CN105633930A - Novel surge protector - Google Patents
Novel surge protector Download PDFInfo
- Publication number
- CN105633930A CN105633930A CN201410659897.9A CN201410659897A CN105633930A CN 105633930 A CN105633930 A CN 105633930A CN 201410659897 A CN201410659897 A CN 201410659897A CN 105633930 A CN105633930 A CN 105633930A
- Authority
- CN
- China
- Prior art keywords
- surge protector
- novel electric
- signal processing
- lightning protection
- protector according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention relates to a novel surge protector, comprising a lightning protection element, an over-current protection device, a thermal protection device and a housing, wherein the lightning protection element and the over-current protection device are connected in series to form a surge discharge circuit, the thermal protection device is arranged on an electrode of the lightning protection element. The novel surge protector also comprises a force detector, a signal processing device, a current limiter, a buffer displacement spring plate, an inertial device, an electromagnetic action mechanism, a linkage mechanism, and a normally open contact; wherein the force detector is connected with the signal processing device, the signal processing device is connected with the electromagnetic action mechanism; the electromagnetic action mechanism controls the buffer displacement spring plate to move; the buffer displacement spring plate is connected with the inertial device; the inertial device controls the normally open contact to act through the linkage mechanism; and the normally open contact is connected in series with the current limiter to form a bypass, the bypass is connected in parallel with the lightning protection element. The novel surge protector thoroughly solves the problems of action blind areas of a conventional thermal protection device and a conventional over-current protection device.
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 is the major reason causing 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, installation surge protector is one of important measures of lightning 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 overcurrent protection (internal or external) two kinds protection device in use; thermel protection device is used for protecting lightning protection component deterioration heating; overcurrent protective device is used for the lightning protection component puncture short preventing transient over-current or overvoltage from causing; overcurrent protection simultaneously is as a kind of back-up protection mode of Thermal protection, so can act as effective protective action in most of occasions.
But owing to conduction of heat is a relatively slow process, the sensitivity of thermel protection device is low, effective protection still can be played for slow temperature-rise period, but for low (in) steep temperature rise situation owing to causing under sustained over voltage condition in pressure system, Thermal protection trip gear can not this process of perception in time and there is not action, cause lightning protection component breakdown, power current enters SPD circuit, when this power frequency electric flow valuve is not reaching to the initiation value of overcurrent protective device, overcurrent protective device is without generation action, thus causing that SPD is on fire; If selecting little by the initiation value of overcurrent protective device, though can start, but being difficult to resist the impact of lightning current, causing that SPD cannot normally release lightning current.
In sum; there is serious action blind area in the overcurrent protective device of existing SPD and thermel protection device; SPD is by when the electric current in this region, and the SPD that thermel protection device and overcurrent protective device all can not be about to damage departs from main circuit, thus there is serious potential safety hazard.
In prior art " detecting device of device of surge protector " (patent No.: 200910069431.2) and " on-Line Monitor Device of a kind of Surge Protector " (patent No.: 200910069594.0), it is proposed that two kinds by measuring the method that electrodynamic mode detects the state of device of surge protector. wherein " detecting device of device of surge protector " (patent No.: 200910069431.2) proposes metal spring leaf is arranged on device of surge protector side or is connected by wire, pressure transducer is utilized to measure the deformation of metal spring leaf, thus learning the state of device of surge protector, without being connected between this method pressure transducer and metal spring leaf, measure inaccuracy, furthermore the mode of texturing of metal spring leaf is single, the signal source also making pressure sensor senses is very faint. " on-Line Monitor Device of a kind of Surge Protector " (patent No.: 200910069594.0) proposes to connect hardware with surge suppression device, the shape of hardware is bending, during when electric current by surge suppression device and hardware, electric current makes the hardware of bending become straight effect, consequent electric power passes through pressure sensor senses, and then learn the information of electric current and the degradation of surge suppression device, this measuring method certainty of measurement is higher, but hardware is sealed in surge passage, the ability of the surge current of releasing on surge suppression device is brought very big impact, cause that Surge Protector residual voltage raises, reduce the level of protection to its claimed equipment. and, in these two prior aries, detection for electric power physical quantity is only limitted to understand the current information flowing through device of surge protector or surge suppression device, thus understanding the state of device of surge protector or surge suppression device, my problem of above-mentioned " overcurrent protective device of existing SPD and thermel protection device exist serious action blind area " is not solved, the deficiency of this electric power method of testing will be modified and innovate by I, so that it can interpolate that the current type in surge protector circuit, the power current that overcurrent protective device and thermel protection device exist action blind area carries out instant disjunction.
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, the highly sensitive Novel electric surge protector for power-supply system, the basic action blind zone problem solving existing thermel protection device and overcurrent protective device.
The present invention is by the following technical solutions: the present invention is for the surge protector in power electronic circuits system, this surge protector includes lightning protection component, overcurrent protective device, thermel protection device and shell, described lightning protection component and overcurrent protective device series connection, constitute 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 includes force detector, signal processing apparatus, current limiter, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, normally opened contact; Described force detector is connected with signal processing apparatus, and signal processing apparatus is connected with electromagnetism actuating mechanism; Described electromagnetism action mechanism controls buffer displacement shell fragment moves; Described buffer displacement shell fragment is connected with inertial device; Described inertial device controls normally opened contact action through link gear; Described normally opened contact and current limiter are composed in series bypass, and bypass is connected in parallel on lightning protection component two ends.
Described force detector is arranged on surge and releases path side, releases path isolation with surge. After described normally opened contact Guan Bi, will not opening before overcurrent protective device disconnects, described normally opened contact also has reset switch again. Described lightning protection component, including varistor, discharge tube, TVS one or a combination set of; 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 the circuit combined by it, has the effect of restriction electric current; Described inertial device is flying wheel or weight or damping gear or air cock or delay circuit, just can move when being subject to lasting power.
Described force detector includes power supply, measures loop, insulating element, force transducer, measures back routing power and provides electric energy, has lasting single direction electric current in measuring loop; One end of insulating element is connected with measuring loop, and the other end is connected with force transducer, and the outfan of force transducer is connected with signal processing apparatus; Release with surge the parallel placement of path in described measurement loop.
The present invention utilizes the two parallel conductor electric current principles repelled each other attracting in the same direction, incorgruous. when having electric current to flow through on path is released in surge, because releasing with surge in the measurement loop in described force detector, path is parallel placement, and measurement loop has the electric current of lasting single direction, attracting in the same direction according to two parallel conductor electric currents, the incorgruous principle repelled each other, charged measurement loop must produce electric power (including suction and repulsion), and the size of lightning surge and power current, direction, rate of change, the parameters such as persistent period are different, cause its flow through surge release path time to measure loop produce electrodynamic size, the rate of change in direction is also completely different, force transducer is measured measuring the different electric power produced on loop by insulating element, and then be converted into different current signals and export to signal processing apparatus, by the conversion of signal processing apparatus, judge and amplify, current signal is inputed to electromagnetism actuating mechanism, electromagnetism actuating mechanism is caused to produce different actions. only when power frequency short circuit current flow continuously through surge release path time, the electric power information measuring loop generation exports to signal processing apparatus by force transducer, being sufficient for signal processing apparatus output makes the push rod of electromagnetism actuating mechanism continue the electric current ejected, thus the push rod of electromagnetism actuating mechanism continues to promote inertia displacement shell fragment, inertial device is caused to move, lightning surge is exceedingly fast due to time of origin, it makes the electric power that measurement loop produces be different from power frequency short circuit current and is measuring the electric power that loop produces, this electric power information is not enough so that signal processing apparatus exports lasting electric current, the push rod causing electromagnetism actuating mechanism is only understood moment ejection and is set back again, and inertial device can not be driven due to its effect of inertia.
The working method of this Novel electric surge protector: when lightning current flows through lightning protection component, time is very short, electric current is released rapidly, electromagnetism actuating mechanism push rod ejects rapidly and recovers, inertial device remains stationary as state due to effect of inertia, link gear Guan Bi bypass normally opened contact will not be driven, so that it is guaranteed that lightning current is released smoothly, when lightning protection component deteriorate power frequency leakage current reach certain value time, lightning protection component shell temperature also rises to certain altitude, and the intensification caused due to power frequency leakage current is the process of a slow gradual change, and thermel protection device will start, and disconnect at lightning protection component electrode place, when the power current that power system failure or other reasons cause flows through lightning protection component, electromagnetism actuating mechanism makes push rod continue to eject under the effect of electromagnetic force, push rod promotes buffer displacement shell fragment, inertial device can not rotate along buffer displacement shell fragment force direction due to effect of inertia, but now short circuit current does not disappear, electromagnetism actuating mechanism push rod still heads on buffer displacement shell fragment, after waiting time delay Millisecond �� t, inertial device rotates counterclockwise rapidly, drive link gear Guan Bi bypass normally opened contact, the bypass being now connected in parallel on lightning protection component two ends is switched on, power frequency short circuit current will not pass through lightning protection component, overcurrent protective device is arrived either directly through bypass, and have time enough to disconnect by overcurrent protective device, thus the lightning protection component being about to damage is departed from from main circuit.
It is a feature of the present invention that:
1. this Novel electric surge protector is by increasing the bypass being connected in parallel on lightning protection component two ends, 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, normally opened contact controls through link gear, inertial device, buffer displacement shell fragment, buffer displacement shell fragment is by electromagnetism action mechanism controls, the electric current that signal processing apparatus exports is depended in the action of electromagnetism actuating mechanism, and the electric current of signal processing apparatus output is according to the information of force detector output.
2. the lightning protection component of this Novel electric surge protector and force detector, signal processing apparatus, overcurrent protective device, thermel protection device, current limiter, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, normally opened contact can be integrated in one; it is loaded on housing; meet the electrical equipment requirement to surge protector discharge capacity, response time and three indexs of voltage protection level; enhance the reliability of equipment; different housings or be encapsulated in different modules can also be installed on combine, it is simple to install and use.
3. this Novel electric surge protector can not have overcurrent protective device.
4. the force detector of this Novel electric surge protector is arranged on surge and releases path side, releases path isolation with surge; Force detector includes power supply, measures loop, insulating element, force transducer, measures back routing power and provides electric energy, has lasting single direction electric current in measuring loop; One end of insulating element is connected with measuring loop, and the other end is connected with force transducer, and the outfan of force transducer is connected with signal processing apparatus; Release with surge the parallel placement of path in described measurement loop.
5. the force detector of this Novel electric surge protector is installed on surge and releases path side, releases path isolation with surge, does not affect surge and normally release, the level of protection that need to protect equipment is not affected by surge protector; Described force detector built-in power, measurement loop, insulating element, force transducer, force transducer directly measures the electric power on loop by insulating element, and certainty of measurement is high, and measurement result is accurate.
Accompanying drawing explanation
Fig. 1 is first embodiment of the present invention structural representation.
Fig. 2 is the inside enlarged drawing of the force detector of the present invention.
Fig. 3 is first embodiment of the present invention principle schematic.
Fig. 4 is second embodiment of the present invention principle schematic.
Fig. 5 is third embodiment of the present invention principle schematic.
Fig. 6 is protected effect schematic diagram of the present invention.
Specific embodiments
Below in conjunction with drawings and Examples, the present invention is further described:
As it can be seen, 0 is push rod, 1 is the first terminals; 2 is normally opened contact, and 3 is bypass, and 4 is flow plug; 5 is the second terminals, and 6 is overcurrent protective device, and 7 is lightning protection component; 8 is buffer displacement shell fragment; 9 is inertial device, and 10 is signal processing apparatus, and 11 is thermel protection device; 12 is electromagnetism actuating mechanism; 13 is link gear, and 14 is force detector, and 14-1 measures loop; 14-2 is power supply; 14-3 is force transducer, and 14-4 is insulating element, and 15 is that surge is released path; 16 is shell, and 17 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 (15), lightning protection component (7) and overcurrent protective device (6) are composed in series; Streak line is bypass (3), normally opened contact (2) and flow plug (4) are composed in series, and described bypass (3) is connected in parallel on lightning protection component (7) two ends; Described thermel protection device (11) is positioned on lightning protection component (7) electrode. Described force detector (14) is arranged on surge and releases path (15) side, and is connected with signal processing apparatus (10), and signal processing apparatus (10) is connected with electromagnetism actuating mechanism (12); Described signal processing apparatus (10) built-in power; The push rod (0) of described electromagnetism actuating mechanism (12) can promote buffer displacement shell fragment (8); Described buffer displacement shell fragment (8) is connected with inertial device (9); Described inertial device (9) controls normally opened contact (2) action through link gear (13) after rotating. In the present embodiment, inertial device (9) is flying wheel. Flying wheel is only subject to lasting power and just can rotate, namely the instantaneous ejection of push rod (0) that lightning surge causes is regained and flying wheel will not be promoted to rotate, continue the push rod (0) that causes of power current to continue to eject flying wheel just can be promoted to rotate, thus driving link gear (13) to close normally opened contact (2). Described normally opened contact has reset switch, is not drawn in detail in this figure.
