Refrigeration equipment door body and refrigeration equipment

Abstract

The refrigeration equipment door body comprises a door shell, a door lining, a foaming layer and an air pressure balancing device, the air pressure balancing device comprises an air channel component and a one-way valve, an air flow channel is formed in the air channel component, and the one-way valve is arranged at an air inlet and used for opening or closing the air inlet. The one-way valve is configured to only allow external atmosphere to flow towards the air outlet through the air inlet. According to the refrigeration equipment door body, the air pressure balancing device is an independent device and is convenient to set, process and assemble independently; the air passage component is convenient to independently process, a plurality of air flow passages inside the air passage component can be conveniently processed, and the plurality of air flow passages can shorten the time for the refrigeration equipment to achieve the air pressure balance inside and outside the box body, so that the door body is more convenient to open, the air pressure balance efficiency is improved, the cold leakage amount of the refrigeration equipment is favorably reduced, and the power consumption is reduced.

Description

Technical Field

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

[0002] When using refrigerators, freezers and other refrigeration equipment, it is usually difficult to open the door. The reason is that after closing the door, the temperature inside the box continues to drop until it reaches the set temperature value and the temperature inside the box reaches equilibrium. As the temperature inside the box continues to drop, the air pressure inside the box drops accordingly. When the external air pressure remains unchanged, the pressure difference between the inside and outside of the box increases, making it difficult to open the door.

[0003] In order to overcome the problem of difficulty in opening the door, an air pressure balancing device is usually provided on the door body of the existing refrigeration equipment, so as to introduce external gas into the refrigeration equipment when there is a pressure difference between the inside of the refrigeration equipment box and the outside, so as to make the pressure difference between the inside and outside of the refrigeration equipment box disappear and balance the air pressure inside and outside the box. The air pressure balancing device includes a balancing air duct and a one-way valve arranged in the balancing air duct. The balancing air duct includes an air inlet formed on the front panel or bottom plate of the door body, an air outlet formed on the door body lining, and an air flow channel connecting the air inlet and the air outlet. The one-way valve only allows the outside atmosphere to enter the refrigeration equipment box through the balancing air duct, and prohibits the refrigeration gas in the box from leaking to the outside. Specifically, the air flow channel is usually formed by providing an air pressure balancing tube in the foaming layer of the door body, one end of the air pressure balancing tube is connected to the outside through the air inlet, and the other end is connected to the inner cavity of the refrigeration equipment box through the air outlet.

[0004] Taking into account the need to minimize cold leakage when the one-way valve is opened and to simplify the door assembly structure, the diameter of the air pressure balance pipe should not be too large. In addition, since the air pressure balance pipe is arranged in the foam layer, the process is complicated and the structure is relatively cumbersome, usually only one air pressure balance pipe is arranged. This results in a long time required to achieve air pressure balance inside and outside the refrigeration equipment box. The one-way valve is opened for a long time, which will still cause increased cold leakage of the refrigeration equipment and increased power consumption.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In view of the problems pointed out in the background technology, the utility model proposes a refrigeration equipment door body and refrigeration equipment. The air pressure balancing device has a simple structure and is convenient for processing and assembly. It can improve the air pressure balancing efficiency and reduce the cold leakage of the refrigeration equipment.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0008] In some embodiments of the present application, a refrigeration equipment door is provided, comprising:

[0009] a door shell having an air inlet formed thereon;

[0010] a door lining having an air outlet formed thereon;

[0011] A foaming layer formed in a door body cavity surrounded by the door shell and the door lining;

[0012] An air pressure balancing device is arranged in the inner cavity of the door body, and includes an airway component and a one-way valve. An airflow channel is formed inside the airway component, and both ends of the airflow channel pass through the airway component to respectively connect the air inlet and the air outlet; the one-way valve is arranged at the air inlet, and is used to open or close the air inlet. The one-way valve is configured to only allow the outside atmosphere to flow through the air inlet toward the air outlet.

[0013] In some embodiments of the present application, the air duct component is a block-shaped foam plastic part, in which a plurality of airflow channels are formed, and the air inlet and the one-way valve are respectively arranged in one-to-one correspondence with the plurality of airflow channels, one end of the plurality of airflow channels is located on the same A side of the air duct component, and the other end of the plurality of airflow channels is located on the same B side of the air duct component.

