WO2021212970A1

WO2021212970A1 - Refrigerator

Info

Publication number: WO2021212970A1
Application number: PCT/CN2021/075838
Authority: WO
Inventors: 边昭斌; 周文
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2020-07-24
Filing date: 2021-02-07
Publication date: 2021-10-28
Also published as: CN213040839U

Abstract

A refrigerator, comprising a refrigerating chamber, a freezing chamber (1), an evaporation chamber, and an evaporator (2) arranged in the evaporation chamber. The refrigerator further comprises an air duct assembly (3) arranged on one side of the evaporator (2), wherein the air duct assembly (3) comprises a refrigerating air duct (30), a freezing air duct (31), and a refrigerating fan (301) and a freezing fan (311), which are respectively arranged in the refrigerating air duct (30) and the freezing air duct (31), and a partition plate (32) located between the refrigerating fan (301) and the freezing fan (311); the refrigerating air duct (30) and the freezing air duct (31) are respectively in communication with the evaporation chamber; and the refrigerating air duct (30) or the freezing air duct (31) is provided with a first air outlet (33) and a second air outlet (34), which respectively supply cold to the refrigerating chamber and the freezing chamber (1), and an air door (35) for controlling the opening and closing of the first air outlet (33) and the second air outlet (34). The refrigerating fan (301) can be prevented from being frozen by the freezing fan (311), and the evaporation chamber is directly in communication with the refrigerating air duct (30) and the freezing air duct (31), such that the refrigeration efficiency is relatively high.

Description

refrigerator

Technical field

The invention relates to a refrigerator, in particular to a refrigerator with a faster cooling rate.

Background technique

When users in certain areas use refrigerators, the voltage is unstable and the power is easily cut off due to the influence of local economic and environmental factors. Therefore, in the energized state, in order to ensure that food, beverages and other storage items do not deteriorate, it is necessary to reduce the temperature of the compartment to a specific temperature or below the user set temperature as quickly as possible. At the same time, some users often put a large amount of water in the refrigerator to get cold water or ice cubes for drinking. The heat load brought to the refrigerator is huge, and it is also necessary to strengthen the refrigerator refrigeration to avoid the slow cooling rate. The experience is not good.

The existing single-system refrigerator design is basically based on a single fan, and the rapid cooling can be achieved simply by increasing the number of fans. For example, a refrigerating fan is installed in the refrigerator compartment and a freezing fan in the freezing compartment. However, in this method, the refrigerating fan and the freezing fan are in the same In the area, when the refrigerating fan is not working, the refrigerating fan is likely to freeze when the refrigerating fan is working, causing the refrigerating room to fail to cool normally.

In view of this, it is necessary to improve the existing refrigerators to solve the above-mentioned problems.

Summary of the invention

The object of the present invention is to provide a refrigerator with a faster cooling rate.

In order to achieve the above-mentioned object of the invention, the present invention provides a refrigerator including a refrigerating chamber, a freezing chamber, an evaporation chamber, and an evaporator arranged in the evaporation chamber, wherein the refrigerator further includes an air duct arranged on one side of the evaporator The air duct assembly includes a refrigerating air duct, a freezing air duct, a refrigerating fan and a freezing fan respectively arranged in the refrigerating air duct and the freezing air duct, and a partition between the refrigerating fan and the freezing fan, the refrigerating air duct And the freezing air duct are respectively connected to the evaporation chamber, and the refrigerating air duct or the freezing air duct has a first air outlet and a second air outlet for supplying cooling to the refrigerating chamber and the freezing chamber respectively, and controlling the first air outlet and the second air outlet Air door opening and closing

As a further improvement of the present invention, the air duct assembly is arranged in the freezer compartment, and the air duct assembly and the freezer compartment at the back form an evaporation chamber containing the evaporator. The air duct assembly has an air duct cover, and The refrigerating air duct and the freezing air duct are formed on the rear side of the air duct cover, and are arranged at intervals on the left and right sides of the air duct cover. The partition is located between the refrigerating air duct and the freezing air duct, and the evaporator is located in the refrigerating air duct And below the freezing air duct.

As a further improvement of the present invention, the air duct assembly further includes an air duct back plate located on the rear side of the air duct cover plate, an air duct middle plate located between the air duct cover plate and the air duct back plate, and the air duct cover plate and the air duct middle plate. The plate and the air duct back plate jointly form a refrigerated air duct, an air outlet cavity is formed between the air duct cover plate and the air duct middle plate, and an air inlet cavity is formed between the air duct middle plate and the air duct back plate.

As a further improvement of the present invention, the refrigerating air duct has a first air outlet and a second air outlet for supplying cooling to the refrigerating compartment and the freezing compartment respectively, and the first air outlet and the second air outlet are arranged on the air duct middle plate And located at the rear side of the air duct middle plate, the air duct cover plate has a third air outlet that directly supplies cooling to the freezer compartment, the air duct middle plate also has a fourth air outlet communicating with the air outlet cavity, and the second air outlet The air outlet and the fourth air outlet are connected, and the projections of the third air outlet and the fourth air outlet in the front and rear directions do not overlap.

As a further improvement of the present invention, the refrigerating chamber is located above the freezing chamber, the first air outlet extends upward to communicate with the refrigerating chamber, and the air door is arranged on the air duct middle plate and can be located between the first air outlet and the second air outlet. Switch.

As a further improvement of the present invention, the air duct back plate has openings respectively communicating with the evaporation chamber, and the refrigerating fan is a centrifugal fan arranged between the air duct middle plate and the air duct back plate and corresponding to the opening, so The refrigerating fan is a centrifugal fan arranged between the air duct cover plate and the air duct back plate and corresponding to the opening.

As a further improvement of the present invention, the air duct cover forming the freezing air duct further has a freezing air outlet for supplying cold to the freezing chamber, and the freezing air outlet is provided with a damper.

As a further improvement of the present invention, the evaporation chamber is arranged in the middle partition between the refrigerating chamber and the freezing chamber, the refrigerating air duct and the freezing air duct are respectively located on the rear side of the refrigerating chamber and the freezer, and the partition is connected to A refrigerating fan and a freezing fan are separated between the evaporator and the inner liner of the refrigerator, and the refrigerator is also provided with a refrigerating return air outlet and a freezing return air outlet that penetrate the central partition to respectively connect the evaporation chamber.

As a further improvement of the present invention, a through hole connecting the refrigerating air duct and the freezing air duct is provided on the partition, and the air door is arranged at the through hole to open or close the through hole.

As a further improvement of the present invention, the refrigerator further includes a drain pipe arranged on the rear side of the evaporation chamber, and the evaporator is gradually inclined upward from the back to the front.

The beneficial effects of the present invention: the refrigerator of the present invention includes a refrigerating fan and a freezing fan respectively arranged in the refrigerating air duct and the freezing air duct, and a partition between the refrigerating fan and the freezing fan, the refrigerating air duct and the freezing air duct respectively In communication with the evaporation chamber, the refrigerating air duct or the freezing air duct has a first air outlet and a second air outlet for supplying cooling to the refrigerating chamber and the freezing chamber respectively, and a damper that controls the opening and closing of the first air outlet and the second air outlet . Not only does the partition block the refrigerating fan and the freezing fan, it can prevent the freezing fan from freezing the refrigerating fan when the refrigerating fan is not working, and the evaporation chamber is directly connected to the refrigerating air duct and the freezing air duct. The refrigeration efficiency is high, and the refrigerating air duct is at the same time Or the freezing air duct can also realize the function of separately supplying cold to the refrigerator compartment and the freezer compartment.

Description of the drawings

Fig. 1 is a perspective view of a first embodiment of a refrigerator according to the present invention.

Fig. 2 is a three-dimensional schematic diagram of the air duct assembly of the present invention.

Fig. 3 is another perspective view of the air duct assembly of Fig. 2 and a three-dimensional schematic view of the evaporator.

Fig. 4 is an exploded perspective view of Fig. 3.

Fig. 5 is a rear view of Fig. 3 with the back plate of the air duct hidden.

Fig. 6 is a side cross-sectional view of Fig. 2.

Fig. 7 is a schematic side view of the second embodiment of the refrigerator of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to Figures 1 to 7 showing an embodiment of the refrigerator of the present invention. The refrigerator includes a refrigerating chamber (not shown), a freezing chamber 1, an evaporation chamber, and an evaporator 2 arranged in the evaporation chamber. The refrigerator also includes an air duct assembly 3 arranged on one side of the evaporator 2. The air duct assembly 3 includes a refrigerating air duct 30, a freezing air duct 31, and a refrigerating fan respectively arranged in the refrigerating air duct 30 and the freezing air duct 31 301 and the freezing fan 311, the partition 32 between the refrigerating fan 301 and the freezing fan 311, the refrigerating air duct 30 and the freezing air duct 31 are respectively connected to the evaporation chamber, the refrigerating air duct 30 or the freezing air duct 31 It has a first air outlet 33 and a second air outlet 34 for supplying cooling to the refrigerating compartment and the freezer compartment 1, respectively, and a damper 35 for controlling the opening and closing of the first air outlet 33 and the second air outlet 34.

Specifically, Figures 1 to 6 show the first embodiment of the refrigerator of the present invention. The refrigerator includes an inner liner forming the refrigerating compartment and the freezing compartment 1. The refrigerating compartment and the freezing compartment 1 may be The traditional up-and-down arrangement can also be a side-by-side door arrangement. In this embodiment, the up-and-down arrangement of the refrigerating compartment and the freezing compartment 1 is taken as an example for illustration.

The evaporation chamber is arranged on the rear side of the freezer compartment 1, the air duct assembly 3 is arranged in the freezer compartment 1, and a shelter is formed between the air duct assembly 3 and the inner bladder of the freezer compartment 1 on the rear side. The evaporation chamber of the evaporator 2.

In this embodiment, the air duct assembly 3 has an air duct cover plate 36 located on the front side, and the refrigerating air duct 30 and the freezing air duct 31 are formed on the rear side of the air duct cover plate 36 and spaced apart from each other. Set on the left and right sides of the air duct cover 36, the partitions 32 are located between the refrigerating air duct 30 and the freezing air duct 31, and the evaporator 2 is located below the refrigerating air duct 30 and the freezing air duct 31. Of course, in other embodiments, the refrigerating air duct 30 and the freezing air duct 31 may also be arranged up and down at intervals.

Therefore, the partition 32 can block the refrigerating fan 301 and the freezing fan 311 in the lateral direction, and the airflow generated by the refrigerating fan 301 and the freezing fan 311 will not affect each other, thereby avoiding cross-winding, and when the refrigerating room does not need to cool down , The refrigerating fan 301 stops working, and the freezing fan 311 is working normally. At this time, due to the blocking of the partition 32, the cold air blown by the freezing fan 311 will not be blown to the refrigerating fan 301, which prevents the refrigerating fan 301 from freezing and even being affected. damage.

In this embodiment, the refrigerating air duct 30 has a first air outlet 33 and a second air outlet 34 for supplying cooling to the refrigerating compartment and the freezing compartment 1, respectively. Therefore, when the refrigerating air duct 30 and the freezing air duct 31 are arranged up and down At this time, the refrigerating air duct 30 should be arranged above the freezing air duct 31 to ensure that the refrigerating air duct 30 can smoothly upwardly provide cooling for the refrigerating chamber. However, in the case of a side-by-side refrigerator, when the refrigerating air duct 30 and the freezing air duct 31 are arranged on the left and right, only the refrigerating air duct 30 is arranged close to the refrigerating compartment, and when the refrigerating air duct 30 and the freezing air duct 31 are arranged up and down, then There is no need to specially set the upper and lower positional relationship, and it is only necessary to ensure that the refrigerating air duct 30 can supply cold to the refrigerating chamber.

Specifically, as shown in FIGS. 4 to 6, the air duct assembly 3 further includes an air duct back plate 37 located on the rear side of the air duct cover 36, and an air duct located between the air duct cover 36 and the air duct back plate 37. In this embodiment, the air duct cover 36, the air duct middle plate 38 and the air duct back plate 37 jointly form the refrigerating air duct 30, and the air outlet cavity 361 is formed between the air duct cover 36 and the air duct middle plate 38. An air inlet cavity 371 is formed between the duct middle plate 38 and the air duct back plate 37, and the air inlet cavity 371 and the air outlet cavity 361 communicate with each other. The air duct cover plate 36 and the air duct back plate 37 form a freezing air duct 31.

The first air outlet 33 and the second air outlet 34 are arranged on the rear side of the air duct middle plate 38, wherein the air duct middle plate 38 has a base plate 381 and a number of protrusions protruding backward from the base plate 381. In an embodiment, the bumps include first bumps 382 and second bumps 383 disposed on the upper side of the substrate 381 and spaced along the lateral direction, and third bumps 384 disposed below the first bumps 382. Two bumps 383 are arranged close to the partition 32, the first air outlet 33 is formed between the third bump 384 and the second bump 383, and the first air outlet 33 is formed between the first bump 382 and the third bump 384. The second air outlet 34, therefore, the first air outlet 33 can extend upward to communicate with the refrigerating compartment and provide cooling to it.

The air duct cover plate 36 also has a third air outlet 362 that directly supplies cooling to the freezer compartment 1, and the air duct middle plate 38 also has a fourth air outlet 385 communicating with the third air outlet 362. In this embodiment The fourth air outlet 385 penetrates the base plate 381 in the front and rear direction, and is connected to the air outlet cavity 361, so that cold air enters the air outlet cavity 361 through the fourth air outlet 385 and then enters through the third air outlet 362 Freezer 1.

Wherein, the second air outlet 34 and the fourth air outlet 385 are connected, and the fourth air outlet 385 is located on one side of the second air outlet 34 in the transverse direction. In this embodiment, the fourth air outlet The air outlet 385 is located between the first protrusion 382 and the third protrusion 384, and the projections of the third air outlet 362 and the fourth air outlet 385 in the front and rear directions do not overlap. Therefore, when the cold air is blown out from the fourth air outlet 385, it will not be directly blown out from the third air outlet 362, but first enters the air outlet cavity 361 and is evenly distributed in it, and then blows along the third air outlet 362 to the freezer compartment 1. , So as to avoid the cold wind blowing directly on the food surface.

In this embodiment, the damper 35 is arranged on the base plate 381 of the air duct middle plate 38, and can be switched between the first air outlet 33 and the second air outlet 34. Specifically, the damper 35 is arranged on the first air outlet 33 and the second air outlet 34. At the intersection of an air outlet 33 and a second air outlet 34, the air door 35 can close the first air outlet 33 to open the second air outlet 34, or close the second air outlet 34 to make the first air outlet 33 By opening, only one damper 35 is needed to control the opening and closing of the two air outlets, which reduces the production cost. Of course, in other embodiments, the first air outlet 33 and the second air outlet 34 may be provided with dampers 35 respectively.

In this embodiment, the air duct middle plate 38 is only arranged in the refrigerating air duct 30, of course, in other embodiments, it can also be arranged in the freezing air duct 31.

The air duct assembly 3 also has a side plate 39 located around the air duct cover 36 and the air duct back plate 37 except for the position of the partition 32, the side plate 39 and the air duct cover 36, the air duct middle plate 38, and the air duct The back plate 37 jointly forms the refrigerating air duct 30. The side plate 39, the air duct cover 36 and the air duct back plate 37 jointly form the freezing air duct 31, wherein the side plate 39 can be combined with the air duct cover 36 or the air duct middle plate 38 or the air duct back plate 37. Integral molding can also be separate molding.

In order to facilitate the return of air from the refrigerator compartment and the freezer compartment 1, the return air passage of the refrigerator compartment can be opened from the inner bladder at the back of the refrigerator compartment and connected to the evaporation chamber. The return air from the freezer compartment 1 only needs to be on the lower side of the air duct cover 36 Just set up a number of refrigerated return air vents 6.

The air duct back plate 37 has openings 372 communicating with the evaporation chamber and the air inlet cavity 371 respectively, and the refrigerating fan 301 is arranged between the air duct middle plate 38 and the air duct back plate 37 and corresponds to the opening 372 Centrifugal fan. The freezing fan 311 is a centrifugal fan provided between the air duct cover 36 and the air duct back plate 37 and corresponding to the opening 372. Therefore, the centrifugal fan in the refrigerating air duct 30 can be removed from the evaporation chamber The cold air is sucked in and blown out to the surroundings, and finally blown out from the first air outlet 33 and the second air outlet 34 respectively to enter the refrigerator compartment and the freezer compartment 1.

The air duct cover 36 forming the freezing air duct 31 also has a freezing air outlet 363 for cooling the freezing compartment 1. In this embodiment, the freezing air outlet 363 and the third air outlet 362 are both provided with air doors. Therefore, when the refrigerator needs more refrigerating space, the temperature of the freezer compartment 1 can be increased to increase its temperature into a refrigerating compartment. The temperature of the freezer compartment 1 is controlled by opening and closing the air door. When the dampers of 363 and the third air outlet 362 are all closed, the temperature in the freezer compartment 1 gradually rises. When it rises to the refrigerating temperature, part of the dampers can be opened appropriately to maintain the refrigerating temperature, thereby realizing the conversion of the freezer compartment 1 into a refrigerating compartment Function.

The partition 32 protrudes backward to the rear side of the air duct back plate 37, so that the interference of the freezing fan 311 on the refrigerating fan 301 can be further blocked.

The cold air flow of the refrigerating air duct 30 is as follows: first enter the air inlet cavity 371 from the opening 372, and then enter the refrigerating chamber from the first air outlet 33, or enter the fourth air outlet 385 from the second air outlet 34, and enter the outlet The air cavity 361 finally enters the freezing compartment 1 through the third air outlet 362.

The air supply logic of this embodiment is:

When the refrigerating compartment and the freezing compartment 1 need to be cooled at the same time, the air door is controlled to open the first air outlet 33, and the refrigerating fan 301 sucks in cold air from the evaporation chamber into the air inlet chamber 371, and supplies the refrigerating room along the first air outlet 33. When cold, the freezing fan 311 simultaneously sucks in cold air from the evaporation chamber and supplies cold to the freezing chamber 1 through the freezing air outlet 363. The angle of the air door 35 can also be adjusted so that both the first air outlet 33 and the second air outlet 34 remain open.

When only the freezer compartment 1 needs to be cooled, the air door 35 can be controlled to close the first air outlet 33, thereby maximizing the opening of the second air outlet 34. Therefore, the refrigerating fan 301 and the freezing fan 311 can be used as the freezer at the same time. 1 for cooling.

When the freezer compartment 1 needs to be converted into a refrigerating compartment, the third air outlet 362 and the freezing air outlet 363 are all closed or partially closed to increase the temperature of the freezer compartment 1, so that the freezer compartment 1 becomes a refrigerating compartment.

As shown in FIG. 7, it is the second embodiment of the refrigerator of the present invention. The difference from the first embodiment is that the evaporation chamber is arranged in the middle partition 4 between the refrigerator compartment and the freezer compartment 1, and the refrigerator The air duct 30 and the freezing air duct 31 are respectively located at the rear side of the refrigerator compartment and the freezer compartment 1, and the partition 32 is connected between the evaporator 2 and the inner liner of the refrigerator to separate the refrigerating fan 301 and the freezing fan 311. The refrigerator also has The middle partition plate 4 is penetrated to connect the refrigerating return air opening 5 and the freezing return air opening 6 of the evaporation chamber, respectively. By arranging the evaporation chamber in the central partition 4, the volume ratio of the refrigerator can be effectively increased.

The partition 32 is provided with a through hole (not shown) connecting the refrigerating air duct 30 and the freezing air duct 31, and the through hole is the second air outlet 34 for cooling the freezer compartment 1, and the air door 35 Set at the through hole to open or close the through hole. When the refrigerator compartment and the freezer compartment 1 require cooling, the air door is in a closed state, that is, the refrigerator fan 301 and the freezer fan 311 supply the refrigerator compartment and the freezer compartment 1, respectively. cold. When the freezer compartment 1 only needs to be cooled and the cooling needs to be accelerated, the refrigerating air outlet can be closed and the through hole can be opened, so that the cold air in the refrigerating air duct 30 can enter the freezing air duct 31 through the through hole. Thereby, the cooling rate of the freezer compartment 1 is accelerated.

And when there are enough items to be refrigerated, the temperature of the freezer compartment 1 can also be adjusted by controlling the opening and closing of the freezer air outlet 363, so that the freezer compartment 1 can be transformed into a refrigerating compartment to meet the needs of more users.

In this embodiment, the refrigerator further includes a drain pipe 7 arranged on the rear side of the evaporation chamber, and the evaporator 2 is gradually inclined upward from back to front. Therefore, when the evaporator 2 defrosts, the evaporator Water on the surface of 2 is more likely to flow on the side of drain pipe 7, thereby improving drainage efficiency.

In summary, the refrigerator of the present invention includes a refrigerating fan 301 and a freezing fan 311 respectively arranged in the refrigerating air duct 30 and the freezing air duct 31, and a partition 32 located between the refrigerating fan 301 and the freezing fan 311. The air duct 30 and the freezing air duct 31 are respectively communicated with the evaporation chamber, and the refrigerating air duct 30 or the freezing air duct 31 has a first air outlet 33 and a second air outlet 34 that supply cold to the refrigerating compartment and the freezing compartment 1, respectively. A damper 35 that controls the opening and closing of the first air outlet 33 and the second air outlet 34. The partition plate 32 not only blocks the refrigerating fan 301 and the freezing fan 311, it can prevent the freezing fan 311 from freezing the refrigerating fan 301 when the refrigerating fan 301 is not working, and the evaporation chamber directly connects the refrigerating air duct 30 and the freezing air duct 31 to refrigerate The efficiency is high, and at the same time, the refrigerating air duct 30 or the freezing air duct 31 can also realize the function of supplying cold to the refrigerating compartment and the freezing compartment 1 respectively.

It should be understood that although this specification is described in accordance with the embodiments, not each embodiment only contains an independent technical solution. This narration in the specification is only for clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention All should be included in the protection scope of the present invention.

Claims

A refrigerator includes a refrigerating chamber, a freezing chamber, an evaporation chamber, and an evaporator arranged in the evaporation chamber. The characteristic is that the refrigerator further includes an air duct assembly arranged on one side of the evaporator, and the air duct assembly includes The refrigerating air duct, the freezing air duct, the refrigerating fan and the freezing fan respectively arranged in the refrigerating air duct and the freezing air duct, the partition between the refrigerating fan and the freezing fan, the refrigerating air duct and the freezing air duct are respectively connected to the evaporation cavity The refrigerating air duct or the freezing air duct is provided with a first air outlet and a second air outlet for supplying cooling to the refrigerating chamber and the freezing chamber respectively, and a damper that controls the opening and closing of the first air outlet and the second air outlet.
The refrigerator according to claim 1, wherein the air duct assembly is arranged in the freezer compartment, and the air duct assembly and the freezer compartment at the back form an evaporation chamber for accommodating the evaporator, and the air duct assembly has air A duct cover, the refrigerating air duct and the freezing air duct are formed on the rear side of the air duct cover, and are arranged at intervals on the left and right sides of the air duct cover, and the partition is located between the refrigerating air duct and the freezing air duct, The evaporator is located below the refrigerating air duct and the freezing air duct.
The refrigerator according to claim 2, wherein the air duct assembly further comprises an air duct back plate located on the rear side of the air duct cover plate, and an air duct middle plate located between the air duct cover plate and the air duct back plate. The duct cover plate, the air duct middle plate and the air duct back plate jointly form a refrigerated air duct, an air outlet cavity is formed between the air duct cover plate and the air duct middle plate, and an air inlet cavity is formed between the air duct middle plate and the air duct back plate.
The refrigerator according to claim 3, wherein the refrigerating air duct has a first air outlet and a second air outlet for supplying cold to the refrigerating compartment and the freezing compartment, respectively, the first air outlet and the second air outlet The air duct cover plate is provided with a third air outlet that directly supplies cooling to the freezer compartment, and the air duct middle plate also has a fourth air outlet that communicates with the air outlet cavity. , The second air outlet and the fourth air outlet are connected, and the projections of the third air outlet and the fourth air outlet in the front and rear directions do not overlap.
The refrigerator according to claim 4, wherein the refrigerating compartment is located above the freezing compartment, the first air outlet extends upward to communicate with the refrigerating compartment, and the air door is arranged on the middle plate of the air duct and can be installed between the first air outlet and the first air outlet. Switch between the two air outlets.
The refrigerator according to claim 3, wherein the air duct back plate has openings respectively communicating with the evaporation chamber, and the refrigerating fan is arranged between the air duct middle plate and the air duct back plate and corresponds to the An open centrifugal fan, the refrigerating fan is a centrifugal fan provided between the air duct cover plate and the air duct back plate and corresponding to the opening.
The refrigerator according to claim 2, wherein the air duct cover forming the freezing air duct further has a freezing air outlet for cooling the freezing chamber, and the freezing air outlet is provided with a damper.
The refrigerator according to claim 1, wherein the evaporation chamber is arranged in the middle partition between the refrigerating chamber and the freezing chamber, and the refrigerating air duct and the freezing air duct are respectively located on the rear side of the refrigerating chamber and the freezing chamber, The partition is connected between the evaporator and the inner liner of the refrigerator to separate the refrigerating fan and the freezing fan, and the refrigerator also has a refrigerating return air outlet and a freezing return air opening that penetrate the middle partition to connect to the evaporation chamber, respectively.
8. The refrigerator according to claim 8, wherein the partition is provided with a through hole connecting the refrigerating air duct and the freezing air duct, and the damper is provided at the through hole to open or close the through hole.
8. The refrigerator according to claim 8, wherein the refrigerator further comprises a drain pipe arranged on the rear side of the evaporation chamber, and the evaporator is gradually inclined upwardly from the back to the front.