Pressure balance hollow glass

Abstract

The invention relates to the technical field of hollow glass, and discloses pressure balance hollow glass which comprises at least two adjacent cavities formed by at least three glass sheets arranged in parallel at intervals; a first air hole is formed in the position, close to the end part, of the glass sheet for separating every two adjacent cavities; the spacing bar is arranged in the cavity close to the end part, and ventilation parts are arranged on two side surfaces of the spacing bar; the ventilation part is provided with a second ventilation hole; third air holes are formed in the inner ends of the spacing bars. The third air hole is communicated with the interior of the cavity and is communicated with the second air hole through the interior of the spacing bar; the second air holes are communicated with the adjacent cavities through the first air holes. Every two adjacent cavities are communicated through the third air holes in the spacing bars, the inner parts, the second air holes and the first air holes, so that pressure balance among the multiple cavities is ensured, and glass deformation caused by different pressures in the cavities is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of insulating glass, in particular to a pressure-balanced insulating glass. Background Art

[0002] Insulating glass is a mainstream glass product used in building doors, windows, curtain walls, and refrigerators. According to relevant statistics, my country's annual new construction area is approximately 2 billion to 3 billion square meters, of which the annual demand for building doors, windows, and curtain walls is approximately 400 million to 600 million square meters. With the public's increasing demand for energy conservation, the application of double-chamber and multi-chamber insulating glass is becoming increasingly widespread.

[0003] During use, dual-chamber and multi-chamber insulating glass (IGG) often experiences different temperatures within different chambers due to differences in indoor and outdoor temperatures. Due to the nature of gases expanding with heat and contracting with cold, the pressure within each chamber varies, causing the glass to deform differently between chambers. This leads to asymmetric deformation of the glass and worsens the overall optical distortion of the IGG. This optically distorted IGG creates a "funhouse mirror" effect, distorting the objects reflected by the IGG, resulting in a very poor aesthetic quality. Summary of the Invention

[0004] In view of this, the present invention provides a pressure-balanced insulating glass to solve the problem that during the use of existing insulating glass, the temperature in different chambers is often different due to the difference between indoor and outdoor temperatures; since the gas has the property of thermal expansion and contraction, the pressure in each chamber is different, resulting in different deformation of the glass between the chambers, which in turn leads to asymmetric deformation of the glass and aggravates the overall optical distortion of the insulating glass.

[0005] The present invention provides a pressure-balanced insulating glass, comprising:

[0006] At least three glass sheets are spaced apart and arranged in parallel to form at least two adjacent chambers; a first air vent is provided near the end of each glass sheet separating two adjacent chambers;

[0007] The spacer is arranged in a position near the end of the chamber, and the two side surfaces of the spacer are divided into at least a breathable portion and a sealing portion along the expansion direction of the chamber from the inside to the outside; the breathable portion is provided with a second breathable hole; a third breathable hole is provided at the inner end of the spacer; the third breathable hole is communicated with the inside of the chamber, and the third breathable hole is communicated with the second breathable hole through the inside of the spacer; the second breathable hole is communicated with the adjacent chamber through the first breathable hole; the sealing portion and the glass sheet are sealed by a watertight adhesive. Beneficial effect: The present application adopts the above technical solution, and connects each two adjacent chambers through the third breathable hole, the inner and second breathable holes on the spacer, and the first breathable hole, thereby ensuring pressure balance between multiple chambers and preventing the hollow glass from being deformed due to different temperatures and pressures in different chambers during use, resulting in different thermal expansion and contraction of the gas in the chamber; thereby reducing the asymmetric deformation of the glass, reducing the overall optical distortion of the hollow glass, and maintaining the beauty of the hollow glass. Furthermore, the present application achieves the sealing requirement of preventing water vapor penetration through watertight adhesive.

[0008] Optionally, the interior of the spacer is hollow, and the hollow interior of the spacer is filled with molecular sieve. Beneficial Effect: This application adopts the above technical solution to prevent the leakage of molecular sieve while achieving micro-flow of gas in the chamber and the spacer, ensuring stable and balanced air pressure in the chamber.

[0009] Beneficial Effect: This application adopts the above technical solution, and the spacer effectively blocks the first air hole on the glass sheet. The first air hole is not visible in the finished insulating glass, which not only has a good visual effect, but also the glass sheet in the middle is no longer subjected to stress, and the overall strength and safety performance of the insulating glass are significantly improved.

