DE1924523A1 - High frequency cooker II - Google Patents

Description

High frequency hearth II addition to P 19 07 448.7 in the main application a high-frequency stove in the shape of a cube was operated in several coordinates was excited in the fundamental wave and possibly additional electrical 'rotary components The same tube was used as the incoming waveguide.

In the following, this arrangement is additionally replaced by a work area, which also preferably oscillates in its fundamental wave in two or three coordinates, but to save electrical and mechanical space on the second tube is dispensed with, as well as an interior stress by an antenna.

Rather, the work space is preferably made up of slotted outer walls not with resonance slots, but through slot fields, outside of resonance after P 14 91 9a5.8 excited. The leading waveguides or Lecher lines are flat and take up little space.

The fundamental waves are of the magnetic forms H11 or 1110 and the electrical E01 or E11 or their spatial modifications, In general, the 11-waves are preferred because the E-wave resonates with distortion is disturbed by the object, possibly by the neighboring E- \ Yelle.

On the other hand, there is the possibility for the first time, even without use a room resonance to heat the object sufficiently with a single pass.

The spatial shapes are essentially dependent of the most frequently used object shape: cube and forms derived from it such as Quarder, truncated pyramid, etc. , Cylinder, truncated cone, etc., as well as sphere, ellipsoid, Egg shape, etc., and other rooms whose walls are marked by straight lines or conic sections be generated.

Fig. 1 shows the arrangement for a cubic, Fig. 2 for a cylindrical H-elle, Fig. 3 the scheme of the sink coupling.

1 is the work space, 2 the electrical Jeldlinien or their projections aui the plane of the drawing, indicated in vertical polarization.

The radiation comes from 2 opposing slotted walls at 3 via the waveguide 4 as a supply line, 3 in Fig. 9 is the transmitter with the coupling line 6. At 6, the incoming waveguides divide into 2 opposite directions.

If both waveguide groups are excited in phase with the same amplitude, this results in a diagonal field. As is well known at 90 ° phase shift a turntable. With amplitude modulation of the two fields relative to one another or Phase angles / QO ° result in elliptical or angular oscillations Fields.

In the case of the E-waves, there are particularly simple arrangements that correspond to the pot circle shapes. The work tree is the inner conductor, the outer wall the incoming waveguide the outer wall of the pot.

However, the E-shape becomes common with strongly changing object shapes disturbed by the neighboring H-wave.

Instead of generating an electrical rotating field using 2 linear fields, one also occupy the entire circumference of the working area with slots and a leading one Lay the waveguide around in a belt shape so that the traveling field is in the supply line runs around, generate a corresponding rotating field through the slots in the work area.

Claims (1)

Expectations: High-frequency cooker according to main application P 19 07 448.7, characterized in that that 1. the energy is radiated into the work area through slotted walls, whereby the radiation sources lie opposite one another in pairs, 2. by superposition multiple irradiations, rotary or rotary oscillating fields are generated, 3. longitudinally A feeding traveling field runs around the slotted perimeter of the work area, 4. if there is sufficient object absorption, the room resonance is dispensed with at all. Blank page