CN211702417U - Automobile coated glass with uncoated communication window and capable of being uniformly heated - Google Patents
Automobile coated glass with uncoated communication window and capable of being uniformly heated Download PDFInfo
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- CN211702417U CN211702417U CN201921860793.9U CN201921860793U CN211702417U CN 211702417 U CN211702417 U CN 211702417U CN 201921860793 U CN201921860793 U CN 201921860793U CN 211702417 U CN211702417 U CN 211702417U
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Abstract
The utility model provides a uniformly-heated automobile coated glass with a coating-free communication window, which comprises a first separator and a second separator, wherein the first separator is positioned outside the coating-free communication window, and the second separator is positioned outside the first separator; the first separator comprises a plurality of film-free belts, and the second separator comprises a plurality of film-free belts. Automobile coated glass who has uncoated communication window but even heating through the setting of first separator and second separator, make the communication window heat more evenly all around, the dispersion with reduce the focus, reach the effect of the peripheral even heating of uncoated communication window.
Description
Technical Field
The utility model belongs to the coated heating glass field especially relates to an automobile coated glass who can evenly heat with no coating communication window.
Background
There are many companies currently conducting research on electrically heated coated laminated glass and it is known in the art that automotive windshields are laminated using a single sheet of glazing bonded to another sheet of glazing by a transparent plastic such as polyvinyl butyral (PVB), with a conductive film layer provided on one of the sheets of glass. The conductive film layer is connected to at least one conductive tape, which is usually made by printing a tin-containing conductive silver solution and then firing, and is hereinafter referred to as a "bus bar". Sometimes, a metal foil tape containing aluminum, copper and the like is arranged on the bus to achieve the effect of reducing the resistance, so that the loss of voltage at the position is avoided. The bus bar is connected with the anode and the cathode of the power supply, so that the film layer is uniformly heated.
However, the automobile glass may be added with the vehicle-mounted electronic devices such as the rain sensor and the light sensing element according to the needs of users, but the coated front windshield may have a shielding effect to a certain extent, so that a film-free area needs to be reserved at a corresponding position where the electronic device is additionally installed on the front windshield, the areas are generally referred to as communication windows, the communication windows are generally arranged in the vehicle and covered by ink, but a small ink-free area is generally reserved at the covered position so as to avoid affecting the normal operation of the vehicle-mounted electronic devices such as the rain sensor and the light sensing element.
However, these communication windows are disadvantageous for electrically heating the coated glass, and there is no film layer in the communication window area, so that for the heating of the entire film layer by electrifying, there will be an insulating area where current cannot pass, and a phenomenon of blocking current flow, so that the current passing through the upper and lower areas of the communication window is relatively less, or even no current passes through, while the current passing through the two sides of the communication window is relatively more, resulting in uneven current distribution around the area, thereby causing uneven heating degree, i.e. no heat up and down, and overheating left and right, resulting in so-called "hot spots" and "cold spots". This is undesirable for electrically heated coated products.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a but automobile coated glass of even heating with no coating communication window makes communication window heat all around more evenly, and dispersion and reduction focus reach the effect of the peripheral even heating of no coating communication window.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the uniformly-heatable coated glass with the uncoated communication window for the automobile comprises a first separator and a second separator, wherein the first separator is positioned on the outer side of the uncoated communication window, and the second separator is positioned on the outer side of the first separator;
the first separator comprises a plurality of film-free belts, and the second separator comprises a plurality of film-free belts.
Further, the distance between the outermost film-free belt of the first separator and the innermost film-free belt of the second separator is 0.5-10 mm; the distance between the outermost film-free strip of the first separator and the extension of the uncoated communication window is 0-5 mm.
Further, the width of the film-free belt is 0.01-1 mm; the distance between adjacent film-free belts is 0.5-10 mm; the height of the film-free belt is higher than that of the uncoated communication window, and the difference between the height of the film-free belt and the height of the uncoated communication window is 1-10 mm.
Furthermore, the second separator comprises a first separating part and a second separating part, and the first separating part and the second separating part are respectively positioned on two sides of the first separator and arranged in a mirror image manner; the film-free belts of the second separating body are arranged at equal intervals; the distance between the film-free strips of the second separating body is gradually increased from the side adjacent to the first separating body to the extension side of the second separating body; the sum of the widths of the first and second segments is greater than the width of the uncoated communication window.
Furthermore, the automobile coated glass also comprises 2 glass substrates, an adhesive layer, a transparent conductive film, an upper bus and a lower bus, wherein the adhesive layer is positioned between the glass substrates, the transparent conductive film is positioned on one side of the adhesive layer, the upper bus and the lower bus are respectively connected with the transparent conductive film, and the upper bus and the lower bus are respectively positioned on two sides of the uncoated communication window. The first separator, the second separator, and the uncoated communication window are all located on the transparent conductive film.
Further, the transparent conductive film is one of an off-line Low-E film or an on-line Low-E film; the material of the off-line Low-E film is at least one of metal, metal oxide or metal nitride; the metal is at least one of gold, silver, copper or aluminum, the metal oxide is at least one of silicon oxide, silicon-aluminum oxide, zinc-aluminum oxide, zinc-tin oxide, titanium oxide, zirconium oxide, niobium oxide or nickel oxide, and the metal nitride is at least one of silicon nitride, silicon-aluminum nitride, titanium nitride or carbon nitride. The off-line Low-E film needs to remove the metal film layer, and the rest substrate layer can be reserved or partially reserved; for on-line transparent conductive films, more than two thirds of the total thickness of the film layer needs to be removed.
The preparation method of the film-free belt is one of a mechanical film removing method, a laser film removing method or a screen printing film removing method; preferably, the preparation method of the film-free belt is a laser film removing method.
Furthermore, the upper bus is made of at least one of silver paste, copper foil with conductive adhesive or aluminum foil; the lower bus is made of at least one of silver paste, copper foil with conductive adhesive or aluminum foil.
Further, the distance between the two ends of the upper bus and the lower bus is larger than the distance between the adjacent positions of the upper bus, the lower bus and the uncoated communication window.
Further, the shape of the film-free belt is one of a straight line shape, a curve shape, a sawtooth shape or a rectangular wire frame.
Compared with the prior art, the automobile coated glass with the uncoated communication window and capable of being uniformly heated has the following advantages:
(1) automobile coated glass who has uncoated communication window but even heating through the setting of first separator and second separator, make the communication window heat more evenly all around, the dispersion with reduce the focus, reach the effect of the peripheral even heating of uncoated communication window.
(2) Automobile coated glass who has uncoated communication window but even heating by the adoption with the interval between the no membrane area of second separator by the mode that increases gradually with the epitaxial side of one side adjacent with first separator to second separator, with current density progressively disperse, not only eliminated "hot spot", reduced the temperature difference of relevant region around the uncoated moreover, make the heating effect more even.
(3) Automobile coated glass who can evenly heat with no coating communication window distance between through setting up the both ends of last generating line and lower generating line is greater than last generating line, lower generating line and the distance between the no coating communication window adjacent position, the purpose is in order to make the electric current more even, thermal equilibrium has been guaranteed to the bigger degree.
(4) The automobile coated glass with the uncoated communication window and capable of being uniformly heated is characterized in that the film-free belt is realized by laser etching, and is not easy to be found by people, so that the product is more attractive.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic view of a uniformly heatable coated glass for an automobile provided with an uncoated communication window according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a uniformly heatable coated glass for an automobile having an uncoated communication window according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of a uniformly heatable coated glass for an automobile provided with an uncoated communication window according to embodiment 3 of the present invention;
FIG. 4 is a schematic view of a uniformly heatable coated glass for an automobile having an uncoated communication window according to embodiment 4 of the present invention;
FIG. 5 is a schematic view of an automobile coated glass according to comparative example 1 of the present invention;
fig. 6 is a side view of a uniformly heatable coated glass for an automobile with an uncoated communication window according to an embodiment of the present invention.
Description of reference numerals:
1-a first separator; 2-a second separator; 3-uncoated communication windows; 4-a transparent conductive film; 5-a glass substrate; 6-upper bus; 7-lower bus.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
As shown in FIG. 1, a uniformly heatable coated glass for an automobile with an uncoated communication window 3 comprises a first separator 1 and a second separator 2, wherein the first separator 1 is positioned at the outer side of the uncoated communication window 3, and the second separator 2 is positioned at the outer side of the first separator 1; the first separator 1 includes 2 film-free tapes, and the second separator 2 includes 10 film-free tapes.
The distance between the outermost film-free belt of the first separator 1 and the innermost film-free belt of the second separator 2 is 5 mm; the film-free strip of the first separator 1 is attached to the extension of the uncoated communication window 3.
The width of the film-free belt is 0.07 mm; the interval between adjacent film-free tapes of the second separator 2 was 5 mm; the height of the film-free belt is higher than that of the uncoated communication window 3, and the difference between the height of the film-free belt and the height of the uncoated communication window 3 is 8 mm.
The second separator 2 comprises a first separating part and a second separating part, and the first separating part and the second separating part are respectively positioned at two sides of the first separator 1 and arranged in a mirror image manner; the spacing between the filmless strips of the second separator 2 is the same, the sum of the widths of the first and second separators is 50mm, and the width of the uncoated communication window 3 is 40 mm.
The automobile coated glass further comprises 2 glass substrates, a bonding layer, a transparent conductive film 4, an upper bus 6 and a lower bus 7, wherein the bonding layer is positioned between the glass substrates, the transparent conductive film 4 is positioned on one side of the bonding layer, the upper bus 6 and the lower bus 7 are respectively connected with the transparent conductive film 4, and the upper bus 6 and the lower bus 7 are respectively positioned on two sides of the uncoated communication window 3.
The transparent conductive film 4 is an off-line Low-E film, and the off-line Low-E film is made of silver, silicon oxide, silicon aluminum oxide, zinc aluminum oxide, zirconium oxide, nickel oxide, silicon nitride and silicon aluminum nitride.
The preparation method of the film-free belt is a laser film removing method. The core laser is a pumping green laser. The shape of the film-free belt is linear.
The upper bus 6 is made of silver paste and copper foil with conductive adhesive. The distance between the two ends of the upper bus 6 and the lower bus 7 is 78cm, the distance between the adjacent positions of the upper bus 6 and the lower bus 7 and the uncoated communication window 3 is 75cm, and other positions are in smooth transition.
Example 2
As shown in fig. 2, a uniformly heatable coated glass for an automobile with an uncoated communication window 3 comprises a first separator 1 and a second separator 2, wherein the first separator 1 is positioned outside the uncoated communication window 3, and the second separator 2 is positioned outside the first separator 1; the first separator 1 includes 2 film-free tapes, and the second separator 2 includes 10 film-free tapes.
The distance between the outermost film-free belt of the first separator 1 and the innermost film-free belt of the second separator 2 is 5 mm; the distance between the film-free strip of the first separator 1 and the extension of the uncoated communication window 3 is 5 mm.
The width of the film-free belt is 0.07 mm; the interval between adjacent film-free tapes of the second separator 2 was 5 mm; the height of the film-free belt is higher than that of the uncoated communication window 3, and the difference between the height of the film-free belt and the height of the uncoated communication window 3 is 8 mm.
The second separator 2 comprises a first separating part and a second separating part, and the first separating part and the second separating part are respectively positioned at two sides of the first separator 1 and arranged in a mirror image manner; the spacing between the filmless strips of the second separator 2 is the same, the sum of the widths of the first and second separators is 50mm, and the width of the uncoated communication window 3 is 40 mm.
The automobile coated glass further comprises 2 glass substrates, a bonding layer, a transparent conductive film 4, an upper bus 6 and a lower bus 7, wherein the bonding layer is positioned between the glass substrates, the transparent conductive film 4 is positioned on one side of the bonding layer, the upper bus 6 and the lower bus 7 are respectively connected with the transparent conductive film 4, and the upper bus 6 and the lower bus 7 are respectively positioned on two sides of the uncoated communication window 3.
The transparent conductive film 4 is an off-line Low-E film, and the off-line Low-E film is made of silver, silicon oxide, silicon aluminum oxide, zinc aluminum oxide, zirconium oxide, nickel oxide, silicon nitride and silicon aluminum nitride.
The preparation method of the film-free belt is a laser film removing method. The core laser is a pumping green laser. The shape of the film-free belt is linear.
The upper bus 6 is made of silver paste and copper foil with conductive adhesive. The distance between the two ends of the upper bus 6 and the lower bus 7 is 78cm, the distance between the adjacent positions of the upper bus 6 and the lower bus 7 and the uncoated communication window 3 is 75cm, and other positions are in smooth transition.
Example 3
As shown in fig. 3, a uniformly heatable coated glass for an automobile with an uncoated communication window 3 comprises a first separator 1 and a second separator 2, wherein the first separator 1 is positioned outside the uncoated communication window 3, and the second separator 2 is positioned outside the first separator 1; the first separator 1 comprises 9 film-free tapes, and the second separator 2 comprises 10 film-free tapes.
The distance between the outermost film-free belt of the first separator 1 and the innermost film-free belt of the second separator 2 is 5 mm; the distance between the outermost non-film strip of the first separator 1 and the extension of the uncoated communication window 3 is 5 mm.
The width of the film-free belt is 0.07 mm; the distance between the film-free strips of the first separator 1 was 6mm, and the spacing between adjacent film-free strips of the second separator 2 was 5 mm; the height of the film-free belt is higher than that of the uncoated communication window 3, and the difference between the height of the film-free belt and the height of the uncoated communication window 3 is 8 mm.
The second separator 2 comprises a first separating part and a second separating part, and the first separating part and the second separating part are respectively positioned at two sides of the first separator 1 and arranged in a mirror image manner; the spacing between the filmless strips of the second separator 2 is the same, the sum of the widths of the first and second separators is 50mm, and the width of the uncoated communication window 3 is 40 mm.
The automobile coated glass further comprises 2 glass substrates, a bonding layer, a transparent conductive film 4, an upper bus 6 and a lower bus 7, wherein the bonding layer is positioned between the glass substrates, the transparent conductive film 4 is positioned on one side of the bonding layer, the upper bus 6 and the lower bus 7 are respectively connected with the transparent conductive film 4, and the upper bus 6 and the lower bus 7 are respectively positioned on two sides of the uncoated communication window 3.
The transparent conductive film 4 is an off-line Low-E film, and the off-line Low-E film is made of silver, silicon oxide, silicon aluminum oxide, zinc aluminum oxide, zirconium oxide, nickel oxide, silicon nitride and silicon aluminum nitride.
The preparation method of the film-free belt is a laser film removing method. The core laser is a pumping green laser. The shape of the film-free belt is linear.
The upper bus 6 is made of silver paste and copper foil with conductive adhesive. The distance between the two ends of the upper bus 6 and the lower bus 7 is 78cm, the distance between the adjacent positions of the upper bus 6 and the lower bus 7 and the uncoated communication window 3 is 75cm, and other positions are in smooth transition.
Example 4
As shown in fig. 4, a uniformly heatable coated glass for an automobile with an uncoated communication window 3 comprises a first separator 1 and a second separator 2, wherein the first separator 1 is positioned outside the uncoated communication window 3, and the second separator 2 is positioned outside the first separator 1; the first separator 1 includes 2 film-free tapes, and the second separator 2 includes 10 film-free tapes.
The distance between the outermost film-free belt of the first separator 1 and the innermost film-free belt of the second separator 2 is 5 mm; the outermost film-free band of the first separator 1 is attached to the extension of the uncoated communication window 3.
The width of the film-free belt is 0.07 mm; the distance between adjacent film-free belts of the second separator 2 from the inside to the outside is uniformly increased from 5mm to 9 mm; the height of the film-free belt is higher than that of the uncoated communication window 3, and the difference between the height of the film-free belt and the height of the uncoated communication window 3 is 8 mm.
The second separator 2 comprises a first separating part and a second separating part, and the first separating part and the second separating part are respectively positioned at two sides of the first separator 1 and arranged in a mirror image manner; the spacing between the filmless strips of the second separator 2 is the same, the sum of the widths of the first and second separators is 50mm, and the width of the uncoated communication window 3 is 40 mm.
The automobile coated glass further comprises 2 glass substrates, a bonding layer, a transparent conductive film 4, an upper bus 6 and a lower bus 7, wherein the bonding layer is positioned between the glass substrates, the transparent conductive film 4 is positioned on one side of the bonding layer, the upper bus 6 and the lower bus 7 are respectively connected with the transparent conductive film 4, and the upper bus 6 and the lower bus 7 are respectively positioned on two sides of the uncoated communication window 3.
The transparent conductive film 4 is an off-line Low-E film, and the off-line Low-E film is made of silver, silicon oxide, silicon aluminum oxide, zinc aluminum oxide, zirconium oxide, nickel oxide, silicon nitride and silicon aluminum nitride.
The preparation method of the film-free belt is a laser film removing method. The core laser is a pumping green laser. The shape of the film-free belt is linear.
The upper bus 6 is made of silver paste and copper foil with conductive adhesive. The distance between the two ends of the upper bus 6 and the lower bus 7 is 78cm, the distance between the adjacent positions of the upper bus 6 and the lower bus 7 and the uncoated communication window 3 is 75cm, and other positions are in smooth transition.
Comparative example 1
As shown in FIG. 5, an automobile coated glass comprises a non-coated communication window 3 with a width of 40 mm.
The automobile coated glass further comprises 2 glass substrates, a bonding layer, a transparent conductive film 4, an upper bus 6 and a lower bus 7, wherein the bonding layer is positioned between the glass substrates, the transparent conductive film 4 is positioned on one side of the bonding layer, the upper bus 6 and the lower bus 7 are respectively connected with the transparent conductive film 4, and the upper bus 6 and the lower bus 7 are respectively positioned on two sides of the uncoated communication window 3.
The transparent conductive film 4 is an off-line Low-E film, and the off-line Low-E film is made of silver, silicon oxide, silicon aluminum oxide, zinc aluminum oxide, zirconium oxide, nickel oxide, silicon nitride and silicon aluminum nitride.
The upper bus 6 is made of silver paste and copper foil with conductive adhesive. The distance between the two ends of the upper bus 6 and the lower bus 7 is 78cm, and the two ends are arranged in parallel.
The maximum temperature and the minimum temperature of the same area of the automobile coated glass of the examples 1 to 4 and the automobile coated glass of the comparative example 1 are respectively obtained by a thermal imager, and are detailed in table 1.
TABLE 1 temperature results
| Maximum temperature (. degree. C.) | Minimum temperature (. degree.C.) | Temperature difference (. degree.C.) | |
| Example 1 | 45.3 | 34.3 | 11.0 |
| Example 2 | 52.6 | 48.0 | 4.6 |
| Example 3 | 46.3 | 44.6 | 1.7 |
| Example 4 | 43.9 | 36.4 | 7.5 |
| Comparative example 1 | 76.1 | 55.7 | 20.4 |
Wherein, the film surface resistance is 1.9 omega/□, the input voltage is 24V, and the power density is about 500w/m 2. The above examples are data measured by electrifying for 20 minutes, the measurement environment is 23 +/-3 ℃, and the distance detection position of the thermal imager is 4 m.
In the comparative example, the maximum temperature of the film after 20 minutes of energization, which had exceeded 70 ℃, was easily harmful to PVB, and was present on both sides of the uncoated communication window 3, as shown in fig. 5 at points a and B.
In examples 1-4, the maximum temperature of the power supply is 52.6 ℃ in example 2, which is far lower than 70 ℃ in the standard, even lower than 55 ℃, and the temperature difference in the whole area is small, no obvious hot spot or cold spot exists, and particularly, the temperature difference in example 3 is only 1.7 ℃, so the improvement effect is extremely remarkable compared with the comparative example.
The current flows on the conductive film according to the "near" principle, and the current is blocked when passing through the uncoated communication window 3 and flows around the uncoated communication window 3 according to the nearest route, so that the "hot spot" phenomenon in the comparative example 1, that is, the current is converged to cause, is generated.
