JP5443315B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner having a function of generating ions for purifying air.

  An air conditioner is equipped with an ion generator that purifies indoor air by charging water molecules in the air with positive ions and negative ions. The air conditioner is provided with an air passage through which heat-exchanged air flows toward the outlet, and the ion generator is provided in the air passage. Ions generated from the ion generator are released into the air passage and are blown out into the room from the outlet by wind.

  The ion generator includes an ion generator that generates ions and an ion detector that detects the generated ions. The ion generator generates a corona discharge by applying a high-voltage AC driving voltage between the discharge electrode and the dielectric electrode, thereby generating positive ions and negative ions.

  When the ion generator is operated for a long time, the discharge electrode is worn out by sputter evaporation accompanying corona discharge. Further, foreign substances such as chemical substances and dust are accumulated on the discharge electrode. In such a case, the discharge becomes unstable and it is inevitable that the amount of ions generated decreases. When the amount of ions generated decreases, the user is notified that the ion generator needs to be maintained. Therefore, it is necessary to determine the presence or absence of ions in the air.

  For example, Patent Document 1 includes an ion detector that includes a collection electrode that collects ions in the air and detects whether or not ions are generated based on a change in potential of the collection electrode when ions are collected. Is disclosed.

JP 2007-114177 A

  The ion detector of the ion generator provided in the air passage of the air conditioner is always exposed to the wind flowing through the air passage. For this reason, dust or the like tends to adhere to the collection electrode of the ion detector. In particular, when cold air is blown out during cooling operation, the ion detector is cooled and dewed. Then, dust and the like are more easily attached to the ion detector. As a result, the ion collection ability of the ion detector may be reduced, and the generation of ions may not be detected correctly.

  In view of the above, the present invention prevents the ion detector from hitting the wind when ions are not detected, prevents adhesion of dew, dust, etc., and can stably detect the presence or absence of ion generation for a long period of time. The purpose is to provide a harmony machine.

  The present invention is directed to an ion generator that generates an ion in an air passage, and an ion detector that detects the generated ion, in which an air passage is formed in a cabinet so that wind that has passed through a heat exchanger is blown out from an outlet. A wind guide portion for guiding the wind in the air passage to the ion detector is provided.

  The air guide unit keeps the ion detector shielded from the air passage when no ions are detected. At the time of ion detection, wind containing ions is guided from the air passage to the ion detector. Therefore, during operation of the air conditioner, since the wind does not hit the ion detector, dust or the like does not adhere to the ion detector.

  A detection chamber communicating with the air passage is formed in the cabinet, and an ion detector is built in the detection chamber. The wind guide portion has an opening / closing body that opens and closes the entrance of the detection chamber, and the opening / closing body opens the entrance when ions are detected. The wind in the air passage is sent from the inlet to the ion detector, and the ion detector can detect ions. The opening / closing body closes the entrance so that the wind does not enter the detection chamber when ions are not detected. Thereby, the ion detector and the air passage are blocked. In addition to preventing dust from entering the detection chamber from the air passage, cold air does not enter the detection chamber, and it is possible to prevent dew condensation on the ion detector.

  The ion generator is provided facing the air passage, and an inlet of the detection chamber is formed on the downstream side in the blowing direction of the ion generator, and the inlet of the detection chamber is located away from the wind passing through the air passage. When ions are not detected, the entrance is closed by the opening / closing body, but the wind generated during the operation of the air conditioner is difficult to directly touch the opening / closing body. Therefore, even if cool air blows, the opening / closing body does not cool, and the temperature in the detection chamber does not drop, so that dew generation can be prevented.

  The opening / closing body opens to the air passage side with the downstream side in the blowing direction as the center of opening / closing. At the time of ion detection, the wind hits the opened opening / closing body, the direction of the wind changes, and the wind flows toward the ion detector. Even if the ion detector is at a position away from the entrance, the wind containing ions reaches the ion detector, and the ion detector can detect the ions.

  Ion detection is performed at the start of operation. Ion detection can be performed when cold air has not yet occurred. Since the ion detector does not touch the cold air, it will not be exposed to the ion detector.

  According to the present invention, when ions are not detected, the wind in the air passage does not hit the ion detector, so that dust can be prevented from adhering to the ion detector. Moreover, since the penetration | invasion of cold air can also be blocked | prevented, it can prevent that dew adheres to an ion detector. As a result, the ion detector can be kept clean, and the presence or absence of ion generation can be detected stably for a long period of time.

The indoor unit of the air conditioner of this invention is shown, (a) The perspective view when a panel is a closed position, (b) The perspective view when it opens upwards, (c) The perspective view when it opens downwards (A) Cross-sectional view of indoor unit when panel is in closed position, (b) Cross-sectional view of indoor unit when opened upward, (c) Cross-sectional view of indoor unit when opened downward Air conditioner control block diagram Sectional drawing which shows schematic structure of the ion generator mounted in the indoor unit Perspective view of the upper panel to which the ion generator is mounted The open / close body is shown, (a) a sectional view in a closed state, (b) a sectional view in an opened state. The figure which shows the display part of a cabinet Cross section of display Time chart for explaining the timing of ion detection and the result of confirmation of the presence or absence of ion generation Flow chart of determination processing for presence / absence of ion generation

  The indoor unit of the air conditioner of this embodiment is shown in FIGS. The indoor unit includes a heat exchanger 1 and an indoor fan 2, which are housed in a cabinet 3. A curved surface is formed from the front surface to the bottom surface of the cabinet 3. A suction port 4 is formed on the upper surface of the cabinet 3, and an outlet 5 is formed on the curved surface.

  An air passage 6 extending from the suction port 4 to the blowout port 5 is formed inside the cabinet 3, and the heat exchanger 1 and the indoor fan 2 are disposed in the air passage 6. A filter 7 is disposed between the suction port 5 and the heat exchanger 1 to remove dust from the indoor air sucked from the suction port 4. A cleaning device 8 for cleaning the filter 7 while moving it is provided.

  A panel 10 that opens and closes the air outlet 5 is provided on the curved surface of the cabinet 3. The panel 10 can be opened both up and down. The panel 10 is formed by a single curved panel and covers the curved surface of the cabinet 3. The width of the panel 10 is the same as the width of the cabinet 3 and is larger than the width of the outlet 5.

  A front panel 11 is formed on the front surface of the cabinet 3 so as to be one step lower from the middle portion of the front surface to the bottom surface. Thereby, a recess is formed in the entire width direction, and the panel 10 is fitted in the recess. An opening is formed in the front panel 11 that forms the recess, and this opening is the outlet 5. Therefore, the panel 10 is positioned in front of the air outlet 5 and covers the air outlet 5 and the front panel 11 around the air outlet 5. At this time, as shown in FIGS. 1 (a) and 2 (a), the panel 10 is in a closed posture.

  The panel 10 opens in either the upper or lower direction by rotating in different directions around the upper and lower axes. As shown in FIGS. 1B and 2B, the panel 10 opens upward around the lower shaft 12 during the cooling operation. When in the upwardly open posture, the panel 10 guides the cool air obliquely upward, and the cool air blows out along the ceiling.

  As shown in FIG. 1C and FIG. 2C, it opens downward around the upper shaft 13 during heating operation. In this downward opening posture, the panel 10 shields the front of the air outlet 5, suppresses the warm air blown forward, and guides the warm air toward the floor surface. In the initial stage of the cooling operation, the panel 10 is in the downward opening posture, the cool air is blown out toward the floor surface, and rapid cooling is performed. The panel 10 is in a closed posture when the operation is stopped, covers the air outlet 5, and is integrated with the cabinet 3.

  The air outlet 5 is provided with a wind direction plate 14 and an auxiliary louver (not shown). The wind direction plate 14 changes the direction of the wind in the left-right direction by changing the angle in the left-right direction. The auxiliary louver changes the vertical direction according to the posture of the panel 10 and changes the vertical direction while rectifying the blown wind.

  In the air conditioner, an outdoor unit (not shown) is installed outside the indoor unit. The outdoor unit includes a compressor, a heat exchanger, a four-way valve, an outdoor fan, and the like, and a refrigeration cycle 15 is formed by these and the indoor heat exchanger 1. And as shown in FIG. 3, the control apparatus 16 which controls the refrigerating cycle 15 is provided in an indoor unit. The control device 16 composed of a microcomputer controls the refrigeration cycle 15 based on the user's instruction and detection signals of various sensors 17 such as temperature sensors for detecting room temperature and outside air temperature, and performs air conditioning operation. At this time, the control device 16 controls the opening and closing of the panel 10 according to the air conditioning operation. Further, the control device 16 cleans the filter 7 by controlling the cleaning device 8 periodically or in accordance with an instruction from the user.

  And this air conditioner is equipped with the ion generator which generate | occur | produces ion in order to clean indoor air. The ion generator includes an ion generator 20 that generates ions and an ion detector 21 that detects the generated ions. The ion generator 20 and the ion detector 21 are provided in the air passage 6.

  The ion generator 20 has a discharge electrode and an induction electrode, and a housing case that houses these. The discharge electrode is a needle electrode, and the induction electrode is formed in an annular shape and surrounds the discharge electrode at a certain distance from the discharge electrode. The discharge electrode and the induction electrode are provided in a pair on the left and right, and are arranged in the left-right direction orthogonal to the blowing direction.

  A high voltage generation circuit 25 for applying a high voltage to each discharge electrode is provided, and the high voltage generation circuit 25 is connected to the control device 16. A drive signal is input from the control device 16 to the high voltage generation circuit 25 and a DC power supply or an AC power supply is supplied. The discharge electrode, the induction electrode, and the high voltage generation circuit 25 are unitized and are detachably mounted in the housing case. Two through holes are formed in the front surface of the housing case, and the discharge electrode faces the through hole. Positive ions are generated from one discharge electrode, and negative ions are generated from the other discharge electrode.

  As shown in FIG. 4, the ion generator 20 is disposed in the air passage 6 in the vicinity of the air outlet 5. The upper wall of the air passage 6 is formed by the upper panel 30. As shown in FIG. 5, the upper panel 30 is long in the left-right direction and is detachably attached to the cabinet 3.

  The rear wall 31 facing the air passage 6 of the upper panel 30 is a horizontal plane that is slightly inclined downward, and the front wall 32 that is located downstream of the rear wall 31 is an inclined surface that extends obliquely upward. . The front end of the front wall 32 of the upper panel 30 is connected to the front panel 11.

  The ion generator 20 is located at the center of the air passage 6 in the left-right direction. A recess 33 is formed at the center of the rear wall 31 of the upper panel 30 in the left-right direction, and a storage case is detachably attached to the recess 33. The ion generator 20 faces the air passage 6, and ions generated from the ion generator 20 are carried by the wind flowing through the air passage 6 and blown out from the blowout port 5 into the room.

  The ion detector 21 includes a collector that collects the generated ions and an ion detection circuit 35 that outputs a detection signal corresponding to the collected ions to the control device 16. The collector having conductivity is a collector electrode provided on the front surface of the sensor substrate, and is formed of a metal film made of copper tape or the like. An ion detection circuit 31 is mounted on the back surface of the sensor substrate. The collector and the ion detection circuit 35 are electrically connected within the sensor substrate, and the ion detection circuit 35 is connected to the control device 16 via a lead wire.

  The ion detection circuit 35 is a known one, and as described in, for example, Japanese Patent Application Laid-Open No. 2007-114177, the ion detection circuit 35 includes a rectifying diode, a p-MOS type FET, and the like. The ion detector 21 detects either positive ions or negative ions. When the collector collects one of the generated ions, the potential of the collector increases. The potential increases according to the amount of ions collected. The ion detection circuit 31 performs A / D conversion on the output voltage corresponding to this potential and outputs the result to the control device 16.

  The ion detector 21 is disposed downstream of the ion generator 20 in the air blowing direction, and is located away from the air passage 6. The ion detector 21 detects negative ions. Among the discharge electrodes arranged in the left-right direction, the ion detector 21 is provided downstream of the discharge electrode that generates negative ions.

  A detection chamber 40 for mounting the ion detector 21 is provided in the cabinet 3. The detection chamber 40 is formed in a space between the front wall 32 of the upper panel 30 and the inner panel 41 of the cabinet 3. An inlet 42 of the detection chamber 40 is formed on the front wall 32 of the upper panel 30, and the inlet 42 is located downstream of the ion generator 20. An ion detector 21 is disposed on the back side of the detection chamber 40. The ion detector 21 is located away from the inlet 42. A support 43 is formed on the upper panel 30 so as to surround the sensor substrate of the ion detector 21, and the sensor substrate is held on the support 43 by the substrate holder 44. A grill 45 is provided in front of the collector of the ion detector 21 so that foreign substances such as fingers do not touch.

  By the way, the ion detector 21 is located on the far side of the detection chamber 40 away from the air passage 6, and the inlet 42 of the detection chamber 40 is located away from the wind passing through the air passage 6. The ion detector 21 is not directly exposed to the wind of the air passage 6. Therefore, an air guide part for guiding the wind of the air passage 6 to the ion detector 21 for ion detection is provided. The air guide unit includes an opening / closing body 50 that opens and closes the inlet 42 of the detection chamber 40, and a drive unit that opens and closes the opening / closing body 50.

  As shown in FIGS. 5 and 6, the opening / closing body 50 is formed of a flat plate provided so as to be openable / closable with respect to the inlet 42, and closes the inlet 42 against the air passage 6 by coming into contact with the peripheral edge of the inlet 42. A heat insulating material is provided on the inner surface of the opening / closing body 50 on the detection chamber 40 side. Reference numeral 51 denotes a reinforcing rib.

  The opening / closing body 50 opens to the air passage 6 side with the downstream side in the blowing direction as the center of opening / closing. The opened opening / closing body 50 hits the wind in the air passage 6 and changes the direction of the wind. The opening / closing body 50 opens the entrance 42 so that the wind in the air passage 6 enters the detection chamber 40 when ions are detected, and closes the entrance 42 so that no wind enters the detection chamber 40 when ions are not detected. When the opening / closing body 50 is closed, the ion detector 21 is shielded from the air passage 6.

  The drive unit includes an opening / closing motor 52, and the opening / closing motor 52 is driven and controlled by the control device 16. The rotational force of the opening / closing motor 52 is transmitted to the opening / closing body 50, and the opening / closing body 50 opens and closes. An arm 53 is formed integrally with the opening / closing body 50. The arm 53 is provided on both the left and right sides, and the arm 53 is rotatably supported by a support shaft 54 provided on the support body 43. The support shaft 54 is located downstream of the inlet 42. The opening / closing body 50 rotates around the support shaft 54, and the upstream side of the opening / closing body 50 moves relative to the inlet 42.

  The opening / closing motor 52 is provided on one side of the air outlet 5 in the left-right direction. A rotary shaft 55 detachably connected to the opening / closing motor 52 is provided in the left-right direction from the side toward the center. The rotating shaft 55 is rotatably held by a holding stand 56 formed on the upper panel 30. One end of the link 57 is detachably attached to the tip of the rotating shaft 55, and the other end of the link 57 is connected to the arm 53. A long hole 58 is formed in the link 57, and a pin 59 of the arm 53 is slidably fitted into the long hole 58.

