CN102733723B - Efficient and energy-saving hollow film glass - Google Patents

Abstract

The invention discloses efficient and energy-saving hollow film glass. A plastic film bag with the sealed periphery is placed in sealed space formed by two pieces of glass, a tensioning frame is arranged in the plastic film bag, the sealed space is formed by the two pieces of glass and a structure frame sealed between the two pieces of glass, the plastic film bag is fixed in the structure frame in a suspension manner, so that an internal hollow thermal insulating layer consisting of two plastic films is formed, two external hollow thermal insulating layers are formed among the plastic film bag and the two pieces of glass, and the internal hollow thermal insulating layer and the external hollow thermal insulating layers are communicated with each other through ventilating tube nozzles and are communicated with the outside through breather valves and breather tubes according to a ventilating sequence. The efficient and energy-saving hollow film glass has a low U value, optical functions of the films and the glass are set flexibly, and a sealing effect is reliable. Besides, a production and processing process can be simplified, and manufacturing cost is optimized.

Description

A high-efficiency energy-saving hollow film laminated glass

technical field

The invention relates to the field of green building energy saving, in particular to a high-efficiency and energy-saving glass with a hollow film layer for glass doors, windows and curtain wall systems.

Background technique

According to the research results of the Lawrence Berkeley National Laboratory in the United States, it is shown that zero-emission buildings require the U value of the heat transfer coefficient of the energy-saving glass window system to be below 0.57W/m2-K (0.10Btu/h-ft2-℉). For this reason, multiple insulation layers are usually used and filled with inert gas, and one of the hollow insulation layers needs to be realized with a low-emissivity coating (Low-e).

As we all know, many patented technologies are based on the above principles to realize the invention of more efficient and powerful energy-saving glass. In the airtight space formed by two pieces of glass, a non-structural intermediate layer is built, such as glass, film, sunshade, etc. But all inventions need to solve the following problems:

1. The contribution of the added interlayer to improving the overall function of the glass unit is mainly to obtain a greater reduction in the U value and ensure the desired optical properties.

2. The impact of the added intermediate layer on the overall weight and size (thickness) of the glass unit can be controlled to a minimum. If the weight increases, it means that the construction installation cost increases. If the size, especially the thickness, also means that the doors and windows And the need to change the curtain wall structure brings about the increase in the cost of design and processing.

3. The added intermediate layer should provide a more reliable sealing structure for the overall sealing of the glass unit. Usually, the installation of the intermediate layer will lead to the increase of sealing difficulty and the negative factors that the sealing effect is difficult to guarantee.

4. The added intermediate layer will increase the complexity of the overall manufacturing process of the glass unit, and the complexity of the manufacturing process will increase the difficulty of product quality control.

5. The added intermediate layer will increase the overall manufacturing cost of the glass unit. For example, the structure and material of the intermediate layer will increase the cost of components and construction materials.

Taking the triple-glazed double-hollow technology that is currently concerned by the green building industry, the conventional technology of using multiple insulation layers is to add a third piece of glass in the middle of the standard insulating glass. The U value is further reduced by filling inert gas and Low-e glass. However, the increase of the interlayer glass brings a relatively large proportion of weight. At the same time, the length of the sealing seam and the pressure imbalance of the two hollow chambers are increased, thereby accelerating the time of sealing failure.

The interlayer glass of the above-mentioned three-layer double insulating glass is replaced by a plastic film that is lighter, has a Low-e coating or has an optical control function, that is, the technology of hanging a biaxially stretched optical film between two pieces of glass has been developed in the 1990s. age is applied. Although there are fundamental improvements in the overall function, especially in terms of reducing the U value and weight, there are still problems that need to be improved in terms of sealing requirements, processing technology difficulty and manufacturing cost.

Contents of the invention

The present invention provides a high-efficiency energy-saving hollow film laminated glass to solve the technical problems in the known technology, the glass has a lower U value, more flexible configuration of optical functions of the film and glass, and more reliable sealing effect . At the same time, the production process can be simplified and the manufacturing cost can be optimized.

The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: a kind of high-efficiency energy-saving hollow film layer glass, in the sealed space formed by two pieces of glass, a plastic film bag with edge sealing around the built-in, the plastic A tension frame is arranged inside the film bag, and the sealed space is formed by two pieces of glass and a structural frame sealed between them, and the plastic film bag is suspended and fixed in the structural frame, forming a space composed of two pieces of plastic An inner hollow heat insulation layer composed of a film, two outer hollow heat insulation layers are formed between the plastic film bag and the two pieces of glass, and the inner hollow heat insulation layer and the outer hollow heat insulation layer pass through the ventilation nozzle And communicate with the outside world through the breathing valve and the breathing tube according to the order of ventilation, so that the plastic film bag has the function of balancing the internal and external air pressure of the buffer airbag type, the ventilation nozzle is encapsulated on the edge of the plastic film bag, and the breathing valve Fixed on the structural frame, the breathing tube is buried in the sealing structure of the structural frame, one end communicates with the breathing valve, and the other end communicates with the outside world.

The tensioning frame includes four frames, and an angle connector is provided between adjacent frames, and the angle connector is connected to the frame through a sliding joint sleeve, and the two ends of the sliding joint sleeve are respectively inserted into the Installed in the frame and the angle connector, the sliding joint sleeve is provided with an elastic element, and the elastic element is clamped between the sliding joint sleeve and the angle connector.

The structural frame includes two interconnected sealing frames, the two sealing frames are respectively bonded to the insides of the two sheets of glass, the inner sides of the two sealing frames are provided with opposite inclined decorative panels, and the two sealing frames are An accommodating space for the tension frame is formed between the two sealing frames, and a film bag protruding gap is formed between the inclined decorative plates of the two sealing frames.

The inner side of the tensioning frame is provided with a diaphragm boss, and the diaphragm boss is coincidently located in the protruding gap of the film bag, and the tops of the inclined decorative plates of the two sealing frames are provided with stretch film flanges, The stretch film flange is crimped on the tensioning frame, and the tensioning frame and the structural frame cooperate with each other structurally to realize the flattening, tensioning and tightening of the plastic film bag.

The inclined decorative plates of the two sealing frames are symmetrical to each other, and form a film gap with the diaphragm boss, and the two films of the plastic film bag separate the internal space into three hollow heat insulation layers inside and outside, and The volumes of the inner and outer hollow heat insulation layers are equal.

The two sealing frames are connected by a connecting spacer, a bandage groove is arranged on the outside of the frame, and a boss adapted to the bandage groove is arranged on the inner side of the connecting spacer.

Welding the edge sealing of the plastic film bag on the slider, a chute is arranged on the structural frame, and the slider is installed in the chute.

A tension structure is provided on the frame.

A continuous sealing tape is wrapped around the outer periphery of the structural frame to form the first sealing layer, and the structural sealant on the sealing tape is filled between the two pieces of glass to form the The second sealing layer described above.

The plastic film bag is formed by superimposing two biaxially stretched plastic films and sealing them along the periphery, and there are fractures at the top and bottom corners of the edge sealing of the plastic film bag. The trachea nozzle is packaged at the fracture.

The invention has the advantages and positive effects: by adding a film hollow formed by a plastic film bag to the original hollow layer of the glass, the new product invented achieves a three-layer heat insulation space. If the standard hollow glass preparation standard of filling inert gas and Low-e coating is used in one layer, the U value of the hollow film laminated glass of the present invention can be reduced to the specified value or more of the international zero emission standard Small. By adding a new structure of a new multi-functional hollow film layer and the realization of its air pressure balance system, it has the breathing function of the internal buffer air bag, making the operation of the double-channel seal more reliable. And thus the simplification of the processing technology enables the production cost to be optimized to a greater extent. The present invention can improve the overall function to a greater extent, especially the U value can be reduced to the standard of zero discharge. At the same time, problems such as weight, size and sealing structure can be solved more reasonably. And through the preprocessing of a separate production line for film bags, the manufacturing process and cost issues can be properly optimized.

Description of drawings

Fig. 1 is a partial structural sectional view of the present invention;

Fig. 2 is a sectional view of the overall structure of the present invention;

Fig. 3 is the schematic diagram that plastic film bag of the present invention cooperates with tensioning frame;

Fig. 4-a～Fig. 4-d among Fig. 4 are the schematic diagrams of 4 different suspension modes of the plastic film bag of the present invention;

Fig. 5 is a schematic diagram of the connection between the ventilation nozzle and the breathing balance system.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Figures 1 to 5, a kind of high-efficiency energy-saving hollow film layer glass. In the sealed space formed by two pieces of glass 1, a plastic film bag 2 with sealing edges is built in to form an inner hollow composed of two pieces of plastic film. Heat insulation layer, two outer hollow heat insulation layers are formed between the plastic film bag 2 and the two pieces of glass 1, the inner hollow heat insulation layer and the outer hollow heat insulation layer pass through the ventilation nozzle 10.2 and pass through the breathing valve 10.1 and The breathing tube 10 communicates with the outside world.

A tensioning frame 4 is installed inside the plastic film bag 2, and the tensioning frame is suspended and fixed in the structural frame 3, and the structural frame 3 is sealed and fixed between two pieces of glass 1.

The tensioning frame 4 includes four frames, and an angle connector 4.3 is arranged between adjacent frames, and the angle connector 4.3 is connected to the frame through a sliding joint sleeve 4.5, and the two ends of the sliding joint sleeve 4.5 are respectively inserted in the frame and the connecting frame. Inside the angler 4.3, the sliding joint sleeve 4.5 is provided with an elastic element, and the elastic element is clamped between the sliding joint sleeve 4.5 and the angler 4.3.

The structural frame 3 includes two interconnected sealing frames, the two sealing frames are respectively bonded to the insides of the two pieces of glass 1, and the inner sides of the two sealing frames are provided with relative inclined decorative panels 3.2, and there is formed between the two sealing frames. In the accommodating space of the tensioning frame 4, a film bag protruding gap is formed between the inclined decorative plates 3.2 of the two sealing frames.

The inner side of tensioning frame 4 is provided with diaphragm boss 4.1, and diaphragm boss 4.1 is located in the film bag extension gap coincidently, and the top of the inclined decorative plate of two sealing frames is provided with stretch film flange 3.1, and stretch film flange 3.1 Crimp on the tension frame 3.

The inclined decorative panels 3.2 of the two sealing frames are symmetrical to each other, and form a film gap with the diaphragm boss 4.1, and the two films of the plastic film bag separate the internal space into three hollow heat insulation layers inside and outside, and the inside and outside hollow heat insulation Layers are equal in volume.

A continuous sealing tape 7 is fully wrapped around the outer periphery of the structural frame 3 , and a structural sealant 8 on the sealing tape 7 is filled between two pieces of glass 1 .

A ventilating nozzle 10.2 is provided at the seam of the corner of the edge sealing end of the film bag, and the inner hollow heat insulation layer and the outer hollow heat insulating layer pass through the ventilating nozzle 10.2 and pass through the breathing valve 10.1 and the breathing tube 10 in order to communicate with the outside world. Interconnection makes the plastic film bag have the function of balancing the internal and external air pressure of the buffer airbag type.

The breathing tube 10 is connected with the breathing valve 10.1, and the ventilation nozzle 10.2 is respectively connected with the inner hollow insulation layer b and the two outer hollow insulation layers a, and the breathing valve 10.1 is fixed on the structural frame 3.

The plastic film bag 2 is formed by superimposing two biaxially stretched plastic films and sealing them along the periphery, and is provided with fractures at the top and bottom corners of the plastic film bag edge sealing, and the ventilation nozzle 10.2 is packaged in at the fracture.

Below in conjunction with each figure, the present invention is described in further detail:

As shown in Figure 1 and Figure 2, between the two pieces of glass 1, the original space similar to the standard hollow glass structure is divided into three heat-insulating spaces by adding a ventilation film bag. Structurally, the film bag insulation is similar to the interglazing of a standard double hollow (triple-glazed unit with two hollows). However, due to the use of plastic film edge sealing to form a sealed bag-like structure, it can be used as a new hollow layer made of film. Compared with ordinary insulating glass, the weight and thickness are minimally increased. Compared with the three-layer double insulating glass, the weight is reduced to the greatest extent.

The processing and sealing of the ventilation film bag can be pre-processed through an independent production line. The function of the film can be selected according to the requirements of the architect, such as Low-e coating, anti-UV, optical control, etc.

Two biaxially stretched plastic films are cut, overlapped and edge-sealed according to the corresponding size of the glass. The sealing of the film bag is to seal the periphery of two films by welding, adhesive or heat sealing edge technology to form a closed bag-like structure. The mature industrialized edge banding technology provides a guarantee for reducing the difficulty and cost of processing.

The inner hollow heat insulation layer is formed by superimposing two biaxially stretched plastic films and sealing them along the periphery by welding, adhesive bonding or heat sealing edge technology, hereinafter referred to as "hollow film".

As shown in Figure 3, the edge seam joint that reaches a certain strength and has a certain width is called film bag edge sealing 2.1. In order to avoid stress concentration at the end corners, corner breaking treatment is performed and the ventilation nozzle 10.2 is packaged. As shown in Figure 2, the film bag is an independent sealed structure. The airtight space formed in the film bag is the inner hollow heat insulation layer, which is called the film bag hollow b; the space formed by the film bag and the glass is the outer hollow heat insulation layer, which is called glass hollow a. The outer hollow heat insulation layer is divided into inner and outer two layers of heat insulation hollow by the film bag.

As shown in Fig. 5, the ventilation nozzle 10.2 is encapsulated at a specific corner joint. The ventilation nozzle is a plastic joint with a certain inner diameter requirement, and the geometric shape of the outer end surface should be easy to seal with the fracture of the film bag, which can be sealed by heat or adhesive. The ventilation nozzle on the bottom side communicates with the glass hollow outside the film bag to balance the air pressure between the glass hollow and the film bag hollow. The ventilation nozzle on the top side communicates with the external environment of the glass by connecting the breathing valve 10.1 fixed on the structural frame and the breathing tube buried in the structural sealant layer to balance the air pressure in the inner and outer chambers of the glass. Through the ventilation nozzles in opposite directions encapsulated at the bottom and top respectively, the membrane bag in the middle of the built-in suspension has the function of "cushion air bag".

The cushioning airbag function of the film bag depends on the location of the Low-e coating. When the inner surface of the glass has a Low-e coating, the ventilation nozzle of the film bag is hollowed out with the glass for ventilation, and the ventilation nozzle communicates with the external environment of the glass unit through the breathing tube. That is, when the pressure in the glass cavity is high, the membrane bag is used to exhaust and decompress. On the contrary, air is inflated into the glass hollow through the membrane bag to maintain pressure balance. When the inside of the diaphragm is coated with a low-e coating, the ventilation process is reversed to the above.

In the cavity formed by two pieces of glass, the film bag must be kept flat and have a certain tension to ensure the normal realization of the overall optical function of the glass unit. The present invention can easily realize the tightening, flattening and fastening of the surface of the thin bag through the tensioning frame built in the film bag and the combined action of the structural frame, thereby overcoming the defects of the existing intermediate hanging film technology. For example, the secondary heat treatment stretch film technology using the thermal shrinkage of the film and the stretch film technology using the winding spring both have contradictions between the stretch film and the sealing structure and the complicated processing technology in order to eliminate stress lines.

A profile frame with a built-in tensioning mechanism at the end corner and stretches the hollow membrane bag around, hereinafter referred to as "tensioning frame". The tension frame of the present invention can be pre-assembled through an independent production line. As shown in Figure 3, the assembly of the tension frame is mainly to connect the four frames through the corner connector 4.3, which must match the size of the surrounding edges. The tensioning mechanism is mainly to ensure that the expansion and contraction displacement of the angle connector along the direction parallel to the glass surface drives the entire tensioning frame to move outwards and expand, so that the film bag is stretched. At the same time, the hollow height of the film bag determined by the thickness of the tension frame is formed, and the surfaces of the two films are under a certain surface tension.

The inner cavity 4.2 of the tensioning frame can be filled with a certain amount of desiccant 9, and the desiccant uses 3A molecular sieve to ensure that the gas filled in the film bag reaches a certain dew point. Fill the bag with inert gas through the ventilation nozzle at the end corner to ensure the dew point at the initial installation and the drying effect during operation.

The stretching of the film bag mainly depends on the corner connectors at the four end corners. The corner connection of the corner connector is a groove and a curved surface structure that matches the packaging of the ventilation nozzle. In order to ensure the tightness of the edge sealing and avoid the stress lines on the corners of the film caused by deformation and displacement. The two ends of the connector are respectively provided with joint sleeves 4.5 which can be freely expanded and contracted. The joint sleeves have built-in elastic elements with a certain elasticity, and springs 4.4 can be selected. In order to facilitate the connection and fixation with the straight section of the tensioning frame, an embedded reducing joint is provided. After the edge sealing of the film bag is completed, the compression spring in the joint sleeve is in working condition, and it is in the middle of the compression stroke.

The elastic force of the compression spring in the joint sleeve, on the one hand, considers the tension force required for the flattening of the film bag, and on the other hand, also considers the weight of the tension frame itself. For glass units used in the vertical direction, special attention should be paid to the influence of the weight of the tension frame filled with desiccant. In the same way, the strength of the edge sealing of the film bag must consider the weight of the tension frame after filling the desiccant.

Because the film bag is edge-sealed according to a certain size, the shape of the film bag is basically fixed, and the tension frame in the bag is almost in a state of free expansion. In order to keep the film bag installed in the glass cavity without bending, twisting and other deformations and maintain a flat and certain surface tension after installation, it is necessary for the film bag to maintain the basic shape and offset the internal stress of the film through uniform deformation. Ripples or wrinkles caused by concentration. By cooperating with the structural frame, the tension frame of the membrane bag is suspended and fixed in the cavity of the structural frame. See Figure 1, which shows the basic suspension fixing method, the diaphragm boss 4.1 of the tension frame is closely matched with the stretch film flange 3.1 of the structural frame. The stretched film flange 3.1 presses on the inner arc surface of the tensioning frame, which produces a certain outward thrust on the tensioning frame, and because the film bag is stretched tightly, its sealing edge produces an inward thrust on the tensioning frame, two effects The force is balanced, so that the surface of the film bag is flat. In Fig. 4, several different suspension fixing methods are shown.

Because the film bag is edge-sealed according to a certain size, the shape of the film bag is basically fixed, and the tension frame in the bag is almost in a state of free expansion. In order to keep the film bag installed in the glass cavity without bending, twisting and other deformations and maintain a flat and certain surface tension after installation, it is necessary for the film bag to maintain the basic shape and offset the internal stress of the film through uniform deformation. Ripples or wrinkles caused by concentration. By cooperating with the structural frame, the tension frame of the membrane bag is suspended and fixed in the cavity of the structural frame. See Figure 1, which shows the basic suspension fixing method, the diaphragm boss 4.1 of the tension frame is closely matched with the stretch film flange 3.1 of the structural frame. The stretched film flange 3.1 is pressed on the inner arc surface of the tension frame, which produces a certain outward thrust on the tension frame, and because the film bag is stretched tightly, its sealing edge produces an inward thrust on the tension frame, two effects The force is balanced, so that the surface of the film bag is flat. In Fig. 4, four kinds of film bag flattening structures are shown, all of which are located at the peripheral part of the plastic film bag, showing four different suspension fixing methods, all of which are to connect the hollow film bag tightly, flattened and firmly The sealing structure can freely change the combination of related connection structures and manufacturing processes according to the suspension and fixing methods.

Figure 4-a is one of the tension enhancement methods. The outer side of the tension frame frame is set as a plane, and a tension end plate is arranged on the outer side of the outer surface, and the tension end plate is clamped between the outer surface of the frame. Elastic element a. The tension frame is modified to have transverse tension end plates on the outside. In addition to the tight fit between the diaphragm boss of the tension frame and the film flange of the structural frame, the expansion function of the outer side of the film bag is increased, so that the film bag is further tightened and the stress lines caused by temperature changes and deformation are offset. However, the processing complexity of the tension frame is increased.

Figure 4-b is another tension-enhanced method. Side tension plates are hinged on the left and right sides of the tension frame frame, and elastic elements b are clamped between the two opposite side tension plates. Element b is connected to the frame. The tension frame is modified to have longitudinal tension end plates on the outside. However, the processing complexity of the tensioning frame is also increased.

The tension structure on the frame shown in Fig. 4-a and Fig. 4-b can better realize the shaping and positioning of the plastic film bag.

Figure 4-c shows the improved structure of suspension fixation. A stretch film groove is set on the outside of the frame of the tension frame, and a boss matching the stretch film groove is set on the inside of the connecting spacer of the structural frame. The outer side of the tensioning frame is improved into a film groove, and the connecting spacer of the structural frame is improved with a tensioning boss. In addition to the close fit between the diaphragm bosses of the tension frame and the film flanges of the structural frame, the functions of positioning, shaping and film stretching of the bosses connecting the spacers are added. In the same way, the flange of the stretch film presses down on the inner arc of the tensioning frame, which produces a certain outward thrust on the tensioning frame, while the film bag generates an inward thrust on the tensioning frame due to the tightness of the boss connecting the spacer. Push and tighten the film further. This method is mainly due to the tight fit between the tension frame and the connecting spacer, while the stretch film flange is more responsible for eliminating stress lines, so that the surface of the film bag is smooth.

Figure 4-d is a practical improved version of floating fixation. The edge sealing of plastic film bags is welded on the slider, and a chute is provided on the structural frame, and the slider is installed in the chute. Fasten the membrane bag edges directly to the structural frame with welded slides. Compared with the basic method, the shaping of the film bag is simpler. The stretch film flange of the structural frame and the slider groove of the structural frame form a tension frame cavity around the edge of the film bag, so that the tension frame in the cavity can be more freely expanded and displaced with temperature changes and deformations. The tensile force on the stretch film is always maintained uniform and constant to counteract the stress marks that occur.

Fig. 4-c and Fig. 4-d show two kinds of matching structures of the tensioning frame and the structural frame, and each matching structure realizes shaping and positioning of the plastic film bag.

To sum up, the inner side of the tensioning frame is the diaphragm boss 4.1, which is in the shape of a rectangular boss, and the width of the boss determines the space size of the inflatable membrane bag. A certain gap is formed between the two sides of the boss and the stretch film flange of the structural frame to ensure that the side of the boss does not contact the film surface and that the film penetrates flatly into the glass cavity.

The profile of the tensioning frame 4 is elliptical, and the material is selected from materials with heat transfer coefficient and thermal expansion coefficient lower than or similar to glass. Since the edge sealing around the film bag and the film at the flange of the stretch film are in close contact with the surface of the tension frame, the contact surface is spherical and smooth, thereby reducing friction to ensure the freedom of expansion and contraction of the film and avoiding any damage to the stretch film.

On the inner side of each piece of glass, a solid profile frame is bonded with structural tape along the edge of the glass, referred to as "structural frame". As shown in Figure 2, its function is to connect two pieces of glass, which is called a whole insulating glass, and at the same time, suspend and fix the film bag in its inner cavity and make it tight and flat.

