CN110822791A

CN110822791A - Air supply device and refrigerator

Info

Publication number: CN110822791A
Application number: CN201810890952.3A
Authority: CN
Inventors: 苗松涛; 王国靖; 吴超; 韩晓蕾
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2020-02-21

Abstract

The invention provides an air supply device and a refrigerator, the air supply device is provided with: the fan part is provided with an air inlet surface and an air outlet surface; at least 2 wind shielding parts for opening and closing the wind outlet surface through rotation so as to adjust the wind outlet amount; and a fixing portion for fixing the wind shielding portion, the fixing portion including: a driving part for driving the wind shielding part; and a shaft portion connected to the driving portion and configured to rotate the wind shielding portion to open in a direction away from the wind outlet surface or to close in a direction close to the wind outlet surface. According to the air supply device of the invention, the fan and the baffle which are separately arranged originally can be combined into a whole, and the air supply quantity in each air channel can be adjusted.

Description

Air supply device and refrigerator

Technical Field

The present invention relates to an air supply device and a refrigerator, and more particularly, to an air supply device and a refrigerator capable of adjusting an amount of air supplied to each duct.

Background

In the existing refrigerator, a structure that a fan and a baffle are respectively arranged is generally adopted. For example, a cold room or a freezer compartment damper is separately provided for adjusting the amount of air supplied to each compartment. However, the separate provision of the baffle requires a large space, which affects the storage space inside the refrigerator.

Patent document 1 discloses a blower device in which a fan and a baffle are integrated. A circular rotary baffle is arranged on the air outlet side of the fan, and the air outlet area can be adjusted by rotating the rotary baffle. However, in such a configuration, the applicable air outlet area is small, and the pressure loss is large, and the sealing performance is poor because the rotating member and the housing are in clearance fit in the rotating structure.

Documents of the prior art

Patent document

Patent document 1: CN106196840A

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a blower device and a refrigerator in which a fan and a baffle are integrally combined, the air blowing amount in each air duct is large, and the air blowing amount in each air duct can be adjusted in a wide range.

The air blowing device of the present invention is characterized by comprising: the fan part is provided with an air inlet surface and an air outlet surface; at least 2 wind shielding parts for opening and closing the wind outlet surface through rotation so as to adjust the wind outlet amount; and a fixing portion for fixing the wind shielding portion, the fixing portion including: a driving part for driving the wind shielding part; and a shaft portion connected to the driving portion and configured to rotate the wind shielding portion to open in a direction away from the wind outlet surface or to close in a direction close to the wind outlet surface.

According to the air blowing device of the present invention, the fan and the baffle are integrated, and the amount of air blown out through the two wind shielding portions can be appropriately adjusted by the rotation of the wind shielding portions.

In the air blowing device according to the present invention, it is preferable that the air blowing device further includes a sealing portion disposed around the air outlet surface of the fan portion, for sealing the fan portion and the air shielding portion located at the initial position. According to such a configuration, the sealing of the wind shielding portion can be excellently achieved, and the occurrence of problems such as freezing of condensed water due to poor sealing performance can be prevented.

In the blower device according to the present invention, it is preferable that the fan unit is engaged with or integrally formed with the fixing unit. According to such a structure, the air blowing device can be easily formed and mounted.

In the blower device according to the present invention, it is preferable that the driving unit is a stepping motor which is disposed on a side surface of the fan unit and which can drive the wind shielding unit to rotate at a predetermined angle. According to such a configuration, the rotation angle of the wind shielding portion can be accurately controlled, and the amount of air blown can be accurately controlled.

In the air blowing device according to the present invention, it is preferable that the sealing portion is further disposed at a boundary between the fixing portion and the wind shielding portion. According to such a configuration, the sealing performance of the wind shielding portion can be further improved, and the occurrence of problems such as freezing of condensed water due to poor sealing performance can be prevented.

In the air blowing device according to the present invention, it is preferable that a cool air guide mechanism is provided on a side of the fixing portion facing the air outlet surface of the fan portion. With this configuration, the cold air can be more effectively flowed to the opening formed in the wind shielding portion.

Another object of the present invention is to provide the refrigerator, wherein the refrigerator further includes any one of the above-described air blowing devices, wherein the at least 2 wind shielding portions of the air blowing device are respectively located in different air paths communicating with different portions in the refrigerator, and wherein the control portion controls the respective rotation angles of the at least 2 wind shielding portions in accordance with temperatures of the different portions in the refrigerator.

According to the refrigerator, under the condition that the space for arranging the baffle is not additionally increased, the accurate control of the air supply quantity of different positions in the refrigerator can be realized, and therefore the temperature of different positions can be accurately controlled.

In the refrigerator according to the present invention, it is preferable that the refrigerator further includes a heater formed above the blower or on the wind shielding portion. With this configuration, it is possible to further prevent the occurrence of problems such as freezing of the condensed water in the blower.

In addition, in the refrigerator of the present invention, preferably, the control portion sets the wind shielding portion to be completely closed during defrosting of the refrigerator. According to the structure, the defrosting time of the refrigerator can be shortened, and the energy consumption of the refrigerator can be saved.

In addition, in the refrigerator of the present invention, preferably, 1 of the at least 2 wind shielding portions is located in a wind passage communicated to a freezing chamber of the refrigerator, and when the freezing chamber does not require wind supply, the wind shielding portion located in the wind passage communicated to the freezing chamber is closed. According to the structure, the refrigeration efficiency of the cooling system can be improved, and the effect of reducing energy consumption is achieved.

In the refrigerator according to the present invention, it is preferable that the refrigerator includes an evaporator, and the air blowing device is disposed on a downstream side of a cold air flow path of the evaporator. This increases the degree of freedom in the installation position of the blower.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the air supply device and the refrigerator, the fan and the baffle which are separately arranged originally can be combined into a whole, and the air supply quantity in each air channel can be adjusted.

Drawings

Fig. 1 is a perspective view showing an air blowing device according to a first embodiment.

Fig. 2 is an exploded perspective view showing the blower device according to the first embodiment.

Fig. 3 is a schematic view showing that the blower device of the first embodiment is mounted on a refrigerator.

Fig. 4 is an exploded perspective view showing that the blower device of the first embodiment is mounted on a refrigerator.

Fig. 5 is a sectional view showing that the blower device of the first embodiment is mounted in a refrigerator.

Fig. 6 is a perspective view showing an air blowing device according to a first modification.

Fig. 7 is a perspective view showing an air blowing device according to a second modification.

Fig. 8 is a perspective view showing a blower device according to a third modification.

Fig. 9 is a perspective view showing an air blowing device of a second embodiment.

Detailed Description

The invention is explained in more detail below with reference to the figures and examples.

Hereinafter, preferred embodiments of a refrigerator according to the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description is omitted.

< first embodiment >

Fig. 1 is a perspective view showing an air blowing device according to a first embodiment. Fig. 2 is an exploded perspective view showing the blower device according to the first embodiment.

As shown in fig. 1 and 2, the blower device 100 according to the first embodiment includes: a fan part 10 having an air inlet surface 11 and an air outlet surface 12; at least 2

wind shielding parts

20, 30 for adjusting the wind output by rotating to open and close the wind outlet surface 12; and a fixing portion 50 for fixing the

wind shielding portions

20 and 30, the fixing portion 50 including: a driving section 51 for driving the

wind shielding sections

20, 30; and a shaft portion 52 that is connected to the driving portion 51 and that rotates the

wind shielding portions

20 and 30 to open in a direction away from the air outlet surface 12 or to close in a direction toward the air outlet surface 12.

More specifically, the fan unit 10 includes a fan 13 and a housing 14 in which the fan is mounted. The fan 13 may be a centrifugal fan or an axial fan. As will be described later, since the

wind shielding portions

20 and 30 are located on one side in the axial direction of the fan 13, an axial flow fan is preferably used as the fan 13. The housing 14 may be square, for example, and the housing 14 may be provided with a projection 15 for engaging with a catch groove on a fixing portion 50 described later.

The fixing portion 50 is composed of a driving portion 51 and an attaching portion 53. The driving unit 51 is, for example, a stepping motor, and is disposed on a side surface of the fan unit 10, and can drive the

wind shielding units

20 and 30 to rotate at a predetermined angle. The mounting portion 53 has, for example, an Contraband-shaped cross-sectional shape in plan view, and is provided so as to straddle the casing 14 of the fan portion 10, with a Contraband-shaped central portion 53a facing the air outlet surface 12 of the fan portion 10, and two

end portions

53b, 53c of Contraband-shaped shape facing the side surfaces of the fan portion 10. One side of the mounting portion 53 is connected to the driving portion 51, for example, by a conventional method such as screwing. The shaft 52 extending from the driving portion 51 is configured to be connected to the shaft holes 21, 31 of the

wind shielding portions

20, 30 described later, in such a manner that a portion 53b extending to one side of the mounting portion 53 is formed. For example, the cross-section of the shaft 52 may be flat, and the cross-sectional shapes of the shaft holes 21, 31 correspond thereto. Thereby, the rotation of the shaft 52 can rotate the

wind shielding portions

20 and 30.

The

wind shielding portions

20, 30 have the above-described shaft holes 21, 31,

cover portions

22, 32, and

insertion shafts

23, 33. The cross-sections of the shaft holes 21, 31 and the shaft 52 have corresponding cross-sectional shapes. The

cover portions

22, 32 have a shape that can completely seal the casing 14 of the fan portion 10 when closed. The

cover portions

22, 32 have, for example, arc-shaped curved surfaces. The

insertion shafts

23, 33 are inserted into holes provided at corresponding positions of the mounting portion 53. Accordingly, the

wind shielding portions

20 and 30 can be rotated and opened in a direction away from the wind outlet surface 12 or rotated and closed in a direction toward the wind outlet surface 12 along the shaft 52.

The air blowing device 100 includes a sealing portion 60 disposed around the air outlet surface 12 of the fan portion 10 to seal the fan portion 10 and the

wind shielding portions

20 and 30 located at the initial positions. Further, it is preferable that the sealing portion 60 is also disposed at the boundary between the fixing portion 50 and the

wind shielding portions

20, 30, that is, the sealing portion 60 may be disposed on both side edges of the central portion 53a of the mounting portion 53 having the Contraband-shaped cross-sectional shape, or on the portions of both

end portions

53b, 53c of the mounting portion 53 which are in contact with the

wind shielding portions

20, 30 at the initial position. Of course, the sealing portion 60 may be disposed at a position corresponding to the above-described portion on the

wind shielding portions

20, 30. The material of the sealing portion 60 may be any material as long as it can exert a waterproof sealing effect, and may be formed of a commercially available waterproof sealing material. Since the

wind shielding portions

20 and 30 have a flip structure with respect to the housing 14 of the fan portion 10, a very excellent sealing effect can be obtained by providing the sealing portion 60, and the occurrence of problems such as freezing of condensed water due to poor sealing properties can be prevented.

Fig. 3 is a schematic view showing the air blowing device of the first embodiment mounted on the refrigerator 1. Fig. 4 is an exploded perspective view showing the air blowing device of the first embodiment mounted on the refrigerator 1. Fig. 5 is a sectional view showing the air blowing device of the first embodiment attached to the refrigerator 1.

As shown in fig. 3 to 5, the blower device 100 according to the first embodiment is provided on the downstream side of the evaporator 400 in the cold air flow path. Here, the cold air flow path is a flow path in which cold air having exchanged heat with the evaporator 400 is sent to each compartment through the air duct starting from the evaporator 400, and then returned to the evaporator 400 from the return air inlet of each compartment through the air duct. The wind shielding part 20 is located in a refrigerating chamber wind duct 201 communicated to the refrigerating chamber 200 of the refrigerator 1. The wind shielding portion 30 is located in a freezing chamber wind duct 301 communicated to a freezing chamber 300 of the refrigerator 1. That is, as the wind shielding part 20 is opened, the cold air is delivered to the refrigerating compartment 200, and as the wind shielding part 30 is opened, the cold air is delivered to the freezing compartment 300. The control unit (not shown) of the refrigerator 1 controls the temperatures of the different compartments in the refrigerator 1 to control the respective rotation angles of the

wind shielding portions

20 and 30, thereby precisely controlling the temperatures of the compartments.

