The cooling chamber is located at the lower part of the inner freezing liner

Abstract

The application provides a refrigerator with a cooling chamber located at the lower part of the inner side of a freezing liner, comprising a cabinet, wherein the cabinet comprises a storage liner, the storage liner comprises a freezing liner located at the lower part, and the lower part of the inner side of the freezing liner defines a cooling chamber; an evaporator is arranged in the cooling chamber, the cooling chamber occupies the lower space inside the freezing liner, can effectively raise the position of the freezing chamber above the cooling chamber in the freezing liner, reduce the bending degree of a user when taking and placing articles in the freezing chamber, and improve the use experience of the user. A centrifugal fan is located in the cooling chamber and is arranged at the rear side of the evaporator in a backward inclined manner, so as to reduce the height of the centrifugal fan, reduce the space occupied by the cooling chamber, thereby increasing the space above the cooling chamber in the freezing liner, and the storage liner defines a storage compartment above the cooling chamber.

Description

[0001] This application is a divisional application of Chinese patent application No. 201810333247.3, filed on April 13, 2018, entitled "Refrigerator with cooling compartment located in the lower inner part of the freezer liner". Technical Field

[0002] This invention relates to the field of home appliance technology, and in particular to a refrigerator whose cooling compartment is located in the lower part of the inner side of the freezer liner. Background Technology

[0003] For integrated kitchen cabinets, built-in refrigerators are often used to enhance the aesthetics and overall appearance of the cabinets. However, the space occupied by built-in refrigerators is limited, so the structural design of the refrigerator needs to focus on the rational allocation of space between the refrigerator and other equipment.

[0004] In existing refrigerators, the freezer compartment is generally located at the bottom of the refrigerator, the evaporator is located at the rear of the freezer compartment outside, and the compressor compartment is located at the lower rear of the freezer compartment. The freezer compartment needs to make way for the compressor compartment, resulting in an irregular shape for the freezer compartment and limiting its depth. Summary of the Invention

[0005] In view of the above problems, one object of the present invention is to provide a refrigerator in which the cooling compartment is located at the lower inner side of the freezing liner, which overcomes or at least partially solves the above problems.

[0006] This invention provides a refrigerator with a cooling compartment located at the lower inner side of the freezer liner, comprising:

[0007] The cabinet includes a storage liner, which includes a freezer liner located at the bottom, and a cooling chamber is defined on the lower inner side of the freezer liner.

[0008] The evaporator is located in the cooling chamber;

[0009] A centrifugal fan is located in the cooling chamber and is installed at a backward tilt behind the evaporator to reduce the installation height of the centrifugal fan. The centrifugal fan is configured to direct the cold airflow cooled by the evaporator to the storage chamber.

[0010] Optionally, the centrifugal fan includes a casing and an impeller disposed within the casing near the front end;

[0011] The casing extends upwards from front to back, with a cold air inlet on its upper surface corresponding to the position of the impeller, and a cold air outlet at its rear end. The tilt direction of the impeller is parallel to the tilt direction of the casing.

[0012] The refrigerator also includes a freezer air duct, which extends vertically upward along the rear wall of the freezer liner, and the lower end of the freezer air duct is connected to the cold air outlet at the rear of the casing to deliver the cold air flow after heat exchange with the evaporator.

[0013] Optionally, the angle between the upper surface of the housing and the vertical plane ranges from 55° to 70°.

[0014] Optionally, the angle between the lower surface of the housing and the refrigeration air duct ranges from 120° to 135°.

[0015] Optionally, the horizontal distance between the front end face of the casing and the rear end face of the evaporator can range from 15 mm to 25 mm.

[0016] Optionally, the storage compartment includes a freezer compartment defined by the freezer liner and located directly above the cooling compartment, and a variable temperature compartment located directly above the freezer compartment;

[0017] The refrigeration air supply duct has an air outlet connecting the refrigeration chamber and an air outlet connecting the variable temperature chamber.

[0018] Optionally, the refrigerator also includes:

[0019] The rear open cover covers the bottom of the freezer liner, defining the cooling chamber together with the rear and bottom walls of the freezer liner.

[0020] A return air vent is formed on the upper front side of the cover plate so that the return air from the freezer and variable temperature chambers can flow through the return air vent to the cooling chamber for recooling.

[0021] Optionally, the refrigerator also includes:

[0022] A stepped baffle plate, arranged from front to back, is located below the upper surface of the cover plate and positioned above the evaporator. The baffle plate includes:

[0023] The front panel section is spaced apart from the upper surface of the evaporator so that some of the return airflow can enter the space between the front panel section and the upper surface of the evaporator to exchange heat with the evaporator.

[0024] The rear panel section is connected to the rear end of the front panel section and is attached to the upper surface of the evaporator to avoid the formation of a gap between the rear panel section and the upper surface of the evaporator, which would cause some of the return airflow to pass through the gap without passing through the evaporator.

[0025] The space between the wind deflector and the lower surface of the cover is filled with windproof foam to prevent some of the return airflow from entering the space between the wind deflector and the upper surface of the cover without passing through the evaporator.

[0026] Optionally, the storage liner may also include a refrigerator liner located above the freezer liner;

[0027] The storage compartment also includes a refrigerated compartment defined by the refrigerated inner liner;

[0028] The refrigerator also includes a refrigeration air duct, which is located on the inner side of the rear wall of the refrigeration liner. Its inlet is connected to and communicates with the outlet of the freezer air duct. It has an air outlet that communicates with the refrigerator compartment to deliver cold air to the refrigerator compartment.

[0029] Optionally, the refrigerator also includes:

[0030] Two return air ducts are respectively located on the horizontal sides of the storage liner. Each return air duct connects to the refrigerator compartment and the cooling compartment at both ends, so as to transport the return airflow from the refrigerator compartment to the cooling compartment for re-cooling.

[0031] The refrigerator of this invention features a cooling chamber located in the lower inner part of the freezer liner. This cooling chamber, occupying the lower space within the freezer liner, effectively raises the position of the storage compartment above the cooling chamber (e.g., the freezer compartment above the cooling chamber), reducing the bending required for users to access items and improving the user experience. Furthermore, the centrifugal fan is angled backwards behind the evaporator, reducing its installation height and the vertical space it occupies, thereby minimizing the vertical space occupied by the cooling chamber and ensuring sufficient storage capacity in the upper storage compartment.

[0032] Furthermore, the cooling chamber of the present invention is located in the refrigerator at the lower inner side of the freezing liner, and the centrifugal fan has a special design structure that can reduce wind loss and ensure air delivery efficiency.

[0033] Furthermore, the cooling chamber of the present invention is located in the refrigerator at the lower inner side of the freezing liner, and a specially constructed baffle is provided on the upper part of the evaporator. When the front end of the evaporator is frosted, the return airflow can enter the gap between the front section of the baffle and the upper surface of the evaporator to exchange heat with the evaporator, cool down and form a cold airflow, and ensure a continuous supply of cold airflow.

[0034] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0035] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0036] Figure 1 This is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0037] Figure 2 This is an exploded view of a refrigerator according to an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the refrigerator door, the variable temperature drawer and the freezer drawer are omitted;

[0039] Figure 4 yes Figure 3 The exploded view of the structure shown is shown, in which the two side panels of the box are hidden;

[0040] Figure 5 This is a schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the structure of the refrigerator door, the variable temperature drawer, the freezer drawer and the cover is omitted to show the components disposed inside the cooling compartment;

[0041] Figure 6 This is a partial cross-sectional view of a refrigerator according to an embodiment of the present invention;

[0042] Figure 7 yes Figure 6 A partial schematic diagram;

[0043] Figure 8 This is a schematic diagram of a centrifugal fan and a refrigeration air duct for a refrigerator according to an embodiment of the present invention;

[0044] Figure 9 This is a partial schematic diagram of a refrigerator according to an embodiment of the present invention, showing the structure of the bottom of the refrigerator body;

[0045] Figure 10 This is a partial schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the side panels of the refrigerator body are omitted to show the structure of the inner bottom of the refrigerator body;

[0046] Figure 11 This is a schematic diagram of the bottom structure of a refrigerator according to an embodiment of the present invention, wherein the side panels of the refrigerator body are omitted; and

[0047] Figure 12 yes Figure 11 An exploded view of the structure shown. Detailed Implementation

[0048] like Figures 1 to 4As shown, this embodiment first provides a refrigerator 10 in which the cooling chamber 133 is located inside the lower part of the freezing inner liner 130. The refrigerator 10 generally includes a cabinet 100, which includes an outer shell 110 and a storage inner liner disposed inside the outer shell 110. The space between the outer shell 110 and the storage inner liner is filled with insulation material (forming a foam layer). The storage inner liner defines a storage compartment. The storage inner liner generally includes a freezing inner liner 130, a refrigerator inner liner 120, etc. The freezing inner liner 130 is located above the refrigerator inner liner 120. The storage compartment includes a freezing compartment 132 defined by the freezing inner liner 130 and a refrigerator compartment 121 defined by the refrigerator inner liner 120.

[0049] As those skilled in the art will recognize, the refrigerator 10 of this embodiment may also include an evaporator 101, a blower, a compressor 104, a condenser 105, and a throttling element (not shown). The evaporator 101 is connected to the compressor 104, the condenser 105, and the throttling element via a refrigerant line to form a refrigeration cycle loop. It cools the air flowing through it when the compressor 104 is started.

[0050] Specifically, in this embodiment, as Figures 1 to 4 As shown, the freezer inner liner 130 is located at the lower part of the cabinet, and a cooling chamber 133 is defined on its lower inner side. The evaporator 101 is disposed in the cooling chamber 133. The blower is a centrifugal fan 103, which is disposed in the cooling chamber 133 and located behind the evaporator 101. The storage inner liner defines a storage compartment located above the cooling chamber 133. The centrifugal fan is configured to cause the cold airflow cooled by the evaporator 101 to flow to the storage compartment.

[0051] In some embodiments, the storage compartment includes a freezer compartment 132 defined within a freezer liner 130 and located directly above a cooling compartment 133, and a variable temperature compartment 131 located directly above the freezer compartment 132. Both the variable temperature compartment 131 and the freezer compartment 132 are drawer-type structures. Figure 2 and combined Figure 3 As shown, a variable temperature compartment 131 has a drawer door 137 on its front side for opening or closing, and a freezer compartment 132 has a drawer door 138 on its front side for opening or closing. A refrigerator liner 120 is located above the freezer liner 130. The storage compartment includes a refrigerator compartment 121 defined by the refrigerator liner 120, and a refrigerator door 136 is provided on the front side of the refrigerator compartment 121 for opening or closing.

[0052] As is well known to those skilled in the art, the temperature in the refrigerator compartment 121 is generally between 2°C and 10°C, preferably between 4°C and 7°C. The temperature range in the freezer compartment 132 is generally between -22°C and -14°C. The variable temperature compartment 131 can be adjusted to between -18°C and 8°C. Different types of items have different optimal storage temperatures and suitable storage locations. For example, fruits and vegetables are suitable for storage in the refrigerator compartment 121, while meat is suitable for storage in the freezer compartment 132.

[0053] In particular, such as Figures 5 to 7 As shown, in this embodiment, the centrifugal fan 103 is arranged at a rearward inclination behind the evaporator 101. That is, the top of the centrifugal fan 103 is further forward than the bottom, so that the centrifugal fan 103 is in a rearward inclination posture. This reduces the arrangement height of the centrifugal fan 103, reduces the height space occupied by the centrifugal fan 103, and thus reduces the height space occupied by the cooling chamber 133, ensuring the storage volume of the storage room above the cooling chamber 133.

[0054] In traditional refrigerators, the freezer compartment is typically located at the bottom, making it low and requiring users to bend over or squat significantly to access items, which is inconvenient, especially for the elderly. This embodiment addresses this by placing the cooling chamber 133 within the lower space of the freezer liner. This increases the height of the freezer compartment 132, reducing the bending required for access and improving the user experience. Furthermore, by tilting the centrifugal fan 103 backward, the space occupied by the cooling chamber 133 is reduced, increasing the space above the cooling chamber 133 in the freezer liner 130 for the freezer compartment 132 and the variable temperature compartment 131.

[0055] In some embodiments, such as Figure 4 , 5 As shown, the evaporator 101 is a flat, cubic shape placed horizontally in the cooling chamber 133. Specifically, the long and wide sides of the evaporator 101 are parallel to the horizontal plane, while the thickness side is perpendicular to the horizontal plane. The evaporator 101 is parallel to the ground, and its thickness is significantly smaller than its length. By placing the evaporator 101 horizontally in the cooling chamber 133, the evaporator 101 avoids occupying excessive space, ensuring the storage capacity of the freezer compartment 132 and the variable temperature compartment 131 above the cooling chamber 133.

[0056] The centrifugal fan 103 includes a casing 103a and an impeller 103b disposed within the casing 103a near its front end. The casing 103a extends upward at an angle from front to back, and a cold air inlet is formed on its upper surface at a position corresponding to the impeller 103b, while a cold air outlet is formed at its rear end. The inclination direction of the impeller 103b is parallel to the inclination direction of the casing 103a.

[0057] The refrigerator 10 also includes a freezer air duct 141, which extends vertically upward along the rear wall of the freezer inner liner 130. The lower end of the freezer air duct 141 is connected to and communicates with the cold air outlet at the rear end of the casing 103a. The freezer air duct 141 has an air outlet 141a communicating with the freezer compartment 132 and an air outlet 141b communicating with the variable temperature compartment 131, so as to deliver the cold air after heat exchange with the evaporator 101 to the freezer compartment 132 and the variable temperature compartment 131 respectively, so as to keep the freezer compartment 132 at the corresponding temperature and keep the variable temperature compartment 131 at the corresponding temperature.

