Starter rotor with sealing rivet structure
By setting a limiting edge and sealing structure on both sides of the rotor groove of the starter, the problem of loose throwing of the copper wire winding is solved, and the reliable fixation of the copper wire is achieved, and the reliability of the starter is improved.
Patent Information
- Application Number
- CN202422284574.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The copper wire windings of existing starter rotors are easily loosened and thrown out of grooves when rotating at high speed, resulting in wear and damage, affecting the normal use of the starter.
A groove with a circumferentially distributed circumferential groove is provided on the outer wall of the silicon steel sheet, and a limiting edge and a seal are provided on both sides of the groove. The seal is bent inward and rivets are approached to the limiting edge, sealing the copper wire, increasing its fixity in the groove, and an insulating sheet is provided in the groove to enhance positioning.
Effectively prevent the copper wire from breaking away from the core when rotating at high speed, improving the structural reliability and stability of the starter rotor.
Smart Images
Figure CN223194492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a component in an automobile starter, in particular to a starter rotor with a sealing riveting structure. Background Art
[0002] The rotor structure of the starter includes an iron core and a copper wire winding. The copper wire winding is mainly composed of copper wire. The copper wire passes through the grooves evenly distributed on the circumference of the iron core wall. These grooves are set along the radial direction of the rotor. The copper wire on the copper wire winding passes through the grooves. These copper wires are wound in the grooves by a machine. Sometimes the copper wires in the machine will become loose, causing the rotor to rotate at high speed, and the copper wires in the grooves will be thrown out of the grooves by centrifugal force. This will cause the copper wires to wear or even be damaged, causing damage to the motor and the starter to fail to work normally. Utility Model Content
[0003] In order to solve the above problems, the purpose of the present utility model is to provide a starter rotor with a sealing riveted structure, which can confine the copper wire in the groove to prevent it from escaping from the iron core and improve the reliability of the structure.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a starter rotor with a sealing riveted structure, comprising an iron core and a copper wire winding, the iron core being formed by stacking a number of silicon steel sheets, and grooves uniformly distributed around the circumference being provided on the outer wall of the silicon steel sheet, through which the copper wire of the copper wire winding passes, the groove being arranged along the radial direction of the silicon steel sheet, a limiting rib protruding toward the inner side of the groove being provided on one side of the opening of the groove, and a sealing strip protruding on the other side of the opening of the groove, after the sealing strip is bent into the groove opening and riveted, the end of the sealing strip is close to the limiting rib.
[0005] After the seal is bent and riveted into the groove opening, the distance between the end of the seal and the limiting edge is smaller than the diameter of the copper wire.
[0006] An insulating sheet is also provided in the groove, and the insulating sheet wraps the copper wire.
[0007] The beneficial effect of the utility model is that after the seal is bent into the groove opening and riveted, the end of the seal is close to the limit retaining edge, thereby sealing and riveting the copper wire passing through the groove in the groove, preventing it from falling off the iron core, and improving the reliability of the structure.
[0008] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural diagram of a specific embodiment of the utility model;
[0010] Figure 2This is a cross-sectional view of the rotor before riveting in a specific embodiment of the present invention;
[0011] Figure 3 This is a cross-sectional view of the rotor after riveting in a specific embodiment of the present invention. DETAILED DESCRIPTION
[0012] The present invention is described in detail below through examples, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.
[0013] like Figure 1 — Figure 3 As shown, this embodiment discloses a starter rotor with a sealing riveting structure, including a rotating shaft 6, an iron core 1 and a copper wire winding 2. The iron core 1 is formed by stacking several silicon steel sheets 3. The rotating shaft 6 is inserted into the iron core 1. Grooves 31 are uniformly distributed on the outer wall of the silicon steel sheet 3. The copper wire of the copper wire winding 2 passes through the groove 31. The groove 31 is arranged along the radial direction of the silicon steel sheet 3. A limiting rib 4 protruding toward the inner side of the groove 31 is provided on one side of the opening of the groove 31. A sealing strip 5 is protruded on the other side of the opening of the groove 31. After the sealing strip 5 is bent into the opening of the groove 31 and riveted, the end of the sealing strip 5 is close to the limiting rib 4, thereby forming a sealing riveting structure.
[0014] After the seal 5 is bent and riveted into the opening of the groove 31, the distance between the end of the seal 5 and the limiting rib 4 is less than the diameter of the copper wire. This prevents the copper wire in the groove 31 from being thrown out during high-speed operation of the rotor, thereby improving the reliability of the structure.
[0015] The sealing strip 5 and the limiting rib 4 are formed together when the silicon steel sheet is stamped.
[0016] An insulating sheet is also provided in the groove 31 to wrap around the copper wire. The placement of the insulating sheet not only insulates the copper wire from the silicon steel sheet 3 but also compresses the space between the copper wire and the groove 31, making the positioning of the copper wire more reliable.
[0017] By adopting the above technical solution, after the seal 5 is bent and riveted into the opening of the groove 31, the end of the seal 5 is close to the limiting edge 4, thereby sealing and riveting the copper wire passing through the groove 31 in the groove 31, preventing it from detaching from the iron core 1, and improving the reliability of the structure.
[0018] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.
[0019] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A starter rotor with a sealed riveted structure, comprising an iron core and a copper winding, wherein the iron core is formed by stacking a plurality of silicon steel sheets, and the outer walls of the silicon steel sheets are provided with grooves uniformly distributed around the circumference, through which the copper wires of the copper winding pass, characterized in that: The groove is arranged along the radial direction of the silicon steel sheet, and a limiting rib protruding toward the inner side of the groove is provided on one side of the opening of the groove, and a sealing strip is provided on the other side of the opening of the groove. After the sealing strip is bent and riveted into the opening of the groove, the end of the sealing strip is close to the limiting rib.
2. The starter rotor with a sealing riveted structure according to claim 1, characterized in that: After the seal is bent and riveted into the groove opening, the distance between the end of the seal and the limiting edge is smaller than the diameter of the copper wire.
3. The starter rotor with a sealing riveted structure according to claim 1, characterized in that: An insulating sheet is also provided in the groove, and the insulating sheet wraps the copper wire.