CN202712847U - Triple single-phase tandem type surge protective device - Google Patents
Triple single-phase tandem type surge protective device Download PDFInfo
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- CN202712847U CN202712847U CN 201220359709 CN201220359709U CN202712847U CN 202712847 U CN202712847 U CN 202712847U CN 201220359709 CN201220359709 CN 201220359709 CN 201220359709 U CN201220359709 U CN 201220359709U CN 202712847 U CN202712847 U CN 202712847U
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Abstract
The utility model discloses a triple single-phase tandem type surge protective device, which comprises six piezoresistors, six temperature protective tubes, six ceramic gas discharge tubes and two inductors, wherein an inductor is respectively connected between the phase line input end and the phase line output end of a single-phase alternating-current power supply and between a zero line input end and a zero line output end; one piezoresistor, one temperature protective tube and one ceramic gas discharge tube are connected in series to form a serial loop; and a serial loop is respectively connected between the phase line input end and the zero line input end, between the zero line input end and a ground line, between the phase line input end and the ground line, between the phase output end and the zero line output end, between the zero line output end and the ground line, and between the phase line output end and the ground line. According to the utility model, triple protection between the phase line and the zero line, between the phase line and the ground line, and between the zero line and the ground line of the input end and the output end is respectively carried out by adopting the piezoresistors, the temperature protective tubes and the ceramic gas discharge tubes, so that the purpose of ensuring safety operation of the single-phase alternating-current power supply is achieved.
Description
Technical field
The utility model relates to a kind of surge protector, relates in particular to a kind of triple single-phase series formula surge protector.
Background technology
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 suddenly peak current or voltage, surge protector can conducting shunting within the extremely short time, thereby avoids surge to the infringement of other equipment in the loop.The single protective circuit of the many employings of existing single-phase electricity surge protector; as three piezo-resistances are connected to single phase alternating current power supply mutually between zero, between the phase ground, between zero ground; or with three temperature safety tubes be connected to single phase alternating current power supply mutually between zero, between the phase ground, between zero ground, reach the purpose of overvoltage, overcurrent protection.There is the shortcoming that protected mode is single, security performance is not high enough in the protective circuit of above-mentioned single-phase electricity surge protector.
Summary of the invention
The purpose of this utility model provides a kind of triple single-phase series formula surge protector with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises six piezo-resistances, six temperature safety tubes, six ceramic gas discharge tubes and two inductance, the first inductance is connected in series between the phase line input and phase line output terminal of single phase alternating current power supply, the second inductance is connected in series between the zero line input and zero line output of described single phase alternating current power supply, the first piezo-resistance, the first temperature safety tube be connected after the ceramic gas discharge tube series connection its two ends respectively with described phase line input be connected the zero line input and be connected, the second piezo-resistance, the second temperature safety tube be connected that its two ends are connected with ground wire with described zero line input respectively after the ceramic gas discharge tube series connection, the 3rd piezo-resistance, the 3rd temperature safety tube is connected with ground wire with described phase line input respectively with rear its two ends of the 3rd ceramic gas discharge tube series connection, the 4th piezo-resistance, after the series connection of the 4th temperature safety tube and the 4th ceramic gas discharge tube its two ends respectively with described phase line output terminal be connected the zero line output and be connected, the 5th piezo-resistance, the 5th temperature safety tube is connected the 6th piezo-resistance with described zero line output respectively with rear its two ends of the 5th ceramic gas discharge tube series connection with ground wire, the 6th temperature safety tube is connected with ground wire with described phase line output terminal respectively with rear its two ends of the 6th ceramic gas discharge tube series connection.
The beneficial effects of the utility model are:
The utility model adopt piezo-resistance, temperature safety tube and ceramic gas discharge tube respectively to the input of single phase alternating current power supply and output mutually between zero, between the phase ground, carry out triple protection between zero ground; security performance obviously improves, and reaches the purpose of guaranteeing the single phase alternating current power supply safe operation.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises six piezo-resistance RV1, RV2, RV3, RV4, RV5, RV6, six temperature safety tube TF1, TF2, TF3, TF4, TF5, TF6, six ceramic gas discharge tube G1, G2, G3, G4, G5, G6 and two inductance T1, T2, the first inductance T1 is connected in series between the phase line input Lin and phase line output terminal Lout of single phase alternating current power supply, the second inductance T2 is connected in series between the zero line input Nin and zero line output Nout of single phase alternating current power supply, the first piezo-resistance RV1, the first temperature safety tube TF1 be connected that its two ends are connected with zero line input Nin with phase line input Lin respectively after the ceramic gas discharge tube G1 series connection, the second piezo-resistance RV2, the second temperature safety tube TF2 be connected after the ceramic gas discharge tube G2 series connection its two ends and be connected among the figure unmarked with ground wire with zero line input Nin respectively) be connected, the 3rd piezo-resistance RV3, the 3rd temperature safety tube TF3 is connected with ground wire with phase line input Lin respectively with rear its two ends of the 3rd ceramic gas discharge tube G3 series connection, the 4th piezo-resistance RV4, the 4th temperature safety tube TF4 is connected with zero line output Nout with phase line output terminal Lout respectively with rear its two ends of the 4th ceramic gas discharge tube G4 series connection, the 5th piezo-resistance RV5, the 5th temperature safety tube TF5 is connected respectively the 6th piezo-resistance RV6 with rear its two ends of the 5th ceramic gas discharge tube G5 series connection with ground wire with zero line output Nout, the 6th temperature safety tube TF6 is connected with ground wire with phase line output terminal Lout respectively with rear its two ends of the 6th ceramic gas discharge tube G6 series connection.
The pressure sensitive voltage value of above-mentioned piezo-resistance RV1, RV2, RV3, RV4, RV5, RV6 is selected as shown in the table:
| Rated voltage/fluctuation range | <10% | 10～15% | 15～20% | 20～30% | >30% |
| 110V～120V | 240V | 270V | 270V | 300V | 330V |
| 220V～240V | 470V | 510V | 560V | 620V | 680V |
| 380V～415V | 820V | 910V | 1000V | 1100V | 1500V |
The specification of said temperature protective tube TF1, TF2, TF3, TF4, TF5, TF6 is 130 ℃～135 ℃, 10A/250V.
The dc breakdown voltage of above-mentioned ceramic gas discharge tube G1, G2, G3, G4, G5, G6 is selected 470V～600V.
Above-mentioned inductance T1, T2 are air core inductor, inductance value 〉=20 μ H, and diameter of wire calculates according to load current.
Claims (1)
1. triple single-phase series formula surge protector; it is characterized in that: comprise six piezo-resistances; six temperature safety tubes; six ceramic gas discharge tubes and two inductance; the first inductance is connected in series between the phase line input and phase line output terminal of single phase alternating current power supply; the second inductance is connected in series between the zero line input and zero line output of described single phase alternating current power supply; the first piezo-resistance; the first temperature safety tube be connected after the ceramic gas discharge tube series connection its two ends respectively with described phase line input be connected the zero line input and be connected; the second piezo-resistance; the second temperature safety tube be connected that its two ends are connected with ground wire with described zero line input respectively after the ceramic gas discharge tube series connection; the 3rd piezo-resistance; the 3rd temperature safety tube is connected with ground wire with described phase line input respectively with rear its two ends of the 3rd ceramic gas discharge tube series connection; the 4th piezo-resistance; after the series connection of the 4th temperature safety tube and the 4th ceramic gas discharge tube its two ends respectively with described phase line output terminal be connected the zero line output and be connected; the 5th piezo-resistance; the 5th temperature safety tube is connected the 6th piezo-resistance with described zero line output respectively with rear its two ends of the 5th ceramic gas discharge tube series connection with ground wire; the 6th temperature safety tube is connected with ground wire with described phase line output terminal respectively with rear its two ends of the 6th ceramic gas discharge tube series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359709 CN202712847U (en) | 2012-07-24 | 2012-07-24 | Triple single-phase tandem type surge protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359709 CN202712847U (en) | 2012-07-24 | 2012-07-24 | Triple single-phase tandem type surge protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712847U true CN202712847U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359709 Expired - Fee Related CN202712847U (en) | 2012-07-24 | 2012-07-24 | Triple single-phase tandem type surge protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2903113A1 (en) * | 2014-01-31 | 2015-08-05 | Beijing Tonlier Energy Technology Co., Ltd. | Surge protection circuit |
-
2012
- 2012-07-24 CN CN 201220359709 patent/CN202712847U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2903113A1 (en) * | 2014-01-31 | 2015-08-05 | Beijing Tonlier Energy Technology Co., Ltd. | Surge protection circuit |
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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: 20130130 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |