CN219120858U - Refrigerating air duct assembly, air duct system and refrigerator - Google Patents

Abstract

The application provides a cold storage air duct assembly, an air duct system and a refrigerator. The refrigerating air duct assembly is applied to a single-system refrigerator, the single-system refrigerator is provided with a freezing chamber and a refrigerating chamber, an evaporator and a refrigerating fan are arranged in a refrigerating air duct corresponding to the freezing chamber, the refrigerating fan is used for blowing out low-temperature gas after heat exchange with the evaporator, and the refrigerating air duct assembly is used for conveying the low-temperature gas to the refrigerating chamber. The cold-stored wind channel subassembly includes: the refrigerating air duct plate is provided with a refrigerating air outlet and a refrigerating air duct, the refrigerating air duct is provided with an air supply cavity and an air suction cavity, the air supply cavity is communicated with the refrigerating air outlet, and the air suction cavity is used for communicating an air outlet end of the refrigerating fan; the refrigerating fan is arranged between the air supply cavity and the air suction cavity and is used for blowing air in the air suction cavity to the air supply cavity. According to the refrigerator, the refrigerating fan is arranged in the refrigerating air duct, when the refrigerating chamber needs to be refrigerated, the refrigerating fan can accelerate low-temperature gas at the air outlet end of the refrigerating fan to be conveyed to the refrigerating chamber, and therefore the refrigerating speed of the refrigerating chamber is improved.

Description

Refrigerating air duct assembly, air duct system and refrigerator

Technical Field

The application relates to the technical field of refrigerators, in particular to a refrigerating air duct assembly, an air duct system and a refrigerator.

Background

Refrigerators are generally classified into a single-system refrigerator and a dual-system refrigerator, wherein refrigeration of a refrigerating compartment and refrigeration of a freezing compartment in the single-system refrigerator share one evaporator, refrigeration of the refrigerating compartment in the dual-system refrigerator corresponds to one evaporator and one fan, and refrigeration of the freezing compartment corresponds to the other evaporator and one fan, so that independent circulating refrigeration of the refrigerating compartment and the freezing compartment is realized.

In the single-system refrigerator commonly used in the market at present, an evaporator and a fan are generally located in an air channel area corresponding to a refrigerating compartment, a refrigerating compartment is located above the refrigerating compartment, and an air outlet of the refrigerating compartment is generally located above the refrigerating compartment, so that the distance between the air outlet of the refrigerating compartment and the fan is relatively long, and the refrigerating speed of the refrigerating compartment is low.

Disclosure of Invention

The application provides a cold-stored wind channel subassembly, air duct system and refrigerator to solve the low technical problem of refrigeration speed of the cold-stored room of current single system refrigerator.

In order to solve the above-mentioned problem, the present application provides a cold-stored wind channel subassembly, is applied to single system refrigerator, single system refrigerator has freezer and freezer, be provided with evaporimeter and freezing fan in the freezing wind channel that the freezer corresponds, freezing fan be used for with low temperature gas after the evaporimeter heat transfer blows out, cold-stored wind channel subassembly is used for with low temperature gas carries to the freezer, cold-stored wind channel subassembly includes:

the refrigerating air duct plate is provided with a refrigerating air outlet and a refrigerating air duct, the refrigerating air duct is provided with an air supply cavity and an air suction cavity, the air supply cavity is communicated with the refrigerating air outlet, and the air suction cavity is used for communicating an air outlet end of the refrigerating fan;

the refrigerating fan is arranged between the air supply cavity and the air suction cavity and is used for blowing air in the air suction cavity to the air supply cavity.

Wherein, the cold-stored wind channel board still has:

and the first air return opening is used for returning the air in the refrigerating chamber to the air suction cavity.

Wherein the refrigerated air duct board has opposed first and second sides;

the first return air inlet includes:

the first sub-return air inlet is positioned at the first side;

and the second sub-return air inlet is positioned at the second side.

Wherein, the cold-stored wind channel subassembly still includes:

and the first air door is used for closing the first air return opening.

Wherein the refrigeration air outlet comprises a plurality of first air outlets and a plurality of second air outlets;

the air supply cavity comprises:

the first air passages are communicated with the first air outlets;

and the second air passages are communicated with the second air outlets.

Wherein the refrigerated air duct board has opposed first and second sides;

at least one first air outlet is positioned on the first side; at least one second air outlet is positioned at the second side.

Wherein, the cold-stored wind channel board includes:

the air duct cover plate is positioned at one side of the refrigerating air duct plate, which faces the refrigerating chamber;

the heat preservation cover plate is positioned at one side of the refrigerating air duct plate, which is used for deviating from the refrigerating chamber;

the heat preservation layer is provided with a runner groove which is positioned between the air duct cover plate and the heat preservation cover plate, and the runner groove is used for forming the refrigerating air duct.

Wherein, when the cold-stored wind channel board has first return air inlet, the runner groove includes:

and the return air groove is communicated with the air suction cavity.

The direction from the air suction cavity to the air supply cavity is a first direction, the second direction is perpendicular to the first direction, and the air return groove extends along the second direction.

The application also provides an air duct system, comprising:

the refrigerating air duct assembly comprises a refrigerating air duct plate and a refrigerating fan, wherein the refrigerating air duct plate is used for forming a refrigerating air duct, and the refrigerating fan is arranged in the refrigerating air duct;

any of the refrigerated air duct assemblies described above; and

and the connecting assembly is used for communicating the refrigerating air duct formed by the refrigerating air duct assembly and the refrigerating air duct.

And a second air door is arranged between the air outlet end of the refrigerating fan and the air inlet end of the refrigerating fan in the refrigerating air duct assembly and is used for blocking communication between the refrigerating air duct and the refrigerating air duct.

The present application also provides a refrigerator comprising any of the air duct systems described above or comprising any of the refrigerated air duct assemblies described above.

The beneficial effects of this embodiment of the application are: the application provides a cold-stored wind channel subassembly, cold-stored wind channel subassembly is applied to single system refrigerator. A single system refrigerator has a freezing compartment and a refrigerating compartment. Wherein the freezing air duct corresponding to the freezing chamber is internally provided with an evaporator and a freezing fan. The refrigerating fan is used for blowing out low-temperature gas after heat exchange with the evaporator. The cold-stored wind channel subassembly that this application provided is used for carrying the cold chamber with the low temperature gas that the freezing fan blown out. The refrigeration air duct assembly includes a refrigeration air duct plate and a fan. The cold storage air duct plate is provided with a cold storage air outlet and a cold storage air duct. The refrigerating air duct is provided with an air supply cavity and an air suction cavity. The air supply cavity is communicated with the refrigerating air outlet. The air suction cavity is used for communicating an air outlet end of the refrigerating fan. The refrigerating fan is arranged between the air supply cavity and the air suction cavity. The refrigerating fan is used for blowing the air in the air suction cavity to the air supply cavity. The utility model provides a cold-stored wind channel subassembly is through setting up cold-stored fan in cold-stored wind channel, when the cold-stored room needs refrigeration, cold-stored fan can inhale the cold-stored wind channel with the low temperature gas of freezing fan air-out end for the diffusion rate of low temperature gas to cold-stored wind channel to can improve the refrigeration rate of cold-stored room.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic perspective view of a refrigeration air duct assembly provided herein;

FIG. 2 is a schematic view of an exploded construction of the refrigerated air duct assembly provided herein;

FIG. 3 is a schematic plan view of a side of a duct cover of the refrigeration duct assembly provided herein;

FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;

fig. 5 is a schematic plan view of a side of a heat insulation layer with a flow channel in the refrigerating air duct assembly provided by the application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic perspective view of a refrigeration air duct assembly provided in the present application. The present application provides a refrigerated air duct assembly 100. The refrigeration stack assembly 100 may be applied to a single system refrigerator. Refrigerators generally have a freezing compartment and a refrigerating compartment. The freezing chamber and the refrigerating chamber are generally distributed up and down, and the freezing chamber can be arranged above the refrigerating chamber or below the refrigerating chamber. The single system refrigerator also has a freezing compartment and a refrigerating compartment. The refrigeration of the freezing chamber and the refrigerating chamber of the single-system refrigerator shares one evaporator. The evaporator is generally arranged in the refrigerating air duct corresponding to the refrigerating chamber. A refrigerating fan is also arranged in the refrigerating air duct. The refrigerating fan is used for blowing out low-temperature gas after heat exchange with the evaporator. For example, the freezing wind channel may have an air inlet chamber and an air outlet chamber, the evaporator is disposed in the air inlet chamber, the freezing fan is disposed between the air inlet chamber and the air outlet chamber, the air inlet end of the freezing fan faces the air inlet chamber, the air outlet end of the freezing fan faces the air outlet chamber, the freezing fan is used for blowing out low-temperature gas, that is, the freezing fan is used for blowing low-temperature gas from the air inlet chamber to the air outlet chamber, and then the low-temperature gas of the air outlet chamber is diffused from each air outlet to the freezing chamber and/or the refrigerating chamber, thereby realizing refrigeration of the freezing chamber and/or the refrigerating chamber. The refrigerating air duct assembly 100 and the refrigerating chamber in the single-system refrigerator are correspondingly arranged, and the refrigerating air duct assembly 100 is used for conveying low-temperature gas blown out by the refrigerating fan to the refrigerating chamber so as to realize refrigeration of the refrigerating chamber.

Referring to fig. 2 to 4, fig. 2 is an exploded schematic view of a refrigeration air duct assembly provided in the present application, fig. 3 is a schematic plan view of an air duct cover of the refrigeration air duct assembly provided in the present application, and fig. 4 is a cross-sectional view in A-A direction in fig. 3. The refrigerated air duct assembly 100 provided herein includes a refrigerated air duct board 10 and a refrigerated fan 30. The cooling duct board 10 has a cooling air outlet 111 and a cooling duct 20. The refrigerating duct 20 has an air supply chamber 21 and an air suction chamber 22. The air supply chamber 21 communicates with the refrigeration outlet 111. The air suction cavity 22 is used for communicating with the air outlet end of the refrigerating fan. The refrigerating fan 30 is disposed in the refrigerating duct 20 and located between the air supply chamber 21 and the air suction chamber 22. The refrigerating fan 30 is used for blowing air of the air suction cavity 22 to the air supply cavity 21.

When the refrigerating duct assembly 100 is applied to a single-system refrigerator, the refrigerating duct plate 10 is disposed in a case of the single-system refrigerator, and the refrigerating duct plate 10 is disposed corresponding to a refrigerating chamber in the case. The refrigerating air duct plate 10 is arranged on the side wall of the corresponding area of the refrigerator body and the refrigerating chamber, and the refrigerating air duct plate 10 and the side wall of the refrigerator body jointly enclose a refrigerating chamber of the refrigerating chamber. The present application is not limited to which side wall of the case the refrigeration duct board 10 is specifically disposed, for example, the refrigeration duct board 10 is generally disposed on a back wall of the case. The back wall of the case refers to the side wall of the case facing the door of the single-system refrigerator. The specific structure of the refrigerated air duct board 10 is not limited in this application, for example, in some embodiments, the refrigerated air duct board 10 may include an air duct cover 11, a thermal insulation cover 12, and a thermal insulation layer 13.

The duct cover 11 is located on the side of the refrigeration duct plate 10 for facing the refrigeration compartment. A thermal cover plate 12 is located on the side of the refrigerated air duct board 10 facing away from the refrigerated compartment. The heat preservation layer 13 is arranged between the air duct cover plate 11 and the heat preservation cover plate 12. The insulating layer 13 is provided with flow channel grooves 131. The flow channel groove 131 is used to form the refrigerating duct 20. The runner groove 131 is arranged on one side of the heat insulation layer 13 facing the heat insulation cover plate 12. The heat-insulating cover plate 12 is covered on one side of the heat-insulating layer 13 provided with the runner groove 131, so that the runner groove 131 forms the refrigerating air duct 20. The heat-insulating cover 12 and the heat-insulating layer 13 are both made of heat-insulating material. The specific materials of the heat-insulating cover 12 and the heat-insulating layer 13 are not limited in this application, and may be, for example, polyurethane materials.

The refrigerating duct 20 has an air supply chamber 21 and an air suction chamber 22. The air supply chamber 21 communicates with the refrigerating outlet 111, so that the low temperature air in the air supply chamber 21 can be diffused into the refrigerating chamber through the refrigerating outlet 111. The refrigerating outlet 111 of the refrigerating duct board 10 may be formed on the duct cover 11. The refrigerating outlet 111 may be formed at a side surface of the duct cover 11 facing away from the heat insulation cover 12. In some embodiments, the edge of the air duct cover 11 is provided with a flange 113 extending towards one side of the heat insulation layer 13, the air duct cover 11 forms a containing groove towards one side of the heat insulation layer 13, and the heat insulation layer 13 can be embedded in the containing groove when the air duct cover 11, the heat insulation layer 13 and the heat insulation cover 12 cooperate to form the refrigerating air duct plate 10. At this time, the refrigerating outlet 111 may be formed on the side of the air duct cover 11, that is, the refrigerating outlet 111 is formed on an adjacent surface of the air duct cover 11 facing away from the surface of the insulating cover 12. A plurality of refrigerating outlets 111 on the duct cover 11 may be provided. The specific distribution of the plurality of refrigeration air outlets 111 on the air duct cover plate 11 is not limited, and the plurality of refrigeration air outlets 111 can be formed on one side surface of the air duct cover plate 11, deviating from the heat insulation cover plate 12, and can also be formed on the folded edge 113 of the air duct cover plate 11. Among the plurality of refrigeration air outlets 111, a plurality of refrigeration air outlets 111 may be formed on a surface of the air duct cover plate 11 on a side facing away from the heat preservation cover plate 12, and a plurality of refrigeration air outlets 111 may be formed on the folded edge 113 of the air duct cover plate 11.

Referring to fig. 5, fig. 5 is a schematic plan view of a side of the heat insulation layer with a flow channel in the refrigeration air duct assembly provided by the present application. In some embodiments, the plurality of refrigeration outlets 111 may include a number of first outlets 111a and a number of second outlets 111b. In order to ensure the uniformity of the air outlet of the refrigerating chamber, a plurality of first air outlets 111a and a plurality of second air outlets 111b may be symmetrically arranged. For example, taking a state in which a single-system refrigerator is placed in normal use as an example, the plurality of first air outlets 111a and the plurality of second air outlets 111b may be symmetrically disposed with respect to a vertical axis to the refrigerating duct board 10, but is not limited thereto. When the refrigerating outlet 111 includes a plurality of first outlets 111a and a plurality of second outlets 111b, the air supply chamber 21 may include a first air path 211 and a second air path 212. Wherein the first air path 211 is communicated with the plurality of first air outlets 111a, and the second air path 212 is communicated with the plurality of second air outlets 111b.

The air suction cavity 22 in the refrigerating air duct 20 is used for communicating with the air outlet end of the refrigerating fan. The air outlet end of the freezing blower is disposed toward the air outlet cavity of the freezing air duct, and when the refrigerating air duct assembly 100 is applied to a single-system refrigerator, even though the air suction cavity 22 in the refrigerating air duct 20 is communicated with the air outlet cavity of the freezing air duct. The refrigerating fan 30 is disposed between the air supply chamber 21 and the air suction chamber 22. The air outlet end of the refrigeration fan 30 is arranged towards the air supply cavity 21, and the air inlet end of the refrigeration fan 30 is arranged towards the air suction cavity 22, so that the refrigeration fan 30 can blow air in the air suction cavity 22 towards the air supply cavity 21. Because the induced draft cavity 22 of the refrigeration air flue 20 is communicated with the air outlet cavity of the refrigeration air flue, when the refrigeration fan works, low-temperature gas after heat exchange with the evaporator can be blown to the air outlet cavity, when the refrigeration fan 30 works, the diffusion of low-temperature gas from the air outlet cavity to the induced draft cavity 22 can be quickened, the low-temperature gas is diffused to the induced draft cavity 22, the low-temperature gas of the induced draft cavity 22 is blown to the air supply cavity 21, and then the low-temperature gas is diffused to the refrigeration chamber through the refrigeration air outlet 111 by the air supply cavity 21, so that the refrigeration of the refrigeration chamber is realized.

The air-cooled refrigerator realizes refrigeration of the refrigerator through gas circulation. It should be appreciated that the refrigerated air duct board 10 also has a second return air opening. The second return air inlet is used for enabling the air in the refrigerating chamber to return to the air inlet side of the evaporator, and the air in the air inlet side of the evaporator and the evaporator exchange heat and then become low-temperature air to be blown out. The evaporator is arranged in the air inlet cavity of the freezing air duct, so the second air return opening is communicated with the air inlet cavity of the freezing air duct. The formation position of the second air return opening on the refrigerating air duct board 10 is not limited, so that the refrigerating air outlet 111 can be formed on the upper portion of the refrigerating air duct board 10, and the second air return opening is formed on the lower portion of the refrigerating air duct board 10. The second return air port is also formed in the duct cover 11 of the refrigerating duct 20.

As shown in fig. 1 and 2, in some embodiments, the refrigerated air duct board 10 also has a first return air opening 112. The first return air inlet 112 is used to return the air of the refrigerating compartment to the air suction cavity 22 of the refrigerating duct 20.

It should be noted that, a second air door is generally disposed on the air path where the refrigerating air duct of the single-system refrigerator communicates with the refrigerating air duct 20, and the second air door is used for preventing the low-temperature air in the air outlet cavity of the refrigerating air duct from entering the refrigerating chamber. Therefore, when the freezing chamber in the single-system refrigerator needs to be refrigerated, the second air door can be closed, and the low-temperature gas is ensured to be concentrated to diffuse to the freezing chamber, so that the refrigerating efficiency of the freezing chamber is improved. When the refrigerating chamber needs to be refrigerated, the second air door is opened, so that low-temperature gas in the air outlet cavity of the refrigerating air channel can be diffused to the refrigerating air channel 20, and further is diffused to the refrigerating chamber from the refrigerating air channel 20, and refrigeration of the refrigerating chamber is realized. Of course, the refrigerating air outlet in the refrigerating chamber can be correspondingly provided with an air door, and when the refrigerating chamber needs to refrigerate, the air door corresponding to the refrigerating air outlet can be closed to prevent low-temperature gas from diffusing to the refrigerating chamber, so that the low-temperature gas can be intensively diffused to the refrigerating chamber, and the refrigerating efficiency of the refrigerating chamber is ensured.

When the second air door of the single-system refrigerator is closed, the refrigerating fan 30 can enable the air in the refrigerating chamber to be sucked into the air suction cavity 22 of the refrigerating air duct 20 during operation, and then blown to the air supply cavity 21 of the refrigerating air duct 20 by the fan, and further enters the refrigerating chamber again, so that the self-circulation of the air in the refrigerating chamber is realized. It is understood that the refrigerating fan and the evaporator can stop working at this time, or the second air return port is correspondingly provided with an air door, and the air door corresponding to the second air return port is in a closed state.

The refrigeration air duct assembly 100 provided by the application, through being provided with the first air return opening 112 on the refrigeration air duct plate 10, after refrigeration of a refrigeration chamber, can enable gas in the refrigeration chamber to realize self circulation by starting the refrigeration fan 30. Thus, when the temperature in the refrigerating chamber is uneven due to the opening and closing of the door by a user or due to the temperature of food stored in the refrigerating chamber, the refrigerating fan 30 can be started, the uniform mixing distribution of the higher temperature gas and the lower temperature gas is realized through the self-circulation of the gas in the refrigerating chamber, a refrigerating environment with uniform storage temperature is provided for the refrigerating chamber, and the refrigerating quality of the refrigerating chamber is improved.

The specific distribution of the first return air inlet 112 on the refrigeration air duct board 10 is not limited herein, for example, in some embodiments, the refrigeration air duct board 10 has a first side 113a and a second side 113b opposite to each other, and the first return air inlet 112 may include a first sub-return air inlet 112a and a second sub-return air inlet 112b, so that the first sub-return air inlet 112a is located on the first side 113a of the refrigeration air duct board 10, and the second sub-return air inlet 112b is located on the second side 113b of the refrigeration air duct board 10. Taking the placement of a single system refrigerator as an example during normal use, the opposite first and second sides 113a and 113b may be left and right sides of the refrigerating duct board 10. The first sub return air inlet 112a and the second sub return air inlet 112b may be symmetrically disposed at both left and right sides of the refrigerating duct board 10. Thus, the first air return openings 112 are formed in the opposite first and second sides 113a and 113b of the refrigerating duct board 10, so that the air in the refrigerating chamber can flow more uniformly in the self-circulation process. The specific setting number of the first sub-air return 112a and the second sub-air return 112b is not limited, and the first sub-air return 112a and the second sub-air return 112b are at least one.

In some embodiments, when the refrigeration air outlet 111 includes a plurality of first air outlets 111a and a plurality of second air outlets 111b. At least one first air outlet 111a of the plurality of first air outlets 111a may be located at the first side 113a, and at least one second air outlet 111b of the plurality of second air outlets 111b may be located at the second side 113b. In some embodiments, when the air duct cover 11 is provided with the folded edge 113, a side of the air duct cover 11, which is away from the heat insulation layer 13, may be the first side 113a, and a side of the air duct cover 11, which is away from the heat insulation layer 13, may be the second side 113b. In some embodiments, a portion of the first air outlets 111a of the plurality of first air outlets 111a may be distributed on an upper portion of the first side 113a of the cold air duct board 10, a portion of the second air outlets 111b of the plurality of second air outlets 111b may be distributed on an upper portion of the second side 113b of the air duct cover 11, the first sub-return air inlets 112a may be distributed on a lower portion of the first side 113a of the cold air duct board 10, and the second sub-return air inlets 112b may be distributed on a lower portion of the second side 113b of the cold air duct board 10. Thus, the air in the refrigerating chamber is blown out from the upper part of the refrigerating chamber and returns into the refrigerating air duct 20 from the lower part, so that the circulation of the air in the refrigerating chamber from top to bottom is realized, and the uniformity of the distribution of cold and hot air in the refrigerating chamber is ensured.

As shown in fig. 5, when the refrigerating duct board 10 has the first air return opening 112, the air channel slot 131 on the insulating layer 13 may further include an air return slot 132. The return air duct 132 is disposed in communication with the suction chamber 22. So that the air from the first return air inlet 112 enters the suction chamber 22 through the return air duct 132. The specific distribution structure of the air return grooves 132 on the heat insulation layer 13 is not limited in this application, for example, in some embodiments, the direction from the air suction cavity 22 to the air supply cavity 21 is set to be a first direction, and the second direction is a direction perpendicular to the first direction, so that the air return grooves 132 can be extended along the second direction. Taking the use state of the refrigerating duct assembly 100 in a single-system refrigerator as an example, the air suction cavity 22 and the air supply cavity 21 are generally distributed up and down, the first direction is a vertical direction, and the second direction is a horizontal direction, that is, the air return grooves 132 may extend and be distributed along the horizontal direction. But is not limited thereto.

In some embodiments, the refrigerated air duct assembly 100 can further include a first damper for closing the first return air opening 112. When the refrigerating chamber needs to be refrigerated, the low-temperature gas blown out by the refrigerating air outlet 111 replaces the gas with higher temperature in the refrigerating chamber, and the gas in the refrigerating chamber can return to the air inlet end of the evaporator through the second air return port by closing the first air door 112, so that the gas with higher temperature in the refrigerating chamber is prevented from being blown into the refrigerating chamber again without heat exchange, and the refrigerating speed of the refrigerating chamber can be increased. It should be noted that, when the first air return opening 112 includes the first sub air return opening 112a and the second sub air return opening 112b, each of the first sub air return opening 112a and each of the second sub air return openings 112b may be correspondingly provided with a first air door.

When the refrigeration air duct assembly 100 provided by the application is applied to a single-system refrigerator, when the refrigeration chamber of the single-system refrigerator needs refrigeration, the second air door arranged on the air path communicated with the refrigeration air duct 20 can be opened, and the air door corresponding to the refrigeration air outlet and the first air door corresponding to the first air return port 112 are closed, so that the evaporator, the refrigeration fan and the refrigeration fan 30 are started, and thus, low-temperature gas after heat exchange with the evaporator can be conveyed into the refrigeration chamber through the refrigeration air outlet 111 in a concentrated manner, and refrigeration of the refrigeration chamber is realized.

After the refrigerating chamber is refrigerated, in the use process of a user, in order to ensure that the gas with higher temperature and the gas with lower temperature in the refrigerating chamber can be uniformly mixed, the second air door and the air door corresponding to the second air return opening can be closed, the first air door is opened, of course, when the refrigerating fan and the evaporator are shut down, the air door corresponding to the second air return opening can not be closed, then the refrigerating fan 30 is started, and the self circulation of the gas in the refrigerating chamber can be realized.

The refrigeration air duct assembly 100 provided by the application is applied to a single-system refrigerator, and the refrigeration air duct assembly 100 comprises a refrigeration air duct plate 10 and a fan. The cooling duct board 10 has a cooling air outlet 111 and a cooling duct 20. The refrigerating duct 20 has an air supply chamber 21 and an air suction chamber 22. The air supply chamber 21 communicates with the refrigeration outlet 111. The suction cavity 22 is used for communicating with the air outlet end of the refrigerating fan 30. The refrigerating fan 30 is disposed between the air supply chamber 21 and the air suction chamber 22. The refrigerating fan 30 is used for blowing air of the air suction cavity 22 to the air supply cavity 21. The application provides a cold-stored wind channel subassembly 100 is through setting up cold-stored fan 30 in cold-stored wind channel 20, when the freezer needs refrigeration, cold-stored fan 30 can inhale cold-stored wind channel 20 with the low temperature gas of freezing fan air-out end for the diffusion rate of low temperature gas to cold-stored wind channel 20 to can improve the refrigeration rate of freezer. And through setting up first return air inlet 112, can realize the self-loopa of cold-stored room gas, guarantee the gaseous evenly distributed of different temperatures in the cold-stored room, improve the homogeneity of temperature in the cold-stored room, improve the cold-stored storage quality of cold-stored room.

In another embodiment of the present application, an air duct system is also provided. The air duct system includes a chilled air duct assembly, a connection assembly, and a refrigerated air duct assembly 100 of any of the embodiments described above. The refrigeration air duct assembly comprises a refrigeration air duct plate and a refrigeration fan. The freezing air duct plate is used for forming a freezing air duct. The freezing air duct can be provided with an air inlet cavity and an air outlet cavity. The refrigerating fan is arranged in the refrigerating air duct and is positioned between the air inlet cavity and the air outlet cavity. The air inlet end of the refrigerating fan faces the air inlet cavity, and the air outlet end of the refrigerating fan faces the air outlet cavity. The evaporator is generally arranged in an air inlet cavity of the freezing air cavity, so that the air outlet end of the evaporator faces the air outlet cavity, and low-temperature gas after heat exchange with the evaporator is blown from the air inlet cavity to the air outlet cavity by the freezing fan. The connection assembly is used to communicate the refrigeration air duct 20 formed by the refrigeration air duct and the refrigeration air duct 20. That is, the air outlet chamber of the freezing air duct is communicated with the air suction chamber 22 of the refrigerating air duct 20, and the second return air opening on the refrigerating air duct board 10 in the refrigerating air duct assembly 100 is communicated with the air inlet chamber of the freezing air duct. The air outlet cavity of the freezing air duct is communicated with the air suction cavity 22 of the refrigerating air duct 20, so that low-temperature air in the air outlet cavity can be diffused to the air suction cavity 22. The second return air port on the cold air duct plate 10 in the cold air duct assembly 100 communicates with the air intake cavity of the cold air duct to allow the air in the cold air chamber to flow back to the air intake cavity of the cold air duct for heat exchange with the evaporator in the air intake cavity. The specific structure of the connection assembly is not limited herein, for example, in some embodiments, the connection assembly may include a connection tube.

In some embodiments, a second damper is provided between the air outlet end of the freezer fan and the air inlet end of the refrigeration fan 30 in the refrigeration channel assembly 100. The second damper is used to block communication between the freezer tunnel and the refrigeration tunnel 20. The specific location of the second damper is not limited in this application, for example, the second damper may be disposed in a channel in the connection assembly for connecting the air outlet chamber of the refrigeration air duct and the air suction chamber 22 of the refrigeration air duct 20. But is not limited thereto.

The air duct system that this application provided sets up the second air door through between the air-out end of freezing fan and the air inlet end of the cold-stored fan 30 in the cold-stored wind channel subassembly 100, when the freezer of single system refrigerator needs to refrigerate, can close the second air door, avoids low temperature gas to cool down wind channel 20 diffusion, makes low temperature gas concentrate to the freezer diffusion. In addition, after the second damper is closed, the refrigerating fan 30 is started, and the air in the refrigerating chamber can be circulated automatically.

The air duct system provided in the application adopts all the technical schemes of all the embodiments of the above-mentioned refrigerating air duct assembly 100, so that the air duct system at least has all the beneficial effects brought by the technical schemes of the above-mentioned embodiments, and will not be described in detail herein.

In another embodiment of the present application, a refrigerator is also provided. The refrigerator is a single system refrigerator that includes the air duct system of the above embodiments or includes the refrigeration air duct assembly 100 of the above embodiments.

The foregoing description is only the embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.

Claims (12)

1. The utility model provides a cold-stored wind channel subassembly, is applied to single system refrigerator, single system refrigerator has freezer and freezer, be provided with evaporimeter and freezing fan in the freezing wind channel that the freezer corresponds, freezing fan be used for with low temperature gas after the evaporimeter heat transfer blows out, cold-stored wind channel subassembly is used for with low temperature gas carries to the freezer, its characterized in that, cold-stored wind channel subassembly includes:

the refrigerating air duct plate is provided with a refrigerating air outlet and a refrigerating air duct, the refrigerating air duct is provided with an air supply cavity and an air suction cavity, the air supply cavity is communicated with the refrigerating air outlet, and the air suction cavity is used for communicating an air outlet end of the refrigerating fan;

the refrigerating fan is arranged between the air supply cavity and the air suction cavity and is used for blowing air in the air suction cavity to the air supply cavity.

2. The refrigerated air duct assembly of claim 1, wherein the refrigerated air duct plate further has:

and the first air return opening is used for returning the air in the refrigerating chamber to the air suction cavity.

3. The refrigerated air duct assembly of claim 2, wherein the refrigerated air duct plate has opposed first and second sides;

the first return air inlet includes:

the first sub-return air inlet is positioned at the first side;

and the second sub-return air inlet is positioned at the second side.

4. The refrigerated air duct assembly of claim 2, further comprising:

and the first air door is used for closing the first air return opening.

5. The refrigerated air duct assembly of any of claims 1-4, wherein the refrigerated air outlets comprise a number of first air outlets and a number of second air outlets;

the air supply cavity comprises:

the first air passages are communicated with the first air outlets;

and the second air passages are communicated with the second air outlets.

6. The refrigerated air duct assembly of claim 5, wherein the refrigerated air duct plate has opposed first and second sides;

at least one first air outlet is positioned on the first side; at least one second air outlet is positioned at the second side.

7. The refrigerated air duct assembly of claim 1, wherein the refrigerated air duct plate comprises:

the air duct cover plate is positioned at one side of the refrigerating air duct plate, which faces the refrigerating chamber;

the heat preservation cover plate is positioned at one side of the refrigerating air duct plate, which is used for deviating from the refrigerating chamber;

the heat preservation layer is provided with a runner groove which is positioned between the air duct cover plate and the heat preservation cover plate, and the runner groove is used for forming the refrigerating air duct.

8. The refrigerated air duct assembly of claim 7, wherein when the refrigerated air duct panel has a first return air opening, the flow channel slot comprises:

and the return air groove is communicated with the air suction cavity.

9. The refrigerated air duct assembly of claim 8, wherein the direction from the suction plenum to the supply plenum is a first direction, a second direction is perpendicular to the first direction, and the return air duct extends along the second direction.

10. An air duct system, comprising:

the refrigerating air duct assembly comprises a refrigerating air duct plate and a refrigerating fan, wherein the refrigerating air duct plate is used for forming a refrigerating air duct, and the refrigerating fan is arranged in the refrigerating air duct;

the refrigerated air duct assembly of any of claims 1-9; and

and the connecting assembly is used for communicating the refrigerating air duct formed by the refrigerating air duct assembly and the refrigerating air duct.

11. The air duct system of claim 10, wherein a second damper is disposed between the air outlet end of the freezer fan and the air inlet end of the refrigeration fan in the refrigeration duct assembly, the second damper being configured to block communication between the freezer air duct and the refrigeration air duct.

12. A refrigerator comprising the air duct system of any one of claims 10-11 or comprising the refrigerated air duct assembly of any one of claims 1-9.

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