JPH11151414A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to operate on an adequate operational condition in accordance with respective installation states. SOLUTION: This air cleaner is provided with a limit switch 22 for detecting whether the installation state on the position in accordance with a rear 2c of a main body casing 2 is a mounting surface installation or a wall hanging installation. One portion of an operational member 29 of the limit switch 22 is arranged to enter into a box like article 21. A wind direction louver is controlled to an adequately restrained position in accordance with the installation state detected with the limit switch 22. Also a contamination level in indoor air be accurately displayed in spite of the installation state. Besides, the device automatically be operated under an adequate operational condition based on a level of the contamination at an automatic operation time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an air purifier for purifying air.

[0002]

2. Description of the Related Art Normally, in an air purifier, room air sucked from a suction grill is purified through a pre-filter, an ionization section and a dust collection section and then blown out from an air outlet. As an installation mode of this air purifier, there are a type installed on a tabletop or a floor surface (hereinafter referred to as a mounting surface installation) and a type mounted on a wall (hereinafter referred to as a wall-mounted installation). . In recent years, in addition to these types, air purifiers that can be installed on both a mounting surface and a wall are widely used.

[0003]

By the way, in general, in a conventional system which can be installed in both of the above-described installation modes,
When the mounting surface is installed, it is installed below the room, and when installed on a wall, it is installed above the indoor wall. However, the driving operation is controlled by the same control contents (for example, the wind direction during the operation) when the mounting surface is installed and when the device is installed on the wall, so that there are the following disadvantages.

[0004] For example, when the air is blown upward from the air outlet at the time of installation on a wall, the ceiling becomes dirty. In addition, if an air purifier equipped with a function to detect air dirt using a dirt sensor such as a dust detection sensor is installed on the mounting surface, the dirt sensor will not detect tobacco smoke that tends to rise. Therefore, there is a possibility that the user cannot be shown the correct degree of contamination in the room.

On the other hand, conventionally, by operating / stopping the blower fan and switching the air volume tap of the blower fan according to the degree of dirtiness of the air detected by the dirt sensor,
2. Description of the Related Art There has been provided an air purifier that enables automatic operation for adjusting dust collection capacity. However, when the installation mode is selected as described above, it is difficult to perform an appropriate operation according to each installation mode because the detection sensitivity of the dirt sensor is different between the two installation modes. Becomes

The present invention has been made in view of the above background, and has as its object to provide an air purifier that can be operated in an appropriate operating condition according to each installation mode.

[0007]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, an air flow generated by a blower fan driven by a motor is blown from a suction port to a discharge port via a purifying means. In the air purifier that flows through the ventilation path leading to
A first installation mode installed on a mounting surface formed of a floor surface or a tabletop, and a second installation mode installed on a wall surface are selectable, and a casing in which the air passage is partitioned, An installation mode detecting means for detecting which of the second installation modes is installed, and at least one of control contents related to the operation of the air purifier according to the installation mode detected by the installation mode detecting means. And a control means for changing a section.

According to this configuration, the vehicle can be driven by a driving operation according to the detected installation mode. Here, the driving operation includes driving, stopping, air volume during operation, and wind direction during operation. Further, changing the control content related to the driving operation refers to changing the control content itself for controlling the air volume, the wind direction, and the like, and comparing the output of the sensor that affects the determination of the control content with the output of this sensor. This is intended to include a case where one of the reference values is changed.

According to a second aspect of the present invention, in the air purifier of the first aspect, the casing has a first portion facing the mounting surface in the first installation mode and a second installation mode. And a second portion facing the wall surface, and the installation mode detecting means includes a limit switch provided on at least one of the first and second portions.

[0010] According to this configuration, since the limit switch can directly and mechanically detect the installation mode, it is possible to reliably detect whether it is installed on the mounting surface or on the wall surface. can do. According to a third aspect of the present invention, in the air cleaner according to the second aspect, the second portion has an attached portion attached to an attaching portion on a wall surface, and the attaching mode detecting means is provided on the attached portion. It is characterized by being provided.

According to this configuration, since the installation mode detecting means is provided on the mounting portion for hanging on the wall, it is possible to more reliably detect which installation mode is installed. According to a fourth aspect of the present invention, in the air purifier according to any one of the first to third aspects, the direction of the air blown from the air outlet is regulated at a predetermined regulating position. And a driving member for displacing the wind direction restricting member, wherein the control content related to the driving operation includes setting of a restriction position of the wind direction restricting member by the driving member. It is.

According to this configuration, since the regulation position of the wind direction regulating member is set by the driving member in accordance with the installation mode, in any of the installation modes, air is blown in the wind direction that matches the installation position during operation, and It is possible to make the flow evenly distributed in the area. The wind direction regulating member has a case where the position is fixed and a case where the wind direction regulating member is reciprocated within a predetermined fluctuation range.Therefore, the above-mentioned predetermined regulating position is only a position where the wind direction regulating member is fixed. Without
This is intended to include both a position having a certain range in which it is reciprocally displaced. In addition, ceiling dirt can be prevented.

[0013] The invention according to claim 5 is the invention according to claims 1 to 4.
The air purifier according to any one of the above, further comprising a dirt detection sensor disposed in the casing and detects dirt of indoor air and outputs the dirt to the control means, the control means,
At least a part of the control content is changed in accordance with the installation mode detected by the installation mode detection means and the output from the dirt detection sensor.

According to this configuration, since the contents of the control are changed in consideration of the installation mode and the dirt condition, the control is changed in comparison with the conventional configuration which is controlled only in accordance with the dirt condition. Thus, the vehicle can be operated in an appropriate operation state. Here, the dirt sensor includes at least one of a dust detection sensor, an odor sensor, a gas sensor, and a smoke sensor.

[0015]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of an air purifier according to one embodiment of the present invention. Referring to FIG. 1, an air purifier 1 is provided with a main body casing 2, and a front surface 2a is formed with a concave portion 2b. A pre-filter 3 for removing relatively large dirt and dust, an ionizing section 4 for discharging to charge dirt particles, and a roll filter as a dust collecting section are arranged in the concave portion 2b in this order from the near side. 5, and a honeycomb-shaped photocatalyst unit 6 carrying a photocatalyst for purifying pollutants such as odor components in the ventilation flow. Further, a lamp 7 for activating the photocatalyst unit 6 is disposed in the main body casing 2.

An opening 8 is formed substantially at the center of the concave portion 2b of the main body casing 2, and a blower fan motor 9 and a blower fan (not shown) rotated by the blower fan motor 9 in the opening 8. Is attached. The air purifier 1 has a configuration in which the above-described members are arranged in a main body casing 2 and a front panel 11 is fitted to a front surface 2a thereof.

The front surface 2a of the main casing 2 is constituted by a front panel 11, on which a suction grille 12 as a suction port is formed.
After the room air sucked from the suction grill 12 is purified through the ionization unit 4, the roll filter 5, and the photocatalyst unit 6, the blowing grill 13 as an air outlet provided at the upper part of the main body casing 2 by the blowing fan is provided.
Blown out from.

At the lower end of the front panel 11, a display / operation unit 14 is arranged. An air supply port 15 is opened at one end of the operation / display section 14.
The indoor air is supplied to a dust detection sensor (not shown) as a dirt detection sensor through the sensor. The display / operation unit 14 includes an operation change / stop switch 16 and a receiving unit 17 for receiving a signal from a remote controller (not shown).
And various indicator lights 18.

The operation switch / stop switch 16 is sequentially switched to automatic operation, "strong", "medium", "weak", "weak", and operation stop every time the switch is pressed. Blowoff grill 1
Reference numeral 3 denotes a wind direction louver 19 as a wind direction restricting member, and the wind direction louver 19 is driven by a wind direction louver driving motor 20 arranged in the main body casing 2.

Above the back surface 2c of the main body casing 2, a pair of left and right hook portions 21 (not shown in FIG. 1; see FIG. 2; only one is shown in FIG. 2) as a portion to be attached are provided. Is provided. When the air purifier 1 is installed on the wall Q, the hook 21 is used as a pair of left and right mounting plates 25 (FIG. 1) as attachments fixed to the wall Q.
Does not appear in See FIG. In FIG. 2, only one is shown. ) Are respectively hooked and engaged, and the air purifier 1
Is fixed to the wall Q.

On the bottom surface 2d of the main body casing 2,
An installation rib 51 for installing the air purifier 1 on a mounting surface P such as a desk top (not shown in FIG. 1; see FIG. 2)
Is provided. Therefore, the air purifier 1 is mounted on the wall Q
It is also possible to install the device on a mounting surface P such as a tabletop surface or a floor surface. FIG.
FIG. 2 is a schematic cross-sectional view of the upper part of the air purifier. Referring to FIG. 2, wind direction louver 19 is attached to blowout grill 13, and has a pair of rotation shafts 52 extending linearly in a horizontal direction.
It has. The rotation shaft 52 is rotatably supported about a rotation axis K, and is directly connected to the output shaft of the motor 20 for driving. The wind direction louver 19 driven by the motor 20 rotates from a position indicated by a solid line in FIG. 2 to a position indicated by a two-dot chain line. The motor 20 is formed of a stepping motor capable of displacing an output shaft to an angular position corresponding to a predetermined drive signal when the signal is input.

When the power is turned off, the wind direction louver 19 is in a state of covering the blowout grill 13, and the wind direction angle (θ) is 0 ° with reference to the horizontal upper surface 2e of the main body casing 2. Thereafter, the value of θ changes stepwise in the range of 0 ° to 70 ° according to the control by the control board 28 described later. However, even when the upper surface 2e is not horizontal, the wind direction angle (θ) changes stepwise within a range of 0 ° to 70 ° based on the upper surface 2e.

As an example of the stepwise change of the wind direction louver 19, a first position (P1) (θ = 20 °) from a position (θ = 0 °) indicated by a solid line in FIG. , The second position (P2) (θ = 30 °), the third position (P3) (θ =
40 °), the fourth position (P4) (θ = 70 °), and the regulation position is changed to four levels. Thus, the wind direction louver 19
, A plurality of restriction positions are set in advance according to the installation mode and the air volume. The wind direction louver 19 is stopped at each restriction position, and the direction of the blown wind is determined accordingly. Further, the wind direction louver 19 is fluctuated and displaced between positions within a certain range including the regulation position, and the direction of the blown wind may be continuously changed accordingly.

FIGS. 3 and 4 are schematic cross-sectional views respectively showing a state immediately before the back surface of the main body casing of the air purifier is attached to the wall surface and a state after the attachment. As described above, the hook portions 21 are hooked and engaged with the installation plates 25, respectively, and the air cleaner 1 is fixed to the wall surface Q. Referring to FIG. 3, hook portion 21 as an attached portion has a box shape that opens downward, and is formed integrally with main body casing 2. The mounting plate 25 as a mounting portion is a thin plate having a key-shaped cross section, and is fixed to the wall surface Q by a plurality of screws (not shown).

At a position corresponding to the hook portion 21 inside the back surface 2c, a limit switch 22 is provided as an installation state detecting means. The limit switch 22 includes a control switch 2 that is movable in the front-rear direction with the limit switch main body 41.
4 and an operation member 29. The operation member 29 is an elastic member whose one end is rotatably supported by the limit switch main body 41 and whose other end is a free end. As the operation member 29, for example, a leaf spring can be considered.

The other end of the operating member 29 enters the inside of the box-shaped hook portion 21 through the opening 23 provided on the back surface 2c of the main casing 2. The operating member 29 has a straight portion 29a as a main portion extending from the one end, and a curved portion 29b as a deformation permitting portion extending from the other end and continuing to the straight portion 29a. The opening 23 is an operation member 29
Are inserted into the box-shaped hook portion 21.
Since the hook portion 21 extends below the opening 23, it is possible to prevent water from entering the main casing 2 even if water is applied.

The operation element 24 includes a limit switch main body 41.
And protrudes rearward (toward the operation member 29) from the rear surface, and is urged by an elastic body incorporated in the limit switch main body 41 in a direction in which the amount of rearward projection increases. Further, the limit switch 22 corresponds to a state in which the circuit built in the limit switch main body 41 is closed, corresponding to a state in which the amount of protrusion of the operation element 24 is small, and a state in which the amount of protrusion of the operation element 24 is large. To open the circuit.

Next, the manner in which the air cleaner 1 is mounted on the wall Q will be described in detail with reference to FIGS. Referring to FIG. 3, hook member 21 as a mounted portion is hooked on a mounting plate 25 as a mounting portion, and when air cleaner 1 is moved downward, operating member 29 pushed up by mounting plate 25 is shown in FIG. At 3, it is turned counterclockwise. By this rotation, the distal end 29c of the operation member 29 comes into contact with the back surface 2c of the main casing 2, and then comes into contact with the linear portion 29a of the operation member 29 and the upper edge 23a of the opening 23 (see FIG. 4).

After the distal end 29c of the operating member 29 comes into contact with the back surface 2c, the linear portion 29a rotates and the curved portion 29b is deformed by receiving a reaction force from the back surface 2c. Further, as shown in FIG. 4, when the straight portion 29a abuts on the upper edge 23a of the opening 23, the rotation angle of the operation member 29 is regulated by the upper edge 23a. Is deformed. In this case, the upper edge 23a of the opening 23
Functions as a rotation angle regulating member that regulates the rotation angle of the operation member 29.

The lower end 21a of the hook 21 is
And the mounting of the air purifier 1 is completed. When the hook 21 is hooked on the mounting plate 25, the mounting plate 25 is sandwiched between the inner surface 21 b of the hook 21 and the operation member 29. Therefore, the positioning of the air purifier 1 can be performed reliably. That is, the air purifier 1 attached to the wall surface Q does not shake.

When the hook 21 is hooked on the mounting plate 25, the limit switch 22 is closed, and when the hook 21 is removed from the mounting plate 25, the limit switch 22 is open. When the limit switch 22 is in the open state, it is stored as “desktop”, and when the limit switch is in the closed state, it is stored as “wall hanging” in the RAM 31 described later.

As described above, a part of the operation member 29 of the limit switch 22 is replaced with the box-shaped hook portion 2 as an attached portion.
1, it can be directly mechanically detected, and the installation of the air cleaner 1 on the wall can be reliably detected. Further, since the operating member 29 is an elastic member, even if there is a slight mounting error when the air cleaner 1 is mounted on the wall surface Q, the error is absorbed by the operating member 29 and the limit switch 22 is operated accurately. be able to. Since the operation member 29 itself is made of an elastic member, the structure can be simplified as compared with the case where these are separately configured. When a leaf spring is used as the operating member 29, the leaf spring is small in thickness and does not take up extra space, so that the operating member is particularly provided in the box-shaped hook portion 21 as in the present embodiment. This is suitable for the case where a part of the 29 is intruded and arranged. Further, even if there is a slight mounting error, the rotation angle of the linear portion 29a as the main portion of the operation member 29 is regulated by the contact with the upper edge portion 23a of the opening 23, while the linear portion 29a as the deformation allowance portion. The bending portion 29b is deformed to absorb the mounting error. In this case, since the rotation angle of the operation member 29 is regulated by the upper edge portion 23a as described above, the installation mode can be accurately detected even if there is some installation error.

FIG. 5 is a block diagram showing the electrical configuration of the air purifier. With reference to FIG. 5, the air purifier 1
A control circuit 34 is provided as a control means, and the control circuit 34 is configured by a microcomputer including a CPU 30, a RAM 31, a ROM 32, and the like. The dust detection sensor 22 and the limit switch 27 are connected to the control circuit 34, and signals from these are input. The motor 20 and the blower fan motor 9 are connected to the control circuit 34 via drive circuits 35 and 36, respectively, and signals are output to these.

The drive circuit 36 for driving the blower fan motor 9 includes an air volume tap switching circuit 37 for changing the air volume in four stages of "strong", "medium", "weak", and "slightly". ing. The air volume tap switching circuit 37 is for switching the air volume level of the air volume sent by the air blowing fan 10, and the rotation speed of the air blowing fan motor 9 is changed in four stages by switching the air volume tap.

Signals can be exchanged between the control circuit 34 and the display circuit 38. The display circuit 38 is connected to the various indicator lights 18 and outputs a signal for display to the various indicator lights 18. FIG.
5 is a flowchart showing a flow of control of the air purifier according to one embodiment of the present invention. Referring to FIG. 6, when the operation of air cleaner 1 is started, the detection input of limit switch 22 is checked (step S1). Next, if the limit switch 22 indicates "desktop" (YES in step S2), the position of the wind direction louver 19 is controlled by the drive of the motor 20 at the regulation position in the first mode (step S3). On the other hand, if the limit switch 22 indicates "wall hanging" (N in step S2)
O), the position of the wind direction louver 19 is controlled at the restricted position in the second mode (step S4).

In the first mode and the second mode, the regulating position of the wind direction louver 19 is controlled according to the amount of the blown wind. Hereinafter, the regulation positions for the respective blowoff air volumes in the first mode will be described. In the first mode, the user performs a swing operation (wind direction louver 19).
When the reciprocating displacement is set in advance, the operation is as follows.

When the air volume is "strong", the wind direction louver 19
The motor 20 is driven such that the motor continuously reciprocates between the fourth position (P4) and the third position (P3) (see FIG. 7A). When the air volume is “medium”, the wind direction louver 19 is moved to the fourth position (P4) and the second position (P2).
The motor 20 is driven so as to continuously reciprocate between (see FIG. 7B).

When the air volume is "weak", the motor 20 is driven such that the wind direction louver 19 continuously reciprocates between the fourth position (P4) and the first position (P1). (See FIG. 7 (c)). When the air volume is "weak", the wind direction louver 19 is stopped at the third position (P3) (see FIG. 7D).

In the first mode, when the user does not set the swing operation, the control content of the regulation position of the wind direction louver 19 is different from the above case. When the air volume is "medium" or "strong", the wind direction louver 19 is not controlled. 19 is fixed to the fourth position (P4) (see FIGS. 7 (e) and 7 (f)), and when the air volume is "weak" or "weak", the wind direction louver 19 is in the third position (P4). (See FIGS. 7 (g) and 7 (h)).

Next, a description will be given of the regulation position for the amount of each blown air in the second mode. When the air volume is “strong”, the wind direction louver 19 is moved to the third position (P
3) (see FIG. 7 (i)).
When the air volume is “medium”, the wind direction louver 19 is in the third position.
The motor 20 is driven so as to reciprocate between the position (P3) and the second position (P2) while temporarily stopping at both positions. For example, the wind direction louver 19 is displaced from the third position (P3) to the second position (P2), stops at the second position (P2) for 10 seconds, for example, and then moves from the second position (P2) to the third position (P2). (P3), and stops at the third position (P3) for, for example, 10 seconds (see FIG. 7 (j)).

When the air volume is "weak", the wind direction louver 19 reciprocates between the third position (P3) and the first position (P1) while temporarily stopping at both positions. To
The motor 20 is driven. For example, the wind direction louver 19 is displaced from the third position (P3) to the first position (P1),
After stopping at the first position (P1) for 10 seconds, for example, displacing from the first position (P1) to the third position (P3) and stopping at the third position (P3) for 10 seconds, for example. Are repeated (see FIG. 7 (k)).

When the air volume is "weak", the wind direction louver 1
9 is fixed at the third position (P3) (see FIG. 7 (l)). FIG. 8 is a flowchart showing a control flow for adjusting the sensitivity of the dust detection sensor by changing the detection voltage of the dust detection sensor. Referring to FIG. 8, when the power of air cleaner 1 is turned on, dust detection sensor 27
Is detected (step S7). Next, if the limit switch 22 indicates "desktop" (YES in step S8), a correction for adding the correction value α to the detection voltage A is performed (step S9), and the detection voltage is determined to be A + α and the dust detection is determined. Used for On the other hand, if the limit switch 22 indicates "wall hanging" (step S7).
NO), no correction is made.

As described above, the detection voltage A
By making a correction to itself, it is possible to fill the gap in the detection sensitivity of the sensor depending on the installation mode. Thereafter, the mode is shifted to another mode, and operation and the like are performed. The detection value of the dust detection sensor 27, which may be corrected as in the above flowchart, is used by the display / operation unit 14 to display the level of contamination of the room air.
In addition, the detection value of the dust detection sensor 27 that may be corrected is used for automatic operation performed by changing the purification ability according to the level of dirt.

In this embodiment, the limit switch 22 reliably detects whether the installation is a wall-mounted installation or a placement surface such as a table top, and the operation is performed in the wind direction according to the installation mode. It is possible to make the flow evenly distributed in the room. Also, there is no possibility that ceiling dirt will occur. Also, it is detected whether the installation is a wall-mounted installation in which the sensitivity of the dust detection sensor 27 is improved or a mounting surface such as a table top in which the sensitivity of the dust detection sensor 27 is deteriorated.
In the latter case of the installation, the detection sensitivity is improved by correcting the detection voltage A of the dust detection sensor 27. Therefore, irrespective of the installation mode, the dirt can be detected with high sensitivity, and the automatic operation can be performed in an appropriate operation state according to the degree of air contamination. In addition, the degree of contamination of the indoor air can be accurately displayed by the display / operation unit 14 regardless of the installation mode.

In the above embodiment, the air volume level is switched to four levels by the air volume tap, but the invention is not limited to this.
The air volume level may be switched among a plurality of stages, that is, two or more stages, or a non-stage air volume level without using an air volume tap. Further, in the above embodiment, the detection voltage of the dust detection sensor 27 is corrected according to the installation mode of the air cleaner 1 detected by the limit switch 22, but the present invention is not limited to this.
Correction may be made to the threshold value stored in 32 or the like.

That is, during the automatic operation, the control operation is performed according to the degree of contamination in the air. Therefore, the wind direction louver is determined according to the detection voltage A of the dust detection sensor 27 and the threshold value predetermined for each air volume. Nineteen restriction positions are selected. Correction is applied to each of these threshold values. FIG.
It is a flowchart which shows the flow of control which changes the threshold value of a dust detection sensor and adjusts the sensitivity of a dust detection sensor in the air cleaner which concerns on 2nd Embodiment of this invention. FIG.
, When the power of the air purifier 1 is turned on, the detection voltage A of the dust detection sensor 27 is detected (step S).
11). Next, if the limit switch 22 indicates "desktop" (YES in step S12), the detection voltage A
At the same time, a correction is performed by subtracting γ from the threshold value C, which is a reference for determining the degree of contamination in the air (step S13), and the threshold values are used as C-γ for subsequent determination of dust detection. On the other hand, if the limit switch 22 indicates "wall hanging" (NO in step S12), no correction is performed. Since each of the thresholds is corrected, the gap between the detection sensitivities of the sensors that differ depending on the installation mode can be filled to the same level. Thereafter, the mode is shifted to another mode, and operation and the like are performed.

The display / operation unit 14 displays the level of dirt in the room air detected by the detection value of the dust detection sensor 27 and the threshold value which may be corrected as shown in the flowchart of FIG. In the automatic operation, the air purifier 1 is operated with different purifying ability according to the level of dirt detected by the detected value and the threshold value that may be corrected. In the second embodiment, similarly to the above embodiment, the level of dirt in the indoor air can be accurately displayed regardless of the installation mode, and the automatic operation is performed in an appropriate operation state regardless of the installation mode. be able to.

Further, in the above two embodiments, the limit switch 22 is provided on the back surface 2c of the main body casing 2, but the limit switch 22 may be provided on the bottom surface 2d of the main body casing 2. FIG. 10 is a front view of the air cleaner according to the third embodiment of the present invention when a limit switch is disposed on the bottom surface of a main body casing. FIG.
, The limit switch 22 is disposed inside the bottom surface 2d, and has a limit switch main body 42 and an operation element 43. The operation element 43 protrudes outward from the main casing 2.

In this case, the limit switch 22
When the operator 43 has increased the amount of downward projection, it represents "wall hanging", and when the operator 43 has reduced the amount of projection, it represents "desktop" and is stored in the RAM 31. In the third embodiment, the operator 4 of the limit switch 22
3 protrudes from the bottom surface 2d of the main body casing 2, when the air cleaner 1 is used on a mounting surface such as a floor surface, the mounting surface is installed by increasing or decreasing the amount of protrusion of the operation element 43. It can be directly detected mechanically. Therefore, the installation of the air purifier 1 on the wall can be reliably detected, and the operation can be performed in an appropriate operation state regardless of the installation mode.

