CN103402278A - Device capable of improving voltage resistance of electric heating tube - Google Patents
Device capable of improving voltage resistance of electric heating tube Download PDFInfo
- Publication number
- CN103402278A CN103402278A CN2013103023871A CN201310302387A CN103402278A CN 103402278 A CN103402278 A CN 103402278A CN 2013103023871 A CN2013103023871 A CN 2013103023871A CN 201310302387 A CN201310302387 A CN 201310302387A CN 103402278 A CN103402278 A CN 103402278A
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- fixed
- electric heating
- tube
- voltage resistance
- electrothermal tube
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Abstract
The invention provides a device capable of improving the voltage resistance of an electric heating tube. The device is characterized by comprising a fixed sleeve which is fixedly connected with the outer side of the electric heating tube; a mica tube is arranged on the outer side of the fixed sleeve; the mica tube is fixed on the outer side of the fixed sleeve; a ceramic piece combination is arranged on the outer side of the mica tube; the ceramic piece combination comprises two insulating magnetic rings which are fixed on the two sides of a fixed plate respectively. According to the device provided by the invention, the insulation performances of a ceramic piece and mica are utilized; a creep distance and an air gap between the outer wall and the fixed plate are increased by the device so as to improve the insulation performance and the voltage resistance of an insulating tube. With the adoption of the device provided by the invention, the outer walls of the electric heating tubes are mutually insulated, and the length of the electric heating tube can be adjusted according to requirements so as to ensure the voltage resistance; the voltage resistance can be improved by more than 5000 V so that the application requirements of an electric power system can be met, and an application range is greatly expanded.
Description
Technical field
The present invention relates to a kind ofly can improve the withstand voltage device of electrothermal tube, be used for power electronics, wind power generation, braking control, power termination etc.
Background technology
Traditional electrothermal tube is to be directly fixed on fixed head, because electrothermal tube inwall and resistance wire distance is shorter, make proof voltage between itself outer wall and resistive element less than setting (greatly about 1000-1500V), electrothermal tube effect in parallel in use in addition, proof voltage is reduced greatly, can not meet the 3000V proof voltage requirement that conventional resistance value requires, make its scope of application be subject to significant limitation.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can improve the withstand voltage device of electrothermal tube.
In order to achieve the above object, the invention provides and a kind ofly can improve the withstand voltage device of electrothermal tube, it is characterized in that, comprise the fixed sleeving that is fixedly connected on the electrothermal tube outside, the outside of fixed sleeving is provided with micanite pipe, and micanite pipe is fixed on the fixed sleeving outside, and the outside of micanite pipe is provided with the porcelain piece combination, described porcelain piece combination comprises two insulation magnet rings, is individually fixed in the both sides of fixed head.
Preferably, between described electrothermal tube and fixed sleeving, the mode by welding is fixedly connected with.
Preferably, the wall thickness of described micanite pipe is 1mm.
Preferably, described two insulation magnet rings are fixed in respectively the both sides of fixed head by nut.
The present invention utilizes the insulation property of porcelain piece and mica, increases creepage distance and the air gap of outer wall and fixed head by this device, to improve insulation property and the resistance to pressure of insulated tube.Make mutually insulated between its electrothermal tube outer wall after adopting this device, and can adjust as required electrothermal tube length,, to guarantee resistance to pressure, more than can improving withstand voltage 5000V, can meet the application requirements of electric power system, range of application is greatly expanded.
Description of drawings
Fig. 1 is for can improve the withstand voltage apparatus structure schematic diagram of electrothermal tube.
Embodiment
, for the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment
As shown in Figure 1, for improving the withstand voltage apparatus structure schematic diagram of electrothermal tube, describedly can improve the withstand voltage device of electrothermal tube, comprise the fixed sleeving 2 that is welded in electrothermal tube 1 outside, the outside of fixed sleeving 2 is provided with micanite pipe 3, and micanite pipe 3 is fixed on fixed sleeving 2 outsides, and the outside of micanite pipe 3 is provided with porcelain piece combination 5, described porcelain piece combination 5 comprises two insulation magnet rings, is fixed in respectively the both sides of fixed head 4 by nut 6.The wall thickness of micanite pipe 3 is 1mm, and micanite pipe 3 length and porcelain piece combination 5 are equal in length.
During installation, with fixed sleeving 2 and electrothermal tube 1 welding, insert micanite pipe 3 in fixed sleeving 2 outsides, two insulation magnet rings are inserted on fixed head, electrothermal tube 1 is fixed on fixed head 4 together with fixed sleeving 2 and micanite pipe 3, and insulation magnet ring two ends are fixing with nut 6.
Whether preoperation inspection nut 6 is tightened, the insulation magnet ring whether contact firmly with fixed head 4, whether resistor wiring solid and reliable, with epidermis without short circuit phenomenon.Reach the regulation requirement according to the proof voltage of working condition measurement binding post and fixed head 4 before energising.
Claims (4)
1. one kind can be improved the withstand voltage device of electrothermal tube, it is characterized in that, comprise the fixed sleeving (2) that is fixedly connected on electrothermal tube (1) outside, the outside of fixed sleeving (2) is provided with micanite pipe (3), micanite pipe (3) is fixed on fixed sleeving (2) outside, the outside of micanite pipe (3) is provided with porcelain piece combination (5), and described porcelain piece combination (5) comprises two insulation magnet rings, is individually fixed in the both sides of fixed head (4).
2. as claimed in claim 1ly can improve the withstand voltage device of electrothermal tube, it is characterized in that, the mode by welding between described electrothermal tube (1) and fixed sleeving (2) is fixedly connected with.
3. as claimed in claim 1ly can improve the withstand voltage device of electrothermal tube, it is characterized in that, the wall thickness of described micanite pipe (3) is 1mm.
4. as claimed in claim 1ly can improve the withstand voltage device of electrothermal tube, it is characterized in that, described two insulation magnet rings are fixed in respectively the both sides of fixed head (4) by nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103023871A CN103402278A (en) | 2013-07-17 | 2013-07-17 | Device capable of improving voltage resistance of electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103023871A CN103402278A (en) | 2013-07-17 | 2013-07-17 | Device capable of improving voltage resistance of electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103402278A true CN103402278A (en) | 2013-11-20 |
Family
ID=49565766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103023871A Pending CN103402278A (en) | 2013-07-17 | 2013-07-17 | Device capable of improving voltage resistance of electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103402278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105430778A (en) * | 2015-11-27 | 2016-03-23 | 王琳 | Plug-in type electrical heating tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157373A (en) * | 1991-03-08 | 1992-10-20 | Post Glover Resistors, Inc. | Post glover resistor |
| CN2240114Y (en) * | 1995-08-30 | 1996-11-13 | 秦道明 | Electric heater |
| CN201549287U (en) * | 2009-10-29 | 2010-08-11 | 保定天威集团有限公司 | Thirty-five KV-level pure porcelain bushing |
| CN102522855A (en) * | 2011-11-23 | 2012-06-27 | 山西汾西重工有限责任公司 | Slip ring for wind driven generator with small power and assembly process thereof |
| CN203378054U (en) * | 2013-07-17 | 2014-01-01 | 上海鹰峰电子科技有限公司 | An apparatus capable of increasing the voltage-withstanding performance of an electric heating tube |
-
2013
- 2013-07-17 CN CN2013103023871A patent/CN103402278A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157373A (en) * | 1991-03-08 | 1992-10-20 | Post Glover Resistors, Inc. | Post glover resistor |
| CN2240114Y (en) * | 1995-08-30 | 1996-11-13 | 秦道明 | Electric heater |
| CN201549287U (en) * | 2009-10-29 | 2010-08-11 | 保定天威集团有限公司 | Thirty-five KV-level pure porcelain bushing |
| CN102522855A (en) * | 2011-11-23 | 2012-06-27 | 山西汾西重工有限责任公司 | Slip ring for wind driven generator with small power and assembly process thereof |
| CN203378054U (en) * | 2013-07-17 | 2014-01-01 | 上海鹰峰电子科技有限公司 | An apparatus capable of increasing the voltage-withstanding performance of an electric heating tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105430778A (en) * | 2015-11-27 | 2016-03-23 | 王琳 | Plug-in type electrical heating tube |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131120 |