JPWO2006049060A1 - Air conditioner - Google Patents

Abstract

An air conditioner having an indoor unit with an air filter automatic cleaning function, which collects dust in the air, and can move in the left-right direction of the indoor unit along the air filter and adheres to the air filter And a suction nozzle having a suction hole for sucking dust, and further provided with an operating means for immediately performing automatic cleaning of the air filter. Alternatively, operation means for selecting start and stop of the normal operation including at least the cooling operation and the heating operation is provided, and the air filter is automatically cleaned when the normal operation is stopped.

Description

  The present invention relates to an air conditioner having an indoor unit with an air filter automatic cleaning function.

  FIG. 9 shows an indoor unit 901 of a conventional air conditioner. As shown in FIG. 9, air sucked by a fan 902 is cooled or heated by a heat exchanger 903 and then blown into the room. An air filter 904 is provided on the back of the suction port of the indoor unit 901 to prevent dust drifting in the sucked air from entering the inside of the main body of the indoor unit 901. The air filter 904 cleans the attached dust by hand. It is configured to be detachable so that it can.

In addition, as an air conditioner that can easily clean an air filter, a belt-like filter that is fed / wound by a motor, a dust removing member that removes dust attached to the filter, and a dust box that collects dust scraped off by the dust removing member There is known a filter apparatus having a filter device installed on the back surface of the suction panel suction port (see, for example, Patent Document 1).
JP 2001-99479 A

  However, the air conditioner shown in FIG. 9 requires periodic maintenance in which the air filter 904 is removed from the indoor unit 901 in accordance with the frequency of use and is washed with water or cleaned with dust or the like. In addition, when regular maintenance is not performed, dust accumulates on the air filter 904 and the ventilation resistance of the intake air increases, so that there is a problem that the performance of the air conditioner decreases and the power consumption increases.

  Further, in the configuration described in Patent Document 1, dust attached to the band-shaped filter wound up or down by the drive motor is collected in the dust box, so that the dust is discarded before the dust exceeds the holding amount in the dust box. And had the problem of requiring regular maintenance.

  The present invention has been made in view of such problems of the prior art, and provides an air conditioner with improved convenience that does not require periodic maintenance by automatically cleaning the air filter. The purpose is to do.

  In order to achieve the above object, the present invention provides an air conditioner having an indoor unit with an air filter automatic cleaning function, an air filter that collects dust in the air, and the indoor unit along the air filter. And a suction nozzle formed with a suction hole for sucking dust adhering to the air filter, which is movable in the left-right direction, and further includes operation means for immediately performing automatic cleaning of the air filter.

  Another aspect of the present invention is an air conditioner having an indoor unit with an automatic cleaning function for an air filter, the air filter collecting dust in the air, and the right and left of the indoor unit along the air filter. A suction nozzle formed with a suction hole that sucks dust adhering to the air filter, and further includes an operation means for selecting start and stop of a normal operation including at least a cooling operation and a heating operation. The air filter is automatically cleaned when the normal operation is stopped.

  It is also possible to provide a detecting means for detecting the accumulated time of normal operation so that the air filter is automatically cleaned when the normal operation is stopped after a predetermined accumulated normal operation time.

  In addition, a detecting means for detecting the accumulated time since the previous automatic cleaning of the air filter is provided, and the air is stopped when the normal operation is stopped after a predetermined accumulated time has elapsed since the previous automatic cleaning of the air filter. You may make it perform automatic cleaning of a filter.

  Furthermore, the automatic cleaning of the air filter can be prevented if the normal operation accumulated time does not elapse.

  In addition, an operating means for setting a time for automatically stopping the normal operation is provided, and when the normal operation automatically stops at the time set by the operating means, the air filter is automatically cleaned, Whether or not to automatically clean the filter may be selected by the operating means.

  In addition, operation means is provided for setting a time for automatically stopping the normal operation when the set time has elapsed during normal operation, and the normal operation is automatically performed after the time set by the operation means has elapsed. When stopped, the air filter may not be automatically cleaned or may be selected to perform.

  Still another aspect of the present invention is an air conditioner having an indoor unit with an automatic cleaning function of an air filter, the air filter collecting dust in the air, and the left-right direction of the indoor unit along the air filter A suction nozzle formed with a suction hole for sucking dust adhering to the air filter, and further comprising an operation means for selecting start and stop of normal operation including at least cooling operation and heating operation, The air filter is automatically cleaned at the start of normal operation.

  It is also possible to provide detection means for detecting the accumulated time of normal operation so that the air filter is automatically cleaned at the start of normal operation after the elapse of a predetermined accumulated normal operation time.

  Also, a detecting means for detecting the accumulated time since the previous automatic cleaning of the air filter is provided, and the air filter is started at the start of normal operation after a predetermined accumulated time has elapsed since the previous automatic cleaning of the air filter. Automatic cleaning may be performed.

  Further, a detecting means for detecting the accumulated time at the time of stop may be provided, and the air filter may not be automatically cleaned unless the predetermined time has elapsed.

  Furthermore, an operating means for setting a time for automatically starting the normal operation is provided, and when the normal operation is automatically started at the time set by the operating means, the air filter is automatically cleaned, It can also be made possible to select whether or not to automatically clean the air filter.

  Moreover, you may make it choose to perform an automatic cleaning of an air filter either at the time of a normal driving | operation stop or at the time of a start.

  Further, it may be possible to select not to perform the automatic cleaning of the air filter in either case of normal operation stop or start.

Since the present invention is configured as described above, the following effects can be obtained.
Providing operation means for immediately performing the automatic cleaning of the air filter allows the air filter to be appropriately cleaned as necessary, thereby improving convenience.

  In addition, when an operation means for selecting start and stop of normal operation including at least cooling operation and heating operation is provided and automatic cleaning of the air filter is performed when the normal operation is stopped, in conjunction with the stop operation of the air conditioner, Since the air filter can be automatically cleaned without the user being aware of it, convenience is improved.

  Furthermore, when performing normal cleaning of the air filter at the time of normal operation stop after a predetermined normal operation cumulative time has elapsed, or at the time of normal operation stop after the predetermined cumulative time has elapsed since the previous automatic cleaning of the air filter, It is possible to avoid unnecessary cleaning of the air filter in a state where dust is less attached, and it is possible to avoid noise associated with the automatic cleaning of the air filter performed in a state where cleaning of the air filter is unnecessary. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

  If the normal operation time does not elapse and the automatic cleaning of the air filter is not performed, even if the user has instructed to stop immediately after instructing the start of operation, the operation is started and the predetermined Since the air filter is not automatically cleaned unless the time elapses, unnecessary air filter cleaning work caused by an erroneous operation can be avoided.

