Magnetron cooling fin and magnetron having the same

Patent metadata

Field	Value
Publication number	US-9991083-B2
Application number	US-201715440149-A
Country	US
Kind code	B2
Filing date	Feb 23, 2017
Priority date	Feb 23, 2016
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

A magnetron cooling fin has a flat plate shape in which one or a plurality of corrugated regions are formed in a body of the magnetron cooling fin to improve cooling efficiency thereof. A magnetron cooling fin in which a corrugated region processed to increase a contact area in contact with air is formed around a through-hole through which an anode unit of a magnetron passes, thereby improving cooling efficiency thereof.

First claim

What is claimed is:

1. A magnetron cooling fin comprising:
a body including a through-hole configured to allow an anode unit of a magnetron to pass through, a fin collar bent in a first direction at an edge of the through-hole, and a plurality of oval-shaped regions positioned around the through-hole and protruding from the body in a direction opposite to the first direction; and
a plurality of fins extending from the body,
wherein a distance from a center point of the through-hole to a center point of each of the plurality of oval-shaped regions is larger than a radius of the through-hole.

2. The magnetron cooling fin of claim 1 , wherein the distance from the center point of the through-hole to the center point of each of the plurality of oval-shaped regions is greater than a vertical length of the body in the first direction.

3. The magnetron cooling fin of claim 1 , wherein the distance from the center point of the through-hole to the center point of each of the plurality of oval-shaped regions is less than a transverse length of the body in a direction perpendicular to the first direction.

4. The magnetron cooling fin of claim 1 , wherein a height of the fin collar in the first direction is greater than a depth of protrusion in the direction opposite to the first direction of each of the plurality of oval-shaped regions.

5. The magnetron cooling fin of claim 1 , wherein an angle between the center point of one of the plurality of oval-shaped regions and a center axis, parallel with the body, of the body relative to the center point of the through-hole is greater than 25° and less than 65°.

6. The magnetron cooling fin of claim 1 , wherein a length of a long axis, parallel with the body, of each of the plurality of oval-shaped regions is more than 1.4 times and less than 2.8 times a length of a short axis, parallel with the body, of each of the plurality of oval-shaped regions.

7. The magnetron cooling fin of claim 1 , wherein a long axis of each of the plurality of oval-shaped regions is inclined with respect to a center axis, parallel with the body, of the body.

8. The magnetron cooling fin of claim 1 , wherein one of the distance from the center point of the through-hole to the center point of each of the plurality of oval-shaped regions and an angle between the center point of one of the plurality of oval-shaped regions and a center axis, parallel with the body, of the body, of the body relative to the center point of the through-hole is based on a total number of the plurality of oval-shaped regions.

9. A magnetron cooling fin comprising:
a body including a through-hole configured to allow an anode unit of a magnetron to pass through, a fin collar provided at an edge of the through-hole, and a first corrugated region provided around an outer perimeter of the fin collar; and
a plurality of fins extending from the body,
wherein a diameter of the through-hole is less than an outer diameter of the first corrugated region.

10. The magnetron cooling fin of claim 9 , wherein a height in an axial direction of the fin collar is greater than a height of the first corrugated region in the axial direction.

11. The magnetron cooling fin of claim 9 , wherein the first corrugated region includes a stepped portion, and the outer diameter of the first corrugated region is greater than an outer diameter of the stepped portion.

12. The magnetron cooling fin of claim 9 , wherein a shape of the first corrugated region is at least one of a circular shape and an elliptical shape.

13. The magnetron cooling fin of claim 9 , wherein the body further comprises:
a plurality of second corrugated regions positioned around an outer diameter of the first corrugated region.

14. The magnetron cooling fin of claim 13 , wherein the plurality of second corrugated regions guide a flow of air.

15. The magnetron cooling fin of claim 13 , wherein a shape of each of the plurality of second corrugated regions is a truncated pyramid shape.

16. The magnetron cooling fin of claim 13 , wherein a height, parallel to an axial direction of the through-hole, of the second corrugated region is less than a height in the axial direction of the fin collar.

17. The magnetron cooling fin of claim 13 , wherein the first corrugated region and each of the plurality of second corrugated regions are spaced apart from each other.

18. The magnetron cooling fin of claim 13 , further comprising:
a bump formed on an upper surface of each of the plurality of second corrugated regions.

19. A magnetron cooling fin comprising:
a body including a through-hole configured to allow an anode unit of a magnetron to pass through, a fin collar provided at an edge of the through-hole, and a plurality of first corrugated regions provided around and spaced apart from an outer perimeter of the fin collar by a predetermined interval and positioned at an edge region of the body; and
a plurality of fins extending from the body,
wherein the predetermined interval is less than a transverse length of each of the plurality of first corrugated regions and less than a vertical length of each of the plurality of first corrugated regions.

20. The magnetron cooling fin of claim 19 , wherein the predetermined interval is less than a transverse length of a second corrugated region and less than a vertical length of the second corrugated region.

Assignees

• Samsung Electronics Co Ltd
• Samsung Electrnoics Co Ltd

Inventors

• Park Dong Ho
• Kim Hak-Jae
• Kwon Myoung Keun
• Seo Eung Ryeol
• Yang Seung Chul

Classifications

• H01J23/005 Primary

  Cooling methods or arrangements (H01J23/033 takes precedence) · CPC title

• H01J25/50

  Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field (with travelling wave not moving completely around the electron space H01J25/42; functioning with plural reflection or with reversed cyclotron action H01J25/62, H01J25/64) · CPC title