CN207353644U - The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device - Google Patents
The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device Download PDFInfo
- Publication number
- CN207353644U CN207353644U CN201721477596.XU CN201721477596U CN207353644U CN 207353644 U CN207353644 U CN 207353644U CN 201721477596 U CN201721477596 U CN 201721477596U CN 207353644 U CN207353644 U CN 207353644U
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- China
- Prior art keywords
- porcelain tube
- disabling device
- termination electrode
- tube
- failure mode
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Abstract
The utility model discloses the open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device, its discharge tube includes the two end electrodes of porcelain tube and the port closed for penetrating through porcelain tube both ends, welded between porcelain tube and termination electrode by solder sheet, the inner surface of the two end electrodes is internally formed discharging gap in porcelain tube；It is provided outside a disabling device in porcelain tube, the disabling device is limited on the outer surface of porcelain tube, the termination electrode of one end is extended with an elastic component thereto from disabling device, the elastic component overcomes the outer end face of elastic force and termination electrode to weld by solder, when the solder failure, elastic piece is disconnected with termination electrode；Disabling device is equipped with termination electrode two discharge electrodes of formation of a pin, the pin and the other end.Open failure mode is changed into external mode by the utility model by the opening of termination electrode, solves the problems, such as easy gas leakage in the prior art.
Description
Technical field
Discharge tube technical field is the utility model is related to, particularly a kind of open loop failure mode electric discharge of external disabling device
Pipe and its electronic circuit.
Background technology
Gas-discharge tube is a kind of switching mode protection device, is used usually as overvoltage protecting device.Generally make at present
Gas-discharge tube（As shown in Figure 1）It is to be formed by insulation tube body and its both ends sealing electrode, inner cavity 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 frequent overcurrent and the safety that causes heating up, excessive temperature and can not only influence other devices in circuit make
With, and cause the gas-discharge tube to there is short circuit or the risk burst, or even the circuit board of client is burnt to form fire.
The Chinese invention patent application of Publication No. CN106329316A, it discloses a kind of electric discharge of open loop failure mode
Pipe, its by using high temperature weld tabs and low temperature weld tabs combination, termination electrode electric discharge generate heat after make low temperature weld tabs melt and
Make discharge tube open failure.But the program has following deficiency：The use of low temperature weld tabs, in the fabrication process due to processing
Technological problems be easy to cause leak rate height and cause yield rate low, and quality is unstable.
Utility model content
The technical problems to be solved in the utility model is in view of the above shortcomings of the prior art, there is provided a kind of external failure dress
The open loop failure mode discharge tube and its electronic circuit put.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of external disabling device is opened
Road failure mode discharge tube, including the two end electrodes of porcelain tube and the port closed for penetrating through porcelain tube both ends, porcelain tube and termination electrode
Between welded by solder sheet, the inner surface of the two end electrodes is internally formed discharging gap in porcelain tube；It is set outside porcelain tube
There is a disabling device, which is limited on the outer surface of porcelain tube, and the end of one end is electric thereto from disabling device
Pole is extended with an elastic component, which overcomes the outer end face of elastic force and termination electrode to weld by solder, when the solder failure
When, elastic piece is disconnected with termination electrode；Disabling device is equipped with a pin, two electric discharges of termination electrode formation of the pin and the other end
Pole.
In above-mentioned technical proposal, the outer surface of the porcelain tube is corresponding formed with limiting groove or spacing block set, described
Disabling device is limited on the limiting groove or spacing block set.
In above-mentioned technical proposal, the porcelain tube includes the first porcelain tube and the second porcelain tube, and the first porcelain tube and the second porcelain tube pass through
Solder sheet is welded, and the incomplete limiting groove or spacing block set are equipped with the first porcelain tube, is set on the second porcelain tube
There are the incomplete limiting groove or spacing block set, first porcelain tube to form the complete limit after being combined with the second porcelain tube
Position groove or spacing block set.
In above-mentioned technical proposal, the outer end face center of the termination electrode is recessed inwardly, inner face is centrally formed boss,
Boss is placed in porcelain tube, and the table top of the boss is as discharge face.
In above-mentioned technical proposal, formed in place of the connection of the elastic component and termination electrode positioned at the termination electrode outer end face
Depression outside position.
In above-mentioned technical proposal, the disabling device includes the annular body of opening, which exists from the opening sleeve
On porcelain tube.
In above-mentioned technical proposal, the elastic component includes vertical section, horizontal segment and bending section, and vertical section is from disabling device
Extend, the outer end face that termination electrode is spanned to from vertical section is supported by horizontal segment, bending section is bent to termination electrode outer end face
And form contact.
In above-mentioned technical proposal, the fusing point of the solder sheet is higher than the solder.
