CN106524634A - Refrigerator and air duct backboard for refrigerator - Google Patents
Refrigerator and air duct backboard for refrigerator Download PDFInfo
- Publication number
- CN106524634A CN106524634A CN201610887635.7A CN201610887635A CN106524634A CN 106524634 A CN106524634 A CN 106524634A CN 201610887635 A CN201610887635 A CN 201610887635A CN 106524634 A CN106524634 A CN 106524634A
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- China
- Prior art keywords
- air
- wind
- blower fan
- air channel
- supply
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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
-
- 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
-
- 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
- F25D23/00—General constructional features
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
Abstract
The invention relates to a refrigerator and an air duct backboard for the refrigerator. A fan accommodating part and an air supply area are formed in the air duct backboard. A plurality of air ducts are formed in the air supply area, an air distribution point is formed between the air duct walls of any two adjacent air ducts; only two of the multiple air distribution points are primary air distribution points, and the distances between the primary air distribution points and the center of the fan accommodating part are the shortest and equal; and the air supply area is divided into an upper air supply area body and a lower air supply area body by the two primary air distribution points, the upper air supply area body and the lower air supply area body are located above and below the primary air distribution points correspondingly and each are provided with one or more air ducts, and the ratio of the quantity of air flowing into the upper air supply area body to the quantity of air flowing into the lower air supply area body is made constant. In addition, the invention provides the refrigerator provided with the air duct backboard. According to the refrigerator and the air duct backboard for the refrigerator, the air quantities in the air ducts of the air duct backboard can be kept stable, the air quantity distribution of the air ducts of the air duct backboard can be kept constant, and after the air duct, towards a refrigerating chamber, of the air duct backboard is closed, the ratio of the quantities of air flowing into other air ducts can be kept equal to the ratio before the air duct towards the refrigerating chamber is closed, so that uniform and rapid refrigeration is achieved, and energy consumption of the refrigerator is reduced.
Description
Technical field
The present invention relates to refrigerating storing field, more particularly to a kind of refrigerator and the air channel backboard for refrigerator.
Background technology
At present, evaporimeter is typically placed in freezing interior by wind cooling refrigerator, and arranges air channel backboard at the back of refrigerating chamber.Wind
Blower fan is housed in road backboard, is sucked in the backboard of air channel, then again by cold wind by wind with the cold wind manufactured evaporimeter using blower fan
The air channel of road backboard is blown into the storing compartment of refrigerator.In order to keep the equal of the uniformity and refrigeration of storing compartment zones of different temperature
Even property, multiple air channels are typically communicated to the zones of different of storing compartment, and cold is uniformly blowed to storing compartment.However, by
In the particularity of air channel back board structure, existing air channel back board structure is difficult to keep the stable and allocation of the amount of air of each air channel volume
It is constant, make the refrigeration of refrigerator not reach the effect of anticipation.
Additionally, the cold wind for flowing out air channel backboard is generally divided into two parts：A part of cold wind is by positioned at air channel backboard top
Air channel flow to refrigerating chamber；A part of cold wind blows to multiple regions of refrigerating chamber by connecting the air channel of refrigerating chamber.In existing skill
In art, the air channel for flowing to refrigerating chamber is typically provided with air door, to open air door when needing to refrigerating chamber air feed, it is not necessary to cold
Hide when room provides cold wind and close air door.However, when air door is closed, the cold wind that will flow into originally refrigerating chamber can be blocked then by
Other air channels flow into refrigerating chamber, affect to flow to originally the ratio of refrigerating chamber regional air quantity, and then the cold wind for making freezing indoor
Maldistribution, affects refrigeration.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind solve the above problems or at least in part solve on
State the refrigerator and the air channel backboard for refrigerator of problem.
It is an object of the present invention to keep the constant of each air channel volume ratio in the backboard of air channel as far as possible.
Another object of the present invention is will to keep stablizing for cold wind flowing in the backboard of air channel as far as possible.
A further object of the present invention be to make air channel backboard in flow to refrigerating chamber air channel close after, flow to other each wind
The ratio of road air quantity is equal before closing with the air channel.
Especially, the invention provides a kind of air channel backboard for refrigerator, is formed with the wind for accommodating blower fan in which
Machine receiving portion and the air-supply region for exporting cold wind in the blower fan receiving portion radial outer periphery；
The air-supply region is configured to multiple air channels, and is had between the wind path wall in the adjacent air channel of any two intersecting
Portion, each described cross-shaped portion constitute the cold wind to clashing into thereon and are separated point wind point for enabling its flow into adjacent air channel,
And
It is multiple it is described be divided in wind point have and the only two extremely blower fan receiving portions centre distance it is nearest and equal one
Fraction wind point, which is divided into the air-supply region above and below the fraction wind point, has one or more respectively
The top air-supply region and bottom air-supply region in air channel, and cause to flow to the top air-supply region and bottom air-supply region
Air quantity proportions constant.
Alternatively, the ratio of the distance of two fraction wind points away from the blower fan receiving portion center and the blower fan radius
Value is selected from a numerical value between 1.5 to 2.5.
Alternatively, the top air-supply region includes multiple top supply air ducts, is formed between the top supply air duct
Point wind point is 2 fraction wind point of top, and the distance of 2 fraction wind point of the top to the blower fan receiving portion center is equal and is more than
The distance of the one fraction wind point to the blower fan receiving portion center, so that the air quantity ratio for flowing into each top supply air duct is permanent
It is fixed.
Alternatively, the quantity of the plurality of top supply air duct is three；And be in three top supply air ducts
The top supply air duct of circumferentially intermediate position is provided with throttle setting, to be controllably opened and closed.
Alternatively, the bottom air-supply region includes multiple bottom supply air ducts, is formed between the bottom supply air duct
Point wind point is 2 fraction wind point of bottom, and the distance of 2 fraction wind point of the bottom to the blower fan receiving portion center is equal and is more than
The distance of the one fraction wind point to the blower fan receiving portion center, so that the air quantity ratio for flowing into each bottom supply air duct is permanent
It is fixed.
Alternatively, the quantity of the plurality of bottom supply air duct is two.
Alternatively, distance of the 2 fraction wind point of multiple tops away from the blower fan receiving portion center and two one-levels
The ratio of distance of the wind point away from the blower fan receiving portion center is divided to be selected from a numerical value between 1.1 to 1.5；Multiple bottoms two
Distance of the fraction wind point away from the blower fan receiving portion center is with two fraction wind points away from the blower fan receiving portion center
The ratio of distance is selected from a numerical value between 1.1 to 1.5.
Alternatively, at least partially logarithmic spiral curved surface of the windward side of the wind path wall of two bottom supply air ducts or
Person's Archimedes's curved surface.
Alternatively, the blower fan receiving portion is offered for the air intake opening to air intake in the air channel backboard, the wind
The ring mounts for installing centrifugal blower are provided with the inside of machine receiving portion；It is provided with front side of the air channel backboard with which altogether
With the air duct cover board for limiting the blower fan receiving portion and the air-supply region, the air duct cover board is offered and multiple wind
Multiple air outlets of road insertion, so that the cold wind in multiple air channels is flowed out via multiple air outlets.
Especially, present invention also offers a kind of refrigerator, including：
Casing, defines refrigerating chamber and the storeroom above the refrigerating chamber in which；
Any of the above-described kind of air channel backboard, is arranged at the back of the refrigerating chamber；
Blower fan, is arranged in the air channel backboard；And
Air duct cover board, is arranged at the front side of the air channel backboard and the blower fan, wherein
Top supply air duct in three top supply air ducts in circumferentially intermediate position is connected with the storeroom,
Other described air channels are connected with the refrigerating chamber.
The air channel backboard of the present invention is because have and only two centre distances to blower fan receiving portion in its multiple points of wind points
A nearest and equal fraction wind point, can be divided into air-supply region above and below a fraction wind point, have one respectively
Or the top air-supply region and bottom air-supply region in multiple air channels, and then cause to flow to top air-supply region and bottom air-supply region
Air quantity proportions constant.
Further, as top air-supply region includes multiple top supply air ducts, what is formed between the supply air duct of top divides
Wind point be 2 fraction wind point of top, and 2 fraction wind point of top to blower fan receiving portion center distance it is equal and be more than a fraction wind
The distance of point to blower fan receiving portion center, can make the air quantity proportions constant of each top supply air duct of inflow, and then improve ice
The uniformity of case refrigeration, and beneficial to reduction energy consumption of refrigerator.
Further, as bottom air-supply region includes multiple bottom supply air ducts, what is formed between the supply air duct of bottom divides
Wind point is 2 fraction wind point of bottom, and the distance of 2 fraction wind point of bottom to blower fan receiving portion center is equal and is more than a fraction wind point
To the distance at blower fan receiving portion center, the air quantity proportions constant of each bottom supply air duct of inflow can be made, be further increasing
The uniformity of refrigeration for refrigerator, and beneficial to reduction energy consumption of refrigerator.
Further, due at least partially logarithmic spiral curved surface of the windward side of the wind path wall of two bottom supply air ducts
Or Archimedes's curved surface, fluency and stability of the cold wind in corresponding duct flows can be improved, refrigeration for refrigerator is further improved
Uniformity.
The refrigerator of the present invention is due to including being in circumferentially intermediate position in above-mentioned air channel backboard, and three top supply air ducts
Top supply air duct connect with storeroom, other air channels are connected with refrigerating chamber, can flow to storeroom air channel close after, make
The ratio for flowing to the air quantity of the zones of different of refrigerating chamber is equal with before air channel closing, and then solves the air channel for leading to refrigerating chamber
Air door close after, flow to the disorderly difficult problem of the air quantity of the cold wind in other each air channels.
According to the detailed description below in conjunction with accompanying drawing to the specific embodiment of the invention, those skilled in the art will be brighter
The above-mentioned and other purposes of the present invention, advantages and features.
Description of the drawings
Describe some specific embodiments of the present invention hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation in detail.
In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the schematic diagram of air channel backboard according to an embodiment of the invention and air duct cover board；
Fig. 2 is the schematic local structural graph of blower fan in air channel backboard shown in Fig. 1；
Fig. 3 is the speed vector figure of fan leaf in air channel backboard shown in Fig. 1；And
Fig. 4 is the schematic partial exploded view of refrigerator according to an embodiment of the invention.
Specific embodiment
Fig. 1 is the schematic diagram of air channel backboard according to an embodiment of the invention and air duct cover board.Such as Fig. 1 institutes
Show, The embodiment provides a kind of air channel backboard 100 for refrigerator, can be formed with for accommodating blower fan 200 in which
Blower fan receiving portion 110 and the air-supply region 120 for exporting cold wind in 110 radial outer periphery of blower fan receiving portion.Blow zones
It is, with multiple air channels 130, and can have the cross-shaped portion (can between the wind path wall in the adjacent air channel of any two 130 that domain 120 is formable
It is interpreted as the end of the close blower fan 200 of wind path wall), each cross-shaped portion may make up one and carry out point to clashing into cold wind thereon
Every and enable its flow into point wind point 140 in adjacent air channel 130.
Especially, as blower fan 200 is blown towards its radial outside, and the air outlet of blower fan 200 is typically in same circle
Zhou Shang, then at the point of the equal distance in 200 center of blower fan, the situation of its cold wind flowing is (including flow velocity, flow direction and stream
Dynamic disorderly situation etc.) it is general identical, therefore following setting can be made：Have in multiple points of wind points and only two to blower fan accommodate
The nearest and equal fraction wind point 141 of the centre distance in portion 110, its can 120 points of region of air-supply be positioned at a fraction wind point
Above and below in the of 141, respectively with one or more air channels 130 top air-supply region 121 and bottom air-supply region 122, enter
And cause to flow to the air quantity proportions constant in top air-supply region 121 and bottom air-supply region 122.
