CN105783374A - Refrigerating and freezing device - Google Patents
Refrigerating and freezing device Download PDFInfo
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- CN105783374A CN105783374A CN201610201185.1A CN201610201185A CN105783374A CN 105783374 A CN105783374 A CN 105783374A CN 201610201185 A CN201610201185 A CN 201610201185A CN 105783374 A CN105783374 A CN 105783374A
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- wind
- vaporizer
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- 238000007710 freezing Methods 0.000 title abstract description 5
- 230000008014 freezing Effects 0.000 title abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 54
- 239000006200 vaporizer Substances 0.000 claims description 128
- 238000004321 preservation Methods 0.000 claims description 28
- 238000010257 thawing Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002301 combined effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
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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 invention relates to a refrigerating and freezing device which comprises a box body, an evaporator, a heating device, a return air mixing channel and a return air guide nozzle. A refrigerating chamber, a temperature changing chamber, a cooling chamber used for providing cooling air flow for the refrigerating chamber and the temperature changing chamber, a refrigerating air return channel and a temperature changing air return channel are defined in the box body. The evaporator is arranged in the cooling chamber and configured to exchange heat with airflow flowing through the evaporator. The heating device is arranged in the cooling chamber and configured to heat and defrost the evaporator in a controlled manner. The return air mixing channel is connected with the tail end of the refrigerating air return channel and the tail end of the temperature changing air return channel so that return air coming from the refrigerating air return channel and return air coming from the temperature changing air return channel can be mixed in the return air mixing channel to then flow to the cooling chamber. The return air guide nozzle is arranged at the tail end of the return air mixing channel and is configured to guide the return air mixed in the return air mixing channel to the part below the evaporator according to a set air way so that distribution of the amount of the return air flowing through the evaporator and distribution of the heat generated when the evaporator is heated and defrosted through the heating device can be consistent.
Description
Technical field
The present invention relates to refrigerating technology, particularly relate to a kind of refrigerating device.
Background technology
Wind cooling refrigerator is very popular because producing frosting on the wall of inner container of its casing hardly.But, in wind cooling refrigerator actual moving process, not all positions of wind cooling refrigerator are formed all without solidifying frost, and the evaporator surface of refrigerator is transferred at the position being merely creating solidifying frost from the wall of inner container of casing.Evaporator surface frosting can increase the heat exchange thermal resistance between flow resistance and vaporizer and the air of the air flowing through vaporizer, thus affecting the refrigerating capacity of wind cooling refrigerator.Thus, it is desirable to vaporizer is regularly defrosted.
At present, prior art generally adopt electrically heated mode vaporizer is defrosted.But, prior art generally all separately blows to from the return air of room between multiple storings of wind cooling refrigerator the subregion of vaporizer, causes that concentration is compared in the frosting on vaporizer, and frost layer is thicker.This not only influences whether the defrosting effect of vaporizer, also results in the waste of heat produced by heater.Incomplete statistics according to the insiders, in prior art, heat produced by heater generally only has 15%～20% to be effectively used to vaporizer is defrosted, and remaining heat is substantially all the air-flow for heating fumigators indoor, causes that the temperature in whole wind cooling refrigerator raises.After vaporizer defrosting terminates, again to when between storing, freeze in room, it is necessary to the long period could recover the temperature before defrosting, adds additional the energy consumption of wind cooling refrigerator.
Summary of the invention
One object of the present invention is intended to overcome at least one defect of the prior art, it is provided that a kind of defrosting efficiency height and the refrigerating device consuming energy low.
Another object of the present invention is the heat exchange efficiency of the vaporizer improving refrigerating device.
Another purpose of the present invention is to improve refrigerating capacity and the effect of refrigerating device.
To achieve these goals, the present invention provides a kind of refrigerating device, including:
Casing, defines the cold room for storing article and temperature-changing chamber, cools down cooling down room and being respectively used to for the cold preservation air-return duct and the alternating temperature air-return duct that flow to described cooling room from the return air of described cold room and the return air of described temperature-changing chamber of air-flow for providing for described cold room and described temperature-changing chamber in it；
Vaporizer, is arranged at described cooling indoor, and is configured to carry out heat exchange with the air-flow flowing through it；
Heater, is arranged at described cooling indoor, and is configured to described vaporizer is controllably heated defrosting；
Return air hybrid channel, is connected with the end of the end of described cold preservation air-return duct and described alternating temperature air-return duct, so that the return air from described cold preservation air-return duct and the return air from described alternating temperature air-return duct flow to described cooling room after mixing in described return air hybrid channel again；And
Return air wind-guiding mouth, it is arranged at the end of described return air hybrid channel, and be configured to according to the wind path set, the mixed return air in described return air hybrid channel is guided the lower section to described vaporizer, so that the heat distribution produced when described vaporizer is heated defrosting by the distribution flowing through the return air amount of described vaporizer with described heater is consistent.
