CN-224215660-U - Air duct assembly and refrigeration equipment

CN224215660UCN 224215660 UCN224215660 UCN 224215660UCN-224215660-U

Abstract

The application provides an air duct assembly and refrigeration equipment. The air duct assembly includes a back cover plate and a top cover plate. The back cover plate is provided with a top side part and a bottom side part which are arranged at intervals along the height direction of the back cover plate, and the back cover plate is also provided with air return openings which are distributed between the top side part and the bottom side part. The top cover plate comprises a connecting part connected with the top side part, a bearing part connected with the connecting part and an air outlet part connected with the bearing part, wherein the connecting part, the bearing part and the air outlet part are sequentially arranged along the thickness direction of the back cover plate, and the air outlet part is provided with an air outlet. The bearing part is used for installing an evaporator of the refrigeration equipment, and the air outlet part is used for installing a fan of the refrigeration equipment, so that the fan blows cool air subjected to heat exchange by the evaporator out of the air outlet and then sucks the cool air back from the air return opening. The air duct component provided by the application can improve the cool air supply path of the refrigeration equipment, improve the refrigeration effect of front-row articles and improve the user satisfaction.

Inventors

ZHANG HUAN
ZHANG QIAN
XU LEI
WANG SHUN

Assignees

青岛海尔特种电冰柜有限公司
海尔智家股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250429

Claims (13)

1. An air duct assembly for a refrigeration appliance, comprising: A back cover plate provided with a top side part and a bottom side part which are arranged at intervals along the height direction of the back cover plate, and air return openings distributed between the top side part and the bottom side part, and The top cover plate comprises a connecting part connected with the top side part, a bearing part connected with the connecting part and an air outlet part connected with the bearing part, wherein the connecting part, the bearing part and the air outlet part are sequentially arranged along the thickness direction of the back cover plate, and the air outlet part is provided with an air outlet; The bearing part is used for installing an evaporator of the refrigeration equipment, and the air outlet part is used for installing a fan of the refrigeration equipment, so that the fan blows cool air subjected to heat exchange of the evaporator out of the air outlet and then sucks the cool air back from the air return opening.
2. The air duct assembly according to claim 1, wherein the connecting portion is provided with a mounting structure protruding along the top side portion in a direction toward the bottom side portion, the mounting structure is connected with the top side portion, a side of the bearing portion facing away from the mounting structure is used for mounting the evaporator, and a side of the air outlet portion facing away from the mounting structure is used for mounting the fan.
3. The air duct assembly of claim 2, further comprising two air deflectors protruding from the bearing portion along the direction of the bottom portion toward the top portion, the two air deflectors being disposed at opposite intervals and extending toward the air outlet portion along the bearing portion, respectively, a first space being provided between the bottom portion of the evaporator and the bearing portion between the two air deflectors for accommodating the evaporator.
4. The air duct assembly of claim 3, wherein the top cover plate is further provided with ribs, the ribs are arranged between the bearing part and the air outlet part in a protruding manner along the direction from the bottom side part to the top side part, and the height of the ribs is not lower than the first interval and not more than the air deflector.
5. The air duct assembly of claim 2, wherein the top cover plate is further provided with a drainage structure, the connection portion is provided with a limit structure protruding in the direction of the air outlet portion toward the bearing portion, a water inlet end of the drainage structure is arranged between the bearing portion and the connection portion, and a water outlet end of the drainage structure is arranged between the limit structure and the installation structure.
6. The air duct assembly of claim 5, wherein the drainage structure includes a water blocking portion protruding between the bearing portion and the connecting portion along the bottom portion toward the top portion, and a drainage channel communicating with the water blocking portion, and a water outlet end of the drainage channel is disposed between the limiting structure and the mounting structure.
7. The duct assembly of claim 5, wherein the carrier is disposed at an incline such that an end of the carrier connected to the connection portion is lower than an end of the carrier connected to the air outlet portion in a direction along the bottom portion toward the top portion; and/or the bearing part is also provided with a plurality of guide ribs, and the guide ribs extend towards the drainage structure.
8. The duct assembly of claim 1, wherein the open area of the return air openings increases gradually and/or the number of return air openings increases gradually in a direction along the top side portion toward the bottom side portion.
9. The air duct assembly of claim 8, wherein the back cover plate is provided with at least three layers of air return openings in sequence along the direction from the top side to the bottom side, the at least three layers of air return openings comprise a top layer air return opening, a middle layer air return opening and a bottom layer air return opening, the area S1 of the top layer air return opening accounts for 5% -15% of the total area S of the at least three layers of air return openings, the area S2 of the middle layer air return opening accounts for 20% -35% of the total area S of the at least three layers of air return openings, and the area S3 of the bottom layer air return opening accounts for 40% -50% of the total area S of the at least three layers of air return openings.
10. The air duct assembly of any one of claims 1-9, further comprising a baffle plate protruding from the top cover plate along the bottom side toward the top side, the baffle plate and the top cover plate forming a receiving cavity for receiving an evaporator and a fan of the refrigeration unit, and the return air inlet and the air outlet being in communication with the receiving cavity, respectively.
11. A refrigeration device is characterized by comprising a shell assembly, an evaporator, a fan and an air duct assembly as set forth in any one of claims 1 to 10, wherein the shell assembly is provided with an installation cavity and an opening communicated with the installation cavity, the shell assembly comprises a back wall portion arranged opposite to the opening, a top wall portion and a bottom wall portion which are arranged at intervals along the height direction of the refrigeration device, the air duct assembly is arranged in the installation cavity, the back cover plate covers the back wall portion and is arranged at intervals with the back wall portion, the top cover plate covers the top wall portion and is arranged at intervals with the top wall portion so as to divide the installation cavity into a refrigeration room communicated with the opening and a rear air duct communicated with the refrigeration room, the evaporator is arranged between the bearing portion and the top wall portion, the fan is arranged between the air outlet portion and the top wall portion, the air outlet and the air return opening are respectively communicated with the refrigeration room, the fan blows cooled air from the back cover plate to the air outlet through the evaporator and then the air return channel through the evaporator.
12. The refrigeration appliance according to claim 11, wherein a second distance is provided between said evaporator and said fan in a direction along said air outlet portion toward said carrying portion, said second distance being set to 5cm to 20cm.
13. The refrigeration appliance according to claim 11 or 12 further comprising a door assembly movably connected to said housing assembly and covering said opening, and a shelf assembly mounted in said refrigeration compartment and spaced from said door assembly to form a front air duct along which said air blown into said refrigeration compartment by said fan can sink toward said bottom side.

