KR20100036919A - Air conditioner and method for controlling air conditioner - Google Patents

Abstract

PURPOSE: An air-conditioner equipped with an air cleaner filtering dusts from inhaled air and a control method of the air-conditioner are provided to prevent the contact between a dust box and a dust cleaning unit when the dust box is elevated. CONSTITUTION: An air-conditioner comprises a main body unit(1), a decorative panel(21), an air cleaner(40), a cleaning unit(51), a dust box(57), an elevating member, a position detection member, and an elevation control member. The air cleaner collects the dust from air inhaled through an intake grill of the decorative panel. The dust cleaning unit scans the lower part of the air filter, and removes dusts from the air filter. If it is detected that the dust cleaning unit is not on top of the dust box by the position detection member, the elevation control member controls the elevating member to move up and down.

Description

Air conditioner and control method of air conditioner {AIR CONDITIONER AND METHOD FOR CONTROLLING AIR CONDITIONER}

The present invention relates to an air conditioner having an air filter for collecting dust in intake air, and a control method of the air conditioner.

Background Art Conventionally, an air conditioner includes a rotary brush for removing dust attached to an air filter, and a dust box for collecting dust removed by the rotary brush, and automatically removes dust attached to the air filter with the rotary brush. At the same time, an air conditioner that facilitates the maintenance and maintenance of the air filter by collecting the removed dust by a dust box has been proposed (see Patent Document 1, for example). The air conditioner by this patent document 1 is equipped with the suction grille supported so that the main body unit (case body) of the air conditioner can be lifted, and this suction grill is provided with the structure which provided the said rotary brush and the dust box. have.

[Patent Document 1] Japanese Unexamined Patent Publication No. 2007-40689.

However, in the air conditioner provided with the member which can lift up and down with respect to the main body unit like the air conditioner of patent document 1, when this member raises and lowers, unintentional contact of this member and another member provided in the main body unit is prevented. Need to be prevented.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and in an air conditioner having a member that can be lifted with respect to a main body unit, an unintentional contact between this member and another member provided in the main body unit during the lifting and lowering of this member. An object of the present invention is to provide an air conditioner and a control method of the air conditioner.

In order to achieve the above object, the present invention provides an air conditioner having a main body unit having a heat exchanger and a blower, and a decorative panel disposed below the main body unit, wherein the suction grill of the decorative panel is placed in the main body unit. And an air filter for collecting dust in the air sucked through the air filter, and a removal device for scanning the lower surface of the air filter to remove dust attached to the air filter, wherein the dust removed by the removal device is removed. A dust box which is removed from the dust box, lift means for supporting the dust box in a liftable manner with respect to the air filter and the removal device, and a position detection for detecting that the removal device is not located above the dust box. Means and the position detecting means, the removal device is not located above the dust box. If it is to be detected, characterized in that it comprises a lifting controlling means for lifting possibly controls said elevating means.

Here, the dust box removes the dust removed by the removal device from this removal device and accumulates. When dust is transferred from the removal device to the dust box, the position in the vertical direction between the removal device and the dust box is close to each other. Alternatively, dust is transferred while the removal device and the dust box are engaged in the vertical direction. Therefore, when the dust box is raised and lowered in the case where the removal apparatus which is a member provided in the main body unit is located above the dust box which is a member which can raise / lower with respect to a main body unit, a dust box and a removal apparatus contact in the state which it did not intend. There is a possibility.

According to the said structure, when it is detected that the removal apparatus provided in the main body unit is not located above the dust box which is a member which can raise / lower with respect to a main body unit, the dust box can be lifted and lowered by the lifting means, so that the dust box At the time of elevating, it is possible to reliably prevent contact between the dust box and the removal device, and prevent unintentional contact between the elevable member and the member provided in the main body unit with respect to the main body unit.

Here, in the air conditioner of the present invention, the removal device is controlled to be located at a standby position set at a position deviated from an upper side of the dust box while the dust attached to the air filter is not removed. The detection means may detect that the removal device is not located above the dust box by detecting that the removal device is located at the standby position.

According to this configuration, it is possible to reliably detect that the removal device is not located above the dust box by detecting that the removal device is located at the standby position set at a position deviated from the top of the dust box.

Moreover, in the air conditioner of the said invention, the scan start time which starts scanning of the said removal apparatus is comprised so that setting is possible, and the said lift control means raises and lowers the said dust box during the predetermined time period containing the said scan start time. Lifting and lowering of the dust box by means may be prohibited.

According to this structure, the lifting and lowering of the dust box in the predetermined time period including the scanning start time is prohibited. Therefore, when the current time reaches the scanning start time and the removal apparatus scans automatically, the dust box is lifted and lifted during the scanning of the removal apparatus. Here, when the removal apparatus is scanning, the removal apparatus may be located above the dust box in the scanning process. For this reason, unintentional contact of the removal apparatus and the dust box may occur when the dust box is lifted and lowered during the scanning of the removal apparatus. However, according to the above configuration, when the removal apparatus scans automatically when the scanning start time has been reached, since the lifting and lowering of the dust box while the removal apparatus is scanning is prohibited, the removal apparatus automatically scans. It is possible to reliably prevent the removal device and the dust box from causing unintended contact.

Moreover, in order to achieve the said objective, this invention is a control method of the air conditioner provided with the main body unit which has a heat exchanger and a blower, and the makeup panel arrange | positioned under this main body unit, The said makeup And an air filter for collecting dust in the air sucked through the suction grille of the panel, and a removal device for scanning the lower surface of the air filter to remove dust attached to the air filter. And a dust box in which dust is transferred from the removal device and integrated therein, and lifting means for supporting the dust box to be liftable relative to the air filter and the removal device, wherein the removal device is located above the dust box. Is detected, that the removal device is not located above the dust box, If present, the elevating means is controlled to be capable of elevating.

According to this control method, when it is detected that the removal apparatus provided in the main body unit is not located above the dust box which is a member which can move up and down with respect to the main body unit, the dust box can be lifted and lowered by the lifting means. At the time of elevating, the contact between the dust box and the removal device can be reliably prevented, and unintentional contact between the member that can be lifted and lowered with respect to the main body unit can be prevented.

According to the present invention, when the dust box is raised and lowered, it is possible to reliably prevent contact between the dust box and the removal device, and prevent unintentional contact between the member that can be lifted and lowered with respect to the body unit and the member provided in the body unit. have.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to drawings.

1 is a perspective view of a ceiling embedded air conditioner 100 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the ceiling embedded air conditioner 100. 3 is a sectional view of the ceiling embedded air conditioner 100.

As shown in FIGS. 1 to 3, the ceiling embedded air conditioner 100 has a main body unit 1 made of sheet metal formed in a box shape, the main body unit 1, the filter chamber 20, The makeup panel 21 is constructed by being stacked in three stages.

As shown in FIG. 1, several hanging metal fittings 1B are provided in the outer side surface of the main-body unit 1, and each hanging metal fittings 1B has a ceiling surface (as shown in FIG. 3). A hanging bolt 2 fixed to 109 is fixed by a nut 4 (FIG. 1), and through these hanging bolts 2, the ceiling embedded air conditioner 100 is suspended from the ceiling surface 109. Is installed. In this case, the decorative panel 21 of the ceiling-embedded air conditioner 100 is arranged in the ceiling plate 112 provided below the ceiling surface 109 via the ceiling backside space 111, and is to be manufactured. I) are exposed.

As shown in FIG. 3, inside the main body unit 1, inside the side plate 1A and the ceiling surface, the heat insulating material 3 made of foamed styrol is arrange | positioned over almost the whole surface, and this heat insulating material 3 of The blower 9 and the heat exchanger 11 are accommodated inside.

The blower 9 is comprised from the motor 5 arrange | positioned with the shaft downward, and the turbo fan 7 attached to the shaft of the motor 5. The heat exchanger 11 is a plate fin heat exchanger 11 formed into a pentagonal shape as viewed from the upper surface thereof, and is arranged to surround the blower 9.

Under the heat exchanger 11, a drain pan 13 made of synthetic resin such as foamed plastic resin is disposed so as to cover the lower surface 11A of the heat exchanger 11, and the drain plate 13 is disposed. ), A drain pump (not shown) for discharging the drainage to the outside is provided.

The drain plate 13 is disposed to be in contact with the inner surface of the side plate 1A of the main body unit 1, the suction opening 14 is opened at the center of the drain plate 13, and at the peripheral edge thereof, a heat exchanger ( A blowout opening 15 for passing the exhaust of the blower 9 which has passed through 11 is formed. At the upper part of the suction opening 14, the nozzle 17 which guides the air of the accommodation chamber which passed the suction opening 14 to the blower 9 is attached. Moreover, various components, such as an indoor unit side control part 120 (FIG. 10), an electrical equipment box (not shown) which accommodated a power supply circuit, etc., are screwed to the drain board 13.

The filter chamber 20 is disposed so as to overlap with the drain plate 13 directly below, and the filter chamber 20 has a ventilation hole 25 communicating with the outlet opening 15 of the drain plate 13 and a suction opening ( A rectangular suction opening 26 communicating with 14 is formed. The suction opening 26 includes a frame portion 26A formed along four sides of the suction opening 26, and the suction portion 26A includes the suction opening 26 as shown in FIGS. 1 and 2. The air filter 40 which collects the dust contained in the air in the to-be-harvested chamber which flows into the main body unit 1 through 26 is inserted. The air filter 40 includes a filter material 41 formed in a mesh shape and a filter support frame 42 formed in a lattice shape to support the filter material 41. The filter support frame 42 is integrally formed.

In this structure, the filter chamber 20 is connected to the air filter 40 on the side where the wind of the air filter 40 blows, ie, the lower surface (collection surface) side of the air filter 40. It is provided with the cleaning mechanism (removal means) 50 which removes the attached dust automatically. This cleaning mechanism 50 is equipped with the brush unit 51 which scans the lower surface of the air filter 40 in the direction shown by the arrow X in FIG. 3, The movement of this brush unit 51 is carried out. When the dust attached to the air filter 40 will be removed. This cleaning mechanism 50 is mentioned later.

The cosmetic panel 21 exposed in the to-be-generated chamber is attached to the lower surface of the filter chamber 20 by screws (not shown). The makeup panel 21 is provided with a suction port 22 for sucking air in the conditioning chamber and a blowout port 23 for taking out the conditioner air that has passed through the heat exchanger 11 into the conditioning chamber. A louver 24 for changing the wind direction is provided. The suction port 22 communicates with the suction opening 26 of the filter chamber 20, and the blowout port 23 is formed in a position and shape communicating with the ventilation hole 25 of the filter chamber 20.

In addition, in the four corners of the makeup panel 21, the makeup panel side opening part 21A is formed in the position corresponded to the hanging metal fitting 1B lower side as shown in FIG. As shown in FIG. 1, the corner panels 21B, 21C, 21D, and 21E are detachably attached to the makeup panel 21 opening 21A to the makeup panel side opening 21A. It is. When positioning or height adjustment of the ceiling-embedded air conditioner 100 is performed, the workers remove the corner panels 21B, 21C, 21D, and 21E to make up the cosmetic panel side opening 21A. , The hand or a tool is inserted into this cosmetic panel side opening 21A to approach the nut 4, and the nut 4 is operated to position and raise the ceiling-embedded air conditioner 100. Adjustment and so on.

4: (A) is a perspective view which looked at the corner panel 21B from the surface among the corner panels 21B-21E, and FIG. 4 (B) is a perspective view which looked at the corner panel 21C from the surface. Here, the surface is a surface facing the harmonic chamber side when the corner panels 21B to 21E are attached to the makeup panel 21.

The corner panel 21B is a corner panel having a function of notifying the state of the suction grill 30. The corner panel 21B is a substantially square plate-like member viewed from the front as shown in Fig. 4 (A), and clicks to engage with an unshown engagement piece provided in the cosmetic panel side opening 21A. 211B is provided. The notification apparatus 212B is provided in the substantially center of the surface of the corner panel 21B, This notification apparatus 212B is equipped with LED 213B-215B. These LEDs 213B to 215B notify the state of the suction grille 30 by emitting light in a predetermined aspect. The light emission aspect of LED 213B-215B is mentioned later. On the engaging click 211B side of the notification device 212B, a light receiving unit 216B for receiving a signal from the remote controller 130 (FIG. 10) is provided. The user operates the remote controller 130 to give various instructions to the ceiling embedded air conditioner 100.

The corner panel 21C is a corner panel having a function of notifying a state of the cleaning mechanism 50 described later. The corner panel 21C is a substantially square plate-like member as seen from the front, as shown in Fig. 4 (B), and clicks to engage with an unshown engagement piece provided in the cosmetic panel side opening 21A. 211C is provided. A notification device 212C is provided at approximately the center of the surface of the corner panel 21B, and the notification device 212C includes LEDs 213C to 215C. These LEDs 213C to 215C notify the state of the cleaning mechanism 50 by emitting light in a predetermined mode. The light emission aspect of LED 213C-215C is mentioned later.

In addition, the makeup panel 21 has a suction grill 30 fitted with the suction port 22 and four suction grilles 30 attached to the strings 36, 37, 38, and 39. There is attached a lifting unit 35 for lifting up and down freely. A suction port 31 is formed at the center of the suction grill 30 to suck indoor air, and the suction port 31 communicates with the suction opening 26 while the suction grill 30 is fitted to the suction port 22. do.

The lifting unit 35 is attached to the inside of the makeup panel 21, that is, the surface of the filter chamber 20 via a sheet metal stay (not shown), and the four hanging strings 36 By unwinding or rewinding () to (39), the suction grille 30 is raised and lowered within a predetermined range.

In the suction grill 30, two hanging strings 36 and 37 are fixed to one side, and two hanging strings 38 and 39 are fixed to the other side. The lifting unit 35 includes a first mechanism (not shown) for releasing and rewinding the lanyards 36 and 37, and a second mechanism for releasing and rewinding the lanyards 38 and 39. (Not shown) and the control board (not shown) which controls these 1st mechanism and 2nd mechanism are accommodated in one case.

One end of each of the hanging strings 36 to 39 is fixed to the rear surface of the suction grill 30, that is, the upper surface in FIG. 1, and the other end is provided with a guide provided on the rear surface of the makeup panel 21. 55 and 56 are horizontally turned and accommodated in the lifting unit 35.

The first mechanism includes a bobbin (not shown) to which the hanging strings 36 and 37 are wound, a gear (not shown) to rotate the bobbin, and a grill lift motor 129 (Fig. 10). The bobbin is rotated in the forward or reverse direction by an electrostatic or reverse operation of the lifting motor, and the hanging and unwinding of the strings 36 and 37 are performed. Similarly, the other ends of the hanging strings 38 and 39 are wound on bobbins (not shown) provided in the second mechanism, and the electrostatic or reverse operation of the motor of the second mechanism is transmitted to the bobbin via a gear. The bobbin is rotated in the forward or reverse direction to unwind or rewind the strings 38 and 39.

In addition, as shown in FIG. 3, the suction grill 30 has one side facing the lifting unit 35 when the suction grill 30 is fitted to the suction port 22 of the makeup panel 21. A dust box 57 is disposed along the other side 30B opposite to 30A. The dust box 57 is the dust removed by the cleaning mechanism 50 to be transferred from the cleaning mechanism 50 to be integrated, and is supported by the suction grill 30 so as to move up and down the suction grill 30. Go up and down.

In this structure, the filter chamber 20 is equipped with the air filter 40 and the cleaning mechanism 50 which removes the dust on this air filter 40, and the dust removed by this cleaning mechanism 50 The dust box 57 which is moved and integrated from the cleaning mechanism 50 is supported by the suction grill 30 so as to be lifted and lowered. For this reason, since the dust box 57 can be raised and lowered with the suction grille 30 in the state which left the air filter 40 and the cleaning mechanism 50 in the filter chamber 20, the load of the lifting unit 35 Can reduce the

The ceiling-embedded air conditioner 100 configured as described above allows the refrigerant supplied from an outdoor unit (not shown) to pass through the heat exchanger 11 to function the heat exchanger 11 as an evaporator or a condenser, as shown in FIG. 3. Similarly, the indoor air of the operation chamber is sucked from the suction port 31 by the operation of the blower 9, and the indoor air is exchanged through the suction opening 26, the suction opening 14, and the nozzle 17. Passed through, it is cooled or heated, and it is set as rough air. Then, the ceiling-embedded air conditioner 100 blows out the roughened air from the blowout port 23 through the blowout opening 15 and the vent hole 25 by the operation of the blower 9, and the blown chamber. Cool or heat it.

Next, the cleaning mechanism 50 will be described.

As shown in FIG. 1, the cleaning mechanism 50 includes a horizontally elongated brush unit 51 extending over the entire width of the air filter 40, and the brush unit 51 with the lower portion of the air filter 40. A pair of guide rails 52L and 52R which are movably supported on the surface are provided. These guide rails 52L and 52R are formed in an elongate prismatic shape, and a rack gear (not shown) is formed on the upper surface of the guide rails 52L and 52R over the entire length of the guide rails 52L and 52R. have. In addition, the guide rails 52L and 52R are connected to the stays 53 and 53 in which both ends are dripped from the frame part 26A of the filter chamber 20, respectively.

The brush unit 51 of the cleaning mechanism 50 scans the whole area of the lower surface of the air filter 40 while the operation of the ceiling-mounted air conditioner 100 is stopped, and the air filter 40 It will automatically remove dust attached to it. Specifically, when the dust removal of the air filter 40 is started, the brush unit 51 located in the standby position H1 shown in FIG. 3 removes the dust attached to the lower surface of the air filter 40. While scanning until reaching the dust moving position H2 from the standby position H1 shown in FIG. 3, it inverts and scans from the dust moving position H2 to the standby position H1, and again waits the position H1 Located in

Here, in the case where the brush unit 51 is located in this waiting position H1, this brush unit 51 flows in from the suction grille 30, and passes through the air filter 40 here. It is set in the position which does not inhibit the flow of air. Specifically, as shown in FIG. 3, at one end of the air filter 40, the lift unit 35 is set above. Then, while the ceiling embedded air conditioner 100 is in operation, the brush unit 51 is controlled to be located at the standby position H1, thereby preventing air from being impeded by the presence of the brush unit 51. do. In addition, the brush unit 51 is controlled to be in the standby position H1 even when the dust of the air filter 40 is not removed, and before and after the dust removal start of the air filter 40 is started. After that, it is set as the structure located in the standby position H1.

In addition, the dust moving position H2 is formed above the dust box 57, and although mentioned later in detail, when the brush unit 51 moves to this dust moving position H2, The dust box 57 is engaged, and the dust collected by the dust box 57 is collected and moved to the dust box 57. In this embodiment, when the brush unit 51 is not located in the dust movement position H2, since the position in the up-down direction of the brush unit 51 and the dust box 57 is different, these brush units 51 are different. ) And the dust box 57 do not contact.

5 is an external perspective view of the brush unit 51, and FIG. 6 is a perspective view showing a state where the upper case is removed from the state of FIG.

The brush unit 51 is provided with the case body 61 arrange | positioned on a pair of guide rail 52L, 52R, as shown in FIG. 5, and this case body 61 is a lower case 62. And the upper case 63 combined with the lower case 62. As shown in FIG. 6, the horizontally long rotating brush 64 extended over the full width of this case body 61 is arrange | positioned at the case body 61, and the upper case 63 is shown in FIG. An opening 63B is formed in the upper surface 63A of the top face) in which the outer circumferential portion of the rotary brush 64 protrudes outward of the case body 61.

The case body 61 includes a brush drive mechanism 65 disposed at one end 61A of the case body 61 to drive the rotation brush 64 to rotate, and the other end of the case body 61. The movement mechanism 66 which is arrange | positioned at the side 61B and moves the said case body 61 on guide rail 52L, 52R is formed.

The brush drive mechanism 65 includes a brush drive motor 71 screwed to the lower case 62 and a pinion accommodated in the lower case 72 and installed on the drive shaft of the brush drive motor 71. (1) the first transmission wheel (73), which cogs to (not shown), the second transmission wheel (74) provided coaxially with the first transmission wheel (73), and the second transmission wheel (74). And a third speed change wheel 75 and a fourth speed change wheel 76 provided coaxially with the third speed change wheel 75, the fourth speed change wheel 76 having one shaft end portion of the rotary brush 64. The gear is engaged with the pinion 77 provided in the shaft. These first shift wheels 73 to 4 shift wheels 76 function as a deceleration wheel for reducing the rotational speed of the brush drive motor 71 to the rotational speed for the rotational brush 64 and at the same time, the rotational brush ( Specifies the direction of rotation (64). The brush drive motor 71 is controlled to rotationally drive in the direction of an arrow A in FIG. 6 (counterclockwise rotation direction), and rotation of the brush drive motor 71 is controlled by the first shift wheels 73 to 4th. Since it is decelerated by the transmission wheel 76 and transmitted to the rotating brush 64, this rotating brush 64 is rotated in the arrow B direction (clockwise direction) in FIG. Thereby, the dust adhered to the air filter 40 is scraped off by the rotation of the air filter 40, and this scraped dust is collected inside the case body 61.

A photo sensor 124 (FIG. 10) is provided near the rotary brush 64. The photo sensor 124 is a reflective photo sensor and includes a light emitting element and a light receiving element. The light emitting element emits light with respect to the rotary brush 64 and receives light reflected by the light receiving element. The chamber side control part 121 mentioned later is connected in signal communication with this photo sensor 124, and the photo sensor 124 outputs a detection value to the chamber side control part 121. As shown in FIG. The chamber side controller 121 outputs the detection value of the photo sensor 124 to the indoor unit side controller 120. And although mentioned later, the brush rotation detection part 120B of the indoor unit side control part 120 determines whether the rotating brush 64 is rotating based on the detection value of the photo sensor 124. FIG.

As shown in FIG. 6, the movement mechanism 66 is accommodated in the movement motor 81 screwed to the lower case 62, and accommodated in the said lower case 72, and attached to the drive shaft of the movement motor 81. As shown in FIG. Coupling to the fifth shifting wheel (82) coaxially engaged with the pinion (not shown), the sixth shifting wheel (83) provided coaxially with the fifth shifting wheel (82), and the sixth shifting wheel (83). A seventh transmission wheel 84, an eighth transmission wheel 85 provided coaxially with the seventh transmission wheel 84, and a ninth transmission wheel 86 that cogs to the eighth transmission wheel 85. And a pinion (10) including a tenth transmission wheel (87) provided coaxially with the ninth transmission wheel (86), wherein the tenth transmission wheel (87) is toothed to the rack gear of one guide rail (52R). And cogwheel with 88). One end of the rotary shaft 89 provided in the widthwise direction of the lower case 62 is connected to the pinion 88, and the other end of the rotary shaft 89 has the same diameter and number of teeth as the pinion 88. The pinion 90 is connected. The pinion 90 is toothed to the rack gear of the other guide rail 52L. As the pinions 88 and 90 rotate on these rack gears, as shown in FIG. 3, the brush unit 51 is one end side of the said air filter 40 along the lower surface of the air filter 40. As shown in FIG. It is possible to move from 40A to the other end side 40B.

The fifth shifting wheels 82 to 10th shifting wheels 87 have a rotational speed suitable for the brush unit 51 moving on the guide rails 52L and 52R with the rotational speed of the motor 81 for movement. It functions as a deceleration wheel to decelerate to the right and at the same time defines the rotational direction of the pinions 88 and 90 which are toothed to the rack gears of the guide rails 52L and 52R.

The motor 81 for movement is controlled to selectively rotate-drive in the arrow C direction (clockwise rotation direction) or the arrow D direction (counterclockwise rotation direction) in FIG. When the moving motor 81 is driven in the direction of an arrow C, the rotation of the moving motor 81 is decelerated via the fifth transmission wheels 82 to the tenth transmission wheel 87 and at the same time in the same rotational direction. It is transmitted to pinions 88 and 90 as it is. As a result, the brush unit 51 moves on the guide rails 52L and 52R in the direction of the arrow X1 (direction toward the standby position H1). Similarly, when the moving motor 81 is driven in the direction of the arrow D, the rotation of the moving motor 81 is the same rotation while being decelerated via the fifth shift wheel 82 to the tenth shift wheel 87. It is transmitted to the pinions 88 and 90 in the direction. As a result, the brush unit 51 moves on the guide rails 52L and 52R in the direction of the arrow X2 (direction toward the dust moving position H2).

As shown in FIG.3 and FIG.5, the limit switch 110L is provided in the edge part of the guide rail 52L by the standby position H1, and the edge part of the guide rail 52R by the standby position H1 side is provided. The limit switch 110R is provided. These limit switches 110L and 110R are switches for detecting whether or not the brush unit 51 is located at the standby position H1, and the case portions 111L and 111R and this case portion 111L. ) And switch portions 112L and 112R protruding from 111R toward the dust movement position H2. When the brush unit 51 is located in the standby position H1, the switch portions 112L and 112R of the limit switches 110L and 110R are pressed together to be in an “on” state (FIG. 7). When the brush unit 51 is not positioned at the standby position H1, the pressing of the switch portions 112L and 112R is opened to enter the " off " state. The limit switches 110L and 110R are connected in signal communication with the chamber side control part 121 (FIG. 10) mentioned later, and the detection value of the limit switches 110L and 110R is chamber side control part 121. (FIG. 10), the chamber side control unit 121 outputs the detected value to the indoor unit side control unit 120.

As described above, since the brush unit 51 is positioned at the standby position H1 during operation of the ceiling-mounted air conditioner 100, the limit switches 110L and 110R are turned on, and the air filter Since the brush unit 51 scans during the dust removal of 40, the limit switches 110L and 110R are turned off.

7 is a side view of the brush unit 51.

As shown in FIG. 7, the brush unit 51 receives a dust scraped (removed) by the rotary brush 64 below the rotary brush 64 and temporarily collects the dust. (Dust collection part) 67 is provided. As shown in FIG. 1, the dust storage chamber 67 protrudes between the guide rails 52L and 52R and extends to the lower surface of the lower case 62 over the width direction of the lower case 62. It is formed integrally.

The dust storage chamber 67 has a lower cover (bottom cover) 68 that can be opened and closed on the lower surface, and the lower cover 68 drops dust accumulated in the dust storage chamber 67 onto the dust box 57. Is open when. The lower lid 68 is hinged via the hinge shaft 69 at the lower edge portion of the side surface 67A of the lifting unit 35 side in the dust storage chamber 67, and is usually inside. The spring is pressurized in the direction of closing so that the dust does not fall.

Moreover, the lower cover 68 is provided with the extending | stretching part 68A which extended toward the hinge axis 69, and this extension part 68A has several triangular protrusion parts 91 which protrude downward. Is formed. These protrusion pieces 91 are provided in substantially the same size at predetermined intervals in the width direction of the dust storage chamber 67, and this dust box is carried out when the brush unit 51 is moved above the dust box 57. As shown in FIG. In contact with 57, it has a function of opening the lower cover 68 against spring force.

FIG. 8 is a sectional side view showing the brush unit 51 and the dust box 57, and FIG. 9 shows the state in which the brush unit 51 has moved to the above-described dust moving position H2 above the dust box 57. As shown in FIG. Side cross section view. 8 and 9 abbreviate | omit descriptions, such as a gear wheel.

As shown in FIG. 8, the dust box 57 is provided with the box main body 92 in which the upper surface was opened and formed in the box shape, and the upper cover 93 which opens and closes the upper surface of this box main body 92 freely. . As shown in FIG. 9, the upper lid 93 is opened when the brush unit 51 moves over the dust box 57, and thus the dust dropped from the dust storage chamber 67 of the brush unit 51 is removed. Receive.

The upper lid 93 is hinged via the hinge shaft 94 at the upper edge portion of the side surface 92A located on the other side 30B side of the suction grill 30 in the box body 92. have. Moreover, the stopper part 92B1 extended in the upper part of the upper lid 93 is formed in the upper edge part of the side surface 92B which opposes the said side surface 92A of the box main body 92. As shown in FIG. The stopper portion 92B1 abuts on the upper lid 93, and restricts the opening of the upper lid 93 to the outside of the box body 92. In addition, the hinge shaft 94 is provided with a spring member 95, and in general, that is, when the brush unit 51 is separated from the dust box 57, dust inside the dust box 57 is removed. The spring is pressurized in the direction of closing the upper cover 93 so as not to be blown up by the wind.

In addition, the upper lid 93 is provided with a plurality of triangular protrusion pieces 96 protruding upward. These protruding pieces 96 are provided in substantially the same size at predetermined intervals in the width direction of the dust box 57, and the brush unit 51 when the brush unit 51 is moved above the dust box 57. A dust accommodating chamber (67), which has a function of opening the upper lid (93) against spring force.

In this structure, the dust box 57 is detachably supported by the suction grill 30. Therefore, when the dust box 57 is attached to the suction grill 30, the dust box 57 moves up and down in accordance with the lifting of the lifting unit 35. As shown in FIG. For this reason, in this embodiment, the lifting unit 35 functions as the lifting means for raising and lowering the dust box 57.

The structure of the dust box 57 with respect to the suction grille 30 will be described in detail. As shown in FIG. 8, the upper surface of the suction grill 30 has a pair of supporting portions for supporting the dust box 57. 32A) and 32B are provided upright at intervals substantially the same as the width | variety of the box main body 92 of the said dust box 57, and the recessed part is formed in the inner surface of these support parts 32A and 32B. 32A1) and 32B1 are formed, respectively. Projections 97 and 98 formed on the side surfaces 92A and 92B of the box body 92 of the dust box 57 are engaged with these recesses 32A1 and 32B1, respectively. This prevents the 57 from being easily detached from the supporting portions 32A and 32B.

When attaching the dust box 57 to the support portions 32A and 32B, the support portions 32A and 32B are formed by pushing the dust box 57 between these support portions 32A and 32B. 8, when the protrusions 97 and 98 are fitted into the recesses 32A1 and 32B1 in Fig. 8, the supporting portions 32A and 32B are in their original states. Since the dust box 57 is restored, the dust box 57 is engaged with the support portions 32A and 32B.

In addition, when removing the dust box 57 from the support part 32A, 32B, the projection part 97 and the recessed part may be bent in one direction of the said support part 32A in the arrow Y direction, for example. The engagement with the 32A1 is released, and the dust box 57 is detached upward. Thereby, the dust box 57 can be easily attached to and detached from the support parts 32A and 32B of the suction grill 30.

Here, the operation | movement at the time of the dust removal of the air filter 40 by the cleaning mechanism 50, and the operation | movement at the time of dust movement to the dust box 57 in dust movement position H2 are demonstrated.

When the moving motor 81 of the cleaning mechanism 50 is operated, the rotation of the moving motor 81 is transmitted to the pinions 88 and 90 via the plurality of gears, and the pinions 88 and ( By the rotation of 90, the brush unit 51 reciprocates on the guide rails 52L and 52R.

In addition, when the brush drive motor 71 is operated, as shown in FIG. 8, the rotation of the brush drive motor 71 is transmitted to the rotation brush 64 via a plurality of shift wheels, and the rotation brush 64. ) Rotates in the direction of an arrow B in the figure. By the rotation of this rotary brush 64, the dust 200 attached to the air filter 40 is scraped off by the rotary brush 64, and is attached to this rotary brush 64. As shown in FIG. The dust peeling plate 58 which extends over the full width of the said rotating brush 64 is attached to the case body 61 below the rotating brush 64. This dust peeling plate 58 has the click part which bends the front-end | tip part in the direction substantially along the outer peripheral surface of the rotating brush 64, and contacts the said rotating brush 64, When the rotating brush 64 rotates, This rotating brush 64 and the said click part contact, the dust 200 attached to the rotating brush 64 is peeled off, and is accommodated in the dust storage chamber 67. As shown in FIG.

The dust 200 accommodated in this dust storage chamber 67 is dropped in this dust box 57, when the dust storage chamber 67 (brush unit 51) moves to dust movement position H2. Specifically, when the brush unit 51 moves above the dust box 57, the protruding pieces 96 formed on the upper lid 93 of the dust box 57 and the dust storage chamber 67 of the brush unit 51 are provided. ) Touches. Since this protrusion piece 96 is provided with the inclined part extended downward toward the brush unit 51, this dust accommodating chamber 67 is a dust box in the state which the inclined part and the dust accommodating chamber 67 abut. Moving toward 57, the protruding piece 96 is pressed in accordance with this moving operation, and the upper lid 93 is opened inward of the box body 92 about the hinge axis 94.

On the other hand, as for the lower cover 68 of the dust storage chamber 67 of the brush unit 51, the protrusion main body 91 formed in the extension part 68A of this lower cover 68 is the box main body of the dust box 57 ( 92). Since this protrusion piece 91 is provided with the quadrangle part extended upwards toward the dust box 57, this dust storage chamber is in the state which the said quadrangle part and the box main body 92 of the dust box 57 contacted. When the 67 moves toward the dust box 57, the protruding piece 91 is pressed in accordance with this moving operation, so that the lower cover 68 is opened outward of the dust storage chamber 67 about the hinge axis 94. do. As a result, the dust 200 in the dust storage chamber 67 is dropped into the box body 92 of the dust box 57 via the upper surface of the upper lid 93 of the dust box 57.

When dust accumulates in the dust box 57, the dust box 57 is lowered by lowering the suction grill 30. FIG. Since the dust box 57 is detachably disposed on the suction grill 30, the dust box 57 can be detached from the suction grill 30 to easily dispose of dust in the dust box 57. have. The dust box 57 may be lowered when the operation time of the ceiling-mounted air conditioner 100 reaches a predetermined time, and the dust box 57 may be provided with a full quantity sensor that detects the amount of dust in the dust box 57. It may be provided and the dust box 57 may be lowered when this full capacity sensor is operated.

10 is a block diagram showing the functional configuration of the ceiling embedded air conditioner (100).

As shown in this figure, the ceiling-mounted air conditioner 100 is provided in the indoor unit side control part 120 accommodated in the electrical equipment box provided in the drain board 13 of the main body unit 1, and the filter chamber 20. The chamber side control part 121 and the grill side control part 122 provided in the makeup panel 21 are provided, and these control parts are connected by signal communication.

The indoor unit side control part 120 centrally controls each part of the ceiling-mounted air conditioner 100, and is a CPU (Central Processing Unit) as a calculation execution means, a basic control program to be executed by this CPU, or this basic control. ROM (Read Only Memory) for non-volatile storage of data related to programs, RAM (Random Access Memory) for temporarily storing programs to be executed on the CPU or data related to the program, and other peripheral circuits Doing. Moreover, the indoor unit side control part 120 performs various time-keeping operations and time-of-day clocking based on the reference clock produced by the oscillator which is not shown in figure.

The indoor unit side control part 120 is equipped with the brush unit position detection part 120A (position detection means), and the brush rotation detection part 120B.

The brush unit position detection unit 120A determines whether the brush unit 51 is located at the standby position H1 based on the output values of the limit switches 110L and 110R. Specifically, when the brush unit position detection unit 120A outputs a signal indicating a state from both the limit switches 110L and 110R, the brush unit 51 is positioned at the standby position H1. If at least one of the limit switches 110L and 110R is outputting a signal indicating an off state from one side, it is determined that the brush unit 51 is not located at the standby position H1. do. Thus, the brush unit position detection part 120A considers that the brush unit 51 is located in the standby position H1 only when both of the limit switches 110L and 110R are on, and thus the brush unit Even if the deviation | deviation with respect to a scanning direction arises in 51, and the brush unit 51 is not normally located in the standby position H1, this can be detected. As described above, the detection values of the limit switches 110L and 110R are output to the chamber side controller 121, and the chamber side controller 121 is output to the indoor unit side controller 120.

As described above, the standby position H1 and the dust movement position H2 are set at different positions. For this reason, while it is detected by the brush unit position detection part 120A that the brush unit 51 is located in the standby position H1, the brush unit 51 may not be reliably located in the dust movement position H2. do. The brush unit position detection unit 120A detects that the brush unit 51 is located at the standby position H1, so that the brush unit 51 is not positioned at the dust moving position H2 above the dust box 57. It serves as a position detecting means for detecting the thing. In this way, 120 A of brush unit position detection parts detect that the brush unit 51 is located in the standby position H1, and the brush unit 51 moves to the dust movement position H2 above the dust box 57. By setting it as the structure which detects that it is not located, it can reliably detect that the brush unit 51 is not located above the dust box 57.

The brush rotation detection unit 120B determines whether or not the rotation brush 64 is rotating based on the output value of the photo sensor 124. Specifically, after the rotation of the rotation brush 64 is started, the brush rotation detection unit 120B calculates the rate of change of the light reflected by the rotation brush 64 based on the detection value of the photo sensor 124, and calculates the result. Based on the result, it is determined whether the rotary brush 64 is rotating. As described above, the detected value of the photo sensor 124 is output to the chamber side controller 121, and the chamber side controller 121 is output to the indoor unit side controller 120.

The storage unit 125 is connected to the indoor unit side control unit 120. This storage section 125 is constituted by an EEPROM or a flash memory, and stores various data in a rewritable manner under the control of the indoor unit side control section 120. In the storage unit 125, the end time table 125A, the start time table 125B, and the accumulated time table 125C are stored, but these tables will be described later.

The grill side control part 122 is provided in the makeup panel 21, and performs control of the lifting grill 30, etc. under the control of the indoor unit side control part 120, and the motor driver 127 and an LED board | substrate. 128 and the light receiving portion 216B are connected. In addition, the grill side control unit 122 includes a CPU, a ROM, a RAM, and a peripheral circuit, similarly to the indoor unit side control unit 120.

The motor driver 127 is connected to a grill lift motor 129 for raising and lowering the suction grill 30, and supplies a driving current to the grill lift motor 129 under the control of the grill side controller 122. Drive control of the grill lift motor 129 is performed. In addition, when the grill lifting motor 129 is comprised with the stepping motor, the motor driver 127 outputs a drive pulse with respect to the said motor, and operates the said motor by a required amount.

The LED substrate 128 is connected to the LEDs 213B, 214B, and 215B provided in the notification device 212B for notifying the state of the suction grill 30, and under the control of the grill side controller 122. Light emission control of these LEDs is performed. Here, the light emission aspect of LED 213B, 214B, and 215B of the notification apparatus 212B in this embodiment is demonstrated.

The LED 213B notifies the suction grill 30 that an abnormality has occurred. Specifically, lifting and lowering of the suction grille 30 is not normally performed or the suction grille 30 is not normally fitted at a predetermined position at the suction port 22 of the makeup panel 21. In this case, by blinking, the suction grill 30 is notified that any abnormality has occurred. As a detection means for detecting that an abnormality has occurred in the suction grille 30, a mechanism using a known technique such as a limit switch or a photo sensor can be used.

LED 214B notifies the current state of suction grill 30. Specifically, when the suction grille 30 is fitted to the suction port 22 of the makeup panel 21, the lamp is turned off, and when the suction grille 30 is lowered, it blinks, and the suction grille 30 is Lights up when rising. In addition, in this embodiment, since the dust box 57 is supported by the suction grille 30, the state of the dust box 57 is also notified by notifying the state of the suction grille 30.

The LED 215B is in the case of removing dust of the air filter 40 by the cleaning mechanism 50 when the user operated the remote controller 130 to instruct the drop of the suction grill 30, or When the current time is in the lift prohibition time zone described later, the lamp blinks. In the present embodiment, as described later, during the removal of the dust of the air filter 40 by the cleaning mechanism 50, and when the current time is within the range of the lifting prohibition time, lifting of the suction grill 30 is performed. By prohibiting the lifting and lowering of the dust box 57, the user can grasp that the lifting and lowering of the dust box 57 is prohibited by visually confirming that the LED 214C is blinking.

As described above, the light receiving unit 216B receives the signal transmitted from the remote controller 130 and outputs the signal to the grill side control unit 122. The grill side control unit 122 outputs the signal input from the light receiving unit 216B to the indoor unit side control unit 120. The indoor unit side control part 120 controls each part of the ceiling embedded type air conditioner 100 based on the signal input from the grill side control part 122.

The remote controller 130 is provided with the intake grill 30 in addition to instructions for controlling the air such as starting / stopping the operation of the ceiling-mounted air conditioner 100, switching the cooling operation / heating operation, setting the set temperature, and the like. It is a structure which can give the instruction | indication of descent, the instruction | indication of the rise of the suction grille 30, and the removal start instruction | indication of the dust of the air filter 40 by the cleaning mechanism 50. In addition, in this embodiment, the remote controller 130 has the structure which can instruct | indicate the condition which starts removal of the dust of the air filter 40 by the cleaning mechanism 50. As shown in FIG.

FIG. 11A is a diagram schematically showing a time table 125A after the end, FIG. 11B is a diagram schematically showing the start time table 125B, and FIG. 11C is a cumulative time. It is a figure which shows the table 125C typically.

In the present embodiment, the elapsed time T1 set in advance after the operation of the ceiling-embedded air conditioner 100 ends after the dust removal start of the air filter 40 by the cleaning mechanism 50 has elapsed. Condition (hereinafter referred to as "condition A") can be selected, and the user can operate the remote controller 130 to set the elapsed time T1 under the condition A. FIG. When the user operates the remote controller 130 to set the elapsed time T1, a signal indicating the elapsed time T1 is received from the remote controller 130 via the light receiving unit 216B and the grill side control unit 122. It is output to the side control part 120. The indoor unit side control unit 120 determines the value of the end time table 125A (FIG. 11A) stored in the storage unit 125 based on the signal input from the grill side control unit 122. It rewrites to the value which showed the indicated elapsed time T1. And when condition A is selected as the removal start condition of the dust of the air filter 40, the indoor unit side control part 120 will time-lapse time when the operation | movement of the ceiling-mounted type air conditioner 100 is stopped. At the same time, when the elapsed time reaches the elapsed time T1 stored in the time table 125A after the end, referring to the time table 125A after the end, the air filter 40 of the air filter 40 is cleaned by the cleaning mechanism 50. Initiate dust removal.

Moreover, as a removal start condition of the dust of the air filter 40 by the cleaning mechanism 50, the condition (hereinafter, "condition B") that the present time reached | attained time T2 (injection start time) which was preset. The user can set the time T2 under condition B by operating the remote controller 130. When the user operates the remote controller 130 to set the time T2, a signal indicating the time T2 is transmitted from the remote controller 130 via the light receiver 216B and the grill side controller 122. It is output to the fisherman 120. The indoor unit side control part 120 measures the value of the start time table 125B (FIG. 11 (B)) stored in the memory | storage part 125 based on the signal input from the grill side control part 122, and time (T2). Rewrite as a value indicating). And when condition B is selected as the dust removal start condition of the air filter 40, the indoor unit side control part 120 will refer to the start time table 125B, and the present time will be made into the start time table 125B. When the stored time is reached, the dust of the air filter 40 is started by the cleaning mechanism 50.

Moreover, as a condition of starting removal of the dust of the air filter 40 by the cleaning mechanism 50, the condition of when the cumulative operation time of the ceiling-mounted air conditioner 100 reached the preset cumulative time T3 ( Hereinafter, "condition C" can be selected, and the user can operate the remote controller 130 to set the cumulative time T3 under the condition C. FIG. When the user operates the remote controller 130 to set the cumulative time T3, a signal indicating the cumulative time T3 from the remote controller 130 is transmitted to the indoor unit via the light receiving unit 216B and the grill side controller 122. It is output to the side control part 120. The indoor unit control unit 120 stores the accumulated time table 125C (FIG. 11C) stored in the storage unit 125 based on the signal input from the grill side control unit 122. Rewrite to a value indicating T3). And when condition C is selected as the dust removal start condition of the air filter 40, the indoor unit side control part 120 will display the accumulated operation time of the ceiling-mounted air conditioner 100, and will be the memory | storage part 125 ) And the air filter 40 by the cleaning mechanism 50 when the current cumulative time reaches the time stored in the cumulative time table 125C with reference to the cumulative time table 125C. Initiate the removal of dust. In the case where this condition C is selected, when the cumulative operation time of the ceiling-mounted air conditioner 100 reaches the cumulative time T3, the dust of the air filter 40 is automatically started. Can improve.

In addition, the user may operate the remote controller 130 to select the above-described conditions A, B, and C, and may not select any of the conditions.

However, returning to FIG. 10, the chamber side control unit 121 is installed in the filter chamber 20, and controls the cleaning mechanism 50 and the like under the control of the indoor unit side control unit 120. 131, the LED substrate 132, the limit switches 110L and 110R, and the photo sensor 124 are connected. Moreover, the chamber side control part 121 is equipped with CPU, ROM, RAM, and a peripheral circuit similarly to the indoor unit side control part 120. FIG.

The motor driver 131 is connected to the brush drive motor 71 and the movement motor 81 mentioned above, and supplies a drive current to these motors under the control of the grill side control part 122, and performs drive control. Moreover, when either the brush drive motor 71 or the movement motor 81 is comprised by the stepping motor, the motor driver 131 outputs a drive pulse with respect to the motor, and operates a motor by a required amount.

The LED substrate 132 is connected to the LEDs 213C, 214C, and 215C provided in the notification device 212C for notifying the state of the cleaning mechanism 50, and under the control of the chamber side control unit 121. Light emission control of these LEDs is performed. Here, the light emission aspect of LED 213C, 214C, and 215C of the notification apparatus 212C in this embodiment is demonstrated.

The LED 213C notifies the cleaning mechanism 50 that an abnormality has occurred. Specifically, when the brush rotation detection unit 120B detects that the rotating brush 64 is not rotating normally or when the scanning of the brush unit 51 is not performed normally, it blinks. The cleaning mechanism 50 is notified that any abnormality has occurred.

The LED 214C notifies whether the brush unit 51 of the cleaning mechanism 50 is located at the standby position H1. Specifically, when the brush unit 51 is located at the standby position H1, it turns off, and when the brush unit 51 is not located at the standby position H1, it blinks. According to this configuration, by referring to the LED 214C, the user can easily and quickly grasp that the brush unit 51 is not located at the standby position H1. In addition, the brush unit position detection part 120A of the indoor unit side control part 120 detects whether the brush unit 51 is located in the standby position H1 as mentioned above.

The LED 215C notifies that the dust removal of the air filter 40 by the cleaning mechanism 50 has ended. Specifically, when the dust removal of the air filter 40 is complete | finished, it blinks for a fixed time.

Next, the operation of the ceiling embedded air conditioner 100 will be described.

First, operation | movement in the case where the lift of the dust box 57 supported by this suction grill 30 is instruct | indicated by raising / lowering of the suction grill 30 is demonstrated using the flowchart of FIG. In addition, in the following operation | movement, the indoor unit side control part 120 functions as a lift control means. In addition, for the convenience of explanation, what the dust box 57 raises with the lifting and lowering of the suction grill 30 is only called "the dust box 57 raises".

When the lifting and lowering of the dust box 57 is instructed, a signal of that effect is input to the indoor unit side control part 120 (step SA1). Then, the brush unit position detection unit 120A of the indoor unit side control unit 120 determines whether the brush unit 51 is located at the standby position H1 based on the output values of the limit switches 110L and 110R. It is judged whether or not (step SA2). In addition, as described above, when it is detected that the brush unit 51 is located at the standby position H1, the brush unit 51 is not reliably positioned at the dust moving position H2 above the dust box 57. It is not.

When the brush unit 51 is positioned at the standby position H1 (step SA2: YES), that is, when the brush unit 51 is not positioned at the dust movement position H2, the indoor unit side control unit 120, It is determined whether or not the current time is within the range of the lifting prohibition time zone of the suction grill 30 (step SA3). Here, the raising / lowering time zone will be described in detail.

The lifting prohibition time zone means a time zone during which lifting and lowering of the suction grill 30 and the dust box 57 is prohibited. In this embodiment, when the above-mentioned condition B is selected as the removal start condition of the dust of the air filter 40 by the cleaning mechanism 50, the time zone containing time T2 is set as a lift prohibition time zone. do. More specifically, the lift prohibition time zone is set to include a time zone from reaching the time T2 until the dust removal of the air filter 40 starts and ends. For example, when the time T2 which is the dust removal start time of the dust of the air filter 40 is 12:05, and the end time is 12:10, the elevation prohibition time zone is set to 12:00 to 12:15. do. In addition, when condition B is not selected as the removal start condition of the dust of the air filter 40, a lifting prohibition time zone is not set.

When it is determined in step SA3 that the current time is outside the range of the lift prohibition time zone (step SA3: NO), the indoor unit side control unit 120 controls the grill side control unit 122 to move up and down the dust box 57. Permission is granted and the lifting and lowering is performed (step SA4), and the effect is notified (step SA5). Specifically, when the dust box 57 is lowered, the indoor unit side control unit 120 controls the grill side control unit 122 to blink the LED 214B and raise the dust box 57. The indoor unit side control unit 120 controls the grill side control unit 122 to light up the LED 214B. On the other hand, when it is determined that the current time is within the range of the lifting prohibition time zone (step SA3: YES), the indoor unit side control unit 120 prohibits the lifting of the suction grill 30 and the dust box 57 and does not perform the lifting. (Step SA6), the effect thereof is notified (step SA7). Specifically, the indoor unit side control unit 120 controls the grill side control unit 122 to blink the LED 215B. Next, the indoor unit side control part 120 returns a process to step SA2, and determines whether the brush unit 51 is again located in the standby position H1.

On the other hand, when returning to step SA2 and the brush unit 51 is not located in the standby position H1 (step SA2: NO), the indoor unit side control part 120 will perform the suction grill 30 and the dust box 57. The lifting and lowering is prohibited, and the lifting and lowering is not performed (step SA6), and the effect is notified (step SA7). Specifically, the indoor unit side control unit 120 controls the grill side control unit 122 to blink the LED 215B. Next, the indoor unit side control part 120 returns a process to step SA2, and determines again whether the brush unit 51 is located in the standby position H1.

As described above, in the present embodiment, when the brush unit 51 is located at the standby position H1, the indoor unit side control unit 120 allows the dust box 57 to be raised and lowered, and the brush unit 51 is at the standby position. If it is not located at (H1), the indoor unit side control unit 120 prohibits the lifting of the dust box 57. Here, when the suction grille 30 is raised and lowered when the brush unit 51 is located at the dust moving position H2 above the dust box 57, the brush unit 51 and the dust box 57 are not intended. There is a possibility of contact. However, in the present embodiment, when it is detected that the brush unit 51 is located at the standby position H1, that is, not reliably located at the dust moving position H2, the lifting and lowering of the dust box 57 is performed. Since it is permitted, it is possible to prevent inadvertent contact between the brush unit 51 and the dust box 57.

In addition, in this embodiment, when condition B is selected as the dust removal start condition of the air filter 40, the elevation prohibition time zone containing time T2 which is the removal start time of the dust of the air filter 40 is included. , The lifting and lowering of the dust box 57 is prohibited.

Here, when the brush unit 51 is scanning to remove dust from the air filter 40, the brush unit 51 is located at the dust moving position H2 above the dust box 57 during the scanning process. There is a thing. For this reason, when the dust box 57 is raised and lowered during the scanning of the brush unit 51, unintentional contact between the brush unit 51 and the dust box 57 may occur.

However, according to the present embodiment, when the condition B is selected, the dust box 57 while the current time reaches the time T2 and automatically removes dust from the air filter 40. ) Is prohibited, so that unintentional contact between the brush unit 51 and the dust box 57 can be reliably prevented.

In addition, in this embodiment, as shown in the flowchart of FIG. 12, after raising and lowering of the suction grille 30 and the dust box 57 are instructed in step SA1, the brush unit 51 is not located in a standby position H1. If not, the lifting and lowering of the dust box 57 is continuously prohibited. After that, when the brush unit 51 is positioned at the standby position H1, the suction grill 30 and the dust box 57 are allowed to lift and lower. do. Therefore, when the lowering and lowering of the dust box 57 is instructed during the removal of the dust of the air filter 40, after the removal of the dust of the air filter 40 ends, the brush unit 51 is positioned at the standby position H1. Since the dust box 57 is automatically raised and lowered, it is not necessary to instruct the dust box 57 to be raised and lowered, thereby improving user convenience.

Next, operation | movement of the ceiling-mounted air conditioner 100 at the time of the dust removal of the air filter 40 by the cleaning mechanism 50 is demonstrated using the flowchart of FIG. At the start of the operation shown in the flowchart of FIG. 13, it is assumed that dust of the air filter 40 is not removed.

First, the indoor unit side control part 120 starts removal of the dust of the air filter 40 by the cleaning mechanism 50 at predetermined timing (step SB1). As the removal start timing of the dust of the air filter 40, when the start instruction is received via the remote controller 130, or when any one of the above-mentioned conditions A, B, and C is selected as the start condition. In some cases, the selected condition is established. In addition, the time zone for prohibiting dust removal of the air filter 40 by the cleaning mechanism 50 is configured to be settable, and when the current time is within the range of the set time zone, the dust removal is prohibited. You may also In addition, when a predetermined time has not passed since the dust removal of the last air filter 40, it is good also as a structure which prohibits removal of dust. Thereby, dust removal is prevented from being performed continuously in extremely short time, and efficiency of dust removal of the air filter 40 can be aimed at.

When the dust removal of the air filter 40 is started, the brush unit position detection part 120A of the indoor unit side control part 120 determines whether the brush unit 51 is located in the standby position H1 (step) SB2). If the brush unit 51 is not located at the standby position H1 (step SB2: NO), the brush unit 51 which is naturally located at the standby position H1 is not located at the standby position H1. Since there is a possibility that any abnormality has occurred, the indoor unit side control part 120 stops the operation regarding the removal of the dust of the air filter 40, and the cleaning mechanism 50 including the brush unit 51 is stopped. It is notified that an abnormality has occurred (step SB3). Specifically, the chamber side control unit 121 is controlled to blink the LED 213C.

On the other hand, when the brush unit 51 is located in the standby position H1 (step SB2: YES), the indoor unit side control part 120 controls the chamber side control part 121 to operate the brush drive motor 71. Drive control is carried out, and the rotation brush 64 is rotated (step SB4). Next, the brush rotation detection unit 120B of the indoor unit side control unit 120 determines whether the rotary brush 64 is rotating (step SB5). When the rotation brush 64 is not rotating (step SB5: NO), since any abnormality has occurred, the indoor unit side control part 120 stops the operation regarding removal of the dust of the air filter 40, and the effect (Step SB3). Specifically, the chamber side control unit 121 is controlled to blink the LED 213C.

On the other hand, when the rotating brush 64 is rotating (step SB5: YES), the indoor unit side control part 120 controls the chamber side control part 121 to drive-control the moving motor 81, and the brush unit ( 51) (step SB6). In this step SB6, the brush unit 51 scans from the standby position H1 to the dust moving position H2 (FIG. 3), and then reverses and scans from the dust moving position H2 to the waiting position H1. do.

After the scanning of the brush unit 51 is finished, that is, after removal of the dust of the air filter 40 is finished, the brush unit position detection unit 120A of the indoor unit side control unit 120 is configured to perform the brush unit 51. It is discriminated whether or not it is located in the waiting position H1 (step SB7). When the brush unit 51 is not located at the standby position H1 (step SB7: NO), since any abnormality has occurred, the indoor unit side control unit 120 operates to remove dust from the air filter 40. The operation is interrupted and the effect is notified (step SB3). Specifically, the chamber side control unit 121 is controlled to blink the LED 213C. On the other hand, when the brush unit 51 is located in the standby position H1 (step SB7: YES), the indoor unit side control part 120 controls the chamber side control part 121 to drive the brush drive motor 71. It controls, and the rotation of the rotation brush 64 is complete | finished (step SB8). Next, the indoor unit side control part 120 determines whether the rotation of the rotating brush 64 is complete | finished based on the output value of the photo sensor 124 (step SB9). When the rotation of the rotary brush 64 is not finished (step SB9: NO), the indoor unit side control part 120 stops the operation regarding the removal of the dust of the air filter 40, and notifies the effect ( Step SB3). Specifically, the chamber side control unit 121 is controlled to blink the LED 213C. On the other hand, when rotation of the rotating brush 64 is complete | finished (step SB9: Yes), the indoor unit side control part 120 controls the chamber side control part 121, and flashes LED 215C for a predetermined time (step). SB10).

As described above, in the present embodiment, when the brush unit 51 is located at the standby position H1, the indoor unit side control unit 120 allows the dust box 57 to move up and down, and the brush unit 51 is used. When it is not located in this waiting position H1, the indoor unit side control part 120 prohibits the dust box 57 lifting up. Here, when the suction grille 30 is raised and lowered when the brush unit 51 is located at the dust moving position H2 above the dust box 57, the brush unit 51 and the dust box 57 are not intended. There is a possibility of contact. However, in the present embodiment, when it is detected that the brush unit 51 is located at the standby position H1, that is, not reliably located at the dust moving position H2, the lifting and lowering of the dust box 57 is performed. Since it is permitted, it is possible to prevent inadvertent contact between the brush unit 51 and the dust box 57.

In addition, in this embodiment, 120 A of brush unit position detection parts detect that the brush unit 51 is located in the standby position H1, and the brush unit 51 moves dust above the dust box 57. By setting it as a structure which detects that it is not located in the position H2, it can detect that the brush unit 51 is not located above the dust box 57 reliably.

In addition, in this embodiment, when condition B is selected as a dust removal start condition of the air filter 40, the elevation prohibition time zone containing time T2 which is the removal start time of the dust of the air filter 40 is included. , The lifting and lowering of the dust box 57 is prohibited.

Here, when the brush unit 51 is scanning to remove dust from the air filter 40, the brush unit 51 is located at the dust moving position H2 above the dust box 57 during the scanning process. There is a thing. For this reason, when the dust box 57 is raised and lowered during the scanning of the brush unit 51, unintentional contact between the brush unit 51 and the dust box 57 may occur.

However, according to the present embodiment, when the condition B is selected, the dust box 57 while the current time reaches the time T2 and automatically removes dust from the air filter 40. ) Is prohibited, so that unintentional contact between the brush unit 51 and the dust box 57 can be reliably prevented.

Moreover, embodiment mentioned above showed one form of this invention to the last, and can be arbitrarily modified and applied within the scope of the present invention.

For example, in the above-mentioned embodiment, although the example of the light emission aspect of LED 213B, 214B, 215B and LED 213C, 214C, 215C was given, the light emission aspect of these LED is It is not limited to this example, It can set suitably.

In addition, in this embodiment, although it was the structure which various instructions are performed by the remote controller 130, you may comprise so that various instructions may be performed by a wired remote control.

In addition, in this embodiment, although the dust box 57 was attached to the suction grill 30 and the dust box 57 was raised and lowered according to the lifting of the suction grill 30, for example, the suction grill ( Regardless of the movement of 30, only the dust box 57 may be lifted and lowered.

In addition, in this embodiment, although it was the structure which detects that the brush unit 51 is located in the standby position H1 using the limit switches 110L and 110R, of the limit switches 110L and 110R, The shape and structure are not limited to the shape and structure described in the present embodiment. Moreover, it is good also as a structure which detects that the brush unit 51 is located in the standby position H1 using not only a limit switch but a sensor, such as a photo sensor.

In addition, in this embodiment, it detects that the brush unit 51 is not located in the dust moving position H2 above the dust box 57 by detecting that the brush unit 51 is located in the standby position H1. Although it was a structure to be set, the limit switch which operates when the brush unit 51 is located in the dust moving position H2, a photo sensor, etc. are provided, and the brush unit 51 is located in the dust moving position H2 using these, You may make it detect that it does not exist. That is, the mechanism and method which detect that the brush unit 51 is not located in the dust movement position H2 can be designed suitably.

1 is a perspective view of a ceiling embedded air conditioner according to an embodiment of the present invention;

2 is an exploded perspective view of the ceiling embedded air conditioner;

3 is a cross-sectional view of the ceiling embedded air conditioner;

4 is a perspective view of a corner panel;

5 is an external perspective view of the brush unit;

6 is a perspective view showing a state in which the upper case is removed from the state of FIG. 5;

7 is a side view of the brush unit;

8 is a side sectional view showing a brush unit and a dust box;

9 is a side sectional view showing a state in which the brush unit is moved above the dust box;

10 is a block diagram showing a functional configuration of a ceiling embedded air conditioner;

FIG. 11A is a diagram schematically showing a time table after the end, FIG. 11B is a diagram schematically showing a start time table, and FIG. 11C is a diagram schematically showing a cumulative time table. ;

12 is a flowchart showing an operation when the suction grill lowers.

Fig. 13 is a flowchart showing the operation when the dust of the air filter is removed.

<Explanation of symbols for the main parts of the drawings>

1: body unit 9: blower

11: heat exchanger 21: cremation panel

30: suction grille 35: lifting unit (lifting means)

40: air filter 51: brush unit (removal device)

57: dust box 100: ceiling embedded air conditioner

120: indoor unit control unit (elevation control means)

120A: brush unit position detecting unit (position detecting unit)

H1: standby position

Claims (4)

An air conditioner comprising a main body unit having a heat exchanger and a blower, and a makeup panel disposed below the main body unit, An air filter for collecting dust in the air sucked through the suction grille of the makeup panel in the main body unit, and a removal device for scanning the lower surface of the air filter to remove dust attached to the air filter; A dust box in which dust removed by the removal device is removed from the removal device and integrated, lifting means for supporting the dust box in a liftable manner with respect to the air filter and the removal device, and the removal device includes the dust box. Position detection means for detecting that it is not located above the box, and when it is detected by the position detection means that the removal device is not located above the dust box, the lifting means is controlled to be liftable. An air conditioner, characterized in that it comprises a lift control means. The said removal apparatus is controlled so that it may be located in the standby position set at the position away from the upper part of the said dust box, while the dust attached to the said air filter is not removed, And the position detecting means detects that the removing device is not located above the dust box by detecting that the removing device is located in the standby position. The scanning start time according to claim 1 or 2 is configured to be settable to start scanning of the removal device. And the lift control means prohibits the lift of the dust box by the dust box lift means for a predetermined time period including the scanning start time. As a control method of the air conditioner provided with the main body unit which has a heat exchanger and a blower, and the makeup panel arrange | positioned under this main body unit, An air filter for collecting dust in the air sucked through the suction grille of the makeup panel in the main body unit, and a removal device for scanning the lower surface of the air filter to remove dust attached to the air filter; And a dust box in which dust removed by the removal device is removed from the removal device and integrated therein, and lifting means for supporting the dust box in a liftable manner with respect to the air filter and the removal device. When it is detected that the removal device is not located above the dust box, and when it is detected that the removal device is not located above the dust box, the lifting means is controlled to be liftable. Control method of air conditioner.

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