[0014] In some embodiments of the present application, the air flow channel includes an air inlet section connected to the air inlet, an air outlet section connected to the air outlet, and a middle section connecting the air inlet section and the air outlet section; the opening of the air inlet section is flared, and its axis is perpendicular to the axis of the air outlet section, the middle section extends in an arc shape, and the portion of the air duct component corresponding to the middle section also extends along the arc.

[0015] In some embodiments of the present application, the airway component is formed by splicing a first part of the airway component and a second part of the airway component, and the airflow channel is correspondingly formed by splicing a first part of the airflow channel on the first part of the airway component and a second part of the airflow channel on the second part of the airway component.

[0016] In some embodiments of the present application, the first part of the airway component is L-shaped, the first part of the airway channel is formed on the inner side of the first part of the airway component, the outer side of the second part of the airway component is spliced ​​with the inner side of the first part of the airway component, and the second part of the airway channel is formed on the outer side of the second part of the airway component.

[0017] In some embodiments of the present application, mutually cooperating positioning structures are formed on the inner side surface of the first part of the airway component and the outer side surface of the second part of the airway component for positioning the first part of the airway component and the second part of the airway component when they are fitted and spliced.

[0018] In some embodiments of the present application, the air inlet is located on the bottom plate of the door shell, and the air outlet is located at the bottom of the door lining; the bottom of the foaming layer, the bottom plate of the door shell and the bottom of the door lining form an installation cavity adapted to the airway component, and the airway component is placed in the installation cavity; the first part of the airway component is located above the second part of the airway component, the outer side surface and both end surfaces of the airway component are wrapped by the foaming layer, the bottom surface of the airway component is in contact with the bottom plate of the door shell, and the inner side surface of the airway component is in contact with the bottom of the door lining.

[0019] In some embodiments of the present application, the bottom of the door lining has a protruding portion that is recessed toward the side where the front panel of the door shell is located, and a recessed portion is correspondingly formed on the inner side surface of the airway component.

[0020] In some embodiments of the present application, a refrigeration equipment door is provided, comprising:

[0021] a door shell having an air inlet formed thereon;

[0022] a door lining having an air outlet formed thereon;

[0023] A foaming layer formed in a door body cavity surrounded by the door shell and the door lining;

[0024] An air pressure balancing device is arranged in the inner cavity of the door body, and includes an air duct component and a one-way valve. An air flow channel is formed inside the air duct component, and both ends of the air flow channel pass through the air duct component to respectively connect the air inlet and the air outlet; the one-way valve is used to open and close the air flow channel to balance the air pressure inside and outside the refrigeration equipment box.

[0025] In some embodiments of the present application, a refrigeration device is provided, including a box body and a door body installed on the box body to open or close the box body, and the door body is the above-mentioned refrigeration device door body.

[0026] Compared with the prior art, the advantages and positive effects of the utility model are:

[0027] 1. The air pressure balancing device of the refrigeration equipment door of the utility model is an independent device arranged in the inner cavity of the door body, that is, it is not arranged in the foaming layer, so it is convenient to be arranged in the inner cavity of the door body, and it is convenient to be processed and assembled separately; the air pressure balancing device includes an airway component and a one-way valve, an air flow channel is formed inside the airway component, and both ends of the air flow channel pass through the airway component to respectively connect the air inlet and the air outlet; the one-way valve is arranged at the air inlet, which is used to open or close the air inlet, and the one-way valve is configured to only allow the outside atmosphere to flow in the direction of the air outlet through the air inlet, and prohibit the refrigerant gas from leaking to the outside through the air inlet; because the air pressure balancing device is an independent device, the airway component is convenient to be processed separately, and the internal air flow channel thereof can be conveniently processed into multiple ones, and the multiple air flow channels can shorten the time required for the refrigeration equipment to reach the air pressure balance inside and outside the box, making it more convenient to open the door body, and the air pressure balancing efficiency is improved, which is conducive to reducing the cold leakage of the refrigeration equipment and reducing the power consumption;

[0028] 2. The refrigeration equipment equipped with the refrigeration equipment door body of the utility model can achieve the time required for the air pressure inside and outside the box to balance, improve the air pressure balance efficiency, and help reduce the cold leakage of the refrigeration equipment and reduce power consumption.

[0029] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 exemplarily showing a perspective view of a refrigeration device according to some embodiments;

[0032] Figure 2 exemplarily showing a stereoscopic view of a refrigeration device according to some embodiments from another perspective;

[0033] Figure 3 for Figure 2 A magnified view of part A;

[0034] Figure 4 A perspective view of a refrigeration equipment door according to some embodiments is exemplarily shown;

[0035] Figure 5 A perspective view of a refrigeration equipment door from another perspective is exemplarily shown according to some embodiments;

[0036] Figure 6for Figure 4 Bottom view of

[0037] Figure 7 for Figure 6 BB cross-sectional view;

[0038] Figure 8 for Figure 7 Enlarged view of part C;

[0039] Fig. 9 The schematic diagram of the coordination structure between the air pressure balancing device and the door lining according to some embodiments is exemplarily shown;

[0040] Fig.10 for Fig. 9 A magnified view of the D portion;

[0041] Fig.11 illustratively showing a perspective view of an airway component according to some embodiments;

[0042] Fig.12 exemplarily showing a stereoscopic view of an airway component from another perspective according to some embodiments;

[0043] Fig.13 for Fig.11 A top view of

[0044] Fig.14 for Fig.13 EE cross-sectional view;

[0045] Fig.15 illustratively showing a perspective view of a first portion of an airway component according to some embodiments;

[0046] Fig.16 A perspective view of a second portion of an airway component according to some embodiments is illustratively shown.

[0047] Reference numerals:

[0048] 100, door body; 110, door shell; 111, top plate; 112, bottom plate; 113, front panel; 114, air inlet; 120, door lining; 121, air outlet; 122, protrusion; 130, door body inner cavity; 140, air pressure balance device; 141, airway component; 1411, first part of airway component; 1412, second part of airway component; 142, one-way valve; 143, air flow channel; 1431, first part of air flow channel; 1432, second part of air flow channel; 1433, positioning structure; 1434, recessed part; 144, air inlet end; 145, air outlet end; 146, air inlet section; 147, air outlet section; 148, middle section; 200, box body; 300, door seal. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In the description of the present application, it should be understood that the terms "center", "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 application and simplifying the description, and do not indicate or imply 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 a limitation on the present application.

[0051] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0055] Reference Figure 1 and Figure 2 In some embodiments of the present application, a refrigeration device is provided, including a door body 100 and a box body 200 , wherein the door body 100 is installed on the box body 200 to open or close the box body 200 .

[0056] like Figure 1 and Figure 2 As shown, in some embodiments of the present application, the refrigeration device is a vertical refrigeration device having an approximately rectangular parallelepiped shape. Its appearance is defined by a box body 200 defining a storage space and a door body 100 installed on the box body 200. The door body 100 is located at the front side of the box body 200. A door seal 300 is provided around the door body 100. When the door body 100 is in a state of closing the box body 200, the door seal 300 is interference-fitted with the side surface of the box opening around the box body 200 to seal the box body 200.

[0057] Reference Figures 3 to 16 , while combining Figure 1 and Figure 2 The refrigeration equipment door body 100 includes a door shell 110, a door lining 120 and a foam layer (not shown). The door shell 110 includes a top plate 111 (i.e., an upper end cover), a bottom plate 112 (i.e., a lower end cover), a front panel 113, and a left side panel and a right side panel. An air inlet 114 is formed on the door shell 110. The door lining 120 is arranged opposite to the front panel 113 of the door shell 110, and an air outlet 121 is formed on the door lining 120. The foam layer is formed in the door body inner cavity 130 surrounded by the door shell 110 and the door lining 120, and is an insulating layer of the door body 100; usually, the foam layer is filled with a foaming material.

[0058] The air inlet 114 can be located on the top plate 111, bottom plate 112 or front panel 113 of the door shell 110 to facilitate the entry of the outside air; the air outlet 121 can be located toward the side where the box body 200 is located, and the gas exhausted from the air outlet 121 can enter the storage space inside the box.

[0059] In some embodiments of the present application, the refrigeration equipment door body 100 further includes an air pressure balancing device 140, which is also disposed in the door body inner cavity 130, that is, the air pressure balancing device 140 is an independent device, located outside the foaming layer, and not disposed in the foaming layer. The air pressure balancing device 140 includes an air channel component 141 and a one-way valve 142.

[0060] In some embodiments of the present application, an airflow channel 143 is formed inside the airway component 141, and both ends of the airflow channel 143 pass through the airway component 141 to respectively connect the air inlet 114 and the air outlet 121, that is, one end of the airflow channel 143 is connected to the air inlet 114, and this end is called the air inlet end 144 of the airflow channel 143, and the other end of the airflow channel 143 is connected to the air outlet 121, and this end is called the air outlet end 145 of the airflow channel 143, so that the airflow channel 143 is connected to the outside through the air inlet end 144, and is connected to the inside of the box 200 through the air outlet end 145.

[0061] In some embodiments of the present application, a one-way valve 142 is provided at the air inlet 114 for opening or closing the air inlet 114. The one-way valve 142 is configured to only allow the outside atmosphere to flow through the air inlet 114 toward the air outlet 121, and then enter the cabinet 200 of the refrigeration equipment through the air outlet 121. When the refrigerant gas in the cabinet 200 enters the air flow channel 143 through the air outlet 121 and flows toward the air inlet 114 side, the one-way valve 142 closes the air inlet 114 to prevent the refrigerant gas from leaking to the outside as much as possible.

[0062] In some embodiments of the present application, the one-way valve 142 is inserted into the air inlet 114, and its valve seat can be fixed on the door shell entity around the air inlet 114. The valve core of the one-way valve 142 is in the air flow channel 143, and the valve core of the one-way valve 142 can move axially relative to the valve seat to open or close the air inlet 114.

[0063] The working principle of the air pressure balancing device 140 in the present application is: when the door 100 of the refrigeration equipment is closed, the temperature inside the box 200 will continue to decrease according to the temperature set by the system until the temperature inside the box reaches equilibrium. When the temperature inside the box is balanced, the low temperature environment inside the box makes the air pressure inside the box lower (forming negative pressure). When the air pressure outside the box (external environment) remains unchanged, the air pressure difference inside and outside the box 200 increases. Under the action of the external air pressure, the external gas will drive the valve core of the one-way valve 142 to open the air inlet 114, thereby entering the air flow channel 143, and then entering the interior of the box 200 through the air outlet 121, gradually balancing the air pressure inside and outside the box, making it easy for the user to open the door 100, and the air flow direction is as follows: Figure 8 As shown by the arrow in the middle air flow channel 143.

[0064] Since the air pressure balancing device 140 is an independent device, it is convenient to process and assemble. The airway component 141 thereof can be processed separately, so that the internal air flow channel 143 can be conveniently processed. Moreover, according to the actual size of the refrigeration equipment, one or more air flow channels 143 can be provided. The multiple air flow channels 143 can shorten the time required for the refrigeration equipment to achieve air pressure balance inside and outside the box body 200, make it more convenient to open the door body 100, and improve the air pressure balancing efficiency, which is beneficial to reduce the cold leakage of the refrigeration equipment and reduce power consumption.

[0065] In some embodiments of the present application, the air channel component 141 is a block foam plastic part, such as an EPS foam part, and a plurality of air flow channels 143 are formed therein, and the air inlets 114 and the one-way valves 142 are respectively arranged in one-to-one correspondence with the plurality of air flow channels 143, that is, each air flow channel 143 corresponds to an air inlet 114 and a one-way valve 142; one end of all the air flow channels 143, such as the air inlet end 144, is located on the same A side of the air channel component 141, and the other end of all the air flow channels 143, such as the air outlet end 145, is located on the same B side of the air channel component 141, and the A side and the B side are two different sides of the air channel component 141. Accordingly, the air inlets 114 on the door shell 110 that are in one-to-one correspondence with the air inlet ends 144 of the plurality of air flow channels 143 are located on the same A side of the air channel component 141, and the air outlets 121 on the door lining 120 that are in one-to-one correspondence with the air outlet ends 145 of the plurality of air flow channels 143 are located on the B side of the air channel component 141.

[0066] The air channel component 141 is made of foam plastic, which has certain thermal insulation performance and can minimize the adverse effects on the thermal insulation performance of the refrigeration equipment door body 100; at the same time, the foam plastic is easy to mold into various shapes, and its internal airflow channel 143 is also easy to be integrally molded with the foam plastic, and it is convenient to mold various special-shaped channels, so that the smoothness and flow speed of the airflow can be improved by reasonably designing the shape, size, and number of the airflow channel 143. By setting one end of all airflow channels 143, such as the air inlet end 144, on the same A side of the air channel component 141, and the other end, such as the air outlet end 145, on the same B side of the air channel component 141, it is convenient to unify the airflow direction of each airflow channel, improve the air pressure balance efficiency, and facilitate the processing of the airflow channel.

