WO2015181950A1 - Air cleaner - Google Patents
Air cleaner Download PDFInfo
- Publication number
- WO2015181950A1 WO2015181950A1 PCT/JP2014/064419 JP2014064419W WO2015181950A1 WO 2015181950 A1 WO2015181950 A1 WO 2015181950A1 JP 2014064419 W JP2014064419 W JP 2014064419W WO 2015181950 A1 WO2015181950 A1 WO 2015181950A1
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- WIPO (PCT)
- Prior art keywords
- person
- air
- wind direction
- wind
- air cleaner
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
Definitions
- the present invention relates to an air cleaner that removes dust from inhaled air and blows out purified air.
- Patent Document 1 discloses an air purifier capable of changing the direction of an intake port. More specifically, this air purifier is equipped with a sensor that scans the room to detect a person. Then, the main body is rotated so that the intake port arranged on the front surface of the main body of the air cleaner faces the direction of the person detected by this sensor.
- the above-described conventional air purifier is configured to positively inhale and clean the air around the person by directing the intake port arranged on the front of the main body of the air cleaner in the direction in which the person exists. ing.
- the wind speed of the air sucked into the air cleaner is slower than the wind speed of the air blown out from the air cleaner.
- the air around the person cannot be efficiently sucked only by the control in the intake direction in which the intake port is directed in the direction in which the person exists.
- since the direction of the blowing wind blown from an air cleaner is not considered, there exists a possibility that a blowing wind may hit a person directly and may give a person discomfort.
- the present invention has been made to solve the above-described problem, and is an air purifier capable of efficiently purifying air around a person without causing discomfort to the person in the room.
- the purpose is to provide.
- An air cleaner includes a casing having a suction port for sucking indoor air and a blow-out port for blowing out the air, and a blower for sucking air into the casing from the suction port and blowing out the air from the blow-out port.
- a person detecting means for estimating the direction in which the air is present, a control means for controlling the air blowing means and the wind direction varying mechanism, and the control means detects the maximum of the wind direction when a person in the room is detected by the person detecting means.
- a wind direction controller that is controlled so that the front-rear direction component of the wind direction vector at the wind speed direction points in the direction in which the person is present, and the total vector of all direction components of the wind direction vector is in the direction in which no person is present. Those that had.
- the longitudinal component of the wind direction vector at the maximum wind speed location of the wind direction is directed in the direction in which the person is present, and the total vector of the omnidirectional components of the wind direction vector is It is controlled to face no direction. This makes it possible to efficiently clean the air around the person without causing discomfort to the person in the room.
- FIG. 1 shows the operation state (a) of a movable louver and a rectification
- FIG. 1 shows the operation state (a) of a movable louver and a rectification
- FIG. 1 shows the operation state (a) of a movable louver and a rectification
- FIG. 1 shows the operation state (a) of a movable louver and a rectification
- FIG. 1 shows the operation state (a) of a movable louver and a rectification
- FIG. 1 shows the operation state (a) of a movable louver and a rectification
- FIG. 1 shows the operation state (a) of a movable louver and a rectification
- FIG. 1 shows the operation state (a
- FIG. 1 is a perspective view showing an air cleaner according to Embodiment 1 of the present invention.
- FIG. 2 is a longitudinal sectional view showing the air cleaner in FIG.
- the air cleaner 1 according to the present embodiment is configured as a floor-mounted air cleaner.
- the air purifier 1 includes a casing 2, a pedestal 3, a suction port 4, a blowout port 5, an air blowing unit 6, air paths 7 ⁇ / b> A and 7 ⁇ / b> B, a cleaning unit 8, a movable louver 9, a louver driving unit 10, an opening variable mechanism 11, an opening A drive unit 12, a rectification mechanism 13, a rectification drive unit 14, a horizontal rotation mechanism 15 and the like are provided.
- the casing 2 is formed, for example, in a substantially rectangular square tube shape, and is supported in a horizontally rotatable state by a pedestal 3 installed on the floor of the room. As shown in FIG. 2, the cleaning unit 8, the blowing unit 6, and the air passage 7 are sequentially arranged from the upstream side to the downstream side of the internal space of the casing 2 in the space from the inlet 4 to the outlet 5. ing.
- a portion of the side surface portion of the casing 2 that is disposed mainly facing the indoor space is referred to as a front portion, and a portion that faces the front portion is referred to as a back portion.
- the direction which the front part of the casing 2 faced is described as the front, the direction corresponding to the left and right sides of the casing 2 as viewed from the front is expressed as the left and right directions, and the vertical direction is also expressed as the up and down direction in some cases.
- the air cleaner 1 is installed on the floor surface at a position close to any wall of the room, for example, and is used in a state where the back surface portion of the casing 2 faces the wall surface and the front surface portion of the casing 2 faces the indoor space. Is done.
- the suction port 4 is an opening for sucking indoor air into the casing 2, and is provided, for example, in the front portion of the casing 2.
- the blower outlet 5 is an opening for blowing the air sucked into the casing 2 to the outside, and is constituted by, for example, two blower outlets 5 ⁇ / b> A and 5 ⁇ / b> B opened at the upper surface of the casing 2.
- the two outlets 5 ⁇ / b> A and 5 ⁇ / b> B extend in parallel with each other along the left-right direction of the casing 2.
- air outlets 5A and 5B may be simply referred to as “air outlet 5”.
- FIG. 2 shows a wind direction vector 50 at the maximum wind speed location of the blown air.
- the wind direction vector 50 is composed of a vertical direction vector 50a and a front-rear direction vector 50b, and a left-right direction vector 50c (not shown).
- the suction inlet 4 may be arrange
- blower outlet 5 may be arrange
- only one blower outlet 5 may be arrange
- three or more blower outlets 5 may be arrange
- the blower means 6 sucks air into the casing 2 from the suction port 4 and blows out the air from the blowout port 5.
- the fan 6A which is a main body portion of the apparatus and an electric motor 6B which rotates the fan 6A. And.
- the rotational speed of the fan 6A is controlled by the control means 23, and the air volume of the blown air is changed according to the rotational speed.
- two air blowing means 6 are arranged side by side in the up-down direction with their positions shifted in the front-rear direction.
- an air passage 7 is provided in the casing 2 for connecting the air blowing means 6 and the air outlet 5 and guiding the air blown from the air blowing means 6 to the air outlet 5.
- the air passage 7 is divided into a front air passage 7A and a rear air passage 7B by a partition wall 2A provided inside the casing 2.
- the two air passages 7A and 7B extend in the vertical direction inside the casing 2, and are arranged in parallel in the front-rear direction when viewed in a horizontal section, for example.
- the lower sides of the air passages 7A and 7B are connected to different air blowing means 6, and the upper sides of the air passages 7A and 7B are connected to the air outlets 5A and 5B, respectively. That is, the air purifier 1 reaches the blower outlet 5B from the first blower 6 via the air passage 7A to the blower outlet 5A and the other blower 6 via the air passage 7B. And the second air blowing system. In these air blowing systems, the air volume, the wind direction, and the wind speed can be controlled separately.
- the partition wall 2A is arranged inside the casing 2, and the two air passages 7A and 7B are formed in parallel in the front-rear direction.
- the two air blowing means 6 at least one air blowing means 6 located on the upper side in FIG. 2 is constituted by a motor built-in air blowing means in which a part of the motor 6B is embedded in the fan 6A. Has been. Thereby, the installation area of the air cleaner 1 can be reduced in size while efficiently forming two air blowing systems inside the casing 2, and a small and high-performance air cleaner 1 can be realized.
- the cleaning means 8 cleans the air that passes through the inside of the casing 2, and is provided between the suction port 4 and the air blowing means 6, for example.
- cleaning means removing contaminants such as dust, smoke, pollen, viruses, molds, fungi, allergens, and odor molecules floating in the air. Means the action of collecting, deactivating, adsorbing or decomposing these contaminants.
- the cleaning means 8 of this embodiment is a device capable of such cleaning, for example, a dust collection filter that collects dust in the air, a deodorization filter that adsorbs odor components, and a high voltage applied to the electrode. Thus, it is configured by a voltage application device that removes and decomposes contaminants, or a combination thereof.
- the cleaning means 8 is electrically connected to the control means 23 and controlled.
- the cleaning means 8 is composed of a member that cannot be electrically controlled, such as a deodorizing filter or a dust collection filter, and the cleaning means 8 and the control means 23 are not necessarily electrically connected.
- the cleaning means 8 is not always controlled by the control means 23. This description is not limited to the cleaning means 8 being controlled by electrical control, and is not limited to being controlled by the control means 23. Basically, if there is a function of purifying any substance that pollutes the air by means such as collection, inactivation, decomposition, etc., it shall fall within the category of the cleaning means 8.
- a dirt detector 20 for detecting the amount of contaminants sucked into the casing 2 is provided upstream of the cleaning means 8 in the air flow direction.
- the dirt detection device 20 is constituted by, for example, a dust sensor, a gas sensor, a wind speed sensor, or the like, or a composite sensor in which these sensors are combined. According to the dirt detection device 20, air is blown out in a specific direction by the air cleaner 1, and the amount of pollutants in the air returning from this direction is detected, so that the degree of air pollution in the specific direction is determined. Can be detected.
- the dirt detection device 20 constitutes a specific example of a dirt degree information detection unit that detects information serving as an index of the degree of dirt.
- FIG. 3 is an enlarged view of a main part in FIG. 1 showing operating states (a) and (b) of the movable louver and the rectifying mechanism.
- the movable louver 9 swings the direction of the blown air in the vertical direction, and is provided one at each of the outlets 5 ⁇ / b> A and 5 ⁇ / b> B of the casing 2.
- the movable louver 9 is formed of, for example, an elongated flat plate that extends in the left-right direction of the casing 2.
- the base end side of the movable louver 9 is attached to each blower outlet 5A, 5B via the louver drive part 10 provided in blower outlet 5A, 5B, respectively, and the front end side of the movable louver 9 is a louver drive part. 10 can swing up and down.
- the two movable louvers 9 are configured such that the direction of the air blown out from the outlets 5A and 5B can be individually changed. In the present embodiment, the case where the two movable louvers 9 are provided is illustrated, but the present invention may be configured so that only one or three or more movable louvers 9 are provided according to the number of the outlets 5. Good.
- the movable louver 9 swings in the vertical direction to swing the wind direction of the blown air in the vertical direction between the front and the upper according to the swing angle.
- the elevation angle of the wind direction is changed to an angle substantially equal to the elevation angle of the movable louver 9.
- the louver driving unit 10 includes a support shaft that supports the movable louver 9 so as to be swingable, and an actuator (not shown) that rotates the support shaft.
- the movable louver 9 and the louver drive unit 10 constitute a specific example of a wind direction variable mechanism capable of changing the wind direction of the blown air in the vertical direction.
- the opening variable mechanism 11 is provided, for example, at a position facing one movable louver 9 in the front-rear direction, and changes the opening area of the outlet 5 ⁇ / b> A in cooperation with the movable louver 9. is there.
- the opening variable mechanism 11 is not shown in order to clearly show a rectifying mechanism 13 described later.
- FIG. 1 and 3 the opening variable mechanism 11 is not shown in order to clearly show a rectifying mechanism 13 described later.
- the opening variable mechanism 11 is formed by, for example, an elongated flat plate extending in the left-right direction of the casing 2. A base end portion of the opening variable mechanism 11 is attached to the air outlet 5 ⁇ / b> A via an opening driving unit 12 having a configuration substantially similar to that of the louver driving unit 10. The tip of the opening variable mechanism 11 is swung in the front-rear direction by the opening driving unit 12 and displaced so as to approach and separate from the movable louver 9. Thereby, the opening variable mechanism 11 can increase / decrease the opening area of 5 A of blower outlets, and can change the wind speed of blowing air according to the said opening area.
- the opening variable mechanism 11 and the opening driving unit 12 constitute a specific example of the air blowing changing means capable of changing the wind speed of the blown air.
- the opening variable mechanism 11 may be disposed not on the outlet 5 but on one or both of the air passages 7A and 7B and change the opening area of the air passage 7 (that is, the flow passage area).
- the rectifying mechanism 13 adjusts the wind direction in the left-right direction while maintaining the elevation angle of the wind direction set by the movable louver 9.
- the rectifying mechanism 13 is formed of, for example, a substantially triangular (or fan-shaped) fin, protrudes from the wind receiving surface side of each movable louver 9, and has a plurality of intervals in the left-right direction. Are arranged.
- Each rectifying mechanism 13 swings in the left-right direction as shown in FIGS. 3A and 3B, and changes the direction of the blown air in the left-right direction according to the swing angle.
- the swinging operation of the rectifying mechanism 13 is executed by, for example, a rectifying drive unit 14 (shown only in FIG. 4) provided in the movable louver 9. That is, the rectification mechanism 13 and the rectification drive unit 14 constitute a specific example of a wind direction variable mechanism that can change the wind direction of the blown air in the left-right direction. In the present invention, the rectifying mechanism 13 is not necessarily provided. Further, for example, one rectifying mechanism 13 may be arranged only on both the left and right ends of the movable louver 9.
- the horizontal rotation mechanism 15 is provided between the casing 2 and the pedestal 3 and rotates the casing 2 on the pedestal 3 at least in the left-right direction. Since the direction of the blower outlet 5 changes in the horizontal direction together with the casing 2, the horizontal rotation mechanism 15 constitutes a specific example of a wind direction variable mechanism that can change the wind direction of the blown air in the left-right direction. Similarly, since the direction of the suction port 4 also changes in the horizontal direction together with the casing 2, the horizontal rotation mechanism 15 constitutes a specific example of the suction port horizontal rotation mechanism that rotates the suction port 4 in the horizontal direction. Yes.
- the first embodiment has a structure in which two fans are arranged in the vertical direction, so that it can be more easily formed into a square or a circle than a device with the same air volume driven by a single fan.
- the area is downsized.
- squares and circles can reduce the installation area required when rotating in the horizontal direction, and are optimal in operating the horizontal rotation mechanism 15. Thereby, even if it has the horizontal rotation mechanism 15, it is easy to install between furniture etc., and the user can rearrange freely according to the condition of a room, and the structure which has versatility is implement
- a human detection device 21 is provided on the upper front side of the casing 2.
- the human detection device 21 functions as a human detection unit that detects a person existing in the room.
- the human detection device 21 rotationally drives the infrared sensor 40 as a human detection sensor that detects a person using infrared rays and the direction of the infrared sensor 40 in the horizontal direction (that is, both sides in the left-right direction) with respect to the casing 2.
- a sensor operating unit 44 as a sensor horizontal rotation mechanism. Details of the human detection device 21 will be described later.
