A refrigerator with the cooling chamber located at the lower inside of the freezer

Abstract

The present invention provides a refrigerator with a cooling chamber located at the lower inner part of a freezing liner, comprising a box body, the box body comprising a storage liner, the storage liner comprising a freezing liner located at the lower part, a cooling chamber defined at the lower inner part of the freezing liner, a storage compartment located above the cooling chamber defined in the storage liner, an evaporator arranged in the cooling chamber, the cooling chamber occupies the lower space inside the freezing liner, and can effectively raise the position of the freezing chamber located above the cooling chamber in the freezing liner, reduce the degree of bending when the user takes and puts items in the freezing chamber, and improve the user experience. A cross-flow fan is located in the cooling chamber and is arranged horizontally behind the evaporator, and is configured to cause the cold air flow cooled by the evaporator to flow to the storage compartment.

Description

[0001] This application is a divisional application of the Chinese patent application with application number 201810332149.8, application date April 13, 2018, and application name “Refrigerator with cooling chamber located at the lower inner side of the freezer tank”. Technical Field

[0002] The invention relates to the technical field of household appliances, and in particular to a refrigerator in which a cooling chamber is located at the lower inner part of a freezing tank. Background Art

[0003] For the integrated cabinets assembled in the kitchen, in order to improve the aesthetics and integrity of the cabinets, the integrated cabinets often use built-in refrigerators. The space where the built-in refrigerator is located is limited, and the structural design of the refrigerator needs to focus on the reasonable allocation of the space for the refrigerator and other equipment.

[0004] In existing refrigerators, the freezer compartment is generally located at the lower part of the refrigerator, the evaporator is located at the rear of the outer side of the freezer compartment, and the compressor compartment is located at the rear lower part of the freezer compartment. The freezer compartment needs to make way for the compressor compartment, which makes the freezer compartment irregular and limits the depth of the freezer compartment. Summary of the invention

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

[0006] A further object of the present invention is to improve the rationality of space utilization in a refrigerator.

[0007] The present invention provides a refrigerator with a cooling chamber located at the lower inner side of a freezing tank, comprising:

[0008] The box body includes a storage liner, the storage liner includes a freezing liner located at the lower part, a cooling chamber is defined at the lower inner side of the freezing liner, and a storage compartment located above the cooling chamber is defined in the storage liner;

[0009] an evaporator disposed in the cooling chamber;

[0010] A cross-flow fan is located in the cooling chamber and is laterally arranged at the rear side of the evaporator, and is configured to force the cold air flow cooled by the evaporator to flow to the storage compartment.

[0011] Optionally, the angle between the air outlet surface of the crossflow fan and the vertical plane ranges from 25° to 35°.

[0012] Optionally, a horizontal distance between a leading edge of the front face of the cross-flow fan and a rear face of the evaporator ranges from 15 mm to 25 mm.

[0013] Optionally, the refrigerator further comprises:

[0014] The refrigeration air supply duct includes an inclined air supply section and a vertical air supply section which are sequentially connected and communicated on the air outlet path of the crossflow fan;

[0015] The inclined air supply section is located in the cooling chamber and extends upward in a gradually contracting manner from the air outlet of the cross-flow fan;

[0016] The vertical air supply section extends vertically upward along the rear wall of the freezing inner container from the connection with the inclined air supply section.

[0017] Optionally, the inclined air supply section includes an upper cover plate and a lower cover plate located below the upper cover plate;

[0018] The upper cover plate includes a horizontal plate section and a curved plate section. The horizontal plate section extends horizontally backward from the upper end of the air outlet of the crossflow fan. The curved plate section is connected to the rear end of the horizontal plate section and extends upward in a curved manner to connect with the vertical air supply section.

[0019] The lower cover plate extends obliquely upward from the lower end of the air outlet of the crossflow fan to connect with the vertical air supply section;

[0020] The angle between the lower cover plate and the vertical air supply section ranges from 120° to 135°.

[0021] Optionally, the storage compartment includes a freezing chamber defined by a freezing liner and located directly above the cooling chamber, and a temperature-changing chamber located directly above the freezing chamber;

[0022] The vertical air supply section has an air supply outlet connected to the freezing chamber and an air supply outlet connected to the temperature changing chamber.

[0023] Optionally, the refrigerator further comprises:

[0024] A cover plate with an open rear portion is buckled on the bottom of the freezing inner container to define a cooling chamber together with the rear wall and the bottom wall of the freezing inner container;

[0025] A return air port is formed at the upper front portion of the cover plate, so that the return air flow from the freezing chamber and the temperature-changing chamber flows through the return air port into the cooling chamber for re-cooling.

