JP5353985B2 - Air conditioner - Google Patents

Abstract

The invention discloses an air-conditioner which has the automatic cleaning function of an automatic cleaning filter. The automatic cleaning function has the standard mode and the finer mode. In the finer mode, the cleaning time of the filter is longer than the cleaning time of the filter in the standard mode. A user can select the desired automatic cleaning mode according to the using state, so the automatic cleaning function which is suitable for the using environment is realized.

Description

  The present invention relates to an air conditioner having an automatic cleaning function for automatically cleaning a filter.

  In recent years, an air conditioner having an automatic cleaning function for automatically cleaning a filter has been proposed (see, for example, Patent Document 1).

JP 2004-263984 A

  However, the usage environment of the air conditioner varies depending on each household, and there are various types of dust adhering to the filter such as dust containing a lot of oil and dust containing a lot of sand. In such a variety of dusts, depending on the type of dust, when automatic cleaning is repeated, the dust is pressed against the filter, and the filter filters the dust and enters the back surface of the filter.

  This invention solves the said conventional subject, and it aims at providing the air conditioner which can suppress the penetration | invasion of the dust to the filter back surface.

In order to achieve the above object, the air conditioner of the present invention is an air conditioner having an automatic cleaning function for automatically cleaning a filter, and a standard mode and a careful mode are provided in the mode of the automatic cleaning function, The careful mode is a longer cleaning time of the filter than the standard mode, and the cleaning mechanism or the number of times the filter is driven when the pre-commemorative mode is selected is the cleaning time in the standard mode. When the number of times of driving of the mechanism or the filter is an integer multiple, the number of times of driving of the cleaning mechanism or the filter is provided, and the number of times of driving of the cleaning mechanism or the filter when the pre-commemorative mode is selected exceeds the upper limit number of times the number of times of driving the cleaning mechanism or said filter by said upper limit number of times, the user according to the usage status selection It is possible to more automatic cleaning function can be realized depending on use environment, it is possible to further users in a long cleaning time to have no distrust.

  ADVANTAGE OF THE INVENTION According to this invention, the air conditioner which can suppress the penetration | invasion of the dust to a filter back surface can be provided.

The external perspective view and principal part block diagram of the indoor unit in Embodiment 1 of this invention Configuration schematic diagram of refrigeration cycle of air conditioner in Embodiment 1 Schematic diagram of the cleaning mechanism in the first embodiment State diagram of cleaning mechanism in embodiment 1 State diagram of cleaning mechanism during full-surface cleaning in the first embodiment Correspondence diagram between the driving situation and the number of driving times of the cleaning mechanism in the first embodiment State diagram of cleaning mechanism in embodiment 1 Image of standard mode in the first embodiment Image of careful mode in the first embodiment Upper limit value regulation diagram of cleaning mechanism in embodiment 1 (A) Configuration diagram of display unit in the first embodiment (b) Configuration diagram of display unit in the first embodiment (A) State diagram of the display board 23 in the first embodiment (b) State diagram of the display board 23 in the standard mode in the first embodiment (c) Display board 23 in the careful mode in the first embodiment State diagram XX sectional view in the first embodiment The schematic diagram of the cleaning mechanism in Embodiment 2 of this invention The principal part enlarged view of the Y direction in Embodiment 2 State diagram of cleaning mechanism during full-surface cleaning in the second embodiment Correspondence diagram between operating conditions and number of times of air filter driving in the second embodiment Upper limit value regulation diagram of air filter driving frequency in the second embodiment

An air conditioner according to a first aspect of the present invention is an air conditioner having an automatic cleaning function for automatically cleaning a filter, wherein a standard mode and a careful mode are provided as modes of the automatic cleaning function, and the careful mode is compared with the standard mode. The cleaning time of the filter is extended, and the cleaning mechanism or the filter driving frequency when the pre-commemorative mode is selected is an integral multiple of the cleaning mechanism or the filter driving frequency in the standard mode. If the cleaning mechanism or the filter is driven an upper limit number of times, and the cleaning mechanism or the filter driving number of times when the pre-commemorative mode is selected exceeds the upper limit number of times, the cleaning mechanism or the filter is driven with the upper limit number of times can be user selected in accordance with the usage, in line with more use environment It is possible to realize a dynamic cleaning function, the user can in a manner such that there is no distrust that a longer cleaning time.

  The air conditioner of the second invention is provided with a remote control device for operating the air conditioner described in the first invention, and the user can easily switch between the standard mode and the careful mode with the remote control device. Can be switched to.

  In the air conditioner of the third invention, particularly in the second invention, the remote control device includes a display unit for displaying the operation information, and when the careful mode is selected, the careful mode is selected for the display unit. By making the display easy to understand, it is possible to prevent the user from having distrust in the long automatic cleaning time.

  In the air conditioner of the fourth aspect of the invention, the automatic cleaning function is configured such that the cleaning mechanism drives the front side of the filter to remove dust, or the cleaning mechanism is arranged on the front side of the filter and the filter itself drives. When configured with one of the configurations to remove dust and the careful mode is selected, the cleaning mechanism drive time or filter drive time is increased compared to the standard mode to match the automatic cleaning function configuration. And automatic cleaning operation in accordance with the usage environment.

In the air conditioner of the fifth aspect of the invention, the number of times the cleaning mechanism or filter is driven when the standard mode is selected is determined according to the operating time of the air conditioner of the first aspect of the invention, so The optimum automatic cleaning operation can be performed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is an external perspective view and main part configuration diagram of an indoor unit according to Embodiment 1, and FIG. 2 is a schematic configuration diagram of a refrigeration cycle of an air conditioner. The air conditioner in the present embodiment is configured by connecting an indoor unit 1 installed indoors and an outdoor unit 2 installed outdoor using a refrigerant pipe 3.

  The indoor unit 1 includes an indoor heat exchanger 5 that exchanges heat between indoor air and a refrigerant, and an indoor fan 6 that promotes heat exchange in the indoor heat exchanger 5 and blows air into the room. Moreover, the temperature sensor 7 which is an indoor temperature detection means which detects indoor temperature, and the humidity sensor 8 which is an indoor humidity detection means which detects indoor humidity are provided.

  The outdoor unit 2 includes an outdoor heat exchanger 9 that exchanges heat between the outdoor air and the refrigerant, an outdoor fan 10 that promotes heat exchange in the outdoor heat exchanger 9 and blows air, and compresses the refrigerant and discharges high-temperature refrigerant. A compressor 11 for switching, a four-way valve 12 for switching the flow path of the refrigerant, and a decompressor 13 for decompressing the refrigerant.

  And at the time of air_conditionaing | cooling operation, the refrigerating cycle is comprised so that a refrigerant | coolant may flow in order of the compressor 11, the four-way valve 12, the outdoor heat exchanger 9, the decompression device 13, the indoor heat exchanger 5, the four-way valve 12, and the compressor 11. During the heating operation, the refrigerant flow path is reversed by switching the four-way valve 12.

  Further, on the front side of the indoor unit 1, the front panel 20 that opens during the air conditioning operation and closes when the air conditioning operation is stopped, the air outlet 21 that blows air into the room, and the upper and lower blades that change the wind direction from the air outlet 21 up and down. 22 and left and right blades (not shown) for changing the direction of the wind from the outlet 21 to the left and right.

  Further, on the upstream side of the airflow flowing into the indoor heat exchanger 5 of the indoor unit 1, an air filter 5a that prevents impurities to the indoor heat exchanger 5 and a cleaning that automatically removes dust accumulated on the air filter 5a. And a mechanism 5b. Then, by driving the indoor blower fan 6, an air flow 6a indicated by a dotted arrow in FIG. 2 is generated, and after passing through the air filter 5a, the indoor heat exchanger 5 exchanges heat between the refrigerant and the indoor air. It is blown into the room.

  In addition, the indoor unit 1 is provided with a display plate 23 that displays an operation status or the like at a location that the user can visually recognize when the front panel 20 is opened.

  The remote control device 30 is provided with a remote control device 30 that gives a driving instruction to the indoor unit 1. The remote control device 30 includes a display unit 31 that displays driving information and other information, and an operation unit 32 that performs setting changes and commands. The operation unit 32 includes a plurality of buttons.

  The remote control device 30 can set an instruction for cooling operation or heating operation and a reference indoor set temperature, and in normal air conditioning operation, the air conditioning operation is performed so that the reference indoor set temperature is obtained.

  Next, in the air conditioner configured as described above, the automatic cleaning function of the air conditioner of the present embodiment will be described.

  The air conditioner in the present embodiment has an automatic cleaning function for automatically cleaning the air filter 5a by the cleaning mechanism 5b.

  FIG. 3 is a schematic view showing an example of the cleaning mechanism 5b. As shown in FIG. 3, the cleaning mechanism 5b in the present embodiment includes a nozzle 5c that is driven left and right on the front side of the air filter 5a, a suction port 5d that is provided on the side facing the air filter 5a, and a nozzle. The drive mechanism 5e drives the left and right 5c.

  The drive mechanism 5e is configured by a motor, a gear, and the like, and further includes a fan that generates a suction force for sucking dust from the suction port 5d. Furthermore, the dust sucked out from the suction port 5d may be configured to be accumulated inside the nozzle 5c, or the suction port 5d is connected to an exhaust hose communicating with the outdoors so that the dust is discharged to the outdoors. May be.

  When the automatic cleaning function is enabled, the automatic cleaning operation is started when a predetermined condition is satisfied. When the automatic cleaning of the air filter 5a is started, the automatic cleaning is performed by the movement in which the nozzle 5c is driven in the horizontal direction and the movement in which the suction port 5d is driven in the vertical direction. In FIG. 3, each movement is indicated by an arrow. Note that the predetermined condition referred to here is a condition determined by a condition set by the remote control device 30.

  FIG. 4 shows an example of the state of the automatic cleaning function, and shows a state where the suction port 5d is located on the route E. As shown in FIG. 4, when the nozzle 5c is driven in the left-right direction with the suction port 5d in the route E, horizontal cleaning is performed on the left and right of the route E. When the cleaning of the route E is completed, the suction port 5d is driven up and down to clean the other routes.

  In FIG. 3, nine routes A to I are set, but the present invention is not limited to this, and the number of routes may be increased or decreased depending on the size of the air filter 5a. In this embodiment, the route is completely cleaned by reciprocating from left to right and further from right to left.

  FIG. 5 is a view showing a movement when the entire surface of the air filter 5a is cleaned. As shown in FIG. 5, when cleaning the entire air filter 5a, after reciprocating from left to right and further from right to left in the route A, the suction port is moved to the route B, Clean from right to left and from left to right.

  This is repeated in sequence, and the entire cleaning is completed by cleaning all routes up to route I. FIG. 5 shows a diagram in which the entire surface is cleaned in the order of route A → route B → route C → route D → route E → route F → route G → route H → route I. May be selected at random, and in the case of full cleaning, if the condition that all routes are cleaned is satisfied, route C may be cleaned next to route A. In the present embodiment, the left end is the starting point of the cleaning start (start of driving of the nozzle 5c). Of course, the right end may be the starting point of the cleaning start.

  Next, the standard mode and the careful mode of the automatic cleaning function will be described. In the present embodiment, by operating the operation unit 32 of the remote control device 30, two types can be switched between a standard mode for cleaning the air filter 5a and a careful mode with a higher cleaning frequency than the standard mode. Yes.

  By configuring in this way, the user can set it according to the usage environment, so that an automatic cleaning operation can be performed in accordance with the usage environment, and dust enters the back surface of the air filter 5a. This can be prevented, and the user can easily change the mode of the automatic cleaning function because the normal user, such as the remote control device 30, can switch with a device for setting the operation or the like.

First, the standard mode will be described. In the standard mode, the number of times the nozzle 5c is driven in the left-right direction is determined based on the driving situation. The operation status is composed of the operation time of the air conditioner, the type of cooling operation or heating operation, and the correspondence relationship between the operation status and the number of times of driving the nozzle 5c is set in advance and satisfies the operation status. In this case, the number of times of driving the nozzle 5c is determined.

  FIG. 6 is a diagram illustrating a correspondence relationship between the operation state and the number of times of driving the nozzle 5c. In the present embodiment, the number of times of the nozzle 5c is determined in accordance with the cumulative operation time of the air conditioning operation while the number of times is different between the cooling operation and the heating operation. Note that the correspondence shown in FIG. 6 is merely an example, and the present invention is not limited to this. That is, the method for determining the number of times of driving the nozzle 5c can be appropriately changed according to the system.

  However, as the cumulative operation time increases as in the present embodiment, it is assumed that more dust is accumulated. Therefore, as the cumulative operation time increases, the number of times of driving the nozzle 5c is increased. The dust from the air filter 5a can be removed appropriately.

  For example, when the number of times of driving the nozzle 5c is determined to be two under the conditions as shown in FIG. 6, two routes are selected from the routes B to I at random or according to a predetermined rule. Here, when the route C and the route E are selected, they are sequentially cleaned in the order of route A → route C → route E as shown in FIG. In addition, the order of the cleaning of the route A, the route C, and the route E may be any order. After each automatic cleaning operation, the suction port returns to the route A, and each cleaning operation starts from the route A. Therefore, the route A is always executed during each automatic cleaning operation, and the number of times of driving the route A is not included in the number of times of nozzle driving determined in FIG.

  The number of times of driving the nozzle 5c is determined again in the next operation, but the route selected in the next operation is a route that has not been selected in the previous automatic cleaning operation. This is because it does not overlap with the previous driving route.

  For example, when route A, route C, and route E are selected in the previous operation, and the number of times of driving the nozzle 5c is selected as 4 times in the next operation, 4 routes from routes other than the route C and route E are selected. It is necessary to select a route.

  As described above, by repeatedly selecting the route, the entire surface of the air filter 5a is finally cleaned.

  Further, in the present embodiment, when the entire cleaning of the air filter 5a is finished, the cleaning is finished after any one of the routes is cleaned. That is, after the entire surface cleaning is completed, a predetermined route is selected at random, and additional cleaning is performed. As a result, the frequency of cleaning can be improved and dust accumulation can be prevented. This will be described with reference to FIG.

  FIG. 8 is an image diagram of the standard mode in the present embodiment. As shown in FIG. 8, when the number of driving times of the nozzle 5c is selected as eight times in the first automatic cleaning operation, all the routes are selected, so two additional predetermined routes are selected. Finish cleaning. In FIG. 8, the two additional routes are shown with an enclosure.

  Next, when the driving frequency of the nozzle 5c is selected as 4 times in the second automatic cleaning operation, the automatic cleaning operation of 4 routes is performed and the automatic cleaning operation is terminated. When the number of times the nozzle 5c is driven is selected as the fourth automatic cleaning operation, the entire cleaning is completed together with the second automatic cleaning operation, so two additional predetermined routes are added. Select to finish cleaning.

  By repeating the entire surface cleaning and the additional cleaning in this manner, the cleaning frequency of the added predetermined route is performed at the timing when the entire surface cleaning is completed, so that the frequency of cleaning can be improved as a whole.

  In this embodiment, two routes are selected after cleaning the entire surface. However, the present invention is not limited to this. For example, one route may be added or three routes may be added. Also good. That is, after the entire cleaning is completed, a predetermined number of times (> 1) of routes are additionally selected and cleaned, so that the frequency of cleaning can be improved, and thus dust accumulation on the air filter 5a can be prevented. it can.

  For example, the cleaning frequency can be improved by 1 route / (9 routes-route A) = 1 route / 8 routes = 12.5% by performing additional cleaning of one route every time the entire surface cleaning is performed, By performing additional cleaning of 2 routes each time the entire surface is cleaned, the cleaning frequency can be improved by 2 routes / 8 routes = 25%. However, since the cleaning time becomes longer just by adding the route, it is desirable to set an appropriate time according to the system.

  Next, the careful mode will be described. In the careful mode, the number of times of driving the nozzle 5c is determined on the basis of the operating state in the same manner as in the standard mode, but in the careful mode, the number of times of driving is larger than that in the standard mode. In the present embodiment, the number of times of driving is three times the number of times of driving in the standard mode.

  For example, when the careful mode is selected and the number of times of driving the nozzle 5c is determined to be 4 under the conditions shown in FIG. 6, the number of times of driving is 4 times × 3 times 12 times. Then, automatic cleaning is performed so that the number of times of driving the nozzle 5c is 12.

  When the elaborate mode is selected as described above, the dust accumulation on the air filter 5a is prevented and the dust is prevented from entering the back surface of the air filter 5a by increasing the cleaning frequency as compared with the standard mode. be able to. In the present embodiment, the number of times of nozzle driving in the careful mode is set to three times the number of times of nozzle driving in the standard mode. However, the number of times is not limited to this, and may be two times or four times. It is also possible to realize an elaborate mode with simple control by setting an integral multiple.

  FIG. 9 is an image diagram of a careful mode in the present embodiment. As shown in FIG. 9, when the number of driving times of the nozzle 5c is selected as eight times in the first automatic cleaning operation, the nozzle 5c is reciprocated only 8 times × 3 = 24 times. In addition, since the standard mode and the careful mode are controlled by the same algorithm, after the entire cleaning is completed, an additional two-route cleaning operation is performed. Therefore, route A → route C → route E → route G → route I → route B → route D → route F → route H → route C → route E → route C → route E → route G → route I → route B → Cleaning is performed in the order of route D-> route F-> route H-> route G-> route I-> route C-> route E-> route G-> route I. The additional cleaning route after the entire surface cleaning is performed is shown in a box in FIG.

  Next, when the number of driving times of the nozzle 5c is selected to be 4 in the second automatic cleaning operation, the nozzle 5c is driven to reciprocate only 4 times × 3 = 12 times. When the careful cleaning mode is selected, the nozzle 5c is reciprocated three times as many times as in the standard mode.

  In addition, the number of times of performing the cleaning operation is included in the number of times of performing in the careful mode. That is, in the case of the first automatic cleaning operation shown in FIG. 9, the total number of additional cleanings of route C and route E after the entire surface cleaning and additional cleanings of route G and route I is included. And 24 times.

However, as shown in the route of the third automatic cleaning operation of FIG. 9, when it is determined that the nozzle 5c is driven to reciprocate only 4 times × 3 = 12 times, the entire surface is cleaned by the driving of the nozzle 5c for the 12th time. It may happen. In such a case, the entire surface cleaning is completed, so after cleaning each route 4 times x 3 = 12 times, additional 2 routes are cleaned to complete the automatic cleaning operation. Yes.

  As described above, when the careful mode is selected as compared with the standard mode, the cleaning operation can be performed according to the environment by increasing the cleaning time (increasing the number of times of driving the nozzle 5c). By performing the elaborate mode with the same algorithm, it can be realized with simple control without creating a complicated program.

  FIG. 10 is a diagram showing the upper limit of the number of times the nozzle 5c is driven. As shown in FIG. 10, an upper limit value of the number of times of driving the nozzle 5c is provided. This is because as the number of times of driving of the nozzle 5c increases, the time for the automatic cleaning operation after the air conditioning operation of the indoor unit 1 is stopped becomes longer. An upper limit is set so that the operation time does not become longer. In addition, the upper limit value prescribed | regulated in FIG. 10 shows an example, and is not limited to the time shown in FIG.

  When the heating operation is performed for 11 hours to 12 hours, the number of times of driving of the nozzle 5c determined based on FIG. 6 is 6 times, and 18 times in the careful mode. On the other hand, the number of driving times of the nozzle 5c determined based on FIG. 10 is 6 times in the standard mode and 18 times in the careful mode. Therefore, in any case, the number of times of driving the nozzle 5c is equal to or less than the upper limit value defined in FIG. 10, but in this embodiment, after the entire surface cleaning is completed, two routes are additionally cleaned. For this reason, the upper limit may be exceeded.

  For example, if the cleaning is completed during the sixth reciprocating drive of the nozzle 5c in the standard mode, two routes are added and the seventh and eighth reciprocating cleanings are performed. When the entire surface cleaning is completed at the time of reciprocating driving, two routes are added and the 19th and 20th reciprocal cleaning may be performed. In such a case, since it exceeds the upper limit value, the cleaning operation is terminated by setting the number of times the nozzle 5c is driven to the upper limit value in order not to perform unnecessary cleaning operation.

  FIG. 11A is a state diagram of the display unit 31 when the standard mode is selected, and FIG. 11B is a state diagram of the display unit 31 when the careful mode is selected. As shown in FIGS. 11 (a) and 11 (b), when the careful mode is selected, it is understood that the user has selected the careful mode by performing a display 33 that shows that the careful mode is selected. be able to. This is because the cleaning time becomes longer when the elaborate mode is selected, and the indoor unit 1 is in operation until the automatic cleaning operation is completed after instructing the indoor unit 1 to stop operation. This is to prevent the user from misjudging that the user is out of order.

  FIG. 12 is an enlarged view of the display board 23. 12A is a state diagram during normal operation, FIG. 12B is a state diagram during standard mode, and FIG. 12C is a state diagram during careful mode. During normal air conditioning operation, only the operation LED 23 is lit as shown in FIG. 12A, and during the cleaning operation when the standard mode is selected, the cleaning operation LED 24 is added to the operation LED 23 as shown in FIG. 12B. Light.

Further, during the cleaning operation when the careful mode is selected, the careful cleaning operation LED 25 is lit in addition to the operation LED 23 as shown in FIG. Thus, the user can easily confirm the current mode of cleaning operation by changing the LED to be lit in the standard mode and the careful mode. In addition, when the LED to be lit in the standard mode and the careful mode is shared, it can be displayed in an easy-to-understand manner for the user by changing the color to be lit in each mode.

  FIG. 13 is an enlarged view of a main part in the vicinity of the suction port 5d (XX sectional view of FIG. 4). Two types of brushes, a coarse brush 5f and a fine brush 5g, are provided in the vicinity of the suction port 5d, and on the opposite side of the suction port 5d with respect to the coarse brush 5f, A pad 5h using silicon foam is provided.

  By using two types of brushes, when the nozzle 5c is driven leftward or rightward, it is possible to prevent dust accumulated on the air filter 5a from being scraped and entering the back side of the air filter 5a. .

  As described above, by allowing the user to select the standard cleaning mode and the careful mode in the present embodiment, the user can perform appropriate cleaning operation according to the installation environment of the air conditioner. Since it can be selected and set, accumulation of dust on the air filter 5a can be prevented, and entry of dust into the back side of the air filter 5a can be prevented.

(Embodiment 2)
In the second embodiment, the cleaning mechanism is different from that of the first embodiment, and other parts (for example, display on the remote control device 30) are applied to the second embodiment as in the first embodiment. Can do. In the first embodiment, the front surface of the air filter 5a is driven by the nozzle 5c to clean the dust on the air filter 5a, whereas in the present embodiment, the air filter 5a itself is driven and cleaned. The mechanism 5b is different in that it is fixed. In addition, the same code | symbol is attached | subjected about the site | part same as Embodiment 1, and description is abbreviate | omitted.

  FIG. 14 is a configuration diagram of the cleaning mechanism according to the second embodiment, and FIG. 15 is an enlarged view of a main part viewed directly from the Y direction. The cleaning mechanism 5b according to the present embodiment includes a dust collecting unit 5h for collecting dust therein, a dust collecting port 5i in the dust collecting unit 5h, a rotating brush 5k in the dust collecting port 5i, and an air filter. It has an air filter drive mechanism 5j that drives 5a up and down.

  The air filter drive mechanism 5j is composed of a motor, a gear, and the like, and drives the air filter 5a up and down. Further, the dust collecting unit 5h is always fixed, and the air filter 5a is driven up and down relatively with respect to the dust collecting unit 5h, so that the dust on the air filter 5a is scraped off by the brush 5k, and the dust intake 5i. The dust is taken into the dust collecting unit 5h via the. The dust taken into the dust collecting unit 5h may be stored in the dust collecting unit 5h and discarded by the user, or may be automatically discharged from the dust collecting unit 5h. .

  FIG. 16 is a view showing a movement when the entire surface of the air filter 5a in the second embodiment is cleaned. As shown in FIG. 16, when the automatic cleaning operation is started from step 161, the air filter 5a is driven upward relative to the dust collecting unit 5h, and after step 162, the air filter is moved to step 163. The air filter 5a is driven until the dust collecting unit 5h is positioned at the bottom of 5a.

  When the dust collecting unit 5h is positioned at the lowermost part of the air filter 5a, the air filter 5a is driven downward relative to the dust collecting unit 5h, and returns to the original position through step 165. At 166, the entire cleaning of the air filter 5a is completed.

  In the present embodiment, the dust collecting unit 5h is provided so as to be located at the uppermost part of the air filter 5a. However, the present invention is not limited to this, and the dust collecting part is provided so as to be located at the lowermost part of the air filter 5a. 5h may be provided, and in that case, the air filter 5a may be driven in the direction opposite to the step shown in FIG.

  Further, the dust collecting unit 5h may be provided in the middle of the air filter 5a. In that case, the air filter 5a may be driven up and down to clean the entire surface of the air filter 5a.

  The air conditioner configured as described above has a standard mode and a careful mode in the automatic cleaning function in the present embodiment as well as the first embodiment, and can be selected by the user.

  In the case of the cleaning mechanism as shown in the second embodiment, the entire surface is cleaned every time the automatic cleaning operation is performed. Therefore, when the standard mode is selected, the entire surface of the air filter 5a is cleaned only once. On the other hand, when the careful mode is selected, the entire surface of the air filter 5a is cleaned as many times (for example, three times) as in the standard mode.

  Further, the number of times the air filter 5a is driven in the standard mode may be determined according to the cumulative operation time of the air conditioning operation. FIG. 17 is a diagram showing the number of times the air filter 5a is driven corresponding to the cumulative operation time of the air conditioning operation. Note that the number of times of driving the air filter 5a is not uniquely determined as shown in FIG. 17, and there is no problem in appropriately changing the number of times of driving.

  As shown in FIG. 17, when the standard mode is selected, the air filter 5a is driven once for an air conditioning operation of 11 hours, and the air filter 5a is driven for an air conditioning operation of 13 hours. 2 times. The number of times the air filter 5a is driven here is one at the timing when the cleaning of the entire surface of the air filter 5a is completed.

  Further, the number of times the air filter 5a is driven in the careful mode is an integral multiple (for example, 3 times) the number of times the air filter 5a is driven when the standard mode is selected. By using an integral multiple in this way, simple control and a standard mode algorithm can be used, so that complicated control is not required.

  FIG. 18 is a diagram showing the upper limit of the number of times the air filter 5a is driven. As shown in FIG. 18, the upper limit value of the number of times of driving the air filter 5a is set in each mode. As in the first embodiment, if the automatic cleaning operation is performed for an excessively long time after instructing the indoor unit to stop the air-conditioning operation, the user may be mistaken for a malfunction. There is sex. Therefore, in this embodiment, an upper limit value is provided, and the air filter 5a is not driven above the upper limit value.

  For example, as shown in FIG. 17, the number of times of driving the air filter 5a in the careful mode when the air-conditioning operation is performed for 12 hours or more is 6 times if it is simply an integral multiple of the standard mode. As shown, since the upper limit is 5 times, the air filter 5a is driven 5 times. Thus, the time of the automatic cleaning operation and the cleaning condition of the air filter 5a are made compatible.

As described above, by allowing the user to select the standard cleaning mode and the careful mode in the present embodiment, the user can perform appropriate cleaning operation according to the installation environment of the air conditioner. Since it can be selected and set, dust can be prevented from accumulating on the air filter 5a, and even if the cleaning mechanism is driven by the air filter 5a, dust can enter the back side of the air filter 5a. Can be prevented.

  As described above, the present invention is not only an air conditioner in which one indoor unit is connected to one outdoor unit, but also a multi-type air conditioner in which a plurality of indoor units are connected to one outdoor unit. Even a machine can be applied.

5a Air filter 5b Cleaning mechanism 5c Nozzle 5d Suction port

Claims (5)

An air conditioner having an automatic cleaning function for automatically cleaning a filter, wherein the mode of the automatic cleaning function is provided with a standard mode and a careful mode, and the pre-commemorative mode is a cleaning time of the filter as compared with the standard mode. The cleaning mechanism or the number of times of driving of the filter when selecting the pre-commemorative mode is an integer multiple of the number of times of driving of the cleaning mechanism or the filter in the standard mode, and the cleaning mechanism or When the upper limit number of times is set for the number of times the filter is driven and the cleaning mechanism or the number of times the filter is driven exceeds the upper limit number when the pre-commemorative mode is selected, the cleaning mechanism or the filter is driven more than the upper limit number of times. An air conditioner characterized by An air conditioner comprising: a remote control device for operating the air conditioner according to claim 1, wherein the remote control device is configured to be able to switch between the standard mode and the pre-commemorative mode. The remote control device includes a display unit for displaying driving information, and when the previous memorial entry mode is selected, the display unit displays that the previous memorial entry mode is selected. 2. The air conditioner according to 2. The automatic cleaning function has a configuration in which a cleaning mechanism drives the front side of the filter to remove dust, or a configuration in which a cleaning mechanism is arranged on the front side of the filter and the filter itself drives to remove dust. 4. The structure according to claim 1, wherein when the pre-commemorative mode is selected, the driving time of the cleaning mechanism or the driving time of the filter is made longer than that of the standard mode. The air conditioner of any one of Claims. The air conditioner according to claim 1, wherein the number of times the cleaning mechanism or the filter is driven when the standard mode is selected is determined according to an operation time of the air conditioner according to claim 1 .