CN214701408U - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
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- CN214701408U CN214701408U CN202120963505.3U CN202120963505U CN214701408U CN 214701408 U CN214701408 U CN 214701408U CN 202120963505 U CN202120963505 U CN 202120963505U CN 214701408 U CN214701408 U CN 214701408U
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Abstract
The utility model provides a refrigerator, which comprises a refrigerating chamber and a freezing chamber, wherein the refrigerating chamber is provided with a refrigerating air channel, and the rear wall of the freezing chamber is provided with a second air channel cover which defines a main air channel together with the refrigerating air channel and a foam laminate which defines a freezing air channel together with the second air channel cover; a fan shielding cavity communicated with the main air duct and the refrigerating chamber is formed on the foam laminate; a first air port and a second air port which are vertically and obliquely arranged are formed on the fan shielding cavity; the first air port and the second air port are communicated with the fan shielding cavity and the freezing air duct; the transverse distance between the first air opening and the second air opening is gradually reduced along the direction from bottom to top; the utility model can effectively reduce the air quantity loss and increase the effective air quantity; in addition, the main air duct and each storage compartment are disconnected when the evaporator defrosts, so that the temperature fluctuation in the storage compartments caused by the hot air generated when the evaporator defrosts entering the storage compartments is avoided.
Description
Technical Field
The utility model belongs to the technical field of domestic refrigerator, especially, relate to a refrigerator.
Background
The air-cooled refrigerator air duct is arranged on the rear wall of the freezing chamber, and the evaporator is arranged behind the air duct. The evaporator influences the refrigeration effect because of frosting too much, therefore every interval period need change frost, and the heating pipe below the evaporator is heated continuously during the time of changing frost, and the temperature of evaporator can rise to about 7 degrees temporarily. According to the principle that hot air rises and sinks with cold air, the hot air enters the air duct through the air guide ring and then enters the freezing chamber through the air duct during defrosting, so that the temperature of the freezing chamber is increased, the hot air carries water to coat food materials to form ice crystals, and the surfaces of the food materials are easy to rot and deteriorate, ice cream and the like are in a melting state and the like.
In view of this, the present invention is proposed.
Disclosure of Invention
The utility model provides a to foretell technical problem, provide a refrigerator.
In order to achieve the above object, the utility model discloses a technical scheme be:
a refrigerator, comprising:
the rear wall of the refrigerating chamber is provided with a refrigerating air duct;
a freezing chamber;
the second air duct cover is arranged on the rear wall of the freezing chamber; the second air duct cover and the rear wall of the freezing chamber jointly define a main air duct provided with an evaporator;
the foam layer plate and the second air duct cover jointly define a freezing air duct communicated with the freezing chamber;
the fan shielding cavity is formed on the foam laminate and communicated with the main air duct; a third opening communicated with the refrigerating air duct is formed in the fan shielding cavity, and a fan is installed in the fan shielding cavity;
a first air port and a second air port which are vertically and obliquely arranged are formed on the fan shielding cavity; the first air port and the second air port are communicated with the fan shielding cavity and the freezing air duct; the distance between the first air opening and the second air opening is gradually reduced along the direction from bottom to top;
when the evaporator defrosts, the first air port, the second air port and the third opening are closed, and the refrigerating chamber and the freezing chamber are both disconnected with the fan shielding cavity.
As an implementable manner, the rotation center of the fan is recorded as O in projection in a plane parallel to the rear wall of the freezing chamber1(ii) a With D1Is a circle of diameter marked as circle O2(ii) a Wherein D is1：D∈[1.05，1.4]；
The first air port and the second air port are distributed in the circle O2The outer periphery of (a).
As a practical way, the straight line of the lower edge of the first tuyere is marked as L1And the straight line of the lower edge of the second air opening is marked as L2(ii) a Wherein, the straight line L1And a straight line L2Are all equal to the circle O2Tangent.
As an implementable manner, the straight line L1And the circle O2The tangent point of (A) is marked as N1Straight line L2And the circle O2The tangent point of (A) is marked as N2(ii) a The vertical symmetry plane of the fan is marked as M1Vertical symmetry plane M1And the circle O2The intersection point of (A) is marked as N0；∠N1O2N0∈[0°，30°]；∠N2O2N0∈[0°，30°]。
As a practical way, angle N1O2N0＝∠N2O2N0＝15°。
As an implementable manner, the plane where the first air inlet is located is marked as a first air inlet plane P1Vertical symmetry plane M1And the first tuyere surface P1The dihedral angle is gamma1，γ1∈[5°，15°](ii) a Wherein, γ1≤∠N1O2N0。
As an implementable manner, the plane where the second air inlet is located is marked as a second air inlet plane P2(ii) a Vertical symmetry plane M1And the second tuyere surface P2The dihedral angle is gamma2，γ2∈[5°，15°](ii) a And gamma is2≤∠N2O2N0。
As an implementable manner, γ1＝γ2＝10°。
As a practical way, a first shielding piece, a second shielding piece and a third shielding piece are formed on the foam laminate; the first shielding piece and the second shielding piece are arranged at the upper end part of the foam layer plate, and the upper end surfaces of the first shielding piece and the second shielding piece are coplanar with the upper end surface of the foam layer plate in the area where the first shielding piece and the second shielding piece are arranged;
the first shielding piece and the third shielding piece jointly define a first opening, and the second shielding piece and the third shielding piece jointly define a second opening; the first opening is provided with a first air door component with a first air port, and the second opening is provided with a second air door component with a second air port;
the first shielding piece, the second shielding piece, the third shielding piece, the first air door component, the second air door component are respectively close to the end part of the second air duct cover and are matched with the second air duct cover, and the foam layer plate, the first shielding piece, the second shielding piece, the third shielding piece, the first air door component, the second air door component and the second air duct cover define the fan shielding cavity together.
As an implementable manner, the third shutter comprises an airflow wall on the side close to the fan, which airflow wall forms part of a volute profile.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the utility model provides a refrigerator, which comprises a refrigerating chamber and a freezing chamber, wherein the refrigerating chamber is provided with a refrigerating air channel, and the rear wall of the freezing chamber is provided with a second air channel cover which defines a main air channel together with the refrigerating air channel and a foam laminate which defines a freezing air channel together with the second air channel cover; a fan shielding cavity communicated with the main air duct and the refrigerating chamber is formed on the foam laminate; a first air port and a second air port which are vertically and obliquely arranged are formed on the fan shielding cavity; the first air port and the second air port are communicated with the fan shielding cavity and the freezing air duct; the transverse distance between the first air opening and the second air opening is gradually reduced along the direction from bottom to top; the utility model can effectively reduce the air quantity loss and increase the effective air quantity; in addition, the main air duct and each storage compartment are disconnected when the evaporator defrosts, so that the temperature fluctuation in the storage compartments caused by the hot air generated when the evaporator defrosts entering the storage compartments is avoided.
Drawings
Fig. 1 is a schematic view of a partial structure of a refrigerator according to the present invention;
fig. 2 is a sectional view of the refrigerator of the present invention;
FIG. 3 is a schematic view of an exploded structure of an air supply unit of the refrigerator of the present invention;
fig. 4 is an exploded view of the air supply unit of the refrigerator according to another view angle;
fig. 5 is a schematic view of the whole structure of the air supply unit of the refrigerator of the present invention;
FIG. 6 is a schematic structural view of a foam laminate of the refrigerator of the present invention;
FIG. 7 is a partial schematic structural view of another perspective view of the foam laminate of the refrigerator of the present invention;
fig. 8 is a schematic structural view of a first damper assembly and a second damper assembly of the refrigerator according to the present invention;
fig. 9 is a schematic view of a partial structure of an air supply unit of the refrigerator of the present invention;
fig. 10 is a partial schematic structural view of another view angle of the air supply unit of the refrigerator of the present invention;
fig. 11 is a partial schematic structural view of another view angle of the air supply unit of the refrigerator of the present invention;
fig. 12 is a schematic view of a partial structure of an air supply unit of the refrigerator of the present invention.
In the above figures: a case 11; an air supply unit 14; a freezing air duct 141; a main air duct 15; a fan shield cavity 16; a refrigerating air duct 17; a refrigerating liner 18; a freezing bladder 19; a fan 20; a refrigerating compartment 12; a freezing chamber 13; a first air duct cover 1; a connecting air duct 90; a second air duct cover 2; an air inlet 21; a first positioning groove 22; a second positioning groove 23; a foam laminate 3; the first shutter 31; a second shutter 32; a third shutter 33; a channel 34; an airflow wall 35; a first fitting groove 36; the second fitting groove 37; a first opening 41; the second opening 42; a third opening 43; a first side wall 311; a second sidewall 312; a first damper assembly 5; a first frame 51; a first baffle plate 52; a first housing box 53; a first tuyere 50; a second damper assembly 6; a second frame 61; a second baffle 62; a second housing box 63; a second tuyere 60; a flow guide part 7; an airflow branch passage 8; a first exhaust port 91; a second air outlet 92; a third air outlet 93; and a fourth air outlet 94.
Detailed Description
The present invention is further described below in conjunction with specific embodiments so that those skilled in the art may better understand the present invention and can implement the present invention, but the scope of the present invention is not limited to the scope described in the detailed description. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
A refrigerator, as shown in fig. 1-12, comprises a box body 11, wherein the box body 11 comprises a box liner and a shell; the container encloses a storage compartment and a taking and placing opening is formed at the front end of the container. The box container comprises a container rear wall corresponding to the taking and placing opening.
In the embodiment, the refrigerator is provided with a plurality of refrigerator liners; the plurality of containers include a refrigerating container 18 and a freezing container 19, wherein the refrigerating container 18 is positioned on the upper side of the freezing container 19. The refrigerating chamber 12 is enclosed by the refrigerating liner 18, and a refrigerating air duct 17 is arranged on the rear wall of the refrigerating chamber 12.
Specifically, the freezing chamber 13 is surrounded by the freezing liner 19, and the rear wall of the freezing liner 19 is provided with an air supply unit 14; specifically, the air supply unit 14 includes a second air duct cover 2, a foam laminate 3, and a first air duct cover 1. Wherein, the holding chamber is injectd jointly with second wind channel lid 2 to first wind channel lid 1, and the holding intracavity is located to foam plywood 3, and one side that second wind channel lid 2 was kept away from to foam plywood 3 cooperatees with first wind channel lid 1. An air supply area is formed on the foam laminate 3, and the foam laminate 3 and the second air duct cover 2 cooperate to define a freezing air duct 141.
The second air duct cover 2 is arranged between the foam layer plate 3 and the rear wall of the liner, a main air duct 15 is defined between the second air duct cover 2 and the rear wall of the liner, and an evaporator is arranged in the main air duct 15; the bottom of the evaporator is provided with a heating pipe for defrosting the evaporator. Wherein, the second air duct cover 2 is formed with an air inlet 21, and the air inlet 21 is communicated with the main air duct 15 and the freezing air duct 141.
The foam layer plate 3 is provided with a first shielding piece 31, a second shielding piece 32 and a third shielding piece 33 which are distributed at intervals; the first shielding member 31, the second shielding member 32 and the third shielding member 33 are distributed around the periphery of the air inlet 21. The first shielding piece 31 and the second shielding piece 32 are disposed at the upper end of the foam layer plate 3, and the upper end surfaces of the first shielding piece 31 and the second shielding piece 32 are coplanar with the upper end surface of the foam layer plate 3 in the area where the first shielding piece 31 and the second shielding piece 32 are located. The above first shutter 31 and the second shutter 32 are disposed at a distance from each other, and together define the third opening 43. A side wall of the first shielding member 31 close to the second shielding member 32 is referred to as a first side wall 311, and a side wall of the second shielding member 32 close to the first shielding member 31 is referred to as a second side wall 312; wherein the first sidewall 311 and the second sidewall 312 are both arc-shaped. From bottom to top, the distance between the first sidewall 311 and the second sidewall 312 gradually decreases.
