CN204391731U - A kind of Novel electric surge protector - Google Patents

A kind of Novel electric surge protector Download PDF

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Publication number
CN204391731U
CN204391731U CN201420709164.7U CN201420709164U CN204391731U CN 204391731 U CN204391731 U CN 204391731U CN 201420709164 U CN201420709164 U CN 201420709164U CN 204391731 U CN204391731 U CN 204391731U
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overcurrent protective
protective device
surge protector
novel electric
lightning protection
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CN201420709164.7U
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孙麓轩
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孙麓轩
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Abstract

The utility model relates to a kind of 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 and to release path, described thermel protection device is positioned on lightning protection component electrode; This Novel electric surge protector also comprises normally-closed contact, detector for magnetic field, measure loop, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear.This Novel electric surge protector solve at all the action blind area of existing thermel protection device and overcurrent protective device and overcurrent protective device, the action situation of thermel protection device and lightning protection component working condition unknowable, the security hidden trouble brought.

Description

A kind of Novel electric surge protector
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, but 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, this surge protector comprises 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 normally-closed contact, detector for magnetic field, measure loop, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear, described normally-closed contact is arranged in surge and releases path, connects with lightning protection component and overcurrent protective device, described detector for magnetic field is arranged on surge and releases near path, and is connected with electromagnetism actuating mechanism by measure loop, described electromagnetism action mechanism controls buffer displacement shell fragment motion, described buffer displacement shell fragment is connected with inertial device, described inertial device controls normally-closed contact action through link gear, 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.
The built-in magnetic field detectors of described detector for magnetic field and data amplifying device, magnetic field detectors is connected with data amplifying device, and data amplifying device is connected with electromagnetism actuating mechanism by measure loop.Described normally-closed contact also has reset switch.Described lightning protection component, comprises piezo-resistance, discharge tube, TVS one or a combination set of; Described overcurrent protective device can be fuse or circuit breaker; Described inertial device is flying wheel or weight or damping gear or air valve or delay circuit, just can move when the power continued.
The built-in magnetic field detectors of described detector for magnetic field and data amplifying device, described magnetic field detectors to be released the change in path magnetic field for detecting surge, exports different current signal to data amplifying device according to different magnetic field; Described data amplifying device built-in power, exports to electromagnetism actuating mechanism by measure loop after being amplified by signal, drives its action.Because the magnetic field that lightning surge and power current give off is different, comprise the parameters such as the size in magnetic field, direction, rate of change, duration, therefore the electric current difference of electromagnetism actuating mechanism exported to by final data amplifying device, and the duration of electromagnetism actuating mechanism generation action is also different.Only have when power frequency short circuit current flow continuously through surge release path time, the input induced current that electromagnetic detection continues to electromagnetism actuating mechanism, thus the push rod of electromagnetism actuating mechanism continues to promote inertia displacement shell fragment, causes inertial device to move; Lightning surge is exceedingly fast due to time of origin, and the push rod of electromagnetism actuating mechanism only ejects instantaneously and sets back, and inertial device can not be driven due to its effect of inertia.
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 working method of this Novel electric surge protector:
When lightning current flows through lightning protection component, the time is very short, and electric current is released rapidly, electromagnetism actuating mechanism push rod ejects rapidly and recovers, inertial device keeps motionless state due to effect of inertia, link gear can not be driven to open surge and to release the normally-closed contact of path, thus guarantee that lightning current is released smoothly; Now signal sensor can detect that lightning protection component itself or surge are released the change of the signals such as temperature on path, magnetic field, infrared, electric power, thus analyze the information such as lightning current size, waveform, the record thunderbolt time, this type of information is 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.
When lightning protection component deterioration power frequency leakage current reaches certain value, 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; 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.
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 for time delay Millisecond Δ t, inertial device rotates counterclockwise rapidly, drive link gear to open surge to release the normally-closed contact of path, thus the lightning protection component being about to damage is departed from from main circuit, now overcurrent protective device detector will detect that overcurrent protective device disconnects, this signal can be sent to data cell through data line, and 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.
In above three 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 is connected normally-closed contact in path is released in surge; the current type that surge is released in path is judged by detector for magnetic field, measure loop, electromagnetism actuating mechanism, inertial device; thus open by link gear the normally-closed contact that surge releases in path when power current flows through, solve the action blind zone problem of thermel protection device and overcurrent protective device.
2. the lightning protection component of this Novel electric surge protector and detector for magnetic field, measure loop, overcurrent protective device, thermel protection device, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, normally-closed contact, reset switch, 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 installed on different housings or be encapsulated in different modules and combine, be convenient to install and use.
3. this Novel electric surge protector can not have overcurrent protective device.
4. the splicing ear of this Novel electric surge protector can be connected with external equipment, and the signal that signal sensor 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, and the described network switching equipment can connect multiple data acquisition equipment.
Accompanying drawing explanation
Fig. 1 is the first example structure schematic diagram 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, 0 is push rod, 1 is the first terminals, 2 is normally-closed contacts, 3 is detector for magnetic field, 3-1 is magnetic field detectors, 3-2 is data amplifying devices, 4 is electromagnetism actuating mechanisms, 5 is second terminals, 6 is overcurrent protective devices, 7 is lightning protection components, 8 is buffer displacement shell fragments, 9 is inertial devices, 10 is that surge is released path, 11 is thermel protection devices, 12 is measure loop, 13 is shells, 14 is link gears, 15 is signal sensors, 16 is overcurrent protective device detectors, 17 is signal transmssion lines 1, 18 is signal transmssion lines 2, 19 is data cells, 20 is connecting lines, 21 is splicing ears, 22 is this Novel electric surge protectors, 23 is connecting lines 1, 24 is data acquisition equipments, 25 is data wires, 26 is network switching equipment, 27 is watch-dogs, 28 is reset switches.
Fig. 1 is the first example structure schematic diagram of the present utility model, and streak line is that surge is released path (10), is composed in series by normally-closed contact (2), lightning protection component (7) and overcurrent protective device (6); Black heavy line is measure loop (12), connects detector for magnetic field (3) and electromagnetism actuating mechanism (4); Described thermel protection device (11) is positioned on lightning protection component (7) electrode; Described detector for magnetic field (3) is arranged on surge and releases near path (10), and is connected by measure loop (12) with electromagnetism actuating mechanism (4); Described detector for magnetic field (3) built-in magnetic field detectors (3-1) and data amplifying device (3-2), magnetic field detectors (3-1) is connected with data amplifying device (3-2), and data amplifying device (3-2) is connected by measure loop (12) with electromagnetism actuating mechanism (4); The push rod (0) of described electromagnetism actuating mechanism (4) can promote buffer displacement shell fragment (8); Described buffer displacement shell fragment (8) is connected with inertial device (9); Normally-closed contact (2) action is controlled through link gear (14) after described inertial device (9) rotates.In the present embodiment, inertial device (9) is flying wheel.The power that flying wheel is only continued just can be rotated, namely the instantaneous ejection of push rod (0) that lightning surge causes is regained and can not be promoted flying wheel rotation, the push rod (0) that lasting power current causes continues ejection just can promote flying wheel rotation, thus drives link gear (14) to open normally-closed contact (2).Described normally-closed contact (2) has reset switch, and reset switch (28) does not draw in this figure.In figure, black color dots setting-out is respectively signal transmssion line 1 (17) and signal transmssion line 2 (18), described signal sensor (15) is installed on lightning protection component (7) ate electrode, the temperature of detection lightning protection component (7), magnetic field, the signal such as infrared, signal sensor (15) also detects the action situation of thermel protection device (11) simultaneously, and exports to data cell (19) through signal transmssion line 1 (17); Described overcurrent protective device detector (16) is connected in parallel on overcurrent protective device (6) two ends, the state of detection overcurrent protective device (6), and export to data cell (19) through signal transmssion line 2 (18); Described data cell (19) built-in power, also can pass through connecting line (20) and obtain power supply from splicing ear (21) outside.This embodiment only provides the embodiment that signal sensor (15) is installed on lightning protection component (7) ate electrode, and signal sensor (15) is positioned at lightning protection component (7) surface or is positioned at the surge upper or neighbouring embodiment of path (10) of releasing and repeats no more.
The working method of the present embodiment: when lightning current flows through lightning protection component (7), electromagnetism actuating mechanism (4) push rod (0) rapidly ejection recovers again, inertial device (9) keeps motionless state due to effect of inertia, link gear (14) can not be driven to open surge to release the normally-closed contact (2) of path (10), thus guarantee that lightning current is released smoothly; Now signal sensor (15) can detect the change of the temperature of lightning protection component (7) itself, magnetic field, the signal such as infrared, thus analyze the information such as lightning current size, waveform, the record thunderbolt time, this type of information is sent to data cell through data line 1 (17), data cell (19) is connected with external equipment by connecting line (20), splicing ear (21), and described external equipment can be data acquisition equipment (24), the network switching equipment (26), watch-dog (27) etc.When the deteriorated power frequency leakage current of lightning protection component (7) reaches certain value, thermel protection device (11) will start, and disconnect at lightning protection component (7) electrode place; Now signal sensor (15) can detect thermel protection device (11) action; this signal can be sent to data cell (19) through data 1 (17); data cell (19) is connected with external equipment by connecting line (20), splicing ear (21), and described external equipment can be data acquisition equipment (24), the network switching equipment (26), watch-dog (27) etc.When the power current in the action blind area that power system failure or other reasons cause flows through lightning protection component (7), electromagnetism actuating mechanism (4) makes push rod (0) continue to eject under the effect of electromagnetic force, push rod promotes buffer displacement shell fragment (8), inertial device (9) rotates counterclockwise, drive link gear (14) to open surge to release the normally-closed contact (2) of path (10), thus the lightning protection component (7) being about to damage is departed from from main circuit; Now overcurrent protective device detector (16) will detect that overcurrent protective device (6) disconnects; this signal can be sent to data cell (19) through data line 2 (18), data cell (19) sends signal by connecting line (20) to splicing ear (21) external equipment.Described external equipment can be data acquisition equipment (24), the network switching equipment (26), watch-dog (27) etc.
Fig. 2 is principle schematic corresponding to Fig. 1 first embodiment, wherein inertia displacement shell fragment (8) and link gear (14) represented by dashed line, reset switch (28) can pass through inertial device (9) control normally-closed contact (2) recover closure state.
Fig. 3 is this Novel electric surge protector second embodiment principle schematic, overcurrent protective device (6) is not had in the surge protector of this embodiment, only comprise surge to release path (10) and detector for magnetic field (3), measure loop (12), thermel protection device (11), electromagnetism actuating mechanism (4), elastic displacement shell fragment (8), inertial device (9), link gear (14), reset switch (28), signal sensor (15), signal transmssion line (comprising signal transmssion line 1 (17) and signal transmssion line 2 (18)), overcurrent protective device detector (16), data cell (19), connecting line (20), splicing ear (21), wherein inertia displacement shell fragment (8) and link gear (14) represented by dashed line, reset switch (28) can pass through inertial device (9) and control normally-closed contact (2) recovery closure state.Because surge protector in use; if inside does not have 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, thus surge protector is departed from main circuit.
Fig. 4 is this Novel electric surge protector the 3rd embodiment principle schematic; in this embodiment, detector for magnetic field (3) and overcurrent protective device (6), overcurrent protective device detector (16) are positioned at another one housing; wherein inertia displacement shell fragment (8) and link gear (14) dotted line, reset switch (28) can pass through inertial device (9) and control normally-closed contact (2) recovery closure state.
Fig. 1, Fig. 2 is lightning protection component (7) and detector for magnetic field (3), measure loop (12), overcurrent protective device (6), thermel protection device (11), buffer displacement shell fragment (8), inertial device (9), electromagnetism actuating mechanism (4), link gear (14), normally-closed contact (2), reset switch (28), signal sensor (15), signal transmssion line (comprising signal transmssion line 1 (17) and signal transmssion line 2 (18)), overcurrent protective device detector (16), data cell (19), connecting line (20), splicing ear (21) accessible site is in the embodiment of one, Fig. 3, Fig. 4 is lightning protection component (7) and detector for magnetic field (3), measure loop (12), overcurrent protective device (6), thermel protection device (11), buffer displacement shell fragment (8), inertial device (9), electromagnetism actuating mechanism (4), link gear (14), normally-closed contact (2), reset switch (28), signal sensor (15), signal transmssion line (comprising signal transmssion line 1 (17) and signal transmssion line 2 (18)), overcurrent protective device detector (16), data cell (19), connecting line (20), splicing ear (21) also can be installed on different housings or be encapsulated in the embodiment combined in different modules.
Fig. 5 is the utility model protected effect schematic diagram, power frequency short circuit current is divided into three parts: little power 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; Marginal, be the power frequency short circuit current action blind area 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 (24) after being linked together by several this Novel electric surge protectors (22), and data acquisition equipment (24) is connected with watch-dog (27) by data wire (25).Described connecting line 1 (23) accesses the splicing ear (21) of this Novel electric surge protector (22), and described data acquisition equipment (24) internally data cell (19) can provide power supply.Described connecting line 1 (23) can be 485 buses or CAN or other line styles.Described data wire (25) 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 (26) can gather the data of multiple data acquisition equipment (24); be transferred to watch-dog (27) simultaneously, form the intelligent monitoring network of surge protector (22).
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 (10)

