Abstract: A ceiling fan has blades spaced apart circumferentially about and extending outward radially from a rotating component of a motor. The blades include upper blades and lower blades. Each lower blade is between and extends below a pair of adjacent upper blades. The motor, when activated, rotates the rotating component, concurrently rotating the upper blades and the lower blades in the same rotational direction. Each of the upper blades leading an adjacent one of the lower blades is configured to generate and direct an air current rearwardly and downwardly therefrom in front of the adjacent one of the lower blades and each of the lower blades trailing an adjacent one of the upper blades is configured to intercept the air current from the adjacent one of the upper blades and accelerate it rearwardly and downwardly therefrom, when the motor is activated.

Abstract: A ceiling fan having double-layer blades includes a motor unit, a blade frame unit, a first blade unit, and a second blade unit. The blade frame unit has a blade frame body. The first blade unit includes a plurality of first blades. The second blade unit includes a plurality of second blades. The first blades and the second blades surround the outside of the blade frame body, so that there is no need for the motor unit to provide a motor housing for connecting the first blades and the second blades, thereby saving costs and installation costs. With the arrangement of the first blades and the second blades, the ceiling fan can increase the current of air for cooling.

Abstract: A ceiling fan having double-layer blades includes a motor unit, a blade frame unit, a first blade unit, and a second blade unit. The blade frame unit has a blade frame body. The first blade unit includes a plurality of first blades. The second blade unit includes a plurality of second blades. The first blades and the second blades surround the outside of the blade frame body, so that there is no need for the motor unit to provide a motor housing for connecting the first blades and the second blades, thereby saving costs and installation costs. With the arrangement of the first blades and the second blades, the ceiling fan can increase the current of air for cooling.

Abstract: An installation structure of a ceiling fan and an upper illuminating lamp includes a first mounting unit that is disposed on one of a connecting portion of a ceiling fan body and a lamp unit and a second mounting unit that is disposed on the other one of the connecting portion and the lamp unit. The second mounting unit corresponds to the first mounting unit. The first mounting unit and the second mounting unit are connected to each other so that the lamp unit and the ceiling fan body are coupled together, so as to complete the assembly quickly.

Abstract: A ceiling fan having double-layer blades includes a motor unit, a blade frame unit, a first blade unit, and a second blade unit. The blade frame unit has a blade frame body. The first blade unit includes a plurality of first blades. The second blade unit includes a plurality of second blades. The first blades and the second blades surround the outside of the blade frame body, so that there is no need for the motor unit to provide a motor housing for connecting the first blades and the second blades, thereby saving costs and installation costs. With the arrangement of the first blades and the second blades, the ceiling fan can increase the current of air for cooling.