CN109036951B - Module of multi-fracture high-voltage circuit breaker - Google Patents
Module of multi-fracture high-voltage circuit breaker Download PDFInfo
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- CN109036951B CN109036951B CN201810995551.4A CN201810995551A CN109036951B CN 109036951 B CN109036951 B CN 109036951B CN 201810995551 A CN201810995551 A CN 201810995551A CN 109036951 B CN109036951 B CN 109036951B
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- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 18
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 18
- 241001330002 Bambuseae Species 0.000 claims abstract description 18
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 18
- 239000011425 bamboo Substances 0.000 claims abstract description 18
- 238000004880 explosion Methods 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 208000010392 Bone Fractures Diseases 0.000 description 30
- 206010017076 Fracture Diseases 0.000 description 30
- 238000009413 insulation Methods 0.000 description 15
- 238000007789 sealing Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 208000006670 Multiple fractures Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention provides a module of a multi-fracture high-voltage circuit breaker, and belongs to the technical field of high-voltage circuit breakers. The multi-fracture high-voltage circuit breaker solves the technical problems that the whole of the existing multi-fracture high-voltage circuit breaker is of an independent structure, the manufacturing cost is high, and the parts are not easy to recycle. The module of this many fracture high voltage circuit breaker includes a jar section of thick bamboo, explosion chamber and pull rod mechanism, and the upper end of explosion chamber is fixed with and goes up electrically conductive seat, and the lower extreme of this explosion chamber is fixed with down electrically conductive seat, and in pull rod mechanism located a jar section of thick bamboo, the upper end of a jar section of thick bamboo had the bellmouth that is used for installing insulating sleeve subassembly, and flange interface I and flange interface II have been seted up along radial to the lateral wall of this jar section of thick bamboo, and flange interface I and flange interface II are different in the orientation on the horizontal direction, go up electrically conductive seat's outer peripheral face and seted up towards flange interface I's grafting notch I, and lower electrically conductive seat's outer peripheral face has been seted up towards flange interface II's grafting notch II. The module of the multi-fracture high-voltage circuit breaker realizes the modularized manufacture and assembly of the high-voltage circuit breaker.
Description
Technical Field
The invention belongs to the technical field of high-voltage circuit breakers, and relates to a module of a multi-fracture high-voltage circuit breaker.
Background
In order to ensure stable and reliable performance, the ultra-high voltage circuit breaker on the market at present adopts a tank structure, an insulating gas such as nitrogen or sulfur hexafluoride is filled in a tank as a working environment of an arc extinguish chamber, and the arrangement form of multiple fractures is adopted to share the open end pressure of a single fracture, so that better working stability and safety can be ensured under the ultra-high voltage condition.
The whole of the existing multi-fracture high-voltage circuit breaker is of an independent structure, certain differences necessarily exist in size and structure among the circuit breakers of different voltage levels, so that different manufacturing dies are required to be used for each product for manufacturers, the products can be sold after being assembled, the space is wasted, the transportation cost is high, the circuit breakers are always scrapped integrally after large faults occur for users, and parts are not easy to recycle, so that great waste is caused. Those skilled in the art will readily consider designing several components to be shared based on existing structures to alleviate this situation, which, while reducing certain production and maintenance costs, is not effective.
An existing single-break circuit breaker such as a 126kV single-break outdoor high-voltage vacuum circuit breaker disclosed in an authorized bulletin No. CN2746507Y is directly combined to be used in a high-voltage environment, an arc discharge phenomenon is caused due to insufficient creepage height between an upper wiring terminal and a lower wiring terminal, the function of improving the breaking capacity cannot be achieved, and the size height must be redesigned according to different voltage levels, but the die sinking and the manufacturing cost are increased.
