Refrigerator door and long-lasting fresh-keeping refrigerator

Abstract

The present invention discloses a refrigerator door and a long-term fresh-keeping refrigerator, belonging to the field of fresh-keeping devices. The refrigerator door of the present invention is used to seal the cold storage compartment. By providing a fresh-keeping box on the refrigerator door, a closed narrow space can be formed, thereby enabling the vertical placement of vegetables, reducing energy loss during storage. The closed space can reduce the respiration of vegetables and also play a role in fresh-keeping. The structure of this solution can greatly reduce the impact of external temperature fluctuations on the temperature inside the fresh-keeping box, and has the effect of low-temperature constant temperature fresh-keeping. When used in a refrigerator, it can achieve long-term fresh-keeping.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh-keeping devices, and more particularly to a long-lasting fresh-keeping refrigerator. Background Art

[0002] Common refrigerators on the market are generally direct-cooling and air-cooling. However, as refrigerator sizes increase, direct-cooling refrigerators are becoming less popular due to their relatively poor cooling performance and icing problems. Frost-free refrigerators, primarily air-cooling, are becoming more popular. Existing refrigerators generally use various methods, such as temperature and humidity control and air circulation, to slow food spoilage and preserve food. Fruits and vegetables are the most common items stored in refrigerators, with leafy greens being particularly difficult to preserve. As people grow older, they are hoarding vegetables, and the demand for long-term freshness preservation is growing.

[0003] It's generally accepted that the lower the temperature, the better the preservation effect. For vegetables, a lower temperature is desirable within a certain temperature range. Furthermore, airtightness is also considered an important factor in preserving freshness, so a good seal is required.

[0004] In Korean patent KR1020120081925, a refrigerator vegetable compartment with a vacuum mode is disclosed. In this scheme, the vacuum degree in the vacuum vegetable compartment of the refrigerator can be adjusted according to the vegetables, fruits and mixed modes. More specifically, the vacuum degree in the sealed vegetable compartment can be adjusted according to the storage materials stored in the refrigerator to maintain the optimal freshness of each vegetable, fruit and mixed mode by dividing and allocating them according to the vegetables, fruits and mixed modes.

[0005] This Korean patented solution preserves fruits and vegetables by regulating the vacuum level within a sealing device. However, in actual use, it was found that while this achieved good preservation results, it also resulted in significant nutritional losses in the vegetables. Leafy greens, in particular, would decay or shrivel within a few hours after being removed from the refrigerator.

[0006] Chinese patent CN2660440Y states that some vegetables lose nutrients when stored flat. To preserve the nutrients of leafy greens, a larger storage space is provided on the refrigerator door to accommodate larger vegetables. However, experiments have shown that this method maintains freshness for a shorter time than sealed storage methods.

[0007] Chinese Patent No. 201821115028.X discloses a fresh-keeping device for agricultural fruits and vegetables, comprising a functional box and a device body. An ozone generator is installed within the functional box. During the preservation process, ozone generated by the ozone generator is conducted through an air duct to an ozone release mechanism within the device body, which then releases the generated ozone to the fruits and vegetables in need of preservation. This not only efficiently and conveniently extends the shelf life of the fruits and vegetables, but also disinfects and sterilizes the fruits and vegetables with the ozone generated by the ozone generator. This patent uses ozone sterilization for preservation, which requires significant refrigerator modification. It is a specialized fresh-keeping device that cannot be integrated with current household refrigerators, resulting in relatively poor practical results.

[0008] In summary, there are many explorations and implementation methods for using refrigerators to preserve vegetables in the existing technology, but they cannot achieve a good long-term preservation effect, and further exploration and research is needed. Summary of the Invention

[0009] 1. Technical problem to be solved by the invention

[0010] The purpose of the present invention is to overcome the problem of limited preservation time in the prior art and to provide a refrigerator door and a long-term preservation refrigerator, which can inhibit the respiration of vegetables, reduce energy loss and achieve long-term preservation.

[0011] 2. Technical solution

[0012] In order to achieve the above object, the technical solution provided by the present invention is:

[0013] A refrigerator door of the present invention is used to enclose a refrigerator compartment of a refrigerator. A fresh-keeping box is installed inside the refrigerator door. The fresh-keeping box includes a box body and an insulating door, wherein the insulating door is used to enclose the interior space of the box body.

