Save costs or improve efficiency? This article will take you through the mystery of electric wheelchair motor technology

When you are shopping for an electric wheelchair, you are likely to come across the terms "brush motor" and "brushless motor". They represent different kinds of drive technology, but how exactly will this technological difference affect the performance of the power wheelchair you end up buying? Through this professional and in-depth review, we will demystify electric wheelchair motor technology and tell you what you should pay attention to when purchasing.

Brush motors: The spirit of the old days?

Brushed motors are the earliest form of DC motors. They use permanent magnets on the rotor and brushes (made of carbon) mounted on the fixed motor body to connect the coils so that when the rotor rotates, they will naturally come into contact with the coils. different coils, thus producing rotational motion.

In electric wheelchairs, brushed motors have these advantages and disadvantages:

advantage:

• Brushed motors are relatively inexpensive because manufacturing costs are lower.
• They are very good for starting torque and provide a lot of torque when starting.
  
  

shortcoming:

• Carbon brushes will wear out over time and need to be replaced regularly, which will increase the maintenance cost of the wheelchair.
• Motors with wheel brushes tend to be noisier.
• They are less efficient than brushless versions.
  
  

Brushless motors: an emerging force?

Brushless motors are an evolution that eliminates brushes from the power system. Magnetic field induction occurs on the rotor without physical contact, making this motor more efficient.

In terms of electric wheelchair technology, brushless motors have these characteristics:

advantage:

• Brushless motors are more efficient than brushed versions because they don't have the problem of carbon brush wear.
• They are quieter and provide a smoother driving experience.
• Brushless motors require no regular maintenance because there are no brushes to replace. This also makes the wheelchair less expensive to use.
• Since brushless motors don't generate heat, they last longer than brushed versions.

shortcoming:

• Brushless motors are more expensive to manufacture and require more complex controllers.
• In terms of starting torque, the brushless motor is weaker than the brushed version.

Motor performance comparison

The performance comparison between brushed and brushless motors is significant. Brushless motors are generally more efficient, which translates into longer battery life and lower energy costs. Although brushless motors are more expensive to manufacture, they last longer than brushed versions, saving money on maintenance over the long term. In addition, the quiet performance and smooth driving experience of brushless motors are also factors worth considering.

However, for applications that require greater starting torque, brushed motors are still a solid choice, as they perform better than brushless versions in this regard. When shopping for a power wheelchair, you need to evaluate how you will use the wheelchair and determine which motor is more important to you.

maintenance requirements

Maintenance of brushed motors is relatively simple and only requires replacement of the brushes. Brushless motors require little maintenance, but if they malfunction, the entire motor may need to be replaced. Therefore, parts availability and maintenance costs should be considered when purchasing.

cost considerations

Brushed motors are relatively cheaper, but brushless motors bring lower operating costs. When it comes to cost, it’s not just the initial purchase fee that you need to consider, but also the subsequent maintenance costs.

Help for buyers

A thorough understanding of power wheelchair drive technology can help you make an informed choice. If your application requires high cranking torque, or is less audible during use, a brushed motor may be more suitable. However, if you value long distances and low energy costs, a brushless motor may be a better choice.

Finally, keep in mind that different power wheelchair products and brands may differ in the motor technology they use. Therefore, when you purchase a power wheelchair, discuss and ask the salesperson for more information about the motor technology so you can determine which motor technology best meets your needs.

When you're looking for a new power wheelchair, understanding the differences between brushed and brushless motors can allow you to be more actively involved in your choice. Having adequate knowledge on this subject will not only help you find products at reasonable prices, but also better meet your actual needs. Remember, everyone’s situation is different, and practical application is the most important reference standard.