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CN-224233426-U - Miniature contact pin stator

CN224233426UCN 224233426 UCN224233426 UCN 224233426UCN-224233426-U

Abstract

The utility model discloses a miniature contact pin stator, and belongs to the technical field of motor manufacturing. The miniature contact pin stator comprises an encapsulated stator, stator windings and a wiring terminal, wherein the encapsulated stator comprises a stator core and a plastic framework, the plastic framework is formed in the stator core in an injection molding mode, a plurality of groups of stator windings are wound on the plastic framework along the circumferential direction of the plastic framework, the wiring terminal is inserted into the plastic framework and extends upwards along the Z axis, a wire outlet head of the stator windings is wound on the wiring terminal and is leveled upwards along the Z axis, so that the wire outlet head is arranged on one side of the wiring terminal in parallel, and the wire outlet head is connected with the wiring terminal in a welding mode. This miniature contact pin stator can guarantee binding post non-deformable damages for welding appearance is pleasing to the eye, and need not add scaling powder, need not carry out broken skin to the line head and handle, can guarantee the welding effect, also can guarantee the structural integrity of plastic skeleton after the welding simultaneously, and can not increase manufacturing cost.

Inventors

  • SUN QINGJIE
  • LI PING

Assignees

  • 苏州兆威驱动有限公司
  • 深圳市兆威机电股份有限公司

Dates

Publication Date
20260512
Application Date
20250425

Claims (10)

  1. 1. Miniature contact pin stator, its characterized in that includes: The encapsulated stator (1) comprises a stator core (11) and a plastic framework (12), wherein the plastic framework (12) is injection molded in the stator core (11); The stator winding (2), the plastic skeleton (12) is wound with a plurality of groups of stator windings (2) along the circumferential direction; Binding post (3), it peg graft in plastic skeleton (12), binding post (3) follow Z axial and upwards extend, the line head (21) of stator winding (2) are around locating binding post (3) and along Z axial upper leveling setting, so that line head (21) are parallel to be arranged in one side of binding post (3), line head (21) with binding post (3) welded connection.
  2. 2. A miniature pin stator according to claim 1, characterized in that the outlet head (21) is in contact engagement with the terminal (3).
  3. 3. A micro-pin stator according to claim 2, characterized in that the welding time between the outlet head (21) and the connection terminal (3) is not more than two seconds.
  4. 4. A miniature pin stator according to claim 1, characterized in that the length of the outlet head (21) parallel to the terminal (3) is not less than 50% of the length of the terminal (3) extending in the Z-axis direction beyond the plastic skeleton (12).
  5. 5. A miniature pin stator according to claim 4, characterized in that the number of turns of the wire outlet head (21) around the connection terminal (3) is one or two.
  6. 6. A micro-pin stator according to any of claims 1-5, characterized in that the first section (211) of the top end of the outlet head (21) is arranged flush with the second section (31) of the top end of the connection terminal (3).
  7. 7. The micro-pin stator according to claim 6, wherein the first section (211) is perpendicular to the central axis of the connection terminal (3), and the first section (211) is not covered with enameled wire, and the first section (211) is used for welding a tin-plated cut-in point.
  8. 8. A micro-pin stator according to any of claims 1-5, characterized in that the welding temperature between the outlet head (21) and the connection terminal (3) is matched to the outer diameter of the stator core (11) and the diameter of the outlet head (21).
  9. 9. The micro-pin stator according to any one of claims 1-5, wherein the plastic skeleton (12) is made of a material that is less than a predetermined temperature resistance.
  10. 10. A micro-pin stator according to any of claims 1-5, characterized in that between the wire outlet head (21) and the connection terminal (3) there is a fluxless wave soldering or dip soldering or solder soldering.

Description

Miniature contact pin stator Technical Field The utility model relates to the technical field of motor manufacturing, in particular to a miniature contact pin stator. Background In the manufacturing process of the miniature pin stator with the outer diameter smaller than 36mm, the height of the plastic framework in the miniature pin stator is lower, so that the structural strength of the whole plastic framework is not high, the insertion depth of the wiring terminal in the plastic framework is shallower, the welding between the wire outlet head of the stator winding in the miniature pin stator and the wiring terminal is difficult, the welding efficiency is lower, the wiring terminal is easy to become fragile or melt due to long-time welding high temperature due to longer welding time, the wiring terminal is deformed and damaged, meanwhile, the plastic framework is molten due to long-time welding high temperature, the welding appearance is not attractive, the welding effect is poor, and the rejection rate of the miniature pin stator is high. In order to solve the problems, soldering flux is usually added when soldering the wire outlet and the wire terminal, but the soldering effect is also not ideal, if a plastic framework made of a higher temperature-resistant material is adopted, difficulties can be brought when the plastic framework is injection molded, and the production cost of the micro-pin stator is increased. Therefore, a need exists for a micro-pin stator that addresses the above issues. Disclosure of utility model The utility model aims to provide a miniature contact pin stator which can ensure that a wiring terminal is not deformed and damaged, so that the welding appearance is attractive, no soldering flux is required to be added, the skin breaking treatment on a wire outlet head is not required, the welding effect can be ensured, the structural integrity of a plastic framework after welding can be ensured, and the production cost is not increased. To achieve the purpose, the utility model adopts the following technical scheme: A miniature pin stator comprising: The encapsulated stator comprises a stator core and a plastic framework, wherein the plastic framework is injection molded in the stator core; The plastic framework is wound with a plurality of groups of stator windings along the circumferential direction of the plastic framework; The wire connecting terminal is inserted into the plastic framework, the wire connecting terminal extends upwards along the Z axis, and the wire outlet head of the stator winding is wound on the wire connecting terminal and leveled upwards along the Z axis, so that the wire outlet head is arranged on one side of the wire connecting terminal in parallel, and the wire outlet head is connected with the wire connecting terminal in a welding mode. Alternatively, the outlet head is contacted and attached with the wiring terminal. Alternatively, the welding time between the wire outlet head and the wire connecting terminal is not more than two seconds. Alternatively, the length of the wire outlet head parallel to the wire connecting terminal is not less than 50% of the length of the wire connecting terminal extending upwards from the plastic framework along the Z-axis. As an alternative, the coil-out head is wound on the wiring terminal in one or two turns. Alternatively, the first section of the top end of the wire outlet head is arranged at the same height as the second section of the top end of the wire connecting terminal. Alternatively, the first section is perpendicular to the central axis of the connecting terminal, the enameled wire is not wrapped by the first section, and the first section is used for welding a tin-plating cut-in point. Alternatively, the welding temperature between the wire outlet head and the connecting terminal is matched with the outer diameter of the stator core and the diameter of the wire outlet head. Alternatively, the plastic skeleton is made of a material smaller than a preset temperature resistance temperature. As an alternative, wave soldering or dip soldering or soldering without soldering flux is adopted between the wire outlet head and the wiring terminal. The beneficial effects of the utility model are as follows: According to the miniature pin stator, the plastic framework is formed in the stator core in an injection molding way, and the plurality of groups of stator windings are wound on the plastic framework along the circumferential direction of the plastic framework, so that the wire outlet heads of the stator windings are wound on the wiring terminals and are leveled and arranged along the Z axis, and the wire outlet heads are arranged on one side of the wiring terminals in parallel, namely, the parallel leveling layout of the wire outlet heads and the wiring terminals is ensured, the quick welding connection of the wire outlet heads and the wiring terminals is facilitated, the welding between the wire outlet heads and th