KR101659795B1

KR101659795B1 - Skin treatment device using the induction

Info

Publication number: KR101659795B1
Application number: KR1020150123639A
Authority: KR
Inventors: 정성재
Original assignee: (주)클래시스
Priority date: 2015-09-01
Filing date: 2015-09-01
Publication date: 2016-09-26

Abstract

The present invention relates to a skin treatment apparatus using an induction phenomenon, which comprises a handpiece having a first coil part, a puff rotatably connected to a handpiece, and having a second coil part incorporated therein, And an induction current is generated in the second coil part by the current. Due to this feature, current is supplied to the puff without electric wire by inducing the first coil part in the handpiece and the second coil part in the puff, so that the twist of the electric wire can be prevented in advance.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a skin treatment apparatus using skin induction,

The present invention relates to a device for operating a skin using an induction phenomenon. More particularly, the present invention relates to a device for introducing a current without a wire to a puff through induction of a first coil portion in a handpiece and a second coil portion in the puff, The phenomenon can be prevented in advance.

Environmental pollution occurs due to technological progress, which causes various diseases. Especially, due to the ozone depletion due to freon gas and the like, ultraviolet rays can not be blocked, and various forms of skin diseases such as dermatitis and skin tumor are being expressed.

In order to treat such skin diseases, conventionally treatment of skin diseases using a laser has become common. However, laser treatment has been disadvantageous in that it is very difficult to regulate the amount of laser and adjust the light intensity, and the cost of treatment is high because expensive equipment is used for laser treatment.

In order to overcome these problems, a skin treatment device using LED instead of laser has recently been developed. LED is short for Light Emitting Diode and is used to treat various skin diseases by releasing light of a specific wavelength emitted from a specific medium in a pulse or continuous wave form.

However, in the conventional LED skin treatment apparatus, a separate wire is required to supply current to the LED, and when the LED illumination module including LED is applied to the subject, twisting of the wire occurs during the procedure, Aging and frequent breakdown shorten the lifespan of the LED skin treatment device.

In order to solve the problem of shortening the service life, Korean Patent Laid-Open Publication No. 2014-0121220 is an invention relating to an LED module for skin treatment, and is characterized by having a radiating fin for emitting heat generated from the LED. However, only the effect of dissipating the heat generated by the LED is generated, and the structural problem of the wire itself can not be solved.

Therefore, there is a need for a skin treatment device capable of supplying current to the LED illumination module without a separate electric wire.

It is an object of the present invention to prevent a twist of a wire from occurring by supplying a current to the puff without a wire by inducing a first coil portion in the handpiece and a second coil portion in the puff.

In order to achieve the above object, a skin treatment apparatus using induction phenomenon according to the present invention comprises a handpiece having a first coil part, a puff rotatably connected to a handpiece, and a second coil part, And an induced current is generated in the second coil part by a current applied to the first coil part.

In addition, the puff of the skin treatment apparatus using the induction phenomenon according to the present invention may further include a PCB circuit board connected to the second coil part inside the puff, and a light emitting device mounted on the PCB circuit board.

In addition, an induction current is supplied to the PCB circuit board of the skin treatment apparatus using the induction phenomenon according to the present invention, so that the light emitting device emits light.

In addition, the puff of the skin treatment device using the induction phenomenon according to the present invention is characterized in that a vibration generating part driven by an induced current generated in the second coil part is built in.

In addition, the vibration generating unit of the skin treatment apparatus using the induction phenomenon according to the present invention includes a motor driven by an induction current, and a vibration load connected to a rotation axis of the motor to generate eccentricity.

In addition, the material of the puff of the skin treatment apparatus using the induction phenomenon according to the present invention is characterized by being soft synthetic resin or silicone.

Further, the light emission intensity of the light emitting device is changed by a distance between the first coil part and the second coil part of the skin treatment device using the induction phenomenon according to the present invention.

Also, the vibration intensity of the vibration load is changed by the distance between the first coil part and the second coil part of the skin treatment device using the induction phenomenon according to the present invention.

According to the present invention, current can be supplied to the light emitting element without supplying a current through a separate wire using the induction phenomenon between the first coil part and the second coil part, thereby preventing the wire from being prevented from being twisted.

In addition, according to another embodiment of the present invention, vibration can be generated without supplying current through a separate wire using the induction phenomenon between the first coil part and the second coil part, thereby preventing the wire from being twisted can do.

