JP7158593B2 - Blowout grill and indoor unit of air conditioner using the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a blowout grill and an indoor unit of an air conditioner using the same.

For example, the housing of an indoor unit in a ceiling-embedded air conditioner is formed with an air outlet for blowing air-conditioned air to an air-conditioned space. The outlet is provided with an outlet grill as a frame member forming the opening. The blow-out grill is provided with a vertical louver which is a blade member for adjusting the blow-out direction of air-conditioned air. Also, the orientation of the vertical louver can be changed by a driving device (see, for example, Patent Document 1).

In the case of the indoor unit of the air conditioner disclosed in Patent Document 1, the vertical louver has projections that protrude outward in the extension direction at each of its ends in the extension direction, or has protrusions that protrude outward in the extension direction. A concave portion is formed which is concave toward the direction. Further, the blow-out grille is formed with a concave portion corresponding to the convex portion of the vertical louver, or a convex portion protruding corresponding to the concave portion of the vertical louver. The vertical louver is rotatably attached to the blowout grill by fitting the recesses or protrusions of the blowout grille with the protrusions or recesses of the vertical louver.

Chinese Utility Model Publication No. 203231483

However, in the indoor unit of the air conditioner disclosed in Patent Document 1, either one or both of the vertical louver and the outlet grille are fitted together with the protrusions or recesses of the vertical louver and the protrusions or protrusions of the outlet grille. It was necessary to elastically deform and assemble. Therefore, depending on the situation, there is a risk that either or both of the vertical louver and the blowout grille may be damaged.

SUMMARY OF THE INVENTION The present invention is intended to solve the above-described problems, and provides a blowout grill that can be easily assembled without elastically deforming the blade member to the blowout panel and that can avoid damage during the assembly. An object of the present invention is to provide an indoor unit for an air conditioner that is

A blowout grill according to the present invention is a blowout grill provided in an indoor unit of an air conditioner having a housing in which a blowout port for supplying air-conditioned air to an air-conditioned space is formed, wherein the blowout grill is a blowout panel as a frame arranged at the blowout port; a plurality of blade members rotatably attached to the blowout panel for changing the blowing direction of the air; and an engaging mechanism that engages the members so as to be rotatable about the axis in the extension direction, wherein the engaging mechanism is a cylindrical engaging member provided on one of the blowout panel and each of the blade members. A joint shaft portion and a cylindrical engaging recess provided on the other side are provided, and the engaging shaft portion is formed with a groove formed by removing a part of a cylinder along the extension direction, and the engaging recess is formed with a notch part of the circumference of which is opened along the extension direction, and the engaging shaft part and the engaging recess part are engaged by combining the groove part and the notch part. It is.

Further, an indoor unit of an air conditioner according to the present invention is an indoor unit of an air conditioner having a housing in which an outlet for supplying air-conditioned air to an air-conditioned space is formed, wherein the outlet is provided with the outlet grille described above.

According to the blowout grille and the indoor unit of the air conditioning apparatus using the same according to the present invention, the plurality of blade members are attached to the blowout panel provided in the housing of the indoor unit via the engaging mechanism, respectively, in the extending direction. It is rotatably engaged with the shaft center. The engaging mechanism includes a cylindrical engaging shaft provided on one of the blowout panel and the blade member, and a cylindrical engaging recess provided on the other. The engaging shaft portion is formed with a groove formed by removing a part of the cylinder along the extension direction, and the engagement recess is formed with a notch part of which the circumference is opened along the extension direction. , the engaging shaft and the engaging recess are engaged by combining the groove and the notch. As a result, the blowout panel and each blade member can be easily assembled without being elastically deformed, and damage during assembly of the blowout panel and each blade member can be avoided.

