CN210095497U - Glass ceramic panel for cooking device and cooking device - Google Patents
Glass ceramic panel for cooking device and cooking device Download PDFInfo
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- CN210095497U CN210095497U CN201821368180.9U CN201821368180U CN210095497U CN 210095497 U CN210095497 U CN 210095497U CN 201821368180 U CN201821368180 U CN 201821368180U CN 210095497 U CN210095497 U CN 210095497U
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- ceramic panel
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- cooking device
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Abstract
The utility model discloses a glass ceramic panel and have this glass ceramic panel's culinary art device. The glass ceramic panel includes a glass ceramic substrate having a smooth upper surface and a protrusion on a lower surface side thereof. In addition, the glass ceramic panel further includes a transparent silicone resin layer coated on the lower surface side of the glass ceramic substrate to cover the protrusions of the glass ceramic substrate and the valleys between the protrusions, so that the lower surface of the glass ceramic panel is a smooth transparent silicone resin layer. Light emitted from the light emitting display element under the glass ceramic panel can be uniformly transmitted from the glass ceramic panel to the upper side, in which case, distortion or color difference of the display mark viewed from the upper side of the glass ceramic panel does not occur.
Description
Technical Field
The utility model relates to a glass ceramic panel and have this glass ceramic panel's culinary art device, it can improve display effect.
Background
Black glass-ceramic cooking panels, e.g. glass ceramics CERAN Hightrans ○RHas a protrusion on its lower surface side to increase the damage resistance of the glass ceramic cooking panel.
During the production and installation of the glass-ceramic cooking panel, it is only in contact with other materials, such as oven carriages, conveyor rolls, packages, etc., on top of the protrusions, not in the valleys between the protrusions. Thus, possible damage, such as scratches caused by contact with hard materials, is limited to the tops of the protrusions only. The tops of these protrusions form only a small part of the entire surface of the glass-ceramic cooking surface. Thus, the overall mechanical stability of the glass-ceramic cooking panel is enhanced by the protrusions, since most of the surface area of the glass-ceramic cooking panel is free of defects such as scratches. The height of the protrusions is about 0.5mm and the lateral distance between two adjacent protrusions is about 2 mm. The protrusions are produced during the hot forming of the crystallizable pre-glass ("green glass") by rolling with a roller having protrusions. The glass ceramic cooking plate has a thickness of 4 mm.
Today, it is highly desirable to create a user interaction interface on the glass-ceramic cooking panel itself. Such a user interaction interface comprises an input device and a display device. The input device is typically a touch sensor. The display device for the black glass ceramic cooking panel is typically an LED 7-segment display. The display device displays the current heating level of the glass ceramic cooking panel in operation. The input device and the display device are both placed under the glass ceramic cooking surface. The input device senses touch through the glass ceramic cooking panel. The display means emits light which is transmitted through the glass-ceramic cooking panel and is therefore visible to the user on the other side of the panel.
Specifically, in the related art, as shown in fig. 1, the cooking apparatus 100 generally includes a heating area 101, a display area 102, and a touch area 103 in a plan view thereof. In addition, as can be seen in fig. 2, which shows a side cross-sectional view, the cooking device 100 generally comprises a heating element 1, a glass ceramic panel 2, a light emitting display element 4 of the touch sensor 3, 7 segments. Wherein the touch sensor 3 and the light emitting display element 4 are placed under the glass ceramic panel 2. Typically, the light emitting display elements 4 are LEDs. In addition, the glass ceramic panel 2 includes a smooth upper surface 21 and a protrusion 22 on the lower surface side, and therefore, the glass ceramic panel 2 includes a plurality of thick portions 23 and thin portions 24. Further, the protrusion 22 is in contact with the touch sensor 3 and the light-emitting display element 4 below. In this case, light emitted from the light-emitting display element 4 passes through the glass ceramic panel 2, i.e., the thick portion 23 and the thin portion 24, the light transmittance thereof differs when passing through the thick portion 23 and the thin portion 24, and the light is refracted at the protrusion 22 due to the cavity formed between the protrusion 22 and the thin portion 24, as shown in fig. 2. In this case, distortion or chromatic aberration occurs in the display mark viewed from the upper side of the glass ceramic panel, and thus, the protrusions 22 act like a group of lenses, distorting the image of the 7-segment display element.
Therefore, there is a need for a glass ceramic cooking panel with high mechanical stability and good visibility of 7-segment display elements. At present, a technical proposal is proposed that in the real area, the protrusions are ground and polished to make the glass ceramic flat. The grinding and polishing process is very slow and expensive. In addition, the polished area is also more susceptible to damage/scratching, thus reducing mechanical stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a glass ceramic cooking surface board that mechanical stability is high and have cooking device of this glass ceramic panel, this glass ceramic panel still has better visibility, and the light transmission from its below transmission passes this glass ceramic panel to the upside, does not have distortion and colour difference on the optics nearly.
According to the utility model discloses a glass ceramic panel for cooking device, it includes:
a glass ceramic substrate having a smooth upper surface and a protrusion on a lower side;
the transparent silicone resin layer is coated on the lower surface side of the glass ceramic substrate;
the transparent silicone resin layer covers the protrusions on the lower surface side of the glass ceramic substrate and valleys formed between the protrusions, so that the glass ceramic panel has a smooth lower surface, and light emitted from a light emitting display element below the glass ceramic panel can be uniformly transmitted from the glass ceramic panel to an upper side thereof.
In a preferred embodiment according to the present invention, the thickness of the transparent silicone layer is at least twice the height of the protrusions of the glass ceramic substrate.
In another preferred embodiment according to the present invention, the thickness of the transparent silicone layer is at least four times the height of the protrusions of the glass ceramic substrate.
In another preferred embodiment according to the present invention, the thickness of the transparent silicone is at least one fourth of the thickness of the glass-ceramic panel.
In another preferred embodiment according to the present invention, the thickness of the transparent silicone resin is not more than half of the thickness of the glass-ceramic panel.
The utility model discloses another aspect still provides a cooking device, and it includes:
according to the utility model, the glass ceramic panel is provided; and
and a light emitting display element located below the glass ceramic panel, the light emitted from the light emitting display element being uniformly transmitted from the glass ceramic panel to an upper side thereof.
In a preferred embodiment according to the present invention, the cooking device further comprises a touch sensor located below the glass ceramic panel.
In another preferred embodiment according to the present invention, the light emitting display element is a 7-segment display LED.
In the technical solution according to the present invention, since the glass ceramic panel has a smooth lower surface, the light emitted from the light emitting display element below the glass ceramic panel can be uniformly transmitted from the glass ceramic panel to the upper side thereof. Also, the glass ceramic substrate in the glass ceramic panel also has protrusions for enhancing mechanical stability, and thus it also has mechanical stability similar to that of the glass ceramic panel in the related art. In addition, it is preferable that the transparent silicone layer is composed of silicone having a refractive index equal to or close to that of the glass ceramic, in which case no distortion or color difference occurs in the display mark viewed from the upper side of the glass ceramic panel.
Drawings
Fig. 1 is a top view of a cooking apparatus according to the prior art.
Fig. 2 is a schematic sectional view of a structure of a cooking apparatus according to the related art.
Fig. 3 is a schematic view of light transmission through a glass-ceramic panel according to the prior art.
Fig. 4 is a schematic sectional view of a cooking apparatus according to the present invention.
Fig. 5 is a schematic light transmission diagram of a glass-ceramic panel according to the present invention.
FIG. 6 is a graph comparing the display effect of glass ceramic panels according to the prior art and the present invention.
Detailed Description
As shown in fig. 4, the cooking device according to the present invention includes a heating element 10, a glass ceramic panel 20, and a light emitting display element 40 of a touch sensor 30, 7 segment. Wherein the touch sensor 30 and the light emitting display element 40 are placed under the glass ceramic panel 20. The light emitting display elements 40 are preferably LEDs for a 7-segment display, or preferably in the form of dots or lines. In addition, the glass ceramic panel 20 includes a glass ceramic substrate 200, the glass ceramic substrate 200 having a smooth upper surface 201 and protrusions 202 on a lower surface side, and therefore, the glass ceramic substrate 200 includes valleys 203 between the protrusions 202. In addition, the glass ceramic panel 20 according to the present invention includes a thicker transparent silicone layer 205 coated on the underside of the glass ceramic panel 200 to smooth the protrusions 202 on the lower surface side, particularly in the region of the display element 40. Preferably, the thickness of the clear silicone layer 205 is at least twice the height of the protrusions 202, e.g., the height of the protrusions 202 is 0.5mm, and the thickness of the coated clear silicone layer 205 measured from the valleys between the protrusions 202 is at least 1 mm. Preferably, the thickness of the transparent silicone layer 205 is four times the height of the protrusion 202.
Due to the large thickness of the transparent silicone layer 205, i.e., about one-fourth to one-half of the thickness of the glass ceramic panel 20, the protrusions 202 can be effectively smoothed and the lower surface of the transparent silicone layer 205 is smooth. Therefore, the lower surface of the entire glass ceramic panel 20 including the transparent silicone resin 205 is smooth. In this case, the light emitted from the light emitting display element 40 can be uniformly transmitted from the glass ceramic panel 20 to the upper side, as shown in fig. 5.
For best visibility of the display area, the refractive index of the transparent silicone layer 205 should be matched to the refractive index of the glass-ceramic, for example, the material of the transparent silicone is selected to have a refractive index of 1.5-1.65, preferably 1.55-1.6. In this case, the display mark viewed from the upper side of the glass ceramic panel does not generate distortion or color difference, as shown in fig. 6.
In one embodiment according to the present invention, the transparent silicone layer 205 is composed of polysiloxane, which accounts for 0.5-30% of the entire surface of the glass ceramic substrate, preferably 1-10% of the entire surface of the glass ceramic panel. Furthermore, since the transmittance of the polysiloxane is > 80%, preferably > 85%, more preferably > 90%, the overall transmittance of the glass-ceramic panel 20 is reduced by no more than 20%, preferably no more than 10%, in the case of applying a thicker silicone layer, i.e. the transparent silicone layer 205.
Generally, the visible light transmittance of a black cooking panel, i.e., glass ceramic substrate 200, is about 1.5% to 2% (i.e., the value of Y in ciexyz (1931) color space, also known as luminance). In the solution according to the present invention, the glass ceramic cooking top 20 with the transparent silicone layer 205 has an overall visible light transmission of 1.2-2%, preferably 1.3-1.8%, more preferably 1.35-1.5%.
In addition, the transparent silicone layer 205 is free of seasoning pigments that may cause light scattering, e.g., free of TiO2. In selecting the material of the transparent silicone layer 205, it is necessary to select a material that is resistant to high temperatures so that it does not yellow when subjected to heat. In addition, in order to enable the glass ceramic panel 20 to achieve a better display effect, when the transparent silicone layer 205 is coated, it is necessary to ensure that there are no defects such as bubbles and drying cracks, that is, there are less than 10 bubbles per 10 square meters of the transparent silicone layer 205, and that the size of the bubbles is not more than 0.5mm x 0.1 mm.
Claims (12)
1. A glass-ceramic panel for a cooking device, comprising:
a glass ceramic substrate having a smooth upper surface and a protrusion on a lower side;
the transparent silicone resin layer is coated on the lower surface side of the glass ceramic substrate;
wherein the transparent silicone layer covers the protrusions on the lower surface side of the glass ceramic substrate and valleys formed between the protrusions, so that the glass ceramic panel has a smooth lower surface, and light emitted from the light emitting display elements below the glass ceramic panel can be uniformly transmitted from the glass ceramic panel to the upper side thereof.
2. The glass ceramic panel for a cooking device of claim 1, wherein a thickness of the transparent silicone layer is at least twice a height of the protrusion of the glass ceramic substrate.
3. The glass ceramic panel for a cooking device of claim 1, wherein the thickness of the transparent silicone layer is at least four times the height of the protrusions of the glass ceramic substrate.
4. The glass-ceramic panel for a cooking device of claim 1, wherein the transparent silicone has a thickness of at least one quarter of a thickness of the glass-ceramic panel.
5. The glass-ceramic panel for a cooking device of claim 1, wherein the transparent silicone has a thickness not more than one-half of the thickness of the glass-ceramic panel.
6. A cooking device, comprising:
a glass ceramic panel for a cooking device according to any one of claims 1 to 5; and
and a light emitting display element located below the glass ceramic panel, the light emitted from the light emitting display element being uniformly transmitted from the glass ceramic panel to an upper side thereof.
7. The cooking device of claim 6, further comprising a touch sensor located below the glass-ceramic panel.
8. The cooking device of claim 6, wherein the light emitting display element is an LED.
9. The cooking device of claim 6, wherein the light emitting display element is a 7-segment display LED.
10. The cooking device of claim 6, wherein the light emitting display elements are point-like.
11. The cooking device of claim 6, wherein the light emitting display element is linear.
12. The cooking device of claim 11, wherein the light emitting display element is an LED, and the display pattern is a letter, a number or a symbol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821368180.9U CN210095497U (en) | 2018-08-23 | 2018-08-23 | Glass ceramic panel for cooking device and cooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821368180.9U CN210095497U (en) | 2018-08-23 | 2018-08-23 | Glass ceramic panel for cooking device and cooking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210095497U true CN210095497U (en) | 2020-02-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821368180.9U Active CN210095497U (en) | 2018-08-23 | 2018-08-23 | Glass ceramic panel for cooking device and cooking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210095497U (en) |
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2018
- 2018-08-23 CN CN201821368180.9U patent/CN210095497U/en active Active
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