Sideboard refrigerator
By using a series connection of air-cooled and direct-cooled components in the sideboard refrigerator, independent cooling of the freezer and refrigerator compartments is achieved, solving the problem of odor mixing between the freezer and refrigerator compartments, simplifying the refrigeration system structure, and improving refrigerant utilization efficiency.
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
Existing sideboard refrigerators use a single-system refrigeration cycle, which makes it easy for odors to cross between the freezer and refrigerator compartments, affecting the quality of food storage.
The system employs a series configuration of air-cooled and direct-cooled components. The first evaporator of the air-cooled component in the freezer chamber is connected to the second evaporator of the direct-cooled component on the refrigerator liner. Independent cooling of the freezer and refrigerator chambers is achieved through the series flow of refrigerant. The inclined refrigerant piping and heat-conducting mounting plate further enhance refrigerant utilization efficiency.
It effectively avoids the problem of odor mixing between the freezing and refrigeration chambers, simplifies the structure of the refrigeration system, improves the efficiency of refrigerant utilization, and reduces energy consumption and manufacturing costs.
Smart Images
Figure CN224534582U_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] Sideboard refrigerators typically employ a vertical center placement 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 a single-system refrigeration cycle, the refrigerator and freezer compartments share the same refrigeration cycle system, which makes it difficult to solve the problem of odor mixing between the refrigerator and freezer compartments. Utility Model Content
[0004] This utility model provides a sideboard refrigerator to solve the defect of existing sideboard refrigerators where odors easily mix due to the single-system circulation.
[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 disposed in the freezer compartment. The direct-cooling component includes a second evaporator connected to the refrigerator liner. The first evaporator and the second evaporator are connected in series in the direction of refrigerant flow.
[0006] According to the sideboard refrigerator provided by this utility model, a vertically arranged vertical beam is provided in the middle of the front wall of the freezer inner liner, and a connecting support is provided between the vertical beam and the back wall of the freezer inner liner, and the first evaporator is connected to the connecting support.
[0007] According to the sideboard refrigerator provided by this utility model, the air-cooling component further includes a refrigeration fan, which is located above the first evaporator and is used to drive the cooling air to circulate in the refrigeration chamber.
[0008] 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.
[0009] 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°.
[0010] 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.
[0011] According to the sideboard refrigerator provided by this utility model, the second evaporator includes multiple direct-cooling evaporator modules, which are arranged in parallel with each other, and the multiple direct-cooling evaporator modules are disposed on at least one wall surface of the refrigerator liner.
[0012] According to the sideboard refrigerator provided by this utility model, the second evaporator includes a direct-cooling evaporator module, which is disposed on the back wall of the refrigerator inner liner.
[0013] 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.
[0014] 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 attached to the refrigerator inner liner.
[0015] 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.
[0016] The sideboard refrigerator provided by this utility model achieves independent cooling for both the refrigerator and freezer compartments by connecting direct cooling components to both the refrigerator and freezer compartments, effectively preventing odor mixing between the two. Furthermore, the series connection of the first and second evaporators reduces the overall structural complexity of the refrigerator and improves refrigerant utilization efficiency. Attached Figure Description
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the overall structure of the sideboard refrigerator provided by this utility model.
[0019] Figure 2 This is a rear view structural diagram of the sideboard refrigerator provided by this utility model.
[0020] Figure 3 This is a schematic diagram of the air-cooling component in the sideboard refrigerator provided by this utility model.
[0021] Figure 4 This utility model provides Figure 3 A magnified structural diagram of point A in the middle.
[0022] Figure label:
[0023] 10. Cabinet body; 11. Freezer liner; 111. Freezer chamber; 12. Refrigerator liner; 121. Refrigerator chamber; 20. Air-cooled assembly; 21. First evaporator; 211. Medium inlet pipe; 212. Medium outlet pipe; 22. Refrigeration fan; 23. Connecting support; 30. Direct cooling assembly; 31. Second evaporator; 32. Mounting plate; 40. Refrigerant inlet 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
[0024] 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.
[0025] 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.
[0026] 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.
[0027] 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.
[0028] 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.
[0029] A refrigerator with a sideboard design needs to have a certain capacity while ensuring that the overall size of the refrigerator is not too large. In related technologies, to achieve this, the air-cooling components are placed behind the vertical beams in the freezer compartment, thus reducing the space occupied by the air-cooling components and achieving higher space utilization. These refrigerators often use a single-system cooling method, meaning that the cold air from the air-cooling components is transported to the freezer and refrigerator compartments through air ducts. This can lead to odor mixing and affect the storage quality of food.
[0030] Regarding the problems in related technologies, such as Figures 1-4 As 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 121 and a freezer liner 11 for forming a freezer compartment 111. The refrigeration system includes an air-cooling component 20 and a direct-cooling component 30. The air-cooling component 20 includes a first evaporator 21, which is disposed in the freezer compartment 111. The direct-cooling component 30 includes a second evaporator 31, which is connected to the refrigerator liner 12. The first evaporator 21 and the second evaporator 31 are connected in series in the refrigerant flow direction. Single-system refrigerators share a single cold air circulation system, which can lead to odor mixing between the freezer compartment 111 and the refrigerator compartment 121, affecting the quality of storage. In this example, by setting the direct-cooling component 30 on the refrigerator liner 12, independent refrigeration for freezing and refrigeration is achieved, effectively avoiding odor mixing between the freezer and refrigerator compartments. Furthermore, the series connection reduces the difficulty of setup and manufacturing costs.
[0031] 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 121 for food storage, and the interior of the freezer inner liner 11 defines a freezer compartment 111 for food storage. The refrigeration system also includes a compressor, which is connected in series with the air-cooled component 20 and the direct-cooling component 30 to form a closed-loop circuit for refrigerant flow, and achieves refrigerator cooling through the fan assembly and the direct-cooling component 30.
[0032] The first evaporator 21 is an air-cooled evaporator, located inside the freezer chamber 111. It works in conjunction with a fan, centrifugal fan, and other devices to release cooled air into the freezer chamber 111, 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 121 by directly exchanging heat with the inner liner 12.
[0033] In addition, the refrigeration system should also include a compressor, and connecting pipes connecting the compressor, the first evaporator 21, and the second evaporator 31. The compressor is connected to the first evaporator 21 through the connecting pipes, the first evaporator 21 is connected to the second evaporator 31 through the connecting pipes, and the second evaporator 31 is connected to the compressor, thus forming an overall 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.
[0034] In conventional solutions, cold air is transported to the freezer compartment 111 and the refrigerator compartment 121 via air ducts, and air recirculation is also achieved within the freezer compartment 111 and the refrigerator compartment 121 via air ducts. However, this method is insufficient to solve the problem of odor mixing. This embodiment changes the traditional method of transmitting cold energy via air ducts by directly implementing contact heat exchange through a direct cooling component 30 installed on the refrigerator inner liner 12. This reduces the ambient temperature inside the refrigerator compartment 121, thereby achieving cooling of the refrigerator compartment 121.
[0035] Understandably, the refrigeration chamber 121 requires less cooling energy than the freezing chamber 111. This embodiment connects the first evaporator 21 and the second evaporator 31 in series, utilizing the refrigerant flowing through the first evaporator 21 to cool the refrigeration chamber 121. This improves the utilization rate of cooling energy and reduces the energy consumption of the refrigeration system. Furthermore, directly connecting the second evaporator 31 in series with the first evaporator 21 simplifies the overall structure of the refrigeration system and reduces the overall manufacturing difficulty. In this embodiment, the first evaporator 21 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 freezing chamber 111 and the refrigeration chamber 121, while simplifying the overall structure of the refrigeration system.
[0036] The refrigeration system operates as follows: Refrigerant is introduced into the inlet of the first evaporator 21 through connecting pipes. After entering the first evaporator 21, the refrigerant cools the air, providing cooling energy to the freezer compartment 111. It then exits through the outlet of the first evaporator 21 and enters the second evaporator 31, where it provides cooling energy to the refrigerator compartment 121, thus cooling the refrigerator compartment 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 compartment 111 and the refrigerator compartment 121.
