JPH1085314A - Fragrance generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To diffuse a perfume in the environmental air by completely gasifying the perfume sprayed by an ultrasonic oscillator installed in a fragrance generator. SOLUTION: In the fragrance generator, a blower 8 is mounted at the upstream end of a cylindrical main body 1, an ultrasonic oscillator 9 and a honeycomb duct 6 are mounted so that either one may be positioned at the upstream and the other one at the down stream and a nozzle 13 for supplying a liquid perfume 18 is installed so that the top end of the nozzle 13 is close to the oscillating plane 12 of the ultrasonic oscillator 9. A heater 20 is installed outside of the main body 1 and also in the vicinity of the honeycomb duct 6. The main body 1 and the honeycomb duct 6 are made of a material having a high heat conductivity and the outer periphery of the honeycomb duct 6 and the inside of the main body 1 are closely adhered so that the heat generated from the heater 20 may be conducted efficiently to the honeycomb duct 6 through the main body 1. A perfume sprayed at the oscillating plane 12 of the ultrasonic oscillator 9 is gasified in the main body and then blown out from the blowout port 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fragrance device for atomizing liquid fragrance on the vibrating surface of an ultrasonic vibrator, further vaporizing the fragrance, and sending the fragrance.

[0002]

2. Description of the Related Art There is known a fragrance generating apparatus in which an ultrasonic vibrator is arranged near an outlet of a case and a blower is arranged beside the ultrasonic vibrator (see, for example, Japanese Patent Application Laid-Open No. Hei 5 (1993) -107). -184991). In this fragrance device,
The tip of the nozzle is arranged close to the vibration surface of the horn tip of the ultrasonic vibrator, and the liquid fragrance (solution containing fragrance) is supplied to the vibration surface of the horn tip through a pipe and nozzle by a pump. Have been. When the fragrance device is operated, the vibration surface at the tip of the horn vibrates due to the operation of the ultrasonic vibrator, and the liquid fragrance supplied to the vibration surface is atomized by the vibration. At this time, the atomized fragrance is sent out from the outlet by the air flow blown from the blower.

[0003] The atomized fragrance delivered by the conventional fragrance device floats in the air in the state of innumerable fine water droplets immediately after delivery, but most of the fragrance is thereafter indoors, in a hall or in a car. It is vaporized and vaporized in the atmosphere. And
Since it is the vapor (gas) of the fragrance that affects the human sense of smell, it is desired to change the fragrance from the state of water droplets to the state of vapor as soon as possible. However, when the conventional fragrance device is used, when the temperature of the atmosphere is low, vaporization of the fragrance is delayed, and fine water droplets of the fragrance drop on the floor near the outlet or adhere to an object near the outlet, Insufficient diffusion of perfume into the atmosphere.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fragrance apparatus using an ultrasonic vibrator in which a fragrance is completely vaporized and the fragrance is diffused into the atmosphere. And

[0005]

According to the present invention, in a fragrance device, a blower (8) is disposed at an upstream end in a cylindrical main body (1), and then an ultrasonic vibrator (9) and a honeycomb are provided. Duct (6)
Are arranged so that one is located on the upstream side and the other is located on the downstream side, and the tip of the nozzle (13) for supplying the liquid flavor is close to the vibration surface (12) of the ultrasonic vibrator (9). Placed and the body
A heater (20) is disposed on the outer surface of (1) near the honeycomb-shaped duct (6), and the main body (1) and the honeycomb-shaped duct (6) are formed of a material having high thermal conductivity. At the same time, the outer periphery of the honeycomb duct (6) and the inner surface of the main body (1) are in close contact with each other so that the heat generated by the heater (20) is efficiently conducted to the honeycomb duct (6) via the main body. And
Spray atomized on the vibrating surface (12) of the ultrasonic vibrator (9)
The first configuration is that it is vaporized in (1) and sent out from the outlet (4). According to the present invention, in the first configuration, the first temperature detecting means (21) for detecting the temperature of the delivered air is disposed downstream of the honeycomb duct (6), and the ultrasonic vibrator (9) is provided in the honeycomb duct. (6) and a second temperature detecting means (2) for detecting the temperature of the inflow air.
2) is disposed upstream of the ultrasonic vibrator (9), and temperature control means for controlling the amount of heat generated by the heater (20) based on the output signal of the first temperature detection means (21) is provided; A second configuration is provided with discharge amount control means of the perfume supply pump based on the output signal of the second temperature detection means (22). According to the present invention, in the first configuration, a first detecting means for detecting a temperature of the delivery air is provided.
A temperature detecting means (21) is disposed downstream of the honeycomb-shaped duct (6), and an ultrasonic vibrator (9) is disposed further downstream of the first temperature detecting means (21). A third configuration is provided with temperature control means for controlling the amount of heat generated by the heater (20) based on the output signal of the means (21).

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 (a) and 1 (b) FIG. 2 shows a first embodiment of a fragrance device according to the present invention. The main body 1 is formed of a material having a high thermal conductivity in a rectangular cylindrical shape, and the inside of the main body 1 is a duct 2 through which air passes. The upstream end (the right end in FIG. 1A) in the main body 1 is an air inlet 3 and the main body 1
The downstream end (the left end in FIG. 1A) is an air outlet 4. A blower 8 is provided at the inflow port 3 at the upstream end,
The ultrasonic vibrator 9 is supported by a support fitting (stay) 10 at a position slightly closer to the inflow port 3 than the center in the longitudinal direction of the main body 1. A first temperature sensor (first temperature detecting means) 21 is disposed at the center of the air outlet 4 in the main body 1, and a honeycomb-shaped duct 6 having a predetermined length is provided at a position upstream of the first temperature sensor 21.
Are arranged. The ultrasonic transducer 9 is arranged on the upstream side of the honeycomb-shaped duct 6, and a second temperature sensor (second temperature detecting means) 22 for detecting the temperature of the inflow air is arranged on the upstream side of the ultrasonic transducer 9. Have been. The honeycomb duct 6 is arranged so that air flows through a passage having a hexagonal cross section.

The tip of a nozzle 13 is arranged close to the vibrating surface 12 of the ultrasonic vibrator 9, and the rear end of the nozzle 13 is connected to a discharge port of a pump 15 via a pipe 14. One end of a pipe 16 is connected to the suction port of the pump 15, and the other end of the pipe 16 is opened near the bottom in the tank 17. A liquid perfume 18 is stored in the tank 17, and the perfume 18 can be supplied to the vibration surface 12 of the ultrasonic vibrator 9 by the pump 15. The vibrating surface 12 is the surface of the horn of the ultrasonic vibrator 9, and the amplitude of the vibration generated by the ultrasonic vibrator 9 is enlarged and output to the horn.

[0008] The outer periphery of the honeycomb-shaped duct 6 is in close contact with the inner surface of the main body 1 (the wall surface of the duct 2), so that heat conduction from the main body 1 to the honeycomb-shaped duct 6 is sufficiently performed.
A single or a plurality of heaters 20 are arranged on the outer peripheral surface of the main body 1 in a position near the honeycomb-shaped duct 6. The heat generated by the heater 20 is efficiently transmitted to the entire honeycomb duct 6 through the main body 1 so that the entire honeycomb duct 6 is uniformly heated.

Each output signal of the first temperature sensor 21 and the second temperature sensor 22 is configured to be input to a control device (microcomputer) 25 via wirings 40 and 41, respectively. The heater control signal of the control device 25 is transmitted to a controller (not shown) of the heater 20 through a wiring 42, and the motor control signal of the control device 25 is transmitted to a motor (not shown) of the blower 8 through a wiring 44. The pump control signal is transmitted to a drive motor (not shown) of the pump 15 through the wiring 45.

When the blower 8, the ultrasonic vibrator 9, the pump 15 and the heater 20 are operated, the fragrance 18 in the tank 17
Vibration surface 12 of ultrasonic vibrator 9 through nozzles 16 and 14
And the fragrance is atomized by the vibration of the vibration surface 12. The atomized perfume passes through the passage of the honeycomb-shaped duct 6 by the air flow sent from the blower 8. Since each passage of the honeycomb duct 6 is uniformly and appropriately heated, the fragrance is vaporized in the passage of the honeycomb duct 6, diffused into the air, and sent out from the outlet 4 together with the heated air.

