CN204167891U - Large galvanization Surge Protector - Google Patents
Large galvanization Surge Protector Download PDFInfo
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- CN204167891U CN204167891U CN201420447133.9U CN201420447133U CN204167891U CN 204167891 U CN204167891 U CN 204167891U CN 201420447133 U CN201420447133 U CN 201420447133U CN 204167891 U CN204167891 U CN 204167891U
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- matrix circuit
- piezo
- resistance
- temperature control
- circuit
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Abstract
The utility model provides a kind of large galvanization Surge Protector, relates to electronic equipment protection device technical field.This utility model comprises temperature control circuit A, temperature control circuit B, piezo-resistance matrix circuit A, piezo-resistance matrix circuit B, transient diode matrix circuit A, transient diode matrix circuit B, prime matrix circuit A and prime matrix circuit B, piezo-resistance matrix circuit A and temperature control circuit A is connected in series, and A is in parallel with transient diode matrix circuit A, prime matrix circuit for the branch road at the rear place of piezo-resistance matrix circuit A and temperature control circuit A series winding; Piezo-resistance matrix circuit B and temperature control circuit B is connected in series, and B is in parallel with transient diode matrix circuit B, prime matrix circuit for the branch road at the rear place of piezo-resistance matrix circuit B and temperature control circuit B series winding; Piezo-resistance matrix circuit A and piezo-resistance matrix circuit B all adopts piezo-resistance parallel-connection structure.It is high that the utility model solves modular Surge Protector residual voltage, and leakage current is large, the problem that the response time is long.
Description
Technical field
The utility model relates to a kind of electronic equipment protection device technical field, particularly relates to a kind of large galvanization Surge Protector.
Background technology
Electricity Surge Protector is widely used in the security protection of whole world high added value, high-end electronic electric equipment.Modular electricity Surge Protector will protect and just can reach about 1000V through B level, C level, D level three; the leakage current of common votage limit type Surge Protector is generally at 10uA, and As time goes on, leakage current can be increasing; directly affect the stability that SPD uses, finally cause SPD to lose efficacy.
Modular Surge Protector adopts monolithic piezo-resistance as main discharge circuit; due to monolithic piezo-resistance through-current capacity always not ideal enough (general monolithic piezo-resistance maximum discharge current 20KA 8/20uS); because piezo-resistance has a fatal shortcoming---there is irregular leakage current; after piezo-resistance work a period of time; the particularly piezo-resistance of poor-performing, because leakage current becomes conference accelerated ageing or heating self-destruction.The pressure-sensitive sensing resistor electricity Surge Protector of single structure, in the reaction time long (> 25ns), easily aging, after action several times, leakage current can increase, thus causes piezo-resistance overheated, and finally cause ageing failure, electric capacity is larger.The discharge tube electricity Surge Protector of single structure, residual voltage high (2 ~ 4KV), reaction time long (> 100ns), operation voltage precision is lower, there is power frequency continued flow, directly can not be used on power supply and do differential mode protection, although general electrified equipment requirement can be met, but along with the development of large scale integrated circuit, electronics technology, automated control technology and the extensive use of information technology in social all trades and professions, responsive electric equipment, accurate electronic equipment, signal transmission apparatus had become the important leverage of all trades and professions production normal operation already.If the component quality of Surge Protector inside have problem, aging or lost efficacy, the response time be certain to extend, Surge Protector just can not preempt protected device interior overvoltage, electric discharge components and parts startup, just lost out Protection significance.
Utility model content
For the weak point existed in the problems referred to above, the utility model provides a kind of large galvanization Surge Protector, and make to which solve modular Surge Protector residual voltage traditional at present high, leakage current is large, the technical barrier that the response time is long.
In order to solve the problem, the utility model provides a kind of large galvanization Surge Protector, wherein, comprise temperature control circuit A, temperature control circuit B, piezo-resistance matrix circuit A, piezo-resistance matrix circuit B, transient diode matrix circuit A, transient diode matrix circuit B, prime matrix circuit A and prime matrix circuit B, described piezo-resistance matrix circuit A and described temperature control circuit A is connected in series, and after described piezo-resistance matrix circuit A and described temperature control circuit A contacts, the branch road at place is in parallel with described transient diode matrix circuit A, described prime matrix circuit A; Described piezo-resistance matrix circuit B and described temperature control circuit B is connected in series, and after described piezo-resistance matrix circuit B and described temperature control circuit B contacts, the branch road at place is in parallel with described transient diode matrix circuit B, described prime matrix circuit B; Described piezo-resistance matrix circuit A and described piezo-resistance matrix circuit B all adopts piezo-resistance parallel-connection structure.
Preferably, described prime matrix circuit A one end is connected with ground wire, and the other end is connected with phase line; Described prime matrix circuit B one end is connected with zero line, and the other end is connected with phase line.
Preferably, described transient diode matrix circuit A one end is connected with ground wire, and the other end is connected with phase line; Described transient diode matrix circuit B one end is connected with zero line, and the other end is connected with phase line.
Preferably, one end of described piezo-resistance matrix circuit A is connected with ground wire, and the other end is connected with one end of described temperature control circuit A, and the other end of described temperature control circuit A is connected with phase line; One end of described piezo-resistance matrix circuit B is connected with zero line, and the other end is connected with one end of described temperature control circuit B, and the other end of described temperature control circuit B is connected with phase line.
Preferably, the piezo-resistance quantity of described piezo-resistance parallel-connection structure is at least 4.
Compared with prior art, the utility model has the following advantages:
The utility model adopts piezo-resistance parallel-connection structure, the residual voltage that multiple piezo-resistance parallel connection provides will be far smaller than the residual voltage of single piezo-resistance, and residual voltage is lower, and its fail safe is higher, only have little less than 2 times of arriving maximum working voltage of residual voltage, the protected equipment of guarantee is not damaged; Also solve modular Surge Protector residual voltage traditional at present high, leakage current is large simultaneously, the technical barrier that the response time is long.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the piezo-resistance parallel-connection structure schematic diagram of embodiment of the present utility model.
Main element symbol description:
1-prime matrix circuit A 2-prime matrix circuit B
3-temperature control circuit A 4-temperature control circuit B
5-piezo-resistance matrix circuit A 6-piezo-resistance matrix circuit B
7-transient diode matrix circuit A 8-transient diode matrix circuit B
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing and example, the utility model is described in further detail, but example is not as to restriction of the present utility model.
As shown in Figure 1 to Figure 2, embodiment of the present utility model comprises temperature control circuit A3, temperature control circuit B4, piezo-resistance matrix circuit A5, piezo-resistance matrix circuit B6, transient diode matrix circuit A7, transient diode matrix circuit B8, prime matrix circuit A1 and prime matrix circuit B2, piezo-resistance matrix circuit A5 and temperature control circuit A3 is connected in series, and A1 is in parallel with transient diode matrix circuit A7, prime matrix circuit for the branch road at the rear place of piezo-resistance matrix circuit A5 and temperature control circuit A3 series winding; Piezo-resistance matrix circuit B6 and temperature control circuit B4 is connected in series, and B2 is in parallel with transient diode matrix circuit B8, prime matrix circuit for the branch road at the rear place of piezo-resistance matrix circuit B6 and temperature control circuit B4 series winding; Piezo-resistance matrix circuit A5 and piezo-resistance matrix circuit B6 all adopts piezo-resistance parallel-connection structure.
Further, prime matrix circuit A1 one end is connected with ground wire, and the other end is connected with phase line; Prime matrix circuit B2 one end is connected with zero line, and the other end is connected with phase line.
Further, transient diode matrix circuit A7 one end is connected with ground wire, and the other end is connected with phase line; Transient diode matrix circuit B8 one end is connected with zero line, and the other end is connected with phase line.
Further, one end of piezo-resistance matrix circuit A5 is connected with ground wire, and the other end is connected with one end of temperature control circuit A3, and the other end of temperature control circuit A3 is connected with phase line; One end of piezo-resistance matrix circuit B6 is connected with zero line, and the other end is connected with one end of temperature control circuit B4, and the other end of temperature control circuit B4 is connected with phase line.
Further, the piezo-resistance quantity of piezo-resistance parallel-connection structure is at least 4.
The present embodiment adopts multiple piezo-resistance matrix to arrange on circuit boards; and traditional modular electricity Surge Protector adopts single piezo-resistance earial drainage; from the angle of protection; if single piezo-resistance is once be damaged or lost efficacy; then protected equipment, will lose protection, and the parallel connection of multiple piezo-resistance uses; once one, two piezo-resistance is wherein damaged, and other intact person still can serve as protection task.
Laboratory research finds: when multiple piezo-resistance is in parallel, if when the voltage acted on parallel circuits is 300V, 99.4% of electric current passes through the piezo-resistance of low voltage characteristic, when acting on the voltage on parallel circuits and being 500V, flowing through current ratio is 57: 43, when voltage is greater than 1000V, the electric current flowing through multiple piezo-resistance is almost identical.
When being applied to the protection occasion of larger transient state overcurrent; adopt multiple piezo-resistance in parallel; there is clear superiority; compared with single piezo-resistance; multiple piezo-resistance can provide lower clamping voltage; can be suppressed to and be less than maximum working voltage less than 2 times by the disposable voltage by more than 6KV, transient state overcurrent capability of releasing can be improved, also can slow down the performance degradation of wherein each piezo-resistance.
The present embodiment forms primarily of temperature control circuit A3, temperature control circuit B4, piezo-resistance matrix circuit A5, piezo-resistance matrix circuit B6, transient diode matrix circuit A7 and transient diode matrix circuit B8, discharge over the ground through prime matrix circuit A1 in surge one tunnel, flow through temperature control circuit A3 again to flow to piezo-resistance matrix circuit A5 and discharge over the ground, multiple piezo-resistance in parallel can provide lower clamping voltage, then surge flows through transient diode matrix circuit A7 and discharges over the ground, quick clamper surge voltage; Discharge to zero line through prime matrix circuit B2 in another road, flow through temperature control circuit B4 again to flow to piezo-resistance matrix circuit B6 and discharge to zero line, multiple piezo-resistance in parallel can provide lower clamping voltage, then surge flows through transient diode matrix circuit B8 and discharges to zero line, quick clamper surge voltage.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a large galvanization Surge Protector, it is characterized in that, comprise temperature control circuit A, temperature control circuit B, piezo-resistance matrix circuit A, piezo-resistance matrix circuit B, transient diode matrix circuit A, transient diode matrix circuit B, prime matrix circuit A and prime matrix circuit B, described piezo-resistance matrix circuit A and described temperature control circuit A is connected in series, and after described piezo-resistance matrix circuit A and described temperature control circuit A contacts, the branch road at place is in parallel with described transient diode matrix circuit A, described prime matrix circuit A; Described piezo-resistance matrix circuit B and described temperature control circuit B is connected in series, and after described piezo-resistance matrix circuit B and described temperature control circuit B contacts, the branch road at place is in parallel with described transient diode matrix circuit B, described prime matrix circuit B; Described piezo-resistance matrix circuit A and described piezo-resistance matrix circuit B all adopts piezo-resistance parallel-connection structure.
2. large galvanization Surge Protector as claimed in claim 1, it is characterized in that, described prime matrix circuit A one end is connected with ground wire, and the other end is connected with phase line; Described prime matrix circuit B one end is connected with zero line, and the other end is connected with phase line.
3. large galvanization Surge Protector as claimed in claim 1, it is characterized in that, described transient diode matrix circuit A one end is connected with ground wire, and the other end is connected with phase line; Described transient diode matrix circuit B one end is connected with zero line, and the other end is connected with phase line.
4. large galvanization Surge Protector as claimed in claim 1, it is characterized in that, one end of described piezo-resistance matrix circuit A is connected with ground wire, and the other end is connected with one end of described temperature control circuit A, and the other end of described temperature control circuit A is connected with phase line; One end of described piezo-resistance matrix circuit B is connected with zero line, and the other end is connected with one end of described temperature control circuit B, and the other end of described temperature control circuit B is connected with phase line.
5. large galvanization Surge Protector as claimed in claim 1, it is characterized in that, the piezo-resistance quantity of described piezo-resistance parallel-connection structure is at least 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420447133.9U CN204167891U (en) | 2014-08-06 | 2014-08-06 | Large galvanization Surge Protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420447133.9U CN204167891U (en) | 2014-08-06 | 2014-08-06 | Large galvanization Surge Protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204167891U true CN204167891U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420447133.9U Expired - Fee Related CN204167891U (en) | 2014-08-06 | 2014-08-06 | Large galvanization Surge Protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204167891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953311A (en) * | 2017-04-29 | 2017-07-14 | 国网江苏省电力公司职业技能训练基地 | A kind of Current Transformer Secondary overvoltage protection device |
-
2014
- 2014-08-06 CN CN201420447133.9U patent/CN204167891U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953311A (en) * | 2017-04-29 | 2017-07-14 | 国网江苏省电力公司职业技能训练基地 | A kind of Current Transformer Secondary overvoltage protection device |
| CN106953311B (en) * | 2017-04-29 | 2019-04-19 | 国网江苏省电力公司职业技能训练基地 | A kind of Current Transformer Secondary over-voltage protector |
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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: 20150218 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |