H.\kmihuinterwoven\NRPonbl\DCC\KMH\S149900_ I dc-29/07/2013 DESCRIPTION TITLE OF THE INVENTION AIR CONDITIONER TECHNICAL FIELD [0001] The present invention relates to an air conditioner. BACKGROUND ART [0002] Conventionally, there has been proposed an air conditioner which sterilizes and cleans an inside the air conditioner by killing mold, germs, or the like inside the air conditioner. [0003] For example, Japanese Patent No. 4225773 (Patent Literature 1) discloses an air conditioner which is equipped with an ion generator, for generating positive ions and negative ions, located in the vicinity of an exhaust port for exhausting air sucked inside the air conditioner from an inlet port by rotating an air blower. In this air conditioner, all operations of an heat exchanger, a compressor, and the like are stopped, only the air blower and the ion generator are operated, and an inside of the air conditioner is cleaned to kill mold or germs inside the air conditioner. At this time, by controlling an angle of a louver and guiding the air exhausted from the exhaust port toward a direction of the inlet port, the ions generated from the ion generator are externally exhausted by the air blower and are again sucked inside the air conditioner from the inlet port by the air blower. [0004] In addition, Japanese Patent No. 4277166 (Patent Literature 2) discloses an air conditioner which is equipped with an auxiliary opening and closing panel, capable of forming an short circuit of air in a position between an air inlet port and an air outlet port. In the air conditioner, in a state where by opening the auxiliary opening and closing panel, the short circuit of air is formed between the auxiliary opening and closing panel and the air outlet port, a first clean mode in which a indoor air blowing fan is operated while ozone is being generated by an electric dust collector is performed for a predetermined period of time and thereafter, a second clean mode in which the auxiliary opening and closing panel is closed and the indoor air blowing fan is counter-rotated while ozone is being generated by a negative ion generator is performed for a predetermined period of time.
H-\kmnh\iron \NRPonblDCC\KMH\5 14990 I doc.29107/2013 -2 CITATION LIST PATENT LITERATURE [0005] Patent Literature 1: Japanese Patent No. 4225773 Patent Literature 2: Japanese Patent No. 4277166 SUMMARY OF THE INVENTION TECHNICAL PROBLEM [0006] However, in the air conditioner disclosed in Japanese Patent No. 4225773 (Patent Literature 1), the ion generator is placed in the vicinity of the exhaust port, and the air blower is placed upstream of an air current from the ion generator. Therefore, inside the indoor apparatus, the upstream side of the air current from the ion generator, for example, the air blower and the like cannot be effectively cleaned. [0007] In addition, in the air conditioner disclosed in Japanese Patent No. 4277166 (Patent Literature 2), by counter-rotating the indoor air blowing fan in the second clean mode, the air which does not pass through a part such as a filter placed around the air inlet port flows into an inside of an indoor apparatus. Therefore, after the inside of the air conditioner is cleaned in the first clean mode, there may be a case where when the second clean mode is performed, the dust outside the indoor apparatus directly flows into the inside of the air conditioner. [0008] Therefore, the present invention seeks to provide an air conditioner capable of effectively cleaning an inside of the air conditioner. SUMMARY OF THE INVENTION [0009] An air conditioner according to the present invention includes: a fan; a housing; a wind direction change part; an ion generator; and a controller. [0010] The housing is to house the fan and has an inlet port for sucking in air and an outlet port for blowing out the air sent out by the fan. The wind direction change part is to open and close the outlet port and to change a direction of the air sent out by the fan. The ion generator is to generate ions inside the housing. The controller is to control the fan, the wind direction change part, and the ion generator. [0011] When cleaning of an inside of the housing is performed, the controller controls the H- knh\lnicrwovcn\NRPotb\DCCKMH\5149900_ I doc-29/17/20 I -3 fan, the wind direction change part, and the ion generator so as to sequentially perform an open air blowing process in which the ion generator is caused to generate the ions, and the wind direction change part is controlled such that the air sent out by the fan passes from the outlet port through the vicinity of a front side of the housing and is sucked in from the inlet port; and a closed air blowing process in which with the outlet port being closed by the wind direction change part, the ion generator is caused to generate the ions and an air blowing operation is performed by driving the fan. [0012] The controller, for example, by allowing a user to operate a remote controller, cleans an inside of the housing. In addition, for example, it may be set that after a predetermined operation such as a cooling operation, a heating operation, or a dehumidifying operation, the inside of the housing is cleaned. [0013] When the cleaning of the inside of the housing is performed, first, in the open air blowing process, the ion generator is caused to generate the ions and the wind direction change part is controlled such that the air sent out by the fan passes from the outlet port through the vicinity of the front side of the housing and is sucked in from the inlet port, thereby forming the so called short circuit of the