CN104401207A - Electrically heated automobile windshield glass - Google Patents
Electrically heated automobile windshield glass Download PDFInfo
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- CN104401207A CN104401207A CN201410649122.3A CN201410649122A CN104401207A CN 104401207 A CN104401207 A CN 104401207A CN 201410649122 A CN201410649122 A CN 201410649122A CN 104401207 A CN104401207 A CN 104401207A
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Abstract
The invention provides electrically heated automobile windshield glass. The electrically heated automobile windshield glass comprises at least one layer of FTO (Fluorine-doped Tin Oxide) conductive glass substrate, wherein electrodes are printed on or adhered to two opposite edges of the FTO conductive glass substrate and are electrically connected with a power supply. The electrically heated automobile windshield glass is simple, reasonable and compact in structure; the FTO conductive glass substrate of which the heating performance is not greatly changed serves as a heating medium of the electrically heated automobile windshield glass, the curved surface and the shape of the machined glass can meet various automobile requirements, and the glass is attractive in appearance and good in rearview effect; moreover, due to the adoption of a surface heating mode, the electrically heated automobile windshield glass is uniformly heated, is not easy to crack, and is high in defrosting speed, deicing speed and snow removal speed.
Description
Technical field
The present invention relates to windshield technology, particularly relate to a kind of electro heat automobile wind shield glass.
Background technology
Vehicle glass is one of important safety component of automobile, has the effect such as protection occupant safety and waterproof and dustproof, heat-resisting and sound insulation.Nowadays, the area of vehicle glass account for car surface long-pending 1/3.According to application site, automotive glass mainly comprises front windshield glass, wind shield glass wind shield, door glass, skylight glass and front/rear quarter light glass etc.Before more than 40 years, windshield has adopted single-piece to bend Windshield, and has abandoned the Windshield of flush type gradually.The windshield of today generally all makees the large curved surface type of an integrally width formula, has certain radian up and down.Along with the development of auto-industry, vehicle glass with heater wire is applied widely, it is almost applied to the rear seat windscreen of all automobiles, it is the surface by the mode of wire mark, special conductive silver paste being printed onto glass, glass is after tempering, conductive silver paste is sintered to glass surface, because it has certain resistance, the frost eliminating glass surface can be generated heat after energising, being beneficial to driver can observe car rear in time situation when driving a vehicle, making automobile in driving procedure, have better traveling comfort and safety.
But this automobile electrothermic glass port is the mode adopting line heating, after heater wire heating, slowly heat is transmitted to heater wire both sides, vehicle glass is heated uneven, once heat temperature raising excessive velocities, or time of heat is long, is easy to the situation occurring that vehicle glass bursts.In addition, this automobile electrothermic glass port is on glass, print heater wire (conductive silver wire), in order to reach good heating effect, the printing width of usual heater wire is not less than 1mm, and the rear seat windscreen of a common small passenger car having tens to twenties heater wires not etc. at least, these visual heater wires all bring certain influence to the outward appearance of automobile and the sight line of driver and crew.
U.S. patent Nos US5540961 discloses one and " has the windshield of metal filament thermoplastic interlayer ", this patent have employed a kind of technical scheme superfine metal tungsten wire (20-50 micron diameter) be laid in the interlayer of automobile front windshield, the function of electric heated defrosting, demist and deicing can be realized, the disadvantage of this scheme is that cost is very high, the shortcoming of another one star is the existence that chaufeur or passenger significantly can see filament, affects attractive in appearance and sight line.
Chinese invention patent application 201210333292.1 discloses " one can electrically heated low-emission coated laminated glass ", and this patent have employed the complex film system containing Ag layer and low-emission coated layer, surface resistance is reduced to 0.4-4ohm/.Although the program has better electric conductivity and larger heating power, because adopt multicoating, also considerably increase cost undoubtedly.
Chinese invention patent CN 98100128.9 proposes one " heat insulation, every the preparation method of white coated glass ", this patent proposes to replace existing heater wire glass port with ITO conductive film glass window, this ITO conductive film glass resistance is low, visible light transmissivity is high, abandon the printing of traditional heater wire, beautified automobile appearance, make to drive traveling comfort and safety are improved.But need to propose, modern automobile almost adopts bending Windshield completely, and therefore in the course of processing of Windshield, need to carry out hot bending operation to plate glass, this action need carries out at the temperature of about 600 DEG C.According to manufacture craft, hot bending operation will be carried out after completing ITO conducting film plated film, but ITO conducting film is when temperature is more than 300 DEG C, and surface resistance can sharply rise.If therefore using ito coated glass as vehicle glass, its heating power far away out of reach eliminates the requirement of glass for vehicle window ice and snow frost.
Summary of the invention
The object of the invention is to, for the heating of above-mentioned orthodox car Windshield line, vehicle glass is heated inequality, and the problem of explosion easily occurs; The sight line of heater wire on automobile appearance and driver and crew is brought and is affected in various degree, and propose a kind of electro heat automobile wind shield glass, this electro heat automobile wind shield glass good looking appearance, backsight effect is good; And this electro heat automobile wind shield glass adopts the mode of face heating, be heated evenly and not easily produce explosion, the speed of defrosting, deicing, snow removing is fast.
For achieving the above object, the technical solution used in the present invention is: a kind of electro heat automobile wind shield glass, comprise at least one deck FTO conducting glass substrate, two edges that described FTO conducting glass substrate is relative print or is pasted with electrode, described electrode is connected with power sourced electric.The setting of electrode is the positive and negative electrode for applying heating power supply.Be appreciated that curved surface and the shape that can be processed into various automotive needs according to this electro heat automobile wind shield glass.
Further, described electro heat automobile wind shield glass is for including the pairglass of PVB (polyvinyl butyral) layer, described pairglass comprises at least one deck FTO conducting glass substrate, two edges that described FTO conducting glass substrate is relative print or is pasted with electrode, described electrode is connected with power sourced electric.
Further, described FTO conducting glass substrate is the float-glass substrate or the borosilicate glass substrate that deposit FTO conducting film, and FTO conducting film is the transparency conducting layer of doped sno_2 fluorine.
Further, described FTO electro-conductive glass can be tempering or non-tempering.
Further, described FTO conducting glass substrate thickness is: 1mm ~ 20mm.Be preferably 2mm ~ 5mm.
Further, the thickness of described FTO conducting film is: 50nm ~ 1000nm.Be preferably 100nm ~ 500nm.
Further, the surface resistance of described FTO conducting glass substrate is: 3ohm/ ~ 100ohm/.
Further, described electrode is bus, conducting film or conducting resinl.
Further, the power supply be applied on electrode is 5 ~ 220V power supply.Be preferably 5-110V.
Further, the light transmittance of described electro heat automobile wind shield glass is 10% ~ 100%.The preparation method of electro heat automobile wind shield glass of the present invention, the method science, rationally, can realize the suitability for industrialized production of electro heat automobile wind shield glass.
The preparation method of electro heat automobile wind shield glass of the present invention, comprises the following steps:
Step 1: trapezoidal cutting, edging, washing are carried out to FTO conducting glass substrate, and dry for standby;
Step 2: on the FTO conducting glass substrate edge that step 1 obtains, relative two frames, respectively printing or stickup positive and negative electrode, and use mould to carry out hot bending and tempering process to FTO conducting glass substrate, obtain the curved glass of desirable strength and curvature;
Or first use mould, hot bending and tempering process are carried out to the FTO conducting glass substrate that step 1 obtains, after obtaining the curved glass of desirable strength and curvature, then on FTO conducting glass substrate edge, relative two frames, printing or stickup positive and negative electrode respectively;
Step 3: be connected with power supply by electrical connection arrangement by positive and negative electrode, obtains electro heat automobile wind shield glass.
Described hot bending and tempering comprise the following steps: be first placed on mould by FTO conducting glass substrate level, send into heating furnace and carry out hot bending process; Then be sent to rapidly cooling air grid region and carry out the process of chilling tempering: the firing rate of wherein said FTO conducting glass substrate is: the time of heat of every 1mm heavy sheet glass is 20-60s: the temperature of described tempering process is 580-680 DEG C.
When described electro heat automobile wind shield glass is for including the pairglass of PVB (polyvinyl butyral) layer, between step 2 and step 3, increase following steps:
Step 2.1: other glass matched with FTO conducting glass substrate are carried out hot bending process separately or with FTO conducting glass substrate simultaneously in mould; Carry out hot bending process to refer to FTO electro-conductive glass and the second glass are overlaped simultaneously, to be placed in mould hot bending simultaneously, both can to increase work efficiency, and also can ensure that the curvature of two sheet glass was more consistent;
Step 2.2: the FTO electro-conductive glass after hot bending and put PVB doubling layer between other glass, adopts traditional doubling technique to carry out doubling process;
Other glass described are simple glass or FTO conducting glass substrate.
Other thickness of glass described are 1mm-10mm.
Electro heat automobile wind shield glass structure of the present invention is simple, compact, its preparation method science, easy, has the following advantages compared with prior art:
(1) electro heat automobile wind shield glass of the present invention includes at least one deck FTO conducting glass substrate, and FTO conducting glass substrate has excellent heat stability, is convenient to carry out hot bending, tempering and doubling process.At high temperature, surface resistance change is very micro-, and therefore after hot bending process, its heating properties, also without large change, can be processed into curved surface and the shape of various automotive needs, while meeting windshield needs, can also beautify automobile appearance for FTO conductive film material.
(2) FTO conducting glass substrate printing opacity is even, can improve the backsight effect of navigating mate.
(3) the present invention's mode of adopting face to heat, on vehicle glass, visual heater wire is printed (after heater wire generates heat with traditional, slowly heat is transmitted to heater wire both sides) compare, vehicle glass be heated evenly, the explosion that can effectively prevent glass from producing because being heated inequality; Meanwhile, the speed of defrosting, deicing, snow removing also greatly improves.
(4), electro heat automobile wind shield glass of the present invention not only can be used for rear windscreen of car glass, can also be used for the position of any useable glass such as front windshield glass, side window glass and skylight glass.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is the structural representation of the embodiment of the present invention 3;
Fig. 4 is the structural representation of the embodiment of the present invention 4;
Fig. 5 is the structural representation of the embodiment of the present invention 5;
Fig. 6 is that the A of Fig. 5 is to cutaway view;
Fig. 7 is the structural representation of the embodiment of the present invention 6;
Fig. 8 is that the B of Fig. 7 is to cutaway view;
Fig. 9 is the structural representation of the embodiment of the present invention 7.
Accompanying drawing identifies: 1-FTO conducting glass substrate, 2-common glass substrates, 3-doubling layer, and 4-conducts electricity silver bar, 5-positive pole, 6-negative pole, 7-direction of current, 8-conductive copper bar; 11-glass substrate; 12-FTO conducting film.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described:
Embodiment 1
Present embodiment discloses a kind of electro heat automobile wind shield glass, as shown in Figure 1, is one deck FTO conducting glass substrate, and the edge of described FTO electro-conductive glass base the right and left prints or is pasted with electrode, described electrode is connected with power sourced electric.Described FTO conducting glass substrate is the float-glass substrate depositing FTO conducting film, and FTO conducting film is the transparency conducting layer of doped sno_2 fluorine.Described FTO conducting glass substrate thickness is: 20mm, the thickness of described FTO conducting film for: described in 1000nm, the surface resistance of FTO conducting glass substrate is: 7ohm/ (7ohm/sq).Described electrode is conducting film silver bar.The power supply be applied on electrode is 36V.Direction of current 7 as shown by arrows.
The preparation method of the present embodiment electro heat automobile wind shield glass, comprises the following steps:
Step 1: cut (by trapezoidal cutting to FTO conduction (surface resistance 7ohm/sq) glass substrate 1, be of a size of upper and lower two the parallel lines length of glass and be respectively 1100mm, 1200mm, two parallel live widths are 800mm), break limit, edging, boring, washing, surface dirt, greasy dirt, impurity etc. are cleaned up, glass substrate after washing is dried, and notices that the glass substrate after drying directly can not be touched with hand.
Step 2: at the oblique opposite side (two limits that irrelevancy is capable) of trapezoidal glass substrate, prints the wide conduction silver bar 4 of 10mm respectively, namely forms positive pole 5, negative pole 6.
Step 3: the above-mentioned plane FTO conducting glass substrate level handled well is placed on mould, deliver to heating furnace heating, when glass temperature reaches about 620 DEG C, with vacuum cup, glass is picked up, then decontrol glass and do free fall, be labelled to mould because Action of Gravity Field is sagging and be shaped, after keeping 10min, be sent to rapidly cooling air grid region, with bull nozzle, high pressure cold air blowed to the two sides of glass, chilling tempering, directly obtains the curved glass of desirable strength and curvature.Chilling blast is 7-8KPa, and the distance between air grid and glass is 10-20mm, chilling period 15-20s.
Step 4: respectively the conduction silver bar 4 of positive pole 5, negative pole 6 is connected with 36V power supply by wire, thus make electric current by FTO conducting film and heated glass window, power density can reach about 160W/m
2.
Embodiment 2
Present embodiment discloses a kind of electro heat automobile wind shield glass, as shown in Figure 2, is one deck FTO conducting glass substrate, and the edge on the upper and lower both sides of described FTO electro-conductive glass base prints or is pasted with electrode, described electrode is connected with power sourced electric.Described FTO conducting glass substrate is the borosilicate glass substrate depositing FTO conducting film.FTO is the transparency conducting layer of doped sno_2 fluorine.Described FTO conducting glass substrate thickness is: 2mm, the thickness of described FTO conducting film for: described in 50nm, the surface resistance of FTO conducting glass substrate is: 7ohm/ (7ohm/sq).Described electrode is bus, conducting film or conducting resinl.The power supply be applied on electrode is 24V.Direction of current 7 as shown by arrows.
The preparation method of the present embodiment electro heat automobile wind shield glass, comprises the following steps:
Step 1: cut (by trapezoidal cutting to FTO conduction (surface resistance 7ohm/sq) glass substrate 1, be of a size of upper and lower two the parallel lines length of glass and be respectively 1100mm, 1200mm, two parallel live widths are 800mm), break limit, edging, boring, washing, surface dirt, greasy dirt, impurity etc. are cleaned up, glass substrate after washing is dried, and notices that the glass substrate after drying directly can not be touched with hand.
Step 2: trapezoidal glass substrate upper base and go to the bottom on (two limits be parallel to each other), print the wide conduction silver bar 4 of 10mm respectively, namely form positive pole 5, negative pole 6;
Step 3: the above-mentioned plane FTO conducting glass substrate level handled well is placed on mould, deliver to heating furnace heating, when glass temperature reaches about 600 DEG C, with vacuum cup, glass is picked up, then decontrol glass and do free fall, be labelled to mould because Action of Gravity Field is sagging and be shaped, after keeping 15min, be sent to rapidly cooling air grid region, with bull nozzle, high pressure cold air blowed to the two sides of glass, chilling tempering, directly obtains the curved glass of desirable strength and curvature.Chilling blast is 0.5-1KPa, and the distance between air grid and glass is 35-45mm, chilling period 80-100s.
Step 4: respectively the conduction silver bar 2 of positive pole 5, negative pole 6 is connected with 24V power supply by wire, thus make electric current by FTO conducting film and heated glass window, power density can reach about 102W/m
2.
Embodiment 3
Present embodiment discloses a kind of electro heat automobile wind shield glass, as shown in Figure 3, is one deck FTO conducting glass substrate, and the edge of described FTO electro-conductive glass base the right and left prints or is pasted with electrode, described electrode is connected with power sourced electric.Described FTO conducting glass substrate is the float-glass substrate depositing FTO conducting film.FTO is the transparency conducting layer of doped sno_2 fluorine.Described FTO conducting glass substrate thickness is: 10mm, the thickness of described FTO conducting film for: described in 100nm, the surface resistance of FTO conducting glass substrate is: 7ohm/ (7ohm/sq).Described electrode is bus, conducting film or conducting resinl.The power supply be applied on electrode is 24V.Direction of current 7 as shown by arrows.
The preparation method of the present embodiment electro heat automobile wind shield glass, comprises the following steps:
Step 1: cut (by trapezoidal cutting to FTO conduction (surface resistance 7ohm/sq) glass substrate 1, be of a size of upper and lower two the parallel lines length of glass and be respectively 1100mm, 1200mm, two parallel live widths are 800mm), break limit, edging, boring, washing, surface dirt, greasy dirt, impurity etc. are cleaned up, glass substrate after washing is dried, and notices that the glass substrate after drying directly can not be touched with hand;
Step 2: the above-mentioned plane FTO conducting glass substrate level handled well is placed on mould, deliver to heating furnace heating, when glass temperature reaches about 650 DEG C, with vacuum cup, glass is picked up, then decontrol glass and do free fall, be labelled to mould because Action of Gravity Field is sagging and be shaped, after keeping 6min, be sent to rapidly cooling air grid region, with bull nozzle, high pressure cold air blowed to the two sides of glass, chilling tempering, directly obtains the curved glass of desirable strength and curvature.Chilling blast is 0.2-0.3KPa, and the distance between air grid and glass is 50-60mm, chilling period 180-200s.
Step 3: at the oblique opposite side (two limits that irrelevancy is capable) of trapezoidal glass substrate, uses conducting resinl to paste the wide conductive copper bar of 15mm 8 respectively, namely forms positive pole 5, negative pole 6;
Step 4: respectively the conductive copper bar 8 of positive pole 5, negative pole 6 is connected with 24V power supply by wire, thus make electric current by FTO conducting film and heated glass window, power density can reach about 70W/m
2.
Embodiment 4
Present embodiment discloses a kind of electro heat automobile wind shield glass, as shown in Figure 4, is one deck FTO conducting glass substrate, and the edge on the upper and lower both sides of described FTO electro-conductive glass base prints or is pasted with electrode, described electrode is connected with power sourced electric.Described FTO conducting glass substrate is the borosilicate glass substrate depositing FTO conducting film.FTO is the transparency conducting layer of doped sno_2 fluorine.Described FTO conducting glass substrate thickness is: 15mm, the thickness of described FTO conducting film for: described in 500nm, the surface resistance of FTO conducting glass substrate is: 7ohm/ (7ohm/sq).Described electrode is bus, conducting film or conducting resinl.The power supply be applied on electrode is 36V.Direction of current 7 as shown by arrows.
The preparation method of the present embodiment electro heat automobile wind shield glass, comprises the following steps:
Step 1: cut (by trapezoidal cutting to FTO conduction (surface resistance 7ohm/sq) glass substrate 1, be of a size of upper and lower two the parallel lines length of glass and be respectively 1100mm, 1200mm, two parallel live widths are 800mm), break limit, edging, boring, washing, surface dirt, greasy dirt, impurity etc. are cleaned up, glass substrate after washing is dried, and notices that the glass substrate after drying directly can not be touched with hand;
Step 2: the above-mentioned plane FTO conducting glass substrate level handled well is placed on mould, deliver to heating furnace heating, when glass temperature reaches about 650 DEG C, with vacuum cup, glass is picked up, then decontrol glass and do free fall, be labelled to mould because Action of Gravity Field is sagging and be shaped, after keeping 6min, be sent to rapidly cooling air grid region, with bull nozzle, high pressure cold air blowed to the two sides of glass, chilling tempering, directly obtains the curved glass of desirable strength and curvature.During thickness of glass 19mm, chilling blast is 0.05-0.1KPa, and the distance between air grid and glass is 70-80mm, chilling period 350-400s.
Step 3: trapezoidal glass substrate upper base and go to the bottom on (two limits be parallel to each other), print the wide conductive copper bar 8 of 15mm respectively, namely form positive pole 5, negative pole 6;
Step 4: respectively the conductive copper bar 8 of positive pole 5, negative pole 6 is connected with 36V power supply by wire, thus make electric current by FTO conducting film and heated glass window, power density can reach about 230W/m2.
Embodiment 5
Present embodiment discloses a kind of electro heat automobile wind shield glass, structure as shown in Figure 5 and Figure 6, for including the pairglass of doubling layer 3 (PVB polyvinyl butyral), described pairglass comprises one deck FTO conducting glass substrate 1 and one deck common glass substrates 2, two edges that described FTO conducting glass substrate is relative print or is pasted with electrode, described electrode is connected with power sourced electric.The setting of electrode is the positive and negative electrode for applying heating power supply.Be appreciated that curved surface and the shape that can be processed into various automotive needs according to this electro heat automobile wind shield glass.Direction of current 7 as shown by arrows.
Described FTO conducting glass substrate is the borosilicate glass substrate depositing FTO conducting film.FTO is the transparency conducting layer of doped sno_2 fluorine.Described FTO conducting glass substrate thickness is: 2mm.The thickness of described FTO conducting film 12 is: 50nm.Simple glass thickness is 2mm.The surface resistance of described FTO conducting glass substrate is: 7ohm/.Described electrode is conduction silver bar.The power supply be applied on electrode is 36V power supply.
The preparation method of the present embodiment electro heat automobile wind shield glass, comprises the following steps:
Step 1: cut (by trapezoidal cutting to the FTO conducting glass substrate 1 (surface resistance 7ohm/) that thickness is 2mm, be of a size of upper and lower two the parallel lines length of glass and be respectively 1100mm, 1200mm, two parallel live widths are 800mm), break limit, edging, boring, washing, surface dirt, greasy dirt, impurity etc. are cleaned up, glass substrate after washing is dried, and notices that the glass substrate after drying directly can not be touched with hand.
Step 2: at the oblique opposite side (two limits that irrelevancy is capable) of trapezoidal glass substrate conducting surface, prints the wide conduction silver bar 4 of 10mm respectively, namely forms positive pole 5, negative pole 6.
Step 3: be placed on mould by above-mentioned FTO conducting glass substrate 1 level handled well, delivers to heating furnace heating; When glass temperature reaches about 620 DEG C, glass is labelled to mould because Action of Gravity Field is sagging and is shaped, and after keeping 10min, lower the temperature at a slow speed, cooling rate is 20 degree/min, directly obtains the curved glass of desired curvature.
Step 4: by the common glass substrates 2 of the thickness 2mm of same size after the process identical with step 3 with step 1, obtain the common glass substrates of desired curvature.Unlike, the position that common glass substrates 2 corresponds to Ag bar one end of glass substrate 1 needs to hole in advance, and aperture is 8mm.
Step 5: at FTO conducting glass substrate 1 and the middle placing clamp glued membrane of glass substrate 2, after good position, carry out doubling as in doubling stove.
Step 6: by aperture reserved in common glass substrates 2, respectively by positive pole: 5, the conduction silver bar 4 of negative pole 6 is connected with 36V power supply by wire, thus make electric current by FTO conducting film and heated glass window, power density can reach about 230W/m
2.
Embodiment 6
Present embodiment discloses a kind of electro heat automobile wind shield glass, structure as shown in Figure 7 and Figure 8, for including the pairglass of doubling layer 3 (PVB polyvinyl butyral), described pairglass comprises one deck FTO conducting glass substrate 1 and one deck common glass substrates 2, two edges that described FTO conducting glass substrate is relative print or is pasted with electrode, described electrode is connected with power sourced electric.The setting of electrode is the positive and negative electrode for applying heating power supply.Be appreciated that curved surface and the shape that can be processed into various automotive needs according to this electro heat automobile wind shield glass.Direction of current 7 as shown by arrows.
Described FTO conducting glass substrate is the float-glass substrate depositing FTO conducting film.FTO is the transparency conducting layer of doped sno_2 fluorine.Described electrode is conduction silver bar.Described FTO conducting glass substrate thickness is: 3mm.The thickness of described FTO conducting film 12 is: 100nm.Described simple glass thickness is 3mm.The surface resistance of described FTO conducting glass substrate is: 10ohm/.The power supply be applied on electrode is 36V.
The preparation method of the present embodiment electro heat automobile wind shield glass, comprise the following steps: step 1: cut (by trapezoidal cutting to the FTO conducting glass substrate 1 (surface resistance 10ohm/) that thickness is 3mm, be of a size of upper and lower two the parallel lines length of glass and be respectively 1100mm, 1200mm, two parallel live widths are 800mm), break limit, edging, boring, washing, surface dirt, greasy dirt, impurity etc. are cleaned up, glass substrate after washing is dried, and notices that the glass substrate after drying directly can not be touched with hand.
Step 2: trapezoidal glass substrate conducting surface upper base and go to the bottom on (two limits be parallel to each other), print the wide conduction silver bar 4 of 10mm respectively, namely form positive pole 5, negative pole 6;
Step 3: by the common glass substrates 2 of the thickness 3mm of same size through the process identical with step 1, unlike, the position that common glass substrates 2 corresponds to Ag bar one end of glass substrate 1 needs to hole in advance, and aperture is 8mm.
Step 4: the above-mentioned FTO conducting glass substrate 1 handled well and common glass substrates 2 are alignd, level is placed on mould together, delivers to heating furnace heating; When glass temperature reaches about 600 DEG C, glass is labelled to mould because Action of Gravity Field is sagging and is shaped, and after keeping 20min, lower the temperature at a slow speed, cooling rate is 30 degree/min, directly obtains the identical two panels curved glass of curvature.
Step 5: at FTO conducting glass substrate 1 and the middle placing clamp glued membrane of glass substrate 2, after good position, carry out doubling as in doubling stove.
Step 6: by aperture reserved in common glass substrates 2, be connected with 36V power supply by wire by the conduction silver bar 4 of positive pole 5, negative pole 6 respectively, thus make electric current by FTO conducting film and heated glass window, power density can reach about 160W/m
2.
Embodiment 7
Present embodiment discloses a kind of electro heat automobile wind shield glass, structure as shown in Figure 9, for including the pairglass of doubling layer 3 (PVB polyvinyl butyral), described pairglass comprises one deck FTO conducting glass substrate 1 and one deck common glass substrates 2, two edges that described FTO conducting glass substrate is relative print or is pasted with electrode, described electrode is connected with power sourced electric.The setting of electrode is the positive and negative electrode for applying heating power supply.Be appreciated that curved surface and the shape that can be processed into various automotive needs according to this electro heat automobile wind shield glass.Direction of current 7 as shown by arrows.
