refrigerator

Abstract

The present invention provides a refrigerator, which includes a storage liner located at the bottom, a cover, an evaporator, an air supply duct and at least one blower, the cover is placed in the space defined by the storage liner, and is configured to divide the space into a cooling chamber located below and a storage compartment located above the cooling chamber, the air supply duct is arranged in the space of the storage liner, and is configured to transport cooling air cooled by the evaporator to the storage compartment, and the blower is arranged in the air supply duct, and is configured to promote air circulation between the cooling chamber and the storage compartment. The refrigerator of the present invention avoids the blower occupying the cooling chamber by arranging the blower in the air supply duct, can reduce the height of the cooling chamber, increase the storage volume of the storage compartment above the cooling chamber, and the distance between the blower and the evaporator is relatively increased, which can reduce the degree of frost on the blades of the blower.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration and freezing, and in particular to a refrigerator. Background Art

[0002] In existing refrigerators, the evaporator is generally located at the rear of the lowest storage space, which reduces the front and rear volume of the storage space, limits the depth of the storage space, and is inconvenient for placing large items that are difficult to separate. Summary of the invention

[0003] An object of the present invention is to provide a refrigerator having a large storage compartment.

[0004] A further object of the present invention is to reduce the space occupied by the cooling chamber and further increase the volume of the storage compartment.

[0005] In particular, the present invention provides a refrigerator comprising:

[0006] A storage liner located at the bottom defines a space therein;

[0007] a cover shell, disposed in the space defined by the storage liner, and configured to separate the space into a cooling chamber located below and a storage compartment located above the cooling chamber;

[0008] an evaporator disposed in the cooling chamber and configured to cool air flowing therethrough to form cooled air supplied to the storage compartment;

[0009] an air supply duct, disposed in the space and configured to deliver the cooling air to the storage compartment;

[0010] At least one blower is disposed in the air supply duct and is configured to cause air to circulate between the cooling chamber and the storage compartment.

[0011] Optionally, the air supply duct is arranged on the front side of the rear wall of the storage liner, and the front wall thereof is formed with at least one first air outlet for blowing the cooling air toward the storage compartment;

[0012] At least one of the air blowers is disposed at the lower end of the air supply duct.

[0013] Optionally, a rear wall lower end of the storage liner is formed with a accommodating groove protruding backwards;

[0014] The rear wall surface of the lower end of the air supply duct is adapted to the rear wall of the accommodating groove, and the front wall surface of the lower end of the air supply duct protrudes forward;

[0015] The air blower is arranged in a space defined by a lower rear wall surface and a lower front wall surface of the air supply duct.

[0016] Optionally, the air supply duct includes a first duct section and a second duct section which are sequentially connected in the air flow direction;

[0017] At least one of the blowers is disposed in the second air duct section and is configured to cause the cooling air cooled by the evaporator to flow through the first air duct section to the second air duct section;

[0018] The second air duct section is formed with at least one second air outlet for blowing the cooling air toward the storage compartment.

[0019] Optionally, the first air duct section is located on the front side of the rear wall of the storage liner, the second air duct section is located on the front side of the first air duct section, and the front wall of the second air duct section is formed with the at least one second air outlet.

[0020] Optionally, the first air duct section includes a first rear section located at the front side of the rear wall of the storage liner and extending upward to a top wall adjacent to the storage liner and a first upper section extending forward from an upper end of the first rear section;

[0021] The second air duct section includes a second upper section located below the first upper section and a second rear section extending downward from the rear end of the second upper section and located in front of the first rear section;

[0022] At least one of the air blowers is arranged near the front end of the second upper section, at least one of the second air outlets is formed on the lower wall of the second upper section near the front end, and at least one of the second air outlets is formed on the front wall of the second rear section.

[0023] Optionally, the at least one air blower is a plurality of air blowers, and the plurality of air blowers are distributed at intervals in the transverse direction.

[0024] Optionally, the evaporator is in a flat cubic shape and is placed horizontally in the cooling chamber.

[0025] Optionally, a front return air inlet is formed on the front wall of the housing, so that the return air from the storage compartment enters the cooling chamber through the front return air inlet to be cooled by the evaporator.

[0026] Optionally, the storage liner is a freezing liner, and the storage compartment is a freezing compartment.

[0027] In the refrigerator of the present invention, the blower is arranged in the air supply duct, so that the blower no longer occupies the space of the cooling chamber, and the dimension of the evaporator in the front-to-back direction can be increased, and the dimension of the evaporator in the height direction can be reduced, so as to avoid the influence of the height of the evaporator on the height of the cooling chamber, and it is no longer necessary to increase the dimension of the cooling chamber in the vertical direction due to accommodating the blower, so that the space occupied by the cooling chamber is reduced from two aspects, and the storage volume of the storage compartment above the cooling chamber is increased. In addition, the distance between the blower and the evaporator is relatively increased, so as to reduce the degree of frost on the blades, and the distance between the blower and the drain port is relatively increased, so as to reduce the amount of hot air sucked by the blower from the drain port, thereby reducing the degree of influence of the hot air on the temperature rise of the storage compartment. Furthermore, since the dimension of the evaporator in the front-to-back direction is increased, the coverage of the drain port is increased, and the hot air entering from the drain port can be cooled by the evaporator, so as to avoid the temperature rise of the storage compartment.

[0028] Furthermore, the refrigerator of the present invention can completely avoid the problem of frosting on the blades of the blower by improving the structure of the air supply duct and the position of the blower, thereby improving the refrigeration performance of the refrigerator.

[0029] 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

[0030] 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:

[0031] Figure 1 is a schematic diagram of a refrigerator according to one embodiment of the present invention, wherein there is one air blower;

[0032] Figure 2 is a schematic diagram of a refrigerator according to one embodiment of the present invention, wherein there are two air blowers;

[0033] Figure 3 is a schematic diagram of a refrigerator according to one embodiment of the present invention, wherein there are three air blowers;

[0034] Figure 4 is a side cross-sectional schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the blower is located at the lower end of the air supply duct;

[0035] Figure 5 is a side cross-sectional schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the blower is located at the upper end of the air supply duct;

[0036] Figure 6is a side cross-sectional schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the blower is located approximately in the middle of the air supply duct in the vertical direction;

[0037] Figure 7 is a side cross-sectional schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the blower is an axial flow blower and is located at the upper end of the air supply duct;

[0038] Figure 8 is a side cross-sectional schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the blower is a cross-flow blower and is located at the upper end of the air supply duct;

[0039] Fig. 9 is a side cross-sectional schematic diagram of a refrigerator according to an embodiment of the present invention, wherein the blower is located at the front end of the air supply duct;

[0040] Fig.10 is a partially exploded schematic diagram of a refrigerator according to one embodiment of the present invention; and

[0041] Fig.11 is a partial schematic diagram of a refrigerator according to one embodiment of the present invention. DETAILED DESCRIPTION

[0042] This embodiment provides a refrigerator 100. Figures 1 to 11 To describe the refrigerator 100 of the embodiment of the present invention. For the convenience of description, the directions such as "upper", "lower", "front", "back", "top", "bottom", "lateral" mentioned in the specification are defined according to the spatial position relationship of the refrigerator 100 under normal working conditions. For example, Figure 1 As shown, the horizontal direction refers to a direction parallel to the width direction of the refrigerator 100 .

[0043] The refrigerator 100 includes a storage liner 130 located at the bottom, a cover 135, an evaporator 101 and at least one blower 103. The cover 135 is arranged in the space defined by the storage liner 130, and is configured to divide the space into a cooling chamber 136 located below and a storage compartment 131 located above the cooling chamber. The evaporator 101 is arranged in the cooling chamber 136, and is configured to cool the air flowing through it to form cooling air supplied to the storage compartment 131. The blower 103 is configured to cause the air to circulate between the cooling chamber 136 and the storage compartment 131, so that cooling air can be continuously supplied to the storage compartment 131 to ensure that the temperature of the storage compartment 131 can reach the corresponding target temperature.

[0044] In traditional refrigerators, the bottom space of the refrigerator is generally a storage space. The storage space is located at a low position, and users need to bend down or squat to take and put items in the bottom storage space, which is inconvenient for users, especially for the elderly. In addition, the evaporator of a traditional refrigerator is generally located behind the bottom storage space, occupying the rear area of ​​the bottom storage space, which reduces the depth of the bottom storage space. Furthermore, the compressor cabin of a traditional refrigerator is generally located behind and below the bottom storage space. The bottom storage space inevitably has to give way to the compressor cabin, resulting in an irregular shape of the bottom storage space, which further reduces the volume of the bottom storage space and is not convenient for storing large and difficult to divide items.

[0045] In order to solve various problems existing in traditional refrigerators, before the present application, the inventor of the present application designed a new type of refrigerator with an evaporator placed at the bottom. The common point between the new type of refrigerator and the refrigerator 100 of the present embodiment is that the cooling chamber 136 is defined by the storage liner 130 located at the bottom, and the storage compartment 131 defined by the storage liner 130 is located above the cooling chamber 136. In the refrigerator 100 of this design, since the space at the bottom of the refrigerator 100 is the cooling chamber 136, the height of the storage compartment 131 located above the cooling chamber 136 is raised, and the degree of bending of the user when taking and placing items in the storage compartment 131 is reduced, thereby improving the user's experience. In addition, the evaporator 101 no longer occupies the rear space of the storage compartment 131, ensuring the depth of the storage compartment 131. Moreover, the press cabin can be located at the rear and lower part of the cooling chamber 136. The cooling chamber 136 makes way for the press cabin, and the storage compartment 131 no longer needs to make way for the press cabin. It can be formed into a larger and regularly shaped rectangular space, which is convenient for placing larger items that are difficult to divide, thereby solving the pain point of not being able to place larger items in the storage compartment 131.

[0046] However, in the novel refrigerator, the blower 103 is located in the cooling chamber, behind the evaporator 101. Since the blower 103 itself has a certain height, the height of the upper wall of the cooling chamber 136 is relatively high, which increases the height space occupied by the cooling chamber 136. Moreover, since the blower 103 is located behind the evaporator 101, it occupies a part of the space in the front-to-back direction, which limits the size of the evaporator 101 in the front-to-back direction. In order to ensure a reasonable heat exchange area of ​​the evaporator 101, the height of the evaporator 101 can only be increased in the height direction, which further causes the height of the upper wall of the cooling chamber 136 to be relatively high, occupying a large space and reducing the volume of the storage room 131 located above the cooling chamber 136. In addition, if there is a gap between the cover 135 and the evaporator 101, the return air of the storage room 131 will pass through the gap and enter the blower 103, causing the blades of the blower 103 to frost, resulting in a decrease in the speed of the blower 103, reducing the air volume, and having an adverse effect on the refrigeration performance. Furthermore, since the air blower 103 is close to the drain port 130b (the bottom wall of the storage liner 130 is formed with a drain port 130b for discharging the defrost water of the evaporator 101), the hot air outside the refrigerator enters the cooling chamber 136 through the drain port 130b, and is easily directly sucked into the cooling chamber 136 by the air blower 103 without being cooled by the evaporator 101, and is sent to the storage compartment 131, causing the temperature of the storage compartment 131 to rise, affecting the freshness of the food.

[0047] In order to solve the above problems, the inventor of the present application has improved the location of the blower 103, and set the blower 103 in the air supply duct 134, so that the blower 103 no longer occupies the space of the cooling chamber 136, and the dimension of the evaporator 101 in the front-to-back direction can be increased, and the dimension of the height direction can be reduced, so as to avoid the influence of the height of the evaporator 101 on the height of the cooling chamber 136, and it is no longer necessary to increase the dimension of the cooling chamber in the vertical direction to accommodate the blower 103, so that the space occupied by the cooling chamber 136 is reduced from two aspects, and the storage volume of the storage room 131 above the cooling chamber is increased. In addition, the distance between the blower 103 and the evaporator 101 is relatively increased, which can reduce the degree of frost on the blades, and the distance between the blower 103 and the drain port 130b is relatively increased, which can reduce the amount of hot air sucked by the blower 103 from the drain port 130b, thereby reducing the influence of the hot air on the temperature rise of the storage room. Furthermore, since the size of the evaporator 101 in the front-to-back direction increases, the coverage of the drain port 130 b is increased, and the hot air entering from the drain port 130 b can be cooled by the evaporator 101 to prevent the temperature of the storage compartment 131 from rising.

[0048] In some embodiments, Figure 1 As shown, the blower 103 may be one to reduce the cost. Figure 2 , Figure 3As shown, there can be multiple blowers 103, where multiple means two or more, and the multiple blowers 103 are distributed at intervals in the horizontal direction to increase the air supply volume and improve the refrigeration speed of the refrigerator 100. Figures 1 to 3 The casing 135 is omitted to show the evaporator 101 .

[0049] In some embodiments, a vertical partition plate 137 may be provided in the space defined by the storage liner 130, which divides the space defined by the storage liner 130 into two storage compartments 131 distributed laterally. At least one blower 103 is provided in the section corresponding to the air supply duct 134 and one of the storage compartments 131, and at least another blower 103 is provided in the section corresponding to the air supply duct 134 and another storage compartment 131, so as to ensure that both storage compartments 131 have a large air supply volume. For example, Figure 3 As shown, two blowers 103 are arranged in the section corresponding to the air supply duct 134 and the storage compartment 131 on the left side, and one blower 103 is arranged in the section corresponding to the air supply duct 134 and the storage compartment 131 on the right side. The storage compartment 131 on the left side can have a larger air supply volume than the storage compartment 131 on the right side, and can be used as a freezing compartment, while the storage compartment 131 on the right side can be used as a temperature-changing compartment.

[0050] In some embodiments, the air supply duct 134 may be disposed on the front side of the rear wall of the storage liner 130, and the front wall thereof is formed with at least one first air outlet 134a for blowing cooling air to the storage compartment 131, and at least one blower 103 is disposed at the lower end of the air supply duct 134. In this embodiment, since the blower 103 is located at the lower end of the air supply duct 134, the thickness of the air supply duct 134 is increased only at the location where the blower 103 is arranged, thereby ensuring the depth dimension of the storage compartment 131. Among them, there may be multiple first air outlets 134a, such as Figure 4 As shown, the plurality of first air outlets 134 a are spaced apart from top to bottom to supply air to different areas in the height direction of the storage compartment 131 , which is beneficial to maintaining the temperature uniformity of the storage compartment 131 .

[0051] Further, in a preferred embodiment, Figure 4 As shown, a rearwardly protruding accommodation groove 130a may be formed at the lower end of the rear wall of the storage liner 130, the lower rear wall surface of the air supply duct 134 may be adapted to the rear wall of the accommodation groove 130a, the lower front wall surface of the air supply duct 134 protrudes forward, and the air blower 103 is arranged in the space defined by the lower rear wall surface and the lower front wall surface of the air supply duct 134. Due to the existence of the accommodation groove 130a, the size of the lower front wall surface of the air supply duct 134 protruding forward is reduced, thereby further reducing the effect of the air blower 103 on the increase in the thickness of the air supply duct 134.

[0052] In some embodiments, Figures 5 to 9 As shown, the air supply duct 134 may include a first duct section 1341 and a second duct section 1342 which are connected in sequence in the direction of air flow, at least one blower 103 is arranged in the second duct section 1342, and is configured to cause the cooling air cooled by the evaporator 101 to flow through the first duct section 1341 to the second duct section 1342, and the second duct section 1342 is formed with at least one second air outlet 1342a for blowing cooling air toward the storage compartment 131. In this embodiment, the air supply duct 134 is improved, and the air supply duct 134 is designed to be a first duct section 1341 located upstream and a second duct section 1342 located downstream, and the blower 103 is arranged in the second duct section 1342, so as to further increase the distance between the blower 103 and the evaporator 101. If there is a gap between the cover 135 and the evaporator 101, the return air of the storage compartment 131 will first flow through the first duct section 1341 and be cooled by the cooling air cooled by the evaporator 101, thereby completely avoiding the problem of frosting of the blades of the blower 103. In addition, the distance between the blower 103 and the drain port 130b is further increased, and the hot air that enters through the drain port 130b and is not cooled by the evaporator 101 first flows through the first duct section 1341 and is cooled by the cooling air cooled by the evaporator 101, thereby completely avoiding the adverse effect on the temperature of the storage compartment 131, which is conducive to improving the quality of food preservation.

[0053] See also Figures 5 to 8 The first air duct section 1341 may be located at the front side of the rear wall of the storage liner 130, the second air duct section 1342 may be located at the front side of the first air duct section, and the front wall of the second air duct section 1342 is formed with at least one second air outlet 1342a. There may be multiple second air outlets 1342a, which are spaced and distributed from top to bottom in order to supply air to different areas in the height direction of the storage compartment 131, which is conducive to maintaining the temperature uniformity of the storage compartment 131.

[0054] See also Figure 5 , Figure 7 and Figure 8As shown, the first air duct section 1341 can extend upward to a position adjacent to the top wall of the storage liner 130, the upper end of the second air duct section 1342 can extend to a position adjacent to the top wall of the storage liner 130, and the lower end can extend to connect with the cover 135, and the top of the second air duct section 1342 is higher than the top of the first air duct section 1341, and the air supply fan 103 is located at a position where the second air duct section 1342 is located above the first air duct section 1341, that is, the air supply fan 103 is roughly located near the top of the air supply duct 134, and the thickness of the air supply duct 134 is increased only at the position where the air supply duct 103 is arranged, while the thickness of the entire section of the air supply duct 134 located below the air supply fan 103 is relatively small, which has little impact on the volume of the storage compartment 131.

[0055] Among them, the front wall of the second air duct section 1342 is located above the air supply fan 103 and may be formed with at least one second air outlet 1342a, and the front wall of the second air duct section 1342 is located below the air supply fan 103 and may be formed with multiple second air outlets 1342a distributed in sequence from top to bottom. The air supply fan 103 can draw air from its rear side and exhaust air to the section of the second air duct section 1342 located above the air supply fan 103 and the section located below the air supply fan 103, respectively, to ensure that the cooling air can flow through the entire area in the height direction of the storage room 131, thereby improving the temperature uniformity of the storage room 131.

[0056] See also Figure 6 The first air duct section 1341 can extend upward to a position corresponding to the vertically approximately middle position of the rear wall of the storage liner 130, and the upper end of the second air duct section 1342 can extend to the top wall adjacent to the storage liner 130, and the lower end can extend to connect with the cover 135, and the air supply fan 103 is located at the position where the second air duct section 1342 is located above the first air duct section 1341, that is, the air supply fan 103 is approximately in the approximately middle position of the air supply duct 134, and sucks air from the rear side thereof. The air is exhausted to the section of the second air duct section 1342 located above the air blower 103 and the section located below the air blower 103 respectively, and the front wall of the second air duct section 1342 located above the air blower 103 is formed with at least one second air outlet 1342a, and the front wall of the second air duct section 1342 located below the air blower 103 is formed with multiple second air outlets 1342a spaced apart from top to bottom, so as to supply air to various areas in the height direction of the storage compartment 131 respectively.

[0057] In any of the above embodiments, the blower 103 may be a centrifugal blower, an axial flow blower or a cross flow blower. Figures 4 to 6 As shown, the blower 103 is a centrifugal blower, and the rotation axis of the centrifugal blower extends in the front-to-back direction. Figure 4 In the embodiment shown, based on the position of the blower 103, the blower 103 needs to draw air from the front side and exhaust air upward. Figure 5and Figure 6 In the illustrated embodiment, based on the position of the blower 103, the blower 103 draws air from its rear side and exhausts air upward and downward respectively. Figure 7 In the illustrated embodiment, the blower 103 is an axial flow blower, and the rotation axis of the axial flow blower can be arranged to be tilted upward from the back to the front, which is conducive to causing the cooling air to flow to the section of the second air duct section located above the blower 103 and the section located below the blower 103. Figure 8 In the illustrated embodiment, the blower 103 is a cross-flow blower, the rotating axis of which can be extended laterally and exhaust air at its front end, so that the cooling air flows to the section of the second air duct section located above the blower 103 and the section located below the blower 103 respectively.

[0058] In some embodiments, Fig. 9 As shown, the first air duct section 1341 includes a first rear section 13411 located at the front side of the rear wall of the storage liner 130 and extending upward to the top wall adjacent to the storage liner 130, and a first upper section 13412 extending forward from the upper end of the first rear section 13411, and the second air duct section 1342 may include a second upper section 13421 located below the first upper section 13412 and a second rear section 13422 extending downward from the rear end of the second upper section 13421 and located in front of the first rear section 13411, and at least one air blower 103 is arranged at a position near the front end of the second upper section 13421, at least one second air outlet 1342a is formed on the lower wall of the second upper section 13421 near the front end, and at least one second air outlet 1342a is formed on the front wall of the second rear section 13422. In this way, air ducts are provided on the front side of the rear wall and the lower side of the top wall of the storage liner 130, thereby increasing the uniformity of air supply to the storage compartment 131. Furthermore, since the second air outlet 1342a on the second upper section 13421 is close to the front end of the second upper section 13421 (i.e., close to the door body 132) and supplies air downward, an air curtain can be formed in front of the storage compartment 131, which is beneficial to maintaining the temperature of the storage compartment 131 stable and reducing the impact of opening and closing the door on the temperature of the storage compartment 131.

[0059] In this embodiment, the blower 103 may be a centrifugal blower, an axial flow blower or a cross flow blower. Fig. 9 In the illustrated embodiment, the blower 103 is a centrifugal fan, and the rotation axis of the centrifugal fan extends vertically to suck air from its upper end and discharge air to its lateral sides, so as to cause the cooling air to blow downward toward the storage compartment 131 through the second air outlet 1342a on the second upper section 13421, and blow forward toward the storage compartment 131 through the second air outlet 1342a on the second rear section 13422.

[0060] In any of the above embodiments, the air supply duct 134 may be defined by at least two duct covers. Figure 4 In the embodiment shown, the air supply duct 134 is defined by two duct cover plates located on the front side of the rear wall of the storage liner 130. Figures 5 to 9 In the illustrated embodiment, the first duct section 1341 of the air supply duct 134 is defined by the duct cover and the inner wall of the storage liner 130, and the second duct section 1342 of the air supply duct 134 is defined by the aforementioned duct cover and another duct cover.

[0061] See also Figure 4 The evaporator 101 as a whole can be placed horizontally in the cooling chamber in a flat cubic shape, that is, the length and width of the evaporator 101 are parallel to the horizontal plane, the thickness surface is placed perpendicular to the horizontal plane, 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, the evaporator 101 is prevented from occupying more space, and the storage volume of the storage room 131 above the cooling chamber 136 is further guaranteed.

[0062] See also Figure 4 The front wall of the cover 135 may be formed with a front return air inlet 135a, and the return air of the storage compartment 131 may enter the cooling chamber 136 through the front return air inlet 135a to be re-cooled by the evaporator 101, thereby continuously supplying cooling air to the storage compartment 131. Since the front return air inlet 135a is formed on the front side of the cover 135, and the cover 135 is located in the space defined by the storage liner 130, the storage compartment 131 can be directly connected to the cooling chamber 136 through the front return air inlet 135a, without the need to set a return air duct, eliminating complex design and installation, and reducing costs.

[0063] The aforementioned storage liner 130 may be a freezer liner, and accordingly, the storage compartment 131 may be a freezer compartment, and the freezer compartment has the lowest temperature compared to the temperature-changing room and the refrigerating room, and the cooling room 136 is distributed below the freezer compartment, which is conducive to maintaining the lowest temperature of the freezer compartment. A freezer compartment door 132 is provided on the front side of the freezer liner to open and close the storage freezer compartment.

[0064] The refrigerator 100 may further include a refrigerating liner 120 and a variable temperature liner 140. The variable temperature liner 140 may be located above the storage liner 130, and the refrigerating liner 120 may be located above the variable temperature liner 140. A variable temperature chamber 141 is defined in the variable temperature liner 140, and a variable temperature chamber door 142 is provided at the front side of the variable temperature liner 140 to open and close the corresponding variable temperature chamber 141. The refrigerating liner 120 defines a refrigerating chamber 121, and a refrigerating chamber door 122 is provided at the front side of the refrigerating liner 120 to open and close the refrigerating chamber 121.

[0065] The refrigerator 100 may also include a variable temperature chamber supply air duct (not shown) and a variable temperature chamber return air duct (not shown). The variable temperature chamber supply air duct can be controllably connected to the supply air duct 134 through a variable temperature chamber air door, and the variable temperature chamber return air duct has an inlet connected to the variable temperature inner tank 140 and an outlet connected to the cooling chamber 136 to transport the return air flow of the variable temperature chamber 141 to the cooling chamber 136.

[0066] The refrigerating chamber 121 may have an independent refrigerating evaporator 124 and a refrigerating blower 125, which are arranged in a refrigerating chamber air supply duct 123 located on the inner side of the rear wall of the refrigerating liner 120, and the refrigerating chamber air supply duct 123 has a refrigerating chamber air supply port 123a for supplying air to the refrigerating chamber 121.

[0067] As those skilled in the art will appreciate, the refrigerator 100 further includes a shell 110 , and the shell 110 and each inner tank are insulated by a foam layer. Correspondingly, the compressor cabin and the cooling chamber 136 are also insulated by a foam layer.

[0068] See also Fig.10 and Fig.11 , the compressor cabin is equipped with a compressor 104, a heat dissipation fan 106 and a condenser 105 which are spaced in sequence along the horizontal direction. Before this application, the design idea of ​​the compressor cabin by those skilled in the art was usually to open a rear air inlet facing the condenser 105 and a rear air outlet 1162a facing the compressor 104 on the rear wall of the compressor cabin, so as to complete the circulation of the heat dissipation airflow at the rear of the compressor cabin; or to form ventilation holes on the front wall and the rear wall of the compressor cabin respectively, so as to form a heat dissipation circulation air path in the front-to-back direction. However, in order to reduce the space where the refrigerator 100 is located, the ventilation space at the rear of the refrigerator is generally small, which affects the heat dissipation effect. Especially for built-in refrigerators, in order to improve the heat dissipation effect, the ventilation space at the rear of the refrigerator needs to be increased, which increases the space occupied by the refrigerator.

[0069] The present embodiment improves the heat dissipation structure of the refrigerator 100, which can greatly improve the heat dissipation effect of the compressor compartment and reduce the space occupied by the refrigerator 100. Specifically, the bottom wall of the refrigerator 100 is defined with a bottom air inlet 110a adjacent to the condenser and a bottom air outlet 110b adjacent to the compressor 104 arranged horizontally. The refrigerator 100 completes the circulation of the heat dissipation airflow at its bottom, making full use of the space between the refrigerator 100 and the supporting surface. There is no need to increase the ventilation space at the rear of the refrigerator 100, while reducing the space occupied by the refrigerator 100 and ensuring good heat dissipation of the compressor compartment, which fundamentally solves the pain point of the inability to balance the heat dissipation of the compressor compartment and the space occupied by the built-in refrigerator 100, and is of particular significance.

[0070] The cooling fan 106 is configured to draw ambient air from the surrounding environment of the bottom air inlet 110a and force the air to pass through the condenser 105 first, then pass through the compressor 104, and then flow to the surrounding environment from the bottom air outlet 110b, thereby dissipating heat from the condenser 105 and the compressor 104.

[0071] 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 .

[0072] In addition, when faced with the problem of improving the heat dissipation effect of the compressor cabin, technical personnel in this field usually increase the number of rear air inlet holes and rear air outlet holes 1162a on the rear wall of the compressor cabin to expand the ventilation area, or increase the heat exchange area of ​​the condenser 105, such as using a U-shaped condenser with a larger heat exchange area.

[0073] The applicant of the present invention creatively realized that the larger the heat exchange area of ​​the condenser 105 and the ventilation area of ​​the compressor compartment, the better. In the conventional design scheme of increasing the heat exchange area of ​​the condenser 105 and the ventilation area of ​​the compressor compartment, the problem of uneven heat dissipation of the condenser 105 will arise, which will have an adverse effect on the refrigeration system of the refrigerator 100.

[0074] To this end, the applicant of the present invention has gone beyond the conventional design ideas and made further improvements to the heat dissipation structure of the compressor cabin. The rear wall of the compressor cabin and the plate section 1162 corresponding to the compressor 104 are formed with at least one rear air outlet 1162a, and the plate section 1161 of the back plate 116 (the rear wall of the compressor cabin) facing the condenser 105 is a continuous plate surface, that is to say, there are no heat dissipation holes on the plate section 1161 of the back plate 116 facing the condenser 105. In this way, the heat dissipation airflow entering the compressor cabin can be sealed at the condenser 105, so that the ambient air entering from the bottom air inlet 110a is more concentrated at the condenser 105, thereby ensuring the heat exchange uniformity of each condensation section of the condenser 105, and being conducive to forming a better heat dissipation airflow path, which can also achieve better heat dissipation effect.

[0075] Furthermore, since the plate section 1161 of the back plate 116 facing the condenser 105 is a continuous plate surface without air inlet holes, it avoids the situation in the conventional design where both the air outlet and the air inlet are concentrated at the rear of the compressor cabin, resulting in the hot air blown out from the compressor cabin not being cooled by the ambient air in time and re-entering the compressor cabin, which has an adverse effect on the heat exchange of the condenser 105, thereby ensuring the heat exchange efficiency of the condenser 105.

[0076] In particular, the condenser 105 may include a first straight section 1051 extending transversely, a second straight section 1052 extending forward and backward, and a transition curved section (not numbered) connecting the first straight section 1051 and the second straight section 1052, thereby forming an L-shaped condenser 105 with a suitable heat exchange area. The plate section 1161 corresponding to the rear wall (back plate 116) of the compressor cabin and the condenser 105 is the plate section 1161 of the back plate 116 facing the first straight section 1051.

[0077] The two transverse side walls of the compressor cabin may be respectively formed with a side vent 119a, and the side vent 119a may be covered with a vent cover 108, and the vent cover 108 is formed with grille-type vent holes; the outer shell of the refrigerator 100 includes two transverse box side panels 111, the two box side panels 111 extend vertically to form two side walls of the refrigerator 100, and the two box side panels 111 respectively form a side opening 111a connected to the corresponding side vent 119a, so that the heat dissipation airflow flows to the outside of the refrigerator 100. The ambient airflow entering from the side vent 119a directly exchanges heat with the second straight section 1052, and the ambient air entering from the bottom air inlet 110a directly exchanges heat with the first straight section 1051, thereby further concentrating more ambient air entering the compressor cabin at the condenser 105, ensuring the uniformity of the overall heat dissipation of the condenser 105.

[0078] See again Fig.10 and Fig.11 The refrigerator 100 may include a bottom plate, a support plate 112, two side plates 119 and a vertically extending back plate 116. The support plate 112 constitutes the bottom wall of the compressor cabin, which is used to carry the compressor 104, the heat dissipation fan 106 and the condenser 105. The two side plates 119 respectively constitute the two lateral side walls of the compressor cabin, and the vertically extending back plate 116 constitutes the rear wall of the compressor cabin.

[0079] The bottom plate may include a bottom horizontal section 113 located on the front side of the bottom and a bending section extending backward and upward from the rear end of the bottom horizontal section 113, wherein the bending section extends to the top of the support plate 112, and the compressor 104, the heat dissipation fan 106 and the condenser 105 are arranged on the support plate 112 in sequence along the horizontal direction and are located in the space defined by the support plate 112, the two side panels, the back panel 116 and the bending section.

[0080] The support plate 112 and the bottom horizontal section 113 together constitute the bottom wall of the refrigerator 100, and the support plate 112 and the bottom horizontal section 113 are spaced apart so as to define a bottom opening by using the rear end of the bottom horizontal section 113 and the front end of the support plate 112, wherein the bending section has an inclined section 114 located above the bottom air inlet 110a and the bottom air outlet 110b. The two side panels extend upward from the two lateral sides of the support plate 112 to the two lateral sides of the bending section respectively to close the two lateral sides of the compressor cabin; the back panel 116 extends upward from the rear end of the support plate 112 to the rear end of the bending section.

[0081] Specifically, the bending section may include a vertical section 1131, the aforementioned inclined section 114 and a top horizontal section 115, the vertical section 1131 extends upward from the rear end of the bottom horizontal section 113, the inclined section 114 extends rearward and upward from the upper end of the vertical section 1131 to the top of the support plate 112, and the top horizontal section 115 extends rearward from the rear end of the inclined section 114 to the back plate to shield the compressor 104, the cooling fan 106 and the top of the condenser 105.

[0082] The refrigerator 100 also includes a partition 117, which is arranged behind the bending section, with its front portion connected to the rear end of the bottom horizontal section 113, and its rear portion connected to the front end of the support plate 112, and is configured to divide the bottom opening into a horizontally arranged bottom air inlet 110a and a bottom air outlet 110b.

[0083] As can be seen from the foregoing, the bottom air inlet 110a and the bottom air outlet 110b of the present embodiment are defined by a partition 117, a support plate 112, and a bottom horizontal section 113, thereby forming a groove-shaped bottom air inlet 110a and a bottom air outlet 110b with a larger opening size, thereby increasing the air inlet and outlet area, reducing the air inlet resistance, making the air flow smoother, and making the manufacturing process simpler, thereby making the overall stability of the compressor cabin stronger.

[0084] In particular, the applicant of the present invention creatively realized that the slope structure of the inclined section 114 can guide and rectify the incoming air flow, so that the air flow entering from the bottom air inlet 110a can flow to the condenser 105 more concentratedly, avoiding the air flow being too dispersed and unable to pass more through the condenser 105, thereby further ensuring the heat dissipation effect of the condenser 105; at the same time, the slope of the inclined section 114 guides the outlet air of the bottom air outlet 110b to the front side of the ground air outlet, so that the outlet air flow can flow out of the compressor cabin more smoothly, thereby further improving the smoothness of the air flow.

[0085] More particularly, in a preferred embodiment, the angle between the inclined section 114 and the horizontal plane is less than 45°. In this embodiment, the inclined section 114 has a better effect of guiding and rectifying the airflow.

[0086] Furthermore, surprisingly, the inventors of the present application creatively realized that the slope of the inclined section 114 has a better suppressing effect on airflow noise. In prototype tests, the noise of the compressor cabin having the aforementioned specially designed inclined section 114 can be reduced by more than 0.65 decibels.

[0087] In addition, in the conventional refrigerator 100, the bottom of the refrigerator 100 generally has a bearing plate of a substantially flat structure, and the compressor 104 is arranged on the inner side of the bearing plate. The vibration generated by the operation of the compressor 104 has a greater impact on the bottom of the box 100. In this embodiment, as mentioned above, the bottom of the refrigerator 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 100. In addition, by designing the refrigerator 100 as the above-mentioned ingenious special structure, the structure of the bottom of the refrigerator 100 is compact and the layout is reasonable, which reduces the overall volume of the refrigerator 100, and at the same time fully utilizes the space at the bottom of the refrigerator 100, ensuring the heat dissipation efficiency of the compressor 104 and the condenser 105.

[0088] The upper end of the condenser 105 may be provided with a wind shield 1056, which may be a wind shield sponge to fill the space between the upper end of the condenser 105 and the bent section. That is to say, the wind shield 1056 covers the upper ends of the first straight section 1051, the second straight section 1052 and the transition curved section, and the upper end of the wind shield 1056 should abut against the bent section to seal the upper end of the condenser 105, so as to prevent part of the air entering the compressor cabin from passing through the space between the upper end of the condenser 105 and the bent section instead of passing through the condenser 105, thereby allowing as much air as possible entering the compressor cabin to exchange heat through the condenser 105, thereby further improving the heat dissipation effect of the condenser 105.

[0089] In some embodiments, the refrigerator 100 may further include a windshield strip 107 extending forward and backward, the windshield strip 107 is located between the bottom air inlet 110a and the bottom 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 bottom air inlet 110a and the bottom air outlet 110b are completely isolated by the windshield strip 107 and the partition 117, so that when the refrigerator 100 is placed on a supporting surface, the space between the bottom wall of the refrigerator 100 and the supporting surface is horizontally separated. The bottom air inlet 110a and the bottom air outlet 110b are connected to each other through the bottom air inlet 110a on the other side of the wind shield 107, thereby completely isolating the bottom air inlet 110a and the bottom air outlet 110b, thereby ensuring that the outside air entering the condenser 105 and the heat dissipation air discharged from the compressor 104 will not flow into each other, thereby further ensuring the heat dissipation efficiency.

[0090] 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 storage liner located at the bottom defines a space therein; a cover shell, disposed in the space defined by the storage liner, and configured to separate the space into a cooling chamber located below and a storage compartment located above the cooling chamber; an evaporator disposed in the cooling chamber and configured to cool air flowing therethrough to form cooled air supplied to the storage compartment; an air supply duct, disposed in the space and configured to deliver the cooling air to the storage compartment; at least one blower, disposed in the air supply duct and configured to cause air to circulate between the cooling chamber and the storage compartment; The air supply duct comprises a first duct section and a second duct section which are sequentially connected in the air flow direction; At least one of the blowers is disposed in the second air duct section and is configured to cause the cooling air cooled by the evaporator to flow through the first air duct section to the second air duct section; The second air duct section is formed with at least one second air outlet for blowing the cooling air toward the storage compartment; The first air duct section includes a first rear section located at the front side of the rear wall of the storage liner and extending upward to the top wall adjacent to the storage liner, and a first upper section extending forward from the upper end of the first rear section; The second air duct section includes a second upper section located below the first upper section and a second rear section extending downward from the rear end of the second upper section and located in front of the first rear section; At least one of the air blowers is disposed at a position near the front end of the second upper section, at least one of the second air outlets is formed at a position near the front end of the lower wall of the second upper section, and at least one of the second air outlets is formed at a front wall of the second rear section; The storage liner is a freezing liner, and the storage compartment is a freezing compartment.

2. The refrigerator according to claim 1, wherein The air supply duct is arranged on the front side of the rear wall of the storage liner, and the front wall thereof is formed with at least one first air outlet for blowing the cooling air toward the storage compartment; At least one of the air blowers is disposed at the lower end of the air supply duct.

3. The refrigerator according to claim 2, wherein A accommodating groove protruding backwards is formed at the lower end of the rear wall of the storage liner; The rear wall surface of the lower end of the air supply duct is adapted to the rear wall of the accommodating groove, and the front wall surface of the lower end of the air supply duct protrudes forward; The air blower is arranged in a space defined by a lower rear wall surface and a lower front wall surface of the air supply duct.

4. The refrigerator according to claim 1, wherein The at least one blower is a plurality of blowers, and the plurality of blowers are distributed at intervals in the lateral direction.

5. The refrigerator according to claim 1, wherein The evaporator is in a flat cubic shape and is horizontally placed in the cooling chamber.

6. The refrigerator according to claim 1, wherein The front wall of the housing is formed with a front return air inlet, so that the return air from the storage compartment enters the cooling chamber through the front return air inlet to be cooled by the evaporator.

Images