- FIG. 4 is a configuration diagram showing a control system of the air cleaner according to the first embodiment of the present invention.
- the air cleaner 1 includes a sensor system including an infrared sensor 40 and a dirt detection device 20, an operation unit 22 for operating the air cleaner 1, and a control unit 23 that controls the operating state of the air cleaner 1. ing.
- the operation unit 22 is operated when the user of the air purifier 1 performs various settings and switching of operation.
- the power switch for starting and stopping the air purifier 1 and the air purifier 1 And a display unit for displaying an operation state and the like.
- the operation unit 22 is connected to the control unit 23 in a state where bidirectional communication is possible.
- the control means 23 controls the operating state of the air purifier 1 and includes an arithmetic processing unit, an input / output port, a storage circuit, and the like (not shown). As shown in FIG. 4, a sensor system including an infrared sensor 40 and a dirt detection device 20 is connected to the input side of the control means 23. Connected to the output side of the control means 23 is an actuator including the air blowing means 6, the cleaning means 8, the louver driving section 10, the opening driving section 12, the rectifying driving section 14, the horizontal rotation mechanism 15, the sensor operating section 44, and the like. Yes. And the control means 23 operates the air cleaner 1 by controlling an actuator based on the output of a sensor system
- the air blowing means 6 and the cleaning means 8 are driven by the control means 23. Thereby, air is sucked into the inside from the suction port 4 of the casing 2, and this air is cleaned by the cleaning means 8. And the purified air reaches
- the control means 23 of the air cleaner 1 of the present embodiment uses the human detection device 21 to detect the direction of the person in the room and the height of the person, and to detect the detected person.
- Wind direction control is performed to drive the movable louver 9, the opening variable mechanism 11, the rectifying mechanism 13, the horizontal rotation mechanism 15, and the like so that the blowing air is blown into the overhead area.
- the configuration of the human detection device 21, human detection control, and wind direction control will be described in order.
- FIG. 5 is a cross-sectional view schematically showing the structure of the infrared sensor.
- FIG. 6 is a perspective view showing the arrangement of the light receiving elements constituting the infrared sensor and the detection range of each light receiving element.
- FIG. 7 is an explanatory diagram showing rotation operations (a), (b), and (c) of the infrared sensor by the sensor operating unit.
- the human detection device 21 includes the infrared sensor 40 and the sensor operating unit 44.
- the infrared sensor 40 detects infrared rays generated from an object to be detected, and includes a multi-element light receiving unit 41 composed of a plurality of light receiving elements 41a to 41h and a condensing lens 42 as shown in FIG. ing.
- FIG. 5 illustrates the case where the multi-element light receiving unit 41 is configured by eight light receiving elements 41a to 41h.
- the number of light receiving elements is not limited to eight, and the multi-element light receiving unit 41 may be configured by an arbitrary number of light receiving elements of 7 or less or 9 or more.
- Each of the light receiving elements 41a to 41h is a detection element that can individually perform infrared light reception and human detection, and is arranged, for example, in a straight line in the vertical direction.
- the infrared sensor 40 has a function of detecting the indoor temperature by dividing it into eight areas having different heights.
- the condensing lens 42 efficiently condenses infrared rays with respect to the multi-element light receiving unit 41, and is constituted by, for example, a convex lens.
- the condensing lens 42 may be arranged on the upper part of the multi-element light receiving unit 41 in the Z direction.
- the infrared sensor 40 detects the temperature of the object to be detected by the individual light receiving elements 41a to 41h, and outputs a signal corresponding to, for example, indoor thermal image data.
- FIG. 6 is a perspective view showing the arrangement and light distribution viewing angle of each light receiving element of the infrared sensor.
- the light distribution viewing angles 43a to 43h of the light receiving elements 41a to 41h are set as rectangular areas having the same size.
- the light distribution viewing angle 43a (43b to 43h) of one light receiving element 41a (which may be 41b to 41h) is set such that the vertical light distribution viewing angle in the vertical direction is set to 7 °, for example, and the horizontal light distribution in the horizontal direction.
- the viewing angle is set to 8 °.
- the total light distribution viewing angle 43 including the light distribution viewing angles 43a to 43h is set as an elongated area in the vertical direction, and the viewing angle upper limit 43max that is the upper limit of the light distribution viewing angle 43 and the lower limit of the light distribution viewing angle 43 are set. And a viewing angle lower limit of 43 min.
- the light distribution viewing angles 43a to 43h do not necessarily have the same shape and the same size, and the specific values of the vertical light distribution viewing angle and the horizontal light distribution viewing angle are also limited to the above examples. Is not to be done.
- the sensor operating unit 44 is configured to be able to rotate the direction of the infrared sensor 40 in the horizontal direction with respect to the casing 2.
- a stepping motor capable of accurately adjusting the rotational drive angle of the infrared sensor 40 is used as the sensor operating unit 44, and is configured to be controllable independently of the operation of the horizontal rotation mechanism 15 described above.
- FIGS. 7A and 7B are explanatory diagrams showing the rotation operation of the infrared sensor by the sensor operating unit, where FIG. 7A shows a case where the sensor is rotated to the right end, FIG. 7B shows a case where the sensor is rotated to the center, and ( c) shows the case where it is rotationally driven to the left end.
- the human detection device 21 first rotationally drives the direction (detection direction) of the infrared sensor 40 in the left-right direction by the sensor operating unit 44. More specifically, the direction of the infrared sensor 40 is rotationally driven from the right end portion shown in FIG. 7A to the left end portion shown in FIG. 7C via the central portion shown in FIG. Then, when reaching the left end portion shown in (c), the rotation direction is reversed and the left end portion shown in (c) is returned to the right end portion shown in (a) through the central portion shown in (b). By repeatedly performing such an operation, the human detection device 21 scans the indoor temperature detection target range in the left-right direction and detects temperatures in order.
- the control means 23 acquires the thermal image data of the indoor wall or floor using the human detection device 21, and detects a person in the room based on the thermal image data. More specifically, first, the control means 23 moves the sensor operating unit 44 in the left-right direction at a predetermined movable angle (here, 1.6 °). Thereby, the infrared sensor 40 is rotated by 1.6 °. Next, the infrared sensor 40 is stopped for a predetermined standby time (for example, 0.1 to 0.2 seconds). During this time, the thermal image data is detected by the eight light receiving elements 41 a to 41 h of the infrared sensor 40 and taken into the control means 23.
- a predetermined standby time for example, 0.1 to 0.2 seconds
- the control means 23 again moves the sensor operating unit 44 in the left-right direction by a movable angle (1.6 °). Then, the thermal image data is taken into the control means 23 by the same operation as described above. Such a process is performed at 94 points every 1.6 ° of movable angle.
- the movable range in the left-right direction of the infrared sensor 40 (that is, the angular range for rotational driving in the left-right direction) is about 150.4 °.
- the direction and height of the person appearing in the indoor space are detected by comparing the thermal image data for each time within the movable range in the left-right direction of the infrared sensor 40. can do.
- the thermal image data of the areas of the respective light distribution viewing angles 43a to 43h are respectively captured by the eight light receiving elements 41a to 41h of the infrared sensor 40.
- the height of the human body can be detected with high accuracy.
- the control unit 23 controls the sensor operating unit 44 independently of the operation of the horizontal rotation mechanism 15, it rotates the direction of the infrared sensor 40 in the left-right direction without affecting the wind direction control described later. Can do.
- the human detection device 21 is not necessarily configured by the infrared sensor 40, and can be a dirt sensor, a moving object sensor, a distance sensor, a humidity sensor, a sensor that can detect the direction and height of a person in the room. Or you may comprise by combining an illuminance sensor etc. or these sensors and the infrared sensor 40.
- FIG. 1 is not necessarily configured by the infrared sensor 40, and can be a dirt sensor, a moving object sensor, a distance sensor, a humidity sensor, a sensor that can detect the direction and height of a person in the room. Or you may comprise by combining an illuminance sensor etc. or these sensors and the infrared sensor 40.
- the dirt sensor (dust sensor) is composed of a semiconductor element, an optical element, etc., and detects the concentration of dust, smoke, pollen, etc. in the air.
- the distance sensor is composed of, for example, a non-contact sensor such as an ultrasonic sensor, an optical sensor, or an image recognition sensor, and detects the distance between the air cleaner 1 and the detection target object using sound waves or electromagnetic waves.
- Objects to be detected include indoor walls, ceilings, furniture, people, animals, and the like.
- the illuminance sensor detects the presence, movement, etc. of people and animals in the room based on the change in illuminance.
- the output of the humidity sensor is used when correcting the sensitivity of each sensor according to the humidity.
- the combination of each said sensor is only an example, and this invention is not limited to the human detection means by the combination of each said sensor.
- Wind direction control Next, the wind direction control executed by the control means 23 will be described.
- the control unit 23 performs wind direction control.
- a horizontal rotation angle ⁇ 1 necessary for directing the front portion of the air purifier 1 toward the person is calculated.
- the control means 23 rotates the casing 2 by the rotation angle ⁇ 1 by the horizontal rotation mechanism 15. Thereby, the blower outlet 5 will be in the state which faced the direction where a person exists in a horizontal direction. Further, at least the front-rear direction vector 50b of the wind direction vector 50 is in a state of facing the direction of the person.
- the elevation angle ⁇ 2 of the movable louver 9 in the vertical direction that is, the elevation angle ⁇ 2 of the wind direction is set so that the wind direction is directed to the air blowing area above the height of the person.
- the portions of the light receiving elements 41a to 41e are set as the blowing area.
- the elevation angle ⁇ 2 of the movable louver 9 capable of blowing air to the blowing area is calculated, and the movable louver 9 is driven. Thereby, a blowing wind blows on the head of the person who lives in the room.
- the vertical direction vector 50a of the wind direction vector 50 is set so as not to face the person, and the wind direction vector 50, which is the sum of the vector components 50a, 50b, 50c, does not face the person.
- the vertical direction vector 50a is moved so that the front-rear direction vector 50b is directed toward the person while the total wind direction vector 50 is not directed toward the person.
- both 50a and 50c may be changed. That is, it is important that the front-rear direction vector 50b is directed toward the person, but the wind direction vector 50 is not directed toward the person.
- the elevation angle ⁇ 2 of the movable louver 9 is defined by the number N of human body detection elements, which is the number of light receiving elements that have detected a human body among the light receiving elements 41a to 41h, and the airflow spread angle ⁇ 2 when the air is blown at the air volume Q and the wind speed V.
- the lower spread angle ⁇ 2 ⁇ (Q, V) and the tilt angle ⁇ 3 obtained by tilting the viewing angle lower limit 43 min from the horizontal to the downward direction can be determined by the following equation (1). ⁇ 2 ⁇ 7 ⁇ N ⁇ 3 + ⁇ 2 ⁇ (Q, V) (1)
- the elevation angle ⁇ 2 of the movable louver 9 may be a value (fixed value) on the right side of the above equation (1), or may be varied within a range that is not less than the value on the right side of the following equation (1).
- the movable louver 9 may be swung in the air blowing area.
- the control unit 23 While the air is being blown to the air blowing area above the person by the wind direction control, the control unit 23 always detects the degree of dirt of the air sucked from the suction port 4 using the dirt detection device 20. . And the control means 23 determines whether the detected stain
- the threshold value a value set in advance as a threshold value of the degree of contamination indicating that the air has been cleaned is used. As a result, when it is determined that the detected degree of dirt is equal to or less than the threshold value, it can be determined that the air in the current wind direction area has been sufficiently cleaned, and thus the wind direction control for the wind direction is terminated.
- control means 23 determines whether or not a person different from the person to whom the air is currently directed by the person detection control is present in the room. As a result, if it is determined that there is a person with a different condition from the previous time in the room, next, wind direction control for the person with the different condition is executed. Thereby, it can blow in order with respect to the direction of the person who is indoors.
- the horizontal rotation mechanism 15 is driven while the air is being blown to change the air direction of the blown air, and the dirt detection device 20 exceeds the threshold value. It is confirmed whether there is a wind direction in which the degree of contamination is detected. As a result, when there is a wind direction in which the degree of dirt is greater than the threshold value, second wind direction control is performed in which the blown air is intensively directed toward the wind direction. On the other hand, when there is no wind direction in which the degree of dirt is greater than the threshold value, the horizontal rotation mechanism 15 of the air cleaner 1 is returned to the initial position and the air volume is reduced. By performing such control, even in the case where there is no person in the room, the air in the area where the degree of contamination is large can be intensively cleaned.
- the wind direction is adjusted based on the direction and height of the person in the room detected by the person detection control. It is also assumed to move. Therefore, it is desirable that the person detection control is always operated to constantly monitor the movement of the person in the room, and when the person in the room moves, the air blowing area for the wind direction control is changed accordingly. .
- the degree of dirt when the air is blown in the direction of each person is detected using the dirt detection device 20, and the person with the larger degree of dirt detected is detected. It is desirable to preferentially blow in order from the direction.
- the air cleaner of the present embodiment it is possible to blow clean air blown from the outlet 5 directly in the direction of the person without directly hitting the person.
- the blowing air is high speed, an induced air flow is generated from the area where the person is present to the suction port 4 of the air cleaner 1.
- the blown air is purified air, an air flow is also generated due to a concentration gradient with the surroundings. Accordingly, it is possible to preferentially purify the surroundings of the person by effectively attracting the dust in the area where the person is present to the suction port 4 while suppressing the feeling of blowing given to the person.
- the horizontal wind mechanism 15 adjusts the horizontal wind direction
- the movable louver 9 adjusts the vertical wind direction.
- the wind direction can be adjusted in the left-right direction by the rectifying mechanism 13.
- the adjustment of the wind direction by the rectifying mechanism 13 makes it difficult to accurately blow air directly above a person, and a deviation in the left-right direction is likely to occur.
- the adjustment of the wind direction by the rectifying mechanism 13 is also characterized by a large pressure loss particularly when the air is blown to the left and right ends.
- the rectifying mechanism 13 has better control response than the horizontal rotation mechanism 15. For this reason, in the wind direction control in the left-right direction, the operations of the mechanisms may be appropriately combined in consideration of the mutual advantages of these mechanisms.
- the air flow spreading in the left-right direction in the room can be generated by directing the rectifying mechanism 13 in the left-right direction.
- the human detection control by the human detection device 21 is configured to operate separately from the wind direction control. For this reason, a person can be detected in a wide range without changing the wind direction. In addition, since it is possible to keep an eye on the person during the execution of the wind direction control, it is possible to flexibly cope with the movement of the person.
