Thermal insulation and heat retention profile

Abstract

This utility model discloses a thermal insulation profile, which is applied to casement, rotating, sliding, or folding windows and doors. The profile includes an outer profile body and an inner profile body. The outer and inner profile bodies are connected by a first thermal insulation structure. The outer profile body has extensions on both sides of its outer end. A first thermal insulation layer is integrally co-extruded on both side walls of the outer profile and the back of the extensions. This utility model connects the outer panel and the outer profile through the first thermal insulation structure and connects the outer profile and the inner profile body through the second thermal insulation structure, forming multiple thermal resistance barriers. Combined with the co-extruded first thermal insulation layer on both sides, it effectively blocks the heat conduction path, giving the window and door profile excellent thermal insulation properties. The increased thermal insulation cavity significantly improves the sound insulation performance of the windows and doors.

Description

Technical Field

[0001] This utility model relates to the field of building energy conservation technology, and in particular to a heat insulation and heat-insulating profile. Background Technology

[0002] Building doors and windows are mainly composed of frame, mullion, or sash profiles and other major load-bearing structural members. They are an important part of the building envelope, and in addition to meeting various functional and performance requirements, they also play a crucial role in energy conservation. Currently, existing aluminum alloy or thermally insulated profiles are insufficient to meet the sound insulation, thermal insulation, and heat insulation requirements of high-performance doors and windows and passive house doors and windows; therefore, aluminum-plastic co-extruded profiles have emerged as a solution.

[0003] There are two main types of existing aluminum-plastic co-extruded profiles: one type uses a co-extrusion method to wrap an integral aluminum liner profile (including thermally broken or non-thermally broken profiles) inside a plastic profile, commonly known as a fully enclosed type, such as the "ultra-low consumption multi-thermally broken thermally insulated aluminum-plastic co-extruded filling and composite profile" disclosed in CN109209144 B. Its disadvantages are: the profile's interior and exterior colors are white or entirely colored, resulting in insufficient practicality and aesthetics, failing to meet the needs of personalized engineering projects. Furthermore, due to the poor weather resistance of the PVC co-extruded layer and long-term outdoor exposure, it is prone to fading, brittleness, and cracking, affecting its service life. Fully enclosed aluminum-plastic co-extruded profile doors and windows require corner milling of the aluminum liner and corner cleaning after welding, which is more complex than the assembly process of aluminum alloy doors and windows. It is much more complicated, and the corners affect the aesthetics; another type is the aluminum-plastic co-extruded profile with thermal break structure, in which the indoor profile is a thermally insulated aluminum-plastic co-extruded profile and the outdoor profile is an aluminum alloy profile, commonly known as semi-enclosed type, such as the "low-consumption thermally broken aluminum-plastic co-extruded composite profile for building doors and windows" disclosed in CN110067474B. Its disadvantage is that the aluminum alloy profile with high thermal conductivity on the outdoor part does not take thermal insulation measures, and the heat from the outside will continuously penetrate into the middle of the door and window, which significantly reduces the thermal insulation performance of the door and window.

[0004] Therefore, it is necessary to provide a heat-insulating profile to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a heat-insulating profile.

[0006] The technical solution of this utility model is: a heat-insulating profile, applied to casement-rotating doors and windows, sliding doors and windows, or folding doors and windows, comprising an outer profile body and an inner profile body; the outer profile body and the inner profile body are connected by a first heat-insulating structure; the outer profile body has extensions on both sides of its outer end; the two side walls of the outer profile and the back of the extensions are integrally co-extruded with a first heat-insulating layer.

[0007] A second insulation layer is co-extruded on both sides of the inner profile body.

[0008] The inner profile body includes an inner profile and an inner panel; the inner profile and the inner panel are connected by a second thermal insulation structure; a second insulation layer covering the second thermal insulation structure is co-extruded on both sides of the inner profile.

[0009] A second insulation layer is co-extruded around the outer periphery of the inner profile body.

[0010] The inner profile body includes an inner profile and an inner panel; the inner profile and the inner panel are connected by a second thermal insulation structure; a second insulation layer covering the second thermal insulation structure is co-extruded around the inner profile and the inner panel.

[0011] The inner profile body has at least two chambers from the outside to the inside, wherein the outer chamber is a corner assembly chamber.

[0012] The first thermal insulation structure includes at least two first thermal insulation strips; the first thermal insulation strips, the inner profile body and the outer profile body form a first thermal insulation cavity; the first thermal insulation cavity is filled with a first thermal insulation filler.

[0013] The second thermal insulation structure includes at least two second thermal insulation strips; a second thermal insulation cavity is formed between the second thermal insulation strips, the inner panel, and the inner profile; the second thermal insulation cavity is filled with a second thermal insulation filler.

[0014] A method for preparing a heat-insulating and heat-resistant window profile includes the following steps:

[0015] S1: Prepare the outer profile body, and co-extrude the first insulation layer on both sides of the outer profile body;

[0016] S2: Construct functional slots on the first insulation layer;

[0017] S3: Prepare the inner profile body, including the following steps:

[0018] a1: Select a suitable inner profile body according to the required K value; the inner profile body has two structures, including a thermal break structure and a non-thermal break structure; the thermal break structure includes an inner profile and an inner panel; the inner profile and the inner panel are connected by a second thermal insulation structure;

[0019] a2: Select whether to co-extrude a second insulation layer on the outside of the inner profile body according to the required K value;

[0020] a3: If a second insulation layer is co-extruded on the outside of the inner profile body, then a functional groove is constructed on the second insulation layer.

[0021] S4: Connect the outer profile body and the inner profile body through the first thermal insulation strip, and fill the second thermal insulation cavity formed by the inner profile body, the outer profile body and the second thermal insulation strip with the first thermal insulation filler; and by changing the width of the second thermal insulation strip and the first thermal insulation filler, thermal insulation and insulated door and window profiles with different K values ​​can be combined.

[0022] The co-extrusion of the second insulation layer in S3a2 includes co-extruding the second insulation layer (6) on both sides of the inner profile body or co-extruding the second insulation layer on the outside of the inner profile body.

[0023] The above-mentioned technical solution has the following beneficial effects: (1) The present invention connects the outer panel and the outer profile through the first heat insulation structure and connects the outer profile and the inner profile body through the second heat insulation structure, forming multiple thermal resistance barriers. Combined with the first heat insulation layer co-extruded on both sides, it effectively blocks the heat conduction path, so that the door and window profile has good heat insulation and heat insulation properties. The increase of the heat insulation cavity can significantly improve the sound insulation performance of the door and window. In addition, the inner profile body and the outer profile body of the present invention have multiple selection methods, and the setting method of the second heat insulation layer on the outer side of the inner profile body is also diversified. By increasing or decreasing the width of the second heat insulation strip and the second heat insulation cavity heat insulation material, different K values ​​or U values ​​of heat insulation and heat insulation doors and windows can be matched according to actual needs, which has a wider range of applications, meets the personalized needs of engineering projects, and reduces costs.

[0024] (2) This utility model has an extremely low heat transfer coefficient, which can block the heat from the outside as much as possible at the outermost or innermost edge of the effective sealing structure of the window. It corrects the drawback of the heat insulation cavity being set in the middle of the window in the background technology, which affects the heat insulation performance. It can effectively prevent the heat from the outside from seeping in or dissipating through the window, reduce the exchange of heat between the inside and outside, reduce the energy consumption for heating and cooling, avoid heat loss caused by heat transfer, help maintain a stable indoor temperature, and meet the requirements of high-quality green building low-energy windows and various performance requirements. Attached Figure Description

[0025] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0028] Figure 3 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0029] Figure 4 This is a structural schematic diagram of Embodiment 4 of the present invention.

[0030] Figure 5 This is a structural schematic diagram of Embodiment 5 of the present invention.

[0031] Figure 6 This is a flowchart illustrating the molding process of the inner profile body and the outer profile body of this utility model.

