Electric Bike Rotary Bar Speed Control Magnets

With the development of the electric bicycle car market, nowadays the use of electric bicycles is more and more, you may not know that the electric bicycle turnbuckle inside the neodymium-iron-boron magnets will also be used, usually we will call this kind of magnet electric bicycle turnbuckle magnets, speed magnets, today I take you to understand the principle of operation of this kind of magnets and the type of magnets.

The magnet principle of an e-bike turnbuckle (also known as a throttle grip) is based on Hall effect sensors to detect the angle of rotation and thus regulate the output power of the motor. In the internal structure of the electric car turnbuckle there will be a magnetic induction of the size of the magnetic line of force linear Hall element, Hall element of the three feet above will be connected to three lines. These three lines correspond to the positive pole negative pole, signal. Electric car turnstile internal magnet, of that we turn the electric car turnstile, the internal structure of the magnet will also be rotated, when the Hall element magnetic induction has magnetic signal can give the control module to send out the transmission signal, through this way to adjust the speed of the motor.

N38 16mm radius 180° curved neodymium magnets

E-bike turnbuckle magnet type;

E-bike turnbuckle magnets commonly have two types, one is a separate long arc, the magnetic induction strength of the magnet surface, in different parts, the size will be different, the Hall element of the magnetic induction surface, away from the magnet is slightly spaced, when the specific location of the magnet changes, the magnetic induction strength exerted on the Hall element will follow the change, the Hall element output voltage size will be changed.

Another is in a small circle on both sides of a section of the arc, each installed a small magnet, so that the Hall components in the two small magnets between the two small magnets, two small magnets between the different parts of the magnetic induction intensity will be different, the electric car turn the handle rotation, applied to the Hall components of the magnetic induction intensity is the same change, the principle of equivalent to the above an arc magnet, but because of the two small magnets between the magnetic induction intensity by the Installation position material deformation and many other factors, the overall linearity, are not as good as a separate arc magnet.

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The above is the whole content of the article, edited by permanent magnet manufacturer Courage Magnets, if you need DC motor magnets, Hall sensor magnets, encoder magnets can contact us, we are very experienced.

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