Modular magnetron
View Patent ↗A modular magnetron for use in UV curing lamp assembly is disclosed. The modular magnetron includes a vacuum tube having a vacuum tube body, a top assembly, and a bottom assembly. The top assembly is configured to substantially overlay the vacuum tube. The bottom assembly is configured to substantially extend about the vacuum tube, the vacuum tube being positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly configured to employ a flexible clamp-type fitting about the vacuum tube body for substantially maintaining thermal and electrical conductivity. The top assembly is configured to be releasably fastened to the bottom assembly about the vacuum tube with removable fasteners.
1. A modular magnetron, comprising:
a vacuum tube having a vacuum tube body;
a top assembly configured to substantially overlay the vacuum tube; and
a bottom assembly configured to substantially extend about the vacuum tube, the vacuum tube positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly configured to employ a flexible clamp-type fitting about the vacuum tube body for substantially maintaining thermal and electrical conductivity, the cooling assembly comprising a heat sink, wherein a facing side of the heat sink is split and fastenable to produce a snug clamp-on fit of the cooling assembly to the vacuum tube body and to permit repeated vacuum tube removal,
wherein the top assembly is configured to be releasably fastened to the bottom assembly about the vacuum tube with removable fasteners.
2. The modular magnetron of claim 1 , wherein the cooling assembly is liquid cooled.
3. The modular magnetron of claim 1 , wherein the heat sink is a copper block heat sink.
4. The modular magnetron of claim 1 , wherein the heat sink has a cylindrical interior aperture bored to match the outer diameter of the vacuum tube body.
5. The modular magnetron of claim 1 , wherein the heat sink is threaded with holes for water connections.
6. The modular magnetron of claim 1 , wherein the cooling assembly includes a plurality of thin plates.
7. The modular magnetron of claim 1 , wherein the top assembly further comprises one or more top magnets and the bottom assembly further comprises one or more bottom magnets, the one or more top magnets and the one or more bottom magnets each configured to substantially fit about the vacuum tube, the one or more bottom magnets configured to underlay the cooling assembly.
8. The modular magnetron of claim 7 , wherein at least one of the one or more top magnets or the one or more bottom magnets is made of one of a rare-earth material or Alnico.
9. The modular magnetron of claim 7 , wherein at least one of the one or more top magnets or the one or more bottom magnets is an electromagnet.
10. The modular magnetron of claim 7 , wherein the top assembly further comprises a top yoke configured to overlay the at least one top magnet and the vacuum tube and a connection box overlying the top yoke, and the bottom assembly further comprises a bottom yoke configured to underlay the at least one bottom magnet and to receive therethrough the vacuum tube.
11. The modular magnetron of claim 1 , wherein the top assembly and the bottom assembly are aligned with each other with opposing alignment slots extending outward from the top yoke and the bottom yoke, respectively, using removable fasteners.
12. The modular magnetron of claim 10 , wherein the vacuum tube further comprises a top portion with electrical connections extending therefrom, the electrical connections each having one of a push-on type connector or a screw-terminal connection that is accessible through the connection box.
13. The modular magnetron of claim 12 , wherein the vacuum tube is configured to be keyed within the bottom assembly so that the electrical connections of the vacuum tube mate with the connection box.
14. The modular magnetron of claim 10 , wherein the connection box includes filter elements to reduce electro-magnetic interference.
15. The modular magnetron of claim 1 , wherein the bottom assembly is configured to be fastened to a waveguide, the waveguide having an opening for receiving an antenna dome of the vacuum tube, the antenna dome configured to emit microwave radiation.
16. A method for manufacturing a modular magnetron, comprising:
providing a vacuum tube having a vacuum tube body, a top assembly configured to substantially overlay the vacuum tube, and a bottom assembly configured to substantially extend about the vacuum tube, the vacuum tube being positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly comprising a flexible clamp-type fitting and a heat sink, wherein a facing side of the heat sink is split and fastenable to produce a snug clamp-on fit of the cooling assembly to the vacuum tube body and to permit repeated vacuum tube removal;
fitting the flexible clamp-type fitting about the vacuum tube body;
receiving the vacuum tube in the bottom assembly and the top assembly; and
fastening the top assembly to the bottom assembly about the vacuum tube with releasably removable fasteners.
17. The method of claim 16 , further comprising the step of liquid cooling the cooling assembly.
18. The method of claim 16 , wherein the top assembly further comprises one or more top magnets and the bottom assembly further comprises one or more bottom magnets, and further comprising fitting the one or more top magnets and the one or more bottom magnets substantially about the vacuum tube.
19. The method of claim 18 , wherein one or more top magnets or the one or more bottom magnets is an electromagnet.
20. The method of claim 16 , further comprising the top assembly and the bottom assembly with each other with opposing alignment slots extending outward from the top yoke and the bottom yoke, respectively, using removable fasteners.