CN107533932B - Electrical switchgear with double track cam - Google Patents
Electrical switchgear with double track cam Download PDFInfo
- Publication number
- CN107533932B CN107533932B CN201680021843.7A CN201680021843A CN107533932B CN 107533932 B CN107533932 B CN 107533932B CN 201680021843 A CN201680021843 A CN 201680021843A CN 107533932 B CN107533932 B CN 107533932B
- Authority
- CN
- China
- Prior art keywords
- cam
- arm
- track
- connector
- sliding
- 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
- 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, comprising: support base (1), the support base (1) include fulcrum post (2), and cam (3) is turned round around fulcrum post (2)；First actuating arm (4) has a driving end for being attached to cam to turn round the cam around fulcrum post relative to base portion；Second arm (5) is used to carry out electric switch by the Linear Driving of the axis along the arm；Second arm includes a) first end, is provided with positive electrical fitting (6), for being inserted into female electrical connector (7) or being removed from female electrical connector (7), and；B) the second end is driven the second end by cam revolution by means of being slidably connected part, and the connector includes the first sliding part (8) for being fixed to the second end of the second arm and sliding 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, and the connector includes the second sliding part (10) for being fixed to the end of the first arm and sliding in the second track (11) of cam.Described device is characterized in that the second track (11) includes linear track portion, which has the main shaft (12) of the swivel point across cam.
Description
The present invention relates to a kind of electrical switchgears with double track cam of preamble according to claim 1.
In release unit or decoupler device, especially such as metal enclosed gas-insulated switchgear (GIS)
Or in the high-pressure installation of air insulated switch equipment (AIS), it can connect and particularly disconnect electric connecting element, such as set
The positive electrical fitting counting into insertion female electrical connector or being removed from female electrical connector.For this purpose, providing electrical switchgear
With the mechanically connected or disconnection connector.
In particular, in the off state, need to realize cut-offfing rapidly and reliably between male connector and negative 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 intermediate off-state,
Fig. 3: the electrical switchgear with single track cam in final off-state.
Therefore, Fig. 1 shows a kind of electrical switchgear, comprising:
Support base (1), the support base (1) include fulcrum post (2), wherein cam (3) is returned around the fulcrum post (2)
Turn,
- the first actuating arm (4), it is described to make which has a driving end for being attached to cam
Cam is turned round relative to base portion around fulcrum post,
- the second arm (5), second arm (5) carry out electric switch for the Linear Driving by the axis along the arm,
Second arm includes
A) first end, the first end are provided with positive electrical fitting (6), and positive electrical fitting (6) is designed for insertion into
It is 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 packet
The first sliding part (8) are included, which is rigidly connected to the second end of the second arm and first curved in cam
Sliding 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
At, make it possible on the end apply torque (Mo), so that cam be made to turn round.
In this case, this electrical switchgear with single track cam is in closure connection status, i.e. positive electricity gas
Connector (6) is inserted into female electrical connector (7).In other words, negative 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') far from institute
State entrance guide member or negative connector (7) position, on the contrary, the first sliding part (8) as close to the entrance guide member or
Negative 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) is inserted into as much as possible in the entrance guide member or negative connector (7).Therefore, first sliding part
(8) initial position on the first end in warp rail (9).
Fig. 2 shows the electrical switchgears with single track cam identical with Fig. 1, but its be in separated shape
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 value, and
And therefore cam can be made to turn round by high driving torque, and at the same time more farther than in Fig. 1 by being retracted to negative connector (7)
The driving force (Fd) for being parallel to the axis of male connector is provided from fixed base portion (1).The first actuating arm on cam (3)
(4) resultant force (Fr) in principal direction is to be parallel to the driving force (Fd) of the axis of male connector to reduce about 15%, (Fr=
85% × Fd).In order to which the literature understands, frictional force is not considered.In addition, among this when it is disconnected, male connector (6) and yin
Connector (7) disconnects, to cause to puncture by electric arc, usually makes electricity and injecting inert gas or SF6 after it has been broken
Expulsion of arc goes out.In addition, the first sliding part (8) is slided 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 with single track cam identical with Fig. 2, but it is in male connector and yin
The final off-state of connector (6,7) complete mechanical and electrical separation.Therefore, by the drive of the first actuating arm (4) of cam (3)
The torque (Mo) that moved end portion applies returns to the range of minimum value.Similarly, the first sliding part (8) in warp rail (9)
The end position of two ends arrival track.
Attached drawing 1 to 3 is clearlyd demonstrate opposite for connecting male connector and negative connector (again) with inverted order
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
Set) further from fulcrum post (2).This trade shape makes at intermediate off-state (Fig. 2), and male connector (6) can be from yin
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.Firstly, Fig. 1 to Fig. 6 and phase of the announcement
It speaks on somebody's behalf and bright discloses a kind of switching device similar with switching device of the above-mentioned Fig. 1 into Fig. 3.Finally, the announcement includes Fig. 7,
Fig. 7 includes similar device, but all curved double track cam of track there are two having, 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), comprising:
Support base, the support base include fulcrum post (see cross), and cam (184) is turned round around the fulcrum post,
- the first actuating arm (186), first actuating arm (186) have a driving end for being attached to cam to make
The cam is turned round relative to base portion around fulcrum post,
- the second arm (80), second arm (80) are electrically opened for the Linear Driving by the axis along the arm
It closes,
Second arm (80) includes
A) first end, the first end are provided with positive electrical fitting, and positive electricity gas stud connector design is at insertion female electrical
It is 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
Including being rigidly connected to the second end of the second arm and being slided in middle first slided of the first warp rail (192a) of cam
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
The second sliding part (190b) that ground is connected to the end of the first arm and slides in the second track (192b) of cam.
These may be implemented in this double track alternative solution of 18 to 31 rows of page 22 and Fig. 7 description of FR2817389A
Breakdown speed (acceleration) identical with Fig. 1 of FR2817389A to Fig. 5, and therefore and in the literature including single track cam
Fig. 1 to Fig. 3 of description is compared without providing kinematic advantages.It is more accurately studied according to the sliding to sliding part, sliding part exists
The distribution of cross force on the edge of respective rail seems to generate undesirable friction effect.
It is an object of the invention to propose a kind of faster opening velocity that male connector and negative connector may be implemented
Effective electrical switchgear, especially for the high-voltage applications of such as GIS metal enclosed breaker or decoupler.
It is filled based on electrical switchgear and Fig. 1 to the electric switch shown in Fig. 3 for including double track cam such as shown in Fig. 4
It sets, proposes a kind of electrical switchgear according to the features of claim 1.In addition, being had using what described attached drawing provided
The illustrative embodiments of benefit and application are to 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 intermediate 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 illustrates advantages of the present invention.
Therefore, Fig. 5 shows a kind of electrical switchgear, comprising:
Support base (1), the support base (1) they include fulcrum post (2), wherein and cam (3) is turned round around fulcrum post (2),
- the first actuating arm (4), it is described to make which has a driving end for being attached to cam
Cam is turned round relative to base portion around fulcrum post,
- the second arm (5), second arm (5) carry out electric switch for the Linear Driving by the axis along the arm,
Second arm includes
A) first end, the first end are provided with positive electrical fitting (6), and positive electrical fitting (6) is designed for insertion into
It is 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 the first bending in cam
Sliding in track (9),
The driving end of first actuating arm of cam, which is formed, is slidably connected part device, and the connector includes the second sliding
Part (10), second sliding part (10) are rigidly connected to the end of the first arm and in the second tracks (11) of cam
Sliding,
Described device is characterized in that the second track (11) includes linear track portion, which has across 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 into 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 subsequent Fig. 6 and subsequent off-state (intermediate, then finally) shown in Fig. 7, the first track has curved
The sliding geometry of bent (and then linear), so as to for being combined with position range of second sliding part in the second track
First sliding part is for the position range in shape, and the Linear Driving of the second arm is accelerated, thus also in this case
Generate remarkable advantage shown in Fig. 8.
Fig. 6 shows the electrical switchgear in Fig. 5, but it is similar with the intermediate off-state in Fig. 2 in centre
Off-state.Male connector (6) and negative connector (7) disconnect, to cause to puncture by electric arc, usually by after it has been broken
It injects inert gas or SF6 and makes 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) 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 being retracted to negative connector (7) than being parallel to male connector further from fixed base portion (1) in Fig. 5 to provide
(6) driving force (Fd) of axis.In this case, the resultant force in the principal direction of the first actuating arm (4) on cam (3)
(Fr) it is also desirably parallel to the axis of male connector, therefore resultant force (Fr) is equal to 100% axis for being parallel to male connector
Driving force (Fd).Therefore, the first arm is attached to for making the arm along identical with the axis direction of first arm linear
The mechanism of direction movement, mechanism are rotated 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 being somebody's turn to do " parallel "
Power transmitting 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) is slided along track (9), track (9)
Hooked or circle L shape be designed to make the minimum friction forces at 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 infuse
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 ensures the acceleration of the first sliding part (8), so that male connector (6) is from negative connector
(7) accelerate to retract in entrance guide member.
Finally, sun (7') can 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 the Guan Ercong yin connector (7), (7') the pipe can be moved 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 negative connector (7).
In this case, the second sliding part (10) is again positioned at the farthest from pivotal point (2) of the second track (11) and rises
At top portion.Then, the first sliding part (8) 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 advantageous to illustrate
Acceleration effect.
Shown curve is movement (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) driving speed of the male connector (6) according to one device 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 and the retraction speed of the first arm (4) of the second arm or male connector (6) are equal (simultaneously
And opposite).Finally, third curve (DC) shows the driving of the male connector (6) of one device according to Fig. 5 into 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), it is implicitly present in 1.5 times of acceleration, this understands
Ground illustrates the desired effects of the apparatus according to the invention, to disconnect more quickly, thus more effectively arc extinguishing.
Claims (5)
1. a kind of electrical switchgear, comprising:
Support base (1), the support base (1) include fulcrum post (2), wherein cam (3) is returned 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
It states cam and is turned round relative to the support base around the fulcrum post,
- the second arm (5), second arm (5) are electrically opened for the Linear Driving by the axis along second arm
It closes,
Second arm includes
A) first end, the first end are provided with positive electrical fitting (6), and the sun electrical fitting (6) is designed to insert
Enter in female electrical connector (7) or is removed from the female electrical connector (7), and
B) the second end drives the second end, the connection by means of the connector of sliding by the revolution of the cam
Part includes being rigidly connected to the second end of second arm and sliding in the first warp rail (9) of the cam
Dynamic the first sliding part (8),
The driving end of first actuating arm of the cam forms the connector device of sliding, the connector dress
Set the driving end including being rigidly connected to first actuating arm and in the second track (11) of the cam
The second sliding part (10) of sliding,
It is characterized in that,
Second track (11) includes linear track portion, and the linear track portion has the master of the fulcrum post across the cam
Axis (12),
Wherein, first warp rail and second track describe question mark shape (?), the point of the question mark shape is ellipse
It is circular.
2. the apparatus according to claim 1, wherein in the off state, first warp rail has after bending
Linear sliding geometry, so that for combining with position range of second sliding part in second track
For the position range of first sliding part, the Linear Driving of second arm is accelerated.
3. according to claim 1 to device described in one in 2, wherein first actuating arm is attached to described for making
The mechanism that first actuating arm is moved along linear direction identical with the axis direction of first actuating arm, the mechanism phase
The support base is rotated freely.
4. according to claim 1 to device described in one in 2, wherein long linear first actuating arm and described the
Two arms are located in the track of the cam the corresponding sliding part of first actuating arm and second arm
A track on all positions be respectively formed the parallel motion of the axis along first actuating arm and second arm.
5. according to claim 1 to device described in one in 2, wherein second track is linear elliptical openings.
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 CN107533932A (en) | 2018-01-02 |
| CN107533932B true 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 |
|---|---|
| EP3082144A1 (en) | 2016-10-19 |
| WO2016165877A1 (en) | 2016-10-20 |
| CN107533932A (en) | 2018-01-02 |
| 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 |