CN204391732U - A kind of Novel electric surge protector - Google Patents
A kind of Novel electric surge protector Download PDFInfo
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- CN204391732U CN204391732U CN201420709165.1U CN201420709165U CN204391732U CN 204391732 U CN204391732 U CN 204391732U CN 201420709165 U CN201420709165 U CN 201420709165U CN 204391732 U CN204391732 U CN 204391732U
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Abstract
The utility model relates to a kind of Novel electric surge protector, mainly comprises lightning protection component, power current inhibitor, magnetic field sensor, energy conversion device, overcurrent protective device, thermel protection device, time delay step electromagnet, sensing chip, break contact, tripping mechanism, arc-chute, arc extinguishing magnetic blow-out plate, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear and upper and lower terminals.Magnetic field sensor in the utility model can sense the magnetic field of lightning protection component side; and introduce energy conversion device and be converted to electric current; by corresponding electric current input time delay step electromagnet; time delay step electromagnet causes a series of mechanical linkage; open break contact; surge is released path open circuit, thus realizes the protective effect to surge protector.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
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 protection angle in existing SPD, in this region, and all akinesias of thermel protection device and overcurrent protective device, thus there is 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, and described surge protector mainly comprises lightning protection component, power current inhibitor, magnetic field sensor, energy conversion device, overcurrent protective device, thermel protection device, time delay step electromagnet, sensing chip, tripping mechanism, break contact, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear and shell.Described lightning protection component and overcurrent protective device series connection, form surge and to release path; Described thermel protection device is positioned at lightning protection component electrode pin place; Described magnetic field sensor is installed on surge and releases near path, is connected with energy conversion device; Described energy conversion device connects the input of time delay step electromagnet; Described time delay step electromagnet acts on sensing chip; Described break contact is normally closed and be connected on surge and release on path, and described break contact comprises moving contact and fixed contact; Described sensing chip is connected by trip gear with moving contact; 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.
Magnetic field sensor in the utility model can sense the magnetic field flow through lightning protection component electric current and produce, the Magnetic Field that magnetic field sensor records by energy conversion device is converted into electric current and is transferred to time delay step electromagnet, the time difference of the signal that described time delay step electromagnet can export respectively according to induced lightening electric current and power current, realizes a kind of parametrization and controls.Power current is the periodic wave of Millisecond, and the electric current that energy conversion device is converted to also has this characteristic, and time delay step electromagnet can through pulse number stepping, start after Millisecond time delay, promote tablet, drive tripping mechanism, disjunction surge is released path, plays a protective role; In like manner, lightning current is fast-changing Microsecond grade pulse, and time delay step electromagnet can not complete pulse number stepping, enter delay stage, and lightning current flows through, so tripping mechanism is failure to actuate, ensures that lightning current is released smoothly.
Described power current inhibitor is connected with lightning protection component, is finally connected with lower terminals; Described magnetic field sensor is placed in surge and releases by path, to release the magnetic direction that path produces perpendicular to surge, the Magnetic Field recorded is transferred to energy conversion device by magnetic field sensor, Magnetic Field is converted into electric current and transfers to time delay step electromagnet by energy conversion device, the motion of time delay step electromagnet iron core can promote tablet, thus drives whole tripping mechanism that moving contact and fixed contact are disconnected; Break contact is by reset switch hand-reset simultaneously; Arc-chute and arc extinguishing magnetic blow-out plate are for eliminating the electric arc produced when moving contact and fixed contact disconnect.
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 surge current flows through, responded to by magnetic field sensor, and through energy conversion device conversion current signal transfer to time delay step electromagnet, because lightning current is fast-changing Microsecond grade pulse, time delay step electromagnet can not complete pulse number stepping, enter delay stage, electromagnetism actuating mechanism is failure to actuate, and SPD normally releases surge current; 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.When lightning protection component deterioration, when power frequency leakage current flows through lightning protection component, be installed on lightning protection component electrode tip thermel protection device heating melt, make surge release path disconnect, avoid surge protector breaking out of fire; 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.When power system failure, power current flow through, lightning protection component inefficacy short circuit time; power current inhibitor can play inhibitory action to the electric current now flow through; cause and can slowly be risen by the power frequency electric flow valuve of lightning protection component; extend the time of SPD breaking out of fire accident; time delay step electromagnet quick-action after pulse number stepping, Millisecond time delay simultaneously; promote tablet; drive tripping mechanism; disconnect break contact; the path thus cut-out surge is released, realizes the protective effect to lightning protection component.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.
Of the present utility modelly to be characterised in that:
1. this Novel electric surge protector solves the action blind zone problem of thermel protection device and overcurrent protective device; break contact controls by time delay step electromagnet, and the electric current on time delay step electromagnet finally depends on the magnetic field that surge that magnetic field sensor senses is released around path.
2. the lightning protection component of this Novel electric surge protector, power current inhibitor, magnetic field sensor, energy conversion device, overcurrent protective device, thermel protection device, time delay step electromagnet, tripping mechanism, break 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 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. magnetic field sensor and energy conversion device can independently be arranged, and also can adopt the magnetic field sensor with energy conversion device.
