CN112648777A - Refrigerator return air structure - Google Patents
Refrigerator return air structure Download PDFInfo
- Publication number
- CN112648777A CN112648777A CN202110057099.9A CN202110057099A CN112648777A CN 112648777 A CN112648777 A CN 112648777A CN 202110057099 A CN202110057099 A CN 202110057099A CN 112648777 A CN112648777 A CN 112648777A
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- China
- Prior art keywords
- air
- return
- return air
- refrigerator
- duct
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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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- 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
- F25D17/067—Evaporator fan units
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
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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 discloses a refrigerator return air structure, and relates to the technical field of refrigeration equipment. The invention comprises a connecting air duct arranged in a foaming layer between a refrigerating box liner and a freezing box liner; an opening A communicated with an inlet A at the upper end of the connecting air channel is arranged at the bottom of the refrigerator container, an opening B is arranged at the top of the refrigerator container, a return air channel is arranged in the refrigerator container at the lower part of the connecting air channel, and an air outlet A at the lower end of the connecting air channel is communicated with the inlet B of the return air channel; an anti-condensation pipe is arranged on one side of the return air duct; the lower air outlet B of the air return duct is communicated with an air return joint. According to the invention, through designing the air return structure of the refrigerating chamber of the refrigerator, the refrigerating air return and the evaporator are ensured to exchange heat fully, and the effective volume of the refrigerating chamber of the refrigerator is improved.
Description
Technical Field
The invention belongs to the technical field of refrigeration equipment, and particularly relates to a refrigerator return air structure.
Background
The existing cross side-by-side combination refrigerator adopts a bottom evaporator structure, and mostly adopts a centrifugal fan or an axial flow fan to convey the cold energy of the evaporator to a freezing chamber and a refrigerating chamber. And meanwhile, a refrigerating return air duct is pre-embedded in foaming layers on two side walls of the refrigerator and is communicated with the refrigerating chamber and the evaporator bin. The hot air in the refrigerating chamber flows to the evaporator bin through the channel to be refrigerated and cooled. The design ensures that the refrigeration side wall and the freezing side wall are not influenced by the return air duct to cause condensation, and the foaming layer of the side wall is usually thicker and has larger influence on the volume ratio of the compartment; the refrigerated return air inlet in the evaporator bin is smaller than the windward area of the evaporator, so that the evaporator is seriously frosted locally, and the refrigerated return air and the evaporator exchange heat insufficiently.
Disclosure of Invention
The invention aims to provide a return air structure of a refrigerator, which solves the problems.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a refrigerator return air structure, which comprises a connecting air duct arranged in a foaming layer between a refrigerating box liner and a freezing box liner; an opening A communicated with an inlet A at the upper end of the connecting air channel is formed in the bottom of the refrigerating box liner, an opening B is formed in the top of the refrigerating box liner, an air return air channel is arranged in the refrigerating box liner at the lower part of the connecting air channel, and an air outlet A at the lower end of the connecting air channel is communicated with the inlet B of the air return air channel; an anti-condensation pipe is arranged on one side of the return air duct; and an air return joint is communicated with an air outlet B at the lower part of the air return duct.
Furthermore, a lower beam is arranged in the inner container of the freezing box along the vertical direction and below the opening B, and the return air duct is positioned at the back of the lower beam.
Furthermore, the condensation-preventing pipe is positioned between the return air duct and the lower beam, and is in contact with the return air duct.
Furthermore, a plurality of freezing return air openings are respectively arranged at the bottoms of the freezing box liners at the two sides of the lower beam, an air supply duct with an L-shaped section is arranged at the bottom and the back of the freezing box liner, an evaporator and a refrigerating fan are arranged in the air supply duct, the top end of the air supply duct penetrates and extends into the freezing box liner, and a plurality of air outlets B are arranged on one side of the vertical section of the air supply duct from top to bottom.
Furthermore, a plurality of freezing return air inlets positioned at two sides of the lower beam are communicated with the air supply duct.
Furthermore, the return air joint comprises an inlet section and an outlet section, and an air outlet B of the return air duct 4 is communicated with the inlet section; the outlet section is of a divergent design.
Further, the cross section of the outlet section is of an isosceles trapezoid structure.
Furthermore, an outlet position of the outlet section is provided with air guide louvers.
The invention has the following beneficial effects:
according to the invention, through designing the air return structure of the refrigerating chamber of the refrigerator, the refrigerating air return and the evaporator are ensured to exchange heat fully, and the effective volume of the refrigerating chamber of the refrigerator is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used 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 invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the return air of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 in accordance with the present invention;
FIG. 3 is a partial enlarged view of the connecting duct of the present invention;
FIG. 4 is a schematic view of a return air connector structure according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-4, the present invention relates to a return air structure of a refrigerator, which comprises a connecting air duct 1 installed in a foaming layer between a refrigerating chamber liner 2 and a freezing chamber liner 3; an opening A21 communicated with an inlet A11 at the upper end of the connecting air duct 1 is arranged at the bottom of the refrigerator container 2, an opening B31 is arranged at the top of the refrigerator container 3, a return air duct 4 is arranged in the refrigerator container 3 at the lower part of the connecting air duct 1, and an air outlet A12 at the lower end of the connecting air duct 1 is communicated with an inlet B41 of the return air duct 4; an anti-condensation pipe 6 is arranged at one side of the return air duct 4; the lower air outlet B42 of the return air duct 4 is communicated with a return air joint 7. The anti-freezing pipe 6 is heated to prevent the freezing and blocking of the return air duct 4, and a flow guide structure is designed inside the lower air port of the return air duct 4, so that the airflow of the return air channel 1 can be divided to each air port, and the return air is ensured to be uniform.
Preferably, a lower beam 5 is provided in the vertical direction in the freezer cabinet 3 below the opening B31, and the return air duct 4 is provided at the back of the lower beam 5.
Preferably, the condensation preventing pipe 6 is located directly between the return air duct 4 and the lower beam 5, and the condensation preventing pipe 6 is in contact with the return air duct 4.
Preferably, a plurality of freezing return air inlets 32 are respectively arranged at the bottoms of the freezing box liners 3 positioned at the two sides of the lower beam 5, an air supply duct 81 with an L-shaped section is arranged at the bottom and the back of the freezing box liner 3, an evaporator 8 and a refrigerating fan 9 are arranged in the air supply duct 81, the top end of the air supply duct 81 penetrates through and extends into the freezing box liner 2, and a plurality of air outlets B82 are arranged at one side of the vertical section of the air supply duct 81 from top to bottom.
Preferably, a plurality of refrigerated return air outlets 32 on either side of the lower beam 5 are in communication with the supply air duct 81.
Preferably, the return air joint 7 comprises an inlet section 71 and an outlet section 72, and the air outlet B42 of the return air duct 4 is communicated with the inlet section 71; the outlet section 72 is of a diverging design.
Preferably, the cross-section of the outlet section 72 is in an isosceles trapezoid configuration.
Preferably, the outlet position of the outlet section 72 is provided with air guide louvers 7.
When the refrigerator is used, under the action of the air-cooling fan 9, the cold energy at the evaporator 8 is conveyed into the refrigerator container 2 and the refrigerator container 3 through the air outlet B82, and the air in the refrigerator container 2 enters the air supply duct 81 again through the connecting duct 1, the return air duct 4, the return air joint 7 and the return air inlet 32.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a refrigerator return air structure which characterized in that: comprises a connecting air duct (1) arranged in a foaming layer between a refrigerating box liner (2) and a freezing box liner (3);
an opening A (21) communicated with an inlet A (11) at the upper end of the connecting air channel (1) is arranged at the bottom of the refrigerating box liner (2), an opening B (31) is arranged at the top of the refrigerating box liner (3), a return air channel (4) is arranged in the refrigerating box liner (3) at the lower part of the connecting air channel (1), and an air outlet A (12) at the lower end of the connecting air channel (1) is communicated with an inlet B (41) of the return air channel (4);
an anti-condensation pipe (6) is arranged on one side of the return air duct (4);
and an air return joint (7) is communicated with an air outlet B (42) at the lower part of the air return duct (4).
2. The return air structure of the refrigerator according to claim 1, wherein a lower beam (5) is provided in the refrigerator cabinet (3) in the vertical direction below the opening B (31), and the return air duct (4) is provided at the back of the lower beam (5).
3. A refrigerator return air structure according to claim 2, wherein the condensation preventing pipe (6) is located directly between the return air duct (4) and the lower beam (5), and the condensation preventing pipe (6) is in contact with the return air duct (4).
4. The return air structure of the refrigerator according to claim 1, wherein a plurality of return air freezing air inlets (32) are respectively formed in the bottoms of the freezing box liners (3) on the two sides of the lower beam (5), an air supply duct (81) with an L-shaped section is formed in the bottom and the back of each freezing box liner (3), an evaporator (8) and a refrigerating fan (9) are arranged in the air supply duct (81), the top end of the air supply duct (81) penetrates through and extends into the freezing box liner (2), and a plurality of air outlets B (82) are formed in one side of a vertical section of the air supply duct (81) from top to bottom.
5. The return air structure of the refrigerator as claimed in claim 4, wherein the freezing return air ports (32) on both sides of the lower beam (5) are communicated with the supply air duct (81).
6. The return air structure of a refrigerator as defined in claim 1 wherein the return air joint (7) includes an inlet section (71) and an outlet section (72), and the outlet B (42) of the return air duct 4 communicates with the inlet section (71); the outlet section (72) is of a divergent design.
7. A return air structure for a refrigerator as defined in claim 6, wherein said outlet section (72) has an isosceles trapezoidal cross-section.
8. Air return structure for refrigerators according to claim 6, characterised in that the outlet section (72) is provided with air guide louvers (7) at the outlet position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110057099.9A CN112648777A (en) | 2021-01-15 | 2021-01-15 | Refrigerator return air structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110057099.9A CN112648777A (en) | 2021-01-15 | 2021-01-15 | Refrigerator return air structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112648777A true CN112648777A (en) | 2021-04-13 |
Family
ID=75368366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110057099.9A Pending CN112648777A (en) | 2021-01-15 | 2021-01-15 | Refrigerator return air structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112648777A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532005A (en) * | 2021-07-23 | 2021-10-22 | 长虹美菱股份有限公司 | Refrigerator air duct structure and refrigerator with same |
| CN114198962A (en) * | 2021-12-09 | 2022-03-18 | 浙江星星冷链集成股份有限公司 | Air-cooled refrigerator capable of balancing internal and external air pressure and good in air-cooled effect |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090004185U (en) * | 2007-10-31 | 2009-05-07 | 삼성전자주식회사 | Refrigerator |
| CN106839605A (en) * | 2017-03-31 | 2017-06-13 | 合肥美菱股份有限公司 | A kind of frostless refrigerator air-supply arrangement |
| CN206637926U (en) * | 2017-03-31 | 2017-11-14 | 合肥美菱股份有限公司 | A kind of return airway for refrigerator |
| CN108253694A (en) * | 2018-01-09 | 2018-07-06 | 广州美的华凌冰箱有限公司 | A kind of wind cooling refrigerator |
| CN208998405U (en) * | 2018-11-12 | 2019-06-18 | 四川长虹电器股份有限公司 | A kind of wind cooling refrigerator |
| CN210220343U (en) * | 2019-02-26 | 2020-03-31 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN111503964A (en) * | 2020-03-26 | 2020-08-07 | 广州美的华凌冰箱有限公司 | Refrigerator, anti-freezing control method, electronic device, and computer-readable storage medium |
-
2021
- 2021-01-15 CN CN202110057099.9A patent/CN112648777A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090004185U (en) * | 2007-10-31 | 2009-05-07 | 삼성전자주식회사 | Refrigerator |
| CN106839605A (en) * | 2017-03-31 | 2017-06-13 | 合肥美菱股份有限公司 | A kind of frostless refrigerator air-supply arrangement |
| CN206637926U (en) * | 2017-03-31 | 2017-11-14 | 合肥美菱股份有限公司 | A kind of return airway for refrigerator |
| CN108253694A (en) * | 2018-01-09 | 2018-07-06 | 广州美的华凌冰箱有限公司 | A kind of wind cooling refrigerator |
| CN208998405U (en) * | 2018-11-12 | 2019-06-18 | 四川长虹电器股份有限公司 | A kind of wind cooling refrigerator |
| CN210220343U (en) * | 2019-02-26 | 2020-03-31 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN111503964A (en) * | 2020-03-26 | 2020-08-07 | 广州美的华凌冰箱有限公司 | Refrigerator, anti-freezing control method, electronic device, and computer-readable storage medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532005A (en) * | 2021-07-23 | 2021-10-22 | 长虹美菱股份有限公司 | Refrigerator air duct structure and refrigerator with same |
| CN114198962A (en) * | 2021-12-09 | 2022-03-18 | 浙江星星冷链集成股份有限公司 | Air-cooled refrigerator capable of balancing internal and external air pressure and good in air-cooled effect |
| CN114198962B (en) * | 2021-12-09 | 2023-08-18 | 浙江星星冷链集成股份有限公司 | Air-cooled refrigerator capable of balancing internal and external air pressure and good in air cooling effect |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210413 |