CN203553916U - Safety protection apparatus with function of automatic releasing for surge protection device in overheating state - Google Patents
Safety protection apparatus with function of automatic releasing for surge protection device in overheating state Download PDFInfo
- Publication number
- CN203553916U CN203553916U CN201320722617.5U CN201320722617U CN203553916U CN 203553916 U CN203553916 U CN 203553916U CN 201320722617 U CN201320722617 U CN 201320722617U CN 203553916 U CN203553916 U CN 203553916U
- Authority
- CN
- China
- Prior art keywords
- pin
- electrode
- varistor
- pressure
- valve block
- 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 - Lifetime
Links
- 238000013021 overheating Methods 0.000 title abstract 2
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000014987 copper Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 229960001296 zinc oxide Drugs 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Abstract
The utility model, which relates to a safety protection apparatus for a surge protection device, particularly discloses a safety protection apparatus with the function of automatic releasing for a surge protection device in an overheating state. The safety protection apparatus comprises a support (10), a pressure-sensitive valve block (20), and electrode pins (30). The pressure-sensitive valve block (20) and the electrode pins (30) are arranged at the support (10); a first electrode (21) of the pressure-sensitive valve block (20) is connected with a phase line by a first pin (31); and a second pin (22) of the pressure-sensitive valve block (20) is connected with a zero line by a second pin (32). A low-melting point welding material (40) and a metal spring plate (50) are arranged; and the first electrode (21) of the pressure-sensitive valve block (20), the welding material (40), the metal spring plate (50) and the first pin (31) and the phase line are successively connected. The provided safety protection apparatus has the advantages of simple structure, low cost, and good applicability and reliability; and the operation security and reliability of the surge protection device in the distribution system can be enhanced.
Description
Technical field
The utility model relates to a kind of safety guard of Surge Protector, relates in particular to the safety guard that a kind of Surge Protector is automatically threaded off under overheat condition.
Background technology
Distribution system is the invasion that prevents lightning current, and the Surge Protector (Surge protection Device is called for short SPD) that contains varistor is installed conventionally between transmission line and power consumption equipment.As Fig. 1, SPD comprises support 10, varistor 20 and electrode pin 30, on support 10, be provided with varistor 20 and electrode pin 30, the 1st electrode 21 of varistor 20 is connected with phase line by the 1st pin 31, and the 2nd electrode 22 of varistor 20 is connected with zero line by the 2nd pin 32.
Because SPD stands repeatedly after voltge surge, varistor 20 deterioration in characteristics; When normal work, be that leakage current constantly increases, cause the chip heating of varistor 20, thermal breakdown occurs, and cause power supply short circuit, cause accident of power supply.Conventional settling mode is varistor 20 serial connection insurances., when serial connection insurance capacity hour, but can not bear excessive voltge surge; When serial connection insurance capacity is large, insurance needs large electric current to fuse or constantly, equally easily causes power supply short circuit, forms accident of power supply.
Utility model content
The purpose of this utility model is just to overcome the shortcoming and defect that prior art exists, the safety guard that provides a kind of Surge Protector automatically to thread off under overheat condition.
The purpose of this utility model is achieved in that
The utility model comprises support, varistor and electrode pin, is provided with varistor and electrode pin on support, and the 1st electrode of varistor is connected with phase line by the 1st pin, and the 2nd electrode of varistor is connected with zero line by the 2nd pin;
Be provided with low melting point welding material and metal clips;
the 1st electrode of varistor, welding material, metal clips, the 1st pin are connected successively with phase line.
Working mechanism of the present utility model:
SPD is under lightning current or overvoltage are repeatedly impacted, varistor deterioration in characteristics, when normal work, be that leakage current constantly increases, cause the heating of varistor chip, heat conducts to low melting point welding material and micro-melting by the electrode of varistor, and connected metal clips automatically threads off with the electrode of varistor under the effect of self elastic force, thereby deteriorated varistor is departed from from circuit, avoid the generation of accident of power supply.
The utlity model has following advantages and good effect:
1. simple in structure, with low cost, applicable and reliable;
2. strengthened the safety and reliability that Surge Protector moves in distribution system.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing Surge Protector.
Fig. 2 is structural representation of the present utility model.
