Vacuum glass

Abstract

The utility model relates to the field of vacuum glass, and discloses vacuum glass, which comprises two glass substrates, a vacuum layer arranged between the two glass substrates, and an air suction unit arranged at the edge position of the vacuum layer. The air suction unit is composed of a long-strip-shaped metal shell and a powdery air suction material wrapped in the metal shell. The metal shell is provided with a gap. According to the vacuum glass, the attractiveness of the vacuum glass is improved, the getter powder falling phenomenon cannot occur, the vacuum glass cannot be polluted, and the overall texture of the vacuum glass is improved.

Description

Technical Field

[0001] The utility model relates to the field of vacuum glass, in particular to a vacuum glass. Background Art

[0002] Vacuum glass usually uses strip-shaped getters or disc-shaped getters to maintain the vacuum degree of the vacuum layer. Strip-shaped getters are made by pressing getter powder on one or both sides of a long strip of metal base tape, and disc-shaped getters are made by pressing getter powder into a disc shape. These two commonly used getters have getter powder on their surfaces, and the getter surface lacks gloss, while the two glass substrates of vacuum glass are transparent. The lack of gloss of the getter inside will directly affect the overall aesthetics of the vacuum glass. In addition, during the production, transportation, and use of vacuum glass, the existing getters are prone to getter powder falling off, thereby contaminating the interior of the vacuum glass. The vacuum glass cannot be treated after being contaminated, which seriously affects the overall texture of the vacuum glass. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a vacuum glass with good aesthetics, no getter powder falling off, and good overall texture.

[0004] In order to achieve the above object, the technical solution of the utility model is:

[0005] A vacuum glass comprises two glass substrates, a vacuum layer is arranged between the two glass substrates, and also comprises an air intake unit, which is arranged at the edge of the vacuum layer; the air intake unit is composed of a long metal shell and a powdered air intake material wrapped in the metal shell; and a gap is arranged on the metal shell.

[0006] The beneficial effect is that the metal shell has high gloss, the powdered air-intake material is arranged inside the metal shell, and there will be no powder falling, and the inside of the vacuum glass will not be polluted. The vacuum glass has a good appearance and a good overall texture. The gap can provide an air-intake channel, so that the air-intake unit maintains a good air-intake effect. The air-intake unit is arranged at the edge of the vacuum layer, which does not affect the visual effect and light transmittance of the vacuum glass.

[0007] Furthermore, the metal shell is a metal tube.

[0008] The beneficial effect is that the metal tube has high gloss, the powdered air-intake material is arranged inside the metal shell, and there will be no powder falling, and the inside of the vacuum glass will not be polluted. The vacuum glass has a good appearance and a good overall texture. The gap can provide an air-intake channel, so that the air-intake unit maintains a good air-intake effect.

[0009] Furthermore, the gap is arranged on the side of the metal tube.

[0010] The beneficial effect is that the gap is set on the side of the metal tube without affecting the appearance of the air suction unit, and the side of the metal tube faces the vacuum layer, so that the air suction channel is unobstructed, thereby ensuring the air suction effect of the air suction unit.

[0011] Furthermore, a part or the whole of the metal shell is in a porous mesh structure.

[0012] The beneficial effect is that the porous mesh structure has its own gaps, providing an air intake channel.

[0013] Furthermore, the powdered getter material is a zirconium-based getter material; assuming that the weight of the powdered getter material is A, in g, and the area of ​​the glass substrate is B, in m 2 , then the numerical relationship between A and B is: 0.5g / m 2 <A / B<3g / m 2 .

[0014] The beneficial effect is that the content of the powdered getter material can be ensured to be neither too much to cause waste nor too little to affect the vacuum degree and life of the vacuum glass.

[0015] Furthermore, the wall thickness of the metal shell is 0.03mm-0.2mm.

[0016] The beneficial effect is that if the wall thickness is less than 0.03mm, the metal shell is difficult to form and the production cost of the metal shell is too high; if the wall thickness exceeds 0.2mm, the powder amount is too small after the metal shell is flattened while ensuring the overall thickness, and the length of the air intake unit is too long.

