CN101416261B - Arc quenching device with an arc quenching material for a circuit breaker - Google Patents
Arc quenching device with an arc quenching material for a circuit breaker Download PDFInfo
- Publication number
- CN101416261B CN101416261B CN2007800119362A CN200780011936A CN101416261B CN 101416261 B CN101416261 B CN 101416261B CN 2007800119362 A CN2007800119362 A CN 2007800119362A CN 200780011936 A CN200780011936 A CN 200780011936A CN 101416261 B CN101416261 B CN 101416261B
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- CN
- China
- Prior art keywords
- arc
- control device
- gassing
- plastics
- parts
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
- H01H9/362—Mounting of plates in arc chamber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to an arc quenching device (2) for an electrical switch (1) having a plurality of arc quenching plates (23), which are arranged parallel to one another, and having at least one part (50) composed of gassing plastic. In order to stabilize the arc, the invention provides for the at least one part (50) composed of gassing plastic to extend parallel to the arc running direction (32) covering at least two of the quenching plates.
Description
Technical field
The present invention relates to a kind of arc-control device that is used for electric switch, it has a plurality of arc extinguishing boards that are arranged in parallel and has the parts that at least one is processed by the gassing plastics.
The invention still further relates to a kind of electric switch with such arc-control device.
Background technology
It is well-known in arc-control device, using gassing plastics (gasenden Kunststoffen).This " gassing " plastics are characterised in that, with the switching arc reciprocation time, from the surface of plastics, discharge gasiform catabolite.These gas shape catabolites that also are referred to as " automatic gas-producing " cause producing overvoltage and so forcing electric arc to extinguish faster in the arc extinguishing zone.
DE102 42 310A1 disclose a kind of line protection switch with the arc-control device that belongs to this type of.In this known arc-control device, the optional feature of being processed by the gassing plastics is designed to the flat board preferably processed by
ASK.This flat board is set for arc extinguishing board is replenished or replaces arc extinguishing board and be parallel to arc extinguishing board and then traversed by is heavy directly moves towards in the electric arc traffic direction.It is used for stable arc in the arc extinguishing board scope.
Summary of the invention
Set out by a kind of arc-control device, the objective of the invention is to propose to be used for the another kind of solution of stable arc with characteristic as described in the preamble of claim 1 (DE102 42 310A1).
This purpose realizes according to the present invention in this wise, at least one parts overlap joint (ü bergreifend) at least two arc extinguishing board of promptly processing by the gassing plastics, and be parallel to the extension of electric arc traffic direction simultaneously.Preferentially be provided with the gassing parts of two flat strips belt shapes, for stable arc best, the gassing parts are extending on all arc extinguishing boards below the arc extinguishing board.Can install additional with simple mode on the mounting technology according to gassing parts of the present invention, that is to say especially also utilize insulating material wall with arc extinguishing board fastening be assembled into the arc extinguishing board box after.
The preferred design of new arc-control device proposes, and arc extinguishing board is arranged in two in parallel and leads between the arc plate, and wherein two flat bands are separately fixed at two and lead on the arc plate.In order to fix, to lead arc plate and flat band and can be provided with and have corresponding locking device.Lead the arc plate and especially can have projection, these projections are embedded in the vacancy of correspondence of insulation wall 22.Can be by the additional support of insulation wall to flat band, these insulation walls are parallel to the extension of electric arc traffic direction and they itself are used for fixing arc extinguishing board and lead the arc plate.At this, flat limit that is parallel to insulation wall separately of two bands can be bearing in the insulation wall.
Another preferred design of the present invention proposes, and the gassing plastics are strengthened by glass fiber.This glass fiber strengthen from the regular reciprocation of electric arc in produce the effect that keeps structure, thereby when electric arc stablize comparably well, avoided owing to the arcing product under dropping is polluted the parts that are arranged in the switch contact system under the arc-control device.
From the purpose that fire prevention is optimized, the gassing plastics preferentially comprise a kind of additive of being made up of red phosphorus.Therefore, especially can be used as the gassing plastics as injection molding trade mark
polyamide that A3X2G7 is known uses.
Description of drawings
The embodiment of new arc-control device has been shown in Fig. 1 to 5.
Shown in the figure:
Fig. 1 is the sketch map with electric switch of arc-control device;
Fig. 2 is the switch contact arrangement of electric switch, and it is corresponding to the arc-control device according to invention;
Fig. 3 is the explosion figure according to arc-control device shown in Figure 2;
Figure 4 and 5 are when assembling the optional feature of being processed by the gassing plastics and arc-control device shown in Figure 2 afterwards.
