CN101461978A - Micro atomization device - Google Patents

Abstract

A micro-atomization device is provided, wherein a micro-atomization generator is installed near the bottom opening of a liquid storage container to atomize the liquid supplied in the storage container, and a sensor is used to detect at any time whether the liquid in the storage container contacts the electrical characteristics of the micro-atomization generator. The electrical characteristics change is transmitted to a controller for calculation to control whether the micro-atomization generator continues to operate or stops. When the micro-atomization generator is controlled to stop operating, the controller simultaneously activates a warning device to send a warning signal.

Description

Micro atomization device

technical field

The invention relates to a micro-atomization device, in particular to a micro-atomization dispensing device capable of supplying quantitative and uniform stable atomized medicine.

Background technique

The known atomizing device includes at least a small hole thin plate, which is combined with a piezoelectric component, and an AC voltage is provided to the piezoelectric element to make it vibrate at a fixed frequency, and then drive the small hole thin plate to vibrate; such as a wick fluid The supplier sends the liquid to be atomized from a storage tank to one side of the small hole sheet, so that the liquid contacts the small hole area of the sheet, and is atomized by the extrusion of the small hole and sprayed out from the other side of the small plate.

Atomization devices are widely used to atomize liquids such as perfume, air fragrance or medicaments, especially for drug delivery devices that atomize medicaments. For example, patients with respiratory diseases can use this atomization device. The nebulized medicine is inhaled into the bronchi and lungs through the inspiratory port on the nebulizing device for treatment and relief.

Medical nebulizers are required to be able to supply quantitative and uniform stable nebulized medicaments within a unit of time to ensure the therapeutic effect. However, most of the current atomization devices consume a lot of power, and the supply of liquid medicine is interrupted or exhausted, which is not easy to detect. Therefore, in addition to unnecessary power consumption, it will cause unpredictable adverse effects on patient treatment. There are currently no known atomizing devices of any known type that provide an effective solution to this.

Contents of the invention

The purpose of the present invention is to provide a micro-atomization device, which can monitor whether the liquid in the storage container contacts the micro-atomization generator at any time, and when the liquid supply is interrupted or exhausted, the micro-atomization generation can be controlled by the controller in real time device stops functioning.

The technical solution of the present invention is: a kind of micro-atomization device, this device comprises at least:

a storage container for liquid;

A micro-atomization generator installed adjacent to the bottom opening of a liquid storage container, the liquid supplied in the storage container is micro-atomized by the micro-atomization generator and sprayed to the outside;

a sensor to detect an electrical characteristic that changes in response to liquid in the storage container being in contact with or not in contact with the micro-atomizer; and

A controller controls the micro-atomization generator to operate or stop operating according to the electrical characteristic change detected by the sensor.

The present invention may further include a warning device. When the change value of the electrical characteristic exceeds a preset safe range value, the controller simultaneously activates the warning device to operate, and emits warning signals such as lights or sounds.

The micro-atomization device of the present invention utilizes the sensor to monitor whether the liquid in the storage container contacts the micro-atomization generator, and when the liquid supply is interrupted or exhausted, the controller controls the micro-atomization generator to stop operating in real time, To ensure that the micro-atomization device can provide quantitative and uniform stable atomized medicine to patients under normal operation.

The present invention includes a warning device, which activates a warning device at the same time to send a warning signal when the controller stops the operation of the micro-atomization device, and informs the patient to stop using the micro-atomization device, or to further refill the medicament, Make it normally supplied to the micro atomization generator.

Description of drawings

Figure 1 is a perspective view of the appearance of the micro-atomization device of the present invention;

Fig. 2 is a partial enlarged sectional view of the micro-atomization device;

Fig. 3 is an enlarged view of part A in Fig. 2;

Figure 4 is a schematic diagram of the internal structure of the micro-atomization device;

Fig. 5 is the flow chart of the control action of the micro-atomization device; and

Fig. 6 is an enlarged cross-sectional view of the orifice sheet in the micro-atomization device.

