KR102457226B1 - Apparatus that atomizes disinfectants indoors using ultrasonic waves - Google Patents

Abstract

One embodiment of the present invention proposes a device for atomizing a disinfectant using ultrasonic waves indoors.
Here, the disinfectant atomization device includes a disinfectant supply unit in which the disinfectant is stored, an ultrasonic generator for receiving the disinfectant from the disinfectant supply unit and generating ultrasonic waves to atomize the disinfectant, and at least one sprayer for spraying the disinfectant atomized in the form of fine particles. A disinfectant spraying unit including a nozzle, a housing in which the disinfectant supply unit and the disinfectant spraying unit are accommodated, a proximity sensor installed on one side of the housing to detect an object approaching the disinfectant spraying unit, installed in the housing, the disinfectant supply unit and the disinfectant spraying unit. A control board for controlling the disinfectant injection unit may be included.

Description

A device that atomizes disinfectants using ultrasonic waves indoors {APPARATUS THAT ATOMIZES DISINFECTANTS INDOORS USING ULTRASONIC WAVES}

The present invention relates to an apparatus for atomizing a disinfectant using ultrasonic waves indoors.

In general, a worker's body, hands, and feet are disinfected with chemicals before entering a room where bacteria or foreign substances are blocked. In particular, public facilities such as schools, hospitals, sanatoriums, hotels, saunas, bathhouses, etc., where periodic sterilization and disinfection must be performed, food processing facilities, industrial water cooling towers, meat processing facilities, food and food preparation equipment, etc. In the field, cleaning, sterilization, and disinfection are always performed.

In general, a disinfectant spraying device is composed of a container containing liquid medicine and a spraying device capable of spraying the disinfectant in the container. There is a disinfectant spraying device that manually sprays disinfectant including a spray button for spraying disinfectant, but this type of disinfectant spraying device can be abused and the spray button is manually operated, so there is a risk of re-contamination. Problems can arise.

In addition, when the disinfectant spray device is fixed in a specific direction, it is difficult to expect the disinfectant to be appropriately sprayed according to the body condition of the worker. For example, disinfection may not be performed properly due to insufficient time for spraying the disinfectant to a worker with a large body, and excessive disinfectant may be sprayed to a worker with a small body.

In addition, if the worker leaves the disinfection area before the worker's body is sufficiently disinfected by the disinfectant, the contamination state of the worker is not improved and there is a risk that contaminants may penetrate the room requiring sterilization and disinfection.

Republic of Korea Patent Registration No. 10-2159727 (2020.09.24.) Republic of Korea Patent Registration No. 10-1241051 (2013.03.07.) Republic of Korea Patent Registration No. 10-2026809 (2019.11.15.)

Accordingly, the problem to be solved by the present invention is to provide an indoor disinfectant atomization device capable of automatically spraying a disinfectant when adjacent to the device without manipulating the spray button.

The tasks of the present invention are not limited to the tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the following description.

An apparatus for atomizing a disinfectant using ultrasonic waves indoors according to an embodiment of the present invention for solving the above problems is a disinfectant supply unit in which the disinfectant is stored, receives the disinfectant from the disinfectant supply unit, and generates ultrasonic waves to spray the disinfectant. A disinfectant spraying unit including an atomizing ultrasonic generator and at least one spraying nozzle spraying the disinfectant atomized in the form of fine particles, a housing in which the disinfectant supply unit and the disinfectant spraying unit are accommodated, and installed on one side of the housing to spray the disinfectant powder A proximity sensor for detecting an object approaching the master unit, and a control board installed in the housing to control the disinfectant supply unit and the disinfectant spray unit, wherein the disinfectant spray unit can be controlled to operate when the object is adjacent to a predetermined distance. have.

Other embodiment specifics are included in the detailed description and drawings.

According to the automatic disinfectant spraying device according to an embodiment of the present invention, since the disinfectant is automatically sprayed when an object is adjacent, the inconvenience of manually operating the disinfectant spray button can be eliminated, and the problem of recontamination due to the spray button operation can be solved. can

In addition, according to the automatic disinfectant injection device according to an embodiment of the present invention, the rotation of the automatic disinfectant injection device is automatically controlled by the sensing value of the proximity sensor, and the spray direction corresponding to the size of the object is determined, so that the object to be disinfected By optimizing the distance between the spray nozzle and the spray nozzle, it is possible to spray the disinfectant evenly on the object without causing unnecessary wastage of disinfectant.

