Door structure and storage equipment

Abstract

The utility model discloses a door structure and storage equipment, and belongs to the technical field of refrigeration. The door structure comprises a door body, an air pressure balance part and a heat insulation part, the door body is used for being installed on a cabinet body of the storage equipment, an airflow channel is formed in the door body, and the airflow channel is provided with an air inlet communicating with the outside and an air outlet communicating with a chamber formed by the cabinet body; the air pressure balancing part is movably arranged in the airflow channel so as to open or close the airflow channel; the heat insulation piece is arranged in the airflow channel; and when the air pressure in the compartment is smaller than the external air pressure, the air pressure balance part opens the airflow channel. The air pressure balance part capable of opening or closing the air flow channel is arranged in the door body, so that the pressure between the chamber and the outside can be quickly balanced after the door is closed to reduce the instantaneous tension required for opening the door, and the heat exchange between the chamber and the outside can be isolated before the door is opened. And the heat insulation piece is arranged in the air flow channel, so that condensation of the air flow channel caused by temperature difference is reduced, and the service life of the storage equipment is prolonged.

Description

Technical Field

[0001] The present application belongs to the field of refrigeration technology, and in particular relates to a door structure and storage equipment. Background Art

[0002] Both freezers and refrigerators are household appliances that store items at low temperatures to maintain their freshness. When the door is closed, the internal air contracts due to cold, causing the internal air pressure to drop below the external atmospheric pressure, making it difficult to open the door. Currently, balancing holes are often used in the door to avoid negative pressure and reduce the effort required to open the door. However, since balancing holes always connect the outside and the inside, cold air leaks, reducing cooling efficiency and increasing energy consumption. Furthermore, the high-temperature air outside and the low-temperature air inside merge at the balancing hole, causing condensation around the hole, affecting service life and reliability. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a door structure and storage device. By providing a pressure balancing member within the door body that can open or close the airflow channel, the structure not only quickly balances the pressure between the compartment and the outside world after closing the door, thereby reducing the instantaneous pulling force required to open the door, but also isolates the heat exchange between the compartment and the outside world before opening the door, thereby ensuring the cooling effect while maximizing energy conservation. At the same time, by providing a thermal insulation member within the airflow channel, the structure further helps to reduce the generation of condensation in the airflow channel due to temperature differences, thereby extending the service life of the storage device as much as possible.

[0004] In a first aspect, the present application provides a door structure for use in a storage device, the door structure comprising:

[0005] a door body, adapted to be mounted on the cabinet body of the storage device, wherein the door body forms an air flow channel having an air inlet communicating with the outside and an air outlet communicating with the compartment formed by the cabinet body;

[0006] an air pressure balance member movably disposed in the air flow channel to open or close the air flow channel;

[0007] A heat insulating member is provided in the air flow channel; wherein,

[0008] When the air pressure in the compartment is lower than the external air pressure, the air pressure balance member opens the air flow channel.

[0009] According to the door structure of the present application, on the one hand, when the door body is closed, the air inside the cabinet contracts due to the cold, and the internal air pressure is lower than the external atmospheric pressure. The air pressure balance member opens the air flow channel, thereby allowing the external gas to enter the cabinet through the air inlet and the air outlet in sequence. After the air pressure inside the compartment is made consistent with the atmospheric pressure outside the storage device, the air pressure balance member closes the air flow channel, thereby avoiding heat exchange between the inside and outside of the compartment, ensuring the cooling effect while saving energy as much as possible. On the other hand, by arranging a heat insulation member in the air flow channel, the temperature difference in the air flow channel is reduced, which helps to reduce the heat exchange between the external high-temperature gas and the low-temperature gas in the compartment in the air flow channel, and helps to reduce the generation of condensation. In addition, when the heat insulation member is hygroscopic, it can also absorb the moisture of the air passing through the air flow channel, thereby reducing the humidity in the air flow channel and further reducing the formation of condensation.

[0010] According to one embodiment of the present application, the air inlet and the air outlet are oriented perpendicularly, and the air flow channel includes:

[0011] a first sub-channel, wherein the air outlet is provided at one end of the first sub-channel, and the first sub-channel at least partially extends in the direction of the air outlet, and the heat insulating member is provided in the first sub-channel;

[0012] The second sub-channel, the air inlet is provided at one end of the second sub-channel, the other end of the second sub-channel is connected to the other end of the first sub-channel, and the second sub-channel at least partially extends along the direction of the air inlet.

