Patent ID: 7385164

Claim:
A revolving base of a microwave oven, comprising: an upper chassis fixedly connecting with a bottom of a main body of the microwave oven, a nether chassis movably located under the upper chassis, an upper distribution box located on a bottom of the upper chassis, a nether distribution box located on a top side of the nether chassis, idler wheel groups cooperating between the upper chassis and the nether chassis to make both of them correspondingly rotate; the upper chassis, the upper distribution box, the nether distribution box and the nether chassis axially locate through a screw; a smaller conducting ring and a bigger conducting ring are embedded in the bottom of the upper distribution box, the smaller conducting ring and the bigger conducting ring center on the screw, the smaller conducting ring and the bigger conducting ring respectively have electrical union joints extending upwards through the upper distribution box; a smaller conducting strip and a bigger conducting strip are embedded in the top side of the nether distribution box; the smaller conducting strip and the bigger conducting strip respectively have resilient contacts extending upwards, which respectively contact with the smaller conducting ring and the bigger conducting ring; the smaller conducting strip and the bigger conducting strip also have electrical connections extending downwards through the nether distribution box.