[0058] In some embodiments, see Figure 6 The angle β between the upper surface 103a-2 of the casing 103a and the vertical plane ranges from 55° to 70°. This arrangement of the centrifugal fan 103 reduces the vertical space occupied by the fan while minimizing airflow loss, thus ensuring both a compact spatial layout and efficient air delivery. Furthermore, the tilt direction of the impeller 103b is approximately parallel to the tilt direction of the casing 103a, ensuring that the air outlet path of the casing 103a behind the impeller 103b is roughly parallel to the impeller 103b. This prevents airflow congestion at the outlet of the centrifugal fan 103, further guaranteeing air delivery efficiency and reducing airflow noise.

[0059] The angle μ between the lower surface 103a-1 of the housing 103a and the refrigeration air supply duct 141 ranges from 120° to 135°. By limiting the housing 103a to the above arrangement, the air volume loss caused by the housing 103a turning to the refrigeration air supply duct 141 can be reduced, while making way for the lower right part of the freezer compartment 132.

[0060] The horizontal distance α between the front end face of the casing 103a and the rear end face of the evaporator 101 is in the range of 15 mm to 25 mm. This is to prevent the evaporator 101 from being frosted over due to the small distance between the centrifugal fan 103 and the evaporator 101, which would cause the evaporator 103 to be frosted over.

[0061] See Figure 4 and Figure 5The refrigerator 10 also includes a refrigeration air supply duct 142, the inlet 142b of which is connected to and communicates with the outlet 141d of the freezer air supply duct 141. The refrigeration air supply duct 142 also has an air outlet 142a that communicates with the refrigerator compartment 121 to deliver cold air to the refrigerator compartment 121 and keep the refrigerator compartment 121 at the corresponding temperature.

[0062] A connecting duct (not shown) is provided between the refrigerated air supply duct 142 and the frozen air supply duct 141. The inlet 142b of the refrigerated air supply duct 142 is connected and communicates with the outlet 141d of the frozen air supply duct 141 through the connecting duct.

[0063] A return air duct 150 is provided on each of the two horizontal sides of the storage liner. That is, the refrigerator 10 has two return air ducts 150 respectively located on the two horizontal sides of the storage liner. Each return air duct 150 connects to the refrigerator compartment 121 and the cooling compartment 133 at both ends, respectively, to transport the return airflow from the refrigerator compartment 121 to the cooling compartment 133 for recooling. Figure 6 , 7 As shown, the cooling chamber 133 has a refrigerated return air inlet 102b that communicates with the return air duct 150. The return airflow of the refrigerated chamber 121 is recirculated back into the cooling chamber 133 through the return air duct 150 and the refrigerated return air inlet 102b.

[0064] In some embodiments, such as Figure 2 , 3 and combined Figure 4 , Figure 6 and Figure 7 As shown, a rear-opening cover plate 102 is provided inside the freezer inner liner 130. The cover plate 102 covers the bottom of the freezer inner liner 130 and, together with the rear wall and bottom wall of the freezer inner liner 130, defines the cooling chamber 133.

[0065] Specifically, in this embodiment, a return air vent 102a is formed on the upper front side of the cover plate 102, allowing the return airflow from the freezer compartment 132 and the variable temperature compartment 131 to flow through the return air vent 102a into the cooling chamber 133 to re-exchange heat with the evaporator 101, forming a cold airflow. In this embodiment, by forming a return air vent 102a on the upper front side of the cover plate 102, the return airflow from the freezer compartment 132 and the variable temperature compartment 131 flows through the return air vent 102a into the cooling chamber 133, eliminating the need for an additional freezer return air duct to transport the return airflow from the freezer compartment 132 and the variable temperature compartment 131, thus simplifying the overall structure of the refrigerator 10.

[0066] See you again Figure 6 and Figure 7The refrigerator 10 also includes a stepped baffle 139 that runs from front to back. The baffle 139 is located below the upper surface of the cover 102 and is disposed on the upper part of the evaporator 101. The baffle plate 139 includes a front plate section 139a and a rear plate section 139b connected to the rear end of the front plate section 139a. The front plate section 139a is spaced apart from the upper surface of the evaporator 101, thereby forming a gap space between the front plate section 139a and the upper surface of the evaporator 101. A portion of the return airflow delivered to the cooling chamber 133 through the return air inlet 102a and the return air duct 190 enters the gap space between the front plate section 139a and the upper surface of the evaporator 101 to exchange heat with the evaporator 101, thereby increasing the heat exchange area between the return airflow and the evaporator 101. Furthermore, when the front end face of the evaporator 101 is frosted, the return airflow can enter the gap space between the front plate section 139a and the upper surface of the evaporator 101 to exchange heat with the evaporator 101, cooling down to form a cold airflow, thus ensuring a continuous supply of cold airflow.

[0067] The rear plate section 139b is tightly attached to the upper surface of the evaporator 101 to prevent a gap from forming between the rear plate section 139b and the upper surface of the evaporator 101. If a gap were formed between the rear plate section 139b and the upper surface of the evaporator 101, an airflow channel would be created between the baffle plate 139 and the upper surface of the evaporator 101. Part of the return airflow would then flow directly through this airflow channel to the rear of the evaporator 101 without exchanging heat with it. This would mean that, under the action of the centrifugal fan 103, the air would be transported by the refrigeration air duct and the cold storage air duct 142 to the storage compartment above the cooling chamber 133, thus affecting the temperature of the storage compartment. Therefore, in this embodiment, by tightly attaching the rear plate section 139b to the upper surface of the evaporator 101, a gap is prevented from forming between the rear plate section 139b and the upper surface of the evaporator 101, thus preventing part of the return airflow from passing through this gap without exchanging heat with the evaporator 101.

[0068] Furthermore, the space between the baffle plate 139 and the lower surface of the cover plate 102 should be filled with windproof foam 139d to prevent the return airflow from entering the space between the baffle plate 139 and the upper surface of the cover plate 102. This prevents some return airflow from entering the space between the baffle plate 139 and the upper surface of the cover plate 102 without passing through the evaporator 101. Figure 6 As shown, the windproof foam 139d is located between the evaporator 101 and the cover plate 102, thereby preventing some of the return airflow from bypassing the evaporator 101.

[0069] like Figure 2 , Figure 6 and Figure 10 As shown, the bottom of the cabinet 100 is located behind the cooling chamber 133 and defines the compressor compartment 180. That is to say, the compressor compartment 180 is located on the lower rear side of the refrigeration inner liner 130 and opposite to the cooling chamber 133. The rear of the cooling chamber 133 can be directly behind or below the cooling chamber 133.

[0070] In traditional refrigerators, the compressor compartment is typically located at the rear of the freezer compartment at the bottom of the cabinet. This inevitably results in an irregularly shaped freezer compartment to accommodate the compressor, reducing its storage capacity. To maintain a certain storage capacity, the freezer compartment's depth is usually increased, leading to several inconveniences. First, as mentioned earlier, users need to bend over significantly when placing items in a deeper freezer, which is particularly inconvenient for the elderly. Second, items need to be stacked vertically, making it difficult to find them, and items at the bottom are easily obscured, leading to forgetting, spoilage, and waste. Third, because the freezer compartment is irregularly shaped (not a rectangular space), it's inconvenient to place larger, difficult-to-divide items there.

[0071] In this embodiment of the refrigerator 10, a cooling chamber 133 is defined at the lower part of the freezing inner liner 130, and a compressor compartment 180 is defined at the rear lower side of the freezing inner liner 130 behind the cooling chamber 133. The portion of the freezing inner liner 130 corresponding to the cooling chamber 133 provides space for the compressor compartment 180, so that the freezer compartment 132 above the cooling chamber 133 is a rectangular space. This allows items to be stored flat instead of stacked, making it easier for users to find items and saving them time and effort. At the same time, it is also convenient to place large, difficult-to-divide items, solving the problem of not being able to place large items in the freezer compartment 132. In addition, as mentioned above, the overall height of the freezer compartment 132 above the cooling chamber 133 is raised, reducing the bending required for users and making it easier for them to operate.

[0072] In some embodiments, see Figure 10 The bottom wall of the refrigeration liner 130 includes a horizontal wall 134 and an inclined wall 135 extending backward and upward from the horizontal wall 134. The horizontal wall 134 forms the bottom wall of the cooling chamber 133, and the inclined wall 135 forms the rear wall of the cooling chamber 133. The compressor compartment 180 is located on the lower rear side of the inclined wall 135. The inclined wall 135 is designed to provide clearance space for the compressor compartment.

[0073] like Figures 9 to 12 As shown, compressor 104, cooling fan 106 and condenser 105 are arranged laterally (e.g., Figure 1 , Figure 2 and Figure 9 The air inlets (as shown in the transverse direction) are arranged sequentially at intervals within the compressor chamber 180. The bottom of the housing 100 has transversely spaced air inlets 110a (e.g., as shown in the transverse direction). Figure 9 As shown, the air inlet 110a is located on the left side laterally) and the air outlet 110b (for example, as shown) Figure 9As shown, the air outlet 110b is located on the right side (laterally). The air inlet 110a corresponds to the condenser 105 to connect the condenser 105 to the external space, and the air outlet 110b corresponds to the compressor 104 to connect the compressor 104 to the external space. The cooling fan 106 is configured to allow external air to enter the condenser 105 through the air inlet 110a, then enter the compressor 104 through the condenser 105, and finally be discharged to the external space through the air outlet 110b, thereby dissipating heat from the compressor 104. In the vapor compression refrigeration cycle, the surface temperature of the condenser 105 is generally lower than the surface temperature of the compressor 104. Therefore, in the above process, the external air first cools the condenser 105 and then cools the compressor 104.

