Sideboard refrigerator

Abstract

The utility model relates to the technical field of refrigerator manufacturing technique provides a meal side cabinet refrigerator, including inner bag subassembly and air cooling subassembly, and the back wall area of freezing inner bag one side is equipped with containing recess; Air cooling subassembly includes first evaporimeter, main body frame, inboard and side plate, and the inboard and main body frame enclose and form to have installation chamber, and the side plate and main body frame enclose and form air inlet channel, and first evaporimeter is located in installation chamber, air cooling subassembly is located in containing recess, and inboard is configured as the lateral wall of freezing chamber, the utility model discloses a freezing inner bag one side wall is formed to air cooling subassembly as freezing inner bag, thereby can avoid air cooling subassembly for freezing inner bag in depth direction space's occupation, has improved the utilization of refrigerator for depth space.

Description

Technical Field

[0001] This invention relates to the field of refrigerator manufacturing technology, and more particularly to a sideboard refrigerator. Background Technology

[0002] Sideboard refrigerators typically employ a vertical center-mounted layout design. In this type of refrigerator, the evaporator is located behind the vertical beam inside the freezer compartment, and cooling for both the refrigerator and freezer compartments is achieved through a single system.

[0003] In related technologies, refrigerators with a vertical center layout generally use a back-mounted air duct refrigeration system. Due to its structural characteristics, it is necessary to reserve a considerable amount of space at the back of the refrigerator for air duct layout and heat dissipation. This inevitably encroaches on the overall depth of the inner liner components, resulting in low utilization of the internal depth space of the refrigerator. Summary of the Invention

[0004] This invention provides a sideboard refrigerator to solve the problem that the air ducts built in the existing sideboard refrigerator occupy the space in the depth direction of the refrigerator, making it difficult to optimize the overall thickness of the refrigerator.

[0005] This utility model provides a sideboard refrigerator, including an inner liner assembly and a cooling assembly. The inner liner assembly includes a freezing inner liner for forming a freezing chamber, and a receiving groove is formed in the back wall area near the freezing inner liner. The cooling assembly includes a first evaporator, a main frame, an inner side plate, and a side plate. The inner side plate is fixedly disposed on one side of the main frame and forms an installation chamber with the main frame. The side plate is fixedly disposed on one side edge of the main frame and forms an air inlet channel connecting the freezing chamber and the installation chamber with the main frame. The first evaporator is disposed in the installation chamber. The end of the cooling assembly with the side plate is disposed in the receiving groove, and the inner side plate is configured as the side wall of the freezing chamber in the width direction.

[0006] According to the sideboard refrigerator provided by this utility model, the inner side panel is provided with a plurality of partition support members, and the plurality of partition support members are arranged at intervals along the height direction to form a storage space between adjacent partition support members.

[0007] According to the sideboard refrigerator provided by this utility model, multiple refrigeration air outlets are provided on the air inlet channel. The refrigeration air outlets are located near the back panel of the refrigeration chamber, and the multiple refrigeration air outlets are arranged one-to-one with the storage space.

[0008] According to the sideboard refrigerator provided by this utility model, each of the frozen air outlets has an air guide protrusion on the back wall of the frozen chamber, the air guide protrusion has a guiding slope, and the guiding slope is arranged facing the frozen air outlet.

[0009] According to the sideboard refrigerator provided by this utility model, a freezer return air vent is provided at the bottom of the inner side panel. The freezer return air vent is located away from the back wall of the freezer chamber and communicates with the installation chamber.

[0010] According to the sideboard refrigerator provided by this utility model, the air-cooling component further includes a refrigeration fan, which is disposed in the mounting chamber and located above the first evaporator. The refrigeration fan is used to drive the cooling air to circulate in the refrigeration chamber.

[0011] According to the sideboard refrigerator provided by this utility model, a process window is provided on the inner side panel, and the process window is detachably connected to a sealing cover.

[0012] According to the sideboard refrigerator provided by this utility model, the inner liner assembly further includes a refrigerator inner liner for forming a refrigerator compartment, and the refrigerator inner liner is provided with a direct cooling assembly, which is configured to provide cooling energy to the refrigerator compartment; wherein, the direct cooling assembly includes a second evaporator, and the first evaporator and the second evaporator are connected in series in the direction of refrigerant flow through a pipeline system.

[0013] According to the sideboard refrigerator provided by this utility model, the piping system includes a refrigerant input pipe and a return gas heat exchange pipe. The refrigerant input pipe is connected to the medium inlet pipe of the first evaporator, and a first connecting pipe section is formed at the connection position. One end of the return gas heat exchange pipe is connected to the medium outlet pipe of the first evaporator, and a second connecting pipe section is formed at the connection position. The other end of the return gas heat exchange pipe is connected to the second evaporator. The connection ends of the medium inlet pipe and the medium outlet pipe are both constructed as constricted structures, and the connection ends of the refrigerant input pipe and the return gas heat exchange pipe are both constructed as flared structures. The constricted structure and the flared structure are connected in a cooperative manner.

[0014] According to the sideboard refrigerator provided by this utility model, the first connecting pipe segment and the second connecting pipe segment are inclined, and the angle between the first connecting pipe segment and the second connecting pipe segment and the horizontal plane is 30°-55°.

[0015] According to the sideboard refrigerator provided by this utility model, the second evaporator is located on the back wall of the inner liner of the refrigerator.

[0016] According to the sideboard refrigerator provided by this utility model, an installation plate is provided on the back wall of the refrigeration liner, and the second evaporator is provided on the installation plate.

[0017] The sideboard refrigerator provided by this utility model has an air-cooling component that is embedded in a receiving groove, so that the air-cooling component serves as a side wall of the freezer liner. This avoids the air-cooling component occupying space in the depth direction of the freezer liner and improves the utilization of the depth space of the refrigerator. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention 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 some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This utility model provides an overall structural diagram of a sideboard refrigerator.

[0020] Figure 2 This is a rear view of the internal structure of the sideboard refrigerator provided by this utility model.

[0021] Figure 3 This is an exploded assembly diagram of the air-cooled component in the sideboard refrigerator provided by this utility model.

[0022] Figure 4 This is one of the exploded structural diagrams of the air-cooling component in the sideboard refrigerator provided by this utility model.

[0023] Figure 5 This is the second exploded structural diagram of the air-cooling component in the sideboard refrigerator provided by this utility model.

[0024] Figure 6 This is a schematic diagram of the connection structure of the air-cooling component in the sideboard refrigerator provided by this utility model.

[0025] Figure 7 This utility model provides Figure 6 A magnified structural diagram of point A in the middle.

[0026] Figure label:

[0027] 10. Inner liner assembly; 11. Freezer inner liner; 111. Freezer chamber; 112. Receiving groove; 113. Air guide protrusion; 1131. Guide slope; 12. Refrigerator inner liner; 121. Refrigerator chamber; 20. Air-cooled assembly; 21. Main frame; 211. Installation chamber; 212. Cold air output port; 213. Return air port; 214. Flow channel; 215. Freezer air inlet; 22. Inner side panel; 221. Freezer return air inlet; 222. Process window; 22 3. Sealing cover plate; 224. Partition support; 23. Side plate; 24. Refrigeration fan; 25. First evaporator; 251. Medium inlet pipe; 252. Medium outlet pipe; 30. Direct cooling assembly; 31. Second evaporator; 32. Mounting plate; 40. Refrigerant input pipe; 41. First refrigerant pipe section; 42. Second refrigerant pipe section; 43. First connecting pipe section; 50. Return gas heat exchange pipe; 51. First return gas pipe section; 52. Second return gas pipe section; 53. Second connecting pipe section. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0029] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "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. They are only for the purpose of clarifying the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0031] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] A refrigerator designed for a sideboard needs to have a certain capacity while ensuring its overall size isn't excessively large. In related technologies, both the refrigerator and freezer compartments are cooled by air, typically with the air ducts constructed on the back wall along the depth direction (X). This results in a thicker refrigerator for the same volume, occupying more space. Furthermore, in single-system refrigerators, the refrigerator and freezer compartments share a single refrigeration system, with cold air flowing through ducts. This inevitably leads to odor mixing between the two compartments.

[0034] Regarding the problems in related technologies, such as Figures 1-4As shown, this embodiment provides a sideboard refrigerator, including an inner liner assembly 10 and a cooling assembly 20. The inner liner assembly 10 includes a freezing inner liner 11 for forming a freezing chamber 111, and a receiving groove 112 is provided on the back wall area near the freezing inner liner 11. The cooling assembly 20 includes a first evaporator 25, a main frame 21, an inner side plate 22, and a side plate 23. The inner side plate 22 is fixedly disposed on one side of the main frame 21 and forms an installation chamber 211 with the main frame 21. The side plate 23 is fixedly disposed on one side edge of the main frame 21 and forms an air inlet channel with the main frame 21 for connecting the freezing chamber 111 and the installation chamber 211. The first evaporator 25 is disposed in the installation chamber 211. The end of the cooling assembly 20 with the side plate 23 is disposed in the receiving groove 112, and the inner side plate 22 is configured as the side wall of the freezing chamber 111 in the width direction Y. Typically, when a refrigerator is cooling, it needs to use air ducts to deliver cooled air to the freezer compartment 111 and the refrigerator compartment 121. This requires air ducts to be installed on the back walls of the freezer liner 111 and the refrigerator liner 121 to deliver the cold air to the corresponding compartments. In this embodiment, by using the air-cooling component 20 as a side wall of the freezer compartment 111 in the width direction Y, this method can effectively avoid the space occupied by the constructed air ducts in the depth direction X of the refrigerator, and can significantly reduce the overall thickness of the refrigerator while maintaining the same horizontal volume.

[0035] Specifically, the inner liner assembly 10 typically includes a freezing inner liner 11 and a refrigeration inner liner 12. The refrigeration inner liner 12 is positioned above the freezing inner liner 11, and the interior of the refrigeration inner liner 12 defines a refrigeration chamber 121 for food storage. The interior of the freezing inner liner 11 defines a freezing chamber 111 for food storage. An inner side panel 22 is disposed on the inner side surface of the main frame 21, and the outer side surface of the main frame 21 is connected to the left or right wall of the freezing chamber 111. An integral enclosure structure is formed on the main frame 21, located in the middle of the main frame 21 and occupying most of the space of the main frame 21. After the inner side panel 22 is connected to the main frame 21, the space enclosed by the enclosure and the inner side panel 22 serves as the installation chamber 211 of the first evaporator 25.

[0036] The enclosure has an open return air port 213 at the bottom. The return air in the freezer chamber 111 flows back to the bottom of the installation chamber 211, which is the bottom of the first evaporator 25, through the return air port 213, and is recooled and returned to the circulation path under the action of the first evaporator 25.

[0037] The first evaporator 25 is an air-cooled evaporator. The main frame 21 supporting the air-cooled evaporator has one end connected to the side plate 23, which is embedded in the receiving groove 112, serving as the main body of the side wall of the freezing chamber 111 on the Y-side of the width direction. During refrigeration, it works in conjunction with a fan or centrifugal fan to release cooled air into the freezing chamber 111, thereby lowering the temperature of the environment inside the freezing chamber 111 and maintaining a stable internal temperature.

[0038] It is understood that in this embodiment, the first evaporator 25 is an air-cooled evaporator, which is embedded in the receiving groove 112 so that the air-cooled component 20 is used as a side wall of the freezing chamber 111. This can effectively avoid occupying space in the depth direction X of the refrigerator, improve the utilization of the overall space, and help optimize the overall thickness of the refrigerator.

[0039] In specific settings, such as Figure 5 As shown, the main frame 21 has a cold air output port 212 on the side wall near the back wall of the freezer chamber 111 in the depth direction X, and a recessed flow channel groove 214 is formed on the side edge of this side. After being connected, the side plate 23 covers the flow channel groove 214 to form an air inlet channel, so that cold air can communicate with the freezer chamber 111 through the air inlet channel. That is, by setting the cold air port and return air port 213 on the main frame 21, the circulation of cooling air can be realized, maintaining the low temperature environment inside the freezer chamber 111. By setting them on the side wall, the overall thickness of the refrigerator can be effectively reduced, achieving an ultra-thin refrigerator structure that also accommodates a large volume.

[0040] In summary, as described in the above embodiments, Figure 1 , Figure 5 As shown, the inner side panel 22 is provided with multiple partition support members 224, which are arranged at intervals along the height direction Z to form storage spaces between adjacent partition support members 224. The freezer chamber 111 needs to be equipped with partitions in the width direction Y to support the items in each storage space. This embodiment achieves effective support for the partitions and improves the overall structural stability by providing partition support members 224 on the inner side.

[0041] Specifically, one side of the inner side plate 22 cooperates with the main frame 21 to form the installation chamber 211, while the other side of the inner side plate 22 is located inside the freezing chamber 111 and serves as the inner wall of the freezing chamber 111. It achieves effective support for the partition through the connecting partition support member 224.

[0042] It is understandable that the side wall of the refrigerator inner liner 12 is usually part of the solid structure that surrounds the freezer chamber 111. In this embodiment, by embedding the air-cooling component 20 in the receiving groove 112, the air-cooling component 20 can become the side wall of the freezer chamber 111, which can avoid the air duct occupying the space in the depth direction X of the refrigerator and improve the utilization of the space in the depth direction X of the refrigerator.

[0043] In conjunction with the above embodiments, multiple refrigeration air inlets 215 are provided on the air inlet channel. These inlets 215 are located near the back panel of the refrigeration chamber 111, and each inlet 215 corresponds to a storage space. Since temperatures may vary in different areas within the refrigeration chamber 111, this embodiment utilizes multiple refrigeration air inlets 215 to deliver cooled air to different levels of the refrigeration chamber 111, achieving uniform airflow and improving cooling quality.

[0044] Specifically, each storage space is equipped with a corresponding refrigeration air inlet 215, and each refrigeration air inlet 215 is connected to the air inlet channel. Adjacent partitions also have corresponding refrigeration air inlets 215. This method enables effective cooling of the space corresponding to each partition, improving cooling uniformity and achieving efficient cooling of each layer of the refrigeration chamber 111. Furthermore, by placing the refrigeration air inlets 215 near the back panel and the refrigeration return air inlets 221 away from the back panel, the path of airflow is increased, thereby achieving efficient cooling of the refrigeration chamber 111 and improving the uniformity of cold air distribution.

[0045] In a specific configuration, the refrigeration air outlet 215 is formed by connecting the main frame 21 and the side panel 23. For example... Figure 5 As shown, the main frame 21 has three cold air delivery slots on the wall near the back panel of the refrigerator in the depth direction X. After the side panel 23 is connected, it covers the cold air delivery slots to form a freezer air outlet 215, thereby realizing the delivery of cold air.

[0046] In conjunction with the above embodiments, each refrigeration air outlet 215 has a guide protrusion 113 on the back wall of the refrigeration chamber 111. The guide protrusion 113 has a guiding slope 1131, which faces the refrigeration air outlet 215. The refrigeration air outlet 215 is used for outputting cold air and cooling the internal environment of the refrigeration chamber 111. In this embodiment, the guide protrusion 113 allows the output cold air to diffuse through the guiding slope 1131, thereby making the cold air in the refrigeration chamber 111 more uniform and improving the uniformity of the overall cold air delivery inside the refrigeration chamber 111.

[0047] Specifically, the air guide protrusion 113 is located at the edge of the receiving groove 112. The air guide protrusion 113 is integrally formed with the freezing inner liner 11. By facing the freezing air outlet 215, the cold air is guided by the guide slope 1131, so that the cold air can be evenly guided into the freezing chamber 111, making the cooling effect more uniform.

[0048] It is understood that the side plate 23 is entirely embedded within the receiving groove 112, and a refrigeration air outlet 215 is formed between the side plate 23 and the main frame 21. This places the port of the refrigeration air outlet 215 at the location of the receiving groove 112, which results in a certain degree of distribution limitation for the cold air output from the refrigeration air outlet 215. In this embodiment, the air guide protrusion 113 enables effective diffusion of the cold air output from the refrigeration air outlet 215, thereby improving its distribution range and enhancing cooling efficiency and quality.

[0049] In some embodiments, a refrigeration return air vent 221 is provided at the bottom of the inner side plate 22. The refrigeration return air vent 221 is located away from the back wall of the refrigeration chamber 111 and communicates with the installation chamber 211. When the gas in the refrigeration chamber 111 is circulated for refrigeration, the internal gas flows back through the refrigeration return air vent 221 and exchanges heat with the first evaporator 25 to achieve circulated refrigeration.

[0050] Specifically, a grille structure is provided inside the freezer return air vent 221. This grille structure can prevent items stored in the cavity from clogging the freezer return air vent 221, thus improving the stability of air circulation. Furthermore, the location of the freezer return air vent 221 near the back panel improves the uniformity of cold air, ensuring a more even temperature distribution inside the refrigerator.

[0051] It is understandable that the cold air gradually absorbs heat and sinks in the freezing chamber 111. After its inner side plate 22 is connected to the main frame 21, it is embedded in the receiving groove 112 and serves as the inner wall of the freezing chamber 111. The bottom of the inner side plate 22 is also the bottom of the freezing chamber 111. By setting the freezing return air vent 221 at the bottom position, the freezing chamber 111 can be effectively cooled, and the stability of the return flow can also be improved.

[0052] In some embodiments, the air-cooled assembly 20 further includes a refrigeration fan 24, which is disposed within the mounting chamber 211 and located above the first evaporator 25. The refrigeration fan 24 drives the refrigerant air to circulate within the refrigeration chamber 111. After heat exchange in the first evaporator 25, the air in the mounting chamber 211 becomes cold air, which needs to be driven by the refrigeration fan 24 to enter the refrigeration chamber 111, thereby achieving air circulation within the refrigeration chamber 111 and stabilizing the temperature within the refrigeration chamber 111.

[0053] Specifically, a refrigeration air inlet 215 and a refrigeration air return inlet 221 are provided within the main frame 21. The refrigeration air inlet 215 is spatially connected to the location of the refrigeration fan 24, allowing refrigerated air to be driven by the refrigeration fan 24 and output from the refrigeration air inlet 215. The output cold air exchanges heat with the items in the refrigeration chamber 111, thus cooling the refrigeration chamber 111. The heat-exchanged air flows back through the refrigeration air return inlet 221, which is located at the bottom of the first evaporator 25. This allows the returning air to flow from the return air port 213 towards the upper part of the first evaporator 25, thereby achieving cooling during the flow. The first evaporator 25, in conjunction with the refrigeration fan 24, can drive the cold air to circulate, thereby achieving cooling of the air circulation loop inside the refrigeration chamber 111.

[0054] In this embodiment, by placing the refrigeration fan 24 above the first evaporator 25 and connecting the bottom of the first evaporator 25 with the refrigeration return air inlet 221, effective cooling of the return air can be achieved, allowing it to flow from the bottom of the evaporator upwards, thereby improving cooling efficiency.

[0055] During rotation, the blades of the refrigeration fan 24 drive the airflow in the area and create positive pressure at the cold air port of the main frame 21 to drive the airflow. On the side near the first evaporator 25, negative pressure is created to absorb the gas cooled by the first evaporator 25 and realize the driving of the entire cold air cycle.

[0056] In conjunction with the above embodiments, a process window 222 is provided on the inner side plate 22, and a sealing cover plate 223 is detachably connected to the process window 222. The first evaporator 25 is located in the installation chamber 211. The pipes on the first evaporator 25 need to be welded. In this embodiment, the setting of the process window 222 facilitates welding and subsequent maintenance.

[0057] Specifically, the refrigeration system includes piping for refrigerant flow. In this embodiment, the refrigeration system is located on the side wall of the freezing chamber 111. This requires connecting the piping, which necessitates welding during the connection process. In this embodiment, the welding position is aligned with the process window 222, allowing welding to be performed through the process window 222 during the welding process. Furthermore, subsequent maintenance can be performed quickly through the process window 222, reducing later maintenance costs. The sealing cover 223 is detachably connected using screws or snap-fit ​​connections.

[0058] In specific settings, such as Figure 5 As shown, the inner side plate 22 has multiple partition supports 224 on its surface located in the freezing chamber 111, and the multiple partition supports 224 are evenly arranged in the vertical direction. Specifically, as shown... Figure 5As shown, two partition support members 224 are provided on the surface of the inner side plate 22. One partition support member 224 is connected to the inner side plate 22, and the other partition support member 224 is connected to the sealing cover plate 223.

[0059] In conjunction with the above embodiments, the inner liner assembly 10 further includes a refrigerator inner liner 12 for forming a refrigerator compartment 121, and a direct cooling assembly 30 is provided on the refrigerator inner liner 12. The direct cooling assembly 30 is configured to provide cooling energy to the refrigerator compartment 121. The direct cooling assembly 30 includes a second evaporator 31, and the first evaporator 25 and the second evaporator 31 are connected in series in the refrigerant flow direction via a piping system. The first evaporator 25 and the second evaporator 31 share the same refrigerant, which reduces overall energy consumption and simplifies the overall structure. Furthermore, the direct cooling assembly 30 and the air-cooling assembly 20 cooperate. The direct cooling assembly 30 is directly connected to the refrigerator inner liner 12, while the air-cooling assembly 20 serves as a side wall of the freezer inner liner 11. This cooperation further reduces the space occupied by the refrigerator in the depth direction. Moreover, by providing the direct cooling assembly 30 on the refrigerator inner liner 12, independent cooling for freezing and refrigeration is achieved, effectively preventing odor mixing between the freezer and refrigerator compartments.

