Skin care device

1. A skin care device comprising:

at least one brush brought into contact with skin of a user;

a motor configured to rotate or vibrate at least one of the at least one brush;

a battery configured to supply power to the motor;

a main body provided with the at least one brush disposed on one surface thereof and having an accommodation space accommodating the motor and the battery therein; and

a cradle including:

an accommodation space accommodating the at least one brush and having a charging module configured to supply power to the battery;

a sterilization module configured to irradiate ultraviolet light to the at least one brush accommodated in the accommodation space of the cradle;

a light diffuser disposed between the accommodation space of the cradle and the sterilization module;

an upper case forming the accommodation space of the cradle and configured to accommodate the light diffuser; and

a lower case formed below the upper case and configured to accommodate the charging module,

wherein the lower case has at least one discharge hole allowing water to be discharged to the outside therethrough, and the at least one discharge hole is provided along a concentric circle spaced apart from a center of the lower case,

wherein the sterilization module is disposed in an inner boundary surface of each of the at least one discharge hole, and

wherein the cradle further comprises a sterilization module sealing portion provided between a lower portion of the light diffuser and the inner boundary surface of each of the at least one discharge hole.

2. The skin care device of claim 1 , wherein

the sterilization module comprises a ultraviolet (UV)-C light emitting diode (LED) configured to irradiate ultraviolet light having a UV-C wavelength.

3. The skin care device of claim 1 , wherein

the cradle further comprises a charging module sealing portion provided between an inner circumferential surface of the upper case and an outer boundary surface of the at least one discharge hole.

4. The skin care device of claim 1 , wherein the main body further comprises a controller configured to control an operation of the motor,

wherein the controller is configured to control the motor to rotate or vibrate the at least one brush for a predetermined time when the at least one brush is accommodated in the accommodation space of the cradle as the main body is mounted on the cradle, and

wherein the sterilization module irradiates the ultraviolet light after the lapse of the predetermined time.

5. The skin care device of claim 1 , wherein the at least one brush comprises:

an inner brush; and

an outer brush provided outside the inner brush.

6. The skin care device of claim 5 , wherein the main body comprises:

a connection portion rotated by driving of the motor;

an inner brush fixing portion fastened to the connection portion; and

an inner brush base fastened to the inner brush fixing portion and allowing the inner brush to be fixed thereto.

7. The skin care device of claim 1 , wherein the main body further comprises:

a case forming an appearance of the main body;

a cover formed on an opposite side of the one surface; and

a speaker provided between the case and the cover.

8. The skin care device of claim 7 , wherein:

the cover is provided with a speaker hole opening a portion of the speaker to the outside,

the case is provided with a depressed portion formed by depressing a portion to an inside of the main body, and

an echo space is provided between the depressed portion and the speaker.

9. A skin care device comprising:

at least one brush brought into contact with skin of a user;

a motor configured to rotate or vibrate at least one of the at least one brush;

a battery configured to supply power to the motor;

a main body provided with the at least one brush disposed on one surface thereof and having an accommodation space accommodating the motor and the battery therein; and

a cradle having an accommodation space accommodating the at least one brush and having a charging module configured to supply power to the battery,

wherein the main body further comprises:

a case forming an appearance of the main body;

a cover formed on an opposite side of the one surface; and

a speaker provided between the case and the cover,

wherein the cover is provided with a speaker hole opening a portion of the speaker to the outside,

wherein the case is provided with a depressed portion formed by depressing a portion to an inside of the main body, and

wherein an echo space is provided between the depressed portion and the speaker, and

wherein the main body further comprises a speaker sealing member provided between the speaker and the case and configured to shield the echo space from the outside.