CN107533932A - Electrical switchgear with double track cam - Google Patents
Electrical switchgear with double track cam Download PDFInfo
- Publication number
- CN107533932A CN107533932A CN201680021843.7A CN201680021843A CN107533932A CN 107533932 A CN107533932 A CN 107533932A CN 201680021843 A CN201680021843 A CN 201680021843A CN 107533932 A CN107533932 A CN 107533932A
- Authority
- CN
- China
- Prior art keywords
- arm
- cam
- track
- connector
- linear
- 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
-
- 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
- H01H33/02—Details
- H01H33/42—Driving mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
-
- 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
- H01H33/02—Details
- H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/74—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber wherein the break is in gas
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Transmission Devices (AREA)
Abstract
The present invention describes a kind of electrical switchgear, including：Support base (1), the support base (1) include fulcrum post (2), and cam (3) turns round around fulcrum post (2)；First actuating arm (4), there is one that is attached to cam to drive end to make the cam be turned round relative to base portion around fulcrum post for it；Second arm (5), it is used to carry out electric switch by the Linear Driving of the axis along the arm；Second arm has：A) first end, it is provided with positive electrical fitting (6), for inserting in female electrical connector (7) or being removed from female electrical connector (7), and；B) the second end, the second end is driven by means of being slidably connected part by cam revolution, the connector includes the second end for being fixed to the second arm and the first sliding part (8) slided in the first warp rail (9) of cam；And the driving end of the first actuating arm of cam, which is formed, is slidably connected part device, the connector includes the second sliding part (10) for being fixed to the end of the first arm and being slided in the second track (11) of cam.Described device is characterised by that the second track (11) includes linear track portion, and the linear track portion has the main shaft (12) through the swivel point of cam.
Description
The present invention relates to a kind of electrical switchgear with double track cam of preamble according to claim 1.
In release unit or decoupler device, particularly such as metal enclosed gas-insulated switchgear (GIS)
Or in the high-pressure installation of air insulated switch equipment (AIS), it can connect and especially disconnect electric connecting element, such as set
Count into insertion female electrical connector or the positive electrical fitting removed from female electrical connector.Therefore, provide electrical switchgear
With the mechanically connected or disconnection connector.
Particularly, in the off state, it is necessary to realize cut-offfing rapidly and reliably between male connector and cloudy connector.
In this respect, it is known that the example of switching device provided by Fig. 1, Fig. 2 and Fig. 3.
Fig. 1：The electrical switchgear with single track cam in closure connection status,
Fig. 2：The electrical switchgear with single track cam in middle off-state,
Fig. 3：The electrical switchgear with single track cam in final off-state.
Therefore, Fig. 1 shows a kind of electrical switchgear, including：
- support base (1), the support base (1) include fulcrum post (2), wherein, cam (3) returns around the fulcrum post (2)
Turn,
- the first actuating arm (4), first actuating arm (4) have a driving end for being attached to cam described to make
Cam turns round relative to base portion around fulcrum post,
- the second arm (5), second arm (5) are used to carry out electric switch by the Linear Driving of the axis along the arm,
- second arm has：
A) first end, the first end are provided with positive electrical fitting (6), and positive electrical fitting (6) is designed for insertion into
Removed in female electrical connector (7) or from female electrical connector (7), and
B) the second end, the second end are driven by the revolution of cam by means of being slidably connected part, the connector bag
The first sliding part (8) is included, first sliding part (8) is rigidly connected to the second end of the second arm and first curved in cam
Slided in bend road (9),
The driving end of first actuating arm of-cam is by the single rotary joint apparatus different from fulcrum post (2) (3') shape
Into, enabling apply torque (Mo) on the end, so that cam turns round.
In this case, this electrical switchgear with single track cam is in closure connection status, i.e. positive electricity gas
In connector (6) insertion female electrical connector (7).In other words, cloudy connector (7) is near the position of base portion (1).
Know that the entrance guide member is attached to the other end of the first actuating arm (4) of cam, single rotary joint apparatus is (3') away from institute
State entrance guide member or cloudy connector (7) positioning, on the contrary, the first sliding part (8) as close to the entrance guide member or
Cloudy connector (7) positioning.Therefore, male connector (6) is attached to the second arm (5), and the second arm (5) is attached to the first sliding part again
(8), male connector (6) inserts in the entrance guide member or cloudy connector (7) as much as possible.Therefore, first sliding part
(8) initial position on the first end in warp rail (9).