In addition, according to the automatic disinfectant spraying device according to an embodiment of the present invention, it is possible to effectively notify the object to be disinfected or the manager of the operation and status of the automatic disinfectant spraying device, including lamps and speakers, and disinfection due to deviation within the disinfection time. If the process is not completed, it may be induced to perform the disinfection process again.

Effects according to the embodiments are not limited by the contents exemplified above, and more various effects are included in this specification.

1 is a view showing an automatic disinfectant injection device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the automatic disinfectant injection device of FIG. 1 cut along a first direction.
Figure 3 is a block diagram schematically showing the configuration of the automatic disinfectant injection device of Figure 1;
FIG. 4 is a view for explaining an operation of the automatic disinfectant injection device of FIG. 1 adjusting an injection angle according to the size of an object.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims.

The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments are illustrative, and the present invention is not limited thereto. Like reference numbers designate like elements throughout the specification. In addition, parts not related to the present invention in the drawings may be omitted or simply expressed in order to clarify the description of the present invention.

Although first, second, etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, the automatic disinfectant injection device may be referred to as a disinfectant atomization device, that is, a device that atomizes a disinfectant using ultrasonic waves indoors.

1 is a view showing an automatic disinfectant injection device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the automatic disinfectant injection device of FIG. 1 cut along a first direction.

1 and 2, the automatic disinfectant injection device 10 includes a housing 100, a disinfectant supply unit 200, a disinfectant spray unit 300, a control board 400, an external housing 500, and a device fixing unit. (600).

The housing 100 forms the exterior of the automatic disinfectant spraying device 10, and may provide a space capable of accommodating various components included in the automatic disinfecting agent spraying device 10.

The housing 100 may include a side portion 101 and a bottom portion 102 . As shown in FIG. 1 , the side portion 101 extends along the first direction X and may be formed in a cylindrical shape with a penetrating inside. Inside the side part 101, mounting parts to which components of the automatic disinfectant injection device 10 are mounted may be formed.

The bottom portion 102 may be formed to cover the through surface of the side portion 101 and may have substantially the same size as the circumference of the side portion 101 . That is, the bottom portion 102 may be formed in a substantially flat disc shape, but is not limited thereto.

The shape of the housing 100 is not limited to the above. For example, in another embodiment, the housing 100 may be formed in a rectangular pillar shape.

A proximity sensor PS and a lamp LP may be disposed on one side of the housing 100 . The proximity sensor PS and the lamp LP may be installed at one end of the housing 100 and disposed to face outward (or in a spraying direction).

The proximity sensor PS may detect an object approaching the automatic disinfectant injection device 10 and measure a distance between the approaching object and the automatic disinfectant injection device 10 . Also, the proximity sensor PS may be configured to measure the size of an object approaching. for example. When the approaching object is a person, it may be configured to roughly measure the person's height. To this end, the proximity sensor PS may be composed of a composite sensor in which a plurality of sensors are combined rather than a single sensor.

In one embodiment, the proximity sensor PS may include an ultrasonic proximity sensor including an ultrasonic sensor. In this case, the proximity sensor PS may be configured to include an ultrasonic transmitter for emitting ultrasonic waves toward an object and an ultrasonic receiver for receiving ultrasonic waves reflected on an object. In another embodiment, the proximity sensor PS may include an infrared proximity sensor including an infrared sensor. In this case, the proximity sensor PS may measure the distance to the object by measuring a reflection angle of infrared rays reflected on the object.

The lamp LP, together with the proximity sensor PS, may be installed at one end of the housing 100 and face outward. The lamp LP may emit light of various colors according to the operation of the automatic disinfectant injection device 10 . For example, the lamp LP emits light of a first color when the automatic disinfectant spray device 10 operates normally, and emits light of a second color when a problem occurs in the operation of the automatic disinfectant spray device 10. can emit. Here, the first color may be green and the second color may be red, but is not limited thereto. In one embodiment, the lamp LP may include a plurality of light emitting diodes, but is not limited thereto.

Inside the housing 100, a disinfectant supply unit 200, a disinfectant spray unit 300, and a control board 400 may be disposed.

