CN204884993U - Novel high -voltage switch - Google Patents

Novel high -voltage switch Download PDF

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Publication number
CN204884993U
CN204884993U CN201520597014.6U CN201520597014U CN204884993U CN 204884993 U CN204884993 U CN 204884993U CN 201520597014 U CN201520597014 U CN 201520597014U CN 204884993 U CN204884993 U CN 204884993U
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Prior art keywords
switch
isolator
arm
insulating
novel
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CN201520597014.6U
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Chinese (zh)
Inventor
涂大石
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HUADIAN HIGH-TECH (BEIJING) ELECTRICAL Co Ltd
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HUADIAN HIGH-TECH (BEIJING) ELECTRICAL Co Ltd
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Abstract

The utility model relates to a novel high -voltage switch who uses in the electric field of high -voltage switch especially has isolator's vacuum switch. This vacuum switch includes: have two insulators, two insulating cylinders and explosion chamber pouring insulator (17) together, support base (2) of all spare parts, transmission main shaft (4) of switch, upper and lower isolator transmission shaft (10), (6), insulating swing arm (9), the quiet end support of explosion chamber (12), isolator touches arm (14) down, go up isolator and touch arm (36), vacuum interrupter (16), moving contact safety cover (27), the spring touches finger (18), (21), direction limiting plate (20), screw thread area (29), worm (31), worm wheel (23), worm wheel box (26), the explosion chamber moves end support (32), insulating pull rod (34). The combination of this switch and upper and lower isolator, isolator touches upper and lower perpendicular flexible removal of arm, ensconce insulating sheath when withdrawing again in, these two insulating sheath are with solid to seal an utmost point post be again integrative, very big degree ground has reduced the space that occupies, has also shortened the length of galvanic circle. If in putting a metal -enclosed's cubical switchboard to this switch, not only make whole cupboard reduce, still because of diminishing, the loop resistance improves its current -carrying ability.

Description

A kind of novel high-pressure switch
Technical field
The present invention relates to high pressure (3.6kV ~ 40.5kV) switch, particularly indoor high-voltage vacuum switch.
Background technology
At present, known high-voltage switch gear feature is as follows:
1. switch (can be circuit breaker, may also be on-load switch or contactor) does not combine with isolating switch as the independent component in switch cubicle, couples together during use with bus again.This just brings following problem:
A. because each element is independent, the volume taken after connecting in cabinet is very huge;
B. because each element is independent, the galvanic circle formed after connecting in cabinet is very long, tie point is many, adds caloric value, reduces current capacity;
C. isolating switch adopts single-arm rotary type mostly, and the space taken is also very large.
2. in order to reduce volume, organic insulating material is used in a large number.This just brings following problem:
A. organic insulating material is passed aging in time, especially the accelerated ageing when high temperature, and dielectric strength reduces, and easily causes breakdown accident;
B. insulating material is all generally the non-conductor of heat, and impact heat radiation, increases temperature rise;
Although 3. withdraw-type switch cabinet insulating contact and switch are combined, during operation, whole handcart to be made to move, very heavy.In addition, the contact situation of dynamic and static contact cannot be observed outside cabinet, is unfavorable for safe operation;
4. switch arc control device and the upper and lower contact arm of isolating switch and driving mechanism thereof are combined, and the upper and lower stretching motion of isolating switch contact arm, conductive parts exposes.Although compare with frame mode in the past and can save very large space, the external insulation cylinder, conductive component etc. of switch arc control device, contact arm not a sealing are cast in together, and the space taken is still larger.
5. because volume is large, quality weight, operate very difficult, be also unfavorable for electric operating isolating switch.
Utility model content
The object of the invention is to for addressing the aforementioned drawbacks and providing a kind of novel high-pressure switch.
This novel high-pressure switch comprises: with two insulators, two insulating cylinders and vacuum interrupter cast or seal the insulator that is placed in together; Drive worm gear and the worm screw of lower isolating switch contact arm, the upper and lower stretching motion of upper isolating switch contact arm; The lower isolating switch contact arm in two insulating cylinders on insulator, upper isolating switch contact arm is contracted in respectively during separating brake; Not only play insulating effect but also play the insulation swing arm of gearing.
Above-mentioned a kind of novel high-pressure switch, it is characterized in that, this high-voltage switch gear also comprises: the screwed worm gear in center.
Beneficial effect
1. switch and isolating switch are combined as an element, especially arc control device, isolation contact arm insulating cylinder and conductive parts once-cast in an insulator, electric conductor seldom exposes.Not recombinant multiple element when using in cabinet, reduces volume significantly, reduces cost;
2. isolating switch contact arm adopts upper and lower Telescopic moving, is especially wrapped in insulating sleeve when separating brake, decreases the volume taken.In addition, operationally, insulating sleeve does not bear high voltage, very little to security implication;
3. decrease the use of organic insulating material, reduce the risk of ageing of insulation;
4. can observe the contact condition of contact, ensure security of operation;
5. increase between electrified body, electrified body over the ground between air distance, more ensure safety;
6. the labour-saving kind of drive, makes operation very light, is more convenient for realizing electric operating isolating switch.
Accompanying drawing explanation
Fig. 1 is the front view of this high-voltage switch gear;
Fig. 2 is the A direction view (only drawing a pole) of this high-voltage switch gear;
In figure: 1-roller; 2-framework; 3-connecting lever; 4-switch transmission main shaft; 5-drive bevel gear; Isolating switch power transmission shaft under 6-; 7-is by dynamic bevel gear; 8-adapter sleeve; 9-insulate swing arm; The upper isolating switch power transmission shaft of 10-; 11-bevel gear box; The quiet end support of 12-arc control device; The upper isolating switch contact arm ("on" position) of 13-; Isolating switch contact arm (gate-dividing state) under 14-; The upper conductive plate of 15-; 16-vacuum interrupter; 17-insulator; Spring touch finger drawn by 18-arc control device; 19-lower conducting plate; 20-guide and limit plate; 21-isolates contact arm spring touch finger; 22-ball; 23-worm gear; 24-isolation leg; 25-insulated connecting rod; 26-worm gear box; 27-moving contact protective cover; 28-isolates moving contact; 29-thread belt; Isolating switch contact arm ("on" position) under 30-; 31-worm screw; 32-movable end of arc extinguishing chamber support; 33-connecting lever; 34-insulated tension pole; 35-arc control device contact stage clip; The upper isolating switch contact arm of 36-.
Embodiment
This high-voltage switch gear comprises:
(1) roller 1-supports whole high-voltage switch gear, and can move in the plane;
(2) each parts of framework 2-are directly or indirectly arranged on framework (2), form a high-voltage switch gear entirety;
(3) connecting lever 3-transmission is used;
(4) switch transmission main shaft 4-passes to connecting lever (3), switching manipulation insulated tension pole (34), connecting lever (33) the power of operating mechanism, finally pass to the moving contact of vacuum interrupter (16), make its action;
(5) drive bevel gear 5-transmitting torque is given by dynamic bevel gear (7)
(6) under, isolating switch power transmission shaft 6-accepts the moment of torsion transmitted, pass to by dynamic bevel gear (7), insulation swing arm (9), worm screw (31), worm gear (23), lower isolation contact arm (14) by drive bevel gear (5) again, can stretching motion up and down;
(7) insulation swing arm (9) is passed to after being accepted moment of torsion by dynamic bevel gear 7-;
(8) adapter sleeve 8-connects by dynamic bevel gear (7) and insulation swing arm (9) synchronous axial system;
(9) the swing arm 9-that insulate insulate and transmits torque to worm screw (31);
(10) upper isolating switch power transmission shaft 10-accepts the moment of torsion that outside transmission comes, passed to by dynamic bevel gear (7), insulation swing arm (9), worm screw (31), worm gear (23), upper isolation contact arm (36) by drive bevel gear (5) again, make the upper and lower stretching motion of isolation contact arm (36) energy;
(11) bevel gear box 11-installs fixed cone gear use;
