Inner container and refrigeration equipment with same

Abstract

An inner container and a refrigeration equipment with the same. The inner container comprises a first inner container, a second inner container and a third inner container which are arranged to form a refrigeration chamber, the third inner container is connected with the first inner container and the second inner container in the middle of the refrigeration chamber, and the third inner container is provided with a plug-in structure for plug-in cooperation with a cold supply assembly. The first inner container, the second inner container and the third inner container are spliced to form the completed inner container, and the complex structure for plug-in cooperation with the cold supply assembly is arranged on the third inner container, so that the design and manufacturing are facilitated. The first inner container and the second inner container do not need to be prepared with the plug-in structure of the cold supply assembly, are not restricted by the process of forming the plug-in structure, and can expand the material selection range according to the requirements of uniform temperature, structural strength, aesthetics, simple process and the like.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, and in particular to an inner liner and a refrigeration device having the same. Background Technology

[0002] Refrigeration equipment can provide refrigeration, freezing and other preservation environments, extending the shelf life of food and beverages, and has a wide range of applications in commercial and household fields.

[0003] With the improvement of living standards, users have increasingly higher demands for multi-temperature zone refrigeration equipment. Multi-temperature zone equipment is usually divided into multiple refrigeration compartments by a partition, and multiple refrigeration compartments are provided with cooling capacity by one or more refrigeration systems. In related technologies, the partition and the inner liner are usually set as one piece, which is complex in molding process and not conducive to the installation of other functional structures in the partition.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application and does not constitute information on prior art known to those skilled in the art.

[0005] In view of this, it is necessary to provide an improved inner liner and a refrigeration device having the same, in order to solve the above-mentioned technical problems. Utility Model Content

[0006] To achieve the above objectives, this utility model provides a refrigeration device.

[0007] An inner liner includes a first inner liner, a second inner liner, and a third inner liner that surround and form a refrigeration chamber. The third inner liner connects the first inner liner and the second inner liner at the middle of the refrigeration chamber, and the third inner liner is provided with a plug-in structure for plugging and engaging with a cooling assembly.

[0008] In some embodiments, one of the third inner liner and the first inner liner is provided with a first insertion slot, and the other is provided with a first insertion piece that mates with the first insertion slot.

[0009] In some embodiments, after the third inner liner is spliced ​​with the first inner liner, the inner wall surface of the third inner liner is parallel to the inner wall surface of the first inner liner.

[0010] In some embodiments, one of the third inner liner and the second inner liner is provided with a second insertion slot, and the other is provided with a second insertion piece that mates with the second insertion slot.

[0011] In some embodiments, after the third inner liner is spliced ​​with the second inner liner, the inner wall surface of the third inner liner is parallel to the inner wall surface of the second inner liner.

[0012] In some embodiments, the third inner liner is provided with a first insertion groove on the side facing the first inner liner, and the first inner liner is provided with a first insertion piece that mates with the first insertion groove.

[0013] And / or, the third inner liner is provided with a second insertion groove on the side facing the second inner liner, and the second inner liner is provided with a second insertion piece that mates with the second insertion groove.

[0014] In some embodiments, the third inner liner has a first folded edge extending away from the refrigeration compartment on the side facing the first inner liner, and a second folded edge extending towards the first inner liner from the side of the first folded edge away from the third inner liner. The third inner liner, the first folded edge, and the second folded edge surround to form the first insertion groove. The first inner liner has a third folded edge extending away from the refrigeration compartment at one end facing the third inner liner, and the first insertion piece extends from the end of the third folded edge away from the refrigeration compartment toward the direction where the third inner liner is located.

[0015] In some embodiments, the third inner liner has a fourth folded edge extending away from the refrigeration compartment on the side facing the second inner liner, and a fifth folded edge extending towards the second inner liner from the side of the fourth folded edge away from the third inner liner. The third inner liner, the fourth folded edge, and the fifth folded edge surround to form the second insertion groove. The second inner liner has a sixth folded edge extending away from the refrigeration compartment at one end facing the third inner liner, and the second insertion piece extends towards the third inner liner from the end of the sixth folded edge away from the refrigeration compartment.

[0016] In some embodiments, the first inner liner includes a first bottom wall and a first side wall; the second inner liner includes a second bottom wall and a second side wall; the third inner liner includes a third bottom wall and a third side wall; the first inner liner, the third inner liner, and the second inner liner surround to form the upward-opening refrigeration chamber, wherein in the opening direction, the height of the first side wall is greater than the height of the second side wall, and the height of the second side wall is less than the height of the third side wall.

[0017] In some embodiments, the bottom of the third inner liner is provided with a drain hole, which is located at the bottom end of the third bottom wall.

[0018] In some embodiments, the cooling assembly divides the cooling chamber into a first chamber and a second chamber;

[0019] The cooling assembly includes a housing, an evaporator cavity located within the housing, an evaporator located within the evaporator cavity, a fan cavity located above and connected to the evaporator cavity, a fan located within the fan cavity, a first air duct connecting the fan cavity and the first compartment, and a second air duct connecting the fan cavity and the second compartment.

[0020] And / or, the cooling assembly is provided with a first air outlet for supplying cold air to the first room, a first return air outlet for returning air from the first room to the cooling assembly, a second air outlet for supplying cold air to the second room, and a second return air outlet for returning air from the second room to the cooling assembly.

[0021] A refrigeration device includes: an inner liner as described above; and a cooling assembly, wherein the cooling assembly is inserted into and cooperates with the third inner liner.

[0022] The beneficial effects of this utility model are as follows: This utility model splices together a first inner liner, a second inner liner, and a third inner liner to form a complete inner liner, and centrally sets the complex structure for interlocking with the cooling component on the third inner liner, which facilitates design and manufacturing. The first and second inner liners do not require the fabrication of interlocking structures with the cooling component, are not constrained by the process of forming such structures, and can expand the range of material selection based on requirements such as temperature uniformity, structural strength, aesthetics, and process simplicity. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the refrigeration equipment in one embodiment of the present invention.

[0025] Figure 2 for Figure 1 A diagram showing the product after part of the outer shell has been removed.

[0026] Figure 3 This is a schematic diagram showing the assembly of the inner liner, cooling components, compressor compartment, and wiring terminals in a refrigeration device according to this utility model.

[0027] Figure 4 for Figure 2 A schematic diagram showing the connection between the inner liner and the cooling system.

[0028] Figure 5 for Figure 4 The exploded diagram.

[0029] Figure 6 for Figure 4 A decomposition diagram of another state.

[0030] Figure 7 for Figure 4 A schematic diagram of the inner liner.

[0031] Figure 8 for Figure 7 A diagram from another angle.

[0032] Figure 9 for Figure 6 A schematic diagram of the central cooling unit.

[0033] Figure 10 for Figure 6 A schematic diagram showing the connection between the central cooling unit and the first cooling plate.

[0034] Figure 11 A schematic diagram of removing the first cover plate for the cooling components.

[0035] Figure 12 A schematic diagram showing the removal of the entire cover plate for the cooling components.

[0036] Figure 13 for Figure 12 A schematic diagram of the stroke pathway.

[0037] Figure 14 This is an exploded view of the first and second air duct plates of this utility model.

[0038] Figure 15 This is a schematic diagram of the first air duct plate of this utility model.

[0039] Figure 16 This is a schematic diagram of the second air duct plate of this utility model.

[0040] Figure 17 This is a schematic diagram of the refrigeration device after part of its outer shell has been removed in another embodiment of the present invention.

[0041] Figure 18 for Figure 17 A schematic diagram showing the connection between the inner liner and the cooling system.

[0042] Figure 19 for Figure 18 The exploded diagram.

[0043] Figure 20 for Figure 18 A sectional view.

[0044] Figure 21 for Figure 20 Enlarged view of part A in the middle.

[0045] Figure 22 for Figure 19 A schematic diagram showing the connection between the central cooling unit and the first cooling plate.

[0046] Figure 23 for Figure 22 Exploded view of the central cooling unit.

[0047] Figure 24 This is a schematic diagram of the assembly of the inner liner and the cooling component in another embodiment of the present invention.

[0048] Figure 25 for Figure 24 A diagram from another angle.

[0049] Figure 26 for Figure 24 A diagram illustrating the removal of the cooling system components.

[0050] Figure 27 for Figure 26 A schematic diagram of the central cooling unit from another angle.

[0051] Figure 28 for Figure 26 A schematic diagram of the central cooling unit from another angle.

[0052] Figure 29 for Figure 26 A schematic diagram of the inner liner from another angle.

[0053] Figure 30 for Figure 29 A sectional view.

[0054] Figure 31 This is a schematic diagram showing the assembly of the refrigeration equipment housing and the cooling components in another embodiment of the present invention.

[0055] Figure 32 for Figure 31 A schematic diagram showing the assembly of the inner liner, cooling components, compressor compartment, and wiring terminals.

[0056] Figure 33 for Figure 32 A diagram from another angle.

[0057] Figure 34 for Figure 33 The exploded diagram.

[0058] Figure 35 for Figure 34 A schematic diagram of the third inner liner.

[0059] Figure 36 for Figure 34 A magnified view of a section at point B in the middle.

[0060] Figure 37 for Figure 34 A magnified view of a section at point C.

[0061] Figure 38 for Figure 34 A magnified view of a section at point D.

[0062] Figure 39 for Figure 34 A magnified view of a section at point E in the middle.

[0063] in, Figure 23 , Figure 27 , Figure 34 Internal air ducts and Figures 13 to 16 The air duct structure is the same as that in other systems, so it will not be illustrated again here. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0065] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0066] In the description of this utility model, it should be understood that the terms indicating 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 are not intended to 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 of this utility model.

[0067] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0068] Please see Figures 1 to 39 The image shows a preferred embodiment of the refrigeration equipment 100 of this utility model. The refrigeration equipment 100 includes a housing 10, a door 40, a refrigeration system, and a cooling assembly 20. The housing 10 defines a refrigeration chamber 30, and the door 40 is used to open or close the refrigeration chamber 30 for easy access to items. The cooling assembly 20 transfers the cooling energy generated by the refrigeration system during operation to the refrigeration chamber 30 to create a low-temperature storage environment.

[0069] The enclosure 10 includes an outer shell 11, an inner liner 12, and an insulation layer (not shown) located between the outer shell 11 and the inner liner 12.

[0070] The outer casing 11 is used to construct the shape of the refrigeration device 100, and is usually made of plastic or sheet metal.

[0071] The inner liner 12 has an opening for enclosing and forming a refrigeration compartment 30. The material of the inner liner 12 includes, but is not limited to, metal sheets or plastic sheets.

[0072] The insulation layer can be made of any type of insulation material, as long as the enclosure 10 has a certain insulation performance. For example, the insulation layer can be one or more of the following: a foam layer or a vacuum insulation panel.

[0073] In some implementations, the insulation layer includes a foam layer and a vacuum insulation panel. The combination of a low-cost foam layer and a high-insulation vacuum insulation panel can balance insulation performance and manufacturing cost.

[0074] Whether the vacuum insulation panel is located between the foam layer and the inner liner 12, or between the foam layer and the outer shell 11, or embedded in the foam layer, it can achieve excellent thermal insulation performance.

[0075] The refrigeration system is a vapor compression refrigeration system, including a compressor, a condenser, a throttling element, and an evaporator 23. The refrigeration system utilizes the phase change process of the refrigerant absorbing heat and evaporating in the evaporator 23, and releasing heat and condensing in the condenser to achieve refrigeration.

[0076] The compressor and condenser are located in the compressor compartment 50, while the throttling element and evaporator 23 are located in the cooling assembly 20. The cold and hot components are separated, resulting in high refrigeration efficiency and convenient installation.

[0077] The compressor compartment 50 is also equipped with a drip tray 51 for evaporating condensate. The drip tray 51 may be positioned in several ways, including but not limited to: the drip tray 51 is located above the compressor; the drip tray 51 is located below the condenser; or the condenser is located inside the drip tray 51. The drip tray 51 receives heat from the compressor and / or the condenser, which can increase the evaporation rate of the water.

[0078] This utility model adopts a modular design for the cooling component 20 and designs the cooling component 20 to be detachably assembled inside the inner liner 12, which can simplify the design of the cooling component 20, the housing 10, and especially the inner liner 12, and reduce costs.

[0079] The cooling unit 20 is installed inside the inner liner 12 and can also serve as the partition of the cooling chamber 30, dividing the cooling chamber 30 into a first chamber 31 and a second chamber 32 located on both sides of the cooling unit 20.

[0080] The first compartment 31 and the second compartment 32 can be set as two refrigeration compartments 30 with the same temperature, allowing users to store different items separately and prevent odor mixing. Alternatively, the first compartment 31 and the second compartment 32 can be set as two refrigeration compartments 30 with different temperatures, thus forming a dual-temperature zone, allowing users to store items according to their desired storage temperature. In some embodiments, the set temperature of the first compartment 31 is lower than the set temperature of the second compartment 32. For example, the first compartment 31 is a freezer compartment, and the second compartment 32 is a refrigerator compartment.

[0081] For ease of description, the direction from the opening into the interior of the refrigeration chamber 30 is defined as the opening direction; taking an opening located at the top of the refrigeration chamber 30 and opening upwards as an example, the opening direction is either the vertical direction or the height direction. The arrangement direction of the first chamber 31 and the second chamber 32 is defined as the first direction, and the direction perpendicular to both the opening direction and the first direction is defined as the second direction.

[0082] This utility model uses a horizontal freezer as an example to describe the refrigeration equipment 100 of this utility model in detail. The openings of the refrigeration compartment 30, the first compartment 31, and the second compartment 32 all open upwards, and the opening direction is vertical. Both the first direction and the second direction extend horizontally. In one embodiment, the first direction is the length direction of the horizontal freezer, and the second direction is the width direction of the horizontal freezer.

[0083] The following section will focus on describing the structure of the inner liner 12 and the cooling assembly 20, as well as their assembly method. The structure and assembly method of any cooling assembly 20 are applicable to either an integrated inner liner or a modular inner liner.

[0084] The cooling assembly 20 includes a housing 21, an evaporator cavity 22 located within the housing 21, an evaporator 23 located within the evaporator cavity 22, a fan cavity 24 located above and connected to the evaporator cavity 22, a fan 25 located within the fan cavity 24, a first air duct 26 connecting the fan cavity 24 and the first chamber 31, and a second air duct 27 connecting the fan cavity 24 and the second chamber 32.

[0085] Driven by the fan 25, the cold air in the evaporator chamber 22 flows into the fan chamber 24, and then flows into the first chamber 31 through the first air duct 26 and into the second chamber 32 through the second air duct 27, thereby achieving cooling for the first chamber 31 and the second chamber 32.

[0086] The first air duct 26 and the second air duct 27 are arranged at intervals along the arrangement direction of the first compartment 31 and the second compartment 32, that is, the first air duct 26 and the second air duct 27 are arranged at intervals along the first direction, so that the first air duct 26 and the second air duct 27 are independent of each other and do not affect each other, so as to supply cooling to the two compartments respectively.

[0087] The first air duct 26 and the second air duct 27 are respectively located on both sides of the fan cavity 24 along the thickness direction of the cooling assembly 20 (the arrangement direction of the first compartment 31 and the second compartment 32). The first air duct 26 and the second air duct 27 are not coplanar, which can effectively prevent the first air duct 26 and the second air duct 27 from interfering with each other, and the first air duct 26 and the second air duct 27 can extend in any direction within their respective planes to provide cooling to the corresponding compartments.

[0088] The cooling assembly 20 also includes a cover plate 28 connected to the side of the housing 21 facing the first compartment 31, a first air duct plate 29 located inside the housing 21, and a second air duct plate 210 connected to the side of the first air duct plate 29 facing away from the cover plate 28. The first air duct 26 is located between the cover plate 28 and the first air duct plate 29, and the second air duct 27 is located between the first air duct plate 29 and the second air duct plate 210.

[0089] The cover plate 28 is provided with a number of first air outlets 28a that connect the first air duct 26 and the first chamber 31. The cold air in the first air duct 26 enters the first chamber through the first air outlets 28a.

[0090] The first air duct 26 has a first air inlet 26a connected to the fan chamber 24 and a first branch channel 26b extending upward from the first air inlet 26a. The cold air from the fan chamber 24 enters the first branch channel 26b through the first air inlet 26a, and then enters the first compartment 31 through the first air outlet 28a connected to the first branch channel 26b.

[0091] The first diversion channel 26b extends upward, allowing the cold air in the first diversion channel 26b to enter the top of the first chamber 31. The cold air naturally sinks, thus forming a top-to-bottom airflow in the first chamber 31, preventing hot air from accumulating at the top of the first chamber 31 and improving the temperature uniformity in the first chamber 31.

[0092] The cross-sectional area of ​​the first diversion channel 26b gradually increases from the first air inlet 26a away from it. This reduces the airflow velocity of the cold air entering the first diversion channel 26b from the first air inlet 26a, allowing the cold air to smoothly enter the first chamber 31 via the first air outlet 28a, preventing obstructed airflow or noise at the first air outlet 28a. Furthermore, it allows for an adaptive increase in the cross-sectional area of ​​the first air outlet 28a connected to the first diversion channel 26b, thereby increasing the airflow volume. In this invention, the cross-sectional area refers to the area perpendicular to the direction of cold air flow.

[0093] The first air duct 26 also includes a second branch duct 26c located on both sides of the first branch duct 26b. The second branch duct 26c includes a branch section 26c-1 connected to the first air inlet 26a and a diffuser section 26c-2 connected to the branch section 26c-1. 15

[0094] The second diversion channel 26c is located on both sides of the first diversion channel 26b along the second direction. The cold air at the first air inlet 26a is diverted and guided through the diversion section 26c-1, and then flows into the corresponding diffuser section 26c-2. It then enters the first chamber 31 through the first air outlet 28a connected to the diffuser section 26c-2.

[0095] By adding a second distribution channel 26c, the air intake of the first chamber 31 can be increased, thereby improving the cooling efficiency. Secondly, the first distribution channel 26b supplies cooling to the top of the first chamber 31, and the second distribution channel 26c supplies cooling to the middle of the first chamber 31, which can improve the temperature uniformity within the first chamber 31.

[0096] The cross-sectional area of ​​the diffuser section 26c-2 is larger than that of the diversion section 26c-1, and the diffuser section 26c-2 extends along the height direction of the cooling component 20.

[0097] The diversion section 26c-1 serves to divert and guide the airflow, directing the cold air from the first air inlet 26a into the corresponding diffuser section 26c-2. The diversion section 26c-1 has a small cross-sectional area and a high cold air velocity, allowing the cold air to be introduced into the diffuser section 26c-2 at a higher velocity and diffused within it. The diffuser section 26c-2 extends along the height of the cooling assembly 20, enabling the cold air flowing into it at a high velocity to reach the bottom of the diffuser section 26c-2 and fill the entire section.

[0098] Correspondingly, the cover plate 28 has multiple first air inlets 26a that are connected to the diffuser section 26c-2 at intervals along the height direction, so that the cold air in the diffuser section 26c-2 flows into different positions of the first chamber 31, thereby improving the temperature uniformity in the first chamber 31.

[0099] Considering that the first air outlet 28a is far from the end of the first chamber 31 furthest from the cooling component 20, it may cause uneven temperature distribution within the first chamber 31. Therefore, the first air duct 26 supplies cooling to the first chamber 31 through a first extended air duct located within the first chamber 31 and extending along a first direction.

[0100] Specifically, the inner wall of the first chamber 31 is provided with a first air guide trough 31a extending in a first direction. The cooling assembly 20 also includes a first cooling plate 212 located on its side along a second direction. The first cooling plate 212 is located on the side where the first air duct 26 is located and extends in the first direction. The first cooling plate 212 is engaged in the first air guide trough 31a, thereby sealing the first air duct trough 31 to form a first extended air duct.

[0101] The diffuser section 26c-2 has a connecting port on its side to connect with the first extended air duct. The first cooling plate 212 has multiple air outlets 2121 spaced apart along the first direction, thereby supplying the cold air in the first air duct 26 to different positions in the first chamber 31, thereby improving the temperature uniformity in the first chamber 31.

[0102] The first air outlet 28a and the first extended air duct can be used either one or both to provide cooling for the first room 31.

[0103] The cover plate 28 is also provided with a first return air inlet 28b that connects the evaporator cavity 22 and the first chamber 31. The air in the first chamber 31 flows into the evaporator cavity 22 through the first return air inlet 28b and exchanges heat with the evaporator 23 in the evaporator cavity 22 to cool down, and then re-enters the first chamber 31 through the first air duct 26.

[0104] The second air duct 27 has a second air inlet 27a that communicates with the fan cavity 24, and the cross-sectional area of ​​the second air inlet 27a is smaller than the cross-sectional area of ​​the first air inlet 26a.

[0105] Since the first compartment 31 is a freezer compartment and the second compartment 32 is a refrigerator compartment, the cooling capacity required for the first compartment 31 is greater than that required for the second compartment 32. Therefore, the cross-sectional area of ​​the second air inlet 27a is smaller than that of the first air inlet 26a, which allows more cold air in the fan cavity 24 to enter the first air duct 26 and then flow into the first compartment 31.

[0106] The second air inlet 27a is located below the first air inlet 26a. The second air inlet 27a is located inside one of the second diversion channels 26c. The first air inlet 26a and the second air inlet 27a have an included angle, that is, the first air inlet 26a and the second air inlet 27a are arranged at intervals along the circumferential direction of the fan cavity 27.

[0107] Understandably, under the centrifugal force of the fan 25, the cold air in the fan cavity 24 flows outward along the tangential direction of the fan 25 impeller. The orientations of the first air inlet 26a and the second air inlet 27a are different, corresponding to the tangential directions of two different positions of the fan 25 impeller. Thus, the cold air in the fan cavity 27 is diverted through the first air inlet 26a and the second air inlet 27a and flows into the first air duct 26 and the second air duct 27.

[0108] The second air duct 27 includes an air inlet section 27b connected to the second air inlet 27a, an air outlet section 27c connected to the second chamber 32, an intermediate section 27d connecting the air inlet section 27b and the air outlet section 27c, and an air damper 27e located in the intermediate section 27d.

[0109] The housing 21 is provided with a second air outlet 21c, and the air outlet section 27c is connected to the second chamber 32 through the second air outlet 21c. The cold air in the fan chamber 27 enters the air inlet section 27b from the second air inlet 27a, then flows through the middle section 27d and the air outlet section 27c in sequence, and finally enters the second chamber 32 through the second air outlet 21c.

[0110] The damper 27e, located in the intermediate section 27d, is used to open and close the second air duct 27. To prevent the temperature inside the second chamber 32 from becoming too low, the damper 27 can be controlled to open and close the second air duct 27 by monitoring the temperature inside the second chamber 32. When the temperature inside the second chamber 32 is lower than a preset value, the damper 27 is controlled to close the second air duct 27, stopping the supply of cooling to the second chamber 32; when the temperature inside the second chamber 32 is higher than the preset value, the damper 27 is controlled to open the second air duct 27 to supply cooling to the second chamber 32.

[0111] From the second air inlet 27a to the middle section 27d, the air inlet section 27b extends obliquely towards the second chamber 32. Due to the arrangement of the second air inlet 27a, the first air duct plate 29 is relatively thin at the location of the second air inlet 27a. By obliquely setting the air inlet section 27b, the thickness of the first air duct plate 29 gradually increases along the air inlet direction of the air inlet section 27b, thereby improving the strength and heat insulation effect of the first air duct plate 29. At the same time, it also increases the spacing between the first air duct 26 and the second air duct 27 along the thickness direction of the cooling component 20, thereby preventing heat conduction within the first air duct 26 and the second air duct 27.

[0112] The housing 21 is also provided with a second return air inlet 21d that connects the evaporator chamber 22 and the second chamber 32. The air in the second chamber 32 flows into the evaporator chamber 22 through the second return air inlet 21d and exchanges heat with the evaporator 23 in the evaporator chamber 22 to cool down. Then it re-enters the second chamber 32 through the second air duct 27.

[0113] The first air duct plate 29 is located above the evaporator 23. There is an assembly groove 29a at the middle of the bottom of the first air duct plate 29, and the fan 25 is installed in the assembly groove 29a.

[0114] A first air duct plate 29 has a first air duct groove 29b on the side facing the second air duct plate 210, and a second air duct groove adapted to the air duct groove 29b is similarly provided on the side facing the first air duct plate 29. The first air duct groove 29b and the second air duct groove together form a second air duct 27. The end of the first air duct groove 29b that is connected to the assembly groove 29a is the second air inlet 27a.

[0115] The second air duct plate 210 includes an upper half 210a and a lower half 210b. The first air duct plate 29 is located on the side of the upper half 210a facing the cover plate 28, that is, the second air duct 27 is located between the upper half 210a and the first air duct plate 29. The evaporator cavity 22 is located between the lower half 210b and the cover plate 28. The thickness of the upper half 210a is greater than the thickness of the lower half 210b. The greater thickness of the upper half 210a is to accommodate the second air duct groove, while the smaller thickness of the lower half 210b is to maintain sufficient distance between it and the cover plate 28 for mounting the evaporator 23.

[0116] By setting the second air duct plate 210, a double-layer air duct design can be achieved. The first air duct 26 and the second air duct 27 are spaced apart along the thickness direction of the cooling component 20, so that the first air duct 26 and the second air duct 27 are independent of each other and do not affect each other. On the other hand, the second air duct plate 210 can effectively isolate heat conduction between the first compartment 31 and the second compartment 32, thereby preventing the cold air in the first compartment 31 from being conducted to the second compartment 32 and causing the temperature of the second compartment 32 to be too low.

[0117] By placing the evaporator 23 on the side of the lower half 210b facing the first chamber 31, it is possible to effectively prevent the cold energy in the evaporator cavity 22 from being conducted to the first chamber 31, which would cause the temperature of the second chamber 32 to be too low.

[0118] The inner liner 12 includes a bottom wall 1201 and a side wall 1202. The side wall 1202 is connected to the outer periphery of the bottom wall 1201 and extends from the bottom wall 1201 toward the opening. The dimension of the side wall 1202 in the opening direction determines the depth dimension of the refrigeration compartment 30.

[0119] The bottom wall 1201 is designed in a stepped shape, which facilitates the assembly with the refrigeration system and cooling components 20, and achieves the sealing of the two compartments to prevent cold leakage and odor transfer.

[0120] In some embodiments, the bottom wall 1201 includes a first bottom wall 1211 located at the bottom of the first compartment 31, a second bottom wall 1221 located at the bottom of the second compartment 32, and a third bottom wall 1231 located below the cooling assembly 20. The first bottom wall 1211 is lower than the third bottom wall 1231, and a step is formed between the two.

[0121] The third bottom wall 1231 is lower than the second bottom wall 1221, forming a step between them. The double-step design facilitates the assembly of the cooling components 20 and also helps to seal the two compartments.

[0122] In one embodiment, the height difference between the first bottom wall 1211 and the third bottom wall 1231 is H1, and the height difference between the third bottom wall 1231 and the second bottom wall 1221 is H2. The height difference H1 is less than the height difference H2, which not only optimizes the volume ratio of the first compartment 31 and the second compartment 32, making it easier for users to store items in separate areas, but also facilitates the assembly of the cooling component 20 and the refrigeration system.

[0123] The compressor chamber 50 is located below the second compartment 32, that is, below the second bottom wall 1221. The third bottom wall 1231 is provided with a drain hole 1233 for draining water into the compressor chamber 50.

[0124] Specifically, this utility model connects the drain hole 1233 and the water receiving tray 51 through the drain pipe 53, so as to discharge the condensate into the water receiving tray 51 to accelerate the evaporation rate.

[0125] In some embodiments, the drain hole 1233 is located at the lowest point of the third bottom wall 1231, which facilitates the collection and drainage of condensate dripping from the self-cooling component 20.

[0126] In some embodiments, the drain hole 1233 is located on the side of the third bottom wall 1231 facing the second compartment 32 or the compressor chamber 50. The drain hole 1233 is close to the compressor chamber 50, which facilitates drainage and can also reduce the design difficulty and length of the drain pipe 53.

[0127] Based on the above-mentioned design, in some embodiments, the inner liner 12 is a one-piece design. Specifically, the first bottom wall 1211, the third bottom wall 1231, and the second bottom wall 1221 are integrally formed.

[0128] Based on the above design, in some other embodiments, the inner liner 12 is a spliced ​​design.

[0129] The inner liner 12 includes a first inner liner 121, a second inner liner 122, and a third inner liner 123 that surround and form a cooling chamber 30. The third inner liner 123 connects the first inner liner 121 and the second inner liner 122 at the middle of the cooling chamber 30, and the third inner liner 123 is provided with a plug-in structure for plugging and engaging with the cooling assembly 20.

[0130] This design simplifies the overall design of the inner liner 12. The complex structure that connects to the cooling component 20 is centrally located on the third inner liner 123, facilitating design and manufacturing. The first inner liner 121 and the second inner liner 122 do not require the fabrication of a connection structure with the cooling component 20, and are not constrained by the process of forming the connection structure. This allows for a wider range of material choices based on requirements such as temperature uniformity, structural strength, aesthetics, and process simplicity.

[0131] One of the third inner liner 123 and the first inner liner 121 is provided with a first insertion slot 124, and the other is provided with a first insertion piece 125 that mates with the first insertion slot 124. The assembly of the third inner liner 123 and the first inner liner 121 can be completed simply by inserting the first insertion piece 125 into the first insertion slot 124, which is simple and convenient.

[0132] In one embodiment, the first insertion slot 124 has a relatively complex structure and is disposed on the third inner liner 123. The first insertion piece 125 has a relatively simple structure and is disposed on the first inner liner 121.

[0133] Specifically, the third inner liner 123 has a first insertion groove 124 on the side facing the first inner liner 121, and the first inner liner 121 has a first insertion piece 125 that mates with the first insertion groove 124. The first insertion piece 125 is inserted into the first insertion groove 124 along a first direction, making assembly simple.

[0134] The third inner liner 123 has a first folded edge 1241 extending away from the refrigeration chamber 30 and a second folded edge 1242 extending from the side of the first folded edge 1241 away from the third inner liner 123 toward the first inner liner 121. The third inner liner 123, the first folded edge 1241, and the second folded edge 1242 surround to form a first insertion groove 124. The first inner liner 121 has a third folded edge 1251 extending away from the refrigeration chamber 30, and a first insertion piece 125 extends from the end of the third folded edge 1251 away from the refrigeration chamber 30 toward the third inner liner 123.

[0135] With this design, the first insertion slot 124 and the first insertion piece 125 are inserted on the side of the third inner liner 123 away from the refrigeration chamber 30, without occupying space in the refrigeration chamber 30. Furthermore, the design of multiple folded edges extends the path of cold air escaping from the seams in the first chamber 31, reducing the risk of cold leakage and improving insulation. Additionally, during assembly, the first insertion piece 125 is inserted into the first insertion slot 124 along the first direction, and is fully assembled when it abuts against the first folded edge 1241.

[0136] In one embodiment, after the third inner liner 123 is spliced ​​with the first inner liner 121, the inner wall surface of the third inner liner 123 is parallel to the inner wall surface of the first inner liner 121, forming a regular shape for the first compartment 11 with high space utilization.

[0137] In one specific embodiment, the inner wall surface of the third inner liner 123 is coplanar with the inner wall surface of the first inner liner 121, and the wall surface of the first compartment 31 is flat and without steps, which is conducive to improving the utilization rate of space.

[0138] The third inner liner 123 and the second inner liner 122 adopt a splicing scheme similar to the above-described plug-in method. One of the third inner liner 123 and the second inner liner 122 is provided with a second plug-in slot 126, and the other is provided with a second plug-in piece 127 that mates with the second plug-in slot 126. The assembly of the third inner liner 123 and the second inner liner 122 can be completed simply by inserting the second plug-in piece 127 into the second plug-in slot 126, which is simple and convenient.

[0139] In one embodiment, a relatively complex second insertion slot 126 is disposed on the third inner liner 123. A relatively simple second insertion piece 127 is disposed on the second inner liner 122. This simplifies the design and manufacturing process of the second inner liner 122.

[0140] The third inner liner 123 has a second insertion groove 126 on the side facing the second inner liner 122, and the second inner liner 122 has a second insertion piece 127 that mates with the second insertion groove 126. The second insertion piece 127 is inserted into the second insertion groove 126 along the first direction, making assembly simple.

[0141] The third inner liner 123 has a fourth folded edge 1261 extending away from the refrigeration chamber 30, and a fifth folded edge 1262 extending from the side of the fourth folded edge 1261 away from the third inner liner 123 toward the second inner liner 122. The third inner liner 123, the fourth folded edge 1261, and the fifth folded edge 1262 surround to form a second insertion groove 126. The end of the second inner liner 122 facing the third inner liner 123 has a sixth folded edge 1271 extending away from the refrigeration chamber 30. The second insertion piece 127 extends from the end of the sixth folded edge 1271 away from the refrigeration chamber 30 toward the third inner liner 123.

[0142] During assembly, the second insert piece 127 is inserted into the second insert groove 126 along the first direction, and the fourth folded edge 1261 also serves to limit the position of the second insert piece 127.

[0143] In one embodiment, after the third inner liner 123 is spliced ​​with the second inner liner 122, the inner wall surface of the third inner liner 123 is parallel to the inner wall surface of the second inner liner 122, and the resulting second compartment 12 has a regular shape and high space utilization.

[0144] In one specific embodiment, the inner wall surface of the third inner liner 123 is coplanar with the inner wall surface of the second inner liner 122, and the wall surface of the second compartment 32 is flat without steps, resulting in high space utilization.

[0145] Additionally, the first inner liner 121 includes a first bottom wall 1211 and a first side wall 1212. The first side wall 1212 is connected to the edge of the first bottom wall 1211 that does not contact the third inner liner 123. The second inner liner 122 includes a second bottom wall 1221 and a second side wall 1222. The second side wall 1222 is connected to the edge of the second bottom wall 1221 that does not contact the third inner liner 123. The third inner liner 123 includes a third bottom wall 1231 and a third side wall 1232. The third side wall 1232 is connected to the edge of the third bottom wall 1231 that does not contact the first inner liner 121 or the second inner liner 122.

[0146] In the height direction, the first bottom wall 1211 is lower than the third bottom wall 1231, and the height dimension of the first side wall 1212 is greater than the height dimension of the third side wall 1232. The third inner liner 123 also includes a first connecting edge 1234 for connecting with the first bottom wall 1211, the first connecting edge 1234 extending downward from the third bottom wall 1231 toward the edge of the first inner liner 121 (the edge of the first bottom wall 1211).

[0147] In the height direction, the third bottom wall 1231 is lower than the second bottom wall 1221, and the height dimension of the third side wall 1232 is greater than the height dimension of the second side wall 1222. The third inner liner 123 also includes a second connecting edge 1235 for connecting with the second bottom wall 1221, the second connecting edge 1235 extending upward from the third bottom wall 1231 toward the edge of the second inner liner 122 (the edge of the second bottom wall 1221).

[0148] In the height direction, the height difference H1 is less than the height difference H2, and the dimension of the first connecting edge 1234 is less than the length of the second connecting edge 1235.

[0149] The drain hole 1233 is located at the connection between the third bottom wall 1231 and the second connecting edge 1235, close to the compressor chamber, to facilitate drainage.

[0150] The assembly methods of the cooling unit 20 and the inner liner 12 include, but are not limited to, the methods described below.

[0151] In the first embodiment, the cooling component 20 is assembled into the inner liner 12 along the opening direction.

[0152] The cooling component 20 and the inner liner 12 are fitted with a concave-convex structure to improve the sealing of the connection and prevent cold leakage and / or odor transfer between the first compartment 31 and the second compartment 32.

[0153] In some embodiments, the inner liner 12 is provided with a first protrusion 131 extending into the cooling compartment 30, and the cooling assembly 20 is provided with a first groove 132 that mates with the first protrusion 131. In the spliced ​​inner liner 12, the first protrusion 131 is provided on the third inner liner 123.

[0154] The first protrusion 131 is disposed on the side wall 1202 (third side wall 1232) of the inner liner 12, and the first protrusion 131 extends along the opening direction. By aligning the first groove 132 with the first protrusion 131 and pushing the cooling component 20 inward from the opening (in the direction from the opening towards the third bottom wall 1231), the cooling component 20 and the inner liner 12 can be assembled.

[0155] In one embodiment, the width of the end of the first protrusion 131 facing the opening in a first direction is W1, and the width of the end of the first protrusion 131 facing away from the opening (the end facing the inner wall opposite to the opening) in the first direction is W2. The width W1 is smaller than the width W2. As the cooling assembly 20 is pushed inward, the first protrusion 131 and the first groove 132 fit more and more tightly, achieving a seal.

[0156] In one embodiment, the width of the first protrusion 131 gradually increases in the direction from the opening inward (from the opening into the cooling chamber 30), so that there is no interference during the insertion process and the sealing performance after insertion is improved.

[0157] The cooling assembly 20 has a first frame 1321 connected to the side of the first protrusion 131 facing the first compartment 31, a second frame 1322 connected to the side of the first protrusion 131 facing the second compartment 32, and a third frame 1323 connected to the side of the first protrusion 131 facing the opening. The first frame 1321, the second frame 1322 and the third frame 1323 together define a first groove 132.

[0158] After the cooling assembly 20 is inserted into the inner liner 12, the first frame 1321 is fitted against the side of the first protrusion 131 facing the first compartment 31, the second frame 1322 is fitted against the side of the first protrusion 131 facing the second compartment 32, and the third frame 1323 is fitted against the side of the first protrusion 131 facing the opening. This surface-to-surface fitting method can improve the sealing performance of the cooling assembly 20 and the inner liner 12 at the connection point.

[0159] At least a portion of the third frame 1323 is a first bevel 1324. Correspondingly, the side of the first protrusion 131 facing the opening is also configured as a second bevel 1324'. When the cooling assembly 20 is inserted, sealing and limiting are achieved by pressing with the bevels.

[0160] In one embodiment, the first inclined surface 1324 is located on the side of the cooling assembly 20 facing the second chamber 32 with a higher set temperature, and the first inclined surface 1324 extends from the first chamber 31 to the second chamber 32 and away from the opening. The second air outlet 21c is located above the first inclined surface 1324, and the first inclined surface 1324 also serves as a guide for airflow.

[0161] Alternatively, the third frame 1323 has a step, and the first protrusion 131 also has a corresponding step on the side facing the opening. The step can increase the sealing of the opening and at the same time achieve positioning and limiting functions.

[0162] The third frame 1323, facing the second compartment 32, is lower than the cooling unit 20 facing the first compartment 31 to form a step. The step is located on the side of the cooling unit 20 facing the second compartment 32. The second air outlet 21c is located above the step.

[0163] In some embodiments, the inner liner 12 has a second groove 133 opening toward the interior of the cooling compartment 30, and the cooling assembly 20 has a second protrusion 134 that mates with the second groove 133. In a modular inner liner 12, the second groove 133 is disposed on a third inner liner 123.

[0164] The second groove 133 is disposed on the side wall 1202 (third side wall 1232) of the inner liner 12, and the second groove 133 extends along the opening direction. By aligning the second groove 133 with the second protrusion 134 and pushing the cooling component 20 inward from the opening, the cooling component 20 and the inner liner 12 can be assembled.

[0165] Specifically, the inner liner 12 is provided with a fourth side frame 1331 and a fifth side frame 1332 that protrude into the cooling chamber 30. The fourth side frame 1331 and the fifth side frame 1332 are spaced apart along the first direction and extend along the opening direction. A second groove 133 is formed between the fourth side frame 1331 and the fifth side frame 1332.

[0166] The fourth frame 1331 and the fifth frame 1332 are located on the side closest to the first compartment 31 and the second compartment 32, respectively. When the set temperature of the first compartment 31 is lower than the set temperature of the second compartment 32, the protrusion of the fourth frame 1331 from the inner liner 12 into the cooling compartment 30 is greater than the protrusion of the fifth frame 1332 from the inner liner 12 into the cooling compartment 30. This can improve the sealing performance of the first compartment 31 and enhance the heat preservation effect.

[0167] The cooling assembly 20 has a first frame 1321 connected to the fourth frame 1331, a second frame 1322 connected to the fifth frame 1332, and a third frame 1323 connecting the first frame 1321 and the second frame 1322 on the side where the opening is located. The first frame 1321, the second frame 1322 and the third frame 1323 all extend from the cooling assembly 20 toward the inner liner 12 and together form a second protrusion 134.

[0168] The first frame 1321, the second frame 1322 and the third frame 1323 together define the first groove 132, which can accommodate the terminal wiring and prevent interference during insertion.

[0169] The evaporator 23 is installed in the cooling assembly 20. The connection methods of the throttling element (e.g., capillary tube), the return pipe of the evaporator and the compressor, and the condenser include, but are not limited to, the following.

[0170] In the first embodiment, an operating space Z is provided on one side of the bottom of the second chamber 32 adjacent to the cooling assembly 20, and the interface end 23a of the evaporator 23 is located within the operating space Z. The cooling assembly 20 includes a cover plate 211 detachably connected to the housing 21, which covers the operating space Z.

[0171] It should be noted that after the cooling unit 20 is placed in the cooling chamber 30, the two interface ends 23a of the evaporator 23 need to be connected to the return pipe and the capillary tube (not shown in the figure) respectively. The return pipe is connected to the compressor, and the capillary tube is connected to the condenser, so as to realize the circulation of refrigerant.

[0172] Based on this, an operating space Z is reserved at the bottom of the second chamber 32, and the interface end 23a of the evaporator 23 is placed within the operating space Z. The operating space Z can be opened by removing the cover plate 211, and then the welding operation of the interface end 23a to the return pipe and capillary tube can be performed within the operating space Z. After welding, the cover plate 211 is reinstalled to cover the operating space Z. This allows for efficient and convenient connection of the interface end 23a of the evaporator 23 to the return pipe and capillary tube. By covering the operating space Z with the cover plate 211, the storage in the second chamber 32 is not affected, and the interface end 23a is concealed.

[0173] The bottom height of the operating space Z is less than the bottom height of the second compartment 32. The operating space Z extends downward from the bottom of the second compartment 32, thus not occupying the storage space within the second compartment 32. The bottom height of the operating space Z is greater than the bottom height of the cooling unit 20 to prevent defrosting water from the cooling unit 20 from flowing into the operating space Z and to avoid obstructing the installation of the drain pipe.

[0174] The top of the operating space Z is open, and a cover plate 211 is located above the operating space Z to cover it. It is understood that when the cover plate 211 is removed, the operating space Z and the second chamber 32 are in a connected state, allowing for welding operations of the interface end 23a to the return air pipe and capillary tube within the operating space Z. The cover plate 211 isolates the operating space Z from the second chamber 32, and also serves as part of the bottom wall of the second chamber 32.

[0175] The refrigeration equipment also includes a compressor compartment 50, which is located below the second compartment 32. The inner liner 12 has a stepped portion 12b protruding toward the compressor compartment 50, and an operating space Z is formed between the stepped portion 12b and the cooling assembly 20.

[0176] The second chamber 32 is smaller in height than the first chamber 31, meaning the bottom of the second chamber 32 is higher than the bottom of the first chamber 31. The housing 10 forms an empty area below the second chamber 32, and the compressor compartment 50 is located in the empty area. The compressor compartment 50 is equipped with a compressor, condenser, and water tray, etc.

[0177] The step portion 12b is located at the bottom of the second chamber 32 and protrudes towards the compressor compartment 50, thereby forming an operating space Z on the side of the cooling assembly 20 facing the compressor compartment 50. In this way, on the one hand, the empty area formed below the second chamber 32 by the housing 10 can be effectively utilized, and on the other hand, the operating space Z is adjacent to the compressor compartment 50, which facilitates the placement of the return gas pipe connected to the compressor and the capillary tube connected to the condenser in the operating space Z for subsequent welding to the interface end 23a.

[0178] The inner liner 12 also includes a through hole 12a, which is located on the stepped portion 12b and connects to the operating space Z. It can be understood that the return air pipe and the capillary tube pass through the through hole 12a into the operating space Z and then connect to the interface end 23a.

[0179] The distance between the step portion 12b and the cooling component 20 is not less than 40mm, thereby providing sufficient welding operation space for the interface end 23a to be welded to the return pipe and capillary tube.

[0180] The dimension of the operating space Z along the direction perpendicular to the arrangement of the first chamber 31 and the second chamber 32 is smaller than the dimension of the second chamber 32 along the direction perpendicular to the arrangement of the first chamber 31 and the second chamber 32, that is, the dimension of the operating space Z along the second direction is smaller than the dimension of the second chamber 32 along the second direction.

[0181] Thus, the cover plate 211 can overlap the bottom wall of the second chamber 32 on both sides along the second direction. On the one hand, it can support the cover plate 211, thereby preventing the items stored in the second chamber 32 from pressing on the cover plate 211 and causing the cover plate 211 to deform or even be damaged. On the other hand, the cover plate 211 can effectively prevent excessive leakage of cold air from the second chamber 32 into the operating space Z.

[0182] The cover plate 211 includes a first part 211a connected to the housing 21 and a second part 211b extending from the bottom end of the first part 211a toward the second compartment 32, the second part 211b covering the operating space Z.

[0183] The cover plate 211 is L-shaped and is connected to the side of the housing 21 facing the second compartment 32. The cover plate 211 is connected to the housing 21 via a first part 211a and covers the operating space Z via a second part 211b.

[0184] The second part 211b overlaps the bottom wall of the second chamber 32. The dimensions of the second part 211b along both the first and second directions are larger than the dimensions of the operating space Z along both directions, thus completely covering the operating space Z. The second part 211b is supported by the bottom wall of the second chamber 32, effectively preventing excessive leakage of cold air from the second chamber 32 into the operating space Z.

[0185] Of course, in other embodiments, the second part 211b may also be flush with the bottom wall of the second compartment 32, thereby ensuring the flatness of the bottom wall of the second compartment 32.

[0186] The bottom of the second air duct plate 210 is provided with a through hole 210c to connect the evaporator cavity 22 and the operating space Z. The evaporator 23 is located in the evaporator cavity 22, and the interface end 23a of the evaporator 23 extends through the through hole 210c into the operating space Z.

[0187] In the second embodiment, the cover plate 28 includes a first cover plate 28c that cooperates with the housing 21 to open or close the evaporator cavity 22. The first cover plate 28c is detachably connected to the housing 21 or the inner liner 12. The evaporator cavity 22 can be opened by removing the first cover plate 28c, thereby making the evaporator cavity 22 in a non-closed state.

[0188] It should be noted that the cooling component 20 in this utility model serves as a partition to divide the refrigeration chamber 30 into a first chamber 31 and a second chamber 32. After the cooling component 20 is placed in the refrigeration chamber 30, the evaporator 23 needs to be connected to the return pipe and the capillary tube (not shown in the figure). The return pipe is connected to the compressor, and the capillary tube is connected to the condenser, thereby realizing the circulation of refrigerant.

[0189] Based on this, the evaporator cavity 22 is opened by removing the first cover plate 28c, thereby exposing the evaporator 23 located in the evaporator cavity 22, so that the evaporator 22 can be connected to the return pipe and capillary tube in the future. After the connection is completed, the evaporator cavity 22 is closed by reinstalling the first cover plate 28c.

[0190] Of course, in other embodiments, the housing 21 can be assembled separately in the refrigeration chamber 30 first, then the evaporator 23 can be installed in the evaporator cavity 22, and then the evaporator 23 can be connected to the return pipe and capillary tube (not shown in the figure). Finally, the first cover plate 28c can be installed to seal the evaporator cavity 22.

[0191] Specifically, the evaporator 23 has two interface ends 23a for connecting to the return pipe and the capillary tube, respectively. By removing the first cover plate 28c to expose the interface ends 23a and connecting the interface ends 23a to the return pipe and the capillary tube, the refrigerant can be circulated.

[0192] The interface end 23a is located on the top of the evaporator 23. The evaporator 23 and the fan 25 are spaced apart, thereby forming a welding operation space between the evaporator 23 and the fan 25 so that the interface end 23a can be connected to the return pipe and the capillary tube.

[0193] Because the evaporator 23 and the fan 25 are spaced apart, a welding operation space is formed at the connection position between the evaporator cavity 22 and the fan cavity 24. By placing the interface end 23a on top of the evaporator 23, the welding operation space can be effectively utilized for welding operations between the interface end 23a and the return pipe and capillary tube, thus eliminating the need to reserve welding operation space inside the housing 21 and reducing the space occupied inside the housing 21.

[0194] The connecting area between the evaporator cavity 22 and the fan cavity 24 is funnel-shaped. From the evaporator cavity 22 to the fan cavity 24, the cross-sectional area of ​​the connecting area gradually decreases, thus facilitating the fan 25 to guide the cold air from the evaporator 22 into the fan cavity 24. The interface end 23a is located directly below the fan 25, thereby utilizing the funnel-shaped connecting area as a welding operation space, increasing the dimension of the welding operation space along the height direction, so as to perform welding operations between the interface end 23a and the return pipe and capillary tube.

[0195] The distance between the evaporator 23 and the fan 25 is not less than 40mm, thus providing sufficient welding space for the welding of the interface end 23a to the return pipe and capillary tube. Furthermore, placing the interface end 23a on top of the evaporator 23, close to the opening of the housing 10, also facilitates subsequent welding operations.

[0196] The shell 21 is provided with a first through hole 21a that communicates with the evaporator cavity 22. The first through hole 21a is located on the side wall 21b of the shell 21 that is in contact with the inner wall of the inner liner 12. The inner liner 12 is provided with a second through hole 12a that is directly opposite the first through hole 21a.

[0197] It is understandable that the return pipe and capillary tube pass through the second through hole 12a and the first through hole 21a to enter the evaporator cavity 22, and then connect to the interface end 23a.

[0198] The inner liner 12 is provided with a receiving groove 12c, and a second through hole 12a is located at the position of the receiving groove 12c. The receiving groove 12c is formed by a recess from the inside of the inner liner 12 outward. In this way, when the return pipe or capillary tube is passed through the second through hole 12a, the return pipe or capillary tube can be bent and hidden in the receiving groove 12c, so as not to interfere with the subsequent assembly of the cooling component 20. After the cooling component 20 is placed in the refrigeration chamber 30, the second through hole 12a is aligned with the first through hole 21a. The first cover plate 28c is removed, and then the return pipe or capillary tube is passed through the first through hole 21a and enters the evaporator chamber 22, thereby welding it to the interface end 23a.

[0199] The dimensions of the receiving groove 12c along the height direction can be consistent with the dimensions of the first through hole 21a along the height direction, so that the return gas pipe or capillary tube that is bent and hidden in the receiving groove 12c can be straightened and extended into the evaporator cavity 22.

[0200] Of course, in other embodiments, the interface end 23a can also be set adjacent to the first through hole 21a. In this case, welding operation space can be reserved on the side of the housing 21 facing the first through hole 21a so as to perform welding operation between the interface end 23a and the return pipe and capillary.

[0201] The cover plate 28 also includes a second cover plate 28d that cooperates with the housing 21, and the first cover plate 28c is located below the second cover plate 28d.

[0202] Understandably, the second cover plate 28d is the upper cover plate, which cooperates with the housing 21 to close the fan cavity 24, and the first cover plate 28c is the lower cover plate, which cooperates with the housing 21 to open or close the evaporator cavity 22. By splitting the cover plate 28 into the first cover plate 28c and the second cover plate 28d, the first cover plate 28c can be removed separately to open the evaporator cavity 22 without affecting the assembly of the fan 25 and the fan cavity 24, thus simplifying the disassembly and assembly of the first cover plate 28c.

[0203] The first cover plate 28c has a mating part 28c-1 on one side of its top, and the second cover plate 28d has a notch 28d-1 that mates with the mating part 28c-1. The first cover plate 28c is positioned for installation by the mating part 28c-1 and the notch 28d-1.

[0204] In one specific embodiment, the first compartment 31 is a freezer compartment, the second compartment 32 is a refrigerator compartment, the compressor compartment 50 is located below the second compartment 32, and the cover plate 28 is located on the side of the cooling assembly 20 facing the first compartment 31.

[0205] The second chamber 32 is smaller in height than the first chamber 31, meaning the bottom of the second chamber 32 is higher than the bottom of the first chamber 31. The housing 10 forms an empty area below the second chamber 32, and the compressor compartment 50 is located in the empty area. The compressor compartment 50 is equipped with a compressor, condenser, and water tray, etc.

[0206] The refrigeration equipment 100 also includes a power supply component. The power supply component includes a terminal block 70 for electrical connection with the cooling unit 20 and a communication line connecting the terminal block 70 and the cooling unit 20.

[0207] The wiring terminal 70 is concealed at the connection between the inner liner 12 and the cooling component 20 and is not exposed in the first compartment 31 or the second compartment 32.

[0208] In some embodiments, the inner liner 12 is provided with a recessed portion facing away from the cooling compartment 30. The recessed portion is located on the inner liner 12 in the area that contacts the cooling component 20. The wiring terminal 70 is located in the recessed portion to avoid affecting the assembly of the cooling component 20 and the inner liner 12.

[0209] Specifically, the inner liner 12 is provided with a first protrusion 131 extending into the cooling compartment 30, and the cooling assembly 20 is provided with a first groove 132. The first groove 132 cooperates with the first protrusion 131 to allow the cooling assembly 20 to be assembled into the inner liner 12. The recess is located on the first protrusion 131.

[0210] In one embodiment, a first protrusion 131 is disposed on the side wall 1202 of the inner liner 12, and the first protrusion 131 extends along the opening direction; a plurality of recesses and their wiring terminals 70 located therein are arranged on the first protrusion 131 along the opening direction.

[0211] The first groove 132 has a recessed relief groove 1325 facing away from the first protrusion 131, which is used to accommodate the communication line connected to the terminal 70 to prevent interference during insertion.

[0212] In some embodiments, the inner liner 12 is provided with mounting holes 72 that connect the inside and outside of the cooling chamber 30. The mounting holes 72 are located on the inner liner 12 in the area that contacts the cooling component 20. The wiring terminal 70 is connected at the mounting holes 72 to the side of the inner liner 12 away from the cooling chamber 30.

[0213] Specifically, the inner liner 12 is provided with a first protrusion 131 extending into the cooling chamber 30, and the cooling component 20 is provided with a first groove 132. The first groove 132 cooperates with the first protrusion 131 to allow the cooling component 20 to be assembled into the inner liner 12. The mounting hole 72 is located on the first protrusion 131.

[0214] In one embodiment, a first protrusion 131 is disposed on the side wall 1202 of the inner liner 12, and the first protrusion 131 extends along the opening direction; a plurality of mounting holes 72 and wiring terminals 70 therein are arranged on the first protrusion 131 along the opening direction.

[0215] The first groove 132 has a recessed relief groove 1325 facing away from the first protrusion 131, which is used to accommodate the communication line connected to the terminal 70 to prevent interference during insertion.

[0216] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. All equivalent embodiments or modifications made without departing from the spirit of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An inner liner, characterized in that, The refrigeration chamber (30) includes a first inner liner (121), a second inner liner (122), and a third inner liner (123) that form a refrigeration chamber (30). The third inner liner (123) connects the first inner liner (121) and the second inner liner (122) at the middle of the refrigeration chamber (30), and the third inner liner (123) is provided with a plug-in structure for plugging into and engaging with the cooling assembly (20).

2. The inner liner according to claim 1, characterized in that: One of the third inner liner (123) and the first inner liner (121) is provided with a first insertion groove (124), and the other is provided with a first insertion piece (125) that cooperates with the first insertion groove (124); And / or, one of the third inner liner (123) and the second inner liner (122) is provided with a second insertion groove (126), and the other is provided with a second insertion piece (127) that cooperates with the second insertion groove (126).

3. The inner liner according to claim 2, characterized in that: After the third inner liner (123) is spliced ​​with the first inner liner (121), the inner wall surface of the third inner liner (123) is parallel to the inner wall surface of the first inner liner (121). And / or, after the third inner liner (123) is spliced ​​with the second inner liner (122), the inner wall surface of the third inner liner (123) is parallel to the inner wall surface of the second inner liner (122).

4. The inner liner according to claim 1, characterized in that: The third inner liner (123) is provided with a first insertion groove (124) on the side facing the first inner liner (121), and the first inner liner (121) is provided with a first insertion piece (125) that cooperates with the first insertion groove (124). And / or, the third inner liner (123) is provided with a second insertion groove (126) on the side facing the second inner liner (122), and the second inner liner (122) is provided with a second insertion piece (127) that cooperates with the second insertion groove (126).

5. The inner liner according to claim 4, characterized in that: The third inner liner (123) is provided with a first insertion slot (124), and the first inner liner (121) is provided with a first insertion piece (125); the third inner liner (123) has a first folded edge (1241) extending away from the refrigeration compartment (30) on the side facing the first inner liner (121), and a second folded edge (1242) extending from the side of the first folded edge (1241) away from the third inner liner (123) toward the side where the first inner liner (121) is located. The third inner liner (123), the first folded edge (1241), and the second folded edge (1242) surround and form the first insertion groove (124); the first inner liner (121) has a third folded edge (1251) extending away from the refrigeration chamber (30) at one end facing the third inner liner (123), and the first insertion piece (125) extends from the end of the third folded edge (1251) away from the refrigeration chamber (30) toward the location of the third inner liner (123).

6. The inner liner according to claim 4, characterized in that: The third inner liner (123) is provided with a second insertion slot (126), and the second inner liner (122) is provided with a second insertion piece (127); the third inner liner (123) has a fourth folded edge (1261) extending away from the refrigeration compartment (30) on the side facing the second inner liner (122), and a fifth folded edge (1262) extending from the side of the fourth folded edge (1261) away from the third inner liner (123) toward the second inner liner (122), the third inner liner (123) having a second insertion slot (126), and the second inner liner (1262) having a second insertion piece (127); the third inner liner (123) has a second insertion slot (126), and the second inner liner (122) has ... The three inner liner (123), the fourth folded edge (1261), and the fifth folded edge (1262) surround to form the second insertion groove (126); the second inner liner (122) has a sixth folded edge (1271) extending away from the refrigeration chamber (30) at one end facing the third inner liner (123), and the second insertion piece (127) extends from the end of the sixth folded edge (1271) away from the refrigeration chamber (30) toward the location of the third inner liner (123).

7. The inner liner according to claim 1, characterized in that: The first inner liner (121) includes a first bottom wall (1211) and a first side wall (1212); The second inner liner (122) includes a second bottom wall (1221) and a second side wall (1222); The third inner liner (123) includes a third bottom wall (1231) and a third side wall (1232); The first inner liner (121), the third inner liner (123), and the second inner liner (122) surround and form the upward-opening refrigeration chamber (30). In the opening direction, the height of the first side wall (1212) is greater than the height of the second side wall (1222), and the height of the second side wall (1222) is less than the height of the third side wall (1232).

8. The inner liner according to claim 7, characterized in that: The bottom of the third inner liner (123) is provided with a drain hole (1233), which is located at the bottom end of the third bottom wall (1231); And / or, the third inner liner (123) further includes a first connecting edge (1234) for connecting with the first bottom wall (1211), the first connecting edge (1234) extending downward from the edge of the third bottom wall (1231) toward the first bottom wall (1211); the third inner liner (123) further includes a second connecting edge (1235) for connecting with the second bottom wall (1221), the second connecting edge (1235) extending upward from the edge of the third bottom wall (1231) toward the second bottom wall (1221).

9. A refrigeration device, characterized in that: include: The inner liner (12) according to any one of claims 1-8; Cooling assembly (20) is inserted into the third inner liner (123).

10. The refrigeration equipment according to claim 9, characterized in that: The cooling assembly (20) divides the cooling chamber (30) into a first chamber (31) and a second chamber (32); The cooling assembly (20) includes a housing (21), an evaporator cavity (22) located in the housing (21), an evaporator (23) located in the evaporator cavity (22), a fan cavity (24) located above the evaporator cavity (22) and connected to the evaporator cavity (22), a fan (25) located in the fan cavity (24), a first air duct (26) connecting the fan cavity (24) and the first compartment (31), and a second air duct (27) connecting the fan cavity (24) and the second compartment (32). And / or, the cooling assembly (20) is provided with a first air supply outlet (28a) supplying cold air to the first chamber (31), a first return air outlet (28b) returning air from the first chamber (31) to the cooling assembly (20), a second air supply outlet (21c) supplying cold air to the second chamber (32), and a second return air outlet (21d) returning air from the second chamber (32) to the cooling assembly (20).

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