[0010] Optionally, the thickness of the glass sheet in the middle layer is no thicker than the thickness of the two outermost glass sheets. Beneficial Effect: This application adopts the above technical solution. Since the chamber pressure on both sides of the glass sheet in the middle layer is balanced, the glass sheet in the middle layer is no longer subjected to stress. The glass sheet in the middle layer can be made of a thinner material. While maintaining the overall thermal insulation performance of the insulating glass, the overall thickness and weight of the insulating glass can be reduced, significantly achieving energy and material savings.

[0011] Optionally, the outermost end of the chamber is sealed with a sealant or a structural adhesive. Beneficial effect: The present application adopts the above technical solution to further ensure the sealing effect of the chamber.

[0012] Optionally, the spacer strip is shaped like a "convex" character, and a watertight adhesive is used to seal the side grooves formed by the "convex"-shaped spacer strip. Beneficial effect: The application adopts the above technical solution to further increase the reliability of the seal.

[0013] Optionally, the watertight adhesive is watertight butyl adhesive.

[0014] Optionally, the number of the first ventilation holes is at least two; and the first ventilation holes are all dispersedly arranged.

[0015] Optionally, the head end and the tail end of the spacer bar arranged around the chamber are sealed and connected by a plug-in. Beneficial effect: The present application adopts the above technical solution to ensure the stability of the spacer bar installation.

[0016] Optionally, the chamber is filled with at least one of air and rare gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a spacer provided in an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the cross-sectional structure of the pressure-balanced insulating glass provided in an embodiment of the present invention Figure 1 ;

[0020] Figure 3 Schematic diagram of the cross-sectional structure of the pressure-balanced insulating glass provided in an embodiment of the present invention Figure 2 .

[0021] Description of reference numerals:

[0022] 1. Glass sheet; 2. Spacer; 3. Breathable part; 4. Sealing part; 5. Inner end; 6. Sealant; 7. Structural adhesive; 8. Watertight butyl adhesive. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0024] like Figures 1 to 3A specific embodiment of the pressure-balanced insulating glass shown includes: at least three spaced-apart parallel glass sheets 1 and spacer bars 2. The spacer bars 2 described in this application can be directly applied to existing insulating glass production lines to achieve mass production of insulating glass.

[0025] At least three glass sheets 1 arranged in parallel and spaced apart form at least two adjacent chambers; Figure 2 As shown, three parallel glass sheets 1 are spaced apart to form two chambers; the thickness of the glass sheets 1 ranges from 3 mm to 12 mm; Figure 3 As shown, four spaced parallel glass sheets 1 form three chambers.

[0026] like Figure 1 and Figure 2 As shown, a first air hole is provided near the end of the glass sheet 1 separating each two adjacent chambers. The spacer 2 is provided near the end of the chamber. Figure 1 As shown, the two sides of the spacer bar 2 are divided into at least a breathable portion 3 and a sealing portion 4 along the expansion direction of the chamber from the inside to the outside; the breathable portion 3 is provided with a second breathable hole; and a third breathable hole is provided at the inner end 5 of the spacer bar 2. Figure 1 and Figure 2 As shown, the third air vent is connected to the inside of the chamber, and the third air vent is connected to the second air vent through the inside of the spacer bar 2; the second air vent is connected to the adjacent chamber through the first air vent; the sealing portion 4 is sealed with the glass sheet 1 by a watertight adhesive. Specifically, the second air vent and the third air vent are both array-type air vents. The diameters of the second air vent and the third air vent are both 0.1 mm to 0.8 mm; the center distance between adjacent second air vents or adjacent third air vents ranges from 2 mm to 10 mm. The diameter of the first air vent is 1 mm to 5 mm. The chamber is filled with at least one of air or rare gas. The rare gas is at least one of argon, krypton and xenon. In Figure 2 The thickness of the glass sheet 1 is 5 mm, the diameter of the first air vent is 3 mm, the number of the first air vent is one, and the chamber is filled with krypton gas.

[0027] Specifically, the interior of the spacer bar 2 is hollow, and the hollow interior of the spacer bar 2 is filled with molecular sieve; the wall thickness of the spacer bar 2 is 0.2 mm to 1 mm.

[0028] Furthermore, the ventilation portion 3 is arranged to cover the first ventilation hole.

