CN110822791B

CN110822791B - Air supply device and refrigerator

Info

Publication number: CN110822791B
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: 2024-11-12
Anticipated expiration: 2038-08-07
Also published as: CN110822791A

Abstract

The present invention provides an air supply device and a refrigerator, the air supply device comprising: a fan part having an air inlet surface and an air outlet surface; at least two wind shielding parts, which are used to open and close the air outlet surface by rotating, thereby adjusting the air outlet volume; and a fixing part for fixing the wind shielding part, the fixing part comprising: a driving part for driving the wind shielding part; and a shaft part, which is connected to the driving part and causes the wind shielding part to rotate open in a direction away from the air outlet surface or rotate closed in a direction close to the air outlet surface. According to the air supply device of the present invention, the fan and the baffle that were originally separately arranged can be combined into one, and the air supply volume in each air duct can be adjusted.

Description

Air supply device and refrigerator

Technical Field

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

Background

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

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

Prior art literature

Patent literature

Patent document 1: CN106196840A

Disclosure of Invention

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

The air blower of the present invention is characterized by comprising: a fan part having an air inlet surface and an air outlet surface; at least 2 wind shielding parts which are used for opening and closing the wind outlet surface through rotation so as to adjust the wind outlet quantity; 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 that is connected to the driving portion and rotates the wind shielding portion in a direction away from the wind outlet surface or 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 air blowing amount output through the two air blocking portions can be appropriately adjusted by the rotation of the air blocking 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 this structure, the sealing of the air blocking portion can be realized excellently, and the occurrence of problems such as freezing of condensed water due to poor sealing property can be prevented.

In the blower 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 blower can be formed and installed easily.

In the blower 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 can drive the air blocking unit to rotate at a predetermined angle. According to this structure, the rotation angle of the air blocking portion can be accurately controlled, and the air supply amount can be accurately controlled.

In the blower according to the present invention, it is preferable that the sealing portion is further disposed at a boundary between the fixing portion and the air shielding portion. With this configuration, the sealing performance of the air blocking 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 side of the fixing portion facing the air outlet surface of the fan portion is provided with a cool air guide mechanism. According to this structure, the cool 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 comprises any one of the air blowing devices, wherein the at least 2 air shields of the air blowing device are respectively located in different air passages connected to different portions in the refrigerator, and a control unit for controlling the respective rotation angles of the at least 2 air shields according to the 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 air supply quantity of different parts in the refrigerator can be accurately controlled, so that the temperatures of different parts 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 air shielding portion. With this configuration, the occurrence of problems such as freezing of condensed water on the blower can be further prevented.

In addition, in the refrigerator of the present invention, it is preferable that the control part sets the wind shielding part 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 air blocking parts is located in an air duct connected to a freezing chamber of the refrigerator, and when the freezing chamber does not need to send air, the air blocking parts located in the air duct connected to the freezing chamber are closed. According to this structure, the refrigerating efficiency of the cooling system can be improved, and the effect of reducing the energy consumption can be achieved.

In the refrigerator according to the present invention, it is preferable that the refrigerator further includes an evaporator, and the air blowing device is provided downstream of the evaporator in the cool air flow path. This can increase 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 originally arranged separately can be combined into a whole, and the air supply quantity in each air channel can be regulated.

Drawings

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

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

Fig. 3 is a schematic view showing the blower device according to the first embodiment mounted in a refrigerator.

Fig. 4 is an exploded perspective view showing the blower device according to the first embodiment mounted to a refrigerator.

Fig. 5 is a sectional view showing the blower device according to the first embodiment mounted to a refrigerator.

Fig. 6 is a perspective view showing a blower according to a first modification.

Fig. 7 is a perspective view showing a blower device according to a second modification.

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

Fig. 9 is a perspective view showing an air blower according to a second embodiment.

Detailed Description

The invention will now be described in more detail with reference to the drawings and examples.

Preferred embodiments of the refrigerator according to the present invention are described in detail below with reference to the accompanying drawings. In the description of the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description thereof is omitted.

< First embodiment >

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

As shown in fig. 1 and 2, a blower device 100 according to a first embodiment includes: a fan unit 10 having an air inlet surface 11 and an air outlet surface 12; at least 2 wind shielding parts 20, 30 for opening and closing the wind outlet face 12 by rotation, thereby adjusting the wind outlet quantity; and a fixing portion 50 for fixing the wind shielding portions 20, 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 rotates the wind shielding portions 20, 30 to open in a direction away from the wind outlet face 12 or to close in a direction toward the wind outlet face 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 for the fan 13. The housing 14 is square, for example, and a projection 15 for engaging with a groove of a fixing portion 50 described later may be provided on the housing 14.

The fixing portion 50 is constituted by 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 is capable of driving the wind shielding units 20 and 30 to rotate at a predetermined angle. The mounting portion 53 has a 匚 -shaped cross-sectional shape in plan view, for example, and is bridged over the case 14 of the fan portion 10, and is provided such that a 匚 -shaped central portion 53a faces the air outlet surface 12 of the fan portion 10, and both end portions 53b,53c of the 匚 -shape face the side surfaces of the fan portion 10. One side of the mounting portion 53 is connected to the driving portion 51, and may be connected by a conventional manner such as screw fixation. The shaft portion 52 extending from the driving portion 51 is connected to shaft holes 21, 31 of the wind shielding portions 20, 30 described later so as to protrude from one end 53b of the mounting portion 53. For example, the cross section of the shaft portion 52 may be a flat shape, and the cross-sectional shape of the shaft holes 21, 31 corresponds thereto. Thereby, the rotation knot of the shaft portion 52 can drive the rotation of the wind shielding portions 20, 30.

The wind shielding portions 20, 30 have the shaft holes 21, 31, the cover portions 22, 32, and the insertion shafts 23, 33. The shaft holes 21, 31 and the cross section of the shaft portion 52 have corresponding cross-sectional shapes. The cover portions 22, 32 have a shape that can completely seal the housing 14 of the fan portion 10 when closed. The cover portions 22, 32 have, for example, arcuate curved surfaces. The insertion shafts 23, 33 are inserted into holes provided at positions corresponding to the mounting portions 53. As a result, the wind shielding portions 20, 30 can be rotated and opened in a direction away from the air outlet surface 12 or rotated and closed in a direction toward the air outlet surface 12 along the shaft portion 52.

The blower device 100 further includes a sealing portion 60 disposed around the air outlet surface 12 of the fan portion 10, for sealing the fan portion 10 and the air blocking portions 20 and 30 located at the initial positions. Further, it is preferable that the sealing portion 60 is also disposed at the boundary of the fixing portion 50 and the wind shielding portions 20, 30, that is, the sealing portion 60 may be disposed on both sides of the central portion 53a of the mounting portion 53 having a 匚 -shaped cross-sectional shape, or on portions of both end portions 53b,53c of the mounting portion 53 that meet the wind shielding portions 20, 30 at the initial position. Of course, the sealing portion 60 may be disposed at a position on the wind shielding portions 20, 30 corresponding to the above-described portion. The material of the sealing portion 60 may be any material capable of providing a waterproof sealing effect, and may be a commercially available waterproof sealing material. Since the air blocking portions 20 and 30 are of a flip structure with respect to the housing 14 of the fan portion 10, an extremely 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 performance can be prevented.

Fig. 3 is a schematic view showing the mounting of the blower device according to the first embodiment to the refrigerator 1. Fig. 4 is an exploded perspective view showing the blower device according to the first embodiment mounted to the refrigerator 1. Fig. 5 is a sectional view showing the blower device according to the first embodiment mounted to the refrigerator 1.

As shown in fig. 3 to 5, the blower device 100 of the first embodiment is provided on the downstream side of the evaporator 400 in the cool air flow path. Here, the cool air flow path is a flow path from the evaporator 400 to each compartment through the duct, and returns the cool air, which has exchanged heat with the evaporator 400, from the return air inlet of each compartment to the evaporator 400 through the duct. The wind shielding part 20 is located in a refrigerating chamber air duct 201 communicated to the refrigerating chamber 200 of the refrigerator 1. The air shielding part 30 is located in a freezing chamber air duct 301 connected to the freezing chamber 300 of the refrigerator 1. That is, cool air is delivered to the refrigerator compartment 200 as the wind shielding part 20 is opened, and cool air is delivered to the freezer compartment 300 as the wind shielding part 30 is opened. A control unit (not shown) of the refrigerator 1 controls the temperatures of the respective compartments in the refrigerator 1 to control the respective rotation angles of the wind shielding portions 20, 30, thereby enabling precise control of the temperatures of the respective compartments.

As shown in fig. 4, the freezing compartment air duct 301 is formed by assembling a first freezing air duct cover 310 and a second freezing air duct cover 320. The first freezing duct cover 310 forms an inner wall of the freezing chamber 300, on which a plurality of air outlets for introducing cool air into the freezing chamber 300 are provided. 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 is formed with an opening for providing the air supply device 100. After the blower device 100 is fitted into the opening of the second cooling duct cover 320, the amount of cool air to be supplied to the freezing chamber 300 can be controlled by opening and closing the air blocking portion 30, and the amount of cool air to be supplied upward (the refrigerating chamber 200) can be controlled by opening and closing the air blocking portion 20. Thus, the cool air discharged from the evaporator is sucked by the blower 100 and then is sent to the respective compartments via the air blocking portions 20, 30. In the present embodiment, the blower device 100 is provided above the evaporator 400, but the present invention is not limited thereto, and the blower device may be provided downstream of the start end of the cooling capacity distribution and upstream of the air inlet opening into each compartment. Accordingly, the degree of freedom in the installation position of the blower 100 is high, and a designer can flexibly install the blower 100 according to different models.

The area ratio of the air blocking portions 20, 30 is determined by the ratio of the cooling capacity required for the controlled compartments. The area ratio of the wind shielding portions 20, 30 may 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 air blocking portions 20 and 30. By heating the blower 100 with the heater, the occurrence of problems such as freezing of condensed water on the blower can be further prevented. In order to allow condensed water to quickly flow out of the blower 100, the blower 100 is preferably inclined. Thereby, the condensed water can flow out along the inclined surface. With this, the driving unit 51 may be provided in an inclined manner.

Further, during defrosting of the refrigerator 1, the control part sets the wind shielding parts 20, 30 to be completely closed. According to such a structure, the defrosting time of the refrigerator 1 can be shortened, and the energy consumption of the refrigerator 1 can be saved.

In addition, when the freezing chamber 300 of the refrigerator 1 does not need to supply air, the air blocking portion 30 located in the air duct communicated to the freezing chamber 300 is closed. According to this structure, the refrigerating efficiency of the cooling system can be improved, and the effect of reducing the energy consumption can be achieved.

When the compressor of the refrigerator 1 is stopped, the air blocking portion 20 may be opened and the air blocking portion 30 may be closed. Accordingly, when the compressor is turned off, the residual cooling capacity of the evaporator 400 can be fully utilized to cool the compartment controlled by the air blocking portion 20, and the humidity of the compartment can be improved to some extent.

< Modification of the first embodiment >

Fig. 6 is a perspective view showing a blower 101 according to a first modification. The blower 101 of the first modification differs from the blower 100 of the first embodiment in that the mounting portion 53A is integrally formed with the housing 14 of the fan unit 10. Thus, the number of assembling steps can be reduced, and the blower can be easily formed and mounted.

Fig. 7 is a perspective view showing a blower 102 according to a second modification. The blower 102 according to the second modification differs from the blower 100 according to the first embodiment in that a stiffener is provided at a 匚 -shaped central portion 53Ba of the mounting portion 53B. This can further improve the strength of the mounting portion 53B, and prevent breakage or damage thereof.

Fig. 8 is a perspective view showing a blower 103 according to a third modification. The blower 103 according to the third modification differs from the blower 100 according to 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 unit 10. Specifically, the shape of an arc is formed from the center toward both sides. According to this structure, the cool air can be more effectively flowed to the opening formed in the wind shielding portion.

< Second embodiment >

Fig. 9 is a perspective view showing a blower device 100A according to a second embodiment. The blower 100A of the second embodiment differs from the blower 100 of the first embodiment in that the blower includes the air shielding portions 40 in addition to the air 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 blower 100A of the second embodiment, the air blocking portions 20, 30, 40 can respectively deliver cool air to different compartments, and can precisely control the air quantity by the rotation angle thereof. Further, a sealing portion may be provided between the wind shielding portions 20, 40.

The blower device 100A according to the second embodiment can achieve the same effects as the blower device 100 according to the first embodiment, and can control the air volume of more compartments. In addition, when the air supply device 100A of the second embodiment is applied to a refrigerator, the air duct is only required to be adaptively modified, and a detailed description thereof is omitted.

While the invention has been described in detail in connection with the drawings and embodiments, it should be understood that the foregoing description is not intended to limit the invention in any way. Modifications and variations of the invention may be made as desired by those skilled in the art without departing from the true spirit and scope of the invention, and such modifications and variations fall within the scope of the invention.

Claims

1. An air supply device is characterized in that,

The device is provided with:

A fan part having an air inlet surface and an air outlet surface;

at least 2 wind shielding parts which are positioned at one side of the axial direction of the fan part and are used for opening and closing the wind outlet surface through rotation, so as to adjust the wind outlet quantity; and

A fixing part for fixing the wind shielding part,

The fixing part comprises:

a driving part for driving the wind shielding part;

A shaft portion that is connected to the driving portion and rotates the wind shielding portion in a direction away from the wind outlet surface or in a direction approaching the wind outlet surface; and

And the mounting part is used for mounting the fan part, is connected with the driving part and divides the air outlet surface into parts corresponding to at least 2 air shielding parts.

2. The air supply device as set forth in claim 1, wherein,

The fan also 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. A blower device as set forth in claim 1 or 2, wherein,

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

4. A blower device as set forth in claim 1 or 2, wherein,

The driving part is a stepping motor, which is configured on the side surface of the fan part and can drive the wind shielding part to rotate at a prescribed angle.

5. The air supply device as set forth in claim 2, wherein,

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

6. A blower device as set forth in claim 1 or 2, wherein,

And one side of the fixing part facing the air outlet surface of the fan part is provided with a cold air guide mechanism.

7. A refrigerator is characterized in that,

A blower and a control unit according to any one of claims 1 to 6,

The at least 2 air shields of the air supply device are respectively positioned in different air channels communicated with 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 as claimed in claim 7, wherein,

And a heater formed above the air supply device or on the air shielding part.

9. The refrigerator as claimed in claim 7 or 8, wherein,

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

10. The refrigerator as claimed in claim 7 or 8, wherein,

1 Of the at least 2 air blocking parts is located in an air duct communicated to a freezing chamber of the refrigerator,

When the freezing chamber does not need to send air, the air shielding part in the air duct communicated with the freezing chamber is closed.

11. The refrigerator as claimed in claim 7 or 8, wherein,

The refrigerator is provided with an evaporator, and the air supply device is arranged at the downstream side of a cool air flow path of the evaporator.