Three-phase single-layer chain type winding wire embedding method, stator assembly and three-phase motor
A chain winding, three-phase motor technology, applied in the direction of prefabricated windings embedded in motors, windings, electric components, etc., can solve the problems of three-phase load imbalance, large winding deformation, damage to insulation, etc., to improve efficiency and reduce three-phase Resistance, the effect of reducing the difficulty of embedding
Active Publication Date: 2022-04-12
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0006]
Therefore, the present invention provides a three-phase single-layer chain winding embedding method, a stator assembly, and a three-phase motor, which can overcome the vulnerable wires and damaged insulation of the three-phase single-layer chain winding embedding method in the prior art. The large deformation of the winding first embedded in the stator slot leads to the lack of unbalanced three-phase load
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[0037] see in conjunction Figure 1 to Figure 3 As shown, according to an embodiment of the present invention, a three-phase single-layer chain winding embedding method is provided, including:
[0038] Dividing each phase winding in the same stator slot 101 into n coils, where n is an integer greater than 1;
[0039] The n coils of each phase are embedded in the corresponding target stator slots 101 in n times according to the preset embedding rules. In this technical solution, the winding components in each slot of the single-layer chain winding are embedded multiple times when inserting the wire. On the one hand, it can reduce the risk of damaging the copper wire during each insertion process, reduce the difficulty of inserting the wire, and improve efficiency. On the one hand, by adjusting the phase sequence of the embedded wires between each time, the three-phase windings are uniformly deformed during the shaping process, and a highly symmetrical three-phase load is obtai...
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The invention provides a three-phase single-layer chain type winding wire inserting method, a stator assembly and a three-phase motor, and the method comprises the steps: dividing each phase winding in the same stator groove into n parts of coils, and n is an integer greater than 1; and embedding the n parts of coils in each phase into the corresponding target stator slots in n times according to a preset coil embedding rule. According to the invention, on one hand, the risk of copper wire damage in each coil inserting process can be reduced, the coil inserting difficulty can be reduced, and the efficiency can be improved, and on the other hand, by adjusting the coil inserting phase sequence between each time, the three-phase winding can be uniformly deformed in the shaping process, and a high-symmetry three-phase load can be obtained, so that the unbalance of three-phase resistance and inductance of the stator can be effectively reduced.
Description
technical field [0001] The invention belongs to the technical field of motor design, and in particular relates to a three-phase single-layer chain winding embedding method, a stator assembly and a three-phase motor. Background technique [0002] The commonly used single-layer chain winding distribution is as follows: figure 1 As shown in the figure, the U phase in the single-layer chain winding with 2 poles and 12 slots in the figure is taken as an example. The current is input from the node U1 and then 1→6, 12→7 respectively. At this time, 1→6 and 12→7 are head to tail Connect to form a 2-way parallel circuit; if the No. 6 slot U21 node is connected to the 12 input terminal, it is a 1-way series circuit; the other two-phase principles are consistent with the U phase. figure 2 It is a schematic diagram of stator plane development, 101 stator slot, 102 stator winding, 103 stator end winding (the circle indicates the span), wherein 102 stator winding is composed of copper wi...
Claims
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IPC IPC(8): H02K15/06H02K1/16H02K3/12H02K3/48
CPCY02T10/64
Inventor 闫瑾李晓东陈嘉星蔡由俊廖繁林
Owner GREE ELECTRIC APPLIANCES INC