CN110375490A - Refrigerator - Google Patents

Abstract

The invention provides a refrigerator, which comprises a box body; a freezer liner arranged in the box body, which defines a freezer chamber with an open front side; The cooling chamber used to accommodate the evaporator; the air inlet duct is configured to lead the cold air in the cooling chamber to the freezing chamber; the freezing drawer can be pushed and pulled back and forth in the freezing chamber, and after entering the freezing chamber, the lower part of the front panel The front side of the cover is shielded; and the top of the front side of the cover has a slant portion extending upwards gradually from front to back, and a plurality of return air holes are opened on the slant portion to allow the freezing chamber to return air to the cooling chamber.

Description

refrigerator

technical field

The invention relates to the field of household appliances, in particular to a refrigerator.

Background technique

Existing refrigerators are generally provided with a plurality of storage compartments, which can be configured as refrigerator compartments, freezer compartments, and temperature-changing compartments 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, and often needs to squat down to operate, which affects the user experience.

In addition, when the storage compartment at the bottom of the refrigerator is set to be opened in a drawer type, since the press compartment is often provided at the rear of the bottom of the refrigerator, the press compartment needs to occupy a part of the drawer compartment, which makes the drawer have an abnormal shape, resulting in the bottom of the refrigerator. The storage compartment 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 during use, and the user needs to spend too much time searching for the items when picking them up, which brings inconvenience to use.

Contents of the invention

An object of the present invention is to provide a refrigerator which enhances the height of the freezing chamber from the ground and the space utilization efficiency of the freezing chamber, and facilitates return air from the freezing chamber to the cooling chamber.

A further object of the present invention is to enable the refrigerator to be embedded in the cabinet so that the condenser and the compressor can be effectively cooled, and it is convenient to adjust the position of the windshield so as to adjust the distance between its bottom end and the bottom surface of the cabinet.

In particular, the present invention provides a refrigerator comprising:

box;

The freezer inner container is arranged in the box body and defines a freezer chamber with an open front side;

The cover is used to cover the bottom of the freezer liner so as to enclose a cooling chamber for accommodating the evaporator at the bottom of the freezer;

The air inlet duct is configured to lead the cold air in the cooling chamber to the freezing chamber;

The freezer drawer can be pushed and pulled back and forth in the freezer compartment, and after it enters the freezer compartment, the lower part of the front panel covers the front side of the casing; and

The top of the front side of the casing has a slanted portion extending gradually upwards from the front to the rear, and a plurality of return air holes are opened on the slanted portion to allow the freezing chamber to return air to the cooling chamber.

Optionally, a plurality of return air holes are arranged in multiple rows on the slope, and each row of return air holes is arranged at intervals along the lateral direction of the refrigerator; and each row of return air holes has a baffle extending outward from the surface of the slope The water plate, the vertical plane where the front edge of the water shield is located is more forward than the vertical plane where the front end of the air return hole is located, so as to accept the dripping water in the freezing chamber and prevent water from entering the air return hole.

Optionally, the case includes: a rear plate portion extending forward from the rear; a slope portion extending obliquely downward from a front end of the rear plate portion; and a front end portion extending downward from a front end of the slope portion.

Optionally, the refrigerator further includes: a refrigerated inner container arranged in the box and above the frozen inner container, which defines a temperature-changing room and a refrigerating room directly above the temperature-changing room; two return air ducts are respectively arranged in the box body On both sides of the horizontal direction, the inlet of each return air duct is connected to the refrigerating room and the variable room, and the outlet is connected to the cooling room; and the air inlet duct is arranged on the inner side of the rear wall of the freezing inner tank and the refrigerating inner tank, and its bottom end is connected to the cooling room , and have outlets that communicate with the freezing chamber, the changing chamber and the cold storage chamber respectively.

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

Optionally, the refrigerator further includes: two left and right door bodies, which are pivotally installed on the front side of the refrigerating room and the variable temperature room, so as to open and close the refrigerating room and the variable temperature room.

