CN117059428B - High-voltage load switch adopting magnetic blow-out combined type arc extinction - Google Patents
High-voltage load switch adopting magnetic blow-out combined type arc extinction Download PDFInfo
- Publication number
- CN117059428B CN117059428B CN202311076504.7A CN202311076504A CN117059428B CN 117059428 B CN117059428 B CN 117059428B CN 202311076504 A CN202311076504 A CN 202311076504A CN 117059428 B CN117059428 B CN 117059428B
- Authority
- CN
- China
- Prior art keywords
- arc
- magnetic
- fixing plate
- grid
- load 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.)
- Active
Links
- 230000008033 biological extinction Effects 0.000 title claims abstract description 25
- 239000012212 insulator Substances 0.000 claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 17
- 229910001080 W alloy Inorganic materials 0.000 claims abstract description 10
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 238000010791 quenching Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 229920006351 engineering plastic Polymers 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims 5
- 230000009471 action Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 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
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
-
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
-
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to a high-voltage load switch adopting magnetic blow combined arc extinction, which comprises a rear fixing plate and a front fixing plate, wherein an upper beam is arranged on the right upper part between the rear fixing plate and the front fixing plate, a lower beam is arranged on the right lower part, a grounding beam is arranged on the left lower part, a plurality of upper insulators are arranged on the upper beam at intervals, a plurality of isolation contacts are correspondingly arranged on the plurality of upper insulators, and copper tungsten alloy arc striking needles and arc striking sealing assemblies are arranged on the lower sides of the isolation contacts. The invention adopts the combination of the permanent magnet and the arc extinguishing grid to extinguish the arc, when the movable contact is switched off, the arc is blown to the interval of the arc striking closed assembly under the action of magnetic force, the arc striking closed assembly generates electromagnetic force perpendicular to the movement track of the arc, the arc is divided into a plurality of sections under the action of the electromagnetic force, the arc is lengthened and rapidly cooled, the energy of the arc is absorbed, the arc is forced to extinguish or the arc is not re-burned after crossing, the arc extinguishing effect is obviously improved, and the invention has the advantages of timely arc extinguishing response and strong arc extinguishing capability. The whole volume is smaller, the cost is reduced, and the safety and reliability are realized.
Description
Technical Field
The invention relates to the technical field of high-voltage switch equipment, in particular to a high-voltage load switch adopting magnetic blowing combined arc extinction.
Background
The high-voltage load switch is an important component of high-voltage switch equipment in a power system and is widely applied to industrial and civil power generation and distribution systems and power supply terminals.
The phenomenon of gas discharge, i.e., arcing, accompanies the process of switching on and off the current by the contacts. The arc energy is concentrated, the temperature is high, and the serious conditions cause contact fusion welding and contact fusion.
The existing common arc extinguishing modes comprise an arc extinguishing grid, an arc extinguishing ring, magnetic blowing, air blowing and the like. But the arc extinguishing bars and the arc extinguishing rings have limited arc extinguishing capability, so that the number of arc extinguishing bars sheets and the number of copper strips of the arc extinguishing rings can be increased for achieving the effect. Meanwhile, in order to ensure insulation, the isolation fracture distance can only be increased, which leads to widening and heightening of the air box and increases the material cost. The traditional magnetic blowing and air blowing also have the problems of large volume, complex structure and high cost, and are unfavorable for being used in the ring main unit with small volume and compact structure.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a high-voltage load switch adopting magnetic blowing combined arc extinction.
The invention adopts the following technical scheme: a high-voltage load switch adopting magnetic blow-out combined arc extinction comprises a rear fixing plate and a front fixing plate; an upper beam is arranged on the right upper part between the rear fixing plate and the front fixing plate, a lower beam is arranged on the right lower part, and a grounding beam is arranged on the left lower part; a plurality of upper insulators are arranged on the upper beam at intervals; a plurality of isolation contacts are correspondingly arranged on the plurality of upper insulators; a plurality of lower insulators are arranged on the lower beam at intervals; the plurality of lower insulators are corresponding to the plurality of upper insulators; a conducting rod is arranged on the lower insulator; the conductive rod is connected with the pin shaft of the movable cutter assembly; the grounding beam is provided with a busbar; a plurality of grounding contacts are arranged on the busbar at intervals; the movable knife assembly is connected with the connecting plate through an insulating sleeve pin shaft; the connecting plate is connected with the insulating shaft through a crank arm pin shaft; the tail end of the insulating shaft is connected with the rear fixing plate through a bearing, and the front end of the insulating shaft passes through a corresponding hole of the front fixing plate to be connected with a driving mechanism; the lower side of the isolation contact is provided with a copper tungsten alloy arc striking needle and an arc striking sealing assembly; the arc striking closing component is positioned on the upper side of the copper tungsten alloy arc striking needle.
