CN1880894A - Air blowing method employing top cover to blow air and air-cooling type refrigerator employing the method - Google Patents
Air blowing method employing top cover to blow air and air-cooling type refrigerator employing the method Download PDFInfo
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- CN1880894A CN1880894A CN 200510077175 CN200510077175A CN1880894A CN 1880894 A CN1880894 A CN 1880894A CN 200510077175 CN200510077175 CN 200510077175 CN 200510077175 A CN200510077175 A CN 200510077175A CN 1880894 A CN1880894 A CN 1880894A
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Abstract
The invention relates to a wind cold refrigerator and a method for feeding wind with top cover, wherein said method comprises: using force wind cycle refrigerating system to flow cold wind in refrigerator to cool food; the invention is characterized in that: the wind open is arranged on the top cover of refrigerator; the reflux open is on the bottom wall to feed the cold wind from down to up to the cold room. The inventive refrigerator is characterized in that: the wind open is on the top cover; the reflux open is on the bottom wall. The invention can force the air cooled by vaporized into the cold room, to be blown into cold room from up to down, to obtain high cooling speed, better cooling effect, and high efficiency.
Description
Technical field
The present invention relates to a kind of air supply method and a kind of air-cooling type refrigerator of air-cooling type refrigerator, relate in particular to a kind of horizontal air-cooling type refrigerator.
Background technology
Now, adopt the horizontal chest freezer of steam compression type refrigeration mostly to be direct-cooling type, its evaporimeter generally is wrapped on the inner bag of refrigerator-freezer, cold air is with free convection mode cooling food, its refrigeration system mainly comprises compressor, condenser, throttling arrangement, device for drying and filtering, parts such as evaporimeter, its course of work is: the refrigerant liquid in the evaporimeter is in low pressure, heat under the low-temperature condition in the absorption refrigerator-freezer and seething with excitement, the low-pressure low-temperature refrigerant vapour that produces is sucked by compressor, become high pressure-temperature gas after compression and enter condenser, because the cooling effect of outdoor air, cold-producing medium is emitted heat and is condensed into liquid to outdoor air in condenser, highly pressurised liquid is through throttling arrangement throttling step-down, get back to evaporimeter again after becoming damp steam, constantly evaporate thus, compression, condensation, the process that moves in circles of throttling, meanwhile, cold-producing medium is periodically taking place to become steam from liquid, become the state variation of liquid from steam, constantly the transfer of heat in the refrigerator-freezer is arrived the refrigerator-freezer outside, thereby reach the purpose of refrigeration.
Because the refrigeration of evaporimeter, air themperature near refrigerator-freezer inner bag place is very low, saturated humidity is little, the water vapour content that the air of unit volume can comprise is very low, under the effect of low temperature, airborne steam can condense into liquid droplet, and when inner wall temperature is lower than 0 when spending, these droplets can further condense into frost.These frosts have not only reduced the refrigerating efficiency of evaporimeter attached on the inwall, have also increased power consumption, have reduced Energy Efficiency Ratio, have also increased the work of artificial defrosting, have caused the refrigerating loss when opening the cabinet defrosting.
EP0769262A2 discloses a kind of air-cooling type refrigerator, this refrigerator-freezer comprises sidewall, diapire, top cover, cold house and forced ventilation circulating cooling system, the sending of its forced ventilation circulating cooling system, the upper end that return air inlet is oppositely disposed in two opposite side walls, be respectively equipped with one section air channel in two sidewalls and the diapire, three sections air channels form a passage be connected give, between the return air inlet, evaporimeter and blower fan are arranged in the air channel of refrigerator-freezer diapire.During work, blower fan is sent the cold wind that evaporimeter makes in the cold house to from the air outlet on the sidewall, the high slightly cold wind of temperature behind the heat of assimilating food draws back evaporimeter from the return air inlet with the air outlet opposing sidewalls and cools off, sends the cold house after the cooling again to, and cooling procedure thus constantly circulates.But this kind mode, because give, the arrangement of return air inlet is to be oppositely disposed in the top, two side, the food of refrigerator-freezer bottom is difficult to be cooled off fully, for cold airflow in indoor sufficient heat release, this invention is done a very big interior concave space with cold house's side of top cover, to guarantee effective utilization of cold.But following two problems are arranged still still: 1, because air-flow is to be sent into by upside, and upside returns, the cooling effect of the food of refrigerator-freezer bottom is still relatively poor; 2, because top cover takes up room greatly, and compare with the capacity refrigerator-freezer, shared volume is big.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of air outlet and be located on the refrigerator-freezer top cover, return air inlet is located at the air supply method from top to bottom of refrigerator-freezer bottom and adopts the air-cooling type refrigerator of this kind air supply method.
The air supply method of air-cooling type refrigerator of the present invention is: utilize to force the wind circulating cooling system to make cold wind carry out forced circulation in refrigerator-freezer and flow food is cooled off, it is characterized in that: air outlet is arranged on the top cover of refrigerator-freezer, return air inlet is arranged on the diapire of refrigerator-freezer, and cold wind is from top to bottom sent into the cold house from top cover.
As the further improvement of the air supply method of air-cooling type refrigerator of the present invention, the mode that cold wind is sent into top cover be by the air compartment that is positioned at sidewall air outlet and the supply air duct that is positioned at top cover give a dinner for a visitor from afar mouthful dock up and down or the realization of left and right sides docking mode.
Be the better effect that realizes from top cover to blow, in this method, number is set should be no less than 8 of air outlet, and be evenly distributed on the top cover, guarantee that simultaneously air supply velocity is not less than 1000L/min.
The air-cooling type refrigerator of the above-mentioned air supply method of employing of the present invention, comprise: cabinet, refrigeration system, defrost system, pressure wind circulating cooling system, wherein: cabinet comprises sidewall, top cover, diapire and the cold house that is surrounded by the three, and wherein sidewall is divided into front side wall, rear wall, left side wall, right side wall again; Force the wind circulating cooling system to comprise the air channel structure between air outlet, return air inlet, connection air outlet and the return air inlet and be located at blower fan in this air channel structure, the supply air duct at described air outlet and place thereof is located on the refrigerator-freezer top cover; Return air inlet and the air-return duct that communicates with it thereof are located on the diapire of refrigerator-freezer.
As further optimization of the present invention, described air channel structure forms an air compartment on a left side or the top in the right side wall of refrigerator-freezer, described evaporimeter and blower fan are located in this air compartment, air compartment top is provided with the air outlet into top cover to blow, the air compartment bottom communicates with air-return duct on being located at diapire by air channel structure, for the cold wind that air compartment is provided is delivered in the top cover to blow road, the top cover to blow road is in the outside projection in its porch, form the mouth of giving a dinner for a visitor from afar, its position, shape, size all matches with the air compartment air outlet, so that both just in time docked when top cover closed on the cabinet, and described top cover is the formula of lifting, and is hinged between the cabinet.
Because the air supply method of the air-cooling type refrigerator among the present invention and to adopt the refrigerator-freezer of this kind air supply method be that force air after utilizing blower fan with evaporator cools is blown in the cold house, and be from top to bottom to be blown into the cold house from top cover, so not only make food cooling velocity in the cold house fast and the indoor temperature field distribution is more even, bottom food cooling effect is better, and the inner bag place is difficult for frosting, the refrigerating loss that the defrost of having avoided uncapping causes, the Energy Efficiency Ratio height of whole refrigeration unit, the refrigerator-freezer with capacity takes up room little relatively.
In order to realize the object of the invention better, air-cooling type refrigerator of the present invention also can further be optimized:
1. dock or dock up and down about the air outlet of air compartment and the top cover docking mode of giving a dinner for a visitor from afar mouthful is optimized for; When docking up and down, two air ports are the horizontal direction setting, and two air ports are the vertical direction setting during butt joint about being.
Under equal conditions, for left and right sides docking mode, because the air supply direction of giving air delivery duct on wind direction and the top cover of air compartment is identical, so local resistance loss is relatively littler, but the air-supply be subjected to air compartment air outlet and top cover give a dinner for a visitor from afar the mouth mated condition influence greatly, and must leave certain spacing between the two and can freely raise to guarantee top cover, this has just inevitably caused certain loss of refrigeration capacity.And for docking mode up and down, cold wind is vertically to enter the mouth of giving a dinner for a visitor from afar from bottom to top, the air-supply be subjected to air compartment air outlet and top cover give a dinner for a visitor from afar the mouth mated condition influence smaller, two air ports even can not have the gap relative up and down, but comparatively speaking, owing to need a break-in when air-supply enters in the top cover air channel, so drag losses is more relatively large.When adopting up and down docking mode, the air outlet level arranges that up mouthful horizontal saliva of giving a dinner for a visitor from afar of top cover is flat to be arranged down; When adopting left and right docking mode, air outlet vertically arranges towards cold house's side, and the opening direction that top cover is given a dinner for a visitor from afar mouthful is just in time opposite with it.
2. air outlet and give a dinner for a visitor from afar fit clearance between the mouth between (0～5) mm;
Through our experimental results show that, if the relative spacing in two air ports surpasses 5mm, cold wind enters into the docking operation that top cover gives a dinner for a visitor from afar mouthful from the air outlet of air compartment will produce a large amount of losses of leaking out, still can not be too low, if be less than or equal to 0mm, will cause the unlatching difficulty of top cover.
3. the supply air duct of top cover is oblique projection in the projection of its air-supply porch, and its tilt angle alpha is more than or equal to 135 °;
Such optimization can effectively reduce cold wind and enter from the cold house the top cover to blow road process because the local resistance loss that break-in caused.Here can also further make the top cover to blow air channel form a level and smooth arc-shaped transition section in the corner of outside oblique projection, or establish a small-sized conducting element.
4. the top cover to blow road is uiform section air channel or convergent air channel;
When the convergent air channel was adopted in the top cover to blow air channel, its angle of throat should be less than 50 °.
5. described top cover air channel is two, be oppositely disposed on the top cover in a longitudinal direction, and the wind pushing hole number on each air channel is no less than 4, the even layout.
6. the air outlet of described top cover is for waiting bore or not waiting bore to arrange.
If adopt the uiform section air channel, manufacturing process is simple relatively, but according to fluid mechanics principle, when the wind pushing hole of cold wind on being arranged in the air channel flowed out successively, its flow velocity was constantly to reduce.Like this, though the wind pushing hole on each air channel equidistantly, etc. bore arrange the cold flow of sending from each air outlet and incomplete same successively.This has influenced the purpose of balanced ventilation to a certain extent.But when we make the air outlet bore when increasing successively along air supply direction, be the balanced ventilation that can realize waiting flow, but the manufacturing process relative complex.
If adopt convergent face air channel, though along with cold wind constantly flows out, because the air channel is a convergent, as long as bore design in air port is proper, the influence that in the time of will eliminating cold blast rate and constantly reduce flow velocity is caused.Like this, when bores such as air outlets, the balanced ventilation that all equates of air output and the air supply velocity that just can realize each wind pushing hole when equidistantly arranging.For reduce eddy current as far as possible, when the air channel was the convergent air channel, its angle of throat should be less than 50 °.
No matter be the continuous increase of air outlet bore, or the convergent of duct cross-section, all make the manufacturing process relative complex of refrigerator-freezer top cover, so guaranteeing on certain uniform basis of air-supply, for easy to process, being configured to of employing: the top cover to blow road is the uiform section air channel, air outlet bore such as is, equidistantly arranges on it.
7. described return air inlet can be located at cold house's side of diapire, also can be located at the opposite side of the cold house of diapire, also can be evenly distributed on the bottom surface.Preferred implementation is back two kinds.
When return air inlet is located at the opposite side of cold house of diapire, make the cold wind can both be through the cold house district, cold is effectively utilized.
When return air inlet is evenly distributed on the diapire, is more conducive to air-flow and passes indoor food.
Above scheme can be carried out the combination between the scheme in the intelligible scope of those skilled in the art.
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 be pressure wind circulating cooling system work schematic diagram of the present invention (among this figure, top cover give a dinner for a visitor from afar mouthful with the fan housing air outlet for docking up and down);
Fig. 2 is the perspective view of a specific embodiment of the present invention;
The give a dinner for a visitor from afar cutaway view of the specific embodiment that mouth cooperates with the air compartment air outlet of the top cover of Fig. 3 when showing that Fig. 2 embodiment works
Fig. 4 is give a dinner for a visitor from afar mouthful work schematic diagram when docking about the air compartment air outlet is of top cover of the present invention
Fig. 5 is the construction process schematic diagram in top cover to blow of the present invention air channel
Fig. 6 is the schematic perspective view of a specific embodiment of air outlet of the present invention
The specific embodiment
The invention provides a kind of air supply method of air-cooling type refrigerator and adopt the air-cooling type refrigerator of this kind air supply method.
Now describe the air supply method of air-cooling type refrigerator of the present invention in conjunction with specific embodiments in detail and adopt the concrete structure of the air-cooling type refrigerator of this kind air supply method.
As shown in Figure 1, the course of work of air-cooling type refrigerator of the present invention is: at first make cold air by the evaporimeter in the refrigeration system 41 in air compartment 21, again by cold wind being blown out from air compartment air outlet 25 with the blower fan 22 that is located in the air compartment 21, again by top cover give a dinner for a visitor from afar mouthfuls 26 with the water conservancy diversion that docks of air compartment air outlet 25, cold wind is tapped into respectively in the supply air duct 27 of top cover 13, send successively by the air outlet 28 that is laid in its side, make cold wind from top to bottom enter cold house 14; In cold house 14, cold wind and food heat-shift; Then, because blower fan 22 enters in the air-return duct 210 that is arranged in the refrigerator-freezer bottom via return air inlet 29 in the suction force effect that return air inlet 29 produces, and gets back to again in the air compartment 21 and is cooled off by evaporimeter 41, sent again again after the cooling, process thus constantly moves in circles.
Specifically describe the structure of this specific embodiment down below:
One. cabinet body structure
As shown in Figure 1 and Figure 2, cabinet of the present invention comprises sidewall 11, diapire 12, top cover 13 and cold house 14.Wherein sidewall 11 is divided into again: front side wall 111, rear wall 112, left side wall 113, right side wall 114.
The setting of air compartment 21 and some refrigeration plants (as compressor 43) for the benefit of, right side wall 114 is a ladder-type structure, forms by three sections, from top to bottom be successively: wall 1141, middle planomural 1142, downwardly depending wall 1143 upward hang down.
For realizing air supply method of the present invention, top cover 13 is provided with the air outlet 28 in the Forced Air Cooling System, and diapire 12 is provided with the return air inlet 29 in the Forced Air Cooling System.For realizing the wind circulation, be respectively equipped with the air channel in top cover 13, right side wall 114, the diapire 12 and be connected between air outlet 28 and the return air inlet 29, mutual group becomes air channel structure 213 of the present invention.(seeing the specific descriptions in the back pressure wind circulating cooling system for details)
Because cold wind is sent from top cover 13, the temperature of top cover 13 inwalls is relatively low, and the inside and outside wall temperature difference is bigger.For further reducing refrigerating loss, it is insulation material that top cover 13 is preferably polyurethane.
Two, refrigeration system
Refrigeration system of the present invention is a vapour compression refrigeration system, comprises evaporimeter 41, condenser (not expressing among the figure), compressor (figure does not look out), throttling arrangement (figure does not look out).
Wherein, condenser is built in refrigerator-freezer front, rear, left and right and the diapire, and evaporimeter 41 is arranged in the air compartment 21.
For further improving the efficient of present embodiment refrigeration unit, the evaporimeter 41 of this refrigeration system has been done further optimization: wherein, evaporimeter 41 adopts the forced convertion finned tube evaporator, width along refrigerator-freezer, be horizontally installed in the air compartment 21, blower fan 22 is above evaporimeter 41 and relative with it, and spacing between the two remains on 10mm between the 100mm.Discover through us,, all can cause the reduction of evaporimeter refrigerating efficiency and the increase of fan energy consumption if blower fan 22 is excessive or too small with the spacing of evaporimeter 41.
As further optimization, the structure parameter optimizing of evaporimeter is: caliber Φ 11～Φ 19, inned coefficient 8～14mm; Fin height 8～12mm, spacing of fins 3～8mm, fin thickness 0.2～0.3mm.
Now, the COP value of refrigerator-freezer generally between 2.8-4.5, experiment showed, that the utility model passes through the science configuration of refrigeration system and the optimization of structural parameters, can make COP of the present utility model higher by 0.2～0.6% than the COP mean value of the refrigerator-freezer of prior art.
Three, force the wind circulating cooling system
As shown in Figure 1 and Figure 2, the pressure wind circulating cooling system of this refrigerator-freezer comprises the air outlet 28 that is located on the top cover 13 generally, is located at the return air inlet 29 on the diapire 12 and connects the air channel structure 213 between air outlet 28 and the return air inlet 29 and is located at blower fan 22 in this air channel structure 213.
In the present embodiment, the mode that cold wind is sent into top cover 13 is that mouthfuls 26 the left and right sides docking mode of giving a dinner for a visitor from afar of air outlet 25 and the supply air duct 27 that is positioned at top cover 13 by the air compartment 21 that is positioned at sidewall is realized.
As shown in Figure 1 and Figure 2, air channel structure 213 is formed in top cover 13, right side wall 114 and the diapire 12, and forms air compartment 21 in going up of refrigerator-freezer right side wall 114 hung down wall 1141.The top of air compartment 21 is provided with fan outlet 23, and the bottom of air compartment 21 communicates with air-return duct 210 on being located at diapire; Described evaporimeter 41 is located in this air compartment 21 with blower fan 22, both be arrange up and down and blower fan 22 relative with its blower fan 22 air outlet axle center.
Be protection blower fan 22 and the eddy current loss that reduces air outlet 25 places, the outside of air compartment 21 can further be provided with the outer surface side that a fan housing 24 overlays on air compartment 21.Offer air outlet 25 on the top of fan housing 24 again.The air compartment air outlet of opening on fan housing 24 25 is not relative with fan outlet 23, does not damage because of foreign matter enters fan housing 24 with the protection blower fan.
For realizing uniform air-supply, air compartment air outlet 25 preferred two, both sides are oppositely arranged.Be accordingly, air delivery duct on the top cover 13 27 preferred 2, and two air channels are arranged in parallel in the relative both sides of top cover 13 along the length direction of top cover 13.At this moment, more even for making air-supply, the ratio that the spacing between two air channels accounts for the whole top cover width is preferably between 1: 2 to 1: 3.
For cold wind is introduced in the air channel 27 of top cover 13 from air compartment air outlet 25, be positioned at the outside oblique projection of air delivery duct 27 its air-supply entrances of top cover 13, and form a horizontal direction give a dinner for a visitor from afar mouthfuls 26, this position, direction, shape, size, number of giving a dinner for a visitor from afar mouth 26 all matches with air compartment air outlet 25, just docks with air outlet 25 when being seated on the cabinet 1 with assurance top cover 13.Refrigerator-freezer top cover 13 is an a kind of lifting type door lid, with cabinet 1 for being hinged.