Fig. 2 is the inside enlarged drawing of the force detector of the present invention, measures loop (14-1) and is provided electric energy by power supply (14-2), has lasting single direction electric current in measuring loop, one end of insulating element (14-4) is connected with measuring loop (14-1), and the other end is connected with force transducer (14-3), and the outfan of force transducer (14-3) is connected with signal processing apparatus (10), described measurement loop (14-1) is released with surge the parallel placement of path (15). the present invention utilizes two parallel conductor electric currents attracting in the same direction, the incorgruous principle repelled each other, when having electric current to flow through on path is released in surge, charged measurement loop must be produced electric power (including suction and repulsion) by it, and the size of lightning surge and power current, direction, rate of change, the parameters such as persistent period are different, cause its flow through surge release path time to measure loop produce electrodynamic size, the rate of change in direction is also completely different, force transducer (14-3) is measured measuring the upper different electric power produced in loop (14-1) by insulating element (14-4), and then be converted into different current signals and export to signal processing apparatus (10), conversion by signal processing apparatus (10), judge and amplify, current signal is inputed to electromagnetism actuating mechanism (12), electromagnetism actuating mechanism (12) is caused to produce different actions.
Fig. 3 is the principle schematic that Fig. 1 first embodiment is corresponding, wherein inertia displacement shell fragment (8) and link gear (13) are represented by dashed line, and reset switch (17) can control inertial device (9) makes normally opened contact (2) recover normally open.
Fig. 4 is this Novel electric surge protector the second embodiment principle schematic, overcurrent protective device (6) is not had in the surge protector of this embodiment, only include surge to release path (15), bypass (3) and force detector (14), signal processing apparatus (10), electromagnetism actuating mechanism (12), thermel protection device (11), elastic displacement shell fragment (8), inertial device (9), link gear (13), wherein inertia displacement shell fragment (8) and link gear (13) are represented by dashed line, reset switch (17) can control inertial device (9) makes normally opened contact (2) recover normally open. because surge protector is in use, if inside does not have built-in overcurrent protective device, so rear end must concatenate overcurrent protective device, therefore the Novel electric surge protector that the present embodiment describes can allow its timely action of external overcurrent protective device when there being power current to pass through, thus surge protector is departed from main circuit.
Fig. 5 is this Novel electric surge protector the 3rd embodiment principle schematic; in this embodiment, force detector (14), signal processing apparatus (10) are positioned at another one housing with overcurrent protective device (6); wherein inertia displacement shell fragment (8) and link gear (13) are represented by dashed line, and reset switch (17) can control inertial device (9) makes normally opened contact (2) recover normally open.
Fig. 1, Fig. 3 are the embodiments that lightning protection component (7) can be integrated in one with force detector (14), signal processing apparatus (10), overcurrent protective device (6), thermel protection device (11), current limiter (4), buffer displacement shell fragment (8), inertial device (9), electromagnetism actuating mechanism (12), link gear (13), normally opened contact (2); Fig. 4, Fig. 5 are that lightning protection component (7) can also be installed on different housings or be encapsulated in different modules the embodiment combined from force detector (14), signal processing apparatus (10), overcurrent protective device (6), thermel protection device (11), current limiter (4), buffer displacement shell fragment (8), inertial device (9), electromagnetism actuating mechanism (12), link gear (13), normally opened contact (2).
Fig. 6 is protected effect schematic diagram of the present invention, power frequency short circuit current is divided into three parts: little power current refers to the current range that thermel protection device can start; Big power frequency short circuit current refers to the current range that overcurrent protective device can start; Marginal, it is 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 the technical scheme equivalents under the design philosophy without departing from the present invention, all within protection scope of the present invention.
Claims (11)
1. a 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 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 includes force detector, signal processing apparatus, current limiter, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, normally opened contact; Described force detector is connected with signal processing apparatus, and signal processing apparatus is connected with electromagnetism actuating mechanism; Described electromagnetism action mechanism controls buffer displacement shell fragment moves; Described buffer displacement shell fragment is connected with inertial device; Described inertial device controls normally opened contact action through link gear; Described normally opened contact and current limiter are composed in series bypass, and bypass is connected in parallel on lightning protection component two ends.
2. a kind of Novel electric surge protector according to claim 1, it is characterised in that: this Novel electric surge protector can not have overcurrent protective device.
3. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: described force detector is installed on surge and releases path side, releases path insulation with surge.