Description

Air duct assembly and refrigeration equipment Technical Field The application relates to the technical field of refrigeration equipment, in particular to an air duct assembly and refrigeration equipment. Background Refrigerating equipment such as a refrigerator, a freezer or an air conditioner is an indispensable household electrical appliance in daily life. The refrigerating equipment can absorb heat to surrounding gas through the evaporator to generate cool air, and then the cool air is blown out through the fan to maintain the refrigerating effect. Taking a refrigerator as an example, the refrigerator is provided with a refrigeration compartment for storing articles such as drinks or fruits, vegetables and flowers and a cabinet door for opening or closing the refrigeration compartment, and an evaporator and a fan of the refrigerator are used for conveying cool air to the refrigeration compartment to maintain the refrigeration effect so as to prolong the storage period of the articles. However, in the related art, the refrigerating apparatus generally outputs cool air from a rear portion (a side opposite to a door body of the refrigerating apparatus) of the refrigerating compartment, and the cool air is again cooled by flowing from the rear portion toward a front discharge near the door body. The back air supply refrigerating mode can cause certain temperature difference between the front-row articles and the back-row articles, so that the front-row articles are poor in refrigerating effect, and the use experience of users is affected. Disclosure of utility model In view of the above, the present application provides an air duct assembly and a refrigeration device, which can improve the cool air supply path of the refrigeration device, improve the refrigeration effect of the front-row articles, and improve the user satisfaction. Specifically, the application is realized by the following technical scheme: According to a first aspect of an embodiment of the present application, there is provided an air duct assembly for a refrigeration appliance. The air duct assembly includes a back cover plate and a top cover plate. The back cover plate is provided with a top side part and a bottom side part which are arranged at intervals along the height direction of the back cover plate, and the back cover plate is also provided with air return openings which are distributed between the top side part and the bottom side part. The top cover plate comprises a connecting part connected with the top side part, a bearing part connected with the connecting part and an air outlet part connected with the bearing part, wherein the connecting part, the bearing part and the air outlet part are sequentially arranged along the thickness direction of the back cover plate, and the air outlet part is provided with an air outlet. The bearing part is used for installing an evaporator of the refrigeration equipment, and the air outlet part is used for installing a fan of the refrigeration equipment, so that the fan blows cool air subjected to heat exchange by the evaporator out of the air outlet and then sucks the cool air back from the air return opening. According to a second aspect of an embodiment of the present application, there is provided a refrigeration apparatus including a housing assembly, an evaporator, a fan, and the above-described air duct assembly. The shell component is provided with an installation cavity and an opening communicated with the installation cavity, and comprises a back wall part which is opposite to the opening, and a top wall part and a bottom wall part which are arranged at intervals along the height direction of the refrigeration equipment. The air duct component is arranged in the mounting cavity, the back cover plate is covered on the back wall part and is arranged at intervals with the back wall part, and the top cover plate is covered on the top wall part and is arranged at intervals with the top wall part, so that the mounting cavity is divided into a refrigerating room communicated with the opening and a rear air duct communicated with the refrigerating room. The evaporator is arranged between the bearing part and the top wall part, the fan is arranged between the air outlet part and the top wall part, the air outlet and the air return opening are respectively communicated with the refrigerating chamber, the fan blows cool air cooled by the evaporator into the refrigerating chamber from the air outlet, and then the air in the refrigerating chamber is sucked back to the rear air duct from the air return opening to exchange heat with the evaporator. The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects: The air duct component is used for being matched with the shell of the refrigeration equipment to form an air duct communicated with the refrigeration compartment of the refrigeration equipment. The back cover plate can be used for cov