CN105633934A - Novel surge protector - Google Patents
Novel surge protector Download PDFInfo
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- CN105633934A CN105633934A CN201410669097.5A CN201410669097A CN105633934A CN 105633934 A CN105633934 A CN 105633934A CN 201410669097 A CN201410669097 A CN 201410669097A CN 105633934 A CN105633934 A CN 105633934A
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- surge protector
- overcurrent protective
- protective device
- novel electric
- magnetic field
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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 magnetic field induction device, a judgment device, a breaking execution mechanism, a breaking switch, a signal detector, a signal transmission line, an over-current protection device detector, a data unit, a connecting line and a connecting terminal. The novel surge protector thoroughly solves the potential safety hazard problems caused by action blind areas of a conventional thermal protection device and a conventional over-current protection device, unknowable action situations of the over-current protection device and the thermal protection device, and unknowable work state of a lightning protection element.
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, and 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.
And; the thermel protection device of existing surge protector and the operating state of overcurrent protective device can not be grasped in time by user; the use state of surge protector internal lighting protection element can not be known by user simultaneously; thus result in and can not safeguard surge protector timely or change inner member or device, cause thunderbolt or other accidents.
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; Overcurrent protective device can not be learnt by user in time with the action situation of thermel protection device and the working condition of lightning protection component simultaneously, brings serious potential safety hazard equally.
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 Novel electric surge protector for power-supply system; the basic working condition solving existing thermel protection device and the action blind area of overcurrent protective device and overcurrent protective device, the action situation of thermel protection device and lightning protection component is unknowable, the security hidden trouble brought.
The present invention is by the following technical solutions: the present invention is for the surge protector in power electronic circuits system, 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, and described thermel protection device is positioned on lightning protection component electrode. Present invention additionally comprises magnetic field induction device, judgment means, disjunction actuator, section breaker, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, connection terminal; Described magnetic field induction device is arranged on surge and releases around path, and is connected with judgment means input; Described judgment means outfan is connected with disjunction actuator; Described disjunction actuating mechanism controls section breaker action; Described section breaker is normally closed and is series at surge and releases in path; Described signal sensor be installed on lightning protection component electrode surface or near, or be installed on surge and release near path, be connected with data cell by signal transmssion line; Described overcurrent protective device detector is parallel to overcurrent protective device two ends, is connected with data cell through signal transmssion line; Described data cell is connected with being connected terminal by connecting line.
Described signal sensor can be installed on lightning protection component electrode surface or near, the detection temperature of lightning protection component, magnetic field, the signal such as infrared; Can also being installed on surge and release near path, detection surge is released the signals such as the temperature of path, magnetic field, infrared, electric power; Signal sensor can also detect the action situation of thermel protection device. Described overcurrent protective device detector can detect the state of overcurrent protective device, and exports to data cell through signal transmssion line. Described data cell built-in power, or obtain power supply by connecting line from connecting terminal outer.
Heretofore described judgment means built-in power and data processing unit; Described break-up device can control section breaker action by the mode of mechanical linkage or electromagnetic mode or the two combination; Described section breaker has can make it recover the reset unit of normally off; Described overcurrent protective device can be fuse or chopper; Described lightning protection component, including varistor, discharge tube, TVS one or a combination set of.
The core mechanism of the present invention is magnetic field induction device and judgment means. when having electric current to flow through on path is released in surge, magnetic field induction device can sense magnetic field produced by this electric current, and the field signal sensed is transferred to, by the input of judgment means, the data processing unit that judgment means is built-in, described data processing unit or judge the type (power current in surge current, little power current, action blind area, the magnetic field produced more than the power current of action blind area are different) in magnetic field according to physical quantitys such as the size in magnetic field, direction, rate of change, persistent period, or the type flowing through the electric current of surge leadage circuit after field signal is converted to current signal, is judged according to physical quantitys such as the size of this electric current, direction, rate of change, persistent period. the magnetic field that if judged result is less power current to be produced (or being less power current), then disjunction actuator is failure to actuate, section breaker does not turn off, protected by thermel protection device, now signal sensor is able to detect that thermel protection device action, this signal can be sent to data cell through data line, data cell is connected with external equipment by connecting line, connection terminal, and described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc., the magnetic field that if judged result is the power current in action blind area to be produced (or being the power current in action blind area), then disjunction actuator action, section breaker disconnect, thus surge is released, path disconnects, now overcurrent protective device detector will detect that overcurrent protective device disconnects, this signal can be sent to data cell through data line, data cell sends signal by connecting the sub-external equipment of alignment link, and described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc., if judged result is the magnetic field (or being the power current more than action blind area) produced more than the power current of action blind area, then disjunction actuator (7) is failure to actuate, section breaker does not turn off, directly protected by overcurrent protective device, now overcurrent protective device detector will detect that overcurrent protective device disconnects, this signal can be sent to data cell through data line, data cell sends signal by connecting the sub-external equipment of alignment link, and described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc., the magnetic field that if judged result is surge current to be produced (or being surge current), then normally released by lightning protection component and overcurrent protective device surge in series path of releasing, now signal sensor is able to detect that lightning protection component itself or surge are released temperature on path, magnetic field, infrared, the change of the signals such as electric power, thus analyzing lightning current size, the information such as waveform, the record thunderbolt time, this type of information is sent to data cell through data line, data cell passes through connecting line, connect terminal to be connected with external equipment, described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc.
In above Four processes, the signal sensor signal such as temperature, magnetic field, infrared, electric power on path of all lightning protection component that detect or surge being released is sent to data cell through data line, data cell sends signal by connecting the sub-external equipment of alignment link, to learn the use state of lightning protection component, life-span, event record. Described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc.
It is a feature of the present invention that:
1. this Novel electric surge protector is provided with section breaker on path is released in surge, by effective cooperation of magnetic field induction device, judgment means, disjunction actuator and section breaker, solves the action blind zone problem of thermel protection device and overcurrent protective device;
2. the lightning protection component of this Novel electric surge protector, magnetic field induction device, overcurrent protective device, thermel protection device, judgment means, disjunction actuator, section breaker, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, connect terminal can be integrated in one, it is loaded on housing, meet electrical equipment to surge protector discharge capacity, the requirement of response time and three indexs of voltage protection level, enhance the reliability of equipment, also can be contained in different modules to combine and collectively form the present invention, it is easily installed use,
3. the disjunction actuator in this Novel electric surge protector according to the judged result action of judgment means or is failure to actuate, and needed for disjunction actuator, energy can be supplied by judgment means, it is possible to configures independent power supply, it is possible to supplied by power line;
4. the present invention can not have overcurrent protective device;
5. the connection terminal of this Novel electric surge protector can be connected with external equipment, and signal signal sensor and overcurrent protective device detector detected sends to external equipment, makes monitoring personnel grasp the various states of surge protector. Described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc. Described data acquisition equipment can gather the information of multiple surge protector, and the described network switching equipment can connect multiple data acquisition equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is first embodiment of the present invention principle schematic.
Fig. 3 is second embodiment of the present invention principle schematic.
Fig. 4 is third embodiment of the present invention principle schematic.
Fig. 5 is protected effect schematic diagram of the present invention.
Fig. 6 is group network system first embodiment schematic diagram of the present invention.
Fig. 7 is group network system of the present invention second embodiment schematic diagram.
