JP2012154526A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner that collects dust efficiently according to a use environment by determining a position of a person in a room or a kind of movement the person makes and controlling a louver for blown-out airflow.SOLUTION: A temperature difference ΔT is calculated based on detection signals of a thermopile 8 and a thermistor 7, and the ΔT is considered to determine the presence of a person in the detection area and a kind of movement the person makes to thereby control the movement of the louver 6, thus achieving an air cleaner that collects dust efficiently according to the use environment.

Description

  The present invention relates to an air purifier used in a general home or office.

  Conventionally, this type of air purifier is known in which a human detection sensor is mounted and the amount of driving air is increased or decreased depending on the presence or absence of a person (for example, see Patent Document 1).

  Hereinafter, the air cleaner will be described with reference to FIGS.

  As shown in FIG. 10, an intake grill 102 is disposed on the front surface and a blow-out grill 103 is disposed on the upper surface. A dust collection filter 104 and a fan motor 105 are provided in a main body 101 of the intake grill 102. The air sucked from 102 is collected by the dust collecting filter 104, and purified air is blown out from the blowing grill 103.

  An operation unit 106 and a human detection unit 107 are provided on the upper surface of the main body 101, and an air dirt detection unit 108 is provided on a side surface of the main body 101. The control unit 109 controls the number of rotations of the fan motor 105 based on inputs from the operation unit 106, the person detection unit 107, or the air dirt detection unit 108.

  In the above configuration, as shown in FIG. 11, the control unit 109 stops based on the number of detections detected from the human detection unit 107 per minute, and the fan motor 105 stops if it is 0, and if it is 1 to 4 times. If the air flow is weak and 5 times or more, the high air flow operation is started.

JP-A-1-163546

  In such a conventional air purifier, since the operation air volume is determined only by the number of human detections, the operation is wasted when the type of human operation is unknown and no dirt is generated. It had the problem that. In addition, there is a problem that it takes a long time to perform a dust collection operation on the entire room without knowing where the person is.

  Therefore, the present invention solves such a conventional problem, and since the louver control of the blown airflow is performed after judging the place where the person is in the room and the type of operation, it is efficient in accordance with the use environment. It aims at providing the air cleaner which can perform dust collection operation.

  In order to achieve the above object, an air cleaner according to the present invention has a main body case having an air inlet and an air outlet, an air purifying means provided in the main body case, and the air purifying means for removing indoor air from the air inlet. The air is sucked into the main body case through the air outlet, and the air passage is exhausted into the room from the exhaust port. The louver controls the airflow exhausted from the exhaust port into the room, and the temperature around the main body case is detected. In an air purifier comprising a thermistor, a thermoelectromotive force type temperature sensor having at least four detection areas and measuring the temperature of each detection area, and a control unit for controlling the operation of the louver, the control unit includes: A temperature difference ΔT is calculated from the detection signal of the thermoelectromotive force type temperature sensor and the detection signal of the thermistor, and the presence of the person in the detection area of the thermoelectromotive force type temperature sensor and the type of operation are determined from this ΔT. And the operation of the louver is controlled.

  By this means, since the louver control of the blown airflow is performed after judging the place where the person is in the room and the type of operation, an air cleaner capable of performing an efficient dust collection operation according to the use environment can be obtained.

  Moreover, the air cleaner of the present invention is provided with indoor state monitoring means for detecting the indoor state, and the control unit controls the air volume of the blowing means based on information from the indoor state monitoring means.

  By this means, the louver control and the air volume control of the blown airflow are performed after judging the indoor state, the place where the person is in the room, and the type of operation, so that it is possible to perform an efficient dust collection operation according to the use environment. An air purifier is obtained.

  The air purifier of the present invention includes a tatami mat number setting means for setting the size of the room as the indoor state monitoring means, and the control unit corrects ΔT according to the set value of the tatami mat number setting means, and the air volume of the blower means Is controlled.

