JP5517877B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner equipped with a sound sensor that detects indoor sound.

  An air conditioner circulates indoor air through a heat exchanger, adjusts it by heating, cooling, dehumidifying functions, and the like, and blows the air into the room to air condition the room. In recent years, there has been a strong demand for energy-saving operation for air conditioners from the viewpoint of preventing global warming, and various sensors have been introduced that incorporate recent advances in sensor technology. Various methods of energy saving operation have been proposed in which a sound machine is provided with a sound sensor to improve operability and consider comfort. Patent documents 1-5 are known as this kind of conventional technology.

  Patent Document 1 discloses an indoor unit having an audio response function corresponding to an infrared control signal, an infrared control signal input unit including an infrared receiver, an audio signal input unit including a microphone, and an infrared control signal input unit. And a voice response signal level judging means for creating a voice response signal and volume level of the air conditioner by a signal of the voice signal input means, and a voice response output means comprising an amplifier and a speaker, and according to the signal level of the voice signal input means A control device for an air conditioner is described that makes it possible to distinguish a voice response from an air conditioner even if there is noise around the user, including television and audio sounds, with a sound response at a high volume.

  In Patent Document 2, a voice recognition unit provided in an indoor unit of an air conditioner includes a microphone for inputting voice from an operator, and the input voice signal is converted into a digital signal and input to a voice recognition DSP. Voice recognition processing is performed by the voice recognition DSP, and a remote control signal corresponding to the voice-recognized command is output. The output remote control signal is received by the receiving circuit of the indoor unit, and air conditioning control is performed according to the received remote control signal. This describes an air conditioner that can be easily operated by voice without complicated operations with a remote controller.

  In Patent Document 3, the correction sound generating means is controlled so that the synthesized sound of the correction sound and the actual blower operation sound has substantially the same noise level as the blower operation sound immediately before the start of the defrosting operation. As a result, the operation of the indoor unit for the heat pump air conditioner that eliminates the unpleasant feeling caused by the refrigerant flow noise during the defrost cycle operation without fluctuation in the noise level between the steady heating operation and the defrost cycle operation A sound control method and a control apparatus are described.

  Patent Document 4 detects the operation sound of an air conditioner with a microphone, compares the operation sound with a preset reference operation sound, generates a correction signal, outputs the correction signal to a speaker, and operates from the speaker. The correction sound is radiated so that the synthesized sound with the sound becomes the reference operation sound. In this way, when the operation sound of the air conditioner is flowed as background noise in an office or the like, the deterioration of the sound quality of the operation sound and the fluctuation of the magnitude are prevented, and a predetermined operation sound with good sound quality is generated. An operation sound control method and control device for an air conditioner that stably and effectively ensures improvement in work efficiency due to background noise by flowing constantly is described.

  Patent Document 5 adjusts the phase and level of sound source data approximating the noise from the noise source stored in advance in the sound source data part, synthesizes it with the noise from the noise source, monitors the synthesized sound by the control unit, Always minimize. This describes a silencer that realizes a significant noise reduction in a device having a movable part.

JP 2008-124204 A JP 2000-161746 A Japanese Patent Application Laid-Open No. 10-082544 Japanese Patent Application Laid-Open No. 06-043884 JP 02-115510 A

  When mounting the sound sensor, the mounting position must be such that the sound to be detected can be detected as accurately as possible.

  In Patent Document 1, the position where the microphone is attached is simply written as “internal unit built-in”, and the specific position is not shown, but the state in which the microphone is conceptually shown is merely shown in the figure. is there.

  Patent Document 2 describes that the microphone for detecting the voice of the operator is exposed and provided. However, the position of the microphone is only shown as an example in which the microphone is arranged on the right side of the air conditioner. There is no general mention.

  In Patent Document 3, there is a description that an operation sound detection means is provided on the upper wall of the blowout air path toward the fan in order to detect the operation sound of the fan. However, reference is made to a means for detecting the sound in the room. There is no.

  In Patent Document 4, there is a description about a microphone mounting position for detecting an operating sound of an air conditioner, but there is no description about a means for detecting a room sound.

  In Patent Document 5, only the microphone mounting position for detecting the synthesized sound of the noise generated from the heat exchanger, the fan, the wind tunnel and the like and the sound of the speaker is illustrated in the figure, and attached to the room sound detection means. There is no description.

  The problem to be solved by the present invention is to provide an air conditioner with a sound sensor that saves power while considering comfort.

The problem to be solved by the present invention is that the sound sensor is located in the axial direction of the cross flow fan between the lower end of the upper wall of the blowing air passage and the suction opening in the axial direction of the cross flow fan. A communication hole that communicates, a filter that is located at the suction port, an infrared sensor that detects the amount of movement of the occupant or the amount of radiation from the floor or wall of the room, a room temperature setting unit, and a control that controls the operation And an activity amount determination unit that determines the amount of activity of the occupant according to the detection result of the infrared sensor and the detection result of the sound sensor, and the activity amount determination unit displays the detection result of the infrared sensor Based on the detection results, the amount of activity of the occupants is determined by dividing into multiple stages, and the target value determined based on the set temperature based on the amount of activity of the occupants determined by the activity amount determination unit Is achieved by changing

  The air conditioner according to claim 2 is the air conditioner according to claim 1, wherein an infrared sensor that detects the amount of movement of the occupant or the amount of radiation from the floor or wall of the room, a room temperature setting unit, A control unit that controls driving; and an activity amount determination unit that determines an activity amount of a resident in accordance with a detection result of the infrared sensor and a detection result of the sound sensor, and is determined by the activity amount determination unit. The target value determined based on the set temperature is changed based on the activity determination amount of the occupant.

  The air conditioner according to claim 3 is an air conditioner having a sound sensor, and is arranged in the axial direction of the cross-flow fan inside the both ends of the outlet and between the lowermost end of the outlet air channel upper wall and the inlet. A communication hole that communicates the sound sensor with the room, a pyroelectric infrared sensor that detects the amount of movement of the occupant or a thermopile that detects the amount of radiation from the floor or wall of the room, and a room temperature setting unit. A control unit that controls driving, and an activity amount determination unit that determines an activity amount of a resident in accordance with the detection result of the pyroelectric infrared sensor or the detection result of the thermopile and the detection result of the sound sensor. The target value determined based on the set temperature is changed based on the activity determination amount of the occupant determined by the activity amount determination unit.

  The air conditioner according to claim 4 is the air conditioner according to claim 2 or 3, wherein a sound source type determination threshold value for determining a sound source type is provided based on a detection result of the sound sensor, and the air conditioner The determination threshold is set according to the detection result (initial value) of the sound sensor during the reference environmental sound measurement period in which the sound sensor is operated or stopped in a room where the sound is installed and the reference environmental sound is measured by the sound sensor. The activity amount determination unit determines a type of a sound source according to the determination threshold corrected by the threshold correction unit, and according to the determined type of the sound source and the detection result of the infrared sensor. This is to determine the amount of activity of people in the room.

  The air conditioner according to claim 5 is the air conditioner according to claim 2 or 3, wherein the sound sensor and pyroelectric infrared sensor or thermopile are mounted on, mounted on, or mounted on the same substrate, sensor base, or case, or It is what is stored.

  An air conditioner according to a sixth aspect of the present invention is the air conditioner according to the sixth aspect, wherein the sound sensor and the pyroelectric infrared sensor or a thermopile are arranged across the center of the outlet in the crossflow fan axial direction. is there.

  The air conditioner according to claim 7 is the air conditioner according to claim 5, wherein the maximum value of the mutual distance between the sound sensor and the pyroelectric infrared sensor or the center portion of the thermopile is defined as the axial direction of the crossflow fan. When expressed in three-dimensional rectangular coordinates as the X coordinate axis, the value of the X coordinate is larger than the values of the other coordinate axes.

  An air conditioner according to an eighth aspect of the present invention is the air conditioner according to the second or third aspect, further comprising a shielding member that makes the sound sensor, pyroelectric infrared sensor, or thermopile difficult to see.

  The air conditioner according to a ninth aspect is the air conditioner according to the eighth aspect, wherein the shaft of the cross-flow fan and the longitudinal direction of the outlet are arranged in a horizontal direction, and the shielding member is interlocked with the vertical wind direction plate. And move.

  An air conditioner according to a tenth aspect of the present invention is the air conditioner according to the ninth aspect, wherein the shielding member is constituted by a part of a vertical wind direction plate.

  The air conditioner according to claim 11 is the air conditioner according to claim 8, wherein the sound sensor, pyroelectric infrared sensor or thermopile can be seen from the room when the sound sensor, pyroelectric infrared sensor or thermopile is not used. It makes things difficult.

  An air conditioner according to a twelfth aspect of the present invention is the air conditioner according to the tenth aspect, wherein the upper and lower wind direction plates are composed of a rear upper and lower wind direction plate and a front upper and lower wind direction plate serving as the shielding member. A transparent part and an opaque part are formed.

  The air conditioner according to claim 13 is the air conditioner according to claim 12, wherein when the operation is stopped, the sound sensor, the pyroelectric infrared sensor or the thermopile is made invisible in the opaque part, and the internal display part is in the transparent part. It covers.

  According to the first aspect of the present invention, it is difficult to be influenced by the blowing sound, the indoor sound can be detected correctly, and the surplus of the cross current fan is not easily generated. It is possible to provide an air conditioner having a configuration suitable for an application in which the activity of a room person is estimated by the sound in the room and the operation is controlled.

  According to the second and third aspects, the amount of activity of the occupant is precisely estimated from the detected sound information and the information of the infrared sensor, and power is saved while taking comfort into consideration.

  According to the third aspect, it is difficult to be influenced by the blowing sound, and the indoor sound can be detected correctly.

  According to the fourth aspect of the present invention, power is saved by appropriately grasping the indoor situation by appropriate correction according to the environmental noise in the room.

  According to claims 5 and 10, it is suitable for resource saving and the cost can be reduced.

  According to the fifth aspect, the state of the detection area can be grasped more accurately, and the room is appropriately air conditioned.

  According to the sixth aspect, necessary information in the room is efficiently collected with a small number of sensors and appropriately controlled.

  According to the seventh aspect, the empty space can be used effectively and the enlargement of the housing is suppressed.

  According to the eighth, ninth, eleventh and thirteenth aspects, the interior atmosphere is not disturbed when not in use.

  According to the twelfth aspect, the feeling of pressure when the front vertical wind direction plate is movable is reduced.

  According to the thirteenth aspect, the operating state can be correctly confirmed even when the wind direction plate is closed.

The block diagram of an air conditioner. Sectional drawing at the time of the driving | operation stop of the indoor unit of an air conditioner. The front view at the time of operation stop of an indoor unit. The front view at the time of the driving | running | working of an indoor unit. The bottom view at the time of driving | running | working of an indoor unit. Sectional drawing at the time of heating operation of an indoor unit. Sectional drawing at the time of air_conditionaing | cooling operation of an indoor unit. The perspective view of the sound sensor attachment part of an indoor unit. The perspective view of the pyroelectric infrared sensor attachment part of an indoor unit. The perspective view of the thermopile attachment part of an indoor unit. The perspective view of the sensor module of an indoor unit. The top view of an indoor unit. The filter cleaning mechanism part perspective view of an indoor unit. Explanatory drawing of sweeping operation of the collected dust of a cleaning mechanism. Sound sensor attachment part sectional drawing when the front part up-and-down wind direction board of an indoor unit is closed. Detailed view of the front vertical wind direction plate. The sensor attachment part front view when a front part up-and-down wind direction board is opened. The sensor attachment part front view when the front part up-and-down wind direction board is closed. Relationship between activity content and activity amount. The control part block diagram of the indoor unit. Example 1 of frequency analysis of room sound. Example 2 of frequency analysis of room sound. Sound source determination block diagram. FIG. FIG. Correction explanatory drawing by ambient sound. Reaction detection classification determination explanatory drawing. Combination activity amount judgment diagram. Radiation amount determination explanatory drawing.

  The details of the present invention will be described below by taking a wall-mounted air conditioner as an example.

  First, the overall configuration will be described with reference to FIGS. FIG. 1 is a configuration diagram of an air conditioner according to an embodiment. FIG. 2 is a cross-sectional view when the operation of the indoor unit of the air conditioner is stopped. FIG. 3 is a front view when the operation of the indoor unit is stopped.

  The air conditioner connects the indoor unit 2 and the outdoor unit 6 with a connection pipe 8 to air-condition the room. In the indoor unit 2, an indoor heat exchanger 33 is placed at the center of the housing base 21, a cross-flow fan type blower cross-flow fan 311 is disposed under the indoor heat exchanger 33, and a dew tray 35 is attached. A front panel 25 is attached to the front surface of the decorative frame 23. The decorative frame 23 is provided with an air inlet 27 for sucking room air and an air outlet 29 for blowing air in which temperature and humidity are harmonized.

  The blown airflow from the blower crossflow fan 311 is sent to a blowout air passage 290 having a width substantially equal to the length of the blower crossflow fan 311, and the left and right airflow direction plates 295 arranged in the middle of the blowout air passage 290 deflect the left and right directions of the airflow. Further, the front vertical airflow direction plate 291 and the rear vertical airflow direction plate 292 arranged at the air outlet 29 can deflect the airflow in the vertical direction and blow it out indoors.

  The housing base 21 includes basic internal structures such as a blower cross-flow fan 311, a filter 231, an indoor heat exchanger 33, a dew tray 35, a front vertical wind direction plate 291, a rear vertical wind direction plate 292, a left and right wind direction plate 295, and the like. Is installed. And these basic internal structures are included in the housing | casing 20 which consists of the housing | casing base 21, the decorative frame 23, and the front panel 25, and comprise the indoor unit 2. FIG. Further, a display unit 397 for displaying the driving situation is disposed below the front panel 25, and a transmission / reception unit 396 for transmitting and receiving an infrared signal with a separate remote controller 5 is disposed on the side of the rear vertical wind direction plate 292. ing.

  The movable panel 251 constitutes a part of the front panel 25 and is rotated by a drive motor with a rotation shaft provided at the lower portion of the front panel 25 as a fulcrum, and opens the front air suction part 270 ′ during operation of the air conditioner. It is configured as follows. Thus, during operation, room air is sucked into the indoor unit 2 from the air suction part 270 ′ in addition to the air suction part 270.

  An air outlet 29 formed on the lower surface of the decorative frame 23 is disposed below the front panel 25 and communicates with the rear outlet air passage 290. The front up / down wind direction plate 291 and the rear up / down wind direction plate 292 constitute a lower front surface and a bottom surface of the indoor unit 2 in a closed state, substantially concealing the blowing air passage 290. These front up / down wind direction plates 291 and rear up / down wind direction plates 292 have angles required for the operation of the air conditioner by the drive motor in response to an instruction from the remote controller 5 with pivots provided at both ends as fulcrums. It rotates to open the air outlet 29 and keep it in that state.

  An auxiliary wind direction plate storage portion 290b that expands upward is provided downstream of the blowout air passage 290, and the auxiliary wind direction plate 291d is stored when the front vertical wind direction plate 291 is closed, such as when operation is stopped.

  The indoor unit 2 includes a control unit 10 (not shown) inside, and the control unit 10 is provided with a microcomputer. This microcomputer receives signals from various sensors such as a room temperature sensor, a room humidity sensor, a sound sensor, a pyroelectric infrared sensor, and a radiation sensor, and also transmits and receives infrared signals to and from the remote controller 5 through a transmission / reception unit 396. . Based on these signals, the microcomputer controls the blower cross-flow fan 311, the movable panel drive motor, the up / down wind direction plate drive motor, the left / right wind direction plate drive motor, and the like, and also controls communication with the outdoor unit 6, and the indoor unit 2 To control.

  When the operation of the air conditioner is stopped, as shown in FIG. 2, the movable panel 251 closes the front air suction portion 230 ′, and the front vertical wind direction plate 291 and the rear vertical wind direction plate 292 open the air outlet 29. Controlled to close. The left and right wind direction plates 295 are rotated by a drive motor with a rotation shaft provided at the lower end portion as a fulcrum, and are rotated in accordance with an instruction from the remote controller 5 and held in that state. As a result, the blown air is blown out in the left and right desired directions. By instructing from the remote controller 5, the front vertical wind direction plate 291, the rear vertical wind direction plate 292, and the left and right wind direction plate 295 are periodically oscillated during the operation of the air conditioner, and periodically blown over a wide range in the room. Air can also be sent.

  The dew tray 35 is disposed below the lower ends of the front and rear sides of the indoor heat exchanger 33, and is provided to receive condensed water generated in the indoor heat exchanger 33 during cooling operation or dehumidifying operation. The condensed water received and collected is discharged to the outside through the drain pipe 37.

  In the state where the front vertical airflow direction plate 291 is closed, the front vertical airflow direction plate 291 is provided with an internal makeup so as to hide the internal decorative surface 24 formed between the air suction portion 270 ′ and the air outlet 29. Located in front of the surface 24.

  Reference numeral 17 denotes a pyroelectric infrared sensor, reference numeral 18 denotes a radiation sensor using a thermopile, and reference numeral 19 denotes a sound sensor using a microphone or the like, both of which are provided on the front vertical wind direction plate 291 above the air outlet 29. It is mounted on the back of the inner interior decorative surface 24.

  By providing the auxiliary wind direction plate storage portion 290b that extends from the upper wall 290a downstream of the blow air channel 290 and expands upward, the front vertical wind direction plate 291 is slightly opened when performing extremely weak cooling or heating operation. It is turned upward, and the rear up-and-down wind direction plate 292 is appropriately closed, for example, and the blower cross-flow fan 311 is operated at an appropriate rotation speed so that extremely weak wind is caused to flow through this portion. It can be weakly cooled or heated by passing through the auxiliary wind direction plate storage 290b as a weak wind and softly diffusing into the room.

  Furthermore, by using the auxiliary wind direction plate storage unit 290b, the short circuit operation in which the blown wind is immediately sucked from the air suction unit 270 ′, the drying operation of the heat exchanger, the deodorizing operation inside the air conditioner, etc. It is also possible to perform the maintenance operation of the air conditioner.

  Further, when the air conditioner is stopped, the auxiliary wind direction plate 291d and the arm 291e are stored in the auxiliary wind direction plate storage portion 290b, so that the design can be made clean with no extra unevenness, and the interior atmosphere is not disturbed. .

  Next, the arrangement of the sound sensor, pyroelectric infrared sensor, and radiation sensor will be described with reference to FIGS.

  First, the sound sensor will be described with reference to FIGS. FIG. 4 is a front view of the indoor unit during operation. FIG. 5 is a bottom view of the indoor unit during operation. FIG. 6 is a cross-sectional view of the indoor unit during heating operation. FIG. 7 is a cross-sectional view of the indoor unit during cooling operation. FIG. 8 is a perspective view of the sound sensor mounting portion of the indoor unit.

  The attachment position of the sound sensor is indicated by AA in FIG. 4, and the AA section is shown in FIG. FIG. 4 shows the heating operation.

  As shown in FIGS. 4 to 6 and 8, the sound sensor 19 is positioned inside the air outlet 29 in the left-right direction, preferably substantially at the center of the air outlet 29, and the air suction part 270 ′ in the up-down direction. The interior decorative surface 24 between the air outlets 29, preferably from the lowermost end 290c of the outlet air passage upper wall 290a to the air suction part 270 ', and more preferably from the auxiliary wind direction plate storage part 290b to the air suction part 270'. Place on the back.

  A communication hole 24 b is provided in the internal decorative surface 24 facing the sound sensor 19 arranged in this way, and the sound in the room is efficiently transmitted to the sound sensor 19. For this reason, the sound sensor 19 is hidden by the internal decorative surface 24 and is not visible from the room, but only the small communication hole 24b opened in the internal decorative surface 24 is visible from the room, and the indoor atmosphere is not disturbed. Absent.

  In addition to the indoor sound, the sound sensor 19 collects the operation sound of the air conditioner itself. Since the sound of the air conditioner itself acts as noise when trying to grasp the indoor situation with sound, it is necessary to prevent the sound sensor 19 from collecting the sound as much as possible. The sound of the air conditioner itself is mostly airflow sound by the blower cross-flow fan 311, and its influence can be reduced by separating it from the blower cross-flow fan 311, the suction airflow, and the blowout airflow as much as possible.

  In the present invention, in order to make the sound of the air conditioner itself reaching the sound sensor 19 as small as possible, it is separated from the blower cross-flow fan 311 as much as possible, and in order to reduce the influence of the turbulence of the blown airflow, the blowout air channel upper wall where the flow velocity becomes slow. A communication hole 24b for transmitting the room sound to the sound sensor 19 is provided at a position downstream of the lowest end 290c of the 290a.

  Further, the auxiliary wind direction plate storage portion 290b is arranged so that the communication hole 24b comes in a range of a depression angle of 30 to 40 degrees from the sound sensor 19 that is easy to pick up the sound in the area where the occupant is present apart from the blowing airflow. A communication hole 24b for transmitting the room sound to the sound sensor 19 is formed in the internal decorative surface 24 from the air suction portion 270 'to the air suction portion 270'.

  Furthermore, the communication hole 24b is located at a position farthest from the suction air flow sucked from both ends of the open movable panel 251 when the indoor unit 2 is operated by setting the left and right direction to substantially the center of the blowout port. The influence of airflow can be reduced.

  Further, even when a fan surging phenomenon, which tends to occur when the airflow resistance of the airflow increases due to accumulation of dust on the filters 231 and 231 ′, the surging phenomenon occurs at the blade tip of the blower cross-flow fan 311. In many cases, the influence on the sound sensor 19 placed in the center of the air outlet 29 can be reduced.

  The communication hole 24 b is formed in the bottom surface of the recess 24 a provided in the internal decorative surface 24. The concave portion 24a is widened forward from the bottom surface toward the opening end of the front surface. For this reason, the sound in the room that has reached the wide opening end is amplified while proceeding toward the narrow bottom surface, and is transmitted to the communication hole 24b. The sound sensor 19 picks up the sound. Thereby, the small sound in a room can also be caught.

  Next, a pyroelectric infrared sensor and a radiation sensor will be described with reference to FIGS. FIG. 9 is a perspective view of the pyroelectric infrared sensor mounting portion of the indoor unit. FIG. 10 is a perspective view of the thermopile mounting portion of the indoor unit.

  Similarly to the sound sensor 19, the pyroelectric infrared sensor 17 is located inside the air outlet 29 in the left-right direction, preferably the center of the air outlet 29, and the air suction part 270 ′ and the air outlet 29 in the vertical direction. Preferably, it is disposed behind the inner decorative surface 24 from the lowermost end 290c of the blowout air channel upper wall 290a to the air suction part 270 ', and more preferably from the auxiliary wind direction plate storage part 290b to the air suction part 270'. To do.

  Since the Fresnel lens 17a is essential for the pyroelectric infrared sensor 17 and the figure becomes large, it is impossible to cover it with a makeup face with a small opening in order to make it inconspicuous from the room. For this reason, a pyroelectric cover 17b made of an infrared transmitting material is attached in front of the pyroelectric infrared sensor 17, and a pyroelectric opening 24c is provided in a corresponding portion of the internal decorative surface 24, so that the colors and shapes are matched as if they were integrated. Configure as it is and make it inconspicuous from the room.

  Similarly to the sound sensor 19, the radiation sensor 18, which is a kind of infrared sensor, is positioned inside the air outlet 29 in the left-right direction, preferably at the substantially central portion of the air outlet 29, and the air suction part 270 in the up-down direction. ′ And the air outlet 29, preferably from the lowermost end 290c of the outlet air passage upper wall 290a to the air suction part 270 ′, and more preferably from the auxiliary wind direction plate storage part 290b to the air suction part 270 ′. Located on the back of the surface 24.

  In the part facing the radiation sensor 18 of the internal decorative surface 24, similarly to the sound sensor 19, a front spreading recess 24 a is provided, and a small radiation opening 24 d is formed in the bottom according to the shape of the radiation sensor 18. The temperature of the floor or wall surface in the room is detected.

  Next, a sensor module in which these three sensors are combined will be described with reference to FIGS. FIG. 11 is a perspective view of the sensor module of the indoor unit.

  The above-described sound sensor 19, pyroelectric infrared sensor 17 and radiation sensor 18 are compactly combined into one case as shown in FIG. 11 to improve functions and reduce costs. Each sensor is mounted on a common substrate with printed wiring, simplifying wiring such as power routing, making handling easier, and reducing manufacturing costs.

  In addition, since the sound sensor 19, pyroelectric infrared sensor 17, and radiation sensor 18 are combined in a narrow range, the detection area of each sensor becomes almost the same, and the situation of the detection area is almost the same with sensors of different properties. By detecting and analyzing multifacetedly, the situation in the detection area can be grasped more accurately, and the completeness of energy-saving operation, comfortable operation, and automatic operation of the air conditioner can be increased.

  Next, the filter cleaning mechanism will be described with reference to FIGS. FIG. 12 is a top view of the indoor unit. FIG. 13 is a perspective view of the filter cleaning mechanism portion of the indoor unit, and FIG. 13B is a perspective view showing only the brush.

  The cleaning mechanism 230 includes a sweeping mechanism 233 that sweeps the filters 231 and 231 'with brushes 267 and 267' and dust collecting portions 280 and 280 'that store the swept dust, and in the embodiment, upstream of the indoor heat exchanger 33. Planar filters 231 and 231 'are provided on two orthogonal surfaces facing the air suction portion 270 and the air suction portion 270'. The filters 231 and 231 ′ are engaged with the guide frame 234, and the guide frame 234 includes rails 235 and 235 ′ at the upper rear part and the front lower part, and a propulsion shaft 243 at the intersection of the filters 231 and 231 ′.

  Here, when there are portions having the same function for the upper filter 231 and the front filter 231 ′, the portion for the upper filter 231 is marked with “′” for the portion for the front filter 231 ′. To do.

  The propulsion shaft 243 has a polygonal cross section, is supported by a bearing 245 provided on the guide frame 234, and is fixed to the guide frame 234 via a gear attached to one end passing through the bearing 245 on one side. Connected to A screw 244 and a carriage 261 are loosely mounted on the propulsion shaft 243, and the screw 244 meshes with a rack 237 provided on the guide frame 234 and parallel to the propulsion shaft 243.

  Brush support frames 262 and 262 'are suspended between the carriage 261 and the rails 235 and 235' across the filters 231 and 231 '. The brush support frames 262 and 262' sweep the filters 231 and 231 '. Brushes 267 and 267 'for cleaning are attached.

  Thus, by rotating the moving motor 242, the propulsion shaft 243 and the screw 244 rotate, and the screw 244 moves in the left-right direction along the rack 237 according to the rotating direction of the moving motor 242, thereby moving the carriage 261. Move. As a result, the brushes 267 and 267 ′ move so as to sweep while sliding on the filters 231 and 231 ′, dust on the filters 231 and 231 ′ is swept away by the brushes 267 and 267 ′, and the collection of the left part of the guide frame 234 is performed. Move to dust part 280, 280 '.

  The dust collecting portions 280 and 280 ′ remove and store dust attached to the brushes 267 and 267 ′. Also, the brushes 267 and 267 'are cleaned so that the brushes 267 and 267' can be prepared for the next cleaning.

  Next, the configuration and operation of the cleaning mechanism will be described with reference to FIG. FIG. 14 is an explanatory view of the sweeping operation of the collected dust of the cleaning mechanism.

  To the right of the filters 231 and 231 ', there is a standby section where the brushes 267 and 267' wait when the cleaning operation is not performed.

  When the cleaning operation is performed, the brushes 267 and 267 ′ that have been waiting as shown in FIG. 14A in the standby unit are operated by the sweep mechanism 233 to sweep the filters 231 and 231 ′ in FIG. Move as shown. At this time, the bristles of the brushes 267 and 267 ′ ride on the filter 231 and 231 ′ surfaces slightly protruding through the slope from the open state of the recess A while gradually bending the bristles and deforming the filters 231 and 231 ′. Make a good sliding contact.

  The brushes 267 and 267 ′ sweep the filters 231 and 231 ′ while sweeping the dust 236 while moving in the direction of the dust collecting unit 280. The brushes 267 and 267 ′ that have finished sweeping the filters 231 and 231 ′, together with the dust 236 that has been swept away, pass through the D portion of FIG. 14 to reach the dust collecting portions 280 and 280 ′, and the dust 236 is removed and removed. The dust 236 is stored in the dust collecting portions 280 and 280 ', and the brushes 267 and 267' are cleaned.

  By installing such a cleaning mechanism 230 for the filters 231 and 231 ′, for example, the cleaning mechanism 230 is automatically operated according to the cumulative operation time of the air conditioner, and the filters 231 and 231 ′ are cleaned. It is possible to prevent dust from accumulating excessively at 231 ′, and to prevent a surging phenomenon of the blower cross-flow fan 311 that occurs when dust accumulates excessively at the filters 231 and 231 ′.

  As described above, the air conditioner of the embodiment has a sound sensor, and is provided with a communication hole that communicates the sound sensor with the room, and the position of the communication hole is located inside the both ends of the outlet in the axial direction of the crossflow fan. Then, it arrange | positions between the lowest end of the blower-air-flow-path upper wall, and a suction inlet, equips this suction inlet with a filter, and provides the automatic cleaning apparatus of this filter.

  In general, sounds produced by air conditioners include those caused by airflow and refrigerant flow and driving sounds of various actuators. In recent years, noise has been reduced, and those caused by refrigerant flow and driving sounds of various actuators have been increasing. Etc. have been greatly reduced. Although the sound caused by the airflow is also reduced, the sound caused by the airflow is mostly due to vibrations of members exposed to the airflow and turbulent vortices of the airflow itself, and it is difficult to contain them.

  Recently, in order to improve the operability of air conditioners, products have appeared that incorporate various sensors, grasp the indoor conditions, and automatically change the operating conditions of the air conditioners to match those conditions. It is coming.

  In the air conditioner of the embodiment, the sound sensor for detecting the sound in the room is installed at the position of the periphery of the outlet, so that the sound in the room can be correctly grasped. Moreover, since it arrange | positions in the peripheral edge avoiding a blower outlet, it becomes difficult to receive the influence of the sound resulting from an airflow and the sound carried on an airflow, and can detect the sound in a room more correctly.

  In addition, since an automatic cleaning device for the filter is provided to prevent the dust from accumulating on the filter, the surging phenomenon that tends to occur due to excessive accumulation of dust on the filter is less likely to occur, and the silent operation is continued. Sound can be detected without hindrance.

  For this reason, it is not easily affected by the blowing sound, the room sound can be detected correctly, and surging of the cross-flow fan is less likely to occur. Thus, it is possible to provide an air conditioner having a configuration suitable for the purpose of performing operation control by estimation.

  In the air conditioner of the embodiment, the sound sensor and the pyroelectric infrared sensor or the thermopile are mounted on, attached to, or stored in the same substrate, sensor base, or case.

  Thereby, the wiring which connects each sensor and a control part is simplified, and cost is reduced. In addition, because each sensor is located at almost the same location on the air conditioner, the area detected by each sensor is almost the same, and each sensor detects information about this almost same detection area almost simultaneously according to its characteristics. Therefore, the state of the detection area can be grasped more accurately.

  For this reason, it is suitable for resource saving, cost is reduced, the state of a detection area can be grasped | ascertained more correctly, and the air conditioner which air-conditions a room appropriately can be provided.

  In the air conditioner according to the embodiment, the sound sensor and the pyroelectric infrared sensor or the thermopile are arranged with the outlet center in the crossflow fan axial direction interposed therebetween.

  In general, an air conditioner is installed at a position where air can be efficiently conditioned in the area where the occupants are usually present. Such a position is a position where the air blown out from the air conditioner circulates appropriately in a range where the occupants are usually present without being obstructed, for example, often at the center of the wall of the room. Such a position is also a position where the range in which the occupant is normally present can be well-viewed, and is often suitable for gathering information on the range in which the occupant is normally present.

  In the air conditioner of the embodiment, each sensor (hereinafter referred to as a sensor group) mounted on the same substrate is disposed at a position near the center of the outlet, so that information on the range in which the occupants are usually present is provided. Can be detected according to the characteristics of each sensor, and indoor information can be collected skillfully.

  In addition, when the air conditioner is installed at the corner where the walls meet, the detection accuracy of each sensor may be deteriorated due to the sound reflected by the adjacent wall and the influence of infrared rays, but from the adjacent wall to the sensor group. Since the distance can be secured at least about half the long side dimension of the air conditioner outlet, it is possible to suppress the deterioration of the detection accuracy of the sensor group, and the response when installed in the corner of the room, The bad influence by reflection etc. can be reduced.

  In addition, when the sensor group is arranged from the short side of the outlet, another sensor is added to compensate for the effects of reflection and reflection as described above, or the sensor is adjusted according to the installation position of the air conditioner. However, by arranging the sensor group near the center of the outlet, it becomes unnecessary to adjust these additional sensors and sensors, and the cost can be reduced.

  Even if the above-mentioned surging phenomenon occurs unexpectedly, the surging phenomenon starts at the blade tip of the cross-flow fan, so it is located away from the surging part and close to the center of the outlet. The effect on the sound sensor is small.

  Therefore, it is possible to provide an air conditioner that efficiently collects necessary information in the room with a small number of sensors and appropriately controls the information.

  In the air conditioner of the embodiment, the maximum value of the mutual distance between the sound sensor and the center of the pyroelectric infrared sensor or thermopile is a three-dimensional rectangular coordinate with the axial direction of the crossflow fan as the X coordinate axis. The value of the X coordinate is larger than the values of the other coordinate axes.

  As a result, the sound sensor, pyroelectric infrared sensor, and thermopile are arranged long in the axial direction of the cross-flow fan, and fit comfortably in the elongated space between the outlet and the inlet.

  For this reason, an air conditioner can be provided in which an empty space can be used effectively and an increase in the size of the housing is suppressed.

  Next, the structure of the front vertical wind direction plate 291 will be described with reference to FIGS. FIG. 15 is a cross-sectional view of the sound sensor mounting portion when the front vertical wind direction plate of the indoor unit is closed. FIG. 16 is a detailed view of the front vertical wind direction plate. FIG. 17 is a front view of the sensor mounting portion when the front vertical wind direction plate is opened. FIG. 18 is a front view of the sensor mounting portion when the front vertical wind direction plate is closed.

  In FIG. 16, the front vertical wind direction plate 291 according to this embodiment includes a transparent member 291a formed of a transparent material and an opaque member 291b having a size that fits within the projected area of the transparent member 291a. It consists of.

  In this embodiment, the transparent member 291a is formed so as to protrude greatly from the front end portion side of the front vertical wind direction plate 291.

  That is, the opaque member 291b of this embodiment forms the arms 291e extending while inclining toward one end in the depth direction on both sides and the center of the thin plate-like base portion 291c having the depth dimension d3. A bearing 291f is formed at the end of the arm 291e. Further, an auxiliary wind direction plate 291d arranged side by side with the base portion 291c is provided between the arms 291e.

  On the other hand, the transparent member 291a is a transparent thin member having a depth dimension d1. The transparent member 291a is formed so that the end on the arm 291e side is substantially aligned and projects from the end of the opaque member 291b to the other end side by a depth dimension d5. And the transparent member 291a has performed back surface printing in the range of the back surface which contacts the opaque member 291b.

  That is, the transparent member 291a divides the back surface side into two in the depth direction, performs back surface printing on the arm 291e side that is the rotating shaft side, and forms the other end side that is the front end side transparently with respect to the bearing 291f. doing. Thereby, while the opaque member 291b which is unnecessary in terms of design is made invisible, the front end portion of the front vertical wind direction plate 291 can be made transparent, so that the operation of the front vertical wind direction plate 291 is improved while improving the design. Can reduce the feeling of pressure. For example, the opaque processing portion of the transparent member can cover the shaft portion and the like supporting the wind direction plate so as not to be seen, and the additional function portions such as the human detection sensor and the microphone can not be seen.

  That is, as shown in FIG. 15, when the air conditioner is stopped, the front vertical wind direction plate 291 can be accommodated adjacent to the lower end portion of the movable panel 251 that covers the front portion of the air suction portion 270 ′. Therefore, when the front vertical wind direction plate 291 is stored, the front end portion of the front vertical wind direction plate 291 is formed transparent, so that the user can visually recognize the internal decorative surface 24 through the transparent portion. be able to. In this embodiment, it is possible to provide an internal display unit 22 that displays the driving state on the internal decorative surface 24 that can be visually recognized by the user both in the driving state and in the driving stop state.

  As shown in FIG. 16, when the air conditioner is stopped, the band-shaped internal display unit 22 can be formed on the internal decorative surface 24 that is visible through the transparent member 291 a at the tip of the front vertical wind direction plate 291. Therefore, it is possible to provide a display and various sensors on the internal display unit 22 that is visible without being influenced by the operation of the front vertical wind direction plate 291. As shown in FIG. 18, in the embodiment, the operation state is displayed on the internal display unit 22 in a line in the horizontal direction. The pyroelectric infrared sensor 17, the sound sensor 19, and the radiation sensor 18 that are operated during driving are disposed on the back side of the internal decorative surface 24 that is concealed by the front vertical wind direction plate 291.

  As described above, the sound sensor 19, the radiation sensor 18, and the pyroelectric infrared sensor 17 are disposed on the back side of the internal decorative surface 24, and the opaque member 291b when the front vertical wind direction plate 291 is closed is disposed in front thereof. Thus, when the front vertical wind direction plate 291 is closed, the openings of the sound sensor 19, the radiation sensor 18, and the pyroelectric infrared sensor 17 become invisible from the room as shown in FIG. become.

  In addition, when the temperature of the indoor heat exchanger 33 is low at the start of heating and the operation of the blower cross-flow fan 311 is postponed, it is necessary to display the residual heat. At this time, even if the front vertical wind direction plate 291 is closed, the residual heat As shown in FIG. 17, since the display lamp 397a of the sensor module 16 can be visually recognized through the upper part of the transparent member 291a, the display window 22b, and the display opening 22a at the upper part of the front up / down wind direction plate 291, the display function is maintained and used. Appropriate information can be communicated to the person.

  During the operation of the air conditioner, as shown in FIG. 18, the sound sensor 19, the radiation sensor 18, the pyroelectric infrared sensor 17, and the front vertical wind direction plate 291 that has blocked the indoor living space are opened, The function is demonstrated and the wind direction is controlled.

  At this time, the internal display part 22 is exposed and the indicator light 397a of the sensor module 16 can be visually recognized.

  As described above, the air conditioner according to the embodiment includes the shielding member that makes the sound sensor, the pyroelectric infrared sensor, or the thermopile difficult to see.

  As a result, when the air conditioner is stopped, the sound sensor or the infrared sensor can be hidden by the shielding member to provide a clean design without extra unevenness, and the interior atmosphere is not disturbed.

  For this reason, when not in use, an air conditioner that does not disturb the atmosphere of the interior can be provided.

  Further, in the air conditioner of the embodiment, the shaft of the cross flow fan and the longitudinal direction of the outlet are arranged in the horizontal direction, and the shielding member moves in conjunction with the vertical wind direction plate.

  Thereby, this invention can be employ | adopted for the wall-hanging type indoor unit which occupies many with a home air conditioner, and the effect can be exerted on a wide range of air conditioners.

  In this way, by interlocking with the vertical wind direction plate, the front vertical wind direction plate, the rear vertical wind direction plate, and the movable panel are controlled by the control unit as shown in FIG. 2 when the operation is stopped without using the sound sensor and infrared sensor. Since the air outlet and the front air suction part are controlled to close, the front upper and lower wind direction plates are rotated and stored in front of the auxiliary wind direction plate storage unit, and the sound sensor, infrared sensor, and air path auxiliary wind direction plate are stored. The storage part is shielded and the outlet is closed in cooperation with the rear vertical wind direction plate.

  At this time, the outer wind direction surface of the front vertical wind direction plate is a curved surface having a smooth large curvature so as to match the outer shape of the air conditioner. By doing so, the front vertical airflow direction plate and the rear vertical airflow direction plate can be continuously and smoothly formed with the outer surface of the airflow surface as the outer surface. Thus, when the sound sensor is not used, a soft and calm appearance without unnecessary unevenness is obtained, and the indoor atmosphere is not disturbed.

  For this reason, when not in use, an air conditioner that does not disturb the atmosphere of the interior can be provided.

  Further, in the air conditioner of the embodiment, the shielding member is constituted by a part of the vertical wind direction plate.

  As a result, by using the front vertical wind direction plate as a shielding member, a dedicated shielding mechanism and shielding member driving unit are not required, saving resources and reducing mass and cost. In addition, dedicated shielding member driving software is not required, and the development cost can be reduced.

  For this reason, it is suitable for resource saving, can reduce cost, and can provide the air conditioner which sends the airflow air-conditioned according to the position of the occupant at the time of use.

  The air conditioner of the embodiment makes the sound sensor, pyroelectric infrared sensor or thermopile difficult to see from the room when the sound sensor, pyroelectric infrared sensor or thermopile is not used.

  As a result, when the sound sensor is not in use, such as when it is stopped, the outlet is covered with the vertical wind direction plate, the sound sensor is hidden, the unevenness is made inconspicuous as much as possible, and the design blends with the wall, and in the indoor unit Prevent dust from entering.

  For this reason, when not using the sound sensor at the time of stop, etc., it becomes the appearance which melt | dissolved in the indoor atmosphere, and does not disturb the atmosphere of an interior, The air conditioner excellent in the external appearance when not in use can be provided.

  In the air conditioner of the embodiment, the upper and lower wind direction plates include a rear upper and lower wind direction plate and a front upper and lower wind direction plate that serves as the shielding member, and a transparent portion and an opaque portion are formed on the front upper and lower wind direction plate. .

  In general, a separate type wall-mounted air conditioner is often used in consideration of energy-saving performance, design, installation space, etc. In this case, the casing is configured horizontally and cross-flowed A form in which air-conditioned air is blown into a room from a horizontally long outlet using a fan is often used. At this time, the air outlet is provided from the lower surface of the housing to the lower part of the front surface. When the air conditioner is not used, the air outlet is closed, and as described above, covered with the vertical wind direction plate so as to become familiar with the outer shape of the housing. Things are also done.

  In this case, when the wind direction plate that covers the lower part of the front surface so as to fit the housing is opened at a predetermined angle corresponding to the operation mode, the tip part projects forward, giving the user a feeling of pressure. There is.

  In the air conditioner of the embodiment, the wind direction is favorably deflected when the front vertical wind direction plate that covers the lower part of the front surface so as to fit into the housing is opened. However, even if the tip portion projects forward, the tip portion is formed transparent, so that it can be seen through and the feeling of pressure can be eased.

  For this reason, the air conditioner which controls a wind direction favorably can be provided, reducing the feeling of pressure at the time of the movement of a front part up-and-down wind direction board.

  Moreover, the air conditioner of an Example makes the said sound sensor, a pyroelectric infrared sensor, or a thermopile difficult to see at the said opaque part at the time of operation stop, and covers an internal display part with the said transparent part.

  Thereby, when the air conditioner is stopped, the sound sensor or the infrared sensor is concealed by the opaque part of the front upper and lower wind direction plates serving as a shielding member, so that it is possible to provide a clean design without extra unevenness, The atmosphere is not disturbed.

  In addition, the internal display is covered with a transparent part, but when the operation is stopped, the front vertical wind direction plate rises to an angle close to vertical so that it fits into the housing, so it looks up from below like a wall-mounted air conditioner Sometimes, as long as the indicator light of the sensor module is not lit, the reflection on the surface of the transparent part has a strong influence and the inner display part of the back part becomes invisible, and as above, a clean design can be achieved. There is no disturbing atmosphere.

  In addition, even if the front upper and lower wind direction plates are closed, the operation display can be confirmed if the indicator light on the sensor module is lit.In order to prevent cool air, such as at the start of heating operation, until the temperature of the heat exchanger rises The operating state can be correctly confirmed even during preheating operation in which the fan is not operated with the wind direction plate closed.

  Therefore, it is possible to provide an air conditioner that can correctly check the operation state even when the wind direction plate is closed without disturbing the atmosphere of the interior when not in use.

  Next, a method for subdividing and detecting the amount of activity of a room occupant by combining a pyroelectric infrared sensor and a sound sensor will be described with reference to FIGS. FIG. 19 shows the relationship between the activity content and the activity amount.

  The purpose of air conditioners is to make the room a comfortable environment, but consideration for the global environment is also strongly required. In order to respond to this, combining the pyroelectric infrared sensor and sound sensor, subdividing the activities of the occupants and controlling the air conditioner in detail while considering the comfort of the occupants, A method for energy saving operation is proposed.

  Conventionally, it has been practical to detect the amount of activity of people in the room using a pyroelectric infrared sensor, and adjust the room temperature to a lower level when the activity level is large, and adjust the room temperature to a higher level when the activity level is small. I came. However, using only the pyroelectric infrared sensor to divide the amount of activity of the occupants in multiple stages is because the sensitivity of the sensor becomes dull with respect to detection errors and movement in the direction toward the sensor. If it is not increased, it will be difficult and the cost will increase.

  MET is used as a unit representing the amount of human activity, and the contents of activities and their approximate numerical values are as shown in FIG. On the left side of the figure, the active mass classification when only the pyroelectric infrared sensor is used is described as an example. In this way, when only one pyroelectric infrared sensor is used, the accuracy is poor for the reasons described above, even if the activity amount is divided into three categories: large, medium, and small. It was.

  On the right side of the figure, an example in which the amount of activity is divided by the method of the present invention is described. According to the present invention, since the activity amount can be subdivided and divided in this way, it is possible to perform energy-saving operation in consideration of comfort with air conditioning suitable for the activity amount of the occupant.

  Next, an outline of control of the air conditioner of the present invention will be described with reference to FIG. FIG. 20 is a block diagram of the control unit of the indoor unit.

  In FIG. 20, the air conditioner includes a control unit 10 inside, and controls the indoor unit 2 and the outdoor unit 6 in accordance with information from various sensors and instructions from the remote controller 5. Information from the room 900 is a microcomputer inside the control unit 10 using a room temperature sensor 11, a humidity sensor 12, a radiation sensor 18, a remote control ambient temperature sensor 13, a remote control position sensor 14, a pyroelectric infrared sensor 17, a sound sensor 19, and the like (see FIG. The air conditioner is controlled according to various calculation results.

  Based on information from the pyroelectric infrared sensor 17 and the sound sensor 19, the activity amount determination unit 45 divides the activity amount of the occupant into multiple stages as illustrated on the right side of FIG. 19 and transmits it to the temperature shift value setting unit 46. The temperature shift value setting unit 46 calculates the temperature shift value based on information from the above-described various sensors and calendar information 15 provided in the control unit 10 in addition to the activity amount information from the activity amount determination unit 45. To the target room temperature setting unit 47.

  The target room temperature setting unit 47 calculates the target room temperature based on the temperature shift value information from the temperature shift value setting unit 46 and the set room temperature information from the room temperature setting unit 48 and transmits the target room temperature to the air conditioning capability control unit 55.

  The air conditioning capacity control unit 55 uses the target room temperature from the target room temperature setting unit 47, the intake air temperature information from the room temperature sensor 11, and the like, based on the compressor rotation speed setting unit 56, the indoor fan rotation speed setting unit 57, and the outdoor fan rotation speed setting unit 58. The compressor rotation speed, the indoor fan rotation speed, and the outdoor fan rotation speed are set, and the compressor 65, the blower cross flow fan 311, and the outdoor blower 66 are controlled.

  In general, temperature adjustment in an air conditioner is performed by detecting the temperature of the intake air sucked into the air conditioner 11 by the room temperature sensor 11 as the air blown out from the air conditioner circulates back through the room, and the intake air temperature is the target. By changing the rotation speed of the compressor 65, the rotation speed of the blower 66, and the blower cross-flow fan 311 so as to reach the temperature, the cooling and heating ability is changed, and the temperature of the blowout air of the air conditioner is changed.

  At this time, the heating capacity and cooling capacity of the air conditioner are controlled according to the intake air temperature and the set temperature of the air conditioner, but the intake air temperature of the air conditioner installed in the indoor high place is used. It is known that it will be higher than the temperature of the living space from the floor of the room where the person is present to the height of the face, and in order to correct this temperature difference, a predetermined value (temperature shift value) is set to the set temperature. The air conditioner is controlled so that the intake air temperature approaches the additional set temperature by setting the added additional set temperature as the target temperature. As the predetermined value, a value of about −1 to 5 degrees is used although it differs depending on the structure of the air conditioner and the operation modes such as heating and cooling.

  Next, a method for determining the amount of activity of a room occupant using a sound sensor and a pyroelectric infrared sensor will be described. First, an example of indoor sound will be briefly described with reference to FIGS. FIG. 21 is a frequency analysis example 1 of room sound, (a) is an example of frequency analysis of sound of an air conditioner, and (b) is an example of frequency analysis of sound of a vacuum cleaner. FIG. 22 shows a frequency analysis example 2 of room sound, (a) shows an example of frequency analysis of real voice, and (b) shows an example of frequency analysis of television sound.

  It is known that human thermal sensation is affected by temperature, humidity, airflow, radiation, clothing and activity. Most modern air conditioners control the room temperature only (temperature and humidity on some high-end models) to maintain comfort.

  However, if the behavior of the person in the room changes, the thermal sensation of the person will change even if the other conditions are the same. In order to maintain comfort, the temperature (and humidity) etc. are changed according to the person's behavior. It becomes necessary to do.

  In order to meet such demands, some air conditioners have a human detection function that raises or lowers the room temperature according to the amount of activity of the occupants and maintains the comfort of the occupants. .

  However, in household appliances with severe cost constraints, the cost that can be applied to the human detection function is not large, and a method with higher detection accuracy that inevitably suppresses the cost is being sought.

  A home air conditioner uses a pyroelectric infrared sensor as a human detection function to detect the movement of a room occupant.

  The pyroelectric infrared sensor is a sensor using a pyroelectric effect in which a crystal or resin having a large dielectric constant generates a charge due to a temperature change, and can detect infrared rays emitted from a person without contact.

  By installing a Fresnel lens in front of this pyroelectric infrared sensor and intermittently inputting infrared light into the sensor, it is possible to detect human movement.

  Therefore, when human detection is performed using only a pyroelectric infrared sensor, the output of the sensor changes when movement occurs in the occupant, and it can be detected that the occupant has moved. When there is no signal, the sensor output does not change, so it is possible to detect that there is no movement in the room.

  However, it is not possible to determine how much activity the occupant is based on the presence or absence of the occupant's movement.

  Therefore, in order to determine the amount of activity of the occupants, a plurality of pyroelectric infrared sensors are provided, and when the occupants move greatly, the multiple pyroelectric infrared sensors react to move the occupants. When is small, only one sensor reacts, and there was a method of distinguishing the amount of activity of the occupants.

  This method requires a plurality of pyroelectric infrared sensors, which increases the cost.

  In addition, even if there are a plurality of sensors, there is a problem that the amount of activity cannot be determined when the motion of the occupant is smaller than the motion that can be detected by the sensor or when the motion is similar.

  Therefore, it can be seen that there is a limit in determining the amount of activity when human detection is performed using only the pyroelectric infrared sensor.

  In the air conditioner of the embodiment, the motion of the occupant is detected using a pyroelectric infrared sensor that has begun to be adopted in recent years, and the sound generated at that time is detected by the sound sensor.

  When a resident moves something, generally a sound accompanying it is generated. By predicting various scenes in the room where the air conditioner is installed, it is possible to more accurately grasp the amount of activity of the occupants from the detection results of the infrared sensor and the sound sensor. It becomes.

  There are various sounds generated in the room where the air conditioner is operated. First, the sound of the air conditioner itself, the sound of conversation between the people in the room, the person in the room is deskwork, sewing, light Sounds caused by moving away, etc., sound generated when the occupants operate devices such as vacuum cleaners, cookers, and barbers, and occupants enjoying television, radio, and audio equipment Sounds, music, sound effects, etc., sounds such as clocks, appreciation fish tank pump sounds, etc. even when unattended.

  These sounds can be divided into sounds accompanying the activities of the occupants and sounds unrelated to the activities of the occupants. Sounds that are not related to the activities of the occupants include the sound of the air conditioner itself, the sound of television, radio, audio equipment, music, sound effects, clocks, and the sound of the appreciation fish tank pump. Sounds associated with the activities of occupants include sounds such as conversation, desk work, sewing, light tidying up, vacuum cleaners, cookers, and hairdressers.

  Among the sounds picked up as irrelevant to the activities of the occupants, the sounds that are generated even when they are unattended, such as the clock and the sound of the appreciation fish tank pump, are the environment of the room where the air conditioner is installed. It is a sound that should be called a sound, and it must be distinguished from other sounds by adding it to the operation sound of the air conditioner itself. Similarly, the sound, music, and sound effects of television, radio, and audio equipment picked up as sounds unrelated to the activities of the occupants are irrelevant to the activities of the occupants other than the sound of the air conditioner itself. It is necessary to distinguish it from other sounds as sounds.

  Also, when using heavy household equipment such as when using a vacuum cleaner in the sound accompanying the activities of the occupants, the occupants are also actively moving, so there is no need for proper air conditioning. It is necessary to distinguish it from the sound. Similarly, the conversation in the sound accompanying the activities of the occupants is necessary to finely divide the amount of activities of the occupants using the sound sensor, and if the conversation voice is low, the conversation is quietly rested It can be judged that the general tendency of the person's activity to increase if the conversation is loud and continues without interruption, so it is necessary to distinguish it from other sounds. Similarly, if you use light household equipment such as cooking equipment, hairdressing equipment, deskwork equipment, etc. in the sound that accompanies the activities of the people in the room, the people in the room will also use it while moving lightly. It is necessary to distinguish between using a group of devices and taking a rest while talking in a quiet voice.

  From the above, the types of sound sources to be identified are air conditioners themselves, broadcast receiving devices such as televisions, heavy household devices such as vacuum cleaners, light household devices such as cooking devices, and occupants It becomes a conversation. Since the sound sources that cannot be discriminated from these have intermediate movements and sounds, they are classified into light household equipment groups.

  Looking at the relationship between the types of these sound sources and the value of activity MET in FIG. 19, TV / music appreciation ... 1.0 MET, indoor cleaning ... 3.0 METs, cooking ... 2.0 METs, conversation / telephone Although it is not in 19, it becomes 1.0 to 1.8 METs from other materials, and the air conditioner itself does not change the amount of activity of the occupants, so the amount of activity of the occupants depending on the type of sound source is significant. Household equipment group ≧ light housework equipment group ≧ conversation ≧ broadcast receiving equipment group ≧ air conditioner itself.

  The behavior patterns of the occupants in the room of ordinary households are various, and it is difficult to predict them one by one. However, the behavior of the occupants and the sound in the room at that time are divided into the following two patterns.

1: When the occupant is active and the sound accompanying the activity is generated, the change in fever in the body becomes large. Hereinafter, the type of sound source that emits sound accompanying this activity is referred to as a warm sound source.
2: There is activity in the room, but when there is almost no sound accompanying the activity, the fever in the body is small. In the following, the type of sound source that emits sound that does not accompany this activity is referred to as a warm sound fluctuation small sound source.

  If the sound in the room is from a sound source with small fluctuations in temperature, the detection result of the pyroelectric infrared sensor is divided into multiple stages, and the amount of activity of the occupants is determined according to the stage, and the air conditioner To control. Also, if the sound in the room is from a sound source with a large sense of temperature fluctuation, if the amount of sound is large, it is determined that the activity is active. The air conditioner is controlled by determining that the activity amount is larger than the activity amount of the occupant determined from the detection result of the sensor.

  In this way, based on the detection results of the sound sensor, the amount of activity of the occupants can be divided into more categories by dividing the sound sources in the room into groups of small sound sources with small fluctuations in temperature and large sound sources with large fluctuations in temperature. It can be subdivided, and with finer control, it is possible to achieve power saving effects while considering comfort.

  As described above, a group of broadcast receivers such as an air conditioner itself, a television, and a radio can be considered as a small source of warmth fluctuation. In addition to the conversations that the room people themselves exchange with each other, there may be a group of vacuum cleaners that support housework, health promotion equipment, juicers, cooking utensils such as mixers, and barber equipment such as dryers and shavers. In this case, the air conditioner itself and the conversation are independent sound sources, but for convenience of explanation, the air conditioner itself and the conversation are also expressed as a group.

  These groups of large temperature sensation fluctuation sound sources generally use electric motors inside to support the user's power and speed. Among these, heavy household appliances such as vacuum cleaners and health promotion appliances that require the user's power are compelled by the users themselves and have a relatively long duration. For the sake of convenience, a device group other than the heavy household device group and a device group that does not impose great activity on the user and the above-described sound source group will be referred to as a light household device group.

  In this way, by making the air conditioner itself and the broadcast receiving device group a group of small thermal sensation fluctuation sound sources, and the conversation, heavy household equipment group and light household equipment group as a group of large sensation fluctuation sound source, Based on the detection result of the sensor, the group of sound sources in the room is determined, and according to the determined sound source group, the sound sources can be divided into a group of small sources of thermal sensation variation and a group of sources of large thermal sensation variation, The amount of activity of the occupants can be subdivided into more categories, and with more fine-grained control, power saving effects can be achieved while considering comfort.

  From this, by dividing the sound into multiple frequency bands according to the frequency, and evaluating the sound volume, continuity, irregularity, regularity, interval of intermittentness, etc. with appropriate indicators in each frequency band, It was found that the type of sound source can be estimated by a simple method at a relatively low cost.

  As an example of the sound accompanying the activities of the occupants, FIG. 21B and FIG. 22A show the results of frequency analysis of the sound of the vacuum cleaner and the human voice. As can be seen from the figure, the sound of the vacuum cleaner includes all the sounds from low frequency to high frequency, and the human voice has less high frequency sound, and the low frequency sound near 1kHz is better than other parts. I understand. In addition, the sound of the vacuum cleaner was heard continuously, and it was also found that human conversation was irregularly interrupted.

  Moreover, as an example of the sound not related to the activities of the occupants, the results of frequency analysis of the sound of the air conditioner itself and the voice of the television are shown in FIGS. 21 (a) and 22 (b). As can be seen from the figure, the air conditioner itself has low and high frequency sounds as a whole, and the television voice has high frequencies of 4 kHz or higher, including low and high frequencies. It can be seen that there are much more than human voices.

  Here, the characteristics of each sound source group are compared and an attempt is made. In the state where there is no sound accompanying the activities of the occupants, for example, the sound of wall clocks, the sound of the circulation pump of the ornamental fish tank, the sound of the air conditioner itself, etc., detected in the unattended room, The loudness of the room is minimal. In this case, both low frequency sounds and high frequency sounds are continuously detected at a low level, and the results are regular. Thereby, when the result of detecting the sound in the room by the sound sensor is less than a predetermined level and regularly continues, the group of sound sources is determined as the air conditioner itself.

  Subsequently, when the occupant is cleaning with a vacuum cleaner, the sound in the room can be heard only from the vacuum cleaner, not the voice of conversation or the sound of the television. In this case, both low-frequency sound and high-frequency sound are detected continuously at a high level, and the result is regular and hardly changes in level. As a result, if the result of detecting the sound in the room by the sound sensor is equal to or higher than a predetermined level and regularly continues at substantially the same level, the group of sound sources is determined as the heavy household equipment group.

  Next, when people in the room are watching television, radio, etc., or when they are talking with each other, there is irregularity in the conversation and there are many low-frequency sounds. In addition, there are generally long interruptions. From this, it becomes possible to distinguish from the sound of the above-mentioned air conditioner itself or heavy household equipment group.

  Here, it is difficult to determine whether the sound source belongs to a group of broadcast receiving devices such as television and radio, or whether the sound source is an actual conversation between occupants. However, unlike real-life conversations, silence does not last for a long time, and high-frequency sounds that do not appear in real-life conversations enter commercials and effect music that enter the middle. By combining them, it is possible to determine the conversation with the broadcast receiving device group.

  Sounds that are not discriminated as the air conditioner itself, the heavy household equipment group, the broadcast receiving equipment group or the conversation in the above discrimination procedure are discriminated as the light household equipment group.

  A specific discrimination procedure is given as follows based on the above-mentioned matters.

Procedure 1. A sound sensor provided in the air conditioner separates and extracts a room sound into a low frequency band sound and a high frequency band sound during operation of the air conditioner.
Procedure 2. The separated sound is sampled for each frequency band at a predetermined sampling period for a predetermined time, and the ratio of the number of sound detections in the low frequency band (BP) and the ratio of the number of sound detections in the high frequency band (HP) are calculated. Calculate and use as sampling result.
Procedure 3. The sampling is performed a plurality of times (m times, 10 times in the embodiment), and the sampling results BP1 to BPm and HP1 to HPm are obtained for each time.
Procedure 4. The sound level is determined by the magnitudes of BP1 to BPm and HP1 to HPm.
Procedure 5. The continuity of sound is judged by whether all sampling results are on one side of a predetermined threshold value determined for each group of sound sources. This determination method may be used instead of the above determination method 4.
Procedure 6. The regularity of the sound is determined by whether or not the difference between the upper and lower limits of the sampling result and the average value of the sampling result is within the determination range determined for each group of sound sources.
Step 7. The irregularity of the sound is such that the number of times the sampling result is equal to or greater than a predetermined determination threshold defined for each group of sound sources is equal to or greater than a predetermined lower limit threshold defined for each sound source group and equal to or less than an upper limit count threshold. Judgment is made based on whether or not a series of times equal to or greater than the determination threshold is interrupted.
Procedure 8. Whether or not there is a long interruption of the sound is that the number of times that the sampling result is equal to or greater than a predetermined threshold value BT, HT determined for each group of sound sources is equal to or less than a predetermined upper limit number threshold value BJ, HJ defined for each group of sound sources, , A threshold value BT, a predetermined determination threshold value BX determined for each group of sound sources, in which the difference between the upper limit and lower limit of the sampling result and the average value of the sampling result is determined. Judgment is made based on whether or not HX is exceeded.

  The type of sound source is determined by organically combining the above procedures.

  Next, a method for discriminating each sound source will be described in detail with reference to FIGS. FIG. 23 is a sound source determination block diagram. FIG. 24 is an explanatory diagram before the determination. FIG. 25 is an explanatory diagram of a main part of the determination.

  For example, first, in FIG. 23, the sound signal in the room is captured by the microphone of the sound sensor 19 according to the procedure 1, converted into an electric signal, amplified, and separated into a plurality of frequency bands (in the embodiment, two frequency bands). . The signal converted into an electric signal and amplified is separated by a band-pass filter that passes low-frequency sound of 5 kHz or less and a high-pass filter that passes sound of high frequency of 4 kHz or more, and is digitized and built into the control unit Is transmitted to the microcomputer.

  Next, based on the sampling result obtained in step 2 in FIG. 24B, the sizes of BP1 to BPm and HP1 to HPm obtained in step 3 in FIG. 4, if the air conditioner determination threshold BPa in the low frequency band is less than the air conditioner determination threshold HPa in the high frequency band, the sound source is determined as the air conditioner itself as shown in FIG. The magnitudes of the values of BP1 to BPm and HP1 to HPm are equal to or higher than the heavy household equipment judgment threshold BPh in the low frequency band and the heavy household equipment judgment threshold HPh in the high frequency band according to the procedure 4 in FIG. If so, the type of sound source is set as a candidate for the heavy household equipment group.

  Next, in FIG. 25 (e), the sound source type becomes a candidate for the heavy household equipment group in step 4, and similarly, in step 6 in FIG. 25 (e), the upper limit and lower limit of the sampling result and the average value of the sampling result are set. If the difference is within the heavy household equipment determination width BWc in the low frequency band and the heavy household equipment determination width HWc in the high frequency band, the type of the sound source is determined as shown in FIG. Judge as a group. In the figure, a vacuum cleaner is taken as an example as a representative of the heavy household equipment group.

  When it is determined in FIGS. 25C and 25E that neither the air conditioner itself nor the heavy household equipment group is determined, broadcasting in the frequency band where the sampling result is low according to the procedure 7 in FIG. Receiving device determination threshold BPt, lower limit frequency threshold BLt of broadcast receiving device in the lower frequency band of the broadcast receiving device group, the number of times that is equal to or higher than the broadcast receiving device determination threshold HPt in the higher frequency band, of the broadcast receiving device in the higher frequency band The upper limit frequency threshold value BHt of the broadcast receiving device in the low frequency band that is equal to or higher than the lower limit frequency threshold value HLt and lower than the upper limit frequency threshold value HHt of the broadcast receiving device in the high frequency band, and further, the broadcast receiving device determination threshold value BPt , In the case where a series of times greater than or equal to the broadcast receiving device determination threshold HPt in the high frequency band is interrupted, the type of sound source is determined as the broadcast receiving device group as shown in FIG. In the figure, a television is taken as an example of a representative broadcast receiving device group.

  If it is determined in FIG. 25G that the device is not a broadcast receiving device, the number of times that the sampling result is equal to or higher than the conversation determination thresholds BPs and HPs in step 7 in FIG. The lower limit frequency threshold BLs for conversation in the band, the lower limit frequency threshold HLs for conversation in the high frequency band and the upper limit frequency threshold BHs for conversation in the low frequency band, and the upper limit frequency threshold HHs for conversation in the high frequency band, Furthermore, when the series of times equal to or higher than the conversation determination thresholds BPs and HPs is interrupted, the type of sound source is determined to be conversation as shown in FIG.

  If it is determined that it is not a conversation, the type of sound source is determined to be a light household equipment group as shown in FIG. This is because if the voice of the conversation becomes loud and the spoken voice continues without interruption, it will not be judged as a conversation, but in such a case, the amount of activity of the person who is talking is also increasing, cooking equipment, hairdressing equipment This is because the amount of activity is almost the same as when using a group of light housework devices such as deskwork devices, so that it can be considered that the group of light housework devices is used in the control of the air conditioner. In the figure, the light household equipment group is described as other.

  Next, a determination threshold that plays an important role in determining a sound source from the sampling result will be described with reference to FIG. FIG. 26 is an explanatory diagram of correction by ambient sound.

  There are various sounds in the room, such as the clock and the sound of the appreciation fish tank pump, even when the occupants are quiet. When trying to control the air conditioner with the sound sensor, the occupants should be quiet. It is necessary to consider the effect of the sound of the air conditioner and the sound of the air conditioner itself. For this reason, in the air conditioner of an Example, the sound when a resident is quiet is determined by the above-mentioned method at the time of a driving | operation start.

  If the current operation is the first operation when the air conditioner is installed for the first time, a reference environmental sound measurement period in which the sound sensor is used to measure and measure the reference environmental sound in a quiet state (Example) Then, it is measured for 1 minute after being operated or stopped in a quiet state, and the initial value stored for each time zone in the storage device of the air conditioner is substituted for the reference value.

  The average of the sampling results at this time is named the initial value, and is compared with a reference value determined for the air conditioner itself (substantially coincides with the average value of the sampling results when operated in a similar environment). If the comparison result is the reference value <the initial value and the sound source judgment result is the air conditioner itself, the environmental sound in the room other than the sound of the air conditioner itself will affect the result even if the room is quiet. Therefore, the determination threshold value of each sound source is corrected.

  If the sound source judgment result is a sound source group other than the air conditioner itself, it is judged that there is a significant sound that cannot be said to be the air conditioner itself or the environmental sound, and the judgment threshold value of each sound source is corrected. Absent. When the comparison result between the initial value and the reference value is the reference value ≧ the initial value, each sound source can be sufficiently identified and determined by the current determination threshold value, and therefore the determination threshold value of each sound source is not corrected.

  Thus, the air conditioner of the embodiment provides a sound source type determination threshold value for determining the sound source type based on the detection result of the sound sensor, and is in a quiet state in the room where the air conditioner is installed. A threshold correction unit that corrects the determination threshold according to the detection result (initial value) of the sound sensor in the reference environmental sound measurement period in which the sound sensor is operated or stopped at The activity amount determination unit determines the type of the sound source according to the determination threshold corrected by the threshold correction unit, and determines the activity amount of the occupant according to the determined type of the sound source and the detection result of the infrared sensor. .

  Thereby, it is possible to know the detection result of the sound sensor in a state where the sound that can be realized when the air conditioner is operated or stopped in the room where the air conditioner is installed is the smallest. In this case, when the air conditioner is operated, the sound sensor detects sounds such as the sound of the air conditioner itself and the sound of the circulating pump sound of the ornamental fish tank that emits sound even when there is no user. Further, when the air conditioner is stopped, sounds such as a circulating pump sound of a clock / aquarium fish tank that emits sound even when there is no user in the sound sensor are detected.

  Specifically, the detected value (referred to as the initial value) of the sound sensor for a predetermined time (1 minute in the embodiment) after starting the air conditioner or during the stop is compared with a reference value. When the air conditioner is installed and is the first operation or stop, the reference value is the sound sensor detection value at the time of operation or stop in the same environment recorded in the storage element of the control unit at the manufacturing stage. Use.

  When the reference value ≧ the initial value, the threshold value is not corrected. In many cases, the reference value <the initial value. In this case, when correcting the determination threshold from the result when the air conditioner is operated, and further, when the sampling result of the sound sensor indicates that the type of the sound source is the air conditioner itself, The threshold value for determining the type is corrected. If the sound sensor sampling result during this time indicates that the type of sound source is other than the air conditioner itself, it indicates that conversation other than the air conditioner itself or the sound of the television is detected, Since it is not a quiet operation, no correction is made.

  Further, when the determination threshold value is corrected based on the result of stopping the air conditioner, the threshold value for determining the type of the sound source is corrected when initial value ≦ reference value + standard environmental sound difference. Here, the standard environmental sound difference is a value indicating the range of variation in environmental sound, and is a value recorded in advance in the storage element of the control unit in the manufacturing stage. If the reference value + standard environmental sound difference <initial value, the sound sensor sampling result during this time indicates that conversations other than the air conditioner itself, TV sound, etc. have been detected, and the operation is quiet. Because it is not, correction is not performed.

  In this way, by correcting the threshold value for determining the type of sound source, the type of sound source can be either a temperature-variable sound source type or a temperature-invariant sound source type according to the sound environment of the room where the air conditioner is installed. Airflow can be determined appropriately, combined with the detection results of the infrared sensor, to accurately determine the amount of activity of the occupants and to increase and decrease the room temperature more appropriately while taking into account comfort through fine-tuned control. By controlling the harmony machine, it is possible to prevent wasteful use of energy and contribute to energy saving.

  For this reason, it is possible to provide an air conditioner that appropriately saves indoor conditions with appropriate correction according to the environmental noise in the room and saves power.

  Next, the operation of the pyroelectric infrared sensor will be described with reference to FIG. FIG. 27 is an explanatory diagram of reaction detection category determination.

  The pyroelectric infrared sensor 17 together with the Fresnel lens 17a captures changes in the amount of infrared light from the room. When there is active movement in the room, the amount of response is large, and when it is quiet, the amount of reaction is small. Using this, the signal from the pyroelectric infrared sensor 17 is amplified through a band-pass filter that extracts the movement of a person, digitized, and transmitted to a microcomputer built in the control unit.

  The microcomputer samples this digital signal at a predetermined sampling period (10 ms in the embodiment) for a sampling period (60 seconds in the embodiment), calculates the ratio of the reaction detection data in the sampled data, and calculates the reaction detection ratio Px. Get.

  When the reaction detection ratio Px is less than the static determination threshold value Pb for determining whether or not the amount of indoor motion is small, the reaction detection category is classified as reaction static. Next, when the reaction detection ratio Px is equal to or greater than the movement determination threshold Pv for determining whether the amount of indoor movement is large, the reaction detection category is classified as strong reaction. When the reaction detection ratio Px is equal to or greater than the static determination threshold value Pb and less than the motion determination threshold value Pv, the reaction detection category is classified as a reaction.

  Next, a method of subdividing and determining the amount of activity using a combination of a pyroelectric infrared sensor and a sound sensor will be described with reference to FIG. FIG. 28 is a combination activity amount determination diagram.

  The activity amount determination unit subdivides the activity amount of the occupants as shown in FIG. 28 by combining the detection category of the reaction and the result of the sound source determination described above. Thus, even if the reaction detection category is the same, if the sound source is a large sound source group with warmth fluctuations accompanying the activities of the occupants, The amount of activity is judged larger than. As a result, the activity amount classification is changed from the conventional three steps to the fifth and sixth steps, so that the control can be made much finer than before.

  In the example of FIG. 28, the maximum amount of activity is a high temperature fluctuation large sound source group in which the detection category of the reaction by the pyroelectric infrared sensor is strong reaction and the type of sound source is a heavy household equipment group, conversation and light household equipment group. Activity in the case of a small source of warmth fluctuations consisting of the air conditioner itself and a group of broadcast receivers, with the active activity amount being the maximum and the minimum activity amount being the reaction detection category by the pyroelectric infrared sensor The amount is minimized.

  The other part of the matrix is that the amount of activity in the same reaction detection category in the matrix is a warm sound variation small sound source group ≦ warm sense variation large sound source group, and the amount of activity in the same sound source group is natural In particular, the amount of activity is determined so that the relationship of static response <under response <strong response is established.

  When the amount of activity of the occupants is small during cooling, the occupants are quiet and the metabolism is inactive, so the fever in the body decreases, and the thermal sensation of the occupants changes to the cold side, Even if the room temperature is slightly increased, the comfort remains within an acceptable range, and the room temperature is slightly increased, resulting in energy saving operation. When the amount of activity of the occupants during heating is large, the occupants are actively moving and the metabolism is active, so the fever in the body increases, and the thermal sensation of the occupants changes to the hot side, Even if the room temperature is lowered slightly, the comfort remains within an acceptable range, and the energy-saving operation is achieved as the room temperature is lowered slightly.

  Next, the adjustment of the intake air temperature will be described.

  Generally, in order to save energy by spot-air-conditioning around the air conditioner user, the temperature is detected at the position of the remote control placed near the user, and the surrounding space where the user is located is comfortable. To be done.

  At this time, as described above, the heating capacity and cooling capacity of the air conditioner are controlled in accordance with the intake air temperature and the set temperature of the air conditioner, but the air conditioner installed at a high place in the room. It is known that the intake air temperature is higher than the temperature of the living space from the floor in the room where the user is located to the height of the face. In order to correct this temperature difference, a predetermined value ( The air conditioner is controlled so that the intake air temperature approaches the additional set temperature, with the additional set temperature obtained by adding (temperature shift value) as the target temperature. As the predetermined value, a value of about −1 to 5 degrees is used although it differs depending on the structure of the air conditioner and the operation modes such as heating and cooling. However, the temperature of the living space is usually different between the center of the room and the window, and the user's location can be determined even if the temperature shift value is determined as described above and the intake air temperature is brought close to the additional set temperature. It often happens that it is not always comfortable. In such a case, the user needs to search and select a comfortable state by raising and lowering the set temperature.

  Nowadays, when the recommended temperature for air conditioning and heating is public, users need to be desperate for energy-saving operation of the air conditioner, and if the room is more comfortable than necessary, the operating time of the compressor of the air conditioner ， Power consumption increases and energy saving operation is not possible. For this reason, it becomes air conditioning while being driven by vague anxiety that the indoor state is not too comfortable, or even if it is changed to energy saving operation a little more, it will be within the allowable range of comfort, and the fruit of energy saving operation It is difficult to raise.

  When the room changes from a comfortable state to an uncomfortable state, the user can reset the air conditioner setting to a more comfortable direction when the user recognizes that the user is outside the acceptable comfort range. Each time, the settings of the air conditioner must be changed, which is cumbersome.

  On the other hand, on the way from an unpleasant state to a comfortable state, it is very difficult to have the recognition that it has become comfortable and has entered a comfortable range when it enters the comfortable range, In each case, changing the settings of the air conditioner itself is practically impossible.

  For this reason, after a long time in a comfortable state, the state that the energy-saving operation could be performed a little is repeated many times, and a method for solving this is awaited.

  In order to meet this challenge, in the present invention, the activity amount of the occupant is subdivided from the detection result of the pyroelectric infrared sensor and the sound sensor more than conventional, and according to the subdivided activity amount, An air conditioner that was practically impossible to achieve in practice, while taking into account the comfort of the occupants and finely correcting the above temperature shift value, eliminating the need for occupants to change the setting each time. Energy saving operation becomes possible.

  Next, the function of the radiation sensor will be described with reference to FIG. FIG. 29 is a radiation amount determination explanatory diagram, and FIG. 29A is a radiation amount determination block diagram.

  The radiation sensor uses a thermopile and measures the amount of infrared rays from the floor, walls, etc. in the room to obtain the radiation temperature. When indoor walls and floors are warmed by sunlight, or when the temperature deviates from room temperature with other air conditioners, etc., the thermal sensation of the occupants changes, so there is room for energy saving by changing the room temperature There is.

  The signal from the radiation sensor is appropriately amplified, passed through a bandpass filter, digitized, and transmitted to the microcomputer.

  The microcomputer samples this digital signal at a predetermined sampling period during the sampling interval, and calculates the temperature difference between the radiation temperature and the room temperature in combination with the signal from the room temperature sensor. This sampling and calculation are performed a plurality of times, and the average value of the plurality of times is calculated to obtain a radiation temperature difference.

  If the radiation temperature difference becomes negative during cooling, the temperature of the walls and floors is lower than room temperature, and the thermal sensation of the occupants changes to the cold side, so comfort is maintained even if the room temperature is raised slightly. It is possible to save energy by raising the room temperature slightly. If the radiation temperature difference becomes positive during heating, the temperature of the walls and floors is higher than room temperature, and the thermal sensation of the occupants changes to the hot side, so comfort is maintained even if the room temperature is lowered slightly. It is possible to save energy by reducing the room temperature slightly.

  As described above, the air conditioner of the embodiment has an infrared sensor that detects the amount of movement of the occupant or the amount of radiation from the floor or wall in the room, the room temperature setting unit, and the operation in addition to the above-described configuration. A control unit that controls the activity amount, and an activity amount determination unit that determines the amount of activity of the resident in accordance with the detection result of the infrared sensor and the detection result of the sound sensor, and the activity amount determination unit determines The target value determined based on the set temperature is changed based on the activity determination amount of the resident.

  Based on the detection results of the pyroelectric infrared sensor that detects the amount of movement of the sound sensor and the occupant or the thermopile that detects the amount of radiation from the floor or wall in the room, The indoor radiant temperature is estimated, and the target value of the air conditioning determined based on the set temperature is changed according to the estimation result to air-condition the room.

  In other words, the type of sound source is determined based on the detection result of the sound sensor, and the amount of activity of the occupant is determined by combining the determined type of sound source and the amount of movement of the occupant. , Large, medium, small, and minimum, the larger the activity amount, the smaller the value is the temperature shift value, and the smaller the activity amount is the temperature shift value.

  Thus, by adjusting, the higher the amount of activity during heating, the lower the intake air temperature is lower than the set temperature, and the lower the amount of activity during cooling, the higher the intake air temperature is higher than the set temperature. By carefully controlling the air conditioner with consideration for comfort, it is possible to accurately determine the amount of activity of people in the room without knowing the exact sound source, and to adjust the room temperature more appropriately By controlling the machine, it is possible to prevent wasteful use of energy and contribute to energy saving.

  In addition, the amount of activity of the occupants may be estimated based on the detection result of the sound sensor. For example, the amount of activity is classified into large, medium, and small according to the product of the sound volume and the number of appearances. The temperature shift value is determined, and the radiation temperature-indoor temperature is calculated based on the detection result of the thermopile. For example, the temperature difference is divided into positive temperature difference, small temperature difference, and negative temperature difference according to the value of the radiation temperature-indoor temperature. A value obtained by adding a smaller value as the radiation shift value to the temperature shift value as the room temperature is higher is defined as the temperature shift value.

  Thus, by adjusting, the higher the radiation temperature during heating, the lower the intake air temperature is lower than the set temperature, and the lower the radiation temperature during cooling, the higher the intake air temperature is higher than the set temperature. It is possible to save energy by controlling the air conditioner finely while considering comfort.

  In this way, by incorporating the radiation temperature that affects the thermal sensation into the control of the air conditioner, the air conditioner changes the radiation shift value according to the difference between the radiation temperature and the room temperature, while taking comfort into consideration. It is possible to achieve energy-saving operation by being controlled and performing finer control.

  For this reason, it is possible to provide an air conditioner that saves power while accurately estimating the amount of activity of the occupant from the detected sound information and information of the infrared sensor and taking comfort into consideration.

  Further, the air conditioner of the embodiment has a sound sensor, and is arranged in the axial direction of the cross flow fan inside the both ends of the blowout port and between the lowermost end of the blowout air channel upper wall and the suction port. A communication hole that communicates the sensor with the room, a pyroelectric infrared sensor that detects the amount of movement of the occupant or a thermopile that detects the amount of radiation from the floor or wall of the room, a room temperature setting unit, and operation A control unit to control, an activity amount determination unit that determines the amount of activity of a resident in accordance with the detection result of the pyroelectric infrared sensor or the detection result of the thermopile and the detection result of the sound sensor, The target value determined based on the set temperature is changed based on the activity determination amount of the occupant determined by the activity amount determination unit.

  Thereby, since the sound sensor for detecting the sound in the room is installed in the room at the peripheral position of the outlet, the sound in the room can be correctly grasped. Moreover, since it arrange | positions in the peripheral edge avoiding a blower outlet, it becomes difficult to receive the influence of the sound resulting from an airflow, and the sound carried on an airflow, and can detect the sound in a room more correctly.

  In addition, by combining the detection result of the sound sensor and the detection result of the pyroelectric infrared sensor or thermopile, as described above, the air conditioning is adjusted so that the room temperature can be raised and lowered more finely while considering comfort. By controlling the machine, it is possible to prevent wasteful use of energy and contribute to energy saving.

  For this reason, it is hard to be influenced by the blowing sound, can detect the sound in the room correctly, and the activity amount of the occupant is estimated in detail from the detected sound information and the information of the infrared sensor, and the comfort is taken into consideration. However, it is possible to provide an air conditioner that saves power.

  As described above, according to the air conditioner of the first aspect, the sound sensor is provided, the communication hole that communicates the sound sensor with the room is provided, and the position of the communication hole is set in the axial direction of the cross-flow fan. Inside the both ends of the air outlet, it is arranged between the lowermost end of the upper wall of the air outlet and the air inlet, and a filter is provided at the air inlet, and an automatic cleaning device for the filter is provided.

  Thereby, since the sound sensor for detecting the sound in the room is installed in the room at the peripheral position of the outlet, the sound in the room can be correctly grasped. Moreover, since it arrange | positions in the peripheral edge avoiding a blower outlet, it becomes difficult to receive the influence of the sound resulting from an airflow, and the sound carried on an airflow, and can detect the sound in a room more correctly.

  In addition, since an automatic cleaning device for the filter is provided to prevent the dust from accumulating on the filter, the surging phenomenon that tends to occur due to excessive accumulation of dust on the filter is less likely to occur, and the silent operation is continued. Sound can be detected without hindrance.

  For this reason, it is not easily affected by the blowing sound, the room sound can be detected correctly, and surging of the cross-flow fan is less likely to occur. Thus, it is possible to obtain an air conditioner that has a configuration suitable for the purpose of performing operational control by estimation.

  According to the air conditioner of claim 2, in addition to the above, an infrared sensor that detects the amount of movement of the occupant or the amount of radiation from the floor or wall of the room, a room temperature setting unit, and an operation A control unit that controls the activity amount, and an activity amount determination unit that determines the amount of activity of the resident in accordance with the detection result of the infrared sensor and the detection result of the sound sensor, and the activity amount determination unit determines The target value determined based on the set temperature is changed based on the activity determination amount of the resident.

  Based on the detection results of the pyroelectric infrared sensor that detects the amount of movement of the sound sensor and the occupant or the thermopile that detects the amount of radiation from the floor or wall in the room, The indoor radiant temperature is estimated, and the target value of the air conditioning determined based on the set temperature is changed according to the estimation result to air-condition the room.

  In other words, the type of sound source is determined based on the detection result of the sound sensor, and the amount of activity of the occupant is determined by combining the determined type of sound source and the amount of movement of the occupant. , Large, medium, small, and minimum, the larger the activity amount, the smaller the value is the temperature shift value, and the smaller the activity amount is the temperature shift value.

  Thus, by adjusting, the higher the amount of activity during heating, the lower the intake air temperature is lower than the set temperature, and the lower the amount of activity during cooling, the higher the intake air temperature is higher than the set temperature. By carefully controlling the air conditioner with consideration for comfort, it is possible to accurately determine the amount of activity of people in the room without knowing the exact sound source, and to adjust the room temperature more appropriately By controlling the machine, it is possible to prevent wasteful use of energy and contribute to energy saving.

  In addition, the amount of activity of the occupants may be estimated based on the detection result of the sound sensor. For example, the amount of activity is classified into large, medium, and small according to the product of the sound volume and the number of appearances. The temperature shift value is determined, and the radiation temperature-indoor temperature is calculated based on the detection result of the thermopile. For example, the temperature difference is divided into positive temperature difference, small temperature difference, and negative temperature difference according to the value of the radiation temperature-indoor temperature. A value obtained by adding a smaller value as the radiation shift value to the temperature shift value as the room temperature is higher is defined as the temperature shift value.

  Thus, by adjusting, the higher the radiation temperature during heating, the lower the intake air temperature is lower than the set temperature, and the lower the radiation temperature during cooling, the higher the intake air temperature is higher than the set temperature. It is possible to save energy by controlling the air conditioner finely while considering comfort.

  In this way, by incorporating the radiation temperature that affects the thermal sensation into the control of the air conditioner, the air conditioner changes the radiation shift value according to the difference between the radiation temperature and the room temperature, while taking comfort into consideration. It is possible to achieve energy-saving operation by being controlled and performing finer control.

  For this reason, it is possible to obtain an air conditioner that saves power while accurately estimating the amount of activity of the occupants from the detected sound information and information of the infrared sensor and taking comfort into consideration.

  According to the air conditioner of claim 3, the air conditioner has a sound sensor, and is arranged between the lower end of the upper wall of the air outlet and the inlet in the axial direction of the cross flow fan, inside the both ends of the outlet. A communication hole that communicates the sound sensor with the room, a pyroelectric infrared sensor that detects the amount of movement of the occupant or a thermopile that detects the amount of radiation from the floor or wall of the room, and a room temperature setting unit A control unit that controls driving; and an activity amount determination unit that determines an activity amount of the occupant according to the detection result of the pyroelectric infrared sensor or the detection result of the thermopile and the detection result of the sound sensor. And a target value determined based on the set temperature is changed based on the activity determination amount of the occupant determined by the activity amount determination unit.

  Thereby, since the sound sensor for detecting the sound in the room is installed in the room at the peripheral position of the outlet, the sound in the room can be correctly grasped. Moreover, since it arrange | positions in the peripheral edge avoiding a blower outlet, it becomes difficult to receive the influence of the sound resulting from an airflow, and the sound carried on an airflow, and can detect the sound in a room more correctly.

  In addition, by combining the detection result of the sound sensor and the detection result of the pyroelectric infrared sensor or thermopile, as described above, the air conditioning is adjusted so that the room temperature can be raised and lowered more finely while considering comfort. By controlling the machine, it is possible to prevent wasteful use of energy and contribute to energy saving.

  For this reason, it is hard to be influenced by the blowing sound, can detect the sound in the room correctly, and the activity amount of the occupant is estimated in detail from the detected sound information and the information of the infrared sensor, and the comfort is taken into consideration. However, an air conditioner that saves power can be obtained.

  According to the air conditioner of claim 4, a sound source type determination threshold value for determining the sound source type is provided based on the detection result of the sound sensor, and the air conditioner is quietly installed in the room where the air conditioner is installed. A threshold correction unit that corrects the determination threshold according to a detection result (initial value) of the sound sensor during a reference environmental sound measurement period in which the sound sensor measures or measures a reference environmental sound. The activity amount determination unit determines the type of the sound source according to the determination threshold corrected by the threshold correction unit, and determines the activity amount of the occupant according to the determined type of the sound source and the detection result of the infrared sensor. judge.

  Thereby, it is possible to know the detection result of the sound sensor in a state where the sound that can be realized when the air conditioner is operated or stopped in the room where the air conditioner is installed is the smallest. In this case, when the air conditioner is operated, the sound sensor detects sounds such as the sound of the air conditioner itself and the sound of the circulating pump sound of the ornamental fish tank that emits sound even when there is no user. Further, when the air conditioner is stopped, sounds such as a circulating pump sound of a clock / aquarium fish tank that emits sound even when there is no user in the sound sensor are detected.

  Specifically, the detected value (referred to as the initial value) of the sound sensor for a predetermined time (1 minute in the embodiment) after starting the air conditioner or during the stop is compared with a reference value. When the air conditioner is installed and is the first operation or stop, the reference value is the sound sensor detection value at the time of operation or stop in the same environment recorded in the storage element of the control unit at the manufacturing stage. Use.

  When the reference value ≧ the initial value, the threshold value is not corrected. In many cases, the reference value <the initial value. In this case, when correcting the determination threshold from the result when the air conditioner is operated, and further, when the sampling result of the sound sensor indicates that the type of the sound source is the air conditioner itself, The threshold value for determining the type is corrected. If the sound sensor sampling result during this time indicates that the type of sound source is other than the air conditioner itself, it indicates that conversation other than the air conditioner itself or the sound of the television is detected, Since it is not a quiet operation, no correction is made.

  Further, when the determination threshold value is corrected based on the result of stopping the air conditioner, the threshold value for determining the type of the sound source is corrected when initial value ≦ reference value + standard environmental sound difference. Here, the standard environmental sound difference is a value indicating the range of variation in environmental sound, and is a value recorded in advance in the storage element of the control unit in the manufacturing stage. If the reference value + standard environmental sound difference <initial value, the sound sensor sampling result during this time indicates that conversations other than the air conditioner itself, TV sound, etc. have been detected, and the operation is quiet. Because it is not, correction is not performed.

  In this way, by correcting the threshold value for determining the type of sound source, the type of sound source can be either a temperature-variable sound source type or a temperature-invariant sound source type according to the sound environment of the room where the air conditioner is installed. Airflow can be determined appropriately, combined with the detection results of the infrared sensor, to accurately determine the amount of activity of the occupants and to increase and decrease the room temperature more appropriately while taking into account comfort through fine-tuned control. By controlling the harmony machine, it is possible to prevent wasteful use of energy and contribute to energy saving.

  For this reason, it is possible to obtain an air conditioner that saves power by appropriately grasping the indoor situation with appropriate correction according to the environmental noise in the room.

  According to the air conditioner of the fifth aspect, the sound sensor and the pyroelectric infrared sensor or the thermopile are mounted on, attached to, or stored in the same substrate, sensor base, or case.

  Thereby, the wiring which connects each sensor and a control part is simplified, and cost is reduced. In addition, because each sensor is located at almost the same location on the air conditioner, the area detected by each sensor is almost the same, and each sensor detects information about this almost same detection area almost simultaneously according to its characteristics. Therefore, the state of the detection area can be grasped more accurately.

  For this reason, it is suitable for resource saving, cost is reduced, the state of a detection area can be grasped | ascertained more correctly, and the air conditioner which air-conditions a room appropriately can be obtained.

  According to the air conditioner of the sixth aspect, the sound sensor and the pyroelectric infrared sensor or thermopile are arranged across the outlet center in the crossflow fan axial direction.

  As a result, each sensor (hereinafter referred to as a sensor group) mounted on the same substrate is disposed at a position near the center of the outlet, so that information on the range in which the occupants are usually present can be obtained. The information in the room can be collected skillfully.

  In addition, when the air conditioner is installed at the corner where the walls meet, the detection accuracy of each sensor may be deteriorated due to the sound reflected by the adjacent wall and the influence of infrared rays, but from the adjacent wall to the sensor group. Since the distance can be secured at least about half the long side dimension of the air conditioner outlet, it is possible to suppress the deterioration of the detection accuracy of the sensor group, and the response when installed in the corner of the room, The bad influence by reflection etc. can be reduced.

  In addition, when the sensor group is arranged from the short side of the outlet, another sensor is added to compensate for the effects of reflection and reflection as described above, or the sensor is adjusted according to the installation position of the air conditioner. However, by arranging the sensor group near the center of the outlet, it becomes unnecessary to adjust these additional sensors and sensors, and the cost can be reduced.

  Even if the above-mentioned surging phenomenon occurs unexpectedly, the surging phenomenon starts at the blade tip of the cross-flow fan, so it is located away from the surging part and close to the center of the outlet. The effect on the sound sensor is small.