The first and third shields 31 and 33 together define a first opening 41, and the second and third shields 32 and 33 together define a second opening 42. The first opening 41 is provided with a first damper assembly 5,the second opening 42 is provided with a second damper assembly 6. The first shielding piece 31, the second shielding piece 32, the third shielding piece 33, the first air door assembly 5 and the second air door assembly 6 are respectively matched with the second air duct cover 2 at the end part close to the second air duct cover 2, and the fan shielding cavity 16 is defined by the first shielding piece 31, the second shielding piece 32, the third shielding piece 33, the first air door assembly 5, the second air door assembly 6, the foam layer plate 3 and the second air duct cover 2 together. The fan 20 is arranged in the fan shielding cavity 16, and the vertical symmetrical plane of the fan 20 is marked as M1. Wherein the third opening 43 is provided at the upper side of the fan shield cavity 16, i.e. the vertical symmetry plane M1Through the third opening 43. The first opening 41 and the second opening 42 are separated from the vertical symmetry plane M1To opposite sides of the panel. In addition, the third shielding member 33 is provided with a channel 34 communicating the upper and lower spaces thereof, so that when condensed water is generated in the fan shielding cavity 16, the condensed water flows out of the fan shielding cavity 16 through the channel 34, and the condensed water in the fan shielding cavity 16 is discharged, thereby effectively keeping the fan shielding cavity 16 dry.
In this embodiment, a connecting air duct 90 is provided in the refrigerator, one end of the connecting air duct 90 is communicated with the refrigerating air duct 17, and the other end is communicated with the third opening 43; the refrigerating air duct 17 is communicated with the fan shielding cavity 16 through a connecting air duct 90. Wherein, the end of the refrigerating air duct 17 close to the connecting air duct 90 is provided with a refrigerating air door, and the refrigerating air door is opened or closed to communicate or block the refrigerating air duct 17 and the fan shielding cavity 16, so as to control the air flow in the fan shielding cavity 16 to enter the refrigerating chamber 12, thereby realizing the temperature regulation of the refrigerating chamber 12.
Specifically, the first damper assembly 5 disposed at the first opening 41 includes a first frame 51, a first baffle 52 rotatably connected to the first frame 51, and a first damper motor for driving the first baffle 52 to rotate; wherein the first frame 51 defines the first tuyere 50, and the first shutter 52 rotates to open or close the first tuyere 50. One end of the first frame 51 is provided with a first accommodating box 53 accommodating the first damper motor. In this embodiment, the first frame 51 has a rectangular shape, and defines the first tuyere 50 having a rectangular shape, and the first baffle 52 has a shape corresponding to the shape of the first tuyere 50. The first accommodating box 53 is arranged at one end of the first frame 51 and is positioned at one side of the first frame 51; namely, the first frame 51 and the first receiving box 53 are disposed in an L-shape.
The second damper assembly 6 disposed at the second opening 42 includes a second frame 61, a second baffle plate 62 rotatably connected to the second frame 61, and a second damper motor for driving the second baffle plate 62 to rotate; wherein the second frame 61 defines the second tuyere 60, and the second shutter 62 rotates to open or close the second tuyere 60. One end of the second frame 61 is provided with a second accommodating box 63 for accommodating the second damper motor. In the present embodiment, the second frame 61 is rectangular, the second tuyere 60 defined by the second frame is also rectangular, and the second baffle 62 is in accordance with the shape of the second tuyere 60. The second accommodating box 63 is arranged at one end of the second frame 61 and is positioned at one side of the second frame 61; namely, the second frame 61 and the second accommodating box 63 are arranged in an L shape. That is, the first damper assembly 5 is identical in structure to the second damper assembly 6, and is described separately herein for convenience of description.
One end of the first frame 51, which is away from the first accommodating box 53, is engaged with the first shielding member 31, and one end of the first accommodating box 53 is engaged with one end of the third shielding member 33. One end of the second frame 61, which is away from the second accommodating box 63, is matched with the second shielding member 32, and the second accommodating box 63 is matched with the other end of the third shielding member 33.
In the above, the first shielding member 31, the first frame 51, the first containing box 53, the third shielding member 33, the second containing box 63, the second frame 61, and the second shielding member 32 are disposed adjacent to each other in this order. The first accommodating box 53, the third shielding member 33 and the second accommodating box 63 are sequentially and adjacently arranged to define a lower boundary of the fan shielding cavity 16.
Specifically, the foam laminate 3 is formed with a first fitting groove 36 for fixing the first damper assembly 5 and a second fitting groove 37 for fixing the second damper assembly 6. A first positioning groove 22 and a second positioning groove 23 are formed on the second air duct cover 2; the first positioning groove 22 corresponds to the first engaging groove 36, and the second positioning groove 23 corresponds to the second engaging groove 37.
The first damper assembly 5 is mounted in the first fitting groove 36 and the first positioning groove 22, and the first damper assembly 5 is effectively sealed and fixed by the interaction force of the first fitting groove 36, the first shielding member 31, the third shielding member 33, and the first positioning groove 22. Similarly, the second damper assembly 6 is installed in the second fitting groove 37 and the second positioning groove 23, and the second damper assembly 6 is effectively fixed in a sealing manner under the interaction force of the second fitting groove 37, the second shielding member 32, the third shielding member 33 and the second positioning groove 23. The arrangement effectively ensures the tightness of the sequential connection of the first shielding piece 31, the first frame 51, the first containing box 53, the third shielding piece 33, the second containing box 63, the second frame 61 and the second shielding piece 32, and the installation is convenient.
As shown in fig. 12, the first tuyere 50 and the second tuyere 60 are arranged obliquely in the vertical direction; in this embodiment, the transverse distance between the first tuyere 50 and the second tuyere 60 is gradually reduced along the direction from bottom to top, so as to effectively reduce the air loss.
Projected in a plane parallel to the rear wall of the tank, the centre of rotation of the fan 20 is denoted O1. With D1Is a circle of diameter marked as circle O2(ii) a Wherein D is1：D∈[1.05，1.4]. The first tuyere 50, the second tuyere 60 and the third opening 43 are circumferentially distributed on the circle O2The outer periphery of (a).
Wherein, the straight line of the lower edge of the first tuyere 50 is marked as L1And the straight line of the lower edge of the second tuyere 60 is marked as L2. Wherein, the straight line L1And a straight line L2Are all equal to the circle O2Tangency; straight line L1And the circle O2The tangent point of (A) is marked as N1Straight line L2And the circle O2The tangent point of (A) is marked as N2(ii) a Vertical symmetry plane M1And the circle O2The intersection point of (A) is marked as N0；∠N1O2N0∈[0°，30°]；∠N2O2N0∈[0°，30°](ii) a In this embodiment, angle N1O2N0＝N2O2N0(ii) a Wherein, the angle is N1O2N0＝15°。
The plane of the first air inlet 50 is marked as a first air inlet plane P1The plane of the second air inlet 60 is denoted as a second air inlet plane P2(ii) a Vertical symmetry plane M1With the first windOral surface P1The dihedral angle is gamma1，γ1∈[5°，15°](ii) a Vertical symmetry plane M1And the second tuyere surface P2The dihedral angle is gamma2，γ2∈[5°，15°](ii) a Wherein, γ1≤∠N1O2N0And γ2≤∠N2O2N0. In this example, γ1＝γ210 deg.. The above arrangement is relative to the vertical symmetry plane M for the first tuyere 50 and the second tuyere 601Is limited, within the above-defined range, the air flow from the first air port 50 and the second air port 60 is more facilitated, and the wind resistance is reduced.
The third shutter 33 is provided below the third opening 43 and is provided to face the third opening 43. The third shutter 33 includes an airflow wall 35 on a side close to the third opening 43, and the airflow wall 35 is formed as a part of the scroll line. In this embodiment, the volute shape line formed by the airflow wall 35 on the third shielding member 33 is approximately replaced by an archimedean spiral line, an equilateral base type line, or an unequal base type line. In this embodiment, the diameter of the volute entrance of the volute profile formed by the airflow wall 35 is D + β D, β e [0.05, 0.15 ]. In this example, β is 0.1. The airflow wall 35 of the third shielding member 33 close to the fan 20 is a part of the volute profile, so that the air loss can be effectively reduced, the air quantity flowing out from the first air opening 50 or the second air opening 60 can be increased, and the effective air quantity can be increased.
As a practical way, the first tuyere 50 and the second tuyere 60 are about the vertical symmetry plane M1Symmetry is formed.
