refrigerator

Abstract

The present invention provides a refrigerator, which comprises a box body; a freezing liner, which is arranged in the box body and defines a freezing chamber with an open front side; a cover shell, which covers the bottom of the freezing liner to enclose a cooling chamber for accommodating an evaporator at the bottom of the freezing chamber; an air inlet duct, which is configured to guide the cold air in the cooling chamber into the freezing chamber; a freezing drawer, which can be pushed and pulled forward and backward and arranged in the freezing chamber, after the freezing drawer enters the freezing chamber, the lower part of its front end plate blocks the front side of the cover shell; and the top of the front side of the cover shell has an inclined portion which gradually extends upward from the front to the back, and a plurality of return air holes are opened on the inclined portion to allow the freezing chamber to return air to the cooling chamber.

Description

Technical Field

[0001] The invention relates to the field of household electrical appliances, and in particular to a refrigerator. Background Art

[0002] Existing refrigerators are generally equipped with multiple storage compartments, which can be configured as refrigerators, freezers, and temperature-changing chambers according to different uses. These compartments are generally arranged from top to bottom. In order to save space, the storage space at the bottom is close to the ground, which makes it very inconvenient for users to use the storage compartment at the bottom of the refrigerator. They often need to squat to operate, which affects the user experience.

[0003] In addition, when the storage compartment at the bottom of the refrigerator is set to open in a drawer-style, since a press chamber is often set at the rear side of the bottom of the refrigerator, the press chamber needs to occupy a part of the drawer compartment, making the drawer have an irregular shape, resulting in that the storage compartment at the bottom of the refrigerator cannot be fully utilized. Moreover, the drawer at the bottom of the refrigerator also needs to be set very deep, and the stored items need to be stacked when in use. When users take out items, they need to spend too much time to search, which brings inconvenience. Summary of the invention

[0004] An object of the present invention is to provide a refrigerator that increases the height of a freezing chamber from the ground and the space utilization efficiency of the freezing chamber, and facilitates the return of air from the freezing chamber to the cooling chamber.

[0005] A further object of the present invention is to enable the refrigerator to be embedded in a cabinet so that the condenser and the compressor can be effectively cooled and the position of the windshield strip can be easily adjusted to adjust the distance between its bottom end and the bottom surface of the cabinet.

[0006] In particular, the present invention provides a refrigerator comprising:

[0007] Box;

[0008] A freezing liner is disposed in the box body and defines a freezing chamber with an open front side;

[0009] A cover shell, which covers the bottom of the freezing tank to enclose a cooling chamber at the bottom of the freezing chamber for accommodating the evaporator;

[0010] an air inlet duct configured to direct cold air in the cooling chamber into the freezing chamber;

[0011] The freezer drawer can be pushed and pulled forward and backward and is arranged in the freezer compartment. After the freezer drawer enters the freezer compartment, the lower part of the front end plate of the freezer drawer blocks the front side of the cover shell; and

[0012] The top of the front side of the cover shell is provided with an inclined portion which gradually extends upward from the front to the rear, and a plurality of return air holes are provided on the inclined portion to allow the return air from the freezing chamber to the cooling chamber.

[0013] Optionally, multiple return air holes are arranged in multiple rows on the inclined portion, and each row of return air holes is spaced apart along the lateral direction of the refrigerator; and above each row of return air holes there is a water baffle extending outward from the surface of the inclined portion, and the vertical plane where the front edge of the water baffle is located is closer to the front than the vertical plane where the front end of the row of return air holes is located, so as to receive dripping water in the freezer compartment and prevent water from entering the return air holes.

[0014] Optionally, the cover shell includes: a rear plate portion extending from the rear to the front; an inclined portion extending obliquely downward from the front end of the rear plate portion; and a front end portion extending downward from the front end of the inclined portion.

[0015] Optionally, the refrigerator also includes: a refrigerated liner, which is arranged in the box body and above the frozen liner, and defines a variable temperature chamber and a cold storage chamber located directly above the variable temperature chamber; two return air ducts, which are respectively arranged on the lateral sides of the box body, and the inlet of each return air duct is connected to the cold storage chamber and the variable temperature chamber, and the outlet is connected to the cooling chamber; and the air inlet duct is arranged on the inner side of the rear wall of the frozen liner and the refrigerated liner, and the bottom end thereof is connected to the cooling chamber, and has outlets respectively connected to the freezing chamber, the variable temperature chamber and the cold storage chamber.

[0016] Optionally, an air inlet fan is provided at the connection between the air inlet duct and the cooling chamber, and the air inlet fan is used to suck the cold in the cooling chamber into the air inlet duct.

[0017] Optionally, the refrigerator further comprises: two door bodies opening left and right, which are pivotally mounted on the front sides of the refrigerating chamber and the temperature-changing chamber to open and close the refrigerating chamber and the temperature-changing chamber.

[0018] Optionally, each return air hole is in the shape of a slit extending in the transverse direction of the refrigerator.

[0019] Optionally, a compressor compartment is provided on the rear side of the bottom of the box body, and the compressor compartment is connected to the external space below the box body through an air inlet and an air outlet which are laterally arranged side by side at the bottom of the box body; a condenser and a compressor are laterally arranged side by side in the compressor compartment; a convection fan is arranged in the compressor compartment and between the condenser and the compressor, and is used to cause air to blow from the condenser to the compressor; and a wind shield strip extending forward and backward is installed on the bottom surface of the box body and is located between the air inlet and the air outlet, so as to laterally separate the space between the bottom surface of the box body and the supporting surface when the refrigerator is placed on a supporting surface, so as to allow external air to enter the compressor compartment through the air inlet from one side of the wind shield strip, first cool the condenser, and then blow toward the compressor through the action of the convection fan, and finally flow out from the air outlet to the other side of the wind shield strip; and the wind shield strip is configured to rotate around an axis extending forward and backward, so as to adjust the distance between the bottom end of the wind shield strip and the bottom surface of the box body according to the degree of unevenness of the supporting surface, so that the bottom end of the wind shield strip can be close to the supporting surface.

[0020] Optionally, the wind shield strip includes a pivot shaft extending in the front-to-back direction and a wind shield strip body fixed to the pivot shaft and extending front-to-back; the refrigerator also includes two mounting plates fixed to the bottom surface of the box body and arranged front-to-back, each mounting plate is provided with a mounting hole, and the front and rear ends of the pivot shaft are respectively rotatably inserted into a mounting hole; a knob is fixedly mounted on the front end of the pivot shaft and located on the front side of the corresponding mounting plate, so that the user can rotate the knob to rotate the wind shield strip, and the knob has a radially outward extending tooth; and the front surface of the mounting plate located at the front end of the pivot shaft protrudes outward with a plurality of protrusions, and the plurality of protrusions are arranged at intervals along the circumference of the mounting hole, so that after the knob is rotated by a preset angle, the tooth is inserted between two adjacent protrusions, so that the two protrusions constrain the rotational freedom of the knob.

[0021] Optionally, the box body includes: a bottom plate, which includes a front bottom plate located on the front side of the bottom of the refrigerator, an inclined plate extending obliquely backward and upward from the rear end of the front bottom plate, and a rear top plate extending backward from the upper end of the inclined plate, the inclined plate constituting the front wall of the press chamber, and the rear top plate constituting the top wall of the press chamber; a support plate, located below the rear top plate, on which the compressor and condenser are mounted, and the front end of the support plate is spaced apart from the rear end of the front bottom plate to form an air inlet and an air outlet; two side panels and a back panel, used to form the lateral side walls and the rear wall of the press chamber; and a partition, arranged behind the middle of the inclined plate, the rear of which is connected to the convection fan, and the bottom is connected to a wind shield strip to separate the press chamber together with the convection fan.

[0022] The refrigerator of the present invention sets the cooling chamber directly below the freezing chamber. Compared with the prior art solution that sets the cooling chamber behind the freezing chamber, the solution of the present invention makes the depth of the freezing chamber larger, and can accommodate a longer drawer, which is conducive to storing large-volume items. Because the bottom wall of the freezing drawer is located at the top of the cover, the lower part of the front plate of the freezing drawer blocks the front side of the cover, so the return air hole is set on the inclined portion that extends gradually upward from front to back and is set on the top of the front side of the cover, which can avoid the freezing drawer blocking the return air.

