CN106067671A - A kind of Novel electric surge protector - Google Patents
A kind of Novel electric surge protector Download PDFInfo
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- CN106067671A CN106067671A CN201410660039.6A CN201410660039A CN106067671A CN 106067671 A CN106067671 A CN 106067671A CN 201410660039 A CN201410660039 A CN 201410660039A CN 106067671 A CN106067671 A CN 106067671A
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- surge protector
- novel electric
- lightning protection
- protective device
- protection component
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Abstract
The present invention relates to a kind of Novel electric surge protector, including lightning protection component, overcurrent protective device, thermel protection device and shell, described lightning protection component and overcurrent protective device series connection, constitute surge and release path, described thermel protection device is positioned on lightning protection component electrode；This Novel electric surge protector this Novel electric surge protector also includes judging-driving unit, current limiter, link gear, normally opened contact；Described judging-driving unit is connected with lightning protection component, overcurrent protective device, and composition surge is released path together；Described normally opened contact and current limiter are composed in series bypass, and bypass is connected in parallel on judging-driving unit and lightning protection component two ends or is parallel to lightning protection component two ends.This Novel electric surge protector solves the action blind zone problem of existing thermel protection device and overcurrent protective device at all.
Description
Technical field
The invention belongs to the surge protection technical field of electronic electric equipment.
Background technology
Thunder and lightning is a kind of special weather phenomenon caused of aloft being discharged by charged cloud.Thunder and lightning causes electronic equipment to damage
Major reason, it threatens the safety of the every field electronic informations such as building, railway, civil aviaton, communication, industry control, military affairs surely
Fixed operation.Installing surge protector on the metallic circuits such as the power line being connected with electronic equipment, holding wire and control line is thunder
One of important measures of electricity protection.Surge protector has been widely used in various field, has important effect in lightning protection.
The quality of its state then directly affects its lightning protection effect, thus the safety of protected equipment is brought hidden danger.
Present stage SPD is generally of Thermal protection and two kinds of protection devices of overcurrent protection (internal or external), Thermal protection in use
Device is used for protecting lightning protection component deterioration heating, and overcurrent protective device is used for the lightning protection device preventing transient over-current or overvoltage from causing
Part puncture short, overcurrent protection simultaneously is as a kind of back-up protection mode of Thermal protection, so can act as in most of occasions
Effective protective action.
But owing to conduction of heat is a relatively slow process, the sensitivity of thermel protection device is low, still may be used for slow temperature-rise period
Play effective protection, but for low (in) in pressure system due to the steep temperature rise situation caused under sustained over voltage condition, heat
Protection trip gear can not this process of perception in time and there is not action, cause lightning protection component breakdown, power current entrance SPD
Circuit, when this power frequency electric flow valuve is not reaching to the initiation value of overcurrent protective device, overcurrent protective device also will not occur action,
Thus cause SPD on fire；If selecting little by the initiation value of overcurrent protective device, though can start, but it is difficult to resist the impact of lightning current,
SPD is caused cannot normally to release lightning current.
In sum, there is serious action blind area in the overcurrent protective device of existing SPD and thermel protection device, and SPD is by this
During the electric current in region, the SPD that thermel protection device and overcurrent protective device all can not damage departs from main circuit, thus occurs tight
The potential safety hazard of weight.
Summary of the invention
In order to effectively solve problem above of the prior art, the present invention proposes a kind of easy for installation and dependable performance, highly sensitive
The Novel electric surge protector for power-supply system, the basic action blind area solving existing thermel protection device and overcurrent protective device is asked
Topic.
The present invention is by the following technical solutions: the present invention is the surge protector in power electronic circuits system, and this surge is protected
Protect device and include lightning protection component, overcurrent protective device, thermel protection device and shell, described lightning protection component and overcurrent protective device series connection,
Constituting surge to release path, described thermel protection device is positioned on lightning protection component electrode, it is characterised in that: this Novel electric surge protector
Also include judging-driving unit, current limiter, link gear, normally opened contact；Described judging-driving unit and lightning protection component, excessively stream
Protection device is connected, and composition surge is released path together；Described normally opened contact and current limiter are composed in series bypass, and bypass is connected in parallel on
Judging-driving unit and lightning protection component two ends or be parallel to lightning protection component two ends.
