JPH0412643A - Coil end supporter and stator for rotary electric machine equipped with it - Google Patents

Abstract

PURPOSE:To support an coil end compactly by integrally forming a support, which is formed in plate shape, a coupler, which has a terminal mounting part, a coil end skirt part, and an engaging part, which is engaged in the slot of a stator core. CONSTITUTION:The connection ends of coils 3 are coordinated in the specified length, and male terminals or female terminals are junctioned to these connection ends through soldering or pressure-bonding means, or the likes, and also the terminals are mounted and fixed in the terminal mounting part 9 of a coupler 8 via the through hole of a support 7. Next, the engaging part 14 of a holder 5 is inserted or set in the vacant slot 4a of a stator core 2, and further by a fastener 6 the coil end 3a is stored in a circular engaging recess 11 and besides it is fixed to the support 7. Then, by engaging a coupler, which corresponds to the coupler 8, the electric connection of the coil 3 is completed. By the above constitution, the termination of the coil 3 becomes extremely easy, and moreover the coil end 3a is supported surely, and furthermore it becomes neat in appearance.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention provides a stator core formed into a hollow cylindrical shape with a plurality of slots extending along the axial direction and spaced apart from each other in the circumferential direction on the inner circumferential surface of the stator core. This invention relates to a coil end support device for supporting a coil end in a stator for a rotating electrical machine, which is formed by winding a coil through two of these slots and between both ends of the stator core, and to a stator for a rotating electrical machine equipped with the coil end support device. It is.

[Conventional technology]

Conventionally, in stakes for rotating electric machines such as generators and electric motors, a nine-output cord is connected by soldering to the connection end of a coil wound in a slot, and this lead-out cord is covered with an insulating tube to connect the coil end. Usually, coil terminal processing means is used to bundle and fix the coils.

[Problem to be solved by the invention]

However, in the above-mentioned conventional coil end processing means, a large number of coil ends overlap and often intersect at both ends of the stator core.

Since the coil ends are generally in a floating state, there is a problem in that, although it is natural to connect the coil ends with the lead-out cord, the bundling work of the coil ends is extremely complicated and requires a lot of time and man-hours.

In addition, multiple lead cords are required, not only for supplying power to the coil but also for control and other purposes, which increases the space required for these cords and increases the appearance. There is a problem in that it often spoils the aesthetic appearance.

The present invention solves the problems existing in the above-mentioned prior art, and provides a coil end support device that can easily and efficiently process the ends of a coil and exhibits an excellent appearance, and a stator for a rotating electric machine equipped with the same. The purpose is to

[Means to solve the problem]

In order to achieve the above object, in the first invention, a coupler having a terminal attachment part is provided on the upper surface of a support part formed in a flat plate shape, and coil ends of a stator of a rotating electric machine can be accommodated at both ends of the support part. a skirt portion having a fitting recess formed therein, and a fitting portion formed on one edge of the intermediate portion of the support portion so as to be fitable in the slot of the stator core so as to be perpendicular to the surface of the support portion; The support portion, coupler, skirt portion, and fitting portion are integrally formed.

A technical method was adopted.

Further, in the second invention, a plurality of slots extending along the axial direction are provided at intervals in the circumferential direction on the inner circumferential surface of the stator core formed in a hollow cylindrical shape. A stator for a rotating electric machine including a coil wound between both ends of the stator core,
The fitting portion of the coil end support device according to claim (1) is fitted into the vacant slot of the stator core, and the coil end is secured to the skirt portion. A technical method was adopted.

[For production]

With the above configuration, it is possible to support a plurality of overlapping and/or intersecting coil ends in a compact manner.

〔Example〕

FIG. 1 is a perspective view of a main part showing an embodiment of the present invention, and FIG. 2 is an enlarged view of a main part in the direction of arrow A in FIG. 1. In FIG. 1 and FIG. 2, 1 is a stator; It is for a rotating electric machine a such as a generator or an electric motor, and is constructed by winding a coil 3 around a stator core 2 formed, for example, in the shape of a hollow cylinder. That is, a plurality of slots 4 extending along the axial direction of the stator core 2 are provided on the inner peripheral surface of the stator core 2.
They are spaced apart from each other in the circumferential direction, and the coil 3 is wound through two of these slots 4 and between both ends of the stator core 2. Next, 5 is a holder 1 made of, for example, an insulating synthetic resin material as described later;
The coil end 3a is fitted into the vacant slot 4a, and the coil end 3a is secured to the holder 5 via the fastener 6.

FIG. 3 is an enlarged perspective view showing the holder 5 in FIGS. 1 and 2. FIG. In FIG. 3, reference numeral 7 denotes a support portion 1, which is formed, for example, in the shape of a flat plate with a rectangular projection shape on a plane. A coupler 8 is formed into, for example, a rectangular parallelepiped shape, and is provided with a plurality of terminal mounting portions 9 into which male or female terminals are mounted.

It is provided to protrude from the upper surface of the support part 7. Incidentally, approximately in the center of the support portion 7 is a through hole (not shown) for connecting the connection end of the coil 3 shown in FIG. 1 with the male terminal or female terminal.
is provided so as to communicate with the terminal mounting portion 9. Reference numeral 10 denotes a skirt portion, which has a fitting recess 1 in an arcuate shape, for example, formed to accommodate the coil end 3a shown in FIGS. 1 and 2.
1 is provided, and is provided protrudingly at both ends (short side portions) of the support portion 7.

Note that a plurality of protrusions 12 are provided projecting from the inner surface of the arc-shaped fitting recess 11 at intervals. Reference numeral 13 denotes a locking portion, which is provided protruding from both ends (short side portions) of the upper surface of the support portion 7. Next 1
4 is a fitting part, and 2, for example T
protruding in the shape of a letter.

The fitting part 14 has a width narrower below the middle part so that only the lower end part 14a can be fitted into the slot 4a shown in FIGS. 1 and 2, and the lower end part of the fitting part 14 A plurality of protrusions 15 are protruded from the slot 4a to prevent it from being pulled out of the slot 4a due to a slight external tensile force when inserted into the slot 4a. Also, the fitting part 14
The length dimension and the protrusion dimension from the edge of the support part 7 correspond to the coil end 3a shown in FIG. 1 when the lower end portion 14a of the fitting part 14 is fitted into the slot 4a. and can be located on the opposite side of the stator core 2. Note that the support section 7. Coupler 8. Skirt part 10. The locking portion 13 and the fitting portion 14 are integrally formed by, for example, injection molding, and the holder 5 is formed.

With the above configuration, the procedure for processing the terminals of the coil 3 will be described with reference to FIGS. 1 to 3. First, the connecting ends (not shown) of the coil 3 are aligned to a predetermined length dimension, and these connecting ends are connected to male terminals or female terminals (
(none of which are shown) are joined by soldering or crimping means, etc., and the terminal is installed and fixed in the terminal mounting part 9 of the coupler 8 through the through hole (not shown) of the support part 7. Next, the fitting part 14 of the holder 5 is fitted or fitted into the vacant slot 4a of the stator core 2, and the coil end 3a is further accommodated and supported in the nine-arc fitting recess 11 by the fastener 6. Secure it to section 7. Thereafter, the electrical connection of the coil 3 is completed by fitting the coupler 8 with a corresponding coupler (not shown). With the above configuration, the end treatment of the coil 3 is extremely easy, the coil end 3a is securely held, and the appearance is neat and beautiful.

In the present embodiment, an example has been described in which the constituent parts constituting the holder, which is a coil end support device, are integrally formed by injection molding means.

It may also be formed by cast molding, compression molding or other molding methods.
Further, even if some or all of the constituent parts are formed individually and then integrated by using an adhesive side or the like, the same effect will be obtained. Further, the shape and dimensions of each component can be appropriately selected depending on the shape and dimensions of the stator for a rotating electric machine to which the present invention is applied, and it is of course not limited to those of the five embodiments.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main part showing an embodiment of the present invention, Fig. 2 is an enlarged view of the main part in the direction of arrow A in Fig. 1, and Fig. 3 is an enlarged perspective view showing the holder in Figs. 1 and 2. It is a diagram. 2: Stator core, 3: Coil, 3a: Coil end,
4.4a Nislot, 5: Holder, 7: Support part, 8: Coupler, 10 Niskirt part, 11: Fitting recess, 14: Fitting part.

Claims (2)

[Claims] (1) A coupler having a terminal mounting portion is provided on the upper surface of a support portion formed in a flat plate shape, and a skirt portion having a fitting recess formed to accommodate a coil end of a rotary electric machine stator is provided at both ends of the support portion; A fitting part formed to be able to fit into the slot of the stator core is provided on one edge of the intermediate part of the support part so as to be orthogonal to the surface of the support part, and the support part,
A coil end support device characterized by integrally forming a coupler, a skirt portion, and a fitting portion. (2) A plurality of slots extending along the axial direction are provided at intervals in the circumferential direction on the inner circumferential surface of the stator core formed in a hollow cylindrical shape, and the slots passing through two of these slots and at both ends of the stator core In a stator for a rotating electric machine having a coil wound around the stator core, the fitting part of the coil end support device according to claim (1) is fitted into the vacant slot of the stator core, and the coil end is fitted into the skirt part. A stator for a rotating electrical machine equipped with a coil end support device characterized by being tied down.