1 is a side view showing a skin treatment apparatus using an induction phenomenon according to the present invention.
2 is a perspective view showing a power transmission unit according to the present invention.
3 is a perspective view showing a gear portion according to the present invention.
4 is a perspective view illustrating a state in which the power transmitting portion and the gear portion are coupled according to the present invention.
5 is a plan view showing a state in which the gear portion according to the present invention is engaged with the ring gear.
6 is a plan view showing a rotation route of the power transmitting portion and the gear portion.
7 is a plan view showing a rotation route of a third shaft connecting the gear portion and the puff according to the present invention.
8 is a perspective view and a bottom view showing a puff including a light emitting device and the like in the present invention.
FIG. 9 is a side view showing a rotating state of the skin treatment apparatus using the induction phenomenon according to the present invention.
10 is a side view showing another embodiment of a puff according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view showing a skin treatment apparatus using an induction phenomenon according to the present invention. Hereinafter, components of a skin treatment apparatus using induction phenomenon will be described with reference to FIG.

The apparatus for treating a skin using induction according to the present invention includes a handpiece 100 serving as a housing, a first coil part 800 formed around the inner surface of the handpiece 100, The power transmission unit 300 coupled to the motor unit 200, the gear unit 400 coupled to the power transmission unit 300 and the gear unit 400, And a puff 600 connected to the ring gear 500 and the gear portion 400 formed in the circumferential direction.

The handpiece 100 serves as a housing and the motor unit 200, the power transmission unit 300, and the gear unit 400 are preferably formed in the handpiece 100. It is preferable that the end of the handpiece is opened to secure a space in which the gear portion 400 rotates.

It is preferable that the first coil part 800 is formed inside the handpiece 100 and the first coil part 800 is formed along the inner surface of the handpiece 100. [ The term "coil portion" generally refers to winding a wire, and when a current is passed through the coil, a magnetic flux is generated, which promotes the action of electromagnetic induction or electromagnetic force. In addition, since it has an inductance, it can exhibit a resonance characteristic at one frequency when it is combined with a capacitor. The shape of the first coil part 800 is not limited thereto but it is preferable that the shape of the first coil part 800 is formed in an annular shape along the inner surface of the handpiece 100 in the vicinity of the second shaft 330. [ The induction phenomenon with the first coil part through the rotation of the second coil part 610 will be described later.

It is preferable that the ring gear 500 is formed at the end of the opened handpiece 100 in the circumferential direction along the inner surface of the handpiece 100. Here, the ring gear 500 is a gear corresponding to the pinion gear 410, which means that a general gear is formed in a circular shape. At this time, the present invention is not limited to the ring gear 500, and a plurality of spur gears corresponding to the pinion gears 410 may be formed along the inner surface of the handpiece 100.

The motor unit 200 has a function of transmitting power to the power transmission unit 300 and the gear unit 400. The motor unit 200 is coupled to the first shaft 310 of the power transmission unit 300, First, power is transmitted to the first shaft 310. The power transmitting portion 300 is composed of a first shaft 310, a connecting portion 320, and a second shaft 330, and the detailed configuration will be described later.

The power transmission unit 300 connected to the motor unit 200 is connected to the gear unit 400 and the gear unit 400 includes the pinion gear 410 and the third shaft 420. Similarly, the detailed configuration of the gear portion 400 together with the power transmitting portion 300 will be described later.

A puff 600 is coupled to a lower portion of the third shaft 420 of the power transmission unit 300. In general, the puff is a device for uniformly applying cosmetics by lightly and uniformly tapping the makeup area. In the present invention, the puff is regarded as a part that is used in a skin treatment device and contacts directly with the skin. At this time, it is preferable that the puff is formed of a soft synthetic resin material or a silicone material so as to prevent the skin from being damaged during the procedure.

The puff 600 includes a light emitting element or a vibration generating part, and a description of the puff 600 according to the present invention will be given later.

At this time, a transducer module for generating ultrasonic waves may be coupled to the lower portion of the third shaft 420. The transducer is a device that generates HIFU (High Intensity Focused Ultrasound), for example, and can treat the operator's skin using heat generated by the HIFU.

When the pinion gear 410 rotates along the inner circumferential surface of the ring gear 500 in engagement with the ring gear 500, the third shaft (not shown) coupled to the pinion gear 410 420 rotate with the pinion gear 410 and the puff 600 coupled to the pinion gear 410 rotates accordingly. With this principle, the puff 600 is rotated, the LED or the like from the light emitting element can be irradiated to the skin of the operator, or the vibration generating unit can apply vibration evenly to the subject's skin.

