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Insulation fin construction of brushless DC motor stator winding

A brushless DC motor and stator winding technology, applied in the shape/style/structure of winding insulation, electrical components, electromechanical devices, etc., can solve the problem of long operation time, no effect, and influence on the inner diameter of the stator core lamination 1, etc. problems, to achieve the effect of saving material costs and reducing product costs

Inactive Publication Date: 2009-03-25
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the structure of the insulating sheet 4 in the prior art is composed of a bottom surface 5 and two side surfaces 6. When the insulating sheet is installed, the two bottom surfaces 5 of the two insulating sheets 4 need to be bonded, relatively juxtaposed, and then put into the trunking 2 , filled between the copper wire coils 3, the working time is long, the parts at both ends have no effect, and it is easy to miss the binding when binding the wires, which may affect the inner diameter of the stator core lamination 1, resulting in poor coordination between the stator core and the rotor

Method used

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  • Insulation fin construction of brushless DC motor stator winding
  • Insulation fin construction of brushless DC motor stator winding
  • Insulation fin construction of brushless DC motor stator winding

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Embodiment Construction

[0026] The insulating sheet structure of the brushless DC motor stator winding of the present invention will be described in detail below with reference to the accompanying drawings and embodiments:

[0027] As shown in FIGS. 4-6 , the stator lamination is composed of a plurality of iron core laminations 1 . Radial wire slots 2 are formed inside the iron core laminations 1 , and coils 3 are wound inside the wire slots 2 . Inside the wire slot 2, with the coil 3 as the center, a plurality of insulating sheets 7 are arranged. The insulating sheets 7 are located between the iron core lamination 1 and the coil 3, and the insulating sheets 7 serve as a link between the coil 3 and the rotor rotating inside the stator. The insulation between them will not cause a short circuit, so that the coil 3 will not be damaged due to the short circuit.

[0028] The insulating sheet 7 is composed of a bottom surface 8 and two side surfaces 9, and the length of the two side surfaces 9 is shorter ...

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Abstract

The invention discloses an insulation strip structure for a DC brushless motor stator winding. The insulation strip comprises a bottom surface and two side surfaces, and the length of the side surfaces at the two ends is 8 to 10 mm shorter than the bottom surface. The two ends of the side surfaces are made into inclined surfaces, and the side of the inclined surfaces and the side of the bottom surface form an angle of 30 to 60 degrees. The invention avoids possible line leakage when wires is bound, does not affect the insulation characteristic of the rotor ion core, and at the same time saves material cost and reduces product cost.

Description

technical field [0001] The invention belongs to an insulating sheet structure, in particular to an insulating sheet structure used for the stator winding of a single-phase DC brushless motor. Background technique [0002] Typically, single-phase motors are used as the driving source for most household appliances such as compressors, washing machines, and electric fans. Since the brushless DC motor replaces the brush and commutator with an electronic rectifier, it not only has the simple structure, reliable operation and convenient maintenance of the AC motor, but also has the high operating efficiency, no excitation loss and good speed regulation performance of the DC motor. It can also avoid many advantages such as mechanical noise and electromagnetic noise, and is widely used in various fields of the national economy including household appliances. [0003] The motor is mainly composed of a stator and a rotor. The stator has an independent coil structure, and the rotor ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/34H02K29/00
Inventor 洪涛
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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