A kind of refrigerator supply air system, refrigerator and air supply mode
Technical field
The present invention relates to a kind of refrigerator, particularly a kind of refrigerator supply air system, refrigerator and air supply mode, belong to refrigerator technical field.
Background technology
Large volume wind cooling refrigerator comprises casing, door body, in casing, be provided with rack, drawer etc., rear pars intramuralis at box liner is provided with supply air duct, evaporimeter and centrifugal blower are set in air channel, return air inlet operated by rotary motion, in the bottom of casing, is provided with multiple air outlets on the rear wall of box liner.Hot blast enters air channel by return air inlet, carries out heat exchange with evaporimeter, under the effect of centrifugal fan, sends through each air outlet, forms cold wind circulation in casing, reduces the temperature in casing.
At present large volume wind cooling refrigerator generally adopts three kinds of air supply modes: as shown in Figure 1, what adopt is parallel air supply mode, parallel the sending in casing of multiple air outlets through evaporimeter cold wind after treatment from refrigerator top, the shortcoming of this air supply mode is, the cold wind blowing out from air outlet directly blows food, be unfavorable for food fresh keeping, food easily stops air channel simultaneously, affects airflow circulating.As shown in Figure 2, employing be unidirectional upper outlet system of air, all air outlets all upwards air-supply, the shortcoming of this air supply mode is that the temperature of lower of casing is higher, easily produces temperature offset.As shown in Figure 3, employing be bilateral to outlet system of air, to two side feedings of casing, the shortcoming of this air supply mode is that cold wind directly blows sidewall and door seal, causes loss of refrigeration capacity larger.And these three kinds of air supply modes are all easily not smooth, inhomogeneous because blowing, and there is air-supply dead angle.
Because adopt above-mentioned three kinds of air supply modes, in refrigerator the installation of rack all as shown in Figure 4, in order to leak out, layer frame 2 install after and the rear wall 4 of casing 1 between reserve a gap 19, this design easily increases the weight of the phenomenon that refrigerator food taint of odour and cold run off.
Summary of the invention
Main purpose of the present invention is to address the above problem and is not enough, provides a kind of refrigerator indoor good without dead angle, temperature homogeneity, refrigerator supply air system, refrigerator and air supply mode that refrigerating efficiency is high.
For achieving the above object, technical scheme of the present invention is:
A kind of refrigerator supply air system, comprise casing and be arranged on multiple layers of frame in described casing, the spatial separation in described casing is become multiple regions by multiple described layer frame, on described casing in each region, all offer air outlet, the described air outlet that is positioned at the region on described casing top is quadrant elevation type air outlet, and the described air outlet that is positioned at the region at described casing middle part is diving type air outlet.
Further, described quadrant elevation type air outlet is surrounded by the wind deflector on top and the baffle plate of bottom, and described wind deflector to the inside air channel extends, and described baffle plate laterally described layer frame direction stretches out.
Further, the section of described wind deflector is camber line or for oblique line, and the section of described baffle plate is camber line or for bowl-type or be oblique line.
Further, the upper edge of described baffle plate is positioned at same plane with the lower edge of described wind deflector, or the upper edge of described baffle plate is higher than the lower edge of described wind deflector.
Further, described quadrant elevation type air outlet is also provided with at least a slice blade between described wind deflector and baffle plate.
Further, the elevation coverage of described quadrant elevation type air outlet is 25 °-50 °.
Further, the angle of depression scope of described diving type air outlet is 25 °-50 °.
Further, the lower air outlet that is positioned at described casing bottommost is horn mouth, described bell-mouthed oblique having a down dip below.
Another technical scheme of the present invention is:
A kind of refrigerator, comprises above-mentioned refrigerator supply air system, between the two side of the dual-side of described layer frame and back and described casing and rear wall, seals and is connected.
Another technical scheme of the present invention is:
A kind of air supply mode of above-mentioned refrigerator supply air system, in the regional of being separated by layer frame, independent air-feeding forms the partial circulating separating separately, and adopt quadrant elevation type air-supply at the upper area of casing, and adopt diving type air-supply in the central region of casing, cause the reverse circulation of casing central region, downward air-flow and the inverted draft formation flow perturbation that crosses.
