CN110553452A

CN110553452A - Refrigerator with a door

Info

Publication number: CN110553452A
Application number: CN201810565333.7A
Authority: CN
Inventors: 李伟; 刘建如; 姬立胜
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Qingdao Haier Co Ltd
Priority date: 2018-06-04
Filing date: 2018-06-04
Publication date: 2019-12-10

Abstract

the invention provides a refrigerator, which comprises a freezing chamber positioned at the bottom of the refrigerator; a cooling chamber located below the freezing chamber to convey cold air to the freezing chamber, and an evaporator of the refrigerator is placed in the cooling chamber in a horizontal posture; the compressor bin is positioned at the rear lower part of the cooling chamber and is used for accommodating a compressor of the refrigerator; the water receiving tray is positioned below the evaporator to receive liquid water dropping from the water receiving tray; the evaporating dish is arranged in the press bin; the drain pipe is downwards inclined and extends to the evaporating dish from the bottom of the water receiving tray and is used for leading the liquid water in the water receiving tray into the evaporating dish to absorb heat and evaporate; and at least one branch pipe extending downwards from the water discharge pipe to the outside of the refrigerator so as to discharge the solid matter entering the water discharge pipe through the branch pipe, wherein the bottom end of each branch pipe is provided with a blocking cap for blocking the passage of the branch pipe. The invention can avoid the blockage of the drain pipe.

Description

Refrigerator with a door

Technical Field

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

Background

The existing refrigerator is generally provided with a plurality of storage compartments, and the storage compartments can be configured into a refrigerating compartment, a freezing compartment and a temperature changing compartment according to different purposes, and the 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 causes inconvenience when a user uses the storage compartment at the bottom of the refrigerator, often needs to squat down for operation, and influences the use experience of the user.

In addition, when the storage chamber arranged at the bottom of the refrigerator is opened in a drawer mode, the rear side of the bottom of the refrigerator is provided with the press bin, and the press bin needs to occupy a part of the drawer chamber, so that the drawer is special-shaped, and the storage chamber at the bottom of the refrigerator cannot be completely utilized. And the drawer at the bottom of the refrigerator also needs to be arranged deeply, stored objects need to be stacked when the refrigerator is used, and users need to spend too much time looking over when taking the objects, which brings inconvenience for use.

disclosure of Invention

an object of the present invention is to provide a refrigerator to enhance a height of a freezing chamber from the ground and a space utilization efficiency of the freezing chamber.

A further object of the present invention is to facilitate the smooth drainage of liquid water from the evaporator of a refrigerator into the evaporating dish and to avoid the drain pipe from being blocked by solid matter.

in particular, the present invention provides a refrigerator, comprising:

A freezing chamber located at the bottom of the refrigerator;

A cooling chamber located below the freezing chamber to convey cold air to the freezing chamber, and an evaporator of the refrigerator is placed in the cooling chamber in a horizontal posture;

The compressor bin is positioned at the rear lower part of the cooling chamber and is used for accommodating a compressor of the refrigerator;

The water receiving tray is positioned below the evaporator to receive liquid water dropping from the water receiving tray;

The evaporating dish is arranged in the press bin;

The drain pipe is downwards inclined and extends to the evaporating dish from the bottom of the water receiving tray and is used for leading the liquid water in the water receiving tray into the evaporating dish to absorb heat and evaporate; and

And at least one branch pipe extending downwards from the water discharge pipe to the outside of the refrigerator so as to discharge the solid matter entering the water discharge pipe through the branch pipe, wherein the bottom end of each branch pipe is provided with a blocking cap for blocking the passage of the branch pipe.

optionally, the number of the at least one branch pipe is plural, and the plural branch pipes are arranged in sequence along the extending direction of the drain pipe.

optionally, the plurality of branch pipes are arranged to have different inner diameters; and the inner diameter of the branch pipe gradually becomes smaller along the water flow direction of the drain pipe.

Optionally, a branch pipe is connected to the end of the drain pipe that meets the drip tray.

Optionally, a drain penetrates a sidewall of the evaporation pan to inject liquid water into the evaporation pan.

optionally, the angle of the drain pipe to the horizontal is not less than 6 °.

Optionally, the drip tray is funnel-shaped and extends from the edge to the center of the drip tray and gradually inclines downwards.

Optionally, the refrigerator comprises a housing, a pressing bin is arranged at the rear side of the bottom of the housing; the freezing inner container is arranged at the bottom of the inner side of the shell and is limited with a freezing chamber, a cover shell is arranged in the freezing inner container, and the cover shell covers the bottom of the freezing inner container so as to form a cooling chamber at the bottom of the freezing chamber; and a foaming layer formed between the outer shell and the freezing inner container.

Optionally, a bottom wall portion region of the freezing inner container is recessed downwardly to form a drip tray.

optionally, the top of the front side of the cover casing is provided with a slope part which gradually inclines upwards from front to back, and the slope part is provided with a plurality of air return holes to allow the freezing chamber to return air to the cooling chamber.

Compared with the scheme that the cooling chamber is arranged behind the freezing chamber in the prior art, the refrigerator has the advantages that the depth of the freezing chamber is increased, a longer drawer can be accommodated, and the large-size articles can be stored.

Not only the defrosting water of the liquid evaporator, but also ice blocks, other foreign matters, even solid matters such as screws and the like generated by the frost layer on the surface of the evaporator fall on the water receiving tray, so that the solid matters enter the drain pipe and enter the branch pipe from the drain pipe without blocking the drain pipe. The user can open the blocking cap at the bottom of the overflow pipe to take out the solid.

Further, in the refrigerator of the present invention, a plurality of branch pipes are provided to ensure that the solid material can completely enter the branch pipes when the solid material is much.

However, the possibility of large amounts of solids entering the drain is low. Therefore, in the present invention, the inner diameters of the plurality of branch pipes gradually decrease in the flow direction of the drain pipe. That is, the upstream branch pipe is relatively thick and can accommodate most of the total solids disposed, including the relatively large volume of solids entering. The downstream branch pipe can be arranged to be thinner to reduce the volume, i.e. the liquid water contained in the downstream branch pipe, so that more liquid water can enter the evaporating dish for evaporation.

Furthermore, in the refrigerator, the drain pipe is communicated with the side wall of the evaporation pan, so that the drain pipe can still keep a large enough inclination angle under the condition that the evaporator is at a lower position, liquid water generated by defrosting is conveniently drained into the evaporation pan, and the liquid water absorbs heat and evaporates in the evaporation pan.

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

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

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

FIG. 2 is a schematic sectional view of a bottom structure of the refrigerator shown in FIG. 1;

FIG. 3 is a further exploded schematic view of the interior structure of the refrigerator shown in FIG. 1;

FIG. 4 is a schematic front view of the liner structure of the refrigerator shown in FIG. 1;

FIG. 5 is an exploded view of the refrigerator of FIG. 1;

FIG. 6 is a schematic view of the construction of the cover plate;

FIG. 7 is an enlarged view at K of FIG. 6;

FIG. 8 is a partial structural cross-sectional view of the shroud.

Detailed Description

The embodiment of the invention provides a refrigerator. As shown in fig. 1 and 2, the refrigerator of the present invention may generally include a plurality of compartments, such as a freezing compartment 302 for freezing food items. A cooling chamber 303 is provided directly below the freezing chamber 302, and a press cabin 308 is provided behind and below the cooling chamber 303. The refrigerator performs refrigeration using a vapor compression refrigeration cycle system, which includes an evaporator 800, a condenser, a compressor 910, and a throttle device. The evaporator 800 is placed in a lying posture in the cooling chamber 303 (the surface having the largest area is disposed along a horizontal plane). The cooling chamber 303 produces cold air by means of the evaporator 800 and uses a fan to deliver the cold air to the freezing chamber 302 and other chambers, thereby realizing refrigeration of each chamber. The cold air is subjected to heat exchange with the food in the compartment, the temperature of the cold air rises, the cold air is recycled to the cooling compartment 303 to be cooled again, and the circulation operation is carried out.

compared with the scheme that the cooling chamber is arranged behind the freezing chamber in the prior art, the refrigerator provided by the invention has the advantages that the depth of the freezing chamber 302 is increased, a longer freezing drawer can be accommodated, and the large-volume articles can be stored.

After the refrigerator evaporator 800 operates for a period of time, because the return air of the compartment contains certain water vapor, the water vapor can be condensed and frosted on the surface of the evaporator 800 when passing through the evaporator 800. When the frost formation amount of the evaporator 800 increases to a certain extent, defrosting is required, which may affect the cooling effect of the refrigerator and cause an increase in power consumption. When defrosting is done by electrical heating or other means, the frost layer melts to form liquid water. A drip pan 960 is disposed below the evaporator 800 to receive liquid water dripping from the drip pan 960.

The compressor 910 is disposed in the compressor compartment 308, and the compressor 910 generates heat to make the temperature in the compressor compartment 308 higher. Therefore, an evaporating dish 950 is provided in the press compartment 308. A drain pipe 980 extends from the bottom of the drip tray 960 downwardly into the evaporation pan 950 to introduce liquid water into the evaporation pan 950. The liquid water in the evaporating dish 950 absorbs heat to evaporate, and the water vapor is discharged from the compressor chamber 308 out of the refrigerator.

Compared with the prior art that the cooling chamber is arranged behind the freezing chamber, the cooling chamber 303 is arranged right below the freezing chamber 302, so that the height position of the cooling chamber is lower, and the evaporator 800 and the water pan 960 are lower. In order to completely drain the defrosting water to the evaporating dish 950, the drain pipe 980 is usually kept at a large angle with respect to the horizontal plane, for example, at an angle of not less than 6 °. That is, the height of the end of the drain pipe 980 connected to the evaporating dish 950 will be lower. To this end, in some embodiments, the present invention provides for the discharge end of the drain pipe 980 to be disposed through the side wall of the evaporation pan 950, and thus below the top edge of the evaporation pan 950. Under the premise that the water pan 960 moves downwards and the depth and position of the evaporating dish 950 are not changed, a larger inclination angle can still be obtained, and the water can be discharged smoothly.

The drip tray 960 is preferably formed in a funnel shape extending from an edge thereof to a center thereof with gradually downward inclination, so as to better discharge water. The bottom wall portion area of the freezing bladder 30 may be recessed downwardly to form a drip tray 960. Alternatively, a separately fabricated drip tray 960 may be placed under the evaporator 800.

As shown in fig. 2, in an embodiment of the present invention, at least one branch pipe 981, 982, 983 is disposed in the drain pipe 980. Branch pipes 981, 982, 983 extend from drain pipe 980 down to the exterior of the refrigerator (through the bottom wall of the refrigerator). In addition, a blocking cap 970 for blocking the channel is arranged at the bottom end of each branch pipe, so that water leakage at the bottom of each branch pipe is avoided.

After solid matters such as ice cubes, foreign matters or screws fall on the water receiving tray, the solid matters enter the drain pipe 980 and then enter the branch flow pipe from the drain pipe 980 without blocking the drain pipe 980. The user can open the blocking cap 970 at the bottom of the branch line to remove the solids and simultaneously release the water in the branch line. When no liquid water flows through the drain pipe 980, the liquid water stored in the branch pipe will slowly absorb heat and evaporate.

In some embodiments, the number of the at least one branch pipe is plural, and the plural branch pipes are arranged in series along the extending direction of the drain pipe. For example, three bypass tubes 981, 982, 983 are provided as shown in fig. 2. The arrangement of the branch pipes can ensure that the solid objects can completely enter the branch pipes when the solid objects are more.

Preferably, a branch pipe (branch pipe 981 shown in FIG. 2) is connected to the end of drain pipe 980 that interfaces with drip tray 960, or is positioned below the drain opening of drip tray 960. This facilitates greater or greater likelihood of solids within drip tray 960 falling directly into bypass tube 981, reducing clogging of drain 980.

preferably, the plurality of branch pipes are provided with different inner diameters. And the inner diameter of the branch pipe gradually becomes smaller along the water flow direction of the drain pipe. In the example shown in fig. 2, branch pipe 981 has the largest inner diameter, branch pipe 982 has a centered inner diameter, and branch pipe 983 has the smallest inner diameter. The reason for this is: the possibility of large amounts of solids entering the drain is low. Thus, upstream branch line 981 is made thicker and can accommodate most of the total solids disposed, including the larger volumes of solids entering. The downstream branch pipes 982, 983 may be made thinner to reduce the volume, i.e., the liquid water contained therein, so that more liquid water is allowed to enter the evaporation pan 950 for evaporation.

As shown in fig. 1 to 3, the refrigerator includes a case 10 and a freezing inner container 30. The bottom rear side of the housing 10 is formed with the aforementioned press chamber 308. The freezing inner container 30 is provided at the bottom inside the outer case 10, and defines a freezing chamber 302. A cover 820 is arranged in the freezing inner container 30, and the cover 820 covers and buckles the bottom of the freezing inner container 30 to enclose the cooling chamber 303 at the bottom of the freezing chamber 302. A freezer drawer 32 may be disposed within the freezer compartment 302. A foam layer 90 is formed between the casing 10 and the freezing inner container 30.