air. Thus, in the open air blowing process, at least the vicinity of the inlet port, the heat exchanger, or the like is cleaned by the ions generated by the ion generator. [0014] Next, in the closed air blowing process, with the outlet port being closed by the wind direction change part, the ion generator is caused to generate the ions and the air blowing operation is performed by driving the fan. Thus, in the closed air blowing process, at least the fan or the vicinity of the outlet port is cleaned by the ions generated by the ion generator. [0015] Thus, an air conditioner capable of effectively cleaning an inside of the air conditioner can be provided. [0016] It is preferable that the air conditioner according to the present invention includes a selection part allowing a user to select the cleaning of the inside of the housing, and the controller, when the cleaning of the inside of the housing is selected by the selection part, controls the fan, the wind direction change part, and the ion generator so as to sequentially perform a drying process in which the fan is driven and the air conditioner performs an air blowing operation or a heating operation; the open air blowing process; and the closed air H-\kh\Ilntcenovn\NRPonbl\DCC\KMH\S1499_I.doc-29/07/20I1 -4 blowing process. [0017] When the cleaning of the inside of the housing is selected by the selection part, the controller controls the fan, the wind direction change part, and the ion generator so as to sequentially perform the drying process; the open air blowing process; and the closed air blowing process. [0018] First, in the drying process, the fan is driven so as to cause the air conditioner to perform the normal air blowing operation or the heating operation, thereby drying the inside of the housing. Thereafter, the open air blowing process and the closed air blowing process are sequentially performed. [0019] As described above, by performing the drying process before performing the open air blowing process and the closed air blowing process, the inside of the housing can be dried, thereby allowing the inside of the housing to be maintained cleaner. When in the drying process, the heating operation is performed, the inside of the housing is dried in a further ensured manner, thereby allowing the inside of the housing to be maintained clean. [0020] It is preferable that the air conditioner according to the present invention has a plurality of operation modes and is configured to be operable to previously set that the cleaning of the inside of the housing is performed at a predetermined time, and it is preferable that the plurality of operation modes includes: a cooling operation; a heating operation; a dehumidifying operation; a normal air blowing operation; and a room cleaning operation. It is preferable that in a case where it is set that after performing the cooling operation or the dehumidifying operation, the cleaning of the inside of the housing is performed, the controller sequentially performs; the drying process in which the fan is driven and the air conditioner performs the normal air blowing operation or the heating operation; the open air blowing process; and the closed air blowing process, and in a case where it is set that after performing the heating operation, the normal air blowing operation, or the room cleaning operation, the cleaning of the inside of the housing is performed, the fan, the wind direction change part, and the ion generator are controlled so as to sequentially perform the open air blowing process and the closed air blowing process. [0021] After the cooling operation or the dehumidifying operation, dew condensation is caused as least on the heat exchanger. Therefore, in a case where it is set that after performing the cooling operation or the dehumidifying operation, the cleaning of the inside H.\ kmnh ntenvoven\NRPorbl\DCC\KMH\5149900. doc.29107/2013 -5 of the housing is performed, the drying process is first performed and the inside of the housing is dried, and thereafter, the open air blowing process and the closed air blowing process are performed, thereby allowing the inside of the housing to be maintained cleaner. [0022] On the other hand, in a case where it is set that after performing the heating operation, the normal air blowing operation, or the room cleaning operation, the cleaning of the inside of the housing is performed, since no dew condensation is caused on the heat exchanger or inside the housing, it is not required to perform the drying process. [0023] Thus, in accordance with each of the operation modes, the inside of the housing can be cleaned. ADVANTAGEOUS EFFECTS OF THE INVENTION [0024] As described above, according to the present invention, an air conditioner capable of effectively cleaning an inside of the air conditioner can be provided. BRIEF DESCRIPTION OF THE DRAWINGS [0025] Fig. 1 is a perspective view showing the whole of an air conditioner according to one embodiment of the present invention. Fig. 2 is a diagram schematically illustrating an inside of the air conditioner according to the one embodiment of the present invention. Fig. 3 is a view showing the whole of a remote controller of the air conditioner according to the one embodiment of the present invention. Fig. 4 is a block diagram showing a configuration of control-related components in the air conditioner according to the one embodiment of the present invention. Fig. 5 is a diagram illustrating a state in which a heating operation or an air blowing operation of the air conditioner according to the one embodiment of the present invention is performed. Fig. 6 is a diagram illustrating a state in which a cooling operation of the air conditioner according to the one embodiment of the present invention is performed. Fig. 7 is a diagram illustrating a state in which a short circuit operation of the air conditioner according to the one embodiment of the present invention is performed. Fig. 8 is a diagram illustrating a state in which a filter cleaning operation of the air 11 \kmh~ln iem oe\NRPortbl\DCOKMH\514990_) I doc-29/7/200 -6 conditioner according to the one embodiment of the present invention is performed. DESCRIPTION OF EMBODIMENTS [0026] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. [0027] As shown in Fig. 1, the whole of an air conditioner 1 which is an indoor apparatus according to the one embodiment of the present invention is covered by a cabinet 100 as a housing. Inside the cabinet 100, a heat exchanger and a fan are housed. In the front of the cabinet 100, an outlet port is formed, and when an operation of the air conditioner I is stopped, the outlet port is covered by a louver 110 as a wind direction change part. [0028] As shown in Fig. 2, in the cabinet 100 of the air conditioner 1, an inlet port 101 and the outlet port 102 are formed. The inlet port 101 is formed in the topmost part of the cabinet 100. The outlet port 102 is formed in the lower part of and on a front side of the cabinet 100. [0029] Inside the inlet port 101, a filter 103 is placed. At the outlet port 102, the louver 1 10 is placed. In Fig. I and Fig. 2, the louver 1 10 is in a closed state. [0030] Inside the cabinet 100, mainly, a cross flow fan 120 as the fan, the heat exchanger 130, a filter cleaning device 140, and an ion generator 150 are housed. The cross flow fan 120 is placed in the substantially center of a vertical direction inside the cabinet 100. The heat exchanger 130 is placed above and in front of the cross flow fan 120 so as to be spaced from the cross flow fan 120. The filter cleaning device 140 is placed between the heat exchanger 130 and the cabinet 100. The filter cleaning device 140 includes: a filter guide 141; a duct 142; a brush 143 placed inside the duct 142; and a filter driving device 144 for moving the filter 103. Between the cross flow fan 120 and the outlet port 102, the ion generator 150 is placed. [0031] The brush 143 of the filter cleaning device 140 is placed inside the duct 142 so as to be allowed to contact the filter 103. The duct 142 is connected to an exhaust means (not shown) of the air conditioner 1. The filter driving device 144 moves the filter 103 along the filter guide 141. [0032] The ion generator 150 generates positive and negative ions. It is preferable that the ion generator 150 generates ions having a sterilizing effect as the positive and negative I]-\kmih Imcrwoven\NRPortbl\DCC\KH\5149900_1 o-29/07/2013 -7 ions and that the ion generator 150 generates, for example, H*(H 2 0)m (m is any integer) as the positive ions and 02(H 2 0), (n is any integer) as the negative ions. The above mentioned positive ions and negative ions are generated, thereby enhancing the sterilizing effect due to the ions. [0033] As shown in Fig. 3, in a remote controller 200 of the air conditioner I (Fig. 1 and Fig. 2), at least an inside cleaning button 210 as a selection part for allowing a user to select cleaning of an inside of the cabinet 100 and a filter cleaning button 220 as a selection part for allowing a user to select cleaning of the filter 103 are placed. A user can select the cleaning of the inside of the cabinet 100 by pressing the inside cleaning button 210. In addition, a user can select the cleaning of the filter 103 by pressing the filter cleaning button 220. [0034] As shown in Fig. 4, as a configuration of control-related components, the air conditioner I includes: the remote controller 200 including the inside cleaning button 210 and the filter cleaning button 220; a controller 160; a louver motor 111; a fan motor 121; a refrigeration cycle 131; the filter driving device 144 of the filter cleaning device 140; a brush motor 145; and the ion generator 150. The louver motor 111 drives the louver 110 (Fig. 2). The fan motor 121 drives the cross flow fan 120 (Fig. 2). The refrigeration cycle 131 adjusts a temperature of the heat exchanger 130 (Fig. 2). [0035] When a user operates the remote controller 200, a signal is transmitted to the controller 160. Based on the signal transmitted from the remote controller 200, the controller 160 having received the signal transmitted from the remote controller 200 transmits control signals to the louver motor I 1l, the fan motor 121, the refrigeration cycle 131, the filter driving device 144, the brush motor 145, and the ion generator 150, thereby controlling the above-mentioned members as described below. [0036] An operation of the air conditioner I configured as described above will be described. The air conditioner 1 has: a plurality of operation modes which are a heating operation; a cooling operation; a normal air blowing operation; a dehumidifying operation; and a room cleaning operation. In addition, a short circuit operation can be also performed. [0037] First, with reference to Fig. I through Fig. 5, the heating operation will be described. When a user operates the remote controller 200 so as to perform the heating operation of the air conditioner 1, the controller 160 transmits the control signal to the H \kmh\lnierwoven\NRPortbl\DCCM \5149900_ - .oc-29/07/20 13 -8 refrigeration cycle 131 to drive the refrigeration cycle 131, thereby controlling the refrigeration cycle 131 so as to raise a temperature of the heat exchanger 130. At the same time, the controller 160 transmits the control signal to the louver motor 111, thereby controlling the louver motor I I1 so as to open the outlet port 102 between a lower edge of the louver 110 and the cabinet 100. In addition, the controller 160 transmits the control signal to the fan motor 121, thereby controlling the fan motor 121 so as to send out air by the rotation of the cross flow fan 120. [0038] Thus, warm air heated by the heat exchanger 130 is blown out from the outlet port 102 by the cross flow fan 120. Since the louver 110 causes the outlet port 102 to open on the lower edge thereof, the warm air is sent out in a downward direction. During the heating operation, no dew condensation is caused on the heat exchanger 130. [0039] Also when a user operates the remote controller 200 so as to perform the normal air blowing operation of the air conditioner 1, as in the heating operation, the louver motor Il1 and the fan motor 121 are driven. In the normal air blowing operation, the refrigeration cycle 131 is not driven and the air sucked inside the cabinet 100 from the inlet port 101 is not heated and sent out as it is from the outlet port 102. During the normal air blowing operation, since the refrigeration cycle 131 is not driven, no dew condensation is caused on the heat exchanger 130. [0040] Also in the room cleaning operation, the above-described normal air blowing operation is performed. In the room cleaning operation, while the normal air blowing operation is being performed, the ion generator 150 is driven and ions are included in the air sent out from the outlet port 102. During the room cleaning operation, since the refrigeration cycle 131 is not driven, no dew condensation is caused on the heat exchanger 130. [0041] Next, with reference to Fig. I through Fig. 4 and Fig. 6, the cooling operation and the dehumidifying operation will be described. Since the cooling operation and the dehumidifying operation are substantially the same as each other, the cooling operation will be described. When a user operates the remote controller 200 so as to perform the cooling operation of the air conditioner 1, the controller 160 transmits the control signal to the refrigeration cycle 131 to drive the refrigeration cycle 131, thereby controlling the refrigeration cycle 131 so as to reduce a temperature of the heat exchanger 130. At the H:\kmnh\lnicocn\NRPonb\DCC\KMif\S149900_l dc-29/07/2013 -9 same time, the controller 160 transmits the control signal to the louver motor Il l1, thereby controlling the louver motor 111 so as to open the outlet port 102 between an upper edge of the louver 110 and the cabinet 100. In addition, the controller 160 transmits the control signal to the fan motor 121, thereby controlling the fan motor 121 so as to send out air by the rotation of the cross flow fan 120. [0042]Thus, cold air cooled by the heat exchanger 130 is blown out from the outlet port 102 by the cross flow fan 120. Since the louver 110 opens the outlet port 102 on the upper edge thereof, the cold air is sent out in an upward direction toward a ceiling of a room targeted for the air conditioning. During the cooling operation and the dehumidifying operation, since the temperature of the heat exchanger 130 is low, dew condensation is caused on the heat exchanger 130. [0043] Next, with reference to Fig. I through Fig. 4 and Fig. 7, the short circuit operation will be described. When the short circuit operation is performed, the controller 160 transmits the control signal to the louver motor 111, thereby controlling the louver motor 11l so as to open the outlet port 102 on the upper edge of the louver 110. At this time, the outlet port 102 is opened so as to be narrower than in the cooling operation. In addition, the controller 160 transmits the control signal to the fan motor 121, thereby controlling the fan motor 121 so as to send out air by the rotation of the cross flow fan 120. [0044] Thus, the air sent out from the outlet port 102 passes from the outlet port 102 through the vicinity of a front side of the cabinet 100 and is sucked in from the inlet port 101, thereby forming a so-called short circuit. [0045] Next, an inside cleaning operation of the air conditioner I performed when a user operates the inside cleaning button 210 of the remote controller 200 and selects cleaning of the inside of the cabinet 100 of the air conditioner 1 will be described with reference to Fig. I through Fig. 7. [0046] When a user presses the inside cleaning button 210 while any operation of the air conditioner I is stopped, a drying process is first performed. In the drying process, the controller 160 transmits the control signal to the ion generator 150, thereby controlling the ion generator 150 so as to generate the ions, and at the same time, the above-described heating operation or normal air blowing operation is performed. In the drying process, while the ions are being generated, the heating operation or the normal air blowing operation is performed for 30 minutes. In a case where a remaining time in the inside H \kmn IVoOc\NRPortbl\DCC\MH\ I 490_I doc.29/07/201 - 10 cleaning operation is displayed on a display part placed on an outer periphery of the cabinet 100 or a display part on the remote controller 200, the controller 160 controls the display part so as to display the remaining time. The drying process may be performed without driving the ion generator 150. [0047] In the drying process, for example, when a temperature of outside air is less than or equal to 24'C, the heating operation is performed, and when the temperature of the outside air is higher than 24'C, the normal air blowing operation is performed. In the drying process, when the heating operation is performed, after a lapse of 30 minutes, the controller 160 transmits the control signal to the refrigeration cycle 131, thereby stopping the driving of the refrigeration cycle 131 and stopping the heating of the heat exchanger 130. [0048] Next, an open air blowing process is performed. In the open air blowing process, while the ion generator 150 is being driven, the above-described short circuit operation is performed for 5 minutes. [0049] Lastly, a closed air blowing process is performed. In the closed air blowing process, the controller 160 transmits the control signal to the louver motor 111 so as to close the louver 110 while the ion generator 150 and the cross flow fan 120 are being driven. The closed air blowing process is performed for 5 minutes. [0050] Thereafter, the controller 160 transmits the control signals to the fan motor 121 and the ion generator 150, thereby stopping the driving of the cross flow fan 120 and the ion generator 150. In a case where a remaining time in the inside cleaning operation is displayed on the display part placed on the outer periphery of the cabinet 100 or the display part on the remote controller 200, the controller 160 sets the displayed remaining time at zero. [0051] As described above, the cleaning of the inside of the cabinet 100 is performed for the total of 40 minutes. By performing the closed air blowing process, sterilizing, mold proofing, or deodorizing around the outlet port 102 or on a back surface of the louver 110 can be conducted in an ensured manner, as compared with a case where only the conventional short circuit operation is performed. [0052] In addition, in a case where it is previously set that after stopping the heating operation, the normal air blowing operation, or the room cleaning operation, the cleaning i:\kmh\lnIc ovcnWRPorb\DCC\KMH\5149900_1 doc-29/07/2013 - 11 of the inside of the cabinet 100 is performed, when the heating operation, the normal air blowing operation, or the room cleaning operation is stopped, the heating operation, the normal air blowing operation, the room cleaning operation, or the like, performed immediately before the stopping, serves as a substitute for the drying process. This is because in the heating operation, no dew condensation is caused on the heat exchanger 130 and in the normal air blowing operation and the room cleaning operation, the refrigeration cycle 131 is not driven, and therefore, in the heating operation, the normal air blowing operation, and the room cleaning operation, the heat exchanger 130 or the inside of the cabinet 100 is sufficiently dried. Therefore, in a case where the heating operation, the normal air blowing operation, or the dehumidifying operation is performed until immediately before performing the inside cleaning operation, after stopping each of these operations, the open air blowing process is performed for 30 minutes without performing the drying process anew. Subsequently, the closed air blowing process is performed for 5 minutes and thereafter, the operation of the air conditioner I is stopped. As described above, after stopping the heating operation or the normal air blowing operation, the cleaning of the inside of the cabinet 100 is performed for the total of 35 minutes. [0053] In addition, in a case where the room cleaning operation is performed until immediately before performing the inside cleaning operation, after stopping the room cleaning operation, the open air blowing process is performed for 10 minutes without performing the drying process anew. Subsequently, the closed air blowing process is performed for 5 minutes and thereafter, the operation of the air conditioner I is stopped. As described above, after stopping the room cleaning operation, the cleaning of the inside of the cabinet 100 is performed for the total of 15 minutes. [0054] On the other hand, in a case where it is previously set that after stopping the cooling operation or the dehumidifying operation, the cleaning of the inside of the cabinet 100 is performed, when the cooling operation or the dehumidifying operation is stopped, the drying process is performed. This is because in the cooling operation and the dehumidifying operation, the dew condensation is caused on the heat exchanger 130 and the inside of the cabinet 100 is also likely to be damp, and therefore, it is required to sufficiently dry the inside of the cabinet 100. [0055] Therefore, in a case where the cooling operation or the dehumidifying operation is H \kmhaincrwovenNRPonbl\DCC\KMIIu149900_ I doc29A)7/201 - 12 performed until immediately before performing the inside cleaning operation, after stopping each of these operations, the drying process is first performed for 30 minutes. Thereafter, the open air blowing process is performed for 5 minutes. Subsequently, the closed air blowing process is performed for 5 minutes and thereafter, the operation of the air conditioner 1 is stopped. As described above, after stopping the cooling operation or the dehumidifying operation, the cleaning of the inside of the cabinet 100 is performed for the total of 40 minutes. [0056] In a case where in addition to the inside cleaning operation, a filter cleaning operation by the filter cleaning device 140 is performed, the later-described filter cleaning operation is performed. The filter cleaning operation may be performed before the inside cleaning operation or after the inside cleaning operation. However, by performing the filter cleaning operation before the inside cleaning operation and cleaning the filter 103 before the inside cleaning operation, dust attached to the filter 103 can be prevented from dropping inside the cleaned cabinet 100. [0057] As described above, the air conditioner I includes: the cross flow fan 120, the cabinet 100, the louver 110, the ion generator 150, the inside cleaning button 210, and the controller 160. [0058] The cabinet 100 houses the cross flow fan 120 and has the inlet port 101 for sucking in air and the outlet port 102 for blowing out the air sent out by the cross flow fan 120. The louver 110 is to open and close the outlet port 102 and to change a direction of the air sent out by the cross flow fan 120. The ion generator 150 is to generate the ions inside the cabinet 100. The inside cleaning button 210 is to allow a user to select the cleaning of the inside of the cabinet 100. The controller 160 is to control the cross flow fan 120, the louver 110, and the ion generator 150. [0059] When the cleaning of the inside thereof is performed, the controller 160 controls the cross flow fan 120, the louver 110, and the ion generator 150 so as to sequentially perform the open air blowing process in which the cross flow fan 120 is driven, the air conditioner 1 causes the ion generator 150 to generate the ions, and the louver 110 is controlled such that the air sent out by the cross flow fan 120 passes from the outlet port 102 through the vicinity of the front side of the cabinet 100 and is sucked in from the inlet port 101; and the closed air blowing process in which with the outlet port 102 being closed it:kmh\ncrwovcn\NRPrbl\DCC\KMH\149900 I doc-29/07/20 3 -13 by the louver 110, the ion generator 150 is caused to generate the ions and the air blowing operation is performed by driving the cross flow fan 120. [0060] In addition, when the cleaning of the inside of the cabinet 100 is selected by the inside cleaning button 210, the controller 160 controls the cross flow fan 120, the louver 110, and the ion generator 150 so as to sequentially perform the drying process in which the cross flow fan 120 is driven and the air conditioner I performs the normal air blowing operation or the heating operation; the open air blowing process in which the ion generator 150 is caused to generate the ions and the louver 110 is controlled such that the air sent out by the cross flow fan 120 passes from the outlet port 102 through the vicinity of the front side of the cabinet 100 and is sucked in from the inlet port 101; and the closed air blowing process in which with the outlet port 102 being closed by the louver 110, the ion generator 150 is caused to generate the ions and the air blowing operation is performed by driving the cross flow fan 120. [0061] As described above, the air conditioner I has: the plurality of operation modes which are the cooling operation; the heating operation; the dehumidifying operation; the normal air blowing operation; and the room cleaning operation. In a case where it is set that after performing the cooling operation or the dehumidifying operation, the cleaning of the inside of the cabinet 100 is performed, the controller 160 sequentially performs; the drying process in which the cross flow fan 120 is driven and the air conditioner I performs the normal air blowing operation or the heating operation; the open air blowing process in which the ion generator 150 is caused to generate the ions and the louver 110 is controlled such that the air sent out by the cross flow fan 120 passes from the outlet port 102 through the vicinity of the front side of the cabinet 100 and is sucked in from the inlet port 101; and the closed air blowing process in which with the outlet port 102 being closed by the louver 110, the ion generator 150 is caused to generate the ions and the air blowing operation is performed by driving the cross flow fan 120. [0062] On the other hand, in a case where it is set that after performing the heating operation, the normal air blowing operation, or the room cleaning operation, the cleaning of the inside of the cabinet 100 is performed, the cross flow fan 120, the louver I10, and the ion generator 150 are controlled so as to sequentially perform the open air blowing process and the closed air blowing process. When the heating operation, the normal air H umih\lmierwoven\NRPonbDXC\KM~uI499O_ I dc-29/07/20 3 - 14 blowing operation, or the room cleaning operation is stopped, the heating operation, the normal air blowing operation, or the room cleaning operation, performed immediately before stopping each of the operations, serves as the substitute for the drying process. [0063] As described above, by performing the drying process before performing the open air blowing process and the closed air blowing process, the inside of the cabinet 100 can be dried, thereby allowing the inside of the cabinet 100 to be maintained cleaner. When in the drying process, the heating operation is performed, the inside of the cabinet 100 is dried in a further ensured manner, thereby allowing the inside of the cabinet 100 to be maintained clean. [0064] In particular, after the cooling operation or the dehumidifying operation, the dew condensation is caused as least on the heat exchanger 130. Therefore, in a case where it is set that after performing the cooling operation or the dehumidifying operation, the cleaning of the inside of the cabinet 100 is performed, the drying process is first performed and the inside of the cabinet 100 is dried, and thereafter, the open air blowing process and the closed air blowing process are performed, thereby allowing the inside of the cabinet 100 to be maintained cleaner. [0065] On the other hand, in a case where it is set that after performing the heating operation, the normal air blowing operation, or the room cleaning operation, the cleaning of the inside of the cabinet 100 is performed, since no dew condensation is caused on the heat exchanger 130 or inside the cabinet 100, it is not required to perform the drying process. [0066] Thus, in accordance with each of the operation modes, the inside of the cabinet 100 can be cleaned. [0067] When the cleaning of the inside of the cabinet 100 is selected by the inside cleaning button 210, the controller 160 controls the cross flow fan 120, the louver 110, and the ion generator 150 so as to sequentially perform the drying process, the open air blowing process, and the closed air blowing process. [0068] First, in the drying process, the cross flow fan 120 is driven such that the air conditioner I performs the normal air blowing operation or the heating operation, thereby drying the inside of the cabinet 100. [0069] Next, in the open air blowing process, the ion generator 150 is caused to generate H \khltcmoven\NRPorbl\DCC\KMH\$14990I doc-29/07/2013 - 15 the ions and the louver 110 is controlled such that the air sent out by the cross flow fan 120 passes from the outlet port 102 through the vicinity of the front side of the cabinet 100 and is sucked in from the inlet port 101, thereby forming the so called short circuit of the air. Thus, in the open air blowing process, at least the vicinity of the inlet port 101, the heat exchanger 130, or the like is cleaned by the ions generated by the ion generator 150. [0070] Lastly, in the closed air blowing process, with the outlet port 102 being closed by the louver 110, the ion generator 150 is caused to generate the ions and the air blowing operation is performed by driving the cross flow fan 120. Thus, in the closed air blowing process, at least the cross flow fan 120 or the vicinity of the outlet port 102 is cleaned by the ions generated by the ion generator 150. [0071] As described above, by performing the closed air blowing process, the sterilizing, the mold proofing, or the deodorizing around the outlet port 102 or on the back surface of the louver 110 can be conducted in a more ensured manner, as compared with the case where only the conventional short circuit operation is performed, and the air conditioner I capable of effectively cleaning the inside of the air conditioner I can be provided. [0072] Next, with reference to Fig. I through Fig. 4 and Fig. 8, the filter cleaning operation by the filter cleaning device 140 will be described. [0073] In a case where it is previously set that after the cooling operation, the heating operation, or the dehumidifying operation, the filter cleaning operation is performed and the cleaning of the filter 103 of the air conditioner I is performed, the controller 160 transmits the control signal to the ion generator 150, thereby causing the above-described short circuit operation to be performed for 5 minutes while the ions are being generated. Thus, the filter 103 placed in the vicinity of the inlet port 101 or the heat exchanger 130 is cleaned by the ions. At the same time, static electricity is eliminated from the dust attached to the filter 103. [0074] In addition, also when a user operates the filter cleaning button 220 of the remote controller 200 so as to clean the filter 103 of the air conditioner 1, the controller 160 transmits the control signal to the ion generator 150, thereby causing the above-described short circuit operation to be performed for 5 minutes while the ions are being generated. Thus, the filter 103 placed in the vicinity of the inlet port 101 or the heat exchanger 130 is cleaned by the ions. At the same time, static electricity is eliminated from the dust attached H:ki h\Jntooe\NRPortbl\DCC\KMH\5149900_ I doc-29/M2013 - 16 to the filter 103. [0075] Next, the controller 160 transmits the control signal to the louver motor 111, thereby closing the louver 110 and transmits the control signal to the fan motor 121, thereby stopping the driving of the cross flow fan 120. Next, the controller 160 transmits the control signal to the filter driving device 144, thereby moving the filter 103 and transmits the control signal to the brush motor 145, thereby controlling the brush motor 145 so as to cause the brush 143 to rotate. [0076] When the filter 103 is moved by the filter driving device 144 along the filter guide 141 and the brush 143 is caused to rotate, the brush 143 scrubs a surface of the filter 103 and the dust is removed from the filter 103. The dust removed from the filter 103 is collected inside the duct 142. The duct 142 is connected to an exhaust fan (not shown), and the dust is discharged by an air flow generated by the exhaust fan outside the room targeted for the air conditioning. [0077] After the cleaning of the filter 103 from the front edge portion to the rear edge portion thereof has been finished, the filter driving device 144 is counter-rotated, thereby returning the filter 103 to an original position. [0078] As described above, the air conditioner 1 includes: the cross flow fan 120, the cabinet 100, the filter 103, the filter cleaning device 140, the louver 110, the ion generator 150, the filter cleaning button 220, and the controller 160. [0079] The cabinet 100 houses the cross flow fan 120 and has the inlet port 101 for sucking in air and the outlet port 102 for blowing out the air sent out by the cross flow fan 120. The filter 103 is placed