Thermal insulation hollow glass
By using a combination of high-strength metal edge banding and low thermal conductivity resin insulation brackets in insulated glass, the problems of thermal conductivity of the spacer frame and desiccant filling amount are solved, achieving better heat insulation and drying effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LISHENG GLASS TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-23
AI Technical Summary
The existing spacer frame of insulated glass has good thermal conductivity, which affects the thermal insulation performance. At the same time, reducing the volume of the spacer frame affects the amount of desiccant to be filled, resulting in a decrease in the drying effect.
The spacer consists of an edge sealing plate and a heat insulation bracket. The edge sealing plate is made of high-strength metal material, and the heat insulation bracket is made of resin material with low thermal conductivity. A desiccant filling cavity is set in the bracket. The connectors are set at an angle to improve the structural strength. The bracket is composed of a metal inner core and heat insulation resin.
It effectively reduces heat conduction between flat glass panes, maintains good heat insulation, and allows for the filling of more desiccant to maintain the dryness inside the insulated glass.
Smart Images

Figure CN224396328U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass technology, specifically to a heat-insulating insulated glass. Background Technology
[0002] Insulating glass consists of several flat glass panes and a spacer frame placed between the glass panes. The spacer frame creates an inner cavity between the two glass panes. The inner cavity can be filled with inert gas or evacuated. The hollow structure reduces the conduction of heat and sound waves, thus providing sound insulation and heat insulation.
[0003] Although the hollow structure design prevents direct heat and sound conduction between the two panes of glass, the spacer frame placed between them can conduct heat between the two panes. Most existing spacer frames are made of aluminum alloy, and the high thermal conductivity of aluminum alloy can negatively impact the overall thermal insulation performance of the hollow glass. Patent application CN201621396773.7 discloses a door / window with an internal thermal insulation strip in the hollow glass pane. The pane has hollow glass, and an insulation layer is installed inside the hollow glass. The insulation layer includes two opposing spacer frames, which are fixed to the hollow glass pane with butyl adhesive. A first thermal insulation strip is provided between the two spacer frames, which can block heat transfer between the two spacer frames to a certain extent. Although the above technical solution plays a certain role in blocking heat transfer through the first thermal insulation strip with low thermal conductivity, the setting of the first spacer strip significantly reduces the volume of the spacer frame itself. In the existing technology, insulated glass usually needs to place desiccant inside the spacer frame to prevent fogging inside the insulated glass. After the spacer frame volume is reduced, the amount of desiccant that can be carried will also be reduced, which will affect the drying effect inside the insulated glass to some extent. Utility Model Content
[0004] To address the aforementioned issues, this invention provides a heat-insulating insulated glass unit that reduces heat transfer between the two glass panes and essentially does not affect the amount of desiccant filling the spacer frame, thus better ensuring the dryness of the internal gas.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A heat-insulating insulated glass unit includes two flat glass panes and a spacer disposed between the two flat glass panes. A hollow cavity is formed between the two glass panes by the spacer. The spacer includes two edge sealing plates arranged parallel to each other and a heat-insulating bracket disposed between the two edge sealing plates. Each edge sealing plate has two slots on the side facing the heat-insulating bracket. The heat-insulating bracket includes two support horizontal plates arranged perpendicular to the edge sealing plates and a connector connecting the two support horizontal plates. Each side of the support horizontal plate forms a locking head corresponding to the shape of the slots. Each side of the support horizontal plate engages with one of the edge sealing plates. The area surrounded by the two edge sealing plates and the two support horizontal plates forms a filling cavity. A desiccant is disposed in the filling cavity. The support horizontal plate near the hollow cavity has moisture-absorbing holes.
[0007] Furthermore, the connector is a strip-shaped flat plate structure, and the intersection line formed by the connector and the supporting cross plate is parallel to the sealing plate. The connector divides the filling cavity into two cavity units.
[0008] Furthermore, the plane of the connector forms an angle with the edge banding.
[0009] Furthermore, the angle between the plane of the connector and the edge banding is 30~45°.
[0010] Furthermore, a gap is left between the end of the connector that connects to the supporting cross plate and the edge sealing plate.
[0011] Furthermore, the connector is provided with a vent hole connecting the two cavity units.
[0012] Furthermore, the heat insulation bracket is composed of a metal inner core and heat insulation resin covering the surface of the metal inner core.
[0013] Furthermore, the spacer is spaced from the edge of the flat glass to form a filling groove, and the filling groove is filled with sealant.