[Description of main component symbols]

10 storage container 11 handle

12 Bottom opening 20 Micro atomization generator

21 Protective cover spout 22 Oscillator

23 Nozzle sheet 231 Nozzle

24 Elastic covering components 30 Sensors

40 Controller 50 Warning device

70 The first step 71 The second step

72 The third step 73 The fourth step

Detailed ways

Please refer to the following detailed description of the preferred embodiments of the present invention and the accompanying drawings, so as to further understand the technical content of the present invention and its purpose and effect.

Please refer to FIGS. 1 to 4 at the same time. The micro-atomization device provided by the present invention mainly includes: a storage container 10 for containing liquid; a micro-atomization generator 20 installed at the bottom of a liquid storage container 10 Opening, and communicated with the storage container 10, in order to atomize the liquid supplied in the storage container 10; a sensor 30, in order to detect an electrical characteristic, the electrical characteristic is based on the liquid in the storage container 10 contact or not and a controller 40 controls the micro-atomization generator 20 to operate or stop operating according to the change of the electrical characteristic detected by the sensor 30 . In other words, the sensor 30 detects and monitors whether the liquid in the storage container 10 contacts the micro-atomization generator 20 at any time. When the liquid supply is interrupted or exhausted, the controller 40 controls the micro-atomization generator 20 to stop operating in real time to ensure The micro-atomization device can provide quantitative and uniform stable atomized medicine to patients under normal operation.

As shown in FIG. 1 , a handle portion 11 is provided under the storage container 10 to facilitate the patient to hold the micro-atomization device.

As shown in Figures 2 and 3, the micro-atomization generator 20 is installed adjacent to a bottom opening 12 of the storage container 10, so that after the liquid supplied by it is micro-atomized, and the atomization generator 20 The protective cover nozzle 21 sprays out the outside world. The micro-atomization generator 20 mainly includes an oscillator 22 and an orifice plate 23 . Wherein the oscillator 22 can be a piezoelectric component, controlled by the controller 40 to supply the working voltage required by the oscillator 22 , to oscillate or stop working under control. The orifice sheet 23 is provided with at least one tapered orifice 231 (please refer to FIG. 6 ) with a micro-aperture that tapers outward from the storage container 10, and an elastic covering component 24 is used to cover the oscillator. 22 and the orifice sheet 23, when the oscillator 22 oscillates, the orifice sheet 23 is driven to vibrate back and forth, and the reciprocating vibration of the orifice sheet 23 makes a plurality of conical nozzle holes 231 tapered The liquid in the storage container 10 is atomized and sprayed out from the nozzle 21 of the protective cover.

Please refer to FIG. 4 , the sensor 30 includes a piezoelectric component and a metering circuit, and the piezoelectric component will produce a change in electrical characteristics according to whether the liquid in the storage container 10 contacts the micro-atomization generator 20. The change of electrical characteristics is measured and calculated by the metering circuit, and then sent to the controller 40 as a basis for controlling whether the micro-atomization generator 20 continues to operate.

The aforementioned electrical characteristics detected by the sensor 30 include electrical characteristics such as impedance, capacitance, or inductance; moreover, the sensor 30 can also be a piezoelectric component for oscillation in the micro-atomization generator 20 .

In another embodiment, the sensor 30 is an optical sensor, which is used to detect whether the liquid in the storage container 10 touches a specific position of the micro-atomization generator 20 .

In yet another embodiment, the sensor 30 is a conductive sensor (conductive sensor), used for sensing the electrical characteristics between the liquid in the storage container and at least two points on the surface of the micro-atomization generator 20, At least one of these points is at a location where liquid is supplied to the micro-atomization generator 20 .

The aforementioned conductivity sensor can also be set at the position where the liquid is supplied to the micro-atomization generator 20 to detect the electrical conductivity between the electrical conductor and the micro-atomization generator 20 .

The controller 40 can receive the change value of the electrical characteristic detected by the sensor 30, calculate it and compare it with a preset safe range value, and when the detected change value exceeds the set safe range value, the controller 40 Immediately order the micro-atomization generator 20 to stop operating, and at the same time, order the warning device 50 to send out a warning signal such as a light or sound.