Further, the arc striking closed assembly comprises a plurality of magnetic conductive sheets, plastic rivets, a cross grid, a pair of magnetic bins and a pair of permanent magnets; the magnetic conductive sheets are arranged on two sides of the cross grid in an array manner; the pair of magnetic bins are respectively arranged at two sides of the cross grid frame and are positioned at the outer sides of the magnetic conducting sheets at the two sides; the pair of permanent magnets are respectively arranged in the pair of magnetic bins; and pressing the plastic rivet into the magnetic bin to limit the permanent magnet.
Further, the cross grid frame is formed by injection molding of thermoplastic engineering plastics, a grid frame rod is vertically arranged at the lower part of the cross grid frame, and the central arc track of the grid frame rod and the moving track of the moving knife assembly contact keep the same curvature; the left and right transverse sides of the upper side of the grid frame rod are grid frame fins; the upper short vertical is a grid head; the grid head is fixedly arranged on a central fixing plate at the front end of the isolation contact, so that a pair of grid fins are distributed on the left side and the right side of the central fixing plate.
Further, the magnetic conduction sheet is H-shaped, and the upper opening of the magnetic conduction sheet is a bayonet and is used for being assembled in clamping grooves on two sides of the grid pole; the three sides of the lower opening are stamped with arc guide channels; and the outer sides of the two legs at the bottom of the magnetic conduction sheet are bent to form a splash-proof baffle.
Further, the magnetic conductive sheet is made of a metal material easy to magnetize, and the graphene coating is coated on the surface of the magnetic conductive sheet.
Further, the magnetic bin is formed by injection molding of thermoplastic engineering plastics, the whole magnetic bin is square-tube-shaped, and the front end of the magnetic bin is provided with a clamping piece clamped in a groove of the grid fin; the cavity is a bin core with an open end and is used for installing the permanent magnet; the tail part of the plastic rivet is provided with a fixing hole for inserting the plastic rivet.
Further, the permanent magnet is made of samarium cobalt magnet, and the outer surface of the permanent magnet is partially encapsulated by a metal coat.
Further, the pair of permanent magnets are arranged at an angle of 19-30 degrees with the horizontal plane after being mounted.
Further, a copper tungsten alloy arc striking needle is welded on the grounding contact.
Compared with the prior art, the invention has the advantages that: the high-voltage load switch adopting the magnetic blowing combined type arc extinction eliminates the traditional arc extinction design, adopts the combination of the permanent magnet and the arc extinction grid to extinguish the arc, blows the arc to the interval of the arc striking closed assembly under the action of magnetic force when the movable contact is opened, the arc striking closed assembly generates electromagnetic force perpendicular to the movement track of the arc, the arc is divided into a plurality of sections under the action of the electromagnetic force, the arc is lengthened and rapidly cooled, the energy of the arc is absorbed, the arc is forced to extinguish or the arc is not re-burnt after zero crossing to accelerate the arc extinction, the arc extinction effect is obviously improved, and the high-voltage load switch has the advantages of timely arc extinction response and strong arc extinction capability. Meanwhile, the high-voltage load switch is smaller in whole size, simple in structure, low in cost and safer and more reliable.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high voltage load switch employing magnetic blow-out combined arc extinction in accordance with the present invention;
FIG. 2 is a schematic front view of a high voltage load switch employing magnetic blow-out composite quench in accordance with the present invention;
FIG. 3 is a left side view of a high voltage load switch employing magnetic blow-out composite quench in accordance with the present invention;
FIG. 4 is a schematic view of the overall structure of the arc striking seal assembly of the present invention;
FIG. 5 is a schematic view showing the overall structure of the magnetic sheet of the present invention;
FIG. 6 is a schematic view of the overall structure of a cross-shaped grid of the present invention;
FIG. 7 is a schematic diagram of the overall structure of the magnetic cartridge of the present invention;
FIG. 8 is a schematic view of the overall structure of the permanent magnet of the present invention;
fig. 9 is a schematic view of the overall structure of the isolation contact of the present invention.
