CN201266524Y - Surge protector - Google Patents
Surge protector Download PDFInfo
- Publication number
- CN201266524Y CN201266524Y CNU2008200394111U CN200820039411U CN201266524Y CN 201266524 Y CN201266524 Y CN 201266524Y CN U2008200394111 U CNU2008200394111 U CN U2008200394111U CN 200820039411 U CN200820039411 U CN 200820039411U CN 201266524 Y CN201266524 Y CN 201266524Y
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- CN
- China
- Prior art keywords
- electrode
- surge protector
- varistor
- shell
- piezo
- 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.)
- Ceased
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- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to an over-voltage protection device, in particular to a surge protective device with the anti-lightning function and state-indication function; the surge protective device comprises a shell, a first electrode and a second electrode; a varistor and an elastic reed are arranged between the first electrode and the second electrode; the first electrode and the second electrode are respectively fixed in the shell by screws; two pins of the varistor are respectively welded to the second electrode and the elastic reed; one end of the elastic reed is riveted with the first electrode and the other end thereof is welded to one pin of the varistor; when the product fails due to ageing as the surge protective device is subjected to lightning or over-voltage, the varistor heats and leads the low-temperature welding point (where the varistor and the elastic reed are connected) to be melted, thus disconnecting the varistor with the elastic reed and leading the surge protective device to be disconnected with a power supply further.
Description
Technical field
The utility model relates to a kind of overvoltage protection, particularly a kind of surge protector with anti-lightning strike function, carrier state indication.
Background technology
Surge protector is a kind of low-voltage variation device commonly used; under normal circumstances; it is in high impedance status; in case and circuit is because of thunderbolt or other reason when surge occurring; its meeting conducting in the extremely short time; lightning current or overvoltage are introduced the earth by earth connection, come equipment on the protection circuit with this.When surge protector causes deterioration because of a variety of causes; the interior varistor of surge protector this moment can swash acute heating, thereby makes the trip gear action in the surge protector, makes the disengaging of surge protector and circuit; prevent surge protector " short circuit ", make the line accident extension.
In order to realize above-mentioned functions, occur the surge protector of various structure already on the existing market, but be independent trip gear; For realizing the higher through-current capability of surge protector, can only will link with single trip gear again after the parallel connection of multi-disc varistor, the following drawback of so just inevitable appearance: after (1) multi-disc varistor is connected in parallel, need only wherein a slice deterioration, just cause the trip gear action, surge protector and circuit are broken away from, and at the use scene in most cases, can not switch the zero-time, thereby make protected equipment be in non-guard mode; (2) single trip gear need be taken into account through-current capability and dropout ability, and making the surge protector through-current capability improve has certain limitation; This patent product can finely overcome the above problems.
The utility model content
Technical problem to be solved in the utility model is: by designing a kind of structure, can reach the parallel connection of thermal release device multi-disc, and can improve the surge protector through-current capability.
The technical scheme that its technical problem that solves the utility model adopts is: set up a plurality of independent thermal release devices; For realizing above technology: a kind of surge protector; include shell, first electrode, second electrode, between first electrode and second electrode, be provided with piezo-resistance, elastic spring; at the useful fixed screw of shell fixing first electrode and second electrode; the two pins of piezo-resistance welds second electrode and elastic spring respectively; elastic spring one end and the riveted joint of first electrode, the elastic spring other end is welded on the pin of piezo-resistance.
Described surge protector is provided with at least 2 piezo-resistances and at least 2 elastic springs.
Have transparent window on the described shell.
The other end of described elastic spring is smeared redness, constitutes alert flag.
Described shell is the flame retardant plastics shell.
The beneficial effects of the utility model are: (1) adopts the multi-channel parallel trip gear, is convenient to improve the product through-current capability; (2) have the backup protection function, can make and take place to wear out or have the fault varistor to break away from separately, and not influence inner other protection loop operate as normal; (3) convenient, the reliable in quality of manufacture craft has promoted the defencive function of surge protector.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the utility model before opening circuit.
Fig. 3 is the structural representation of the utility model after opening circuit.
Among the figure: 1. shell 2. first electrodes 3. second electrodes 4. piezo-resistances 5. elastic springs.
Embodiment
Surge protector as shown in Figure 1; include shell 1, first electrode 2, second electrode 3, between first electrode 2 and second electrode 3, be provided with piezo-resistance 4, elastic spring 5; at shell 1 useful fixed screw fixing first electrode 2 and second electrode 3; the two pins of piezo-resistance 4 welds second electrode 3 and elastic spring 5 respectively; elastic spring 5 one ends and 2 riveted joints of first electrode, elastic spring 5 other ends are welded on the pin of piezo-resistance 4.
As shown in Figures 2 and 3, during normal the use, when surge protector is struck by lightning or other a variety of causes when causing deterioration, varistor can swash acute heating in the surge protector, thereby make the take the lead in action and send warning of certain trip gear in the surge protector, remain trip gear as time passes and disconnect one by one, for the time has been striven in troubleshooting; Because of a plurality of trip gears are arranged, make things convenient for the parallel connection of varistor multi-disc simultaneously, can increase substantially the through-flow performance of surge protector.
Claims (5)
1. surge protector; include shell (1), first electrode (2), second electrode (3), between first electrode (2) and second electrode (3), be provided with piezo-resistance (4), elastic spring (5); it is characterized in that: first electrode (2) and second electrode (3) in shell (1), fixed with screw; the two pins of piezo-resistance (4) welds second electrode (3) and elastic spring (5) respectively; elastic spring (5) one ends and first electrode (2) riveted joint, elastic spring (5) other end is welded on the pin of piezo-resistance (4).
2. surge protector according to claim 1 is characterized in that: described surge protector is arranged to rare 2 piezo-resistances (4) and at least 2 elastic springs (5).
3. surge protector according to claim 1 is characterized in that: described shell has transparent window on (1).
4. surge protector according to claim 1 is characterized in that: the other end of described elastic spring (5) is smeared redness, constitutes alert flag.
5. surge protector according to claim 1 is characterized in that: described shell (1) is the flame retardant plastics shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200394111U CN201266524Y (en) | 2008-08-20 | 2008-08-20 | Surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200394111U CN201266524Y (en) | 2008-08-20 | 2008-08-20 | Surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266524Y true CN201266524Y (en) | 2009-07-01 |
Family
ID=40832899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200394111U Ceased CN201266524Y (en) | 2008-08-20 | 2008-08-20 | Surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266524Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764357B (en) * | 2010-01-29 | 2011-09-28 | 成都东方瀚易科技发展有限公司 | Module type lightening arrestor for high-energy power |
| CN103168330A (en) * | 2010-08-27 | 2013-06-19 | 库柏技术公司 | Compact transient voltage surge suppression device |
| CN107958758A (en) * | 2017-12-19 | 2018-04-24 | 上海盎特电气有限公司 | A kind of fusing piezoresistor certainly |
| CN110416971A (en) * | 2019-09-06 | 2019-11-05 | 深圳市槟城电子有限公司 | A kind of onboard surge protection device |
-
2008
- 2008-08-20 CN CNU2008200394111U patent/CN201266524Y/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764357B (en) * | 2010-01-29 | 2011-09-28 | 成都东方瀚易科技发展有限公司 | Module type lightening arrestor for high-energy power |
| CN103168330A (en) * | 2010-08-27 | 2013-06-19 | 库柏技术公司 | Compact transient voltage surge suppression device |
| CN106098276A (en) * | 2010-08-27 | 2016-11-09 | 库柏技术公司 | Transient voltage surge suppression device |
| CN106098276B (en) * | 2010-08-27 | 2019-09-20 | 伊顿智能动力有限公司 | Transient voltage surge suppression device |
| CN107958758A (en) * | 2017-12-19 | 2018-04-24 | 上海盎特电气有限公司 | A kind of fusing piezoresistor certainly |
| CN107958758B (en) * | 2017-12-19 | 2024-05-14 | 上海盎特电气有限公司 | Self-fusing piezoresistor |
| CN110416971A (en) * | 2019-09-06 | 2019-11-05 | 深圳市槟城电子有限公司 | A kind of onboard surge protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20110307 Decision number of declaring invalidation: 16135 Granted publication date: 20090701 |