CN200953432Y - Voltage switch type surge protector - Google Patents
Voltage switch type surge protector Download PDFInfo
- Publication number
- CN200953432Y CN200953432Y CN 200620046563 CN200620046563U CN200953432Y CN 200953432 Y CN200953432 Y CN 200953432Y CN 200620046563 CN200620046563 CN 200620046563 CN 200620046563 U CN200620046563 U CN 200620046563U CN 200953432 Y CN200953432 Y CN 200953432Y
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- arc
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- voltage switching
- switching type
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Abstract
The utility model discloses a voltage switch type surge protector which comprises a cover, a base, an arc extinguishing chamber, two wire connecting terminals and two electrodes; wherein an encloser is arranged between the cover and the base, the arc extinguishing chamber is arranged in the encloser which is symmetrically provided with two striking arc angles, the lower end of the striking arc angle stretches to the arc extinguishing chamber, the upper ends of the two striking arc angles are respectively connected with the two wire connecting terminals, the two electrodes are respectively fixed on the opposite surface of the two striking arc angles and connected with the striking arc angle, and a discharge gap is formed between the two electrodes. The utility model directly arranges the discharge electrode on the two striking arc angles, the striking arc angle can introduce the electric arc into the arch extinguishing chamber, which increases the arc extinguishing effect and thereby can effectively cut off the power frequency follow current after the electric surge. Especially the electrode is arranged on a stud, which realizes the adjustability of the discharge gap in order to meet the different discharge voltages.
Description
Technical field
The utility model relates to a kind of surge protector that is applied in the low-voltage distribution system lightning protection, can be used for 1 grade or 2 grades of lightning protection.
Background technology
All can produce surge owing to thunderbolt or reason such as switching manipulation in the electrical network, if it is the energy of surge can't bleed off, very harmful to power consumption equipment.And surge protector can absorb surge energy, for surge provides the bleed off passage, to play the effect of protection equipment.Surge protector in the market utilizes devices such as gas discharge tube, piezo-resistance, silicon transient voltage absorption diode to make.The air gap voltage switching type spd is directly based on the air gap.When because of thunderbolt or switching manipulation generation surge, the air gap is breakdown, thereby for surge provides the bleed off passage, realizes the protection to equipment.Because the type surge protector is after surge, under power-frequency voltage, have afterflow, so timely arc extinguishing and cut off afterflow and seem very important.The air gap distance majority of this type of surge protector is controlled by the insulating material of centre in the market, and insulating material easy breakdown carbonization under high voltage, and make damage of product.
The utility model content
The technical problems to be solved in the utility model provides a kind of strong air gap voltage switching type spd of afterflow ability that cuts off.
In order to solve the problems of the technologies described above; the utility model adopts following technical scheme: a kind of voltage switching type spd; comprise lid; base; arc control device; two binding posts and two electrodes; in the lid and bottom seat, also be provided with a case; described arc control device are positioned at case; two arc leading angles also are installed in the case symmetrically; the lower end of described arc leading angle extends in the arc control device; the upper end of two arc leading angles is electrically connected with two binding posts respectively; described two electrodes are separately fixed on the opposite face of two arc leading angles and with arc leading angle and are electrically connected, and form discharging gap between two electrodes.
The utility model is directly installed on sparking electrode on two arc leading angles, and arc leading angle can be guided electric arc into arc control device, has strengthened arc quenching effect, thereby can cut off surge power frequency continued flow later effectively.
As a kind of preferred version of technique scheme, described arc leading angle is provided with tapped through hole, is screwed with double-screw bolt in the described tapped through hole, and described electrode is fixed on the end of double-screw bolt.Rotate double-screw bolt and just can regulate the size of discharging gap between two electrodes, thereby make discharging gap adjustable, to adapt to different puncture voltages.This structure has overcome the defective of regulating gap length in the prior art by interelectrode insulating material, has improved reliability of products and useful life.Need not change parts, processing technology is simple, and cost is low.
In the above-mentioned preferred version, a side relative with electrode on the double-screw bolt is screwed with nut.Nut can play the tightening effect to double-screw bolt, prevents that discharging gap from unartificial variation taking place.
In the technique scheme, be provided with longitudinal groove in the case, the arc extinguishing grid pieces of described arc control device directly is inserted in this longitudinal groove.Can good arc quenching effect be arranged again so that compact conformation, technology are simple like this.
In the technique scheme, described electrode is made by copper-tungsten.Make full use of the high-melting-point characteristics of material, improved the performance of electrode.
In the technique scheme, the bottom of described case is provided with an arc blow-out groove.When breakdown, the air in the groove sharply expands in the air gap, electric arc is blown the enhancing arc quenching effect toward arc control device in.
In the technique scheme, base is provided with arc spraying mouth.When can be in the air gap breakdown, reduce the pressure that housing sharply expands and is subjected to because of air.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the cutaway view of the utility model surge protector.
Fig. 2 is the annexation schematic diagram of electrode and arc leading angle.
Fig. 3 is each assembled stereogram together in the base.
Fig. 4 is that assembly shown in Figure 3 removes a schematic diagram of observing from the bottom behind the arc extinguishing grid pieces.
Fig. 5 is the position view of arc blow-out groove on the case.
Fig. 6 is the schematic diagram of arc spraying mouth on the base.
