US 11,309,779 B2 · Brush-less DC dynamo and a vehicle comprising the same

a circular armature unit, comprising:

L slots of first armature conductors spaced with each other in sequence, and 1th slot of the first armature conductors is adjacent to Lth slot of the first armature conductors and spatially joined with each other, L is a natural number;

and

L slots of second armature conductors spaced with each other in sequence, adjacent to the L slots of the first armature conductors, and 1th slot of the second armature conductors is adjacent to Lth slot of the second armature conductors and spatially joined with each other, L is a natural number;

a magnetic unit, disposed inside the circular armature unit, comprising N pairs of magnetic poles, wherein the circular armature unit and the magnetic unit rotate relatively to each other under control, N is a natural number, and each of the magnetic poles faces S slots of the circular armature unit, S is a natural number and S≥2, and each pair of the magnetic poles faces M′ slots of the circular armature unit, M′ is a natural number and M′=2S, L=M′*N;

a pair of external electrodes comprising a first external electrode with a first polarity and a second external electrode with a second polarity, wherein the first polarity and the second polarity are opposite to each other, and the pair of external electrodes is a rechargeable battery or a power supplying module, and the first external electrode is interconnected to the rechargeable battery or the power supplying module in sequence by a inductor;

a first common potential electrode directly or indirectly electrically connected to the first external electrode with a first polarity;

a second common potential electrode;

a third common potential electrode electrically connected to the second common potential electrode;

a fourth common potential electrode directly or indirectly electrically connected to the second external electrode with a second polarity;

a control unit comprising M1′ first control switches, M1′ second control switches, M2′ third control switches and M2′ fourth control switches, wherein M1′=2S1, M2′=2S2, M1′+M2′≤M′, and S1≥1, S2≥1, S1+S2≤S, and M1′, M2′, S1 and S2 are all natural numbers;

and

a logic unit electrically connected to the control unit, wherein logic signals for controlling short or open of the first control switches, the second control switches, the third control switches and the fourth control switches are outputted by the logic unit by sensing the positions of the magnetic unit;

wherein, the first armature conductors and the second armature conductors are classified as M′ steps of armature coils interconnecting in sequence, and Pth step of the armature coils is formed by P1 slot of the first armature conductors satisfying with 1≤Q≤N and P2 slot of the second armature conductors satisfying 1≤Q≤N interconnecting in sequence, wherein P1=1+remainder of {[P−1+(M′*(Q−1))]/L}, P2=1+remainder of {[P−1+(M′*(Q−1))+S]/L}, P, Q, P1, P2 are all natural numbers, and M′≥4, 1≤P≤M′, 1≤Q≤N, 1≤P1≤L, 1≤P2≤L, and the armature coils are classified as S classes, and the S classes of the armature coils are further divided into a first group and a second group, wherein the first group includes S1 classes of the armatures coils and the second group includes S2 classes of the armature coils;

wherein, the S1 classes of the armature coils in the first class are independently connected to the first control switch electrically connected to the first common potential electrode and the second control switch electrically connected to the second common potential electrode, wherein t1th class of the armature coils is formed by t1 step of the armature coils and t1+Sth step of the armature coils reversely connected in sequence or in parallel, t1 is a natural number and 1≤t1≤S, and wherein, a [2(t1)−1]th node and a [2(t1)]th node are on two terminals of the t1th class of the armature coils, and a [2(t1)]th first control switch is interconnected between the first common potential electrode and the [2(t1)−1]th node, and a [2(t1)−1]th second control switch is interconnected between the second common potential electrode and the [2(t1)−1]th node, and there are at most half of the first control switches short and at most half of the second control switches short at the same operation time, and the [2(t1)−1]th first control switch and the [2(t1)−1]th second control switch are not short at the same time, and the [2(t1)]th first control switch and the [2(t1)]th second control switch are not short at the same time;

wherein, the S2 classes of the armature coils in the second class are independently connected to the third control switch electrically connected to the third common potential electrode and the fourth control switch electrically connected to the fourth common potential electrode, wherein t2th class of the armature coils is formed by t2 step of the armature coils and (t2+S)th step of the armature coils reversely connected in sequence or in parallel, t2 is a natural number and S1+1≤t2≤S, and a [2(t2)−1]th node and a [2(t2)-3]th node are on two terminals of the t2th class of the armature coils, and a [2(t2)-3]th third control switch is interconnected with the third common potential electrode at the [2(t2)−1]th node, and a [2(t2)-2]th second control switch is interconnected with the second common potential electrode at the [2(t2)]th node, and there are at most half of the third control switches short and at most half of the fourth control switches short at the same operation time, and the [2(t2)-3]th third control switch and the [2(t2)-3]th fourth control switch are not short at the same time, and the [2(t2)-2]th third control switch and the [2(t2)-2]th fourth control switch are not short at the same time.

Brush-less DC dynamo and a vehicle comprising the same

Life of this patent

Brush-less DC dynamo and a vehicle comprising the same

Life of this patent

Abstract

Claims16