KR20090051478A - Method for setting down distance of ceiling embedded type multi-air conditioner - Google Patents

Abstract

The present invention relates to a method of setting a suction grille down distance of a ceiling type air conditioner, and an object of the present invention is to provide a plurality of suction grilles without having to set a distance for each of the plurality of suction grilles installed in the same ceiling height. Setting the descent distance for one of the suction grills, setting the descent distance for the other suction grills automatically sets the descent distance for the suction grille. In providing.

To this end, the method for setting the suction grille falling distance of the ceiling type air conditioner according to the present invention comprises the steps of: setting a falling distance for one of the suction grilles of the plurality of suction grilles installed in the same ceiling height; And a second step of automatically setting the set falling distance to the falling distance in the same manner for the other suction grills.

Ceiling type air conditioner, suction grille, descending distance

Description

Method for setting down distance of ceiling embedded type multi-air conditioner}

The present invention relates to a method for setting a suction grille down distance of a ceiling type air conditioner, and more specifically, when setting a down distance for one suction grille among a plurality of suction grilles, the same down distance is applied to other suction grilles. It relates to a method of setting the suction grille falling distance of the ceiling-type multi air conditioner that can be set to automatically by the user.

In general, the ceiling type air conditioner installed on the ceiling of a building enters into the interior space of the ceiling with an indoor heat exchanger and a blower installed therein, and a ceiling panel installed to cover the lower surface of the main body and the opening of the ceiling. Equipped with. In addition, such an air conditioner has an inlet formed at the center of the ceiling panel for suction and discharge of indoor air, and a plurality of discharge ports formed at the outer side of the inlet of the ceiling panel, and the ceiling to purify the air sucked through the intake port. An air purifying filter is provided inside the inlet of the panel.

When the ceiling air conditioner is used for a long time, foreign matters such as dust accumulate on the air purification filter. Such foreign matters cause mold growth and cause an unpleasant smell in the air discharged into the indoor space. Therefore, it is necessary to replace or clean the air purification filter.

However, in the case of the ceiling type air conditioner, the air purification filter is located inside the inlet of the ceiling panel. In order to replace or clean the air cleaning filter, the user has to raise the ceiling height using a ladder or the like.

Therefore, the ceiling type air conditioner proposed to solve this problem is disclosed in Republic of Korea Patent No. 430874. The ceiling type air conditioner disclosed in this publication has a suction grill detachably mounted at the center of the ceiling panel so that the user can separate the air purification filter, and the user can easily change the air purification filter by lifting the suction grill up and down. There is a lifting device for cleaning. The air purification filter is usually mounted on the inner surface (upper surface) of the suction grill so that it can be lowered together when the suction grill is lowered.

The lifting device includes wires respectively connected to four corners of the suction grill, and a driving device for lifting and lowering the suction grill by simultaneously winding or unwinding the wires.

Therefore, the control unit controlling the operation of the lifting device rotates the driving device in the lifting device in the forward direction by the falling signal of the remote control to release the wire, and the suction grille is lowered, and the driving device is rotated in the reverse direction by the rising signal of the remote control. The suction grill is raised by winding the wire.

The suction grille is designed to be lowered or raised as much as the descending or rising distance (hereinafter referred to as the 'falling distance') set in the microcomputer (hereinafter referred to as the 'suction grille control unit') that controls the lowering or rising operation of the suction grille. . Therefore, in order to operate the suction grille down or up, the process of setting the initial falling distance of the suction grille is essential.

There is a ceiling type multi air conditioner in which a plurality of indoor units are connected to at least one outdoor unit of the ceiling type air conditioner, and in the case where a plurality of indoor units (main unit) are installed in a space of the same ceiling height among these ceiling type air conditioners In the related art, a separate installation method for descending distances in which an installer sets an initial descending distance separately for each suction grill mounted on a plurality of indoor units by operating a switch provided on a ceiling panel or using a remote controller or the like is used.

However, if the switch is used in the conventional method, the installer has to repeatedly go up and down to the ceiling height to set the descent distance, and even if the descent distance is set by the remote controller, a plurality of indoor units are mounted far from each other. In this case, there is a problem in that the moving distance of the installer is considerably long and cumbersome.

Accordingly, the present invention is to solve the above-mentioned problems, an object of the present invention is to install the suction distance of any one of the plurality of suction grills even if the installer does not set the descending distance for each of the plurality of suction grills installed in the same ceiling height. When the lowering distance is set for the suction grille, the lowering distance of the ceiling type air conditioner can be set for the user's convenience by automatically setting the same lowering distance for other suction grilles.

Method for setting the suction grille down distance of the ceiling-type multi air conditioner according to the present invention for achieving the above object is to set the falling distance for any one of the plurality of suction grille installed in the same ceiling height ceiling First step; And a second step of automatically setting the set falling distance to the falling distance in the same manner for the other suction grills.

In addition, when the first step is determined to be the first lowering operation of the suction grill, performing the lowering operation of the suction grill; Detecting a looseness of a wire connected to the suction grill during the descent operation; And setting the falling distance according to the detection result in the sensing step.

In addition, if the looseness of both wires of the suction grille is not detected, the set descending distance is set as the maximum falling distance of the suction grille.

In addition, if the looseness of both wires of the suction grille is not detected at the same time, the suction grille is raised and then the descending distance setting operation is performed again.

In addition, when the looseness of both wires of the suction grille is detected at the same time, the set falling distance is set as the falling distance of the suction grille-a.

According to the present invention, if the installer sets the descending distance for one of the suction grills of the plurality of suction grills without setting the descending distance for each of the plurality of suction grills installed in the same ceiling height, the other suction grilles Also, by automatically setting to the same falling distance with respect to the user can have the effect of promoting the convenience.

In addition, according to the present invention by setting the falling distance to the descent operation to the suction grill is raised to a height up to a certain distance (a) from the bottom surface there is an effect capable of coping with various ceiling height environment.

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

The present invention relates to a ceiling-type multi air conditioner, on the premise that a plurality of indoor units are connected to at least one outdoor unit. In the present embodiment, for example, a plurality of indoor units are connected to one outdoor unit for convenience of description. It will be described, assuming that the configuration of each of the plurality of indoor units are the same in the description of Figures 1 to 3 will be described based on (optional) one indoor unit.

As shown in FIGS. 1 and 2, the indoor unit of the ceiling-type multi air conditioner according to an embodiment of the present invention enters and installs into the ceiling 1 through the opening 2 of the ceiling 1. The ceiling panel 20 mounted at the lower end of the main body 10 to cover the opened box-shaped main body 10 and the lower surface opening 11 and the opening 2 of the ceiling 1 of the main body 10. It is provided.

Inside the main body 10, a blower 12 for blowing indoor air is installed at the center, and a heat exchanger 13 for cooling or heating air is installed at the outer side of the blower 12. The inlet 21 is formed at the center of the ceiling panel 20, and the outlet 22 is formed at the outer sides of the inlet 21.

This configuration is such that when the blower 12 inside the main body 10 operates, the air sucked into the main body 10 through the inlet 21 is heat-exchanged while passing through the heat exchanger 13, and then the discharge port 22. By supplying back to the indoor space through the cooling or heating of the indoor space can be performed.

In addition, the indoor unit of the ceiling-type multi air conditioner according to the present invention, the air purification filter 23 is installed on the inlet port 21 to filter foreign matter in the air sucked through the inlet port 21, and the user air purification filter ( 23 is provided with a suction plate 24 in the form of a plate detachably mounted to the suction port 21 of the ceiling panel 20 so as to be separated. At this time, the suction grill 24 is formed with a plurality of vent holes (24a) to enable the suction of air. And the air purification filter 23 is installed on the inner surface of the suction grill 24 so that when the user separates the suction grill 24 as shown in FIG.

In addition, in the present invention, the lifting and lowering of the suction grill 24 having the built-in air purification filter 23 so that the user can easily separate and replace or clean the air purification filter 23 from the air conditioner installed on the ceiling (1). Apparatus 30 is provided.

The elevating device 30 is composed of two sets of elevating devices which are respectively installed on both sides of the inlet 21 of the lower part of the main body 10 so as to simultaneously raise or lower the suction grill 24 on both sides. And each lifting device 30 on both sides of the first and second wires (31a, 31b) are respectively connected to the wire connecting portions (25a, 25b) of the upper surface of the two corners of the suction grill 24, as shown in FIG. And a driving device 40 installed below the main body 10 so that the suction grill 24 can be lifted and lowered by winding or unwinding the two wires 31a and 31b. The drive device 40 has a drive motor that rotates in the forward and reverse directions to wind or unwind the two wires 31a and 31b. In addition, each lifting device 30 is the first and second rollers are installed in the lower portion of the main body 10 respectively corresponding to the positions where the first and second wires 31a and 31b are connected to the suction grill 24 ( 32a and 32b and first and second opening and closing detection sensors 33a and 33b mounted at positions adjacent to the positions where the two rollers 32a and 32b are installed to detect the opening or closing of the suction grill 24, respectively. In order to sense the looseness of the first and second wires 31a and 31b during the lowering operation of the suction grille 24, the first and the second rollers are mounted near the first roller 32a and the second roller 32b, respectively. Two loosening sensors 34a, 34b.

This configuration is such that the first and second wires 31a and 31b are connected to the first and second rollers 32a and 32b when the driving device 40 of each lifting device 30 installed on both sides of the suction port 21 operates. The suction grill 24 may be lifted and lowered by being guided or wound while being guided by the first and second suction opening and closing sensors 33a and 33b when the suction grill 24 is fully raised and closed. It is to be able to detect the closing. Here, the first and second opening and closing detection sensors 33a and 33b for detecting the opening or closing may be formed of a conventional micro switch or hall sensor. In addition, the first and second looseness detection sensors 34a and 34b are provided to detect whether the suction grille 24 collides with a floor or an obstacle during the lowering operation of the suction grille 24.

The indoor unit of the ceiling type air conditioner according to the present embodiment having the above-described configuration As shown in FIG. 3, a suction grill control unit 60 is provided to control the operation of the overall suction grill 24.

The remote control unit 50 may be configured as a wired or wireless remote control, the installer (or user) is to input the operation command (falling or rising operation, stop, etc.) of the suction grill 24 through the remote control unit 50. .

The suction grill control unit 60 rotates the driving motor in the driving device 40 forward when the falling driving signal is input from the remote control unit 50, thereby releasing the first and second wires 31a and 31b to suck the suction grill 24. Lowering the suction motor 24 by lowering the first and second wires 31a and 31b by rotating the driving motor in the driving device 40 when the rising driving signal is input from the remote controller 50. .

In addition, the suction grill control unit 60 receives the detection signals from the first and second open / close detection sensors 33a and 33b, and the suction grill 24 is separated from the main body 10 to perform the downward or upward operation (suction grill 24 ) Or whether the suction grill 24 is mounted on the main body 10 (opened state of the suction grill 24), and the first and second looseness sensors 34a and 34b. It is determined whether the suction grille 24 collides with a floor or an obstacle during the lowering operation of the suction grille 24 by receiving a detection signal from the input.

 4 is a control block diagram of a ceiling type multi air conditioner according to an embodiment of the present invention. The ceiling type multi air conditioner according to the present embodiment has n indoor units and performs a setting operation for setting a suction grille descending distance. The (optional) one suction grill to be performed is assumed to be the first suction grill.

As shown in FIG. 4, the ceiling type air conditioner according to an embodiment of the present invention includes first to nth suction grill controllers 60a, 60b,..., 60n, and first to nth indoor unit controllers 70a and 70b. ,..., 70n), and outdoor unit control unit 80, control line 90, and communication line 100.

The first to nth suction grill controllers 60a, 60b, ..., 60n receive operation commands (falling or rising driving, stopping, etc.) from the remote controller 50 to operate the respective suction grills (falling or rising driving). , Stop, etc.).

The first to nth indoor unit controllers 70a, 70b, ..., 70n control the overall operation of each indoor unit (first indoor unit to the nth indoor unit), and in particular, the first indoor unit control unit 70a performs the descent distance setting operation. The operation state signal is transmitted to the first suction grill control unit 60a for performing, and when the falling distance of the suction grill is set through the setting operation, the outdoor unit controller receives the set falling distance information from the first suction grill control unit 60a. Send the setting information. Herein, the operation state signal means a reference value in the control program for determining whether the downward operation of the suction grill is the first operation.

The outdoor unit controller 80 controls the overall operation of the outdoor unit, and the control unit 70b of the other second to nth indoor units that do not perform the descent distance setting operation on the set descent distance information received from the first indoor unit controller 70a, ..., 70n).

The control line 90 is a line for exchanging various information (signals) and operation control between the indoor unit controllers 70a, 70b, ..., 70n and the respective connected suction grill control units 60a, 60b, ..., 60n. An operation state signal (first operation signal or setting completion signal) and setting falling distance information are transmitted through the line 90.

The communication line 100 is a line for exchanging various types of information between the indoor unit controllers 70a, 70b,..., 70n and the outdoor unit controller 80, and the setting falling distance information is transmitted through the communication line 100.

Hereinafter, a method of setting a suction grille fall distance of a ceiling type multi air conditioner according to an embodiment of the present invention will be described with reference to FIG. 5.

First, after the ceiling-type multi-air conditioner is installed inside the ceiling and completed installation, initial power is turned on (105), and the installer (or the user) sucks grille to perform the descent distance setting operation through the remote control unit 50 (here In operation 110, a falling driving start signal is input to the first suction grill. At this time, the first indoor unit controller 70a controls the first suction grille control unit 90 through the control line 90 to generate an operation state signal (eg, an initial operation signal is set to 0001, and a setting completion signal is set to 0002 in advance). 60a). That is, when the first indoor unit controller 70a transmits the initial operation signal to the first suction grill controller 60a through the control line 90, the signal S (state operation variable) = 0001 is transmitted, and when the setting completion signal is transmitted, S (State operation variable) = 0002 will be transmitted.

Thereafter, the first suction grill control unit 60a receives an operation state signal value transmitted from the first indoor unit controller 70a to determine whether the first suction grill is the first lowering operation (115).

If it is determined that the second and subsequent descending operations of the first suction grille (NO in step 115), the first suction grille control unit 60a causes the first suction grille to perform the normal lowering operation to the predetermined descending distance. Control 120.

On the other hand, if it is determined that the first suction operation of the first suction grill in step 115 (YES in step 115), the first suction grill control unit 60a sets the driving motor in the driving device 40 to set the falling distance of the suction grill. Rotate forward to control the first suction grill to perform the descent operation. This enters the suction grille descent setting operation.

The first suction grill control unit 60a receives the detection signals from the first and second looseness detection sensors 34a and 34b while the first suction grille is in a descending operation, and then the first wire 31a or the first wire. It is determined whether the looseness of the two wires 31b is sensed (130).

As a result of determination, if the looseness of the first and second wires 31a and 31b is not detected even after the descent operation has been performed for a long time (No in step 130), the height of the ceiling is too high and is wound inside the main body 10. It is determined that the wires 31a and 31b do not collide with the bottom surface of the air conditioning space even if all the wires 31a and 31b are released, and the set descent distance d is stored as the maximum descent distance of the suction grill, that is, the lengths of the wires 31a and 31b. Go to step 170.

On the other hand, if the looseness of the first wire 31a or the second wire 31b is detected (YES in step 130), the first suction grille control unit 60a again moves the suction grille wires 31a and 31b. It is determined 140 that the slack is detected simultaneously (or at very short time intervals).

If it is determined that the looseness of both (left and right) wires 31a and 31b of the suction grille is not detected at the same time (No in step 140), that is, only one wire is detected, the first suction grille control unit 60a determines that the suction grill collides with an obstacle while the lowering operation is in progress (engaged by an obstacle), and controls the first suction grill to stop the lowering operation (145). Thereafter, the first suction grill controller 60a notifies the installer of the presence of the obstacle through an alarm, a display unit (not shown), a lamp, etc. so that the obstacle on the suction grill down path can be removed 150. Next, the first suction grill control unit 60a rotates the driving motor in the driving device 40 in reverse to raise the first suction grill (after closing), and then waits for a set time for the installer to remove the obstacle. Return to 110 and start the descent distance setting operation again.

On the other hand, if the looseness of both (left and right) wires 31a and 31b of the suction grille is simultaneously detected in step 140 (YES in step 140), the first suction grille control unit 60a controls the air conditioning space while the suction grille is in the lowering operation. It is determined that the collision with the bottom surface, and the first suction grill is controlled to stop the lowering operation (160).