Described FTO conducting glass substrate is the float-glass substrate depositing FTO conducting film.FTO is the transparency conducting layer of doped sno_2 fluorine.Described electrode is conductive copper bar.Described FTO conducting glass substrate thickness is: 5mm.The thickness of described FTO conducting film 12 is: 200nm.Other thickness of glass described are 5mm.The surface resistance of described FTO conducting glass substrate is: 25ohm/.Described electrode is bus, conducting film or conducting resinl.The power supply be applied on electrode is 24V.
The preparation method of the present embodiment electro heat automobile wind shield glass, comprises the following steps:
Step 1: cut (by trapezoidal cutting to the FTO conducting glass substrate 1 (surface resistance 7ohm/) of thickness 5mm, be of a size of upper and lower two the parallel lines length of glass and be respectively 1100mm, 1200mm, two parallel live widths are 800mm), break limit, edging, boring, washing, surface dirt, greasy dirt, impurity etc. are cleaned up, glass substrate after washing is dried, and notices that the glass substrate after drying directly can not be touched with hand;
Step 2: above-mentioned FTO conducting glass substrate 1 level handled well is placed on mould, deliver to heating furnace heating, when glass temperature reaches about 600 DEG C, glass is labelled to mould because Action of Gravity Field is sagging and is shaped, after keeping 6min, lower the temperature at a slow speed, cooling rate is 30 degree/min, directly obtains the curved glass of desired curvature.
Step 3: at the oblique opposite side (two limits that irrelevancy is capable) of trapezoidal glass substrate, uses conducting resinl to paste the wide conductive copper bar of 15mm 8 respectively, namely forms positive pole 5, negative pole 6;
Step 4: by the common glass substrates 2 of the thickness 2mm of same size after the process identical with step 2 with step 1, obtain the common glass substrates 2 of desired curvature.Unlike, the position that common glass substrates 2 corresponds to conductive copper bar one end of glass substrate 1 needs to hole in advance, and aperture is 8mm.
Step 5: at FTO conducting glass substrate 1 and the middle placing clamp glued membrane of glass substrate 2, after good position, carry out doubling as in doubling stove.
Step 6: by aperture reserved in common glass substrates 2, be connected with 110V power supply by wire by the conductive copper bar 8 of positive pole 5, negative pole 6 respectively, thus make electric current by FTO conducting film and heated glass window, power density can reach about 440W/m
2.
The present invention is not limited to the electro heat automobile wind shield glass described in above-described embodiment, and the change of the change of the wherein change of FTO conducting glass substrate shape thicknesses, electrode material size, the change of power line voltage, hot bending and tempering treatment conditions, the change of doubling processing method are all within protection scope of the present invention.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an electro heat automobile wind shield glass, is characterized in that, comprises at least one deck FTO conducting glass substrate, and two edges that described FTO conducting glass substrate is relative print or is pasted with electrode, described electrode is connected with power sourced electric.
2. electro heat automobile wind shield glass according to claim 1, it is characterized in that, described electro heat automobile wind shield glass is the pairglass including PVB layer, described pairglass comprises at least one deck FTO conducting glass substrate, two edges that described FTO conducting glass substrate is relative print or is pasted with electrode, described electrode is connected with power sourced electric.
3. electro heat automobile wind shield glass according to claim 1 or 2, it is characterized in that, described FTO conducting glass substrate is the float-glass substrate or the borosilicate glass substrate that deposit FTO conducting film, and FTO conducting film is the transparency conducting layer of doped sno_2 fluorine.
4. electro heat automobile wind shield glass according to claim 1 or 2, is characterized in that, described FTO electro-conductive glass is non-tempering or tempering.
5. electro heat automobile wind shield glass according to claim 1 or 2, is characterized in that, described FTO conducting glass substrate thickness is: 1mm ~ 20mm.
6. electro heat automobile wind shield glass according to claim 1 or 2, is characterized in that, the thickness of described FTO conducting film is: 50nm ~ 1000nm.
7. electro heat automobile wind shield glass according to claim 1 or 2, is characterized in that, the surface resistance of described FTO conducting glass substrate is: 3ohm/ ~ 100ohm/.
8. electro heat automobile wind shield glass according to claim 1 or 2, is characterized in that, described electrode is bus, conducting film or conducting resinl.
9. electro heat automobile wind shield glass according to claim 1 or 2, is characterized in that, described power supply is 5 ~ 220V power supply.
10. electro heat automobile wind shield glass according to claim 1 or 2, is characterized in that, the light transmittance of described electro heat automobile wind shield glass is 10% ~ 100%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014100063424 | 2014-01-07 | ||
| CN201410006342.4A CN103802639A (en) | 2014-01-07 | 2014-01-07 | Automobile electric heating glass window and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
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| CN104401207A true CN104401207A (en) | 2015-03-11 |
| CN104401207B CN104401207B (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410006342.4A Pending CN103802639A (en) | 2014-01-07 | 2014-01-07 | Automobile electric heating glass window and manufacturing method |
| CN201410649122.3A Expired - Fee Related CN104401207B (en) | 2014-01-07 | 2014-11-14 | Electrical heating automobile wind shield glass |
| CN201420683924.1U Expired - Fee Related CN204222593U (en) | 2014-01-07 | 2014-11-14 | Electro heat automobile wind shield glass |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410006342.4A Pending CN103802639A (en) | 2014-01-07 | 2014-01-07 | Automobile electric heating glass window and manufacturing method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420683924.1U Expired - Fee Related CN204222593U (en) | 2014-01-07 | 2014-11-14 | Electro heat automobile wind shield glass |
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| CN (3) | CN103802639A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739988A (en) * | 2017-01-20 | 2017-05-31 | 大连七色光太阳能科技开发有限公司 | Electrical heating vehicular windscreens glass |
| CN107020925A (en) * | 2017-03-23 | 2017-08-08 | 合肥协耀玻璃制品有限公司 | A kind of rear windscreen of car glass |
| CN109159508A (en) * | 2018-09-10 | 2019-01-08 | 天津大学 | A kind of front windshield of vehicle |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802639A (en) * | 2014-01-07 | 2014-05-21 | 大连七色光太阳能科技开发有限公司 | Automobile electric heating glass window and manufacturing method |
| CN106642938A (en) * | 2016-12-12 | 2017-05-10 | 常熟市发德玻璃有限公司 | Defrosting glass for display freezer and production method of defrosting glass |
| CN107539280B (en) * | 2017-02-06 | 2020-08-04 | 福耀集团长春有限公司 | Rear windshield glass with covered bus and processing technology thereof |
| CN107546316B (en) * | 2017-08-22 | 2020-03-13 | 丁文兰 | Preparation method of toughened transparent conductive glass substrate and intelligent building glass |
| US11229091B2 (en) * | 2018-05-30 | 2022-01-18 | Betterfrost Technologies, Inc. | Continuous resistance and proximity checking for high power deicing and defogging systems |
| CN109375456A (en) * | 2018-11-22 | 2019-02-22 | 深圳市同为数码科技股份有限公司 | A kind of demisting component and its picture pick-up device and defogging method |
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- 2014-01-07 CN CN201410006342.4A patent/CN103802639A/en active Pending
- 2014-11-14 CN CN201410649122.3A patent/CN104401207B/en not_active Expired - Fee Related
- 2014-11-14 CN CN201420683924.1U patent/CN204222593U/en not_active Expired - Fee Related
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| KR100918131B1 (en) * | 2001-12-11 | 2009-09-17 | 쌩-고벵 글래스 프랑스 | Heated pane with an electrically conductive surface coating |
| CN202480838U (en) * | 2012-03-08 | 2012-10-10 | 泉州市博泰半导体科技有限公司 | Transparent solar automobile skylight |
| CN203151777U (en) * | 2012-08-24 | 2013-08-21 | 法国圣戈班玻璃公司 | Glass, laminated glass and automobile |
| CN102826763A (en) * | 2012-09-25 | 2012-12-19 | 上海北玻玻璃技术工业有限公司 | Method for producing transparent conducting oxide (TCO) coated glass |
| CN204222593U (en) * | 2014-01-07 | 2015-03-25 | 大连七色光太阳能科技开发有限公司 | Electro heat automobile wind shield glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106739988A (en) * | 2017-01-20 | 2017-05-31 | 大连七色光太阳能科技开发有限公司 | Electrical heating vehicular windscreens glass |
| CN107020925A (en) * | 2017-03-23 | 2017-08-08 | 合肥协耀玻璃制品有限公司 | A kind of rear windscreen of car glass |
| CN109159508A (en) * | 2018-09-10 | 2019-01-08 | 天津大学 | A kind of front windshield of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104401207B (en) | 2016-11-30 |
| CN103802639A (en) | 2014-05-21 |
| CN204222593U (en) | 2015-03-25 |
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