Refrigerator door body and double-door refrigerator

Abstract

The utility model provides a refrigerator door body and double -open door refrigerator. The refrigerator door body includes first door body and second door body who set up oppositely. First door body includes first corner part at the bottom, and first corner part includes first vertical surface, and vertical surface is opposite second door body, and vertical surface sets up condensation evaporation area, and the surface of condensation evaporation area is distributed with recess network, and the surface of condensation evaporation area is coated with hydrophilic layer. In the first vertical surface, the upper portion of condensation evaporation area is provided with a plurality of flow guide grooves connected with the condensation evaporation area, and the plurality of flow guide grooves are coated with a hydrophobic layer. The refrigerator door body of the application can reduce the dripping of the condensation of the refrigerator.

Description

Technical Field

[0001] This application relates to the field of home appliances, and more specifically, to a refrigerator door and a double-door refrigerator. Background Technology

[0002] Frequent opening and closing of the refrigerator door is a common operation during daily use. When the refrigerator door is opened and closed repeatedly, condensation easily forms on the vertical surface of the door due to temperature differences and humidity levels between the inside and outside of the refrigerator. Initially, this condensation adheres to the vertical surface as tiny water droplets. As the condensation accumulates, the droplets gradually converge and flow along the vertical surface. Due to gravity, a large amount of condensation eventually gathers at the corners of the door. At this point, the condensation dripping from the corners may fall onto the ground, forming water stains and making the floor slippery, posing a safety hazard to users. Alternatively, condensation may drip onto the lower part of the refrigerator door, affecting the user's normal experience and potentially causing accidents due to slippery hands, resulting in considerable inconvenience. Utility Model Content

[0003] This application provides a refrigerator door and a double-door refrigerator, which can reduce the dripping of condensation in the refrigerator.

[0004] Specifically, this application is implemented through the following technical solution:

[0005] One aspect of this application provides a refrigerator door, comprising:

[0006] The first and second gates are set relative to each other;

[0007] The first door body includes a first corner portion located at the bottom end. The first corner portion includes a first vertical surface, which faces the second door body. The vertical surface is provided with a condensation evaporation zone. The surface of the condensation evaporation zone is distributed with a network of grooves, and the surface of the condensation evaporation zone is coated with a hydrophilic layer.

[0008] Optional,

[0009] On the first vertical plane, a plurality of guide channels are provided above the condensation evaporation zone and connected to the condensation evaporation zone, and the plurality of guide channels are coated with a hydrophobic layer.

[0010] Optionally, the plurality of the guide channels are in a converging arc shape, with the end connected to the condensation evaporation zone being the converging end and the end away from the condensation evaporation zone being the diverging end.

[0011] Optionally, the depth of the plurality of flow channels is 0.4-0.6 mm and the width is 1.0-1.5 mm.

[0012] Optionally, the depth of each groove in the groove network is 0.28-0.5 mm, and the opening diameter is 5-7 mm.

[0013] Optionally, a heating element is provided on the first door body facing the condensation evaporation area, and the heating element is fixed on the side of the first door body facing away from the second door body.

[0014] Optionally, the second door body includes a second corner portion located at the bottom end, the second corner portion includes a second vertical surface, the second vertical surface is directly opposite the first door body, and the second vertical surface is also provided with the condensation evaporation zone.

[0015] Optionally, a plurality of the guide grooves are provided above the condensation evaporation zone on the second vertical plane.

[0016] Optionally, the first door body includes a door frame bracket, the door frame bracket includes a first sub-bracket and a second sub-bracket, the first sub-bracket and the second sub-bracket are engaged at the first corner, the first corner includes a first engaging block and a second engaging block, the first engaging block and the second engaging block are disposed on both sides of the corner connection between the first sub-bracket and the second sub-bracket, and the first engaging block and the second engaging block are engaged and fixed.

[0017] Another aspect of this application provides a double-door refrigerator, including the double-door refrigerator door as described in any of the preceding claims.

[0018] This application provides a refrigerator door and a double-door refrigerator. Firstly, the grooved network increases the specific surface area of ​​the evaporation zone, providing an extended adhesion interface for condensation and significantly slowing down the droplet coalescence process. The hydrophilic coating drives the condensation to spread into a water film by reducing surface energy, forming a temporary water-locking buffer, reducing the risk of hanging and dripping. Furthermore, the water film formation increases the contact area with air, accelerating the evaporation rate of the condensation. Over time, the condensation gradually evaporates under the combined action of the grooved network and the hydrophilic layer, greatly reducing condensation dripping and effectively minimizing the safety hazards of users' hands getting wet or slippery floors caused by condensation dripping, thus improving the refrigerator door's performance and user experience. Attached Figure Description

[0019] Figure 1 This is a partial schematic diagram of a refrigerator shown in an exemplary embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the corner of a refrigerator door shown in an exemplary embodiment of this application;

[0021] Figure 3 This is a partial cross-sectional view of the first and second doors shown in an exemplary embodiment of this application;

[0022] Figure 4 This is an exemplary embodiment of the present application showing a front view of the door frame bracket installation (left side) and exploded (right side);

[0023] Figure 5 This is a schematic diagram of the installation (left side) and explosion (right side) of a door frame bracket, as shown in an exemplary embodiment of this application.

[0024] Wherein: 100, first door body; 110, first corner; 111, first vertical surface; 200, second door body; 220, second corner; 211, second vertical surface; 300, condensation evaporation zone; 310, groove network; 320, water-blocking pad; 400, guide groove; 410, converging end; 420, diverging end; 500, heating element; 600, door frame bracket; 610, first sub-bracket; 620, second sub-bracket; 630, first locking block; 640, second locking block. Detailed Implementation

[0025] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0026] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0027] refer to Figure 1 , Figure 2 and Figure 3This application provides a refrigerator door, including a first door 100 and a second door 200 disposed opposite to each other. The first door 100 includes a first corner portion 110 located at its bottom end, the first corner portion 110 including a first vertical surface 111, the vertical surface facing the second door 200, and a condensation evaporation zone 300 provided on the vertical surface. The surface of the condensation evaporation zone 300 is distributed with a groove network 310, and the surface of the condensation evaporation zone 300 is coated with a hydrophilic layer. Firstly, the groove network 310 increases the specific surface area of ​​the evaporation zone, providing an extended adhesion interface for condensed water, significantly delaying the droplet coalescence process. The hydrophilic coating drives the condensation to spread into a water film by reducing surface energy, forming a temporary water-locking buffer, reducing the risk of hanging and dripping, and the formation of the water film also increases the contact area with air, accelerating the evaporation rate of condensation. Over time, the condensation gradually evaporates under the combined action of the groove network 310 and the hydrophilic layer, thereby greatly reducing the occurrence of condensation dripping. This effectively reduces the safety hazards caused by users' hands getting wet or the ground becoming slippery due to condensation dripping, and improves the performance of the refrigerator door and the user experience.

[0028] The hydrophilic layer can be a polyvinyl alcohol film, a nano-silica coating, etc.

[0029] Combination Figure 2 and Figure 3 In one embodiment, a plurality of guide channels 400 are provided above the condensation evaporation zone 300 on the first vertical surface 111, and are connected to the condensation evaporation zone 300. The guide channels 400 are coated with a hydrophobic layer. Structurally, the design of the guide channels 400 facilitates faster condensation accumulation in the condensation evaporation zone 300. Their vertical shape and orientation provide a clear path for the flow of condensation, allowing it to quickly and smoothly converge towards the condensation evaporation zone 300 along the guide channels 400, avoiding disorderly stagnation and accumulation of condensation at other locations on the vertical surface of the door, thereby improving the efficiency of condensation treatment. The hydrophobic layer of the guide channels 400 can accelerate the falling of condensation. The hydrophobic layer reduces the adhesion between the surface of the guide channel 400 and the condensation, making it easier for the condensation to roll or slide off the surface of the guide channel 400. In the early stage of condensation formation, the hydrophobic layer can allow some of the condensation to slide smoothly into the condensation evaporation zone 300. This can prevent excessive condensation from accumulating in the evaporation zone in the later stage, thereby reducing the working pressure faced by the condensation evaporation zone 300 and enabling the condensation evaporation zone 300 to play its role in evaporation and condensation more efficiently.

[0030] In one embodiment, multiple guide channels 400 are in a converging arc shape, with the end connecting to the condensation evaporation zone 300 being the converging end 410 and the end away from the condensation evaporation zone 300 being the diverging end 420. The converging arc-shaped guide channel 400 design allows for a larger coverage area at the diverging end 420, enabling more effective collection of condensation generated on the upper and sides of the vertical surface. As the condensation flows downwards along the arc-shaped channel, the channel gradually narrows towards the converging end 410 (i.e., the condensation evaporation zone 300). This wide-to-narrow converging structure significantly enhances the condensation's gathering capacity. Multiple guide channels 400 capture condensation from a large area (diverging end 420) and accelerate, focus, and transport it to the target condensation evaporation zone 300 using the arc-shaped converging path, greatly improving the overall efficiency from condensation generation to treatment.

[0031] In one embodiment, the depth of the plurality of guide channels 400 is 0.4-0.6 mm, specifically 0.4 mm, 0.5 mm, 0.6 mm, etc.; the width is 1.0-1.5 mm, specifically 1 mm, 1.2 mm, 1.25 mm, 1.4 mm, 1.5 mm, etc. The width range is designed to be slightly larger than or equivalent to the typical initial condensation droplet size (e.g., 0.5-2 mm). The depth of the channels effectively accommodates small downward-flowing streams of water or rolling droplets, preventing water droplets from overflowing or remaining at the channel edges due to the channels being too shallow or too narrow.

[0032] In another embodiment, the depth of each groove in the groove network 310 is 0.28-0.5 mm, for example, 0.28 mm, 0.3 mm, 0.35 mm, 0.4 mm, or 0.5 mm; the opening diameter is 5-7 mm, for example, 5 mm, 6 mm, or 7 mm. Firstly, the opening diameter is significantly larger than the diameter of the condensed water droplets, providing ample space for the condensate to spread, which facilitates the rapid flattening of small water droplets or streams into a thin water film, rather than remaining as isolated large droplets. This is key to the "temporary water-locking buffer" and "increased air contact area." The depth dimension here allows the hydrophilic layer to quickly absorb and spread the condensate, accelerating the evaporation rate.

[0033] Combination Figure 3 A heating element 500 is installed on the first door 100, directly opposite the condensation evaporation zone 300. The heating element 500 is fixed to the side of the first door 100 facing away from the second door 200. The heat generated by the heating element 500 can be conducted to the condensation evaporation zone 300 through the door frame material, gently heating the evaporation zone and actively and efficiently accelerating the condensation evaporation process. Especially under high humidity or high load conditions, it fundamentally eliminates the possibility of condensation accumulation and dripping, which is the core guarantee for achieving "zero dripping". The heating element 500 can be designed to operate in a periodic mode, ensuring that this function operates efficiently and reliably while also meeting the requirements of low energy consumption and long equipment life.

[0034] refer to Figure 3 In one embodiment, the second door 200 includes a second corner portion 220 located at its bottom end. The second corner portion 220 includes a second vertical surface 211, which faces the first door 100. The second vertical surface 211 is also provided with a condensation evaporation area 300. Similarly, the condensation evaporation area 300 provided here can also reduce condensation dripping through the diffusion of the hydrophilic membrane and by increasing the evaporation area.

[0035] In one embodiment, a plurality of guide channels 400 are provided above the condensation evaporation zone 300 on the second vertical surface 211. Similarly, the plurality of guide channels 400 can guide the condensation to slide into the condensation evaporation zone 300 in the early stage of formation, thereby improving the efficiency of condensation evaporation.

