JP2009174817A - Indoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constitute an indoor unit of an air conditioner to be installed on a ceiling, so that the indoor unit can be visually recognized whether it is in operation or not. <P>SOLUTION: A lighting portion 26 lit during an operation is disposed on a casing 20 of the indoor unit 1. The lighting portion 26 is exposed to an indoor space along a supply opening 14. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an indoor unit of an air conditioner installed on a ceiling.

Conventionally, an indoor unit of an air conditioner installed on a ceiling is known. For example, Patent Document 1 discloses this type of indoor unit. This indoor unit includes a housing and a front grille attached to the front portion of the housing. The front grille is exposed to the indoor space. The front grill is formed with a suction grill and an air outlet.
JP 2006-71121 A

  By the way, in the indoor unit of the conventional air conditioner, it is impossible to recognize whether or not the occupant is operating only by visual observation. For this reason, there is a risk that the occupant may forget to turn off the power without noticing that the occupant is operating, which is not desirable from the viewpoint of energy saving.

  The present invention has been made in view of such a point, and an object of the present invention is to make it possible to visually recognize whether or not an indoor unit of an air conditioner installed on a ceiling is in operation. .

  1st invention makes object the indoor unit of the air conditioning apparatus by which the casing (20) in which the suction inlet (13) and the blower outlet (14) were formed is installed in a ceiling. The casing (20) of the indoor unit is exposed to the indoor space along the outlet (14) and is lit to indicate that the indoor unit (1) is in operation. (26) is provided.

  In the first invention, the lighting unit (26) that is lit to indicate that the indoor unit (1) is in operation is provided so as to be exposed to the indoor space. The lighting part (26) is provided so as to be exposed along the air outlet (14). In this 1st invention, light is radiate | emitted from the lighting part (26) in alignment with the blower outlet (14) of a casing (20) during a driving | operation.

  In a second aspect based on the first aspect, the lighting part (26) is provided on the lower surface of the casing (20).

  In the second invention, the lighting part (26) is exposed from the lower surface of the casing (20). For this reason, the resident can visually recognize the lighting part (26) from all directions with respect to the indoor unit.

  According to a third invention, in the second invention, the lower surface of the casing (20) is formed with the air outlet (14) along the entire circumference of the outer periphery thereof, while the lighting part (26) , Exposed at the corner of the lower surface of the casing (20).

  In the third invention, since the blower outlet (14) is formed along the entire circumference of the outer periphery of the lower surface of the casing (20), the blower outlet (14) is also formed at the corner portion of the lower surface of the casing (20). Has been. The lighting part (26) is exposed along the air outlet (14) at the corner of the lower surface of the casing (20).

  In a fourth aspect based on the third aspect, the casing (20) is detachably provided with a corner panel (45) that forms a corner portion on the lower surface of the casing (20). (26) is provided in the corner panel (45).

  In 4th invention, the lighting part (26) is provided in the detachable corner panel (45). For this reason, even if it does not remove the main body of a casing (20), it is possible to remove a lighting part (26) with a corner panel (45).

  According to a fifth invention, in any one of the first to fourth inventions, a step is formed along the air outlet (14) on the lower surface of the casing (20), while the lighting portion ( 26) is provided so as to be exposed from both the lower surface and the side surface sandwiching the lower corner of the step.

  In 5th invention, the lighting part (26) is exposed from both the lower surface and side surface which pinch | interpose the lower corner of the level | step difference of the lower surface of a casing (20). When the lighting part (26) is lit, light is emitted from the lower surface and side surfaces thereof. For this reason, for example, light is emitted from the lighting unit (26) at a wider angle than when light is emitted from only one surface.

  According to a sixth invention, in any one of the first to fifth inventions, the lighting part (26) includes a light emitting part (27) provided on the back side of the lower surface of the casing (20), A light transmitting portion (28) that is provided so as to be exposed to the indoor space and transmits light emitted from the light emitting portion (27) to the indoor space.

  In 6th invention, the lighting part (26) is provided with the light emission part (27) and the light transmissive part (28). In the lighting part (26), the light emitted from the light emitting part (27) enters the light transmitting part (28), and the incident light passes through the light transmitting part (28) and is emitted into the indoor space.

  In a seventh aspect based on the sixth aspect, the surface of the light transmitting portion (28) exposed to the indoor space is painted in the same color as the lower surface of the casing (20).

  In the seventh invention, the same color as the lower surface of the casing (20) is applied to the exposed surface of the light transmitting portion (28) to the indoor space. For this reason, when the lighting part (26) is turned off, the lighting part (26) is less noticeable.

  In the present invention, light is emitted from the lighting part (26) along the air outlet (14) of the casing (20) during operation. For this reason, the occupant can recognize whether or not the vehicle is in operation based on whether or not light is emitted from the lighting unit (26). That is, the occupant can recognize whether or not the user is driving by visual observation. In particular, in the present invention, the lighting part (26) is exposed along the air outlet (14). For this reason, since light is emitted from a relatively wide area during operation, the occupant can recognize whether the operation is in progress or not even if it is slightly away from the indoor unit. Therefore, it is possible to suppress forgetting to turn off the power without noticing that the occupant is in operation, and energy saving can be achieved.

  Moreover, according to the said 2nd invention, an in-room person can visually recognize the lighting part (26) from all directions with respect to an indoor unit. For this reason, the occupant can recognize whether or not the driver is operating visually in any direction with respect to the indoor unit.

  Moreover, according to the said 4th invention, even if it does not remove the main body of a casing (20), a lighting part (26) can be removed. For this reason, the maintenance of the lighting part (26) can be performed relatively easily.

  In the fifth invention, the lighting unit (26) is provided so as to be exposed from both the upper surface and the side surface sandwiching the lower corner of the step formed on the lower surface of the casing (20). 26) light is emitted from a wide angle. For this reason, since the lighting part (26) in lighting becomes more conspicuous, it can be made easy to notice that the occupant is driving.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  The present embodiment is an indoor unit (1) of an air conditioner according to the present invention. This indoor unit (1) is a ceiling-mounted indoor unit installed on the ceiling of an indoor space. The indoor unit (1) is provided with a so-called cleaning function that automatically cleans the suction filter (30).

  The air conditioner includes a refrigerant circuit that performs a vapor compression refrigeration cycle, and is configured to be capable of performing a cooling operation and a heating operation as an air conditioning operation. Of the components connected to the refrigerant circuit, the indoor unit (1) is provided with an indoor heat exchanger (22).

  As shown in FIG.1 and FIG.2, the indoor unit (1) is provided with the casing (20) which consists of a main body casing (10) and a decorative panel (11). The main casing (10) is formed in a substantially rectangular parallelepiped box shape, and the lower end is opened. The main casing (10) is installed behind the ceiling. The main casing (10) includes an upper casing (10a) and a lower casing (10b) attached to the lower portion of the upper casing (10a). A heat insulating material (17) is laminated on the inner surface of the upper casing (10a).

  The decorative panel (11) is formed in a substantially rectangular plate shape as shown in FIG. The decorative panel (11) is attached to the main casing (10) so as to cover the lower side of the main casing (10). In this state, the front surface (lower surface) of the decorative panel (11) is exposed to the indoor space, and the outer peripheral portion of the rear surface (upper surface) of the decorative panel (11) contacts the ceiling plate (16) over the entire periphery.

  The decorative panel (11) is formed with a suction port (13) and an air outlet (14). That is, the inlet (13) and the outlet (14) are formed on the lower surface of the casing (20). The suction port (13) is formed at the center of the suction grille (12) of the decorative panel (11). The suction port (13) is composed of a plurality of slits, and is formed in a substantially square shape as a whole.

  The air outlet (14) is formed between the suction grill (12) and the outer peripheral portion of the decorative panel (11). The blower outlet (14) is formed along the entire periphery of the outer periphery of the decorative panel (11). In the indoor unit (1), the air outlet (14) is formed not only in the portion along each side of the outer periphery of the decorative panel (11) but also in each corner portion. The suction grill (12) is formed with an insertion port (18) for removing dust from a dust collection container (60) and a dust storage box (90), which will be described later.

  In addition, a stepped portion (35) is formed on the outer peripheral portion of the decorative panel (11) on the outlet (14) side so that the outside protrudes downward from the inside. In the step portion (35), the inner side is the upper step surface and the outer side is the lower cross section. The step portion (35) is formed along the entire periphery of the air outlet (14). In addition, the strip | belt-shaped uneven | corrugated | grooved part (37) which consists of three groove | channels is formed in the lower step surface of a level | step-difference part (35) over the perimeter (refer FIG. 7).

  A detachable corner panel (45) is provided at each corner of the decorative panel (11). Each corner panel (45) is provided such that the inner surface thereof becomes the stepped surface of the stepped portion (35). The uneven portion (37) is formed at the inner end of the front surface of each corner panel (45). One of the four corner panels (45) is provided with a lighting part (26) to be described later. The rear surface of the corner panel (45) faces the space behind the ceiling except for the outer portion that abuts the ceiling plate (16).

  An indoor heat exchanger (22), a drain pan (23), and an indoor fan (21) are provided inside the upper casing (10a). In addition, as shown in FIG. 4, the lower casing (10b) includes a suction filter (30), a filter driving unit (40), a dust removing unit (50), a dust collecting container (60), and dust. A storage box (90) is provided.

  The indoor fan (21) is a so-called turbo fan. The indoor fan (21) is disposed near the middle of the upper casing (10a). The indoor fan (21) includes a fan motor (21a) and an impeller (21b). The fan motor (21a) is fixed to the top plate of the upper casing (10a). The impeller (21b) is connected to the rotation shaft of the fan motor (21a). A bell mouth (24) communicating with the suction port (13) is provided below the indoor fan (21). The indoor fan (21) is configured to blow out air sucked from below through the bell mouth (24) in the circumferential direction.

  The indoor heat exchanger (22) is a cross-fin type fin-and-tube heat exchanger. The indoor heat exchanger (22) is formed in a square shape in plan view, and is disposed so as to surround the periphery of the indoor fan (21). In the indoor heat exchanger (22), heat is exchanged between the indoor air sent by the indoor fan (21) and the refrigerant.

  The drain pan (23) is provided below the indoor heat exchanger (22). The drain pan (23) is for receiving drain water generated by condensation of moisture in the air in the indoor heat exchanger (22). The drain pan (23) is provided with a drain pump for draining drain water (not shown).

  The suction filter (30) is for capturing dust in the air from the suction port (13) toward the bell mouth (24). The suction filter (30) is formed in a disc shape. The suction filter (30) is attached so as to cover a circular vent formed in the partition plate (25) at the upper end of the lower casing (10b). The suction filter (30) is rotatably attached to the center of a radially formed vent rib (not shown). A filter-side gear portion is formed on the outer peripheral surface of the suction filter (30) (not shown).

  The filter drive unit (40) includes a motor and a motor-side gear unit that is rotated by the motor. The filter driving part (40) is provided outside the suction filter (30) so that the motor side gear part meshes with the filter side gear part. The filter drive unit (40) rotates the suction filter (30) by the rotation of the motor during the cleaning operation for cleaning the suction filter (30).

  The dust removing unit (50) is for removing dust trapped by the suction filter (30). The dust removing unit (50) is attached to a dust collecting container (60) described later. The dust removing unit (50) includes a rotating brush (51) that contacts the suction filter (30) and a brush driving unit (53) that rotates the rotating brush (51). In the dust removing unit (50), the brush driving unit (53) rotates the rotating brush (51) during the cleaning operation.

  The dust collection container (60) is disposed below the suction filter (30). The dust collection container (60) collects dust scraped from the suction filter (30) by the rotating brush (51) and dust scraped from the rotating brush (51) by the cleaning brush (52). The collected dust is temporarily stored.

  Connected to the dust collecting container (60) is a damper box (81) having a first chamber and a second chamber formed therein. Between the first chamber and the second chamber, there is provided a damper (82) that opens and closes a communication port between the first chamber and the second chamber. An introduction duct (86) that opens above the bell mouth (24) is connected to the upper surface of the first chamber. In the damper box (81), when the damper (82) is set in the open state, the first chamber and the second chamber communicate with each other. When the indoor fan (21) is operated in this state, the air blown from the indoor fan (21) flows into the dust collecting container (60) through the introduction duct (86) and the damper box (81). Dust in the collection container (60) is conveyed to a dust storage box (90) described later. The damper (82) is set to a closed state during the air conditioning operation.

  Further, a suction duct (87) communicating with the insertion port (18) is connected to the lower surface of the second chamber of the damper box (81). When the vacuum cleaner is operated with the dust suction port of the vacuum cleaner connected to the insertion port (18), the dust in the dust storage box (90) and the dust collection container (60) is sucked by the vacuum cleaner.

  The dust storage box (90) is disposed below the suction filter (30). The dust storage box (90) is connected to the dust collection container (60) via the transfer duct (88). The dust storage box (90) is formed with an exhaust port (91) for discharging the air in the dust storage box (90) to the outside. A filter (92) is attached to the exhaust port (91). The exhaust port (91) is connected to the exhaust passage (19) formed in the lower casing (10b) and communicates with the outside of the casing (20).

  In the dust storage box (90), when dust is conveyed by air from the dust collection container (60), the air inside thereof is discharged from the exhaust passage (19) through the exhaust port (91). Further, when dust is discharged from the dust storage box (90) by suction by a vacuum cleaner, external air flows into the dust storage box (90) from the exhaust passage (19) through the exhaust port (91).

  In this embodiment, as shown in FIG. 5, the lighting part (26) which lights up during driving | running | working is provided in one of the corner panels (45). The lighting unit (26) includes a light emitting unit (27) and a light transmitting unit (28) as shown in FIG.

  The light emitting part (27) is provided on the back side of the corner panel (45). The light emitting part (27) is composed of three LEDs (light emitting diodes). Three LEDs are juxtaposed in the horizontal direction. Two of the LEDs are green LEDs that emit green light, and the other one is a red LED that emits red light. Each LED of the light emitting unit (27) is connected to an operation control unit that controls the operation of the indoor unit (1). The operation control unit is arranged in a control box (32) provided on the lower side of the partition plate (25) of the lower casing (10b).

  The light transmission part (28) is comprised by the member made from a transparent acrylic resin. The light transmission part (28) is provided so that a part thereof is exposed to the indoor space. Specifically, the light transmission part (28) is formed in a curved plate shape that spreads from one end side toward the other end side. The light transmission part (28) is attached to the corner panel (45) such that one end side faces the light emitting part (27) and the other end side is exposed to the indoor space. The other end side of the light transmission part (28) is fitted into a notch part formed on the inner side (the outlet (14) side) of the corner panel (45). As a result, the other end side of the light transmission part (28) is exposed from the front side and the inner side of the corner panel (45). Three grooves are formed along the inner surface of the corner panel (45) in the first exposed surface (28a) exposed from the front side of the corner panel (45) in the light transmission portion (28). These three grooves constitute the uneven portion (37).

  In a state where the corner panel (45) is attached to the decorative panel (11), as shown in FIG. 7, the inner surface of the corner panel (45) becomes a stepped surface of the stepped portion (35) and is exposed to the indoor space. For this reason, the other end side of the light transmission part (28) is exposed to the indoor space from the step surface and the lower cross section that sandwich the lower end corner of the step part (35). The other end side of the light transmission part (28) is not only the first exposed surface (28a) which is the lower step surface of the step part (35) but also the inner surface of the corner panel (45) which is the step surface of the step part (35). The exposed surface on the side is also exposed to the indoor space. The exposed surface on the inner surface side of the corner panel (45) constitutes a second exposed surface (28b). The first exposed surface (28a) and the second exposed surface (28b) are bent along the air outlet (14).

  In addition, the first exposed surface (28a) and the second exposed surface (28b) are painted in the same color as the decorative panel (11). The same paint as the decorative panel (11) is used for painting. For this reason, the lighting part (26) being turned off is less noticeable. The thickness of the coating film is considerably thin so as not to prevent light transmission from the first exposed surface (28a) and the second exposed surface (28b) as much as possible.

  In the lighting part (26), the light emitted from the light emitting part (27) enters from one end side of the light transmitting part (28). The light incident on the light transmission part (28) is reflected by the inner surface of the light transmission part (28) and is emitted from the first exposed surface (28a) and the second exposed surface (28b) to the indoor space. Since the light transmission part (28) has a shape spreading from one end side toward the other end side, the light from the light emitting part (27) is diffused when passing through the light transmission part (28).

  The operation control unit is configured to control whether or not the light emitting unit (27) of the lighting unit (26) is lit. Specifically, an operation control part supplies electric power to both green LED of a light emission part (27) during an air-conditioning driving | operation of an indoor unit (1), and makes both green LED light. Moreover, an operation control part supplies electric power to both green LED of a light emission part (27) during a cleaning driving | operation, and makes both the green LED light. In addition, when the operation control unit detects an abnormality in the components of the air conditioner (compressor, expansion valve, indoor fan (21), etc.), it supplies power to the red LED of the light emitting unit (27), The red LED is turned on.

-Effect of the embodiment-
In the present embodiment, light is emitted from the lighting unit (26) along the air outlet (14) of the casing (20) during operation. For this reason, the occupant can recognize whether or not the vehicle is in operation based on whether or not light is emitted from the lighting unit (26). That is, the occupant can recognize whether or not the user is driving by visual observation. In particular, in this embodiment, the lighting part (26) is exposed along the blower outlet (14). For this reason, since light is emitted from a relatively wide area during operation, the occupant can recognize whether the operation is in progress or not even if it is slightly away from the indoor unit. Therefore, it is possible to suppress forgetting to turn off the power without noticing that the occupant is in operation, and energy saving can be achieved.

  Moreover, according to this embodiment, since the lighting part (26) is exposed from the lower surface of the casing (20), the occupant visually recognizes the lighting part (26) from all directions with respect to the indoor unit (1). can do. For this reason, the occupant can recognize whether or not the vehicle is in operation in any direction with respect to the indoor unit (1).

  Moreover, in this embodiment, the lighting part (26) is provided in the corner part of the decorative panel (11) where the comparatively wide area | region which faces the space of a ceiling back exists in the back side. For this reason, a lighting part (26) can be provided, without affecting the ceiling board (16) which overlaps with a decorative panel (11).

  Moreover, according to this embodiment, since the corner panel (45) provided with the lighting part (26) is detachable, the lighting part (26) can be removed without removing the decorative panel (11). Can do. For this reason, the maintenance of the lighting part (26) can be performed relatively easily.

  In the present embodiment, since the lighting part (26) is provided so as to be exposed from the upper surface and the side surface sandwiching the lower corner of the step formed on the lower surface of the casing (20), the lighting part (26) Light is emitted at a wide angle. For this reason, since the lighting part (26) in lighting becomes more conspicuous, it can be made easy to notice that the occupant is driving.

  In the present embodiment, the corner panel (45) is inclined so as to approach the ceiling plate (16) as it approaches the outer peripheral side. For this reason, for example, when the lighting part (26) is provided so as to be exposed from the inclined surface of the corner panel (45), it becomes difficult to visually recognize the lighting part (26) from the position opposite to the corner panel (45). . On the other hand, in this embodiment, the lighting part (26) is exposed from the inner surface side and the lower surface side of the corner panel (45). Therefore, the lighting part (26) can be visually recognized from all directions.

  In the present embodiment, light is emitted from the side surface of the stepped portion (35) of the curved corner portion. Therefore, for example, it is possible to visually recognize light from a wider angle than when light is emitted from the side surface of the step portion (35) of the linear portion along the side of the decorative panel (11).