[0026] Optionally, the refrigerator further comprises:

[0027] The windshield, which is stepped from front to back, is located below the upper surface of the cover plate and is arranged on the upper part of the evaporator. The windshield includes:

[0028] The front plate section is spaced apart from the upper surface of the evaporator so that part of the return airflow enters the space between the front plate section and the upper surface of the evaporator to exchange heat with the evaporator;

[0029] The rear plate section is connected to the rear end of the front plate section and is closely attached to the upper surface of the evaporator to avoid a gap between the rear plate section and the upper surface of the evaporator, which causes part of the return air flow to pass through the gap instead of the evaporator;

[0030] The space between the wind shield and the upper surface of the cover plate is filled with wind shield foam to prevent part of the return air flow from entering the space between the wind shield and the upper surface of the cover plate without passing through the evaporator.

[0031] Optionally, the storage liner further includes a refrigeration liner located above the freezing liner;

[0032] The storage compartment also includes a refrigeration chamber defined by a refrigeration liner;

[0033] The refrigerator also includes a refrigerated air supply duct, which is arranged on the inner side of the rear wall of the refrigerated inner tank, and its inlet is connected and communicated with the outlet of the vertical air supply section. It has an air supply outlet communicated with the refrigerating chamber to convey a cold air flow to the refrigerating chamber.

[0034] Optionally, the refrigerator further comprises:

[0035] Two return air ducts are respectively arranged on two lateral sides of the storage liner, and both ends of each return air duct are connected to the refrigerating chamber and the cooling chamber respectively, so as to transport the return air flow of the refrigerating chamber to the cooling chamber for re-cooling.

[0036] The refrigerator of the present invention has a cooling chamber located at the lower inner part of the freezer inner tank. The cooling chamber is arranged at the lower inner part of the freezer inner tank, occupying the lower space inside the freezer inner tank. The position of the storage compartment located above the cooling chamber in the freezer inner tank (for example, the freezer chamber located above the cooling chamber) can be effectively raised, reducing the degree of bending of the user when taking and placing items in the freezer chamber, thereby improving the user's experience.

[0037] Furthermore, the cooling chamber of the present invention is located in the refrigerator at the lower inner part of the freezing liner, and the freezing air supply duct adopts a special design structure, which can reduce wind loss, ensure air supply efficiency, and reduce air flow noise.

[0038] Furthermore, the cooling chamber of the present invention is located in the refrigerator at the lower inner part of the freezer tank, and a specially constructed wind shield is provided on the upper part of the evaporator. When frosting forms on the front end surface of the evaporator, the return air flow can enter the interval space between the front plate section of the wind shield and the upper surface of the evaporator to exchange heat with the evaporator, thereby cooling down to form a cold air flow, thereby ensuring a continuous supply of cold air flow.

[0039] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0041] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0042] Figure 2 is an exploded schematic diagram of a refrigerator according to an embodiment of the present invention;

[0043] Figure 3 is a schematic diagram of a refrigerator according to an embodiment of the present invention, wherein a refrigerator door, a temperature-changing drawer and a freezing drawer are hidden;

[0044] Figure 4 yes Figure 3 An exploded schematic diagram of the structure shown, in which the two side panels of the box are hidden;

[0045] Figure 5 is a schematic diagram of a refrigerator according to an embodiment of the present invention, wherein a refrigerating chamber door, a temperature-changing drawer, a freezing drawer and a partial structure of a cover plate are hidden to show components disposed inside the cooling chamber;

[0046] Figure 6 is a schematic diagram of a cross-flow fan and a freezing air supply duct of a refrigerator according to an embodiment of the present invention;

[0047] Figure 7 is a partial cross-sectional view of a refrigerator according to an embodiment of the present invention;

[0048] Figure 8 yes Figure 7 A partial schematic diagram of

[0049] Fig. 9 is a partial schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the structure of the bottom of the refrigerator is shown;

[0050] Fig.10 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 hidden to show the structure of the inner side of the bottom of the refrigerator body;

[0051] Fig.11 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 hidden; and

[0052] Fig.12 yes Fig.11 Exploded schematic diagram of the structure shown. DETAILED DESCRIPTION

[0053] like Figures 1 to 4 As shown, the present embodiment first provides a refrigerator 10 in which a cooling chamber 133 is located at the lower inner part of a freezing liner 130. The refrigerator 10 may generally include a body 100, the body 100 includes an outer shell 110 and a storage liner arranged on the inner side of the outer shell 110, the space between the outer shell 110 and the storage liner is filled with a heat-insulating material (forming a foaming layer), a storage compartment is defined in the storage liner, the storage liner may generally include a freezing liner 130, a refrigerating liner 120, etc. The freezing liner 130 is located above the refrigerating liner 120, and the storage compartment includes a freezing chamber 132 defined by the freezing liner 130 and a refrigerating chamber 121 defined by the refrigerating liner 120.

[0054] As those skilled in the art can appreciate, the refrigerator 10 of the embodiment of the present invention may further include an evaporator 101, an air supply fan, a compressor 104, a condenser 105, and a throttling element (not shown), etc. The evaporator 101 is connected to the compressor 104, the condenser 105, and the throttling element via a refrigerant pipeline to form a refrigeration cycle, and the temperature is reduced when the compressor 104 is started to cool the air flowing through it.

