CN105698465B - Refrigerating device - Google Patents
Refrigerating device Download PDFInfo
- Publication number
- CN105698465B CN105698465B CN201610206127.8A CN201610206127A CN105698465B CN 105698465 B CN105698465 B CN 105698465B CN 201610206127 A CN201610206127 A CN 201610206127A CN 105698465 B CN105698465 B CN 105698465B
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- Prior art keywords
- air
- return air
- evaporator
- wind
- refrigerating
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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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 present invention relates to a kind of refrigerating device, including：Babinet inside defines refrigerating chamber and refrigerating chamber, for providing the cooling chamber of cooling air-flow, refrigeration air -return duct for refrigerating chamber and refrigerating chamber；And evaporator, it is arranged in cooling chamber, and is configured to and flows through its air-flow and carry out heat exchange；Cooling chamber is located at behind refrigerating chamber, and passes through the back shroud of refrigerating chamber and refrigerating chamber is separated by, and the two bottom sides end of back shroud offers the freezing return air inlet of connection cooling chamber and refrigerating chamber respectively, the return air from refrigerating chamber to be allowed to be back to cooling chamber；The rear wall bottom of cooling chamber offers the refrigeration return air inlet connected with refrigeration air -return duct；Projection of two freezing return air inlets in the perpendicular extended transversely is located at the both lateral sides of projection of the refrigeration return air inlet in the perpendicular respectively, so that the return air from refrigerating chamber flows to the central region of evaporator, so that the return air from refrigerating chamber flows to two end regions of evaporator respectively.
Description
Technical field
The present invention relates to refrigerating technology, more particularly to a kind of refrigerating device.
Background technology
Wind cooling refrigerator is very popular when hardly generating frosting on the wall of inner container of its babinet.However, in wind cooling refrigerator
In actual moving process, not all no solidifying frost is formed at all positions of wind cooling refrigerator, is merely creating and is coagulated white position from case
The wall of inner container of body is transferred to the evaporator surface of refrigerator.Evaporator surface frosting can increase the flowing resistance for the air for flowing through evaporator
Heat exchanged thermoresistance between power and evaporator and air, so as to influence the refrigerating capacity of wind cooling refrigerator.Thus, it is desirable to evaporator into
Row periodically defrosting.
At present, the electrically heated mode of generally use defrosts to evaporator in the prior art.However, come in the prior art
The subregion of evaporator is generally all separately blowed to from the return air of multiple storing compartments of wind cooling refrigerator, causes evaporator
On frosting compare concentration, and frost layer is thicker.This not only influences whether the defrosting effect of evaporator, also results in heater and is produced
The waste of raw heat.Incomplete statistics according to the insiders, in the prior art, heat generally only has caused by heater
15%~20% is effectively used to defrost to evaporator, and remaining heat is substantially all for the indoor gas of heating evaporation device
Stream, causes the temperature in entire wind cooling refrigerator to raise.After evaporator defrosts, when freezing again to storing compartment,
It needs the long period that could recover the temperature before defrosting, adds additional the energy consumption of wind cooling refrigerator.
The content of the invention
One object of the present invention is intended to overcome at least one defect of the prior art, and it is high to provide a kind of defrosting efficiency
Refrigerating device.
Another object of the present invention is the heat exchange efficiency for the evaporator for improving refrigerating device.
A further object of the present invention is to improve the refrigerating capacity and effect of refrigerating device.
To achieve these goals, the present invention provides a kind of refrigerating device, including：
Babinet, inside define arrange for storage article and up and down refrigerating chamber and refrigerating chamber, for for the refrigeration
Room and the refrigerating chamber provide the cooling chamber of cooling air-flow and are back to for return air of the confession from the refrigerating chamber described cold
But the refrigeration air -return duct of room；And
Evaporator is arranged in the cooling chamber, and is configured to and is flowed through its air-flow and carry out heat exchange, with described in cooling
Air-flow；Wherein
The cooling chamber is located at behind the refrigerating chamber, and the back shroud by the refrigerating chamber and the refrigerating chamber phase
Every, the two bottom sides end of the back shroud offers the freezing return air inlet for connecting the cooling chamber and the refrigerating chamber respectively, with
The return air from the refrigerating chamber is allowed to be back to the cooling chamber；
The rear wall bottom of the cooling chamber offers the refrigeration return air inlet connected with the refrigeration air -return duct；And
Projection of two freezing return air inlets in the perpendicular extended transversely is located at the refrigeration return air respectively
The both lateral sides of projection of the mouth in the perpendicular, so that the return air from the refrigerating chamber is flowed in the evaporator
Portion region causes the return air from the refrigerating chamber to flow to two end regions of the evaporator respectively.
Optionally, the refrigerating device further includes：
Heating unit is arranged in the cooling chamber, and is configured to controllably carry out heating defrosting to the evaporator；With
And
Return air wind-guiding mouth is arranged between the air outlet of the refrigeration air -return duct and the refrigeration return air inlet, and is configured to
Return air in the refrigeration air -return duct is guided according to the wind path of setting to the central region of the evaporator, so that flowing through institute
That states evaporator central region returns corresponding evaporation when air volume adjustment defrosts to the evaporator with the heating unit
Heat distribution is consistent caused by the central region of device.
Optionally, the return air wind-guiding mouth is internally provided at least two return air wind deflectors, by the return air wind-guiding
The inner space of mouth is divided at least three return air air-guiding aisles；And
Location arrangements of at least two return air wind deflectors inside the return air wind-guiding mouth are into passing through by described
The transverse ends of return air wind-guiding mouth thereto between return air amount in the return air air-guiding aisle that is arranged in order it is incremented by successively.
Optionally, the quantity of the return air wind deflector is two；And
Two return air wind deflectors are arranged so that two ends of the transverse ends positioned at the return air wind-guiding mouth are returned
The cross-sectional area of the air inlet of wind air-guiding aisle and a middle part between two end return air air-guiding aisles are returned
Ratio between the cross-sectional area of the air inlet of wind air-guiding aisle is 1:1:2~1:1:Any ratio between 4.
Optionally, the return air wind-guiding mouth is configured to the air current flow direction flaring along in it；And
The air outlet of the return air wind-guiding mouth is connected with the refrigeration return air inlet, and the refrigeration return air inlet is in the horizontal
The equivalent width of the air outlet of width and the return air wind-guiding mouth in the horizontal.
Optionally, the width of width and two freezing return air inlets in the horizontal of the refrigeration return air inlet in the horizontal
The sum of be equal to the width of the evaporator in the horizontal.
Optionally, the upper end of each freezing return air inlet be respectively positioned in the vertical direction the evaporator lower four/
Between one and lower 1/3rd of the evaporator.
Optionally, the vertical decile plane that along its depth direction extends of two freezing return air inlets on the babinet
It is symmetrical arranged.
Optionally, the refrigerating device further includes：
Wind turbine is arranged in the cooling chamber and is located at the evaporation in the indoor air current flow direction of cooling
The downstream of device, with promote air-flow between the refrigerating chamber and the cooling chamber and the refrigerating chamber and the cooling chamber it
Between circulate；And
It blows wind-guiding mouth, is arranged between the evaporator and the wind turbine, and be configured to will be through the evaporator heat exchange
Air-flow afterwards is guided according to the wind path of setting to the wind turbine.
Optionally, the air current flow direction that the air-supply wind-guiding mouth is configured to along in it is tapered；And
The width of the air inlet of the neighbouring evaporator of the air-supply wind-guiding mouth in the horizontal is with the evaporator in horizontal stroke
Upward equivalent width.
Since the indoor humidity of refrigeration is relatively high, the indoor humidity of freezing is relatively low, returning from refrigerating chamber
Moisture contained by wind is bigger than the moisture contained by the return air from refrigerating chamber, it is easier to form frosting on an evaporator.Also, right
When evaporator carries out heating defrosting, heat mostly concentrates on the central region of evaporator.Refrigerating device of the invention as a result,
By refrigerate return air inlet and two freezing return air inlets transversely on position be arranged so that two freezing return air inlets transversely prolonging
Projection in the perpendicular stretched is located at the both lateral sides of projection of the refrigeration return air inlet in the perpendicular respectively, so as to make
Return air from refrigerating chamber and the return air from refrigerating chamber can blow to evaporator from opposite both sides and (freeze return air from evaporator
Lower front blow to evaporator, refrigeration return air blows to evaporator from the back lower of evaporator), the return air energy from refrigerating chamber
Enough flow to the central region of evaporator, the return air from refrigerating chamber can flow to two end regions of evaporator respectively, so as to
The solidifying frost on evaporator is made to be concentrated mainly on its central region, sufficiently and reasonably to utilize heat when evaporator defrosts, is carried
The high defrosting efficiency of evaporator.
Further, refrigerating device of the invention is by setting return air wind-guiding mouth larger to the humidity from refrigerating chamber
Return air guide so that the distribution and heating unit for flowing through the return air amount of the central region of evaporator add evaporator
The heat that central region generation is corresponded to during heat defrosting is distributed unanimously, so that the solidifying frost generated in evaporator central region
The heat distribution that distribution is generated with heating unit in the region is consistent.It is not only able to avoid the small model of the part on evaporator as a result,
It encloses and white blocked up, defrosting time, the defrosting efficiency of raising evaporator so as to shorten evaporator is coagulated in region, but also can make to add
The heat that thermal generates is mainly used for defrosting to evaporator, so as to which the heat progress generated to heating unit is rationally effective
Ground utilizes, so as to reduce the energy consumption of refrigerating device.
Further, due to refrigeration return air inlet width in the horizontal with two freeze the width of return air inlets in the horizontal it
With the width equal to evaporator in the horizontal.Therefore, the return air from refrigerating chamber and refrigerating chamber can relatively evenly flow through evaporation
Device so that with air-flow heat exchange can occur for all areas of the evaporator on its entire width, improves steaming
Send out the heat exchange efficiency of device.Simultaneously as the defrosting effect and defrosting efficiency of the evaporator of the refrigerating device of the present invention compare
It is higher, further increase the heat exchange efficiency of evaporator.
Further, since the refrigerating device of the present invention further includes wind turbine and is arranged between wind turbine and evaporator
Air-supply wind-guiding mouth, the air-flow after evaporator heat exchange therefore, can be guided to wind turbine according to the wind path of setting, avoid air-flow in wind
Turbulent flow, sinuous flow or mixed flow phenomenon are generated in regional area between machine and evaporator, reduces the resistance in air-flow flow process,
The flowing velocity of the air-flow after heat exchange is improved, so as to improve the refrigerating capacity of refrigerating device and refrigeration effect.Meanwhile
The present invention by be located at evaporator downstream air-supply wind-guiding mouth and positioned at vaporizer upstream return air wind-guiding mouth mutual cooperation and
Collective effect enables at least part return air according to the wind path of setting through the heat exchange fin gap of evaporator, so as to certain
Air-flow is reduced in degree and flows through resistance suffered during evaporator, further improves the refrigerating capacity and effect of refrigerating device
Fruit.
According to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
Some specific embodiments of detailed description of the present invention by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the schematic diagram of refrigerating device according to an embodiment of the invention；
Fig. 2 is that refrigerating device according to an embodiment of the invention conceals showing for component is contained in door body and cooling chamber
Meaning property front view；
Fig. 3 is another schematic diagram of refrigerating device according to an embodiment of the invention；
Fig. 4 is that the heating unit of refrigerating device according to an embodiment of the invention heats when defrosting evaporator
Schematic thermal profile；
Fig. 5 is the schematic frosting distribution map of the evaporator of refrigerating device according to an embodiment of the invention；
Fig. 6 is the schematically time air volume adjustment of the evaporator according to an embodiment of the invention for flowing through refrigerating device
Figure；
Fig. 7 is the schematic diagram of the refrigeration return air channel of refrigerating device according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention provides a kind of refrigerating device 1, and Fig. 1 is refrigerating according to an embodiment of the invention
The schematic diagram of device, Fig. 2 are that refrigerating device according to an embodiment of the invention is concealed in door body and cooling chamber
The schematic elevational view for containing component (specifically, has concealed evaporator 20 and heating unit 30, in order to observe two in Fig. 2
Freeze return air inlet 121,122 and refrigerate the position relationship between return air inlet 141), Fig. 3 is according to an embodiment of the invention cold
Another schematic diagram of refrigerating plant is hidden, the straight arrows shown in Fig. 3 are the air current flow direction in respective channel.Ginseng
See Fig. 1 to Fig. 3, refrigerating device 1 includes：Babinet 10 inside defines the refrigerating chamber arranged for storage article and up and down
11 and refrigerating chamber 12, for cooling chamber 14 that cooling air-flow is provided for refrigerating chamber 11 and refrigerating chamber 12 and for self cooling for coming
The return air for hiding room 11 is back to the refrigeration air -return duct 15 of cooling chamber 14；And evaporator 20, it is arranged in cooling chamber 14, and configures
Heat exchange is carried out into flowing through its air-flow, to cool down the air-flow.Specifically, refrigerating chamber 11 is used to provide refrigeration work(to the user
Can, in temperature be usually arranged as 4 DEG C~7 DEG C.Refrigerating chamber 12 can be located at the lower section of refrigerating chamber 11, for providing speed to the user
Freeze, functions, the temperature in refrigerating chamber 12 such as freezing are usually arranged as -24 DEG C~-4 DEG C.Evaporator 20 has multiple be alternatively arranged
Heat exchange straight tube 21 and the two neighboring heat exchange straight tube 21 of connection end in the same direction multiple U-tubes 22, exchange heat straight tube 21 and U-shaped
Circulation is useful for the heat transferring medium to exchange heat with air-flow in pipe 22.Multiple spaced heat exchange are equipped on heat exchange straight tube 21
When air-flow flows through the heat exchange gap between multiple heat exchange fins 23 with heat exchange fin 23 heat exchange occurs for fin 23, so as to change
The temperature of air-flow, is allowed to cool.
Further, refrigerating device 1 may also include at least one door body, pivotly or with can pushing and pulling be connected to
Babinet 10.Specifically, refrigerating device 1 includes being used to open and/or closing the first door body 81 of refrigerating chamber 11 and be used for
Open and/or close the second door body 82 of refrigerating chamber 12.
Particularly, cooling chamber 14 is located at behind refrigerating chamber 12, and passes through the back shroud 123 of refrigerating chamber 12 and refrigerating chamber 12
It is separated by, the two bottom sides end of back shroud 123 offers the freezing return air inlet 121 of connection cooling chamber 14 and refrigerating chamber 12 and cold respectively
Freeze return air inlet 122, the return air from refrigerating chamber 12 to be allowed to be back to cooling chamber 14.The rear wall bottom of cooling chamber 14 offer with
Refrigerate the refrigeration return air inlet 141 that air -return duct 15 connects.That is, on the depth direction of babinet 10, return air inlet 121 is freezed,
122 are located at the front side of evaporator 20, and refrigeration return air inlet 141 is located at the rear side of evaporator 20.123 bottom of back shroud be located at its two
Center section between a side is connected to the liner bottom wall of refrigerating chamber 12, and evaporator 20 is blowed to avoid the return air of refrigerating chamber 12
Central region.
Further, two freezing 121,122 projections in the perpendicular extended transversely of return air inlet are located at respectively
The both lateral sides of projection of the return air inlet 141 in the perpendicular are refrigerated, so that the flow direction evaporation of the return air from refrigerating chamber 11
The central region of device 20 causes the return air from refrigerating chamber 12 to flow to two end regions of evaporator 20 respectively.That is,
In the horizontal, two freezing return air inlets 121,122 are located at the both sides of refrigeration return air inlet 141, and two freezing return air inlets respectively
121,122 projection with refrigeration return air inlet 141 in the perpendicular extended transversely is not overlapped.The end regions of evaporator 20
Mean its neighbouring transverse ends edge, region with one fixed width, with rule or irregular shape, evaporator 20
Central region means the region with one fixed width between two end regions of evaporator 20.
It will be appreciated by persons skilled in the art that due to the humidity in refrigerating chamber 11 is relatively high, in refrigerating chamber 12
Humidity is relatively low, therefore moisture of the moisture contained by the return air from refrigerating chamber 11 contained by than the return air from refrigerating chamber 12
Greatly, it is easier to form frosting on evaporator 20.Also, when carrying out heating defrosting to evaporator 20, heat mostly concentrates on
The central region of evaporator 20.Refrigerating device 1 of the invention will refrigerate return air inlet 141 and two freezing return air inlets as a result,
121,122 transversely on position be arranged so that two freezing return air inlets 121,122 in the perpendicular extended transversely
Projection be located at the both lateral sides of projection of the refrigeration return air inlet 141 in the perpendicular respectively, so as to make from refrigerating chamber
12 return air and return air from refrigerating chamber 11 can blow to evaporator 20 from opposite both sides, and (freezing return air is from evaporator 20
Lower front blows to evaporator 20, and the back lower of refrigeration return air from evaporator 20 blows to evaporator 20), from refrigerating chamber 11
Return air can flow to the central region of evaporator 20, the return air from refrigerating chamber 12 can flow to two ends of evaporator 20 respectively
Portion region, so that the solidifying frost on evaporator 20 is concentrated mainly on its central region, sufficiently and reasonably to utilize evaporator 20
Heat during defrosting improves the defrosting efficiency of evaporator 20.
In some embodiments of the invention, each the upper end of freezing return air inlet is respectively positioned on evaporator 20 in the vertical direction
Lower a quarter and evaporator 20 lower 1/3rd between.That is, freezing return air inlet 121 and freezing return air inlet 122
Upper end be above at the lower a quarter of evaporator 20 and less than lower 1/3rd of evaporator 20 at.Under evaporator 20
Mean the position where the horizontal bisector of a quarter of its neighbouring lower end of evaporator 20, similarly, evaporator at a quarter
Mean the position where 1/3rd horizontal bisectors of its neighbouring lower end of evaporator 20 at lower 1/3rd of 20.As a result,
It can either avoid the height of freezing return air inlet is too low the flow path for freezing return air is caused to extend, can not effectively flow to evaporator 20
The problem of, but the excessive height of freezing return air inlet can be avoided to cause to blow air-flow and return air stream are disorderly, return air heat exchange is not thorough
The problems such as bottom.
In some embodiments of the invention, two freezing return air inlets 121,122 on babinet 10 along its depth direction
The vertical decile plane of extension is symmetrical arranged.That is, the position of two freezing return air inlets 121,122 is mutually symmetrical with, and two
The size of a freezing return air inlet 121,122 is identical, so as to flow to the return air amount in two lateral ends regions of evaporator 20 substantially
It is identical.
In order to meet the demand of refrigerating capacity needed for the integral load of refrigerating chamber 11 and refrigerating chamber 12 and each compartment, at this
In some embodiments of invention, two freezing return air inlets 121, the sum of 122 cross-sectional area is with refrigerating the transversal of return air inlet 141
Face area ratio is substantially equal to the ratio between the refrigerating capacity of refrigerating chamber 12 and the refrigerating capacity of refrigerating chamber 11.That is, it entirely freezes back
The respective required system of the ratio between the cross-sectional area in air port and cross-sectional area of entire refrigeration return air inlet and refrigerating chamber and refrigerating chamber
Ratio between cold is identical.Refrigerating chamber 11 and refrigerating chamber 12 can realize normal refrigeration effect as a result,.
In some embodiments of the invention, refrigerating device 1 further includes：Heating unit 30 is arranged at cooling chamber 14
It is interior, and be configured to controllably carry out heating defrosting to evaporator 20；And return air wind-guiding mouth 50, it is arranged at refrigeration air -return duct 15
Air outlet and refrigeration return air inlet 141 between, and be configured to by refrigerate air -return duct 15 in return air according to the wind path of setting guide to
The central region of evaporator 20, so that flow through 20 central region of evaporator returns air volume adjustment and heating unit 30 to evaporator
20 correspond to heat distribution caused by the central region of evaporator 20 unanimously when being defrosted.
That is, the refrigerating device 1 of the present invention is by setting return air wind-guiding mouth 50 to from the wet of refrigerating chamber 11
It spends larger return air to guide so that flow through the distribution of the return air amount of the central region of evaporator 20 with heating unit 30 to steaming
The heat distribution that hair device 20 corresponded to during heating defrosting central region generation is consistent, so that 20 central region of evaporator
The heat distribution that the distribution of the solidifying frost of upper generation is generated with heating unit 30 in the region is consistent.It is not only able to avoid steaming as a result,
It sends out and defrosting time, raising evaporator 20 white blocked up, so as to shorten evaporator 20 is coagulated in the local small range region on device 20
Defrosting efficiency, but also can make heating unit 30 generate heat be mainly used for defrosting to evaporator 20, so as to pair plus
The heat that thermal 30 generates rationally and effectively is utilized, so as to reduce the energy consumption of refrigerating device 1.
Due to effective heat exchange area of evaporator 20 or main heat exchange area, for it to be equipped with the heat exchange of heat exchange fin 23 straight
Region where pipe 21, therefore heat distribution, the evaporation that the heating unit 30 in the embodiment of the present invention generates on evaporator 20
Frosting distribution on device 20 etc. is for the region with heat exchange fin 23 of evaporator 20.
It will be understood by those skilled in the art that the type of heating unit 30, arrangement, parameter (such as rated power) or its
He is related to set difference, and the distribution of generated heat is also different when heating defrosting to evaporator 20,50 energy of return air wind-guiding mouth
The wind path for enough leading back to wind flow also differs.That is, the configuration of the return air wind-guiding mouth 50 in the embodiment of the present invention is based on
Type selecting, structure, position and setup parameter of heating unit 30 etc..
Fig. 4 is that the heating unit of refrigerating device according to an embodiment of the invention heats when defrosting evaporator
Schematic thermal profile, Fig. 5 are the schematic frostings of the evaporator of refrigerating device according to an embodiment of the invention
Distribution map, Fig. 6 are the schematically time air volume adjustments of the evaporator according to an embodiment of the invention for flowing through refrigerating device
Figure.The designer of the present invention has found that the heating unit 30 for defrosting to evaporator 20 is generally disposed at evaporator 20
Lower section, specifically, in embodiments of the present invention, heating unit 30 can be the electric heater unit for being arranged at 20 lower section of evaporator,
Such as electric heating wire or electric heating tube etc..At this point, the heat distribution that heating unit 30 heats evaporator 20 when defrosting can be found in
Fig. 4, heating unit 30 correspond to heat distribution caused by evaporator 20 substantially a semicircular area of the top of heating unit 30,
Or parabola and the horizontal line area defined region of hatching (i.e. in Fig. 4 have) below the parabola.
All in all, what distribution of the heat that heating unit 30 generates on evaporator 20 was substantially successively decreased successively from centre to both sides becomes
Gesture.Therefore, the frosting distribution on evaporator 20 also should successively successively decrease from the centre of evaporator 20 to its both sides (on evaporator 20
Frosting distribution referring to the region in Fig. 5 with hatching), similarly should for this purpose, flowing through the distribution of the return air amount of evaporator 20
This successively decreases (referring to Fig. 6) successively from the centre of evaporator 20 to its both sides.
The designer of the present invention considers that the return air humidity from refrigerating chamber 11 is larger, it is therefore desirable to particularly self cooling to coming
The return air for hiding air -return duct 15 guides.Fig. 7 is that the refrigeration return air of refrigerating device according to an embodiment of the invention leads to
The schematic diagram in road, the straight arrows shown in Fig. 7 are the air current flow direction in corresponding air passage.Refrigerating device 1
Refrigeration return air channel include refrigeration air -return duct 15 and return air wind-guiding mouth 50.Return air wind-guiding mouth 50 is internally provided at least two
The inner space of return air wind-guiding mouth 50 is divided at least three return air air-guiding aisles by return air wind deflector 51.At least two times
Location arrangements of the wind wind deflector 51 inside return air wind-guiding mouth 50 into the transverse ends passed through from return air wind-guiding mouth 50 to its
The return air amount in return air air-guiding aisle that centre is arranged in order is incremented by successively.That is, be arranged in order from centre to both sides
Return air amount in return air air-guiding aisle is successively decreased successively, and the return air amount in intermediate return air air-guiding aisle is maximum, positioned at both ends
Return air amount in the return air air-guiding aisle of end is minimum.Specifically, at least two return air wind deflectors 51 are arranged so that by centre
The cross-sectional area of the entrance for the return air air-guiding aisle being arranged in order to both sides is sequentially reduced.
Further, in one embodiment of the invention, the quantity of return air wind deflector 51 is two.Two return air wind-guidings
Plate 51 is arranged so that the air inlet of two end return air air-guiding aisles 521,523 of the transverse ends positioned at return air wind-guiding mouth 50
Cross-sectional area and a middle part return air air-guiding aisle 522 between two end return air air-guiding aisles 521,523
Ratio between the cross-sectional area of air inlet is 1:1:2~1:1:Any ratio between 4.Steaming can either be flowed through as a result,
The heat distribution that the distribution of the return air amount of hair 20 central region of device and 30 corresponding 20 central region of evaporator of heating unit generate is big
Cause is consistent, and can simplify the structure of return air wind-guiding mouth 50.That is, two end return air air-guiding aisles 521,523
It can be symmetrical arranged compared with middle part return air air-guiding aisle 522, and the horizontal stroke of the air inlet of two end return air air-guiding aisles 521,523
Ratio between the cross-sectional area of the air inlet of area of section and middle part return air air-guiding aisle 522 can be 1:1:2、1:1:3
Or 1:1:4.Preferably, in embodiments of the present invention, the cross section face of the air inlet of two end return air air-guiding aisles 521,523
Ratio between the cross-sectional area of the air inlet of product and middle part return air air-guiding aisle 522 is 1:1:3, it may be such that flow through as a result,
The air volume adjustment that returns of 20 central region of evaporator corresponds to heat caused by 20 central region of evaporator closest to heating unit 30
Distribution.
In some embodiments of the invention, return air wind-guiding mouth 50 is configured to the air current flow direction flaring along in it.
That is the cross-sectional area of return air wind-guiding mouth 50 gradually increases along the air current flow direction in it, therefore return air wind-guiding mouth 50
Internal air flow rate is less and less.In other words, return air wind-guiding mouth 50 can slow down to a certain extent flows to evaporator
20 air-flow, to increase the time of contact of air-flow and evaporator 20, so as to further improve the heat transfer effect of evaporator 20.