Specific embodiments
Below in conjunction with drawings and Examples, the present invention is further described:
As shown in the figure, 1 is that surge is released path, 2 is magnetic field induction device, 3 is lightning protection component, 4 is overcurrent protective device, 5 is data processing unit, 6 is judgment means, 7 is disjunction actuator, 8 is section breaker, 9 is thermel protection device, 10 is shell, 11 is signal sensor, 12 is signal transmssion line 1, 13 is overcurrent protective device detector, 14 is signal transmssion line 2, 15 is data cell, 16 is connecting line, 17 is connect terminal, 18 is this Novel electric surge protector, 19 is data acquisition equipment, 20 is monitoring device, 21 is connecting line 1, 22 is data wire, 23 is the network switching equipment, 24 is the reset unit of section breaker, aa ' is the input of judgment means, bb ' is the outfan of judgment means.
Fig. 1 is this Novel electric surge protector first embodiment, this Novel electric surge protector has an overcurrent protective device (4) in this embodiment, and described lightning protection component (3) and overcurrent protective device (4) surge in series are released path (1); Described magnetic field induction device (2) is arranged on surge and releases path (1) around, and is connected with judgment means (6) input (aa '); Described judgment means (6) outfan (bb ') it is connected with disjunction actuator (7); Described thermel protection device (9) is positioned on lightning protection component (3) electrode; Described signal sensor (11) is installed on lightning protection component (3) surface, the temperature of detection lightning protection component (3), magnetic field, the signal such as infrared, signal sensor (11) also detects the action situation of thermel protection device (9) simultaneously, and exports to data cell (15) through signal transmssion line 1 (12); Described overcurrent protective device detector (13) is connected in parallel on overcurrent protective device (4) two ends, the state of detection overcurrent protective device (4), and export to data cell (15) through signal transmssion line 2 (14); Described data cell (15) built-in power, it is also possible to terminal (17) is outside obtains power supply from connecting by connecting line (16).
When having electric current to flow through on path (1) is released in surge, magnetic field induction device (2) can sense magnetic field produced by this electric current, and the field signal sensed is transferred to, by the input of judgment means (6) (aa '), the data processing unit (5) that judgment means (6) is built-in, data processing unit (5) or the size according to magnetic field, direction, rate of change, the physical quantitys such as persistent period judge the type (surge current in magnetic field, little power current, power current in action blind area, the magnetic field produced more than the power current of action blind area is different), or the type flowing through the electric current of surge leadage circuit after field signal is converted to current signal, is judged according to physical quantitys such as the size of this electric current, direction, rate of change, persistent period. the magnetic field that if judged result is less power current to be produced (or being less power current), then disjunction actuator (7) is failure to actuate, section breaker (8) does not turn off, protected by thermel protection device (9), now signal sensor (11) is able to detect that thermel protection device (9) action, this signal can be sent to data cell (15) through signal transmssion line 1 (12), data cell (15) is by connecting line (16), connect terminal (17) to be connected with external equipment, described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc., the magnetic field that if judged result is the power current in action blind area to be produced (or being the power current in action blind area), then disjunction actuator (7) action, section breaker (8) disconnect, thus surge is released, path disconnects, if judged result is the magnetic field (or being the power current more than action blind area) produced more than the power current of action blind area, then disjunction actuator (7) is failure to actuate, section breaker (8) does not turn off, directly protected by overcurrent protective device (4), now overcurrent protective device detector (13) will detect that overcurrent protective device (4) disconnects, this signal can be sent to data cell (15) through signal transmssion line 2 (14), data cell (15) sends signal by connecting line (16) to connecting terminal (17) external equipment, described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc., the magnetic field that if judged result is surge current to be produced (or being surge current), then normally released by lightning protection component (3) and overcurrent protective device (4) surge in series path (1) of releasing, now signal sensor (11) is able to detect that lightning protection component (3) itself or surge are released the upper temperature of path (1), magnetic field, infrared, the change of the signals such as electric power, thus analyzing lightning current size, the information such as waveform, the record thunderbolt time, this type of information is sent to data cell (15) through signal transmssion line 1 (12), data cell (15) is by connecting line (16), connect terminal (17) to be connected with external equipment, described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc.
Described section breaker has can make it recover the reset unit of normally off (illustrating not shown in FIG.); Described disjunction actuator can control section breaker action (disjunction actuator described in embodiment illustrated in fig. 1 (7) controls section breaker action by electromagnetic mode, and other control mode is not repeated herein) by the mode of mechanical linkage or electromagnetic mode or the two combination.
Described lightning protection component can be electronic devices such as varistor, discharge tube, TVS one or a combination set of; Described overcurrent protective device can be fuse or chopper.
Fig. 2 is the principle schematic that Fig. 1 (first embodiment) is corresponding, depicts the reset unit (24) of section breaker (8) and the data processing unit (5) that judgment means (6) is built-in in figure; Described reset unit (24) can make section breaker recover normally off; Field signal can be converted to the function of current signal, magnetic field is processed, analyze by described data processing unit (5), this function the electric current to conversion can also be had to process, analyze that (data processing unit in following example is all identical with the data processing unit in the present embodiment, repeat no more), aa ' is the input of judgment means, and bb ' is the outfan of judgment means.
Fig. 3 is this Novel electric surge protector the second embodiment principle schematic, depicts the reset unit (24) of section breaker (8) and the data processing unit (5) that judgment means (6) is built-in in figure. Overcurrent protective device (4) is not had in the surge protector of this embodiment; only include surge release path (1), magnetic field induction device (2), lightning protection component (3), judgment means (6), disjunction actuator (7), section breaker (8), thermel protection device (9), signal sensor (11), signal transmssion line 1 (12), data cell (15), connecting line (16), connect terminal (17); wherein aa ' is the input of judgment means, and bb ' is the outfan of judgment means. Because surge protector is in use; without built-in overcurrent protective device; so rear end must concatenate overcurrent protective device, therefore the present embodiment describe Novel electric surge protector have power current by time can allow its external overcurrent protective device timely action that surge protector is departed from protection circuit.
In embodiment shown in Fig. 4, the component content of this Novel electric surge protector is arranged in different housings and collectively forms the present invention. Wherein, overcurrent protective device (4) and overcurrent protective device detector (13) are placed in same housing; magnetic field induction device (2), lightning protection component (3), judgment means (6), disjunction actuator (7), section breaker (8), thermel protection device (9), signal sensor (11), signal transmssion line 1 (12), data cell (15), connecting line (16), connection terminal (17) are placed in same housing; wherein aa ' is the input of judgment means, and bb ' is the outfan of judgment means.
Fig. 1, in embodiment illustrated in fig. 2, the lightning protection component (3) of this Novel electric surge protector, magnetic field induction device (2), overcurrent protective device (4), thermel protection device (9), judgment means (6), disjunction actuator (7), section breaker (8), signal sensor (11), signal transmssion line (includes signal transmssion line 1 (12) and signal transmssion line 2 (14)), overcurrent protective device detector (13), data cell (15), connecting line (16), connect terminal (17) to be integrated in one, it is loaded on a housing, meet electrical equipment to surge protector discharge capacity, the requirement of response time and three indexs of voltage protection level, enhance the reliability of equipment, Fig. 3, in embodiment illustrated in fig. 4, the composition of this Novel electric surge protector is encapsulated in different modules and combines collectively forms the present invention, it is easily installed use, enhance practicality.
Fig. 5 is protected effect schematic diagram of the present invention. Power frequency short circuit current can be divided into three parts: little power frequency short circuit 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; And marginal, be also the action blind area of power frequency short circuit current of existing surge protector protection device, abbreviation action blind area.
Fig. 6 is group network system first embodiment schematic diagram of the present invention; in figure, connecting line 1 (21) is connected with data acquisition equipment (19) after being linked together by several this Novel electric surge protectors (18), and data acquisition equipment (19) is connected with monitoring device (20) by data wire (22). Described connecting line 1 (21) accesses the connection terminal (17) of this Novel electric surge protector (18), and described data acquisition equipment (19) internally data cell (15) can provide power supply. Described connecting line 1 (21) can be 485 buses or CAN or other line styles. Described data wire (22) can be netting twine, optical fiber or other line styles.