2 is a perspective view showing a power transmission unit according to the present invention. Hereinafter, with reference to Fig. 2, the components of the power transmitting portion will be described.

The power transmitting portion 300 includes a first shaft 310, a connecting portion 320, and a second shaft 320 as components. The connection portion 320 is preferably an elliptical shape having a thickness, but the shape is not limited. A first shaft 310 protruding upward from the connection part 320 is formed at one point of the connection part 320. The first shaft 310 is preferably cylindrical so that the pinion gear 410 rotates about the center of the ring gear 500 relative to the hollow (not shown) It is preferable that the first shaft 310 is positioned on the first shaft 310. This is because the pinion gear 410 can not be rotated along the inner circumferential surface when the first shaft 310 is positioned eccentrically with respect to the hollow in the ring gear 500,

A second shaft 330 protrudes from the lower portion of the connection part 320. At this time, it is preferable that the second shaft 330 protrudes through the connection part 320 as shown in FIG. The second shaft 330 is preferably cylindrical, and penetrates the hole 411 of the gear portion 400, which will be described later. The gear portion 400 is subjected to the rotation of the power transmitting portion 300 due to the shape of the second shaft 330 passing through the hole 411 so that the power of the motor portion 200 is transmitted to the gear portion 400 As shown in FIG.

3 is a perspective view showing a gear portion according to the present invention. Hereinafter, the components of the gear portion will be described with reference to Fig.

The gear portion 400 includes a pinion gear 410, a hole 411, and a bearing 413. The pinion gear 410 is a type of general gear that transmits rotational force to a gear engaged with the pinion gear 410. The gear end portion 412 of the pinion gear 410 is engaged with the gear end portion 510 of the ring gear 500 and the gear ratio of the pinion gear 410 and the ring gear 500 is different.

A hole 411 is formed through the pinion gear 410. The hole 411 passes through the second shaft 330 of the power transmitting portion 300 and transmits the rotational force of the second shaft 330 to the pinion gear 410. At this time, it is preferable that the position of the hole 411 is located at the center of the pinion gear 410. The pinion gear 410 is rotated by engaging with the ring gear 500 by receiving the rotational force from the motor unit 200 and the power transmitting unit 300. If the position of the hole 411 is positioned eccentrically rather than the center of the pinion gear 410, the pinion gear 410 can not be rotated along the inner circumferential surface by being engaged with the ring gear 500.

A bearing 413 is coupled to the inside of the hole 411. At this time, the bearing 413 is preferably a rolling bearing. Rolling bearings are bearings with balls and rollers inserted between the outer ring and the inner ring to reduce friction by making contact with each other. Such bearings include double row self-aligning bearings, single thrust bearings, needle bearings, cylindrical bearings, conical bearings and spherical roller bearings . When such a rolling bearing is used, there is an advantage that the friction loss during rotation of the second shaft 330 passing through the hole 411 is reduced, so that the torque loss is reduced.

A third shaft 420 protruding downward from the pinion gear 410 is formed at the lower portion of the pinion gear 410. At this time, as shown in FIG. 3, the third shaft 420 is preferably protruded through the pinion gear 410. The third shaft 420 protrudes out of the handpiece 100 and is connected to the puff 600. The third shaft 420 serves to finally transmit the rotational force generated by the motor unit 100 to the puff 600. [

4 is a perspective view illustrating a state in which the power transmitting portion and the gear portion are coupled according to the present invention. Hereinafter, the process of transmitting rotational force from the motor unit to the puff will be described with reference to FIG.

When the motor unit 200 generates a rotational force, a rotational force is transmitted to the first shaft 310. The connection portion 320 coupled with the first shaft 310 is rotated counterclockwise and the second shaft 330 coupled with the connection portion 320 is rotated in the counterclockwise direction, assuming that the first shaft 310 rotates counterclockwise. Similarly rotate counterclockwise.

The second shaft 330 penetrates the pinion gear 410 through the hole 411 so that the rotational force of the second shaft 330 is transmitted to the pinion gear 410. At this time, in order to prevent the loss of the rotational force of the second shaft 330, it is preferable that the rolling bearing 413 is formed in the hole 411 as described above.

