JP4488196B2 - Indoor unit - Google Patents

Description

  The present invention relates to an indoor unit for improving an indoor environment, and more particularly to an indoor unit having an air filter cleaning means for cleaning an air filter provided in the indoor unit in the indoor unit. The indoor units of the present invention include air cleaners, dehumidifiers and the like as well as indoor units of air conditioners (air conditioners).

  An air conditioner will be described as an example. An air filter for removing dust contained in the air to be sucked is provided at the air inlet of the indoor unit. Has been done by. That is, the air filter is manually removed from the indoor unit for cleaning, and it can be said that the apparatus is an inexpensive method. However, it is troublesome because work must be performed each time.

  Also, depending on the location of the indoor unit, it may be difficult to remove the air filter. Especially when the indoor unit is installed at a high place, the air filter must be removed from the indoor unit, for example, on a chair or a stepladder. There is a risk of falling, so it is dangerous for the elderly. In consideration of this point, the present applicant has proposed a method of automatically cleaning without removing the air filter in Patent Document 1, for example.

  In the invention described in Patent Document 1, an air filter is disposed so as to be able to reciprocate (up and down) between an air suction port provided from the upper surface to the front surface and the indoor heat exchanger, and in the movement path thereof. A dust box having a brush is provided, and when the air filter passes through the dust box, both surfaces of the air filter are cleaned by the brush to scrape dust into the dust box.

  Since the air filter is driven up and down via a gear connected to the motor, a limit switch for detecting the filter position is provided on the side closer to the inlet than the gear, and the position of the air filter is reliably detected to raise and lower the air filter. Do exactly. On the other hand, the front surface of the indoor unit is provided with a panel that opens at the lower end with the upper end as a fulcrum. When cleaning the air filter, when the air filter descends, the panel is opened and jumps out of the indoor unit.

The filter cleaning device having the above structure is provided with an automatic cleaning mode and a manual cleaning mode, and the cleaning operation for raising and lowering the air filter can be automatically turned on / off according to the setting of the remote control, and an instruction signal from the remote control is also provided. Also, the air filter can be lowered and raised and cleaned arbitrarily.
Japanese Patent Laid-Open No. 2004-101101

  In the invention described in Patent Document 1, since the air filter can be automatically cleaned, the convenience for the user can be improved, but the problem to be solved still remains. As one of them, when the dust collected in the dust box is increased by cleaning the air filter, the dust attached to the air filter cannot be collected, and in the worst case, the collected dust may leak from the dust box.

  Also, the dust adhering to the air filter is not always uniform. For example, when an air suction port structure (crosspiece structure) or an indoor unit is equipped with an electrostatic dust collector or ultraviolet ray generator, the dust of the air filter The amount of adhesion is partially different, and the air flow rate in the air filter is not uniform depending on the internal structure of the indoor unit.

  Thus, if the amount of dust adhering to the air filter is uneven, the air filter will be unevenly cleaned, that is, the automatic cleaning will not be optimized, and the longer the operating time of the air conditioner, the more the dust will be. Nonuniform adhesion becomes prominent.

  In addition to this, for example, since the filter cleaning operation in the automatic cleaning mode is performed after the air conditioner has been operated for a predetermined time, it is assumed that the cleaning interval is long and the amount of dust attached to the air filter is large. On the other hand, since the cleaning operation by the signal from the remote controller (manual cleaning mode) is performed during the automatic cleaning mode, it is assumed that the amount of dust adhering to the air filter is small. Therefore, it is not preferable from the viewpoint of efficiency to make the moving speed of the filter the same in the manual cleaning mode and in the automatic cleaning mode.

  Furthermore, when the amount of dust (deposited amount) adhering to the air filter is large, if the air filter descends and rises quickly during the cleaning operation, the dust cannot be completely collected in the dust box and the dust remains on the air filter surface. There is also a risk of falling. On the other hand, when the descending / raising speed is slow, the cleaning operation time becomes long, and the room temperature may deviate from the set temperature during that time.

In order to solve the above-mentioned problem, the invention described in claim 1 includes a housing having an air inlet and an air outlet and installed indoors, and an air filter is provided facing the air inlet. In addition, air reforming means and air blowing means are disposed in an air passage connecting the air inlet and the air outlet, and the room air passes through the air filter from the air inlet by the air blowing means. In the indoor unit for improving the indoor environment introduced into the air passage through the air passage and reformed by the air reforming means and sent out from the air outlet, dust attached to the air filter is removed from the dust. Filter cleaning means, filter drive means for moving the air filter relative to the filter cleaning means, and control means for operating the filter drive means in response to a filter cleaning request. It said control means comprises a manual cleaning mode is automatic cleaning mode and optionally set operated by a predetermined program as a filter cleaning operation mode, the automatic cleaning a moving speed of the air filter at the time of cleaning the air filter It is characterized in that it is faster in the manual cleaning mode than in the mode .

  The invention according to claim 2 includes a housing that is installed indoors with an air inlet and an air outlet, and is provided with an air filter facing the air inlet, An air reforming means and an air blowing means are arranged in an air passage connecting the air inlet and the air outlet, and the indoor air is passed from the air inlet to the air passage by the air blowing means. In an indoor unit for improving the indoor environment introduced into the interior and reformed by the air reforming means and sent out from the air outlet, dust attached to the air filter is removed to remove dust. Filter cleaning means for collecting the filter, filter driving means for moving the air filter relative to the filter cleaning means, and control means for operating the filter driving means in response to a filter cleaning request. Seen, the control means, the moving speed of the air filter at the time of cleaning the air filter is characterized by varying based on dust storage status in the dust storing portion, whereby it is also possible to solve the above problems.

In the present invention , if the indoor unit is an air conditioner, a heat exchanger is used as the air reforming unit, and if the indoor unit is an air cleaner, an electric dust collector, a HEPA filter, or the like is used. In addition, if the indoor unit is a dehumidifier, a heat exchanger or chemical dehumidifying means will be employed.

In order to solve the above-described problems, the present invention includes some aspects described below. That is, in the invention described in claim 3, the upper Symbol control means includes an automatic cleaning mode for automatically starting the filter cleaning based on accumulated operation time preset the indoor unit, the cumulative operation time sometimes a longer time than a predetermined value and the moving speed of the air filter, the cumulative period is characterized by increasing the times the moving speed of the air filter of time shorter than a predetermined value.

In the invention according to claim 4, upper Symbol control means includes a manual cleaning mode is optionally set, in the manual cleaning mode, when you are older than a predetermined time since the last filter cleaning The moving speed of the air filter is reduced, and when the predetermined time has not elapsed since the previous filter cleaning, the moving speed of the air filter is increased .

In the invention of claim 5, the upper Symbol control means varies the speed of movement of the air filter on the basis of the distribution of the dust adhesion amount with respect to the air filter, which is estimated by the shape of the air inlet and the air passage In addition, the moving speed of the air filter is slowed down at locations where the dust adhesion amount is large, and the moving speed of the air filter is increased at locations where the dust adhesion amount is small.

According to the invention of claim 6, upper Symbol dust storage situation definitive in claim 2, the light sensor including a light receiving element provided in the light emitting element and the other side provided on one side in the dust storing portion And / or detected by a weight sensor installed on the bottom surface of the dust container.

  According to the present invention, the dust adhering state of the air filter is judged and the filter cleaning operation speed is made variable, so that the dust adhering to the air filter can be accurately removed. In addition, when judging the dust adhesion status of the air filter, the filter cleaning operation speed can be varied in multiple stages, taking into account that the dust adhesion is not uniform, so that the dust on the air filter can be reliably and efficiently Can be removed.

  Also, during manual cleaning mode, filter cleaning in the manual cleaning mode is performed during the automatic cleaning mode, and it is determined that the amount of dust attached is relatively small. It can be removed reliably and in a short time.

  Furthermore, in the automatic cleaning mode, if the accumulated operating time of the air conditioner that automatically starts the filter cleaning is set longer than the standard, the amount of dust attached is large, whereas the accumulated operating time of the air conditioner is larger than the standard. When the setting is short, the amount of dust adhering is small, so the filter cleaning operation speed is made variable based on the accumulated operation time of the air conditioner, so that the dust adhering to the filter is accurately removed in the optimum operation time. can do.

  Furthermore, by providing a dust detection sensor in the dust box to detect the recovery amount level and controlling the filter cleaning according to the recovery amount level, it is possible to reliably prevent dust from overflowing from the dust box. it can.

  Next, some embodiments of the present invention will be described with reference to FIGS. 1 to 20, but the present invention is not limited thereto. As one of them, the embodiment described below is for an air conditioner (air conditioner), but the indoor unit of the present invention is not limited to this, for example, an air purifier or a dehumidifier. Also good.

  First, the basic configuration of the present invention will be described with reference to FIGS. An air conditioner to which the present invention is applied includes a control circuit 1 on the indoor unit side and a control circuit 2 on the outdoor unit side, and performs control necessary for room temperature control, while performing air control in an automatic cleaning mode or a manual cleaning mode. Cleaning control for automatically removing dust adhering to the filter 4 is performed. A microcomputer may be used for the control circuits 1 and 2.

  As shown in FIG. 2, the indoor unit has a cross-shaped air suction port 5 formed from the upper surface to the front side, and a part of the air filter 4 is disposed below the air suction port 5 when the air filter 4 is cleaned. Is provided with an opening / closing panel 6 that can be projected out of the indoor unit. This indoor unit is a wall-mounted type, and an air outlet 7 is provided on the lower surface side thereof, and an up-and-down air direction plate 8a and a left and right air direction plate 8b for changing the air blowing direction are provided in the air outlet 7. .

  In the air passage formed between the air inlet 5 and the air outlet 7, indoor heat exchangers 9 a, 9 b, 9 c as air reforming means having a lambda-type arrangement from the front side to the back side of the main body. Is provided, and an indoor fan 10 as an air blowing means is disposed on the inner side surrounded by the indoor heat exchangers 9a, 9b, 9c.

  As shown in FIGS. 3 and 4, the air filter 4 is a synthetic resin plate having fine flexibility, and is an air passage between the air inlet 5 and the indoor heat exchanger 9 b inside the indoor unit main body. The filter cleaning device 11 that cleans the air filter 4 is disposed near the open / close panel 6 below the air inlet 5.

  The filter cleaning device 11 includes a filter drive motor (stepping motor) 12 and a gear 13 for reciprocating the air filter 4 along the inner surface of the air suction port 5, and brushes 14 and 15 that are in contact with both surfaces of the air filter 4. A limit switch 16 for detecting the position of the air filter 4 and a dust box (dust storage portion) 17 that covers a part of the entire air filter 4 so as to sandwich the entire horizontal direction and has the brushes 14 and 15 inside. ing.

  Note that teeth that mesh with the gear 13 are formed in a part of the air filter 4 in a straight line in the vertical direction. During cleaning, the air filter 4 reciprocates (ascends) along the inside of the indoor unit body with respect to the dust box 17.・ Descent).

  The open / close panel 6 opens and closes with the upper end as a fulcrum, is pushed open by the lower end of the air filter 4 during cleaning, and is closed by spring means (not shown) when the air filter 4 is accommodated in the indoor unit. The limit switch 16 is disposed at a position close to the inlet of the dust box 17 (downstream in the moving direction of the air filter 4), and when the air filter 4 is at a position (normal position) corresponding to the air suction port 5. When the air filter 4 is cleaned by reciprocation, the air filter 4 is turned on. The dust box 17 is detachable from the indoor unit, and can be taken out of the indoor unit by opening the opening / closing panel 6.

  Further, the front side of the indoor unit is provided with a receiving unit for receiving a remote control signal from the remote control 3 and a main body display unit 18 for displaying information on the operation state and the filter cleaning device, and the indoor heat exchanger 9a is provided inside the main unit. , 9b, 9c are provided with a drain pan 19 for receiving condensed water dripping from the heat exchanger and discharging it to the outside of the room. The outdoor unit includes a four-way valve 20 and a compressor 21 that constitute a refrigeration cycle together with the indoor heat exchangers 9a, 9b, and 9c, and an outdoor fan 22.

  The indoor unit control circuit 1 controls the up / down wind direction plate 8a, the left / right wind direction plate 8b and the indoor fan 10 in accordance with the setting operation of the remote controller 3, and outputs the operation code of the compressor according to the difference between the room temperature and the set temperature to the outdoor unit. The signal is transmitted to the control circuit 2 on the machine side, and a signal necessary for room temperature control is exchanged with the control circuit 2, and the filter cleaning device 11 is controlled according to the setting operation of the remote controller 3.

  Therefore, the control circuit 1 controls the filter cleaning device 11 according to the determination unit 1a that determines the remote control signal, the state determination unit 1b that determines the operating state of the air conditioner, and the routines shown in FIGS. Use operation integration timer A, continuous operation integration timer B, auto clean operation integration timer C, timer unit 1c including a mask timer and cut-off timer, storage unit 1d, integration time and dust box 17 dust amount for determining cleaning operation Based on the state of the operation integration storage unit 1e and the limit switch 16 which store various integration times (operation integration time, continuous operation time, auto clean operation integration time, etc.) such as integration time for determination, the air filter 4 A function of the filter position determination unit 1f for determining the position is provided.

  The control circuit 2 on the outdoor unit side includes an operation mode determination unit 2a that determines an operation mode from the indoor unit side, a four-way valve control unit 2b that controls the four-way valve 20, and a compressor control unit that controls the compressor 21. 2c. Although not shown, the indoor unit and the outdoor unit are provided with other parts necessary for controlling the air conditioner.

  A first embodiment of the present invention in the case of an air conditioner having the above configuration will be described with reference to the flowcharts of FIGS. First, when the power of the air conditioner is turned on, the control circuit 1 on the indoor unit side executes a routine of auto clean operation (automatic cleaning mode) and the accumulated operation time obtained by the accumulated operation timer A is a predetermined value (for example, 2000 hours) is determined (step ST1).

  The predetermined value (running operation time; 2000 hours) is the longest time in order to inform the user of the cleaning time of the dust box 17 in advance and empirically determine the dust collection amount of the dust box 17 in advance. And stored in the accumulated operation time storage unit 1e. Similarly, for the other auto clean operation integration time (for example, 200 hours) described later, the shortest time is determined in consideration of the dust adhesion amount of the air filter 4, and for the continuous operation time (for example, 500 hours), the auto clean is performed. A time longer than the operation integration time is determined and stored in the operation integration time storage unit 1e.

  If the accumulated operation time has not reached 2000 hours, it is determined whether or not the limit switch 16 is in an off state (step ST2). If the air filter 4 is normally attached, the limit switch 16 is in an off state. Therefore, the process proceeds to step ST3 and it is determined whether or not a predetermined driving operation has been performed by the remote controller 3.

  When the user sets, for example, cooling operation or heating operation using the remote controller 3, the operation integration timer A, continuous operation integration timer B, and auto clean operation integration time timer C are started (step ST4). Thereby, the control circuit 1 and the control circuit 2 start operation, and perform control necessary for room temperature control. In this operation, the control circuit 1 controls the up / down wind direction plate 8a and the left / right wind direction plate 8b according to the operation mode of the setting operation, and controls the rotation of the indoor fan 10.

  During this operation, it is determined again whether or not the operation integration time obtained by the operation integration timer A has reached 2000 hours (step ST5). If the operation integration time has not reached 2000 hours, the operation integration timer C determines. It is determined whether or not the obtained continuous operation integrated time has reached a predetermined value (for example, 500 hours) (step ST6).

  When the accumulated operation time has reached 2000 hours, the process proceeds from step ST5 to ST7, the filter clean operation permission is set to one time, and step ST6 is executed. That is, if the air filter 4 is further cleaned, dust in the dust box 17 may overflow.

  If the current operation of the air conditioner has not been performed continuously for 500 hours, the process proceeds from step ST6 to ST8 to determine whether or not the operation has been stopped. If the operation is not stopped, the process returns to step ST5 and the above-described processing is repeated. If the operation is stopped before the current operation is continuously performed for 500 hours, it is determined whether or not the operation is stopped due to the time-up of the turn-off timer (step ST9).

  If the operation is not stopped due to the time-up of the turn-off timer, it is determined whether the auto clean operation is set to on or off (step ST10). When the filter cleaning operation is automatically performed, the auto clean operation and non-operation are set on and off in advance by using a button or a slide switch of the remote controller 3.

When the auto clean operation (automatic operation mode) is set to ON, it is determined whether or not the auto clean operation integration time obtained by the auto clean operation integration timer C has reached a predetermined value (for example, 150 or 200 hours). (Step ST11). The predetermined time (auto clean accumulated operating time) is settable to switch any remote control 3, for example, dust switched to 200 hours in the case in so not many situations, when in the dust many situations Can be switched to 150 hours.

  If the auto clean operation integration time has not reached 150 or 200 hours, it is determined that it is not necessary to perform the filter cleaning operation, and the routine is terminated with the operation stopped (step ST12). If it is determined in step ST10 that the auto-clean operation is set to OFF, the routine is terminated with the operation stopped (step ST12).

  If the auto clean operation integration time has reached 150 or 200 hours, it is determined whether or not the initialization process has been completed (step ST13). That is, prior to performing the filter cleaning operation, it is necessary to initialize the air conditioner. At the time of initialization, the orientations of the up and down wind direction plates 8a and the left and right wind direction plates 8b are returned to the state at the start of operation. .

  When the initialization is completed, the filter cleaning operation is started. First, the filter motor drive motor 12 is controlled, and the operation speed of lowering the air filter 4 is once set to the slowest 80 pps (pulse / second). The filter LED (the green side of the two colors) is turned on to notify the user that the filter cleaning operation has been started (step ST14). In the filter cleaning operation described later, when the dust adhesion amount of the air filter 4 is not uniform, the operation speed is 80 pps.

  Masking is performed for several seconds (for example, 5 seconds) (step ST15), or after 5 seconds is set to a predetermined number of pulses (motor drive pulse: 400), the filter lowering operation of the filter cleaning operation is started. The operation speed is varied according to the dust adhesion distribution of the air filter 4 or varied in multiple stages (step ST16). As an example, it is variable at predetermined intervals of 160 pps → 120 pps → 100 pps → 90 pps → 180 pps → 200 pps.

  As for this operation speed, for example, the dust adhesion state of the air filter 4 is empirically obtained in advance, and the portion where the adhesion amount is large is slowed, and the portion where the adhesion amount is small is accelerated. As for the dust adhesion state, the distribution of the dust adhesion of the air filter is estimated in advance by the structure of the indoor unit and the air flow rate, and the switching timing of the uneven pattern and the operation speed is stored in the internal memory.

  For example, when the air suction port 5 has a crosspiece shape as a dust adhesion state due to the structure of the indoor unit, a portion with a large amount of dust and a portion with a small amount of dust are unevenly distributed in a horizontal stripe pattern. For example, when the ultraviolet ray generator is disposed between the air filter 4 and the heat exchangers 9a and 9b, the dust adhering state due to the internal configuration of the indoor unit is a portion of the dust corresponding to the ultraviolet ray generator. The amount of adhesion is less uneven than other parts and unevenly distributed.

  Therefore, in the lowering operation of the air filter 4, the dust adhesion amount is estimated based on the operation time of the air conditioner so far, and the operation speed at the time of the lowering operation of the air filter 4 is determined according to the nonuniform pattern of the internal memory. The determined operation speed is switched at the switching timing of the internal memory. The dust adhesion amount is estimated based on the operation time of the air conditioner. However, the air flow rate may be taken into account, and although it is somewhat complicated, the change in the rotation speed of the indoor fan and the time are taken into account. It is more preferable.

  In this way, since the operation speed of the filter lowering is varied according to the dust adhesion distribution of the air filter 4, dust adhering to the air filter 4 is efficiently removed by the lowering operation, and the filter cleaning control is optimized. Is realized.

  During the lowering operation of the air filter 4, the filter drive motor 12 is controlled to determine whether or not the air filter 4 is reliably lowered depending on whether or not the limit switch 16 is turned on from off (step ST17). .

  That is, when the limit switch 16 is turned on, it is determined that the lowering operation of the air filter 4 is normal. Thereafter, when the limit switch 16 is turned off from the on state (step ST18), the off state is changed from the off state. It is determined whether or not it has continued for 5 seconds (step ST19).

  Before the limit switch 16 is kept off for 5 seconds (before the air filter 4 is lowered too much), it is determined whether or not the operation of the filter drive motor 12 in the downward direction is completed (step ST19). That is, it is determined whether or not the filter drive motor 12 has been driven by a preset number of pulses (for example, 8000 pulses), and when this drive is completed, the filter drive motor 12 is stopped (step ST20). In this case, as the air filter 4 descends, the lower end side of the air filter 4 pushes and opens the open / close panel 6, and one end of the air filter 4 jumps out to the front side of the indoor unit.

After the filter drive motor 12 is stopped, and the mask 2 seconds in order to stabilize the process proceeds to step ST21 shown in FIG. After the filter drive motor 12 has stopped reliably, it is determined whether or not the limit switch 16 is on (step ST22). If the limit switch 16 is on, the filter drive motor 12 is controlled (for example, operating speed; 80 pps), and the air filter 4 is raised (step ST23).

  Along with the ascending operation of the air filter 4, a predetermined time timer (for example, a 30 second timer) is started (step ST24), and it is determined whether or not the limit switch 16 is turned off (step ST25). The time of the predetermined time timer is at least a time required for the air filter 4 to surely return to the normal position, and may be obtained empirically in advance.

  When the air filter 4 returns to the normal position, the limit switch 16 is turned off. Therefore, the process proceeds from step ST25 to ST26, where it is determined that the air filter 4 has returned to the normal position, and the filter drive motor 12 is stopped. During the ascending operation of the air filter 4, the filter drive motor 12 is not controlled by the number of pulses as in the descending case, and the determination is made based on the state of the limit switch 16. That is, the air filter 4 needs to be surely returned to the normal position.

  Then, the continuous operation integration timer B, the auto clean operation integration timer C, and the 30-second timer are reset (step ST27). Further, since one filter clean operation permission is not set, the process proceeds from step ST28 to ST12, and the operation is started. The routine ends with the state stopped.

  By the way, if it is determined in step ST1 in the auto clean operation that the accumulated operation time of the air conditioner has reached 2000 hours or more, the process proceeds to step ST29 in FIG. 7 and the LED (red) of the main body display unit 18 is turned on or blinked. The user is urged to clean (maintenance) the dust box 17.

  This determines whether or not the reset switch of the air conditioner has been pressed by the user (step ST30). When the dust box 17 is cleaned and then attached to the filter cleaning device 11, the operation integration timer A is measured in order to measure the operation integration time. This is because it is necessary to make a restart. Although the reset switch is provided in the indoor unit main body or the remote controller 3, for example, assuming that the remote controller 3 cannot be used, it may be shared with an emergency operation button for operating the air conditioner.

  If the reset switch has not been pressed, the filter cleaning operation is prohibited because the dust box 17 is not cleaned (step ST31). That is, as will be described later, the user can arbitrarily perform the filter cleaning operation by operating the remote controller 3.

  If the reset switch is pressed, the operation integration timer A is reset (step ST32), the lit LED (red) is turned off (step ST33), and the user can know that the filter cleaning operation is possible. .

  If it is determined in step ST2 that the limit switch 16 is not in the off state, the process proceeds to step ST34 in FIG. 8 to determine whether the limit switch 16 is continuously on for 10 seconds.

  If the limit switch 16 continues and is not on for 10 seconds, for example, the air filter 4 is temporarily floated due to an earthquake or the like, and the limit switch 16 is momentarily turned on. It returns to step ST1 and repeats the process mentioned above.

  On the other hand, if the limit switch 16 is continuously on for 10 seconds, the air filter 4 is not attached or is not in a normal position, for example, the air filter 4 is slightly lowered. Determination is made to move the filter drive motor 12 in the upward direction (operation speed; 80 pps), and the automatic filter increase counter (increase counter) is set in the operating state (step ST35).

  Subsequently, it is determined whether or not the count of the rising counter is “3” (step ST36). If the lifting operation of the air filter 4 is not repeated three times, a 30-second timer is started (step ST37). After masking for 5 seconds (step ST38) or setting the 5 seconds to a predetermined number of pulses (motor drive pulse: 400), the operation speed of the filter drive motor 12 is set to 180 pps, which is faster than 80 pps, and the ascending operation is accelerated (step ST39 ).

  If the limit switch 16 is turned off before the 30-second timer expires (steps ST40 and ST41), it is determined that the air filter 4 has been raised and returned to the normal position, and the filter drive motor 12 is stopped (step S40). ST42).

  Since the air filter 4 is in the normal position, there is no need to correct the position of the air filter 4, so the ascending counter is reset (step ST43), the process returns to step ST1 and the above-described processing is repeated.

  However, if the limit switch 16 is not turned off even after the 30-second time has elapsed, the process proceeds from step ST41 to ST44, where the filter drive motor 12 is temporarily stopped and the increase counter is incremented (+1) (step ST45).

  Subsequently, after masking for 2 seconds (step ST46), the process returns to step ST35 and the above-described processing is repeated. If the limit switch 16 is turned off before the process is repeated three times, the above process is performed. If the limit switch 16 is repeated three times and the count value of the rise counter becomes “3”, the process starts from step ST36. Proceeding to step ST47 in FIG. 9, a filter mounting error is set and displayed on the main body display unit 18, and the filter increase counter is reset. The filter attachment error is displayed by, for example, blinking the LED (green) on the body display unit 18 (on for 0.1 seconds / off for 0.1 seconds).

  Thus, while notifying the user of the filter mounting error, it is determined whether or not the air conditioner is operating (step ST48). If the air conditioner is in operation, since the air filter 4 is not in a normal state, the operation is prohibited and operation stop is confirmed (steps ST49 and ST50).

  Subsequently, a 3-minute timer is started (step ST51), and it is determined whether or not the limit switch 16 is turned off in order to confirm the mounting of the air filter 4 during the time-up of the 3-minute timer. If 16 is on, it is determined whether the operation of the air conditioner has been started (steps ST52, ST53, ST54).

  For example, when the limit switch 16 is turned off due to the user removing and reattaching the air filter 4, the process proceeds from step ST53 to ST55, the filter attachment error is reset, and the filter on the main body display unit 18 is attached. The error is turned off and the process returns to step ST1 to repeat the above-described processing. Even when the operation of the air conditioner is started, the process proceeds from step ST54 to ST55, the filter mounting error is reset, the filter mounting error of the main body display unit 18 is turned off, the process returns to step ST1, and the above-described processing is repeated.

  If the limit switch 16 is not turned off before the 3-minute timer expires and the air conditioner operation is not started, the filter installation error is notified to the user, and then the process proceeds from ST52 to ST56 to reset the filter installation error. Then, the filter mounting error in the main body display unit 18 is turned off, the Eccoan operation is stopped including the filter cleaning operation, and the routine is terminated (step ST12).

  When it is determined in step ST9 of the auto clean operation that the time is up due to the turn-off timer, that is, when the user sets the turn-off timer for going to bed and the time is up due to the elapse of the set time, the step of FIG. Proceeding to ST57, the auto-clean operation is prohibited, and it is determined whether or not the operation integration time by the auto-clean operation integration timer B is equal to or longer than a predetermined value (a time longer than the set 200 hours; for example, 400 hours) (step ST58). ).

  If the accumulated operation time has not reached 400 hours, there is no problem even if the air filter 4 is not cleaned at least as soon as possible, so the process proceeds from step ST58 to ST12, the operation is stopped, and the routine is terminated. On the other hand, when the accumulated operation time is 400 hours or more, since the auto-cleaning operation has not been performed for 400 hours or more, it is determined that dust, dirt, etc. of the air filter 4 are in a severe situation. Proceeding from ST55 to ST14, the above-described processing (auto clean operation) is performed.

  Further, in step ST17 of the auto clean operation, when it is determined that the limit switch 16 has not been turned on from the off state, that is, when the forward cleaning is performed to start the auto clean operation and lower the air filter 4, step ST59 in FIG. If it is determined that the air filter 4 is not lowered, it is determined that the air cleaning operation is not performed and the filter drive motor 12 is stopped.

  Subsequently, the filter LED (green) on the main body display unit 18 blinks, for example (on for 0.5 seconds / off for 0.5 seconds) to display a filter installation error (step ST60), and masks for 3 minutes. It is determined whether or not the limit switch 16 is turned on during the minute mask (step ST61).

  If the limit switch 16 is not turned on, the LED (flashing green) on the main body display unit 18 is turned off to temporarily stop the filter mounting error display, and the process proceeds from step ST62 to step ST34 in FIG. , Perform position correction processing.

  When the limit switch 16 is turned on, the filter LED (blinking green) of the main body display unit 18 is turned off at that time, the filter mounting error display is temporarily stopped, and the process proceeds from step ST63 to step ST34 in FIG. Check the mounting and correct the position.

  In step ST18 in the auto clean operation, when it is determined that the OFF state of the limit switch 16 continues for 5 seconds, that is, when it is determined that the air filter 4 is not normally lowered, the process proceeds to step ST64 in FIG. The advance filter drive motor 12 is temporarily stopped and the above-described processing is executed.

  Further, when it is determined in step ST22 of FIG. 6 that the limit switch 16 is not in the on state, the air filter 4 is detached from the filter cleaning device 11 due to, for example, the lowering operation of the filter drive motor 12, and the limit switch 16 is in the off state. Also at this time, the process proceeds to step 60 in FIG.

  Furthermore, in step ST25 of FIG. 6, when the limit switch 16 is not turned off, that is, when the air filter 4 is raised and the 30-second timer expires during the return path cleaning (step ST65), the air filter 4 is in a normal position. Therefore, the filter drive motor 12 is stopped and masked for 2 seconds (steps ST66 and ST63). Thereafter, the process proceeds to step ST35 of FIG. 8 to execute the above-described processing (filter position correction processing).

  In this way, the filter clean operation is performed in accordance with the auto clean operation ON setting or the auto clean operation integration time setting by the remote controller 3, so that the filter clean operation corresponding to the operating condition of the air conditioner is possible.

  In other words, by switching the auto clean operation integration time to either 150 hours or 200 hours as an example according to the degree of dirt in the room air, it is not necessary to perform unnecessary air filter cleaning, and the cleaning efficiency can be improved. Energy saving can be achieved.

  Further, as a condition for performing the filter clean operation, it is possible not to include the time when the operation is stopped due to the time-up of the turn-off timer in order to prevent the filter from being cleaned while sleeping. In the above-described first embodiment, the cleaning time of the air filter 4 is automatically determined and the auto-cleaning operation is performed.

  Therefore, when the user operates the cleaning button of the remote controller 3, a manual filter clean signal is transmitted from the remote controller 3, and the control circuit 1 receiving this signal performs the manual clean operation (manual cleaning shown in FIGS. 12 to 14). Mode) routine is executed, and the filter cleaning device 11 is controlled to clean the air filter 4.

  First, it is determined whether or not the operation integration time obtained by the operation integration timer A has reached a predetermined value (for example, 2000 hours) (step ST70). If the accumulated operation time has not reached 2000 hours, it is determined whether or not the air conditioner is in operation (step ST71). If the accumulated operation time has reached 2000 hours, the filter clean operation is permitted. 1 time is set (step ST72), it progresses to step ST71, and it is judged whether the said air conditioner is operating.

  If the air conditioner is in operation, the operation is interrupted (step ST73). If the air conditioner is not in operation, it is maintained and the filter LED (green) of the main body display unit 18 is turned on, and the manual clean operation is started. Notification is made (step ST74).

  Subsequently, it is determined whether or not a filter mounting error is in operation (step ST75). For example, a filter mounting error may be set in the above-described auto clean operation, and it is not preferable to perform the manual clean operation in such a situation.

  If the filter mounting error is not in operation, it is determined whether or not the limit switch 16 is in an off state (step ST76). If the limit switch 16 is in the OFF state, the filter drive motor 12 is driven assuming that the air filter 4 is in a normal position, but its operation speed is once set to the lowest 80 pps (step ST77).

  Subsequently, after 5 seconds are maxed (step ST78), or 5 seconds is set to a predetermined number of pulses (motor drive pulse; 400), the dust adhesion state of the air filter 4 is determined, and the same as in the automatic cleaning mode. The process is executed to vary the operation speed, for example, in multiple stages (step ST79). Thereby, even if the dust adhesion of the air filter 4 is not uniform, for example, as in the automatic cleaning mode, the dust is accurately removed.

  After starting the lowering operation of the air filter 4, it is determined whether or not the limit switch 16 has been turned on from off (step ST80). After the limit switch 16 is turned on, it is turned off and it is determined whether or not the off state continues for 5 seconds (step ST81).

  If the limit switch 16 has not been in the OFF state for 5 seconds, it is determined whether or not the operation of the filter drive motor 12 has been completed, assuming that the forward cleaning is being smoothly performed by the lowering operation of the air filter 4. (Step ST82). When this lowering operation is completed, the filter drive motor 12 is stopped (step ST83).

  After being stabilized after masking for 2 seconds (step ST84), it is determined whether or not the limit switch 16 is in an ON state (step ST85). This is for confirming that the air filter 4 is lowered too much and the limit switch 16 is not turned off.

  If the limit switch 16 is on, the air filter 4 is lowered and it is determined that the forward cleaning is completed, and the filter drive motor 12 is moved in the upward direction. The operation speed is set to 80 pps, for example (step ST86). . After the filter ascending operation (return path) is started, the process proceeds to step ST87 in FIG. 13 and a 30 second timer is started.

  After masking for 5 seconds (step ST88) or setting the 5 seconds to a predetermined number of pulses (motor drive pulse; 400), the ascending operation speed of the air filter 4 is increased to 160 pps (step ST89). That is, it is preferable that dust is almost removed during the lowering operation of the air filter 4 and that the cleaning operation is completed as quickly as possible in front of the user or the like.

  In the filter raising operation, it is determined whether or not the limit switch 16 is turned off (step ST90). If the limit switch 16 is turned off, the return path cleaning is smoothly performed by the ascending operation of the air filter 4, and it is determined that the air filter 4 has returned to the normal position, and the filter drive motor 12 is stopped (step ST91). As will be described later, when the automatic clean operation integration timer B and the continuous operation integration timer C are started, the timers B and C are reset (step ST92).

  Subsequently, in order to notify that the manual clean operation is finished, the filter LED of the main body display unit 18 is turned off (step ST93), and it is determined whether or not the filter clean operation permission set in step ST72 is completed. Judgment is made (step ST94).

  If the filter clean operation permission is not completed once, it is determined whether or not the air conditioner has been operated immediately before the execution of the routine (step ST95). The routine is ended by returning to the operation state (the previous operation) stored in the memory (step ST96). If the operation is not in operation, the process proceeds from step ST95 to step ST12 in FIG. 6 and includes the manual clean operation. Stop. In other words, the remote controller 3 can be operated.

  In the present invention, the auto clean operation routine and the manual clean operation routine can be used with each other. That is, when it is determined in step ST75 in the above-described manual clean operation that the filter mounting error operation is in progress, the process proceeds to step ST97 in FIG. 14 to prohibit the filter clean operation (manual clean operation) and filter LED (green) on the main body display unit 18. ) Blinks at short intervals and displays a filter installation error. If a filter mounting error is being displayed, it is continued.

  Subsequently, it is determined whether or not the limit switch 16 is in an on state (step ST98). If the limit switch 16 is in an off state, for example, it is determined that the air filter 4 is simply displaced, and the process proceeds to step ST48 in FIG. Then, the process for checking the filter mounting described in the auto clean operation and the process after the process are executed.

  If the limit switch 16 is in the OFF state, the process proceeds from step ST98 to ST99, where it is determined whether or not the air conditioner is in operation when the manual clean operation signal is input by the remote controller 3. If not, step ST61 in FIG. The process for correcting the filter position and confirming the filter attachment described in the auto clean operation and the processes after the process are executed. When the vehicle is in operation, the operation stop state is confirmed (step ST100), and then the process proceeds to step ST61 to execute the above-described processing.

  If it is determined in step ST76 in the manual clean operation that the limit switch 16 is not in the OFF state, that is, if there is a problem with the filter mounting, the process proceeds to step ST34 in FIG. 8 to correct the filter position and filter mounting described in the auto clean operation. Processing for confirmation and subsequent processing are executed.

  In step ST80 where the manual clean operation is started, when it is determined that the limit switch 16 remains off because the air filter 4 is not lowered or the air filter 4 is not mounted, step ST101. Then, it is determined that the air filter 4 is not present, the filter LED (green) blinks, for example (on for 0.1 seconds / off for 0.1 seconds), and then returns to step ST99 in FIG. 14 to repeat the above-described processing.

  When it is determined in step ST81 during the filter lowering operation of the manual clean operation that the limit switch 16 remains off for 5 seconds, the filter drive motor 12 is stopped (step ST102), and then FIG. The process proceeds to step ST60, and the processing for filter position correction and filter mounting confirmation described in the auto clean operation and the processing after the processing are executed. Further, when it is determined in step ST85 that the limit switch 16 is in the OFF state, the process proceeds to step ST60 and the processing for filter position correction and filter mounting confirmation described in the auto clean operation and the processing after the processing are executed. .

  In step ST90 during the filter raising operation of the manual clean operation, if the limit switch 16 is not turned off and remains on, the process proceeds to step ST103, and whether or not the 30-second timer started in step ST87 has expired. Judging.

  If the air filter 4 does not rise and return to the normal position within 30 seconds from the start of raising the air filter 4, the filter drive motor 12 is stopped (step ST104) and stabilized by a 2 second mask (step ST105), the process proceeds to step ST35 in FIG. 8, and the processing for filter position correction and filter mounting confirmation described in the auto clean operation and the processing after the processing are executed.

  In step ST94 of the manual clean operation, when the filter clean operation permission is set to one time, the accumulated amount of operation is 2000 hours or more, so the amount of dust in the dust box 17 is increased. Is permitted only once, the process proceeds from step ST94 to step ST29 in FIG. 7 to prompt the user to clean the dust box 17 and to perform an auto clean operation or manual clean operation.

  Thus, even in the manual clean operation, the same effect as the auto clean operation is achieved. In the auto clean operation, when the continuous operation integration timer C is adopted and the continuous operation integration time of the air conditioner is longer than the auto clean operation integration time, the air filter 4 is automatically cleaned by the routine processing of the manual clean operation. For example, a decrease in air conditioning efficiency and an increase in electricity bill due to clogging of the air filter 4 can be suppressed.

  In the second embodiment of the present invention, the lowering and raising operation speeds of the air filter 4 in the manual cleaning mode are made faster than those in the automatic cleaning mode, and the waiting time for the user or the like in the filter cleaning control is shortened. That is, the user cleans the air filter 4 in the manual cleaning mode by operating the remote controller 3 during the filter cleaning interval in the automatic cleaning mode, and the amount of dust attached to the air filter 4 is not large and the air filter 4 This is because even if the lowering and raising operation speed is increased, dust removal is not affected.

  A second embodiment will be described with reference to the routines of FIGS. 15 and 16. 15 corresponds to FIG. 12 of the first embodiment, and FIG. 16 corresponds to FIG. 13 of the first embodiment. The same processes are denoted by the same reference numerals, and redundant description is omitted.

  In the routine of FIG. 15, the processes of steps ST77 to ST79 of FIG. 12 are replaced with steps ST200 and ST201. When the air filter 4 is moved downward when the manual cleaning mode is being executed, it is masked for 5 seconds at least as an operation speed (160 pps) higher than normal (for example, operation speed in the automatic cleaning mode) (step ST200), or The five seconds are set to a predetermined number of pulses (400 pulses) (step ST201).

  In addition, the process of step ST86 in FIG. 12 is replaced with step ST202, and when the air filter 4 is lifted, the operation speed is set to be at least faster than normal (160 pps). In the routine of FIG. 16, step ST89 of FIG. 13 is omitted, and the operation speed of step ST202 is maintained.

  As described above, in the manual cleaning mode, the air filter 4 descends and rises faster, and therefore the filter cleaning operation time is shortened. The convenience of the user without affecting the cleaning of the air filter 4 and the rationalization of the air filter cleaning. Is planned.

  In the automatic cleaning mode, the operation speed in the processing of steps ST200 and ST202 is set to 80 pps, which is because the amount of dust attached to the air filter 4 is large, and in the manual cleaning mode. Since the amount of dust adhering to the air filter 4 is small, there is no problem even if the lowering and raising operation speed of the air filter 4 is increased.

  In the third embodiment of the present invention, when the filter is cleaned in the automatic cleaning mode when the operation is stopped, the value set by the user (the value corresponding to the auto clean operation integration time) is the standard of the air conditioner (for example, 200). The speed of the filter cleaning operation is varied when the time is less than (time) and when the time is longer.

  In other words, it is possible to estimate that the dust adhesion amount of the air filter 4 is small if the auto clean operation integration time that is the start judgment of the filter cleaning operation is short, and that the dust adhesion amount is large if the time is long. is there.

  In the manual cleaning mode, the speed of the filter cleaning operation is varied according to the time from the previous filter cleaning operation (automatic cleaning or manual cleaning) to the start of the current manual cleaning. That is, if the time is short, it can be estimated that the dust adhesion amount of the air filter 4 is small, and if the time is long, it can be estimated that the dust adhesion amount is large.

  The third embodiment will be described with reference to the routines shown in FIGS. 17 corresponds to FIG. 5 of the first embodiment, and FIG. 18 corresponds to FIG. 12 of the first embodiment. The same processes are denoted by the same reference numerals, and redundant description is omitted. In the routine of FIG. 17, steps ST11, ST13 and ST14 of FIG. 5 are replaced with steps ST300 to ST304, and step ST16 of FIG. 5 is omitted.

  When the automatic cleaning mode is set, when the auto-cleaning operation time (running integration time) by the integration time timer B reaches a set value, the process proceeds from step ST300 to ST301, and whether or not the set value is less than 200 hours. Judging. When the auto clean operation time has not reached 200 hours, the process proceeds from step ST300 to ST12 in FIG. 6, and the same processing as in the previous embodiment is executed.

  When the user has set the auto clean operation integration time to less than 200 hours with the remote controller 3, the process proceeds from step ST301 to ST302, the filter operation speed is set to a higher 120pps, and the user sets 200 hours or more. If YES, the process proceeds from step ST301 to ST302, and the filter operation speed is set to the lowest 80 pps. The filter drive motor 12 is driven at the set operation speed to lower the air filter, and the filter LED is turned on (green) as in the previous embodiment (step ST304).

  In the routine of FIG. 18, steps ST310 to ST312 are added as preprocessing of step ST70 of FIG. 12, and step ST79 of FIG. 12 is omitted. When the manual cleaning mode is set to stop operation, it is determined whether or not 200 hours have passed since the previous filter cleaning operation (step ST310).

  After the filter cleaning operation in the manual cleaning mode or the automatic cleaning mode, when the time until the setting of the current filter cleaning operation is less than 200 hours, it is estimated that the dust adhesion amount of the air filter 4 is small, and the operation speed of the filter drive motor 12 Is set to a higher 120 pps, and when the time is 200 hours or longer, it is estimated that the amount of dust adhering to the air filter 4 is large, and the operation speed is set to a low 80 pps.

  Then, the filter cleaning operation is performed in the same manner as in the embodiment before step ST70, but the descending operation speed in step ST77 and the ascending operation speed in step ST86 are varied according to the dust adhesion amount of the air filter 4. . The other routines are the same as the processing (Example 2) in which step ST89 shown in FIG. 13 is omitted.

  As described above, the dust operation amount is estimated by varying the dust adhesion amount of the air filter 4, so that dust removal is accurately performed, and the filter cleaning operation is optimally performed.

  A fourth embodiment of the present invention will be described with reference to the filter cleaning device 11 of FIG. 19 and the operation flowchart of FIG. In the fourth embodiment, the recovery amount of the dust box 17 is detected by a sensor for sensing a physical quantity, and the dust adhesion state of the air filter 4 is also determined according to the detected recovery amount, so that the filter cleaning operation cannot be performed. Controls the filter cleaning operation.

  19 and 3, the dust box 17 of the filter cleaning device 11 has a shape that sandwiches the air filter 4 from both sides, and the dust box 17 a corresponding to the front side of the air filter 4 has a large amount of dust collection, and the dust detection sensor 30. Is arranged.

  The dust detection sensor 30 includes, for example, a light emitting unit 30a arranged on one side of the dust box 17a and a light receiving unit 30b arranged on the other side, or a plurality of pairs arranged in the vertical direction. In addition, as the sensor, a plurality of sensors (weight sensors) 30c may be arranged in a horizontal row on the bottom surface of the dust box 17a.

  As shown in FIG. 1, when the detection signal from the dust detection sensor 30 is input to the control circuit 1 of the indoor unit, the control circuit 1 determines the dust collection status of the dust box 17 by the box state determination unit 1g based on the detection signal. In addition, the sound generation unit 31 notifies that the filter cleaning operation cannot be performed depending on the dust collection amount of the dust box 17. In addition, it is good for the audio | voice generation | occurrence | production part 31 to combine with what alert | reports the said driving | running state (cooling or heating state).

  Next, the operation of the filter cleaning device 11 configured as described above will be described with reference to the flowchart of FIG. 20. When the air conditioner is turned on or the filter cleaning operation is completed, the control circuit 1 is turned on. This routine is executed.

  First, the dust collection amount of the dust box 17 is determined based on the detection signal from the dust detection sensor 31 (step ST400), and it is determined whether or not the determined dust collection amount has reached a certain threshold value (limit value). (Step ST401). The limit value means a state in which dust is dropped and cannot be recovered when the filter cleaning operation is further performed.

  When the dust collection amount has not reached the limit, the process proceeds from step ST401 to ST402, and it is determined whether or not the filter cleaning operation start condition is satisfied. For example, if the filter cleaning operation is performed by the remote controller 3 and the conditions for starting the filter operation are not satisfied, the condition waiting is executed (steps ST403 and ST402).

  On the other hand, when the dust collection amount has reached the limit, the process proceeds from step ST401 to ST404, the filter cleaning operation start is disabled, and the LED of the main body display unit 18 is lit (red LED is lit or flashes), The sound generation unit 31 also notifies that the filter cleaning operation is disabled (step ST405), and prompts the user to clean the dust box 17. After this notification, the process returns from step ST405 to ST403 to wait for the above-described filter cleaning operation start condition.

  Subsequently, when the start condition for the filter cleaning operation is reached, the dust collection amount of the dust box 17 is again determined based on the detection signal from the dust detection sensor 31 (step ST406). If the detection signal is not obtained and the dust collection amount is not determined, the process proceeds from step ST407 to ST408, the dust box 17 is not properly attached, the filter cleaning operation start is disabled, and the main body display unit 18 is further set. LED is turned on (red LED is turned on or blinking), and the sound generator 31 also notifies that the dust box 17 is not normally attached (step ST409). After this notification, the process returns from step ST409 to ST403 to wait for the above-described filter cleaning operation start condition.

  When the detection signal is obtained and the dust recovery amount is determined, the process proceeds from step ST407 to ST410, and it is determined again whether or not the determined dust recovery amount has reached a certain threshold value (limit value). When the dust collection amount has reached the limit value, the process returns from step ST410 to ST404 and the above-described processing is repeated. When the dust collection amount has not reached the limit value, the collection amount is close to the limit value (level A) (level B; <Level A) is determined, that is, whether the dust is not collected and does not fall even if the filter cleaning operation is performed (step ST411).

  When the dust collection amount does not reach level A but reaches level B, the speed of the filter cleaning operation is set to a value slower than the standard speed (for example, the average value of the operation speed range), and the filter cleaning operation is performed. (Step ST412), the LED is turned on (the red LED is turned on or blinks), and the sound generator 31 also recommends the filter cleaning operation (step ST413), and the dust box 17 should be cleaned early. Prompt. That is, dust is not collected in the dust box 17 and is prevented from falling.

  Since the filter cleaning operation can be performed at least once, when the filter cleaning operation is set or is set, the filter cleaning operation is started (step ST414).

  When the amount of dust collected has not reached level B, it is determined that there is no problem in the processing of steps ST406, ST407, and ST410, the filter operation frequency limit is reset, the LED (red) is turned off, and this is notified ( Step ST415), for example, notifies the user that the dust box 17 has been cleaned. Thereafter, the process proceeds from step ST415 to ST414, and if the filter cleaning operation is set or is set, the filter cleaning operation is started.

