JP2582014Y2 - air purifier - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention relates to an air purifier,
More specifically, the present invention relates to an air purifier capable of adding fragrance to purified air in a room.

[0002]

2. Description of the Related Art Conventional air purifiers include, for example, those shown in FIGS.

FIG. 3 is a cross-sectional view showing the structure of the air purifier.
1 is further disposed, and further behind it is formed an electric dust collecting section 52. Further, a deodorizing section 53 is provided behind the electrical dust collecting section 52.
Is configured. A blower fan 55 is arranged between the deodorizing section 53 and the air outlet 54. Air outlet 5
4, an aroma generating section 56 is configured in parallel with the blower fan 55.

The fragrance generating section 56 includes a container 58 filled with a fragrance 57, a cap 59 for sealing the mouth of the container 58,
The cap 59 is constituted by a solenoid 61 having a plunger 60 fixed to the tip.

The control circuit 62 is fixed on the case bottom 63 of the air purifier. The control circuit 62 controls the electric dust collector 52, the blower fan 55, and the solenoid 61 based on the output of the smoke sensor 51 and a signal input by an operation switch 64 provided on the upper surface of the air purifier case.

FIG. 4 is an electric circuit diagram of the air purifier,
The operation switch unit 64 includes a low speed switch 64a, a high speed switch 64b, and an automatic operation switch 64c for selecting an operation of the air purifier.

The signal processing section 71 outputs an automatic operation request signal AS input from the automatic operation switch 64c of the operation switch section 64 to the automatic operation section 72. The signal processing unit 71 also includes a low-speed operation request signal LS or a high-speed operation request signal HS input from each of the low-speed switch 64a and the high-speed switch 64b of the operation switch unit 64, and a motor low-speed rotation request signal output from the automatic operation unit 72. It outputs FL or a motor high-speed rotation request signal FH to the motor drive unit 73. Further, a fragrance addition request signal for operating the fragrance generation unit 56 is output to the solenoid 61 of the fragrance generation unit 56. The fragrance addition request signal is configured to be output for a predetermined time by the timer 71a.

The automatic operation unit 72 includes an automatic operation switch 64
c, the smoke density in the vehicle is detected by the smoke sensor 51, and when the smoke density reaches a predetermined level, the motor high-speed rotation request signal FH or the motor low-speed rotation request signal HL. Is output.

The motor drive unit 73 includes an operation switch unit 64
Based on the low-speed operation request signal LS or high-speed operation request signal HS input from the CPU or the low-speed motor rotation request signal FL or high-speed motor rotation request signal FH output from the automatic operation unit 72. Alternatively, it is driven at a high speed.

In the fragrance generating section 56, when the fragrance addition request signal is sent, the solenoid 61 is excited, the plunger 60 is sucked into the solenoid 61, and the cap 59 is removed from the mouth of the container 58.

Next, the operation will be described.

When the low-speed drive request signal LS is input by the low-speed switch 64a, the low-speed drive request signal LS is
It is supplied to the motor drive unit 73 and the timer unit 71a. As a result, the motor drive unit 73 rotates the fan motor of the blower fan 55 at a low speed, while the timer unit 71a excites the solenoid 61 of the fragrance generation unit 56 for a predetermined time, removes the cap 59 from the mouth of the container 58, Generates fragrance.

When the high-speed operation request signal HS is input by the high-speed switch 64b, the high-speed operation request signal H
S is supplied to the motor drive unit 73 and the timer unit 71a.
As a result, the motor driving unit 73 rotates the fan motor of the blower fan 55 at high speed, while the timer unit 71a excites the solenoid 61 of the fragrance generating unit 56 for a predetermined time, removes the cap 59 from the mouth of the container 58, Generates fragrance.

When the automatic operation request signal AS is inputted by the automatic operation switch 64c, the automatic operation request signal AS
Is supplied to the automatic driving unit 72, and the automatic driving unit 72 detects the smoke density in the vehicle based on the automatic driving request signal AS,
Is detected by If the result of detecting the smoke density is equal to or less than the first predetermined value (the smoke density is close to zero), the automatic driving unit 7
2 outputs neither the motor low-speed rotation request signal FL nor the motor high-speed rotation request signal FH.