- the rotation driving of the casing 2 by the horizontal rotation mechanism 15 may be combined with the rotation driving of the infrared sensor 40 by the sensor operating unit 44. According to such an operation, since the infrared sensor 40 can be moved in two axes, images at the same location can be obtained from different directions. As a result, not only the direction of the person in the room and the height information thereof but also the position information can be acquired, so that further improvement in the accuracy of the wind direction control can be expected.
- the suction inlet 4 since the suction inlet 4 is arrange
- the suction inlet 4 is arrange
- positioned at the front of the casing 2 is also assumed. Therefore, in the case of such an aspect, the wind direction control can be executed by combining the operation of the rectifying mechanism 13 with the operation of the horizontal rotating mechanism 15. More specifically, the horizontal rotation mechanism 15 may control the suction port 4 in the direction in which the person is present, and the rectifying mechanism 13 may control the wind direction in the left-right direction in the direction in which the person is present. Thereby, even if it is a case where the suction inlet 4 is not arrange
- the air cleaner of the present embodiment is configured so that the dirt detection device 20 can detect the degree of dirt in the intake air. Even if the surroundings of a person in the room are purified, it cannot be said that the room has been cleaned if there is another source of contamination. In addition, when a person moves, comfort cannot be maintained unless the moving destination is purified. Interlocking between the dirt detection device 20 and the human detection device 21 is a method for solving these problems, and it is possible to maintain comfort even when a person moves by this operation. In other words, it is necessary to first detect people and clean the surroundings of people, but if the cleanliness of people's surroundings is improved from the specified state, it will turn to the direction where there are no people and detect dirt. It is desirable to be controlled so as to purify the entire space other than humans according to the value of the device 20.
- the human detection device 21 cannot detect a foot when a person is sitting on a chair or the like. Further, in the human detection device 21, for example, when a body is hidden in furniture, it is assumed that it is erroneously determined that there is no person. If there is such a false detection by the human detection device 21, there is a possibility that the intended air direction control is not performed and the air cleaning operation cannot be performed efficiently. Therefore, the air cleaner according to the first embodiment may be configured to include means for inputting room information about the floor plan of the house or an obstacle. More specifically, for example, room information acquisition means for inputting room information such as indoor furniture, the position of a window or door, or the size of a room is provided, and the wind direction in the wind direction control is corrected using the input information. It is good to do.
- the above-described room information acquisition means is not limited to a mode in which data is directly input, and for example, the person detection device 21 may be provided with an ultrasonic sensor or the like to sense floor plan information. Moreover, it may be configured to be able to link with an external device such as a smartphone or a personal computer by a known communication means, and the floor plan information may be acquired by communication from these external devices. Further, it is desirable that the communication means has a function capable of receiving sensing information, operation information, and position information from other products. Thereby, for example, it is possible to acquire human information obtained from a high position with an air conditioner and to find a person hidden in the furniture. In addition, it is possible to prevent erroneous detection by acquiring operation information or position information of a refrigerator, a vacuum cleaner, a microwave oven, a TV, or the like and grasping heat sources other than people in advance.
- Air purifier 2 casing, 2A partition, 3 base, 4 inlet, 5, 5A, 5B outlet, 6 blower means, 6A fan, 6B motor, 7, 7A, 7B air passage, 8 cleaner means, 9 Movable louver (wind direction variable mechanism), 10 louver drive unit (wind direction variable mechanism), 11 aperture variable mechanism, 12 aperture drive unit, 13 rectifier mechanism (wind direction variable mechanism), 14 rectifier drive unit (wind direction variable mechanism), 15 horizontal rotation Mechanism (wind direction variable mechanism), 20 dirt detection device (dirt degree information detection means), 21 human detection device (person detection means), 22 operation unit, 23 control means, 40 infrared sensor, 41 multi-element light receiving unit, 41a to 41h Light receiving element (detecting element), 42 condensing lens, 43, 43a to 43h, orientation viewing angle, 44 sensor operating part (sensor operating mechanism), 50 wind Vector, 50a vertical vector, 50b longitudinal direction vector, 50c left-right direction vector
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Provided is an air cleaner which can efficiently clean air around a person staying in a room without causing discomfort to the person. The air cleaner (1) is equipped with a casing (2), an air inlet (4), an air outlet (5), an air blowing means (6), a movable louver (9), a horizontal rotating mechanism (15), an infrared sensor (40), a control means (23) and the like. The control means (23) performs wind direction control of the blowout air blown out from the air outlet (5) by driving the movable louver (9) and the horizontal rotating mechanism (15). The wind direction control is carried out in such a manner that a front-back direction vector (50b) of a wind direction vector (50) is directed to the direction of the person, and the wind direction vector (50), which is the sum of vector components (50a, 50b, 50c), is not directed to the direction of the person. Preferably, the direction in which the person is present and the height of the person are detected by the infrared sensor (40), and the wind of the blowout air is directed toward the person in the horizontal direction and directed above the height of the person in the vertical direction.
Description
本発明は、吸込んだ空気から塵埃を除去し、清浄化した空気を吹出す空気清浄機に関する。
The present invention relates to an air cleaner that removes dust from inhaled air and blows out purified air.
従来、例えば特許文献1には、吸気口の向きを変更可能な空気清浄機が開示されている。より詳しくは、この空気清浄機には室内を走査して人を検知するセンサが搭載されている。そして、空気清浄機の本体正面に配置された吸気口がこのセンサが検知した人の方向を向くように本体が回転される。
Conventionally, for example, Patent Document 1 discloses an air purifier capable of changing the direction of an intake port. More specifically, this air purifier is equipped with a sensor that scans the room to detect a person. Then, the main body is rotated so that the intake port arranged on the front surface of the main body of the air cleaner faces the direction of the person detected by this sensor.
上述した従来の空気清浄機では、空気清浄機の本体正面に配置された吸気口を人が存在する方向に向けることにより、人の周囲の空気を積極的に吸込んで清浄化するように構成されている。しかしながら、空気清浄機に吸込まれる空気の風速は空気清浄機から吹出される空気の風速よりも遅い。このため、吸気口を人が存在する方向に向ける吸気方向の制御だけでは人の周囲の空気を効率よく吸込むことができないおそれがある。また、上記従来の技術では、空気清浄機から吹出される吹出風の方向を考慮していないため、吹出風が直接人にあたってしまい人に不快感を与えてしまうおそれがある。
The above-described conventional air purifier is configured to positively inhale and clean the air around the person by directing the intake port arranged on the front of the main body of the air cleaner in the direction in which the person exists. ing. However, the wind speed of the air sucked into the air cleaner is slower than the wind speed of the air blown out from the air cleaner. For this reason, there is a possibility that the air around the person cannot be efficiently sucked only by the control in the intake direction in which the intake port is directed in the direction in which the person exists. Moreover, in the said prior art, since the direction of the blowing wind blown from an air cleaner is not considered, there exists a possibility that a blowing wind may hit a person directly and may give a person discomfort.
本発明は、上述の課題を解決するためになされたもので、在室する人に対して不快感を与えることなく、人の周囲の空気を効率的に清浄化することが可能な空気清浄機を提供することを目的としている。
The present invention has been made to solve the above-described problem, and is an air purifier capable of efficiently purifying air around a person without causing discomfort to the person in the room. The purpose is to provide.
この発明に係る空気清浄機は、室内の空気を吸込む吸込口と当該空気を吹出す吹出口とを有するケーシングと、吸込口からケーシングの内部に空気を吸込み、当該空気を吹出口から吹出す送風手段と、ケーシングの内部を流れる空気を清浄化する清浄化手段と、吹出口から吹出す吹出し空気の風向を可変させる機能を有する風向可変機構と、人の居る方向を検出するまたは検出値によって人の居る方向を推定する人検出手段と、送風手段、及び風向可変機構を制御する制御手段とを備え、制御手段は、人検出手段により室内に居る人が検出されたときに、前記風向の最大風速箇所の風向ベクトルの前後方向成分は人の居る方向を向き、前記風向ベクトルの全方向成分の合計ベクトルは人の居ない方向を向くように、制御して成る風向制御機能を有したものである。
An air cleaner according to the present invention includes a casing having a suction port for sucking indoor air and a blow-out port for blowing out the air, and a blower for sucking air into the casing from the suction port and blowing out the air from the blow-out port. Means, a cleaning means for cleaning the air flowing inside the casing, a wind direction varying mechanism having a function of varying the wind direction of the blown-out air blown from the blowout port, A person detecting means for estimating the direction in which the air is present, a control means for controlling the air blowing means and the wind direction varying mechanism, and the control means detects the maximum of the wind direction when a person in the room is detected by the person detecting means. A wind direction controller that is controlled so that the front-rear direction component of the wind direction vector at the wind speed direction points in the direction in which the person is present, and the total vector of all direction components of the wind direction vector is in the direction in which no person is present. Those that had.
この発明によれば、室内に居る人が検出されたときに、風向の最大風速箇所の風向ベクトルの前後方向成分は人の居る方向を向き、風向ベクトルの全方向成分の合計ベクトルは人の居ない方向を向くように制御される。これにより、在室する人に対して不快感を与えることなく、人の周囲の空気を効率的に清浄化することが可能となる。
According to the present invention, when a person in the room is detected, the longitudinal component of the wind direction vector at the maximum wind speed location of the wind direction is directed in the direction in which the person is present, and the total vector of the omnidirectional components of the wind direction vector is It is controlled to face no direction. This makes it possible to efficiently clean the air around the person without causing discomfort to the person in the room.
以下、図面を参照してこの発明を実施するための形態について説明する。なお、各図中において、同一又は相当する部分には同一の符号を付して、重複する説明は適宜に簡略化ないし省略する。また、本発明は以下の実施の形態に限定されることなく、本発明の趣旨を逸脱しない範囲で種々変形することが可能である。
Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and overlapping description will be simplified or omitted as appropriate. The present invention is not limited to the following embodiments, and various modifications can be made without departing from the spirit of the present invention.
実施の形態1.
図1から図7を参照して、本発明の実施の形態1について説明する。図1は、本発明の実施の形態1による空気清浄機を示す斜視図である。また、図2は、図1中の空気清浄機を示す縦断面図である。これらの図に示すように、本実施の形態の空気清浄機1は、床面設置型の空気清浄機として構成されている。空気清浄機1は、ケーシング2、台座3、吸込口4、吹出口5、送風手段6、風路7A,7B、清浄化手段8、可動ルーバ9、ルーバ駆動部10、開口可変機構11、開口駆動部12、整流機構13、整流駆動部14、水平回転機構15等を備えている。Embodiment 1 FIG.
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an air cleaner according toEmbodiment 1 of the present invention. FIG. 2 is a longitudinal sectional view showing the air cleaner in FIG. As shown in these drawings, the air cleaner 1 according to the present embodiment is configured as a floor-mounted air cleaner. The air purifier 1 includes a casing 2, a pedestal 3, a suction port 4, a blowout port 5, an air blowing unit 6, air paths 7 </ b> A and 7 </ b> B, a cleaning unit 8, a movable louver 9, a louver driving unit 10, an opening variable mechanism 11, an opening A drive unit 12, a rectification mechanism 13, a rectification drive unit 14, a horizontal rotation mechanism 15 and the like are provided.
図1から図7を参照して、本発明の実施の形態1について説明する。図1は、本発明の実施の形態1による空気清浄機を示す斜視図である。また、図2は、図1中の空気清浄機を示す縦断面図である。これらの図に示すように、本実施の形態の空気清浄機1は、床面設置型の空気清浄機として構成されている。空気清浄機1は、ケーシング2、台座3、吸込口4、吹出口5、送風手段6、風路7A,7B、清浄化手段8、可動ルーバ9、ルーバ駆動部10、開口可変機構11、開口駆動部12、整流機構13、整流駆動部14、水平回転機構15等を備えている。
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an air cleaner according to
ケーシング2は、例えば略四角形の角筒状に形成され、部屋の床面に設置される台座3により水平方向に回転可能な状態で支持されている。ケーシング2の内部空間のうち、吸込口4から吹出口5に至る空間には、図2に示すように、清浄化手段8、送風手段6及び風路7が上流から下流に向けて順に配置されている。なお、以下の説明では、ケーシング2の側面部のうち、主として室内の空間に面して配置される部分を正面部と表記し、正面部と対向する部分を背面部と表記する。また、ケーシング2の正面部が面した方向を前方と表記し、前方からみたケーシング2の左右両側に対応する方向を左右方向と表記し、更に、場合によっては鉛直方向を上下方向と表記する。空気清浄機1は、例えば部屋の何れかの壁に近い位置で床面上に設置され、ケーシング2の背面部を当該壁面に向けると共にケーシング2の正面部を室内の空間に向けた状態で使用される。
The casing 2 is formed, for example, in a substantially rectangular square tube shape, and is supported in a horizontally rotatable state by a pedestal 3 installed on the floor of the room. As shown in FIG. 2, the cleaning unit 8, the blowing unit 6, and the air passage 7 are sequentially arranged from the upstream side to the downstream side of the internal space of the casing 2 in the space from the inlet 4 to the outlet 5. ing. In the following description, a portion of the side surface portion of the casing 2 that is disposed mainly facing the indoor space is referred to as a front portion, and a portion that faces the front portion is referred to as a back portion. Moreover, the direction which the front part of the casing 2 faced is described as the front, the direction corresponding to the left and right sides of the casing 2 as viewed from the front is expressed as the left and right directions, and the vertical direction is also expressed as the up and down direction in some cases. The air cleaner 1 is installed on the floor surface at a position close to any wall of the room, for example, and is used in a state where the back surface portion of the casing 2 faces the wall surface and the front surface portion of the casing 2 faces the indoor space. Is done.
吸込口4は、室内の空気をケーシング2の内部に吸込むための開口部であり、例えばケーシング2の正面部に設けられている。吹出口5は、ケーシング2の内部に吸込まれた空気を外部に吹出すための開口部であり、例えばケーシング2の上面部に開口した2個の吹出口5A,5Bにより構成されている。2個の吹出口5A,5Bは、ケーシング2の左右方向に沿って互いに並行に延びている。なお、以下の説明では、吹出口5A,5Bを特に区別しないときには、これらを単に「吹出口5」と表記する場合がある。また、吹出口5から吹出す空気は「吹出し空気」と表記する場合がある。なお、図2には吹出し空気の最大風速箇所の風向ベクトル50を示している。風向ベクトル50は鉛直方向ベクトル50aと前後方向ベクトル50b、図示はしていないが左右方向ベクトル50cの合成から成る。なお、図2の場合は吹出口5A、5Bの吹出し空気が合成されているため、風向ベクトル50は一か所として示しているが、吹出口5A、5Bそれぞれにおいて風向ベクトル50が存在する。また、本発明では、吸込口4を、ケーシング2の背面部、側面部、下面部等に配置してもよいし、吹出口5を、ケーシング2の正面部、側面部等に配置してもよい。さらに、ケーシング2には、1個のみの吹出口5を配置したり、3個以上の吹出口5を配置してもよい。即ち、吹出口5の位置又は個数は実施の形態1に限定されるものではない。
The suction port 4 is an opening for sucking indoor air into the casing 2, and is provided, for example, in the front portion of the casing 2. The blower outlet 5 is an opening for blowing the air sucked into the casing 2 to the outside, and is constituted by, for example, two blower outlets 5 </ b> A and 5 </ b> B opened at the upper surface of the casing 2. The two outlets 5 </ b> A and 5 </ b> B extend in parallel with each other along the left-right direction of the casing 2. In the following description, when the air outlets 5A and 5B are not particularly distinguished, they may be simply referred to as “air outlet 5”. Further, the air blown out from the blowout port 5 may be referred to as “blowout air”. FIG. 2 shows a wind direction vector 50 at the maximum wind speed location of the blown air. The wind direction vector 50 is composed of a vertical direction vector 50a and a front-rear direction vector 50b, and a left-right direction vector 50c (not shown). In the case of FIG. 2, since the blowing air from the outlets 5A and 5B is synthesized, the wind direction vector 50 is shown as one place, but the wind direction vector 50 exists at each of the outlets 5A and 5B. Moreover, in this invention, the suction inlet 4 may be arrange | positioned in the back surface part, side part, lower surface part, etc. of the casing 2, and the blower outlet 5 may be arrange | positioned in the front part, side part, etc. of the casing 2. Good. Furthermore, only one blower outlet 5 may be arrange | positioned in the casing 2, and three or more blower outlets 5 may be arrange | positioned. That is, the position or the number of the outlets 5 is not limited to the first embodiment.
送風手段6は、吸込口4からケーシング2の内部に空気を吸込んで当該空気を吹出口5から吹出すもので、装置の本体部分であるファン6Aと、ファン6Aを回転させる電動式のモータ6Bとを備えている。ファン6Aの回転数は、制御手段23により制御されるもので、当該回転数に応じて吹出し空気の風量が変更される。ケーシング2の内部には、図2に示すように、例えば2個の送風手段6が前後方向に位置をずらした状態で、上下方向に並べて配置されている。
The blower means 6 sucks air into the casing 2 from the suction port 4 and blows out the air from the blowout port 5. The fan 6A which is a main body portion of the apparatus and an electric motor 6B which rotates the fan 6A. And. The rotational speed of the fan 6A is controlled by the control means 23, and the air volume of the blown air is changed according to the rotational speed. In the casing 2, as shown in FIG. 2, for example, two air blowing means 6 are arranged side by side in the up-down direction with their positions shifted in the front-rear direction.
また、ケーシング2の内部には、送風手段6と吹出口5とを接続し、送風手段6から吹出された空気を吹出口5に案内する風路7が設けられている。風路7は、ケーシング2の内部に設けられた隔壁2Aにより、正面側の風路7Aと背面側の風路7Bとに分割されている。2つの風路7A,7Bは、ケーシング2の内部で上下方向に伸長し、例えば水平断面で見ると、前後方向に並列に配置されている。
Also, an air passage 7 is provided in the casing 2 for connecting the air blowing means 6 and the air outlet 5 and guiding the air blown from the air blowing means 6 to the air outlet 5. The air passage 7 is divided into a front air passage 7A and a rear air passage 7B by a partition wall 2A provided inside the casing 2. The two air passages 7A and 7B extend in the vertical direction inside the casing 2, and are arranged in parallel in the front-rear direction when viewed in a horizontal section, for example.
風路7A,7Bの下部側は、それぞれ異なる送風手段6に接続され、風路7A,7Bの上部側は、それぞれ吹出口5A,5Bに接続されている。即ち、空気清浄機1は、一方の送風手段6から風路7Aを介して吹出口5Aに到達する第1の送風系統と、他方の送風手段6から風路7Bを介して吹出口5Bに到達する第2の送風系統とを備えており、これらの送風系統では、風量、風向及び風速を別々に制御することができる。
The lower sides of the air passages 7A and 7B are connected to different air blowing means 6, and the upper sides of the air passages 7A and 7B are connected to the air outlets 5A and 5B, respectively. That is, the air purifier 1 reaches the blower outlet 5B from the first blower 6 via the air passage 7A to the blower outlet 5A and the other blower 6 via the air passage 7B. And the second air blowing system. In these air blowing systems, the air volume, the wind direction, and the wind speed can be controlled separately.
このように、実施の形態1では、ケーシング2の内部に隔壁2Aを配置し、2個の風路7A,7Bを前後方向に並列に形成している。また、2個の送風手段6のうち、少なくとも図2中の上側に位置する一方の送風手段6は、ファン6Aの内部にモータ6Bの一部が埋込まれたモータ内蔵型の送風手段により構成されている。これにより、ケーシング2の内部に2つの送風系統を効率よく形成しながら、空気清浄機1の設置面積を小型化することができ、小型で高性能な空気清浄機1を実現することができる。
Thus, in Embodiment 1, the partition wall 2A is arranged inside the casing 2, and the two air passages 7A and 7B are formed in parallel in the front-rear direction. Of the two air blowing means 6, at least one air blowing means 6 located on the upper side in FIG. 2 is constituted by a motor built-in air blowing means in which a part of the motor 6B is embedded in the fan 6A. Has been. Thereby, the installation area of the air cleaner 1 can be reduced in size while efficiently forming two air blowing systems inside the casing 2, and a small and high-performance air cleaner 1 can be realized.
清浄化手段8は、ケーシング2の内部を通過する空気を清浄化するもので、例えば吸込口4と送風手段6との間に設けられている。ここで、「清浄化」とは、例えば空気中に浮遊する塵埃、煙、花粉、ウイルス、カビ、菌、アレルゲン、臭気分子等からなる汚染物質を除去することを意味するもので、具体的には、これらの汚染物質を捕集、不活性化、吸着又は分解する動作を意味している。本実施の形態の清浄化手段8は、このような清浄化が可能な装置として、例えば空気中の塵埃等を捕集する集塵フィルタ、臭気成分を吸着する脱臭フィルタ、電極に高電圧を印加することで汚染物質を除去及び分解する電圧印加デバイス等により構成されるか、またはこれらの組み合わせにより構成されている。なお、図4では電圧印加デバイスを想定し、清浄化手段8が制御手段23に電気的に接続され、制御されるように示している。しかしながら、清浄化手段8は脱臭フィルタや集塵フィルタ等、電気的に制御が出来ない部材で構成される場合の方が一般的であり、清浄化手段8と制御手段23は必ずしも電気的に接続されるものでは無く、清浄化手段8は制御手段23によって制御されるとは限らない。本記載は清浄化手段8が電気的な制御によるものに限定するものでは無く、制御手段23によって制御される事に限定するものでも無い。基本的には空気を汚染する何らかの物質を捕集、不活化、分解等の手段で浄化する機能があれば清浄化手段8の範疇に入るものとする。
The cleaning means 8 cleans the air that passes through the inside of the casing 2, and is provided between the suction port 4 and the air blowing means 6, for example. Here, “cleaning” means removing contaminants such as dust, smoke, pollen, viruses, molds, fungi, allergens, and odor molecules floating in the air. Means the action of collecting, deactivating, adsorbing or decomposing these contaminants. The cleaning means 8 of this embodiment is a device capable of such cleaning, for example, a dust collection filter that collects dust in the air, a deodorization filter that adsorbs odor components, and a high voltage applied to the electrode. Thus, it is configured by a voltage application device that removes and decomposes contaminants, or a combination thereof. In FIG. 4, it is assumed that the voltage applying device is assumed, and the cleaning means 8 is electrically connected to the control means 23 and controlled. However, it is more common that the cleaning means 8 is composed of a member that cannot be electrically controlled, such as a deodorizing filter or a dust collection filter, and the cleaning means 8 and the control means 23 are not necessarily electrically connected. However, the cleaning means 8 is not always controlled by the control means 23. This description is not limited to the cleaning means 8 being controlled by electrical control, and is not limited to being controlled by the control means 23. Basically, if there is a function of purifying any substance that pollutes the air by means such as collection, inactivation, decomposition, etc., it shall fall within the category of the cleaning means 8.
空気の流れ方向において清浄化手段8の上流側には、ケーシング2の内部に吸込んだ汚染物質の量を検知する汚れ検出装置20が設けられている。汚れ検出装置20は、例えば埃センサ、ガスセンサ、風速センサ等により構成されるか、または、これらのセンサを組合わせた複合型センサにより構成されている。汚れ検出装置20によれば、空気清浄機1により特定の方向に空気を吹出し、この方向から還流してくる空気中の汚染物質の量を検出することにより、特定の方向における空気の汚れ度合を検出することができる。なお、汚れ検出装置20は、本実施の形態において、汚れ度合の指標となる情報を検出する汚れ度合情報検出手段の具体例を構成している。
A dirt detector 20 for detecting the amount of contaminants sucked into the casing 2 is provided upstream of the cleaning means 8 in the air flow direction. The dirt detection device 20 is constituted by, for example, a dust sensor, a gas sensor, a wind speed sensor, or the like, or a composite sensor in which these sensors are combined. According to the dirt detection device 20, air is blown out in a specific direction by the air cleaner 1, and the amount of pollutants in the air returning from this direction is detected, so that the degree of air pollution in the specific direction is determined. Can be detected. In the present embodiment, the dirt detection device 20 constitutes a specific example of a dirt degree information detection unit that detects information serving as an index of the degree of dirt.
図3は、可動ルーバ及び整流機構の作動状態(a),(b)を示す図1中の要部拡大図である。可動ルーバ9は、図2及び図3に示すように、吹出し空気の風向を上下方向に揺動させるもので、ケーシング2の吹出口5A,5Bに1個ずつ設けられている。詳しく述べると、可動ルーバ9は、例えばケーシング2の左右方向に延在する細長い平板等により形成されている。そして、可動ルーバ9の基端側は、吹出口5A,5Bにそれぞれ設けられたルーバ駆動部10を介して個々の吹出口5A,5Bに取付けられ、可動ルーバ9の先端側は、ルーバ駆動部10により上下方向に揺動可能となっている。また、2個の可動ルーバ9は、吹出口5A,5Bから吹出す空気の風向をそれぞれ個別に変更可能に構成されている。なお、本実施の形態では、2個の可動ルーバ9を備える場合を例示したが、本発明は、吹出口5の個数に応じて1個のみまたは3個以上の可動ルーバ9を備える構成としてもよい。
FIG. 3 is an enlarged view of a main part in FIG. 1 showing operating states (a) and (b) of the movable louver and the rectifying mechanism. As shown in FIGS. 2 and 3, the movable louver 9 swings the direction of the blown air in the vertical direction, and is provided one at each of the outlets 5 </ b> A and 5 </ b> B of the casing 2. More specifically, the movable louver 9 is formed of, for example, an elongated flat plate that extends in the left-right direction of the casing 2. And the base end side of the movable louver 9 is attached to each blower outlet 5A, 5B via the louver drive part 10 provided in blower outlet 5A, 5B, respectively, and the front end side of the movable louver 9 is a louver drive part. 10 can swing up and down. In addition, the two movable louvers 9 are configured such that the direction of the air blown out from the outlets 5A and 5B can be individually changed. In the present embodiment, the case where the two movable louvers 9 are provided is illustrated, but the present invention may be configured so that only one or three or more movable louvers 9 are provided according to the number of the outlets 5. Good.
可動ルーバ9は、上下方向に揺動することにより、当該揺動角に応じて吹出し空気の風向を前方と上方との間で上下方向にスイングさせる。風向の仰角は、可動ルーバ9の仰角とほぼ等しい角度に変更される。なお、本明細書において、「仰角」とは、床面と平行な水平方向を基準として、上方に傾斜した角度を意味している。即ち、仰角=0°は水平方向を表し、仰角=90°は鉛直方向の真上を表している。
The movable louver 9 swings in the vertical direction to swing the wind direction of the blown air in the vertical direction between the front and the upper according to the swing angle. The elevation angle of the wind direction is changed to an angle substantially equal to the elevation angle of the movable louver 9. In the present specification, the “elevation angle” means an angle inclined upward with respect to a horizontal direction parallel to the floor surface. That is, the elevation angle = 0 ° represents the horizontal direction, and the elevation angle = 90 ° represents the vertical direction.
ルーバ駆動部10は、可動ルーバ9を揺動可能に支持する支軸と、この支軸を回転させるアクチュエータ(図示せず)とを備えている。可動ルーバ9及びルーバ駆動部10は、吹出し空気の風向を上下方向に変更することが可能な風向可変機構の具体例を構成している。開口可変機構11は、図2に示すように、例えば片方の可動ルーバ9と前後方向で対向する位置に設けられ、当該可動ルーバ9と協働して吹出口5Aの開口面積を変更するものである。なお、図1及び図3では、後述の整流機構13を明示するために、開口可変機構11の図示を省略している。また、図2では、一方の吹出口5Aのみに開口可変機構11を配置する場合を例示したが、本発明はこれに限らず、他方の吹出口5Bのみ、または両方の吹出口5A,5Bに開口可変機構11を配置する構成としてもよい。
The louver driving unit 10 includes a support shaft that supports the movable louver 9 so as to be swingable, and an actuator (not shown) that rotates the support shaft. The movable louver 9 and the louver drive unit 10 constitute a specific example of a wind direction variable mechanism capable of changing the wind direction of the blown air in the vertical direction. As shown in FIG. 2, the opening variable mechanism 11 is provided, for example, at a position facing one movable louver 9 in the front-rear direction, and changes the opening area of the outlet 5 </ b> A in cooperation with the movable louver 9. is there. In FIGS. 1 and 3, the opening variable mechanism 11 is not shown in order to clearly show a rectifying mechanism 13 described later. Moreover, in FIG. 2, although the case where the opening variable mechanism 11 was arrange | positioned only to one blower outlet 5A was illustrated, this invention is not restricted to this, Only the other blower outlet 5B or both blower outlets 5A and 5B are shown. It is good also as a structure which arrange | positions the opening variable mechanism 11. FIG.
