Splicing component and vacuum glass made of the splicing component

Abstract

A splicing component for making vacuum glass, the splicing component being a cut-off corner portion of a flat glass on one side of a vacuum glass (10), used to be processed separately from a main body portion (100) remaining after the vacuum glass (10) is cut off, and then re-spliced ​​with the main body portion (100) to form a complete vacuum glass (10).

Description

Technical Field

[0001] The invention relates to a manufacturing structure of vacuum glass, in particular to a panel splicing component, which is a part of a glass panel on one side of the vacuum glass, and the vacuum glass manufactured by using the splicing component. Background Art

[0002] The heat insulation, sound insulation and energy-saving and environmental protection effects of vacuum glass have made it widely used in many industries such as construction, medical treatment, storage and home appliances since its industrialization at the end of the last century.

[0003] The current mature vacuum glass production structure is as follows Figure 1a and Figure 1b As shown. Figure 1a For example, the upper glass 1 and the lower glass 2 separated by the support 3 are sealed by edge sealing or sealing material 5 to form a sealed cavity as a vacuum layer 6. An exhaust hole is made at an appropriate position of the upper glass 1 (usually near a bottom corner of the glass panel), and an exhaust pipe 4 (usually 1-2 mm in diameter and with a maximum cross-sectional area of ​​about 3 mm) is inserted into the upper glass 1. 2 ) is welded in the exhaust hole as a key exhaust device for vacuum glass production. A vacuum pump or vacuum furnace exhausts the gas in the sealed cavity through the exhaust pipe 4 and seals the exhaust pipe 4 to form a vacuum layer 6. In order to protect the exhaust pipe from damage, a protective cap 8 needs to be installed, and a getter 7 is placed in the vacuum layer 6 to absorb residual gas and gas released from the processing materials (such as support or sealing materials).

[0004] Figure 1b The vacuum glass shown is Figure 1a The improvement of the vacuum glass shown in the figure is that the exhaust pipe 4 is welded in the exhaust hole without exceeding the surface of the upper glass 1, so that a protective sheet 8' can be used instead. Figure 1a The protective cap 8 in.

[0005] As a typical prior art for vacuum glass production, reference may be made to patent publication PCT / AU90 / 00364.

[0006] There are still some technical problems in the production process of the above-mentioned prior art vacuum glass. On the one hand, the processing related to the upper glass 1 mainly involves two aspects, namely: as a side of the vacuum glass, it must cooperate with the lower glass 2 through the support 3 and the sealing material 5 to form a main body to realize the heat insulation function of the vacuum glass; at the same time, in order to achieve vacuuming, holes must be punched at appropriate positions to make a vital exhaust device for obtaining and maintaining vacuum. Although the emphasis of these two processing is completely different, since it is a piece of integral glass, both aspects must be taken into account during processing, that is, these two aspects affect each other, and a completed processing still has to go through the test of the next processing process. On the other hand, due to the use of the exhaust pipe 4 and the protective cap 8 (protective sheet 8') of the exhaust sealing device, these "external objects", make their geometric outer edges protrude from the surface of the upper glass 1, causing inconvenience during transportation, installation and use, and it is especially easy to break, causing the product to lose vacuum and fail. Furthermore, since the exhaust hole must be made before the tempering process and its distance from the edge of the vacuum glass cannot be too small (usually it needs to be more than 2.5 cm from the edge), the appearance of the finished vacuum glass is affected by the presence of the exhaust port and the getter that may be used and the appearance is not good (for example, the exhaust port cannot be blocked by the window frame), especially in small-sized vacuum glass products. Summary of the invention

[0007] The technical solution proposed in the present invention aims to overcome the above-mentioned problems of the prior art and proposes a vacuum glass structure design scheme with panel local splicing components, the core of which lies in the design scheme of the splicing components and the vacuum glass made using the splicing components.

[0008] According to the technical solution of the present invention, a splicing component for making a vacuum glass (10) is provided, wherein the splicing component (101, 102) is a partially cut portion of a flat glass on one side of the vacuum glass (10), and is used to be processed separately from the main body (100) remaining after the vacuum glass (10) is cut, and then re-spliced ​​with the main body (100) to form a complete vacuum glass (10).

[0009] According to one solution of the present invention, a splicing component for making vacuum glass (10) is provided, wherein the splicing component (101) is a cut corner portion of a single-sided glass panel, the inner surface of the cut corner portion has a recess (D) for accommodating a getter (7); and welding material (F) is arranged along the side surfaces of the hypotenuse (c) and the bottom edges of the right-angled sides (b, c) of the cut corner portion.

