Device and method for automatically sterilizing and cleaning inside toilet bowl under bidet seat

Abstract

Proposed is a device and method for automatically sterilizing and cleaning the inside of a toilet bowl under a bidet seat, which enables the use of a bidet in a clean state at all times by automatically spraying purified or sterilized water into the toilet bowl by recognizing illuminance in a bidet installation space by means of an optical sensor, utilizing integrally the illuminance and time, or using a seat interlocking mechanism. According to the device and method, purified water is generated when light is detected in dark conditions in order to perform primary cleaning of the toilet bowl, and sterilized water is generated when illuminance changes from a level representing the bright conditions to a level representing the dark conditions in order to perform secondary cleaning of the toilet bowl.

What is claimed is: 
     
         1 . A device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat, comprising:
 an operation part configured to input a bidet operation or cleaning operation;   a seating sensor configured to detect seating;   an optical sensor configured to detect illuminance of a space where the bidet seat is installed;   a purified/sterilized water generation part configured to generate purified and sterilized water using water supply;   a control unit configured to control the bidet operation or cleaning operation according to the bidet operation or cleaning operation operated by the operation part, and control an injection of sterilized water or purified water into the toilet bowl based on a seating detection signal of the seating sensor, an illuminance detection signal of the optical sensor, and time measured by an internal timer;   a flow controller configured to adjust flow rate of purified water or sterilized water according to a control of the control unit; and   a spray nozzle part configured to spray purified water or sterilized water supplied through the flow controller into the toilet bowl.   
     
     
         2 . The device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , wherein the purified/sterilized water generation part generates purified water by filtering introduced raw water with a water filter, and generates sterilized water by electrolyzing the introduced raw water. 
     
     
         3 . The device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , wherein when an illuminance change is detected, under the control of the control unit, a first cleaning is performed by spraying purified water into the toilet bowl before the bidet seat is used, and a secondary sterilization and cleaning is performed by spraying sterilized water or purified water into the toilet bowl after the bidet seat is used. 
     
     
         4 . The device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , wherein the control unit checks a lapse of a set time using the internal timer after having an inside of the toilet bowl washed by spraying purified water on the basis of an illuminance change detected by using the optical sensor, and when the set time elapsed, initiates spraying of purified water or sterilized water into the toilet bowl for a predetermined period of time to automatically sterilize and clean the inside of the toilet bowl. 
     
     
         5 . The device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , wherein the control unit initiates the injection of purified water into the toilet bowl for a set time to automatically clean the inside of the toilet bowl when a set period of time elapses after the seating is detected and then cancelled by the seating sensor. 
     
     
         6 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , the method comprising:
 (a) generating purified water using water supply when light is detected in dark conditions during detection of illuminance change by using an optical sensor; and   (b) cleaning the toilet bowl by spraying the generated purified water into the toilet bowl for a set period of time,   wherein in the (a), the optical sensor detects the illuminance change, and when the illuminance changes from a level representing bright conditions to a level representing the dark conditions, sterilized water is generated using water supply, and   in the (b), the generated sterilized water is sprayed into the toilet bowl for the set period of time to clean the toilet bowl.   
     
     
         7 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , the method comprising:
 (a) generating purified water or sterilized water using water supply when light is detected in dark conditions or darkness is detected in bright conditions during detection of illuminance change by using an optical sensor, and cleaning the inside of the toilet bowl;   (b) generating sterilized water using water supply when a preset period of time has elapsed as a result of checking a lapse of time after cleaning the inside of the toilet bowl on the basis of illuminance change; and   (c) automatically cleaning the toilet bowl by spraying the generated sterilized water into the toilet bowl for a set period of time.   
     
     
         8 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , the method comprising:
 (a) generating purified water using water supply when a set period of time elapses after seating is detected and then cancelled by a seating sensor; and   (b) automatically cleaning the toilet bowl by spraying the generated purified water into the toilet bowl for a set period of time.   
     
     
         9 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , the method comprising:
 (a) generating sterilized water or purified water using water supply when darkness is detected in bright conditions due to an approach of a human body during detection of illuminance change by using an optical sensor; and   (b) cleaning the toilet bowl by spraying the generated sterilized water or purified water into the toilet bowl for a set period of time.   
     
     
         10 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 1 , the method comprising:
 (a) checking a lapse of time and confirms whether a set specific time has reached when a bidet power is turned on or time is reset by an initialization button;   (b) generating sterilized water or purified water using water supply when the set specific time arrives as a result of the confirmation; and   (c) cleaning the toilet bowl by spraying the generated sterilized water or purified water into the toilet bowl for a set period of time.   
     
     
         11 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 2 , the method comprising:
 (a) generating purified water using water supply when light is detected in dark conditions during detection of illuminance change by using an optical sensor; and   (b) cleaning the toilet bowl by spraying the generated purified water into the toilet bowl for a set period of time,   wherein in the (a), the optical sensor detects the illuminance change, and when the illuminance changes from a level representing bright conditions to a level representing the dark conditions, sterilized water is generated using water supply, and   in the (b), the generated sterilized water is sprayed into the toilet bowl for the set period of time to clean the toilet bowl.   
     
