Generator punching plate
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 light weight
Inactive Publication Date: 2016-05-11
CHONGQING ZHIREN ELECTRIC EQUIP
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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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[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 sheet 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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The invention provides a generator punching plate, which comprises a plate body with a cyclic structure, wherein a round hole matched with a rotor is arranged at the middle part of the plate body; a plurality of coil slots and coil teeth are sequentially arranged on an inner circle of the plate body; the coil slots are trapezoidal slots; each coil slot comprises a slot opening, a slot top part and a slot bottom part; the coil teeth are rectangular teeth; the width ratio of slot bottom parts to the coil teeth is (1.8 to 1) to (2.3 to 1); and the width ratios of the slot top parts to the coil teeth is (1.2 to 1) to (1.7 to 1). Through a special design of the coil slots and the coil teeth, the generator punching plate has high tooth flux density and smaller ratio of final air-gap magnetic potential in comparison with total magnetic potential, and finally forms the magnetic saturation phenomenon, so that power volume reduction can be achieved; the power volume of a traditional generator is compressed; the power density is improved; partial weight of a generator is reduced; and the total weight of a unit is finally 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): H02K1/16
CPCH02K1/16H02K1/165H02K2213/03
Inventor 张兵李曦
Owner CHONGQING ZHIREN ELECTRIC EQUIP