Further, the air outlet 53 of return air wind-guiding mouth 50 is connected with refrigeration return air inlet 141, and refrigerates return air inlet 141 and exist
The equivalent width of the air outlet 53 of width and return air wind-guiding mouth 50 in transverse direction in the horizontal, so that return air wind-guiding mouth 50 and refrigeration
Return air inlet 141 is seamlessly connected.
Further, refrigerate the width in the horizontal of return air inlet 141 and freeze return air inlets 121,122 in the horizontal with two
The sum of width be equal to the width of evaporator 20 in the horizontal.Return air as a result, from refrigerating chamber 11 and refrigerating chamber 12 can be opposite
Evaporator 20 is flowed uniformly through, so that all areas of the evaporator 20 on its entire width can be sent out with air-flow
Heat exchanges, and improves the heat exchange efficiency of evaporator 20.Simultaneously as the evaporator 20 of the refrigerating device 1 of the present invention
Defrosting effect and defrosting efficiency are higher, further increase the heat exchange efficiency of evaporator 20.Evaporator 20 is in the horizontal
Width mean evaporator 20 the heat exchange straight tube 21 for being equipped with heat exchange fin 23 width, that is, the arrangement of heat exchange fin 23
Width.Further, the section of the neighbouring air outlet 53 of return air wind-guiding mouth 50 can forward protrude on the depth direction of babinet 10,
With the gap reduced between air outlet 53 and return air inlet 141 or the seamless company realized between air outlet 53 and return air inlet 141 as far as possible
It connects.
It will be understood by those skilled in the art that " return air relatively evenly flows through evaporator 20 " so-called in the embodiment of the present invention
Mean there is return air process on the width of evaporator 20, i.e. some regions there is no evaporator 20 do not have return air warp
Situation about crossing so as to be sufficiently used the entire heat exchange area of evaporator 20, expands the effective heat exchange area of evaporator 20,
Further improve the heat exchange efficiency of evaporator 20.
Further, thickness of the return air wind-guiding mouth 50 on the depth direction of babinet 10 is less than refrigeration air -return duct 15 at this
Thickness on depth direction, the cross-sectional area to avoid the air inlet of return air wind-guiding mouth 50 is excessive and causes to lead into return air
Air-flow velocity in tuyere 50 strongly reduces.
In some embodiments of the invention, referring to Fig. 1 and Fig. 3, refrigerating device 1 further includes：Wind turbine 70, is arranged at
It is located at the downstream of evaporator 20 in cooling chamber 14 and in the air current flow direction in cooling chamber 14, air-flow to be promoted to refrigerate
It is circulated between room 11 and cooling chamber 14 and between refrigerating chamber 12 and cooling chamber 14；And air-supply wind-guiding mouth 60, it is arranged at
Between evaporator 20 and wind turbine 70, and it is configured to according to the wind path of setting guide the air-flow after evaporator 20 exchanges heat to wind turbine
70.The air-flow after evaporator 20 exchanges heat can be guided as a result, according to the wind path of setting to wind turbine 70, avoid air-flow in wind turbine 70
Turbulent flow, sinuous flow or mixed flow phenomenon are generated in regional area between evaporator 20, reduces the resistance in air-flow flow process,
The flowing velocity of the air-flow after heat exchange is improved, so as to improve the refrigerating capacity of refrigerating device 1 and refrigeration effect.Together
When, air-supply wind-guiding mouth 60 of the present invention by being located at 20 downstream of evaporator and the return air wind-guiding mouth 50 positioned at 20 upstream of evaporator
Cooperate and collective effect enable at least part air-flow according to setting wind path pass through evaporator 20 heat exchange fin 23
Gap flows through resistance suffered during evaporator 20 so as to reduce air-flow to a certain extent, further improves refrigerating
The refrigerating capacity and effect of device 1.
In some embodiments of the invention, the air current flow direction that wind-guiding mouth 60 is configured to along in it of blowing is tapered.
That is the cross-sectional area of air-supply wind-guiding mouth 60 is gradually reduced along the air current flow direction in it, therefore wind-guiding mouth 60 of blowing
Internal air flow rate is increasing.In other words, wind-guiding mouth 60 of blowing can be accelerated to a certain extent through evaporator 20
The air-flow of wind turbine 70 is flowed to after heat exchange, the air-flow after exchanging heat is sent to refrigerating chamber 11, refrigerating chamber 12 or other storings as soon as possible
Compartment, so as to improve the refrigerating capacity of refrigerating device 1 and refrigeration effect.
Further, the width of the air inlet of the neighbouring evaporator 20 of air-supply wind-guiding mouth 60 in the horizontal exists with evaporator 20
Equivalent width in transverse direction.Thereby, it is possible to ensure that the air-flow after evaporator 20 exchanges heat passes almost entirely through air-supply wind-guiding mouth
60 pilot flow direction wind turbine 70, phenomena such as avoiding the outside of fraction flow direction air-supply wind-guiding mouth 60 and generate turbulent flow, mixed flow, into
One step accelerates the speed of air-flow flowing, improves the refrigerating capacity and refrigeration effect of refrigerating device 1.
Due to the setting of return air wind-guiding mouth 50, closer to the middle part of evaporator 20, throughput is relatively bigger, therefore, in order to
The air-flow after the heat exchange of evaporator 20 is more swimmingly guided, reduces air-flow flow resistance as much as possible, in some of the present invention
In embodiment, air-supply wind-guiding mouth 60 is internally provided at least two air-supply wind deflectors 61, the inside for the wind-guiding mouth 60 that will blow
Space is divided at least three air-supply air-guiding aisles.Position cloth of at least two air-supply wind deflectors 61 inside air-supply wind-guiding mouth 60
Be set to pass through by air-supply wind-guiding mouth 60 transverse ends thereto between be arranged in order air-supply air-guiding aisle in air output
It is incremented by successively.That is, the air output from centre into the air-supply air-guiding aisle that both sides are arranged in order successively decreases successively, in being located at
Between air-supply air-guiding aisle in air output it is maximum, the air output in the air-supply air-guiding aisle of both ends end is minimum.Specifically
Ground, at least two air-supply wind deflectors are arranged so that the horizontal stroke of the entrance for the air-supply air-guiding aisle being arranged in order from centre to both sides
Area of section is sequentially reduced.
In some embodiments of the invention, the quantity of air-supply wind deflector 61 can be two.Two air-supply wind deflectors 61
It is arranged so that the cross-sectional area positioned at the air inlet of two ends at both ends air-supply air-guiding aisle 621,623 with being located at two
Between the cross-sectional area of the air inlet of a middle part air-supply air-guiding aisle 622 between end air-supply air-guiding aisle 621,623
Ratio be 1:1:2~1:1:Any ratio between 4.Can either make as a result, just outflow evaporator 20 throughput distribution with
The throughput distribution for flowing through evaporator 20 is consistent as far as possible, to reduce gas-flow resistance, swimmingly guide air-flow, and can be simplified
The structure of air-supply wind-guiding mouth 60.That is, two end air-supply air-guiding aisles 621,623 can blow compared with middle part, wind-guiding leads to
Road 622 is symmetrical arranged, and the cross-sectional area of the air inlet of two end air-supply air-guiding aisles 621,623 and middle part air-supply wind-guiding
Ratio between the cross-sectional area of the air inlet of passage 622 can be 1:1:2、1:1:3 or 1:1:4.Preferably, in the present invention
In embodiment, cross-sectional area and the middle part air-supply air-guiding aisle 622 of the air inlet of two end air-supply air-guiding aisles 621,623
Air inlet cross-sectional area between ratio be 1:1:3, the throughput of outflow evaporator 20 is made to be distributed closest to stream as a result,
Throughput distribution through evaporator 20.
In embodiments of the invention other, the quantity of return air wind deflector 51 and air-supply wind deflector 61 can also be three or
Three or more, to carry out fine division to return air air-guiding aisle and air-supply air-guiding aisle, so as to more precisely control gas
The distribution or distribution of flow.
In other embodiments of the invention, each freeze also can correspondingly set a return air wind-guiding mouth at return air inlet, with
Just the return air from refrigerating chamber 12 is accurately guided, so as to flow through the overall distribution of the throughput of evaporator 20 with adding
Thermal 30 corresponds to heat distribution caused by the overall region at 20 place of evaporator and generally remains consistent.
It will be understood by those skilled in the art that the refrigerating device 1 in the embodiment of the present invention includes but not limited to refrigerator, ice
Cabinet, bar desk, refrigerating box etc. further include other devices for being capable of providing the functions such as refrigeration, alternating temperature, fresh-keeping.
It should also be understood by those skilled in the art that so-called in the embodiment of the present invention " on ", " under ", " interior ", " outer ", " preceding ",
" rear ", " horizontal stroke ", " perpendicular " etc. be used to representing the term of orientation or position relationship be using the real use state of refrigerating device 1 as
For benchmark, these terms are for only for ease of description and understand technical scheme rather than instruction or imply institute
The device or component of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this hair
Bright limitation.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or derive many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other all these variations or modifications.
Claims (9)
1. a kind of refrigerating device, including：
Babinet, inside define arrange for storage article and up and down refrigerating chamber and refrigerating chamber, for for the refrigerating chamber and
The refrigerating chamber provides the cooling chamber of cooling air-flow and for being back to the cooling chamber for the return air from the refrigerating chamber
Refrigeration air -return duct；And
Evaporator is arranged in the cooling chamber, and is configured to and is flowed through its air-flow and carry out heat exchange, to cool down the gas
Stream；Wherein
The cooling chamber is located at behind the refrigerating chamber, and passes through the back shroud of the refrigerating chamber and the refrigerating chamber is separated by,
The two bottom sides end of the back shroud offers the freezing return air inlet for connecting the cooling chamber and the refrigerating chamber respectively, to allow
Return air from the refrigerating chamber is back to the cooling chamber；
The rear wall bottom of the cooling chamber offers the refrigeration return air inlet connected with the refrigeration air -return duct；And
Projection of two freezing return air inlets in the perpendicular extended transversely is located at the refrigeration return air inlet and exists respectively
The both lateral sides of projection in the perpendicular, so that the return air from the refrigerating chamber flows to the middle region of the evaporator
Domain causes the return air from the refrigerating chamber to flow to two end regions of the evaporator respectively；
The refrigerating device further includes：
Heating unit is arranged in the cooling chamber, and is configured to controllably carry out heating defrosting to the evaporator；And
Return air wind-guiding mouth is arranged between the air outlet of the refrigeration air -return duct and the refrigeration return air inlet, and is configured to institute
The return air stated in refrigeration air -return duct is guided according to the wind path of setting to the central region of the evaporator, so that flowing through the steaming
Hair device central region returns corresponding evaporator when air volume adjustment defrosts to the evaporator with the heating unit
Heat distribution is consistent caused by central region.
2. refrigerating device according to claim 1, wherein,
The return air wind-guiding mouth is internally provided at least two return air wind deflectors, by the inner space of the return air wind-guiding mouth
It is divided at least three return air air-guiding aisles；And
Location arrangements of at least two return air wind deflectors inside the return air wind-guiding mouth are into passing through by the return air
The transverse ends of wind-guiding mouth thereto between return air amount in the return air air-guiding aisle that is arranged in order it is incremented by successively.
3. refrigerating device according to claim 2, wherein,
The quantity of the return air wind deflector is two；And
Two return air wind deflectors are arranged so that two end return air of the transverse ends positioned at the return air wind-guiding mouth are led
The cross-sectional area of the air inlet of wind passage and a middle part return air between two end return air air-guiding aisles are led
Ratio between the cross-sectional area of the air inlet of wind passage is 1:1:2~1:1:Any ratio between 4.
4. refrigerating device according to claim 1, wherein,
The return air wind-guiding mouth is configured to the air current flow direction flaring along in it；And
The air outlet of the return air wind-guiding mouth is connected with the refrigeration return air inlet, and the width of the refrigeration return air inlet in the horizontal
With the equivalent width of the air outlet of the return air wind-guiding mouth in the horizontal.
5. refrigerating device according to claim 4, wherein,
The sum of the width of width and two freezing return air inlets in the horizontal of the refrigeration return air inlet in the horizontal is equal to institute
State the width of evaporator in the horizontal.
6. refrigerating device according to claim 1, wherein,
The upper end of each freezing return air inlet is respectively positioned on the lower a quarter of the evaporator and the steaming in the vertical direction
Between send out device lower 1/3rd.
7. refrigerating device according to claim 1, wherein,
Two freezing return air inlets are symmetrical arranged on the vertical decile plane extended along its depth direction of the babinet.
8. refrigerating device according to claim 1, further includes：
Wind turbine is arranged in the cooling chamber and is located at the evaporator in the indoor air current flow direction of cooling
Downstream, with promote air-flow between the refrigerating chamber and the cooling chamber and the refrigerating chamber and the cooling chamber between follow
Circulation moves；And
It blows wind-guiding mouth, is arranged between the evaporator and the wind turbine, and be configured to will be after the evaporator heat exchange
Air-flow is guided according to the wind path of setting to the wind turbine.
9. refrigerating device according to claim 8, wherein,
The air current flow direction that the air-supply wind-guiding mouth is configured to along in it is tapered；And
The width of the air inlet of the neighbouring evaporator of the air-supply wind-guiding mouth in the horizontal with the evaporator in the horizontal
Equivalent width.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206127.8A CN105698465B (en) | 2016-03-31 | 2016-03-31 | Refrigerating device |
| PCT/CN2016/095264 WO2017166575A1 (en) | 2016-03-31 | 2016-08-15 | Refrigerating and freezing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206127.8A CN105698465B (en) | 2016-03-31 | 2016-03-31 | Refrigerating device |
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| CN105698465A CN105698465A (en) | 2016-06-22 |
| CN105698465B true CN105698465B (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610206127.8A Active CN105698465B (en) | 2016-03-31 | 2016-03-31 | Refrigerating device |
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| WO (1) | WO2017166575A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698465B (en) * | 2016-03-31 | 2018-05-29 | 合肥海尔电冰箱有限公司 | Refrigerating device |
| CN105865121B (en) * | 2016-03-31 | 2018-07-13 | 青岛海尔特种电冰箱有限公司 | Refrigerating device |
| CN106885413B (en) * | 2017-03-23 | 2020-03-17 | 海信（山东）冰箱有限公司 | Air guide, air duct structure for air-cooled refrigerator and air-cooled refrigerator |
| KR102627972B1 (en) * | 2018-02-23 | 2024-01-23 | 엘지전자 주식회사 | Refrigerator |
| CN108518914A (en) * | 2018-05-10 | 2018-09-11 | 惠而浦（中国）股份有限公司 | A kind of refrigerator air duct auxiliary heater strip and its refrigerator |
| US10663210B1 (en) | 2019-06-26 | 2020-05-26 | Lineage Logistics, LLC | Blast cell cooling with guided airflow |
| CN113048690B (en) * | 2019-12-26 | 2022-11-11 | 青岛海尔电冰箱有限公司 | Side by side combination refrigerator |
| US11940198B2 (en) | 2021-12-01 | 2024-03-26 | Lineage Logistics, LLC | Automated blast cell loading and unloading |
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| CN105698465B (en) * | 2016-03-31 | 2018-05-29 | 合肥海尔电冰箱有限公司 | Refrigerating device |
| CN105865121B (en) * | 2016-03-31 | 2018-07-13 | 青岛海尔特种电冰箱有限公司 | Refrigerating device |
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| CN101839600A (en) * | 2009-03-20 | 2010-09-22 | 海尔集团公司 | Refrigerating device for preventing blockage of return airway |
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| CN202547235U (en) * | 2012-03-16 | 2012-11-21 | 海尔集团公司 | Return air duct and refrigerator with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105698465A (en) | 2016-06-22 |
| WO2017166575A1 (en) | 2017-10-05 |
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