That is, multiple points of wind points of the embodiment may include two fraction wind points 141, will air-supply region 120
Be divided into above two fraction wind points 141 top air-supply region 121 and below two fraction wind points 141 under
Portion air-supply region 122.The distance of two fraction wind points 141 away from 200 center of blower fan is equal, can make top air-supply 121 He of region
Air inlet (the top air-supply region 121 limited between i.e. two fraction wind points 141 and the bottom air-supply in bottom air-supply region 122
The connected entrance in region 122) towards the air-out direction of blower fan 200, cold wind can be made to flow into top air-supply region 121 and bottom air-supply
There is during region 122 identical cold wind flow condition as far as possible, and then cause to flow to top air-supply region 121 and bottom air-supply region
122 air quantity proportions constant.
Fig. 2 is the schematic local structural graph of blower fan in air channel backboard shown in Fig. 1, i.e. the structural representation of 200 air outlet of blower fan
Figure, Fig. 3 are the speed vector figures of 200 flabellum of blower fan in air channel backboard shown in Fig. 1.With reference to shown in Fig. 2, Fig. 3, the blower fan 200 is (to be centrifuged
As a example by blower fan) theoretical head of the blower fan 200 can be drawn by the absolute velocity of its fluid imported and exported and the equation of angular momentum, then by this
Lift calculates the pressure of 200 air outlet of blower fan.Computing formula is as follows：
Wherein
Pth∞Theoretical stagnation pressure rising value；
The proportion of γ air；
Hth∞Lift；
G acceleration of gravity；
u2The velocity of following of fluid at fan outlet；
vu2The horizontal component of the absolute velocity of fluid at fan outlet；
u1The velocity of following of fluid at fan inlet；
vu1The horizontal component of the absolute velocity of fluid at fan inlet；
Therefore, the outlet pressure of the blower fan 200 is related to specifications parameter of the blower fan 200 itself and air specific weight.Suddenly
The slightly impact of air specific weight, the outlet pressure of blower fan 200 are related to specifications parameter of the blower fan 200 itself, so can be by adjusting
It is more stable that the structure of section air channel backboard 100 makes cold wind flow, uniformly.
Further, its stream along air channel 130 is limited as the cold wind for flowing out the outlet of blower fan 200 can be stopped by wind path wall
To flowing so that produce windage (particularly in the wind path wall of 130 porch of air channel), and flow velocity when cold wind flows at the wind path wall
With windage into positive correlation.Wind passage mouth is more remote apart from the air outlet of blower fan 200 in theory, and the cold wind for flowing to air channel 130 is more stable, equal
Even, windage is also less, but the size for being limited to air channel backboard 100 is limited, and makes following setting：Two fraction wind points 141
The ratio of 200 radius of distance and blower fan away from 110 center of blower fan receiving portion is selected from a numerical value between 1.5 to 2.5, preferably
1.7, reasonably to select the position of two fraction wind points 141 according to the air outlet pressure of blower fan 200, to keep flowing to top
Region and lower area air quantity it is stable, uniform.
In some embodiments of the invention, air-supply region 121 in top may also include multiple top supply air ducts 131, on
Point wind point 140 formed between portion's supply air duct 131 is 2 fraction wind point 142 of top.As it was previously stated, 2 fraction wind point 142 of top
Distance to 110 center of blower fan receiving portion can be equal and more than the distance of a fraction wind point 141 to 110 center of blower fan receiving portion,
So as to flow into the air quantity proportions constant of each top supply air duct 131.That is, 2 fraction wind point 142 of top is positioned at multiple
Top air-supply region 121 in so that by two fraction wind points 141 separate and flow into top air-supply region 121 cold wind again by
2 fraction wind point 142 of top separates, and then flows in each top supply air duct 131 in the air-supply region 121 of top, to realize
Air stage feeding to top supply air duct 131.
Further, the quantity of multiple top supply air ducts 131 can be place in three, and three top supply air ducts 131
Top supply air duct 131 in circumferentially intermediate position can be provided with throttle setting, to be controllably opened and closed.With reference to air channel backboard 100
Concrete setting, can make to close in the top supply air duct 131 of circumferentially intermediate position in three top supply air ducts 131 are flowed to
After closing, the ratio and the air channel 130 for making the air quantity for flowing to other air channels 130 is closed front equal.
In some embodiments of the invention, air-supply region 122 in bottom may also include multiple bottom supply air ducts 132, under
Point wind point 140 formed between portion's supply air duct 132 is 2 fraction wind point 143 of bottom.As it was previously stated, 2 fraction wind point 143 of bottom
Distance to 110 center of blower fan receiving portion can be equal and more than the distance of a fraction wind point 141 to 110 center of blower fan receiving portion,
So as to flow into the air quantity proportions constant of each bottom supply air duct 132.That is, 2 fraction wind point 143 of bottom is positioned at multiple
Bottom air-supply region 122 in so that by two fraction wind points 141 separate and flow into bottom air-supply region 122 cold wind again by
2 fraction wind point 143 of bottom separates, and then flows in each bottom supply air duct 132 in the air-supply region 122 of bottom, to realize
Air stage feeding to bottom supply air duct 132.Further, the quantity of multiple bottom supply air ducts 132 is two.
In some embodiments of the invention, in order that 2 fraction wind point 143 of 2 fraction wind point 142 of multiple tops or bottom
Blow in region 121 or bottom air-supply region 122 positioned at top, and further optimize the structure of air channel backboard 100, can be to multiple
Make concrete restriction in the position of 2 fraction wind point 143 of 2 fraction wind point 142 of top and bottom：2 fraction wind point 142 of multiple tops
The ratio choosing of distance of the distance away from 110 center of blower fan receiving portion with two fraction wind points 141 away from 110 center of blower fan receiving portion
From a numerical value between 1.1 to 1.5, such as 1.1,1.2,1.3,1.4,1.5；2 fraction wind point 143 of multiple bottoms holds away from blower fan
The ratio of distance of the distance at 110 centers of Na Bu with two fraction wind points 141 away from 110 center of blower fan receiving portion selected from 1.1 to
A numerical value between 1.5, such as 1.1,1.2,1.3,1.4,1.5.So setting can be maintained into top supply air duct 131 with
Air quantity in portion's supply air duct 132 it is stable and uniform.
In some embodiments of the invention, the windward side of the wind path wall of two bottom supply air ducts 132 is at least part of
Can be logarithmic spiral curved surface or Archimedes's curved surface.Wherein, the windward side of wind path wall is interpreted as and flows into the cold of air channel 130
There is wind the cold wind that the side of the wind path wall of large contact area, i.e. convection current enter air channel 130 to produce the side of larger windage.Cause
This, makees above-mentioned setting and can further improve fluency and the stability that cold wind flows in corresponding air channel 130 to the side wind path wall.It is excellent
Selection of land, is about the air channel in corresponding air channel 130 from point wind point 140 of wind path wall along the path that wind path wall extends into air channel 130
The 1/4 to 1/3 of wall length.
In some embodiments of the invention, blower fan 200 can be centrifugal blower, in view of the properity of centrifugal blower is special
Point, makees following arrangement to air channel 130：Blower fan receiving portion 110 is offered for the air intake opening to air intake in air channel backboard 100
111, which can be located at the central authorities of 100 horizontal direction of air channel backboard.The inner side of blower fan receiving portion 110 can be provided with for installing centrifugation
The ring mounts of blower fan.Multiple air channels 130 circumferentially can extend outwardly from the outside of centrifugal blower respectively, and multiple air channels 130
With the swaying direction consistent with the rotation direction of centrifugal blower, to reduce resistance of the wind path wall to cold wind, cold wind is further made
Flowing it is more smooth, it is stable.