2 is a schematic diagram showing a refrigerant circuit of the air conditioner according to Embodiment 1. FIG. Fig. 2 is a perspective view showing the appearance of an indoor unit in the air conditioner of Fig. 1; FIG. 3 is an explanatory diagram showing the configuration of the indoor unit of FIG. 2; FIG. 3 is an explanatory diagram showing a blow-out grill in the indoor unit of FIG. 2; 5 is a plan view showing vertical vanes in the outlet grill of FIG. 4; FIG. FIG. 5 is a perspective view showing vertical vanes in the outlet grill of FIG. 4; FIG. 5 is a top view showing vertical vanes in the outlet grille of FIG. 4; FIG. 5 is a perspective view showing the outlet grille of FIG. 4 as seen from the rear side; FIG. 9 is a configuration diagram showing the blowout grille of FIG. 8 as viewed from the bottom side; FIG. 9 is an enlarged perspective view showing a main part of the blow-out grill of FIG. 8; FIG. 4 is an explanatory diagram for explaining engagement between an engaging shaft portion and an engaging concave portion in the engaging mechanism according to Embodiment 1;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a blowout grill according to the present invention and an indoor unit of an air conditioner using the same will be described below with reference to the drawings. It should be noted that the forms of the constituent elements shown in the entire specification are merely examples and are not limited to these descriptions. In other words, the present invention can be modified as appropriate within a range not contrary to the gist or idea of the invention that can be read from the scope of claims and the entire specification. In addition, the technical idea of the present invention also includes a blow-out grill with such changes and an indoor unit of an air conditioner using the same. Further, in each figure, the same reference numerals are the same or equivalent, and this is common throughout the specification.

Embodiment 1.
<Configuration of air conditioner 1>
An air conditioner 1 according to Embodiment 1 will be described with reference to FIG. FIG. 1 is a schematic diagram showing a refrigerant circuit 5 of an air conditioner 1 according to Embodiment 1. FIG.

As shown in FIG. 1, the air conditioner 1 according to Embodiment 1 performs cooling or heating operation by transferring heat between the outside air and the indoor air via the refrigerant, thereby It is for harmonization and has an indoor unit 2 and an outdoor unit 3 .

In the air conditioner 1, the indoor unit 2 and the outdoor unit 3 are pipe-connected via refrigerant pipes 4, 4a, and 4b to form a refrigerant circuit 5 in which the refrigerant circulates. The refrigerant circuit 5 includes a compressor 10, a flow switching device 11, an outdoor heat exchanger 12, an expansion valve 13 and an indoor heat exchanger 14, which are connected via refrigerant pipes 4, 4a and 4b.

The outdoor unit 3 has a compressor 10 , a channel switching device 11 , an outdoor heat exchanger 12 and an expansion valve 13 . The compressor 10 compresses and discharges the sucked refrigerant. Here, the compressor 10 may include an inverter device (not shown). When an inverter device is provided, the capacity of the compressor 10 can be changed by changing the operating frequency with the control unit 6 . Note that the capacity of the compressor 10 is the amount of refrigerant sent out per unit time.

The channel switching device 11 is, for example, a four-way valve, and is a device that switches the direction of the coolant channel. The air conditioner 1 can realize heating operation or cooling operation by switching the refrigerant flow using the flow path switching device 11 based on an instruction from the control unit 6 . The outdoor heat exchanger 12 exchanges heat between refrigerant and outdoor air. In addition, the outdoor heat exchanger 12 is provided with an outdoor fan 15 in order to increase the efficiency of heat exchange between the refrigerant and the outdoor air. An inverter device (not shown) may be attached to the outdoor fan 15 . In this case, the inverter device changes the operating frequency of the fan motor 16, which is the driving source of the outdoor fan 15, to change the rotational speed of the fan. The outdoor blower 15 is not limited to this as long as the same effect can be obtained. For example, the type of the fan may be a sirocco fan or a plug fan. Further, the outdoor blower 15 may be of a pushing type or a pulling type.

Here, the outdoor heat exchanger 12 functions as an evaporator during heating operation, and performs heat exchange between the low-pressure refrigerant flowing from the refrigerant pipe 4b side and the outdoor air to evaporate the refrigerant. and flow out to the refrigerant pipe 4a side. In addition, the outdoor heat exchanger 12 functions as a condenser during cooling operation, and the refrigerant that has been compressed by the compressor 10 and has flowed through the flow path switching device 11 from the refrigerant pipe 4a side and the outdoor air. Heat is exchanged between them, the refrigerant is condensed and liquefied, and flowed out to the refrigerant pipe 4b side. Although the case where outdoor air is used as the external fluid has been described here as an example, the external fluid is not limited to gas containing outdoor air, and may be liquid containing water.

The expansion valve 13 is a throttle device that controls the flow rate of the refrigerant, and adjusts the pressure of the refrigerant by adjusting the flow rate of the refrigerant flowing through the refrigerant pipe 4 by changing the degree of opening of the expansion valve 13 . The expansion valve 13 expands the high-pressure liquid state refrigerant to the low-pressure gas-liquid two-phase state refrigerant to reduce the pressure during the cooling operation. The expansion valve 13 is not limited to this, and may be an electronic expansion valve, a capillary tube, or the like as long as the same effect can be obtained. For example, if the expansion valve 13 is an electronic expansion valve, the degree of opening is adjusted based on instructions from the controller 6 .

The indoor unit 2 includes an indoor heat exchanger 14 that exchanges heat between a refrigerant and indoor air, and an indoor fan 17 that adjusts the flow of the air with which the indoor heat exchanger 14 exchanges heat.

The indoor heat exchanger 14 functions as a condenser during heating operation, performs heat exchange between the refrigerant flowing from the refrigerant pipe 4a side and the indoor air, condenses and liquefies the refrigerant, and the refrigerant pipe It is made to flow out to the 4b side. In addition, the indoor heat exchanger 14 functions as an evaporator during cooling operation, and performs heat exchange between the refrigerant brought into a low pressure state by the expansion valve 13 flowing from the refrigerant pipe 4b side and the indoor air, The refrigerant takes the heat of the air, evaporates, and flows out to the refrigerant pipe 4a side. Although the case where indoor air is used as the external fluid has been described as an example, the external fluid is not limited to gas containing indoor air, and may be liquid containing water.

The operating speed of the indoor fan 17 is determined by user settings. It is preferable to attach an inverter device to the indoor fan 17 and change the operating frequency of the fan motor 18 to change the rotational speed of the fan. The indoor blower 17 is not limited to this as long as the same effect can be obtained. For example, the type of the fan may be a sirocco fan or a plug fan. Further, the indoor blower 17 may be of a pushing type or a pulling type.

<Example of Cooling and Heating Operation of Air Conditioner 1>
Next, the operation of the cooling operation will be described as an example of the operation of the air conditioner 1. FIG. The high-temperature and high-pressure gas refrigerant compressed and discharged by the compressor 10 flows into the outdoor heat exchanger 12 via the flow path switching device 11 . The gas refrigerant that has flowed into the outdoor heat exchanger 12 is condensed by heat exchange with the outside air blown by the outdoor fan 15 , becomes a low-temperature refrigerant, and flows out of the outdoor heat exchanger 12 . The refrigerant flowing out of the outdoor heat exchanger 12 is expanded and decompressed by the expansion valve 13 to become a low-temperature, low-pressure gas-liquid two-phase refrigerant. This gas-liquid two-phase refrigerant flows into the indoor heat exchanger 14 of the indoor unit 2, evaporates by heat exchange with the indoor air blown by the indoor fan 17, and becomes a low-temperature, low-pressure gas refrigerant in the indoor heat exchanger. It flows out from 14. At this time, the indoor air that has been cooled by absorbing heat by the refrigerant becomes conditioned air (blowing air), and is blown out from the indoor unit 2 into the room that is the space to be air-conditioned. The gas refrigerant that has flowed out of the indoor heat exchanger 14 is sucked into the compressor 10 via the flow switching device 11 and compressed again. In the cooling operation of the air conditioner 1, the above operations are repeated (indicated by solid arrows in FIG. 1).

Next, the operation of the heating operation will be described as an example of the operation of the air conditioner 1. FIG. The high-temperature and high-pressure gas refrigerant compressed and discharged by the compressor 10 flows into the indoor heat exchanger 14 of the indoor unit 2 via the flow switching device 11 . The gas refrigerant that has flowed into the indoor heat exchanger 14 is condensed by heat exchange with indoor air blown by the indoor blower 17 , becomes a low-temperature refrigerant, and flows out of the indoor heat exchanger 14 . At this time, the indoor air heated by receiving heat from the gas refrigerant becomes conditioned air (blowing air) and is blown out from the indoor unit 2 into the room. The refrigerant flowing out of the indoor heat exchanger 14 is expanded and decompressed by the expansion valve 13 to become a low-temperature, low-pressure gas-liquid two-phase refrigerant. This gas-liquid two-phase refrigerant flows into the outdoor heat exchanger 12 of the outdoor unit 3, evaporates by heat exchange with the outside air blown by the outdoor fan 15, and becomes a low-temperature low-pressure gas refrigerant in the outdoor heat exchanger 12. flow out from The gas refrigerant that has flowed out of the outdoor heat exchanger 12 is sucked into the compressor 10 via the flow switching device 11 and compressed again. In the heating operation of the air conditioner 1, the above operations are repeated (indicated by the dashed arrow in FIG. 1).

<Blowout grill 22>
Here, the indoor unit 2 of the air conditioner 1 according to Embodiment 1 and the outlet grill 22 provided in the indoor unit 2 will be described with reference to FIGS. 2 to 11. FIG. FIG. 2 is a perspective view showing the appearance of the indoor unit 2 in the air conditioner 1 of FIG. FIG. 3 is an explanatory diagram showing the configuration of the indoor unit 2 of FIG. 2. As shown in FIG. FIG. 4 is an explanatory diagram showing the blowout grille 22 in the indoor unit 2 of FIG. FIG. 5 is a plan view showing the vertical vanes 25 of the outlet grille 22 of FIG. FIG. 6 is a perspective view showing the vertical blades 25 in the blowout grille 22 of FIG. FIG. 7 is a top view showing the vertical blades 25 in the outlet grill 22 of FIG. FIG. 8 is a perspective view showing the outlet grille 22 of FIG. 4 as seen from the rear side. FIG. 9 is a configuration diagram showing the outlet grille 22 of FIG. 8 as viewed from the bottom side. FIG. 10 is a perspective view showing an enlarged main part of the blowout grille 22 of FIG. FIG. 11 is an explanatory diagram for explaining the engagement between the engaging shaft portion 261 and the engaging recessed portion 262 in the engaging mechanism 26 according to the first embodiment.

In the following description, the engagement mechanism 26 in Embodiment 1 is applied to a mechanism that engages the blowout panel 23 and the vertical blades 25 of the blade members. The engaging mechanism 26 is not limited to this. That is, the engagement mechanism 26 in Embodiment 1 can also be applied as a mechanism that engages the blowout panel 23 with the horizontal blades 24 of the blade members. In each figure, an arrow X indicates the height direction of the indoor unit 2 and indicates the vertical direction (also referred to as the vertical direction) in which the vertical blades 25 provided to the blowout panel 23 extend. An arrow Y is a direction perpendicular to the vertical direction X and indicates the depth direction of the indoor unit 2 . An arrow Z indicates the width direction of the indoor unit 2 orthogonal to the vertical direction X, and indicates the horizontal direction in which the horizontal blades 24 provided to the blowout panel 23 extend.

As shown in FIGS. 2 and 3, the indoor unit 2 is used, for example, in a ceiling-embedded air conditioner 1 (see FIG. 1), and a housing 20 forming an outer shell is formed in a rectangular parallelepiped shape. The housing 20 accommodates the indoor heat exchanger 14, the indoor fan 17, and the like. The housing 20 is formed with an outlet 21 for supplying air-conditioned air to the air-conditioned space on one side 2a facing the air-conditioned space when the indoor unit 2 is installed. The air outlet 21 is located in an opening 20a that penetrates the inner side of the housing 20 and the air-conditioned space side. A blowout grill 22 is provided at the blowout port 21 . That is, the air cooled or heated by the indoor unit 2 is blown out to the air-conditioned space through the opening 20 a and the blow grill 22 of the blow outlet 21 . Note that the arrow AF in FIG. 3 indicates the direction in which the air flows.

The blowout grille 22 includes a blowout panel 23 as a frame, and horizontal blades 24 and vertical blades 25 which are a plurality of blade members rotatably attached to the blowout panel 23 for changing the air blowing direction. I have. The blowout grille 22 also includes an engagement mechanism 26 that engages each vertical blade 25 with the blowout panel 23 so as to be rotatable about the axis in the extension direction X. As shown in FIG. Each horizontal blade 24 is rotatably engaged with the blowout panel 23 through a mounting wall portion 27 vertically provided on the blowout panel 23 about an axis extending in the horizontal direction Z. As shown in FIG.

