The electromagnetic oven heat radiation structure
Technical field
The utility model relates to a kind of electromagnetic oven heat radiation structure.
Background technology
Electromagnetic oven is to utilize the electromagnetism drum to carry out the principle that electromagnetic induction produces eddy current pan is heated, in the course of the work since the heating of electromagnetism drum and pan by ceramic panel to electromagnetic oven internal radiation heat, make the electromagnetic oven temperature inside than higher.The radiating mode of existing electromagnetic oven all is that the parallel installation with lower cover of fan is come electromagnetic oven heat radiation.Because radiator fan is an aerofoil fan, the characteristic of its air inlet through hollow shaft and axially air-out is directly towards loam cake or panel, and efficient is low and can produce bigger noise, and radiating effect is bad.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of efficient height, electromagnetic oven heat radiation structure that noise is little are provided, and the rotation speed of the fan of electromagnetic oven reduced, thereby reduce fan noise.
A kind of electromagnetic oven heat radiation structure comprises lower cover, is installed on down the electromagnetism drum, IGBT fin, the fan that cover, and the projection line of central axis on the lower cover supporting plane that it is characterized in that described fan outlet air surface is towards electromagnetism drum and/or IGBT fin.
Adopt this radiator structure, the installation of fan is become to tilt to place by being parallel to the plane that the lower cover feet forms, make distinguished and admirable electromagnetism drum and these heater elements of IGBT fin of directly blowing to better of fan, reach great heat radiation effect.Conversely, thereby satisfying the rotating speed that can reduce fan under the identical heat radiation index, promptly energy-conservation noise fan work can be reduced again the time.Checking is being satisfied under the same radiating condition by experiment, adopts the utility model electromagnetic oven fan radiator structure, and rotation speed of the fan can reduce by 200~500 and change.
Description of drawings
Be described further below in conjunction with accompanying drawing:
Fig. 1 is the stereogram of an embodiment of the utility model electromagnetic oven fan radiator structure;
Fig. 2 is the profile of Fig. 1 embodiment;
Wherein: 1, fan; 2, lower cover; 3, IGBT fin; 4, electromagnetism drum; 5, central axis; 6, projection line
The specific embodiment
Utility model electromagnetic oven fan radiator structure embodiment as shown in Figure 1 and Figure 2, comprise electromagnetism drum 4, fin 3, lower cover 2 and be installed in fan 1 on the lower cover 2, the projection line 6 of the central axis 5 of fan outlet air surface on lower cover 2 supporting planes is towards electromagnetism drum 4, IGBT fin locality.
In the course of work,, thereby satisfying the rotating speed that can reduce fan 1 under the identical heat dissipation environment, promptly energy-conservation noise can reduce fan 1 work again the time because the distinguished and admirable more direct of fan blow to heater elements such as electromagnetism drum 4 and fin 3.
Certainly, except the projection line of fan central axis in the present embodiment towards electromagnetism drum and IGBT fin, can also can both reach raising radiating effect of the present utility model separately towards electromagnetism drum or IGBT fin, reduce noise.