1. Material: At present, there are new frame materials such as high-carbon steel, aluminum alloy, carbon fiber/magnesium alloy, etc. for electric wheelchairs.
The high-carbon steel frame is a widely popular and cost-effective frame material. It is basically configured on outdoor electric wheelchairs. It has large front and rear wheels and good passability. It can be equipped with toilets, trailers, rear controls, and full reclining. And other rich configuration. The disadvantage is that it is heavy and the folding is relatively complicated. The advantage is affordable.
Aluminum alloy material is the mainstream. The advantage is that it is lighter, easy to fold, and can be put in the trunk of the car alone by one person. It does not take up any space. With the increase in sales, functions such as toilets, trailers, electric full reclining, and electric folding have become available. It has been developed. The advantage of this car is 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.
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, but the price of the car of this material is very high.
2. Motor: There are currently several types of electric wheelchair and 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. Replace the carbon brushes in 2-3 years. The carbon brushes can be replaced in the motor repair shop. It is relatively convenient in China. The brushed motors will become noisy and consume more power over a long period of time. Brushless motors are very advantageous in terms of power consumption and noise. There are no carbon brushes inside the motor. It does not take long to replace the carbonic acid. The disadvantage is that the cost is high. A brushless motor is more than twice the cost of a brushed motor and requires special Matching 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.
3. Controller: The controller is the brain of the wheelchair. Several domestic controller manufacturers are relatively mature, and some use British PG controllers. British PG controllers are not popular because they have no after-sales service in China and are expensive. The function and quality of the domestic controller can be reached, and the price is only one-third of the PG, and it can also provide good after-sales. Therefore, in addition to the use of PG controllers for import and export, PG controllers are rarely used in domestic sales.
4. Battery: The battery provides energy for the wheelchair. It is mainly divided into lithium battery and lead-acid battery. The cruising range is determined by the capacity of the battery. Because of its size, the lead-acid battery has only two capacities of 12AH and 20AH with 24V voltage.
Lithium batteries are more complicated, because they are all made of 18650 small battery packs, so the battery capacity is determined by the manufacturer. Lithium battery capacity from 6.6AH to 12AH, 24AH, 36AH is now getting bigger and bigger, the longer the cruising range that can be provided, the important thing about lithium battery is battery cell.
5. Electromagnetic brake: Strictly speaking, the electromagnetic brake is a standard part of an electric wheelchair, but at present, many cheap electric wheelchairs have removed the electromagnetic brake and replaced it with an electronic brake. The cost is reduced, but the standing performance and maneuverability are Poor.