[0017] Furthermore, the metal shell is made of stainless steel, silver, aluminum, copper or titanium alloy.

[0018] The beneficial effect is that the metals made of stainless steel, silver, aluminum, copper or titanium alloy have good stability and low outgassing rate, which helps to ensure the suction effect of the suction unit and thus ensure the service life of the vacuum glass.

[0019] Furthermore, the metal shell is subjected to degreasing, derusting, degassing, coating and / or polishing treatments.

[0020] The beneficial effects are: ensuring the cleanliness of the metal shell without contaminating the inside of the vacuum glass, ensuring a high vacuum degree of the vacuum glass, further improving the glossiness of the air suction unit, and further improving the aesthetics of the vacuum glass.

[0021] Furthermore, a mark is provided on the surface of the metal tube in contact with the glass substrate.

[0022] The beneficial effect is to improve the anti-counterfeiting and traceability of vacuum glass and facilitate digital production.

[0023] Furthermore, a receiving groove is provided on one of the glass substrates, the receiving groove is arranged at an edge of the vacuum layer, and the receiving groove is used to receive the air suction unit.

[0024] The beneficial effect is that during the installation of the air suction unit, the accommodating groove can facilitate the positioning and installation of the air suction unit; after the subsequent vacuum glass production is completed, the air suction unit accommodating groove can play a role in fixing the air suction unit.

[0025] In summary, the beneficial effects achieved by the present invention are as follows:

[0026] (1) By encapsulating the powdered getter material in a metal shell, the problem of poor glossiness of the existing getter surface, easy powder shedding of the getter inside the vacuum glass, and contamination of the vacuum glass is solved, thereby improving the aesthetics of the vacuum glass, preventing the getter from falling off and contaminating the vacuum glass, and improving the overall texture of the vacuum glass;

[0027] (2) The opening of the gap on the metal shell ensures a good suction effect of the suction unit;

[0028] (3) The amount of powdered getter material is accurate, ensuring the vacuum degree and service life of the vacuum glass without causing waste of getter material;

[0029] (4) The setting of the logo on the metal shell improves the anti-counterfeiting and traceability of the vacuum glass products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention, and a person skilled in the art can also obtain other drawings based on these drawings.

[0031] Figure 1 is a top view of the vacuum glass of Example 1;

[0032] Figure 2 is a schematic diagram of the cross-sectional structure of the vacuum glass of Example 1;

[0033] Figure 3 is a top view of the metal housing of the first embodiment;

[0034] Figure 4 A top view of a metal housing according to another implementation method of Example 1;

[0035] Figure 5 is a schematic diagram of the cross-sectional structure of the vacuum glass of the second embodiment;

[0036] Figure 6is a top view of the metal housing of the third embodiment;

[0037] Figure 7 is a top view of the metal housing of the fourth embodiment;

[0038] Figure 8 is a top view of the metal housing of the fifth embodiment;

[0039] Fig. 9 This is a schematic diagram of the cross-sectional structure of the vacuum glass of Example 6.

[0040] In the figure: 1. glass substrate; 2. sealing part; 3. vacuum layer; 4. air absorption unit; 41. metal shell; 42. powdered air absorption material; 5. gap; 6. containing groove. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application.

[0042] It should be noted that the embodiments of the present invention and the features involved in the embodiments can be combined with each other without conflict. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] Example

[0044] As attached Figure 1 To Attachment Figure 3 As shown, a vacuum glass comprises two glass substrates 1, which are separated by a support and sealed at their peripheries by a sealing portion 2, forming a vacuum layer 3 between the two glass substrates 1 and the sealing portion 2. An air suction unit 4 is provided at the edge of the vacuum layer 3, that is, the air suction unit 4 is provided close to the sealing portion 2, and the length direction of the air suction unit 4 is parallel or nearly parallel to the length direction of the sealing portion 2. The air suction unit 4 is provided at the edge of the vacuum layer 3, which has little effect on the overall visual effect and light transmittance of the vacuum glass. Figure 1 In the embodiment, there is one air suction unit 4 . In other embodiments, there may be multiple air suction units 4 , and the multiple air suction units 4 are all arranged at the edge of the vacuum layer 3 .

[0045] The air intake unit 4 includes a long metal shell 41 and a powdered air intake material 42 coated inside the metal shell 41. The material of the metal shell 41 can be any one of stainless steel, silver, aluminum, copper or titanium alloy. The metal shell 41 coats the powdered air intake material 42 inside the metal shell 41 to prevent the air intake unit 4 from falling powder and contaminating the inside of the vacuum glass. The outer wall of the metal shell 41 has a high glossiness, which can effectively improve the appearance quality of the air intake unit 4, thereby improving the overall appearance quality of the vacuum glass.

[0046] The wall thickness of the metal shell 41 can be any value between 0.03mm and 0.2mm. For example, the wall thickness of the metal shell 41 can be 0.03mm, 0.05mm, 0.1mm or 0.2mm. It is worth noting that when the wall thickness of the metal shell 41 is less than 0.03mm, the metal shell 41 is difficult to form, and its production cost will be greatly increased. When the wall thickness of the metal shell 41 is greater than 0.2mm, in order to ensure the overall thickness of the air intake unit 4, the amount of powdered air intake material 42 that can be filled inside the metal shell 41 is small, and the overall length of the air intake unit 4 needs to be extended, which affects the arrangement of the air intake unit 4 inside the vacuum glass and affects the appearance of the vacuum glass.

[0047] The metal shell 41 is provided with a gap 5. The gap 5 may be a gap, a hole, a crack or a hole. The gap 5 may be naturally formed during the manufacturing process of the metal shell 41, or may be opened on the metal shell 41 using a tool such as a blade or a needle. The opening of the gap 5 allows the powdered getter material 42 in the metal shell 41 to directly contact the vacuum layer 3, providing an air suction channel for the powdered getter material 42, thereby ensuring the air suction effect of the air suction unit 4.

[0048] Preferably, the metal shell 41 is degreased before being filled with the powdered air-intake material 42. This ensures the cleanliness of the metal shell 41, and after being installed inside the vacuum glass, it will not contaminate the vacuum glass. In another embodiment, the metal shell 41 is derusted before being filled with the powdered air-intake material 42, and the rust removal can also ensure the cleanliness of the metal shell 41. In another embodiment, the metal shell 41 is also polished, and polishing can further increase the glossiness of the metal shell 41, so that the appearance quality of the air-intake unit 4 is further improved, and thus the overall appearance texture of the vacuum glass can be improved. In another embodiment, the metal shell 41 is also degassed, and degassing can reduce the residual gas content in the metal shell 41, thereby reducing the amount of gas released during the use of the air-intake unit 4, and improving the air-intake effect and service life of the air-intake unit. In another embodiment, the metal shell 41 is also coated, and the coating can make the glossiness of the metal shell better, and make the subsequent high-frequency induction heating of the air-intake unit more sensitive, which is helpful for the activation of the air-intake unit. In another embodiment, the metal shell 41 is degreased, derusted, degassed, plated and polished before being filled with the powdered getter material 42. The degreasing, derusting, degassing, plating and polishing processes can be processed by commonly used methods in the field of metal deep processing, which will not be described in detail here.

[0049] The powdered getter material 42 is a zirconium-based getter material, which may be a zirconium-vanadium-iron getter material or a zirconium-vanadium-aluminum getter material. Assume that the weight of the powdered getter material is A, in g, and the area of ​​the glass substrate is B, in m 2 , then the numerical relationship between A and B is: 0.5g / m 2 <A / B<3g / m 2 In the field of vacuum glass technology, technicians generally believe that the air absorption capacity of about 0.06g of the getter material is greater than that of 1m 2 The outgassing capacity of vacuum glass in 50 years, that is, 0.06g of getter material can meet the requirements of 1m 2 50 years of use of vacuum glass, i.e. A / B = 0.06g / m 2 However, the inventors found in the research process that due to the initial vacuum degree of vacuum glass, vacuum glass manufacturing process, getter storage conditions, vacuum glass use conditions and other factors, 0.06g of getter material is far from meeting the actual demand. After theoretical calculation and experimental verification, when 0.5g / m 2 <A / B<3g / m 2 That is, the weight of the powdered getter material required per square meter of the glass substrate is greater than 0.5 grams and less than 3 grams, thereby ensuring that the content of the powdered getter material is neither too much to cause waste nor too little to affect the vacuum degree and life of the vacuum glass.