[0013] According to one embodiment of the present application, a projection of the first sub-channel in the direction of the air outlet is located within a projection of the second sub-channel in the direction of the air outlet.

[0014] According to one embodiment of the present application, the first sub-channel includes:

[0015] a first section, wherein the air outlet is provided at one end of the first section, and the first section extends in the direction of the air outlet;

[0016] The second section has two ends connected to the other end of the first section and the end of the second sub-channel away from the air outlet, and the second section extends in the direction of the air inlet; wherein,

[0017] The thermal insulation member is located at the connection between the first section and the second section.

[0018] According to one embodiment of the present application, the first section is inclined from a direction away from the air outlet to a direction close to the air inlet.

[0019] According to one embodiment of the present application, the thermal insulation member is in contact with the inner side wall of the first sub-channel close to the air inlet.

[0020] According to one embodiment of the present application, the air pressure balance member includes:

[0021] a first valve body, movably disposed at the air inlet to open or close the air inlet; and / or

[0022] The second valve body is movably arranged at the connection between the first sub-channel and the second sub-channel to connect or isolate the first sub-channel and the second sub-channel.

[0023] According to one embodiment of the present application, a first shell and a second shell connected to each other are provided in the door body, a first sub-channel is formed between the first shell and the second shell, a second sub-channel is formed by the second shell, and the thermal insulation component is provided on the outer wall of the second shell.

[0024] According to one embodiment of the present application, it further includes:

[0025] at least one first partition plate, disposed between the first shell and the second shell, for dividing the first sub-channel into at least two first branch channels spaced apart along the length direction of the door body;

[0026] At least one second partition is disposed in the second shell and is used to separate the second sub-channel into at least two second branch channels spaced apart along the length direction of the door body.

[0027] According to one embodiment of the present application, the door body also forms an installation cavity, which has a first port connected to the outside world and a second port connected to the compartment, and the air flow channel is located in the installation cavity. The inner wall of the installation cavity located at the edge of the first port extends in a direction close to the air outlet and extends into the air flow channel through the air inlet, and the second port faces the compartment and is connected to the air outlet.

[0028] In a second aspect, the present application provides a storage device, comprising:

[0029] Cabinets, forming compartments; and

[0030] The door structure as described above is installed on the cabinet in an openable and closable manner to close the compartment.

[0031] The storage device of the present application utilizes a pressure-balancing element within the door structure that can open or close the airflow channel. This not only allows for rapid pressure balancing between the compartment and the outside world after closing the door, thereby reducing the instantaneous pulling force required to open the door, but also isolates the compartment from heat exchange before opening the door, ensuring cooling efficiency while minimizing energy consumption. Furthermore, the provision of thermal insulation within the airflow channel further helps reduce condensation caused by temperature differences within the airflow channel, thereby maximizing the service life of the storage device.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 This is a partial schematic diagram of the door structure provided in the embodiment of the present application. Figure 1 ;

[0035] Figure 2 This is a partial schematic diagram of the door structure provided in the embodiment of the present application. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the structure of the first shell and the second shell provided in the embodiment of the present application. Figure 1 ;

[0037] Figure 4 This is a schematic diagram of the structure of the first shell and the second shell provided in the embodiment of the present application. Figure 2 ;

[0038] Figure 5 This is an exploded view of the door structure provided by an embodiment of the present application with the door body hidden;

[0039] Figure 6 This is a schematic structural diagram of the cooperation between the second shell and the thermal insulation member provided in an embodiment of the present application;

[0040] Figure 7 is a structural schematic diagram of the second housing provided in an embodiment of the present application;

[0041] Figure 8 It is a structural schematic diagram of the first shell provided in an embodiment of the present application.

[0042] Reference numerals:

[0043] 100, door body;

[0044] 110, mounting cavity; 111, first through hole; 112, second opening;

[0045] 200, air flow channel; 201, air inlet; 202, air outlet;

[0046] 210, first subchannel; 211, first section; 212, second section;

[0047] 220, second subchannel;

[0048] 230, first shell; 240, second shell; 241, main body section; 242, connecting section;

[0049] 300, air pressure balance member; 310, first valve body; 320, second valve body;

[0050] 400, thermal insulation;

[0051] 500, first partition; 600, second partition. DETAILED DESCRIPTION

[0052] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0053] Reference below Figures 1-8 The door structure provided in an embodiment of the present application is described. The door structure is applied to a storage device and includes a door body 100 , an air pressure balance member 300 , and a heat insulation member 400 .

[0054] It should be noted that the storage devices in the embodiments can be understood as refrigerated storage devices in a broad sense, including but not limited to refrigerators, freezers, display cabinets, beverage cabinets, wine cabinets, cold storage cabinets, and refrigerated vending machines. Storage devices have diverse structural forms and a wide range of applications. As a specific example, an upright freezer is used as a specific example in the embodiments of this application.

[0055] For ease of understanding, the length direction of the door body 100 is the left-right direction, the width direction of the door body 100 is the front-back direction, and the height direction of the door body 100 is the up-down direction.

[0056] The door 100 is mounted on a cabinet for storage equipment to open or close the compartment formed by the cabinet. The door 100 forms an airflow channel 200 having an air inlet 201 communicating with the outside world and an air outlet 202 communicating with the compartment. It should be noted that the size and shape of the airflow channel 200, the air inlet 201, and the air outlet 202 can be designed according to actual needs and are not specifically limited in this embodiment.

[0057] A pressure balance member 300 is movably disposed within the airflow channel 200 to open or close the airflow channel 200. A thermal insulator 400 is disposed within the airflow channel 200; when the air pressure within the compartment is lower than the external pressure, the pressure balance member 300 opens the airflow channel 200. The thermal insulator 400 includes, but is not limited to, aluminum foil insulation, EVA (ethylene-vinyl acetate copolymer) insulation, or fiberglass.

[0058] It is understood that, on the one hand, when the door 100 is closed, the air inside the cabinet contracts due to the cold, and the internal air pressure is less than the external atmospheric pressure. The pressure balance member 300 opens the airflow channel 200, allowing the external air to enter the cabinet through the air inlet 201 and the air outlet 202 in sequence. After the air pressure inside the compartment is equal to the atmospheric pressure outside the storage device, the pressure balance member 300 closes the airflow channel 200, thereby preventing heat exchange between the interior and exterior of the compartment, ensuring the cooling effect while maximizing energy conservation. On the other hand, by providing the thermal insulation member 400 within the airflow channel 200, the temperature difference within the airflow channel 200 is reduced, which helps to reduce the heat exchange between the external high-temperature air and the low-temperature air in the compartment in the airflow channel 200, thereby helping to reduce the formation of condensation. In addition, if the thermal insulation member 400 is hygroscopic, it can also absorb moisture from the air passing through the airflow channel 200, thereby reducing the humidity in the airflow channel 200 and further reducing the formation of condensation.

[0059] According to the door structure provided by the embodiment of the present application, by providing a pressure balance member 300 within the door body 100 that can open or close the airflow channel 200, not only can the pressure between the compartment and the outside world be quickly balanced after the door is closed, thereby reducing the instantaneous pulling force required to open the door, but it can also isolate heat exchange between the compartment and the outside world before the door is opened, thereby ensuring cooling efficiency while maximizing energy conservation. Furthermore, by providing a thermal insulation member 400 within the airflow channel 200, condensation caused by temperature differences in the airflow channel 200 can be further reduced, thereby maximizing the service life of the storage device.

[0060] In some embodiments, as Figure 2 、 Figure 4 and Figure 7As shown, the air inlet 201 and the air outlet 202 are oriented perpendicularly. The air flow channel 200 includes a first sub-channel 210 and a second sub-channel 220. The air outlet 202 is located at one end of the first sub-channel 210, and the first sub-channel 210 extends at least partially in the direction of the air outlet 202. The thermal insulation member 400 is disposed in the first sub-channel 210. The air inlet 201 is located at one end of the second sub-channel 220, and the other end of the second sub-channel 220 is connected to the other end of the first sub-channel 210, and the second sub-channel 220 extends at least partially in the direction of the air inlet 201. It should be noted that the shape and size of the first sub-channel 210 and the second sub-channel 220 can be designed according to actual needs and are not specifically limited in this embodiment.

[0061] It will be appreciated that when airflow channel 200 is open, outside air can enter the second sub-channel 220 and first sub-channel 210 sequentially through the air inlet 201 before flowing into the compartment through the air outlet 202. The air inlet 201 and air outlet 202 are oriented perpendicularly, with the first sub-channel 210 extending at least partially along the direction of the air outlet 202 and the second sub-channel 220 extending at least partially along the direction of the air inlet 201. This maximizes the length of the path for air flow in airflow channel 200 within a limited space, helping to minimize the temperature difference between the compartment and the outside, and reducing the risk of condensation forming within airflow channel 200. Furthermore, the flow of air from the compartment into airflow channel 200 through the air outlet 202 and the flow of outside air into airflow channel 200 through the air inlet 201, which is perpendicular to the air outlet 202, help separate outside air from the air within the compartment, reducing direct mixing of the gases. Furthermore, since air can flow in and out in different directions, pressure differences are reduced, effectively achieving pressure balance inside and outside the storage device.

[0062] In this embodiment, the air outlet 202 is facing backward, the air inlet 201 is facing downward, the first sub-channel 210 extends at least partially in the front-to-back direction, the air outlet 202 is arranged at the rear end of the first sub-channel 210, the second sub-channel 220 extends at least partially in the up-down direction, and the air inlet 201 is arranged at the lower end of the second sub-channel 220.

[0063] In some embodiments, as Figure 4 As shown, the projection of the first sub-channel 210 in the direction of the air outlet 202 is located within the projection of the second sub-channel 220 in the direction of the air outlet 202 .

[0064] It can be understood that, along the direction of the air outlet 202, the projection of the first sub-channel 210 falls completely within the projection of the second sub-channel 220, thereby optimizing the space utilization inside the door body 100, so that the first sub-channel 210 and the second sub-channel 220 are arranged compactly while extending the path length of the gas flowing in the airflow channel 200 as much as possible.

[0065] In some embodiments, as Figures 2 to 5 、 Figure 7 As shown, the first sub-channel 210 includes a first section 211 and a second section 212. The air outlet 202 is located at one end of the first section 211, and the first section 211 extends toward the air outlet 202. The second section 212 is connected at both ends to the other end of the first section 211 and the end of the second sub-channel 220 away from the air outlet 202, respectively, and extends toward the air inlet 201. The thermal insulation 400 is located at the junction of the first section 211 and the second section 212. It should be noted that the length and shape of the first section 211 and the second section 212 can be designed according to actual needs and are not specifically limited in this embodiment.

[0066] It can be understood that by extending the first section 211 toward the air outlet 202, and the second section 212 and second sub-channel 220 toward the air inlet 201, with the projections of the first section 211 and second section 212 along the air outlet 202 both located within the projection of the second sub-channel 220, external air is redirected multiple times within the airflow channel 200, further reducing the temperature difference between the inside and outside of the storage device and the likelihood of condensation forming on the surface of the airflow channel 200. Furthermore, the thermal insulation 400 is at least partially located at the junction of the first section 211 and the second section 212, thereby further effectively reducing condensation caused by temperature differences.

[0067] In this embodiment, the air outlet 202 faces rearward, the air inlet 201 faces downward, the first section 211 extends in the front-to-back direction, the air outlet 202 is located at the rear end of the first section 211, the second section 212 extends in the top-to-bottom direction, and the lower end of the second section 212 is connected to the front end of the first section 211. The second sub-channel 220 extends in the top-to-bottom direction, the air inlet 201 is located at the lower end of the second sub-channel 220, and the upper end of the second sub-channel 220 is connected to the upper end of the second section 212. That is, outside air first moves from bottom to top through the air inlet 201 to the upper end of the second sub-channel 220, then from top to bottom to the lower end of the second section 212, and finally moves from front to back in the first section 211 and enters the compartment through the air outlet 202.

[0068] In some embodiments, as Figure 4 As shown, the first section 211 is inclined from a direction away from the air outlet 202 to a direction close to the air inlet 201 .

[0069] It can be understood that by tilting the first section 211 downward from back to front, it helps to reduce the turbulence and noise generated by the gas flow, and can also guide the condensation that may form at the air outlet 202 to flow toward the insulation member 400, thereby reducing the risk of moisture in the rest of the air flow channel 200.

[0070] In some embodiments, as Figure 2 、 Figure 4 and Figure 6 As shown, the heat insulating member 400 is in contact with the inner wall of the first sub-channel 210 near the air inlet 201 .

[0071] It can be understood that a portion of the thermal insulation member 400 is attached to the inner bottom wall of the first section 211, and another portion of the thermal insulation member 400 is attached to the inner front wall of the second section 212, thereby avoiding the possibility of heat exchange between the high-temperature gas in the second sub-channel 220 and the low-temperature gas in the room between the first sub-channel 210, thereby reducing condensation caused by temperature difference.

[0072] In some embodiments, as Figure 2 、 Figure 4 、 Figure 5 and Figure 6 As shown, the air pressure balance member 300 includes a first valve body 310 movably disposed at the air inlet 201 to open or close the air inlet 201 .

[0073] It is understandable that the first valve body 310 is provided at the air inlet 201, which can dynamically and accurately control the air flow and air pressure in the air flow channel 200 according to actual needs, reduce unnecessary energy loss, and improve the energy efficiency of the storage device.

[0074] In some embodiments, as Figure 2 、 Figure 4 and Figure 5 As shown, the air pressure balance member 300 includes a second valve body 320 , which is movably disposed at the connection between the first sub-channel 210 and the second sub-channel 220 to connect or disconnect the first sub-channel 210 and the second sub-channel 220 .

[0075] It can be understood that setting the second valve body 320 at the connection between the first sub-channel 210 and the second sub-channel 220 can dynamically and accurately control the air flow and air pressure in the air flow channel 200 according to actual needs, reduce unnecessary energy loss, and improve the energy efficiency of the storage device.

[0076] In this embodiment, the first valve body 310 is movably disposed at the air inlet, and the second valve body 320 is movably disposed at the junction of the second section 212 and the second sub-channel 220. This enhances sealing performance and durability, achieves more precise control of gas flow, and reduces energy loss in the storage device. Of course, in other embodiments, either the first valve body 310 or the second valve body 320 may be provided, and this embodiment does not impose specific limitations on this.

[0077] Specifically, if Figure 2 and Figure 4As shown, since the air inlet 201 faces downward, one end of the first valve body 310, which is arranged in the left-right direction, is rotatably disposed about the air inlet 201 along the front-back axis. A first weight is provided at the other end of the first valve body 310. The upper end of the second valve body 320, which is rotatably disposed about the left-right axis at the upper end of the second sub-channel 220, is provided at the lower end of the second valve body 320. This means that when the air pressure inside the compartment is lower than the external pressure, the external air drives the first valve body 310 to rotate upward, opening the air inlet 201 and entering the second sub-channel 220. This then drives the second valve body 320 to rotate backward, connecting the second section 212 with the second sub-channel 220 and allowing it to enter the first sub-channel 210, thus achieving rapid equalization of the air pressure inside and outside the compartment. Finally, the first weight causes the first valve body 310 to rotate downward, blocking the air inlet 201. The second weight causes the second valve body 320 to rotate forward, isolating the second section 212 from the second sub-channel 220, thus achieving a double seal of the airflow channel 200.

[0078] In some embodiments, as Figures 2 to 8 As shown, a first shell 230 and a second shell 240 are connected to each other in the door body 100. The first shell 230 and the second shell 240 together form a first sub-channel 210, and the second shell 240 forms a second sub-channel 220. The heat insulating member 400 is disposed on the outer wall of the second shell 240. The connection methods of the first shell 230 and the second shell 240 to the door body 100 and the connection methods between the first shell 230 and the second shell 240 include but are not limited to welding, threaded connection, riveted connection, or clamping.

[0079] It can be understood that the first valve body 310 and the second valve body 320 are both movably arranged on the second shell 240, and the second sub-channel 220 is formed by the second shell 240 itself, and the first sub-channel 210 is jointly formed between the first shell 230 and the second shell 240, so as to facilitate disassembly and assembly and reduce manufacturing and maintenance costs.

[0080] In this embodiment, Figure 6 and Figure 7 As shown, the second shell 240 includes a main body section 241 and a connecting section 242. The main body section 241 extends in the up-down direction and forms a second sub-channel 220. The connecting section 242 extends in the front-to-back direction and is arranged in the middle of the rear wall of the main body section 241. The thermal insulation component 400 is respectively fitted with part of the rear wall of the main body section 241 and part of the upper wall of the connecting section 242. A first section 211 is formed between the lower wall of the first shell 230 and the upper wall of the connecting section 242. A second section 212 is formed between the front wall of the first shell 230 and the rear wall of the main body section 241.

[0081] In some embodiments, as Figure 7As shown, the connecting section 242 is tilted downward from back to front, and the lower wall surface of the first shell 230 at the rear is tilted downward from back to front, so that the first section 211 is tilted downward from back to front, which helps to reduce turbulence and noise generated during gas flow, and can also guide condensation that may be formed at the air outlet 202 to flow to the thermal insulation component 400, thereby reducing the risk of moisture in the rest of the air flow channel 200.

[0082] In some embodiments, as Figure 3 、 Figure 4 、 Figure 7 and Figure 8 As shown, the door structure further includes a first partition 500 and a second partition 600. At least one first partition 500 is disposed between the first shell 230 and the second shell 240, and is used to separate the first sub-channel 210 into at least two first branch channels spaced apart along the length of the door body 100. At least one second partition 600 is disposed within the second shell 240, and is used to separate the second sub-channel 220 into at least two second branch channels spaced apart along the length of the door body 100. It should be noted that the shape and size of the first partition 500 and the second partition 600 can be designed according to actual needs and are not specifically limited in this embodiment.

[0083] It will be appreciated that the first baffle 500 is used to divide the first subchannel 210 into at least two first branch channels spaced apart in the left-right direction, and each first branch channel merges at a position near the air outlet 202 and the second branch channel. Each first branch channel includes a first section 211 and a second section 212. This facilitates more precise distribution and control of gas flow, increases the surface area of ​​gas contact with the first subchannel 210, and improves heat exchange efficiency. The second baffle 600 is used to divide the second subchannel 220 into at least two second branch channels spaced apart in the left-right direction, and each second branch channel merges at a position near the air inlet 201 and the first subchannel 210. This also facilitates more precise distribution and control of gas flow, increases the surface area of ​​gas contact with the first subchannel 210, and improves heat exchange efficiency.

[0084] For example, one first separator 500 is provided, and three second separators 600 are provided.

[0085] In some embodiments, as Figure 1 and Figure 2 As shown, the door body 100 also forms an installation cavity 110, which has a first port communicating with the outside and a second port 112 communicating with the compartment. The air flow channel 200 is located in the installation cavity 110, and the inner wall of the installation cavity 110 located at the edge of the first port extends in a direction close to the air outlet 202 and extends into the air flow channel 200 through the air inlet 201. The second port 112 faces the compartment and is communicated with the air outlet 202.

[0086] It is understood that the first housing 230 is disposed on the inner rear wall of the installation cavity 110, the second housing 240 is connected to the inner rear wall and the inner lower wall of the installation cavity 110, respectively, and the second port 112 is located within the area formed by the connection between the first and second housings 230, 240 at the rear ends. The inner lower wall of the door body 100 located at the edge of the first port extends upward and passes through the air inlet 201 into the air flow channel 200, thereby limiting the second housing 240 in the front-to-back direction. That is, when the air pressure in the compartment is lower than the external air pressure, the external air passes through the first port, sequentially passes through the second sub-channel 220, the second section 212 and the first section 211, and the air outlet 202, and then enters the compartment from the second port 112.

[0087] In this embodiment, Figure 1 and Figure 2 As shown, the first opening is provided through the lower surface of the door body 100 , and the second opening 112 is provided through the rear surface of the door body 100 .

[0088] In some embodiments, as Figure 1 and Figure 2 As shown, a plurality of first through holes 111 are formed on a side of the door body 100 close to the cabinet body. The first through holes 111 are spaced apart along the length of the door body 100, and the second opening 112 includes a plurality of first through holes 111. It should be noted that the number and shape of the first through holes 111 can be designed according to actual needs and are not specifically limited in this embodiment.

[0089] It is understandable that the multiple first through holes 111 are spaced apart in the left-right direction, which can increase the contact area between the gas and the chamber and reduce the retention of gas at the first port, thereby reducing the possibility of condensation and reducing the noise generated when the gas flows.

[0090] The present application also provides a storage device. This storage device includes a cabinet and the aforementioned door structure. The cabinet forms a compartment; a door 100 is openably mounted to the cabinet to enclose the compartment. It should be noted that the size and shape of the compartment can be designed based on actual conditions and are not specifically limited in this embodiment. In this embodiment, the compartment opens forward.

[0091] It should be noted that the storage devices in the embodiments can be understood as refrigerated storage devices in a broad sense, including but not limited to refrigerators, freezers, display cabinets, beverage cabinets, wine cabinets, cold storage cabinets, and refrigerated vending machines. Storage devices have diverse structural forms and a wide range of applications. As a specific example, an upright freezer is used as a specific example in the embodiments of this application.