Wherein:
1-rear fixing plate, 2-upper beam,
3-upper insulator, 4-isolation contact,
A 5-crank arm, a 6-insulating shaft,
7-front fixing plate, 8-connecting plate,
9-lower insulator, 10-conducting rod,
11-insulating sleeve, 12-movable knife assembly,
13-ground beam, 14-ground contact,
15-busbar, 16-arc striking closing component,
17-underbeam, 18-bearing,
19-permanent magnet, 20-copper tungsten alloy arc striking needle,
16-1-magnetic conductive sheet,
16-1-1-bayonet, 16-1-2-arc guide channel,
16-1-3-baffle plate,
16-2-plastic rivet,
16-3-cross grid,
16-3-1-grid frame rod, 16-3-2-grid frame fin,
16-3-3-grid head,
16-4-magnetic bin,
16-4-1-card, 16-4-2-bin core,
16-4-3-fixing holes.
Description of the embodiments
In the following, in order to facilitate the understanding of the technical solutions of the present invention by a person skilled in the art, reference will be made to the accompanying drawings for further description. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention.
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention. It may be evident, however, that one or more embodiments may be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Referring to fig. 1-3 and 9, the invention discloses a magnetic blow-out combined type arc extinction high-voltage load switch, which comprises a rear fixing plate 1 and a front fixing plate 7. An upper beam 2 is arranged on the right upper part between the rear fixing plate 1 and the front fixing plate 7, a lower beam 17 is arranged on the right lower part, and a grounding beam 13 is arranged on the left lower part. The upper beam 2 is provided with an upper insulator 3, the upper insulator 3 is provided with an isolation contact 4, the lower beam 17 is provided with a lower insulator 9, the lower insulator 9 is provided with a conductive rod 10, and the conductive rod 10 is in pin connection with the movable cutter assembly 12. The ground beam 13 is provided with a busbar 15, and the busbar 15 is provided with a ground contact 14. The movable knife component 12 is connected with the connecting plate 8 through an insulating sleeve 11 pin shaft, the connecting plate 8 is connected with the insulating shaft 6 through a crank arm 5 pin shaft, the tail end of the insulating shaft 6 is connected with the rear fixing plate 1 through a bearing 18, and the front end of the crank arm 5 penetrates through a corresponding hole of the front fixing plate 7 and is connected with the mechanism through the linkage of the insulating shaft 6.
When the isolating switch is particularly used as an isolating switch, the insulating shaft 6 rotates under the driving of the mechanism to drive the movable knife assembly 12 to rotate and make pressure contact with the isolating contact 4, so that isolating switch-on and a circuit conduction are realized. Under the drive of the mechanism, the insulating shaft 6 rotates to drive the movable knife assembly 12 to separate from the isolation contact 4, so that isolation brake separation is realized, and a loop is disconnected. Under the drive of the mechanism, the insulating shaft 6 rotates to drive the movable knife assembly 12 to be in pressure contact with the grounding contact 14, so that grounding closing is realized, and the circuit is grounded.
When the load switch is particularly used as a load switch, the arc striking closing assembly 16 is arranged after the copper tungsten alloy arc striking needle 20 is welded on the isolating contact 4 by adopting ultrasonic waves, and the arc striking closing assembly 16 is positioned on the upper side of the copper tungsten alloy arc striking needle 20. As shown in fig. 4, the arc striking closing assembly 16 consists of a magnetic conductive sheet 16-1, a plastic rivet 16-2, a grid 16-3, a magnetic bin 16-4 and a permanent magnet 19.
In specific implementation, as shown in fig. 5, the magnetic conductive sheet 16-1 is H-shaped, the upper opening is a bayonet 16-1-1, and three sides of the lower opening are stamped with arc guide channels 16-1-2, so as to prevent the arc from splashing and bend into a baffle 16-1-3 at the outer sides of the two legs. The embodiment is composed of 12 magnetic conductive sheets with curved arc-guiding channel design. The magnetic conductive sheet 16-1 is made of easily magnetized metal material, and is used for generating a strong magnetic field after being magnetized to attract the electric arc to enter the arc guide channel 16-1-2.
As shown in fig. 6, the cross-shaped grid frame 16-3 is formed by injection molding of thermoplastic engineering plastics, the lower long vertical grid frame rod 16-3-1 is arranged, and the central arc track of the grid frame rod 16-3-1 and the contact movement track of the movable knife assembly 12 keep the same curvature, so that the contact arc striking point track and the arc striking closing assembly always keep a constant arc striking angle. The left and right transverse bars are grid fins 16-3-2, and the upper short vertical bars are grid heads 16-3-3. The grid head 16-3-3 is fixedly arranged on a central fixing plate at the front end of the isolating contact 4, so that a pair of grid wings 16-3-2 are distributed on the left side and the right side of the central fixing plate.
As shown in FIG. 7, the magnetic bin 16-4 is also formed by injection molding, is square, has a card 16-4-1 at the front part and a bin core 16-4-2 at the cavity, and has a fixing hole 16-4-3 at the tail part. The concrete installation mode is that the inside of a groove of a grid frame rod 16-3-1 forming the grid frame 16-3 is clamped with a bayonet 16-1-1 forming a magnetic conductive sheet 16-1, a plurality of magnetic conductive sheets 16-1 are distributed at equal intervals and equidistant with the motion track of the movable cutter assembly 12, the inside of a groove of a grid frame fin 16-3-2 forming the grid frame 16-3 is clamped with a card 16-4-1 forming the magnetic bin 16-4, a permanent magnet 19 is installed in a bin core 16-4-2 forming the magnetic bin 16-4, and a plastic rivet 16-2 is pressed in a fixing hole 16-4-3 forming the magnetic bin 16-4 for limiting.
The arc striking closing assembly 16 is fixedly connected with the isolating contact 4 through a grid head 16-3-3 which forms a grid 16-3. When the movable knife assembly 12 is electrified and separated from the isolation contact 4 instantly, electric arcs cannot be avoided between the movable knife assembly 12 and the isolation contact 4, the movable knife assembly 12 and the isolation contact 4 are seriously ablated and burned out, and the electric arcs are very necessary to be extinguished quickly. As shown in FIG. 8, the permanent magnet 19 is placed in the core 16-4-2 of the left and right magnetic chambers 16-4, the centers of the two chambers form an included angle of 19-30 degrees with the horizontal plane, and the included angle can be set to be 15 degrees specifically, and the magnetism is kept in the same direction. The magnetic force is overlapped at the motion track of the movable knife assembly 12 to generate an electromagnetic force perpendicular to the motion track of the electric arc, the electric arc is pushed into the arc guide channel 16-1-2 of the magnetic conductive sheet 16-1 under the action of the electromagnetic force, and the electric arc is segmented into a plurality of segments and elongated to accelerate the extinction of the electric arc. The permanent magnet 19 can be made of samarium cobalt magnet, and has the characteristics of high temperature resistance and difficult demagnetization.
In summary, the high-voltage load switch adopting the magnetic blowing combined arc extinction designed in the invention abandons the traditional arc extinction design, adopts the combination arc extinction of the permanent magnet and the arc extinction grid, blows the arc into the interval of the arc striking closed assembly under the action of magnetic force when the moving contact breaks the gate, the arc striking closed assembly generates an electromagnetic force perpendicular to the arc motion track, the arc is divided into a plurality of sections under the action of the electromagnetic force, the sections are lengthened and cooled rapidly, the energy of the arc is absorbed, the arc is forced to extinguish or the arc is not re-combusted after zero crossing to accelerate the arc extinction, the arc extinction effect is obviously improved, and the high-voltage load switch has the advantages of timely arc extinction response and strong arc extinction capability. Meanwhile, the high-voltage load switch is smaller in whole size, simple in structure, low in cost and safer and more reliable.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (6)