[0050] In this embodiment, the metal shell 41 is a metal tube. Figure 2 and attached Figure 3 As shown, there are multiple gaps 5, which are arranged on the surface where the metal tube contacts one of the glass substrates 1, which is the upper surface of the metal shell 41 in this embodiment. The gaps 5 can be round holes, square holes, triangular holes or holes of any other shape. The gaps 5 can be arranged in one row or multiple rows or irregularly on the upper surface of the metal shell 41.

[0051] In another embodiment, as shown in the attached Figure 4 As shown, the gap 5 is a gap, and the gap runs through the length direction of the metal shell 41. The gap 5 may not run through the length direction of the metal shell 41, but may be set at a certain position on the surface of the metal shell 41.

[0052] In another embodiment, the gap 5 is provided on two surfaces of the metal tube that are in contact with the two glass substrates 1 respectively.

[0053] It is understandable that the function of the gap 5 is to provide an air intake channel for the powdered air-intake material 42, so the specific shape, number, and opening position of the gap 5 can be arbitrary as long as the air intake requirements are met. Of course, the more gaps 5 are set and the larger the area, the more and larger air intake channels are provided for the powdered air-intake material 42.

[0054] Preferably, the surface of the metal tube body in contact with the glass substrate 1 is provided with a logo. The logo may be a brand logo, which can enhance the overall texture of the vacuum glass and have a certain anti-counterfeiting effect. The logo may be provided on the metal tube body by laser or other methods.

[0055] Preferably, the identification can be a character string, a QR code or a barcode containing vacuum glass information. The vacuum glass information can be the size information of the vacuum glass, the production and processing information of the vacuum glass, and the information of the raw materials of each component of the vacuum glass, or a combination of several of them. The identification containing the vacuum glass information can make the vacuum glass products traceable and facilitate digital production. In addition, in order to realize the digital production of vacuum glass, it is usually necessary to set identifications such as QR codes, digital labels, bar codes, etc. on the glass substrate 1 during the production process. However, setting the identification on the glass substrate 1, on the one hand, because the glass is transparent, the identification is poor, and on the other hand, it affects the overall appearance of the vacuum glass. Setting the identification on the outer wall of the metal tube can avoid the occurrence of the above two problems.

[0056] Example

[0057] As attached Figure 5As shown, the metal shell 41 is a metal tube. Different from the first embodiment, the metal tube has no tube head, only a tube body, and the inside of the metal tube is filled with powdered getter material 42. The openings at both ends of the metal tube are gaps 5. The openings at both ends of the metal tube are on the side of the metal tube. The side of the metal tube refers to the surface that does not contact the two glass substrates 1 of the vacuum glass, that is, the surface facing the metal tube and the vacuum layer 3. The gap 5 is set on the side of the metal tube. On the one hand, it makes the air intake channel smoother and reduces the air intake resistance. On the other hand, it ensures the integrity of the appearance of the contact surface between the air intake unit 4 and the two glass substrates 1 of the vacuum glass, and does not affect the appearance quality of the vacuum glass.

[0058] Example

[0059] As attached Figure 6 As shown, different from the first embodiment, in this embodiment, there are multiple gaps 5, which are arranged on two sides of the length direction of the metal shell 41, and the gaps 5 are square. In other embodiments, there can be only one gap 5, which can be circular, elliptical or other shapes.

[0060] Example

[0061] As attached Figure 7 As shown, different from the first embodiment, the metal shell 41 is in a porous mesh structure as a whole, and the holes on the metal shell 41 are the gaps 5.