-Modification 1 of embodiment-
The indoor unit (1) of the first modification of the present embodiment is configured so that it can be set by the remote control (48) whether or not the lighting unit (26) is lit during the air conditioning operation and the cleaning operation. Yes.

  Specifically, the operation control unit does not light the light emitting unit (27) during the air conditioning operation of the indoor unit (1) and the first setting for lighting the light emitting unit (27) during the air conditioning operation of the indoor unit (1). The second setting can be set. The operation control unit switches between the first setting and the second setting by an input from the remote control (48) shown in FIG. If it is set to the 1st setting, an operation control part will light both green LED of a light emission part (27) during an air-conditioning operation of an indoor unit (1). Even if the operation control unit is set to the second setting, the red LED of the light emitting unit (27) is turned on when an abnormality of the components of the air conditioner is detected during the air conditioning operation.

  The operation control unit is configured to be settable to a third setting for lighting the light emitting unit (27) during the cleaning operation and a fourth setting for not lighting the light emitting unit (27) during the cleaning operation. The operation control unit switches between the third setting and the fourth setting by an input from the remote control (48). If the operation control unit is set to the third setting, both the green LEDs of the light emitting unit (27) are turned on during the cleaning operation. Even if the operation control unit is set to the fourth setting, the red LED of the light emitting unit (27) is turned on when an abnormality of the components of the air conditioner is detected during the cleaning operation.

  In the present embodiment, a first lighting operation button (54) for switching the operation control unit between the first setting and the second setting on the remote controller (48) for the user to input on / off of the air conditioning operation, A second lighting operation button (55) for switching the operation control unit between the third setting and the fourth setting is provided. In the operation control unit, every time the user presses the first lighting operation button (54), the setting is switched between the first setting and the second setting, and every time the user presses the second lighting operation button (55). The setting is switched between the third setting and the fourth setting. According to the first lighting operation button (54), the user can select whether or not to turn on the lighting unit (26) during the air conditioning operation. According to the second lighting operation button (55), the user can select whether or not to light the lighting part (26) during the cleaning operation. In addition, the said operation control part hold | maintains the setting of whether it makes it light even while the power supply of an air conditioning apparatus is OFF.

-Modification 2 of embodiment-
In the second modification of the present embodiment, the lighting unit (26) is used to make the user recognize that the dust collection container (60) and the dust storage box (90) must be cleaned.

  Specifically, as shown in FIG. 8, the dust collection container (60) is provided with a detection sensor (41) constituted by an optical sensor. The detection sensor (41) includes a pair of light emitting LEDs (72) and a phototransistor (73) installed at the same height. The portion corresponding to the light emitting LED (72) and the phototransistor (73) in the lower wall surface of the dust collecting container (60) is constituted by the first transparent window (64) and the second transparent window (65). Has been. In the detection sensor (41), the phototransistor (73) detects the luminous intensity of the light that has passed through the first transparent window (64) and the second transparent window (65) in order from the light emitting LED (72). In the phototransistor (73), the greater the amount of dust stored, the lower the detected light intensity. The light intensity detected by the phototransistor (73) is output to the operation control unit.

  An operation control part will light the red LED of a lighting part (26), if it will be in the 1st state in which the luminous intensity received from the phototransistor (73) became below predetermined value. That is, when the operation control unit detects that the dust storage box (90) is full and the amount of dust in the dust collection container (60) is increased to some extent, the red LED of the lighting unit (26) is turned on. Light up.

  Further, the operation control unit is provided with a timer for measuring the accumulated operation time of the indoor fan (21). The set time of the timer is set to one year, for example. When the measured time of the timer reaches the set time, the operation control unit performs a “display for prompting the user to clean the dust collecting container (60)” on the remote controller (48).

  Further, the operation control unit is in a second state in which the accumulated operation time of the indoor fan (21) from the time when the first state is reached reaches a time obtained by multiplying the set time of the timer by a first coefficient (for example, 0.04). Then, the red LED of the light emitting section (27) blinks. Further, the operation control unit is in a third state in which the accumulated operation time of the indoor fan (21) from the time when the first state is reached reaches a time obtained by multiplying the set time of the timer by a second coefficient (for example, 0.08). Then, the red LED of the light emitting unit (27) blinks again. The second coefficient is larger than the first coefficient.

<< Other Embodiments >>
About the said embodiment, it is good also as following structures.

  About the said embodiment, you may provide a lighting part (26) so that it may expose along the part extended along four sides among blower outlets (14). Moreover, you may provide a lighting part (26) so that it may be exposed along the inner side of a blower outlet (14).

  In the above embodiment, the indoor unit (1) may be a wall-hanging type that is often used in general households.

  Moreover, about the said embodiment, the indoor unit (1) may be comprised so that a lighting part (26) may light intermittently (that is, it blinks) during an air conditioning operation or a cleaning operation. In this case, the operation control unit blinks the light emitting unit (27) during the air conditioning operation when the first setting is set, and the light emitting unit (27) during the cleaning operation when the third setting is set. 27) blinks.

  Moreover, about the said embodiment, the indoor unit (1) may not have a cleaning function.

  Moreover, about the said embodiment, the indoor unit (1) may be comprised so that the brightness of the lighting part (26) can be adjusted.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or its use.

  As described above, the present invention relates to an indoor unit of an air conditioner installed on a ceiling.

It is a longitudinal cross-sectional view of the indoor unit which concerns on this embodiment. It is a horizontal sectional view of the indoor unit concerning this embodiment. It is a perspective view at the time of seeing the decorative panel which concerns on this embodiment from diagonally downward. It is a perspective view at the time of seeing the lower casing which concerns on this embodiment from diagonally downward. It is a perspective view at the time of seeing the corner panel which concerns on this embodiment from diagonally downward. It is a perspective view at the time of seeing the corner panel which concerns on this embodiment from diagonally upward. It is a perspective view at the time of seeing the corner panel attached to the decorative panel which concerns on this embodiment from diagonally downward. It is a schematic block diagram of the remote control which concerns on the modification 1 of this embodiment. It is sectional drawing of the dust storage container which concerns on the modification 2 of this embodiment.

Explanation of symbols

11 decorative panel 26 lighting part 45 corner panel 35 step part 28a first exposed part 28b second exposed part

Claims (7)

An indoor unit of an air conditioner in which a casing (20) in which an inlet (13) and an outlet (14) are formed is installed on a ceiling,
The casing (20) is provided with a lighting part (26) that is exposed to the indoor space along the outlet (14) and that is lit to indicate that the indoor unit (1) is in operation. An indoor unit of an air conditioner characterized by that. In claim 1,
The indoor unit of the air conditioner, wherein the lighting part (26) is provided on a lower surface of the casing (20). In claim 2,
While the lower surface of the casing (20) is formed with the air outlet (14) along the entire circumference of the outer periphery thereof,
The indoor unit of the air conditioner, wherein the lighting part (26) is exposed at a corner part on the lower surface of the casing (20). In claim 3,
While the casing (20) is detachably provided with a corner panel (45) that forms a corner portion of the lower surface of the casing (20),
The lighting unit (26) is provided in the corner panel (45), and is an indoor unit of an air conditioner. In any one of Claims 1 thru | or 4,
On the lower surface of the casing (20), a step is formed along the outlet (14),
The indoor unit of an air conditioner, wherein the lighting unit (26) is provided so as to be exposed from both a lower surface and a side surface sandwiching a lower corner of the step. In any one of claims 1 to 5,
The lighting section (26) includes a light emitting section (27) provided on the back side of the lower surface of the casing (20) and a part thereof exposed to the indoor space. An air conditioner indoor unit comprising a light transmission part (28) for transmitting the transmitted light into the indoor space. In claim 6,
An indoor unit of an air conditioner, wherein a surface of the light transmitting portion (28) exposed to the indoor space is coated with the same color as the lower surface of the casing (20).

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