JP2016054589A - Resolver stator winding structure and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a slack part in an end wire of a stator wiring tied up with a terminal pin without using a conventional slack pin, a wall-shaped member and the like.SOLUTION: A resolver stator winding structure and method is a configuration and method for forming a slack part (12aB) in an end wire (12aA) by tying up a terminal pin (3) with the end wire (12aA) of a stator winding (12a) in a state where an L-shaped bent part (3A) of the terminal pin (3) provided in a terminal pin holding part (2) of an annular stator (11) is made to have an acute angle, and after that, by making an angle (θ) of the L-shaped bent part (3A) equal to or more than the acute angle.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a winding structure and a method for a resolver stator, and more particularly, to form a slack portion on an end line of a stator winding that hangs on a terminal pin without using a conventional slack pin and wall-like member. Regarding new improvements.

As a winding structure and method of this type of resolver stator that has been conventionally used, for example, the configuration disclosed in Patent Document 1 can be shown in FIG.
That is, what is indicated by reference numeral 1 in FIG. 5 is an insulating cover member provided integrally or separately on both surfaces of a well-known ring-shaped stator (not shown), and from a part of the insulating cover member 1 in the radial direction. A terminal pin holding portion 2 that integrally protrudes along is formed.

A plurality of terminal pins 3 are formed upright on the outer edge 2a of the terminal pin holding portion 2, and a well-known projecting magnetic pole (not shown) projecting inwardly at a predetermined angular interval on the inner peripheral surface of the annular stator. A plurality of are formed.
A protruding portion of the insulating cover 1 is covered on the peripheral surface of each protruding magnetic pole, and a well-known stator winding (not shown) is wound around each protruding magnetic pole via the insulating cover member 1. .

  The remaining end wires 4 wound around the projecting magnetic poles of the stator winding are tangled to the terminal pins 3, and the terminal pins 3 on the terminal pin holding portion 2 and the projecting magnetic poles are connected to each other. A plurality of pin insertion holes 6 for penetrating the slack pins 5 corresponding to the terminal pins 3 are formed at the positions therebetween.

  In the above-described configuration, when the stator winding is wound around the projecting magnetic poles of the ring-shaped stator of the resolver via the insulating cover member 1, as shown in FIG. Each slack pin 5 is passed through each pin insertion hole 6, and each slack pin 5 is protruded above each pin insertion hole 6.

  In the above-described configuration, the end line 4 of the stator winding wound around each protruding magnetic pole is bent by contacting each slack pin 5 and then being tangled to each terminal pin 3.

If the conventional configuration of FIG. 5 is shown in cross section, it is configured as shown in FIG.
In FIG. 4, the stator winding 12 wound around the projecting magnetic pole 12 of the annular stator 11 via the insulating cover member 1 is located in a slot (not shown) between the projecting magnetic poles 12.
Inside the annular stator 11, a known VR type rotor 13 is rotatably provided via a rotatable 4.

4 and 5, the end line 4 of the stator winding 12 wound around the projecting magnetic pole 12 passes through the outer periphery of the slack pin 5 inserted in the pin insertion hole 6 in advance. When it is tangled by the terminal pin 3 and viewed in a plan view, it is bent into a dogleg shape at the outer periphery of the slack pin 5.
When the slack pin 5 is removed from the pin insertion hole 6 in this state, a slack portion 4a of the end line 4 is formed in the shape of a dogleg in the plane described above.

JP 2009-268230 A

Since the conventional resolver stator winding structure and method are configured as described above, the following problems exist.
That is, in general, the end line of the stator winding composed of the magnet wire from the first slot of the resolver stator to the terminal pin section may be disconnected due to expansion and contraction during thermal shock. In order to avoid this, the tension is relaxed. It is necessary to keep.
Therefore, in the above-described conventional configuration shown in FIGS. 4 and 5, since the detachable sag pins are provided, the distance between the terminal pins from the first slot becomes long, and the sag line having this sag portion is externally connected. Therefore, it is necessary to fix the end line of this portion on the terminal pin holding portion with a varnish.

  Therefore, the fixing process of the end line by the varnish is a big neck at the time of mass production of the resolver. Therefore, when the varnish is to be abolished, the terminal pin holding portion of the terminal pin section from the first slot is used. One of the problems was to shorten the length.

  The present invention has been made in order to solve the above-described problems, and in particular, slack is applied to the end line of the stator winding that is tangled to the terminal pin, such as using a conventional slack pin and a wall-like member. It is an object of the present invention to provide a winding structure and a method for a resolver stator which is formed.

  A winding structure of a resolver stator according to the present invention includes an insulating cover member integrally formed on both surfaces of a ring-shaped stator, and a terminal pin holding portion having a plurality of terminal pins protruding outward from a part of the insulating cover member. A resolver stator, wherein an end line of a stator winding wound around the ring-shaped stator is entangled with the terminal pin, and a slack portion is formed in the end line between the terminal pin and the stator winding. In the winding structure, the L-shaped bent portion of the terminal pin before tangling the end line has an acute angle, and the L-shaped bent portion after the tangling has an angle larger than the acute angle. The slack portion is formed in the end line, and the L-shaped bent portion is exposed in a concave space formed in the terminal pin holding portion, and the L Character-shaped bend The angle that is larger than the angle is 90 degrees or more, and the winding method of the resolver stator according to the present invention includes an insulating cover member that is integrally formed on both surfaces of the annular stator. A terminal pin holding portion that protrudes outward from a part of the insulating cover member and has a plurality of terminal pins, and wraps an end line of the stator winding wound around the annular stator on the terminal pins, In the winding method of the resolver stator in which a slack portion is formed in the end line between the terminal pin and the stator winding, the L-shaped bent portion of the terminal pin before tangling the end line has an acute angle. None, the L-shaped bent portion after tangling is a method of forming the slack portion in the end line by making the angle larger than the acute angle, and the L-shaped bent portion is Terminal pin holder A forming methods exposed in the recess gap, also the angle of the L-shaped bent portion becomes larger angle than the acute angle is a method 90 degrees or more.

Since the winding structure and method of the resolver stator according to the present invention are configured as described above, the following effects can be obtained.
That is, an insulating cover member integrally formed on both surfaces of the annular stator, and a terminal pin holding portion that protrudes outward from a part of the insulating cover member and has a plurality of terminal pins, are wound around the annular stator. In the winding structure and method of the resolver stator, the end line of the stator winding is tangled to the terminal pin, and a slack portion is formed in the end line between the terminal pin and the stator winding. The L-shaped bent part of the terminal pin before the end line is bent has an acute angle, and the L-shaped bent part after the bundling has an angle larger than the acute angle, whereby the slack is formed on the end line. The portion can be formed, and there is no need to use a conventional slack pin and wall-like member. In addition, this makes it possible to make the protruding length of the terminal pin holding portion shorter than before, and the section from the first slot to the terminal pin becomes shorter, so it is not necessary to fix the end line by impregnating the varnish. Seismic resistance and thermal shock resistance can be secured, and reliability can be greatly improved.
In addition, since the L-shaped bent portion is exposed in a concave space formed in the terminal pin holding portion, the terminal pin can be easily bent.
Further, the angle at which the L-shaped bent portion is larger than the acute angle is 90 degrees or more, so that a slack portion can be easily formed by a slight bending back operation of the terminal pin. it can.

It is sectional drawing which shows the pre-winding state of the winding structure and method of the resolver stator by this invention. It is sectional drawing which shows the state after winding of FIG. It is sectional drawing which shows the state which formed the slack part by making the bending angle of the L-shaped bending part of a terminal pin into 90 degrees from the state after the winding of FIG. It is sectional drawing which shows the winding structure of the conventional resolver stator. It is a disassembled perspective view which expands and shows the structure of the principal part of FIG.

  The winding structure and method of the resolver stator according to the present invention is to form a slack portion on the end line of the stator winding that hangs on the terminal pin without using a conventional slack pin and wall-like member.

Hereinafter, preferred embodiments of a winding structure and a method of a resolver stator according to the present invention will be described with reference to the drawings.
In addition, the same code | symbol is attached | subjected and demonstrated to a part the same or equivalent to a prior art example.
In FIG. 1, what is indicated by reference numeral 1 is a ring-shaped stator having an annular shape as a whole, and a plurality of projecting magnetic poles 12 projecting inward at predetermined angular intervals are formed on the inner surface of the ring-shaped stator 11. Has been.

An insulating cover member 1 integrally formed by resin molding is provided on both end faces of the annular stator 11, and a stator winding 12 a is wound around each protruding magnetic pole 12 via the insulating cover member 1. ing.
A part of the insulating cover member 1 is formed with a terminal pin holding portion 2 extending along the radial direction A of the annular stator 11.

A plurality of terminal pins 3 whose entire shape is L-shaped are formed in the terminal pin holding portion 2 by insert molding, and the bending angle θ of the L-shaped bent portion 3A of the terminal pin 3 is 90 degrees. It is formed with the following acute angle.
The L-shaped bent portion 3A is provided in an exposed state in a concave space 2b formed on one surface 2a of the terminal pin holding portion 2, and is provided on the standing portion 3Aa of the L-shaped bent portion 3A. As shown in FIG. 2, the end wire 12aA of the stator winding 12a is tangled.

A known VR-type rotor 13 is rotatably provided inside the ring-shaped stator 11 via a rotating shaft 14.
Next, in the above-described configuration, FIG. 1 shows a state in which a stator winding 12a is not yet provided for the annular stator 11.
Next, in FIG. 2, the stator winding 12 a is wound around the ring-shaped stator 11, and the end line 12 a </ b> A is tangled to the standing portion 3 </ b> Aa of the terminal pin 3.

  In FIG. 1 and FIG. 2, the angle θ of the L-shaped bent portion 3A of the terminal pin 3 is an acute angle. However, when the standing portion 3Aa is pulled in the direction of arrow B in the state of FIG. The standing portion 3Aa is bent as shown in FIGS. 2 to 3, the angle θ is 90 degrees or more (or slightly less than 90 degrees), and the end line 12aA is relaxed. As a result, a slack portion 12aB is formed.

  Therefore, since it is not necessary to form the slack portion 12aB using the pin insertion hole 6 and the slack pin 5 or the bent wall-shaped member conventionally used in the terminal pin holding portion 2, for example, FIG. 3 and FIG. It is clear that the length L of each terminal pin holding part 2 along the radial direction A can be significantly shorter than before.

Further, the end line 12aA of the section from the first slot (not shown) of the ring-shaped stator 11 to the terminal pin 3 is easily formed by a slack portion 12aB for avoiding disconnection due to expansion and contraction during thermal shock. The mass production of the resolver can be easily performed.
In addition, since the distance of the end line 12aA in the section from the first slot to the terminal pin 3 is shorter than the conventional one, it is possible to prevent disconnection due to external vibration without varnish fixation. .

  The winding structure and method of the resolver stator according to the present invention can form a slack portion on the end line of the stator winding that hangs on the terminal pin without using a conventional slack pin and wall-like member. Mass production is possible.

DESCRIPTION OF SYMBOLS 1 Insulation cover member 2 Terminal pin holding | maintenance part 2a One surface 2b Recessed space | gap 3 Terminal pin 3A L-shaped bending part 3Aa Standing part 11 Ring-shaped stator 12 Protruding magnetic pole 12a Stator winding 13 Rotor 14 Rotating shaft

Claims (6)

An insulating cover member (1) integrally formed on both surfaces of the annular stator (11), and a terminal pin holding portion having a plurality of terminal pins (3) protruding outward from a part of the insulating cover member (1) (2), an end line (12aA) of a stator winding (12a) wound around the annular stator (11) is tangled to the terminal pin (3), and the terminal pin (3) and the stator In the winding structure of the resolver stator in which the slack portion (12aB) is formed in the end line (12aA) between the winding (12a),
The L-shaped bent portion (3A) of the terminal pin (3) before tangling the end line (12aA) forms an acute angle, and the L-shaped bent portion (3A) after the tangling is larger than the acute angle. The slack portion (12aB) is formed in the end line (12aA) by setting the angle (θ) to a resolver stator winding structure.   The resolver stator winding structure according to claim 1, wherein the L-shaped bent portion (3A) is exposed in a concave space (2b) formed in the terminal pin holding portion (2). .   3. The resolver stator according to claim 1, wherein the angle (θ) at which the L-shaped bent portion (3 </ b> A) is larger than the acute angle (θ) is 90 degrees or more. Winding structure. An insulating cover member (1) integrally formed on both surfaces of the annular stator (11), and a terminal pin holding portion having a plurality of terminal pins (3) protruding outward from a part of the insulating cover member (1) (2), an end line (12aA) of a stator winding (12a) wound around the annular stator (11) is tangled to the terminal pin (3), and the terminal pin (3) and the stator In the winding method of the resolver stator in which the slack portion (12aB) is formed in the end line (12aA) between the winding (12a),
The L-shaped bent portion (3A) of the terminal pin (3) before tangling the end line (12aA) forms an acute angle, and the L-shaped bent portion (3A) after the tangling is larger than the acute angle. The slack portion (12aB) is formed on the end line (12aA) by setting the angle (θ) to a resolver stator winding method.   The resolver stator winding method according to claim 4, wherein the L-shaped bent portion (3A) is exposed in a concave gap (2b) formed in the terminal pin holding portion (2). .   The resolver stator according to claim 4 or 5, wherein the angle (θ) at which the L-shaped bent portion (3A) is larger than the acute angle (θ) is 90 degrees or more. Winding method.

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