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 normally-closed contact, detector for magnetic field, measure loop, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear; Described normally-closed contact is arranged in surge and releases path, connects with lightning protection component and overcurrent protective device; Described detector for magnetic field is arranged on surge and releases near path, and is connected with electromagnetism actuating mechanism by measure loop; Described electromagnetism action mechanism controls buffer displacement shell fragment motion; Described buffer displacement shell fragment is connected with inertial device; Described inertial device controls normally-closed contact action through link gear; 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 does not have overcurrent protective device.
3. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: the built-in magnetic field detectors of described detector for magnetic field and data amplifying device; magnetic field detectors is connected with data amplifying device, and data amplifying device is connected with electromagnetism actuating mechanism.
4. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described normally-closed contact has reset switch.
5. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described inertial device is flying wheel or weight or damping gear or air valve or delay circuit.
6. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: described lightning protection component and detector for magnetic field, measure loop, overcurrent protective device, thermel protection device, buffer displacement shell fragment, inertial device, electromagnetism actuating mechanism, link gear, normally-closed contact, reset switch, 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.
7. 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.
8. a kind of Novel electric surge protector 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.
9. a kind of Novel electric surge protector 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.
10. 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, splicing ear, and described external equipment can be data acquisition equipment, the network switching equipment, watch-dog.
CN201420709164.7U 2014-11-10 2014-11-10 A kind of Novel electric surge protector Active CN204391731U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105576638A (en) * 2014-11-10 2016-05-11 孙麓轩 Novel surge protection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105576638A (en) * 2014-11-10 2016-05-11 孙麓轩 Novel surge protection device

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