[0074] The refrigerator 10 of this invention is preferably used in built-in cabinets or other storage spaces to save space. To improve the overall aesthetics of the refrigerator 10 and reduce its space occupation, the reserved space between the rear wall of the refrigerator 10 and the storage space or cabinet is relatively small. This results in low heat dissipation efficiency of the front and rear air intake / exhaust methods used in the prior art. If heat dissipation is to be guaranteed, the distance between the rear wall of the refrigerator 10 and the storage space or cabinet must be increased, thus increasing the space occupied by the refrigerator 10. However, the refrigerator 10 of this embodiment, by forming horizontally spaced air inlets 110a and air outlets 110b at the bottom of the cabinet 100, allows the heat dissipation airflow to circulate at the bottom of the refrigerator 10, fully utilizing the space between the refrigerator 10 and the supporting surface. This eliminates the need to increase the distance between the rear wall of the refrigerator 10 and the cabinet, reducing the space occupied by the refrigerator 10 while improving heat dissipation efficiency.

[0075] In some embodiments, the condenser 105 may be arranged at an angle, such as... Figure 12 As shown, the condenser 105 is inclined from bottom to top in a direction that gradually moves away from the compressor 104, thereby increasing the heat dissipation area of ​​the condenser 105 within the limited space of the compressor compartment.

[0076] In some embodiments, such as Figures 9 to 12As shown, the outer casing 110 also includes a bottom plate, a support plate 112, two vertically extending side plates 111, and a vertically extending back plate 116. The bottom plate includes a bottom horizontal section 113 located at the front of the bottom, a first inclined section 114 extending backward and upward from the rear end of the bottom horizontal section 113, a second inclined section 118 extending backward and upward from the rear end of the first inclined section 114, and a top horizontal section 115 extending backward from the rear end of the second inclined section 118. The top horizontal section 115 forms the top wall of the compressor compartment 180. The support plate 112 is located below the top horizontal section 115 and forms the bottom wall of the compressor compartment 180. The compressor 104, the cooling fan 106, and the condenser 105 are arranged laterally on the support plate 112 at intervals. The support plate 112 is spaced apart from the bottom horizontal section 113 so that the space between the front end of the support plate 112 and the rear end of the bottom horizontal section 113 forms an air vent communicating with the external space.

[0077] See Figure 9 Two vertically extending side panels 111 form two side walls in the transverse direction of the housing, thereby closing the two sides of the housing in the transverse direction. The lower parts of the two side panels 111 form two side walls in the transverse direction of the press chamber 180. The back panel 116 extends downward from the rear end of the top horizontal section 115 to the rear end of the support plate 112, and forms the rear wall of the press chamber 180.

[0078] A separator 117 is provided at the rear of the middle of the first inclined section 114. The rear of the separator 117 is connected to the cooling fan 106, thereby dividing the space between the tray 112 and the bottom horizontal section 113 (that is, the aforementioned air vent) into an air inlet 110a and an air outlet 110b.

[0079] In traditional refrigerators, the bottom of the cabinet typically has a roughly flat support plate, with the compressor located inside the support plate. Vibrations generated during compressor operation significantly impact the bottom of the cabinet. In this embodiment, as mentioned earlier, the bottom of the outer casing 110 is constructed as a three-dimensional structure using a specially structured base plate and a support plate 112. This provides an independent three-dimensional space for the compressor 104, and the support plate 112 supports the compressor 104, reducing the impact of compressor 104 vibrations on other components at the bottom of the cabinet. Furthermore, by designing the outer casing 110 with this ingenious special structure, the bottom of the refrigerator 10 is compact and rationally laid out, reducing the overall volume of the refrigerator 10. Simultaneously, it fully utilizes the space at the bottom of the refrigerator 10, ensuring the heat dissipation efficiency of the compressor 104 and the condenser 105.

[0080] Due to the inclined structure of the first inclined section 114, the air inlet 110a and the air outlet 110b are inclined, making air intake and exhaust smoother and ensuring heat dissipation efficiency. In some embodiments, see again... Figure 6The distance from the front edge 112a of the tray 112 to the first inclined section 114 is between 20 and 50 mm, which ensures the size of the air inlet 110a and the air outlet 110b, and further ensures the heat dissipation efficiency of the compressor 104 and the condenser 105.