  In addition, if the air filter is automatically cleaned when normal operation automatically stops at a predetermined set time, only the time setting type off timer or several of the multiple operation stops will be set to the time setting type. Even when stopping using the cut-off timer, the air filter can be automatically cleaned, improving convenience. Alternatively, if it is possible to select whether or not to automatically clean the air filter when normal operation stops automatically, when stopping using the time-setting time-off timer, dislike noise and the like. When automatic cleaning is not desired, since automatic cleaning is not performed, convenience is improved.

  Further, when the normal operation automatically stops after the set time has elapsed during the normal operation, if the air filter is not automatically cleaned, the user will not be disturbed by noise or the like. Alternatively, if it is possible to select whether or not the air filter is automatically cleaned, the air filter can be automatically cleaned at a timing desired by the user.

  By providing operation means to select the start and stop of normal operation including at least cooling operation and heating operation, and automatically cleaning the air filter at the start of normal operation, the air filter automatically Since the cleaning work is performed, convenience is improved.

  In addition, when the normal operation starts after the predetermined normal operation accumulated time detected by the accumulated time detecting means, or when the normal operation starts after the predetermined accumulated time after the previous automatic cleaning of the air filter, If the filter is automatically cleaned, unnecessary air filter cleaning work can be avoided when there is little adhesion of dust, and the noise associated with the automatic air filter cleaning performed when the air filter cleaning is unnecessary is avoided. Can be avoided. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

  In addition, if the air filter is not automatically cleaned if the stop time does not elapse, the operation is stopped even if the user has instructed to start immediately after instructing to stop the operation. If the predetermined time has not elapsed, the air filter is not automatically cleaned, so that unnecessary air filter cleaning work caused by an erroneous operation can be avoided.

  When an operation means for setting a time for automatically starting normal operation is provided, and when normal operation is automatically started at the time set by the operation means, the air filter is automatically cleaned, Even when the user starts the operation only with the time setting type input timer or some of the plurality of operation starts using the time setting type input timer, the air filter can be easily cleaned automatically.

  In this case, if it is selected whether or not to automatically clean the air filter, when starting operation using the time setting type on-time timer, the user dislikes noise and does not want to automatically clean the air filter. In this case, it is not necessary to perform automatic cleaning, which improves convenience.

  In addition, when it is possible to select automatic cleaning of the air filter either at the time of normal operation stop or at the time of start, the air filter can be cleaned at the time of operation stop or start according to the user's preference. .

  On the other hand, if the user can choose not to perform automatic cleaning of the air filter when stopping or starting normal operation, the air filter is not cleaned when the user does not want it. Improves.

FIG. 1 is a perspective view of an air filter cleaning mechanism provided in an indoor unit of an air conditioner according to the invention. 2A is an exploded perspective view of a suction nozzle provided in the air filter cleaning mechanism of FIG. 2B is a cross-sectional view taken along line AA in FIG. 2A. FIG. 3 is a schematic diagram illustrating a method for cleaning the entire surface of the air filter. FIG. 4 is a block diagram showing the configuration of the refrigeration cycle and control circuit of the air conditioner according to the present invention. FIG. 5 is a flowchart showing the automatic cleaning control of the air filter according to Embodiment 1 of the present invention. FIG. 6 is a flowchart showing the automatic cleaning control of the air filter according to the second embodiment of the present invention. FIG. 7 is a flowchart showing automatic cleaning control of the air filter according to Embodiment 3 of the present invention. FIG. 8 is a flowchart showing the automatic cleaning control of the air filter in the fourth embodiment of the present invention. FIG. 9 is a sectional view of an indoor unit of a conventional air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Filter frame 102 Filter network 103 Suction nozzle 104 Guide rail 105 Suction duct 106 Suction fan 107 Exhaust duct 201 Suction nozzle body 202 Slit-like opening 203 Belt 204 Suction hole 205 Belt guide 301 Suction nozzle 302 Belt 303 Suction hole 304 Air filter 401 air conditioner 402 outdoor unit 403 indoor unit 404 compressor 405 four-way valve 406 expansion valve 407 outdoor heat exchanger 408 outdoor fan 409 discharge temperature sensor 410 outdoor pipe temperature sensor 411 outdoor temperature sensor 412 indoor heat exchanger 412a front heat exchanger 412b Rear heat exchanger 413 Indoor fan 414 Air filter cleaning mechanism 415 Dry two-way valve 416 Capillary tube 417 Indoor piping temperature sensor 418 Suction sensor 419 Humidity sensor 420 Outdoor control unit 421 Indoor control unit 422 Receiving unit 423 Remote control

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an air filter cleaning mechanism provided in an indoor unit of an air conditioner according to the present invention.

  In FIG. 1, an air filter that removes dust from air passing through a heat exchanger includes a filter frame 101 and a filter net 102, and a suction nozzle 103 that is movable along the surface of the air filter is provided. The suction nozzle 103 can smoothly move to the left and right while maintaining a certain distance from the air filter by the guide rails 104 installed at the upper and lower ends of the filter frame. One end of a suction duct 105 is connected to the suction nozzle 103, and the other end of the suction duct 105 is connected to a suction fan 106. The suction duct 105 is formed of a duct that can be bent so as not to interfere with the movement of the suction nozzle 103. Further, an exhaust duct 107 is connected to the suction fan 106 and is routed outside the room. Dust adhering to the air filter is sucked from the suction nozzle 103 and discharged to the outside through the suction duct 105, the suction device 106, and the exhaust duct 107.

  When the filter device with the above configuration is built in a small air conditioner for general household use, it is necessary to reduce the size and output of the suction device. The suction nozzle 103 is set so as to clean the entire surface of the filter by switching the position by narrowing the suction to a part to increase the suction force.

  2A is an exploded perspective view showing the structure of the suction nozzle 103, and FIG. 2B is a sectional view thereof.

  As shown in FIGS. 2A and 2B, the suction nozzle body 201 is provided with a long slit-like opening 202 corresponding to the entire length of the air filter, and the suction hole 204 is formed in the belt 203 that can be driven along the opening 202. By providing this, suction can be performed from only a part of the opening 202, and the place of suction can be changed by driving the belt 203. Further, since the belt 203 follows the suction nozzle body 201, the belt 203 is covered with a belt guide 205 formed integrally with the suction nozzle body 201 by welding, bonding, or the like. With such a configuration, even with a small amount of air, the air can be narrowed down to a small suction hole, so that the wind speed of the suction hole increases, and a strong suction force can be exhibited even with a small suction device.

  As shown in FIG. 3, the entire surface of the air filter is cleaned by driving the belt 302 of the suction nozzle 301 to change the position of the suction hole 303 and driving the suction nozzle 301 left and right along the air filter 304. 303 is performed by performing a sweep operation as indicated by an arrow in the figure. In FIG. 3, the suction hole 303 is set to ¼ of the total length of the air filter, and the entire surface of the air filter is cleaned by two reciprocating sweep operations as indicated by arrows in the drawing.

  FIG. 4 is a block diagram showing the configuration of the refrigeration cycle and control circuit of the air conditioner according to the present invention.

  In FIG. 4, the air conditioner 401 includes an outdoor unit 402 and an indoor unit 403. The outdoor unit 402 is provided with a compressor 404, a four-way valve 405, an expansion valve 406, an outdoor heat exchanger 407, an outdoor fan 408, a discharge temperature sensor 409, an outdoor pipe temperature sensor 410, and an outdoor temperature sensor 411. The indoor unit 403 includes an indoor heat exchanger 412, an indoor fan 413, an air filter cleaning mechanism 414, an indoor pipe temperature sensor 417, a suction sensor 418, a humidity sensor 419, and a suction unit, a blowing unit, upper and lower blades, left and right, not shown The blades are provided, the outdoor unit 402 and the indoor unit 403 are connected so as to form a refrigeration cycle, and either the cooling operation or the heating operation is performed by switching the four-way valve 405.

  The indoor heat exchanger 412 is divided into a front heat exchanger 412a and a rear heat exchanger 412b, and the front heat exchanger 412a and the rear heat exchanger 412b are throttles formed by a dry two-way valve 415 and a capillary tube 416. Connected through a mechanism. When the dry two-way valve 415 is fully opened, cooling operation or heating operation is performed, the dry two-way valve 415 is closed, and the expansion valve 406 is fully opened or substantially fully opened, so that the front heat exchanger 412a is opened. Since the condenser and the rear heat exchanger 412b can be an evaporator, a so-called dehumidifying operation is possible. The outdoor unit 402 and the indoor unit 403 are provided with an outdoor control unit 420 and an indoor control unit 421, respectively, and both the control units 420 and 421 are electrically connected.

  The indoor control unit 421 includes a receiving unit 422 that receives an infrared signal transmitted from a remote controller 423 provided outside the indoor unit 403. In the embodiment of the present invention, the remote controller 423 and the indoor control unit 421 are provided. Thus, various operations and detection can be performed.

  The operation and action of the air conditioner having the above configuration will be described below.

Embodiment 1 FIG.
FIG. 5 shows a flowchart showing the automatic cleaning control of the air filter in the first embodiment of the present invention.

  As shown in FIG. 5, it is first determined in step 501 whether there is an instruction to immediately perform automatic cleaning of the air filter. If so, the process proceeds to step 502 to perform automatic cleaning of the filter. Return to step 501.

  In the first embodiment, the dust on the air filter can be sucked by the suction fan from the suction nozzle at the timing desired by the user by the operation of the remote controller or the like, and can be discharged outdoors through the suction duct and the exhaust duct. Therefore, the air filter can be easily cleaned and the convenience can be improved.

Embodiment 2. FIG.
FIG. 6 shows a flowchart showing the automatic cleaning control of the air filter in the second embodiment of the present invention.

  As shown in FIG. 6, normal operation is started, and it is determined in step 601 whether or not there has been a stop instruction. If so, the process proceeds to step 602, and if not, the process returns to step 601. In step 602, it is determined whether or not the setting is for performing automatic cleaning of the filter. If so, the process proceeds to step 603, and if not, the process is stopped. In step 603, it is determined whether or not the automatic cleaning of the filter is set when the normal operation is stopped. If so, the process proceeds to step 604, and if not, the process is stopped. In step 604, it is determined whether the normal operation accumulated time is equal to or longer than a predetermined time (for example, 24 hours). If so, the process proceeds to step 605, and if not, the process is stopped. In step 605, it is determined whether or not to stop manually. If so, the process proceeds to step 606. In step 606, it is determined whether or not automatic filter cleaning is set at the time of manual stop. If so, the process proceeds to step 607, and if not, the process stops. In step 607, the filter is automatically cleaned and then stopped. In step 608, it is determined whether or not the time setting type timer is stopped. If so, the process proceeds to step 609, and if not, the process proceeds to step 610. In step 609, it is determined whether or not it is set to perform automatic cleaning of the filter at the time of stop by the time setting type cutoff timer. If so, the process proceeds to step 607, and if not, the process stops. In step 610, it is determined whether or not it is set to perform automatic cleaning of the filter at the time of stop by the cumulative time count type cut-off timer. If so, the process proceeds to step 607, and otherwise stops.

  As described above, in the second embodiment, when the user gives an instruction to stop by operating the remote controller or the like, or when it is stopped by the time setting type timer, it is linked with the stop operation of the air conditioner. Since the dust on the air filter can be sucked from the suction nozzle by the suction fan and discharged to the outside through the suction duct and the exhaust duct, the air filter can be easily cleaned and the user can Since the air filter can be automatically cleaned without being aware of it, convenience can be improved.

  In addition, if you stop by the cumulative time count type off timer represented by the rest timer, etc., even if you stop by the cumulative time count type off timer while sleeping, the air filter will not be automatically cleaned, The user's sleep is not hindered by noise.

  Furthermore, at each stop, it is possible to select whether or not to perform automatic cleaning of the air filter by a remote control or the like, and furthermore, it is possible to select not to clean the air filter at all when the operation is stopped. The user can select conditions for automatically cleaning the air filter as appropriate.

  In addition, if the accumulated time of the normal operation time has not reached the predetermined time, the air filter is not automatically cleaned, so unnecessary cleaning work of the air filter can be avoided in a state where there is little adhesion of dust, It is possible to avoid noise associated with the automatic cleaning of the air filter performed when the air filter is not required to be cleaned. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

Embodiment 3 FIG.
FIG. 7 is a flowchart showing the automatic cleaning control of the air filter in the third embodiment of the present invention.

  As shown in FIG. 7, normal operation is started, and it is determined in step 701 whether or not there has been a stop instruction. If so, the process proceeds to step 702, and if not, the process returns to step 701. In step 702, it is determined whether or not the automatic cleaning of the filter is set. If so, the process proceeds to step 703, and if not, the process stops. In step 703, it is determined whether or not automatic filter cleaning is set when the normal operation is stopped. If so, the process proceeds to step 704, and if not, the process is stopped. In step 704, it is determined whether or not a predetermined cumulative time (for example, 24 hours) has elapsed since the previous automatic air filter cleaning. If so, the process proceeds to step 705, and if not, the process is stopped. To do. In step 705, it is determined whether the normal operation accumulated time is equal to or longer than a predetermined time (for example, 30 minutes). If so, the process proceeds to step 706, and if not, the process is stopped. In step 706, it is determined whether or not to stop manually. If so, the process proceeds to step 707. Otherwise, the process proceeds to step 709. In step 707, it is determined whether or not the automatic cleaning of the filter is set at the time of manual stop. If so, the process proceeds to step 708, and otherwise stops. In step 708, the filter is automatically cleaned and then stopped. In step 709, it is determined whether or not the time setting type timer is stopped. If so, the process proceeds to step 710, and if not, the process proceeds to step 711. In step 710, it is determined whether or not it is set to perform automatic cleaning of the filter when stopped by the time setting type off timer. If so, the process proceeds to step 708, and if not, the process stops. In step 711, it is determined whether or not it is set to perform automatic cleaning of the filter at the time of stop by the cumulative time count type cut-off timer. If so, the process proceeds to step 708, and otherwise stops.

  As described above, in the third embodiment, when the filter is automatically cleaned once, the air filter is not automatically cleaned unless a certain period of time (for example, 24 hours) elapses. Unnecessary cleaning work of the air filter in a small state can be avoided, and noise accompanying the automatic cleaning of the air filter performed in a state where cleaning of the air filter is unnecessary can be avoided. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

  Furthermore, if the accumulated time of the normal operation time does not reach a predetermined time (for example, 30 minutes), the air filter is not automatically cleaned, and therefore when the user instructed to stop immediately after instructing the start of operation, etc. In this case, the air filter is not automatically cleaned unless a predetermined time elapses after the operation is started. Therefore, unnecessary cleaning work of the air filter caused by an erroneous operation can be avoided, and convenience can be improved.

Embodiment 4 FIG.
FIG. 8 shows a flowchart showing the automatic cleaning control of the air filter in the fourth embodiment of the present invention.

  As shown in FIG. 8, the operation proceeds from step 801 to step 801. In step 801, it is determined whether a normal operation start instruction has been issued. If so, the process proceeds to step 802, and if not, the process returns to step 801. In step 802, it is determined whether or not the setting is for performing automatic cleaning of the filter. If so, the process proceeds to step 803, and if not, normal operation is performed. In step 803, it is determined whether or not the automatic cleaning of the filter is set at the start of normal operation. If so, the process proceeds to step 804, otherwise normal operation is performed. In step 804, it is determined whether or not a predetermined cumulative time (for example, 24 hours) has elapsed since the previous automatic air filter cleaning. If so, the process proceeds to step 805. Otherwise, normal operation is performed. I do. In step 805, it is determined whether or not the accumulated time at the time of stoppage is equal to or longer than a predetermined time (for example, 30 minutes). If so, the process proceeds to step 806, otherwise normal operation is performed. In step 806, it is determined whether the normal operation start instruction is manual. If so, the process proceeds to step 807. If not, the process proceeds to step 809. In step 807, it is determined whether or not it is set to perform automatic cleaning of the filter at the start of normal operation manual operation. If so, the process proceeds to step 808, otherwise normal operation is performed. In step 808, the filter is automatically cleaned and a normal operation is performed. In step 809, it is determined whether or not the automatic cleaning of the filter is set at the start of normal operation by the time setting type input timer. If so, the process proceeds to step 808, otherwise normal operation is performed.

  As described above, in the fourth embodiment, when the user gives an instruction to start driving by operating a remote controller or the like and starts driving, or when the driving is started by the time setting type on timer, the air conditioner is operated. In conjunction with the start operation, dust on the air filter can be sucked from the suction nozzle by the suction fan and discharged to the outside through the suction duct and exhaust duct, making it easy to clean the air filter In addition, the user can automatically clean the air filter without being aware of it, and the convenience can be improved.

  In addition, conditions for performing automatic air filter cleaning, such as selection of whether or not to perform automatic air filter cleaning at the start of each operation, and selection not to perform any air filter cleaning at the start of operation, as appropriate. User can select.

  If the accumulated time at the time of stoppage does not reach a predetermined time (for example, 30 minutes), the air filter is not automatically cleaned. However, since the air filter is not automatically cleaned, unnecessary air filter cleaning work caused by an erroneous operation can be avoided.

  Further, as is clear from the third and fourth embodiments, not only can the air filter be cleaned at either the stop or start of operation, but also the automatic cleaning of the air filter is not performed at all. Since it can be set not to do so, convenience is improved.

  As described above, the air conditioner according to the present invention does not require regular maintenance, and can easily clean the air filter and improve user convenience. Applicable to.

  The present invention relates to an air conditioner having an indoor unit with an air filter automatic cleaning function.

  FIG. 9 shows an indoor unit 901 of a conventional air conditioner. As shown in FIG. 9, air sucked by a fan 902 is cooled or heated by a heat exchanger 903 and then blown into the room. An air filter 904 is provided on the back of the suction port of the indoor unit 901 to prevent dust drifting in the sucked air from entering the inside of the main body of the indoor unit 901. The air filter 904 cleans the attached dust by hand. It is configured to be detachable so that it can.

In addition, as an air conditioner that can easily clean the air filter, a belt-shaped filter that is fed / wound by a motor, a dust removing member that removes dust adhering to the filter, and a dust box that collects dust scraped off by the dust removing member There is known a filter apparatus having a filter device installed on the back surface of the suction panel suction port (see, for example, Patent Document 1).
JP 2001-99479 A

  However, the air conditioner shown in FIG. 9 requires periodic maintenance in which the air filter 904 is removed from the indoor unit 901 in accordance with the frequency of use and is washed with water or cleaned with dust or the like. In addition, when regular maintenance is not performed, dust accumulates on the air filter 904 and the ventilation resistance of the intake air increases, so that there is a problem that the performance of the air conditioner decreases and the power consumption increases.

  Further, in the configuration described in Patent Document 1, dust attached to the band-shaped filter wound up or down by the drive motor is collected in the dust box, so that the dust is discarded before the dust exceeds the holding amount in the dust box. And had the problem of requiring regular maintenance.

  The present invention has been made in view of such problems of the prior art, and provides an air conditioner with improved convenience that does not require periodic maintenance by automatically cleaning the air filter. The purpose is to do.

  In order to achieve the above object, the present invention provides an air conditioner having an indoor unit with an air filter automatic cleaning function, an air filter that collects dust in the air, and the indoor unit along the air filter. And a suction nozzle formed with a suction hole for sucking dust adhering to the air filter, which is movable in the left-right direction, and further includes operation means for immediately performing automatic cleaning of the air filter.

  Another aspect of the present invention is an air conditioner having an indoor unit with an automatic cleaning function for an air filter, the air filter collecting dust in the air, and the right and left of the indoor unit along the air filter. A suction nozzle formed with a suction hole that sucks dust adhering to the air filter, and further includes an operation means for selecting start and stop of a normal operation including at least a cooling operation and a heating operation. The air filter is automatically cleaned when the normal operation is stopped.

  It is also possible to provide a detecting means for detecting the accumulated time of normal operation so that the air filter is automatically cleaned when the normal operation is stopped after a predetermined accumulated normal operation time.

  In addition, a detecting means for detecting the accumulated time since the previous automatic cleaning of the air filter is provided, and the air is stopped when the normal operation is stopped after a predetermined accumulated time has elapsed since the previous automatic cleaning of the air filter. You may make it perform automatic cleaning of a filter.

  Furthermore, the automatic cleaning of the air filter can be prevented if the normal operation accumulated time does not elapse.

  In addition, an operating means for setting a time for automatically stopping the normal operation is provided, and when the normal operation automatically stops at the time set by the operating means, the air filter is automatically cleaned, Whether or not to automatically clean the filter may be selected by the operating means.

  In addition, operation means is provided for setting a time for automatically stopping the normal operation when the set time has elapsed during normal operation, and the normal operation is automatically performed after the time set by the operation means has elapsed. When stopped, the air filter may not be automatically cleaned or may be selected to perform.

  Still another aspect of the present invention is an air conditioner having an indoor unit with an automatic cleaning function of an air filter, the air filter collecting dust in the air, and the left-right direction of the indoor unit along the air filter A suction nozzle formed with a suction hole for sucking dust adhering to the air filter, and further comprising an operation means for selecting start and stop of normal operation including at least cooling operation and heating operation, The air filter is automatically cleaned at the start of normal operation.

  It is also possible to provide detection means for detecting the accumulated time of normal operation so that the air filter is automatically cleaned at the start of normal operation after the elapse of a predetermined accumulated normal operation time.

  Also, a detecting means for detecting the accumulated time since the previous automatic cleaning of the air filter is provided, and the air filter is started at the start of normal operation after a predetermined accumulated time has elapsed since the previous automatic cleaning of the air filter. Automatic cleaning may be performed.

  Further, a detecting means for detecting the accumulated time at the time of stop may be provided, and the air filter may not be automatically cleaned unless the predetermined time has elapsed.

  Furthermore, an operating means for setting a time for automatically starting the normal operation is provided, and when the normal operation is automatically started at the time set by the operating means, the air filter is automatically cleaned, It can also be made possible to select whether or not to automatically clean the air filter.

  Moreover, you may make it choose to perform an automatic cleaning of an air filter either at the time of a normal driving | operation stop or at the time of a start.

  Further, it may be possible to select not to perform the automatic cleaning of the air filter in either case of normal operation stop or start.

Since the present invention is configured as described above, the following effects can be obtained.
Providing operation means for immediately performing the automatic cleaning of the air filter allows the air filter to be appropriately cleaned as necessary, thereby improving convenience.

  In addition, when an operation means for selecting start and stop of normal operation including at least cooling operation and heating operation is provided and automatic cleaning of the air filter is performed when the normal operation is stopped, in conjunction with the stop operation of the air conditioner, Since the air filter can be automatically cleaned without the user being aware of it, convenience is improved.

  Furthermore, when performing normal cleaning of the air filter at the time of normal operation stop after a predetermined normal operation cumulative time has elapsed, or at the time of normal operation stop after the predetermined cumulative time has elapsed since the previous automatic cleaning of the air filter, It is possible to avoid unnecessary cleaning of the air filter in a state where dust is less attached, and it is possible to avoid noise associated with the automatic cleaning of the air filter performed in a state where cleaning of the air filter is unnecessary. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

  If the normal operation time does not elapse and the automatic cleaning of the air filter is not performed, even if the user has instructed to stop immediately after instructing the start of operation, the operation is started and the predetermined Since the air filter is not automatically cleaned unless the time elapses, unnecessary air filter cleaning work caused by an erroneous operation can be avoided.

  In addition, if the air filter is automatically cleaned when normal operation automatically stops at a predetermined set time, only the time setting type off timer or several of the multiple operation stops will be set to the time setting type. Even when stopping using the cut-off timer, the air filter can be automatically cleaned, improving convenience. Alternatively, if it is possible to select whether or not to automatically clean the air filter when normal operation stops automatically, when stopping using the time-setting time-off timer, dislike noise and the like. When automatic cleaning is not desired, since automatic cleaning is not performed, convenience is improved.

  Further, when the normal operation automatically stops after the set time has elapsed during the normal operation, if the air filter is not automatically cleaned, the user will not be disturbed by noise or the like. Alternatively, if it is possible to select whether or not the air filter is automatically cleaned, the air filter can be automatically cleaned at a timing desired by the user.

  By providing operation means to select the start and stop of normal operation including at least cooling operation and heating operation, and automatically cleaning the air filter at the start of normal operation, the air filter automatically Since the cleaning work is performed, convenience is improved.

  In addition, when the normal operation starts after the predetermined normal operation accumulated time detected by the accumulated time detecting means, or when the normal operation starts after the predetermined accumulated time after the previous automatic cleaning of the air filter, If the filter is automatically cleaned, unnecessary air filter cleaning work can be avoided when there is little adhesion of dust, and the noise associated with the automatic air filter cleaning performed when the air filter cleaning is unnecessary is avoided. Can be avoided. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

  In addition, if the air filter is not automatically cleaned if the stop time does not elapse, the operation is stopped even if the user has instructed to start immediately after instructing to stop the operation. If the predetermined time has not elapsed, the air filter is not automatically cleaned, so that unnecessary air filter cleaning work caused by an erroneous operation can be avoided.

  When an operation means for setting a time for automatically starting normal operation is provided, and when normal operation is automatically started at the time set by the operation means, the air filter is automatically cleaned, Even when the user starts the operation only with the time setting type input timer or some of the plurality of operation starts using the time setting type input timer, the air filter can be easily cleaned automatically.

  In this case, if it is selected whether or not to automatically clean the air filter, when starting operation using the time setting type on-time timer, the user dislikes noise and does not want to automatically clean the air filter. In this case, it is not necessary to perform automatic cleaning, which improves convenience.

