CN209087682U - A kind of gas-insulated arc-control device - Google Patents
A kind of gas-insulated arc-control device Download PDFInfo
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- CN209087682U CN209087682U CN201821099342.3U CN201821099342U CN209087682U CN 209087682 U CN209087682 U CN 209087682U CN 201821099342 U CN201821099342 U CN 201821099342U CN 209087682 U CN209087682 U CN 209087682U
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- metal
- retaining ring
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- gas
- control device
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Abstract
The utility model provides a kind of gas-insulated arc-control device, including main body, the main body includes the outer retaining ring of metal, retaining ring in metal, upper limit plate, lower limiting board, limit circlip and metal tape winding, it is characterized by: outside retaining ring and being fixed between upper limit plate and lower limiting board in the outer retaining ring setting metal of the metal, retaining ring sequentially passes through the middle through-hole of the lower limiting board and upper limit plate from bottom to top and is limited to lower limiting board on the bottom edge that retaining ring in metal turns up in metal, limit circlip is fastened in metal outside retaining ring and is pressed on the top of upper limit plate, hollow sandwich is formed between retaining ring in the outer retaining ring of metal and metal, metal tape winding surround and is wrapped in inside hollow sandwich.The utility model uses the design without arc end, allows arcing automatically into arc-extinguish chamber, largely enhances the durability of arc extinguishing ability and arc-extinguish chamber.
Description
Technical field
The utility model relates to gas insulated load switch cabinet technical field, especially a kind of gas-insulated arc-control device.
Background technique
When existing AC load switch or breaker cut-off circuit, since ionization can produce in contact breaking course
Raw electric arc.At the same time, the electronics and negative ions to dissociate in arc gap can be compound when meeting, and re-forms neutral gas
There is deionization phenomenon and weakens ionization process in molecule.Therefore, ionization and deionization are simultaneous, work as ionization rate
When greater than deionization speed, electric arc meeting sustained combustion, conversely, electric arc can extinguish.Arc quenching method used at present mainly has, directly
Action pneumatic type, rotation air pressing type, gyromagnet arc extinguishing type and arc-chute arc extinguishing type.Wherein gyromagnet arc extinguishing type, exactly when high pressure is cut-off,
Petersen coil is introduced using arc extinguishing electrode handle arc current is introduced, the magnetic field that arc current generates in Petersen coil keeps electric arc fast
Speed rotation, the electric arc of rotation are elongated, constantly contact fresh SF6 insulating gas, discharge thermal energy, be cooled quickly, work as electricity
When flowing through zero, electric arc is off.
Existing arc-extinguish chamber generallys use fixed ring winding enameled wire or metal tape winding, winding starting point and striking in plastics
End electrical connection, winding ends are connect with the outer anchor ear of metal.Electric arc introduces electric arc by arc end, under the magneticaction that winding generates
It is rotated in fixed ring in plastics, electric arc is elongated, and heat is released, arc extinction when causing current over-zero, arc quenching method list
One and arc end striking be easy the scaling loss under high current or hard arc, poor reliability.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of gas-insulated arc-control device, while using quick
Elongating arc and cooling two kinds of arc quenching methods of electric arc, arc quenching effect is good, has stronger durability, relatively reliable.
To achieve the above object, the utility model is achieved by following technical proposals: a kind of gas-insulated interrupter cartridge
It sets, including main body, the main body includes retaining ring outside metal, retaining ring, upper limit plate, lower limiting board, limit circlip and gold in metal
Belong to band winding, it is characterised in that: the outer retaining ring of the metal is arranged in metal outside retaining ring and is fixed on upper limit plate and lower limit
Between plate, retaining ring sequentially passes through the middle through-hole of the lower limiting board and upper limit plate from bottom to top and makes lower limiting board in metal
It is limited on the bottom edge that retaining ring in metal turns up, limit circlip is fastened in metal outside retaining ring and is pressed on the top of upper limit plate
Portion, forms hollow sandwich in the outer retaining ring of metal and metal between retaining ring, metal tape winding is around being wrapped in inside hollow sandwich.
The side of the main body is provided with installation part, and the installation part is fixed by screws on the outer retaining ring of metal.
The installation part has the mounting portion that is obliquely installed, is provided on mounting portion for by the mounting hole of the present apparatus.
The lower limiting board, which corresponds at installation part, is provided with empty avoiding mouth, and the setting of empty avoiding mouth can facilitate gas-insulated arc extinguishing
The fixation and installation of device.
The metal tape winding includes the metal tape and layer insulation band for being spaced apart from each other coiling.
The metal tape is made of copper or iron material.
