Molding method using molding device to mold resin outer casing of stator unit and motor
A technology for stator units and resin shells, applied in electromechanical devices, manufacturing stator/rotor bodies, electrical components, etc., can solve the problems of incomplete coverage of resin, increased processing costs, and reduced production efficiency, achieving simple structure and reduced defect rate , the effect of increasing space
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Embodiment 1
[0034] In the molding method for molding the resin shell of the stator unit using the molding device of this embodiment, the molding device is first prepared, see figure 1 , figure 1 It is a schematic cross-sectional view of a molding device, wherein the molding device has a cavity 101 for accommodating a stator unit, and has a first mold 1 , and the first mold 1 has a central mold 11 extending along the axial direction of the cavity 101 . A resin inlet is provided on the molding device, and the resin inlet communicates with the cavity 101 , so that resin can be injected into the cavity 101 from the resin inlet.
[0035] see figure 2 , figure 2 It is a schematic diagram of the three-dimensional structure of the central mold 11. Different positions in the circumferential direction of the central mold 11 have a plurality of contact portions 111, and the plurality of contact portions 111 protrude radially outward relative to the outer peripheral surface of the central mold 11...
Embodiment 2
[0049] see Figure 5 and Figure 7 , Figure 5 It is a schematic cross-sectional view of a motor. The motor in this embodiment has a stator unit 3 and a resin case 4 molded by the method of molding the resin case of the stator unit using a molding device in the first embodiment. The stator unit 3 in this embodiment has a stator core 31, an insulator 32, and a coil 33. The stator core 31 has an annular core back 312 and a plurality of teeth extending radially inward from the core back 312. Section 311. The above is the prior art, which will not be repeated here.
[0050] The resin case 4 in this embodiment covers at least a part of the stator unit 3 , and the ends of the teeth 311 have a plurality of areas not covered by the resin case 4 . Here, the plurality of areas not covered by the resin case 4 is caused by the contact portion 111 of the molding device abutting against the tooth portion 211 , so that the position where the contact portion 111 abuts is not covered with ...
PUM
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Abstract
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