CN207603207U - A kind of modular Surge Protector - Google Patents
A kind of modular Surge Protector Download PDFInfo
- Publication number
- CN207603207U CN207603207U CN201721890713.5U CN201721890713U CN207603207U CN 207603207 U CN207603207 U CN 207603207U CN 201721890713 U CN201721890713 U CN 201721890713U CN 207603207 U CN207603207 U CN 207603207U
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- discharging gap
- current
- connection terminal
- gap
- wire connection
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Abstract
The utility model discloses a kind of modular Surge Protectors, and including the first wire connection terminal, the second wire connection terminal and at least two discharging gaps, the first wire connection terminal is connected with the second wire connection terminal by discharging gap；When there is overvoltage electric current or lightning current and voltage value reaches the threshold voltage of discharging gap, the circuit turn-on electric current between the first wire connection terminal and the second wire connection terminal is enable to pass through;Wherein, detection control module, regulating mechanism and arc-extinguish chamber are further included；At least one discharging gap is adjustable discharging gap, remaining is that discharging gap is fixed interval (FI)；When detection control module whether there is electric current for detection circuit, there is the gap then controlled to adjust between the adjustable discharging gap of mechanism increase if any electric current；If no current exists, regulating mechanism controls adjustable discharging gap to restore to the original state；Arc-extinguish chamber is located above adjustable discharging gap；The utility model has the characteristics that dependable performance, surge protection device (spd) at low cost, easy for installation.
Description
Technical field
The utility model is related to a kind of modular Surge Protectors.
Background technology
The thunder and lightning of transmission line of electricity prevents often being divided into A, B, C and D grades of protections, enters electrical equipment since A grades of circuits are in thunder and lightning
Front end, therefore carry powerful lightning impulse current, therefore Electronic Protection device is not suitable for A grades of lightning protection,
Largely using fixed type air gap protection device lightning protection, however the maximum deficiency of fixed type air gap protection device is exactly:Gap
Discharge voltage is up to more than 6KV and does not have protecting effect when excessive, and power frequency continues electric current and just can not reliably cut when gap is too small
Disconnected, it is power current to continue electric current herein, leads to front end air switch trip or causes fire incident.
Therefore, those skilled in the art are badly in need of researching and developing a surge protection device (spd) that can adjust discharging gap.
Invention content
The utility model is mainly solving the technical problems that provide a kind of surge protection device (spd) that can adjust discharging gap.
Technical solution is used by the utility model solves its technical problem：A kind of modular Surge Protector,
Including the first wire connection terminal, the second wire connection terminal and at least two discharging gaps, the first wire connection terminal and the second wire connection terminal
It is connected by discharging gap；When there is overvoltage electric current or lightning current and voltage value reaches the threshold voltage of discharging gap, make
Circuit turn-on electric current between first wire connection terminal and the second wire connection terminal is passed through;Wherein, further include detection control module,
Regulating mechanism and arc-extinguish chamber；At least one discharging gap is adjustable discharging gap, remaining is that discharging gap is fixed interval (FI)；Inspection
When surveying control module and whether there is electric current for detection circuit, exist if any electric current and then control to adjust mechanism and increase between adjustable electric discharge
Gap between gap；If no current exists, regulating mechanism controls adjustable discharging gap to restore to the original state；Arc-extinguish chamber is located at adjustable electric discharge
Above gap.
The modular Surge Protector of above structure is connected in circuit, when lightning current or overvoltage electric current should occur,
Its voltage value is more than the threshold values of discharging gap, and discharging gap conducting electric discharge, electric current can be let out to pass through discharging gap at this time
It puts.At this point, detection control module is detected there are electric current in circuit, therefore meeting controling adjustment device is rapidly by adjustable discharging gap
Gap become larger, prevent power current from entering generation power frequency continued flow, play the role of cut off power current, simultaneously because adjustable put
During gradually being become larger, electrical discharge arc, which is elongated to fall into, realizes arc extinguishing in arc-extinguish chamber in electric gap.Treat overvoltage electric current or
After lightning current disappears（I.e. no current exists）, regulating device drives adjustable discharge gap distance to restore to the original state, for mistake next time
Voltage and current or lightning current appearance are protected again.
Wherein, regulating mechanism includes coil, pull rod and resetting apparatus, and an electrode of pull rod and adjustable discharging gap connects
It connects, coil is sheathed on pull rod；When, there are during electric current, detection control module control coil is powered, coil drive pull rod in circuit
The mobile gap for realizing adjustable discharging gap increases；When no current in circuit, resetting apparatus drives pull rod to reset.
It adopts the structure, when there are during electric current in circuit（That is lightning current or overvoltage electric current flows through）, detection control mould
Block control coil is powered, and coil generates magnetic field force so that pull rod moves, and the gap so as to fulfill adjustable discharging gap becomes larger, and hinders
Only power current enters generation power frequency continued flow, plays the role of cutting off power current.When the current vanishes, resetting apparatus band is utilized
Dynamic pull rod resets.It adopts the structure with being swift in response, and flowing through control can using lightning current or overvoltage electric current
Adjust discharging gap gap variation, by such structure can adjustable discharging gap distance change by discharge process
In independently realize.
Wherein, detection control module includes detection unit, control unit and switch unit, and detection unit is used to detect electricity
It whether there is electric current in road；Coil is made to be powered by control unit driving switch unit when there is current flow, when no current, control
Coil blackout processed.
Wherein, detection device is mutual inductor, is set on the circuit that adjustable discharging gap is connect with fixed discharging gap.
It is detected by mutual inductor, ensures the accuracy of detection data, prevent maloperation.
Wherein, switch unit is transistor, and control module includes rectification unit, voltage regulation filtering unit and current limliting electricity
R5 is hindered, mutual inductor is in parallel with rectification unit, by voltage regulation filtering unit filtering, flows through the base of current-limiting resistance R5 and transistor
The collector of grade connection, coil and transistor connects, the emitter ground connection of transistor.
Transistor is used as switch so that the performance on circuit is more stable, prevents error.
Wherein, switch unit is field-effect tube, and control module includes rectification unit, voltage regulation filtering unit and current-limiting resistance
R5, the switch unit are field-effect tube, and mutual inductor is in parallel with rectification unit, by voltage regulation filtering unit filtering, flows through current limliting
The grid grade of resistance R5 and field-effect tube connects, and the drain of coil and field-effect tube connects, the source level ground connection of field-effect tube.
The setting of field-effect tube so that integrated circuit function is more stable.
Wherein, adjustable discharging gap includes first electrode and second electrode forms, and regulating mechanism is fixed with first electrode
First electrode is driven to use so that adjustable discharging gap changes, second electrode is electrically connected with fixed discharging gap.
Wherein, the spacing between first electrode and second electrode is 0.5-2mm.
The section setting of spacing, in order to adapt to different degree of protection.
Wherein, the spacing of fixed discharging gap is 0.1-1mm.
Adopt the structure design so that the discharging gap has relatively low discharge voltage.
Wherein, resetting apparatus is spring, and spring is located in the hollow space of coil, and one end and the pull rod of spring offset.
Spring reaction is rapid, can improve the reset speed of pull rod, while spring is set using such mode, can be reduced
Occupied space.
Description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment 1；
Fig. 2 is the circuit diagram of the utility model embodiment 1；
Fig. 3 is the circuit diagram of the utility model embodiment 2.
Specific embodiment
Embodiment 1：
With reference to shown in attached drawing 1-2, a kind of modular Surge Protector connects including housing 10, the first wire connection terminal 1, second
Line terminals 2, fixed discharging gap 3, adjustable discharging gap 4, regulating mechanism 5, wiring board 6, detection device and arc-extinguish chamber 7, can
Discharging gap 4 is adjusted to include first electrode 41 and second electrode 42, the first wire connection terminal 1 connect with first electrode 41, and herein the
One wire connection terminal 1 is specially A grades of circuit inputs；Second electrode 42 is fixed electrode, and second electrode 42 connects with adjustable discharging gap 4
It connects, adjustable discharging gap 4 is connect with the second wire connection terminal, and first electrode 41 is moving electrode herein, and first electrode 41 and second is electric
Spacing between pole 42 is 0.5-2mm, and fixed discharging gap 3 is constant clearance, and specific value is set according to actual demand, one
As a definite value between 0.1-1mm, discharging gap can be multiple herein, differ and be set to two.Arc-extinguish chamber 7 is located at adjustable put
Electric 4 top of gap, for arc extinguishing.