     
         12 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 3 , the method comprising:
 (a) generating purified water using water supply when light is detected in dark conditions during detection of illuminance change by using an optical sensor; and   (b) cleaning the toilet bowl by spraying the generated purified water into the toilet bowl for a set period of time,   wherein in the (a), the optical sensor detects the illuminance change, and when the illuminance changes from a level representing bright conditions to a level representing the dark conditions, sterilized water is generated using water supply, and   in the (b), the generated sterilized water is sprayed into the toilet bowl for the set period of time to clean the toilet bowl.   
     
     
         13 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 4 , the method comprising:
 (a) generating purified water using water supply when light is detected in dark conditions during detection of illuminance change by using an optical sensor; and   (b) cleaning the toilet bowl by spraying the generated purified water into the toilet bowl for a set period of time,   wherein in the (a), the optical sensor detects the illuminance change, and when the illuminance changes from a level representing bright conditions to a level representing the dark conditions, sterilized water is generated using water supply, and   in the (b), the generated sterilized water is sprayed into the toilet bowl for the set period of time to clean the toilet bowl.   
     
     
         14 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 2 , the method comprising:
 (a) generating purified water or sterilized water using water supply when light is detected in dark conditions or darkness is detected in bright conditions during detection of illuminance change by using an optical sensor, and cleaning the inside of the toilet bowl;   (b) generating sterilized water using water supply when a preset period of time has elapsed as a result of checking a lapse of time after cleaning the inside of the toilet bowl on the basis of illuminance change; and   (c) automatically cleaning the toilet bowl by spraying the generated sterilized water into the toilet bowl for a set period of time.   
     
     
         15 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 3 , the method comprising:
 (a) generating purified water or sterilized water using water supply when light is detected in dark conditions or darkness is detected in bright conditions during detection of illuminance change by using an optical sensor, and cleaning the inside of the toilet bowl;   (b) generating sterilized water using water supply when a preset period of time has elapsed as a result of checking a lapse of time after cleaning the inside of the toilet bowl on the basis of illuminance change; and   (c) automatically cleaning the toilet bowl by spraying the generated sterilized water into the toilet bowl for a set period of time.   
     
     
         16 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 4 , the method comprising:
 (a) generating purified water or sterilized water using water supply when light is detected in dark conditions or darkness is detected in bright conditions during detection of illuminance change by using an optical sensor, and cleaning the inside of the toilet bowl;   (b) generating sterilized water using water supply when a preset period of time has elapsed as a result of checking a lapse of time after cleaning the inside of the toilet bowl on the basis of illuminance change; and   (c) automatically cleaning the toilet bowl by spraying the generated sterilized water into the toilet bowl for a set period of time.   
     
     
         17 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 2 , the method comprising:
 (a) generating purified water or sterilized water using water supply when light is detected in dark conditions or darkness is detected in bright conditions during detection of illuminance change by using an optical sensor, and cleaning the inside of the toilet bowl;   (b) generating sterilized water using water supply when a preset period of time has elapsed as a result of checking a lapse of time after cleaning the inside of the toilet bowl on the basis of illuminance change; and   (c) automatically cleaning the toilet bowl by spraying the generated sterilized water into the toilet bowl for a set period of time.   
     
     
         18 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 3 , the method comprising:
 (a) generating purified water or sterilized water using water supply when light is detected in dark conditions or darkness is detected in bright conditions during detection of illuminance change by using an optical sensor, and cleaning the inside of the toilet bowl;   (b) generating sterilized water using water supply when a preset period of time has elapsed as a result of checking a lapse of time after cleaning the inside of the toilet bowl on the basis of illuminance change; and   (c) automatically cleaning the toilet bowl by spraying the generated sterilized water into the toilet bowl for a set period of time.   
     
     
         19 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 4 , the method comprising:
 (a) generating purified water or sterilized water using water supply when light is detected in dark conditions or darkness is detected in bright conditions during detection of illuminance change by using an optical sensor, and cleaning the inside of the toilet bowl;   (b) generating sterilized water using water supply when a preset period of time has elapsed as a result of checking a lapse of time after cleaning the inside of the toilet bowl on the basis of illuminance change; and   (c) automatically cleaning the toilet bowl by spraying the generated sterilized water into the toilet bowl for a set period of time.   
     
     
         20 . A method for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat by using the device for automatically sterilizing and cleaning inside of a toilet bowl under a bidet seat of  claim 2 , the method comprising:
 (a) generating purified water using water supply when a set period of time elapses after seating is detected and then cancelled by a seating sensor; and   (b) automatically cleaning the toilet bowl by spraying the generated purified water into the toilet bowl for a set period of time.