[0092] According to the storage device provided in the embodiment of the present application, by disposing a pressure balancing member 300 within the door body 100 of the door structure, which can open or close the airflow channel 200, not only can the pressure between the compartment and the outside world be quickly balanced after the door is closed, thereby reducing the instantaneous pulling force required to open the door, but it can also isolate the heat exchange between the compartment and the outside world before the door is opened, thereby ensuring the cooling effect while maximizing energy conservation. At the same time, by disposing a thermal insulation member 400 within the airflow channel 200, it further helps to reduce the generation of condensation in the airflow channel 200 due to temperature differences, thereby maximizing the service life of the storage device.

[0093] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship. Among them, the terms "first position" and "second position" are two different positions.

[0094] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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.

[0095] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or removable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0096] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0097] In the description of this application, “plurality” means two or more.

[0098] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0099] In the description of this application, the phrases "above," "above," and "above" a first feature of a second feature include the phrases "directly above" and "diagonally above" the first feature, or simply indicate that the first feature is higher in level than the second feature. The phrases "below," "below," and "below" a first feature of a second feature include the phrases "directly below" and "diagonally below" the first feature, or simply indicate that the first feature is lower in level than the second feature.

[0100] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0101] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A door structure, used in storage equipment, characterized in that: include: a door body, adapted to be mounted on the cabinet body of the storage device, wherein the door body forms an air flow channel having an air inlet communicating with the outside and an air outlet communicating with the compartment formed by the cabinet body; an air pressure balance member movably disposed in the air flow channel to open or close the air flow channel; A heat insulating member is provided in the air flow channel; wherein, When the air pressure in the compartment is lower than the external air pressure, the air pressure balance member opens the air flow channel.

2. The door structure according to claim 1, characterized in that: The air inlet and the air outlet are oriented perpendicularly, and the air flow channel includes: a first sub-channel, wherein the air outlet is provided at one end of the first sub-channel, and the first sub-channel at least partially extends in the direction of the air outlet, and the heat insulating member is provided in the first sub-channel; The second sub-channel, the air inlet is provided at one end of the second sub-channel, the other end of the second sub-channel is connected to the other end of the first sub-channel, and the second sub-channel at least partially extends along the direction of the air inlet.

3. The door structure according to claim 2, characterized in that: A projection of the first sub-channel in the direction of the air outlet is located within a projection of the second sub-channel in the direction of the air outlet.

4. The door structure according to claim 3, characterized in that: The first sub-channel includes: a first section, wherein the air outlet is provided at one end of the first section, and the first section extends in the direction of the air outlet; The second section has two ends connected to the other end of the first section and the end of the second sub-channel away from the air outlet, and the second section extends in the direction of the air inlet; wherein, The thermal insulation member is located at the connection between the first section and the second section.

5. The door structure according to claim 4, characterized in that: The first section is inclined from a direction away from the air outlet to a direction close to the air inlet.

6. The door structure according to claim 2, characterized in that: The heat insulating member is in contact with the inner side wall of the first sub-channel close to the air inlet.

7. The door structure according to claim 2, characterized in that: The air pressure balance member comprises: a first valve body, movably disposed at the air inlet to open or close the air inlet; and / or The second valve body is movably arranged at the connection between the first sub-channel and the second sub-channel to connect or isolate the first sub-channel and the second sub-channel.

8. The door structure according to claim 2, characterized in that: The door body is provided with a first shell and a second shell connected to each other, the first shell and the second shell together form a first sub-channel, the second shell forms a second sub-channel, and the heat insulating member is provided on the outer wall of the second shell.

9. The door structure according to claim 8, characterized in that: Also includes: at least one first partition plate, disposed between the first shell and the second shell, for dividing the first sub-channel into at least two first branch channels spaced apart along the length direction of the door body; At least one second partition is disposed in the second shell and is used to separate the second sub-channel into at least two second branch channels spaced apart along the length direction of the door body.

10. The door structure according to any one of claims 1 to 9, characterized in that: The door body also forms an installation cavity, which has a first port communicating with the outside world and a second port communicating with the compartment. The air flow channel is located in the installation cavity. The inner wall of the installation cavity located at the edge of the first port extends in a direction close to the air outlet and extends into the air flow channel through the air inlet. The second port faces the compartment and is communicated with the air outlet.

11. A storage device, characterized in that: include: The cabinet forms a compartment; as well as The door structure according to any one of claims 1 to 10, wherein the door structure is installed on the cabinet body in an openable and closable manner to enclose the compartment.

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