Refrigerator and freezer and drawer assembly thereof

Abstract

The present invention relates to a refrigeration and freezing device and a drawer assembly thereof. The drawer assembly comprises: a sealed barrel with a front opening, comprising a barrel body and a barrel cover; a tray, configured to be inserted into the bottom of the sealed barrel through the front opening in a push-pull manner; and a drawer, carried on the tray and configured to be inserted into the sealed barrel in a push-pull manner together with the tray, the drawer having a drawer body and a front end plate arranged at the front side of the drawer body. The tray has a head located outside the sealed barrel when the drawer is in a fully closed state, and an airtight seal is formed between the head of the tray and the drawer, between the head of the tray and the front end of the bottom plate of the sealed barrel, between the front end plate and the front end of the barrel cover of the sealed barrel, and between the barrel body and the barrel cover by a sealing member, so as to form a closed storage space inside the drawer when the drawer is in a fully closed state, which is not only convenient for the manufacture, maintenance or replacement of various components, but also can form a better effect and a higher level of sealing inside the drawer.

Description

Technical Field

[0001] The invention relates to refrigeration equipment, in particular to a refrigeration and freezing device and a drawer assembly thereof. Background Art

[0002] In order to meet the high quality requirements of users, existing refrigerators and other refrigeration and freezing devices are usually provided with a closed storage space to prevent the storage space from colluding with other compartments in the refrigeration and freezing device to produce odor. There are many ways to form the storage space. One is to set a partition inside the compartment to achieve sealing, but the sealing effect at the assembly of the partition is very poor. Another is to set a drawer assembly in the refrigeration and freezing device. The drawer assembly usually includes a sealed barrel and a drawer, and the drawer has a front end plate and a drawer body. In order to form a closed storage space inside the drawer, in the prior art, a single strip or ring-shaped seal (such a seal usually has an O-shaped or C-shaped cross-section) is usually designed at the interface between the front end plate and the sealed barrel, and the seal between the drawer and the sealed barrel needs to be achieved by the compression force between the front end plate and the sealed barrel after the drawer is pushed into the sealed barrel. However, the compression force between the two after the drawer is pushed into the sealed barrel is limited, which is not enough to deform the elastic seal, and the sealing effect is very poor. In other words, this sealing effect that depends on external forces is very unreliable and cannot meet the needs of storage devices with high requirements for sealing effects. Furthermore, the prior art does not consider sealing at other locations where gaps exist, resulting in a failure to form a truly enclosed space in the drawer. Summary of the invention

[0003] An object of the first aspect of the present invention is to overcome at least one defect in the prior art and to provide a drawer assembly for a refrigerator-freezer having a higher airtightness level and better sealing effect.

[0004] Another object of the first aspect of the present invention is to facilitate the preparation, repair or replacement of the drawer assembly.

[0005] A further object of the first aspect of the present invention is to enhance the sealing effect of the drawer assembly.

[0006] Another further object of the first aspect of the present invention is to prevent condensation from entering the housing space where the display and control component is located, thereby preventing the display and control component from failing.

[0007] A second aspect of the present invention is to provide a refrigerator-freezer.

[0008] According to a first aspect of the present invention, the present invention provides a drawer assembly for a refrigerator-freezer, comprising:

[0009] A sealed barrel with a front opening, comprising a barrel body with a top opening and a barrel cover for covering the top opening;

[0010] a tray configured to be push-pullably inserted into the bottom of the sealed barrel through the front opening; and

[0011] A drawer is carried on the tray and is configured to be inserted into the sealed barrel together with the tray in a push-pull manner, wherein the drawer has a drawer body and a front end plate arranged on the front side of the drawer body;

[0012] The tray has a head located outside the sealed barrel when the drawer is in a fully closed state, and an airtight seal is formed between the head of the tray and the drawer, between the head of the tray and the front end of the bottom plate of the sealed barrel, between the front end plate and the front end of the barrel cover of the sealed barrel, and between the barrel body and the barrel cover, so as to form an enclosed storage space inside the drawer when the drawer is in a fully closed state.

[0013] Optionally, the first seal arranged between the head of the tray and the drawer, the second seal arranged between the head of the tray and the front end of the bottom plate of the sealed barrel, and the third seal arranged between the front end plate and the front end of the barrel cover of the sealed barrel all include a main body and a deformation blocking piece that extends outwardly from the main body along an arc line or a fold line.

[0014] Optionally, the first seal is connected to the head of the tray; and

[0015] The deformation blocking piece of the first sealing member is suspended and extended downward from the front to the rear along an arc line from the body of the first sealing member, and is in elastic compression contact with the drawer.

[0016] Optionally, the tray further comprises a tray bottom plate connected to the rear side of the head; and

[0017] The extended end of the deformation blocking piece of the first sealing member abuts against the upper surface of the tray bottom plate.

[0018] Optionally, the drawer assembly further includes a display control assembly, the tray further includes a display cover arranged on the front side of the head, and the display control assembly is arranged in a containing space defined between the display cover and the head.

[0019] Optionally, the middle portion of the body of the first sealing member has a first slot with a notch facing downwards; and

[0020] The head of the tray has a first flange extending upward, and the first flange is inserted into the first slot to form a labyrinth-type airtight structure between the gap between the drawer and the tray bottom plate and the accommodating space.

[0021] Optionally, the second sealing member is connected to the bottom plate of the sealing barrel; and

[0022] The deformation blocking piece of the second sealing member extends obliquely downwardly forward from the body of the second sealing member and then extends obliquely upwardly forward so as to elastically press and contact with the head of the tray when the drawer is in a fully closed state.

[0023] Optionally, the third sealing member is connected to the barrel cover of the sealing barrel; and

[0024] The deformation blocking piece of the third sealing member extends forwardly in an inclined upward direction from the body of the third sealing member and then extends forwardly in an inclined downward direction so as to elastically press and contact with the front end plate when the drawer is in a fully closed state.

[0025] Optionally, a labyrinth-type airtight seal is formed between the barrel body and the barrel cover through an inserted fourth sealing member.

[0026] According to a second aspect of the present invention, the present invention further provides a refrigeration and freezing device, comprising:

[0027] a box body defining at least one storage compartment therein; and

[0028] Any of the above-mentioned drawer assemblies can be removably arranged in one of the storage compartments to provide a closed storage space for the refrigerator-freezer.

[0029] The designer of this application first breaks through the traditional design thinking and designs the sealed barrel of the drawer assembly into a split type with a barrel body and a barrel cover. On the basis of simplifying the mold, the barrel body and the barrel cover are prevented from being deformed when they are demolded, the structural stability of the sealed barrel is improved, and the usable space in the sealed barrel is increased. At the same time, the drawer assembly of this application also includes a tray, and a drawer with a front end plate and a drawer body, that is, this application splits the drawer assembly into multiple parts and sets seals between each part, which not only facilitates the manufacture, maintenance or replacement of each part, but also ensures that a good seal can be formed at the interface between each part, thereby forming a good effect and a high-level seal inside the drawer.

[0030] Furthermore, the designers of the present application have realized through in-depth analysis that different parts of the drawer assembly are different in position, structure and other structures matched therewith, so the structural type of the seals used between different parts will have a great influence on the sealing performance of the entire drawer assembly. To this end, the present application further designs the first seal between the tray head and the drawer, the second seal between the tray head and the sealing barrel, and the third seal between the front end plate and the sealing barrel to have a body and a deformation blocking piece extending outwardly from the body along an arc or a fold line. The purpose of causing the seal to produce elastic deformation from both material and shape aspects can be achieved by utilizing the special shape of the deformation blocking piece and the elastic deformation property of the deformation blocking piece itself. Therefore, a good sealing effect can be achieved at the interface when there are large manufacturing tolerances in the tray, the sealing barrel, the front end plate and the drawer.

[0031] Furthermore, the designers of the present application further specially designed an insertable fourth piece between the barrel body and the barrel cover to form a labyrinth-like airtight seal between the two. In this way, if external gas wants to enter the enclosed space in the drawer through the gap that may exist between the barrel body and the barrel cover, it must pass through the labyrinth-like path formed by the provision of the fourth sealing piece. The necessary path is greatly extended, and therefore, the sealing effect is better.

[0032] Furthermore, a display and control assembly is also provided in the containing space defined between the head of the tray and the display cover. If condensation enters the containing space, the display and control assembly will fail. The suspended deformation blocking sheet can block the moisture in the drawer outside the tray in advance, preventing moisture from entering the containing space through the assembly gap between the tray and the drawer. At the same time, the present application also forms a labyrinth-like airtight structure between the gap between the drawer and the tray bottom plate and the containing space by specially designing the structure of the first sealing member body, thereby effectively preventing the moisture inside the drawer from entering the containing space and causing the display and control assembly to fail.

[0033] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0035] Figure 1 is a schematic structural diagram of a drawer assembly according to an embodiment of the present invention;

[0036] Figure 2is a schematic structural exploded view of a drawer assembly according to one embodiment of the present invention;

[0037] Figure 3 is a schematic cross-sectional view of a drawer assembly according to one embodiment of the present invention;

[0038] Figure 4 yes Figure 3 A schematic enlarged view of the middle portion D;

[0039] Figure 5 yes Figure 3 A schematic enlarged view of the middle portion C;

[0040] Figure 6 yes Figure 3 A schematic enlarged view of the middle portion B;

[0041] Figure 7 yes Figure 3 A schematic enlarged view of the middle portion A;

[0042] Figure 8 is a schematic exploded cross-sectional view of a partial structure of a drawer assembly according to an embodiment of the present invention;

[0043] Fig. 9 It is a schematic structural diagram of a refrigeration and freezing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present invention first provides a drawer assembly for a refrigerator-freezer. Figure 1 is a schematic structural diagram of a drawer assembly according to an embodiment of the present invention, Figure 2 is a schematic structural exploded view of a drawer assembly according to one embodiment of the present invention, Figure 3 is a schematic cross-sectional view of a drawer assembly according to an embodiment of the present invention. Figures 1 to 3 The drawer assembly 1 of the embodiment of the present invention includes a sealed barrel 10, a drawer 20 and a tray 30.

[0045] The sealed barrel 10 is used to be placed in a refrigeration and freezing device, and may have a front opening so that the drawer 20 and the tray 30 can be pushed and pulled into the sealed barrel 10 through the front opening. The sealed barrel 10 may include a barrel body 110 with a top opening and a barrel cover 120 for covering the top opening of the barrel body 110. The designer of the present application breaks through the conventional design thinking and designs the sealed barrel 10 of the drawer assembly 1 into a split type having a barrel body 110 and a barrel cover 120. On the basis of simplifying the mold, the deformation of the barrel body 110 and the barrel cover 120 when they are ejected from the mold is avoided, the structural stability of the sealed barrel 10 is improved, and the usable space in the sealed barrel 10 is increased. The barrel cover 120 may have a horizontally extending plate portion 123 and a convex edge 124 extending downward from the two lateral side edges and the rear side edge of the plate portion 123.

[0046] The tray 30 is configured to be push-pullably inserted into the bottom of the sealed bucket 10 through the front opening. The tray 30 has a head 310 located outside the sealed bucket 10 when the drawer 20 is in a fully closed state.

[0047] The drawer 20 is carried on the tray 30 and is configured to be inserted into the sealed barrel 10 in a push-pull manner together with the tray 30. The drawer 20 has a drawer body 210 and a front end plate 220 disposed at the front side of the drawer body 210. A storage space for storing items is defined in the drawer body 210, and its upper end is open for users to take and put items. The front end plate 220 extends generally vertically to block the front end opening of the sealed barrel 10 when the drawer 20 is in a fully closed state. A handle portion 221 may be provided on the front end plate 220, so that the user can push and pull the drawer 20 through the handle portion 221.

[0048] The tray 30 may further include a tray bottom plate 320 extending backward from the head 310 and a tray rear plate 330 extending upwardly obliquely from the end of the tray bottom plate 320. The tray head 310 may be located below the front plate 220 and abut against the front side of the drawer body 210 to support the front plate 220 and allow the tray 30 to be pulled out together when the drawer 20 is pulled outward. The tray bottom plate 320 may be located below the drawer body 210 to support the drawer body 210. The tray rear plate 330 abuts against the rear side of the rear wall of the drawer body 210 to allow the tray 30 to be pushed into the sealed barrel 10 together when the drawer 20 is pushed into the sealed barrel 10.

[0049] The head 310 of the tray 30 and the drawer 20, the head 310 of the tray 30 and the front end of the bottom plate 113 of the sealed barrel 10, the front end plate 220 and the front end of the barrel cover 120 of the sealed barrel 10, and the barrel body 110 and the barrel cover 120 are all sealed by sealing members to form an airtight seal, so as to form an enclosed storage space inside the drawer 20 when the drawer 20 is in a fully closed state. The barrel cover 120 of the sealed barrel 10 is the plate portion 123 of the barrel cover 120, and the bottom plate 113 of the sealed barrel 10 is formed on the barrel body 110. It should be noted that the drawer 20 is in a fully closed state means that the drawer 20 has been pushed into the sealed barrel 10 to the maximum extent, and there is no room for further advancement.

[0050] The present application splits the drawer assembly 1 into multiple parts and sets seals between the parts, which not only facilitates the manufacture, maintenance or replacement of the parts, but also ensures that good seals can be formed at the interfaces between the parts, thereby forming a better and higher-level seal inside the drawer.

[0051] In some embodiments of the present invention, a first seal 40 disposed between the head 310 of the tray 30 and the drawer 20, a second seal 50 disposed between the head 310 of the tray 30 and the front end of the bottom plate 113 of the sealed barrel 10, and a third seal 60 disposed between the front end plate 220 and the front end of the barrel cover 120 of the sealed barrel 10 all include a main body and a deformation blocking piece that is bent outwardly and extends from the main body along an arc line or a fold line.

[0052] The designer of the present application has realized through in-depth analysis that different parts of the drawer assembly 1 are different in position, structure and other structures matched therewith, so the structural type of the seal used between different parts will have a great influence on the sealing performance of the entire drawer assembly. To this end, the present application further designs the first seal 40 between the head 310 of the tray 30 and the drawer 20, the second seal 50 arranged between the head 310 of the tray 30 and the front end of the bottom plate 113 of the sealed barrel 10, and the third seal 60 arranged between the front end plate 220 and the front end of the barrel cover 120 of the sealed barrel 10 to have a body and a deformation blocking piece extending outwardly from the body along an arc or a fold line. The deformation blocking piece of this special shape and the elastic deformation property of the deformation blocking piece itself can be used to achieve the purpose of causing the seal to produce elastic deformation from both material and shape aspects. Therefore, when there are large manufacturing tolerances in the tray, the sealed barrel, the front end plate and the drawer, it can ensure that a good sealing effect can still be achieved at the interface.

[0053] Figure 4 yes Figure 3Schematic enlarged view of the middle portion D. In some embodiments of the present invention, the first sealing member 40 includes a body 41 and a deformation blocking sheet 42 extending outwardly from the body 41 along an arc line to form an airtight seal between the head 310 of the tray 30 and the drawer 20 .

[0054] Further, the first seal 40 may be connected to the head 310 of the tray 30. The deformation blocking piece 42 of the first seal 40 is suspended and extended downward from the front to the rear along an arc line from the body 41 of the first seal 40, and is elastically pressed and contacted with the drawer 20. Specifically, the deformation blocking piece 42 may be elastically pressed and contacted with the front bottom corner of the drawer 20.

[0055] During the process of pushing and pulling the drawer 20, and no matter what state the drawer 20 is in, the tray 30 and the drawer 20 are relatively immobile, that is, the first seal 40 between the tray 30 and the drawer 20 will not frequently switch between elastic deformation and recovery deformation, so the elastic deformation performance of the first seal 40 is required to be higher than the recovery deformation performance. The deformation blocking sheet 42 of the first seal 40 is specially designed to extend downward from the main body along the arc from the front to the back, which can well meet the above requirements.

[0056] Furthermore, the thickness of the deformation blocking piece 42 gradually decreases from top to bottom, the thinner portion is conducive to elastic deformation, and the thicker portion can provide a certain degree of anti-deformation ability to increase the force between the deformation blocking piece 42 and the drawer 20, thereby improving the sealing effect between the two.

[0057] In some embodiments of the present invention, the extended end of the deformation blocking sheet 42 abuts against the upper surface of the tray bottom plate 320. Thus, the extended end of the deformation blocking sheet 42 can obtain a certain support effect, and the anti-deformation ability of the deformation blocking sheet 42 can be appropriately improved, so that the reaction required to produce the same deformation amount is increased, thereby enhancing the sealing performance between the tray 30 and the drawer 20.

[0058] In some alternative embodiments of the present invention, the deformation blocking piece 42 of the first sealing member 40 may also extend outward along other arc lines, for example, extend upward from front to back along an arc.

[0059] In some embodiments of the present invention, the drawer assembly 1 further includes a display control assembly 80, the tray 30 further includes a display cover 340 disposed on the front side of the head 310, and the display control assembly 80 is disposed in a housing space defined between the display cover 340 and the head 310. The suspended deformation blocking sheet 42 can block moisture in the drawer 20 outside the tray 30 in advance, preventing moisture from entering the housing space through the assembly gap between the tray 30 and the drawer 20 and causing the display control assembly 80 to fail.

[0060] Specifically, the display control component 80 is used to adjust the parameters in the display drawer 20, for example, it can be used to adjust the temperature, humidity or other environmental parameters in the display drawer 20, and can also be used to display the name, expiration date and other parameters of the stored food. The drawer component 1 can also include a wireless power generation module, a wireless power receiving module, and cables, etc., which are arranged in the sealed barrel 10.

[0061] Furthermore, the middle part of the body 41 of the first sealing member 40 has a first slot 411 with a notch facing downward. The head 310 of the tray 30 has a first flange 311 extending upward, and the first flange 311 is inserted into the first slot 411 to form a labyrinth-like airtight structure between the gap between the drawer 20 and the tray bottom plate 320 and the containing space. If condensation is generated in the containing space where the display and control component 80 is located, it will not only affect the display of information, but also the condensation is not easy to remove. For this reason, the present application further specially designs the structure of the first sealing member body 41, so that a labyrinth-like airtight structure can be formed between the gap between the drawer 20 and the tray bottom plate 320 and the above-mentioned containing space, thereby effectively preventing the humid air flow inside the drawer 20 from entering the containing space and causing the display and control component 80 to fail.

[0062] In some embodiments of the present invention, the deformation blocking piece 42 of the first sealing member 40 can be elastically pressed and contacted with the front end of the lower part of the drawer body 210. The display cover 340 has a display section 341 and an extension section 342. The display section 341 is arranged at the front side of the tray head 310 and is located below the front end plate 220. The extension section 342 extends backward from the upper end of the display section 341 and is inserted between the front end plate 220 and the tray head 310. The body 41 of the first sealing member 40 is sandwiched between the extension section 342 of the display cover 340 and the head 310 of the tray 30.

[0063] Figure 5 yes Figure 3 Schematic enlarged view of the middle part C. The second sealing member 50 may include a body 51 and a deformation blocking piece 52 that is bent outwardly along the fold line from the body 51 to form an airtight seal between the head of the tray 30 and the bottom plate 113 of the sealed barrel 10 when the drawer 20 is in a fully closed state. The deformation blocking piece 52 of the present application has a bent shape, thereby appropriately improving the deformation resistance of the deformation blocking piece 52, increasing the reaction required to produce the same deformation amount, thereby enhancing the sealing performance between the tray 30 and the front end of the bottom plate 113 of the sealed barrel 10.

[0064] In some embodiments of the present invention, the second sealing member 50 may be connected to the bottom plate 113 of the sealed barrel 10. The deformation blocking piece 52 of the second sealing member 50 extends obliquely downward and forward from the body 51 of the second sealing member 50 and then extends obliquely upward and forward, so as to elastically press and contact with the head 310 of the tray 30 when the drawer 20 is in a fully closed state. Thus, the section of the deformation blocking piece 52 extending obliquely upward and forward can have a sufficient length to generate sufficient elastic deformation.

[0065] Furthermore, the length of the first section 521 of the deformation blocking piece 52 extending obliquely downward is smaller than the length of the second section 522 of the deformation blocking piece 52 extending obliquely upward. On the one hand, the second section 522 extending upward with a longer length can ensure that the deformation blocking piece 52 produces sufficient elastic deformation when the drawer 20 is in a fully closed state. On the other hand, the first section 521 extending downward with a shorter length can provide a certain anti-deformation force to increase the interaction force between the deformation blocking piece 52 and the sealing barrel bottom plate 113, thereby further enhancing the sealing effect between the tray 30 and the sealing barrel 10.

[0066] In some alternative embodiments, the deformation blocking piece 52 of the second sealing member 50 may also extend outward along other fold lines, for example, first extend forwardly in an inclined upward direction and then extend forwardly in an inclined downward direction.

[0067] In some embodiments of the present invention, a second groove 114 is formed at the front end of the sealed barrel bottom plate 113, and the notch of the second groove 114 faces forward. The body 51 of the second sealing member 50 includes a limiting portion 511 connected to the rear side of the deformation blocking sheet 52 and a connecting portion 512 extending backward from the limiting portion 511. The connecting portion 512 is inserted into the second groove 114 of the bottom plate 113, so that the second sealing member 50 is installed. The limiting portion 511 abuts against the front end of the bottom plate 113, so that the airtight seal between the second sealing member 50 and the sealed barrel bottom plate 113 is achieved.

[0068] Furthermore, the connecting portion 512 extends backward from the middle of the limiting portion 511 so that the upper and lower portions of the limiting portion 511 are in contact with the front end of the bottom plate 113, thereby forming a labyrinth-type airtight seal between the second sealing member 50 and the sealing barrel bottom plate 113, thereby enhancing the sealing effect.

[0069] Furthermore, the thickness of the upper portion of the limiting portion 511 in the front-to-back direction is smaller than the thickness of the lower portion of the limiting portion 511 in the front-to-back direction. The extended end (i.e., the rear end) of the connecting portion 512 is provided with an anti-detachment barb to prevent the connecting portion 512 from detaching from the second groove 114 of the bottom plate 113, thereby improving the installation stability of the second sealing member 50.

[0070] Figure 6 yes Figure 3Schematic enlarged view of the middle part B. The third sealing member 60 may include a body 61 and a deformation blocking piece 62 that is bent outwardly along the fold line from the body 61 to form an airtight seal between the front end plate 220 and the barrel cover 120 of the sealed barrel 10 when the drawer 20 is in a fully closed state. The deformation blocking piece 62 of the present application has a bent shape, thereby appropriately improving the deformation resistance of the deformation blocking piece 62, increasing the reaction required to produce the same deformation amount, thereby enhancing the sealing performance between the front end plate 220 and the front end of the barrel cover 120 of the sealed barrel 10.

[0071] In some embodiments of the present invention, the third sealing member 60 may be connected to the barrel cover 120 of the sealed barrel 10. The deformation blocking piece 62 of the third sealing member 60 extends forwardly from the body 61 of the third sealing member 60 in an obliquely upward direction and then extends forwardly in an obliquely downward direction, so as to elastically press and contact with the front plate 220 when the drawer 20 is in a fully closed state. Thus, it is possible to avoid the formation of an upwardly opening groove on the third sealing member 60 to accumulate dirt, thereby ensuring that the position of the third sealing member 60 remains clean and tidy for a long time.

[0072] Furthermore, the length of the first section 621 of the deformation blocking piece 62 extending obliquely upward is smaller than the length of the second section 622 of the deformation blocking piece 62 extending obliquely downward. On the one hand, the second section 622 extending downward with a longer length can ensure that the deformation blocking piece 62 produces sufficient elastic deformation when the drawer 20 is in a fully closed state. On the other hand, the first section 621 extending upward with a shorter length can provide a certain anti-deformation force to increase the interaction force between the deformation blocking piece 62 and the front end plate 220, thereby further enhancing the sealing effect between the front end plate 220 and the sealing barrel 10.

[0073] In some alternative embodiments, the deformation blocking piece 62 of the third sealing member 60 may also extend outward along other fold lines, for example, first extend forwardly downwardly in an inclined manner and then extend forwardly upwardly in an inclined manner.

[0074] In some embodiments, a first groove 122 is formed at the front end of the barrel cover 120 of the sealed barrel 10, which is recessed backwards, and the notch of the first groove 122 faces forwards. The body 61 of the third sealing member 60 includes a limiting portion 611 connected to the rear side of the deformation blocking sheet 62 and a connecting portion 612 extending backwards from the limiting portion 611. The connecting portion 612 is inserted into the first groove 122 of the barrel cover 120, so that the third sealing member 60 is installed. The limiting portion 611 abuts against the front end of the barrel cover 120, so that the airtight seal between the third sealing member 60 and the barrel cover 120 is achieved.

[0075] Furthermore, the connecting portion 612 extends backward from the middle of the limiting portion 611 so that the upper and lower portions of the limiting portion 611 are in contact with the front end of the barrel cover 120, thereby forming a labyrinth-type airtight seal between the third sealing member 60 and the barrel cover 120, thereby enhancing the sealing effect.

[0076] Furthermore, the thickness of the upper portion of the limiting portion 611 in the front-to-back direction is greater than the thickness of the lower portion of the limiting portion 611 in the front-to-back direction. The extended end (i.e., the rear end) of the connecting portion 612 is provided with an anti-detachment barb to prevent the connecting portion 612 from detaching from the first groove 122 of the barrel cover 120, thereby improving the installation stability of the third sealing member 60.

[0077] Figure 7 yes Figure 3 Schematic enlarged view of the middle part A. A labyrinth-type airtight seal is formed between the barrel body 110 and the barrel cover 120 by an inserted fourth seal 70. The barrel body 110 and the barrel cover 120 can be fastened by screw connection, clamping or other suitable means. The present application specially designs an inserted fourth seal 70 between the barrel body 110 and the barrel cover 120 to form a labyrinth-type airtight seal between the two. In this way, not only can the fourth seal 70 be easily assembled, but also, if the outside gas wants to enter the enclosed space in the drawer 20 through the gap that may exist between the barrel body 110 and the barrel cover 120, it must pass through the labyrinth path formed by the fourth seal 70, and the necessary path is greatly extended, so the sealing effect is better.

[0078] The tub cover 120 may include a horizontally extending plate portion 123 and a flange 124 extending downward from two lateral side edges and a rear side edge of the plate portion 123 , and the fourth sealing member 70 may be disposed between the flange 124 and the tub body 110 .

[0079] Figure 8 1 is a schematic exploded cross-sectional view of a partial structure of a drawer assembly according to an embodiment of the present invention. In some embodiments of the present invention, a skirt 111 extending outward from the outer surface of the peripheral wall of the barrel body 110 and then bending upward is provided at the top of the barrel body 110. The length of the upward bending extension of the skirt 111 can make the end of the skirt 111 flush with the peripheral wall of the barrel body 110. A third groove 112 is defined between the skirt 111 and the peripheral wall of the barrel body 110, the notch of the third groove 112 faces upward, and the fourth sealing member 70 is disposed in the third groove 112.

[0080] Furthermore, the outer side of the skirt 111 may be provided with a plurality of claws, and the edge portion of the flange 124 may be provided with a plurality of buckles corresponding to the claws of the skirt one by one, so as to realize a fastening connection between the barrel cover 120 and the barrel body 110 through the clamping between the claws and the buckles.

[0081] In some embodiments of the present invention, a second slot 71 with an upward opening is formed in the middle of the fourth sealing member 70. The edge of the barrel cover 120 for cooperating with the barrel body 110 is provided with a second flange 121 extending downward, and the second flange 121 is inserted into the second slot 71 of the fourth sealing member 70 from top to bottom, so as to form a labyrinth-type airtight seal between the interface between the barrel cover 120 and the fourth sealing member 70, and between the interface between the fourth sealing member 70 and the barrel body 110, effectively preventing the internal gas of the sealed barrel 10 from communicating with the external gas through the interface between the barrel cover 120 and the fourth sealing member 70, and the interface between the fourth sealing member 70 and the barrel body 110.

[0082] Furthermore, the second flange 121 is a wedge-shaped body that is thick at the top and thin at the bottom, and the cross section of the second flange 121 tapers from top to bottom, that is, the cross section of the second flange 121 is approximately inverted trapezoidal. Specifically, the outer vertical peripheral surface 121a and the inner vertical peripheral surface 121b of the second flange 121 can both be inclined surfaces extending approximately vertically, and the inclination directions of the two are opposite and the inclination degrees are approximately the same.

[0083] On the basis of specifically defining the matching structure between the fourth seal 70, the barrel body 110 and the barrel cover 120, the present application further designs the flange on the barrel cover 120 for inserting into the slot of the fourth seal 70 to be a wedge-shaped body that is thick on the top and thin on the bottom, which not only improves the smoothness of the connection and matching between the barrel cover 120 and the barrel body 110, but also forms an extrusion contact between the second flange 121 and the fourth seal 70, and between the fourth seal 70 and the third groove 112 of the barrel body 110 through the thicker upper part of the second flange, thereby reducing or even avoiding the possibility of gap formation, and further improving the sealing effect between the barrel body 110 and the barrel cover 120.

[0084] In some embodiments of the present invention, the second insertion slot 71 is defined by an inner vertical inner circumferential surface 72 located on the inner side, an outer vertical inner circumferential surface 73 located on the outer side, and an inner bottom surface 74 of the fourth sealing member 70 .

[0085] Furthermore, the minimum vertical distance between the outer vertical peripheral surface 121a of the second flange 121 and the inner surface 111a of the skirt 111 is slightly smaller than the vertical distance between the outer vertical inner peripheral surface 73 defining the second slot 71 and the inner surface 111a of the skirt 111 when the fourth seal 70 is in a natural state. It can be understood that the fourth seal 70 in a natural state means that the fourth seal 70 is not subjected to external forces of compression or stretching, that is, a state without any deformation. Therefore, when the second flange 121 is inserted into the second slot 71 of the fourth seal 70, it will have a certain external support effect on the fourth seal 70, causing it to deform and closely contact with the peripheral wall of the barrel body 110 and the skirt 111, thereby improving the sealing effect between the barrel body 110 and the fourth seal 70, and between the barrel cover 120 and the fourth seal 70.

[0086] In some embodiments, the fourth sealing member 70 may be an elastic sealing strip having a U-shaped cross section.

[0087] Specifically, the elastic sealing strip may include three strip sealing sections respectively located on the lateral sides and rear side of the sealing barrel 10. The strip sealing section located on the rear side of the sealing barrel 10 and the two strip sealing sections located on the lateral sides of the sealing barrel 10 may be connected in a suitable manner, or the three strip sealing sections may be integrally formed, or the three strip sealing sections may be independent of each other.

[0088] The drawer assembly 1 of the present invention further includes a controlled atmosphere preservation module 90, which can be arranged on the inner side of the barrel cover 120. Due to the arrangement of the controlled atmosphere preservation module 90, the interior of the drawer assembly 1 requires a high-precision seal, and the controlled atmosphere preservation module 90 needs to be repaired or replaced. For this reason, the present application splits the drawer assembly 1 into multiple parts, and arranges seals between the various parts, which not only facilitates the manufacture, repair or replacement of the various parts, but also ensures that good seals can be formed at the interfaces between the various parts, thereby forming a good effect and a high-level seal inside the drawer.

