A break cold composite door frame

Abstract

The utility model discloses a kind of cold break composite door frame, it is characterized by: including outer door frame, and install in outer door frame inner door frame, and install in hollow glass of inner door frame, and set in the door seal strip between inner door frame and hollow glass, the inner door frame is soft hard co-extrusion inner door frame, and hard edge of inner door frame is inserted in outer door frame, soft edge is attached on the inner layer glass of hollow glass, and generates deformation;The cold break composite door frame can be through innovative material and structure design, not only enhance the sealing property and heat insulation effect of refrigerator door frame, but also can improve the connection stability between door seal strip and door frame, to provide more durable and effective cold break effect in actual use.

Description

Technical Field

[0001] This utility model relates to a heat-insulating composite door frame. Background Technology

[0002] With the increasing demand for energy conservation, environmental protection, and smart home appliances, the requirements for thermal insulation performance in the freezer industry are becoming increasingly stringent. As a crucial part of the freezer structure, the freezer door frame directly affects the freezer's insulation performance and energy efficiency. While traditional freezer door frames provide basic sealing and insulation, limitations in their structure and materials often lead to heat penetration and a decrease in cooling capacity, thus impacting the freezer's energy efficiency and refrigeration performance. Therefore, effectively improving the heat insulation performance of freezer door frames has become an important topic in freezer technology research and development.

[0003] Current technologies often employ a combination of methods to optimize cooling performance, such as injecting inert gas into the freezer door frame, applying glass coatings, and using composite materials. However, these technologies typically only mitigate heat conduction to a certain extent and still suffer from the following technical drawbacks in practical applications:

[0004] The inner frame lacks a cooling insulation structure: Because aluminum alloy metal door frames have good thermal conductivity, it is easy for external heat sources to transfer heat to internal cold sources, resulting in poor cooling insulation. The inner frame lacks a composite structure to prevent cooling.

[0005] Unstable connection, prone to loosening: In existing technology, the connection between the door seal and the freezer door frame is often achieved through simple buckles or embedded design. However, this connection method is often not stable enough. During long-term use, it is easy to loosen or fall off, resulting in a decrease in sealing performance and even affecting the overall structural stability of the freezer door frame.

[0006] Lack of effective thermal insulation design: Currently, most technologies still rely on single materials or simple structural designs to achieve cooling insulation, lacking multi-layered and composite thermal insulation designs. This limits the heat conduction resistance of some high-performance freezer door frames, making them unable to meet the high requirements of modern freezers for thermal insulation and energy saving.

[0007] Installation and maintenance are complex: Although some existing designs can provide a certain degree of heat insulation in the short term, their complex structure makes installation and maintenance cumbersome, increasing production costs and the difficulty of maintenance in later use. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model proposes a cold-break composite door frame. Through innovative material and structural design, it not only enhances the sealing and thermal insulation of the refrigerator door frame, but also improves the connection stability between the door seal and the door frame, thereby providing a more durable and effective cold-break effect in practical use.

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A cold-break composite door frame includes an outer door frame, an inner door frame installed on the outer door frame, a double-glazed glass unit installed on the inner door frame, and a door seal strip disposed between the inner door frame and the double-glazed glass unit. The inner door frame is a soft-hard co-extruded inner door frame, and the hard edge of the inner door frame is inserted into the outer door frame, while the soft edge is attached to the inner glass layer of the double-glazed glass unit and deforms.

[0011] Preferably, the outer door frame has a first frame slot on its back, and the inner door frame has a second frame slot for holding the door seal. The soft and hard co-extruded part of the door seal forms a protruding structure and is inserted into the second frame slot, while another part protrudes out of the inner door frame.

[0012] Preferably, the insulating glass is a double-layered insulating glass, and the door seal has a spacer at the connection part of the insulating glass to be inserted into the double-layered insulating glass.

[0013] Preferably, the outer door frame is an aluminum profile frame, the inner door frame is a plastic frame, and the door seal is an elastic seal.

[0014] Preferably, a door handle is installed on the outer door frame, and the door handle is side-mounted on the outer door frame.

[0015] Preferably, the portion of the door seal protruding from the inner door frame faces inward and forms an air cavity buffer layer.

[0016] Preferably, the insulated glass and the inner glass are positioned on the inner side of the inner door frame and are kept within the door seal.

[0017] The beneficial effects of this utility model are:

[0018] The cold-break composite door frame of this invention, through the adoption of a soft-hard co-extruded inner door frame design, combined with the interlocking of the hard edge of the inner door frame with the outer door frame, and the adhesion and deformation effect of the soft edge to the inner layer of the insulating glass, can effectively improve the thermal insulation performance of the freezer and reduce heat transfer. Specifically, the structural design of the soft-hard co-extruded inner door frame allows the door frame to adapt to thermal expansion and contraction under different ambient temperatures while ensuring sealing performance, reducing the decrease in sealing performance caused by temperature differences.

[0019] Furthermore, the soft edge of the inner door frame provides better adhesion to the double-glazed glass during use, effectively preventing cold air leakage and reducing heat penetration inside the freezer, further improving cooling performance and energy efficiency. The design of the hard edge snapping into the outer door frame makes the entire door frame structure more stable, preventing loosening and decreased sealing due to use or environmental factors, thus ensuring the stability and high-efficiency heat insulation of the inner door frame over a long period of time.

[0020] The door frame structure of this invention also has good assembly simplicity, which can reduce production and maintenance costs, while reducing the assembly difficulty and long-term maintenance problems caused by the complex structure in traditional technologies, providing an innovative solution with high practical value for the freezer industry. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a heat-insulating composite door frame according to the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of a heat-insulating composite door frame according to the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional state of a heat-insulating composite door frame according to the present invention; Specific implementation methods

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0027] See Figure 1-3 As shown, a cold-break composite door frame includes an outer door frame 1, an inner door frame 2 installed on the outer door frame 1, a double-glazed glass 3 installed on the inner door frame 2, and a door seal 4 disposed between the inner door frame 2 and the double-glazed glass 3. The inner door frame 2 is a soft-hard co-extruded inner door frame 2, and the hard edge of the inner door frame 2 is inserted into the outer door frame 1, while the soft edge is attached to the inner glass of the double-glazed glass 3 and deforms.

[0028] The design of the co-extruded inner door frame 2 allows the hard edge to be firmly embedded in the outer door frame 1, providing stable structural support. At the same time, the soft edge can adhere to the inner glass of the insulated glass 3 and deform. The deformation of the soft edge ensures the airtightness between the door frame and the glass, effectively preventing cold air leakage during the operation of the freezer, thereby improving the freezer's insulation and cooling efficiency.

[0029] The material properties and design of the co-extruded inner door frame 2 reduce heat conduction. The engagement between the hard edge and the outer door frame 1 ensures structural stability, while the deformation of the soft edge helps to further isolate the transfer of heat and cold air, thereby effectively improving cooling performance, reducing energy consumption, and enhancing the energy efficiency of the freezer.

[0030] Thanks to the interlocking design between the inner door frame 2 and the outer door frame 1, the entire door frame structure is more stable and can withstand temperature changes and external pressure during long-term use, avoiding the shortcomings of traditional door frame structures that are prone to loosening or falling off. This stability helps extend the lifespan of the freezer and reduces the frequency of maintenance and replacement.

[0031] The outer door frame 1 has a first frame slot 11 on its back, and the inner door frame 2 has a second frame slot 21 for holding the door seal 4. The soft and hard co-extruded part of the door seal 4 forms a protruding structure and is inserted into the second frame slot 21, while another part protrudes out of the inner door frame 2. The insulating glass 3 is a double-layer insulating glass 3, and the door seal 4 has a spacer slot at the connection part of the insulating glass 3 for inserting into the double-layer insulating glass 3.

[0032] The soft and hard co-extruded parts of the door seal 4 form a snap-fit ​​structure and are firmly inserted into the slot 21 of the second frame, ensuring a stable connection between the door seal 4 and the inner door frame 2. This design effectively prevents the door seal 4 from falling off due to external force or temperature changes during use, ensuring stable sealing performance of the door frame during long-term use, preventing cold air leakage, and improving the heat preservation effect of the freezer.

[0033] The use of double-glazed windows 3 enhances the heat insulation performance of the door frame, effectively reducing heat conduction and providing better sound insulation. The connection between the door seal 4 and the double-glazed windows 3 forms a locking space, ensuring a tight fit between the glass and the door frame, thereby improving the stability of the glass, reducing the risk of glass vibration or detachment, and enhancing the safety of the freezer.

[0034] By setting first and second frame slots 21 on the outer door frame 1 and the inner door frame 2 respectively, and using a door seal 4 with a convex structure, the assembly process of the door frame and the door seal 4 can be simplified. This design not only improves installation efficiency and reduces assembly difficulty, but also facilitates maintenance and replacement, reducing maintenance costs during long-term use.

[0035] The outer door frame 1 is an aluminum profile frame, the inner door frame 2 is a plastic frame, and the door seal 4 is an elastic seal. A door handle 5 is installed on the outer door frame 1, and the door handle 5 is side-mounted on the outer door frame 1. The portion of the door seal 4 protruding from the inner door frame 2 faces inward and forms an air cavity buffer layer. The insulated glass 3 and the inner glass are located inward on the inner door frame 2 and are kept inside the door seal 4.

[0036] The door seal 4 protrudes from the inner door frame 2 and forms an air cavity buffer layer facing inward, which can effectively reduce heat transfer. Air, as a good heat insulation material, forms a buffer layer between the door seal 4 and the inner door frame 2, improving the overall heat insulation performance, reducing the loss of cold air and the entry of external heat, thereby improving energy saving and the thermal insulation performance of the equipment.

[0037] The use of a flexible door seal 4 allows for better adaptation to the contact surfaces of the door frame and the insulated glass 3, ensuring both strong and flexible sealing. The elasticity of the door seal 4 enables it to fit tightly against the inner door frame 2, further enhancing the sealing effect. Simultaneously, the air cavity buffer layer effectively reduces noise generated when the freezer door opens and closes, making door operation quieter.

[0038] The design of the aluminum profile outer door frame 1 combined with the plastic inner door frame 2 makes the entire door frame structure lightweight and sturdy, ensuring good durability while effectively reducing production and transportation costs. The side-mounted design of the door handle 5 increases the ease of operation, allowing users to open and close the door more easily, while avoiding the potential space occupation problem caused by the protruding door handle 5.

[0039] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A thermal break composite door frame, characterized in that: It includes an outer door frame, an inner door frame installed on the outer door frame, a double-glazed glass installed on the inner door frame, and a door seal strip disposed between the inner door frame and the double-glazed glass. The inner door frame is a soft-hard co-extruded inner door frame, and the hard edge of the inner door frame is inserted into the outer door frame, while the soft edge is attached to the inner glass of the double-glazed glass and deforms.

2. The cold-break composite door frame according to claim 1, characterized in that: The outer door frame has a first frame slot on its back, and the inner door frame has a second frame slot for holding the door seal. The soft and hard co-extruded part of the door seal forms a protruding structure and is inserted into the second frame slot, while another part protrudes out of the inner door frame.

3. The cold-break composite door frame according to claim 2, characterized in that: The insulating glass is a double-layered insulating glass, and the door seal has a spacer at the connection part of the insulating glass to be inserted into the double-layered insulating glass.

4. The cold-break composite door frame according to claim 3, characterized in that: The outer door frame is an aluminum profile frame, the inner door frame is a plastic frame, and the door seal is an elastic seal.

5. The cold-break composite door frame according to claim 4, characterized in that: A door handle is installed on the outer door frame, and the door handle is side-mounted on the outer door frame.

6. The cold-break composite door frame according to claim 3, characterized in that: The portion of the door seal protruding from the inner door frame faces inward and forms an air cavity buffer layer.

7. The cold-break composite door frame according to claim 6, characterized in that: The insulated glass and the inner glass are positioned on the inner side of the inner door frame and remain within the door seal.

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