CN207638332U - One kind having the adjustable arrester of discharging gap - Google Patents
One kind having the adjustable arrester of discharging gap Download PDFInfo
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- CN207638332U CN207638332U CN201721890587.3U CN201721890587U CN207638332U CN 207638332 U CN207638332 U CN 207638332U CN 201721890587 U CN201721890587 U CN 201721890587U CN 207638332 U CN207638332 U CN 207638332U
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- discharging gap
- adjustable
- electrode
- connecting terminal
- gap
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Abstract
The utility model discloses one kind having the adjustable arrester of discharging gap comprising the first connecting terminal, the second connecting terminal and at least two discharging gaps, the first connecting terminal are connected with the second connecting 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 connecting terminal and the second connecting terminal is enable to pass through；Wherein, further include pull unit, resetting apparatus and arc-extinguish chamber；One of discharging gap is adjustable discharging gap, and when overvoltage overvoltage or lightning current flow through adjustable discharging gap, pull unit drives adjustable discharge gap distance to become larger；Resetting apparatus for driving adjustable discharge gap distance to restore normal, arc-extinguish chamber be located at adjustable discharging gap be nearby used to eliminate become larger because of discharging gap after the electric arc that generates；The utility model has：The features such as separating power frequency continued flow.
Description
Technical field
The utility model is related to one kind having the adjustable arrester of discharging gap.
Background technology
The transmission line of electricity first order mostly uses the lightning protection of responsive type electronic component and clearance type switch lightning protection device.Clearance type switch is anti-
Thunder device generally use discharging gap, gas-discharge tube, thyratron and triacs are as component.And discharging gap
For fixed interval (FI), only transmission line of electricity there is overvoltage or surge occur and voltage be more than discharging gap threshold values ignition power
When pressure, discharging gap conducting electric discharge, most of electric current of transmission line of electricity is released over the ground, and the overvoltage of circuit is made to be limited in one very
Low range is to protect follow-up electrical equipment and electronic equipment from broken by lightning.And transmission line of electricity is without surge when occurring,
It is in high impedance status that gap type, which switchs lightning protection device, therefore the power current in transmission line of electricity can not switch lightning protection device by clearance type.
When overvoltage or surge appearance occurs in transmission line of electricity and voltage is more than the threshold values ignition voltage of discharging gap, discharging gap is led
Logical, the power current in transmission line of electricity can also flow through therewith.
Above-mentioned clearance type switch lightning protection device has the following defects：
1, when overvoltage occurs or is struck by lightning moment, power current is as discharging gap conducting flows into circuit
Existing power frequency continued flow, cause in circuit by protection equipment damage.
Therefore, provide that a kind of ignition power forces down, insulation resistance is high, manufacture craft is simple, production cost is low, reduces power frequency electric
The first order clearance type switch lightning protection device that stream passes through is particularly important.
Invention content
The utility model realizing the adjustable lightning-arrest with discharging gap of quick assembling in view of the above problems, offer is a kind of
Device.
The purpose of utility model of the utility model is realized by following scheme：One kind has discharging gap adjustable lightning-arrest
Device comprising the first connecting terminal, the second connecting terminal and at least two discharging gaps, the first connecting terminal and the second wiring
Terminal is connected by discharging gap；When there is overvoltage electric current or lightning current and voltage value reaches the threshold voltage of discharging gap
When, so that the circuit turn-on electric current between the first connecting terminal and the second connecting terminal is passed through；Wherein, further include pulling dress
It sets, resetting apparatus and arc-extinguish chamber；One of discharging gap is adjustable discharging gap, when overvoltage overvoltage or lightning current stream
When through adjustable discharging gap, pull unit drives adjustable discharge gap distance to become larger；Resetting apparatus is used to drive between adjustable electric discharge
Gap range recovery is normal, arc-extinguish chamber be located at adjustable discharging gap nearby for eliminate become larger because of discharging gap after the electric arc that generates.
The arrester of above structure is connected in circuit, when there is lightning current in transmission line of electricity or overvoltage electric current is pressed,
When overvoltage value is more than the threshold values of discharging gap, discharging gap conducting electric discharge, electric current can be let out across discharging gap at this time
It puts.Lightning current or overvoltage electric current pressure from occurring disappearance be very rapidly, therefore while discharging gap be connected, pulling
Device rapidly becomes larger the gap of adjustable discharging gap, prevents power current from entering generation power frequency continued flow, plays cut-out power frequency electric
The effect of stream, simultaneously because adjustable discharging gap, during gradually being become larger, electrical discharge arc, which is elongated, to be fallen into arc-extinguish chamber
Realize arc extinguishing, after overvoltage electric current or lightning current disappear resetting apparatus for drive adjustable discharge gap distance restore normally with
It is protected again for overvoltage electric current next time or lightning current appearance.
Wherein, the pull unit includes coil and pull rod, and coil is sheathed on pull rod, and one end of pull rod is put with adjustable
One electrode in electric gap is fixed；Coil tandem generates magnetic field force in circuit when lightning current or overvoltage electric current flowing through coil,
Drive pull rod movement to drive electrode movement to increase the distance of adjustable discharging gap.
The pull unit adopted the structure, when there is lightning current or overvoltage electric current makes discharging gap be connected,
In circuit due to coil tandem, electric current coil after coil generates magnetic field force, and magnetic field force can drive pull rod to move, to band
The electrode movement for moving adjustable discharging gap realizes that adjustable discharge gap distance increases, and prevents power current from entering；Pass through such knot
Structure can make the distance of adjustable discharging gap change by independently being realized in discharge process.
Wherein, resetting apparatus is spring, and spring is connected with one end of pull rod, the spring shape when pull rod is magnetic field force induced mobile
Become, when magnetic field force disappears, spring drives pull rod to reset.
The design of spring so that when magnetic field force occurs in coil, pull rod moves so that spring deformation, the bullet after magnetic field force disappearance
Spring drives pull rod to reset, to realize that adjustable discharge gap distance restores normal.
Wherein, further include fixed frame, coil is fixed on fixed frame, and spring is located in the hollow space of coil.
The design of fixed frame is convenient for the fixation of coil, spring that can play and subtract using being arranged in the hollow space of coil
Small occupied space, convenient for the effect coordinated with pull rod.
Wherein, adjustable discharging gap includes electrode I and electrode II, and fixed interval (FI) includes electrode III and electrode IV；The
One connecting terminal is electrically connected with electrode I, and electrode II is electrically connected with electrode III, and electrode IV electrically connects with the second connecting terminal
It connects.
Wherein, remaining discharging gap is fixed interval (FI).
Wherein, the first connecting terminal is connect with electrode I by coil electric.
It adopts the structure so that overall structure is more simplified, and coil can directly generate magnetic field force.
Wherein, electrode I and one end fixed random pull rod of pull rod move, and electrode II is fixed setting.
It adopts the structure, in order to which pull rod pulls electrode I to move so that it increases at a distance from electrode II.
Wherein, the initial spacing of adjustable discharging gap is 0.5-2mm.
Spacing is arranged using such section, in order to adapt to different degree of protection.
Wherein, the spacing of fixed interval (FI) is 0.1-1mm.
Adopt the structure design so that the discharging gap has lower discharge voltage.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment 1.
Specific implementation mode
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail：
Embodiment one：
With reference to shown in attached drawing 1, one kind having the adjustable arrester of discharging gap comprising shell 1, the first connecting terminal 2,
Second discharging gap of connecting terminal 3, two, coil 4, pull rod 5, spring and the shield 6 that goes out.
First connecting terminal 2,3, two discharging gaps of the second connecting terminal, coil 4, pull rod 5, spring and the shield 6 that goes out
It is respectively provided within the case 1.
First connecting terminal 2, the second connecting terminal 3 can be used for wiring, for example, by the arrester arrester be connected in parallel on by
Protect the front side of electric appliance.
Two discharging gaps, one of them is fixed interval (FI) 7, another is adjustable discharging gap 8.
Adjustable discharging gap 8 includes that I 8a of electrode and electrode II 8b, I 8a of electrode and II 8b of electrode are that interval is arranged, electrode
The initial gap of I 8a and II 8b of electrode is 0.5-2mm.Fixed interval (FI) 7 include III 7a of electrode and electrode IV 7b, III 7a of electrode with
IV 7b of electrode is that interval is arranged, the interval 0.1-1mm between IV 7b of III 7a of electrode and electrode.
One end of first connecting terminal 2 and coil 4 is formed by conducting wire to be electrically connected, the other end of electrode I 8a and coil 4
It realizes and is electrically connected also by conducting wire.II 8b of electrode and III 7a of electrode is formed by conducting wire and is electrically connected, electrode IV 7b and second
Connecting terminal 3 is formed by conducting wire and is electrically connected.
Coil 4 is fixed on fixed frame 9, and fixed frame 9 can be a part for shell 1.Coil 4 is set on pull rod 5, is drawn
5 part of bar is stretched out by coil 4, and extension and I 8a of electrode of pull rod 5 are fixed setting.Spring 10 is located at the hollow interior of coil 4
In portion, one end offsets with I 8a of electrode, and the other end offsets with fixed frame 9 or offsets with the capping of 4 end of coil.In addition to this,
Spring 10 can also be arranged in the end of pull rod 5, and the end of the left end and pull rod 5 of spring 10 offsets, the right end of spring 10 with it is solid
Determine frame 9 to offset or offset with the capping of 4 end of coil.
When coil 4 has electric current to pass through, coil 4 generates magnetic field force, and pull rod 5 is retracted under the force effect of magnetic field inside coil 4,
Moment, which pulls open I 8a of electrode, simultaneously makes it away from II 8b of electrode（Namely adjustable 8 distance of discharging gap becomes larger）, between adjustable electric discharge
8 distance of gap becomes larger metapedes prevents power frequency continued flow situation from occurring to separate power current, and pull rod 5 can squeeze spring during being retracted to be made
Obtain spring deformation.When magnetic field force disappears, spring restores deformation to which pushing drawing rod 5 stretches out so that I 8a of electrode is close to electricity
II 8b of pole, it is final so that the interval of I 8a of electrode and II 8b of electrode restores initial（The namely range recovery of adjustable discharging gap 8
Normally）.Therefore, coil 4 is equivalent to a pull unit with pull rod 5 herein, and spring is equivalent to a resetting apparatus.
The shield 6 that goes out is located at the top of adjustable discharging gap 8.
The concrete operating principle of the present embodiment is as follows：
When lightning current occurs in transmission line of electricity, overvoltage value is more than the threshold values of adjustable discharging gap 8 and fixed interval (FI) 7
When, adjustable discharging gap 8 and fixed interval (FI) 7 simultaneously turn on（The first connecting terminal 2 is equivalent to be connected to the second connecting terminal 3）
Electric discharge, electric current flow to another connecting terminal by one of connecting terminal and release.While electric current passes through coil 4,
Coil 4 generates strong-electromagnetic field under the powerful function of current, and pull rod 5 is retracted that I 8a of electrode is pulled to move under the force effect of magnetic field
Dynamic, the generation of lightning current herein is very rapid to disappearing, therefore allows for the interval of I 8a of electrode and II 8b of electrode in a flash
Increase（It can discharge gap distance increase）, prevent power current from entering in circuit to play, play partition power frequency continued flow
Effect.Electrical discharge arc, which is elongated, simultaneously fairly falls in arc-extinguish chamber to quick blow-out, and coil 4 is lost the job electric current after extinguishing arc,
The Rapid reset under the action of the spring of pull rod 5, to can discharging gap restore the normal appearance for waiting for overvoltage next time from
And complete an overvoltage protection.
Claims (10)
1. one kind having the adjustable arrester of discharging gap comprising the first connecting terminal, the second connecting terminal and at least two
A discharging gap, the first connecting terminal are connected with the second connecting terminal by discharging gap；When there is overvoltage electric current or thunder and lightning
Stream and voltage value is when reaching the threshold voltage of discharging gap, makes the circuit turn-on between the first connecting terminal and the second connecting terminal
Electric current is passed through；It is characterized in that：Further include pull unit, resetting apparatus and arc-extinguish chamber；One of discharging gap is
Adjustable discharging gap, when overvoltage overvoltage or lightning current flow through adjustable discharging gap, pull unit drives between adjustable electric discharge
Stand-off distance is from becoming larger；For resetting apparatus for driving adjustable discharge gap distance to restore normal, it is attached that arc-extinguish chamber is located at adjustable discharging gap
Closely it is used to eliminate the electric arc generated after becoming larger because of discharging gap.
2. having the adjustable arrester of discharging gap as described in claim 1, it is characterised in that：The pull unit includes line
Circle and pull rod, coil are sheathed on pull rod, and one end of pull rod and an electrode of adjustable discharging gap are fixed；Coil tandem is in electricity
Lu Zhong, generates magnetic field force when lightning current or overvoltage electric current flowing through coil, the movement of driving pull rod to drive electrode movement with
Increase the distance of adjustable discharging gap.
3. having the adjustable arrester of discharging gap as claimed in claim 2, it is characterised in that：Resetting apparatus is spring, bullet
Spring is connected with one end of pull rod, the spring deformation when pull rod is magnetic field force induced mobile, and when magnetic field force disappears, spring drives pull rod multiple
Position.
4. having the adjustable arrester of discharging gap as claimed in claim 3, it is characterised in that：Further include fixed frame, coil
It is fixed on fixed frame, spring is located in the hollow space of coil.
5. as claimed in claim 1 or 2 or 3 or 4 has the adjustable arrester of discharging gap, it is characterised in that：Remaining electric discharge
Gap is fixed interval (FI).
6. having the adjustable arrester of discharging gap as claimed in claim 5, it is characterised in that：The spacing of fixed interval (FI) is
0.1-1mm。
7. having the adjustable arrester of discharging gap as claimed in claim 5, it is characterised in that：Adjustable discharging gap includes electricity
Pole I and electrode II, fixed interval (FI) include electrode III and electrode IV；First connecting terminal is electrically connected with electrode I, electrode II
It is electrically connected with electrode III, electrode IV and the second connecting terminal are electrically connected.
8. having the adjustable arrester of discharging gap as claimed in claim 7, it is characterised in that：First connecting terminal and electrode
I is connected by coil electric.
9. having the adjustable arrester of discharging gap as claimed in claim 7 or 8, it is characterised in that：Electrode I is used for and pull rod
Fixed, electrode II is fixed setting.
10. there is the adjustable arrester of discharging gap as described in claims 1 or 2 or 3 or 4 or 6 or 7, it is characterised in that：It can
It is 0.5-2mm to adjust the initial spacing of discharging gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721890587.3U CN207638332U (en) | 2017-12-28 | 2017-12-28 | One kind having the adjustable arrester of discharging gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721890587.3U CN207638332U (en) | 2017-12-28 | 2017-12-28 | One kind having the adjustable arrester of discharging gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207638332U true CN207638332U (en) | 2018-07-20 |
Family
ID=62851035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721890587.3U Expired - Fee Related CN207638332U (en) | 2017-12-28 | 2017-12-28 | One kind having the adjustable arrester of discharging gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207638332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923263A (en) * | 2018-08-22 | 2018-11-30 | 东莞市华炜雷电防护设备有限公司 | A kind of variable discharging gap apparatus of automatic arc extinguishing |
| CN110164638A (en) * | 2019-05-16 | 2019-08-23 | 山东电力设备有限公司 | The electric transmission line lightning arrester device of the air gap is adjusted according to environmental data |
| CN110718856A (en) * | 2019-09-20 | 2020-01-21 | 陆红阳 | Join in marriage net automatic arc control device |
-
2017
- 2017-12-28 CN CN201721890587.3U patent/CN207638332U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923263A (en) * | 2018-08-22 | 2018-11-30 | 东莞市华炜雷电防护设备有限公司 | A kind of variable discharging gap apparatus of automatic arc extinguishing |
| CN110164638A (en) * | 2019-05-16 | 2019-08-23 | 山东电力设备有限公司 | The electric transmission line lightning arrester device of the air gap is adjusted according to environmental data |
| CN110164638B (en) * | 2019-05-16 | 2024-02-23 | 山东电力设备有限公司 | Power transmission line lightning arrester device for adjusting air gap according to environmental data |
| CN110718856A (en) * | 2019-09-20 | 2020-01-21 | 陆红阳 | Join in marriage net automatic arc control device |
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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: 20180720 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |