JP2000274795A - Air flow guiding mechanism and air cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently introduce a smoke or the like of a cigarette generated near a suction port with a simple constitution. SOLUTION: Louvers 50 are movable to a guiding position projected forward of a suction port opened at a front surface of a cabinet 11 from a storage position to be stored in a louver storage unit 48. When a mode set button 64 is pressed in the state that the louvers 50 are disposed in a storage position to turn a latch member 85 from a locking position to a releasing position, the louvers 50 are moved to the guiding position by an urging force of a spirally coiled spring 58. When a suction fan in the cabinet 11 is rotated in this state, a smoke or the like of a cigarette rising and diffusing near the suction port of the cabinet 11 can be efficiently sucked.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air flow guide mechanism suitable for application to a louver mechanism for controlling the flow of air introduced into an air conditioner such as a cooling and heating device, and an air purifier using the air flow guide mechanism. Related to the device.

[0002]

2. Description of the Related Art In recent years, air purifiers have often been used in general homes and offices to purify air in living rooms, reception rooms, and conference rooms. Examples of the air cleaning device used for such applications include, for example,
A cabinet having a front panel, a filter mounted on the back side (inside of the cabinet) of an intake port provided on the front panel, a fan disposed behind the filter, and a motor connected thereto. There is something. In this air purifying device, the fan is rotated by a motor during operation, so that air outside the device is sucked from an intake port, and this air passes through a filter, and is exhausted to the outside after dust and odors are removed by the filter. You. This type of air cleaning method is widely applied to air conditioners and the like.

[0003] By the way, many smokers bring an ashtray in front of this kind of air purifier and taste cigarettes. At this time, before or after lighting the cigarette, the power switch of the air purifier is turned on and the fan is operated to purify the cigarette smoke by the air purifier.

[0004]

However, when the tobacco is placed in an ashtray in front of the air purifier,
In some cases, the cigarette smoke is diffused into an upper region of the intake port without being introduced into the intake port. Such a situation
It is often seen when using an air purifying device with a low suction capacity by a fan or an air purifying device called a "cigarette only mode" that cannot employ an operation method that temporarily increases the suction capacity by a fan. Therefore, an air purifying device having a low suction capacity is easily affected by an air flow outside the device, the position of cigarettes, and the like, and may not sufficiently purify tobacco smoke. In addition, air purifiers equipped with a cigarette-only mode require large fans and powerful motors to increase the suction capacity, and also require complicated control methods. There is a problem that leads to up.

The present invention has been made in consideration of the above facts, and has an airflow guide mechanism capable of efficiently introducing tobacco smoke and the like generated in the vicinity of an intake port to an intake port with a simple configuration, and an air purifier using the airflow guide mechanism. The purpose is to provide.

[0006]

An airflow guide mechanism according to claim 1 is an airflow guide mechanism for guiding an airflow to an intake port opened on an outer surface of a housing, wherein the airflow guide mechanism is provided at a peripheral portion of the intake port in the housing. A storage portion provided along the outer surface of the housing, the storage portion being concaved with respect to the outer surface of the housing, a storage position stored in the storage portion, and a guide protruding from the storage position and guiding an airflow around the intake port to the intake port. An airflow guide member movable to the respective positions, an urging member for urging the airflow guide member to the guide position, a locking position for locking the airflow guide member moved to the storage position, and the airflow A latch member rotatably supported between a release position for releasing the engagement of the guide member and the airflow guide member locked by the latch member when the air flow guide member is moved to the guide position; An operation member which rotates to the release position from the locking position and has a.

According to the airflow guide mechanism having the above-described structure, if the operating member rotates the latch member that has locked the airflow guide member from the locked position to the release position, the airflow guide member is actuated by the urging force of the urging member. Move from the storage position to the guide position. Thereby, the airflow guide member projects from the storage portion and projects forward with respect to the air inlet, so that airflow flowing from the specific space region corresponding to the shape of the airflow guide member to the air inlet can be preferentially generated, and the specific airflow can be generated. Since the airflow that tends to flow from the space area to the outside of the air inlet can be blocked by the airflow guide member, air near the specific space area can be efficiently sucked from the air inlet.

Further, the latch member is rotatably supported between a locking position for locking the airflow guide member moved to the storage position and a release position for releasing the locking of the airflow guide member. The latch member can be separated from the airflow guide member to move the airflow guide member to the guide position without causing elastic deformation of the latch member, and the airflow guide member that has moved to the storage position can be locked by the latch member. Therefore, even if the airflow guide member is locked by the latch member and the operation of detaching the latch member from the airflow guide member is performed many times, it is possible to prevent the latch member from being plastically deformed by repeated stress. As a result, the latching state of the airflow guide member by the latch member does not become unstable over a long period of time, the airflow guide member that has been moved to the storage position by the latch member can be reliably latched, and the latch member is latched by the operating member. Can be reliably moved to the release position where it is separated from the airflow guide member.

[0009] The airflow guide mechanism according to the second aspect of the present invention is characterized in that:
In the airflow guide mechanism according to 1, the latch member is
During the movement of the airflow guide member from the guide position to the storage position, the airflow guide member rotates from the lock position to the release position, and returns to the lock position when the airflow guide member reaches the storage position. Things.

According to the airflow guide mechanism having the above structure, the movement of the airflow guide member from the guide position to the storage position is not hindered by the latch member, and when the airflow guide member moves to the storage position, the latch member is moved to the locking position. And automatically locks the airflow guide member. Therefore, the user can store the airflow guide member in the storage section simply by moving the airflow guide member at the guide position to the storage position,
The operation of storing the airflow guide member in the storage section is simplified.

[0011] The air purifying apparatus according to the third aspect is the first aspect.
Or an air flow guide mechanism, a suction means for generating a negative pressure inside the housing to suck air from the air inlet, and a purifying means for purifying the air sucked from the air inlet. Things.

According to the air purifying apparatus having the above-described structure, if the latch member, which locks the airflow guide member by the operating member, is rotated from the locked position to the release position, the airflow guide member is biased by the urging force of the urging member. Move from the storage position to the guide position. Accordingly, if the airflow guide member protrudes from the storage portion and protrudes forward with respect to the intake port, and in this state, the suction means is operated to generate a negative pressure inside the housing, the shape corresponds to the shape of the airflow guide member. Since the airflow flowing from the specific space region to the intake port can be generated preferentially, and the airflow that is going to flow from the specific space region to the outside of the intake port can be blocked by the airflow guide member, for example, the airflow guide member Is bent along the periphery of the intake port and has a shape that opens downward and forward (for example, a U-shape that opens downward), even if the intake capacity of the intake means is constant, The smoke of the tobacco rising and spreading in the space area near the oblique front of the air inlet can be efficiently inhaled from the air inlet. As a result, cigarette smoke generated in the vicinity of the intake port can be efficiently inhaled from the intake port into the inside of the apparatus, and the air containing the cigarette smoke can be exhausted to the outside of the apparatus after being purified by the purifying means.
It is possible to effectively suppress the diffusion of tobacco smoke and tobacco odor into the room.

Further, even when the airflow guide member is locked by the latch member and the operation of detaching the latch member from the airflow guide member is performed many times, the latch member can be prevented from being plastically deformed by repeated stress. The latching state of the airflow guide member by the latch member does not become unstable over a long period of time, the airflow guide member that has been moved to the storage position by the latch member can be reliably latched, and the latch member is moved by the operation member to the airflow guide. It can be reliably moved to the release position where it is separated from the member.

The air purifying apparatus according to the fourth aspect is the third aspect.
In the air purifying apparatus described above, the amount of air sucked from the intake port becomes a preset amount in conjunction with an operation of rotating the latch member from the locking position to the release position by the operating member. And control means for controlling the suction means.

According to the air purifying apparatus having the above-described structure, the amount of air sucked into the housing from the air inlet can be set to a predetermined amount while the airflow guide member is at the guide position.
The amount of air sucked into the housing from the air inlet can be set to an arbitrary amount according to the nature and amount of the substance contained in the air in the specific space region corresponding to the shape of the airflow guide member. Therefore,
For example, if the air in a specific space area contains something that is desired to be prevented from spreading indoors, such as cigarette smoke,
If the amount of intake air by the intake means is increased, the diffusion of tobacco smoke and tobacco odor into the room can be effectively suppressed as compared with the case where the airflow guide member is simply moved to the guide position.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an air cleaning apparatus according to an embodiment of the present invention will be described with reference to the drawings.

FIGS. 1 to 4 show an air cleaning apparatus 10 according to an embodiment of the present invention. As shown in FIG. 1, the air purifying device 10 includes a resin cabinet 11 formed in a substantially rectangular parallelepiped shape as an outer portion of the device main body. As shown in FIG. 3, the cabinet 11 is provided with a concave grill mounting portion 12 on the front surface, which is one surface in the depth direction. The grill mounting portion 12 has a rectangular shape that is long in the height direction (arrow H direction) with respect to the width direction of the apparatus (direction of arrow A in FIG. 1) when viewed from the front. A front grill 14 serving as a lid is detachably attached to the grill attachment portion 12.

The front grille 14 is provided with a front panel portion 15 having a rectangular plate shape. The front panel portion 15 has a height and a width in the height direction of the grill mounting portion 12, respectively. The length is slightly smaller than the dimension in the width direction and the width direction. Here, front grill 1
In a state where the front panel 4 is mounted on the grill mounting section 12, the front surface of the front panel section 15 is supported on substantially the same plane as the front surface of the cabinet 11. On the front of the front panel section 15,
As shown in FIG. 1, a large number of slit-shaped intake ports 16 which are long in the height direction are arranged along the width direction, and these intake ports 16 have a front panel portion 15 having a vertical lattice-like front surface. These intake ports 16 penetrate to the back surface of the front panel section 15 as shown in FIG.