Disclosure of Invention
The invention aims at the problems existing in the prior art, and provides a module of a multi-fracture high-voltage circuit breaker, which aims at solving the technical problems that: how to realize the modularization of the multi-fracture high-voltage circuit breaker with different voltage levels.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a module of many fracture high voltage circuit breaker, is including being straight tube-shape and the vertical jar section of thick bamboo that sets up, the explosion chamber of setting in a jar section of thick bamboo and be used for controlling this explosion chamber to break draw bar mechanism, the upper end of explosion chamber is fixed with the conductive seat, and the lower extreme of this explosion chamber is fixed with down conductive seat, its characterized in that, draw bar mechanism locates in the jar section of thick bamboo, the upper end of a jar section of thick bamboo has the socket that is used for installing insulating sleeve subassembly, flange interface one and flange interface two have been seted up along radial to the lateral wall of this jar section of thick bamboo, flange interface one and flange interface two are different in the orientation of horizontal direction, the grafting notch one towards flange interface one has been seted up to the outer peripheral face of going up conductive seat, the grafting notch two towards flange interface two has been seted up to the outer peripheral face of conductive seat down.
When the circuit breaker is assembled, a corresponding number of modules are selected to be sequentially arranged according to different voltage level requirements, the flange interfaces I or the flange interfaces II of two adjacent modules are in sealing connection through the existing transverse tube, then the existing conductive cross rod penetrates through the transverse tube to be connected with the corresponding socket I or socket II, then the socket on the outermost module on two sides of the multi-fracture circuit breaker is provided with an insulating sleeve assembly with an adaptive height, conductive rods are respectively arranged in the insulating sleeve assembly to be connected with the corresponding upper conductive seat, the flange interfaces I on the outermost module on two sides of the multi-fracture circuit breaker formed by combination are sealed by using the existing sealing cover plate, meanwhile, the socket on the middle module part is also sealed by using the sealing cover plate, a completely sealed cavity is finally formed inside, and only insulating gas with corresponding pressure level is needed to be filled in the tank according to different voltage requirements, so that the circuit breaker meeting the voltage level requirements is formed after assembly. When the multi-fracture voltage division control device is used, current enters from the top of the insulating sleeve on one side and flows out from the top of the insulating sleeve on the other side through a plurality of modules, and independent pull rod mechanisms in the modules are synchronously disconnected, so that series multi-fracture voltage division control can be realized, and the breaking capacity is improved. The high-voltage circuit breaker with multiple fractures can be assembled by adding a plurality of existing parts on the basis of the module, and the assembly of the ultrahigh-voltage circuit breaker with multiple fractures can be realized by connecting a plurality of modules in series according to the number of assembled modules on the basis of the structure of the module, wherein the requirements of 126KV, 363KV, 550KV, 800KV and even 1200KV voltages can be met.
In order to realize modularization, a first flange interface and a second flange interface which face different directions along the horizontal direction are arranged on the outer side wall of the tank barrel, modularization combination is conveniently realized by adopting the flange interfaces, the stability of the overall structure after combination is ensured, the sealing requirements of different air pressure grades can be met, on the basis, a first inserting notch and a second inserting notch are respectively arranged on an upper conductive seat and a lower conductive seat of the arc extinguishing chamber, the first inserting notch and the second inserting notch face the first flange interface and the second flange interface respectively, so that the conductive cross rod can be conveniently and rapidly inserted, the spacing between the conductive cross rod and the transverse barrel is ensured to be stable, the safety is ensured, in addition, the first inserting notch and the second inserting notch are both provided with a certain depth, so that when the transverse barrel is installed, even if certain fit errors exist in size, the cross rod can be supplemented through the movement of the conductive cross rod in the first inserting notch or the second inserting notch, the two ends of the conductive cross rod are inserted between the first inserting notch or the second inserting notch and clamped and limited, and the quick and stable combination of the modules is conveniently realized; further, locate the pull rod mechanism wholly in the jar section of thick bamboo, be convenient for holistic leakproofness guarantee like this and the improvement of breaking capacity, be convenient for realize between the module quick stable combination, the module can be conveniently misplaced connection with flange interface two assurance modules of orientation difference, the modularization improves the equipment convenience of many fracture high voltage circuit breaker greatly, and make the manufacturing enterprise only need produce a module in the manufacturing process and can satisfy the high voltage circuit breaker demand of different voltage requirements, practice thrift die sinking expense and transportation cost, only need dismantle when breaking down and change corresponding module can, have fine economic prospect.
