JP2908891B2 - Air purifier with hot air function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling air flow of an air purifier having a hot air function.

2. Description of the Related Art As a conventional air purifier, there is an air purifier having a warm air function for heating air in addition to an air purifying function, and an air purifier which can be used well in winter. .

However, in the above-described air purifier with a hot air function (especially for home use), when the room temperature is relatively low, for example, in early spring or early autumn, a hot air outlet provided on the front surface is provided. When air that is not heated is blown out from the air, there is a problem that the wind hits the user and makes the user feel cold. Therefore, it is conceivable to provide the air outlet on the back side, but this will deteriorate the indoor heating effect of the hot air, and in the summertime, the hot air outlet on the front surface (of course, in this case, the air is not heated). It is more preferable to blow air out of the device. The present invention has been made in view of the above points, and its purpose is to switch a hot air blowing direction between a front surface and a rear surface according to a heating state of air when the temperature is low, An object of the present invention is to provide an air purifier with a hot air function capable of blowing air from the front in summer.

According to the present invention, in order to achieve the above object, air blowing means for blowing air sucked from an air inlet through a warm air outlet provided on a front surface, and purifying the sucked air. Cleaning means, heating means for heating the air blown out from the hot air outlet, air from the hot air outlet when the air is heated by the heating means, and air from the cold air outlet provided on the back surface when the air is not heated. And a blower control means for switching the air blowing direction so as to blow air from a hot air outlet provided on the front surface when the ambient temperature is equal to or higher than a predetermined temperature.

The present invention has the above-described structure,
When the air is not heated, the air is blown by the blowing control means to the side of the cold air outlet provided on the back side, and when the room temperature is relatively low, for example, in early spring or autumn, the air is not heated from the hot air outlet. Air is blown out, and it can be prevented that the wind hits the user and makes them feel cold. , So that it can perform almost the same function as a blower.

1 to 12 show an embodiment of the present invention. Book
The air purifier of the embodiment is a stationary type as shown in the front view of FIG.
The base 3 is provided at the bottom, and two upper and lower
Body with openings 5b and 5c for circulating air in place
3 (see FIG. 7), and as shown in FIG.
Attach the upper cover 1 to the upper front of the
Attach the lower cover 2 with the hot air outlet 2a formed at the bottom
The housing 6 is attached to the back of the body 5
Has become. The upper part of the housing 6 is shown in FIG.
The handle 6b is recessed as described above, and the handle 6b is used to clean the air.
The aircraft can be carried around. Top cover 1 of body 5
The opening 5b provided in the portion corresponding to
From the sea bear removal motor 15 and the sirocco fan 16
Attach the air blowing means
5 air suction ports 5a (see FIG. 6) formed on both sides
Inhale the air and send it down. Here, the air inlet 5
The back surface of the upper cover 1 serving as a flow path for the air sucked from a.
The fiber filter 10 and the deodorant filter 11
Clean means, and clean the fiber filter 10
The air is filtered, and the fiber filter is
The air passing through the filter 10 is deodorized. Temperature of lower cover 2
Opening 5c of body 5 formed corresponding to wind outlet 2a
In addition, the fixtures 12 and 13 serve as electric heating
Heater 14 is attached and sent from sirocco fan 16
The incoming air is heated by the electric heater 14 and placed on the front
Hot air outlet 2a through the punched net 18
And blow it out. To the hot air outlet 2a of the housing 6
Blow cold air into the corresponding lower part as shown in FIG.
A cool air outlet 6a is provided.
Blowing that switches the air blowing direction between the air heater 14
A damper A is provided as control means. Damper A is
As shown in FIG. 11, the air circulation direction is changed by the electric heater 14.
Blower control plate 4 for switching between the side and the cool air outlet 6a side;
The heating wire 17 is wound in close contact with the heating wire 17 to turn the power in one direction.
Shape memory alloy spring 8 applied to blower control plate 4 and its shape
Blow control plate for turning force in the direction opposite to shape memory alloy spring 8
4 is provided with a spring 9. Ventilation control plate 4
Is formed by bending a flat plate into a U-shaped cross section.
An electric heater 14 is attached to the projected rotating shaft 4a.
Protruding from the back of both side pieces of the rectangular frame-shaped mounting fixture 13 on the back side
It is rotatably supported by a pair of mounting pieces 13a.
The shape memory alloy spring 8 is made of Ti-Ni alloy or the like.
Insulated terminals 8a are attached to both ends as shown in FIG.
You. Here, both ends of the shape memory alloy spring 8 are insulated terminals 8a.
To the insulating terminal 8a through the round holes 8b formed at
Adhesively fixed. The formed memory alloy spring 8
Heating wire (kanthal wire) 17
The shape memory alloy spring 8 is heated, and the shape is
The shape memory alloy spring 8 is contracted and extended. Note that, in this embodiment,
When heated, the shape memory alloy spring 8 contracts to the shape memory state
It is supposed to. The heating wire 17 is connected to this heating wire 17
Both ends are round crimp terminals 19 together with the lead wires 18 for conducting electricity.
It is fixed by caulking. Insulated terminal at one end of this spring 8
8a shows the blow control plate 4 together with the round crimp terminal 19 in FIG.
A pair of fixing pieces 4b protruding from one side of the lower surface of
The other end of the insulation terminal 8a is rotatably fixed between
Along with the crimp terminal 19, one of the mounting pieces 13a
It is rotatably fixed to a fixing piece 13b protruding from one end side.
is there. The spring 9 is a normal coil spring and is shaped by heating.
When the shape memory alloy spring 8 contracts,
The spring force becomes weak and the shape memory alloy spring 8 is not heated
Has a spring property to increase the spring force.
What is the bent surface of the blower control plate 4 on which the fixing pieces 4b are formed?
On the opposite bent surface of the lower surface and on the side opposite to the fixing piece 4b
Hook part 4c formed in the part, and the other attachment of the attachment 13
Between the hook 13c projecting from the other end of the piece 13a.
It is attached by hooking the end. In other words, the above Dan
In the case of par A, the shape memory
By controlling the gold spring 8 to a heating state or a non-heating state,
The figure changes the balance of the spring force of each spring 8, 9
8, the air flow control plate 4 is rotated as shown in FIG.
That is, the air blowing direction is switched more. Empty of this embodiment
Air purifiers automatically operate when a person enters a room.
Automatic operation that starts and stops operation automatically when you leave the room
It is equipped with a turning function.
2 or a human body detection sensor 7 is provided as shown in FIG.
It is. The human body detection sensor 7 is an ultrasonic type
Alternatively, any type such as a hot wire type may be used.
No. Here, the automatic operation mode set to this automatic operation mode
Switch_TwoAre arranged on the upper surface of the body 5 as shown in FIG.
This automatic operation switch SW_TwoOther than
Power ON / OFF switch SW₁, Continuous operation switch SW _Three,temperature
Temperature setting switch SW that sets up and down of 5 steps_Four, S
W_FiveAnd heating switch SW₆Is provided. In addition,
Dynamic operation switch SW_Two, Continuous operation switch SW_Three,heating
OFF switch SW₆Display run to display the operation status
L₁, L_Two, L₈And a temperature setting switch
Switch_Four, SW_FiveDisplays the setting status in 5 levels
Lamp L_Three~ L₇Is provided. Note that the temperature setting
Switch_Four, SW_FiveTo keep the room temperature at the set temperature
In the air purifier of the present embodiment, a temperature sensor for detecting the indoor temperature is used.
A thermistor 20 as a sensor is provided. This Sami
The star 20 is disposed in the housing 6 and detects the room temperature.
In the place where the thermistor 20 of the housing 6 is located,
An air inlet 6c is formed (FIG. 5). Empty of this embodiment
FIG. 1 shows the internal circuit of the air purifier. Internal circuit of this embodiment
Is roughly divided into a mode setting unit 21 for setting an operation mode.
And a temperature setting unit 22 for setting a room temperature and a motor 15
The operation of the motor drive control unit 23 for driving and the operation of the electric heater 14
Temperature to control the operation and adjust the room temperature to the set temperature
Adjustment section 24 and heating-off setting section 25 for setting the heating-off state
Consists of The mode setting unit 21 includes a power ON / OFF switch S
W₁, Automatic operation switch SW_TwoAnd continuous operation switch S
W_ThreeThe operation of each of the above parts is changed to the automatic operation mode according to the operation of
The mode is switched to the continuous operation mode. Temperature setting section
22 is a temperature setting switch SW_Four, SW_FiveBy the operation of
Although the set temperature can be set stepwise, automatic operation
When switching to the mode, always in the middle temperature state (3rd stage middle
(Switching state). motor
The drive control unit 23 is provided when the automatic driving mode is set.
In the case, the presence of a human body is detected indoors by the human body detection sensor 7
The motor 15 is driven when it is released, and it is constant when leaving the room.
After a time, the driving of the motor 15 is automatically stopped.
You. In the continuous operation mode, the motor 15 is driven continuously.
Be moved. The temperature adjustment unit 24 is detected by the thermistor 20.
The known room temperature is compared with the set temperature set by the temperature setting unit 22.
The heater controls the heating of the electric heater 14 so that
Near the constant temperature, the main heater H of the electric heater 14 is provided.₁Is
If the room temperature is much lower than the set temperature,
Auxiliary heater H_TwoFunction to quickly set the temperature by heating
Have. Hereinafter, the operation of the internal circuit will be described. Ma
Power switch ON / OFF₁And flip flip
Ropp FF₁Output Q of₁Becomes "H", and
Lip flop FF_ThreeIs in the reset state.
Log switch AS₁Through flip-flop FF_TwoBut
It is set, and it becomes the automatic operation mode. On this occasion
Has a flip-flop FF_TwoDisplay for automatic operation with output
Lamp L₁Lights up. In addition, power on / off switch SW₁
Is input, AND gate AND₁Both inputs are
Is set to "H", and the temperature is set with the "H" output at this time.
The unit 22 is initialized. In other words, this AND gate A
ND₁Output of flip-flop FF _Four~ FF₆But
Each is set and initialized to a medium temperature state. At this time
Is each flip-flop FF_Four~ FF₆Temperature display with output
Display lamp L_Three~ L_FiveLights up. Like this
Flip-flop FF_Four~ FF₆Becomes "H",
Flip-flop FF_Four~ FF₈Ana provided after
Log switch AS_Three~ AS_Ten, AND gate AND₁₂~
AND_FifteenAnd inverter gate I₁~ I_FourSwitching consisting of
Flip-flop FF by circuit 26₆Only the output of
Anti-voltage divider 27₁, 27_TwoIs applied to the
Resistor voltage dividing circuit 27₁, 27_TwoThe reference voltage determined by
Is the reference voltage for setting the medium temperature,
Data CP₁, CP_TwoGiven to. Here, set temperature
Switch SW if you want to raise_FourYou just need to press
In the initial setting state, switch SW once_FourPress
And flip-flop FF₆Output is "H"
So, AND gate AND₇Output is switch SW_Four
Becomes "H" when is pressed.
FF₇Is set, and the set temperature rises by one step. Likewise
And press it again to raise the set temperature again
it can. Conversely, if you want to lower the set temperature,
SW_FivePress once, and once in the above-mentioned medium temperature setting state,
Switch_FiveIs pressed, the AND gate AND₆
Becomes "H" and the flip-flop FF₆Nise
And the set temperature decreases by one step. Sui in the same way
Switch_FiveEach time is pressed, the set temperature is reduced by one step
Can be. However, flip to set the minimum temperature setting state
Flop FF_FourOnly make it impossible to reset
The reset of the minimum temperature setting state will be described later.
It is performed only when the state is. In this state of automatic operation mode
The presence of a human body in the room with the human body detection sensor 7
Is detected, an AND game of the motor drive control unit 23 is performed.
To AND_TenBecomes "H" and the timer T_Two(example
(The time limit is set to 10 minutes, for example.)
Start and the timer T at this time_TwoPhoto triac at output
PT₁To drive the motor 15. Note that this mode
The driving state of the motor 15 is the timer T after the person leaves the room._TwoLimit
The operation is continued until after the elapse of the operation time. As described above,
When the heater 15 is driven, the thermistor 20
The detected temperature is compared with the comparator CP of the temperature adjusting unit 24.₁so
If the room temperature is lower than the set temperature,
TACP₁Becomes "H" and the timer T₁(For example,
(The time limit has been set to 1 minute.)
You. Thereby, the photo coupler PC₁Conducts and relays
Ry₁Is driven and the contact r₁Is closed by the Lord
Data H₁Electricity is supplied to the electric heater 14 to heat the air.
To start. Note that, as described above, the timer T₁Timed operation
Starts, OR gate OR₁Output through the photo
Coupler PC_ThreeAnd the heating wire 17 is also energized,
As a result, the shape memory alloy spring 8 contracts, and the damper A moves as shown in FIG.
And the sirocco fan 16
Air is sent to the electric heater 14. Also, as mentioned above
And comparator CP₁With the output of "H"
Is the comparator CP_TwoAlso detected by the thermistor 20
Is input to the comparator CP_TwoReference voltage (this
Comparator CP_TwoThe reference voltage of the comparator CP₁
Room temperature is lower than the reference voltage)
In the case, AND gate AND₁₆Output becomes "H"
And the photo coupler PC_TwoBecomes conductive and relay R
y_TwoThe auxiliary heater of the electric heater 14 is driven by
Data H_TwoWill be heated and the temperature will rise rapidly to the set temperature
The electric heater 14 is operated as described above. Note that this auxiliary
TA H_TwoHeating of room temperature is comparator CP_TwoTo the reference voltage
Stopped when reached. And when it reaches the set temperature,
Comparator CP_TwoBecomes "L" and the timer T₁
Main heater H after the time limit operation time of₁Heating is also stopped
The main heater H₁Heating and non-heating
Repeat the condition to keep the room temperature at a constant value according to the set temperature.
One. Next, the case of continuous operation will be described. Continuous
If you want to run, continuous operation switch SW_Threepush.
However, each switch SW_Two~ SW₆Is an analog switch
Switch AS_TwoPower on / off switch by connecting
Switch₁Is not turned on, each switch SW_Two~
SW₆Does not work. Continuous operation as described above
Switch SW_ThreeIs pressed, flip-flop FF
_ThreeIs set, and the output of the flip-flop FF_TwoTo
Perform a reset, release the automatic operation mode, and
And flip-flop FF_ThreeOperation with output Q of
Display lamp L_TwoLights up. This continuous operation mode
Then, flip-flop FF _ThreeMotor 15 with the output of
Drive. The operation of the electric heater 14 is controlled by ANDGE.
Auto AND₁₁And timer T₁And comparator CP₁Output
And by taking the AND, that is, the air purifier
Is operated, and when the room temperature is lower than a predetermined temperature, the main heater
H₁Is controlled. The auxiliary heater H_TwoIs automatic luck
The operation is controlled as in the case of the reverse mode. By the way, on
Heating by automatic operation mode or continuous operation mode described above
If you want to turn off the state, turn off the heating switch SW₆Press
I should do it. This heating switch SW ₆Is pressed,
Lip flop FF₉Is set, and the display
Lump₈Lights up and the analog switch AS₁₃But
Turned off and relay Ry₁, Ry_TwoPower supply to the
Cut off, heater H₁, H_TwoPower supply to the air is stopped
Heating stops. Also, the flip-flop F at this time
F₉Output of flip-flop FF_Four~ FF₈To
Set the temperature and set the temperature setting state in the temperature setting
To release. However, in this state, the air purifying function is not
Will be maintained. When releasing this heating off state
Is the temperature setting switch SW_Four, SW_FivePress any of
And AND gate AND_TwoBecomes "H", and
Flip-flop FF₆Is reset and the power on / off switch is
Switch₁Temperature setting unit 2 in the same manner as when
In 2, the medium temperature state, which is the initial set temperature, is set.
As described above, the heater H₁Drive damper A with heating
Then, at the time of non-heating of the air, the cold air outlet 6a on the rear side
Air can be drawn out, for example, early spring or early autumn
When the room temperature is relatively low, heat from the hot air outlet side
Air that has not been drawn
It can prevent the human body from feeling cold. Place
In the above case, if the air is not heated,
The exit direction was on the cold air outlet 6a side, but like in summer
When the temperature is high, air is blown from the front warm air outlet 2a.
It is preferable to start out. Therefore, in this embodiment, the thermistor
20 to a predetermined temperature (for example, 27 ° C.).
Comparator CP comparing with corresponding reference value_Three, And on
When the temperature exceeds the set temperature, the heating wire 17 is energized.
Therefore, even in the summer, the air can be discharged from the hot air outlet 2a.
Can be blown out. This way, the air
The purifier can act as a blower. Place
In the case of the above embodiment, whether or not the air is heated is determined.
Change the air blowing direction more and if the room temperature is relatively low
To prevent the wind blown out from hitting people
FIG. 13 shows a method different from the above case.
A method may be used. In the case of FIG.
AND gate AND₁₁Set at the output of
Gate AND₁₆Flip flow reset by the output of
FF_TenAnd the flip-flop FF_TenOutput
Photocoupler PC that conducts when Q is at high level
_FourAnd a photocoupler P that conducts when it is at a low level
C_FiveAnd a photocoupler PC_FourDrives when is conducting
Relay Ry_ThreeContact point r_ThreeIs the resistance R₁Through moo
To the photocoupler PC_FiveBecame conductive
The relay Ry that is driven when_FourContact point r_FourIs the resistance R₁
And contact point r_ThreeAre connected to both ends of the series circuit. This figure 1
In the case of 3, the room temperature detected by the thermistor 20 is
Parator CP _TwoIf the temperature is lower than the predetermined temperature set in
AND gate AND₁₁Output goes to high level
More flip-flop FF_TenIs set, and
Photocoupler PC_FourIs turned on and the relay Ry_ThreeIs driven
You. At this time, the resistance R₁Are connected in series
As a result, the motor 15 rotates at a low speed, and the amount of air blown is small.
Controlled. Therefore, when the blown air is cold
Also reduce the possibility that the wind will hit the people
Yes, you don't have to feel cold if you hit it. So
And the room temperature is the comparator CP_TwoReached the temperature determined by
If flip-flop FF_TenIs reset and this
More photo coupler PC_FiveBecomes conductive and the relay Ry_FourDrives
Then, the power supply voltage is applied to the motor 15 as it is. Obedience
Therefore, the rotation speed of the motor 15 increases, and the blowing amount of the warm air is reduced.
You can do much. In this case, air is heated to some extent
It is in a state where people are cold even if the blowing volume is increased
I do not feel. FIG. 14 shows that when the room temperature is relatively low,
To prevent the blown wind from hitting people
In the case of this embodiment, the heater H₁Addition
Photocoupler PC for thermal control₁Through the heating wire 17
Control to the heating wire 17 according to the room temperature.
By changing the amount of electricity, if the room temperature is low, use damper A
The amount of air blown out from the hot air outlet 2a is reduced.
is there. For this reason, in this embodiment, the photocoupler PC₁To
Ray Ry₁And a resistor R connected in series_TwoAnd both ends
Analog switches AS inserted between the heating wires 17 respectively
₁₄, AS_FifteenON and OFF of AND gate AND₁₆Output
When the room temperature is low, the heating wire 17 is energized.
The amount of rotation of the damper A when the room temperature is low.
Emission of air blown out from hot air outlet 2a
Reduce the amount. And the room temperature is the comparator CP_Twoso
At the determined temperature, the amount of electricity to the heating wire 17 is increased.
To completely rotate the damper A, and thereby the hot air outlet
Blow all air out of 2a. Like this
Is the same as when the rotation speed of the motor 15 is changed as described above.
The same effects can be obtained. 13 and FIG.
Air in the hot air outlet 2a in the summer
Circuit is not shown, but this circuit is provided in each circuit.
It is possible. Also, in the above case, two stages are possible.
Although the case of changing is shown, it is needless to say that it may be set three times or more.
Needless to say,