[0014] Furthermore, the side of the edge sealing plate furthest from the heat insulation bracket is bonded and fixed to the inner side of the flat glass.
[0015] Furthermore, the sealant includes an inner watertight layer bonded to the spacer and the flat glass, and an outer structural layer bonded to the flat glass and the watertight layer.
[0016] The following beneficial effects can be achieved by applying this utility model:
[0017] 1. The spacer of this utility model consists of two edge sealing plates and a heat insulation bracket disposed between the two edge sealing plates. The edge sealing plates are made of metal materials with high physical strength, and the heat insulation bracket is made of resin materials with low thermal conductivity. Under the action of the heat insulation bracket, the heat conduction velocity between the two edge sealing plates is reduced, thereby reducing the heat conduction between the two flat glass panes and achieving a better heat insulation effect. Furthermore, after the heat insulation bracket and the edge sealing plates are assembled, a filling cavity is formed for placing desiccant. Compared with the broken bridge structure of the spacer frame in the prior art, the spacer of this utility model can be filled with more desiccant to better maintain the internal dryness of the insulating glass.
[0018] 2. In some embodiments of this utility model, the connector is set at an angle, so that the connector and the two supporting horizontal plates are not vertically connected. When the hollow glass is subjected to vertical pressure, the connector can resist the bending deformation caused by the pressure on the supporting horizontal plates, thereby improving the structural strength of the heat insulation bracket.
[0019] 3. In some embodiments of this utility model, the heat insulation bracket can be composed of a metal inner core and heat insulation resin covering the surface of the metal inner core, which can both ensure the low thermal conductivity of the heat insulation bracket and improve the structural strength of the heat insulation bracket. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0021] Figure 2 for Figure 1 Schematic diagram of the spacer bar structure;
[0022] Figure 3 This is a schematic diagram of the structure of the heat insulation bracket in another embodiment;
[0023] In the diagram, 1-flat glass, 11-hollow inner cavity, 2-spacer, 21-edge sealing plate, 211-bayonet, 22-heat insulation bracket, 221-supporting cross plate, 2211-clip head, 2212-moisture absorption hole, 222-connector, 2221-ventilation hole, 223-metal inner core, 224-heat insulation resin, 23-filling cavity, 24-desiccant, 3-watertight layer, 4-structural layer. Detailed Implementation
[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model. Example
[0025] Reference Figure 1 and Figure 2 An embodiment of this utility model provides a heat-insulating insulated glass, which includes at least two flat glass panes 1 and a spacer 2 disposed between two adjacent flat glass panes 1. The spacer 2 forms a hollow inner cavity 11 between the two adjacent flat glass panes 1. The hollow inner cavity 11 is filled with an inert gas. The spacer 2 is positioned with a gap from the edge of the flat glass panes 1 and a filling groove is formed in the gap area. The filling groove is sealed from the inside to the outside with a water seal 3 formed by butyl rubber and a structural layer 4 formed by silicone rubber. The water seal 3 has good resistance to water vapor penetration, and the structural layer 4 has good structural strength and weather resistance.
[0026] The flat glass 1 can be made of a single layer of glass or multiple layers of glass. For example, in one embodiment, one flat glass is made of ordinary single-layer glass and the other flat glass is made of double-layer laminated glass. The two flat glass are asymmetrical structures. Obviously, in some embodiments, more flat glass can be provided, such as three flat glass. A spacer strip 2 is provided between every two adjacent flat glass 1, thereby forming a structure containing three layers of flat glass and two hollow cavities.
[0027] The spacer 2 includes two parallel edge-sealing plates 21 and a heat-insulating bracket 22 disposed between the two edge-sealing plates 21. The side of the edge-sealing plate 21 facing the flat glass 1 is bonded and fixed to the flat glass 1 by an adhesive material. The side of the edge-sealing plate facing the heat-insulating bracket is provided with two latches 211. The latches 211 are elongated structures, and their length direction is parallel to one adjacent side of the flat glass. One latch is located relatively close to the hollow inner cavity 11, and the other latch is located relatively close to the filling groove. The heat-insulating bracket 22 includes two parallel support horizontal plates 221 and a connector 222 for connecting the two support horizontal plates 221. The support horizontal plates 221 are perpendicular to the edge-sealing plates. 21. The supporting horizontal plate is a long strip structure. Two sides of the supporting horizontal plate in the width direction each form a clip 2211. The clip 2211 can engage with the clip 211 to fix the supporting horizontal plate to the two edge sealing plates 21. After the edge sealing plates 21 and the heat insulation bracket 22 are assembled, a filling cavity 23 is formed, surrounded by the two edge sealing plates 21 and the two supporting horizontal plates 221. The filling cavity 23 can be filled with desiccant 24, which is used to absorb moisture in the hollow inner cavity 11 and prevent fogging inside the hollow glass. Correspondingly, the supporting horizontal plate 221 near the hollow inner cavity 11 is provided with a moisture-absorbing hole connecting the hollow inner cavity 11 and the filling cavity 23. The connector 222 is connected to the supporting horizontal plate 221. The connectors are connected at an angle of 45° to 60° to form an approximate Z-shaped structure, which helps to improve the bending resistance of the supporting horizontal plate 221. In some embodiments, the connector is a long strip-shaped plate structure with the extension direction consistent with the supporting horizontal plate. In this case, the filling cavity 23 is divided into two cavity units by the connector 222. In order to ensure the gas flow between the two cavity units and improve the moisture absorption effect of the desiccant, vent holes 2221 can be provided on the connector 222. In other embodiments, the connector is a number of spaced columnar structures, and the arrangement direction of the connector is consistent with the extension direction of the supporting horizontal plate. A space for gas flow is formed between adjacent columnar structures. Compared with the two embodiments, when the connectors are connected... When the component is a long, strip-shaped plate structure, the overall physical strength of the heat insulation bracket is relatively high. When the connector is a columnar structure, the overall weight of the heat insulation bracket is relatively light. The choice can be made according to actual needs. It should be noted that the end of the connector 222 that connects to the supporting horizontal plate 221 should have a certain gap with the edge sealing component to ensure that both inner cavity units can be directly connected to the hollow inner cavity through the moisture absorption holes on the supporting horizontal plate. In some embodiments, the edge sealing plate 21 can be made of a metal material with high structural strength, and the heat insulation bracket 22 can be made of a resin material with low thermal conductivity. The low thermal conductivity of the resin material is used to reduce heat transfer between the two edge sealing plates. In other embodiments, refer to... Figure 3The heat insulation bracket 22 can be composed of a metal inner core 223 and a heat insulation resin 224 covering the surface of the metal inner core 223. The metal inner core is used to improve the overall physical strength of the heat insulation bracket, and the covering layer is used to reduce the overall thermal conductivity of the heat insulation bracket.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A type of heat-insulating insulated glass, characterized in that: The device includes two flat glass panes and a spacer between them. A hollow cavity is formed between the two glass panes, constrained by the spacer. The spacer includes two parallel edge-sealing plates and a heat-insulating bracket between the two edge-sealing plates. Each edge-sealing plate has two slots on its side facing the heat-insulating bracket. The heat-insulating bracket includes two support horizontal plates perpendicular to the edge-sealing plates and a connector connecting the two support horizontal plates. Each side of the support horizontal plate forms a locking head corresponding to the shape of the slots. Each side of the support horizontal plate engages with one of the edge-sealing plates. The area enclosed by the two edge-sealing plates and the two support horizontal plates forms a filling cavity containing a desiccant. The support horizontal plates near the hollow cavity have moisture-absorbing holes.
2. The heat-insulating insulated glass according to claim 1, characterized in that: The connector is a strip-shaped flat plate structure. The intersection line formed by the connector and the supporting cross plate is parallel to the sealing plate. The connector divides the filling cavity into two cavity units.
3. The heat-insulating insulated glass according to claim 1, characterized in that: The plane of the connector forms an angle with the edge banding.
4. The heat-insulating insulated glass according to claim 3, characterized in that: The angle between the plane of the connector and the edge banding is 30-45°.
5. The heat-insulating insulated glass according to claim 2, characterized in that: A gap is left between the end of the connector that connects to the supporting cross plate and the edge sealing plate.
6. The heat-insulating insulated glass according to claim 2, characterized in that: The connector is provided with a vent hole that connects the two cavity units.
7. The heat-insulating insulated glass according to claim 1, characterized in that: The heat insulation bracket consists of a metal inner core and heat insulation resin covering the surface of the metal inner core.
8. The heat-insulating insulated glass according to claim 1, characterized in that: The spacer is spaced from the edge of the flat glass to form a filling groove, and the filling groove is filled with sealant.
9. The heat-insulating insulated glass according to claim 1, characterized in that: The side of the edge sealing plate away from the heat insulation bracket is bonded and fixed to the inner side of the flat glass.
10. The heat-insulating insulated glass according to claim 8, characterized in that: The sealant includes an inner watertight layer bonded to the spacer and the flat glass, and an outer structural layer bonded to the flat glass and the watertight layer.