[0067] In some embodiments of the present application, Figure 3 , Figures 6 to 10As shown, the air inlet 114 is located on the bottom plate 112 of the door shell 110, and the one-way valve 142 is correspondingly located at the bottom of the door shell 110, so that the air inlet 114 and the one-way valve 142 can be hidden, reducing the adverse effect on the appearance of the refrigeration equipment door body 100. Correspondingly, the air inlet ends 144 of all air flow channels 143 face the bottom plate 112 of the door shell 110, that is, they are opened downward, the air channel component 141 is located at the bottom of the door body inner cavity 130, and the air outlet 121 is correspondingly located at the bottom of the door lining 120.

[0068] In some embodiments of the present application, Figure 8 and Fig.14 As shown, the air flow channel 143 includes an air intake section 146 connected to the air intake port 114, an air outlet section 147 connected to the air outlet port 121, and a middle section 148 connecting the air intake section 146 and the air outlet section 147; the opening of the air intake section 146 is in a flared shape, which can realize instantaneous air intake, improve the air intake efficiency, and thereby improve the air pressure balance efficiency inside and outside the box 200.

[0069] In some embodiments of the present application, the axis of the air inlet section 146 is perpendicular to the axis of the air outlet section 147, and the middle section 148 extends in an arc shape. The middle section 148 can smoothly connect the air inlet section 146 and the air outlet section 147, which is beneficial to improving the smoothness of the airflow in the airflow channel 143.

[0070] In some embodiments of the present application, the portion a of the airway component 141 corresponding to the middle section 148 also extends in an arc shape, such as Fig.10 , Fig.11 and Fig.14 As shown, and its arc extension trend is consistent with the arc extension trend of the middle section 148, so that the thickness of the part of the air duct component 141 corresponding to the middle section 148 can be made as thin as possible, thereby reducing the space occupied by the air duct component 141, and correspondingly increasing the space occupied and thickness of the foaming layer, and minimizing the space of the door body inner cavity 130 occupied by the separate air duct component 141, reducing the impact on the volume and thickness of the foaming layer, ensuring the thermal insulation effect of the refrigeration equipment door body 100, reducing the heat exchange between the airflow in the airflow channel 143 and the outside of the channel, and reducing the risk of condensation at the air duct component 141.

[0071] In order to further facilitate processing and reduce mold costs, in some embodiments of the present application, Fig.11 , Fig.12 , Fig.15 and Fig.16As shown, the airway component 141 is formed by splicing the first airway component part 1411 and the second airway component part 1412, and the airway channel 143 is correspondingly formed by splicing the first airway channel part 1431 on the first airway component part 1411 and the second airway channel part 1432 on the second airway component part 1412. That is, the airway component 141 is a split structure including two parts, and the structure of each part is relatively simple, so the corresponding molding mold structure is simple, the mold cost is low and it is easy to mold.

[0072] In some embodiments of the present application, the first part 1411 of the airway component is L-shaped, the first part 1431 of the airway channel is formed on the inner side of the first part 1411 of the airway component, the second part 1412 of the airway component is similar in structure to the first part 1411 of the airway component, the outer side of the second part 1412 of the airway component is fitted and spliced ​​with the inner side of the first part 1411 of the airway component, and the second part 1432 of the airway channel is formed on the outer side of the second part 1412 of the airway component. The volume of the airway component 141 of this structure is relatively small, so the space occupied is small, and the volume and thickness of the foaming layer are correspondingly large, thereby ensuring the thermal insulation effect of the refrigeration equipment door body 100.

[0073] In some embodiments of the present application, mutually cooperating positioning structures 1433 are formed on the inner side surface of the first part 1411 of the airway component and the outer side surface of the second part 1412 of the airway component, which are used to position the first part 1411 of the airway component and the second part 1412 of the airway component relative to each other when they are fitted and spliced, so as to improve the splicing accuracy and efficiency of the airway component 141 and facilitate assembly.

[0074] Specifically, in some embodiments of the present application, the positioning structure 1433 can be as follows: Fig.11 , Fig.12 , Fig.15 and Fig.16 The step structures that cooperate with each other as shown may also be other structures, such as protrusion and groove cooperation structures, etc., and no specific limitation is made here.

[0075] In some embodiments of the present application, the air inlet 114 is located on the bottom plate 112 of the door shell 110, and the air outlet 121 is located at the bottom of the door lining 120; the bottom of the foam layer, the bottom plate 112 of the door shell 110 and the bottom of the door lining 120 form an installation cavity adapted to the airway component 141, and the airway component 141 is placed in the installation cavity; the first part 1411 of the airway component is located above the second part 1412 of the airway component, the outer side surface and both end surfaces of the airway component 141 are wrapped by the foam layer, the bottom surface of the airway component 141 is in contact with the bottom plate 112 of the door shell 110, and the inner side surface of the airway component 141 is in contact with the bottom of the door lining 120.

[0076] like Figure 2 , Figure 3 , Figures 6 to 10 As shown, in some embodiments of the present application, the air inlet 114 is approximately located in the middle of the bottom plate 112 of the door shell 110. Taking the two air flow channels 143 arranged in parallel with each other inside the air channel component 141 as an example, the number of the air inlet 114 is two, which are arranged at intervals in the approximately middle area of ​​the bottom plate 112 of the door shell 110 along the length direction of the bottom plate 112 of the door shell 110, and two one-way valves 142 are arranged accordingly. At the same time, the air outlet 121 is approximately located in the middle of the bottom of the door lining 120, and the air channel component 141 is approximately located in the middle of the bottom of the door body inner cavity 130.

[0077] The air duct component 141 and the foam layer together fill the entire door body inner cavity 130, the mounting cavity is adapted to the shape of the air duct component 141, and the air duct component 141 is sandwiched in the mounting cavity by the foam layer, the bottom plate 112 of the door shell 110, and the door lining 120. With such a structure, only the bottom surface of the air duct component 141 is not wrapped by the foam layer, so that the one-way valve 142 can be set to maximize the thermal insulation effect of the foam layer.

[0078] In some embodiments of the present application, Figure 8 and Fig.10 As shown, the bottom of the door lining 120 has a protrusion 122 that is recessed toward the side where the front panel 113 of the door shell 110 is located, and a recess 1434 is correspondingly formed on the inner side surface of the airway component 141 (specifically, the second part 1412 of the airway component), and the recess 1434 is in contact with the protrusion 122.

[0079] On the one hand, the fit between the recessed portion 1434 and the protruding portion 122 can have an effect on the airway positioning of the airway component 141, so that the airway component 141 can be more firmly installed in the installation cavity; on the other hand, by recessing the bottom of the door lining 120 toward the side where the front panel 113 of the door shell 110 is located to form the protruding portion 122, compared with the prior art in which the door lining 120 fits the box opening plane of the box body 200, this part of the door lining 120 can form a larger gap with the box opening side of the box body 200, thereby facilitating the airflow to flow smoothly into the box body 200.

[0080] In some embodiments of the present application, a refrigeration equipment door body 100 is provided, comprising a door shell 110, a door lining 120 and a foaming layer. An air inlet 114 is formed on the door shell 110, the door lining 120 is arranged opposite to the front panel 113 of the door shell 110, and an air outlet 121 is formed on the door lining 120. The foaming layer is formed in the inner cavity 130 of the door body surrounded by the door shell 110 and the door lining 120, and is a heat insulating layer of the door body 100; generally, the foaming layer is filled with a foaming material.

[0081] In some embodiments of the present application, the refrigeration equipment door body 100 further includes an air pressure balancing device 140, which is also disposed in the door body inner cavity 130, that is, the air pressure balancing device 140 is an independent device, located outside the foaming layer, and not disposed in the foaming layer. The air pressure balancing device 140 includes an air channel component 141 and a one-way valve 142.

[0082] In some embodiments of the present application, an airflow channel 143 is formed inside the airway component 141, and both ends of the airflow channel 143 pass through the airway component 141 to respectively connect the air inlet 114 and the air outlet 121, that is, one end of the airflow channel 143 is connected to the air inlet 114, and this end is called the air inlet end of the airflow channel 143, and the other end of the airflow channel 143 is connected to the air outlet 121, and this end is called the air outlet end 145 of the airflow channel 143, so that the airflow channel 143 is connected to the outside through the air inlet end, and is connected to the inside of the box 200 through the air outlet end 145.

