Box body sealing structure and refrigerator

Abstract

The invention relates to and provides a box body sealing structure, namely a refrigerator, which comprises a box body and a door body rotationally connected with the box body, and is characterized in that a sinking table and a door sealing strip are arranged on one surface, opposite to the box body, of the door body, and the outer edges of the sinking table and the door sealing strip are close to the outer edge of the door body; the door sealing strip is arranged on the periphery of the sinking table in a surrounding mode. A box face frame is arranged on the face, opposite to the door body, of the box body, a step matched with the sinking table and a clamping groove matched with the door seal strip are arranged on the box face frame, the sinking table is in clearance fit with the step, and the door seal is in interference fit with the clamping groove. The sinking table is additionally arranged on the door body and matched with the step additionally arranged on the refrigerator body, so that the thickness of the connecting position of the door body and the refrigerator body is increased, heat insulation can be conducted on the connecting position through the door body and the refrigerator body, the cold leakage effect of the door sealing strip can be effectively reduced, and the heat insulation effect and performance of the refrigerator are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a box sealing structure and a refrigerator. Background Art

[0002] A freezer, also known as a freezer, is a refrigeration device used to preserve food and other items at low temperatures. The emergence of freezers has greatly facilitated the storage of food, among which horizontal freezers are a more common type of freezer, which are popular among people because of their large storage capacity and ease of use. A freezer usually includes a box body and a door body, and since there is a gap between the box body and the door body when they are closed, in order to prevent a large amount of cold air from leaking out, a door seal is usually installed on the door body to improve the sealing effect. However, in the prior art, the door seal is usually directly installed on the door body without further sealing the door seal, and the thermal insulation of the door seal is usually worse than that of the box body and the door body. Therefore, due to the poor thermal insulation of the door seal, the door seal has a poor anti-leakage effect and the freezer performance is poor. Summary of the invention

[0003] In view of this, in order to solve the above technical problems, the present invention provides a box sealing structure and a refrigerator with a door seal sealing structure, which can effectively reduce the cold leakage of the door seal.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] On the one hand, the present invention provides a box sealing structure, comprising a box body, and a door body rotatably connected to the box body, characterized in that a sinking platform and a door seal are provided on a side of the door body opposite to the box body, the outer edges of the sinking platform and the door seal are close to the outer edges of the door body, and the door seal is arranged around the outer periphery of the sinking platform; a box surface frame is provided on a side of the box body opposite to the door body, and the box surface frame is provided with a step matching the sinking platform and a groove matching the door seal, the fit between the sinking platform and the step is a clearance fit, and the fit between the door seal and the groove is an interference fit.

[0006] In the above technical scheme, compared with the traditional structure in which the door body is directly covered on the box body, the present invention fixes the door seal to the box surface frame on the box body, and through the design of the door seal structure, the door seal can not only seal the gap visible on the appearance surface when the door body and the box body are assembled, but also seal the gap between the door body sinker and the inclined surface of the box surface frame step, thereby extending the sealing distance, and then improving the thermal insulation effect of the box body, effectively reducing the cold leakage inside the box body, and improving the thermal insulation performance of the refrigerator.

[0007] In addition, the interference fit design between the door seal and the card slot ensures a good sealing effect between the door and the box when it is closed, effectively preventing the intrusion of external dust, water vapor, etc., protecting the items in the box from contamination, and also helps to maintain the specific environment in the box, such as temperature, humidity, etc. The clearance fit design between the sink and the step not only ensures the smoothness of the door during opening and closing, but also enhances the stability of the connection between the door and the box through the close fit between the door seal and the card slot, and improves the strength and durability of the overall structure.

[0008] Furthermore, the sink is an annular structure with a trapezoidal cross section, the longer bottom side of the trapezoid is close to the door body, and the side of the step is an inclined surface matching the side of the sink.

[0009] In the above technical solution, the sink is designed to have a trapezoidal cross-section structure, which matches the slope of the step, so that when the door is closed, the sink and the step can form a closer contact, thereby further enhancing the sealing effect. The design of the trapezoidal sink increases the contact area between the door and the box body, and the matching of the slope also provides a better guiding effect, so that the door can fit more smoothly on the box body when closed. The ring-shaped sink can also reduce the occupation of the internal space of the box as much as possible, ensuring that the refrigerator has sufficient storage space.

[0010] Furthermore, the sinking platform is an annular structure with a trapezoidal cross section, and the side surface of the step is an inclined surface matching the side surface of the sinking platform.

[0011] In the above technical scheme, the sinker with a trapezoidal cross-section and the sinker with a trapezoidal cross-section have the same function, that is, they can improve the sealing effect at the connection between the box body and the door body, increase the contact area between the door body and the box body, and achieve effective dispersion of stress, avoiding sealing failure or structural damage caused by local stress concentration, and extending the service life of the sealing structure.

[0012] Furthermore, the door seal is an annular structure and has a groove on its side, the groove extends along the circumference of the door seal, and a flange matching the groove is provided on the inner side of the slot, and the flange can be clamped in the groove.

[0013] In the above technical solution, the groove and the flange cooperate with each other, so that the door seal can form a tighter and more stable connection in the slot, and at the same time, when the door body is closed, the door seal can be accurately inserted into the slot, ensuring that the door seal can effectively exert its sealing effect. In addition, the design of the groove can also provide certain support and fixation for the door seal, preventing it from aging or deformation after long-term use. This helps to maintain the sealing performance and service life of the door seal.

[0014] Furthermore, the door seal is an elastic structure.

[0015] In the above technical solution, the door seal is an elastic structure, which enables it to better adapt to the small gap between the door body and the box body and the shape of the card slot, ensuring that a tight seal can be formed under any circumstances, effectively improving the reliability and stability of the seal. At the same time, it can resist wear and deformation in daily use, extending the service life of the sealing structure.

[0016] Furthermore, the door seal is a flexible structure with a hollow interior, and an airbag is provided inside the door seal.

[0017] In the above technical solution, the airbag inside the door seal can provide additional pressure when the door is closed, so that the door seal fits more closely on the card slot, thereby further enhancing the sealing effect. In addition, the airbag has a certain elasticity and compressibility, so that the door seal can be adaptively adjusted when facing different pressures or temperature changes, maintain stable sealing performance, and improve the adaptability and reliability of the sealing structure.

[0018] Furthermore, the door seal is provided with a plurality of air holes, which are spaced apart and distributed on the door seal, and are used to connect the outside with the inside of the box.

[0019] In the above technical solution, the multiple air holes arranged on the door seal can achieve pressure balance between the inside of the box and the external environment. Especially in an environment with large changes in temperature or humidity, the air holes can help regulate the pressure inside the box to prevent negative pressure from being generated inside the box after the refrigerator is refrigerated, making it impossible to open the door.

[0020] Furthermore, a plurality of first buckles and second buckles are provided on a side of the box surface frame away from the door body.

[0021] In the above technical solution, the provision of the first buckle and the second buckle can enable the box surface frame to better hook the foam material on the one hand, and can also facilitate the assembly between the box surface frame and the outer box on the other hand.

[0022] Furthermore, a plurality of ribs are provided on a side of the box surface frame away from the door body, and the plurality of ribs are distributed in a ring shape and close to the inner side of the box surface frame.

[0023] In the above technical solution, the provision of the ribs can effectively prevent the leakage of the foaming liquid caused by the foaming material during the curing process, and can also significantly enhance the structural strength of the box surface frame, making it more stable and less prone to deformation when facing external pressure or impact.

[0024] On the other hand, the present invention provides a refrigerator, comprising the above-mentioned cabinet sealing structure.

[0025] The refrigerator with the above-mentioned box sealing structure also has a door seal sealing structure, which can effectively reduce the cold leakage of the door seal, thereby effectively improving the heat insulation effect and performance of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0027] Figure 2 It is a schematic diagram of the overall structure of a door body according to an embodiment of the present invention.

[0028] Figure 3 The figure is a schematic diagram of the structure of a sink and a door seal according to an embodiment of the present invention.

[0029] Figure 4 The figure is a schematic diagram of the top structure of a box face frame according to an embodiment of the present invention.

[0030] Figure 5 The figure is a schematic diagram of the bottom structure of a box face frame according to an embodiment of the present invention.

[0031] Figure numerals: 1-box body; 2-door body; 3-sunk platform; 4-door seal; 41-groove; 42-air hole; 5-box surface frame; 51-step; 511-inclined surface; 52-slot; 53-first buckle; 54-second buckle; 55-rib; 56-rib position. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0033] Please refer to Figure 1-Figure 5 , a preferred embodiment of the present invention is as follows.

[0034] On the one hand, the present embodiment provides a sealing structure of a box body 1, comprising a box body 1 and a door body 2 rotatably connected to the box body 1, characterized in that a sinking platform 3 and a door seal 4 are provided on the side of the door body 2 opposite to the box body 1, the outer edges of the sinking platform 3 and the door seal 4 are close to the outer edges of the door body 2, and the door seal 4 is arranged around the outer periphery of the sinking platform 3; a box surface frame 5 is provided on the side of the box body 1 opposite to the door body 2, and a step 51 matching the sinking platform 3 and a groove 52 matching the door seal 4 are provided on the box surface frame 5, the fit between the sinking platform 3 and the step 51 is a clearance fit, and the fit between the door seal and the groove 52 is an interference fit. Among them, the box body 1 and the door body 2 of the present embodiment are both rectangular parallelepiped structures, that is, the door body 2 is a square structure, so the sinking platform 3 and the door seal 4 both have four sides, and the centers of the sinking platform 3, the door seal 4 and the door body 2 coincide with each other. The groove 52 is arranged on the end face of the box surface frame 5.

[0035] In this embodiment, by fixing the door seal 4 to the box surface frame 5 on the box body 1 and designing the structure of the door seal 4, the door seal 4 can not only seal the gap visible on the surface when the door body 2 and the box body 1 are assembled, but also seal the gap between the sink 3 and the step slope of the box surface frame 5, thereby extending the sealing distance, thereby improving the thermal insulation effect of the box body 1, effectively reducing the cold leakage inside the box body, and improving the thermal insulation performance of the refrigerator.

[0036] In addition, the interference fit design between the door seal 4 and the card slot 52 ensures a good sealing effect between the door body 2 and the box body 1 when it is closed, effectively preventing the intrusion of external dust, water vapor, etc., protecting the items in the box from contamination, and also helps to maintain the specific environment in the box body 1, such as temperature, humidity, etc. The clearance fit design between the sink 3 and the step 51 not only ensures the smoothness of the door body 2 during the opening and closing process, but also enhances the stability of the connection between the door body 2 and the box body 1 through the close fit between the door seal 4 and the card slot 52, and improves the strength and durability of the overall structure.

[0037] In this embodiment, the sink 3 is annular and has a trapezoidal cross section, the longer bottom side of the trapezoid is close to the door body 2, and the side of the step 51 is an inclined surface 511 that matches the side of the sink 3. The sink 3 has two surfaces that contact the step 51, and the sink 3 is annular, that is, the middle position of the sink 3 has a depression, which can reduce the use of materials and increase the internal space of the box body 1.

[0038] The sink 3 is designed to have a trapezoidal cross-section structure, which matches the inclined surface 511 of the step 51, so that when the door body 2 is closed, the sink 3 and the step 51 can form a closer contact, thereby further enhancing the sealing effect, and the design of the trapezoidal sink 3 increases the contact area between the door body 2 and the box body 1, and the matching of the inclined surface 511 also provides a better guiding effect, so that the door body 2 can be more stably attached to the box body 1 when closed. The ring-shaped sink 3 can also reduce the occupation of the internal space of the box body 1 as much as possible, ensuring that the refrigerator has sufficient storage space.

[0039] As another embodiment, the sink 3 is an annular structure with a trapezoidal cross section, and the side of the step 51 is an inclined surface 511 matching the side of the sink 3. The sink 3 with a trapezoidal cross section has the same function as the sink 3 with a trapezoidal cross section, that is, it can improve the sealing effect at the connection between the box body 1 and the door body 2, and can also increase the contact area between the door body 2 and the box body 1, and realize the effective dispersion of stress, avoid sealing failure or structural damage caused by local stress concentration, and extend the service life of the sealing structure.

[0040] In this embodiment, the door seal 4 is an annular structure and has a groove 41 on the side. The groove 41 extends along the circumference of the door seal 4. The inner side of the clamping groove 52 is provided with a flange that matches the groove 41. The flange can be clamped in the groove 41. There are two grooves 41, which are respectively located on the inner and outer sides of the door seal 4. Correspondingly, there are two flanges that match the two grooves 41 and are respectively located on the opposite sides of the clamping groove 52. In addition, one end of the door seal 4 inserted into the clamping groove 52 is a tapered structure, which has a certain guiding property and is more convenient to insert into the clamping groove 52.

[0041] The groove 41 and the flange cooperate with each other in this embodiment, so that the door seal 4 can form a tighter and more stable connection in the slot 52, and at the same time, when the door body 2 is closed, the door seal 4 can be accurately inserted into the slot 52, ensuring that the door seal 4 can effectively exert its sealing effect. In addition, the design of the groove 41 can also provide certain support and fixation for the door seal 4, preventing it from aging or deformation after long-term use. This helps to maintain the sealing performance and service life of the door seal 4.

[0042] In this embodiment, the door seal 4 is an elastic structure, which may be rubber, elastic plastic, or an elastic synthetic material.

[0043] The door seal 4 of this embodiment is an elastic structure, so that it can better adapt to the small gap between the door body 2 and the box body 1 and the shape of the card slot 52, ensuring that a tight seal can be formed under any circumstances, effectively improving the reliability and stability of the seal. At the same time, it can resist wear and deformation in daily use, extending the service life of the sealing structure.

[0044] As another embodiment, the door seal 4 is a flexible structure with a hollow interior, and an airbag is arranged inside the door seal 4. The airbag may be a continuous structure, which is an annular structure matching the door seal 4 and is buried inside the door seal 4. Of course, the airbag may also be a plurality of independent airbags, which are evenly spaced inside the door seal 4.

[0045] The airbag disposed inside the door seal 4 can provide additional pressure when the door body 2 is closed, so that the door seal 4 fits more closely on the card slot 52, thereby further enhancing the sealing effect. In addition, the airbag has a certain elasticity and compressibility, so that the door seal 4 can be adaptively adjusted when facing different pressures or temperature changes, maintain stable sealing performance, and improve the adaptability and reliability of the sealing structure.

[0046] In this embodiment, the door seal 4 is provided with a plurality of air holes 42, which are spaced apart on the door seal 4 and are used to connect the outside with the inside of the box 1. The air holes 42 penetrate the door seal 4, so that the inside of the box 1 can be connected with the outside. The plurality of air holes 42 are evenly spaced apart on each side of the door seal 4.

[0047] The multiple air holes 42 set on the seal can achieve pressure balance between the inside of the box 1 and the external environment. Especially in an environment with large temperature or humidity changes, the air holes 42 can help adjust the pressure inside the box 1 to prevent negative pressure from being generated in the box 1 after the refrigerator is refrigerated, making it impossible to open the door 2.

[0048] In this embodiment, a plurality of first buckles 53 and second buckles 54 are provided on one side of the box face frame 5 away from the door body 2. The provision of the first buckles 53 and the second buckles 54 can, on one hand, enable the box face frame 5 to better hook the foaming material, and on the other hand, facilitate the assembly between the box face frame 5 and the outer box. Among them, four first buckles 53 are provided, which are respectively located at the four corners of the box face frame 5, as a structure for hooking the foaming material. Four second buckles 54 are also provided, which are respectively located on the opposite sides of the inner side of the box face frame 5, and are used as a structure for connecting the outer box.

[0049] In this embodiment, a plurality of ribs 55 are further provided on a side of the box surface frame 5 away from the door body 2, and the plurality of ribs 55 are distributed in a ring shape and close to the inner side of the box surface frame 5. The provision of the ribs 55 can effectively prevent the foaming liquid from leaking out during the ripening process of the foaming material, and can also significantly enhance the structural strength of the box surface frame 5, making it more stable and less likely to deform when facing external pressure or impact. In addition, a plurality of rib positions 56 are further provided on the box surface frame 5 to facilitate the installation of the refrigerator liner.

[0050] On the other hand, this embodiment also provides a refrigerator, including the above-mentioned sealing structure of the box body 1. The refrigerator with the above-mentioned sealing structure of the box body 1 also has a door seal sealing structure, which can effectively reduce the cold leakage of the door seal, thereby effectively improving the heat insulation effect and performance of the refrigerator.

[0051] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] Although the present invention is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A box sealing structure, comprising a box and a door rotatably connected to the box, characterized in that: A sinker and a door seal are provided on the side of the door body opposite to the box body, the outer edges of the sinker and the door seal are close to the outer edge of the door body, and the door seal is arranged around the outer periphery of the sinker; a box surface frame is provided on the side of the box body opposite to the door body, and the box surface frame is provided with a step matching the sinker and a groove matching the door seal, the fit between the sinker and the step is a clearance fit, and the fit between the door seal and the groove is an interference fit.

2. A box sealing structure according to claim 1, characterized in that: The sinking platform is an annular structure with a trapezoidal cross section, the longer bottom side of the trapezoid is close to the door body, and the side surface of the step is an inclined surface matching the side surface of the sinking platform.

3. A box sealing structure according to claim 1, characterized in that: The sinking platform is an annular structure with a trapezoidal cross section, and the side surface of the step is an inclined surface matching the side surface of the sinking platform.

4. A box sealing structure according to claim 1, characterized in that: The door seal is an annular structure and has a groove on its side, the groove extends along the circumference of the door seal, and a flange matching the groove is provided on the inner side of the slot, and the flange can be clamped in the groove.

5. A box sealing structure according to claim 1, characterized in that: The door seal is an elastic structure.

6. A box sealing structure according to claim 1, characterized in that: The door seal is a flexible structure with a hollow interior, and an air bag is arranged inside the door seal.

7. A box sealing structure according to claim 1, characterized in that: The door seal is provided with a plurality of air holes, which are distributed on the door seal at intervals, and the air holes are used to connect the outside with the inside of the box.

8. The box sealing structure according to claim 1, characterized in that: A plurality of first buckles and second buckles are provided on a side of the box surface frame away from the door body.

9. A box sealing structure according to claim 8, characterized in that: A side of the box surface frame away from the door body is also provided with a plurality of ribs, and the plurality of ribs are distributed in a ring shape and close to the inner side of the box surface frame.

10. A refrigerator, characterized in that: It comprises a box sealing structure as described in any one of claims 1 to 9.

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