JP2018191414A - Terminal pin arrangement structure of resolver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a conventional wide type terminal pin holding portion so that the terminal pin holding portion can be installed even in a narrow place. SOLUTION: In the terminal pin arrangement structure of a resolver according to the present invention, an insulating pin (20A) is provided on the outside of each terminal pin (6a to 6f) of a terminal pin holding portion (5), and a protruding magnetic pole of a ring-shaped stator (1) is provided. The end wire (3a) of the stator winding (3) wound around (2) is independently entwined with each terminal pin (6a to 6f) via the peripheral surface of the insulating pin (20, 20A). The configuration is such that the end wire (3a) can avoid contact with other terminal pins (6a to 6f) other than the above. [Selection diagram] Fig. 1

Description

  The present invention relates to a terminal pin arrangement structure of a resolver, and in particular, the terminal pin holding portion that holds each terminal pin protrudes with a width smaller than its length, and the insulation is located outside the terminal pin with respect to the terminal pin. The present invention relates to a novel improvement for preventing the end line from coming into contact with other terminal pins by tangling the end line of the stator winding through the pin.

Conventionally used terminal pin arrangement structures of this type of resolver include the configuration of Patent Document 1 shown in FIG. 3 and the configuration of Patent Document 2 shown in FIG.
That is, what is denoted by reference numeral 1 in FIG. 3 is a ring-shaped stator having a plurality of projecting magnetic poles 2 projecting inward in the resolver 10, and each projecting magnetic pole 2 is magnetized via a ring-shaped insulating cover 4. A stator winding 3 made of a wire is wound.

A part of the ring-shaped insulating cover 4 is integrally provided with a terminal pin holding portion 5 that protrudes outward along the radial direction r of the ring-shaped stator 1 or the ring-shaped insulating cover 4.
The terminal pin holding part 5 is provided with six well-known first to sixth terminal pins 6a to 6f used for inputting and outputting resolver input / output signals. Five first to fifth slack pins 7a to 7e are provided in the case.

A length A along the radial direction of the terminal pin holding portion 5 and a width B in a direction orthogonal to the length A are configured in a relationship of B> A.
The stator winding 3 wound around the protruding magnetic pole 2 is wound around the first to fifth terminal pins 6a to 6e via the peripheral surfaces of the first to fifth slack pins 7a to 7e, and the final stator winding. The end line 3a of the line 3 is tangled to the sixth terminal pin 6f via the inner peripheral surface of the fifth slack pin 7e.

  When the sag pins 7a to 7e are pulled out in the state where the above-described tangling to the terminal pins 6a to 6f of the stator winding 3 is completed, a slack (not shown) is formed on the end line 3a of the stator winding 3 and vibration is generated. It is configured so that the disconnection of the end line 3a due to, for example, can be prevented.

  FIG. 4 shows another conventional configuration of the resolver 10. Reference numeral 1 denotes a ring-shaped stator for configuring the resolver 10, and projects inward from the inner surface of the ring-shaped stator 1. A stator winding 3 is wound around the plurality of projecting magnetic poles 2 via a ring-shaped insulating cover 4, and a rotor 9 provided on the rotary shaft 13 is rotatably provided inside each projecting magnetic pole 2. It has been.

A part of the outer periphery of the ring-shaped insulating cover 4 is integrally provided with a terminal pin holding portion 5 that protrudes in the radial direction r and has a plurality of terminal pins 6a to 6g.
The terminal pin holding portion 5 is configured such that the length A and the width B are in a relationship of B> A, similarly to the configuration in the conventional configuration of FIG.

Since the terminal pins 6a to 6g are arranged in a staggered pattern when viewed along the direction of the width B, the end lines 3a of the stator windings 3 are not in contact with each other. 6a to 6g are pulled from each.
The lead wire 11 led out from the terminal pin holding portion 5 is configured to be connected to a connector 12 so as to be connected to an external device (not shown).

JP 2002-171737 A JP 2014-36566 A

Since the above-described resolver terminal pin arrangement structure is configured as described above, the following problems exist.
That is, in the case of the conventional configuration shown in FIG. 3, each terminal pin must be arranged in a horizontal row with a sufficient interval so that a plurality of end lines do not contact one terminal pin. Therefore, the width B of the terminal pin holding portion has to be larger than the length A, and the terminal pin holding portion is wide.
For this reason, when it is incorporated in a vehicle or a robot, the width becomes an obstacle and it is difficult to incorporate it, and the appearance of a resolver having a terminal pin holding portion with a narrow width B has been desired.

  In the conventional configuration of FIG. 4, each terminal pin is arranged in a staggered pattern in order to reduce the width of the terminal pin holding portion as much as possible, but there is a limit to reducing the distance between the terminal pins. there were.

  The present invention has been made in order to solve the above-described problems, and in particular, the terminal pin holding portion for holding each terminal pin is protruded with a width smaller than the length, so that the terminal pin It is an object of the present invention to provide a resolver terminal pin arrangement structure in which a stator winding is tangled through an insulating pin located outside the terminal so as not to come into contact with other terminal pins.

  A terminal pin arrangement structure of a resolver according to the present invention includes an annular stator having a plurality of projecting magnetic poles projecting inward, an annular insulating cover provided on the annular stator, and a radial direction from the annular insulating cover. A terminal pin holding portion formed to protrude outward and having a plurality of terminal pins; and an insulating pin provided on the terminal pin holding portion and positioned outside the terminal pin, wherein the ring-like shape is provided on the protruding magnetic pole. The stator winding wound through the insulating cover is wound around the terminal pin through the outer periphery of the insulating pin, and the terminal pin holding portion is orthogonal to the length rather than the length along the radial direction. And the number of the terminal pins is provided along the width direction, rather than the first number provided along the length direction. The second number And the first number is 3, the second number is 2, the number of the insulating pins is two along the length direction, and Two are provided along the width direction.