In the module of the multi-fracture high-voltage circuit breaker, the first flange interface and the second flange interface are respectively arranged on the same axis as the first inserting notch and the second inserting notch. Through setting up flange interface one and inserting notch coaxial arrangement to set up flange interface two and inserting notch two coaxial arrangement, electrically conductive horizontal pole passes flange interface one or flange interface two after can peg graft to last electrically conductive seat or electrically conductive seat down conveniently like this, can guarantee electrically conductive horizontal pole both ends position stability and levelness, the equipment is more convenient and be convenient for discern can reduce the mistake dress, does benefit to and satisfies the modularization requirement.
In the module of the multi-fracture high-voltage circuit breaker, the upper conductive seat and the lower conductive seat are spaced from the inner side wall of the tank. Thus, the upper conductive seat and the lower conductive seat can not generate discharge phenomenon under the insulation gas in the tank, and the safety is ensured.
In the module of the multi-fracture high-voltage circuit breaker, annular grooves extending along the circumferential direction are formed in the first inserting notch and the second inserting notch, and elastic rings used for clamping the conductive cross rod are embedded in the annular grooves. Through being provided with the ring channel that extends along circumference in grafting notch one and grafting notch two to inlay in the ring channel and establish the elastic ring, the elastic ring can be with electrically conductive horizontal pole tight fit when electrically conductive horizontal pole inserts in grafting notch one and grafting notch two like this, prevents that electrically conductive horizontal pole one end from deviating from in the assembly process, improves assembly convenience and dismantles conveniently, does benefit to the modularization requirement more.
In the module of the multi-fracture high-voltage circuit breaker, the upper conductive seat, the arc extinguishing chamber, the lower conductive seat and the pull rod mechanism are sequentially arranged along the same straight line. Through setting up electrically conductive seat, explosion chamber, electrically conductive seat and pull rod mechanism down and arrange in same straight line in proper order, make full use of vertical direction's space like this reduces the size in the horizontal direction, does benefit to module equipment and stable in structure, satisfies high voltage circuit breaker's modularization requirement better.
In the module of the multi-fracture high-voltage circuit breaker, a slot for installing a conducting rod is formed in the top surface of the upper conducting seat. Through offer the slot at the top surface of last conducting seat, can realize the convenient dismouting of conducting rod like this, do benefit to and satisfy the modularization requirement.
In the module of the multi-fracture high-voltage circuit breaker, the first flange interface and the second flange interface face opposite or perpendicular to each other along the horizontal direction. The first flange interface and the second flange interface face away from each other along the horizontal direction, so that the circuit breaker is assembled and formed to be arranged along a straight line, and the stress stability of the whole structure of the circuit breaker is ensured; the first flange interface and the second flange interface are arranged to face vertically along the horizontal direction, so that the space occupied by the circuit breaker formed by assembly is smaller.
In the module of the multi-fracture high-voltage circuit breaker, the pull rod mechanism comprises an insulating pull rod and an accelerator capable of enabling the arc extinguish chamber to be accelerated to be opened and closed, the accelerator comprises a transmission arm, a sliding block and a sliding cylinder which is horizontally arranged, the sliding block is in sliding fit in the sliding cylinder, a pre-tightening spring is arranged between the sliding block and the bottom of the sliding cylinder in a propping mode, one end of the transmission arm is hinged to the insulating pull rod, the other end of the transmission arm is hinged to the sliding block, when the arc extinguish chamber is closed, one end of the transmission arm, which is hinged to the insulating pull rod, is inclined upwards, and one end of the transmission arm, which is hinged to the insulating pull rod, is inclined downwards when the arc extinguish chamber is disconnected. The two ends of the transmission arm are respectively hinged with the insulation pull rod and the sliding block, so that the sliding block is in sliding fit in the sliding cylinder which is horizontally arranged, the sliding cylinder faces the insulation pull rod along the axial direction, in addition, a compression pre-tightening spring is arranged in the sliding cylinder and is abutted against the sliding block, so that the hinge point position of the sliding block and the transmission arm only moves in the horizontal direction, the hinge point position of the insulation pull rod and the transmission arm only moves in the vertical direction, before the arc extinguishing chamber is closed, the end of the transmission arm hinged with the insulation pull rod is inclined downwards, the insulation pull rod drives the end of the transmission arm to move when the arc extinguishing chamber starts to be closed, the inclination of the transmission arm gradually tends to be horizontal, at the moment, the sliding block is pushed to slide in the sliding cylinder and further compresses the spring, when the continuous movement enables the end of the transmission arm hinged with the insulation pull rod to start to be inclined upwards, the insulation pull rod is subjected to the upward thrust of the inclination of the transmission arm at the moment, so that the closing speed is improved, and when the arc extinguishing chamber is closed, the thrust of the spring still continues to act, and the closing effect is ensured; similarly, in the process of disconnecting the vacuum arc-extinguishing chamber, the spring firstly stores energy, and releases potential energy to accelerate the downward movement of the insulating pull rod after the inclination angle of the transmission arm passes through the horizontal critical, so that the disconnection speed is improved.
