Material: The electric wheelchair uses high-carbon steel, aluminum alloy, carbon fiber/magnesium alloy and other new frame materials. High-carbon steel frame is a widely popular and cost-effective frame material, which is basically configured on outdoor electric wheelchairs. The front and rear wheels are large and the passability is good. It can be equipped with a variety of configurations such as toilets, trailers, rear controls, and full sleepers. A complete vehicle often weighs tens to hundreds of kilograms and is relatively complicated to fold. It is difficult for one person to put it in the trunk of a car, and it takes up space.
Aluminum alloy material is the mainstream. The advantage is that it is lighter in weight, easy to fold, and can be put in the trunk of the car alone by one person. It does not take up space. With the increase in sales, functions such as toilets, trailers, electric full reclining, and electric folding have become available. After being developed, this kind of car has the advantage that it can be consigned on the plane. It can be configured with a 6.6A lithium battery that meets airline standards and can be consigned. Many elderly people with travel plans will buy this model. The disadvantage is that it is still not light enough, with a weight of more than 50 kilograms, it is more difficult to move up and down, and the price is higher than the carbon steel frame is more expensive. But it is also within the acceptable range.
Carbon fiber/magnesium alloy is a new application material, which aims to further reduce the weight of the frame, thereby making it lighter and more portable. The current limit weight is about 30 catties with batteries. The elderly 60-70 can still handle it, but this material The price of the car is very high, with prices ranging from 6000-25000 yuan. This frame is suitable for indoor use or to be carried when going out.
Motor: There are currently several types of electric wheelchair motors, including brush motors, brushless motors, and worm gear motors. Brush motors have low cost and good durability. They are not used frequently in ordinary households, and can be used 2-3 The carbon brushes can be replaced every year. The carbon brushes can be replaced in the motor repair shop. It is relatively convenient in China. Brushed motors will become noisy and consume more power after a long period of use. Brushless motors are very advantageous in terms of power consumption and noise. There are no carbon brushes inside the motor, so you don’t need to replace the carbonic acid for a long time. The disadvantage is that the cost is high. A brushless motor is more than double the cost of a brushed motor. It is specially matched with a dedicated controller, so the wheelchair with brushless motor has longer battery life and lighter sound, but the price is higher. Worm gear motors are exported more for foreign trade, have advantages in terms of service life and maintenance, and are relatively expensive. They are used more in export-oriented and imported wheelchairs from Taiwan.
Controller: The controller is the brain of the wheelchair. Several domestic controller manufacturers are relatively mature. The control accuracy and quality control of Maikong, Aomag, Wuyang, etc. are relatively in place, and there are also British PG controllers that use British PGs. The controller is not popular because there is no after-sale service in China and the price is extremely high.