Fixed frame 11 is provided on housing 10, fixed frame 11 can be a part for housing 10.
Regulating mechanism 5 is arranged on fixed frame 11, and including coil 51 and pull rod 52, pull rod 52 connects with first electrode 41
It connects, the action of coil 51 pulls pull rod 52, while first electrode 41 is driven to act, and widens between first electrode 41 and second electrode 42
Gap, while resetting apparatus shrink, when coil 51 is failure to actuate, resetting apparatus reset so that first electrode 41 be returned to just
Beginning position, resetting apparatus is specially spring 9 herein, and spring 9 is located in the hollow space of coil 51, can be set in one on pull rod 52
End offsets with first electrode 41, and the other end offsets with fixed frame 9 or offsets with the capping of 4 end of coil.Spring 9 can also one
The end with pull rod 52 is held to offset, the other end offsets with fixed frame 9 or offsets with the capping of 4 end of coil.
It detects control module and includes detection unit, control unit and switch unit.
Detection unit, detection unit are specially mutual inductor 8, and mutual inductor 8, which is set in, adjusts discharging gap 4 and fixed discharging gap
On circuit between 3, when there is electric current to flow through, mutual inductor 8 generates sensing electric current.
Control unit 6 includes rectification unit 61, voltage regulation filtering unit 62 and current-limiting resistance R5.Switch unit is specially crystalline substance
Body triode BG1, the first wire connection terminal are connected with resistance R1 and first electrode, and second electrode is connect with the second wire connection terminal,
The other end of resistance R1 is connected with resistance R2 and resistance R3, and the other end of resistance R3 is connected with the second wire connection terminal,
The other end of resistance R2 is connected with the anode of resistance R4 and diode D3, the other end of resistance R4 and the second wire connection terminal
It is connected, the cathode of diode D3 is connected with the anode of one end of coil 51 and capacitance C2, the cathode and power supply of capacitance C2
Second wire connection terminal is connected, and the other end of coil 51 is connected with the collector of transistor BG1, transistor BG1
Emitter be connected with the second wire connection terminal of power supply, mutual inductor 8 is in parallel with the first wire connection terminal of rectifier bridge D1, rectifier bridge
The cathode of D1 is connected with the second wire connection terminal of power supply, the anode of rectifier bridge D1 and the anode of capacitance C1, resistance R5, resistance R6
And the cathode of diode D2 is connected, the anode of diode D2, the cathode of capacitance C1 are connected with the second wire connection terminal of power supply
It connects, the other end of R5 is connected with the ground level of BG1.
Its specific operation principle is as follows, and when having lightning current or overvoltage electric current flows through, voltage value is enough to hit simultaneously
It fastens and determines discharging gap 3 and adjustable discharging gap 4, overcurrent is released over the ground, while detection device mutual inductor 8 detects electricity
The ac voltage signal sensed is transmitted to rectification unit and ac voltage signal is transformed to DC voltage letter by stream, mutual inductor 8
Number, transistor is provided by current limliting current-limiting resistance R5 after voltage regulation filtering unit and pushes voltage signal, transistor
BG1 conductings make coil 51 generate powerful electromagnetic field, and coil 51 is attracted so as to pull pull rod 52, and pull rod 52 is driven between adjustable electric discharge
The first electrode 41 of gap, moment elongate the gap of first electrode 41 and second electrode 42, and electric arc is introduced arc-extinguish chamber 7 so as to reach
To the purpose of arc extinguishing, meanwhile, prevent power current from flowing into circuit.
Embodiment 2：
With reference to shown in attached drawing 3, difference lies in switch unit is field-effect tube BG2, is limited between embodiment 2 and embodiment 1
Leakage resistance R5 is connect with the grid grade of field-effect tube BG2, and coil 51 is connect with the drain of field-effect tube BG2, the source of field-effect tube BG2
Grade ground connection.
Claims (10)
1. a kind of modular Surge Protector, including between the first wire connection terminal, the second wire connection terminal and at least two electric discharges
Gap, the first wire connection terminal are connected with the second wire connection terminal by discharging gap；When there is overvoltage electric current or lightning current and voltage
When value reaches the threshold voltage of discharging gap, enable the circuit turn-on electric current between the first wire connection terminal and the second wire connection terminal
Pass through;It is characterized in that：Further include detection control module, regulating mechanism and arc-extinguish chamber；At least one discharging gap is adjustable
Discharging gap, remaining is that discharging gap is fixed interval (FI)；When detection control module whether there is electric current for detection circuit, if any
There is the gap then controlled to adjust between the adjustable discharging gap of mechanism increase in electric current；If no current exists, regulating mechanism control can
Discharging gap is adjusted to restore to the original state；Arc-extinguish chamber is located above adjustable discharging gap.
2. a kind of modular Surge Protector as described in claim 1, it is characterised in that：Regulating mechanism includes coil, pull rod
And resetting apparatus, pull rod are connect with an electrode of adjustable discharging gap, coil is sheathed on pull rod；When there are electric currents in circuit
When, detection control module control coil is powered, and the movement of coil drive pull rod realizes that the gap of adjustable discharging gap increases；Work as circuit
During middle no current, resetting apparatus drives pull rod to reset.
3. a kind of modular Surge Protector as claimed in claim 2, it is characterised in that：It detects control module and includes detection list
Member, control unit and switch unit, detection unit are used to whether there is electric current in detection circuit；Pass through control when there is current flow
Unit driving switch unit processed makes coil be powered, when no current, control coil power-off.
4. a kind of modular Surge Protector as claimed in claim 3, it is characterised in that：Detection device is mutual inductor, is arranged
On the circuit being connect in adjustable discharging gap with fixed discharging gap.
5. a kind of modular Surge Protector as claimed in claim 4, it is characterised in that：Switch unit is transistor,
Control module includes rectification unit, voltage regulation filtering unit and current-limiting resistance R5, and mutual inductor is in parallel with rectification unit, passes through voltage stabilizing
Filtering unit filters, the ground level for flowing through current-limiting resistance R5 and transistor connect, and the collector of coil and transistor connects
It connects, the emitter ground connection of transistor.
6. a kind of modular Surge Protector as claimed in claim 4, it is characterised in that：Switch unit is field-effect tube, control
Molding block include rectification unit, voltage regulation filtering unit and current-limiting resistance R5, the switch unit be field-effect tube, mutual inductor with
Rectification unit is in parallel, and by voltage regulation filtering unit filtering, the grid grade for flowing through current-limiting resistance R5 and field-effect tube connects, coil and field
The drain connection of effect pipe, the source level ground connection of field-effect tube.
7. a kind of modular Surge Protector as described in claim 1, it is characterised in that：Adjustable discharging gap includes the first electricity
Pole and second electrode composition, regulating mechanism is fixed with first electrode drives first electrode to use so that adjustable discharging gap becomes
Change, second electrode is electrically connected with fixed discharging gap.
8. a kind of modular Surge Protector as claimed in claim 7, it is characterised in that：Between first electrode and second electrode
Spacing be 0.5-2mm.
9. a kind of modular Surge Protector as described in claim 1, it is characterised in that：The spacing of fixed discharging gap is
0.1-1mm。
10. a kind of modular Surge Protector as claimed in claim 2, it is characterised in that：Resetting apparatus is spring, spring position
In the hollow space of coil, one end and the pull rod of spring offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721890713.5U CN207603207U (en) | 2017-12-28 | 2017-12-28 | A kind of modular Surge Protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721890713.5U CN207603207U (en) | 2017-12-28 | 2017-12-28 | A kind of modular Surge Protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207603207U true CN207603207U (en) | 2018-07-10 |
Family
ID=62769224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721890713.5U Expired - Fee Related CN207603207U (en) | 2017-12-28 | 2017-12-28 | A kind of modular Surge Protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207603207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919661A (en) * | 2017-12-28 | 2018-04-17 | 浙江多格电气有限公司 | A kind of modular Surge Protector |
| CN107919661B (en) * | 2017-12-28 | 2024-07-02 | 多格电气有限公司 | Modular surge protector |
-
2017
- 2017-12-28 CN CN201721890713.5U patent/CN207603207U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919661A (en) * | 2017-12-28 | 2018-04-17 | 浙江多格电气有限公司 | A kind of modular Surge Protector |
| CN107919661B (en) * | 2017-12-28 | 2024-07-02 | 多格电气有限公司 | Modular surge protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |