CN201829285U - Packaging type surge-preventing protector - Google Patents
Packaging type surge-preventing protector Download PDFInfo
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- CN201829285U CN201829285U CN2010205840455U CN201020584045U CN201829285U CN 201829285 U CN201829285 U CN 201829285U CN 2010205840455 U CN2010205840455 U CN 2010205840455U CN 201020584045 U CN201020584045 U CN 201020584045U CN 201829285 U CN201829285 U CN 201829285U
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- resistance
- surge protector
- piezo
- surge
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Abstract
The common piezoresistive surge-preventing device generally packages a piezoresistor in a fixed shell, and is internally filled with epoxy resin or sealing glue, therefore, the structure is complex, the shell is easy to crack, and the potential safety hazards are easy to occur. The utility model provides a novel packaging type surge-preventing protector which comprises a piezoresistor; and the piezoresistor is externally packaged by ceramic. In the packaging type surge-preventing protector, the structure is small and exquisite, the insulation and the heat resistance are good, the use is safe and the application prospect is wide.
Description
Technical field
The utility model relates to a kind of anti-Surge Protector of encapsulation type, and especially a kind of piezo-resistance that adopts ceramic packaging belongs to anti-surge, shocking preventing technology field as the flame-proof explosion-proof device.
Background technology
Surge mainly refers to the strong pulse that moment breath that power supply just opened produces because the non-linear of circuit itself might have the pulse that is higher than power supply itself, perhaps since in power supply or the circuit other parts be subjected to or external spike interference own and be called surge.It makes circuit the burning out in a flash of surge probably, punctures as PN junction electric capacity, and resistance blows or the like, and surge protection utilizes the protective circuit of non-linear element to the sensitivity design of high frequency (surge) exactly.
Surge Protector also is lightning protection device, is a kind of electronic installation that security protection is provided for various electronic equipments, instrument and meter, communication line.When in electric loop or the communication line because extraneous interference is when producing peak current or voltage suddenly, Surge Protector can conducting shunting in the extremely short time, thereby avoids the infringement of surge to other equipment in the loop.
The type of Surge Protector is different by different purposes with structure, but it should comprise a non-linear voltage limiting element at least.The basic components and parts that are used for surge protector have: discharging gap, gas discharge tube, piezo-resistance, inhibition diode and choking-winding etc.
Gas discharge tube is encapsulated in by a pair of cold cloudy plate that leaves mutually to be formed in the glass tube that is filled with certain inert gas (Ar) or the earthenware.In order to improve the triggering probability of discharge tube, in discharge tube, also help the triggering agent, this gas-discharge tube has diarch, and triple-pole type is also arranged.
Piezo-resistance is to be the metal-oxide semiconductor (MOS) nonlinear resistance of main component with ZnO, and after the voltage that acts on its two ends reached certain numerical value, resistance was very responsive to voltage.Its operation principle is equivalent to the connection in series-parallel of a plurality of semiconductor P-N.The characteristics of piezo-resistance are nonlinear characteristic good (the non linear coefficient α among the I=CU α), discharge capacity big (～2KA/cm2), little (the 10-7～10-6A) of normality leakage current, residual voltage low (operating voltage and the discharge capacity that depend on piezo-resistance), to the instantaneous overvoltage response time fast (～10-8s), no afterflow.
By the operation principle branch, common Surge Protector is divided into: 1, switching mode: its operation principle is to be rendered as high impedance when do not have instantaneous overvoltage, but in case when responding the thunder and lightning instantaneous overvoltage, its impedance just sports low value, the permission lightning current passes through.During as this type of device there be device: discharging gap, gas discharge tube, thyristor etc.2. votage limit type: its operation principle is to be that height obstructs when not having instantaneous overvoltage, but constantly reduces with its impedance meeting of increase of surge current and voltage, and its current-voltage characteristic is for non-linear strongly.Device as this type of device has: zinc oxide, piezo-resistance, inhibition diode, avalanche diode etc.
The anti-surge device of common piezo-resistance class all is that piezo-resistance is encapsulated in the housing of fixing, and inside is filled with epoxy resin or fluid sealant, the anti-surge apparatus structure complexity of this structure, and housing breaks easily, causes potential safety hazard.
Summary of the invention
The utility model promptly is at the anti-surge device above shortcomings part of piezo-resistance class in the market, provides a kind of novel encapsulation type to prevent Surge Protector.
Specifically, a kind of encapsulation type described in the utility model is prevented Surge Protector, it is characterized in that: described anti-Surge Protector comprises piezo-resistance, and the piezo-resistance outside is by ceramic packaging.
Described a kind of encapsulation type is prevented Surge Protector, it is characterized in that: have the hole that the quick resistance pin of voltage supply passes in the bottom of described anti-Surge Protector ceramic packaging.
Described a kind of encapsulation type is prevented Surge Protector, it is characterized in that: described piezo-resistance comprises the piezo-resistance of protection voltage range at 18V～1800V.
Described a kind of encapsulation type is prevented Surge Protector, it is characterized in that: the profile of described anti-Surge Protector comprises square, circular or oval.
Described a kind of encapsulation type is prevented Surge Protector, has following advantage:
1, simple in structure, the function practicality;
2, volume is small and exquisite, is convenient to install;
3, adopt ceramic packaging, the insulation heat resistance of material is good, compares with traditional housing encapsulating structure, and encapsulating structure is cracky not.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the anti-Surge Protector of a kind of encapsulation type described in the utility model;
Fig. 2 is the generalized section of another embodiment of the anti-Surge Protector of a kind of encapsulation type described in the utility model;
Wherein, 1 is that piezo-resistance, 2 is that pottery, 3 is pin.
Embodiment
Below in conjunction with accompanying drawing the anti-Surge Protector of a kind of encapsulation type described in the utility model is described; purpose is better to understand technology contents described in the utility model for the public; rather than to the restriction of described technology contents; in fact; in invention spirit described in the utility model, any increase and decrease, change and the replacement of carrying out is all within the utility model technical scheme required for protection.
A kind of encapsulation type described in the utility model is prevented Surge Protector; comprise piezo-resistance 1; piezo-resistance 1 outside is by pottery 2 encapsulation; especially adopt pottery mud to encapsulate; the good insulation thermal endurance is arranged; be difficult for taking place the electric leakage accident; have the hole that the quick resistance pin 3 of voltage supply passes in the bottom of described anti-Surge Protector ceramic packaging; here; described piezo-resistance comprises the piezo-resistance of disposable type and manufacturer production; comprise the scope of protecting voltage at 18V～1800V, the profile of described anti-Surge Protector comprises square (as shown in Figure 1); circle or oval (as shown in Figure 2).
Described piezo-resistance (specification is from 5 ф-53 ф (use), and voltage offers the needs of all trades and professions from the complete series finished product of 18V-1800V by 5D, 7D, 10D, 14D, 18D, 20D, 25D, 32D, 40D, 53D, 34S, 34B, professional lightning protection; Anti-burst current maximum can reach 70KA energy (joule value) maximum can reach 2500 joules.
The anti-Surge Protector structure of a kind of encapsulation type described in the utility model is small and exquisite, and the insulation good heat resistance is safe in utilization, has broad application prospects.
Claims (4)
1. an encapsulation type is prevented Surge Protector, and it is characterized in that: described anti-Surge Protector comprises piezo-resistance, and the piezo-resistance outside is by ceramic packaging.
2. encapsulation type according to claim 1 is prevented Surge Protector, it is characterized in that: have the hole that the quick resistance pin of voltage supply passes in the bottom of described anti-Surge Protector ceramic packaging.
3. encapsulation type according to claim 1 is prevented Surge Protector, it is characterized in that: described piezo-resistance comprises the piezo-resistance of protection voltage range at 18V～1800V.
4. a kind of encapsulation type according to claim 1 is prevented Surge Protector, it is characterized in that: the profile of described anti-Surge Protector comprises square, circular or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205840455U CN201829285U (en) | 2010-10-29 | 2010-10-29 | Packaging type surge-preventing protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205840455U CN201829285U (en) | 2010-10-29 | 2010-10-29 | Packaging type surge-preventing protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829285U true CN201829285U (en) | 2011-05-11 |
Family
ID=43967806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205840455U Expired - Lifetime CN201829285U (en) | 2010-10-29 | 2010-10-29 | Packaging type surge-preventing protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863363A (en) * | 2020-06-03 | 2020-10-30 | 中科立民新材料（扬州）有限公司 | Packaging method of high-temperature thermistor, packaged resistor and application of packaged resistor |
-
2010
- 2010-10-29 CN CN2010205840455U patent/CN201829285U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863363A (en) * | 2020-06-03 | 2020-10-30 | 中科立民新材料（扬州）有限公司 | Packaging method of high-temperature thermistor, packaged resistor and application of packaged resistor |
| CN111863363B (en) * | 2020-06-03 | 2023-02-17 | 中科立民新材料（扬州）有限公司 | Packaging method of high-temperature thermistor, packaged resistor and application of packaged resistor |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |