Electricity: motive power systems – Supplied or controlled by space-transmitted electromagnetic...
Reexamination Certificate
1999-09-08
2001-04-03
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Supplied or controlled by space-transmitted electromagnetic...
C318S257000, C318S280000
Reexamination Certificate
active
06211632
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the field of ceiling fan, more particularly, to a direction control device for a ceiling fan.
2. Description of Related Art
The ceiling fan has been widely used to provide cooling function as well as decorative effect. Because the ceiling fan is secured to ceiling and suspended therefrom, it may have remote control capability so that a user can conveniently control the operation of the ceiling fan. Such a remote control operation is accomplished by using a remote controller to transmit wireless signal to the ceiling, which is received by the receiver of the ceiling to control the operation states thereof.
FIG. 3
shows a ceiling fan which has a canopy (
83
), a motor (
80
), a hanger rod (
82
) suspended from the canopy (
83
) and extended through the motor (
80
), a plurality of blades (
81
) connected to the motor (
80
) and a switch box (
84
) secured to the bottom of the hanger rod (
82
). The switch box (
84
) has a pull chain (
85
) to be used to manually control the operation of the ceiling fan.
In case that such a ceiling fan is provided with remote control and rotation direction control capabilities, a remote receiver and a direction control device are both installed in the canopy (
83
). Although the space inside the canopy (
83
) is large enough to accommodate the receiver and the direction device, the process to install is difficult. As the direction control to the motor (
80
) is accomplished by switching the power connection lines thereof, the connection lines of the motor (
80
) have to be connected to the switch box (
84
) such that the operation of the motor (
80
) can be controlled by the pull chain (
85
), and then redirected to the switch box (
84
) via the hanger rod (
82
). The hanger rod (
82
) is hollow to receive electrical wires or the like. However, the inner diameter of the hanger rod (
82
) is usually so small such that the connection wires of the motor (
80
) are difficult to extended therethrough. Particularly, the connection wires have to be manually extended through the hanger rod (
82
), which results in difficulty in assembly of a ceiling fan. Therefore, there is a need for the above ceiling fan control device to be improved.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a direction control device which can be easily installed into a ceiling fan.
To achieve the object, a direction control device is provided to have a remote receiver arranged inside a canopy of the ceiling fan and a direction control circuit unit arranged in a switch box of the ceiling fan. The conducting wires of the remote receiver and the connection lines of the fan motor are both electrically connected to the direction control circuit unit via a hanger rod of the ceiling fan without being redirected and the rotation direction of the ceiling fan can be remotely controlled.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 5340277 (1994-08-01), Whitaker
patent: 5738496 (1998-04-01), Mehta
patent: 6015274 (2000-01-01), Bias et al.
Pelton, Esq. William E.
Rhine Electronic Co. Ltd.
Ro Bentsu
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