Further, limit switches 22 may be provided on both the back surface 2c and the bottom surface 2d of the main casing 2. In this case, it is possible to more reliably detect whether the installation mode is wall mounting or mounting surface installation. It goes without saying that various changes can be made within the scope of the claims of the present invention.

[0051]

According to the first aspect of the present invention, since at least a part of the control content relating to the operation of the air purifier can be changed, the operation can be performed in accordance with the installation mode. According to the second aspect of the present invention, since the limit switch can directly and mechanically detect the type of installation, it is possible to reliably determine whether the device is installed on the mounting surface or the wall surface. Can be detected.

According to the third aspect of the present invention, since the installation mode detecting means is provided in the mounting portion for wall mounting, it is possible to more reliably detect which installation mode is installed. In the invention according to claim 4, according to the installation mode,
Since the restricting position of the wind direction restricting member is set by the driving member, the air is blown in the direction suitable for the installation position during operation, and the flow can be distributed evenly in the room.

According to the fifth aspect of the present invention, at least a part of the control content is changed in consideration of the detection output of the dirt sensor and the installation mode, so that the conventional configuration is controlled only in accordance with the dirt state. In comparison, it is possible to operate in an appropriate operation state.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an air purifier according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of an upper part of the air purifier according to one embodiment of the present invention.

FIG. 3 is a schematic sectional view showing a state immediately before a back surface of a main body casing of the air purifier according to the embodiment of the present invention is attached to a wall surface.

FIG. 4 is a schematic cross-sectional view showing a state where the back surface of the main body casing of the air purifier according to one embodiment of the present invention is attached to a wall surface.

FIG. 5 is a block diagram showing an electric configuration of the air purifier according to one embodiment of the present invention.

FIG. 6 is a flowchart showing a flow of control of the air purifier according to one embodiment of the present invention.

FIGS. 7A to 7L are schematic views of the louver restricting position of the air purifier in accordance with the installation mode and the air volume.

FIG. 8 is a flowchart showing a control flow for adjusting the sensitivity of the dust detection sensor by changing the detection voltage of the dust detection sensor.

FIG. 9 is a flowchart showing a control flow for adjusting the sensitivity of the dust detection sensor by changing the threshold value of the dust detection sensor.

FIG. 10 is a front view of an air purifier according to another embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 air purifier 2 main body casing 9 blower fan motor 10 blower fan 19 wind direction louver 20 motor 22 limit switch 34 control circuit

Claims (5)

[Claims] A blower fan (1) driven by a motor (9).
(0) is generated from the suction port (12) through the purifying means (3, 4,
In the air purifier that flows through the ventilation path to the outlet (13) through (5, 6), the first installation mode and the wall (Q) installed on the mounting surface (P) consisting of the floor or tabletop A second installation mode for installation is selectable, and a casing in which the air passage is partitioned is provided.
(2), an installation mode detection means (22) for detecting which of the first and second installation modes is installed, and an installation mode detected by the installation mode detection means (22), An air purifier comprising: a control means (34) for changing at least a part of control contents relating to an operation of the air purifier. 2. The casing (2) has a first portion (2d) facing the mounting surface (P) in a first installation mode and a wall portion (Q) in a second installation mode. And a second portion (2c), wherein the installation mode detecting means (22) includes a limit switch (22) provided on at least one of the first and second portions. The air purifier according to 1. 3. The second portion (2c) is a mounting portion for a wall (Q).
The air purifier according to claim 2, further comprising: a mounting portion (21) mounted to the (25), wherein the mounting portion (21) is provided with the installation mode detecting means (22). 4. A wind direction regulating member (19) movably provided at the outlet (13) for regulating the direction of the wind blown from the outlet (13) at a predetermined regulating position. And a driving member (20) for displacing (19), wherein the control content related to the driving operation includes setting of a regulated position of the wind direction regulating member (19) by the driving member (20). The air purifier according to any one of claims 1 to 3, wherein: 5. A dirt detection sensor (27) arranged in the casing (2) for detecting dirt in the room air and outputting the dirt to the control means (34), wherein the control means (34) is provided in an installation mode. The air according to any one of claims 1 to 4, wherein at least a part of the control content is changed according to the installation mode detected by the detection means (22) and an output from the dirt detection sensor (27). Cleaner.