Described judging-driving unit is made up of pair of discharge electrodes and an electric magnet, and sparking electrode is in parallel with electric magnet；Described put
Electricity electrode can be the electrode that hemispherical ledge forms in opposite directions, it is also possible to be other shaped projections split-phase electrode to composition,
Or discharge tube.After described normally opened contact Guan Bi, will not open before overcurrent protective device disconnects, described normally opened contact also has again
Reset switch.Described lightning protection component, including one or a combination set of varistor, discharge tube, TVS；Described overcurrent protective device
Can be fuse or chopper；Described current limiter can be one of electronic devices such as resistance, inductance, electric capacity or by a combination thereof
The circuit become, has the effect limiting electric current.Described link gear can have various ways, is used for when electric magnet push rod is upspring,
Normally opened contact is made to close.
Described judging-driving unit is made up of sparking electrode in parallel and electric magnet, and it is released the current type of path to flowing through surge
There is arbitration functions, lightning surge and power current can be distinguished；The push rod of electric magnet can drive link gear simultaneously, thus
Guan Bi normally opened contact.
The working method of this Novel electric surge protector:
When lightning surge flows through, its current value is the highest to the rate of change of time, the line on the electric magnet of described judging-driving unit
Circle has certain inhibitory action to this high frequency electric, causes only small part electric current to flow through coil, meeting between two sparking electrodes soon
Moment produces the highest voltage, is punctured two electrode moments, and lightning current runs through；Then flow through the least a portion of electric current of coil
Also electric magnet push rod can be made to eject rapidly and regain, but displacement now can not promote link gear, it is ensured that lightning surge
Release smoothly.
When power system failure, power current flow through, lightning protection component will lose efficacy short circuit time, it is judged that electric magnet in driving means
Coil flows into power current, makes push rod eject under the effect of electromagnetic force, and the displacement and the dynamics that eject be enough to drive gear
Structure moves, and makes normally opened contact close, and connects bypass；Owing to bypass is in parallel with judging-driving unit and lightning protection component, so power frequency
Electric current will flow through from bypass and directly arrive overcurrent protective device, make overcurrent protective device action, cut off SPD path in time, prevent
The too high lightning protection component of temperature on fire (push rod eject displacement and dynamics with flow through the size of current of coil, the thickness of coil, line
Design within the number of turn of circle and electric magnet is relevant, and can the ejection that decide push rod promote tripping mechanism, this series of ginseng
Numerical value is by calculated).
When lightning protection component deterioration power frequency leakage current reaches certain value, lightning protection component shell temperature also rises to certain altitude, is positioned at anti-
Thermel protection device on thunder element electrode is by action, thus cuts off the lightning protection component that will damage.
To sum up, it is judged that driving means has judgement to lightning surge and power current, connection can be driven when power current flows through
Motivation structure, Guan Bi normally opened contact connects bypass, so that overcurrent protective device action disjunction surge protector path, and then solve
Existing overcurrent protective device and the thermel protection device action blind zone problem to power current.
It is a feature of the present invention that:
1. this Novel electric surge protector increases in path is released in surge and may determine that current type and drive link gear Guan Bi often
Open the judging-driving unit of contact, add again and be connected in parallel on judging-driving unit and lightning protection component two ends or the side at lightning protection component two ends
Road, solves the action blind zone problem of thermel protection device and overcurrent protective device.Bypass is composed in series by normally opened contact and flow plug,
Whether normally opened contact is depended on by the magnet control in judging-driving unit, electric magnet action by link gear control, link gear
The current type flow through in power supply leakage path, this current type can be by sparking electrode in parallel in judging-driving unit and electromagnetism
Ferrum makes a distinction response.
