WO2019154144A1

WO2019154144A1 - Air channel cover plate and freezer

Info

Publication number: WO2019154144A1
Application number: PCT/CN2019/073329
Authority: WO
Inventors: 任慧来; 马新翠; 米桂华; 付占朋; 魏京强
Original assignee: 青岛海尔特种电冰柜有限公司
Priority date: 2018-02-08
Filing date: 2019-01-28
Publication date: 2019-08-15
Also published as: CN108458538A

Abstract

An air channel cover plate (1) and a freezer. The air channel cover plate (1) comprises a front cover plate (4) and an upper cover plate (5) connected to the front cover plate (4). A front air outlet (6) is arranged at a surface of the front cover plate (4). Side air outlets (19) are respectively arranged at two sides of the front cover plate (4). An opening (8) is arranged at the upper cover plate (5). An air guide bar (7) is provided at the opening (8). The opening (8) and the air guide bar (7) together form an upper air outlet. The air channel cover plate (1) and the freezer improve structures of existing air channel cover plates, thereby solving problems of generation of frost and condensate water at an upper portion of an air channel cover plate.

Description

Air duct cover and freezer

Technical field

The present invention relates to the field of refrigeration technology, and in particular, to a duct cover and a refrigerator.

Background technique

At present, frost-free freezer has become a new development trend. Generally, frost-free freezer is air-cooled. Its working principle is to use air for cooling. When high-temperature air flows through the built-in evaporator (separate from the inner wall of the freezer), Due to the high air temperature and low evaporator temperature, the heat exchange between the two directly reduces the temperature of the air. At the same time, the air is blown into the freezer. The frost-free freezer is to reduce the temperature of the freezer through this continuous circulation. The air duct cover applied to the air-cooled frost-free freezer is mainly three-side air outlet, which is the front side and the left and right sides of the front cover, respectively, as shown in Fig. 7. During the operation of the freezer of the air duct cover of this structure, frost and condensation may occur on the upper part of the air duct cover.

How to improve the existing air duct cover structure and solve the phenomenon of frosting and condensation on the upper part of the air duct cover is a problem that needs to be solved at present.

Summary of the invention

The technical problem to be solved by the present invention is to provide a duct cover and a freezer, and to improve the existing air duct cover structure to solve the problem of frosting and condensation on the upper part of the air duct cover.

The technical solution provided by the present invention is a windshield cover, comprising a front cover and an upper cover connected to the front cover, the front cover is provided with a front air outlet, the front cover A side air outlet is disposed on each side of the board, and the upper cover is provided with an opening. The opening is provided with an air guiding strip, and the opening and the air guiding strip form an upper air outlet.

Further, the air guiding strip is provided with a plurality of guiding ribs, and an air outlet channel is formed between the plurality of guiding ribs.

Further, the guiding rib located at a middle portion of the air guiding strip is a strip rib perpendicular to an axial direction of the air guiding strip, and the strip rib has at least one, located at the strip rib The guiding ribs on both sides are arrow-shaped ribs, and the arrow-shaped ribs arrow points to the strip-shaped ribs, and the arrow-shaped ribs have at least two.

Further, one side of the two ends of the air guiding strip is provided with strip-shaped protrusions for preventing the passage of wind, and the strip-shaped protrusions and one end of the arrow-shaped ribs at both ends of the air guiding strip connection.

Further, the angle of the arrow along the arrow rib in the direction from the middle of the air guiding strip to the end of the air guiding strip gradually decreases.

Further, an error-preventing protrusion is disposed on one end of one of the strip-shaped ribs, and the error-proof protrusion and the strip-shaped protrusion are located on the same side of the air guiding strip, and the opening is correspondingly disposed There is a groove that is coupled to the error-proof projection.

Further, the air guiding strip is provided with a buckle, and the buckle is engaged with the side of the opening.

Further, the two ends of the air guiding strip are respectively provided with a cylindrical through hole, and the upper cover is correspondingly provided with a screw hole, and the cylindrical through hole and the screw hole are simultaneously provided with screws.

The invention also provides a refrigerator comprising a door lining, a fan mounting plate and a fan disposed on the fan mounting plate, the side wall of the fan mounting plate being provided with the air duct cover as described above.

Further, the door lining is provided with a recess, and the recess has a gap with the air guiding strip.

