Stator system and method of manufacturing same
A subsystem and stator winding technology, applied in the manufacture of stator/rotor bodies, control of mechanical energy, shape/style/structure of winding conductors, etc., can solve problems such as reducing heat transfer, poor heat dissipation, and limited maximum efficiency, and achieve low cost The effect of production
Active Publication Date: 2020-11-24
麦克森国际股份公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, compared to metal receiving sleeves, plastic overmoulding has the disadvantage that plastic has a poorer heat transfer and thus less heat dissipation to the outside
Mainly in the case of motors that can be overloaded and have hollow-core hollow cylindrical stator windings, this leads to maximum efficiency becoming unnecessarily limited due to reduced heat transfer
Method used
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[0025] In the following description, equivalent components are designated by the same reference numerals. If a drawing contains reference signs which are not explicitly described in the description to which the drawing belongs, reference is made to the preceding or subsequent description of the drawing.
[0026] Figures 1 to 4 Both show one and the same stator system 1 according to the invention in different views, wherein, in image 3 and 4 The outer holding structure 4 of the stator system 1 shown in the figure 1 and 2 shown in .
[0027] The stator system shown in the exemplary embodiment is a small size high speed brushless motor. The stator system 1 comprises a hollow cylindrical stator winding 2 which can be figure 1 Best observed in the exploded view of . The hollow-core, hollow-cylindrical stator winding has a three-phase design in this exemplary embodiment and thus has a three-phase winding whose winding wire taps 14 are led to the outside at one axial end of ...
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The invention relates to a stator system for an electric motor with an internal rotor. The stator system includes a stator winding and a metallic outer return path radially enclosing the stator winding. This external return path is surrounded by a retaining structure that holds the stator system together. According to the invention, the retaining structure is injection molded with plastic on the outer return path in the form of a cage, so that the outer return path is not covered by the retaining structure in some areas but exposed. The stator system can be produced particularly easily and inexpensively, and at the same time ensures improved heat dissipation to the outside. The invention also relates to a method of manufacturing the stator system.
Description
technical field [0001] The invention relates to a stator system with an electric motor for an internal rotor. A typical stator system includes a stator winding and a metallic outer return path radially enclosing the stator winding. This external return path is surrounded by a retaining structure that holds the stator system together. Background technique [0002] Stator systems are known from the prior art which use a receiving sleeve as a holding structure, which in most cases consists of metal, or the latter (holding structure) by injection molding plastic around it Formed, the retaining structure completely encloses the external return path. [0003] A generic stator system is known, for example, from EP2017944A1. The external return path of this stator system consists of a stack of laminated plates, and the retaining structure is formed by a thin-walled metal containment sleeve. [0004] By injecting plastic around the plates, the individual components of the stator ...
Claims
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IPC IPC(8): H02K1/12H02K1/20H02K3/50H02K15/02
CPCH02K1/12H02K1/20H02K3/50H02K15/02H02K3/47H02K5/08H02K5/161H02K5/225H02K1/14H02K3/28H02K7/08H02K5/02H02K5/04
Inventor T·哈尼R·谢令J·梅耶
Owner 麦克森国际股份公司