Thereafter, the first suction grill controller 60a stores the set descent distance d as the descent distance −a of the suction grill 165. At this time, the descending distance of the suction grill is calculated using the rotation speed of the drive motor in the drive device 40, the predetermined distance (a) is appropriately set according to the characteristics of the air conditioner user's convenience or air conditioning space.

As described above, when the falling distance is set, the suction grill is driven to the height up to a certain distance (a) from the floor surface. Thus, by setting the falling distance (d) to (falling distance of the suction grill -a) it is possible to cope with various ceiling height environment.

Next, the first suction grille control unit 60a transmits the set descent distance d information to the first indoor unit controller 70a through the control line 90 (170), and the first indoor unit controller 70a receives the first indoor unit controller 70a. The set descent distance d information received from the suction grill controller 60a is transmitted to the outdoor unit controller 80 through the communication line 100 (175).

Thereafter, the outdoor unit controller 80 transfers the set descent distance d information received from the first indoor unit controller 70a to the controllers 70b, ..., 70n of other second to nth indoor units that have not performed the descent distance setting operation. And the second to nth indoor unit controllers 70b, ..., 70n transmit the set descent distance d information received from the outdoor unit controller 80, respectively, to each of the connected suction grill controllers 60b, ..., 60n. The transmission is transmitted through the control line 90 (185).

Next, since the falling distance setting operation is completed, the first suction grill controller 60a transmits the falling distance setting completion signal (for example, an S (operation state variable) = 0002 signal) through the control line 90 to the first indoor unit controller 70a. In step 195, the first motor is controlled to perform a lift operation by rotating the driving motor in the driving device 40 in reverse.

Thereafter, the first suction grill control unit 60a receives the detection signals from the first and second open / close detection sensors 33a and 33b to determine whether the first suction grille is completely closed (200), and the first suction grille is completely closed. If it is determined that it is not closed (NO in step 200), the control returns to step 195 to continue to carry out the upward operation of the suction grill, and if it is determined that the first suction grill is completely closed (YES in step 200). The operation of the first suction grill is terminated.

1 is a cross-sectional view showing the configuration of an (optional) indoor unit of a ceiling type multi air conditioner according to an embodiment of the present invention.

Figure 2 is a perspective view showing the appearance of the (optional) indoor unit of the ceiling type multi air conditioner according to an embodiment of the present invention.

3 is an operation control block diagram of a suction grill mounted on an (optional) indoor unit of a ceiling type multi air conditioner according to an embodiment of the present invention.

4 is a control block diagram of a ceiling type multi air conditioner according to an embodiment of the present invention.

5 is a flowchart illustrating a method of setting a suction grille fall distance of a ceiling type multi air conditioner according to an exemplary embodiment of the present invention.

* Description of symbols on the main parts of the drawings *

10: body 21: inlet

23: air purification filter 24: suction grill

30 hoist 31a, 31b the first and second wire

34a, 34b: first and second loose sensor

60a to 60n: first to nth suction grilles control unit

70a to 70n: first to nth indoor unit controller

80: outdoor unit controller

Claims (5)

A first step of setting a descending distance for any one of the plurality of suction grills installed in the same ceiling height; Method for setting the suction grille falling distance of the ceiling-type multi air conditioner comprising a second step of automatically setting the set falling distance to the same falling distance for the other suction grills The method of claim 1, wherein the first step Performing the descent operation of the suction grill when it is determined that the suction grill is the first descent operation; Detecting a looseness of a wire connected to the suction grill during the descent operation; Method for setting the suction grille falling distance of the ceiling-type multi air conditioner comprising the step of setting the falling distance according to the detection result in the detecting step The method of claim 2, Method of setting the suction grille descent distance of the ceiling type air conditioner, wherein the set descent distance is the maximum descent distance of the suction grill, if the looseness of both wires of the suction grille is not detected. The method of claim 2, If the looseness of both wires of the suction grille is not detected at the same time, the suction grille falling distance setting method of the ceiling type air conditioner which raises the suction grille and then performs the lowering distance setting operation again. The method of claim 2, Method of setting the suction grille falling distance of the ceiling-type multi air conditioner having the set falling distance (falling distance of the suction grille-a) when the looseness of both wires of the suction grille is detected at the same time as the detection result.

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