Generator punching sheet
A generator and punching technology, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of magnetic field density saturation and low power density, and achieve the effects of compressing power volume, increasing power density, and reducing power volume
Inactive Publication Date: 2021-06-18
王珠
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Problems solved by technology
[0003] In order to solve the problems of too low power density and inability to form magnetic field density saturation in the prior art generator punching sheet, the present invention provides a generator punching sheet
Method used
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Embodiment Construction
[0016] figure 1 It is a structural schematic diagram of the punching plate of the generator of the present invention; figure 2 for figure 1 Schematic diagram of the local enlarged structure of the punching plate of the middle generator. In the figure, 1 is the sheet body, 2 is the round hole, 3 is the coil slot, 4 is the coil tooth, 31 is the notch, 32 is the top of the slot, 33 is the bottom of the slot, and 5 is the welding gap.
[0017] according to figure 1 and figure 2 It can be seen that the punching plate of the generator includes a ring-shaped sheet body 1, a round hole 2 matching with the rotor is provided in the middle of the sheet body 1, and a plurality of coil slots 3 and coil teeth are sequentially arranged on the inner circle of the sheet body 1 4. The coil slot 3 is a trapezoidal slot, which includes a slot opening 31 , a slot top 32 and a slot bottom 33 , the slot opening 31 is adjacent to the slot top 32 , and the slot bottom 33 is opposite to the slot...
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A generator punching sheet comprises a sheet body with an annular structure, a circular hole matched with a rotor is arranged in the middle of the sheet body, and a plurality of coil grooves and coil teeth are sequentially arranged on the inner circle of the sheet body. The coil groove is a trapezoid groove and comprises a groove opening, a groove top and a groove bottom. The coil teeth are rectangular teeth, the ratio of the width of the groove bottom to the width of the coil teeth is 1.8: 1-2.3: 1, and the ratio of the width of the groove top to the width of the coil teeth is 1.2: 1-1.7: 1. According to the generator punching sheet, through the special design of the coil grooves and the coil teeth, the tooth flux density is high, the final air gap magnetic potential is smaller than the total magnetic potential, and the magnetic saturation phenomenon is finally formed, so that the power volume can be reduced, the power volume of a traditional generator is reduced, and the power density of the traditional generator is improved; and the weight of the generator part is reduced, and finally the weight of the total unit is reduced.
Description
technical field [0001] The invention relates to the technical field of generators, in particular to a punching plate of a generator. Background technique [0002] The stator of the generator is composed of three parts: the stator core, the stator winding and the frame. The stator core is composed of overlapping punched sheets of high magnetic permeability material. The structure of the punching plate directly affects the efficiency, life, performance and assembly production efficiency of the generator. However, the stator punching in the prior art adopts the design method of wide teeth and narrow slots in the design process. However, this design method of wide teeth and narrow slots has the following problems: because the tooth width is too wide, the tooth magnetic density is low , the magnetic density of the yoke is also low, and the slot area is small, the overall power current that can be carried is limited, and finally the power density is too small. Because the punchi...
Claims
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IPC IPC(8): H02K1/12H02K1/16
CPCH02K1/12H02K1/165H02K2213/03
Inventor 王珠
Owner 王珠