As shown in FIG. 6, the front grille 14 has a thin plate-like top plate 17 and a side plate 1 extending rearward along the upper end and both side ends of the front panel 15.
8 are provided integrally. At the rear end face of the top plate 17, locking members 1 protruding rearward at both ends in the width direction, respectively.
9 are provided integrally. These pair of locking members 1
Each of the nails 9 is provided with a claw portion 20 that is bent upward at a substantially right angle at the distal end.

On the back surface of the front panel portion 15, a pair of engaging members 21 projecting rearward from the lower end portion are integrally provided. The pair of engaging members 21 are respectively disposed at both ends in the width direction of the front panel portion 15, and have a truncated cone shape at the front end portion that decreases in diameter toward the front end side. A press-fit portion 22 having a split groove is provided. The press-fitting portion 22 can be elastically contracted in the width direction of the split groove by the split groove.

On the other hand, as shown in FIG. 3, a partition wall 24 is provided in the cabinet 11 for partitioning the grill mounting portion 12 and the internal space behind the grill mounting portion 12. A pair of locking holes 25 corresponding to the pair of locking members 19 of the front grill 14 are formed near the upper end of the partition wall 24. Further, a pair of engagement holes 26 respectively corresponding to a pair of engagement members 21 of the front grill 14 are provided below the grille mounting portion 12 in the cabinet 11.
Are formed.

Here, the locking hole 25 is shaped so that the locking member 19 can be inserted without being deformed.
The inner diameter at the inlet is slightly smaller than the maximum diameter of the press-fit portion 22 of the engagement member 21, and the inner diameter at the back side of the inlet expands stepwise and is slightly larger than the maximum diameter of the press-fit portion 22. .

When the front grille 14 is mounted on the grill mounting portion 12, the locking member 19 is inserted into the locking hole 25 to lock the rear surface side of the partition wall 24 with the claw portion 20. The press-fitting portion 22 of the joining member 21 is press-fitted to the inner side of the entrance of the engagement hole 26. Thereby, the front grill 14
Is mounted on the grill mounting portion 12 of the cabinet 11 as shown in FIG.

Further, the front grill 14 is attached to the grill mounting portion 1.
In order to remove the front grille 2, first, the vicinity of the lower end of the front grill 14 is pulled forward. Thereby, the engagement member 21
The press-fit portion 22 is withdrawn from the entrance of the engagement hole 26 while being elastically deformed in the radially-reducing direction. Next, the front grill 14
The whole is slightly moved downward to release the locked state by the claw portion 20. Thereby, the locking member 19 can be pulled out from the locking hole 25, and the front grill 14 can be removed from the grill mounting portion 12.

The front panel 1 of the front grill 14
As shown in FIG. 4, a thick plate-like filter 28 is mounted between the partition wall 5 and the partition wall 24. There are various types of filters 28 depending on the application and the like. In the present embodiment, for example, a filter 28 in which nonwoven fabric and activated carbon are laminated in the thickness direction is used.

The partition wall 24 is integrally provided with a plurality of positioning members 30 for positioning the filter 28 on the front surface of the front grill 14 facing the front panel 15. These positioning members 30 protrude forward from the partition wall 24 and are arranged so as to correspond to corners or sides on the outer peripheral surface of the filter 28, respectively. These positioning members 30 contact the corners and sides of the outer peripheral surface of the filter 28 to position the filter 28 in the height direction and the width direction, and abut the back surface of the filter 28 to position the filter 28 in the depth direction. are doing.

On the other hand, on the back surface of the front panel portion 15,
A plurality of pressing projections 32 protruding toward the partition wall 24 are provided. When the front grill 14 is mounted on the grill mounting portion 12 as shown in FIG. This allows
The filter 28 is sandwiched and fixed by the positioning member 30 of the partition wall 24 and the pressing projection 32 of the front panel 15.

As shown in FIG. 4, a circular opening 34 is formed substantially at the center of the partition wall 24. In the cabinet 11, a sirocco fan 38 is arranged behind the circular opening 34 as shown in FIG. The sirocco fan 38 is provided with a disc-shaped closing plate 39 at the rear end in the axial direction, and a ring-shaped support plate 40 at the front end in the axial direction on the intake side. Closing plate 39 and support plate 40
And a plurality of blades 41 are stretched between them. These blades 41 are arranged at regular intervals along the circumferential direction, and are supported by the closing plate 39 and the supporting plate 40 so as to be inclined with respect to the radial direction and the tangential direction.

In the cabinet 11, a motor 43 is arranged between the closing plate 39 of the sirocco fan 38 and the partition wall 24. The rotation shaft 43A of the motor 43 is connected and fixed to the center of the closing plate 39. A motor whose rotation speed can be controlled is used as the motor 43.
A shaded or condenser type AC motor driven at 100 V is used. Further, a DC inverter motor driven by a direct current may be used as the motor 43 according to the configuration of the power supply unit and the like.

Here, when the sirocco fan 38 is rotated in a predetermined direction by the motor 43, the inner peripheral space of the blade 41 is in a negative pressure state, and air flows from the support plate 40 into the inner peripheral space of the blade 41. This air is exhausted along the tangential direction from the gap between the blades 41.

At the top of the cabinet 11, an exhaust port 45 is provided at the left end on the rear side. A wire netting 46 is provided on the exhaust port 45 to prevent foreign matter from entering the cabinet 11. The air exhausted from the sirocco fan 38 is exhausted from the exhaust port 45 of the cabinet 11 to the outside.

In the air cleaning device 10, when a drive current is supplied to the motor 43 to rotate the sirocco fan 38, air outside the device is sucked from the air inlet 16 of the front grill 14. After the air is cleaned by removing dust and odor by the filter 28, the air is discharged from the exhaust port 45 to the outside of the apparatus.

As shown in FIG. 1, a slit-shaped louver storage section 48 is provided in the grill mounting section 12 of the cabinet 11 along the upper surface and both side surfaces of the front panel section 15. The louver storage section 48 is provided for the grill mounting section 12.
And a front panel portion 15 and a gap bent in a substantially U-shape.

As shown in FIG. 1, the louver storage section 48 is provided with a louver 50 for controlling the flow of air taken into the cabinet 11 from the intake port 16. The louver 50 includes a top plate portion 51 having a rectangular flat shape elongated in the width direction, and side plate portions 52 extending downward are integrally provided at both ends of the top plate portion 51. . The pair of side plate portions 52 are parallel to each other, and a cylindrical bearing portion 53 is provided on the outer surface of each of the side plate portions 52 near the lower end as shown in FIG. Are arranged so as to be coaxial with each other.

On the other hand, on both sides of the grill mounting portion 12,
A pair of support shaft portions 55 (see FIG. 2) corresponding to the bearing portions 53 of the louvers 50 are provided. These support shaft portions 55 are formed in a cylindrical shape having an outer diameter slightly smaller than the inner diameter of the bearing portion 53, and are fitted into the bearing portions 53 of the louver 50, respectively. Thereby, the louver 50 is rotatably supported by the cabinet 11 about the support shaft 55, and can move from the storage position shown by the solid line in FIG. 2 to the guide position shown by the two-dot chain line.

When the louver 50 is in the storage position, as shown in FIG. 2, the remaining portion of the top plate portion 51 except the end on the guide position side and substantially the entire side plate portion 52 are inserted into the louver storage portion 48. Is done. When the louver 50 is at the guide position, the top plate 51 and the side plate 52 project forward from inside the louver storage 48 as shown in FIG. Thus, the top plate portion 51 projects forward along the upper surface of the front panel portion 15, and the pair of side plate portions 52 project forward along both side surfaces of the front panel portion 15. In this guide position, the side plate portion 52 is supported such that the protruding length from the front surface of the cabinet 11 gradually decreases from the upper end to the lower end as shown in FIG.

As shown in FIG. 5, on the outer side surfaces of the pair of side plate portions 52, a columnar spring fixing portion 57 is provided above the bearing portion 53, respectively. This spring fixing portion 57
As shown in FIG. 2, the torsion coil spring 58 is inserted into the coil portion 58A of the torsion coil spring 58 and
I support. This torsion coil spring 58
One end portion is fixed to the side plate portion 52 and the other end portion is fixed to the cabinet 11, and is twisted about the spring fixing portion 57 so as to always bias the louver 50 to the guide position.

At the top of the cabinet 11, an operation panel 59 is provided on the front side as shown in FIG.
The operation panel 59 includes a power switch 60, an air volume setting button 61, a timer setting button 63, and an operation display LE.
D62 and a mode setting button 64 for setting a smoking mode are arranged. Also, on the front of the cabinet 11,
Above the front grill 14, a liquid crystal display 66 for displaying the operation status of the apparatus to the user is arranged.

In the cabinet 11, a control board 68 is provided below the operation panel 59 as shown in FIG. On the control board 68, printed wiring (not shown) is formed, and various electronic components are mounted. The control board 68 and the electronic components mounted thereon constitute a control unit 70 for controlling the entire apparatus.

As shown in FIG. 7, the mode setting button 64 has a substantially cylindrical shape whose top surface is closed by a top plate portion 64A curved in a dome shape. Inside the cabinet 11, there is provided a cylindrical button holding portion 72 into which the lower side of the mode setting button 64 is slidably inserted along the height direction, and the bottom side of the button holding portion 72 is a disc. It is closed by the upper bottom plate 72A. This bottom plate portion 72
A has a guide hole 7 penetrating from the upper surface to the lower surface at the center.
2B is formed, and a cylindrical fitting portion 72C centering on the guide hole 72B is formed on the upper surface.

As shown in FIG. 7, the bottom plate 72A is integrally provided with a hollow guide 74 projecting downward from the bottom plate 72A in front of the guide hole 72B. The upper end of the guide portion 74 is open on the upper surface of the bottom plate portion 72A. An extension guide 75 protruding downward is provided at the distal end of the guide 74, and the extension guide 75 penetrates the control board 68 and protrudes below the control board 68.