[0081] In some embodiments, such as Figure 12 As shown, and with reference Figure 10 and Figure 11 The cooling fan 106 may include a partition frame 107 and an axial fan 106-1 located in the partition frame 107. The upper edge of the partition frame 107 is connected to the top horizontal section 115. The lower end of the front edge of the partition frame 107 is located on the front side of the tray 112 and abuts against the tray 112. The partition 117 abuts against the front edge of the partition frame 107, thereby realizing the connection between the partition 117 and the cooling fan 106 to isolate the air inlet 110a and the air outlet 110b.

[0082] In some embodiments, such as Figure 12 As shown, the back plate 116 may have multiple ventilation holes 116a. The ventilation holes 116a include ventilation holes 116a corresponding to the condenser 105 and ventilation holes 116a corresponding to the compressor 104, so that external air can enter the condenser 105 through the ventilation holes 116a under the action of the cooling fan 106, and then be discharged to the outside after passing through the compressor 104, thereby increasing the amount of airflow entering and leaving the compressor chamber 180 and further improving the heat dissipation efficiency of the compressor 104 and the condenser 105.

[0083] In some embodiments, such as Figure 9 and Figure 10 As shown, and refer to Figure 3 The refrigerator 10 also includes a front-to-back extending baffle 160 located between the air inlet 110a and the air outlet 110b, extending from the lower surface of the bottom horizontal section 113 to the lower surface of the tray 112, and connecting to the lower end of the separator 117. The baffle 160 and the separator 117 completely isolate the air inlet 110a and the air outlet 110b, thereby laterally separating the space between the bottom of the outer casing 110 and the supporting surface when the refrigerator 10 is placed on a supporting surface, allowing... External air, under the action of the cooling fan 106, enters the condenser 105 through the air inlet 110a located on the lateral side of the baffle 160, then enters the compressor 104 from the condenser 105, and finally flows out from the air outlet 110b located on the other lateral side of the baffle 160. This ensures that the air inlet 110a and the air outlet 110b are completely isolated, ensuring that the external air entering the condenser and the cooling air discharged from the compressor do not cross-flow, further ensuring the cooling efficiency.

[0084] like Figure 3 and Figure 5As shown, support rollers (not shown) are provided at the four corners of the bottom of the outer casing 110. The refrigerator 10 is placed on the support surface (not shown). The wind deflector 160 extends back and forth, and horizontally separates the space between the bottom of the outer casing 110 and the support surface, so that the airflow from the outside space can enter the compressor chamber through the air inlet 110a, and exchange heat with the condenser 105 and the compressor 104 in sequence, and then be discharged through the air outlet 110b.

[0085] like Figure 10 and refer to Figure 11 As shown, a space should be formed between the bottom plate of the outer shell 110 and the inner freezer liner 130 to facilitate the filling of insulation material (foaming agent) to form a foam layer and ensure the insulation performance of the refrigerator. In some embodiments, the first inclined section 114 has an opening, and the separator 117 has a cavity 117a recessed from the opening downwards and backwards. The cavity 117a is open at the position corresponding to the opening, thereby utilizing the cavity 117a of the separator 117 to accommodate the foaming agent, ensuring the thickness of the foam layer and preventing condensation.

[0086] In some embodiments, see again Figure 6 and Figure 7 and combined Figure 10 and Figure 12 The bottom wall of the cooling chamber 133 has a water receiving portion 109. The refrigerator 10 also includes an evaporating dish 108 and a drain pipe 170. The water receiving portion 109 can be located directly below the evaporator 101 to collect the condensate dripping from the evaporator 101. A drain outlet 130c is formed at the bottom of the water receiving portion 109, and a through hole communicating with the drain outlet 130c is formed on the bottom wall of the freezer inner liner 130. The evaporating dish 108 is disposed at the bottom of the condenser 105. One end of the drain pipe 170 is connected to the through hole, and the other end passes through the separator 117 and connects to the evaporating dish 108 to guide the condensate into the evaporating dish 108.

[0087] In some embodiments, see again Figure 6 and Figure 7 The water receiving part 109 has a front inclined surface and a rear inclined surface. A drain outlet 130c is formed at the junction of the two inclined surfaces of the water receiving part 109. The angles between the front and rear inclined surfaces of the water receiving part 109 and the horizontal plane are both greater than or equal to 5°. The inclined surfaces of the water receiving part 109 allow condensate generated by the evaporator 101 to enter the water receiving part 109 and ensure that all of it is drained. The drain pipe 170 is placed at an angle, with one end of the drain pipe 170 connected to the drain outlet higher than the other end of the drain pipe 170. The angle between the drain pipe 170 and the horizontal plane is greater than or equal to 5°. The angle of inclination of the drain pipe 170 matches the angle of the inclined surface of the water receiving part 109, allowing the condensate in the water receiving part 109 to drain smoothly.

[0088] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A refrigerator comprising: a cabinet including a storage liner, the storage liner including a freezing liner located at a lower portion, the freezing liner defining a cooling chamber at an inner lower portion thereof, and a storage compartment located above the cooling chamber defined in the storage liner; an evaporator disposed in the cooling chamber; a centrifugal fan located in the cooling chamber at a rear side of the evaporator, the centrifugal fan being configured to cause a flow of cooled air after passing through the evaporator to flow to the storage compartment; a press compartment defined at a bottom portion of the cabinet at a rear side of the cooling chamber; a bottom wall of the freezing liner including a horizontal wall and an inclined wall inclinedly extending upward and rearward from the horizontal wall, the press compartment being located at a rear lower side of the inclined wall; a cover plate latched to the bottom portion of the freezing liner; a wind blocking foam located between the evaporator and the cover plate; a wind blocking plate located below an upper surface of the cover plate and disposed at an upper portion of the evaporator; the wind blocking foam filling a space between the wind blocking plate and a lower surface of the cover plate to avoid a portion of return air flow entering the space between the wind blocking plate and the lower surface of the cover plate without passing through the evaporator; the wind blocking plate including: a front plate segment disposed in a spaced-apart manner from an upper surface of the evaporator; a rear plate segment connected to a rear end of the front plate segment and abutting against the upper surface of the evaporator. 2.The refrigerator according to claim 1, wherein the wind blocking plate is stepped from front to rear. 3.The refrigerator according to claim 1, wherein a top end of the centrifugal fan is more forward relative to a bottom end. 4.The refrigerator according to claim 1, wherein the centrifugal fan includes a housing and an impeller disposed in the housing at a position close to a front end; the housing is inclinedly extended upward from front to rear, an upper surface of the housing is formed with a cold air inlet at a position corresponding to the impeller, a rear end of the housing is formed with a cold air outlet, and an inclined direction of the impeller is parallel to an inclined direction of the housing; the refrigerator further includes a freezing air supply duct vertically extended upward along a rear wall of the freezing liner, and a lower end of the freezing air supply duct is connected and communicated with the cold air outlet at the rear end of the housing to deliver a flow of cooled air after heat exchange with the evaporator. 5.The refrigerator according to claim 4, wherein an angle between the upper surface of the housing and a vertical plane is in a range of 55° to 70°. 6.The refrigerator according to claim 4, wherein an angle between a lower surface of the housing and the freezing air supply duct is in a range of 120° to 135°. 7.The refrigerator according to claim 4, wherein a horizontal distance between a front end surface of the housing and a rear end surface of the evaporator is in a range of 15 mm to 25 mm. 8.The refrigerator according to claim 4, wherein the storage compartment includes a freezing chamber defined in the freezing liner directly above the cooling chamber and a variable temperature chamber directly above the freezing chamber; the freezing air supply duct has an air supply outlet communicated with the freezing chamber and an air supply outlet communicated with the variable temperature chamber. 9.The refrigerator according to claim 8, wherein a rear portion of the cover plate is open; and A return air inlet is formed in the upper front side of the cover plate, so that the return air flow of the freezing chamber and the temperature-changing chamber flows into the cooling chamber through the return air inlet for recooling.

10. The refrigerator according to claim 4, wherein The storage chamber further comprises a refrigerating chamber defined by the refrigerating liner; The storage chamber further comprises a refrigerating chamber defined by the refrigerating liner; The refrigerator further comprises a refrigerating air supply duct arranged inside the rear wall of the refrigerating liner, an inlet of which is connected to and communicates with the outlet of the freezing air supply duct, and the refrigerating air supply duct has an air supply outlet communicating with the refrigerating chamber to supply cold air flow to the refrigerating chamber.

11. The refrigerator according to claim 10, further comprising: Two return air ducts are arranged on the lateral sides of the storage chamber respectively, and each of the return air ducts has two ends communicating with the refrigerating chamber and the cooling chamber respectively to supply the return air flow of the refrigerating chamber to the cooling chamber for recooling.

12. The refrigerator according to claim 1, wherein The compressors, the cooling fans and the condensers are arranged in the compressor chamber in sequence and spaced apart in the lateral direction, and the bottom of the box body is formed with a lateral spaced apart air inlet and an air outlet, the air inlet corresponds to the condenser to communicate the condenser with the outside space, and the air outlet corresponds to the compressor to communicate the compressor with the outside space.

13. The refrigerator according to claim 12, wherein The condensers are arranged in an inclined manner, and the condensers are arranged in an inclined manner from bottom to top to gradually move away from the compressors.

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