CN102065587A - High-power electric heater - Google Patents
High-power electric heater Download PDFInfo
- Publication number
- CN102065587A CN102065587A CN2009102625730A CN200910262573A CN102065587A CN 102065587 A CN102065587 A CN 102065587A CN 2009102625730 A CN2009102625730 A CN 2009102625730A CN 200910262573 A CN200910262573 A CN 200910262573A CN 102065587 A CN102065587 A CN 102065587A
- Authority
- CN
- China
- Prior art keywords
- shell
- heating element
- dielectric
- film
- tension
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920006362 Teflon® Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
-
- 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
- H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
Landscapes
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
Abstract
The invention relates to a high-power electric heater (1), which comprises a heating element (2) guiding the heating current, a conductive housing (3) enclosing the conductive heating element (2) with an interval therebetween, and an electrically insulating and thermally conducting medium (12) filling the internal space of the housing (3) in a highly sealed way under the condition that the conductive heating element (2) is embedded. A high-voltage resistant insulation film (14) is provided and equipped on the inner surface (13) of the housing (3), in order to achieve a 10000-VAC test voltage when the high-power electric heater (1) is applied. By means of the insulation film (14), the housing (3) and the highly sealed insulating medium (12) are separated.
Description
Technical field
The present invention relates to a kind of high power electrothermal device, it comprises that the guiding heating current passes through heating element wherein; Surround the external conductive casing of the heating element of conduction at certain intervals; And dielectric electric insulation, heat conduction and the inner space of high-seal ground filling shell under the situation of the heating element that is embedded with conduction.
Background technology
This type of high power electrothermal device is characterised in that its high leakproofness and the high efficiency especially heat output that brings thus.
Heating element is embedded into electric insulation and in the dielectric of heat conduction.This type of high power electrothermal device can be used for various uses being up under 900 ℃ the working temperature, for example is used for solid, gas and liquid medium are carried out electric heating, such as deposite metal, thermophore equipment, water under high pressure, container, pressing mold or the like.
This type of high power electrothermal device known in the prior art normally designs for the test voltage that is up to 2500VAC.
Summary of the invention
From prior art described above, task of the present invention is, further improves the high power electrothermal device of the described type of the beginning part, so that can realize the test voltage until high pressure range when it moves.
According to the present invention, this task realizes in the following way: on the inside and outside shell surface of the shell of high power electrothermal device dielectric film is set, by this dielectric film shell is separated with the dielectric of high-seal.Can reach the test voltage of 10000VAC at least and therefore reach test voltage in the high pressure range by this new structure of high power electrothermal device according to the present invention.This especially has the meaning that day by day increases for the specific application area in the track technology.By between the inside and outside shell surface of the shell of high power electrothermal device and dielectric, arranging anti-high-tension dielectric film arranged according to the present invention, providing electric blockade between shell and the dielectric or between the heating element in shell and embedding dielectric, this electricity blocks and makes the test voltage of previously mentioned 10000VAC at least become possibility---and therefore be in the high pressure range.Under the situation of high power electrothermal device known in the prior art, because the little spacing between heating element and the external conductive casing, so can not realize the test voltage that this type of high pressure range is interior.
Anti-high-tension dielectric film can advantageously be constructed to polyimide film (Kaptonfilm), polyethylene film, Teflon film (Teflonfilm) or the like, and wherein the physical characteristic of the above mentioned insulating material film that causes therefrom making has high puncture voltage.
In a kind of method that is used for making according to high power electrothermal device of the present invention, the anti-high-tension dielectric film of for example being made by polyimides, polyethylene or Teflon is applied to the high power electrothermal device shell at sheathing material and be contained in the shell and be embedded with on the inside and outside shell surface between the dielectric of heating element, and subsequently, will be sealed to anti-high-tension high-power heater by the device that shell, anti-high-tension dielectric film, dielectric and heating element constitute.
Description of drawings
Followingly further specify the present invention, wherein, show to unique accompanying drawing principle execution mode according to high power electrothermal device of the present invention with reference to accompanying drawing and according to an execution mode.
Embodiment
Have heating element 2 according to a shown high power electrothermal device 1 according to the present invention of execution mode in unique accompanying drawing, this heating element 2 is accommodated in the inner space of shell 3.The two ends of heating element 2 are fixed in the connecting elements 4,5, and heating element 2 is connected with two electric connecting terminals or electric wiring terminal 6,7 by these connecting elementss 4,5.These two electric connecting terminals or electric wiring terminal 6,7 be connected at this not shown power supply.
Two connecting elementss 4,5 are accommodated in the transition position between sealing substance 8 and sealing pottery 9 that connects in the shell 10, and wherein sealing material 8 closes shell 3 at the binding post side seal, and this sealing pottery 9 has two part 9a, 9b in an illustrated embodiment.
By end wall sealing 11 shell 3 is closed back to the end that connects shell 10 at it.
In shell 3, heating element 2 prolongs and the inner space of sealed material 8 sealings of sealing 11 of the end wall of shell 3 and shell 3 as already mentioned like that, and wherein heating element 2 extends on the whole axial length of shell 3 to a certain extent.
Filling is come by dielectric 12 in the inner space of the shell 3 of high power electrothermal device 1, and heating element is embedded in the dielectric 12, contacts so that can not produce between the inside and outside shell surface 13 of heating element 2 and shell 3.
Dielectric can for example be magnesium oxide or other certain based on the suitable material of pottery.
In addition, dielectric film 14 is applied between the inside and outside shell surface 13 of dielectric 12 and shell 3.This dielectric film 14 makes the inside and outside shell surface 13 of shell 3 separate with dielectric 12 and for example is constructed to polyimide film, polyethylene film or Teflon film.Therefore this dielectric film 14 has high puncture voltage and is forming electric blockade between the dielectric 12 of the inside and outside shell surface 13 of shell 3 and electric insulation and heat conduction or between the inside and outside shell surface 13 of shell 3 and the heating element 2 that is contained in the conduction in the dielectric 12 owing to its composition that conforms with material.Because this dielectric film 14, so can use the test voltage that is significantly higher than 10000VAC and therefore is positioned at high pressure range to operate high power electrothermal device 1 described above.
When making high power electrothermal device 1 described above, between the inside and outside shell surface 13 of shell 3 and the dielectric 12 that is embedded with heating element 2, use and resist high-tension dielectric film 14.In view of the above, the device that is made of shell 3, anti-high-tension dielectric film 14, dielectric 12 and heating element 2 is sealed to described above according to high power electrothermal device 1 of the present invention.
Claims (3)
1. high power electrothermal device comprises:
Heating element (2) guides heating current by described heating element (2);
Shell (3), described shell (3) are conduction and heating element (2) that surround described conduction at certain intervals; And
Dielectric (12), described dielectric (12) be electric insulation and heat conduction and under the situation that is embedded with the heating element of described conduction (2) inner space of the described shell of high-seal ground filling (3),
It is characterized in that,
On the inside and outside shell surface (13) of described shell (3), be provided with anti-high-tension dielectric film (14), described shell (3) separated with the dielectric (12) of described high-seal by described dielectric film (14).
2. high power electrothermal device as claimed in claim 1 is characterized in that, described anti-high-tension dielectric film (14) is configured to polyimide film, polyethylene film, Teflon film etc.
3. method that is used to make high power electrothermal device (1), it is characterized in that, will be for example by polyimides, anti-high-tension dielectric film (14) that polyethylene or Teflon are made is applied to the shell (3) of described high power electrothermal device (1), at described sheathing material and be contained in the described shell (3) and be embedded with on the inside and outside shell surface (13) between the dielectric (12) of heating element (2), and subsequently, will be by described shell (3), described anti-high-tension dielectric film (14), the device that described dielectric (12) and described heating element (2) constitute is sealed to anti-high-tension high-power heater (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910053791 DE102009053791A1 (en) | 2009-11-18 | 2009-11-18 | High power heating cartridge, has high voltage fixed insulation film arranged on inner mantle surface of mantle and separating mantle from insulation medium, which fulfills inner chamber of mantle |
| DE102009053791.0 | 2009-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102065587A true CN102065587A (en) | 2011-05-18 |
| CN102065587B CN102065587B (en) | 2014-12-24 |
Family
ID=43877730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910262573.0A Expired - Fee Related CN102065587B (en) | 2009-11-18 | 2009-12-23 | High-power electric heater |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102065587B (en) |
| DE (1) | DE102009053791A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106507518A (en) * | 2015-09-04 | 2017-03-15 | 塔克&海林阁有限公司 | Fluid heater and the method for preparing the heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54112044A (en) * | 1978-02-22 | 1979-09-01 | Hitachi Heating Appliance Co Ltd | Terminal sealing method of sheathed heater |
| CN2039489U (en) * | 1988-09-26 | 1989-06-14 | 福州大学科学技术开发服务公司 | Tubular electric heater |
| CN2108396U (en) * | 1991-06-06 | 1992-06-24 | 佳木斯市电热电器厂 | Sealed tubular explosion-proof metal electrothermal element |
| CN1068236A (en) * | 1991-06-22 | 1993-01-20 | 西安交通大学 | Temperature automatically controlled heating cable |
| CN2504867Y (en) * | 2001-09-13 | 2002-08-07 | 泉州新日成热熔胶设备有限公司 | Electrical heating wire |
| CN201204706Y (en) * | 2008-06-13 | 2009-03-04 | 谭羽非 | Carbon fiber electric heating plate with anti-electricity wall |
-
2009
- 2009-11-18 DE DE200910053791 patent/DE102009053791A1/en not_active Withdrawn
- 2009-12-23 CN CN200910262573.0A patent/CN102065587B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54112044A (en) * | 1978-02-22 | 1979-09-01 | Hitachi Heating Appliance Co Ltd | Terminal sealing method of sheathed heater |
| CN2039489U (en) * | 1988-09-26 | 1989-06-14 | 福州大学科学技术开发服务公司 | Tubular electric heater |
| CN2108396U (en) * | 1991-06-06 | 1992-06-24 | 佳木斯市电热电器厂 | Sealed tubular explosion-proof metal electrothermal element |
| CN1068236A (en) * | 1991-06-22 | 1993-01-20 | 西安交通大学 | Temperature automatically controlled heating cable |
| CN2504867Y (en) * | 2001-09-13 | 2002-08-07 | 泉州新日成热熔胶设备有限公司 | Electrical heating wire |
| CN201204706Y (en) * | 2008-06-13 | 2009-03-04 | 谭羽非 | Carbon fiber electric heating plate with anti-electricity wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106507518A (en) * | 2015-09-04 | 2017-03-15 | 塔克&海林阁有限公司 | Fluid heater and the method for preparing the heater |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009053791A1 (en) | 2011-05-19 |
| CN102065587B (en) | 2014-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20141224 Termination date: 20161223 |