CN101609753B - Arc-extinguishing commutation switch and manufacture method thereof - Google Patents
Arc-extinguishing commutation switch and manufacture method thereof Download PDFInfo
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- CN101609753B CN101609753B CN200810302169A CN200810302169A CN101609753B CN 101609753 B CN101609753 B CN 101609753B CN 200810302169 A CN200810302169 A CN 200810302169A CN 200810302169 A CN200810302169 A CN 200810302169A CN 101609753 B CN101609753 B CN 101609753B
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- extinguish chamber
- fixed contact
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Abstract
The invention discloses an arc-extinguishing commutation switch and a manufacture method thereof. The method comprises the following steps: making a static contact base by a cubic material with high conductivity; respectively welding a static main contact and a static arc contact on the static contact base; covering an arc-extinguishing cover outside the static main contact and the static arc contact and exposing the pressing surface of the static contact base outside the arc-extinguishing cover; mounting a magnetic pushing mechanism on an arc-extinguishing cover plane corresponding to the static contact base; and hinging a movable main contact and a movable arc contact on a pushing rod of the magnetic pushing mechanism. The arc-extinguishing commutation switch made by the method bears a great current and has a small electric arc in closing and switching off the switch; low electric potential at both ends of the switch after being switched off can satisfy the need for safely connecting the upright column and the short-circuited block when an electrolytic tank is stopped or opened.
Description
Technical field
The present invention relates to a kind of arc-extinguishing commutation switch and preparation method thereof, belong to the switching technique field of D.C. high-current.
Background technology
In the production of electrolytic aluminium, many electrolysis tanks are as being to be connected after the series connection on the DC power supply of low-voltage and high-current with electric loading.As everyone knows, when series circuit occurred opening circuit when one of them load, other load also can be because of the outage cisco unity malfunction.Because the specific (special) requirements of electrolysis tank; What needs were regular stops groove overhaul with one or more electrolysis tank;, certain electrolysis tank, in the power supply circuits of every electrolysis tank, is designed with the short-circuit busbar parallelly connected when stopping groove with electrolysis tank in order not influence the operate as normal of other electrolysis tank.Short-circuit busbar is realized current switching through the closed and disconnected of column and short-circuit block.Because the power supply of electrolysis tank is the DC power supply that adopts low-voltage and high-current, under the normal running current of series, directly behaviour carries out the closed and disconnected operation of column and short-circuit block, the electric arc that the meeting produce power is very high even blast.So current electrolysis series is stopped groove generally at zero current or fall under the prerequisite of electric current and carry out.
For safety realizes not having a power failure or not falling stopping, slotting under the electric current; An arc-suppressing switch can be installed between column and short-circuit block; But because the electric current that general arc-suppressing switch allows can not adapt to the requirement of a little Wan An training direct currents in the Aluminum Electrolysis Production far away; Can cause and burn arc-suppressing switch, or between column and short-circuit block, still have higher electromotive force after the short circuit, can not guarantee that safe short circuit is connected with short-circuit block with column.Therefore existing arc-extinguishing commutation switch still can not meet the needs of production.
Summary of the invention
The object of the present invention is to provide a kind of arc-extinguishing commutation switch and preparation method thereof, make it can bear big electric current, and when closed and stopcock; Electric arc is little; After the closure, the electromotive force of switch ends is low, thereby satisfies electrolysis tank when stopping groove with fluting; Carry out the needs that are connected between column and the short-circuit block safely, to overcome the deficiency of prior art.
The present invention is achieved in that the manufacture method of arc-extinguishing commutation switch of the present invention is: this method is the cube material fixed contact pedestal with a high conductivity, on the fixed contact pedestal, welds a quiet main contact and a quiet arc contact respectively; At a quiet main contact and a quiet arc contact outer mask arc-extinguish chamber, the crimping face of fixed contact pedestal is exposed to outside the arc-extinguish chamber; At the relative arc-extinguish chamber Plane Installation magnetic pushing mechanism of fixed contact pedestal; And on the catch bar of magnetic pushing mechanism a hinged moving main contact and a moving arcing contact, main contact can be contacted with the quiet arc contact with quiet main contact respectively under the catch bar transmission of magnetic pushing mechanism with moving arcing contact.
Described fixed contact pedestal, quiet main contact, quiet arc contact, moving main contact and moving arcing contact are made with copper-tungsten.
Described arc-extinguish chamber use model be 3240 or the epoxy novolac laminated glass fabric swatch of N350 make.
The arc-extinguishing commutation switch of making according to method of the present invention is: it comprises the fixed contact pedestal, on the fixed contact pedestal, is provided with quiet main contact and quiet arc contact; On the fixed contact pedestal, arc-extinguish chamber is installed, is provided with crimping face, and the crimping face of fixed contact pedestal is positioned at outside the arc-extinguish chamber, on fixed contact pedestal and arc-extinguish chamber, be provided with the crimping hole in the bottom surface of fixed contact pedestal; On the relative arc-extinguish chamber of fixed contact pedestal, the magnetic pushing mechanism is installed, the catch bar of magnetic pushing mechanism stretches in the arc-extinguish chamber, on catch bar, is hinged with auricle, on auricle, is fixed with moving main contact and moving arcing contact; On moving main contact, be connected with the soft band of conduction, be provided with pressing plate, on pressing plate, be provided with connecting hole at the other end of soft band.
Arc-extinguish chamber fixes on the edge of fixed contact pedestal, and the crimping face of fixed contact base bottom surface is higher than the baseplane of arc-extinguish chamber.
Compared with prior art, it is big that the arc-extinguishing commutation switch that the present invention makes can bear direct current, owing on the fixed contact pedestal, be provided with quiet main contact and quiet arc contact and be provided with corresponding moving main contact and moving arcing contact; Can guarantee reliable closure or disconnection between the dynamic/static contact so effectively; And outside contact, be provided with arc-extinguish chamber, and the electric arc that produces during with closed and shutoff effectively seals, and electric arc can not leak during work; And extinguish very soon, the electric arc of generation is little; Because contact of the present invention adopts the material of high conductivity to process; And the contact contact area is big, and contact is reliable, so contact resistance is little; After the arc-extinguishing commutation switch closure; The electromotive force of switch ends is low, can share bigger electric current, and the electric current variable gradient between short-circuit block closure front and back short-circuit block and the column is descended; The asynchronous time was not more than 10 milliseconds when the moment breaking capacity of arc-extinguishing commutation switch of the present invention allowed parallel connection disjunction of many cover arc-extinguishing commutation switch or closure; The specified current-carrying of single cover of the present invention is 70000A, and the rated current download stream time, this arc-suppressing switch can carry out the specific aim design according to variant grooved simultaneously greater than 20 minutes; Can be to current capacity; The switch number that single column uses, the installation site is adjusted, and the single column maximum current of world today's main flow electrolysis tank all is lower than 70000A; Can satisfy electrolysis tank fully and stop groove and when fluting, safety carry out the needs that are connected between column and the short-circuit block.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Use-case sketch map when accompanying drawing 2 is the vertical two-sided installation of the present invention.
Being labeled as in the accompanying drawing: 1-fixed contact pedestal, the quiet main contact of 2-, 3-quiet arc contact, 4-arc-extinguish chamber, 5-crimping face; 6-crimping hole, 7-magnetic pushing mechanism, the 8-catch bar, the 9-auricle, 10-moves main contact; The 11-moving arcing contact, the soft band of 12-, 13-pressing plate, 14-connecting hole, 15-column; The 16-short-circuit block, 17-short-circuit block connector presser, 18-arc-extinguishing commutation switch, 19-bolt.
Embodiment
Embodiments of the invention: the manufacture method of arc-extinguishing commutation switch of the present invention is as shown in Figure 1.This method is to do fixed contact pedestal 1 with the cube material of a high conductivity, a quiet main contact 2 of welding and a quiet arc contact 3 on the same one side of fixed contact pedestal 1; Use again model be 3240 or the epoxy novolac laminated glass fabric swatch of N350 make an arc-extinguish chamber 4; Arc-extinguish chamber 4 is covered on quiet main contact 2 and quiet arc contact 3 outsides; The edge of arc-extinguish chamber 4 is fixedly connected with the fixed contact pedestal, on the another side of fixed contact pedestal 1, produces crimping face 5, and this crimping face 5 is used for column 15 crimping with aluminium cell; Crimping face 5 should exceed the baseplane of arc-extinguish chamber 4, and is exposed to outside the arc-extinguish chamber 4; In order to guarantee reliable crimping, on fixed contact pedestal 1 and arc-extinguish chamber 4, be drilled with crimping hole 6.During with the column crimping; Crimping face is attached on the column with bolt 19 fastening crimping; On the arc-extinguish chamber plane on fixed contact pedestal opposite, magnetic pushing mechanism 7 is installed; Magnetic pushing mechanism 7 can be made up of electromagnet and the catch bar 8 that is connected on the electromagnet weighing apparatus iron by conventional structure, and makes be not more than 10 milliseconds the operate time after the electromagnet energising.On the catch bar 8 of magnetic pushing mechanism, be hinged with auricle 9, a moving main contact 10 of welding and a moving arcing contact 11 on auricle.Be connected with on the moving main contact and softly be with 12, the other end of soft band is connected with pressing plate 13, is drilled with connecting hole 14 on the pressing plate, is used for being connected with the short circuit connector presser 17 of aluminium cell.Fixed contact pedestal, quiet main contact, quiet arc contact, moving main contact and the most handy copper-tungsten of moving arcing contact are made, and also can make with copper material.
According to the arc-extinguishing commutation switch that the manufacture method of aforesaid arc-extinguishing commutation switch makes up, its structure is as shown in Figure 1.During making; Adopt the material of high conductivity to go out fixed contact pedestal 1, producing or fixing quiet main contact 2 and quiet arc contact 3 on the fixed contact pedestal 1 simultaneously, and on the bottom surface of fixed contact pedestal 1, producing crimping face 5 through welding; The edge of fixed contact pedestal 1 is connected with the edge of arc-extinguish chamber 4; Or arc-extinguish chamber 4 fixed on the edge of fixed contact pedestal 1, the crimping face 5 of fixed contact pedestal 1 is positioned at outside the arc-extinguish chamber 4, and is higher than the baseplane of arc-extinguish chamber 4; Fixed contact pedestal 1 is provided with crimping hole 6 with arc-extinguish chamber 4; On the relative arc-extinguish chamber 4 of fixed contact pedestal 1, magnetic pushing mechanism 7 is installed, the catch bar 8 of magnetic pushing mechanism 7 stretches in the arc-extinguish chamber 4, on catch bar 8, is hinged with auricle 9, and auricle 9 is provided with moving main contact 10 and moving arcing contact 11; Be connected with on the moving main contact 10 that conduction is soft is with 12, the soft other end with 12 is provided with pressing plate 13, and pressing plate 13 is provided with connecting hole 14.
The concrete course of work of the present invention and installation and application; Arc-extinguishing commutation switch 18 of the present invention is after 7 energisings of magnetic pushing mechanism; Electromagnet drives catch bar 8 actions; Catch bar 8 promote on the auricles 9 moving main contact 10 and moving arcing contact 11 respectively with fixed contact pedestal 1 on quiet main contact 2 closely contact rapidly with quiet arc contact 3, make switch closure.During disconnection, cut off the power supply of magnetic pushing mechanism 7, catch bar 8 hightails main contact 10 and moving arcing contact 11 respectively under the effect of electromagnet medi-spring with quiet arc contact 3 with quiet main contact 2, switch is broken off.The present invention can use according to different situations flexibly, both can use separately, also can be by constituting the use in parallel of arc-extinguishing commutation switch group more than two.For example can use an arc-extinguishing commutation switch to be installed in vertical side of column 15, also can the use in parallel of two arc-extinguishing commutation switch be installed in vertical both sides of column, as shown in Figure 2; Can also install and use in the horizontal one or both sides of column.
Claims (5)
1. the manufacture method of an arc-extinguishing commutation switch, it is characterized in that: this method is the cube material fixed contact pedestal with a high conductivity, on the fixed contact pedestal, welds a quiet main contact and a quiet arc contact respectively; At a quiet main contact and a quiet arc contact outer mask arc-extinguish chamber, the crimping face of fixed contact pedestal is exposed to outside the arc-extinguish chamber; At the relative arc-extinguish chamber Plane Installation magnetic pushing mechanism of fixed contact pedestal; And on the catch bar of magnetic pushing mechanism a hinged moving main contact and a moving arcing contact, main contact can be contacted with the quiet arc contact with quiet main contact respectively under the catch bar transmission of magnetic pushing mechanism with moving arcing contact.
2. the manufacture method of arc-extinguishing commutation switch according to claim 1 is characterized in that: described fixed contact pedestal, quiet main contact, quiet arc contact, moving main contact and moving arcing contact are made with copper-tungsten.
3. the manufacture method of arc-extinguishing commutation switch according to claim 1 is characterized in that: described arc-extinguish chamber use model be 3240 or the epoxy novolac laminated glass fabric swatch of N350 make.
4. arc-extinguishing commutation switch, it comprises fixed contact pedestal (1), it is characterized in that: on fixed contact pedestal (1), be provided with quiet main contact (2) and quiet arc contact (3); Arc-extinguish chamber (4) is installed on fixed contact pedestal (1); Be provided with crimping face (5) in the bottom surface of fixed contact pedestal (1); And the crimping face (5) of fixed contact pedestal (1) is positioned at outside the arc-extinguish chamber (4), on fixed contact pedestal (1) and arc-extinguish chamber (4), is provided with crimping hole (6); On the relative arc-extinguish chamber (4) of fixed contact pedestal (1), magnetic pushing mechanism (7) is installed; The catch bar (8) of magnetic pushing mechanism (7) stretches in the arc-extinguish chamber (4); On catch bar (8), be hinged with auricle (9), on auricle (9), be fixed with moving main contact (10) and moving arcing contact (11); On moving main contact (10), be connected with the conduction soft band (12) one ends, the conduction soft band (12) the other end be provided with pressing plate (13), on pressing plate (13), be provided with connecting hole (14).
5. arc-extinguishing commutation switch according to claim 4 is characterized in that: arc-extinguish chamber (4) fixes on the edge of fixed contact pedestal (1), and the crimping face (5) of fixed contact pedestal (1) bottom surface is higher than the baseplane of arc-extinguish chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810302169A CN101609753B (en) | 2008-06-17 | 2008-06-17 | Arc-extinguishing commutation switch and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810302169A CN101609753B (en) | 2008-06-17 | 2008-06-17 | Arc-extinguishing commutation switch and manufacture method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101609753A CN101609753A (en) | 2009-12-23 |
| CN101609753B true CN101609753B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810302169A Active CN101609753B (en) | 2008-06-17 | 2008-06-17 | Arc-extinguishing commutation switch and manufacture method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111986949A (en) * | 2020-07-22 | 2020-11-24 | 国网内蒙古东部电力有限公司电力科学研究院 | Isolating load switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101832A (en) * | 2007-08-07 | 2008-01-09 | 苑舜 | High capacity vacuum load switch |
| CN101162663A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with groove |
| CN201222450Y (en) * | 2008-06-17 | 2009-04-15 | 贵阳铝镁设计研究院 | Arc-extinguishing current-exchanging switch |
-
2008
- 2008-06-17 CN CN200810302169A patent/CN101609753B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101832A (en) * | 2007-08-07 | 2008-01-09 | 苑舜 | High capacity vacuum load switch |
| CN101162663A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with groove |
| CN201222450Y (en) * | 2008-06-17 | 2009-04-15 | 贵阳铝镁设计研究院 | Arc-extinguishing current-exchanging switch |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-349078A 2004.12.09 |
| JP特开平8-7713A 1996.01.12 |
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| Publication number | Publication date |
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| CN101609753A (en) | 2009-12-23 |
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Owner name: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INSTITUTE C Free format text: FORMER OWNER: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. Effective date: 20110531 |
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Free format text: CORRECT: ADDRESS; FROM: 550004 NO. 208, BEIJING ROAD, GUIYANG CITY, GUIZHOU PROVINCE TO: 550081 NO.2, JINZHU ROAD, JINYANG NEW DISTRICT, GUIYANG CITY, GUIZHOU PROVINCE |
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Effective date of registration: 20110531 Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Applicant after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Applicant before: Guiyang Aluminium and Magnesium Design Inst. |
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