  By this means, the louver control and air volume control of the blown airflow are performed after judging the size of the room, the place where the person is in the room, and the type of operation, so that it is possible to perform an efficient dust collection operation according to the use environment. An air purifier is obtained.

  The air cleaner according to the present invention further includes floor condition setting means for setting the floor condition as the indoor condition monitoring means, and the control unit controls the air volume of the blowing means according to the set value of the floor condition setting means. It is a thing.

  By this means, the louver control and air volume control of the blown airflow are performed after judging the state of the indoor floor surface, the place where the person is in the room, and the type of operation, so the dust collection operation is performed efficiently according to the usage environment. An air cleaner that can be obtained is obtained.

  The air cleaner of the present invention includes an illuminance sensor that detects indoor brightness as the indoor state monitoring means, and the control unit determines the type of human action based on the detection signal of the illuminance sensor, and the air volume of the blower means Is controlled.

  By this means, the louver control and the air volume control of the blown airflow are performed after judging the indoor brightness, the place where the person is in the room and the type of operation, so that it is possible to perform an efficient dust collection operation according to the use environment. An air purifier is obtained.

  In the air cleaner of the present invention, the control unit reads the detection signal of the illuminance sensor after a certain time from the change in brightness, determines the type of human action, and controls the air volume of the blowing means. is there.

  By this means, it is possible to obtain an air cleaner that can prevent the type of human movement from being judged by a temporary change in indoor brightness.

  Moreover, the air cleaner of this invention is provided with the display part which displays (DELTA) T of each detection area of a thermoelectromotive force type temperature sensor.

  By this means, the user can know the operating state of the louver control of the air cleaner, and an easy-to-use air cleaner can be obtained.

  In the air cleaner of the present invention, the display unit displays at least three colors.

  By this means, the user can know the operating state of the louver control of the air cleaner, and an easy-to-use air cleaner can be obtained.

  According to the present invention, a main body case having an intake port and an exhaust port, air cleaning means provided in the main body case, and indoor air from the intake port are sucked into the main body case via the air cleaning means. And at least four or more detections, an air blowing means for exhausting air into the room from the exhaust port, a louver for controlling the air flow exhausted from the exhaust port into the room, a thermistor for detecting the temperature around the body case In an air purifier having a thermoelectromotive force type temperature sensor that has an area and measures the temperature of each detection area and a control unit that controls the operation of the louver, the control unit detects the thermoelectromotive force type temperature sensor. The temperature difference ΔT is calculated from the signal and the detection signal of the thermistor, and the presence of the person in the detection area of the thermoelectromotive force type temperature sensor and the type of operation are determined from the ΔT to control the operation of the louver. By doing so, the air cleaner that can perform efficient dust collection operation according to the use environment because the louver control of the blown airflow is performed after judging the place where the person is in the room and the type of operation. can get.

1 is an external perspective view of the air cleaner according to Embodiment 1 of the present invention. Block diagram of the air purifier Thermopile detection area diagram of the air cleaner Correlation diagram of operation type and louver operation for ΔT of the same air cleaner Block diagram of Embodiment 2 of the present invention Correlation diagram of ΔT correction value and air volume for tatami mats of the same air cleaner Correlation diagram of air volume against floor condition of the air cleaner Correlation diagram of operation type and air flow for illuminance sensor of the same air cleaner The figure which shows the display content with respect to (DELTA) T of Embodiment 3 of this invention. External perspective view of a conventional air purifier Correlation diagram of operating air volume against the same number of detections

  The air cleaner according to claim 1 of the present invention includes a main body case having an intake port and an exhaust port, air cleaning means provided in the main body case, and indoor air from the intake port via the air cleaning means. And a louver for controlling the airflow exhausted from the exhaust port into the room, a thermistor for detecting the temperature around the body case, The air cleaner includes a thermoelectromotive force type temperature sensor that has at least four detection areas and measures the temperature of each detection area, and a control unit that controls the operation of the louver. A temperature difference ΔT is calculated from the detection signal of the electromotive force type temperature sensor and the detection signal of the thermistor, and from this ΔT, the presence of the person in the detection area of the thermoelectromotive force type temperature sensor and the type of operation are determined. -Control the operation of the bar, and the louver control of the blown airflow is performed after judging the place where the person is in the room and the type of operation, so the dust collection operation must be performed efficiently according to the usage environment. Has the effect of being able to.

  Further, the air cleaner according to claim 2 of the present invention includes an indoor state monitor means for detecting an indoor state, and the control unit controls the air volume of the air blowing means based on information from the indoor state monitor means. The louver control and air volume control of the blown airflow are performed after judging the indoor conditions, the place where people are in the room, and the type of operation, so it is possible to perform efficient dust collection operation according to the usage environment It has the effect of being able to.

  According to a third aspect of the present invention, the air purifier includes tatami number setting means for setting the size of the room as the indoor state monitoring means, and the control unit corrects ΔT according to the set value of the tatami number setting means. The air flow of the air blowing means is controlled, and the louver control and air flow control of the blown air flow are performed after judging the size of the room, the place where people are in the room and the type of operation, so it matches the usage environment It has the effect that efficient dust collection operation can be performed.

  According to a fourth aspect of the present invention, the air purifier includes floor state setting means for setting the state of the floor surface as the indoor state monitoring means, and the control unit controls the air volume of the blowing means according to the set value of the floor state setting means. The airflow louver control and air volume control are performed after judging the condition of the indoor floor surface, the location of people in the room, and the type of operation. It has the effect that a good dust collection operation can be performed.

  The air cleaner according to claim 5 of the present invention includes an illuminance sensor that detects the brightness of the room as the indoor state monitoring means, and the control unit determines the type of human action based on the detection signal of the illuminance sensor. The air flow of the air blowing means is controlled, and the louver control and air flow control of the blown airflow are performed after judging the indoor brightness, the place where people are in the room and the type of operation, so it matches the usage environment It has the effect that efficient dust collection operation can be performed.

  In the air cleaner according to claim 6 of the present invention, the control unit reads the detection signal of the illuminance sensor after a predetermined time from the change in brightness, determines the type of human action, and controls the air volume of the blowing means. Thus, there is an effect that it is possible to prevent the determination of the type of human action based on a temporary change in the brightness of the room.

  The air cleaner according to claim 7 of the present invention is provided with a display unit for displaying ΔT of each detection area of the thermoelectromotive force type temperature sensor, and the user can control the louver of the air cleaner. It is possible to know the driving state of the vehicle, and it has an effect that it is easy to use.

  In the air cleaner according to claim 8 of the present invention, the color of the display unit is displayed by at least three or more, and the user knows the operating state of the louver control of the air cleaner. And has the effect of being easy to use.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the main body 1 of the air purifier is formed in a substantially box shape, an air inlet 2 is formed on the front side of the main body 1 and an air outlet 3 is formed on the upper part, and the air that cleans the air in the main body 1 is formed. A filter 4 as purification means and a fan motor 5 as air blowing means for sucking indoor air from the intake port 2 and exhausting the air from the exhaust port 3 through the filter 4 to the room are provided. Further, a louver 6 that controls the airflow exhausted from the exhaust port 3 into the room 1 at the top of the main body 1, a thermistor 7 that measures the temperature around the main body 1 on the side of the main body 1, and a thermoelectromotive temperature sensor on the front surface of the main body 1. A thermopile is provided. A microcomputer 9 as a control unit is provided inside the main body 1.

  As shown in FIG. 3, the thermopile 8 includes four detection areas A10, a detection area B11, a detection area C12, and a detection area D13.

  In the above configuration, as shown in FIGS. 2 and 4, the microcomputer 9 computes the detection signals from the thermistor 7 and the thermopile 8 to calculate the temperature difference ΔT. ΔT is calculated for each site area. In all of detection area A10, detection area B11, detection area C12, and detection area D13, if ΔT is 0 ° C., it is determined that there is no person, the type of operation does not apply, and microcomputer 9 performs louver 6 operation. The control is a closing operation (1). If only one detection area among the four detection areas is 0 ° C. <ΔT ≦ 10 ° C., for example, if only detection area A10 is detected, it is determined that there is a person and the type of operation is determined to be a static level operation, and louver 6 The control of the operation is the operation (2) for facing and fixing to the detected detection area A10. If only two detection areas of the four detection areas are 0 ° C. <ΔT ≦ 10 ° C., for example, when detection is performed in the detection area A10 and the detection area B11, it is determined that there is a person and the type of movement is the movement at the walking level. The control of the determination and the louver 6 operation is an operation (3) for fixing between the detected detection area A10 and the detection area B11. In the case of 0 ° C <ΔT ≦ 10 ° C in three or more detection areas among the four detection areas, for example, in the case of detection in all the detection areas, it is determined that there is a person and the type of operation is an operation at the foot level. The control of the determination and the louver 6 operation is an operation (4) of swinging between the detected detection areas. If only one detection area of the four detection areas is 10 ° C. <ΔT, for example, if only detection area A10 is detected, it is determined that there is a person and the type of operation is determined to be an exercise level operation, and the louver 6 operation is performed. The control is an operation (5) which is directed to the detected detection area A10 and swings within the detection area A10. If only 2 detection areas out of 4 detection areas are 10 ° C. <ΔT, for example, detection is performed in detection area A10 and detection area B11, it is determined that there is a person and the type of motion is determined as motion level motion, louver The control of the six actions is an action (6) of swinging between the detected detection area A10 and the detection area B11. If 10 ° C <ΔT in three or more detection areas among the four detection areas, for example, if detection is performed in all detection areas, it is determined that there is a person and the type of operation is determined to be a level of operation that applies a vacuum cleaner. The control of the louver 6 operation is an operation (7) of swinging within the maximum driving range in which the louver 6 can be driven.

  As described above, the louver control of the blown airflow is performed after determining the place where the person is in the room and the kind of the operation, so that it is possible to perform an efficient dust collection operation according to the use environment.

(Embodiment 2)
The present embodiment is different from the first embodiment only in the control method, and the same components are given the same reference numerals and detailed description thereof is omitted.

  As shown in FIG. 5, a tatami mat setting means 14 for setting the size of the room, a floor condition setting means 15 for setting the floor condition, and an illuminance sensor 16 for detecting the brightness of the room as the indoor condition monitoring means. I have.

  In the above configuration, when the number of tatami mats set by the tatami mat setting means 14 is less than 6 tatamis as shown in FIG. 6, the microcomputer 9 sets −2 ° C. to ΔT calculated by the detection signals from the thermistor 7 and the thermopile 8. Calculate with correction to add In the case of 6 tatami mats or more and less than 12 tatami mats, the correction value of ΔT is calculated as zero. Furthermore, the microcomputer 9 controls the air volume of the fan motor 5 in accordance with the louver 6 operation determined by ΔT calculated by correction and the number of tatami mats of the room size.

  As shown in FIG. 7, when the floor surface set by the floor condition setting means 15 is a tatami mat, the microcomputer 9 stops when the louver 6 operation is (1), weak when the operation is (2), The air volume of the fan motor 5 is controlled by a middle notch at (3) and (5), a strong notch at (4) and (6), and a turbo notch at (7).

  As shown in FIG. 8, when the indoor brightness detected by the illuminance sensor 16 is bright, the microcomputer 9 determines that the type of operation is an operation when a person is waking up, and determines the air volume of the fan motor 5. Control. If the detected indoor brightness is dark, the microcomputer 9 determines that the type of operation is an operation that occurs at bedtime, and controls the air volume of the fan motor 5. Further, the microcomputer 9 provides a delay of a predetermined time after the change in the detection signal of the illuminance sensor 16, for example, a read prohibition period of 5 seconds, and performs control by the detection signal after 5 seconds.

  As described above, the louver control and the air volume control of the blown airflow are performed after determining the size of the room, the place where the person is in the room, and the type of operation, so that it is possible to perform an efficient dust collection operation according to the use environment.

  In addition, the louver control and air volume control of the blown airflow are performed after judging the condition of the indoor floor surface, the place where the person is in the room, and the type of operation, so it is possible to perform an efficient dust collection operation according to the usage environment. .

  Moreover, since the louver control and the air volume control of the blown airflow are performed after judging the indoor brightness, the place where the person is in the room, and the type of operation, it is possible to perform an efficient dust collection operation according to the use environment.

  In addition, it is possible to prevent the type of human action from being determined based on a temporary change in the brightness of the room.

(Embodiment 3)
The present embodiment is different from the first or second embodiment only in the control method, and those having the same configuration are denoted by the same reference numerals and detailed description thereof is omitted.

  As shown in FIG. 9, a 7-segment LED, display A, display B, display C, and display D are provided as display units for displaying ΔT for each detection area, and the colors displayed according to ΔT are blue, orange, and red. indicate.

  Since ΔT of each detection area is displayed in three colors in this way, the user can know the operating state of the louver control of the air cleaner.

  Since it is possible to improve the usability by controlling the louver of the blown airflow after judging the place where the person is in the room and the type of operation, it can be applied to a humidifier and a dehumidifier.

1 Body 2 Inlet 3 Exhaust 4 Filter (Air purification means)
5 Fan motor (air blowing means)
6 louvers 7 thermistors 8 thermopile (thermo-electromotive force type temperature sensor)
9 Microcomputer (control unit)
10 Detection area A
11 Detection area B
12 Detection area C
13 Detection area D
14 tatami mat setting means 15 floor condition setting means 16 illuminance sensor

Claims (8)

A main body case having an intake port and an exhaust port; air purifying means provided in the main body case; indoor air from the air intake port is sucked into the main body case via the air purifying means; Each detection unit has at least four or more detection areas, a ventilation means in the air path exhausted into the room, a louver that controls the airflow exhausted from the exhaust port into the room, a thermistor that detects the temperature around the body case In an air purifier having a thermoelectromotive force type temperature sensor for measuring the temperature of an area and a control unit for controlling the operation of the louver, the control unit detects a detection signal of the thermoelectromotive force type temperature sensor and the detection of the thermistor. A temperature difference ΔT is calculated from the signal, and the presence of the person in the detection area of the thermoelectromotive force type temperature sensor and the type of operation are determined from the ΔT, and the operation of the louver is controlled. Air purifier. 2. The air purifier according to claim 1, further comprising an indoor state monitoring unit for detecting an indoor state, wherein the control unit controls an air volume of the blower unit based on information from the indoor state monitoring unit. The tatami mat setting means for setting the size of the room as the indoor state monitoring means is provided, and the control unit corrects ΔT according to the set value of the tatami mat number setting means and controls the air volume of the air blowing means. 2. The air cleaner according to 2. 3. The air purifier according to claim 2, further comprising floor condition setting means for setting a floor surface condition as indoor condition monitoring means, wherein the control unit controls the air volume of the blower means according to a set value of the floor condition setting means. Machine. An illuminance sensor that detects indoor brightness is provided as the indoor state monitoring means, and the control unit determines the type of human action based on a detection signal of the illuminance sensor, and controls the air volume of the blower means. 2. The air cleaner according to 2. 6. The air cleaner according to claim 5, wherein the control unit reads the detection signal of the illuminance sensor after a predetermined time from the change in brightness, determines the type of human action, and controls the air volume of the blowing means. The air cleaner according to any one of claims 1 to 6, further comprising a display unit that displays ΔT of each detection area of the thermoelectromotive force type temperature sensor. 8. The air cleaner according to claim 7, wherein the display unit displays at least three colors.

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