Embodiment
Fig. 1 has represented a kind of electric switch 1 of low-voltage circuit breaker form, and it has a switch contact system, corresponding to the arc-control device 2 of this switch contact system and the switch polarity shell that is made up of two clamshells 3 and 4.Simultaneously, integrated switch chamber 5 of this switch polarity shell formation is used to lay switch contact system and forms integrated arc control device 6 of opening towards switch chamber 5 be used to hold arc-control device 2.Switch contact system by fixing switch contact arrangement 7 and movably switch contact arrangement 8 form.At this, movably switch contact arrangement 8 has the switch contact 12 of the contact holder that can swing 11 and a plurality of movably contacts lever form.Movably switch contact 12 can be swung in parallel to each other and flexibly be bearing on the contact holder 11 under the situation of pretension by means of two contact pressure springs 13 respectively.Movably switch contact arrangement 8 is connected with a switch shaft 15 through a leverage 14 that in Fig. 1, just simply illustrates in known manner.Switch shaft 15 be used to simultaneously drive and not shown further, be parallel to shown in other switch contact system of arranging of switch contact system, these other switch contact system is other to having respectively, equally also unshowned arc-control device.Switch shaft 15 can the open position when the switch contact system is cut off be transformed on the on-position that the switch contact system is closed by means of a drive unit 16.When switch shaft 15 was transformed into its on-position, contact pressure spring 13 was further compressed.Drive unit 16 has the driver 18 that is provided with secondary spring 17, drive system 19 and the latching device 20 that drive unit 18 and switch shaft 15 are coupled.
According to Fig. 2 and 3, the arc extinguishing board 23 that each arc-control device 2 is all processed by two insulation walls of being processed by fiber or plastic refractory 22 and by steel plate with lead arc plate 24,25 and form.Arc extinguishing board 23,40 with lead arc plate 24,25 and be provided with latch 26, it is inserted in the hole 27 of insulation wall 22 and carries out fastening assembling (riveted joint).Thereby form the arc extinguishing board box, this arc extinguishing board box is loaded in the arc control device 6.Arc-control device also has a terminal capping 28, and this end capping is provided with exhaust seam 29, side direction molded part 30 and through hole 31.Side direction molded part 30 is embedded in the slit 33 of insulation wall 22, so that terminal capping 28 is fixed on the arc extinguishing board box.Unshowned trip bolt is used for arc-control device 2 is fixed on arc control device 6, and this trip bolt passes in the corresponding with it screwed hole that through hole 31 is engaged to a clamshell in two clamshells 3 of switch polarity shell.
According to Fig. 2, fixing switch contact arrangement 7 is corresponding to the flat arc plate 24 of leading, and this leads the lateral surface perpendicular to insulation board that the arc plate has constituted the arc extinguishing board box.Movably switch contact arrangement 8 is corresponding to leading arc plate 25, and this leads the lateral surface perpendicular to insulation board that the arc plate equally also constitutes arc extinguishing board.The arc extinguishing board box has first one 40 of being parallel to arc extinguishing board 23 and in contrast to the bending 41 that direction 32 tilts of opening of switch contact 12 movably.The free end of this bending 41 has the less spacing with respect to the free-ended moving track that is designed to electric arc angle 34 of removable switch contact 12.This guaranteed the electric arc root from electric arc angle 34 to the optimum transfer of leading arc plate 25.At this, the electric arc traffic direction is corresponding to breaking off direction 32.
According to Figure 4 and 5, two flat banded additional parts 50 are bearing on the opposed facing medial surface of the insulation wall 22 under the arc extinguishing board 23, and the flat sides of parts 50 is parallel to insulation wall.Additional parts 50 are made up of the gassing plastics, and this plastics include additive red phosphorus as fireproofing installation.In addition, in order to strengthen, the gassing plastics have the reinforcement material of form of glass fibers.Gassing parts 50 are that
A3X2G7 and well-known Maranyl PA66 constitute by trade mark preferably; The characteristics of this plastics are low melting viscosity, and except red phosphorus, also to have mass ratio be 35% glass fiber.Two bands have the length of 98mm respectively, the width of 22mm and the thickness of 3mm.
Band is fixed on through corresponding locking device and leads on the arc plate.Simultaneously, lead the arc plate and on its edge near two insulation walls 22, have projection 51, it is embedded in the vacancy 52 of correspondence of the pass in insulation wall 22.
The assembling of two flat bands is at arc extinguishing board 23 and leads arc plate 24,25 usefulness and just carry out afterwards towards the insulation wall 22 fastening assemblings (riveted joint) of arc extinguishing board box.At this; Insulation wall 22 elasticity in short-term is outwardly-bent; So that make flat band on a side of switch contact system, being positioned in this wise under the arc extinguishing board of arc extinguishing board box, the projection 51 of promptly leading arc plate 24,25 can be embedded in the vacancy 52 of the correspondence of flat band.
Through such layout and arc extinction performance fixing, can improve arc-control device greatly by gassing plastics, the additional parts that especially constitute by
A3X2G7.Relatively bothersome aspect mounting technology, be used for stablely for example just can having cancelled by other solutions of the electric arc in the arc extinguishing board box of the disclosed form of leading arc spare that is made of copper of DE10250950B4.For example owing to the invalid personal damage that causes of arc extinguishing when the short circuit is then got rid of reliably, thereby just do not need other safeguard measure, especially do not needed the additional protection cover of insulation wall.
Through the glass fiber of the gassing plastics of component parts 50 being strengthened having guaranteed the structure of parts 50 keeps, thereby even when often reciprocation taking place, also can avoid unclamping and dropping of parts 50 with switching arc.
Claims (10)
1. arc-control device (2) that is used for electric switch (1),
-have a plurality of be parallel to each other the arc extinguishing board (23) arranged and
-have at least one parts (50) of processing by the gassing plastics,
It is characterized in that; At least two arc extinguishing board parallel of at least one parts (50) overlap joint by said gassing plastics are processed are extended in electric arc traffic direction (32); Arc extinguishing board (23) is arranged in two in parallel and leads arc plate (24; 25) between, said parts (50) are separately fixed at two said leading on the arc plate as two bands.
2. arc-control device according to claim 1 is characterized in that, at least one gassing parts (50) overlaps all arc extinguishing boards.
3. according to each described arc-control device in claim 1 or 2, it is characterized in that be provided with two gassing parts (50), they are designed to flat band and are arranged under the arc extinguishing board.
4. arc-control device according to claim 1 is characterized in that, saidly leads arc plate (24,25) and said band all is provided with corresponding locking device.
5. arc-control device according to claim 4 is characterized in that, the said arc plate (24,25) of leading has projection (51), and said projection is embedded in the vacancy (52) of correspondence of said gassing parts (50).
6. according to claim 1 or 4 or 5 described arc-control devices; It is characterized in that; In order to secure the above arc extinguishing board (23) and the said arc plate (24 of leading; 25) be provided with two insulation walls (22) that are parallel to said electric arc traffic direction (32), wherein flat limit that is parallel to insulation wall (22) separately of two said flat bands is bearing in the said insulation wall (22).
7. according to claim 1 or 2 each described arc-control devices, it is characterized in that the gassing plastics are strengthened by glass fiber.
8. arc-control device according to claim 7 is characterized in that, the gassing plastics comprise a kind of additive of being made up of red phosphorus.
9. arc-control device according to claim 7; It is characterized in that,
A3X2G7 is used as the gassing plastics.
10. the electric switch (1) with arc-control device (2) is characterized in that, according to each designs said arc-control device (2) in the claim 1 to 9.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610015305 DE102006015305A1 (en) | 2006-03-29 | 2006-03-29 | Electric arc discharge device for electric switch, has discharge plates arranged parallel to each other, and part made of gaseous plastic material, overlapping two plates and extending parallel to arc running direction |
| DE102006015306A DE102006015306A1 (en) | 2006-03-29 | 2006-03-29 | Electric arc-extinguishing device for use with e.g. low-voltage power switch, has several electric arc-extinguishing plates arranged parallel to each other, and part made of gaseous plastic reinforced by fiber glass |
| DE102006015306.5 | 2006-03-29 | ||
| DE102006015305.7 | 2006-03-29 | ||
| PCT/EP2007/052958 WO2007113184A1 (en) | 2006-03-29 | 2007-03-28 | Arc quenching device with an arc quenching material for a circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101416261A CN101416261A (en) | 2009-04-22 |
| CN101416261B true CN101416261B (en) | 2012-09-05 |
Family
ID=38460278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800119362A Active CN101416261B (en) | 2006-03-29 | 2007-03-28 | Arc quenching device with an arc quenching material for a circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101416261B (en) |
| DE (1) | DE102006015305A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011157825A1 (en) * | 2010-06-18 | 2011-12-22 | Dsm Ip Assets B.V. | Electrical circuit breaker |
| CN102509676B (en) * | 2011-10-28 | 2014-12-03 | 常熟瑞特电气股份有限公司 | Framework circuit breaker arc extinguishing chamber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1313121A1 (en) * | 2001-03-27 | 2003-05-21 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker |
| CN2743961Y (en) * | 2004-11-11 | 2005-11-30 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing device for circuit breaker |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1250909B (en) * | 1967-09-28 | |||
| DE1053067B (en) * | 1958-06-26 | 1959-03-19 | Siemens Ag | Electric circuit breaker with extinguishing chamber |
| DE7027838U (en) * | 1970-07-24 | 1971-12-23 | Siemens Ag | SWITCHING DEVICE WITH A SWITCH CHAMBER |
| DE3413555A1 (en) * | 1984-04-11 | 1985-10-24 | Brown, Boveri & Cie Ag, 6800 Mannheim | DELETING DEVICE FOR ELECTRICAL SWITCHES |
| DE29905214U1 (en) * | 1999-03-12 | 1999-06-10 | Siemens AG, 80333 München | Arc quenching device |
| DE10242310A1 (en) * | 2001-11-16 | 2003-07-10 | Abb Patent Gmbh | Electric arc extinguishing unit for an electric switch, comprises a housing with upper and lower sections and an extinguishing chamber |
-
2006
- 2006-03-29 DE DE200610015305 patent/DE102006015305A1/en not_active Withdrawn
-
2007
- 2007-03-28 CN CN2007800119362A patent/CN101416261B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1313121A1 (en) * | 2001-03-27 | 2003-05-21 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker |
| CN2743961Y (en) * | 2004-11-11 | 2005-11-30 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing device for circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101416261A (en) | 2009-04-22 |
| DE102006015305A1 (en) | 2007-10-04 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |