Method and apparatus for winding a laminated core of an electric motor
A technology of laminated iron core and motor, which is applied in electromechanical devices, manufacturing motor generators, electric components, etc., can solve the problems affecting the quality and service life of motors, labor and time consumption, damage to coils and coil wire insulation paper, etc.
Active Publication Date: 2014-02-19
ROBERT BOSCH GMBH
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Problems solved by technology
Due to the mechanical post-processing of the magnetic coils due to the changeover from the holding device to the laminated core, damage to the coils, coil wires or insulating paper can occur, additional labor-intensive and time-consuming work steps are required, and the quality of the motor can be affected and service life
Method used
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[0026] FIG. 1 shows in several partial views 1A to 1E the structure of a stator 38 consisting of two laminated cores 12 which can be positively connected to one another via connecting elements 58 a , 58 b in the form of a keyway connection. connect. The two stator half-shells 54 consist of laminated iron sheets and have polar angles 18 on the inner side of the stator surface, which together with the inner surface of the laminated core 12 form polar angle slots 20, the magnetic coils 14 coil wire can be inserted into the polar angle slot. In this case, the inner side of the polarity angle slot 20 together with the inner surface of the laminated core 12 beyond this inner side defines a winding surface 22 on which the laminate to be wound is supported relative to the laminated core 12 Iron core 14. FIG. 1A shows a cross-section of the stator laminated core 12 of the half shell 54 of the stator 38 . FIG. 1B shows an end view of the stator half-shell 54 with the magnetic coil 14...
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The invention relates to an apparatus (10) for winding a laminated core (12) with a solenoid (14) for an electric motor, wherein a conductive, insulated coil wire (16) is wound into one or more grooves, in particular pole tip grooves (20) of a winding surface (22) of the laminated core (12). The apparatus comprises a holding device (23) for securing the laminated core (12) that is intended to be wound during the winding operation and a mating holding device (24). At least one winding support surface (26) of the mating holding device (24) can be moved or pivoted relative to the region of the winding surface (22) of the laminated core (12), which projects out of the pole groove. The winding support surface (26) has at least one coil shaping element (28), by means of which the winding position (32) of the coil wire (16) or a sub-region of the coil (14) that is projecting out of the groove (20) can be defined during the winding operation. In secondary aspects, the invention relates to a winding method, to an electric motor resulting from the method and to an electric machine tool equipped with said electric motor.
Description
technical field [0001] The invention relates to a device and a method for winding a laminated core with a magnetic coil for an electric motor, wherein electrically conductive and insulated coil wires are wound into one or more grooves, in particular poles, of the winding surface of the laminated core. in the sexual horn slot. Furthermore, the invention relates to an electric motor and an electric power tool in which the electric motor is used, in which a laminated core is wound by means of the device according to the invention. Background technique [0002] From the prior art, for example, electric motors, such as series motors, shunt motors or compound motors, which are used in particular in electric power tools such as angle grinders, drills, hammer drills, electric motors, are known, the stators of which are separate and can be combined in Together. For this purpose, the deflection field lines of the stator and the laminated core serving as a carrier for the stator coil...
Claims
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IPC IPC(8): H02K15/095
CPCH02K15/095
Inventor M.拉德J.哈格多恩
Owner ROBERT BOSCH GMBH