CN203950736U - A kind of low current arc quenching chamber structure for air circuit - Google Patents
A kind of low current arc quenching chamber structure for air circuit Download PDFInfo
- Publication number
- CN203950736U CN203950736U CN201420371021.XU CN201420371021U CN203950736U CN 203950736 U CN203950736 U CN 203950736U CN 201420371021 U CN201420371021 U CN 201420371021U CN 203950736 U CN203950736 U CN 203950736U
- Authority
- CN
- China
- Prior art keywords
- arc
- extinguishing grid
- grid pieces
- arc extinguishing
- striking piece
- 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.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a kind of low current arc quenching chamber structure for air circuit, comprise a pair of arc extinguishing grid pieces pedestal, between described arc extinguishing grid pieces pedestal, rabbet polylith and be the arc extinguishing grid pieces being arranged side by side, at least in a side of an arc extinguishing grid pieces, also arrange arc striking piece, described arc striking piece is also embedded between a pair of arc extinguishing grid pieces pedestal, on the top of described arc extinguishing grid pieces, be also disposed in order polyester felt and multi-disc stainless steel cloth filter disc, top cover is by dormant bolt and nut fixedly on arc extinguishing grid pieces pedestal; Affixed supercharging arc striking piece on each arc extinguishing grid pieces pedestal.The utility model is simple in structure, easy for installation, by rivet supercharging arc striking piece on arc extinguishing grid pieces pedestal, by leading under the acting in conjunction of arc sheet and supercharging arc striking piece, make electric arc enter fast in arcing chamber, utilize supercharging arc striking piece to dwindle arc motion space, greatly improve the arc extinction performance of air circuit, improved the useful life of arc extinguishing grid pieces.
Description
Technical field
The utility model relates to arc control device, relate in particular to a kind of for air circuit low current arc quenching chamber structure.
Background technology
Air circuit is for connecting with breaking current and circuit and equipment being provided the overcurrent in the situation that a kind of low-voltage electrical apparatus of protection, arc control device are very important parts for air circuit, bear its arc-suppression function when disjunction short circuit current, wind-powered electricity generation industry has higher requirement to the frequent switching of air circuit at present, each low current electric arc producing that disconnects can not extinguish completely in the arc control device situation downforce deficiency of existing structure, after working long hours, cause the arc extinguishing grid pieces scaling loss in arc control device serious, to producing serious influence in the useful life of air circuit moving contact and base housing insulating properties.
Utility model content
The applicant, for above-mentioned existing issue, is studied improvement, provide a kind of for air circuit low current arc quenching chamber structure, by dwindling arc motion space, promote the arc voltage in arcing chamber, electric arc is extinguished completely.
The technical scheme that the utility model adopts is as follows:
A kind of for air circuit low current arc quenching chamber structure, comprise a pair of arc extinguishing grid pieces pedestal, between described arc extinguishing grid pieces pedestal, rabbet polylith and be the arc extinguishing grid pieces being arranged side by side, at least in a side of an arc extinguishing grid pieces, also arrange arc striking piece, described arc striking piece is also embedded between a pair of arc extinguishing grid pieces pedestal, on the top of described arc extinguishing grid pieces, be also disposed in order polyester felt and multi-disc stainless steel cloth filter disc, top cover is by dormant bolt and nut fixedly on arc extinguishing grid pieces pedestal; Affixed supercharging arc striking piece on each arc extinguishing grid pieces pedestal.
Its further technical scheme is:
One end bending of described supercharging arc striking piece, make to form bending angle α between the two ends of described supercharging arc striking piece, the angular range of described bending angle α is 135 °～150 °.
The beneficial effects of the utility model are as follows:
The utility model is simple in structure, easy for installation, by rivet supercharging arc striking piece on arc extinguishing grid pieces pedestal, by leading under the acting in conjunction of arc sheet and supercharging arc striking piece, make electric arc enter fast in arcing chamber, utilize supercharging arc striking piece to dwindle arc motion space, simultaneously by add melamine on supercharging arc striking piece, thereby make melamine at high temperature decompose the more gas of generation, increased the pressure in arcing chamber, the strong square hole that passes through top cover of electric arc is ejected, guaranteed that arc voltage passes through top cover completely, greatly improved the arc extinction performance of air circuit, improved the useful life of arc extinguishing grid pieces.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of supercharging arc striking piece in the utility model.