Fig. 2 shows the electrical switchgear for having single track cam with Fig. 1 identicals, but its separated shape in being in
State, i.e., in the range of the torque (Mo) applied by the driving end of the first actuating arm (4) of cam (3) is in maximum, and
And therefore can turn round cam by high driving torque, while more farther than in Fig. 1 by being retracted to cloudy connector (7)
The driving force (Fd) of axis parallel to male connector is provided from fixed base portion (1).The first actuating arm on cam (3)
(4) make a concerted effort (Fr) in principal direction reduces about 15% for the driving force (Fd) of the axis parallel to male connector, (Fr=
85% × Fd).In order to which the literature understands, frictional force is not considered.In addition, under the middle off-state, male connector (6) and the moon
Connector (7) disconnects, and so as to cause breakdown by electric arc, generally makes electricity by injecting inert gas or SF6 after it has been broken
Expulsion of arc goes out.In addition, the first sliding part (8) slides along track (9), the track (9) of hooked or circle " L " shape is designed to make sliding part
With the minimum friction forces at the edge of the track.
Fig. 3 shows the electrical switchgear for having single track cam with Fig. 2 identicals, but it is in male connector and the moon
The final off-state of connector (6,7) complete mechanical and electrical separation.Therefore, by cam (3) the first actuating arm (4) drive
The torque (Mo) that moved end portion applies returns to the scope of minimum value.Similarly, the first sliding part (8) in warp rail (9)
Two ends reach the end position of track.
Accompanying drawing 1 to 3 clearly demonstrate that with inverted order opposite to be used to (again) connect male connector and cloudy connector
Journey.
It should also be noted that the curved shape (circle " L " or hook) of the first track (9) is arranged to the half around cam (3)
More than, and the first end (slide positions in Fig. 1) of the first track (9) is than the second end (the sliding part position in Fig. 3
Put) further from fulcrum post (2).This trade shape make it that male connector (6) can be from the moon at middle off-state (Fig. 2)
Accelerate to retract in connector (7).This acceleration helps to reduce breakdown or quenching time.In this respect, with reference to being under the jurisdiction of this Shen
The publication FR2817389A that the company to ask someone submitted on November 30th, 2000.First, Fig. 1 of the announcement is to Fig. 6 and phase
Speak on somebody's behalf and bright disclose a kind of switching device similar with switching device in above-mentioned Fig. 1 to Fig. 3.Finally, the announcement includes Fig. 7,
Fig. 7 includes similar device, but the double track cam that there are two tracks all to bend, rather than convex with single warp rail
Wheel.
More specifically and by referring to replicating Fig. 7 in FR2817389A in Fig. 4 of the invention, and show
A kind of electrical switchgear (120), including：
- support base, the support base include fulcrum post (see cross), and cam (184) turns round around the fulcrum post,
There is one that is attached to cam to drive end to make for-the first actuating arm (186), first actuating arm (186)
The cam turns round relative to base portion around fulcrum post,
- the second arm (80), second arm (80) are used to electrically be opened by the Linear Driving of the axis along the arm
Close,
- second arm (80) has：
A) first end, the first end are provided with positive electrical fitting, and positive electricity gas stud connector design is into insertion female electrical
Removed in connector or from female electrical connector, and
B) the second end, by making cam revolution drive the second end, the connector by means of being slidably connected part
First including being rigidly connected to the second end of the second arm and being slided in the first warp rail (192a) of cam slides
Moving part (190a),
The driving end of the first actuating arm (186) of-cam, which is formed, is slidably connected part device, and the connector includes rigidity
Ground is connected to the end of the first arm and the second sliding part (190b) slided in the second track (192b) of cam.
This double track alternative solution of FR2817389A 18 to 31 rows of page 22 and Fig. 7 description can realize these
With FR2817389A Fig. 1 to Fig. 5 identicals breakdown speed (acceleration), and therefore with the literature including single track cam
Fig. 1 of description to Fig. 3 is compared without offer kinematic advantages.More accurately studied according to the slip to sliding part, sliding part exists
The distribution of cross force on the edge of respective rail seems to produce undesirable friction effect.
