CN106839602A - Air return system and refrigerator - Google Patents
Air return system and refrigerator Download PDFInfo
- Publication number
- CN106839602A CN106839602A CN201710033186.4A CN201710033186A CN106839602A CN 106839602 A CN106839602 A CN 106839602A CN 201710033186 A CN201710033186 A CN 201710033186A CN 106839602 A CN106839602 A CN 106839602A
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- China
- Prior art keywords
- air
- air channel
- return system
- channel
- air inlet
- Prior art date
- 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
-
- 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
-
- 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
-
- 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
- F25D2317/065—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 the air return
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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 provides a kind of air return system and refrigerator, wherein, a kind of air return system, for refrigerator, including air channel on the casing of refrigerator and the blower fan that is fixedly arranged in air channel, air channel includes：Air inlet, located at the one end in air channel；And air outlet, located at the other end in air channel, wherein, the radial width of the radial width more than air outlet of air inlet.By technical scheme so that the pressure differential increase between air inlet and air outlet, return air speed is accelerated, and then accelerate the cooling rate of refrigeration and freezing.
Description
Technical field
The present invention relates to household electrical appliance technical field, in particular to a kind of air return system and a kind of refrigerator.
Background technology
The return air inlet in wind cooling refrigerator air channel in the market is all located at the bottom of casing；When refrigerator is started working, in wind
In the presence of machine, cooled air is sent in case by duct outlet around evaporator, work of the hot-air in pressure in case
Evaporator lower section is entered by air -return duct with lower, then through the cold and hot exchange of evaporator after, reached in case through blower fan and air outlet, such as
This, wind circulation is established in case.As shown in figure 1, the shape of the air inlet 204 of general air channel air return structure and exhaust outlet 202
Mostly rectangle or strip, and the sectional area of two oral areas is essentially the same.This design is simple, can as far as possible reduce return air resistance
Power, but influenceed by drawer in case and storage food, actual return air wind speed is slower, and return air efficiency is not good, temperature easily occurs uneven
Even situation, and then influence the storage effect of food.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of air return system.
It is another object of the present invention to propose a kind of refrigerator.
To achieve the above object, a kind of technical scheme according to the first aspect of the invention, it is proposed that air return system, is used for
Refrigerator, including air channel on the casing of refrigerator and the blower fan that is fixedly arranged in air channel, air channel includes：Air inlet, located at wind
The one end in road；And air outlet, located at the other end in air channel, wherein, the radial width of air inlet is radially-wide more than air outlet
Degree.
The air return system of technology according to the present invention scheme, air outlet is set greater than by by the radial width of air inlet
Radial width so that the pressure differential increase between air inlet and air outlet, accelerate return air speed, and then accelerate refrigeration and
The cooling rate of freezing, improves user satisfaction.
According to above-mentioned technical proposal of the present invention, it is preferable that air channel structure in the form of slot.
In the technical scheme, air channel structure in the form of slot, for guiding air flow, air by air inlet enter air channel it
Afterwards, air outlet is flowed to along air channel structure, can effectively keeps the pressure differential inside and outside air channel, make air along planned orbit stream
It is logical, appropriate return air speed is reached, and then ensure that the storage effect of food in refrigerator.
According to above-mentioned technical proposal of the present invention, it is preferable that air channel also includes：The first side wall, the quantity of the first side wall is two
When individual, one end of each the first side wall is connected with one end of air inlet, and the other end of each the first side wall is another with air outlet
End is connected, and the air duct surfaces of the first side wall are in curved surface to cave inward.
In the technical scheme, the air duct surfaces of the first side wall shape that caves inward in curved surface makes whole air -return duct by air intake
Mouth to formation necking between air outlet adds spout air channel structure so that is increased by the return air speed of necking section, and then improve
The heat exchange efficiency of evaporator, and enlarging at utmost reduces that middle wind speed is high and both sides wind speed is low, overall heat exchange is uneven
Even situation.
According to above-mentioned technical proposal of the present invention, it is preferable that air channel also includes：First cover plate, the two ends difference of the first cover plate
Two ends with two the first side wall homonymies are tightly connected.
In the technical scheme, the air return system of the closing only with air inlet and air outlet is formed by the first cover plate,
And then the pressure differential between air inlet and air outlet is ensure that, and increase return air speed, further speed up the drop of refrigeration and freezing
Warm speed.
A technical scheme of the invention, it is preferable that air channel also includes：Second sidewall, second sidewall includes straight panel
And bent plate, when the quantity of second sidewall is two, it is parallel to each other to form air outlet between straight panel, two bent plates are with air channel
Axisymmetrical, forms air inlet, and the arc centers of each bent plate are outside air channel.
In the technical scheme, ensureing the situation of the radial width more than the radial width of air outlet of air inlet of air duct
Under, the side wall in air channel could be arranged to the form of straight panel plus bent plate, to form necking air channel, accelerate return air speed, while protecting
Card air-flow is uniform, makes the air-flow for flowing to evaporator right position basically identical, improves the service efficiency of evaporator.
According to above-mentioned technical proposal of the present invention, it is preferable that air channel also includes：Second cover plate, the two ends of each the second cover plate
The two ends with two second sidewall homonymies are tightly connected respectively.
In the technical scheme, the air return system of the closing only with air inlet and air outlet is formed by the second cover plate,
And then the pressure differential between air inlet and air outlet is increased, while increasing return air speed, accelerate the cooling speed of refrigeration and freezing
Degree.
A technical scheme of the invention, it is preferable that air channel is in tubular construction.
In the technical scheme, air channel in tubular construction, only has air outlet and air inlet, and pipeline border is tightly connected,
To ensure the pressure differential between air inlet and air outlet, increase return air speed, further speed up the cooling speed of refrigeration and freezing
Degree.
According to above-mentioned technical proposal of the present invention, it is preferable that air inlet and the rounded setting of air outlet, the diameter of air inlet
More than the diameter of air outlet, the tube wall between air inlet and air outlet is in inner sunken face.
In the technical scheme, air inlet and the rounded setting of air outlet improve the flow effect of air-flow, and pass through
The diameter of air inlet is set greater than the diameter of air outlet, the pressure differential between air inlet and air outlet, Jin Erzeng is increased
Big return air speed, that is, accelerate the cooling rate of refrigeration and freezing.In addition, the tube wall between air inlet and air outlet is in interior concave curved
Face is designed, and to form necking air channel, accelerates return air speed.
According to any of the above-described technical scheme of the invention, it is preferable that also include：Evaporator, in air channel, through evaporator
Fluid after refrigeration is discharged to the casing of refrigerator by blower fan, and after being exchanged heat in casing, fluid flows back into evaporator
Form circulation.
In the technical scheme, in the presence of blower fan, cooled air is sent by duct outlet around evaporator
To in case, in case hot-air under the effect of the pressure by air -return duct enter evaporator lower section, then through the cold and hot exchange of evaporator after,
Reached in case through blower fan and air outlet, wherein, by the way that the diameter of air inlet to be set greater than the diameter of air outlet, increase into
Pressure differential between air port and air outlet, and then increase return air speed, that is, the cooling rate of refrigeration and freezing is accelerated, meanwhile,
By by the curved surface for being set to indent of the side of return air inlet two so that whole air -return duct necking section return air speed increases, and lifting is steamed
The heat exchange efficiency of device is sent out, and flared section at utmost reduces the uneven situation of evaporator overall heat exchange.
A kind of technical scheme according to the second aspect of the invention, it is proposed that refrigerator, including appoint in second aspect present invention
The air return system that one technical scheme is provided.
In the technical scheme, by the way that the diameter of air inlet to be set greater than the diameter of air outlet, air inlet is increased
Pressure differential and air outlet between, and then increase return air speed, that is, the cooling rate of refrigeration and freezing is accelerated, meanwhile, pass through
By the curved surface for being set to indent of the side of return air inlet two so that whole air -return duct necking section return air speed increases, and lifts evaporator
Heat exchange efficiency, and flared section at utmost reduces the uneven situation of evaporator overall heat exchange.
Additional aspect of the invention and advantage will become obvious in following description section, or by practice of the invention
Recognize.
Brief description of the drawings
Fig. 1 shows the top view of the return airway of prior art；
Fig. 2 shows the top view of air return system according to an embodiment of the invention；
Fig. 3 shows the top view of air return system according to still another embodiment of the invention；
Fig. 4 shows the top view of air return system according to still a further embodiment.
Wherein, the corresponding relation in Fig. 1 to Fig. 4 between reference and component names is：
102 air outlets, 104 air inlets, 202 exhaust outlets, 204 air inlets.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied to be further described in detail the present invention.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not limited to following public affairs
The limitation of the specific embodiment opened.
Air return system according to an embodiment of the invention is specifically described with reference to Fig. 2 and Fig. 4.
As shown in Fig. 2 embodiment according to the first aspect of the invention, it is proposed that a kind of air return system, for refrigerator, bag
The air channel on the casing of refrigerator and the blower fan being fixedly arranged in air channel are included, air channel includes：Air inlet 104, located at air channel
One end；And air outlet 102, located at the other end in air channel, wherein, the footpath of the radial width more than air outlet 102 of air inlet 104
To width.
Air return system, air-out is set greater than by by the radial width of air inlet 104 according to an embodiment of the invention
The radial width of mouth 102 so that the pressure differential increase between air inlet 104 and air outlet 102, accelerates return air speed, and then
The cooling rate of refrigeration and freezing is accelerated, user satisfaction is improved.
Wherein it is preferred to, air -return duct two side is Curve Design so that whole air channel into scalable mouth structure, by that will return
The curved surface for being set to indent of the side of air port two so that whole air -return duct necking section return air speed increases, and lifts changing for evaporator
The thermal efficiency, and flared section at utmost reduces the uneven situation of evaporator overall heat exchange, and then improve the refrigeration of refrigerator
Effect, further increases user satisfaction.
As shown in Figures 2 and 3, according to the above embodiment of the present invention, it is preferable that air channel structure in the form of slot.
In this embodiment, air channel structure in the form of slot, for guiding air flow, air enters air channel by air inlet 104
Afterwards, air outlet 102 is flowed to along air channel structure, can effectively keeps the pressure differential inside and outside air channel, make air along pre- orbit determination
Road circulates, and reaches appropriate return air speed, and then ensure that the storage effect of food in refrigerator.
As shown in Fig. 2 according to the above embodiment of the present invention, it is preferable that air channel also includes：The first side wall, the first side wall
Quantity be two when, one end of each the first side wall is connected with one end of air inlet 104, the other end of each the first side wall with go out
The other end in air port 102 is connected, and the air duct surfaces of the first side wall are in curved surface to cave inward.
In this embodiment, the air duct surfaces of the first side wall shape that caves inward in curved surface, makes whole air -return duct by air inlet
Necking is formed between 104 to air outlet 102 and adds spout air channel structure so that increased by the return air speed of necking section, Jin Erti
The heat exchange efficiency of evaporator high, and enlarging at utmost reduces that middle wind speed is high and both sides wind speed is low, overall heat exchange
Uneven situation.
According to the above embodiment of the present invention, it is preferable that air channel also includes：First cover plate, the two ends of the first cover plate respectively with
The two ends of two the first side wall homonymies are tightly connected.
In this embodiment, the return air system of the closing only with air inlet 104 and air outlet 102 is formed by the first cover plate
System, and then ensure that the pressure differential between air inlet 104 and air outlet 102, increase return air speed, further speeded up refrigeration and
The cooling rate of freezing.
As shown in figure 3, according to one embodiment of present invention, it is preferable that air channel also includes：Second sidewall, second sidewall
Including straight panel and bent plate, when the quantity of second sidewall is two, it is parallel to each other to form air outlet 102 between straight panel, two
Bent plate forms air inlet 104 with the axisymmetrical in air channel, and the arc centers of each bent plate are outside air channel.
In this embodiment, the feelings of the radial width more than the radial width of air outlet 102 of air inlet of air duct 104 are being ensured
Under condition, the side wall in air channel could be arranged to the form of straight panel plus bent plate, to form necking air channel, accelerate return air speed, while
Ensure that air-flow is uniform, make the air-flow for flowing to evaporator right position basically identical, improve the service efficiency of evaporator.
According to the above embodiment of the present invention, it is preferable that air channel also includes：Second cover plate, the two ends point of each the second cover plate
Two ends not with two second sidewall homonymies are tightly connected.
In this embodiment, the return air system of the closing only with air inlet 104 and air outlet 102 is formed by the second cover plate
System, and then the pressure differential between air inlet 104 and air outlet 102 is increased, while increasing return air speed, accelerate refrigeration and freeze
Cooling rate.
As shown in figure 4, according to one embodiment of present invention, it is preferable that air channel is in tubular construction.
In this embodiment, air channel in tubular construction, only has air outlet 102 and air inlet 104, and the sealing of pipeline border connects
Connect, to ensure the pressure differential between air inlet 104 and air outlet 102, increase return air speed, further speeded up refrigeration and freezed
Cooling rate.
According to the above embodiment of the present invention, it is preferable that air inlet 104 and the rounded setting of air outlet 102, air inlet
104 diameter with diameter greater than air outlet 102, the tube wall between air inlet 104 and air outlet 102 is in inner sunken face.
In this embodiment, air inlet 104 and the rounded setting of air outlet 102, improve the flow effect of air-flow, and
By the way that the diameter of air inlet 104 to be set greater than the diameter of air outlet 102, increase between air inlet 104 and air outlet 102
Pressure differential, and then increase return air speed, that is, accelerate refrigeration and freezing cooling rate.In addition, air inlet 104 and air outlet
Tube wall between 102 is designed in inner sunken face, to form necking air channel, accelerates return air speed.
According to any of the above-described embodiment of the invention, it is preferable that also include：Evaporator, in air channel, through evaporator system
Fluid after cold is discharged to the casing of refrigerator by blower fan, and after being exchanged heat in casing, fluid flows back into evaporator shape
Into circulation.
In this embodiment, in the presence of blower fan, cooled air is sent by duct outlet 102 around evaporator
To in case, in case hot-air under the effect of the pressure by air -return duct enter evaporator lower section, then through the cold and hot exchange of evaporator after,
Reached in case through blower fan and air outlet 102, wherein, it is set greater than the straight of air outlet 102 by by the diameter of air inlet 104
Footpath, increases the pressure differential between air inlet 104 and air outlet 102, and then increases return air speed, that is, accelerate refrigeration and freeze
Cooling rate, meanwhile, by by the curved surface for being set to indent of the side of return air inlet two so that whole air -return duct necking section return air
Speed increases, and lifts the heat exchange efficiency of evaporator, and flared section at utmost reduces the uneven feelings of evaporator overall heat exchange
Condition.
A kind of embodiment according to the second aspect of the invention, it is proposed that refrigerator, including in second aspect present invention it is any
The air return system that embodiment is provided.
In this embodiment, by the way that the diameter of air inlet 104 to be set greater than the diameter of air outlet 102, increase into
Pressure differential between air port 104 and air outlet 102, and then increase return air speed, that is, the cooling rate of refrigeration and freezing is accelerated,
Meanwhile, by by the curved surface for being set to indent of the side of return air inlet two so that whole air -return duct necking section return air speed increases, and carries
The heat exchange efficiency of evaporator is risen, and flared section at utmost reduces the uneven situation of evaporator overall heat exchange.
Technical scheme has been described in detail above, the present invention proposes a kind of air return system, by by air inlet
Diameter be set greater than the diameter of air outlet, increase the pressure differential between air inlet and air outlet, and then increase return air speed
Degree, that is, accelerate the cooling rate of refrigeration and freezing, meanwhile, by by the curved surface for being set to indent of the side of return air inlet two, making
Obtaining whole air -return duct necking section return air speed increases, and lifts the heat exchange efficiency of evaporator, and flared section is at utmost reduced
The uneven situation of evaporator overall heat exchange.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of air return system, for refrigerator, including air channel on the casing of the refrigerator and is fixedly arranged on the air channel
Interior blower fan, it is characterised in that the air channel includes：
Air inlet (104), located at the one end in the air channel；And
Air outlet (102), located at the other end in the air channel, wherein, the radial width of the air inlet (104) goes out more than described in
The radial width in air port (102).
2. air return system according to claim 1, it is characterised in that the air channel structure in the form of slot.
3. air return system according to claim 2, it is characterised in that the air channel also includes：
The first side wall, when the quantity of the first side wall is two, one end of each the first side wall and the air inlet
(104) one end is connected, and the other end of each the first side wall is connected with the other end of the air outlet (102), and described the
The air duct surfaces of side wall are in curved surface to cave inward.
4. air return system according to claim 3, it is characterised in that the air channel also includes：
First cover plate, the two ends of the two ends of first cover plate respectively with two the first side wall homonymies are tightly connected.
5. air return system according to claim 2, it is characterised in that the air channel also includes：
Second sidewall, the second sidewall includes straight panel and bent plate, described straight when the quantity of the second sidewall is two
Be parallel to each other to form the air outlet (102) between plate, two bent plates with the axisymmetrical in the air channel, formed described in enter
Air port (104), the arc centers of each bent plate are outside the air channel.
6. air return system according to claim 5, it is characterised in that the air channel also includes：
Second cover plate, the two ends of the two ends of each second cover plate respectively with two second sidewall homonymies are tightly connected.
7. air return system according to claim 1, it is characterised in that the air channel is in tubular construction.
8. air return system according to claim 7, it is characterised in that the air inlet (104) and the air outlet (102)
Rounded setting, the diameter with diameter greater than the air outlet (102) of the air inlet (104), the air inlet (104) with
Tube wall between the air outlet (102) is in inner sunken face.
9. air return system according to any one of claim 1 to 8, it is characterised in that also include：
Evaporator, in the air channel, is discharged to the ice through the fluid after the evaporator refrigeration by the blower fan
In the casing of case, after being exchanged heat in the casing, the fluid flows back into the evaporator and forms circulation.
10. a kind of refrigerator, it is characterised in that including the air return system any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033186.4A CN106839602B (en) | 2017-01-18 | 2017-01-18 | Air return system and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033186.4A CN106839602B (en) | 2017-01-18 | 2017-01-18 | Air return system and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106839602A true CN106839602A (en) | 2017-06-13 |
| CN106839602B CN106839602B (en) | 2020-06-12 |
Family
ID=59124411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710033186.4A Active CN106839602B (en) | 2017-01-18 | 2017-01-18 | Air return system and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106839602B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543426A (en) * | 2020-11-26 | 2022-05-27 | 合肥美的电冰箱有限公司 | Air duct assembly and refrigeration equipment |
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| JPH11173746A (en) * | 1997-12-11 | 1999-07-02 | Mitsubishi Electric Corp | Refrigerator |
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| JPH11173746A (en) * | 1997-12-11 | 1999-07-02 | Mitsubishi Electric Corp | Refrigerator |
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| CN104879999A (en) * | 2015-06-15 | 2015-09-02 | 合肥美菱股份有限公司 | Condensation air channel assembly for refrigerator and refrigerator provided with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543426A (en) * | 2020-11-26 | 2022-05-27 | 合肥美的电冰箱有限公司 | Air duct assembly and refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106839602B (en) | 2020-06-12 |
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