Water droplet generating apparatus

Patent metadata

Field	Value
Publication number	US-11498086-B2
Application number	US-201816613746-A
Country	US
Kind code	B2
Filing date	Apr 9, 2018
Priority date	May 31, 2017
Publication date	Nov 15, 2022
Grant date	Nov 15, 2022

Abstract

An apparatus is provided for generating water droplets. The apparatus includes: a condensation rod for condensing water vapor in air around the condensation rod on the condensation rod, the condensation rod being a cylinder that is rotationally symmetric about a central axis, and a circumferential surface of the cylinder being a condensing surface for aggregating condensed water; a cooling device being in contact with the condensation rod for cooling the condensation rod; an atomizing electrode; and a high voltage power supply for applying a high voltage to the atomizing electrode, and causing the condensed water on the condensation rod to be excited by a high pressure corona to form atomized water.

First claim

What is claimed is:

1. An apparatus for generating water droplets, comprising:
a condensation rod for condensing water vapor in air around the condensation rod on the condensation rod, the condensation rod being a cylinders having respective stairs and being rotationally symmetric about a central axis, and a circumferential surface of a cylinder being a condensing surface for aggregating condensed water;
a cooling device being in contact with the condensation rod for cooling the condensation rod;
an atomizing electrode; and
a voltage power supply for applying a voltage to the atomizing electrode, and causing the condensed water on the condensation rod to be excited by a pressure corona to form atomized water droplets,
wherein the condensing surface is provided with a water collecting groove, and the water collecting groove is an annular water collecting groove that is recessed around the condensing surface to ensure uniform condensed water volume in the water collecting groove,
wherein the atomizing electrode comprises an emitter and a counter pole, the emitter and the counter pole are respectively disposed on two sides of the condensation rod, the emitter and the counter pole are set parallel to each other and respectively parallel with the condensation rod, and the voltage power supply is connected between the emitter and the counter pole.

2. The apparatus according to claim 1 , wherein a top of the condensation rod has a water collecting end that expands outward from the condensing surface, and a diameter of an outer edge of the water collecting end is larger than a circumferential diameter of the condensing surface.

3. The apparatus according to claim 2 , wherein a top surface of the water collecting end is flat.

4. The apparatus according to claim 1 , wherein the water collecting end is transitionally connected to the condensing surface via a concave arc.

5. The apparatus according to claim 1 , wherein the condensing surface of the condensation rod has a flow hindering stair with a gradually increasing outer circumference from top to bottom.

6. An apparatus for generating water droplets, comprising:
a condensation rod for condensing water vapor in air around the condensation rod on the condensation rod, the condensation rod being a cylinders having respective stairs and being rotationally symmetric about a central axis, and a circumferential surface of a cylinder being a condensing surface for aggregating condensed water;
a cooling device being in contact with the condensation rod for cooling the condensation rod;
an atomizing electrode; and
a voltage power supply for applying a voltage to the atomizing electrode, and causing the condensed water on the condensation rod to be excited by a pressure corona to form atomized water droplets,
wherein the condensing surface is provided with a water collecting groove, the water collecting groove is a longitudinal water collecting groove disposed along an axial direction of the condensation rod, and the longitudinal water collecting groove is arranged along a circumference of the condensing surface,
wherein the atomizing electrode comprises an emitter and a counter pole, the emitter and the counter pole are respectively disposed on two sides of the condensation rod, the emitter and the counter pole are set parallel to each other and respectively parallel with the condensation rod, and the voltage power supply is connected between the emitter and the counter pole.

7. The apparatus according to claim 6 , wherein a top of the condensation rod has a water collecting end that expands outward from the condensing surface, and a diameter of an outer edge of the water collecting end is larger than a circumferential diameter of the condensing surface.

8. The apparatus according to claim 7 , wherein a top surface of the water collecting end is flat.

9. The apparatus according to claim 6 , wherein the water collecting end is transitionally connected to the condensing surface via a concave arc.

10. The apparatus according to claim 6 , wherein the condensing surface of the condensation rod has a flow hindering stair with a gradually increasing outer circumference from top to bottom.

Assignees

• Leshow Electronic Tech Co Ltd
• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Xiao Zhaoxian

Classifications

• B05B5/057

  Arrangements for discharging liquids or other fluent material without using a gun or nozzle · CPC title

• B05B5/025 Primary

  Discharge apparatus, e.g. electrostatic spray guns · CPC title

• B05B5/0255 Primary

  spraying and depositing by electrostatic forces only · CPC title

• H01T19/00

  Devices providing for corona discharge (for charging electrographic elements G03G15/02) · CPC title

• B05B5/0536

  Dimensional characteristics of electrodes, e.g. diameter or radius of curvature of a needle-like corona electrode · CPC title