing the bottom of the tub 31, is either the green colored end face 90 of the leg 72 or the red colored end face 91 of a pointer 92, which can be seen from Fig. 14 or 12, with the free end of the longer leg 74 of the rocker 70 is locked, visible.
- the display which is visible in the viewing window 39 changes from green
- test contacts 95 are provided, which are connected to an outer conductor (the upper test contact 95 in FIG. 10) or to earth (the lower test contact 95 in FIG. 10).
- the test contacts 95 are, as mentioned, accessible through the openings 38 closed with plastic caps, which are also provided in the bottom of the tub 31.
- the invention can be represented as follows, for example:
- An overvoltage protection device 2 has several in one
- Varistors 51 housed in the housing whose electrodes on the ground line side are connected in an electrically conductive manner via a strip 58. are connected.
- the network-side electrodes 53 of the variators are connected to contact pieces 34 via disconnection devices 60, 61.
- the separating devices consist of a plunger designed as a tubular rivet 60, which is connected to the electrodes 53 via a soft soldering point 61.
- the plunger 61 is slidably received in a guide 100 made of insulating material.
- Each of the plungers 60 cooperates with one of its ends with a rocker (70) which is common to all disconnection devices and which can be pivoted in the overvoltage protection device.
- the rocker 70 In the event of tripping, ie when one of the varistors 51 is overloaded, the soft solder connection 61 and the plunger 60 concerned pivoted, driven by a tripping spring 62, the rocker 70, which in turn displaces an actuating pin 37, so that further switching operations are triggered.
- the rocker 70 also carries a display device 90, 91 which is visible through a window in the housing of the overvoltage protection device (2), so that it can be seen from the outside that one of the disconnection devices 60, 61 has triggered.
- the fact that a single rocker 70 is assigned to all disconnection devices results in a simple construction of the overvoltage protection device.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Emergency Protection Circuit Devices (AREA)
- Thermistors And Varistors (AREA)
- Fuses (AREA)
- Amplifiers (AREA)
- Valve Device For Special Equipments (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2201/93 | 1993-11-02 | ||
AT0220193A AT400781B (de) | 1993-11-02 | 1993-11-02 | Überspannungsschutzvorrichtung |
PCT/AT1994/000094 WO1995012893A1 (de) | 1993-11-02 | 1994-07-15 | Überspannungsschutzvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0727091A1 true EP0727091A1 (de) | 1996-08-21 |
EP0727091B1 EP0727091B1 (de) | 1997-08-27 |
Family
ID=3529880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94921523A Expired - Lifetime EP0727091B1 (de) | 1993-11-02 | 1994-07-15 | Überspannungsschutzvorrichtung |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0727091B1 (de) |
AT (2) | AT400781B (de) |
AU (1) | AU677682B2 (de) |
CZ (1) | CZ284812B6 (de) |
DE (1) | DE59403893D1 (de) |
DK (1) | DK0727091T3 (de) |
ES (1) | ES2109003T3 (de) |
HU (1) | HU215889B (de) |
NO (1) | NO308818B1 (de) |
PL (1) | PL174999B1 (de) |
WO (1) | WO1995012893A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008026555A1 (de) | 2008-06-03 | 2009-12-10 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsschutzgerät mit thermischer Abtrennvorrichtung |
US8526159B2 (en) | 2008-08-22 | 2013-09-03 | Dehn + Söhne Gmbh + Co. Kg | Surge protector having a thermal separating device |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT406207B (de) * | 1997-09-30 | 2000-03-27 | Felten & Guilleaume Ag Oester | Steckbarer überspannungsableiter |
DE10125941B4 (de) * | 2001-03-13 | 2009-09-17 | Dehn + Söhne Gmbh + Co. Kg | Kompaktanordnung für mehrpolige stoßstromfeste Überspannungsableiter |
SI1743346T1 (sl) * | 2004-04-19 | 2011-04-29 | Abb France | Zaščitna naprava pred prenapetostjo s sredstvom za prekinitev obloka |
FR2877154B1 (fr) * | 2004-10-22 | 2006-12-22 | Legrand Sa | Dispositif perfectionne de protection d'appareils electriques contre des surtensions |
DE102006033274A1 (de) * | 2005-02-09 | 2008-01-31 | Dehn + Söhne Gmbh + Co. Kg | Steckbare Gerätekombination zum Schutz vor Überspannungen |
CZ301709B6 (cs) * | 2005-05-04 | 2010-06-02 | Kiwa Spol. S R. O. | Prepetová ochrana |
DE102006038005B4 (de) * | 2006-05-22 | 2009-04-23 | Dehn + Söhne Gmbh + Co. Kg | Anschluss- und Basisteil zur Aufnahme eines steckbaren Überspannungsableiters |
DE102006030570B4 (de) * | 2006-07-03 | 2009-09-17 | Dehn + Söhne Gmbh + Co. Kg | Basisteil zur elektrischen und mechanischen Aufnahme mindestens eines in das Basisteil einsteckbaren Überspannungsableiters |
CN103094013B (zh) * | 2011-11-07 | 2015-12-23 | 施耐德电器工业公司 | 电涌保护器的脱扣机构和电涌保护器 |
AT512255A1 (de) * | 2011-12-09 | 2013-06-15 | Eaton Ind Austria Gmbh | Überspannungsableiter |
DE102020107318B4 (de) | 2020-03-17 | 2023-06-22 | Dehn Se | Überspannungsschutzvorrichtung sowie modulares Überspannungsschutzsystem |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805889C2 (de) * | 1987-10-24 | 1995-11-23 | Bettermann Obo Ohg | Vorrichtung zur Funktionsüberwachung von Überspannungsableitern |
DE4000717C2 (de) * | 1990-01-12 | 1994-12-01 | Kleinhuis Hermann Gmbh | Überspannungsableiter |
DE9010246U1 (de) * | 1990-07-06 | 1990-10-31 | CITEL 2CP S.A., Nederweert | Überspannungsschutzvorrichtung |
DE9305796U1 (de) * | 1993-04-17 | 1993-06-17 | Dehn + Söhne GmbH + Co KG, 8500 Nürnberg | Überspannungsschutzanordnung mit einem in einem Gehäuse untergebrachten Varistor |
-
1993
- 1993-11-02 AT AT0220193A patent/AT400781B/de not_active IP Right Cessation
-
1994
- 1994-07-15 AU AU72369/94A patent/AU677682B2/en not_active Ceased
- 1994-07-15 CZ CZ961286A patent/CZ284812B6/cs not_active IP Right Cessation
- 1994-07-15 HU HU9601164A patent/HU215889B/hu not_active IP Right Cessation
- 1994-07-15 AT AT94921523T patent/ATE157480T1/de not_active IP Right Cessation
- 1994-07-15 ES ES94921523T patent/ES2109003T3/es not_active Expired - Lifetime
- 1994-07-15 DE DE59403893T patent/DE59403893D1/de not_active Expired - Fee Related
- 1994-07-15 PL PL94314226A patent/PL174999B1/pl not_active IP Right Cessation
- 1994-07-15 DK DK94921523.0T patent/DK0727091T3/da active
- 1994-07-15 WO PCT/AT1994/000094 patent/WO1995012893A1/de active IP Right Grant
- 1994-07-15 EP EP94921523A patent/EP0727091B1/de not_active Expired - Lifetime
-
1996
- 1996-05-02 NO NO961788A patent/NO308818B1/no not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9512893A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008026555A1 (de) | 2008-06-03 | 2009-12-10 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsschutzgerät mit thermischer Abtrennvorrichtung |
US8526159B2 (en) | 2008-08-22 | 2013-09-03 | Dehn + Söhne Gmbh + Co. Kg | Surge protector having a thermal separating device |
Also Published As
Publication number | Publication date |
---|---|
DK0727091T3 (da) | 1997-09-29 |
HU9601164D0 (en) | 1996-07-29 |
DE59403893D1 (de) | 1997-10-02 |
NO961788L (no) | 1996-06-24 |
HUT75409A (en) | 1997-05-28 |
AU7236994A (en) | 1995-05-23 |
ATA220193A (de) | 1995-07-15 |
NO961788D0 (no) | 1996-05-02 |
EP0727091B1 (de) | 1997-08-27 |
CZ128696A3 (cs) | 1998-12-16 |
AU677682B2 (en) | 1997-05-01 |
HU215889B (hu) | 1999-03-29 |
AT400781B (de) | 1996-03-25 |
CZ284812B6 (cs) | 1999-03-17 |
ES2109003T3 (es) | 1998-01-01 |
PL314226A1 (en) | 1996-09-02 |
WO1995012893A1 (de) | 1995-05-11 |
NO308818B1 (no) | 2000-10-30 |
ATE157480T1 (de) | 1997-09-15 |
PL174999B1 (pl) | 1998-10-30 |
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