[0032] The labels in the attached diagram are:

[0033] Outer profile body 1, inner profile body 2, inner profile 2-1, inner panel 2-2, first thermal insulation structure 3, first thermal insulation strip 3-1, first thermal insulation filler 3-2, first thermal insulation layer 4, second thermal insulation structure 5, second thermal insulation strip 5-1, second thermal insulation filler 5-2, second thermal insulation layer 6. Detailed Implementation

[0034] (Example 1)

[0035] See Figure 1 This embodiment of a thermal insulation profile is applied to casement-rotating doors and windows, sliding doors and windows, or folding doors and windows. It includes an outer profile body 1 and an inner profile body 2. The outer profile body 1 and the inner profile body 2 are connected by a first thermal insulation structure 3. The outer profile body 1 has extensions on both sides of its outer end. The two side walls of the outer profile and the back of the extensions are integrally co-extruded with a first thermal insulation layer 4.

[0036] Furthermore, the inner profile body 2 has at least two chambers from the outside to the inside, wherein the outer chamber is a corner assembly chamber.

[0037] Furthermore, the first heat insulation structure 3 includes at least two first heat insulation strips 3-1; the first heat insulation strips 3-1, the inner profile body 2 and the outer profile body 1 form a first heat insulation cavity, the thickness of the first heat insulation cavity is preferably 9 to 14.8 mm; the first heat insulation cavity is filled with a first thermal insulation filler 3-2, preferably a nylon I-type strip, the notch formed after combination is equivalent to a dovetail groove, thereby facilitating the filling and engagement of the PVC co-extruded layer with the aluminum profile wall.

[0038] (Example 2)

[0039] See Figure 2 This embodiment is basically the same as embodiment 1, except that: the inner profile body 2 of this embodiment includes an inner profile 2-1 and an inner plate 2-2; the inner profile 2-1 and the inner plate 2-2 are connected by a second heat insulation structure 5; a second insulation layer 6 covering the second heat insulation structure 5 is co-extruded on both sides of the inner profile 2-1; the first insulation layer 4 and the second insulation layer 6 are both made of PVC micro-foamed material, and the thickness of the PVC micro-foamed material on the visible or non-visible surface is set according to the relevant standard JG / T437.

[0040] Furthermore, the inner walls of the outer profile body 1 and the inner profile 2-1 are provided with dovetail grooves, and the width, depth and number of dovetail grooves are set according to the relevant standard JG / T437.

[0041] Furthermore, the second heat insulation structure 5 includes at least two second heat insulation strips 5-1; a second heat insulation cavity is formed between the second heat insulation strips 5-1, the inner plate 2-2 and the inner profile 2-1, and the thickness of the second heat insulation cavity is preferably 9 to 14.8 mm; the second heat insulation cavity is filled with a second heat insulation filler 5-2.

[0042] (Example 3)

[0043] See Figure 3 This embodiment is basically the same as embodiment 1, except that: the inner profile body 2 in this embodiment has a second insulation layer 6 co-extruded on both sides.

[0044] (Example 4)

[0045] See Figure 4 This embodiment is basically the same as embodiment 1, except that a second insulation layer 6 is co-extruded on the periphery of the inner profile body 2.

[0046] (Example 5)

[0047] See Figure 5 This embodiment is basically the same as embodiment 1, except that: the inner profile body 2 in this embodiment includes an inner profile 2-1 and an inner plate 2-2; the inner profile 2-1 and the inner plate 2-2 are connected by a second heat insulation structure 5; a second heat insulation layer 6 covering the second heat insulation structure 5 is co-extruded around the inner profile 2-1 and the inner plate 2-2.

[0048] (Example 6)

[0049] A method for preparing a heat-insulating and heat-resistant window profile includes the following steps:

[0050] S1: Prepare the outer profile body 1, and co-extrude the first insulation layer 4 on both sides of the outer profile body 1;

[0051] S2: Construct functional slots on the first insulation layer 4;

[0052] S3: Prepare the inner profile body 2, including the following steps:

[0053] a1: Select a suitable inner profile body 2 according to the required K value; the inner profile body 2 has two structures, including a thermal break structure and a non-thermal break structure; the thermal break structure includes an inner profile 2-1 and an inner panel 2-2; the inner profile 2-1 and the inner panel 2-2 are connected by a second thermal insulation structure 5;

[0054] a2: Select whether to co-extrude the second insulation layer 6 on the outside of the inner profile body 2 according to the required K value;

[0055] a3: If a second insulation layer 6 is co-extruded on the outside of the inner profile body 2, then a functional groove is constructed on the second insulation layer 6.