Wherein: 1, arc extinguishing grid pieces pedestal; 101, rivet installing hole; 102, the first mounting groove; 103, the second mounting groove; 2, nut; 3, supercharging arc striking piece; 4, rivet; 5, arc extinguishing grid pieces; 6, lead arc sheet; 7, polyester felt; 8, stainless steel cloth filter disc; 9, top cover; 10, dormant bolt.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, a kind of low current arc quenching chamber structure for air circuit, comprise a pair of arc extinguishing grid pieces pedestal 1, two arc extinguishing grid pieces pedestals 1 connect each other, between two arc extinguishing grid pieces pedestals 1, form arcing chamber, between arc extinguishing grid pieces pedestal 1, rabbet polylith and be the arc extinguishing grid pieces 5 being arranged side by side, at least in a side of an arc extinguishing grid pieces 5, also arrange and lead arc sheet 6, the two ends of leading arc sheet 6 are all embedded in the first mounting groove 102 on a pair of arc extinguishing grid pieces pedestal 1, on the top of arc extinguishing grid pieces 5, be also disposed in order polyester felt 7 and multi-disc stainless steel cloth filter disc 8, top cover 9 is fixed on the second mounting groove 103 that a pair of arc extinguishing grid pieces pedestal 1 is connected to form by dormant bolt 10 and nut 2, at each arc extinguishing grid pieces pedestal 1, also have rivet installing hole 101, supercharging arc striking piece 3 is fixed on arc extinguishing grid pieces pedestal 1 by rivet 4, has the installing hole (figure does not mark) for running through rivet 4 on supercharging arc striking piece 3.As shown in Figure 2, one end bending of supercharging arc striking piece 3, makes to form bending angle α between the two ends of described supercharging arc striking piece 3, and the angular range of bending angle α is 135 °～150 °, supercharging arc striking piece 3 adopts BMC material to make, and also adds melamine material simultaneously on supercharging arc striking piece 3.
Specific works process of the present utility model is as follows:
When air circuit disjunction is tested, by arrange supercharging arc striking piece 3 on arc extinguishing grid pieces pedestal 1, supercharging arc striking piece 3 is with bending angle α, avoid interfering with the bottom of arc extinguishing grid pieces pedestal 1, thereby maximize the pressure increasing in arcing chamber, in addition owing to adding melamine material on supercharging arc striking piece 3, make melamine at high temperature decompose the more gas of generation, being convenient to arc control device internal pressure rises, the metal ionized gas of the HTHP being produced by electric arc enters two-layer stainless steel cloth filter disc 8 after polyester felt 7, finally in the square hole of top cover 9, run out of, the ionized gas filtration that is cooled during by stainless steel cloth filter disc 8, make final from top cover 9 effluent air become the not gas of containing metal steam, realized zero arcing.
More than describing is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection range of the present utility model, can be done any type of modification.
Claims (2)
1. the low current arc quenching chamber structure for air circuit, it is characterized in that: comprise a pair of arc extinguishing grid pieces pedestal (1), between described arc extinguishing grid pieces pedestal (1), rabbet polylith and be the arc extinguishing grid pieces (5) being arranged side by side, at least in a side of an arc extinguishing grid pieces (5), also arrange arc striking piece (6), described arc striking piece (6) is also embedded between a pair of arc extinguishing grid pieces pedestal (1), on the top of described arc extinguishing grid pieces (5), be also disposed in order polyester felt (7) and multi-disc stainless steel cloth filter disc (8), top cover (9) is by dormant bolt (10) and nut (2) fixedly on arc extinguishing grid pieces pedestal (1), at the upper affixed supercharging arc striking piece (3) of each arc extinguishing grid pieces pedestal (1).
2. a kind of low current arc quenching chamber structure for air circuit as claimed in claim 1, it is characterized in that: the bending of one end of described supercharging arc striking piece (3), make to form bending angle α between the two ends of described supercharging arc striking piece (3), the angular range of described bending angle α is 135 °～150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371021.XU CN203950736U (en) | 2014-07-07 | 2014-07-07 | A kind of low current arc quenching chamber structure for air circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371021.XU CN203950736U (en) | 2014-07-07 | 2014-07-07 | A kind of low current arc quenching chamber structure for air circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203950736U true CN203950736U (en) | 2014-11-19 |
Family
ID=51892758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420371021.XU Expired - Fee Related CN203950736U (en) | 2014-07-07 | 2014-07-07 | A kind of low current arc quenching chamber structure for air circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203950736U (en) |
-
2014
- 2014-07-07 CN CN201420371021.XU patent/CN203950736U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214028 102-A block, national hi tech Industrial Development Zone, Wuxi, Jiangsu Patentee after: Lexing electric (Wuxi) Co.,Ltd. Address before: 214028 102-A block, national hi tech Industrial Development Zone, Wuxi, Jiangsu Patentee before: LS INDUSTRIAL SYSTEMS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20210707 |