Compared with the prior art, the invention has the following advantages:
1. the module of the multi-fracture high-voltage circuit breaker is provided with the upper conductive seat and the lower conductive seat respectively at the upper end and the lower end of the arc extinguishing chamber, and the outer side wall of the tank is provided with the flange interface I and the flange interface II which are radially arranged, so that an operator can use the conductive cross rod to pass through the flange interface I to be connected with the upper conductive seat or pass through the flange interface II to be connected with the lower conductive seat, when the multi-fracture circuit breaker is required to be assembled, the multi-fracture high-voltage circuit breaker can be assembled by adding a plurality of existing parts on the basis of a plurality of modules, and the ultra-high-voltage circuit breaker assembly meeting the 126KV, 363KV, 550KV, 800KV and even 1200KV pressure requirements can be realized through the serial connection of the high-voltage circuit breaker modules of an even number according to the number of assembled modules.
2. The module of this many fracture high voltage circuit breaker is located same straight line through setting up electrically conductive seat, explosion chamber, electrically conductive seat and pull rod mechanism down in proper order, and the space of the vertical direction of make full use of reduces the size in the horizontal direction like this, does benefit to module equipment and stable in structure, satisfies high voltage circuit breaker's modularization requirement better.
Drawings
Fig. 1 is a schematic sectional view showing a three-dimensional structure of a module of the multi-break high-voltage circuit breaker.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a schematic cross-sectional structure of a module assembled four-break high voltage circuit breaker of the multi-break high voltage circuit breaker.
Fig. 5 is a schematic diagram of the module assembly of the present multi-break high voltage circuit breaker as a six-break high voltage circuit breaker.
In the figure, 1, a tank; 11. a socket; 12. a flange interface I; 13. a flange interface II;
2. an arc extinguishing chamber;
3. a pull rod mechanism; 31. an insulating pull rod; 32. an accelerator; 321. a transmission arm; 322. a slide block; 323. a slide cylinder; 324. a spring;
4. an upper conductive seat; 41. a first inserting notch; 42. a slot;
5. a lower conductive seat; 51. a second inserting notch;
6. an annular groove; 7. an elastic ring;
80. an insulating sleeve assembly; 81. a conductive cross bar; 82 transverse cylinders; 83 sealing the cover plate; 84 conductive rods.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Embodiment one:
as shown in fig. 1, fig. 2 and fig. 4, the module of the multi-fracture high-voltage circuit breaker comprises a tank 1, an arc extinguishing chamber 2 and a pull rod mechanism 3 for controlling the arc extinguishing chamber 2 to be opened and closed, wherein a socket 11 for installing an insulating sleeve assembly 80 is arranged at the upper end of the tank 1, the arc extinguishing chamber 2 and the pull rod mechanism 3 are arranged in the tank 1, an upper conductive seat 4 and a lower conductive seat 5 which are electrically connected with the arc extinguishing chamber 2 are respectively fixed at the upper end and the lower end of the arc extinguishing chamber 2, a first flange interface 12 for enabling a conductive cross rod 81 to penetrate through the upper conductive seat 4 and a second flange interface 13 for enabling the conductive cross rod 81 to penetrate through the lower conductive seat 5 are radially arranged on the outer side wall of the tank 1, and the directions of the first flange interface 12 and the second flange interface 13 are opposite in the horizontal direction. The high-voltage circuit breaker realizes the circuit breaking through the disconnection of pull rod mechanism 3 control explosion chamber 2, and a jar section of thick bamboo 1 is used for maintaining insulating gas environment, avoids producing the discharge in a jar section of thick bamboo inside, and the bellmouth 11 of jar section of thick bamboo 1 upper end is used for linking firmly with insulating sleeve subassembly 80, and insulating sleeve subassembly includes current commercially available insulating sleeve and transformer subassembly. The tank 1 is a metal piece, the arc extinguishing chamber 2 and the pull rod mechanism 3 are arranged in the tank 1, so that the modules can realize independent opening and closing actions of each module and are beneficial to integral sealing, modularization is beneficial to realization, an upper conductive seat 4 and a lower conductive seat 5 are respectively arranged at the upper end and the lower end of the arc extinguishing chamber 2, a first flange interface 12 and a second flange interface 13 which are radially arranged are arranged on the outer side wall of the tank 1, an operator can use a conductive cross rod 81 to pass through the first flange interface 12 to be connected with the upper conductive seat 4 or pass through the second flange interface 13 to be connected with the lower conductive seat 5, when a