  When the opening / closing body 50 is closed and the opening / closing motor 52 is driven, the rotating shaft 55 rotates and the link 57 rotates. As the link 57 rotates, the arm 53 rotates around the support shaft 54 while the pin 59 moves through the long hole 58. The arm 53 protrudes from the inlet 42 toward the air passage 6 and the opening / closing body 50 opens. At this time, the control device 16 drives the opening / closing motor 52 for a predetermined time. The predetermined time is set to a time until the opening / closing body 50 is opened. When closing the opening / closing body 50, the opening / closing motor 52 is driven to rotate in the reverse direction for a fixed time. An opening / closing sensor such as a position sensor that detects opening / closing of the opening / closing body 50 may be provided. Based on the detection of the open / close sensor, the control device 16 stops the open / close motor 52.

  The control device 16 activates the ion generator 20 and the ion detector 21 at the time of ion detection, and drives the opening / closing motor 52 to open the opening / closing body 50. When the opening / closing body 50 is opened, the inlet 42 of the detection chamber 40 is opened. The opening / closing body 50 is in a state of protruding from the upper panel 30 to the air passage 6. The indoor fan 2 is driven, and the wind passing through the air passage 6 strikes the opening / closing body 50, the flow direction is changed, and the air is guided to the detection chamber 40. Ions generated from the ion generator 20 are carried by the wind, and air containing the ions flows into the detection chamber 40. The collector of the ion detector 21 collects negative ions, and the ion detection circuit 35 outputs an output voltage corresponding to the amount of ions to the control device 16.

  The timing of ion detection is synchronized with the start of operation of the air conditioner. When the air conditioning operation is started, the ion generator 20 is activated at the same time, and detection of the generated ions is started. Ion detection is performed only for a predetermined time, for example, 10 seconds. When the ion detection is finished, the control device 16 drives the opening / closing motor 52 to close the opened opening / closing body 50.

  When no ions are detected, the opening / closing body 50 closes the inlet 42 of the detection chamber 40. When the cooling / heating operation is performed, wind flows through the air passage 6, but no wind enters the detection chamber 40. Thereby, it is possible to prevent dust from entering the detection chamber 40 and to prevent dust from adhering to the ion detector 21. Further, since the entrance 42 of the detection chamber 40 is located away from the wind passing through the air passage 6, the opportunity for the opening / closing body 50 to directly contact the cold air is reduced. Moreover, it becomes difficult for cold air to enter the detection chamber 40, and a decrease in the temperature of the detection chamber 40 can be suppressed. Thereby, dew condensation to the ion detector 21 can be prevented and dust can be prevented from adhering through the dew. Further, by performing ion detection at the start of operation, since the evaporator is not sufficiently cooled, no cool air is yet generated, no cool air enters the detection chamber 40, and no dew generation occurs. As described above, dew, dust, etc. do not adhere to the ion detector 21, and ions can be detected stably for a long period of time.

  And the control apparatus 16 performs the determination process which determines the presence or absence of generation | occurrence | production of ion. That is, the control device 16 functions as a determination unit of an ion generation device that determines whether or not ions are generated based on the output of the ion detector 21.

  In an environment where wind is blown into the air passage 6 during operation and ions are carried by the wind, the controller 16 determines whether or not ions are generated based on the output of the ion detector 21 during a predetermined period. A first determination is made regarding the presence or absence of generation, and when the first determination that no ions are generated is made a plurality of times, it is finally determined that no ions are generated. The control device 16 notifies the final determination result by display or the like.

  As shown in FIGS. 7 and 8, the front panel 11 of the cabinet 3 is provided with a display unit 60 that notifies by lighting. The display unit 60 includes an LED 61, and the LED 61 is mounted in the cabinet 3. In FIG. 8, 62 is a guide for guiding light forward, and 63 is a light emitting member that receives light from the LED 61 and shines. When it is determined that no ions are generated, the control device 16 drives the LED 61 to light the display unit 60. When it is determined that ions are generated, the display unit 60 is not lit.