[0089] The designer of the present application has realized through in-depth analysis that different parts of the drawer assembly 1 are different in position, structure and other structures matched therewith, so the structural type of the seal used between different parts will have a great influence on the sealing performance of the entire drawer assembly. To this end, the present application further designs the first seal 40 between the head 310 of the tray 30 and the drawer 20, the second seal 50 arranged between the head 310 of the tray 30 and the front end of the bottom plate 113 of the sealed barrel 10, and the third seal 60 arranged between the front end plate 220 and the front end of the barrel cover 120 of the sealed barrel 10 to have a body and a deformation blocking piece extending outwardly from the body along an arc or a fold line. The deformation blocking piece of this special shape and the elastic deformation property of the deformation blocking piece itself can be used to achieve the purpose of causing the seal to produce elastic deformation from both material and shape aspects. Therefore, when there are large manufacturing tolerances in the tray, the sealed barrel, the front end plate and the drawer, it can ensure that a good sealing effect can still be achieved at the interface.

[0090] The invention also provides a refrigerating and freezing device. Fig. 9 : is a schematic structural diagram of a refrigerator-freezer according to an embodiment of the present invention. The refrigerator-freezer 2 of the present invention comprises a box body 3 and a drawer assembly 1 described in any of the above embodiments. At least one storage compartment is defined in the box body 3, and the drawer assembly 1 can be removed and arranged in one of the storage compartments to provide a closed storage space for the refrigerator-freezer 2.

[0091] Those skilled in the art should understand that the terms "upper", "lower", "inner", "outer", "horizontal", "front", "rear", etc. used to indicate orientation or positional relationships in the embodiments of the present invention are based on the actual usage state of the drawer assembly 1 after being placed in the refrigerator-freezer 2. These terms are only used to facilitate the description and understanding of the technical solution of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0092] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A drawer assembly for a refrigerator-freezer, characterized in that: include: A sealed barrel with a front opening, comprising a barrel body with a top opening and a barrel cover for covering the top opening; A tray configured to be push-pullably inserted into the bottom of the sealed barrel through the front opening; as well as A drawer is carried on the tray and is configured to be inserted into the sealed barrel together with the tray in a push-pull manner, the drawer comprising a drawer body and a front end plate arranged at the front side of the drawer body; the front end plate is used to block the front end opening of the sealed barrel when the drawer is in a fully closed state; in The tray has a head portion located outside the sealed barrel when the drawer is in a fully closed state, and a seal is formed between the head portion of the tray and the drawer, between the head portion of the tray and the front end of the bottom plate of the sealed barrel, between the front end plate and the front end of the barrel cover of the sealed barrel, and between the barrel body and the barrel cover to form an airtight seal, so as to form an enclosed storage space inside the drawer when the drawer is in a fully closed state; A first sealing member disposed between the head of the tray and the drawer comprises a body and a deformation blocking sheet extending outwardly from the body along an arc or a fold line; The first seal is connected to the head of the tray; the deformation blocking piece of the first seal extends downwardly from the body of the first seal along an arc line from front to back, and is elastically pressed and contacted with the front end of the lower part of the drawer body; The tray also has a tray bottom plate connected to the rear side of the head; The extended end of the deformation blocking piece of the first sealing member abuts against the upper surface of the tray bottom plate.

2. The drawer assembly according to claim 1, characterized in that: The second seal arranged between the head of the tray and the front end of the bottom plate of the sealed barrel, and the third seal arranged between the front end plate and the front end of the barrel cover of the sealed barrel both include a body and a deformation blocking piece extending outwardly from the body along an arc or a fold line.

3. The drawer assembly according to claim 2, characterized in that: It also includes a display control component, and the tray also includes a display cover arranged on the front side of the head, and the display control component is arranged in a containing space defined between the display cover and the head.

4. The drawer assembly according to claim 3, characterized in that: The middle part of the body of the first sealing member has a first slot with a notch downward; and The head of the tray has a first flange extending upward, and the first flange is inserted into the first slot to form a labyrinth-type airtight structure between the gap between the drawer and the tray bottom plate and the accommodating space.

5. The drawer assembly according to claim 2, characterized in that: The second sealing member is connected to the bottom plate of the sealing barrel; and The deformation blocking piece of the second sealing member extends obliquely downwardly forward from the body of the second sealing member and then extends obliquely upwardly forward so as to elastically press and contact with the head of the tray when the drawer is in a fully closed state.

6. The drawer assembly according to claim 2, characterized in that: The third sealing member is connected to the barrel cover of the sealing barrel; and The deformation blocking piece of the third sealing member extends forwardly in an inclined upward direction from the body of the third sealing member and then extends forwardly in an inclined downward direction so as to elastically press and contact with the front end plate when the drawer is in a fully closed state.

7. The drawer assembly according to claim 1, characterized in that: A labyrinth-type airtight seal is formed between the barrel body and the barrel cover through an inserted fourth sealing member.

8. A refrigeration and freezing device, characterized in that: include: A box body, defining at least one storage compartment therein; as well as The drawer assembly described in any one of claims 1 to 7 is removably arranged in one of the storage compartments to provide a closed storage space for the refrigerator-freezer.

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