First temperature sensor 21, control device 25 and heater
A temperature control means is constituted by 20, and the amount of heat generated by the heater 20 is controlled based on the output signal of the first temperature sensor 21. Further, the second temperature sensor 22, the control device 25, and the pump
The pump 15 discharge amount control means is constituted by 15, and the discharge amount of the pump is controlled.

FIG. 2 is a flowchart for executing the control of the heater 20 and the pump 15 by the control device 25. S1 to S8 used in this flowchart indicate step numbers. When the program starts, first
The temperature of the delivery air at the outlet 4 is detected by the temperature sensor 21 (step S1), and then it is determined whether or not the temperature of the delivery air at the outlet is equal to or higher than a first set temperature (step S2). Here, the first set temperature is determined by the honeycomb-shaped duct 6.
The temperature is suitable for evaporating the fragrance in the inside (depending on the kind of the fragrance, it is appropriate to be about 30 ° C. to 35 ° C. where the person does not feel hot even when touching the honeycomb-shaped duct 6). If the result of determination in step S2 is that the air temperature at the outlet is equal to or higher than the first set temperature, energization of the heater 20 is not turned off (step S3), and the air temperature at the outlet is not equal to or higher than the first set temperature. Turns on the power supply to the heater 20 (step S4). In this way, the temperature of the air at the outlet and thus the temperature of the honeycomb duct 6 are controlled.

Subsequently, the temperature of the inflow air is detected by the second temperature sensor 22 (step S5), and then it is determined whether or not the inflow air temperature is equal to or higher than the second set temperature (step S5).
6). When the inflow air temperature is low, the vibration surface of the ultrasonic vibrator 9
At 12, the particles of the fragrance atomized become large, and the fragrance particles tend to adhere to the wall surface of the honeycomb-shaped duct 6. Second
The set temperature is a temperature at which particles of the fragrance do not adhere to the wall surface of the honeycomb-shaped duct 6. If the result of determination in step S5 is that the inflow air temperature is equal to or higher than the second set temperature, the pump 15 is not operated normally (step S7), and if the inflow air temperature is not equal to or higher than the second set temperature, the discharge amount of the pump 15 Is reduced (step S8). When this execution is completed, the process returns to the first step S1. In this way,
When the operation of the pump 15 is controlled and the discharge amount is reduced in step S8, the fragrance particles to be atomized adhere to the wall surface of the honeycomb-shaped duct 6 even when the inflow air temperature is equal to or lower than the second set temperature. It changes to a size that does not. If the perfume concentration in the air sent from the outlet 4 decreases due to the decrease in the supply amount of the perfume, and it is difficult to perceive the scent of the perfume, the rotation speed of the blower 8 is reduced to send the perfume. It is possible to reduce the amount of air and control so that the concentration of the fragrance in the air becomes appropriate.

As described above, by controlling the temperature, the temperature of the honeycomb-shaped duct 6 is maintained at a temperature suitable for vaporizing the fragrance, and the air and fragrance delivered from the blow-out port 4 can feel the fragrance of the fragrance most comfortably. Temperature. And when the inflow air temperature is considerably low and it is difficult to atomize the usual amount of fragrance into small particles by the ultrasonic vibrator 9, the pump 15 is controlled to reduce the supply amount of fragrance.
In the first embodiment, the inflow air temperature is set to the second
When the temperature was not higher than the set temperature, the discharge amount of the pump 15 was reduced. However, at this time, the pump 15 is maintained in the normal operation, and the amplitude or the frequency of the ultrasonic vibrator 9 is increased, so that the fragrance supplied by the pump 15 is completely atomized into small particles. May be controlled as follows.

