CN203933995U - A kind of novel ptc heater - Google Patents
A kind of novel ptc heater Download PDFInfo
- Publication number
- CN203933995U CN203933995U CN201420291957.1U CN201420291957U CN203933995U CN 203933995 U CN203933995 U CN 203933995U CN 201420291957 U CN201420291957 U CN 201420291957U CN 203933995 U CN203933995 U CN 203933995U
- Authority
- CN
- China
- Prior art keywords
- ptc
- metal tube
- pottery
- silica gel
- novel
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
- H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
Abstract
The utility model discloses a kind of novel ptc heater, power on pole piece and bottom electrode sheet is bonded in respectively upper surface and the lower surface of PTC pottery by silica gel binding agent, PTC ceramic combination is arranged in metal tube by spacer, make to form a cavity between PTC ceramic combination and metal tube, in cavity, fill insulating heat-conductive particle.The utility model power aging is little, adopt MgO sand to be filled between arc-shaped electrode sheet and metal tube, spatially realize the isolation between metal tube and arc-shaped electrode sheet, there is not the situation of impurity wearing and tearing insulating paper, forever avoid the inefficacy of dielectric strength, insulating reliability is obviously improved; Because MgO sand is closely wrapped in PTC pottery around, sand is again the good material of a kind of insulation, has prevented atmospherical discharges under high pressure of PTC pottery upper/lower electrode and puncturing of causing; The two ends of metal tube adopt silica gel plug and silica gel dual-seal, make classification of waterproof reach IP68, can in water, work for a long time.
Description
Technical field
The utility model relates to thermal sensitive ceramics technical field, is a kind of novel ptc heater specifically.
Background technology
Traditional insulated type ptc heater, be that power-on and power-off pole piece is bonded in to some PTC pottery two sides by silica gel, then use polyimide insulative paper as insulating barrier, PTC pottery and power-on and power-off pole piece are bundled together, then penetrate in square aluminium tube, form through pressure pipe the upper radiator of bonding.
But this heater has some intrinsic shortcomings, specific as follows:
1, power aging is large: one of them reason be ptc heater in the course of the work, due to long-term expanding with heat and contract with cold, the thrust of aluminum pipe can diminish, and the thermal resistance between PTC pottery and aluminum pipe is increased, cause the heat of PTC pottery fully not distribute, show as the power aging of heater.
2, the poor reliability of dielectric strength: due in assembling process, inevitably sneak into some granule foreigns, in process of production or in the long-term course of work, granule foreign can destroy insulating paper meeting, cause heater surfaces charged, cause potential safety hazard.
3, withstand voltage poor reliability: traditional heater is owing to adopting polyimides as insulating material, this material can volatilize under long term high temperature, produce a small amount of neutrality or reducing atmosphere, PTC pottery is under this atmosphere, the oxygen adsorbing in crystal boundary can discharge, PTC ceramic performance is degenerated, and lift-drag ratio declines, and under high pressure may cause puncturing of PTC pottery.
Meanwhile, there is a little air gap in the side of insulating paper and PTC pottery, under high pressure, likely causes the atmospherical discharges between upper/lower electrode to puncture.
4, water proofing property is poor: traditional heater is because aluminum pipe port only adopts silica gel sealing, and the distance (degree of depth) of sealing is inadequate, easily causes entering of moisture.
Moreover, because the effect of electrode slice is only covering PTC ceramic surface electrode, the width of traditional electrode slice is than the little 1mm of the width of PTC pottery left and right, the industry for many years all adopts this rule to make, such as the width 11.8mm of PTC pottery, electrode slice width is generally 10.5～11mm, under many circumstances (such as electrode slice distortion, when assembling, electrode slice position is not placed in the middle symmetrical, the electrode bias of PTC ceramic surface etc.), surface electrode on PTC pottery can expose the edge of stainless steel electrode sheet, in this case, when (after the break-make ageing test at several ten thousand times) after long-term use, in edge and the PTC ceramic surface electrode junction of electrode slice, can produce the phenomenon of electric arc, the high temperature ablation insulating paper that electric arc produces, make insulating paper carbonization, cause the inefficacy of heater insulation, electric arc also can burn out the surface electrode of PTC pottery simultaneously, thereby cause the power aging of PTC pottery, serious words, also can cause puncturing of PTC pottery, the ON/OFF of heater can only be confined to several ten thousand times useful life.
Therefore, need especially a kind of novel ptc heater, to solve problems of the prior art.
Utility model content
The purpose of this utility model is in order to solve in prior art, and ptc heater power aging is large, the poor reliability of dielectric strength, withstand voltage reliability and the poor defect of water proofing property, and a kind of novel ptc heater is provided, and solves problems of the prior art.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of novel ptc heater, comprise PTC ceramic combination and metal tube, described PTC ceramic combination comprises the pole piece that powers on, bottom electrode sheet and rectangular-shaped PTC pottery, described power on pole piece and bottom electrode sheet are bonded in respectively upper surface and the lower surface of PTC pottery by silica gel binding agent, a kind of novel ptc heater, also comprise spacer and insulating heat-conductive particle, described PTC ceramic combination is arranged in metal tube by spacer, make to form a cavity between PTC ceramic combination and metal tube, in described cavity, fill insulating heat-conductive particle.
In the utility model, described in the power on shape of pole piece and bottom electrode sheet end section be respectively circular arc, the string of described circular arc and PTC ceramic bonding.
In the utility model, described insulating heat-conductive particle is MgO sand.
In the utility model, the arranged outside fin of described metal tube.
In the utility model, in described metal tube, the two ends of PTC ceramic combination set gradually respectively silica gel plug and silica gel by the direction in inner side to outside.
In the utility model, at described PTC pottery two ends, the pottery that PTC pottery contacts with silica gel plug is respectively insulating ceramics.
In the utility model, the material of described metal tube is stainless steel, copper or aluminium.
In the utility model, the length of string and the width of PTC pottery of what described end section was circular arc power on pole piece equate, the length of the string of the bottom electrode sheet that described end section is circular arc and the width of PTC pottery equate.
Beneficial effect
1, after the metal tube draw, thrust is very strong, can not cause because of long-term expanding with heat and contract with cold the expansion of metal tube, and power aging is obviously reduced;
2, owing to adopting MgO sand to be filled between arc-shaped electrode sheet and metal tube, spatially realize the isolation between metal tube and arc-shaped electrode sheet, due to without insulating paper as insulating barrier, there is not the situation of impurity wearing and tearing insulating paper, forever avoid in design the inefficacy of dielectric strength, insulating reliability is obviously improved;
3, because MgO sand is closely wrapped in PTC pottery around, sand is again the good material of a kind of insulation, has prevented atmospherical discharges under high pressure of PTC pottery upper/lower electrode and puncturing of causing;
4, because the two ends of metal tube adopt silica gel plug and silica gel dual-seal, make classification of waterproof reach IP68, can in water, work for a long time;
5, adopt radiating fin to be enclosed within metal tube outside, can be by inner dissipation of heat out;
6, employing and the wide electrode slice of PTC pottery, make the edge of electrode slice exceed the edge of PTC ceramic surface electrode, thereby avoid electric arc to produce, and greatly improved insulating reliability, and reached more than 20～30 years the useful life of heater.
Brief description of the drawings
Fig. 1 structural representation of the present utility model;
The structural representation of Fig. 2 the utility model PTC pottery;
The positional structure schematic diagram of Fig. 3 the utility model silica gel plug, silica gel and insulating ceramics;
Fig. 4 the utility model PTC ceramic combination is assemblied in the structural representation in aluminum pipe.
Wherein: 1, PTC ceramic combination; 2, metal tube; 3, the pole piece that powers on; 4, bottom electrode sheet; 5, PTC pottery; 6, spacer; 7, insulating heat-conductive particle; 8, fin; 9, silica gel plug; 10, silica gel; 11, insulating ceramics.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the utility model is further described.
Embodiment
Referring to Fig. 1 to Fig. 4, a kind of novel ptc heater, comprise PTC ceramic combination 1 and metal tube 2, PTC ceramic combination 1 comprises the pole piece 3 that powers on, bottom electrode sheet 4 and rectangular-shaped PTC pottery 5, and power on pole piece 3 and bottom electrode sheet 4 are bonded in respectively upper surface and the lower surface of PTC pottery 5 by silica gel binding agent; A novel ptc heater, also comprises spacer 6 and insulating heat-conductive particle 7, and spacer 6 is designed to gear-like, and the part of protrusion realizes the isolation between metal tube 2 and arc-shaped electrode sheet, and recessed part is conducive to husky bleeding.Spacer 6 is mainly used in isolating PTC ceramic combination 1 and metal tube 2, PTC ceramic combination 1 is arranged in metal tube 2 by spacer 6, spacer 6 plays positioning supports effect to PTC ceramic combination 1, the thickness of spacer 6 is generally in 5mm, make to form a cavity between PTC ceramic combination 1 and metal tube 2, in cavity, fill insulating heat-conductive particle 7.
The shape of pole piece 3 and bottom electrode sheet 4 end sections of powering on is respectively circular arc, the string of circular arc and PTC pottery 5 bondings; The combination of pole piece 3, lower dynamo-sheet 4 and PTC pottery 5 of making to power on is roughly circular, similar to the shape of spacer 6 inner sides, is convenient to fix, similar to the shape of metal tube 2, is also convenient to hot transmission.
Insulating heat-conductive particle 7 is MgO sand, and implementation space isolation, also has wear-resisting, resistance to oxidation effect; For the utility model comparatively preferred embodiment.
The arranged outside fin 8 of metal tube 2, has strengthened radiating effect.
In metal tube 2, the two ends of PTC ceramic combination 1 set gradually respectively silica gel plug 9 and silica gel 10 by the direction in inner side to outside, adopt double layer water-proof structure, make classification of waterproof can reach IP68, favourable underwater operation.
At PTC pottery 5 two ends, PTC pottery 5 potteries that contact with silica gel plug 9 are respectively insulating ceramics 11, and the length of insulating ceramics 11 is shorter, can be referring to accompanying drawing ratio length.
Preferred embodiment, the material of metal tube 2 is stainless steel, copper or aluminium.
End section is that the length of end section string and the width of PTC pottery 5 of the pole piece 3 that powers on of circular arc equates, the length of the end section string of the bottom electrode sheet 4 that end section is circular arc and the width of PTC pottery 5 equate.
1 aperture is set on arc-shaped electrode sheet, and fixing use, can be screwed in aperture by screw meanwhile with time convenient for assembly, the convenient lead-out wire of installing.
The utility model:
1, adopt arc-shaped electrode sheet, the heat that the PTC pottery of sheet produces is delivered to the surface of metal tube by arc-shaped electrode sheet, realized the efficient transmission of heat;
2, MgO sand, has realized space isolation, and insulating reliability is high, realizes the transmission of heat simultaneously;
3, two ends have adopted insulating ceramics, have improved the reliability of electrothermal tube;
4, adopt fin to be fixed on pipe heater, increase radiating effect;
5, adopt silica gel plug, realize waterproof;
6, adopt special insulated column, calandria stationary positioned, in centre, sand can bleed again simultaneously.
The above-mentioned description to embodiment is can understand and use the utility model for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art are according to announcement of the present utility model, and not departing from improvement and the amendment that the utility model category makes all should be within protection range of the present utility model.
Claims (8)
1. a novel ptc heater, comprise PTC ceramic combination and metal tube, described PTC ceramic combination comprises the pole piece that powers on, bottom electrode sheet and rectangular-shaped PTC pottery, described power on pole piece and bottom electrode sheet are bonded in respectively upper surface and the lower surface of PTC pottery by silica gel binding agent, it is characterized in that, also comprise spacer and insulating heat-conductive particle, described PTC ceramic combination is arranged in metal tube by spacer, make to form a cavity between PTC ceramic combination and metal tube, in described cavity, fill insulating heat-conductive particle.
2. a kind of novel ptc heater according to claim 1, is characterized in that: described in the power on shape of pole piece and bottom electrode sheet end section be respectively circular arc, the string of described circular arc and PTC ceramic bonding.
3. a kind of novel ptc heater according to claim 2, is characterized in that: described insulating heat-conductive particle is MgO sand.
4. a kind of novel ptc heater according to claim 3, is characterized in that: the arranged outside fin of described metal tube.
5. a kind of novel ptc heater according to claim 4, is characterized in that: in described metal tube, the two ends of PTC ceramic combination set gradually respectively silica gel plug and silica gel by the direction in inner side to outside.
6. a kind of novel ptc heater according to claim 5, is characterized in that: at described PTC pottery two ends, the pottery that PTC pottery contacts with silica gel plug is respectively insulating ceramics.
7. a kind of novel ptc heater according to claim 6, is characterized in that: the material of described metal tube is stainless steel, copper or aluminium.
8. according to a kind of novel ptc heater one of claim 2 to 7 Suo Shu, it is characterized in that: the length of string and the width of PTC pottery of what described end section was circular arc power on pole piece equate, the length of the string of the bottom electrode sheet that described end section is circular arc and the width of PTC pottery equate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291957.1U CN203933995U (en) | 2014-06-03 | 2014-06-03 | A kind of novel ptc heater |
| PCT/CN2014/094514 WO2015184766A1 (en) | 2014-06-03 | 2014-12-22 | Ventilation-type ptc heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291957.1U CN203933995U (en) | 2014-06-03 | 2014-06-03 | A kind of novel ptc heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933995U true CN203933995U (en) | 2014-11-05 |
Family
ID=51829742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420291957.1U Expired - Fee Related CN203933995U (en) | 2014-06-03 | 2014-06-03 | A kind of novel ptc heater |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203933995U (en) |
| WO (1) | WO2015184766A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184766A1 (en) * | 2014-06-03 | 2015-12-10 | 上海帕克热敏陶瓷有限公司 | Ventilation-type ptc heater |
| CN108097190A (en) * | 2017-11-30 | 2018-06-01 | 安徽依诺格实验室设备有限公司 | A kind of laboratory reaction kettle |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017209990A1 (en) * | 2017-06-13 | 2018-12-13 | Eberspächer Catem Gmbh & Co. Kg | Electric heater and PTC heating element for such |
| CN109708300A (en) * | 2019-02-23 | 2019-05-03 | 深圳雅素达电子科技有限公司 | A kind of manufacturing method of ceramic wafer heater and instant heating type fluid heater |
| CN113905467B (en) * | 2021-11-04 | 2023-08-01 | 苏州法密利电子科技有限公司 | Improved PTC heater and preparation method thereof |
| FR3135182A1 (en) * | 2022-04-29 | 2023-11-03 | Valeo Systemes Thermiques | Heating element of a heating body for an electric radiator centered in a tube. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2423697Y (en) * | 2000-04-21 | 2001-03-14 | 吴瑜杰 | PTC liquid heater |
| CN201937860U (en) * | 2010-12-14 | 2011-08-17 | 镇江东方电热有限公司(中外合资) | Anti-explosion single-end lead-out wire electric heater |
| CN203933995U (en) * | 2014-06-03 | 2014-11-05 | 上海帕克热敏陶瓷有限公司 | A kind of novel ptc heater |
-
2014
- 2014-06-03 CN CN201420291957.1U patent/CN203933995U/en not_active Expired - Fee Related
- 2014-12-22 WO PCT/CN2014/094514 patent/WO2015184766A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184766A1 (en) * | 2014-06-03 | 2015-12-10 | 上海帕克热敏陶瓷有限公司 | Ventilation-type ptc heater |
| CN108097190A (en) * | 2017-11-30 | 2018-06-01 | 安徽依诺格实验室设备有限公司 | A kind of laboratory reaction kettle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015184766A1 (en) | 2015-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203933995U (en) | A kind of novel ptc heater | |
| CN201066936Y (en) | Heater | |
| CN201146614Y (en) | PTC electric heater | |
| CN203912229U (en) | Tubular PTC constant-current electrical heating tube for heating liquid | |
| CN203912216U (en) | PTC heater for new energy electric vehicle | |
| CN203858900U (en) | Durable cable | |
| CN104812110A (en) | Moistureproof insulating electric heater and manufacturing method thereof | |
| CN203933981U (en) | A kind of insulated type ptc heater | |
| CN205845827U (en) | Indoor high-voltage vacuum circuit breaker | |
| CN102573145A (en) | Novel electric heating device | |
| CN203312147U (en) | Vacuum circuit breaker | |
| CN203352823U (en) | Waterproof insulating heating unit | |
| CN208241911U (en) | A kind of sheathed heater cold end structure | |
| CN203933991U (en) | A kind of High-Power PTC thermostatic electric heating tube that is applied to heating liquid | |
| CN204721622U (en) | A kind of heater of thermal sensitive ceramics heating element and thermal sensitive ceramics heating element | |
| CN204634069U (en) | Damp proof insulation electric heater | |
| CN201084688Y (en) | A magnetron microwave energy output unit | |
| CN201269667Y (en) | Semiconductor refrigeration device | |
| CN103836373A (en) | Neon lamp with waterproof device | |
| CN205016530U (en) | High stable switch transistor | |
| CN201766731U (en) | Nitride insulating tube coil electric heater | |
| CN201837070U (en) | Vacuum hot-water outflow pipe | |
| CN210781397U (en) | PTC heater of high power density | |
| CN202930863U (en) | Side-push plate for generatrix groove connector | |
| CN220191065U (en) | PTC heating rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20210603 |