Stator punching of an electrically excited doubly salient pole motor
A technology of electric excitation double salient poles and motor stator, which is applied to the static parts of the magnetic circuit, the shape/style/structure of the magnetic circuit, etc., can solve the problems of the small speed regulation range of the frequency conversion motor, and achieve the improvement of the motor performance and good magnetic permeability. Energy, small size effect
Inactive Publication Date: 2016-08-10
NANJING NORMAL UNIVERSITY
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Problems solved by technology
At present, DC speed-regulating motors and high-voltage motors occupy a large proportion in the industry, but because DC speed-regulating motors have brushes, mechanical commutation will generate sparks, so they cannot be used in flammable, explosive and harsh environments; and frequency conversion motors Small speed range
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[0017] The punching structure of the present invention is as figure 1 As shown, there are two different groove types evenly distributed on the inner edge of the stator punch 1, the first groove type 2 is trapezoidal, the width of the groove bottom 6 is greater than the width of the notch 4, and there are 16 grooves in total; the second The slot type 3 is rectangular, the width of the slot bottom 6 is equal to the width of the notch 4, and there are 32 slots in total. Two groove 3 structures are evenly arranged between every two groove 2 . The outer diameter of the stator punch is 1180mm, the inner diameter is 1000mm, and the groove depth is 60mm.
[0018] Such as figure 2 and 3 As shown in the enlarged picture of the two groove types, groove shoulders 5 are respectively provided between the notch 4 and the groove bottom 6 of the two groove types, and the groove shoulders 5 are rounded protrusions with a radius of 1mm. The inclination angle θ of the rounded protrusion in t...
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The invention relates to a stator stamping sheet of an electrically excited double salient pole motor, which belongs to the technical field of motor design. There are two different slots evenly distributed on the inner edge of the stator punch. The first slot is trapezoidal, and the width of the slot bottom is greater than the width of the slot. The second slot is rectangular, and the width of the slot bottom is equal to the slot. Width; there are groove shoulders between the notch and the bottom of the two groove types, and the groove shoulders are rounded and raised; the first groove type and the second groove type are distributed at intervals. Compared with ordinary stamping sheet, the advantage of the design of the present invention is that it can not only reduce the cost, but also ensure the performance of the motor.
Description
technical field [0001] The invention relates to a stator stamping sheet of an electrically excited double salient pole motor, which belongs to the technical field of motor design. Background technique [0002] The motor is a device that realizes electric energy, and it plays an irreplaceable role in various fields of the national economy and people's daily life. At present, DC speed-regulating motors and high-voltage motors occupy a large proportion in the industry, but because DC speed-regulating motors have brushes, mechanical commutation will generate sparks, so they cannot be used in flammable, explosive and harsh environments; and frequency conversion motors The speed range is small. [0003] Electric excitation doubly salient motor is a new type of energy-saving motor that appeared in the 1990s with the rapid development of power electronics and microelectrics. Compared with traditional motors, it has significant advantages such as simple structure, flexible control,...
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IPC IPC(8): H02K1/16
Inventor 田恩刚陈宏田赵霞彭成
Owner NANJING NORMAL UNIVERSITY