  In the determination of the presence or absence of ions, the control device 16 determines that ions are generated when the output value corresponding to the output voltage from the ion detector 21 is equal to or greater than a specified value, and determines that no ions are generated when the output value is less than the specified value. To do. Alternatively, the difference between the maximum value and the minimum value of the output value during ion detection is calculated, and when this difference is greater than or equal to a threshold value, it is determined that ions are generated, and when this difference is less than the threshold value, it is determined that no ions are generated. To do.

  As shown in FIG. 9, ion detection is performed at the start of operation of the air conditioner. For this reason, the ion detector 21 detects the presence or absence of ions each time the air conditioning operation is started during a predetermined period. One day is set as the predetermined period. Therefore, ion detection is performed once or more during a predetermined period. Each time ion detection is performed, the control device 16 confirms whether or not ions are generated. When the predetermined period has elapsed, the control device 16 makes a first determination based on the confirmation result. As shown in FIG. 9C, when no cooling / heating operation is performed for a predetermined period, ion detection is not performed, and the control device 16 does not determine whether or not ions are generated.

  In the first determination, the control device 16 confirms whether or not ions are generated for each output from the ion detector 21. When the final confirmation result during the predetermined period is that ion generation is present, the control device 16 performs a first determination that ion generation is present. For example, when all of the plurality of confirmation results have ion generation during a predetermined period, or when it is confirmed that no ion generation has occurred once or more during a predetermined period, the control device 16 Judge that ions are generated.

  In other cases, the control device 16 makes a first determination as an ion generation error indicating that ions are not generated. For example, as shown in FIG. 9A, if all of the plurality of confirmation results indicate no ion generation during a predetermined period, an ion generation error is determined. In addition, as shown in FIG. 9B, during the predetermined period, even if it is confirmed that ions are generated once or more, if the final confirmation result is that no ions are generated, an ion generation error is generated.

  Then, the control device 16 finally determines whether or not ions are generated based on the plurality of first determinations. That is, when it is determined in the first determination that no ions are generated, the control device 16 continues to detect ions for a predetermined period. When the first determination that no ions are generated is made a plurality of times in succession, the control device 16 makes a final determination that no ions are generated. If the first determination is that ions are generated, the control device 16 makes a final determination that ions are generated. Thereafter, the control device 16 continues to perform ion detection for a predetermined period and similarly performs the first determination.

  A specific determination processing operation will be described. As shown in FIG. 10, when the power of the air conditioner is on, the control device 16 is in a standby state for determination processing. When any one of the air conditioning operation, the dry operation, and the air blowing operation is started (S1), the indoor fan 2 is driven and the wind flows through the air passage 6. At the same time, the opening / closing body 50 is opened, and the ion generator 20 and the ion detector 21 are operated. The wind in the air passage 6 is guided into the detection chamber 40, and the ion detector 21 detects ions (S2). When a certain time, for example, 10 seconds elapses from the start of operation, the opening / closing body 50 is closed, and ion detection by the ion detector 21 is completed. After this, the ion generator 20 continues to operate.

  The control device 16 confirms whether or not there is an ion generation error based on the output of the ion detector 21 (S3). The control device 16 stores an ion generation error when no ions are generated. For example, the error flag is set to n = 1. Then, the control device 16 checks whether a predetermined period, here, 24 hours has elapsed (S4). It is checked whether the mask timer = 0. The mask timer counts 24 hours, and when the mask timer reaches 0, it means that 24 hours have elapsed since the first operation. In addition, you may count 24 hours from midnight.

  When 24 hours have not elapsed, once the operation is stopped and the next operation is started, ion detection is performed, and the control device 16 confirms whether or not ions are generated again. In this way, the presence or absence of ion generation is confirmed a plurality of times during a predetermined period.

