Drawer sealing device and refrigerator

Abstract

The embodiment of the invention provides a drawer sealing device and a refrigerator, and relates to the technical field of refrigeration, and the drawer sealing device comprises an upper cover plate located in a refrigerating chamber and fixed to an inner container of the refrigerating chamber; a first cavity is formed by the lower portion of the upper cover plate and the refrigerating chamber inner container. The drawer bucket is in sliding connection with the refrigerating chamber liner; the drawer bucket slides in the direction of entering the first cavity or moving away from the first cavity. The sealing cover plate is arranged on one side, close to the drawer bucket, of the upper cover plate; the sealing cover plate is obliquely arranged, and the distance between the sealing cover plate and the upper cover plate is sequentially increased from the outer side of the refrigerator to the interior of the refrigerator. The top surface of the drawer bucket is an inclined surface corresponding to the sealing cover plate; when the drawer bucket is completely located in the first cavity, the top face of the drawer bucket is connected with the sealing cover plate, so that sealing of the interior of the drawer bucket is achieved. According to the drawer sealing device, high sealing performance can be achieved, the structure is designed in a hidden mode, structural parts are prevented from occupying the storage space, and the attractiveness and applicability of the refrigerator interior trim are improved.

Description

Technical Field

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

[0002] At present, household refrigerators have entered thousands of households and are important tools for freezing, preserving and storing food. With the continuous improvement of the quality of life, consumers have an increasing demand for preservation effects and classified storage. The temperature and humidity fluctuations of food stored in the fresh-keeping area are smaller, which can maximize the taste and flavor of the food and gradually become a standard feature of refrigerators.

[0003] Taking into account the main function of the refrigerator's fresh-keeping zone, combined with issues such as the impact of the temperature, humidity and sealing of the fresh-keeping zone on the refrigeration rate, some technologies use a drawer-type structure to design the fresh-keeping zone, and use the relative fixation between the sealing cover and the drawer opening to achieve the sealing of the fresh-keeping zone, so as to achieve the effect of maintaining the temperature and humidity of the fresh-keeping zone within a smaller fluctuation range.

[0004] However, when using the existing fresh-keeping area, the user needs to first pull the drawer out of the refrigerator, and then further open the sealed cover to obtain fruits, vegetables and other foods inside the drawer, which results in a poor user experience. Summary of the invention

[0005] The embodiments of the present application provide a drawer sealing device and a refrigerator to solve the problems of instability and poor convenience during the unlocking process of the existing unlocking device.

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

[0007] An upper cover plate is located in the refrigerating chamber and fixed to the inner shell of the refrigerating chamber; the lower part of the upper cover plate and the inner shell of the refrigerating chamber form a first chamber;

[0008] A drawer bucket slidably connected to the inner liner of the refrigerating chamber; the drawer bucket slides in a direction of entering the first chamber or moving away from the first chamber;

[0009] A sealing cover plate is arranged on the side of the upper cover plate close to the drawer; the sealing cover plate is arranged obliquely, and the distance between the sealing cover plate and the upper cover plate increases 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 plate; when the drawer is completely located inside the first chamber, the top surface of the drawer is connected to the sealing cover plate to achieve sealing inside the drawer.

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

[0012] The air duct cover is fixed to the inner liner of the cold storage room; the air duct cover is provided with an air nozzle;

[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 arranged on a side of the sealing cover plate close to the air duct cover plate; the air outlet is arranged on a side of the sealing cover plate away from the air duct cover plate.

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

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

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

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

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

[0020] In some feasible embodiments, the drawer is connected to the refrigerator compartment inner liner via a slide, and the angle between the slide and the horizontal plane is 0° to 5°.

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

[0022] In a second aspect, the present application provides a refrigerator comprising the drawer sealing device described in the first aspect.

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

[0024] 1. The present invention has a simple structure and is easy to assemble, and the user does not need to take additional unsealing steps when using it;

[0025] 2. The sealing cover plate and sensor of the present application are both hidden designs, with good appearance and do not affect the occupancy of storage space;

[0026] 3. This application has a separate cooling air circuit, which is designed for special zone cooling and has high cooling accuracy;

[0027] 4. The drawer sealing device provided by the present application can ensure that the special area has a high fresh-keeping performance, can effectively lock the moisture of fruits and vegetables and other foods, prevent the gas flow in the refrigerator from taking away the moisture of fruits and vegetables, and greatly improve the fresh-keeping effect and taste of fruits and vegetables;

[0028] 5. This application can prevent the molecular motion exchange and heat exchange between the special area and other areas of the cold storage room, thereby improving the performance of the special area. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

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

[0031] Figure 2 A three-dimensional diagram of a drawer sealing device provided in an embodiment of the present application;

[0032] Figure 3 A schematic structural diagram of a sealing cover plate in a drawer sealing device provided in an embodiment of the present application;

[0033] Figure 4 A cross-sectional view of a drawer sealing device provided in an embodiment of the present application.

[0034] In the figure:

[0035] 10-refrigerator inner liner; 1-upper cover; 2-drawer bucket; 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 DESCRIPTION

[0036] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following embodiments do not represent all implementation methods consistent with the present application. They are only examples consistent with some aspects of the present application detailed in the claims.

[0037] In order to solve the problem that the fresh-keeping area of ​​the existing refrigerator has poor sealing, resulting in the inability to effectively control the temperature and humidity, and reducing the fresh-keeping effect of the fresh-keeping area, the present application provides a drawer sealing device for the fresh-keeping area to solve the above problem.

[0038] See also Figure 1-Figure 4, the present application provides a drawer sealing device, comprising:

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

[0040] It also includes a drawer 2 that is slidably connected to the refrigerator inner liner 10; the drawer 2 slides in a 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, and when the drawer 2 is manually operated to pull out of the first chamber 20, fruits, vegetables and other foods can be placed in or taken out of the drawer 2; when the drawer 2 is manually operated to slide inward to completely enter the first chamber 20, the drawer 2 is in a sealed state.

[0041] It should be noted that in this embodiment, only the fresh-keeping area for storing fruits, vegetables and other foods is taken as an example. In actual applications, the device of this application is also applicable to other scenarios, such as refrigeration areas, variable temperature areas, etc., and the device proposed in this application can be used to achieve the same sealing effect and refrigeration effect.

[0042] Depend on Figure 2-Figure 4 It can be seen that the device of the present application further includes a sealing cover plate 3 disposed on the side of the upper cover plate 1 close to the drawer 2; in this embodiment, the sealing cover plate 3 is used to cooperate with the drawer 2 to form a sealing structure to ensure that the temperature and humidity inside the drawer 2 are uniform and stable. Considering that if the sealing cover plate 3 is arranged 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 arranged obliquely, and the distance between the sealing cover plate 3 and the upper cover plate 1 increases from the outside of the refrigerator to the inside of the refrigerator.

[0043] At the same time, the top surface of the drawer 2 is set to a slope corresponding to the sealing cover plate 3; when the drawer 2 is completely located inside the first chamber 20, the top surface of the drawer 2 is connected to the sealing cover plate 3 to achieve sealing inside the drawer 2.

[0044] It can be known from the above technical scheme that during the use of the drawer sealing device provided in the present application, when the drawer 2 is in a sealed state (and is completely located inside the first chamber 20), the top surface of the drawer 2 is connected to the sealing cover plate 3 to achieve the sealing of the drawer 2; if the user needs to take or place food from the drawer 2, the drawer 2 can be pulled outward by hand, at this time, the top surface of the drawer 2 is separated from the sealing cover plate 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 plate 3 is farther, so that the opening of the drawer 2 is expanded until the food can be taken or placed, and the user can continue the corresponding operation; on the contrary, when the user does not need to continue to take or place food, the drawer 2 can be pushed inward by hand, at this time, the opening of the drawer 2 is continuously reduced, and the top surface of the drawer 2 gradually approaches the sealing cover plate 3, until the top surface of the drawer 2 reaches the sealing cover plate 3, and the entire drawer 2 is completely located in the first chamber 20 to restore the sealed state.

[0045] It can be seen that the drawer sealing device provided in the present application, through the inclined sealing matching structure of the sealing cover plate 3 and the drawer bucket 2, allows the operator to complete the unsealing and sealing operations in the process of pulling the drawer bucket 2, thereby improving the user's convenience in 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, thereby improving the applicability of the device.

