CN106785922B - A kind of gas discharge tube electrode and preparation method thereof - Google Patents
A kind of gas discharge tube electrode and preparation method thereof Download PDFInfo
- Publication number
- CN106785922B CN106785922B CN201710199786.8A CN201710199786A CN106785922B CN 106785922 B CN106785922 B CN 106785922B CN 201710199786 A CN201710199786 A CN 201710199786A CN 106785922 B CN106785922 B CN 106785922B
- Authority
- CN
- China
- Prior art keywords
- discharge tube
- electrode
- gas discharge
- parts
- gas
- 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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/28—Cooling arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
-
- 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
- H01T1/16—Series resistor structurally associated with spark gap
-
- 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
- H01T1/20—Means for starting arc or facilitating ignition of spark gap
- H01T1/22—Means for starting arc or facilitating ignition of spark gap by the shape or the composition of the electrodes
-
- 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
- H01T1/24—Selection of materials for electrodes
-
- 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
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
Abstract
A kind of claimed gas discharge tube electrode, the electrode are mainly made up of metal material, and electronic powder is coated with the inside of the electrode, have electric insulation heat transfer film in the electrode outer application；Further, the gas-discharge tube is mainly used in ceramic gas discharge tube, is provided with thermal resistance in the electric insulation heat transfer film surface, the thermal resistance is connected with glass gas-discharge pipe, then in parallel with the ceramic gas discharge tube again.Present invention mainly solves gas-discharge tube in the prior art easily to overheat, the short technical problem of service life；Also further solves the long technical problem of ceramic gas discharge tube response time in the prior art.
Description
Technical field
The invention belongs to gas-discharge tube field, more particularly to a kind of gas discharge tube electrode and preparation method thereof.
Background technology
Ceramic gas discharge tube is that appropriate gas medium is filled with discharging gap, is equipped with the electron emission material of high activity
Material and mechanism of igniting of discharging, by the high intermediate temperature sealing of silver-copper brazing alloy and a kind of manufactured gas discharge of special cermet structure
Device.It is mainly used in instantaneous overvoltage protection, can also be used as ignition switch.The through-current capacity of ceramic gas discharge tube is than pressure-sensitive electricity
Resistance and TVS pipe are big, and the protection device such as gas-discharge tube and TVS should make most overcurrent pass through gas-discharge tube when sharing
Release.The insulaion resistance of gas-discharge tube is very high, can reach the magnitude of begohm.The value of interelectrode capacity is very small, and one
As in below 2pF, interelectrode leakageg stream is very small, is nA levels.Therefore gas-discharge tube is attempted by circuit substantially will not to circuit
What, which is formed, influences.But gas-discharge tube for a long time bear or continually overcurrent when, gas-discharge tube can be heating up, gas
Two metal electrodes thawing sputtering amount of discharge tube is big, and easy guiding discharge tube impedance, which declines, even forms short circuit.Therefore how to have
Effect prevents gas generating pipe from overheating, and improves the service life of gas-discharge tube, is the technical problem that this area is badly in need of solving.This
Outside, existing ceramic gas discharge tube electrode generally use oxygen-free copper and 4J42 iron nickel (42%) nickel alloy is made, in electrode
Side is coated with one layer of electronic powder, to accelerate the response time of ceramic gas discharge tube.But in general ceramic gas discharge tube
Response time, so that counting ms, is sound that is most slow, therefore how improving ceramic gas discharge tube in protection device in hundreds of ns
Between seasonable, and the technical problem of solution is badly in need of in this area.
The content of the invention
Present invention seek to address that existing gas-discharge tube easily overheats, a kind of short technical barrier of service life, there is provided gas
Discharge tube electrode and preparation method thereof.On this basis, present invention is alternatively directed to ceramic gas discharge tube response time length to be carried out
Improve, the gas discharge tube electrode after improvement can significantly shorten the response time of ceramic gas discharge tube.
In order to achieve the above object, present invention employs following technical scheme：
A kind of gas discharge tube electrode, is mainly made up of metal material, and electronic powder is coated with the inside of the electrode,
The electrode outer application has one layer of electric insulation heat transfer film.
As the improved technical scheme of the present invention, multiple radiating fins, the radiating fin and institute are provided with the outside of the electrode
Electrode is stated to be integrally formed by metal material.
Further, the radiating fin is sequentially arranged in parallel, middle radiating fin length, and the radiating fin of both sides is short.
As further improved technical scheme of the present invention, the gas discharge tube electrode is mainly used in ceramic gas and put
Fulgurite, thermal resistance is mounted with the electric insulation heat transfer film surface, the thermal resistance is connected with a glass gas-discharge pipe
It is in parallel with the ceramic gas discharge tube again afterwards.
Further, thermal resistance " Z " type is distributed in the electric insulation heat transfer film surface.
Further, the thermal resistance winds helically tubulose by heating wire bending.
As another object of the present invention, the invention provides a kind of preparation method of gas discharge tube electrode, mainly
Comprise the following steps：Step 1, poured using metal material and electrode of the one side with radiating fin is made；Step 2, in radiating fin
Be electrically insulated heat transfer film in the electrode surface spraying of side.
Further, the step 2 is：Take 2~6 parts of titanium dioxide, 3~7 parts of alundum (Al2O3), 1~5 part of carborundum,
9.5~15 parts of kaolin, 15~25 parts of propyl alcohol, 20~30 parts of polymethyl methacrylate, polyarylene sulfide resin 24~35
Part, 0.5~2 part of trimethoxy silane are well mixed, the electrode surface of radiating fin side are then sprayed on, by the electrode after spraying
It is put into 60~80 DEG C of baking oven into 1~3h is changed, is then transferred to 4~10h of intermediate temperature setting in 300~400 DEG C of baking oven, it is naturally cold
But.
Further, the step 2 is：Take 3~5 parts of titanium dioxide, 4~6 parts of alundum (Al2O3), 2~4 parts of carborundum,
10.2~13.5 parts of kaolin, 18~23 parts of propyl alcohol, 23~27 parts of polymethyl methacrylate, polyarylene sulfide resin 27~
32 parts, 0.8~1.5 part of trimethoxy silane it is well mixed, the electrode surface of radiating fin side is then sprayed on, after spraying
Electrode is put into 60~80 DEG C of baking oven into 1~3h is changed, and is then transferred to 4~10h of intermediate temperature setting in 300~400 DEG C of baking oven, from
So cooling.
Preferably, the step 2 is：Take 4 parts of titanium dioxide, 5 parts of alundum (Al2O3), 3 parts of carborundum, 12 parts of kaolin,
20 parts of propyl alcohol, 25 parts of polymethyl methacrylate, 30 parts of polyarylene sulfide resin, 1 part of trimethoxy silane are well mixed, so
The electrode surface of radiating fin side is sprayed on afterwards, and the electrode after spraying is put into 70 DEG C of baking oven into 2h is changed, is then transferred to 380
DEG C baking oven in intermediate temperature setting 8h, natural cooling.
Beneficial effect：
The present invention is gone out heat Quick diffusing caused by gas-discharge tube using the heat transfer film that is electrically insulated, and is advantageous to prevent
Only gas-discharge tube overheats, and extends the service life of gas-discharge tube.The present invention is also by electric insulation heat transfer film surface
Thermal resistance is disposed, the thermal resistance is connected with glass gas-discharge pipe, therefore when gas-discharge tube both ends produce high pressure, glass
Gas-discharge tube quick response turns on, heated by electrodes of the electric current by thermal resistance to ceramic gas discharge tube so that ceramic gas
Electronic powder in discharge tube is easier to discharge electronics, and the gas motion in ceramic gas discharge tube is more violent, is more easy to puncture, from
And greatly shorten the response time of ceramic gas.The invention further relates to the formula of the electric insulation heat transfer film suitable for the present invention
And preparation method.Gas discharge tube electrode made from the formula has the characteristics that good insulating, heat conductivility be good, high temperature resistant.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention is used in ceramic gas discharge tube；
Fig. 2 is structural representation of the thermal resistance in electric insulation heat transfer film surface " Z " type distribution.
Embodiment
In order that those skilled in the art becomes apparent from understanding that the understands the present invention, in conjunction with embodiment and attached
Figure, the present invention is described in detail.
As shown in figure 1, the gas discharge tube electrode of the present invention is mainly used in ceramic gas discharge tube.Common ceramic gas
Body discharge tube mainly includes metal electrode 5, earthenware 6, electronic powder 7, lead 1, lead 2.The present invention is to common ceramic gas
Discharge tube is transformed, and is that one layer of electric insulation heat transfer film (not shown) is coated on the surface of metal electrode 5 first.It is described thin
Film mainly by 2~6 parts of titanium dioxide, 3~7 parts of alundum (Al2O3), 1~5 part of carborundum, 9.5~15 parts of kaolin, propyl alcohol 15~
25 parts, 20~30 parts of polymethyl methacrylate, 24~35 parts of polyarylene sulfide resin, 0.5~2 part of trimethoxy silane system
Into.In order that metal electrode 5 has a more preferable radiating effect, the outside of the face electronic powder 7 of metal electrode 5 is sequentially put down in the present invention
Row is arranged with multiple radiating fins 5 ', and the radiating fin 5 ' is integrally formed with the electrode 5 by metal material, middle radiating fin 5 '
Long, the radiating fin 5 ' of both sides is short.Thus, when ceramic gas discharge tube is born or during continually overcurrent for a long time, gas discharge
Two metal electrodes 5 of pipe will quickly be exported heat by radiating fin 5 ', so as to prevent gas-discharge tube from overheating.
For the ceramic gas discharge tube response time length technical problem, the present invention it is above-mentioned it is improved on the basis of to ceramics
Gas-discharge tube has made further improvement.Be first electric insulation heat transfer film placement thermal resistance 4, the thermal resistance 4 with
It is in parallel with the ceramic gas discharge tube again after the series connection of one glass gas-discharge pipe 3.4 ' be drawing for two thermal resistances 4 of connection
Line.When ceramic gas discharge tube both ends produce high pressure, the conducting of the quick response of glass gas-discharge pipe 3, several nanoseconds are generally only needed,
Electric current is heated by thermal resistance 4 to the electrode 5 of ceramic gas discharge tube so that the electronic powder 7 in ceramic gas discharge tube more holds
Easily release electronics, gas motion in ceramic gas discharge tube is more violent, is more easy to puncture, so as to greatly shorten ceramic gas
Response time.Using this scheme, response time of ceramic gas discharge tube can be made by hundreds of original nanoseconds to several milliseconds
It was reduced to for tens nanoseconds.In order to increase the resistance value of thermal resistance 4, can be in by heating wire bending winding by the thermal resistance 4 first
Helix, then " Z " type is distributed in the electric insulation heat transfer film surface again, as shown in Figure 2.
Due to the electric insulation heat transfer film on the surface of metal electrode 5 need to meet electrical insulating property is good, heat conduction efficiency is high and
Resistant to elevated temperatures feature, therefore the present invention is also studied the formula for the heat transfer film that is electrically insulated, specific embodiment is as follows.
Embodiment 1
A kind of preparation method of gas discharge tube electrode, is mainly included the following steps that：Step 1, poured using metal material
Build and electrode of the one side with radiating fin is made；Step 2, take 2 parts of titanium dioxide, 7 parts of alundum (Al2O3), 5 parts of carborundum, kaolinite
2 parts of 15 parts of soil, 15 parts of propyl alcohol, 30 parts of polymethyl methacrylate, 24 parts of polyarylene sulfide resin, trimethoxy silane mixing
Uniformly, the electrode surface of radiating fin side is then sprayed on, into 1h is changed, then the electrode after spraying is put into 60 DEG C of baking oven
It is transferred to intermediate temperature setting 10h, natural cooling in 300 DEG C of baking oven.
Embodiment 2
A kind of preparation method of gas discharge tube electrode, is mainly included the following steps that：Step 1, poured using metal material
Build and electrode of the one side with radiating fin is made；Step 2, take 3 parts of titanium dioxide, 6 parts of alundum (Al2O3), 4 parts of carborundum, kaolinite
13.5 parts of soil, 18 parts of propyl alcohol, 27 parts of polymethyl methacrylate, 27 parts of polyarylene sulfide resin, 1.5 parts of trimethoxy silane
It is well mixed, the electrode surface of radiating fin side is then sprayed on, the electrode after spraying is put into 70 DEG C of baking oven into change 2h,
Then intermediate temperature setting 8h, natural cooling in 350 DEG C of baking oven are transferred to.
Embodiment 3
A kind of preparation method of gas discharge tube electrode, is mainly included the following steps that：Step 1, poured using metal material
Build and electrode of the one side with radiating fin is made；Step 2, take 4 parts of titanium dioxide, 5 parts of alundum (Al2O3), 3 parts of carborundum, kaolinite
1 part of 12 parts of soil, 20 parts of propyl alcohol, 25 parts of polymethyl methacrylate, 30 parts of polyarylene sulfide resin, trimethoxy silane mixing
Uniformly, the electrode surface of radiating fin side is then sprayed on, into 3h is changed, then the electrode after spraying is put into 70 DEG C of baking oven
It is transferred to intermediate temperature setting 8h, natural cooling in 380 DEG C of baking oven.
Embodiment 4
A kind of preparation method of gas discharge tube electrode, is mainly included the following steps that：Step 1, poured using metal material
Build and electrode of the one side with radiating fin is made；Step 2, take 5 parts of titanium dioxide, 4 parts of alundum (Al2O3), 2 parts of carborundum, kaolinite
10.2 parts of soil, 23 parts of propyl alcohol, 23 parts of polymethyl methacrylate, 32 parts of polyarylene sulfide resin, 0.8 part of trimethoxy silane
It is well mixed, the electrode surface of radiating fin side is then sprayed on, the electrode after spraying is put into 80 DEG C of baking oven into change 1h,
Then intermediate temperature setting 4h, natural cooling in 400 DEG C of baking oven are transferred to.
Embodiment 5
A kind of preparation method of gas discharge tube electrode, is mainly included the following steps that：Step 1, poured using metal material
Build and electrode of the one side with radiating fin is made；Step 2, take 6 parts of titanium dioxide, 3 parts of alundum (Al2O3), 1 part of carborundum, kaolinite
9.5 parts of soil, 25 parts of propyl alcohol, 20 parts of polymethyl methacrylate, 35 parts of polyarylene sulfide resin, 0.5 part of trimethoxy silane
It is well mixed, the electrode surface of radiating fin side is then sprayed on, the electrode after spraying is put into 70 DEG C of baking oven into change 2h,
Then intermediate temperature setting 4h, natural cooling in 380 DEG C of baking oven are transferred to.
Gas discharge tube electrode made from above method disclosure satisfy that electrical insulating property is good, thermal conductivity is good, resistant to elevated temperatures
It is required that.
Obviously, above-described embodiment is used for the purpose of clearly demonstrating example, rather than the limitation to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.As long as made on the basis of the embodiment of the present invention
The change scheme of common-sense, among protection scope of the present invention.
Claims (5)
1. a kind of gas discharge tube electrode, is mainly made up of metal material, it is characterised in that：It is coated with the inside of the electrode
Electronic powder, there is one layer of electric insulation heat transfer film in the electrode outer application, the gas discharge tube electrode is mainly used in
Ceramic gas discharge tube, thermal resistance, the thermal resistance and a glass gas are mounted with the electric insulation heat transfer film surface
It is in parallel with the ceramic gas discharge tube again after discharge tube series connection.
2. gas discharge tube electrode according to claim 1, it is characterised in that：Multiple dissipate is provided with the outside of the electrode
Hot wing, the radiating fin are integrally formed with the electrode by metal material.
3. gas discharge tube electrode according to claim 2, it is characterised in that：The radiating fin is sequentially arranged in parallel,
Middle radiating fin length, the radiating fin of both sides are short.
4. gas discharge tube electrode according to claim 1, it is characterised in that：Thermal resistance " Z " type is distributed in institute
State electric insulation heat transfer film surface.
5. gas discharge tube electrode according to claim 1, it is characterised in that：The thermal resistance is twined by heating wire bending
Around helically tubulose.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199786.8A CN106785922B (en) | 2017-03-30 | 2017-03-30 | A kind of gas discharge tube electrode and preparation method thereof |
| CN201810188493.4A CN108521076B (en) | 2017-03-30 | 2017-03-30 | Electrode for gas discharge tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199786.8A CN106785922B (en) | 2017-03-30 | 2017-03-30 | A kind of gas discharge tube electrode and preparation method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188493.4A Division CN108521076B (en) | 2017-03-30 | 2017-03-30 | Electrode for gas discharge tube and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106785922A CN106785922A (en) | 2017-05-31 |
| CN106785922B true CN106785922B (en) | 2018-04-06 |
Family
ID=58967960
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710199786.8A Active CN106785922B (en) | 2017-03-30 | 2017-03-30 | A kind of gas discharge tube electrode and preparation method thereof |
| CN201810188493.4A Active CN108521076B (en) | 2017-03-30 | 2017-03-30 | Electrode for gas discharge tube and preparation method thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188493.4A Active CN108521076B (en) | 2017-03-30 | 2017-03-30 | Electrode for gas discharge tube and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106785922B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091531A (en) * | 2018-01-22 | 2018-05-29 | 东莞市阿甘半导体有限公司 | Gas-discharge tube and overvoltage protection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788314Y (en) * | 2005-03-31 | 2006-06-14 | 聚鼎科技股份有限公司 | Overcurrent protective element |
| CN101308759A (en) * | 2007-05-16 | 2008-11-19 | 台达电子工业股份有限公司 | Cold cathode fluorescent lamp and cold cathode fluorescent lamp module |
| CN205723432U (en) * | 2016-05-04 | 2016-11-23 | 深圳市良胜电子有限公司 | A kind of highly sensitive ceramic discharge tube |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005014660U1 (en) * | 2005-09-16 | 2005-12-08 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | High pressure electrical gas discharge lamp has electrode fitted with a heating filament for use in a dimmer circuit |
| CN101735563A (en) * | 2009-12-04 | 2010-06-16 | 郎玉龙 | Composite heat-conducting insulated film and method for manufacturing same |
| CN104710912B (en) * | 2015-03-31 | 2017-09-22 | 东莞市闻誉实业有限公司 | Fin |
| CN105860754A (en) * | 2016-05-09 | 2016-08-17 | 安徽爱莱特照明灯具有限公司 | Wear-resistant high-thermal-conductivity insulation varnish for LED lamp holder and preparation method of wear-resistant high-thermal-conductivity insulation varnish for LED lamp holder |
-
2017
- 2017-03-30 CN CN201710199786.8A patent/CN106785922B/en active Active
- 2017-03-30 CN CN201810188493.4A patent/CN108521076B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788314Y (en) * | 2005-03-31 | 2006-06-14 | 聚鼎科技股份有限公司 | Overcurrent protective element |
| CN101308759A (en) * | 2007-05-16 | 2008-11-19 | 台达电子工业股份有限公司 | Cold cathode fluorescent lamp and cold cathode fluorescent lamp module |
| CN205723432U (en) * | 2016-05-04 | 2016-11-23 | 深圳市良胜电子有限公司 | A kind of highly sensitive ceramic discharge tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108521076A (en) | 2018-09-11 |
| CN108521076B (en) | 2020-03-27 |
| CN106785922A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207897167U (en) | A kind of industrial resistance furnace electricity consumption heating radiation pipe | |
| GB595060A (en) | Improvements in electrical heating elements | |
| CN106785922B (en) | A kind of gas discharge tube electrode and preparation method thereof | |
| CN204669632U (en) | A kind of Novel pole silk compound pole shape heat-generating pipe | |
| CN105931932B (en) | A kind of preparation method for nitrogenizing aluminum insulation layer cathode heater | |
| CN201878351U (en) | Tubular resistor | |
| WO2012016399A1 (en) | Heating rod for water heater | |
| CN104955184B (en) | A kind of Novel pole silk compound pole shape heat-generating pipe | |
| CN208567098U (en) | Face electric heater | |
| CN103052181B (en) | Tao Jin mixed type PTC fast electric heater | |
| CN103531419A (en) | Magnetron tube core for microwave heating | |
| CN209675026U (en) | A kind of high heat-dissipation resistor | |
| CN211580226U (en) | Multi-section heating central heating element | |
| CN201119008Y (en) | A temperature self-control heating tube | |
| CN206040334U (en) | Ceramic package is able to bear or endure high voltage resistor | |
| CN209435466U (en) | A kind of heat delivery surface is electrical isolation face scale inhibition dual channel ring cavity pipe electric heater | |
| CN106205908A (en) | Ceramic package high voltage-resistant resistor | |
| CN205355000U (en) | Gas discharge tube and with metallization electrode thereof | |
| CN111954320A (en) | Method for manufacturing metal heating body | |
| CN209314119U (en) | A kind of heat delivery surface is electrically insulating material face scale inhibition electric heater | |
| CN206380101U (en) | A kind of ptc heater | |
| CN2774344Y (en) | Electric heating pot | |
| CN205305145U (en) | High energy efficiency high shield ground electric heating cable | |
| CN203536357U (en) | Magnetron tube core for microwave heating | |
| CN209089257U (en) | A kind of anticreep ceramic ignition stick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 448000 a group of Bai Guo village, Li Xi Town, Dongbao District, Jingmen City, Hubei Co-patentee after: Dongguan city standard hardware Co. Ltd. Patentee after: Gu Chunning Address before: 448000 a group of Bai Guo village, Li Xi Town, Dongbao District, Jingmen City, Jingzhou, Hubei Co-patentee before: Dongguan city standard hardware Co. Ltd. Patentee before: Gu Chunning |