(12) arc control device quiet end support 12-supports the upper quiet end of arc control device (16), and plays thermolysis;
(13) effect of upper isolating switch contact arm ("on" position) 13-conduction and isolation;
(14) effect that under, isolating switch contact arm (gate-dividing state) 14-conducts electricity and isolates;
(15) upper electrical connection between conductive plate 15-vacuum interrupter (16) and upper isolation contact arm (36) is used;
(16) vacuum interrupter 16-is cut-off rated current, short circuit current and is used by normal current;
(17) insulator 17-is cast in vacuum interrupter (16) and annex thereof together, formed simultaneously two insulators (with framework (2) fixing with), two insulating cylinders (isolate contact arm shrink (open position) be afterwards placed on wherein) and shutter body.Shutter body can block electrified body, to reduce air distance alternate and over the ground;
(18) arc control device extraction spring touch finger 18-slides to be electrically connected with lower conducting plate (19) and uses;
(19) lower conducting plate 19-one end is moved guide rod by spring touch finger (18) with arc control device and is connected, one end is connected with isolating switch contact arm (14) by isolation contact arm spring touch finger (21), ensures that vacuum interrupter (16) moving contact remains with lower isolating switch contact arm (14) and is electrically connected;
(20) guide and limit plate 20-plays spline and spacing effect to isolation contact arm;
(21) isolation contact arm spring touch finger 21-plays the effect that upper and lower conductive plate is electrically connected with the slip of upper and lower isolation contact arm;
(22) ball 22-is supported between worm gear (23) and worm gear box (26) and also can rolls, and plays the effect of bearings;
(23) worm gear (23)-accept the moment of torsion of worm screw (31) and rotate, the endoporus being simultaneously processed into T-shaped screw thread engages with thread belt (29), and driving isolation switch contact arm moves up and down;
(24) isolation leg 24-plays the effect of insulating supporting;
(25) insulated connecting rod 25-connects each isolation leg of three-phase (24), improves intensity and stability;
(26), after worm gear box 26-two docking, play and fixedly lay worm gear (23), worm screw (31) is used;
(27) moving contact protective cover 27-had both played uniform electric field, had reduced the effect of corona, also can play the effect of backing down valve when isolating switch closes a floodgate;
(28) isolate moving contact 28-to coordinate with the fixed contact on switch cubicle, play the effect in connection and isolate conductive loop;
(29) each contact arm of thread belt 29-is fixed two thread belts (29), with the T-shaped threaded engagement of worm gear (23) endoporus, drive contact arm to move up and down;
(30) when under, isolating switch contact arm ("on" position) 30-closes a floodgate, turn on-switch fixed contact cashier's office in a shop and the moved end of vacuum interrupter (16), make the moved end of the fixed contact on switch cubicle and arc control device (16) have enough insulation distances during separating brake;
(31) worm screw 31-one end accepts insulation swing arm (9) moment of torsion that transmits, and one end is engaged with worm gear (23), simultaneously change power transmission shaft to;
(32) movable end of arc extinguishing chamber support 32-plays the effect supporting the parts such as connecting lever (33);
(33) connecting lever 33-changes the direction from the power of insulated tension pole (34), controls the upper and lower motion of vacuum interrupter (16) moving contact;
(34) insulated tension pole 34-transmission is from the moment of operating mechanism to control the action of vacuum interrupter (16) moving contact, plays the insulating effect between electrified body and earth electrode simultaneously;
(35) arc control device contact stage clip 35-allows between the dynamic and static contact of vacuum interrupter (16) and maintains enough pressure when closing a floodgate;
(36) when upper isolation contact arm 36-closes a floodgate, turn on-switch upper static contact cashier's office in a shop and the upper quiet end of arc control device (16), make the upper quiet end of the upper static contact on switch cubicle and vacuum interrupter (16) have enough insulation distances during separating brake.
Not shown upper and lower static contact isolation switch, this is a kind of parts well known in the art, and it is arranged in switch cabinet contact box.
Below in conjunction with accompanying drawing 1 ~ 2 and embodiment, the invention will be further described:
1. switch splitting or integrating lock process:
1. switch operation mechanism drives switch transmission main shaft (4) to rotate counterclockwise (see accompanying drawing 1) after closing a floodgate and starting action;
2. switch transmission main shaft (4) drives switching manipulation insulated tension pole (34) to move right by connecting lever (3);
3. insulated tension pole (34) promotion connecting lever (33) drives vacuum interrupter (16) moving contact to move upward again, and finally closing a floodgate puts in place;
4. after closing a floodgate, arc control device contact stage clip (35) continues to be compressed to certain degree, makes to keep certain pressure between vacuum interrupter (16) dynamic and static contact;
5. separating brake process in contrast.
2. isolating switch splitting or integrating lock process
1. when upper isolating switch power transmission shaft (10) or lower isolating switch power transmission shaft (6) (the general synchronous splitting or integrating lock of upper and lower isolating switch), rotate (see accompanying drawing 1, accompanying drawing 2) after being subject to the torque drive from operating mechanism, the drive bevel gear (5) that it is installed drives and is rotated by dynamic bevel gear (7);
2. worm screw (31) is driven to rotate by dynamic bevel gear (7) by insulation swing arm (9);
3. worm screw (31) engages with worm gear (23), drives worm gear (23) to rotate;
4. the T-shaped screw thread of worm gear (23) endoporus and engaging of thread belt (29), promote thread belt (29) to move up and down, drive isolating switch contact arm (14), (36) move up and down simultaneously, complete the process of splitting or integrating lock.
5. the afterbody of isolating switch contact arm (14), (36) has a shoulder, close a floodgate to be directed to when putting in place limiting plate (20) restriction can not again on move or move down.Meanwhile, when isolating moving contact (28) and just contacting with the fixed contact on switch cubicle, this shoulder also just contacts with isolation contact arm spring touch finger (21).This guarantees when there is no need to connect loop, only having less pressure, need just there is larger pressure when connecting loop, avoid coating to wear and tear.