[0062] Example

[0063] As attached Figure 8 As shown, different from the fourth embodiment, the left side of the metal shell 41 is a closed structure, and the right side of the metal shell 41 is a porous mesh structure. In this case, the holes on the metal shell 41 are gaps 5. At this time, a logo can also be set on the left side of the metal shell 41. The logo can be a brand logo, which can improve the overall texture of the vacuum glass on the one hand, and has a certain anti-counterfeiting effect on the other hand. The logo can be set on the tube body of the metal tube by laser or other methods.

[0064] Preferably, the identification can be a character string, a QR code or a barcode containing vacuum glass information. The vacuum glass information can be the size information of the vacuum glass, the production and processing information of the vacuum glass, and the information of the raw materials of each component of the vacuum glass, or a combination of several of them. The identification containing the vacuum glass information can make the vacuum glass products traceable and facilitate digital production. In addition, in order to realize the digital production of vacuum glass, it is usually necessary to set identifications such as QR codes, digital labels, bar codes, etc. on the glass substrate 1 during the production process. However, setting the identification on the glass substrate 1, on the one hand, because the glass is transparent, the identification is poor, and on the other hand, it affects the overall appearance of the vacuum glass. Setting the identification on the outer wall of the metal tube can avoid the occurrence of the above two problems.

[0065] In other embodiments, the middle portion of the upper surface and / or lower surface of the metal shell 41 may be a closed structure, and the remaining portion may be a porous mesh structure.

[0066] Example

[0067] As attached Fig. 9 As shown, different from the first embodiment, in this embodiment, a receiving groove 6 is provided on the inner surface of one of the glass substrates 1 of the vacuum glass, and the receiving groove 6 is used to receive the air suction unit 4. The size of the receiving groove 6 is adapted to the size of the air suction unit 4, so that the air suction unit 4 can be placed in the receiving groove 6. The receiving groove 6 is located at the edge of the vacuum layer 3, that is, it is arranged close to the sealing part 2, and the length direction of the receiving groove 6 is parallel or nearly parallel to the length direction of the sealing part 2. The provision of the receiving groove 6, on the one hand, can facilitate the positioning and installation of the air suction unit 4 during the installation process of the air suction unit 4, and on the other hand, after the subsequent production of the vacuum glass is completed, the receiving groove 6 of the air suction unit 4 can play a role in fixing the air suction unit 4.

[0068] In other embodiments, there may be a plurality of accommodating grooves 6 , and the plurality of accommodating grooves 6 are distributed on one edge or multiple edges of the glass substrate 1 , and each accommodating groove 6 may accommodate one or more air suction units 4 .

Claims

1. A vacuum glass comprising two glass substrates, a vacuum layer being arranged between the two glass substrates, characterized in that: It also includes an air suction unit, which is arranged at the edge of the vacuum layer; the air suction unit is composed of a long metal shell and a powdered air suction material wrapped in the metal shell; and gaps are arranged on the metal shell.

2. The vacuum glass according to claim 1, characterized in that: The metal shell is a metal tube.

3. The vacuum glass according to claim 2, characterized in that: The gap is arranged on the side of the metal tube.

4. The vacuum glass according to claim 1, characterized in that: A part or the whole of the metal shell is in a porous mesh structure.

5. The vacuum glass according to claim 1, characterized in that: The powdered getter material is a zirconium-based getter material; the weight of the powdered getter material is A, in g, and the area of ​​the glass substrate is B, in m 2 , then the numerical relationship between A and B is: 0.5g / m 2 <A / B<3g / m 2 .

6. The vacuum glass according to claim 1, characterized in that: The wall thickness of the metal shell is 0.03mm-0.2mm.

7. The vacuum glass according to claim 1, characterized in that: The material of the metal shell is stainless steel, silver, aluminum, copper or titanium alloy.

8. The vacuum glass according to claim 1, characterized in that: The metal shell is subjected to degreasing, derusting, degassing, coating and / or polishing treatments.

9. The vacuum glass according to claim 2, characterized in that: The surface of the metal tube in contact with the glass substrate is provided with a mark.

10. The vacuum glass according to claim 1, characterized in that: A receiving groove is provided on one of the glass substrates. The receiving groove is arranged at the edge of the vacuum layer and is used to receive the air suction unit.

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