CN1034372C - Protective switch, especially used for protection against unnormal current - Google Patents

Protective switch, especially used for protection against unnormal current Download PDF

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Publication number
CN1034372C
CN1034372C CN93102004.2A CN93102004A CN1034372C CN 1034372 C CN1034372 C CN 1034372C CN 93102004 A CN93102004 A CN 93102004A CN 1034372 C CN1034372 C CN 1034372C
Authority
CN
China
Prior art keywords
armature
dropout
release
clamper
housing
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.)
Expired - Fee Related
Application number
CN93102004.2A
Other languages
Chinese (zh)
Other versions
CN1076055A (en
Inventor
J·赫什贝格
J·巴尔道夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of CN1076055A publication Critical patent/CN1076055A/en
Application granted granted Critical
Publication of CN1034372C publication Critical patent/CN1034372C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H2071/328—Electromagnetic mechanisms having permanently magnetised part using a spring for having minimal force on armature while maximal force on trip pin
    • 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
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H2083/205—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition having shunt or UVR tripping device with integrated mechanical energy accumulator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/325—Housings, assembly or disposition of different elements in the housing
    • H01H71/326—Sealed housings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/327—Manufacturing or calibrating methods, e.g. air gap treatments

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

Said device operates with an armature holder (2) which is guided on the trip-device housing (1) and holds a small armature plate (3) which is retained by it, in a direction which is parallel to the pole surface (4) of the magnet. The armature holder is subject to the influence of a trip spring (6). The armature holder and a tripping lever (5) are connected to one another, like a driver, in such a manner that the tripping lever can be moved further once the armature holder is resting against a stop (7). This further movement can likewise continue as far as a stop for the tripping lever.