The disinfectant supply unit 200 may include an internal space for storing liquid disinfectant (SNT). The disinfectant supply unit 200 may supply the disinfectant SNT stored in the internal space to the disinfectant spray unit 300 .

The amount of the disinfectant (SNT) supplied by the disinfectant supply unit 200 may be controlled by the control board 400 to be described later. Specifically, the supply control nozzle 250 connecting the disinfectant supply unit 200 and the disinfectant spray unit 300 may be controlled by the control board 400 . Accordingly, it is possible to prevent overuse of the disinfectant SNT from being supplied to the disinfectant injection unit 300 in excess of the disinfectant SNT.

The disinfectant injection unit 300 may receive the disinfectant SNT from the disinfectant supply unit 200, atomize the supplied disinfectant SNT, and inject the disinfectant SNT to the outside. Specifically, the disinfectant sprayer 300 may include an ultrasonic generator 310 and a plurality of spray nozzles NZ.

The ultrasonic generator 310 may be disposed adjacent to a path (eg, a disinfectant transfer tube) along which the disinfectant SNT supplied from the disinfectant supply unit 200 moves. For example, the ultrasonic generator 310 may be disposed to cover a moving path of the disinfectant SNT.

The disinfectant SNT supplied from the disinfectant supply unit 200 may move toward the spray nozzle NZ along the moving tube. The ultrasonic generator 310 may generate ultrasonic waves to atomize at least a portion of the disinfectant SNT in the moving path in the form of fine particles, and the atomized disinfectant SNT may be sprayed to the outside through the spray nozzle NZ. .

The ultrasonic generator 310 may be made of piezo-electric ceramic and may generate vibrations of 0.3 MHz to 25 MHz, but is not limited thereto.

Depending on the embodiment, the disinfectant injection unit 300 may further include a blower (not shown) for smoothly discharging the atomized disinfectant (SNT) to the outside in the form of fine particles. The disinfectant (SNT) atomized by the ultrasonic generator 310 may be sprayed to the outside according to the blowing direction and blowing strength of the blower.

The ultrasonic generator 310 may be included for each disinfectant spraying unit 300, and four ultrasonic generators 310 may be included according to the four disinfectant spraying units 300 in one embodiment.

A plurality of spray nozzles NZ may be formed so that the disinfectant SNT can be evenly sprayed over a wide range. For example, the automatic disinfectant spraying device 10 of FIG. 1 may include four spray nozzles NZ, but is not limited thereto, and may include only one spray nozzle NZ or five or more spray nozzles (NZ) as needed. NZ) may be included.

The control board 400 may be stably fixed in the housing 100 . For example, as shown in FIG. 2 , the control board 400 may be attached to the bottom portion 102 of the housing 100 . The location of the control board 400 is not limited thereto. In another embodiment, the control board 400 may be separately mounted outside the housing 100 .

The control board 400 may control the disinfectant supply unit 200 and the disinfectant spray unit 300 . As described above, the control board 400 can control the supply control nozzle 250 connecting the disinfectant supply unit 200 and the disinfectant spray unit 300 to adjust the disinfectant (SNT) supply capacity of the disinfectant supply unit 200. have.

In addition, the control board 400 may control the amount of atomization of the disinfectant SNT by controlling the ultrasonic generator 310 of the disinfectant spray unit 300 . For example, the capacity of the atomized disinfectant (SNT) may be increased or decreased by adjusting the frequency of the ultrasonic generator 310 .

Meanwhile, the control board 400 may be electrically connected to the proximity sensor PS, and may control the automatic disinfectant injection device 10 based on a sensing value of the proximity sensor PS. For example, the control board 400 may operate the disinfectant supply unit 200 and the disinfectant spray unit 300 to spray the disinfectant SNT when an object detected by the proximity sensor PS is located within a predetermined distance. have.

An external housing 500 may be further disposed outside the housing 100 accommodating the disinfectant supply unit 200 , the disinfectant spray unit 300 and the control board 400 . The outer housing 500 may be made of a material having higher strength than the housing 100 and may be configured to protect the automatic disinfectant injection device 10 from external impact.

In addition, the outer housing 500 may be connected to a power supply unit PW supplied from the outside to supply power to the control board 400 . The control board 400 may distribute and supply the supplied power to the disinfectant supply unit 200, the disinfectant spray unit 300, and other components.

The device fixing part 600 may be coupled to the outer housing 500, and the device fixing part 600 may fix the automatic disinfectant injection device 10 at a predetermined position. For example, the device fixing unit 600 may fix the automatic disinfectant injection device 10 to a ceiling of a building or an upper end of a doorway.

The outer housing 500 may be rotatably coupled with respect to the device fixing part 600 . Accordingly, the spraying direction of the disinfectant (SNT) of the automatic disinfectant spraying device 10 may be adjusted. For example, when the automatic disinfectant injection device 10 is installed on the ceiling surface of a building, the spray angle of the disinfectant SNT may be adjusted from 0 degrees to 90 degrees based on the ceiling surface.

Rotation of the automatic disinfectant injection device 10 may be automatically controlled based on a sensing value of the proximity sensor PS. To this end, the outer housing 500 may further include a rotation module (not shown) including a driving motor. The rotation module may be controlled by the control board 400 . Control of the spray direction of the automatic disinfectant spray device 10 will be described later with reference to FIGS. 3 and 4 .

Meanwhile, a speaker SPK may be further installed outside the outer housing 500 . The speaker SPK may indicate an operating state of the automatic disinfectant injection device 10 together with the lamp LP, and may provide voice information to a disinfectant target.

For example, the automatic disinfectant injection device 10 may guide a disinfection time for sufficient disinfection through a speaker SPK or notify the completion of disinfection by voice.

As shown in FIG. 1 , the mounting position of the speaker SPK may be the outer portion of the outer housing 500, but is not limited thereto. For example, the speaker SPK may be formed at one end of the housing 100 together with the proximity sensor PS and the lamp LP.

Hereinafter, the operation of the automatic disinfectant injection device 10 according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4 .

Figure 3 is a block diagram schematically showing the configuration of the automatic disinfectant injection device of Figure 1;

1 to 3, the control board 400 of the automatic disinfectant injection device 10 according to the present invention includes a disinfectant supply unit 200 and a disinfectant spray unit 300 based on the sensing value of the proximity sensor PS. , the lamp LP, and the speaker SPK can be controlled.

In addition, as described above, the control board 400 may receive power from the power supply unit PW, distribute the supplied power, and provide the power to each component of the automatic disinfectant injection device 10 .

The control board 400 may control the operations of the disinfectant supply unit 200 and the disinfectant spray unit 300 based on the sensing value of the proximity sensor PS. In one embodiment, the proximity sensor (PS) may detect the proximity of the automatic disinfectant injection device 10 and an object, and when the object is adjacent within a predetermined distance, a detection signal is generated and provided to the control board 400. can do.

The control board 400 may generate a disinfection operation signal in response to a detection signal of the proximity sensor PS and provide the disinfection operation signal to the disinfectant supply unit 200 and the disinfectant spray unit 300 .

The disinfectant supply unit 200 supplies a portion of the disinfectant stored in the internal space to the disinfectant sprayer 300 in response to the disinfection operation signal, and the disinfectant sprayer 300 atomizes the supplied disinfectant in response to the disinfection operation signal to the outside. can be sprayed with

As described above, in the case of the automatic disinfectant spraying device 10 according to an embodiment of the present invention, the disinfectant is automatically sprayed when an object is adjacent, so the inconvenience of manually operating the disinfectant spray button can be eliminated, and the spray button The problem of re-contamination due to manipulation can be solved.

The control board 400 may include a spraying angle adjusting unit 410 and a spraying time adjusting unit 420, and may control the disinfectant spraying angle and disinfectant spraying time of the automatic disinfectant spraying device 10.

The spray angle control unit 410 may control the rotation of the automatic disinfectant spray device 10 coupled to the device fixing unit 600 to adjust the spray angle of the disinfectant.

The spray angle adjusting unit 410 may determine the spray angle of the disinfectant according to the sensing value of the proximity sensor PS, and may rotate the automatic disinfectant spray device 10 . For example, when the size of the object measured by the proximity sensor PS is larger or smaller than the reference value, the spray direction (or spray angle) of the disinfectant may be adjusted to suit the size of the object.

Hereinafter, an operation in which the spray angle is adjusted by the spray angle adjuster 410 will be described with further reference to FIG. 4 .

FIG. 4 is a view for explaining an operation of the automatic disinfectant injection device of FIG. 1 adjusting an injection angle according to the size of an object.

