CN103855699A - Novel surge protection device - Google Patents
Novel surge protection device Download PDFInfo
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- CN103855699A CN103855699A CN201210519215.5A CN201210519215A CN103855699A CN 103855699 A CN103855699 A CN 103855699A CN 201210519215 A CN201210519215 A CN 201210519215A CN 103855699 A CN103855699 A CN 103855699A
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- surge protector
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- lightning protection
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Abstract
The invention relates to a novel surge protection device which mainly comprises breaking contacts (a fixed contact and a moving contact), a tripping mechanism, a stepping electromagnet, a switch-on wrench, a locking plate, a current sensor, a power frequency current suppressor, a delay stepping electromagnet, an arc chute, an arc extinction magnetic blow-out plate, an upper terminal, a lower terminal and a lightning protection element. The upper terminal is connected with the breaking contacts, the power frequency current suppressor, the lightning protection element and the lower terminal in series. The delay stepping electromagnet moves fast when power frequency currents pass through current signals output by the current sensor, the locking plate is pushed, the tripping mechanism is driven to turn off a whole surge protection device access. The delay stepping electromagnet does not move when lightning currents pass, and the lightning currents can be discharged smoothly. The novel surge protection device effectively solves the protection dead zone problem of an existing surge protection device backup protection device, lowers residual voltages, and is safe and reliable.
Description
Technical field
The invention belongs to the surge protection technical field of electronic electric equipment.
Background technology
Thunder and lightning is by the charged cloud a kind of special weather phenomenon causing of aloft discharging.Thunder and lightning is the major reason that causes electronic equipment to damage, and it threatens the safe and stable operation of the every field electronic informations such as building, railway, civil aviaton, communication, industry control, military affairs.On the metallic circuits such as the power line being connected with electronic equipment, holding wire and control line, surge protector (SPD) being installed is one of important measures of lightning protection.Surge protector has been widely used in various fields, has important effect in lightning protection.The quality of its state directly affects its lightning protection effect, thereby the safety of protected equipment is brought to hidden danger.
The overcurrent protective device of existing SPD adopts fuse or circuit breaker conventionally, for disjunction SPD short trouble path.But when power system failure, SPD cross flow short-circuit, power current by time, its current value does not likely reach the startup value of overcurrent protective device, overcurrent protective device is failure to actuate, and causes power current to continue to pass through, SPD is on fire in lightning protection component heating.If the startup value of overcurrent protective device is selected little, though can start, be difficult to resist the impact of lightning current, cause the SPD lightning current of cannot normally releasing.Therefore existing overcurrent protective device exists serious blind area to the protection of SPD, in this region, overcurrent protective device is failure to actuate, cannot disjunction SPD fault paths.Existing overcurrent protective device separates installation with SPD in addition, needs larger installing space, and circuit coiling is complicated, and residual voltage is increased, and threatens protected equipment.
Summary of the invention
The present invention integrates lightning protection component and overcurrent protective device, and residual voltage is lower, improves lightning protection effect, effectively addresses the above problem.
The present invention is by the following technical solutions: the present invention is the surge protector for power electronic circuits system; described surge protector comprises lightning protection component and overcurrent protective device; both are connected in series, and are arranged in a housing, are overall Novel electric surge protectors.
Described overcurrent protective device mainly comprises break contact (fixed contact and moving contact), tripping mechanism, step electromagnet, combined floodgate spanner, locking board, current sensor, power current inhibitor, time delay step electromagnet, arc-chute, arc extinguishing magnetic blow-out plate and upper and lower terminals.
Described upper terminals are connected with break contact fixed contact, and fixed contact is connected with tripping mechanism moving contact, and moving contact is connected in series through current sensor and power current inhibitor, and power current inhibitor is connected with lightning protection component, is finally connected with lower terminals; Current sensor output is connected to time delay step electromagnet, and the motion of time delay step electromagnet iron core can promote locking board, thereby drives whole tripping mechanism that moving contact and fixed contact are separated; Can pass through combined floodgate spanner closing by hand; Arc-chute and arc extinguishing magnetic blow-out plate are the electric arc of generation for eliminating that moving contact and fixed contact separate.
The invention is characterized in:
1. this Novel electric surge protector has solved the protection blind zone problem of existing overcurrent protective device;
2. this Novel electric surge protector is integrated in one overcurrent protective device and lightning protection component, effectively reduces residual voltage, reduces installing space.
This Novel electric surge protector be one can closing by hand Novel electric surge protector;
When power system failure, power current flow through, when lightning protection component inefficacy short circuit, power current inhibitor in this backup protection equipment can play inhibitory action to the electric current now flowing through, cause the power current value by lightning protection component can rising, extend the time of SPD breaking out of fire accident; Time delay step electromagnet quick-action after pulse number stepping, Millisecond time delay simultaneously, promotes locking board, drives tripping mechanism, opens break contact, thereby cuts off SPD path, plays backup protection effect;
5. in the time that thunder and lightning surge current flows through, described time delay step electromagnet also, without the stepping of extra pulse number, does not enter the time delay stage, and lightning current finishes, and tripping mechanism is failure to actuate, and guarantees the SPD lightning current of normally releasing.
Accompanying drawing explanation
Fig. 1 is first embodiment of the present invention structural representation.
Fig. 2 is second embodiment of the present invention structural representation.
Fig. 3 is the principle schematic of first, second embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
As shown in Figure 1, 2, 3, the 1st, upper terminals, the 2nd, break contact, the 3rd, tripping mechanism, the 4th, combined floodgate spanner, the 5th, locking board, the 6th, current sensor, the 7th, power current inhibitor, the 8th, lower terminals, the 9th, shell, the 10th, lightning protection component, the 11st, time delay step electromagnet, the 12nd, arc-chute, the 13rd, arc extinguishing magnetic blow-out plate, the 14th, moving contact, the 15th, fixed contact.
Fig. 1 is first embodiment of the present invention structural representation, wherein lightning protection component (10) and power current inhibitor (7) level connection joint.
Fig. 2 is second embodiment of the present invention structural representation, and wherein lightning protection component (10) stacks up and down with power current inhibitor (7).
Fig. 3 is the principle schematic of first, second embodiment of the present invention.
The present invention is the surge protector for power electronic circuits system, described surge protector lightning protection component and overcurrent protective device; Described overcurrent protective device mainly comprises break contact (fixed contact and moving contact), tripping mechanism, step electromagnet, combined floodgate spanner, locking board, current sensor, power current inhibitor, time delay step electromagnet, arc-chute, arc extinguishing magnetic blow-out plate and upper and lower terminals.
Described upper terminals (1), break contact (2), power current inhibitor (7), lightning protection component (10), lower terminals (8) are connected in series.
The electric current that described current sensor (6) flows through in can induction line, and export current signal to time delay step electromagnet (11).
Described power current inhibitor (7), is series between upper and lower terminals, and the power current flowing through is had to inhibitory action, can race against time for lightning protection component fault is on fire below.
The time difference of the signal that described time delay step electromagnet (11) can be exported respectively according to current sensor (6) induction lightening stream and power current, realizes a kind of parametrization control.Power current is the periodic wave of Millisecond, and time delay step electromagnet can pass through pulse number stepping, and quick-action after Millisecond time delay promotes locking board (5), drives tripping mechanism (3), and disjunction SPD path, plays a protective role; Lightning current is fast-changing Microsecond grade pulse, and time delay step electromagnet (11) can not complete pulse number stepping, enter the time delay stage, and lightning current flows through, so tripping mechanism (3) is failure to actuate, assurance lightning current is released smoothly.
Described combined floodgate spanner (4) separates when moving contact (13) and fixed contact (14); be after overcurrent protective device starts; (after determining that SPD does not damage) manually can close a floodgate by combined floodgate spanner (4); moving contact (14) and fixed contact (15) are resumed contacts, thereby make unspoiled SPD again take back circuit.
Described arc-chute (12) and arc extinguishing magnetic blow-out plate (13) form the arc-control device of this Novel electric surge protector, the electric arc producing while separating with fixed contact (15) for eliminating moving contact (14).
Claims (8)
1. a Novel electric surge protector, is characterized in that: by overcurrent protective device and lightning protection component is integrated and one, be loaded on housing; Overcurrent protective device comprises break contact (fixed contact and moving contact), tripping mechanism, step electromagnet, combined floodgate spanner, locking board, current sensor, power current inhibitor, time delay step electromagnet, arc-chute, arc extinguishing magnetic blow-out plate and upper and lower terminals.
2. a kind of Novel electric surge protector according to claim 1, is characterized in that: adopt time delay step electromagnet to realize parametrization control according to the time difference of lightning current and power current, as when judging the core foundation of disjunction SPD path.
3. a kind of Novel electric surge protector according to claim 1, is characterized in that: in device main line, power frequency current suppressor is installed.
4. a kind of Novel electric surge protector according to claim 1, is characterized in that: upper terminals, break contact, power current inhibitor, lightning protection component, lower terminals are connected in series.
