CN107768158B - Zero-arcing arc extinguish chamber structure capable of enhancing electric arc elimination capacity - Google Patents
Zero-arcing arc extinguish chamber structure capable of enhancing electric arc elimination capacity Download PDFInfo
- Publication number
- CN107768158B CN107768158B CN201610698333.5A CN201610698333A CN107768158B CN 107768158 B CN107768158 B CN 107768158B CN 201610698333 A CN201610698333 A CN 201610698333A CN 107768158 B CN107768158 B CN 107768158B
- Authority
- CN
- China
- Prior art keywords
- arc
- arc extinguishing
- chamber
- component
- filter screen
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
- H01H9/362—Mounting of plates in arc chamber
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a zero arcing explosion chamber structure of reinforcing elimination electric arc ability, it includes explosion chamber subassembly (1), its characterized in that: an arc extinguishing chamber upper cover component (2) is arranged on the arc extinguishing chamber component (1), and an arc extinguishing chamber filter screen component (3) is arranged at the joint of the arc extinguishing chamber component (1) and the arc extinguishing chamber upper cover component (2); the invention adds the dissociation gas eliminating device with the W-shaped arc extinguishing plates above the traditional parallel arc extinguishing plate group. When the high-current breaking is carried out, the free metal particles in a high ionization state generated by breaking can be effectively eliminated, the free ionized particles are prevented from flying out of the arc extinguish chamber, the damage of interphase short circuit is avoided, and the zero arcing of the high-current breaking is realized.
Description
Technical Field
The invention belongs to the technical field of circuit breaker structures, and particularly relates to a zero-arcing arc extinguish chamber structure capable of enhancing the capability of eliminating electric arcs.
Background
In an industrial low-voltage power system, a conventional circuit breaker is an important component of a power distribution network, is used for distributing electric energy, connecting and disconnecting current in a power grid circuit, and protecting lines and power supply equipment from damage caused by faults such as overload, undervoltage, short circuit, single-phase grounding and the like, and is an important component of a power supply system.
When the circuit breaks down, the breaker triggers the operation mechanism to act when monitoring that the current value exceeds the preset protection current value, so that the moving contact and the static contact are quickly disconnected, and the circuit is disconnected. However, in the breaking process, the moving contact and the static contact generate electric arcs in the breaking process due to the overlarge voltage and current values, and the electric field is too strong, so that the gas in the breaker is highly ionized to generate a large amount of free metal ions, and if the free metal particles fly out of the breaker, short circuits and burnings of peripheral circuits can be caused, thereby causing disasters.
A series of parallel flash barriers are arranged in an arc extinguish chamber of a traditional universal circuit breaker, and a single-layer or multi-layer filter screen perpendicular to the flash barriers is additionally arranged above the flash barriers so as to achieve the purpose of eliminating free metal ions. Although the traditional technical scheme can eliminate part of free metal particles, part of free metal ions can overflow the arc extinguish chamber, and potential hazards exist.
Chinese patent CN1169581A discloses a gas deionization device and an arc extinguish chamber equipped with the same, the deionization device comprises a porous screen composed of one or more layers of metal braided fabric, each layer of braided fabric is formed by weaving parallel and spaced straight metal wires and wave-shaped metal wires in a tightly crossed manner, the wave-shaped metal wires and the straight metal wires vertically and alternately pass above and below at least one straight metal wire arranged continuously, the device can see the free metal ions at the bottom, but the device is composed of at least one layer of metal braided net with the pore diameter of hundreds of micrometers, the requirement on the production and processing technology is high, and the cost is high, and the device is not beneficial to industrial production.
Disclosure of Invention
The invention aims to provide a zero-arcing arc extinguish chamber structure capable of enhancing the arc elimination capacity aiming at the technical defects of high cost and difficult processing of a gas deionization device in the existing arc extinguish chamber of a circuit breaker, and the free gas elimination device provided with a W-shaped arc extinguishing sheet is additionally arranged above the traditional parallel arc extinguish plate group. When the high-current breaking is carried out, the free metal particles in a high ionization state generated by breaking can be effectively eliminated, the free ionized particles are prevented from flying out of the arc extinguish chamber, the damage of interphase short circuit is avoided, and the zero arcing of the high-current breaking is realized.
Technical scheme
In order to achieve the technical purpose, the invention designs a zero-arcing arc extinguish chamber structure capable of enhancing the capability of eliminating electric arcs, which comprises an arc extinguish chamber component and is characterized in that: an arc extinguishing chamber upper cover component is arranged on the arc extinguishing chamber component, and an arc extinguishing chamber filter screen component is arranged at the joint of the arc extinguishing chamber component and the arc extinguishing chamber upper cover component;
the arc extinguish chamber upper cover assembly comprises an arc extinguish chamber upper cover, a front support and a rear support are respectively arranged on the front side and the rear side of an inner cavity of the arc extinguish chamber upper cover, two ends of a left upper baffle and a left lower baffle are respectively arranged on the front support and the rear support, two ends of a right lower baffle are arranged on the front support and the rear support, and a plurality of arc extinguishing sheets are arranged on the front support and the rear support between the left lower baffle and the right lower baffle;
the arc-extinguishing sheets are w-shaped, the w-shaped arc-extinguishing sheets are arranged in a side-by-side transverse stacking mode, and two ends of the w-shaped arc-extinguishing sheets are arranged on the front support 201a and the rear support;
the arc extinguishing pieces are positioned above the parallel arc extinguishing plate groups in the arc extinguishing chamber assembly.
Further, the arc extinguishing piece is a metal sheet.
Further, the front support and the rear support are made of nonmetal.
Further, explosion chamber filter screen subassembly includes the filter screen, fills up frame and filter screen down, goes up the filter screen, fills up the frame and overlaps in proper order with filter screen down and be in the same place.
Advantageous effects
The invention provides a zero-arcing arc extinguish chamber structure capable of enhancing the capability of eliminating electric arcs, which is characterized in that a dissociation eliminating gas device provided with a W-shaped arc extinguishing sheet is additionally arranged above a traditional parallel arc extinguish plate group. When the high-current breaking is carried out, the free metal particles in a high ionization state generated by breaking can be effectively eliminated, the free ionized particles are prevented from flying out of the arc extinguish chamber, the damage of interphase short circuit is avoided, and the zero arcing of the high-current breaking is realized.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Figure 3 is a schematic view of an arc extinguishing piece mounting structure in the embodiment of the invention.
Figure 4 is a schematic structural diagram of an arc extinguishing sheet in the embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Examples
As shown in the attached figures 1-4, a zero arcing arc-extinguishing chamber structure with enhanced arc-eliminating capability comprises an arc-extinguishing chamber component 1 and is characterized in that: an arc extinguishing chamber upper cover component 2 is arranged on the arc extinguishing chamber component 1, and an arc extinguishing chamber filter screen component 3 is arranged at the joint of the arc extinguishing chamber component 1 and the arc extinguishing chamber upper cover component 2;
the arc extinguish chamber upper cover assembly 2 comprises an arc extinguish chamber upper cover 201, a front support 201a and a rear support 201b are respectively arranged on the front side and the rear side of an inner cavity of the arc extinguish chamber upper cover 201, two ends of a left upper baffle 202 and a left lower baffle 203 are respectively arranged on the front support 201a and the rear support 201b, two ends of a right lower baffle 204 are arranged on the front support 201a and the rear support 201b, and a plurality of arc extinguishing sheets 205 are arranged on the front support 201a and the rear support 201b between the left lower baffle 203 and the right lower baffle 204;
The arc extinguishing plate 205 is a metal plate.
The front bracket 201a and the rear bracket 201b are made of nonmetal.
The arc extinguish chamber filter screen assembly 3 comprises an upper filter screen 301, a cushion frame 302, a lower filter screen 303, the upper filter screen 301, the cushion frame 302 and the lower filter screen 303 which are sequentially stacked together.
When the electric arc generated by the moving and static contacts of the circuit breaker in the breaking process melts the surfaces of the contacts to form free metal ions, the metal ions and heated air from the periphery of the electric arc generate arc extinguishing gas clouds, the volume of the arc extinguishing gas clouds is enlarged by heating, when the pressure of the cavity in the circuit breaker is increased, the electric arc gas enters the arc extinguishing component of the arc extinguishing chamber to cool and extinguish the arc, but because the pressure of the electric arc gas is overlarge, part of the free high-temperature metal ions pass through the grid plate along with high-pressure gas to reach the upper cover component of the arc extinguishing chamber, the high-temperature metal ions firstly pass through the filter screen component of the arc extinguishing chamber made of insulating materials, the filter screen component plays a role of blocking and filtering the high-temperature metal ions at the initial stage, then the metal ions enter the W-shaped arc extinguishing plate made of magnetic conductive metal materials, and, the metal ions can only pass through the W-shaped arc extinguishing piece channels formed by arrangement, so that the high-temperature metal ions in the free state can be adsorbed on the W-shaped arc extinguishing pieces made of magnetic conductive materials in the advancing process, meanwhile, the structure of the W-shaped arc extinguishing pieces increases the passing stroke of the metal ions, so that the metal ions can be cooled at an accelerated speed, and finally the metal ions in the free state are completely absorbed in the arc extinguishing chamber, so that the circuit breaker achieves real zero arcing.
The invention provides a zero-arcing arc extinguish chamber structure capable of enhancing the capability of eliminating electric arcs, which is characterized in that a dissociation eliminating gas device provided with a W-shaped arc extinguishing sheet is additionally arranged above a traditional parallel arc extinguish plate group. When the high-current breaking is carried out, the free metal particles in a high ionization state generated by breaking can be effectively eliminated, the free ionized particles are prevented from flying out of the arc extinguish chamber, the damage of interphase short circuit is avoided, and the zero arcing of the high-current breaking is realized.
The structure, ratio, size and the like shown in the drawings of the present embodiment are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the limit conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the function and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right", "middle", "clockwise" and "counterclockwise" used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not limited by the technical contents of the substantial changes, but also considered to be the scope of the present invention.
Claims (4)
1. The utility model provides a zero arcing explosion chamber structure of reinforcing elimination electric arc ability, it includes explosion chamber subassembly (1), its characterized in that: an arc extinguishing chamber upper cover component (2) is arranged on the arc extinguishing chamber component (1), and an arc extinguishing chamber filter screen component (3) is arranged at the joint of the arc extinguishing chamber component (1) and the arc extinguishing chamber upper cover component (2);
the arc extinguish chamber upper cover assembly (2) comprises an arc extinguish chamber upper cover (201), a front support (201a) and a rear support (201b) are respectively arranged on the front side and the rear side of an inner cavity of the arc extinguish chamber upper cover (201), two ends of a left upper baffle (202) and a left lower baffle (203) are respectively arranged on the front support (201a) and the rear support (201b), two ends of a right lower baffle (204) are arranged on the front support (201a) and the rear support (201b), and a plurality of arc extinguishing pieces (205) are arranged on the front support (201a) and the rear support (201b) and positioned between the left lower baffle (203) and the right lower baffle (204);
the arc-extinguishing sheets (205) are w-shaped, the w-shaped arc-extinguishing sheets (205) are arranged in a side-by-side and transverse stacking mode, and two ends of each w-shaped arc-extinguishing sheet are arranged on the front support (201a) and the rear support (201 b);
the arc extinguishing plates (205) are positioned above the parallel arc extinguishing plate groups (101) in the arc extinguishing chamber assembly (1).
2. The zero-arcing arc chute structure with enhanced arc extinguishing capability of claim 1, wherein: the arc extinguishing piece (205) is a metal sheet.
3. The zero-arcing arc chute structure with enhanced arc extinguishing capability of claim 1, wherein: the front support (201a) and the rear support (201b) are made of nonmetal.
