Conductor section and stator assembly with same, and motor

A conductor and component technology, applied in the field of motors, can solve the problems of poor insulation, small bending rounded corners, easy damage to the surface paint of flat copper wires, etc., to achieve the effect of ensuring insulation performance, facilitating welding, and reducing the risk of damage

Inactive Publication Date: 2019-04-05
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related art, in the hairpin coils of the same layer used in the plug-in stator assembly, the U-shaped head is bent inwardly towards one of the legs to form a bending step, which will make The end of the U-shaped part of the hairpin coil (that is, the hairpin end) becomes higher; in addition, because the bending fillet of the bending step is too small, it is easy to damage the paint on the surface of the flat copper wire, resulting in poor insulation

Method used

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  • Conductor section and stator assembly with same, and motor
  • Conductor section and stator assembly with same, and motor
  • Conductor section and stator assembly with same, and motor

Examples

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Embodiment 1

[0109] like Figure 1a As shown, the conductor segment 100 according to this embodiment includes a bent portion 110 , a first in-slot portion 120 and a second in-slot portion 130 . In this example, if Figure 1a and 2 As shown, the conductor segment 100 is made of flat copper wire.

[0110] like figure 2 and Figure 4a As shown, the bending part 110 includes a first layer section 111, a second layer section 112 and a connecting section 113 connected between the first layer section 111 and the second layer section 112, and the first layer section 111 and the second layer section 112 are arc-shaped. The first in-trough part 120 is connected to an end of the first layer section 111 away from the connecting section 113 , and the second in-trough part 130 is connected to an end of the second layer section 112 away from the connecting section 113 .

[0111] The conductor segment 100 also includes: a first connecting portion 141 and a second connecting portion 142, a first weldi...

Embodiment 2

[0120] like Figure 1a As shown, the conductor segment 100 according to this embodiment includes a bent portion 110 , a first in-slot portion 120 and a second in-slot portion 130 . In this example, if Figure 1a and 2 As shown, the conductor segment 100 is made of flat copper wire.

[0121] like figure 2 and Figure 4a As shown, the bending part 110 includes a first layer section 111, a second layer section 112 and a connecting section 113 connected between the first layer section 111 and the second layer section 112, and the first layer section 111 and the second layer section 112 are arc-shaped. The first in-trough part 120 is connected to an end of the first layer section 111 away from the connecting section 113 , and the second in-trough part 130 is connected to an end of the second layer section 112 away from the connecting section 113 .

[0122] The conductor segment 100 also includes: a first connecting portion 141 and a second connecting portion 142, a first weldi...

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Abstract

The invention provides a conductor section and a stator assembly with the same, and a motor. The conductor sections are adapted to be inserted into the same slot layer of different stator slots of a stator core; each conductor section is formed in a general U-shaped shape and comprises a bending portion, and a first groove inner portion and a second groove inner portion which are connected to thebending portion separately; the end part of the first groove inner portion is connected with a first welding part; the end part of the second groove inner portion is connected with a second welding part, wherein the free ends of the first welding part and the second welding part are both provided with chamfering parts; the bending part comprises a first layer section, a second layer section, and aconnecting section connected between the first layer section and the second layer section, wherein one of the first layer section and the second layer section is twisted, relative to the connecting section, in the radial direction of the stator assembly, or the first layer section and the second layer section are twisted, relative to the connecting section, in a direction opposite to the radial direction of the stator assembly separately. According to the conductor section provided by the embodiments of the invention, the offline is reliable, and the welding is convenient.

Description

technical field [0001] The invention relates to the field of motors, in particular to a conductor segment of a stator assembly, a stator assembly including the conductor segment, and a motor including the stator assembly. Background technique [0002] In the related art, in the hairpin coils of the same layer used in the plug-in stator assembly, the U-shaped head is bent inwardly towards one of the legs to form a bending step, which will make The end of the U-shaped part of the hairpin coil (that is, the hairpin end) becomes higher; in addition, because the bending fillet of the bending step is too small, it is easy to damage the paint skin on the surface of the flat copper wire, resulting in poor insulation. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a conductor section of a stator assembly, the conductor section is reliable off-li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/04H02K3/12H02K3/28H02K3/50
CPCH02K3/04H02K3/12H02K3/28H02K3/50
Inventor 林焕炜舒圣浪游斌
Owner BYD CO LTD
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