JPH08332425A - Atomizer - Google Patents

Abstract

PURPOSE: To keep the space as small as possible and to effectively and quantitatively diffuse a trace of perfume in the air by forming a piezoelectric element pump utilizing a piezoelectric element and a narrow pipe structure of a suction pass and a discharge pass therefor in a support block of an ultrasonic vibrator transducer atomizing means. CONSTITUTION: When a piezoelectric element 7 is vibrated, a diaphragm 6 is also vibrated, and negative pressure and positive pressure are alternately generated in a piezoelectric element pump chamber. As a result, after liquid perfume 2 housed in a liquid container 1 flows into the piezoelectric element pump chamber from a narrow pipe structure part 8 on the suction side through the 1st check valve 9, it flows out to a tip part 25 from a narrow pipe part 12 on the discharge side through the 2nd check valve 13 and through a liquid inflow part 22 of a horn 29. At this time, the horn 29 is vibrated by the piezoelectric element 23, and a trace of liquid perfume sent to the horn 29 from the liquid inflow part 22 by the piezoelectrc element pump is turned into perfume particles, which are diffused in the air from the tip part 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an atomizing device suitable for use as, for example, an aroma device for diffusing a trace amount of fragrance into the atmosphere.

[0002]

2. Description of the Related Art Conventionally, as a device for emitting perfume or the like, a solid perfume is spontaneously volatilized to be atomized, or a small amount of liquid perfume sucked up by a pump is atomized with an ultrasonic vibrator. An atomizing device is used. As a device to atomize the fragrance and perfume the scent into a room such as a hotel lobby or showroom in a relatively large place,
In some cases, a solid fragrance stored in a fragrance tank is vaporized and blown out by a blower. However, it was difficult to supply the optimum concentration of fragrance in the case of natural evaporation of fragrance. Therefore, there is known a perfume atomizing device that atomizes a liquid perfume by vibration of an ultrasonic transducer and blows the atomized perfume particles by a blower. This atomizer of fragrance uses a fragrance supply pump with a timer to supply the fragrance consisting of liquid to the tip of the ultrasonic vibrator, and from this pump through the fragrance supply pipe, a nozzle is attached to the tip of the upper ultrasonic vibrator. Was used to discharge the fragrance.

[0003]

Since the conventional atomizing device is constructed in this way, it is difficult to control the amount of solid perfume to be diffused when it is used, and a small amount of perfume is sucked up by a pump. However, there is a problem in that the structure of a micro metering pump for sucking a certain amount of a small amount of perfume becomes complicated and the pump is expensive. Also,
Conventionally, such a pump is an atomizing device in which this device and the device of the ultrasonic vibrator atomizing means are combined as two devices as a micro-quantitative pump device, so that a large space is required as a whole and a large size pump is provided. There was also the problem of becoming a device.

The present invention has been made in order to solve such a problem, and a micro-quantitative pump is provided in the support block of the ultrasonic vibrator atomizing means without using an expensive pump which requires a space. By incorporating them as a structure that forms the input / output pipe, the space can be minimized, and a small amount of a fixed amount of perfume can be efficiently diffused into the atmosphere without waste, and the atomization device can be downsized. The purpose is to provide.

[0005]

An atomizing apparatus according to the present invention has an ultrasonic vibrator atomizing means using a piezoelectric element,
A piezoelectric element pump using a piezoelectric element and a thin tube structure of an intake path and an exhaust path of the piezoelectric element pump are formed in a support block supporting the ultrasonic vibrator atomizing means.

Further, the atomizing device according to the present invention includes a liquid container for containing a liquid, a suction-side thin-tube structure opening of a thin-tube structure provided on the surface of the support block, and a liquid outflow provided in the lower part of the liquid container. And a second connecting portion that connects the discharge side thin tube structure opening provided in the support block and the liquid inflow portion of the ultrasonic transducer atomizing means. Is characterized by.

Further, the atomizing device according to the present invention is a suction device provided with a piezoelectric element pump having a piezoelectric element and a diaphragm to which the piezoelectric element is integrally attached, and a first check valve provided near the middle thereof. 2nd side near the tube structure and the middle
A discharge side thin tube structure provided with a check valve is provided.

Further, in the atomizing device according to the present invention, the timing of starting the delivery of the piezoelectric element pump for delivering the liquid to the ultrasonic transducer atomizing means is determined from the timing of starting the driving of the ultrasonic transducer atomizing means. A control means is provided for delaying the delivery of the piezoelectric element pump by a predetermined time and advancing the delivery stop timing of the piezoelectric element pump by a predetermined time from the drive stop timing of the ultrasonic transducer atomizing means.

[0009]

The atomizing device according to the present invention is a piezoelectric element pump using a piezoelectric element in which a suction passage and a discharge passage have a thin tube structure in a support block supporting an ultrasonic transducer atomizing means using a piezoelectric element. A small amount of perfume can be efficiently diffused into the atmosphere without waste by realizing the miniaturization by forming a unit and assembling it with the ultrasonic vibrator atomizing unit.