2. the lightning protection component of this Novel electric surge protector and judging-driving unit, overcurrent protective device, thermel protection device, current limiter,
Link gear, normally opened contact, reset switch can be integrated in one, and are loaded on housing, meet electrical equipment and lead to surge protector
Current capacity, response time and the requirement of three indexs of voltage protection level, enhance the reliability of equipment, it is also possible to be installed on not
Combine with housing or be encapsulated in different modules, it is simple to install and use.
3. this Novel electric surge protector can not have overcurrent protective device.
4. the judging-driving unit of this Novel electric surge protector is made up of pair of discharge electrodes and an electric magnet, sparking electrode and electricity
Magnet is in parallel；Described sparking electrode can be the electrode that hemispherical ledge forms in opposite directions, it is also possible to be other shaped projections
Split-phase is to the electrode of composition, or discharge tube.Described judgement device of speeding has judgement to flowing through the release current type of path of surge
Function, can distinguish lightning surge and power current；The push rod of electric magnet can drive link gear simultaneously, thus closes normally opened
Contact.
Accompanying drawing explanation
Fig. 1 is first embodiment of the present invention structural representation.
Fig. 2 is the judging-driving unit sectional view of the present invention.
Fig. 3 is the judging-driving unit axonometric chart of the present invention.
Fig. 4 is first embodiment of the present invention principle schematic.
Fig. 5 is second embodiment of the present invention principle schematic.
Fig. 6 is third embodiment of the present invention principle schematic.
Fig. 7 is fourth embodiment of the present invention principle schematic.
Fig. 8 is protected effect schematic diagram of the present invention.
Specific embodiments
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
As it can be seen, 0 is push rod, 1 is the first terminals, and 2 is judging-driving unit, and 3 is sparking electrode, and 4 is electric magnet,
5 is the second terminals, and 6 is overcurrent protective device, and 7 is lightning protection component, and 8 is thermel protection device, and 9 is flow plug, and 10 is normal
Opening contact, 11 is link gear, and 12 is shell, and 13 is that surge is released path, and 14 is bypass, and 15 is reset switch.
Fig. 1 is first embodiment of the present invention structural representation, and in figure, solid black lines is that surge is released path (13), judgement drive
Dynamic device (2), lightning protection component (7) and overcurrent protective device (6) are composed in series；Streak line is bypass (14), normally opened touch
Point (10) and flow plug (9) are composed in series, and described bypass (14) is connected in parallel on judging-driving unit (2) and lightning protection component (7)
Two ends；Described thermel protection device (8) is positioned on lightning protection component (7) electrode.Reset switch is not drawn in this figure.Described sentence
Disconnected driving means is made up of pair of discharge electrodes and an electric magnet, and sparking electrode is in parallel with electric magnet.The present embodiment is only given and puts
Electricity electrode is the embodiment that hemispherical ledge forms in opposite directions, and other shaped projections split-phase is to the electrode of composition, or discharge tube
Situation here is omitted.Mechanism enforcement illustration only provides bypass (14) and is parallel to judging-driving unit (2) and lightning protection unit
The situation at part (7) two ends, the principle embodiment that bypass (14) is parallel to lightning protection component (7) two ends is real as the 3rd at Fig. 6
Execute example to be given.
When lightning surge releases path (13) by power supply, sparking electrode (3) is by transient switching, and lightning surge is through lightning protection unit
Part (7) and overcurrent protective device (6) are released, and electric magnet (4) is upper only by few portion of electrical current, and push rod (0) ejects
Displacement is not enough to promote link gear (11) action；When power current flow through surge release path (13) time, sparking electrode
(3) both end voltage is not enough so that it punctures conducting, and electric current flows through electric magnet (4) and makes push rod (0) eject, now push rod (4)
The displacement ejected be enough to promote link gear (11) to rotate along the direction of arrow in the figure, makes normally opened contact (2) close, enters
And turn on bypass (14), power current is introduced directly into overcurrent protective device (6) by bypass, makes overcurrent protective device (6) move
Make, disjunction lightning protection component (7)；When power frequency leakage current is gradually increased, lightning protection component (7) temperature slowly rises, and is positioned at lightning protection unit
Thermel protection device (8) on part (7) electrode is by action, thus cuts off the lightning protection component (7) that will damage.
Fig. 2, Fig. 3 are sectional view and the axonometric chart of the judging-driving unit of the present invention, it is judged that driving means is by pair of discharge electrodes
With an electric magnet composition, sparking electrode is in parallel with electric magnet；Described sparking electrode can be that hemispherical ledge forms in opposite directions
Electrode, it is also possible to be other shaped projections split-phase to the electrode of composition, or discharge tube.It is half that this figure only provides sparking electrode
The embodiment that spherical projection forms in opposite directions, other scheme repeats no more.
Fig. 4 is the principle schematic that Fig. 1 first embodiment is corresponding, and it is extensive that reset switch (15) can control normally opened contact (10)
Multiple normally open.
Fig. 5 is this Novel electric surge protector the second embodiment principle schematic, does not has stream to protect in the surge protector of this embodiment
Protection unit (6), only include surge release path (13), bypass (14) and thermel protection device (8), link gear (11),
Wherein reset switch (15) can control normally opened contact (10) and recover normally open.Because surge protector is in use, as
Fruit is internal does not has built-in overcurrent protective device, then rear end must concatenate overcurrent protective device, and therefore the present embodiment description is novel
Surge protector can allow its timely action of external overcurrent protective device when there being power current to pass through, thus by surge protector
Depart from main circuit.
Fig. 6 is this Novel electric surge protector the 3rd embodiment principle schematic, bypasses (14) and be parallel to lightning protection unit in this embodiment
Part (7) two ends, reset switch (15) can control normally opened contact (10) and recover normally open.
Fig. 7 is this Novel electric surge protector the 4th embodiment principle schematic, judging-driving unit (2) and mistake stream in this embodiment
Protection device (6) is positioned at another housing, and reset switch (15) can control normally opened contact (10) and recover normally open.
Fig. 1, Fig. 4, Fig. 6 are lightning protection component (7) and judging-driving unit (2), overcurrent protective device (6), Thermal protection dress
Put (8), current limiter (9), reality that link gear (11), normally opened contact (10), reset switch (15) can be integrated in one
Execute example；Fig. 5, Fig. 7 be lightning protection component (7) with judging-driving unit (2), overcurrent protective device (6), thermel protection device (8),
Current limiter (9), link gear (11), normally opened contact (10), reset switch (15) can also be installed on different housings or envelope
It is contained in different modules the embodiment combined.
Fig. 8 is protected effect schematic diagram of the present invention, power frequency short circuit current is divided into three parts: little power current refers to Thermal protection
The current range that device can start；Big power frequency short circuit current refers to the current range that overcurrent protective device can start；And between
Between the two be then the power frequency short circuit current action blind area of existing surge protector protection device, abbreviation action blind area.
Utilize technical scheme, reach corresponding technique effect, or under the design philosophy without departing from the present invention
Technical scheme equivalents, all within protection scope of the present invention.
Claims (10)
1. a Novel electric surge protector, including lightning protection component, overcurrent protective device, thermel protection device and shell, described anti-
Thunder element and overcurrent protective device series connection, constitute surge and release path, and described thermel protection device is positioned on lightning protection component electrode,
It is characterized in that: this Novel electric surge protector also includes judging-driving unit, current limiter, link gear, normally opened contact；Institute
Stating judging-driving unit to connect with lightning protection component, overcurrent protective device, composition surge is released path together；Described normally opened contact
Being composed in series bypass with current limiter, bypass is connected in parallel on judging-driving unit and lightning protection component two ends or is parallel to lightning protection component two ends.
A kind of Novel electric surge protector the most according to claim 1, it is characterised in that: this Novel electric surge protector is permissible
There is no overcurrent protective device.
A kind of Novel electric surge protector the most according to claim 1 and 2, it is characterised in that: described judging-driving unit
Being made up of pair of discharge electrodes and an electric magnet, sparking electrode is in parallel with electric magnet.
