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What Is An Electric Wheelchair?
- Sep 17, 2018 -

Electric wheelchair, also called powered wheelchair, motorized wheelchair, electric-powered wheechair, or powerchair,an wheelchair that is propelled by an electrically based power source, typically motors and batteries. The first motor-powered wheelchairs appeared in the early 1900s; however, George Klein and his teams extend

Power Wheelchairs

it to assist injured veterans after World War II.

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The first commercially produced electric wheelchairs were merely heavy-duty manual folding-frame wheelchairs that were Standard

Electric Powered Wheelc hairs

powered by lead-acid batteries, motors, drive belts, and pulleys. Those systems, known as conventional power wheelchairs, were very simplistic. They required the use of a joystick to control the wheelchair’s movement, and programmability did not exist. The seating system typically consisted of a sling seat and back upholstery, which significantly limited postural support for the individual.


Standard Electric Powered WheelchairsThe advent of the power base, which sits beneath the seat and contains the motor and batteries, allowed for significant mechanical advancements in electric wheelchairs. The power base separated the electric wheelchair into two components: the base, which provided the mobility, and the seating system, which provided the postural support. At the same time that a shift from a conventional power wheelchair to a power-base wheelchair was taking place, significant advancements were occurring in electronic systems. Some of those mechanical and electrical advancements included the ability to add power tilt and recline systems and programmable performance settings (e.g., forward speed, turning speed, and acceleration). Joysticks, the most basic and common devices used to control electric wheelchairs, came to resemble those used with computer game consoles. 


Two types of drive mechanisms are used on electric wheelchairs: indirect drive and direct drive systems. Indirect drive systems (pulleys and drive belts) are used on conventional electric wheelchairs, whereas direct drive systems (gear boxes) are used on power-base wheelchairs. The vast majority of contemporary electric wheelchairs use a power base with a direct drive system. Typically, two 12-volt batteries in series (24-volts total) are needed to power an electric wheelchair. li-ion batteries are well used in electric wheelchairs. Electric wheelchair batteries typically are rechargeable.


Electric wheelchairs also can be classified on the basis of the location of the drive wheels. There are three types of electric wheelchairs: front-wheel drive, mid- or centre-wheel drive, and rear-wheel drive. Traditionally, rear-wheel drive electric wheelchairs were preferred because of their similarity to manual wheelchairs in design and maneuverability. However, centre-wheel drive wheelchairs have gained popularity because they provide increased maneuverability.

Popular products:Portable Powered Wheelchairs      Outdoor Motorized Wheelchairs      Reclining Power Wheelchairs


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