As shown in FIG. 7, a coil spring 76 is arranged between the top plate portion 64A of the mode setting button 64 and the bottom plate portion 72A of the button holding portion 72 in a state compressed in the axial direction. The lower end of the coil spring 76 is fitted on the outer peripheral surface of the fitting portion 72C of the button holding portion 72. Here, since the coil spring 76 is in a compressed state, the mode setting button 64 is constantly urged upward by the urging force of the coil spring 76.

The top plate 64A of the mode setting button 64 is provided with a guide projection 78 projecting downward at the center of the lower surface as shown in FIG. This guide projection 78
Is slidably inserted into the guide hole 72B of the button holding portion 72. On the lower surface of the top plate portion 64A, a pressing portion 80 is provided which protrudes downward in front of the guide projection 78. The pressing portion 80 is longer than the guide protrusion 78 and is slidably inserted into the guide portion 74 of the button holding portion 72 and slidably contacts the extension guide portion 75. The pressing portion 80 is connected to the control board 6 together with the extension guide portion 75.
8 and protrudes further below the lower end of the extension guide 75.

Further, a stopper portion 81 is provided on the side surface of the pressing portion 80 so as to protrude rearward. As shown in FIG. 7, the stopper 81 presses against the lower end of the guide 74 when the mode setting button 64 is not pressed down, thereby restricting the upward movement of the mode setting button 64. Therefore, the mode setting button 64 can be moved only downward from the position shown in FIG. 7, and when the top plate portion 64A is pushed from above and goes down to the position shown in FIG. It comes into contact with the bottom plate portion 72A and stops.

As shown in FIG. 7, the cabinet 11 is formed with an inverted L-shaped opening 83 near the connection between the upper surface of the grille mounting portion 12 and the partition wall 24 as viewed from the side of the apparatus. ing. The opening 83 has a slit shape with a narrow opening width in the width direction, and is arranged in the width direction so as to correspond to the position of the pressing portion 80 of the mode setting button 64. In the opening 83, bearing holes (not shown) are provided on both sides in the width direction that face each other so as to be coaxial with each other.

In the opening 83, a latch member 85 is rotatably arranged as shown in FIG. The latch member 85 extends in the depth direction of the device. On both side surfaces of the latch member 85, a round bar-shaped support shaft portion 86 protruding in the width direction is provided at a substantially central portion in the longitudinal direction. I have. The pair of support shafts 86 are rotatably inserted into a pair of bearing holes (not shown) of the opening 83. Thus, the latch member 85 is supported so as to be rotatable about the support shaft 86.

The latch member 85 has one end on the rear side with respect to the support shaft 86 protruding rearward from the partition wall 24.
At one end of the latch member 85, a pressed surface 87 that is inclined upward from the distal end of the lever toward the support shaft 86 is formed. The pressed surface 87 is the mode setting button 64
Is located directly below the pressing portion 80.

The other end of the latch member 85 on the front side with respect to the support shaft 86 is projected into the louver storage section 48. The other end of the latch member 85 is provided with a locking portion 88 that protrudes downward along a tangential direction with respect to the support shaft portion 86, and a distal end side of the locking portion 88 from the tip of the lever to the support shaft portion 86. A sliding surface 89 inclined downward toward the side is formed. A substantially cubic spacer 90 is fixed to the upper surface of the other end of the latch member 85.

On the other hand, the top plate 17 of the louver 50
As shown in FIG.
A locked portion 92 corresponding to the locking portion 88 is provided. The locked portion 92 extends in a tangential direction with respect to the support shaft portion 55, which is the center of rotation of the louver 50, and has a distal end portion bent upward in an L-shape. Both ends in the width direction of the locked portion 92 are separated from other portions by a pair of slits 93 cut out from the rear end of the top plate portion 17 to the guide position side. On the upper surface side of the locked portion 92, a guide surface 94 that is inclined upward from the distal end surface toward the guide position side is formed.

Here, the latch member 85 is moved by a torsion coil spring 95 attached to the support shaft 86 as shown in FIG.
Are urged to a substantially horizontal locking position as shown in FIG. Assuming that the air cleaning device 10 is installed in a substantially horizontal place during operation, by balancing the weight of the latch member 85 around the support shaft 86, the elasticity of the torsion coil spring 95 and the like can be improved. Without using members
It is also possible to always bias the latch member 85 to the locking position.

In the air cleaning device 10 of the present embodiment, the user moves the louver 50 from the guide position shown in FIG.
The guide surface 94 of the locked portion 92 comes into contact with the sliding surface 89 of the latch member 85 immediately before the storage position, and the guide surface 94 as the louver 50 further approaches the storage position. And the sliding surface 89 relatively slide.
At this time, the mode setting button 64 is
6 is held at the upper limit position shown in FIG. In this state, when the guide surface 94 and the sliding surface 89 relatively slide, the latch member 85 moves to the guide surface 94.
And the sliding surface 89 are rotated counterclockwise by a component force generated when sliding. When the louver 50 reaches the retracted position, the latch member 85 returns to the locked position by the torsion coil spring 95 and locks the locked portion 92 by the locking portion 88 as shown in FIG. The louver 50 is restrained at the storage position.

When the louver 50 is restrained at the storage position by the latch member 85 as shown in FIG.
When the user presses the mode setting button 64, the pressing unit 8
0 presses the pressed surface 87 of the latch member 85 downward. As a result, the latch member 85 is rotated counterclockwise from the locked position as shown in FIG. 8, and is held at the release position. Thereby, the locking portion 88 of the latch member 85
Is disengaged from the locked portion 92 of the louver 50, and the louver 50 is moved from the storage position to the guide position by the urging force of the torsion coil spring 58.

On the lower surface of the control board 68, a latch member 85 is provided.
A tact switch 96 is provided at a portion facing the spacer 90. When the latch member 85 rotates to the release position as shown in FIG. 8, the tact switch 96 is depressed by the spacer 90 and outputs a contact signal. A tact switch 97 is also provided at the upper end of the partition wall 24. When the louver 50 moves to the retracted position as shown in FIG.
2 is pressed by the end face on the storage position side to output a contact signal.

Subsequently, the air cleaning device 10 of the present embodiment
The configuration of the control unit 70 will be briefly described. The control unit 70 includes a power supply unit 10 as shown in FIG.
4 and a motor control unit 105 are provided. The power supply unit 104 and the motor control unit 105 are connected to the AC plug 99 shown in FIG. When the power switch 59 of the operation panel 59 is pressed, 100 V AC is converted to the DC voltage VCC by the power supply unit 104. The DC voltage VCC from the power supply unit 104 is supplied to a microcomputer (hereinafter, referred to as a microcomputer) 106 as a control unit, a motor control unit 105, and an LED 62.

The motor control unit 105 is connected to the output stage of the microcomputer 106. The motor control unit 105 controls the motor 43 based on a motor control signal from the microcomputer 106.
To rotate the motor 43 at a speed corresponding to the “strong” operation or the “weak” operation.

A power switch 59, an air volume setting button 61, a timer setting button 63, and tact switches 96 and 97 are connected to the input stage of the microcomputer 106, respectively. A liquid crystal display 66 is connected to an output stage of the microcomputer 106. The liquid crystal display 66 performs “strong” operation based on the drive signal and display data from the microcomputer 106,
The image corresponding to the "light" driving, the smoking mode, and the like are displayed.

Next, the air cleaning device 1 according to the present embodiment.
The operation of 0 will be described. In the following description according to the present embodiment, it is assumed that AC plug 99 is connected to an outlet (not shown) for supplying power of AC100V.

The air cleaning device 10 according to the present embodiment can be operated in two types of operation modes. There are two types of driving modes: normal mode and smoking mode.
The device operation in the smoking mode is performed until a predetermined time (15 minutes in the present embodiment) elapses after the mode setting button 64 is pressed, unless there is an interruption during the operation.

First, the case where the air cleaning device 10 is operated in the normal mode will be described. Power switch 5
9 and the power switch 59 is turned on, the microcomputer 1
06 outputs a motor control signal corresponding to the “weak” operation to the motor control unit 105. Thereby, the motor 43 starts rotating, and the motor 43 is controlled to a rotation speed corresponding to the “weak” operation. Further, when the air volume setting button 61 is pressed after the operation of the apparatus is started, the microcomputer 106 starts the motor control unit 1.
05 is switched to a signal corresponding to the “strong” operation, and when the air volume setting button 61 is pressed again, the motor control signal output to the motor control unit 105 is changed to a signal corresponding to the “weak” operation. return. Therefore, every time the user presses the air volume setting button 61, the rotation speed of the motor 43 changes from low speed to high speed or from low speed to high speed.

When the power switch 59 is pressed to start the operation of the air cleaning apparatus 10, the sirocco fan 38 is rotated by the motor 43 at a rotation speed (high or low) corresponding to the "strong" operation or the "weak" operation. I do. As a result, the air sucked into the cabinet 11 through the air inlet 16 passes through the filter 28, and after the dust and odor are removed and cleaned by the filter 28, the air is exhausted to the outside from the air outlet 45.

At this time, when the sirocco fan 38 is rotating at a high speed corresponding to the “strong” operation, the amount of air per unit time sucked from the intake port 16 of the front grill 14 relatively increases. When the vehicle is rotating at a low speed corresponding to the "weak" operation, the amount of air per unit time sucked from the intake port 16 is relatively reduced. Therefore,
If you set "Strong" operation when operating the device in normal mode,
Since the amount of air to be purified per unit time can be increased, for example, when the indoor air is purified in a short time,
It is possible to cope with a large amount of air pollutants released into a room per unit time.

If the "weak" operation is set, the amount of air that can be cleaned per unit time is reduced, but the power consumption and noise level of the apparatus can be reduced. It is suitable when the user wants to continue operating the device at bedtime.

Next, the air purifying device 1 is operated in the smoking operation mode.
The case of driving 0 will be described.