1. The high-voltage load switch adopting magnetic blow-out combined arc extinction is characterized by comprising a rear fixing plate (1) and a front fixing plate (7); an upper beam (2) is arranged on the right upper part between the rear fixing plate (1) and the front fixing plate (7), a lower beam (17) is arranged on the right lower part, and a grounding beam (13) is arranged on the left lower part; a plurality of upper insulators (3) are arranged on the upper beam (2) at intervals; a plurality of isolation contacts (4) are correspondingly arranged on the plurality of upper insulators (3); a plurality of lower insulators (9) are arranged on the lower beam (17) at intervals; the plurality of lower insulators (9) correspond to the plurality of upper insulators (3); a conducting rod (10) is arranged on the lower insulator (9); the conducting rod (10) is in pin shaft connection with the movable cutter assembly (12); the grounding beam (13) is provided with a busbar (15); a plurality of grounding contacts (14) are arranged on the busbar (15) at intervals; the movable knife assembly (12) is connected with the connecting plate (8) through an insulating sleeve (11) pin shaft; the connecting plate (8) is connected with the insulating shaft (6) through a crank arm (5) pin shaft; the tail end of the insulating shaft (6) is connected with the rear fixing plate (1) through a bearing (18), and the front end of the insulating shaft (6) passes through a corresponding hole of the front fixing plate (7) to be connected with a driving mechanism; the lower side of the isolation contact (4) is provided with a copper tungsten alloy arc striking needle (20) and an arc striking sealing assembly (16); the arc striking closing component (16) is positioned on the upper side of the copper-tungsten alloy arc striking needle (20); the arc striking sealing assembly (16) comprises a plurality of magnetic conduction sheets (16-1), plastic rivets (16-2), a cross grid (16-3), a pair of magnetic bins (16-4) and a pair of permanent magnets (19); the magnetic conductive sheets (16-1) are arranged on two sides of the cross grid (16-3) in an array manner; the pair of magnetic bins (16-4) are respectively arranged at two sides of the cross grid (16-3) and positioned at the outer sides of the magnetic conducting sheets (16-1) at the two sides; the pair of permanent magnets (19) are respectively arranged in the pair of magnetic bins (16-4); -pressing the plastic rivet (16-2) in the magnetic bin (16-4) to limit the permanent magnet (19); the cross grid frame (16-3) is formed by injection molding of thermoplastic engineering plastics, a grid frame rod (16-3-1) is vertically arranged at the lower part of the cross grid frame, and the central arc track of the grid frame rod (16-3-1) and the contact movement track of the movable knife assembly (12) keep the same curvature; the left and right transverse sides of the upper side of the grid pole (16-3-1) are grid fins (16-3-2); the upper short vertical is a grid head (16-3-3); the grid heads (16-3-3) are fixedly arranged on a central fixing plate at the front end of the isolation contact (4) so that a pair of grid fins (16-3-2) are distributed on the left side and the right side of the central fixing plate; the magnetic conduction sheet (16-1) is H-shaped, and the upper opening of the magnetic conduction sheet is provided with a bayonet (16-1-1) and is used for being assembled in clamping grooves on two sides of the grid pole (16-3-1); three sides of the lower opening of the upper opening are stamped with arc guide channels (16-1-2); the outer sides of two legs at the bottom of the magnetic conduction sheet (16-1) are bent to form a splash-proof baffle (16-1-3).
2. The high-voltage load switch adopting magnetic blow-out combined type arc quenching according to claim 1, wherein the magnetic conductive sheet (16-1) is made of a metal material easy to magnetize, and a graphene coating is coated on the surface of the magnetic conductive sheet.
3. The high-voltage load switch adopting magnetic blow-out combined arc quenching according to claim 2, wherein the magnetic bin (16-4) is formed by injection molding of thermoplastic engineering plastics, is in a square tube shape as a whole, and is provided with a card (16-4-1) clamped in a groove of the grid fin (16-3-2) at the front end thereof; the cavity is a bin core (16-4-2) with an open end and is used for installing the permanent magnet (19); the tail part of the plastic rivet is provided with a fixing hole (16-4-3) for inserting the plastic rivet (16-2).
4. A high voltage load switch employing a magnetic blow out composite arc quenching according to claim 3 wherein said permanent magnet (19) is a samarium cobalt magnet and the outer surface thereof is partially encapsulated by a metallic garment.
5. The high-voltage load switch adopting magnetic blow-out combined arc quenching according to claim 4, wherein the pair of permanent magnets (19) are arranged at an angle of 19-30 degrees with respect to the horizontal plane after being mounted.
