JP2004069588A - Winding method for rotation detector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce stress to a coil and a winding time by carrying out coil cutting in only two parts during a winding process and cutting a connecting wire for a terminal in the following process. <P>SOLUTION: In this winding method for the rotation detector, at least one connecting wire 30 for a terminal connecting respective terminal pins 6b-6e one another is formed. A winding starting coil 10 and a winding ending coil 11 are cut in the winding process, and other parts are cut in the following process. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a winding method of a rotation detector, and in particular, compared to a conventional winding method of cutting a stator coil for each terminal by cutting only a winding start coil and a winding end coil during a winding process. The present invention relates to a novel improvement for shortening a winding time, reducing a stress at the time of cutting, and eliminating a limitation of a shape of a terminal pin.
[0002]
[Prior art]
Conventionally, a method shown in FIG. 6 has been adopted as a winding method of this kind of rotation detector used.
That is, in FIG. 6, reference numeral 7 denotes a terminal pin holding portion provided with a plurality of terminal pins 6a, 6b, 6c, 6d, 6e, 6f, and a pair of terminal pins 6a and 6b, 6c and 6d, 6e and 6f. The winding start coil 10 and the winding end coil 11 of the three-phase stator coils 5a, 5b, 5c wound around the respective magnetic poles are connected therebetween.
The above-described winding start coil 10 and winding end coil 11 were cut from the cutting portion 12 in a state where the winding on the terminal pins 6a to 6f was completed.
[0003]
[Problems to be solved by the invention]
Since the conventional winding method of the rotation detector is configured as described above, there are the following problems.
That is, each time the stator coil for each phase is wound around the magnetic pole, the winding start coil and the winding end coil must be cut, which has been a major obstacle to improving the production efficiency in the winding process.
When cutting the winding start coil and the winding end coil, instead of using a cutter, each of the terminal pins 6a to 6e is made a non-cylindrical column such as a square pole, and the coil is pulled around the terminal pin by pulling during the ganging operation. Since the cutting was performed by abutting the face corners, a stress at the time of pulling was applied to the stator coil, and the stator coil was sometimes cut off.
Further, in the case of cutting by the above-described pulling, it is necessary to make the peripheral surface of the terminal pin non-cylindrical so that the corners remain, which increases the processing cost of the terminal pin.
[0004]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. In particular, a conventional winding method for cutting a stator coil for each terminal by cutting only a winding start coil and a winding end coil during winding. An object of the present invention is to provide a winding method of a rotation detector in which the winding time is reduced, the stress at the time of cutting is reduced, and the shape of the terminal pin is eliminated as compared with the wire method.
[0005]
[Means for Solving the Problems]
A winding method for a rotation detector according to the present invention includes a stator body having a plurality of magnetic poles having an overall shape that is annular and protruding inward, and winding the respective magnetic poles through first and second ring-shaped insulating covers. A stator coil attached thereto, and a terminal pin holding portion having a plurality of terminal pins formed integrally with any one of the ring-shaped insulating covers and protruding outward along a radial direction of the stator body, In a winding method of a rotation detector, wherein the stator coil wound around the magnetic pole by an automatic winding machine is wound around and connected to each terminal pin, the stator coil wound around each magnetic pole and each terminal The stator coil wound around the pin is formed of one continuous coil, forms at least one terminal connecting wire connecting the terminal pins, and is connected to the first terminal pin of the terminal pins. A winding step of cutting a winding end coil of the stator coil with respect to a winding start coil and a last terminal pin of the data coil, and the terminal connecting wire is cut in a next step after the winding step is completed. The terminal pins are composed of six pins, the terminal connecting wires are formed at two places, and the terminal pins are composed of five pins. Is a method in which the end-of-winding coil is connected to a second terminal adjacent to the first terminal pin, and a connector or a lead wire is connected to the terminal pin holding portion. .
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a winding method for a rotation detector according to the present invention will be described with reference to the drawings. The same or equivalent parts as those in the conventional example will be described with the same reference numerals. In FIG. 1, reference numeral 1 denotes a ring-shaped stator body having magnetic poles 2 protruding inward at predetermined angular intervals. On both surfaces of the stator body 1, each of the magnetic poles 2 is formed in a ring shape. First and second annular insulating covers 3 and 4 having a shape protruding so as to cover are provided.
Each of the ring-shaped insulating covers 3 and 4 may be formed separately or may be formed integrally by injection molding.
[0007]
A stator coil 5 is wound around each of the magnetic poles 2 via the respective annular insulating covers 3 and 4, and the stator coil 5 is formed integrally with any of the respective annular insulating covers 3 and 4. The terminal pins 6a to 6f (six terminal pin configurations) of the terminal pin holding portion 7 projecting outward in the radial direction of the stator body 1 are wrapped (wrapped) and connected.
When the stator coil 5 is wound around each of the magnetic poles 2, the crossover 5 </ b> A extending between the magnetic poles 2 is guided through the back side of the crossover guide protrusion 200 formed integrally with the second annular insulating cover 4. .
[0008]
The stator coil 5 is wound for each phase. As shown in FIG. 2, each of the stator coils 5a, 5b, and 5c wound around three magnetic poles 2 has six terminal pins 6a to 6f. Each of the windings is connected from the start winding coil 10 to the end winding coil 11 by a known one-stroke winding method, and one stator coil 5 is continuously used.
[0009]
In the case of six terminal pins shown in FIG. 2, the winding start coil 10 is wound around the first terminal pin 6a, a stator coil 5a is formed on the magnetic pole 2, and a terminal connecting wire is provided between the terminal pins 6b and 6c. 30, a stator coil 5b wound around the magnetic pole 2 is formed between the terminal pins 6c and 6d, a terminal connecting wire 40 is formed between the terminal pins 6d and 6e, and the terminal pin 6e and the last terminal pin 6f are formed. A stator coil 5c wound around the magnetic pole 2 is formed therebetween, and the winding end coil 11 is drawn out from the last terminal pin 6f, whereby the winding around each magnetic pole 2 and the terminal pins 6a to 6f is drawn in one stroke. It is formed continuously by one stator coil 5 in series connection by winding.
[0010]
In the above-described series of winding steps from the winding start coil 10 to the winding end coil 11, the winding start coil 10 is cut by pulling a needle (not shown) of the automatic winding machine, and the winding end coil is further cut. 11 has been cut. That is, in the winding step, the winding step can be completed only by forming two cut portions 12.
[0011]
In the next next step after the above-described winding step, the terminal connecting wires 30 and 40 are cut 50 by cutting means (not shown), so that the stator coils 5a, 5b, 5c are independent configurations as in the conventional configuration of FIG.
[0012]
In the winding step described above, the stator coil 5 is actually applied to each of the terminal pins 6a to 6e as shown in an enlarged perspective view of FIG. 5 (where five terminal pins have the same configuration as in FIG. 3). Winding is performed.
[0013]
When the stator coil 5 is wound around the five terminal pins 6a to 6e as described above, the stator coils 5a, 5b, and 5c are formed between the terminal pins 6a and 6b, 6c and 6d, and 6d and 6e, Terminal connecting wires 30 are formed only between the terminal pins 6b and 6c.
Therefore, after the above-described winding step, the terminal connecting wire 30 is cut 50 in the next step.
The same parts as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.
[0014]
As shown in FIG. 4, when the number of terminal pins is four, stator coils 5a, 5b, and 5c are formed between terminal pins 6a and 6b, between 6b and 6c, and between 6d and 6b, A terminal connecting wire 30 is formed, and the winding end coil 11 is connected to the terminal pin 6b.
The same parts as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted. 1 and 5, the connector is directly connected to the terminal pin holding portion 7, but a lead wire (not shown) is connected to each of the terminal pins 6a to 6f without using the connector. It can also be configured as follows.
[0015]
【The invention's effect】
Since the winding method of the rotation detector according to the present invention is configured as described above, the following effects can be obtained.
That is, instead of cutting each time a stator coil is wound around each terminal pin as in the conventional case, only two cuts are required in the winding step, so that the winding time can be greatly reduced.
Further, since the number of cuts of the stator coil is reduced, the frequency of stress due to the cut is reduced, and the reliability is improved.
In addition, although the shape of the terminal pin has been conventionally limited for cutting by pulling, winding can be performed even if the shape of the terminal pin is not limited, and the cost of processing the terminal pin can be reduced.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a stator showing a winding method of a rotation detector according to the present invention.
FIG. 2 is a configuration diagram showing a winding method for six terminal pins according to the present invention;
FIG. 3 is a configuration diagram showing another embodiment of FIG. 2;
FIG. 4 is a configuration diagram showing another embodiment of FIG. 2;
FIG. 5 is an enlarged perspective view of a main part showing a winding state using five terminal pins according to the present invention.
FIG. 6 is a configuration diagram showing a winding method in a conventional six-terminal pin configuration.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Stator body 2 Magnetic pole 3, 4 First and second annular insulating covers 5, 5a to 5c Stator coils 6a to 6f Terminal pin 10 Winding start coil 30, 40 Terminal crossover

Claims (6)

A stator body (1) having a plurality of magnetic poles (2) projecting inward and having an annular shape as a whole, and a first and a second annular insulating cover (3, 4) on each of the magnetic poles (2); And the stator coil (5, 5a to 5c) wound therewith and one of the ring-shaped insulating covers (3, 4), and are formed integrally and protruded outward along the radial direction of the stator body (1). And a terminal pin holding portion (7) having a plurality of terminal pins (6a to 6f), the stator coil (5, 5a to 5c) wound around the magnetic pole (2) by an automatic winding machine. In a winding method of a rotation detector wound around and connected to each of the terminal pins (6a to 6f), a stator coil (5, 5a to 5c) wound around each of the magnetic poles (2) and each of the terminals are provided. Stator coils (5, 5a to 5) wound around pins (6a to 6f) ) Is formed of one continuous wire, forms at least one terminal connecting wire (30) connecting between the terminal pins (6b to 6e), and forms one of the terminal pins (6a to 6f). A rotation detecting step of cutting a winding start coil (10) of the stator coil with respect to the first terminal pin (6a) and a winding end coil (11) with respect to the last terminal pin (6f). Vessel winding method. The winding method for a rotation detector according to claim 1, wherein the terminal connecting wire (30) is cut in a next process after the completion of the winding process. The winding method for a rotation detector according to claim 1, wherein the terminal pins (6a to 6f) include six pins, and the terminal connecting wires (30, 40) are formed at two places. 3. The winding method for a rotation detector according to claim 1, wherein the terminal pins (6a to 6e) include five pins. The said terminal pin (6a-6d) consists of four pieces, The said end winding coil (11) is connected to the 2nd terminal (6b) adjacent to the said 1st terminal pin (6a), The characterized by the above-mentioned. 3. The method for winding a rotation detector according to claim 1 or 2. The winding method for a rotation detector according to any one of claims 1 to 5, wherein a connector or a lead wire is connected to the terminal pin holding section (7).

Images