A construction elevator 22 comprising a car controller 36 configured to direct the construction elevator to operate in a lifting operation or a descending operation. The elevator may further include a variable frequency drive 38 coupled to a motor 40 that are configured to operate the construction elevator in the lifting operation or the descending operation responsive to the direction of the car controller. The elevator includes an onboard power source 24 configured to provide power to the variable frequency drive and the motor to complete the lifting operation without needing to be recharged by an external power supply. The on-board power source may be a capacitor or ultracapacitor. The on board power source may receive power from a charging interface, or may recharge as the elevator descends.
Ultracapacitor powered construction elevator
2023-11-08
Patent
Elektronische Ressource
Englisch
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