Multi-magnetic block position-adjustable turntable sensing element
A technology of sensing element and turntable type, which is applied in the direction of transmitting sensing components, vehicle components, and rider drive by using electric/magnetic devices, which can solve the problems of unstable operation of the motor, lack of assistance, and inequalities, and achieve The effect of low cost and simple structure
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Embodiment 1
[0061] Embodiment 1. Rotary disk sensor element with adjustable multi-magnet positions
[0062] Such as figure 1 , with the concave surfaces of an annular groove rotating disc 1 and an annular groove fixing disc 20 facing each other, the size of the annular groove rotating disc 1 and the annular groove fixing disc 20 just makes the annular groove fixing disc 20 fit in In the annular groove of the annular groove rotating disk 1, two disks are synthesized into a fitting inner hollow shell that can rotate relatively, and the concave surfaces of the two disks are sandwiched into a hollow ring 21; the annular groove rotating disk at the position of the hollow ring 21 1 is fixedly provided with 20 permanent magnet blocks 2. The annular groove rotating disk 1 and the annular groove fixed disk 20 are injection molded with high-strength plastics.
[0063] The diameter of the annular groove rotating disk 1 in the hollow ring 21 is 10.0 cm, and 20 permanent magnet blocks 2 are arranged...
Embodiment 2
[0072] Embodiment 2. High-density multi-magnet position-adjustable turntable sensor element
[0073]Such as figure 2 1. A high-strength aluminum rotating disk 1 with a diameter of 10.0 cm is provided with 40 permanent magnet blocks 2 with a diameter of 0.6 cm. The magnetic flux of the permanent magnet block 2 is 146---279 (B·H)max / KJ·m -3 A certain value, Hall 3 keeps a distance of 0.2 cm from each permanent magnet block 2 in the rotating state, so that when each rotating permanent magnet block 2 passes through Hall 3, Hall 3 can generate a corresponding Square wave electrical signal output. The circle where the arc of the arc bar hole 8 is located and the inner circular trajectory line 5-1 are concentric circles. The structures of other rotating disk 1, permanent magnet block 2, and Hall 3 are the same as those in embodiment 1.
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