M75 series high-performance broken bridge heat insulation window
By setting multi-cavity irregular thermal insulation strips between the inner and outer frames of doors and windows, multiple thermal insulation cavities are formed, solving the problem of poor thermal insulation effect of doors and windows and achieving efficient thermal insulation and lightweight design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI ZHONGSHI DOORS & WINDOWS TECHNOLOGY CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-24
AI Technical Summary
Existing doors and windows have poor heat insulation, resulting in rapid air convection, poor heat insulation and heat preservation performance, and increased frame thickness and weight.
The design employs a multi-cavity anisotropic thermal insulation strip, including a first multi-cavity anisotropic thermal insulation strip, a second multi-cavity anisotropic thermal insulation strip, and a third multi-cavity anisotropic thermal insulation strip, which are respectively set in the spacer between the inner frame and the outer frame to form multiple insulation cavities, thereby increasing the thermal insulation effect and reducing the overall weight.
It improves the thermal insulation performance of doors and windows while reducing the overall weight, thus solving the problem of poor thermal insulation in existing technologies.
Smart Images

Figure CN224549975U_ABST