KR20060105761A - Air conditioner, and control method and control program for air conditioner - Google Patents

Abstract

An air conditioner enabling the easy and safe cleaning of a filter, comprising a suction grill (37) having a filter for air cleaning installed at the bottom thereof. The first and second units as lifting means lift the suction grill (37) by supporting the suction grill (37) by hanging strings (50a) to (50d) and delivering or winding back the hanging strings (50a) to (50d). When the first and second units are not brought into contact with the lateral one end of the suction grill (37) while a specified time is passed after the lateral other end of the suction grill (37) comes into contact with an air conditioner body (1a) when the suction grill is stored, the hanging strings (50a) to (50d) are delivered to lower the other end in contact with the air conditioner body (1a) by a predetermined distance. Also, filter chamber having a high performance filter is installed between the air conditioner body and the suction grill, the first and second units as the lifting means for lifting the suction grill are disposed on the inside of side covers installed on both sides of the air conditioner body, and the suction grill is supported by the lifting means by using the hanging strings.

Description

Air conditioner, control method and control program of air conditioner {AIR CONDITIONER, AND CONTROL METHOD AND CONTROL PROGRAM FOR AIR CONDITIONER}

The present invention relates to an air conditioner installed on the ceiling of an indoor space, a control method and a control program of the air conditioner.

DESCRIPTION OF RELATED ART Conventionally, the ceiling suspension type air conditioner which is the structure which is suspended and installed from the ceiling of a room using a suspension bolt is known (for example, patent document 1). In this type of ceiling suspension type air conditioner, a suction grille is provided on the bottom surface of the air conditioner main body (a surface facing the bottom of the building), and a filter is provided on the suction grille. The filter provided in the suction grill is regularly removed and cleaned by a worker or the like, thereby fully exhibiting the performance as an air conditioner. Moreover, the filter chamber which accommodated the high performance filter (for example, long life filter) other than the filter provided in a suction grill may be provided in this kind of air conditioner (for example, patent document 2).

Patent Document 1: Japanese Patent Application Laid-Open No. 9-275251

Patent Document 2: Japanese Patent Application Laid-Open No. 11-101497

However, in order to perform the filter cleaning, the worker or the like must remove the filter disposed on the suction grill from the air conditioner main body at each time near the ceiling surface, which is very troublesome and removes the suction grill. At this time, it was not preferable from the standpoint of safety because it worked on a stand or the like. In addition, in the air conditioner provided with the filter chamber as well, it is very complicated to perform the operation such as removing the filter at the vicinity of the ceiling surface at the same time, and also has to work on the table or the like from the standpoint of safety. It was not desirable.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an air conditioner, a control method and a control program of the air conditioner, which can perform filter cleaning more simply and safely.

In order to achieve the above object, the present invention provides an air conditioner having an accommodating portion for storing an intake grill on which an air cleaning filter is loaded, wherein the intake grill is supported by a hanging string to feed the hanging string or wind up Lifting means for raising and lowering the suction grill together with the filter by returning, and a predetermined time from when one end of the suction grill in the width direction of the suction grill contacts the storage unit when the suction grill is raised and stored in the storage unit. If the other end of the suction grille did not come into contact until this elapses, the suspension strap is pulled to the lifting means to lower the one end in contact with the housing by a predetermined distance, and then the suspension strap is again removed. It is characterized by including a control means for winding up and raising the whole suction grille.

In addition, in the present invention, the control means, at the time of lifting the suction grille, the other end portion of the suction grille from a time when one end in the width direction of the suction grille touches the housing portion until a predetermined time elapses. In the case of contacting the housing, the suspension strap is pulled out by the lifting means to lower the entire suction grille by a predetermined distance, and then the suspension strap is wound up again by the lifting means, so that the entire suction grille is a predetermined distance. It is characterized by rising as much.

In addition, the present invention, the control means is to feed the suspension straps to the lifting means to lower the entire suction grille by a predetermined distance, and then again to take up the suspension straps to the lifting means to determine the entire suction grille It is characterized in that the descent and raising operation of raising the distance is repeated n times (n ≧ 2).

Moreover, this invention is the said lifting means is provided in each of the both sides of the width direction of the said air conditioner main body, It is characterized by the above-mentioned.

In addition, the present invention is characterized in that the ceiling suspension type is suspended from the indoor ceiling.

In addition, the present invention includes a filter chamber including a high performance filter between the air conditioner main body and the suction grill in the air conditioner, and the suction grill is raised and lowered inside the side cover provided on both sides of the air conditioner main body. And an elevating means for supporting the suction grille with a suspension strap.

In addition, the present invention is characterized in that the filter chamber is provided with a gap passing through the suspension string.