[0060] In this embodiment, the refrigeration process also includes a compressor. The compressor, air-cooled component 20, and direct-cooled component 30 are connected in series to form a closed-loop circuit for refrigerant flow. The refrigerator's refrigeration is achieved through the fan assembly and the direct-cooled component 30. By connecting the first evaporator 25 and the second evaporator 31 in series, and utilizing the refrigerant flowing through the first evaporator 25 to cool the refrigerator compartment 121, the utilization rate of cold energy is improved, and the energy consumption of the refrigeration system is reduced. Furthermore, by directly connecting the second evaporator 31 in series with the first evaporator 25, the overall structure of the refrigeration system is simplified, reducing the overall manufacturing difficulty.

[0061] The refrigeration system operates as follows: Refrigerant is introduced into the inlet of the first evaporator 25 through connecting pipes. After entering the first evaporator 25, the refrigerant cools the air inside the installation chamber 211, providing cooling energy to the freezer chamber 111. It then exits through the outlet of the first evaporator 25 and enters the second evaporator 31, where it provides cooling energy to the refrigerator chamber 121, thus cooling the refrigerator chamber 121. Finally, it exits through the outlet of the second evaporator 31 and returns to the compressor, completing one refrigeration cycle. This process repeats continuously, providing cooling energy to maintain a stable internal temperature in both the freezer chamber 111 and the refrigerator chamber 121.

[0062] The second evaporator 31 is a direct-cooling evaporator, which achieves cooling of the refrigerator compartment 121 by directly exchanging heat with the refrigerator inner liner 12. Conventional solutions involve constructing air ducts on the back wall of the refrigerator to deliver cold air to the freezer compartment 111 and the refrigerator compartment 121, and also to facilitate air recirculation within these compartments. However, this method results in a thicker refrigerator in the depth direction (X), occupying a large space. Furthermore, since the refrigerator compartment 121 and freezer compartment 111 share the same refrigeration system, odors can cross-contaminate, leading to a poor user experience. This embodiment changes the traditional method of using air ducts to transfer cold energy by directly installing a direct-cooling component 30 on the refrigerator inner liner 12 to achieve contact heat exchange, thereby reducing the ambient temperature inside the refrigerator compartment 121 and achieving cooling.

[0063] In a specific implementation, the entire refrigeration cycle system also includes connecting pipes connecting the compressor, the first evaporator 25, and the second evaporator 31. The compressor is connected to the first evaporator 25 via the connecting pipes, the first evaporator 25 is connected to the second evaporator 31 via the connecting pipes, and the second evaporator 31 is connected to the compressor, thus forming a complete loop. Since the second evaporator 31 uses contact heat exchange refrigeration, the number of direct-cooling evaporation modules in the second evaporator 31 is not limited in this embodiment; it can be one or more. Furthermore, when refrigerating the refrigerator compartment 121, the ambient temperature inside the refrigerator compartment 121 is maintained by directly setting direct cooling, thereby reducing the space occupied by the wall in the thickness direction and further effectively reducing the overall thickness of the refrigerator, achieving an ultra-thin refrigerator while maintaining a large capacity.

[0064] Understandably, the refrigerator compartment 121 requires less cooling energy compared to the freezer compartment 111. This embodiment utilizes a separate direct cooling component 30, allowing the second evaporator 31 to achieve cooling in the refrigerator compartment 121 through direct contact heat exchange. This approach avoids the need for an upper air duct in the refrigerator liner 12, thus minimizing the occupation of the X-space in the depth direction of the refrigerator compartment 121 and improving the utilization of that space. Furthermore, this method separates freezing and refrigeration, preventing odor mixing between the freezer compartment 111 and the refrigerator compartment 121.

[0065] In a specific configuration, there is a clearance between the refrigeration fan 24 and the first evaporator 25, and a portion of the piping system is located within this clearance. Since the overall space occupied by the connecting components is relatively small, the placement of each internal component is particularly important. This embodiment, by placing a portion of the piping within the clearance, makes the overall structure more compact, reduces internal space requirements, and improves the utilization rate of storage space.

[0066] In conjunction with the above embodiments, such as Figure 2 Figure 6 As shown, the piping system includes a refrigerant inlet pipe 40 and a return gas heat exchange pipe 50. The refrigerant inlet pipe 40 is connected to the medium inlet pipe 251 of the first evaporator 25, forming a first connecting pipe section 43 at the connection point. One end of the return gas heat exchange pipe 50 is connected to the medium outlet pipe 252 of the first evaporator 25, forming a second connecting pipe section 53 at the connection point. The other end of the return gas heat exchange pipe 50 is connected to the second evaporator 31. The connection ends of the medium inlet pipe 251 and the medium outlet pipe 252 are both constructed with a constricted end structure, while the connection ends of the refrigerant inlet pipe 40 and the return gas heat exchange pipe 50 are both constructed with a flared end structure. The constricted end structure and the flared end structure are fitted together for connection. Due to limited space, the connection position of the piping in the first evaporator 25 is difficult to determine during the connection process. In this embodiment, the use of flared and constricted end structures facilitates the connection of the piping and reduces the difficulty of positioning the connection.

[0067] Specifically, such as Figure 6 , Figure 7 As shown, the cross-section of the tube at the constricted position gradually decreases along the refrigerant flow direction, while the cross-section at the flared position gradually increases along the refrigerant flow direction. The first evaporator 25 has a medium inlet pipe 251 and a medium outlet pipe 252. The medium inlet pipe 251 is used to input the refrigerant, and the medium outlet pipe 252 is used to output the refrigerant after heat exchange. The refrigerant inlet pipe 40 is a capillary tube, with one end connected to the compressor's output port and the other end serving as a connecting end. This connecting end is configured with a flared structure, corresponding to the constricted structure at the connecting end of the medium inlet pipe 251. This allows the medium inlet pipe 251 to be pre-positioned within the capillary tube, facilitating subsequent welding. Similarly, the medium outlet pipe 252 is inserted into the connecting end of the return gas heat exchange pipe 50, achieving pre-positioning, which also facilitates subsequent welding operations.

[0068] In a specific embodiment, the first evaporator 25 is a finned air-cooled evaporator with an input port and an output port at its top. A medium inlet pipe 251 is connected to the input port, and a medium outlet pipe 252 is connected to the output port. The back wall of the refrigeration liner 11 has mounting holes through which the refrigerant inlet pipe 40 and the return gas heat exchange pipe 50 extend into the refrigeration chamber 111 and connect to the first evaporator 25 behind the vertical beam of the refrigeration chamber 111, thereby enabling the refrigerant to circulate.

[0069] It is understandable that the piping of the first evaporator 25 needs to be welded to other piping. During the connection, both need to be positioned to achieve a sealed weld. In this embodiment, the design of the constriction and flare structures allows for pre-positioning before welding, thereby facilitating welding processing and reducing the overall manufacturing difficulty.

[0070] In conjunction with the above embodiments, such as Figure 7 As shown, the first connecting pipe section 43 and the second connecting pipe section 53 are inclined, and the angle α between the first connecting pipe section 43 and the second connecting pipe section 53 and the horizontal plane is 30°-55°. In the refrigeration system, the refrigerant flows along the pipes. In this embodiment, by inclinedly setting the first connecting pipe section 43 and the second connecting pipe section 53, the flow of refrigerant is facilitated, and refrigerant deposition at the connection point is avoided.

[0071] Specifically, the part where the medium inlet pipe 251 is inserted into the refrigerant input pipe 40 is the first connecting pipe section 43, and the part where the medium outlet pipe 252 is inserted into the return gas heat exchange pipe 50 is the second connecting pipe section 53. The two connecting pipe sections are arranged in parallel and both form a certain angle α with the horizontal plane, which makes the connection position easy to weld and facilitates the flow of refrigerant.

[0072] In some embodiments, the angle α between the first connecting pipe section 43 and the second connecting pipe section 53 and the horizontal plane is 30°, 35°, 40°, 45°, 50° or 55°.

[0073] It is understandable that when the refrigerant passes through the constriction point during its flow, its flow speed will increase accordingly due to the reduced internal pipe diameter, which is beneficial for the flow of the refrigerant throughout the pipeline.

[0074] In conjunction with the above embodiments, the refrigerant input pipe 40 includes a first refrigerant pipe section 41 disposed on the back wall of the freezer inner liner 11, and a second refrigerant pipe section 42 extending from the back wall of the freezer inner liner 11 to the top space of the first evaporator 25. The second refrigerant pipe section 42 is connected to the medium inlet pipe 251. The return gas heat exchange pipe 50 includes a first return gas pipe section 51 disposed at the bottom of the second evaporator 31, and a second return gas pipe section 52 extending from the back wall of the freezer inner liner 11 to the top space of the first evaporator 25. The second return gas pipe section 52 is connected to the medium outlet pipe 252. The refrigerant input pipe 40 is used to input refrigerant to achieve heat exchange in the heat exchanger, while the return gas heat exchange pipe 50 is used to output the refrigerant after heat exchange and transfer the remaining cooling capacity of the refrigerant to the second evaporator 31, thereby realizing the refrigeration effect of the refrigerator chamber 121 and the freezer chamber 111 in a series circuit.

[0075] Specifically, the first refrigerant pipe section 41 is the main pipe of the entire refrigerant input pipe 40. A through hole is opened on the back wall of the freezer inner liner 11. The first end of the first refrigerant pipe section is connected to the compressor, and the end of the first refrigerant pipe section extends through the through hole into the space where the first evaporator 25 is located in the freezer chamber 111, thus forming the second refrigerant pipe section 42. The overall diameter of the refrigerant input pipe 40 is relatively small, which allows the refrigerant to be depressurized and its flow rate to be regulated when it passes through, helping to convert the high-pressure refrigerant after condensation into low-pressure, low-temperature refrigerant, thereby promoting evaporation and heat absorption and maintaining the refrigeration effect of the refrigerator. The first return gas pipe section 51 is the main section of the return gas heat exchange pipe 50. It is used to extend the pipe from the second evaporator 31 on the refrigerator inner liner 12 to the back wall of the freezer inner liner 11. The second return gas pipe section 52 extends through the through hole on the back wall of the freezer inner liner 11 to the space above the first evaporator 25 inside the freezer inner liner 11, thereby achieving pipe connection.

[0076] In specific settings, such as Figure 6 , Figure 7 As shown, the first return gas pipe section 51 extends vertically downward from the back wall of the refrigerator inner liner 12 to the back wall of the refrigerator inner liner 12, and has a layout gap between the first evaporator 25 and the refrigeration fan 24. The second refrigerant pipe section 42 and the second return gas pipe section 52 are both located within the layout gap.