4. The zero-arcing arc chute structure with enhanced arc extinguishing capability of claim 1, wherein: explosion chamber filter screen subassembly (3) are including last filter screen (301), fill up frame (302) and filter screen (303) down, go up filter screen (301), fill up frame (302) and filter screen (303) superpose together in proper order down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698333.5A CN107768158B (en) | 2016-08-22 | 2016-08-22 | Zero-arcing arc extinguish chamber structure capable of enhancing electric arc elimination capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698333.5A CN107768158B (en) | 2016-08-22 | 2016-08-22 | Zero-arcing arc extinguish chamber structure capable of enhancing electric arc elimination capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107768158A CN107768158A (en) | 2018-03-06 |
| CN107768158B true CN107768158B (en) | 2020-02-21 |
Family
ID=61262741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610698333.5A Active CN107768158B (en) | 2016-08-22 | 2016-08-22 | Zero-arcing arc extinguish chamber structure capable of enhancing electric arc elimination capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107768158B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994349A (en) * | 2019-04-04 | 2019-07-09 | 华通机电股份有限公司 | Arc-chutes |
| CN112151338B (en) * | 2020-09-04 | 2022-07-12 | 北京双杰电气股份有限公司 | Arc extinguishing device of molded case circuit breaker and molded case circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076204U (en) * | 2011-04-02 | 2011-12-14 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing chamber of circuit breaker |
| CN103187191A (en) * | 2011-12-27 | 2013-07-03 | 施耐德电器工业公司 | Arc extinguishing chamber for air circuit breaker and arc extinguishing method of arc extinguishing chamber |
| CN203434109U (en) * | 2013-09-18 | 2014-02-12 | 浙江天正电气股份有限公司 | Miniature circuit breaker and arc-extinguishing device thereof |
| CN206040476U (en) * | 2016-08-22 | 2017-03-22 | 上海良信电器股份有限公司 | Fragmentary arcing explosion chamber structure of electric arc ability is eliminated in reinforcing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241920Y (en) * | 1995-04-19 | 1996-12-04 | 机械工业部上海电器科学研究所 | Arc-suppressing apparatus for plastic-shell breaker |
| JP6234872B2 (en) * | 2014-04-09 | 2017-11-22 | 株式会社日立産機システム | Circuit breaker |
-
2016
- 2016-08-22 CN CN201610698333.5A patent/CN107768158B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076204U (en) * | 2011-04-02 | 2011-12-14 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing chamber of circuit breaker |
| CN103187191A (en) * | 2011-12-27 | 2013-07-03 | 施耐德电器工业公司 | Arc extinguishing chamber for air circuit breaker and arc extinguishing method of arc extinguishing chamber |
| CN203434109U (en) * | 2013-09-18 | 2014-02-12 | 浙江天正电气股份有限公司 | Miniature circuit breaker and arc-extinguishing device thereof |
| CN206040476U (en) * | 2016-08-22 | 2017-03-22 | 上海良信电器股份有限公司 | Fragmentary arcing explosion chamber structure of electric arc ability is eliminated in reinforcing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107768158A (en) | 2018-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201540838U (en) | Electrical switch device as well as electric arc baffle component and electric arc cover component thereof | |
| CN206363921U (en) | The contact arc extinguishing device of breaker | |
| US10522310B2 (en) | Extinguishing gas filtering device and electric current switchgear comprising such a filtering device | |
| CN201845730U (en) | Arc-extinguishing chamber of universal circuit breaker | |
| CN107768158B (en) | Zero-arcing arc extinguish chamber structure capable of enhancing electric arc elimination capacity | |
| WO2013127084A1 (en) | Vacuum arc-extinguishing chamber with fixed fracture | |
| KR20080062942A (en) | Arc-suppression appratus of circuit breaker | |
| CN104779129B (en) | A kind of double-deck pole is coupled the breaker of structure | |
| CN105185649A (en) | Indoor high-voltage load switch device and method for turning off load current | |
| US1819207A (en) | Circuit breaker | |
| CN209823272U (en) | AC low-voltage draw-out type switch cabinet with arc extinguishing gas device arranged at top | |
| CN206040476U (en) | Fragmentary arcing explosion chamber structure of electric arc ability is eliminated in reinforcing | |
| CN208240604U (en) | Arc extinguishing outlet passageway and breaker | |
| CN206003731U (en) | A kind of zero arcing arc quenching chamber structure | |
| CN100514526C (en) | Movable contact of low-voltage circuit breaker | |
| CN115662856A (en) | Arc extinguishing chamber and circuit breaker with arc extinguishing chamber | |
| CN207664014U (en) | Arc-extinguishing chamber of circuit breaker structure-improved | |
| US8912461B2 (en) | Arc chute assembly and method of manufacturing same | |
| CN202018937U (en) | Universal circuit breaker arc-extinguishing chamber capable of quickly extinguishing arc | |
| CN207353122U (en) | Low-voltage circuit breaker | |
| CN206134588U (en) | Fixed VS1 circuit breaker | |
| CN213635880U (en) | Arc extinguishing device of low-voltage circuit breaker | |
| CN212434567U (en) | Arc extinguishing chamber for low-voltage circuit breaker | |
| CN212182256U (en) | Circuit breaker | |
| CN220272408U (en) | Plastic shell type circuit breaker with high-capacity arc extinguishing chamber |
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 |