[0029] Furthermore, the thickness of the glass sheet 1 located in the middle layer is not thicker than the thickness of the two outermost glass sheets 1. Of course, the thickness of the glass sheet 1 located in the middle layer can be thinner than the thickness of the two outermost glass sheets 1. Figure 3 As shown, the thickness of the two glass sheets 1 in the middle layer is thinner than the thickness of the two outermost glass sheets 1. The thickness of the two glass sheets 1 in the middle layer is 1.0 mm to 12 mm, and the thickness of the two glass sheets 1 in the outermost layer is 3 mm to 12 mm. Figure 3 The thickness of the two outermost glass sheets 1 is 12 mm, and the thickness of the two glass sheets 1 in the middle layer is 1 mm; the diameter of the first air vent is 1 mm, the number of the first air vent is eight, and the chamber is filled with argon.

[0030] Furthermore, the outermost end of the chamber is sealed with a sealant 6 or a structural adhesive 7. Figure 2 As shown, the outermost end of the chamber is sealed with structural adhesive 7; Figure 3 As shown, the outermost end of the chamber is sealed with a sealant 6.

[0031] Specifically, such as Figure 1 and Figure 2 As shown, the spacer strip 2 is shaped like a "convex" character, and a watertight adhesive is used to seal the side grooves formed by the "convex"-shaped spacer strip 2. The watertight adhesive can be a watertight butyl adhesive 8.

[0032] Furthermore, the number of the first ventilation holes is at least two; the first ventilation holes are all dispersedly arranged, that is, the multiple first ventilation holes are not concentrated on the same side and are dispersed as much as possible.

[0033] Furthermore, the spacer bar 2, which surrounds the cavity, is sealed and connected at both the leading and trailing ends via an insert. The spacer bar 2 is hollow and bendable; when the insulating glass is square, the spacer bar 2 can be bent into four sides, and then sealed and connected at both the leading and trailing ends via an insert. When the leading and trailing ends are at a corner, a 90-degree insert is used for sealing.

[0034] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A pressure-balanced insulating glass, characterized in that: include: At least three glass sheets (1) are spaced apart and arranged in parallel to form at least two adjacent chambers; A first air hole is provided near the end of the glass sheet (1) separating each two adjacent chambers; A spacer bar (2) is arranged in a position near the end of the chamber, and the two side surfaces of the spacer bar (2) are divided into at least a breathable portion (3) and a sealing portion (4) along the expansion direction of the chamber from the inside to the outside; the breathable portion (3) is provided with a second breathable hole; a third breathable hole is provided at the inner end (5) of the spacer bar (2); the third breathable hole is connected to the inside of the chamber, and the third breathable hole is connected to the second breathable hole through the inside of the spacer bar (2); the second breathable hole is connected to the adjacent chamber through the first breathable hole; the sealing portion (4) is sealed to the glass sheet (1) by a watertight adhesive.

2. The pressure-balanced insulating glass according to claim 1, characterized in that: The interior of the spacer bar (2) is hollow, and the hollow interior of the spacer bar (2) is filled with molecular sieve.

3. The pressure-balanced insulating glass according to claim 1, characterized in that: The ventilation portion (3) is arranged to cover the first ventilation hole.

4. The pressure-balanced insulating glass according to claim 1, characterized in that: The thickness of the glass sheet (1) located in the middle layer is not thicker than the thickness of the two glass sheets (1) located in the outermost layers.

5. The pressure-balanced insulating glass according to any one of claims 1 to 4, characterized in that: The outermost end of the chamber is sealed with a sealant (6) or a structural adhesive (7).

6. The pressure-balanced insulating glass according to any one of claims 1 to 4, characterized in that: The spacer strip (2) is in the shape of a "convex" character, and a watertight adhesive is used to seal the side grooves formed by the "convex" character spacer strip (2).

7. The pressure-balanced insulating glass according to claim 6, characterized in that: The watertight adhesive is watertight butyl adhesive (8).

8. The pressure-balanced insulating glass according to any one of claims 1 to 4, characterized in that: The number of the first ventilation holes is at least two; and the first ventilation holes are all dispersedly arranged.

9. The pressure-balanced insulating glass according to any one of claims 1 to 4, characterized in that: The head end and the tail end of the spacer strip (2) arranged around the chamber are sealed and connected via a plug-in unit.

10. The pressure-balanced insulating glass according to any one of claims 1 to 4, characterized in that: The chamber is filled with at least one of air and rare gas.

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