Refrigerator with inner and outer layers

Abstract

The application discloses an inner-outer layer refrigeration freezer, which comprises a box body, an air duct module and a refrigeration module, the air duct module comprises an air duct component, an axial flow fan and a cross flow fan which are arranged on the air duct component; a tray for placing an outer layer fresh-keeping container is arranged on a table top of the box body, the tray is recessed into the box body, and a ventilation hole is arranged on a side surface of the tray; an evaporator of the refrigeration module is arranged in the box body, and the air duct component is arranged on the evaporator; the axial flow fan is located above the evaporator, and the cross flow fan is located above the axial flow fan. The inner-outer layer refrigeration freezer can realize inner-outer layer refrigeration and improve practicability.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, specifically to an inner and outer layer refrigeration freezer. Background Technology

[0002] Currently, most restaurants still use traditional refrigeration freezers to store ingredients. Items can only be kept fresh by being placed inside the freezer, and the freezer door must be opened to retrieve them. For frequently used items, this results in staff wasting a significant amount of time repeatedly retrieving them.

[0003] To address these issues, some technological improvements have been made to products on the market. For example, Chinese Patent No. CN210018982U discloses a beverage dispensing workbench. This workbench uses an S-shaped heat exchange tube to exchange heat with cold water inside a water tank. By activating a blower, the gas inside the S-shaped heat exchange tube is absorbed and discharged through an air outlet to the inside of the workbench and the blower nozzle. When the cold air enters the workbench, it can cool and preserve the beverage inside. The cold air is also branched off and discharged through the air outlet to the preservation box, thus cooling the preservation box and the portioning box, preserving the semi-finished product without affecting the dispensing process. The gas from the heat exchange between the workbench and the beverage returns to the inside of the S-shaped heat exchange tube for cyclical cooling.

[0004] While this existing technology can achieve refrigeration and preservation of the inside and outside of the worktable, its preservation box is located on the worktable, and the blower exhausts cold air into the inside of the worktable and the inside of the preservation box through the air outlet pipe and the blower nozzle. The refrigeration air volume is small and it is difficult to ensure the uniformity of airflow, resulting in poor preservation effect. In addition, the pipeline structure is complex and is prone to blockage failure after long-term use. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides an inner and outer layer refrigeration freezer that can achieve refrigeration in both the inner and outer layers, thereby improving its practicality.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an inner and outer layer refrigeration freezer, including a cabinet, an air duct module and a refrigeration module, wherein the air duct module includes an air duct component, an axial flow fan and a cross flow fan disposed on the air duct component;

[0007] The cabinet has a tray on its surface for placing the outer preservation container. The tray is recessed into the cabinet and has ventilation holes on its side. The evaporator of the refrigeration module is located inside the cabinet, and the air duct components are located on the evaporator. The axial fan is located above the evaporator, and the cross-flow fan is located above the axial fan.

[0008] The air inlet of the air duct component is located below the evaporator; the air inlet of the axial fan is located inside the air duct component, and the air outlet of the axial fan faces the inner cavity of the housing; the air inlet of the cross-flow fan is set downward and located inside the air duct component, and the air outlet of the cross-flow fan is directly opposite the air inlet of the tray.

[0009] This technical solution provides an inner and outer layer refrigeration freezer. Through a dual-circulation air duct structure, it can achieve two refrigeration zones, allowing materials to be stored inside the freezer or on the outer countertop. Frequently used materials can be placed in the outer countertop refrigeration zone for both preservation and easy access, saving time and improving practicality. The freezer uses axial flow fans and cross-flow fans to circulate cold air between the inner and outer layers, resulting in a large cooling volume and more uniform airflow, effectively improving preservation. Its simple structure facilitates assembly, disassembly, and maintenance. Furthermore, the tray is recessed into the inner cavity of the freezer, allowing direct cold air circulation via the cross-flow fan, further enhancing the refrigeration effect.

[0010] In a preferred embodiment, the cross-flow fan is located on the upper part of the duct component, and the upper part of the duct component is provided with a right-angled groove for engaging with the tray so that the air outlet of the cross-flow fan is aligned with the air inlet of the tray.

[0011] In this technology, by setting a right-angled groove that matches the tray, the air inlet of the tray can be reliably and accurately connected to the air outlet of the cross-flow fan, avoiding the air outlet being blocked; at the same time, the tray is close to the air duct components, so that the cold energy from the evaporator can be transferred to the tray, which helps to improve the cooling effect.

[0012] In a preferred embodiment, the duct component is provided with a first mounting shell for mounting multiple axial flow fans. The left side of the first mounting shell is provided with an inclined surface so that the leftmost axial flow fan is tilted to the left relative to the middle axial flow fan. This avoids the defect of a large temperature difference between the left and right sides of the box cavity caused by the lack of airflow on the left side of the box cavity.

[0013] In a preferred embodiment, the outer preservation container includes a material bucket and / or a material tray;

[0014] The work surface is also equipped with a material bucket rim and / or a material tray support. A sealing strip is provided between the material bucket rim and the work surface, and a sealing strip is provided between the material tray support and the work surface, which can form good airtightness and reduce cold loss.

[0015] In a preferred embodiment, a seal is provided between the air outlet edge of the cross-flow fan and the air inlet edge of the tray, ensuring good sealing and sufficient airflow for the outer cooling layer.

[0016] In a preferred embodiment, the evaporator is located on the inner wall at the rear of the cabinet, which shortens the cold air circulation path, facilitates rapid cold air circulation, improves the cooling effect, and enhances the preservation effect.

[0017] In a preferred embodiment, the enclosure includes an outer shell and an inner liner disposed within the outer shell, with a foam layer between the outer shell and the inner liner serving to insulate against heat.

[0018] In a preferred technical solution, the front of the cabinet is provided with a door, and a sealing strip is provided between the door and the cabinet. When the door is closed, it contacts the cabinet through the sealing strip, resulting in good sealing performance. The inside of the door is provided with a foam layer, which serves as heat insulation.

[0019] In a preferred embodiment, the lower part of the cabinet is provided with support wheels to allow the freezer to be moved.

[0020] In a preferred embodiment, the support wheels are equipped with a braking device to prevent the freezer from continuing to slide or roll when it is not needed to move, thus ensuring parking stability. For example, when the freezer is parked on a slope or needs to be parked for a long time, the braking device can prevent accidental sliding.

[0021] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are as follows: The inner and outer layer refrigeration freezer provided by this utility model can realize two-layer refrigeration zones through the air duct structure of dual cold air circulation. Materials can be stored inside the cabinet or on the outer table. When in use, frequently used materials can be placed in the refrigeration zone of the outer table, which can keep them fresh and make them easy to access, thus improving practicality. The freezer uses axial flow fans and cross flow fans to realize the cold air circulation of the inner and outer layers respectively. The cooling air volume is large and the airflow is more uniform, which can effectively improve the preservation effect. Moreover, the structure is simple and easy to install, disassemble and maintain. In addition, the tray is recessed into the inner cavity of the cabinet and directly circulates cold air through the cross flow fan, resulting in better refrigeration effect.

[0022] In addition, other advantages of this invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the inner and outer layer refrigeration freezer of this utility model;

[0025] Figure 2 This is a front sectional view of the inner and outer layer refrigeration freezer of this utility model;

[0026] Figure 3 This is a side sectional view of the inner and outer layer refrigeration freezer of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the air duct module of this utility model;

[0028] Figure 5 This is a schematic diagram of the cross-flow fan of this utility model;

[0029] Explanation of reference numerals in the attached drawings: 100, cabinet; 101, tabletop; 102, tray; 103, material bucket; 1031, material bucket base; 104, material tray; 105, material bucket rim; 106, material tray support; 107, cabinet door; 108, support wheel; 200, air duct module; 201, air duct component; 2010, air duct inlet; 2011, right-angle groove; 202, axial flow fan; 2021, first mounting shell; 203, cross-flow fan; 2031, cross-flow fan inlet; 2032, cross-flow fan outlet; 2033, second mounting shell; 300, refrigeration module; 301, evaporator. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In one embodiment, such as Figure 1-5As shown, an inner and outer layer refrigeration freezer includes a cabinet 100, an air duct module 200 and a refrigeration module 300. The air duct module 200 includes an air duct component 201, an axial flow fan 202 and a cross flow fan 203 disposed on the air duct component 201.

[0033] The cabinet 100 has a tray 102 for placing the outer preservation container on the table 101. The tray 102 is recessed into the cabinet 100 and has ventilation holes on its side. The evaporator 301 of the refrigeration module 300 is located inside the cabinet 100, and the air duct component 201 is located on the evaporator 301. The axial fan 202 is located above the evaporator 301, and the cross-flow fan 203 is located above the axial fan 202.

[0034] The air inlet 2010 of the air duct component 201 is located below the evaporator 301; the air inlet of the axial fan 202 is located inside the air duct component 201, and the air outlet of the axial fan 202 faces the inner cavity of the housing 100; the air inlet 2031 of the cross-flow fan 203 is set downward and located inside the air duct component 201, and the air outlet 2032 of the cross-flow fan 203 faces the air inlet of the tray 102.

[0035] Preferably, the air inlet 2010 is oriented towards the inner cavity of the housing 100 to better draw in air from the inner cavity of the housing 100; the evaporator 301 is located within the air duct formed by the air duct components 201. Hot air in the inner cavity of the housing 100 enters the air duct through the air inlet 2010, is cooled by the evaporator 301 to form cold air, and then flows into the housing 100 and the tray 102 respectively through the axial flow fan 202 and the cross flow fan 203; the number of axial flow fans 202... There may be one or more, preferably multiple, in which case multiple axial flow fans 202 are arranged side by side in the horizontal direction; the air inlet of the tray 102 may be composed of multiple ventilation holes on the rear side of the tray 102; the number of cross flow fans 203 is one, the air inlet and outlet of the cross flow fan 203 are longer than those of the axial flow fans 202, and the air volume is large and uniform. Preferably, the length of the air outlet 2032 of the cross flow fan 203 is close to the length of the tray 102, so that a portion of the cold air can be blown evenly into the tray 102.

[0036] Specifically, the tabletop 101 has an opening area, and the tray 102 is embedded in the opening area and recessed into the inner cavity of the cabinet 100. The four sides of the tray 102 are provided with ventilation holes, and the ventilation hole on the rear side constitutes the air inlet of the tray 102. The refrigeration module 300 includes a compressor (not shown in the figure), a condenser (not shown in the figure), a throttling device (not shown in the figure), and an evaporator 301, which are sequentially connected through refrigerant pipelines. Preferably, the refrigeration module 300 also includes a temperature controller (not shown in the figure) for controlling the refrigeration temperature. The temperature controller is connected to an inner layer temperature sensor (not shown in the figure) located in the inner cavity of the cabinet 100 and an outer layer temperature sensor (not shown in the figure) located in the tray 102. When the temperature detected by the inner layer temperature sensor and the outer layer temperature sensor both reach the set temperature, the compressor is controlled to stop working.

[0037] In specific implementation, such as Figure 3 As shown by the middle arrow, hot air from the inner cavity of the cabinet 100 enters through the air inlet 2010 of the air duct component 201. The cold air, after heat exchange with the evaporator 301, is divided into two circulation paths: the outer layer of cold air is drawn in by the cross-flow fan 203, and the wide-area cold air blown out flows through the tray 102 to achieve heat exchange and cooling; the inner layer of cold air is drawn in by the axial flow fan 202, and the cold air blown out flows directly back into the inner cavity of the cabinet 100. The inner cavity of the cabinet 100 is separated from the outer layer by the tray 102. Through heat conduction, the low temperature of the inner cavity of the cabinet 100 can also assist in the cooling of the outer layer. The outer preservation container, as the outer cooling zone, can preserve and store frequently used materials, while the inner cavity of the cabinet 100, as the internal cooling zone, can store infrequently used materials. This eliminates the need for frequent material handling, thereby reducing the time spent manually handling materials and improving efficiency.

[0038] The above embodiment provides an inner and outer layer refrigeration freezer, which, through a dual-circulation air duct structure, can achieve two refrigeration zones, inner and outer. Materials can be stored inside the cabinet 100 or on the outer countertop 101. During use, frequently used materials are placed in the refrigeration zone of the outer countertop 101, ensuring both freshness and easy access, thus improving practicality. The freezer uses an axial flow fan 202 and a cross-flow fan 203 to achieve inner and outer layer cold air circulation, resulting in a large cooling air volume and more uniform airflow, effectively improving the preservation effect. Furthermore, the simple structure facilitates assembly, disassembly, and maintenance. In addition, the tray 102 is recessed into the inner cavity of the cabinet 100, directly circulating cold air through the cross-flow fan 203, resulting in even better refrigeration.

[0039] In one embodiment, the cross-flow fan 203 is disposed on the upper part of the air duct component 201. The upper part of the air duct component 201 is provided with a right-angled groove 2011, which is used to engage with the tray 102 so that the air outlet 2032 of the cross-flow fan 203 is aligned with the air inlet of the tray 102.

[0040] The upper part of the air duct component 201 is provided with a second mounting shell 2033 for mounting the cross-flow fan 203. The second mounting shell 2033 has an air outlet area facing the air outlet 2032 of the cross-flow fan 203. The side of the second mounting shell 2033 with the air outlet area forms the vertical surface of the right-angled groove 2011.

[0041] Specifically, the right-angled groove 2011 engages with the lower part of the rear side of the tray 102. When the lower part of the tray 102 is placed on the right-angled groove 2011, the air outlet area of ​​the second mounting shell 2033 is directly opposite the air inlet of the tray 102, that is, the air outlet 2032 of the cross-flow fan 203 is aligned with the air inlet of the tray 102.

[0042] In the above embodiment, by setting a right-angled groove 2011 that cooperates with the tray 102, the air inlet of the tray 102 can reliably and accurately connect with the air outlet 2032 of the cross-flow fan 203, avoiding the air outlet being blocked; at the same time, the tray 102 is close to the air duct component 201, so that the cold energy from the evaporator 301 can be conducted to the tray 102, which helps to improve the cooling effect.

[0043] In one embodiment, the duct component 201 is provided with a first mounting shell 2021 for mounting a plurality of axial flow fans 202. The left side of the first mounting shell 2021 is provided with an inclined surface so that the leftmost axial flow fan 202 is tilted to the left relative to the axial flow fan 202 in the middle. This can avoid the defect of a large temperature difference between the left side, the middle and the right side of the inner cavity of the housing 100 caused by no air flow on the left side of the inner cavity.

[0044] In one embodiment, the outer preservation container includes a material bucket 103 and / or a material tray 104;

[0045] The work surface 101 is also provided with a material bucket rim 105 and / or a material tray support 106. A sealing strip is provided between the material bucket rim 105 and the work surface 101, and a sealing strip is provided between the material tray support 106 and the work surface 101, which can form good airtightness and reduce the loss of cold energy.

[0046] The material barrel rim 105 is used to place multiple material barrels 103, and the material tray support 106 is used to place multiple material trays 104; the bottom of the material barrel 103 is provided with a material barrel base 1031, which is placed on the tray 102 for heat exchange with cold air.

[0047] In practice, the seal can be made of silicone, rubber, other plastics, or glass glue.

[0048] In one embodiment, a seal is provided between the edge of the air outlet 2032 of the cross-flow fan 203 and the edge of the air inlet of the tray 102, which provides good sealing and ensures sufficient airflow for the outer cooling layer.

[0049] In one embodiment, the evaporator 301 is located on the inner wall of the rear side of the housing 100, which shortens the cold air circulation path, facilitates rapid cold air circulation, improves the cooling effect, and enhances the preservation effect.

[0050] In one embodiment, the housing 100 includes an outer shell and an inner liner disposed within the outer shell, with a foam layer provided between the outer shell and the inner liner to insulate against heat.

[0051] In one embodiment, the front of the cabinet 100 is provided with a cabinet door 107, and a sealing strip is provided between the cabinet door 107 and the cabinet 100. When the cabinet door 107 is closed, it contacts the cabinet 100 through the sealing strip, and the sealing performance is good. The inside of the cabinet door 107 is provided with a foam layer, which plays a role in heat insulation.

[0052] The cabinet door 107 can be a single door or a double door that opens to the left and right.

[0053] In one embodiment, the lower part of the cabinet 100 is provided with support wheels 108, which allows the refrigeration freezer to be moved.

[0054] In one embodiment, the support wheel 108 is equipped with a braking device to prevent the freezer from continuing to slide or roll when it does not need to be moved, thus ensuring parking stability. For example, when the freezer is parked on a slope or needs to be parked for a long time, the braking device can prevent accidental sliding.

[0055] Based on the above embodiments, the working principle of the inner and outer layer refrigeration freezer is as follows: When the freezer is turned on, the refrigeration module 300 starts, and the temperature of the evaporator 301 drops rapidly. Hot air from inside the cabinet 100 is drawn into the evaporator 301 through the air inlet 2010 via the fans (axial fan 202 and cross-flow fan 203) to achieve heat exchange. Then, the cold air is guided to the axial fan 202 and cross-flow fan 203 through the air duct component 201, flowing to the air outlet of the axial fan 202 and the tray 102 respectively. The air inlet of the axial flow fan 202 is used for air inlet; the cold air flowing to the outlet of the axial flow fan 202 flows directly back to the inner cavity of the box 100; the cold air flowing to the tray 102 undergoes heat exchange at the bottom of the material barrel 103, then flows through the bottom of the material tray 104 for heat exchange, and then flows back to the inner cavity of the box 100 from the ventilation holes around the tray 102; at this time, the two cold air streams converge in the inner cavity of the box 100, and are then drawn into the evaporator 301 by the fan from the air inlet 2010 of the air duct, repeating the cycle until both the inner and outer layers reach the required temperature, thus achieving simultaneous cooling of the inner and outer layers.

[0056] Other components and operations of the inner and outer layer refrigeration freezers according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0057] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0059] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. A freezer with inner and outer refrigeration layers, characterized in that: It includes a housing (100), an air duct module (200) and a cooling module (300). The air duct module (200) includes an air duct component (201), an axial flow fan (202) and a cross flow fan (203) disposed on the air duct component (201). The countertop (101) of the housing (100) is provided with a tray (102) for placing the outer preservation container. The tray (102) is recessed into the housing (100), and the side of the tray (102) is provided with ventilation holes. The evaporator (301) of the refrigeration module (300) is located inside the housing (100), and the air duct component (201) is located on the evaporator (301). The axial flow fan (202) is located above the evaporator (301), and the cross flow fan (203) is located above the axial flow fan (202). The air inlet (2010) of the air duct component (201) is located below the evaporator (301); the air inlet of the axial fan (202) is located inside the air duct component (201), and the air outlet of the axial fan (202) faces the inner cavity of the housing (100); the air inlet (2031) of the cross-flow fan (203) is downward and located inside the air duct component (201), and the air outlet (2032) of the cross-flow fan (203) is directly opposite the air inlet of the tray (102).

2. The inner and outer layer refrigeration freezer according to claim 1, characterized in that: The cross-flow fan (203) is located on the upper part of the air duct component (201). The upper part of the air duct component (201) is provided with a right-angled groove (2011). The right-angled groove (2011) is used to cooperate and contact with the tray (102) so that the air outlet (2032) of the cross-flow fan (203) is aligned with the air inlet of the tray (102).

3. The inner and outer layer refrigeration freezer according to claim 1, characterized in that: The air duct component (201) is provided with a first mounting shell (2021) for mounting a plurality of axial flow fans (202). The left side of the first mounting shell (2021) is provided with an inclined surface so that the leftmost axial flow fan (202) is tilted to the left relative to the middle axial flow fan (202).

4. The inner and outer layer refrigeration freezer according to claim 1, characterized in that: The outer preservation container includes a material bucket (103) and / or a material tray (104); The tabletop (101) is also provided with a material bucket rim (105) and / or a material tray support (106), and a sealing strip is provided between the material bucket rim (105) and the tabletop (101), and a sealing strip is provided between the material tray support (106) and the tabletop (101).

5. The inner and outer layer refrigeration freezer according to claim 1, characterized in that: A seal is provided between the edge of the air outlet (2032) of the cross-flow fan (203) and the edge of the air inlet of the tray (102).

6. The inner and outer layer refrigeration freezer according to any one of claims 1 to 5, characterized in that: The evaporator (301) is located on the inner wall of the rear side of the housing (100).

7. The inner and outer layer refrigeration freezer according to claim 1, characterized in that: The box (100) includes an outer shell and an inner liner disposed within the outer shell, with a foam layer provided between the outer shell and the inner liner.

8. The inner and outer layer refrigeration freezer according to claim 1, characterized in that: The front of the box (100) is provided with a cabinet door (107), and a sealing strip is provided between the cabinet door (107) and the box (100). When the cabinet door (107) is closed, it contacts the box (100) through the sealing strip. The inside of the cabinet door (107) is provided with a foam layer.

9. The inner and outer layer refrigeration freezer according to claim 1, characterized in that: The lower part of the housing (100) is provided with support wheels (108).

10. The inner and outer layer refrigeration freezer according to claim 9, characterized in that: The support wheel (108) is equipped with a braking device.

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