To sum up content, a kind of refrigerator supply air system of the present invention, refrigerator and air supply mode, compared with prior art, tool has the following advantages:
(1) equal independent air-feeding in the regional of refrigerator, make refrigerator indoor without dead angle, temperature homogeneity is good, refrigerating efficiency is high, and cold wind can directly not blow food, the preservativity of food also has obvious lifting.
(2) quadrant elevation type air-out coordinates with diving type air-out, regional area forms contrary circulation, cause flow perturbation initiatively, because making semi-enclosed layer set up meter, the air supply mode of this uniqueness becomes possibility, thereby overcome cold inequality, reduce cold and run off, further promoted temperature equalization and improved refrigerating efficiency, and effectively having improved the problem of each interlayer food taint of odour.
(4) adopt quadrant elevation type air outlet structure, thoroughly solved food and stopped the possibility in air channel.
(5) the lower air outlet of bottom adopts bell-mouth structure of air, because cross section, air outlet place becomes greatly suddenly, reduces blast, makes cold enter gently drawer, has improved preservativity, and the condensed water simultaneously also helping in air channel is discharged, can the residual ice of aggegation.
Accompanying drawing explanation
Fig. 1 is the parallel air supply mode structural representation of prior art;
Fig. 2 is the unidirectional upper air-out mode structural representation of prior art;
Fig. 3 is that prior art bilateral is to air-out mode structural representation;
Fig. 4 is prior art layer frame and box body assembling structure schematic diagram;
Fig. 5 is distribution of air flow schematic diagram of the present invention;
Fig. 6 is quadrant elevation type air outlet structure one schematic diagram of the present invention;
Fig. 7 is quadrant elevation type air outlet structure two schematic diagrames of the present invention;
Fig. 8 is quadrant elevation type air outlet structure three schematic diagrames of the present invention;
Fig. 9 is diving type air outlet structure schematic diagram of the present invention;
Figure 10 is air outlet structure schematic diagram under the present invention.
As shown in Figures 1 to 10, casing 1, layer frame 2, drawer 3, rear wall 4, return air inlet 5, quadrant elevation type air outlet 6,
Diving type air outlet 7, parallel air outlet 8, door body 9, wind deflector 10, baffle plate 11, expanded material 12, blade 13, air channel 14, lug boss 15, lower air outlet 16, evaporimeter 17, centrifugal blower 18, gap 19.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail:
As shown in Figure 5, a kind of refrigerator of the present invention, comprise casing 1, top in casing 1 and central space are provided with multiple layers of frame 2, lower space in casing 1 arranges multiple drawers 3, the spatial separation in casing 1 is become multiple relatively independent regions by multiple layers of frame 2, on the rear wall 4 of the casing 1 in each region, all offers air outlet, in the bottom of casing 1, return air inlet 5 is set.Air channel 14, evaporimeter 17 and centrifugal blower 18 are set in the inner side of rear wall 4, and air outlet and return air inlet 5 are connected with air channel 14.Under effect with centrifugal blower 18, the return air in casing 1 enters in air channel 14 through return air inlet 5, carries out after heat exchange with evaporimeter 17, and cold air blows out from each air outlet, reduces the temperature in casing 1.Air channel 14, each air outlet form the supply air system of refrigerator.
As shown in Figure 5, the air outlet in three regions on casing 1 top is quadrant elevation type air outlet 6, and the air outlet in a region at casing 1 middle part is diving type air outlet 7, and three air outlets corresponding to drawer of casing 1 bottom are parallel air outlet 8.
Adopt diving type air outlet 7 in central region, can form contrary circulation in central region, and diving type air outlet 7 to design air quantity larger, in this region, produce adverse current disturbance, cold abundance herein, can meet cooling demand fast, as ice maker.
Through a large amount of experimental verifications, preferably the elevation coverage of quadrant elevation type air outlet 6 is 25 °-50 °, and wherein optimum value is 45 °, and the angle of depression scope of diving type air outlet 7 is 25 °-50 °, and wherein optimum value is 45 °.Quadrant elevation type air outlet 6 and diving type air outlet 7 all arrange near the layer frame 2 near top, region, so that air-flow produces circulation under the stopping of layer frame 2 in region, air-flow are distributed more even.
