CN111765703A - Air duct system and refrigerator - Google Patents
Air duct system and refrigerator Download PDFInfo
- Publication number
- CN111765703A CN111765703A CN202010647384.1A CN202010647384A CN111765703A CN 111765703 A CN111765703 A CN 111765703A CN 202010647384 A CN202010647384 A CN 202010647384A CN 111765703 A CN111765703 A CN 111765703A
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- Prior art keywords
- air
- fan
- duct system
- refrigerating
- air duct
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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
- F25D17/065—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 with 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
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
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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 an air duct system and a refrigerator, and relates to the field of refrigeration technologies and refrigeration appliance structures. In the invention: the inverted U-shaped air duct system is internally and sequentially provided with a fan cover, a refrigerating fan and a micro-channel evaporator from outside to inside; the negative pressure ends of the fan cover and the refrigeration fan are provided with air suction ports; two sides of the fan cover are communicated with branch air ducts for air supply; a plurality of air supply outlets are arranged on branch air channels of the inverted U-shaped air channel system; circulating air in the refrigerating chamber enters the branch air channel along the air suction opening, the micro-channel evaporator, the refrigerating fan and the air inlet, the circulating air entering the branch air channel enters the refrigerating chamber from the plurality of air supply openings in the branch air channel, and circularly enters the air suction opening after heat exchange in the refrigerating chamber. According to the invention, the strip-shaped branched inverted U-shaped air duct system is designed, and the small-volume micro-channel evaporator and the air cover are matched to form the air duct system with a simplified and ultra-small volume, so that the volume proportion of the air duct system in the refrigerating chamber is greatly reduced.
Description
Technical Field
The invention belongs to the field of refrigeration technologies and refrigeration appliance structures, and particularly relates to an air duct system and a refrigerator.
Background
The existing air-cooled refrigerator has a large share in the refrigerator market, and becomes a mainstream product of the existing refrigerator due to the characteristics of large volume ratio, automatic defrosting water discharge, good appearance and the like. The air duct of the air-cooled refrigerator generally adopts a centrifugal fan or an axial flow fan, the air duct adopts the combination of foam and ABS and is installed on the back of the refrigerating chamber in a plane shape, the structural shape of the air duct is generally a fork branch structure, and each air duct branch corresponds to one air outlet.
The refrigeration evaporator of the existing air-cooled refrigerator is generally of a fin type, the evaporator has larger self volume, generally adopts a double-row oblique insertion type, has the transverse depth of at least more than 75mm, and has larger installation volume. The fan is typically located above the evaporator further increasing the longitudinal distance of the hood. Therefore, the evaporator and the air channel structure matched with the evaporator occupy larger volume, and at least 20L-50L of refrigerator volume is wasted.
Disclosure of Invention
The invention aims to provide an air duct system and a refrigerator.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an air duct system and a refrigerator, which comprise a box body, a door body, a refrigerating system, an inverted U-shaped air duct system and a control system, wherein at least one refrigerating chamber and a freezing chamber which are divided by a foaming layer are arranged in the box body; the inverted U-shaped air duct system is arranged on one side of the refrigerating chamber liner; the inverted U-shaped air duct system is internally and sequentially provided with a fan cover, a refrigerating fan and a micro-channel evaporator from outside to inside.
The negative pressure ends of the fan cover and the refrigeration fan are provided with air suction ports; two sides of the fan cover are communicated with branch air ducts for air supply; a plurality of air supply outlets are arranged on branch air channels of the inverted U-shaped air channel system; circulating air in the refrigerating chamber enters the branch air channel along the air suction opening, the micro-channel evaporator, the refrigerating fan and the air inlet, the circulating air entering the branch air channel enters the refrigerating chamber from the plurality of air supply openings in the branch air channel, and circularly enters the air suction opening after heat exchange in the refrigerating chamber.
As a preferred technical scheme of the invention, the branch air ducts on the two sides of the fan cover are positioned at the corner position of the rear side of the inner container of the refrigerating chamber to form a triangular cavity with a right-angled triangle section.
As a preferred technical scheme of the invention, the microchannel evaporator is fixedly arranged in the inner container of the refrigerating chamber; a heater is arranged below the micro-channel evaporator, and a drainage structure for draining defrosting water is arranged below the heater.
As a preferred technical scheme of the invention, the refrigeration fan is positioned at the front side of the microchannel evaporator in the refrigerating chamber, and the refrigeration fan and the microchannel evaporator are arranged in parallel; one side of the refrigeration fan is fixedly arranged on the wind cover; one side of the fan housing is provided with a heat insulation layer for preventing the surface of the fan housing from being condensed due to the refrigerating fan; the wind direction positive pressure end of the refrigeration fan faces the branch air channel, and the negative pressure end of the refrigeration fan faces the air suction opening.
As a preferable technical scheme of the invention, the caliber sizes of a plurality of air supply outlets arranged on the branch air duct are sequentially increased along the trend path of the circulating air.
As a preferred technical scheme of the invention, the heat-insulating layer arranged on one side of the fan cover is made of foam or sponge materials.
As a preferred technical scheme of the invention, the refrigerating fan adopts an axial flow fan or a centrifugal fan.
The invention has the following beneficial effects:
1. the invention abandons the conduction air duct refrigeration mode occupying the back of the whole refrigerating chamber, changes the air duct refrigeration mode into the strip-shaped branched inverted U-shaped air duct system, fully utilizes the space at the right-angle corner of the refrigerating chamber, and forms a simplified air duct system with ultra-small volume by matching with the small-volume micro-channel evaporator and the air cover, thereby greatly reducing the volume proportion of the air duct system occupying the interior of the refrigerating chamber and increasing the actual usable volume in the refrigerator;
2. according to the invention, the plurality of air supply outlets are arranged on the branch air channel, the opening areas of the air supply outlets on the branch air channel are distributed from small to large from the near end to the far end of the fan, and the farther the fan is away from the refrigeration fan, the larger the caliber of the air supply outlet is, so that more air can be distributed to the far end of the branch air channel, and the cold distribution uniformity of the refrigerating chamber 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 front view of an air duct system and a refrigerator compartment opening door thereof according to the present invention;
FIG. 2 is a schematic front view of the air duct system of the present invention installed in the refrigerating compartment (with the air hood removed) of the refrigerator;
FIG. 3 is a schematic side view of the air duct system and the refrigerator according to the present invention;
FIG. 4 is a schematic top view of the air duct system and its refrigerator of the present invention;
FIG. 5 is a schematic structural view of the reversed "U" arrangement of the air duct system and the refrigerator according to the present invention;
FIG. 6 is a schematic diagram of a single-sided structure of a branch duct of the air duct system and the refrigerator according to the present invention;
FIG. 7 is a schematic view of a combination structure of an air duct system and a (centrifugal) fan of a refrigerator according to the present invention;
FIG. 8 is an enlarged partial view of FIG. 2 at H;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a box body; 2-a door body; 3-a refrigerating chamber; 4-a freezing chamber; 5-an inverted U-shaped air duct system; 6-wind cover; 7-an air suction opening; 8-an axial flow fan; 9-microchannel evaporator; 10-vertical air supply ducts on two sides; 11-an air supply outlet;
31-back of the refrigerated liner; 32-the right side of the refrigeration container; 33-left side surface of the refrigeration liner; 61-a fan cover heat-insulating layer; 101-left vertical air supply duct; 102-right vertical air supply duct; 111-left supply air outlet; 112-right side supply air outlet.
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.
Example one
In the invention, the fan is an axial flow fan, and the whole air duct system is arranged in the refrigerating chamber in an inverted U shape.
As shown in fig. 1 and 3, at least one closed refrigerating chamber 3 is formed by a foaming layer and a door body 2 of a refrigerator body 1. The air duct system 5 is located inside the refrigerating compartment 3.
After the door body 2 is opened, the inverted U-shaped air duct system 5 is inverted U-shaped and is fixed behind the refrigerating chamber 3.
It can be seen that the air suction opening 7 is designed on the fan housing 6 and is located at the air suction negative pressure end of the axial flow fan 8. The two side vertical air supply ducts 10 are respectively positioned at the far ends of the transverse ducts of the inverted U-shaped duct system 5 and are communicated and installed.
The transverse air duct of the inverted U-shaped air duct system 5 is matched with the vertical air supply air ducts 10 at two sides to form an inverted U-shaped air duct. The fan housing 6 and the vertical air supply ducts 10 on the two sides are provided with a plurality of air supply outlets 11, the air supply outlets 11 are arranged from small to large from near to far from the axial flow fan 8, and when the loss of cold air is large after the cold air passes through a right-angle turn, the far-end air volume is ensured.
With reference to fig. 2 and 3, after removing the transverse fan housing 6, it can be seen that the axial fan 8 is installed and fixed in front of the microchannel evaporator 9. The microchannel evaporator 9 is arranged on the back surface 31 of the refrigerating liner, and a certain gap is formed around the back for cold air to pass through.
Referring to fig. 3, it can be seen that the microchannel evaporator 9 is fixed on the back 31 of the inner container of the refrigerating chamber, the positive pressure blowing surface of the axial flow fan 8 is arranged in front of the microchannel evaporator, the fan cover heat insulation layer 61 is arranged in front of the microchannel evaporator, and finally the fan cover 6 is arranged in front of the microchannel evaporator.
It can be seen from fig. 4 that the back surface 31 of the refrigerating container and the left side surface 33 of the refrigerating container form a similar right angle, and the surface of the left vertical air supply duct 101 is obliquely arranged to form a cavity with the right angle of the right refrigerating container, so that cold air can pass through the cavity, reach the left air supply opening 111 and enter the refrigerating chamber 3. The back of the refrigeration container 31 and the right side face of the refrigeration container 32 form a similar right angle, the surface of the vertical air supply duct 102 on the left side is obliquely arranged and forms a cavity with the right angle of the refrigeration container on the right side, and cold air can pass through the cavity and reach the right air supply opening 112 to enter the refrigeration chamber 3.
In the refrigeration process, when the refrigerating chamber 3 requires refrigeration, the microchannel evaporator 9 is rapidly cooled, the axial flow fan 8 is started, and the microchannel evaporator 9 is positioned at the positive pressure blowing end of the axial flow fan 8, has a certain gap at the periphery and is communicated with a cavity formed by the transverse fan cover 6. The cold air is pressed to the two sides of the fan housing 6 at the positive pressure end, then reaches the cavity of the vertical air duct 10, is ejected from the left vertical air supply duct 101 and the right vertical air supply duct 102, is sucked into the air return housing 6 by the air suction 7 through heat exchange, is cooled by the microchannel evaporator 9, and is sent out again, and the process is circulated repeatedly until the preset temperature is reached.
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 (7)
1. The utility model provides a duct system and refrigerator, includes box (1), the door body (2), refrigerating system, type of falling U duct system (5) and control system, be equipped with in box (1) and become at least one walk-in (3), a freezer (4) that separate into by the foaming layer, refrigerating system includes evaporimeter, compressor, condenser, capillary, filter, solenoid valve and corresponding coupling assembling, its characterized in that:
the evaporator in the refrigerating system adopts a micro-channel evaporator (9);
the inverted U-shaped air duct system (5) is arranged on one side of the inner container of the refrigerating chamber (3);
the inverted U-shaped air duct system (5) is internally and sequentially provided with a fan cover (6), a refrigerating fan and a micro-channel evaporator (9) from outside to inside in a stacked mode;
the air hood (6) and the negative pressure end of the refrigeration fan are provided with air suction ports (7);
two sides of the fan cover (6) are communicated with a branch air duct for air supply;
a plurality of air supply outlets (11) are arranged on a branch air duct of the inverted U-shaped air duct system (5);
circulating air in the refrigerating chamber (3) enters the branch air channel along the air suction opening (7), the micro-channel evaporator (9), the refrigerating fan and the air inlet, the circulating air entering the branch air channel enters the refrigerating chamber (3) through the plurality of air supply openings (11) in the branch air channel, and the circulating air enters the air suction opening (7) after heat exchange in the refrigerating chamber (3).
2. The air duct system and the refrigerator as claimed in claim 1, wherein:
the branch air ducts on the two sides of the fan cover (6) are positioned at the corner of the rear side of the inner container of the refrigerating chamber (3) to form a triangular cavity with a right-angled triangle section.
3. The air duct system and the refrigerator as claimed in claim 1, wherein:
the microchannel evaporator (9) is fixedly arranged in the inner container of the refrigerating chamber (3);
a heater is arranged below the micro-channel evaporator (9), and a drainage structure for draining defrosting water is arranged below the heater.
4. The air duct system and the refrigerator as claimed in claim 1, wherein:
the refrigerating fan is positioned at the front side of the microchannel evaporator (9) in the refrigerating chamber (3), and the refrigerating fan and the microchannel evaporator (9) are arranged in parallel;
one side of the refrigerating fan is fixedly arranged on the fan cover (6);
one side of the fan cover (6) is provided with a heat insulation layer for preventing condensation on the surface of the fan cover caused by the refrigerating fan;
the wind direction positive pressure end of the refrigeration fan faces the branch air channel, and the negative pressure end of the refrigeration fan faces the air suction opening (7).
5. The air duct system and the refrigerator as claimed in claim 1, wherein:
the caliber sizes of a plurality of air supply outlets (11) arranged on the branch air duct are sequentially increased along the trend path of the circulating air.
6. The air duct system and the refrigerator as claimed in claim 4, wherein:
and the heat insulation layer arranged on one side of the fan cover (6) is made of foam or sponge.
7. The air duct system and the refrigerator as claimed in claim 1, wherein:
the refrigeration fan adopts an axial flow fan (8) or a centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647384.1A CN111765703A (en) | 2020-07-07 | 2020-07-07 | Air duct system and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647384.1A CN111765703A (en) | 2020-07-07 | 2020-07-07 | Air duct system and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111765703A true CN111765703A (en) | 2020-10-13 |
Family
ID=72724797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010647384.1A Pending CN111765703A (en) | 2020-07-07 | 2020-07-07 | Air duct system and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111765703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963652A (en) * | 2022-05-16 | 2022-08-30 | 长虹美菱股份有限公司 | Cold-stored air duct system of refrigerator |
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| CN208567260U (en) * | 2018-07-09 | 2019-03-01 | 中科美菱低温科技股份有限公司 | A kind of circulation air path of air-cooled Medical refrigerator |
| CN109883110A (en) * | 2019-03-15 | 2019-06-14 | 合肥华凌股份有限公司 | Refrigeration equipment |
| CN110160284A (en) * | 2019-04-15 | 2019-08-23 | 合肥华凌股份有限公司 | Refrigeration equipment |
| CN111664639A (en) * | 2020-06-18 | 2020-09-15 | 长虹美菱股份有限公司 | Cold-stored air duct system and refrigerator |
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2020
- 2020-07-07 CN CN202010647384.1A patent/CN111765703A/en active Pending
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| CN2550700Y (en) * | 2002-06-20 | 2003-05-14 | 广东三洋科龙冷柜有限公司 | Air duct structure for refrigerator and freezer |
| KR20040067204A (en) * | 2003-01-22 | 2004-07-30 | 엘지전자 주식회사 | Refrigerator |
| US20050160756A1 (en) * | 2004-01-28 | 2005-07-28 | Lg Electronics Inc. | Refrigerator |
| CN202403460U (en) * | 2012-01-04 | 2012-08-29 | 深圳市卫武光明生物制品有限公司 | Evaporator with diversion air pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963652A (en) * | 2022-05-16 | 2022-08-30 | 长虹美菱股份有限公司 | Cold-stored air duct system of refrigerator |
| CN114963652B (en) * | 2022-05-16 | 2024-06-11 | 长虹美菱股份有限公司 | Refrigerating air duct system of refrigerator |
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Application publication date: 20201013 |
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