In the air purifying apparatus 10, when the mode setting button 64 is pressed while the louver 50 is stored in the louver storage section 48, the louver 50 is moved to the louver storage section 48.
It protrudes from inside and automatically moves to the guide position,
The tact switch 96 on the lower surface of the control board 68 is pressed by the spacer 90 of the latch member 85 to operate. The tact switch 96 operates and simultaneously outputs a contact signal to the microcomputer 106.
Output to The contact signal from the tact switch 96 is an interrupt signal for starting the smoking mode, and the microcomputer 106 receives the contact signal from the tact switch 96 even when the device is operated in the normal mode. Or, even when stopped, the operation in the smoking mode is forcibly started.

When the microcomputer 106 starts the operation in the smoking mode, the microcomputer 106 outputs a motor control signal corresponding to the “strong” operation to the motor control unit 105 and, at the same time, starts counting time with a built-in timer 107. Here, the timer 10
7 measures the time of 10 minutes from the start of the time measurement, generates a first time-up signal, and continues the time measurement.

When the timer 107 generates the first time-up signal, the microcomputer 106
The type of motor control signal to be output to is switched to a signal corresponding to "weak" operation. When the timer 107 measures the time for 5 minutes after outputting the first time-up signal,
The second time-up signal is generated and the timing is stopped. When the timer 107 generates the second time-up signal, the microcomputer 106 ends the smoking mode and stops the operation of the device.

When the mode setting button 64 is pressed to set the smoking mode as described above, the microcomputer 106 operates the sirocco fan 38 at a high speed corresponding to the "strong" operation with the louver 50 at the guide position. After rotating for 10 minutes, the sirocco fan 38 is rotated at a low speed corresponding to the "weak" operation for 5 minutes to stop the operation of the apparatus.

However, during driving in the smoking mode, the louver 5
When 0 is returned to the storage position and when the power switch 59 is pressed, the microcomputer 106 suspends the smoking mode. Specifically, when the louver 50 is returned from the guide position to the storage position by the user during driving in the smoking mode,
The tact switch 97 is operated by the louver 50 to output a contact signal to the microcomputer 106. At this time, the microcomputer 106 resets the timer 107 to stop timing, and at the same time, changes the operation mode of the apparatus from the smoking mode to the normal mode, and rotates the sirocco fan 38 at a speed corresponding to the "weak" operation. Therefore, the "weak" operation continues until the power switch 59 is pressed.

When the power switch 59 is pressed by the user during driving in the smoking mode, the power switch 59 is pressed.
Output a contact signal to the microcomputer 106. At this time, the microcomputer 106 resets the timer 107 to stop timing, and at the same time, stops the power supply to the motor 43 to stop the operation of the apparatus.

According to the air purifying apparatus 10 of the present embodiment described above, if the mode setting button 64 is pressed and the latch member 85 is rotated from the locked position to the released position by the mode setting button 64, the louver 50 is turned on. The torsion coil spring 58 moves from the retracted position to the guide position by the urging force. As a result, the louver 50 is stored in the louver storage section 48.
The sirocco fan 38 protrudes forward from the intake port 16 and rotates the sirocco fan 38 in this state.
1. If a negative pressure is generated inside, airflow flowing from a specific space region corresponding to the shape of the louver 50 to the intake port can be preferentially generated, and it is attempted to flow from the specific space region to the outside of the intake port. The louver 50 can block the flowing air current.

Here, since the louver 50 is bent in a substantially U-shape along the upper end portion and both side end portions of the intake port 16 and opens downward and forward, the louver 50 near the oblique front of the intake port 16 is formed. The tobacco smoke that rises and spreads in the space region can be efficiently inhaled from the air inlet. As a result, the air cleaning device 10
Is placed on a table such as a table or an office desk, and the smoke of cigarettes generated from an ashtray or the like placed near the front of the air inlet 16 of the air purifying device 10 on this table is efficiently taken into the air inlet 1.
After being sucked into the interior of the cabinet 11 from the cabinet 6 and air containing tobacco smoke is cleaned by the filter 28, the air can be exhausted to the outside of the cabinet 11, so that the diffusion of tobacco smoke and tobacco odor into the room can be effectively suppressed. .

Further, in the air purifying apparatus 10 of the present embodiment, when the mode setting button 64 is pressed, the microcomputer 10
6 automatically starts driving in the smoking mode,
Since the sirocco fan 38 rotates at a speed corresponding to the "strong" operation for 0 minutes, the amount of intake air during the period substantially including the period from when the cigarette is lit until the fire is extinguished can be increased. It is possible to effectively suppress the diffusion of tobacco smoke and tobacco odor into the room.

In the smoking mode, since the sirocco fan 38 rotates at a speed corresponding to the "weak" operation for 5 minutes after the "strong" operation for 10 minutes, cigarettes are generated even after the fire is extinguished. The diffusion of tobacco odor into the room can also be prevented.