5. Novel electric surge protector according to claim 1, is characterized in that: can pass through combined floodgate spanner manual closing operation.
6. Novel electric surge protector according to claim 1, is characterized in that: described lightning protection component can be the non-linear element such as piezo-resistance, discharge tube.
7. Novel electric surge protector according to claim 1, is characterized in that: the position of described lightning protection component can with power current inhibitor level connection joint.
8. Novel electric surge protector according to claim 1, is characterized in that: the position of described lightning protection component can stack up and down with power current inhibitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519215.5A CN103855699B (en) | 2012-12-06 | 2012-12-06 | A kind of new surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519215.5A CN103855699B (en) | 2012-12-06 | 2012-12-06 | A kind of new surge protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103855699A true CN103855699A (en) | 2014-06-11 |
| CN103855699B CN103855699B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210519215.5A Active CN103855699B (en) | 2012-12-06 | 2012-12-06 | A kind of new surge protector |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576630A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576627A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576635A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576639A (en) * | 2014-11-10 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576632A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576633A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576636A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105633932A (en) * | 2014-11-08 | 2016-06-01 | 孙麓轩 | Novel surge protector |
| CN105656013A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656006A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656005A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656010A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656009A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN106026060A (en) * | 2014-11-08 | 2016-10-12 | 孙麓轩 | Novel surge protector |
| CN106099886A (en) * | 2014-11-08 | 2016-11-09 | 孙麓轩 | A kind of Novel electric surge protector |
| CN108766843A (en) * | 2018-09-03 | 2018-11-06 | 厦门大恒科技有限公司 | A kind of microswitch of tolerance lightning current |
| CN112350269A (en) * | 2019-08-07 | 2021-02-09 | 上海永继电气股份有限公司 | Back-up protector of surge protector |
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| CN202042442U (en) * | 2011-05-16 | 2011-11-16 | 法泰电器（江苏）股份有限公司 | Arc initiating device of circuit breaker |
| CN202206131U (en) * | 2011-08-17 | 2012-04-25 | 深圳市天顺电气有限公司 | Current-limiting type double-channel surge protection device |
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2012
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0860927A1 (en) * | 1997-02-12 | 1998-08-26 | Felten & Guilleaume Austria AG | Protection circuit arrangement for surge arrester |
| CN2646925Y (en) * | 2003-09-17 | 2004-10-06 | 舜全电子（苏州）有限公司 | Multifunctional voltage-limiting surge protector |
| CN1641955A (en) * | 2005-01-02 | 2005-07-20 | 王文杰 | Intelligent surge protector |
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| CN101895105A (en) * | 2009-05-22 | 2010-11-24 | 上海科晗实业有限公司 | Short-circuit preventing device of voltage dependent resistor of large-discharge-current surge protector |
| CN101882544A (en) * | 2010-06-10 | 2010-11-10 | 厦门大恒科技有限公司 | Air switch with functions of delayed releasing and automatic reclosing |
| CN102082428A (en) * | 2010-12-23 | 2011-06-01 | 上海雷迅防雷技术有限公司 | Surge protection device with signal safely-acquiring function |
| CN202042442U (en) * | 2011-05-16 | 2011-11-16 | 法泰电器（江苏）股份有限公司 | Arc initiating device of circuit breaker |
| CN202206131U (en) * | 2011-08-17 | 2012-04-25 | 深圳市天顺电气有限公司 | Current-limiting type double-channel surge protection device |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026060A (en) * | 2014-11-08 | 2016-10-12 | 孙麓轩 | Novel surge protector |
| CN105576627A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576635A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN106099886A (en) * | 2014-11-08 | 2016-11-09 | 孙麓轩 | A kind of Novel electric surge protector |
| CN105576632A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576633A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105576636A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105633932A (en) * | 2014-11-08 | 2016-06-01 | 孙麓轩 | Novel surge protector |
| CN105576630A (en) * | 2014-11-08 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN105656013A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656005A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656010A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656009A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105656006A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
| CN105576639A (en) * | 2014-11-10 | 2016-05-11 | 孙麓轩 | Novel surge protection device |
| CN108766843A (en) * | 2018-09-03 | 2018-11-06 | 厦门大恒科技有限公司 | A kind of microswitch of tolerance lightning current |
| CN112350269A (en) * | 2019-08-07 | 2021-02-09 | 上海永继电气股份有限公司 | Back-up protector of surge protector |
| CN112350269B (en) * | 2019-08-07 | 2024-06-11 | 上海永继电气股份有限公司 | Backup protector of surge protector |
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| CN103855699B (en) | 2017-09-29 |
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