[0046] Further, in some feasible embodiments, such as Figure 3-Figure 4 The drawer sealing device of the present application further comprises: an air duct assembly arranged between the upper cover plate 1 and the sealing cover plate 3, the air duct assembly comprising:

[0047] An air duct cover plate 41; the air duct cover plate 41 is fixed to the inner liner of the refrigerator compartment; an air nozzle 411 is provided on the air duct cover plate 41; in the present embodiment, the air duct cover plate 41 is used to provide support and protection for the air duct, an air duct is provided in the air duct cover plate 41, the air duct is connected to the refrigeration system of the refrigerator, and the air nozzle 411 is used to discharge the refrigeration air output by the refrigeration system of the refrigerator into the first chamber 20, so as to refrigerate 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, so the formed air inlet cavity 42 is also a structure with one end open and the other end narrow, which can increase the air volume to a certain extent and improve the refrigeration effect; the air nozzle 411 is connected to the air inlet cavity 42, and the refrigeration air of the refrigerator refrigeration system enters the air inlet cavity 42 through the air nozzle 411.

[0049] The sealing cover plate 3 is provided with an air inlet 43 and an air outlet 44; the air inlet 43 is arranged on a side of the sealing cover plate 3 close to the air duct cover plate 41; the air outlet 44 is arranged on a side of the sealing cover plate 3 away from the air duct cover plate 41. The refrigerated air in the air inlet cavity 42 can enter the drawer 2 through the air inlet 43 to refrigerate 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, there can be multiple destinations for the refrigerant gas discharged from the air outlet 44. For example, it can be directly connected to the gas return pipeline of the refrigerator, or it can be directly discharged into the cold storage room or other chambers, which is not limited in this application.

[0051] Further, by Figure 3 and Figure 4 As shown, in some feasible embodiments, the sealing cover plate 3 is provided with a sensor slot 31 on one side of the air inlet cavity 42; a temperature and humidity sensor is fixed in the sensor slot 31. The temperature and humidity sensor can measure the temperature and humidity values ​​of the environment in the drawer 2, and is connected to the control system of the refrigerator, and then the temperature and humidity values ​​are fed back at any time for real-time regulation; in this embodiment, since the temperature and humidity sensor is hidden in the slot body recessed toward the air inlet cavity 42, it can avoid occupying the space in the drawer 2, and also avoid the temperature and humidity sensor from being damaged when the user places food.

[0052] Further, by Figure 4 As shown, in some feasible embodiments, a heat preservation layer 5 is provided in the air inlet cavity 42; the heat preservation layer 5 covers the outside of the sensor slot 31. The heat preservation layer 5 can insulate the other side of the temperature and humidity sensor, thereby preventing the temperature and humidity sensor from detecting the data of the refrigeration room on the other side from affecting the measurement data in the drawer 2, thereby improving the sensitivity of 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, thereby reducing energy loss caused by heat exchange between the air inlet cavity 42 and the refrigerating chamber.

[0054] It can be seen from the above technical solution that in several embodiments of the present application, a specific air duct assembly is used to cool the drawer 2, and 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 storage space occupied by the air duct assembly. At the same time, the setting of the sensor slot 31 and the 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. There are many forms of connection, such as providing a claw on the upper cover plate 1 and providing a clamping groove that matches the claw on the sealing cover plate 3; or providing a screw and nut connection structure on the upper cover plate 1 and the sealing cover plate 3, etc., which are not limited here. By setting the upper cover plate 1 and the sealing cover plate 3 to be detachable, it is convenient to assemble parts and perform regular cleaning. At the same time, if the fresh-keeping area is not needed, the drawer 2 and the sealing cover plate 3 can be disassembled and taken out, so that the first chamber 20 becomes a regular refrigerator storage space.

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

[0057] In some feasible embodiments, the drawer 2 is connected to the inner liner of the refrigerator compartment through a slide, and the angle between the slide and the horizontal plane is 0° to 5°. In this embodiment, the slide can improve the stability of the drawer 2 when it is pulled. When the slide is set to have a certain angle with the horizontal plane, it should be noted that the inclination direction of the slide should be consistent with the inclination direction of the sealing cover plate 3, but the angle is slightly lower; because the slide is inclined at a certain angle, when the user pushes the drawer 2 inward, the gravity of the drawer 2 itself will help move it to the inside as soon as possible. At the same time, when the drawer 2 is completely located inside the first chamber 20, the effect of gravity will also produce a certain pressure on the sealing strip, thereby improving the sealing effect.

