Forced-convection asymmetrical radiator

Abstract

The invention discloses a dissymmetrical radiator under compelling convection. It uses the feature that the temperature field is dissymmetrical while compelling convection. Cutting off a certain wideness of the main fan in existence at the wind entrance, and keep the original size at the wind exit. Thus, the magnetron anode is in the dissymmetrical location relative to the main fan. It is easy to produce and need not to change the product line and process. The invention can not only used for magnetron heat emission, but also used as the other radiator under compelling convection.

Description

Technical field: [0001] The invention belongs to the fields of electronic technology and heat dissipation technology, and in particular relates to the technology that a magnetron utilizes heat dissipation fins to enhance heat dissipation. Background technique: [0002] Magnetron is a high-power microwave source with the highest efficiency. It is characterized by high output power, high efficiency, small size, light weight and low cost. Therefore, it has been widely used not only in the military field, but also in the civilian field. has been well applied. With the development of radar, aerospace, electronic countermeasures, microwave heating and other technologies, higher requirements are put forward for magnetrons. When the magnetron is working, its anode temperature mainly comes from three aspects: the radiation from the hot cathode surface, the bombardment of electrons on the anode blades, and the eddy current generated by the high-frequency current flowing along the ano...

AI Technical Summary

Problems solved by technology

figure 2 The symmetrical heat sink shown in includes: 1 main fin, 2 fixed rings, 3 to 10 are auxiliary fins, from figure 2 It can be seen that the structure of this existing heat sink is symmetrical, that is, the anode of the magnetron is located at the center of the main fin of the heat sink; image 3 shown), image 3 The extended heat sink shown in includes: 1 main wing, 2 fixed rings, 3 to 10 are auxiliary wings, and 11 is tail fin; the anode of the magnetron is still located in the center of the main wing of the heat sink, but a tail is added to the air outlet fins to increase heat dissipation; although this type of heat sink improves heat dissipation efficiency, it increases the amount of material used and increases the cost of the product

None of them do the best heat dissipation with less material

Images