four-fracture breaker is required to be assembled, four identical high-voltage breaker modules are arranged in sequence, and the first flange interfaces 12 or the second flange interfaces 13 of two adjacent high-voltage breaker modules are opposite and are connected in a sealing way through the existing transverse cylinder 82, the prior conductive cross rod 81 is connected with the two upper conductive seats 4 or the lower conductive seats 5 through the first flange connector 12 or the second flange connector 13, the first flange connector 12 on the modules at the two sides of the four-fracture circuit breaker is closed by the prior sealing cover plate 83, the bearing connectors 11 of the middle two modules are also closed by the sealing cover plate 83, the bearing connectors 11 on the modules at the two sides of the multi-fracture circuit breaker are respectively provided with an insulating sleeve assembly 80 with a proper height, and the conductive rods 84 are respectively arranged in the insulating sleeve assembly 80 to be connected with the corresponding upper conductive seats 4, thus the ultra-high voltage circuit breaker assembly meeting 550 voltage requirements can be realized by connecting the four high-voltage circuit breaker modules in series, the assembly convenience of the high-voltage circuit breaker can be continuously expanded on the basis of four-fracture, the modularization is greatly improved, and the production enterprises only need to produce one module in the manufacturing process to be capable of meeting the high-voltage circuit breakers with different voltage requirements, the die sinking cost and the transportation cost are saved, and when the die sinking cost and the transportation cost are out of order, only the corresponding module is required to be disassembled and replaced, so that the die sinking device has good economic prospect. Further, the first flange interface 12 and the second flange interface 13 are respectively corresponding to the upper conductive seat 4 and the lower conductive seat 5. The first flange interface 12 and the second flange interface 13 are matched with the transverse cylinder 82 through connecting pieces such as bolts and the like to be matched with sealing rings, so that sealing connection is convenient to realize, assembly is convenient, sealing is reliable, and modularization requirements are met. Through setting up the high position of flange interface one 12 and corresponding with last conductive seat 4 to set up the high position of flange interface two 13 and corresponding with lower conductive seat 5, electrically conductive horizontal pole 81 passes flange interface one 12 or flange interface two 13 and then can directly be connected with last conductive seat 4 or lower conductive seat 5, and it is more convenient and the discernable ability of being convenient for of equipment reduces the mistake dress, does benefit to and satisfies the modularization requirement. Preferably, the outer peripheral surface of the upper conductive seat 4 and the outer peripheral surface of the lower conductive seat 5 are respectively provided with a first inserting notch 41 and a second inserting notch 51 for inserting the conductive cross rod 81, the first inserting notch 41 is opposite to the first flange interface 12, and the second inserting notch 51 is opposite to the second flange interface 13. By respectively forming the first inserting notch 41 and the second inserting notch 51 on the outer peripheral surface of the upper conductive seat 4 and the outer peripheral surface of the lower conductive seat 5, the first inserting notch 41 and the second inserting notch 51 correspond to the first flange interface 12 and the second flange interface 13 respectively, so that the conductive cross rod 81 can ensure the stability and levelness of the two ends of the conductive cross rod through the inserting fit with the first inserting notch 41 or the second inserting notch 51, and the conductive cross rod 81 can have a certain displacement space under the condition that the connecting effect is not affected between the first inserting notch 41 or the second inserting notch 51, and the size of the transverse cylinder 82 can still better meet the assembly requirement even if a certain matching error exists, thereby further meeting the modularization requirement. The top surface of the upper conductive base 4 is provided with a slot 42 for installing a conductive rod 84. Through offer slot 42 in the top surface of last conducting seat 4, can realize the convenient dismouting of conducting rod 84 like this, do benefit to and satisfy the modularization requirement. The upper conductive seat 4, the arc extinguishing chamber 2, the lower conductive seat 5 and the pull rod mechanism 3 are sequentially positioned on the same straight line. Through setting up electrically conductive seat 4, explosion chamber 2, electrically conductive seat 5 and pull rod mechanism 3 down are located same straight line in proper order, make full use of vertical direction's space like this reduces the size in the horizontal direction, does benefit to module equipment and stable in structure, satisfies high voltage circuit breaker's modularization requirement better.
