CN205864764U - A kind of antioxidation electric heating body - Google Patents
A kind of antioxidation electric heating body Download PDFInfo
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- CN205864764U CN205864764U CN201620819545.XU CN201620819545U CN205864764U CN 205864764 U CN205864764 U CN 205864764U CN 201620819545 U CN201620819545 U CN 201620819545U CN 205864764 U CN205864764 U CN 205864764U
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- antioxidation
- electric heating
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- heating body
- insulating substrate
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Abstract
This utility model relates to electrothermal film heater technical field; specifically disclose a kind of antioxidation electric heating body; including insulating substrate, the conductive heating layer that is arranged on insulating substrate, and the electrode being connected with conductive heating layer, described conductive heating layer covers one layer of zirconium oxide protective layer.This utility model forms one layer on conductive heating layer surface and has insulation high temperature resistant, high, the protective layer of antioxidant anticorrosive, greatly improves safety and the service life of electrothermal film device.
Description
Technical field
This utility model relates to electrothermal film heater technical field, particularly relates to a kind of antioxidation electric heating body.
Background technology
The heater of electric heating appliance traditionally is mainly metal electric heating silk heater, and metal electric heating silk is as electric heating body
Have a disadvantage in that 1, the thermal efficiency low, the most only 40 ~ 60%；2, heat uneven；3, operating temperature is high (800 DEG C), easily
Oxidation, service life is short；4, must there is resistant to elevated temperatures insulant such as pottery, mica sheet, asbestos etc. with the use of, cost height.
The electrothermal film type electric heating body occurred later, has thermal efficiency height, homogeneous heating, length in service life, low cost and other advantages, one
Determine to overcome in degree the disadvantages mentioned above of metal electric heating silk.But, the heater partial denudation of existing electrothermal film heater exists
In air, particularly high power high-temperature type heater, does not has insulation protection, does not has anti-oxidation, anti-corrosion protection, therefore, is growing
After time use, heater part is easily corroded and is caused damaging of heating element, therefore, it is necessary to improve this.
Utility model content
In view of this, the purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that one is avoided that heater
Part suffers the electric heating body of oxide etch, improves safety and the service life of electrothermal film device.
In order to solve above-mentioned technical problem, this utility model uses following scheme to realize:
A kind of antioxidation electric heating body, including insulating substrate, the conductive heating layer that is arranged on insulating substrate, and with lead
The electrode that electricity heating layer connects, described conductive heating layer covers one layer of zirconium oxide protective layer.
Insulating substrate can select the thermostable heat-conductive insulant such as devitrified glass, quartz-ceramics, multiple on insulating substrate
The conductive exothermal material that closes forms conductive heating layer, conductive exothermal material can use brushing, scratch, spray, dip-coating, impressing,
The techniques such as transfer, silk screen printing cover on insulating substrate.For powerful electric heating body, owing to work long hours is in
250 ~ 300 DEG C, dielectric strength requires, more than 1250V, temporarily do not have good insulation processing means in prior art.This practicality is new
Type uses zirconium oxide cover conductive heating layer and form protection.Zirconia slurry can use the techniques such as spraying, silk screen printing to paste
On conductive heating layer.The fusing point of zirconium oxide own is high, do not aoxidize, and more than 1500 DEG C, under superhigh temperature oxidizing atmosphere, life-time service is still
Complete fiber shape can be kept, its high temeperature chemistry stable in properties, corrosion-resistant, antioxidation, anti-thermal shock, Bu Huifa, pollution-free.By
In the characteristic that zirconium oxide is good, form one layer on conductive heating layer surface after solidification and there is insulation high temperature resistant, high, antioxidant anticorrosive
Protective layer, greatly improve safety and the service life of electrothermal film device.
The thickness of zirconium oxide protective layer is not the thickest more good or more Bao Yuehao, when thickness is less than to a certain degree, and zirconium oxide
The reversible of crystal formation is along with bulk effect in the case of a high temperature, easily causes the cracking of zirconium oxide protective layer, thus can not be right
Conductive heating layer plays a very good protection；Thickness, higher than time to a certain degree, can increase cost.Due to every kind of insulated substrate
Character is different, to this end, inventor has done substantial amounts of test, selects suitably sized parameter interval.Described zirconium oxide protective layer
Thickness be 0.07 ~ 0.2mm.Preferably, the thickness of described zirconium oxide protective layer is 0.10 ~ 0.15mm.
Described conductive heating layer is any geometry that conductive exothermal material is formed, the adjacent both sides of described geometry
Distance be 1mm ~ 200mm.Preferably, the distance on the adjacent both sides of described geometry is 5mm ~ 100mm.Due to conductive exothermal
The geometry of layer will directly affect the electrical heating power of conductive heating layer, also can affect the service life of zirconium oxide protective layer,
Therefore inventor draws the parameter of optimum by lot of experiments.