[0058] In some feasible embodiments, a handle is provided on the side of the drawer 2 facing the outside of the refrigerator compartment. The handle may be a hidden handle or a handle of other forms, which can facilitate the user to pull the drawer 2 .

[0059] In some other embodiments, in order to improve the sealing performance of the drawer 2, in addition to the slide with a certain inclination angle as described above, a first magnetic component may be provided on the side of the drawer 2 away from the handle; and the air duct cover 41 or the refrigerator inner liner 10 may be provided with a second magnetic component magnetically connected to the first magnetic component. In this way, when the drawer 2 is completely located inside the first chamber 20, the magnetic force between the first magnetic component and the second magnetic component may be used to increase the sealing performance. It should be noted that the specific distribution of the above-mentioned magnetic components is not limited. For example, the first magnetic component may be a magnet, the second magnetic component may be an iron product, or the two may be interchanged.

[0060] It should be noted that, in the present application, the number of drawers 2 is not limited. For example, Figure 1What is shown is the case where there are two fresh-keeping areas, but there can also be multiple fresh-keeping areas. For the case where there are multiple fresh-keeping areas, the corresponding structures can be set as multiple groups; or, the drawer buckets 2 can be set as multiple, and the remaining structures can be set as the same system, that is, the same set of air supply components can be used to implement refrigeration operations for multiple drawer buckets 2, which is not limited in this embodiment.

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

[0062] The present application also provides a refrigerator, comprising the drawer sealing device described in any of the aforementioned embodiments.

[0063] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above are only specific implementation methods of the present application and are not used to limit the protection scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the present application should be included in the protection scope of the present application.

Claims

1. A drawer sealing device, applied to a refrigerator, the refrigerator comprising a refrigerating chamber, characterized in that: include: An upper cover plate (1) located in the refrigerating chamber and fixed to the inner shell of the refrigerating chamber; the lower part of the upper cover plate (1) and the inner shell of the refrigerating chamber form a first chamber (20); A drawer (2) slidably connected to the inner liner of the refrigerating chamber; the drawer (2) slides in a direction of entering the first chamber (20) or moving away from the first chamber (20); A sealing cover plate (3) is arranged on a side of the upper cover plate (1) close to the drawer (2); the sealing cover plate (3) is arranged obliquely, and the distance between the sealing cover plate (3) and the upper cover plate (1) increases in sequence 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 plate (3); when the drawer (2) is completely located inside the first chamber (20), the top surface of the drawer (2) is connected to the sealing cover plate (3) to achieve sealing inside the drawer (2).

2. A drawer sealing device according to claim 1, characterized in that: An air duct assembly is provided between the upper cover plate (1) and the sealing cover plate (3), and the air duct assembly comprises: An air duct cover plate (41); the air duct cover plate (41) is fixed to the inner liner of the refrigerating chamber; an air nozzle (411) is provided on the air duct cover plate (41); 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 plate (3) is provided with an air inlet (43) and an air outlet (44); the air inlet (43) is arranged on a side of the sealing cover plate (3) close to the air duct cover plate (41); and the air outlet (44) is arranged on a side of the sealing cover plate (3) away from the air duct cover plate (41).

3. A drawer sealing device according to claim 2, characterized in that: The sealing cover plate (3) is provided with a sensor slot (31) on the side facing the air inlet cavity (42); a temperature and humidity sensor is fixed in the sensor slot (31).

4. A drawer sealing device according to claim 3, characterized in that: A heat-insulating layer (5) is provided in the air inlet cavity (42); the heat-insulating layer (5) covers the outside of the sensor slot (31).

5. A drawer sealing device according to claim 4, characterized in that: The thermal insulation layer (5) covers the inner wall of the air inlet cavity (42).

6. 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.

7. 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 plate (3) at a position in contact with the drawer (2).

8. A drawer sealing device according to claim 1, characterized in that: The drawer (2) is connected to the inner container of the refrigerating chamber via a slide, and the included angle between the slide and the horizontal plane is 0° to 5°.

9. A drawer sealing device according to claim 2, characterized in that: The drawer (2) is provided with a handle on the side facing the outside of the refrigerator compartment; the drawer (2) is provided with a first magnetic member on the side away from the handle; and the air duct cover (41) or the refrigerator compartment inner shell is provided with a second magnetic member magnetically connected to the first magnetic member.

10. A refrigerator, characterized in that: The invention comprises a drawer sealing device as described in any one of claims 1 to 9.

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