CN1125353A - Medium voltage switch or circuit breaker - Google Patents
Medium voltage switch or circuit breaker Download PDFInfo
- Publication number
- CN1125353A CN1125353A CN 95117202 CN95117202A CN1125353A CN 1125353 A CN1125353 A CN 1125353A CN 95117202 CN95117202 CN 95117202 CN 95117202 A CN95117202 A CN 95117202A CN 1125353 A CN1125353 A CN 1125353A
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- CN
- China
- Prior art keywords
- contact
- hinged
- flashing
- driver
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The circuit breaker includes an energy store which comprises a drive in the form of a frame sliding in a fixed support and housed in the arc chamber. The upper part of the drive is supported on one end of a compression spring and the lower part of the drive joins with the control mechanism of the moving contact. When the closure operation occurs, the arc contacts first close and then the spring is compressed so that it acts on the moving contact, allowing rapid release of energy on opening.
Description
The present invention relates to a kind of Medium voltage switch or circuit breaker or circuit breaker, this switch comprises the arc control device that a cylinder by two end plate closes forms, an one static flashing contact and a movable flashing contact are housed in the described arc chamber, one in static flashing contact and the above-mentioned end plate is combined as a whole securely, and be electrically connected with one first Ampereconductors, movable flashing contact is installed as and longitudinally passes another end plate slidably, and is electrically connected with one second Ampereconductors.Above-mentioned movable flashing contact realizes that by one the operating mechanism transmission of described flashing contact closure and disconnection is shifted, the pressure of described contact when make position is kept by a compression spring that acts on the movable contact, the electronic repulsive force of the flashing contact that the active force of spring obviously produces corresponding to electric current.
Japanese patent application n ° 190063/1993 has described a kind of several embodiment of circuit-breaker, and one of them has above-mentioned feature.According to this embodiment, the compression spring compression is installed between the transition member and a mounting panel that acts on the movable contact, and the joystick that this mounting panel and is hinged on the circuit-breaker support is connected.
The patent document FR2 that the applicant submits to, 677,168 have described another kind of circuit-breaker, and this circuit breaker comprises two main contacts and two the butt joint flashing contact of closure in parallel with it.Movable contact is by a mechanism operating, this mechanism comprises the compression spring of a toggle and a precompressed, this toggle is made up of a bent axle and a connecting rod, described connecting rod is connected with movable contact, this spring is between a described bent axle and the gudgeon, this gudgeon is on the described connecting rod and in the hole that described bent axle provides and slides, at described toggle when the dead point, described spring stored energy.
But the circuit-breaker of above-mentioned several prior aries has some shortcomings, and one of them is the speed of the inertia effects movable contact motion of movable part when the flashing contact disconnects and be closed.Another shortcoming is because the movable contact operating mechanism participates in keeping contact pressure, to produce stress when keeping contact pressure on the external component of disconnecting mechanism.
The invention solves the problems referred to above, and a kind of switch or circuit-breaker proposed, this switch designs is simple, size is little, reduce the quantity of the moving component of the speed of its inertia effects movable contact and acceleration, eliminated the stress that when keeping in touch pressure, on the disconnecting mechanism external component, produces simultaneously.
Therefore, the objective of the invention is to realize a kind of middle Piezoelectric switches, comprise arc control device, these arc control device are cylindrical shape and by two end plate closes substantially, an one static flashing contact and a movable flashing contact are housed in the described arc control device, one in described static flashing contact and the described end plate is combined as a whole securely and is electrically connected with one first Ampereconductors, described movable flashing contact is mounted to another that longitudinally passes described end plate slidably, described movable contact is electrically connected with one second Ampereconductors, and carry out the operating mechanism driving of closed and lock out operation by a pair of described flashing contact, contact is kept by a spring that acts on the movable contact at the pressure of make position, this characteristic of switch is, contain a stored energy mechanism, collaborative work in the following manner between this mechanism and the above-mentioned operating mechanism, when carrying out closed procedure, and then compress described spring after the described flashing contact closure, exerting pressure to the flashing contact, the energy of being stored during described length of spring compressed is used to carry out the high-speed separation of flashing contact when described contact disconnects on movable contact in described then compressed spring action.
According to a specific embodiment, above-mentioned stored energy mechanism comprises that one is the driver of a framework substantially, be slidably mounted in one first fixed bearing portion, above-mentioned arc control device are equipped with in inside, an end of above-mentioned spring is pushed down on the top of described driver, the other end of described spring is pressed on the described support, and the bottom of described driver and dead point are moving by system association, and this dead point is hinged by system and above-mentioned control system and movable flashing contact.
According to a concrete feature, this mechanism also comprises a retainer, the shift motion of this retainer restriction driver when described flashing contact disconnects.
According to a concrete feature, described dead point comprises a toggle at least by system, one drive rod of this toggle and described operating mechanism is hinged, the dead point of the close described flashing contact closure position of described toggle, and moving by the bottom association of its underpart and described driver.
Preferably, this dead point comprises two toggles that are positioned at described driver two sides by system, and described toggle is connected by a junction that is bearing in described driver bottom.
According to a specific embodiment, described one or more toggles are hinged at the one end by two bars and form, and described bar is hinged at the guide bar that its other end and movable contact and are hinged in the one second fixed bearing portion respectively.
Preferably, described toggle is formed by the double-throw crankshaft that is hinged to movable flashing contact, described double-throw crankshaft comprises two single-arm crankshafts, described single-arm crankshaft is hinged with the hinged connecting rod of the drive rod of described operating mechanism and one and guide bar respectively, and described guide bar and one second fixed bearing portion are hinged.
According to another embodiment, described dead point by system comprise at least one with the hinged cam of a drive rod of described operating mechanism, comprise a deep-slotted chip breaker on the described cam, one is one with described movable contact strong bonded, and pin slides in this groove, described cam is also with one to be hinged to the guide bar of one second fixed bearing portion hinged, and moving with the bottom association of described driver.
According to another feature, described first and second supports are electrically connected with described first and second Ampereconductors respectively.
According to another feature, described ring spring is around the polished rod part that a screw is installed, and this screw passes the top and the described first fixed bearing portion of described driver, and screws in described static flashing contact.
Preferably, switch disconnect last, described movable contact contacts one on the retainer that forms on the described driver, so that the impact energy that the movable contact motion is produced is absorbed by described spring.
Below by present invention is described with reference to the accompanying drawings, other advantage of the present invention and feature will become more apparent by these descriptions.Given accompanying drawing is only as example, wherein:
Figure 1 shows that the partial sectional view of the present invention's one specific embodiment circuit breaker one cutter utmost point;
Fig. 2-4 is depicted as the same cutter utmost point and is fixed on the framework and the flashing contact is in the make position of open position, contactless pressure respectively and maintains the cutaway view of the make position of pressure;
Work simplified schematic diagram when Fig. 5-7 is depicted as described circuit breaker and is in above-mentioned three positions respectively;
Fig. 5 a is the partial schematic diagram of dead point another embodiment of system of the present invention.
At a described cutter utmost point that there is shown the circuit breaker of one specific embodiment according to the present invention, this cutter utmost point is designed to will be fixed on the framework E.This cutter utmost point D comprises the arc control device 5 that a cylinder by two end plate 5a and 5b sealing forms, and is equipped with two in these arc control device 5 and is respectively static and movable flashing contact 1,2.
Static flashing contact 1 securely with above-mentioned end plate in a 5a combine securely, and be electrically connected with one first Ampereconductors 20, and movable flashing contact 2 passes another end plate 5b installation slidably, and is electrically connected with one second Ampereconductors 21, and an and operating mechanism C mechanical connection.This operating mechanism comprises a drive rod (or joystick 11), and a drive rod 11 and a both arms bent axle 30 are hinged, and double-throw crankshaft 30 is connected with another bar 31, and bar 31 is connected with a driving shaft 32.According to the present invention, this cutter utmost point D also comprises the mechanism of stored energy mechanism A by name in addition, and the A of mechanism comprises that the drive unit that generally speaking presents frame form's and be called driver 4, a dead point are by a S of system and a compression spring 3.Driver 4 comprises a top 4a and a U-shaped bottom 4b who forms a strut rail, and top 4a is connected with 4d by two connecting rod 4c with bottom 4b, and 4c, 4d pass the support 6 that is called first support slidably and install, and first support 6 forms above-mentioned first Ampereconductors 20.The U-shaped bottom 4b of described driver 4 passes one second support 13 slidably and installs, and second support 13 forms above-mentioned second Ampereconductors 21.Above-mentioned arc control device 5 are contained in the middle of the driver 4, and compression spring 3 is pressed in by one end 3a on the top 4a of driver, is pressed in by other end 3b on the support 6 of said fixing.One screw 23 passes the top 4a and first support 6 of driver 4, the static flashing contact 1 of precession then, and described ring spring is installed around the polished rod part 22 of this screw 23.
