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Multi-layer hairpin type flat wire winding, stator and motor

A flat wire winding and card issuing technology, applied in the electrical field, can solve the problems of difficult production and manufacturing, complicated structure of flat wire motor winding stator, etc., to save material cost and manufacturing cost, reduce complexity, and small proportion of winding space Effect

Pending Publication Date: 2021-12-17
华域汽车电动系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-layer clip-type flat wire winding stator and motor. The multi-layer clip-type flat wire winding stator and motor should solve the complex structure of the flat wire motor winding stator in the prior art, Manufacturing difficult technical issues

Method used

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  • Multi-layer hairpin type flat wire winding, stator and motor
  • Multi-layer hairpin type flat wire winding, stator and motor
  • Multi-layer hairpin type flat wire winding, stator and motor

Examples

Experimental program
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Effect test

Embodiment 1

[0024] This embodiment takes 48 slots, 8 poles, 8 layers, three phases, 4 branches, and star connection as an example to expand the description. The lead-out line end is a three-phase lead-out line, and the tail ends of all the branches are connected together to form a star point line. terminal, forming a three-phase four-branch parallel star-connected armature, and then forming a motor.

[0025] Such as figure 2 As shown, the embodiment of the present invention is illustrated by taking 48 slots, 4 pole pairs, 4 parallel branches per phase, and 8 conductor layers per slot. The implementation method is:

[0026] The flat copper wire wave winding armature winding of this embodiment has an 8-layer wave winding structure, and the winding lead-out terminals U1+, U2+, U3+, U4+, U1-, U2-, U3-, U4-, V1+, V2+, V3+, V4+, V1-, V2-, V3-, V4-, W1+, W2+, W3+, W4+, W1-, W2-, W3-, W4- respectively correspond to the 4 branches of UVW three-phase, the suffix is ​​"+ " are respectively conne...

Embodiment 2

[0042] According to Embodiment 1, the connection method of the four branches of each phase may be that all the branches of the same phase are connected end-to-end to form a branch, and then a star connection or a delta connection is implemented.

Embodiment 3

[0044] According to Embodiment 1, the connection method of the four branches of each phase can be that two branches of the same phase are first connected in series and then connected in parallel, that is, U1 and U3 are connected in series, U2 and U4 are connected in series, and U1, U3, U2 and U4 are connected in parallel to form two branches. , and then implement star connection or delta connection form.

[0045] In the multi-layer hairpin flat wire winding stator of the present invention, the long-distance or short-distance connection occurs only when the cross-layer transposition is to the equivalent slot of the adjacent slot, so that the head end and tail end of the branch are located along the The innermost layer and the outermost layer in the radial direction of the armature, a single branch of each phase will pass through the equivalent positions of all slots and layers of the phase, and each branch is spirally connected along the radial direction of the stator circumfere...

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Abstract

A multi-layer hairpin type flat wire winding stator comprises a stator core and a hairpin flat wire wave winding. Stator slots are arranged in the stator core, and the hairpin flat wire wave winding is embedded in the stator slots. The hairpin flat wire wave winding comprises more than two branches. The stator slots where three-phase windings of the hairpin flat wire wave winding are located are arranged in a pairwise spaced mode and sequentially arranged. Any branch is changed to an equivalent slot of the adjacent stator slot after circling by half of layers on the circumference, and long-distance or short-distance connection is adopted when the branch is changed to the equivalent slot of the adjacent stator slot in a cross-layer mode, so that the head end and the tail end of any branch are located on the innermost layer and the outermost layer in the radial direction of the stator. Long-distance or short-distance connection occurs only when cross-layer transposition is performed to equivalent slots of adjacent stator slots, so that the head ends and the tail ends of the branches are located on the innermost layer and the outermost layer in the radial direction of an armature, and a single branch of each phase can pass through equivalent positions of all layers of all the stator slots of the phase where the single branch is located.

Description

technical field [0001] The invention relates to the electrical field, in particular to a motor, in particular to a multi-layer hairpin type flat wire winding stator and motor. Background technique [0002] With the increasing development of flat wire motors, in the prior art, the variety and complexity of flat wire motor windings greatly increases the difficulty of automatic production of motors, and at the same time brings other risks such as increased insulation risks and increased costs. At the same time, due to The complexity of the winding increases the volume of the motor and increases the space ratio. Contents of the invention [0003] The purpose of the present invention is to provide a multi-layer clip-type flat wire winding stator and motor. The multi-layer clip-type flat wire winding stator and motor should solve the complex structure of the flat wire motor winding stator in the prior art, Manufacturing difficult technical problems. [0004] A multi-layer hair...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/04H02K3/12H02K3/28H02K1/16
CPCH02K3/04H02K3/12H02K3/28H02K1/16
Inventor 王环环潘陶骆文韬黄峰李乙谢迪宋志环瞿亮徐锋
Owner 华域汽车电动系统有限公司
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