  In S3, when it is confirmed that ion generation is present, the control device 16 sets the error flag to n = 0 and resets the error counter to 0 (S8). And the control apparatus 16 checks whether 24 hours have passed (S9). When 24 hours have not elapsed, the control device 16 confirms whether or not ions are generated again when the next operation is started.

  In S4 or S9, the control device 16 makes a first determination after confirming that 24 hours have elapsed. In this case, since the error flag n = 1, it is determined that an ion generation error has occurred, and the error counter N is incremented by 1 (S5). The error counter represents the count number of ion generation errors.

  The control device 16 checks whether the error counter has reached the specified number (S6). The specified number of times is set to 7 times. When the error counter reaches N = 7, the control device 16 makes a final determination that no ions are generated. And the control apparatus 16 lights the display part 60, and alert | reports that it is an ion generation | occurrence | production error (S7). When the error counter has not reached seven times, the control device 16 does not make a final determination and does not turn on the display unit 60. No error is displayed (S10). Thereafter, when the operation is started, the control device 16 executes the determination process again.

  When the ion generation error is notified, the user cleans the ion generator 20 with an attached brush. Alternatively, replace the unit. Thereby, the ion generator can generate ions and can provide a comfortable environment by ions.

  In this way, the final determination is made based on a plurality of determinations in a predetermined period, without determining whether or not ions are generated by only one ion detection. Therefore, it is possible to eliminate determination errors due to erroneous detection of ions, and it is possible to accurately determine whether or not ions are generated.

In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. A panel that opens and closes instead of the opening and closing motor is used as the air guide section. Vertical ribs are provided on the panel. When the panel is closed, the vertical rib contacts the opening / closing body. The opening / closing body is pushed and opened, and the entrance of the detection chamber is opened. That is, the inlet is always open when the panel is in the closed state. When the panel is opened, the vertical rib is separated from the opening / closing body, and the opening / closing body is closed by the urging force of the spring to close the inlet.

  Ion detection may be performed at the end of operation. Even after the operation is finished, the indoor fan is driven for a while and the ion generator continues to operate. During this time, the ion detector detects ions. Further, the ion generator is set to operate simultaneously with the start of the operation of the air conditioner. However, when the ion generation operation can be turned on and off, no ions are generated when the ion generation operation is off. Therefore, even when the ion generation operation is turned off, the control device forcibly operates the ion generation device for a predetermined time when the operation of the air conditioner is started. Thereby, it is possible to always determine whether or not ions are generated.

DESCRIPTION OF SYMBOLS 3 Cabinet 5 Outlet 6 Air passage 16 Control apparatus 20 Ion generator 21 Ion detector 35 Ion detection circuit 40 Detection chamber 42 Inlet 50 Opening and closing body 52 Opening and closing motor

Claims (5)

An air passage is formed in the cabinet so that the wind that has passed through the heat exchanger is blown out from the outlet, and an ion generator that generates ions in the air passage, an ion detector that detects the generated ions, and an air passage An air conditioner provided with a wind guide section for guiding wind to the ion detector, wherein the wind guide section shields the ion detector from the air passage when ions are not detected. A detection chamber communicating with the air passage is formed in the cabinet, an ion detector is built in the detection chamber, the air guide has an opening / closing body that opens and closes the entrance of the detection chamber, and the opening / closing body is an entrance when detecting ions. 2. The air conditioner according to claim 1, wherein the air in the air passage is sent to the ion detector, and the opening / closing body closes the inlet so that the air does not enter the detection chamber when no ions are detected. . The ion generator is provided facing the air passage, and an inlet of the detection chamber is formed on the downstream side in the blowing direction of the ion generator, and the inlet of the detection chamber is located away from the wind passing through the air passage. The air conditioner according to claim 2. 4. The air conditioner according to claim 2, wherein the opening / closing body opens to the air passage side with the downstream side in the blowing direction as the center of opening / closing. The air conditioner according to any one of claims 1 to 4, wherein ion detection is performed at the start of operation.

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