Drawer sealing device and refrigerator

Abstract

The embodiment of the application provides a drawer sealing device and a refrigerator, and relates to the technical field of refrigeration. The device comprises: an upper cover plate located in a refrigeration chamber and fixed with an inner liner of the refrigeration chamber; a first cavity is formed between the lower side of the upper cover plate and the inner liner of the refrigeration chamber; a drawer bin is slidably connected with the inner liner of the refrigeration chamber; the drawer bin slides in the direction of entering or moving away from the first cavity; a sealing cover plate is arranged on the side of the upper cover plate close to the drawer bin; the sealing cover plate is obliquely arranged, and the distance between the sealing cover plate and the upper cover plate gradually increases from the outside of the refrigerator to the inside of the refrigerator; the top surface of the drawer bin is a corresponding inclined surface of the sealing cover plate; when the drawer bin is completely located in the first cavity, the top surface of the drawer bin is connected with the sealing cover plate, so that the inside of the drawer bin is sealed. The drawer sealing device provided by the application can realize high sealing performance, and the structure is designed in a hidden form, so that the occupation of the storage space by the structural member is avoided, and the appearance and applicability of the refrigerator interior are improved.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and in particular to a drawer sealing device and a refrigerator. Background Technology

[0002] Currently, refrigerators are a common household appliance, serving as essential tools for freezing and preserving food. As living standards continue to improve, consumers are increasingly demanding better preservation and categorized storage solutions. Dedicated food preservation zones offer less temperature and humidity fluctuation, maximizing the preservation of food's taste and flavor, and are gradually becoming a standard feature in refrigerators.

[0003] Considering the main function of the refrigerator's fresh food compartment, and taking into account the impact of temperature, humidity, and sealing on the cooling rate, some technologies employ a drawer-type structure design for the fresh food compartment. The sealing cover is fixed to the drawer opening to achieve a seal, thereby keeping the temperature and humidity of the fresh food compartment within a relatively small fluctuation range.

[0004] However, with the existing fresh food storage area, users need to pull the drawer out of the refrigerator and then open the sealed cover to access the fruits, vegetables, and other food items inside, resulting in a poor user experience. Summary of the Invention

[0005] This application provides a drawer sealing device and a refrigerator to solve the problems of instability and poor convenience in the unlocking process of existing unlocking devices.

[0006] In a first aspect, this application provides a drawer sealing device, comprising:

[0007] An upper cover plate located inside the refrigerator compartment and fixed to the inner liner of the refrigerator compartment; the lower part of the upper cover plate and the inner liner of the refrigerator compartment form a first chamber;

[0008] A drawer slidably connected to the inner liner of the refrigerator compartment; the drawer slides in a direction that enters the first chamber or moves away from the first chamber.

[0009] A sealing cover is provided on the side of the upper cover plate near the drawer; the sealing cover is inclined, and the distance between the sealing cover and the upper cover plate increases sequentially from the outside of the refrigerator to the inside of the refrigerator;

[0010] The top surface of the drawer is an inclined surface corresponding to the sealing cover; when the drawer is completely located inside the first cavity, the top surface of the drawer is in contact with the sealing cover to achieve a seal inside the drawer.

[0011] In some feasible embodiments, an air duct assembly is provided between the upper cover plate and the sealing cover plate, the air duct assembly comprising:

[0012] Air duct cover; the air duct cover is fixed to the inner liner of the refrigerator; the air duct cover is provided with air nozzles;

[0013] An air inlet cavity is formed between the upper cover plate and the sealing cover plate; the air nozzle is connected to the air inlet cavity;

[0014] The sealing cover plate is provided with an air inlet and an air outlet; the air inlet is located on the side of the sealing cover plate close to the air duct cover plate; the air outlet is located on the side of the sealing cover plate away from the air duct cover plate.

[0015] In some feasible embodiments, the sealing cover is provided with a sensor groove on the side facing the air inlet cavity; a temperature and humidity sensor is fixed in the sensor groove.

[0016] In some feasible embodiments, the air inlet cavity is provided with a heat insulation layer; the heat insulation layer covers the outside of the sensor slot.

[0017] In some feasible embodiments, the insulation layer covers the inner wall of the air inlet cavity.

[0018] In some feasible embodiments, the upper cover and the sealing cover are detachably connected.