In examples 1 to 4, the first separator 1 and the second separator 2 were provided. When current flows from the positive electrode to the negative electrode and meets the uncoated communication window 3, just because of the existence of the separator, the current which is also expected to flow through the two sides of the uncoated communication window 3 is separated, meanwhile, the transparent conductive film 4 is separated into a slender strip shape by the plurality of uncoated strips, so that the local resistance is increased, the current still flows although the resistance is properly reduced when meeting the resistance, and the current passing through the uncoated communication window 3 is more dispersed and consumed by reasonably adjusting the distance between the uncoated strips, so that the heating effect is more uniform.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a can even heating's car coated glass with no coating communication window which characterized in that: the communication window comprises a first separator and a second separator, wherein the first separator is positioned on the outer side of the uncoated communication window, and the second separator is positioned on the outer side of the first separator;
the first separator comprises a plurality of film-free belts, and the second separator comprises a plurality of film-free belts.
2. The uniformly heatable coated automotive glass with an uncoated communication window of claim 1 wherein: the distance between the outermost film-free belt of the first separator and the innermost film-free belt of the second separator is 0.5-10 mm; the distance between the outermost film-free strip of the first separator and the extension of the uncoated communication window is 0-5 mm.
3. The uniformly heatable coated automotive glass with an uncoated communication window of claim 1 wherein: the width of the film-free belt is 0.01-1 mm; the distance between adjacent film-free belts is 0.5-10 mm; the height of the film-free belt is higher than that of the uncoated communication window, and the difference between the height of the film-free belt and the height of the uncoated communication window is 1-10 mm.
4. The uniformly heatable coated automotive glass with an uncoated communication window of claim 1 wherein: the second separator comprises a first separating piece and a second separating piece, and the first separating piece and the second separating piece are respectively positioned on two sides of the first separator and arranged in a mirror image manner; the film-free belts of the second separating body are arranged at equal intervals; the distance between the film-free strips of the second separating body is gradually increased from the side adjacent to the first separating body to the extension side of the second separating body; the sum of the widths of the first and second segments is greater than the width of the uncoated communication window.
5. The uniformly heatable coated automotive glass with an uncoated communication window of claim 1 wherein: the automobile coated glass further comprises 2 glass substrates, an adhesive layer, transparent conductive films, an upper bus and a lower bus, wherein the adhesive layer is located between the glass substrates, the transparent conductive films are located on one side of the adhesive layer, the upper bus and the lower bus are respectively connected with the transparent conductive films, and the upper bus and the lower bus are respectively located on two sides of the uncoated communication window.
6. The uniformly heatable coated automotive glass with an uncoated communication window of claim 5 wherein: the transparent conductive film is one of an off-line Low-E film or an on-line Low-E film; the material of the off-line Low-E film is at least one of metal, metal oxide or metal nitride; the metal is at least one of gold, silver, copper or aluminum, the metal oxide is at least one of silicon oxide, silicon-aluminum oxide, zinc-aluminum oxide, zinc-tin oxide, titanium oxide, zirconium oxide, niobium oxide or nickel oxide, and the metal nitride is at least one of silicon nitride, silicon-aluminum nitride, titanium nitride or carbon nitride.
7. The uniformly heatable coated automotive glass with an uncoated communication window of claim 5 wherein: the upper bus is made of at least one of silver paste, copper foil with conductive adhesive or aluminum foil; the lower bus is made of at least one of silver paste, copper foil with conductive adhesive or aluminum foil.
8. The uniformly heatable coated automotive glass with an uncoated communication window of claim 5 wherein: the distance between the two ends of the upper bus and the lower bus is larger than the distance between the adjacent positions of the upper bus, the lower bus and the uncoated communication window.
9. The uniformly heatable coated automotive glass with an uncoated communication window of claim 1 wherein: the shape of the film-free belt is one of a linear shape, a curved shape, a sawtooth shape or a rectangular wire frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921860793.9U CN211702417U (en) | 2019-10-31 | 2019-10-31 | Automobile coated glass with uncoated communication window and capable of being uniformly heated |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860793.9U CN211702417U (en) | 2019-10-31 | 2019-10-31 | Automobile coated glass with uncoated communication window and capable of being uniformly heated |
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| CN211702417U true CN211702417U (en) | 2020-10-16 |
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