Double-magnetic attraction energy-saving door seal and door body structure thereof

Abstract

The utility model discloses a double-magnet attraction energy-saving door seal and a door body structure thereof, and belongs to the technical field of refrigeration equipment, the double-magnet attraction energy-saving door seal comprises an outer magnetic strip bag and an inner magnetic strip bag, a connecting air bag is arranged between the outer magnetic strip bag and the inner magnetic strip bag, a main air bag is arranged on one side of the outer magnetic strip bag, one side of the inner magnetic strip bag and one side of the connecting air bag; a clamping cavity is formed in the side, away from the outer magnetic strip bag and the inner magnetic strip bag, of the main air bag. The door body structure comprises a double-magnetic attraction energy-saving door seal, the double-magnetic attraction energy-saving door seal is arranged on the opening side of a door shell, a door lining is arranged on the inner side of the door shell, the clamping cavity is formed in a mounting groove of the door lining, a U-shaped shell is arranged on the opposite side of the door shell, and an inner container is arranged on the inner side of the U-shaped shell. The multi-magnetic-strip door seal technology is adopted, the multi-dimensional performance is improved by optimizing the door body and the door seal structure, the sealing performance is improved, the energy consumption is reduced, the refrigeration efficiency is improved, the temperature is kept stable, and the freshness and the taste of food are better kept; the service life is prolonged, and the heat insulation effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a double magnetic attraction energy-saving door seal and its door structure. Background Technology

[0002] Traditional refrigerators, freezers, and other refrigeration equipment typically use a single magnetic strip sealing structure for their door seals. This seal relies on the magnetic attraction between a single magnetic strip and the door frame. Figure 1-2 As shown. However, this type of design has significant drawbacks:

[0003] Uneven sealing: The magnetic field distribution of a single magnetic strip at the edge of the door is uneven, resulting in insufficient local sealing pressure. This can easily lead to cold air leakage after frequent opening and closing or long-term use, resulting in increased energy consumption.

[0004] Low temperature failure: In extreme low temperature environments (below -30℃), traditional PVC magnetic strips are prone to hardening, resulting in decreased magnetic permeability and weakened adsorption force, further exacerbating the risk of seal failure.

[0005] Structural redundancy: To compensate for insufficient sealing, the thickness of the magnetic strip often needs to be increased, which leads to increased costs and affects the user experience;

[0006] User experience optimization: Consumer demand for low noise (<30dB), lightweight (20% reduction in door weight) and long life (>10 years) is driving innovation in door sealing materials and structures. Utility Model Content

[0007] The purpose of this invention is to provide a dual magnetic attraction energy-saving door seal and its door structure, which solves the problems of uneven sealing, low-temperature failure, and structural redundancy in single magnetic strip sealing structures.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] This utility model discloses a double magnetic attraction energy-saving door seal, including an outer magnetic stripe bag and an inner magnetic stripe bag. A connecting air bag is provided between the outer magnetic stripe bag and the inner magnetic stripe bag. A main air bag is provided on one side of the outer magnetic stripe bag, the inner magnetic stripe bag and the connecting air bag. A card-mounting chamber is provided on the side of the main air bag away from the outer magnetic stripe bag and the inner magnetic stripe bag.

[0010] Furthermore, an auxiliary wing is provided on the outer wall of the inner magnetic stripe, and a first groove is provided at the connection between the auxiliary wing and the inner magnetic stripe.

[0011] Furthermore, the inner side of the main airbag is provided with an inner support rib, and the inner support rib is provided with a sealing wing.

[0012] Furthermore, the side wall of the card-mounting chamber is provided with inverted fins, and the outer wall of the card-mounting chamber is provided with door sealing groove sealing fins.

[0013] Furthermore, the main airbag has a central support rib inside, and the two bends of the central support rib have second grooves.

[0014] Furthermore, the bottom of the main airbag is provided with a cover wing facing outward.

[0015] Furthermore, the outer magnetic stripe pouch is provided with an outer magnetic stripe, and the inner magnetic stripe pouch is provided with an inner magnetic stripe.

[0016] Furthermore, the door seal is made of PVC, TPE, or PVC-TPU alloy. Alternatively, the door seal may be made of foamed PVC, foamed TPE, or foamed PVC-TPU alloy.

[0017] A door structure includes a double magnetic attraction energy-saving door seal as described above. The double magnetic attraction energy-saving door seal is disposed on the opening side of the door shell. A door liner is disposed on the inner side of the door shell. The card-mounting chamber is disposed in the mounting groove of the door liner. A U-shell is disposed on the opposite side of the door shell. An inner liner is disposed on the inner side of the U-shell.

[0018] Furthermore, an auxiliary suction element is provided on the inner side of the inner liner at a position corresponding to the inner magnetic strip.

[0019] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0020] This invention employs multi-magnetic strip door seal technology, achieving multi-dimensional performance improvements through optimized door and seal structures. Enhanced sealing performance: The superimposed magnetic fields increase the effective sealing area by 30%-50%, reducing overall energy consumption by over 6%, increasing insulation efficiency by over 12%, and improving refrigeration efficiency; Stable temperature maintenance: Good sealing performance helps maintain stable and uniform internal temperature, reducing temperature fluctuations and thus better preserving food freshness and taste; Adaptability to gap changes: Multi-magnetic strip door seals better adapt to changes in the gap between the refrigerator door and the body, compensating for installation and processing errors, improving the sealing performance and lifespan of the door seal; Enhanced insulation: Multi-magnetic strip door seals typically use a multi-airbag structure, increasing air volume and improving the thermal resistance of the door seal, further enhancing the insulation effect, reducing heat exchange, and lowering the refrigerator's energy consumption. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of the door seal in the unclosed state in the prior art;

[0023] Figure 2 This is a schematic diagram of the door seal in the closed state in the prior art;

[0024] Figure 3 This is a schematic diagram of the structure of the double magnetic attraction energy-saving door seal of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the present invention in its unengaged state;

[0026] Figure 5 This is a schematic diagram of the structure of the present invention in the suction state;

[0027] Explanation of reference numerals in the attached drawings: 1. Outer magnetic stripe bag; 2. Inner magnetic stripe bag; 3. Connecting air bag; 4. Main air bag; 5. Inner support rib; 5-1. Sealing wing; 6. Auxiliary wing edge; 6-1. First groove; 7. Snap-fit ​​chamber; 8. Inverted wing; 9. Door sealing groove sealing wing; 10. Cover liner long wing; 11. U-shell; 12. Inner liner; 13. Door shell; 14. Door liner; 15. Outer magnetic stripe; 16. Inner magnetic stripe; 17. Suction component; 18. Central support rib; 18-1. Second groove. Detailed Implementation

[0028] like Figure 3 As shown, a dual-magnetic-attracting energy-saving door seal includes an outer magnetic stripe 1 and an inner magnetic stripe 2. A connecting airbag 3 connects the outer magnetic stripe 1 and the inner magnetic stripe 2. A main airbag 4 is connected to one side of the outer magnetic stripe 1, the inner magnetic stripe 2, and the connecting airbag 3. A locking chamber 7 is connected to the side of the main airbag 4 away from the outer magnetic stripe 1 and the inner magnetic stripe 2. An auxiliary wing 6 extending inwardly is connected to the outer wall of the inner magnetic stripe 2. A first groove 6 is provided at the connection between the auxiliary wing 6 and the inner magnetic stripe 2. 1; An inner support rib 5 is provided on the inner side of the main airbag 4, and a sealing wing 5-1 is connected to the inner support rib 5; A middle support rib 18 is connected inside the main airbag 4, and a second groove 18-1 is provided at the two bends of the middle support rib 18; An inverted wing 8 and a door sealing groove sealing wing 9 are connected to the side wall of the mounting chamber 7; A cover liner long wing 10 is connected to the bottom of the main airbag 4 facing outward; The sealing wing 5-1, the auxiliary wing edge 6, and the cover liner long wing 10 can all further seal the door seal gap and reduce cold air leakage.

[0029] An outer magnetic stripe 15 is installed inside the outer magnetic stripe sac 1, and an inner magnetic stripe 16 is installed inside the inner magnetic stripe sac 2.

[0030] The door seal is made of PVC, TPE, or PVC-TPU alloy. Alternatively, it can be made of foamed PVC, foamed TPE, or foamed PVC-TPU alloy.

[0031] like Figure 4-5 As shown, a door structure includes a double magnetic attraction energy-saving door seal as described above. The double magnetic attraction energy-saving door seal is disposed on the opening side of the door shell 13. A door liner 14 is disposed on the inner side of the door shell 13. The snap-fit ​​chamber 7 is disposed in the mounting groove of the door liner 14. A U-shell 11 is disposed on the opposite side of the door shell 13. An inner liner 12 is disposed on the inner side of the U-shell 11. Specifically, the mounting groove is an inverted Ω shape. The diameter at the maximum position of the cross-section of the snap-fit ​​chamber 7 is larger than the opening diameter of the mounting groove. When the snap-fit ​​chamber 7 is inserted into the mounting groove through its own elastic deformation, it can be firmly snapped into the mounting groove.

[0032] Both the U-shell 11 and the door shell 13 are made of PCM material, and the door liner 14 is made of PS material.

[0033] An auxiliary suction component is provided on the inner side of the inner liner 12 at a position corresponding to the inner magnetic strip 16. There are two design options for this position. First, the auxiliary suction component is a suction component 17, which can be a magnetic strip or an iron strip. The inner liner 12 can be made of PS material. In this case, a limiting groove is designed on the back of the inner liner 12, and the suction component 17 is placed in the limiting groove and fixed with tape, allowing it to attract the inner magnetic strip 16. Second, the auxiliary suction component is a sheet metal structure or a PCM board. The position of the inner liner 12 corresponding to the inner magnetic strip 16 can be replaced with a sheet metal structure or a PCM board to cooperate with the door seal for suction. In this case, the inner magnetic strip 16 is directly attracted to the sheet metal or PCM board.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A dual magnetic latching energy saving door closer characterized by: It includes an outer magnetic stripe bag (1) and an inner magnetic stripe bag (2), and a connecting air bag (3) is provided between the outer magnetic stripe bag (1) and the inner magnetic stripe bag (2). A main air bag (4) is provided on one side of the outer magnetic stripe bag (1), the inner magnetic stripe bag (2) and the connecting air bag (3). A carding chamber (7) is provided on the side of the main air bag (4) away from the outer magnetic stripe bag (1) and the inner magnetic stripe bag (2).

2. The dual magnetic latching energy efficient door closure of claim 1, wherein: An auxiliary wing (6) is provided on the outer wall of the inner magnetic strip bag (2), and a first groove (6-1) is provided at the connection between the auxiliary wing (6) and the inner magnetic strip bag (2).

3. The energy-saving door seal with dual magnetic attraction according to claim 1, characterized in that: The main airbag (4) is provided with an inner support rib (5) on its inner side, and a sealing wing (5-1) is provided on the inner support rib (5).

4. The dual magnetic latching energy efficient door closure of claim 1, wherein: The side wall of the mounting chamber (7) is provided with inverted fins (8), and the outer wall of the mounting chamber (7) is provided with door sealing groove sealing fins (9).

5. The dual magnetic latching energy efficient door closure of claim 1, wherein: The main airbag (4) is provided with a central support rib (18) inside, and the two bends of the central support rib (18) are provided with a second groove (18-1).

6. The dual magnetic latching energy efficient door closure of claim 1, wherein: The bottom of the main airbag (4) is provided with a cover wing (10) facing outward.

7. The dual magnetic latching energy efficient door closure of claim 1, wherein: The outer magnetic stripe bag (1) is provided with an outer magnetic stripe (15), and the inner magnetic stripe bag (2) is provided with an inner magnetic stripe (16).

8. The dual magnetic latching energy efficient door closure of claim 1, wherein: The door seal is made of PVC, TPE, or PVC-TPU alloy. Alternatively, it can be made of foamed PVC, foamed TPE, or foamed PVC-TPU alloy.

9. A door structure, characterized by: The door seal includes a double magnetic attraction energy-saving door seal as described in any one of claims 1 to 8, wherein the double magnetic attraction energy-saving door seal is disposed on the opening side of the door shell (13), a door liner (14) is disposed on the inner side of the door shell (13), the card-mounting chamber (7) is disposed in the mounting groove of the door liner (14), a U-shell (11) is disposed on the opposite side of the door shell (13), and an inner liner (12) is disposed on the inner side of the U-shell (11).

10. The door structure of claim 9, wherein: An auxiliary suction element is provided on the inner side of the inner liner (12) at a position corresponding to the inner magnetic strip (16).

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