CN106329316B - A kind of open loop failure mode discharge tube - Google Patents
A kind of open loop failure mode discharge tube Download PDFInfo
- Publication number
- CN106329316B CN106329316B CN201610970253.0A CN201610970253A CN106329316B CN 106329316 B CN106329316 B CN 106329316B CN 201610970253 A CN201610970253 A CN 201610970253A CN 106329316 B CN106329316 B CN 106329316B
- Authority
- CN
- China
- Prior art keywords
- electrode
- discharge tube
- hole
- open loop
- sheet metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/15—Details of spark gaps for protection against excessive pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
Abstract
The invention discloses a kind of open loop failure mode discharge tube, including at least one insulation body and it is tightly connected respectively with the both ends for the body that insulate to form two electrodes of electric discharge inner chamber；Wherein, two electrodes are tightly connected by high-temperature solder and insulation body respectively, and the surface of emission on the inside of at least one electrode is provided with a through hole being through on the outside of electrode, and a sheet metal is fixed on the outside of electrode by solder and through hole is covered into sealing.Its overall structure of the invention is simple, sheet metal after through hole is set on electrode and covered using solder sealing, solder is melted when discharge tube generates heat, and has discharge cavity because the gas of fever expansion flicks sheet metal, outside air is entered discharge cavity makes electric discharge fail to form open circuit.
Description
Technical field
The present invention relates to discharge tube technical field, particularly a kind of open loop failure mode discharge tube.
Background technology
Gas-discharge tube is a kind of switching mode protection device, is used usually as overvoltage protecting device.Typically make at present
Gas-discharge tube（As shown in Figure 1）It is to be formed by insulation body and its both ends sealing electrode, inner chamber filling with inert gas.Work as gas
When the voltage at body electric discharge pipe electrode both ends exceedes the breakdown voltage of gas, gap discharge will be caused, the gas-discharge tube is rapid
Low resistance state is changed into from high-impedance state, conducting is formed, so as to protect other devices connected in parallel.But meanwhile if overvoltage
When the duration longer either frequency of occurrences is higher or long-time electric current or high current occurs, then gas-discharge tube is grown because bearing
Time or frequently overcurrent and causing heating up, too high temperature not only to influence the safety of other devices in circuit makes
With, and cause the gas-discharge tube short circuit or the risk burst to be present, or even the circuit board of client is burnt to form fire.
The Chinese invention patent that existing data of publication of application is on 05 25th, 2016, application publication number is CN105610049A
Application, it discloses a kind of gas-discharge tube, including at least one insulation body and close with the both ends difference of the insulation body
Envelope connection is to form the first electrode and second electrode of electric discharge inner chamber, by low between the first electrode and the insulation body
Warm seal bond thing is tightly connected, wherein, the clear height of the surface of emission for stretching into the electric discharge inner chamber of the first electrode is small more than 0
In or equal to 1.5 millimeters.The gas-discharge tube of the present invention can play lightning current of releasing when being subjected to thunderbolt or overvoltage surge
Or the function of overvoltage；Moreover, being subjected to certain follow current or super-high-current, the fusing low temperature is warming up to because of heating
During seal bond thing, sealing state failure, due to the surface of emission clear height very little of the electrode, extraneous air enters and contacted soon
Air blowout is carried out to the surface of emission, cuts off subsequent current rapidly.The burn-off rate of low temperature seal binding determines arc extinguishing
Speed, that is, determine the reaction time of cut-out subsequent current.Low temperature seal binding has certain thickness and width, institute
Certain melting time is needed to want low temperature seal binding that melting occurs；The characteristic of low temperature seal binding at normal temperatures is than high
The characteristic of warm seal bond thing wants poor, such as hardness；And because the welding of insulation body and metal is typically all to use elevated-temperature seal
Binding, if the quality of its welding can be reduced using low temperature seal binding, or even the security of discharge tube is had influence on, so
Becket is just provided with first with elevated-temperature seal binding and insulation pipe welding, then electrode and the becket utilization that metal will be belonged to together
Low temperature seal binding is welded.
The content of the invention
The technical problem to be solved in the present invention is to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of open loop failure mode is put
Fulgurite.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of open loop failure mode discharge tube, bag
Include at least one insulation body and be tightly connected respectively with the both ends of the insulation body to form the first electrode of electric discharge inner chamber
And second electrode；Wherein, the first electrode, second electrode are tightly connected by high-temperature solder and the insulation body respectively,
The surface of emission at least on the inside of first electrode is provided with a through hole being through on the outside of first electrode, and a sheet metal passes through eutectic welding
Material is fixed on the outside of the first electrode and the through hole is covered into sealing.
In above-mentioned technical proposal, spring is provided between the sheet metal and the first electrode.
In above-mentioned technical proposal, one is provided with the outside of the first electrode and is led to through hole insertion and internal diameter than described
Hole internal diameter wants big mounting groove, and the spring is installed in the mounting groove.
In above-mentioned technical proposal, the first electrode and second electrode are extended with integral metal pins.
In above-mentioned technical proposal, the inner surface setting of the sheet metal has emission center face.
In above-mentioned technical proposal, the area in the emission center face is identical with the cross-sectional area of the through hole.
The beneficial effects of the invention are as follows：Overall structure is simple, and through hole is set on electrode and uses solder closure
Sheet metal after conjunction, solder is melted when discharge tube generates heat, and have gas of the discharge cavity because of fever expansion by metal
Piece flicks, and outside air is entered discharge cavity makes electric discharge fail to form open circuit.
Brief description of the drawings
Fig. 1 is the structural representation of prior art；
Fig. 2 is the structural representation of the embodiment of the present invention one；
Fig. 3 is Fig. 2 cross section structure diagram；
Fig. 4 is the structural representation of the embodiment of the present invention two；
Fig. 5 is Fig. 4 decomposition texture schematic diagram；
Fig. 6 is the structural representation of the embodiment of the present invention three.
In figure, 1, insulation body；2nd, first electrode；3rd, high-temperature solder；4th, solder；5th, through hole；6th, sheet metal；7th, it is golden
Belong to pin；8th, spring；9th, second electrode.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Firstly, it is necessary to explanation is fusing point that high-temperature solder signified in the present invention and solder refer to solder, and
High temperature and low temperature be all it is relative, for the present invention, it is desirable to be exactly fixed sheet metal solder fusing point than fixed electricity
Pole is low with the fusing point of the solder for the body that insulate, and according to different discharge tubes and its environment applied, high-temperature solder and low temperature
The fusing point of solder can will not be repeated here according to actually being selected.Also the prior art in background technology is referred to.This hair
High-temperature solder in bright can be high temperature weld tabs, and solder can be eutectic welding piece.
Then embodiment one as shown in Figure 2,3, a kind of open loop failure mode discharge tube, including at least one insulation body
1 and with it is described insulation body 1 both ends be tightly connected respectively with formed electric discharge inner chamber first electrode 2 and second electrode 9；Its
In, first electrode 2 and second electrode 9 are tightly connected by high-temperature solder 3 and the insulation body 1 respectively, at least in the first electricity
The surface of emission of the inner side of pole 2 is provided with a through hole 5 for being through to the outside of first electrode 2, and a sheet metal 6 is fixed by solder 4
In the outside of first electrode 2 and the through hole 5 is covered into sealing.When discharge tube operational heat reaches certain temperature, eutectic welding
Material 4 can be slowly melted, and what is be melted first is contact position between solder 4 and electrode 2, because temperature is from discharge cavity
To two end electrodes transmission, so the contact position melts away first, sheet metal 6 is in the edge departed from, then due to being close in discharge cavity
The cavity of envelope, the gas in the seal cavity are expanded due to heating, so as to produce the pressure to two end electrodes, further
The disengaging of shell fragment is promoted, is flicked when sheet metal 6 is inflated gas impact, outside air can be because pressure difference be rapidly introduced into
In discharge cavity, so that electric discharge failure forms open circuit, the situation of short circuit can be avoided to occur.
Embodiment two as shown in Figure 4,5, the first electrode 2 are extended with integral metal pins 7.In order to facilitate electric discharge
The installation of pipe, and the influence not allowed between sheet metal 6 and conductive lead wire, it is integrally formed in first electrode 2 and second electrode 9
There are metal pins 7, improve installation effectiveness.
Embodiment three as shown in Figure 6, spring 8 is provided between the sheet metal 6 and the first electrode 2.Wherein,
The outside of first electrode 2 is provided with one and the through hole 5 insertion and the internal diameter mounting groove bigger than the internal diameter of through hole 5,
The spring 8 is installed in the mounting groove.Spring 8 is in confined state in normal state, can be ejected when sheet metal 6
When, the active force that sheet metal 6 is ejected can be strengthened due to the elastic restoring force of spring 8, sheet metal 6 is more accelerated
Ground is flicked, so as to shorten the time that air enters discharge cavity.
Preferably, can be in the interior table of the sheet metal 6 on the basis of embodiment one, embodiment two and embodiment three
Face is provided with emission center face.The area in the emission center face is identical with the cross-sectional area of the through hole 5.To make up through hole 5
The part surface of emission removed, ensure the service behaviour of discharge tube.
Embodiment above is merely illustrative and not limiting to the invention, therefore all according to described in present patent application scope
The equivalent change or modification done of method, be included in the range of present patent application.
Claims (5)
1. a kind of open loop failure mode discharge tube, including at least one insulation body and close with the both ends difference of the insulation body
Envelope is connected to form the first electrode and second electrode of electric discharge inner chamber, it is characterised in that：The first electrode, second electrode electrode
It is tightly connected respectively by high-temperature solder and the insulation body, the surface of emission at least on the inside of first electrode, which is provided with one, to be run through
Through hole on the outside of to first electrode, a sheet metal are fixed on the outside of the first electrode by solder and by the through hole lids
Close sealing；The inner surface setting of the sheet metal has emission center face.
A kind of 2. open loop failure mode discharge tube according to claim 1, it is characterised in that：The sheet metal with it is described
Spring is provided between first electrode.
A kind of 3. open loop failure mode discharge tube according to claim 2, it is characterised in that：On the outside of the first electrode
It is provided with one and is installed on the mounting groove with through hole insertion and the internal diameter mounting groove bigger than the through hole internal diameter, the spring
It is interior.
A kind of 4. open loop failure mode discharge tube according to claim 1 or 2, it is characterised in that：The first electrode and
Second electrode is extended with integral metal pins.
A kind of 5. open loop failure mode discharge tube according to claim 1, it is characterised in that：The face in the emission center face
Product is identical with the cross-sectional area of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970253.0A CN106329316B (en) | 2016-11-07 | 2016-11-07 | A kind of open loop failure mode discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970253.0A CN106329316B (en) | 2016-11-07 | 2016-11-07 | A kind of open loop failure mode discharge tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106329316A CN106329316A (en) | 2017-01-11 |
| CN106329316B true CN106329316B (en) | 2018-03-02 |
Family
ID=57816727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610970253.0A Active CN106329316B (en) | 2016-11-07 | 2016-11-07 | A kind of open loop failure mode discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329316B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275926B (en) * | 2017-05-08 | 2022-05-24 | 隆科电子(惠阳)有限公司 | A clearance structure that is used for surge protection to have multilayer big aperture insulator ring |
| CN107658695B (en) * | 2017-11-08 | 2023-01-06 | 深圳市瑞隆源电子有限公司 | Open-circuit failure mode discharge tube of external failure device and electronic circuit thereof |
| CN108306173A (en) * | 2017-12-22 | 2018-07-20 | 广东百圳君耀电子有限公司 | Gas-discharge tube |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0242590A1 (en) * | 1986-04-22 | 1987-10-28 | Siemens Aktiengesellschaft | Gas-discharge surge arrester |
| CN101868889A (en) * | 2007-11-21 | 2010-10-20 | 埃普科斯股份有限公司 | Overvoltage arrester having thermal overload protection |
| CN105826149A (en) * | 2015-12-04 | 2016-08-03 | 深圳市槟城电子有限公司 | Gas discharge tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206211265U (en) * | 2016-11-07 | 2017-05-31 | 深圳市瑞隆源电子有限公司 | A kind of open loop failure mode discharge tube |
-
2016
- 2016-11-07 CN CN201610970253.0A patent/CN106329316B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0242590A1 (en) * | 1986-04-22 | 1987-10-28 | Siemens Aktiengesellschaft | Gas-discharge surge arrester |
| CN101868889A (en) * | 2007-11-21 | 2010-10-20 | 埃普科斯股份有限公司 | Overvoltage arrester having thermal overload protection |
| CN105826149A (en) * | 2015-12-04 | 2016-08-03 | 深圳市槟城电子有限公司 | Gas discharge tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106329316A (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106329316B (en) | A kind of open loop failure mode discharge tube | |
| WO2017198080A1 (en) | Arc-preventing fast-breaking surge protection apparatus | |
| JP7394877B2 (en) | Induction fuse that sequentially ruptures the conductor and fusible material | |
| WO2022121205A1 (en) | Two-break excitation fuse having staged breaking | |
| CN206211265U (en) | A kind of open loop failure mode discharge tube | |
| CN105097386A (en) | Gas discharge tube with thermal protection | |
| JP7316367B2 (en) | Multiple fracture induced fuses using a combination of mechanical cutting and fusing | |
| JP2011504282A (en) | Surge arrester with thermal overload protection | |
| CN101868889B (en) | Overvoltage arrester having thermal overload protection | |
| WO2017143796A1 (en) | Gas discharge tube | |
| CN216054559U (en) | Fuse and vehicle | |
| CN207234392U (en) | A kind of surge protector | |
| JP7352658B2 (en) | A fuse that ruptures the fusible material by blowing or cutting by mechanical force. | |
| CN206163439U (en) | Novel surge protection device | |
| CN207353644U (en) | The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device | |
| CN205177764U (en) | Gas discharge tube | |
| CN209912827U (en) | Gas discharge structure capable of bearing current and electric arc | |
| CN113808894A (en) | Overvoltage protection device, gas discharge tube and preparation method thereof | |
| CN207149878U (en) | A kind of gas-discharge tube with cutting function | |
| CN111613493A (en) | High-voltage current-limiting fusing protection device | |
| CN203967740U (en) | Can guarantee the novel surge protective device of hot releasing mechanism action | |
| CN210865980U (en) | Arc extinguishing device | |
| CN203787378U (en) | Over-current protector with voltage-releasing function | |
| CN216161679U (en) | Active fault-removing gas discharge tube and overvoltage protection device | |
| CN205583049U (en) | Safety power supply structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |