Coil- slot wedge inserting device, coil-slot wedge inserting method and slot wedge
A technology of insertion device and coil installation, applied in electromechanical devices, prefabricated windings embedded in motors, laying solid insulation, etc., can solve the problems of easy buckling of slot wedges, problems in insertion performance, increased resistance, etc., and achieve improved motor efficiency and stability. The effect of improving the performance and improving the duty cycle of the coil
Inactive Publication Date: 2009-06-10
MITSUBISHI ELECTRIC CORP
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Problems solved by technology
In the method of inserting the coil into the slot, at the same time as the coil is inserted, in order to insulate the coil from the surroundings, it is necessary to press one end of the wedge with a member called a wedge pusher against the insulating paper called a slot wedge. The end of the slot can be inserted into the slot, however, due to the increase in the density of the coil, the insertion resistance of the slot wedge into the slot increases. Due to the flexibility of the slot wedge, when the end of the slot wedge is pushed to insert the slot wedge into the slot In the state-of-the-art insertion method, the wedge is easily buckled, and there is a problem with the insertion performance of the wedge into the groove
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[0031] Implementation form 1
[0032] figure 1 It is a side cross-sectional view showing the coil-slot wedge insertion device according to the first embodiment of the present invention, and the state in which the wound coil and slot wedges are inserted into the slots of the stator core of a motor or the like using the device. In the figure, 1 is a stator core of a motor or the like, and is supported by a fixed core support part not shown in the figure. 2 is the wound coil inserted into the slot of the stator core, and 3 is the vane for suspending the coil to insert the wound coil 2 into the slot, and is arranged on the circumference corresponding to the arrangement of the slot. 4 is a blade holder that holds the blade 3 and is driven in the axial direction of the stator core, 5 is a blade holder drive shaft for driving the blade 3 in the axial direction of the stator core via the blade holder, and 6 is a blade holder drive shaft for supporting the suspension on the blade 3 The co...
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The present invention provides a coil-slot wedge insertion device capable of improving slot wedge insertion depravation generated when seaking for increasing density of coil in stator core slot of an electric motor. According to the invention, when together with winding coils, packing coils inserted into each unit of the slot and inserting the slot wedges for periphery insulation into the stator core, projections are arranged on position corresponding to the slot opening section on periphery side face on a separation device moving in the axis direction of the core together with the winding coils, and the projections hook the steps in condition that the slot wedge has steps.
Description
Technical field [0001] The present invention relates to a coil-slot wedge insertion device and a coil-slot wedge insertion method for improving the deterioration of the insertability of the slot wedge inserted into the slot of the stator core caused by the increase in the density of the coils in the stator core slot And slot wedges. Background technique [0002] The motor is composed of a stator and movable elements that form magnetic poles. Among them, the stator is composed of a core composed of a yoke portion and a plurality of teeth (teeth) as protrusions formed on the inner periphery thereof, and a space called a slot formed between adjacent teeth is utilized. The coils wound on the respective teeth form magnetic poles by energizing the respective coils. [0003] As a method of winding the coil on the tooth portion, the following method is generally adopted, that is, using a device called a coil-slot wedge insertion device, the pre-wound coil and the coil are inserted in uni...
Claims
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Login to View More IPC IPC(8): H02K15/06H02K15/10H02K3/487
Inventor 本桥昌也荒井利夫秋田裕之
Owner MITSUBISHI ELECTRIC CORP