CN113739494A - Air duct structure and refrigerator - Google Patents
Air duct structure and refrigerator Download PDFInfo
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- CN113739494A CN113739494A CN202111081088.0A CN202111081088A CN113739494A CN 113739494 A CN113739494 A CN 113739494A CN 202111081088 A CN202111081088 A CN 202111081088A CN 113739494 A CN113739494 A CN 113739494A
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- air return
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- 238000007710 freezing Methods 0.000 claims abstract description 49
- 230000008014 freezing Effects 0.000 claims abstract description 49
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention relates to the technical field of refrigerators, and provides an air duct structure and a refrigerator, wherein the air duct structure comprises a first air return duct cover and a second air return duct cover, and the first air return duct cover is arranged at the joint of a refrigerating chamber and a freezing chamber of the refrigerator and is connected with the refrigerating chamber and the freezing chamber; the second air return channel cover is arranged on the back plate of the refrigerator and connected with the back plate, and the vertical length of the second air return channel cover is greater than that of the first air return channel cover; and a first return air duct is arranged between the second return air duct cover and the first return air duct cover and between the second return air duct cover and the box container of the freezing chamber, a first air inlet and a first air outlet which are communicated with the first return air duct are respectively arranged at two ends of the first return air duct, the first air inlet is communicated with the refrigerating chamber, and the first air outlet is communicated with the freezing chamber. The invention provides an air duct structure, wherein the size of a first air return duct cover is smaller, and a first air return duct between a refrigerating chamber and a freezing chamber is mainly formed between a second air return duct cover and a box liner, so that the number of layers of the air return duct cover is reduced, and the accommodating space of the freezing chamber is increased.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an air duct structure and a refrigerator.
Background
With the general improvement of the living standard of people, the refrigerator gradually becomes a living necessity of most families, the refrigerator is generally provided with a refrigerating chamber and a freezing chamber to meet the preservation or preservation requirements of different articles, and meanwhile, the refrigerator is also provided with an air return duct for cold air circulation. However, the return duct formed in the prior art is formed between two return duct covers, which occupies more volume of the refrigerator.
Disclosure of Invention
The invention aims to provide an air duct structure and a refrigerator, and aims to solve the technical problem that an air return duct formed in the prior art is formed between two layers of air return duct covers, and occupies more volume of the refrigerator.
In order to achieve the purpose, the invention adopts the technical scheme that:
in one aspect, the present invention provides an air duct structure, including:
the first air return channel cover is arranged at the joint of a refrigerating chamber and a freezing chamber of the refrigerator and is connected with the refrigerating chamber and the freezing chamber;
the second air return channel cover is arranged on a back plate of the refrigerator and connected with the back plate, and the vertical length of the second air return channel cover is greater than that of the first air return channel cover;
the second return air duct cover with first return air duct cover with be equipped with first return air duct between the case courage of freezer, the both ends in first return air duct be equipped with respectively with first air intake and the first air outlet of first return air duct intercommunication, first air intake with the walk-in intercommunication, first air outlet with the freezer intercommunication.
According to the air duct structure, the width of the first air return duct is gradually increased from one end close to the first air inlet to one end close to the first air outlet, and the width of the first air outlet is equal to the width of the box liner.
According to the above air duct structure, the first air return duct includes:
the first air return channel section is arranged between the second air return channel cover and the first air return channel cover, and the first air return channel section is communicated with the first air inlet;
and the second air return channel section is arranged between the second air return channel cover and the box liner, the second air return channel section is communicated with the first air outlet, and the first air return channel section is communicated with the second air return channel section.
According to the air duct structure, the width of the first air return duct section is gradually increased from one end close to the first air inlet to one end close to the second air return duct section.
According to the air duct structure, the second air return duct section is in a right trapezoid shape, the width of the second air return duct section is gradually increased from one end close to the first air return duct section to one end close to the first air outlet, and the width of the channel opening of the second air return duct section close to one end of the first air outlet is equal to the width of the first air outlet.
According to the air duct structure, the first air return duct cover is provided with at least one first reinforcing convex rib, and the first reinforcing convex rib is positioned in the first air return duct section;
and/or the second air return channel cover is provided with at least one second reinforcing convex rib, and the second reinforcing convex rib is positioned in the second air return channel section.
According to the air duct structure, a second air return duct is arranged between the first air return duct cover and the second air return duct cover, a second air inlet and a second air outlet which are communicated are respectively arranged at two ends of the second air return duct, the second air inlet is communicated with the freezing chamber, and the second air outlet is communicated with the refrigerating chamber.
According to the air duct structure, the outer surface of the first air return duct cover is wrapped with a first sponge layer;
and/or the outer surface of the second return air duct cover is wrapped with a second sponge layer.
On the other hand, the invention also provides a refrigerator which comprises a refrigerating chamber and a freezing chamber, and the refrigerator also comprises the air duct structure.
According to the refrigerator, the refrigerator further comprises a fan, and the fan is arranged in the freezing chamber.
The air duct structure and the refrigerator provided by the invention have the beneficial effects that at least:
according to the air duct structure and the refrigerator provided by the invention, the first air return duct cover is only arranged at the joint of the refrigerating chamber and the freezing chamber, the size is smaller, the material is saved, the vertical length of the second air return duct cover is set to be larger than that of the first air return duct cover, the first air return duct between the refrigerating chamber and the freezing chamber is mainly formed between the second air return duct cover and the refrigerator liner, the number of layers of the air return duct cover is reduced, the occupied size of the refrigerator is reduced, the accommodating space of the freezing chamber is increased, the overall structure is simple, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a first schematic sectional view of a refrigerator according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
fig. 3 is a first schematic structural diagram of a refrigerator according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
fig. 5 is a schematic structural diagram of an air duct structure according to an embodiment of the present invention;
FIG. 6 is an exploded view of an air duct structure according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a first return duct cover according to an embodiment of the present invention;
fig. 8 is a second schematic structural diagram of a refrigerator according to an embodiment of the present invention;
FIG. 9 is an enlarged view of the portion C of FIG. 8;
fig. 10 is a schematic cross-sectional structure diagram ii of a refrigerator according to an embodiment of the present invention;
fig. 11 is an enlarged schematic view of a portion D in fig. 10.
Wherein, in the figures, the respective reference numerals:
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1 and 2, the present embodiment provides an air duct structure 100, which includes a first air return duct cover 10 and a second air return duct cover 20; the first air return duct cover 10 is configured to be disposed at an intersection of the refrigerating chamber 200 and the freezing chamber 300 of the refrigerator 1000 and connected to the refrigerating chamber 200 and the freezing chamber 300 (see fig. 3 and 4 in combination); the second return duct cover 20 is disposed on the back panel 400 of the refrigerator 1000 and connected to the back panel 400, and the vertical length of the second return duct cover 20 is greater than the vertical length of the first return duct cover 10 (please refer to fig. 5 and 6); a first air return duct 30 is arranged between the second air return duct cover 20 and the first air return duct cover 10 and the box container 301 of the freezing chamber 300, a first air inlet 40 and a first air outlet 50 which are communicated with the first air return duct 30 are respectively arranged at two ends of the first air return duct 30, the first air inlet 40 is communicated with the refrigerating chamber 200, and the first air outlet 50 is communicated with the freezing chamber 300.
The working principle of the air duct structure 100 provided by the embodiment is as follows:
in the air duct structure 100 provided by this embodiment, the first air duct cover 10 is only disposed at the joint of the refrigerating compartment 200 and the freezing compartment 300, the size is small, the first air duct cover 10 is disposed to prevent air from entering between the refrigerating compartment 200 and the freezing compartment 300, and the vertical length of the second air duct cover 20 is set to be greater than that of the first air duct cover 10, the first air duct 30 between the refrigerating compartment 200 and the freezing compartment 300 is mainly formed between the second air duct cover 20 and the cabinet container 301, in practical application, air in the refrigerating compartment 200 enters the first air duct 30 through the first air inlet 40, and then air comes out from the first air outlet 50 and enters into the freezing compartment 300. Compared with the prior art, the number of used layers of the return duct cover is reduced, the first return duct cover 10 with small size, the box liner 301 and the second return duct cover 20 are directly matched to form the first return duct 30, the occupation of the size of the refrigerator 1000 is reduced, and the accommodating space of the freezing chamber 300 is further increased.
The air duct structure 100 provided by the embodiment has at least the following beneficial effects:
the air duct structure 100 provided by the embodiment, only set up first return air duct cover 10 in the handing-over department of freezer 300 and cold storage room 200, the size is less, save the material, and set up the vertical length of second return air duct cover 20 to be greater than the vertical length of first return air duct cover 10, first return air duct 30 between cold storage room 200 and freezer 300 is mainly formed between second return air duct cover 20 and case courage 301, the number of layers of return air duct cover is used, thereby the occupation of the volume of refrigerator 1000 has been reduced, the accommodating space of freezer 300 has been increased, and the overall structure is simple, and the cost is saved.
In a preferred embodiment, referring to fig. 5 and 3, the width a of the first air return duct 30 gradually increases from the end close to the first air inlet 40 to the end close to the first air outlet 50, and the width b of the first air outlet 50 is equal to the width c of the cabinet container 301.
The width a of the first air return duct 30 is gradually increased from one end of the first air inlet 40 to one end of the first air outlet 50, so that the uniformity of the air entering the freezing chamber 300 is improved, and the frosting in the freezing chamber 300 is uniform. Further, the width b of the first air outlet 50 is set to be equal to the width c of the inside of the cabinet container 301, so that frost formation in the refrigerating compartment 200 is more uniform.
In a preferred embodiment, referring to fig. 2, the first air return duct 30 includes a first air return duct section 31 and a second air return duct section 32;
the first air return channel section 31 is arranged between the second air return channel cover 20 and the first air return channel cover 10, and the first air return channel section 31 is communicated with the first air inlet 40; the second air return channel section 32 is arranged between the second air return channel cover 20 and the box liner 301, the second air return channel section 32 is communicated with the first air outlet 50, and the first air return channel section 31 is communicated with the second air return channel section 32.
In practical applications, air in the refrigerating compartment 200 enters the first air return duct section 31 through the first air inlet 40, air entering the first air return duct section 31 exits from the first air return duct section 31 and enters the second air return duct section 32, and air entering the second air return duct section 32 exits from the first air outlet 50 and enters the freezing compartment 300.
The vertical length of the second return air duct cover 20 is set to be greater than that of the first return air duct cover 10, the second return air duct section 32 serves as a main return air duct, and the second return air duct section is formed between the direct second return air duct section 32 and the box liner 301, so that the number of layers of the return air duct cover is reduced, the size of the refrigerator 1000 is reduced, and the accommodating space of the freezing chamber 300 is increased.
In a preferred embodiment, the width of the first air returning section 31 gradually increases from the end near the first air inlet 40 to the end near the second air returning section 32. The uniformity of gas entering the first air return channel section 31 is improved by the arrangement, and then the uniformity of gas entering the freezing chamber 300 is improved, so that the frosting in the freezing chamber 300 is uniform.
In a preferred embodiment, referring to fig. 2, the second air returning section 32 is shaped like a right trapezoid, the width of the second air returning section 32 gradually increases from the end close to the first air returning section 31 to the end close to the first air outlet 50, and the width of the passage opening 321 of the second air returning section 32 close to the first air outlet 50 is equal to the width b of the first air outlet 50. This arrangement improves the uniformity of the gas entering the freezing chamber 300, thereby making the frost formation in the refrigerating chamber 200 uniform.
In a preferred embodiment, referring to fig. 5 and 7, the first air return duct cover 10 is provided with at least one first reinforcing rib 11, and the first reinforcing rib 11 is located in the first air return duct section 31; and/or, the second return air duct cover 20 is provided with at least one second reinforcing convex rib 21, and the second reinforcing convex rib is arranged in the second return air duct section. The first reinforcing ribs 11 can increase the overall strength of the first air return channel cover 10, so that the first air return channel cover 10 is prevented from being damaged by pressure, and the first reinforcing ribs 11 cannot obstruct the flow of gas. The second reinforcing ribs 21 can increase the overall strength of the second return air duct cover 20, so that the second return air duct cover 20 is prevented from being crushed, and the second reinforcing ribs 21 do not obstruct the flow of gas.
Optionally, the number of the first reinforcing ribs 11 is two, and the two first reinforcing ribs 11 are arranged in parallel at intervals. It should be understood that the number and the arrangement position of the first reinforcing ribs 11 are not limited to the above-mentioned case, and other cases are also possible, and are not limited herein.
Optionally, the number of the second reinforcing ribs 21 is three, and the three second reinforcing ribs 21 are arranged in parallel at intervals. It should be understood that the number and the arrangement position of the second reinforcing ribs 21 are not limited to the above-mentioned case, and other cases are also possible, and are not limited herein.
Optionally, the first air inlet 40 is obliquely arranged, so that air in the refrigerating compartment 200 can enter the first air inlet 40 more quickly and effectively.
In a preferred embodiment, referring to fig. 8 to 11, a second air return duct 60 is disposed between the first air return duct cover 10 and the second air return duct cover 20, two ends of the second air return duct 60 are respectively provided with a second air inlet 70 and a second air outlet 80 which are communicated, the second air inlet 70 is communicated with the freezing chamber 300, and the second air outlet 80 is communicated with the refrigerating chamber 200, so that the second air return duct 60 is formed simply. In practical applications, the gas in the refrigerating compartment 200 enters the first air return duct 30 through the first air inlet 40, and then the gas exits from the first air outlet 50 and enters the freezing compartment 300, and the gas in the freezing compartment 300 enters the second air return duct 60 through the second air inlet 70 and then enters the refrigerating compartment 200 through the second air outlet 80, so as to form a circulation loop.
In a preferred embodiment, the outer surface of the first air return channel cover 10 is wrapped with a first sponge layer (not shown, the same applies below); and/or, the outer surface of the second air return channel cover 20 is wrapped with a second sponge layer (not shown in the figure, the same applies below).
Since the first and second return duct covers 10 and 20 are made of foam, such as Polystyrene foam (EPS), and the first and second sponge layers are respectively wrapped on the outer surfaces of the first and second return duct covers 10 and 20, it is possible to effectively prevent the foam from leaking.
Optionally, the first and second return duct covers 10 and 20 are press-coupled to the refrigerating compartment 200 and the freezing compartment 300, respectively, so that the sealing performance of the formed first and second return ducts 30 and 60 is ensured.
The embodiment further provides a refrigerator 1000, which includes a refrigerating chamber 200 and a freezing chamber 300, and the refrigerator 1000 further includes the air duct structure 100 described above. Since the air duct structure 100 has been described in detail above, it will not be described in detail here.
In a preferred embodiment, the refrigerator 1000 further comprises a blower (not shown, the same applies below) disposed in the freezing compartment 300, and the blower is disposed to facilitate the circulation of the gas.
In summary, the present embodiment provides an air duct structure 100, which includes a first air return duct cover 10 and a second air return duct cover 20; the first air return duct cover 10 is configured to be disposed at an intersection of the refrigerating chamber 200 and the freezing chamber 300 of the refrigerator 1000 and connected to the refrigerating chamber 200 and the freezing chamber 300 (see fig. 3 and 4 in combination); the second return duct cover 20 is disposed on the back panel 400 of the refrigerator 1000 and connected to the back panel 400, and the vertical length of the second return duct cover 20 is greater than the vertical length of the first return duct cover 10 (please refer to fig. 5 and 6); a first air return duct 30 is arranged between the second air return duct cover 20 and the first air return duct cover 10 and the box container 301 of the freezing chamber 300, a first air inlet 40 and a first air outlet 50 which are communicated with the first air return duct 30 are respectively arranged at two ends of the first air return duct 30, the first air inlet 40 is communicated with the refrigerating chamber 200, and the first air outlet 50 is communicated with the freezing chamber 300. The embodiment further provides a refrigerator 1000, which includes a refrigerating chamber 200 and a freezing chamber 300, and the refrigerator 1000 further includes the air duct structure 100 described above. The air duct structure 100 and the refrigerator 1000 provided by the embodiment, only set up the first air return duct cover 10 at the handing-over department of the refrigerating chamber 200 and the freezing chamber 300, the size is small, the material is saved, and set up the vertical length of the second air return duct cover 20 to be greater than the vertical length of the first air return duct cover 10, the first air return duct 30 between the refrigerating chamber 200 and the freezing chamber 300 is mainly formed between the second air return duct cover 20 and the cabinet container 301, the number of layers of the air return duct cover is reduced, thereby the occupation of the volume of the refrigerator 1000 is reduced, the accommodating space of the freezing chamber 300 is increased, the whole structure is simple, and the cost is saved.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An air duct structure, comprising:
the first air return channel cover is arranged at the joint of a refrigerating chamber and a freezing chamber of the refrigerator and is connected with the refrigerating chamber and the freezing chamber;
the second air return channel cover is arranged on a back plate of the refrigerator and connected with the back plate, and the vertical length of the second air return channel cover is greater than that of the first air return channel cover;
the second return air duct cover with first return air duct cover with be equipped with first return air duct between the case courage of freezer, the both ends in first return air duct be equipped with respectively with first air intake and the first air outlet of first return air duct intercommunication, first air intake with the walk-in intercommunication, first air outlet with the freezer intercommunication.
2. The air duct structure according to claim 1, wherein a width of the first air return duct gradually increases from an end close to the first air inlet to an end close to the first air outlet, and the width of the first air outlet is equal to a width of the tank container.
3. The air duct structure according to claim 2, characterized in that the first return air duct includes:
the first air return channel section is arranged between the second air return channel cover and the first air return channel cover, and the first air return channel section is communicated with the first air inlet;
and the second air return channel section is arranged between the second air return channel cover and the box liner, the second air return channel section is communicated with the first air outlet, and the first air return channel section is communicated with the second air return channel section.
4. The air duct structure according to claim 3, wherein the width of the first air return duct section gradually increases from an end near the first air inlet to an end near the second air return duct section.
5. The air duct structure according to claim 3, wherein the second air return duct section is a right-angled trapezoidal duct section, the width of the right-angled trapezoidal duct section gradually increases from one end close to the first air return duct section to one end close to the first air outlet, and the width of the passage opening of the second air return duct section at one end close to the first air outlet is equal to the width of the first air outlet.
6. The air duct structure according to claim 3, wherein the first air return duct cover is provided with at least one first reinforcing rib, and the first reinforcing rib is located in the first air return duct section;
and/or the second air return channel cover is provided with at least one second reinforcing convex rib, and the second reinforcing convex rib is positioned in the second air return channel section.
7. The air duct structure according to claim 1, wherein a second air return duct is provided between the first air return duct cover and the second air return duct cover, a second air inlet and a second air outlet which are communicated with each other are provided at both ends of the second air return duct, the second air inlet is communicated with the freezing chamber, and the second air outlet is communicated with the refrigerating chamber.
8. The air duct structure according to claim 1, wherein the outer surface of the first return duct cover is wrapped with a first sponge layer;
and/or the outer surface of the second return air duct cover is wrapped with a second sponge layer.
9. A refrigerator, characterized in that, comprising a refrigerating chamber and a freezing chamber, the refrigerator further comprises the air duct structure of any one of claims 1 to 8.
10. The refrigerator of claim 9, further comprising a blower fan disposed within the freezer compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111081088.0A CN113739494A (en) | 2021-09-15 | 2021-09-15 | Air duct structure and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111081088.0A CN113739494A (en) | 2021-09-15 | 2021-09-15 | Air duct structure and refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN113739494A true CN113739494A (en) | 2021-12-03 |
Family
ID=78738994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111081088.0A Pending CN113739494A (en) | 2021-09-15 | 2021-09-15 | Air duct structure and refrigerator |
Country Status (1)
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| CN (1) | CN113739494A (en) |
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| CN112696860A (en) * | 2020-12-18 | 2021-04-23 | 合肥朗驰工业设计有限公司 | Refrigerator freezing return air duct and defrosting control method thereof |
| CN213631127U (en) * | 2020-10-30 | 2021-07-06 | Tcl家用电器（合肥）有限公司 | Air-cooled refrigerator |
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2021
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| CN204115342U (en) * | 2014-04-30 | 2015-01-21 | 河南新飞制冷器具有限公司 | A kind of return airway |
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| CN112696860A (en) * | 2020-12-18 | 2021-04-23 | 合肥朗驰工业设计有限公司 | Refrigerator freezing return air duct and defrosting control method thereof |
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Application publication date: 20211203 |