Steuerung für einen Hochdurchsatzspender

Details

Veröffentlichungs-Nr.

EP4786787

Anmeldetag

30. Januar 2025

Veröffentlichung

5. August 2026

Rechtsraum

EP

IPC

F04B43/04

Abstract

The present disclosure provides a controller for a pump assembly (100). The pump assembly comprises: a substrate (102) having a first surface (104) and an opposite second surface (106); a plurality of layers (108) on the first surface of the substrate, the plurality of layers comprising a piezoelectric actuator (112) providing a piezoelectric body (118) and first and second electrodes (116, 120) in contact with the piezoelectric body, at least one of the first and second electrodes being electrically connected to the controller, and wherein the plurality of layers comprises a moveable portion (124); and at least one pump passage (126) defined by the pump assembly. The controller is configured to cause a first driving signal to be received at the piezoelectric actuator at a first time and cause a second driving signal to be received at the piezoelectric actuator at a second time, after the first time. The piezoelectric actuator is configured to cause movement of the moveable portion in response to receipt of the first driving signal at the piezoelectric actuator to thereby cause a first volume of the liquid to be pumped via the at least one pump passage. The piezoelectric actuator is further configured to cause movement of the moveable portion in response to receipt of the second driving signal at the piezoelectric actuator to thereby cause a second volume of the liquid to be pumped via the at least one pump passage. In this aspect, the time between the first time and the second time is less than the time from the first time in which the moveable portion would naturally come to rest after the movement caused in response to receipt of the first driving signal at the piezoelectric actuator, and more than 50% of the movement of the moveable portion caused in response to receipt of the first driving signal at the piezoelectric actuator, after the second time, would be in the same direction as the movement of the moveable portion caused in response to receipt of the second driving signal at the piezoelectric actuator were the moveable portion to be stationary at the second time.

Anmelder

Firma

3C Project Technologies Limited

Land

🇮🇪 Irland

Fachgebiete