CN105698465A - Refrigerating and freezing device - Google Patents
Refrigerating and freezing device Download PDFInfo
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- CN105698465A CN105698465A CN201610206127.8A CN201610206127A CN105698465A CN 105698465 A CN105698465 A CN 105698465A CN 201610206127 A CN201610206127 A CN 201610206127A CN 105698465 A CN105698465 A CN 105698465A
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- Prior art keywords
- return air
- air
- vaporizer
- wind
- return
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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 invention relates to a refrigerating and freezing device. The refrigerating and freezing device comprises a box and an evaporator, wherein a refrigerating chamber, a freezing chamber, a cooling chamber and a refrigerating return air channel are defined in the box, and the cooling chamber is used for providing cooling airflow for the refrigerating chamber and the freezing chamber; the evaporator is arranged in the cooling chamber and is configured to conduct heat exchange with airflow flowing through the evaporator; the cooling chamber is located behind the freezing chamber and spaced from the freezing chamber through a rear cover plate of the freezing chamber; the two side ends of the bottom of the rear cover plate are provided with freezing return air ports correspondingly, and the freezing return air ports communicate with the cooling chamber and the freezing chamber so as to allow return air from the freezing chamber to return to the cooling chamber; the bottom of the rear wall of the cooling chamber is provided with a refrigerating return air port communicating with the refrigerating return air channel; and the projections of the two freezing return air ports in a vertical plane extending transversely are located on the two sides of the projection of the refrigerating return air port in the vertical plane in the transverse direction, so that return air from the refrigerating chamber is made to flow to a central area of the evaporator, and the return air from the freezing chamber is made to flow to two end areas of the evaporator correspondingly.
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 the refrigerating device that a kind of defrosting efficiency is high。
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 in it for storing article and the cold room arranged up and down and refrigerating chamber, for providing the cooling room of cooling air-flow for described cold room and described refrigerating chamber and for being back to the cold preservation air-return duct of described cooling room for the return air from described cold room；And
Vaporizer, is arranged at described cooling indoor, and is configured to carry out heat exchange with the air-flow flowing through it, to cool down described air-flow；Wherein
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 two bottom sides end of described back shroud offers the freezing return air inlet connecting described cooling room and described refrigerating chamber respectively, to allow the return air from described refrigerating chamber to be back to described cooling room；
The cold preservation return air inlet connected with described cold preservation air-return duct is offered bottom the rear wall of described cooling room；And
Two described freezing return air inlet projections in the perpendicular extended transversely lay respectively at the both lateral sides of described cold preservation return air inlet projection in this perpendicular, so that the return air from described cold room flows to the central region of described vaporizer, makes the return air from described refrigerating chamber flow to two end regions of described vaporizer respectively。
Alternatively, described refrigerating device also includes:
Heater, is arranged at described cooling indoor, and is configured to described vaporizer is controllably heated defrosting；And
Return air wind-guiding mouth, it is arranged between the air outlet of described cold preservation air-return duct and described cold preservation return air inlet, and be configured to according to the wind path set, the return air in described cold preservation air-return duct is guided the central region to described vaporizer, so that the heat produced by the central region of corresponding described vaporizer when described vaporizer is defrosted by air volume adjustment with described heater that returns flowing through described vaporizer central region is distributed 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 of the transverse ends at described return air wind-guiding mouth 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 is connected with described cold preservation return air inlet, and the width that described cold preservation return air inlet is in the horizontal is consistent with the air outlet of described return air wind-guiding mouth width in the horizontal。
Alternatively, described cold preservation return air inlet width in the horizontal and two described freezing return air inlet width sums in the horizontal are equal to described vaporizer width in the horizontal。
Alternatively, the upper end in the vertical direction of each described freezing return air inlet is respectively positioned between lower 1/4th of described vaporizer and lower 1/3rd of described vaporizer。
Alternatively, two described freezing return air inlets are arranged about the vertical decile plane symmetry extended along its depth direction of described casing。
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 refrigerating 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。
Humidity owing to the humidity in cold room is of a relatively high, in refrigerating chamber is relatively low, bigger than from the moisture contained by the return air of refrigerating chamber therefore from the moisture contained by the return air of cold room, it is easier to form frosting on an evaporator。Further, when being heated vaporizer defrosting, heat mostly concentrates on the central region of vaporizer。Thus, the position that cold preservation return air inlet and two freezing return air inlets are transversely gone up is arranged so that the projection in the perpendicular extended transversely of two freezing return air inlets lays respectively at the both lateral sides of cold preservation return air inlet projection in this perpendicular by the refrigerating device of the present invention, thus the return air from refrigerating chamber and the return air from cold room can be enable from contrary both sides to blow to vaporizer, (freezing return air blows to vaporizer from the lower front of vaporizer, cold preservation return air blows to vaporizer from the back lower of vaporizer), return air from cold room can flow to the central region of vaporizer, return air from refrigerating chamber can flow to two end regions of vaporizer respectively, so that the solidifying frost on vaporizer is concentrated mainly on its central region, so as heat when sufficiently and reasonably utilizing vaporizer to defrost, improve the defrosting efficiency of vaporizer。
Further, the return air that humidity from cold room is bigger is guided by the refrigerating device of the present invention by arranging return air wind-guiding mouth, pass through when vaporizer is heated defrosting by distribution and the heater of the return air amount of the central region of vaporizer to should the heat distribution that produces of central region consistent so that the distribution of the solidifying frost produced in vaporizer central region is distributed consistent with the heat that heater produces in this region。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 cold preservation return air inlet width in the horizontal and two freezing return air inlets width sum in the horizontal is equal to vaporizer width in the horizontal。Therefore, the return air from cold room and refrigerating 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 at least part of 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 that refrigerating device conceals door body and the indoor schematic elevational view containing parts of cooling according to an embodiment of the invention；
Fig. 3 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. 4 is refrigerating device according to an embodiment of the invention；
Fig. 5 is the schematic frosting scattergram of the vaporizer of refrigerating device according to an embodiment of the invention；
Fig. 6 is the schematic return air amount scattergram of the vaporizer flowing through refrigerating device according to an embodiment of the invention；
Fig. 7 is the schematic diagram of the cold preservation return air channel of refrigerating device according to an embodiment of the invention。
Detailed description of the invention
The embodiment of the present invention provides a kind of refrigerating device 1, Fig. 1 is the schematic diagram of refrigerating device according to an embodiment of the invention, Fig. 2 is that refrigerating device conceals door body and cooling indoor contain the schematic elevational view of parts (specifically according to an embodiment of the invention, Fig. 2 has concealed vaporizer 20 and heater 30, so that observing two freezing return air inlets 121, position relationship between 122 and cold preservation return air inlet 141), Fig. 3 is another schematic diagram of refrigerating device according to an embodiment of the invention, straight arrows shown in Fig. 3 is the air current flow direction in respective channel。Referring to Fig. 1 to Fig. 3, refrigerating device 1 includes: casing 10, defines for storing article and the cold room 11 arranged up and down and refrigerating chamber 12, for providing the cooling room 14 of cooling air-flow for cold room 11 and refrigerating chamber 12 and for being back to the cold preservation air-return duct 15 of cooling room 14 for the return air from cold room 11 in it；And vaporizer 20, it 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。Specifically, 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。Refrigerating chamber 12 can be located at the lower section of cold room 11, is used for providing the user the function such as quick-freezing, freezing, and the temperature in refrigerating chamber 12 is usually arranged as-24 DEG C～-4 DEG C。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 refrigerating chamber 12。
Especially, cooling room 14 is positioned at after refrigerating chamber 12, and be separated by with refrigerating chamber 12 by the back shroud 123 of refrigerating chamber 12, the two bottom sides end of back shroud 123 offers the freezing return air inlet 121 of connection cooling room 14 and refrigerating chamber 12 and freezing return air inlet 122 respectively, to allow the return air from refrigerating chamber 12 to be back to cooling room 14。Offer, bottom the rear wall of cooling room 14, the cold preservation return air inlet 141 connected with cold preservation air-return duct 15。It is to say, on the depth direction of casing 10, freezing return air inlet 121,122 is positioned at the front side of vaporizer 20, and cold preservation return air inlet 141 is positioned at the rear side of vaporizer 20。The mid portion between two side bottom back shroud 123 is connected to the inner bag diapire of refrigerating chamber 12, to avoid the return air of refrigerating chamber 12 to blow to the central region of vaporizer 20。