[0019] In some feasible embodiments, a sealing strip is provided on the top surface of the drawer and / or at the contact position between the drawer and the sealing cover.

[0020] In some feasible embodiments, the drawer is connected to the inner liner of the refrigerator by a slide rail, the slide rail being at an angle of 0° to 5° to the horizontal plane.

[0021] In some feasible embodiments, the drawer is provided with a handle on the side facing the outside of the refrigerator compartment; a first magnetic element is provided on the side of the drawer away from the handle; and a second magnetic element is provided on the air duct cover or the inner liner of the refrigerator compartment, which is magnetically connected to the first magnetic element.

[0022] Secondly, this application provides a refrigerator that includes the drawer sealing device described in the first aspect.

[0023] The device provided in this application has the following technical effects:

[0024] 1. This application has a simple structure and is easy to assemble, requiring no additional unsealing steps for the user;

[0025] 2. The sealing cover and sensor in this application are all hidden designs, which have a good appearance and do not affect the storage space occupied;

[0026] 3. This application has a separate cooling air path, which is designed for dedicated cooling areas and has high cooling precision;

[0027] 4. The drawer sealing device provided in this application can ensure that the special area has high preservation performance, effectively lock in the moisture of fruits and vegetables, prevent the flow of gas in the refrigerator from taking away the moisture of fruits and vegetables, and greatly improve the preservation effect and taste of fruits and vegetables.

[0028] 5. This application can prevent molecular movement and heat exchange between the special zone and other areas of the refrigerator compartment, thereby improving the performance of the special zone. Attached Figure Description

[0029] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A front view of a drawer sealing device provided in an embodiment of this application;

[0031] Figure 2 A perspective view of a drawer sealing device provided in an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of a sealing cover plate in a drawer sealing device provided in an embodiment of this application;

[0033] Figure 4 This is a cross-sectional view of a drawer sealing device provided in an embodiment of this application.

[0034] In the picture:

[0035] 10-Refrigerator inner liner; 1-Top cover; 2-Drawer drawer; 3-Sealing cover; 31-Sensor slot; 41-Air duct cover; 411-Air nozzle; 42-Air inlet cavity; 43-Air inlet; 44-Air outlet; 5-Insulation layer. Detailed Implementation

[0036] The embodiments will now be described in detail, examples of which are illustrated in 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. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples consistent with some aspects of this application as detailed in the claims.

[0037] To address the problem that existing refrigerators have poor sealing in the food preservation area, resulting in ineffective temperature and humidity control and reduced preservation effect, this application provides a drawer sealing device for the food preservation area to solve the above problems.

[0038] See Figures 1-4This application provides a drawer sealing device, comprising:

[0039] The upper cover 1 is located inside the refrigerator compartment and is fixed to the inner liner 10 of the refrigerator compartment. It is used to provide support for items above it. At the same time, the upper cover 1 serves as the top surface of the fresh-keeping area and also serves as a structure that divides the fresh-keeping area from other areas of the refrigerator compartment. As for the material of the upper cover 1, it should be assumed that existing materials in the prior art can be used, which have a certain structural strength. The upper cover 1 can be integrally formed with the inner liner 10 of the refrigerator compartment, or it can be detachably assembled into the inner liner 10 of the refrigerator compartment. The lower part of the upper cover 1 and the inner liner of the refrigerator compartment form a first chamber 20, which is used to accommodate the drawer 2 in the embodiment of this application.

[0040] It also includes a drawer 2 that is slidably connected to the inner liner 10 of the refrigerator compartment; the drawer 2 slides in the direction of entering the first chamber 20 or moving away from the first chamber 20; in this embodiment, the sliding between the drawer 2 and the first chamber 20 can be a conventional slide rail structure. When the drawer 2 is manually pulled out of the first chamber 20, fruits, vegetables and other foods can be placed or taken out of the drawer 2; when the drawer 2 is manually slid inward to fully enter the first chamber 20, the drawer 2 is in a sealed state.

[0041] It should be noted that in this embodiment, only a preservation area for storing fruits, vegetables and other foods is used as an example. In practical applications, the device of this application is also applicable to other scenarios, such as refrigeration areas, variable temperature areas, etc. The same sealing and refrigeration effects can be achieved by using the device proposed in this application.

[0042] Depend on Figures 2-4 It is understood that the device of this application also includes a sealing cover plate 3 disposed on the side of the upper cover plate 1 near the drawer 2; in this embodiment, the sealing cover plate 3 is used to cooperate with the drawer 2 to form a sealing structure, ensuring that the temperature and humidity inside the drawer 2 are uniform and stable. Considering that if the sealing cover plate 3 is set in the horizontal direction, it is difficult to achieve both smooth inward sliding of the drawer 2 and good sealing, in this embodiment, the sealing cover plate 3 is set at an angle, and the distance between the sealing cover plate 3 and the upper cover plate 1 increases sequentially from the outside of the refrigerator to the inside of the refrigerator.

[0043] Meanwhile, the top surface of the drawer 2 is set as an inclined surface corresponding to the sealing cover 3; when the drawer 2 is completely inside the first chamber 20, the top surface of the drawer 2 is in contact with the sealing cover 3 to achieve sealing inside the drawer 2.

[0044] As can be seen from the above technical solution, during the use of the drawer sealing device provided in this application, when the drawer 2 is in a sealed state (and completely inside the first chamber 20), the top surface of the drawer 2 is in contact with the sealing cover 3 to achieve the sealing of the drawer 2. If the user needs to take out or place food from the drawer 2, he / she can pull the drawer 2 outward by hand. At this time, the top surface of the drawer 2 separates from the sealing cover 3 to contact the sealed state. As the drawer 2 is pulled out to a greater extent, the distance between the drawer 2 and the sealing cover 3 is further, causing the opening of the drawer 2 to expand until food can be taken out or placed. Then the user can continue the corresponding operation. Conversely, when the user does not need to take out or place food, he / she can push the drawer 2 inward by hand. At this time, the opening of the drawer 2 continuously shrinks, and the top surface of the drawer 2 gradually approaches the sealing cover 3 until the top surface of the drawer 2 touches the sealing cover 3. Then the entire drawer 2 is completely inside the first chamber 20 to restore the sealed state.

[0045] As can be seen, the drawer sealing device provided in this application, through the inclined sealing cooperation structure of the sealing cover plate 3 and the drawer 2, allows the operator to complete the unsealing and sealing operations while pulling the drawer 2, improving the user's ease of operation; at the same time, since the sealing cover plate 3 is hidden at the bottom of the upper cover plate 1, the storage space will not be reduced due to the increase in structure, thus improving the applicability of the device.

[0046] Furthermore, in some feasible embodiments, such as Figures 3-4 The drawer sealing device of this application further includes: an air duct assembly disposed between the upper cover plate 1 and the sealing cover plate 3, the air duct assembly comprising:

[0047] Air duct cover 41; the air duct cover 41 is fixed to the inner liner of the refrigerator; the air duct cover 41 is provided with an air nozzle 411; in this embodiment, the air duct cover 41 is used to provide support and protection for the air duct, the air duct cover 41 is provided with an air duct, the air duct is connected to the refrigerator's refrigeration system, and the air nozzle 411 is used to discharge the refrigeration air output by the refrigerator's refrigeration system into the first chamber 20 for refrigerating the food in the drawer 2.

[0048] An air inlet cavity 42 is formed between the upper cover plate 1 and the sealing cover plate 3. Since the sealing cover plate 3 is inclined, an angle is formed between the upper cover plate 1 and the sealing cover plate 3. Therefore, the air inlet cavity 42 is also a structure that is open at one end and narrow at the other end, which can increase the air volume and improve the cooling effect to a certain extent. The air nozzle 411 is connected to the air inlet cavity 42, and the cooling air of the refrigerator cooling system enters the air inlet cavity 42 through the air nozzle 411.

[0049] The sealing cover 3 is provided with an air inlet 43 and an air outlet 44; the air inlet 43 is located on the side of the sealing cover 3 near the air duct cover 41; the air outlet 44 is located on the side of the sealing cover 3 away from the air duct cover 41. The cooling air in the air inlet cavity 42 can enter the drawer 2 through the air inlet 43 to cool the food inside, and then be discharged through the air outlet 44 on the other side.

[0050] It should be noted that in this embodiment, the destination of the refrigerant discharged from the air outlet 44 can be varied. For example, it can be directly connected to the gas return pipe of the refrigerator, or it can be directly discharged into the refrigerator compartment or other chambers. This application does not impose any restrictions.

[0051] Furthermore, by Figure 3 and Figure 4 As shown, in some feasible embodiments, the sealing cover 3 is provided with a sensor groove 31 on the side facing the air inlet cavity 42; a temperature and humidity sensor is fixed in the sensor groove 31. The temperature and humidity sensor can measure the temperature and humidity values ​​of the environment in the drawer 2 and connect to the refrigerator's control system, thereby providing real-time feedback of temperature and humidity values ​​for real-time adjustment; in this embodiment, since the temperature and humidity sensor is hidden in the groove recessed towards the air inlet cavity 42, it avoids occupying space inside the drawer 2, and also avoids damage to the temperature and humidity sensor when the user places food.

[0052] Furthermore, by Figure 4 As shown, in some feasible embodiments, the air inlet cavity 42 is provided with a heat insulation layer 5; the heat insulation layer 5 covers the outside of the sensor slot 31. The heat insulation layer 5 can isolate the other side of the temperature and humidity sensor, preventing the data detected by the temperature and humidity sensor in the other side of the refrigerator compartment from affecting the measurement data in the drawer 2, thereby improving the sensitivity of the temperature zone sensing.

[0053] Furthermore, in some feasible embodiments, the insulation layer 5 may also cover the inner wall of the air inlet cavity 42. In this way, the insulation layer 5 can ensure that the air inlet cavity 42 is only used for heat exchange with the drawer 2, reducing energy loss caused by heat exchange between the air inlet cavity 42 and the refrigerator compartment.

[0054] As can be seen from the above technical solutions, in several embodiments of this application, a specific air duct assembly is used to cool the drawer 2. The components of the air duct assembly are hidden in the space formed by the upper cover plate 1 and the sealing cover plate 3, which further reduces the space occupied by the air duct assembly. At the same time, the use of sensor slot 31 and insulation layer 5 improves the cooling efficiency of the air duct assembly.

[0055] In some feasible embodiments, the upper cover plate 1 and the sealing cover plate 3 are detachably connected. The connection method can be varied; for example, the upper cover plate 1 may have a locking claw, while the sealing cover plate 3 may have a locking groove that mates with the locking claw; or, screw and nut connection structures may be provided on the upper cover plate 1 and the sealing cover plate 3 respectively, etc., without limitation. By making the upper cover plate 1 and the sealing cover plate 3 detachable, it facilitates the assembly of parts and periodic cleaning. Furthermore, if the refrigeration compartment is not needed, the drawer 2 and the sealing cover plate 3 can be removed, turning the first chamber 20 into a conventional refrigerator storage space.

[0056] In some feasible embodiments, a sealing strip is provided on the top surface of the drawer 2 and / or on the sealing cover 3 at the contact position with the drawer 2. The sealing strip can be any conventional sealing material, such as rubber. The sealing strip can be provided on one of the sealing cover 3 and the drawer 2, or both can have mutually cooperating sealing strips to further improve the sealing effect.

[0057] In some feasible embodiments, the drawer 2 is connected to the inner liner of the refrigerator via a slide rail, the slide rail having an angle of 0° to 5° with the horizontal plane. In this embodiment, the slide rail can improve the smoothness of pulling the drawer 2. When the slide rail is set to have a certain angle with the horizontal plane, it should be noted that the tilt direction of the slide rail should be consistent with the tilt direction of the sealing cover 3, only slightly lower. Due to the tilt of the slide rail at a certain angle, when the user pushes the drawer 2 inward, the weight of the drawer 2 itself will help it move into the interior as quickly as possible. At the same time, when the drawer 2 is completely inside the first chamber 20, the effect of gravity will also exert a certain pressure on the sealing strip, improving the sealing effect.

[0058] In some feasible embodiments, the drawer 2 is provided with a handle on the side facing the outside of the refrigerator. The handle can be a concealed handle or other types of handles, which can make it convenient for the user to pull the drawer 2.

