Mold core for stator injection mold and stator injection mold with same
A technology for injection molds and shaping cores, which is applied in the direction of coating, etc., can solve the problems that the stator is difficult to put into the mold cavity, the stator is short of material, and the precision of the stator is low, so as to reduce the contact area, improve the precision, and reduce the effect of interference
Active Publication Date: 2015-11-25
GUANGDONG WELLING ELECTRIC MACHINE MFG
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Problems solved by technology
However, in the injection molding process, the stator and the core are easy to interfere, making it difficult to put the stator into the mold cavity, and it is difficult for the injection material to fully flow into the inner cavity to wrap the inside of the stator during injection molding, which is prone to material shortage inside the stator, and the precision of stator injection molding is low.
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[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...
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The invention discloses a mold core for a stator injection mold and the stator injection mold with the mold core. The mold core for the stator injection mold comprises a fixed mold core body matched with an inner cavity of a stator to be subjected to injection molding. Convex parts and concave parts are arranged on the surface, matched with the inner circumferential face of the inner cavity of the stator to be subjected to injection molding, of the fixed mold core body. The convex parts protrude towards the inner circumferential face of the inner cavity of the stator to be subjected to injection molding, and the concave parts are recessed in the direction far away from the inner circumferential face of the inner cavity of the stator to be subjected to injection molding. According to the mold core for the stator injection mold, interference between the mold core and the stator can be relieved, and the stator can be placed in a mold cavity conveniently; moreover, the phenomenon that the inner side of the stator lacks materials can be avoided, and injection molding precision of the stator can be improved.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a core for a stator injection mold and a stator injection mold with the core. Background technique [0002] The plastic-encapsulated motor in the related art generally adopts a strip-shaped stator core, and the strip-shaped stator core is bent into a circle after being wound with wires, and the joints are welded to form a stator. It is difficult to guarantee the roundness and concentricity of the stator, which will cause vibration and noise of the plastic-encapsulated motor. For this reason, a core is used to fix the inner diameter of the stator in the injection mold, and the dimensions of the core and the inner diameter of the stator are designed to be tightly matched to ensure accuracy. However, during the injection molding process, the stator and the core are likely to interfere, making it difficult to put the stator into the mold cavity, and it is difficult for the injection ...
Claims
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Login to View More IPC IPC(8): B29C45/14B29C45/26
CPCB29C45/14008B29C45/2602
Inventor 李虎唐剑武
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG