JP4461569B2 - Rotating electric machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotating electrical machine in which a winding bobbin is fitted and connected to a two-part core composed of a tee core and a yoke core, and more particularly to a structure of a winding bobbin.
[0002]
[Prior art]
In the rotating electric machine having the above-described two-divided core, a winding bobbin having a winding is fitted on a tooth portion of a teascore, and the winding is connected to a printed board disposed at one end of the teascore. In addition, the tee score is inserted into a hollow yoke core integrally with the winding bobbin.
[0003]
[Problems to be solved by the invention]
Conventionally, such rotating electrical machines have the following problems.
(1) An appropriate gap for accommodating the connection terminal of the winding is required between the printed board arranged at one end of the teascore and the winding bobbin to which the winding is connected. Since the distance between the winding bobbin and the winding bobbin is unstable, it is difficult to ensure a certain gap.
(2) The winding bobbin fitted on the teeth part of the tee score is easily loosened, and the winding bobbin is displaced or dropped during connection, making it difficult to work.
(3) When the teascore with the winding bobbin fitted is inserted into the yoke core, the surface of the teeth portion of the teascore is obstructed by the winding bobbin and cannot be seen well, and it is difficult to align the core with the yoke core.
Accordingly, an object of the present invention is to cope with these problems and facilitate the assembly work of the motor core.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is configured such that the winding bobbin is crushed between the tooth portion and the wall surface of the hollow hole of the winding bobbin that fits with the tooth portion of the teeth core. The protrusions having a triangular cross section that are closely fitted to each other are integrally formed so as to increase in height from the inner diameter side toward the outer diameter side .
[0005]
Further, according to the present invention, a part of the outer peripheral surface of the end portion of the winding bobbin that is fitted into the yoke core is deleted, and the teeth portion of the tea core is exposed from the winding bobbin at the outer peripheral surface deletion portion of the winding bobbin. It shall be (claim 2).
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, based on FIGS. 1-5, embodiment of this invention in a permanent magnet motor is described. Here, FIG. 1 is a perspective view of a winding bobbin, FIG. 2 is a perspective view of a tee score and a winding bobbin fitted to the teeth portion, and FIG. 3 is a winding bobbin inserted, and the winding is on a printed board. FIG. 4 is a perspective view of a connected tee score, FIG. 4 is a perspective view of a yoke core and a tee score fitted therein, and FIG. 5 is a longitudinal sectional view of a winding bobbin. As shown in FIG. 1, a winding bobbin 1 made of an insulator has collars 1b and 1c before and after a hollow rectangular winding drum 1a, and the upper end of FIG. On the collar 1c, a printed board positioning projection 1d is integrally formed integrally with the thick portion. Further, the outer surface of the collar 1c is an arc surface having the same diameter as a later-described tea score except for the thick end portion, but at the end portion on the opposite side of the protrusion 1d, the portion 1e of the outer peripheral surface is thick. It is deleted and formed flat.
[0008]
In FIG. 2, a winding bobbin 1 is provided with a winding 2 on a winding drum 1a, and the winding bobbin 1 is fitted on a tooth portion 3a of a tee score 3 along an arrow. In a state where the winding bobbin 1 is fitted, the outer peripheral surface thereof and the outer peripheral surface of the tooth portion 3a are the same surface. Here, on the wall surface of the hollow hole of the winding bobbin 1 fitted to the teeth portion 3a of the tee score 3, as shown in FIG. 1 and FIG. The protrusion 1f is integrally formed so as to increase in height from the flange 1b side to the 1c side along the fitting direction of the winding bobbin 1. Therefore, when the winding bobbin 1 is fitted into the tooth portion 3a, the projecting portion 1f is crushed between the tooth portion 3a, and the winding bobbin 1 is tightly fitted to the tooth portion 3a and fixedly held.
[0009]
Next, as shown in FIG. 3, the winding 2 (FIG. 2) is connected to the printed board 4 disposed at one end of the tea score 3. The wiring work is performed by soldering the winding end to the printed board 4 with the printed board 4 floating from the winding bobbin 1, and setting the printed board 4 at a predetermined position. The plate 4 is positioned by contacting the tip of the projection 1d of the winding bobbin 1. Thereby, a fixed gap is formed between the winding bobbin 1 and the printed board 4, and the winding terminal folded in this gap is properly accommodated.
[0010]
The tee score 3 in the state of FIG. 3 that has been connected is then fitted into the hollow yoke core 5 along the direction of the arrow in FIG. The inner diameter of the hollow portion of the yoke core 5 is very close to the outer diameter of the tee score 3, and the gap is set to be small. Therefore, when inserting the tee score 3, it is necessary to accurately align the tip of the insertion side (the lower side in FIG. 4) with the yoke core 5. Therefore, in the case shown in the drawing, the part 1e of the outer peripheral surface of the fitting-side end of the winding bobbin 1 is removed flat, and the teeth 3a are exposed from this part. Thereby, the tip of the tea score 3 can be seen well when viewed from above, so that the center alignment can be easily performed. Further, the winding bobbin 1 is tightly fitted via the tee score 3 and the protrusion 1f and does not come out, so that the fitting operation to the yoke core 5 is easy.
[0011]
【The invention's effect】
As described above, according to the present invention, since there is no position shift or dropout due to loosening of the winding bobbin fitted on the tee score, subsequent wiring work and fitting work into the yoke core are facilitated. Since the gap between the printed board and the printed board is kept constant, the winding terminal can be housed stably, and the tip of the tee core can be exposed from the winding bobbin, making it easy to fit into the yoke core. Improvement of quality and quality.
[Brief description of the drawings]
FIG. 1 is a perspective view of a winding bobbin showing an embodiment of the present invention.
FIG. 2 is a perspective view showing a state in which the winding bobbin of FIG. 1 is fitted on a tee score.
3 is a perspective view of the tee score of FIG. 2 after the winding bobbin is fitted and connected to the printed board.
4 is a perspective view showing a state in which the tee score of FIG. 3 is fitted into a yoke core. FIG.
5 is a longitudinal sectional view of the winding bobbin of FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Winding bobbin 1d Protrusion 1e Flat part 1f Protrusion 2 Winding 3 Teascore 3a Teeth part 4 Printed board 5 York core

Claims (2)

A winding bobbin provided with a winding is fitted on a teeth portion of the tee score, the winding is connected to a printed board disposed at one end of the tee score, and the tee score is the winding bobbin. In a rotating electrical machine that is inserted into a hollow yoke core integrally with
Protrusions having a triangular cross section that are crushed between the teeth portions and wall surfaces of the hollow holes of the winding bobbins that fit into the teeth portions of the teeth cores, so that the winding bobbins are closely fitted to the teeth portions. Is formed integrally so as to increase in height from the inner diameter side toward the outer diameter side. A winding bobbin provided with a winding is fitted on a teeth portion of the tee score, the winding is connected to a printed board disposed at one end of the tee score, and the tee score is the winding bobbin. In a rotating electrical machine that is inserted into a hollow yoke core integrally with
A part of the outer peripheral surface of the end of the winding bobbin that is fitted into the yoke core is deleted, and the teeth portion of the tee score is exposed from the winding bobbin at the outer peripheral surface deletion portion of the winding bobbin. Rotating electric machine with its features.

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