inside the cabinet 100. The filter cleaning device 140 is to clean the filter 103. The louver 110 is to open and close the outlet port 102 and to change the direction of the air sent out by the cross flow fan 120. The ion generator 150 is to generate the ions inside the cabinet 100. The filter cleaning button 220 is to allow a user to select the cleaning of the filter 103. The controller 160 is to control the cross flow fan 120, the filter cleaning device 140, the louver 110, and the ion generator 150. [0080] In a case where it is previously set that after the cooling operation, the heating operation, or the dehumidifying operation, the filter cleaning operation is performed and the cleaning of the filter 103 of the air conditioner I is performed or the cleaning of the filter 103 is selected by the filter cleaning button 220, the controller 160 controls the cross H.\kmiiiimernos en\NRPonbn\DCC\KMH\5119900_ do-29/07/2011 -17 flow fan 120, the filter cleaning device 140, the louver 110, and the ion generator 150 so as to sequentially perform an ion air blowing process in which the ion generator 150 is caused to generate the ions and the louver I10 is controlled such that the air sent out by the cross flow fan 120 passes from the outlet port 102 through the vicinity of the front side of the cabinet 100, is sucked in from the inlet port 101, and passes through the filter 103; and a filter cleaning process in which the filter 103 is cleaned by the filter cleaning device 140. [008 1]First, in the ion air blowing process, the ion generator 150 is caused to generate the ions and the louver 110 is controlled such that the air sent out by the cross flow fan 120 passes from the outlet port 102 through the vicinity of the front side of the cabinet 100 and is sucked in from the inlet port 101, thereby forming the so called short circuit of the air. Thus, in the ion air blowing process, static electricity is eliminated at least from the filter 103 and the dust attached to the filter 103 by the ions generated by the ion generator 150. [0082] Next, in the filter cleaning process, the filter cleaning device 140 is driven and the filter 103 is cleaned. Before the filter cleaning process, the ion air blowing process is performed, thereby eliminating the static electricity from the filter 103 and the dust attached to the filter 103. Therefore, in the filter cleaning process, the filter cleaning device 140 easily removes from the filter 103 the dust attached to the filter 103. [0083] Thus, the air conditioner I capable of effectively cleaning the filter 103 of the air conditioner I can be provided. [0084] Although in the present embodiment, as the open air blowing process, the short circuit operation in which the air passes through the vicinity of the front side of the cabinet 100 and is sucked in from the inlet port 101 is performed, an air duct for the short circuit may be provided inside the cabinet 100 and the short circuit operation may be conducted inside the cabinet 100. In other words, the air duct for the short circuit extending along an inner surface of a front panel of the cabinet 100 from the outlet port 102 to the inlet port 101 is provided. When the cooling or heating operation is performed, this air duct is closed by a damper, and only when the short circuit operation is conducted, the damper is opened and the air including the ions passes from the outlet port 102 through the air duct and is blown out inside the inlet port 101. An air flow in which the air blown out passes through the filter 103 and reaches the outlet port 102 again is formed. As described above, the open air blowing process in which the short circuit operation can be performed without opening H \koh\lncruosen\NRPonlblDCC\KMi\5 1499001 doc-29/07/2013 - 18 the louver 110 may be employed. Alternatively, when the short circuit of the air is formed inside the cabinet 100, in the ion air blowing process, the controller 160 may control the cross flow fan 120 so as to be counter-rotated. When the cross flow fan 120 is counter rotated, the air inside the cabinet 100 flows in a direction toward the inlet port 101, passes through the filter 103, and flows out from the inlet port 101 outside the cabinet 100. The air flowing out from the inlet port 101 passes through the vicinity of the front side of the cabinet 100 and is sucked in from the outlet port 102. The above-mentioned open air blowing process may be employed. [0085] In addition, in the present embodiment, the filter cleaning device 140 is fixed in the cabinet 100 and the filter 103 is moved, thereby cleaning the filter. However, the present invention is also applicable to an air conditioner having a configuration in which the filter cleaning device 140 is moved without moving the filter 103. [0086] The described embodiment is to be considered in all respects only as illustrative and not restrictive. It is intended that the scope of the invention is, therefore, indicated by the appended claims rather than the foregoing description of the embodiment and that all modifications and variations coming within the meaning and equivalency range of the appended claims are embraced within their scope. REFERENCE SIGNS LIST [0087] 1: air conditioner, 100: cabinet, 101: inlet port, 102: outlet port, 110: louver, 120: cross flow fan, 150: ion generator, 160: controller, 210: inside cleaning button. [0088] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as, an acknowledgement or admission or any form of suggestion that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates. [0089] Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.