MICROPUMP

• US 20130287614A1
• Filed: 06/27/2013
• Published: 10/31/2013
• Est. Priority Date: 08/20/2008
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: MIYAZAKI, Hajime, KAWASUMI, Kazuo
• Granted Patent: US 9,657,731 B2
• Time in Patent Office: Days
• US Class Current: 417/477.6
• CPC Class Codes: F04B 43/082 the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
• CPC Class Codes: F04B 43/1261 the rollers being placed at the outside of the tubular flexible member
• CPC Class Codes: F04B 43/1276 Means for pushing the rollers against the tubular flexible member
• CPC Class Codes: F04B 43/1284 Means for pushing the backing-plate against the tubular flexible member

Abstract

A micropump including a tube unit and a control unit. The control unit has a plurality of fingers. A cam sequentially presses the plurality of fingers from an inlet side to an outlet side of the tube. A drive unit gives rotation force to the cam, a control circuit unit controls operation of the drive unit, and a device frame holds the plurality of fingers, the cam, the drive unit, and the control circuit unit. A reservoir communicates with an inlet port of the tube; and a power source supplies power to the control circuit unit, wherein the tube unit is detachably attached to the control unit substantially in the horizontal direction with respect to the rotation surface of the cam and attached to the inside of a space produced by the device frame.

Claims

1. A micropump comprising:

a tube unit which includes a tube; and

a control unit which includes a cam and a plurality of fingers;

wherein the plural fingers are located between the tube and the cam when the tube unit is coupled to the control unit.

2. The micropump according to claim 1,

wherein the tube unit has a reservoir communicating with the tube.