The lower part of the foam layer plate 3 is provided with a flow guide part 7, the flow guide part 7 corresponds to the third shielding piece 33 of the fan shielding cavity 16 in position, and a distance exists between the flow guide part 7 and the lower end of the fan shielding cavity 16. The lateral width of the flow guide portion 7 gradually decreases in the direction from bottom to top. Two airflow branch channels 8 are formed in the freezing air duct 141, the two airflow branch channels 8 are respectively located at two opposite sides of the fan shielding cavity 16 and located at two opposite sides of the flow guide part 7, and the airflow branch channels 8 extend from the upper end of the foam laminate 3 to the lower end of the foam laminate 3. That is, one of the branch ducts 8 is provided adjacent to the first tuyere 50, and the other branch duct 8 is provided adjacent to the second tuyere 60. In this embodiment, the two airflow branch ducts 8 are respectively provided with a first exhaust opening 91, a second exhaust opening 92, a third exhaust opening 93 and a fourth exhaust opening 94; the first exhaust opening 91 is disposed at the top of the corresponding airflow branch duct 8, the second exhaust opening 92 is located adjacent to the first or second air opening 50 or 60 adjacent to the airflow branch duct 8 where the second exhaust opening is located, and the third and fourth exhaust openings 93 and 94 are disposed in the area where the airflow branch duct 8 where the second exhaust opening is located below the fan shielding cavity 16.
The fan 20 works, the first baffle plate 52 and the second baffle plate 62 are opened, the first air opening 50 and the second air opening 60 are opened, and cooling air flows enter the airflow branch channel 8 on the corresponding side through the first air opening 50 and the second air opening 60; a part of the airflow entering the airflow branch duct 8 passes upward through the first exhaust port 91 and the second exhaust port 92 to enter the freezing chamber 13; another part of the air flow passes downward through the third and fourth air discharge openings 93 and 94 into the freezing chamber 13.
The fan 20 works, when the refrigerating air door is opened, the fan shielding cavity 16 is communicated with the refrigerating air duct 17, and cooling air flow enters the refrigerating air duct 17 through the connecting air pipe 90 and is guided into the refrigerating chamber 12 through the refrigerating air duct 17.
The opening and closing of the first shutter 52, the second shutter 62, and the refrigeration damper are controlled independently of each other, and are opened or closed according to the control setting of the refrigerator system.
During defrosting, a heater arranged at the bottom of the evaporator is heated to work, the first baffle plate 52, the second baffle plate 62 and the refrigerating air door are closed, and the first shielding piece 31, the first air door component 5, the third shielding piece 33, the second air door component 6, the second shielding piece 32 and the refrigerating air door are effectively isolated to effectively isolate the airflow branch passage 8, the refrigerating air duct 17 and the fan shielding cavity 16, so that the refrigerating chamber 12, the freezing chamber 13 and the fan shielding cavity 16 are isolated; so that the hot air flow entering the fan shielding cavity 16 from the air inlet 21 is blocked, and the hot air flow cannot enter the refrigerating chamber 12 and the freezing chamber 13.
When defrosting is finished, the first baffle 52, the second baffle 62 and the refrigeration air door are opened as required, cooling air flow enters the fan shielding cavity 16 from the air inlet 21, then enters the corresponding air flow branch passage 8 or the connecting air pipe 90 through the opened first air port 50 or the second air port 60 or the refrigeration air door, and enters the freezing chamber 13 or the refrigerating chamber 12 through the air outlet or the connecting air pipe 90 in the corresponding air flow branch passage 8 so as to cool the corresponding storage chamber.
The utility model discloses set up the fan and shield chamber 16, the fan shields and is formed with the branch on chamber 16 and occupies in vertical plane of symmetry M1A first tuyere 50 and a second tuyere 60 at opposite sides; the distance between the first tuyere 50 and the second tuyere 60 is gradually reduced along the direction from bottom to top to effectively reduce the air loss; in addition, the communication between the fan shielding cavity 16 and each storage compartment is cut off by controlling the on-off control of the first baffle 52 and the first baffle 62, so that the communication between the main air duct 15 and the storage compartments is cut off, the temperature fluctuation in the storage compartments caused by the hot air generated when the evaporator is defrosted entering the storage compartments is avoided, and the temperature stability of the storage compartments is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. Refrigerator, characterized in that it comprises:
the rear wall of the refrigerating chamber is provided with a refrigerating air duct;
a freezing chamber;
the second air duct cover is arranged on the rear wall of the freezing chamber; the second air duct cover and the rear wall of the freezing chamber jointly define a main air duct provided with an evaporator;
the foam layer plate and the second air duct cover jointly define a freezing air duct communicated with the freezing chamber;
the fan shielding cavity is formed on the foam laminate and communicated with the main air duct; a third opening communicated with the refrigerating air duct is formed in the fan shielding cavity, and a fan is installed in the fan shielding cavity;
a first air port and a second air port which are vertically and obliquely arranged are formed on the fan shielding cavity; the first air port and the second air port are communicated with the fan shielding cavity and the freezing air duct; along the direction from bottom to top, the transverse distance between the first air opening and the second air opening is gradually reduced;
when the evaporator defrosts, the first air port, the second air port and the third opening are closed, and the refrigerating chamber and the freezing chamber are both disconnected with the fan shielding cavity.
