JP6295430B2 - Air cleaner - Google Patents

Description

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

  Conventionally, as this type of air purifier, a human detection sensor has been provided on the front of the main body, and when the number of human detections is large by this human detection sensor, the air flow capacity is increased to increase its air purification capability. It has been. (For example, see Patent Document 1)

JP-A-1-163546

  The problem with the conventional example is that dust accumulation on the floor increases when there are no people in the room.

  In other words, when there is no person in the room, the human detection sensor detects it and stops the blower, and after that, it floats in the indoor space due to airflow from human activities and airflow from the air purifier operation. The dust particles that have fallen gradually sink and settle due to the disappearance of the airflow, and accumulate on the floor as dust.

  Therefore, an object of the present invention is to reduce dust accumulation on the floor surface.

In order to achieve this object, the present invention provides a main body case having a blower outlet at the upper part and a suction port at the lower part, an air purifier provided in the main body case, a blower, an opening area of the blower outlet, and The blower outlet adjusting means for adjusting the air direction, and the control unit connected to the blower and the blower outlet adjusting means. The control unit is in the normal mode and the cleaning mode, and the blower and the blower outlet adjusting means. When the cleaning mode is set, the opening area of the outlet is made smaller than when the normal mode is set, and the outlet direction is directed toward the center of the outlet, and the outlet adjusting means is A blow-out louver whose front side in the main body case opens in an elevation angle direction, and plate-shaped 2 provided on both left and right ends of the main body case of the blow-out louver. First left and right wind direction plates, and two second left and right wind direction plates having a plate shape provided inward of the two first left and right wind direction plates. And the two second left and right wind direction plates are plate-shaped extending in the downward direction and the blowing direction from the lower surface of the blowing louver, and between the downstream end portions in the blowing direction of the two first left and right wind direction plates. The distance is shorter than the distance between the upstream end portions in the blowing direction of the two first left and right wind direction plates, and the distance between the downstream end portions in the blowing direction of the two second left and right wind direction plates is The distance between the upstream end portions in the air blowing direction of the two second left and right wind direction plates is shorter, thereby achieving the intended purpose.

As described above, the present invention includes a main body case having an air outlet at the upper portion and a suction port at the lower portion, an air purifier provided in the main body case, a blower, and a blower that adjusts the opening area and the air direction of the air outlet. An outlet adjustment means, and a control unit connected to the blower and the blower adjustment means, and the control unit controls the blower and the blower adjustment means in a normal mode and a cleaning mode, respectively. When the cleaning mode is set, the opening area of the air outlet is made smaller than when the normal mode is set, the air outlet direction is directed toward the center of the air outlet, and the air outlet adjusting means is connected to the body case. A blowing louver whose front side opens in the elevation direction, and two first left and right wind direction plates having a plate shape provided on both left and right ends of the body case of the blowing louver Two second left and right wind direction plates having a plate shape provided inward of the two first left and right wind direction plates, and the two first left and right wind direction plates and the two second left and right direction plates. The wind direction plate has a plate shape extending downward from the lower surface of the blowing louver and in the blowing direction, and the distance between the downstream ends in the blowing direction of the two first left and right wind direction plates is the two first Shorter than the distance between the upstream end portions in the blowing direction of the left and right wind direction plates, the distance between the downstream end portions in the blowing direction of the two second left and right wind direction plates is the two second left and right wind directions. it since Due to the fact that the said shorter than the distance between the upstream end in the blowing direction of the plate, it is possible to reduce the dust deposited on the floor.

  That is, when setting the cleaning mode, the opening area of the air outlet is reduced, and since the blowing direction is directed toward the center of the air outlet, the air blown out from the air outlet at the top of the main body case is blown farther. As a result, the rising of dust existing in the lower part of the room can be suppressed.

  And in this state, the dust which exists in the lower part of a room | chamber interior will be suck | inhaled effectively from the suction inlet of a main body case lower part, As a result, the accumulation of dust on a floor surface can be reduced.

1 is an external perspective view of the air cleaner according to Embodiment 1 of the present invention. Cross-sectional configuration diagram of the same air purifier Cross-sectional configuration diagram when sliding front decorative plate of the same air purifier Top view of the air outlet adjustment means of the air cleaner Block diagram of the air purifier Flow chart showing control operation of the air cleaner Conceptual diagram of floating dust distribution in indoor air

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

(Embodiment 1)
As shown in FIGS. 1 and 2, the main body case 1 of the air cleaner is formed in a substantially box shape.

  The lower part of the front surface of the main body case 1 is provided with a suction port 3 for sucking indoor air, and a front decorative plate 2 is provided so as to cover the suction port 3.

  The air sucked into the main body case 1 passes through the periphery of the front decorative plate 2, that is, between the main body case 1 and the front decorative plate 2 and is sucked into the suction port 3.

  Moreover, as shown in FIG. 3, the front decorative board 2 is provided with a mechanism that slides forward and obliquely upward. In other words, the opening area of the suction port 3 can be changed by sliding the front decorative plate 2 forward and obliquely upward by a motor (not shown as an example of the suction port adjusting means).

  Moreover, the upper surface (upper part) of the main body case 1 is provided with an air outlet 5 that blows out purified air into the room. The air outlet 5 has two air outlet adjusting means in the front-rear direction of the main body case 1. Provided.

  Moreover, FIG. 4 is the figure which looked at the blower outlet adjustment means from the downward direction. As shown in FIG. 4, the air outlet adjusting means includes a blowout louver 4, two first left and right wind direction plates 10, two second left and right wind direction plates 11, and a motor (not shown). Yes.

  The blowout louver 4 is a horizontally long rectangular flat plate, and the front side of the main body case 1 is opened in the elevation angle direction by a motor. That is, the blowing louver 4 is rotated in the vertical direction on the front side of the main body case 1 by the motor.

  The two first left and right wind direction plates 10 have plate shapes extending downward from the lower surface of the blowing louver 4 and in the blowing direction, and are provided on both left and right ends of the body case 1 of the blowing louver 4. That is, the two first left and right wind direction plates 10 include a vertical surface extending in the front-rear direction of the main body case 1. However, the distance (L1) between the ends on the downstream side (front side in the main body case) of the two first left and right wind direction plates 10 in the blowing direction is the upstream side in the blowing direction of the two first left and right wind direction plates 10. It is shorter than the distance (L2) between the end portions (on the back side of the main body case). Thereby, when it hits the inner surface of the two first left and right wind direction plates 10, the blowing direction can be directed to the central direction at the outlet 5.

  The two second left and right wind direction plates 11 have a plate shape extending downward from the lower surface of the blowing louver 4 and in the blowing direction, and are provided inside the two first left and right wind direction plates 10. That is, the two second left and right wind direction plates 11 include a vertical surface extending in the front-rear direction of the main body case. However, the distance (L3) between the end portions on the downstream side (front side in the main body case) in the blowing direction of the two second left and right wind direction plates 11 is the upstream side in the blowing direction of the two second left and right wind direction plates ( It is shorter than the distance between the end portions (L4) on the back side of the main body case. Thereby, when it hits the inner surface of the two second left and right wind direction plates 11, the blowing direction can be directed to the central direction at the outlet 5.

  When the blowout louver 4 is rotated in the elevation direction, that is, upward, by a motor (not shown as an example of the blowout adjustment means), the opening area of the blowout 5 is increased.

  Conversely, when the blowout louver 4 is rotated downward by a motor (not shown as an example of the blowout adjustment means), the opening area of the blowout 5 is reduced and the wind speed is increased. Further, the amount of air hitting the inner surfaces of the two first left and right wind direction plates 10 and the two second left and right wind direction plates 11 is increased, and the blowing direction can be directed to the center direction at the outlet 5 and can be blown farther. it can. Thereby, dust accumulation on the floor surface can be reduced.

  Furthermore, the distance (L1) between the ends on the downstream side (front side in the main body case) of the two first left and right wind direction plates 10 in the blowing direction is the upstream side in the blowing direction of the two second left and right wind direction plates 11. It is shorter than the distance (L4) between the end portions (on the back side of the main body case). Accordingly, the air passing between the first left and right wind direction plates 10 and the second left and right wind direction plates 11, specifically, the first right and left wind direction plates 10 and the second right and left wind directions on the right side of the main body case. The air passing between the plates 11 and the air passing between the first left and right wind direction plates 10 on the left side of the main body case and the second left and right wind direction plates 11 more direct the blowing direction toward the center of the air outlet 5. Can be blown out further. Thereby, dust accumulation on the floor surface can be reduced.

  Further, in the main body case 1, a filter 6 as an air purifier for purifying the air sucked from the suction port 3, and a fan motor 7 that ventilates the air sucked from the suction port 3 through the filter 6 and sends it out from the blowout port 5. (An example of a blower) and a control unit 9 that controls the operation of the fan motor 7 are provided.

  In addition, a human detection sensor 8 as an occupancy determination means is provided on the front surface of the main body case 1 so that the presence or absence of a person in the room can be determined. The human detection sensor 8 includes, for example, a Fresnel lens that collects infrared rays, a pyroelectric element such as a high dielectric ceramic, and an operation speed at which a person operates, for example, a filter having a gain in a frequency band of 1 to 10 Hz. A device that outputs a human action as a voltage signal using a pyroelectric effect in which the surface temperature of the pyroelectric element changes due to infrared energy emitted from the surface and charges are generated on the surface is used.

  FIG. 5 is a block diagram of the air cleaner.

  As shown in FIG. 5, the control unit 9 controls the driving of the fan motor 7, the driving of the front decorative plate 2, and the driving of the blowing louver 4 based on the detection signal of the human detection sensor 8.

  That is, a fan motor 7 (an example of a blower), a motor for driving a blowout louver 4 (an example of an outlet adjustment unit), and a motor for driving a front decorative plate 2 (an example of a suction port adjustment unit) are connected to the control unit 9. -ing

  In the above configuration, the control unit 9 controls the drive of the fan motor 7, the front decorative plate 2, and the blowout louver 4 based on the detection signal of the human detection sensor 8, using the flowchart shown in FIG. 6. explain.

  When the operation switch (not shown in the example of the operation unit) of the main body case 1 is turned ON, the air purifier operation (S1) is started, and the control unit 9 drives the fan motor 7 at the rotational speed at which the wind speed A is achieved. (S2).

  This state is a normal mode.

  The human detection sensor 8 senses the presence of a person in the room and determines the absence of the person in the room (S3).

  While the human detection sensor 8 determines that the user is in the room, the controller 9 continues to drive the fan motor 7 at the rotational speed at which the wind speed A is achieved.

  If it is determined that the human detection sensor 8 is absent, the cleaning mode is turned on (S4).

  When the cleaning mode is started, the controller 9 drives the fan motor 7 at the rotational speed at which the wind speed B is achieved (S5).

  The wind speed B is a wind speed that satisfies the relationship of wind speed B> wind speed A.

  That is, in the cleaning mode, the rotational speed of the fan motor 7 is made equal to or higher than that in the normal mode.

  Next, the front decorative board 2 is moved upward (S6), and then, as the cleaning mode A, the blowing louver 4 is in a state where the elevation direction is large (directly upward) and in which the elevation direction is small (forward obliquely upward direction) Are periodically reciprocated (S7).

  In this way, the operation in the cleaning mode is started in the absence, and in the cleaning mode A, the fan motor 7 is driven at a wind speed B higher than the wind speed A at the time of occupancy determination, and the suction port 3 at the lower front of the main body case 1 is opened. The area is increased and the blowout louver 4 is swung so that the air blown out from the blowout port 5 circulates in the indoor high-frequency space.

  Here, as shown in FIG. 7, in the indoor space, ticks and death of large mite particles, pollen, dust, etc. are easily settled and distributed in the indoor low-frequency space. It is known that smoke, soot, viruses, and the like are distributed in a large amount of indoor high frequency space.

  Therefore, at the start of the cleaning mode operation, the sedimentation of dust particles floating by blowing air to the high frequency space is promoted.

  Then, the elapse of the predetermined time S after the operation in the cleaning mode A is started is determined (S8).

  If the predetermined time S (30 minutes in this embodiment) has not elapsed, the control unit 9 maintains the operation state up to step S7.

  When 30 minutes have passed, the controller 9 drives the blowing louver 4 in the cleaning mode B so as to hold the blowing louver 4 diagonally upward and forward (small elevation) (S9).

  Then, the passage of the predetermined time T is determined after the blowing louver 4 is held with the elevation direction obliquely upward and forward (S10).

  If the predetermined time T (30 minutes in the present embodiment) has not elapsed, the control unit 9 maintains the operation state of step S9.

  When 30 minutes have elapsed, the controller 9 turns off the cleaning mode (S11) and returns to the normal air cleaner operation (S1).

  In this way, in the indoor low-frequency space, there are dust particles settled by the operation in the cleaning mode A and dust particles having a large particle diameter distributed from the original.

  In the cleaning mode B, the blowing louver 4 is held forward and obliquely upward (the elevation is small) so that the air blown out from the blowout port 5 circulates in the indoor low-frequency space, and a large air volume (the fan motor 7 rotates at high speed). Thus, the opening area of the suction port 3 is increased, and dust particles existing in the low-frequency space are efficiently collected.

  In the cleaning mode A, the reciprocating motion of the blowing louver 4 is preferably performed continuously for about 20 to 40 minutes. Preferably, it may be performed continuously for about 30 minutes. When the room is unattended, it takes 30 to 40 minutes for the dust particles floating in the high frequency space to settle, so the length of time of the cleaning mode A that is blown from the air cleaner to the high frequency space is preferably about 30 minutes. .

  In addition, it takes about 20 to 40 minutes to collect dust or the like that has settled near the floor surface in a space of about 10 to 15 tatami mats. Since the cleaning mode in which the air cleaner is operated unattended is preferably a short time, the cleaning mode B is preferably completed in about 30 minutes.

  In the cleaning mode B, the front decorative plate 2 may be slid to increase the opening area of the lower suction port 3. That is, in the cleaning mode B, the dust particles in the low-pass space are sucked in, so that the dust particles can be sucked in efficiently by increasing the amount of air sucked from below.

  In addition, the elevation angle of the blowing louver 4 in the cleaning mode B is preferably in the range of 20 to 45 °, more preferably about 30 °. By blowing out at this angle, if the area is about 10-15 tatami mats, the air flow spreads to the vicinity of the opposing inner walls, and dust particles floating in the low-frequency space can be efficiently collected.

  As described above, in the present embodiment, when the cleaning mode is set, the rotation speed of the fan motor 7 (an example of a blower) is high, and the elevation angle of the blowout louver 4 is reduced to reduce the opening area of the blowout port 5. Because the wind speed increases. Further, the amount of air hitting the two first left and right wind direction plates 10 and the two second left and right wind direction plates 11 can be increased, and the blowing direction can be directed toward the center of the blower outlet 5. The air blown out from the air is blown farther, and as a result, the rising of dust existing in the lower part of the room can be suppressed.

  And in this state, the dust which exists in the lower part of a room | chamber interior will be suck | inhaled effectively from the suction inlet 3 of a main body case lower part, As a result, the dust accumulation on a floor surface can be reduced.

  And in this state, since it operates by increasing the opening area of the suction port 3, the dust existing in the lower part of the room is effectively sucked from the suction port 3, and as a result, to the floor surface. It is possible to reduce dust accumulation.

  When the rotation speed of the fan motor 7 (an example of a blower) in the normal mode is compared with that in the cleaning mode B, the rotation speed of the fan motor 7 (an example of a blower) is set to 320 R · P · In the state that can be set at M, 650 R · P · M during medium operation, and 1430 R · P · M during large airflow operation, 1430 R · P · M is set in the cleaning mode B.

  That is, in the cleaning mode B, the fan motor 7 (an example of a blower) is rotated at the maximum speed in the normal mode or at a speed in the vicinity thereof to obtain a large air volume.

  Further, when comparing the opening area of the air outlet 5 in the normal mode with that in the cleaning mode B, it is 17 in the cleaning mode B with respect to the plan view 26 in the normal mode.

  That is, in the cleaning mode B, it is set to be smaller than the opening area of the outlet 5 in the normal mode, and the air is sent far away with a large air volume.

  Further, when comparing the opening area of the suction port 3 in the normal mode with that in the cleaning mode B, the opening area of the suction port 3 in the normal mode is set to 100 in the cleaning mode B with respect to 77-100.

  That is, in the cleaning mode B, the intake area is set to be larger than the opening area of the suction port 3 in the normal mode, and a large amount of air is sucked in.

In the above embodiment, the cleaning mode A (reciprocating the blowout louver 4) is provided. However, the cleaning mode B may be set without providing the cleaning mode A.
That is, the fan motor 7 (an example of a blower) is rotated at a maximum speed in the normal mode or at a speed near the fan motor 7 to increase the air volume, and the elevation angle of the blowout louver 4 is reduced to reduce the opening area of the outlet 5 in the normal mode. Dust accumulation on the floor surface by reducing the air flow to a greater distance with a large air flow and a larger air flow than the opening area of the suction port 3 in the normal mode. May be reduced.

  In the above embodiment, the normal mode and the cleaning mode are switched by the human detection sensor 8, but the normal mode and the cleaning mode may be switched by a manual operation.

  That is, the cleaning mode may be set from the operation unit.

  The air cleaner according to the present invention can reduce the accumulation of dust on the floor surface, and can also be applied to an air cleaner with a humidifying function and an air conditioner for home use and office use.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Front decorative board 3 Suction port 4 Outlet louver 5 Outlet 6 Filter (air purifying part)
7 Fan motor (blower)
8 person detection sensor (in-room determination means)
9 Control part 10 1st left-right wind direction board 11 2nd left-right wind direction board

Claims (3)

A main body case having an air outlet at the upper part and an air inlet at the lower part, an air purifier provided in the main body case, a blower, an air outlet adjusting means for adjusting an opening area and an air direction of the air outlet, and the aforementioned A control unit connected to the blower and the air outlet adjustment means, and the control unit is configured to control the blower and the air outlet adjustment means in the normal mode and the cleaning mode, respectively, and when the cleaning mode is set, Compared with the normal mode setting, the opening area of the air outlet is reduced, the air blowing direction is directed toward the center of the air outlet, and the air outlet adjusting means is an air outlet in which the front side of the main body case opens in the elevation angle direction. A louver, two plate-shaped first left and right wind direction plates provided on the left and right ends of the main body case of the blowing louver, and two first left Two second left and right wind direction plates having a plate shape provided inward of the wind direction plate, the two first left and right wind direction plates and the two second left and right wind direction plates of the blowout louver. The distance between the downstream ends in the blowing direction of the two first left and right wind direction plates in the blowing direction of the two first left and right wind direction plates is a plate shape extending in the downward direction and the blowing direction from the lower surface. The distance between the downstream ends in the blowing direction of the two second left and right wind direction plates is shorter than the distance between the upstream end portions, and the upstream distance in the blowing direction of the two second left and right wind direction plates is air purifier you and being shorter than the distance between the ends. The distance between the downstream end portions in the blowing direction of the two first left and right wind direction plates is shorter than the distance between the upstream end portions in the blowing direction of the two second left and right wind direction plates. The air cleaner according to claim 1. The air cleaner according to claim 1 or 2, wherein the blowout port is provided with two blowout louvers in the front-rear direction of the main body case.

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