KR20220154526A - Ipl device - Google Patents

Abstract

An IPL device for sterilizing by irradiating pulsed light to an object according to an embodiment comprises: a xenon lamp for outputting pulsed light in an ionized state; a capacitor charged with electric energy for applying a voltage to the xenon lamp; a pulse driver for pulsing by applying a voltage from the capacitor to the xenon lamp to output pulsed light from the xenon lamp; and a control unit for changing an operating state of the IPL device during a power-on period based on the distance to the target object. When the distance to the object is less than a predetermined distance, the control unit maintains a sterilization operation state of outputting pulsed light by pulsing the xenon lamp through the pulse driver. When the distance to the object is greater than or equal to a predetermined distance, the control unit does not pulse the xenon lamp through the pulse driver, and maintains a sterilization standby state in which a predetermined electric energy is charged into the capacitor to output pulsed light for sterilization.

Description

IPL device {IPL DEVICE}

An embodiment provides an IPL device.

Recently, as the virus problem has emerged as a serious problem worldwide, interest in sterilization is increasing. Most of the conventional sterilization devices use ultraviolet light sources, but in the case of sterilization devices using ultraviolet light, it takes a lot of time for sterilization, so sterilization is hardly achieved by irradiation of ultraviolet rays for a short time, and the ultraviolet light used is harmful to the human body. There are downsides.

In order to compensate for the disadvantages of the sterilization device using such ultraviolet light, an intense pulsed light (IPL) sterilization device is being developed as a sterilization device. The IPL sterilization device is a device that sterilizes the object to be sterilized by irradiating light of strong intensity in the form of short pulses to the object to be sterilized. By killing microorganisms, viruses, etc. on the surface of the cells, the objects to be sterilized are sterilized. However, these IPL sterilization devices are not popularized due to slow technological development compared to ultraviolet sterilization devices.

Therefore, it is necessary to develop a technology for a sterilization device for sterilizing an object to be sterilized using IPL.

The embodiment provides an IPL device for sterilizing a target sterilization body using IPL technology.

An embodiment provides an IPL device that controls a sterilization standby state and an operating state based on a distance from an object.

The problem to be solved in the present application is not limited to the above-described problem, and problems not mentioned will be clearly understood by those skilled in the art from this specification and the accompanying drawings. .

An IPL device for sterilizing an object by irradiating pulsed light to an object according to an embodiment includes a xenon lamp for outputting pulsed light in an ionized state; a capacitor charged with electric energy for applying a voltage to the xenon lamp; a pulse driver for pulsing by applying a voltage from the capacitor to the xenon lamp to output pulsed light from the xenon lamp; and a controller configured to change an operating state of the IPL device during a power-on period based on the distance to the target object, wherein the controller controls the pulse driver when the distance to the target object is less than a predetermined distance. Pulsed light output for sterilization without pulsing the xenon lamp through the pulse driver when the distance to the object is greater than or equal to a predetermined distance. For this purpose, a sterilization standby state is maintained in which predetermined electric energy is charged in the capacitor.

An IPL device for sterilizing an object by irradiating pulsed light to an object according to an embodiment includes a xenon lamp for outputting pulsed light in an ionized state; a capacitor charged with electric energy for applying a voltage to the xenon lamp; a pulse driver for pulsing by applying a voltage from the capacitor to the xenon lamp to output pulsed light from the xenon lamp; a simmer driver providing a predetermined current to the xenon lamp so that the xenon lamp maintains the ionized state; and a controller configured to change an operating state of the IPL device during a power-on period based on the distance to the target object, wherein the controller controls the pulse driver when the distance to the target object is less than a predetermined distance. pulsing the xenon lamp to maintain a sterilization operation state of outputting pulsed light, and when the distance to the object is greater than or equal to a predetermined distance, the xenon lamp is not pulsed through the pulse driver, but the simmer driver It maintains the sterilization standby state that maintains the simmer state of the xenon lamp.

The solutions to the problems of the present invention are not limited to the above-described solutions, and solutions not mentioned will be clearly understood by those skilled in the art from this specification and the accompanying drawings. You will be able to.

The IPL device according to the embodiment can efficiently sterilize a sterilized body in a short time harmlessly to the human body using IPL technology.

The IPL device according to the embodiment maintains an operating state when the distance from the object is less than a certain range, and operates in a sterilization standby state when the distance is greater than a certain distance, thereby preventing the output light from being irradiated to the user. Safer sterilization action can be performed.

The effects of the present application are not limited to the above-mentioned effects, and effects not mentioned will be clearly understood by those skilled in the art from this specification and the accompanying drawings.

1 to 3 are views for explaining an IPL sterilization device according to an embodiment.
4 is a circuit diagram showing the circuit unit 140 of the IPL sterilization device according to the first embodiment.
5 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the first embodiment is in a charged state.
6 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the first embodiment is in a charged state.
7 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the first embodiment is in a light emitting state.
8 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the first embodiment is in a light emitting state.
9 is a view showing a sensor unit according to the first embodiment.
10 is a flowchart showing the operation of the IPL sterilization device according to the first embodiment.
11 is a waveform diagram related to the operation of the IPL sterilization device according to the first embodiment.
12 is a flowchart showing the operation of the IPL sterilization device according to the second embodiment.
13 is a waveform diagram related to the operation of the IPL sterilization device according to the second embodiment.
14 is a diagram showing a circuit part of an IPL sterilization device according to a third embodiment.
15 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the third embodiment is in a charged state.
16 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the third embodiment is in a charged state.
17 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the third embodiment is in a light emitting state.
18 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the third embodiment is in a light emitting state.
19 is a waveform diagram related to the operation of the IPL sterilization device according to the third embodiment.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. However, the present invention can apply various changes and can have various embodiments. Hereinafter, specific embodiments will be illustrated in the drawings and described in detail.

In the drawings, the thickness of layers and regions is exaggerated for clarity, and elements or layers may be "on" or "on" other elements or layers. What is referred to includes all cases where another layer or other component is intervened in the middle as well as immediately above another component or layer. Like reference numerals designate essentially like elements throughout the specification. In addition, components having the same function within the scope of the same idea appearing in the drawings of each embodiment are described using the same reference numerals.

If it is determined that a detailed description of a known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, numbers (eg, first, second, etc.) used in the description process of this specification are only identifiers for distinguishing one component from another component.

In addition, the suffixes "module" and "unit" for the components used in the following description are given or used together in consideration of ease of writing the specification, and do not have meanings or roles that are distinguished from each other by themselves.

An IPL device for sterilizing an object by irradiating pulsed light to an object according to an embodiment includes a xenon lamp for outputting pulsed light in an ionized state; a capacitor charged with electric energy for applying a voltage to the xenon lamp; a pulse driver for pulsing by applying a voltage from the capacitor to the xenon lamp to output pulsed light from the xenon lamp; and a controller configured to change an operating state of the IPL device during a power-on period based on the distance to the target object, wherein the controller controls the pulse driver when the distance to the target object is less than a predetermined distance. Pulsed light output for sterilization without pulsing the xenon lamp through the pulse driver when the distance to the object is greater than or equal to a predetermined distance. For this purpose, a sterilization standby state is maintained in which predetermined electric energy is charged in the capacitor.

The capacitor may be discharged by a voltage applied to the xenon lamp through the pulse driver.

The control unit may control to apply voltage from the capacitor to the xenon lamp when the distance to the object is less than a predetermined distance and the operation switch is pressed.

The sterilization standby state may include a charging step of charging the capacitor with a voltage and a maintenance step of maintaining the voltage of the capacitor.

The control unit may terminate the sterilization standby state when the sterilization standby state is maintained for a specific time or longer.

The control unit may maintain the sterilization standby state when the distance to the object is less than a predetermined distance and the charge amount of the capacitor is less than a predetermined value.

A switch for controlling charging of the electrical energy into the capacitor may be further included, and the switch and the pulse driver may alternately output a high level.

An IPL device for sterilizing an object by irradiating pulsed light to an object according to an embodiment includes a xenon lamp for outputting pulsed light in an ionized state; a capacitor charged with electric energy for applying a voltage to the xenon lamp; a pulse driver for pulsing by applying a voltage from the capacitor to the xenon lamp to output pulsed light from the xenon lamp; a simmer driver providing a predetermined current to the xenon lamp so that the xenon lamp maintains the ionized state; and a controller configured to change an operating state of the IPL device during a power-on period based on the distance to the target object, wherein the controller controls the pulse driver when the distance to the target object is less than a predetermined distance. pulsing the xenon lamp to maintain a sterilization operation state of outputting pulsed light, and when the distance to the object is greater than or equal to a predetermined distance, the xenon lamp is not pulsed through the pulse driver, but the simmer driver It maintains the sterilization standby state that maintains the simmer state of the xenon lamp.

The xenon lamp performs a pre-emission operation when in a dark state, and the amount of light output in the pre-emission operation may be smaller than the amount of light output in the sterilization operation state.

The simmer driving unit may maintain connection with the xenon lamp regardless of a change in an operating state by the control unit.

The control unit may control the amount of output light of the xenon lamp according to the high level holding time of the pulse output from the pulse driving unit.

Depending on the amount of light output by the sterilization operation state, the amount of charge charged in the capacitor after outputting the pulsed light may have a different amount of charge.

A high level holding time of the pulse may be determined according to a user input.

The control unit may terminate the sterilization standby state when the sterilization standby state is maintained for a specific time or longer.

Hereinafter, an IPL device according to an embodiment will be described with reference to the drawings.

1 to 3 are views for explaining the IPL sterilization device according to the first embodiment.

1 and 2, the IPL sterilization device 100 includes a body 101, a handle 102, a power supply 110, a capacitor 120, a lamp 130, a circuit unit 140, a sensor unit ( 150), an output unit 160, an input unit 170, and a controller 180. The arrangement of the components is not limited to that shown in FIG. 1 , and the components may be arranged in any position to perform the functions they impart to the IPL sterilization device 100 .

The body 101 may be implemented in various shapes. For example, the body 101 may be formed in a T-shaped type as a whole. Of course, the body 101 may be implemented in various shapes such as an I-shape and a rectangular parallelepiped.

A handle 102 may be disposed on the body 101 so that a user can pick it up when using the IPL sterilization device 100. For example, the body 101 may include a first body portion 101a in which the handle 102 is installed and a second body portion 101b in which a lamp 130 for sterilization is installed. For example, the user picks up the IPL sterilization device 100 through the handle 102, places the second body part 101b where the lamp 130 is installed close to the area or object to be sterilized, and Sterilization may be performed by outputting pulsed light through.

Components of the IPL sterilization device 100 may be disposed on the body 101. For example, a lamp 130 , an output unit 160 , a handle 102 , and the like may be installed in the body 101 . In addition, in the body 101, components such as the power supply unit 110, the capacitor 120, the circuit unit 140, the sensor unit 150, and the controller 180, which are not shown in the drawings, are also present inside or outside the body 101. can be installed on Of course, it is not limited to the above-described description, such that each component can be installed inside or outside the handle 102.

The IPL sterilization device 100 may include a wheel 191 in one area of the second body portion 101b so as to maintain contact with the object to be sterilized and move easily. For example, the wheel 191 may be disposed under the second body part 101b or in one area of the light guide part 131 .

Referring to FIG. 3 (a), which is a schematic cross-sectional view of the IPL sterilization device 100, the wheel 191 disposed under the second body portion 101b is rotated by the user's force in contact with the area to be sterilized. can do. For example, the wheel 191 may be formed in a structure in which light output from the lamp 130 does not leak to the outside. Specifically, the wheel 191 may be formed in a structure that protrudes and encloses a certain portion of the light guide unit 131 . Here, a plurality of wheels 191 may be used to surround the light guide unit 131, or wheels having a large area to surround the light guide unit 131 may be used.

If the pulsed light output to the extent that the IPL sterilization device 100 outputs pulsed light of strong intensity for sterilization leaks to the outside, the user's eyes may be dazzled when the IPL sterilization device 100 is used for sterilization, and momentarily Light of strong intensity may be applied to the user's eyes and may be harmful to eye health. The IPL sterilization device 100 may include a light blocking unit 190 disposed in one region of the body 101 to reduce leakage of pulsed light output from the lamp 130 to the outside. For example, the light blocking portion 190 may be disposed to surround the lower portion of the body 101 . In addition, the light blocking unit 190 may be integrally formed with the light guide unit 131 to be described later.

Optionally, a wheel 191 may be installed at one end of the light blocking unit 190 so as to maintain contact with the object to be sterilized and move easily. For example, the light blocking unit 190 is formed of a structure capable of accommodating the wheel 191 (for example, a concave groove the size of the wheel 191), and prevents light from leaking to the outside. Wheels 191 having a size suitable for the secured space may be installed to alleviate the problem. In other words, leakage of light output from the lamp 130 to the outside can be prevented by the light blocking unit 190 and the wheel 191 . Referring to FIG. 3(b), which is a schematic cross-sectional view of the IPL sterilization device 100, the wheel 191 disposed at one end of the light blocking unit 190 is rotated by the user's force in contact with the area to be sterilized. can do.

The body 101 is not limited to the above description, such as additionally provided with a bumper (not shown) that absorbs impact.

The power supply 110 may provide current so that at least one component of the IPL sterilization device 100 is driven. For example, the power supply unit 110 operates the capacitor 120, the lamp 130, the circuit unit 140, the sensor unit 150, the output unit 160, the input unit 170, the controller 180, and the like. current can be provided.

The power supply unit 110 may receive external power or internal power under the control of the controller 180 and supply power to each component included in the IPL sterilization device 100. For example, the power supply 110 may include a battery, and the battery may be a built-in battery or a replaceable battery.

For another example, it may be implemented in a form of providing current so that the IPL sterilization device 100 operates by connecting a power plug independently provided on one side of the IPL sterilization device 100 to an outlet.

As the power supply unit 110, since a normal power supply unit may be used, a detailed description thereof will be omitted.

The capacitor 120 may store electrical energy charged by the capacitor charger 143 . As the capacitor 120, a typical capacitor generally used in a circuit may be used, and a detailed description thereof will be omitted.

The lamp 130 may output pulsed light. For example, the lamp 130 can sterilize the sterilized body in the area to be sterilized by outputting strong pulsed light in the form of a short pulse, that is, intense pulsed light (IPL).

The lamp 130 may emit light of multiple wavelengths. For example, the lamp 130 may receive electrical energy and output light having a wavelength including a visible light band. For example, the lamp 130 may emit light of a complex wavelength of 400-1200 nm rather than light of a single wavelength. Various filters are used in the lamp 130 to emit light of a desired wavelength range.

The lamp 130 is disposed in one region of the body 101, and can irradiate pulsed light in the visible ray region wavelength range of 400 to 1200 nm to the object to be sterilized. For example, the lamp 130 may be provided as a flash lamp such as a xenon lamp, and may emit light using supplied electrical energy. Of course, the lamp 130 may be made of an incandescent lamp, a xenon lamp, a laser diode, an LED, or a combination of two or more of these and others, and is not limited thereto.

A light guide unit 131 for guiding the pulsed light output from the lamp 130 may be disposed around the lamp 130 . For example, the light guide unit 131 may be disposed in a region around the lamp 130 and guide the pulsed light output from the lamp 130 to irradiate at least some region of the object to be sterilized. . To this end, the light guide unit 131 may be formed to extend around the lamp 130 by a predetermined length so that a part thereof protrudes.

The light guide unit 131 may be implemented in various shapes. For example, the light guide unit 131 may have a concave shape toward the lamp 130 . For example, the light guide unit 131 may be formed in a U-shaped structure so that the lamp 130 may be provided in an internal space to guide the light output from the lamp 130 . Here, one end of the light guide part 131 may protrude more toward the area to be sterilized than the lamp 130 .

In addition, a reflective surface may be formed on the light guide unit 131 . For example, the reflective surface may be installed behind the lamp 130 to reflect the light output from the lamp 130 so as to reach the object to be sterilized. For another example, the reflective surface may be installed in a shape in which light output from the lamp 130 is collected toward the object to be sterilized. The light guide unit 131 can easily reach the object to be sterilized by the light output from the lamp 130, so that the object to be sterilized can be effectively sterilized.

The circuit unit 140 may control pulsed light output through the lamp 130 in various ways. A detailed configuration and operation of the circuit unit 140 will be described below.

The sensor unit 150 may include various sensors for detecting the surrounding environment of the IPL sterilization device 100 or the state of the IPL sterilization device 100 . A detailed configuration and operation of the sensor unit 150 will be described below.

The output unit 160 may output information related to the state of the IPL sterilization device 100. For example, the output unit 160 may include an indicator that externally indicates information related to the state of the IPL sterilization device 100 in various ways. For example, the indicator may be implemented as an LED lamp, a speaker, a motor, a haptic device, a vibrator, or a signal output circuit. The indicator may visually or audibly output a start notification, an end notification, a notification when a condition is abnormal, or the like during a sterilization operation or cleaning operation. The indicator may be installed on the second body part 101b to guide the sterilization area.

In addition, the output unit 160 may include an LCD, OLED, AMOLED display, and the like. Here, when the output unit 160 is provided as a touch screen, the output unit 160 may perform the function of the input unit 170. In this case, a separate input unit 170 may not be provided according to selection, and an input unit 170 performing limited functions such as volume control, power button, and home button may be provided.

The input unit 170 may obtain a signal corresponding to a user's input. For example, the input unit 170 may receive a user's input for performing a sterilization operation or a cleaning operation. For example, the input unit 170 may receive a user's input related to power on/off, sterilization operation or cleaning operation mode, intensity, time, and pattern.

Also, the input unit 170 may include a keyboard, keypad, button, jog shuttle, wheel, and the like. Also, the user's input in the input unit 170 may be, for example, button press, touch, and drag. Also, when the output unit 160 is implemented as a touch screen, the output unit 160 may serve as the input unit 170.

According to one embodiment, the input unit 170 may be configured as a separate module connected to the IPL sterilization device 100 wirelessly or wired. For example, the IPL sterilization device 100 may receive an input for sterilization or cleaning from a user through an input unit 170 composed of a separate module given to the user's hand. For example, the IPL sterilization device 100 may receive an input for sterilization or cleaning from a mobile terminal, and in this case, the IPL sterilization device 100 may include a separate communication unit (not shown). Here, the mobile terminal includes a desktop PC, a mobile phone, a smart phone, a laptop computer, a personal digital assistant (PDA), a portable multimedia player (PMP), a slate PC, and a tablet PC. ), ultrabooks, wearable devices, and the like.

The controller 180 may control each component of the IPL sterilization device 100 or process and calculate various types of information. For example, the controller 180 may control the capacitor 120, the lamp 130, the circuit unit 140, and the like so that the IPL sterilization device 100 outputs pulsed light to sterilize objects to be sterilized.

The controller 180 may be implemented in software, hardware, or a combination thereof. For example, in terms of hardware, the controller 130 may be implemented with a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a semiconductor chip, or other various types of electronic circuits. Also, for example, In terms of software, the controller 180 may be implemented in a logic program executed according to the above-described hardware or various computer languages, etc. In addition, the controller 180 may be a microprocessor, a microcontroller, a digital signal processing device (DSP), or the like. It may be of any type including, but not limited to, any combination.

In the following description, it can be understood that the operation of the IPL sterilization device 100 is performed under the control of the controller 180 unless otherwise noted.

4 is a circuit diagram showing the circuit unit 140 of the IPL sterilization device according to the first embodiment.

The circuit unit 140 may be a circuit diagram for performing trigger driving. The circuit unit 140 may be connected to the power supply unit 110 and output a trigger voltage to the lamp 130 .

The circuit unit 140 may be electrically connected to the power supply unit 110 , the capacitor 120 and the lamp 130 .

The circuit unit 140 may include a first switch 141 , a second switch 143 and a diode 145 .

The first switch 141 may be connected between the power supply 110 and the capacitor 120 . The first switch 141 may connect the power supply 110 and the capacitor 120 in parallel.

The second switch 143 may be connected between the capacitor 120 and the lamp 130 . The second switch 143 may connect the capacitor 120 and the lamp 130 in parallel.

The diode 145 may be connected between the second switch 143 and the lamp 130 . The diode 145 may be connected in parallel with the lamp 130 . The diode 145 is connected in parallel with the lamp 130 to prevent a reverse voltage or current from flowing through the lamp 130, thereby protecting the lamp 130.

A short circuit of the first switch 141 and the second switch 143 may be controlled by a switching signal. The first switch 141 and the second switch 143 may be controlled by a control signal output from the controller 180 .

The first switch 141 may be controlled by a first switching signal SW1, and the second switch 143 may be controlled by a second switching signal SW2. The first switching signal SW1 and the second switching signal SW2 may be output from the controller 180 .

The first switch 141 may electrically connect one end of the power supply 110 and one end of the capacitor 120 when the first switching signal SW1 is at a high level. The first switch 141 may be opened so that one end of the power supply 110 and one end of the capacitor 120 are not electrically connected when the first switching signal SW1 is at a low level.

The second switch 143 may electrically connect one end of the capacitor 120 and one end of the lamp 130 when the first switching signal SW1 is at a high level. The second switch 143 may be opened so that one end of the capacitor 120 and one end of the lamp 130 are not electrically connected when the second switching signal SW2 is at a low level.

Since the second switch 143 outputs pulses to the lamp 130 by opening and shorting, it can serve as a pulse driver. When the lamp 130 is a xenon lamp, the xenon lamp may output pulsed light by the pulse.

5 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the first embodiment is in a charged state. 6 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the first embodiment is in a charged state.

Referring to FIGS. 5 and 6 , when the circuit unit 140 according to the first embodiment is in a charged state, the power supply unit 110 and the capacitor 120 may be connected.

The controller 180 applies the first switching signal SW1 at a high level and the second switching signal SW2 at a low level.

The first switch 141 is closed based on the first switching signal SW1 of a high level, and the second switch 143 is open based on the second switching signal SW2 of a low level.

The power supply 110 is electrically connected to the capacitor 120 by the short-circuited first switch 141, and the charging current Ic from the power supply 110 flows into the capacitor 120. The capacitor 120 is charged. The capacitor 120 may be charged by the charging current Ic. The capacitor 120 may be charged while having an RC delay, and may be charged up to the maximum charging voltage (Vamx). At this time, the second switch 143 is open, no voltage is applied to the lamp 130, and the lamp 130 maintains a non-emitting state.

The controller 180 may detect the amount of charge of the capacitor 120 . The controller 180 may detect the charged amount of the capacitor 120 by directly measuring the voltage of the capacitor 120, and the charging current Ic flowing from the power supply 110 to the capacitor 120 The amount of charge of the capacitor 120 may be detected by sensing, or the amount of charge of the capacitor 120 may be sensed by monitoring the current or voltage output from the power supply 110 . When the power supply 110 is a battery, the controller 180 may detect the charge amount of the capacitor 120 by detecting the remaining amount of the battery or a change in the remaining amount of the battery.

When the controller 180 detects that the capacitor 120 is charged up to the maximum charging voltage Vmax, the controller 180 may control the charging current Ic to prevent the capacitor 120 from flowing any further. When the controller 180 detects that the capacitor 120 is charged up to the maximum charging voltage Vmax, the controller 180 opens the first switch 141 to control the capacitor 120 to be no longer charged.

The controller 180 may control the charging voltage of the capacitor 120 to have a certain range. The controller 180 can control the first switching signal SW1 so that the charging voltage of the capacitor 120 has a certain range. The controller 180 changes the first switching signal SW1 to a low level when the capacitor 120 has a maximum charge amount, and when the charge amount of the capacitor 120 is less than a predetermined value, the first switching signal By changing (SW1) to a high level, the amount of charge of the capacitor 120 can be controlled. In this case, the predetermined value may be a voltage when the lamp 130 has a minimum charge amount for normal operation.

7 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the first embodiment is in a light emitting state. 8 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the first embodiment is in a light emitting state.

Referring to FIGS. 7 and 8 , when the circuit unit 140 according to the first embodiment is in a light emitting state, the capacitor 120 and the lamp 130 may be connected.

The controller 180 applies the second switching signal SW2 with a high level and the first switching signal SW1 with a low level.

The second switch 143 is closed based on the high level of the second switching signal SW2, and the first switch 141 is opened based on the low level of the first switching signal SW1.

The capacitor 120 is connected to the lamp 130 by the short-circuited second switch 143, and the driving current Id from the capacitor 120 flows to the lamp 130 to form the lamp 130. ) can work.

A high voltage (for example, about 10,000 to 20,000 volts) charged in the capacitor 120 is applied between the anode and the cathode of the lamp 130 to ionize the gas inside the tube of the lamp 130 into a plasma state. can The ionized gas rapidly forms a discharge path for a high voltage to make the lamp 130 lit.

The lamp 130 can output light having the maximum amount of light. The maximum amount of light at this time may be the amount of light capable of sterilizing the object.

The lamp 130 may emit light until the charge amount of the capacitor 120 disappears. The lamp 130 may emit light until the charge amount of the capacitor 120 becomes zero. Here, the case where the charge amount becomes 0 has been described as an example, but the light emission end point of the lamp 130 may include a case where the charge amount is not 0 but less than a certain value.

The controller 180 may detect the amount of charge of the capacitor 120 . The controller 180 may detect the charged amount of the capacitor 120 by directly measuring the voltage of the capacitor 120, or detect the driving current Id flowing from the capacitor 120 to the lamp 130. By doing so, the charged amount of the capacitor 120 may be detected, or by measuring the voltage of the lamp 130, the charged amount of the capacitor 120 may be sensed.

When the controller 180 detects that the capacitor 120 is discharged to a minimum voltage, the controller 180 may control to prevent the driving current Id from flowing to the lamp 130 any more. When the controller 180 detects that the capacitor 120 is discharged to a minimum voltage, the controller 180 opens the second switch 143 to control the capacitor 120 not to be discharged any more.

The controller 180 may control the capacitor 120 to be charged when the capacitor 120 is discharged. The controller 180 may control the capacitor 120 to be charged again by controlling the first switching signal SW1 and the second switching signal SW2.

That is, when the capacitor 120 is discharged, the controller 180 can change the circuit unit 140 to a charged state.

9 is a view showing a sensor unit according to the first embodiment.

Referring to FIG. 9 , the sensor unit 150 according to the first embodiment may include various sensors for detecting the surrounding environment of the IPL sterilization device 100 or the state of the IPL sterilization device 100 .

For example, the sensor unit 150 may include a motion sensor 150a for detecting a motion of the IPL sterilization device 100. For example, the motion sensor 150a may be implemented as an acceleration sensor, a gyro sensor, or a geomagnetic sensor disposed inside or outside the IPL sterilization device 100. The IPL sterilization device 100 may be controlled based on a sensing value obtained through the motion sensor 150a. Alternatively, the IPL sterilization device 100 may further include a wheel 191, and the sensor unit 150 may measure the number of revolutions of the wheel 191. The controller 180 may calculate the movement (eg, movement speed, rotation, etc.) of the IPL sterilization device 100 based on the number of revolutions of the wheel 191 measured by the sensor unit 150. Specifically, when the wheels 191 of the IPL sterilization device 100 are disposed as a pair on the left and right sides, the controller 180 based on the number of revolutions of the left and right wheels 191 measured through the sensor unit 150 rotation can be determined. For example, when the number of revolutions of the left and right wheels 191 of the IPL sterilization device 100 is the same, the controller 180 determines that the movement is straight, and the number of revolutions of the left and right wheels 191 of the IPL sterilization device 100 is different. The controller 180 may determine that a rotational movement is performed.

For another example, the sensor unit 150 may include a state detection sensor 150b for detecting the state of the object to be sterilized. For example, the state detection sensor 150b may be implemented as an illuminance sensor for detecting the illuminance of an object to be sterilized, a temperature sensor for detecting the temperature of the object to be sterilized, and the like. The IPL sterilization device 100 may be controlled based on a sensing value obtained through the state detection sensor 140b.

For another example, the sensor unit 150 may include a tilt sensor 150c that detects when the body 101 is turned over or tilted. For example, the IPL sterilization device 100 may be controlled based on a sensing value obtained through the inclination sensor 150c.

For another example, the sensor unit 150 may include a contact sensor 150d that detects when a part of the IPL sterilization device 100 has poor contact with the object to be sterilized. For example, the IPL sterilization device 100 may be controlled based on a sensing value obtained through the contact sensor 150d.

For another example, the sensor unit 150 may include a temperature sensor 150e for sensing the temperature of the IPL sterilization device 100. For example, the temperature sensor 150e may be disposed inside or outside the body 101 to control the IPL sterilization device 100 so that the temperature of the IPL sterilization device 100 does not become excessively high. That is, the IPL sterilization device 100 may be changed from an operating state to a standby state to be described later when a specific temperature or higher is detected by the temperature sensor 150e.

For another example, the sensor unit 150 may include a distance sensor 150f for detecting a distance between a part of the IPL sterilization device 100 and an object to be sterilized. For example, the distance sensor 150f may be disposed inside or outside to detect the distance between the lamp 130 and the object to be sterilized. The IPL sterilization device 100 may be controlled based on a sensing value obtained through the distance sensor 150f. The distance sensor 150f is installed on at least one surface of the housing in contact with the object, and can measure the distance to the object in contact with the IPL sterilization device 100.

The sensor unit 150 may output a sensor signal representing a voltage reflecting a sensed value. Alternatively, the sensor unit 150 may be configured to compare the sensed value with a preset threshold value and output a sensor signal when the sensed value exceeds the preset threshold value.

Of course, the sensor unit 150 may be implemented differently, such as including a pressure sensor, etc., and is not limited to the above description.

In addition, the controller 180 may not use the sensed value of the sensor unit 150 when it can independently check the information sensed by the sensor unit 150 .

10 is a flowchart showing the operation of the IPL sterilization device according to the first embodiment, and FIG. 11 is a waveform diagram related to the operation of the IPL sterilization device according to the first embodiment.

Referring to FIG. 10 , the IPL sterilization device according to the first embodiment may include a power ON step (S110), a sterilization standby step (S130), a safety distance determination step (S150), and a sterilization operation step (S170).

The power of the IPL sterilization device may be turned on. (S110)

The power of the IPL sterilization device 100 may be turned on by a user's control. The IPL sterilization device 100 may be powered on by a user's input through the input unit 170.

When the power of the IPL sterilization device 100 is turned on, the IPL sterilization device operates in a sterilization standby state. (S130)

In the sterilization standby state, the IPL sterilization device 100 measures the distance d from the object. The IPL sterilization device 100 may measure the distance d from the target object by the distance sensor 150f. The IPL sterilization device 100 may continuously measure the distance after the power of the IPL sterilization device 100 is turned on. The IPL sterilization device 100 may control the sterilization operation based on the distance d from the subject. In the drawings, the IPL sterilization device 100 measures the distance to the target object as an example, but the sterilization operation may be controlled based on the contact through the contact sensor 150d. In addition, the sterilization operation can be controlled based on whether the IPL sterilization device 100 is in an operating state or a stationary state through the motion sensor 150a.

When the IPL sterilization device 100 is in a standby state, the controller 180 may control the capacitor 120 to be charged.

The controller 180 outputs the first switching signal SW1 at a high level to make the first switch 141 short-circuited, and outputs the second switching signal SW2 at a low level to 2 switch 143 can be made open. As a result, the charging current Ic from the power supply 110 is supplied to the capacitor 120 .

When the charging voltage Vc of the capacitor 120 reaches the maximum charging voltage Vmax, the controller 180 outputs the first switching signal SW1 at a low level, and the first switch 141 open the Thereafter, when the voltage of the capacitor 120 is changed below a predetermined value due to natural discharge, the first switching signal SW1 is output to a high level again, and the capacitor 120 is charged again. This process is defined as a maintenance step (M), and the controller 180 controls the charging voltage of the capacitor 120 to be maintained within a certain range. However, this maintenance step may be omitted, and if the maintenance step is omitted, in the standby state, the controller 180 outputs the first switching signal SW1 to a high level, thereby putting the first switch 141 in a short-circuit state. , so that the voltage of the power supply 110 is continuously applied to the capacitor 120 during the standby state.

The IPL sterilization device 100 determines whether the distance from the target object is within the safe distance in the standby state. (S150)

Here, whether or not it is within the safety distance can be determined through the contact sensor 150d as described above, and when the IPL sterilization device 100 and the object come into contact with the contact sensor 150d, it is determined that it is within the safety distance, If there is no contact, it can be judged to be outside the safe distance.

In addition, whether or not it is within the safety distance is determined to be within the safety distance when the IPL sterilization device 100 is in motion through the motion sensor 150a as described above, and judged to be outside the safety distance when there is no motion. You may.

The IPL sterilization device 100 can operate only when it is within a safe distance, and has an effect of preventing sterilization light from being irradiated to the user.

The IPL sterilization device 100 continuously measures the distance (d) from the object, and when the distance (d) is less than the critical distance (dth), it is determined as a safe distance and performs a sterilization operation. (S170)

The IPL sterilization device 100 may repeat the light emitting state (E) and the charging state (C) in the course of operation. The IPL sterilization device 100 controls the lamp 130 to emit light through the connection shown in FIG. 7 in the case of the light emission state (E), and the capacitor (through the connection shown in FIG. 5 in the case of the charging state (C)) 120) can be controlled to be charged.

In the IPL sterilization device 100 according to the first embodiment, the controller 180 may alternately output the first switching signal SW1 and the second switching signal SW2. The controller 180 may control the first switch 141 and the second switch 143 to be alternately opened/shorted. The controller 180 controls to change to the charging state (C) when the light emitting state (E) ends, and to change to the light emitting state (E) when the charging state (C) is finished. can When in an operating state, the controller 180 may control the output of the lamp 130 to be repeated multiple times. The operating state is maintained only when the IPL sterilization device 100 is within a safe distance, and the operating state ends when the distance between the IPL sterilization device 100 and the object is not a safe distance.

The operating state may be initiated by a user input. That is, even when the IPL sterilization device 100 is within a safe distance, if there is no user input, it maintains a standby state, and if there is a user input, it is changed to an operating state, and the second switching signal SW2 first goes to a high level. can be output.

The operating state may be terminated by a user input. That is, even if the IPL sterilization device 100 is in an operating state, if an end command is input by a user input, the IPL sterilization device 100 may be changed to an end state.

When the distance (d) exceeds the critical distance, the IPL sterilization device 100 determines that it is not a safe distance and may return to the standby state. (S130)

The IPL sterilization device 100 can return to a charged state when the capacitor 120 is not charged in the standby state, and can operate in a maintenance state (M) when it is charged.

The IPL sterilization device 100 may terminate the IPL sterilization device 100 when the standby state continues. When the standby state is maintained for a predetermined time or longer, the controller may terminate the IPL sterilization device 100. Alternatively, when the output of the first switching signal (SW1) for the maintenance state (M) is repeatedly output a predetermined number of times, the controller may terminate the IPL sterilization device 100.

When the IPL sterilization device 100 is terminated, the charging voltage of the capacitor 120 may gradually decrease through natural discharge. Alternatively, the controller 180 may forcibly discharge the capacitor 120 by connecting the capacitor 120 and the lamp 130 when the IPL sterilization device 100 is terminated. In this case, the lamp 130 may instantaneously emit light to consume the amount of charge in the capacitor 120, or may consume the amount of charge according to the RC delay due to the resistance of the lamp 130 without light emission of the lamp 130. have.

12 is a flowchart showing the operation of the IPL sterilization device according to the second embodiment, and FIG. 13 is a waveform diagram related to the operation of the IPL sterilization device according to the second embodiment.

The IPL sterilization device according to the second embodiment is the same as the first embodiment except that a light emitting operation is performed when the operation switch is pressed compared to the first embodiment. Therefore, in describing the second embodiment, the same reference numerals are assigned to components common to those of the first embodiment, and detailed descriptions are omitted.

12 and 13, the IPL sterilization apparatus according to the second embodiment includes a power ON step (S210), a sterilization standby step (S230), an operating switch detection step (S240), a safety distance determination step (S250), and sterilization. An operation step (S270) may be included.

The power of the IPL sterilization device may be turned on. (S210)

When the power of the IPL sterilization device 100 is turned on, the IPL sterilization device operates in a sterilization standby state. (S230)

In the sterilization standby state, the IPL sterilization device charges (C) the capacitor 120 through the control of the first switching signal (SW1) and maintains the voltage of the capacitor 120 within a certain range. (M) is repeated.

The IPL sterilizer detects an operating switch. (S240)

The operating switch may be configured for user input. The operating switch may be implemented as the aforementioned input unit 170. The operating switch may be pressed by a user's intention.

The operation switch may be implemented as the same button as the switch for turning on the power. For example, the IPL sterilization device has one button, and when the button is pressed for the first time, it is determined that a power-on command is input, and when it is pressed after power-on, it is determined that an operation command is input, and a predetermined When it is pressed for a longer time than the time, it can be determined that an end command is input.

The IPL sterilization device 100 determines whether the distance to the object is within the safe distance when the operation switch is detected. (S250)

The IPL sterilization device 100 performs a sterilization operation by determining the distance (d) as a safe distance when the distance (d) is less than or equal to the critical distance (dth). (S270)

As shown in FIG. 12, the IPL sterilization device measures the distance only when the operation switch is detected, and can be controlled to perform the sterilization operation when it corresponds to the safe distance. In this case, there is an effect of reducing the number of distance measurements.

or. The IPL sterilization device may be controlled to continuously measure the distance as shown in FIG. 13, change to an operable state if it corresponds to the safety distance, and perform a light emitting operation when an operating switch is detected in an operable state.

The IPL sterilization device may perform a light emitting operation when the distance from the object is a safe distance and the operation switch is sensed.

The light emission operation may be performed by the controller 180 outputting the second switching signal SW2 at a high level. When the operation switch is pressed, the controller 180 can output the second switching signal SW2 at a high level after determining the state of charge of the capacitor 120 .

For example, in FIG. 13 , since the capacitor 120 is in a charged state when the first operation switch is pressed, the controller 180 performs the light emission operation E1 as soon as the operation switch is pressed. That is, the second switching signal SW2 is output at a high level and the first switching signal SW1 is output at a low level to control the lamp 130 to emit light.

When the capacitor 120 is discharged, the controller 180 controls the first switching signal SW1 in a state where the second switching signal SW2 is at a low level to perform a charging operation (C) and a maintenance operation (M). control to perform The charging operation (C) and the maintenance operation (M) may be defined as a standby state. Alternatively, the charging operation (C) and the maintenance operation (M) within the safety distance may be defined as the charging operation (C) and the maintenance operation (M) of operating states, but these are actual operations only with different names defining the state. is the same

In FIG. 13 , since the capacitor 120 is in a charged state when the second operation switch is pressed, the controller 180 performs a light emission operation E2 as soon as the operation switch is pressed. Even if the second operation switch is pressed at a slightly earlier time, the controller 180 maintains the voltage of the capacitor 120 in a state in which the light emitting operation is possible, so that the second operation switch is pressed and the light emitting operation (E2 ) can be performed. That is, the controller 180 maintains the voltage of the capacitor 120 in a state in which the light emitting operation is possible in the maintenance step (M), so that light emission is possible immediately.

The controller 180 may measure the charging voltage of the capacitor 120 when the operation switch is pressed, and perform a light emission operation when the charging voltage is equal to or greater than a predefined value. In this way, the reliability of the sterilization effect of the IPL sterilizer can be secured.

For example, when the operation switch is pressed during the charging operation of the capacitor 120, since the amount of charged charge of the capacitor 120 is small in the initial stage of the charging operation, the light emitting operation occurs when the charging voltage is equal to or greater than a predefined value. The timing can be controlled to perform That is, when the charging voltage is less than a predefined value, the light emitting operation can be controlled to be performed after the charging voltage reaches a predefined value or more through performing the charging operation. In addition, the controller 180 may control a light emitting operation to be performed when the charging operation is completed when the operation switch is pressed during the charging operation.

As a result, a time point when the operating switch is pressed and a time point when the controller 180 outputs the second switching signal SW2 at a high level to perform a light emitting operation may be different from each other. If the operation switch is pressed during the charging operation, the controller 180 may control the light emitting operation to be performed after the charging operation is completed.

In addition, when the operation switch is pressed multiple times while the charging operation is being performed, the controller 180 may recognize that only one operation switch is detected as valid operation switch detection and control to perform only one light emission operation. Thus, it is possible to limit the operation of the IPL sterilizer due to the wrong usage aspect.

In addition, when the operation switch is pressed multiple times while the charging operation is being performed, the controller 180 can control to perform the light-emitting operation by accumulating and counting the number of times the operation switch is pressed. However, even in this case, since the charging voltage of the capacitor 120 must be controlled to operate when the voltage exceeds a certain level, a plurality of light emitting operations may be performed with a time difference. Even if the operation switch is pressed multiple times, the IPL sterilizer continuously measures the distance and returns to the standby state if it is not within the safe distance. safety can be guaranteed.

When the distance (d) exceeds the critical distance (Dth), the IPL sterilization device 100 determines that it is not a safe distance and returns to the sterilization standby state. In addition, when the sterilization standby state continues, the controller 180 may terminate the IPL sterilization device 100.

14 is a diagram showing a circuit part of an IPL sterilization device according to a third embodiment.

The circuit unit 240 may be a circuit diagram for performing simmer driving. The circuit unit 240 may be connected to the power supply unit 210 to output a simmer voltage to the lamp 230 .

The circuit unit 240 may be electrically connected to the power supply unit 210 , the capacitor 220 and the lamp 230 .

The circuit unit 240 may include a first switch 241 , a second switch 243 , a diode 245 and a simmer driver 247 .

The first switch 241 may be connected between the power supply 210 and the capacitor 220 . The first switch 241 may connect the power supply 210 and the capacitor 220 in parallel.

The second switch 243 may be connected between the capacitor 220 and the simmer driver 247 . The second switch 243 may connect the capacitor 220 and the simmer driver 247 in parallel.

The diode 245 may be connected between the second switch 243 and the simmer driver 247 . The diode 245 may be connected in parallel with the simmer driver 247 . The diode 145 is connected in parallel with the simmer driver 247 to prevent reverse voltage or current from flowing between the simmer driver 247 and the lamp 230, thereby preventing the simmer driver 247 and the lamp 230 from flowing. ) can be protected.

The simmer driver 247 may be connected between the second switch 243 and the lamp 230 . The simmer driver 247 may include a transformer. The simmer driver 247 may supply voltage so that the lamp 230 may maintain a preliminary light emission state. The dimmer driving unit 247 may continuously apply a constant current to the lamp 230 so that the lamp 230 may maintain a preliminary light emission state. The preliminary light-emitting state may be a state of having a small amount of light emission based on energy lower than that of a light-emitting operation in which a high voltage is applied to the lamp 230 to emit light. The simmer driver 247 may provide a voltage capable of maintaining an ionized state of gas inside the tube of the lamp 130 in a plasma state. Since the lamp 230 maintains a pre-emission state by the simmer driver 247, the lamp 230 can emit light with a lower voltage compared to the first embodiment. In addition, there is an advantage in that the amount of light emitted by the lamp 230 can be controlled by controlling the timing of the driving voltage.

A short circuit of the first switch 241 and the second switch 243 may be controlled by a switching signal. The first switch 241 and the second switch 243 may be controlled by a control signal output from the controller 180 .

The first switch 241 may be controlled by a first switching signal SW1, and the second switch 243 may be controlled by a second switching signal SW2. The first switching signal SW1 and the second switching signal SW2 may be output from the controller 180 .

The first switch 241 may electrically connect one end of the power supply 210 and one end of the capacitor 220 when the first switching signal SW1 is at a high level. The first switch 241 may be opened so that one end of the power supply 210 and one end of the capacitor 220 are not electrically connected when the first switching signal SW1 is at a low level.

The second switch 243 may electrically connect one end of the capacitor 220 and one end of the simmer driver 247 when the first switching signal SW1 is at a high level. The second switch 243 may be opened so that one end of the capacitor 220 and one end of the simmer driver 247 are not electrically connected when the second switching signal SW2 is at a low level.

15 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the third embodiment is in a charged state. 16 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the third embodiment is in a charged state.

Referring to FIGS. 15 and 16 , when the circuit unit 240 according to the third embodiment is in a charged state, the power supply unit 210 and the capacitor 220 may be connected.

The first switch 141 is closed based on the first switching signal SW1 of a high level, and the second switch 143 is open based on the second switching signal SW2 of a low level.

The power supply 210 is electrically connected to the capacitor 220 by the short-circuited first switch 241, and the charging current Ic from the power supply 210 flows into the capacitor 220. The capacitor 220 is charged. The capacitor 220 may be charged by the charging current Ic. The capacitor 220 may be charged while having an RC delay, and may be charged up to the maximum charging voltage (Vamx). At this time, since the second switch 243 is open, the current of the capacitor 220 or the power supply unit 210 is not applied to the lamp 230 .

Charging and maintaining the charge of the capacitor 220 have the same characteristics as those of the first embodiment.

The simmer driver 247 maintains a state electrically connected to the lamp 230 . The simmer driving unit 247 may supply a holding current Im capable of maintaining the pre-emission state of the lamp 230 . Since the dimmer driver 247 supplies the sustain current Im to the lamp 230, the lamp 230 may maintain a pre-emission state having a light intensity of Lm.

A separate voltage may be supplied to the simmer driver 247 . The separate voltage may be supplied from the power supply 210, but is not limited thereto.

17 is a circuit diagram showing a case where the circuit part of the IPL sterilization device according to the third embodiment is in a light emitting state. 18 is a diagram showing a capacitor voltage and light output from a lamp when the IPL sterilization device according to the third embodiment is in a light emitting state.

Referring to FIGS. 17 and 18 , when the circuit unit 240 according to the third embodiment is in a light emitting state, the capacitor 220 may be connected to the simmer driver 247 and the lamp 230 .

The controller 180 applies the second switching signal SW2 with a high level and the first switching signal SW1 with a low level.

The second switch 243 is closed based on the high level second switching signal SW2, and the first switch 241 is opened based on the low level first switching signal SW1.

The capacitor 220 is connected to the lamp 230 and the simmer driver 247 by the short-circuited second switch 243, and the driving current Id from the capacitor 220 is connected to the lamp 230. Flow to the lamp 230 can be operated. Even at this time, the simmer driver 247 is electrically connected to the lamp 230, and current from the simmer driver 247 flows to the lamp 230.

A high voltage (for example, about 10,000 to 20,000 volts) charged in the capacitor 220 is applied between the anode and the cathode of the lamp 230 so that the gas inside the tube of the lamp 230 is further converted into a plasma state. can be ionized. The ionized gas rapidly forms a discharge passage for a high voltage to make the lamp 230 lit. The lighting may have a greater amount of light than that of the preliminary light emission.

The lamp 230 may output an amount of light capable of sterilizing an object.

The lamp 230 may output a controlled amount of light based on the second switching signal SW2. The lamp 230 may emit light in an amount corresponding to the discharge amount of the capacitor 220 to the capacitor 120 while the second switch 243 is short-circuited. That is, the lamp 230 may emit light for a time corresponding to an amount transferred from the capacitor 220 to the lamp 230 . In other words, the lamp 230 may maintain a light emission state for as long as the high level of the second switching signal SW2 is maintained. When the second switching signal SW2 is changed to a low level again, the lamp 230 may return to a pre-emission state.

By controlling the light emission amount of the lamp 230 by the second switching signal SW2, the IPL sterilization device according to the third embodiment can control the light emission amount. With this circuit configuration, it is possible to control the amount of light emitted according to the type of object and the degree of sterilization, so that power consumption can be reduced and a design more suitable for operating conditions is possible.

19 is a waveform diagram related to the operation of the IPL sterilization device according to the third embodiment.

In the IPL sterilizer according to the third embodiment, at least one of the operation steps of the first embodiment and the operation steps of the second embodiment may be applied. That is, since the operation sequence of the IPL sterilization device according to the third embodiment can operate in either the first embodiment or the second embodiment, a detailed description of the operation sequence is omitted.

When the power of the IPL sterilization device is turned on, the IPL sterilization device operates in a standby state.

In the standby state, the IPL sterilizer measures the distance (d) to the object. The IPL sterilization device may measure the distance d from the target object by the distance sensor 150f. The IPL sterilization device may continuously measure the distance after the power of the IPL sterilization device is turned on. The IPL sterilization device may control the sterilization operation based on the distance (d) from the subject.

In the standby state, the simmer driver 247 and the lamp 230 are connected, the holding current Im from the simmer driver 247 is supplied to the lamp, and the lamp 230 controls the amount of light Lm. The branch remains in a pre-illuminated state.

In the standby state, the controller 180 may charge the capacitor 220 and control to maintain the charged state.

In the standby state, when the distance (d) is a safe distance, the IPL sterilization device may automatically perform a light emitting operation. Alternatively, the IPL sterilizer may perform a light emitting operation only when an operation switch is sensed.

In the figure, a high level of the first second switching signal SW2 represents an automatic light emission operation, and a high level of the second second switching signal SW2 represents a light emission operation when an operation switch is sensed.

First, an operation of automatically emitting light will be described.

In the standby state, when the distance between the IPL sterilizer and the object is a safe distance, the controller 180 outputs the second switching signal SW2 at a high level. The second switching signal SW2 is output at a high level for a first predetermined time period t1. Charges stored in the capacitor 220 are transferred to the lamp 230, and the lamp 230 also emits a first light E1 for a first time period t1. At this time, the first light emission E1 may be emitted as much as the first light emission amount L1.

When the first light emission E1 ends, the controller 180 outputs the first switching signal SW1 at a high level and the second switching signal SW2 at a low level, so that the capacitor 220 to charge Although not shown in the drawings, when the charging of the capacitor 220 is completed, a charge maintenance operation is performed to maintain the charged amount of the capacitor 220 . While charging and maintaining the charge of the capacitor 220 are performed, the lamp 230 receives the sustain current Im from the simmer driving unit 247, thereby performing a preliminary light emission operation.

Hereinafter, a passive light emission operation will be described.

When an input by the operation switch is detected, the IPL sterilization device determines whether the distance to the object is within a safe distance. In addition, it is determined whether the amount of charge of the capacitor 220 is such that light emission is possible. When there is a safety distance and the amount of charge of the capacitor 220 is such that light emission is possible, the controller 180 outputs the second switching signal SW2 at a high level. The second switching signal SW2 may be output at a high level for a second time period t2.

The second time t2 at this time may be a predetermined time or a time defined by a user input. When the second time t2 is a time determined by a user input, the second time t2 may be a time corresponding to a time when the input of the operation switch is maintained. That is, when the operation switch is a button, the time at which the button is input may be the second time period t2.

Alternatively, the operation switch may be composed of a plurality of buttons capable of defining the second time period t2. For example, when the first button is pressed, the second time t2 may be predefined to operate for a short time, and when the second button is pressed, the second time t2 is longer than when the first button is pressed. 2 The switching signal SW2 may be output at a high level. As a result, in the third embodiment, an IPL sterilization device capable of adjusting the amount of light emitted by a user's input can be provided.

If the second time t2 is shorter than the time required for the capacitor 220 to be completely discharged, a remaining amount of charge may remain in the capacitor 220 even after the second light emission E2 ends. Even in this case, when the light emitting operation ends, the capacitor 220 may be charged by the high level of the first switching signal SW1. However, the charging (Ca) may be completed in a shorter time than the fully discharged charging. Even in this case, the power supply 210 may supply the same voltage to the capacitor 220 .

When the distance (d) between the IPL sterilizer and the object is not a safe distance, the IPL sterilizer is changed to a standby state, and in the standby state, the holding current (Im) of the simmer driver 247 is supplied to the lamp 230. and the pre-emission state is maintained. When a predetermined time elapses while the standby state is maintained, the controller 180 may terminate the IPL sterilization device. In case of termination, the shimmer driver 247 no longer supplies voltage to the lamp 230, and the preliminary light emission operation of the lamp 230 may be terminated. When the simmer driver 247 receives voltage from the power supply 210, the supply of the voltage from the power supply 210 is terminated, thereby ending the output of the holding current of the simmer driver 247. Alternatively, if there is an internal switch of the simmer driver 247, the output of the holding current of the simmer driver 247 may be terminated by opening the switch.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program commands recorded on the medium may be specially designed and configured for the embodiment or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. - includes hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the method described, and/or components of the described system, structure, device, circuit, etc. may be combined or combined in a different form than the method described, or other components may be used. Or even if it is replaced or substituted by equivalents, appropriate results can be achieved.

Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

IPL Sterilizer 100
power supply 110
capacitor 120
lamp 130
circuit part 140
sensor unit 150
output unit 160
input unit 170
controller 180

Claims (14)

As an IPL device for sterilizing by irradiating pulsed light to an object,
a xenon lamp for outputting pulsed light in an ionized state;
a capacitor charged with electric energy for applying a voltage to the xenon lamp;
a pulse driver for pulsing by applying a voltage from the capacitor to the xenon lamp to output pulsed light from the xenon lamp; and
A controller for changing the operating state of the IPL device during a power-on period based on the distance to the target object;
The control unit
When the distance to the object is less than a predetermined distance,
Maintaining a sterilization operation state in which pulsed light is output by pulsing the xenon lamp through the pulse driver;
When the distance to the object is greater than or equal to a predetermined distance,
The IPL device maintaining a sterilization standby state in which predetermined electrical energy is charged in the capacitor to output pulsed light for sterilization without pulsing the xenon lamp through the pulse driver.
According to claim 1,
IPL device in which the capacitor is discharged by the voltage applied to the xenon lamp through the pulse driver.
According to claim 1,
The control unit controls to apply a voltage from the capacitor to the xenon lamp when the distance to the object is less than a predetermined distance and the operation switch is pressed.
According to claim 1,
The sterilization standby state includes a charging step of charging the capacitor with a voltage and a maintenance step of maintaining the voltage of the capacitor.
According to claim 1,
The controller terminates the sterilization standby state when the sterilization standby state is maintained for a specific time or longer.
According to claim 1,
The control unit determines that the distance to the object is less than a predetermined distance,
The IPL device maintaining the sterilization standby state when the charge amount of the capacitor is less than a predetermined value.
According to claim 1,
further comprising a switch for controlling the charging of the electrical energy into the capacitor;
The switch and the pulse driver alternately outputting a high level IPL device.
As an IPL device for sterilizing by irradiating pulsed light to an object,
a xenon lamp for outputting pulsed light in an ionized state;
a capacitor charged with electric energy for applying a voltage to the xenon lamp;
a pulse driver for pulsing by applying a voltage from the capacitor to the xenon lamp to output pulsed light from the xenon lamp;
a simmer driver providing a predetermined current to the xenon lamp so that the xenon lamp maintains the ionized state; and
A controller for changing the operating state of the IPL device during a power-on period based on the distance to the target object;
The control unit
When the distance to the object is less than a predetermined distance,
Maintaining a sterilization operation state in which pulsed light is output by pulsing the xenon lamp through the pulse driver;
When the distance to the object is greater than or equal to a predetermined distance,
The IPL device maintaining a sterilization standby state in which the xenon lamp is not pulsed through the pulse driver, but the simmer state of the xenon lamp is maintained through the simmer driver.
According to claim 8,
The xenon lamp performs a preliminary light emission operation when in a dark state,
The amount of light output in the preliminary light-emitting operation is smaller than the amount of light output in the sterilization operation state.
According to claim 8,
The IPL device of claim 1 , wherein the simmer driver maintains a connection with the xenon lamp regardless of an operation state change by the control unit.
According to claim 8,
The control unit controls the output light amount of the xenon lamp by the high level holding time of the pulse output from the pulse driver.
According to claim 8,
The IPL device having a different amount of charge charged in the capacitor after outputting the pulsed light according to the amount of light output by the sterilization operation state.
According to claim 11,
The high level holding time of the pulse is determined according to a user input.
According to claim 8,
The controller terminates the sterilization standby state when the sterilization standby state is maintained for a specific time or longer.

Images