CN202260433U - High-reliability power supply surge protector - Google Patents
High-reliability power supply surge protector Download PDFInfo
- Publication number
- CN202260433U CN202260433U CN2011203682625U CN201120368262U CN202260433U CN 202260433 U CN202260433 U CN 202260433U CN 2011203682625 U CN2011203682625 U CN 2011203682625U CN 201120368262 U CN201120368262 U CN 201120368262U CN 202260433 U CN202260433 U CN 202260433U
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- CN
- China
- Prior art keywords
- surge protector
- power supply
- protector
- supply surge
- shell fragment
- 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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- Emergency Protection Circuit Devices (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model relates to a high-reliability power supply surge protector, comprising a spring piece, a binding post, a pressure-sensitive resistor, a housing and an upper cover, wherein the tail end of the spring piece is wrapped by an insulating protection sleeve, an interference fit is provided between the insulating protection sleeve and the spring piece, and the insulating protection sleeve is prepared by a high temperature resistant insulating material. The high-reliability power supply surge protector effectively resolves the problem of flashover, eliminates the hidden trouble of protector transient impact thereby enabling the reliability of the power supply surge protector to be increased, and is simple in structure and excellent in practical application effect.
Description
Technical field
The utility model relates to a kind of protector, and particularly highly reliable power source surge protector is used in electric power system.
Background technology
Existing power source surge protector all adopts the fabulous piezo-resistance of a kind of nonlinear characteristic.Under normal situation, Surge Protector is in high resistance states, and leakage current is almost nil, thereby guarantees the power-supply system normal power supply.When overvoltage surge appearred in power-supply system, power source surge protector is conducting in time nanosecond immediately, and superpotential amplitude limitation in the range of safety operation of equipment, is imported the earth with surge energy simultaneously and discharges.Subsequently, Surge Protector is threaded off rapidly again, returns to original high-impedance state, thereby does not influence the normal power supply of power-supply system.
But in the existing power system, when external drive was high pressure or heavy load, its transient excite impact meeting caused very big impact to the existing power supply Surge Protector.When power source surge protector has big electric current (thunder and lightning) to impact, arcing phenomena may take place between the shell fragment end of protector and the binding post, this will cause damage to protector itself and even whole system, even serious security incident can take place.
Summary of the invention
The deficiency that the utility model exists to prior art just provides a kind of highly reliable power source surge protector.The described highly reliable power source surge protector of the utility model comprises: shell fragment, binding post, piezo-resistance, housing and loam cake is characterized in that: the end of said shell fragment is set with insulating sheath.
Described insulating sheath and shell fragment interference fit.
Described insulating sheath is that high-temperature insulation material is processed.
The described highly reliable power source surge protector of the utility model compared with prior art, effectively solves the arcing problem, has eliminated the hidden danger of protector transient impact, has improved existing power supply Surge Protector reliability, and it is simple in structure, and practical effect is good.
Description of drawings
Fig. 1 is the described highly reliable power source surge protector internal structure sketch map of the utility model;
Fig. 2 is the described highly reliable power source surge protector superstructure sketch map of the utility model;
Fig. 3 is the elastic piece structure sketch map of the described highly reliable power source surge protector of the utility model;
Wherein:
1-shell fragment, 2-binding post, 3-piezo-resistance, 4-housing, 5-loam cake, 6-insulating sheath.
Embodiment
To combine concrete embodiment that the content of the utility model is described below.
As shown in Figure 1, be the described highly reliable power source surge protector internal structure sketch map of the utility model, Fig. 2 is a protector loam cake sketch map, Fig. 3 is the elastic piece structure sketch map of protector.The described highly reliable power source surge protector of the utility model comprises shell fragment 1, binding post 2, piezo-resistance 3, housing 4 and loam cake 5.Binding post 2 is used for being connected with external circuit, when external circuit has excitation, is switched to protector inside through binding post 2.Piezo-resistance 3 has fabulous nonlinear characteristic, and when external drive reached preset value, piezo-resistance 3 can produce signal, and shell fragment 1 is flicked.Housing 4 is used to hold shell fragment 1, binding post 2, piezo-resistance 3 and other parts.Loam cake 5 lids are contained on the housing 4, play protection and effect attractive in appearance, can set the relevant parameter of protector through the button of reserving on the loam cake 5.
When outside transient excite surpassed the scope of protector setting, voltage or electric current on the shell fragment 1 had exceeded set point, and shell fragment 1 easy and peripheral parts produced and discharged and arcing this moment, and especially the front end of shell fragment 1 is easy to generate arcing most.Therefore, the described highly reliable power source surge protector of the utility model is provided with insulating sheath 6 at the least significant end of shell fragment 1.Insulating sheath 6 is processed for high-temperature insulation material, and it is sleeved on the end of shell fragment 1 by force through interference fit.
The described highly reliable power source surge protector of the utility model compared with prior art, effectively solves the arcing problem, has eliminated the hidden danger of protector transient impact, has improved existing power supply Surge Protector reliability, and it is simple in structure, and practical effect is good.
Claims (2)
1. highly reliable power source surge protector, it comprises shell fragment (1), binding post (2), piezo-resistance (3), housing (4) and loam cake (5), it is characterized in that: the end of said shell fragment (1) is set with insulating sheath (6).
2. a kind of highly reliable power source surge protector as claimed in claim 1 is characterized in that: described insulating sheath (6) and shell fragment (1) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203682625U CN202260433U (en) | 2011-09-30 | 2011-09-30 | High-reliability power supply surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203682625U CN202260433U (en) | 2011-09-30 | 2011-09-30 | High-reliability power supply surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260433U true CN202260433U (en) | 2012-05-30 |
Family
ID=46121618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203682625U Expired - Fee Related CN202260433U (en) | 2011-09-30 | 2011-09-30 | High-reliability power supply surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260433U (en) |
-
2011
- 2011-09-30 CN CN2011203682625U patent/CN202260433U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |