Sideboard refrigerator
By installing an air-cooling component on the side wall of the freezer compartment and a direct-cooling component that is directly connected to the refrigerator liner, the problem of air ducts occupying depth space is solved, thereby optimizing the overall thickness of the refrigerator and improving the utilization rate of cold energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI MIDEA REFRIGERATOR CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, the rear-mounted air duct refrigeration system of a single-system refrigerator occupies space in the depth direction of the refrigerator, making it difficult to reduce the overall thickness and affecting space utilization.
The system employs an air-cooled component located on the side wall of the freezer chamber, combined with a direct-cooling component that is directly connected to the refrigerator liner. This avoids the space occupied by the air duct in the depth direction and achieves refrigerant flow through a series of evaporators, simplifying the refrigeration system structure.
It effectively improves the space utilization rate of the refrigerator in the depth direction, reduces the overall thickness, and at the same time improves the cold energy utilization rate and the simplicity of the refrigeration system, thereby reducing energy consumption.
Smart Images
Figure CN224534583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerator manufacturing technology, and in particular to a sideboard refrigerator. Background Technology
[0002] In recent years, the trend of pursuing efficient space utilization in home furnishings has become increasingly prominent, with more and more consumers favoring ultra-thin models when purchasing refrigerators. Single-system refrigerators use a single refrigerant loop to complete the cooling tasks of both the refrigerator and freezer compartments, a method that helps control the overall space occupied by the refrigerator.
[0003] In related technologies, the back-mounted air duct refrigeration system commonly used in single-system refrigerators requires a considerable amount of space to be reserved at the back of the refrigerator for air duct layout and heat dissipation due to its structural characteristics. This inevitably encroaches on the overall depth of the refrigerator body, resulting in low utilization of the internal depth space. Utility Model Content
[0004] This utility model provides a sideboard refrigerator to solve the defect in the prior art where the air duct occupies space in the depth direction, making it difficult to reduce the overall thickness.
[0005] This utility model provides a sideboard refrigerator, including: a cabinet and a refrigeration system; the cabinet includes a refrigerator liner for forming a refrigerator compartment and a freezer liner for forming a freezer compartment; the refrigeration system includes an air-cooling component and a direct-cooling component, the air-cooling component includes a first evaporator, which is disposed on the side wall of the freezer liner on one side in the width direction, and the direct-cooling component includes a second evaporator, which is connected to the refrigerator liner; wherein the first evaporator and the second evaporator are arranged in series in the refrigerant flow direction.
[0006] According to the sideboard refrigerator provided by this utility model, the air-cooling component further includes 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 for installing the first evaporator together with the main frame; the side plate is fixedly disposed on one side edge of the main frame and forms an air inlet channel for connecting the freezing chamber and the installation chamber together with the main frame.
[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 close to the back wall of the refrigeration chamber, and the multiple refrigeration air outlets are evenly spaced along the height direction of the refrigeration chamber.
[0008] 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.
[0009] 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.
[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, the refrigeration system further 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.
[0012] 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°.
[0013] According to the sideboard refrigerator provided by this utility model, the refrigerant input pipe includes a first refrigerant pipe section disposed on the back wall of the freezer inner liner, and a second refrigerant pipe section extending from the back wall of the freezer inner liner to the top space of the first evaporator, the second refrigerant pipe section being connected to the medium inlet pipe; the return gas heat exchange pipe includes a first return gas pipe section disposed at the bottom of the second evaporator, and a second return gas pipe section extending from the back wall of the freezer inner liner to the top space of the first evaporator, the second return gas pipe section being connected to the medium outlet pipe.
[0014] 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.
[0015] 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.
[0016] According to the sideboard refrigerator provided by this utility model, the mounting plate includes a heat-conducting mounting plate, the side of the heat-conducting mounting plate that contacts the refrigerator inner liner is constructed as an adhesive surface, and the heat-conducting mounting plate is adhered to the refrigerator inner liner.
[0017] According to the sideboard refrigerator provided by this utility model, the second evaporator includes a coil-type direct-cooling evaporator in which the refrigerant flows from top to bottom.
[0018] The sideboard refrigerator provided by this utility model, by placing the air-cooling component on the side wall of the freezer compartment and using the direct cooling component for the refrigerator liner, can avoid the space occupation of the air-cooling component in the depth direction, effectively improve the space utilization of the refrigerator in the depth direction, and make the overall thickness of the refrigerator thinner. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This utility model provides an overall structural diagram of a sideboard refrigerator.
[0021] Figure 2 This is a rear view of the internal structure of the sideboard refrigerator provided by this utility model.
[0022] Figure 3 This is an exploded assembly diagram of the air-cooled component in the sideboard refrigerator provided by this utility model.
[0023] Figure 4 This is one of the exploded structural diagrams of the air-cooling component in the sideboard refrigerator provided by this utility model.
[0024] Figure 5 This is the second exploded structural diagram of the air-cooling component in the sideboard refrigerator provided by this utility model.
[0025] 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.
[0026] Figure 7 This utility model provides Figure 6 A magnified structural diagram of point A in the middle.
[0027] Figure label:
[0028] 10. Cabinet; 11. Freezer liner; 12. Refrigerator liner; 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; 223. Sealing cover; 224. Partition support; 23. Side panel; 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
[0029] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] A refrigerator designed for a sideboard needs to have a certain capacity while ensuring that the overall size of the refrigerator is not too large. In related technologies, the refrigerator and its refrigeration and freezing compartments are all cooled by air, and the air ducts are usually constructed on the back wall of the refrigerator in the depth direction X. This makes the refrigerator thicker and occupies more space for the same volume.
[0035] Regarding the problems in related technologies, such as Figures 1-4As shown, this embodiment provides a sideboard refrigerator, including a cabinet 10 and a refrigeration system. The cabinet 10 includes a refrigerator liner 12 for forming a refrigerator compartment and a freezer liner 11 for forming a freezer compartment. The refrigeration system includes an air-cooling component 20 and a direct-cooling component 30. The air-cooling component 20 includes a first evaporator 25, which is disposed on the side wall of the freezer liner 11 on the Y-side of its width. The direct-cooling component 30 includes a second evaporator 31, which is connected to the refrigerator liner 12. The first evaporator 25 and the second evaporator 31 are connected in series in the refrigerant flow direction. Typically, when a refrigerator is cooling, it needs to transport cooled cold air to the freezer and refrigerator compartments through air ducts. This requires air ducts to be installed on the back walls of the freezer liner 11 and the refrigerator liner 12 to deliver cold air to the corresponding compartments. In this embodiment, the air-cooling component 20 and the direct-cooling component 30 are combined so that the air-cooling component 20 is located on one side wall of the freezer chamber in the width direction Y. The second evaporator is directly connected to the refrigerator inner liner 12. This method can effectively avoid the space occupied by the constructed air duct in the depth direction X of the refrigerator, and can significantly reduce the overall thickness of the refrigerator while maintaining the same level of volume.
[0036] Specifically, the refrigerator inner liner 12 is located above the freezer inner liner 11. The interior of the refrigerator inner liner 12 defines a refrigerator compartment for food storage, and the interior of the freezer inner liner 11 defines a freezer compartment for food storage. The refrigeration system also includes a compressor, which, together with the air-cooled component 20 and the direct-cooling component 30, forms a closed-loop circuit for refrigerant flow. The refrigerator achieves refrigeration through the fan assembly and the direct-cooling component 30.
[0037] Among them, such as Figure 2 , Figure 3 As shown, the first evaporator 25 is an air-cooled evaporator, located on the side wall of the freezer chamber on the Y-side of its width. It works in conjunction with a fan or centrifugal fan to release cooled air into the freezer chamber, thereby lowering the internal temperature and maintaining a stable internal temperature. The second evaporator 31 is a direct-cooling evaporator, which cools the freezer chamber by directly exchanging heat with the inner liner 12.
[0038] In addition, the refrigeration system should also include a compressor, and connecting pipes connecting the compressor, the first evaporator 25, and the second evaporator 31. The compressor is connected to the first evaporator 25 through the connecting pipes, the first evaporator 25 is connected to the second evaporator 31 through the connecting pipes, and the second evaporator 31 is connected to the compressor, thus forming a complete circuit. Furthermore, 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.
[0039] Conventional solutions involve constructing air ducts on the back wall of the refrigerator to deliver cold air to the freezer and refrigerator compartments, and also to facilitate air recirculation between them. However, this method results in a thicker refrigerator in the depth direction (X), making it difficult to effectively address the issue of large overall space occupation. Furthermore, in a single refrigeration system, the refrigerator and freezer compartments share the same refrigeration system, leading to odor mixing and 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. This reduces the ambient temperature inside the refrigerator compartment, thus achieving cooling.
[0040] Understandably, the refrigerator compartment requires less cooling energy compared to the freezer compartment. This embodiment connects the first evaporator 25 and the second evaporator 31 in series, utilizing the refrigerant flowing through the first evaporator 25 to cool the refrigerator compartment. This improves the utilization rate of cooling energy and reduces the energy consumption of the refrigeration system. Furthermore, directly connecting the second evaporator 31 to the first evaporator 25 in series simplifies the overall structure of the refrigeration system and reduces overall manufacturing difficulty. In this embodiment, the first evaporator 25 is an air-cooled evaporator, and the second evaporator 31 is a direct-cooling evaporator. Their combined cooling system satisfies the cooling energy requirements of both the freezer and refrigerator compartments, simplifying the overall structure of the refrigeration system. Moreover, by placing the air-cooled component 20 on one side wall of the freezer compartment in the width direction Y, it avoids occupying space in the depth direction X of the refrigerator, improving overall space utilization and optimizing the overall thickness of the refrigerator.
[0041] 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, providing cooling energy to the freezer compartment. 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 compartment, thus cooling the refrigerator compartment. 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 and refrigerator compartments.
[0042] In summary, as described in the above embodiments, Figures 4-6As shown, the air-cooled assembly 20 also includes 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 for mounting the first evaporator 25. The side plate 23 is fixedly disposed on one side edge of the main frame 21 and forms an air inlet channel for connecting the freezing chamber and the installation chamber 211. The air-cooled assembly 20 is used to achieve the refrigeration operation of the internal environment of the freezing chamber. It needs to deliver cold air through the air duct between the chambers. In this embodiment, the air-cooled assembly 20 is disposed on the side wall of the freezing chamber. It can guide and circulate cold air. Through the connection of the inner side plate 22, the installation chamber 211 for mounting the first evaporator 25 is formed inside the main frame 21. The air in the installation chamber 211 can be circulated and refrigerated through the first evaporator 25, thereby providing cooling capacity to the freezing chamber and realizing the circulating cooling flow of the air inside the freezing chamber.
[0043] Specifically, the inner side plate 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. An enclosure structure is integrally formed on the main frame 21. The enclosure structure is located in the middle of the main frame 21 and occupies most of the space of the main frame 21. After the inner side plate 22 is connected to the main frame 21, the space enclosed by the enclosure and the inner side plate 22 together serves as the installation chamber 211 of the first evaporator 25.
[0044] The enclosure has an open return air port 213 at the bottom. The return air in the freezer chamber 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.
[0045] In specific settings, such as Figure 5 As shown, the main frame 21 has a cold air output port 212 on one side of the freezer compartment near the back wall 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 compartment 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 compartment. By setting them on the side wall, the overall thickness of the refrigerator can be effectively reduced, achieving an ultra-thin refrigerator with a large capacity. Furthermore, when cooling the refrigerator compartment, the ambient temperature inside the refrigerator compartment 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 with a large capacity.
[0046] Understandably, the integral molding of the main frame 21 and the fixed connection of the inner side plate 22 and the side plate 23 facilitate the overall installation. Furthermore, this method of integrating the air intake duct and the installation chamber 211 results in a more compact overall structure and better space utilization.
[0047] 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.
[0048] 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. 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.
[0049] In specific settings, such as Figure 5 As shown, the inner side plate 22 has multiple partition supports 224 on its surface in the freezing chamber, and the multiple partition supports 224 are evenly arranged in the vertical direction. Specifically, as shown... Figure 5 As 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.
[0050] In conjunction with the aforementioned inner side plate 22 structure, in a specific implementation, a refrigeration return air inlet 221 is provided at the bottom of the inner side plate 22. The refrigeration return air inlet 221 is located away from the back plate of the refrigeration chamber. The refrigeration return air inlet 221 is connected to the return air port 213 to realize the return air gas in the refrigeration chamber to flow back into the refrigeration cycle component.
[0051] 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.
[0052] It is understandable that the cold air gradually absorbs heat and sinks in the refrigeration chamber. After its inner side plate 22 is connected to the main frame 21, it itself serves as the inner wall of the refrigeration chamber. The bottom of the inner side plate 22 is also the bottom of the refrigeration chamber. By setting the refrigeration return air vent 221 at the bottom position, the refrigeration chamber can be effectively cooled, and the stability of the return flow can also be improved.
[0053] In conjunction with the above embodiments, multiple refrigeration air inlets 215 are provided on the air inlet channel. These inlets 215 are positioned close to the back panel of the refrigeration chamber and are evenly spaced along the height Z direction of the refrigeration chamber. Since temperatures may vary in different areas within the refrigeration chamber, this embodiment utilizes multiple refrigeration air inlets 215 to deliver cooled air to different levels of the refrigeration chamber, achieving uniform airflow and improving cooling quality.
[0054] Specifically, each refrigeration air inlet 215 is connected to the air inlet channel, and each partition has a corresponding refrigeration air inlet 215. This design enables effective cooling of the space corresponding to each partition, improving cooling uniformity and achieving efficient cooling of each layer of the refrigeration chamber. 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 and improving the uniformity of cold air distribution.
[0055] In a specific configuration, the refrigeration air outlet 215 can be formed on the wall of the refrigeration chamber to deliver cold air. In a preferred embodiment, it is formed directly through the connection between the main frame 21 and the side plate 23. 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.
[0056] In conjunction with the above embodiments, the air-cooled assembly 20 also 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. 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, thereby achieving air circulation within the refrigeration chamber and stabilizing the temperature within the refrigeration chamber.
[0057] Specifically, a refrigeration air supply vent 215 and a refrigeration air return vent 221 are provided within the main frame 21. The refrigeration air supply vent 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 through the refrigeration air supply vent 215. The output cold air exchanges heat with the items inside the refrigeration chamber, thus cooling the refrigeration chamber. The heat-exchanged air flows back through the refrigeration air return vent 221, which is located at the bottom of the first evaporator 25, causing the returning air to flow upwards from the bottom 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.
[0058] 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.
[0059] 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.
[0060] In a specific configuration, there is a clearance between the refrigeration fan 24 and the first evaporator 25, and a portion of the piping within the refrigeration 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.
[0061] In some embodiments, the refrigeration system further 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 position. 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 position, and 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 as constricted sections, while the connection ends of the refrigerant inlet pipe 40 and the return gas heat exchange pipe 50 are both constructed as flared sections. The constricted and flared sections are connected in a coordinated manner. Due to limited space, the connection position of the pipes in the first evaporator 25 is difficult to determine during the connection process. In this embodiment, the use of flared and constricted sections facilitates pipe connection and reduces the difficulty of positioning the connection.
[0062] Specifically, such as Figure 6 , Figure 7 As shown, 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 refrigerant, and the medium outlet pipe 252 is used to output refrigerant after heat exchange. The refrigerant inlet pipe 40 is a capillary tube. One end of the capillary tube is connected to the output port of the compressor, and the other end of the capillary tube is a connecting end. This connecting end is configured with a flared structure, while the connecting end of the medium inlet pipe 251 is a constricted structure. This allows the medium inlet pipe 251 to be pre-positioned inside the capillary tube, facilitating subsequent welding. Similarly, the medium outlet pipe 252 is inserted into the connecting end of the return gas heat exchange tube 50, thus achieving pre-positioning, which also facilitates subsequent welding operations.
[0063] In a specific implementation, 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 and connect to the first evaporator 25 on the rear side of the vertical beam of the refrigeration chamber, thereby enabling the refrigerant to circulate.
[0064] 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.
[0065] 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.
[0066] 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.
[0067] 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°.
[0068] 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.
[0069] In conjunction with the above embodiments, the refrigerant inlet 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 inlet 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 to transfer the remaining cooling capacity of the refrigerant to the second evaporator 31, thereby realizing the refrigeration effect of the refrigerator compartment and the freezer compartment in a series loop.
[0070] 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, thus forming the second refrigerant pipe section 42. The overall diameter of the refrigerant input pipe 40 is relatively small, which allows for pressure reduction and flow regulation of the refrigerant as 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, as the main section of the return gas heat exchange pipe 50, 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.
[0071] 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.
[0072] 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.
[0073] 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.
[0074] 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 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.
[0075] 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 compartment.
[0076] 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. This method ensures that the direct cooling component 30 does not affect the utilization of the depth space of the refrigerator compartment, which is beneficial to the overall space utilization of the refrigerator.
[0077] In other embodiments, such as Figure 2 As shown, the second evaporator 31 is located on the back wall of the refrigerator liner 12. The refrigerator compartment 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. 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.
[0078] 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 refrigerator cavity. In practice, 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 refrigerator cavity.
[0079] 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.
[0080] Specifically, the mounting plate 32 is a plate structure that is fixedly connected to the refrigerator inner liner 12 and located on the back wall of the refrigerator 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-like structure, it can fit snugly against the refrigerator inner liner 12 to achieve surface contact. The second evaporator 31 achieves heat exchange with the refrigerator inner liner 12 through the mounting plate 32, thereby effectively cooling the refrigerator compartment.
[0081] 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.
[0082] 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.
[0083] 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.
[0084] 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 flow from top to bottom, uniform cooling of the refrigeration chamber can be achieved.
[0085] 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 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, combined with the air-cooling component 20 located on the side wall of the freezer compartment, this avoids occupying space in the depth direction X of the refrigerator, improving the space utilization rate of the refrigerator.
[0086] Through the above description of the embodiments, those skilled in the art can clearly understand that in each embodiment, by connecting the direct cooling component 30 to the refrigerator inner liner 12, independent cooling of the refrigerator chamber is achieved through the direct cooling component 30. The air-cooling component 20, located on the side wall of the freezer chamber, effectively avoids space occupation in the depth direction X, and also effectively avoids the problem of odor mixing between the freezer and refrigerator chambers. Furthermore, by connecting the first evaporator 25 and the second evaporator 31 in series, the complexity of the refrigeration system is simplified, and the overall manufacturing cost is reduced. 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.
[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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. Such 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 this utility model.
Claims
1. A sideboard refrigerator, characterized in that, include: The cabinet includes a refrigeration liner for forming a refrigeration chamber and a freezing liner for forming a freezing chamber; The refrigeration system includes an air-cooled component and a direct-cooled component. The air-cooled component includes a first evaporator, which is disposed on the side wall of the freezer chamber on one side in the width direction. The direct-cooled component includes a second evaporator, which is connected to the refrigerator liner. The first evaporator and the second evaporator are connected in series in the direction of refrigerant flow.
2. The sideboard refrigerator according to claim 1, characterized in that, The air-cooled assembly also includes 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 together with the main frame forms an installation chamber for installing the first evaporator; the side plate is fixedly disposed on one side edge of the main frame and together with the main frame forms an air inlet channel for connecting the freezing chamber and the installation chamber.
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 wall of the refrigeration chamber and are evenly spaced along the height of the refrigeration chamber.
4. The sideboard refrigerator according to claim 2, 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.
5. The sideboard refrigerator according to claim 2, characterized in that, A process window is provided on the inner side plate, and the process window is detachably connected to a sealing cover.
6. The sideboard refrigerator according to claim 2, 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, The refrigeration system further 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 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.
8. The sideboard refrigerator according to claim 7, 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°.
9. The sideboard refrigerator according to claim 7, characterized in that, The refrigerant inlet pipe includes a first refrigerant pipe section disposed on the back wall of the freezer inner liner, and a second refrigerant pipe section extending from the back wall of the freezer inner liner to the top space of the first evaporator, the second refrigerant pipe section being connected to the medium inlet pipe; The return gas heat exchange tube includes a first return gas pipe section located at the bottom of the second evaporator, and a second return gas pipe section extending from the back wall of the refrigeration inner liner into the top space of the first evaporator. The second return gas pipe section is connected to the medium outlet pipe.
10. The sideboard refrigerator according to claim 1, characterized in that, The second evaporator is located on the back wall of the refrigerator liner.
11. The sideboard refrigerator according to claim 10, 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.
12. The sideboard refrigerator according to claim 11, characterized in that, The mounting plate includes a heat-conducting mounting plate, the side of which contacts the refrigerator inner liner is configured as an adhesive surface, and the heat-conducting mounting plate is adhered to the refrigerator inner liner.
13. The sideboard refrigerator according to claim 1, characterized in that, The second evaporator includes a coil-type direct-cooling evaporator in which the refrigerant flows from top to bottom.