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Stator punching sheet

A stator punching and yoke technology, which is applied in the field of motor accessories, can solve problems such as stator core cracking, motor burnout, and low assembly efficiency, and achieve the effects of reducing punching gaps, optimizing the overall structure, and improving waterproofing

Inactive Publication Date: 2015-10-07
ZIBO SUPER MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the problem of the performance index of the existing motor, after the stator punching is welded into the stator core, the structure cannot play the role of waterproof and impact resistance. Most manufacturers use a layer of coating on the outer circle of the iron core during production. The method of waterproof glue is used for waterproofing. This method causes the appearance of the motor to be unattractive, and causes problems such as low assembly efficiency and low assembly quality. After the motor is vibrated and flooded, it is easy to crack the stator core and the motor is burned by water.

Method used

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Embodiment Construction

[0018] like figure 1 , figure 2 As shown, a stator punching piece includes a tooth portion 2 and a yoke portion 1. Twelve self-locking points 4 are added to the yoke portion 1 of the stator punching piece, and the self-locking points 4 are distributed at equal intervals along the circumference. Add 6 welding notches 3 to the outer circle of the yoke part 1 of the stator punching sheet. The inner edge of the welding notch 3 is notched side 6, and there is a corrugation in the middle of the notch side 6. The highest point of the corrugated shape is a welding bump 5. The height of the welding bump 5 is 0.5mm, and the radius of the welding bump 5 is smaller than the radius of the outer circumference of the lip edge 6, so as to prevent damage to the welding bump 5 during lip processing.

[0019] After the stator punches are laminated, the self-fastening points 4 of the upper and lower stator punches are fastened to each other, so that the stator punches are tightly connected, and...

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PUM

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Abstract

The invention relates to a motor accessory, and particularly relates to a stator punching sheet, which comprises a tooth part and a yoke part, wherein multiple auto-buckled points distributed at equal distances are arranged on the yoke part along the circumference; each auto-buckled point is sunk inwardly; the outer circumference of the yoke part is provided with multiple welding notches distributed at equal distances along the circumference; the inner edge of each welding notch is a seam edge; the middle of the seam edge is provided with wave; and the highest point of the wave is a welding convex point. Conditions of a cracked stator iron core and poor waterproof effects after the stator punching sheets are overlapped and welded can be effectively prevented, and the stator punching sheet of the invention can be firmly welded and is waterproof.

Description

technical field [0001] The invention relates to a motor accessory, in particular to a stator punch. Background technique [0002] Traction motors are widely used in the electric vehicle industry. At present, electric vehicles have higher and higher requirements for noise and waterproof. The space for motor assembly on the electric vehicle is limited. In order to ensure that the motor can meet the requirements of customers, the positioning support of the original casing is changed to the positioning support of the stator core during production. In this way, the stator core must play the role of support and positioning, and Play a waterproof role. [0003] Due to the problem of the performance index of the existing motor, after the stator punching sheet is welded into the stator core, the structure cannot play the role of waterproof and impact resistance. Most manufacturers use a layer of coating on the outer circle of the iron core during production. The method of waterproo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/06
Inventor 吕宏
Owner ZIBO SUPER MOTOR