CN219037259U - Refrigerating and freezing device - Google Patents

Abstract

The present utility model relates to a refrigerating and freezing device, comprising: a case defining a freezing compartment, a refrigerating compartment, a small temperature changing compartment, and a full temperature changing compartment for storing articles therein, and first and second cooling compartments for cooling an air flow passing therethrough; the refrigerating compartment is positioned at a first side in the transverse direction of the box body, and the refrigerating compartment, the small temperature changing compartment and the full temperature changing compartment are sequentially arranged at a second side in the transverse direction of the box body from top to bottom; the refrigerating compartment is provided with cooling capacity by a first air flow cooled by the first cooling compartment, and the refrigerating compartment, the small temperature changing compartment and the full temperature changing compartment are provided with cooling capacity by a second air flow cooled by the second cooling compartment; and the return air flows in the refrigerating room and the small temperature changing room return to the second cooling room through the same return air pipe. Because the refrigerating compartment and the small temperature-changing compartment which are positioned above return air through the same return air pipe, the quantity of the return air pipes and the space occupied by the return air pipes are reduced, the process is simplified, and the cost is reduced.

Description

Refrigerating and freezing device

Technical Field

The utility model relates to a refrigeration technology, in particular to a refrigeration device.

Background

In daily life, people mainly use refrigerators to store and keep articles fresh. The refrigerators commonly found in the prior art mainly include a conventional two-door refrigerator, a T-type refrigerator, a french refrigerator, a side-by-side refrigerator, and the like. The number of storage compartments of the existing refrigerator is limited, so that various types of food materials cannot be accurately stored in a partition mode, and various use requirements of users cannot be met. Therefore, in order to meet the accurate partition storage requirement of users, the applicant specially designs a refrigerator with a plurality of compartments such as refrigeration, freezing, small temperature change, full temperature change and the like. The refrigerating room and the small temperature-changing room are required to be provided with return air pipelines independently, so that the space occupation, the cost and the working hours are increased, the user experience and the manufacturing process are not facilitated, and the performance reduction is caused by the fact that the space occupation of the evaporator is sacrificed.

Disclosure of Invention

It is an object of the present utility model to overcome at least one of the drawbacks of the prior art by providing a refrigeration and freezer having multiple compartments with a return air duct that occupies a small space and is relatively inexpensive.

It is another object of the present utility model to improve the layout rationality of each compartment and the cooling efficiency of each compartment.

A further object of the present utility model is to avoid condensation and frost phenomena in small temperature change compartments.

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

a case defining a freezing compartment, a refrigerating compartment, a small temperature changing compartment, and a full temperature changing compartment for storing articles therein, and first and second cooling compartments for cooling an air flow passing therethrough;

the refrigerating compartment is positioned at a first side in the transverse direction of the box body, and the refrigerating compartment, the small temperature changing compartment and the full temperature changing compartment are sequentially arranged from top to bottom at a second side in the transverse direction of the box body;

the refrigeration compartment is provided with cold by a first air flow cooled by the first cooling compartment, and the refrigeration compartment, the small temperature change compartment and the full temperature change compartment are provided with cold by a second air flow cooled by the second cooling compartment; and is also provided with

And the return air flows in the refrigerating room and the small temperature changing room return to the second cooling room through the same return air pipe.

Optionally, the refrigerating compartment is provided with a refrigerating air return port communicated with the air return pipe, the small temperature-changing compartment is provided with a small temperature-changing air return port communicated with the air return pipe, and the small temperature-changing air return port is positioned at the downstream side of the refrigerating air return port in the airflow flowing direction in the air return pipe; and is also provided with

The small temperature-changing air return port is internally provided with a rotatable wind shield which is configured to rotate to an opening state for opening the small temperature-changing air return port under the flow promotion effect of return air flow in the small temperature-changing chamber when the small temperature-changing chamber is refrigerated and to rotate to a closing state for shielding the small temperature-changing air return port under the self gravity effect when the small temperature-changing chamber is not refrigerated.

Optionally, the first cooling chamber is located below the freezing chamber, and the second cooling chamber is located below the full temperature changing chamber; and is also provided with

The return air flow in the freezing room returns to the first cooling room through a first return air inlet positioned at the front side of the bottom of the freezing room, and the return air flow in the full-temperature room returns to the second cooling room through a second return air inlet positioned at the front side of the bottom of the full-temperature room.

Optionally, the box body comprises a liner part used for forming the inside of the box body, a box shell used for forming the outside of the box body, and a foaming heat-insulating layer positioned between the liner part and the box shell; wherein the method comprises the steps of

The return air pipe is arranged in the foaming heat preservation layer.

Optionally, the return air pipe comprises a first pipe section vertically arranged at the rear side of the liner part and a second pipe section extending forwards from the bottom of the first pipe section to the front part of the second cooling chamber; wherein the method comprises the steps of

The bottom rear side of the refrigerating compartment is provided with a refrigerating air return port, the bottom rear side of the small temperature changing compartment is provided with a small temperature changing air return port, and the refrigerating air return port and the small temperature changing air return port are communicated with the first pipe section.

Optionally, a containing space which is recessed inwards and transversely is formed on the outer side of the bottom of the inner container part and is adjacent to the transverse side wall of the second side of the box body transversely, and the rear end of the containing space is open; and is also provided with

The first pipe section, the refrigerating air return port and the small temperature-changing air return port are adjacent to the transverse side wall, and the second pipe section extends into the accommodating space from the rear side of the accommodating space and extends forwards in the accommodating space.

Optionally, a first supporting table is formed on the inner side of the inner container part corresponding to the lateral side part of the accommodating space, and an air flow outlet communicated with the second cooling chamber is formed on the lateral side wall of the first supporting table; and is also provided with

The tail end of the second pipe section extends to the airflow outlet and is in airtight connection with the airflow outlet.

Optionally, the lateral side wall of the first supporting platform is provided with a longitudinal wall surface extending from back to front and an inclined wall surface extending obliquely from back to front towards the lateral outer side from the front end of the longitudinal wall surface; and is also provided with

The air flow outlet is arranged on the inclined wall surface.

Optionally, a second evaporator arranged transversely is arranged in the second cooling chamber, and the airflow outlet is more forward than the front end of the second evaporator.

Optionally, the refrigeration and freezing device further comprises:

the variable temperature evaporator cover plate is arranged between the full variable temperature chamber and the second cooling chamber and used for separating the full variable temperature chamber from the second cooling chamber; and is also provided with

The temperature change evaporator cover plate comprises a rear section extending from back to front and a front section extending downwards from the front end of the rear section, wherein the rear section is lapped on the first supporting table, and the front section is positioned on the front side of the airflow outlet so as to cover the airflow outlet.

Optionally, the inner container part comprises a freezing inner container for defining the freezing compartment, a refrigerating inner container for defining the refrigerating compartment, and a temperature changing inner container for defining the small temperature changing compartment and the full temperature changing compartment;

the air return pipe extends downwards from the rear side of the bottom of the refrigeration liner to the rear side of the temperature changing liner, and bends and extends forwards from the bottom of the temperature changing liner.

The refrigerating and freezing device is provided with the refrigerating compartment positioned at the first side of the transverse direction of the box body, the refrigerating compartment positioned at the second side of the transverse direction of the box body, the small temperature changing compartment and the refrigerating compartment, and the temperature of each storage compartment can be independently set and adjusted, so that a user can store different types of food materials accurately in a partitioning manner. The different arrangement positions of the storage compartments enable the storage compartments to have storage spaces with different sizes, so that users can flexibly store the storage compartments in different areas according to actual demands. And the refrigerating compartment and the small temperature-changing compartment which are positioned above return air through the same return air pipe, so that the number of the return air pipes and the space occupied by the return air pipes are reduced, the process is simplified, and the cost is reduced.

Meanwhile, the first cooling chamber is used for independently providing cold energy for the refrigerating compartment with larger storage space, the second cooling chamber is used for providing cold energy for the refrigerating compartment with smaller storage space, the small temperature changing compartment and the full temperature changing compartment, on one hand, the problems of poor refrigerating effect and low refrigerating efficiency caused by the fact that the existing single-system refrigerator provides cold energy for a plurality of storage compartments by using a single evaporator are solved, on the other hand, the cold energy supply is configured according to the size of the storage space, balanced distribution of the cold energy is ensured, and the design is more reasonable.

Further, the applicant has appreciated that when the small temperature change compartment is provided with a freeze gear, the temperature therein is lower and the temperature of the return air flow flowing from the small temperature change compartment into the return air duct is lower. However, the temperature in the refrigerated compartment is relatively high and the temperature of the return air flow from the refrigerated compartment into the return air duct is somewhat high. When two return air flows with larger temperature difference flow through the return air pipe, cold and hot alternation phenomenon is generated, and condensation and even frosting problems are easily generated in the return air pipe. Therefore, the rotatable wind shielding plate is further arranged in the small temperature-changing air return opening, when the small temperature-changing chamber is refrigerated, the return air flow in the small temperature-changing chamber needs to flow into the return air pipe, and the wind shielding plate is driven to rotate to an open state under the flow promotion effect of the return air flow so as to allow the return air flow to flow into the return air pipe, and normal return air of the small temperature-changing chamber is realized; when the small temperature-changing chamber does not refrigerate, no return air flow in the small temperature-changing chamber flows into the return air pipe, namely no return air flow has a promotion effect on the wind shield, and at the moment, the wind shield rotates to a closed state under the action of self gravity so as to shield the small temperature-changing air return port, the small temperature-changing chamber forms a completely closed environment, and the problem of condensation or icing caused by air flowing between the refrigerating chamber and the small temperature-changing chamber is avoided. And even when the refrigerating compartment is refrigerated, the small temperature-changing air return port can not generate negative pressure, so that the problem that the outdoor air is continuously sucked from the door seal to generate frost or ice due to the fact that the negative pressure generated at the small temperature-changing air return port is large when the refrigerating compartment is refrigerated is avoided.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a schematic block diagram of a refrigeration and freezer according to one embodiment of the utility model;

FIG. 2 is a schematic structural exploded view of a refrigeration and freezer according to one embodiment of the utility model;

FIG. 3 is a schematic cross-sectional view taken along section line A-A in FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along section line B-B in FIG. 1;

FIG. 5 is a schematic view showing a part of a refrigerating and freezing apparatus according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a portion of a refrigeration and chiller apparatus in another orientation according to one embodiment of the present utility model;

fig. 7 is a schematic structural view of a return air duct according to one embodiment of the present utility model.

Detailed Description

The present utility model provides a refrigerating and freezing apparatus, fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present utility model, fig. 2 is a schematic structural exploded view of a refrigerating and freezing apparatus according to an embodiment of the present utility model, fig. 3 is a schematic sectional view taken along a section line A-A in fig. 1, and fig. 4 is a schematic sectional view taken along a section line B-B in fig. 1. Referring to fig. 1 to 4, a refrigerating and freezing apparatus 1 of the present utility model includes a cabinet 10. The cabinet 10 defines therein a freezing compartment 11, a refrigerating compartment 12, a small temperature changing compartment 13 and a full temperature changing compartment 14 for storing articles, and a first cooling compartment 151 and a second cooling compartment 152 for cooling an air flow passing therethrough.

Specifically, the freezer compartment 11 may have a refrigerated storage environment in which the temperature may be generally set between-25 to-18 ℃. The refrigerated compartment 12 may have a refrigerated storage environment in which the temperature may be generally set between 0 and 8 ℃. The small temperature change compartment 13 and the full temperature change compartment 14 may optionally have a refrigerated storage environment or a refrigerated storage environment. The temperature in the small temperature change chamber 13 and the full temperature change chamber 14 can be set to be generally between-25 ℃ and 8 ℃, that is, the small temperature change chamber 13 and the full temperature change chamber 14 can be set to be in a refrigerating state or a freezing state.

Further, the refrigerating compartment 11 is located at a first side in the lateral direction of the cabinet 10, and the refrigerating compartment 12, the small temperature changing compartment 13, and the full temperature changing compartment 14 are arranged in this order from top to bottom at a second side in the lateral direction of the cabinet 10.

The utility model divides the internal space of the box body 10 into four storage compartments with different temperature ranges, and the temperature of each storage compartment can be independently set and regulated, so that users can store different types of food materials accurately in a partitioned mode. The different arrangement positions of the storage compartments enable the storage compartments to have storage spaces with different sizes, so that users can flexibly store the storage compartments in different areas according to actual demands.

Further, the freezing compartment 11 is cooled by the first air flow cooled by the first cooling compartment 151, and the refrigerating compartment 12, the small variable temperature compartment 13 and the full variable temperature compartment 14 are cooled by the second air flow cooled by the second cooling compartment 152. The first air flow and the second air flow are cooling air flows with lower temperature after heat exchange of the evaporator.

The freezing compartment 11 is independently arranged on the first side of the box body 10, so that the storage space is larger, the temperature requirement is lower, and the cooling capacity requirement is larger, and therefore, the refrigerating efficiency and the refrigerating effect of the freezing compartment 11 can be ensured by independently cooling the first air flow cooled by the first cooling chamber 151. The refrigerating compartment 12, the small temperature-changing compartment 13 and the full temperature-changing compartment 14 are arranged on the second side of the box body 10 up and down, the temperature requirement is relatively high, the storage space of a single compartment is limited, and the cooling capacity requirement of the single compartment is not very large, so that the three compartments can be intensively cooled by utilizing the second air flow cooled by one second cooling compartment 152, thereby not only meeting the temperature requirement of each compartment, but also reducing the number of the cooling compartments as much as possible.

The utility model uses the first cooling chamber 151 to independently provide cold for the refrigerating compartment 11 with larger storage space, uses the second cooling chamber 152 to provide cold for the refrigerating compartment 12, the small temperature changing compartment 13 and the full temperature changing compartment 14 with relatively smaller storage space, solves the problems of poor refrigerating effect and low refrigerating efficiency caused by the fact that the existing single-system refrigerator uses a single evaporator to provide cold for a plurality of storage compartments, and on the other hand, the utility model configures cold supply according to the size of the storage space, ensures balanced distribution of cold and has more reasonable design.

In particular, reference is made to the partial schematic structural view of a refrigeration and freezing apparatus according to one embodiment of the present utility model shown in fig. 5 and the partial schematic structural view of a refrigeration and freezing apparatus according to one embodiment of the present utility model shown in fig. 6 in another orientation. The return air flows in the refrigerating compartment 12 and the small temperature change compartment 13 are returned to the second cooling compartment 152 through the same return air duct 20. That is, the refrigerating compartment 12 and the small temperature changing compartment 13 located above return air through the same return air pipe 20, so that the number of the return air pipes 20 and the space occupied by the return air pipes 20 are reduced, the process is simplified, and the cost is reduced.

In some embodiments, the variable temperature interval of the full variable temperature compartment 14 is wider than the variable temperature interval of the small variable temperature compartment 13. Specifically, the temperature-adjustable range of the full temperature-variable compartment 14 may be, for example, -25 to 8 ℃, and the temperature-adjustable range of the small temperature-variable compartment 13 may be, for example, -5 to 8 ℃. That is, the full temperature change compartment 14 can change from cold storage to freezing, and the small temperature change compartment 13 can change from cold storage to soft freezing. The small temperature change compartment 13 requires less cooling than the full temperature change compartment 14.

Because the adjustable temperature interval of the full-variable temperature chamber 14 is wider than the adjustable temperature interval of the small-variable temperature chamber 13, namely the settable temperature of the full-variable temperature chamber 14 is lower, and more cold is required. Therefore, the refrigerating compartment 12, the small variable temperature compartment 13 and the full variable temperature compartment 14 are arranged on the second side of the box body 10 from top to bottom in sequence, namely, the refrigerating compartment 12, the small variable temperature compartment 13 and the full variable temperature compartment 14 are closer to the second cooling compartment 152, so that gradually increased cold energy is conveniently conveyed to the refrigerating compartment 12, the small variable temperature compartment 13 and the full variable temperature compartment 14, the accurate control of the temperature of each compartment is realized, and the compartment layout is more reasonable.

In some embodiments, the refrigerated compartment 12 has a refrigerated return air inlet 121 in communication with the return air duct 20 and the small temperature swing compartment 13 has a small temperature swing return air inlet 131 in communication with the return air duct 20, the small temperature swing return air inlet 131 being located downstream of the refrigerated return air inlet 121 in the direction of airflow within the return air duct 20. That is, the return air flow in the refrigerating compartment 12 flows through the position of the return air duct 20 connected to the small temperature change return air inlet 131, so that the return air flow in the refrigerating compartment 12 may enter the small temperature change compartment 13 through the small temperature change return air inlet 131, thereby causing temperature fluctuation in the small temperature change compartment 13. When the set temperature in the small temperature change chamber 13 is low, the return air flow with high temperature flowing from the refrigerating chamber 12 meets the environment with low temperature in the small temperature change chamber 13, and condensation or icing problems are easily formed in the small temperature change chamber 13.

The applicant has also realized that when the small temperature change compartment 13 is provided with a freeze gear, the temperature therein is low and the temperature of the return air flow flowing from the small temperature change compartment 13 into the return air duct 20 is low. However, the temperature within the refrigerated compartment 12 is relatively high and the temperature of the return air stream flowing from the refrigerated compartment 12 into the return air duct 20 is somewhat high. When two compartments are simultaneously cooled, two return air flows with larger temperature difference flow through the return air pipe 20 simultaneously, and cold and hot alternation phenomenon can be generated in the return air pipe 20, so that condensation and even frosting problems are generated in the return air pipe 20.

For this purpose, reference is made to a schematic block diagram of a return air duct according to an embodiment of the utility model shown in fig. 7. In some embodiments, a rotatable wind shield 21 is disposed within the small temperature swing return air inlet 131, the wind shield 21 being configured to rotate to an open state of opening the small temperature swing return air inlet 131 under the flow promoting effect of the return air flow within the small temperature swing compartment 13 when the small temperature swing compartment 13 is refrigerating, and to rotate to a closed state of shielding the small temperature swing return air inlet 131 under the self gravity effect when the small temperature swing compartment 13 is not refrigerating.

When the small temperature-changing chamber 13 is refrigerated, the return air flow in the small temperature-changing chamber 13 needs to flow into the return air pipe 20, and the wind shielding piece 21 is driven to rotate to an open state under the flow promotion effect of the return air flow so as to allow the return air flow to flow into the return air pipe 20, so that the normal return air of the small temperature-changing chamber 13 is realized; when the small temperature-changing chamber 13 does not refrigerate, no return air flow in the small temperature-changing chamber 13 flows into the return air pipe, namely no return air flow has a promotion effect on the wind shielding piece 21, and at the moment, the wind shielding piece 21 rotates to a closed state under the action of self gravity so as to shield the small temperature-changing return air inlet 131, and the small temperature-changing chamber 13 forms a completely closed environment, so that the problem of condensation or icing caused by air flowing between the refrigerating chamber 12 and the small temperature-changing chamber 13 is avoided. And, even when refrigerating room 12 is refrigerating, the small temperature change air return port 131 will not generate negative pressure, thereby avoiding the problem of frost or icing caused by continuously sucking outside air from the door seal due to the large negative pressure generated at the small temperature change air return port 131 when refrigerating room 12 is refrigerating.

In some embodiments, the first cooling chamber 151 is located below the freezer compartment 11 and the second cooling chamber 152 is located below the soak compartment 14. That is, the first cooling chamber 151 and the second cooling chamber 152 are both arranged at the bottom of the case 10, so that the space at the rear side of the case 10 is not occupied, and the space in the depth direction of each storage compartment is increased.

Further, the return air flow in the freezing compartment 11 is returned to the first cooling compartment 151 through the first return air inlet located at the bottom front side thereof, and the return air flow in the total temperature changing compartment 14 is returned to the second cooling compartment 152 through the second return air inlet located at the bottom front side thereof. Because the freezing compartment 11 is adjacently arranged above the first cooling compartment 151, and the full-temperature changing compartment 14 is adjacently arranged above the second cooling compartment 152, the return air of the freezing compartment 11 can directly return to the first cooling compartment 151 through the return air inlet at the front side of the bottom of the chamber, and the return air flow in the full-temperature changing compartment 14 can directly return to the second cooling compartment 152 through the return air inlet at the front side of the bottom of the chamber, so that separate return air channels are not required to be arranged for the freezing compartment 11 and the full-temperature changing compartment 14, the air channel structure is simplified, the space occupied by the air channel structure is reduced, and the volume ratio of the refrigerating and freezing device 1 is further improved.

In some embodiments, the freezer compartment 11 and the first cooling compartment 151 may be separated by a freezer evaporator cover 41 and the full temperature change compartment 14 and the second cooling compartment 152 may be separated by a temperature change evaporator cover 42. The first air return port and the second air return port are respectively arranged on the freezing evaporator cover plate 41 and the temperature-changing evaporator cover plate 42.

Further, the front side of the freezing evaporator cover 41 is covered with a first cover plate 51, and the front side of the temperature changing evaporator cover 42 is covered with a second cover plate 52, so that the freezing evaporator cover 41 and the temperature changing evaporator cover 42 are covered by the first cover plate 51 and the second cover plate 52, respectively, to play a role of decoration.

Specifically, the first return air inlet may include a first front return air inlet 511 formed in the first cover plate 51 and a first rear return air inlet 411 formed in the front side of the freezing evaporator cover plate 41. The second return air inlet may specifically include a second front return air inlet 521 formed in the second housing plate 52 and a second rear return air inlet 421 formed in the front side of the temperature swing evaporator cover plate 42.

In some embodiments, the case 10 includes a liner portion for forming an inside thereof, a case 10d for forming an outside thereof, and a foamed insulation (not shown in the drawings) between the liner portion and the case 10 d. Wherein, return air pipe 20 sets up in the foaming heat preservation, does not occupy the inner space of inner bag portion, has further improved the volume fraction of refrigerating and freezing device 1. In addition, the foaming heat-insulating layer has heat-insulating function, and the temperature of the return air flow flowing in the return air pipe 20 can not be dispersed to the inner container part, so that the refrigerating effect and the refrigerating efficiency of each storage compartment can not be influenced.

Specifically, the liner portion includes specifically a freezing liner 10a for defining a freezing compartment 11, a refrigerating liner 10b for defining a refrigerating compartment 12, and a temperature changing liner 10c for defining a small temperature changing compartment 13 and a full temperature changing compartment 14. The return air pipe 20 extends downwards from the rear side of the bottom of the refrigeration liner 10b to the rear side of the temperature changing liner 10c, and bends and extends forwards from the bottom of the temperature changing liner 10c.

Since the temperature of the freezing compartment 11 is low, the temperature in the refrigerating compartment 12 is relatively high, and the small temperature changing compartment 13 and the full temperature changing compartment 14 both belong to the temperature changing compartments, the design of forming the freezing compartment 11 in the freezing liner 10a alone, forming the refrigerating compartment 12 in the refrigerating liner 10b alone, and forming the small temperature changing compartment 13 and the full temperature changing compartment 14 in the temperature changing liner 10c together is more reasonable.

In some embodiments, the return air duct 20 includes a first duct section 22 vertically disposed on the rear side of the liner section, and a second duct section 23 extending forward from the bottom of the first duct section 22 to the front of the second cooling compartment 152. The bottom rear side of the refrigerating compartment 12 is provided with a refrigerating return air inlet 121, the bottom rear side of the small temperature changing compartment 13 is provided with a small temperature changing return air inlet 131, and both the refrigerating return air inlet 121 and the small temperature changing return air inlet 131 are communicated with the first pipe section 22 so as to shorten the connection length between the refrigerating return air inlet 121 and the return air pipe 20 and the connection length between the small temperature changing return air inlet 131 and the return air pipe 20 as much as possible.

In some embodiments, the bottom outer side of the inner container portion is formed with a receiving space 10c2 recessed laterally inward from a lateral side wall 10c1 of the inner container portion adjacent to the lateral second side of the case 10, and a rear end of the receiving space 10c2 is opened so that the second pipe section 23 of the return air duct 20 extends thereinto.

Further, the first pipe section 22, the refrigeration return air opening 121 and the small temperature change return air opening 131 are adjacent to the lateral side wall 10c1, and the second pipe section 23 extends into the accommodating space 10c2 from the rear side of the accommodating space 10c2 and extends forward in the accommodating space 10c 2. That is, the accommodating space 10c2 provides an accommodating space for the second pipe section 23 of the return air duct 20.

Since the refrigerating compartment 12 and the small temperature changing compartment 13 are both located at the second side in the lateral direction of the case 10, the refrigerating return air port 121 and the small temperature changing return air port 131 are both disposed adjacent to the lateral side wall 10c1 of the inner container portion located at the second side in the lateral direction, so that the refrigerating return air port 121 and the small temperature changing return air port 131 are both located at the lateral outer side of the inner container portion, thereby facilitating arrangement of the return air duct 20.

Specifically, the accommodating space 10c2 may be formed at the bottom of the temperature changing liner 10c adjacent to the laterally outer side thereof facing away from the freezing liner 10 a.

In some embodiments, the inner side of the inner container portion forms a first support stand 10c3 corresponding to the lateral side of the accommodating space 10c2, and an air flow outlet 10c4 communicating with the second cooling chamber 152 is formed on the lateral side wall of the first support stand 10c 3. The end of the second pipe section 23 extends to the air flow outlet 10c4 and is connected air-tightly to the air flow outlet 10c4. That is, the return air flows in the refrigerating compartment 12 and the small temperature change compartment 13 flow into the second cooling compartment 152 through the side portion of the liner portion, and the appearance of the front side of the liner portion is not impaired.

In some embodiments, the lateral side wall of the first support stand 10c3 has a longitudinal wall surface 10c31 extending from the rear to the front and an inclined wall surface 10c32 extending obliquely from the front end of the longitudinal wall surface 10c31 from the rear to the front toward the lateral outside. The air outlet 10c4 is formed on the inclined wall surface 10c32, so that the return air flowing out from the air outlet 10c4 is blown to the middle part of the front side of the liner part, and part of the return air is prevented from flowing backwards directly without fully exchanging heat through the evaporator.

In some embodiments, the second cooling chamber 152 is provided with the second evaporator 32 disposed laterally therein, and the air flow outlet 10c4 is disposed further forward than the front end of the second evaporator 32, so that the return air flow from the air flow outlet 10c4 is blown toward the front side of the second evaporator 32 and flows through the entire second evaporator 32 from front to back so as to exchange heat with the second evaporator 32 sufficiently.

In some embodiments, the refrigeration and freezer 1 further includes a variable temperature evaporator cover 42, the variable temperature evaporator cover 42 disposed between the full variable temperature compartment 14 and the second cooling compartment 152 for separating the full variable temperature compartment 14 and the second cooling compartment 152. The temperature change evaporator cover 42 includes a rear section 422 extending from the rear to the front, and a front section 423 extending downward from the front end of the rear section 422, the rear section 422 overlapping the first support table 10c3 to stably support the temperature change evaporator cover 42; the front section 423 is located on the front side of the airflow outlet 10c4 to shield the airflow outlet 10c4.

Further, a first evaporator 31 disposed transversely is disposed in the first cooling chamber 151, and a freezing evaporator cover 41 is covered over the first evaporator 31, thereby isolating the freezing compartment 11 from the first cooling chamber 151.

It should be understood by those skilled in the art that the above-described embodiments are only a part of embodiments of the present utility model, and not all embodiments of the present utility model, and the part of embodiments is intended to explain the technical principles of the present utility model and not to limit the scope of the present utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present utility model, shall still fall within the scope of protection of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "top", "bottom", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on actual use states of the refrigerating and freezing apparatus 1, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Further, it should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (11)

1. A refrigeration and freezer comprising:

a case defining a freezing compartment, a refrigerating compartment, a small temperature changing compartment, and a full temperature changing compartment for storing articles therein, and first and second cooling compartments for cooling an air flow passing therethrough;

the refrigerating compartment is positioned at a first side in the transverse direction of the box body, and the refrigerating compartment, the small temperature changing compartment and the full temperature changing compartment are sequentially arranged from top to bottom at a second side in the transverse direction of the box body;

the refrigeration compartment is provided with cold by a first air flow cooled by the first cooling compartment, and the refrigeration compartment, the small temperature change compartment and the full temperature change compartment are provided with cold by a second air flow cooled by the second cooling compartment; and is also provided with

And the return air flows in the refrigerating room and the small temperature changing room return to the second cooling room through the same return air pipe.

2. A refrigerating and freezing apparatus according to claim 1, wherein,

the small temperature-changing room is provided with a small temperature-changing air return port communicated with the air return pipe, and the small temperature-changing air return port is positioned at the downstream side of the cold-storing air return port in the air flow direction in the air return pipe; and is also provided with

The small temperature-changing air return port is internally provided with a rotatable wind shield which is configured to rotate to an opening state for opening the small temperature-changing air return port under the flow promotion effect of return air flow in the small temperature-changing chamber when the small temperature-changing chamber is refrigerated and to rotate to a closing state for shielding the small temperature-changing air return port under the self gravity effect when the small temperature-changing chamber is not refrigerated.

3. A refrigerating and freezing apparatus according to claim 1, wherein,

the first cooling chamber is positioned below the freezing chamber, and the second cooling chamber is positioned below the full-temperature changing chamber; and is also provided with

The return air flow in the freezing room returns to the first cooling room through a first return air inlet positioned at the front side of the bottom of the freezing room, and the return air flow in the full-temperature room returns to the second cooling room through a second return air inlet positioned at the front side of the bottom of the full-temperature room.

4. A refrigerating and freezing apparatus according to claim 3, wherein,

the box body comprises an inner container part used for forming the inside of the box body, a box shell used for forming the outside of the box body, and a foaming heat-insulating layer positioned between the inner container part and the box shell; wherein the method comprises the steps of

The return air pipe is arranged in the foaming heat preservation layer.

5. A refrigerating and freezing apparatus as recited in claim 4, wherein,

the return air pipe comprises a first pipe section vertically arranged at the rear side of the inner container part and a second pipe section extending forwards from the bottom of the first pipe section to the front part of the second cooling chamber; wherein the method comprises the steps of

The bottom rear side of the refrigerating compartment is provided with a refrigerating air return port, the bottom rear side of the small temperature changing compartment is provided with a small temperature changing air return port, and the refrigerating air return port and the small temperature changing air return port are communicated with the first pipe section.

6. A refrigerating and freezing apparatus according to claim 5, wherein,

the outer side of the bottom of the inner container part is provided with a containing space which is recessed inwards and transversely from the transverse side wall of the inner container part adjacent to the transverse second side of the box body, and the rear end of the containing space is open; and is also provided with

The first pipe section, the refrigerating air return port and the small temperature-changing air return port are adjacent to the transverse side wall, and the second pipe section extends into the accommodating space from the rear side of the accommodating space and extends forwards in the accommodating space.

7. A refrigerating and freezing apparatus as recited in claim 6, wherein,

a first supporting table is formed on the inner side of the inner container part corresponding to the transverse side part of the accommodating space, and an air flow outlet communicated with the second cooling chamber is formed on the transverse side wall of the first supporting table; and is also provided with

The tail end of the second pipe section extends to the airflow outlet and is in airtight connection with the airflow outlet.

8. A refrigerating and freezing apparatus as recited in claim 7, wherein,

the transverse side wall of the first supporting table is provided with a longitudinal wall surface extending from back to front and an inclined wall surface extending obliquely from back to front towards the transverse outer side from the front end of the longitudinal wall surface; and is also provided with

The air flow outlet is arranged on the inclined wall surface.

9. A refrigerating and freezing apparatus as recited in claim 7, wherein,

and a second evaporator which is transversely arranged is arranged in the second cooling chamber, and the airflow outlet is more forward than the front end of the second evaporator.

10. The refrigeration and freezer of claim 7, further comprising:

the variable temperature evaporator cover plate is arranged between the full variable temperature chamber and the second cooling chamber and used for separating the full variable temperature chamber from the second cooling chamber; and is also provided with

The temperature change evaporator cover plate comprises a rear section extending from back to front and a front section extending downwards from the front end of the rear section, wherein the rear section is lapped on the first supporting table, and the front section is positioned on the front side of the airflow outlet so as to cover the airflow outlet.

11. A refrigerating and freezing apparatus as recited in claim 4, wherein,

the inner container part comprises a freezing inner container used for limiting the freezing compartment, a refrigerating inner container used for limiting the refrigerating compartment and a temperature changing inner container used for limiting the small temperature changing compartment and the full temperature changing compartment;

the air return pipe extends downwards from the rear side of the bottom of the refrigeration liner to the rear side of the temperature changing liner, and bends and extends forwards from the bottom of the temperature changing liner.

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