2. The refrigerator according to claim 1, wherein: projected in a plane parallel to the rear wall of the freezer compartment, the centre of rotation of the fan being denoted O1(ii) a With D1Is a circle of diameter marked as circle O2(ii) a Wherein D is1：D∈[1.05，1.4]；
The first air port and the second air port are distributed in the circle O2The outer periphery of (a).
3. The refrigerator according to claim 2, wherein: the straight line of the lower edge of the first air opening is marked as L1And the straight line of the lower edge of the second air opening is marked as L2(ii) a Wherein, the straight line L1And a straight line L2Are all equal to the circle O2Tangent.
4. The refrigerator according to claim 3, wherein: straight line L1And the circle O2The tangent point of (A) is marked as N1Straight line L2And the circle O2The tangent point of (A) is marked as N2(ii) a The vertical symmetry plane of the fan is marked as M1Vertical symmetry plane M1And the circle O2The intersection point of (A) is marked as N0；∠N1O2N0∈[0°，30°]；∠N2O2N0∈[0°，30°]。
5. The refrigerator of claim 4, wherein: less than N1O2N0＝∠N2O2N0＝15°。
6. The refrigerator according to claim 3, wherein: the plane where the first air inlet is located is marked as a first air inlet surface P1Vertical symmetry plane M1And the first tuyere surface P1The dihedral angle is gamma1，γ1∈[5°，15°](ii) a Wherein, γ1≤∠N1O2N0。
7. The refrigerator according to claim 6, wherein: the plane where the second air inlet is located is marked as a second air inlet surface P2(ii) a Vertical symmetry plane M1And the second tuyere surface P2The dihedral angle is gamma2，γ2∈[5°，15°](ii) a And gamma is2≤∠N2O2N0。
8. The refrigerator according to claim 7, wherein: gamma ray1＝γ2＝10°。
9. The refrigerator according to any one of claims 1 to 5, wherein: a first shielding piece, a second shielding piece and a third shielding piece are formed on the foam layer plate; the first shielding piece and the second shielding piece are arranged at the upper end part of the foam layer plate, and the upper end surfaces of the first shielding piece and the second shielding piece are coplanar with the upper end surface of the foam layer plate in the area where the first shielding piece and the second shielding piece are arranged;
the first shielding piece and the third shielding piece jointly define a first opening, and the second shielding piece and the third shielding piece jointly define a second opening; the first opening is provided with a first air door component with a first air port, and the second opening is provided with a second air door component with a second air port;
the first shielding piece, the second shielding piece, the third shielding piece, the first air door component, the second air door component are respectively close to the end part of the second air duct cover and are matched with the second air duct cover, and the foam layer plate, the first shielding piece, the second shielding piece, the third shielding piece, the first air door component, the second air door component and the second air duct cover define the fan shielding cavity together.
10. The refrigerator according to claim 9, wherein: the third shield includes an airflow wall on a side close to the fan, the airflow wall forming part of a volute profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120963505.3U CN214701408U (en) | 2021-05-07 | 2021-05-07 | Refrigerator with a door |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114719542A (en) * | 2022-03-09 | 2022-07-08 | 青岛海尔生物医疗股份有限公司 | Air duct structure of medical refrigerator and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719542A (en) * | 2022-03-09 | 2022-07-08 | 青岛海尔生物医疗股份有限公司 | Air duct structure of medical refrigerator and control method thereof |
| CN114719542B (en) * | 2022-03-09 | 2023-11-17 | 青岛海尔生物医疗股份有限公司 | Air duct structure of medical refrigerator and control method thereof |
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