[0056] S4: Connect the outer profile body 1 and the inner profile body 2 through the first thermal insulation strip 3-1, and fill the second thermal insulation cavity formed by the inner profile body 1, the outer profile body 2 and the second thermal insulation strip 4-1 with the first thermal insulation filler 3-2; and by changing the width of the second thermal insulation strip 3-1 and the first thermal insulation filler 3-2, thermal insulation and insulated door and window profiles with different K values ​​can be combined.

[0057] The co-extrusion method of the second insulation layer 6 in S3a2 includes co-extruding the second insulation layer 6 on both sides of the inner profile body 1 or co-extruding the second insulation layer 6 on the outer side of the inner profile body 1.

[0058] Furthermore, the aforementioned functional slots include flat sheet slots, rubber strip slots, weatherstripping slots, hardware assembly slots, glass pressure line slots, and mounting and fixing slots or other hardware assembly slots.

[0059] Furthermore, the preparation method of the inner profile body 2 and the outer profile body 1 in this embodiment includes the following steps:

[0060] 1. Aluminum profile pretreatment: The aluminum profile is melted or sprayed to form a porous activated layer and a composite molding including thermal break aluminum lining. A layer of epoxy resin lining is evenly sprayed or brushed on the surface of the aluminum lining profile or thermal break composite aluminum lining profile and then dried by hot air or UV curing.

[0061] 2. Co-extrusion molding: An aluminum-lined profile conveyor transports the aluminum-lined profile, which includes non-broken bridge aluminum liners and broken bridge composite aluminum liners, into the center hole of the molding die; an extruder extrudes the second insulation layer 6 in the inner profile body 2 and the first insulation layer 4 in the outer profile body 1 in two batches. The second insulation layer 6 is made of rigid polyvinyl chloride plastic, and the first insulation layer 4 can be made of micro-foamed polyvinyl chloride plastic. The two batches are fed into the outer layer inlet and the middle layer inlet of the molding die respectively, and the composite structure of the aluminum-lined profile plastic layer is completed in the molding die.

[0062] 3. Layering and Shaping: The two-layer composite structure output from the forming mold is pulled into the shaping mold for cooling and shaping; in this step:

[0063] The aluminum-lined profiles are clamped by the rubber material on the surface of the conveyor's drive wheel, and the conveying speed and profile traction speed are 1.0-1.5 meters per minute;

[0064] The first insulation layer 4 and the second insulation layer 6 are respectively made of rigid polyvinyl chloride plastic (molding temperature 175-180℃) and micro-foamed polyvinyl chloride plastic (molding temperature 155-165℃); the weight ratio of heat stabilizing agent added to the micro-foamed polyvinyl chloride plastic is 5.5%, and the weight ratio of foaming agent added is 2.5-3.5%.

[0065] The foaming density of micro-foamed polyvinyl chloride (PVC) plastic is determined by the weight of the foaming agent added. When the weight ratio of the added foaming agent is 2.5%, a soft and lightweight micro-foamed plastic layer with a density of 0.7-0.8 g / cm³ can be obtained. This layer is applied to the first insulation layer 4. More importantly, the soft and lightweight micro-foamed plastic layer reduces the weight per meter of the profile, thereby reducing costs. When the weight ratio of the added foaming agent is 3.5%, a moderately hard foamed layer with a density of 1.1-1.2 g / cm³ can be obtained. This relatively hard micro-foamed plastic layer is applied to the second insulation layer 6. More importantly, it ensures the required hardness of the co-extruded layer on the visible surface, ensuring reliable high impact resistance and preventing easy scratches that affect the aesthetic appearance of the profile surface.

[0066] The melt pressure during PVC molding is 20-25 WPa, and the filling amount is 70-80% by weight of the profile plastic. The temperature for rigid PVC is 175-185℃, and the temperature for micro-foamed PVC is 155-165℃.

[0067] 4. Traction and cutting

[0068] While co-extruding rigid plastic or micro-foamed plastic and aluminum liner for molding and shaping, the co-extrusion profile traction machine is started; wherein: the traction direction is the profile extrusion direction, and the traction speed is the profile extrusion speed of 1.0 to 1.5 meters / minute; the profiles that run continuously after traction are cut into sections at the aluminum liner joints according to the aluminum liner length, generally 6 meters / piece, and concentrated in sections.

[0069] Furthermore, the surface treatment of the visible outer surface of the second insulation layer 6 is existing technology, including coating, film coating, etc.

[0070] 5. Tooth cutting, strip threading, and rolling.

[0071] The outer profile body 1 and inner profile body 2 are cut by a toothing machine. After toothing, the aluminum profile is inserted with PA66 nylon strips of the same height as the drawings. The inserted thermal insulation strips are rolled by a rolling machine to become a thermal insulation aluminum-plastic co-extruded composite profile.

[0072] In this embodiment, the thermal insulation profile connects the outer panel and the outer profile through the first thermal insulation structure 3, and the second thermal insulation structure 5 connects the outer profile and the inner profile body 2, forming multiple thermal resistance barriers. Combined with the first thermal insulation layer 4 co-extruded on both sides, it effectively blocks the heat conduction path, giving the door and window profile good thermal insulation performance. The increase in the thermal insulation cavity can significantly improve the sound insulation performance of the door and window. In addition, the inner profile body 2 and the outer profile body 1 of this utility model have multiple selection methods, and the setting method of the second thermal insulation layer 6 on the outer side of the inner profile body 2 is also diversified. By increasing or decreasing the width of the second thermal insulation strip 5-1 and the thermal insulation material of the second thermal insulation cavity, different K-value or U-value thermal insulation doors and windows can be matched according to actual needs, making the application range wider, meeting the personalized needs of engineering projects, and reducing costs.

[0073] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thermal insulation profile, characterized in that: It is used in casement, rotating, sliding, or folding doors and windows, and includes an outer profile body (1) and an inner profile body (2); the outer profile body (1) and the inner profile body (2) are connected by a first thermal insulation structure (3); the outer profile body (1) has extensions on both sides of its outer end; the two side walls of the outer profile and the back of the extensions are integrally co-extruded with a first thermal insulation layer (4).

2. The thermal insulation profile according to claim 1, characterized in that: The inner profile body (2) has a second insulation layer (6) co-extruded on both sides.

3. The thermal insulation profile according to claim 1, characterized in that: The inner profile body (2) includes an inner profile (2-1) and an inner panel (2-2); the inner profile (2-1) and the inner panel (2-2) are connected by a second heat insulation structure (5); a second insulation layer (6) covering the second heat insulation structure (5) is co-extruded on both sides of the inner profile (2-1).

4. The thermal insulation profile according to claim 1, characterized in that: The inner profile body (2) is co-extruded with a second insulation layer (6).

5. The thermal insulation profile according to claim 1, characterized in that: The inner profile body (2) includes an inner profile (2-1) and an inner panel (2-2); the inner profile (2-1) and the inner panel (2-2) are connected by a second heat insulation structure (5); a second insulation layer (6) covering the second heat insulation structure (5) is co-extruded around the inner profile (2-1) and the inner panel (2-2).

6. The thermal insulation profile according to claim 1, characterized in that: The inner profile body (2) has at least two chambers from the outside to the inside.

7. The thermal insulation profile according to claim 1, characterized in that: The first heat insulation structure (3) includes at least two first heat insulation strips (3-1); the first heat insulation strips (3-1), the inner profile body (2) and the outer profile body (1) form a first heat insulation cavity; the first heat insulation cavity is filled with a first heat insulation filler (3-2).

8. A thermal insulation profile according to claim 3 or 5, characterized in that: The second thermal insulation structure (5) includes at least two second thermal insulation strips (5-1); a second thermal insulation cavity is formed between the second thermal insulation strips (5-1), the inner plate (2-2) and the inner profile (2-1); the second thermal insulation cavity is filled with a second thermal insulation filler (5-2).

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