Electric Outboard Motor

With the maturity of brushless DC motor technology and the advancement of battery technology, electric outboard motors have also entered the range of people's choices.

How Folding Works

The electric outboard motor uses a recyclable battery as an energy source and converts electric power into kinetic energy through an electric motor.

Folding structure

According to the different position of the motor, it can be divided into the motor-mounted type and the motor-mounted type.

1. The motor is mounted underneath. As the name implies, the motor is placed under the outboard motor, and the output shaft of the motor directly drives the propeller shaft to rotate. The commonly used motor is a DC brushless motor with high energy conversion rate; the converted kinetic energy is directly transmitted to the propeller, and the energy loss is minimized; the intermediate connection body does not involve power transmission, and the shape design is completely considered from the perspective of fluid mechanics to minimize water resistance Coefficient, so this structure has the highest energy utilization rate. The motor rotor and shaft system are the only rotating parts. The entire outboard motor has a simple structure, low failure rate and high reliability. However, due to the lower space limitation, the size of the motor cannot be too large, so this structure is usually applied to electric outboard motors with smaller horsepower. For example, all of Torqeedo's outboard motors below 8 horsepower use this structure.

2. The motor is mounted on the top, and the motor is placed on the top of the outboard motor. The kinetic energy output of the motor is transmitted to the propeller through the transmission shaft in the gear box. The structure and design of the gearbox are not fundamentally different from traditional fuel outboard engines. The advantage of this design is that the upper motor is less restricted by space, and the volume can be relatively large, which is suitable for outboard motors with larger horsepower. Torqeedo’s 20, 40, and 80 horsepower outboard engines are designed using this design. In addition, according to the location of the battery, it is divided into built-in and external. Generally, smaller horsepower requires less battery capacity, and can be made into battery built-in type, which is more convenient for users to use; larger horsepower requires greater battery capacity, which is usually required External battery.