Coil, induction motor for motor and its stator manufacturing method

A technology of induction motors and electric motors, applied in the field of electric motors, can solve problems such as shortening the life of electric motors, and achieve the effects of improving efficiency, reducing production costs, and saving man-hours

Inactive Publication Date: 2006-05-03
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a well-recognized fact that for every 10°C increase in the temperature of the motor coil, the life of the motor will be shortened by 1 / 2.

Method used

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  • Coil, induction motor for motor and its stator manufacturing method
  • Coil, induction motor for motor and its stator manufacturing method
  • Coil, induction motor for motor and its stator manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 1 It is a flow chart of the manufacturing process of the coil for the motor of the present invention. The motor coil of the present invention includes: a core wire with electrical conductivity and a ceramic insulating film formed on the surface of the core wire; the ceramic insulating film is used to increase the maximum allowable temperature of the motor coil.

[0037] Depend on figure 1 It can be seen that the manufacturing process of the coil for the motor of the present invention includes the following stages:

[0038] Stretching stage S10: first, the core wire used for the motor coil is stretched by wire drawing process, so that the diameter of the core wire reaches the specified standard;

[0039] Cleaning stage S20: Then, remove impurities on the surface of the core wire after the stretching stage S10;

[0040] Heat treatment stage S30: Then, the core wire after the cleaning stage S20 is heated to a certain temperature and then slowly cooled to anneal i...

Embodiment 2

[0048] Refer below figure 2 The induction motor of the present invention is described in detail:

[0049] figure 2 It is a schematic cross-sectional structure diagram of the induction motor of the present invention. Such as figure 2 As shown, the induction motor of the present invention includes: a stator 10, a rotor 20, and a rotating shaft 30; There is a gap a between them; the rotating shaft 30 is pressed into the center of the rotor 20 to transmit the rotating force of the rotor.

[0050] The stator 10 includes: a stator coil that generates a rotating magnetic field and a magnetic stator core 11 that forms the passage of the magnetic field lines of the rotating magnetic field when the AC power is turned on; the stator core 11 is composed of several circular silicon steel sheets 11a It is stacked, and the inner peripheral surface of the stator core 11 is uniformly formed with several stator coil slots 13 along the axial direction. Viewed from the end face of the stat...

Embodiment 3

[0059] The manufacturing method of the stator provided with an insulating film on the coil end turns of the stator coil in the above-mentioned induction motor is described below:

[0060] image 3 It is a flow chart of the manufacturing process of the induction motor stator of the present invention. Depend on image 3 As can be seen, the manufacturing method of the stator of the induction motor of the present invention comprises the following stages:

[0061] Stamping stage S110: first, use a mold to stamp and form several stator coil slots 13 on the inner peripheral surface of the silicon steel sheet 11a;

[0062] Heat treatment stage S120: performing annealing heat treatment on the silicon steel sheet 11a after the stamping stage S110, heating the silicon steel sheet 11a to a certain temperature, and then cooling it; in order to eliminate the residual mechanical stress in the silicon steel sheet 11a and restore its mechanical properties;

[0063] Lamination stage S130: La...

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PUM

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Abstract

The invention relates to a motor used coil which comprises: a chip wire with conducting function and a ceramic insulating film formed on the surface of the chip wire; the stator core of the sensing motor of the motor used coil is formed by a plurality of round laminated silicon-steel sheets; the inner around side of the stator evenly forms a plurality of stator coil grooves on shaft direction; the stator coil grooves form radial radioactive type structure; the coil end turn of the stator coil is fixed on the stator core by the insulating film; the method for making the stator of the sensing motor comprises: punching stage, heat processing stage, laminating stage, embedding stage and drenching stage.

Description

technical field [0001] The present invention relates to a motor, and more particularly to a coil for a motor, an induction motor using the coil for a motor, and a method for manufacturing the stator. Background technique [0002] As we all know, a motor is a device that converts electrical energy into mechanical energy. According to the type of its power supply, motors can be divided into two types: DC motors and AC motors. Induction motors are a type of AC motors. [0003] The working principle of the induction motor is: an alternating current is generated in the primary winding directly connected to the power supply, and the alternating current generates an alternating magnetic field around the primary winding. Through the principle of electromagnetic induction, the alternating magnetic field generates an induced current in the secondary winding, The induced current in the secondary winding also generates an alternating magnetic field, which interacts with the alternatin...

Claims

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Application Information

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IPC IPC(8): H02K3/30H02K1/16H02K1/26H02K3/12H02K15/02H02K15/12
Inventor 金太勋朴炯俊
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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