For better realizing the give a dinner for a visitor from afar sealing of mouthfuls 26 joint up and down of air outlet 25 and top cover, the top cover of present embodiment is given a dinner for a visitor from afar mouthful and the air compartment air outlet also can be done further optimization: as shown in Figure 3, one ring groove 211 with flexible seal ring 212 is set at air compartment air outlet 25 places, and give a dinner for a visitor from afar mouthfuls 26 thickness of the width of groove 212 and top cover equates.When giving a dinner for a visitor from afar, top cover is given a dinner for a visitor from afar in mouthful 26 embedding annular grooves 211.The setting of annular groove 211, the sealing function of flexible seal ring 212 air-supply inleakage lacking very of making docking mode up and down in addition, and be not subject to give a dinner for a visitor from afar mouthfuls 26 with the influence of air outlet 25 joints wearing and tearing.
Certainly, give a dinner for a visitor from afar mouthfuls 26 docking mode and not only be confined to this kind docking mode up and down of air compartment air outlet 25 and top cover is such as the left and right sides docking mode that also can adopt as shown in Figure 4.At this moment, for guaranteeing that cold wind enters in the top cover air channel 27 with left and right sides docking mode smoothly at give a dinner for a visitor from afar mouthfuls 26 joint of air compartment air outlet 25 and top cover, should guarantee that cold wind gives a dinner for a visitor from afar mouthfuls 26 joint clearance (0 at air compartment air outlet 25 and top cover, 5mm), experimental results show that through us, if this spacing surpasses 5mm, enter into give a dinner for a visitor from afar mouthfuls 26 docking operation of top cover at cold wind from the air outlet 25 of air compartment 21 and can produce the very big loss of leaking out.Certainly can not be too low, if be less than or equal to 0mm, just cause the unlatching difficulty of top cover 13 easily, we are preferred 2mm.
Further optimization as present embodiment top cover to blow road 27, for reducing drag losses, the projection of top cover to blow road 27 its air-supply entrances is oblique projection, its angle [alpha] can be more than or equal to 135 degree, we preferred 145 °, and one level and smooth changeover portion is arranged at the medial surface of the corner of the outside oblique projection in top cover to blow road.Certainly, for reducing the eddy current of corner, can also add a diversion component in the inboard of corner, these a little measures can both reduce because wind direction changes the drag losses that is brought, and have also suppressed the generation of eddy current.
As the further optimization of present embodiment top cover to blow road 27 and air outlet 28, top cover to blow road 27 adopts the uiform section air channel, bores such as air outlet 28 employings, the equidistant layout.But this is not unique selection, and air delivery duct 27 also can make convergent cross section while air outlet 28 bores and increase successively; Also can make the uiform section air channel and join the unequal-interval layout that does not wait bore air outlet or air outlet.
If adopt the uiform section air channel, the air channel manufacturing process is to simply, but according to fluid mechanics principle, when the wind pushing hole 28 of cold wind on being arranged in air channel 27 flowed out successively, its flow velocity was constantly to reduce, certainly this reduction value and little.Like this, though we the air outlet on each air channel 27 28 equidistantly, etc. bore arrange that the cold flow of sending from each air outlet is actual and inequality successively.This has influenced our balanced ventilation purpose to a certain extent.When so we increase the wind pushing hole bore successively along air supply direction, be the balanced ventilation that can realize waiting flow, certain this scheme manufacturing process relative complex.
If adopt convergent face air channel, because the air channel is a convergent, as long as 28 bores design in air port is proper, the influence that in the time of will eliminating cold blast rate and constantly reduce flow velocity is caused.Like this, the balanced ventilation that all equates when air outlet 28 bores such as grade, air output and the air supply velocity that just can realize each air outlet 28 when equidistantly arranging.For reduce eddy current as far as possible, when the convergent air channel was adopted in the air channel, its angle of throat should be less than 50 °.
No matter be the continuous increase of air outlet bore, or the convergent of duct cross-section, its manufacturing process is relative complex all, so guaranteeing on certain uniform basis of air-supply, easy for manufacturing process selected the uiform section air delivery duct, waits bore, equidistantly arranges air outlet 28.
For realize the uiform section air channel, etc. the air outlet bore, etc. the maximized balanced ventilation of air outlet pitch arrangement, through our experimental study, on each air channel, arrange 4 to 12 air outlets, the spacing of every adjacent two air outlets is between 8cm to 14cm, the bore in each air port equates, and the Energy Efficiency Ratio of refrigerator-freezer is higher between 10mm-30mm the time.Present embodiment further is optimized for it: arrange 10 air outlets on each air channel; The spacing of every adjacent two air outlets is 12cm; The bore in each air port equates, is 20mm.
The shape in cross section, air delivery duct adopts rectangle or circle etc., but preferably long rectangle, because air channel 27 is to be arranged on the top cover 13, the design of long square-section can be done top cover 13 very thickly.
For reduce as far as possible cold wind when entering top cover 13 drag losses and don't cause that top cover does too thick, test discovery through this researcher, when top cover to blow air channel 27 thickness 5mm between the 30mm, width is preferable to resultant effect between the 150mm at 50mm.As the further optimization of present embodiment, top cover to blow air channel 27 thickness are chosen as 20mm, width is chosen as 100mm.
As further optimization, top cover air channel 27 adopts complex method to make in the present embodiment, promptly earlier opens a kerve on top cover, makes cover plate again, cover plate is fixed on the kerve removably afterwards again, forms the air channel of sealing.As shown in Figure 5, present embodiment comprises: kerve 271 and outer cover plate 272; Outer cover plate 272 is fixed on the opening of kerve 271 removably.
Be further easy processing, outer cover plate 272 be divided into several sections by the number of the wind pushing hole of layout on it produce that its hop count equates with the air outlet number.
Process the air channel in this way, not only technology is simple, and needn't do top cover very thickly.
The air outlet 28 that is arranged in top cover is expansion formula structure.Because expansion formula structure can increase the diffusion effect when sending under the cold air, cold wind is more evenly distributed.Certainly, easy in order to process, we also can directly adopt flat pore structure; For increasing the jeting effect of air-flow, we also can adopt air diffuser formula air outlet.
As shown in Figure 6, as the air outlet of the expansion formula structure of present embodiment, it comprises: a waist shape recess 281 that is formed on the cover plate outside, be looped around the waist shape projection 282 of recess periphery and open spout 283 in waist shape recess 281 inlet air flow sides.Spout 283 is opened in waist shape recess 281 inlet air flow sides the drag losses in the time of can reducing air-flow from spout 283 outflows.The effect of expanding the formula structure has been played in the cooperation of waist shape projection 282 and waist shape recess 281.Be further to reduce the drag losses at air outlet place, also can be on waist shape projection along the direction of air current flow relative have two little openings 284, its A/F preferably is not more than 3mm.
Return air inlet 29 can be located at the air compartment opposite end of refrigerator-freezer diapire 12, and also uniformly dispersing is on diapire 12 but also can be located at the air compartment end of refrigerator-freezer diapire 12, and present embodiment preferably is located at the air compartment opposite end of refrigerator-freezer diapire 12.For preventing that foreign matter from stopping up return air inlet 29 and causing return air ineffective, return air inlet 29 is further established a fan housing or shutter etc.
Return air inlet 29 communicates with air-return duct 210, and air-return duct 210 is located in the diapire of refrigerator-freezer, and its opposite side communicates with air compartment 21.
It more than is exactly the concrete structure of the Forced Air Cooling System of present embodiment.For instant food takes out, be beneficial to air-flow again and pass, some slide rails (scheming not shown) also can further be set on cold house's inner bag, be used for hanging and hang basket and the extension basket is moved along slide rail.
Four, defrosting system
In order to realize the effect of frostless refrigerator-freezer, present embodiment adopts automatic defrosting system.
The automatic defrosting system that present embodiment adopted comprises: heater--electrical heating wire; Control device--frost removal timer; Drip tray and drainpipe.Wherein electrical heating wire is attached on the evaporimeter; Control device is arranged in the cold house of refrigerator-freezer, and drip tray is located at above the housing of compressor or on the base plate of compressor, pass the cabinet insulation layer defrost water guided to above the drip tray by the white water pipe of row, utilize condenser heat or (with) the shell heat of compressor evaporates it.
Because evaporimeter 41 place's temperature are minimum, frosting is mainly in herein, and by circulating of air, the frost in other places is through distillation in the cabinet, and the physical action that condenses comes together in evaporator surface, forms the frosting concentration zones.When frosting acquires a certain degree or works certain hour, electrical heating wire 31 work in the refrigeration cassette, the beginning defrost starts frost removal timer simultaneously, and the water of thawing flows out to drip tray from the drainpipe of air compartment 21 bottoms, under the heat effect of compressor, be evaporated in the air, when frosting was all melted, under the effect of timer (scheming not shown), electrical heating wire quit work, start the compressor starts refrigeration, to reach the purpose of automatic defrosting.Just because of the setting of automatic defrosting system makes the present invention can realize automatic defrosting, realize frostless refrigerator-freezer.
The concrete setting and the operation principle of the electrical heating wire of this defrosting system, frost removal timer, row's frost water pipe and drip tray are same as prior art, are omitted here.