5. 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.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 figure of the present utility model
Fig. 2 is the schematic diagram of the first embodiment of the present utility model
Fig. 3 is the schematic diagram of the second embodiment of the present utility model
Fig. 4 is the schematic diagram of the 3rd embodiment of the present utility model
Fig. 5 is the utility model protected effect schematic diagram
Fig. 6 is the utility model workflow diagram ideally
Fig. 7 is the utility model group network system first embodiment schematic diagram.
Fig. 8 is the utility model group network system second embodiment schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
As shown in the figure, 1 is upper terminals, 2 is break contacts, 3 is tripping mechanisms, 4 is reset switches, 5 is tablets, 6 is magnetic field sensors, 7 is power current inhibitor, 8 is lower terminals, 9 is shells 1, 10 is lightning protection components, 11 is time delay step electromagnets, 12 is arc-chutes, 13 is arc extinguishing magnetic blow-out plates, 14 is energy conversion devices, 15 is overcurrent protective devices, 16 is thermel protection devices, 17 is fixed contact, 18 is moving contacts, 19 is shells 2, 20 is signal sensors, 21 is signal transmssion lines 1, 22 is overcurrent protective device detectors, 23 is signal transmssion lines 2, 24 is data cells, 25 is connecting lines, 26 is splicing ears, 27 is this Novel electric surge protectors, 28 is data acquisition equipments, 29 is watch-dogs, 30 is connecting lines 1, 31 is data wires, 32 is network switching equipment.Fig. 1 is the structural representation of the utility model embodiment one, and described upper terminals (1), power current inhibitor (7), thermel protection device (16), lightning protection component (10), overcurrent protective device (15), lower terminals (8) break contact (2) are connected in series.
Described power current inhibitor (7), is series between upper and lower terminals, has inhibitory action to the power current flow through, and can race against time for lightning protection component fault is on fire below.
Described break contact (2) comprises fixed contact (17) and moving contact (18), during normal work, moving contact (18) and fixed contact (17) are in closure state, when there being power current to flow through, time delay step electromagnet (11) controls moving contact (18) and fixed contact (17) disconnection, and surge is released path open circuit.
Described thermel protection device (16) is positioned at lightning protection component (10) electrode pin place; when there being less power current to flow through lightning protection component (10); thermel protection device (16) action, disconnects surge and to release path, protection lightning protection component.
Described lightning protection component (10), comprises piezo-resistance, discharge tube, TVS one or a combination set of;
Described magnetic field sensor (6) plane orthogonal in magnetic direction, the magnetic field that can exist around induction line, and Magnetic Field is exported to energy conversion device (14).
The magnetic field energy received can be converted to electric current energy by described energy conversion device (14), and exports the electric current obtained to time delay step electromagnet (11).
Under current technical background; described magnetic field sensor (6) and energy conversion device (14) can be placed in same equipment; the function of what this equipment completed is also described magnetic field sensor (6) and energy conversion device (14), therefore also should within protection range of the present utility model.
Described reset switch (4) disconnects when moving contact (18) and fixed contact (17), (after determining that SPD does not damage) is resetted manually by closing reset switch (4), make surge path recovery of releasing through-flow, thus make unspoiled SPD again take back circuit.
Described arc-chute (12) and arc extinguishing magnetic blow-out plate (13) form the arc-control device of this Novel electric surge protector, for eliminating the electric arc produced when moving contact (18) separates with fixed contact (17).
Described overcurrent protective device (15) can be fuse or circuit breaker, and when the electric current flowing through lightning protection component is larger power current, this device effect, disconnects surge and to release path.
Described signal sensor (20) is installed on lightning protection component (10) surface, the temperature of detection lightning protection component (10), magnetic field, the signal such as infrared, signal sensor (20) also detects the action situation of thermel protection device (16) simultaneously, and exports to data cell (24) through signal transmssion line 1 (21); Described overcurrent protective device detector (22) is connected in parallel on overcurrent protective device (15) two ends, the state of detection overcurrent protective device (15), and export to data cell (24) through signal transmssion line 2 (23); Described data cell (24) built-in power, also can pass through connecting line (25) and obtain power supply from splicing ear (26) outside.
Fig. 2 is the schematic diagram of the first embodiment; namely when power current flow through surge release path time; its energy is by electric energy-magnetic field energy-electric transformation of energy; step electromagnet is made to trigger the mechanical linkage of tripping mechanism (3); disconnect break contact (2); surge is released path open circuit, realizes the protection to lightning protection component.
Fig. 3 is the schematic diagram of the utility model second embodiment, overcurrent protective device (15) is not had in the surge protector of this embodiment, only comprise surge to release path and magnetic field sensor (6), power current inhibitor (7), energy conversion device (17), time delay step electromagnet (11), tripping mechanism (3), tablet (5), break contact (2), signal sensor (20), signal transmssion line 1 (21), overcurrent protective device detector (22), signal transmssion line 2 (23) data cell (24), connecting line (25), splicing ear (26).This second embodiment gives the fundamental diagram of the surge protector in the utility model in such cases.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 operating circuit.
Fig. 4 is the schematic diagram of the 3rd embodiment of the present utility model, in the practical application of surge protector, described lightning protection component (10) and magnetic field sensor (6) may be there is, energy conversion device (14), power current inhibitor (7), overcurrent protective device (15), thermel protection device (16), time delay step electromagnet (11), tripping mechanism (3), break contact (2), signal sensor (20), signal transmssion line 1 (21), overcurrent protective device detector (22), signal transmssion line 2 (23), data cell (24), connecting line (25), splicing ear (26) is installed on two different housings, the situation of housing 1 (9) and housing 2 (19), in practical application, also may there is the situation that element is installed on multiple housing, wherein a kind of fundamental diagram is only listed at this, the program is also applicable to other distortion in the case simultaneously.
Fig. 1, Fig. 2 are the embodiment that each element concentrates on one, and Fig. 3, Fig. 4 then illustrate each element and also can be installed on different housings or be encapsulated in the embodiment combined in disparate 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.
The utility model is for the surge protector in power electronic circuits system and protective device thereof, and this problem of action blind area can be overcome, workflow ideally as shown in Figure 6, namely pass through with magnetic field sensor (6), the protective device that energy conversion device (14) and step electromagnet (11) are core realizes the protection to surge protector internal environment, described protective device mainly comprises break contact (2), tripping mechanism (3), time delay step electromagnet (11), reset switch (4), tablet (5), magnetic field sensor (6), energy conversion device (14), power current inhibitor (7), arc-chute (12), arc extinguishing magnetic blow-out plate (13) and upper terminals (1), lower terminals (8), overcurrent protective device (15) and thermel protection device (16).
Fig. 7 is the utility model group network system first embodiment schematic diagram; in figure, connecting line 1 (30) is connected with data acquisition equipment (28) after being linked together by several this Novel electric surge protectors (27), and data acquisition equipment (28) is connected with watch-dog (29) by data wire (31).Described connecting line 1 (30) accesses the splicing ear (26) of this Novel electric surge protector (27), and described data acquisition equipment (28) internally data cell (24) can provide power supply.Described connecting line 1 (30) can be 485 buses or CAN or other line styles.Described data wire (31) can be netting twine, optical fiber or other line styles.
Fig. 8 is the utility model group network system second embodiment schematic diagram; in figure, the network switching equipment (32) can gather the data of multiple data acquisition equipment (28); be transferred to watch-dog (29) simultaneously, form the intelligent monitoring network of surge protector (27).
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 (12)
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 power current inhibitor, magnetic field sensor, energy conversion device, time delay step electromagnet, sensing chip, break contact, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear; Described power current inhibitor is connected on surge and releases on path; Described break contact is normally closed and be connected on surge and release on path, and described break contact comprises moving contact and fixed contact; Described magnetic field sensor is placed in surge and releases by path, to release the magnetic direction that path produces perpendicular to surge; Described magnetic field sensor is connected with energy conversion device, and energy conversion device output is connected with time delay step electromagnet, and described time delay step electromagnet controls sensing chip action; Described sensing chip is connected by tripping mechanism with moving contact; 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: described break contact can not close after disconnecting before hand-reset again.
4. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described break contact has reset switch.
5. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: the time delay step electromagnet adopting the time difference producing magnetic field according to lightning current and power current to realize parametrization to control, as the foundation of disjunction SPD path.
6. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described time delay step electromagnet controls moving contact action by mechanical linkage.
7. a kind of Novel electric surge protector according to claim 1 and 2; it is characterized in that: described lightning protection component and magnetic field sensor, energy conversion device, power current inhibitor, overcurrent protective device, thermel protection device, time delay step electromagnet, tripping mechanism, break contact, signal sensor, signal transmssion line, overcurrent protective device detector, data cell, connecting line, splicing ear; same housing can be positioned at, also can 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, is characterized in that: described overcurrent protective device can be fuse or circuit breaker.
9. 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.
10. a kind of Novel electric surge protector according to claim 1 and 2, is characterized in that: described magnetic field sensor and energy conversion device can independently be arranged, and also can adopt the magnetic field sensor with energy conversion device.
11. 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.
12. a kind of Novel electric surge protectors according to claim 1 and 2, 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 |
|---|---|---|---|
| CN201420709165.1U CN204391732U (en) | 2014-11-10 | 2014-11-10 | A kind of Novel electric surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709165.1U CN204391732U (en) | 2014-11-10 | 2014-11-10 | A kind of Novel electric surge protector |
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| CN204391732U true CN204391732U (en) | 2015-06-10 |
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| CN201420709165.1U Active CN204391732U (en) | 2014-11-10 | 2014-11-10 | A kind of Novel electric surge protector |
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| CN (1) | CN204391732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656013A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
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2014
- 2014-11-10 CN CN201420709165.1U patent/CN204391732U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656013A (en) * | 2014-11-10 | 2016-06-08 | 孙麓轩 | Novel surge protector |
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