S1 to S4 in FIGS. 3 and 2 show a second embodiment of the fragrance device of the present invention. In the second embodiment, the second temperature sensor 22 of the first embodiment is omitted, and the ultrasonic vibrator 9 is moved to the vicinity of the outlet 4 at the downstream end in the main body 1, and accordingly, the honeycomb-shaped duct 6 and The first temperature sensor 21 is moved toward the blower 8. That is, the first temperature sensor 21 for detecting the temperature of the outgoing air is connected to the honeycomb duct 6.
The ultrasonic vibrator 9 is disposed further downstream of the first temperature sensor 21. The other configuration of the second embodiment is the same as that of the first embodiment, and the description is omitted.

In the second embodiment, a temperature control means for controlling the amount of heat generated by the heater 20 based on the output signal of the first temperature sensor 21 is provided, and the control of steps S1 to S4 in the flowchart of FIG. And steps S5 to S8 are omitted. The reason is that in the second embodiment, air exceeding the first set temperature is supplied to the ultrasonic vibrator 9, and it is apparent that this temperature exceeds the second set temperature.

[0017]

According to the first aspect of the present invention, a heated honeycomb duct is disposed upstream or downstream of the ultrasonic vibrator. Therefore, when the fragrance atomized on the vibration surface of the ultrasonic vibrator passes through a heated honeycomb-shaped duct or flows with heated air, it is all vaporized and diffused into the air, and the air outlet Sent from. Therefore, the fragrance, which has been atomized but not vaporized, does not drop near the outlet and adheres to an object near the outlet, and the fragrance is used efficiently. In the fragrance device of the present invention described in claim 2 or 3, atomization on the vibrating surface of the ultrasonic vibrator is completely performed, and the temperature of the delivery air is controlled to an appropriate temperature so that the atomized fragrance is completely removed. The air containing the fragrance vaporized into the air and discharged from the outlet can be maintained at a desired temperature at which the fragrance of the fragrance can be felt most comfortably.

[Brief description of the drawings]

FIG. 1 (a) is an explanatory view showing a first embodiment of the present invention, and FIG. 1 (b) is a sectional view taken along line AA of FIG. 1 (a).

FIG. 2 is a flowchart for executing control of the first embodiment of the present invention; steps S1 to S4 of the flowchart are also used for control of the second embodiment of the present invention; It is.

FIG. 3 is an explanatory view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 4 Air outlet 6 Honeycomb duct 9 Ultrasonic vibrator 12 Vibration surface 13 Nozzle 18 Fragrance 20 Heater 21 1st temperature detection device (sensor) 22 2nd temperature detection device (sensor)

Claims (3)

[Claims] 1. A blower is disposed at an upstream end in a cylindrical main body, and then an ultrasonic vibrator and a honeycomb duct are arranged so that one of them is located on the upstream side and the other is located on the downstream side. Disposed, the tip of the nozzle that supplies the liquid fragrance is disposed close to the vibration surface of the ultrasonic transducer, a heater is disposed on the outer surface of the main body and at a position near the honeycomb-shaped duct,
The main body and the honeycomb-shaped duct are made of a material with high thermal conductivity, and the outer periphery of the honeycomb-shaped duct and the inner surface of the main body are in close contact, so that the heat generated by the heater is efficiently conducted to the honeycomb-shaped duct through the main body. A fragrance device in which fragrance atomized on the vibration surface of the ultrasonic vibrator is vaporized in the main body and sent out from the outlet. 2. A first temperature detecting means for detecting a temperature of outgoing air is provided on a downstream side of the honeycomb-shaped duct, an ultrasonic vibrator is provided on an upstream side of the honeycomb-shaped duct, and the temperature of the incoming air is reduced. A second temperature detecting means for detecting a temperature is provided on the upstream side of the ultrasonic vibrator, and a temperature control means for controlling the amount of heat generated by the heater based on an output signal of the first temperature detecting means is provided. 2. The fragrance device according to claim 1, further comprising discharge amount control means of a fragrance supply pump based on an output signal of the temperature detection means. 3. A first temperature detecting means for detecting the temperature of the outgoing air is provided downstream of the honeycomb-shaped duct, and an ultrasonic vibrator is further provided downstream of the first temperature detecting means.
2. The fragrance device according to claim 1, further comprising a temperature controller for controlling the amount of heat generated by the heater based on an output signal of the temperature detector.