Referring further to FIG. 4 , the automatic disinfectant injection device 10 may detect a first object OBJ1 and a second object OBJ2 to be disinfected through the proximity sensor PS, and may detect the first object OBJ1 and the second object OBJ2. The size of the second object OBJ2 may be measured.

The automatic disinfectant spraying device 10 may spray the disinfectant in the spraying direction AD corresponding to the size of the first object OBJ1 to disinfect the first object OBJ1.

When the disinfectant is sprayed from the automatic disinfectant spraying device 10 along the spraying direction AD, the disinfectant can be evenly sprayed on the first object OBJ1, and the first object OBJ1 can be properly disinfected. .

On the other hand, when the automatic disinfectant injection device 10 disinfects the second object OBJ2 having a smaller size than the first object OBJ1, the disinfectant may be sprayed in the same spray direction AD as the first object OBJ1. In this case, the distance between the spray nozzle NZ and the second object OBJ2 may be relatively long, and the disinfectant may not be evenly sprayed on the second object OBJ2.

Accordingly, the disinfectant sprayed from the automatic disinfectant injection device 10 is dispersed into the air before reaching the second object OBJ2, so the disinfectant may be consumed unnecessarily, and the second object OBJ2 is properly disinfected. may not support

The automatic disinfectant spraying device 10 of the present invention may adjust the spraying direction (or spraying angle) of the automatic disinfectant spraying device 10 to reduce the distance between the spray nozzle NZ and the second object OBJ2.

The spray angle adjuster 410 of the control board 400 may determine the spray direction AD' corresponding to the second object OBJ2 whose size is smaller than the reference value based on the sensing value of the proximity sensor PS. .

As illustrated in FIG. 4 , the automatic disinfectant injection device 10 may rotate clockwise (RT) to correspond to the second object OBJ2 based on the device fixing part 600 . Accordingly, the spray nozzle NZ of the automatic disinfectant spray device 10 may be adjacent to the second object OBJ2, and the disinfectant sprayed from the automatic disinfectant spray device 10 is evenly sprayed on the second object OBJ2. It can be.

After disinfecting the second object OBJ2, if an object similar in size to the first object OBJ1 is disinfected again, the automatic disinfectant spray device 10 rotates counterclockwise to correspond to the first object OBJ1. to spray the disinfectant in the spraying direction (AD).

As described above, according to the automatic disinfectant injection device 10 according to an embodiment of the present invention, the rotation of the automatic disinfectant injection device 10 can be automatically controlled by the sensing value of the proximity sensor PS. By determining the spraying direction corresponding to the size of the object, the distance between the object and the spray nozzle NZ is optimized, and the disinfectant can be evenly sprayed on the object without unnecessary consumption of the disinfectant.

Referring back to FIG. 3 , the spray time controller 420 of the control board 400 may control the disinfectant supply unit 200 and the disinfectant spray unit 300 to operate for a preset time (disinfection time).

In one embodiment, the time to spray the disinfectant to the object (or disinfection time) may be changed according to the size of the object. For example, if the size of the object is large, it may be set to a long time so that the disinfectant is sufficiently sprayed to disinfect the object, and if the size of the object is small, it may be set to a relatively short time to prevent unnecessary consumption of the disinfectant. can However, the disinfection time is not limited thereto. In another embodiment, the disinfection time may be a time previously set by a device manager or may be set as a fixed time.

The lamp LP may emit light of various colors in response to a light emitting signal provided from the control board 400 . In one embodiment, the lamp LP may emit light of a first color (eg, green light) during the time when the disinfectant supply unit 200 and the disinfectant spray unit 300 operate to spray the disinfectant (disinfection time). have.

In addition, when the object to be disinfected departs from the disinfectant injection area within the disinfection time, the lamp LP may emit a second color light (eg, red light) to inform whether the object has departed.

Specifically, the control board 400 may check whether the object to be disinfected is detached through the proximity sensor PS. As described above, a corresponding disinfection time may be determined according to the size of the object to be disinfected, and the disinfectant supply unit 200 and the disinfectant spray unit 300 may operate during the disinfection time. During this disinfection time, when an object departs from the disinfectant spray area, the control board 400 may generate a departure signal and provide it to the lamp LP. The lamp LP emits light of a second color in response to the departure signal to inform an object or manager whether or not the user has departed.