[0055] In particular, in this embodiment, if Figures 1 to 4 As shown, the freezing liner 130 is located at the lower part of the box body, and a cooling chamber 133 is defined in the lower inner part thereof. The evaporator 101 is arranged in the cooling chamber 133, and the air supply fan is a cross-flow fan 103. The cross-flow fan 103 is horizontally arranged in the cooling chamber 133 and is located at the rear side of the evaporator 101. A storage compartment located above the cooling chamber 133 is defined in the storage liner, and the cross-flow fan 103 is configured to promote the cold air flow cooled by the evaporator 101 to flow to the storage compartment.

[0056] In some embodiments, the storage compartment includes a freezer compartment 132 located directly above the cooling compartment 133 and a variable temperature compartment 131 located directly above the freezer compartment 132, which are defined by the freezer liner 130. The variable temperature compartment 131 and the freezer compartment 132 are both drawer-type structures. Figure 2 , and combined with Figure 3 As shown, a temperature-changing chamber drawer door panel 137 is provided at the front side of the temperature-changing chamber 131 to open or close the temperature-changing chamber 131, and a freezer drawer door panel 138 is provided at the front side of the freezer chamber 132 to open or close the freezer chamber 132. The refrigerating liner 120 is located above the freezer liner 130, and the storage compartment includes a refrigerating chamber 121 defined by the refrigerating liner 120, and a refrigerating chamber door body 136 is provided at the front side of the refrigerating chamber 121 to open or close the refrigerating chamber 121.

[0057] As is well known to those skilled in the art, the temperature in the refrigerating chamber 121 is generally between 2°C and 10°C, preferably between 4°C and 7°C. The temperature in the freezing chamber 132 is generally between -22°C and -14°C. The temperature of the variable temperature chamber 131 can be adjusted to -18°C to 8°C at will. Different types of items have different optimal storage temperatures and different suitable storage locations. For example, fruit and vegetable foods are suitable for storage in the refrigerating chamber 121, while meat foods are suitable for storage in the freezing chamber 132.

[0058] In a traditional refrigerator, the freezer compartment is generally located at the bottom of the refrigerator, so that the freezer compartment is located at a relatively low position, and the user needs to bend down or squat down significantly to operate the freezer compartment to take out and put items, which is inconvenient for users, especially for the elderly. In this embodiment, the cooling chamber 133 is arranged in the lower space inside the freezer liner, so that the cooling chamber 133 occupies the lower space inside the freezer liner, the height of the freezer compartment 132 is increased, and the user's bending degree when taking out and putting items in the freezer compartment 132 is reduced, thereby improving the user's experience.

[0059] In some embodiments, Figure 4 , 5 As shown, the evaporator 101 is in a flat cubic shape as a whole and is placed horizontally in the cooling chamber 133, that is, the length and width of the evaporator 101 are parallel to the horizontal plane, and the thickness surface is placed perpendicular to the horizontal plane. The evaporator 101 is parallel to the ground as a whole, and the thickness dimension is significantly smaller than the length dimension of the evaporator 101. By placing the evaporator 101 horizontally in the cooling chamber 133, the evaporator 101 is prevented from occupying more space, and the storage volume of the freezing chamber 132 and the temperature-changing chamber 131 above the cooling chamber 133 is guaranteed.

[0060] In some embodiments, see Figure 7 The value range of the angle β between the air outlet surface of the crossflow fan 103 and the vertical plane is 25° to 35°. By arranging the crossflow fan 103 in this way, the crossflow fan 103 is arranged inclined as a whole, which can reduce the height space occupied by the crossflow fan. At the same time, it can avoid the crossflow fan 103 being tilted too much to cause excessive air supply resistance, thereby minimizing the flow loss in the wind path and ensuring the air supply efficiency while ensuring the compactness of the spatial layout.

[0061] The horizontal distance α between the front edge of the front face of the cross-flow fan 103 and the rear face of the evaporator 101 ranges from 15 mm to 25 mm, so as to prevent the frost from spreading to the blades of the cross-flow fan 103 due to the small distance between the cross-flow fan 103 and the evaporator 101 when the evaporator 101 is heavily frosted, thereby causing frost on the cross-flow fan 103.

[0062] In some embodiments, Figures 3 to 7As shown, the refrigerator 10 further includes a freezing air supply duct, which includes an inclined air supply section 141c and a vertical air supply section 141 which are sequentially connected and communicated on the air outlet path of the cross-flow fan 103. The inclined air supply section 141c is located in the cooling chamber 133, and extends upward in a gradually contracting inclined manner from the air outlet of the cross-flow fan 103, and the vertical air supply section 141 extends vertically upward along the rear wall of the freezing liner 130 from the connection with the inclined air supply section 141c. The vertical air supply section 141 has an air supply outlet 141a connected to the freezing chamber 132 and an air supply outlet 141b connected to the variable temperature chamber 131, so as to transport the cold air flow after heat exchange with the evaporator 101 to the freezing chamber 132 and the variable temperature chamber 131 respectively, so as to keep the freezing chamber 132 at a corresponding temperature and keep the variable temperature chamber 131 at a corresponding temperature.

[0063] The inclined air supply section 141c is defined by an upper cover plate and a lower cover plate 141c-1 located at the lower part of the upper cover plate. The upper cover plate includes a horizontal plate section 141c-2 and a curved plate section 141c-3. The horizontal plate section 141c-2 extends horizontally backward from the upper end of the air outlet of the crossflow fan 103. The horizontal plate section 141c-2 can fit well with the upper surface of the cover plate 102, thereby increasing the compactness of the space. The curved plate section 141c-3 is connected to the rear end of the horizontal plate section 141c-2, and bends and extends upward to connect with the vertical air supply section 141, thereby realizing the transition from the inclined air supply section 141c to the vertical air supply section 141. The lower cover plate 141c-1 extends upwardly and obliquely from the lower end of the air outlet of the cross-flow fan 103 to connect with the vertical air supply section 141, thereby defining an inclined air supply section 141c extending upwardly and obliquely in a gradually tapering manner from the air outlet of the cross-flow fan 103 using the upper cover plate and the lower cover plate 141c-1 of the aforementioned structure.

[0064] The vertical air supply section 141 may be defined by a front cover plate (not marked) and a rear cover plate (not marked), and the curved plate section 141c-3 bends and extends upward to connect with the vertical air supply section 141, which means that the curved plate section 141c-3 bends and extends upward to connect with the front cover plate, and the lower cover plate 141c-1 extends obliquely upward to connect with the vertical air supply section 141, which means that the lower cover plate 141c-1 extends obliquely upward to connect with the rear cover plate, so as to connect and communicate the inclined air supply section 141c and the vertical air supply section 141.

[0065] like Figure 7As shown, the angle μ between the lower cover plate 141c-1 of the inclined air supply section 141c and the vertical air supply section 141 is in the range of 120° to 135°. By limiting the inclined air supply section 141c to the above arrangement, the wind path turning loss can be reduced, and at the same time, a concession is made to the lower right part of the freezing chamber 132; and, the angle μ between the lower cover 141c-1 of the inclined air supply section 141c and the vertical air supply section 141 and the angle β between the air outlet surface of the cross-flow fan 103 and the vertical plane can clearly determine the angle between the air outlet surface of the cross-flow fan 103 and the lower cover 141c-1 of the inclined air supply section 141c. By limiting μ and β to the angle range mentioned above, it is ensured that the angle between the air outlet surface of the cross-flow fan 103 and the lower cover 141c-1 of the inclined air supply section 141c is within a certain range of values, thereby avoiding wind trapping at the air outlet of the cross-flow fan 103, further ensuring the air supply efficiency and reducing the air flow noise.

[0066] See also Figures 3 to 5 The refrigerator 10 also includes a refrigerated air supply duct 142, an inlet 142b of the refrigerated air supply duct 142 is connected and communicated with an outlet 141d of the vertical air supply section 141, and the refrigerated air supply duct 142 also has an air supply outlet 142a communicated with the refrigerating chamber 121 to transport a cold air flow to the refrigerating chamber 121 to keep the refrigerating chamber 121 at a corresponding temperature.

[0067] A connecting duct (not shown) is provided between the refrigerated air supply duct 142 and the vertical air supply section 141 , and the inlet 142 b of the refrigerated air supply duct 142 is connected and communicated with the outlet 141 d of the vertical air supply section 141 through the connecting duct.

[0068] A return air duct 150 is respectively arranged on both lateral sides of the storage liner, that is, the two return air ducts 150 of the refrigerator 10 are respectively arranged on both lateral sides of the storage liner, and both ends of each return air duct 150 are respectively connected to the refrigerating chamber 121 and the cooling chamber 133, so as to transport the return air flow of the refrigerating chamber 121 to the cooling chamber 133 for re-cooling. Figure 7 , 8 As shown, the cooling chamber 133 has a refrigeration return air port 102 b connected to the return air duct 150 , and the return air from the refrigeration chamber 121 is recirculated to the cooling chamber 133 through the return air duct 150 and the refrigeration return air port 102 b .

[0069] In some embodiments, Figure 2 , 3 , and combined with Figure 4 , Figure 7 and Figure 8 As shown, a cover plate 102 with an open rear portion is disposed in the freezing inner container 130 . The cover plate 102 is buckled on the bottom of the freezing inner container 130 , and together with the rear wall and the bottom wall of the freezing inner container 130 , defines a cooling chamber 133 .

[0070] In particular, in the present embodiment, a return air port 102a is formed at the upper front portion of the cover plate 102, and the return air port 102a can be called a freezing return air port. The return air flow of the freezing chamber 132 and the return air flow of the temperature-changing chamber 131 flow through the return air port 102a to the cooling chamber 133 to re-exchange heat with the evaporator 101 to form a cold air flow. In the present embodiment, by forming the return air port 102a at the upper front portion of the cover plate 102, the return air flow of the freezing chamber 132 and the return air flow of the temperature-changing chamber 131 flow through the return air port 102a to the cooling chamber 133, eliminating the need to additionally provide a freezing return air duct for conveying the return air flow of the freezing chamber 132 and the temperature-changing chamber 131, thereby simplifying the overall structure of the refrigerator 10.

[0071] like Figure 5 , and see Figure 7 and Figure 8 The refrigerator 10 further includes a windshield 139 which is stepped from front to back. The windshield 139 is located below the upper surface of the cover plate 102 and is disposed on the upper portion of the evaporator 101 . The wind shield 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 connected to the rear plate section 139b through the curved plate section 139c, the front plate section 139a is spaced apart from the upper surface of the evaporator 101, thereby forming a spacing space between the front plate section 139a and the upper surface of the evaporator 101, and a portion of the return air flow delivered to the cooling chamber 133 through the return air port 102a and the return air duct 190 enters the spacing 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 air flow and the evaporator 101, and when the front end surface of the evaporator 101 is frosted, the return air flow can enter the spacing space between the front plate section and the upper surface of the evaporator 101 to exchange heat with the evaporator 101, cool down to form a cold air flow, and ensure the continuous supply of cold air flow.

[0072] The rear plate section 139b is closely attached to the upper surface of the evaporator 101, so as to avoid the formation of a gap between the rear plate section 139b and the upper surface of the evaporator 101. If a gap is formed between the rear plate section 139b and the upper surface of the evaporator 101, so that an airflow channel is formed between the wind shield 139 and the upper surface of the evaporator 101, part of the return air flow will flow directly to the rear of the evaporator 101 through the airflow channel without exchanging heat with the evaporator 101, that is, under the action of the cross-flow fan 103, it is transported to the storage room above the cooling chamber 133 by the refrigeration air supply duct and the refrigeration air supply duct 142, affecting the temperature of the storage room. Therefore, in this embodiment, by closely attaching the rear plate section 139b to the upper surface of the evaporator 101, it is avoided that the rear plate section 139b and the upper surface of the evaporator 101 form a gap, which causes part of the return air flow to pass through the gap without exchanging heat with the evaporator 101.

[0073] In addition, the space between the wind shield 139 and the upper surface of the cover plate 102 should be filled with wind shield foam 139d, so that the return air flow cannot enter the space between the wind shield 139 and the upper surface of the cover plate 102, thereby avoiding part of the return air flow entering the space between the wind shield 139 and the upper surface of the cover plate 102 without passing through the evaporator 101.

[0074] like Figure 2 , Figure 7 and Fig.10 As shown, the bottom of the box body 100 is located behind the cooling chamber 133 and defines a press chamber 180, that is, the press chamber 180 is located at the lower rear side of the freezing liner 130 opposite to the cooling chamber 133, and the rear of the cooling chamber 133 can be directly behind or below the cooling chamber 133.

[0075] In traditional refrigerators, the compressor compartment is generally located at the rear of the freezer compartment at the bottom of the box body. The freezer compartment inevitably has to be made into a special-shaped space to make way for the compressor compartment, which reduces the storage capacity of the freezer compartment. In order to maintain a certain storage capacity of the freezer compartment, the upper and lower depths of the freezer compartment are usually increased, which leads to the following inconveniences. On the one hand, as mentioned above, users need to bend down significantly when placing items in the deeper freezer compartment, which is very inconvenient, especially for the elderly. On the other hand, when users store items in the freezer compartment, they need to stack the items in the height direction, which is inconvenient for users to find items. In addition, items at the bottom of the freezer compartment are easily blocked, making it difficult for users to find them and forget them, resulting in deterioration and waste of items. Furthermore, since the freezer compartment is a special shape and not a rectangular space, it is inconvenient to place some large and difficult to divide items in the freezer compartment.

[0076] The refrigerator 10 of the present embodiment defines a cooling chamber 133 at the lower part of the freezing inner liner 130, and defines a pressing chamber 180 at the lower rear side of the freezing inner liner 130 and behind the cooling chamber 133. The corresponding parts of the freezing inner liner 130 and the cooling chamber 133 provide space for the pressing chamber 180, so that the freezing chamber 132 above the cooling chamber 133 is a rectangular space, so that the items can be stored in a flat manner instead of in a stacked manner, which is convenient for users to find items and saves users' time and energy; at the same time, it is also convenient to place large items that are difficult to divide, solving the pain point that large items cannot be placed in the freezing chamber 132; in addition, as mentioned above, the overall height of the freezing chamber 132 above the cooling chamber 133 is raised, which reduces the bending amplitude of the user when using it and facilitates user operation.

[0077] In some embodiments, see Fig.10The bottom wall of the freezing inner container 130 includes a horizontal wall 134 and an inclined wall 135 extending from the horizontal wall 134 to the rear and upward, the horizontal wall 134 constitutes the bottom wall of the cooling chamber 133, the inclined wall 135 constitutes the rear wall of the cooling chamber 133, and the press chamber 180 is located at the rear lower side of the inclined wall 135. The design of the inclined wall 135 provides an escape space for the press chamber.

[0078] In some embodiments, see Fig.10 A recessed portion (not shown) is formed at the inner rear side of the bottom wall of the freezing liner 130, which is recessed downward and backward for evading the crossflow fan 103. The recessed portion provides an evasive space for the crossflow fan 103, so that the crossflow fan 103 is arranged further down, thereby lowering the height of the crossflow fan 103, that is, lowering the height of the top wall of the cooling chamber 133, thereby further increasing the storage volume of the freezing chamber 132 above the cooling chamber 133.

[0079] The aforementioned recessed portion is formed at the lower inner portion of the inclined wall 135 and is recessed downward and rearward. The recessed portion is a recessed structure inside the freezing liner 130 to avoid the cross-flow fan 103 , and is a protrusion 130 b on the outer side of the freezing liner 130 .

[0080] like Figures 9 to 12 As shown, the compressor 104, the cooling fan 106 and the condenser 105 are arranged in a horizontal direction (such as Figure 1 , Figure 2 and Fig. 9 The bottom of the box body 100 is formed with air inlets 110a spaced laterally (for example, Fig. 9 As shown, the air inlet 110a is located on the left side in the horizontal direction) and the air outlet 110b (for example, as shown Fig. 9 As shown, the air outlet 110b is located on the right side in the horizontal direction), the air inlet 110a corresponds to the condenser 105 to connect the condenser 105 with the external space, and the air outlet 110b corresponds to the compressor 104 to connect the compressor 104 with the external space. The heat dissipation fan 106 is configured to cause the external air to enter the condenser 105 through the air inlet 110a, and enter the compressor 104 from the condenser 105, and then be discharged to the external space through the air outlet 110b, so as to dissipate 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, so in the above process, the external air first cools the condenser 105 and then cools the compressor 104.

[0081] The refrigerator 10 of the present invention is preferably used in a built-in cabinet or other storage space to save the space occupied by the refrigerator 10. In order to improve the overall aesthetics of the refrigerator 10 and reduce the space occupied by the refrigerator 10, the reserved space between the rear wall of the refrigerator 10 and the storage space or the cabinet is small, resulting in a low heat dissipation efficiency of the front and rear air inlet and outlet method used in the prior art. If heat dissipation is to be ensured, the distance between the rear wall of the refrigerator 10 and the storage space or the cabinet must be increased, which increases the space occupied by the refrigerator 10. The refrigerator 10 of this embodiment, by forming a transversely spaced air inlet 110a and an air outlet 110b at the bottom of the box body 100, the heat dissipation airflow circulates at the bottom of the refrigerator 10, making full use of the space between the refrigerator 10 and the supporting surface, without increasing the distance between the rear wall of the refrigerator 10 and the cabinet, while reducing the space occupied by the refrigerator 10, the heat dissipation efficiency is improved.

[0082] In some embodiments, the condenser 105 may be arranged at an angle, such as Fig.12 As shown, the condenser 105 is tilted from bottom to top in a direction gradually away from the compressor 104, thereby increasing the heat dissipation area of ​​the condenser 105 in a limited space of the compressor chamber.

[0083] In some embodiments, Figures 9 to 12 As shown, the box body 100 further 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 side of the bottom, a first inclined section 114 extending obliquely backward and upward from the rear end of the bottom horizontal section 113, a second inclined section 118 extending obliquely 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, and the top horizontal section 115 constitutes the top wall of the compressor chamber 180. The support plate 112 is located below the top horizontal section 115 and constitutes the bottom wall of the compressor chamber 180. The compressor 104, the heat dissipation fan 106 and the condenser 105 are sequentially arranged on the support plate 112 in a spaced manner in the transverse direction, and the support plate 112 is spaced from the bottom horizontal section 113 to form an air outlet connected to the external space by using the space between the front end of the support plate 112 and the rear end of the bottom horizontal section 113.

[0084] See also Fig. 9 The two vertically extending side panels 111 are constructed as two lateral side walls of the box body to close the two lateral sides of the box body, and the lower parts of the two side panels 111 constitute the two lateral side walls 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 to constitute the rear wall of the press chamber 180.

[0085] A partition 117 is provided at the rear of the middle of the first inclined section 114, and the rear of the partition 117 is connected to the heat dissipation fan 106, thereby separating the spacing space between the support plate 112 and the bottom horizontal section 113 (that is, the aforementioned air outlet) into an air inlet 110a and an air outlet 110b.

[0086] In a conventional refrigerator, the bottom of the box generally has a bearing plate of a roughly flat structure, and the compressor is arranged on the inner side of the bearing plate. The vibration generated during the operation of the compressor has a greater impact on the bottom of the box. In this embodiment, as mentioned above, the bottom of the box 100 is constructed into a three-dimensional structure by a bottom plate and a support plate 112 of a special structure, providing an independent three-dimensional space for the arrangement of the compressor 104, and the support plate 112 is used to carry the compressor 104, thereby reducing the impact of the vibration of the compressor 104 on other components at the bottom of the box. In addition, by designing the box 100 as the above-mentioned ingenious special structure, the structure of the bottom of the refrigerator 10 is compact and the layout is reasonable, which reduces the overall volume of the refrigerator 10, while making full use of the space at the bottom of the refrigerator 10, ensuring the heat dissipation efficiency of the compressor 104 and the condenser 105.

[0087] Due to the inclined structure of the first inclined section 114, the air inlet 110a and the air outlet 110b are inclined, so that the air inlet and outlet are smoother, ensuring the heat dissipation efficiency. Figure 6 The distance from the front edge 112a of the support plate 112 to the first inclined section 114 ranges from 20 to 50 mm, thereby ensuring the size of the air inlet 110a and the air outlet 110b, and further ensuring the heat dissipation efficiency of the compressor 104 and the condenser 105.

[0088] In some embodiments, Fig.12 As shown, combined with Fig.10 and Fig.11 The heat dissipation fan 106 may include a partition frame 107 and an axial flow 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 support plate 112 and abuts against the support plate 112, and the partition 117 abuts against the front edge of the partition frame 107, thereby realizing the connection between the partition 117 and the heat dissipation fan 106 to isolate the air inlet 110a and the air outlet 110b.

[0089] In some embodiments, Fig.12As shown, the back plate 116 may be provided with a plurality of ventilation holes 116a, and 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 heat dissipation fan 106, and then be discharged to the outside after passing through the compressor 104, thereby increasing the inlet and outlet volume of the circulating airflow in the compressor chamber 180, and further improving the heat dissipation efficiency of the compressor 104 and the condenser 105.

[0090] In some embodiments, Fig. 9 and Fig.10 As shown, and refer to Figure 3 The refrigerator 10 further includes a windshield strip 160 extending forward and backward. The windshield strip 160 is located between the air inlet 110a and the air outlet 110b, extends from the lower surface of the bottom horizontal section 113 to the lower surface of the support plate 112, and is connected to the lower end of the partition 117, so that the air inlet 110a and the air outlet 110b are completely isolated by the windshield strip 160 and the partition 117, so that when the refrigerator 10 is placed on a supporting surface, the space between the bottom of the box body 100 and the supporting surface is horizontally separated to allow Under the action of the cooling fan 106, external air enters the condenser 105 through the air inlet 110a located on one lateral side of the wind shield 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 wind shield 160, thereby ensuring 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 will not flow together, further ensuring the cooling efficiency.

[0091] like Figure 3 and Figure 5 As shown, support rollers (not shown) are provided at the four corners of the bottom of the box body 100, the refrigerator 10 is placed on a support surface (not shown), and the wind shield 160 extends forward and backward to laterally separate the space between the bottom of the box body 100 and the support surface, so that the airflow in the external space enters the compressor compartment through the air inlet 110a, and is discharged through the air outlet 110b after exchanging heat with the condenser 105 and the compressor 104 in turn.

[0092] like Fig.10 , and refer to Fig.11As shown, a spacing space should be formed between the bottom plate of the box body 100 and the freezing liner 130 to facilitate filling of heat-insulating materials (foaming agents) to form a foaming layer to ensure the heat preservation of the refrigerator. In some embodiments, an opening is formed at the position corresponding to the first inclined section 114 and the recess, and the partition 117 has a cavity 117a that is recessed from the opening to the rear and lower side, and the cavity 117a is open at the position corresponding to the opening. Since the recess is recessed from the inner side of the bottom wall of the freezing liner 130 to the rear and lower side, a protrusion 130b is formed on the outer side of the freezing liner 130, which reduces the thickness of the foaming layer between the box body 100 and the freezing liner 130. For this reason, in this embodiment, a partition 117 having a cavity 117a is formed on the first inclined section 114, so that the cavity 117a of the partition 117 is used to accommodate the foaming agent, thereby ensuring the thickness of the foaming layer and avoiding the formation of condensation.

[0093] In some embodiments, see again Figure 7 , Figure 8 , and combined with Fig.10 and Fig.12 The bottom wall of the cooling chamber 133 is formed with a water receiving portion 109, and the refrigerator 10 further includes an evaporating dish 108 and a drain pipe 170. The water receiving portion 109 may be located directly below the evaporator 101 to receive the condensed water dripping from the evaporator 101, a drain port 130c is formed at the bottom of the water receiving portion 109, and a through hole connected to the drain port 130c is formed on the bottom wall of the freezing 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 partition 117 and is connected to the evaporating dish 108 to guide the condensed water to the evaporating dish 108.

[0094] In some embodiments, see again Figure 7 The water receiving portion 109 has an inclined surface located at the front side and an inclined surface located at the rear side. A drain port 130c is formed at the intersection of the front and rear inclined surfaces of the water receiving portion 109. The angles between the front and rear inclined surfaces of the water receiving portion 109 and the horizontal plane are both greater than or equal to 5°. The inclined surface of the water receiving portion 109 allows the condensed water generated by the evaporator 101 to enter the water receiving portion 109 and can ensure that all of it is discharged. The drain pipe 170 is placed at an angle, and one end of the drain pipe 170 connected to the drain port is 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 inclination angle of the drain pipe 170 matches the angle of the inclined surface of the water receiving portion 109, so that the condensed water in the water receiving portion 109 can be discharged smoothly.

[0095] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A refrigerator, comprising: A box body, the box body includes a storage liner, the storage liner includes a freezing liner located at the lower part, a cooling chamber is defined at the lower inner side of the freezing liner, and a storage compartment is defined in the storage liner and is located above the cooling chamber; an evaporator, disposed in the cooling chamber; an air supply fan, located in the cooling chamber and disposed transversely to the rear side of the evaporator, configured to force the cold air flow cooled by the evaporator to flow to the storage compartment; A cover plate with an open rear portion, which is buckled on the bottom of the freezing inner container to define the cooling chamber together with the rear wall and the bottom wall of the freezing inner container; A return air port is formed at the upper front portion of the cover plate, so that the return air flow of the freezing chamber flows through the return air port into the cooling chamber for re-cooling.

2. The refrigerator according to claim 1, characterized in that: The air supply fan is a cross-flow fan; the refrigerator also includes: The refrigeration air supply duct comprises an inclined air supply section and a vertical air supply section which are sequentially connected and communicated on the crossflow fan air outlet path; The inclined air supply section includes an upper cover plate and a lower cover plate located below the upper cover plate; The upper cover plate includes a horizontal plate section and a curved plate section, wherein the horizontal plate section extends horizontally backward from the upper end of the air outlet of the crossflow fan, and the curved plate section is connected to the rear end of the horizontal plate section and extends upward in a curved manner to connect with the vertical air supply section; The lower cover plate extends obliquely upward from the lower end of the air outlet of the cross-flow fan to connect with the vertical air supply section.

3. The refrigerator according to claim 2, wherein: The angle between the lower cover plate and the vertical air supply section ranges from 120° to 135°.

4. The refrigerator according to claim 2, wherein The angle between the air outlet surface of the crossflow fan and the vertical plane ranges from 25° to 35°.

5. The refrigerator according to claim 2, wherein The horizontal distance between the front edge of the front face of the crossflow fan and the rear face of the evaporator ranges from 15 mm to 25 mm.

6. The refrigerator according to claim 2, further comprising: The inclined air supply section is located in the cooling chamber and extends upward in a gradually contracting manner from the air outlet of the cross-flow fan; The vertical air supply section extends vertically upward along the rear wall of the freezing inner container from the connection with the inclined air supply section.

7. The refrigerator according to claim 6, wherein The storage compartment includes a freezing chamber defined by the freezing liner and located directly above the cooling chamber, and a temperature-changing chamber located directly above the freezing chamber; The vertical air supply section has an air supply outlet connected to the freezing chamber and an air supply outlet connected to the temperature changing chamber.

8. The refrigerator according to claim 1, further comprising: A windshield is located below the upper surface of the cover plate and is arranged on the upper part of the evaporator. The windshield includes: The front plate section is spaced apart from the upper surface of the evaporator so that part of the return airflow enters the space between the front plate section and the upper surface of the evaporator to exchange heat with the evaporator; A rear plate section connected to the rear end of the front plate section and closely attached to the upper surface of the evaporator to avoid a gap between the rear plate section and the upper surface of the evaporator, thereby preventing part of the return air from passing through the gap instead of the evaporator; The space between the wind shield and the upper surface of the cover plate is filled with wind shield foam to prevent part of the return air flow from entering the space between the wind shield and the upper surface of the cover plate without passing through the evaporator.

9. The refrigerator according to claim 2, wherein The storage liner also includes a refrigeration liner located above the freezing liner; The storage compartment also includes a refrigeration chamber defined by the refrigeration liner; The refrigerator also includes a refrigerated air supply duct, which is arranged on the inner side of the rear wall of the refrigerated inner tank, and its inlet is connected and communicated with the outlet of the vertical air supply section. It has an air supply outlet communicated with the refrigerating chamber to transport a cold air flow to the refrigerating chamber.

10. The refrigerator according to claim 9, further comprising: Two return air ducts are respectively arranged on two lateral sides of the storage liner, and both ends of each return air duct are connected to the refrigerating chamber and the cooling chamber respectively, so as to transport the return air flow of the refrigerating chamber to the cooling chamber for re-cooling.

Images