CN216409447U - Air duct system of refrigerator - Google Patents
Air duct system of refrigerator Download PDFInfo
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- CN216409447U CN216409447U CN202122334319.6U CN202122334319U CN216409447U CN 216409447 U CN216409447 U CN 216409447U CN 202122334319 U CN202122334319 U CN 202122334319U CN 216409447 U CN216409447 U CN 216409447U
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Abstract
The utility model provides an air duct system of a refrigerator, comprising: the air duct assembly comprises an air duct front cover plate and an air duct rear cover plate, and the air duct rear cover plate is covered on the air duct front cover plate to limit an air supply air duct; the bottom end of the air supply duct is an air inlet of the air supply duct, and an air door is arranged in the air supply duct and used for opening and closing the air supply duct; the air duct front cover plate is also provided with a water retaining structure which is positioned below the air inlet so as to prevent water vapor from rising and condensing on the air supply air duct and the air door. According to the scheme of the utility model, the water retaining structure is arranged below the air inlet of the air supply duct, so that water vapor is prevented from rising and condensing on the air door, the air door is prevented from freezing, and the normal operation of the air door is ensured.
Description
Technical Field
The utility model relates to the field of household appliances, in particular to an air duct system of a refrigerator.
Background
During the operation of the air duct system of the air-cooled refrigerator, the evaporator needs to be heated at intervals to defrost. In the defrosting process, water vapor rises and is condensed to be attached to a fan, an air door and a wind channel wall after meeting the fan, the air door and the wind channel wall. After the defrosting process is finished, the air-cooled refrigerator starts to refrigerate normally, and condensed water on the fan, the air door and the air duct wall freezes under the action of cold air, so that the air door, the fan and the like are frozen, and the air duct system of the air-cooled refrigerator cannot run normally.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to provide a duct system for a refrigerator that overcomes or at least partially solves the above problems.
A further object of the present invention is to prevent water vapor from condensing on the air door of the air duct system, thereby preventing the air door from freezing and ensuring the normal operation of the air door.
Another further object of the present invention is to guide the condensed water on the air duct system to be smoothly discharged, thereby ensuring the normal operation of the air duct system.
In particular, the present invention provides an air duct system of a refrigerator, comprising: the air duct assembly comprises an air duct front cover plate and an air duct rear cover plate, and the air duct rear cover plate is covered on the air duct front cover plate to limit an air supply air duct; the bottom end of the air supply duct is an air inlet of the air supply duct, and an air door is arranged in the air supply duct and used for opening and closing the air supply duct; the air duct front cover plate is also provided with a water retaining structure which is positioned below the air inlet so as to prevent water vapor from rising and condensing on the air supply air duct and the air door.
Furthermore, the water retaining structure is an arc-shaped bulge and is formed by extending from the front cover plate of the air duct to one side close to the rear cover plate of the air duct; wherein the water retaining structure is bent towards one side far away from the air supply duct.
Furthermore, the water retaining structure is provided with an inclined plane which extends from the bottom end of the water retaining structure to one side close to the rear cover plate of the air duct in an inclined manner from bottom to top.
Further, the air duct system of the refrigerator further includes: and the evaporator is positioned below the water retaining structure and used for cooling the airflow flowing to the air supply duct.
Further, the air duct system of the refrigerator further includes: and the heating wire is arranged on the evaporator and used for defrosting the evaporator.
Further, the air duct system of the refrigerator further includes: the fan positioning part is positioned between the water retaining structure and the evaporator and extends from the front cover plate of the air duct to one side close to the rear cover plate of the air duct; and the fan is arranged on the fan positioning part so as to guide the air flow passing through the evaporator to the air supply duct.
Further, the fan positioning part comprises a first arc-shaped section positioned above the fan and a second arc-shaped section positioned below the fan; wherein the radians of first segmental arc and second segmental arc all with the outer peripheral edges looks adaptation of fan.
Further, a notch is formed in the second arc-shaped section and used for discharging condensed water formed on the air duct assembly.
Further, the air duct system of the refrigerator further includes: and the cover is buckled on the air duct front cover plate and used for shielding the air duct rear cover plate and the fan.
Further, the fan is a centrifugal fan, and an opening is further formed in the position, corresponding to the fan, of the housing, so that air flow can flow into the centrifugal fan through the opening conveniently.
According to the air duct system of the refrigerator, the water retaining structure is arranged below the air inlet of the air supply air duct, so that water vapor is prevented from rising and condensing on the air door, the air door is prevented from freezing, and the normal operation of the air door is ensured.
Furthermore, the air duct system of the refrigerator has the advantages that the water retaining structure is arc-shaped and convex, and the water retaining structure is provided with the inclined surface which is inclined and extends from bottom to top, so that water vapor is enabled to rise and condense on the inclined surface of the water retaining structure and then flows to two sides along the radian of the water retaining structure, and therefore condensed water is prevented from directly flowing downwards to flow to a fan below the water retaining structure, and normal operation of the fan is guaranteed.
Furthermore, the air duct system of the refrigerator provided by the utility model has the advantages that the first arc-shaped section positioned above the fan is arranged on the air duct front cover plate, so that condensed water on the air duct front cover plate can flow to two sides under the guidance of the first arc-shaped section after flowing to the first arc-shaped section, the condensed water is further prevented from flowing to the fan, and the normal operation of the fan is ensured.
Furthermore, the air duct system of the refrigerator is provided with the notch on the second arc-shaped section of the front cover plate of the air belt, so that condensed water in the air duct system can be discharged from the notch, the accumulation of the condensed water in the air duct system is avoided, and the normal operation of the air duct system is ensured.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a duct system of a refrigerator according to an embodiment of the present invention;
FIG. 2 is an exploded view of a duct system of a refrigerator according to an embodiment of the present invention;
FIG. 3 is an exploded view of another angle of the air duct system of the refrigerator according to one embodiment of the present invention;
fig. 4 is a schematic structural view of a duct system of a refrigerator according to another embodiment of the present invention;
FIG. 5 is a schematic structural view of an air duct assembly according to one embodiment of the present invention;
fig. 6 is a partially enlarged view of the area a in fig. 5.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in fig. 1 to 6. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
Fig. 1 is a schematic structural diagram of an air duct system 10 of a refrigerator according to an embodiment of the present invention. Fig. 2 is an exploded view of the air duct system 10 of the refrigerator according to one embodiment of the present invention. Fig. 3 is an exploded view of another angle of the air duct system 10 of the refrigerator according to an embodiment of the present invention.
The present embodiment provides an air duct system 10 of a refrigerator, and the air duct system 10 may generally include: the air duct assembly 100 comprises an air duct front cover plate 110 and an air duct rear cover plate 120, wherein the air duct rear cover plate 120 covers and buckles the air duct front cover plate 110 to define an air supply duct 130; the bottom end of the air supply duct 130 is an air inlet 131 of the air supply duct 130, and an air door 132 is arranged in the air supply duct 130 and used for opening and closing the air supply duct 130; the front cover plate 110 of the air duct is further provided with a water retaining structure 140, and the water retaining structure 140 is located below the air inlet 131 to prevent water vapor from rising and condensing on the air duct 130 and the air door 132.
According to the scheme of the embodiment, the water retaining structure 140 is arranged on the air duct system 10 of the refrigerator, so that the rising water vapor is condensed on the water retaining structure 140 after contacting the water retaining structure 140, the water vapor is prevented from being condensed on the air supply duct 130 and the air door 132, the air door 132 is prevented from being frozen, and the normal operation of the air door 132 is ensured.
As shown in fig. 2-3, duct back cover 120 is shorter than duct front cover 110, and duct back cover 120 covers and snaps over duct front cover 110 to collectively define supply air duct 130. The air supply duct 130 supplies air from bottom to top, an air inlet 131 is arranged at the bottom end of the air supply duct 130, and an air outlet 133 of the air supply duct 130 is arranged on the duct front cover plate 110, is positioned above the air supply duct 130, and is connected with the air supply duct 130.
In some preferred embodiments, the damper 132 is rotatably installed in the supply air duct 130, and is configured to adjust the amount of supply air of the supply air duct 130 by controlling the rotation angle of the damper 132.
In some embodiments, the duct rear cover plate 120 and the duct front cover plate 110 may define a plurality of air supply ducts 130, and one water blocking structure 140 may be disposed at the air inlet 131 of each air supply duct 130, or one water blocking structure 140 may be disposed to block water vapor from a plurality of air inlets 131 at the same time.
The water retaining structure 140 is an arc-shaped protrusion and is formed by extending from the front cover plate 110 of the air duct to a side close to the rear cover plate 120 of the air duct; wherein the water retaining structure 140 is bent towards a side away from the air duct 130.
In the solution of the present embodiment, the water blocking structure 140 is configured as an arc-shaped protrusion that bends (i.e., bends downward) toward a side away from the air supply duct 130. On one hand, after the rising water vapor is condensed on the water retaining structure 140, the rising water vapor can flow to two sides of the air duct front cover plate 110 along the radian of the water retaining structure 140, so that the condensed water is prevented from directly flowing downwards in the central area of the air duct front cover plate 110, and adverse effects are avoided on other devices (such as the fan 300 and the like) arranged below the water retaining structure 140. On the other hand, when the external liquid enters the air supply duct 130 from the air outlet 133 of the air supply duct 130 and flows downwards along the air duct front cover plate 110, the radian of the water blocking structure 140 can also guide the liquid to flow towards two sides, thereby ensuring the normal operation of other devices arranged below the water blocking structure 140.
In some preferred embodiments, the position and curvature of water stop structure 140 may be set according to the position and configuration of air supply duct 130. In some embodiments, the arc of the dam 140 is larger to better direct the condensate to both sides. In other embodiments, the arc degree of water retaining structure 140 is smaller, so that the space occupied by water retaining structure 140 on air duct front cover plate 110 along the vertical direction is reduced.
The water blocking structure 140 has an inclined surface 141, which extends from the bottom end of the water blocking structure 140 to a side close to the air duct rear cover plate 120 in an inclined manner from bottom to top.
According to the scheme of the embodiment, the water retaining structure 140 is provided with the inclined surface 141, so that water vapor can be better condensed on the water retaining structure 140 when encountering the water retaining structure 140 in the rising process. In addition, the inclined surface 141 of the water blocking structure 140 is provided such that the condensed water can flow down along the slope of the inclined surface 141, thereby preventing a large amount of condensed water from accumulating on the water blocking structure 140.
In some preferred embodiments, the inclination angle of the inclined surface 141 of the water blocking structure 140 and the size of the cross-sectional area of the water blocking structure 140 may be set according to the mechanism of the air supply duct 130, the cross-sectional area of the air supply duct 130, the air supply amount, and the like, so as to ensure the air supply effect of the air supply duct 130 and the water blocking effect of the water blocking structure 140.
Fig. 4 is a schematic structural diagram of an air duct system 10 of a refrigerator according to another embodiment of the present invention.
The air duct system 10 of the refrigerator may further include: and an evaporator 200 located below the water blocking structure 140 for cooling the air flowing to the air supply duct 130.
The evaporator 200 of the embodiment is disposed below the water retaining structure 140, i.e., below the air supply duct 130, so that the air flow is subjected to heat exchange by the evaporator 200 and then enters the air supply duct 130 after becoming cold air, thereby ensuring the refrigeration effect of the refrigerator.
The air duct system 10 of the refrigerator may further include: and a heater wire 210 provided on the evaporator 200 for defrosting the evaporator 200.
During the operation of the air duct system 10 of the refrigerator, the air is mixed with the external moisture to exchange heat with the evaporator 200, which may result in the continuous frosting on the surface of the evaporator 200. In the solution of this embodiment, the evaporator 200 is provided with the heating wire 210 surrounding the evaporator 200, and the evaporator 200 is periodically heated by the heat of the heating wire 210, so as to remove the frost attached to the evaporator 200, thereby ensuring the normal operation of the evaporator 200.
During defrosting of the evaporator 200, a part of water vapor is generated while the frost ice is melted into water. After the water vapor rises and condenses on the damper 132 of the supply air duct 130, the water vapor freezes into ice when the refrigeration system starts to cool normally, thereby affecting the normal operation of the damper 132. According to the scheme of the embodiment, the water retaining structure 140 is arranged, so that the rising of water vapor is blocked, the air door 132 is prevented from being frozen, and the normal operation of the air door 132 is ensured.
FIG. 5 is a schematic structural view of an air duct assembly 100 according to one embodiment of the present invention. Fig. 6 is a partially enlarged view of the area a in fig. 5.
The air duct system 10 of the refrigerator may further include: the fan positioning part 150 is positioned between the water retaining structure 140 and the evaporator 200 and is formed by extending from the air duct front cover plate 110 to one side close to the air duct rear cover plate 120; and a fan 300 mounted on the fan positioning portion 150 to guide the air flow passing through the evaporator 200 to the air supply duct 130.
In the scheme of this embodiment, still be provided with fan location portion 150 and install fan 300 on it between manger plate structure 140 and evaporimeter 200 to make the air current can flow upwards after carrying out the heat transfer with evaporimeter 200, flow to manger plate structure 140 and air supply duct 130, and then guaranteed air supply effect in air supply duct 130.
The fan positioning portion 150 includes a first arc segment 151 located above the fan 300 and a second arc segment 152 located below the fan 300; wherein the arcs of the first arc-shaped segment 151 and the second arc-shaped segment 152 are matched with the outer circumference of the fan 300.
In the refrigerating process of the refrigerator, if the condensed water on the fan 300 is too much, the fan 300 is frozen, so that the refrigerating effect of the refrigerator is poor. The normal requirements of users cannot be met, a large amount of power consumption of the refrigerator can be caused, and energy conservation and emission reduction are not facilitated.
According to the scheme of the embodiment, the first arc-shaped section 151 and the second arc-shaped section 152 are respectively arranged above and below the fan 300, so that the first arc-shaped section 151 and the second arc-shaped section 152 surround the fan 300, and the fan 300 is positioned and protected.
As shown in the figure, the first arc-shaped section 151 is an arc-shaped protrusion bent towards the fan 300, so that condensed water on the water retaining structure 140 can flow to both sides of the fan 300 along the radian of the first arc-shaped section 151 in the process of flowing downwards after encountering the first arc-shaped section 151, thereby preventing the condensed water from flowing to the fan 300, preventing the fan 300 from freezing, and ensuring the normal operation of the fan 300.
The second arcuate segment 152 may also be formed with a notch 153 for draining condensation formed on the air duct assembly 100.
In the embodiment, the second arc-shaped section 152 is provided with the notch 153, so that the condensed water accumulated on the air duct assembly 100 can be smoothly discharged along the notch 153 after flowing to the second arc-shaped section 152, and the influence on the normal operation of the fan 300 caused by the excessive condensed water accumulated at the second arc-shaped section 152 is avoided.
In some preferred embodiments, the second arc-shaped segment 152 may be provided with a plurality of notches 153 to facilitate better drainage of the condensed water. In addition, the plurality of notches 153 are arranged, so that the phenomenon that condensed water cannot be normally discharged after the single notch 153 is accidentally blocked can be avoided.
In some embodiments, a drain pipe corresponding to the notch 153 may be further disposed below the notch 153, so that the condensed water just flows into the drain pipe to drain the air duct system 10, thereby ensuring that the fan 300 and the damper 132 are not frozen after the evaporator 200 starts to operate normally.
The air duct system 10 of the refrigerator may further include: and the cover 160 is buckled on the air duct front cover plate 110 and used for shielding the air duct rear cover plate 120 and the fan 300.
In the solution of this embodiment, the fan 300 and the air duct rear cover plate 120 are shielded by the housing 160, so that the air duct structure of the refrigeration system is improved, and the aesthetic property of the air duct system 10 is further improved.
The fan 300 is a centrifugal fan 300, and the casing 160 is further provided with an opening 161 at a position corresponding to the fan 300, so that the air flow can flow into the centrifugal fan 300 through the opening 161.
In the solution of this embodiment, the fan 300 is set as the centrifugal fan 300, and the corresponding opening 161 is disposed on the casing 160, so that the air flow can smoothly flow to the air supply duct 130 through the opening 161 under the action of the centrifugal fan 300 after exchanging heat with the evaporator 200 located outside the casing 160, thereby ensuring the refrigeration cycle of the air duct system 10.
According to the scheme of the embodiment, the water retaining structure 140 is arranged below the air inlet 131 of the air supply duct 130, so that water vapor generated in the defrosting process is prevented from rising and condensing on the air supply duct 130 and the air door 132, the normal operation of the air door 132 is ensured, and the normal operation of the air duct system 10 is ensured.
Further, according to the scheme of this embodiment, the protruding fan positioning portion 150 is disposed around the fan 300, so that the condensed water on the air duct front cover plate 110 can flow to both sides under the guidance of the first arc-shaped section 151 after flowing to the first arc-shaped section 151 of the fan positioning portion 150, thereby preventing the condensed water from flowing to the fan 300 to cause the fan 300 to freeze, and further ensuring the normal operation of the air duct system 10.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An air duct system of a refrigerator, comprising:
the air duct assembly comprises an air duct front cover plate and an air duct rear cover plate, and the air duct rear cover plate is covered on the air duct front cover plate to limit an air supply air duct;
the bottom end of the air supply duct is an air inlet of the air supply duct, and an air door is arranged in the air supply duct and used for opening and closing the air supply duct;
the air duct front cover plate is also provided with a water retaining structure, and the water retaining structure is positioned below the air inlet to prevent water vapor from rising and condensing on the air supply air duct and the air door.
2. The air duct system of a refrigerator according to claim 1,
the water retaining structure is an arc-shaped bulge and is formed by extending from the front cover plate of the air duct to one side close to the rear cover plate of the air duct; wherein
The water retaining structure is bent towards one side far away from the air supply duct.
3. The air duct system of a refrigerator according to claim 1,
the water retaining structure is provided with an inclined plane, and the water retaining structure extends from the bottom end to one side close to the air duct rear cover plate from bottom to top in an inclined mode.
4. The air duct system of a refrigerator according to claim 1, further comprising:
and the evaporator is positioned below the water retaining structure and used for cooling the airflow flowing to the air supply duct.
5. The air duct system of the refrigerator according to claim 4, further comprising:
and the heating wire is arranged on the evaporator and used for defrosting the evaporator.
6. The air duct system of the refrigerator according to claim 4, further comprising:
the fan positioning part is positioned between the water retaining structure and the evaporator and formed by extending from the air duct front cover plate to one side close to the air duct rear cover plate;
and the fan is arranged on the fan positioning part so as to guide the airflow passing through the evaporator to the air supply duct.
7. The air duct system of the refrigerator according to claim 6,
the fan positioning part comprises a first arc-shaped section positioned above the fan and a second arc-shaped section positioned below the fan; wherein
The radian of the first arc-shaped section and the radian of the second arc-shaped section are matched with the outer periphery of the fan.
8. The air duct system of a refrigerator according to claim 7,
and a notch is formed on the second arc-shaped section and used for discharging condensed water formed on the air duct assembly.
9. The air duct system of the refrigerator according to claim 6, further comprising:
and the cover is buckled on the air duct front cover plate and used for shielding the air duct rear cover plate and the fan.
10. The air duct system of the refrigerator according to claim 9,
the fan is a centrifugal fan, and an opening is further formed in the position, corresponding to the fan, of the housing, so that air flow can flow into the centrifugal fan through the opening conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122334319.6U CN216409447U (en) | 2021-09-26 | 2021-09-26 | Air duct system of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122334319.6U CN216409447U (en) | 2021-09-26 | 2021-09-26 | Air duct system of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216409447U true CN216409447U (en) | 2022-04-29 |
Family
ID=81295467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122334319.6U Active CN216409447U (en) | 2021-09-26 | 2021-09-26 | Air duct system of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216409447U (en) |
-
2021
- 2021-09-26 CN CN202122334319.6U patent/CN216409447U/en active Active
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