  In this way, stable dust collection can be realized during the cleaning operation of the air filter 4 regardless of the amount of dust collected in the dust box 17 or the quality of the collected dust, etc., and dust does not overflow or fall. In addition, fine control can be performed according to the amount of dust collected in the dust box 17, and the filter cleaning operation can be optimized.

  The dust collection amount of the dust box 17 can also be used to determine the dust adhesion state of the air filter 4 when the operation time of the air conditioner and the number of times of the filter cleaning operation are combined. Therefore, when the fourth embodiment is applied to the first embodiment, the dust adhesion distribution and the non-uniformity of the air filter 4 can be determined more accurately, and the non-uniform dust adhesion can be accurately recovered. .

  The dust recovery status according to the fourth embodiment may be replaced with the dust adhesion status of the second and third embodiments, and the speed of the filter cleaning operation may be varied. In addition, the dust collection status according to the fourth embodiment may be added to the dust adhesion status of the second and third embodiments to contribute to a greater effect. Furthermore, by applying any combination of the first to fourth embodiments, the filter cleaning operation can be optimized by contributing to a greater effect.

  As mentioned above, although this invention was demonstrated taking the indoor unit of the air conditioner as an example, this invention is widely utilized also for the indoor unit for improving the indoor environment which has an air filter, for example, an air cleaner, a dehumidifier, etc. Can do.

The schematic block diagram which shows the control apparatus of the air conditioner to which this invention is applied. Typical sectional drawing which shows the internal structure of the indoor unit of the said air conditioner. The typical side view of the air filter cleaning apparatus provided in the indoor unit of FIG. The typical front view which shows the air filter with which the indoor unit of FIG. 2 is mounted | worn. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 1 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 2 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 2 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 3 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 3 of this invention. The typical perspective view which shows the filter cleaning apparatus which concerns on Example 4 of this invention. The flowchart figure explaining the operation | movement which concerns on Example 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit control circuit 1a Determination part 1b State determination part 1c Timer part 1d Storage part 1e Operation integration storage part 1f Filter position determination part 1g Box state determination part 2 Outdoor unit control circuit 3 Remote control 4 Air filter 5 Air inlet 6 Opening and closing panel 9a, 9b, 9c Indoor heat exchanger 11 Filter cleaning device 12 Filter drive motor 13 Gear 14, 15 Brush 16 Limit switch 17 Dust box 18 Main body display unit 30 Dust detection sensor 30a Dust detection sensor light emitting unit 30b Dust detection Light receiving unit 30c Weight sensor 31 Sound generator A Operation integration timer B Auto clean operation integration timer C Continuous operation integration timer

Claims (6)

A housing having an air inlet and an air outlet is provided, and an air filter is provided facing the air inlet and connects the air inlet and the air outlet. Air reforming means and air blowing means are disposed in the air passage, and indoor air is introduced into the air passage from the air inlet through the air filter by the air blowing means. In the indoor unit for improving the indoor environment that is reformed and sent out from the air outlet,
Filter cleaning means for removing dust adhering to the air filter, filter driving means for moving the air filter relative to the filter cleaning means, and control means for operating the filter driving means in response to a filter cleaning request Including
The control means includes an automatic cleaning mode that operates according to a program set in advance as a filter cleaning operation mode and a manual cleaning mode that is arbitrarily set, and the moving speed of the air filter during air filter cleaning is determined by the automatic cleaning. An indoor unit characterized in that it is faster in the manual cleaning mode than in the mode . A housing having an air inlet and an air outlet is provided, and an air filter is provided facing the air inlet and connects the air inlet and the air outlet. Air reforming means and air blowing means are disposed in the air passage, and indoor air is introduced into the air passage from the air inlet through the air filter by the air blowing means. In the indoor unit for improving the indoor environment that is reformed and sent out from the air outlet,
Filter cleaning means that removes dust adhering to the air filter and collects it in a dust container, filter drive means for moving the air filter relative to the filter cleaning means, and the filter in response to a filter cleaning request Control means for operating the drive means,
The indoor unit according to claim 1, wherein the control means varies the moving speed of the air filter during air filter cleaning based on a dust storage state in the dust container. A housing having an air inlet and an air outlet is provided, and an air filter is provided facing the air inlet and connects the air inlet and the air outlet. Air reforming means and air blowing means are disposed in the air passage, and indoor air is introduced into the air passage from the air inlet through the air filter by the air blowing means. In the indoor unit for improving the indoor environment that is reformed and sent out from the air outlet,
A filter cleaning means for removing dust and dirt adhering to the upper Symbol air filter, a filter driving means for moving the air filter relative to said filter cleaning means, a control for operating said filter driving means in accordance with the filter cleaning request Means,
Said control means includes an automatic cleaning mode to start the filter cleaning based on accumulated operation time preset the indoor unit automatically, the accumulated operation time is sometimes the air filter of time greater than a predetermined value the moving speed is slow, sometimes chamber machine you characterized in that the moving speed of the air filter of the cumulative time is shorter than a predetermined value. A housing having an air inlet and an air outlet is provided, and an air filter is provided facing the air inlet and connects the air inlet and the air outlet. Air reforming means and air blowing means are disposed in the air passage, and indoor air is introduced into the air passage from the air inlet through the air filter by the air blowing means. In the indoor unit for improving the indoor environment that is reformed and sent out from the air outlet,
A filter cleaning means for removing dust and dirt adhering to the upper Symbol air filter, a filter driving means for moving the air filter relative to said filter cleaning means, a control for operating said filter driving means in accordance with the filter cleaning request Means,
The control means includes a manual cleaning mode that is arbitrarily set, and in the manual cleaning mode, when a predetermined time or more has elapsed since the previous filter cleaning, the moving speed of the air filter is reduced, chamber machine you characterized in that the moving speed of the air filter when the predetermined time has not elapsed since the previous filter cleaning. A housing having an air inlet and an air outlet is provided, and an air filter is provided facing the air inlet and connects the air inlet and the air outlet. Air reforming means and air blowing means are disposed in the air passage, and indoor air is introduced into the air passage from the air inlet through the air filter by the air blowing means. In the indoor unit for improving the indoor environment that is reformed and sent out from the air outlet,
A filter cleaning means for removing dust and dirt adhering to the upper Symbol air filter, a filter driving means for moving the air filter relative to said filter cleaning means, a control for operating said filter driving means in accordance with the filter cleaning request Means,
The control means makes the moving speed of the air filter variable based on the distribution state of the dust adhesion amount to the air filter estimated by the shape of the air suction port and the air passage, and in a place where the dust adhesion amount is large, and the moving speed of the air filter, chamber machine you characterized in that the moving speed of the air filter in a small place dust adhesion amount.   The dust storage status is detected by an optical sensor including a light emitting element provided on one side surface and a light receiving element provided on the other side surface in the dust storage unit and / or a weight sensor installed on the bottom surface of the dust storage unit. The indoor unit according to claim 2, wherein:

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