[0010] According to another solution of the present invention, a splicing component for making vacuum glass (10) is provided, wherein the splicing component (102) is a cut corner portion of a single-sided glass panel, the cut corner portion has a through hole (T) for accommodating a getter (7) and a sealing sheet (P) for sealing the through hole (T); and welding material (F) is arranged along the side surfaces of the hypotenuse (c) and the bottom edges of the right-angled sides (b, c) of the cut corner portion.

[0011] In the splicing components for making vacuum glass (10) according to the above-mentioned solution of the present invention, the inner surface of the truncated corner part (101, 102) has a groove (H) or an opening (H') for connecting a pit (D) or a through hole (T) for accommodating a getter (7) with a vacuum layer of the vacuum glass (10).

[0012] In the splicing components for making vacuum glass (10) according to the above-mentioned solution of the present invention, a chamfered surface (L) is formed along the upper edge of the bevel (c) of the truncated portion, and welding material (F) is arranged on the chamfered surface (L) and at least one of the side surfaces and the bottom edge of the right-angled sides (b, c).

[0013] The present invention also provides a vacuum glass (10) formed by re-joining the splicing parts (101, 102) made by the above-mentioned solution and the main body (100) remaining after being cut off and processed separately.

[0014] The present invention also provides a method for manufacturing vacuum glass, which includes the following core steps: cutting off a portion of a single-sided glass panel as a splicing component, and processing the splicing portion so that it has the structural features defined in one of the above schemes; using the single-sided glass panel with the cut portion as the splicing component and another complete single-sided glass panel to manufacture a main body of the vacuum glass that only lacks the splicing component; tempering the main body of the vacuum glass; and sealing and combining the tempered main body with the processed splicing component and performing vacuum extraction at the same time to manufacture a complete vacuum glass.

[0015] The common feature of the above technical solutions of the present invention is to "split" at least one part of one of the glass sheets constituting the vacuum glass, such as the upper glass, so as to achieve targeted processing of the split part and the remaining main body of the split part, and then reassemble them to form a complete vacuum glass. The technical solution of the present invention avoids mutual interference between the processing of different targets, improves the efficiency and yield of vacuum glass production, and realizes the structural improvement of vacuum glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1a and Figure 1bIt is a cross-sectional schematic diagram of vacuum glass in the prior art;

[0017] Figure 2 is a schematic diagram of a local splicing component according to an embodiment of the present invention;

[0018] Figure 3 Yes Figure 2 A schematic diagram comparing a top view and a cross-sectional view of a vacuum glass formed by combining the splicing parts with the main body;

[0019] Figure 4 yes Figure 2 An improved solution of the splicing component shown;

[0020] Figure 5 yes Figure 2 Another improvement of the splicing component shown;

[0021] Figure 6 yes Figure 2 Another improved solution of the splicing component shown;

[0022] Figure 7 yes Figure 2 Another improved solution of the splicing component shown;

[0023] Figure 8 is a schematic diagram of a local splicing component according to another embodiment of the present invention;

[0024] Fig. 9 Yes Figure 8 A schematic diagram comparing a top view and a cross-sectional view of a vacuum glass formed by combining the splicing parts with the main body;

[0025] Fig.10 yes Figure 8 An improved solution of the splicing component shown. DETAILED DESCRIPTION

[0026] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0027] See also Figure 2According to an embodiment of the present invention, the local splicing component 101 of the vacuum glass is a right-angled triangular glass sheet, and the figure shows an isosceles triangle with a base angle of 45°, and a pit D (or blind hole) is formed on the surface for placing the getter 7. The splicing component 101 can be regarded as a truncated corner cut from the upper glass of the vacuum glass 10. The splicing component 101 is used as a sealing piece, and its isosceles triangle geometric shape can also be replaced by a quadrilateral, a circle or other shapes. The isosceles triangle truncated corner sealing piece in the figure is the best embodiment of the present invention, and the waist length of the isosceles triangle can be preferably, for example, 2cm to be suitable for the production of vacuum glasses of various sizes. The pit circle D shown in the figure for accommodating the getter is a circular blind hole, and any other suitable pit can also be used instead. According to the thickness of the selected flat glass and the size of the vacuum glass produced, the diameter of the pit D is usually selected between 0.5-1cm, and the depth can be selected as 0.2cm.

