CN115682550A

CN115682550A - Refrigerating and freezing device

Info

Publication number: CN115682550A
Application number: CN202110872585.6A
Authority: CN
Inventors: 刘煜森; 孙永升; 陶瑞涛; 蒋孝奎
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2023-02-03

Abstract

The present invention relates to a refrigerating and freezing device, comprising: the refrigerator comprises a box body, a front air inlet and a rear air inlet, wherein a storage compartment with a front opening and a cooling chamber adjacently positioned below the storage compartment are defined in the box body; the door body is connected with the box body and is used for opening and/or closing the forward opening; at least one evaporator disposed within the cooling chamber and configured to cool an airflow passing therethrough; and the air return baffle plate is arranged at the front side and the upper part of the front air return opening in a surrounding manner, forms a backward air return opening backward facing the storage room, and is communicated with the front air return opening and the storage room through the backward air return opening so that the storage room is communicated with the cooling room through the backward air return opening and the forward air return opening. The invention skillfully changes the return air inlet with the forward opening of the cooling chamber into the return air inlet with the backward opening by arranging the return air baffle plate to form the backward return air inlet communicated with the forward return air inlet, thereby being beneficial to preventing damp and hot air in the environment from entering the cooling chamber and avoiding abnormal frosting in the cooling chamber.

Description

Refrigerating and freezing device

Technical Field

The invention relates to the field of household appliances, in particular to a refrigerating and freezing device.

Background

The cooling chamber of a common cold storage and freezing device is usually positioned at the rear of the freezing chamber, the compressor bin is positioned at the rear lower part of the freezing chamber, and the freezing chamber needs to give way for the compressor bin, so that the special shape is presented, and the depth of the freezing chamber is limited.

In order to solve the problems, the refrigerator with the whole bottom of the cooling chamber is provided in the prior art, the freezing chamber is arranged below the freezing chamber, the occupation of the rear space of the freezing chamber is changed into the occupation of the lower space of the freezing chamber, so that the special-shaped space of the freezing chamber is relieved, and the operation of taking and placing articles by a user is facilitated. In such a refrigerator, an evaporator is horizontally or obliquely disposed in a cooling chamber, and a blower fan is disposed at a rear side of the evaporator. The air return opening of the cooling chamber is positioned in the front part of the box body and is opened forwards. When the user opened freezing door, although freezing fan received the triggering of the action of opening the door and the outage this moment, because inertia, freezing fan just can stall after a period of time, at this period of time of freezing fan outage to complete stall, the damp and hot air in the environment can get into the cooling chamber through the return air inlet, causes the cooling chamber in the unusual frosting.

Disclosure of Invention

It is an object of the present invention to overcome at least one of the disadvantages of the prior art and to provide a refrigeration and freezing apparatus which avoids abnormal frost formation in the cooling compartment by providing a return air baffle to redirect the flow of the return air stream.

A further object of the invention is to avoid the entry of impurities into the cooling chamber.

In order to achieve the above object, the present invention provides a refrigerating and freezing apparatus comprising:

the refrigerator comprises a box body, a front air inlet and a rear air inlet, wherein a storage compartment with a front opening and a cooling chamber adjacently positioned below the storage compartment are defined in the box body;

the door body is connected with the box body and is used for opening and/or closing the forward opening;

at least one evaporator disposed within the cooling chamber and configured to cool an airflow passing therethrough; and

and the air return baffle plate is arranged around the front side and the upper part of the forward air return opening and forms a backward air return opening which faces backwards to the storage chamber, and the backward air return opening is communicated with the forward air return opening and the storage chamber, so that the storage chamber is communicated with the cooling chamber through the backward air return opening and the forward air return opening in sequence.

Optionally, the return air baffle plate is provided with a first plate body which is positioned at the front side of the forward return air inlet and is arranged at an interval with the forward return air inlet, and a second plate body which extends backwards from the top of the first plate body into the storage compartment; and is

The second plate body and the bottom wall of the storage chamber are arranged at intervals so that the backward air return opening is formed between the extending tail end of the second plate body and the bottom wall of the storage chamber.

Optionally, the first plate body extends in a vertical direction, and the second plate body extends in a horizontal direction; and is

The top of the first plate body is higher than the bottom wall of the storage compartment.

Optionally, the width of the return air baffle in the transverse direction of the box body is equivalent to the width of the storage compartment in the transverse direction.

Optionally, the number of the evaporators is two, and the two evaporators are arranged in the cooling chamber side by side and at intervals along the transverse direction of the box body; and is

The refrigerating and freezing device further comprises a fan arranged in the cooling chamber, the fan is positioned between the two evaporators and is configured to controllably drive airflow to circularly flow between the storage chamber and the cooling chamber.

Optionally, each evaporator comprises a heat exchange tube for circulating refrigerant and a plurality of heat exchange fins arranged on the heat exchange tube in a penetrating way; and is

The plurality of heat exchange fins are arranged at intervals along the depth direction of the box body, and each heat exchange fin extends along the transverse direction of the box body.

Optionally, a wind guide channel is further formed in the cooling chamber, and the wind guide channel includes a transverse channel which is located behind the forward return air inlet and extends along the transverse direction of the box body, and two longitudinal channels which extend backwards from two ends of the transverse channel respectively;

the forward air return inlet is communicated with the transverse channel, and the two longitudinal channels are respectively communicated with the two evaporators.

Optionally, a plurality of air deflectors are arranged in each longitudinal channel, and the air deflectors extend in a bending manner from front to back in a direction close to the evaporator communicated with the air deflectors.

Optionally, the fan is horizontally disposed in the cooling chamber and includes a volute and an impeller disposed in the volute, and a thickness of the volute in a vertical direction is smaller than a thickness of each evaporator in the vertical direction;

the volute is placed on the bottom wall of the cooling chamber, the volute and the top wall of the cooling chamber are arranged at intervals so as to form an airflow flowing space above the volute, and the top of the volute is provided with an air suction opening; or the volute is supported at the upper part in the cooling chamber through a supporting structure, the volute and the bottom wall of the cooling chamber are arranged at intervals so as to form an airflow flowing space below the volute, and an air suction opening is formed in the bottom of the volute.

Optionally, the number of evaporators is one; and is

The refrigerating and freezing device further comprises a fan arranged in the cooling chamber, the fan is located behind the evaporator in the depth direction of the box body, and the fan is configured to controllably drive airflow to circularly flow between the storage chamber and the cooling chamber.

The refrigerating and freezing device is provided with a storage compartment and a cooling chamber adjacently positioned below the storage compartment, wherein the cooling chamber is communicated with the storage compartment through a forward air return opening positioned at the front side of the cooling chamber. Particularly, cold-stored refrigerating plant still includes the return air baffle, and the return air baffle encloses to establish the front side and the top of preceding return air inlet to form backward towards the backward return air inlet of storing compartment, backward return air inlet is linked together with preceding return air inlet, from this, preceding return air inlet is blocked by the return air baffle in the front-back direction and the communication path between the environmental space, even the door body is opened, the moist hot air in the environment can not get into preceding return air inlet yet. The invention forms a backward return air inlet communicated with the forward return air inlet by arranging the return air baffle plate, and skillfully changes the forward-opening return air inlet of the cooling chamber into a backward-opening return air inlet. Because the backward return air inlet is direct to communicate with the storage room, consequently, the indoor return air accessible of storage room backward return air inlet and preceding return air inlet get into the cooling chamber, and the damp and hot air in the environment can not get into the cooling chamber owing to being blockked by the return air baffle, has avoided the cooling chamber in unusual frosting.

Furthermore, as the forward air return inlet is shielded by the air return baffle, impurities in the environment cannot enter the cooling chamber through the forward air return inlet. And the backward return air inlet faces backward, which is equivalent to that the storage chamber is communicated with the cooling chamber in a zigzag manner, so that articles or impurities in the storage chamber cannot easily fall into the cooling chamber, and the impurities in the cooling chamber are effectively prevented from entering the cooling chamber.

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 structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

figures 2 and 3 are schematic cross-sectional views, taken along different cross-sectional planes, respectively, of a refrigerated freezing apparatus according to one embodiment of the present invention;

FIG. 4 is an enlarged view of the bottom structure of FIG. 3;

FIG. 5 is an exploded schematic view of the structure shown in FIG. 4;

fig. 6 is a schematic cross-sectional view of a refrigerated freezer according to another embodiment of the invention;

fig. 7 is a schematic block diagram of a refrigeration freezer according to one embodiment of the present invention with the duct cover removed;

fig. 8 is a schematic cross-sectional view of a refrigerated freezer according to one embodiment of the invention taken along a further cross-sectional plane.

Detailed Description

The invention provides a refrigeration and freezing device, wherein a schematic structure diagram of the refrigeration and freezing device is shown in figure 1 according to one embodiment of the invention, schematic section diagrams of the refrigeration and freezing device are shown in figures 2 and 3 respectively, which are taken along different section planes, the figure 4 is an enlarged view of the bottom structure in figure 3, and the figure 5 is an exploded schematic diagram of the structure in figure 4. Referring to fig. 1 to 5, the refrigerating and freezing apparatus 1 of the present invention includes a cabinet 10, a door, and at least one evaporator 20.

The box body 10 defines a storage compartment 11 with a forward opening 111 and a cooling compartment 12 adjacently located below the storage compartment 11, and a forward return air inlet 15 is opened at the front side of the cooling compartment 12, that is, the forward return air inlet 15 faces forward. The door is connected to the body 10 for opening and/or closing the forward opening 111 of the storage compartment 11. Specifically, the door may be pivotally connected to the cabinet 10, and may be connected to the cabinet 10 by a push-pull method or other suitable methods. At least one evaporator 20 is disposed within the cooling chamber 12 and is configured to cool an airflow passing therethrough to produce a cooled airflow.

In particular, the refrigerating and freezing device 1 further includes a return air baffle 80, the return air baffle 80 is enclosed in front of and above the forward return air inlet 15 and forms a backward return air inlet 112 facing backward toward the storage compartment 11, and the backward return air inlet 112 communicates the forward return air inlet 15 with the storage compartment 11, so that the storage compartment 11 communicates with the cooling compartment 12 sequentially through the backward return air inlet 112 and the forward return air inlet 15. That is, the communication path between the forward return air inlet 15 and the ambient space in the front-rear direction is blocked by the return air baffle 80, and even if the door body is opened, hot and humid air in the environment does not enter the forward return air inlet 15.

The invention skillfully changes the return air inlet of the cooling chamber 12 which is opened forward into the return air inlet which is opened backward by arranging the return air baffle 80 to form the backward return air inlet 112 which is communicated with the forward return air inlet 15. Because the backward return air inlet 112 is directly communicated with the storage compartment 11, the return air in the storage compartment 11 can enter the cooling compartment 12 through the backward return air inlet 112 and the forward return air inlet 15, and the damp and hot air in the environment can not enter the cooling compartment 12 because of being blocked by the return air baffle 80, thereby avoiding the abnormal frosting phenomenon in the cooling compartment 12.

Further, since the forward return air inlet 15 is shielded by the return air baffle 80, impurities in the environment cannot enter the cooling chamber 12 through the forward return air inlet 15, and structures such as tightly arranged grids and the like which obstruct the flow of air flow do not need to be arranged at the forward return air inlet 15. Furthermore, the backward air return port 112 faces backward, which means that the storage chamber 11 is communicated with the cooling chamber 12 in a zigzag manner, so that articles or impurities in the storage chamber 11 cannot easily fall into the cooling chamber 12, and the entering of impurities into the cooling chamber 12 is effectively avoided.

In particular, the storage compartment 11 and the cooling compartment 12 may be separated by a duct cover 14. The duct cover 14 includes, in addition to the laterally extending plate 141, a flange 142 extending downward from a front side edge of the plate 141. The forward return air opening 15 is opened in the flange 142.

In some embodiments, the return air baffle 80 has a first plate 81 located forward of and spaced from the forward return air opening 15 and a second plate 82 extending rearwardly from the top of the first plate 81 into the storage compartment 11. The second plate 82 is spaced apart from the bottom wall of the storage compartment 11 (i.e., the top wall of the air duct cover 14) to form a rear return air inlet 112 between the extended end of the second plate 82 and the bottom wall of the storage compartment 11. That is, the second plate 82 is higher than the bottom wall of the storage compartment 11 by a certain distance so as to form a rear return air inlet 112 with a certain size, and the rear return air inlet 112 is a strip-shaped air inlet extending along the transverse direction. The first plate 81 and the forward air return opening 15 are arranged at an interval, so that a return air flowing space is formed between the first plate 81 and the plate where the forward air return opening 15 is located, and the air flow flowing from the backward air return opening 112 to the forward air return opening 15 is buffered, so that the air flow can be conveniently reversed.

Further, the first plate 81 may extend in a vertical direction, the second plate 82 may extend in a horizontal direction, and the top of the first plate 81 is higher than the bottom wall of the storage compartment 11, so that an air duct with a small number of bending times may be formed between the forward air return opening 15 and the backward air return opening 112, due to the flow of the return air.

In some embodiments, the width of the return air baffle 80 in the lateral direction of the housing 10 corresponds to the width of the storage compartment 11 in the lateral direction. On one hand, the front side of the forward air return opening 15 can be completely sealed by the air return baffle 80, so that the structural integrity and the aesthetic degree of the box body 10 are improved; on the other hand, the width of the backward return air inlet 112 can be maximized, which is favorable for the return air in the storage compartment 11 to flow to the forward return air inlet 15.

Fig. 6 is a schematic cross-sectional view of a refrigerated freezer according to another embodiment of the invention. In some embodiments, the number of the evaporators 20 may be one, and the refrigeration and freezing device 1 further includes a fan 30 disposed in the cooling chamber 12, the fan 30 being located behind the evaporators 20 in the depth direction of the box body 10 and configured to controllably drive the air flow to circulate between the storage compartment 11 and the cooling chamber 12. Specifically, the evaporator 20 is shaped like a flat rectangular parallelepiped as a whole, so as to fully utilize the space of the cooling chamber 12 in the transverse direction, reduce the space occupied by the evaporator 20 in the vertical direction, and enlarge the size of the storage compartment 11 in the vertical direction. Moreover, since the evaporator 20 and the cooling chamber 12 are not arranged on the back of the cabinet 10, the space at the rear of the storage compartment 11 is not occupied, and the size of the storage compartment 11 in the front-rear direction is enlarged.

Further, in order to ensure that the fan 30 can smoothly suck air, a certain air flow flowing space must be reserved at the air suction opening of the fan 30. For this purpose, the fan 30 may be obliquely disposed within the cooling chamber 12.

Further, the fan 30 may be a centrifugal fan, a cross-flow fan, or an axial flow fan.

The applicant has recognized that, in the above embodiment in which the fan 30 is disposed behind the evaporator 20, in order to ensure that the fan 30 can normally suck air, the duct cover 14 between the cooling chamber 12 and the storage compartment 11 is necessarily inclined, and the inclination angle is relatively large, so that the height of the rear portion of the cooling chamber 12 is relatively high, the thickness of the box body 10 is relatively thick, the size of the space of the storage compartment 11 is reduced, and an inclined surface with a relatively large inclination angle is necessarily present in the rear portion of the storage compartment 11, and an inclined surface with a relatively severe inclination is also present in the rear portion of the drawer used in cooperation therewith, which is not beneficial to the storage experience of the user.

To this end, the present application also proposes a more preferred embodiment, such as the one shown in fig. 2. In these embodiments, the number of the evaporators 20 is two, two evaporators 20 are arranged in the cooling chamber 12 side by side and at intervals in the lateral direction of the cabinet 10, and the fan 30 is located between the two evaporators 20.

According to the invention, one evaporator with a larger volume in the cooling chamber is replaced by two evaporators with a relatively smaller volume, on the premise of ensuring that the whole refrigerating capacity is not reduced, a middle space is formed between the two evaporators 20, the fan 30 is placed by utilizing the middle space, and the fan 30 is prevented from occupying the rear space of the cooling chamber 12, so that the rear part of the air duct cover plate 14 between the cooling chamber 12 and the storage chamber 11 adjacent to the upper part of the cooling chamber 12 does not need to be provided with a larger inclination angle due to avoiding an air suction opening of the fan 30, the bottom of the storage chamber 11 adjacent to the upper part of the cooling chamber 12 is smoother, and the influence of a special-shaped space formed in the storage chamber 11 on the use experience of a user is avoided. When the drawer 13 is arranged in the storage compartment 11, the rear part of the drawer 13 is relatively flat, the storage space is larger, and the sensory experience of a user is not influenced.

Therefore, the preferred embodiment of the invention not only simply replaces the number of the evaporators, but also reasonably arranges the positions of the two evaporators and the fan after changing one evaporator into two evaporators so as to solve the problem that the storage space of the storage chamber and the use experience of a user are influenced by a larger inclination angle of the rear part of the air duct cover plate in the prior art, and obtain unexpected technical effects.

Fig. 7 is a schematic block diagram of a refrigeration freezer according to one embodiment of the present invention with the duct cover removed. In some embodiments, each of the evaporators 20 includes a heat exchange tube 21 for circulating a refrigerant therethrough and a plurality of heat exchange fins 22 provided across the heat exchange tube 21. The plurality of heat exchange fins 22 are arranged at intervals along the depth direction of the tank 10, and each heat exchange fin 22 extends in the transverse direction of the tank 10. Therefore, the gaps between two adjacent heat exchange fins 22 extend transversely, return air flow can flow to the fan 30 along the gaps between the heat exchange fins 22 conveniently, the flow resistance of the air flow is reduced, and the heat exchange effect between the air flow and the heat exchange fins 22 is improved.

Figure 8 is a schematic cross-sectional view of a refrigerated freezing apparatus according to an embodiment of the present invention taken along a further cross-sectional plane. Further, in the embodiment having two evaporators 20, since the forward return air opening 15 is located on the front side of the cooling compartment 12, however, the two evaporators 20 are located on both lateral sides of the cooling compartment 12, the flow of the return air entering the cooling compartment 12 from the forward return air opening 15 is not likely to directly flow to the two evaporators 20. To this end, the cooling chamber 12 is further formed therein with an air guide passage including a transverse passage 121 at the rear side of the forward return air opening 15 and extending in the transverse direction of the casing 10 and two longitudinal passages 122 extending rearward from both ends of the transverse passage 121, respectively. The forward return air opening 15 communicates with the transverse passage 121, and the two longitudinal passages 122 communicate with the two evaporators 20, respectively. Therefore, the airflow flowing in from the forward air return opening 15 can flow to the transverse channel 121 firstly and then is divided into two longitudinal channels 122 through the two transverse channels 121, and the return air flow in the two longitudinal channels 122 flows to the two evaporators 20 respectively, which is beneficial for the return air flow to uniformly flow through the two evaporators 20, thereby effectively and uniformly exchanging heat with the two evaporators 20.

Specifically, a front baffle 161 is provided in the cooling chamber 12 in front of the two evaporators 20, and the front baffle 161 may have a function of thermal insulation. The front baffle 161 is spaced from the flange 142 of the duct cover 14 to form the transverse passage 121. The two evaporators 20 are spaced from the two lateral side walls of the cooling chamber 12 to form longitudinally extending longitudinal channels 122. The front baffle 161 is spaced at both lateral ends thereof from both lateral side walls of the cooling chamber 12, thereby allowing the lateral passages 121 to communicate with the two longitudinal passages 122.

Further, each longitudinal channel 122 is provided with a plurality of air deflectors 123 therein, and the air deflectors 123 extend in a bending manner from front to back toward the evaporator 20 communicated therewith, so as to uniformly guide the air flow in the longitudinal channel 122 to the evaporator 20, thereby avoiding the phenomenon of serious imbalance of air flow in the front area and the rear area of the evaporator 20, and improving the heat exchange effect between the air flow and the evaporator 20.

In an embodiment having two evaporators 20, the fan 30 may be disposed horizontally in the cooling chamber 12, and includes a volute 31 and an impeller 32 disposed in the volute 31, the thickness of the volute 31 in the vertical direction being smaller than the thickness of each evaporator 20 in the vertical direction. That is, the middle space formed between the two evaporators 20 can provide the fan 30 with a relief space at an upper portion thereof or a lower portion thereof to allow the suction opening of the fan 30 to be formed at a top or bottom portion thereof. The suction opening formed at the top or bottom of the fan 30 is located between the two evaporators 20 and is not directed toward any one of the evaporators 20, and is substantially the same as the path between the two evaporators 20, thereby uniformly receiving the air flows from the two evaporators 20 and thus promoting the air flows to uniformly flow through the two evaporators 20.

Further, the volute 31 may rest on the bottom wall of the cooling chamber 12, that is, the volute 31 is directly supported by the bottom wall of the cooling chamber 12. The scroll casing 31 is provided spaced from the top wall of the cooling chamber 12, whereby an airflow flowing space can be formed above the scroll casing 31. The top of the volute 31 is opened with an air suction opening 311, so as to ensure that the air flow passing through the two evaporators 20 smoothly enters the air suction opening 311. Preferably, the height of the air suction opening 311 of the fan 30 in the vertical direction is set to be lower than the middle or middle of the evaporator 20 in the vertical direction, so as to form a sufficiently large air flow flowing space above the air suction opening 311, reduce air flow flowing resistance, and facilitate more air flow to be more smoothly sucked into the air suction opening 311.

Further, in other embodiments, the volute casing 31 is also supported at an upper portion within the cooling chamber 12 by a support structure, and the volute casing 31 is spaced from a bottom wall of the cooling chamber 12, thereby forming an air flow space below the volute casing 31. The bottom of the volute 31 is provided with an air suction opening 311, so as to ensure that the air flow passing through the two evaporators 20 smoothly enters the air suction opening 311. In particular, the support structure may include support posts extending upward perpendicular to the bottom wall of the cooling chamber 12, or support ribs located on the rear side of the cooling chamber 12. Preferably, the height of the air suction opening 311 in the vertical direction is set to be above the middle or middle of the evaporator 20 in the vertical direction, so as to form a sufficiently large air flow flowing space below the air suction opening 311, reduce the air flow flowing resistance, and thus facilitate more air flow to be more smoothly sucked into the air suction opening 311.

Therefore, the air suction opening 311 of the fan 30 is arranged at the top or the bottom of the volute casing 31, so that the fan 30 can smoothly suck air by using the thickness difference between the volute casing 31 and the evaporator 20, the air duct cover plate 14 does not need to be lifted or inclined, and the space size of the storage compartment 11 is prevented from being reduced.

In some embodiments, the evaporator 20 has a frontmost heat exchange fin at the frontmost side in the depth direction of the tank 10 and a rearmost heat exchange fin at the rearmost side in the depth direction of the tank 10. The fan 30 includes a volute 31 and an impeller 32 disposed in the volute 31, an air suction opening 311 is disposed at the top or bottom of the volute 31, and the air suction opening 311 is located between the foremost heat exchange fin and the rearmost heat exchange fin in the depth direction of the box 10. Therefore, the negative pressure generated by the fan 30 during operation can act on the front and rear regions of the two evaporators 20 relatively uniformly, so that the return air flow can be promoted to flow through the heat exchange fins at the front parts of the two evaporators and the heat exchange fins at the rear parts of the two evaporators uniformly, and the uniformity of return air heat exchange is improved.

Preferably, the air suction opening 311 is located at the middle of the evaporator 20 in the depth direction of the case 10, so that the return air flows more uniformly through the heat exchange fins at the front of the two evaporators and the heat exchange fins at the rear of the two evaporators, and the heat exchange effect between the return air and the evaporator 20 is optimal.

In some embodiments, at least one other storage compartment 17 is also defined within the carton 10. The at least one further storage compartment 17 is located above the storage compartment 11. If the overall volume of the refrigerating and freezing device 1 is not very large, the storage compartment 11 and all further storage compartments 17 can be provided with cooling energy by the evaporator 20 arranged in the cooling compartment 12, in which case the fan 30 can cause an air flow to circulate between the respective storage compartment and the cooling compartment 12. If the whole volume of the refrigerating and freezing device 1 is large and the required cooling capacity is large, the evaporator 20 arranged in the cooling chamber 11 can only provide cooling capacity for the storage chamber 11, and other storage chambers 17 can refrigerate through evaporators arranged at other positions. At this time, the fan 30 drives only the air flow to circulate between the cooling compartment 11 and the storage compartment 11.

Further, the storage compartment 11 may be a freezing compartment, which may be one storage space, or two storage spaces separated by a middle partition. The other storage compartments 17 may be a refrigerating compartment, a temperature-changing compartment, etc., and are not described herein.

In some embodiments, an air supply duct 18 is defined in the box 10, and an air outlet of the fan 30 is connected to the air supply duct 18 to deliver cooling air to the storage compartment 11 through the air supply duct 18, or to deliver cooling air to the storage compartment 11 and other storage compartments 17 through the air supply duct 18. Specifically, the air supply duct 18 may be located at a rear portion of the cabinet, so as to uniformly supply air to the storage compartment 11 and/or the other storage compartments 17.

It will be appreciated by those skilled in the art that the refrigerated freezer 1 to which the present invention relates includes, but is not limited to, a refrigerator, and it may also include an ice chest, a freezer, a refrigerated cabinet, and other devices having a function similar to that of refrigerating or freezing storage.

It should also be understood by those skilled in the art that the terms "upper", "lower", "front", "back", "top", "bottom", and the like used in the embodiments of the present invention are used with reference to the actual usage of the refrigeration and freezing apparatus 1, and these terms are only used for convenience of describing and understanding the technical solution of the present invention, and do not indicate or imply that the apparatus referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly 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 refrigeration freezer apparatus, comprising:

the door body is connected to the box body and used for opening and/or closing the forward opening;

2. A refrigerator-freezer according to claim 1,

the air return baffle is provided with a first plate body which is positioned at the front side of the forward air return inlet and is arranged at an interval with the forward air return inlet, and a second plate body which extends backwards from the top of the first plate body to the inside of the storage room; and is provided with

3. A refrigerator-freezer according to claim 2,

the first plate body extends along the vertical direction, and the second plate body extends along the horizontal direction; and is provided with

4. A refrigerator-freezer according to claim 1,

the width of the return air baffle plate in the transverse direction of the box body is equivalent to that of the storage compartment in the transverse direction.

5. A refrigerator-freezer according to claim 1,

the number of the evaporators is two, and the two evaporators are arranged in the cooling chamber side by side along the transverse direction of the box body at intervals; and is

The refrigerating and freezing device further comprises a fan arranged in the cooling chamber, wherein the fan is positioned between the two evaporators and is configured to controllably drive airflow to circularly flow between the storage compartment and the cooling chamber.

6. A refrigerator-freezer according to claim 5,

each evaporator comprises a heat exchange tube for circulating refrigerant and a plurality of heat exchange fins arranged on the heat exchange tube in a penetrating way; and is

7. A refrigerator-freezer according to claim 6,

a wind guide channel is further formed in the cooling chamber, and comprises a transverse channel which is positioned at the rear side of the forward air return inlet and extends along the transverse direction of the box body, and two longitudinal channels which respectively extend backwards from two ends of the transverse channel;

8. A refrigerator-freezer according to claim 7,

and a plurality of air deflectors are arranged in each longitudinal channel, and the air deflectors are bent and extended from front to back towards the direction close to the evaporator communicated with the air deflectors.

9. A refrigerator-freezer according to claim 5,

the fan is horizontally arranged in the cooling chamber and comprises a volute and an impeller arranged in the volute, and the thickness of the volute in the vertical direction is smaller than that of each evaporator in the vertical direction;

10. A refrigerator-freezer according to claim 1,

the number of the evaporators is one; and is provided with

The refrigerating and freezing device further comprises a fan arranged in the cooling chamber, the fan is located behind the evaporator in the depth direction of the box body and is configured to controllably drive airflow to circularly flow between the storage compartment and the cooling chamber.