Fluidics pumping device

Abstract

A fluidics pumping device including a body and a driving assembly is provided. The body has a chamber, a channel, an inlet and an outlet. The channel goes through the chamber and connects with the inlet and the outlet. The driving assembly is disposed in the chamber, and the driving assembly has a contact surface exposed in the channel. The contact surface is suitable for moving along an extension direction of the channel, for driving a fluid in the channel.

What is claimed is: 
     
         1 . A fluidics pumping device, comprising:
 a body having a chamber, a channel, an inlet and an outlet, wherein the channel goes through the chamber and connects the inlet and the outlet; and   a driving assembly disposed in the chamber and having a contact surface exposed in the channel, wherein the contact surface is adapted to move along an extension direction of the channel to drive a fluid in the channel.   
     
     
         2 . The fluidics pumping device as claimed in  claim 1 , wherein an inner surface of the chamber is hydrophobic or smooth. 
     
     
         3 . The fluidics pumping device as claimed in  claim 1 , wherein the contact surface is hydrophilic or rough or is provided with a plurality of microstructures. 
     
     
         4 . The fluidics pumping device as claimed in  claim 1 , wherein a width of the channel is greater than or equal to 0.1 mm and is smaller than or equal to 3 mm. 
     
     
         5 . The fluidics pumping device as claimed in  claim 1 , wherein the driving assembly comprises a rotor having an outer surface serving as the contact surface, and the outer wall is spaced from an inner wall of the chamber to form the channel. 
     
     
         6 . The fluidics pumping device as claimed in  claim 5 , wherein the rotor is a cylinder provided with two end surfaces each having a center through which a shaft of the rotor passes, and a portion of a lateral surface of the cylinder is exposed in the channel to serve as the contact surface. 
     
     
         7 . The fluidics pumping device as claimed in  claim 5 , further comprising a driving motor located outside the body and connected to the rotor to drive the rotor. 
     
     
         8 . The fluidics pumping device as claimed in  claim 1 , wherein the driving assembly comprises:
 a first rotor; and   a second rotor, wherein the first rotor and the second rotor are respectively located at two opposite sides of the channel and adapted to rotate in opposite directions, a first outer surface of the first rotor and a second outer surface of the second rotor mutually serve as the contact surface and are spaced from each other to form the channel.   
     
     
         9 . The fluidics pumping device as claimed in  claim 8 , wherein the first rotor is a cylinder provided with two end surfaces each having a center through which a first shaft of the first rotor passes, the second rotor is a cylinder provided with two end surfaces each having a center through which a second shaft of the second rotor passes, the first shaft and the second shaft are substantially parallel to each other, and a portion of a lateral surface of the first rotor and a portion of a lateral surface of the second rotor are respectively exposed at two opposite sides of the channel to mutually serve as the contact surface. 
     
     
         10 . The fluidics pumping device as claimed in  claim 9 , further comprising:
 a driving motor located outside the body and connected to the first rotor to drive the first rotor; and   a gear set connecting the first rotor and the second rotor for driving the second rotor by the first rotor.   
     
     
         11 . The fluidics pumping device as claimed in  claim 1 , wherein the driving assembly comprises:
 a first rotor;   a second rotor, wherein the first rotor and the second rotor are located at a same side of the channel and adapted to rotate in a same direction; and   a conveyor belt connecting the first rotor and the second rotor, wherein a surface of the conveyor belt serves as the contact surface, and the surface is spaced from an inner wall of the chamber to form the channel.   
     
     
         12 . The fluidics pumping device as claimed in  claim 11 , wherein the first rotor is a cylinder provided with two end surfaces each having a center through which a first shaft of the first rotor passes, the second rotor is a cylinder provided with two end surfaces each having a center through which a second shaft of the second rotor passes, and the first shaft and the second shaft are substantially parallel to each other. 
     
     
         13 . The fluidics pumping device as claimed in  claim 11 , further comprising a driving motor located outside the body and connected to the first rotor to drive the first rotor, and the second rotor is adapted to be driven by the first rotor via the conveyor belt. 
     
     
         14 . The fluidics pumping device as claimed in  claim 1 , wherein the driving assembly comprises:
 a first rotor;   a second rotor, wherein the first rotor and the second rotor are located at a first side of the channel and rotating in a first direction;   a first conveyor belt connecting the first rotor and the second rotor;   a third rotor;   a fourth rotor, wherein the third rotor and the fourth rotor are at a second side of the channel and rotating in a second direction, the first side and the second side are the two opposite sides of the channel respectively and the first direction is opposite to the second direction; and   a second conveyor belt connecting the third rotor and the fourth rotor, wherein a first surface of the first conveyor belt and a second surface of the second conveyor belt mutually serve as the contact surface and are spaced from each other to form the channel.   
     
     
         15 . The fluidics pumping device as claimed in  claim 14 , wherein the first rotor is a cylinder provided with two end surfaces each having a center through which a first shaft of the first rotor passes, the second rotor is a cylinder provided with two end surfaces each having a center through which a second shaft of the second rotor passes, the third rotor is a cylinder provided with two end surfaces each having a center through which a third shaft of the third rotor passes, the fourth rotor is a cylinder provided with two end surfaces each having a center through which a fourth shaft of the fourth rotor passes, and the first shaft, the second shaft, the third shaft and the fourth shaft are substantially parallel to each other. 
     
     
         16 . The fluidics pumping device as claimed in  claim 14 , further comprising:
 a driving motor located outside the body and connected to the first rotor to drive the first rotor, and the second rotor is adapted to be driven by the first rotor via the first conveyor belt; and   a gear set connecting the first rotor and the third rotor for driving the third rotor by the first rotor, and the fourth rotor is adapted to be driven by the third rotor via the second conveyor belt.   
     
     
         17 . The fluidics pumping device as claimed in  claim 1 , wherein the driving assembly is a rotor comprising:
 a first section adjoining the inlet, wherein a first outer surface of the first section is spaced from an inner surface of the chamber in a first distance to form a temporary liquid storing space;   a second section adjoining the outlet, wherein a second outer surface of the second section severs as the contact surface and is spaced from an inner surface of the chamber in a second distance to form a liquid output space; and   a third section connected between the first section and the second section, wherein a third outer surface of the third section has a spiral trench connecting the temporary liquid storing space and the liquid output space, a bottom surface and two side surfaces of the spiral trench together serve as the contact surface, and the bottom surface is spaced from an inner surface of the chamber in a third distance to form the channel.   
     
     
         18 . The fluidics pumping device as claimed in  claim 17 , wherein the first section, the second section and the third section are cylinders, a shaft of the rotor passes through a center of each end surface of the first section, the second section and the third section. 
     
     
         19 . The fluidics pumping device as claimed in  claim 17 , further comprising a driving motor located outside the body and connected to the rotor to drive the rotor. 
     
     
         20 . The fluidics pumping device as claimed in  claim 17 , wherein the temporary liquid storing space is larger than the liquid output space. 
     
     
         21 . The fluidics pumping device as claimed in  claim 17 , wherein the spiral trench comprises a single-spiral trench or a multi-spiral trench. 
     
     
         22 . The fluidics pumping device as claimed in  claim 17 , wherein a first outer surface is hydrophobic or smooth. 
     
     
         23 . The fluidics pumping device as claimed in  claim 17 , wherein a second outer surface is hydrophilic or rough or is provided with a plurality of microstructures. 
     
     
         24 . The fluidics pumping device as claimed in  claim 17 , wherein a bottom surface and two side surfaces of the spiral trench are hydrophilic or rough or are provided with a plurality of microstructures. 
     
     
         25 . The fluidics pumping device as claimed in  claim 17 , wherein the inner surface of the chamber is hydrophobic or smooth.