[0014] Furthermore, the box body protrudes from the outer edge of the refrigerator door;

[0015] The fresh-keeping box covers the main mounting area on the inner side of the refrigerator door. There are a storage box and a blocking member inside the fresh-keeping box. Vegetables can be placed in the storage box. The blocking member at least partially extends horizontally in the horizontal direction, and can store vegetable leaves in the box body.

[0016] Furthermore, both ends of the blocking member are movably connected to the side panels of the box body, the connection point is close to the insulation door, and a friction damping or positioning element is formed between the blocking member and the side panels, so that the blocking member can be positioned at different heights.

[0017] Furthermore, sliders are provided on both sides of the blocking member, and slide rails are provided on the side panels, and the sliders cooperate with the slide rails.

[0018] Furthermore, the blocking member includes a transversely arranged baffle and connecting rods located at both ends of the baffle, and the other end of the connecting rod is rotatably mounted on the side plate of the box body, so that the baffle can be flipped upward or downward.

[0019] Furthermore, the blocking member is arranged on the inner side of the heat-insulating door and protrudes from the inner side, and can push the scattered objects into the box body when the heat-insulating door is closed, for example, push vegetable leaves into the box body.

[0020] Furthermore, the blocking member is detachably connected to the box body.

[0021] Furthermore, the bottom and top of the box body are provided with air holes as air circulation channels inside the box body.

[0022] Furthermore, the refrigerator door is equipped with two fresh-keeping boxes in the upper and lower directions, each fresh-keeping box is not less than 35 cm in height, and there is a gap between the two fresh-keeping boxes;

[0023] Or: the refrigerator door is equipped with two fresh-keeping boxes in the upper and lower directions, each fresh-keeping box is not less than 35 cm in height, and an atmosphere-controlled box is installed between the two fresh-keeping boxes.

[0024] Furthermore, a plurality of storage boxes are provided in the box body, and the position height of the storage box located at the top can be adjusted in the box body.

[0025] Furthermore, the refrigerator door includes an outer door panel and an inner frame arranged along the edge of the outer door panel. The inner frame is a convex rib structure, and a positioning plate is arranged on the inner side thereof; hanging ears are arranged on both sides of the fresh-keeping box, and the hanging ears are engaged with the positioning plate.

[0026] Furthermore, the hanging ear is an annular structure, including a convex arc plate, a rib plate and a back plate connected to each other, the rib plate being arranged on both sides of the convex arc plate as an arc transition; a support rod is arranged between the convex arc plate and the back plate and rests against the middle part of the convex arc plate;

[0027] The positioning plate includes a positioning A plate and a positioning B plate, which form a mounting groove. An arc-shaped groove is provided on the inner side of the positioning B plate for positioning the convex arc plate.

[0028] A long-lasting fresh-keeping refrigerator of the present invention comprises a refrigerator body and the aforementioned refrigerator door, wherein the refrigerator door is used to seal the refrigeration chamber in the refrigerator body. When the door is closed, the heat-insulating door and at least a portion of the box body extend into the refrigeration chamber.

[0029] Furthermore, an air inlet is provided in the refrigerating chamber, and the air inlet is located on a side of the refrigerator body opposite to the refrigerator door.

[0030] Furthermore, the heat-insulating door and the refrigerator door are both connected by a pivot, and the door axis of the heat-insulating door and the door axis of the refrigerator door are located on the same side, forming a side-opening door structure.

[0031] Furthermore, the heat-insulating door is a non-metallic structure.

[0032] A long-lasting fresh-keeping refrigerator of the present invention comprises a refrigerator body and a refrigerator door, wherein the refrigerator door is used to close the refrigerator compartment;

[0033] A fresh-keeping box is installed on the inner side of the refrigerator door, and the fresh-keeping box includes a box body and an insulating door, wherein the insulating door is used to seal the inner space of the box body;

[0034] An air inlet is provided in the refrigerating chamber, and the air inlet is located on a side of the refrigerator body opposite to the insulation door;

[0035] The fresh-keeping box includes a storage box and a blocking member. Vegetables can be placed in the storage box. The blocking member at least partially extends horizontally to store vegetable leaves in the box body.

[0036] Furthermore, ventilation holes are provided on the box body or the heat-insulating door.

[0037] Furthermore, the heat-insulating door is detachably connected to the box body.

[0038] Furthermore, the blocking member adopts the structure of the blocking member described in any one of claims 2-6.

[0039] Furthermore, a hook is provided at the upper end of the box body.

[0040] 3. Beneficial effects

[0041] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0042] (1) The refrigerator door of the present invention is used for a cold storage room. By arranging a fresh-keeping box on the refrigerator door, a closed narrow space can be formed, thereby enabling the vertical placement of vegetables and reducing energy loss when storing them. The closed space can reduce the respiration of vegetables and also play a role in preserving freshness. The structure of this solution can greatly reduce the impact of external temperature fluctuations on the temperature inside the fresh-keeping box, and has the effect of low-temperature constant temperature preservation. When used in a refrigerator, it can achieve long-term freshness preservation.

[0043] (2) The present invention uses a barrier member with movable ends in the fresh-keeping box, which has a wide range of applications. In order to store longer items, the storage box generally needs to be set at a higher height. However, due to the small thickness of the refrigerator door, small items cannot be stored. The structure of the barrier member in this solution can achieve height adjustment, thereby improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A structural diagram of a refrigerator cross section;

[0045] Figure 2 A schematic diagram of an implementation of a fresh-keeping box on a refrigerator door;

[0046] Figure 3 A schematic diagram of the structure of the flip-type blocking member;

[0047] Figure 4 A schematic diagram of a structure in which a blocking member is provided on an insulation door;

[0048] Figure 5 This is a schematic diagram of a structure with two fresh-keeping boxes;

[0049] Figure 6 This is a schematic diagram of the installation structure of the hanging ears on the fresh-keeping box.

[0050] Explanation of the numbers in the schematic diagram:

[0051] 1. Refrigerator body; 101. Refrigerator compartment;

[0052] 2. Refrigerator door; 21. Outer door panel; 22. Inner frame; 221. Positioning plate A; 222. Positioning plate B;

[0053] 3. Fresh-keeping box;

[0054] 31. Box body; 311. Side panels; 312. Top panel; 313. Ventilation holes; 314. Support blocks;

[0055] 32. Insulated door; 33. Hanging ears; 331. Convex arc board; 332. Skipping board; 333. Support pole; 334. Back board; 335. Anti-slip board;

[0056] 34. Light box;

[0057] 4. Storage box; 41. Hanging slot;

[0058] 5. Blocking member; 51. Baffle; 52. Connecting rod; 53. Shaft hole;

[0059] 6. Controlled atmosphere box. DETAILED DESCRIPTION

[0060] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0061] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0062] Combine Figure 1 , for a common refrigerator, generally comprises a refrigerator body 1, the refrigerator body 1 is provided with a refrigeration part and a freezing part, and is provided with corresponding door bodies. In order to realize the preservation of vegetables by the refrigerator, the present application improves the existing solution.

[0063] A refrigerator door of this embodiment is used to enclose the refrigerator compartment 101 of the refrigerator. A fresh-keeping box 3 is installed inside the refrigerator door 2. The fresh-keeping box 3 includes a box body 31 and an insulating door 32, wherein the insulating door 32 is used to enclose the inner space of the box body 31.

[0064] The heat-insulating door 32 must be made of non-metallic materials, such as glass plates, acrylic plates, etc., to achieve better heat-insulating effects.

[0065] According to research, temperature fluctuations have a significant impact on vegetable freshness, and frequent opening and closing of refrigerator doors is the main cause of temperature fluctuations. The fresh-keeping box 3 provided in this embodiment adopts a closed structure, thereby avoiding large temperature fluctuations.

[0066] By using the insulating door 32 made of non-metallic material, on the one hand, the refrigerator door is in a closed state for a long time, and the temperature in the refrigerator chamber 101 can be transferred to the fresh-keeping box 3; on the other hand, it is less sensitive to temperature than metal, which can prevent the temperature from quickly reacting to the fresh-keeping box 3 when the refrigerator door is opened, thereby making the temperature in the fresh-keeping box 3 fluctuate as little as possible.

[0067] Combine Figure 2 The refrigerator door 2 includes an outer door panel 21, which is the panel that directly contacts the outside. The box body 31 protrudes from the outer edge of the refrigerator door 2, meaning that the box body 31 is higher than the inner side of the outer door panel 21. Due to the limited thickness of the outer door panel 21, simply providing a recess as a storage space would result in limited volume. Therefore, in this embodiment, the box body 31 adopts a protruding structure.

[0068] In this embodiment, the fresh-keeping box 3 covers the main mounting area on the inner side of the refrigerator door 2. There are a storage box 4 and a blocking member 5 in the fresh-keeping box 3. Vegetables can be placed in the storage box 4. The blocking member 5 extends at least partially in the horizontal direction, and can store vegetable leaves in the box body 31.

[0069] Conventional refrigerator doors typically have a mounting area on the inside for storing items such as bottles. While some doors also have sealed areas for storing cosmetics, these sealed areas are merely independent storage boxes, arranged alongside other open storage boxes. In this embodiment, the fresh-keeping box 3 is provided to enclose this mounting area, allowing for multiple storage boxes to be placed within the fresh-keeping box 3.

[0070] To prevent nutritional loss in vegetables, the fresh-keeping area within the fresh-keeping box 3 is narrow and narrow, allowing vegetables to be stored vertically. However, this also makes it easy for longer vegetables, such as celery, to fall over. Furthermore, the leaves of vegetables placed vertically spread outward, making them easily caught by the insulated door 32.

[0071] To address this issue, a portion of the barrier 5 can extend horizontally, where horizontal refers to a direction perpendicular to the side panels 311 of the box body 31. The barrier 5 can be rotated, flipped, slid, or manually moved. Before the insulating door 32 is closed, the barrier 5 keeps the scattered branches and leaves contained within the interior of the box body 31, while preventing long-diameter vegetables from falling outward.

[0072] As an embodiment of the blocking member 5, its two ends are movably connected to the side panels 311 of the box body 31, the connection point is close to the insulation door 32, and a friction damping or positioning element is formed between the blocking member 5 and the side panels 311, so that the blocking member 5 can be positioned at different heights.

[0073] The blocking member 5 can be a 1-3 cm plate structure, with sliders provided on both sides, and a slide rail provided on the side plate 311, and the sliders cooperate with the slide rails. Figure 2 As shown in , the slide rail can be a rib provided on the side plate 311, which is provided up and down, and the end of the slider is grooved and snapped into the rib, so that the blocking member can slide up and down.

[0074] In order to make the blocking member 5 stay at a predetermined height, multiple sets of protrusions can be provided on the slide rail for positioning the blocking member 5. For ease of processing and aesthetics, the blocking member 5 can be a smaller structure, and a decorative plate can be clamped on the blocking member, which is roughly a 1-5 cm plate structure.

[0075] As another embodiment of positioning, positioning can also be performed by friction damping. For example, the slider or the slide rail has a certain surface roughness so that it has a certain load-bearing capacity, and the friction between the two is used to prevent the blocking member 5 from sliding freely.

[0076] As another embodiment of the blocking member 5, Figure 3 , the blocking member 5 adopts a flip structure.

[0077] Specifically, the blocking member 5 includes a transversely disposed baffle 51 and connecting rods 52 at either end of the baffle. The other end of the connecting rod 52 is rotatably mounted on the side panel 311 of the box body 31, allowing the baffle 51 to be tilted upward or downward. As a rotatable mounting structure, the connecting rod 52 has a short shaft perpendicular to the side panel 311, and the side panel 311 has an axis hole 53 for mounting the rotating shaft. Alternatively, the connecting rod 52 has an axis hole and the side panel 311 is provided with a short shaft, allowing the two to rotate relative to each other.

[0078] As a further optimization of this embodiment, both ends of the baffle 51 have protrusions. When the baffle 51 rotates to the bottom or the top, the protrusions can position the blocking member 5 through friction or the grooves on the side panels.

[0079] In some other embodiments, a corresponding positioning member may be provided between the short shaft and the shaft hole, which will automatically engage when rotated to the corresponding position; positioning may also be achieved by magnetic attraction or the like, without specific limitation.

[0080] It is worth noting that when the baffle 51 is at the lower position, it is still higher than the upper end of the storage box 4. In actual application scenarios, Chinese cabbage, lettuce, and seasonal greens are relatively small, but when placed vertically, their branches and leaves are in an expanded state. At this time, the baffle 51 can be flipped to the lower position to collect the leaves, making it easier to close the insulation door 32.

[0081] The flip structure will not affect the taking and placing of vegetables, and the operation is convenient.

[0082] Combine Figure 4 In other embodiments of the blocking member 5 , it may also be provided on the heat-insulating door 32 .

[0083] As a specific embodiment, the blocking member 5 is disposed on and protrudes from the inner side of the heat-insulating door 32. For example, the blocking member 5 is in the shape of a concave ring and is perpendicular to the heat-insulating door 32. When the heat-insulating door 32 is closed, the blocking member 5 first contacts the vegetable leaves, thereby pushing the vegetable leaves into the box body 31 and preventing the vegetable branches and leaves from being pinched.

[0084] In a preferred embodiment, the height of the blocking member 5 protruding from the inner side of the heat-insulating door 32 can be limited to 0.8 to 3 cm to avoid squeezing the stored items. The heat-insulating door 32 can also be provided with multiple sets of mounting positions or sliding members for adjusting the mounting height of the blocking member 5.

[0085] In combination with the above embodiments, a blocking member 5 is provided in the storage box 4. In order to adapt to different scenarios or to facilitate disassembly and replacement, in some embodiments, the blocking member 5 is detachably connected to the box body 31.

[0086] The detachable connection in this embodiment does not necessarily require a separate detachable structure; it can be combined with the existing structure of the blocking member 5. For example, in a sliding connection or a rotating connection, the blocking member has a certain length so that it has a certain bending deformation ability, thereby allowing the slider or short shaft to be disengaged from the connection structure.

[0087] As a guide to use, the barrier 5 can be used to block vegetable branches and leaves, but the fresh-keeping box 3 does not need to be used only for vegetables. The barrier 5 can also be used to prevent other slender items from falling over. The barrier 5 can also be removed to use the fresh-keeping box 3 according to the usage conditions. Correspondingly, the insulated door 32 can also be configured as a detachable structure for replacement or for use with the box body open.

[0088] Only one storage box 4 can be provided at the bottom of the box body 31, or multiple storage boxes 4 can be provided in the box body, each of which can be individually detached. The detachable structure can be provided with a support block 314 on the inner side of the side plate 311, and hanging grooves 41 are provided at both ends of the storage box 4, and the hanging grooves 41 can be used to hang the storage box on the support block 314.

[0089] Furthermore, the height of the storage box 4 located above can be adjusted in the box body 31. This provides enough space below to accommodate larger items.

[0090] Among existing fresh-keeping structures, sealed storage offers the best preservation results. This is primarily due to the reduced oxygen content in the sealed space, which inhibits vegetable respiration and reduces nutrient conversion, thereby maintaining freshness. However, research indicates that after harvesting, vegetables undergo respiration and transpiration. Sealing inhibits respiration, and transpiration can lead to excessive humidity within the sealed space, resulting in frost and condensation in low-temperature environments, compromising freshness.

[0091] In addition, vegetables still maintain a certain growth capacity after being picked, and have a tendency to grow upright. When they are placed flat, they will continue to consume energy to overcome potential energy. This is why vegetables that have been placed for a long time may have relatively good external color, but their nutritional value is lost.

[0092] For the above reasons, the fresh-keeping box 3 provided in the aforementioned embodiment is designed to create an enclosed space to reduce air flow, but does not require it to be completely sealed. For example, when the insulating door 32 is closed, it still has a certain degree of air permeability, or a microporous structure is formed between the insulating door 32 and the box body for air permeability, thereby preventing excessive humidity in the fresh-keeping box.

[0093] As another embodiment of the breathable structure, breathable holes may be provided.

[0094] Specifically, combined Figure 5 The bottom and top of the box body 31 are both provided with air holes 313 as air circulation channels inside the box body 31.

[0095] The top of the box body 31 is a top plate 312, and the bottom is a bottom plate. The air holes 313 are provided on the top plate 312 and the bottom plate. The air holes 313 can be a single hole or a plurality of through-hole structures arranged in an arranged manner.

[0096] In practical applications, in order to promote plant growth or based on sterilization considerations, a light box 34 can be provided on the top plate, with a sterilization lamp or a growth-promoting lamp provided inside.

[0097] This embodiment provides a dual fresh-keeping box solution, such as Figure 5 shown.

[0098] For large refrigerators with independent refrigeration and fresh-keeping areas, the door body is relatively long. In this case, two fresh-keeping boxes 3 are installed in the upper and lower directions of the refrigerator door 2. Each fresh-keeping box 3 is not less than 35 cm high, so that there is a certain amount of space inside. The two fresh-keeping boxes 3 can adopt different structures.

[0099] Furthermore, in order to have better ventilation, there is a gap between the two fresh-keeping boxes 3, and the bottom and top of the fresh-keeping boxes can circulate with the air in the refrigeration chamber.

[0100] As another improved structure, two fresh-keeping boxes 3 are installed in the upper and lower directions of the refrigerator door 2. Each fresh-keeping box 3 is at least 35 cm tall. A controlled atmosphere box 6 is installed between the two fresh-keeping boxes 3. The controlled atmosphere box 6 has openings on both the top and bottom for connecting to the air holes 313 of the fresh-keeping boxes 3. A sterilizing or deodorizing device, such as activated carbon, can also be installed in the controlled atmosphere box 6.

[0101] In combination with the above embodiments, the fresh-keeping box 3 can be fixed to the outer door panel 21 by bolts to prevent it from falling off, and does not need to be disassembled during normal use.

[0102] As another embodiment, the fresh-keeping box 3 may also adopt a split mounting structure.

[0103] Combine Figure 5、 Figure 6 In this embodiment, the refrigerator door 2 includes an outer door panel 21 and an inner frame 22 disposed along the edge of the outer door panel 21. The inner frame 22 is a ribbed structure, with ribs formed on at least two vertical edges of the outer door panel 21, and a positioning plate disposed on its inner side. The crisper box 3 is provided with hanging ears 33 on both sides, which engage with the positioning plates to facilitate installation. Most existing refrigerator doors 2 have positioning plates. Using a split structure enables modular production of refrigerators, allowing the crisper box to be adapted to existing refrigerator structures for mounting and use.

[0104] Since the fresh-keeping box 3 used covers the main mounting area and is heavy, this embodiment provides an improved mounting structure.

[0105] Specifically, the hanging ear 33 is an annular structure, including a convex arc plate 331, a rib-jumping plate 332 and a back plate 334 connected to each other. The rib-jumping plate 332 is arranged on both sides of the convex arc plate 331 as an arc-shaped transition.

[0106] The positioning plate includes a positioning A plate 221 and a positioning B plate 222 , which are arranged in parallel to form a vertical installation groove, and an arc-shaped groove is provided on the inner side of the positioning B plate 222 for positioning the convex arc plate 331 .

[0107] During installation, the lug 33 is inserted from above into the mounting groove between the positioning plate A 221 and the positioning plate B 222. Downward pressure is applied, causing the convex arc plate 331 to deform, slide downward, and engage into the arc groove, completing the installation of the fresh-keeping box 3. The rib-jumping plate 332 is a small arc-shaped structure that can extend the circumferential length, providing greater deformation capacity for the convex arc plate 331 while preventing the convex arc plate 331 from breaking due to emergency concentration at both ends.

[0108] As an improvement, a support rod 333 is provided between the convex arc plate 331 and the back plate 334 and abuts against the middle part of the convex arc plate 331 to strengthen the matching strength between the convex arc plate 331 and the arc groove.

[0109] Furthermore, a transverse anti-slip plate 334 may be provided on the top of the hanging ear 33, which can also provide a certain supporting force and play a positioning role.

[0110] In combination with the refrigerator doors in the above embodiments, this embodiment provides a long-term fresh-keeping refrigerator, including a refrigerator body 1 and the aforementioned refrigerator door 2. The refrigerator door 2 is used to enclose the refrigeration chamber 101 in the refrigerator body 1. When the door is closed, the heat-insulating door 32 and at least part of the box body 31 extend into the refrigeration chamber 101.

[0111] Since the heat-insulating door 32 seals the space inside the box body, and the heat-insulating door 32 does not have the good thermal conductivity of metal, it and part of the box body are extended into the refrigerating chamber 101 to shorten the temperature drop time inside the box body 31.

[0112] Furthermore, an air inlet is provided in the refrigerator compartment 101, located on the side of the refrigerator body 1 opposite the refrigerator door 2. Because the refrigeration in the refrigerator compartment 101 also circulates within a certain temperature range, the distance between the insulated door 32 and the air inlet is maximized in this embodiment to prevent the circulating air from affecting the temperature inside the box body 31, further reducing temperature fluctuations.

[0113] Here, the "long-term" preservation refers to extending the preservation time, and does not require the preservation time to reach a fixed period or a set absolute period.

[0114] In some embodiments, the heat-insulating door 32 and the refrigerator door 2 are both pivotally connected, with the door hinge of the heat-insulating door 32 and the door hinge of the refrigerator door 2 located on the same side, forming a side-opening structure. In this structure, the heat-insulating door 32 is prevented from blocking the view, making it more convenient to store and retrieve items in the fresh-keeping box.

[0115] Another embodiment of a long-lasting fresh-keeping refrigerator includes a refrigerator body 1 and a refrigerator door 2. The refrigerator door 2 is used to enclose the refrigerator's refrigeration compartment 101. A fresh-keeping box 3 is mounted inside the refrigerator door 2. The fresh-keeping box 3 includes a box body 31 and an insulated door 32. The insulated door 32 is used to enclose the interior space of the box body 31. An air inlet is provided within the refrigeration compartment 101, located on the side of the refrigerator body 1 opposite the insulated door 32.

[0116] The fresh-keeping box 3 contains a storage box 4 and a blocking member 5 . Vegetables can be placed in the storage box 4 . The blocking member 5 at least partially extends horizontally to store vegetable leaves in the box body 31 .

[0117] In different implementations, the blocking member may adopt the structure of the blocking member 5 in the aforementioned embodiments. A vent hole 313 may also be provided on the box body 31 or the heat-insulating door 32 to form a ventilation channel and adjust the internal humidity.

[0118] As a further improvement, a hook can be installed on the top of the box for hanging items. Vegetables are often packaged in plastic bags after purchase. With this hook, the plastic bag and vegetables can be hung directly on the hook to maintain an upright position. The oxygen content in the plastic bag is lower, which further inhibits respiration.

[0119] In the present invention, vertical storage of vegetables in a closed area is achieved, thereby suppressing the respiration and energy loss of vegetables and other items. Through a certain breathable structure, the humidity in the closed space can be adjusted to avoid frost and condensation, thereby achieving long-term preservation of fruits and vegetables.

[0120] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A refrigerator door (2) for closing a refrigerator compartment (101) of a refrigerator, characterized in that: A fresh-keeping box (3) is installed inside the refrigerator door (2), and the fresh-keeping box (3) comprises a box body (31) and an insulating door (32), wherein the insulating door (32) is used to seal the inner space of the box body (31); Furthermore, the box body (31) protrudes from the outer edge of the inner side of the refrigerator door (2); The fresh-keeping box (3) covers the main mounting area on the inner side of the refrigerator door (2), and a storage box (4) and a blocking member (5) are provided inside the fresh-keeping box (3). The blocking member (5) at least partially extends in a horizontal direction and can store vegetable leaves in the box body (31); Both ends of the blocking member (5) are movably connected to the side panels (311) of the box body (31), with the connection point close to the heat-insulating door (32), and a positioning element is formed between the blocking member (5) and the side panels (311), so that the blocking member (5) can be positioned at different heights; The blocking member (5) includes a baffle (51) arranged transversely, and connecting rods (52) located at both ends of the baffle, and the other end of the connecting rod (52) is rotatably mounted on the side plate (311) of the box body (31), so that the baffle (51) can be turned upward or downward; The bottom and top of the box body (31) are both provided with air holes (313) serving as air circulation channels inside the box body (31).

2. The refrigerator door according to claim 1, characterized in that: The blocking member (5) is detachably connected to the box body (31).

3. The refrigerator door according to claim 1, characterized in that: The refrigerator door (2) is provided with two fresh-keeping boxes (3) in the upper and lower directions, each fresh-keeping box (3) has a height of not less than 35 cm, and there is a gap between the two fresh-keeping boxes (3); Or: the refrigerator door (2) is provided with two fresh-keeping boxes (3) in the upper and lower directions, each fresh-keeping box (3) has a height of not less than 35 cm, and an atmosphere-controlled box (6) is provided between the two fresh-keeping boxes (3).

