Novel stator core
By creating grooves on the stator pressure ring and welding connecting ribs to the stator laminations, combined with double-headed bolts for fastening, the difficulty of stacking caused by the large outer diameter of the stator laminations was solved, achieving effective stacking of the stator core and meeting the usage requirements.
Patent Information
- Application Number
- CN202520381118.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing stator laminations have a large outer diameter, making stacking difficult and causing the stator core to not meet the requirements, especially due to the large spring-out amount in the inner teeth of the stator.
The stator pressure ring is made with grooves and connected to the stator laminations by welding. It is fastened near the inner circle of the stator and at the outer circle of the stator by double-ended bolts to ensure that the stator laminations are stacked to meet the requirements.
It effectively solved the problem of difficult stator core stacking, ensured that the outer diameter of the stator core met the usage requirements, and reduced the spring-out amount of the inner teeth of the stator.
Smart Images
Figure CN223858913U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to half direct drive variable frequency permanent magnet integrated machine stator lamination press technology field especially relates to a novel stator core. BACKGROUND
[0002] Half direct drive variable frequency permanent magnet integrated machine structure is special, facing the current use condition requirement half direct drive variable frequency permanent magnet integrated machine by past high speed small power motor develops to now need low speed high power motor, motor develops from thin short shape to thick long shape, lead to stator lamination outer diameter bigger and bigger, past stator lamination outer diameter is pressed tightly and cannot satisfy the demand of the present manufacturing diameter larger stator core, need to punch the middle part of stator lamination and fix at the same time to guarantee that stator lamination is pressed and is stacked into the stator core that meets the use requirement, the fixed mode of this stator lamination outer circle cannot satisfy the requirement that half direct drive variable frequency permanent magnet integrated machine stator core meets the drawing use. SUMMARY
[0003] The utility model discloses a novel stator core, which solves the problem of large stator lamination outer diameter and difficult stacking.
[0004] A novel stator core, comprising a stator pressing ring, a stator lamination and a connecting rib, the stator pressing ring is provided with a rib groove, the connecting rib is welded at the rib groove, and a plurality of stator laminations are stacked.
[0005] Preferably, the novel stator core further comprises a double-headed bolt, the stator lamination is provided with a hole, the stator pressing ring is provided with a hole, the hole of the stator lamination and the hole of the stator pressing ring overlap, and the double-headed bolt is screwed into the holes of the stator lamination and the stator pressing ring for fastening.
[0006] At present, the outer circle of the stator core is large, and the stator lamination outer circle and the stator pressing ring outer circle are tightly pressed at the fastening point of the buckle connection. It is found that the stator inner circle tooth part has a large amount of tooth part springing, and the stator core does not meet the use requirements. The structure design of the utility model is to fasten the connecting rib installed at the stator pressing ring and the stator lamination tooth part groove close to the stator lamination inner circle, and fasten the stator pressing ring and the stator lamination close to the stator lamination outer circle. At this time, the stator inner circle tooth part has almost no tooth part springing, thus ensuring that the stator lamination with a large outer diameter is stacked into a stator core that meets the use requirements. BRIEF DESCRIPTION OF DRAWINGS
[0007] Figure 1 It is a schematic view of the novel stator core structure.
[0008] Figure 2 It is a one-angle schematic view of the novel stator core.
[0009] Figure 3 For a new type of stator core structure diagram of another perspective view;
[0010] In the figure: stator pressure ring 1, stator lamination 2, connecting rib 3, rib groove a, hole b, stud bolt c. DETAILED DESCRIPTION
[0011] In order to make the technical scheme of the utility model easier to understand, the technical scheme of the utility model is described clearly and completely by combining with the specific embodiment in the form of the accompanying drawings.
[0012] Please also refer to Figure 1 , Figure 2 and Figure 3 , the new type of stator core includes stator pressure ring 1, stator lamination 2 and connecting rib 3, rib groove a is set up on stator pressure ring 1, connecting rib 3 is welded at rib groove a, stator lamination 2 is stacked by stator pressure ring 1, and stator pressure ring 1 and connecting rib 3 are fixed by spot welding at the inner circle of stator lamination 2. A plurality of stator laminations 2 are stacked, the front end and the rear end are fixed by stator pressure ring 1, connecting rib 3 is welded with the inner circle of stator lamination 2 and stator pressure ring 1, and stator pressure ring 1 close to the outer circle of stator lamination 2 is fastened with stator lamination 2.
[0013] Stator lamination 2 and stator pressure ring 1 are punched at the outer circle, and the hole b is fastened by stud bolt c. The above two fastening methods can ensure that the stator core with large outer diameter is stacked to meet the use requirements.
[0014] The original stator core is a thin and short stator, only the outer circle and the stator pressure ring are spot welded and fastened at the buckle connection, and the pressing effect is achieved. Now the outer circle of the stator core is larger, and the buckle connection is spot welded and fastened at the pressing place of the outer circle of the stator lamination and the outer circle of the stator pressure ring, and it is found that the tooth part of the stator inner circle is opened larger, and the stator core does not meet the use requirements; the structure design of the utility model fastens the connecting rib 3 installed at the tooth part groove of the stator pressure ring 1 close to the inner circle of the stator lamination 2 and the stator lamination 2, and fastens the stator pressure ring 1 close to the outer circle of the stator lamination 2 by punching b and using stud bolt c, at this time, the tooth part of the stator inner circle hardly opens, so that the stator lamination with large outer diameter is stacked to meet the use of the stator core.
[0015] It should be noted that the embodiments described herein are only part of the embodiments of the present application, not all the implementation manners of the present application, the embodiments are only exemplary, and the role is only to provide a more intuitive and clear way to understand the content of the present application, and is not a limitation on the technical solutions of the present application. Without departing from the concept of the present application, all other embodiments that can be thought of by those skilled in the art without creative labor, and other simple replacements and various changes of the technical solutions of the present application, all belong to the protection scope of the present application.
Claims
1. A novel stator core characterized by: The novel stator core comprises a stator pressing ring, stator lamination and connecting rib, the stator pressing ring is provided with a rib groove, the connecting rib is welded at the rib groove, and a plurality of stator laminations are stacked, the front end and the rear end of the stacked stator laminations are fixed by the stator pressing ring, the connecting rib is welded with the inner circle of the stator lamination and the stator pressing ring, and the stator pressing ring close to the outer circle of the stator lamination is fastened with the stator lamination.
2. The novel stator core of claim 1, characterized by: The novel stator core further comprises a stud bolt, the stator lamination is provided with a hole, the stator pressing ring is provided with a hole, the hole of the stator lamination and the hole of the stator pressing ring are overlapped, and the stud bolt is screwed into the hole of the stator lamination and the hole of the stator pressing ring for fastening.