Because this refrigerator-freezer is an air supply mode from the top down, cold house's upper temp is low, so this refrigerator-freezer also can comprise an ice making box except that comprising cabinet, refrigeration system, pressure wind circulating cooling system, defrost system, be arranged on by dismountable mode and be fixed on the top cover 13, this moment, top cover often need be provided with an ice making box carriage.
Here the air channel structure 213 that is noted that indication among the present invention is general designations of top cover to blow air channel 27, air compartment 21, diapire return airway 210.
But the sidewall integrative-structure at air compartment 21 places is composite construction also.
Claims (11)
1. the air supply method of an air-cooling type refrigerator, utilize forcing the wind circulating cooling system to make cold wind carry out forced circulation in refrigerator-freezer flows food is cooled off, it is characterized in that: air outlet is arranged on the top cover of refrigerator-freezer, return air inlet is arranged on the diapire of refrigerator-freezer, makes cold wind from top to bottom be admitted to the cold house from top cover.
2. the air supply method of air-cooling type refrigerator as claimed in claim 1 is characterized in that: the mode that cold wind is sent into top cover be by the air compartment that is positioned at sidewall air outlet and the supply air duct that is positioned at top cover give a dinner for a visitor from afar mouthful dock up and down or the realization of left and right sides docking mode.
3. the air supply method of air-cooling type refrigerator as claimed in claim 2, it is characterized in that: the number that is provided with of air outlet is no less than 8, arranges that evenly its minimum air supply velocity is not less than 1000L/min.
4. an air-cooling type refrigerator that adopts the described air supply method of claim 1 comprises cabinet, refrigeration system, defrost system, pressure wind circulating cooling system,
Wherein:
---cabinet comprises sidewall, top cover, diapire and the cold house that is surrounded by the three, and wherein sidewall is divided into front side wall, rear wall, left side wall, right side wall again;
---force the wind circulating cooling system to comprise the air channel structure between air outlet, return air inlet, connection air outlet and the return air inlet and be located at blower fan in this air channel structure,
It is characterized in that:
The supply air duct at described air outlet and place thereof is located on the refrigerator-freezer top cover; Return air inlet and the air-return duct that communicates with it thereof are located on the diapire of refrigerator-freezer.
5. air-cooling type refrigerator as claimed in claim 4, it is characterized in that: described air channel structure forms an air compartment on the left side of refrigerator-freezer or the top of right side wall, described evaporimeter and blower fan are located in this air compartment, the top of air compartment is provided with the air outlet into top cover to blow, and the bottom of air compartment communicates with air-return duct on being located at diapire; Deliver to for the cold wind that air compartment is provided in the supply air duct of top cover, the top cover to blow road is in the outside projection in its porch, and form the mouth of giving a dinner for a visitor from afar, the position of this mouth of giving a dinner for a visitor from afar, shape, size all match with the air compartment air outlet, both just in time dock when closing on the cabinet fully with the assurance top cover, described top cover is the formula of lifting, and is hinged between the cabinet.
6. air-cooling type refrigerator as claimed in claim 5 is characterized in that: the docking mode that the air outlet of described air compartment and top cover are given a dinner for a visitor from afar mouthful for dock up and down or about dock; When docking up and down, two air ports are the horizontal direction setting, and two air ports are the vertical direction setting during butt joint about being.
7. air-cooling type refrigerator as claimed in claim 6 is characterized in that: between the air outlet of described air compartment and the spacing 0～5mm between the top cover, the available rubber seal butt joint air outlet and the mouth of giving a dinner for a visitor from afar are so that guarantee that the air channel is tight.
8. air-cooling type refrigerator as claimed in claim 7 is characterized in that: described top cover to blow road is oblique projection in the projection direction of its air-supply porch, and its angle a is more than or equal to 135 degree.
9. according to described any air-cooling type refrigerator of claim 4 to 8, it is characterized in that: described top cover to blow air channel is uiform section air channel or convergent air channel.
10. air-cooling type refrigerator according to claim 9 is characterized in that: described top cover air channel is two, be oppositely disposed on the top cover in a longitudinal direction, and the wind pushing hole number on each air channel is no less than 4, the even layout.
11. air-cooling type refrigerator according to claim 10 is characterized in that: the air outlet of described top cover is for waiting bore or not waiting bore to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510077175 CN1880894A (en) | 2005-06-16 | 2005-06-16 | Air blowing method employing top cover to blow air and air-cooling type refrigerator employing the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510077175 CN1880894A (en) | 2005-06-16 | 2005-06-16 | Air blowing method employing top cover to blow air and air-cooling type refrigerator employing the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1880894A true CN1880894A (en) | 2006-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510077175 Pending CN1880894A (en) | 2005-06-16 | 2005-06-16 | Air blowing method employing top cover to blow air and air-cooling type refrigerator employing the method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1880894A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103868307A (en) * | 2014-02-14 | 2014-06-18 | 澳柯玛股份有限公司 | Omnibearing refrigeration refrigerator |
| CN104374134A (en) * | 2014-12-04 | 2015-02-25 | 合肥华凌股份有限公司 | Cabinet freezer |
| CN106642906A (en) * | 2017-02-17 | 2017-05-10 | 合肥美菱股份有限公司 | Horizontal type frost-free refrigerator |
| CN107246754A (en) * | 2017-06-22 | 2017-10-13 | 海信容声(广东)冷柜有限公司 | A kind of air-cooled horizontal refrigerator |
| CN107449205A (en) * | 2017-08-03 | 2017-12-08 | 澳柯玛股份有限公司 | Unilateral double-deck air channel air-cooling type refrigerator |
| CN107449202A (en) * | 2017-08-03 | 2017-12-08 | 澳柯玛股份有限公司 | Air-cooling type refrigerator |
| CN107490229A (en) * | 2017-08-03 | 2017-12-19 | 澳柯玛股份有限公司 | Double-deck four air channel air-cooling type refrigerators |
| CN107965957A (en) * | 2017-11-15 | 2018-04-27 | 澳柯玛股份有限公司 | A kind of air-cooling type refrigerator |
| CN108800732A (en) * | 2018-05-30 | 2018-11-13 | 青岛海尔特种电冰柜有限公司 | Refrigerator liner component and Horizontal type wind-cooling refrigerator |
| CN108826800A (en) * | 2018-08-17 | 2018-11-16 | 广州领鲜冷链科技有限公司 | A kind of pressure difference increasing enthalpy refrigeration system |
| CN109140863A (en) * | 2018-07-09 | 2019-01-04 | 青岛海尔特种电冰柜有限公司 | Horizontal type wind-cooling refrigerator |
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| CN103868307B (en) * | 2014-02-14 | 2016-02-24 | 澳柯玛股份有限公司 | A kind of refrigerator of comprehensive refrigeration |
| CN103868307A (en) * | 2014-02-14 | 2014-06-18 | 澳柯玛股份有限公司 | Omnibearing refrigeration refrigerator |
| CN104374134A (en) * | 2014-12-04 | 2015-02-25 | 合肥华凌股份有限公司 | Cabinet freezer |
| CN106642906A (en) * | 2017-02-17 | 2017-05-10 | 合肥美菱股份有限公司 | Horizontal type frost-free refrigerator |
| WO2018233460A1 (en) * | 2017-06-22 | 2018-12-27 | 海信容声(广东)冷柜有限公司 | Forced-air cooling refrigerator |
| CN107246754A (en) * | 2017-06-22 | 2017-10-13 | 海信容声(广东)冷柜有限公司 | A kind of air-cooled horizontal refrigerator |
| CN107449205A (en) * | 2017-08-03 | 2017-12-08 | 澳柯玛股份有限公司 | Unilateral double-deck air channel air-cooling type refrigerator |
| CN107449202A (en) * | 2017-08-03 | 2017-12-08 | 澳柯玛股份有限公司 | Air-cooling type refrigerator |
| CN107490229A (en) * | 2017-08-03 | 2017-12-19 | 澳柯玛股份有限公司 | Double-deck four air channel air-cooling type refrigerators |
| CN107449202B (en) * | 2017-08-03 | 2023-09-05 | 澳柯玛股份有限公司 | Air-cooled refrigerator |
| CN107449205B (en) * | 2017-08-03 | 2023-07-04 | 澳柯玛股份有限公司 | Single-side double-layer air duct air-cooled refrigerator |
| CN107965957A (en) * | 2017-11-15 | 2018-04-27 | 澳柯玛股份有限公司 | A kind of air-cooling type refrigerator |
| CN107965957B (en) * | 2017-11-15 | 2023-10-13 | 澳柯玛股份有限公司 | Air-cooled refrigerator |
| CN108800732A (en) * | 2018-05-30 | 2018-11-13 | 青岛海尔特种电冰柜有限公司 | Refrigerator liner component and Horizontal type wind-cooling refrigerator |
| CN108800732B (en) * | 2018-05-30 | 2024-03-26 | 青岛海尔特种电冰柜有限公司 | Liner assembly for refrigerator and horizontal air-cooled refrigerator |
| CN109140863A (en) * | 2018-07-09 | 2019-01-04 | 青岛海尔特种电冰柜有限公司 | Horizontal type wind-cooling refrigerator |
| CN109140863B (en) * | 2018-07-09 | 2022-11-25 | 青岛海尔特种电冰柜有限公司 | Horizontal air-cooled refrigerator |
| CN108826800A (en) * | 2018-08-17 | 2018-11-16 | 广州领鲜冷链科技有限公司 | A kind of pressure difference increasing enthalpy refrigeration system |
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Open date: 20061220 |