開口可変機構11は、例えばケーシング2の左右方向に延在する細長い平板等により形成されている。開口可変機構11の基端部は、ルーバ駆動部10とほぼ同様の構成を有する開口駆動部12を介して吹出口5Aに取付けられている。開口可変機構11の先端部は、開口駆動部12により前後方向に揺動され、可動ルーバ9に対して近接及び離間するように変位する。これにより、開口可変機構11は、吹出口5Aの開口面積を増減させ、当該開口面積に応じて吹出し空気の風速を変更することができる。即ち、開口可変機構11及び開口駆動部12は、吹出し空気の風速を変更することが可能な送風変更手段の具体例を構成している。なお、開口可変機構11は、吹出口5ではなく風路7A,7Bの一方または両方に配置し、風路7の開口面積(つまり流路面積)を変更する機構としてもよい。
The opening variable mechanism 11 is formed by, for example, an elongated flat plate extending in the left-right direction of the casing 2. A base end portion of the opening variable mechanism 11 is attached to the air outlet 5 </ b> A via an opening driving unit 12 having a configuration substantially similar to that of the louver driving unit 10. The tip of the opening variable mechanism 11 is swung in the front-rear direction by the opening driving unit 12 and displaced so as to approach and separate from the movable louver 9. Thereby, the opening variable mechanism 11 can increase / decrease the opening area of 5 A of blower outlets, and can change the wind speed of blowing air according to the said opening area. That is, the opening variable mechanism 11 and the opening driving unit 12 constitute a specific example of the air blowing changing means capable of changing the wind speed of the blown air. Note that the opening variable mechanism 11 may be disposed not on the outlet 5 but on one or both of the air passages 7A and 7B and change the opening area of the air passage 7 (that is, the flow passage area).
整流機構13は、可動ルーバ9により設定された風向の仰角を保持した状態で、当該風向を左右方向に調整するものである。整流機構13は、図2及び図3に示すように、例えば略三角形状(又は扇形状)のフィンにより形成され、各可動ルーバ9の受風面側から突出すると共に、左右方向に間隔をもって複数個配置されている。そして、個々の整流機構13は、図3(a),(b)に示すように、左右方向に揺動し、当該揺動角に応じて吹出し空気の風向を左右方向に変化させる。
The rectifying mechanism 13 adjusts the wind direction in the left-right direction while maintaining the elevation angle of the wind direction set by the movable louver 9. As shown in FIGS. 2 and 3, the rectifying mechanism 13 is formed of, for example, a substantially triangular (or fan-shaped) fin, protrudes from the wind receiving surface side of each movable louver 9, and has a plurality of intervals in the left-right direction. Are arranged. Each rectifying mechanism 13 swings in the left-right direction as shown in FIGS. 3A and 3B, and changes the direction of the blown air in the left-right direction according to the swing angle.
また、整流機構13の揺動動作は、例えば可動ルーバ9に設けられた整流駆動部14(図4にのみ図示)により実行される。すなわち、整流機構13及び整流駆動部14は、吹出し空気の風向を左右方向に変更することが可能な風向可変機構の具体例を構成している。なお、本発明では、必ずしも整流機構13を設ける必要はない。また、整流機構13は、例えば可動ルーバ9の左右両端側にのみ1個ずつ配置する構成としてもよい。
Further, the swinging operation of the rectifying mechanism 13 is executed by, for example, a rectifying drive unit 14 (shown only in FIG. 4) provided in the movable louver 9. That is, the rectification mechanism 13 and the rectification drive unit 14 constitute a specific example of a wind direction variable mechanism that can change the wind direction of the blown air in the left-right direction. In the present invention, the rectifying mechanism 13 is not necessarily provided. Further, for example, one rectifying mechanism 13 may be arranged only on both the left and right ends of the movable louver 9.
水平回転機構15は、図1及び図2に示すように、ケーシング2と台座3との間に設けられ、ケーシング2を台座3上で少なくとも左右方向に回転させるものである。吹出口5の向きは、ケーシング2と共に水平方向に変化するので、水平回転機構15は、吹出し空気の風向を左右方向に変更することが可能な風向可変機構の具体例を構成している。また、同様に、吸込口4の向きについても、ケーシング2と共に水平方向に変化するので、水平回転機構15は、吸込口4を水平方向に回転させる吸込口水平回転機構の具体例を構成している。なお、前述するように、本実施の形態1は、ファンを二つ上下方向に並べる構造とすることで、ファン一つで駆動する同風量の装置よりも正方形や円形に成型しやすくし、設置面積を小型化している。特に、正方形や円形は水平方向に回転動作する際に必要な設置面積をも小型化する事が可能であり、水平回転機構15を稼働させる上で最適な形状となっている。これにより、水平回転機構15を有していても、家具等の間に設置し易く、部屋の状況に応じて使用者が自由に配置換えを出来、汎用性がある構成を実現している。
1 and 2, the horizontal rotation mechanism 15 is provided between the casing 2 and the pedestal 3 and rotates the casing 2 on the pedestal 3 at least in the left-right direction. Since the direction of the blower outlet 5 changes in the horizontal direction together with the casing 2, the horizontal rotation mechanism 15 constitutes a specific example of a wind direction variable mechanism that can change the wind direction of the blown air in the left-right direction. Similarly, since the direction of the suction port 4 also changes in the horizontal direction together with the casing 2, the horizontal rotation mechanism 15 constitutes a specific example of the suction port horizontal rotation mechanism that rotates the suction port 4 in the horizontal direction. Yes. As described above, the first embodiment has a structure in which two fans are arranged in the vertical direction, so that it can be more easily formed into a square or a circle than a device with the same air volume driven by a single fan. The area is downsized. In particular, squares and circles can reduce the installation area required when rotating in the horizontal direction, and are optimal in operating the horizontal rotation mechanism 15. Thereby, even if it has the horizontal rotation mechanism 15, it is easy to install between furniture etc., and the user can rearrange freely according to the condition of a room, and the structure which has versatility is implement | achieved.
また、ケーシング2の正面上部側には人検出装置21が設けられている。人検出装置21は、室内に存在する人を検出する人検出手段として機能するものである。人検出装置21は、赤外線を利用して人を検出する人検出センサとしての赤外線センサ40と、当該赤外線センサ40の向きをケーシング2に対して水平方向(つまり左右方向の両側)に回転駆動させるセンサ水平回転機構としてのセンサ稼動部44とを備えている。なお、人検出装置21の詳細については後述する。
Further, a human detection device 21 is provided on the upper front side of the casing 2. The human detection device 21 functions as a human detection unit that detects a person existing in the room. The human detection device 21 rotationally drives the infrared sensor 40 as a human detection sensor that detects a person using infrared rays and the direction of the infrared sensor 40 in the horizontal direction (that is, both sides in the left-right direction) with respect to the casing 2. And a sensor operating unit 44 as a sensor horizontal rotation mechanism. Details of the human detection device 21 will be described later.
(制御系統)
次に、図4等を参照して、空気清浄機1の制御系統について説明する。図4は、本発明の実施の形態1による空気清浄機の制御系統を示す構成図である。空気清浄機1は、赤外線センサ40及び汚れ検出装置20を含むセンサ系統と、空気清浄機1を操作するための操作部22と、空気清浄機1の運転状態を制御する制御手段23とを備えている。 (Control system)
Next, with reference to FIG. 4 etc., the control system of theair cleaner 1 is demonstrated. FIG. 4 is a configuration diagram showing a control system of the air cleaner according to the first embodiment of the present invention. The air cleaner 1 includes a sensor system including an infrared sensor 40 and a dirt detection device 20, an operation unit 22 for operating the air cleaner 1, and a control unit 23 that controls the operating state of the air cleaner 1. ing.
次に、図4等を参照して、空気清浄機1の制御系統について説明する。図4は、本発明の実施の形態1による空気清浄機の制御系統を示す構成図である。空気清浄機1は、赤外線センサ40及び汚れ検出装置20を含むセンサ系統と、空気清浄機1を操作するための操作部22と、空気清浄機1の運転状態を制御する制御手段23とを備えている。 (Control system)
Next, with reference to FIG. 4 etc., the control system of the
一方、操作部22は、空気清浄機1のユーザが各種の設定及び運転の切換を行うときに操作するもので、空気清浄機1を起動及び停止するための電源スイッチと、空気清浄機1の運転状態等を表示する表示部とを備えている。また、操作部22は、制御手段23に対して双方向の通信が可能な状態で接続されている。
On the other hand, the operation unit 22 is operated when the user of the air purifier 1 performs various settings and switching of operation. The power switch for starting and stopping the air purifier 1 and the air purifier 1 And a display unit for displaying an operation state and the like. The operation unit 22 is connected to the control unit 23 in a state where bidirectional communication is possible.
制御手段23は、空気清浄機1の運転状態を制御するもので、図示しない演算処理装置、入出力ポート及び記憶回路等を備えている。制御手段23の入力側には、図4に示すように、赤外線センサ40及び汚れ検出装置20を含むセンサ系統が接続されている。制御手段23の出力側には、送風手段6、清浄化手段8、ルーバ駆動部10、開口駆動部12、整流駆動部14、水平回転機構15、センサ稼動部44等を含むアクチュエータが接続されている。そして、制御手段23は、センサ系統の出力に基いてアクチュエータを制御することにより、空気清浄機1を作動させる。
The control means 23 controls the operating state of the air purifier 1 and includes an arithmetic processing unit, an input / output port, a storage circuit, and the like (not shown). As shown in FIG. 4, a sensor system including an infrared sensor 40 and a dirt detection device 20 is connected to the input side of the control means 23. Connected to the output side of the control means 23 is an actuator including the air blowing means 6, the cleaning means 8, the louver driving section 10, the opening driving section 12, the rectifying driving section 14, the horizontal rotation mechanism 15, the sensor operating section 44, and the like. Yes. And the control means 23 operates the air cleaner 1 by controlling an actuator based on the output of a sensor system | strain.
次に、空気清浄機1の基本的な動作について説明する。空気清浄機1の作動時には、まず、制御手段23により送風手段6及び清浄化手段8が駆動される。これにより、ケーシング2の吸込口4から内部に空気が吸込まれ、この空気は、清浄化手段8により清浄化される。そして、清浄化された空気は、各送風手段6及び風路7A,7Bを経由して吹出口5A,5Bに到達し、吹出口5A,5Bから外部に送風される。このとき、本実施の形態の空気清浄機1の制御手段23は、人検出装置21を用いて室内に居る人の方向及び当該人の高さを検出する人検出制御、及び検出された人の頭上のエリアに吹出風が送風されるように可動ルーバ9、開口可変機構11、整流機構13、水平回転機構15等を駆動する風向制御を行う。以下、人検出装置21の構成、人検出制御、及び風向制御について順に説明する。
Next, the basic operation of the air cleaner 1 will be described. When the air cleaner 1 is in operation, first, the air blowing means 6 and the cleaning means 8 are driven by the control means 23. Thereby, air is sucked into the inside from the suction port 4 of the casing 2, and this air is cleaned by the cleaning means 8. And the purified air reaches | attains blower outlet 5A, 5B via each ventilation means 6 and wind path 7A, 7B, and is ventilated outside from blower outlet 5A, 5B. At this time, the control means 23 of the air cleaner 1 of the present embodiment uses the human detection device 21 to detect the direction of the person in the room and the height of the person, and to detect the detected person. Wind direction control is performed to drive the movable louver 9, the opening variable mechanism 11, the rectifying mechanism 13, the horizontal rotation mechanism 15, and the like so that the blowing air is blown into the overhead area. Hereinafter, the configuration of the human detection device 21, human detection control, and wind direction control will be described in order.
(人検出装置の構成)
次に、図5から図7を参照して、人検出装置21の構成について説明する。図5は、赤外線センサの構造を模式的に示す断面図である。図6は、赤外線センサを構成する受光素子の配置及び各受光素子の検出範囲を示す斜視図である。図7は、センサ稼動部による赤外線センサの回転動作(a),(b),(c)を示す説明図である。上述したように、人検出装置21は、赤外線センサ40とセンサ稼動部44とを備えている。赤外線センサ40は、検出対象物から発生する赤外線を検出するもので、図5に示すように、複数の受光素子41a~41hにより構成された多素子受光ユニット41と、集光レンズ42とを備えている。なお、図5では、多素子受光ユニット41を8個の受光素子41a~41hにより構成する場合を例示した。しかし、本発明において、受光素子の個数は8個に限定されるものではなく、多素子受光ユニット41は、7個以下または9個以上となる任意の個数の受光素子により構成してもよい。 (Configuration of human detection device)
Next, the configuration of thehuman detection device 21 will be described with reference to FIGS. FIG. 5 is a cross-sectional view schematically showing the structure of the infrared sensor. FIG. 6 is a perspective view showing the arrangement of the light receiving elements constituting the infrared sensor and the detection range of each light receiving element. FIG. 7 is an explanatory diagram showing rotation operations (a), (b), and (c) of the infrared sensor by the sensor operating unit. As described above, the human detection device 21 includes the infrared sensor 40 and the sensor operating unit 44. The infrared sensor 40 detects infrared rays generated from an object to be detected, and includes a multi-element light receiving unit 41 composed of a plurality of light receiving elements 41a to 41h and a condensing lens 42 as shown in FIG. ing. FIG. 5 illustrates the case where the multi-element light receiving unit 41 is configured by eight light receiving elements 41a to 41h. However, in the present invention, the number of light receiving elements is not limited to eight, and the multi-element light receiving unit 41 may be configured by an arbitrary number of light receiving elements of 7 or less or 9 or more.
次に、図5から図7を参照して、人検出装置21の構成について説明する。図5は、赤外線センサの構造を模式的に示す断面図である。図6は、赤外線センサを構成する受光素子の配置及び各受光素子の検出範囲を示す斜視図である。図7は、センサ稼動部による赤外線センサの回転動作(a),(b),(c)を示す説明図である。上述したように、人検出装置21は、赤外線センサ40とセンサ稼動部44とを備えている。赤外線センサ40は、検出対象物から発生する赤外線を検出するもので、図5に示すように、複数の受光素子41a~41hにより構成された多素子受光ユニット41と、集光レンズ42とを備えている。なお、図5では、多素子受光ユニット41を8個の受光素子41a~41hにより構成する場合を例示した。しかし、本発明において、受光素子の個数は8個に限定されるものではなく、多素子受光ユニット41は、7個以下または9個以上となる任意の個数の受光素子により構成してもよい。 (Configuration of human detection device)
Next, the configuration of the
各受光素子41a~41hは、赤外線の受光及び人の検出をそれぞれ個別に実行可能な検出素子であり、例えば上下方向に直線状に並べて配置されている。これにより、赤外線センサ40は、室内の温度を互いに高さが異なる8個のエリアに区分して検出する機能を備えている。集光レンズ42は、多素子受光ユニット41に対して赤外線を効率よく集光するもので、例えば凸レンズにより構成されている。集光レンズ42は、多素子受光ユニット41のZ方向上部に配置してもよい。赤外線センサ40は、個々の受光素子41a~41hにより検出対象物の温度を検出し、例えば室内の熱画像データに対応する信号を出力する。
Each of the light receiving elements 41a to 41h is a detection element that can individually perform infrared light reception and human detection, and is arranged, for example, in a straight line in the vertical direction. Thus, the infrared sensor 40 has a function of detecting the indoor temperature by dividing it into eight areas having different heights. The condensing lens 42 efficiently condenses infrared rays with respect to the multi-element light receiving unit 41, and is constituted by, for example, a convex lens. The condensing lens 42 may be arranged on the upper part of the multi-element light receiving unit 41 in the Z direction. The infrared sensor 40 detects the temperature of the object to be detected by the individual light receiving elements 41a to 41h, and outputs a signal corresponding to, for example, indoor thermal image data.
図6は、赤外線センサの各受光素子の配置及び配光視野角を示す斜視図である。この図に示すように、各受光素子41a~41hの配光視野角43a~43hは、互いに大きさが等しい四角形状のエリアとして設定されている。また、1個の受光素子41a(41b~41hでもよい)の配光視野角43a(43b~43h)は、例えば上下方向における縦配光視野角が7°に設定され、左右方向の横配光視野角が8°に設定されている。
FIG. 6 is a perspective view showing the arrangement and light distribution viewing angle of each light receiving element of the infrared sensor. As shown in this figure, the light distribution viewing angles 43a to 43h of the light receiving elements 41a to 41h are set as rectangular areas having the same size. Further, the light distribution viewing angle 43a (43b to 43h) of one light receiving element 41a (which may be 41b to 41h) is set such that the vertical light distribution viewing angle in the vertical direction is set to 7 °, for example, and the horizontal light distribution in the horizontal direction. The viewing angle is set to 8 °.
配光視野角43a~43hを合わせた全体の配光視野角43は、上下方向に細長いエリアとして設定され、配光視野角43の上限である視野角上限43maxと、配光視野角43の下限である視野角下限43minとを有している。なお、本発明では、配光視野角43a~43hを必ずしも同じ形状、同じ大きさにする必要はなく、縦配光視野角及び横配光視野角の具体的な値についても、上記例示に限定されるものではない。
The total light distribution viewing angle 43 including the light distribution viewing angles 43a to 43h is set as an elongated area in the vertical direction, and the viewing angle upper limit 43max that is the upper limit of the light distribution viewing angle 43 and the lower limit of the light distribution viewing angle 43 are set. And a viewing angle lower limit of 43 min. In the present invention, the light distribution viewing angles 43a to 43h do not necessarily have the same shape and the same size, and the specific values of the vertical light distribution viewing angle and the horizontal light distribution viewing angle are also limited to the above examples. Is not to be done.
センサ稼動部44は、赤外線センサ40の向きをケーシング2に対して水平方向に回転可能に構成されている。センサ稼動部44は、例えば、赤外線センサ40の回転駆動角度を正確に調整可能なステッピングモータが用いられ、上述した水平回転機構15の動作とは独立して制御可能に構成される。図7は、センサ稼動部による赤外線センサの回転動作を示す説明図であり、(a)は右端部へ回転駆動された場合を、(b)は中央部に回転駆動された場合を、そして(c)は左端部へ回転駆動された場合をそれぞれ示している。この図に示すように、人検出装置21は、まず、センサ稼動部44により赤外線センサ40の向き(検出方向)を左右方向に回転駆動する。より具体的に述べると、赤外線センサ40の向きは、図7中(a)に示す右端部から(b)に示す中央部を経由して(c)に示す左端部まで回転駆動される。そして、(c)に示す左端部に到達すると、回転方向を反転して(c)に示す左端部から(b)に示す中央部を経由して(a)に示す右端部に戻される。人検出装置21はこのような動作を繰り返し行うことにより、室内の温度検出対象範囲を左右方向に走査して温度を順に検出する。
The sensor operating unit 44 is configured to be able to rotate the direction of the infrared sensor 40 in the horizontal direction with respect to the casing 2. For example, a stepping motor capable of accurately adjusting the rotational drive angle of the infrared sensor 40 is used as the sensor operating unit 44, and is configured to be controllable independently of the operation of the horizontal rotation mechanism 15 described above. FIGS. 7A and 7B are explanatory diagrams showing the rotation operation of the infrared sensor by the sensor operating unit, where FIG. 7A shows a case where the sensor is rotated to the right end, FIG. 7B shows a case where the sensor is rotated to the center, and ( c) shows the case where it is rotationally driven to the left end. As shown in this figure, the human detection device 21 first rotationally drives the direction (detection direction) of the infrared sensor 40 in the left-right direction by the sensor operating unit 44. More specifically, the direction of the infrared sensor 40 is rotationally driven from the right end portion shown in FIG. 7A to the left end portion shown in FIG. 7C via the central portion shown in FIG. Then, when reaching the left end portion shown in (c), the rotation direction is reversed and the left end portion shown in (c) is returned to the right end portion shown in (a) through the central portion shown in (b). By repeatedly performing such an operation, the human detection device 21 scans the indoor temperature detection target range in the left-right direction and detects temperatures in order.
(人検出制御)
次に、制御手段23により実行される人検出制御について説明する。制御手段23は、人検出装置21を用いて室内の壁又は床の熱画像データを取得し、当該熱画像データに基づいて室内に在室する人の検出を行う。より詳しくは、先ず、制御手段23は、センサ稼動部44を予め定められた可動角度(ここでは1.6°とする)左右方向に可動させる。これにより、赤外線センサ40は1.6°回転駆動される。次に、赤外線センサ40を予め定められた待機時間(例えば0.1~0.2秒)停止させる。そして、この間に赤外線センサ40の8個の受光素子41a~41hによって熱画像データがそれぞれ検出され、制御手段23に取り込まれる。待機時間の経過後、制御手段23は、再びセンサ稼動部44を可動角度(1.6°)左右方向に可動させる。そして、上記同様の動作によって熱画像データが制御手段23に取り込まれる。このような処理が可動角度1.6°毎に94箇所において行われる。この場合、赤外線センサ40の左右方向の可動範囲(すなわち左右方向に回転駆動する角度範囲)は、約150.4°となる。 (Person detection control)
Next, human detection control executed by thecontrol unit 23 will be described. The control means 23 acquires the thermal image data of the indoor wall or floor using the human detection device 21, and detects a person in the room based on the thermal image data. More specifically, first, the control means 23 moves the sensor operating unit 44 in the left-right direction at a predetermined movable angle (here, 1.6 °). Thereby, the infrared sensor 40 is rotated by 1.6 °. Next, the infrared sensor 40 is stopped for a predetermined standby time (for example, 0.1 to 0.2 seconds). During this time, the thermal image data is detected by the eight light receiving elements 41 a to 41 h of the infrared sensor 40 and taken into the control means 23. After the standby time has elapsed, the control means 23 again moves the sensor operating unit 44 in the left-right direction by a movable angle (1.6 °). Then, the thermal image data is taken into the control means 23 by the same operation as described above. Such a process is performed at 94 points every 1.6 ° of movable angle. In this case, the movable range in the left-right direction of the infrared sensor 40 (that is, the angular range for rotational driving in the left-right direction) is about 150.4 °.
次に、制御手段23により実行される人検出制御について説明する。制御手段23は、人検出装置21を用いて室内の壁又は床の熱画像データを取得し、当該熱画像データに基づいて室内に在室する人の検出を行う。より詳しくは、先ず、制御手段23は、センサ稼動部44を予め定められた可動角度(ここでは1.6°とする)左右方向に可動させる。これにより、赤外線センサ40は1.6°回転駆動される。次に、赤外線センサ40を予め定められた待機時間(例えば0.1~0.2秒)停止させる。そして、この間に赤外線センサ40の8個の受光素子41a~41hによって熱画像データがそれぞれ検出され、制御手段23に取り込まれる。待機時間の経過後、制御手段23は、再びセンサ稼動部44を可動角度(1.6°)左右方向に可動させる。そして、上記同様の動作によって熱画像データが制御手段23に取り込まれる。このような処理が可動角度1.6°毎に94箇所において行われる。この場合、赤外線センサ40の左右方向の可動範囲(すなわち左右方向に回転駆動する角度範囲)は、約150.4°となる。 (Person detection control)
Next, human detection control executed by the
このような人検出装置21の構成によれば、赤外線センサ40の左右方向の可動範囲において、熱画像データを時間毎に比較することにより、室内空間内に現れた人の方向及び高さを検出することができる。また、本実施の形態の人検出装置21によれば、赤外線センサ40の8個の受光素子41a~41hによって各配光視野角43a~43hのエリアの熱画像データがそれぞれ取り込まれるので、何れの配光視野角のエリアに人の存在が検出されたかによって人体の高さについても高精度に検出することが可能となる。更に、制御手段23は、センサ稼動部44を水平回転機構15の動作とは独立して制御するので、後述する風向制御に影響を与えることなく赤外線センサ40の左右方向の向きを回転駆動させることができる。
According to the configuration of the human detection device 21 as described above, the direction and height of the person appearing in the indoor space are detected by comparing the thermal image data for each time within the movable range in the left-right direction of the infrared sensor 40. can do. Further, according to the human detection device 21 of the present embodiment, the thermal image data of the areas of the respective light distribution viewing angles 43a to 43h are respectively captured by the eight light receiving elements 41a to 41h of the infrared sensor 40. Depending on whether or not the presence of a person is detected in the area of the light distribution viewing angle, the height of the human body can be detected with high accuracy. Furthermore, since the control unit 23 controls the sensor operating unit 44 independently of the operation of the horizontal rotation mechanism 15, it rotates the direction of the infrared sensor 40 in the left-right direction without affecting the wind direction control described later. Can do.
なお、人検出装置21は、必ずしも赤外線センサ40により構成する必要はなく、室内に居る人の方向及びその高さを検出可能なセンサであれば、汚れセンサ、動体センサ、距離センサ、湿度センサ、又は照度センサ等、またはこれらのセンサと赤外線センサ40とを組み合わせることにより構成してもよい。
Note that the human detection device 21 is not necessarily configured by the infrared sensor 40, and can be a dirt sensor, a moving object sensor, a distance sensor, a humidity sensor, a sensor that can detect the direction and height of a person in the room. Or you may comprise by combining an illuminance sensor etc. or these sensors and the infrared sensor 40. FIG.
ここで、汚れセンサ(埃センサ)は、半導体素子、光学素子等により構成され、空気中の塵埃、煙、花粉等の濃度を検出する。距離センサは、例えば超音波センサ、光センサ、画像認識センサ等の非接触式センサにより構成され、音波または電磁波を利用して、空気清浄機1と検出対象物との距離を検出する。検出対象物には、室内における壁、天井、家具、人、動物等が含まれる。照度センサは、照度の変化に基づいて、室内における人及び動物の有無、動き等を検出する。また、湿度センサの出力は、上記各センサの感度を湿度に応じて補正するときに用いられる。なお、上記各センサの組合わせは一例に過ぎず、本発明は、上記各センサの組合わせによる人検出手段に限定されるものではない。
Here, the dirt sensor (dust sensor) is composed of a semiconductor element, an optical element, etc., and detects the concentration of dust, smoke, pollen, etc. in the air. The distance sensor is composed of, for example, a non-contact sensor such as an ultrasonic sensor, an optical sensor, or an image recognition sensor, and detects the distance between the air cleaner 1 and the detection target object using sound waves or electromagnetic waves. Objects to be detected include indoor walls, ceilings, furniture, people, animals, and the like. The illuminance sensor detects the presence, movement, etc. of people and animals in the room based on the change in illuminance. The output of the humidity sensor is used when correcting the sensitivity of each sensor according to the humidity. In addition, the combination of each said sensor is only an example, and this invention is not limited to the human detection means by the combination of each said sensor.
(風向制御)
次に、制御手段23により実行される風向制御について説明する。制御手段23は、人検出装置21の赤外線センサ40により取得された熱画像データに基づいて、室内に人が存在すると判断した場合に、風向制御を実行する。風向制御では、先ず、空気清浄機1の正面部を人の方向に向けるために必要な水平方向の回転角度θ1を算出する。次に、制御手段23は、水平回転機構15によりケーシング2を回転角度θ1だけ回転させる。これにより、吹出口5は、水平方向において人がいる方向に向いた状態となる。また、風向ベクトル50の少なくとも前後方向ベクトル50bは人の方向を向いた状態となる。 (Wind direction control)
Next, the wind direction control executed by the control means 23 will be described. When it is determined that a person is present in the room based on the thermal image data acquired by theinfrared sensor 40 of the human detection device 21, the control unit 23 performs wind direction control. In the wind direction control, first, a horizontal rotation angle θ1 necessary for directing the front portion of the air purifier 1 toward the person is calculated. Next, the control means 23 rotates the casing 2 by the rotation angle θ1 by the horizontal rotation mechanism 15. Thereby, the blower outlet 5 will be in the state which faced the direction where a person exists in a horizontal direction. Further, at least the front-rear direction vector 50b of the wind direction vector 50 is in a state of facing the direction of the person.
次に、制御手段23により実行される風向制御について説明する。制御手段23は、人検出装置21の赤外線センサ40により取得された熱画像データに基づいて、室内に人が存在すると判断した場合に、風向制御を実行する。風向制御では、先ず、空気清浄機1の正面部を人の方向に向けるために必要な水平方向の回転角度θ1を算出する。次に、制御手段23は、水平回転機構15によりケーシング2を回転角度θ1だけ回転させる。これにより、吹出口5は、水平方向において人がいる方向に向いた状態となる。また、風向ベクトル50の少なくとも前後方向ベクトル50bは人の方向を向いた状態となる。 (Wind direction control)
Next, the wind direction control executed by the control means 23 will be described. When it is determined that a person is present in the room based on the thermal image data acquired by the
次の処理では、上下方向における可動ルーバ9の仰角θ2、即ち、風向の仰角θ2を、風向が人の高さよりも上方の送風エリアに向くように設定する。ここでは、例えば、受光素子41a~41hのうち受光素子41f~41hにおいて人を検知した場合、受光素子41a~41eの部分を送風エリアとする。そして、この送風エリアに対して送風可能な可動ルーバ9の仰角θ2を算出し、可動ルーバ9を駆動する。これにより、室内に在室する人の頭上に吹出風が送風される。即ち、風向ベクトル50の鉛直方向ベクトル50aは人に向かないように設定され、各ベクトル成分50a、50b、50cの合計である風向ベクトル50は人の方向を向かないようになる。なお、ここでは鉛直方向ベクトル50aを動かして、前後方向ベクトル50bを人の方向に向かせつつ合計の風向ベクトル50を人に向かせないようにしているが、左右方向ベクトル50cを変更しても良いし、50a、50cの両方を変更しても良い。即ち、前後方向ベクトル50bは人の方向を向きつつも、風向ベクトル50は人の方向を向いていない事が重要である。
In the next process, the elevation angle θ2 of the movable louver 9 in the vertical direction, that is, the elevation angle θ2 of the wind direction is set so that the wind direction is directed to the air blowing area above the height of the person. Here, for example, when a person is detected in the light receiving elements 41f to 41h among the light receiving elements 41a to 41h, the portions of the light receiving elements 41a to 41e are set as the blowing area. Then, the elevation angle θ2 of the movable louver 9 capable of blowing air to the blowing area is calculated, and the movable louver 9 is driven. Thereby, a blowing wind blows on the head of the person who lives in the room. That is, the vertical direction vector 50a of the wind direction vector 50 is set so as not to face the person, and the wind direction vector 50, which is the sum of the vector components 50a, 50b, 50c, does not face the person. In this example, the vertical direction vector 50a is moved so that the front-rear direction vector 50b is directed toward the person while the total wind direction vector 50 is not directed toward the person. However, even if the left-right direction vector 50c is changed. It is good, and both 50a and 50c may be changed. That is, it is important that the front-rear direction vector 50b is directed toward the person, but the wind direction vector 50 is not directed toward the person.
可動ルーバ9の仰角θ2は、各受光素子41a~41hのうち、人体を検知した受光素子の数である人体検知素子数Nと、風量Q及び風速Vで送風した際の気流の広がり角度Δθ2のうち、下側の広がり角度Δθ2-(Q,V)と、視野角下限43minを水平から下方向へ傾斜させた傾斜角θ3を用いて、次式(1)により決定することができる。
θ2≧7×N-θ3+Δθ2-(Q,V) ・・・(1) The elevation angle θ2 of themovable louver 9 is defined by the number N of human body detection elements, which is the number of light receiving elements that have detected a human body among the light receiving elements 41a to 41h, and the airflow spread angle Δθ2 when the air is blown at the air volume Q and the wind speed V. Among them, the lower spread angle Δθ2 − (Q, V) and the tilt angle θ3 obtained by tilting the viewing angle lower limit 43 min from the horizontal to the downward direction can be determined by the following equation (1).
θ2 ≧ 7 × N−θ3 + Δθ2 − (Q, V) (1)
θ2≧7×N-θ3+Δθ2-(Q,V) ・・・(1) The elevation angle θ2 of the
θ2 ≧ 7 × N−θ3 + Δθ2 − (Q, V) (1)
なお、上記風向制御において、可動ルーバ9の仰角θ2は上式(1)の右辺の値(固定値)としてもよいし、また、次式(1)の右辺の値以上となる範囲で変動させて、可動ルーバ9を送風エリア内において揺動させることとしてもよい。
In the above wind direction control, the elevation angle θ2 of the movable louver 9 may be a value (fixed value) on the right side of the above equation (1), or may be varied within a range that is not less than the value on the right side of the following equation (1). Thus, the movable louver 9 may be swung in the air blowing area.
また、上記風向制御により人の上方の送風エリアに送風が行われている間、制御手段23は、汚れ検出装置20を用いて、吸込口4から吸い込まれる空気の汚れ度合を常に検出している。そして、制御手段23は、検出された汚れ度合が閾値以下となったか否かを判定する。ここで、閾値は、空気が清浄されたことを示す汚れ度合の閾値として予め設定された値が用いられる。その結果、検出された汚れ度合が閾値以下となったと判定された場合には、現在の風向のエリアの空気は十分に清浄化されたと判断できるので、当該風向に対する風向制御を終了する。次に、制御手段23は、上記人検出制御によって現在送風が向けられている人とは異なる人が室内に在室しているか否かを判定する。その結果、室内に前回と異なる条件の人が居ると判定された場合には、次に、当該異なる条件の人を対象とした風向制御を実行する。これにより、室内に居る人の方向に対して順次送風を行うことができる。
In addition, while the air is being blown to the air blowing area above the person by the wind direction control, the control unit 23 always detects the degree of dirt of the air sucked from the suction port 4 using the dirt detection device 20. . And the control means 23 determines whether the detected stain | pollution | contamination degree became below the threshold value. Here, as the threshold value, a value set in advance as a threshold value of the degree of contamination indicating that the air has been cleaned is used. As a result, when it is determined that the detected degree of dirt is equal to or less than the threshold value, it can be determined that the air in the current wind direction area has been sufficiently cleaned, and thus the wind direction control for the wind direction is terminated. Next, the control means 23 determines whether or not a person different from the person to whom the air is currently directed by the person detection control is present in the room. As a result, if it is determined that there is a person with a different condition from the previous time in the room, next, wind direction control for the person with the different condition is executed. Thereby, it can blow in order with respect to the direction of the person who is indoors.
一方、室内に異なる人が在室していないと判定された場合には、送風を継続しつつ水平回転機構15を駆動させて吹出し空気の風向を変更し、汚れ検出装置20によって閾値よりも大きな汚れ度合が検出される風向があるか否かを確認する。その結果、汚れ度合が閾値よりも大きな値となる風向が存在する場合には、当該風向に向けて重点的に吹出し空気の送風を行う第二風向制御を行う。一方、汚れ度合が閾値よりも大きな値となる風向が存在しない場合には、空気清浄機1の水平回転機構15を初期位置に戻して風量を下げた運転を行う。このような制御を行うことにより、室内に人が居ない場合であっても汚れ度合が大きいエリアの空気を重点的に清浄化することができる。
On the other hand, when it is determined that no different person is present in the room, the horizontal rotation mechanism 15 is driven while the air is being blown to change the air direction of the blown air, and the dirt detection device 20 exceeds the threshold value. It is confirmed whether there is a wind direction in which the degree of contamination is detected. As a result, when there is a wind direction in which the degree of dirt is greater than the threshold value, second wind direction control is performed in which the blown air is intensively directed toward the wind direction. On the other hand, when there is no wind direction in which the degree of dirt is greater than the threshold value, the horizontal rotation mechanism 15 of the air cleaner 1 is returned to the initial position and the air volume is reduced. By performing such control, even in the case where there is no person in the room, the air in the area where the degree of contamination is large can be intensively cleaned.
ところで、上述した風向き制御では、人検出制御によって検出された在室している人の方向及び人の高さに基づいて、風向を調整することとしているが、在室している人が室内を移動することも想定される。そこで、人検出制御は常に動作させて在室している人の動きを常に監視し、在室している人が移動した場合にはそれを受けて風向制御の送風エリアも変更することが望ましい。また、在室している人数が途中で増えた場合には、それぞれの人の方向に送風した場合の汚れ度合を汚れ検出装置20を用いて検出し、検出された汚れ度合が大きい方の人の方向から順に優先的に送風を行うことが望ましい。なお、複数の人が近傍に固まっている場合はそこを人エリアとして認識し、人と人との間を狙って送風する事で、人エリア全体を一括して空清する方が良い場合も有る。即ち予め送風する風で清浄化可能な範囲を測定しておき、人と人との距離感に応じた送風条件を定める事で、水平回転する動作回数を減らし、無駄を減らした効率の良い空気清浄が出来る。これにより、在室している人が移動した場合、または在籍している人数が増えた場合であっても、在室する人に対して不快感を与えることなく、人の周囲の空気を効率的に清浄化することが可能となる。
By the way, in the above-described wind direction control, the wind direction is adjusted based on the direction and height of the person in the room detected by the person detection control. It is also assumed to move. Therefore, it is desirable that the person detection control is always operated to constantly monitor the movement of the person in the room, and when the person in the room moves, the air blowing area for the wind direction control is changed accordingly. . In addition, when the number of people in the room increases in the middle, the degree of dirt when the air is blown in the direction of each person is detected using the dirt detection device 20, and the person with the larger degree of dirt detected is detected. It is desirable to preferentially blow in order from the direction. In addition, if there are multiple people in the vicinity, it may be better to recognize the area as a person area and to blow between the person and the person to empty the entire area. . In other words, by measuring the range that can be cleaned with the air blown in advance, and setting the air blowing conditions according to the distance between people, efficient air that reduces the number of horizontal rotations and reduces waste It can be cleaned. As a result, even if the person in the room moves or the number of people in the room increases, the air around the person is efficiently used without causing discomfort to the person in the room. Can be cleaned automatically.
以上説明したように、本実施の形態の空気清浄機によれば、吹出口5から吹出される清浄空気を直接人に当てずに且つ人の方向に送風させることができる。この際、吹出風は高速であるため、人の居るエリアから空気清浄機1の吸込口4への誘引気流が発生する。また、吹出風は清浄された空気であるため、周囲との濃度勾配による気流も発生する。これにより、人に与える吹かれ感を抑制しつつ、人の居るエリアの埃を吸込口4へ有効に誘引して人の周囲を優先的に浄化することができる。
As described above, according to the air cleaner of the present embodiment, it is possible to blow clean air blown from the outlet 5 directly in the direction of the person without directly hitting the person. At this time, since the blowing air is high speed, an induced air flow is generated from the area where the person is present to the suction port 4 of the air cleaner 1. Further, since the blown air is purified air, an air flow is also generated due to a concentration gradient with the surroundings. Accordingly, it is possible to preferentially purify the surroundings of the person by effectively attracting the dust in the area where the person is present to the suction port 4 while suppressing the feeling of blowing given to the person.
また、本実施の形態の空気清浄機によれば、風向制御において、水平回転機構15によって左右方向の風向を調整し、可動ルーバ9によって上下方向の風向を調整することとしている。これにより、風向制御を高精度に行うことができるので、在室している人に対して常に同じ効果を安定して提供することが可能となる。
Further, according to the air cleaner of the present embodiment, in the wind direction control, the horizontal wind mechanism 15 adjusts the horizontal wind direction, and the movable louver 9 adjusts the vertical wind direction. Thereby, since wind direction control can be performed with high precision, it becomes possible to always provide the same effect stably to the person who is in the room.
尚、風向制御では、整流機構13により風向を左右方向に調整することもできる。但し、整流機構13による風向の調整は人の真上へ精度よく送風することが難しく左右方向にズレが生じ易い。また、整流機構13による風向の調整は、特に左右端へ送風する際の圧力損失が大きいという特徴もある。しかしながら、整流機構13は水平回転機構15よりも制御応答性が優れている。このため、左右方向の風向制御においては、これらの機構の互いの利点を勘案しつつ適宜各機構の動作を組み合わせて実行すればよい。
In the wind direction control, the wind direction can be adjusted in the left-right direction by the rectifying mechanism 13. However, the adjustment of the wind direction by the rectifying mechanism 13 makes it difficult to accurately blow air directly above a person, and a deviation in the left-right direction is likely to occur. The adjustment of the wind direction by the rectifying mechanism 13 is also characterized by a large pressure loss particularly when the air is blown to the left and right ends. However, the rectifying mechanism 13 has better control response than the horizontal rotation mechanism 15. For this reason, in the wind direction control in the left-right direction, the operations of the mechanisms may be appropriately combined in consideration of the mutual advantages of these mechanisms.
また、本実施の形態の空気清浄機によれば、整流機構13を左右別の方向へ向けることで室内の左右方向に広がった気流を発生させることができる。これにより、複数人の人が在室し、人のいるエリアが広い場合にもその頭上への送風を広く網羅することができる。
Moreover, according to the air cleaner of the present embodiment, the air flow spreading in the left-right direction in the room can be generated by directing the rectifying mechanism 13 in the left-right direction. Thereby, even when a plurality of people are present in the room and the area where the people are present is wide, it is possible to cover a wide range of air blowing over the head.
また、本実施の形態の空気清浄機によれば、人検出装置21による人検出制御が風向制御とは個別に動作するように構成されている。このため、風向を変化させずに広い範囲で人を検知することができる。また、風向制御の実行中に常に人を見張ることができるので、人の動作に対して柔軟に対応することができる。
Further, according to the air cleaner of the present embodiment, the human detection control by the human detection device 21 is configured to operate separately from the wind direction control. For this reason, a person can be detected in a wide range without changing the wind direction. In addition, since it is possible to keep an eye on the person during the execution of the wind direction control, it is possible to flexibly cope with the movement of the person.
なお、人検出装置21による人検出制御では、センサ稼動部44による赤外線センサ40の回転駆動に水平回転機構15によるケーシング2の回転駆動を組み合わせることとしてもよい。このような動作によれば、二軸にて赤外線センサ40を可動させることができるので、同一箇所の画像を異なる方向から得ることができる。これにより、在室している人の方向及びその高さ情報だけでなく位置情報も取得することができるので、風向制御の更なる精度向上が期待できる。
In the human detection control by the human detection device 21, the rotation driving of the casing 2 by the horizontal rotation mechanism 15 may be combined with the rotation driving of the infrared sensor 40 by the sensor operating unit 44. According to such an operation, since the infrared sensor 40 can be moved in two axes, images at the same location can be obtained from different directions. As a result, not only the direction of the person in the room and the height information thereof but also the position information can be acquired, so that further improvement in the accuracy of the wind direction control can be expected.
また、本実施の形態の空気清浄機では、吸込口4がケーシング2の正面に配置されているため、水平回転機構15によって吸込口4を人の方向に向けつつ風向を人の方向に調整することができる。これにより、人を中心とした気流、すなわち吹出口5から吹き出されて人の頭上を通過し、壁伝いに背面を通過し、足元をすり抜けて吸込口4へ吸い込まれる気流の形成が容易となるので、人の周囲の埃を効率よく誘引することが可能となる。
Moreover, in the air cleaner of this Embodiment, since the suction inlet 4 is arrange | positioned in the front of the casing 2, it adjusts a wind direction to a person's direction, directing the suction inlet 4 to a person's direction by the horizontal rotation mechanism 15. FIG. be able to. Thereby, it becomes easy to form an airflow centered on a person, that is, an airflow that is blown out from the blowout port 5 and passes over the head of the person, passes through the back of the wall, passes through the feet, and is sucked into the suction port 4. Therefore, it becomes possible to attract the dust around the person efficiently.