[0037] In conjunction with the above embodiments, a vertically arranged beam is provided in the middle of the front wall of the freezer inner liner 11, and a connecting support 23 is provided between the beam and the back wall of the freezer inner liner 11. The first evaporator 21 is connected to the connecting support 23. The freezer chamber 111 needs to have a certain load-bearing capacity when storing items, which requires a stable structural support inside the freezer inner liner 11. In this embodiment, the setting of the connecting support 23 can provide a stable connection structure for the first evaporator 21, making the overall structure more stable.
[0038] Specifically, the freezer liner 11 is generally square in shape, with the rear side (away from the refrigerator door) defined as the back wall in the depth direction, the front side (closer to the refrigerator door) defined as the front wall in the depth direction, and the two sides defined as the side walls in the width direction. Furthermore, the connecting support 23 divides the freezer chamber 111 into two parallel left and right spaces, thereby improving the overall structural strength and facilitating the categorization and placement of items.
[0039] Understandably, to facilitate the overall layout design of refrigerators, wider refrigerators are usually designed with a double-door structure, that is, separating the freezer compartment 111 and the refrigerator compartment 121 to form left and right storage spaces. In this embodiment, the setting of the connecting support member 23 can achieve the division of the freezer compartment 111 space on the one hand, and make the overall structure more compact and improve the utilization of space on the other hand.
[0040] In conjunction with the above embodiments, the air-cooled assembly 20 also includes a refrigeration fan 22, which is located above the first evaporator 21 and is used to drive the refrigeration air to circulate within the refrigeration chamber 111.
[0041] Specifically, the connecting support 23 is equipped with a refrigeration air inlet and a refrigeration air return outlet. The refrigeration air inlet is spatially connected to the location of the refrigeration fan 22, allowing the refrigerated air to be driven by the refrigeration fan 22 to output cold air from the refrigeration air inlet. The output cold air exchanges heat with the items in the refrigeration chamber 111, thereby cooling the refrigeration chamber 111. The heat-exchanged air flows back through the refrigeration air return outlet, which is located at the bottom of the first evaporator 21, causing the returning air to flow upwards from the bottom of the first evaporator 21, thus achieving cooling during the flow. The first evaporator 21 and the refrigeration fan 22 work together to drive the cold air to circulate, thereby cooling the air circulation loop inside the refrigeration chamber 111. In this embodiment, by placing the refrigeration fan 22 above the first evaporator 21 and connecting the bottom of the first evaporator 21 to the refrigeration air return outlet, effective cooling of the returning air can be achieved, causing it to flow from the bottom of the evaporator upwards, improving cooling efficiency.
[0042] Specifically, during the rotation of the refrigeration fan 22, its blades can drive the airflow in the area and create positive pressure at the refrigeration air outlet to drive the airflow, while creating negative pressure on the side near the first evaporator 21 to absorb the gas cooled by the first evaporator 21, thereby driving the entire cold air cycle.
[0043] In a specific configuration, there is a clearance between the refrigeration fan 22 and the first evaporator 21, 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.
[0044] 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 211 of the first evaporator 21, 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 212 of the first evaporator 21, 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 211 and the medium outlet pipe 212 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 21 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.
[0045] Specifically, such as Figure 3 As shown, the first evaporator 21 has a medium inlet pipe 211 and a medium outlet pipe 212. The medium inlet pipe 211 is used to input refrigerant, and the medium outlet pipe 212 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 211 is a constricted structure. This allows the medium inlet pipe 211 to be pre-positioned inside the capillary tube, facilitating subsequent welding. Similarly, the medium outlet pipe 212 is inserted into the connecting end of the return gas heat exchange tube 50, thus achieving pre-positioning, which also facilitates subsequent welding operations.
[0046] In a specific embodiment, the first evaporator 21 is a finned air-cooled evaporator with an input port and an output port at its top. A medium inlet pipe 211 is connected to the input port, and a medium outlet pipe 212 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 21 behind the vertical beam of the refrigeration chamber 111, thereby enabling the refrigerant to circulate.
[0047] It is understandable that the piping of the first evaporator 21 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.
[0048] In conjunction with the above embodiments, such as Figure 4 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.
[0049] Specifically, the part where the medium inlet pipe 211 is inserted into the refrigerant input pipe 40 is the first connecting pipe section 43, and the part where the medium outlet pipe 212 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.
[0050] 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°.
[0051] 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.
[0052] 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 21. The second refrigerant pipe section 42 is connected to the medium inlet pipe 211. 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 21. The second return gas pipe section 52 is connected to the medium outlet pipe 212. 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 chamber 121 and the freezer chamber 111 in a series circuit.
[0053] 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 21 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 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 21 inside the freezer inner liner 11, thereby achieving pipe connection.
[0054] In specific settings, such as Figure 2 , Figure 3 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 21 and the refrigeration fan 22. The second refrigerant pipe section 42 and the second return gas pipe section 52 are both located within the layout gap.
[0055] 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.
[0056] In the specific connection, the medium inlet pipe 211 of the first evaporator 21 is connected to the output end of the compressor through the refrigerant input pipe (i.e., capillary tube), the medium outlet pipe 212 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.
[0057] 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.
[0058] 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.
[0059] Of course, multiple evaporator modules can also be installed on the same side wall. For example, multiple evaporator modules can be installed on the back wall of the refrigerator liner 12, and the multiple evaporator modules can cover most of the back wall of the refrigerator liner 12, thereby achieving rapid cooling of the refrigerator chamber 121.
[0060] In other embodiments, such as Figure 2 As shown, the second evaporator 31 includes a direct-cooling evaporator module, which is located on the back wall of the refrigerator inner liner 12. The refrigerator compartment 121 has a relatively small cooling capacity requirement, so in actual tests, 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 and reduce the overall manufacturing cost of the refrigerator.
[0061] 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.
[0062] 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.
[0063] 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.
[0064] 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.
[0065] 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.
[0066] 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.
[0067] 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.
[0068] 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 refrigeration chamber 121 and poor overall temperature uniformity. This embodiment limits the refrigerant flow direction of the coil-type direct-cooling evaporator to top to bottom, which effectively solves the problem of cold air settling at the bottom and prevents the bottom temperature from becoming too low.
[0069] 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 121 is achieved through the direct cooling component 30, effectively avoiding odor mixing between the freezer chamber 111 and the refrigerator chamber 121. Furthermore, by connecting the first evaporator 21 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 21 and the refrigerant inlet pipe 40 and the return gas heat exchange pipe 50, the flow of refrigerant is facilitated.
[0070] 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; A refrigeration system, comprising an air-cooled component and a direct-cooled component, wherein the air-cooled component includes a first evaporator disposed in the freezer chamber, and the direct-cooled component includes a second evaporator 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 front wall of the freezing inner liner is provided with a vertically arranged beam, and a connecting support is provided between the beam and the back wall of the freezing inner liner. The first evaporator is connected to the connecting support.
3. The sideboard refrigerator according to claim 2, characterized in that, The air-cooling assembly also includes a refrigeration fan, which is located above the first evaporator and is used to drive the refrigeration air to circulate within the refrigeration chamber.
4. 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.
5. The sideboard refrigerator according to claim 4, 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°.
6. The sideboard refrigerator according to claim 4, 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.
7. The sideboard refrigerator according to any one of claims 1 to 6, characterized in that, The second evaporator includes multiple direct-cooling evaporator modules, which are arranged in parallel with each other and are located on at least one wall of the refrigerator liner.
8. The sideboard refrigerator according to any one of claims 1 to 6, characterized in that, The second evaporator includes a direct-cooling evaporator module, which is located on the back wall of the refrigerator liner.
9. The sideboard refrigerator according to claim 8, 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.
10. The sideboard refrigerator according to claim 9, 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.
11. 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.