CN110375483A - The refrigerator of front return air - Google Patents

Abstract

The invention provides a refrigerator with air return at the front. Wherein the refrigerator includes: a box body, which defines a cooling chamber and at least one storage space adjacent to the top of the cooling chamber. The space returns air to the cooling chamber; the door body is arranged on the front surface of the box to open and close the storage space operable; The space provides cooling. In the refrigerator of the present invention, the cooling chamber is arranged under the storage space, so that the storage space has a certain height from the ground, preventing users from bending over or squatting down to pick and place items, and directly passing through the storage space adjacent to the cooling chamber The air return port at the front end of the top wall of the cooling chamber is used for return air, which avoids setting a return air duct on the rear wall of the storage space to occupy the space in the depth direction of the refrigerator, and effectively increases the storage volume.

Description

front air refrigerator

technical field

The invention relates to the field of household electrical appliances, in particular to a refrigerator with front return air.

Background technique

With the development of society and the continuous improvement of people's living standards, people's pace of life is getting faster and faster, so they are more and more willing to buy a lot of food and put it in the refrigerator. The refrigerator has become one of the indispensable household appliances in people's daily life. .

Current refrigerators are generally provided with multiple storage spaces, which can be configured as refrigerating spaces, freezing spaces, variable temperature spaces or fresh-keeping spaces according to different purposes. It is very inconvenient for users to use the storage space at the bottom of the refrigerator, and they often need to squat down to operate, which affects the user experience. In addition, when the storage space at the bottom of the refrigerator is set to be opened in a drawer type, since the compressor compartment is often provided on the rear side of the bottom of the refrigerator, the compressor compartment needs to occupy a part of the drawer space, which makes the drawer have an abnormal shape, resulting in the storage at the bottom of the refrigerator. The space cannot be fully utilized. Moreover, the bottom drawer of the current refrigerator is too deep vertically, which causes the user to spend too much time searching for items, wasting the user's time and energy.

Contents of the invention

An object of the present invention is to increase the height of the storage space at the bottom of the refrigerator from the ground and reduce the operation of bending over to pick and place items.

A further object of the present invention is to improve the utilization of the storage space of the refrigerator and improve the user experience.

In particular, the present invention provides a refrigerator. The refrigerator includes: a box body, which defines a cooling chamber and at least one storage space adjacent to the top of the cooling chamber. The front end of the top wall of the cooling chamber is provided with a return air port communicating with the storage space to realize the storage space. return air to the cooling chamber; the door is arranged on the front surface of the box to operably open and close the storage space; Provides cooling.

Optionally, a plurality of storage spaces are defined inside the box, including a refrigerated space and at least one freezer space, and the box body includes: a freezer inner container, which defines a cooling chamber and at least one freezer space directly above the cooling chamber ; and a refrigerated liner, which is arranged directly above the refrigerated liner, and has a refrigerated space inside it.

Optionally, the refrigerator further includes: an evaporator cover plate, which is arranged above the evaporator, and serves as a top wall to jointly define a cooling chamber with the freezing inner container.

Optionally, the refrigerator also includes: an air supply duct, which is arranged on the inner side of the rear wall of the refrigerating inner container and the freezing inner container, and has an air supply inlet connected to the cooling chamber at the bottom end, and corresponding to the refrigerating space and the freezing space are respectively provided with The air supply outlet is used to transmit the cold energy provided by the evaporator to the storage space; and the return air duct is arranged on any side wall of the refrigerated inner container and the frozen inner container, and the upper end is provided with a return air duct connected to the refrigerated space. The air inlet is provided with a return air outlet connected to the cooling chamber at its lower end, so as to realize the air return from the refrigerated space to the cooling chamber.

Optionally, the return air inlet is arranged at the front part of the side wall of the refrigerating inner container, and the return air outlet is arranged at the front part of the side wall at the same side of the freezing inner container.

Optionally, there are two return air ducts, which are symmetrically arranged at the front of the two side walls of the refrigerated inner container and the frozen inner container.

Optionally, the outlet of the return air is provided with a drainage slope and a heating wire, so as to drain the ice water present at the outlet of the return air.

Optionally, the box further includes: a shell disposed on the outside of the freezer liner and the refrigerated liner; and an insulating layer disposed between the shell and the refrigerated liner and the freezer liner to insulate the heat from outside the refrigerator.

Optionally, the casing includes: a first bottom plate, arranged below the freezer inner container, including: a front bottom plate located at 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 backward from the upper end of the inclined plate The extended rear top plate is provided with a window on the inclined plate; the second bottom plate is located under the rear top plate, and the front end of the second bottom plate is spaced from the rear end of the front bottom plate to form a gap; The gap is divided into a heat dissipation air inlet and a heat dissipation air outlet.

Optionally, the casing further includes: two side plates and a back plate, configured to jointly define a compressor compartment with the rear top plate and the second bottom plate, the compressor compartment is located at the rear of the cooling chamber, and the refrigerator further includes: The condenser, heat dissipation fan and compressor are arranged in sequence along the horizontal direction in the machine compartment, wherein the condenser is arranged on the side close to the heat dissipation air inlet, the compressor is arranged on the side close to the heat dissipation air outlet, and the heat dissipation fan is arranged on the condenser and the compressor between machines.

The refrigerator of the present invention comprises: a box body, which defines a cooling chamber and at least one storage space adjacently arranged above the cooling chamber; The storage space returns air to the cooling chamber; the door is arranged on the front surface of the box to open and close the storage space; and the evaporator is placed horizontally in the cooling chamber in the form of a flat Storage space provides cooling. Setting the cooling chamber under the storage space can make the storage space have a certain height from the ground, avoiding the user from bending over or squatting down to pick and place items, and improving the user experience. The storage space adjacent to the top of the cooling chamber returns air directly through the return air outlet at the front end of the top wall of the cooling chamber, avoiding the space in the depth direction of the refrigerator occupied by the return air duct on the rear wall of the storage space, and effectively increasing the storage volume.

Further, the refrigerator of the present invention also includes: a return air duct, which is arranged on any side wall of the refrigerating inner container and the freezing inner container, and its upper end is provided with a return air inlet communicating with the refrigerating space, and its lower end is provided with a connecting The return air outlet of the cooling room to realize the return air from the refrigerated space to the cooling room. It can avoid that when the cooling chamber is arranged below the freezing space, it can only return air to the freezing space, but cannot return air to the refrigerating space above the freezing space, effectively ensuring the reliability of the overall air circulation of the refrigerator.

Furthermore, in the refrigerator of the present invention, the cooling chamber and the compressor compartment are both arranged at the bottom of the box body, and the compressor compartment is arranged at the rear of the cooling chamber, so that the storage space above the compressor compartment and the cooling chamber is realized as a flat space , Compared with the special-shaped space, the utilization of the storage space is improved. In addition, the depth of the storage space is effectively reduced, so that the items are changed from stacked storage to unfolded storage, which is convenient for users to find items, saves time and energy for users, and further improves user experience. The condenser, heat dissipation fan and compressor are arranged in sequence in the horizontal direction in the compressor compartment, the condenser is arranged on the side close to the heat dissipation air inlet, the compressor is arranged on the side close to the heat dissipation air outlet, and the heat dissipation fan is arranged Between the machines, this setting ensures that the technical requirements are met and the space is effectively used to reduce the area occupied by the storage space.

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 an internal schematic view of a refrigerator according to an embodiment of the present invention;

Fig. 3 is an exploded schematic diagram of a refrigerator according to an embodiment of the present invention;

Fig. 4 is a partial schematic diagram of a refrigerator according to an embodiment of the present invention;

5 is a partial sectional view of a refrigerator according to an embodiment of the present invention;

Figure 6 is an enlarged schematic view of the region R in Figure 5;

Fig. 7 is a partial schematic diagram of a refrigerator according to another embodiment of the present invention;

Fig. 8 is a structural schematic view of the bottom of the refrigerator according to an embodiment of the present invention; and

FIG. 9 is an exploded schematic diagram of FIG. 8 .

Detailed ways

This embodiment firstly provides a refrigerator. The cooling chamber is arranged under the storage space, which can make the storage space have a certain height from the ground, avoiding the user to bend down or squat down to pick and place items, and improve the user's convenience. experience. The storage space adjacent to the top of the cooling chamber returns air directly through the return air outlet at the front end of the top wall of the cooling chamber, avoiding the space in the depth direction of the refrigerator occupied by the return air duct on the rear wall of the storage space, and effectively increasing the storage volume. FIG. 1 is a schematic structural diagram of a refrigerator 100 according to an embodiment of the present invention, FIG. 2 is an internal schematic diagram of the refrigerator 100 according to an embodiment of the present invention, and FIG. 3 is an exploded schematic diagram of the refrigerator 100 according to an embodiment of the present invention. As shown in FIGS. 1 to 3 , the refrigerator 100 of this embodiment may generally include: a box body 10 , a door body 20 and an evaporator 21 .

Wherein, the box body 10 defines a cooling chamber 11 and at least one storage space adjacent to the top of the cooling chamber 11, and the front end of the top wall of the cooling chamber 11 is provided with a return air port 112 communicating with the storage space to realize this. The storage space returns air to the cooling chamber 11 . It can avoid the space in the depth direction of the refrigerator 100 occupied by the return air duct arranged on the rear wall of the storage space, thereby effectively increasing the storage volume.

As shown in FIG. 2 , the refrigerator 100 of this embodiment may include three storage spaces arranged from top to bottom: a first space 131 , a second space 132 and a third space 133 . The first space 131 , the second space 132 and the third space 133 can be configured as refrigerated space, frozen space, variable temperature space or fresh-keeping space according to different purposes. Each storage space can be divided into multiple storage areas by a partition board, and items can be stored using shelves or drawers.

Specifically, a plurality of storage spaces are defined inside the box body 10 of the refrigerator 100 in this embodiment, including a refrigerating space and at least one freezing space. As shown in FIG. 2 and FIG. 3 , the box body 10 may include: a refrigerating inner container 72 and a freezing inner container 71 . Wherein, the freezing inner container 71 defines a cooling chamber 11 and at least one freezing space directly above the cooling chamber 11 . The refrigerated inner container 72 is arranged directly above the frozen inner container 71, and a refrigerated space is defined inside it. Specifically, the interior of the refrigerating inner container 72 of this embodiment defines a first space 131, and can be set as a refrigerating space, and the interior of the freezing inner container 71 defines a second space 132, a third space 133 and a cooling chamber 11, and The second space 132 and the third space 133 may be set as freezing spaces, and the cooling chamber 11 is set right below the second space 132 and the third space 133 .

In addition, the box body 10 may further include: a casing 60 and an insulating layer (not shown in the figure). Wherein, the casing 60 is disposed outside the freezing inner container 71 and the refrigerating inner container 72 . The insulation layer is arranged between the casing 60 and the refrigerating inner container 72 and the freezing inner container 71 to insulate the heat outside the refrigerator 100 .

The door body 20 is disposed on the front surface of the box body 10 to operably open and close the storage space. The door body 20 is arranged corresponding to the storage space, that is, each storage space corresponds to one or more door bodies. The door body 20 may be pivotally disposed on the front surface of the box body 10 , for example, the door body of the first space 131 in this embodiment may be pivotally opened. The second space 132 and the third space 133 in this embodiment can be opened in a drawer type. The bottoms of the second space 132 and the third space 133 may be provided with drawer slide rails to ensure soft opening and closing of the drawers and reduce noise.

The evaporator 21 is in the shape of a flat cube and placed horizontally on the cooling chamber 11, and is configured to provide cold energy to the storage space. The evaporator 21 is placed horizontally in the cooling chamber 11 in the shape of a flat cube as a whole, that is, the long and wide surfaces of the evaporator 21 are parallel to the horizontal plane, and the thickness surface of the evaporator 21 is placed perpendicular to the horizontal plane. The cooling capacity provided by the evaporator 21 to various types of storage spaces is different, so that the temperatures in the various types of storage spaces are also different. For example, the temperature in the refrigerated space is generally between 2°C and 10°C, preferably between 4°C and 7°C. The temperature range in the refrigerated space is typically -22°C to -14°C. The optimal storage temperature for different types of items is not the same, and thus the suitable storage space for storage is also different. For example, fruits and vegetables are suitable for storage in refrigerated space or fresh-keeping space, while meat food is suitable for storage in freezer space.

As shown in FIG. 3 , the refrigerator 100 may further include: an evaporator cover plate 111 , which is disposed above the evaporator 21 , and serves as a top wall to define the cooling chamber 11 together with the freezing liner 71 . In a preferred embodiment, the front end of the evaporator cover plate 111 is provided with an air return port 112 communicating with the refrigerated space, so as to return air from the refrigerated space to the cooling chamber 11 . Specifically, the air return port 112 may be in the shape of a louver. In this embodiment, the second space 132 and the third space 133 are refrigerated spaces, adjacently arranged above the cooling chamber 11 , and can return air to the cooling chamber 11 through the air return port 112 .

FIG. 4 is a partial schematic diagram of a refrigerator 100 according to an embodiment of the present invention. As shown in FIG. 3 , the refrigerator 100 may further include: an air supply duct 31 and a return air duct 32 . Wherein, the air supply duct 31 is arranged on the inner side of the rear wall of the refrigerating inner container 72 and the freezing inner container 71, as shown in Fig. 3 and Fig. 4 , its bottom end has an air supply inlet 312 communicating with the cooling chamber 11, and corresponds to the refrigerating space. The air supply outlet 311 is respectively provided in the storage space and the freezing space, so as to transmit the cold energy provided by the evaporator 21 to the storage space. Since the air outlet 311 is located at the rear of each storage space, the cooling capacity of each storage space is transferred from the rear to the front.

In a preferred embodiment, as shown in FIG. 4 , a cooling fan 22 can also be provided on the rear side of the evaporator 21, and the cooling fan 22 can be arranged on the rear side of the evaporator 21 with an inclination forward, and the outlet of the cooling fan 22 The direction of the wind may be directly facing the air supply inlet 312 , so that the cold generated by the evaporator 21 enters the air supply duct 31 smoothly. The angle between the axis of the cooling fan 22 and the inlet 312 is ±10°. Moreover, the included angle between the axis of the cooling fan 22 and the horizontal plane is 30° to 45°. The cooling fan 22 is arranged obliquely according to the above-mentioned angle, which can effectively ensure the smooth flow of the overall air path and improve the working reliability of the refrigerator 100 .

As shown in Figure 3, the return air duct 32 can be arranged on either side wall of the refrigerated liner 72 and the freezer liner 71, and its upper end is provided with a return air inlet that communicates with the refrigerated space, and its lower end is provided with a wall that communicates with the cooling chamber. 11 return air outlet to realize the return air from the refrigerated space to the cooling chamber 11. Specifically, the return air inlet is arranged at the front part of the side wall of the refrigerating inner container 72, the return air outlet 323 is arranged at the front part of the side wall at the same side of the freezing inner container 71, and the return air outlet 323 is arranged at the refrigerating chamber 11. On the side wall of the inner bag 71. The return air inlet and the return air outlet 323 are arranged at the front part of the side wall of the refrigerating liner 72 and the refrigerating liner 71, so that the cold inside the refrigerating space can fully cool down the refrigerating space from the back to the front, and return through the return air duct. to cooling chamber 11. In a preferred embodiment, two return air ducts 32 may be provided, and may be symmetrically arranged on the two side walls of the refrigerating inner container 72 and the freezing inner container 71 .

The first space 131 in this embodiment is a refrigerated space, and an independent temperature-variable space may also be provided inside it. A heater can be arranged inside the variable temperature space, which can heat the articles in a closed manner, without affecting the temperature of the external refrigerated space while heating the articles. Therefore, as shown in FIG. 4 , the first space 131 of this embodiment is provided with a refrigerated return air inlet 321 and a variable temperature return air inlet 322 , so that both the refrigerated space and the variable temperature space can return air independently through the return air duct 32 . After the air in the refrigerated space and the temperature-changing space returns to the cooling chamber 11 , it can also effectively defrost the evaporator 21 .

FIG. 5 is a partial sectional view of a refrigerator 100 according to an embodiment of the present invention, FIG. 6 is an enlarged schematic view of region R in FIG. 5 , and FIG. 7 is a partial schematic view of a refrigerator 100 according to another embodiment of the present invention. As shown in FIG. 5 and FIG. 6 , the region R is the return air outlet 323 where the return air duct 32 communicates with the cooling chamber 11 , where a drainage slope 33 is provided. As shown in FIG. 7 , a heating wire 34 is also provided at the return air outlet 323 . The drain slope 33 and the heating wire 34 work together to remove the ice water present at the return air outlet 323 . When the high-temperature and high-humidity gas in the refrigerated space is close to the ambient temperature under the circulation of the air duct, condensation or even frost may occur. For a long time, the return air outlet 323 where the return air duct 32 communicates with the cooling chamber 11 may be blocked by frost. To avoid this problem, a drain slope 33 and a heating wire 34 are provided here. The drain slope 33 can remove the ice water present there, and the heating wire 34 can work according to the corresponding program to assist in removing the ice water.

Fig. 8 is a structural schematic view of the bottom of the housing 60 of the refrigerator 100 according to an embodiment of the present invention, and Fig. 9 is an exploded schematic view of Fig. 8 . As shown in FIG. 8 and FIG. 9 , the housing 60 may include: a first bottom plate 61 , a second bottom plate 62 and an air guide cover plate 63 . Wherein, the first bottom plate 61 is arranged below the freezer inner container 71 and includes: a front bottom plate 611 located at the front side of the bottom of the refrigerator 100, an inclined plate 612 extending obliquely from the rear end of the front bottom plate 611 to the rear and upward, and an inclined plate 612 extending from the upper end of the inclined plate 612 to the bottom of the refrigerator. A window 614 is arranged on the rear top plate 613 and the inclined plate 612 extending from the rear. The second bottom plate 62 is located below the rear top plate 613 , and the front end of the second bottom plate 62 is spaced apart from the rear end of the front bottom plate 611 to form a gap. The air guide cover plate 63 covers the window 614 and divides the gap into a heat dissipation air inlet 121 and a heat dissipation air outlet 122 .

In addition, the housing 60 may further include: two side plates 64 and a back plate 65 configured to define a compressor compartment 12 together with the rear top plate 613 and the second bottom plate 62 , and the compressor compartment 12 is located behind the cooling chamber 11 . The refrigerator 100 may also include: a condenser 25, a heat dissipation fan 24 and a compressor 23 arranged in sequence in the transverse direction in the compressor compartment 12, and the condenser 25 is arranged on the side near the heat dissipation air inlet 121, and the compressor 23 is arranged on the side near the heat dissipation air inlet 121. On one side of the heat dissipation air outlet 122 , the heat dissipation fan 24 is arranged between the condenser 25 and the compressor 23 . The above-mentioned components are arranged in the compressor compartment 12 in such a way that the space is effectively used while ensuring that the technical requirements are met, and the area occupied by the storage space is reduced. In a specific embodiment, the refrigerator 100 may also include: an evaporating dish 50, arranged below the condenser 25, so as to evaporate the moisture in the evaporating dish 50 by utilizing the heat of the condenser 25, and the moisture is evaporated by the cooling fan 24. Take it away for cooling.

It should be noted that the refrigerator 100 of this embodiment can be a built-in refrigerator. In order to ensure the overall aesthetics, the reserved distance between the built-in refrigerator and the surrounding walls or cabinets is small, and the bottom air inlet and bottom air outlet can be adopted. Way. Therefore, the refrigerator 100 of this embodiment is respectively provided with a heat dissipation air inlet 121 and a heat dissipation air outlet 122 at the bottom of the housing 60. The wind outside the refrigerator 100 enters the compressor compartment 12 through the heat dissipation air inlet 121, and passes through the condenser 25 and the heat dissipation fan 24 in turn. and the compressor 23, and then flow out from the heat dissipation air outlet 122 to reasonably complete the entire heat dissipation cycle process.

The refrigerator 100 of this embodiment includes: a box body 10, which defines a cooling chamber 11 and at least one storage space adjacent to the top of the cooling chamber 11, and the front end of the top wall of the cooling chamber 11 is provided with a The air return port 112 is used to return air from the storage space to the cooling chamber 11; the door body 20 is arranged on the front surface of the box body 10 to operably open and close the storage space; and the evaporator 21 is in the shape of a flat cube as a whole The shape is horizontally placed in the cooling chamber 11, and is configured to provide cold energy to the storage space. Setting the cooling chamber 11 under the storage space can make the storage space have a certain height from the ground, avoiding the user to bend down or squat down to pick and place items, and improve the user experience. The storage space adjacent to the top of the cooling chamber 11 returns air directly through the return air outlet 112 at the front end of the top wall of the cooling chamber 11, avoiding the space in the depth direction of the refrigerator 100 occupied by the return air duct on the rear wall of the storage space, and effectively improving the storage capacity. object volume.

Further, the refrigerator 100 of this embodiment also includes: a return air duct 32, which is arranged on any side wall of the refrigerating inner container 72 and the freezing inner container 71, and the upper end thereof is provided with a return air inlet communicating with the refrigerating space, Its lower end is provided with a return air outlet 323 communicating with the cooling chamber 11, so as to realize return air from the refrigerated space to the cooling chamber 11. It can avoid that when the cooling chamber 11 is arranged below the freezing space, it can only return air to the freezing space, but cannot return air to the refrigerating space above the freezing space, effectively ensuring the reliability of the overall air circulation of the refrigerator 100 .

Furthermore, in the refrigerator 100 of this embodiment, the cooling chamber 11 and the compressor compartment 12 are all arranged at the bottom of the box body 10, and the compressor compartment 12 is arranged at the rear of the cooling chamber 11, so that the compressor compartment 12 and the cooling chamber 11 The upper storage space is implemented as a flat space, which improves the utilization of the storage space compared with the special-shaped space. In addition, the depth of the storage space is effectively reduced, so that the items are changed from stacked storage to unfolded storage, which is convenient for users to find items, saves time and energy for users, and further improves user experience. The condenser 25, the cooling fan 24 and the compressor 23 are arranged in the compressor compartment 12 along the horizontal direction, the condenser 25 is arranged on the side close to the heat dissipation air inlet 121, and the compressor 23 is arranged on the side close to the heat dissipation air outlet 122, The cooling fan 24 is arranged between the condenser 25 and the compressor 23, so that the space is effectively utilized while ensuring that the technical requirements are met, and the area occupied by the storage space is reduced.

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, comprising:

Cabinet, inside define cooling chamber and at least one be provided adjacent to the storage space above the cooling chamber, it is described The roof front end of cooling chamber is provided with the return air inlet for being connected to the storage space, to realize that the storage space is returned to the cooling chamber Wind；

Door body is set to the front surface of the cabinet, to be operationally opened and closed the storage space；And

Evaporator, entirety are in that flat cubic is horizontally placed on the cooling chamber, and is configured to provide to the storage space cold Amount.

2. refrigerator according to claim 1, wherein

The box house defines multiple storage spaces, including refrigerating space and at least one reefer space, and

The cabinet includes: refrigerated liner, inside define the cooling chamber and right above the cooling chamber at least One reefer space；And refrigeration liner, be set to right above the refrigerated liner, inside define the refrigeration sky Between.

3. refrigerator according to claim 2, further includes:

Evaporator cover board covers above the evaporator, and limits jointly with the refrigerated liner as roof described cold But room.

4. refrigerator according to claim 2, further includes:

Supply air duct is set on the inside of the refrigeration liner and the rear wall of the refrigerated liner, and bottom end has connection described cold But the air-supply entrance of room, and the corresponding refrigerating space and the reefer space are respectively arranged with air-supply outlet, by the steaming Cold quantity transmission that device provides is sent out to the storage space；And

Return airway is set on the refrigeration liner and any side wall of the refrigerated liner, and the upper end is provided with connection The return air inlet of the refrigerating space, lower end are provided with the return air outlet for being connected to the cooling chamber, to realize that the refrigeration is empty Between to the cooling chamber return air.

5. refrigerator according to claim 4, wherein

The return air inlet is set to the side wall front of the refrigeration liner, and it is same that the return air outlet is set to the refrigerated liner The side wall front of side.

6. refrigerator according to claim 4, wherein

The return airway is provided with two, and be symmetrically disposed on it is described refrigeration liner and the refrigerated liner two side walls before Portion.

7. refrigerator according to claim 4, wherein

The return air exit is provided with draining inclined-plane and heater strip, and ice water existing for the return air exit is excluded.

8. refrigerator according to claim 2, wherein the cabinet further include:

Shell is set to the outside of the refrigerated liner and the refrigeration liner；And

Insulating layer is set between the shell and the refrigeration liner and the refrigerated liner, to completely cut off outside the refrigerator Heat.

9. refrigerator according to claim 8, wherein the shell includes:

First bottom plate is set to the lower section of the refrigerated liner, comprising: positioned at the noseplate of refrigerator lower front, before described The rear top plate that base plate rear end tilts the hang plate of extension rearwardly and upwardly and extends back from the hang plate upper end, the inclination The window is provided on plate；

Second bottom plate is located at below the rear top plate, and second bottom plate front end and noseplate rear end interval are arranged with shape At gap；And

Wind-guiding cover board is covered at the window, and the gap is divided into heat dissipation air inlet and heat radiation air outlet.

10. refrigerator according to claim 9, wherein the shell further include:

Two side plates and a backboard are configured to define compressor bin jointly with the rear top plate, second bottom plate, described Compressor bin is located at the rear of the cooling chamber, and

The refrigerator further include: condenser, cooling fan and the compressor transversely set gradually in the compressor bin, Described in condenser be disposed in proximity to the side of the heat dissipation air inlet, the compressor is disposed in proximity to the heat radiation air outlet Side, the cooling fan is set between the condenser and the compressor.