A kind of Novel electric surge protector the most according to claim 3, it is characterised in that: described sparking electrode can be half
The electrode that spherical projection forms in opposite directions, it is also possible to be other shaped projections split-phase electrode to composition, or discharge tube.
A kind of Novel electric surge protector the most according to claim 1 and 2, it is characterised in that: described normally opened contact closes
After, will not open again before overcurrent protective device disconnects.
A kind of Novel electric surge protector the most according to claim 1 and 2, it is characterised in that: described normally opened contact has
Reset switch.
A kind of Novel electric surge protector the most according to claim 1 and 2, it is characterised in that: described lightning protection component and judgement
Driving means, overcurrent protective device, thermel protection device, current limiter, link gear, normally opened contact, reset switch can positions
In same housing, it is also possible to be installed on different housings or be encapsulated in different modules and combine.
A kind of Novel electric surge protector the most according to claim 1 and 2, it is characterised in that: described current limiter can be
One of electronic devices such as resistance, inductance, electric capacity or by the circuit of a combination thereof.
A kind of Novel electric surge protector the most according to claim 1 and 2, it is characterised in that: described overcurrent protective device
Can be fuse or chopper.
A kind of Novel electric surge protector the most according to claim 1 and 2, it is characterised in that: described lightning protection component can
To be one or a combination set of electronic devices such as varistor, discharge tube, TVS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660039.6A CN106067671A (en) | 2014-11-08 | 2014-11-08 | A kind of Novel electric surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660039.6A CN106067671A (en) | 2014-11-08 | 2014-11-08 | A kind of Novel electric surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106067671A true CN106067671A (en) | 2016-11-02 |
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ID=57419572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410660039.6A Pending CN106067671A (en) | 2014-11-08 | 2014-11-08 | A kind of Novel electric surge protector |
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| CN (1) | CN106067671A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0860927A1 (en) * | 1997-02-12 | 1998-08-26 | Felten & Guilleaume Austria AG | Protection circuit arrangement for surge arrester |
| US6876533B1 (en) * | 2002-06-28 | 2005-04-05 | A.C. Data Systems Of Idaho, Inc. | Surge suppressor enclosure and fusing system |
| CN101499653A (en) * | 2008-11-07 | 2009-08-05 | 中国电力科学研究院 | Method for protecting electrical appliance by over-current side path |
| CN103474952A (en) * | 2013-09-24 | 2013-12-25 | 武汉微创元电子科技有限责任公司 | Short-circuit protection device for power frequency current and lightning surge automatic selection channel |
| CN103779857A (en) * | 2012-10-24 | 2014-05-07 | 孙巍巍 | Novel surge protection device |
| CN103855673A (en) * | 2012-12-05 | 2014-06-11 | 孙巍巍 | Novel surge protection device |
| CN204886165U (en) * | 2014-11-08 | 2015-12-16 | 孙麓轩 | Novel surge protector |
-
2014
- 2014-11-08 CN CN201410660039.6A patent/CN106067671A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0860927A1 (en) * | 1997-02-12 | 1998-08-26 | Felten & Guilleaume Austria AG | Protection circuit arrangement for surge arrester |
| US6876533B1 (en) * | 2002-06-28 | 2005-04-05 | A.C. Data Systems Of Idaho, Inc. | Surge suppressor enclosure and fusing system |
| CN101499653A (en) * | 2008-11-07 | 2009-08-05 | 中国电力科学研究院 | Method for protecting electrical appliance by over-current side path |
| CN103779857A (en) * | 2012-10-24 | 2014-05-07 | 孙巍巍 | Novel surge protection device |
| CN103855673A (en) * | 2012-12-05 | 2014-06-11 | 孙巍巍 | Novel surge protection device |
| CN103474952A (en) * | 2013-09-24 | 2013-12-25 | 武汉微创元电子科技有限责任公司 | Short-circuit protection device for power frequency current and lightning surge automatic selection channel |
| CN204886165U (en) * | 2014-11-08 | 2015-12-16 | 孙麓轩 | Novel surge protector |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161102 |