CN106558444B - A kind of novel high-pressure switch - Google Patents
A kind of novel high-pressure switch Download PDFInfo
- Publication number
- CN106558444B CN106558444B CN201510620843.6A CN201510620843A CN106558444B CN 106558444 B CN106558444 B CN 106558444B CN 201510620843 A CN201510620843 A CN 201510620843A CN 106558444 B CN106558444 B CN 106558444B
- Authority
- CN
- China
- Prior art keywords
- contact arm
- disconnecting switch
- switch contact
- bevel gear
- switch
- 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
- H01H33/60—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
-
- 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
- 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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Abstract
The present invention relates to a kind of novel high-pressure applied in high-voltage switch gear electric field switches, particular with the vacuum switch of disconnecting switch.The vacuum switch includes: that there are two insulators, two insulating cylinders and arc-chutes casting together insulator (17) for band；Support the pedestal (2) of all components；The transmission main shaft (4) of switch；It insulate spinner handle (9)；Arc-chutes static side bracket (12)；Lower disconnecting switch contact arm (14)；Upper disconnecting switch contact arm (36)；Vacuum interrupter (16)；Moving contact protective cover (27)；Spring touch finger (18), (21)；Guide and limit plate (20)；Thread belt (29)；Worm screw (31)；Worm gear (23).The switch is combined with upper and lower disconnecting switch, the upper and lower vertical telescopic of disconnecting switch contact arm is mobile, and when withdrawal ensconces in insulating sheath again, and two insulating sheaths and pole are integrated again, the space occupied is dramatically reduced, the length of galvanic circle is also shortened.
Description
Technical field
The present invention relates to high pressure (3.6kV~40.5kV) switch, especially indoor high-voltage vacuums to switch.
Background technique
Currently, well known high-voltage switch gear feature is as follows:
1. switch (can be breaker, can also be on-load switch or contactor) as the independent component in switchgear not
It is combined with disconnecting switch, reconnects with bus when use.This just brings following problem:
A. since each element is independent, the volume occupied after connecting in cabinet is very huge；
B. since each element is independent, the galvanic circle formed after connecting in cabinet is very long, tie point is more, increases hair
Heat reduces current-carrying capability；
C. disconnecting switch mostly uses greatly single-arm rotary type, and the space occupied is also very big.
2. largely using organic insulating material to reduce volume.This just brings following problem:
A. organic insulating material wants aging, especially accelerated ageing at high temperature over time, and dielectric strength reduces, and is easy
Cause breakdown accident；
B. insulating materials is typically all the non-conductor of heat, influences to radiate, and increases temperature rise；
Although to make entire handcart mobile when operating 3. withdraw-type switch cabinet insulating contact is combined with switch,
It is very heavy.In addition, the contact situation of dynamic and static contact can not be observed outside cabinet, it is unfavorable for being safely operated；
4. switch arc-chutes are combined with the upper and lower contact arm of disconnecting switch and its driving mechanism, on disconnecting switch contact arm,
Lower stretching motion, conductive parts are exposed.Although can save very large space compared with previous frame mode, switch goes out
Arc chamber, the external insulation cylinder of contact arm, conductive component etc. not the casting of sealing together, the space occupied or bigger.
5. also having using upper and lower telescopic disconnecting switch, but avoid interfering when separating brake for upper and lower contact arm, all use
Alternating expression arrangement, i.e., the center line of upper and lower contact arm are respectively placed at two parallel insulating cylinders not in a vertical line
Interior, the space occupied is big, and when disconnecting switch is closed a floodgate because of stress not point-blank, will cause entire pole inclination.
6. operation is very difficult since volume is big, quality weight, also it is unfavorable for electric operating disconnecting switch.
Technical solution
It is an object of the invention to a kind of novel high-pressure switch is provided to solve drawbacks described above.
Novel high-pressure switch includes: directly that switch arc-chutes and switch touching arm cylinder and conductive parts are primary
The insulator of castable；One contact arm be inserted into upper and lower disconnecting switch contact arm in the inner hole of another contact arm and its
Drive components；Be separately mounted to two-stage bevel gear between upper and lower disconnecting switch transmission shaft and upper and lower disconnecting switch contact arm,
Insulate spinner handle；External screw thread on upper and lower disconnecting switch contact arm；The dog link being inserted into contact arm groove；The screwed cone of inner hole
Gear.
A kind of above-mentioned novel high-pressure switch, which is characterized in that the high-voltage switch gear further include: the tubular that outer diameter does not wait
The outer diameter that upper and lower disconnecting switch contact arm, i.e. major diameter of thread are less than conduction contact part.Wherein, upper and lower disconnecting switch contact arm is dividing
It is wrapped up when lock by an insulating cylinder, to reduce occupied space.
Beneficial effect
1. switch is combined into an element with disconnecting switch group, arc-chutes, isolation contact arm insulating cylinder and conduction zero
Part pours into an insulator, while avoiding electric conductor seldom exposed as far as possible.In this way, recombinant is not more when using in cabinet
A element is dramatically reduced volume, reduces cost；
2. disconnecting switch contact arm uses upper and lower telescoping movement, especially upper and lower disconnecting switch contact arm shares an insulation
Cylinder, a contact arm are inserted into the inner hole of another contact arm, reduce the volume of occupancy.In addition, at runtime, insulation shield
Set is not subject to high voltage, to security implication very little；
3. reducing the use of organic insulating material, the risk of insulation ag(e)ing is reduced；
4. it can be observed that the contact condition of contact, guarantees operational safety；
5. increase between electrical body, electrical body over the ground between air distance, more guarantee safety；
6. the labour-saving kind of drive keeps operation very light, is more convenient for realizing electric operating disconnecting switch.
Detailed description of the invention
Fig. 1 is state (only draw a pole, can with multipole) of the high-voltage switch gear when disconnecting switch separating brake；
Fig. 2 is state of the high-voltage switch gear when disconnecting switch is closed a floodgate；
Fig. 3 is sectional view along A-A.
In figure: 1- idler wheel；2- frame；3- drive bevel gear；Disconnecting switch transmission shaft under 4-；5- dynamic bevel gear；6- master
Axis connecting lever；7- switch spindle；8- connecting lever；9- pole insulator；10- vacuum interrupter；The upper disconnecting switch transmission shaft of 11-；12- cone
Gearcase；13- thermal shrinkable sleeve；14- connector sleeve；15- insulation spinner handle；16- guide plate；The upper second level drive bevel gear of 17-；18- rotation stop
Bar；The upper disconnecting switch moving contact of 19-；The upper second level dynamic bevel gear of 20-；21- upper clamp plate；22- ball；23- lower clamp plate；On 24-
Bevel gear frame；The upper conductive plate of 25-；26- spring touch finger；The upper disconnecting switch contact arm of 27-；28- arc-chutes guide plate；29- arc-chutes
Leading-out terminal；30- busbar；31- oscillating bearing；Disconnecting switch contact arm under 32-；33- isolation leg；34- insulated connecting rod；Under 35-
Conductive plate；Second level dynamic bevel gear under 36-；37- mounting surface；Disconnecting switch moving contact under 38-；Second level drive bevel gear under 39-；
Bevel gear frame under 40-；41- bearing；42- connecting lever (sub-gate position)；43- insulated pull rod；44- contact pressure spring.
Specific embodiment
The high-voltage switch gear includes:
(1) idler wheel 1- supports entire high-voltage switch gear, and can move on plane (37)；
(2) each components of frame 2- are mounted directly or indirectly on frame (2), form a high-voltage switch gear entirety；
(3) drive bevel gear 3- isolator operation transmission is used；
(4) disconnecting switch transmission shaft 4- operates lower disconnecting switch and uses under.Receive the torque transmitted, then passes through drive bevel gear
(3) dynamic bevel gear (5), insulation spinner handle (15), second level drive bevel gear (39), second level dynamic bevel gear (36) are passed to, most
Lower disconnecting switch contact arm (32) is arrived afterwards, it, can upper and lower stretching motion by lead screw principle；
(5) dynamic bevel gear 5- receive drive bevel gear (3) transfer torque to insulation spinner handle (15)；
(6) main shaft connecting lever 6- switch operation transmission is used；
(7) switch spindle 7- the power of operating mechanism be transmitted to main shaft connecting lever (6), switch operation insulated pull rod (43), turn
Arm (8), is finally transmitted to the moving contact of vacuum interrupter (10), makes its movement；
(8) connecting lever 8- changes the direction of the power from insulated pull rod (43), drives oscillating bearing (31) to move above and below, together
When drive vacuum interrupter (10) moving contact move above and below；
(9) pole insulator 9- is poured vacuum interrupter (10) and its attachment together or is fixed together, while shape
At two insulators (with frame (2) fixed use), an insulating cylinder (place after upper and lower disconnecting switch contact arm is shunk by (open position)
Wherein) and shield.Shield can block electrical body, to reduce air distance alternate and over the ground；
(10) vacuum interrupter 10- plays the role of cut-offfing and closing normal current, improper electric current；
(11) disconnecting switch transmission shaft 11- receives the torque that external transmitting comes on, then is passed to by drive bevel gear (3)
Dynamic bevel gear (5), insulation spinner handle (15), second level drive bevel gear (17), second level dynamic bevel gear (20), finally to upper isolation
Switching contact arm (27) can upper and lower stretching motion by lead screw principle；
(12) bevel gear box 12- installs fixed bevel gear (3,5) and uses；
(13) thermal shrinkable sleeve 13- fixed operating sleeve (14) trundle is used；
(14) synchronous turn of connector sleeve 14- connection dynamic bevel gear (5) and insulation spinner handle (15), second level bevel gear (17,39)
It employs；
(15) insulation spinner handle 15- insulate and transmits torque to second level bevel gear (17,39)；
(16) guide plate 16- is oriented to disconnecting switch contact arm and uses；
(17) second level drive bevel gear 17- transmits torque and uses on；
(18) dog link 18- prevents the rotation of disconnecting switch contact arm from using；
(19) static contact on disconnecting switch moving contact 19- and switchgear cooperates, and plays connection and isolation galvanic circle
Effect；
(20) second level dynamic bevel gear 20- transmits torque and rotary motion is become by lead screw principle the straight line of contact arm on
Movement；
(21) ball (22) are clamped in upper clamp plate 21- and lower clamp plate (23), make second level dynamic bevel gear (20,36) can be free
Rotation；
(22) ball 22- is clipped between upper clamp plate (21) and lower clamp plate (23) and can roll, and plays the role of bearing support；
(23) ball (22) are clamped in lower clamp plate 23- and upper clamp plate (21), make second level dynamic bevel gear (20,36) can be free
Rotation；
(24) epicone tooth rest 24- supports bevel gear (17,20) to use；
(25) use of the electrical connection between contact arm (27) is isolated in conductive plate 25- connection vacuum interrupter (10) static side on；
(26) spring touch finger 26- plays the role of the sliding between moving component and stationary parts and is electrically connected；
(27) disconnecting switch contact arm 27- receives the driving of upper and lower active force, plays conduction by the external screw thread of outer wall on
And the effect of isolation；
(28) arc-chutes guide plate 28- is oriented to arc-chutes moving contact and uses；
(29) arc-chutes leading-out terminal 29- is used by spring touch finger (26) lead-out wire；
(30) busbar 30- arc-chutes are electrically connected use with lower disconnecting switch；
(31) oscillating bearing 31- is driven uses to arc-chutes；
(32) disconnecting switch contact arm 32- receives the driving of upper and lower active force, plays conduction by the external screw thread of outer wall under
And the effect of isolation；
(33) isolation leg 33- plays the role of insulation and support；
(34) each isolation leg of insulated connecting rod 34- connection three-phase (33) improves intensity and stability；
(35) one end lower conducting plate 35- is moved guide rod with arc-chutes (10) by busbar (30) and is connect, and one end passes through spring
Fingertip (26) is connect with lower disconnecting switch contact arm (32), guarantees vacuum interrupter (10) moving contact and lower disconnecting switch contact arm (32)
Electrical connection is kept when disconnecting switch is closed a floodgate；
(36) second level dynamic bevel gear 36- drives lower disconnecting switch contact arm (32) to use under；
(37) plane of mounting surface 37- switch installation；
(38) static contact under on disconnecting switch moving contact 38- and switchgear cooperates, and plays connection and isolation galvanic circle
Effect；
(39) second level drive bevel gear 39- is engaged with lower second level dynamic bevel gear (36) under, drives lower disconnecting switch contact arm
(32) it uses；
(40) bevel gear frame 40- supports bevel gear (36,39) to use under；
(41) bearing 41- supports lower second level drive bevel gear (39) to use；
(42) connecting lever (sub-gate position) 42- drives vacuum interrupter (10) moving contact to move above and below；
(43) insulated pull rod 43- transmits the torque from operating mechanism to control the dynamic of vacuum interrupter (10) moving contact
Make, while playing the insulating effect between electrical body and grounding body；
(44) arc extinguishing chamber contact pressure spring 44- allow vacuum interrupter (10) dynamic and static contact between close a floodgate when maintain enough
Pressure.
Upper and lower static contact isolation switch not shown in the figure, this is a kind of component well known in the art, is mounted on switch
In cabinet contact box.
The invention will be further described for 1~attached drawing 3 and embodiment with reference to the accompanying drawing:
1. switching splitting or integrating lock process:
1. switch operation mechanism combined floodgate drives switch spindle (7) to rotate counterclockwise (see attached drawing 1) after starting movement；
2. switch spindle (7) drives switch operation insulated pull rod (43) to move right by main shaft connecting lever (6)；
3. insulated pull rod (43) pushes connecting lever (8) that vacuum interrupter (10) moving contact is driven to move upwards again, finally close a floodgate
In place；
4. arc extinguishing chamber contact pressure spring (44) continues to be compressed to certain degree after closing a floodgate, move vacuum interrupter (10),
Certain pressure is kept between static contact；
5. separating brake process is in contrast.
2. disconnecting switch splitting or integrating lock process
1. when (upper and lower disconnecting switch is generally synchronous for upper disconnecting switch transmission shaft (11) or lower disconnecting switch transmission shaft (4)
Splitting or integrating lock), (referring to attached drawing 1) is rotated by after the torque drive of operating mechanism, the drive bevel gear installed thereon (3)
Drive dynamic bevel gear (5) rotation；
2. dynamic bevel gear (5) drives upper and lower second level drive bevel gear (17,39) rotation by insulation spinner handle (15)；
3. upper and lower second level drive bevel gear (17,39) drives upper and lower second level dynamic bevel gear (20,36) rotation；
4. upper and lower second level dynamic bevel gear (20,36)) inner hole T-type internal screw thread and upper and lower disconnecting switch contact arm (27,
32) the externally threaded engagement of T-type on pushes upper and lower disconnecting switch contact arm (27,32) to move up and down, and completes the mistake of splitting or integrating lock
Journey.
5. there is a shoulder in the tail portion of upper and lower disconnecting switch contact arm (27,32), it is certain which is greater than major diameter of thread
Amount.Shoulder cannot be moved up again by upper and lower bevel gear frame (24,40) limitation, be moved down when in-place closing.Meanwhile when upper and lower isolation is dynamic
When static contact on contact (19,38) and switchgear just contacts, which is also just contacted with spring touch finger (26), and before should
Shoulder will not be contacted with spring touch finger (26).This guarantees: be not necessarily to connect circuit when, spring touch finger (26) not with
The external screw thread of disconnecting switch contact arm (27,32) contacts, when needing to connect circuit, spring touch finger (26) just with upper and lower disconnecting switch
The tail portion shoulder of contact arm (27,32) contacts.Coating abrasion had both been avoided in this way, can also save very big driving force.
6. being inserted into the groove of disconnecting switch contact arm (27) at the top of dog link (18) (see attached drawing 3), when upper second level
When dynamic bevel gear (20) rotates, disconnecting switch contact arm (27) would not be driven to rotate, and can only be former by the lead screw of screw thread
Reason drives upper disconnecting switch contact arm (27) upper and lower shifting movement.Lower disconnecting switch operating principle is identical with this.