As shown in fig. 1 and 2, annular grooves 6 extending along the circumferential direction are formed in the first inserting groove 41 and the second inserting groove 51, and elastic rings 7 for clamping the conductive cross bars 81 are embedded in the annular grooves 6. Through be provided with the ring channel 6 that extends along circumference in grafting notch one 41 and grafting notch two 51 to inlay in ring channel 6 and establish elastic ring 7, elastic ring 7 can be with conductive horizontal pole 81 tight fit when conductive horizontal pole 81 inserts in grafting notch one 41 and grafting notch two 51 like this, prevent that conductive horizontal pole 81 one end from deviating from in the assembly process, improve assembly convenience and dismantle conveniently, do benefit to the modularization requirement more.
As shown in fig. 1 and 3, the pull rod mechanism 3 includes an insulating pull rod 31 and an accelerator 32 capable of accelerating the breaking of the arc extinguishing chamber 2, the accelerator 32 includes a transmission arm 321, a sliding block 322 and a sliding cylinder 323 horizontally arranged, the sliding block 322 is slidably fitted in the sliding cylinder 323, a pre-tightening spring 324 is abutted against the bottom of the sliding cylinder 323, one end of the transmission arm 321 is hinged with the insulating pull rod 31, the other end of the transmission arm 321 is hinged with the sliding block 322, when the arc extinguishing chamber 2 is closed, the hinged end of the transmission arm 321 and the insulating pull rod 31 is inclined upwards, and when the arc extinguishing chamber 2 is disconnected, the hinged end of the transmission arm 321 and the insulating pull rod 31 is inclined downwards. The two ends of the transmission arm 321 are hinged with the insulation pull rod 31 and the sliding block 322 respectively, so that the sliding block 322 is in sliding fit in the sliding cylinder 323 which is horizontally arranged, the sliding cylinder 323 axially faces the insulation pull rod 31, in addition, a compression pre-tightening spring 324 is arranged in the sliding cylinder 323 and is abutted against the sliding block 322, so that the hinge point position of the sliding block 322 and the transmission arm 321 only moves in the horizontal direction, the hinge point position of the insulation pull rod 31 and the transmission arm 321 only moves in the vertical direction, the end, hinged with the transmission arm 321 and the insulation pull rod 31, of the arc extinguishing chamber 2 is inclined downwards, the insulation pull rod 31 drives one end of the transmission arm 321 to move at the beginning of closing, the inclination of the transmission arm 321 gradually tends to be horizontal, at the moment, the sliding block 322 is pushed to slide in the sliding cylinder 323 and further compresses the spring 324, when the continuous movement enables the end, hinged with the insulation pull rod 31, of the transmission arm 321 starts to incline upwards, the spring 324 outwards releases potential energy, at the moment, the insulation pull rod 31 is subjected to the upward inclination of the transmission arm 321, so that the closing speed is improved, and the thrust of the spring 324 still acts continuously after the arc extinguishing chamber 2 is closed, so that the closing effect is ensured; similarly, in the process of disconnecting the vacuum arc-extinguishing chamber 2, the spring 324 stores energy firstly, passes through the horizontal critical angle at the inclination angle of the transmission arm 321, and then releases potential energy to accelerate the downward movement of the insulating pull rod 31, so that the disconnection speed is improved.