Embodiment
Shown in Figure 1 is a kind of voltage switching type spd of the present utility model; lid 1, base 10 constitute shell; also be provided with a case 2 in the enclosure; the latter half of case 2 is equipped with arc control device 9; in order to reach compact conformation, the simple effect of technology; be provided with longitudinal groove 21 in the case 2, as shown in Figure 4, arc extinguishing grid pieces directly is inserted in this longitudinal groove 21 and forms arc control device 9.Two arc leading angles 4 also are installed in the case 2 symmetrically, the lower end of arc leading angle 4 extends in the arc control device 9, the upper end of two arc leading angles 4 is electrically connected with two binding posts 7 by joint cover 6 respectively, the opposite face at the middle part of two arc leading angles 4 is provided with tapped through hole, double-screw bolt 5 is screwed in the tapped through hole, each is fixed a copper-tungsten and makes electrode 3 on the end face of the end that two double-screw bolts 5 are relative, and electrode 3 forms by double-screw bolt 5, arc leading angle 4, joint cover 6 and binding post 7 successively and is electrically connected like this.Form discharging gap between two electrodes 3, rotate double-screw bolt 5 and just can regulate the size of discharging gap between two electrodes 3, thereby make discharging gap adjustable, to adapt to different puncture voltages.In order to prevent owing to reasons such as vibration cause double-screw bolt 5 loosening, thereby make two discharging gaps between the electrode 3 that unartificial variation take place, a side relative with electrode 3 on double-screw bolt 5 is screwed with nut 8, as shown in Figure 2.Nut 8 can play the tightening effect to double-screw bolt 5, prevents the discharging gap variation that meets accident.
In order to strengthen arc quenching effect, the bottom of case 2 also is provided with an arc blow-out groove 22.When breakdown, the air in the arc blow-out groove sharply expands in the air gap, and electric arc is blown for 9 li toward arc control device, reaches the effect of quick arc extinguishing.Simultaneously, also be provided with arc spraying mouth 101 on base 10, when breakdown, arc spraying mouth can reduce the pressure that shell sharply expands and is subjected to because of air in the air gap.
The utility model is directly installed on sparking electrode on two arc leading angles, and arc leading angle can be guided electric arc into arc control device, has strengthened arc quenching effect, thereby can cut off surge power frequency continued flow later effectively.Particularly electrode is installed on the double-screw bolt, has realized the adjustable of discharging gap, so that satisfy different discharge voltages.
Claims (7)
1. voltage switching type spd; comprise lid (1); base (10); arc control device (9); two binding posts (7) and two electrodes (3); it is characterized in that: in lid (1) and base (10), also be provided with a case (2); described arc control device (9) are positioned at case (2); two arc leading angles (4) also are installed in the case (2) symmetrically; the lower end of described arc leading angle (4) extends in the arc control device (9); the upper end of two arc leading angles (4) is electrically connected with two binding posts (7) respectively; described two electrodes (3) are separately fixed on the opposite face of two arc leading angles (4) and with arc leading angle (4) and are electrically connected, and form discharging gap between two electrodes (3).
2. voltage switching type spd according to claim 1 is characterized in that: described arc leading angle (4) is provided with tapped through hole, is screwed with double-screw bolt (5) in the described tapped through hole, and described electrode (3) is fixed on the end of double-screw bolt (5).
3. voltage switching type spd according to claim 2 is characterized in that: described double-screw bolt (5) is gone up a side relative with electrode (3) and is screwed with nut (8).
4. voltage switching type spd according to claim 1 and 2 is characterized in that: described electrode (3) is made by copper-tungsten.
5. voltage switching type spd according to claim 1 and 2 is characterized in that: be provided with longitudinal groove (21) in the described case (2), the arc extinguishing grid pieces of described arc control device (9) directly is inserted in this longitudinal groove (21).
6. voltage switching type spd according to claim 1 and 2 is characterized in that: the bottom of described case (2) is provided with an arc blow-out groove (22).
7. voltage switching type spd according to claim 1 and 2 is characterized in that: described base (10) is provided with arc spraying mouth (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046563 CN200953432Y (en) | 2006-09-30 | 2006-09-30 | Voltage switch type surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046563 CN200953432Y (en) | 2006-09-30 | 2006-09-30 | Voltage switch type surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953432Y true CN200953432Y (en) | 2007-09-26 |
Family
ID=38811733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620046563 Expired - Fee Related CN200953432Y (en) | 2006-09-30 | 2006-09-30 | Voltage switch type surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953432Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576625A (en) * | 2014-10-31 | 2016-05-11 | 株式会社山光社 | Surge protective system |
| CN107919661A (en) * | 2017-12-28 | 2018-04-17 | 浙江多格电气有限公司 | A kind of modular Surge Protector |
-
2006
- 2006-09-30 CN CN 200620046563 patent/CN200953432Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576625A (en) * | 2014-10-31 | 2016-05-11 | 株式会社山光社 | Surge protective system |
| CN105576625B (en) * | 2014-10-31 | 2018-10-12 | 株式会社山光社 | Surge protection system |
| CN107919661A (en) * | 2017-12-28 | 2018-04-17 | 浙江多格电气有限公司 | A kind of modular Surge Protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20091030 |