Alternatively, described return air wind-guiding mouth be internally provided with at least two return air wind deflector, be divided at least three return air air-guiding aisle with the inner space by described return air wind-guiding mouth；And
Return air wind deflector described at least two the location arrangements within described return air wind-guiding mouth become to pass through the transverse ends by described return air wind-guiding mouth wherein between return air amount in the described return air air-guiding aisle that is arranged in order be incremented by successively.
Alternatively, the quantity of described return air wind deflector is two；And
The ratio that two described return air wind deflectors are arranged so that between the cross-sectional area of the air inlet of the cross-sectional area of the air inlet of two end return air air-guiding aisles at two ends and a middle part return air air-guiding aisle between two described end return air air-guiding aisles is the arbitrary ratio between 1:1:2～1:1:4.
Alternatively, described return air wind-guiding mouth is configured to along its interior air current flow direction flaring；And
The air outlet of described return air wind-guiding mouth be opened in described cooling room rear wall for being connected for the first return air inlet being back to described cooling chamber interior from the return air of described cold room and described temperature-changing chamber, and the width that the air outlet of described first return air inlet width in the horizontal and described return air wind-guiding mouth is in the horizontal is all consistent with described vaporizer width in the horizontal.
Alternatively, the thickness on the depth direction of described casing air current flow direction along described return air hybrid channel in the described return air hybrid channel is gradually reduced, so that the thickness that described return air wind-guiding mouth is on described depth direction is less than the thickness of described cold preservation air-return duct and described alternating temperature air-return duct.
Alternatively, the described return air hybrid channel cross-sectional area in arbitrary position more than in described cold preservation air-return duct and described alternating temperature air-return duct any one cross-sectional area and less than or equal to the cross-sectional area sum of described cold preservation air-return duct and described alternating temperature air-return duct.
Alternatively, described refrigerating device also includes:
Blower fan, is arranged at described cooling indoor and is positioned at the downstream of described vaporizer on the air current flow direction that described cooling is indoor, to promote air-flow to circulate between described cold room and described cooling room and between described temperature-changing chamber and described cooling room；And
Air-supply wind-guiding mouth, is arranged between described vaporizer and described blower fan, and is configured to guide to described blower fan the air-flow after described evaporator heat exchange according to the wind path set.
Alternatively, described air-supply wind-guiding mouth is configured to along its interior air current flow direction convergent；And
The air inlet of the described vaporizer of vicinity of described air-supply wind-guiding mouth width in the horizontal is consistent with described vaporizer width in the horizontal.
Alternatively, described air-supply wind-guiding mouth be internally provided with at least two air-supply wind deflector, with the inner space by described air-supply wind-guiding mouth be divided at least three air-supply air-guiding aisle；And
Blow described at least two wind deflector the location arrangements one-tenth described air-supply wind-guiding mouth within pass through the transverse ends by described air-supply wind-guiding mouth wherein between air output in the described air-supply air-guiding aisle that is arranged in order be incremented by successively.
Alternatively, it is further defined with in described casing for storing article and being positioned at the refrigerating chamber below described temperature-changing chamber；And
Described cooling room is positioned at after described refrigerating chamber, and be separated by by the back shroud of described refrigerating chamber and described refrigerating chamber, the described refrigerating chamber of connection formed below of described air duct cover board and the second return air inlet of described cooling room, to allow the return air in described refrigerating chamber to be back to described cooling room through described second return air inlet.
In the refrigerating device of the present invention, return air from cold room and the return air from temperature-changing chamber guide the lower section to vaporizer by return air wind-guiding mouth according to the wind path set after mixing in return air hybrid channel, namely the return air of room between multiple storings can be guided by the present invention simultaneously, pass through the heat distribution produced when vaporizer is heated defrosting by the distribution of the overall return air amount of vaporizer with heater consistent, so that the distribution of the solidifying frost of generation is distributed consistent with the heat that heater produces on vaporizer.Thus, it is not only able to avoid solidifying frost in little range areas, the local on vaporizer blocked up, thus shortening the defrosting time of vaporizer, improving the defrosting efficiency of vaporizer, but also the heat that heater produces can be made to be mainly used in vaporizer is defrosted, thus the heat that heater is produced utilizes rationally and effectively, thus reducing the energy consumption of refrigerating device.
Further, owing to the air outlet width in the horizontal of the first return air inlet width in the horizontal of refrigerating device and return air wind-guiding mouth is all consistent with vaporizer width in the horizontal, return air therefore from cold room and temperature-changing chamber can relatively evenly flow through vaporizer, so that all regions that vaporizer is on its whole width all with air-flow generation heat exchange, can improve the heat exchange efficiency of vaporizer.Simultaneously as the defrosting effect of the vaporizer of the refrigerating device of the present invention and defrosting efficiency are all higher, further increasing the heat exchange efficiency of vaporizer.
Further, blower fan and the air-supply wind-guiding mouth being arranged between blower fan and vaporizer is also included due to the refrigerating device of the present invention, therefore, air-flow after evaporator heat exchange can be guided to blower fan according to the wind path set, avoid producing in air-flow regional area between blower fan and vaporizer turbulent flow, sinuous flow or mixed flow phenomenon, reduce the resistance in air current flow process, improve the flowing velocity of the air-flow after heat exchange, thus improve refrigerating capacity and the refrigeration of refrigerating device.Simultaneously, the present invention by be positioned at vaporizer downstream air-supply wind-guiding mouth and be positioned at vaporizer upstream return air wind-guiding mouth cooperate and combined effect makes the return air can according to the wind path set through the heat exchange fin gap of vaporizer, thus reducing resistance suffered during airflow passes vaporizer to a certain extent, further increase refrigerating capacity and the effect of refrigerating device.
According to below in conjunction with the accompanying drawing detailed description to the specific embodiment of the invention, those skilled in the art will understand the above-mentioned of the present invention and other purposes, advantage and feature more.
Accompanying drawing explanation
Some specific embodiments of the present invention are hereinafter described in detail with reference to the accompanying drawings by way of example, and not by way of limitation.Accompanying drawing labelling identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the schematic diagram of refrigerating device according to an embodiment of the invention；
Fig. 2 is another schematic diagram of refrigerating device according to an embodiment of the invention；
Vaporizer is heated schematic thermal profile when defrosting by the heater that Fig. 3 is refrigerating device according to an embodiment of the invention；
Fig. 4 is the schematic frosting scattergram of the vaporizer of refrigerating device according to an embodiment of the invention；
Fig. 5 is the schematic return air amount scattergram of the vaporizer flowing through refrigerating device according to an embodiment of the invention；
Fig. 6 is the schematic diagram of the return air channel of refrigerating device according to an embodiment of the invention.
Detailed description of the invention
A kind of refrigerating device 1, Fig. 1 of embodiment of the present invention offer is the schematic diagram of refrigerating device according to an embodiment of the invention, and Fig. 2 is another schematic diagram of refrigerating device according to an embodiment of the invention.Referring to Fig. 1 and Fig. 2, refrigerating device 1 includes: casing 10, defines the cold room 11 for storing article and temperature-changing chamber 12, cools down cooling down room 14 and being respectively used to for the cold preservation air-return duct 15 and the alternating temperature air-return duct 16 that flow to cooling room 14 from the return air of cold room 11 and the return air of temperature-changing chamber 12 of air-flow for providing for cold room 11 and temperature-changing chamber 12 in it；Vaporizer 20, is arranged in cooling room 14, and is configured to carry out heat exchange with the air-flow flowing through it, to cool down this air-flow；Heater 30, is arranged in cooling room 14, and is configured to vaporizer 20 is controllably heated defrosting.
Specifically, cold room 11 and temperature-changing chamber 12 can be setting up and down, and temperature-changing chamber 12 is positioned at the lower section of cold room 11.Cold room 11 is used for providing the user cold storage function, and its interior temperature is usually arranged as 4 DEG C～7 DEG C.Temperature in temperature-changing chamber 12 can change according to the needs of user or setting, to provide the user cold preservation, the function such as freezing and/or fresh-keeping.Vaporizer 20 has multiple spaced heat exchange straight tube 21 and connects multiple U-tube 22 of end in the same direction of adjacent two heat exchange straight tubes 21, heat exchange straight tube 21 and in U-tube 22 circulation have the heat transferring medium for carrying out heat exchange with air-flow.Heat exchange straight tube 21 being equipped with multiple spaced heat exchange fin 23, with heat exchange fin 23, heat exchange occurring during heat exchange gap between the multiple heat exchange fin 23 of airflow passes, thus changing the temperature of air-flow so that it is cooling.
Further, refrigerating device 1 may also include at least one door body, and it pivotly or can be connected to push-and-pull casing 10.Specifically, refrigerating device 1 includes the first door body 81 for opening and/or close cold room 11 and for opening and/or close the second door body 82 of temperature-changing chamber 12.
Especially, refrigerating device 1 also includes: return air hybrid channel 40, it is connected with the end of the end of cold preservation air-return duct 15 and alternating temperature air-return duct 16, so that the return air from cold preservation air-return duct 15 and the return air from alternating temperature air-return duct 16 flow to cooling room 14 again after mixing in return air hybrid channel 40；And return air wind-guiding mouth 50, it is arranged at the end of return air hybrid channel 40, and be configured to according to the wind path set, the mixed return air in return air hybrid channel 40 is guided the lower section to vaporizer 20, so that the heat distribution produced when vaporizer 20 is heated defrosting by the distribution flowing through the return air amount of vaporizer 20 with heater 30 is consistent.Owing to effective heat exchange area of vaporizer 20 or main heat exchange area are that it is equipped with the region at heat exchange straight tube 21 place of heat exchange fin 23, the heat that therefore heater 30 in the embodiment of the present invention produces on vaporizer 20 is distributed, frosting distribution etc. on vaporizer 20 is all the region with heat exchange fin 23 for vaporizer 20.
It will be understood by those skilled in the art that, the type of heater 30, arrangement, parameter (such as rated power) or other relevant difference is set, when it is to vaporizer 20 heating defrosting, the distribution of produced heat is also different, and the wind path that return air wind-guiding mouth 50 can lead back to wind flow also differs.It is to say, the configuration of the return air wind-guiding mouth 50 in the embodiment of the present invention is based on the type selecting of heater 30, structure, position and setup parameter etc..
It should also be understood by those skilled in the art that and the air current flow direction that the end of air channel alleged in the embodiment of the present invention or passage means along air channel or passage is positioned at the air channel in downstream or the end of passage.Specifically, in embodiments of the present invention, the end of cold preservation air-return duct 15 is the lower end of cold preservation air-return duct 15, and the end of alternating temperature air-return duct 16 is the lower end of alternating temperature air-return duct 16, and the end of return air hybrid channel 40 is the lower end of return air hybrid channel 40.
As can be seen here, the return air of room between multiple storings can be guided by the present invention simultaneously, pass through the heat distribution produced when vaporizer 20 is heated defrosting by the distribution of the overall return air amount of vaporizer 20 with heater 30 consistent, so that the distribution of the solidifying frost of generation is distributed consistent with the heat that heater 30 produces on vaporizer 20.Thus, it is not only able to avoid solidifying frost in the little range areas, local on vaporizer 20 blocked up, thus shortening the defrosting time of vaporizer 20, improving the defrosting efficiency of vaporizer 20, but also the heat that heater 30 produces can be made to be mainly used in vaporizer 20 is defrosted, thus the heat that heater 30 is produced utilizes rationally and effectively, thus reducing the energy consumption of refrigerating device 1.
It will be understood by those skilled in the art that, gas flow temperature and humidity in cold room 11 and temperature-changing chamber 12 are all of a relatively high, it is easier to when flowing through vaporizer 20 from the return air of cold room 11 and temperature-changing chamber 12 on vaporizer 20 and produces solidifying frost, therefore, return air from cold room 11 and temperature-changing chamber 12 is guided by the present invention by return air wind-guiding mouth 50 simultaneously, namely the air channel structure of refrigerating device 1 is simplified, can compare again and guide the return air that humidity is bigger comprehensively and more up hill and dale, thus the frosting distribution relatively accurately controlled on vaporizer 20.
Vaporizer is heated schematic thermal profile when defrosting by the heater that Fig. 3 is refrigerating device according to an embodiment of the invention, Fig. 4 is the schematic frosting scattergram of the vaporizer of refrigerating device according to an embodiment of the invention, and Fig. 5 is the schematic return air amount scattergram of the vaporizer flowing through refrigerating device according to an embodiment of the invention.The designer of the present invention finds, heater 30 for vaporizer 20 is defrosted is generally disposed at the lower section of vaporizer 20, specifically, in embodiments of the present invention, heater 30 can be arranged at the electric heater unit below vaporizer 20, for instance electrical heating wire or electric heating tube etc..Now, heat distribution when heater 30 is to vaporizer 20 heating defrosting can referring to Fig. 3, and heat produced by the corresponding vaporizer 20 of heater 30 is distributed a semicircular area or the parabola above substantially heater 30 and is arranged in the horizontal line area defined (namely Fig. 3 has the region of hatching) below this parabola.All in all, the trend that the heat that heater 30 produces distribution on vaporizer 20 is substantially successively decreased from centre successively to both sides.Therefore, frosting distribution on vaporizer 20 also should be successively decreased from the centre of vaporizer 20 to its both sides successively (frosting vaporizer 20 is distributed referring to the region in Fig. 4 with hatching), for this, the distribution of the return air amount flowing through vaporizer 20 should successively decrease (referring to Fig. 5) from the centre of vaporizer 20 to its both sides too successively.
Fig. 6 is the schematic diagram of the return air channel of refrigerating device according to an embodiment of the invention, and the return air channel of refrigerating device 1 can include cold preservation air-return duct 15, alternating temperature air-return duct 16, return air hybrid channel 40 and return air wind-guiding mouth 50.In some embodiments of invention, referring to Fig. 6, return air wind-guiding mouth 50 be internally provided with at least two return air wind deflector 51, be divided at least three return air air-guiding aisle with the inner space by return air wind-guiding mouth 50.At least two return air wind deflector 51 the location arrangements within return air wind-guiding mouth 50 become to pass through the transverse ends by return air wind-guiding mouth 50 wherein between return air amount in the return air air-guiding aisle that is arranged in order be incremented by successively.It is to say, the return air amount in the return air air-guiding aisle being arranged in order to both sides by centre is successively decreased successively, the centrally located return air amount in return air air-guiding aisle is maximum, and the return air amount of the return air air-guiding aisle being positioned at end, two ends is minimum.Specifically, at least two return air wind deflector 51 is arranged so that the cross-sectional area of the import department of the return air air-guiding aisle being arranged in order to both sides by centre is sequentially reduced.
Further, in one embodiment of the invention, the quantity of return air wind deflector 51 can be two.Two return air wind deflectors 51 are arranged to be positioned at two end return air air-guiding aisles 521 at two ends, ratio between the cross-sectional area of the air inlet of 523 and the cross-sectional area of the air inlet of the middle part return air air-guiding aisle 522 being positioned between two end return air air-guiding aisles 521,523 is the arbitrary ratio between 1:1:2～1:1:4.Thus, the heat distribution that the distribution of the return air amount of vaporizer 20 produces with heater 30 can either be flowed through and generally remain consistent, the structure of return air wind-guiding mouth 50 can be simplified again.That is, two end return air air-guiding aisles 521,523 can be symmetrical arranged relative to middle part return air air-guiding aisle 522, and the ratio between the cross-sectional area of the air inlet of the cross-sectional area of the air inlet of two end return air air-guiding aisles 521,523 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, two end return air air-guiding aisles 521, ratio between the cross-sectional area of the cross-sectional area of the air inlet of 523 and the air inlet of middle part return air air-guiding aisle 522 is 1:1:3, thus, the air volume adjustment that returns that can pass through vaporizer 20 is distributed closest to heat produced by heater 30.
In some embodiments of the invention, return air wind-guiding mouth 50 is configured to along its interior air current flow direction flaring.It is to say, the cross-sectional area of return air wind-guiding mouth 50 is gradually increased along its interior air current flow direction, therefore the air current flow speed within return air wind-guiding mouth 50 is more and more less.In other words, return air wind-guiding mouth 50 can slow down to a certain extent and flow to the air-flow of vaporizer 20, to increase the time of contact of air-flow and vaporizer 20, thus improving the heat transfer effect of vaporizer 20 further.
Further, the air outlet 53 of return air wind-guiding mouth 50 is connected for the first return air inlet 141 being back within cooling room 14 for the return air from cold room 11 and temperature-changing chamber 12 with what be opened in cooling room 14 rear wall, and the width that the air outlet 53 of the first return air inlet 141 width in the horizontal and return air wind-guiding mouth 50 is in the horizontal is all consistent with vaporizer 20 width in the horizontal.Thus, the return air from cold room 11 and temperature-changing chamber 12 can relatively evenly flow through vaporizer 20, so that all regions that vaporizer 20 is on its whole width all with air-flow generation heat exchange, can improve the heat exchange efficiency of vaporizer 20.Simultaneously as the defrosting effect of the vaporizer 20 of the refrigerating device 1 of the present invention and defrosting efficiency are all higher, further increasing the heat exchange efficiency of vaporizer 20.Vaporizer 20 width in the horizontal means the width of the heat exchange straight tube 21 being equipped with heat exchange fin 23 of vaporizer 20, namely the layout width of heat exchange fin 23.Further, the section of the contiguous air outlet 53 of return air wind-guiding mouth 50 can protrude forward on the depth direction of casing 10, to reduce the gap between air outlet 53 and the first return air inlet 141 or to realize the seamless link between air outlet 53 and the first return air inlet 141 as far as possible.
It will be understood by those skilled in the art that, " return air relatively evenly flows through vaporizer 20 " alleged in the embodiment of the present invention means have return air to pass through on the width of vaporizer 20, namely some region not havinging vaporizer 20 does not have the situation of return air process, thus being sufficiently used the whole heat exchange area of vaporizer 20, expand the effective heat exchange area of vaporizer 20, further increase the heat exchange efficiency of vaporizer 20.
In some embodiments of the invention, referring to Fig. 1, the thickness on the depth direction of casing 10 air current flow direction along return air hybrid channel 40 in the return air hybrid channel 40 is gradually reduced, so that the thickness that return air wind-guiding mouth 50 is on depth direction is less than the thickness of cold preservation air-return duct 15 and alternating temperature air-return duct 16.Thus, the air inlet seamless link of return air hybrid channel 40 and cold preservation air-return duct 15, alternating temperature air-return duct 16 and return air wind-guiding mouth 50 can either be realized, ensure that again return air is flowing to return air hybrid channel 40 via cold preservation air-return duct 15 and alternating temperature air-return duct 16 and the change in flow that flowed to during return air wind-guiding mouth 50 by return air hybrid channel 40 is not too large, thus the return air speed relative equilibrium ensured in the whole return air path of refrigerating device 1.
Further, the return air hybrid channel 40 cross-sectional area in arbitrary position more than in cold preservation air-return duct 15 and alternating temperature air-return duct 16 any one cross-sectional area and less than or equal to the cross-sectional area sum of cold preservation air-return duct 15 and alternating temperature air-return duct 16.It is to say, the minimum cross-sectional area of return air hybrid channel 40 is more than the cross-sectional area of cold preservation air-return duct 15, simultaneously also greater than the cross-sectional area of alternating temperature air-return duct 16.The maximum cross-sectional area of return air hybrid channel 40 is less than or equal to the cross-sectional area sum of cold preservation air-return duct 15 and alternating temperature air-return duct 16.Specifically, cold preservation air-return duct 15 and alternating temperature air-return duct 16 can be width and all constant air-guiding aisle of thickness.Thus, can either avoid owing to the cross-sectional area of return air hybrid channel 40 is too small and cause that the resistance that return air enters in return air hybrid channel 40 is excessive, again it can be avoided that owing to the cross-sectional area of return air hybrid channel 40 is excessive and cause that the speed that return air enters in return air hybrid channel 40 reduces rapidly.
In some embodiments of the invention, refrigerating device 1 also includes: blower fan 70, it is arranged at the downstream being positioned at vaporizer 20 on the air current flow direction in cooling room 14 and in cooling room 14, to promote air-flow to circulate between cold room 11 and cooling room 14 and between temperature-changing chamber 12 and cooling room 14；And air-supply wind-guiding mouth 60, it is arranged between vaporizer 20 and blower fan 70, and is configured to guide to blower fan 70 air-flow after vaporizer 20 heat exchange according to the wind path set.Thus, air-flow after vaporizer 20 heat exchange can be guided to blower fan 70 according to the wind path set, avoid producing in air-flow regional area between blower fan 70 and vaporizer 20 turbulent flow, sinuous flow or mixed flow phenomenon, reduce the resistance in air current flow process, improve the flowing velocity of the air-flow after heat exchange, thus improve refrigerating capacity and the refrigeration of refrigerating device 1.Simultaneously, the present invention by be positioned at vaporizer 20 downstream air-supply wind-guiding mouth 60 and be positioned at vaporizer 20 upstream return air wind-guiding mouth 50 cooperate and combined effect makes the air-flow can according to the wind path set heat exchange fin 23 gap through vaporizer 20, thus reducing resistance suffered during airflow passes vaporizer 20 to a certain extent, further increase refrigerating capacity and the effect of refrigerating device 1.
In some embodiments of the invention, air-supply wind-guiding mouth 60 is configured to along its interior air current flow direction convergent.It is to say, the cross-sectional area of air-supply wind-guiding mouth 60 is gradually reduced along its interior air current flow direction, therefore air-supply air current flow speed within wind-guiding mouth 60 is increasing.In other words, air-supply wind-guiding mouth 60 can accelerate to flow to the air-flow of blower fan 70 to a certain extent after vaporizer 20 heat exchange, the air-flow after heat exchange to be sent to as soon as possible room between cold room 11, temperature-changing chamber 12 or other storings, thus improve refrigerating capacity and the refrigeration of refrigerating device 1.
Further, the air inlet of the contiguous vaporizer 20 of air-supply wind-guiding mouth 60 width in the horizontal is consistent with vaporizer 20 width in the horizontal.Thus, ensure that the air-flow after evaporator 20 heat exchange passes almost entirely through the pilot flow direction blower fan 70 of air-supply wind-guiding mouth 60, fraction is avoided to flow to the outside of air-supply wind-guiding mouth 60 and produce the phenomenon such as turbulent flow, mixed flow, further speed up the speed of air current flow, improve refrigerating capacity and the refrigeration of refrigerating device 1.
Setting due to return air wind-guiding mouth 50, flowing through the throughput of vaporizer 20 central region, relatively to flow through the throughput of vaporizer 20 end regions bigger, therefore, in order to guide the air-flow after vaporizer 20 heat exchange more swimmingly, reduce air current flow resistance as much as possible, in some embodiments of the invention, air-supply wind-guiding mouth 60 be internally provided with at least two air-supply wind deflector 61, with by air-supply wind-guiding mouth 60 inner space be divided at least three air-supply air-guiding aisle.At least two air-supply wind deflector 61 the location arrangements that air-supply wind-guiding mouth 60 is internal become to pass through the transverse ends by air-supply wind-guiding mouth 60 wherein between the air output blown in air-guiding aisle that is arranged in order be incremented by successively.It is to say, the air output blown in air-guiding aisle being arranged in order to both sides by centre successively decreases successively, the centrally located air output in air-supply air-guiding aisle is maximum, and the air output of the air-supply air-guiding aisle being positioned at end, two ends is minimum.Specifically, at least two air-supply wind deflector is arranged so that the cross-sectional area of the import department of the air-supply air-guiding aisle being arranged in order to both sides by centre 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 are arranged to be positioned at two end air-supply air-guiding aisles 621 at two ends, ratio between the cross-sectional area of the air inlet of 623 and the cross-sectional area of the air inlet of the middle part air-supply air-guiding aisle 622 being positioned between two end air-supply air-guiding aisles 621,623 is the arbitrary ratio between 1:1:2～1:1:4.Thus, it is consistent with the throughput distribution flowing through vaporizer 20 to make the throughput distribution just having flowed out vaporizer 20, to reduce gas-flow resistance, to guide air-flow swimmingly, can simplify again the structure of air-supply wind-guiding mouth 60.That is, two end air-supply air-guiding aisles 621,623 can be symmetrical arranged relative to middle part air-guiding aisle 622 of blowing, and the ratio between the cross-sectional area of the air inlet of the cross-sectional area of the air inlet of two end air-supply air-guiding aisles 621,623 and middle part air-supply air-guiding aisle 622 can be 1:1:2,1:1:3 or 1:1:4.Preferably, in embodiments of the present invention, two end air-supply air-guiding aisles 621, ratio between the cross-sectional area of the air inlet of the cross-sectional area of the air inlet of 623 and middle part air-supply air-guiding aisle 622 is 1:1:3, thus, the throughput distribution making outflow vaporizer 20 is distributed closest to the throughput flowing through vaporizer 20.
In other embodiment of the present invention, the quantity of return air wind deflector 51 and air-supply wind deflector 61 can also be three or more than three, return air air-guiding aisle and air-supply air-guiding aisle are carried out fine division, thus more precisely controlling distribution or the distribution of throughput.
In embodiments of the present invention, the quantity of the air-supply wind deflector 61 in air-supply wind-guiding mouth 60 can keep consistent with the quantity of the return air wind deflector 51 in return air wind-guiding mouth 50.Relation between the cross-sectional area of multiple air-supply air-guiding aisles that air-supply wind-guiding mouth 60 is divided into by air-supply wind deflector 61 can be identical with the relation between the cross-sectional area of multiple return air air-guiding aisles that return air wind-guiding mouth 50 is divided into by return air wind deflector 51.
In some embodiments of the invention, it is further defined with in casing 10 for storing article and being positioned at the refrigerating chamber 13 below temperature-changing chamber 12.Refrigerating device 1 may also include the 3rd door body 83 for opening and/or close refrigerating chamber 13.Refrigerating chamber 13 is used for providing the user the function such as quick-freezing, freezing, and the temperature in refrigerating chamber 13 is usually arranged as-24 DEG C～-4 DEG C.Cooling room 14 is positioned at after refrigerating chamber 13, and is separated by with refrigerating chamber 13 by the back shroud 131 of refrigerating chamber 13.The connection refrigerating chamber formed below 13 of back shroud 131 and the second return air inlet 142 of cooling room 14, to allow the return air in refrigerating chamber 13 to be back to cooling room 14 through the second return air inlet 142.It is to say, the distance that the inner bag diapire that can apart be disposed below of the lower end of back shroud 131 is certain, thus forming the second return air inlet 142 between the lower end of back shroud 131 and inner bag diapire.It will be understood by those skilled in the art that owing to the humidity in refrigerating chamber 13 is less, say, that moisture contained in the return air of refrigerating chamber 13 is less, therefore, quite few from frosting degree on vaporizer 20 of the return air of refrigerating chamber 13.As can be seen here, hardly the frosting on vaporizer 20 is distributed generation impact from the return air of refrigerating chamber 13.
The refrigerating device 1 that it will be understood by those skilled in the art that in the embodiment of the present invention includes but not limited to refrigerator, refrigerator-freezer, bar desk, cold closet etc., also includes other devices that can provide cold preservation, alternating temperature, the function such as fresh-keeping.
Those skilled in the art will also be understood that, in the embodiment of the present invention alleged " on ", D score, " interior ", " outward ", "front", "rear", " horizontal stroke ", " erecting " etc. be used for representing that the term of orientation or position relationship is with the real use state of refrigerating device 1 for benchmark, these terms are for only for ease of description and understand technical scheme, rather than instruction or hint indication device or parts must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
So far, those skilled in the art will recognize that, although the detailed multiple exemplary embodiments illustrate and describing the present invention herein, but, without departing from the spirit and scope of the present invention, still can directly determine according to present disclosure or derive other variations or modifications many meeting the principle of the invention.Therefore, the scope of the present invention is it is understood that cover all these other variations or modifications with regarding as.
Claims (10)
1. a refrigerating device, including:
Casing, defines the cold room for storing article and temperature-changing chamber, cools down cooling down room and being respectively used to for the cold preservation air-return duct and the alternating temperature air-return duct that flow to described cooling room from the return air of described cold room and the return air of described temperature-changing chamber of air-flow for providing for described cold room and described temperature-changing chamber in it；
Vaporizer, is arranged at described cooling indoor, and is configured to carry out heat exchange with the air-flow flowing through it；
Heater, is arranged at described cooling indoor, and is configured to described vaporizer is controllably heated defrosting；
Return air hybrid channel, is connected with the end of the end of described cold preservation air-return duct and described alternating temperature air-return duct, so that the return air from described cold preservation air-return duct and the return air from described alternating temperature air-return duct flow to described cooling room after mixing in described return air hybrid channel again；And
Return air wind-guiding mouth, it is arranged at the end of described return air hybrid channel, and be configured to according to the wind path set, the mixed return air in described return air hybrid channel is guided the lower section to described vaporizer, so that the heat distribution produced when described vaporizer is heated defrosting by the distribution flowing through the return air amount of described vaporizer with described heater is consistent.
2. refrigerating device according to claim 1, wherein,
Described return air wind-guiding mouth be internally provided with at least two return air wind deflector, be divided at least three return air air-guiding aisle with the inner space by described return air wind-guiding mouth；And
Return air wind deflector described at least two the location arrangements within described return air wind-guiding mouth become to pass through the transverse ends by described return air wind-guiding mouth wherein between return air amount in the described return air air-guiding aisle that is arranged in order be incremented by successively.
3. refrigerating device according to claim 2, wherein,
The quantity of described return air wind deflector is two；And
The ratio that two described return air wind deflectors are arranged so that between the cross-sectional area of the air inlet of the cross-sectional area of the air inlet of two end return air air-guiding aisles at two ends and a middle part return air air-guiding aisle between two described end return air air-guiding aisles is the arbitrary ratio between 1:1:2～1:1:4.
4. refrigerating device according to claim 1, wherein,
Described return air wind-guiding mouth is configured to along its interior air current flow direction flaring；And
The air outlet of described return air wind-guiding mouth be opened in described cooling room rear wall for being connected for the first return air inlet being back to described cooling chamber interior from the return air of described cold room and described temperature-changing chamber, and the width that the air outlet of described first return air inlet width in the horizontal and described return air wind-guiding mouth is in the horizontal is all consistent with described vaporizer width in the horizontal.
5. refrigerating device according to claim 4, wherein,
The thickness on the depth direction of described casing air current flow direction along described return air hybrid channel in the described return air hybrid channel is gradually reduced, so that the thickness that described return air wind-guiding mouth is on described depth direction is less than the thickness of described cold preservation air-return duct and described alternating temperature air-return duct.
6. refrigerating device according to claim 5, wherein,
The described return air hybrid channel cross-sectional area in arbitrary position more than in described cold preservation air-return duct and described alternating temperature air-return duct any one cross-sectional area and less than or equal to the cross-sectional area sum of described cold preservation air-return duct and described alternating temperature air-return duct.
7. refrigerating device according to claim 1, also includes:
Blower fan, is arranged at described cooling indoor and is positioned at the downstream of described vaporizer on the air current flow direction that described cooling is indoor, to promote air-flow to circulate between described cold room and described cooling room and between described temperature-changing chamber and described cooling room；And
Air-supply wind-guiding mouth, is arranged between described vaporizer and described blower fan, and is configured to guide to described blower fan the air-flow after described evaporator heat exchange according to the wind path set.
8. refrigerating device according to claim 7, wherein,
Described air-supply wind-guiding mouth is configured to along its interior air current flow direction convergent；And
The air inlet of the described vaporizer of vicinity of described air-supply wind-guiding mouth width in the horizontal is consistent with described vaporizer width in the horizontal.
9. refrigerating device according to claim 7, wherein,
Described air-supply wind-guiding mouth be internally provided with at least two air-supply wind deflector, with the inner space by described air-supply wind-guiding mouth be divided at least three air-supply air-guiding aisle；And
Blow described at least two wind deflector the location arrangements one-tenth described air-supply wind-guiding mouth within pass through the transverse ends by described air-supply wind-guiding mouth wherein between air output in the described air-supply air-guiding aisle that is arranged in order be incremented by successively.
10. refrigerating device according to claim 1, wherein,
It is further defined with in described casing for storing article and being positioned at the refrigerating chamber below described temperature-changing chamber；And
Described cooling room is positioned at after described refrigerating chamber, and be separated by by the back shroud of described refrigerating chamber and described refrigerating chamber, the described refrigerating chamber of connection formed below of described air duct cover board and the second return air inlet of described cooling room, to allow the return air in described refrigerating chamber to be back to described cooling room through described second return air inlet.
Priority Applications (2)
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| CN201610201185.1A CN105783374B (en) | 2016-03-31 | 2016-03-31 | Refrigerating device |
| PCT/CN2016/086248 WO2017166442A1 (en) | 2016-03-31 | 2016-06-17 | Refrigerating and freezing device |
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| CN201610201185.1A CN105783374B (en) | 2016-03-31 | 2016-03-31 | Refrigerating device |
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| CN105783374B CN105783374B (en) | 2018-12-14 |
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| CN106610164A (en) * | 2016-11-23 | 2017-05-03 | 青岛海尔股份有限公司 | Air-cooled refrigerator |
| CN106885413A (en) * | 2017-03-23 | 2017-06-23 | 海信（山东）冰箱有限公司 | A kind of air guide member, air channel structure and wind cooling refrigerator for wind cooling refrigerator |
| 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 |
| CN108088147A (en) * | 2017-12-07 | 2018-05-29 | 合肥华凌股份有限公司 | Refrigerator |
| CN113858609A (en) * | 2020-06-29 | 2021-12-31 | 广州黑格智造信息科技有限公司 | Heat preservation 3D printer |
| CN113899160A (en) * | 2021-11-03 | 2022-01-07 | 青岛海尔电冰箱有限公司 | Control method of refrigeration equipment |
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| CN106885413A (en) * | 2017-03-23 | 2017-06-23 | 海信（山东）冰箱有限公司 | A kind of air guide member, air channel structure and wind cooling refrigerator for wind cooling refrigerator |
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| 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 |
| CN108088147A (en) * | 2017-12-07 | 2018-05-29 | 合肥华凌股份有限公司 | Refrigerator |
| CN113858609A (en) * | 2020-06-29 | 2021-12-31 | 广州黑格智造信息科技有限公司 | Heat preservation 3D printer |
| CN113899160A (en) * | 2021-11-03 | 2022-01-07 | 青岛海尔电冰箱有限公司 | Control method of refrigeration equipment |
Also Published As
| Publication number | Publication date |
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| WO2017166442A1 (en) | 2017-10-05 |
| CN105783374B (en) | 2018-12-14 |
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