In order to further solve the deficiency of above-mentioned prior art problem, a kind of electronic circuit is additionally provided, it is using above-mentioned
The open loop failure mode discharge tube of any external disabling device.
The beneficial effects of the utility model are：
1）By setting disabling device outside porcelain tube, new open loop failure mode discharge tube is formed；
2）Disabling device one end as discharge electrode in itself, two discharge electrodes with termination electrode composition discharge tube；
3）Switch of the disabling device as discharge electrode, when electric discharge fever occurs, by the solder fusing of low temperature, makes mistake
Imitate device to start, disconnect the connection between two discharge electrodes, it is not necessary to which failure could be realized by opening termination electrode；
4）The welding of porcelain tube and termination electrode still uses high-temperature solder piece, and the ripe technique of tradition, is not in gas leakage
Problem, improves yield rate.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment one；
Fig. 2 is the decomposition texture schematic diagram of Fig. 1；
Fig. 3 is the overall structure diagram of the utility model embodiment two；
Fig. 4 is the decomposition texture schematic diagram of Fig. 3；
Fig. 5 is the overall structure diagram of the utility model embodiment three；
Fig. 6 is the decomposition texture schematic diagram of Fig. 5；
Fig. 7 is the overall structure diagram of the utility model embodiment four；
Fig. 8 is the decomposition texture schematic diagram of Fig. 7.
In figure, 1, porcelain tube；2nd, termination electrode；3rd, solder sheet；5th, disabling device；6th, limiting groove（Completely）；7th, limit convex
Block（Completely）；8th, the first porcelain tube；9th, the second porcelain tube；10th, outer end face；11st, inner face；12nd, it is open；13rd, annular body；14、
Looping pit position；15th, it is recessed；16th, vertical section；17th, horizontal segment；18th, bending section；19th, position；20th, solder；21st, pin；22nd, bullet
Property part.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figures 1-8, a kind of open loop failure mode discharge tube of external disabling device, including porcelain tube 1 and by porcelain tube 1
The two end electrodes 2 of the port closed of both ends perforation, are welded between porcelain tube 1 and termination electrode 2 by solder sheet 3, the two end electrodes 2
Inner surface is internally formed discharging gap in porcelain tube 1；It is provided outside a disabling device 5, the limit of the disabling device 5 in porcelain tube 1
On the outer surface of porcelain tube 1, the termination electrode 2 of one end is extended with an elastic component 22, the elasticity thereto from disabling device 5
Part 22 overcomes elastic force and the outer end face 10 of termination electrode 2 to weld by solder 20, when the solder 20 fails, elastic piece and end electricity
Pole 2 disconnects；Disabling device 5 is equipped with two discharge electrodes of formation of termination electrode 2 of a pin 21, the pin 21 and the other end.
Wherein, the outer surface of the porcelain tube 1 is formed with limiting groove or spacing block set, corresponding, the disabling device 5
It is limited on the limiting groove or spacing block set.According to formed by the way of limiting groove or spacing block set embodiment one to
Four.
Wherein, the porcelain tube 1 includes the first porcelain tube 8 and the second porcelain tube 9, and the first porcelain tube 8 and the second porcelain tube 9 pass through solder sheet
3 welding, and the incomplete limiting groove or spacing block set are equipped with the first porcelain tube 8, it is equipped with the second porcelain tube 9 non-
The complete limiting groove or spacing block set, first porcelain tube 8 form complete described spacing after being combined with the second porcelain tube 9
Groove or spacing block set.
Wherein, 10 center of outer end face of the termination electrode 2 is recessed inwardly, inner face 11 is centrally formed boss, boss
It is placed in porcelain tube 1, and the table top of the boss is as discharge face.
Wherein, the disabling device 5 includes the annular body 13 of opening 12, which is sleeved on porcelain from the opening 12
On pipe 1.Annular body 13 is the main body of circular arc or makes square main body, depending on the shape of porcelain tube 1.And annular body
13 also have certain elasticity, consolidate the auxiliary of porcelain tube 1 as reinforcing sleeve.What 1 outer surface of porcelain tube was formed is the feelings of spacing block set
Under condition, looping pit position 14 is provided with annular body 13, between clamping end of the end of hole position to annular body 13
The depression 15 that part is formed for avoidance spacing block set.
Wherein, the elastic component 22 includes vertical section 16, horizontal segment 17 and bending section 18, and vertical section 16 is from disabling device 5
On extend, support the outer end face 10 that termination electrode 2 is spanned to from vertical section 16 by horizontal segment 17, bending section 18 is to termination electrode
2 outer end faces 10 bend and form contact.The elastic component 22 in place of the connection of termination electrode 2 with being located at 2 outer end face of termination electrode
Position 19 outside 10 depressions formed.Edge in place of solder 20 is contacted in contact with termination electrode 2 is set, and can also be made
Between contact and termination electrode 2.The position that the elastic component plays resilient force can be vertical section 16, horizontal segment 17 and bending
Section 18 in one or more snippets.
Wherein, between the solder sheet 3 between termination electrode 2 and porcelain tube 1, or the first porcelain tube 8 and the second porcelain tube 9
Solder sheet 3, its fusing point are above the fusing point of the solder 20.Ensure the leakproofness of porcelain tube 1 and termination electrode 2, prevent gas leakage.
A kind of electronic circuit, it applies the open loop failure mode discharge tube of upper external disabling device 5.
The operation principle of the utility model：When electric discharge tube discharge fever, solder 20 melts, and makes the bending section of elastic component
Due to the effect of elastic restoring force, outwards flick, disabling device is opened a way with termination electrode so that discharge tube and open circuit, from
And make electric discharge tube failure.
Embodiment above simply indicates that rather than limits 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 application range.
Claims (9)
1. a kind of open loop failure mode discharge tube of external disabling device, including porcelain tube and the port that penetrates through porcelain tube both ends are sealed
The two end electrodes closed, are welded between porcelain tube and termination electrode by solder sheet, the inner surfaces of the two end electrodes shape inside porcelain tube
Into discharging gap；It is characterized in that：A disabling device, the outside table for being limited in porcelain tube of the disabling device are provided outside in porcelain tube
On face, the termination electrode of one end is extended with an elastic component thereto from disabling device, which overcomes elastic force by solder
Welded with the outer end face of termination electrode, when the solder failure, elastic piece is disconnected with termination electrode；Disabling device is equipped with a pin, should
The termination electrode of pin and the other end forms two discharge electrodes.
A kind of 2. open loop failure mode discharge tube of external disabling device according to claim 1, it is characterised in that：It is described
The outer surface of porcelain tube is formed with limiting groove or spacing block set, and corresponding, the disabling device is limited in the limiting groove
Or on spacing block set.
A kind of 3. open loop failure mode discharge tube of external disabling device according to claim 2, it is characterised in that：It is described
Porcelain tube includes the first porcelain tube and the second porcelain tube, and the first porcelain tube and the second porcelain tube are welded by solder sheet, and on the first porcelain tube
Equipped with the incomplete limiting groove or spacing block set, the incomplete limiting groove or spacing is equipped with the second porcelain tube
Convex block, first porcelain tube form the complete limiting groove or spacing block set after being combined with the second porcelain tube.
A kind of 4. open loop failure mode discharge tube of external disabling device according to claim 1, it is characterised in that：It is described
The outer end face center of termination electrode is recessed inwardly, inner face is centrally formed boss, and boss is placed in porcelain tube, and the platform of the boss
Face is as discharge face.
A kind of 5. open loop failure mode discharge tube of external disabling device according to claim 4, it is characterised in that：It is described
Position in place of the connection of elastic component and termination electrode outside the depression that the termination electrode outer end face is formed.
A kind of 6. open loop failure mode discharge tube of external disabling device according to claim 1, it is characterised in that：It is described
Disabling device includes the annular body of opening, and the annular body is from the opening sleeve on porcelain tube.
A kind of 7. open loop failure mode discharge tube of external disabling device according to claim 1, it is characterised in that：It is described
Elastic component includes vertical section, horizontal segment and bending section, and vertical section is extended from disabling device, is supported by horizontal segment from perpendicular
Straight section spans to the outer end face of termination electrode, and bending section bends to termination electrode outer end face and forms contact.
A kind of 8. open loop failure mode discharge tube of external disabling device according to claim 1, it is characterised in that：It is described
The fusing point of solder sheet is higher than the solder.
A kind of 9. electronic circuit, it is characterised in that：Using the open circuit of any external disabling devices of the claims 1-8
Failure mode discharge tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477596.XU CN207353644U (en) | 2017-11-08 | 2017-11-08 | The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477596.XU CN207353644U (en) | 2017-11-08 | 2017-11-08 | The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207353644U true CN207353644U (en) | 2018-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721477596.XU Active CN207353644U (en) | 2017-11-08 | 2017-11-08 | The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device |
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|---|---|
| CN (1) | CN207353644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658695A (en) * | 2017-11-08 | 2018-02-02 | 深圳市瑞隆源电子有限公司 | The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device |
-
2017
- 2017-11-08 CN CN201721477596.XU patent/CN207353644U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658695A (en) * | 2017-11-08 | 2018-02-02 | 深圳市瑞隆源电子有限公司 | The open loop failure mode discharge tube and its electronic circuit of a kind of external disabling device |
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