Fan having speed indicator

• US 4,762,463 A
• Filed: 04/07/1987
• Issued: 08/09/1988
• Est. Priority Date: 04/07/1987
• Status: Expired due to Fees

• Current Assignee: Tai-Her Yang
• Original Assignee: Tai-Her Yang
• Inventors: Yang, Tai-Her
• Primary Examiner(s): Powell, Jr., Everette A.
• Application Number:
  US07/035,387
• Time in Patent Office: 490 Days
• Field of Search: 416/5, 416/61, 416/170 C, 416/, 340/671, 417/572
• US Class Current: 416/61
• CPC Class Codes: F04D 25/088 Ceiling fans
• CPC Class Codes: F04D 27/00 Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02P 25/04 Single phase motors, e.g. capacitor motors

Abstract

A multispeed ceiling fan having a plurality of blades, a speed-selecting switch and an a.c. split-phase induction motor. The motor has a rotor and at least one stator winding. The speed selecting switch is arranged to apply respectively different voltages or currents to the motor for each respective selected speed. At least one lamp is connected in parallel to either the main stator winding or in parallel to a phase-shifting capacitor in series with an auxiliary stator winding, as an indicator providing a visible indication of the selected speed for the motor. The at least one lamp may comprise a plurality of lamps, at least all but one being in series with a respective plurality of Zener diodes so that they become energized in sequence as the voltage across the respective lamps or across the lamps in series with the respective pluralities of diodes increases.

Claims

1. In a ceiling fan having a plurality of blades, speed-selecting switch means, a rotor and at least one stator winding, said speed-selecting switch means being operatively arranged to apply respectively different magnitudes of voltage across the at least one stator winding for each respective speed, an improvement comprising at least one lamp fixedly and conductively connected in parallel to at least a portion of said at least one stator winding, whereby the intensity of light from the at least one lamp is indicative of the selected speed as set by the speed-selecting switch means.

2. The ceiling fan according to claim 1, wherein said at least one lamp is a single lamp.

3. The ceiling fan according to claim 1, wherein said at least one lap is a single lamp connected in parallel to the at least one stator winding.

4. The ceiling fan according to claim 1, including nonrotating mounting means for supporting said at least one lamp so it is viewable from beneath the fan.

5. In a ceiling fan having a plurality of blades;

speed-selecting switch means;

a rotor;

a main stator winding;

an auxiliary stator winding; and

a phase-shifting capacitor connected in series with the auxiliary stator winding, said phase-shifting capacitor and said auxiliary winding being connected in series across said main stator winding, and said speed-selecting switch means being operatively arranged to place respectively different magnitudes of voltage across the phase-shifting capacitor for each respective speed, an improvement comprising at least one lamp fixedly and conductively connected in parallel to said phase-shifting capacitor, whereby the intensity of light from the at least one lamp is indicative of the selected speed as set by the speed-selecting switch means.

6. The ceiling fan according to claim 5, wherein said at least one lamp is a single lamp.

7. The ceiling fan according to claim 5, including nonrotating mounting means for supporting said at least one lamp so it is viewable from beneath the fan.

8. In a ceiling fan having a plurality of blades, speed-selecting switch means, a rotor and at least one stator winding, said speed-selecting switch means being operatively arranged to apply respectively different magnitudes of voltage across the at least one stator winding for each respective speed, an improvement comprising respective pluralities of Zener diodes, a plurality of lamps individual ones of which are fixedly respectively connected in parallel to at least a portion of said at least one stator winding via respective ones of said pluralities of Zener diodes, whereby the individual ones of the lamps become energized as the voltage across the at least one stator winding increases, the number of lamps energized at any given time being indicative of the selected speed.

9. The ceiling fan according to claim 8, wherein respective ones of said lamps and the respective pluralities of Zener diodes are fixedly connected in parallel to the stator winding.

10. The ceiling fan according to claim 8, including nonrotating mounting means for supporting said plurality of lamps so the lamps are viewable from beneath the fan.

11. In a ceiling fan having a plurality of blades;

speed-selecting switch means;

a rotor;

a main stator winding;

an auxiliary stator winding; and

a phase-shifting capacitor connected in series with the auxiliary stator winding, said phase-shifting capacitor and said auxiliary winding being connected in series across said main stator winding, and said speed-selecting switch means being operatively arranged to place respectively different magnitudes of voltage across the phase-shifting capacitor for each respective speed, an improvement comprising respective pluralities of Zener diodes, a plurality of lamps individual one of which are fixedly respectively connected in parallel to the phase-shifting capacitor via respective ones of said pluralities of Zener diodes, whereby the individual ones of the lamps become energized as the voltage across the phase-shifting capacitor increases, the number of lamps energized at any given time being indicative of selected speed.

12. The ceiling fan according to claim 11, wherein respective ones of said lamps and the respective ones of the pluralities of Zener diodes are fixedly connected in parallel to the phase-shifting capacitor.

13. The ceiling fan according to claim 11, including nonrotating mounting means for supporting said plurality of lamps so the lamps are viewable from beneath the fan.

14. In a ceiling fan having a plurality of blades, speed-selecting switch means, a rotor and at least one stator winding, said speed-selecting switch means being operatively arranged to apply respectively different magnitudes of voltage across the at least one stator winding for each respective speed, an improvement comprising respective pluralities of back-to-back connected diodes, a plurality of lamps individual ones of which are fixedly respectively connected in parallel to at least a portion of said at least one stator winding via respective ones of said pluralities of back-to-back connected diodes, whereby the individual ones of the lamps become energized as the voltage across the at least one stator winding increases, the number of lamps energized at any given time being indicative of the selected speed.

15. The ceiling fan according to claim 14, wherein respective ones of said lamps and the respective pluralities of back-to-back connected diodes are connected in parallel to the stator winding.

16. The ceiling fan according to claim 14, including nonrotating mounting means for supporting said plurality of lamps so that lamps are viewable from beneath the fan.

17. In a ceiling fan having a plurality of blades;

speed-selecting switch means;

a rotor;

a main stator winding;

an auxiliary stator winding; and

a phase-shifting capacitor connected in series with the auxiliary stator winding, said phase-shifting capacitor and said auxiliary winding being connected in series across said main stator winding, and said speed-selecting switch means being operatively arranged to place respectively different magnitudes of voltage across the phase-shifting capacitor for each respective speed, an improvement comprising respective pluralities of back-to-back connected diodes, a plurality of lamps individual ones of which are fixedly respectively connected in parallel to the phase-shifting capacitor via respective ones of said pluralities of back-to-back connected diodes, whereby the individual ones of the lamps become energized as the voltage across the phase-shifting capacitor increases, the number of lamps energized at any given time being indicative of selected speed.

18. The ceiling fan according to claim 17, wherein respective ones of said lamps and the respective ones of the pluralities of back-to-back connected diodes are fixedly connected in parallel to the phase-shifting capacitor.

19. The ceiling fan according to claim 17, including nonrotating mounting means for supporting said pluralities of lamps so that the lamps are viewable from beneath the fan.