Form groove on described insulating substrate and form geometry with the filling realizing conductive exothermal material.It is arranged on insulation
The conductive exothermal material heating of substrate surface is only along insulating substrate longitudinally transmission (this sentences thickness direction for longitudinally), so
The shortcoming that heat transfer is slow will be caused, but, in this utility model, insulating substrate forming groove, conductive exothermal material is filled
Form the geometry of conductive exothermal to groove, now conductive exothermal material heating just can be transmitted in longitudinally and laterally away,
Substantially increase heat transfer efficiency.
The cross section of described groove is trapezoidal, and be in insulating substrate surface the upper end of for, be within insulating substrate
For going to the bottom.Insulating substrate is internally formed wedge angle so that heat is except can be along in addition to horizontal and vertical transmission, moreover it is possible in insulation
The incline direction of base material transmits, thus further improves heat transfer efficiency.
Certainly, the width at the upper end will be a suitable scope, to ensure that groove is unlikely to excessive in order to avoid insulating substrate
Rupture.The upper bottom width degree of described trapezoidal groove is 1 ~ 100mm.Preferably, the upper bottom width degree of described trapezoidal groove is 5 ~ 80mm.
Compared with prior art, this utility model has the advantages that this utility model is on conductive heating layer surface
Form one layer and there is insulation high temperature resistant, high, the protective layer of antioxidant anticorrosive, greatly improve electrothermal film device safety and
Service life.
Accompanying drawing explanation
Fig. 1 is example structure schematic diagram；
Fig. 2 is example structure schematic diagram.
Detailed description of the invention
In order to allow those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with the accompanying drawings to this
Utility model is further elaborated.
Embodiment
As illustrated in fig. 1 and 2, a kind of antioxidation electric heating body, including insulating substrate 100, it is arranged on insulating substrate 100
Conductive heating layer 200, and the electrode being connected with conductive heating layer 200, described conductive heating layer 200 covers one layer of zirconium oxide
Protective layer 300.The thickness of described zirconium oxide protective layer 300 is 0.1mm.Described conductive heating layer 200 is conductive exothermal material shape
Any geometry become, the distance on the adjacent both sides of described geometry is 10mm.Groove is formed on described insulating substrate 100
110 form geometry to realize the filling of conductive exothermal material.The cross section of described groove 110 is trapezoidal, and is in insulation
Base material 100 surface the upper end of for, be within insulating substrate for going to the bottom.The upper bottom width degree of described trapezoidal groove is 5mm.
Above-described embodiment is only wherein specific implementation of the present utility model, and it describes more concrete and detailed, but also
Therefore the restriction to this utility model the scope of the claims can not be interpreted as.It should be pointed out that, for the ordinary skill of this area
For personnel, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these are apparent
Alternative forms belong to protection domain of the present utility model.
Claims (9)
1. an antioxidation electric heating body, including insulating substrate, the conductive heating layer that is arranged on insulating substrate, and with conduction
The electrode that heating layer connects, it is characterised in that cover one layer of zirconium oxide protective layer on described conductive heating layer.
Antioxidation electric heating body the most according to claim 1, it is characterised in that the thickness of described zirconium oxide protective layer is
0.07~0.2mm。
Antioxidation electric heating body the most according to claim 2, it is characterised in that the thickness of described zirconium oxide protective layer is
0.10 ~ 0.15mm.
Antioxidation electric heating body the most according to claim 1, it is characterised in that described conductive heating layer is conductive exothermal material
Any geometry that material is formed, the distance on the adjacent both sides of described geometry is 1mm ~ 200mm.
Antioxidation electric heating body the most according to claim 4, it is characterised in that the adjacent both sides of described geometry away from
From for 5mm ~ 100mm.
6. according to the antioxidation electric heating body described in claim 4 or 5, it is characterised in that form groove on described insulating substrate
To realize the filling formation geometry of conductive exothermal material.
Antioxidation electric heating body the most according to claim 6, it is characterised in that the cross section of described groove is trapezoidal, and
Be in insulating substrate surface the upper end of for, be within insulating substrate for going to the bottom.
Antioxidation electric heating body the most according to claim 7, it is characterised in that the upper bottom width degree of described trapezoidal groove is 1 ~
100mm。
Antioxidation electric heating body the most according to claim 8, it is characterised in that the upper bottom width degree of described trapezoidal groove is 5 ~
80mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620819545.XU CN205864764U (en) | 2016-08-01 | 2016-08-01 | A kind of antioxidation electric heating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620819545.XU CN205864764U (en) | 2016-08-01 | 2016-08-01 | A kind of antioxidation electric heating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205864764U true CN205864764U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620819545.XU Active CN205864764U (en) | 2016-08-01 | 2016-08-01 | A kind of antioxidation electric heating body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601103A (en) * | 2018-05-16 | 2018-09-28 | 浙江欧兰顿电器科技有限公司 | A kind of processing method of age inhibiting PTC heat generating components |
-
2016
- 2016-08-01 CN CN201620819545.XU patent/CN205864764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601103A (en) * | 2018-05-16 | 2018-09-28 | 浙江欧兰顿电器科技有限公司 | A kind of processing method of age inhibiting PTC heat generating components |
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| GR01 | Patent grant |