CN202905642U - Lightning protection leakage circuit breaker - Google Patents
Lightning protection leakage circuit breaker Download PDFInfo
- Publication number
- CN202905642U CN202905642U CN201220560901.2U CN201220560901U CN202905642U CN 202905642 U CN202905642 U CN 202905642U CN 201220560901 U CN201220560901 U CN 201220560901U CN 202905642 U CN202905642 U CN 202905642U
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- sequence current
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- Expired - Fee Related
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- Breakers (AREA)
Abstract
Provided is a lightning protection leakage circuit breaker, which belongs to the technical field of leakage circuit breakers. The lightning protection leakage circuit breaker comprises a shell (6) and is characterized in that inside the shell, an L wire is connected with a phase wire, an N wire is connected with a zero wire, the L wire is connected with a tripping device (1), a heat-sensitive bimetallic strip (2) and an instantaneous tripping coil (3), the L wire and the N wire pass through a zero sequence current transformer (4) arranged below the instantaneous tripping coil (3), one end of a resistor R is connected with the L wire between the zero sequence current transformer and the instantaneous tripping coil, the other end of the resistor R is connected with the N wire between the zero sequence current transformer and an anti-surge protection circuit through a test button (5), the anti-surge protection circuit is arranged below the zero sequence current transformer, an output end of the anti-surge protection circuit is connected with a high-frequency filter circuit, and an output end of the high-frequency filter circuit is connected with a household appliance. According to the utility model, the lightning protection leakage circuit breaker will trip quickly when the voltage rises due to lightning strike and has the characteristics of fast response to discharge, large through-flow capacity, low cost and high practicability.
Description
Technical field
The utility model provides a kind of lightning-proof electric leakage circuit breaker, belongs to the residual current circuit breaker technical field.
Background technology
Thunderstorm season all can have the low-voltage electrical apparatus of a lot of family expenses or office space to be burnt by thunderbolt, cause very large property loss, along with improving constantly of living standard, family expenses or the used low-voltage electrical apparatus of handling official business increase considerably, the thunderbolt loss also increases gradually, also can cause unsafe factor to the people simultaneously.Our family or office space great majority all using common leakage switch, have electric leakage at present, overload and short-circuit protection, but when being struck by lightning or other reasons when causing voltage sharply to raise, common leakage switch just can't trip protection institute electrical appliance.
The utility model content
According to above the deficiencies in the prior art, the technical problems to be solved in the utility model is: the lightning-proof electric leakage circuit breaker that a kind of discharge response is fast, discharge capacity is large, cost is low, practicality is high is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of lightning-proof electric leakage circuit breaker; comprise housing; it is characterized in that: enclosure interior L line connects phase line; the N line connects zero line; the L line connects release from top to bottom successively; thermosensitive bimetal and instantaneous trip coil; L line pass zero sequence current mutual inductor vertical with the N line; zero sequence current mutual inductor is arranged on the below of instantaneous trip coil; resistance R one end connects the L line between zero sequence current mutual inductor and the instantaneous trip coil; the resistance R other end is by the N line between test button connection zero sequence current mutual inductor and the anti-surge protection circuit; anti-surge protection circuit is arranged on the zero sequence current mutual inductor below; the anti-surge protection circuit output arranges the connection high-frequency filter circuit, and the output of high-frequency filter circuit connects household electrical appliance.
The L line arranges the connection thermosensitive bimetal, and when the main power line electric current has surpassed safe carrying capacity, when temperature also surpassed normal working temperature, the thermosensitive bimetal automatic disconnection was carried out overload protection to circuit.The L line arranges and connects the instantaneous trip coil, and when piezo-resistance RV2 both end voltage reached rated voltage, live wire L and zero line N can be short-circuited, and instantaneous trip coil trip protection power consumption equipment carries out short-circuit protection after the short circuit.The instantaneous mouthful coil below of taking off arranges zero sequence current mutual inductor, and when in the circuit leak current fault occuring, zero sequence current mutual inductor produces zero-sequence current, makes test button automatically press connection, forms the release tripping operation that leakage protection circuit removes to carry out tripping mechanism.
Described anti-surge protection circuit comprises 6 piezo-resistances; piezo-resistance RV1 is connected end and is connected the L line with piezo-resistance RV5; other end earth connection, piezo-resistance RV2 one end connects the L line, and the other end connects the N line; piezo-resistance RV3 one end connects the N line; other end earth connection, piezo-resistance RV6 one end connects the L line, and the other end connects the N line; piezo-resistance RV4 one end connects N line, other end earth connection.After piezo-resistance RV1, RV2 and RV3 arrived rated voltage, impedance sharply reduced, and absorbing lightening pulse, when piezo-resistance RV1 or RV3 both end voltage reached its rated voltage, impedance reduced immediately, and live wire L and zero line N are discharged between over the ground.
Described high-frequency filter circuit comprises inductance L 1, inductance L 2 and capacitor C, inductance L 1 two ends arrange respectively an end that connects piezo-resistance RV2 and piezo-resistance RV6, inductance L 2 two ends arrange respectively the other end that connects piezo-resistance RV2 and piezo-resistance RV6, capacitor C one end connects the L line, and the other end connects the N line.High-frequency filter circuit is set, suppresses the interference signal in the circuit.
The beneficial effect that the utility model has is: lightning-proof electric leakage circuit breaker is successively through a tripping mechanism, an overload protection, a short-circuit protection, an earth leakage protective; then enter the anti-surge protection circuit that piezo-resistance RV1, RV2, RV3, RV4, RV5 and RV6 form; finally by the high-frequency filter circuit of crossing inductance L 1, L2 and capacitor C composition; arrive power consumption equipment; have lightning protection, electric leakage, overload, short circuit and over-voltage protecting function.The lightning-proof electric leakage circuit breaker that the utility model discharge response is fast, discharge capacity is large, cost is low, practicality is high.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: 1, release; 2, thermosensitive bimetal; 3, instantaneous trip coil; 4, zero sequence current mutual inductor; 5, test button; 6, housing; RV1, RV2, RV3, RV4, RV5, RV6 are piezo-resistance.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As shown in Figure 1; lightning-proof electric leakage circuit breaker; comprise housing 6; enclosure interior L line connects phase line; the N line connects zero line; the L line connects release 1 from top to bottom successively; thermosensitive bimetal 2 and instantaneous trip coil 3; L line pass zero sequence current mutual inductor 4 vertical with the N line; zero sequence current mutual inductor 4 is arranged on the below of instantaneous trip coil 3; resistance R one end connects the L line between zero sequence current mutual inductor 4 and the instantaneous trip coil 3; the N line that the resistance R other end connects between zero sequence current mutual inductor 4 and the anti-surge protection circuit by test button 5; anti-surge protection circuit is arranged on zero sequence current mutual inductor 4 belows; the anti-surge protection circuit output arranges the connection high-frequency filter circuit, and the output of high-frequency filter circuit connects household electrical appliance.Anti-surge protection circuit comprises 6 piezo-resistances; piezo-resistance RV1 is connected end and is connected the L line with piezo-resistance RV5; other end earth connection, piezo-resistance RV2 one end connects the L line, and the other end connects the N line; piezo-resistance RV3 one end connects the N line; other end earth connection, piezo-resistance RV6 one end connects the L line, and the other end connects the N line; piezo-resistance RV4 one end connects N line, other end earth connection.High-frequency filter circuit comprises inductance L 1, inductance L 2 and capacitor C, inductance L 1 two ends arrange respectively an end that connects piezo-resistance RV2 and piezo-resistance RV6, inductance L 2 two ends arrange respectively the other end that connects piezo-resistance RV2 and piezo-resistance RV6, and capacitor C one end connects the L line, and the other end connects the N line.
Operation principle and use procedure:
During work, when thunderbolt or other reasons when causing line over-voltage, the voltage that power consumption equipment bears sharply raises, reach the rated voltage of piezo-resistance RV1, RV2, RV3 after, its impedance sharply reduces, to absorb lightening pulse.As when piezo-resistance RV1 or RV3 both end voltage reach its rated voltage; impedance will reduce immediately; make live wire L or zero line N over the ground between the discharge; discharge in short time can not reply normal voltage the time at the utmost point; zero sequence current mutual inductor 4 zero-sequence current that produces makes earth leakage protective device go to carry out the tripping mechanism tripping operation.Will make live wire L and zero line N short circuit if RV2 reaches rated value, final short circuit tripping coil goes to carry out tripping operation and protects power consumption equipment.
Claims (3)
1. lightning-proof electric leakage circuit breaker; comprise housing (6); it is characterized in that: enclosure interior L line connects phase line; the N line connects zero line; the L line connects release (1) from top to bottom successively; thermosensitive bimetal (2) and instantaneous trip coil (3); L line pass zero sequence current mutual inductor (4) vertical with the N line; zero sequence current mutual inductor (4) is arranged on the below of instantaneous trip coil (3); resistance R one end connects the L line between zero sequence current mutual inductor (4) and the instantaneous trip coil (3); the resistance R other end is by the N line between test button (5) connection zero sequence current mutual inductor (4) and the anti-surge protection circuit; anti-surge protection circuit is arranged on zero sequence current mutual inductor (4) below; the anti-surge protection circuit output arranges the connection high-frequency filter circuit, and the output of high-frequency filter circuit connects household electrical appliance.
2. lightning-proof electric leakage circuit breaker according to claim 1; it is characterized in that: described anti-surge protection circuit comprises 6 piezo-resistances, and piezo-resistance RV1 is connected end and is connected L line, other end earth connection with piezo-resistance RV5; piezo-resistance RV2 one end connects the L line; the other end connects the N line, and piezo-resistance RV3 one end connects N line, other end earth connection; piezo-resistance RV6 one end connects the L line; the other end connects the N line, and piezo-resistance RV4 one end connects N line, other end earth connection.
3. lightning-proof electric leakage circuit breaker according to claim 1, it is characterized in that: described high-frequency filter circuit comprises inductance L 1, inductance L 2 and capacitor C, inductance L 1 two ends arrange respectively an end that connects piezo-resistance RV2 and piezo-resistance RV6, inductance L 2 two ends arrange respectively the other end that connects piezo-resistance RV2 and piezo-resistance RV6, capacitor C one end connects the L line, and the other end connects the N line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220560901.2U CN202905642U (en) | 2012-10-29 | 2012-10-29 | Lightning protection leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220560901.2U CN202905642U (en) | 2012-10-29 | 2012-10-29 | Lightning protection leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905642U true CN202905642U (en) | 2013-04-24 |
Family
ID=48126276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220560901.2U Expired - Fee Related CN202905642U (en) | 2012-10-29 | 2012-10-29 | Lightning protection leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905642U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943431A (en) * | 2014-05-10 | 2014-07-23 | 六盘水金星机电设备有限公司 | Improved residual current circuit breaker |
| CN104934932A (en) * | 2015-06-17 | 2015-09-23 | 广东融捷光电科技有限公司 | Intelligent direct current electricity leakage detection and surge protection device |
| CN105024342A (en) * | 2014-04-27 | 2015-11-04 | 章五明 | Lightning protection single-phase leakage protector |
| CN105448613A (en) * | 2014-08-15 | 2016-03-30 | 施耐德电气工业公司 | Release used for breaker |
| CN105449635A (en) * | 2014-05-28 | 2016-03-30 | 益而益(集团)有限公司 | Electric leakage protector with overtemperature protection device |
| CN105610124A (en) * | 2014-11-18 | 2016-05-25 | 施耐德电气美国股份有限公司 | EVSE handle with automatic thermal shut down by NTC to ground |
| CN106300242A (en) * | 2015-05-25 | 2017-01-04 | 广西荔浦深蓝电子有限公司 | A kind of universal uneven formula overvoltage lightning protection circuit |
| CN110494947A (en) * | 2017-03-24 | 2019-11-22 | 西门子股份公司 | Breaker |
-
2012
- 2012-10-29 CN CN201220560901.2U patent/CN202905642U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024342A (en) * | 2014-04-27 | 2015-11-04 | 章五明 | Lightning protection single-phase leakage protector |
| CN103943431A (en) * | 2014-05-10 | 2014-07-23 | 六盘水金星机电设备有限公司 | Improved residual current circuit breaker |
| CN105449635A (en) * | 2014-05-28 | 2016-03-30 | 益而益(集团)有限公司 | Electric leakage protector with overtemperature protection device |
| CN105449635B (en) * | 2014-05-28 | 2018-12-28 | 益而益(集团)有限公司 | Earth leakage protective device with over-temperature protection device |
| CN105448613A (en) * | 2014-08-15 | 2016-03-30 | 施耐德电气工业公司 | Release used for breaker |
| CN105610124A (en) * | 2014-11-18 | 2016-05-25 | 施耐德电气美国股份有限公司 | EVSE handle with automatic thermal shut down by NTC to ground |
| EP3025902B1 (en) * | 2014-11-18 | 2023-05-17 | Schneider Electric USA, Inc. | Evse handle with automatic thermal shut down by ntc to ground |
| CN106300242A (en) * | 2015-05-25 | 2017-01-04 | 广西荔浦深蓝电子有限公司 | A kind of universal uneven formula overvoltage lightning protection circuit |
| CN106300242B (en) * | 2015-05-25 | 2018-11-09 | 广西荔浦深蓝电子有限公司 | A kind of universal uneven formula overvoltage lightning protection circuit |
| CN104934932B (en) * | 2015-06-17 | 2017-10-31 | 广东融捷光电科技有限公司 | A kind of intelligent DC detection of electrical leakage and surge protective device |
| CN104934932A (en) * | 2015-06-17 | 2015-09-23 | 广东融捷光电科技有限公司 | Intelligent direct current electricity leakage detection and surge protection device |
| CN110494947A (en) * | 2017-03-24 | 2019-11-22 | 西门子股份公司 | Breaker |
| US11133142B2 (en) | 2017-03-24 | 2021-09-28 | Siemens Aktiengesellschaft | Power switch |
| CN110494947B (en) * | 2017-03-24 | 2021-10-29 | 西门子股份公司 | Circuit breaker |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20211029 |