US-12620859-B2 - Motor stator structure

US12620859B2US 12620859 B2US12620859 B2US 12620859B2US-12620859-B2

Abstract

A motor stator structure includes a plural set of silicon steel laminations, a plurality of insulated supports including at least one wire clamping unit, and a plurality of windings. Each set of the silicon steel laminations is clamped on one of the insulated supports. The wire clamping unit includes at least one wire clamping member, which includes a slide guiding section and a retaining section. The windings are wound around the sets of silicon steel laminations and the insulated supports, and respectively include at least one lead-out wire extended to an outer side of the insulated supports. The outward extended lead-out wire can be moved from the slide guiding section into the retaining section and be firmly held thereto, so as to ensure the lead-out wire is quickly and precisely located at a predetermined position while being pulled tightly.

Inventors

Sung-wei Sun
Ming-Che Lee

Assignees

ASIA VITAL COMPONENTS CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20240607
Priority Date: 20240513

Claims (6)

1 . A motor stator structure comprising: a plural set of silicon steel laminations disposed on a plurality of insulated supports, and each of the insulated supports including a wire clamping unit having at least one wire clamping member provided with at least one slide guiding section and one retaining section; and a plurality of windings respectively having a winding section wound around the sets of silicon steel laminations and the insulated supports, and at least one lead-out wire located at a tail end of the winding section; and each of the lead-out wires being extended toward an outer side of the insulated support to pass through the slide guiding section of the wire clamping member into the retaining section and be firmly held in place in the retaining section.
2 . The motor stator structure as claimed in claim 1 , wherein the wire clamping unit further includes at least one cooperating member, to which the wire clamping member is mounted.
3 . The motor stator structure as claimed in claim 2 , wherein the cooperating member includes a radially outward opening and two radially spaced clamping ribs located in the opening; the wire clamping member being a U-shaped member disposed in the opening and including a clamped section clamped to between the two clamping ribs and two support arms extended parallelly from two ends of the clamped section in a radially outward direction.
4 . The motor stator structure as claimed in claim 3 , wherein the two support arms of the wire clamping member respectively have an upper end surface and a lower end surface; the slide guiding section being formed at the upper end surface, and the retaining section being located between the upper and the lower end surface.
5 . The motor stator structure as claimed in claim 4 , wherein the slide guiding section is a beveled surface and the retaining section is an elongated recess.
6 . The motor stator structure as claimed in claim 1 , wherein each of the insulated supports includes a first insulated support and a second insulated support; each set of the silicon steel laminations being clamped between the first and the second insulated support of one insulated support, and the wire clamping unit being provided on one of the first and the second insulated support.

Description

This application claims the priority benefit of Taiwan patent application number 113117610 filed on May 13, 2024, the disclosure of which is hereby incorporated by reference in its entirety. FIELD OF THE INVENTION The present invention relates to the field of motor stator, and more particularly, to a motor stator structure. BACKGROUND OF THE INVENTION The cooling fan for use in a super slim notebook computer is subjected to limited axial space, which results in difficulty in aligning it with the welding points for electrical terminals U, V, W, and COM on a motor circuit board. Presently, to complete the electrical connection of the cooling fan to the circuit board, enameled wires are pulled manually to align them with the welding points. This procedure is difficult and highly challenged and the operator requires good eyes and rich experience to handle it. The above welding procedure in conventional motor stator connection requires a relative long time because it could not be done on an automated mass-production line. A motor stator assembly, which, as shown in FIGS. 1A to 1D, includes a stator core 11 formed of silicon steel laminations, at least one coil winding 12 having at least one lead-out wire 121, a circuit board assembly 13, a plurality of metal posts 14, and a plurality of sleeves 15. The stator core 11 includes a plurality of poles 111 respectively having the coil winding 12 wound therearound. The metal posts 14 respectively include a first end surface and a second end surface; the first end surface is facing upward and the second end surface is fitly attached to the circuit board assembly 13. Each of the sleeves 15 partially encloses one of the metal posts 14 and is formed at a free end with a plurality of circumferentially spaced segments 151, such that a groove 152 is defined between any two adjacent segments 151. The lead-out wire 121 of the coil winding 12 is extended through at least two grooves 152 to straddle across the first end surface of the metal post 14. In the above prior art motor stator assembly, when the lead-out wire 121 of the coil winding 12 has been manually pulled to extend through at least two corresponding grooves 152, the lead-out wire 121 is further pulled outward to pass by one or two left or right segments 151 before being further extended through two opposing grooves 152. Thereafter, the lead-out wire 121 is pulled outward again to pass by one or two left or right segments 151 and extend through another two opposing grooves 152 before it is finally tied to the segment 151. Since the above lead-out wire connection includes complicate procedures and the operators are not all the same in their experience and skill, the lead-out wires 121 might be unevenly or differently wound or tied to cause broken or loosened lead-out wires 121. Further, since each of the lead-out wires 121 must be wound around and tied to the segments 151 on the metal post 15 multiple times, the whole lead-out wire connection consumes a lot of time and has low operational efficiency, and could not be processed through automated production. It is therefore tried by the inventor to develop an improved motor stator structure to overcome the problems in the conventional motor stator connection. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a motor stator structure capable of solving the above-mentioned problems in the prior art motor stators. To achieve the above and other objects, the motor stator structure of the present invention includes a plural set of silicon steel laminations and a plurality of windings. The silicon steel laminations are disposed on a plurality of insulated supports, and each of the insulated supports includes a wire clamping unit having at least one wire clamping member. The wire clamping member is provided with a slide guiding section and a retaining section. The windings respectively have a winding section wound around the silicon steel laminations and the insulated supports, and at least one lead-out wire located at a tail end of the winding section to extend toward an outer side of the insulated support. The lead-out wire can be moved from the slide guiding section of the wire clamping member into the retaining section and be firmly held in place in the retaining section. In the present invention, with the wire clamping unit provided on each of the insulated supports, the lead-out wires of the windings for connecting to a circuit board can be quickly and precisely set to predetermined positions while being pulled tightly to align with the positions on the circuit board for welding the lead-out wires thereto. Therefore, the disadvantages of connecting the lead-out wires manually as found in the prior art can be overcome, enabling automated wire connection of the motor stator. BRIEF DESCRIPTION OF THE DRAWINGS The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by r