It is an object of the invention to propose a kind of faster opening velocity that can realize male connector and cloudy connector
Effective electrical switchgear, especially for the high-voltage applications of metal enclosed such as GIS breaker or decoupler.
Based on the electric switch dress shown in electrical switchgear and Fig. 1 to Fig. 3 including all double track cams as shown in Figure 4
Put, it is proposed that a kind of electrical switchgear of feature according to claim 1.In addition, had using what described accompanying drawing provided
The illustrative embodiments of profit and application describe the device：
Fig. 5：The electrical switchgear with double track cam in closure connection status,
Fig. 6：The electrical switchgear with double track cam in middle off-state,
Fig. 7：The electrical switchgear with double track cam in final off-state,
Fig. 8：The figure of the arm movement velocity of described device.
One group of dependent claims also illustrate that advantages of the present invention.
Therefore, Fig. 5 shows a kind of electrical switchgear, including：
- support base (1), the support base (1) include fulcrum post (2), wherein, cam (3) turns round around fulcrum post (2),
- the first actuating arm (4), first actuating arm (4) have a driving end for being attached to cam described to make
Cam turns round relative to base portion around fulcrum post,
- the second arm (5), second arm (5) are used to carry out electric switch by the Linear Driving of the axis along the arm,
- second arm has：
A) first end, the first end are provided with positive electrical fitting (6), and positive electrical fitting (6) is designed for insertion into
Removed in female electrical connector (7) or from female electrical connector (7), and
B) the second end, the second end drive by means of being slidably connected part by cam revolution, and the connector includes
First sliding part (8), first sliding part (8) are rigidly connected to the second end of the second arm and in the first bendings of cam
Slided in track (9),
The driving end of first actuating arm of-cam, which is formed, is slidably connected part device, and the connector includes second and slided
Part (10), second sliding part (10) are rigidly connected to the end of the first arm and in the second tracks (11) of cam
Slide,
Described device is characterised by that the second track (11) includes linear track portion, and the linear track portion has through convex
The main shaft (12) of the swivel point (2) of wheel.
Electrical switchgear with double track cam as shown in Figure 5 is in the closure similar with Fig. 1 in the case
Connection status, i.e., positive electrical fitting (6) are inserted in female electrical connector (7).Second sliding part (10) is located at the second track
(11) the end farthest from pivotal point (2).First sliding part (8) also is located at the farthest from pivotal point (2) of the first track (9)
End.
In the subsequent off-state (middle, then finally) shown in subsequent Fig. 6 and Fig. 7, the first track has curved
The slip geometry of bent (and then linear), so as to what is be combined for the position range with the second sliding part in the second track
For the position range in shape, the Linear Driving of the second arm is accelerated first sliding part, so as to also in this case
Produce the remarkable advantage shown in Fig. 8.
Fig. 6 shows the electrical switchgear in Fig. 5, but it is similar with the middle off-state in Fig. 2 in centre
Off-state.Male connector (6) disconnects with cloudy connector (7), so as to cause breakdown by electric arc, generally by after it has been broken
Inject inert gas or SF6 and make arc extinction.
In this case, the second sliding part (10) is located at the other end near pivotal point (2) of the second track (11)
At portion.Then, the first sliding part (8) is along the first track (9) to the first track (9) near the another of pivotal point (2)
One end is travelled more than 30%.
By the way that cloudy connector (7) is retracted to than being provided in Fig. 5 further from fixed base portion (1) parallel to male connector
(6) driving force (Fd) of axis.In this case, make a concerted effort in the principal direction of the first actuating arm (4) on cam (3)
(Fr) axis of male connector is also desirably parallel to, therefore the axis parallel to male connector of (Fr) equal to 100% of making a concerted effort
Driving force (Fd).Therefore, the first arm is attached to for making the arm edge linear with the axis direction identical of first arm
The mechanism of direction motion, mechanism rotate freely relative to support base.First long linear arms and the second long linear arms are for its phase
All positions that the sliding part answered is located in a track of cam are respectively formed the parallel motion along its axis.Although it is somebody's turn to do " parallel "
Power transmission layout can allow the rotation of the first arm by realizing the totally tansitive of the power but optimal.
In order to which the literature understands, frictional force is not also considered.In addition, the first sliding part (8) slides along track (9), track (9)
Hooked or circle " L " shape be designed to the minimum friction forces that make the edge of sliding part and the track.
In simplest form, the second track of the apparatus according to the invention is linear elliptical openings.It should note
Meaning, the first track and the second track describe a kind of question mark shape (), but the point of question mark shape or the second track are ellipses
's.Therefore, this shape of track ensure that the acceleration of the first sliding part (8), so that male connector (6) is from cloudy connector
(7) accelerate to retract in entrance guide member.
Finally, sun can (7') be made in the off state by the tubular inlet guide member of the first arm (4) and actuated by cams even
Fitting (6) passes through to be skidded off in Guan Ercong the moon connector (7), (7') the pipe can move relative to support base (1).
Fig. 7 shows the electrical switchgear in Fig. 5 or Fig. 6, but it similar with the final off-state in Fig. 3 is in
Final off-state.Therefore, male connector (6) is fully disconnected with cloudy connector (7).
In this case, the second sliding part (10) is again positioned at farthest from pivotal point (2) of the second track (11)
Beginning end.Then, the first sliding part (8) is along the first track (9) to the first track (9) near pivotal point (2)
The other end travel whole process.
Fig. 8 shows the example of the first arm of described device and the movement velocity of the second arm, above-mentioned favourable to illustrate
Acceleration effect.
Shown curve is motion (Di) value (%) as the function of the chronomere (Tu) between 0 and 1.Therefore, first
Curve (DS) shows the constant retraction speed of the first arm (4) (during being retracted from entrance guide member 7).Second curve
(SC) actuating speed of the male connector (6) of the device of one in Fig. 1 to Fig. 3 (or 4) is shown.As can be seen that
[0.2；0.7] in the period, the retraction speed of the second arm or male connector (6) is equal (simultaneously with the retraction speed of the first arm (4)
And opposite).Finally, the 3rd curve (DC) shows the driving of the male connector (6) of the device of one in Fig. 5 to Fig. 7
Speed.As can be seen that [0.31；0.46] in the period (HS), the retraction speed of the second arm or male connector (6) is than first
The retraction speed (SC) of arm (4) is big (and opposite).In the high speed period (HS), 1.5 times of acceleration is implicitly present in, this understands
Ground illustrates the desired effects of the apparatus according to the invention, to disconnect more quickly, so that more effectively arc extinguishing.
Claims (6)
1. a kind of electrical switchgear, including：
- support base (1), the support base (1) include fulcrum post (2), wherein, cam (3) returns around the fulcrum post (2)
Turn,
- the first actuating arm (4), first actuating arm (4) have a driving end for being attached to the cam to make
Cam is stated to turn round around the fulcrum post relative to the base portion,
- the second arm (5), second arm (5) are used to carry out electric switch by the Linear Driving of the axis along the arm,
Second arm has：
A) first end, the first end are provided with positive electrical fitting (6), and the positive electrical fitting (6) is designed to insert
Enter in female electrical connector (7) or removed from the female electrical connector (7), and
B) the second end, the revolution by the cam drive the second end, the connection by means of the connector of slip
Part includes being rigidly connected to the second end of second arm and slided in the first warp rail (9) of the cam
Dynamic the first sliding part (8),
The driving end of the first actuating arm of-cam forms the connector device slided, the connector bag
Include the end for being rigidly connected to first arm and second slided in the second track (11) of the cam is slided
Moving part (10),
Characterized in that,
Second track (11) includes linear track portion, and the linear track portion has the master through the swivel point of the cam
Axis (12).
2. device according to claim 1, wherein, in the off state, first track is with linear after bending
Slip geometry so that described in being combined for the position range with second sliding part in second track
For the position range of first sliding part, the Linear Driving of second arm is accelerated.
3. the device described in one in claim 1 to 2, wherein, first arm is attached to for making the arm edge
The mechanism moved with the axis direction identical linear direction of first arm, the mechanism is relative to the support base
Rotate freely.