  For this reason, it is possible to efficiently collect necessary information in the room with a small number of sensors and obtain an air conditioner that is appropriately controlled.

  According to the air conditioner of claim 7, the maximum value of the mutual distance between the sound sensor and the pyroelectric infrared sensor or the center of the thermopile is a third order with the axial direction of the crossflow fan as the X coordinate axis. When expressed in original rectangular coordinates, the value of the X coordinate is larger than the values of the other coordinate axes.

  As a result, the sound sensor, pyroelectric infrared sensor, and thermopile are arranged long in the axial direction of the cross-flow fan, and fit comfortably in the elongated space between the outlet and the inlet.

  For this reason, the air conditioner which can utilize an empty space effectively and the enlargement of a housing | casing is suppressed can be obtained.

  The air conditioner according to claim 8 includes a shielding member that makes the sound sensor, pyroelectric infrared sensor, or thermopile difficult to see.

  As a result, when the air conditioner is stopped, the sound sensor or the infrared sensor can be hidden by the shielding member to provide a clean design without extra unevenness, and the interior atmosphere is not disturbed.

  For this reason, the air conditioner which does not disturb the interior atmosphere when not in use can be obtained.

  According to the air conditioner of the ninth aspect, the shaft of the cross flow fan and the longitudinal direction of the outlet are arranged in the horizontal direction, and the shielding member moves in conjunction with the vertical wind direction plate.

  Thereby, this invention can be employ | adopted for the wall-hanging type indoor unit which occupies many with a home air conditioner, and the effect can be exerted on a wide range of air conditioners.

  In this way, by interlocking with the vertical wind direction plate, the front vertical wind direction plate, the rear vertical wind direction plate, and the movable panel are controlled by the control unit as shown in FIG. 2 when the operation is stopped without using the sound sensor and infrared sensor. Since the air outlet and the front air suction part are controlled to close, the front upper and lower wind direction plates are rotated and stored in front of the auxiliary wind direction plate storage unit, and the sound sensor, infrared sensor, and air path auxiliary wind direction plate are stored. The storage part is shielded and the outlet is closed in cooperation with the rear vertical wind direction plate.

  At this time, the outer wind direction surface of the front vertical wind direction plate is a curved surface having a smooth large curvature so as to match the outer shape of the air conditioner. By doing so, the front vertical airflow direction plate and the rear vertical airflow direction plate can be continuously and smoothly formed with the outer surface of the airflow surface as the outer surface. Thus, when the sound sensor is not used, a soft and calm appearance without unnecessary unevenness is obtained, and the indoor atmosphere is not disturbed.

  For this reason, the air conditioner which does not disturb the interior atmosphere when not in use can be obtained.

  Moreover, according to the air conditioner of Claim 10, the said shielding member is comprised by a part of up-down wind direction board.

  As a result, by using the front vertical wind direction plate as a shielding member, a dedicated shielding mechanism and shielding member driving unit are not required, saving resources and reducing mass and cost. In addition, dedicated shielding member driving software is not required, and the development cost can be reduced.

  For this reason, it is suitable for resource saving, cost can be reduced, and the air conditioner which sends the airflow air-conditioned according to the position of the occupant at the time of use can be obtained.

  According to the air conditioner of the eleventh aspect, when the sound sensor, pyroelectric infrared sensor or thermopile is not used, the sound sensor, pyroelectric infrared sensor or thermopile is difficult to see from the room.

  As a result, when the sound sensor is not in use, such as when it is stopped, the outlet is covered with the vertical wind direction plate, the sound sensor is hidden, the unevenness is made inconspicuous as much as possible, and the design blends with the wall, and in the indoor unit Prevent dust from entering.

  For this reason, when the sound sensor is not used at the time of stopping or the like, the air conditioner melts into the atmosphere of the room and does not disturb the atmosphere of the interior, and an air conditioner excellent in appearance when not in use can be obtained.

  According to the air conditioner of claim 12, the upper and lower wind direction plates are composed of a rear upper and lower wind direction plate and a front upper and lower wind direction plate serving as the shielding member, and the front upper and lower wind direction plates are opaque and opaque. Forming part.

  Thus, when the front vertical wind direction plate that covers the lower part of the front surface so as to fit into the housing is opened, the wind direction is favorably deflected. However, even if the tip portion projects forward, the tip portion is formed transparent, so that it can be seen through and the feeling of pressure can be eased.

  For this reason, the air conditioner which controls a wind direction favorably can be obtained, reducing the feeling of pressure at the time of the movement of a front part upper and lower wind direction board.

  According to the air conditioner of the thirteenth aspect, when the operation is stopped, the sound sensor, pyroelectric infrared sensor, or thermopile is made difficult to see in the opaque portion, and the internal display portion is covered with the transparent portion.

  Thereby, when the air conditioner is stopped, the sound sensor or the infrared sensor is concealed by the opaque part of the front upper and lower wind direction plates serving as a shielding member, so that it is possible to provide a clean design without extra unevenness, The atmosphere is not disturbed.

  In addition, the internal display is covered with a transparent part, but when the operation is stopped, the front vertical wind direction plate rises to an angle close to vertical so that it fits into the housing, so it looks up from below like a wall-mounted air conditioner Sometimes, as long as the indicator light of the sensor module is not lit, the reflection on the surface of the transparent part has a strong influence and the inner display part of the back part becomes invisible, and as above, a clean design can be achieved. Will not disturb the atmosphere.

  In addition, even if the front upper and lower wind direction plates are closed, the operation display can be confirmed if the indicator light on the sensor module is lit.In order to prevent cool air, such as at the start of heating operation, until the temperature of the heat exchanger rises The operating state can be correctly confirmed even during preheating operation in which the fan is not operated with the wind direction plate closed.

  For this reason, when not in use, an air conditioner can be obtained that does not disturb the atmosphere of the interior and can correctly check the operation state even when the wind direction plate is closed.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Indoor unit 5 Remote control 6 Outdoor unit 8 Connection piping 10 Control part 11 Room temperature sensor 12 Humidity sensor 13 Remote control ambient temperature sensor 14 Remote control position sensor 15 Calendar information 16 Sensor module 17 Pyroelectric infrared sensor 17a Fresnel lens 17b Electric cover 18 Radiation sensor (thermopile)
19 sound sensor 20 housing 21 housing base 22 internal display portion 22a display opening 22b display window 23 decorative frame 24 internal decorative surface 24a recess 24b communication hole 24c pyroelectric opening 24d radiation opening 25 front panel 27 air inlet port 29 air outlet port 33 Indoor heat exchanger 35 Dew tray 37 Drain pipe 230 Cleaning mechanism 231, 231 ′ Filter 232, 232 ′ Filter frame 233 Sweep mechanism 234 Guide frame 235, 235 ′ Rail 236 Dust 237 Rack 242 Moving motor 243 Propulsion shaft 244 Screw 245 Bearing 251 Movable panel 261 Carriage 262, 262 ′ Brush support frame 267, 267 ′ Brush 268, 268 ′ Brush press 269 Hair bundle 270, 270 ′ Air suction part 280, 280 ′ Dust collection part 290 Blowing air path 290a Blowing air path upper wall 290b Auxiliary Toward the plate accommodating section 290c wind path wall lowermost 291 front flapping 291a transparent member 291b opaque member 291c base portion 291d auxiliary louvers 291e arm 291f bearing 292 rear vertical airflow direction plate 295 louver 311 blower (cross flow fan)
313 Blower motor 396 Transmission / reception unit 397 Display unit 397a Indicator light 900 Indoor BHs Upper limit number of conversation thresholds BHt in low frequency band Upper limit number threshold BLs of broadcast receiving device in lower frequency band Lower limit number of conversation thresholds BLt in lower frequency band Lower limit frequency threshold BP of broadcast receiving device in low frequency band Ratio of frequency of detection in low frequency band BPa Air conditioner determination threshold BPh in low frequency band Heavy household equipment determination threshold BPn in low frequency band Arbitrary sampling times Ratio of number of detections in high frequency band BPt Broadcast receiving device determination threshold BWc in low frequency band Heavy housework device determination width HHs in low frequency band Upper limit number of conversations threshold HHt in high frequency band In high frequency band Upper limit frequency threshold HLs of broadcast receiving device Lower limit frequency threshold HLt of conversation in a high frequency band Broadcast reception in a high frequency band Lower limit frequency threshold HP of the communication equipment Ratio of the number of detections in the high frequency band HPa Air conditioner judgment threshold HPh in the high frequency band Heavy household equipment judgment threshold HPn in the high frequency band HPn in the low frequency band of any sampling frequency Percentage of detections HPt Broadcast receiving device judgment threshold in high frequency band HWc Heavy household equipment judgment width in high frequency band m Sampling number

Claims (12)

A sound sensor, a communication hole that communicates between the sound sensor and the interior of the room, and is located between the lowest end of the blower air channel upper wall and the suction port in the axial direction of the crossflow fan, and the suction port. A filter located in the room, an infrared sensor for detecting the amount of movement of the occupants or the amount of radiation from the floor or wall of the room, a setting unit for room temperature, a control unit for controlling operation, and detection of the infrared sensor An activity amount determination unit that determines the amount of activity of the resident in accordance with the result and the detection result of the sound sensor ;
The activity amount determination unit determines the activity amount of the occupants by dividing the detection result of the infrared sensor into a plurality of stages based on the detection result of the sound sensor,
An air conditioner that changes a target value determined based on a set temperature based on an activity amount of a resident determined by the activity amount determination unit . In the axial direction of the cross-flow fan, the sound sensor is disposed between the lower end of the upper wall of the blowing air passage and the suction opening inside the both ends of the blowing opening, and a communication hole that communicates the sound sensor with the room; A pyroelectric infrared sensor for detecting the amount of movement of a thermopile or a thermopile for detecting the amount of radiation from an indoor floor or wall; a room temperature setting unit; a control unit for controlling operation; and the pyroelectric infrared sensor. detection result or and an activity amount determining unit determines the amount of activity of occupants according to the thermopile detection result and the sound sensor detection result,
The activity amount determination unit determines the activity amount of the occupants by dividing the detection result of the infrared sensor into a plurality of stages based on the detection result of the sound sensor,
An air conditioner that changes a target value determined based on a set temperature based on the activity determination amount of the occupant determined by the activity amount determination unit. In the axial direction of the cross-flow fan, the sound sensor is disposed between the lower end of the upper wall of the blowing air passage and the suction opening inside the both ends of the blowing opening, and a communication hole that communicates the sound sensor with the room; A pyroelectric infrared sensor for detecting the amount of movement of a thermopile or a thermopile for detecting the amount of radiation from an indoor floor or wall; a room temperature setting unit; a control unit for controlling operation; and the pyroelectric infrared sensor. An activity amount determination unit that determines the amount of activity of a resident in accordance with a detection result or a detection result of the thermopile and a detection result of the sound sensor;
Based on the activity determination amount of the occupant determined by the activity amount determination unit, the target value determined based on the set temperature is changed,
Based on the detection result of the sound sensor, a sound source type determination threshold for determining the type of the sound source is provided, and the sound sensor is operated or stopped in a quiet state in the room where the air conditioner is installed. A threshold correction unit that corrects the determination threshold according to a detection result of the sound sensor in a reference environmental sound measurement period for measuring sound, and the activity amount determination unit sets the determination threshold corrected by the threshold correction unit. Accordingly, an air conditioner that determines the type of sound source and determines the amount of activity of the occupant according to the determined type of sound source and the detection result of the infrared sensor. The air conditioner according to any one of claims 1 to 3 , wherein the sound sensor and the pyroelectric infrared sensor or thermopile are mounted on, attached to, or stored in the same substrate, sensor base, or case. 5. The air conditioner according to claim 4 , wherein the sound sensor and the pyroelectric infrared sensor or the thermopile are arranged across the center of the outlet in the crossflow fan axial direction. 5. The air conditioner according to claim 4 , wherein the maximum value of the mutual distance between the sound sensor and the pyroelectric infrared sensor or the center portion of the thermopile is expressed in three-dimensional rectangular coordinates with the axial direction of the crossflow fan as the X coordinate axis. When expressed, an air conditioner in which the value of the X coordinate is larger than the values of the other coordinate axes. 4. The air conditioner according to claim 1 , further comprising a shielding member that makes the sound sensor, pyroelectric infrared sensor, or thermopile difficult to see. 8. The air conditioner according to claim 7 , wherein the shaft of the cross-flow fan and the longitudinal direction of the outlet are arranged in a horizontal direction, and the shielding member moves in conjunction with the vertical wind direction plate. 9. The air conditioner according to claim 8 , wherein the shielding member is constituted by a part of an up / down wind direction plate. The air conditioner according to claim 7 , wherein the sound sensor, pyroelectric infrared sensor, or thermopile is difficult to see from the room when the sound sensor, pyroelectric infrared sensor, or thermopile is not used. 10. The air conditioner according to claim 9 , wherein the upper and lower wind direction plates include a rear upper and lower wind direction plate and a front upper and lower wind direction plate that serves as the shielding member, and air that forms a transparent portion and an opaque portion on the front upper and lower wind direction plate. Harmony machine. 12. The air conditioner according to claim 11 , wherein when the operation is stopped, the sound sensor, pyroelectric infrared sensor, or thermopile is made invisible at the opaque portion, and the internal display portion is covered by the transparent portion.

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