[0036] refer to Figure 4 and Figure 5 In one embodiment, the first door body 100 includes a door frame support 600, which includes a first sub-support 610 and a second sub-support. The first sub-support 610 and the second sub-support are engaged at a first corner 110. The first corner 110 includes a first engaging block 630 and a second engaging block, which are located on both sides of the corner connection between the first sub-support 610 and the second sub-support, and are engaged and fixed. This splits the complex overall door frame structure into two relatively simple sub-supports (the first sub-support 610 and the second sub-support), significantly reducing the structural complexity and geometric processing difficulty of individual parts. Especially for areas like the first corner 110, which typically have complex three-dimensional curved surfaces or require high-precision fit, separate manufacturing makes it easier to ensure accuracy and quality than integral molding. The first engaging block 630 and the second engaging block are designed on both sides of the connection, providing symmetrical and effective engaging forces. Snap-fit ​​is a quick connection method that requires no additional fasteners (such as screws). Assembly can be completed simply by aligning the two sub-brackets and applying pressure, which significantly improves assembly efficiency.

[0037] In one embodiment, please refer to Figure 3 At the lower end of the condensation evaporation zone 300, the first vertical surface 111 and the second vertical surface 211 are respectively provided with water-blocking pads 320, which are inclined upwards. Here, "up and down" refers to the relative up and down position under normal use of the refrigerator.

[0038] This application also provides a double-door refrigerator, such as a French door refrigerator, a cross-door refrigerator, and a T-type refrigerator, including the refrigerator door provided in any of the above embodiments.

[0039] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A refrigerator door, characterized in that, include: The first gate (100) and the second gate (200) are set relative to each other; The first door body (100) includes a first corner portion (110) located at the bottom end. The first corner portion (110) includes a first vertical surface (111). The first vertical surface (111) faces the second door body (200). The first vertical surface (111) is provided with a condensation evaporation area (300). The surface of the condensation evaporation area (300) is distributed with a groove network (310), and the surface of the condensation evaporation area (300) is coated with a hydrophilic layer.

2. The refrigerator door as described in claim 1, characterized in that, On the first vertical surface (111), a plurality of guide channels (400) are provided above the condensation evaporation zone (300) and are connected to the condensation evaporation zone (300). The plurality of guide channels (400) are coated with a hydrophobic layer.

3. The refrigerator door as described in claim 2, characterized in that, The multiple guide channels (400) are in a converging arc shape, with the end connected to the condensation evaporation zone (300) being the converging end (410) and the end away from the condensation evaporation zone (300) being the diverging end (420).

4. The refrigerator door as described in claim 3, characterized in that, The depth of the plurality of flow channels (400) is 0.4-0.6 mm and the width is 1.0-1.5 mm.

5. The refrigerator door as described in claim 1, characterized in that, The depth of each groove in the groove network (310) is 0.28-0.5 mm, and the opening diameter is 5-7 mm.

6. The refrigerator door as described in any one of claims 1 to 5, characterized in that, A heating element (500) is provided on the first door body (100) facing the condensation evaporation area (300), and the heating element (500) is fixed on the side of the first door body (100) facing away from the second door body (200).

7. The refrigerator door as described in claim 2, characterized in that, The second door body (200) includes a second corner portion (220) located at the bottom end. The second corner portion (220) includes a second vertical surface (211). The second vertical surface (211) faces the first door body (100). The second vertical surface (211) is also provided with the condensation evaporation zone (300).

8. The refrigerator door as described in claim 7, characterized in that, On the second vertical surface (211), a plurality of the guide grooves (400) are provided above the condensation evaporation zone (300).

9. The refrigerator door as described in claim 2, characterized in that, The first door body (100) includes a door frame bracket (600), the door frame bracket (600) includes a first sub-bracket (610) and a second sub-bracket, the first sub-bracket (610) and the second sub-bracket are engaged at the first corner (110), the first corner (110) includes a first engaging block (630) and a second engaging block, the first engaging block (630) and the second engaging block are disposed on both sides of the corner connection between the first sub-bracket (610) and the second sub-bracket, and the first engaging block (630) and the second engaging block are engaged and fixed.

10. A double-door refrigerator, characterized in that, Includes the double-door refrigerator door as described in any one of claims 1 to 9.

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