Door seal structure and refrigeration equipment

Abstract

The utility model discloses a door seal structure and refrigeration equipment, and the door seal structure comprises a plurality of air bags, the air bags can be elastically deformed, and the plurality of air bags are arranged at intervals. According to the door seal structure and the refrigeration equipment provided by the utility model, the problem of cold leakage of the refrigeration equipment caused by insufficient sealing of a door seal structure of the refrigeration equipment in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, and in particular to a door sealing structure and refrigeration equipment. Background Art

[0002] According to the survey, there are more and more types of door seal structures used in refrigeration equipment such as refrigerators and freezers, and the materials and shapes of the door seal structures have become increasingly mature. However, the door seal structures used in refrigeration equipment such as ultra-low temperature freezers still cannot meet the needs of refrigeration equipment such as ultra-low temperature freezers, and more cold leakage will occur. It can be seen that there is still room for improvement in the door seal structure.

[0003] In summary, the door sealing structure of the refrigeration equipment in the prior art is not sufficiently sealed, resulting in the problem of cold leakage in the refrigeration equipment. Utility Model Content

[0004] The embodiments of the utility model provide a door sealing structure and a refrigeration device to solve the problem that the door sealing structure of the refrigeration device in the prior art is insufficiently sealed, resulting in cold leakage in the refrigeration device.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a door sealing structure, comprising: a plurality of air bags, the air bags are elastically deformable, and the plurality of air bags are arranged at intervals.

[0006] Furthermore, after the door sealing structure is squeezed, the airbag is deformed and is in a squeezed state; when the airbag is in the squeezed state, a cavity is formed between two adjacent airbags.

[0007] Furthermore, the number of airbags is 4 and the number of cavities is 3.

[0008] Furthermore, it also includes: a support portion, and the airbag is arranged on the support portion.

[0009] Furthermore, the support portion and the airbag are integrally formed.

[0010] Furthermore, there are multiple supporting parts, and each supporting part is provided with at least one airbag.

[0011] Furthermore, a connecting piece for fixing to a preset structure is provided on the supporting part.

[0012] According to another aspect of the utility model, a refrigeration device is provided, comprising the above-mentioned door sealing structure.

[0013] Furthermore, it comprises a box door and a box body, a door sealing structure is arranged between the box door and the box body; and the door sealing structure is installed on the box door.

[0014] Furthermore, all corners of the airbag wall are rounded.

[0015] During use, the door seal structure will be squeezed and contacted between the door and the box of the refrigeration equipment. The elastically deformable airbag will be squeezed to form a certain deformation. The deformed airbags will change the distance between each other, and the distance will form space areas of different shapes. The internal temperature conduction is conducted from the inside of the refrigeration equipment to the airbag, space area, airbag, and so on. After layers of heat conduction barriers, the internal and external temperature exchanges are reduced to a minimum, thereby forming a very good seal and minimizing the cold leakage of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the door sealing structure of the first embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the structural dimensions of the door sealing structure of the first embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the door sealing structure of the third embodiment of the present utility model;

[0019] Figure 4 It is a structural schematic diagram of a door sealing structure of a fourth embodiment of the present utility model;

[0020] Figure 5 It is a structural schematic diagram of a door sealing structure of a fifth embodiment of the present utility model;

[0021] Figure 6 It is a structural schematic diagram of the door sealing structure of the sixth embodiment of the present utility model. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0023] See also Figure 1 and Figure 2 According to the first embodiment of the present invention, a door seal structure is provided, which includes a plurality of air bags 10, which are elastically deformable and spaced apart. The door seal structure can be installed on the door body to isolate the temperature inside the refrigeration equipment box from the temperature outside the box. The door seal structure has a plurality of air bags, and the main material of the door seal structure is low-temperature resistant rubber.

[0024] During use, the door seal structure will be squeezed and contacted between the door and the cabinet of the refrigeration equipment. The elastically deformable airbag will be squeezed to form a certain deformation. The deformed airbags will change the intervals between each other, and the intervals will form spatial areas of different shapes. The internal temperature conduction is conducted from the inside of the refrigeration equipment to the airbag, the spatial area (sealed cavity or semi-enclosed cavity or material medium), the airbag, and so on. After layers of heat conduction barriers, the internal and external temperature exchanges are reduced to a minimum, thereby forming a very good seal and minimizing the cold leakage of the refrigeration equipment.

[0025] Combination Figure 1 As shown, after the door sealing structure is squeezed, the airbag 10 is deformed and is in a squeezed state; when the airbag 10 is in the squeezed state, a cavity 20 is formed between two adjacent airbags 10 .

[0026] After the door seal structure is squeezed, independent cavities are generated between the airbags. Both the airbags and the cavity are sealed spaces, and the internal temperature is conducted from the inside of the refrigeration equipment to the airbag, cavity, airbag, cavity, airbag, and so on. After layer by layer of heat conduction, due to the heat conduction barrier of multiple sealed spaces, the internal and external temperature exchanges are reduced to a minimum, thereby forming a very good seal, thereby minimizing the cold leakage of the refrigeration equipment.

[0027] In this embodiment, the number of airbags 10 is 4, and the number of cavities 20 is 3. The door seal structure has 4 airbags, i.e. 4 sealed spaces. It can form 3 cavities, i.e. 3 sealed spaces. In terms of structure and effect ratio, the door seal structure with 4 airbags has the best sealing effect and better cold leakage effect.

[0028] Preferably, the door seal structure further comprises a support portion 30, and the airbag 10 is disposed on the support portion 30. The structural material of the support portion 30 is the same as that of the airbag, which is a material such as silicone rubber that has poor thermal conductivity and can produce a certain elastic deformation.

[0029] In order to facilitate production and regular replacement, the support portion 30 is integrally formed with the airbag 10 .

[0030] Further preferably, there are multiple support parts 30, and each support part 30 is provided with at least one airbag 10. That is to say, there can be one or more airbags on the support part. In this embodiment, the door sealing structure has two support parts, which are arranged inside and outside on the refrigeration equipment respectively, and each support part has two airbags, which are also arranged inside and outside, thereby forming a plurality of groups of airbags.

[0031] See also Figure 1 The support portion 30 is provided with a connector 31 for fixing to a preset structure. The preset structure may be a box door or a box body. The connector 31 may be a buckle.

[0032] The present invention further provides a second embodiment, which discloses a refrigeration device, wherein the refrigeration device of the second embodiment includes the door sealing structure of the above embodiment. The refrigeration device may be a refrigerator, a freezer, or the like.

[0033] See also Figure 1 The refrigeration device includes a door 41 and a box body 42, and a door sealing structure is arranged between the door 41 and the box body 42; the door sealing structure is installed on the door 41. During use, the door sealing structure will be squeezed and contacted between the door and the box body of the refrigeration device, and the elastically deformable airbags will be squeezed to form a certain deformation. The deformed airbags will change the mutual intervals, and the intervals will form space areas of different shapes. The internal temperature conduction is conducted from the inside of the refrigeration device to the airbag, the space area (sealed cavity or semi-enclosed cavity or material medium), the airbag, and so on. After layers of heat conduction barriers, the internal and external temperature exchanges are reduced to a minimum, thereby forming a very good seal, which minimizes the cold leakage of the refrigeration equipment.

[0034] Preferably, all corners of the airbag wall are rounded. This structural design is to prevent the corners on the airbag wall from being directly torn when the door seal structure is squeezed and the airbag is in a squeezed state, thereby effectively extending the service life of the door seal structure and ensuring the sealing effect. Figure 2 It can be seen that the airbag wall facing the door has two corners, both of which are rounded, and the radius of the rounded corners is R1. The airbag wall facing the box body 42 has two corners, both of which are rounded, and the radius of the rounded corners is R2.

[0035] The refrigeration equipment of the second embodiment is mainly an ultra-low temperature freezer, and the door seal structure mainly depends on the sealing performance requirements of the sealed space. The so-called sealing performance is determined by the temperature difference between the inside and outside of the ultra-low temperature freezer, the size of the sealed space, etc. Figure 1 and 2 , L is the thickness of the door seal structure, L1 is the width of the airbag cavity, L2 is the length of the airbag cavity, L3 is the distance between the sealing contact surface of the box door and the box body, D1 is the thickness of the airbag wall, and μ is the inclination angle of the airbag setting; the value of L depends on the value of L4, generally L=L4+(1.5~3mm), and the value range of L4 is determined by the sealing performance requirements. L1 and L2 are generally determined by the thickness of the airbag material D1. Generally, L2=L-(2×D1), and D1=(1-2mm). L3 mainly depends on the distance between the door hinges. The hinges are usually selected based on factors such as their stress conditions and working environment, so the selection of hinges is the key to determining the size of L3. μ is generally taken as 86°~87°.

[0036] See also Figure 3According to the third embodiment of the present invention, a door seal structure is provided, which includes a plurality of air bags 10, which are elastically deformable and spaced apart. The door seal structure can be installed on the door body to isolate the temperature inside the refrigeration equipment box from the temperature outside the box. The door seal structure has a plurality of air bags, and the main material of the door seal structure is low-temperature resistant rubber.

[0037] The door seal structure also includes a support portion 30, and the airbag 10 is arranged on the support portion 30. A connector 31 for fixing to a preset structure is arranged on the support portion 30. The structural material of the support portion 30 is the same as that of the airbag, which is a material such as silicone rubber with poor thermal conductivity and can produce a certain elastic deformation. In order to facilitate production and regular replacement, the support portion 30 is integrally formed with the airbag 10.

[0038] In this embodiment, the number of the supporting portion 30 is one, and three airbags 10 are disposed on the supporting portion 30. The space area between two adjacent airbags 10 is the structure of the supporting portion 30.

[0039] See also Figure 4 According to the fourth embodiment of the present utility model, a door seal structure is provided, which includes a plurality of air bags 10, which are elastically deformable and arranged at intervals. The door seal structure can be installed on the door body to isolate the temperature inside the refrigeration equipment box from the temperature outside the box. The door seal structure has a plurality of air bags, and the main material of the door seal structure is low-temperature resistant rubber.

[0040] The door seal structure also includes a support portion 30, and the airbag 10 is arranged on the support portion 30. A connector 31 for fixing to a preset structure is arranged on the support portion 30. The structural material of the support portion 30 is the same as that of the airbag, which is a material such as silicone rubber with poor thermal conductivity and can produce a certain elastic deformation. In order to facilitate production and regular replacement, the support portion 30 is integrally formed with the airbag 10.

[0041] In this embodiment, the number of the supporting portion 30 is one, and four airbags 10 are arranged on the supporting portion 30. The space area between two adjacent airbags 10 is the structure of the supporting portion 30.

[0042] See also Figure 5 According to the fifth embodiment of the present invention, a door seal structure is provided, which includes a plurality of airbags 10, which are elastically deformable and spaced apart. The door seal structure can be installed on the door body to isolate the temperature inside the refrigeration equipment box from that outside the box. The door seal structure has a plurality of airbags, and the main material of the door seal structure is low-temperature resistant rubber.

[0043] After the door seal structure is squeezed, the airbag 10 is deformed and in an extruded state; when the airbag 10 is in an extruded state, a cavity is formed between two adjacent airbags 10. The door seal structure also includes a support portion 30, and the airbag 10 is arranged on the support portion 30. The support portion 30 is provided with a connector 31 for fixing to a preset structure. The structural material of the support portion 30 is the same as that of the airbag, both of which are silicone rubber, a material with poor thermal conductivity and capable of producing a certain elastic deformation. In order to facilitate production and regular replacement, the support portion 30 and the airbag 10 are integrally formed.

[0044] In this embodiment, the number of the supporting portion 30 is one, and three airbags 10 are arranged on the supporting portion 30. The space between two adjacent airbags 10 is an opening. The number of the airbags 10 is three, and the number of the cavities 20 is two.

[0045] See also Figure 6 According to the sixth embodiment of the present invention, a door seal structure is provided, which includes a plurality of airbags 10, which are elastically deformable and spaced apart. The door seal structure can be installed on the door body to isolate the temperature inside the refrigeration equipment box from the temperature outside the box. The door seal structure has a plurality of airbags, and the main material of the door seal structure is low-temperature resistant rubber.

[0046] After the door seal structure is squeezed, the airbag 10 is deformed and in an extruded state; when the airbag 10 is in an extruded state, a cavity is formed between two adjacent airbags 10. The door seal structure also includes a support portion 30, and the airbag 10 is arranged on the support portion 30. The support portion 30 is provided with a connector 31 for fixing to a preset structure. The structural material of the support portion 30 is the same as that of the airbag, both of which are silicone rubber, a material with poor thermal conductivity and capable of producing a certain elastic deformation. In order to facilitate production and regular replacement, the support portion 30 and the airbag 10 are integrally formed.

[0047] In this embodiment, the number of the supporting portion 30 is one, and four airbags 10 are arranged on the supporting portion 30. The space between two adjacent airbags 10 is an opening. The number of the airbags 10 is four, and the number of the cavities 20 is three.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0050] Of course, the above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A door sealing structure, characterized in that: include: A plurality of airbags (10), wherein the airbags (10) are elastically deformable and the plurality of airbags (10) are arranged at intervals; After the door sealing structure is squeezed, the airbag (10) is deformed and is in a squeezed state; When the airbags (10) are in a squeezed state, a cavity (20) is formed between two adjacent airbags (10).

2. The door sealing structure according to claim 1, characterized in that: The number of the airbags (10) is four, and the number of the cavities (20) is three.

3. The door sealing structure according to claim 1, characterized in that: Also includes: A support portion (30), the airbag (10) being arranged on the support portion (30).

4. The door sealing structure according to claim 3, characterized in that: The support portion (30) and the airbag (10) are integrally formed.

5. The door sealing structure according to claim 3, characterized in that: There are a plurality of the support parts (30), and each of the support parts (30) is provided with at least one airbag (10).

6. The door sealing structure according to claim 3, characterized in that: The support portion (30) is provided with a connecting piece (31) for fixing to a preset structure.

7. A refrigeration device, characterized in that: The invention comprises the door sealing structure according to any one of claims 1 to 6.

8. The refrigeration device according to claim 7, characterized in that: It comprises a box door (41) and a box body (42), wherein the door sealing structure is arranged between the box door (41) and the box body (42); The door sealing structure is installed on the box door (41).

9. The refrigeration device according to claim 8, characterized in that: All corners of the wall of the airbag (10) are rounded.

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