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 glass door plate and a door frame assembly, the glass door plate comprises a first glass plate, a second glass plate and a third glass plate which are arranged at intervals, an air interlayer is formed between the first glass plate and the second glass plate, and a vacuum interlayer is formed between the second glass plate and the third glass plate; the frame assembly comprises a first frame and a second frame, the first frame is arranged on the outer side of the first glass plate in a surrounding mode, the second frame is installed on the inner side of the first frame and matched with the first glass plate, and the second frame is provided with at least two abutting parts matched with the face, away from the second glass plate, of the third glass plate. And at least one abutting part is hermetically connected with the third glass plate. The loss of cooling capacity can be effectively reduced, the thermal insulation performance of the door structure is improved, it can be ensured that double-point abutting can be formed at all positions of the edge of the face, facing the box body, of the third glass plate, and then the strength needed by the glass door plate for maintaining a vacuum interlayer is improved.

Description

Technical Field

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

[0002] In order to display the items placed inside for sale, the door of the refrigeration equipment often uses glass doors. However, the current glass doors usually use hollow glass insulation, that is, two or three pieces of glass are fixed together to form a hollow interlayer, and then inert gas is selectively injected into the hollow interlayer to improve the insulation effect. However, due to the large temperature difference between the inside and outside, the transparent characteristics of the glass door and the thickness of the hollow interlayer, there will still be a large loss of cold, resulting in increased energy consumption of the refrigeration equipment. 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 a storage device, which can effectively reduce the loss of cold and improve the thermal insulation performance of the door structure by forming an air barrier and a vacuum barrier through a glass door panel. At the same time, by providing at least two abutting portions that cooperate with the third glass panel on the second frame, it is ensured that the edge of the third glass panel facing the side of the box body can form a double-point abutment to provide a more stable support, thereby improving the strength required for the glass door panel to maintain the vacuum barrier.

[0004] In a first aspect, the present application provides a door structure, which is applied to a storage device, and the door structure comprises:

[0005] A glass door panel, comprising a first glass panel, a second glass panel and a third glass panel arranged at intervals, an air barrier layer being formed between the first glass panel and the second glass panel, and a vacuum barrier layer being formed between the second glass panel and the third glass panel;

[0006] The door frame assembly includes a first frame and a second frame, wherein the first frame is arranged around the outer side of the first glass plate, the second frame is installed on the inner side of the first frame and cooperates with the first glass plate, and the second frame is provided with at least two abutting portions respectively cooperating with a side of the third glass plate away from the second glass plate, and at least one of the abutting portions is sealed and connected to the third glass plate.

[0007] According to the door structure of the present application, since there is no air or heat transfer medium in the vacuum interlayer, the vacuum interlayer can effectively reduce the loss of cold. At the same time, the air interlayer can further isolate the outside world from the inside of the box of the storage device for heat exchange, thereby greatly reducing the loss of cold inside the storage device, and improving the insulation performance of the door structure to reduce the energy consumption of the refrigeration equipment. The first frame is arranged on the outside of the first glass plate to fix and support it. The second frame is installed on the inside of the first frame and cooperates with the first glass plate to further enhance the stability of the structure. At the same time, since at least two abutting portions cooperating with the third glass plate are provided on the second frame, it is ensured that the edge of the third glass plate facing the box can form double points to provide more stable support, thereby improving the strength required for the glass door panel to maintain the vacuum interlayer. In addition, since at least one abutting portion is sealed with the third glass plate, the sealing performance of the box when the door structure is closed is ensured to reduce the energy consumption of the refrigeration equipment.

[0008] According to an embodiment of the present application, the mating position between the third glass plate and the abutting portion located at the outermost side is spaced apart from the outer end adjacent to the third glass plate.

[0009] According to an embodiment of the present application, at least one of the abutting portions is inclined outwardly in a direction approaching the first glass plate.

[0010] According to an embodiment of the present application, the second frame forms a plurality of functional cavities, and some of the functional cavities have openings communicating with the outside, and the door structure further includes:

[0011] A first reinforcement member, at least one of the functional chambers is provided with the first reinforcement member.

[0012] According to one embodiment of the present application, the second frame includes:

[0013] a first straight section, a portion of the abutting portion being disposed on the first straight section;

[0014] a second straight section, wherein the first straight section and the second straight section are arranged at intervals along the length direction of the glass door panel, another part of the abutting portion is arranged on the second straight section, and the second straight sections are arranged at intervals along the width direction of the glass door panel;

[0015] Two arc segments are arranged at two ends of the second straight segment and are respectively connected to the first straight segment to form a closed frame, and the arc segments are sealed and connected to a side of the third glass plate away from the second glass plate.

[0016] According to one embodiment of the present application, it also includes:

[0017] The second reinforcement member is disposed through the arc segment, and two ends of the second reinforcement member extend outwardly into the first straight segment and the second straight segment respectively.

[0018] According to one embodiment of the present application, it also includes:

[0019] The third reinforcing member is arranged close to the outer edge of the first glass plate and located in the air barrier, and the third reinforcing member is respectively in contact with the first glass plate and the second glass plate.

[0020] According to one embodiment of the present application, it also includes:

[0021] an anti-fog film, disposed on a side of the third glass plate away from the second glass plate; and / or

[0022] A heating element is arranged near the outer edge of the first glass plate and located in the air barrier.

[0023] In a second aspect, the present application provides a storage device, the storage device comprising:

[0024] a housing, forming a compartment; and

[0025] The door structure as described above is installed on the box body in an openable and closable manner, and is used to close the compartment.

[0026] According to the storage device of the present application, the air barrier and vacuum barrier are formed by the glass door panel of the door structure, which can effectively reduce the loss of cold and improve the thermal insulation performance of the door structure. At the same time, by providing at least two abutting portions on the second frame to cooperate with the third glass panel, it is ensured that the edge of the third glass panel facing the box body can form double points of abutment to provide more stable support, thereby improving the strength required for the glass door panel to maintain the vacuum barrier.

[0027] According to one embodiment of the present application, the storage device is a vending machine, and the storage device further includes:

[0028] A refrigeration system is used to provide coldness to the compartment so that the temperature of the compartment is suitable to be below zero degrees.

[0029] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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:

[0031] Figure 1It is one of the structural schematic diagrams of the door structure provided in the embodiment of the present application;

[0032] Figure 2 This is the second structural schematic diagram of the door structure provided in the embodiment of the present application;

[0033] Figure 3 is one of the cross-sectional views of the door structure provided in the embodiment of the present application;

[0034] Figure 4 This is the second cross-sectional view of the door structure provided in the embodiment of the present application;

[0035] Figure 5 This is the third cross-sectional view of the door structure provided in the embodiment of the present application;

[0036] Figure 6 This is the fourth cross-sectional view of the door structure provided in the embodiment of the present application;

[0037] Figure 7 This is the fifth cross-sectional view of the door structure provided in the embodiment of the present application;

[0038] Figure 8 This is the sixth cross-sectional view of the door structure provided in the embodiment of the present application.

[0039] Reference numerals:

[0040] 100, glass door panel; 110, first glass panel; 120, second glass panel; 130, third glass panel;

[0041] 200, door frame assembly; 210, first frame;

[0042] 220, second frame; 2201, functional cavity;

[0043] 221, first straight section; 222, second straight section;

[0044] 223, arc segment;

[0045] 300. Contact part;

[0046] 410, first reinforcement member; 420, second reinforcement member; 430, third reinforcement member;

[0047] 500, light bar; 600, door seal; 700, heating element. DETAILED DESCRIPTION

[0048] The embodiments of the present application are described in detail below, and 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 cannot be understood as limiting the present application.

[0049] Reference below Figure 1-Figure 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 glass door panel 100 and a door frame assembly 200 .

[0050] It should be noted that the storage equipment in the embodiment can be understood as refrigeration storage equipment in a broad sense, including but not limited to refrigerators, freezers, display cabinets, beverage cabinets, wine cabinets, cold cabinets, and refrigerated vending machines and other refrigeration storage equipment. The storage equipment has various structural forms and a wide range of applications. As a specific example, the embodiments of the present application are illustrated by taking a vending cabinet as a specific example. The temperature of the compartment formed by the box body of the vending cabinet can be lower than 0 degrees Celsius. In some embodiments, the temperature of the compartment of the vending cabinet can be -5°C to -30°C, such as -25°C. The vending cabinet is used to sell frozen goods, such as ice cream and ice cubes.

[0051] The glass door panel 100 includes a first glass panel 110, a second glass panel 120, and a third glass panel 130 that are spaced apart from each other. An air barrier is formed between the first glass panel 110 and the second glass panel 120, and a vacuum barrier is formed between the second glass panel 120 and the third glass panel 130. It should be noted that the shapes and sizes of the first glass panel 110, the second glass panel 120, and the third glass panel 130 can be designed according to actual needs, and this embodiment does not impose any specific restrictions on this.

[0052] It should be noted that, for the convenience of description, the length direction of the glass door panel 100 is the up-down direction; the thickness direction of the glass door panel 100 is the front-back direction; and the width direction of the glass door panel 100 is the left-right direction.

[0053] It can be understood that since there is no air or heat transfer medium in the vacuum insulation layer, the use of the vacuum insulation layer can effectively reduce the loss of cold. At the same time, the use of the air insulation layer can further isolate the outside world and the interior of the storage device for heat exchange, thereby greatly reducing the loss of cold inside the storage device, improving the thermal insulation performance of the door structure, and reducing the energy consumption of the refrigeration equipment.

[0054] The door frame assembly 200 includes a first frame 210 and a second frame 220. The first frame 210 is arranged on the outside of the first glass plate 110. The second frame 220 is installed on the inside of the first frame 210 and matches with the first glass plate 110. The second frame 220 is provided with at least two abutting portions 300 respectively matching with a side of the third glass plate 130 away from the second glass plate 120, and at least one of the abutting portions 300 is sealed and connected with the third glass plate 130. The material of the first frame 210 includes but is not limited to aluminum alloy. The material of the second frame 220 includes but is not limited to polyvinyl chloride (PVC).

[0055] It should be noted that the first frame 210 is used to be installed in a box body of the storage device in an openable and closable manner, so that the glass door panel 100 can close the compartment formed by the box body. The first glass plate 110, the second glass plate 120 and the third glass plate 130 are arranged at intervals in a direction close to the box body. Exemplarily, the opening of the compartment faces forward, and the first glass plate 110, the second glass plate 120 and the third glass plate 130 are arranged at intervals from front to back.

[0056] It is understandable that the first frame 210 is arranged around the outside of the first glass plate 110 to play a fixing and supporting role. The second frame 220 is installed on the inner side of the first frame 210 and cooperates with the first glass plate 110 to further enhance the stability of the structure. At the same time, since the second frame 220 is provided with at least two abutting portions 300 that cooperate with the third glass plate 130, it is ensured that the edge of the third glass plate 130 facing the box body can form a double-point abutment at all places to provide a more stable support, thereby improving the strength required for the glass door panel 100 to maintain the vacuum barrier. In addition, since at least one abutting portion 300 is sealed and connected to the third glass plate 130, the sealing performance of the box body is ensured when the door structure is closed, so as to reduce the energy consumption of the refrigeration equipment.

[0057] According to the door structure provided by the embodiment of the present application, the air barrier and the vacuum barrier are formed by the glass door panel 100, which can effectively reduce the loss of cold and improve the thermal insulation performance of the door structure. At the same time, by providing at least two abutting portions 300 that cooperate with the third glass plate 130 on the second frame 220, it is ensured that the edge of the third glass plate 130 facing the box body can form double points to provide more stable support, thereby improving the strength required for the glass door panel 100 to maintain the vacuum barrier.

[0058] In some embodiments, Figure 3 , Figure 4 and Figure 7 As shown, the thickness of the vacuum interlayer is less than that of the air interlayer, so that when the second glass plate 120 and the third glass plate 130 are evacuated, the vacuum interlayer can be formed more effectively, reducing the manufacturing difficulty, and the thicker the air interlayer is, the better the thermal insulation effect can be. It should be noted that the thickness of the vacuum interlayer and the air interlayer can be designed according to actual needs, and this embodiment does not impose specific restrictions on this. For example, the thickness of the vacuum interlayer is 0.5 mm.

[0059] In some embodiments, Figure 3 , Figure 4 and Figure 7As shown, the thickness of the first glass plate 110 is less than the thickness of the second glass plate 120, and the thickness of the first glass plate 110 is less than the thickness of the third glass plate 130. Exemplarily, the thickness of the first glass plate 110 is 3.2 mm, and the thickness of the second glass plate 120 and the third glass plate 130 is 4 mm.

[0060] In some embodiments, Figure 1 , Figure 6 and Figure 8 As shown, a decorative pattern is provided on the front surface or the rear surface of the first glass plate 110 . The decorative pattern is formed by spraying or silk-screening on the glass surface and then sintering, thereby improving the aesthetics of the glass door panel 100 .

[0061] In some embodiments, Figures 1 to 8 As shown, since the projection of the second frame 220 in the front-to-back direction is an annular square, the projection of the abutting portion 300 in the front-to-back direction is also an annular square, thereby ensuring that the edge of the glass door panel 100 is evenly stressed and helping to enhance the stability of the entire door structure.

[0062] It should be noted that the second frame 220 is provided with at least two abutting portions 300 , that is, the projections of the abutting portions 300 in the front-rear direction are nested and arranged from the inside to the outside along the center of the glass door panel 100 .

[0063] In some embodiments, Figure 3 , Figure 4 and Figure 7 As shown, the mating portion between the third glass plate 130 and the outermost abutting portion 300 is spaced apart from the outer end adjacent to the third glass plate 130 .

[0064] It can be understood that the left side wall of the third glass plate 130 and the abutment point of the third glass plate 130 and the left part of the abutment part 300 located at the outermost side are arranged at intervals in the left-right direction. Compared with the abutment point 300 and the left edge of the rear surface of the third glass plate 130, the connection strength between the two can be more uniform, stress concentration can be avoided, and the strength required for the door frame assembly 200 to maintain the vacuum barrier of the glass door plate 100 is improved. Similarly, the right side wall of the third glass plate 130 and the abutment point of the third glass plate 130 and the right part of the abutment part 300 located at the outermost side are arranged at intervals in the left-right direction; the upper end wall of the third glass plate 130 and the upper part of the abutment point of the third glass plate 130 and the outermost abutment part 300 are arranged at intervals in the up-down direction, and the lower end wall of the third glass plate 130 and the lower part of the abutment point of the third glass plate 130 and the outermost abutment part 300 are arranged at intervals in the up-down direction.

[0065] In some embodiments, Figure 3 , Figure 4 and Figure 7As shown, at least one abutting portion 300 is inclined outwardly in a direction close to the first glass plate 110. It should be noted that the inclination angle of the abutting portion 300 can be designed according to actual needs, and this embodiment does not impose any specific limitation on this.

[0066] It can be understood that the left part of the abutting portion 300 located on the outermost side is inclined to the left from bottom to top, the right part of the abutting portion 300 located on the outermost side is inclined to the right from bottom to top, the upper part of the abutting portion 300 located on the outermost side is inclined forward from bottom to top, and the lower part of the abutting portion 300 located on the outermost side is inclined backward from bottom to top, thereby forming an acute angle between the rear surface of the third glass plate 130 and the left part of the abutting portion 300, which not only helps to reduce air circulation and enhance sealing performance, but also the inclination of the abutting portion 300 can provide better support, reduce the lateral force on the third glass plate 130, thereby improving the stability of the overall structure, and also helps to disperse the force, reduce the direct impact on the third glass plate 130, play a certain shock-absorbing role, and ensure as much as possible the strength required for the glass door panel 100 to form each vacuum layer.

[0067] In this embodiment, Figure 3 , Figure 4 and Figure 7 As shown, the second frame 220 is provided with two abutting portions 300, and the outermost abutting portion 300 is inclined, and the inner abutting portion 300 is in vertical contact with the third glass plate 130. Of course, in other embodiments, both abutting portions 300 may be inclined, or multiple abutting portions 300 may be provided, and this embodiment does not specifically limit this.

[0068] In some embodiments, the abutting portion 300 and the second frame 220 are an integrally formed structure, which improves the strength of the second frame 220 required to maintain the vacuum barrier of the glass door panel 100.

[0069] In some embodiments, Figure 3 , Figure 4 and Figure 7 As shown, the second frame 220 forms a plurality of functional cavities 2201 , and some of the functional cavities 2201 have openings communicating with the outside. The door structure further includes a first reinforcement member 410 , and at least one functional cavity 2201 is provided with the first reinforcement member 410 .

[0070] It can be understood that the second frame 220 forms a plurality of functional cavities 2201, which not only facilitate wire routing but also reduce the weight of the entire door structure. Additionally, by arranging the first reinforcing member 410 in the functional cavity 2201, the strength of the entire door structure can be further improved while ensuring a compact structure, reducing the possibility of deformation of the door structure due to a large temperature difference between the inside and outside. At the same time, since the second frame 220 is made of PVC material, the second frame 220 has a certain elastic deformation property. Therefore, forming the deformable functional cavity 2201 can absorb and disperse external impact forces, playing a shock-absorbing role. It can also help release stress when the frame is subjected to uneven pressure, preventing damage to the glass door panel 100 caused by stress concentration, and maintaining good sealing performance even when there are uneven surfaces between the glass door panel 100 and the cabinet body.

[0071] In addition, since some of the functional cavities 2201 have openings communicating with the outside, it can not only further increase the deformation range of the functional cavity 2201 but also facilitate the installation of components that need to be partially exposed.

[0072] In some embodiments, as Figure 2 、 Figure 3 and Figure 7 shown, the door structure further includes two light strips 500 spaced apart in the left-right direction. The light strips 500 extend in the up-down direction, and the two light strips 500 are respectively installed in two functional cavities 2201 with opposite openings, so as to illuminate the items in the compartment. It should be noted that the specific shape and size of the light strip 500 can be designed according to actual needs, and this embodiment does not make specific limitations in this regard.

[0073] In some embodiments, as Figures 2 to 4 、 Figures 6 to 8 shown, the door structure further includes a door seal 600. The door seal 600 is installed in the functional cavity 2201 with an opening facing backward. The projection of the door seal 600 in the front-rear direction is in an annular square shape, thereby ensuring the sealing of the compartment. It should be noted that the specific shape and size of the door seal 600 can be designed according to actual needs, and this embodiment does not make specific limitations in this regard.

[0074] In some embodiments, as Figure 3 and Figure 6 shown, the two functional cavities 2201 located on the left and right sides of the third glass plate 130 are respectively provided with a first reinforcing member 410, and the first reinforcing member 410 is provided with a through groove with a notch facing forward, thereby providing additional support in the length direction of the door structure to improve its bending resistance. It should be noted that the shape and size of the first reinforcing member 410 and the through groove can be designed according to actual needs, and this embodiment does not make specific limitations in this regard. Exemplarily, the cross-section of the first reinforcing member 410 is in a C shape.

[0075] In this embodiment, as Figure 3 and Figure 6 As shown in Figure 6 , a first reinforcing member 410 is also provided in the functional cavity 2201 located on the lower side of the third glass plate 130, so as to provide additional support in the width direction of the door structure and improve its bending resistance performance. Of course, in other embodiments, the first reinforcing member 410 may also be provided in the functional cavity 2201 located on the upper side of the third glass plate 130, and this embodiment does not make specific limitations on this.

[0076] In some embodiments, as Figure 5 and Figure 6 shown, the second frame 220 includes a first straight section 221, a second straight section 222 and two arc sections 223. A part of the abutting portion 300 is arranged on the first straight section 222; another part of the abutting portion 300 is arranged on the second straight section 222. The first straight section 221 and the second straight section 222 are arranged at intervals along the length direction of the glass door panel 100, and the second straight section 222 is arranged at intervals along the width direction of the glass door panel 100; the two arc sections 223 are arranged at both ends of the second straight section 222 and are respectively connected to the first straight section 221 to form a closed frame, and the arc section 223 is hermetically connected to the surface of the third glass plate 130 away from the second glass plate 120.

[0077] It can be understood that the projection of the first straight section 221 in the front-back direction is in a U shape, the second straight section 222 is located below the first straight section 221 and extends in the left-right direction. The first straight section 221, one of the arc sections 223, the second straight section 222 and the other arc section 223 are connected end to end to form a closed frame, which is not only beautiful but also can reduce the risk of scratching users at the lower edge of the door structure when opening the door, improving the safety of using the storage device. It should be noted that the curvature radius and size of the arc section 223 can be designed according to actual needs, and this embodiment does not make specific limitations on this.

[0078] In some embodiments, the corner of the first frame 210 corresponding to the arc section 223 is also arc-shaped to further ensure the safety and beauty of using the storage device.

[0079] Of course, in other embodiments, the first straight section 221 includes two vertical parts, a horizontal part and two arc parts. The two vertical parts are arranged at intervals in the left-right direction and the vertical parts extend in the up-down direction. The horizontal part extends in the left-right direction. One of the vertical parts, one of the arc parts, the horizontal part, the other arc part and the other vertical part are connected in sequence, so that the edges at the upper and lower ends of the second frame 220 are smoothly transitioned, further improving the safety of using the storage device.

[0080] In some embodiments, as Figure 4 、 Figures 6 to 8As shown, the door structure further includes a second reinforcement member 420 , which passes through the arc segment 223 , and two ends of the second reinforcement member 420 extend outwardly into the first straight segment 221 and the second straight segment 222 , respectively.

[0081] It can be understood that one of the second reinforcement members 420 is installed in the functional cavity 2201 formed by the arc segment 223 located on the left side, one end of the second reinforcement member 420 extends upward to the functional cavity 2201 formed on the left side of the first straight segment 221, and the other end extends to the right to the functional cavity 2201 formed by the second straight segment 222; the other second reinforcement member 420 is installed in the functional cavity 2201 formed by the arc segment 223 located on the right side, one end of the second reinforcement member 420 extends upward to the functional cavity 2201 formed on the right side of the first straight segment 221, and the other end extends to the left to the functional cavity 2201 formed by the second straight segment 222, which not only helps to disperse the stress acting on the arc segment 223 and reduce stress concentration, thereby improving the durability of the door structure, but also enhances the connection strength of the second frame 220, thereby improving the impact resistance and stability of the door structure as a whole.

[0082] In some embodiments, Figure 6 and Figure 8 As shown, part of the second reinforcement 420 is located in the functional cavity 2201 where the first reinforcement 410 is installed, which not only effectively utilizes the limited space resources and improves the compactness of the structure, but also forms a composite reinforcement structure to enhance the overall stability and bearing capacity of the door structure.

[0083] In some embodiments, Figures 3 to 5 and Figure 7 As shown, the door structure further includes a third reinforcement member 430, which is disposed near the outer edge of the first glass plate 110 and located in the air barrier, and the third reinforcement member 430 is respectively abutted against the first glass plate 110 and the second glass plate 120.

[0084] It can be understood that the rear surface of the third reinforcement 430 abuts against the front surface of the second glass plate 120, and the front surface of the third reinforcement 430 abuts against the rear surface of the first glass plate 110, and the projection of the third reinforcement 430 along the front-to-back direction is located inside the first glass plate 110 and is in the shape of an annular square, which helps to provide additional support to the first glass plate 110 and ensure that the thickness of the air barrier formed meets the requirements, further improving the sealing and heat insulation of the door structure, and improving the durability and service life of the door structure.

[0085] In some embodiments, the door structure further includes an anti-fog film (not shown), which is disposed on a side of the third glass plate 130 away from the second glass plate 120 .

[0086] It is understood that the anti-fog film is attached to the rear surface of the third glass plate 130 to prevent the surface of the glass door panel 100 from fogging due to temperature difference, maintain visual clarity, ensure that the user can clearly see the items displayed in the room, and improve the user experience. Exemplarily, the material of the anti-fog film includes but is not limited to titanium dioxide, nano-silicon dioxide or PET-carbon fiber.

[0087] In some embodiments, Figures 3 to 5 and Figure 7 As shown, the door structure further includes a heating element 700, which is disposed near the outer edge of the first glass plate 110 and located in the air barrier.

[0088] It can be understood that the heating element 700 is attached to the rear surface of the first glass plate 110 and is located on the outside of the third reinforcement member 430, so as to increase the temperature of the air barrier, reduce the blurring of the edge of the glass door panel 100 due to condensation caused by the large temperature difference between the inner and outer surfaces, improve the visibility of the glass door panel 100, effectively prevent fog condensation, and improve the user experience.

[0089] The embodiment of the present application further provides a storage device, which includes a box body and the above-mentioned door structure, wherein the box body forms a compartment; and the door structure is installed on the box body in an openable and closable manner to close the compartment.

[0090] It should be noted that the storage equipment in the embodiment can be understood as refrigeration storage equipment in a broad sense, including but not limited to refrigerators, freezers, display cabinets, beverage cabinets, wine cabinets, cold cabinets, and refrigerated vending machines and other refrigeration storage equipment. The storage equipment has various structural forms and a wide range of applications. As a specific example, the embodiments of the present application are illustrated by taking a vending cabinet as a specific example. The temperature of the compartment formed by the box body of the vending cabinet can be lower than 0 degrees Celsius. In some embodiments, the temperature of the compartment of the vending cabinet can be -5°C to -30°C, such as -25°C. The vending cabinet is used to sell frozen goods, such as ice cream and ice cubes.

[0091] According to the storage device provided by the embodiment of the present application, the air barrier and the vacuum barrier are formed by the glass door panel 100 of the door structure, which can effectively reduce the loss of cold and improve the thermal insulation performance of the door structure. At the same time, by providing at least two abutting portions 300 that cooperate with the third glass panel 130 on the second frame 220, it is ensured that the edge of the third glass panel 130 facing the box body can form a double-point abutment at all places to provide more stable support, thereby improving the strength required for the glass door panel 100 to maintain the vacuum barrier.

[0092] In some embodiments, the storage device is a vending machine, and the storage device further comprises a refrigeration system, wherein the refrigeration system is used to provide coldness to the compartment so that the temperature of the compartment is suitable to be below zero degrees.

[0093] It is understood that the compartment can constitute at least one of a normal temperature room, a cold storage room or a freezing room, and the normal temperature room can be cooled to form a cold storage room, the cold storage room can be further cooled to form a freezing room, and the freezing room can be heated to form a cold storage room. When the refrigeration system is used to provide coldness to the compartment so that the temperature of the compartment is suitable for being below zero degrees Celsius, the items in the room are frozen at this time, and the compartment constitutes a freezing room. When the refrigeration system is used to provide coldness to the compartment so that the temperature of the compartment is suitable for being above 0 degrees Celsius and below 9 degrees Celsius, the compartment constitutes a cold storage room at this time. When the refrigeration system is not running, the compartment constitutes a normal temperature room.

[0094] The terms "first", "second", etc. in the specification and claims of the present 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 under appropriate circumstances, 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 one 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 with each other are in an "or" relationship.

[0095] 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 referred device or element 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.

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

[0097] In the description of the present 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 that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0099] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0100] In the description of this specification, the description with reference to the terms "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 schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[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 spirit 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, characterized in that: Applied to storage equipment, the door structure includes: A glass door panel, comprising a first glass panel, a second glass panel and a third glass panel arranged at intervals, an air barrier layer being formed between the first glass panel and the second glass panel, and a vacuum barrier layer being formed between the second glass panel and the third glass panel; The door frame assembly includes a first frame and a second frame, wherein the first frame is arranged around the outer side of the first glass plate, the second frame is installed on the inner side of the first frame and cooperates with the first glass plate, and the second frame is provided with at least two abutting portions respectively cooperating with a side of the third glass plate away from the second glass plate, and at least one of the abutting portions is sealed and connected to the third glass plate.

2. The door structure according to claim 1, characterized in that: The matching position between the third glass plate and the abutting portion located at the outermost side is spaced apart from the outer end adjacent to the third glass plate.

3. The door structure according to claim 1, characterized in that: At least one of the abutting portions is inclined outwardly in a direction approaching the first glass plate.

4. The door structure according to claim 1, characterized in that: The second frame forms a plurality of functional cavities, and some of the functional cavities have openings communicating with the outside, and the door structure further includes: A first reinforcement member, at least one of the functional chambers is provided with the first reinforcement member.

5. The door structure according to claim 1, characterized in that: The second frame includes: a first straight section, a portion of the abutting portion being disposed on the first straight section; a second straight section, wherein the first straight section and the second straight section are arranged at intervals along the length direction of the glass door panel, another part of the abutting portion is arranged on the second straight section, and the second straight sections are arranged at intervals along the width direction of the glass door panel; Two arc segments are arranged at two ends of the second straight segment and are respectively connected to the first straight segment to form a closed frame, and the arc segments are sealed and connected to a side of the third glass plate away from the second glass plate.

6. The door structure according to claim 5, characterized in that: Also includes: The second reinforcement member is disposed through the arc segment, and two ends of the second reinforcement member extend outwardly into the first straight segment and the second straight segment respectively.

7. The door structure according to any one of claims 1 to 6, characterized in that: Also includes: The third reinforcing member is arranged close to the outer edge of the first glass plate and located in the air barrier, and the third reinforcing member is respectively in contact with the first glass plate and the second glass plate.

8. The door structure according to any one of claims 1 to 6, characterized in that: Also includes: an anti-fog film, disposed on a side of the third glass plate away from the second glass plate; and / or A heating element is arranged near the outer edge of the first glass plate and located in the air barrier.

9. A storage device, characterized in that: include: Box, forming a compartment; as well as The door structure according to any one of claims 1 to 8 is installed on the box body in an openable and closable manner to close the compartment.

10. The storage device according to claim 9, characterized in that: The storage device is a vending machine, and the storage device further comprises: A refrigeration system is used to provide coldness to the compartment so that the temperature of the compartment is suitable to be below zero degrees.

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