[0077] It is understandable that by passing both the first refrigerant pipe section 41 and the first return pipe section through the back wall of the refrigeration inner liner 11, the overall space occupied by the pipe body can be effectively reduced, making the overall layout of the pipe body more reasonable and the overall structure more compact.

[0078] In the specific connection, the medium inlet pipe 251 of the first evaporator 25 is connected to the output end of the compressor through the refrigerant input pipe 40 (i.e., capillary tube), the medium outlet pipe 252 of the second evaporator 31 is connected to the inlet end of the second evaporator 31 through the return gas heat exchange pipe 50, and the outlet end of the second evaporator 31 is connected to the input port of the compressor through the return gas pipe, thus forming a refrigerant circulation pipeline.

[0079] In some embodiments, the second evaporator 31 includes multiple direct-cooling evaporator modules, which are arranged in parallel and disposed on at least one wall surface of the refrigerator inner liner 12. The second evaporator 31 achieves cooling of the refrigerator compartment 121 by contacting the wall surface of the refrigerator inner liner 12. This embodiment, through multiple direct-cooling evaporator modules, enables rapid cooling of the refrigerator compartment 121.

[0080] Specifically, multiple direct-cooling evaporator modules are evenly distributed on the walls of each side of the refrigerator liner 12. For example, direct-cooling evaporator modules are provided on the side walls of both sides of the refrigerator liner 12 and on the back wall of the refrigerator liner 12. This method enables more uniform cooling and covers a wider area, thereby improving the cooling efficiency of the refrigerator chamber 121.

[0081] Of course, multiple evaporator modules can also be placed on the same side wall. For example, multiple evaporator modules can be installed on the back wall of the refrigerator liner 12, covering most of the back wall area of ​​the refrigerator liner 12, thereby achieving rapid cooling of the refrigerator compartment 121. This method ensures that the direct cooling component 30 does not affect the utilization of the depth space of the refrigerator compartment 121, which is beneficial to the overall space utilization of the refrigerator.

[0082] In other embodiments, such as Figure 2 As shown, the second evaporator 31 is located on the back wall of the refrigerator inner liner 12. The refrigerator compartment 121 has a relatively small demand for cooling capacity. Therefore, in actual experiments, a single direct-cooling evaporator module can meet the cooling needs of the refrigerator compartment 121. This method can greatly reduce the complexity of the system, reduce the overall manufacturing cost of the refrigerator, and improve the utilization of the space in the depth direction X of the refrigerator compartment 121.

[0083] Specifically, the direct-cooling evaporator module includes spiral or disc-shaped evaporation pipes, which are installed on the back wall of the refrigerator inner liner 12. This allows for heat exchange with the back wall, thereby achieving cooling of the interior of the refrigerator compartment 121. In its actual configuration, the direct-cooling evaporator module is in direct contact with the wall of the refrigerator inner liner 12, thus achieving heat exchange and cooling of the interior of the refrigerator compartment 121.

[0084] In conjunction with the above embodiments, a mounting plate 32 is provided on the back wall of the refrigerator inner liner 12, and the second evaporator 31 is disposed on the mounting plate 32. Due to certain functional constructions, the back wall of the refrigerator inner liner 12 is often not a smooth surface, which leads to a decrease in the effective contact area and stability between the second evaporator 31 and the refrigerator inner liner 12. In this embodiment, the mounting plate 32 improves the connection stability of the second evaporator 31 and enhances the heat exchange efficiency.

[0085] Specifically, the mounting plate 32 is a plate structure that is fixedly connected to the inner liner 12 and located on the back wall of the inner liner 12. The second evaporator 31 is mounted on the mounting plate 32, which facilitates the installation of the second evaporator 31 and makes the connection of the second evaporator 31 more stable. Furthermore, since the mounting plate 32 is a plate structure, it can fit snugly against the inner liner 12 to achieve surface contact. The second evaporator 31 achieves heat exchange with the inner liner 12 through the mounting plate 32, thereby effectively cooling the refrigerator compartment 121.

[0086] In conjunction with the above embodiments, the mounting plate 32 includes a heat-conducting mounting plate. The side of the heat-conducting mounting plate that contacts the refrigerator inner liner 12 is configured as an adhesive surface, and the heat-conducting mounting plate is attached to the refrigerator inner liner 12. The second evaporator 31 exchanges heat through the heat-conducting mounting plate during heat exchange. Furthermore, in this embodiment, the adhesive method can further increase the contact area between the heat-conducting mounting plate and the refrigerator inner liner 12, thereby improving the heat exchange efficiency.

[0087] Specifically, one side of the heat-conducting mounting plate has an adhesive layer or the other side is designed as a welding layer. After bonding, it forms an integral part with the refrigerator inner liner 12, meaning there are no gaps between them. This enables efficient heat conduction, thereby improving heat exchange efficiency. For example, a heat-conducting adhesive is applied to one side of the heat-conducting mounting plate, which is then bonded to the back wall of the refrigerator inner liner 12. The coiled tubes of the second evaporator 31 are evenly arranged on the heat-conducting mounting plate.

[0088] In specific setups, the thermally conductive mounting plate is made of a material with good thermal conductivity. For example, the thermally conductive mounting plate can be made of metal plate, copper plate, aluminum plate, composite metal plate, etc. The connection of the thermally conductive mounting plate is achieved by coating one side of the copper plate or aluminum plate with thermally conductive silicone.

[0089] In conjunction with the above embodiments, such as Figure 2 As shown in the figure, the arrows indicate the direction of refrigerant flow. The second evaporator 31 includes a coil-type direct-cooling evaporator in which the refrigerant flows from top to bottom. In this embodiment, by limiting the refrigerant flow in the second evaporator 31 to be from top to bottom, uniform cooling of the refrigeration chamber 121 can be achieved.

[0090] Specifically, because cold air sinks, if the refrigerant in the second evaporator 31 flows from bottom to top, too much cold air will accumulate at the bottom, resulting in an excessively low temperature at the bottom of the refrigerator compartment 121 and poor overall temperature uniformity. This embodiment effectively solves the problem of cold air settling at the bottom by limiting the refrigerant flow direction of the coil-type direct-cooling evaporator to top to bottom, thus preventing excessively low temperatures at the bottom. Furthermore, by placing the direct-cooling component 30 on the back wall of the refrigerator compartment 121, combined with the air-cooling component 20 located on the side wall of the freezer compartment 111, the refrigerator avoids occupying space in the depth direction X, improving space utilization.

[0091] Through the above description of the embodiments, those skilled in the art can clearly understand that in each embodiment, by embedding the air-cooling component 20 within the receiving groove 112, the air-cooling component 20 as a whole serves as a sidewall of the freezing chamber 111, effectively avoiding space occupation in the depth direction X. Simultaneously, the independent cooling of direct cooling and air cooling effectively avoids the problem of odor cross-contamination between the freezing chamber 111 and the refrigeration chamber 121. Furthermore, by connecting the first evaporator 25 and the second evaporator 31 in series, the complexity of the refrigeration system can be simplified, reducing the overall manufacturing cost. Moreover, by limiting the inclined connection section between the pipe of the first evaporator 25 and the refrigerant inlet pipe 40 and the return gas heat exchange pipe 50, the flow of refrigerant is facilitated.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sideboard refrigerator, characterized in that, include: The inner liner assembly includes a freezing inner liner for forming a freezing chamber, and a receiving groove is provided in the back wall region near the freezing inner liner. An air-cooled assembly includes a first evaporator, a main frame, an inner side plate, and a side plate. The inner side plate is fixedly disposed on one side of the main frame and forms an installation chamber with the main frame. The side plate is fixedly disposed on one side edge of the main frame and forms an air inlet channel with the main frame for connecting the freezing chamber and the installation chamber. The first evaporator is disposed in the installation chamber. The air-cooling assembly has the end of the side plate located in the receiving groove, and the inner side plate is configured as the side wall of the freezing chamber in the width direction.

2. The sideboard refrigerator according to claim 1, characterized in that, The inner side plate is provided with a plurality of partition support members, which are arranged at intervals along the height direction to form storage space between adjacent partition support members.

3. The sideboard refrigerator according to claim 2, characterized in that, The air inlet channel is provided with multiple refrigeration air outlets, which are located near the back panel of the refrigeration chamber, and each of the multiple refrigeration air outlets corresponds to a storage space.

4. The sideboard refrigerator according to claim 3, characterized in that, Each of the aforementioned refrigeration air outlets has an air guide protrusion on the back wall of the refrigeration chamber, the air guide protrusion having a guiding slope, the guiding slope being positioned facing the refrigeration air outlet.

5. The sideboard refrigerator according to any one of claims 1-4, characterized in that, The bottom of the inner side plate is provided with a refrigeration return air vent, which is located away from the back wall of the refrigeration chamber and communicates with the installation chamber.

6. The sideboard refrigerator according to claim 1, characterized in that, The air-cooled assembly also includes a refrigeration fan, which is located in the mounting chamber and above the first evaporator. The refrigeration fan is used to drive the refrigerated air to circulate in the refrigeration chamber.

7. The sideboard refrigerator according to claim 1, characterized in that, A process window is provided on the inner side plate, and the process window is detachably connected to a sealing cover.

8. The sideboard refrigerator according to claim 1, characterized in that, The inner liner assembly also includes a refrigerated inner liner for forming a refrigerated chamber, and the refrigerated inner liner is provided with a direct cooling component, which is configured to provide cooling energy to the refrigerated chamber. The direct cooling component includes a second evaporator, and the first evaporator and the second evaporator are connected in series in the direction of refrigerant flow via a piping system.

9. The sideboard refrigerator according to claim 8, characterized in that, The piping system includes a refrigerant inlet pipe and a return gas heat exchange pipe. The refrigerant inlet pipe is connected to the medium inlet pipe of the first evaporator and forms a first connecting pipe section at the connection position. One end of the return gas heat exchange pipe is connected to the medium outlet pipe of the first evaporator and forms a second connecting pipe section at the connection position. The other end of the return gas heat exchange pipe is connected to the second evaporator. The connection ends of the medium inlet pipe and the medium outlet pipe are both constructed as constricted structures, and the connection ends of the refrigerant input pipe and the return gas heat exchange pipe are both constructed as flared structures. The constricted structure and the flared structure are connected in a cooperative manner.

10. The sideboard refrigerator according to claim 9, characterized in that, The first connecting pipe segment and the second connecting pipe segment are inclined, and the angle between the first connecting pipe segment and the second connecting pipe segment and the horizontal plane is 30°-55°.

11. The sideboard refrigerator according to claim 8, characterized in that, The second evaporator is located on the back wall of the refrigerator liner.

12. The sideboard refrigerator according to claim 11, characterized in that, The back wall of the refrigerator liner is provided with a mounting plate, and the second evaporator is located on the mounting plate.

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