Cleaning device for cleaning an air-ionizing part of an electrode
AssigneeKoninklijke Philips N.V.
InventorJohan Marra
Life of this patent
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Abstract
A cleaning device for cleaning an air-ionizing part of an electrode. The device comprises a cleaning member arranged to be in physical contact with the air-ionizing part of the electrode, the air-ionizing part of electrode and the cleaning member being arranged to slide relative to each other. The cleaning device further comprises an actuator arranged to activate the relative motion between the air-ionizing part of the electrode and the cleaning member. There is also provided an ionization electrode comprising the air-ionizing part and the cleaning device, as well as a ultrafine particle sensor, an air ionizer or an electrostatic air cleaner comprising such an electrode.
Claims9
An ionization electrode, comprising:
- an air-ionizing part, wherein the air-ionizing part comprises a needle-tip or a thin wire;
- and
- a cleaning device for cleaning the air-ionizing part,
- wherein the cleaning device comprises:
- a cleaning member arranged to be in physical contact with a circumference of the needle-tip or the thin-wire, wherein the air-ionizing part and the cleaning member are configured to be capable of sliding relative to each other;
- and
- an actuator arranged to activate a relative motion between the air-ionizing part of the electrode and the cleaning member,
- wherein the cleaning member comprises a sheet containing at least one perforation through which the air-ionizing part slides,
- wherein the at least one perforation is substantially closed by edges in contact with each other when the needle-tip or the thin wire does not protrude through the at least one perforation, and
- wherein a shearing force applied by the cleaning member to the needle-tip or the thin-wire is depends on a thickness of the sheet.
Dependencies are inferred from the claim text.