CN206211265U - A kind of open loop failure mode discharge tube - Google Patents
A kind of open loop failure mode discharge tube Download PDFInfo
- Publication number
- CN206211265U CN206211265U CN201621193883.3U CN201621193883U CN206211265U CN 206211265 U CN206211265 U CN 206211265U CN 201621193883 U CN201621193883 U CN 201621193883U CN 206211265 U CN206211265 U CN 206211265U
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- CN
- China
- Prior art keywords
- electrode
- discharge tube
- hole
- open loop
- failure mode
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of open loop failure mode discharge tube, including at least one insulation body and it is tightly connected to form two electrodes of electric discharge inner chamber respectively with the two ends of insulation body；Wherein, two electrodes are tightly connected by high-temperature solder with 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 electrode outside and through hole is covered into sealing by solder.Its overall structure of the utility model is simple, through hole is set on the electrode and sheet metal after being covered using solder sealing, solder is melted when discharge tube generates heat, and there is discharge cavity to flick sheet metal because of the gas of fever expansion, make outside air make electric discharge fail to form open circuit into discharge cavity.
Description
Technical field
The utility model is related 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 two ends sealing electrode, inner chamber filling with inert gas.Work as gas
When the voltage at body electric discharge pipe electrode two 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 the overvoltage
When duration is more long or the frequency of occurrences is higher or long-time electric current or high current occurs, then gas-discharge tube is because bearing length
Time or frequently overcurrent and cause heating up, the too high temperature not only to influence the safety of other devices in circuit to make
With, and cause that the gas-discharge tube has short circuit or the risk for bursting, or even the circuit board of client is burnt to form fire.
The Chinese utility model that existing Shen Qing Publication day is on 05 25th, 2016, application publication number is CN105610049A
Patent application, it discloses a kind of gas-discharge tube, including at least one insulation body and the two ends point with the insulation body
It is not tightly connected to form the first electrode and second electrode of electric discharge inner chamber, leads between the first electrode and the insulation body
Low temperature seal bond thing is crossed to be tightly connected, wherein, the clear height of the surface of emission for stretching into the electric discharge inner chamber of the first electrode is big
1.5 millimeters are less than or equal in 0.Gas-discharge tube of the present utility model can be played when thunderbolt or overvoltage surge is undergone
The function of lightning current or the overvoltage of releasing；And, undergoing certain follow current or super-high-current, it is warming up to because of heating molten
When changing the low temperature seal binding, sealing state failure, due to the surface of emission clear height very little of the electrode, extraneous air is soon
Into and touch the surface of emission and carry out air blowout, subsequent current is cut off rapidly.The burn-off rate of low temperature seal binding is determined
Determine the speed of arc extinguishing, that is, determine the reaction time of cut-out subsequent current.Low temperature seal binding has certain thickness
Degree and width, so wanting low temperature seal binding that melting occurs needs certain melting time；Low temperature seal binding is in normal temperature
Under characteristic it is poorer than the characteristic of elevated-temperature seal binding, such as hardness；And because insulation body is typically all with the welding of metal
Using elevated-temperature seal binding, if its quality welded can be reduced using low temperature seal binding, or even discharge tube is had influence on
Security, so being just provided with becket first with elevated-temperature seal binding and insulation pipe welding, then the electricity that metal will be belonged to together
Welded using low temperature seal binding with becket pole.
Utility model content
The technical problems to be solved in the utility model is directed to above-mentioned the deficiencies in the prior art, there is provided a kind of open failure mould
Formula discharge tube.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of open loop failure mode electric discharge
Pipe, including at least one insulation body and be tightly connected to form electric discharge two of inner chamber respectively with the two ends of the insulation body
Electrode；Wherein, described two electrodes are tightly connected by high-temperature solder with the insulation body respectively, in electricity described at least one
The surface of emission on the inside of pole is provided with a through hole being through on the outside of electrode, and a sheet metal is fixed on the electrode by solder
The through hole is simultaneously covered sealing by outside.
In above-mentioned technical proposal, spring is provided between the sheet metal and the electrode.
In above-mentioned technical proposal, one is provided with the outside of the electrode with the through hole insertion and internal diameter than in the through hole
Big mounting groove, the spring is wanted to be installed in the mounting groove in footpath.
In above-mentioned technical proposal, the electrode is extended with the metal pins of one.
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 utility model are：Overall structure is simple, through hole is set on electrode and uses solder close
Sheet metal after capping conjunction, melts solder when discharge tube generates heat, and has discharge cavity to be incited somebody to action because of the gas of fever expansion
Sheet metal is flicked, and makes outside air make electric discharge fail to form open circuit into discharge cavity.
Brief description of the drawings
Fig. 1 is the structural representation of prior art；
Fig. 2 is the structural representation of the utility model embodiment one；
Fig. 3 is the cross section structure diagram of Fig. 2；
Fig. 4 is the structural representation of the utility model embodiment two；
Fig. 5 is the decomposition texture schematic diagram of Fig. 4；
Fig. 6 is the structural representation of the utility model embodiment three.
In figure, 1, insulation body；2nd, electrode；3rd, high-temperature solder；4th, solder；5th, through hole；6th, sheet metal；7th, metal draws
Pin；8th, spring.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Firstly, it is necessary to explanation is that high-temperature solder signified in the utility model and solder refer to the molten of solder
Point, and high temperature and low temperature are all relative, for the utility model, it is desirable to be exactly fixed sheet metal solder fusing point
It is lower with the fusing point of the solder of insulation body than fixed electrode, and according to different discharge tubes and its environment applied, high temperature weldering
The fusing point of material and solder can will not be repeated here according to actually being selected.Also refer to existing in background technology
Technology.High-temperature solder in the utility model 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 two ends be tightly connected respectively with formed electric discharge inner chamber two electrodes 2；Wherein, described two electricity
Pole 2 is tightly connected by high-temperature solder 3 with the insulation body 1 respectively, and the surface of emission in the inner side of electrode described at least one 2 sets
It is equipped with a through hole 5 for being through to the outside of electrode 2, a sheet metal 6 is fixed on the outside of the electrode 2 and by institute by solder 4
State through hole 5 and cover sealing.When discharge tube operational heat reaches uniform temperature, solder 4 can slowly be melted, and be melt first
What is changed is the contact position between solder 4 and electrode 2, because temperature passes transmission from discharge cavity to two end electrodes 2, this connects
Synapsis melts away first, and sheet metal 6 is in the edge for departing from, then due to being the cavity of sealing in discharge cavity, in the seal cavity
Gas is expanded due to heating, so as to produce the pressure to two end electrodes 2, further promotes the disengaging of shell fragment, works as gold
Category piece 6 is inflated gas impact and flicks, and outside air can be because pressure difference be rapidly introduced into discharge cavity, so that electric discharge is lost
Effect forms open circuit, and the situation of short circuit can be avoided to occur.
Embodiment two as shown in Figure 4,5, the electrode 2 is extended with the metal pins 7 of one.Discharge tube for convenience
Install, and the influence not allowed between sheet metal 6 and conductive lead wire, in electrode 2 integrally formed with metal pins 7, improve and install
Efficiency.
Embodiment three as shown in Figure 6, is provided with spring 8 between the sheet metal 6 and the electrode 2.Wherein, in institute
State the outside of electrode 2 and be provided with one with the insertion of the through hole 5 and the internal diameter mounting groove bigger than the internal diameter of the through hole 5, the spring 8
It is installed in the mounting groove.Spring 8 is in confined state in normal state, when sheet metal 6 can be ejected, can be by
Strengthen the active force that sheet metal 6 is ejected in the elastic restoring force of spring 8, sheet metal 6 is even more rapidly flicked,
So as to shorten air into the time of discharge cavity.
Preferably, on the basis of embodiment one, embodiment two and embodiment three, can be in the interior table of the sheet metal 6
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 for being removed, it is ensured that the service behaviour of discharge tube.
Embodiment above is to indicate that rather than limitation the utility model, therefore all according to the utility model patent application
The equivalent change or modification that method described in scope is done, is included in the utility model patent claim.
Claims (6)
1. a kind of open loop failure mode discharge tube, including at least one insulation body and close with the two ends difference of the insulation body
Envelope connects to form two electrodes of electric discharge inner chamber, it is characterised in that：Described two electrodes respectively by high-temperature solder with it is described
Insulation body is tightly connected, and the surface of emission on the inside of electrode described at least one is provided with a through hole being through on the outside of electrode,
One sheet metal is fixed on the electrode outside and the through hole is covered into sealing by solder.
2. a kind of 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 electrode.
3. a kind of open loop failure mode discharge tube according to claim 2, it is characterised in that：Set on the outside of the electrode
Have one with the through hole insertion and the internal diameter mounting groove bigger than the through hole internal diameter, the spring is installed in the mounting groove.
4. a kind of open loop failure mode discharge tube according to claim 1 and 2, it is characterised in that：The electrode is extended with
The metal pins of one.
5. a kind of open loop failure mode discharge tube according to claim 1, it is characterised in that：The inner surface of the sheet metal
It is provided with emission center face.
6. a kind of open loop failure mode discharge tube according to claim 5, 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 |
|---|---|---|---|
| CN201621193883.3U CN206211265U (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 |
|---|---|---|---|
| CN201621193883.3U CN206211265U (en) | 2016-11-07 | 2016-11-07 | A kind of open loop failure mode discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211265U true CN206211265U (en) | 2017-05-31 |
Family
ID=58752879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621193883.3U Withdrawn - After Issue CN206211265U (en) | 2016-11-07 | 2016-11-07 | A kind of open loop failure mode discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329316A (en) * | 2016-11-07 | 2017-01-11 | 深圳市瑞隆源电子有限公司 | Open circuit failure mode discharge tube |
| CN109936124A (en) * | 2017-12-15 | 2019-06-25 | 中兴通讯股份有限公司 | A kind of Security Unit |
-
2016
- 2016-11-07 CN CN201621193883.3U patent/CN206211265U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329316A (en) * | 2016-11-07 | 2017-01-11 | 深圳市瑞隆源电子有限公司 | Open circuit failure mode discharge tube |
| CN109936124A (en) * | 2017-12-15 | 2019-06-25 | 中兴通讯股份有限公司 | A kind of Security Unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170531 Effective date of abandoning: 20180302 |
|
| AV01 | Patent right actively abandoned |