Sterilization device

Patent metadata

Field	Value
Publication number	US-12264845-B2
Application number	US-202117911246-A
Country	US
Kind code	B2
Filing date	Mar 11, 2021
Priority date	Mar 13, 2020
Publication date	Apr 1, 2025
Grant date	Apr 1, 2025

Abstract

A sterilization device includes: a frame having a first surface into which air flows, and a second surface from which air flows out; one or more discharge electrodes disposed in the frame; and a plurality of ground electrodes alternately arranged with the discharge electrodes. The discharge electrodes each comprise: a framework extending in the direction parallel to the ground electrodes; a first discharge needle protruding toward the first surface from the framework; and a second discharge needle protruding toward the second surface from the framework. The discharge electrodes are inclined at a predetermined angle with respect to an arbitrary axis of rotation parallel to the direction in which the ground electrodes extend, such that a discharge treatment region is formed perpendicularly to a flow direction by means of the alternate arrangement of the discharge electrodes and the ground electrodes parallel to the flow direction.

First claim

The invention claimed is:

1. A sterilization device comprising:
a frame having a first surface and a second surface opposite the first surface, wherein air is introduced through the first surface and discharged through the second surface;
one or more discharge electrodes disposed within the frame; and
a plurality of ground electrodes extending in a direction that intersects with a direction extending between the first surface and the second surface,
wherein the one or more discharge electrodes and the plurality of ground electrodes are alternately arranged,
wherein each of the one or more discharge electrodes comprises:
a body extending parallel to the plurality of ground electrodes,
a first discharge needle protruding from the body toward the first surface, and
a second discharge needle protruding from the body toward the second surface, and

wherein the one or more discharge electrodes are inclined with respect to the plurality of ground electrodes.

2. The sterilization device of claim 1 , wherein the body has a first bending point curved toward the first surface and a second bending point curved toward the second surface such that the body extends in a zigzag shape.

3. The sterilization device of claim 2 , wherein the first discharge needle protrudes from the second bending point, and wherein the second discharge needle protrudes from the first bending point.

4. The sterilization device of claim 2 , wherein (i) an imaginary line extending between an end of the first discharge needle and the first bending point and (ii) an imaginary line extending between an end of the second discharge needle and the second bending point are parallel to a longitudinal direction of the body.

5. The sterilization device of claim 1 , wherein the body, the first discharge needle, and the second discharge needle are positioned at a same plane.

6. The sterilization device of claim 1 , wherein a distance between one of two ground electrodes of the plurality of ground electrodes that is adjacent to the one or more discharge electrodes and an end of the first discharge needle is equal to a distance between the other of the two ground electrodes that is adjacent to the one or more discharge electrodes and an end of the second discharge needle.

7. The sterilization device of claim 1 , wherein an angle of each of the one or more discharge electrodes being inclined with respect to the plurality of ground electrodes is in a range of 10° to 20°.

8. The sterilization device of claim 1 , wherein a distance between one of two ground electrodes of the plurality of ground electrodes that is adjacent to the one or more discharge electrodes and an end of the first discharge needle, and a distance between the other of the two ground electrodes that is adjacent to the one or more discharge electrodes and an end of the second discharge needle are in a range of 4 mm to 9 mm.

9. The sterilization device of claim 1 , wherein the frame comprises a partition wall that divides an interior of the frame into a first sterilization region and a second sterilization region, and
wherein the one or more discharge electrodes and the plurality of ground electrodes are distributed and disposed between the first sterilization region and the second sterilization region.

10. The sterilization device of claim 9 , wherein the first sterilization region and the second sterilization region are symmetrical with respect to the partition wall.

11. The sterilization device of claim 9 , wherein the one or more discharge electrodes includes a first discharge electrode and a second discharge electrode,
wherein the first discharge electrode passes through a center of the partition wall, is disposed above an imaginary center line orthogonal to the partition wall, and is inclined downward toward the second surface, and
wherein the second discharge electrode is disposed below the imaginary center line and is inclined upward toward the second surface.

12. The sterilization device of claim 9 , further comprising:
a wire configured to apply a voltage to the one or more discharge electrodes; and
a ground wire connecting the plurality of ground electrodes,
wherein at least one of the wire or the ground wire is disposed at the partition wall.

13. A sterilization device comprising:
a frame positioned at an air flow path;
one or more discharge electrodes disposed within the frame; and
a plurality of ground electrodes extending in a direction that intersects with an air flow direction along the air flow path,
wherein the one or more discharge electrodes and the plurality of ground electrodes are alternately arranged,
wherein each of the one or more discharge electrodes comprises:
a body extending parallel to the plurality of ground electrodes,
a first discharge needle protruding from the body toward an upstream of the air flow direction, and
a second discharge needle protruding from the body toward a downstream of the air flow direction, and

wherein each of the one or more discharge electrodes is inclined with respect to the plurality of ground electrodes.

14. The sterilization device of claim 13 , wherein the frame has a first surface and a second surface opposite the first surface,
wherein air is introduced through the first surface and discharged through the second surface, and
wherein the body has a first bending point curved toward the first surface and a second bending point curved toward the second surface such that the body extends in a zigzag shape.

15. The sterilization device of claim 14 , wherein the first discharge needle protrudes from the second bending point, and wherein the second discharge needle protrudes from the first bending point.

16. The sterilization device of claim 14 , wherein (i) an imaginary line extending between an end of the first discharge needle and the first bending point and (ii) an imaginary line extending between an end of the second discharge needle and the second bending point are parallel to a longitudinal direction of the body.

17. The sterilization device of claim 13 , wherein a distance between one of two ground electrodes of the plurality of ground electrodes that is adjacent to the one or more discharge electrodes and an end of the first discharge needle is equal to a distance between the other of the two ground electrodes that is adjacent to the one or more discharge electrodes and an end of the second discharge needle.

18. The sterilization device of claim 13 , wherein an angle of each of the one or more discharge electrodes being inclined with respect to the plurality of ground electrodes is in a range of 10° to 20°.

19. The sterilization device of claim 13 , wherein a distance between one of two ground electrodes of the plurality of ground electrodes that is adjacent to the one or more discharge electrodes and an end of the first discharge needle, and a distance between the other of the two ground electrodes that is adjacent to the one or more discharge electrodes and an end of the second discharge needle are in a range of 4 mm to 9 mm.

20. The sterilization device of claim 13 , wherein the frame comprises a partition wall that divides an interior of the frame into a first sterilization region and a second sterilization region, and
wherein the one or more discharge electrodes and the plurality of ground electrodes are distributed and disposed between the first sterilization region and the second sterilization region.

21. The sterilization device of claim 13 , wherein the body, the first discharg

Assignees

• Lg Electronics Inc

Inventors

• Son Ilna
• Sung Bongjo

Classifications

• F24F8/30

  by ionisation · CPC title

• F24F8/20 Primary

  by sterilisation · CPC title

• A61L2209/134

  Distributing means, e.g. baffles, valves, manifolds, nozzles · CPC title

• A61L2209/16

  Connections to a HVAC unit · CPC title

• F24F3/16

  by purification, e.g. by filtering; by sterilisation; by ozonisation · CPC title