Electric wheelchair overview
The electric wheelchair is based on the traditional manual wheelchair, superimposed with high-performance power drive device, intelligent control device, battery and other components, transformed and upgraded with artificially operated intelligent controller, which can drive the wheelchair to complete forward, backward, turning, standing It is a new generation of intelligent wheelchair with multiple functions such as , lying flat, etc. It is a high-tech product combining modern precision machinery, intelligent numerical control, engineering mechanics and other fields.
An overview of the development of electric wheelchairs
1. The electric wheelchair was invented around the beginning of the 20th century.
2. The United States issued the first patent certificate for electric wheelchairs in 1940.
3. Reasons why the initial products were not paid much attention: the poor healing status of severely disabled people, the early products were bulky, lacked efficiency, and low reliability.
4. After World War II, a large number of surviving disabled people surged, and the market demand suddenly increased.
5. In the 1960s and 1970s, the stability of the controller was gradually improved, and some special control interfaces were successfully developed.
6. In the 1980s, due to the microprocessor and its application in the manufacture of controllers, the controllability and stability were greatly improved.
7. In the 1990s, the development of electric wheelchairs was mainly in the improvement of structural design, including:
1) Various skeletons specially designed for electric wheelchairs
2) The design of the separation of the seat system and the transmission base
3) Drive wheel design in different positions
Classification of electric wheelchairs
There are many classification methods for electric wheelchairs. According to different places of use, electric wheelchairs can be divided into three categories: indoor electric wheelchairs, outdoor electric wheelchairs, and road electric wheelchairs. Indoor electric wheelchairs are suitable for short-distance use indoors and on flat walking paths near buildings; outdoor electric wheelchairs are suitable for outdoor medium-distance travel; road electric wheelchairs must have the required horn, steering, lighting, braking, etc. Various signaling devices, usually suitable for long-distance driving on ordinary roads. According to the size, it can be divided into large electric wheelchair and small electric wheelchair; by motor type, it can be divided into brush motor electric wheelchair and brushless motor electric wheelchair; by battery type, it can be divided into lead-acid battery electric wheelchair and lithium battery electric wheelchair; driven by controller The principle can be divided into front drive electric wheelchair and rear drive electric wheelchair.
Post time: Apr-11-2023