[0028] like Figure 2 As shown, a proper amount of solder F is evenly distributed on the bottom surface of the right-angled sides a and b and the side surface of the hypotenuse c of the splicing component 101 as a sealing piece. The solder F on the bottom surface of the right-angled sides a and b of the splicing component 101 is used for welding and sealing the splicing component with the lower glass, and the solder F on the side surface of the hypotenuse c is used for welding and sealing the splicing component 101 with the remaining part of the upper glass with the truncated corner cut off, so as to "join" the truncated corner back to its original position and "restore" the integrity of the upper glass of the vacuum glass 10.

[0029] Figure 3 Shows the Figure 2 The schematic diagram of the comparison between the top view and the cross-sectional view of the vacuum glass 10 formed by combining the splicing component 101 with the main body 100 is shown. In this embodiment, the process of splicing the splicing component 101 with the main body 100 is also the process of forming the vacuum layer V. Specifically, when the splicing component 101 is combined with the main body 100, the vacuum layer V is formed. Figure 2 After the splicing component 101 shown is put back to its original cut-off position and aligned with the main body 100, the solder carried by it will melt as the processing temperature rises, and this melting process is the above-mentioned "welding" process. At the same time, before the sealed welding of the cut corner is realized and returned to its original position, the gaps between the pre-set solders F on the splicing component 101 are used as vacuum channels. The vacuum device extracts the air between the upper and lower glass through these gaps between the pre-set solders F to form a vacuum layer. With the melting and sealing welding of the pre-set solders F, the gaps between all the pre-set solders F are sealed while the splicing component 101 is sealed and welded to the main body 100, thereby maintaining the vacuum layer V between the upper and lower glass and completing the production of the vacuum glass 10.

[0030] The getter 7 is pre-placed in the recess D of the splicing component 101, and can be selected from a variety of getters, such as evaporable getters, non-evaporable getters, encapsulated getters, etc. The size and shape of the getter should be selected to meet the needs of the diameter, depth and shape of the groove on the splicing component 101, as well as the production environment and processing equipment such as the solder used and the temperature of the vacuum furnace.

[0031] The thickness of the glass used in the splicing component 101 is preferably the same as the thickness of the glass used in the spliced ​​main body 100. During the splicing process, a number of supports that are the same as those used in the main body 100 can be placed under the splicing component 101D to ensure the consistency of the vacuum layer and the flatness of the surface of the vacuum glass.

[0032] In fact, since the melting process of the solder during the soldering of the splicing component 101 and the main body 100 can be controlled, the splicing component 101 can also be supported without a support, but by doping the solder with infusible particles, such as glass or metal beads, whose diameter is equal to the height of the support used in the main body 100. In addition, in order to achieve a fast vacuuming process and increase the amount of getter placement, the splicing component 101 can be used at multiple corners of the vacuum glass 10 to make vacuum glass.

[0033] The solder F is selected based on multiple conditions such as the thickness of the glass used, the getter, the temperature of the vacuum furnace, etc. Depending on the processing object and conditions, the type, property, and shape of the solder used on the side of the hypotenuse c of the splicing component 101 of this embodiment and the solder used along the bottom surface of the right-angled sides a and b can be the same or different. For example, it can be selected from glass powder solder or metal solder. The amount of pre-set solder F used must ensure that after it melts, the side of the hypotenuse c of the splicing component 101 and the bottom surface along the right-angled sides a and b are completely sealed and welded with the main part 100, while it cannot be too much to penetrate into the channel between the pit D where the getter 7 is placed and the vacuum layer V, making the channel for the getter 7 to play a role unsmooth, or even overflowing into the vacuum layer to destroy the beauty of the vacuum glass.

[0034] The reference data in the laboratory production of the splicing component 101 of this embodiment are as follows:

[0035] The shaped splicing component 101 is made of high-performance glass. Shape: isosceles triangle. Glass thickness 4mm. Size: waist length about 30mm, height about 21mm, bottom edge about 42mm.

[0036] Considering that the height of the support for the vacuum glass in the main part is 0.2mm (i.e. the distance between the two pieces of glass is about 0.2mm), and it can meet the exhaust requirements of large-area vacuum glass (such as 3m×3m):

[0037] Dimensions of the groove for getter placement: (The getter is evaporative type TAAL01 With support, not encapsulated).

[0038] Selection and use of pre-set solder:

[0039] Solder selection: glass solder (for example, amorphous lead-free glass solder, with a sealing temperature of 390°C and 440°C, 390°C solder can be used around the main body 100, and 440°C solder or 390°C solder can be used for the splicing component 101).