As shown in fig. 4, the freezing compartment duct 301 is formed by assembling a first freezing duct cover 310 and a second freezing duct cover 320. The first freezing duct cover 310 forms an inner wall of the freezing chamber 300, and is provided with a plurality of air outlets for introducing cool air into the freezing chamber 300. The second freezing duct cover 320 is provided in such a manner that the evaporator 400 is installed between it and the refrigerator case. The second freezing duct cover 320 has an opening for installing the air supply device 100. After air blower 100 is fitted into the opening of second freezing duct cover 320, the amount of cold air to be supplied to freezing chamber 300 can be controlled by opening and closing of air shielding unit 30, and the amount of cold air to be supplied to the upper side (refrigerating chamber 200) can be controlled by opening and closing of air shielding unit 20. Thus, the cold air discharged from the evaporator is sucked by the blower 100 and then sent to the compartments through the

wind shielding portions

20 and 30. In the present embodiment, the blower device 100 is provided above the evaporator 400, but is not limited thereto, and may be provided on the downstream side of the start end of the refrigeration capacity distribution and on the upstream side of the air inlet opening that flows into each compartment. Accordingly, the degree of freedom of the installation position of air blower 100 is high, and a designer can flexibly install air blower 100 according to different models.

Furthermore, the area ratio of the wind shields 20, 30 is determined by the ratio of the cooling capacity required by the controlled compartment. The area ratio of the

wind shielding parts

20, 30 can be, for example, 1:2 to 1: 3.

The refrigerator 1 may further include a heater (not shown) formed above the blower device 100 or on the

wind shielding portions

20 and 30. By heating the air blowing device 100 by the heater, it is possible to further prevent the occurrence of problems such as freezing of condensed water on the air blowing device. Further, in order to allow condensed water to quickly flow out of air blower 100, air blower 100 is preferably disposed to be inclined. Therefore, the condensed water can flow out along the inclined surface. Accordingly, the driving unit 50 may be disposed to be inclined.

Further, the control part sets the

wind shielding parts

20, 30 to be completely closed during defrosting of the refrigerator 1. With such a configuration, the defrosting time of the refrigerator 1 can be shortened, and the energy consumption of the refrigerator 1 can be reduced.

Further, when the freezing chamber 300 of the refrigerator 1 does not require air blowing, the wind blocking portion 30 located in the wind passage communicating to the freezing chamber 300 is closed. According to the structure, the refrigeration efficiency of the cooling system can be improved, and the effect of reducing energy consumption is achieved.

When the compressor of the refrigerator 1 stops operating, the wind shielding portion 20 may be opened alone, and the wind shielding portion 30 may be closed alone. Thus, when the compressor is turned off, the residual cold of the evaporator 400 can be sufficiently used to cool the compartment controlled by the wind shielding portion 20, and the humidity of the compartment can be increased to some extent.

< modification of the first embodiment >

Fig. 6 is a perspective view showing the air blowing device 101 of the first modification. The air blower 101 of the first modification differs from the air blower 100 of the first embodiment in that the mounting portion 53A is integrally formed with the housing 14 of the fan unit 10. Therefore, the assembling process can be reduced, and the air supply device can be conveniently formed and installed.

Fig. 7 is a perspective view showing an air blowing device 102 according to a second modification. The air blower 102 according to the second modification differs from the air blower 100 according to the first embodiment in that a reinforcing rib is provided in the Contraband-shaped central portion 53Ba of the mounting portion 53B. This can further increase the strength of the mounting portion 53B, thereby preventing breakage or damage thereof.

Fig. 8 is a perspective view showing an air blowing device 103 according to a third modification. The air blowing device 103 of the third modification differs from the air blowing device 100 of the first embodiment in that a cold air guide mechanism is provided on the side of the mounting portion 53C facing the air outlet surface 12 of the fan portion 10. Specifically, the shape of the arc is from the center to both sides. With this configuration, the cold air can be more effectively flowed to the opening formed in the wind shielding portion.

< second embodiment >

Fig. 9 is a perspective view showing an air blowing device 100A according to a second embodiment. The air blowing device 100A of the second embodiment differs from the air blowing device 100 of the first embodiment in that it includes a wind shielding portion 40 in addition to the

wind shielding portions

20, 30; the fixing portion 50 includes a driving portion 51 and a driving portion 51a for driving the wind shielding portion 40.

In the air blowing device 100A of the second embodiment, the

wind shielding portions

20, 30, 40 can deliver the cold air to different compartments, respectively, and can precisely control the amount of air blown by the controller through the rotation angle thereof. Further, a sealing portion may be provided between the

wind shielding portions

20, 40.

The air blowing device 100A of the second embodiment can obtain the same effects as those of the air blowing device 100 of the first embodiment, and can control the air blowing amount of more compartments. In addition, when the blower 100A of the second embodiment is applied to a refrigerator, only the air duct needs to be modified adaptively, and will not be described herein again.

While the invention has been specifically described above in connection with the drawings and examples, it will be understood that the above description is not intended to limit the invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the true spirit and scope of the invention, and such modifications and variations are within the scope of the invention.

Claims

1. An air supply device is characterized in that,

the disclosed device is provided with:

the fan part is provided with an air inlet surface and an air outlet surface;

at least 2 wind shielding parts for opening and closing the wind outlet surface through rotation so as to adjust the wind outlet amount; and

a fixing portion for fixing the wind shielding portion,

the fixing portion includes:

a driving part for driving the wind shielding part; and

and a shaft portion connected to the driving portion and configured to rotate the wind shielding portion to open in a direction away from the wind outlet surface or to close in a direction close to the wind outlet surface.

2. The air supply arrangement as recited in claim 1,

the air conditioner further comprises a sealing part which is arranged around the air outlet surface of the fan part and is used for sealing the fan part and the air shielding part positioned at the initial position.

3. The air supply arrangement as recited in claim 1 or 2,

the fan part is clamped with or integrally formed with the fixing part.

4. The air supply arrangement as recited in claim 1 or 2,

the driving unit is a stepping motor, which is disposed on a side surface of the fan unit and can drive the wind shielding unit to rotate at a predetermined angle.

5. The air supply arrangement as recited in claim 2,

the sealing part is also arranged at the boundary of the fixing part and the wind shielding part.

6. The air supply arrangement as recited in claim 1 or 2,

and a cold air flow guide mechanism is arranged on one side of the fixing part facing the air outlet surface of the fan part.

7. A refrigerator is characterized in that a refrigerator body is provided with a refrigerator door,

comprising the blower device according to any one of claims 1 to 6 and a control unit,

the at least 2 wind shielding parts of the air supply device are respectively positioned in different air ducts communicated to different parts in the refrigerator,

the control part controls the respective rotation angles of the at least 2 wind shielding parts according to the temperatures of different parts in the refrigerator.

8. The refrigerator of claim 7,

the air blower further comprises a heater formed above the air blower or on the wind shielding part.

9. The refrigerator according to claim 7 or 8,

the control part sets the wind shielding part to be completely closed during defrosting of the refrigerator.

10. The refrigerator according to claim 7 or 8,

1 of the at least 2 wind shielding parts is positioned in a wind channel communicated to a freezing chamber of the refrigerator,

when the freezing chamber does not need to supply air, the air shielding part in the air duct communicated to the freezing chamber is closed.

11. The refrigerator according to claim 7 or 8,

the refrigerator includes an evaporator, and the air blowing device is disposed on a downstream side of a cold air flow path of the evaporator.