Housing assembly for ceiling fan

A housing assembly for installing a fan to a wall panel, the wall panel having a top and bottom surface, the housing assembly comprising:

• a housing means for containing the appliance to be installed;
• a sidewall surrounding said housing means;
• a plurality of pass-through slots on the sidewall at predetermined positions;
• a plurality of fastener units positioned on the inside surface of the sidewall, each fastener unit comprising:
• a base means for attaching the fastener unit to the sidewall and for aligning the sidewall to the bottom surface of the wall panel;
• an activation means coupled to the base means;
• a clamping means coupled to the base means and the activation means, for being driven by the activation means to move from a retracted position, pass through the pass-through slot, to a deployed position to clamp the top surface of the wall panel.

A housing assembly for installing an appliance to a ceiling, said ceiling having a top surface and a bottom surface, the housing assembly comprising:

• a housing for containing the appliance, the housing having a sidewall, the sidewall having a plurality of pass-through slots at predetermined locations on the sidewall;
• a plurality of clamping units on the sidewall, comprising:
• a base means for attaching the clamping unit to the sidewall and for aligning the sidewall to the bottom surface of the ceiling;
• an activation means coupled to the base means;
• a first arm pivotally connected to the base means, the first arm disposed to rotate toward and away from the sidewall as pushed by the activation means;
• a curve-shaped second arm connected to the first arm, the second arm passing through the pass-through slot and gradually making contact with the top surface of the top surface of the ceiling, as the first arm rotates toward the sidewall.