On the other hand, if the result of detecting the smoke density is equal to or higher than the first predetermined value and equal to or lower than the second predetermined value (the smoke density is medium), the automatic operation section 72 outputs the motor low speed rotation request signal. Output FL. As a result, the motor driving unit 73
The fan motor of the blower fan 55 is rotated at a low speed, while the timer section 72a excites the solenoid 61 of the fragrance generating section 56 for a predetermined time, removes the cap 59 from the mouth of the container 58, and generates fragrance.

If the result of detecting the smoke density is equal to or higher than the second predetermined value (the smoke density is high), the automatic operation section 72 outputs a motor high-speed rotation request signal FH. As a result, the motor drive unit 73 rotates the fan motor of the blower fan 55 at a high speed, while the timer unit 71a operates the fragrance generation unit 56.
Is excited for a predetermined time, and the cap 59 is removed from the mouth of the container 58 to generate fragrance.

[0017]

However, such a conventional air purifier has a configuration in which the fragrance is generated by the fragrance generating unit when the air is being cleaned by automatic operation. However, there is a problem that the fragrance released into the air is deodorized by the deodorizing section 53 of the air purifier, thereby deteriorating the fragrance function and deteriorating the deodorant quickly.

The present invention has been made in view of such a conventional problem. After filtering dirty air by automatic operation, after purifying the air, the fragrance is released into the air. With such a configuration, the object is to solve the above problem.

[0019]

An air purifier according to the present invention detects smoke density in a vehicle cabin by a smoke sensor, and detects the smoke density.
When the air temperature is above a specified value, air is taken in the cabin and dust is collected.
In an air purifier that performs deodorizing clean operation,
A fragrance generator that generates fragrance is provided, and the smoke sensor
It is detected that the smoke density in the cabin is below the specified value.
When the clean operation is stopped,
A control circuit for generating fragrance for a predetermined time from the fragrance generating unit
It is provided. Also, the air purifier according to the present invention.
The above control circuit is for air blowing to take in the air inside the vehicle
A motor drive unit for driving the fan;
The moving section is configured such that when the fragrance is generated from the fragrance generating section for a predetermined time,
To drive the air blowing fan in synchronization with
You.

[0020]

[Function] The air purifier of the present invention has a fragrance in the cabin.
A fragrance generating section that generates
It has been detected that the smoke density in the cabin is below the specified value
At the same time, the cleaning operation is stopped and the
A control circuit is provided to generate fragrance from the scent generator for a predetermined time.
As a result, the generation of fragrance is reduced when the dust collection and deodorization operation is stopped.
By doing so, deterioration of the fragrance function can be prevented. Ma
In addition, fragrance is not generated during dust collection and deodorization operation.
The deterioration of the deodorant due to the above can be prevented. Also, this idea
Air purifier, the control circuit takes in the vehicle interior air
A motor drive unit for driving the air blowing fan; and
The motor drive unit is configured to allow the fragrance from the fragrance generation unit to emit
When this occurs, the air blower fan is driven synchronously.
That can effectively diffuse fragrance in the cabin.
It is.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a sectional view showing the structure of an embodiment of the air purifier of the present invention. The same or corresponding parts as those in FIG. In the figure, a control circuit 1
Is fixed on the case bottom 63 of the air purifier.
The control circuit 1 controls the electric dust collector 52, the blower fan 55, and the solenoid 61 based on the output of the smoke sensor 51 and a signal input by an operation switch 64 provided on the upper surface of the case of the air purifier. .

FIG. 2 is an electric circuit diagram of this embodiment.
The same or corresponding parts as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. In the figure, a control circuit 1 includes an automatic driving unit 72.
And a signal processing unit 3 and a motor driving unit 73.

The signal processing unit 3 includes a first OR circuit 3a, a second
The circuit includes an OR circuit 3b, a third OR circuit 3c, a NOR circuit 3d, an AND circuit 3e, a fourth OR circuit 3f, and a timer unit 3g. Each of these circuits has two input terminals.

The first OR circuit 3a receives a low-speed operation request signal L
The logical sum of S and the motor low-speed rotation request signal FL is calculated, and the calculation result is output. The second OR circuit 3b performs a logical OR operation of the high-speed operation request signal HS and the motor high-speed rotation request signal FH, and outputs the operation result.

The third OR circuit 3c outputs a low-speed operation request signal L
The logical sum of S and the high-speed operation request signal HS is calculated, and the calculation result is output. The NOR circuit 3d outputs a signal on the condition that neither the motor high-speed rotation request signal FH nor the motor low-speed rotation request signal FL is output. The AND circuit 3e performs an AND operation of the output of the NOR circuit 3d and the automatic operation request signal AS, and outputs the operation result. That is, the AND circuit 3e is in a state where neither the motor high-speed rotation request signal FH nor the motor low-speed rotation request signal FL is output, and the automatic operation request signal A
A signal is output on condition that S is output.

The fourth OR circuit 3f is connected to the third OR circuit 3f.
The logical sum of c and the output signal of the AND circuit 3e is calculated, and the calculation result is output as a trigger signal. Timer section 3g
A preset time (3 minutes in this case) is set in advance, and is activated by the input trigger signal, and outputs the fragrance generation section activation signal TH and the fragrance generation motor activation signal TM having a time width of 3 minutes.

Next, the operation will be described.

When a low-speed drive request signal is input by the low-speed switch 64a, the low-speed drive request signal is supplied to the motor drive unit 73 and the timer unit 3g. Timer section 3g
Outputs the fragrance generation motor operation signal TM having a time width of 3 minutes, and the motor drive unit 73 rotates the fan motor of the blower fan 55 at low speed based on the simultaneously supplied low speed operation request signal LS. Further, the timer unit 3g and the fragrance generation unit activation signal TH having a time width of 3 minutes are output, and the solenoid 61 of the fragrance generation unit 56 is excited by this signal for 3 minutes.
During this time, the cap 59 is removed from the mouth of the container 58 to generate fragrance.

When the high-speed operation request signal HS is input by the high-speed switch 64b, the high-speed operation request signal H
S is supplied to the motor drive unit 73 and the timer unit 3g. The timer unit 3g outputs the fragrance generation motor operation signal TM having a time width of 3 minutes, and the motor drive unit 73 rotates the fan motor of the blower fan 55 at high speed based on the simultaneously supplied high-speed operation request signal HS. Let it. In addition, the timer unit 3g
Outputs the fragrance generating section activation signal TH having a time width of 3 minutes, and the solenoid 61 of the fragrance generating section 56 is excited by this signal for 3 minutes, during which the cap 59 is removed from the mouth of the container 58 to generate fragrance.

When the automatic operation request signal AS is input by the automatic operation switch 64c, the automatic operation request signal is supplied to the automatic operation unit 72, and the automatic operation unit 72 generates the smoke in the vehicle based on the automatic operation request signal AS. The density is detected by the smoke sensor 51.

-When the smoke density is low-If the result of detection of the smoke density is equal to or less than the first predetermined value (the smoke density is close to zero and the air is purified),
Neither the motor low-speed rotation request signal FL nor the motor high-speed rotation request signal FH is output from the automatic operation unit 72. As a result, the condition that neither the motor high-speed rotation request signal FH nor the motor low-speed rotation request signal FL is output and the automatic operation request signal AS is output is satisfied, and the AND circuit 3e sets the fourth OR. A signal is output to the circuit 3f, and a trigger signal based on the signal is output to the fourth OR circuit 3f.
f to the timer unit 3g, and the timer unit 3g is started.

The timer unit 3g outputs a fragrance generation motor operation signal TM having a time width of three minutes, and the motor drive unit 73 rotates the fan motor of the blower fan 55 for three minutes based on the fragrance generation motor operation signal TM. Let it. In addition, the timer unit 3g
Outputs the fragrance generating section activation signal TH having a time width of 3 minutes, and the solenoid 61 of the fragrance generating section 56 is excited by this signal for 3 minutes, during which the cap 59 is removed from the mouth of the container 58 to generate fragrance.

-When the smoke density is medium-If the result of detection of the smoke density is equal to or more than the first predetermined value and equal to or less than the second predetermined value (medium), the automatic operation unit 72 outputs a motor low-speed rotation request signal FL.
Based on the motor low-speed rotation request signal FL, the motor driving unit 7
3 rotates the fan motor of the blower fan 55 at a low speed. In this case, since the condition that neither the motor high-speed rotation request signal FH nor the motor low-speed rotation request signal FL is output and the automatic operation request signal AS is output is not satisfied, the AND circuit 3e outputs No signal is output, the timer circuit 3g is not activated, and no fragrance is generated.

On the other hand, since the blowing fan 55 is rotating, when the air purification proceeds and the smoke density becomes almost zero, the automatic operation unit 72 turns off the motor low-speed rotation request signal FL and stops the blowing fan 55. . As a result, the above condition is satisfied at this time, a signal is output from the AND circuit 3e, the timer circuit 3g is started, and the blower fan 55 and the fragrance generating section 56 operate for 3 minutes.
Aroma is generated.

-If the smoke density is high- If the result of the smoke density detection is equal to or higher than the second predetermined value, the automatic operation unit 72 outputs a motor high-speed rotation request signal FH. As a result, the motor drive unit 73 rotates the fan motor of the blower fan 55 at a high speed. In this case, the motor high-speed rotation request signal FH and the motor low-speed rotation request signal F
L, and the condition that the automatic operation request signal AS is output is not satisfied. Therefore, no signal is output from the AND circuit 3e, and the timer circuit 3g is not started. No fragrance is generated.

On the other hand, since the blower fan 55 is rotating at a high speed, when the air purification proceeds and the smoke density becomes almost zero, the automatic operation unit 72 turns off the motor high-speed rotation request signal FH, and the blower fan 55 stops. I do. As a result, the above condition is satisfied at this time, a signal is output from the AND circuit 3e, the timer circuit 3g is started, and the blower fan 55 and the fragrance generator 56 are operated for 3 minutes.
Aroma will be generated.

[0037]

[Effects of the Invention] As described above, according to the present invention, fragrance is generated only when the dust collection and deodorization operation is stopped.
With such a configuration, deterioration of the fragrance function can be prevented. Ma
In addition, fragrance is not generated during dust collection and deodorization operation.
Has the effect of preventing the deodorant from deteriorating. Also,
According to the inventor of the present invention, a fan for air blowing is used during the generation of the fragrance.
The mechanism is designed to rotate the
There is an effect that the incense can be diffused more effectively.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the structure of an embodiment of the air purifier of the present invention.

FIG. 2 is an electric circuit diagram of an embodiment of the air purifier of the present invention.

FIG. 3 is a cross-sectional view showing the structure of a conventional air purifier.

FIG. 4 is an electric circuit diagram of a conventional air purifier.

[Explanation of symbols]

 3 signal processing unit (fragrance generation unit control means) 51 smoke sensor 56 fragrance generation unit 55 blower fan

Claims (2)

(57) [Scope of request for utility model registration] 1. A smoke sensor for detecting a smoke concentration in a vehicle compartment.
When the smoke density is higher than a predetermined value,
Air purifier that performs cleaning operation to collect and deodorize dust
A fragrance generator that generates fragrance in the passenger compartment
The smoke concentration in the cabin is below the specified value by the smoke sensor
Is stopped, the clean operation is stopped.
And a fragrance is generated from the fragrance generating section for a predetermined time.
An air purifier comprising a control circuit . 2. The control circuit according to claim 1, wherein the control circuit takes in air in the vehicle interior.
A motor drive unit for driving the air blowing fan; and
The motor driving unit is configured to allow the fragrance from the fragrance generating unit to emit fragrance for a predetermined time.
When this occurs, the air blower fan is driven synchronously.
The air purifier according to claim 1, wherein: