Touch free automatic type water supply device and spare part system thereof

Abstract

A touch free automatic type water supply device is adapted to be installed at a faucet. The faucet includes an outlet. The touch free automatic type water supply device includes: a shell including an inlet, a flow channel and an outlet, wherein the inlet of the shell is adapted to be communicated with the outlet of the faucet; a control circuit adapted to sense an external object and then to generate a control signal; and a driving unit, whose an end is disposed in the shell, and is physically connected to an end of the flow channel, wherein the driving unit is electrically connected to the control circuit for controlling water flow rate of the outlet or automatically switching on/off water supply of the outlet according to the control signal.

What is claimed is: 
     
         1 . A touch free automatic type water supply device adapted to be installed at a faucet, the faucet including an outlet, the touch free automatic type water supply device comprising:
 a shell comprising an inlet, a flow channel and an outlet, wherein the outlet is communicated with the inlet through the flow channel, there is a predetermined angle between a centre line of the inlet and a centre line of the flow channel, and the inlet of the shell is adapted to be communicated with the outlet of the faucet;   a control circuit adapted to sense an external object and then to generate a control signal; and   a driving unit, whose an end is disposed in the shell, and is physically connected to an end of the flow channel, wherein the driving unit is electrically connected to the control circuit for controlling water flow rate of the outlet or automatically switching on/off water supply of the outlet according to the control signal.   
     
     
         2 . The touch free automatic type water supply device according to  claim 1 , wherein the driving unit comprises:
 a motor electrically connected to the control circuit; and   a valve core comprises:
 a control rod mechanically connected to the motor; and 
 a throttling plate assembled to the control rod, and having a through aperture corresponding to the outlet, whereby when the control rod rotates the throttling plate, the overlapping area between the through aperture and the outlet is adjusted. 
   
     
     
         3 . The touch free automatic type water supply device according to  claim 1 , wherein the driving unit is a solenoid valve. 
     
     
         4 . The touch free automatic type water supply device according to  claim 1 , wherein the control circuit comprises:
 a first sensor adapted to sense an external object located below the outlet of the shell; and   a second sensor adapted to sense an external object located beside the shell.   
     
     
         5 . The touch free automatic type water supply device according to  claim 4 , wherein the control circuit further comprises:
 a third sensor also adapted to sense the external object located beside the shell, wherein the sensing direction of the third sensor is the same as that of the second sensor.   
     
     
         6 . The touch free automatic type water supply device according to  claim 1 , wherein the control circuit further comprises a light display unit for displaying different light according to a condition of the water flow rate of the outlet. 
     
     
         7 . The touch free automatic type water supply device according to  claim 1 , wherein the predetermined angle is 90 degrees. 
     
     
         8 . A spare part system of a touch free automatic type water supply device, comprising:
 a first touch free automatic type water supply device comprising:
 a first shell comprising a first inlet, a first flow channel and a first outlet, wherein the first outlet is communicated with the first inlet through the first flow channel, and there is a predetermined angle between a centre line of the first inlet and a centre line of the first flow channel; 
 a first control circuit adapted to sense an external object and then to generate a first control signal; and 
 a first driving unit, whose an end is disposed in the first shell, and is physically connected to an end of the first flow channel, wherein the first driving unit is electrically connected to the first control circuit for controlling water flow rate of the first outlet or automatically switching on/off water supply of the first outlet according to the first control signal, and the first driving unit comprises a motor and a valve core; and 
   a second touch free automatic type water supply device comprising:
 a second shell comprising a second inlet, a second flow channel and a second outlet, wherein the second outlet is communicated with the second inlet through the second flow channel, and there is a predetermined angle between a centre line of the second inlet and a centre line of the second flow channel; 
 a second control circuit adapted to sense an external object and then to generate a second control signal; and 
 a second driving unit, whose an end is disposed in the second shell, and is physically connected to an end of the second flow channel, wherein the second driving unit is electrically connected to the second control circuit for automatically switching on/off water supply of the second outlet according to the second control signal, and the second driving unit is a solenoid valve; 
   wherein the first shell is the same as the second shell.   
     
     
         9 . The spare part system of the touch free automatic type water supply device according to  claim 8 , wherein:
 the first touch free automatic type water supply device further comprises a first envelope lid, and the other end of the first driving unit and the first control circuit are disposed in the first envelope lid; and   the second touch free automatic type water supply device further comprises a second envelope lid, and the other end of the second driving unit and the second control circuit are disposed in the second envelope lid;   wherein the first envelope lid is the same as the second envelope lid.   
     
     
         10 . The spare part system of the touch free automatic type water supply device according to  claim 9 , wherein:
 the first touch free automatic type water supply device further comprises a first battery container electrically connected to the first control circuit and the first driving unit, and also disposed in the first envelope lid; and   the second touch free automatic type water supply device further comprises a second battery container electrically connected to the second control circuit and the second driving unit, and also disposed in the second envelope lid;   wherein the first battery container is the same as the second battery container.   
     
     
         11 . A touch free automatic type water supply device adapted to be installed at a faucet, the faucet including an outlet, the touch free automatic type water supply device comprising:
 a shell comprising an inlet, a flow channel and an outlet, wherein the outlet is communicated with the inlet through the flow channel, the centre lines of the inlet, the flow channel and the outlet are the same, and the inlet of the shell is adapted to be communicated with the outlet of the faucet;   a control circuit adapted to sense an external object and then to generate a control signal; and   a driving unit, whose an end is disposed in the shell, and is physically connected to an end of the flow channel, wherein the driving unit is electrically connected to the control circuit for controlling water flow rate of the outlet or automatically switching on/off water supply of the outlet according to the control signal.   
     
     
         12 . The touch free automatic type water supply device according to  claim 11 , wherein the driving unit comprises:
 a motor electrically connected to the control circuit; and   a valve core comprises:
 a control rod mechanically connected to the motor; and 
 a throttling plate assembled to the control rod, and having a through aperture corresponding to the outlet, whereby when the control rod rotates the throttling plate, the overlapping area between the through aperture and the outlet is adjusted. 
   
     
     
         13 . The touch free automatic type water supply device according to  claim 11 , wherein the driving unit is a solenoid valve. 
     
     
         14 . The touch free automatic type water supply device according to  claim 11 , wherein the control circuit comprises:
 a first sensor adapted to sense an external object located below the outlet of the shell; and   a second sensor adapted to sense an external object located beside the shell.   
     
     
         15 . The touch free automatic type water supply device according to  claim 14 , wherein the control circuit further comprises:
 a third sensor also adapted to sense the external object located beside the shell, wherein the sensing direction of the third sensor is the same as that of the second sensor.   
     
     
         16 . The touch free automatic type water supply device according to  claim 11 , wherein the control circuit further comprises a light display unit for displaying different light according to a condition of the water flow rate of the outlet.