CN110071013A - A kind of piston type breaker - Google Patents
A kind of piston type breaker Download PDFInfo
- Publication number
- CN110071013A CN110071013A CN201910424511.9A CN201910424511A CN110071013A CN 110071013 A CN110071013 A CN 110071013A CN 201910424511 A CN201910424511 A CN 201910424511A CN 110071013 A CN110071013 A CN 110071013A
- Authority
- CN
- China
- Prior art keywords
- shell
- cooling pipe
- moving contact
- static contact
- piston type
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 39
- 230000003068 static effect Effects 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 229910018503 SF6 Inorganic materials 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 7
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010891 electric arc Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000009967 tasteless effect Effects 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
Landscapes
- Circuit Breakers (AREA)
Abstract
A kind of piston type breaker, comprising: static contact, moving contact and shell；The static contact is fixedly mounted lower part inside the shell, in the up and down shell being mounted on right above static contact of moving contact；The shell 4 is the cylindrical body of inner hollow, cylindrical body and extraneous sealing；The envelope filled full gas；The shell further includes cooling pipe；The inner space of the cooling pipe upper end connection shell upper, cooling pipe lower end is connected to lower than cooling pipe upper end and with the housing interior volume on static contact top；The moving contact lower end is the cylindrical body that matches with inner surface of outer cover, and down space on shell is isolated in moving contact lower end.To solve existing breaker structure complexity, the high problem of cost of manufacture.
Description
Technical field
The present invention relates to electric power tool field more particularly to a kind of piston type breakers.
Background technique
Existing piston type breaker generally includes static contact, moving contact, arc-chute and shell；The fixed peace of the static contact
Mounted in outer casing underpart, moving contact is mounted on right above static contact by the way that shell is up and down；Dynamic touching is equipped in the middle part of the arc-chute
Head mounting hole, moving contact install bore dia and are greater than moving contact diameter, and arc-chute is fixedly mounted on static contact top simultaneously by shell
It is located at moving contact mounting hole right above static contact, moving contact is mounted in moving contact mounting hole；The arc-chute include 2 with
On the grid that is parallel to each other.
Arc quenching principle is that the sheet metal that many is parallel to each other is placed in electric arc, and electric arc is divided into several short arcs, utilizes friendship
The proximal pole pressure drop of the nearly cathode effect and direct-current arc of galvanic electricity arc come achieve the purpose that extinguish electric arc.But this breaker is asked
Topic is that structure is complex, needs to make arc-chute, and cost of manufacture is higher.
Summary of the invention
The technical problem to be solved by the present invention is a kind of piston type breaker is provided, to solve the above problems.
The technical scheme is that a kind of piston type breaker, comprising:
Static contact, moving contact and shell；
Lower part inside the shell, the up and down shell being mounted on right above static contact of moving contact is fixedly mounted in the static contact
It is interior；
The shell 4 is the cylindrical body of inner hollow, cylindrical body and extraneous sealing；
The envelope filled full gas；
The shell further includes cooling pipe；
The inner space of cooling pipe upper end connection shell upper, cooling pipe lower end lower than cooling pipe upper end and with it is quiet
The housing interior volume on contact top is connected to；
The moving contact lower end is the cylindrical body that matches with inner surface of outer cover, and down space on shell is isolated in moving contact lower end.
The gas is sulfur hexafluoride.
The cooling pipe material is high-temperature insulation ceramics.
The cooling pipe lower end diameter is less than cooling pipe upper end diameter.
The cooling pipe includes 3 or more；
The cooling pipe lower end is evenly distributed on shell one week.
The cooling pipe lower end is different at a distance from the junction of shell and static contact.
The beneficial effects of the present invention are:
Compared with prior art, when the invention works, moving contact moves upwards generation piston effect, so that moving contact squeezes shell
Interior upper air, so that the air pressure on moving contact top is greater than the air pressure of moving contact lower part, so that gas passes through cooling tube
Road flow to moving contact lower space from moving contact upper space, and the gas temperature of one side moving contact upper space is lower can be with
Play the role of reducing moving contact lower space temperature, so that arc quenching effect is generated, on the other hand due to moving contact movement velocity
It is higher, so that speed is larger when gas is sprayed from moving contact lower space, can play the role of blowing out electric arc, structure of the invention
It is relatively simple, good arc quenching effect, low manufacture cost can be played.
Detailed description of the invention
Fig. 1 is front view of the invention；
Fig. 2 is the cross-sectional view of Section A-A of the invention；
Fig. 3 is perspective view of the invention；
In figure: 1 static contact, 2 moving contacts, 4 shells, 5 cooling pipes.
Specific embodiment
With reference to the accompanying drawing and invention is described further in specific embodiment:
Referring to figs. 1 to Fig. 3, a kind of piston type breaker, comprising:
Static contact 1, moving contact 2 and shell 4；
The static contact 1 is fixedly mounted on the lower part in shell 4, and moving contact 2 is up and down to be mounted on the outer of 1 surface of static contact
In shell；
The shell 4 is the cylindrical body of inner hollow, cylindrical body and extraneous sealing；
Gassy in the shell 4；
The shell 4 further includes cooling pipe 5；
The inner space on 5 upper end of the cooling pipe connection, 4 top of shell, 5 lower end of cooling pipe is simultaneously lower than 5 upper end of cooling pipe
It is connected to 4 inner space of shell on 1 top of static contact；
2 lower end of moving contact is to match cylindrical body with 4 inner surface of shell, 2 lower end of moving contact make on shell 4 down space every
From.
When moving contact 2 disconnects, electric arc is generated between moving contact 2 and static contact 1, moving contact 2 moves upwards generation piston effect,
So that moving contact 2 squeezes the upper air in shell 4, so that the air pressure on 2 top of moving contact is greater than the air pressure of 2 lower part of moving contact,
So that gas flow to 2 lower space of moving contact, one side moving contact 2 from 2 upper space of moving contact by cooling pipe 5
The gas temperature of upper space is lower can be played the role of reducing by 2 lower space temperature of moving contact, so that arc quenching effect is generated,
On the other hand since 2 movement velocity of moving contact is higher, so that speed is larger when gas is sprayed from 2 lower space of moving contact, it can be with
Play the role of blowing out electric arc.
The gas is sulfur hexafluoride.Sulfur hexafluoride has lot of advantages as a kind of insulating gas, be it is a kind of it is colourless,
Tasteless, nontoxic, non-flammable inert gas, and have excellent cooling arc characteristic, especially there is high arc temperature in switchgear
Under the action of a possibility that generating higher cooling effect, avoiding localized hyperthermia.The insulation performance of sulfur hexafluoride is considerably beyond biography
Oil, the air insulation medium of system.It is used in electrical equipment, can reduce the size of equipment, improves apparatus insulated reliability.
5 material of cooling pipe is high-temperature insulation ceramics.High-temperature insulation ceramic insulation, can be avoided in breaker
Portion's electric current is transmitted to outside, and is also resistant to the high temperature that electric arc is discharged.
5 lower end diameter of cooling pipe is less than 5 upper end diameter of cooling pipe.The smaller hexafluoro for making blowout of lower end diameter
Change sulphur flow velocity faster, sulfur hexafluoride flow velocity is faster better to the blowing-out effect of electric arc.
The cooling pipe 5 includes 3 or more；
5 lower end of cooling pipe is evenly distributed on shell 4 one weeks.
Enable sulfur hexafluoride to blow out electric arc from surrounding, it is more preferable to blow out effect.
5 lower end of cooling pipe is different at a distance from the junction of shell 4 and static contact 1.
So that electric arc can be blown out from different height by the air of high-speed motion, increase arc quenching effect.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (6)
1. a kind of piston type breaker, comprising:
Static contact (1), moving contact (2) and shell (4)；
The static contact (1) is fixedly mounted on the lower part in shell (4), and moving contact (2) is up and down to be mounted on static contact (1) just
In the shell of top；
It is characterized in that,
The shell (4) is the cylindrical body of inner hollow, cylindrical body and extraneous sealing；
The interior gassy of the shell (4)；
The shell (4) further includes cooling pipe (5)；
The inner space on cooling pipe (5) upper end connection shell (4) top, cooling pipe (5) lower end is lower than cooling pipe
(5) it upper end and is connected to shell (4) inner space on static contact (1) top；
Moving contact (2) lower end is the cylindrical body that matches with shell (4) inner surface, and moving contact (2) lower end makes shell (4) up and down
Space isolation.
2. piston type breaker according to claim 1, which is characterized in that
The gas is sulfur hexafluoride.
3. piston type breaker according to claim 1, which is characterized in that
Cooling pipe (5) material is high-temperature insulation ceramics.
4. piston type breaker according to claim 1, which is characterized in that
Cooling pipe (5) lower end diameter is less than cooling pipe (5) upper end diameter.
5. piston type breaker according to claim 1, which is characterized in that
The cooling pipe (5) includes 3 or more；
Cooling pipe (5) lower end is evenly distributed on shell (4) one weeks.
6. piston type breaker according to claim 5, which is characterized in that
Cooling pipe (5) lower end is different at a distance from the junction and static contact (1) of shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910424511.9A CN110071013A (en) | 2019-05-21 | 2019-05-21 | A kind of piston type breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910424511.9A CN110071013A (en) | 2019-05-21 | 2019-05-21 | A kind of piston type breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110071013A true CN110071013A (en) | 2019-07-30 |
Family
ID=67371177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910424511.9A Pending CN110071013A (en) | 2019-05-21 | 2019-05-21 | A kind of piston type breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110071013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403231A (en) * | 2020-03-13 | 2020-07-10 | 云南电网有限责任公司电力科学研究院 | Hybrid arc extinguishing chamber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346370A (en) * | 2018-11-01 | 2019-02-15 | 沈阳工业大学 | A kind of piston helps gas dual intensity formula high pressure SF6Arc-extinguishing chamber of circuit breaker |
-
2019
- 2019-05-21 CN CN201910424511.9A patent/CN110071013A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346370A (en) * | 2018-11-01 | 2019-02-15 | 沈阳工业大学 | A kind of piston helps gas dual intensity formula high pressure SF6Arc-extinguishing chamber of circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403231A (en) * | 2020-03-13 | 2020-07-10 | 云南电网有限责任公司电力科学研究院 | Hybrid arc extinguishing chamber |
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| PB01 | Publication | ||
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