4. a kind of Novel electric surge protector according to claim 1,2, it is characterized in that: described force detector includes power supply, measures loop, insulating element, force transducer, measure back routing power and electric energy is provided, in measuring loop, have lasting single direction electric current; One end of insulating element is connected with measuring loop, and the other end is connected with force transducer, and the outfan of force transducer is connected with signal processing apparatus; Release with surge the parallel placement of path in described measurement loop.
5. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: after described normally opened contact Guan Bi, will not open again before overcurrent protective device disconnects.
6. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: described normally opened contact has reset switch.
7. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: described inertial device is flying wheel or weight or damping gear or air cock or delay circuit.
8. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: described lightning protection component and force detector, signal processing apparatus, overcurrent protective device, thermel protection device, current limiter, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, normally opened contact may be located at same housing, it is also possible to be installed on different housings or be encapsulated in different modules and combine.
9. a kind of Novel electric surge protector 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 the circuit combined by it.
10. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: described overcurrent protective device can be fuse or chopper.
11. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: described lightning protection component can be electronic devices such as varistor, discharge tube, TVS one or a combination set of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659897.9A CN105633930A (en) | 2014-11-08 | 2014-11-08 | Novel surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659897.9A CN105633930A (en) | 2014-11-08 | 2014-11-08 | Novel surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105633930A true CN105633930A (en) | 2016-06-01 |
Family
ID=56048599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410659897.9A Pending CN105633930A (en) | 2014-11-08 | 2014-11-08 | Novel surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105633930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942964A (en) * | 2019-12-16 | 2020-03-31 | 新昌县黄达机械有限公司 | A distribution device that becomes more meticulous for intelligent manufacturing equipment |
Citations (4)
| 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 |
| CN101944729A (en) * | 2009-07-06 | 2011-01-12 | 孙巍巍 | Surge protector with detection device |
| CN203086125U (en) * | 2012-12-05 | 2013-07-24 | 孙巍巍 | Novel surge protection device |
| CN204391713U (en) * | 2014-11-08 | 2015-06-10 | 孙麓轩 | A kind of Novel electric surge protector |
-
2014
- 2014-11-08 CN CN201410659897.9A patent/CN105633930A/en active Pending
Patent Citations (4)
| 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 |
| CN101944729A (en) * | 2009-07-06 | 2011-01-12 | 孙巍巍 | Surge protector with detection device |
| CN203086125U (en) * | 2012-12-05 | 2013-07-24 | 孙巍巍 | Novel surge protection device |
| CN204391713U (en) * | 2014-11-08 | 2015-06-10 | 孙麓轩 | A kind of Novel electric surge protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942964A (en) * | 2019-12-16 | 2020-03-31 | 新昌县黄达机械有限公司 | A distribution device that becomes more meticulous for intelligent manufacturing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103855695A (en) | Novel surge protection device | |
| CN204391713U (en) | A kind of Novel electric surge protector | |
| CN204391728U (en) | A kind of Novel electric surge protector | |
| CN204538679U (en) | A kind of Novel electric surge protector | |
| CN105633930A (en) | Novel surge protector | |
| CN204967253U (en) | Novel surge protection device (SPD) | |
| CN204391729U (en) | A kind of Novel electric surge protector | |
| CN105576632A (en) | Novel surge protection device | |
| CN204391708U (en) | A kind of Novel electric surge protector | |
| CN204391709U (en) | A kind of Novel electric surge protector | |
| CN204391712U (en) | A kind of Novel electric surge protector | |
| CN204538681U (en) | A kind of Novel electric surge protector | |
| CN105656007A (en) | Novel surge protector | |
| CN204391720U (en) | A kind of Novel electric surge protector | |
| CN204538686U (en) | A kind of Novel electric surge protector | |
| CN204391723U (en) | A kind of Novel electric surge protector | |
| CN204391715U (en) | A kind of Novel electric surge protector | |
| CN204391703U (en) | A kind of Novel electric surge protector | |
| CN204538682U (en) | A kind of Novel electric surge protector | |
| CN204391710U (en) | A kind of Novel electric surge protector | |
| CN204391731U (en) | A kind of Novel electric surge protector | |
| CN204391711U (en) | A kind of Novel electric surge protector | |
| CN204391721U (en) | A kind of Novel electric surge protector | |
| CN204391718U (en) | A kind of Novel electric surge protector | |
| CN204391702U (en) | A kind of Novel electric surge protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |
|
| RJ01 | Rejection of invention patent application after publication |