Further, in the atomizing device according to the present invention, the liquid container containing the liquid and the supporting block are connected to the first connecting portion, and the supporting block and the ultrasonic transducer atomizing means are connected to the second connecting portion. The liquid container, the support block, and the ultrasonic vibrator atomizing unit are integrally assembled to realize miniaturization, and a minute amount of the perfume can be efficiently and efficiently diffused into the atmosphere.

Further, in the atomizing device of the present invention, the thin pipe structure on the suction side is provided with the first check valve near the middle thereof, and the thin pipe structure on the discharge side is provided with the second check valve near the middle thereof. A piezoelectric element pump having a piezoelectric element and a diaphragm to which the piezoelectric element is integrally attached is formed in a support block, and the first check valve and the second check valve are driven by driving the piezoelectric element of the diaphragm. To prevent backflow of the liquid by the check valve and discharge the liquid from the liquid container to the ultrasonic vibrator atomizing unit in a predetermined amount, and efficiently atomize and diffuse the liquid in the liquid container into the atmosphere without waste. Realizes the delivery of a small amount and a fixed amount of liquid.

Further, in the atomizing device according to the present invention, the timing of starting the delivery of the piezoelectric element pump for delivering the liquid to the ultrasonic transducer atomizing means is determined from the timing of starting the driving of the ultrasonic transducer atomizing means. The liquid is prevented from remaining in the thin tube by delaying the time and controlling the delivery stop timing of the piezoelectric element pump to be earlier than the drive stop timing of the ultrasonic transducer atomizing means by a predetermined time. It facilitates cleaning and liquid replacement, especially perfume, and efficiently diffuses the liquid in the liquid container into the atmosphere without waste.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a structural diagram showing the internal configuration of the atomizing device of this embodiment. In the figure, 1 is a liquid container for containing a liquid fragrance 2, 3 is a liquid outflow portion provided under the liquid container 1,
Reference numeral 4 is a first connecting portion that fits with the liquid outflow portion 3, and 5 is a support block. 6 is a diaphragm made of an elastic body, 7
Is a piezoelectric element integrally attached to the diaphragm 6, 8 is a suction side thin tube structure portion, and 8a is a suction side thin tube structure portion 8. Reference numeral 9 is a first check valve which is formed near the middle of the suction side thin tube structure portion 8 and includes a sphere 10 and a spring 11 for urging the sphere 10. Reference numeral 12 is a thin tube structure portion on the discharge side. Reference numeral 13 is a second check valve which is formed in the vicinity of the middle of the thin tube structure portion 12 on the discharge side, and includes a sphere 14 and a spring 15 for biasing the sphere 14.
It has. The diaphragm 6, the piezoelectric element 7, the suction side thin tube structure portion 8, the first check valve 9, the discharge side thin tube structure portion 12, and the second check valve 13 are formed in the support block 5, and the piezoelectric element An element pump is constructed.

Reference numeral 21 is an opening portion of the thin tube structure portion 12 on the discharge side, and 22 is a liquid inflow portion of the horn 24. The thin tube structure opening 21 and the liquid inflow portion 22 constitute a second connecting portion. A piezoelectric element 23 is attached to the end of the horn 24 and vibrates the horn 24 in a unique vibration mode. The horn 24 is vibrated by the piezoelectric element 23, and the liquid perfume flowing in from the liquid inflow portion 22 is delivered to the tip portion 25 by the thin tube portion 26. Reference numerals 27 and 28 denote concave horn support portions for supporting the horn 24 inside the support block 5. Here, 24 a is a protrusion provided on the circumference of the horn 24 for supporting the horn 24. It is desirable that the position of the horn support portion is provided in the valley of ultrasonic vibration as much as possible.

Next, the operation of this atomizing device will be described. When the piezoelectric element 7 vibrates at a predetermined vibration frequency, the diaphragm 6 also vibrates, and negative pressure and positive pressure are alternately generated in the piezoelectric element pump chamber. As a result, when a negative pressure is generated in the piezoelectric element pump chamber, the liquid fragrance 2 contained in the liquid container 1 passes through the first check valve 9 from the suction side thin tube structure portion 8 into the piezoelectric element pump chamber. Inflow. Further, when a positive pressure is generated in the piezoelectric element pump chamber, the liquid perfume 2 that has flowed into the piezoelectric element pump chamber will have the thin tube structure portion 12 on the discharge side.
Through the second check valve 13, further flows through the liquid inflow portion 22 of the horn 24 to the tip portion 25.

At this time, the horn 24 is vibrating by the piezoelectric element 23, and the minute amount of the liquid perfume sent from the liquid inflow portion 22 to the horn 24 by the piezoelectric element pump becomes fine perfume particles due to the vibration of the horn 24. Becoming tip 2
Diffuse from 5 into the atmosphere.

FIG. 2 is a block diagram showing the arrangement of a control unit for driving the piezoelectric element for pump 7 included in the piezoelectric element pump and the piezoelectric element for horn 23 attached to the end of the horn 24. The control unit 30 includes oscillators 31 and 32 that generate a predetermined frequency signal and switch circuits 33 and 34 that drive the piezoelectric element 7 and the piezoelectric element 23. The switch circuits 33 and 34 are the control unit 30.
ON / OFF is controlled respectively by.

In the control section 30, the timing of starting the delivery of the piezoelectric element 7 for the piezoelectric element pump for delivering the liquid to the horn 24 is delayed by a predetermined time from the timing of starting the driving of the horn piezoelectric element 23 that vibrates the horn 24. At the same time, control is performed so that the timing of stopping the delivery of the piezoelectric element 7 is advanced by a predetermined time from the timing of stopping the driving of the piezoelectric element 23 that vibrates the horn 24. Therefore, the timing at which the switch circuit 33 is turned on is set to be later than the timing at which the switch circuit 34 is turned on.
Further, the ON / OFF control signals A and B for each switch circuit are generated so that the switch circuit 33 is turned off earlier than the switch circuit 34 is turned off, and output to the switch circuits 33 and 34 for control.

As described above, in this embodiment, the diaphragm 6, the piezoelectric element 7, the suction side thin tube structure portion 8, the first check valve 9, the discharge side thin tube structure portion 12, and the second check valve 13 are used for the piezoelectric operation. Since the element pump is constructed in the support block 5, the entire apparatus is made compact, and the start of liquid delivery by the piezoelectric element pump is made later than the start of vibration of the horn 24. The liquid perfume remaining in the horn 24 after the piezoelectric element pump is stopped is prevented because the piezoelectric element pump stops the liquid delivery earlier than the vibration start of the horn 24. Is completely atomized and diffused into the atmosphere. Therefore, cleaning is facilitated, and the two kinds of fragrances are not mixed by different fragrance replacements, and the replacements are also easy.

[0020]

According to the present invention, the piezoelectric element pump is formed in the support block of the ultrasonic vibrator atomizing means, and the capillary tube structure is formed in the suction passage and the discharge passage of the piezoelectric element pump. As a result, the entire device is compact and miniaturized.

Further, according to the present invention, the support block and the liquid container, and the support block and the ultrasonic vibrator atomizing means are connected by the first connecting portion and the second connecting portion, respectively, so that they are integrally combined. As a result, the device can be easily assembled and repaired, and the entire device can be made compact and compact.

Further, according to the present invention, the piezoelectric element pump is transferred with different timings for starting and stopping the driving of the piezoelectric element pump and for starting and stopping the driving of the ultrasonic vibrator atomizing means. Since the liquid to be atomized is completely atomized and the liquid does not remain in the device as a liquid, the liquid can be efficiently diffused into the atmosphere without waste, and cleaning, liquid, especially fragrance replacement is easy. effective.

[Brief description of drawings]

FIG. 1 is a structural diagram showing an internal configuration of an atomizing device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a control unit for vibrating a piezoelectric element pump and a horn of an atomizing device according to an exemplary embodiment of the present invention.

FIG. 3 is a waveform diagram showing an on / off control signal of a switch circuit generated by a controller of the atomizing device according to the exemplary embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid container 4 1st connection part 5 Support block 6 Diagram 7 Piezoelectric element 8 12 Capillary structure part (capillary structure) 8a, 21 Capillary structure opening 9 1st check valve 13 2nd check valve 21 Capillary structure opening 22 Liquid Inflow Portion (Second Connection Portion) 23 Piezoelectric Element 24 Horn (Ultrasonic Transducer Atomizing Means) 30 Control Unit (Controlling Means)

Claims (4)

[Claims] 1. A piezoelectric element pump using a piezoelectric element and a piezoelectric element pump in a support block having an ultrasonic vibrator atomizing means using a piezoelectric element and supporting the ultrasonic vibrator atomizing means. An atomizing device, characterized in that a suction tube and a discharge tube of an element pump are formed with a thin tube structure. 2. A first connection for connecting a liquid container containing a liquid, a suction-side thin-tube structure opening of the thin-tube structure provided on the surface of the support block, and a liquid outflow part provided in the lower part of the liquid container. And a second connecting portion that connects the discharge-side thin-tube structure opening provided in the support block and the liquid inflow portion of the ultrasonic vibrator atomizing means. Atomization device described. 3. The piezoelectric element pump includes a piezoelectric element and a diaphragm to which the piezoelectric element is integrally attached, and the suction side thin tube structure is provided with a first check valve near the middle thereof. The second check valve is provided near the middle of the thin tube structure on the discharge side.
Or the atomizing device according to claim 2. 4. The delivery start timing of the piezoelectric element pump for delivering the liquid to the ultrasonic transducer atomizing means is delayed by a predetermined time from the drive start timing of the ultrasonic transducer atomizing means, and 4. A control means for advancing the timing of stopping the delivery of the piezoelectric element pump by a predetermined time from the timing of stopping the driving of the ultrasonic vibrator atomizing means.
Atomization device described.