JP5913711B1 - Air purifier and control method thereof - Google Patents

Abstract

An air purifier that simultaneously swings up and down and swings left and right and a control method thereof. When a 3D swing operation in which both a vertical swing motor and a left and right swing motor are operated simultaneously is selected by a user, the vertical swing motor and the left and right swing motor are started to be operated in the air by a sensor. When at least one of the dust concentration and odor concentration is detected and at least one of the detected dust concentration and odor concentration is equal to or greater than a predetermined value, the vertical swing motor is operated at the swing angle at which at least one of the dust concentration and odor concentration is detected. When the operation of the left / right swing motor is stopped and at least one of the dust concentration and odor concentration in the air is detected again by the sensor and at least one of the dust concentration and odor concentration falls below a predetermined value, the vertical swing motor And restart the operation of the left and right swing motor. [Selection] Figure 6

Description

  The present invention relates to an air cleaner that simultaneously swings up and down and swings left and right, and a control method thereof.

  There is known an air cleaner provided with a dust sensor that takes in air from the outside and detects dust moving in the internal space (for example, Patent Document 1). However, a general air cleaner is a stationary type, and an intake port is provided in a portion close to the floor surface. Therefore, when grilling meat on a table or sitting on a chair and smoking cigarettes, the source of smoke and odor is far from the air cleaner inlet and the room is filled with smoke and odor. Otherwise, the dust sensor does not respond, or the dust sensor response is delayed.

JP2015-124914A

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an air cleaner that solves the above-described problems and that quickly exhibits an air purifying function with respect to smoke and odor sources, and a control method therefor.

The gist of the present invention is as follows.
An air purifier unit having blades;
A blade motor for rotating the blade;
A vertical swing motor for swinging the air purifier unit up and down;
A left and right swing motor for swinging the air purifier unit left and right;
Having at least one of a function as a dust sensor and a function as an odor sensor, and a sensor provided in the air cleaner unit;
A method for controlling the operation of an air cleaner having
When 3D swing operation in which both the vertical swing motor and the left and right swing motor are operated simultaneously is selected by the user,
Start the operation of the vertical swing motor and the horizontal swing motor,
The sensor detects at least one of dust concentration and odor concentration in the air,
When at least one of the detected dust concentration and odor concentration is equal to or greater than a predetermined value, the operation of the vertical swing motor and the left and right swing motor is stopped at the swing angle at which at least one of the dust concentration and odor concentration is detected. And
Again, the sensor detects at least one of dust concentration and odor concentration in the air,
When at least one of the dust concentration and the odor concentration is less than a predetermined value, the operation of the vertical swing motor and the left and right swing motor is resumed.
It is characterized by that.

The method of the present invention increases the rotational speed of the blade motor when at least one of the detected dust concentration and odor concentration is a predetermined value or more.
It is preferable.

  The air cleaner of the present invention performs the method described above.

The air cleaner of the present invention further includes a slide pipe that raises and lowers the air cleaner unit.
It is preferable.

It is a figure which shows the air cleaner of this invention. It is a figure which shows the up-and-down swing operation | movement of the air cleaner of this invention. It is a figure which shows an example of the locus | trajectory of an air cleaner unit. It is a block diagram of the control circuit of the air cleaner of this invention. It is a figure which shows an example of the operation panel of the air cleaner of this invention. It is a flowchart which shows the control method of 3D swing operation .

Hereinafter, the air cleaner of the present invention will be described in detail with reference to the drawings.
FIG. 1 (a) is a front view of the air cleaner of the present invention, FIG. 1 (b) is a side view of the air cleaner, and FIG. 1 (c) is a cross-sectional view of the main part of the air cleaner. is there.
The air purifier 100 of the present invention includes an air purifier unit 20, a motor case portion 30 to which the air purifier unit 20 is attached, a support portion 40 that supports the motor case portion 30, and a support portion 40 that slides up and down. A slide pipe 50 that is connected to the slide pipe 50, a base 60 that is connected to the support 51, and a display / operation panel 70 that is provided on the base 60 and controls the operation of the air purifier 100. And a sensor 80 provided in the air purifier unit 20.

  The sensor 80 utilizes a function as a dust sensor that detects dust concentration (dust level) in the air and an odor sensor that detects odor concentration (odor level), for example, an oxidation-reduction reaction of odor molecules in the air. And a function as a metal oxide semiconductor sensor for detecting reducing odor. Hereinafter, the sensor 80 will be described as a dust sensor, but the operation of the air cleaner can be controlled similarly as a odor sensor.

The air cleaner unit 20 includes a front cover 21a, a rear cover 21b, a blade 22 (for example, a sirocco fan), and a filter set 23. The filter set 23 includes, for example, a dust collection filter 23a (such as a HEPA filter defined in JISZ8122), a deodorizing filter 23b (such as activated carbon), and a filter cover 23c that fixes the filters 23a and 23b.
An intake port q is formed between the front cover 21a and the rear cover 21b on the outer periphery of the front cover 21a, and an exhaust port h is formed above the rear cover 21b. The air is sucked into the air purifier unit 20 through the air inlet q as shown by the arrow and exhausted through the exhaust port h. The intake port q and the exhaust port h are not limited to the illustrated embodiment.
A sensor 80 is disposed inside the air purifier unit 20. The arrangement position of the sensor 80 is not limited to the illustrated embodiment.

  The motor case 30 accommodates a blade motor 32 for rotating the blade 22 around the rotation shaft 31. The motor case portion 30 is sandwiched by the support portion 40 and is rotatably supported by rotation shafts 41 disposed on both sides of the support portion 40. The support unit 40 is rotatably supported by the slide pipe 50 and performs a left-right swing operation.

As shown in FIG. 2, the air cleaner 100 moves up and down between about 60 ° upward (about 60 ° elevation) and about 10 ° downward (about 10 ° depression angle) with respect to the horizontal direction. The air cleaner unit 20 can be swung up and down by the swing motor m. Although not shown, the air purifier unit 20 can be swung left and right by a left and right swing motor at about 70 ° to the left and right (between −70 ° and + 70 °).
Note that the angle of the swing operation in the vertical direction and the horizontal direction is not limited to this angle, and an elevation angle of about 90 ° is also possible. However, when the air cleaner 100 is installed near a wall, the elevation angle is preferably about 60 °. This is because when the elevation angle is about 90 °, the exhaust port h faces the wall surface, and the exhaust air bounces off the wall surface and is sucked into the air cleaner 100, so that the air cleaning efficiency may be lowered.
As shown in FIG. 2 (a), in the state where the air purifier unit 20 faces upward (the elevation angle is set to 60 °), the air above the room is mainly sucked, so that the air cleaner unit 20 is relatively floating in the air. Light particulates can be collected.
In addition, as shown in FIG. 2B, when the air purifier unit 20 faces the floor (the depression angle is set to 10 °), relatively heavy particles such as pollen deposited on the floor are collected. can do. In particular, since floors such as carpets tend to soar when a person walks, setting the depression angle to 10 ° is effective for enhancing the dust collection effect.

By sliding the slide pipe 50 up and down, the air purifier unit 20 can be raised and lowered to change the height of the air purifier unit 20. For example, when grilling meat on a table or sitting on a chair and smoking cigarettes, the air purifier unit 20 is raised and the air purifier 100 is operated at a high position. The air purifier unit 20 can be brought closer to a source of smoke and odor, such as lowering 20 and operating the air cleaner 100 at a low position, so that the air cleaner can be operated efficiently.
The slide pipe 50 can be manually slid up and down and fixed at an arbitrary position by a ratchet mechanism.

FIG. 3 shows an example of the trajectory of the air purifier unit 20 when performing vertical and horizontal swings simultaneously.
As shown in FIG. 3A, the air purifier unit 20 swings left and right at 70 ° left and right, and as shown in FIG. 3B, swings up and down at an elevation angle of 60 ° and a depression angle of 10 °. Do the driving.
FIG. 3 (c) is a combination of FIG. 3 (a) and FIG. 3 (b). First, it is assumed that the air purifier unit 20 is at a position p0 in front of the left-right direction and a depression angle of 10 °. The air purifier unit 20 moves from the position p0 along the arrow to a position p1 of 70 ° to the left and an elevation angle of ¼ × (10 + 60) °. Next, the air purifier unit 20 moves from the position p1 to the position p2 of 70 ° to the right and the elevation angle 3/4 × (10 + 60) ° along the arrow. Next, the air purifier unit 20 moves from the position p2 along the arrow to the position p3 at the front in the left-right direction and at an elevation angle of 60 °. Similarly, it moves to positions p4 and p5 and returns to position p1.

In FIG. 4, the block diagram of the control circuit of the air cleaner 100 of this invention is shown.
The controller includes a blade motor control unit, a vertical swing motor control unit, a left / right swing motor control unit, a sensor control unit, and a storage unit. The sensor control unit determines the dust concentration in the air based on the signal from the sensor 80, and controls the operation of the blade motor, the vertical swing motor, and the left and right swing motor. In addition, a power supply unit for supplying DC power from the AC power source to each control unit and each motor, and a display / operation unit are connected to the controller. In the display / operation unit, buttons of the operation panel 70 are arranged.

FIG. 5 shows an example of the operation panel 70 of the air cleaner 100 of the present invention. In the illustrated example, the operation panel 70 provided on the base 60 will be described. However, the operation panel may be provided on a remote controller.
The operation panel 70 includes a power on / off button B1, an air volume adjustment button B2, an up / down swing operation button B3, a left / right swing operation button B4, a 3D swing operation button B5 that simultaneously performs up / down swing and left / right swing, A lamp that represents the operating state of each button B1 to B5 and a lamp that represents the dust concentration in the air are arranged. The dust concentration in the air is expressed in three levels, low, medium, and high, but can also be expressed in two levels, low and high.
Each time the air volume adjustment button B2 is pressed, the air volume is switched from weak to medium to strong to rhythm (weak, medium, and strong are changed randomly) to weak. Each time the vertical swing operation button B3 is pressed, the vertical swing operation is turned ON / OFF. Each time the left / right swing operation button B4 is pressed, the left / right swing angle is switched from 45 ° → 70 ° → 140 ° → OFF. Each time the 3D swing operation button B5 is pressed, manual and auto are switched. When manual is ON, the vertical swing motor and the left and right swing motors are simultaneously turned ON to start 3D swing operation and auto is ON. As will be described later with reference to FIG. 6, the dust concentration is detected before the 3D swing operation is started.

FIG. 6 is a flowchart when the 3D swing operation button B5 is pressed by the user.
Initially, it is assumed that the air purifier 100 is operated in a state where the air volume is weak without performing the swing operation.
In step S1, when the 3D swing operation button B5 is pressed to turn on the auto, in step S2, the operation of the vertical swing motor and the left and right swing motor is started, and the 3D swing operation is turned on.
In step S3, the sensor 80 detects the dust concentration in the air. The detection by the sensor 80 can be performed every predetermined time (for example, every 10 seconds) during the 3D swing operation, or can be performed every predetermined swing angle (for example, every 10 °).
In step S4, it is determined whether or not the detected dust concentration is equal to or higher than a predetermined value. The determination of the dust concentration can be made in three stages of low, medium and high, and can be made in two stages of low and high. When the determination is made in three stages, for example, if the dust concentration is medium or higher, in step S5, the operation of the vertical swing motor and the left and right swing motor is stopped at the swing angle at which the dust concentration is detected, and the 3D head Turn off the swing operation. Here, only the blade motor 32 continues to operate.
In step S6, the rotational speed of the blade motor 32 is increased, the air volume is set to be strong, and the operation is performed for a predetermined time (for example, 3 minutes). In this example, since the operation was initially performed with the air flow being weak, the air flow was switched to strong. However, when the operation was performed with the air flow being strong from the beginning, the air flow remains unchanged for a predetermined time (for example, 3 minutes) Drive.
In step S7, the dust concentration in the air is detected again by the sensor 80, and in step S8, the dust concentration is determined. Steps S7 and S8 are repeated until the dust concentration becomes less than medium (NO in step S8).
If the dust concentration becomes less than medium in step S8, the air volume is switched to a weak level in step S9, that is, the air volume is returned to the initial state.
In step S10, the operation of the up / down swing motor and the left / right swing motor is restarted, the 3D swing operation is turned ON, and the operation is terminated.
In step S1, when the 3D swing operation button B5 is pressed and the manual operation is turned on, steps S2 to S9 are not performed, and in step S10, the vertical swing motor and the left and right swing motor are started to operate. Turn on the swing operation.

If another button is pressed during the 3D swing operation with auto-ON, the operation is performed according to the pressed button. For example, when the vertical swing operation button B3 is pressed, the operation moves to the vertical swing operation, and when the left and right swing operation button B4 is pressed, the operation moves to the left and right swing operation. If the air volume is set to a rhythm that randomly changes between weak, medium, and strong, the operation is performed with the air volume at the time when the buttons B3 and B4 are pressed.
When the 3D swing operation button B5 is pressed during the 3D swing operation with auto-ON, the manual is turned ON, and the operation is performed with the air volume when the button B5 is pressed.
If the air volume adjustment button B2 is pressed during the 3D swing operation with auto ON, the manual air is turned on and the operation is performed with the selected air volume.

As described above, the sensor 80 may have a function as an odor sensor instead of a function as a dust sensor, or may have both a function as a dust sensor and a function as an odor sensor.
As described above, according to the present invention, the ON / OFF of the swing operation and the air volume are controlled according to at least one of the dust concentration detected by the dust sensor and the odor concentration detected by the odor sensor while performing the vertical swing and the horizontal swing simultaneously. Control. As a result, the air purifying function can be quickly exerted on the generation source of smoke and odor, and the operation of the air purifier can be controlled efficiently.

20 Air Purifier Unit 21a Front Cover 21b Rear Cover 22 Blade 23 Filter Set 23a Dust Collection Filter 23b Deodorizing Filter 23c Filter Cover q Inlet H Exhaust 30 Motor Case 31 Rotating Shaft 32 Blade Motor m Vertical Swing Motor 40 Support Part 41 Rotating shaft 50 Slide pipe 51 Strut 60 Base 70 Display / operation panel 80 Sensor 100 Air purifier

Claims (4)

An air purifier unit having blades, wherein an air inlet q is formed on the front surface and an air outlet h is formed on the side surface ;
A blade motor for rotating the blade;
A vertical swing motor for swinging the air purifier unit up and down;
A left and right swing motor for swinging the air purifier unit left and right;
Having at least one of a function as a dust sensor and a function as an odor sensor, and a sensor provided in the air cleaner unit;
A method for controlling the operation of an air cleaner having
When 3D swing operation in which both the vertical swing motor and the left and right swing motor are operated simultaneously is selected by the user,
Start the operation of the vertical swing motor and the horizontal swing motor,
The sensor detects at least one of dust concentration and odor concentration in the air,
When at least one of the detected dust concentration and odor concentration is equal to or greater than a predetermined value, the operation of the vertical swing motor and the left and right swing motor is stopped at the swing angle at which at least one of the dust concentration and odor concentration is detected. And
Again, the sensor detects at least one of dust concentration and odor concentration in the air,
When at least one of the dust concentration and the odor concentration is less than a predetermined value, the operation of the vertical swing motor and the left and right swing motor is resumed.
A method characterized by that. When at least one of the detected dust concentration and odor concentration is a predetermined value or more, the rotational speed of the blade motor is increased.
The method of claim 1.   The air cleaner which performs the method of Claim 1 or 2. A slide pipe for raising and lowering the air purifier unit;
The air cleaner according to claim 3.

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