[0083] The one-way valve 142 is used to open and close the air flow channel 143 to balance the air pressure inside and outside the refrigeration equipment box 200.

[0084] The refrigeration equipment described in the embodiments of the present application may be a refrigerator, a freezer, a wine cabinet, a beverage cabinet, or other equipment with a foam door body for refrigerating or freezing items.

[0085] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0086] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A refrigeration equipment door, characterized in that: include: a door shell having an air inlet formed thereon; a door lining having an air outlet formed thereon; A foaming layer formed in a door body cavity surrounded by the door shell and the door lining; An air pressure balancing device is arranged in the inner cavity of the door body, and includes an airway component and a one-way valve. An airflow channel is formed inside the airway component, and both ends of the airflow channel pass through the airway component to respectively connect the air inlet and the air outlet; the one-way valve is arranged at the air inlet, and is used to open or close the air inlet. The one-way valve is configured to only allow the outside atmosphere to flow through the air inlet toward the air outlet.

2. The refrigeration equipment door according to claim 1, characterized in that: The airway component is a block-shaped foam plastic part, and a plurality of airflow channels are formed inside the airway component. The air inlet and the one-way valve are respectively arranged in one-to-one correspondence with the plurality of airflow channels. One end of the plurality of airflow channels is located on the same A side of the airway component, and the other end of the plurality of airflow channels is located on the same B side of the airway component.

3. The refrigeration equipment door according to claim 1, characterized in that: The airflow channel includes an air inlet section connected to the air inlet, an air outlet section connected to the air outlet, and a middle section connected to the air inlet section and the air outlet section; the opening of the air inlet section is flared, and its axis is perpendicular to the axis of the air outlet section, the middle section extends in an arc shape, and the part of the airway component corresponding to the middle section also extends along the arc.

4. The refrigeration equipment door according to claim 1, characterized in that: The airway component is formed by splicing the first airway component part and the second airway component part, and the airflow channel is correspondingly formed by splicing the first airflow channel part on the first airway component part and the second airflow channel part on the second airway component part.

5. The refrigeration equipment door according to claim 4, characterized in that: The first part of the airway component is L-shaped, the first part of the airway channel is formed on the inner side of the first part of the airway component, the outer side of the second part of the airway component is spliced ​​with the inner side of the first part of the airway component, and the second part of the airway channel is formed on the outer side of the second part of the airway component.

6. The refrigeration equipment door according to claim 5, characterized in that: The inner side surface of the first part of the airway component and the outer side surface of the second part of the airway component are formed with mutually matching positioning structures for positioning the first part of the airway component and the second part of the airway component when they are fitted and spliced.

7. The refrigeration equipment door according to claim 1, characterized in that: The air inlet is located on the bottom plate of the door shell, and the air outlet is located at the bottom of the door lining; the bottom of the foaming layer, the bottom plate of the door shell and the bottom of the door lining form an installation cavity adapted to the airway component, and the airway component is placed in the installation cavity; the first part of the airway component is located above the second part of the airway component, the outer side surface and both end surfaces of the airway component are wrapped by the foaming layer, the bottom surface of the airway component is in contact with the bottom plate of the door shell, and the inner side surface of the airway component is in contact with the bottom of the door lining.

8. The refrigeration equipment door according to claim 7, characterized in that: The bottom of the door lining has a protruding portion that is recessed toward the side where the front panel of the door shell is located, and a recessed portion is correspondingly formed on the inner side surface of the airway component.

9. A refrigeration equipment door, characterized in that: include: a door shell having an air inlet formed thereon; a door lining having an air outlet formed thereon; A foaming layer formed in a door body cavity surrounded by the door shell and the door lining; An air pressure balancing device is arranged in the inner cavity of the door body, and includes an air duct component and a one-way valve. An air flow channel is formed inside the air duct component, and both ends of the air flow channel pass through the air duct component to respectively connect the air inlet and the air outlet; the one-way valve is used to open and close the air flow channel to balance the air pressure inside and outside the refrigeration equipment box.

10. A refrigeration device, comprising a box body and a door body mounted on the box body to open or close the box body, characterized in that: The door body is a refrigeration equipment door body according to any one of claims 1 to 9.

Images