6. The high voltage load switch employing magnetic blow out combined arc quenching as recited in claim 5 wherein said ground contact (14) is welded with a copper tungsten alloy arc striking pin (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311076504.7A CN117059428B (en) | 2023-08-24 | 2023-08-24 | High-voltage load switch adopting magnetic blow-out combined type arc extinction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311076504.7A CN117059428B (en) | 2023-08-24 | 2023-08-24 | High-voltage load switch adopting magnetic blow-out combined type arc extinction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117059428A CN117059428A (en) | 2023-11-14 |
| CN117059428B true CN117059428B (en) | 2024-03-19 |
Family
ID=88653312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311076504.7A Active CN117059428B (en) | 2023-08-24 | 2023-08-24 | High-voltage load switch adopting magnetic blow-out combined type arc extinction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117059428B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05290682A (en) * | 1992-04-10 | 1993-11-05 | Meidensha Corp | Dc high speed circuit breaker |
| JP2007207512A (en) * | 2006-01-31 | 2007-08-16 | Matsushita Electric Works Ltd | Arc-extinguishing device |
| CN103500675A (en) * | 2013-10-10 | 2014-01-08 | 益和电气集团股份有限公司 | Arc-extinguishing device suitable for switch cabinet |
| CN212934470U (en) * | 2020-10-13 | 2021-04-09 | 瓯越电力科技有限公司 | Grounding arc striking device of isolating switch |
| CN216120052U (en) * | 2021-11-02 | 2022-03-22 | 四川知而道电气有限公司 | Load switch with arc extinguishing function |
| CN217507180U (en) * | 2022-04-06 | 2022-09-27 | 汇网电气有限公司 | Upper isolating switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013111953A1 (en) * | 2012-12-20 | 2014-06-26 | Eaton Electrical Ip Gmbh & Co. Kg | switchgear |
-
2023
- 2023-08-24 CN CN202311076504.7A patent/CN117059428B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05290682A (en) * | 1992-04-10 | 1993-11-05 | Meidensha Corp | Dc high speed circuit breaker |
| JP2007207512A (en) * | 2006-01-31 | 2007-08-16 | Matsushita Electric Works Ltd | Arc-extinguishing device |
| CN103500675A (en) * | 2013-10-10 | 2014-01-08 | 益和电气集团股份有限公司 | Arc-extinguishing device suitable for switch cabinet |
| CN212934470U (en) * | 2020-10-13 | 2021-04-09 | 瓯越电力科技有限公司 | Grounding arc striking device of isolating switch |
| CN216120052U (en) * | 2021-11-02 | 2022-03-22 | 四川知而道电气有限公司 | Load switch with arc extinguishing function |
| CN217507180U (en) * | 2022-04-06 | 2022-09-27 | 汇网电气有限公司 | Upper isolating switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117059428A (en) | 2023-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107342199B (en) | Housing type shielding arc extinguishing mechanism | |
| WO2022057606A1 (en) | Direct current contactor, distribution box, power battery assembly, and vehicle | |
| CN106098477A (en) | A kind of high-voltage DC contactor of band magnetic coil arc extinguishing | |
| CN111640612A (en) | Quick repulsion operating mechanism maintained by spring group | |
| CN117059428B (en) | High-voltage load switch adopting magnetic blow-out combined type arc extinction | |
| WO2024017076A1 (en) | Arc extinguishing device for extinguishing arc in electric switch, and electric switch | |
| CN107146723B (en) | Magnetic blow-out system, arc extinguishing device, single-pole circuit breaker and multi-pole circuit breaker | |
| CN105470067A (en) | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions | |
| CN214797231U (en) | Breaking device | |
| CN211578652U (en) | Permanent-magnet arc-extinguishing non-polar high-voltage large-current DC contactor | |
| CN111430184A (en) | Permanent magnet arc extinguishing non-polar high-voltage large-current direct current contactor | |
| CN114843159A (en) | Direct current breaker static contact device with non-polarity magnetic blow | |
| CN209766346U (en) | Arc extinguishing system of direct current breaker | |
| CN211529827U (en) | Arc extinguishing system of direct current contactor | |
| CN106252164A (en) | A kind of track traffic high-voltage DC contactor | |
| CN211529826U (en) | Direct current contactor contact arc extinguishing system | |
| CN204390941U (en) | Magnetic blowing arc extinguishing switch | |
| CN107342196B (en) | Arc extinguishing device of high-breaking plastic casing type circuit breaker | |
| CN113539745A (en) | Arc extinguishing system of direct current contactor | |
| CN202549755U (en) | Arc extinguishing system for plastic shell breaker with arc regurgitating preventing function | |
| CN107017137B (en) | Moving contact system of frame circuit breaker | |
| CN106997833B (en) | Contact system of frame circuit breaker | |
| CN102915894B (en) | Arc-blowing device of direct-current circuit breaker | |
| CN212750736U (en) | Static contact component of small-volume high-voltage direct-current contactor and direct-current contactor | |
| CN213366429U (en) | Magnetic conductive sheet capable of rapidly striking arc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |