Refrigerator with inner and outer layers

Abstract

The application discloses an inner-outer layer refrigeration freezer, which comprises a box body and a refrigeration module, and first air duct components and second air duct components are arranged on the two side walls of the inner cavity of the box body respectively; the refrigeration module comprises an evaporator; the lower part of the first air duct component is provided with a first air inlet facing the inner cavity of the box body, the evaporator is arranged in the air duct of the first air duct component, the upper part of the first air duct component is provided with an axial flow fan, and the axial flow fan is located above the side of the evaporator facing the inner cavity of the box body; the lower part of the second air duct component is provided with a second air outlet facing the inner cavity of the box body, and a cross flow fan is arranged in the air duct of the second air duct component, and the air outlet of the cross flow fan is aligned with the second air outlet. The inner-outer layer refrigeration freezer can make the inner-outer layer refrigeration areas to be reduced to the fresh-keeping temperature, and can preserve freshness and facilitate taking.

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 reduce the inner and outer refrigeration areas to the preservation temperature, which can both preserve food and make it easy to take out.

[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 and a refrigeration module, wherein a first air duct component and a second air duct component are respectively provided on the two side walls of the inner cavity of the cabinet, and the refrigeration module includes an evaporator;

[0007] The lower part of the first air duct component is provided with a first air inlet facing the inner cavity of the box. The evaporator is located in the air duct of the first air duct component. The upper part of the first air duct component is provided with an axial flow fan, which is located above the side of the evaporator facing the inner cavity of the box.

[0008] The lower part of the second air duct component is provided with a second air outlet facing the inner cavity of the box. A cross-flow fan is provided inside the air duct of the second air duct component, and the air outlet of the cross-flow fan is aligned with the second air outlet.

[0009] The cabinet has a tray on its surface for placing the outer preservation container. The tray is recessed into the cabinet. The air inlet of the tray is connected to the air outlet of the axial flow fan, and the air outlet of the tray is connected to the upper part of the second air duct component.

[0010] This technical solution provides an inner and outer layer refrigeration freezer that achieves stepped refrigeration through a cold air circulation path that first cools the outer layer and then the inner layer, so that the temperature of both the inner and outer layers is reduced to the preservation temperature. When in use, frequently used items can be placed in the outer refrigeration area, which can both preserve freshness and make them easy to access.

[0011] In a preferred technical solution, the refrigeration module also includes a compressor, a condenser, and a temperature controller. The temperature controller is used to control the compressor switch. The temperature sensor of the temperature controller is located in the inner cavity of the box. Since the inner cavity of the box is located at the end of the cold air circulation, the temperature of the inner cavity of the box is higher than the temperature of the outer preservation container area. Therefore, it is only necessary to set the temperature sensor in the inner cavity of the box for detection to achieve the cooling of both the inner and outer layers to the preservation temperature.

[0012] In a preferred embodiment, the compressor and the evaporator are located on the same side of the housing, and the evaporator is located inside the evaporator mounting cavity; the first air inlet communicates with the evaporator mounting cavity through an opening on the inner wall of the housing, so that air from the inner cavity of the housing can enter the evaporator.

[0013] In this technology, the evaporator is installed in an evaporator mounting cavity that communicates with the opening on the inner side wall of the cabinet, so that the evaporator can be on the same side as the compressor of the refrigeration module, which helps to save space inside the cabinet and allows the freezer to have a larger refrigeration capacity.

[0014] In a preferred embodiment, the compressor is located inside the compressor mounting cavity, and a heat insulation layer is provided between the evaporator mounting cavity and the compressor mounting cavity to isolate the evaporator from the high temperature of the compressor mounting cavity, thereby ensuring the cooling effect.

[0015] In a preferred embodiment, the upper part of the first air duct component is provided with multiple axial flow fans, and the total width of the multiple axial flow fans is greater than the width of the outer preservation area, so that the cold air circulation can obtain better flow rate uniformity, thereby obtaining a better cooling effect.

[0016] In a preferred embodiment, the outer preservation container includes a material bucket and / or a material tray;

[0017] The work surface is also equipped with a material bucket rim and / or a material tray support. There are seals between the material bucket rim and the material bucket and the work surface, and there are seals between the material tray support and the material tray and the work surface, which can form good airtightness and reduce the loss of cold energy.

[0018] 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.

[0019] In a preferred technical solution, the front of the cabinet is provided with a door, and the inside of the door is provided with a foam layer to serve as heat insulation; a sealing strip is provided between the door and the cabinet, and the door contacts the cabinet through the sealing strip when closed, so as to provide good sealing performance.

[0020] In a preferred embodiment, the lower part of the cabinet is provided with support wheels to allow the freezer to be moved.

[0021] 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.

[0022] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are: the inner and outer layer refrigeration freezer provided by this utility model, by setting a first air duct component and a second air duct component on both sides of the inner cavity of the cabinet respectively, can form a cold air circulation from the first air duct component, the tray, the second air duct component to the inner cavity of the cabinet, and guide the coldest airflow to the outer layer preservation container, thereby optimizing the temperature gradient of the inner and outer layer refrigeration areas, and enabling the inner and outer layers to drop to the food preservation temperature at the same time;

[0023] The outer preservation container, serving as the outer refrigeration zone, can preserve and store frequently used materials, while the inner cavity, serving as the inner refrigeration 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.

[0024] In addition, the tray is recessed into the inner cavity of the cabinet, resulting in better cooling performance.

[0025] 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

[0026] 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.

[0027] Figure 1This is a schematic diagram of the overall structure of the inner and outer layer refrigeration freezer of this utility model;

[0028] Figure 2 This is a front sectional view of the inner and outer layer refrigeration freezer of this utility model;

[0029] Figure 3 This is a side sectional view of the inner and outer layer refrigeration freezer of this utility model;

[0030] Figure 4 This is a cross-sectional view of the inner and outer layers of the freezer of this utility model from another side.

[0031] Figure 5 This is a schematic diagram of the cross-flow fan of this utility model;

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Cabinet; 101. First air duct component; 1010. First air inlet; 102. Second air duct component; 1020. Second air outlet; 103. Axial flow fan; 104. Cross-flow fan; 1041. Air inlet of cross-flow fan; 1042. Air outlet of cross-flow fan; 105. Tabletop; 106. Tray; 107. Material bucket; 1071. Material bucket rim; 108. Material tray; 1081. Material tray support; 109. Cabinet door; 110. Support wheels; 200. Refrigeration module; 201. Evaporator; 2011. Insulation layer. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] In one embodiment, such as Figure 1-5As shown, an inner and outer layer refrigeration freezer includes a cabinet 100 and a refrigeration module 200. A first air duct component 101 and a second air duct component 102 are respectively provided on the two side walls of the inner cavity of the cabinet 100. The refrigeration module 200 includes an evaporator 201.

[0037] The lower part of the first air duct component 101 is provided with a first air inlet 1010 facing the inner cavity of the housing 100. The evaporator 201 is located in the air duct of the first air duct component 101. The upper part of the first air duct component 101 is provided with an axial flow fan 103. The axial flow fan 103 is located above the side of the evaporator 201 facing the inner cavity of the housing 100.

[0038] The lower part of the second air duct component 102 is provided with a second air outlet 1020 facing the inner cavity of the box 100. A cross-flow fan 104 is provided in the air duct of the second air duct component 102, and the air outlet of the cross-flow fan 104 is aligned with the second air outlet 1020.

[0039] The countertop 105 of the cabinet 100 is provided with a tray 106 for placing the outer preservation container. The tray 106 is recessed into the cabinet 100. The air inlet of the tray 106 is connected to the air outlet of the axial flow fan 103, and the air outlet of the tray 106 is connected to the upper part of the second air duct component 102.

[0040] The first air inlet 1010 and the second air outlet 1020 may each include multiple through holes arranged in parallel. The air inlet of the tray 106 may be composed of multiple through holes opened on the side surface that connects with the axial flow fan 103. The axial flow fan 103 delivers cold air into the tray 106. The number of axial flow fans 103 is one or more, preferably multiple. In this case, the multiple axial flow fans 103 are arranged side by side in a horizontal direction. Figure 5 As shown, the air inlet 1041 and air outlet 1042 of the cross-flow fan 104 are both relatively long, thus having the advantages of large and uniform air volume, which can accelerate the removal of a large amount of cold air from the air duct of the second air duct component 102 and speed up the circulation and cooling of the cold air; preferably, the length of the air inlet and outlet of the cross-flow fan 104 is close to the length of the tray 106, so that the cold air flowing out of the tray 106 can be blown back into the inner cavity of the box 100 through the second air outlet 1020.

[0041] Specifically, the tabletop 105 has an opening area, and the tray 106 is embedded in the opening area and recessed into the inner cavity of the box 100. One side of the tray 106 has a through hole to allow cold air to enter, and the other side is connected to the second air duct component 102 to allow cold air to exit.

[0042] In specific implementation, such as Figure 2As shown by the middle arrow, when the freezer is turned on, the refrigeration module 200 starts, and the temperature of the evaporator 201 drops rapidly. The axial flow fan 103 draws hot air from the bottom of the cabinet 100 into the evaporator 201 through the first air duct component 101 to achieve heat exchange. The resulting cold air then flows through the axial flow fan 103 through the tray 106 to exchange heat with the outer preservation container. The cold air then enters the second air duct component 102 through the other end of the tray 106, and is then drawn in by the cross-flow fan 104 and blown into the cabinet 100. The hot air in the cabinet 100 is then drawn into the first air duct component 101, and this cycle repeats until the temperature in the middle of the cabinet 100 reaches the required preservation temperature. Because the cabinet 100 is located at the end of the cold air circulation, the temperature in the cabinet 100 is higher than the temperature of the outer preservation container area, thus achieving cooling of both the inner and outer layers to the preservation temperature.

[0043] The above embodiment provides an inner and outer layer refrigeration freezer. By setting a first air duct component 101 and a second air duct component 102 on both sides of the inner cavity of the cabinet 100, a cold air circulation can be formed from the first air duct component 101, the tray 106, the second air duct component 102 to the inner cavity of the cabinet 100. The coldest airflow is directed to the outer preservation container, thereby optimizing the temperature gradient between the inner and outer refrigeration areas and enabling both the inner and outer layers to reach the food preservation temperature simultaneously. The outer preservation container, as the outer refrigeration area, can preserve and store frequently used materials, while the inner cavity of the cabinet 100, as the inner refrigeration area, can store infrequently used materials. This eliminates the need for frequent material handling, thereby reducing the time spent manually handling materials and improving efficiency. In addition, the tray 106 is recessed into the inner cavity of the cabinet 100, resulting in better refrigeration effect.

[0044] In one embodiment, the refrigeration module 300 further includes a compressor (not shown in the figure), a condenser (not shown in the figure), and a temperature controller (not shown in the figure). The temperature controller is used to control the compressor switch. The temperature sensor of the temperature controller (not shown in the figure) is located in the inner cavity of the cabinet 100. Since the inner cavity of the cabinet 100 is located at the end of the cold air circulation, the temperature of the inner cavity of the cabinet 100 is higher than the temperature of the outer preservation container area. Therefore, it is only necessary to set the temperature sensor in the inner cavity of the cabinet 100 for detection to achieve the cooling of both the inner and outer layers to the preservation temperature.

[0045] The refrigeration module 200 includes a compressor, a condenser, a throttling device, and an evaporator 201 that are sequentially connected in a refrigerant pipeline (not shown in the figure). The refrigeration module 200 can adopt a refrigeration structure commonly used in the prior art, and its function and structure will not be described in detail here.

[0046] Preferably, the temperature sensor can be located in the middle of the bottom surface of the inner cavity of the box 100 to detect the temperature in the middle of the inner cavity of the box 100.

[0047] In one embodiment, the compressor and the evaporator 201 are located on the same side of the housing 100, and the evaporator 201 is located inside the evaporator mounting cavity; the first air inlet 1010 communicates with the evaporator mounting cavity through an opening on the inner wall of the housing 100, so that the air inside the housing 100 can enter the evaporator 201.

[0048] In this technology, the evaporator 201 is installed in the evaporator mounting cavity, which is connected to the opening in the inner side wall of the cabinet 100. This allows the evaporator 201 to be on the same side as the compressor of the refrigeration module 200, which helps to save space inside the cabinet 100 and allows the freezer to have a larger refrigeration capacity.

[0049] In one embodiment, the compressor is located inside the compressor mounting cavity, and a heat insulation layer 2011 is provided between the evaporator mounting cavity and the compressor mounting cavity to isolate it from the high temperature of the compressor mounting cavity, thereby ensuring the cooling effect.

[0050] In practice, the insulation layer 2011 can be made of foam or other insulation materials.

[0051] In one embodiment, the upper part of the first air duct component 101 is provided with a plurality of axial flow fans 103, the total width of the plurality of axial flow fans 103 being greater than the width of the outer preservation area, so that the cold air circulation obtains better flow rate uniformity, thereby obtaining a better cooling effect.

[0052] The outer preservation area is the area occupied by the outer preservation container, and the number of axial flow fans 103 can be 2 to 5, preferably 4.

[0053] In practice, the total width of the multiple axial flow fans 103 is close to the width of the cross flow fan 104, which can further improve the uniformity of the airflow velocity.

[0054] In one embodiment, the outer preservation container includes a material bucket 107 and / or a material tray 108;

[0055] The table 105 is also provided with a material bucket rim 1071 and / or a material tray support 1081. The material bucket rim 1071 is provided with a seal between the material bucket 107 and the table 105, and the material tray support 1081 is provided with a seal between the material tray 108 and the table 105, which can form good airtightness and reduce the loss of cold energy.

[0056] The freezer can be equipped with multiple material bins 107 and multiple material trays 108 to hold different types of materials; the material bin rim 1071 is used to hold multiple material bins 107, and the material tray support 1081 is used to hold multiple material trays 108; in specific implementation, the sealing element can be a silicone sealant, a rubber sealant, other plastic parts or glass glue, etc.

[0057] 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.

[0058] In one embodiment, the front of the enclosure 100 is provided with a cabinet door 109, and the inside of the cabinet door 109 is provided with a foam layer to serve as heat insulation; a sealing strip is provided between the cabinet door 109 and the enclosure 100, and the cabinet door 109 contacts the enclosure 100 through the sealing strip when closed, so the sealing performance is good.

[0059] The cabinet door 109 can be a single door or a double door that opens to the left and right.

[0060] In one embodiment, the lower part of the cabinet 100 is provided with support wheels 110, which allows the refrigeration freezer to be moved.

[0061] In one embodiment, the support wheel 110 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.

[0062] Based on the above embodiments, the working principle of the above inner and outer layer refrigeration freezer is as follows: The above inner and outer layer refrigeration freezer can increase the refrigeration volume of the freezer without changing its shape by using the evaporator 201 installed on the side of the cabinet 100. The hot air at the bottom of the inner cavity of the cabinet 100 is blown by the axial flow fan 103 through the first air duct component 101 and the evaporator 201 to the outer refrigeration area where the material bucket 107 and the material tray 108 are placed. In order to prevent the cold air from sinking into the inner cavity of the cabinet 100 and being sucked into the evaporator 201 for heat exchange, resulting in a short circuit, a tray 106 is provided at the bottom of the outer refrigeration area to separate the inner and outer layers, so that the blown cold air can only flow to the other side along the tray 106. At the same time, the second air duct component 102 accelerates the cold air to the middle of the inner cavity of the cabinet 100 through the cross flow fan 104, forming a cold air circulation.

[0063] The entire cold air circulation places the inner cavity of the cabinet 100, which serves as the inner refrigeration zone, at the end of the circulation, and the material hopper 107 and material tray 108, which serve as the outer refrigeration zone, at the beginning. The highest temperature section in the circulation is set in the inner refrigeration zone, and the temperature sensor that controls the start and stop of the compressor is set at the bottom of the inner cavity of the cabinet 100. When the temperature detected by the temperature sensor drops to the preset preservation temperature, both the inner and outer refrigeration zones of the freezer are cooled down to below the preservation temperature, thus achieving inner and outer refrigeration.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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. An inside-outside refrigerated freezer characterized by: It includes a housing (100) and a refrigeration module (200). The housing (100) has a first air duct component (101) and a second air duct component (102) respectively on the two side walls of the inner cavity. The refrigeration module (200) includes an evaporator (201). The lower part of the first air duct component (101) is provided with a first air inlet (1010) facing the inner cavity of the housing (100). The evaporator (201) is located in the air duct of the first air duct component (101). The upper part of the first air duct component (101) is provided with an axial flow fan (103). The axial flow fan (103) is located above the side of the evaporator (201) facing the inner cavity of the housing (100). The lower part of the second air duct component (102) is provided with a second air outlet (1020) facing the inner cavity of the box (100), and a cross-flow fan (104) is provided in the air duct of the second air duct component (102), with the air outlet of the cross-flow fan (104) aligned with the second air outlet (1020). The countertop (105) of the box body (100) is provided with a tray (106) for placing the outer preservation container. The tray (106) is recessed into the box body (100). The air inlet of the tray (106) is connected to the air outlet of the axial flow fan (103), and the air outlet of the tray (106) is connected to the upper part of the second air duct component (102).

2. The inside-out refrigerator ice chest of claim 1, wherein: The refrigeration module (200) also includes a compressor, a condenser and a temperature controller. The temperature controller is used to control the compressor switch. The temperature sensor of the temperature controller is located in the inner cavity of the housing (100).

3. The inside-out refrigerator ice chest of claim 2, wherein: The compressor and the evaporator (201) are located on the same side of the housing (100), and the evaporator (201) is located inside the evaporator mounting cavity; the first air inlet (1010) communicates with the evaporator mounting cavity through an opening on the inner wall of the housing (100).

4. The inside-out refrigerator ice chest of claim 3, wherein: The compressor is located inside the compressor mounting cavity, and a heat insulation layer (2011) is provided between the evaporator mounting cavity and the compressor mounting cavity.

5. The inside and outside layer refrigeration ice cabinet according to claim 1, characterized in that: The upper part of the first air duct component (101) is provided with a plurality of axial flow fans (103), and the total width of the plurality of axial flow fans (103) is greater than the width of the outer preservation area.

6. The inside-out freezer of any one of claims 1 to 5, wherein: The outer preservation container includes a material bucket (107) and / or a material tray (108); The platform (105) is also provided with a material bucket rim (1071) and / or a material tray support (1081). The material bucket rim (1071) is provided with a sealing element between itself and the material bucket (107) and the platform (105). The material tray support (1081) is provided with a sealing element between itself and the material tray (108) and the platform (105).

7. The inside and outside layer refrigeration ice cabinet 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 inside and outside layer refrigeration ice cabinet according to claim 1, characterized in that: The front of the box (100) is provided with a cabinet door (109), and the inside of the cabinet door (109) is provided with a foam layer; a sealing strip is provided between the cabinet door (109) and the box (100).

9. The inside and outside layer refrigeration ice cabinet according to claim 1, characterized in that: The lower part of the box (100) is provided with support wheels (110).

10. The inside-out refrigerator ice chest of claim 9, wherein: The support wheels (110) are provided with brake devices.

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