Cleaning robot system and operating method thereof

Abstract

A cleaning robot system includes a cleaning robot and a charging dock. The cleaning robot carries a first battery. The charging dock magnetically attracts a second battery and charges the second battery. When the cleaning robot is electrically connected to the charging dock and an electrical quantity of the first battery is lower than a default electrical quantity, the charging dock magnetically attracts the first battery and releases the second battery and the cleaning robot carries the second battery.

What is claimed is: 
     
         1 . A cleaning robot system, comprising:
 a cleaning robot, carrying a first battery; and   a charging dock, magnetically attracting a second battery and charging the second battery,   wherein when the cleaning robot is electrically connected to the charging dock and an electrical quantity of the first battery is lower than a default electrical quantity, the charging dock magnetically attracts the first battery and releases the second battery, and the cleaning robot carries the second battery.   
     
     
         2 . The cleaning robot system according to  claim 1 , wherein each of the first battery and the second battery has a first magnetic conduction part, the charging dock has a fixed base and a stretchable base, the stretchable base is connected to the fixed base in a stretchable manner, the fixed base has a plurality of first electromagnets, the stretchable base has a plurality of first battery slots, the cleaning robot has a main body and a plurality of second battery slots, the second battery slots are configured at one side of the main body, when the cleaning robot is electrically connected to the charging dock and the electrical quantity of the first battery is lower than the default electrical quantity, one of the first electromagnets magnetically attracts the first magnetic conduction part of the first battery and another one of the first electromagnets releases the first magnetic conduction part of the second battery, such that when the cleaning robot moves away from the charging dock, the first battery is configured in one of the first battery slots, and the second battery is configured in one of the second battery slots. 
     
     
         3 . The cleaning robot system according to  claim 2 , wherein the stretchable base further comprises a second electromagnet, the cleaning robot further comprises a second magnetic conduction part, the second magnetic conduction part is disposed on a side surface of the main body, and the second electromagnet is configured to magnetically attract the second magnetic conduction part. 
     
     
         4 . The cleaning robot system according to  claim 3 , wherein the charging dock has a control circuit, the control circuit is electrically connected to the first electromagnets and the second electromagnets, the control circuit is configured to respectively control currents provided to the first electromagnets and the second electromagnets. 
     
     
         5 . The cleaning robot system according to  claim 2 , wherein the cleaning robot further comprises a plurality of first fixing members, the first fixing members are respectively disposed in the second battery slots, and each of the first battery and the second battery comprises a second fixing member, wherein when the first battery and the second battery are respectively configured in the second battery slots, the second fixing members are configured to respectively fix the first fixing members. 
     
     
         6 . The cleaning robot system according to  claim 2 , wherein the fixed base further comprises a plurality of first electrode sets, and each of the first battery and the second battery comprises a second electrode set, and the second electrode sets are configured to respectively correspondingly connected to the first electrode sets. 
     
     
         7 . The cleaning robot system according to  claim 6 , wherein the cleaning robot further comprises a plurality of trenches, the trenches are respectively connected to the second battery slots, and when the cleaning robot is electrically connected to the charging dock, the first electrode sets of the fixed base respectively penetrate through the trenches and are respectively connected to the second electrode sets. 
     
     
         8 . The cleaning robot system according to  claim 2 , wherein the charging dock further comprises a motor, a gear connected to the motor and a gear rack engaged to the gear, the gear is disposed on one of the fixed base and the stretchable base, and the gear rack is disposed on another one of the fixed base and the stretchable base. 
     
     
         9 . The cleaning robot system according to  claim 2 , wherein the first battery or the second battery comprises a wing-like portion, each of the first battery slots comprises a first guide rail corresponding to the wing-like portion, each of the second battery slots comprises a second guide rail corresponding to the wing-like portion, when the first battery or the second battery enters one of the first battery slots, the wing-like portion slides in the first guide rail, and when the first battery or the second battery enters one of the second battery slots, the wing-like portion slides in the second guide rail. 
     
     
         10 . The cleaning robot system according to  claim 2 , wherein an outer surface contour of the first battery or the second battery exposed out of the second battery slots corresponds to a side surface contour of the cleaning robot. 
     
     
         11 . An operating method of a cleaning robot system, comprising:
 carrying a first battery by a cleaning robot;   magnetically attracting a second battery by a charging dock to charge the second battery; and   when the cleaning robot is electrically connected to the charging dock and an electrical quantity of the first battery is lower than a default electrical quantity, magnetically attracting the first battery and releasing the second battery by the charging dock, so that the cleaning robot carries the second battery.   
     
     
         12 . The operating method of a cleaning robot system according to  claim 11 , further comprising:
 magnetically attracting the cleaning robot by a stretchable base of the charging dock; and   stretching the stretchable base into an internal space of the charging dock, such that the cleaning robot is electrically connected to the charging dock.   
     
     
         13 . The operating method of a cleaning robot system according to  claim 11 , wherein each of the first battery and the second battery has a first magnetic conduction part, the charging dock comprises a fixed base and a stretchable base, the stretchable base is connected to the fixed base in a stretchable manner, the fixed base has a plurality of first electromagnets, the stretchable base has a plurality of first battery slots, the cleaning robot has a plurality of second battery slots, when the cleaning robot is electrically connected to the charging dock and the electrical quantity of the first battery is lower than the default electrical quantity, one of the first electromagnets magnetically attracts the first magnetic conduction part of the first battery and another one of the first electromagnets releases the first magnetic conduction part of the second battery, such that when the cleaning robot moves away from the charging dock, the first battery is configured in one of the first battery slots, and the second battery is configured in one of the second battery slots. 
     
     
         14 . The operating method of a cleaning robot system according to  claim 13 , further comprising:
 when the cleaning robot has a dual-battery demand, releasing the first magnetic conduction parts by the first electromagnets, and carrying the first battery and the second battery by the cleaning robot.