Compared with the prior art, the advantages and positive effects of the present invention are:

The invention provides a duct cover and a freezer, wherein a strip-shaped opening is formed on the upper cover of the air duct cover, a wind guiding strip is arranged on the strip opening, and the strip opening and the air guiding strip form an upper air outlet, the upper air outlet The air outlet vents to the upper part of the air duct cover to prevent frost and condensation on the upper part of the air duct cover; the guide air strip is provided with a plurality of guide ribs, and the guide rib position plays the role of wind guiding. It also plays a role in strengthening the support of the air guiding strip; because the air volume on the front side of the air guiding strip is larger than the air volume in the rear side, an anti-error bump is arranged on one of the guiding ribs to facilitate the installation of the air guiding strip; The refrigerator of the air duct cover according to the invention is provided with a recess on the door lining, and a gap is formed between the recess and the air guide strip to prevent condensation.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic structural view of a duct cover according to an embodiment of the present invention;

2 is a top plan view of a duct cover according to an embodiment of the present invention;

3 is a top plan view showing an air guiding strip installed on an air duct cover according to an embodiment of the present invention;

4 is a schematic structural view of an air guiding strip according to an embodiment of the present invention;

Figure 5 is a partial enlarged view of A of Figure 4;

6 is a schematic view showing the cooperation between the air guiding strip and the door lining according to an embodiment of the present invention;

Fig. 7 is a schematic structural view of the prior art.

In the figure, 1-air duct cover, 2-door lining, 3-fan mounting plate, 4-front cover, 5-up cover, 6-front air outlet, 7-wind guide, 8-open, 9 - Groove, 10-stripe rib, 11-arrow rib, 12-clip, 13-bar bulge, 14-anti-error bump, 15-column through hole, 16-wind channel, 17- Screw hole, 18-recess, 19-side air outlet, 20-fan.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The present invention provides a duct cover. As shown in FIG. 1, FIG. 2 and FIG. 3, the duct cover 1 includes a front cover 4 and an upper cover 5 connected to the front cover 4, and the inside of the refrigerator cabinet. When the fan mounting plate 3 is assembled, the front cover 4 covers the side wall of the fan mounting plate 3, and the upper cover 5 covers the upper wall of the fan mounting plate 3. The front cover 4 is provided with a front air outlet 6 on the surface thereof, and the front air outlet 6 is located close to the upper cover 5. Side vents 19 are respectively provided on both sides of the front cover 4, with reference to FIG. The upper cover 5 is provided with a strip-shaped opening 8, and the opening 8 is provided with an air guiding strip 7, and the opening 8 and the air guiding strip 7 form an upper air outlet. For convenience of description, the side where the front cover 4 is defined is the front side of the air duct cover 1, and the side where the upper cover 5 is located is the upper side of the air duct cover 1. The front air outlet 6 is ventilated toward the front side of the duct cover 1, and the side air outlet 19 is ventilated toward the side of the air duct cover 1, and the upper air outlet vents to the upper side of the air duct cover 1 to realize the air passage. The air outlet on the four sides of the cover plate 1 effectively prevents frosting and condensation of the air duct cover 1.

Specifically, as shown in FIG. 4 and FIG. 5, a plurality of guiding ribs are disposed on a side surface of the wind guiding strip 7, and an air passage 16 is formed between the plurality of guiding ribs, and the fan is mounted on the fan mounting plate 3. The blown air flows out of the upper cover 5 through the air outlet passage 16. The guiding rib position plays a role of guiding the wind, and also plays a role of reinforcing the wind guiding strip 7. The guiding ribs can be specifically set according to actual needs and simulation calculations, so that the air duct cover 1 achieves an optimal air blowing effect. In the present embodiment, the guide ribs located at the center of the wind deflector 7 are strip ribs 10 which are perpendicular to the axial direction of the wind deflector 7, and the strip ribs 10 have at least one. The guide ribs on both sides of the strip rib 10 are arrow ribs 11, and the arrows of the arrow ribs 11 point to the strip ribs 10, and the arrow ribs 11 have at least two. Preferably, the number of the strip-shaped ribs 10 is two, and the number of the arrow-shaped ribs 11 is eight, which are symmetrically disposed on both sides of the strip-shaped ribs 10, that is, four sides are respectively disposed on each side of the strip-shaped ribs 10 Arrow shaped ribs 11. Further, along the direction from the middle of the air guiding strip 7 to the end of the air guiding strip 7, the angle of the arrow of the arrow rib 11 is gradually reduced, so that the wind blown by the fan 20 can be used for the front, rear, left and right of the wind up cover 5 Directions go out.

Since the temperature of the upper cover 5 near the side of the freezer compartment is lower than the temperature of the side of the upper cover 5 away from the freezer compartment, that is, the temperature of the side of the upper cover 5 close to the front cover 4 is lower than that of the upper cover 5 The temperature of one side of the cover 4, so that the side of the upper cover 5 close to the front cover 4 is more prone to frosting and condensation, and the upper cover 5 needs more wind near the side of the front cover 4. To eliminate the frost and condensation, that is, the amount of air discharged from the front side of the upper cover 5 is larger than the amount of air on the rear side of the upper cover 5. In order to realize that the amount of air blown on the front side of the upper cover 5 is larger than the amount of air on the rear side of the upper cover 5, in the present embodiment, strips are provided on one side of the wind guide strip 7 for preventing wind from passing therethrough. 13, that is, a strip-shaped projection 13 is provided on the side of the wind guide strip 7 away from the front cover 4, and the strip-shaped projection 13 is connected to one end of the arrow-shaped rib 11 at both ends of the air guiding strip 7.

In order to prevent the installation of the air guiding strip 7 from being wrong, it is ensured that the air volume of the front side of the upper cover 5 is larger than the air volume of the rear side of the upper cover 5. As shown in FIG. 5, an anti-defense is provided on one end of one of the strips 10 The error projection 14 is provided on the same side of the air guiding strip 7 as the error preventing projection 14 and the strip projection 13. A recess 9 is provided correspondingly to the opening 8 of the upper cover 5 in cooperation with the error-proof projection 14, as shown in FIG.

The air guiding strip 7 is provided with a buckle 12, and the buckle 12 is engaged with the side of the opening 8, and the air guiding strip 7 is fixedly connected to the upper cover 5. In order to make the connection between the air guiding strip 7 and the upper cover 5 more reliable, further, a cylindrical through hole 15 is respectively disposed at both ends of the air guiding strip 7, and the upper cover 5 is correspondingly provided with a screw hole 17, which is cylindrical The through hole 15 and the screw hole 17 are simultaneously provided with screws, and the air guiding strip 7 and the upper cover 5 are connected by screws. Of course, the manner of connecting the air guiding strip 7 to the upper cover 5 is not limited to the implementation described in this embodiment. In other embodiments, the air guiding strip 7 can be connected to the upper cover 5 by welding.

The invention also provides a refrigerator, comprising a door lining 2, a fan mounting plate 3 and a fan 20 mounted on the fan mounting plate 3. The side wall of the fan mounting plate 3 is provided with the air duct cover 1 described in this embodiment. . The front cover 4 covers the side wall of the fan mounting plate 3, and the upper cover 5 covers the upper wall of the fan mounting plate 3, and is effectively passed through the front air outlet 6, the side air outlet and the upper air outlet on the air duct cover 1. Prevent the frosting and condensation of the air duct cover 1 and improve the cooling effect of the freezer. Further, the door lining 2 is provided with a recess 18 having a gap between the recess 18 and the air guiding strip 7 to effectively prevent frosting and condensation. A schematic diagram of the cooperation between the duct cover 1 and the door lining 7 is shown in FIG. 6. In the present embodiment, the gap between the recess 18 and the air guiding strip 7 is at least 6 mm.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A windshield cover includes a front cover and an upper cover connected to the front cover, a front air outlet is disposed on a surface of the front cover, and sides of the front cover are respectively provided with sides The air outlet is characterized in that the upper cover is provided with an opening, and the opening is provided with an air guiding strip, and the opening and the air guiding strip form an upper air outlet.
The air duct cover according to claim 1, wherein the air guiding strip is provided with a plurality of guiding ribs, and an air outlet channel is formed between the plurality of guiding ribs.
The air duct cover according to claim 2, wherein the guide rib located at a middle portion of the air guiding strip is a strip rib perpendicular to an axial direction of the air guiding strip, the strip The ribs have at least one, and the guiding ribs on both sides of the strip rib are arrow ribs, and the arrow ribs arrow points to the strip ribs, and the arrow ribs have at least two.
The air duct cover according to claim 3, wherein one side of both ends of the air guiding strip is provided with a strip-shaped protrusion for preventing wind from passing therethrough, and the strip-shaped protrusion is located at One ends of the arrow-shaped ribs at both ends of the air guiding strip are connected.
The air duct cover according to claim 4, wherein an angle of an arrow of the arrow rib along a direction from a middle portion of the air guiding strip to an end of the air guiding strip is gradually decreased .
The air duct cover according to claim 4, wherein one of said strip-shaped ribs is provided with an error-proof projection on one end thereof, and said error-preventing projection and said strip-shaped projection are located at said guide On the same side of the wind strip, the opening is correspondingly provided with a groove that is coupled to the error-proof protrusion.
The air duct cover according to any one of claims 1 to 6, wherein the air guiding strip is provided with a buckle, and the buckle is engaged with a side of the opening.
The duct cover according to claim 7, wherein the two ends of the air guiding strip are respectively provided with a cylindrical through hole, and the upper cover is correspondingly provided with a screw hole, and the column is connected A screw is inserted into the hole and the screw hole at the same time.
A refrigerator, comprising a door lining, a fan mounting plate, and a fan disposed on the fan mounting plate, wherein the side wall of the fan mounting plate is provided with the device according to any one of claims 1-8 Air duct cover.
The refrigerator according to claim 9, wherein the door lining is provided with a recess, and the recess has a gap with the air guiding strip.