The profile frame is two separate profiles symmetrical to each other with respect to the two pieces of glass, and the material is selected from a material whose heat transfer coefficient and thermal expansion coefficient are lower than or similar to glass. It can be connected as a whole by connecting spacers 5. After the two structural frames are firmly connected, the sealing end plate 5.2 and the tail end of the structural frame must be flat and on the same plane, and form a relatively tight closed-loop frame together with the sealing tape 7 pasted thereon.

As shown in Fig. 1, the structural adhesive tape 6 has a quick pasting effect, and the bonding strength is sufficient to bear the structural connection strength of the glass unit, and has mechanical strength against stretching and shearing force. The more important role is to ensure that the deformation and displacement of the structural frame are sufficiently small to a certain extent.

After the structural frame is combined, an appropriate space outline that can "hold" the tension frame is formed inside. The other side relative to the sealing side is an end plate with a decorative effect, called a decorative plate 3.2. The decorative plate has a certain inclination angle and cooperates with the inner decorative surface of the tension frame to form an integral inner decorative surface with two diaphragms extending out of the gap. The top of the decorative plate is the stretch film flange 3.1. After the pieces are combined, the tension that presses the film downward is generated on the inner arc surface of the tension frame, so that the film is tightened and the stress lines caused by the force are eliminated.

The outer edges of the structural frame are connected together through connecting spacers or directly through the tenon 3.3, and support the space height inside the two pieces of glass, which is the overall height of the inner hollow of the glass unit, that is, the overall net thickness of the glass unit. The vertical height of the decorative panel of the structural frame determines the height of the hollow formed by the film and glass. The two decorative panels on the inside of the structural frame form the middle seam outlet that the film bag protrudes from. The width of the outlet is equal to the vertical height of the two decorative panels, so that the two films of the plastic film bag separate the inner space into three hollow heat insulating layers inside and outside, and the volumes of the inner and outer hollow heat insulating layers are equal.

As shown in Fig. 4-c, connecting the upper and lower structural frames is the connecting spacer 5, and the side adjacent to the film bag is the spacer boss. The boss is embedded in the groove of the tensioning frame, and the two cooperate to position and shape the film bag. At the same time, by pushing the edge sealing of the film bag into the groove of the tensioning frame, it has the function of secondary tensioning of the film bag.

In Figure 4-d, the structural frames are directly connected by tenons. The top of the tenon end on one side has a card groove for sealing the edge of the fixed film bag. A slide block with good welding material compatible with the film is installed in the card slot, which is used to bond the edge of the film bag to the slide block by hot-melt welding. The fixing of the welding slider produces a certain pulling force on the film bag. After the tension frame is installed and the assembled membrane bag is fixed on the slider on the structural frame, a certain surface tension is formed on the surface of the membrane bag. Inside the film bag, the film bag is stretched by the tension frame, and at the same time, the film bag is further stretched and flattened by pressing down the stretch film flange. Finally, the film bag is suspended in the middle of the two pieces of glass like a flat insulating glass.

The external sealing structure of the glass unit of the present invention is mainly realized by two sealing structures as shown in FIG. 2 . The first seal is to wind and paste butyl rubber sealing tape 7 on the outer surface of the structural frame. The second sealing is to inject structural sealant 8 into the space formed by the two pieces of glass and the butyl sealant tape 7 .

In the double-channel sealed structure, a breather valve 10.1 connected to the breather tube in the frame is installed at the corner of the outside of the structure frame to form a balance system that can breathe and ensure the dew point in the cavity, so as to ensure the dew point in the glass cavity. at a very low level. Another purpose of doing this is to balance the internal and external pressure as much as possible to bring better surface smoothness, that is, a mirror effect.

Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art Under the enlightenment of the present invention, people can also make many forms without departing from the purpose of the present invention and the scope of protection of the claims, and these all belong to the protection scope of the present invention.

Claims (10)

1. A kind of high-efficiency energy-saving hollow film laminated glass, it is characterized in that, in the sealed space that two pieces of glass form, the plastic film bag of a surrounding edge sealing is built-in, and described plastic film bag is provided with tensioning frame, and described sealing The space is formed by two pieces of glass and a structural frame sealed between them. The plastic film bag is suspended and fixed in the structural frame to form an inner hollow insulation layer composed of two pieces of plastic film. Two outer hollow heat insulation layers are formed between the film bag and the two pieces of glass, the inner hollow heat insulation layer and the outer hollow heat insulation layer pass through the ventilation nozzle and pass through the breathing valve and the breathing tube and The outside world is connected, so that the plastic film bag has the function of balancing the internal and external air pressure of the buffer airbag type, the ventilation nozzle is packaged on the edge of the plastic film bag, the breathing valve is fixed on the structural frame, and the breathing tube Buried in the sealing structure of the structural frame, one end communicates with the breathing valve, and the other end communicates with the outside world. 2. The high-efficiency energy-saving hollow film-layered glass according to claim 1, characterized in that, the tension frame includes four frames, corner connectors are provided between adjacent frames, and the corner connectors slide The joint sleeve is connected to the frame, and the two ends of the sliding joint sleeve are respectively inserted into the frame and the angle connector. The sliding joint sleeve is provided with an elastic element, and the elastic element clamps Between the sliding joint bushing and the angle connector. 3. The high-efficiency energy-saving hollow film-layered glass according to claim 2, wherein the structural frame comprises two interconnected sealing frames, and the two sealing frames are respectively bonded to the inner sides of the two sheets of glass The inner sides of the two sealing frames are provided with opposite inclined decorative plates, the accommodation space for the tension frame is formed between the two sealing frames, and the inclined decorative plates of the two sealing frames are formed between The membrane bag protrudes through the gap. 4. The high-efficiency energy-saving hollow film-layered glass according to claim 3, characterized in that, the inner side of the tension frame is provided with a diaphragm boss, and the diaphragm boss is coincidently located in the protruding gap of the film bag Inside, the tops of the inclined decorative plates of the two sealing frames are provided with stretch film flanges, and the stretch film flanges are crimped on the tension frame, and the tension frame and the structural frame are structurally mutually Cooperate to realize the flattening, tightening and tightening of the plastic film bag. 5. The high-efficiency energy-saving hollow film-layered glass according to claim 4, characterized in that, the inclined decorative plates of the two sealing frames are symmetrical to each other, and form a film gap with the diaphragm boss, and the plastic The two films of the film bag separate the inner space into three hollow heat insulating layers inside and outside, and the volumes of the inner and outer hollow heat insulating layers are equal. 6. The high-efficiency energy-saving hollow film-layered glass according to claim 4, characterized in that, the two sealing frames are connected by a connecting spacer, a stretch film groove is set on the outside of the frame, and a film groove is arranged on the connecting spacer A boss adapted to the bandage groove is arranged on the inner side. 7. The high-efficiency energy-saving hollow film-layered glass according to claim 4, characterized in that, the plastic film bag is edge-sealed and welded on the slider, a chute is provided on the structural frame, and the slider is mounted on the inside the chute. 8. The high-efficiency energy-saving hollow film-layer glass according to claim 4, characterized in that a tension structure is provided on the frame. 9. The high-efficiency energy-saving hollow film-layer glass according to claim 1, characterized in that, the outer periphery of the structural frame is fully wrapped with a continuous sealing tape to form a first sealing layer, between the two pieces of glass The space is filled with structural sealant on the sealing tape to form a second sealing layer. 10. The high-efficiency energy-saving hollow film-layered glass according to claim 1, characterized in that, the plastic film bag is formed by overlapping two biaxially stretched plastic films and sealing them along the periphery. Fractures are arranged at the corners of the top and bottom of the edge sealing of the plastic film bag, and the ventilation nozzles are packaged at the fractures.