CN1290136C - Yoke comprising single-element fixed contact carrier - Google Patents

Yoke comprising single-element fixed contact carrier Download PDF

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Publication number
CN1290136C
CN1290136C CNB028007255A CN02800725A CN1290136C CN 1290136 C CN1290136 C CN 1290136C CN B028007255 A CNB028007255 A CN B028007255A CN 02800725 A CN02800725 A CN 02800725A CN 1290136 C CN1290136 C CN 1290136C
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CN
China
Prior art keywords
magnetic
short circuit
coil
fixed contact
armature
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 - Lifetime
Application number
CNB028007255A
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Chinese (zh)
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CN1459120A (en
Inventor
A·特特克
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.)
MOLLE AUTOMATION SYSTEM KG
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MOLLE AUTOMATION SYSTEM KG
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.)
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Publication date
Application filed by MOLLE AUTOMATION SYSTEM KG filed Critical MOLLE AUTOMATION SYSTEM KG
Publication of CN1459120A publication Critical patent/CN1459120A/en
Application granted granted Critical
Publication of CN1290136C publication Critical patent/CN1290136C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element
    • 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
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

The invention relates to a yoke (1) for a magnetic system of a short circuit triggering device (16), especially for mounting in a circuit-breaker. Said short circuit triggering device (16) comprises a fixed contact carrier (2), a coil (4) with a core (5), an armature (9) which can be moved in the coil (4), and the yoke (1) carrying the core (5). In the event of a short circuit, the armature (9) is impacted by the magnetic forces produced in the coil (4) by the short circuit current, against a switching device (22) which causes the interruption of the current, the fixed contact carrier (2) being embodied as a single element with the yoke (1).

Description

The magnetic that has the overall fixed contact holder is gripped
Technical field
The present invention relates to a kind of magnetic that is used for the magnetic system of short circuit trip gear grips; Be particularly related to and be used for being installed in line protection switch, the sort of short circuit trip gear comprises the fixed contact support, and band coil unshakable in one's determination, and the magnetic of armature that can move in coil and supporting iron core is gripped; Wherein, under short-circuit conditions, the magnetic impact switching device of armature by producing in coil owing to short circuit current causes current interruptions.
Background technology
This magnetic is gripped particularly and is very familiar in line protection switch manufacturing field.In relevant short circuit trip gear, the fixed contact support but uses as intrinsic parts, and is connected with the short circuit trip gear.The shortcoming that it causes is that construction expenditure is very high, because an intrinsic job step is two parts to be coupled together by welding or riveted joint.
Summary of the invention
The objective of the invention is, a kind of this defective of can eliminating is provided, grip short circuit trip gear with a kind of simple structure especially for being installed in magnetic in the line protection switch.
According to the present invention; the technical solution of this purpose is that a kind of magnetic grips; it is used for the magnetic system of short circuit trip gear; especially for being installed in the line protection switch; the sort of short circuit trip gear comprises the fixed contact support; and band coil unshakable in one's determination; armature that can move in coil and supporting magnetic unshakable in one's determination are gripped, wherein, and in short circuit event; the magnetic impact switching device of armature by in coil, producing owing to short circuit current; cause current interruptions, wherein, fixed contact support and magnetic are gripped and are constituted integral body; unshakable in one's determination gripping with magnetic also is an integral body, particularly under the form of deep-draw basin.
Grip overall structure with the fixed contact support by magnetic, two parts are just only finished by a device fabrication in one procedure.It has cancelled those operations that connect between two parts, particularly as riveted joint or welding sequence.Like this, saved the time of making switch short circuit trip gear.
According to another implementation of the invention, unshakable in one's determination gripping with magnetic is an integral body, and particularly to grip be an integral body for iron core under the form of deep-draw basin and magnetic.
Its another advantage is to have cancelled connection those operations of gripping with magnetic unshakable in one's determination.Therefore in addition, iron core and magnetic those spaces between gripping have also been avoided.In the prior art, unshakable in one's determination and magnetic is gripped the corresponding construction with parts independently of one another, owing to there is the space, occurs magnetic loss in the magnetic system.By another formation of the present invention, eliminated this phenomenon.
Description of drawings
By showing the accompanying drawing of preferred embodiment, describe the present invention in detail now.Wherein:
Top view when Fig. 1 illustrates and magnetic of the present invention is housed grips 1 line protection switch and take off cover;
Fig. 2 illustrates according to magnetic of the present invention and grips 1 floor plan that has an execution mode of riveted joint unshakable in one's determination 5, and the part is the cross section;
Fig. 3 illustrates according to magnetic of the present invention and grips 1 floor plan that has another execution mode of employed armature block 6;
Fig. 4 illustrates and grips 1 according to magnetic of the present invention and have the floor plan that magnetic is gripped second another execution mode of longitudinal side of 1d, and the part is the cross section;
Fig. 5 illustrates according to magnetic of the present invention and grips 1 oblique view that has an execution mode of deep-draw iron core 5;
Fig. 6 illustrates according to magnetic of the present invention and grips the floor plan that 1 armature block 6 has riveted joint unshakable in one's determination 5, and the part is the cross section; With
Fig. 7 illustrates to have according to magnetic of the present invention and grips 1 and the oblique view of short circuit trip gear at the fastening angle 8 of welding.
Embodiment
According to single phasing protection switch of the present invention,, be similar to traditional line protection switch as from can most clearly finding out Fig. 1.
It consists essentially of two bar clamps 14,15, is used to connect the lead that will monitor, and overlond trip element 17 and short circuit trip gear 16 also have switching device 22 in addition, and it can be with armature contact 7 ' move to open position shown in Figure 1 from detent position.
In normal operation; the electric current that will monitor in this protection switch; come out from first bar clamp; at first by overlond trip element 17; by movably phase line 19 and moving bridge contact 20 arrive movably contact 7 '; after this lead to short circuit trip gear 16 by fixed contact 7, lead to second bar clamp 15 at last.
No matter switching device 22 is by overlond trip element 17, still by short circuit trip gear 16, all can operate according to the described mode in back.
Overlond trip element 17 is made of bimetal leaf 18 in known mode own, and 18 by the current flow heats that will monitor.The first end 18a of bimetal leaf 18 is fixed in the shell of protection switch, and the second end 18b keeps the state that moves freely.Therefore bimetallic bending by the bimetallic heating produces causes the second end 18b to move to arrow Δ 18 directions.When reaching enough heat, the free end 18b of bimetal leaf 18 produces with the yoke that acts on switching device 22 and contact when this motion, along the direction of motion with its band from, and thus with the action dropout of switching device 22.Short circuit trip gear 16 comprises magnet exciting coil 4, has the iron core 5 that does not indicate among Fig. 1, grips 1 and same removable armature 9 that does not indicate according to magnetic of the present invention in Fig. 1.When short-circuit conditions and quite high short circuit current occurring, the rapid variation generation effect of magnetic current in the coil 4, armature 9 moves along the direction of switching device 22, the moving bridge contact 20 of connected jumper bar 10 impulse interference wave switch devices 22.