Fig. 7 is group network system of the present invention second embodiment schematic diagram; in figure, the network switching equipment (23) can gather the data of multiple data acquisition equipment (19); it is transferred to monitoring device (20) simultaneously, constitutes the intelligent monitoring network of surge protector (18).
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 surge in series are released path, described thermel protection device is positioned on lightning protection component electrode, it is characterised in that: this Novel electric surge protector also includes magnetic field induction device, judgment means, disjunction actuator, section breaker, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, connection terminal; Described magnetic field induction device is arranged on surge and releases around path, and is connected with judgment means input; Described judgment means outfan is connected with disjunction actuator; Described disjunction actuating mechanism controls section breaker action; Described section breaker is normally closed and is series at surge and releases in path; Described signal sensor is connected with data cell by signal transmssion line; Described overcurrent protective device detector is parallel to overcurrent protective device two ends, is connected with data cell through signal transmssion line; Described data cell is connected with being connected terminal by connecting line.
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 section breaker has can make it recover the reset unit of normally off.
4. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: being provided with power supply in described judgment means and can analyze the data processing unit of the physical quantitys such as the size in magnetic field, direction, rate of change, persistent period, described data processing unit is connected with magnetic field induction device through judgment means input.
5. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: being provided with power supply in described judgment means and field signal can be converted to current signal and analyze the data processing unit of the physical quantitys such as the size of this electric current, direction, rate of change, persistent period, described data processing unit is connected with magnetic field induction device through judgment means input.
6. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: described disjunction actuator can control section breaker action by the mode of mechanical linkage or electromagnetic mode or the two combination.
7. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: described lightning protection component, magnetic field induction device, overcurrent protective device, thermel protection device, judgment means, disjunction actuator, section breaker, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, connection terminal may be located at same housing, it is also possible to be installed on different housings or be encapsulated in different modules and combine.
8. 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.
9. 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.
10. a kind of Novel electric surge protector according to claim 1 and 2, it is characterised in that: described signal sensor be installed on lightning protection component electrode surface or near, or be installed on surge and release near path.
11. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: described data cell is connected with external equipment by connecting line, connection terminal, and described external equipment can be data acquisition equipment, the network switching equipment, monitoring device etc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410669097.5A CN105633934B (en) | 2014-11-10 | 2014-11-10 | A kind of novel surge protector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410669097.5A CN105633934B (en) | 2014-11-10 | 2014-11-10 | A kind of novel surge protector |
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| CN105633934A true CN105633934A (en) | 2016-06-01 |
| CN105633934B CN105633934B (en) | 2018-11-13 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944727A (en) * | 2009-07-06 | 2011-01-12 | 孙巍巍 | Surge protector with detection device |
| CN102545185A (en) * | 2010-12-29 | 2012-07-04 | 孙巍巍 | Surge protector with spare protection module |
| CN103855695A (en) * | 2012-12-05 | 2014-06-11 | 孙巍巍 | Novel surge protection device |
| CN204391726U (en) * | 2014-11-10 | 2015-06-10 | 孙麓轩 | A kind of Novel electric surge protector |
-
2014
- 2014-11-10 CN CN201410669097.5A patent/CN105633934B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944727A (en) * | 2009-07-06 | 2011-01-12 | 孙巍巍 | Surge protector with detection device |
| CN102545185A (en) * | 2010-12-29 | 2012-07-04 | 孙巍巍 | Surge protector with spare protection module |
| CN103855695A (en) * | 2012-12-05 | 2014-06-11 | 孙巍巍 | Novel surge protection device |
| CN204391726U (en) * | 2014-11-10 | 2015-06-10 | 孙麓轩 | A kind of Novel electric surge protector |
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