CN205232479U - PTC electrothermal tube - Google Patents
PTC electrothermal tube Download PDFInfo
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- CN205232479U CN205232479U CN201521035458.7U CN201521035458U CN205232479U CN 205232479 U CN205232479 U CN 205232479U CN 201521035458 U CN201521035458 U CN 201521035458U CN 205232479 U CN205232479 U CN 205232479U
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- electrothermal tube
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- thermal source
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Abstract
The utility model discloses a PTC electrothermal tube, including electrothermal tube heat source shell, the electrothermal tube outer tube, PTC temperature sensitive element, the electrode slice, PTC temperature sensitive element arranges in the electrothermal tube heat source shell, electrode sheet connection PTC temperature sensitive element and power, the through the electrode piece the electrically conductive PTC temperature sensitive element that makes generate heat, electrothermal tube heat source shell is arranged in the electrothermal tube outer tube, a serial communication port, the source that generates heat that PTC temperature sensitive element and electrode slice are constituteed adopts the cladding of thermal insulation pottery as the first insulation layer, the thermal insulation pottery is outer to adopt the polyimide insulating film cladding as the second insulating layer, above -mentioned structure is generated heat the source to PTC electrothermal tube and is realized the double insulation protection, avoid suffering the corruption because of the electrothermal tube outer tube, leak, and cause the potential safety hazard. Can not cause simultaneously yet and fill heat conduction sand between water pollution electrothermal tube heat source shell and the electrothermal tube outer tube, reduce the contact heat resistance of electrothermal tube heat source shell and electrothermal tube outer tube, realize the heat high efficiency and export the electrothermal tube outer tube, improve PTC electrothermal tube's heat conduction efficiency.
Description
Technical field
The utility model relates to electrothermal tube field, is a kind of PTC electrothermal tube specifically.
Background technology
Traditional electrothermal tube adopts heating wire as electric heating element, namely adopts spirality heating wire to be placed in metal tube, recharge MgO powder, forms through draw encapsulation.The shortcoming that this traditional electrical heat pipe has some intrinsic, when the appearance heat of electrothermal tube can not get efficiently radiates heat, inner temperature can be too high, easily causes heating wire to fuse.In addition, operationally, surface temperature can be very high for electrothermal tube, even can be rubescent in anhydrous situation, there is very large potential safety hazard.
Further follow-on electrothermal tube adopts PTC pottery as electric heating element; be fixed in a square opening of aluminium section bar by PTC pottery; the heat that PTC pottery produces is delivered in the waterpipe of aluminium alloy through aluminium alloy; this structure; owing to adopting PTC pottery as electric heating element; it is overheated that heater can not produce; but because adopt aluminium alloy as water pipe; water pipe is easily by aqueous corrosion; pyrotoxin does not have insulation protection; finally cause heater failure, bring the potential safety hazard of electric leakage, water also can be polluted by the white flock aluminium hydroxide produced after corrosion of aluminium alloy simultaneously.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of when ensureing that PTC electrothermal tube has higher heat conduction efficiency; PTC electrothermal tube pyrotoxin is had to the PTC electrothermal tube of double insulation protection; make to avoid in the use procedure of PTC electrothermal tube hidden danger of leaking electricity, and recirculated water can not be caused to pollute.
In order to solve the problems of the technologies described above, the utility model provides a kind of PTC electrothermal tube, comprise electrothermal tube thermal source shell, electrothermal tube outer tube, PTC temperature-sensitive element, electrode slice, PTC temperature-sensitive element is placed in electrothermal tube thermal source shell, electrode slice connects PTC temperature-sensitive element and power supply, by electrode slice conduction, PTC temperature-sensitive element is generated heat, electrothermal tube thermal source shell is placed in electrothermal tube outer tube, it is characterized in that, the pyrotoxin of PTC temperature-sensitive element and electrode slice composition adopts insulating heat-conductive ceramic coatings as the first insulating barrier, insulating heat-conductive top ceramic layer adopts polyimide insulative film coated as the second insulating barrier, thermal conductive sand is filled between electrothermal tube thermal source shell and electrothermal tube outer tube.
Further, providing holes in electrothermal tube thermal source shell, during assembling, is pressed into the contact rod of diameter and hole interference fit, electrothermal tube thermal source outer shell outer wall and electrothermal tube outer tube wall is fitted in hole.
Further, contact rod is iron staff.
Further, electrothermal tube thermal source shell is aluminium section bar.
Further, electrothermal tube outer tube is stainless steel tube.
Further, stainless steel pipe surface spraying Teflon anti-corrosion material or other anti-corrosion materials, stainless steel tube is that 304 pipes or 316 are managed or Ti pipe.
Further, two electrothermal tube thermal source shells are placed in electrothermal tube outer tube.
Further, electrothermal tube thermal source shell is semicircle, and two electrothermal tube thermal source shells are assembled into circle.
Further, bondd by heat conductive silica gel between each element in electrothermal tube thermal source shell.
Compared with prior art, the beneficial effects of the utility model are: the pyrotoxin of described PTC temperature-sensitive element and described electrode slice composition adopts insulating heat-conductive ceramic coatings as the first insulating barrier, insulating heat-conductive top ceramic layer adopts polyimide insulative film coated as the second insulating barrier, double insulation protection is realized to PTC electrothermal tube pyrotoxin, even if electrothermal tube outer tube is corroded, also can not because of the electric leakage of pyrotoxin but flowing water conduction, and cause potential safety hazard, also can not cause water pollutions simultaneously; The insulating properties that PTC electrothermal tube is stronger, meets PTC electrothermal tube and uses in the product having more high-insulativity requirement.Fill thermal conductive sand between electrothermal tube thermal source shell and electrothermal tube outer tube, reduce the contact heat resistance of electrothermal tube thermal source shell and electrothermal tube outer tube, realize heat high efficiency and output to electrothermal tube outer tube, improve the thermal energy conduction efficiency of PTC electrothermal tube.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cross sectional representation of PTC electrothermal tube in the utility model execution mode.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model with this.
As shown in Figure 1, a kind of PTC electrothermal tube, comprises the PTC temperature-sensitive element 3 of electrothermal tube outer tube 2, PTC thermal sensitive ceramics as constant temp. warming of aluminium section bar electrothermal tube thermal source shell 1,304 stainless steel, electrode slice 4, insulating heat-conductive pottery 5.PTC temperature-sensitive element 3 is placed in electrothermal tube thermal source shell 1, and electrode slice 4 connects PTC temperature-sensitive element 3 and power supply, by electrode slice 4 conduction, PTC temperature-sensitive element 3 is generated heat.The insulating heat-conductive pottery 5 coated pyrotoxins be made up of PTC temperature-sensitive element 3 and electrode slice 4; because insulating heat-conductive pottery 5 has the characteristic of high strength, high insulation, high stable; even if there are the tiny grains of sand, electrothermal tube also can not be caused charged, to the insulation protection of PTC electrothermal tube ground floor.The outer polyimide insulative film 6 of unlike material that adopts of insulating heat-conductive pottery 5, as second layer insulating barrier, realizes double insulation, further reinforced insulation, meets PTC electrothermal tube and use in the product having more high-insulativity requirement.Being bondd by heat conductive silica gel between each element in electrothermal tube thermal source shell 1, making the power of PTC temperature-sensitive element 3 must in giving full play to.
Adopt two semicircle electrothermal tube thermal source shells 1 to pack the pyrotoxin be made up of PTC temperature-sensitive element 3 and electrode slice 4 separately, form double calandria, improve power output.Two semicircle electrothermal tube thermal source shells 1 are assembled into circle and are placed in an electrothermal tube outer tube 2, when higher output power, alleviate the requirement to single PTC temperature-sensitive element, and the damage of single PTC temperature-sensitive element is easy to change, and does not waste.Circular arc-shaped side is consistent with the inner surface contour of electrothermal tube outer tube 2, is convenient to electrothermal tube thermal source shell 1 outer wall and electrothermal tube outer tube 2 inwall is fitted, and is beneficial to high heat transfer.A some holes 8 is separated in two assembled portions of plane, the iron staff 9 of press-in certain diameter, two aluminium section bar electrothermal tube thermal source shells 1 are outwards expanded, aluminium section bar electrothermal tube thermal source shell 1 and electrothermal tube outer tube 2 inwall are fitted tightly more, reduce thermal resistance, realize heat high efficiency and output to electrothermal tube outer tube 2, improve the thermal energy conduction efficiency of PTC electrothermal tube.
Between electrothermal tube thermal source shell 1 and electrothermal tube outer tube 2, fill thermal conductive sand 7 as magnesium oxide sand further, reduce contact heat resistance further, realize heat high efficiency and output to electrothermal tube outer tube 2, improve the thermal energy conduction efficiency of PTC electrothermal tube.
At stainless steel electrothermal tube outer tube 2 surface spraying Teflon anti-corrosion material or other anti-corrosion materials, improve the corrosion resistance of PTC electrothermal tube further, extend the useful life of electrothermal tube.
It should be noted that, the foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, as the structure of insulating heat-conductive pottery 5, can adopt plate, also can adopt ship type structure, to realize lateral protection; On Material selec-tion, can aluminium oxide ceramics be adopted, also can adopt the material of other heat conductive insulatings.Polyimide insulative film 6 can adopt the mode of parcel as insulating paper, handled easily, not high to modeling requirement; The shape of flanging can be adopted, convenient location; Also the insulating paper cylinder of circular tube shaped can be adopted, simple to operate, moulding rule.The change of said structure is all within spirit of the present utility model and principle, and other any amendments done within spirit of the present utility model and principle, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (9)
1. a PTC electrothermal tube, comprise electrothermal tube thermal source shell, electrothermal tube outer tube, PTC temperature-sensitive element, electrode slice, described PTC temperature-sensitive element is placed in described electrothermal tube thermal source shell, described electrode slice connects described PTC temperature-sensitive element and power supply, by electrode slice conduction, described PTC temperature-sensitive element is generated heat, described electrothermal tube thermal source shell is placed in described electrothermal tube outer tube, it is characterized in that, the pyrotoxin of described PTC temperature-sensitive element and described electrode slice composition adopts insulating heat-conductive ceramic coatings as the first insulating barrier, described insulating heat-conductive top ceramic layer adopts polyimide insulative film coated as the second insulating barrier, thermal conductive sand is filled between described electrothermal tube thermal source shell and described electrothermal tube outer tube.
2. a kind of PTC electrothermal tube according to claim 1, it is characterized in that, providing holes in described electrothermal tube thermal source shell, during assembling, be pressed into the contact rod of diameter and hole interference fit in described hole, described electrothermal tube thermal source outer shell outer wall and described electrothermal tube outer tube wall are fitted.
3. a kind of PTC electrothermal tube according to claim 2, is characterized in that, described contact rod is iron staff.
4. a kind of PTC electrothermal tube according to claim 1, is characterized in that, described electrothermal tube thermal source shell is aluminium section bar.
5. a kind of PTC electrothermal tube according to claim 1, is characterized in that, described electrothermal tube outer tube is stainless steel tube.
6. a kind of PTC electrothermal tube according to claim 5, is characterized in that, described stainless steel pipe surface spraying Teflon anti-corrosion material or other anti-corrosion materials, and described stainless steel tube is that 304 pipes or 316 are managed or Ti pipe.
7. a kind of PTC electrothermal tube according to any one of claim 1 to 6, is characterized in that, two described electrothermal tube thermal source shells are placed in described electrothermal tube outer tube.
8. a kind of PTC electrothermal tube according to claim 7, is characterized in that, described electrothermal tube thermal source shell is semicircle, and two described electrothermal tube thermal source shells are assembled into circle.
9. a kind of PTC electrothermal tube according to claim 1, is characterized in that, is bondd in described electrothermal tube thermal source shell between each element by heat conductive silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521035458.7U CN205232479U (en) | 2015-12-11 | 2015-12-11 | PTC electrothermal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521035458.7U CN205232479U (en) | 2015-12-11 | 2015-12-11 | PTC electrothermal tube |
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| Publication Number | Publication Date |
|---|---|
| CN205232479U true CN205232479U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521035458.7U Active CN205232479U (en) | 2015-12-11 | 2015-12-11 | PTC electrothermal tube |
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| Country | Link |
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| CN (1) | CN205232479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851874A (en) * | 2017-01-24 | 2017-06-13 | 汕尾比亚迪实业有限公司 | Ceramic electrothermal element core body and preparation method thereof and ceramic electrothermal element fire-bar and heater |
| CN107148096A (en) * | 2017-06-30 | 2017-09-08 | 中国电子科技集团公司第四十八研究所 | Electric hot plate and preparation method thereof and the vacuum drying oven containing electric hot plate |
-
2015
- 2015-12-11 CN CN201521035458.7U patent/CN205232479U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851874A (en) * | 2017-01-24 | 2017-06-13 | 汕尾比亚迪实业有限公司 | Ceramic electrothermal element core body and preparation method thereof and ceramic electrothermal element fire-bar and heater |
| CN107148096A (en) * | 2017-06-30 | 2017-09-08 | 中国电子科技集团公司第四十八研究所 | Electric hot plate and preparation method thereof and the vacuum drying oven containing electric hot plate |
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| GR01 | Patent grant |