According to a specific embodiment of the present invention, described dead point is included in two toggles 7 and 8 on driver 4 two limits by the S of system, and each toggle is formed in that the one end is hinged by two bars 9,10.Preferably one of them bar is the hyperbolic axle 14 that is formed by two single axles 15,16, and this hyperbolic axle is hinged with movable contact 2 between two single axles 15,16 a bit.Single axle 16 also is connected with transiting rod 17, and transiting rod 17 is connected with guide bar 12 on being hinged on the second fixing support 13, and another bent axle 15 is hinged with joystick 11.In this embodiment, two toggles 7,8 are connected by the gudgeon or the like (not shown) that are on the driver 4 bottom 4b.
According to another embodiment shown in Fig. 5 a, the dead point comprises a cam 18 that is positioned at driver 4 both sides by the S of system.Cam 18 is hinged on the joystick 11, contains arc-shaped slot 18a on it, and the pin 18b that is one with movable flashing contact 2 strong bonded slides in cannelure 18a.The also articulated above-mentioned guide rod 12 of described cam 18 also is bearing on the bottom 4b of driver 4.
The work of circuit breaker of the present invention is described below with reference to accompanying drawing.
In Fig. 2 and Fig. 5, the disconnecting mechanism of cutter utmost point D is in stable open position, is open circuit between the flashing contact 1,2.When the flashing contact moves to the position of Fig. 3 (or Fig. 6) by the position of Fig. 2 (or Fig. 5), joystick 11 moves along arrow F direction, cause bent axle 14 (or bar 9) to rotate, thereby cause that movable contact 2 moves upward, until flashing contact 1 and 2 closures (Fig. 3 and Fig. 6) around axle x inhour.In this position, do not apply contact pressure.Along with closed procedure continues, bent axle 14 and bar 17 (or bar 9 and 10) produce thrust near aligning on the 4b of the bottom of driver 4, cause that bottom 4b moves downward.Cause the compression of compression spring 3 (Fig. 4 and 7) thus, when closed procedure is finished, compression spring applies an active force by reaction at the top of driver 4 4a, promote top 4a and upwards and by its underpart 4b on movable contact 2, apply active force, thereby the contact pressure between flashing contact 1 and 2 is provided.So circuit breaker is positioned at the steady closure position.Can find, in this position, toggle 7,8 can not accurately be in the dead point (that is bar 9 and 10 or bent axle 14 and bar 17 be positioned at aligned position).
When carrying out the opening operation of circuit breaker, drive rod 11 rotates bent axle 14 and bar 17 along moving in the opposite direction with aforementioned side.When opening operation began, the Conversion of energy that spring 3 produces by compression the time was a kinetic energy, the retainer 33 (Fig. 2,3,4) that driver 4 is promoted to move upward and forms up to the top of pushing up by screw 23 by spring 3, this position such as Fig. 3 and shown in Figure 6.In this stage, bent axle 14 and bar 17 (or bar 9,10) motion is accelerated, and causes high-speed separation between the flashing contact 1,2, movable contact 2 is arrived run into another retainer 34 that forms on the driver 4.Like this, impact energy is absorbed by compression spring 3.
The operation that comprises movable contact 2 drive systems of using cam 18 is identical with the description of front, no longer is described at this.
Should be noted that the present invention can be applied to multiple application equally, no matter be switch, or the system of circuit breaker or any element that need open circuit at a high speed.
Therefore, realized a kind of circuit-breaker or switch according to the present invention, the inertia of wherein keeping the related parts of contact pressure does not influence the movement velocity of movable contact, and wherein is reduced for keeping the active force to the circuit breaker external component that contact pressure causes.
Very natural, the present invention has more than description and the diagram that is limited to the embodiment that provides example in the literary composition.In contrast, the present invention includes all equivalence techniques scheme and combinations thereof of institute's tracing device, realize if these combinations are spirit according to the present invention.
Claims (11)
1, Piezoelectric switches in a kind of, comprise arc control device, these arc control device are cylindrical shape substantially, by two end plate closes, an one static flashing contact and a movable flashing contact are housed in the described arc control device, described static flashing contact is electrically connected with a strong bonded in the described end plate together and with one first Ampereconductors, described movable flashing contact is mounted to another that in axial direction passes described end plate slidably, described movable contact is electrically connected with one second Ampereconductors, and carry out the operating mechanism driving of closed and lock out operation by a pair of described flashing contact, contact is kept by a spring that acts on the movable contact at the pressure of make position
It is characterized in that, contain a stored energy mechanism (A), this mechanism comprises that one is the driver (4) of a framework substantially, be slidably mounted in the one first fixed bearing portion (6), above-mentioned arc control device (5) are equipped with in inside, an end (3a) of above-mentioned spring (3) is pushed down on the top (4a) of described driver (4), the other end of described spring (3b) is pressed on the described support (6), bottom of described driver (4b) and movably operating mechanism (C) collaborative work in the following manner of flashing contact (2), when carrying out closed procedure, described flashing contact (1,2) the closed described spring (3) that and then compresses afterwards, described then spring (3) acts on the movable contact with to flashing contact (1,2) exert pressure, the energy of being stored during described spring (3) compression is used at described contact (1, finish flashing contact (1 when 2) disconnecting, 2) high-speed separation.
2, switch according to claim 1 is characterized in that, described operating mechanism (C) assists moving dead point to be connected with movable contact (2) by system (S) by one with described driver bottom (4b).
3, switch according to claim 2 is characterized in that, also comprises a retainer (33), the shift motion of this retainer (33) restriction driver (4) when described flashing contact disconnects.
4, according to claim 2 or 3 described switches, it is characterized in that, described dead point comprises a toggle (7) at least by system (S), one drive rod (11) of this toggle and described operating mechanism (C) is hinged, described toggle is near the dead point of described flashing contact (1,2) make position, and moving by bottom (4b) association of its underpart and described driver (4).
5, switch according to claim 4, it is characterized in that, described dead point comprises two toggles (7,8) that are positioned at described driver (4) two sides by system (S), and described toggle (7,8) is connected with a junction that is bearing in described driver (4) bottom (4b).
6, according to claim 4 or 5 described switches, it is characterized in that, at one end be hinged forms described toggle (7 or/and 8) by two bars (9 or/and 10), and described bar (9,10) is hinged at the guide bar (12) that its other end and movable contact (2) and are hinged in the one second fixed bearing portion (13) respectively.
7, according to each described switch in the claim 4 to 6, it is characterized in that, described toggle (7 or/and 8) is formed by the double-throw crankshaft that is hinged to movable flashing contact (14), described double-throw crankshaft (14) comprises two single-arm crankshafts (15,16), described single-arm crankshaft (15,16) is hinged with the hinged connecting rod (17) of described drive rod (11) and one and guide bar (12) respectively, and described guide bar (12) is hinged with the second fixed bearing portion (13).
8, according to each described switch in the claim 1 to 3, it is characterized in that, described dead point by system (S) comprise at least one with the hinged cam (18) of a drive rod (11) of described operating mechanism (C), comprise a deep-slotted chip breaker (18a) on the described cam (18), one with described movable contact (2) strong bonded be that the pin (18b) of one slides in this groove (18a), it is hinged that described cam (18) and is hinged to the guide bar (12) of the second fixed bearing portion (13), and moving with bottom (4b) association of described driver (4).
According to each described switch in the claim 6 to 8, it is characterized in that 9, described first and second support sectors (6,13) are electrically connected with described first and second Ampereconductors (20,21) respectively.
10, according to each described switch in the claim 2 to 9, it is characterized in that, described spring (3) is around the polished rod part (22) that a screw (23) is installed, this screw (23) passes the top (4a) and the described first fixed bearing portion (6) of described driver (4), and screws in described static flashing contact (1).
11, according to each described switch in the aforesaid right requirement, it is characterized in that, switch disconnect last, described movable contact (2) contacts one at the last retainer (34) that forms of described driver (4), so that the impact energy that movable contact (2) motion is produced is absorbed by described spring (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9411775 | 1994-09-29 | ||
| FR9411775A FR2725303B1 (en) | 1994-09-29 | 1994-09-29 | MEDIUM VOLTAGE SWITCH OR CIRCUIT BREAKER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1125353A true CN1125353A (en) | 1996-06-26 |
| CN1062378C CN1062378C (en) | 2001-02-21 |
Family
ID=9467499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95117202A Expired - Fee Related CN1062378C (en) | 1994-09-29 | 1995-09-28 | Medium voltage switch or circuit breaker |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0704872B1 (en) |
| CN (1) | CN1062378C (en) |
| DE (1) | DE69516790T2 (en) |
| ES (1) | ES2147827T3 (en) |
| FR (1) | FR2725303B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301522C (en) * | 2002-05-13 | 2007-02-21 | 伊顿电气公司 | Drive rod for switch |
| CN103140908A (en) * | 2010-12-20 | 2013-06-05 | 三菱电机株式会社 | Switching apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9082563B2 (en) | 2010-03-08 | 2015-07-14 | Mitsubishi Electric Corporation | Power breaker |
| JP5150011B2 (en) * | 2010-12-20 | 2013-02-20 | 三菱電機株式会社 | Power switchgear |
| CN110544597B (en) * | 2019-09-30 | 2024-09-24 | 山东泰开高压开关有限公司 | Auxiliary arc extinguishing device for 800kV external grounding switch and use method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372353A (en) * | 1966-10-20 | 1968-03-05 | Electric Machinery Mfg Co | Toggle operated electric vacuum switch |
| DE3414016A1 (en) * | 1984-04-12 | 1985-10-17 | Siemens AG, 1000 Berlin und 8000 München | VACUUM SWITCHING DEVICE WITH A DRIVE DEVICE AND WITH A SPRING BASED ON THE MOVABLE CONNECTING PIN OF THE SWITCH TUBES |
| DE3726739A1 (en) * | 1987-08-07 | 1988-03-03 | Slamecka Ernst | Contact pressure-producing device especially for vacuum switches in a single-row or double-row arrangement |
| FR2677168B1 (en) | 1991-06-03 | 1994-06-17 | Merlin Gerin | MEDIUM VOLTAGE CIRCUIT BREAKER WITH REDUCED CONTROL ENERGY. |
| DE4133092A1 (en) * | 1991-09-30 | 1993-04-01 | Siemens Ag | MULTIPOLE VACUUM SWITCH WITH A POLAR DRIVE UNIT FOR EVERY VACUUM SWITCH TUBE |
| JPH05190063A (en) | 1992-01-17 | 1993-07-30 | Toshiba Corp | Vacuum circuit-breaker |
-
1994
- 1994-09-29 FR FR9411775A patent/FR2725303B1/en not_active Expired - Fee Related
-
1995
- 1995-09-05 DE DE1995616790 patent/DE69516790T2/en not_active Expired - Lifetime
- 1995-09-05 ES ES95410095T patent/ES2147827T3/en not_active Expired - Lifetime
- 1995-09-05 EP EP19950410095 patent/EP0704872B1/en not_active Expired - Lifetime
- 1995-09-28 CN CN95117202A patent/CN1062378C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301522C (en) * | 2002-05-13 | 2007-02-21 | 伊顿电气公司 | Drive rod for switch |
| CN103140908A (en) * | 2010-12-20 | 2013-06-05 | 三菱电机株式会社 | Switching apparatus |
| CN103140908B (en) * | 2010-12-20 | 2015-11-25 | 三菱电机株式会社 | Switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2725303A1 (en) | 1996-04-05 |
| DE69516790D1 (en) | 2000-06-15 |
| ES2147827T3 (en) | 2000-10-01 |
| DE69516790T2 (en) | 2000-11-16 |
| FR2725303B1 (en) | 1996-10-31 |
| EP0704872A1 (en) | 1996-04-03 |
| CN1062378C (en) | 2001-02-21 |
| EP0704872B1 (en) | 2000-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010221 Termination date: 20100928 |