Claims (5)
1. a kind of novel high-pressure switch characterized by comprising band there are two insulator, insulating cylinder and vacuum is gone out
The pole insulator (9) of arc chamber (10) and attachment casting together；An insulation being contracted in when separating brake on pole insulator (9)
Upper disconnecting switch contact arm (27) and lower disconnecting switch contact arm (32) in cylinder；The upper disconnecting switch contact arm (27) and it is described under every
It leaves and closes contact arm (32) there is different diameters, when separating brake, a disconnecting switch contact arm is inserted into another disconnecting switch contact arm
Interior, when combined floodgate, upper disconnecting switch contact arm (27) and lower disconnecting switch contact arm (32) are left each other, and upper disconnecting switch contact arm
(27) it is contacted respectively with the spring touch finger (26) that insulating cylinder both ends are arranged in the tail portion of lower disconnecting switch contact arm (32)；Insulating cylinder
Both ends be provided with guide plate (16), dog link (18) and guide plate (16) be connected and inserted into disconnecting switch contact arm (27) and
In the groove of lower disconnecting switch contact arm (32).
2. a kind of novel high-pressure switch according to claim 1, which is characterized in that the high-voltage switch gear further include: in driving
Drive bevel gear (3), the dynamic bevel gear of disconnecting switch contact arm (27) and the upper and lower stretching motion of lower disconnecting switch contact arm (32)
(5), upper second level drive bevel gear (17), upper second level dynamic bevel gear (20), lower second level dynamic bevel gear (36), the active of lower second level
Bevel gear (39).
3. a kind of novel high-pressure switch according to claim 1, which is characterized in that the high-voltage switch gear further include: both played
Insulating effect plays the insulation spinner handle (15) of transmission effect again.
4. a kind of novel high-pressure switch according to claim 1, which is characterized in that the high-voltage switch gear further include: center band
Threaded upper second level dynamic bevel gear (20), lower second level dynamic bevel gear (36).
5. a kind of novel high-pressure switch according to claim 1, which is characterized in that the high-voltage switch gear further include: outside screw thread
Diameter is less than the upper disconnecting switch contact arm (27) of conductive contact position outer diameter, lower disconnecting switch contact arm (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620843.6A CN106558444B (en) | 2015-09-28 | 2015-09-28 | A kind of novel high-pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620843.6A CN106558444B (en) | 2015-09-28 | 2015-09-28 | A kind of novel high-pressure switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106558444A CN106558444A (en) | 2017-04-05 |
| CN106558444B true CN106558444B (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510620843.6A Active CN106558444B (en) | 2015-09-28 | 2015-09-28 | A kind of novel high-pressure switch |
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| Country | Link |
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| CN (1) | CN106558444B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111696819B (en) * | 2020-05-13 | 2023-04-07 | 平高集团有限公司 | Solid-sealed polar pole and ring main unit using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201594494U (en) * | 2010-02-10 | 2010-09-29 | 北京东方昱立电气技术有限公司 | Novel high-voltage breaker |
| CN201868772U (en) * | 2010-11-16 | 2011-06-15 | 福建森达电气有限公司 | Environment-friendly all-insulated single-phase switch module |
| CN102420071A (en) * | 2011-08-22 | 2012-04-18 | 宁波耀华电气科技有限责任公司 | Totally-enclosed solid-sealed polar pole |
| CN202258992U (en) * | 2011-09-09 | 2012-05-30 | 许昌永新电器设备有限公司 | Triangle-shaped interphase full-solid insulation high- and medium-voltage switchgear |
| CN204117944U (en) * | 2014-08-09 | 2015-01-21 | 南京开关厂有限公司 | All insulation full-shield sealing body |
-
2015
- 2015-09-28 CN CN201510620843.6A patent/CN106558444B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201594494U (en) * | 2010-02-10 | 2010-09-29 | 北京东方昱立电气技术有限公司 | Novel high-voltage breaker |
| CN201868772U (en) * | 2010-11-16 | 2011-06-15 | 福建森达电气有限公司 | Environment-friendly all-insulated single-phase switch module |
| CN102420071A (en) * | 2011-08-22 | 2012-04-18 | 宁波耀华电气科技有限责任公司 | Totally-enclosed solid-sealed polar pole |
| CN202258992U (en) * | 2011-09-09 | 2012-05-30 | 许昌永新电器设备有限公司 | Triangle-shaped interphase full-solid insulation high- and medium-voltage switchgear |
| CN204117944U (en) * | 2014-08-09 | 2015-01-21 | 南京开关厂有限公司 | All insulation full-shield sealing body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106558444A (en) | 2017-04-05 |
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