CN113167501A

CN113167501A - Air supply device

Info

Publication number: CN113167501A
Application number: CN201980079689.2A
Authority: CN
Inventors: 高桥雅也
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2018-12-12
Filing date: 2019-12-05
Publication date: 2021-07-23
Anticipated expiration: 2039-12-05
Also published as: WO2020121938A1; CN113167501B; JPWO2020121938A1

Abstract

An air blowing device is provided which can properly seal air blowing and prevent a sealing member from being peeled off. In an indoor unit (1) of the present invention, a sealing member (17) is provided between an airflow panel (11) that opens and closes a blow-out port (15) and the blow-out port (15), the sealing member (17) seals the gap (A) when the airflow panel (11) is opened, and the thickness of the sealing member (17) is equal to or greater than the thickness of the airflow panel (11).

Description

Air supply device

Technical Field

The present invention relates to an air supply device for an indoor unit of an air conditioner.

Background

Generally, an indoor unit of an air conditioner includes a cross flow fan. In order to effectively blow air by the cross flow fan, the length of the blowing path needs to be as long as possible. However, it is not preferable to make the length of the air blowing path long because the indoor unit itself becomes large. Therefore, in a general indoor unit, in order to secure the air flow path, an air direction adjustment plate (airflow panel) that can be opened and closed is provided at the air outlet of the indoor unit main body, and the airflow panel is opened during air blowing so that the length of the air flow path is increased by an amount corresponding to the length of the airflow panel in the air blowing direction.

However, when the airflow panel is provided, a gap is provided between the airflow panel and the air outlet so that the airflow panel does not interfere with the air outlet when the airflow panel is opened and closed. However, the gap has no problem in a state where the airflow panel is closed (when blowing is stopped), but has a problem in a state where the airflow panel is opened (when blowing is stopped). That is, when air is blown, air leaks from a gap formed between the airflow and the outlet.

Therefore, a sealing material is generally provided to fill a gap formed between the airflow panel and the air outlet, and air leakage from the gap during air blowing is prevented.

For example, patent document 1 discloses an air conditioner.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2012-154559.

Disclosure of Invention

Technical problem to be solved by the invention

However, in the case where the sealing member is disposed on a concentric circle with respect to the rotation locus as in the air conditioner of patent document 1, if the wind direction adjustment plate (airflow panel) is warped, a gap is generated or disturbance occurs at the time of rotation. In addition, in order to prevent the occurrence of a gap even when the airflow direction adjustment plate is warped, it is conceivable to strongly contact the airflow direction adjustment plate with the seal member.

An object of one aspect of the present invention is to provide an air blower that can properly seal between an air direction adjustment plate and an air outlet during air blowing, and that does not cause peeling of a seal member due to a rotational operation of the air direction adjustment plate.

Means for solving the problems

In order to solve the above problem, an air blowing device according to an aspect of the present invention includes an air direction adjustment plate that opens and closes an air outlet through which air is blown, and forms a part of an air passage through which air is blown from the air outlet when the air direction adjustment plate is opened, and the air blowing device includes: the air direction adjustment plate is pivotally supported so as not to interfere with a member forming the air outlet when opened and closed and so as to be rotatable with a gap formed between the air direction adjustment plate and the air outlet.

Effects of the invention

According to an aspect of the present invention, the following effects are obtained; the sealing between the wind direction adjustment plate and the air outlet can be properly performed during air blowing, and the peeling of the sealing member caused by the rotation of the wind direction adjustment plate is avoided.

Drawings

Fig. 1 is a perspective view showing an appearance of an indoor unit according to a first embodiment of the present invention in a front direction.

Fig. 2 is a cross-sectional view of the indoor unit shown in fig. 1, as viewed along the AA line.

Fig. 3 is an enlarged view of a main portion of the indoor unit shown in fig. 2.

Fig. 4 is a sectional view showing a state where an airflow panel is opened in the indoor unit shown in fig. 2.

Fig. 5 is an enlarged view of a main portion of the indoor unit shown in fig. 4.

Fig. 6 is a view showing a modification of the sealing mechanism in the indoor unit according to the present invention.

Detailed Description

[ first embodiment ]

The first embodiment of the present invention will be described in detail below. In the present embodiment, the air blowing device according to the present invention is described by way of example as being applied to an indoor unit of an air conditioner. However, the blower device according to an aspect of the present invention may be a ceiling type air conditioner, a floor type air conditioner, or an indoor exclusive type (window type air conditioner or the like) having no outdoor unit. The air blowing device according to an aspect of the present invention is not limited to an air conditioner, and any air blowing device may be used as long as it is a fan such as a desk fan or an air cleaner.

Although the drawings described below (particularly fig. 2 to 5 and the like) show various components of the indoor unit 1, the components that are not related to the present embodiment are not described. The components for which the description is omitted are understood to be the same as the known components. In addition, the drawings are for the purpose of schematically illustrating the shape, structure, and positional relationship of the respective members, and it is to be noted that the description is not necessarily in terms of size.

(outline of indoor Unit)

Fig. 1 is a perspective view showing an appearance of the indoor unit 1 in a front direction. As shown in fig. 1, the indoor unit 1 includes an airflow panel 11 (airflow direction adjustment plate) and a casing 12 (casing) as outer components. The airflow panel 11 is supported by the case 12 so as to be openable and closable.

In fig. 1, when the indoor unit 1 mounted on a wall surface is viewed from the front (front), the ceiling side is defined as the upper side, the floor side is defined as the lower side, and the longitudinal direction of the indoor unit 1 is defined as the left-right direction. The direction from the rear surface (back surface) to the front surface of the indoor unit 1 is referred to as a depth direction.

Hereinafter, the left-right direction is also referred to as the X direction, the depth direction is also referred to as the Y direction, and the up-down direction is also referred to as the Z direction. Here, the positive direction of the X direction is taken as the right direction. The positive direction of the Y direction is referred to as the front direction. The positive Z-direction is referred to as the up direction. In the present embodiment, the X direction, the Y direction, and the Z direction are orthogonal to each other.

The airflow panel 11 defines a flow path of an airflow blown into the room. The airflow panel 11 is opened and closed by a control device (not shown) in the indoor unit 1 in accordance with the operation state of the indoor unit 1. When the airflow panel 11 is opened, the air outlet as the flow path is exposed.

Further, the housing 12 may be provided with a light receiving unit (input unit) that receives light such as infrared rays emitted from a remote control device that receives an operation instruction from a user. Further, the housing 12 may be provided with a notification unit (for example, a display unit, a lamp, and a speaker) for notifying various information to the user.

(details of the indoor unit)

Fig. 2 to 5 are sectional views showing the indoor unit 1 shown in fig. 1 as viewed along the AA line.

As shown in fig. 2, the indoor unit 1 includes a heat exchanger 13 and a cross-flow fan 14 inside a casing 12.

The heat exchanger 13 is provided above and inside the casing 12 so as to surround an upper portion of a cross flow fan 14 described later. The heat exchanger 13 functions as an evaporator for evaporating the refrigerant during the cooling operation, and takes heat from the air in the room. On the other hand, the heat exchanger 13 functions as an evaporator for liquefying the refrigerant during the heating operation, and releases heat into the room.

The cross-flow fan 14 has a central axis parallel to the longitudinal direction (X direction) of the indoor unit 1, and is rotatable around the central axis by the driving force of a motor (not shown). The cross flow fan 14 includes a plurality of blades (not shown) for sucking and sending air in the circumferential direction. By the rotation of the cross flow fan 14 around the center axis, air in the room is sucked from the air suction port, and an air flow blown out from the air flow panel 11 into the room is generated. Specifically, the air flow passes along the air intake port, that is, the upper surface of the casing 12, the heat exchanger 13, the cross-flow fan 14, and the air flow panel 11 in this order.

The airflow panel 11 opens and closes an air outlet 15, and the air outlet 15 blows out an airflow (wind) generated in the indoor unit 1 into the room, and when opened, forms a part of an airflow path 15a of the wind blown out from the air outlet 15, as shown in fig. 4. This can ensure a necessary length while keeping the indoor unit 1 compact.

The airflow panel 11 is rotatably and pivotally supported by a rotary shaft 16 so as to form a gap with the air outlet 15 when opened and closed. Specifically, as shown in fig. 3 and 5, a gap a is formed between the end 11a of the airflow panel 11 in the rotation axis direction and the end of the air passage 15a on the outlet 15 side. This prevents the airflow panel 11 from interfering with the air outlet 15 when opening and closing. The rotary shaft 16 is provided at a position slightly shifted from the inside of the housing 12 on the extension line of the direction (Y direction) toward the air outlet 15 of the airflow panel 11. By shifting the rotation axis 16 in this way, the size of the gap a formed between the airflow panel 11 and the air outlet 15, which is generated when the airflow panel 11 opens and closes, can be changed. In the case of the present embodiment, the gap a formed between the airflow panel 11 and the air outlet 15 is larger in the closed state than in the open state of the airflow panel 11, and the position of the rotary shaft 16 is determined.

(sealing Member)

A sealing member is provided at the end of the air passage 15a of the outlet 15 to seal the gap a. The sealing member 17 is made of a material having elasticity, such as a substantially rectangular parallelepiped heat insulator, extending in the longitudinal direction (X direction) of the air outlet 15. The sealing member 17 is adhesively fixed to an adhesive surface 15b orthogonal to the air passage 15a of the case 12 with an adhesive. The material of the sealing member 17 is not particularly limited as long as it is a material having elasticity, such as a heat insulator.

The width H of the sealing member 17 is defined as the length in the direction parallel to the air passage 15 a. The width H is set to a length that enables the end 11a of the airflow panel 11 to abut against the airflow panel 11 with an appropriate pressure in a state where the airflow panel 11 is open (fig. 4 and 5), and that does not contact the end 11a of the airflow panel 11 in a state where the airflow panel 11 is closed (fig. 2 and 3). That is, the sealing member 17 forms the sealing gap a only when the airflow panel 11 is opened. Accordingly, in a state where the airflow panel 11 is opened, the sealing member 17 is pressed toward the adhesive surface 15b by the airflow panel 11, and therefore, the sealing member 17 is less likely to peel off from the adhesive surface 15 b. Further, since the sealing member 17 is not normally in contact with the air flow panel 11 when the air flow panel 11 is opened or closed, the sealing member 17 is not peeled off in accordance with the opening or closing operation of the air flow panel 11.

The thickness D of the sealing member 17 (the length in the direction orthogonal to the air passage 15 a) is equal to or greater than the thickness of the airflow panel 11. Thus, even if the airflow panel 11 is bent and deformed (dotted line portion of fig. 5), the thickness of the sealing member 17 is equal to or greater than the thickness of the airflow panel 11, and thus the amount of deformation of the airflow panel 11 is absorbed by the sealing member 17 when contacting the sealing member 17. This makes it possible to reliably seal the gap a between the air flow panel 11 and the air outlet 15 even if the air flow panel is slightly deformed.

The thickness D of the sealing member 17 is preferably equal to the thickness of the airflow panel 11, but more preferably, the thickness D of the sealing member 17 is equal to or greater than the thickness of the airflow panel 11. The upper limit of the thickness is determined appropriately by the size of the indoor unit 1 within a range that does not inhibit the rotation of the airflow panel 11 and that satisfies the condition that the airflow panel does not protrude outside the casing 12 of the indoor unit 1.

(Effect)

According to the indoor unit 1 configured as described above, when air is blown, that is, when the airflow panel 11 is opened, the gap a between the airflow panel 11 and the air outlet 15 is reliably sealed by the sealing member 17. This can prevent air leakage from the gap a (cold air in the case of cooling, and warm air in the case of heating). This can suppress a functional degradation due to air leakage. For example, in the case of cooling, condensation due to cold air leakage can be avoided, and therefore a decrease in cooling function can be suppressed. In particular, in order to efficiently circulate the blown air into the room, it is effective when the indoor unit 1 is disposed on the upper side close to the ceiling in the room, and when the air outlet 15 of the indoor unit 1 is disposed on the lower side of the indoor unit 1.

In the indoor unit 1 configured as described above, since the seal member 17 can reliably absorb deformation such as warpage of the airflow panel 11, the gap a can be reliably sealed even when the airflow panel 11 is long in the longitudinal direction. In this case, the airflow panel 11 used when the length (width) in the longitudinal direction of the air outlet 15 is long is particularly effective for blowing out the airflow from the fan that is long in the longitudinal direction, like the cross flow fan 14. That is, the width of the air outlet 15 is particularly effective when the length of the air blower in the longitudinal direction of the air blower that generates the blown air is substantially long (equal to or longer than a predetermined length).

In the blower device of the present invention, the fan generating the airflow is not limited to the cross flow fan 14, and may be a fan having a wide width of the air outlet 15, such as a propeller fan or a sirocco fan.

In addition, when the air outlet 15 of the indoor unit 1 is provided below the indoor unit 1 as in the present embodiment, it is preferable that the airflow panel 11 is inevitably provided below the air outlet 15 in order to reliably seal the leakage of the airflow. However, the position of installation of the airflow panel 11 is not limited to this, and for example, when the air outlet 15 of the indoor unit 1 is provided above the indoor unit 1, the airflow panel 11 is preferably also provided above the air outlet 15.

In the second and third embodiments below, various examples of the method of providing the sealing member will be described.

[ second embodiment ]

Other embodiments of the present invention will be described below. For convenience of explanation, members having the same functions as those described in the above embodiments are given the same reference numerals, and explanations thereof are omitted.

In the present embodiment, various examples of the method of installing the airflow panel 11 and the sealing member 17 (rectangular shape) in the indoor unit 1 according to the first embodiment will be described with reference to (a) to (c) of fig. 6, and the sealing member 17 seals the gap a between the airflow panel 11 and the air outlet 15. In the figure, the dotted line shows a state in which the airflow panel 11 is warped.

Fig. 6 (a) is a diagram schematically illustrating the indoor unit 1 shown in fig. 4, and is a diagram in which a wall is provided on the air passage 15a side of the adhesive surface 15b of the sealing member 17. The wall is approximately the same length as the width H of the sealing member 17. Thus, even if the airflow panel 11 rotates in the arrow direction about the rotation shaft 16, the wall can prevent the sealing member 17 from being peeled off.

Fig. 6 (a) and 6 (b) are views showing a state where the wall is short. In this case, the width of the sealing member 17 is difficult to adjust because the air passage 15a side is opened.

Fig. 6 (b) is a view showing a state where the wall is thin (fig. 6 (c)). In this case, the air passage 15a is further opened.

Although the example using the substantially rectangular parallelepiped sealing member 17 has been described heretofore, in the third embodiment below, another example of the shape of the sealing member 17 is described.

[ third embodiment ]

In the present embodiment, an example of a sealing member having a shape other than a rectangular shape, which is provided between the airflow panel 11 and the sealing member 17 in the indoor unit 1 according to the first embodiment, will be described with reference to (d) to (f) of fig. 6, where the sealing member 17 seals the gap a between the airflow panel 11 and the air outlet 15. In the figure, the dotted line shows a state in which the airflow panel 11 is warped.

Fig. 6 (d) shows an example in which the adhesive surface 15b in fig. 6 (a) to (c) is a curved surface having a predetermined curvature. In this case, since the sealing member 18 is attached along the curved surface, the sealing member 18 also has a curved surface. The surface of the sealing member 18 with which the end portion 11a of the airflow panel 11 contacts is recessed, whereby warpage of the airflow panel 11 is easily absorbed, and as a result, the sealing effect by the sealing member 18 can be improved.

As shown in fig. 6 (d), fig. 6 (e) shows an example in which instead of providing the bonding surface 15b with a curved surface, recesses are formed in both flat surfaces, and the two sealing

members

19, 19 are bonded so as to correspond to the respective flat surfaces. In this case as well, as in fig. 6 (d), since the surface of the airflow panel 11 with which the end portion 11a contacts is recessed, the warpage of the airflow panel 11 is easily absorbed, and as a result, the sealing effect by the sealing member 18 can be improved.

The sealing

members

17, 18, and 19 shown in fig. 6 (a) to (e) are provided only on the air passage 15a side. However, the present invention is not limited to this, and for example, as shown in fig. 6 (f), the sealing member 20 may be provided on the end portion 11a of the airflow panel 11, regardless of the bonding surface 15b side of the air passage 15 a. In this case, as long as the gaps a are the same, the width H of the sealing member 19 provided on the air passage 15a side can be shortened, and therefore the sealing member 19 is less likely to peel off from the adhesive surface 15 b.

Further, in the first to third embodiments, the description has been given of the example in which the seal members 17 to 19 do not abut against the airflow panel 11, that is, the seal gap a is not provided, in any state in which the airflow panel 11 is closed. However, on the basis of the opening time of the airflow panel 11, the seal members 17 to 19 may also seal the gap a when closed.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention. Further, new technical features can be formed by combining the technical means disclosed in the respective embodiments.

Description of the reference numerals

1 indoor machine

11 airflow panel (wind direction adjusting board)

11a end portion

12 case body

13 heat exchanger

14 Cross flow fan

15 air outlet

15a air passage

15b bonding surface

16 rotating shaft

17. 18, 19, 20 sealing member

A gap

Claims

1. An air blowing device including an air direction adjustment plate that opens and closes an air outlet through which air is blown, the air blowing device forming a part of an air passage through which air is blown from the air outlet when the air blowing device is open, the air blowing device being characterized in that:

the wind direction adjustment plate is pivotally supported so as to be freely rotatable with a gap from the air outlet without interfering with a member forming the air outlet when the wind direction adjustment plate is opened and closed,

a sealing member that seals the gap when at least the air direction adjustment plate is opened is provided between the air direction adjustment plate and the air outlet,

the thickness of the sealing component is equal to or larger than that of the wind direction adjusting plate.

2. The air supply device according to claim 1, characterized in that:

the sealing member is formed to seal the gap only when the airflow direction adjustment plate is opened.

3. The air supply device according to claim 1 or 2, characterized in that:

the sealing member is provided on the blower outlet side.

4. The air supply device according to any one of claims 1 to 3, characterized in that:

the air outlet is provided below the air blowing device.

5. The air supply device according to any one of claims 1 to 4, characterized in that:

the width of the air outlet is more than the length of the air supply fan generating the air supply.

6. The air supply device according to any one of claims 1 to 5, characterized in that:

the air direction adjustment plate is provided below the air outlet.

7. The air supply device according to any one of claims 1 to 6, characterized in that:

the sealing member is made of an elastic heat insulating material.