Zipper switch for dc motor of ceiling fan
OwnerTeng-san TSENGinventor
Life of this patent
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Abstract
A zipper switch for the DC motor of a ceiling fan includes upper and lower cases matching with each other. The upper case is disposed with a driving disk, an elastic element, and a zipper that can rotates the driving disk in one direction. The driving disk is urged by the elastic element to rotate in the opposite direction. The driving disk has a pushing part for pushing a rotating block pivotally disposed in the lower case. The rotating block is disposed with a metal plate with a plurality of electrical contacts. Both sides of the lower case are disposed with a conductive chip, respectively. When the pushing part rotates the rotating block, each electrical contact has intermittent electrical contacts with the conductive chips to start the DC motor.
Claims8
A zipper switch for the DC motor of a ceiling fan, comprising:
- an upper case, wherein a driving disk is pivotally disposed therein, an elastic element is disposed between the driving disk and the upper case, a zipper is disposed on the driving disk for rotating the driving disk in one single direction, the driving disk is urged by the elastic element to rotate in the opposite direction, the driving disk is formed with a pushing part having a plurality of slant surfaces, one end of a rotating block is formed with a passive part corresponding to the slant surfaces so that the slant surfaces are engaged with the passive part and the rotating block is free to rotate in steps in one direction;
- a lower case matching with the upper case, wherein an accommodating space is formed in the lower case for accommodating pivotally the rotating block, and each side of the lower case in the vicinity of the rotating block is disposed with a conductive chip;
- wherein the rotating block is disposed with a metal plate that has four electrical contacts separated by same angle along the edge of the rotating block, and each electrical contact on the rotating block and the conductive chips in the lower case have intermittent electrical contacts.
Dependencies are inferred from the claim text.