Specifically, as shown in FIGS. 4 to 8, the engaging mechanism 26 includes a cylindrical engaging shaft portion 261 provided on each vertical blade 25 and a cylindrical engaging recess 262 provided on the blowout panel 23. and have. The engaging shaft portion 261 is provided at least on the upper surface side of the upper and lower surfaces in the extension direction X of each vertical blade 25 and at the inner end portion of the housing 20 in the depth direction Y of the indoor unit 2 . A groove portion 261a is formed in the engagement shaft portion 261 by removing part of the cylinder along the extension direction X (see FIGS. 5 to 7). In addition, a cutout portion 262a is formed in the engagement recessed portion 262 so that a part of the circumference is opened along the extension direction X (see FIG. 11). The engaging shaft portion 261 and the engaging concave portion 262 are engaged by combining the groove portion 261a and the notch portion 262a. That is, the groove portion 261a of the engaging shaft portion 261 and the notch portion 262a of the engaging recess portion 262 can be fitted. Here, a case where the engaging shaft portion 261 is provided on each vertical blade 25 side and the engaging recessed portion 262 is provided on the blowout panel 23 side will be described. is not limited to this. That is, one of the engaging shaft portion 261 and the engaging recess 262 may be provided on one side of each vertical blade 25 or the blowout panel 23 side, and the other may be provided on the other side of each vertical blade 25 side or the blowout panel 23 side. .

The blowout panel 23 has a rectangular shape extending in the horizontal direction Z. As shown in FIG. Each vertical blade 25 extends in the vertical direction X with respect to the blowout panel 23, and is arranged side by side in the horizontal direction Z with an interval therebetween. At this time, the intervals between the vertical blades 25 are constant. Further, the engagement recesses 262 of the blowout panel 23 correspond to the number of the vertical blades 25, and the intervals between the adjacent engagement recesses 262 are constant.

The engagement mechanism 26 further includes a cylindrical rotating portion 263 provided on each vertical blade 25 and a cylindrical holding portion 264 provided on the blowout panel 23 . Portion 263 is rotatably engaged. The rotating portion 263 is provided at least on the lower surface side of the upper and lower surfaces in the extension direction X of each vertical blade 25 and at the inner end portion of the housing 20 in the depth direction Y of the indoor unit 2 . The holding portions 264 provided on the blowout panel 23 correspond to the number of the vertical blades 25, and the intervals between adjacent holding portions 264 are constant. Here, a case where the rotating portion 263 is provided on each vertical blade 25 side and the holding portion 264 is provided on the blowout panel 23 side will be described, but the arrangement of the rotating portion 263 and the holding portion 264 is limited to this. never. That is, one of the rotating portion 263 and the holding portion 264 may be provided on one side of each vertical blade 25 or the blowout panel 23 side, and the other may be provided on the other side of each vertical blade 25 side or the blowout panel 23 side.

The engaging mechanism 26 has a sleeve 265 formed using an elastic resin member. This sleeve 265 is interposed between the rotating portion 263 and the holding portion 264 . Here, the sleeve 265 interposed between the rotating portion 263 and the holding portion 264 is formed using an elastic resin such as POM (polyacetal), PP (polypropylene), or PE (polyethylene). is preferred. In addition, the rotating portion 263 and the holding portion 264 are made of rigid resin such as ABS (acrylonitrile butadiene styrene), HIPS (high impact polystyrene), PS (polystyrene), or PMMA (polymethyl methacrylate). is preferred. As a result, it is possible to prevent the rigid resin members from sliding with each other, and to suppress the drive noise.

In the first embodiment, as the engaging mechanism 26, each vertical blade 25 is provided with the engaging shaft portion 261 and the rotating portion 263, and the blowout panel 23 is provided with the engaging recess portion 262 and the holding portion 264. , the configuration of the engagement mechanism 26 is not limited to this. That is, without providing the rotating portion 263 and the holding portion 264, the upper and lower surfaces of the vertical blades 25 and the blowout panel 23 are provided with the engaging shaft portion 261 and the engaging recess portion 262. can be

Each vertical blade 25 has a constant thickness in the extension direction X, and the thickness decreases in the air blowing direction AF orthogonal to the extension direction X. As shown in FIG. As a result, each vertical blade 25 can be rotated with a smaller force.

When each vertical blade 25 is provided with an engaging shaft portion 261, each engaging shaft portion 261 is surrounded by a first groove for avoiding interference with the engaging recessed portion 262 corresponding to the engaging shaft portion 261. A recessed portion 251 is formed. As a result, the engaging shaft portion 261 can be engaged with the engaging concave portion 262 without interfering with it.

Further, when each vertical blade 25 is provided with a rotating portion 263, a second recess portion 252 is formed around the rotating portion 263 to avoid interference with the holding portion 264 corresponding to the rotating portion 263. formed. As a result, the rotating portion 263 can be engaged with the holding portion 264 without interfering with it.

As shown in FIGS. 8 and 9, each vertical blade 25 is connected via a link arm 28 as a link member and integrally rotated by a driving device 40 connected to the link arm 28 . As a result, it is possible to omit the trouble of individually rotating the vertical blades 25, and to collectively rotate the vertical blades 25 together.

In addition, in each vertical blade 25, an insertion portion 253 into which the link arm 28 is inserted and a link arm attachment portion 254 to which the link arm 28 is attached are provided below the middle portion of each vertical blade 25 in the vertical direction X. , are placed. Thereby, the link arm 28 can be arranged at a position where the wind speed is low, and the pressure loss can be reduced as much as possible.

The link arm 28 is mated with the link arm attachment portion 254 of each vertical vane 25 on the one hand. Also, the link arm 28 is connected on the other hand with an arm 45 , which in turn is connected with the drive device 40 . The drive device 40 has a motor 41 as a drive source, and the motor 41 is arranged on a motor mount 42 . The drive shaft of the motor 41 is attached with an arm 45 connected to a link portion 44 via a motor shaft insertion portion 43 formed at the end of the link arm 28 on the side of the drive device 40 .

The arm 45 is driven by the motor 41 arranged on the motor mounting base 42 so that each vertical blade 25 rotates left and right in the horizontal direction Z with respect to the blowout port 21 of the blowout panel 23 via the link arm 28 . driven by Here, as an example, a case in which one link arm 28 is provided is illustrated and described. is preferably divided into two or more. As a result, it is possible to suppress deterioration in part dimensional accuracy that tends to occur in long resin parts.

Although not shown here, such an engaging mechanism 26 is provided not only in each vertical blade 25 arranged in the vertical direction X on the blowout panel 23 but also in the horizontal direction Z on the blowout panel 23. It can also be applied to each horizontal blade 24 arranged side by side with an interval therebetween. In this case, as with the vertical blades 25, each horizontal blade 24 can be easily attached to the blowout panel 23 without being elastically deformed.

<Effect in Embodiment 1>
As described above, according to the outlet grille 22 of Embodiment 1 and the indoor unit 2 of the air conditioner 1 using the same, the plural vertical blades 25 are provided in the housing 20 of the indoor unit 2. Each panel 23 is engaged with the panel 23 through an engaging mechanism 26 so as to be rotatable about the axis in the extension direction X. As shown in FIG. The engaging mechanism 26 includes a cylindrical engaging shaft portion 261 provided on one of the blowout panel 23 or each vertical blade 25 and a cylindrical engaging recess 262 provided on the other. The engaging shaft portion 261 is formed with a groove portion 261a in which a portion of the cylinder is removed along the extension direction, and the engagement recess portion 262 is formed with a notch portion in which a portion of the circumference is opened along the extension direction. 262a is formed, and the engaging shaft portion 261 and the engaging concave portion 262 are engaged by combining the groove portion 261a and the notch portion 262a. As a result, the blowout panel 23 and the vertical blades 25 can be easily assembled without being elastically deformed, and damage during assembly of the blowout panel 23 and the vertical blades 25 can be avoided.

1 air conditioner, 2 indoor unit, 2a surface, 3 outdoor unit, 4 refrigerant pipe, 4a refrigerant pipe, 4b refrigerant pipe, 5 refrigerant circuit, 6 control unit, 10 compressor, 11 flow path switching device, 12 outdoor heat exchange vessel, 13 expansion valve, 14 indoor heat exchanger, 15 outdoor fan, 16 fan motor, 17 indoor fan, 18 fan motor, 20 housing, 20a opening, 21 outlet, 22 outlet grille, 23 outlet panel, 24 horizontal Blade 25 Vertical blade 26 Engagement mechanism 27 Mounting wall portion 28 Link arm 40 Driving device 41 Motor 42 Motor mounting base 43 Motor shaft insertion portion 44 Link portion 45 Arm 251 First recessed portion 252 second recessed portion 253 insertion portion 254 link arm attachment portion 261 engagement shaft portion 261a groove portion 262 engagement recess portion 262a notch portion 263 rotation portion 264 holding portion 265 sleeve; AF blow direction, X vertical direction, extension direction, vertical direction, Y depth direction, Z horizontal direction.

Claims (13)

A blowout grill provided in an indoor unit of an air conditioner having a housing formed with a blowout port for supplying air-conditioned air to an air-conditioned space,
The blowout grill is
a blowout panel as a frame arranged at the blowout port;
a plurality of blade members rotatably attached to the blowout panel for changing the blowing direction of the air;
an engaging mechanism for rotatably engaging each of the blade members with respect to the blowout panel about an axis extending in the extension direction;
The engagement mechanism is
A cylindrical engaging shaft provided on one of the blowout panel or each of the blade members, and a cylindrical engaging recess provided on the other,
A groove portion is formed in the engaging shaft portion by removing a part of the cylinder along the extension direction,
The engaging recess is formed with a notch part of the circumference of which is opened along the direction of elongation,
The blowout grille, wherein the engaging shaft portion and the engaging concave portion are engaged by combining the groove portion and the notch portion. The engagement mechanism is
further comprising a cylindrical rotating portion provided on one of the blowout panel or each of the blade members, and a cylindrical holding portion provided on the other;
2. The outlet grill according to claim 1, wherein said rotating portion is rotatably engaged with said holding portion. The engagement mechanism has a sleeve formed using an elastic resin member,
3. The outlet grill according to claim 2, wherein the sleeve is interposed between the rotating portion and the holding portion. Each blade member is
The thickness in the direction of elongation is constant,
4. The blowout grill according to any one of claims 1 to 3, wherein the thickness becomes thinner as the air blows out in the direction perpendicular to the extending direction. When each blade member is provided with the engaging shaft,
5. A first recess is formed around each of said engaging shafts for avoiding interference with said engaging recesses corresponding to said engaging shafts. 1. The outlet grill according to claim 1. When each blade member is provided with the rotating portion,
6. The rotating portion according to any one of claims 2 to 5, wherein a second recess portion for avoiding interference with said holding portion corresponding to said rotating portion is formed around said rotating portion. blowout grill. The blowout panel has a rectangular shape extending in the horizontal direction,
Each blade member is
7. An outlet grill as claimed in any one of claims 1 to 6, provided extending perpendicularly to the outlet panel and arranged side-by-side in spaced relation to each other. Each blade member is
8. The outlet grill according to any one of claims 1 to 7, wherein the grilles are connected via link members and are rotated integrally by a driving device connected to the link members. 9. The outlet grill according to claim 8, wherein, in each of said blade members, a link arm mounting portion to which said link member is mounted is arranged below an upper and lower middle portion of each of said blade members in an extending direction. 10. The outlet grill according to claim 8, wherein said link member is divided into two or more. Each blade member is
11. The outlet grille according to any one of claims 7 to 10, wherein the outlet grille extends in the horizontal direction as well as in the vertical direction of the outlet panel and is arranged side by side with a space therebetween. A blowout grill provided in an indoor unit of an air conditioner having a housing formed with a blowout port for supplying air-conditioned air to an air-conditioned space,
The blowout grill is
a blowout panel as a frame arranged at the blowout port;
a plurality of blade members rotatably attached to the blowout panel for changing the blowing direction of the air;
an engaging mechanism for rotatably engaging each of the blade members with respect to the blowout panel about an axis extending in the extension direction;
The engagement mechanism is
a cylindrical engaging shaft portion provided on each of the upper and lower surfaces in the vertical direction at one end side in the horizontal direction orthogonal to the vertical direction in which each blade member extends;
a cylindrical engagement recess formed to protrude from the upper and lower surfaces of the inner wall of the blowout panel in the vertical direction,
Each blade member is
A groove portion is formed by removing a part of a cylinder along the extension direction in the engaging shaft portion arranged at least on the upper surface of the upper and lower surfaces,
The blowout panel is
A notch part of the circumference of which is opened along the extension direction is formed in the engaging recess arranged at least on the upper surface of the upper and lower surfaces,
The blow-out grille, wherein the groove portion of the engaging shaft portion and the notch portion of the engaging recess portion can be fitted together. An indoor unit of an air conditioner having a housing in which an outlet for supplying air-conditioned air to an air-conditioned space is formed,
An indoor unit of an air conditioner, wherein the outlet includes the outlet grill according to any one of claims 1 to 12.

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