CN204391716U - A kind of Novel electric surge protector - Google Patents
A kind of Novel electric surge protector Download PDFInfo
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- CN204391716U CN204391716U CN201420691835.1U CN201420691835U CN204391716U CN 204391716 U CN204391716 U CN 204391716U CN 201420691835 U CN201420691835 U CN 201420691835U CN 204391716 U CN204391716 U CN 204391716U
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Abstract
The utility model relates to a kind of Novel electric surge protector; mainly comprise 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 placed on lightning protection component electrode pin, and this Novel electric surge protector also comprises magnetic field induction device, judgment means, actuating mechanism, normally opened contact, flow restricter, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line and splicing ear.This Novel electric surge protector fundamentally solves unknowable the brought security hidden trouble of working condition that existing thermel protection device and overcurrent protective device exist action blind area and overcurrent protective device, the action situation of thermel protection device and lightning protection component.
Description
Technical field
The utility model belongs to the surge protection technical field of electronic electric equipment.
Background technology
Thunder and lightning aloft to be discharged a kind of special weather phenomenon caused 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.It is one of important measures of lightning protection that the metallic circuits such as the power line be connected with electronic equipment, holding wire and control line install surge protector.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 brings hidden danger to the safety of institute's proterctive equipment.
Present stage SPD has Thermal protection and overcurrent protection (internal or external) two kinds of protective devices in use usually; 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; simultaneously overcurrent protection as a kind of backup protection mode of Thermal protection, so effective protective action can be played in most of occasion.
But, because heat transfer is a relatively slow process, the sensitivity of thermel protection device is low, still effective protection 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 pressing system, Thermal protection trip gear can not this process of perception in time and action does not occur, cause lightning protection component breakdown, power current enters SPD circuit, when this power frequency electric flow valuve does not reach the initiation value of overcurrent protective device, also can not there is action in overcurrent protective device, thus cause SPD on fire; If the initiation value of overcurrent protective device is selected little, though can start, be difficult to resist the impact of lightning current, cause SPD cannot normally to release lightning current.
And; the thermel protection device of existing surge protector and the operate condition of overcurrent protective device can not be grasped in time by user; the using state of surge protector internal lighting protection element can not be known by user simultaneously; thus cause to safeguard surge protector timely or changing 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 occurs serious potential safety hazard; Simultaneously overcurrent protective device and the action situation of thermel protection device and the working condition of lightning protection component can not be learnt in time by user, bring serious potential safety hazard equally.
Utility model content
In order to effectively solve the above prior-art problems; the utility model proposes a kind of easy for installation and Novel electric surge protector for power-supply system of dependable performance; the action situation of the action blind area of the existing thermel protection device of basic solution and overcurrent protective device and overcurrent protective device, thermel protection device and the working condition of lightning protection component unknowable, the security hidden trouble brought.
The utility model is by the following technical solutions: the utility model is for the surge protector in power electronic circuits system, comprises lightning protection component, overcurrent protective device, thermel protection device and shell; Described lightning protection component and overcurrent protective device series connection, form surge and to release path, described thermel protection device is positioned on lightning protection component electrode.The utility model also comprises magnetic field induction device, flow restricter, judgment means, actuating mechanism, normally opened contact, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear; Described magnetic field induction device is arranged on surge and releases around path, and is connected with judgment means input; Described judgment means output is connected with actuating mechanism; Described actuating mechanism controls normally opened contact action; Described normally opened contact and flow restricter are composed in series bypass and in parallel with lightning protection component; 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 splicing ear 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; Also can be installed on surge releases near path, and 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 splicing ear outside.
The built-in power of judgment means described in the utility model and data processing unit; Described actuating mechanism controls normally opened contact action by mechanical linkage or electromagnetic mode; After described normally opened contact is closed, can not open again before overcurrent protective device disconnects; Described normally opened contact has reset switch; The circuit that described flow restricter can be one of electronic devices such as resistance, inductance, electric capacity or be combined by it; Described overcurrent protective device can be fuse or circuit breaker; Described lightning protection component, comprises piezo-resistance, discharge tube, TVS one or a combination set of.
Core mechanism of the present utility model is magnetic field induction device and judgment means, described magnetic field induction device can sense the magnetic field that the electric current flowing through surge leadage circuit produces, the field signal sensed is transferred to the data processing unit in judgment means by magnetic field induction device by the input of judgment means, data processing unit processes the field signal received, analyze, according to the size in magnetic field, direction, rate of change, the physical quantitys such as duration judge that the type in magnetic field is (because surge current, little power current, power current within the scope of action blind area, the magnetic field that the power current being greater than action blind area produces is different, therefore the type in magnetic field can be judged), or the field signal sensed is transferred to the data analysis unit in judgment means by magnetic field induction device by the input of judgment means, field signal can be converted to current signal by described data analysis unit, and the physical quantity such as size, direction, rate of change, duration of this current signal is processed, analyzed, and judge the type of the electric current flowing through surge leadage circuit.Judged result is divided into following several situation: if the magnetic field that judged result is less power current to be produced (or being less power current), then actuating mechanism is failure to actuate, normally opened contact do not close, protected by thermel protection device, now signal sensor can detect 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, splicing ear, and described external equipment can be data acquisition equipment, the network switching equipment, watch-dog 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 actuating mechanism action, normally opened contact closes, by-path turn-on, the bypass be composed in series by described normally opened contact and flow restricter causes overcurrent protective device and protects, 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 line to splicing ear external equipment, described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc., if judged result is the magnetic field (or for being greater than the power current of action blind area) that the power current being greater than action blind area produces, then actuating mechanism is failure to actuate, normally opened contact do not close, 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 line to splicing ear external equipment, and described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc., the magnetic field that if judged result is surge current to be produced (or being surge current), then normally released by surge path of releasing, now signal sensor can 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 analyze 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, splicing ear is connected with external equipment, described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc.
In above Four processes, signal sensor signals such as temperature on path, magnetic field, infrared, electric power of all lightning protection component detected or surge being released send to data cell through data line, data cell sends signal by connecting line to splicing ear external equipment, to learn the using state of lightning protection component, life-span, event record.Described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc.
Of the present utility modelly to be characterised in that:
1. this Novel electric surge protector adds 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;
2. the lightning protection component of this Novel electric surge protector, magnetic field induction device, overcurrent protective device, thermel protection device, flow restricter, judgment means, actuating mechanism, normally opened contact, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear accessible site is in one, be loaded on housing, meet power consumption equipment to surge protector discharge capacity, the requirement of response time and voltage protection level three indexs, enhance the reliability of equipment, also can be contained in different modules to combine and jointly form the utility model, be convenient to install and use,
3. the actuating mechanism in this Novel electric surge protector is according to the judged result action of judgment means or be failure to actuate, and actuating mechanism institute energy requirement can be supplied by judgment means, and also configurable independent power supply, also can be supplied by power line;
4. the utility model can not have overcurrent protective device;
5. the splicing ear of this Novel electric surge protector can be connected with external equipment, and the signal that signal detector and overcurrent protective device detector detect is sent to external equipment, makes monitor staff grasp the various states of surge protector; Described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc.; Described data acquisition equipment can gather the information of multiple surge protector; The described network switching equipment can connect multiple data acquisition equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the first embodiment principle schematic of the present utility model.
Fig. 3 is the second embodiment principle schematic of the present utility model.
Fig. 4 is the 3rd embodiment principle schematic of the present utility model.
Fig. 5 is the utility model protected effect schematic diagram.
Fig. 6 is the utility model group network system first embodiment schematic diagram.
Fig. 7 is the utility model group network system second embodiment schematic diagram.
Specific embodiments
Below in conjunction with drawings and Examples, the utility model is further illustrated:
As shown in the figure, 1 is that surge is released path, 2 is magnetic field induction devices, 3 is lightning protection components, 4 is overcurrent protective devices, 5 is data processing units, 6 is judgment means, 7 is actuating mechanisms, 8 is normally opened contacts, 9 is flow restricters, 10 is thermel protection devices, 11 is shells, 11 ' is another shell, 12 is bypasses, 13 is signal sensors, 14 is signal transmssion lines 1, 15 is overcurrent protective device detectors, 16 is signal transmssion lines 2, 17 is data cells, 18 is connecting lines, 19 is splicing ears, 20 is this Novel electric surge protectors, 21 is data acquisition equipments, 22 is watch-dogs, 23 is connecting lines 1, 24 is data wires, 25 is network switching equipment, 26 is reset switches.
Fig. 1 is this Novel electric surge protector first embodiment, this Novel electric surge protector has 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) output (bb ') be connected with actuating mechanism (7); Described thermel protection device (10) is positioned on lightning protection component (3) electrode; It is in parallel with lightning protection component (3) that described normally opened contact (8) and flow restricter (9) form bypass (12); Described signal sensor (13) 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 (13) also detects the action situation of thermel protection device (10) simultaneously, and exports to data cell (17) through signal transmssion line 1 (14); Described overcurrent protective device detector (15) is connected in parallel on overcurrent protective device (4) two ends, the state of detection overcurrent protective device (4), and export to data cell (17) through signal transmssion line 2 (16); Described data cell (17) built-in power, also can pass through connecting line (18) and obtain power supply from splicing ear (19) outside.
When having electric current to flow through on path (1) is released in surge, magnetic field induction device (2) can sense this electric current the magnetic field that produces, and the field signal sensed is transferred to the built-in data processing unit (5) of judgment means (6) (data processing unit (5) does not draw in FIG) by the input of judgment means (6) (aa '), data processing unit (5) or the size according to magnetic field, direction, rate of change, the physical quantitys such as duration judge the type (surge current in magnetic field, little power current, power current in action blind area, the magnetic field that the power current being greater than action blind area produces is different, therefore can judge), or the type of electric current after field signal is converted to current signal, is judged according to physical quantitys such as the size of electric current, direction, rate of change, duration.The magnetic field that if judged result is less power current to be produced (or being less power current), then actuating mechanism (7) is failure to actuate, normally opened contact (8) does not close, protected by thermel protection device (10), now signal sensor (13) can detect thermel protection device (10) action, this signal can be sent to data cell (17) through signal transmssion line 1 (14), data cell (17) is by connecting line (18), splicing ear (19) is connected with external equipment, described external equipment can be data acquisition equipment, the network switching equipment, watch-dog 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 actuating mechanism (7) action, normally opened contact (8) closes, bypass (12) conducting that described normally opened contact (8) and flow restricter (9) are composed in series, draw (12) by bypass to protect to overcurrent protective device (4), now overcurrent protective device detector (15) will detect that overcurrent protective device (9) disconnects, this signal can be sent to data cell (17) through signal transmssion line 1 (14), data cell (17) sends signal by connecting line (18) to splicing ear (19) external equipment, described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc., if judged result is the magnetic field (or for being greater than the power current of action blind area) that the power current being greater than action blind area produces, then actuating mechanism (7) is failure to actuate, normally opened contact (8) does not close, directly protected by overcurrent protective device (9), now overcurrent protective device detector (15) will detect that overcurrent protective device (9) disconnects, this signal can be sent to data cell (17) through signal transmssion line 2 (16), data cell (17) sends signal by connecting line (18) to splicing ear (19) external equipment, described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc., the magnetic field that if judged result is surge current to be produced (or being surge current), then normally released by surge path of releasing, now signal sensor (13) can 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 analyze lightning current size, the information such as waveform, the record thunderbolt time, this type of information is sent to data cell (17) through data line 1 (14), data cell (17) is by connecting line (18), splicing ear (19) is connected with external equipment, described external equipment can be data acquisition equipment, the network switching equipment, watch-dog etc.
Described normally opened contact has reset switch (illustrating not shown in FIG.); Described actuating mechanism controls normally opened contact action (actuating mechanism described in embodiment illustrated in fig. 1 (7) controls normally opened contact action by Electromagnetic Control mode, and mechanical linkage control mode is not repeated herein) by mechanical linkage or electromagnetic mode.
Described lightning protection component can be electronic devices such as piezo-resistance, discharge tube, TVS one or a combination set of; The circuit that described flow restricter can be one of electronic devices such as resistance, inductance, electric capacity or be combined by it; Described overcurrent protective device can be fuse or circuit breaker.
Fig. 2 is the principle schematic that Fig. 1 (the first embodiment) is corresponding, reset switch (26) and the built-in data processing unit (5) of judgment means (6) is depicted in figure, described reset switch (26) can make normally opened contact recover the state often opened, field signal can be converted to the function of current signal by described data processing unit (5), field signal is processed, analyze, also this function can be had, and can process the electric current of conversion, (data processing unit in following examples is all identical with the data processing unit in the present embodiment in analysis, repeat no more), aa ' is the input of judgment means, bb ' is the output of judgment means.
Fig. 3 is this Novel electric surge protector second embodiment principle schematic, overcurrent protective device (4) is not had in the surge protector of this embodiment, only comprise surge to release path (1), magnetic field induction device (2), lightning protection component (3), judgment means (6), actuating mechanism (7), normally opened contact (8), flow restricter (9), thermel protection device (10), signal sensor (13), signal transmssion line 1 (14), overcurrent protective device detector (15), data cell (17), connecting line (18), splicing ear (19), reset switch (26), wherein aa ' is the input of judgment means, bb ' is the output of judgment means.Because surge protector in use; if there is no built-in overcurrent protective device; so rear end must be connected in series overcurrent protective device, therefore the Novel electric surge protector that describes of the present embodiment have power current by time can allow the timely action of its external overcurrent protective device and surge protector is departed from main circuit.
In embodiment shown in Fig. 4, the component content of this Novel electric surge protector is arranged in different housings and jointly forms the utility model.Wherein, magnetic field induction device (2) and overcurrent protective device (4), overcurrent protective device detector (15) is placed in same housing, lightning protection component (3), judgment means (6), actuating mechanism (7), normally opened contact (8), flow restricter (9), thermel protection device (10), signal sensor (13), signal transmssion line (comprising signal transmssion line 1 (14) and signal transmssion line 2 (16)), data cell (17), connecting line (18), splicing ear (19), reset switch (26) is placed in same housing, wherein aa ' is the input of judgment means, bb ' is the output 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 (10), flow restricter (9), judgment means (6), actuating mechanism (7), normally opened contact (8), signal sensor (13), signal transmssion line (comprising signal transmssion line 1 (14) and signal transmssion line 2 (16)), overcurrent protective device detector (15), data cell (17), connecting line (18), splicing ear (19), reset switch (26) is integrated in one, be loaded on a housing, meet power consumption equipment to surge protector discharge capacity, the requirement of response time and voltage protection level three indexs, enhance the reliability of equipment, Fig. 3, the composition of middle Novel electric surge protector embodiment illustrated in fig. 4 is encapsulated in different modules to combine and jointly forms the utility model, be convenient to install and use, enhance practicality.
Fig. 5 is the utility model protected effect schematic diagram.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; Large 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 protective device, be called for short action blind area.
Fig. 6 is the utility model group network system first embodiment schematic diagram; in figure, connecting line 1 (23) is connected with data acquisition equipment (21) after being linked together by several this Novel electric surge protectors (20), and data acquisition equipment (21) is connected with watch-dog (22) by data wire (24).Described connecting line 1 (23) accesses the splicing ear (19) of this Novel electric surge protector (20), and described data acquisition equipment (21) internally data cell (17) can provide power supply.Described connecting line 1 (23) can be 485 buses or CAN or other line styles.Described data wire (24) can be netting twine, optical fiber or other line styles.
Fig. 7 is the utility model group network system second embodiment schematic diagram; in figure, the network switching equipment (25) can gather the data of multiple data acquisition equipment (21); be transferred to watch-dog (22) simultaneously, form the intelligent monitoring network of surge protector (20).
Utilize the technical solution of the utility model, reach corresponding technique effect, or not departing from the technical scheme equivalents under design philosophy of the present utility model, all within protection range of the present utility model.
Claims (13)
1. a Novel electric surge protector, comprise lightning protection component, overcurrent protective device, thermel protection device and shell, described lightning protection component and overcurrent protective device series connection, form surge to release path, described thermel protection device is positioned on lightning protection component electrode, it is characterized in that: this Novel electric surge protector also comprises magnetic field induction device, flow restricter, judgment means, actuating mechanism, normally opened contact, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear; Described magnetic field induction device is arranged on surge and releases around path, and is connected with judgment means input; Described judgment means output is connected with actuating mechanism; Described actuating mechanism controls normally opened contact action; Described normally opened contact and flow restricter are composed in series bypass and in parallel with lightning protection component; 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 splicing ear by connecting line.
2. a kind of Novel electric surge protector according to claim 1, is characterized 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, is characterized in that: after described normally opened contact is closed, can not open before overcurrent protective device disconnects again.
4. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described normally opened contact has reset switch.
5. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: be provided with power supply in described judgment means and can analyze the size in magnetic field, direction, rate of change, the data processing unit of duration, 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 characterized in that: be provided with power supply in described judgment means and field signal can be converted to current signal and analyze the size of electric current, direction, rate of change, the data processing unit of duration, described data processing unit is connected with magnetic field induction device through judgment means input.
7. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described actuating mechanism controls normally opened contact action by mechanical linkage or electromagnetic mode.
8. 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, flow restricter, judgment means, actuating mechanism, normally opened contact, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear can be positioned at same housing, also can 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, is characterized in that: the circuit that described flow restricter can be one of resistance, inductance, electric capacity or be combined by it.
10. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described overcurrent protective device can be fuse or circuit breaker.
11. a kind of Novel electric surge protectors according to claim 1 and 2, is characterized in that: described lightning protection component can be piezo-resistance, discharge tube, TVS one or a combination set of.
12. a kind of Novel electric surge protectors according to claim 1 and 2, is characterized in that: described signal sensor be installed on lightning protection component electrode surface or near, or be installed on surge and release near path.
13. a kind of Novel electric surge protectors according to claim 1 and 2; it is characterized in that: described data cell is connected with external equipment by connecting line, splicing ear, and described external equipment can be data acquisition equipment, the network switching equipment, watch-dog.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420691835.1U CN204391716U (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 |
|---|---|---|---|
| CN201420691835.1U CN204391716U (en) | 2014-11-08 | 2014-11-08 | A kind of Novel electric surge protector |
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| Publication Number | Publication Date |
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| CN204391716U true CN204391716U (en) | 2015-06-10 |
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| CN201420691835.1U Expired - Lifetime CN204391716U (en) | 2014-11-08 | 2014-11-08 | A kind of Novel electric surge protector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633933A (en) * | 2014-11-08 | 2016-06-01 | 孙麓轩 | Novel surge protector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633933A (en) * | 2014-11-08 | 2016-06-01 | 孙麓轩 | Novel surge protector |
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