Ion generating device and method for manufacturing ion generating device

Patent metadata

Field	Value
Publication number	US-10980909-B2
Application number	US-201615753672-A
Country	US
Kind code	B2
Filing date	Oct 13, 2016
Priority date	Mar 28, 2016
Publication date	Apr 20, 2021
Grant date	Apr 20, 2021

Abstract

An ion generating device (1) includes discharge electrodes (21⋅22) each having a plurality of electrically conductive members (25⋅26) which form respective tip surfaces (36⋅37). A longer dimension direction of the tip surfaces (36⋅37) is nonparallel to an air sending direction (A). This allows for efficient release of ions.

First claim

The invention claimed is:

1. An ion generating device comprising:
a discharge electrode for generating ions by electric discharge,
the discharge electrode including (i) a tip part having a plurality of linear electrically conductive members, (ii) a binding part for binding together respective base end parts of the plurality of linear electrically conductive members, and (iii) a mounting part for mounting the binding part on the ion generating device,
the plurality of linear electrically conductive members forming a tip surface which is shaped so as to have a longer dimension direction and a shorter dimension direction,
an air sending direction, in which gas is sent to the discharge electrode in order to carry the ions, being nonparallel to the longer dimension direction of the tip surface,
wherein the tip surface has a plurality of ridge-shaped portions, each of the plurality of ridge-shaped portions comprising the plurality of linear electrically conductive members.

2. The ion generating device according to claim 1 , wherein the longer dimension direction of the tip surface is perpendicular to the air sending direction.

3. The ion generating device according to claim 1 , wherein:
the discharge electrode includes two discharge electrodes; and
a direction along which the two discharge electrodes are arranged is perpendicular to the air sending direction.

4. The ion generating device according to claim 1 , further comprising a resin with which to seal a base end part of the mounting part,
the mounting part including (i) an extending part which extends from the base end part of the mounting part to a connection end of the mounting part at which connection end the mounting part connects to the binding part and (ii) a structure which is provided to the extending part and has a shape differing from that of the extending part.

5. The ion generating device according to claim 4 , wherein the structure includes at least one of a protrusion from the extending part, a depression in the extending part, and an opening formed in the extending part.

6. A method for producing the ion generating device recited in claim 5 , comprising the step of:
forming the resin by curing a liquid resin material.

7. The ion generating device according to claim 1 , further comprising a cleaning member provided upwind of the discharge electrode in the air sending direction, the cleaning member being configured to clean a discharge section of the discharge electrode by being driving by air, sent in the air sending direction, so as to come into contact with the discharge section.

8. The ion generating device according to claim 1 , wherein: the plurality of linear electrically conductive members of the tip part each have an outside diameter of not less than 5 μm and not more than 30 μm.

9. An ion generating device comprising:
a discharge electrode for generating ions by electric discharge,
the discharge electrode including (i) a tip part having a plurality of linear electrically conductive members, (ii) a binding part for binding together respective base end parts of the plurality of linear electrically conductive members, and (iii) a mounting part for mounting the binding part on the ion generating device,
the plurality of linear electrically conductive members forming a tip surface which is shaped so as to have a longer dimension direction and a shorter dimension direction,
an air sending direction, in which gas is sent to the discharge electrode in order to carry the ions, being nonparallel to the longer dimension direction of the tip surface, wherein:
the tip surface is formed by respective tip surfaces of the plurality of linear electrically conductive members which are bound together;
the ion generating device comprises two discharge electrodes; and
a tip surface of each of the two discharge electrodes is inclined downwards toward the other of the two discharge electrodes which is opposite the each of the two discharge electrodes.

10. An ion generating device comprising:
a discharge electrode for generating ions by electric discharge,
the discharge electrode including (i) a tip part having a plurality of linear electrically conductive members, (ii) a binding part for binding together respective base end parts of the plurality of linear electrically conductive members, and (iii) a mounting part for mounting the binding part on the ion generating device,
the plurality of linear electrically conductive members forming a tip surface which is shaped so as to have a longer dimension direction and a shorter dimension direction,
an air sending direction, in which gas is sent to the discharge electrode in order to carry the ions, being nonparallel to the longer dimension direction of the tip surface, wherein
the ion generating device further comprising a cleaning member provided upwind of the discharge electrode in the air sending direction, the cleaning member being configured to clean a discharge section of the discharge electrode by being driving by air, sent in the air sending direction, so as to come into contact with the discharge section.

Assignees

• Sharp Kk

Inventors

• Okano Satoshi
• Ezaki Tetsuya
• Matsuyama Takahiro
• Ohe Nobuyuki
• Yamashita Mitsuyoshi
• Taniguchi Minako

Classifications

• A61L2209/11

  Apparatus for controlling air treatment · CPC title

• H01T23/00 Primary

  Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere · CPC title

• H01T19/04

  having pointed electrodes · CPC title

• A61L9/22 Primary

  Ionisation · CPC title

• F24F8/30

  by ionisation · CPC title