Further, in the air purifying apparatus 10 of the present embodiment, the locking position at which the locking portion 88 of the latch member 85 locks the locked portion 92 of the louver 50 moved to the storage position, and the locking position of the louver 50 are determined. Since the latch member 85 is rotatably supported between the release position where the latch member 85 is detached from the latch portion 92, the latch portion 85 of the latch member 85 can be resiliently deformed without causing elastic deformation of the latch member 85. The louver 50 can be moved to the guide position by detaching from the locked portion 92, and the locked portion 92 of the louver 50 that has moved to the storage position can be locked by the locking portion 88 of the latch member 85. The mode setting button 64 is retained even if the louver 50 is moved to the guide position by engaging the louver 50 with the latch member 85 and disengaging the latch member 85 from the louver 50 to the guide position.
The latch member 85 can be prevented from being plastically deformed by the repeated stress from. As a result, the latch member 85
The locking state of the louver 50 does not change over a long period of time, the louver 50 moved to the storage position by the latch member 85 can be reliably locked, and the mode setting button 6
4, the latch member 85 can be reliably moved to the release position where the latch member 85 is separated from the louver 50.

In the above description, only the case where the airflow guide mechanism according to the present invention is applied to the air purifying apparatus 10 for purifying air with the filter (air filter) 28 has been described. The mechanism can be applied to other air purifying devices having a structure different from that of the air purifying device 10, such as an ion-adsorbing air purifying device, and further to an air conditioner that introduces air into the device, such as a cooling and heating device. If the airflow guide mechanism according to the present invention is applied to these devices, the louver 50 (airflow guide member) at the guide position effectively sucks air from a specific space region corresponding to the shape of the louver 50. The function and effect of being able to obtain is obtained.

[0076]

As described above, according to the airflow guide mechanism of the present invention, tobacco smoke generated near the intake port can be efficiently introduced into the intake port with a simple configuration.

Further, according to the air purifying apparatus of the present invention, it is possible to efficiently introduce tobacco smoke generated near the intake port to the intake port with a simple configuration, and to effectively diffuse tobacco smoke and tobacco odor into the room. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a louver of an air purifying apparatus according to an embodiment of the present invention is at a guide position.

FIG. 2 is a side sectional view showing a state in which the louver of the air purifying apparatus according to the embodiment of the present invention is in a storage position and a guide position.

FIG. 3 is a side sectional view showing a state before the front grill of the air cleaning device according to the embodiment of the present invention is mounted on the grill mounting portion.

FIG. 4 is a side sectional view showing a state in which a front grill of the air purifying apparatus according to the embodiment of the present invention is mounted on a grill mounting portion.

FIG. 5 is a perspective view showing an overall shape of a louver of the air purifying apparatus according to the embodiment of the present invention.

FIG. 6 is a perspective view showing an overall shape of a front grill of the air cleaning device according to the embodiment of the present invention.

FIG. 7 is a side cross-sectional view showing a state where the mode setting button of the air purifying apparatus according to the embodiment of the present invention has not been pressed and the latch member is at the locking position.

FIG. 8 is a side cross-sectional view showing a state where a mode setting button of the air purifying apparatus according to the embodiment of the present invention is pressed and the latch member is at a release position.

FIG. 9 is a block diagram illustrating a schematic configuration of a control unit of the air purifying apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 air purifier 11 cabinet (housing) 14 front grille (housing) 16 intake port 28 filter (purification means) 38 sirocco fan (intake means) 43 motor (intake means) 48 louver storage section (storage section) 50 louver ( Airflow guide member) 58 Torsion coil spring (biasing member) 64 Mode setting button (operation member) 85 Latch member 106 Microcomputer (control means)

Claims (4)

[Claims] 1. An airflow guide mechanism for guiding an airflow to an intake port opened on an outer surface of a housing, the airflow guide mechanism being provided along a peripheral portion of the air intake port in the housing, and having a concave shape with respect to the outer surface of the housing. And a storage position stored in the storage portion, and an airflow guide member protruding from the storage position and movable to a guide position for guiding an airflow around the intake port to the intake port, respectively, A biasing member for biasing the airflow guide member to the guide position; and a locking position for locking the airflow guide member moved to the storage position and a release position for unlocking the airflow guide member. A latch member rotatably supported, and, when the airflow guide member locked by the latch member is moved to the guide position, the latch member is rotated from the lock position to the release position. Airflow guide mechanism, characterized in that it comprises a work member. 2. The latch member pivots from the locking position to the release position during the movement of the airflow guide member from the guide position to the storage position, and moves the airflow guide member to the storage position. 2. The airflow guide mechanism according to claim 1, wherein the airflow guide mechanism returns to the locking position when the airflow guide mechanism reaches the position. 3. The airflow guide mechanism according to claim 1, wherein: a suction unit that generates a negative pressure inside the housing to suction air from the suction port; and cleans the air drawn from the suction port. An air purification device comprising: 4. An interlocking operation of rotating the latch member from the lock position to the release position by the operation member, so that the amount of air taken in from the intake port becomes a predetermined amount. 4. The air purifying apparatus according to claim 3, further comprising control means for controlling the suction means.