The air supply mode of this refrigerator is, upper space in casing 1 adopts quadrant elevation type air-out, and central space adopts diving type air-out, and the air-flow on top flows downward along the passage in refrigerator door 9 fronts, inverted draft at zone line and middle part crosses, and causes flow perturbation initiatively.This air supply mode has overcome cold inequality, reduces cold and runs off, and has further promoted temperature equalization and has improved refrigerating efficiency, makes refrigerator indoor without dead angle.In addition, due to the design of quadrant elevation type air outlet 6 and diving type air outlet 7, cold wind can directly not blow food, and the preservativity of food also has obvious lifting.
Because of equal independent air-feeding in regional, air quantity is in admirable proportion, make semi-enclosed layer set up meter and become possibility, as shown in Figure 5, between the two side of the layer dual-side of frame 2 and back and casing 1 and rear wall 4, all seal and be connected, form semienclosed space, between layer frame 2 and the rear wall 4 of casing 1, no longer need the reserved gap 19 that leaks out for Air Flow as shown in Figure 4, cold wind is after the partial circulating that completes each region leaves, directly through systemic circulation return air, reduce the chance that enters other regions, and then effectively improve the problem of each interlayer food taint of odour, also improved refrigerating efficiency.
As shown in Figure 6 to 8, quadrant elevation type air outlet 6 is surrounded by the wind deflector 10 on top and the baffle plate 11 of bottom, the inner side of wind deflector 10 and baffle plate 11 is expanded material 12, wind deflector 10 extends to air channel 14 directions of rear wall 4 inner sides, 11, the baffle plate laterally direction of layer frame 2 stretches out, and the opening between wind deflector 10 and baffle plate 11 forms quadrant elevation type air outlet 6.The structure of quadrant elevation type air outlet 6 can be three kinds of forms: as shown in Figure 6, the section of wind deflector 10 and baffle plate 11 is all arc line shaped, the tangential direction that the bearing of trend of baffle plate 11 is the elevation angle; As shown in Figure 7, the section of wind deflector 10 is downward-sloping oblique line, the bowl-type that baffle plate 11 is bent upwards to employing; As shown in Figure 8, the section of wind deflector 10 and baffle plate 11 is oblique line shape, and between wind deflector 10 and baffle plate 11, be also provided with at least a slice blade 13, form a kind of structure of venetian blind type, this structure is under the effect of blade 13, air-flow can flow out from multiple directions, makes the air-flow distribution in this region more even, is conducive to airflow circulating.
As shown in Figure 6, in the present embodiment, the upper edge of baffle plate 11 is positioned at same plane with the lower edge of wind deflector 10, or the upper edge of baffle plate 11 is higher than the lower edge of wind deflector 10, quadrant elevation type air outlet 6 can be stashed like this, can not see the quadrant elevation type air outlet 6 rear wall 4 from the front of refrigerator, in improving performance, almost can't see air channel 14 and expanded material 12 from front, make product more attractive in appearance.Separately, because baffle plate 11 extends obliquely, under the stopping of baffle plate 11, food can not stop quadrant elevation type air outlet 6, and then guarantees the gas flow in region, and defrosting water also under the stopping of baffle plate 11 from internal reflux, can not flow to outside.
As shown in Figure 9, the lug boss 15 that diving type air outlet 7 has a down dip and protrudes for casing 1 rear wall 4 is oblique, offers a gas channel and forms the diving type air outlet 7 of downward air-out in the inside of lug boss 15.
As shown in figure 10, nethermost lower air outlet 16 in three parallel air outlets 8 of casing 1 bottom, for horn mouth, bell-mouthed oblique having a down dip below, bell-mouthed top approximate horizontal, because lower air outlet 16 becomes greatly suddenly in cross section, exit, reduces blast, make cold enter gently drawer 3, improved preservativity.Meanwhile, the angle of inclination is conducive to condensed water in air channel 14 from flowing out here, guarantees that draining is unobstructed, can the residual ice of aggegation.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.