The present invention relates to a ceiling-embedded air conditioner, and more particularly to the structure of an indoor unit.
In a ceiling-embedded air conditioner, an outdoor unit installed outdoors and an indoor unit installed in a ceiling of an air conditioning room are connected by a gas pipe and a liquid pipe to form a refrigerant circuit. The indoor unit has a box-shaped main unit that is buried in the ceiling back space, and a decorative panel that is disposed on the air conditioning room side of the ceiling and attached to the main unit.
As an example, in the invention described in Patent Literature 1, a U-shaped heat exchanger in the main unit, and a blowing fan formed of a sirocco fan surrounded by a fan casing in the center of the heat exchanger are provided. The decorative panel has a blowing opening at the center and suction openings along three sides below the heat exchanger.
Then, the air sucked from the suction opening can exchange heat with the refrigerant in the heat exchanger and can be blown out in one direction from the blowing opening. By surrounding the blowing fan with the heat exchanger, the distance between the blowing fan and the surface of the heat exchanger is almost constant, and there is little bias in the wind speed and air volume of the air passing through the heat exchanger. The heat exchanger is used effectively so that the heat exchange can be performed with efficiency.
Patent Literature 1: JP-A-2000-213767
Normally, the left/right airflow direction vane and the up/down airflow direction vane are provided at the air blowing opening, but since the air blowing opening itself is a fixed air blowing opening, even if the airflow direction vane is moved, the air blowing range is one direction that the air blowing opening faces, and it is difficult to air-condition the entire room.
Therefore, an object of the invention is to provide a ceiling-embedded air conditioner capable of blowing conditioned air over a wide range from an air blowing opening so that a room can be uniformly air-conditioned.
In order to solve the above-mentioned subject, this invention provides a ceiling-embedded air conditioner that includes a box-shaped main unit that includes an air blower and a heat exchanger and is disposed in a ceiling back space of an air conditioning room, and a decorative panel that is attached to a bottom surface of the main unit along a ceiling surface of the air conditioning room. The decorative panel is provided with an air suction part disposed on an air suction side of the air blower and an air blowing part disposed on an air sending side of the air blower. The air blowing part includes a raised portion in which a part of the decorative panel is raised toward the air conditioning room. The raised portion is formed with a fixed air blowing portion and movable air blowing portions disposed on both left and right sides. The movable air blowing portion is rotatable within a predetermined angle range about an axis orthogonal to a panel surface of the decorative panel or the ceiling surface. A first air blowing opening is provided on a side surface of the fixed air blowing portion, and a second air blowing opening is provided on a side surface of the movable air blowing portion. A conditioned air is blown out from the fixed air blowing portion and the movable air blowing portion along the panel surface.
Further, in the invention, the first air blowing opening of the fixed air blowing portion is opened toward a specific side of the decorative panel. The movable air blowing portion rotates between a first position where the second air blowing opening faces a specific side of the decorative panel and a second position facing another side adjacent to the specific side.
According to the invention, a fixed air blowing portion is disposed in the central portion of the raised portion in which a part of the decorative panel is raised toward the air-conditioning room side, movable air blowing portions are disposed on both sides of the fixed air blowing portion, the movable air blowing portions being rotatable around an axis orthogonal to the panel surface of the decorative panel or a ceiling surface within a predetermined angle range, and air blowing openings are formed on each side of the fixed air blowing portion and the movable air blowing portion. As a result, conditioned air is blown out from the air blowing opening over a wide area along the panel surface according to the rotation of the movable air blowing portion, so that the air conditioning room can be air-conditioned uniformly.
Hereinafter, some modes for carrying out the invention will be described in detail as embodiments based on the accompanying drawings. The invention is not limited to this.
An air conditioner according to the invention is a refrigerant circuit in which an outdoor unit (not illustrated) installed outdoors and an indoor unit 1 attached to a ceiling T1 of an air conditioning room R are connected by a gas pipe and a liquid pipe (both not illustrated).
An indoor unit 1 illustrated in
With reference to
The main unit 10 is installed on the ceiling back space T2 by suspending the mounting bracket 12 with a plurality of hanging bolts (not illustrated) fixed to the ceiling back space T2.
The decorative panel 70 includes a panel portion 71 in a rectangular shape larger than the top plate 111, and a side wall 72 which is erected from the rear surface of the panel portion 71 to the main unit 10 side and attached to the opened bottom surface of the box-shaped outer trunk 11.
The panel portion 71 includes an air suction part 73 that is opened in a square shape on one side 70b located on the rear side among the facing long sides, and an air blowing part 74 on another side 70a that exists in front of the long side facing the side 70b.
In the indoor unit 1 in
As illustrated in
Both the frame 721 and the beam 722 are made of sheet metal, and the beam 722 is disposed on a partition portion 713 formed between the air suction part 73 and the air blowing part 74 of the panel portion 71.
According to this, as illustrated in
Further, the beam 722 may be suspended between the long sides 70a and 70b of the frame 721 depending on the shapes and arrangements of the air suction part 73 and the air blowing part 74 and the like.
Next, the components housed in the main unit 10 will be described with reference to
A thin heat insulating sheet (not illustrated) may be provided on the inner surfaces of the side plates 112 and 113 of the outer trunk 11 without providing the heat insulating material 13. The center of the heat insulating material 13 is opened, and a part of the top plate 111 is exposed when viewed from below. A heat exchanger 20 and a fan unit 30 are fixed to the top plate 111 of this exposed portion.
As illustrated in
The heat exchanger 20 includes a plurality of strip-shaped aluminum fins 23 disposed in parallel, and two heat exchange parts of a front heat exchange part 20L on the left side in
The front heat exchange part 20L and the rear heat exchange part 20R is disposed to face each other, but are preferably combined in a V shape such that the gap on the upper end side becomes wider than the gap on the lower end side as illustrated in
In any case, the left and right ends of the front heat exchange part 20L and the rear heat exchange part 20R are connected by a connecting plate 21, and the space inside the heat exchanger 20 becomes an air blowing chamber F. The bottom surface of the heat exchanger 20 (the surface between the lower ends of the front heat exchange part 20L and the rear heat exchange part 20R) is closed by a drain pan 40 described later.
Further, in the gap between the heat exchanger 20 and the outer trunk 11, a first air suction chamber S1 is provided between the outer trunk 11 and the rear heat exchange part 20R, and a second air suction chamber S2 is provided between the outer trunk 11 and the front heat exchange part 20L. The first air suction chamber Si is disposed directly above the air suction part 73, and the second air suction chamber S2 communicates with the air suction part 73 via an air guide path L described later.
The fan unit 30 is disposed in the air blowing chamber F provided inside the heat exchanger 20. The fan unit 30 includes a sirocco fan type blowing fan 31, a fan motor 36, a fan mounting base 311 (see
The blowing fan 31 includes a cylindrical impeller 32 having a plurality of blades, a spiral fan casing 34 that contains the impeller 32, and a rotating shaft 35 that is connected to the center of the impeller 32.
The number of the blowing fans 31 is arbitrarily selected according to the air conditioning capacity, but in this embodiment, four fans are coaxially disposed side by side. The blowing fans 31 have the same structure.
In the fan unit 30, after the fan motor 36 is fixed to the top plate 111 by the motor mounting base 361, two blowing fans 31 are connected to each other at both ends of the fan motor 36 by the rotating shafts 35. Both ends of the rotating shaft 35 are fixed to the top plate 111 via bearing plates (not illustrated) made of, for example, L-shaped metal fittings. Further, there is a fan fixing part 341 (see
The fan casing 34 includes an accommodating part 342 that contains the impeller 32, and a cylindrical blower 343 that is formed continuously from the accommodating part 342 and extends downward below the lower end of the heat exchanger 20. A fan suction opening 344 that takes in air into the impeller 32 is opened in a circular shape on the side surface of the accommodating part 342.
The fan casing 34 may be divided into upper and lower parts in a plane parallel to the axial line of the impeller 32 so that the impeller 32 can be contained therein, or may be divided into left and right parts in a plane perpendicular to the axial line of the impeller 32. In the inside of the fan casing 34, the accommodating part 342 and the blower 343 continuously form a blowing path 33 for the blowing air H.
As described above, in this embodiment, since the fan unit 30 is disposed with the internal space surrounded by the heat exchanger 20 as the air blowing chamber F, when the impeller 32 of the blowing fan 31 rotates, the inside of the air blowing chamber F becomes negative pressure, and the air from the air suction part 73 passes through the front heat exchange part 20L and the rear heat exchange part 20R into the air blowing chamber F, and is sucked into the fan suction opening 344 to be blown out to the surroundings of the impeller 32. The blown air is blown in one direction along the blowing path 33 in the fan casing 34, and blown from the air blowing part 74 to the air conditioning room R.
The drain pan 40 that receives drain water generated in the heat exchanger 20 is provided at the lower end of the heat exchanger 20. The drain pan 40 is integrally formed with a heat insulating member 41 made of styrene foam and a drain sheet 42 made of resin provided on the surface facing the heat exchanger 20.
The drain pan 40 is formed in a rectangular shape having a size that covers the opening surface on the lower end side of the heat exchanger 20, and is also a partition plate that separates the air blowing chamber F from the air guide path L described later. The drain pan 40 is provided with ventilation holes 43 into which the cylindrical blower 343 of the fan unit 30 is fitted, as many as the blowing fans 31 (4 holes in this embodiment).
As described above, the heat exchanger 20 has the front heat exchange part 20L and the rear heat exchange part 20R disposed in a V shape, and the bottom surface is narrower than the upper surface, so that the drain pan 40 becomes smaller by that amount. The area occupied by the drain pan 40 in the main unit 10 becomes small, the ventilation resistance due to the drain pan 40 also decreases, and the ventilation area around the drain pan 40 expands to improve ventilation efficiency.
On the drain sheet 42 side of the drain pan 40, a gutter 45 is provided to receive the drain water generated in the heat exchanger 20. Further, since the dew condensation water generated on the outer surface side of the fan casing 34 during the cooling operation is received by the bottom surface of the drain pan 40, it is preferable to perform waterproof treatment around the ventilation holes 43.
Although not illustrated, the drain pan 40 may be provided with a drain pump or a drain hose for draining drain water, a float switch for controlling on/off of the drain pump, and the like.
The configuration of the decorative panel 70 will be described with reference to
According to this embodiment, the raised portion 740 has an elliptical shape that is a rounded rectangular shape made up of two parallel lines of equal length and two semicircles, and has the side surface (circumferential surface) having an inclined surface. The raised portion 740 has a fixed air blowing portion 75 in the central portion, and movable air blowing portions 77L and 77R on both left and right sides. When it is not necessary to distinguish the movable air blowing portions 77L and 77R, they are collectively referred to as the movable air blowing portion 77.
Referring also to
Semi-circular portions are formed at both ends of the raised portion 740 by a part of the rotation units 78L and 78R. When it is not necessary to distinguish between the rotation units 78L and 78R, they are collectively referred to as the rotation unit 78.
As can be seen from the perspective view of
The fixed air blowing portion 75 has a first air blowing opening 754 opening toward the long side (specific side) 70a, a Left/right airflow direction vane 752 (see
The movable air blowing portion 77 has a second air blowing opening 783 in a part of the side surface of the rotation unit 78, and the second air blowing opening 783 is provided with an up/down airflow direction vane 782. Since the left and right airflow directions can be changed by the rotation of the rotation unit 78, the movable air blowing portion 77 does not need a left/right airflow direction vane. The first air blowing opening 754 of the fixed air blowing portion 75 and the second air blowing opening 783 of the movable air blowing portion 77 are opened along the inclined surfaces (side surfaces) having the same inclination angle in order to give these air blowing openings 754 and 783 a unified design.
While the air blowing direction of the fixed air blowing portion 75 is the direction of the long side 70a, the movable air blowing portion 77 rotates between a first position where the second air blowing opening 783 faces the long side 70a and a second position to face the short sides 70c and 70d.
As illustrated in
Further, as illustrated in
According to this embodiment, the first air blowing opening 754 of the fixed air blowing portion 75 and the second air blowing opening 783 of the movable air blowing portion 77 are formed on the side surfaces of the raised portion 740 which is formed by projecting a part of the panel portion 71 in a trapezoidal cross-section shape toward the air conditioning room R. Therefore, the conditioned air is blown out substantially horizontally from the first air blowing opening 754 and the second air blowing opening 783 along the panel surface of the decorative panel 70, so that the conditioned air can be spread farther.
Further, the conditioned air is simultaneously blown out from the first air blowing opening 754 and the second air blowing opening 783, but it is difficult to make a boundary between the air flow blown out from the first air blowing opening 754 and the air flow blown out from the second air blowing opening 783, and the air conditioning room R can be uniformly conditioned.
Unlike the above embodiment, the first air blowing opening 754 and the second air blowing opening 783 may be opened in a vertical plane orthogonal to the panel surface (or ceiling surface) of the decorative panel 70.
Further, in the above-described embodiment, the fixed air blowing portion 75 and the left and right movable air blowing portions 77 are housed in the elliptical raised portion 740. However, as long as the movable air blowing portion 77 can rotate about the axial line orthogonal to the panel surface of the decorative panel 70 or the surface of the ceiling T1, the movable air blowing portions 77 may be simply disposed on both sides of the fixed air blowing portion 75 without being restricted by the appearance, and such aspects are also included in the invention.
The partition plate unit 50 illustrated in
The inner two ducts 51a and 51b are fitted into the corresponding ventilation holes 43a and 43b, and the two ducts 51c and 51d disposed outside are fitted into the corresponding ventilation holes 43a and 43b.
The ducts 51a and 51b are ducts for the fixed air blowing portion 75, and as illustrated in
The left/right airflow direction vane 752 is provided in the chamber 751a. Further, the first air blowing opening 754 is formed on the front surface side of the central air blowing unit 751, and the up/down airflow direction vane 753 is provided therein.
Although not illustrated, a motor for driving the left/right airflow direction vane 752 is disposed on the back surface of the chamber 751a, and a motor for driving the up/down airflow direction vane 754 is disposed beside the first air blowing opening 754.
The outer ducts 51c and 51d are ducts for the movable air blowing portion 77, and as illustrated in
Both the rotation units 78L and 78R are driven by a motor. The motor that drives the rotation unit 78 is disposed in a motor cover 512 illustrated beside the outer ducts 51c and 51d in
In this embodiment, the rotation units 78L and 78R are respectively rotatable from the first position to the position of 90° or more, for example, 100° as the second position. However, when the rotation units are rotated to such a position, a short circuit phenomenon may occur in which the blown air is sucked into the air suction part 73 without going to the air conditioning room R.
To prevent this, referring to
In this embodiment, the wall 711 is formed in a slope shape in which a part of the panel portion 71 around the rotation unit 78 rises up from the short sides 70c and 70d to the height of the top surface 781 of the rotation unit 78 or the height of the air suction part 73 to face between the rotation units 78L and 78R and the air suction part 73. In
According to this, the short circuit phenomenon when the rotation unit 78 is rotated to the vicinity of the maximum rotation position by the wall 711 is prevented, and the blown air flow reaches farther along a slope surface 712 of the wall 711. That is, the wall 711 not only prevents the short circuit phenomenon, but also serves as an airflow guide surface that allows the blown air to reach farther by providing the slope surface 712.
According to this embodiment, since the air blown out from the first air blowing opening 754 and the second air blowing opening 783 flows along the panel surface of the decorative panel 70, the remaining panel surface except for the air suction part 73 of the decorative panel 70 acts as an airflow guide surface including the slope surface 712 of the wall 711.
As described above, the decorative panel 70 is attached to the main unit 10 by fitting the side wall 72 into the bottom surface opening of the main unit 10 and screwing. At the time of this assembly, as illustrated by the arrow in
In this air guide path L, the air heading for the second air suction chamber S2 passes between the ducts 51 and 51, but in order to secure a larger amount of ventilation, as illustrated in
Next, the assembly of the indoor unit 1 will be described. In the main unit 10, first, the top plate 111 side of the outer trunk 11 is placed on an assembly table, and the heat insulating material 13 is fitted inside the outer trunk 11. Then, a gas connecting pipe and a liquid connecting pipe (both not illustrated) of the assembled heat exchanger 20 (the heat exchanger in which the front heat exchange part 20L and the rear heat exchange part 20R are connected by the connecting plate 21) are pulled out from the side plate 113. In this state, the heat exchanger 20 is fixed to the top plate 111 via a predetermined fixture (not illustrated). After that, the assembled fan unit 30 is disposed in the air blowing chamber F in the heat exchanger 20 and fixed to the top plate 111 via the motor mounting base 361, the fan fixing part 341, and the like.
Next, the gutter 45 on the drain sheet 42 side of the drain pan 40 is fitted to the bottom surface of the outer trunk 11 in alignment with the lower ends of the heat exchange parts 20L and 20R. At this time, the blower 343 of the fan casing 34 is fitted into the ventilation hole 43 of the drain pan 40.
The main unit 10 assembled as described above and the decorative panel 70 are individually packaged and transported to the installation site. The main unit 10 is installed on the ceiling back space T2 by being suspended by a plurality of hanging bolts embedded in the ceiling back space T2 in advance.
Then, the decorative panel 70 is attached from the air conditioning room R side. At this time, the duct 51 of the partition plate unit 50 is connected to the blower 343 of the fan casing 34. Although not illustrated, the indoor unit 1 can be operated by connecting a refrigerant pipe, a power supply line, and a signal line to the outdoor unit.
When the indoor unit 1 is stopped, as illustrated in
Then, the compressor and the fan motor (both not illustrated) of the outdoor unit and the fan motor 36 of the indoor unit 1 start operating in response to a user command from a remote controller (not illustrated) or a command from the air conditioning system.
In the indoor unit 1, the blowing fan 31 rotates by the operation of the fan motor 36. Due to the rotation of the blowing fan 31, the air in the blower 34 of the blowing fan 31 is blown out, so that the inside of the air blowing chamber F becomes a negative pressure, and the air K in the air conditioning room R is sucked from the air suction part 73 provided in the decorative panel 70.
Referring to
The air thus conditioned is sent out by the rotation of the blowing fan 31 from the blower 343 of the fan casing 34 toward the fixed air blowing portion 75 and the movable air blowing portion 77 of the decorative panel 70 through the duct 51.
The conditioned air sent to the fixed air blowing portion 75 is blown out from the first air blowing opening 754 in the direction guided by the left/right airflow direction vane 752 and the up/down airflow direction vane 753. In addition, the conditioned air sent to the movable air blowing portion 77 is blown out in the rotation direction of the rotation unit 78 and the direction guided by the up/down airflow direction vane 782.
Since the rotation units 78L and 78R can individually control the rotation, the conditioned air can be supplied in multiple directions except the direction of the long side 70b on the rear side where the air suction part 73 is provided, according to the user's request.
Next, some embodiments of the suction grille 80 attached to the air suction part 73 will be described.
First, as illustrated in
A suction grille 80 having an air filter on the rear surface side is attached to the air suction part 73 so that at least one of opening and closing and attachment and detachment is possible. A plurality of grille bars 81 is provided on the suction grille 80 along the long sides 70a and 70b of the panel portion 71 so as to be parallel to each other.
Corresponding to this, a dummy bar 82 is also formed on the extension of the grille bar 81 on the side of the side panel 71b, but in this state, a gap Da between the abutting portions of the panel body 71a and the side panel 71b will appear as a linear division line, which causes deterioration in appearance quality. The dummy bar is a bar that is closed by a panel material between bars and does not have a slit-shaped ventilation opening.
Therefore, in this embodiment, as illustrated in
According to this, when the decorative panel 70 installed on the ceiling surface is obliquely looked up from the position of the user in
Further, as a preferred mode, the gap Db between the abutting portions of the end 81e of the grille bar 81 and the end 82e of the dummy bar 82 is not parallel to the gap Da between the abutting portions of the panel body 71a and the side panel 71b, and is set to form a predetermined inclination angle θ with respect to the gap Da. In addition, each of the gaps Db is disposed at the same position in the vertical direction with the inclination angle θ, for example, each gap Db is arranged along a straight line parallel to the division line of the gap Da. Therefore, the gap Db can be made less conspicuous.
More preferably, as illustrated in
The rear side of the gap Db is the rear side of the gap Db when the decorative panel 70 installed on the ceiling surface is obliquely looked up from the position of the user in
Next, referring to
Referring again to
On the other hand, since the air suction part 73 is disposed on the rear side (long side 70b) of the decorative panel 70, the air sucked from the air suction part 73 easily flows into the first air suction chamber S1, and passes through the air guide path L in the second air suction chamber S2, so that the ventilation resistance is increased as that much.
Thereby, in the opening range of the suction grille 80 attached to the air suction part 73, a portion with a large suction amount and a portion with a small suction amount can be formed due to the relationship with the above-described arrangement of the air suction chambers S1 and S2. Speaking in
Therefore, if the grille bars 81 are evenly disposed in the opening of the suction grille 80, the opening areas are evenly divided, the opening areas tend to be insufficient in the portions with a large suction amount, and the opening areas are excessive in the portions with a small suction amount.
Therefore, in this embodiment, as illustrated in
That is, the gap between the grille bars 81 is narrowed on the front side of the suction grille 80, and the gap between the grille bars 81 is widened toward the rear side. As an example, as illustrated in
In this way, the air is efficiently sucked into the opening area, so that the suction capacity is improved by changing the gap between the grille bars 81 depending on the portion where the suction amount of air is large and the portion where the suction amount is large.
However, if the gap between the grille bars 81 is changed abruptly, the rows of the grille bars 81 will be rattled and the appearance quality will be degraded. Therefore, the gap is made gradually increased from the front to the rear, so that there will be less change and it look like an equal gap.
Next, some configurations of the switch operated when opening and closing the suction grille 80 will be described using
First, referring to
As illustrated in
The switch 90 is slidable in a direction orthogonal to the grille bar 81, and is disposed at, for example, two or three positions.
Further, a decorative dummy bar 82f having no ventilation opening is formed in the open/close side frame 80Fa in order to unify the appearance with the grille bar 81. Although not illustrated, the frame on the side opposite to the open/close side frame 80Fa is connected to the edge of the air suction part 73 by a hinge or the like.
Referring to
At the rear end 91b of the base plate 91, a knob piece 92 and a finger hook piece 93 are provided. The knob piece 92 is bent substantially vertically downward from the rear end 91b of the base plate 91 toward the air conditioning room R side.
On the other hand, the finger hook piece 93 is formed to face the knob piece 92 in an oblique direction (an obliquely left lower direction in
The switch 90 is provided such that the base plate 91 is slidably held by the pressing member 94 on the open/close side frame 80Fa. As illustrated in
On the other hand, on the open/close side frame 80Fa, a rib plate 801 which is overridden by the protruding curved portion 941 of the flat spring 94 as the switch 90 slides is provided upright.
According to this, when the protruding curved portion 941 gets over the rib plate 801, a predetermined click force is generated. The switch 90 is selectively held at a lock position (a position where a tip end 911 of the base plate 91 is engaged with the engagement hole 732) illustrated in
As the switch 90 is slidably attached to the open/close side frame 80Fa, in this first example, partial portions of the first grille bar 81a adjacent to the open/close side frame 80Fa and the second grille bar 81b adjacent thereto are cut by a length corresponding to the width of the switch 90. In the present specification, this cut-out portion is referred to as a “cut-out bar”, and is denoted by the symbol C.
In order to make up for the cut-out bar in appearance, a complementary dummy bar 921 is formed in the same shape as that of the first grille bar 81a in a sense of complementing the lower edge of the knob piece 92 in shape, and a complementary dummy bar 931 is formed in the same shape as that of the second grille bar 81b in a sense of complementing the lower end of the finger hook piece 93 in shape. When the switch 90 is at the lock position illustrated in
According to this, in the locked state, the knob piece 92 and the finger hook piece 93 of the switch 90 are both included in a part of the grille bar 81 and do not project from the grille surface, so that the appearance quality is improved.
Since a gap-shaped division line is visually recognized between the cut-out bar C of each of the grille bars 81a and 81b and the switch 90, when the decorative panel 70 is looked up from the air conditioning room R, it is possible to easily recognize the position where the switch 90 is located.
Further, since there is the gap FS for inserting a fingertip between the knob piece 92 and the finger hook piece 93, it is possible to put the fingertip in this gap FS and easily move the switch 90 to the unlock position illustrated in
In the unlock position illustrated in
In order to make it difficult for the fingertip to slip on the finger hook piece 93, a rib 932 may be provided on the lower end edge side of the inner surface of the finger hook piece 93, as illustrated in
As a second example, as illustrated in
In this case, as illustrated in the bottom view of
Then, at the lock position of the switch 90, the complementary dummy bar 921 at the lower end edge of the knob piece 92 is disposed in the cut-out bar C of the dummy bar 82f, and the complementary dummy bar 931 at the lower edge of the finger hook piece 93 is disposed in the cut-out bar C of the first grille bar 81a. The other points may be the same as those in the first example.
According to this, similarly to the first example, when locked, the complementary dummy bar 921 of the knob piece 92 of the switch 90 is included in a part of the dummy bar 82f, and the complementary dummy bar 931 of the finger hook piece 93 is included in a part of the first grille bar 81 so as not to protrude from the grille surface. Therefore, the appearance quality is improved.
Further, when locked, a part of the ventilation opening between the first and second grille bars 81a and 81b is blocked by the switch 90 in the first example. However, according to the second example, when locked, the ventilation opening between the first grille bar 81a and the second grille bar 81b is not blocked by the switch 90.
In this second example, when unlocked, as illustrated in
Next, another embodiment of the switch will be described with reference to
The guide surface 85 of the specific frame 80Fa has a high position on the side of the engagement hole 732 formed in the inner edge 731 of the air suction part 73 and a low position on the side of the first grille bar 81a. The guide surface is formed in a sloping surface with a right downward gradient from the high position to the low position in
The base plate 91 of the switch 90A is slidably held by the specific frame 80Fa along the guide surface 85. For this holding, for example, the pressing member 94 illustrated in
The tip end 91a of the switch 90A protrudes and retracts in the engagement hole 732 as the switch 90A slides. The knob piece 92 is provided on the rear end 91b of the switch 90A. In this case, the knob piece 92 is substantially vertically downward from the rear end 91b of the switch 90A in a state where the knob piece 92 is obliquely disposed on the guide surface 85.
The switch 90A slides between the lock position illustrated in
At the lock position illustrated in
According to this, the knob piece 92 is in the grille surface GS including the lower end edge 811 of the grille bar 81 when locked, and its presence is not conspicuous. However, the knob piece 92 protrudes downward from the grille surface GS only when unlocked by sliding the switch 90A diagonally downward, and becomes easy to grip.
Further, also in this other embodiment, the rib plate 801 forming one side of the click force generating mechanism is provided upright toward the guide surface 85 in the frame 80Fa, and a projection 95 forming the other side of the click force generating mechanism is formed on the rear surface side of the base plate 91 of the switch 90A.
In this case, the rib plate 801 is flexible, and the projection 95 bends the tip end of the rib plate 801 as the switch 90A slides to generate a click sound and get over it. As a result, the switch 90A is selectively held in the lock position illustrated in
1 Indoor unit
10 Main unit
11 Outer trunk
111 Top plate
112/113 Side plate
12 Mounting bracket
13 Heat insulating material
20 Heat exchanger
20L Front heat exchange part
20R Rear heat exchange part
21 Connecting plate
30 Fan unit
31 Blowing fan
32 Impeller
33 Blowing path
34 Fan casing
343 Blower
35 Rotating shaft
36 Fan motor
40 Drain pan
43 Ventilation hole
45 Gutter
50 Partition plate unit
51(51a to 51d) Duct
70 Decorative panel
70
a/70b Long side
70
c/70d Short side
71 Panel portion
71
a Panel body
71
b Side panel
711 Wall
72 Side wall
721 Frame
722 Beam
73 Air suction part
74 Air blowing part
740 Raised portion
75 Fixed air blowing portion
751 Central air blowing unit
754 First air blowing opening
77(77L, 77R) Movable air blowing portion
78(78L, 78R) Rotation unit
783 Second air blowing opening
80 Suction grille
80F Base frame
80Fa Open/close side frame
81(81a, 81b . . . ) Grille bar
82/82f Dummy bar
90 Switch
91 Base plate
92 Knob piece
93 Finger hook piece
1 Connecting portion
R Air conditioning room
T1 Ceiling
T2 Ceiling back space
F Air blowing chamber
S1/S2 Air suction chamber
L Air guide path
Number | Date | Country | Kind |
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2018-069686 | Mar 2018 | JP | national |
Filing Document | Filing Date | Country | Kind |
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PCT/JP2019/010752 | 3/15/2019 | WO | 00 |