CN109764604B - Refrigerator return air duct assembly and refrigerator - Google Patents
Refrigerator return air duct assembly and refrigerator Download PDFInfo
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- CN109764604B CN109764604B CN201811541235.6A CN201811541235A CN109764604B CN 109764604 B CN109764604 B CN 109764604B CN 201811541235 A CN201811541235 A CN 201811541235A CN 109764604 B CN109764604 B CN 109764604B
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- 239000011229 interlayer Substances 0.000 claims abstract description 58
- 238000009423 ventilation Methods 0.000 claims abstract description 25
- 230000008014 freezing Effects 0.000 claims description 34
- 238000007710 freezing Methods 0.000 claims description 34
- 238000005192 partition Methods 0.000 claims description 16
- 210000001503 joint Anatomy 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 239000010410 layer Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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Abstract
The invention provides a refrigerator return air duct assembly and a refrigerator, which comprise a return air duct chamber and an evaporator arranged in the return air duct chamber, wherein a pair of first side walls, which are oppositely arranged, of the return air duct chamber are respectively provided with a first evaporator cover plate and a second evaporator cover plate, the evaporator is positioned between the first evaporator cover plate and the second evaporator cover plate along the thickness direction, a first interlayer air duct is formed between the first evaporator cover plate and the first side wall connected with the first evaporator cover plate, a second interlayer air duct is formed between the second evaporator cover plate and the first side wall connected with the second evaporator cover plate, and the return air duct chamber is respectively provided with a refrigerated first return air inlet communicated with the first interlayer air duct, a refrigerated return air inlet and a refrigerated second return air inlet communicated with the second interlayer air duct; and a plurality of ventilation openings which are arranged at intervals along the air flow direction are symmetrically arranged on the first evaporator cover plate and the second evaporator cover plate. The invention can fully exchange heat and improve the heat exchange efficiency.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator air return channel assembly and a refrigerator.
Background
The return air inlet of the existing evaporator is arranged below the evaporator cavity, the air flow direction is parallel to the height direction of the evaporator, and the air circulation path is as follows: air in the refrigerator compartment enters the evaporator cavity from the air return opening and then flows through the evaporator along the height direction of the evaporator to the top of the evaporator.
The defects of the existing structure include the following aspects: the heat exchange temperature difference between the refrigerant and the air is gradually reduced along the height direction of the evaporator, and the heat exchange effect is reduced; if frost blockage occurs at the lower end of the evaporator, the effective flow cross section of air is reduced, and the air flow and the flow speed are both reduced; the air flow direction is along evaporimeter direction of height, and the heat exchange tube of evaporimeter has the leeward side, leads to the heat transfer insufficient, and the heat transfer effect is poor.
Disclosure of Invention
Technical problem to be solved
The present invention is directed to solving at least one of the problems of the prior art or the related art.
The invention aims to provide a refrigerator air return duct assembly and a refrigerator, so that heat exchange is sufficient, and the heat exchange efficiency is improved.
(II) technical scheme
In order to solve the technical problem, an embodiment of the present invention provides a refrigerator return air duct assembly, which includes a return air duct chamber and an evaporator disposed in the return air duct chamber, wherein a pair of first sidewalls, which are disposed opposite to the return air duct chamber, are respectively provided with a first evaporator cover plate and a second evaporator cover plate, the evaporator is located between the first evaporator cover plate and the second evaporator cover plate along a thickness direction, a first interlayer air duct is formed between the first evaporator cover plate and the first sidewall connected to the first evaporator cover plate, a second interlayer air duct is formed between the second evaporator cover plate and the first sidewall connected to the second evaporator cover plate, and the return air duct chamber is respectively provided with a refrigerated first return air inlet communicated with the first interlayer air duct, a refrigerated return air inlet communicated with the refrigerated return air duct, and a refrigerated second return air inlet communicated with the second interlayer air duct; and a plurality of ventilation openings which are arranged at intervals along the air flow direction are symmetrically arranged on the first evaporator cover plate and the second evaporator cover plate.
In the embodiment of the invention, the first evaporator cover plate and the second evaporator cover plate respectively comprise a vertical side plate and a horizontal support plate horizontally bent along the top end of the vertical side plate, and the plurality of ventilation openings are arranged at intervals along the length direction of the vertical side plate; the horizontal support plate is in butt joint with the corresponding first side wall, and two sides of the vertical side plate in the width direction are in butt joint with a pair of second side walls which are arranged oppositely to the air return duct chamber.
In an embodiment of the present invention, the pair of first side walls and the pair of second side walls are sequentially connected to form the air return duct chamber.
In the embodiment of the invention, the ventilation opening is in a strip shape extending along the width direction of the vertical side plate, and the length of the ventilation opening is matched with the effective width of the evaporator.
In the embodiment of the invention, the evaporator is a fin evaporator, the fin evaporator comprises a heat exchange tube which is arranged in an S-shaped roundabout manner and a plurality of groups of fins which vertically penetrate through the horizontal section of the heat exchange tube, the plurality of groups of fins are distributed at intervals along the horizontal section of the heat exchange tube, and the length of the ventilation opening is matched with that of the horizontal section of the heat exchange tube.
In the embodiment of the invention, the plurality of ventilation openings positioned on the same side are arranged at equal intervals.
In the embodiment of the invention, the area of the plurality of ventilation openings positioned on the same side along the air flow direction is gradually reduced from large to small.
In an embodiment of the invention, the refrigerated first air return opening and the refrigerated second air return opening are both arranged on the same second side wall facing the rear side of the refrigerator, and the frozen air return opening is positioned on the first side wall corresponding to the first interlayer air duct.
In an embodiment of the invention, the air flow directions in the first interlayer air duct and the second interlayer air duct are both parallel to the height direction of the evaporator.
In the embodiment of the invention, plugs are respectively arranged between the first evaporator cover plate and the second evaporator cover plate and on two sides of the evaporator in the width direction.
The embodiment of the invention also provides a refrigerator, which comprises a refrigerator body and an air return channel assembly of the refrigerator, wherein the refrigerator body comprises a freezing chamber and a refrigerating chamber which are separated by a middle partition plate, and the air return channel chamber is positioned in the middle partition plate.
In the embodiment of the invention, a groove with an opening facing the freezing chamber is formed in one side of the middle partition plate, which is positioned on the freezing chamber, the evaporator, the fan assembly and the air supply duct are sequentially arranged in the groove along the air flow direction, a freezing cover plate is arranged at the opening of the groove, and a space between the groove corresponding to the evaporator and the freezing cover plate forms the air return duct chamber; the first evaporator cover plate is in butt joint with the inner side face of the freezing cover plate to form the first interlayer air duct, and the second evaporator cover plate is in butt joint with the bottom face opposite to the groove opening to form the second interlayer air duct.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages:
the embodiment of the invention provides a refrigerator return air duct assembly, which comprises a return air duct chamber and an evaporator arranged in the return air duct chamber, wherein a pair of first side walls oppositely arranged in the return air duct chamber are respectively provided with a first evaporator cover plate and a second evaporator cover plate, the evaporator is positioned between the first evaporator cover plate and the second evaporator cover plate along the thickness direction of the evaporator, a first interlayer air duct is formed between the first evaporator cover plate and the first side wall connected with the first evaporator cover plate, a second interlayer air duct is formed between the second evaporator cover plate and the first side wall connected with the second evaporator cover plate, the return air duct chamber is respectively provided with a refrigerated first return air inlet and a refrigerated return air inlet communicated with the first interlayer air duct and a refrigerated second return air inlet communicated with the second interlayer air duct, and a plurality of ventilation openings which are arranged at intervals along the air flow direction are symmetrically arranged on the first evaporator cover plate and the second evaporator cover plate, the air returning from the refrigerating first air return opening and the freezing air return opening into the compartment return air in the first interlayer air channel and the compartment return air from the refrigerating second air return opening into the compartment return air in the second interlayer air channel are symmetrically and directly blown towards the evaporator from all the vent holes, the heat exchange tubes of the evaporator are circumferentially and relatively uniformly distributed, the back air side does not exist in the heat exchange tubes, the compartment return air flows out from the symmetrical vent holes in the opposite direction, the air opposite-impact circulation turbulence is strong, the heat exchange is sufficient, and the heat exchange effect is good.
In this embodiment, each compartment return air respectively enters the first interlayer air duct and the second interlayer air duct and circulates along the circulation direction, the circulation path is separated from the evaporator and is not directly contacted with the evaporator for heat exchange, so that the air circulating in the first interlayer air duct and the second interlayer air duct is in the same state, namely, the air temperature and the carried water vapor content are the same, a plurality of vent holes are symmetrically formed in the first evaporator cover plate and the second evaporator cover plate which are oppositely arranged, the air circulating in the first interlayer air duct and the second interlayer air duct in the same state is blown into each height layer in the length direction of the evaporator, the water vapor carried in the air can be more uniformly frosted on the surface of the evaporator, and the problem that the water vapor is completely concentrated at the lower end of the evaporator to cause frost blockage is solved.
This embodiment is with the compartment return air of the same state through first intermediate layer wind channel and second intermediate layer wind channel on delivering to each high layer of evaporimeter for the evaporimeter is the same and all great in each high initial heat transfer difference in temperature, thereby can strengthen the heat transfer, improves the heat transfer effect.
Drawings
FIG. 1 is a schematic perspective view of an air return duct assembly of a refrigerator without an evaporator chamber according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an air return duct assembly of a refrigerator according to an embodiment of the present invention;
FIG. 3 is a schematic view illustrating the direction of air flow in an air return duct assembly of a refrigerator according to an embodiment of the present invention;
FIG. 4 is a perspective view of a refrigerator with a freeze cover removed according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a cover plate of a refrigerator according to an embodiment of the present invention;
in the figure: 1: a refrigerating chamber; 2: a freezing chamber; 3: an air supply duct; 4: a fan assembly; 5: an evaporator; 6: a return duct chamber; 7: a first evaporator cover plate; 8: a second evaporator cover plate; 9: a first interlayer air duct; 10: a second interlayer air duct; 11: a vent; 12: refrigerating the first air return opening; 13: refrigerating the second air return opening; 14: a plug; 15: and (5) freezing an air return opening.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality", and "a plurality" mean two or more unless otherwise specified.
As shown in fig. 1, fig. 2 and fig. 5, the refrigerator return air duct assembly provided in the embodiment of the present invention includes a return air duct chamber 6 and an evaporator 5 disposed in the return air duct chamber 6, the return air duct chamber 6 includes a pair of first side walls disposed opposite to each other and a pair of second side walls disposed opposite to each other, the pair of first side walls is sequentially connected to the pair of second side walls, the pair of first side walls are respectively provided with a first evaporator cover plate 7 and a second evaporator cover plate 8, the evaporator 5 is disposed between the first evaporator cover plate 7 and the second evaporator cover plate 8 along a thickness direction thereof, a first air duct interlayer 9 is formed between the first evaporator cover plate 7 and the first side wall connected thereto, a second air duct interlayer 10 is formed between the second evaporator cover plate 8 and the first side wall connected thereto, the return air duct chamber 6 is respectively provided with a refrigerated first return air inlet 12, a refrigerated first air inlet 12, a refrigerated second air inlet 12, a refrigerated first air inlet 12, a refrigerated air outlet, A freezing air return opening 15 and a refrigerating second air return opening 13 communicated with the second interlayer air duct 10; a plurality of ventilation openings 11 which are arranged at intervals along the air flow direction are symmetrically arranged on the first evaporator cover plate 7 and the second evaporator cover plate 8; as shown in fig. 3, the compartment return air entering the first interlayer air duct 9 from the refrigerated first return air inlet 12 and the refrigerated return air inlet 15 and the compartment return air entering the second interlayer air duct 10 from the refrigerated second return air inlet 13 are symmetrically and directly blown towards the evaporator 5 from the vent holes 11, the air flow collides in opposite directions, the disturbance effect is strong, air gushes in both sides around the evaporator 5, arrows in the figure indicate the air circulation direction, the heat exchange tubes of the evaporator 5 are relatively and uniformly distributed in the circumferential direction, the heat exchange tubes do not have a leeward side, the compartment return air flows out from the symmetrical vent holes 11 in opposite directions, the air circulation turbulence is strong, the heat exchange is sufficient, and the heat exchange effect is good.
In this embodiment, the return air of each compartment respectively enters the first interlayer air duct 9 and the second interlayer air duct 10 to circulate along the flow direction, the flow path is separated from the evaporator 5 and does not directly contact with the evaporator 5 for heat exchange, so that the air circulating in the first interlayer air duct 9 and the second interlayer air duct 10 is in the same state, that is, the air temperature and the carried water vapor content are the same, a plurality of air vents are symmetrically arranged on the first evaporator cover plate 7 and the second evaporator cover plate 8 which are oppositely arranged, the air circulating in the same state in the first interlayer air duct 9 and the second interlayer air duct 10 is blown into each height layer in the length direction of the evaporator 5, the water vapor carried in the air can be more uniformly frosted on the surface of the evaporator 5, and the problem of sudden air volume reduction caused by the fact that the water vapor is completely concentrated at the lower end of the evaporator 5 to form frost plug is solved.
In this embodiment, the first interlayer air duct 9 and the second interlayer air duct 10 are both parallel to the height direction of the evaporator 5, so that the air flowing direction of the compartment return air entering the first interlayer air duct 9 and the second interlayer air duct 10 is ensured to be parallel to the evaporator 5, and the circulated air can flow to each height layer in the length direction of the evaporator 5 and blow to each height layer of the evaporator 5 through the ventilation opening 11.
This embodiment sends the compartment return air of the same state to 5 each high layers of evaporimeter through first intermediate layer wind channel 9 and second intermediate layer wind channel 10 on for 5 each high initial heat transfer difference in temperature is the same and all great, thereby can strengthen the heat transfer, improves the heat transfer effect.
In the embodiment of the present invention, each of the first evaporator cover plate 7 and the second evaporator cover plate 8 includes a vertical side plate and a horizontal support plate horizontally bent along a top end of the vertical side plate, and the cross-sectional shape of the support plate is an inverted L shape, and the plurality of ventilation openings 11 are arranged at intervals along a length direction of the vertical side plate; the horizontal support plate is in butt joint with the corresponding first side wall, the two sides of the vertical side plate along the width direction are in butt joint with the pair of second side walls, and a space enclosed between the horizontal support plate and the vertical side plate and between the connected first side wall and the second side wall forms the first interlayer air duct 9 and the second interlayer air duct 10.
In the embodiment of the invention, the vent 11 is in a strip shape extending along the width direction of the vertical side plate, and the length of the vent 11 is matched with the effective width of the evaporator 5 so as to ensure that the return air is fully contacted with the heat exchange surface of the evaporator 5.
In the embodiment of the invention, the evaporator 5 is a finned evaporator 5, the finned evaporator 5 comprises a heat exchange tube which is arranged in an S-shaped roundabout manner and a plurality of groups of fins which vertically penetrate through the horizontal section of the heat exchange tube, the plurality of groups of fins are distributed at intervals along the horizontal section of the heat exchange tube, the length of the ventilation opening 11 is matched with the length of the horizontal section of the heat exchange tube, the horizontal section of the heat exchange tube with the distributed fins is the effective width of the evaporator 5, namely the effective width does not include the elbow part of the heat exchange tube, the fins cannot be installed at the position, and in order to ensure sufficient heat exchange, the length of the ventilation opening 11 does not need to consider the elbow.
In the embodiment of the present invention, in order to ensure that the compartment return air is uniformly blown to the evaporator 5, the plurality of ventilation openings 11 located on the same side are arranged at equal intervals.
In the embodiment of the invention, the area of the plurality of ventilation openings 11 along the air flow direction is gradually reduced from large to small, so that the area of the ventilation openings 11 is ensured to correspond to the area of the evaporator 5 through which return air flows, poor heat exchange and short circuit of the return air are prevented, and hot air which does not perform sufficient heat exchange with the evaporator 5 is prevented from directly returning to a refrigerator compartment.
In the embodiment of the present invention, for convenience of installation and good privacy, the refrigerated first air return opening 12 and the refrigerated second air return opening 13 are both disposed on the same second sidewall facing the rear side of the refrigerator, and the freezing air return opening 15 is located on the first sidewall corresponding to the first interlayer air duct 9.
In the embodiment of the invention, the plugs 14 are respectively arranged between the first evaporator cover plate 7 and the second evaporator cover plate 8 and on two sides of the evaporator 5 in the width direction, and by arranging the plugs 14, the flow direction of the intake air is forcibly changed when the intake air passes through the plugs 14, and the intake air enters the fins of the evaporator 5 for heat exchange, so that the air is prevented from directly circulating from the elbow parts without fins on the left side and the right side of the evaporator 5 to cause poor heat exchange effect.
As shown in fig. 4 and 5, an embodiment of the present invention further provides a refrigerator, including a box body, where the box body includes a freezing chamber 2 and a refrigerating chamber separated by a middle partition plate, and the refrigerator air return duct assembly according to the above technical solution, where the air return duct chamber 6 is disposed in the middle partition plate, the middle partition plate is hollow, and a space corresponding to the evaporator 5 in the middle partition plate is the air return duct chamber 6. The compartment return air entering the first interlayer air duct 9 in the middle partition plate from the refrigeration first return air inlet 12 and the refrigeration return air inlet 15 and the compartment return air entering the second interlayer air duct 10 in the middle partition plate from the refrigeration second return air inlet 13 are symmetrically and directly blown towards the evaporator 5 from the vent holes 11 on the side where the compartment return air is, the direction of the airflow blown towards the evaporator 5 is perpendicular to the length direction of the evaporator 5, the airflow collides in an opposite direction, the disturbance effect is strong, air gushes from the two sides of the periphery of the evaporator 5, the heat exchange tubes of the evaporator 5 are relatively and uniformly distributed in the circumferential direction, the heat exchange tubes are not provided with a leeward side, the compartment return air flows out from the symmetrical vent holes 11 simultaneously in the opposite direction, the air has strong turbulence in the opposite direction, the heat exchange is sufficient, and the.
In the embodiment of the invention, specifically, in order to facilitate the installation of components such as an evaporator 5 in a cavity of a middle partition plate, a groove with an opening facing the freezing chamber 2 is formed in one side of the freezing chamber 2 of the middle partition plate, the evaporator 5, a fan component 4 and an air supply duct 3 are sequentially arranged in the groove along the air flow direction, a freezing cover plate is arranged at the opening of the groove, the freezing cover plate forms a first side wall of the air return duct chamber, a plurality of freezing air return ports 15 are arranged at intervals along the bottom of the freezing cover plate, so that the freezing chamber returns air uniformly, and a space between the groove corresponding to the evaporator 5 and the freezing cover plate forms the air return duct chamber 6; the first evaporator cover plate 7 is in butt joint with the inner side face of the freezing cover plate to form the first interlayer air duct 9, the second evaporator cover plate 8 is in butt joint with the bottom face opposite to the groove opening to form the second interlayer air duct 10, compartment return air after full heat exchange with the evaporator 5 is sent into the air supply air duct 3 through the fan assembly 4, the air supply air duct 3 is arranged in layers from the air outlet of the fan assembly 4 and is divided into a freezing air duct and a cold storage air duct, the freezing air duct is communicated with the freezing air outlet, the cold storage air duct is communicated with the cold storage air outlet, and the cold storage duct and the freezing chamber 2 are respectively cooled through the cold storage air duct and the freezing air duct according to the cold demand of the freezing chamber and the refrigerating chamber 2, so that.
The embodiment shows that the compartment return air flows out from the symmetrical ventilation openings in opposite directions, the air has strong turbulence to the impact circulation, the heat exchange is sufficient, and the heat exchange effect is good; in addition, the compartment return air in the same state is delivered to each high layer of the evaporator through the first interlayer air channel and the second interlayer air channel, so that the initial heat exchange temperature difference on each height of the evaporator is the same and large, the heat exchange can be enhanced, and the heat exchange effect is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (12)
1. A return air duct assembly of a refrigerator is characterized by comprising a return air duct chamber and an evaporator arranged in the return air duct chamber, the air return duct cavity is arranged in a middle partition board which is hollow, the space corresponding to the evaporator in the middle partition board is the air return duct cavity, a pair of first side walls which are arranged oppositely to the air return duct chamber are respectively provided with a first evaporator cover plate and a second evaporator cover plate, the evaporator is located between the first evaporator cover plate and the second evaporator cover plate in the thickness direction, a first interlayer air duct is formed between the first evaporator cover plate and the first side wall connected with the first evaporator cover plate, a second interlayer air duct is formed between the second evaporator cover plate and the first side wall connected with the second evaporator cover plate, the air return duct chamber is respectively provided with a refrigerated first air return opening and a refrigerated second air return opening which are communicated with the first interlayer air duct and the second interlayer air duct; and a plurality of ventilation openings which are arranged at intervals along the air flow direction are symmetrically arranged on the first evaporator cover plate and the second evaporator cover plate.
2. The air return duct assembly of the refrigerator as claimed in claim 1, wherein the first evaporator cover plate and the second evaporator cover plate each comprise a vertical side plate and a horizontal support plate horizontally bent along a top end of the vertical side plate, and the plurality of ventilation openings are arranged at intervals along a length direction of the vertical side plate; the horizontal support plate is in butt joint with the corresponding first side wall, and two sides of the vertical side plate in the width direction are in butt joint with a pair of second side walls which are arranged oppositely to the air return duct chamber.
3. The return air duct assembly for a refrigerator according to claim 2, wherein a pair of the first side walls and a pair of the second side walls are connected in series to define the return air duct chamber.
4. The air return duct assembly of the refrigerator as claimed in claim 2, wherein the ventilation opening is in a shape of a long strip extending along the width direction of the vertical side plate, and the length of the ventilation opening is matched with the effective width of the evaporator.
5. The air return duct assembly of the refrigerator as claimed in claim 4, wherein the evaporator is a finned evaporator, the finned evaporator comprises a heat exchange tube arranged in an S-shaped circuitous manner and a plurality of groups of fins vertically penetrating through the horizontal section of the heat exchange tube, the plurality of groups of fins are distributed at intervals along the horizontal section of the heat exchange tube, and the length of the ventilation opening is matched with the length of the horizontal section of the heat exchange tube.
6. The return air duct assembly for a refrigerator according to claim 1, wherein the plurality of ventilation openings located at the same side are arranged at equal intervals.
7. The return air duct assembly for a refrigerator according to claim 1, wherein the area of the plurality of ventilation openings located at the same side in the air flow direction is gradually reduced from large to small.
8. The refrigerator return air duct assembly according to claim 2, wherein the refrigerated first return air opening and the refrigerated second return air opening are both provided on the same second side wall facing the rear side of the refrigerator, and the freezing return air opening is provided on the corresponding first side wall of the first interlayer air duct.
9. The return air duct assembly for a refrigerator according to claim 1, wherein the air flow directions of the first and second laminated air ducts are parallel to the height direction of the evaporator.
10. The air return duct assembly of the refrigerator as claimed in claim 1, wherein plugs are respectively disposed between the first evaporator cover plate and the second evaporator cover plate and at two sides of the evaporator in the width direction.
11. A refrigerator comprising a cabinet including a freezing chamber and a refrigerating chamber partitioned by a middle partition, characterized by further comprising the return duct assembly of the refrigerator as claimed in any one of claims 1 to 10, the return duct chamber being located in the middle partition.
12. The refrigerator as claimed in claim 11, wherein the middle partition is provided at one side of the freezing compartment with a groove having an opening facing the freezing compartment, the groove is provided therein with the evaporator, the fan assembly and the air supply duct in sequence along an air flow direction, the opening of the groove is provided with a freezing cover plate, and a space between the groove corresponding to the evaporator and the freezing cover plate forms the air return duct chamber; the first evaporator cover plate is in butt joint with the inner side face of the freezing cover plate to form the first interlayer air duct, and the second evaporator cover plate is in butt joint with the bottom face opposite to the groove opening to form the second interlayer air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541235.6A CN109764604B (en) | 2018-12-17 | 2018-12-17 | Refrigerator return air duct assembly and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541235.6A CN109764604B (en) | 2018-12-17 | 2018-12-17 | Refrigerator return air duct assembly and refrigerator |
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| Publication Number | Publication Date |
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| CN109764604A CN109764604A (en) | 2019-05-17 |
| CN109764604B true CN109764604B (en) | 2020-10-09 |
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| CN201811541235.6A Active CN109764604B (en) | 2018-12-17 | 2018-12-17 | Refrigerator return air duct assembly and refrigerator |
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| CN111664629A (en) * | 2020-06-18 | 2020-09-15 | 长虹美菱股份有限公司 | Air duct assembly and refrigerator |
| JP2022102459A (en) * | 2020-12-25 | 2022-07-07 | アクア株式会社 | refrigerator |
| CN115451636A (en) * | 2022-08-18 | 2022-12-09 | 湖北美的电冰箱有限公司 | Refrigerator and refrigerator container module |
| CN116379700B (en) * | 2023-03-30 | 2025-04-25 | 合肥华凌股份有限公司 | Refrigerator, control method, control device and storage medium |
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| CN103322748B (en) * | 2012-01-20 | 2015-02-18 | 合肥美菱股份有限公司 | Refrigerator |
| CN103017450B (en) * | 2013-01-10 | 2016-03-30 | 合肥美的电冰箱有限公司 | For refrigerator ducting assembly and there is its refrigerator |
| KR101999263B1 (en) * | 2014-07-16 | 2019-07-12 | 삼성전자주식회사 | Refrigerator |
| DE102014017799A1 (en) * | 2014-11-11 | 2016-05-12 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
| JP6571359B2 (en) * | 2015-03-24 | 2019-09-04 | 住友重機械搬送システム株式会社 | Charge / discharge inspection equipment |
| CN105716353B (en) * | 2016-02-02 | 2019-04-26 | 海信（山东）冰箱有限公司 | A kind of ducting assembly and wind cooling refrigerator of wind cooling refrigerator |
| CN205641731U (en) * | 2016-04-26 | 2016-10-12 | 青岛海尔股份有限公司 | Refrigerator |
| KR20180080052A (en) * | 2017-01-03 | 2018-07-11 | 삼성전자주식회사 | Refrigerator |
| CN108332487A (en) * | 2017-01-20 | 2018-07-27 | 松下知识产权经营株式会社 | Refrigerator |
| CN108444185A (en) * | 2018-04-10 | 2018-08-24 | 合肥美菱股份有限公司 | A kind of refrigerator and its control method with ducting assembly |
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2018
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