CN102914116A

CN102914116A - Refrigeration plant

Info

Publication number: CN102914116A
Application number: CN2011102245654A
Authority: CN
Inventors: 朱卫忠; 陈秀鹏; 鲁松涛; 张江文
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd
Priority date: 2011-07-31
Filing date: 2011-07-31
Publication date: 2013-02-06
Anticipated expiration: 2031-07-31
Also published as: CN102914116B

Abstract

The invention relates to a refrigeration plant. The refrigeration plant (1) comprises storage chambers (2 and 3), containers (31) inside the storage chambers (2 and 3), and an air flue plate (10) for forming an air channel (5), and the air flue plate (10) comprises at least one exhaust port (15) for discharging cold air to the containers (31). According to the proposal disclosed by the invention, the air flue plate (10) comprises a pit (42); the pit (42) comprises a lateral wall (43) extending in the longitudinal direction, and the exhaust port (15) is arranged at the lateral wall (43).

Description

Refrigeration device

[ technical field ]

The present invention relates to a refrigeration device, such as a domestic refrigerator, wine chest, freezer or the like.

[ background art ]

In order to even out the temperature distribution in the storage compartment of a refrigeration appliance, it is known to provide the storage compartment with an air circulation device. Chinese utility model CN2515612Y discloses a cold air baffle device, which comprises a substantially L-shaped baffle plate/air passage plate disposed next to the top wall and the rear wall of a storage chamber for limiting the air passage. The front end of the horizontal top plate of the air duct plate is provided with an outlet for discharging cold air, and the vertical plate is provided with a plurality of outlets. The air in the storage chamber is introduced into the air passage through the discharge port by a fan, and is discharged into the storage chamber from the top of the storage chamber through the discharge port after being directly/indirectly cooled by the evaporator.

In addition, in the solution disclosed in chinese patent CN1254652C, the lower wall of the air channel at the top of the storage chamber has multiple sets of discharge ports, which output downward air flow. Because the cold air moves forwards, the discharge ports are basically parallel to the moving direction of the cold air, and the air outlet quantity is small.

[ summary of the invention ]

An object of the present invention is to provide a refrigeration apparatus which is advantageous in increasing the air output of the discharge port.

It is another object of the present invention to provide a refrigeration unit that facilitates the distribution of cool air within a storage compartment.

Accordingly, one aspect of the present invention pertains to a refrigeration apparatus. The refrigeration appliance includes a storage compartment; a container located in the storage compartment; and an air duct plate to form an air passage, the air duct plate having at least one discharge port to discharge cool air toward the container; characterized in that the air duct plate has a recess with a side wall extending in the longitudinal direction, the discharge opening being located on the side wall.

Another aspect of the present invention relates to a refrigerating apparatus including a storage compartment and an air passage at a top of the storage compartment, a lower wall of the air passage having a plurality of discharge ports to discharge cold air into the storage compartment; characterized in that the lower wall has a downwardly concave depression with side walls extending in the longitudinal direction, at least one of the plurality of discharge openings being located on the side walls.

When the cold air blows forwards, the cold air flow approximately parallel to the horizontal plane can enter the storage chamber from the outlet arranged in the way more easily, and the air exhausting amount of the cold air passing through the outlet is improved.

Other features which are considered as characteristic for the invention, individually or in combination with other features, are set forth in the following appended claims.

According to a preferred embodiment of the invention, the side wall is curved and the plurality of discharge openings are distributed in at least one curve over the side wall.

According to a preferred embodiment of the invention, the side wall is substantially perpendicular to the flow direction of the cooling air in the air channel.

According to a preferred embodiment of the present invention, the side wall is located at a central region of the storage compartment in the front-rear direction.

According to a preferred embodiment of the invention, the container is included in the storage compartment, and the discharge opening is located in the middle of the container or in the rear of the container.

According to a preferred embodiment of the present invention, the air passage further comprises at least one row of main discharge ports at a front end of the air passage.

According to a preferred embodiment of the invention, the discharge opening in the side wall is an auxiliary discharge opening.

According to a preferred embodiment of the invention, said recess has an inclined bottom surface, the high end of said bottom surface being connected to said lower wall and said side wall being connected to the lower end of said bottom surface.

According to a preferred embodiment of the present invention, an air return opening is included, the air return opening being adjacent to a bottom wall of the storage compartment.

According to a preferred embodiment of the invention, said lower wall is formed by an air duct plate adjacent to said top wall, said air passage being located between said air duct plate and said top wall.

According to a preferred embodiment of the invention, comprising a container located inside the storage compartment, the curved discharge opening is arranged in correspondence of the middle and/or the middle-rear part of the container

The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. Wherein,

fig. 1 is a partially assembled view of a refrigeration appliance according to a preferred embodiment of the invention, wherein the housing and the thermal insulation of the refrigeration appliance are not shown.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a perspective view of a duct board according to a preferred embodiment of the present invention.

Fig. 4 is a partial perspective view of the airway plate shown in fig. 3.

Fig. 5 is a schematic sectional view taken along line a-a in fig. 1.

Fig. 6 is a schematic sectional view taken along line B-B in fig. 1.

[ detailed description of the invention ]

Please refer to the drawings, and particularly to fig. 1. The refrigerating device 1 has a storage compartment 24 for storing food, the storage compartment 24 being defined by the inner container 21. The storage compartment 24 is surrounded by a heat insulating wall including the inner container 21, a casing (not shown) surrounding the inner container, and a heat insulating material (not shown) therebetween.

As shown in fig. 1 and 2, the storage compartment 24 is provided with a first storage chamber 2 and a second storage chamber 3 which are partitioned into parallel by a vertical partition wall 4. In the present embodiment, the first storage chamber 2 and the second storage chamber 3 are closed by the same door 50. It should be understood that in other embodiments, the first storage chamber 2 and the second storage chamber 3 may be closed by different doors.

The partition wall 4 is provided with a plurality of through holes 28 for fluid communication between the first and second storage chambers 2, 3, and the storage temperatures of the first storage chamber 2 and the second storage chamber 3 are substantially the same.

The first storage room 2 and the second storage room 3 are respectively provided with at least one container 31 for storing articles. A moisturizing unit 29 may be disposed in the second storage chamber 3 to be particularly suitable for preserving foods such as vegetables, fruits, etc. The moisturizing unit 29 is located at an upper portion of the container 31 to retain moisture of the items stored in the container 31. Thus, the storage compartment 24 is longitudinally divided into a "dry area" (first storage chamber) and a "wet area" (second storage chamber) which are arranged side by side on the left and right.

As shown in fig. 2, 5 and 6, the refrigerating apparatus 1 includes an evaporator 30 that can exchange heat with the storage compartment 24 (including the first storage chamber 2 and the second storage chamber 3). The evaporator 30 includes a refrigerant line and a heat transfer element in close contact with the refrigerant line. In this embodiment, the heat transfer element is plate-shaped and covers almost completely the rear wall 32 of the storage compartment 24. The evaporator 30 may be positioned on a side of the rear wall 32 of the storage compartment 24 facing the thermal insulation layer and may be in close contact with the rear wall 32 to cool the rear wall 32, thereby making the rear wall 32 a cooling surface. In another embodiment, the evaporator 30 may be located inside the rear wall 32 and within the storage compartment 24, with the evaporator 30 itself forming the cooling surface.

In order to reduce the temperature gradient in the first storage compartment 2 and the second storage compartment 3, the refrigerating apparatus 1 comprises an air circulation device for taking in air in the first and second storage compartments 2, 3, directly or indirectly cooling the air by the evaporator, and then feeding the air into the first and second storage compartments 2, 3. The air circulation device includes an air duct plate 10 to form an air passage 5 and a fan 6 located in the air passage 5 to drive the flow of air.

Referring to fig. 2 to 6, in this embodiment, the duct board 10 includes a top plate 13 adjacent to the top walls 12 of the first storage chamber 2 and the second storage chamber 3 of the storage compartment 24, but spaced apart from the top walls 12. The wind tunnel plate 10 further includes a back plate 33 bent from the rear end of the top plate 13 and extending downward. The back plate 33 is close to the rear wall 32 but at a distance from the rear wall 32. In this way, the air passage 5 extends from between the back plate 33 and the rear wall 32 to between the top plate 13 and the top wall 12. The edges of the top and

back panels

13, 33 may have partition walls 34 extending toward the top and

back walls

12, 32, respectively, to provide the above-described gap between the duct board 10 and the inner container 21.

The top plate 13 and the back plate 33 may be substantially vertical, so that the airway plate 10 is substantially L-shaped. In this embodiment, the back plate 33 covers a substantial portion of the rear wall 32. A gap is formed between the lower end of the back plate 33 and the bottom walls of the first and second storage compartments 2 and 3 to form a return air opening 41. The return air opening 41 is located near the bottom wall of the storage compartment 24. It should be understood that in other embodiments, it is also possible that the back plate 33 covers only a portion of the rear wall 32, for example a small portion or the upper half of the upper end of the rear wall 32.

The top panel 13 includes a substantially plate-like main body portion 35 exposed above the first storage chamber 2 and the second storage chamber 3, and an intermediate portion 36 located between the pair of main body portions 35.

The main body portion 35 extends substantially parallel to the top wall 12 in a horizontal direction. The top walls 12 of the first and second storage compartments 2, 3, respectively, and the corresponding main body 35 form a first branch 8 and a second branch 9 of the air passage 5 therebetween for supplying cold air to the respective storage compartments 2, 3. In the present embodiment, the first branch 8 and the second branch 9 are arranged symmetrically with respect to the longitudinal center plane of the top plate 13.

The intermediate portion 36 includes a downwardly projecting tab 11. The projection 11 is located rearward of the intermediate portion 36. The projection 11 has a space 38 whose upper end is open. The space 38 communicates with the first branch passage 8 and the second branch passage 9. The rear end of the space 38 is open to the back plate 33, and therefore, the space 38 and the portion of the air passage 5 between the back plate 33 and the rear wall 12 communicate. After being cooled by the cooling surface, the air may enter the space 38 through an opening of the space 38 located on the back plate 33.

The partition wall 4 is substantially plate-shaped, and the upper end of the partition wall 4 is connected to the lower side of the intermediate portion 36. The partition wall 4 is provided with a recessed space 7 to accommodate the protrusion 11. The recessed space 7 is recessed downward from the rear of the upper end of the partition wall 4. In the present embodiment, the partition wall 4 has a reduced height at the rear portion, and a notch-shaped concave space 7 is formed.

The fan 6 is accommodated in the rear end of the protrusion 11, and since the protrusion 11 protrudes into the recessed space 7, the fan 6 is also accommodated at least partially in the recessed space 7.

The fan 6 blows air forward, so when the fan 6 is operated, the cool air cooled by the evaporator 30 is sucked into the space 38 by the fan 6 and blown forward, and thereafter enters the first branch passage 8 and the second branch passage 9 from both sides of the space 38, respectively, to perform the corresponding storage compartments 2, 3 via the discharge port 14 at the front end of each main body portion 35.

Since the air passage 5 forms a negative pressure in the vicinity of the cooling surface, the air in the first storage chamber 2 and the second storage chamber 3 exits the first storage chamber 2 and the second storage chamber 3 through the return air opening 41 at the lower end of the back panel 33, enters the portion of the air passage 5 at the rear side of the back panel 33 to be cooled by heat exchange with the evaporator 30, is sucked into the space 38 again by the fan 6, is branched from the space 38 into the first branch passage 8 and the second branch passage 9, and is finally sent into the first storage chamber 2 and the second storage chamber 3, respectively, whereby the air is forcibly circulated.

In addition to the main discharge opening 14 at the front end of the air duct plate 10, the air circulation system may further include at least one set of auxiliary discharge openings 15 between the fan and the main discharge opening 14.

These auxiliary discharge ports 15 are located approximately in the middle region of the storage compartments 2, 3 in the front-rear direction. The cold air is blown toward the inside of the container 31 located in the first storage chamber 2 and the second storage chamber 3 through the auxiliary discharge port 15. The auxiliary discharge port 15 may be provided to face the middle and/or middle rear portion of the container 31.

The top plate 13 includes a downwardly concave depression 42. The pocket 42 has a side wall 43 extending in the longitudinal direction, and the auxiliary discharge port 15 is formed on the side wall 43. Thus, the auxiliary discharge port 15 forms an angle with the horizontal plane, and the side wall 43 is substantially perpendicular to the flow direction of the cool air in the present embodiment. Therefore, when the cold air is blown forward, the flow of the cold air substantially parallel to the horizontal plane is more easily introduced into the corresponding storage compartment 2, 3 from the auxiliary discharge port 15, which is advantageous in increasing the intake amount of the cold air in the middle region and/or the middle-rear region of the storage compartment 2, 3.

The pockets 42 have a sloped, smooth bottom surface 44. The upper end of the bottom surface 44 is connected to the top plate 11, and the lower end is connected to the side wall 43. Such a construction is particularly advantageous for manufacture when the airway plate 10 is formed by injection moulding in one piece.

The side wall 43 is curved so that the auxiliary discharge openings 15 arranged in a row on the side wall 43 are also curved so that the cool air can be divergently blown toward the container 31, facilitating the spreading of the cool air in the container 31.

In the above embodiments the air passage is located between the air duct panel and an inner wall (e.g. the top wall) of the storage compartment, however in other embodiments the air passage may be formed directly by the air duct panel, in which case the air duct panel may have a duct-like configuration, for example adjacent the top wall of the storage compartment, with both the upper and lower walls of the air passage being formed by the air duct panel.

In the above embodiment, the auxiliary discharge port 15 is used to assist/discharge the cool air to the local, however, the solution of providing the discharge port on the lower wall of the air passage on the side wall of the dimple on the lower wall should not be limited to the specific location and use of the discharge port.

Such a solution should also not be limited to the specific structure of the air circulation device. For example, in the above embodiment, the air circulation device supplies cold air to two storage compartments arranged side by side to forcibly circulate the air in the two storage compartments, respectively, but it is obvious that the inventive principle regarding the auxiliary discharge port 15 can be applied to other air circulation devices, for example, the conventional air circulation device described in the background of the invention, that is, the air circulation device is provided for only one storage compartment.

Claims

1. A refrigeration device (1) comprising:

storage compartments (2, 3);

a container (31) located in the storage compartment (2, 3):

-an air duct plate (10) to form an air channel (5), said air duct plate (10) having at least one discharge opening (15) to discharge cold air towards the container (31);

characterized in that the air duct plate (10) has a recess (42), the recess (42) having a side wall (43) extending in the longitudinal direction, the discharge opening (15) being located on the side wall (43).

2. A refrigeration device (1) comprising:

storage compartments (2, 3); and

an air passage (5) at the top of the storage compartments (2, 3), the lower wall of the air passage (5) having a plurality of discharge ports (15) to discharge cold air to the storage compartments (2, 3);

characterized in that the lower wall has a recess (42), the recess (42) having a side wall (43) extending in the longitudinal direction, at least one of the plurality of discharge openings (15) being located on the side wall (43).

3. A cold appliance (1) according to claim 1 or 2, wherein the side wall (43) is curved and the plurality of discharge openings (15) are distributed in at least one curve over the side wall (43).

4. A cold appliance (1) according to claim 1 or 2, wherein the side wall (43) is substantially perpendicular to the flow direction of the cold air in the air channel (5).

5. A refrigerating apparatus (1) as claimed in claim 1 or 2, characterized in that the side wall (43) is located in the middle region of the storage compartment (2, 3) in the front-rear direction.

6. A refrigerating apparatus (1) as claimed in claim 1, characterized in that the discharge opening (15) is arranged in correspondence of the middle of the container (31) or the rear of the container (31).

7. A cold appliance (1) according to claim 1 or 2, further comprising at least one row of main outlet openings (14) at the front end of the air channel (5).

8. A cold appliance (1) according to claim 6, wherein the discharge opening (15) in the side wall (43) is an auxiliary discharge opening.

9. A cold appliance (1) according to claim 1 or 2, wherein the cavity (42) has an inclined bottom surface, the upper end of the bottom surface being connected to the lower wall and the side wall (43) being connected to the lower end of the bottom surface.

10. A cold appliance (1) according to claim 1 or 2, comprising a return air opening (41), wherein the return air opening (41) is located close to the bottom wall of the storage compartment (2, 3).

11. A cold appliance (1) according to claim 2, wherein the lower wall is formed by a duct board (10) adjacent to a top wall (12) of the storage compartments (2, 3), the air passage (5) being located between the duct board (10) and the top wall (12).