CN110401992A - A kind of thread guide devices of voltage heating element - Google Patents
A kind of thread guide devices of voltage heating element Download PDFInfo
- Publication number
- CN110401992A CN110401992A CN201910758657.7A CN201910758657A CN110401992A CN 110401992 A CN110401992 A CN 110401992A CN 201910758657 A CN201910758657 A CN 201910758657A CN 110401992 A CN110401992 A CN 110401992A
- Authority
- CN
- China
- Prior art keywords
- thread guide
- insulating sleeve
- guide devices
- heating element
- outer tube
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 238000005485 electric heating Methods 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 28
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H05B3/02—Details
-
- 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
- H05B3/02—Details
- H05B3/03—Electrodes
-
- 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
Landscapes
- Resistance Heating (AREA)
Abstract
The present invention relates to field of electric heating, and in particular to a kind of thread guide devices of voltage heating element.The thread guide devices of the voltage heating element include: electric heating outer tube, filled with insulation powder in the inner cavity of the electric heating outer tube；The front end of insulating sleeve, the insulating sleeve penetrates in the insulation powder from the rear end of the electric heating outer tube；Electrode bar, the insulating sleeve are wrapped on the electrode bar；The front and rear ends of the electrode bar are exposed.The thread guide devices of the voltage heating element, increase creepage distance and electric clearance, meet electrical safety requirements when mesohigh application.
Description
Technical field
The present invention relates to field of electric heating, and in particular to a kind of thread guide devices of voltage heating element.
Background technique
The thread guide devices of the thread guide devices of voltage heating element in the prior art, which are all made of insulating cement, is isolated, but
Bonding force between insulating cement and the magnesium oxide insulated powder of compacting is inadequate.Due to the structure feature, so that in the prior art
Voltage heating element thread guide devices there are the risk of adhesion failure, if the bonding between sealant and insulation powder is lost
Effect, will have the gap channel between electrode and heating element shell, in low-tension supply in application, the gap passage, which is appointed, can so meet electricity
The requirement in gas gap and creepage distance, but since the length of the sealant between electrode and heating element shell is shorter, in 1kv
And it will be unable to the requirement for meeting electric clearance and creepage distance when the application of above mesohigh power supply.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of thread guide devices of voltage heating element, institute
The thread guide devices for stating electrical heating elements, increase creepage distance and electric clearance, even if insulation glue-line adhesion failure, appoints and so meet
Electrical safety requirements when mesohigh is applied.
The technical solution provided according to the present invention, a kind of thread guide devices of voltage heating element, the voltage heating element
Thread guide devices include:
Electric heating outer tube, filled with insulation powder in the inner cavity of the electric heating outer tube；
The front end of insulating sleeve, the insulating sleeve penetrates in the insulation powder from the rear end of the electric heating outer tube；
Electrode bar, the insulating sleeve are wrapped on the electrode bar；The front and rear ends of the electrode bar are exposed.
Further, heating wire, the front end of the heating wire connection electrode stick are equipped in the insulation powder.
Further, the insulation powder is compacted into as insulating layer, is formed in the insulating layer of electric heating outer tube back-end
With the step groove of the electric heating outer coaxial tube；
The outer surface of the front end of the insulating sleeve is bonded fixation with the step rooved face.
Further, insulation glue-line is equipped between insulating sleeve leading exterior surface and step rooved face.
From described above as can be seen that the thread guide devices of voltage heating element provided by the invention have compared with prior art
Have the advantage that electrode bar is coated by insulating sleeve, to considerably increase the electric equipment compartment between electrode bar and electric heating outer tube
Gap and creepage distance.It is aided with insulation glue-line simultaneously, insulating sleeve can be adhesively fixed in the insulation powder of inside compacting, be made
Formation it is securely whole.
And can still have between heating element electric heating outer tube and electrode bar in the case where insulating cement adhesion failure
Enough electric clearances and creepage distance meet electrical safety requirements when mesohigh power supply.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of the invention.
Fig. 2 is the structural schematic diagram of second of embodiment of the invention.
100. electric heating outer tube, 200. insulation powders, 300. insulating sleeves, 400. electrode bars, 500. heating wire,
600. step grooves, 700. insulation glue-lines.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.Wherein identical components are presented with like reference characters.It needs to illustrate
It is that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to the direction in attached drawing.It uses
Word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
As the first embodiment of the invention, as shown in Figure 1, a kind of thread guide devices of voltage heating element are provided, it is described
The thread guide devices of voltage heating element include:
Electric heating outer tube 100, filled with insulation powder 200 in the inner cavity of the electric heating outer tube 100；Preferably, the insulation
Powder 200 can be using magnesia powder or other insulation powders；
The front end of insulating sleeve 300, the insulating sleeve 300 penetrates from the rear end of the electric heating outer tube 100 and fixes fitting
In the insulation powder 200；The insulating sleeve 300 is flexible insulating casing 300；300 front end of insulating sleeve passes through
The fitting of draw technique is fixed in insulation powder 200.
Electrode bar 400, the insulating sleeve 300 are wrapped in the middle part of the electrode bar 400, before the electrode bar 400
End exposes to the front end of the insulating sleeve 300, and the rear end of the electrode bar 400 exposes to the rear end of the insulating sleeve 300；
Heating wire 500, the front end of the 500 connection electrode stick 400 of heating wire are equipped in the insulation powder 200.
It is understood that electrode bar 400 is coated by insulating sleeve 300, to block outside electrode bar 400 and electric heating
Electric path between pipe 100.The structure can realize the longer electric clearance and creepage distance between charging member, height in satisfaction
Electrical safety requirements when voltage source.
As a second embodiment of the present invention, described as shown in Fig. 2, providing a kind of thread guide devices of voltage heating element
The thread guide devices of voltage heating element include:
Electric heating outer tube 100, filled with insulation powder 200, the insulation powder 200 in the inner cavity of the electric heating outer tube 100
Compacting becomes insulating layer, it is preferable that the insulation powder 200 that compacting becomes insulating layer uses magnesia powder or other insulating powders
Material；The step groove 600 coaxial with the electric heating outer tube 100 is formed in the insulating layer of 100 rear end of electric heating outer tube；
The front end of insulating sleeve 300, the insulating sleeve 300 is set in the step groove 600, and outside 300 front end of insulating sleeve
Surface is bonded fixation with 600 surface of step groove, and the rear end of the insulating sleeve 300 is stretched from the rear end of electric heating outer tube 100
Out.Specifically, insulation glue-line 700 is equipped between 300 leading exterior surface of insulating sleeve and 600 surface of step groove, it is described exhausted
Edge glue-line 700 is used to the 300 first end outer surface of insulating sleeve being bonded fixation with 600 surface of step groove.
Electrode bar 400, the insulating sleeve 300 are wrapped in the middle part of the electrode bar 400, before the electrode bar 400
End exposes to the front end of the insulating sleeve 300, and the rear end of the electrode bar 400 exposes to the rear end of the insulating sleeve 300；
Heating wire 500, the front end of the 500 connection electrode stick 40 of heating wire are equipped in the insulation powder 200.
It is understood that electrode bar 400 is coated by insulating sleeve 300, to block outside electrode bar 400 and electric heating
Electric path between pipe 100.It is aided with insulation glue-line 700 simultaneously, insulating sleeve 300 can be adhesively fixed in inside compacting
It insulate in powder 200, is allowed to form secured entirety, which combines the longer electric clearance between charging member can be achieved and climb
Electrical distance, and can still have between heating element electric heating outer tube and electrode bar in the case where insulating cement adhesion failure
Enough electric clearances and creepage distance meet electrical safety requirements when mesohigh power supply.
It should be understood by those ordinary skilled in the art that: the above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all any modification, equivalent substitution, improvement and etc. within purport of the invention, done should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of thread guide devices of voltage heating element, which is characterized in that the thread guide devices of the voltage heating element include:
Electric heating outer tube (100), filled with insulation powder (200) in the inner cavity of the electric heating outer tube (100)；
Insulating sleeve (300), the front end of the insulating sleeve (300) penetrate described from the rear end of the electric heating outer tube (100)
In insulation powder (200)；
Electrode bar (400), the insulating sleeve (300) are wrapped on the electrode bar (400)；Before the electrode bar (400),
Both ends are exposed afterwards.
2. the thread guide devices of voltage heating element as described in claim 1, which is characterized in that in the insulation powder (200)
Equipped with heating wire (500), the front end of heating wire (500) the connection electrode stick (400).
3. the thread guide devices of voltage heating element as described in claim 1, which is characterized in that insulation powder (200) pressure
It is real to become insulating layer, it is formed in the insulating layer of electric heating outer tube (100) rear end coaxial with the electric heating outer tube (100)
Step groove (600)；
The outer surface of insulating sleeve (300) front end is bonded fixation with the step groove (600) surface.
4. the thread guide devices of voltage heating element as claimed in claim 3, which is characterized in that outside insulating sleeve (300) front end
Insulation glue-line (700) is equipped between surface and step groove (600) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758657.7A CN110401992A (en) | 2019-08-16 | 2019-08-16 | A kind of thread guide devices of voltage heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758657.7A CN110401992A (en) | 2019-08-16 | 2019-08-16 | A kind of thread guide devices of voltage heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110401992A true CN110401992A (en) | 2019-11-01 |
Family
ID=68328593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910758657.7A Pending CN110401992A (en) | 2019-08-16 | 2019-08-16 | A kind of thread guide devices of voltage heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110401992A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588253Y (en) * | 2002-09-18 | 2003-11-26 | 杨奎 | Electric heater |
| CN207926947U (en) * | 2017-12-18 | 2018-09-28 | 佛山市欧卡电热设计有限公司 | A kind of tubular metal electrical heating elements of high electrical insulation properties |
| CN210431938U (en) * | 2019-08-16 | 2020-04-28 | 无锡博睿奥克电气有限公司 | Lead device of medium-high voltage heating element |
-
2019
- 2019-08-16 CN CN201910758657.7A patent/CN110401992A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588253Y (en) * | 2002-09-18 | 2003-11-26 | 杨奎 | Electric heater |
| CN207926947U (en) * | 2017-12-18 | 2018-09-28 | 佛山市欧卡电热设计有限公司 | A kind of tubular metal electrical heating elements of high electrical insulation properties |
| CN210431938U (en) * | 2019-08-16 | 2020-04-28 | 无锡博睿奥克电气有限公司 | Lead device of medium-high voltage heating element |
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