なお、本実施の形態の空気清浄機では、吸込口4がケーシング2の正面に配置されているが、吸込口4がケーシング2の正面に配置されていない態様も想定される。そこで、このような態様の場合には、水平回転機構15の動作に整流機構13の動作を組み合わせて風向制御を実行することができる。より詳しくは、水平回転機構15によって吸込口4を人の居る方向に向け、更に整流機構13によって風向を左右方向において人の居る方向へ向けるように制御すればよい。これにより、吸込口4がケーシング2の正面に配置されていない場合であっても、人を中心とした気流を有効に発生させることができる。
In addition, in the air cleaner of this Embodiment, although the suction inlet 4 is arrange | positioned at the front of the casing 2, the aspect in which the suction inlet 4 is not arrange | positioned at the front of the casing 2 is also assumed. Therefore, in the case of such an aspect, the wind direction control can be executed by combining the operation of the rectifying mechanism 13 with the operation of the horizontal rotating mechanism 15. More specifically, the horizontal rotation mechanism 15 may control the suction port 4 in the direction in which the person is present, and the rectifying mechanism 13 may control the wind direction in the left-right direction in the direction in which the person is present. Thereby, even if it is a case where the suction inlet 4 is not arrange | positioned in the front of the casing 2, the airflow centering on a person can be generated effectively.
また、本実施の形態の空気清浄機では、汚れ検出装置20によって吸込み空気の汚れ度合を検出可能に構成されている。在室している人の周囲を浄化しても、汚れの発生源が別にある場合には室内が清浄化されたとはいえない。また、人が動くときに、動いた先が浄化されて居なければ快適性を保持することはできない。汚れ検出装置20と人検出装置21との連動はこれらの課題を解決する方法で、この動作により人が動いた先でも快適を保持することが可能となる。即ち、先ずは人を検知して人の周囲を浄化する事が必要だが、人の周囲の清浄度が所定の状態よりも改善された場合は、人が居ない方向へも向いて、汚れ検出装置20の値に応じ人以外の空間全体を浄化するように制御されて成る事が望ましい。
Further, the air cleaner of the present embodiment is configured so that the dirt detection device 20 can detect the degree of dirt in the intake air. Even if the surroundings of a person in the room are purified, it cannot be said that the room has been cleaned if there is another source of contamination. In addition, when a person moves, comfort cannot be maintained unless the moving destination is purified. Interlocking between the dirt detection device 20 and the human detection device 21 is a method for solving these problems, and it is possible to maintain comfort even when a person moves by this operation. In other words, it is necessary to first detect people and clean the surroundings of people, but if the cleanliness of people's surroundings is improved from the specified state, it will turn to the direction where there are no people and detect dirt. It is desirable to be controlled so as to purify the entire space other than humans according to the value of the device 20.
ところで、人検出装置21では、例えば人が椅子等に座っている場合に、足元を検知することができないことが想定される。また、人検出装置21では、例えば家具に体が隠れてしまう場合には、誤って人が居ないと判断してしまうことが想定される。このような人検出装置21による誤検出があると、意図する風向制御が行われずに空気清浄動作を効率よく行うことができないおそれがある。そこで、本実施の形態1の空気清浄機では、家の間取り又は障害物に関する室内情報を入力する手段を備える構成としてもよい。より詳しくは、例えば室内の家具、窓又は扉の位置、又は部屋の広さ等の室内情報を入力しておく室内情報取得手段を備え、この入力された情報を用いて風向制御における風向を補正することとしてもよい。
By the way, it is assumed that the human detection device 21 cannot detect a foot when a person is sitting on a chair or the like. Further, in the human detection device 21, for example, when a body is hidden in furniture, it is assumed that it is erroneously determined that there is no person. If there is such a false detection by the human detection device 21, there is a possibility that the intended air direction control is not performed and the air cleaning operation cannot be performed efficiently. Therefore, the air cleaner according to the first embodiment may be configured to include means for inputting room information about the floor plan of the house or an obstacle. More specifically, for example, room information acquisition means for inputting room information such as indoor furniture, the position of a window or door, or the size of a room is provided, and the wind direction in the wind direction control is corrected using the input information. It is good to do.
なお、上述した室内情報取得手段は、データを直接入力する形態に限らず、例えば、人検出装置21に超音波センサ等を合わせて持たせることとし、間取り情報をセンシングする構成でもよい。また、公知の通信手段によって、スマートフォン又はパソコン等の外部機器と連動可能な構成とし、これらの外部機器から通信によって間取り情報を取得する形態でもよい。また、通信手段には、他の製品からのセンシング情報又は動作情報、位置情報を受信可能な機能を持たせることが望ましい。これにより、例えばエアコンにて高い位置から得た人情報を取得し、家具に隠れた人を見つけるような動作が可能となる。また、冷蔵庫、掃除機、電子レンジ、又はTV等の動作情報又は位置情報を取得し、人以外の熱源を予め把握しておくことで、誤検知を防止することも可能となる。
Note that the above-described room information acquisition means is not limited to a mode in which data is directly input, and for example, the person detection device 21 may be provided with an ultrasonic sensor or the like to sense floor plan information. Moreover, it may be configured to be able to link with an external device such as a smartphone or a personal computer by a known communication means, and the floor plan information may be acquired by communication from these external devices. Further, it is desirable that the communication means has a function capable of receiving sensing information, operation information, and position information from other products. Thereby, for example, it is possible to acquire human information obtained from a high position with an air conditioner and to find a person hidden in the furniture. In addition, it is possible to prevent erroneous detection by acquiring operation information or position information of a refrigerator, a vacuum cleaner, a microwave oven, a TV, or the like and grasping heat sources other than people in advance.
1 空気清浄機、2 ケーシング、2A 隔壁、3 台座、4 吸込口、5、5A、5B 吹出口、6 送風手段、6A ファン、6B モータ、7,7A,7B 風路、8 清浄化手段、9 可動ルーバ(風向可変機構)、10 ルーバ駆動部(風向可変機構)、11 開口可変機構、12 開口駆動部、13 整流機構(風向可変機構)、14 整流駆動部(風向可変機構)、15 水平回転機構(風向可変機構)、20 汚れ検出装置(汚れ度合情報検出手段)、21 人検出装置(人検出手段)、22 操作部、23 制御手段、40 赤外線センサ、41 多素子受光ユニット、41a~41h 受光素子(検出素子)、42 集光レンズ、43,43a~43h 配向視野角、44 センサ稼動部(センサ動作機構)、50 風向ベクトル、50a 鉛直方向ベクトル、50b 前後方向ベクトル、50c 左右方向ベクトル
1 Air purifier, 2 casing, 2A partition, 3 base, 4 inlet, 5, 5A, 5B outlet, 6 blower means, 6A fan, 6B motor, 7, 7A, 7B air passage, 8 cleaner means, 9 Movable louver (wind direction variable mechanism), 10 louver drive unit (wind direction variable mechanism), 11 aperture variable mechanism, 12 aperture drive unit, 13 rectifier mechanism (wind direction variable mechanism), 14 rectifier drive unit (wind direction variable mechanism), 15 horizontal rotation Mechanism (wind direction variable mechanism), 20 dirt detection device (dirt degree information detection means), 21 human detection device (person detection means), 22 operation unit, 23 control means, 40 infrared sensor, 41 multi-element light receiving unit, 41a to 41h Light receiving element (detecting element), 42 condensing lens, 43, 43a to 43h, orientation viewing angle, 44 sensor operating part (sensor operating mechanism), 50 wind Vector, 50a vertical vector, 50b longitudinal direction vector, 50c left-right direction vector
Claims (11)
- 室内の空気を吸込む吸込口と当該空気を吹出す吹出口とを有するケーシングと、
前記吸込口から前記ケーシングの内部に空気を吸込み、当該空気を前記吹出口から吹出す送風手段と、
前記ケーシングの内部を流れる空気を清浄化する清浄化手段と、
前記吹出口から吹出す吹出し空気の風向を可変させる機能を有する風向可変機構と、
人の居る方向を検出するまたは検出値によって人の居る方向を推定する人検出手段と、
前記送風手段、及び前記風向可変機構を制御する制御手段と、
を備え、
前記制御手段は、前記人検出手段により室内に居る人が検出されたときに、前記風向の最大風速箇所の風向ベクトルの前後方向成分は人の居る方向を向き、前記風向ベクトルの全方向成分の合計ベクトルは人の居ない方向を向くように、制御して成る風向制御機能を有した空気清浄機。 A casing having a suction port for sucking indoor air and a blow-out port for blowing the air;
Blowing means for sucking air into the casing from the suction port and blowing the air from the blowout port;
Cleaning means for cleaning air flowing inside the casing;
A wind direction varying mechanism having a function of varying the wind direction of the blown-out air blown from the blowout port;
A person detecting means for detecting the direction of the person or estimating the direction of the person by the detected value;
Control means for controlling the air blowing means and the wind direction varying mechanism;
With
The control means, when a person in the room is detected by the person detection means, the front-rear direction component of the wind direction vector at the maximum wind speed location of the wind direction is the direction of the person, and the omnidirectional component of the wind direction vector An air purifier with a wind direction control function that is controlled so that the total vector faces in the direction where no one is present. - 前記人検出手段は人の居る方向と合わせ、人の高さを検知する又は推定する機能を有し、前記制御手段は、吹出し空気を前記風向可変機構によって、前記人検出手段が検知した人の高さよりも上方に向かって吹くように制御して成る請求項1に記載の空気清浄機。 The human detection means has a function of detecting or estimating the height of a person in accordance with the direction in which the person is present, and the control means is configured to detect the blown air by the wind direction variable mechanism and detect the person detected by the human detection means. The air cleaner according to claim 1, wherein the air cleaner is controlled to blow upward from a height.
- 前記風向可変機構は、
前記吹出口を略水平方向に回転させる水平回転機構と、
前記吹出口から吹出す吹出し空気の風向を上下方向に変更可能な可動ルーバと、
を備えて成る請求項1又は請求項2に記載の空気清浄機。 The wind direction variable mechanism is
A horizontal rotation mechanism for rotating the outlet in a substantially horizontal direction;
A movable louver capable of changing the wind direction of the blown-out air blown from the blowout port in the vertical direction;
The air cleaner according to claim 1 or 2, comprising the above. - 前記人検出手段は、
人の居る方向及び当該人の高さを検出する人検出センサと、
前記人検出センサの向きを変更するセンサ動作機構と、を備え、
前記制御手段は、前記センサ動作機構を前記風向可変機構と独立して制御する請求項1から請求項3の何れか1項に記載の空気清浄機。 The person detecting means is
A human detection sensor for detecting the direction of the person and the height of the person;
A sensor operating mechanism for changing the orientation of the human detection sensor,
The air cleaner according to any one of claims 1 to 3, wherein the control unit controls the sensor operation mechanism independently of the wind direction variable mechanism. - 前記人検出手段は、それぞれ個別に人を検出可能な検出素子であって上下方向に並べて配置された複数の検出素子を備えて成るとともに前記センサ動作機構は水平回転動作を行う請求項4に記載の空気清浄機。 5. The human detection unit according to claim 4, wherein each of the human detection means includes a plurality of detection elements that are each capable of individually detecting a person and are arranged in the vertical direction, and the sensor operation mechanism performs a horizontal rotation operation. Air purifier.
- 前記水平回転機構は前記吹出口と共に前記吸込口も水平方向に回転させる機能を更に備え、
前記制御手段は、前記人検出手段により室内に居る人が検出されたときに、前記吸込口を水平方向において前記人が居る方向に向けるように前記水平回転機構を制御して成る請求項3に記載の空気清浄機。 The horizontal rotation mechanism further includes a function of rotating the suction port together with the air outlet in the horizontal direction,
The said control means controls the said horizontal rotation mechanism to orient | assign the said suction inlet to the direction where the said person exists in a horizontal direction, when the person who exists in a room is detected by the said person detection means. The air cleaner described. - 前記吸込口から吸込まれる空気の汚れ度合の指標となる情報を検出する汚れ度合情報検出手段を備え、
前記制御手段は、前記風向制御機能の実行中に前記汚れ度合が閾値以下となった場合に前記風向制御機能を終了する構成とした請求項6に記載の空気清浄機。 A degree of dirt information detecting means for detecting information serving as an index of the degree of dirt of air sucked from the suction port;
The air cleaner according to claim 6, wherein the control unit is configured to end the wind direction control function when the dirt level becomes a threshold value or less during execution of the wind direction control function. - 前記制御手段は、前記風向制御機能が終了された後、前記人検出手段により前回と異なる条件の人の居る方向及び当該人の高さが検出されたときに、検出された前記人の居る方向及び当該人の高さに基づいて前記風向制御機能を実行する構成とした請求項7に記載の空気清浄機。 After the wind direction control function is terminated, the control means detects the direction of the person detected when the person detection means detects the direction of the person with different conditions and the height of the person. The air cleaner according to claim 7, wherein the wind direction control function is executed based on the height of the person.
- 前記制御手段は、前記風向制御機能が終了された後、前記吸込口の方向を水平方向に回転させて前記汚れ度合を検出し、閾値よりも大きい汚れ度合が検出されたときに、前記風向を水平方向において前記吸込口の方向に向けて風向を制御する構成とした請求項7に記載の空気清浄機。 After the wind direction control function is finished, the control means detects the degree of dirt by rotating the direction of the suction port in the horizontal direction, and when the degree of dirt larger than a threshold is detected, the control unit changes the wind direction. The air cleaner according to claim 7, wherein the air direction is controlled in the horizontal direction toward the suction port.
- 室内の間取り又は障害物に関する室内情報を取得する室内情報取得手段を備え、
前記制御手段は、前記室内情報に基づいて前記送風手段及び前記風向可変機構を制御する請求項1から請求項9の何れか1項に記載の空気清浄機。 Room information acquisition means for acquiring room information about indoor floor plans or obstacles,
The air cleaner according to any one of claims 1 to 9, wherein the control unit controls the air blowing unit and the wind direction varying mechanism based on the room information. - 前記室内情報取得手段は、室内に設置されている外部機器から前記室内情報を取得するよう構成されて成る請求項10に記載の空気清浄機。 The air cleaner according to claim 10, wherein the room information acquisition means is configured to acquire the room information from an external device installed in the room.
Priority Applications (4)
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PCT/JP2014/064419 WO2015181950A1 (en) | 2014-05-30 | 2014-05-30 | Air cleaner |
CN201480077942.8A CN106164595B (en) | 2014-05-30 | 2014-05-30 | Air purifier |
JP2016523056A JP6249096B2 (en) | 2014-05-30 | 2014-05-30 | Air cleaner |
TW103125957A TWI577940B (en) | 2014-05-30 | 2014-07-30 | Air purifier |
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PCT/JP2014/064419 WO2015181950A1 (en) | 2014-05-30 | 2014-05-30 | Air cleaner |
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CN106164595A (en) | 2016-11-23 |
TWI577940B (en) | 2017-04-11 |
TW201544768A (en) | 2015-12-01 |
CN106164595B (en) | 2019-05-17 |
JPWO2015181950A1 (en) | 2017-04-20 |
JP6249096B2 (en) | 2017-12-20 |
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