  In addition, when it is possible to select automatic cleaning of the air filter either at the time of normal operation stop or at the time of start, the air filter can be cleaned at the time of operation stop or start according to the user's preference. .

  On the other hand, if the user can choose not to perform automatic cleaning of the air filter when stopping or starting normal operation, the air filter is not cleaned when the user does not want it. Improves.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an air filter cleaning mechanism provided in an indoor unit of an air conditioner according to the present invention.

  In FIG. 1, an air filter that removes dust from air passing through a heat exchanger includes a filter frame 101 and a filter net 102, and a suction nozzle 103 that is movable along the surface of the air filter is provided. The suction nozzle 103 can smoothly move to the left and right while maintaining a certain distance from the air filter by the guide rails 104 installed at the upper and lower ends of the filter frame. One end of a suction duct 105 is connected to the suction nozzle 103, and the other end of the suction duct 105 is connected to a suction fan 106. The suction duct 105 is formed of a duct that can be bent so as not to interfere with the movement of the suction nozzle 103. Further, an exhaust duct 107 is connected to the suction fan 106 and is routed outside the room. Dust adhering to the air filter is sucked from the suction nozzle 103 and discharged to the outside through the suction duct 105, the suction device 106, and the exhaust duct 107.

  When the filter device with the above configuration is built in a small air conditioner for general household use, it is necessary to reduce the size and output of the suction device. The suction nozzle 103 is set so as to clean the entire surface of the filter by switching the position by narrowing the suction to a part to increase the suction force.

  2A is an exploded perspective view showing the structure of the suction nozzle 103, and FIG. 2B is a sectional view thereof.

  As shown in FIGS. 2A and 2B, the suction nozzle body 201 is provided with a long slit-like opening 202 corresponding to the entire length of the air filter, and the suction hole 204 is formed in the belt 203 that can be driven along the opening 202. By providing this, suction can be performed from only a part of the opening 202, and the place of suction can be changed by driving the belt 203. Further, since the belt 203 follows the suction nozzle body 201, the belt 203 is covered with a belt guide 205 formed integrally with the suction nozzle body 201 by welding, bonding or the like. With such a configuration, even with a small amount of air, the air can be narrowed down to a small suction hole, so that the wind speed of the suction hole increases, and a strong suction force can be exhibited even with a small suction device.

  As shown in FIG. 3, the entire surface of the air filter is cleaned by driving the belt 302 of the suction nozzle 301 to change the position of the suction hole 303 and driving the suction nozzle 301 left and right along the air filter 304. 303 is performed by performing a sweep operation as indicated by an arrow in the figure. In FIG. 3, the suction hole 303 is set to ¼ of the total length of the air filter, and the entire surface of the air filter is cleaned by two reciprocating sweep operations as indicated by arrows in the drawing.

  FIG. 4 is a block diagram showing the configuration of the refrigeration cycle and control circuit of the air conditioner according to the present invention.

  In FIG. 4, the air conditioner 401 includes an outdoor unit 402 and an indoor unit 403. The outdoor unit 402 is provided with a compressor 404, a four-way valve 405, an expansion valve 406, an outdoor heat exchanger 407, an outdoor fan 408, a discharge temperature sensor 409, an outdoor pipe temperature sensor 410, and an outdoor temperature sensor 411. The indoor unit 403 includes an indoor heat exchanger 412, an indoor fan 413, an air filter cleaning mechanism 414, an indoor pipe temperature sensor 417, a suction sensor 418, a humidity sensor 419, and a suction unit, a blowing unit, upper and lower blades, left and right, not shown The blades are provided, the outdoor unit 402 and the indoor unit 403 are connected so as to form a refrigeration cycle, and either the cooling operation or the heating operation is performed by switching the four-way valve 405.

  The indoor heat exchanger 412 is divided into a front heat exchanger 412a and a rear heat exchanger 412b, and the front heat exchanger 412a and the rear heat exchanger 412b are throttles formed by a dry two-way valve 415 and a capillary tube 416. Connected through a mechanism. When the dry two-way valve 415 is fully opened, cooling operation or heating operation is performed, the dry two-way valve 415 is closed, and the expansion valve 406 is fully opened or substantially fully opened, so that the front heat exchanger 412a is opened. Since the condenser and the rear heat exchanger 412b can be an evaporator, a so-called dehumidifying operation is possible. The outdoor unit 402 and the indoor unit 403 are provided with an outdoor control unit 420 and an indoor control unit 421, respectively, and both the control units 420 and 421 are electrically connected.

  The indoor control unit 421 includes a receiving unit 422 that receives an infrared signal transmitted from a remote controller 423 provided outside the indoor unit 403. In the embodiment of the present invention, the remote controller 423 and the indoor control unit 421 are provided. Thus, various operations and detection can be performed.

  The operation and action of the air conditioner having the above configuration will be described below.

Embodiment 1 FIG.
FIG. 5 shows a flowchart showing the automatic cleaning control of the air filter in the first embodiment of the present invention.

  As shown in FIG. 5, it is first determined in step 501 whether there is an instruction to immediately perform automatic cleaning of the air filter. If so, the process proceeds to step 502 to perform automatic cleaning of the filter. Return to step 501.

  In the first embodiment, the dust on the air filter can be sucked by the suction fan from the suction nozzle at the timing desired by the user by the operation of the remote controller or the like, and can be discharged outdoors through the suction duct and the exhaust duct. Therefore, the air filter can be easily cleaned and the convenience can be improved.

Embodiment 2. FIG.
FIG. 6 shows a flowchart showing the automatic cleaning control of the air filter in the second embodiment of the present invention.

  As shown in FIG. 6, normal operation is started, and it is determined in step 601 whether or not there has been a stop instruction. If so, the process proceeds to step 602, and if not, the process returns to step 601. In step 602, it is determined whether or not the setting is for performing automatic cleaning of the filter. In step 603, it is determined whether or not the automatic cleaning of the filter is set when the normal operation is stopped. If so, the process proceeds to step 604, and if not, the process is stopped. In step 604, it is determined whether the normal operation accumulated time is equal to or longer than a predetermined time (for example, 24 hours). If so, the process proceeds to step 605, and if not, the process stops. In step 605, it is determined whether or not to stop manually. If so, the process proceeds to step 606, and if not, the process proceeds to step 608. In step 606, it is determined whether or not automatic filter cleaning is set at the time of manual stop. If so, the process proceeds to step 607, and if not, the process stops. In step 607, the filter is automatically cleaned and then stopped. In step 608, it is determined whether or not the time setting type timer is stopped. If so, the process proceeds to step 609; In step 609, it is determined whether or not it is set to perform automatic cleaning of the filter at the time of stop by the time setting type cut-off timer. If so, the process proceeds to step 607. In step 610, it is determined whether or not it is set to perform automatic cleaning of the filter at the time of stop by the cumulative time count type cut-off timer.

  As described above, in the second embodiment, when the user gives an instruction to stop by operating the remote controller or the like, or when it is stopped by the time setting type timer, it is linked with the stop operation of the air conditioner. Since the dust on the air filter can be sucked from the suction nozzle by the suction fan and discharged to the outside through the suction duct and the exhaust duct, the air filter can be easily cleaned and the user can Since the air filter can be automatically cleaned without being aware of it, convenience can be improved.

  In addition, if you stop by the cumulative time count type off timer represented by the rest timer, etc., even if you stop by the cumulative time count type off timer while sleeping, the air filter will not be automatically cleaned, The user's sleep is not hindered by noise.

  Furthermore, at each stop, it is possible to select whether or not to perform automatic cleaning of the air filter by a remote control or the like, and furthermore, it is possible to select not to clean the air filter at all when the operation is stopped. The user can select conditions for automatically cleaning the air filter as appropriate.

  In addition, if the accumulated time of the normal operation time has not reached the predetermined time, the air filter is not automatically cleaned, so unnecessary cleaning work of the air filter can be avoided in a state where there is little adhesion of dust, It is possible to avoid noise associated with the automatic cleaning of the air filter performed when the air filter is not required to be cleaned. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

Embodiment 3 FIG.
FIG. 7 is a flowchart showing the automatic cleaning control of the air filter in the third embodiment of the present invention.

  As shown in FIG. 7, normal operation is started, and it is determined in step 701 whether or not there has been a stop instruction. If so, the process proceeds to step 702, and if not, the process returns to step 701. In step 702, it is determined whether or not the automatic cleaning of the filter is set. If so, the process proceeds to step 703, and if not, the process stops. In step 703, it is determined whether or not automatic filter cleaning is set when the normal operation is stopped. If so, the process proceeds to step 704, and if not, the process is stopped. In step 704, it is determined whether or not a predetermined cumulative time (for example, 24 hours) has elapsed since the previous automatic air filter cleaning. If so, the process proceeds to step 705, and if not, the process is stopped. To do. In step 705, it is determined whether the normal operation accumulated time is equal to or longer than a predetermined time (for example, 30 minutes). If so, the process proceeds to step 706, and if not, the process is stopped. In step 706, it is determined whether or not to stop manually. If so, the process proceeds to step 707. Otherwise, the process proceeds to step 709. In step 707, it is determined whether or not the automatic cleaning of the filter is set at the time of manual stop. If so, the process proceeds to step 708, and otherwise stops. In step 708, the filter is automatically cleaned and then stopped. In step 709, it is determined whether or not the time setting type timer is stopped. If so, the process proceeds to step 710, and if not, the process proceeds to step 711. In step 710, it is determined whether or not it is set to perform automatic cleaning of the filter when stopped by the time setting type off timer. If so, the process proceeds to step 708, and if not, the process stops. In step 711, it is determined whether or not it is set to perform automatic cleaning of the filter at the time of stop by the cumulative time count type cut-off timer. If so, the process proceeds to step 708, and otherwise stops.

  As described above, in the third embodiment, when the filter is automatically cleaned once, the air filter is not automatically cleaned unless a certain period of time (for example, 24 hours) elapses. Unnecessary cleaning work of the air filter in a small state can be avoided, and noise accompanying the automatic cleaning of the air filter performed in a state where cleaning of the air filter is unnecessary can be avoided. In addition, an unnecessary air filter is not automatically cleaned, so an energy saving effect can be expected.

  Furthermore, if the accumulated time of the normal operation time does not reach a predetermined time (for example, 30 minutes), the air filter is not automatically cleaned, and therefore when the user instructed to stop immediately after instructing the start of operation, etc. In this case, the air filter is not automatically cleaned unless a predetermined time elapses after the operation is started. Therefore, unnecessary cleaning work of the air filter caused by an erroneous operation can be avoided, and convenience can be improved.

Embodiment 4 FIG.
FIG. 8 shows a flowchart showing the automatic cleaning control of the air filter in the fourth embodiment of the present invention.

  As shown in FIG. 8, the operation proceeds from step 801 to step 801. In step 801, it is determined whether a normal operation start instruction has been issued. If so, the process proceeds to step 802, and if not, the process returns to step 801. In step 802, it is determined whether or not the setting is for performing automatic cleaning of the filter. If so, the process proceeds to step 803, and if not, normal operation is performed. In step 803, it is determined whether or not the automatic cleaning of the filter is set at the start of normal operation. If so, the process proceeds to step 804, otherwise normal operation is performed. In step 804, it is determined whether or not a predetermined cumulative time (for example, 24 hours) has elapsed since the previous automatic air filter cleaning. If so, the process proceeds to step 805. Otherwise, normal operation is performed. I do. In step 805, it is determined whether or not the accumulated time at the time of stoppage is equal to or longer than a predetermined time (for example, 30 minutes). If so, the process proceeds to step 806, otherwise normal operation is performed. In step 806, it is determined whether the normal operation start instruction is manual. If so, the process proceeds to step 807. If not, the process proceeds to step 809. In step 807, it is determined whether or not it is set to perform automatic cleaning of the filter at the start of normal operation manual operation. If so, the process proceeds to step 808, otherwise normal operation is performed. In step 808, the filter is automatically cleaned and a normal operation is performed. In step 809, it is determined whether or not the automatic cleaning of the filter is set at the start of normal operation by the time setting type input timer. If so, the process proceeds to step 808, otherwise normal operation is performed.

  As described above, in the fourth embodiment, when the user gives an instruction to start driving by operating a remote controller or the like and starts driving, or when the driving is started by the time setting type on timer, the air conditioner is operated. In conjunction with the start operation, dust on the air filter can be sucked from the suction nozzle by the suction fan and discharged to the outside through the suction duct and exhaust duct, making it easy to clean the air filter In addition, the user can automatically clean the air filter without being aware of it, and the convenience can be improved.

  In addition, conditions for performing automatic air filter cleaning, such as selection of whether or not to perform automatic air filter cleaning at the start of each operation, and selection not to perform any air filter cleaning at the start of operation, as appropriate. User can select.

  If the accumulated time at the time of stoppage does not reach a predetermined time (for example, 30 minutes), the air filter is not automatically cleaned. However, since the air filter is not automatically cleaned, unnecessary air filter cleaning work caused by an erroneous operation can be avoided.

  Further, as is clear from the third and fourth embodiments, not only can the air filter be cleaned at either the stop or start of operation, but also the automatic cleaning of the air filter is not performed at all. Since it can be set not to do so, convenience is improved.

  As described above, the air conditioner according to the present invention does not require regular maintenance, and can easily clean the air filter and improve user convenience. Applicable to.

FIG. 1 is a perspective view of an air filter cleaning mechanism provided in an indoor unit of an air conditioner according to the invention. 2A is an exploded perspective view of a suction nozzle provided in the air filter cleaning mechanism of FIG. 2B is a cross-sectional view taken along line AA in FIG. 2A. FIG. 3 is a schematic diagram illustrating a method for cleaning the entire surface of the air filter. FIG. 4 is a block diagram showing the configuration of the refrigeration cycle and control circuit of the air conditioner according to the present invention. FIG. 5 is a flowchart showing the automatic cleaning control of the air filter according to Embodiment 1 of the present invention. FIG. 6 is a flowchart showing the automatic cleaning control of the air filter according to the second embodiment of the present invention. FIG. 7 is a flowchart showing automatic cleaning control of the air filter according to Embodiment 3 of the present invention. FIG. 8 is a flowchart showing the automatic cleaning control of the air filter in the fourth embodiment of the present invention. FIG. 9 is a sectional view of an indoor unit of a conventional air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Filter frame 102 Filter network 103 Suction nozzle 104 Guide rail 105 Suction duct 106 Suction fan 107 Exhaust duct 201 Suction nozzle body 202 Slit-like opening 203 Belt 204 Suction hole 205 Belt guide 301 Suction nozzle 302 Belt 303 Suction hole 304 Air filter 401 air conditioner 402 outdoor unit 403 indoor unit 404 compressor 405 four-way valve 406 expansion valve 407 outdoor heat exchanger 408 outdoor fan 409 discharge temperature sensor 410 outdoor pipe temperature sensor 411 outdoor temperature sensor 412 indoor heat exchanger 412a front heat exchanger 412b Rear heat exchanger 413 Indoor fan 414 Air filter cleaning mechanism 415 Dry two-way valve 416 Capillary tube 417 Indoor piping temperature sensor 418 Suction sensor 419 Humidity sensor 420 Outdoor control unit 421 Indoor control unit 422 Receiving unit 423 Remote control

Claims (17)

An air conditioner having an indoor unit with an automatic cleaning function of an air filter,
An air filter that collects dust in the air, and a suction nozzle that is movable in the left-right direction of the indoor unit along the air filter and has a suction hole that sucks dust attached to the air filter, An air conditioner further comprising operation means for immediately performing automatic cleaning of the air filter. An air conditioner having an indoor unit with an automatic cleaning function of an air filter,
An air filter that collects dust in the air, and a suction nozzle that is movable in the left-right direction of the indoor unit along the air filter and has a suction hole that sucks dust adhering to the air filter. An air conditioner further comprising operating means for selecting start and stop of normal operation including cooling operation and heating operation, wherein the air filter is automatically cleaned when the normal operation is stopped. 3. The air filter according to claim 2, further comprising detection means for detecting an accumulated time of normal operation, wherein the air filter is automatically cleaned when the normal operation is stopped after a predetermined accumulated normal operation time. Air conditioner. The apparatus further comprises detection means for detecting a cumulative time since the previous automatic cleaning of the air filter, and when normal operation is stopped after a predetermined cumulative time has elapsed since the previous automatic cleaning of the air filter. The air conditioner according to claim 2, wherein the air filter is automatically cleaned. 3. The apparatus according to claim 2, further comprising detection means for detecting a cumulative time of normal operation, wherein the automatic cleaning of the air filter is not performed unless the predetermined normal time has elapsed. Or the air conditioner of 4. An operation means for setting a time for automatically stopping the normal operation is further provided, and when the normal operation is automatically stopped at the time set by the operation means, the air filter is automatically cleaned. The air conditioner according to any one of claims 2 to 5, wherein the air conditioner is provided. It further comprises operation means for setting a time for automatically stopping the normal operation, and when the normal operation is automatically stopped at the time set by the operation means, it is determined whether or not the air filter is automatically cleaned. The air conditioner according to any one of claims 2 to 5, wherein the air conditioner can be selected by the operation means. It further comprises an operation means for setting a time for automatically stopping the normal operation when the time set in the normal operation elapses, and the normal operation is automatically stopped after the time set by the operation means has elapsed. In this case, the air conditioner according to any one of claims 2 to 5, wherein the air filter is not automatically cleaned. It further comprises an operation means for setting a time for automatically stopping the normal operation when the time set in the normal operation elapses, and the normal operation is automatically stopped after the time set by the operation means has elapsed. 6. The air conditioner according to claim 2, wherein whether or not the air filter is automatically cleaned can be selected. An air conditioner having an indoor unit with an automatic cleaning function of an air filter,
An air filter that collects dust in the air, and a suction nozzle that is movable in the left-right direction of the indoor unit along the air filter and has a suction hole that sucks dust adhering to the air filter. An air conditioner further comprising operating means for selecting start and stop of normal operation including cooling operation and heating operation, wherein the air filter is automatically cleaned at the start of normal operation. 11. The air filter according to claim 10, further comprising detection means for detecting an accumulated time of normal operation, wherein the air filter is automatically cleaned at the start of normal operation after a predetermined accumulated normal operation time. Air conditioner. The apparatus further comprises detection means for detecting a cumulative time since the previous automatic cleaning of the air filter, and at the start of normal operation after a predetermined cumulative time has elapsed since the previous automatic cleaning of the air filter. The air conditioner according to claim 10, wherein the air filter is automatically cleaned. 13. The apparatus according to claim 10, further comprising detection means for detecting an accumulated time at the time of stop, wherein the air filter is not automatically cleaned unless a predetermined time elapses. The air conditioner described. Operation means for setting a time for automatically starting the normal operation is further provided, and when the normal operation is automatically started at the time set by the operation means, the air filter is automatically cleaned. The air conditioner according to any one of claims 10 to 13, wherein Whether or not to perform automatic cleaning of the air filter when the normal operation is automatically started at the time set by the operation means is further provided with operation means for setting the time for automatically starting the normal operation The air conditioner according to any one of claims 10 to 13, wherein the air conditioner can be selected. The air conditioner according to any one of claims 2 to 15, wherein an automatic cleaning of the air filter can be selected at either the time of normal operation stop or the time of start. 17. The device according to claim 2, wherein the air filter can be selected not to be automatically cleaned at any time when the normal operation is stopped or started. Air conditioner.

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