Please refer to Figure 5, according to the aforementioned micro-atomization device, its control and operation process includes the following steps:

The first step 70: activate the micro-spray device, and start to operate according to the user's pressing of the activation device;

The second step 71: the sensor detects at any time whether the liquid is in contact with the electrical characteristics generated by the micro-atomization generator, and judges whether it exceeds the requirements of the safe range value. If so, proceed to the fourth step 73 below, and if not, enter the third step. Step 72;

The third step 72: the oscillator continues to oscillate and atomize the liquid, and returns to the second step 71 for continuous detection; and

The fourth step 73: when the sensor detects that the liquid exceeds the set safety range value, immediately stop the operation of the oscillator, and send out a warning signal by the warning device.

The micro-atomization device provided by the present invention uses the sensor to monitor whether the liquid in the storage container touches the micro-atomization generator, and controls the micro-atomization generator via the controller in real time when the liquid supply is interrupted or exhausted Stop the operation to ensure that the micro-atomization device can provide quantitative and uniform stable atomized medicine to the patient under normal operation.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention, and any equivalent implementation or change that does not depart from the technical spirit of the present invention shall be accepted. should be included in the patent scope of this case.

Claims (15)

1. a micro-atomizing device is characterized in that, this device includes at least:

The storage capsule of one carrying liquid;

One little atomizing generator is installed on the bottom opening place of contiguous storage capsule, and the liquid of being supplied in this storage capsule is injected into the external world after by the little atomizing of this little atomizing generator;

One pick off detects one according to the contact of the liquid in the storage capsule or do not contact little atomizing generator and the electrical characteristic that changes; And

One controller changes according to the detected electrical characteristic of this pick off, control should little atomizing generator generation to operate or decommission.

2. micro-atomizing device as claimed in claim 1 is characterized in that, this little atomizing generator comprises an agitator and a spray nozzle sheet, and this agitator vibrates the spray nozzle sheet in little atomizing generator.

3. micro-atomizing device as claimed in claim 2 is characterized in that, this spray nozzle sheet comprises a plurality of taper spray orifices by outside convergent in this storage capsule.

4. micro-atomizing device as claimed in claim 2 is characterized in that this agitator comprises a piezoelectric element.

5. micro-atomizing device as claimed in claim 1 is characterized in that this pick off comprises a piezoelectric element, and whether the liquid that is used to detect in this storage capsule contacts little atomizing generator to produce the variation of corresponding electrical characteristic.

6. micro-atomizing device as claimed in claim 5 is characterized in that, this pick off comprises that one measures the metering circuit of the impedance variation of this piezoelectric element.

7. micro-atomizing device as claimed in claim 1 is characterized in that this pick off comprises an optical pickocff.

8. micro-atomizing device as claimed in claim 7 is characterized in that, whether the liquid that this optical pickocff detects in the described storage capsule contacts this little atomizing generator.

9. micro-atomizing device as claimed in claim 8 is characterized in that, whether the liquid that this optical pickocff detects in the described storage capsule contacts the position that this liquid is provided to this little atomizing generator.

10. micro-atomizing device as claimed in claim 1, it is characterized in that, this pick off comprises a conductivity sensor, the liquid of induction in being fed to this storage capsule is the electrical characteristic between at least two points to this little atomizing generator surface, and wherein at least one point is to be positioned at the position that liquid is provided to this little atomizing generator.

11. micro-atomizing device as claimed in claim 1 is characterized in that, this electrical characteristic comprises impedance or electric capacity or inductance.

12. micro-atomizing device as claimed in claim 1, it is characterized in that, this pick off comprises a conductivity sensor, and this conductivity sensor is positioned at the position that liquid is supplied to little atomizing generator, detects the electrical characteristic between this conductivity sensor and this little atomizing generator.

13. micro-atomizing device as claimed in claim 1 is characterized in that, this controller preestablishes the safety range value that an electrical characteristic changes.

14. micro-atomizing device as claimed in claim 1 is characterized in that, this device also comprises an alarming device, and this alarming device is connected to this controller.

15. micro-atomizing device as claimed in claim 14 is characterized in that, this alarm signal comprises a cresset or an acoustical signal.

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