4. the device described in one in claims 1 to 3, wherein, the first linear arm of the length and second arm
A rail being located at for the corresponding sliding part of first arm and second arm in the track of the cam
All positions on road are respectively formed the parallel motion of the axis along first arm and second arm.
5. the device described in one in Claims 1-4, wherein, second track is linear elliptical openings.
6. the device described in one in claim 1 to 5, wherein, first track and second track description
Question mark shape (), the point of the question mark shape is oval.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15290105.4 | 2015-04-15 | ||
| EP15290105.4A EP3082144B1 (en) | 2015-04-15 | 2015-04-15 | Electrical switching device with two-track cam |
| PCT/EP2016/054856 WO2016165877A1 (en) | 2015-04-15 | 2016-03-08 | Electrical switching device having a two-track cam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107533932A true CN107533932A (en) | 2018-01-02 |
| CN107533932B CN107533932B (en) | 2019-03-26 |
Family
ID=52997996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680021843.7A Active CN107533932B (en) | 2015-04-15 | 2016-03-08 | Electrical switchgear with double track cam |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3082144B1 (en) |
| CN (1) | CN107533932B (en) |
| HR (1) | HRP20171782T1 (en) |
| WO (1) | WO2016165877A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357901A (en) * | 2000-11-30 | 2002-07-10 | 施耐德电器高电压产品公司 | High-voltage electric switch unit with composite motion |
| CN2651924Y (en) * | 2003-09-29 | 2004-10-27 | 深圳市光辉电器实业有限公司 | Vacuum loading switches |
| CN200947393Y (en) * | 2006-08-18 | 2007-09-12 | 宁波奇乐电器实业总公司 | Automatic change-over electric appliance |
| CN202018932U (en) * | 2011-04-28 | 2011-10-26 | 上海市电力公司 | Double-breakpoint universal breaker |
| DE102011078483A1 (en) * | 2011-06-30 | 2013-01-03 | Siemens Aktiengesellschaft | Electrical switching device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29724842U1 (en) * | 1996-05-24 | 2004-09-30 | Siemens Ag | HV circuit breaker with two drivable switch contact pieces - has drive element for second light arc contact piece attached to insulating nozzle for quenching gas and driven with it as well as being arranged radially inside permanent current contact pieces |
| JP2004281175A (en) * | 2003-03-14 | 2004-10-07 | Tm T & D Kk | Gas circuit breaker |
| EP2337047B1 (en) * | 2009-12-18 | 2014-07-02 | Alstom Grid GmbH | Electric high voltage switch and switch position display for same |
| CN105453209B (en) * | 2013-08-29 | 2017-05-24 | 株式会社日立制作所 | Gas circuit breaker |
-
2015
- 2015-04-15 EP EP15290105.4A patent/EP3082144B1/en active Active
-
2016
- 2016-03-08 CN CN201680021843.7A patent/CN107533932B/en active Active
- 2016-03-08 WO PCT/EP2016/054856 patent/WO2016165877A1/en active Application Filing
-
2017
- 2017-11-16 HR HRP20171782TT patent/HRP20171782T1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357901A (en) * | 2000-11-30 | 2002-07-10 | 施耐德电器高电压产品公司 | High-voltage electric switch unit with composite motion |
| CN2651924Y (en) * | 2003-09-29 | 2004-10-27 | 深圳市光辉电器实业有限公司 | Vacuum loading switches |
| CN200947393Y (en) * | 2006-08-18 | 2007-09-12 | 宁波奇乐电器实业总公司 | Automatic change-over electric appliance |
| CN202018932U (en) * | 2011-04-28 | 2011-10-26 | 上海市电力公司 | Double-breakpoint universal breaker |
| DE102011078483A1 (en) * | 2011-06-30 | 2013-01-03 | Siemens Aktiengesellschaft | Electrical switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107533932B (en) | 2019-03-26 |
| EP3082144A1 (en) | 2016-10-19 |
| WO2016165877A1 (en) | 2016-10-20 |
| EP3082144B1 (en) | 2017-10-18 |
| HRP20171782T1 (en) | 2017-12-29 |
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Effective date of registration: 20220829 Address after: Munich, Germany Patentee after: Siemens energy Global Ltd. Address before: Munich, Germany Patentee before: SIEMENS AG |