The pinion gear 410 meshes with the ring gear 500 and rotates in the counterclockwise direction from the power transmitting portion 300 in correspondence with the counterclockwise rotation of the first shaft 310, the connecting portion 320 and the second shaft 330 Since only the rotational force is transmitted due to the through-coupling, a traveling route is formed in a counterclockwise direction corresponding to the rotation of the power transmitting portion 300 and the engagement with the ring gear 500. However, the third shaft 420 connected to the pinion gear 410 rotates in a clockwise direction opposite to the rotational direction of the motor unit 200. A detailed description thereof will be given in FIGS. 5 and 6. FIG.

The third shaft 420 is formed at an eccentric position with respect to the center of the pinion gear 410 and protrudes to the lower portion of the pinion gear 410. The third shaft 420 rotates in a direction opposite to the rotating direction of the power transmitting portion 300 and the plow 600 coupled to the lower portion of the third shaft 420 is rotated in the opposite direction to the rotating direction of the power transmitting portion 300 Direction.

5 is a plan view showing a state in which the gear portion according to the present invention is engaged with the ring gear. Hereinafter, a state in which the gear portion is engaged with the ring gear will be described with reference to FIG.

The motor shaft 200 and the first shaft 310 of the power transmission unit 300 are located at the center of the handpiece 100. This is because the pinion gear 410 meshes with the ring gear 500 and rotates along the inner circumferential surface of the ring gear 500. The first shaft 310 is connected to the gear portion 400 through the connecting portion 320 and the second shaft 330. The gear portion 400 is composed of a pinion gear 410 and a third shaft 420 and a hole 411 is formed in the pinion gear 410. At this time, it is preferable that the rolling bearing 413 is coupled to the hole 411 to prevent loss of rotational force of the motor unit 200.

At this time, the hole 411 of the pinion gear 410 is preferably formed at the center of the pinion gear 410. This is the same principle as the first shaft 310 of the motor unit 200 and the power transmission unit 300 is formed at the center of the handpiece 100. That is, when the third shaft 420 passes through the hole 411 of the pinion gear 410 and transmits the rotational force, when the hole 411 is not formed at the center of the pinion gear 410 but is eccentrically formed, The pinion gear 410 can not rotate along the inner circumferential surface of the ring gear 500 while the gear end 412 of the ring gear 410 and the gear end 510 of the ring gear 500 are engaged.

A third shaft 420 is protruded from a lower portion of the pinion gear 410 at a position eccentric to the hole 411. Although not shown in FIG. 5, the puff 600 is coupled to the lower portion of the third shaft 420, and rotates together with the third shaft 420.

6 is a plan view showing a rotation route of the power transmitting portion and the gear portion. 6, the rotation route of the motor portion, the second shaft, and the third shaft will be described.

Assuming that the motor unit 200 applies a rotational force in the counterclockwise direction, the first shaft 310 of the power transmission unit 300 also generates rotational force in the counterclockwise direction. This rotational force is transmitted to the connecting portion 320 and the second shaft 330 of the power transmitting portion 300, and a rotational force is generated in a counterclockwise direction as in the case of the first shaft 310.

The second shaft 330 passes through the hole 411 of the pinion gear 410 and the rotational force of the second shaft 330 is transmitted to the pinion gear 410 which is dependent on the second shaft 330. The pinion gear 410 meshes with the ring gear 500 and rotates along the inner circumferential surface of the ring gear 500. Accordingly, the second shaft 330 connected to the pinion gear 410 draws a movement route in the counterclockwise direction in the same manner as the rotation direction of the motor unit 200.

The pinion gear 410 itself rotates in a direction opposite to the rotation direction of the motor unit 200 and the power transmitting unit 300 so as to engage with the ring gear 500, . The pinion gear 410 itself rotates in the clockwise direction while the second shaft 330 moves in the counterclockwise direction along the inner circumferential surface.

The eccentric third shaft 420 is rotated in the clockwise direction opposite to the rotational direction of the motor unit 200 because the eccentric third shaft 420 is dependent on the pinion gear 410 in the process of rotating the pinion gear 410 in the clockwise direction .

7 is a plan view showing a rotation route of a third shaft connecting the gear portion and the puff according to the present invention. 7, the rotation route of the third shaft coupled to the pinion gear will be described.

7 shows the rotation route of the third shaft 420 while the pinion gear 410 rotates one turn along the inner circumferential surface of the ring gear 500. Fig. The third shaft 420 rotates in a direction opposite to the rotation direction of the motor unit 200 and the second shaft 330 and rotates while drawing a small circle while the pinion gear 410 rotates one rotation.

The third shaft 420 moves in the opposite direction to the rotation direction of the motor unit 200 and the second shaft 330 but moves along the inner circumferential surface of the ring gear 500 by the second shaft 330, The rotation route of the third shaft 420 during the rotation of the second shaft 330 makes a small circle in the same direction as the rotation direction of the motor unit 200 and the second shaft 330. [

The puff 600 connected to the lower portion of the third shaft 420 is also rotated in a direction opposite to the motor portion 200 and the second shaft 330. The rotational force of the motor unit 200 is finally transmitted to the puff 600 through the power transmitting unit 300 and the gear unit 400.

8 is a perspective view and a bottom view showing a puff according to the present invention. Hereinafter, one embodiment of the puff according to the present invention will be described with reference to FIG.

One embodiment of the puff 600 according to the present invention preferably includes a second coil portion 610, a PCB circuit board 620, and a light emitting device 630. The puff 600 is preferably formed into an oval shape with an elliptical base, but its shape is not limited. Further, it is preferable that the light emitting element 630 is formed of a (semi) transparent material so that the blinking of the light emitting element 630 can be observed from the outside for an aesthetic effect.

The second coil portion 610 is characterized in that the conductor is wound like the first coil portion 800. The second coil portion 610 is formed in a circular ring shape inside the puff 600, but the shape is not limited. The second coil portion 610 serves to generate a current through a mutual inductive operation with the first coil portion 800 inside the handpiece 100. The mutual inductive action of the first coil portion 800 and the second coil portion 610 will be described later in Fig.

The current generated by induction in the second coil part 610 is transmitted to the PCB circuit board 620 through a wire (not shown). The PCB circuit board 620 is an abbreviation of Printed Circuit Board, which refers to a printed circuit board, and refers to a thin board on which chips and other electronic components are installed. PCBs are made of reinforced fiber glass or plastic, and components are connected together through a circuit of copper. The main PCB within the system is referred to as the system board or motherboard. Although the PCB circuit board 620 is formed inside the puff 600 and is preferably located under the second coil part 610, its position is not limited.

It is preferable that the light emitting devices 630 are mounted on the PCB circuit board 620. Mounting means that the light emitting elements are inserted into the circuit board. At this time, the light emitting element 630 is preferably an LED element. LED is short for Light Emitting Diode and is used to treat various skin diseases by emitting light of a certain wavelength emitted from a specific medium in a pulse or continuous wave form. A current is generated through induction of the first coil part 800 and the second coil part 610 and the current is transmitted to the PCB circuit board 620, 630). In particular, it is a principle in which an LED element receives a current and flickers.

It is preferable that a transparent film 640 is formed under the PCB circuit board 620. The transparent film 640 is formed so that light emitted from the light emitting element 630 is irradiated to the skin, while protecting parts in the puff 600 from external stimuli.

FIG. 9 is a side view showing a rotating state of the skin treatment apparatus using the induction phenomenon according to the present invention. Hereinafter, a process of generating a current through the rotation and induction phenomenon of the skin treatment apparatus will be described with reference to FIG.

An induction phenomenon refers to an electromagnetic induction phenomenon, and is a phenomenon in which electricity is generated in a coil by changing a magnetic flux passing through the coil. If the bar magnet is moved close to and away from the coil, it can be understood that electricity is generated in the coil when the magnetic force line passing through the coil is changed. This induction phenomenon is caused by the change of the magnetic field. The phenomenon that the electromotive force is generated in the conductor by the change of the magnetic field is called the electromagnetic induction. The electromotive force is referred to as induced electromotive force and the flowing current is referred to as induced current.

As described above, by the rotation of the motor unit 200, the power transmission unit 300, and the gear unit 400, the puddle 600 forms a small circle, (500). This rotation causes rotation of the second coil part 610 in the puff 600 and creates a variable distance between the second coil part 610 and the first coil part 800. [ That is, the rotation of the second coil portion 610 changes the magnetic flux between the second coil portion 610 and the first coil portion 800, Thereby inducing an induction current in the portion 610.

The induced current thus generated is transmitted to the PCB circuit board 620 through a wire (not shown), and the PCB circuit board 620 transmits the light emitting element 630 embedded in the PCB circuit board 620 through the received current Thereby emitting light. That is, the current can be supplied to the light emitting element 630 without a separate electric wire, so that the light emitting element 630 can be irradiated to the skin of the person to be treated, thereby preventing the wire twisting problem.

Since the distance between the first coil part 800 and the second coil part 610 is variable, the induced current is inversely proportional to the distance between the first coil part 800 and the second coil part 610 . The amount of the induced current does not flow in the light emitting device 630 incorporated in the puff 600 and the distance between the first coil part 800 and the second coil part 610 causes the light emitting device 630 Is changed. Assuming that the light emitting element 630 is an LED element, due to such an effect, variations in the amount of emitted light of the LED are caused during the procedure, thereby preventing the skin image caused by the thermal energy applied to the skin of the operator and providing various thermal stimuli to the skin There is an advantage to be able to do.

Further, according to the present invention, when the light emitting device 630 is assumed to be a LED device, there is an advantage that the LED can be uniformly irradiated to the skin. In the case of the conventional LED illumination module, the LED illumination module is not moved and the LED is irradiated intensively only at one point, causing skin damage. However, in the case of the puff 600 according to the present invention, Is rotated together with the rotation of the third shaft 420, it is possible to prevent damage to the skin due to intensive LED illumination by irradiating the LED uniformly on the skin rather than at one point.

10 is a side view showing another embodiment of a puff according to the present invention. Hereinafter, the driving principle of the puff for generating vibration will be described with reference to FIG.

Another embodiment 700 of the puff includes a second coil portion 740 and a vibration generating portion. In addition, the vibration generating portion includes a motor 710 and a vibration load 720. At this time, the motor 710 is preferably an eccentric gear motor. The eccentric gear motor refers to a motor in which gears that are attached to the shaft of the motor are eccentric rather than centered, thereby generating irregular rotation instead of constant circular rotation. The principle that the induced current generated by the second coil part 740 described above is transmitted to the motor 710 through the electric wire 730 and the vibration load 720 connected to the shaft of the motor 710 receives the rotational force to vibrate to be. In the case of the eccentric gear motor, the vibration load 720 is connected to the rotating shaft of the motor 710 to generate an eccentric vibration. In this case, the reference numerals of the second coil part are different from those of the first embodiment in order to distinguish the embodiment from the other embodiments.

The vibration generated from the vibration load 720 causes vibration to be generated in the entire other example 700 of the puff and when the other embodiment 700 of the puff is in contact with the skin of the subject to be treated in the procedure, Massage effect can be generated.

Since the distances between the first coil part 800 and the second coil part 740 are variable, the induced current is generated in inverse proportion to the distance between the first coil part 800 and the second coil part 740 do. This prevents a constant amount of induction current from flowing into the motor 710 housed inside the puff other embodiment 700 and causes the first coil part 800 and the second coil part 740 to vibrate The intensity of the load 720 is changed. Such an effect can provide a feeling that the vibration is changed to the treatment subject during the procedure and the massage effect is maximized.

Also, although not shown in the drawing, it is also possible that the configuration of the light emitting device according to one embodiment 600 of the puff and the structure of the vibration generating part according to another embodiment 700 of the puff are configured simultaneously in one puff. When the induction current is received from the wires connected to the second coil part and simultaneously the light emission and the vibration of the light emitting element are generated, both procedures can be performed simultaneously.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

100: handpiece 200: motor part
300: Power transmission unit 310: First shaft
320: connecting portion 330: second shaft
400: gear portion 410: pinion gear
411: hole 413: bearing
420: third shaft 500: ring gear
600: Puff 610: Second coil part
620: PCB circuit board 630: Light emitting element
640: Transparent film 700: Another embodiment of puff
710: motor 720: vibration load
730: wire 800: first coil part

Claims

A handpiece having a first coil portion;
A puff having a second coil portion connected to the handpiece and rotated,
And an induction current is generated in the second coil part by a current applied to the first coil part.

The method according to claim 1,
Preferably,
A PCB circuit board connected to the second coil part inside the puff;
Further comprising a light emitting device mounted on the PCB circuit board.

The method of claim 2,
Wherein the induction current is supplied to the PCB circuit board to emit the light emitting device.

The method according to claim 1,
Wherein the puff includes a vibration generating portion driven by an induction current generated in the second coil portion.

The method of claim 4,
The vibration generating unit may include:
A motor driven by the induction current;
And a vibration load connected to the rotation axis of the motor to generate eccentricity.

The method according to claim 1,
Wherein the material of the puff is soft synthetic resin or silicone.

The method of claim 3,
Wherein the light emission intensity of the light emitting device is changed by a distance between the first coil part and the second coil part.

The method of claim 5,
Wherein the vibration intensity of the vibration load is changed by a distance between the first coil part and the second coil part.