[0059] In some other embodiments, to improve the sealing performance of the drawer 2, in addition to the aforementioned slide rail with a certain angle of inclination, a first magnetic element can be provided on the side of the drawer 2 away from the handle; the air duct cover 41 or the inner liner of the refrigerator compartment 10 is provided with a second magnetic element that is magnetically connected to the first magnetic element. Thus, when the drawer 2 is completely inside the first chamber 20, the magnetic force between the first and second magnetic elements can be used to increase the sealing performance. It should be noted that the specific arrangement of the magnetic elements is not limited; for example, the first magnetic element can be a magnet, the second magnetic element can be an iron product, or the two can be interchanged.

[0060] It should be noted that the number of drawers 2 is not limited in this application, for example, Figure 1The illustration shows the case where there are two refrigeration zones, but there can also be multiple zones. If there are multiple refrigeration zones, the corresponding structures can be set up in multiple groups; or, multiple drawer 2s can be set up, and the rest of the structures can be set up as the same system, that is, the same set of air supply components can be used to carry out the refrigeration operation of multiple drawer 2s. This is not limited in this embodiment.

[0061] As can be seen from the above technical solution, the drawer sealing device provided in this application not only achieves high sealing performance, but also has a separate air supply system. Both the sealing component and the air supply component are designed in a hidden form, avoiding the occupation of storage space by structural components and improving the aesthetics and applicability of the refrigerator interior.

[0062] This application also provides a refrigerator, including the drawer sealing device described in any of the foregoing embodiments.

[0063] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A drawer sealing device, applied to a refrigerator, the refrigerator including a refrigerator compartment, characterized in that, include: An upper cover plate (1) is located inside the refrigerator compartment and is fixed to the inner liner of the refrigerator compartment; the lower part of the upper cover plate (1) forms a first chamber (20) with the inner liner of the refrigerator compartment; A drawer (2) is slidably connected to the inner liner of the refrigerator compartment; the drawer (2) slides in a direction that enters the first chamber (20) or moves away from the first chamber (20); A sealing cover (3) is provided on the side of the upper cover (1) near the drawer (2); the sealing cover (3) is inclined, and the distance between the sealing cover (3) and the upper cover (1) increases sequentially from the outside of the refrigerator to the inside of the refrigerator; The top surface of the drawer (2) is an inclined surface corresponding to the sealing cover (3); when the drawer (2) is completely inside the first chamber (20), the top surface of the drawer (2) is in contact with the sealing cover (3) to achieve sealing inside the drawer (2); An air duct assembly is provided between the upper cover plate (1) and the sealing cover plate (3), the air duct assembly comprising: Air duct cover (41); the air duct cover (41) is fixed to the inner liner of the refrigerator; the air duct cover (41) is provided with an air nozzle (411); An air inlet cavity (42) is formed between the upper cover plate (1) and the sealing cover plate (3); the air nozzle (411) is connected to the air inlet cavity (42); The sealing cover (3) is provided with an air inlet (43) and an air outlet (44); the air inlet (43) is located on the side of the sealing cover (3) close to the air duct cover (41); the air outlet (44) is located on the side of the sealing cover (3) away from the air duct cover (41); The sealing cover (3) is provided with a sensor groove (31) on the side facing the air inlet cavity (42); a temperature and humidity sensor is fixed in the sensor groove (31); The air inlet cavity (42) is provided with a heat insulation layer (5); the heat insulation layer (5) covers the outside of the sensor slot (31).

2. The drawer sealing device according to claim 1, characterized in that, The insulation layer (5) covers the inner wall of the air inlet cavity (42).

3. A drawer sealing device according to claim 1, characterized in that, The upper cover plate (1) and the sealing cover plate (3) are detachably connected.

4. A drawer sealing device according to claim 1, characterized in that, A sealing strip is provided on the top surface of the drawer (2) and / or on the sealing cover (3) at the contact position with the drawer (2).

5. A drawer sealing device according to claim 1, characterized in that, The drawer (2) is connected to the inner liner of the refrigerator via a slide rail, the slide rail having an angle of 0° to 5° with the horizontal plane.

6. A drawer sealing device according to claim 1, characterized in that, The drawer (2) has a handle on the side facing the outside of the refrigerator compartment; the drawer (2) has a first magnetic element on the side away from the handle; the air duct cover (41) or the inner liner of the refrigerator compartment has a second magnetic element that is magnetically connected to the first magnetic element.

7. A refrigerator, characterized in that, Includes the drawer sealing device according to any one of claims 1-6.

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