Claims (5)

1. a novel high-pressure switch, is characterized in that, comprising: with two insulators, two insulating cylinders and vacuum interrupter (16) cast or the insulator (17) that is placed in together of sealing.
2. a kind of novel high-pressure switch according to claim 1, it is characterized in that, this high-voltage switch gear also comprises: the worm gear (23) of driving isolation switch contact arm (14), (36) upper and lower stretching motion and worm screw (31).
3. a kind of novel high-pressure switch according to claim 1, it is characterized in that, this high-voltage switch gear also comprises: be contracted in the lower isolating switch contact arm (14) in two insulating cylinders on insulator (17), upper isolating switch contact arm (36) during separating brake respectively.
4. a kind of novel high-pressure switch according to claim 1, it is characterized in that, this high-voltage switch gear also comprises: not only played insulating effect but also played the insulation swing arm (9) of gearing.
5. a kind of novel high-pressure switch according to claim 1, it is characterized in that, this high-voltage switch gear also comprises: the screwed worm gear in center (23).
CN201520597014.6U 2015-08-11 2015-08-11 Novel high -voltage switch Active CN204884993U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520597014.6U CN204884993U (en) 2015-08-11 2015-08-11 Novel high -voltage switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520597014.6U CN204884993U (en) 2015-08-11 2015-08-11 Novel high -voltage switch

Publications (1)

Publication Number Publication Date
CN204884993U true CN204884993U (en) 2015-12-16

Family

ID=54829341

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520597014.6U Active CN204884993U (en) 2015-08-11 2015-08-11 Novel high -voltage switch

Country Status (1)

Country Link
CN (1) CN204884993U (en)

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