High-thermal-insulation double-inward-opening casement window

CN224396318UActive Publication Date: 2026-06-23GUANGDONG JIHUA ALUMINUM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG JIHUA ALUMINUM CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing double inward-opening casement windows lack thermal insulation structures at the contact surface between the window frame and the window sash, resulting in easy heat conduction, poor thermal insulation, and easy noise transmission into the room.

Method used

Polyamide thermal insulation strips are installed between the window frame and the window sash, and molecular sieve spacers are filled in the double-glazed windows. Combined with dehumidifiers, a multi-layer thermal insulation structure is formed to block heat conduction and noise transmission.

Benefits of technology

It significantly reduces the rate of heat conduction, improves thermal insulation performance, reduces noise transmission, maintains light transmittance and durability, and extends the service life of glass.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses high heat preservation heat insulation double inner open casement window, including heat insulation window frame assembly still including inner open casement window subassembly, the inside of heat insulation window frame assembly is provided with inner open casement window subassembly, heat insulation window frame assembly includes the window frame, inner open casement window subassembly includes the window sash, the inboard of window frame is provided with window sash, the inside of window sash is provided with double -layer hollow glass, and the polyamide heat insulation strip is provided between window frame and window sash. The utility model discloses the sealing place between window frame and window sash is separated through the polyamide heat insulation strip, thereby effectively reduces the efficiency of heat conduction and noise spread, and greatly improves the heat insulation sound insulation effect.
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Description

Technical Field

[0001] This utility model relates to the field of casement window technology, and in particular to a high-thermal-insulation double-inward-opening casement window. Background Technology

[0002] In the field of modern architecture, as people’s requirements for living environment comfort and energy conservation and environmental protection continue to increase, the performance of doors and windows has received more and more attention. As a common window type, double inward opening casement windows are widely used because of their advantages such as convenient opening and good ventilation. However, many double inward opening casement windows on the market at present have obvious deficiencies in heat insulation and noise reduction.

[0003] Traditional double-opening casement windows typically use aluminum alloy or other metal materials for the frame and sash. While these materials are durable and easy to install, they have excellent thermal conductivity. The contact surface between the frame and sash generally lacks effective insulation. When there is a significant temperature difference between the outside and inside, heat can easily be conducted from the outside to the inside of the sash through this contact surface. In winter, this leads to rapid heat loss and increased heating energy consumption. In summer, high outdoor temperatures can also cause significant heat transfer into the room, increasing the burden on air conditioning. Furthermore, this heat transfer affects the overall insulation of the window, making it difficult to maintain a stable indoor temperature. Additionally, the lack of insulation at the frame-sash contact surface compromises the window's overall sealing, allowing external noise to easily penetrate and resulting in poor noise reduction. Utility Model Content

[0004] In order to overcome the problem that existing double inward-opening casement windows have poor heat insulation and noise reduction effects because the contact surface between the window frame and the window sash lacks a heat insulation structure, which makes it easy for heat to be conducted from the outside of the window to the inside of the window sash.

[0005] The technical solution is as follows: a high-thermal-insulation double-sided inward-opening casement window, including an insulated window frame assembly and an inward-opening casement window assembly; the inward-opening casement window assembly is installed inside the insulated window frame assembly; the insulated window frame assembly includes a window frame; the inward-opening casement window assembly includes a window sash; the window sash is installed on the inner side of the window frame, and the window sash and window frame are connected by hinges; the window sash is equipped with double-glazed glass, and the double-glazed glass is fixedly connected to the window sash; a polyamide thermal insulation strip is installed between the window frame and the window sash, and two polyamide thermal insulation strips are installed.

[0006] Furthermore, both sides of the double-glazed windows are equipped with thermal insulation sealing strips, which are connected to the recessed grooves of the window sash via snap-fit ​​connections.

[0007] Furthermore, a polyamide thermal break strip is installed between the window frame and the window sash; the front and rear ends of the polyamide thermal break strip are respectively provided with a first thermal break joint and a second thermal break joint, and the first thermal break joint and the second thermal break joint are integrally formed with the polyamide thermal break strip.

[0008] Furthermore, the two second thermal break joints are fixedly connected to the window sash and window frame slots, respectively.

[0009] Furthermore, the double-glazed insulated glass is equipped with molecular sieve spacers inside, and the molecular sieve spacers are fixedly installed and filled into the gaps between the double-glazed insulated glass; the molecular sieve spacers are made of a desiccant mixed inside.

[0010] Furthermore, a water-stop plate is installed at the lower rear end of the window frame, and the water-stop plate is fixedly connected to the window frame.

[0011] Furthermore, a reinforcing frame is provided inside the window frame, and the reinforcing frame is integrally formed with the window frame.

[0012] The beneficial effects are as follows: The metal window frame and sash of this utility model inherently possess high heat conduction efficiency. If there is no effective barrier at the seal, external heat can be seamlessly transferred into the room through the metal substrate (or indoor heat can dissipate outwards). The intervention of the polyamide thermal insulation strip completely breaks the continuous heat conduction chain of the metal, cutting the originally continuous heat flow into segmented transmission, forcing a sudden change in thermal resistance at the interface of the thermal insulation strip, significantly reducing the heat conduction rate, and fundamentally weakening the heat exchange capacity at the seal. Noise propagation is divided into two paths: solid conduction (transmission of vibration in the metal structure) and air propagation (sound wave diffusion within the gap). Regarding solid conduction: the acoustic resistance of the polyamide thermal insulation strip and the metal substrate... With significant impedance differences, when sound waves are conducted along the metal structure of the window frame and sash to the interface of the thermal insulation strip, reflection, scattering, and energy loss occur due to impedance abrupt changes, directly weakening the noise intensity transmitted by solid vibrations. Regarding air propagation: the gaps at the seal are originally "fast channels" for sound waves. The polyamide thermal insulation strip not only physically separates the gap space but also changes the local medium density, causing the sound waves propagating in the air to experience increased energy attenuation due to refraction and diffraction effects when passing through the area around the thermal insulation strip, further suppressing noise penetration. Through the synergistic effect of the above-mentioned heat conduction blocking and noise multipath attenuation, the polyamide thermal insulation strip systematically optimizes the thermal and acoustic performance of the window frame and sash seal from a physical mechanism level.

[0013] By incorporating molecular sieve spacers within the double-glazed insulated glass, the spacers, mixed with desiccant, achieve highly efficient moisture absorption through the synergistic effect of the molecular sieve and desiccant. This effectively removes moisture from the spacer layer, preventing fogging and frost formation and maintaining light transmittance. Simultaneously, it maintains a dry environment within the double-glazed insulated glass spacer layer, stabilizing thermal insulation performance and reducing heat exchange, thus contributing to energy conservation. Furthermore, it reduces the erosion of sealing materials by moisture, extending the glass's lifespan. Additionally, it helps maintain stable sound insulation, thereby ensuring the comprehensive performance of the glass in terms of light transmittance, thermal insulation, durability, and noise reduction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;

[0016] Figure 3 This is a front-view three-dimensional structural diagram of the overall partial cross-section of this utility model;

[0017] Figure 4 This is a side view of the overall partial cross-sectional three-dimensional structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the polyamide thermal insulation strip of this utility model.

[0019] In the attached drawings, the following are the reference numerals: 1. Thermal insulation window frame assembly; 2. Inward opening casement window assembly; 101. Window frame; 102. Water barrier; 103. Polyamide thermal insulation strip; 104. Reinforcing frame; 105. First thermal break joint; 106. Second thermal break joint; 201. Window sash; 202. Double-glazed insulated glass; 203. Molecular sieve spacer; 204. Thermal insulation sealing strip. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-5As shown, a high-insulation, heat-resistant double-opening casement window includes an insulated window frame assembly 1 and an inward-opening casement window assembly 2. The inward-opening casement window assembly 2 is installed inside the insulated window frame assembly 1. The insulated window frame assembly 1 includes a window frame 101. The inward-opening casement window assembly 2 includes a window sash 201. The window sash 201 is installed on the inner side of the window frame 101, and the window sash 201 is hinged to the window frame 101. The window sash 201 is equipped with double-glazed glass 202, and the double-glazed glass 202 is fixedly connected to the window sash 201. A polyamide thermal insulation strip 103 is installed between the window frame 101 and the window sash 201, and two polyamide thermal insulation strips 103 are provided.

[0023] Both sides of the double-glazed insulated glass 202 are provided with heat-insulating sealing strips 204, and the heat-insulating sealing strips 204 are connected to the groove of the window sash 201 by snap-fit.

[0024] A polyamide thermal insulation strip 103 is provided between the window frame 101 and the window sash 201; a first thermal break joint 105 and a second thermal break joint 106 are respectively provided at the front and rear ends of the polyamide thermal insulation strip 103, and the first thermal break joint 105 and the second thermal break joint 106 are integrally formed with the polyamide thermal insulation strip 103.

[0025] The two second thermal break splice joints 106 are fixedly connected to the window sash 201 and the window frame 101 slot, respectively.

[0026] The double-glazed insulating glass 202 has a molecular sieve spacer 203 inside, and the molecular sieve spacer 203 is fixedly installed and filled into the gaps of the double-glazed insulating glass 202; the molecular sieve spacer 203 is made of desiccant mixed inside.

[0027] A water baffle 102 is provided at the lower rear end of the window frame 101, and the water baffle 102 is fixedly connected to the window frame 101.

[0028] The metal window frame 101 and window sash 201 inherently possess high heat conduction efficiency. If there is no effective barrier at the seal, external heat can be seamlessly transferred into the room through the metal substrate, or internal heat can dissipate outwards. The intervention of the polyamide thermal insulation strip 103 completely disrupts the continuous heat conduction chain of the metal, cutting the originally continuous heat flow into segmented transmission. This forces a sudden change in thermal resistance at the interface of the thermal insulation strip, significantly reducing the heat conduction rate and weakening the heat exchange capacity at the seal from the root. Noise propagation occurs through two paths: solid-borne conduction via metal structural vibration and airborne propagation via sound wave diffusion within gaps. Regarding solid-borne conduction: the acoustic impedance difference between the polyamide thermal insulation strip 103 and the metal substrate is significant. When sound waves travel along the window frame... When the metal structure of the window sash 201 conducts heat to the interface of the thermal insulation strip, it will reflect, scatter, and lose energy due to the sudden change in impedance, directly weakening the noise intensity transmitted by solid vibration. Regarding air transmission: the gap at the seal is a "fast channel" for sound waves. The polyamide thermal insulation strip 103 not only physically separates the gap space, but also changes the local medium density, so that the sound waves propagating in the air will increase energy attenuation due to refraction and diffraction effects when passing through the area around the thermal insulation strip, further suppressing noise penetration. Through the synergistic effect of the above-mentioned heat conduction blocking and noise multipath attenuation, the polyamide thermal insulation strip 103 systematically optimizes the thermal and acoustic performance of the seal between the window frame 101 and the window sash 201 from the physical mechanism level.

[0029] Example 2

[0030] Based on Example 1, such as Figures 1-5 As shown, a reinforcing frame 104 is provided inside the window frame 101, and the reinforcing frame 104 is integrally formed with the window frame 101.

[0031] With the molecular sieve spacer 203, the molecular sieve spacer 203 mixed with desiccant in the double-glazed insulated glass 202 has a high moisture absorption capacity due to the synergistic effect of the molecular sieve and desiccant. It can deeply remove water vapor from the spacer layer, prevent the glass from fogging and frosting to maintain light transmission. At the same time, it maintains a dry environment in the spacer layer of the double-glazed insulated glass 202, stabilizes the heat insulation performance and reduces heat exchange, thus contributing to energy saving. It can also reduce the corrosion of sealing materials by water vapor, extend the service life of the glass, and help maintain a stable sound insulation effect. Therefore, it can ensure the comprehensive performance of the glass from multiple aspects such as light transmission, heat insulation, durability and noise reduction.

Claims

1. A high-thermal-insulation double-inward-opening casement window, comprising a thermally insulated window frame assembly (1), characterized in that: It also includes an inward-opening casement window assembly (2); the insulated window frame assembly (1) is provided with an inward-opening casement window assembly (2); the insulated window frame assembly (1) includes a window frame (101); the inward-opening casement window assembly (2) includes a window sash (201); the window sash (201) is provided on the inner side of the window frame (101), and the window sash (201) is hinged to the window frame (101); the window sash (201) is provided with double-glazed glass (202), and the double-glazed glass (202) is fixedly connected to the window sash (201); a polyamide thermal insulation strip (103) is provided between the window frame (101) and the window sash (201), and two polyamide thermal insulation strips (103) are provided.

2. The high thermal insulation double inward opening casement window according to claim 1, characterized in that: Both sides of the double-glazed insulated glass (202) are provided with heat-insulating sealing strips (204), and the heat-insulating sealing strips (204) are connected to the groove of the window sash (201) by snap-fit.

3. The high thermal insulation double inward opening casement window according to claim 1, characterized in that: A polyamide thermal break strip (103) is provided between the window frame (101) and the window sash (201); a first thermal break joint (105) and a second thermal break joint (106) are respectively provided at the front and rear ends of the polyamide thermal break strip (103), and the first thermal break joint (105) and the second thermal break joint (106) are integrally formed with the polyamide thermal break strip (103).

4. The high thermal insulation double inward opening casement window according to claim 3, characterized in that: The two second thermal break splice joints (106) are fixedly connected to the window sash (201) and window frame (101) slots respectively.

5. The high thermal insulation double inward opening casement window according to claim 1, characterized in that: The double-glazed insulating glass (202) has a molecular sieve spacer (203) inside, and the molecular sieve spacer (203) is fixedly installed in the gap of the double-glazed insulating glass (202); the molecular sieve spacer (203) is made of desiccant mixed inside.

6. The high thermal insulation double inward opening casement window according to claim 1, characterized in that: A water baffle (102) is provided at the lower rear end of the window frame (101), and the water baffle (102) is fixedly connected to the window frame (101).

7. The high thermal insulation double inward opening casement window according to claim 1, characterized in that: The window frame (101) is provided with a reinforcing frame (104) inside, and the reinforcing frame (104) is integrally formed with the window frame (101).