CN203378054U - An apparatus capable of increasing the voltage-withstanding performance of an electric heating tube - Google Patents
An apparatus capable of increasing the voltage-withstanding performance of an electric heating tube Download PDFInfo
- Publication number
- CN203378054U CN203378054U CN201320429666.XU CN201320429666U CN203378054U CN 203378054 U CN203378054 U CN 203378054U CN 201320429666 U CN201320429666 U CN 201320429666U CN 203378054 U CN203378054 U CN 203378054U
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- China
- Prior art keywords
- fixed
- electric heating
- heating tube
- voltage
- electrothermal tube
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- Expired - Lifetime
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Abstract
The utility model provides an apparatus capable of increasing the voltage-withstanding performance of an electric heating tube. The apparatus is characterized in that the apparatus comprises fixed sleeves fixedly connected with the outer side of the electric heating tube, that the outer side of each fixed sleeve is equipped with a mica pipe, that the mica pipe is fixed on the outer side of the fixed sleeve, that a porcelain member combination is disposed on the outer side of the mica pipe and comprises two insulating magnet rings which are respectively fixed on the two sides of a fixed plate. Using the insulating performance of the porcelain member and the mica, the apparatus increases creep distance and an air gap between an outer wall and the fixed plate so as to increase the insulating performance and the voltage-withstanding performance of an insulating tube. The outer walls of the electric heating tube are mutually insulated by using the apparatus and the voltage-withstanding performance of the electric heating tube can be guaranteed by adjusting the length of the electric heating tube as required. A voltage-withstanding value can be increased to more than 5000V. Therefore, the electric heating tube may satisfy a using requirement of a power system and has an expanded application range.
Description
Technical field
The utility model relates to a kind ofly can improve the withstand voltage device of electrothermal tube, 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 the proof voltage between itself outer wall and resistive element be 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.
The utility model content
The purpose of this utility model is to provide and a kind ofly can improves the withstand voltage device of electrothermal tube.
In order to achieve the above object, the utility model provides a kind of 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 utility model 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.
The accompanying drawing explanation
Fig. 1 is for can improve the withstand voltage apparatus structure schematic diagram of electrothermal tube.
Embodiment
For the utility model 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 it is 5 equal in length that micanite pipe 3 length and porcelain piece combine.
During installation, by 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 with fixed head 4, whether contact firmly, 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 |
|---|---|---|---|
| CN201320429666.XU CN203378054U (en) | 2013-07-17 | 2013-07-17 | An apparatus capable of increasing the voltage-withstanding performance of an electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320429666.XU CN203378054U (en) | 2013-07-17 | 2013-07-17 | An apparatus capable of increasing the voltage-withstanding performance of an electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203378054U true CN203378054U (en) | 2014-01-01 |
Family
ID=49840554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320429666.XU Expired - Lifetime CN203378054U (en) | 2013-07-17 | 2013-07-17 | An apparatus capable of increasing the voltage-withstanding performance of an electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203378054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103402278A (en) * | 2013-07-17 | 2013-11-20 | 上海鹰峰电子科技有限公司 | Device capable of improving voltage resistance of electric heating tube |
-
2013
- 2013-07-17 CN CN201320429666.XU patent/CN203378054U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103402278A (en) * | 2013-07-17 | 2013-11-20 | 上海鹰峰电子科技有限公司 | Device capable of improving voltage resistance of electric heating tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201604 Shanghai Songjiang District Shihudang Industrial Park Tang Road, No. 158 Patentee after: SHANGHAI EAGTOP ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 201604 Shanghai Songjiang District Shihudang Industrial Park Tang Road, No. 158 Patentee before: SHANGHAI EAGTOP ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: Expiration and Termination of 39 Volume 3102 Patent on August 4, 2023 Number: 31-02 Volume: 39 |