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

Optionally, there is a compressor compartment on the rear side of the bottom of the box, and the compressor compartment communicates with the external space below the box through the air inlet and outlet arranged side by side at the bottom of the box; the condenser and the compressor are arranged side by side on the compressor In the machine compartment; the convection fan is installed in the compressor compartment and between the condenser and the compressor, which is used to force the air to blow from the condenser to the compressor; and the windshield extending forward and backward is installed on the bottom of the box And it is located between the air inlet and the air outlet, so that when the refrigerator is placed on a support surface, the space between the bottom surface of the box and the support surface is laterally separated, so as to allow external air to enter the compressor from the side of the windshield through the air inlet The warehouse first cools the condenser, then blows to the compressor through the action of the convection fan, and finally flows out from the air outlet to the other side of the windshield strip; The degree of unevenness adjusts the distance between the bottom end of the windshield strip and the bottom surface of the box body, so that the bottom end can be close to the support surface.

Optionally, the windshield includes a pivot shaft extending in the front-to-rear direction and a windshield body fixed to the pivot shaft and extending forward and backward; the refrigerator also includes two mounting plates fixed on the bottom surface of the cabinet and arranged front and back, each mounting plate A mounting hole is provided on the top, and the front and rear ends of the pivot shaft are respectively rotatably inserted into a mounting hole; the knob is fixedly mounted on the front end of the pivot shaft and is located on the front side of the corresponding mounting plate, so that the user can twist the knob to rotate the windshield strip, and the knob There are locking teeth extending radially outward; and the front surface of the mounting plate located at the front end of the pivot shaft protrudes outwards with a plurality of protrusions, and the plurality of protrusions are arranged at intervals along the circumference of the mounting hole, so that when the knob is rotated After the angle is set, the locking teeth are snapped between two adjacent protrusions, so that the two protrusions constrain the degree of freedom of rotation of the knob.

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 from the rear end of the front bottom plate to the rear and upward, and a rear top plate extending backward from the upper end of the inclined plate, and the inclined plate constitutes a press The front wall of the warehouse and the rear roof form the top wall of the press chamber; the supporting plate is located under the rear roof, the compressor and the condenser are installed on the supporting plate, and the front end of the supporting plate is spaced from the rear end of the front bottom plate to form an air inlet and outlet. The tuyere; two side plates and a back plate are used to form the lateral side walls and the 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 windshield strip. To separate the compressor chamber together with the convection fan.

In the refrigerator of the present invention, the cooling chamber is arranged directly below the freezing chamber. Compared with the prior art in which the cooling chamber is arranged behind the freezing chamber, the present invention makes the depth of the freezing chamber larger and can accommodate longer drawers, which is beneficial to Store bulky items. Because the bottom wall of the freezing drawer is located at the top of the casing, and the lower part of the front plate of the freezing drawer covers the front side of the casing, therefore, the return air hole is arranged on the inclined surface extending from front to back and gradually upwards on the top of the casing, which can Avoid freezer drawers blocking return air.

Further, in the refrigerator of the present invention, a water baffle is provided on the return air hole of the inclined portion, and the vertical surface where the front edge of the water baffle is located is more forward than the vertical surface where the front end of the return air hole is located, and can receive Dripping water in the freezing chamber, avoid water entering the cooling chamber through the return air hole, forming frost or ice on the evaporator.

Furthermore, the refrigerator of the present invention communicates the press chamber with the outer space of the refrigerator through the air inlet and outlet at the bottom of the box, and uses the windshield to separate the space between the bottom of the box and the supporting surface of the refrigerator. Driven by 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, the condenser, the convection fan, the compressor, the space on the other side of the windshield, and finally flows back into the room. The external air cools the relatively low-temperature condenser and the relatively high-temperature compressor sequentially, so that both are effectively cooled, and the refrigeration performance and reliability of the refrigerator are improved.

Moreover, when the flatness of the supporting surface of the refrigerator is poor, the wind-shielding strip may be in too tight contact with the supporting surface, causing the wind-shielding strip to exert a large force on the refrigerator, resulting in an unstable position of the refrigerator. Alternatively, the contact between the windshield strip and the support surface may be too loose or even non-contact, which will affect the sealing effect. In the embodiment of the present invention, the user can adjust the tightness between the windshield strip and the supporting surface by adjusting the distance between its bottom end and the bottom surface of the box to achieve an optimal sealing effect. In addition, during transportation, the windshield strip can be turned to a horizontal state so as to be attached to the bottom surface of the box to prevent it from being worn.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a front view of the lower half of the refrigerator shown in Fig. 1;

Fig. 3 is an exploded view of the refrigerator shown in Fig. 1;

Fig. 4 is a further exploded schematic diagram of the internal structure of the refrigerator shown in Fig. 3;

Fig. 5 is a schematic front view of the inner container structure of the refrigerator shown in Fig. 1;

Fig. 6 is an exploded view of the refrigerator shown in Fig. 1;

Figure 7 is an exploded schematic view of Figure 6;

Fig. 8 is an exploded schematic diagram of the bottom plate, the supporting plate and the windshield strip;

Fig. 9 is an enlarged view of place A of Fig. 8;

Figure 10 is a schematic diagram of the back structure of the knob;

Fig. 11 is a schematic diagram of the end face of the windshield strip, which is in a vertical position;

Fig. 12 is a schematic view of the end face of the windshield strip in an inclined position.

Figure 13 is a schematic structural view of the cover plate;

Fig. 14 is an enlarged view at K of Fig. 13;

Fig. 15 is a partial structural sectional view of the cover plate.

Detailed ways

An embodiment of the present invention provides a refrigerator. As shown in FIGS. 1 to 4 , the refrigerator of the present invention may generally include a box body 10 , a freezer inner container 30 , a cover 820 , an air inlet duct 410 and a freezer drawer 32 . Wherein, the interior of the box body 10 is installed with inner containers for defining various compartments, including a refrigerated inner container 30 . The freezer container 30 defines a freezer compartment 302 with an open front side. The casing 820 is disposed at the bottom of the freezer inner container 30 to enclose a cooling chamber 303 for accommodating the evaporator 800 at the bottom of the freezer chamber 302 . The evaporator 800 together with the condenser, the compressor and the throttling device constitute a vapor compression refrigeration cycle system to realize 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 the longer freezing chamber 302 and the freezing drawer 32 can be designed. 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).

The air inlet duct 410 is configured to guide the cool air in the cooling chamber 303 into the freezing chamber 302, and the specific structure will be introduced later. The freezer drawer 32 is arranged in the freezer compartment 302 so as to be pushable back and forth. Moreover, after the freezing pump 32 enters the freezing chamber 302 , the lower part of its front end plate is covered by the front side of the cover 820 .

In order to realize the air return from the freezing chamber 302 to the cooling chamber 303 , air return holes may be provided on the casing 820 . Because the top of the cover 820 is the bottom plate of the freezer drawer 32, the front side is the front end plate 321 of the freezer drawer 32 (as shown in FIG. 6 ). And, in order to ensure that the cooling chamber 303 has enough depth, the front end of the casing 820 is usually close to the front opening of the freezer inner container 30 , and is very close to the bottom of the front end plate 321 of the freezer drawer 32 . Therefore, the present invention particularly sets a slant portion 825 on the top of the front side of the casing 820 from front to back and gradually extends upwards, and a plurality of return air holes 821 are opened on the slant portion 825 to allow the freezing chamber 302 to return to the cooling chamber 303. wind. Specifically, as shown in FIG. 13 , the cover 820 may include a rear plate portion 826 extending from the rear to the front, a slope portion 825 extending obliquely downward from the front end of the rear plate portion 826 , and a slope portion 825 extending downward from the front end of the slope portion 825 . Extended front end portion 824 . The rear end of the rear plate portion 826 is in contact with the rear wall of the refrigerated container 30 , and the lateral side walls are in contact with the lateral side walls of the refrigerated container 30 . Both lateral ends of the inclined portion 825 and the front end portion 824 are in contact with lateral side walls of the refrigerated inner container 30 . The bottom wall of the front end portion 824 is in contact with the bottom wall of the refrigerated inner container 30 . Thus, the casing 820 and the refrigerated inner container 30 jointly 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 freezer drawer 32 and can return air smoothly.

Further, as shown in FIG. 13 to FIG. 15 , a plurality of return air holes 821 can be arranged in multiple rows on the inclined portion 825 , and each row of return air holes 821 is arranged at intervals along the transverse direction of the refrigerator. Above each row of return air holes 821 is a water baffle 822 extending outward from the surface of the inclined portion 825 . The vertical plane where the front edge of the water baffle 822 is located (as shown in FIG. 15 using L1 to indicate the vertical plane where the front edge M point of one of the water baffle 822 is located) is compared with the frontmost vertical surface of the row return air hole 821 ( As shown in FIG. 15 , L2 indicates that the front edge of one row of air return holes 821 (where point N is on the vertical plane) is closer to the front to receive the dripping water in the freezer compartment 302 . And ensure that after the water drops on the water retaining plate 822, it will continue to drip downward from the front end of the water retaining plate 822, and will not drip into the return air hole 821 below. In this way, water can be prevented from entering the cooling chamber 303 through the return air hole 821 to form frost or ice on the evaporator 800 . The water baffle 822 also has the ability to block the return air hole 821, so that the user will not see the return air hole 821, so as to avoid it from affecting the appearance of the refrigerator. Each return air hole 821 is preferably in the shape of a slit extending along the transverse direction of the refrigerator, so as to avoid designing a wider water baffle 822 .

In some embodiments, as shown in FIG. 3 and FIG. 4 , the refrigerator further includes a refrigerated liner 20 . The refrigerating inner container 20 is arranged in the box body 10 and above the freezing inner container 30 , and defines a temperature-changing room 202 and a refrigerating room 201 directly above the temperature-changing room. The refrigerating room 201 is located above the temperature changing room 202 . Two side-by-side door bodies 21 that can pivot around the vertical axis are arranged on the front side of the refrigerating room 201 and the variable room 202, so as to pivotally open or close the refrigerating room 201 and the variable room 202. Although not shown in the figure, those skilled in the art can understand that the refrigerating room 201 and the variable temperature room 202 can be separated by a partition, and storage drawers can be arranged in the variable temperature room 202 . A freezer drawer 31 is arranged in the freezer compartment 302 , and a freezer drawer 32 is arranged below the freezer drawer 31 .

The temperature ranges in various types of storage rooms are not the same. For example, the temperature in the refrigerator compartment 201 is generally controlled between 2°C and 10°C, preferably between 4°C and 7°C. The temperature range in the freezing chamber 302 is generally controlled at -22°C to -14°C. The temperature-changing room 202 can be adjusted between -18°C and 8°C to achieve a temperature-changing effect. The optimal storage temperature for different types of items is not the same, and the suitable storage space 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.

As shown in FIGS. 3 to 5 , the aforementioned air inlet duct 410 and two return air ducts 430 are disposed inside the box body 10 . The air inlet duct 410 is arranged on the inner side of the rear wall of the refrigerated liner 30 and the refrigerated liner 20 , so that it is attached 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 communicates with the cooling chamber 303, and has an outlet 411 communicating with the freezing chamber 302, and an outlet 415 communicating with the variable temperature chamber 202 and the refrigerating chamber 201, for delivering cold air from the cooling chamber 303 to the freezing chamber 302, Variable room 202 and cold room 201. As shown in FIG. 4 and FIG. 5 , the air inlet duct 410 includes two parts, which are respectively a lower part located in the refrigerated inner container 30 and an upper part located in the refrigerated inner container 20 . The bottom of the upper part of the air inlet duct 410 has a tuyere 421 , and the lower part of the air inlet duct 410 has a tuyere 413 , and the tuyere 421 communicates with the tuyere 413 through an air duct. A plurality of outlets 415 are used to distribute cold air to different height areas of the refrigerating room 201 , and the cold air in the refrigerating room 201 can flow downward into the temperature-changing room 202 . The two return air ducts 430 are respectively disposed inside the lateral sides of the box body 10 . The inlet of each return air duct 430 communicates with the refrigerating chamber 201 and the temperature-changing chamber 202, and the outlet communicates with the cooling chamber 303, for returning the air in the refrigerating chamber 201 and the temperature-changing chamber 202 to the cooling chamber 303, and continuing to receive the cooling of the evaporator 800, Form a loop. An air return port 821 is provided at the front of the cover plate 820 for allowing the air in the freezing chamber 302 to flow back to the cooling chamber 303 to continue being cooled by the evaporator 800 to form a circulation.

As shown in FIG. 3 , an air intake fan 419 is provided at the junction of the air intake duct 410 and the cooling chamber 303 . The air intake fan 419 is used to suck the cold in the cooling chamber 303 into the air intake duct 410 . The air inlet fan 419 can be an axial flow fan.

The refrigerator in the embodiment of the present invention is preferably a built-in refrigerator, which is used to be built into a cabinet or other containing spaces, so as to save indoor space.

As shown in FIG. 1 and FIG. 2 , in the refrigerator according to the embodiment of the present invention, a press chamber 308 is provided at the bottom rear side of the box body 10 . The condenser 920 and the compressor 910 are arranged side by side in the compressor compartment 308 horizontally (the horizontal direction referred to herein refers to the left-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. The press chamber 308 communicates with the external space below the box body 10 through the air inlet 3041 and the air outlet 3051 .

A convection fan 930 is also provided in the press chamber 308 . A convection fan 930 is located between the condenser 920 and the compressor 910 to divide the compressor compartment 308 into a condenser chamber 304 and a compressor chamber 305 side by side. 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 house the condenser 920 and the compressor 910, respectively. When the convection fan 930 is turned on, it can force air to blow from the condenser 920 to the compressor 910 .

As shown in FIGS. 1 and 2 , 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 . When the refrigerator is placed on a support surface (i.e. plane A shown in Figure 2, which can be the bottom wall of the cabinet), the refrigerator is supported by the support rollers 50 (or other support structures) at the bottom four corners of the box body 10, and the box body 10 There is an interval between the bottom surface and the support surface A to form a space. The windshield strip 500 laterally partitions the space between the bottom surface of the box body 10 and the support surface, dividing it into a space S1 on the left side and a space S2 on the right side.

The convection fan 930 may be an axial fan whose axis extends transversely, as shown in FIG. 7 . Take the compressor room 305 located on the right side of the condenser room 304 as an example. When the refrigerator is running, the convection fan 930 is turned on to blow the air in the condenser room 304 to the compressor room 305, so that the outside air passes through the left side of the windshield strip 500. The space S1 enters the condenser chamber 304 through the air inlet 3041, firstly 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 windshield through the air outlet 3051 In the space S2 on the right side of 500, it 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 that of the compressor 910 , so in the above process, the outside air is used to cool the condenser 920 first and then the compressor 910 .

An optional structure of the press chamber 308 is introduced below. As shown in FIGS. 6 and 7 , the box body 10 includes a bottom plate 700 , a supporting plate 100 , a partition 740 , two side plates 760 and a back plate 750 . Wherein, 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 forms the front wall of the press bay 308 and the rear roof plate 730 forms the top wall of the press bay 308 . The supporting board 100 is located under the rear top board 730 . The compressor 910 and the condenser 920 are installed on the pallet 100 . The front end of the support plate 100 is spaced apart 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 . Ventilation holes 761 may also be provided on each side panel 760 , and multiple ventilation holes 751 may also be provided on the back panel 750 . When the refrigerator is normally placed in the room and is not embedded in a cabinet, the ventilation holes 761 and the ventilation holes 751 can be used for ventilation and heat dissipation. The divider 740 is arranged behind the middle part of the inclined plate 720, its rear part is connected to the convection fan 930, and the bottom is connected to the windshield strip 500, so as to separate the compressor chamber 308 together with the convection fan 930, so that the condenser chamber 304 and the compressor chamber 305 The room can only realize air circulation through the effect of the convection fan 930.

The wind-shielding strip 500 can be pushed and pulled back and forth and set in a front-back extending chute provided on the bottom surface of the box body 10 . During installation, the windshield strip 500 can be 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.

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

Specifically as shown in FIG. 9 , the mounting plate 510 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 aforementioned installation hole 5421 is opened on the vertical plate 542 .

As shown in FIGS. 9 and 10 , the refrigerator further includes a knob 530 . The knob 530 is fixedly mounted on the front end of the pivot shaft 510 and located on the front side of the corresponding mounting plate 540 , so that the user can twist the knob 530 to rotate the windshield strip 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-rear direction and running through its front and rear end faces, and a plurality of positioning strips 532 extend backward from the rear of the knob 530, and each positioning strip 532 A corresponding groove 511 is inserted backward so that the knob 530 is fixed on the pivot shaft 510 and is easy to disassemble.

The knob 530 has a locking tooth 531 extending radially outward, 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 . A plurality of protrusions 5422 are arranged at intervals along the circumference of the installation hole 5421 . After the knob 530 rotates a preset angle, the locking tooth 531 is inserted between two adjacent protrusions 5422, so that the two adjacent protrusions 5422 constrain the rotational degree of freedom of the knob 530, so that the windshield strip 500 hold position. For example, as shown in FIG. 11 , 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 . As shown in FIG. 11 , the user can snap the locking teeth 531 between the two protrusions 5422 on the upper side, so that the windshield strip body 520 is in a vertically extending position. Alternatively, as shown in FIG. 12 , the locking teeth 531 can be snapped between the two protrusions 5422 in the middle, so that the windshield strip body 520 is in a position extending obliquely.

The pivot shaft 510 is preferably made of metal material so that the wind strip 500 has sufficient rigidity. The windshield strip body 520 is made of silica gel so as to be bent and deformed when being compressed upwards to generate downward elastic force so as to be tightly attached to the supporting surface. Compared with plastic materials, elastic materials can be bent and deformed by force, and return to their original shape after the external force disappears, so that when the windshield strip 500 is compressed upward, it will generate downward elastic force, so that it can be tightly attached to the supporting surface, and it can be lifted from the supporting surface. And the sealing performance between the bottom surface of the box body 10 and the air leakage at the windshield strip 500 are avoided.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of refrigerator, characterized by comprising:

Cabinet；

Refrigerated liner is arranged in the cabinet, defines the open freezing chamber in front side；

Housing, cover detain the refrigerated liner bottom, to surround one for accommodating the cooling chamber of evaporator in the freezing chamber bottom；

Wind inlet channel is configured to lead to the cooling indoor cold air in the freezing chamber；With

Freezer drawer can be set in the freezing chamber to front and back push-and-pull, and after it enters the freezing chamber, front end-plate It blocks on front side of the housing lower part；And

Top has the inclined plane part that gradually inclination extends upwards from front to back on front side of the housing, offers on the inclined plane part more A return air hole, to allow the freezing chamber to the cooling chamber return air.

2. refrigerator according to claim 1, which is characterized in that

The multiple return air hole is arranged as multiple rows of on the inclined plane part, and return air hole described in each row is along the transverse direction side of the refrigerator It is arranged to interval；And

The top of return air hole described in every row has from the outwardly extending water fender in inclined plane part surface, the water fender leading edge Place vertical plane compared to this flow back to front end of air holes where vertical plane be located further forward, the freezing is indoor to drip to accept, and keeps away Exempt from water to enter in the return air hole.

3. refrigerator according to claim 2, which is characterized in that the housing includes:

Back plate portion extended from back to front；

The inclined plane part is extended obliquely downward from the front end in the back plate portion；With

Front end is extended downwardly from the front end of the inclined plane part.

4. refrigerator according to claim 1, it is characterised in that further include:

Liner is refrigerated, be arranged in the cabinet and is located above the refrigerated liner, temperature-changing chamber is defined and is located at described Refrigerating chamber right above temperature-changing chamber；

Two return airways, are respectively arranged at the both lateral sides of the cabinet, described in the inlet communication of each return airway Refrigerating chamber and the temperature-changing chamber, cooling chamber described in outlet；And

The wind inlet channel is set on the inside of the rear wall of the refrigerated liner and the refrigeration liner, and bottom end is connected to the cooling Room, and there is the outlet for being respectively communicated with the freezing chamber, the temperature-changing chamber and the refrigerating chamber.

5. refrigerator according to claim 1, which is characterized in that

The junction of the wind inlet channel and the cooling chamber is provided with air intake blower fan, and the air intake blower fan is used for the cooling Indoor enfleurage enters the wind inlet channel.

6. refrigerator according to claim 4, it is characterised in that further include:

Two door body split around, are pivotably mounted on the front side of the refrigerating chamber and the temperature-changing chamber, described in opening and closing Refrigerating chamber and the temperature-changing chamber.

7. refrigerator according to claim 1, which is characterized in that

Each return air hole is the slit-shaped extended along the transverse direction of the refrigerator.

8. refrigerator according to claim 1, which is characterized in that

There is press storehouse, the press storehouse is by being located at the air inlet of the bottom of box laterally side by side on rear side of the bottom of box It is connected to air outlet with the exterior space below the cabinet；

Condenser and compressor are arranged in laterally side by side in the press storehouse；

Convection flow fan is arranged in the press storehouse and is between the condenser and the compressor, for promoting air It is blowed to from the condenser at the compressor；With

The weather strip that front and back extends, is installed on the tank floor and between the air inlet and the air outlet, with When refrigerator is placed in a supporting surface, space between the laterally separated tank floor and the supporting surface, to allow outside air Enter the press storehouse from the weather strip side by the air inlet, first cools down the condenser, then through the convective wind Machine effect blows to the compressor, and the other side of the weather strip is finally flowed out to from the air outlet；And

The weather strip is configured to can be around the axis rotation that a front and back extends, so as to according to the rough degree tune of supporting surface The weather strip bottom end is saved at a distance from the tank floor, makes its bottom end that can be adjacent to supporting surface.

9. refrigerator according to claim 8, which is characterized in that

The weather strip includes the pivotal axis extended along the longitudinal direction and the weather strip for being fixed on the pivotal axis and front and back extension Ontology；

The refrigerator further includes being fixed on the tank floor and two mounting plates in tandem, is provided on each mounting plate One mounting hole, the rear and front end of the pivotal axis are rotatably inserted respectively in the mounting hole；

Knob is fixedly installed in the front end of the pivotal axis and is located on front side of the corresponding mounting plate, so as to user's torsion Weather strip described in the knob, the knob have the latch to extend radially outwardly；And

Multiple lug bosses, the multiple lug boss edge are outwardly protruded positioned at the front surface of the mounting plate of the pivotal axis front end The circumferentially-spaced arrangement of the mounting hole, to be caught in the latch two neighboring after the knob predetermined angle Between lug boss, two lug bosses is made to constrain the rotary freedom of the knob.

10. refrigerator according to claim 8, which is characterized in that the cabinet includes:

Bottom plate comprising tilt extension rearwardly and upwardly positioned at the noseplate of the refrigerator lower front, from the noseplate rear end Hang plate and the rear top plate that extends back from the hang plate upper end, the hang plate constitute the antetheca in the press storehouse, Top plate constitutes the roof in the press storehouse after described；

Supporting plate is located at below the rear top plate, and the compressor and the condenser are mounted on the supporting plate, before the supporting plate End is arranged with noseplate rear end interval to form the air inlet and the air outlet；

Two side plates and a backboard, for constituting the both lateral sides wall and rear wall in the press storehouse；With

Separator, is arranged in the middle part of the hang plate rear, and the rear part connects the convection flow fan, keeps out the wind described in the connection of bottom Item, to separate the press storehouse jointly with the convection flow fan.