4. The refrigerator door according to claim 1, characterized in that: A plurality of storage boxes (4) are arranged in the box body (31), and the position height of the storage box (4) located at the top can be adjusted in the box body (31).

5. The refrigerator door according to claim 1, characterized in that: The refrigerator door (2) comprises an outer door panel (21) and an inner frame (22) arranged along the edge of the outer door panel (21); the inner frame (22) is a convex rib structure, and a positioning plate is arranged on the inner side thereof; hanging ears (33) are arranged on both sides of the fresh-keeping box (3), and the hanging ears (33) are engaged with the positioning plate.

6. The refrigerator door according to claim 5, characterized in that: The hanging ear (33) is an annular structure, comprising a convex arc plate (331), a rib-jumping plate (332) and a back plate (334) connected to each other, wherein the rib-jumping plate (332) is arranged on both sides of the convex arc plate (331) as an arc transition; A support rod (333) is provided between the convex arc plate (331) and the back plate (334), and is pressed against the middle portion of the convex arc plate (331); The positioning plate comprises a positioning A plate (221) and a positioning B plate (222), both of which form a mounting groove, and an arc-shaped groove is provided on the inner side of the positioning B plate (222) for positioning the convex arc plate (331).

7. A long-lasting fresh-keeping refrigerator, characterized by: The refrigerator comprises a refrigerator body (1) and a refrigerator door (2) according to any one of claims 1 to 6, wherein the refrigerator door (2) is used to close a refrigeration chamber (101) in the refrigerator body (1); in a closed state, the heat-insulating door (32) and at least a part of the box body (31) extend into the refrigeration chamber (101).

8. The long-lasting fresh-keeping refrigerator according to claim 7, characterized in that: An air inlet is provided in the refrigerating chamber (101), and the air inlet is located on a side of the refrigerator body (1) opposite to the refrigerator door (2).

9. The long-lasting fresh-keeping refrigerator according to claim 8, characterized in that: The heat-insulating door (32) and the refrigerator door (2) are both connected in a pivotal manner, and the door axis of the heat-insulating door (32) and the door axis of the refrigerator door (2) are located on the same side, forming a side-opening door structure.

10. The long-lasting fresh-keeping refrigerator according to claim 7, characterized in that: The heat-insulating door (32) is a non-metallic structure.

11. A long-lasting fresh-keeping refrigerator, comprising a refrigerator body (1) and a refrigerator door (2), wherein the refrigerator door (2) is used to close a refrigeration chamber (101) of the refrigerator, and is characterized in that: A fresh-keeping box (3) is installed inside the refrigerator door (2), and the fresh-keeping box (3) comprises a box body (31) and an insulating door (32), wherein the insulating door (32) is used to seal the internal space of the box body (31); and air holes (313) are provided on the box body (31) or the insulating door (32); An air inlet is provided in the refrigerating chamber (101), and the air inlet is located on a side of the refrigerator body (1) opposite to the heat-insulating door (32); The fresh-keeping box (3) contains a storage box (4) and a blocking member (5), wherein vegetables can be placed in the storage box (4), and the blocking member (5) at least partially extends in a horizontal direction, and can store vegetable leaves in the box body (31); Both ends of the blocking member (5) are movably connected to the side panels (311) of the box body (31), with the connection point close to the heat-insulating door (32), and a positioning element is formed between the blocking member (5) and the side panels (311), so that the blocking member (5) can be positioned at different heights; The blocking member (5) comprises a transversely arranged baffle (51) and connecting rods (52) located at both ends of the baffle, and the other end of the connecting rod (52) is rotatably mounted on the side plate (311) of the box body (31), so that the baffle (51) can be turned upward or downward.

12. The long-lasting fresh-keeping refrigerator according to claim 11, characterized in that: The blocking member (5) is detachably connected to the box body (31).

13. The long-lasting fresh-keeping refrigerator according to claim 11, characterized in that: The heat-insulating door (32) is detachably connected to the box body (31).

14. The long-lasting fresh-keeping refrigerator according to claim 11, characterized in that: The upper end of the box body (31) is provided with a hook.

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