As described above, according to the present invention, there are provided a blowing means for blowing air sucked from an air inlet through a hot air outlet provided on a front surface, a purifying means for purifying the sucked air, and a hot air outlet. Heating means for heating the air to be blown, and, when the air is heated by the heating means, the air is blown out of the hot air outlet, and when the air is not heated, the air is blown out of the cold air outlet provided on the back surface, and the ambient temperature is reduced. Air blowing control means for switching the air blowing direction so that air is blown out from the hot air blowing outlet provided on the front surface when the temperature is equal to or higher than a predetermined temperature. Side, it can be a cold air outlet side, so that when the room temperature is relatively low such as in early spring or autumn, unheated air is blown out from the hot air outlet. , It can prevent that the wind hits the user and make them feel cold, and when the temperature is high such as summertime, the air blown out from the front and blown to the user positively, There is an advantage that the same function as the blower can be performed.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of one embodiment of the present invention.

FIG. 2 is a front view of the air purifier.

FIG. 3 is a side view of the same.

FIG. 4 is a top view of the same.

FIG. 5 is a rear view of the same.

FIG. 6 is a side view in which a part of the above is cut away.

FIG. 7 is a sectional view of the above.

FIG. 8 is a sectional view showing a state in which the damper is operated to blow air from a cool air outlet.

FIG. 9 is a cross-sectional view showing a state where the damper is operated to blow air from a hot air outlet.

FIG. 10 is an explanatory view showing a structure of a shape memory alloy spring.

FIG. 11 is a perspective view showing a damper.

FIG. 12 is a partial sectional view showing a structure of a human body sensor unit.

FIG. 13 is a circuit diagram of another embodiment.

FIG. 14 is a circuit diagram of still another embodiment.

[Explanation of symbols]

 A Damper 2a Hot air outlet 5a Air inlet 6a Cold air outlet 10 Fiber filter 14 Electric heater 16 Sirocco fan

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-204562 (JP, A) JP-A-3-140753 (JP, A) JP-A-60-63742 (JP, U) JP-A-60-63 64149 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F24H 3/04 305 F24H 9/02 302

Claims (1)

(57) [Claims] 1. A blowing means for blowing air drawn in from an air suction port through a warm air outlet provided on a front surface thereof, a purifying means for purifying the sucked air, and a heating means for heating the air blown out from the warm air blowing port. Means, while heating the air by the heating means, to blow air from the hot air outlet, and when not heating the air, to blow air from the cold air outlet provided on the back, and to the front when the ambient temperature is equal to or higher than a predetermined temperature. An air purifier with a hot air function, comprising: a blower control means for switching an air blowing direction so as to blow air from a provided hot air outlet.