[0023] Furthermore, in the refrigerator of the present invention, a water baffle is provided on the return air hole of the inclined portion, and the vertical plane where the front edge of the water baffle is located is closer to the front than the vertical plane where the front end of the row of return air holes is located, so as to receive dripping water in the freezing chamber and prevent water from entering the cooling chamber through the return air hole and forming frost or ice on the evaporator.

[0024] Furthermore, the refrigerator of the present invention allows the compressor compartment to communicate with the external space of the refrigerator through the air inlet and the air outlet at the bottom of the box, and uses a windshield strip to separate the space between the bottom of the box and the support surface of the refrigerator. By driving the convection fan, a heat dissipation air path is formed, so that the external air passes through the space on one side of the windshield strip, the condenser, the convection fan, the compressor, the space on the other side of the windshield strip, and finally flows back into the room. The external air cools the condenser with a relatively low temperature and the compressor with a relatively high temperature in turn, so that both are effectively cooled, thereby improving the refrigeration performance and reliability of the refrigerator.

[0025] Furthermore, when the flatness of the supporting surface of the refrigerator is poor, the windshield may be in too tight contact with the supporting surface, causing the windshield to exert a large force on the refrigerator, making the refrigerator unstable. Alternatively, the windshield may be too loosely in contact with the supporting surface or even have no contact, affecting the sealing effect. In the embodiment of the present invention, the user can adjust the tightness between the windshield and the supporting surface by rotating the windshield to adjust the distance between its bottom end and the bottom surface of the box to achieve the best sealing effect. In addition, during transportation, the windshield can be rotated to a horizontal state to rest against the bottom surface of the box to prevent it from being worn.

[0026] 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

[0027] 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:

[0028] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 a front view of the lower half of the refrigerator shown;

[0030] Figure 3 yes Figure 1 The exploded intent of the refrigerator shown;

[0031] Figure 4 Yes Figure 3 A further exploded schematic diagram of the internal structure of the refrigerator shown;

[0032] Figure 5 yes Figure 1 A schematic front view of the inner tank structure of the refrigerator shown;

[0033] Figure 6 yes Figure 1 The exploded intent of the refrigerator shown;

[0034] Figure 7 yes Figure 6 Schematic diagram of the decomposition of

[0035] Figure 8 It is an exploded schematic diagram of the bottom plate, the support plate and the wind deflector;

[0036] Fig. 9 yes Figure 8 A magnified image of point A;

[0037] Fig.10 This is a schematic diagram of the back structure of the knob;

[0038] Fig.11 is a schematic end view of a windshield strip in a vertical position;

[0039] Fig.12 It is a schematic diagram of the end face of the wind deflector, which is in an inclined position.

[0040] Fig.13 It is a schematic diagram of the structure of the cover plate;

[0041] Fig.14 yes Fig.13 The enlarged view of K;

[0042] Fig.15 It is a partial structural cross-sectional view of the cover plate. DETAILED DESCRIPTION

[0043] The embodiment of the present invention provides a refrigerator. Figures 1 to 4 As shown, the refrigerator of the present invention may generally include a box body 10, a freezing liner 30, a cover 820, an air inlet duct 410 and a freezing drawer 32. Among them, the box body 10 is equipped with a liner for defining various compartments, including a freezing liner 30. The freezing liner 30 defines a freezing chamber 302 with an open front side. The cover 820 is arranged at the bottom of the freezing liner 30 to enclose a cooling chamber 303 for accommodating an evaporator 800 at the bottom of the freezing chamber 302. The evaporator 800, the condenser, the compressor, and the throttling device together constitute a vapor compression refrigeration cycle system to achieve the refrigeration of the refrigerator. The cooling chamber 303 is arranged below the freezing chamber 302, so that the depth of the freezing chamber 302 is not affected by it, and a longer freezing chamber 302 and a freezing drawer 32 can be designed. In order to facilitate the placement of the evaporator, the evaporator 800 can be flat as a whole and placed horizontally in the cooling chamber 303 (that is, the long and wide surfaces of the evaporator 800 are arranged parallel to the horizontal plane).

[0044] The air inlet duct 410 is configured to guide the cold air in the cooling chamber 303 into the freezing chamber 302. The specific structure will be described later. The freezing drawer 32 can be pushed and pulled forward and backward in the freezing chamber 302. After the freezing drawer 32 enters the freezing chamber 302, the lower part of its front end plate is blocked by the front side of the cover 820.

[0045] In order to realize the return air from the freezing chamber 302 to the cooling chamber 303, a return air hole can be opened on the cover 820. Because the upper side of the cover 820 is the bottom plate of the freezing drawer 32, the front side is the front end plate 321 (such as Figure 6). In addition, to ensure that the cooling chamber 303 has sufficient depth, the front end of the cover 820 is usually close to the front opening of the freezing liner 30 and very close to the bottom of the front plate 321 of the freezing drawer 32. Therefore, the present invention particularly provides an inclined portion 825 extending gradually upward from front to back at the top of the front side of the cover 820, and a plurality of return air holes 821 are provided on the inclined portion 825 to allow the freezing chamber 302 to return air to the cooling chamber 303. Specifically, as Fig.13 As shown, the housing 820 may include a rear plate portion 826 extending from the rear to the front, an inclined portion 825 extending obliquely downward from the front end of the rear plate portion 826, and a front end portion 824 extending downward from the front end of the inclined portion 825. The rear end of the rear plate portion 826 is connected to the rear wall of the freezing liner 30, and the lateral side walls are connected to the lateral side walls of the freezing liner 30. The lateral ends of the inclined portion 825 and the front end portion 824 are connected to the lateral side walls of the freezing liner 30. The bottom wall of the front end portion 824 is connected to the bottom wall of the freezing liner 30. Thus, the housing 820 and the freezing liner 30 together enclose a sealed cooling chamber 303. The inclined portion 825 is arranged obliquely so that it is not blocked by the bottom plate and the front end plate of the freezing drawer 32, and can smoothly return air.

[0046] Furthermore, if Figures 13 to 15 As shown, the plurality of return air holes 821 can be arranged in a plurality of rows on the inclined surface 825, and each row of return air holes 821 is arranged at intervals along the lateral direction of the refrigerator. A water baffle 822 extending outward from the surface of the inclined surface 825 is provided above each row of return air holes 821. The vertical surface (such as Fig.15 L1 is used to represent the vertical plane where the front edge M of one of the water baffles 822 is located) compared to the frontmost vertical plane of the row of return air holes 821 (such as Fig.15 L2 is used to indicate that the vertical plane where the front edge N of one row of return air holes 821 is located is closer to the front to receive the dripping water in the freezing chamber 302. And ensure that after the water droplets are on the water baffle 822, they continue to drip downward from the front end of the water baffle 822 and will not drip into the return air holes 821 below. In this way, it can be prevented that water enters the cooling chamber 303 through the return air holes 821 to form frost or ice on the evaporator 800. The water baffle 822 also has a function of shielding the return air holes 821 so that the user cannot see the return air holes 821 to avoid affecting the appearance of the refrigerator. Each return air hole 821 is preferably in the shape of a slit extending in the lateral direction of the refrigerator to avoid designing a wider water baffle 822.

[0047] In some embodiments, Figure 3 and Figure 4As shown, the refrigerator also includes a refrigerating liner 20. The refrigerating liner 20 is arranged in the box body 10 and is located above the freezing liner 30, which defines a variable temperature chamber 202 and a refrigerating chamber 201 located directly above the variable temperature chamber. The refrigerating chamber 201 is located above the variable temperature chamber 202. Two split door bodies 21 that can pivot around a vertical axis are arranged on the front sides of the refrigerating chamber 201 and the variable temperature chamber 202, so as to pivotally open or close the refrigerating chamber 201 and the variable temperature chamber 202. Although not shown in the figure, it can be understood by those skilled in the art that the refrigerating chamber 201 and the variable temperature chamber 202 can be separated by a partition, and a storage drawer can be arranged in the variable temperature chamber 202. A freezing drawer 31 is arranged in the freezing chamber 302, and a freezing drawer 32 is arranged below the freezing drawer 31.

[0048] The temperature ranges in various types of storage rooms are different. For example, the temperature in the refrigerator 201 is generally controlled between 2°C and 10°C, preferably 4°C to 7°C. The temperature range in the freezer 302 is generally controlled between -22°C and -14°C. The variable temperature room 202 can be adjusted between -18°C and 8°C to achieve a variable temperature effect. The optimal storage temperature for different types of items is not the same, and the storage space suitable for storage is also different. For example, fruit and vegetable foods are suitable for storage in the refrigerator, while meat foods are suitable for storage in the freezer.

[0049] like Figures 3 to 5 As shown, the box body 10 is provided with the aforementioned air inlet duct 410 and two air return ducts 430. The air inlet duct 410 is provided on the inner side of the rear wall of the freezing liner 30 and the refrigerating liner 20, so that it is close to the rear wall of the liner or constitutes a part of the rear wall of the liner. The bottom end of the air inlet duct 410 is connected to the cooling chamber 303, and has an outlet 411 connected to the freezing chamber 302, and an outlet 415 connected to the temperature-changing chamber 202 and the refrigerating chamber 201, for conveying the cold air of the cooling chamber 303 to the freezing chamber 302, the temperature-changing chamber 202 and the refrigerating chamber 201. Figure 4 and Figure 5The air inlet duct 410 includes two parts, namely, a lower part located in the freezing liner 30 and an upper part located in the refrigerating liner 20. The bottom end of the upper part of the air inlet duct 410 has an air outlet 421, and the lower part of the air inlet duct 410 has an air outlet 413, and the air outlet 421 is connected to the air outlet 413 through an air duct. Multiple outlets 415 are used to distribute cold air to different height areas of the refrigerating chamber 201, and the cold air in the refrigerating chamber 201 can flow downward into the variable temperature chamber 202. Two return air ducts 430 are respectively arranged inside the lateral sides of the box body 10. The inlet of each return air duct 430 is connected to the refrigerating chamber 201 and the variable temperature chamber 202, and the outlet is connected to the cooling chamber 303, which is used to make the air in the refrigerating chamber 201 and the variable temperature chamber 202 flow back to the cooling chamber 303, and continue to be cooled by the evaporator 800 to form a cycle. A return air hole 821 is provided at the front of the cover 820 for allowing the air in the freezing chamber 302 to flow back to the cooling chamber 303 and continue to be cooled by the evaporator 800, thus forming a cycle.

[0050] like Figure 3 As shown, an air inlet fan 419 is provided at the connection between the air inlet duct 410 and the cooling chamber 303. The air inlet fan 419 is used to draw the cold in the cooling chamber 303 into the air inlet duct 410. The air inlet fan 419 can be an axial flow fan.

[0051] The refrigerator in the embodiment of the present invention is preferably a built-in refrigerator, which is used to be embedded in a cabinet or other storage space to save indoor space.

[0052] like Figure 1 and Figure 2 As shown, in the refrigerator of the embodiment of the present invention, the bottom rear side of the box body 10 has a compressor compartment 308. The condenser 920 and the compressor 910 are arranged side by side in the compressor compartment 308 (the horizontal direction referred to herein refers to the left and right direction marked in the figure). The bottom of the box body 10 has an air inlet 3041 and an air outlet 3051 arranged side by side in the horizontal direction. The compressor compartment 308 is connected to the external space below the box body 10 through the air inlet 3041 and the air outlet 3051.

[0053] A convection fan 930 is also provided in the compressor chamber 308. The convection fan 930 is located between the condenser 920 and the compressor 910 to separate the compressor chamber 308 into a condenser chamber 304 and a compressor chamber 305 which are arranged side by side in a transverse direction. The air inlet 3041 corresponds to the condenser chamber 304, and the air outlet 3051 corresponds to the compressor chamber 305. The condenser chamber 304 and the compressor chamber 305 are used to accommodate the condenser 920 and the compressor 910, respectively. When the convection fan 930 is turned on, air can be forced to blow from the condenser 920 to the compressor 910.

[0054] like Figure 1 and Figure 2As shown, a windshield strip 500 extending forward and backward is installed below the box body 10. The windshield strip 500 is located between the air inlet 3041 and the air outlet 3051. Figure 2 When the refrigerator is in a state of being ...

[0055] The convection fan 930 may be an axial flow fan with an axis extending transversely, Figure 7 . Taking the compressor chamber 305 located on the right side of the condenser chamber 304 as an example, when the refrigerator is running, the convection fan 930 is turned on to blow the air in the condenser chamber 304 to the compressor chamber 305, so that the external air enters the condenser chamber 304 through the air inlet 3041 through the space S1 on the left side of the windshield strip 500, first cools the condenser 920, then enters the compressor chamber 305 under the action of the convection fan 930, cools the compressor 910, and then enters the space S2 on the right side of the windshield strip 500 through the air outlet 3051, and flows out from the space S2. The above process is continuously carried out so that the condenser 920 and the compressor 910 are cooled in time. In the vapor compression refrigeration cycle, the surface temperature of the condenser 920 is generally lower than the surface temperature of the compressor 910, so in the above process, the external air first cools the condenser 920 and then cools the compressor 910.

[0056] An optional structure of the press chamber 308 is described below. Figure 6 and Figure 7As shown, the box body 10 includes a bottom plate 700, a support plate 100, a partition 740, two side plates 760 and a back plate 750. Among them, the bottom plate 700 includes a front bottom plate 710 located at the front side of the bottom of the refrigerator, an inclined plate 720 extending obliquely from the rear end of the front bottom plate 710 to the rear and upward, and a rear top plate 730 extending backward from the upper end of the inclined plate 720. The inclined plate 720 constitutes the front wall of the press chamber 308, and the rear top plate 730 constitutes the top wall of the press chamber 308. The support plate 100 is located below the rear top plate 730. The compressor 910 and the condenser 920 are installed on the support plate 100. The front end of the support plate 100 is spaced from the rear end of the front bottom plate 710 to form the aforementioned air inlet 3041 and air outlet 3051. The two side plates 760 are used to form the lateral side walls of the press chamber 308, and the back plate 750 is used to form the rear wall of the press chamber 308. Each side plate 760 may also be provided with a vent hole 761, and the back plate 750 may also be provided with a plurality of vent holes 751. When the refrigerator is normally placed indoors without being embedded in a cabinet, ventilation and heat dissipation can be achieved through the vent holes 761 and the vent holes 751. The partition 740 is arranged at the rear of the middle of the inclined plate 720, and the rear of the partition 740 is connected to the convection fan 930, and the bottom is connected to the wind shield strip 500, so as to separate the compressor chamber 308 together with the convection fan 930, so that air circulation between the condenser chamber 304 and the compressor chamber 305 can only be achieved through the convection fan 930.

[0057] The windshield strip 500 can be pushed and pulled forward and backward in a chute extending forward and backward on the bottom surface of the housing 10. During installation, the windshield strip 500 is inserted into the chute from front to back, and when the windshield strip 500 needs to be replaced, it can be pulled out from the front end.

[0058] A preferred structure of the windshield strip 500 is described below. Figures 8 to 12 As shown, the windshield strip 500 includes a pivot shaft 510 extending in the front-to-back direction and a windshield strip body 520 fixed to the pivot shaft 510 and extending front-to-back. The windshield strip body 520 may be in the shape of a thin sheet, and the pivot shaft 510 may be located in the middle of the windshield strip body 520 in the width direction. The refrigerator also includes two mounting plates 540 (only the front mounting plate is shown in the figure) fixed to the bottom surface of the box body 10 (specifically, the front bottom plate 710) and arranged front and back, and each mounting plate 540 is provided with a mounting hole 5421. The front and rear ends of the pivot shaft 510 are rotatably inserted into a mounting hole 5421 respectively, so as to rotate the windshield strip 500.

[0059] Specific as Fig. 9 As shown, the mounting plate 540 includes a horizontal plate 541 and a vertical plate 542 extending downward from the end of the horizontal plate 541. The horizontal plate 541 is fastened to the front bottom plate 710 by screws 582, and the vertical plate 542 is provided with the aforementioned mounting holes 5421.

[0060] like Fig. 9 and Fig.10 As shown, the refrigerator further includes a knob 530. The knob 530 is fixedly mounted at the front end of the pivot shaft 510 and is located at the front side of the corresponding mounting plate 540, so that the user can turn the knob 530 to rotate the wind shield 500, which is convenient for the user to operate. Specifically, the peripheral wall of the pivot shaft 510 has a plurality of grooves 511 (for example, two) extending in the front-to-back direction and penetrating the front and rear end surfaces thereof, and a plurality of positioning strips 532 are extended backward from the rear portion of the knob 530, and each positioning strip 532 is inserted backward into a corresponding groove 511, so that the knob 530 is fixed to the pivot shaft 510 and is easy to disassemble.

[0061] The knob 530 has a radially outwardly extending latch 531, and a plurality of protrusions 5422 protrude outward from the front surface of the mounting plate 540 located at the front end of the pivot shaft 510. The plurality of protrusions 5422 are arranged at intervals along the circumference of the mounting hole 5421. After the knob 530 is rotated by a preset angle, the latch 531 is inserted between two adjacent protrusions 5422, so that the two adjacent protrusions 5422 constrain the rotational freedom of the knob 530, so that the windshield strip 500 remains in position. For example Fig.11 As shown, there are four protrusions 5422, two of which are arranged above the knob 530, and the other two are arranged on the left side of the knob 530. The user can Fig.11 As shown, the latching teeth 531 are inserted between the two raised portions 5422 on the upper side, so that the windshield strip body 520 is in a vertically extended position. Fig.12 As shown, the latching teeth 531 are latched between the two middle protrusions 5422, so that the windshield strip body 520 is in an inclined extended position.

[0062] The pivot shaft 510 is preferably made of a metal material so that the windshield strip 500 has sufficient rigidity. The windshield strip body 520 is made of silicone so that it bends and deforms when compressed upward, generating a downward elastic force, thereby being closely attached to the support surface. Compared with plastic materials, elastic materials can bend and deform under force, and return to their original shape after the external force disappears, so that the windshield strip 500 generates a downward elastic force when compressed upward, thereby being closely attached to the support surface, improving the sealing performance between the windshield strip 500 and the support surface and the bottom surface of the box body 10, and avoiding air leakage at the windshield strip 500.

[0063] 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, characterized in that include: Box; A freezing liner is disposed in the box body and defines a freezing chamber with an open front side; A cover shell, which covers the bottom of the freezing liner to enclose a cooling chamber at the bottom of the freezing chamber for accommodating an evaporator. The evaporator is flat as a whole and is arranged in the cooling chamber; an air inlet duct configured to guide the cold air in the cooling chamber into the freezing chamber, wherein the bottom end of the air inlet duct is connected to the rear of the cooling chamber; and A freezer drawer is arranged in the freezer compartment so as to be pushable and pullable forward and backward, and after the freezer drawer enters the freezer compartment, the lower part of the front end plate of the freezer drawer blocks the front side of the housing; and The top of the front side of the housing has an inclined surface extending gradually upward from the front to the back, and a plurality of return air holes are opened on the inclined surface to allow the freezing chamber to return air to the cooling chamber; The plurality of return air holes are arranged in a plurality of rows on the inclined surface portion, and the return air holes in each row are spaced apart along a transverse direction of the refrigerator.

2. The refrigerator according to claim 1, characterized in that: A water baffle extending outward from the surface of the inclined portion is provided above each row of return air holes, and the vertical plane where the front edge of the water baffle is located is closer to the front of the vertical plane where the front end of the row of return air holes is located, so as to receive dripping water in the freezer compartment and prevent water from entering the return air holes.

3. The refrigerator according to claim 2, characterized in that: The housing comprises: A rear plate portion extending from rear to front; The inclined portion extends obliquely downward from the front end of the rear plate portion; and The front end portion extends downward from the front end of the inclined portion.

4. The refrigerator according to claim 1, characterized in that Also includes: A refrigeration liner is disposed in the box body and above the freezing liner, and defines a temperature-changing chamber and a refrigeration chamber located directly above the temperature-changing chamber; Two return air ducts are respectively arranged on the lateral sides of the box body, the inlet of each return air duct is connected to the refrigerating chamber and the temperature-changing chamber, and the outlet is connected to the cooling chamber; and The air inlet duct is arranged on the inner side of the rear wall of the freezing inner container and the refrigerating inner container, and has outlets respectively connected to the freezing chamber, the temperature-changing chamber and the refrigerating chamber.

5. The refrigerator according to claim 1, characterized in that: An air inlet fan is provided at the connection between the air inlet duct and the cooling chamber, and the air inlet fan is used to draw the cold in the cooling chamber into the air inlet duct.

6. The refrigerator according to claim 4, characterized in that Also includes: Two door bodies opened left and right are pivotally mounted on the front sides of the refrigerating chamber and the temperature-changing chamber to open and close the refrigerating chamber and the temperature-changing chamber.

7. The refrigerator according to claim 1, characterized in that: Each of the return air holes is in the shape of a slit extending in the transverse direction of the refrigerator.

8. The refrigerator according to claim 1, characterized in that: The rear side of the bottom of the box body is provided with a press chamber, and the press chamber is connected to the external space below the box body through an air inlet and an air outlet located side by side laterally at the bottom of the box body; The condenser and the compressor are arranged side by side in the compressor compartment; A convection fan is arranged in the compressor compartment and between the condenser and the compressor, and is used to force air to blow from the condenser to the compressor; and A windshield extending forward and backward is installed on the bottom surface of the box body and is located between the air inlet and the air outlet, so as to laterally separate the space between the bottom surface of the box body and the support surface when the refrigerator is placed on a support surface, so as to allow external air to enter the compressor compartment from one side of the windshield through the air inlet, first cool the condenser, then blow to the compressor through the convection fan, and finally flow out from the air outlet to the other side of the windshield; and The windshield strip is configured to rotate around an axis extending forward and backward, so as to adjust the distance between the bottom end of the windshield strip and the bottom surface of the box body according to the unevenness of the supporting surface, so that the bottom end of the windshield strip can be close to the supporting surface.

9. The refrigerator according to claim 8, characterized in that: The windshield strip comprises a pivot shaft extending in the front-to-back direction and a windshield strip body fixed to the pivot shaft and extending front-to-back; The refrigerator further comprises two mounting plates fixed to the bottom surface of the box body and arranged front to back, each mounting plate is provided with a mounting hole, and the front and rear ends of the pivot shaft are respectively rotatably inserted into one of the mounting holes; A knob, which is fixedly mounted on the front end of the pivot shaft and located at the front side of the corresponding mounting plate, so that a user can rotate the windshield strip by twisting the knob, and the knob has a radially outwardly extending latching tooth; and The front surface of the mounting plate at the front end of the pivot shaft protrudes outward with a plurality of protrusions, and the plurality of protrusions are arranged at intervals along the circumference of the mounting hole so that after the knob is rotated by a preset angle, the latch tooth is inserted between two adjacent protrusions, so that the two protrusions constrain the rotational freedom of the knob.

10. The refrigerator according to claim 8, characterized in that: The box body comprises: A bottom plate, comprising a front bottom plate located at the front side of the bottom of the refrigerator, an inclined plate extending obliquely backward and upward from the rear end of the front bottom plate, and a rear top plate extending backward from the upper end of the inclined plate, wherein the inclined plate constitutes the front wall of the press chamber, and the rear top plate constitutes the top wall of the press chamber; A support plate, located below the rear top plate, the compressor and the condenser are mounted on the support plate, and the front end of the support plate is spaced apart from the rear end of the front bottom plate to form the air inlet and the air outlet; Two side panels and one back panel, used to form two lateral side walls and a rear wall of the press chamber; and A partition is arranged behind the middle part of the inclined plate, the rear part of which is connected to the convection fan, and the bottom part is connected to the wind shield strip, so as to separate the compressor compartment together with the convection fan.

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