In addition, the present invention is characterized in that the elevating means is installed and fixed to a portion of the air conditioner main body covered by the side cover.

In addition, the present invention is characterized in that the elevating means is installed and fixed to the side cover.

In addition, the present invention, the filter chamber has a four-way frame disposed in the inlet of the air conditioner main body, and a filter frame for placing the high-performance filter, and passes through the hanging string between the four-side frame and the filter frame A gap is provided.

In addition, the present invention is characterized in that the suction grill is protruded toward the main body of the air conditioner, and has a suspension string connection portion to which the suspension string is connected, and the filter chamber is provided with a gap through which the suspension string connection portion passes. .

In addition, the present invention has an accommodating portion for accommodating an intake grill on which an air cleaning filter is mounted, wherein the intake grill is supported by a suspending string to assist the suspending string, or to return the intake grill together with the filter. A control method for controlling an air conditioner having elevating means for elevating, wherein when one suction portion of the suction grill in the width direction of the suction grill is raised and stored in the housing, If the other end of the suction grille did not come into contact until a predetermined time elapses, the suspension strap is pulled out by the lifting means to lower the one end in contact with the storage part by a predetermined distance, and then the suspension It is characterized by raising the whole suction grille by winding up a string.

In addition, the present invention has an accommodating portion for accommodating an intake grill on which an air cleaning filter is mounted, wherein the intake grill is supported by a suspending string to assist the suspending string, or return the winding to the suction grill together with the filter. In a control program for controlling an air conditioner having elevating means for raising and lowering, one end of the suction grill in the width direction of the suction grill when the air conditioner is lifted up and stored in the housing part. In the case where the other end of the suction grille has not contacted from the time of contact with the payment part until a predetermined time has elapsed, the suspending strap is fed to the lifting means to lower the one end part in contact with the storage part by a predetermined distance. Function as a means of raising the whole suction grille by winding the suspension string again It is characterized by.

In the present invention, when the suction grill is raised and stored in the housing, when the other end of the suction grill does not touch from when one end in the width direction of the suction grill is in contact with the housing, a predetermined time elapses. Since the suspension strap is fed to the lifting means to lower the one end in contact with the storage unit by a predetermined distance, the suspension strap is wound up again to raise the entire suction grill, so that the filter of the air conditioner is cleaned. This can be done more simply and safely.

In addition, the present invention includes a filter chamber having a high performance filter between the air conditioner main body and the suction grill, and arranging lifting means for elevating the suction grill inside the side covers provided on both sides of the air conditioner main body. Since the lifting means supports the suction grille with the hanging string, the suction grille can be raised and lowered even if the filter chamber is attached.

1 is a perspective view showing an appearance configuration of a ceiling suspension type air conditioner according to an embodiment of the present invention.

2 is a cross-sectional view showing the configuration of an air conditioner.

3 is a top view showing the internal configuration of the air conditioner main body.

4 is a view for explaining lift of the suction grille.

Fig. 5 is a diagram showing a unit containing a lifting mechanism.

6 is a diagram schematically showing a functional configuration of a unit.

Fig. 7 is a flowchart showing the operation procedure when storing the suction grill by the air conditioner main body.

FIG. 8 is a view for explaining the operation when correcting the inclination in the lateral direction at the time of storing the suction grill.

Fig. 9 is a diagram for explaining the operation when correcting the inclination in the widthwise direction at the time of the suction grill storage.

Fig. 10 is a perspective view showing the external configuration of the ceiling suspension type air conditioner when the filter chamber is mounted.

Fig. 11 is a sectional view showing the ceiling suspension type air conditioner when the filter chamber is mounted.

Fig. 12 is a perspective view showing the filter chamber of the ceiling suspension type air conditioner together with its peripheral configuration.

Fig. 13 is a perspective view showing the filter chamber of the ceiling suspension type air conditioner together with its peripheral configuration.

Fig. 14 is a perspective view showing the filter chamber of the ceiling suspension type air conditioner together with its peripheral configuration.

Fig. 15 is a perspective view showing a lift mechanism of the suction grille.

Fig. 16 is a sectional view showing the lifting mechanism of the suction grille.

17 is a diagram showing a unit according to a modification of the present invention.

[Description of the code]

1: ceiling suspension type air conditioner

1a: air conditioner body

11: battlefield box

13: blower

14: Floor Panel

15: heat exchanger

31: drain pan

37: suction grill

38, 38a to 38d: suspension string connection

39, 100: filter

45: side cover

50, 50a to 50d: suspension string

60a: first unit

60b: second unit

70: bobbin

72: control circuit

74: unit side connector

75: rotation detector

90: filter chamber

91: frame everywhere

91a to 91d: frame member

92: filter frame

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

<First Embodiment>

1 is a perspective view showing an external configuration of a ceiling suspension type air conditioner 1 as an example of the air conditioner according to the present embodiment. 2 is a sectional view showing the internal structure of the air conditioner main body 1a, and FIG. 3 is a plan view similarly showing the internal structure.

As shown in Fig. 1, in the ceiling suspension type air conditioner 1, side covers 45 are disposed on both sides of the air conditioner main body 1a, and the lower part (bottom part) of the air conditioner main body 1a. ), The bottom panel 14 and the suction grille 37 are arrange | positioned, and the bottom part of this air conditioner main body 1a is comprised as a storage part of the suction grille 37. As shown in FIG. Further, the air conditioner main body 1a is provided with a receiving unit (not shown) that receives an instruction signal from a remote controller (not shown) for controlling the air conditioner main body 1a.

As shown in FIG. 2, the air conditioner main body 1a is mounted and fixed to the lower surface of the indoor ceiling plate 5 across the suspension bolt 3 suspended from the ceiling. In this air conditioner main body 1a, the heat exchanger 15 and the blower 13 are arranged in order from the front surface in which the blower outlet 41 was provided, and in addition, various things, such as the electrical equipment box 11 and the refrigerant piping 29, were carried out. Most of the equipment is stored without gaps.

The blower 13 consists of four blower units 21-24, as shown in FIG. 3, These are fixed and arrange | positioned on the rotating shaft 27 driven by one motor 25. As shown in FIG. The heat exchanger 15 is a fin tube type heat exchanger, as shown in Fig. 2, and is inclined in the air conditioner main body 1a. A refrigerant pipe 29 is connected to the heat exchanger 15, and the refrigerant pipe 29 is led out of the air conditioner main body 1a to provide a compressor, a pressure reducing device, an outdoor heat exchanger, or the like of an outdoor unit (not shown). Connected.

Below the heat exchanger 15, the drain pan 31 made of foamed styrol is provided, and the sheet metal panel 33 is provided in the lower surface of this drain pan 31. As shown in FIG. The drain pump unit 35 is connected to the drain storage part 31a of the drain pan 31 via the flexible tube 32 as shown in FIG. 3, and is accommodated in the drain pump unit 35. The drain pump pumps the drain collected in the drain reservoir 31a and discharges it out of the air conditioner body 1a.

Below the blower 13, as shown in FIG. 2, the suction grill 37 made of resin is provided, and the air cleaning filter 39 is provided in this suction grill 37. As shown in FIG. Then, when the blower 13 is driven, the air in the room is sucked into the air conditioner main body 1a through the suction grille 37 and the filter 39, and the air is heat-exchanged with the heat exchanger 15, and then the outlet ( 41) is taken out indoors. The intermediate partition plate 43 is a partition plate which partitions substantially the center of the air conditioner main body 1a transversely, and the blower 13 is arrange | positioned in the chamber partitioned by this intermediate partition plate 43.

Here, in this embodiment, as shown in FIG. 4, the suction grille 37 has a plurality of hanging string connecting portions 38a to 38d projecting upward, and a plurality of hanging string connecting portions 38a to 38d are connected. The suction grille 37 is supported by the air conditioner main body 1a via suspension strings 50a to 50d. Then, the suspension strings 50a to 50d are pulled out or rolled up to be lifted up in a predetermined range, and the filter 39 mounted on the suction grill 37 can be removed at the position where the suction grill 37 is lowered. Is configured.

In addition, in the following description, when it is not necessary to distinguish between each of the suspension strings 50a-50d and each of the suspension string connection parts 38a-38d, "a suspension string 50" and a "suspension string connection part ( 38) ”.

As shown in Fig. 3, the elevating mechanism for feeding or rewinding the four hanging strings 50a to 50d is provided by two units 60 fixed to both ends of the air conditioner main body 1a, namely, It is accommodated in the 1st and 2nd unit 60a, 60b. Each of the first unit 60a and the second unit 60b is held and fixed by the holder 62 after being installed on the side of the air conditioner main body 1a as shown in FIG. The first unit 60a is installed and fixed to the right end surface of the air conditioner main body 1a, and there are two hanging strings (for supporting one side 37A of the suction grill 37 (see Fig. 4) ( 50a, 50b) are connected. On the other hand, the second unit 60b is installed and fixed to the left end surface of the air conditioner main body 1a, and the remaining two suspensions supporting the other side 37B (see Fig. 4) of the suction grill 37 are attached thereto. Strings 50c and 50d are connected.

6 is a diagram schematically showing the configuration of the first unit 60a. As shown in this figure, the first unit 60a includes two bobbins 70 in which one suspension string 50 is wound, and a drive motor 71 for rotationally driving the bobbin 70. ), And the drive motor 71 drives the bobbin 70 via a gear train (not shown) to feed two suspension strings 50 or to recover the windings. In addition, the first unit 60a is provided with a control circuit (for example, an MPU) 72 for controlling rotational drive by the drive motor 71, and the control circuit 72 is a control program for a control operation. Is stored. In addition, each bobbin 70 is provided with a rotation detector 75 such as a rotary encoder for detecting the rotation amount of the bobbin 70, and the rotation amount of the bobbin 70 is output to the control circuit 72.

Moreover, the some signal line 73 is drawn out from the control circuit 72, and is connected to the unit side connector 74 formed in the housing surface outer side of the 1st unit 60a. This unit side connector 74 is formed in the surface which opposes the side surface of this air conditioner main body 1a, when it is installed in the air conditioner main body 1a among the housings of the 1st unit 60a, The first unit 60a and the air conditioner main body 1a are connected by signal communication by engaging with a main body side connector (not shown) provided on the side of the main body 1a. That is, since the 1st unit 60a is installed in the air conditioner main body 1a, the control circuit (not shown) by the side of the air conditioner main body 1a, and the control circuit 72 on the side of the 1st unit 60a are provided. It becomes possible to communicate with each other. In addition, since the structure of the 2nd unit 60b is the same as that of the said 1st unit 60a, the description is abbreviate | omitted.

When the worker raises or lowers the suction grill 37 (filter 39), first, the instruction to lift the suction grill 37 is given to the air conditioner main body 1a by a remote controller or the like. When the control circuit of the air conditioner main body 1a receives this instruction, it transmits to each control circuit 72 of the 1st unit 60a and the 2nd unit 60b, and the control circuit 72 which received this is driven. By rotating the motor 71 (forward rotation or reverse rotation), the four hanging strings 50a to 50d are fed or wound and the suction grill 37 is raised and lowered.

The control circuit 72 of the first unit 60a and the second unit 60b detects the detection signal from the rotation detector 75 so that the suction grill 37 stops at the working position when the suction grill 37 is lowered. The feeding amount of the suspension string 50 is controlled on the basis of. Here, the working position is a position where the worker can easily remove the filter 39 loaded on the suction grill 37 and is, for example, about 1 meter high from the bottom surface. In this embodiment, the distance from the bottom surface (that is, the installation position of the suction grill 37) to the working position of the air conditioner main body 1a is set in advance in the control circuit 72, and the control circuit 72 ) Rotates the bobbin 70 so that the suspension string 50 is fed by this distance.

On the other hand, when the suction grille 37 is raised, the control circuit 72 bases the detection signal from the rotation detector 75 to return to winding as much as the suspension string 50 is pulled out when the suction grille 37 is lowered. By controlling the drive motor 71 as described above, the suction grill 37 can be stored in the bottom surface of the air conditioner main body 1a.

By the way, the suction grille 37 is lowered in a posture inclined in the horizontal width direction (the horizontal width direction of the air conditioner main body 1a), or the amount of the suspension string 50 by each of the two driving motors 71 or The height of the horizontal direction (direction horizontal to the ceiling surface) of both sides 37A and 37B of the suction grill 37 is not aligned when the suction return 37 is raised and stored by different winding return amounts. It may become a posture inclined in the horizontal width direction. In addition, the suction grille 37 oscillates due to vibration of the suction grille 37 when the suction grille 37 moves up and down, and the suction grille 37 is completely closed to the bottom surface of the air conditioner main body 1a. The edge of the suction grill 37 or the like may be caught in the bottom panel 14 of the air conditioner main body 1a without being fitted. In particular, these phenomena become more prominent the longer the horizontal width of the suction grill 37 (that is, the larger the aspect ratio of the suction grill 37).

Therefore, in this embodiment, when one of the sides 37A and 37B of the suction grill 37 contacts the bottom surface of the air conditioner main body 1a at the time of accommodating the suction grill 37, it is a fixed time. When the other side does not contact the bottom surface of the air conditioner main body 1a even if this elapses, the inclination of the suction grille 37 shall be large, and the structure which performs the operation process for correcting this inclination is made. It is.

In addition, in this embodiment, after the suction grill 37 reaches the bottom surface of the air conditioner main body 1a at the time of the said operation process, this suction grill 37 is once dropped, and the suction grill 37 is again carried out. It is possible to suppress the fluctuation of the suction grill 37 by repeating the drop and lift control such as raising until the air conditioner main body 1a reaches the air conditioner main body 1a, and the suction grill 37 makes the air conditioner main body It is made to be stored reliably in the state completely closed by (1a).

Hereinafter, the operation process at the time of storing the suction grill 37 is demonstrated with reference to the flowchart shown in FIG. FIG. 7 is a flowchart showing an operation procedure executed by the control circuit 72 at the time of storing the suction grill 37.

As shown in this figure, when the control circuit 72 drives each of the two drive motors 71 to wind the suspension string 50 back, both sides 37A, When one of the driving motors 71 is locked such that one side of 37B contacts the bottom surface of the air conditioner main body 1a, and the lock current resulting from this lock is detected (step S1), the control circuit 72 A timer (not shown), which is built into the head, starts counting, and other driving is caused by contacting the bottom surface of the air conditioner main body 1a with the other side of the suction grill 37 during the preset count time Ct. It is determined whether the lock current in the motor 71 has been detected (step S2).

This count time is set in accordance with the degree to which the suction grill 37 is allowed as the inclination of the transverse direction. In detail, as shown in FIG. 8, when the width | variety of the suction grille 37 is W, and the inclination-angle of the horizontal width direction is (theta), the height of each side 37A, 37B of the suction grille 37 is shown. The shift amount L in the direction is about L = θ × W. On the other hand, if the winding return amount of the suspension string 50 per unit time of the drive motor 71 is S, the time T required to return the shift amount L to winding is about T = L / S. .

That is, in the case where the allowable inclination angle of the suction grille 37, that is, the shift amount is Lt, the count time Ct = Lt / S is set in the control circuit 72 as the time to be counted.

By the way, in the determination of said step S2, when the lock current in the other drive motor 71 is not detected and the contact of the other side of the suction grille 37 was not detected (step S2: no), a control circuit 72 stops each of the two drive motors 71 (step S3), drives only the drive motor 71 on the side that is in continuous contact, draws the suspension string 50, and the side of the contacting side. The side is lowered by the predetermined distance M (step S4), and the processing sequence is returned to step S1.

By the above operation, as shown in Fig. 9, the displacement amount L 'in the height direction of both sides 37A and 37B is represented by L' = | L-M | (│x│ represents an absolute value of the value x).) Decreases, and by repeating the operations of these steps S1 to S4, the shift amount L 'is set to be equal to or smaller than the allowable shift amount Lt and small enough to allow the inclination of the suction grill 37 in the transverse direction. It becomes possible.

In this way, when the amount of displacement L in the height direction of both sides 37A and 37B is equal to or less than the amount of deviation Lt allowed, the determination result of step S2 is taken as an example, and the control circuit 72 steps the processing sequence. Proceeding to S5, an operation for reliably storing the suction grill 37 in a completely closed state is performed.

In detail, the inclination of the suction grille 37 in the transverse direction is corrected by the operation of the above steps S1 to S4, but the suction grille 37 is housed in the completely closed state on the bottom surface of the air conditioner main body 1a. It is not limited to this, and it may be in the state which caught the bottom panel 14 in some cases. Thus, the control circuit 72 rotates the drive motor 71 to receive the suction grill 37 in the fully closed state so that the suction grill 37 as a whole is first predetermined distance (for example, 1 meter). After lowering once (step S5), the suction grill 37 is raised again until the suction grill 37 contacts the bottom surface of the air conditioner main body 1a, that is, the first predetermined distance dropped in step S5. (Step S6) The suction grill 37 is made to contact the bottom surface of the air conditioner main body 1a.

When the suction grille 37 is once lowered by the operation of the steps S5 and S6, the posture is corrected, and when it is raised again, the suction grille 8 is stored in a completely closed state, but the posture is not sufficiently corrected. In addition, it may be in a state caught on the floor. Therefore, in order to improve the certainty, the control circuit 72 lowers the suction grille 37 again by a second predetermined distance (step S7), and then raises it again by this second predetermined distance (step S8). 37) to the bottom surface. At this time, the fluctuation at the time of the intake grill 37 is suppressed by the contact (contact in step S6) of the end of the intake grill 37 and the air conditioner main body 1a, and the intake grill 37 is again carried out. Since the shaking of the suction grille 37 is less likely to occur by making the fall width (second predetermined distance) at the time of lowering the pressure lower than the first predetermined distance, the suction grille 37 has air in a state where the vibration is sufficiently suppressed. The bottom surface of the conditioner main body 1a comes into contact with and is stored in a fully closed state almost reliably.

In addition, the number of repetitions of lowering and raising the suction grille 37 for storing the suction grille 37 in the fully closed state is not limited to one, and it is more reliable by increasing the number of repetitions (for example, three times). The suction grill 37 can be housed in a completely closed state on the bottom surface of the air conditioner body 1a.

As described above, according to the present embodiment, since the suction grille 37 is raised and lowered, the worker can lower the suction grille 37 to the working position to remove the filter 39. It is not necessary to remove the filter 39 near the ceiling surface on which (1a) is provided, so that the work can be performed simply and safely.

In addition, according to this embodiment, the 1st and 2nd units 60a and 60b which raise and lower the suction grill 37 are not built in the air conditioner main body 1a (that is, it is stored in the casing 12A), but Since it is set as the structure provided in the outer side of the side surface of the air conditioner main body 1a, and the structure which can communicate with the air conditioner main body 1a by the unit side connector 74, the 1st and 2nd unit ( At the time of maintenance of 60a, 60b, etc., removal and installation of these units become easy.

Moreover, according to this embodiment, when the suction grill 37 has reached the bottom surface of the air conditioner main body 1a when accommodating the suction grill 37, the suction grill 37 is lowered once. Since the suction grill 37 is configured to repeatedly descend and rise several times until the suction grill 37 reaches the air conditioner main body 1a, the shaking of the suction grill 37 is suppressed and the suction grill 37 is suppressed. ) Can be reliably stored in a state of being completely closed in the air conditioner main body 1a.

Moreover, according to this embodiment, when one of both sides 37A, 37B of the suction grill 37 contacts the bottom surface of the air conditioner main body 1a at the time of accommodating the suction grill 37, it is constant. If the other side does not contact the bottom surface of the air conditioner main body 1a even after elapse of time, only the side of the contacted side is once dropped, and the whole suction grill 37 (both sides 37A and 37B) is again Since it is set as the structure which repeats operation | movement, such as raising ,, it becomes possible to correct the inclination of the suction grill 37 at the time of storage in the width direction.

<2nd embodiment>

In this embodiment, as shown in FIG. 10 and FIG. 11, the filter chamber 90 is attached to the intake port of the air conditioner main body 1a.

In addition, in each drawing, the same code | symbol is attached | subjected to the structure same as the structure of 1st Embodiment, and the detailed description is abbreviate | omitted.

This filter chamber 90 is used when a high performance filter is added. For example, a filter having a relatively quick replacement cycle is arranged in the suction grill 37, whereas the filter chamber 90 has a relatively long replacement cycle. A filter (long life filter) 100 is disposed. As this filter 100, there exist an optical regeneration deodorization filter, a normal temperature regeneration deodorization filter, etc. other than a disposable filter.

In this embodiment, the suction grille 37 is attached to the lower surface of the filter chamber 90, and the suction grille 37 is supported by the suspension so that the suction grille can be lifted and lowered via the suspension string 50 as shown in Figs. It is.

That is, in the suction grill 37, as shown in Fig. 12, a plurality of hanging string connecting portions 38a to 38d protruding upward are provided, and a plurality (four) connected to these hanging string connecting portions 38a to 38d. The suction grille 37 is supported by the lower surface of the filter chamber 90 via the suspension strings 50a to 50d. Then, the suspension strings 50a to 50d are pulled out or rolled up to be lifted up in a predetermined range, and the filter 39 mounted on the suction grill 37 can be removed at the position where the suction grill 37 is lowered. Is configured.

As shown in FIG. 12, the elevating mechanism for extracting or winding up the four suspension strings 50a to 50d (FIG. 14) is provided at both ends of the air conditioner main body 1a and fixed to two units ( 60), i.e., contained in the first and second units 60a, 60b. Each of the first unit 60a and the second unit 60b is installed on the side of the air conditioner main body 1a and then held and fixed by the holder 62. The first unit 60a is installed and fixed to the right end surface of the air conditioner main body 1a, and there are two hanging strings (for supporting one side 37A of the suction grill 37 (see Fig. 14) ( 50a, 50b) are connected. On the other hand, the second unit 60b is fixed to the left end surface of the air conditioner main body 1a, and the remaining two suspensions supporting the other side 37B (see Fig. 14) of the suction grill 37 are attached thereto. The strings 50c and 50d are connected.

As shown in Fig. 12, the filter chamber 90 includes a sheet metal all-round frame 91 that can be attached to the inlet of the air conditioner main body 1a, and a filter frame 92 for arranging the filter 100. It is composed roughly.

As shown in Fig. 13, the four-sided frame 91 has frame members 91a and 91b made of sheet metal having a substantially inverted c-shaped cross section disposed in a long direction, and a sheet metal having a substantially inverted c cross section arranged in a short direction. Compartment members 91c and 91d are formed, and a partition member 93 having a substantially rectangular cross section along a short direction is provided at an approximately center of the four-sided frame 91. In general, since the filter chamber is formed of a four-sided frame made of a sheet metal frame member having a substantially inverted c-section, the frame member in the longitudinal direction (width direction) is used in a wide air conditioner such as a ceiling suspended air conditioner. In this embodiment, since the partition member 93 is provided, the strength increases, and the problem that the filter chamber 90 is deformed during transportation or the like is eliminated.

As shown in Figs. 15 and 16, the filter frame 92 includes an outer filter frame 92a and an inner filter frame 92b.

These are arrange | positioned at the left and right both ends of the four-sided frame 91, and are arrange | positioned in pair along the short direction of the four-sided frame 91, respectively. In this air conditioner, two types of filters 100 can be mounted alternatively, and in the state shown in Fig. 16, a small filter 100 is mounted between a pair of inner filter frames 92b. In addition, when attaching the large filter 100, the inner filter frame 92b connected to the outer filter frame 92a via the screw 92c is removed, and the large filter (between the pair of outer filter frames 92a) is removed. 100) is mounted.

In this embodiment, as shown in FIG. 16, the suspension string 50 which suspends the suction grille 37 passes through the clearance gap S between the four sides frame 91 and the outer filter frame 92a. The gap S is formed to a size such that not only the suspension string 50 but also at least the suspension string connecting portion 38 which engages the suspension string 50, and directly above the suspension string connecting portion 38. 60a (or the second unit 60b) is disposed.

Thus, since the clearance gap S for passing the some hanging string 50 which suspends the suction grill 37 is provided between the four sides frame 91 and the outer filter frame 92a, the air conditioner main body ( Even if the filter chamber 90 is attached to the suction port of 1a), the filter chamber 90 can raise and lower the suction grill 37 without interfering with the hanging string 50 or the hanging string connecting portion 38. Therefore, according to the above structure, even if the filter chamber 90 is mounted (second embodiment) or the filter chamber 90 is not mounted (first embodiment), the suction grill (using the lifting mechanism of the same structure) is used. 37) can be elevated.

16, the inner dimension L1 of the four-way frame 91 of the filter chamber 90 is formed substantially equal to the inner dimension L2 of the air conditioner main body 1a. According to this, even if the filter chamber 90 is attached (2nd embodiment) or the filter chamber 90 is not attached (1st embodiment), it becomes possible to use the suction grill 37 of the same structure. In FIG. 16, when this suction grille 37 is raised, the upper surface of the periphery of the suction grille 37 contacts the frame 91 on all four sides, keeping the suction grille 37 horizontally and in close contact with the filter chamber 90. As shown in FIG. Position can be determined.

Here, the 1st and 2nd unit 60a, 60b detects that the suction grill 37 has reached the accommodation position by detecting the rotation stop of the bobbin 70. Therefore, even when the filter chamber 90 is attached (second embodiment) or the filter chamber 90 is not mounted (first embodiment), the suspension string 50 is wound up when the suction grill 37 is accommodated. The amount only changes, and in the control of the lifting mechanism according to the second embodiment, the suction grill 37 stops almost exactly at the position where the suction grill 37 contacts the filter chamber 90 without changing any processing to the control of the first embodiment. You can.

According to the present embodiment, even when the filter chamber 90 is attached, the suction grill 37 can be raised and lowered, so that the worker can remove the filter 39 by lowering the suction grill 37 to the working position. .

As a result, it is not necessary to remove the filter 39 near the ceiling surface on which the air conditioner main body 1a is installed, so that the operation can be performed simply and safely.

The above-described embodiment is merely one embodiment of the present invention, and can be arbitrarily modified within the scope of the present invention. For example, in the above-mentioned embodiment, each of the 1st unit 60a and the 2nd unit 60b which are lifting mechanisms is provided and fixed to the side outer side of the air conditioner main body 1a, and is fixed (FIG. 5 or FIG. 12). Although the structure covered by the side cover 45 was demonstrated, it is not limited to this, As shown in FIG. 17, each of the 1st unit 60a and the 2nd unit 60b has a side cover ( 45 may be arranged one by one inside.

In this configuration, the signal line 73 drawn out from the control circuit 72 (see FIG. 6) of the first unit 60a and the second unit 60b is drawn out of the unit housing as shown in FIG. The first unit 60a and the second unit 60b are connected to the air conditioner by connecting the unit side connector 74 provided at the distal end of the signal line 73 to the side surface of the air conditioner main body 1a. The main body 1a can be communicatively connected.

In the above-mentioned embodiment, the structure which detects that the suction grille 37 contacted the air conditioner main body 1a or the filter chamber 90 based on the detection signal of the rotation detector 75 (refer FIG. 6). Although not limited to this, an appropriate number of switches for detecting that the suction grille 37 is in contact with a portion in which the suction grille 37 is accommodated in the air conditioner body 1a or the filter chamber 90 are stored. It is good also as a structure to provide, or it is good also as a structure which detects the drive current of the drive motor 71, and detects the transient current accompanying rotation stop of the bobbin 70.

In addition, although the above-mentioned embodiment demonstrated the case where the suction grill 37 was suspended with four suspension strings 50a-50d, the number of suspension strings may be arbitrary.

In the above embodiment, the case where the present invention is applied to the ceiling suspension type air conditioner has been described. However, the present invention can be widely applied to an air conditioner such as a ceiling embedded type air conditioner.

Claims (13)

In the air conditioner which has an accommodating part which accommodates the suction grill in which the air cleaning filter is mounted, Elevating means for supporting the suction grill with a suspension string to pull the suspension string or return the winding to lift the suction grill together with the filter; When the suction grill was raised and stored in the housing, the other end of the suction grill did not touch from one end in the width direction of the suction grill until a predetermined time had elapsed. In this case, the suspending means is provided to the elevating means to lower the one end portion in contact with the storage part by a predetermined distance, and then the control means for raising the entire suction grille by winding the suspension string again. Air conditioner. The other end of the suction grill according to claim 1, wherein the control means has the other end portion of the suction grill during the lifting up and down of the suction grille from which one end in the width direction of the suction grille touches the housing portion until a predetermined time elapses. In the case of contacting the housing, the suspension strap is pulled out by the lifting means to lower the entire suction grille by a predetermined distance, and then the suspension strap is wound up again by the lifting means, so that the entire suction grille is a predetermined distance. Air conditioner, characterized in that ascending as much. 3. The control means according to claim 2, wherein the control means draws the suspension string to the lifting means to lower the entire suction grille by a predetermined distance, and then winds the suspension string back to the lifting means to predetermine the entire suction grille. An air conditioning apparatus characterized by repeating the descent and raising operations of raising the distance by n times (n ≧ 2). The air conditioner according to claim 1, wherein the elevating means is provided on each of both sides in the width direction of the air conditioner main body. The air conditioner according to claim 1, which is a ceiling suspension type suspended from an indoor ceiling. A filter chamber having a high performance filter between the air conditioner body and the suction grille, An elevating means for elevating the suction grill inside the side cover provided on both sides of the air conditioner main body, And the elevating means supports the suction grille with a suspension strap. The air conditioner according to claim 6, wherein the filter chamber is provided with a gap passing through the suspension string. The air conditioner according to claim 6, wherein the elevating means is installed and fixed at a portion of the air conditioner main body covered by the side cover. The air conditioner according to claim 6, wherein the elevating means is fixed to the side cover. 8. The filter chamber according to claim 7, wherein the filter chamber has a four-way frame disposed at an inlet of the air conditioner main body, and a filter frame for arranging the high performance filter, and passes through the suspension string between the four-side frame and the filter frame. An air conditioner, wherein a gap is provided. 9. The suction grille according to claim 8, wherein the suction grille protrudes toward the main body of the air conditioner and has a hanging string connecting portion to which the hanging string is connected, and the filter chamber is provided with a gap through which the hanging string connecting portion passes. Air conditioner. Lifting means for holding an intake grill on which an air cleaning filter is loaded, for supporting the intake grill by a suspension strap to feed the suspension strap or winding up and returning the suction grill to raise and lower the suction grill together with the filter. In the control method for controlling an air conditioner having a, When the suction grill was raised and stored in the housing, the other end of the suction grill did not touch from one end in the width direction of the suction grill until a predetermined time had elapsed. In this case, the air conditioning apparatus is characterized by feeding the suspension string to the lifting means to lower the one end portion in contact with the housing portion by a predetermined distance, and then winding the suspension string again to raise the entire suction grille. Control method. A lifting means for storing an intake grill on which an air cleaning filter is loaded, supporting the intake grill with a suspension strap to feed the suspension string or returning the wound grill to raise and lower the suction grill with the filter; In the control program for controlling the air conditioner provided, The air conditioner, When the suction grill was raised and stored in the housing, the other end of the suction grill did not touch from one end in the width direction of the suction grill until a predetermined time had elapsed. In this case, the suspension strap is fed to the elevating means to lower the one end portion in contact with the storage portion by a predetermined distance, and then the suspension strap is wound up again to function as a means for raising the entire suction grill. Program of air conditioning system.

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