Further, two freezing return air inlets 121,122 projections in the perpendicular extended transversely lay respectively at the both lateral sides of the cold preservation return air inlet 141 projection in this perpendicular, so that the return air from cold room 11 flows to the central region of vaporizer 20, makes the return air from refrigerating chamber 12 flow to two end regions of vaporizer 20 respectively。It is to say, in the horizontal, two freezing return air inlets 121,122 lay respectively at the both sides of cold preservation return air inlet 141, and two freezing return air inlets 121,122 and the cold preservation return air inlet 141 projection in the perpendicular extended transversely not overlapping。The end regions of vaporizer 20 mean its transverse ends edge contiguous, there is one fixed width, there is regular or erose region, the central region of vaporizer 20 means the region with one fixed width between two end regions of vaporizer 20。
It will be understood by those skilled in the art that, humidity owing to the humidity in cold room 11 is of a relatively high, in refrigerating chamber 12 is relatively low, bigger than the moisture contained by the return air from refrigerating chamber 12 therefore from the moisture contained by the return air of cold room 11, it is easier on vaporizer 20, to form frosting。Further, when being heated vaporizer 20 defrosting, heat mostly concentrates on the central region of vaporizer 20。Thus, the refrigerating device 1 of the present invention is by freezing to cold preservation return air inlet 141 and two return air inlet 121, 122 positions transversely gone up are arranged so that two freezing return air inlets 121, 122 projections in the perpendicular extended transversely lay respectively at the both lateral sides of the cold preservation return air inlet 141 projection in this perpendicular, thus the return air from refrigerating chamber 12 and the return air from cold room 11 can be enable from contrary both sides to blow to vaporizer 20, (freezing return air blows to vaporizer 20 from the lower front of vaporizer 20, cold preservation return air blows to vaporizer 20 from the back lower of vaporizer 20), return air from cold room 11 can flow to the central region of vaporizer 20, return air from refrigerating chamber 12 can flow to two end regions of vaporizer 20 respectively, so that the solidifying frost on vaporizer 20 is concentrated mainly on its central region, so as heat when sufficiently and reasonably utilizing vaporizer 20 to defrost, improve the defrosting efficiency of vaporizer 20。
In some embodiments of the invention, the upper end in the vertical direction of each freezing return air inlet is respectively positioned between lower 1/4th of vaporizer 20 and lower 1/3rd of vaporizer 20。It is to say, the upper end of freezing return air inlet 121 and freezing return air inlet 122 is above lower 1/4th places of vaporizer 20 and lower than lower 1/3rd places of vaporizer 20。Lower 1/4th places of vaporizer 20 mean the position at 1/4th horizontal bisector places of its lower end of vicinity of vaporizer 20, and in like manner, lower 1/3rd places of vaporizer 20 mean the position at 1/3rd horizontal bisector places of its lower end of vicinity of vaporizer 20。Thus, the too low flow path causing freezing return air of height that can either avoid freezing return air inlet extends, cannot effectively flow to the problem of vaporizer 20, again it can be avoided that the excessive height of freezing return air inlet causes air-supply air-flow and the problem such as return air stream is disorderly, return air heat exchange is not thorough。
In some embodiments of the invention, two freezing return air inlets 121,122 are arranged about the vertical decile plane symmetry extended along its depth direction of casing 10。It is to say, the position of two freezing return air inlets 121,122 is mutually symmetrical with, and the size of two freezing return air inlets 121,122 is identical, so that the return air amount flowing to two lateral ends regions of vaporizer 20 is roughly the same。
In order to meet integral load and the demand of refrigerating capacity needed for room between each of cold room 11 and refrigerating chamber 12, in some embodiments of the invention, the ratio of the cross-sectional area sum of two freezing return air inlets 121,122 and the cross-sectional area of cold preservation return air inlet 141 is substantially equal to the ratio of the refrigerating capacity of refrigerating chamber 12 and the refrigerating capacity of cold room 11。It is to say, the ratio between the cross-sectional area of whole freezing return air inlet and the ratio of the cross-sectional area of whole cold preservation return air inlet and refrigerating chamber and each required refrigerating capacity of cold room is identical。Thus, cold room 11 and refrigerating chamber 12 are all capable of normal refrigeration。
In some embodiments of the invention, refrigerating device 1 also includes: heater 30, is arranged in cooling room 14, and is configured to vaporizer 20 is controllably heated defrosting；And return air wind-guiding mouth 50, it is arranged between the air outlet of cold preservation air-return duct 15 and cold preservation return air inlet 141, and be configured to according to the wind path set, the return air in cold preservation air-return duct 15 is guided the central region to vaporizer 20, so that the heat produced by the central region of corresponding vaporizer 20 when vaporizer 20 is defrosted by air volume adjustment with heater 30 that returns flowing through vaporizer 20 central region is distributed consistent。
That is, the return air that humidity from cold room 11 is bigger is guided by the refrigerating device 1 of the present invention by arranging return air wind-guiding mouth 50, pass through when vaporizer 20 is heated defrosting by distribution and the heater 30 of the return air amount of the central region of vaporizer 20 to should the heat distribution that produces of central region consistent so that the distribution of the solidifying frost produced in vaporizer 20 central region is distributed consistent with the heat that heater 30 produces in this region。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。
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.。
Vaporizer is heated schematic thermal profile when defrosting by the heater that Fig. 4 is refrigerating device according to an embodiment of the invention, Fig. 5 is the schematic frosting scattergram of the vaporizer of refrigerating device according to an embodiment of the invention, and Fig. 6 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. 4, 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. 4 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. 5 with hatching), for this, the distribution of the return air amount flowing through vaporizer 20 should successively decrease (referring to Fig. 6) from the centre of vaporizer 20 to its both sides too successively。
The designer of the present invention considers that the return air humidity from cold room 11 is bigger, it is therefore desirable to especially the return air from cold preservation air-return duct 15 is guided。Fig. 7 is the schematic diagram of the cold preservation return air channel of refrigerating device according to an embodiment of the invention, and the straight arrows shown in Fig. 7 is the air current flow direction in corresponding air channel。The cold preservation return air channel of refrigerating device 1 includes cold preservation air-return duct 15 and return air wind-guiding mouth 50。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 is two。Two return air wind deflectors 51 are arranged to be positioned at two end return air air-guiding aisles 521 of the transverse ends of return air wind-guiding mouth 50, 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 central region produces with heater 30 corresponding vaporizer 20 central region 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 central region is distributed closest to heat produced by corresponding vaporizer 20 central region of 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 with cold preservation return air inlet 141, and the width that cold preservation return air inlet 141 is in the horizontal is consistent with the air outlet 53 of return air wind-guiding mouth 50 width in the horizontal, so that return air wind-guiding mouth 50 and cold preservation return air inlet 141 seamless link。
Further, cold preservation return air inlet 141 width in the horizontal and two freezing return air inlets 121,122 width sum in the horizontal is equal to vaporizer 20 width in the horizontal。Thus, the return air from cold room 11 and refrigerating 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 return air inlet 141 or to realize the seamless link between air outlet 53 and 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。
Further, the return air wind-guiding mouth 50 thickness on the depth direction of casing 10 is less than the cold preservation air-return duct 15 thickness on this depth direction, excessive and cause that the air-flow velocity entered in return air wind-guiding mouth 50 strongly reduces with the cross-sectional area of avoiding the air inlet of return air wind-guiding mouth 50。
In some embodiments of the invention, referring to Fig. 1 and Fig. 3, 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 refrigerating 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 at least part of 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, refrigerating 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, middle part the closer to vaporizer 20, throughput is relatively more big, 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, the throughput distribution just having flowed out vaporizer 20 can either be made with the throughput distribution flowing through vaporizer 20 and keep consistent as far as possible, to reduce gas-flow resistance, to guide air-flow swimmingly, the structure of air-supply wind-guiding mouth 60 can be simplified again。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 other embodiment of the present invention, each freezing return air inlet place also can correspondingly arrange a return air wind-guiding mouth, the return air from refrigerating chamber 12 is accurately guided, so that flowing through heat distribution produced by the overall distribution of the throughput of vaporizer 20 and the overall region at heater 30 corresponding vaporizer 20 place to generally remain consistent。
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 in it for storing article and the cold room arranged up and down and refrigerating chamber, for providing the cooling room of cooling air-flow for described cold room and described refrigerating chamber and for being back to the cold preservation air-return duct of described cooling room for the return air from described cold room；And
Vaporizer, is arranged at described cooling indoor, and is configured to carry out heat exchange with the air-flow flowing through it, to cool down described air-flow；Wherein
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 two bottom sides end of described back shroud offers the freezing return air inlet connecting described cooling room and described refrigerating chamber respectively, to allow the return air from described refrigerating chamber to be back to described cooling room；
The cold preservation return air inlet connected with described cold preservation air-return duct is offered bottom the rear wall of described cooling room；And
Two described freezing return air inlet projections in the perpendicular extended transversely lay respectively at the both lateral sides of described cold preservation return air inlet projection in this perpendicular, so that the return air from described cold room flows to the central region of described vaporizer, makes the return air from described refrigerating chamber flow to two end regions of described vaporizer respectively。
2. refrigerating device according to claim 1, also includes:
Heater, is arranged at described cooling indoor, and is configured to described vaporizer is controllably heated defrosting；And
Return air wind-guiding mouth, it is arranged between the air outlet of described cold preservation air-return duct and described cold preservation return air inlet, and be configured to according to the wind path set, the return air in described cold preservation air-return duct is guided the central region to described vaporizer, so that the heat produced by the central region of corresponding described vaporizer when described vaporizer is defrosted by air volume adjustment with described heater that returns flowing through described vaporizer central region is distributed consistent。
3. refrigerating device according to claim 2, 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。
4. refrigerating device according to claim 3, 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 of the transverse ends at described return air wind-guiding mouth 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。
5. refrigerating device according to claim 2, 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 is connected with described cold preservation return air inlet, and the width that described cold preservation return air inlet is in the horizontal is consistent with the air outlet of described return air wind-guiding mouth width in the horizontal。
6. refrigerating device according to claim 5, wherein,
Described cold preservation return air inlet width in the horizontal and two described freezing return air inlet width sums in the horizontal are equal to described vaporizer width in the horizontal。
7. refrigerating device according to claim 1, wherein,
The upper end in the vertical direction of each described freezing return air inlet is respectively positioned between lower 1/4th of described vaporizer and lower 1/3rd of described vaporizer。
8. refrigerating device according to claim 1, wherein,
Two described freezing return air inlets are arranged about the vertical decile plane symmetry extended along its depth direction of described casing。
9. 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 refrigerating 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。
10. refrigerating device according to claim 9, 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。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610206127.8A CN105698465B (en) | 2016-03-31 | 2016-03-31 | Refrigerating device |
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| CN105698465A true CN105698465A (en) | 2016-06-22 |
| CN105698465B CN105698465B (en) | 2018-05-29 |
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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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| 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 |
| WO2017166575A1 (en) * | 2016-03-31 | 2017-10-05 | 合肥海尔电冰箱有限公司 | Refrigerating and freezing device |
| WO2017166443A1 (en) * | 2016-03-31 | 2017-10-05 | 青岛海尔特种电冰箱有限公司 | Refrigerating and freezing device |
| CN111771092A (en) * | 2018-02-23 | 2020-10-13 | Lg电子株式会社 | Refrigerator with a door |
| CN113048690A (en) * | 2019-12-26 | 2021-06-29 | 青岛海尔电冰箱有限公司 | Side by side combination refrigerator |
| CN114174743A (en) * | 2019-06-26 | 2022-03-11 | 利尼芝物流有限责任公司 | Blast chamber cooling with induced air flow |
| US11940198B2 (en) | 2021-12-01 | 2024-03-26 | Lineage Logistics, LLC | Automated blast cell loading and unloading |
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| 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 |
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| WO2017166575A1 (en) * | 2016-03-31 | 2017-10-05 | 合肥海尔电冰箱有限公司 | Refrigerating and freezing device |
| WO2017166443A1 (en) * | 2016-03-31 | 2017-10-05 | 青岛海尔特种电冰箱有限公司 | Refrigerating and freezing device |
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| CN111771092B (en) * | 2018-02-23 | 2022-04-15 | Lg电子株式会社 | Refrigerator with a door |
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| US11566835B2 (en) | 2019-06-26 | 2023-01-31 | Lineage Logistics, LLC | Blast cell cooling with guided airflow |
| US11859892B2 (en) | 2019-06-26 | 2024-01-02 | Lineage Logistics, LLC | Blast cell cooling with guided airflow |
| CN113048690A (en) * | 2019-12-26 | 2021-06-29 | 青岛海尔电冰箱有限公司 | Side by side combination refrigerator |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017166575A1 (en) | 2017-10-05 |
| CN105698465B (en) | 2018-05-29 |
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