In figure:
10-support;
20-varistor, the 21-the 1 electrode, the 22-the 2 electrode;
30-electrode pin, the 31-the 1 pin, the 32-the 2 pin;
40-low melting point welding material;
50-metal clips.
Embodiment
Below in conjunction with drawings and Examples, describe in detail:
One, the structure of safety guard
1, overall
As Fig. 2, the utility model comprises support 10, varistor 20 and electrode pin 30, on support 10, be provided with varistor 20 and electrode pin 30, the 1st electrode 21 of varistor 20 is connected with phase line by the 1st pin 31, and the 2nd electrode 22 of varistor 20 is connected with zero line by the 2nd pin 32;
Be provided with low melting point welding material 40 and metal clips 50;
the 1st electrode 21 of varistor 20, welding material 40, metal clips 50, the 1st pin 31 are connected successively with phase line.
2, functional part
1) support 10
Play a supportive role.
2) varistor 20
Play lightning protection effect.
3) electrode pin 30
Play through-flow effect.
4) low melting point welding material 40
Low melting point welding material 40 is a kind of fusing points at the alloy material of 80～180 ℃, by buying on market;
Play welding and dropout effect.
5) metal clips 50
Metal clips 50 is a kind of metal material beryllium coppers, necessary heat treatment and Ageing Treatment after moulding;
Play through-flow and dropout effect.
Two, using method
1. an electrode of varistor 20 is firmly welded by low melting point welding material 40 and one end of metal clips 50, the other end of metal clips 50 is connected with phase line by electrode pin 30; Another electrode of varistor 20 is connected with zero line by electrode pin 30, can put into operation;
While 2. moving, if SPD is under lightning current or overvoltage are repeatedly impacted, varistor deterioration in characteristics, threads off the electrode of metal clips and varistor automatically, avoids the generation of accident of power supply;
3. the varistor more renewing.
Three, result of the test
1, heat stabilization test: meet TB/T 2311-2008.
Claims (3)
1. the safety guard that Surge Protector is automatically threaded off under overheat condition,
Comprise support (10), varistor (20) and electrode pin (30), on support (10), be provided with varistor (20) and electrode pin (30), the 1st electrode (21) of varistor (20) is connected with phase line by the 1st pin (31), and the 2nd electrode (22) of varistor (20) is connected with zero line by the 2nd pin (32);
It is characterized in that:
Be provided with low melting point welding material (40) and metal clips (50);
the 1st electrode (21) of varistor (20), welding material (40), metal clips (50), the 1st pin (31) are connected successively with phase line.
2. by safety guard claimed in claim 1, it is characterized in that:
Described low melting point welding material (40) is a kind of fusing point at the alloy material of 80～180 ℃.
3. by safety guard claimed in claim 1, it is characterized in that:
Described metal clips (50) is a kind of fine flexible metal material beryllium copper that has.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320722617.5U CN203553916U (en) | 2013-11-15 | 2013-11-15 | Safety protection apparatus with function of automatic releasing for surge protection device in overheating state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320722617.5U CN203553916U (en) | 2013-11-15 | 2013-11-15 | Safety protection apparatus with function of automatic releasing for surge protection device in overheating state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553916U true CN203553916U (en) | 2014-04-16 |
Family
ID=50471985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320722617.5U Expired - Lifetime CN203553916U (en) | 2013-11-15 | 2013-11-15 | Safety protection apparatus with function of automatic releasing for surge protection device in overheating state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507744A (en) * | 2017-10-11 | 2017-12-22 | 成都兴业雷安电子有限公司 | A kind of surge protector |
| CN113690104A (en) * | 2021-08-26 | 2021-11-23 | 杭州易造科技有限公司 | Surge backup protection device |
-
2013
- 2013-11-15 CN CN201320722617.5U patent/CN203553916U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507744A (en) * | 2017-10-11 | 2017-12-22 | 成都兴业雷安电子有限公司 | A kind of surge protector |
| CN107507744B (en) * | 2017-10-11 | 2020-08-25 | 成都兴业雷安电子有限公司 | Surge protector |
| CN113690104A (en) * | 2021-08-26 | 2021-11-23 | 杭州易造科技有限公司 | Surge backup protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |