JPH0533669U - Winding binder for electric motors - Google Patents

Abstract

(57) [Summary] [Object] The present invention aims to provide a winding tie for an electric motor, which simplifies the work of binding a bundle of windings, improves workability, and easily secures an insulation distance. .. According to an embodiment of the present invention, there is provided a winding binder for a conductive machine, an insulating portion 7 having a substantially circular shape, and a connecting portion 7 formed under the insulating portion 7.
b, an edge portion 8 formed entirely or partially around the upper portion of the insulating portion 7, a winding bundle holding portion 9 extending from the other end of the edge portion 8, and the winding bundle holding portion 9 A winding guide portion 11 that is bent or extended toward the insulating portion 7 side, and a fixing portion that engages with the engagement portion that is formed upright at the end of the winding guide portion 11. The hook 12 is provided.
Note that the insulating portion 7 and the winding bundle holding portion 9 are provided with cutout grooves 7a and 10 for radiating heat of the winding as needed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winding binder for an electric motor, which can efficiently bind a winding wire composed of many coils of the electric motor.

[0002]

[Prior Art]

 In recent years, the binding work of the winding wire at the time of the winding work of the electric motor is often done by binding yarn, and further, the insulation distance between each component is secured through an insulating ring. ing.

A conventional winding method for a motor will be described below. 4 is a perspective view of a main part showing a winding state on a stator, FIG. 5 is a cross-sectional view of a main part showing a winding state when the winding diameter is small, and FIG. 6 is a perspective view of a winding ring. Is. In FIG. 4, 1 is a status core, 2 is a winding bundle around which a coil is wound, and 3 is a bind yarn that binds the winding bundle 2 to prevent the winding from becoming uneven and sagging. Reference numeral 4 is a housing portion that holds the winding portion, and 5 is an insulating ring that surrounds the winding bundle.

If the wire diameter of the winding wire is large, automation is difficult, so the winding wires are manually bound and bound with the bind yarn 3 while preventing the occurrence of the uneven lines and the sagging lines. If the winding diameter is small, winding breakage lines and sagging lines are likely to occur, so while using the insulating ring 5 etc., while maintaining the insulation distance 6 between the housing 4 and the stator core 1, the sagging lines, etc. can be corrected. It is carried out.

[0005]

[Problems to be solved by the device]

 However, in the above-described conventional configuration, when binding the winding bundle, the work is complicated and requires a lot of man-hours, and it is difficult to secure the insulation distance while preventing the generation of the break lines and the sagging lines, which requires a great deal of labor. It had a problem of poor productivity.

The present invention solves the above-mentioned conventional problems, and provides a winding binding tool for an electric motor that simplifies the work of binding the winding bundle to improve workability and that can easily secure the insulation distance. The purpose is to provide.

[0007]

[Means for Solving the Problems]

 In order to achieve this object, the winding tie for an electric motor of the present invention comprises a substantially cylindrical insulating part, an engaging part formed in the lower part of the insulating part, and an entire circumference or a partial upper part of the insulating part. An edge portion formed on the wire, a winding bundle holding portion extending from the other end of the edge portion, and a winding formed by bending or extending from the winding bundle holding portion to the insulating portion side. The wire guide portion and a fixing hook that is provided upright at the end of the winding guide portion and that engages with the engaging portion are provided. In addition, it is preferable from a safety point of view that a cutout groove for radiating heat of the winding is formed in the insulating portion and the winding bundle holding portion as needed.

[0008]

[Action]

 With this configuration, the winding bundle is clamped by the winding bundle holding portion, inserted into the stator core, shaped, the winding guide is closed, and the fixing hook and the engaging portion are engaged, so that the winding bundle can be easily mounted. You can Further, since the winding bundle is sandwiched between the inside diameter side, the outside diameter side and each slot by the winding bundle holding portion and the winding guide, it is possible to prevent the occurrence of winding dislocation lines and sagging lines. it can.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a front perspective view of a winding binder for an electric motor according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line XX of FIG. Reference numeral 7 is a substantially cylindrical insulating portion made of synthetic resin, 7a is a heat-dissipating notch formed in a lower portion from a substantially central portion of the insulating portion 7, and 7b is substantially in a straight line inside the lower portion of the circumference of the insulating portion 7. The formed brim-shaped engaging portion, 8 is an edge portion formed outward from one end of the insulating portion 7, and 9 is a hinge function that is thinly extended in the circumferential direction from the other end portion of the edge portion. There is a winding bundle holding portion, 10 is a heat radiation window cut out from the end of the edge portion 8 to the vicinity of the lower portion of the winding bundle holding portion 9 for heat radiation of the wiring bundle, and 11 is an insulation between the stator core and the wiring. A winding guide continuous from the other end of the winding bundle holding part 9 is provided, and 12 is formed on the whole or part of the other end of the winding guide 11 and engages with an engaging part 7b of the insulating part 7. It is a hook for fixing the wire bundle.

The operation of the wire tying member for an electric motor according to the present embodiment configured as described above will be described below with reference to FIG. FIG. 3 is a cross-sectional view of essential parts in a state where the wire tie for an electric motor is mounted on the stator core. A coil is wound along the insulating portion 7 and the edge portion 8 to form a winding bundle 2, and then a winding bundle holding portion 9 having a thin wall and having a hinge effect is wound along the winding bundle 2 to disperse the winding. Wires and sags are prevented and the lower part of the wire guide 11 is held by the winding guide 11 while the fixing hooks 12 at the ends of the winding guide 11 are engaged with the engaging portions 7b at the bottom of the insulating portion 7. The winding can be firmly held against the impact from the coil and the occurrence of the loose wire and the sagging wire of the winding can be suppressed. Next, the motor winding bundle binding tool is attached to the stator core 1.

[0011]

[Effect of the device]

 As described above, in the electric motor winding binding device of the present invention, the insulating portion, the winding bundle holding portion, and the winding guide are integrally formed, and the winding hook is held by the engagement of the fixing hooks. Since it is possible to ensure the binding of the winding bundle without causing the loose or sagging wire when winding, it is possible to significantly improve the manufacturing workability of the winding bundle, and also to provide high quality and excellent durability. It is possible to provide an excellent electric motor winding binding tool that is suitable for mass production at low cost.

[Brief description of drawings]

FIG. 1 is a front perspective view of a winding binder for an electric motor according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part taken along line XX of FIG.

FIG. 3 is a cross-sectional view of an essential part of a winding binding device for an electric motor according to an embodiment of the present invention in a mounted state.

FIG. 4 is a perspective view of a main part showing a winding state of a conventional stator.

FIG. 5 is a cross-sectional view of a main part showing a winding state when a conventional winding diameter is small.

FIG. 6 is a perspective view of a conventional winding ring.

[Explanation of symbols]

 1 Stator Core 2 Winding Bundle 3 Bind Thread 4 Housing Part 5 Insulating Ring 6 Insulation Distance 7 Insulating Part 7a Heat Dissipation Notch Groove 7b Engagement Part 8 Edge 9 Winding Bundle Holding Part 10 Heat Dissipation Window 11 Winding Guide 12 Fixing Hook 13 Sealing resin

Claims (1)

[Scope of utility model registration request] 1. A substantially cylindrical insulating portion, an engaging portion formed in the lower portion of the insulating portion, an edge portion formed entirely or partially around the upper portion of the insulating portion, and other edge portions. A winding bundle holding portion extending from an end, a winding guide portion formed by bending or extending from the winding bundle holding portion to the insulating portion side, and an upright portion at an end portion of the winding guide portion. A winding binder for an electric motor, comprising: a hook for fixing that engages with the formed engaging portion.