The number of turns of the metal tape winding be 20-30 circle, metal tape with a thickness of 01. ~ 0.25mm.
The layer insulation band is made of flame-retardant insulating material.
Retaining ring is all made of copper outside or iron material is made for retaining ring and metal in the metal.
The utility model has the following beneficial effects:
The utility model uses two kinds of rapid elongation electric arcs and cooling two kinds of arc quenching principles of electric arc simultaneously, makes arcing automatic
Into arc-extinguish chamber, arc end striking is not needed, electric arc in metal quickly elongate in shield by rotation, and thermal energy is released, until electric current mistake
Arc extinction when zero largely enhances the durability of arc extinguishing ability and arc-extinguish chamber.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic cross-section of the utility model；
Fig. 3 is state diagram when the utility model is applied to three-stations load switch or killer switch；
Wherein, 1- casing, 2- gas tank, 3- moving contact, 4- contact connecting rod, 5- grounding contact, 6- static contact, 7- interrupter cartridge
It sets, 8- bus, 9- closing switch position, 10- separating brake switch position；Under 11- installation part, 12- upper limit plate, 13- limit circlip, 14-
Retaining ring, 16- metal outer retaining ring, 17- metal tape winding in limit plate, 15- metal.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
As depicted in figs. 1 and 2: a kind of gas-insulated arc-control device, including main body, the main body include the outer retaining ring of metal
16, retaining ring 15, upper limit plate 12, lower limiting board 14, limit circlip 13 and metal tape winding 17 in metal, it is characterised in that: institute
It states the outer retaining ring 16 of metal to be arranged between upper limit plate 12 and lower limiting board 14, upper limit plate 12 and lower limiting board 14 have coaxially
The middle through-hole of setting, retaining ring 15 is provided with the bottom edge turned up in the metal, and retaining ring 15 sequentially passes through from bottom to top in metal
The middle through-hole of the lower limiting board 14 and upper limit plate 12 simultaneously makes lower limiting board 14 be limited to the bottom that retaining ring 15 turns up in metal
Bian Shang, limit circlip 13 are fastened in metal outside retaining ring 15 and are pressed on the top of upper limit plate 12, pass through retaining ring in metal
15 bottom edges turned up and the mutual cooperation of limit circlip 13 make upper limit plate 12 and lower limiting board 14 be able to tightly be pressed together on
The top and bottom of the outer retaining ring 16 of metal, realize the integrally-built fixation of gas-insulated arc-control device, and the outer retaining ring 16 of metal is located at
In metal outside retaining ring 15, hollow sandwich is formed between the two, and metal tape winding 17 surround and is wrapped in inside hollow sandwich.
The outer retaining ring 16 of retaining ring 15, metal is all made of copper in the metal or iron material is made, and metal tape winding 17 is sealed in
Inside hollow sandwich, the metal tape winding 17 is using the metal tape coiling synchronous with layer insulation band with a thickness of 01. ~ 0.25mm
It forms, the number of turns is 20-30 circle, and metal tape is made of copper or iron material, and layer insulation band is used for the interlayer of metal tape winding 17
In insulation, it is made of flame-retardant insulating material.
Further, for the ease of installation, the side of main body is provided with installation part 11, and the installation part 11 is solid by screw
It is scheduled on the outer retaining ring 16 of metal, mounting hole is provided on mounting portion, it can will this be practical new by the screw that is adapted to mounting hole
Type is fixed on conducting bracket.
Further, easier for installation and firm in order to make, the mounting portion of installation part 11 tilts 30-60 °.
Further, the lower limiting board 14, which corresponds at installation part 11, is provided with empty avoiding mouth, exhausted for fixed gas
The fixed link of edge arc-control device can penetrate 11 inside of installation part from empty avoiding mouth and be bonded with mounting portion, then is fixed with screw
The installation that gas-insulated arc-control device can be completed realizes the mounting means of fixed link interpolation type.
As shown in figure 3, the utility model is applied to the on-load switch or breaker that switch is three station positions, thirdly work
Position position is to close-cut-offfing-to be grounded, and respectively represents closing switch position 9, separating brake switch position 10 and earthing switch position, and each work
Position is switched over by switch tool, the three-station, including casing 1, moving contact 3, grounding contact 5, static contact 6, touching
Head connecting rod 4 and arc-control device 7, it is characterised in that: the casing 1 is mounted in the gas tank 2 filled with SF6 gas, casing 1
Top is hinged with moving contact 3, and grounding contact 5 is located at 1 upper right side of casing, the both ends of contact connecting rod 4 respectively with moving contact 3 and connect
Ground contact 5 is hinged, and static contact 6 is located at 1 upper left side of casing, is connected at the top of static contact 6 by connector and bus 8, on connector
The arc-control device 7 of arc end is provided with by conducting bracket.The process of arc extinguishing are as follows: after moving contact 3 and static contact 6 separate,
Electric arc can be generated between moving contact 3 and static contact 6.Electric arc arc root instantaneously moves in arc-control device 7 from static contact 6.
Conventional 7 main body of arc-control device is plastic hoop, it is therefore necessary to an opening be arranged on plastic hoop, and in opening
Arc end, which is arranged, to introduce electric current or electric current inside arc-control device 7, and in high current or hard arc, arc end is with striking
Number increases that arc end itself is easy to oxidize and scaling loss, and striking effect is caused to be deteriorated.
The utility model uses rapid elongation electric arc and cooling two kinds of arc quenching methods of electric arc simultaneously, uses nothing in structure
The design of arc end, inside and outside retaining ring are made of the metal material having good conductive property, and electric current or electric arc can instantaneous quilts
It is introduced directly into metal line winding group, in the present embodiment, metal line winding group uses the brass band and interlayer in the section 0.15mmx52mm
The synchronous coiling of insulating tape forms, and electric current generates magnetic field by metallic copper band winding 17, and under the influence of a magnetic field, electric arc is inhaled into gold
It quickly rotates, elongates, the electric arc of rotation constantly contacts fresh SF6 gas, discharges thermal energy, cold quickly in retaining ring 15 in belonging to
But, in current over-zero, arc extinction, arc extinguishing speed is fast, and effect is good, and device durability is strong.
The description of the embodiments and the specification only illustrate the principle of the present utility model and most preferred embodiment, is not taking off
Under the premise of from the spirit and scope of the utility model, the utility model also has various changes and improvements, these changes and improvements
It falls within the scope of the claimed invention.
Claims (9)
1. a kind of gas-insulated arc-control device, including main body, the main body includes retaining ring outside metal, retaining ring, upper limit in metal
Plate, lower limiting board, limit circlip and metal tape winding, it is characterised in that: in the outer retaining ring setting metal of the metal outside retaining ring
And be fixed between upper limit plate and lower limiting board, retaining ring sequentially passes through the lower limiting board and upper limit from bottom to top in metal
The middle through-hole of plate is simultaneously limited to lower limiting board on the bottom edge that retaining ring in metal turns up, and limit circlip is fastened on retaining ring in metal
Top that is external and being pressed on upper limit plate forms hollow sandwich, metal tape winding between retaining ring in the outer retaining ring of metal and metal
It surround and is wrapped in inside hollow sandwich.
2. gas-insulated arc-control device according to claim 1, it is characterised in that: the side of the main body is provided with installation
Part, the installation part are fixed on the outer retaining ring of metal.
3. gas-insulated arc-control device according to claim 2, it is characterised in that: the installation part, which has, to be obliquely installed
Mounting portion is provided with mounting hole for fixing on mounting portion.
4. gas-insulated arc-control device according to claim 2, it is characterised in that: the lower limiting board corresponds to installation part
Place is provided with empty avoiding mouth.
5. gas-insulated arc-control device as claimed in any of claims 1 to 4, it is characterised in that: the metal tape
Winding includes the metal tape and layer insulation band for being spaced apart from each other coiling.
6. gas-insulated arc-control device according to claim 5, it is characterised in that: the metal tape uses copper or iron material
It is made.
7. gas-insulated arc-control device according to claim 6, it is characterised in that: the number of turns of the metal tape winding is
20-30 circle, metal tape with a thickness of 01.~0.25mm.
8. gas-insulated arc-control device according to claim 5, it is characterised in that: the layer insulation band is using fire-retardant exhausted
Edge material is made.
9. gas-insulated arc-control device as claimed in any of claims 1 to 4, it is characterised in that: in the metal
Retaining ring and the outer equal ring of retaining ring of metal are made of copper or iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821099342.3U CN209087682U (en) | 2018-07-12 | 2018-07-12 | A kind of gas-insulated arc-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821099342.3U CN209087682U (en) | 2018-07-12 | 2018-07-12 | A kind of gas-insulated arc-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087682U true CN209087682U (en) | 2019-07-09 |
Family
ID=67113440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821099342.3U Active CN209087682U (en) | 2018-07-12 | 2018-07-12 | A kind of gas-insulated arc-control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209087682U (en) |
-
2018
- 2018-07-12 CN CN201821099342.3U patent/CN209087682U/en active Active
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