Specifically, with reference to shown in Fig. 1, multiple air channels 130 can arrange 5 in the counterclockwise direction.Wherein, top supply air duct
131 may include positioned at top blow region 121 on the left of the first air channel, positioned at top blow region 121 on the right side of the 4th air channel,
Positioned at the five-duct between the first air channel and the 4th air channel in top air-supply region 121.Bottom supply air duct 132 can be wrapped
Include：The second air channel on the left of the air-supply region 122 of bottom and the 3rd air channel on the right side of the air-supply region 122 of bottom.Enter
One step ground, the 4th air channel can be upwardly extended after being extended by the lower right upper right side of centrifugal blower.Five-duct can be by centrifugation wind
The upper right side of machine upwardly extends.First air channel can be upwardly extended by the upper left side of centrifugal blower.Second air channel can be by centrifugal blower
Lower left lower left extend after extend downwardly.Under 3rd air channel can be extended backward by the lower left lower right of centrifugal blower
Extend, so that each air channel 130 is with the swaying direction consistent with centrifugal blower rotation direction.In some embodiments, often
The diameter in individual air channel 130 can be 70mm to 90mm, preferably 80mm or so, to optimize the structure in air channel 130.
In some embodiments of the invention, can be provided with front side of air channel backboard 100
Portion 110 and the air duct cover board 300 in air-supply region 120, air duct cover board 300 can offer with 130 insertion of multiple air channels it is multiple go out
Air port 310, so that the cold wind in multiple air channels 130 is flowed out via multiple air outlets 310.Specifically, multiple air outlets 310 can divide
For 4 vertical rows, often arranging has the air outlet 310 of symmetrical left and right two, amounts to eight air outlets 310.Wherein, the first air channel,
Each vertically arranged two air outlets 310 in two air channels, the 3rd air channel and the 4th air channel, so that cold wind is flowed out by multiple air outlets 310,
The front of air channel backboard 100 is equably flowed to more.
Fig. 4 is the schematic partial exploded view of refrigerator according to an embodiment of the invention.As shown in figure 4, the present invention
Some embodiments additionally provide a kind of refrigerator 10, and which may include casing, the air channel backboard 100 of any of the above-described embodiment, is arranged at
Blower fan 200 in air channel backboard 100 and be arranged at air channel backboard 100 and blower fan 200 front side air duct cover board 300.Wherein,
Refrigerating chamber 400 and the storeroom above refrigerating chamber 400 can be defined in casing, and the storeroom can be refrigerating chamber or alternating temperature
Room, air channel backboard 100 may be disposed at the back of refrigerating chamber 400.Especially, in three top supply air ducts 131 in circumference
Between the top supply air duct 131 of position can connect with storeroom, other air channels 130 can be connected with refrigerating chamber 400, that is to say, that
Five-duct can be connected with storeroom, and other air channels 130 can be connected with refrigerating chamber 400, so that cold wind is via multiple air outlets 310
Flow to multiple regions of storeroom and refrigerating chamber 400.The present embodiment can be effectively improved the flowing ring of cold wind in air channel backboard 100
Border, and then the stable and air volume adjustment of the air quantity of the cold wind that can keep as far as possible flowing to different air channels 130 is constant.Meanwhile, this reality
Applying example also after the air channel 130 for flowing to storeroom is closed can make the ratio of the air quantity of the zones of different for flowing to refrigerating chamber 400 and be somebody's turn to do
Air channel 130 close it is front equal, and then solve the air channel 130 for leading to refrigerating chamber air door close after, flow to other each air channels 130
Cold wind the disorderly difficult problem of air quantity.
Table 1 below, table 2 and table 3 are that air door is arranged above refrigerating chamber wind passage mouth at 15cm, refrigerates at wind passage mouth respectively
And the data that air door is tested when opening wide.Wherein, F1, F2, F3, F4, F5, F6, F7, F8 and S are represented respectively positioned at the first air channel
On the downside of air outlet 310, the air outlet 310 on the downside of the first air channel, the 4th air channel on the upside of the air outlet 310 of upside, the 4th air channel
Air outlet 310, the air outlet 310 on the upside of the second air channel, the air outlet 310 on the upside of the 3rd air channel, going out on the downside of the second air channel
The air outlet 310 of air outlet 310 and five-duct on the downside of air port 310, the 3rd air channel.
Table 1
Table 2
Table 3
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe multiple showing for the present invention
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
It is determined that or deriving many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all these other variations or modifications.
Claims (10)
1. a kind of air channel backboard for refrigerator, is formed with which for accommodating the blower fan receiving portion of blower fan and being in the blower fan
The air-supply region for exporting cold wind of receiving portion radial outer periphery；
The air-supply region is configured to multiple air channels, and has cross-shaped portion between the wind path wall in the adjacent air channel of any two,
Each described cross-shaped portion constitutes the cold wind to clashing into thereon and is separated point wind point for enabling its flow into adjacent air channel, and
It is multiple it is described be divided in wind point have and the only two extremely blower fan receiving portions the nearest and equal fraction of centre distance
Wind point, which is divided into the air-supply region above and below the fraction wind point, has one or more air channels respectively
Top air-supply region and bottom air-supply region, and cause to flow to top air-supply region and the bottom is blown the wind in region
Amount proportions constant.
2. air channel backboard according to claim 1, wherein
The ratio of the distance of two fraction wind points away from the blower fan receiving portion center and the blower fan radius selected from 1.5 to
A numerical value between 2.5.
3. air channel backboard according to claim 2, wherein,
The top air-supply region includes multiple top supply air ducts, and point wind point formed between the top supply air duct is top
2 fraction wind points, the distance of 2 fraction wind point of the top to the blower fan receiving portion center is equal and is more than the fraction wind
The distance of point to the blower fan receiving portion center, so as to flow into the air quantity proportions constant of each top supply air duct.
4. air channel backboard according to claim 3, wherein
The quantity of the plurality of top supply air duct is three；And
Top supply air duct in three top supply air ducts in circumferentially intermediate position is provided with throttle setting, with controlled
Ground opening and closing.
5. air channel backboard according to claim 4, wherein
The bottom air-supply region includes multiple bottom supply air ducts, and point wind point formed between the bottom supply air duct is bottom
2 fraction wind points, the distance of 2 fraction wind point of the bottom to the blower fan receiving portion center is equal and is more than the fraction wind
The distance of point to the blower fan receiving portion center, so as to flow into the air quantity proportions constant of each bottom supply air duct.
6. air channel backboard according to claim 5, wherein
The quantity of the plurality of bottom supply air duct is two.
7. air channel backboard according to claim 6, wherein
Distance of the 2 fraction wind point of multiple tops away from the blower fan receiving portion center is with two fraction wind points away from institute
The ratio for stating the distance at blower fan receiving portion center is selected from a numerical value between 1.1 to 1.5；
Distance of the 2 fraction wind point of multiple bottoms away from the blower fan receiving portion center is with two fraction wind points away from institute
The ratio for stating the distance at blower fan receiving portion center is selected from a numerical value between 1.1 to 1.5.
8. air channel backboard according to claim 6, wherein
At least partially logarithmic spiral curved surface of the windward side of the wind path wall of two bottom supply air ducts or Archimedes
Curved surface.
9. air channel backboard according to claim 1, wherein
The blower fan receiving portion is offered for the air intake opening to air intake in the air channel backboard, the blower fan receiving portion it is interior
Side is provided with the ring mounts for installing centrifugal blower；
The air channel lid for limiting the blower fan receiving portion and the air-supply region together is provided with front side of the air channel backboard
Plate, the air duct cover board offer the multiple air outlets with multiple air channel insertions, so that the cold wind in multiple air channels
Flow out via multiple air outlets.
10. a kind of refrigerator, including：
Casing, defines refrigerating chamber and the storeroom above the refrigerating chamber in which；
Air channel backboard according to any one of claim 1 to 9, is arranged at the back of the refrigerating chamber；
Blower fan, is arranged in the air channel backboard；And
Air duct cover board, is arranged at the front side of the air channel backboard and the blower fan, wherein
Top supply air duct in three top supply air ducts in circumferentially intermediate position is connected with the storeroom, other
The air channel is connected with the refrigerating chamber.
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| CN201610887635.7A CN106524634B (en) | 2016-10-11 | 2016-10-11 | Refrigerator and air duct backboard for refrigerator |
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| CN201610887635.7A CN106524634B (en) | 2016-10-11 | 2016-10-11 | Refrigerator and air duct backboard for refrigerator |
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| CN106524634B CN106524634B (en) | 2019-02-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107421216A (en) * | 2017-05-02 | 2017-12-01 | 海信（山东）冰箱有限公司 | A kind of ducting assembly and refrigerator for multi-temperature zone refrigerating chamber |
| CN107702412A (en) * | 2017-11-07 | 2018-02-16 | 合肥华凌股份有限公司 | Ducting assembly and there is its refrigerator |
| CN109974370A (en) * | 2019-03-11 | 2019-07-05 | 青岛海尔电冰箱有限公司 | Wind cooling refrigerator |
| JP2020506364A (en) * | 2017-06-29 | 2020-02-27 | チンダオ ハイアール ジョイント ストック カンパニー リミテッドＱｉｎｇｄａｏ Ｈａｉｅｒ Ｊｏｉｎｔ Ｓｔｏｃｋ Ｃｏ．，Ｌｔｄ | refrigerator |
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| JP2013145082A (en) * | 2012-01-16 | 2013-07-25 | Mitsubishi Electric Corp | Freezing refrigerator |
| CN103673466A (en) * | 2012-09-14 | 2014-03-26 | 海信（山东）冰箱有限公司 | Centrifugal fan refrigerator air duct structure and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013145082A (en) * | 2012-01-16 | 2013-07-25 | Mitsubishi Electric Corp | Freezing refrigerator |
| CN103673466A (en) * | 2012-09-14 | 2014-03-26 | 海信（山东）冰箱有限公司 | Centrifugal fan refrigerator air duct structure and refrigerator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421216A (en) * | 2017-05-02 | 2017-12-01 | 海信（山东）冰箱有限公司 | A kind of ducting assembly and refrigerator for multi-temperature zone refrigerating chamber |
| CN107421216B (en) * | 2017-05-02 | 2020-10-02 | 海信（山东）冰箱有限公司 | Air duct assembly for multi-temperature-zone refrigerating chamber and refrigerator |
| JP2020506364A (en) * | 2017-06-29 | 2020-02-27 | チンダオ ハイアール ジョイント ストック カンパニー リミテッドＱｉｎｇｄａｏ Ｈａｉｅｒ Ｊｏｉｎｔ Ｓｔｏｃｋ Ｃｏ．，Ｌｔｄ | refrigerator |
| CN107702412A (en) * | 2017-11-07 | 2018-02-16 | 合肥华凌股份有限公司 | Ducting assembly and there is its refrigerator |
| CN107702412B (en) * | 2017-11-07 | 2021-03-19 | 合肥华凌股份有限公司 | Air duct assembly and refrigerator with same |
| CN109974370A (en) * | 2019-03-11 | 2019-07-05 | 青岛海尔电冰箱有限公司 | Wind cooling refrigerator |
| CN109974370B (en) * | 2019-03-11 | 2020-12-04 | 青岛海尔电冰箱有限公司 | Air-cooled refrigerator |
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| Publication number | Publication date |
|---|---|
| CN106524634B (en) | 2019-02-15 |
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