Moving bridge contact 20 is by means of spring 24, movable contact 7 ' the open position direction on be offset.Under the dropout situation, just when overload or short circuit, the tiny skew that moving bridge contact 20 had been introduced, by the jumper bar 10 of short circuit trip gear 16 or by the overlond trip element 17 on the yoke 21, by this spring 24, quicken moving bridge contact 20 be offset fully enter current collector 7 ' open position.
By contact 7 ' open fixed contact 7 and contact 7 ' between the electric arc that produces, by electric arc section 30 guiding that a taper enlarges, its wall is made of the extension 2a and the electric arc slide rail 32 of fixed contact support 2.Electric arc moves along the electric arc section 30 that enlarges in known manner, and in the explosion chamber 34 of the muffler plate that has a plurality of overlapping supportings near it extinguishing arc, wherein extinguishing arc gas is by floss hole 35 dischargings.
Be to connect protection switch, just for moving bridge contact 20 is moved back into armature contact 7 ' off-position, carry out manual operation handle 25 from the outside.
Be divided into two parts according to the shell of protection switch of the present invention in known mode itself, by cover down 26 and Fig. 1 in the cover of going up that do not indicate form.
The present invention relates to short circuit trip gear 16 magnetic and grip 1 unique forms, relevant with the scope of the electric arc section 30 that constitutes by fixed contact support 2, particularly in order to be installed in the line protection switch.The present invention is not limited to this short circuit trip gear 16 certainly and is used for line protection switch.Only showing the shell of line protection switch or this switch in the accompanying drawing, is to grip 1 particularly preferred application because be one here according to magnetic of the present invention.However, magnetic is gripped 1 and also can or be comprised on other electric devices of short circuit trip gear at other protection switches and using.
Fig. 2 illustrates the magnetic system of short circuit trip gear 16, comprises the coil 4 of band unshakable in one's determination 5 and grips 1 according to magnetic of the present invention.In addition, short circuit trip gear 16 comprises a fixed contact support 2 and a contact 7 that applies thereon, for example in silver-plated mode.The extension 2a of fixed contact support 2 is as the slide rail of extinguishing arc section 30.The armature block 6 that does not indicate among Fig. 2 rises on the iron core 5 of coil 4.
Coil 4 is made of copper wire, has only a small amount of winding.First end 4a of coil and magnetic are gripped first end face 1a welding of 1, second end 4b of coil and the contact plate 8a at fastening angle 8 welding (Fig. 7).Fixed contact support 2 and the extension 2a that uses as the electric arc slide rail thereof, gripping 1 according to the present invention with magnetic is an overall structure.
Under the protection switch closed condition, movable contact 7 ' contact with fixed contact 7, thus, electric current is gripped 1 first end face 1a, coil 4 and fastening angle 8 by fixed contact support 2, magnetic and is led to second bar clamp 15.
According to of the present invention, grip in 1 for integrally-built magnetic with fixed contact support 2, the first end 4a of coil 4 directly grips 1 welding with magnetic, needn't be in known structure, weld with fixed contact support 2 as intrinsic parts use.For this reason, magnetic is gripped 1 and itself is made by electric conducting material, perhaps uses conductive material coating, for example uses copper electroplating layer.
Armature block 6 (with reference to Fig. 6) comprises coil cover 12, and armature 9 is bearing in the inside, can be to the direction of Δ 9 signs, and just the direction of magnetic bobbin core 5 moves.Armature 9 receives a jumper bar 10 in opening.Jumper bar 10 and armature 9, just leave magnetic bobbin core 5 and move to Δ 9 directions by jumper bar spring 11.
Magnetic bobbin core 5 is intrinsic turning part in Fig. 2, grips first end face 1a of 1 riveted joint with magnetic.This iron core 5 is gripped two end face 1a of 1 at magnetic, and extend inner space between the 1c, and has the bearing-surface 5a that close magnetic is gripped second end face 1a of 1, and armature impacts to 5a under the short-circuit conditions, and mouthful 5b that is used to receive jumper bar 10.
Magnetic bobbin core 5 but also can, shown in Fig. 3 and 5, grip 1 and fixed contact support 2 or be overall structure with the extension 2a of the fixed contact support 2 that uses as the electric arc slide rail with magnetic.In this case, magnetic bobbin core 5 preferably constitutes by the deep-draw basin of gripping at magnetic on first end face 1c of 1.Here, the deep-draw basin is also gripped 1 inner space at magnetic and is extended, and is that the mouth 5b that armature and being used to receives jumper bar 10 constitutes bearing-surface 5a (with reference to Fig. 5).
In Fig. 3, armature block 6 is adjusted by magnetic bobbin core 5 with coil cover 12, and wherein, the distance between armature 9 and the magnetic bobbin core 5 is measured like this, makes jumper bar 10 in working order down, just under the closed condition of protection switch, does not contact with moving bridge contact 20.
For preventing magnetic circuit loss as much as possible, magnetic grips 1 around coil 4 back bending that takes the shape of the letter U.On second the end face 1c relative, be useful on the space 3 of passing armature block 6 with first end face 1a.But also can have according to the present invention, with fixed contact support 2 be integrally-built magnetic grip 1 do not have second end face 1c constitute its produce light especially structure or, as shown in Figure 4, have second longitudinal side 1d, so that also connect magnetic circuit gripping on the relative side of first longitudinal side 1b of 1 with magnetic.
Under short-circuit conditions, the magnetic force generation effect of rising and to cause by electric current in the coil 4, thus the resistance of armature 9 contrary 5 direction upper plunger springs 10 unshakable in one's determination is moved.Under enough strong short circuit current situation, the moving bridge contact 20 of switching device 22 is subjected to the impact of jumper bar 10, and the action of switching device 22 is threaded off thus.Thus, moving bridge contact 20 move into armature contact 7 ' the position of opening fully, this contact disconnects.
By contact 7 ' open, fixed contact 7 and armature contact 7 ' between the electric arc that produces, come out from fixed contact 7, by electric arc section 30.Therefore first slide rail of electric arc section 30 constitutes the extension 2a of fixed contact support 2.
Fig. 7 illustrates according to magnetic of the present invention and grips 1, has fastening angle 8 and bar clamp 15 on the second end 4b that is welded on coil 4.This illustrates parts and constitutes a unit, and can utilize handle easily or put on automatic production line in the shell of line protection switch.

Claims (3)

1. a magnetic that is used for the magnetic system of short circuit trip gear (16) is gripped (1), this short circuit trip gear (16) comprises a fixed contact support (2), and the coil (4) of the iron core (5) of zone circle cover shape, the magnetic of armature (9) that can move in coil (4) and supporting (5) unshakable in one's determination is gripped (1), wherein, fixed contact support (2) is gripped (1) with magnetic and is constituted whole, this iron core (5) has (5b) flatly, one jumper bar (10) that links to each other with armature (9) is by this mouth (5b) guiding, wherein, in short circuit event, this jumper bar (10) by since the magnetic force that in coil (4), produces of short circuit current via mouthful (5b) impulse interference wave switch device (22) of this iron core (5), cause current interruptions, it is characterized in that, (5) unshakable in one's determination are gripped (1) with magnetic and are constituted an integral body.
2. according to the described yoke of claim 1 (1), it is characterized in that described and yoke (1) constitutes the shape that an integrated iron core (5) is made into the deep-draw basin.
3. according to claim 1 or 2 described yokes (1), it is characterized in that described yoke is used for being installed in line protection switch.
CNB028007255A 2001-03-20 2002-03-15 Yoke comprising single-element fixed contact carrier Expired - Lifetime CN1290136C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0044601A AT412926B (en) 2001-03-20 2001-03-20 JOKE FOR A MAGNETIC SYSTEM OF A SHORT-CIRCUIT RELEASE DEVICE
ATA446/2001 2001-03-20

Publications (2)

Publication Number Publication Date
CN1459120A CN1459120A (en) 2003-11-26
CN1290136C true CN1290136C (en) 2006-12-13

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ID=3674324

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Application Number Title Priority Date Filing Date
CNB028007255A Expired - Lifetime CN1290136C (en) 2001-03-20 2002-03-15 Yoke comprising single-element fixed contact carrier

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CN (1) CN1290136C (en)
AT (2) AT412926B (en)
CZ (1) CZ301277B6 (en)
DZ (1) DZ3511A1 (en)
EA (1) EA006044B1 (en)
HK (1) HK1058995A1 (en)
MY (1) MY140375A (en)
RO (1) RO123465B1 (en)
TN (1) TNSN03069A1 (en)
WO (1) WO2002075764A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006009220A1 (en) * 2006-02-28 2007-09-06 Siemens Ag Line protective switch arrangement has multiple line protective switch units, and respective fixed contact element provided to all line protective switch units by single common fixed contact element
DE102007043869B4 (en) * 2007-09-14 2016-02-25 Siemens Aktiengesellschaft Coil carrier and yoke of an electromagnetic release of a protective switching device, electromagnetic release and protective switching device
AT509279A1 (en) * 2008-07-31 2011-07-15 Moeller Gebaeudeautomation Gmbh SWITCHGEAR
DE102011014061B4 (en) * 2011-03-16 2013-11-28 Abb Ag Circuit breaker and method of making a circuit breaker
WO2014167604A1 (en) * 2013-04-11 2014-10-16 パナソニック 株式会社 Electromagnetic tripping device and circuit breaker
CN108511290B (en) * 2018-05-31 2024-04-26 海格科技股份有限公司 Tripping mechanism of miniature circuit breaker
RU209515U1 (en) * 2021-08-23 2022-03-16 Общество С Ограниченной Ответственностью "Электро Пром Торг" THREE-POLE MOTOR CONTROL DEVICE WITH ELECTROMAGNETIC DRIVE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH659733A5 (en) * 1983-07-07 1987-02-13 Weber Ag Fab Elektro Line protection circuit breaker
DE8527361U1 (en) * 1985-09-25 1986-01-09 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Short-circuit release device
DE3544532A1 (en) * 1985-12-17 1987-06-19 Hengstler Gmbh RELAY
DE9002197U1 (en) * 1990-02-24 1991-06-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit breaker with an electromagnetic release device
EP0569652A1 (en) * 1992-05-13 1993-11-18 Hager Electro S.A. Magnetic trip mechanism for circuit breaker, equivalent sub-assembly and circuit breakers incorporating them
DE19845476B4 (en) * 1998-10-02 2004-08-12 Aeg Niederspannungstechnik Gmbh & Co Kg Magnetic system for miniature circuit breakers

Also Published As

Publication number Publication date
AT7898U1 (en) 2005-10-17
CZ20032437A3 (en) 2005-05-18
HK1058995A1 (en) 2004-06-11
TNSN03069A1 (en) 2005-04-08
CN1459120A (en) 2003-11-26
RO123465B1 (en) 2012-07-30
WO2002075764A1 (en) 2002-09-26
DZ3511A1 (en) 2002-09-28
MY140375A (en) 2009-12-31
AT412926B (en) 2005-08-25
CZ301277B6 (en) 2009-12-30
EA006044B1 (en) 2005-08-25
ATA4462001A (en) 2005-01-15
EA200301031A1 (en) 2004-02-26

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