[0040] Presetting method: Add a blending agent to powdered solder to make a paste and add a small amount of glass or metal beads with a diameter close to the thickness of the support used for vacuum glass 0.2mm to ensure that there is a gap between the splicing component 101 and the lower glass of the main part 100 after pressure sealing and welding.

[0041] according to Figure 2 The distribution method in the schematic diagram is that solder particles F with a diameter of 1 mm, a height of 0.5 mm, and a spacing of 1 mm are uniformly pre-placed along the side of the hypotenuse c and the bottom of the right-angled sides a and b of the splicing component 101 of the above-mentioned geometric dimensions (the cross-section formed by the intervals of the solder particles serving as the exhaust channel is much larger than the channel area (about 15 mm×0.2 mm) at the welding point between the bottom of the splicing component 101 and the main part to maintain the exhaust conduction)

[0042] Figure 4 Another splicing component 101a according to the present invention is shown. Figure 2 An improved solution of the splicing component 101 is shown. Figure 4 As shown, a groove H is added to the bottom surface of the splicing component 101a for connecting the pit D accommodating the getter 7 and the vacuum layer V of the manufactured vacuum glass 10, thereby improving the performance of the getter 7 and ensuring the effective function of the getter 7 in the event of solder overflow.

[0043] Figure 5 Another splicing component 101b according to the present invention is shown. Figure 2 Another improvement of the splicing component 101 is shown. Figure 5 As shown, the circular pit D on the bottom surface of the splicing component 101b is set at a position intersecting the bottom edge of the hypotenuse c, and the opening H' whose height is the same as the depth of the pit D connects the pit D with the vacuum layer V of the vacuum glass 10, so that the getter 7 placed in the pit D is directly exposed to the vacuum layer V, thereby improving the performance of the getter 7 and ensuring the effective function of the getter 7 in the event of solder overflow.

[0044] Figure 6Another splicing component 101c according to the present invention is shown. Figure 2 Another improvement of the splicing component 101 is shown. Figure 6 As shown, as the cut corner of the glass panel on one side of the vacuum glass 10, the upper edge of the hypotenuse c of the splicing component 101c is chamfered to form a chamfered surface L, and solder F is arranged on the formed chamfered surface L, together with the solder F arranged on the side surface of the hypotenuse c and the bottom edge of the right-angled sides b and c, the splicing component 101c and the main body 100 are welded and spliced ​​together.

[0045] Figure 6 The role of the solder F of the chamfered surface L is to increase the firmness of the welding and the reliability of the sealing on the one hand, and on the other hand, appropriately reduce the amount of solder placed on the side of the bevel c, or even omit the placement of some solder in the middle part of the side of the bevel c, so as to avoid the overflow of solder during the vacuum heating process and block the release channel of the getter 7. In the manufacturing practice, the distribution of the solder can be determined according to the processing environment such as the vacuum furnace used and the properties of the solder. In fact, as long as the solder is reasonably arranged on the side of the bevel c or one of the formed chamfered surfaces L, the need to reliably splice the splicing component with the main part can be met.

[0046] Understandably, Figure 6 The technical solution for placing the solder F on the chamfered surface L shown can be Figure 2 , Figure 4 and Figure 5 Any of the embodiments shown may be used in combination.

[0047] Figure 7 Another splicing component 101d according to the present invention is shown. Figure 2 Another improvement of the splicing component 101 is shown. Figure 7 As shown, the cut corner of the glass panel on one side of the vacuum glass 10 is also shown. Figure 2 The recess pre-set in the splicing component 101d is a step recess T', and when the splicing component 101b is manufactured, the getter 7 is pre-encapsulated in the step recess T' by using a metal or glass encapsulation sheet P' and activated. After the splicing component 101d and the vacuum glass body 100 are spliced ​​together, no activation treatment is required, thereby simplifying the processing equipment and process.

[0048] Figure 8 is a schematic diagram of a local splicing component according to another embodiment of the present invention. Figure 2 A variation of the embodiment shown. Specifically, Figure 8 The splicing component 102 is shown with Figure 2 The difference of the splicing component 101 shown is that: Figure 2The pit D of the splicing component 101 is changed into a through hole T for accommodating the getter 7, and a sealing sheet P is provided to seal the through hole by welding.