Accordingly, when the lamp LP emits light of the second color, it can be known that the object to be disinfected has not been properly disinfected, and the object can be induced to perform the disinfection process again.

The speaker SPK may output various voices in response to voice signals provided from the control board 400 . In one embodiment, the speaker SPK guides the disinfection time corresponding to the object before the disinfectant supply unit 200 and the disinfectant spray unit 300 operate when the object approaches the automatic disinfectant spray device 10. Time guide voice can be output.

In addition, when the object to be disinfected departs from the disinfectant spraying area within the disinfection time, the speaker SPK may output a warning sound indicating that the object has departed from the disinfectant spraying area.

Similar to the lamp LP described above, the control board 400 may check whether the object to be disinfected is detached through the proximity sensor PS. During the disinfection time, when an object departs from the disinfectant spray area, the control board 400 may generate a departure signal and provide it to the speaker SPK. The speaker SPK outputs a warning sound in response to the departure signal to inform an object or a manager of the departure.

As described above, the automatic disinfectant injection device 10 according to an embodiment of the present invention includes the lamp LP and the speaker SPK to determine whether the automatic disinfectant injection device 10 operates and the state of the disinfectant target or manager. If the disinfection process is not completed due to deviation within the disinfection time, it can be induced to perform the disinfection process again.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

10: automatic disinfectant injection device 100: housing
101: side part 102: bottom part
200: disinfectant supply unit 250: supply control nozzle
300: disinfectant injection unit 310: ultrasonic generator
400: control board 410: injection angle adjusting unit
420: injection time control unit 500: outer housing
600: device fixing part AD, AD': spraying direction
LP: Ramp NZ: Spray Nozzle
OBJ1: first object OBJ2: second object
PS: proximity sensor PW: power supply
SPK: speaker

Claims (1)

A device for atomizing a disinfectant using ultrasonic waves indoors,
a disinfectant supply unit in which a disinfectant is stored;
a disinfectant spraying unit including an ultrasonic generator receiving the disinfectant from the disinfectant supply unit and generating ultrasonic waves to atomize the disinfectant, and at least one spray nozzle spraying the disinfectant atomized in the form of fine particles;
a housing in which the disinfectant supply unit and the disinfectant spray unit are accommodated;
an outer housing disposed outside the housing and rotatably coupled to a device fixing unit installed on a ceiling of a building or an upper end of a doorway;
a proximity sensor installed on one side of the housing to detect an object approaching the disinfectant injection unit; and
Including a control board installed in the housing to control the disinfectant supply unit and the disinfectant spray unit,
The disinfectant injection unit is controlled to operate when the object is adjacent within a predetermined distance,
The disinfectant spray unit includes four spray nozzles,
The ultrasonic generator is made of piezoelectric ceramic,
Further comprising a supply control nozzle connected between the disinfectant supply unit and the disinfectant spray unit,
The control board further includes an injection time adjusting unit,
The spraying time adjusting unit adjusts the supply control nozzle so that the disinfectant is supplied to the disinfectant spraying unit for a predetermined disinfection time,
The proximity sensor is configured to measure a distance between the disinfectant injection unit and the object and a size of the object,
The disinfection time is set in proportion to the size of the object measured by the proximity sensor,
The control board includes a spray angle adjusting unit for adjusting a spray angle of the disinfectant spray unit in response to the size of the object according to a sensing value of the proximity sensor,
Further comprising a lamp installed on one side of the housing and electrically connected to the control board,
The lamp is configured to emit light of a first color during a period in which the disinfectant spraying unit sprays the disinfectant to the object,
When it is determined that the object has departed from the disinfectant sprayer within the disinfection time by measuring the distance between the disinfectant sprayer and the object through the proximity sensor, the lamp has a second color different from the first color. emit light,
Further comprising a speaker installed on one side of the housing and electrically connected to the control board,
The speaker is configured to output a disinfection time guidance voice for guiding the disinfection time before the disinfectant injection unit operates,
When it is determined that the object has departed from the disinfectant injection unit within the disinfection time, the speaker outputs a warning sound informing of the object's departure;
The control board controls the amount of atomization of the disinfectant by adjusting the frequency of the ultrasonic generator,
Disinfectant atomization device using ultrasonic waves.

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