Description

The locking magnet release that protection switch, particularly failure current protection switch are used
The present invention relates to a kind ofly to be used for protection switch, especially for the locking magnet release of failure current protection switch; this locking magnet release carries out work by an armature clamper of guiding on the release housing, this armature clamper clamping an admittance thereon, with the armature card of the pole-face parallel alignment of magnet piece.By this be not with the inside structure of the magnet plate work of swing, can produce particularly advantageous operating characteristic.
But then, armature card and pole-face parallel alignment also demonstrate the shortcoming part in machinery and configuration aspects highlightedly.For example, the tolerance in the control air crack works, and therefore has influence on tripping characteristic.In practice, even if the side has the pivoted armature magnet of pivot, the stroke of also will threading off in its manufacture process and after making is usually proofreaied and correct.
The objective of the invention is to develop a kind of follow-on locking magnet release, this locking magnet release carries out work by an armature clamper, this armature clamper clamping an admittance thereon, with the armature card of the pole-face parallel alignment of magnet piece, and this armature clamper is insensitive to tolerance.
The technical scheme that realizes above-mentioned purpose is, in the locking magnet release of aforementioned type, be right after the back, bonding land that links to each other with the pawl juncture at dropout lever and armature clamper, position on reclining corresponding to the backstop of armature clamper and release housing, be provided with a slide engagement means, this slide engagement means is stretched over till the backstop of dropout lever.It is promptly enough that a kind of like this locking magnet release has little control air crack, promptly has only little spacing between armature card and the pole-face.Place the armature clamper by pressing certain position, can limit this spacing in advance, and considering that for economy inevitable tolerance is included within the zone of continuation campaign of dropout lever.The degree of above-mentioned continuation campaign then can be relevant with tolerance, but tolerance no longer adds among the control air crack.
The housing face can be arranged to the backstop of armature clamper in inner face or outside, and the housing face can be adjusted to very little tolerance easily.
Design of the present invention can obtain implementing easily, its implementing measure is, after the armature clamper was run into backstop, the dropout lever can continue motion against the armature clamper on a sliding surface, particularly continued to move under the situation that a seamed edge slides along sliding surface.The pawl of dropout lever is most advanced and sophisticated before arriving backstop abuts in motion together with the platform plane of stretching boss in the armature clamper in the bonding land.For this reason, at first on the platform-like stretching, extension face of dropout lever or armature clamper, repair out predetermined seamed edge.If the armature clamper is run on the backstop of establishing for it in motion process, the lever of then threading off can for example have the sliding surface slip of constant distance along a pivot with the dropout lever.In this scope, the motion of dropout lever breaks away from the armature clamper, does not make the landing of armature clamper.The dropout lever forms a hook position of establishing for the dropout spring on respect to an arm of its pivot, this hook position makes the dropout spring leave pivot on the direction that strengthens lever arm by disconnecting motion, another hook position dropout spring and housing then maintains static, the torque that affacts on the dropout lever can roughly keep constant, and is irrelevant with the relaxation degree of spring.A kind of structure has like this become known (DE-C-2059052).
Basically be designed to a clavate structure and have one base plate is installed as the armature clamper, armature card is hung on this installation base plate, can draw the locking magnet release of a simple structure with a cramp frame gripping member.Above-mentioned cramp frame gripping member should advantageously make armature card and install between the base plate by its configuration design and/or by its size design and remain with clearance.A kind of like this armature card suspended structure that has clearance has become known (DE-B-3332860).
If the release housing also has in order to by admitting corresponding guiding device on the magnet piece to hold the guiding device that is designed to block magnet piece, then can promote simplification and the accurate dropout performance made.Along guiding device slip into can be advantageously magnet piece be positioned at given position in the housing along guiding device by predetermined positioner on.
Carry out dustless sealing as the release housing, can promote the accuracy and the lasting reliability of locking magnet release.For this reason, the reach through hole established of the lead-out wire for the dropout winding of magnet arrangement of release housing is favourable by being located at that sealing device on the lead-out wire or on housing seals up.By lead-out wire being designed to the mechanization that pin configuration helps processing and being particularly conducive to processing.These pins can be inlaid among the megohmite insulant of coil rack of dropout winding, and megohmite insulant constitutes a sealing plug.The sealing plug can advantageously be made of sealing substance by suitable shaping.The dropout design of Windings is become can be inserted on the side thigh that is located at two permanent magnets between the side thigh, and this will further help the mechanization manufacturing.
Below by the embodiment sets forth in detail the present invention who schematically illustrates in the accompanying drawing, in the accompanying drawings,
Fig. 1 is an end view of opening the locking magnet release under the situation at the release housing of hull shape, armature card and magnet is shown fits, and promptly is in "on" position;
Fig. 2 is the partial view of locking magnet release shown in Figure 1, the armature clamper is shown is close on its backstop;
Fig. 3 is the partial view of locking magnet release shown in Figure 2, and it is moving to illustrate that the dropout lever is close to the follow-up reforwarding of its backstop at the armature clamper;
Fig. 4 is the synergistic perspective view that is described in locational armature clamper shown in Figure 2 and dropout lever;
Fig. 5 is an end view of opening another embodiment of the locking magnet release under the situation at the release housing of hull shape;
Fig. 6 is the partial view that locking magnet release shown in Figure 5 is in operating position shown in Figure 2;
Fig. 7 is the partial view that locking magnet release shown in Figure 5 is in operating position shown in Figure 3;
Fig. 8 describes the armature clamper of locking magnet release shown in Figure 5 and the perspective view that the dropout lever is in the co-operating of operating position shown in Figure 6;
Fig. 9 is the perspective view of an embodiment that is hung with the armature clamper of armature card on it;
The decomposition view of Figure 10 armature clamper shown in Figure 9;
Figure 11 illustrates a kind of easily manufactured and perspective view embodiment that magnet accurately is provided with in the release housing;
Figure 12 is the exploded view of structure shown in Figure 11;
Figure 13 is the view of the sealing ejector that passes the release housing of the lead-out wire of explanation dropout winding;
Figure 14 is the perspective view that has the magnet dropout winding, in the release housing of packing into under the situation of taking off of the cover plate at the release housing;
Figure 15 is the exploded view of structure shown in Figure 14.
Locking magnet release among the embodiment shown in Figure 1 carries out work by the armature clamper 2 of a guiding on release housing 1.These armature clamper 2 clampings an armature card 3 and are made armature card 3 be parallel to pole-face 4 and aim at.This locking magnet release has the dropout lever 5 of spring 6 effects that stand to thread off.Armature clamper 2 links to each other with the pawl juncture with dropout lever 5.As shown in Figures 2 and 3, after armature clamper 2 leaned on backstop 7, dropout lever 5 can continue motion, for example continued motion from position shown in Figure 2 to position shown in Figure 3.Control air crack between pole-face 4 and armature card 3 can keep very for a short time, and dropout lever 5 then can move to position shown in Figure 3 from position shown in Figure 1 through a big angular range.Therefore, this structure can compensate to reach tolerance mutually with a trip gear collaborative work that is equipped with the comparatively robust of earth terminal.Under the situation in being contained in failure current protection switch, when breaking down electric current, armature card discharges, and when failure current protection switch closed a floodgate again, armature card was fitted on the pole-face 4 of magnet once more.Big motoricity can be avoided occurring in little control air crack between armature card and the magnet, thereby can protect the binding face between armature card and the magnet, and therefore the tripping characteristic of locking magnet release is maintained a good state for a long time.
The housing face can be advantageously used for the backstop 7 of armature clamper 2 in inner face or outside.In the present embodiment, backstop 7 designs are at the guiding position of armature clamper 2.
In the present embodiment, after armature clamper 2 clinged on its backstop 7, the dropout lever can continue motion against armature clamper 2 on a sliding surface.At this moment, seamed edge 9 can slide along sliding surface 8.The pawl of dropout lever is most advanced and sophisticated before arriving backstop abuts in motion together with the platform plane of stretching boss in the armature clamper in the bonding land.This bonding land refers to thread off lever 5 from position shown in Figure 1 to Fig. 2 or the range of movement of position shown in 4.Then, the seamed edge 9 of the terrace part on the armature clamper slides along the sliding surface on the dropout lever 8.In theory, sliding surface 8 should be designed to the cambered surface concentric with the axle center of the lever of threading off, but in practice, makes a plane and also enough be similar to.To the embodiment shown in Figure 8, above-mentioned terrace part is located on the dropout lever and is not located on the armature clamper at Fig. 5.
Dropout lever 5 is being from forming the hook position 11 of a dropout spring 6 with dropout lever 5 on one's body, and this hook position specifically is located on the arm with respect to pivot 10.In disconnecting motion, dropout spring 6 leaves pivot 10 towards the direction that strengthens lever arm, and comparison diagram 1 and Fig. 2 or Fig. 1 and Fig. 3 are just as can be seen.At this moment, the position 12 of dropout spring 6 leaves the axle center or the pivot 10 of dropout lever, thereby the lever arm of dropout spring is increased.Like this, under the state that the dropout spring shrinks, the power of dropout spring reduces to some extent.Therefore, switching force becomes evenly, makes machinery can design more lightly, thereby the magnetic action face of armature card 3 and pole-face 4 are protected.
To another embodiment shown in Figure 8, effect seamed edge 9 is arranged on the dropout lever 5 at Fig. 5.Sliding surface 8 is still on dropout lever 5.In addition, Fig. 5 is equivalent to Fig. 1 to position shown in Figure 4 to position shown in Figure 8.To embodiment shown in Figure 8, also show the working condition of back-moving spring 13 at Fig. 5, in locking magnet release shown in Figure 8, both omitted this back-moving spring, omitted release housing and dropout spring again.
Armature clamper shown in Figure 9 is equivalent to Fig. 1 to armature clamper shown in Figure 4, also is equivalent to Fig. 5 to armature clamper shown in Figure 8 on principle.This is designed to the clavate structure by armature clamper shown in Figure 9 and has one base plate 14 is installed.By a cramp frame gripping member 15 armature card is suspended on the installation base plate 14.Because the configuration and the size design of cramp frame gripping member 15, armature card 3 remains with the clearance of certain limit.In this embodiment, arc gripping member 15 is a W shape structure.This cramp frame gripping member 15 have one in order to the supporting armature card 3 supporting position 17 and in the guide channel 16 of armature card, reserve clearance.From exploded view shown in Figure 10, can see CONSTRUCTED SPECIFICATION.
In the embodiment shown in fig. 11, on release housing 1, also has guiding device 18, in order to the magnet piece 19 of supporting block structure.Magnet piece 19 passes through its corresponding guiding device 20 in inserting release housing 1 time and imports on guiding device 18.When importing, the position of magnet piece 19 is specifically determined by positioner 21.These positioners constitute backstops and when magnet piece imports magnet piece are limited on the assigned position in the housing.The guiding device 18 of magnet piece 19 has a jag to form the head of a riveted joint or welding usefulness, so that magnet piece is fixed on the residing installation site.Magnet piece 19 can be designed to a packaged permanent magnet 22 in a middleware and be clipped between two side thighs of being made by permeability magnetic material, and pole-face 4 is formed on the side thigh.
It is favourable that release housing 1 is made dust-proof sealing structure.Preferably with the lead-out wire 24 of the dropout winding 25 of magnet piece 19 pass the hole by sealing device 26 with respect to the release housing seal.In the embodiment shown, release housing 1 caves inward at the position, hole that passes of lead-out wire 24, so that lead-out wire 24 can be drawn in the bending of the position of the outer surface of release housing according to the bending radius that its material allows.Therefore, pack into the locking magnet release in the equipment and require it to follow other parts of equipment to couple together as need, this locking magnet release then of the present invention will be a kind of very little structure that takes up space.Be designed to pin configuration as lead-out wire 24, work in-process can be obtained stable datum mark.Another measure of simplified structure is that the megohmite insulant of the coil rack of dropout winding 25 constitutes the sealing device 26 of sealing plug form simultaneously, as shown in figure 13.
Dropout winding 25 can advantageously be located on the side thigh, and between middleware and two side thighs a permanent magnet 22 is set.The magnet piece that assembles shown in Figure 15 can be done as a whole pushing in the release housing 1, and at this moment, lead-out wire 24 puts in the reach through hole 27 at the end of release housing 1, closes this reach through hole until sealing device 26.

Claims (9)

1. one kind is used for protection switch; locking magnet release especially for failure current protection switch; this locking magnet release is gone up the armature clamper (2) of guiding by one at release housing (1) and is carried out work; this armature clamper (2) clamping an admittance thereon; armature card (3) with pole-face (4) parallel alignment of magnet; armature clamper (2) links to each other with the pawl juncture with a dropout lever (5) under a dropout spring (6) effect; it is characterized in that; be right after the back, bonding land that links to each other with the pawl juncture at dropout lever (5) and armature clamper (2); position on reclining corresponding to the backstop (7) of armature clamper (2) and release housing (1); be provided with a slide engagement means (9; 8), this slide engagement means is stretched over till the backstop of dropout lever (5).
2. according to the described locking magnet release of claim 1, it is characterized in that, the housing face in inner face or outside as the backstop (7) of armature clamper (2).
3. according to the described locking magnet release of claim 1, it is characterized in that slide engagement means (9,8) is made of with a seamed edge (9) that is positioned on the armature clamper (2) a sliding surface (8) that is positioned on the dropout lever (5).
4. according to the described locking magnet release of claim 1, it is characterized in that, dropout lever (5) forms a hook position (11) of establishing for dropout spring (6) on respect to an arm of its pivot (10), this hook position (11) makes dropout spring (6) leave pivot (10) towards the direction that strengthens lever arm by disconnecting motion, and dropout spring another hook position (6) and housing maintains static.
5. according to one of in the claim 1 to 4 described locking magnet release, it is characterized in that, armature clamper (2) is designed to the clavate structure and has one base plate (14) is installed basically, with a cramp frame gripping member (15) armature card (3) is hung on this installation base plate (14), this cramp frame gripping member (15) makes armature card (3) and installs between the base plate (14) by its configuration design and/or by its size design and remains with clearance.
6. according to one of in the claim 1 to 4 described locking magnet release, it is characterized in that release housing (1) also has in order to by the guiding device (18) admitting corresponding guiding device (20) on the magnet piece (19) to hold to be designed to block magnet piece (19) with in order to magnet piece (19) is positioned at the locational positioner (21) of the regulation in the housing.
7. according to one of in the claim 1 to 4 described locking magnet release, it is characterized in that the reach through hole (27) that the lead-out wire (24) for the dropout winding (25) of magnet piece (19) of release housing (1) is established seals up by the sealing device (26) that is located on the lead-out wire or on housing.
8. according to the described locking magnet release of claim 7, it is characterized in that lead-out wire (24) is arranged to pin configuration, these pins are inlaid in the megohmite insulant of coil rack of dropout winding (25), and the megohmite insulant at this place constitutes a sealing plug.
9. according to the described locking magnet release of claim 7, it is characterized in that dropout winding (25) can be inserted on the side thigh that is located at two permanent magnets (22) between the side thigh.
CN93102004.2A 1992-02-20 1993-02-20 Protective switch, especially used for protection against unnormal current Expired - Fee Related CN1034372C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE9202223U DE9202223U1 (en) 1992-02-20 1992-02-20 Holding magnet releases for protective switching devices, especially for residual current circuit breakers
EP92102856A EP0561005B1 (en) 1992-02-20 1992-02-20 Trip device with holding magnet for protective switches, in particular for ground fault circuit interrupter
DE9202221U DE9202221U1 (en) 1992-02-20 1992-02-20 Holding magnet releases for protective switching devices, especially for residual current circuit breakers
DE9202222U DE9202222U1 (en) 1992-02-20 1992-02-20 Holding magnet releases for protective switching devices, especially for residual current circuit breakers
EP92102856.9 1992-02-20

Publications (2)

Publication Number Publication Date
CN1076055A CN1076055A (en) 1993-09-08
CN1034372C true CN1034372C (en) 1997-03-26

Family

ID=27436446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN93102004.2A Expired - Fee Related CN1034372C (en) 1992-02-20 1993-02-20 Protective switch, especially used for protection against unnormal current

Country Status (7)

Country Link
EP (1) EP0561005B1 (en)
JP (1) JPH0652787A (en)
CN (1) CN1034372C (en)
AT (1) ATE123588T1 (en)
DE (4) DE9202222U1 (en)
DK (1) DK0561005T3 (en)
ES (1) ES2072643T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9408669U1 (en) * 1994-05-26 1994-07-14 Siemens AG, 80333 München Holding magnet release for protective switching devices, especially for residual current circuit breakers
DE19727826A1 (en) * 1997-06-30 1999-01-07 Siemens Ag Electrical installation device with memory element
KR100364824B1 (en) * 2000-12-05 2002-12-16 엘지산전 주식회사 The current leakage trip device in earth leakage circuit breaker
CN101527228B (en) * 2008-03-03 2012-01-18 西门子公司 excitor
KR200496737Y1 (en) * 2018-04-02 2023-04-13 엘에스일렉트릭(주) Trip Device of Molded Case Circuit Breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE511452C (en) * 1928-06-21 1930-11-01 Siemens Schuckertwerke Akt Ges Automatic switch for direct current
CH538189A (en) * 1970-12-01 1973-06-15 Siemens Ag Circuit breaker, especially residual current circuit breaker
FR2331877A1 (en) * 1975-11-13 1977-06-10 Saparel Sensitive electromagnetic relay with two iron cores - has permanent magnet between cores and has control coil forming flat structure
DE2856316C3 (en) * 1978-12-27 1983-11-03 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Electronic tripping system for circuit breakers, in particular for residual current circuit breakers
DE3332860A1 (en) * 1983-09-12 1985-03-28 Siemens AG, 1000 Berlin und 8000 München Trip device for an earth-leakage current protection circuit breaker

Also Published As

Publication number Publication date
DE9202221U1 (en) 1992-04-23
DE9202223U1 (en) 1992-04-23
ES2072643T3 (en) 1995-07-16
EP0561005B1 (en) 1995-06-07
EP0561005A1 (en) 1993-09-22
DE9202222U1 (en) 1992-04-23
DE59202459D1 (en) 1995-07-13
ATE123588T1 (en) 1995-06-15
DK0561005T3 (en) 1995-11-06
CN1076055A (en) 1993-09-08
JPH0652787A (en) 1994-02-25

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