[0049] Figure 8 The advantages brought about by the improvement of the splicing component 102 shown are that, on the one hand, since the through hole T provides a larger placement space for the getter 7, a larger volume of getter can be used to achieve a longer-term maintenance of the vacuum effect of the manufactured vacuum glass; on the other hand, according to the needs of specific products, the welding and splicing operations of the splicing component 102 and the main part 100 and the placement of the getter and the final vacuum extraction and sealing operations can all be carried out in steps, which will make it possible to further adopt more targeted measures for these two operations of different nature. For example, after the splicing component 102 with the through hole T is first welded and spliced ​​with the main part 100, the sealing operation of the sealing sheet after placing the getter in the through hole and evacuating the vacuum can be carried out completely in different environments where the welding and splicing operations are performed, and there are more choices for the materials used for the sealing sheet. Figure 8 The sealing sheet P of the illustrated splicing component 102 may be made of, for example, metal or glass, and the solder / adhesive material used to seal the through hole T with the sealing sheet P may be, for example, glass solder or metal solder.

[0050] It is understandable that, referring to Figure 4 , Figure 5 and Figure 6 The improved methods described can be used with Figure 8 The splicing components 102 shown are used in combination and are not described in detail here.

[0051] Fig. 9 Shows the Figure 8 The top view and cross-sectional view of the vacuum glass formed by combining the splicing component 102 and the main body 100 are shown in FIG. 1 . Except for the need to use a sealing sheet P to seal the through hole T, the remaining structure and operation are the same as those described in FIG. Figure 2 The description is similar.

[0052] Fig.10 Another splicing component 102a according to the present invention is shown. Figure 8 An improved solution of the splicing component 102 is shown. Fig.10 As shown, without significantly losing the space for placing the getter, a stepped hole T' is used to replace the original through hole T, and a sealing sheet P of appropriate thickness is inserted into the stepped hole T' and aligned with the upper surface of the splicing component 102, so that the manufactured vacuum glass 10 remains truly flat.

[0053] From the description of the above embodiments, it can be clearly seen that the substantial improvement of the present invention in the method of manufacturing vacuum glass is as follows: a portion of a single-sided glass panel is cut off as a splicing component, and the splicing portion is processed so as to have the structural characteristics defined in one of the above schemes; the single-sided glass panel with the cut portion as the splicing component and another complete single-sided glass panel are used to manufacture the main body of the vacuum glass that only lacks the splicing component; the main body of the vacuum glass is tempered; the tempered main body and the processed splicing component are melt-sealed and combined and vacuum-extracted at the same time to manufacture a complete vacuum glass.

[0054] The embodiments of the present invention realize the partial interception, targeted separation and re-splicing of the flat glass on one side of the vacuum glass, thereby improving the production efficiency and yield rate of the vacuum glass, and at the same time realizing the structural reform and quality improvement of the vacuum glass, especially in ensuring the effective use of the vacuum glass and the absence of foreign matter on the surface.

Claims

1. A splicing component for making vacuum glass (10), characterized in that: The splicing component is a cut-off corner portion of a flat glass on one side of the vacuum glass (10), and is used to be processed separately from the main body portion (100) remaining after the vacuum glass (10) is cut off, and then re-spliced ​​with the main body portion (100) to form a complete vacuum glass (10); The inner surface of the truncated corner portion has a recess (D) for accommodating a getter (7), or the truncated corner portion has a through hole (T) for accommodating a getter (7) and a sealing sheet (P) for sealing the through hole (T); and, A welding material (F) is arranged along the side surfaces of the oblique sides and the bottom edges of the right-angled sides of the truncated corner portion.

2. The splicing component for manufacturing vacuum glass (10) according to claim 1, wherein: The inner surface of the truncated corner portion has a groove (H) or an opening (H') for connecting a pit (D) or a through hole (T) for accommodating a getter (7) with a vacuum layer of a vacuum glass (10).

3. The splicing component for manufacturing vacuum glass (10) according to claim 1 or 2, wherein: A chamfered surface (L) is formed along the upper edge of the bevel of the truncated corner portion, and welding material (F) is arranged on the chamfered surface (L) and at least one of the side surfaces and the bottom edge of the right-angled side.

4. A vacuum glass (10) having a panel partial splicing component, comprising: Main body(100) At least one splicing element according to any one of claims 1 to 3.

5. A method for making vacuum glass, comprising the steps of: A corner cut portion of a single-sided glass panel is cut off as a splicing component, and the splicing portion is processed so as to have the structural features defined in any one of claims 1 to 3; The main body of the vacuum glass without the cut corner portion is manufactured by using the single-sided glass panel with the cut corner portion as a splicing component and another complete single-sided glass panel; Performing a tempering treatment on the main body of the vacuum glass; The tempered main body and the processed corner parts as the splicing parts are sealed and combined and vacuum-extracted at the same time to form a complete vacuum glass.

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