Embodiment two:
as shown in fig. 5, this embodiment is substantially the same as the first embodiment except that: the orientation of the first flange interface 12 and the second flange interface 13 forms an included angle of 90 degrees in the horizontal direction, and the six-fracture high-voltage circuit breaker assembled by connecting components such as six modules of the multi-fracture high-voltage circuit breaker in series, the existing inclined transverse tube, the conductive transverse rod and the like is arranged in an S shape. The space size of the high-voltage circuit breaker is convenient to reduce, and the use safety is guaranteed.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a module of multi-fracture high-voltage circuit breaker, is including being straight tube-shape and the vertical jar section of thick bamboo (1) that sets up, explosion chamber (2) and be used for controlling the disconnected pull rod mechanism (3) of this explosion chamber (2) in jar section of thick bamboo (1), the upper end of explosion chamber (2) is fixed with electrically conductive seat (4), and the lower extreme of this explosion chamber (2) is fixed with electrically conductive seat (5), characterized in that, pull rod mechanism (3) are located in jar section of thick bamboo (1), and the upper end of jar section of thick bamboo (1) has a socket (11) that is used for installing insulating sleeve subassembly, and the outer lateral wall of this jar section of thick bamboo (1) has offered flange interface one (12) and flange interface two (13) along radial, flange interface one (12) and flange interface two (13) are different in the orientation on the horizontal direction, the outer peripheral face of upper electrically conductive seat (4) has offered towards flange interface one (12) grafting notch one (41), the outer peripheral face of electrically conductive seat (5) has offered towards flange interface two (13) grafting notch (51); the pull rod mechanism (3) comprises an insulating pull rod (31) and an accelerator (32) capable of enabling the arc extinguishing chamber (2) to be rapidly broken, the accelerator (32) comprises a transmission arm (321), a sliding block (322) and a sliding cylinder (323) which is horizontally arranged, the sliding block (322) is in sliding fit with the sliding cylinder (323), a pre-tightening spring (324) is abutted against the bottom of the sliding block (322) and is arranged between the sliding block (322) and the bottom of the sliding cylinder (323), one end of the transmission arm (321) is hinged with the insulating pull rod (31), the other end of the transmission arm (321) is hinged with the sliding block (322), when the arc extinguishing chamber (2) is closed, the hinged end of the transmission arm (321) and the insulating pull rod (31) is upwards inclined, and when the arc extinguishing chamber (2) is disconnected, the hinged end of the transmission arm (321) and the insulating pull rod (31) is downwards inclined.
2. The module of a multi-break high voltage circuit breaker according to claim 1, characterized in that the first flange interface (12) and the second flange interface (13) are arranged coaxially with the first socket slot (41) and the second socket slot (51), respectively.
3. The module of a multi-break high voltage circuit breaker according to claim 1, characterized in that the upper (4) and lower (5) conductive seats are each spaced from the inner side wall of the can (1).
4. A module of a multi-break high voltage circuit breaker according to claim 1 or 2 or 3, characterized in that the first and second plugging slots (41, 51) are each provided with a circumferential extending annular groove (6), and the annular groove (6) is embedded with an elastic ring (7) for clamping the conductive cross rod.
5. A module of a multi-break high voltage circuit breaker according to claim 1 or 2 or 3, characterized in that the upper conducting base (4), the arc extinguishing chamber (2), the lower conducting base (5) and the pull rod mechanism (3) are arranged in sequence on the same straight line.
6. A module of a multi-break high voltage circuit breaker according to claim 1 or 2 or 3, characterized in that the top surface of the upper conducting base (4) is provided with a slot (42) for mounting a conducting rod.
7. A module of a multi-break high voltage circuit breaker according to claim 1 or 2 or 3, characterized in that the first flange interface (12) and the second flange interface (13) are oriented opposite or perpendicular in the horizontal direction.
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| CN201810995551.4A CN109036951B (en) | 2018-08-29 | 2018-08-29 | Module of multi-fracture high-voltage circuit breaker |
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| CN201810995551.4A CN109036951B (en) | 2018-08-29 | 2018-08-29 | Module of multi-fracture high-voltage circuit breaker |
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| CN109036951B true CN109036951B (en) | 2024-04-16 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111463062B (en) * | 2020-04-27 | 2022-06-14 | 郑州大学 | Environment-friendly tank type multi-fracture vacuum circuit breaker |
| CN113745042A (en) * | 2021-09-07 | 2021-12-03 | 南京南瑞继保电气有限公司 | Multi-fracture tank type high-voltage quick circuit breaker |
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