In order to return the freezing compartment 302 to the cooling compartment 303, a return hole may be provided in the cover 820. The bottom plate of the freezer drawer 32 is above the cover 820, and the front end plate 321 (fig. 5) of the freezer drawer 32 is at the front side. In order to secure a sufficient depth of the cooling chamber 303, the front end of the cover 820 is usually close to the front opening of the freezing chamber 30 and is located close to the bottom of the front end plate 321 of the freezing drawer 32. Therefore, the present invention particularly provides a slope portion 825 extending obliquely upward from front to back at the top of the front side of the housing 820, and a plurality of return holes 821 are opened on the slope portion 825 to allow the freezing compartment 302 to return air to the cooling compartment 303. Specifically, as shown in fig. 6, the cover 820 may be made to include a rear plate section 826 extending from the rear to the front, a slope section 825 extending obliquely downward from the front end of the rear plate section 826, and a front end section 824 extending downward from the front end of the slope section 825. The rear end of the rear plate section 826 is connected to the rear wall of the freezing inner container 30, and the lateral side walls are connected to the lateral side walls of the freezing inner container 30. The slant portions 825 and the distal end portion 824 are connected to both lateral side walls of the freezing inner container 30 at both lateral ends. The bottom wall of the front end section 824 is in contact with the bottom wall of the freezing inner container 30. The casing 820 and the freezing chamber 30 thus together enclose a sealed cooling chamber 303. The inclined plane portion 825 is inclined so as not to be shielded by the bottom plate and the front end plate of the freezing drawer 32, and air can be smoothly returned.

further, as shown in fig. 6 to 8, a plurality of return holes 821 may be arranged in a plurality of rows on the inclined surface portion 825, each row of the return holes 821 being provided at intervals in a lateral direction of the refrigerator. Above each row of return air holes 821 is a water deflector 822 extending outwardly from the surface of the ramp portion 825. The front edge of the water deflector 822 is located farther forward in the vertical plane (the vertical plane where the point M of the front edge of one of the water deflectors 822 is indicated by L1 in fig. 8) than the foremost vertical plane of the row of return air holes 821 (the vertical plane where the point N of the front edge of one of the row of return air holes 821 is indicated by L2 in fig. 8) to receive the water drops in the freezing chamber 302. And ensures that water drops continue to drop downward from the front end of the water guard 822 after the water drops are on the water guard 822 and do not drop into the return air hole 821 below. This prevents water from entering the cooling chamber 303 through the return hole 821 to form frost or ice on the evaporator 800. The water guard 822 also has a blocking return hole 821 so that the return hole 821 is not seen by the user to prevent it from affecting the beauty of the refrigerator. Each of the return holes 821 is preferably slit-shaped extending in a lateral direction of the refrigerator to avoid designing a wide water guard 822.

as shown in fig. 3 to 5, the refrigerator further includes an intake duct 410. The intake duct 410 is configured to introduce cool air in the cooling compartment 303 to the freezing compartment 302, and the specific structure will be described later. The freezer drawer 32 is slidably disposed in the freezer compartment 302 back and forth. And, after the freezing drawer 32 enters the freezing chamber 302, a lower portion of a front end plate thereof is shielded on a front side of the housing 820.

As shown in fig. 1 to 3, the refrigerator further includes a refrigerating inner container 20. The refrigerating inner container 20 is disposed in the case 10 above the freezing inner container 30, and defines a variable temperature chamber 202 and a refrigerating chamber 201 directly above the variable temperature chamber. The refrigerating chamber 201 is located above the temperature changing chamber 202. Two split door bodies 21 pivotable about vertical axes are provided at front sides of the refrigerating chamber 201 and the temperature changing chamber 202 so as to pivotally open or close the refrigerating chamber 201 and the temperature changing chamber 202. Although not shown in the drawings, it will be understood by those skilled in the art that the refrigerating chamber 201 and the temperature-varying chamber 202 may be separated by a partition, and a storage drawer may be provided in the temperature-varying 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.

The temperature ranges in the various types of storage chambers are different. For example, the temperature in the refrigerating compartment 201 is generally controlled between 2 ℃ and 10 ℃, preferably between 4 ℃ and 7 ℃. The temperature range in the freezer compartment 302 is typically controlled between-22 c and-14 c. The temperature-changing chamber 202 can be adjusted between-18 ℃ and 8 ℃ to realize the temperature-changing effect. The optimal storage temperature of different kinds of articles is different, and the storage space suitable for storage is also different. For example, fruit and vegetable foods are suitably stored in the refrigerating compartment, while meat foods are suitably stored in the freezing compartment.

As shown in fig. 1 to 4, the housing 10 is provided therein with the aforementioned intake air duct 410 and two return air ducts 430. The air intake duct 410 is disposed inside the rear walls of the freezing and refrigerating liners 30 and 20 so as to be attached to or form a part of the rear wall of the liner. The bottom end of the air inlet duct 410 is communicated with the cooling chamber 303 and is provided with an outlet 411 communicated with the freezing chamber 302 and an outlet 415 communicated with the temperature-changing chamber 202 and the refrigerating chamber 201, and the air inlet duct is used for conveying cold air of the cooling chamber 303 to the freezing chamber 302, the temperature-changing chamber 202 and the refrigerating chamber 201. Referring to fig. 3 and 4, the air inlet duct 410 includes two portions, i.e., a lower portion located in the freezing inner container 30 and an upper portion located in the refrigerating inner container 20. The bottom end of the upper part of the air inlet duct 410 is provided with an air opening 421, the lower part of the air inlet duct 410 is provided with an air opening 413, and the air opening 421 is communicated with the air opening 413 through an air pipe. The plurality of outlets 415 are used to distribute cool air to different height areas of the refrigerating compartment 201, and the cool air of the refrigerating compartment 201 may flow down into the variable temperature compartment 202. Two return air ducts 430 are provided inside the lateral both sides of the casing 10, respectively. The inlet of each return air duct 430 is communicated with the refrigerating chamber 201 and the temperature changing chamber 202, and the outlet is communicated with the cooling chamber 303, so that the air in the refrigerating chamber 201 and the air in the temperature changing chamber 202 can flow back to the cooling chamber 303 and continue to be cooled by the evaporator 800, and a circulation is formed. The front part of the hood plate 820 is provided with a return air inlet 821 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, thereby forming a circulation.

As shown in fig. 1, an air intake fan 419 is disposed at the connection between the air intake duct 410 and the cooling chamber 303. The intake fan 419 is used to suck the cold in the cooling chamber 303 into the intake duct 410. The intake air fan 419 may be an axial flow fan.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A refrigerator, comprising:

a freezing chamber located at the bottom of the refrigerator;

A cooling chamber located below the freezing chamber to deliver cool air to the freezing chamber, an evaporator of the refrigerator being placed in the cooling chamber in a horizontal posture;

The compressor bin is positioned at the rear lower part of the cooling chamber and is used for accommodating a compressor of a refrigerator;

The evaporating dish is arranged in the press bin;

the drain pipe is downwards inclined and extends to the evaporation pan from the bottom of the water pan and is used for leading the liquid water in the water pan into the evaporation pan to carry out endothermic evaporation; and

At least one branch pipe extending downwards from the drain pipe to the outside of the refrigerator so as to discharge the solid matter entering the drain pipe through the branch pipe, wherein the bottom end of each branch pipe is provided with a blocking cap for blocking the passage of the branch pipe.

2. The refrigerator of claim 1, wherein

The number of the at least one branch pipe is multiple, and the branch pipes are sequentially arranged along the extending direction of the drain pipe.

3. The refrigerator of claim 2, wherein

The inner diameters of the branch flow pipes are set to be different from each other; and is

Along the water flow direction of the drain pipe, the inner diameter of the branch pipe is gradually reduced.

4. the refrigerator of claim 1, wherein

And the branch pipe is connected to the end part of the drain pipe connected with the water pan.

5. The refrigerator of claim 1, wherein

the drain pipe penetrates through the side wall of the evaporation dish to inject liquid water into the evaporation dish.

6. The refrigerator of claim 1, wherein

The included angle between the water drainage pipe and the horizontal plane is not less than 6 degrees.

7. the refrigerator of claim 1, wherein

The water receiving tray is in a funnel shape which gradually inclines downwards and extends from the edge to the center.

8. The refrigerator of claim 1, wherein

The rear side of the bottom of the shell is provided with the press bin;

The freezing inner container is arranged at the bottom of the inner side of the shell and is limited with the freezing chamber, a cover shell is arranged in the freezing inner container, and the cover shell covers and buckles the bottom of the freezing inner container so as to form the cooling chamber at the bottom of the freezing chamber; and

and the foaming layer is formed between the shell and the freezing inner container.

9. the refrigerator of claim 8, wherein

The bottom wall part area of the freezing inner container is recessed downwards to form the water receiving tray.

10. The refrigerator of claim 8, wherein

the top of the front side of the cover casing is provided with an inclined plane part which gradually inclines upwards from the front to the back, and the inclined plane part is provided with a plurality of air return holes so as to allow the freezing chamber to return air to the cooling chamber.