Since the terminal pin arrangement structure of the resolver according to the present invention is configured as described above, the following effects can be obtained.
In other words, a ring-shaped stator having a plurality of projecting magnetic poles projecting inward, a ring-shaped insulating cover provided on the ring-shaped stator, and protruding outward in the radial direction from the ring-shaped insulating cover A terminal pin holding portion having a plurality of terminal pins, and an insulating pin provided on the terminal pin holding portion and positioned outside the terminal pin, and wound around the projecting magnetic pole via the annular insulating cover The stator winding is entangled with the terminal pin through the outer periphery of the insulating pin, and the terminal pin holding portion is configured such that the width orthogonal to the length is shorter than the length along the radial direction. As a result, the width of the terminal pin holding portion can be made significantly smaller than before, and the resolver can be easily installed in a narrow place.
Further, the number of the terminal pins is configured such that the second number provided along the width direction is smaller than the first number provided along the length direction. A predetermined number (6 in total) of terminal pins can be disposed even in a terminal pin holding portion of a small width type.
The first number is 3, the second number is 2, the number of the insulating pins is two along the length direction, and the width direction is along the width direction. By adopting the configuration in which two terminals are provided, it is possible to prevent contact between the end lines of the terminal pins.

It is a schematic plan view which shows the terminal pin arrangement structure of the resolver by this invention. It is a schematic block diagram which shows the relationship between the end line of FIG. 1, a terminal pin, and an insulation pin. It is a schematic plane block diagram which shows the terminal pin arrangement structure of the conventional resolver. It is a schematic plane block diagram which shows the terminal pin arrangement structure of the conventional resolver.

  In the resolver terminal pin arrangement structure according to the present invention, the width of the terminal pin holding portion for holding each terminal pin is projected to be smaller than the length, and the terminal pin is interposed via an insulating pin positioned outside the terminal pin. The end line of the stator winding is tangled to prevent the end line from coming into contact with other terminal pins.

Hereinafter, preferred embodiments of a resolver terminal pin arrangement structure according to the present invention will be described with reference to the drawings.
Note that the same or equivalent parts as in the conventional example will be described using the same reference numerals.
In FIG. 1, what is indicated by reference numeral 1 is a ring-shaped stator having a plurality of projecting magnetic poles 2 projecting inward, and each projecting magnetic pole 2 is connected to a stator winding 3 via a ring-shaped insulating cover 4. Is wound.

  A part of the ring-shaped insulating cover 4 is provided with a terminal pin holding part 5 formed integrally protruding along the radial direction of the ring-shaped stator 1, and the shape of the terminal pin holding part 5 is the radial direction. The length A is defined by a width B in a direction perpendicular to the direction of the length A, and the relationship between the length A and the width B is A> B.

  As shown in FIGS. 1 and 2, two terminal pin rows each having a first row B1 and a second row B2 in the width B are formed on the terminal pin holding portion 5, and the first row is formed. Three terminal pins 6a, 6b, 6c are arranged on B1, and three terminal pins 6d, 6e, 6f are arranged on the second row B2, with a total of six terminal pins 6a-6f. It is configured.

Two insulating pins 20 are provided along the direction of the length A on the outer side (left side in the drawing) of the side of the first row B1, and the outer side (in the drawing) of the side of the second row B2. On the right side, two insulating pins 20A are provided along the length A direction.
The insulating pins 20 and 20A are made of an insulating resin and are formed integrally with or separately from the terminal pin holding portion 5, or the core is made of metal and the insulating resin is insert-molded on the outer surface of the core. If it is, it can be configured as such.

A plurality of slack pins 41 are provided below the terminal pin region C where the terminal pins 6a to 6f and the insulating pins 20 and 20A are provided, and are wound around the protruding magnetic poles 2. The end line 3 a of the stator winding 3 is sent to each insulating pin 20 </ b> A through the outer periphery of each slack pin 41.
The formation of the slack with respect to the end line 3a by the slack pin 41 is well known.

Next, tangling to the terminal pins 6a to 6d of the end wire 3a of the stator winding 3 will be described with reference to FIGS.
The first two end wires 3a of the stator winding 3 wound around the projecting magnetic poles 2 through needles of an automatic winding machine (not shown) are connected to the terminals through the slack pins 41 and the insulation pins 20A. The next two end lines 3a are tangled to the terminal pins 6b and 6e from the slack pin 41 through the insulating pins 20 and 20A, and the last two end lines 3a are tangled to the pins 6a and 6f. The end line 3a is tangled from the slack pin 41 to the terminal pins 6c and 6d via the insulating pins 20 and 20b.

Therefore, among the terminal pins 6a to 6f, the first row B1 composed of 6a to 6c and the second row B2 composed of 6d to 6f are arranged along the length A of the terminal pin holding portion 5. Thus, the width B of the terminal pin holding portion 5 can be made significantly smaller than the width B of the conventional configuration shown in FIGS.
Therefore, it can be installed in a narrow place such as a vehicle or a robot that could not be used conventionally, which can contribute to the downsizing of the vehicle or the robot.

Next, the gist of the above-described resolver terminal pin arrangement structure according to the present invention is as follows.
That is, a ring-shaped stator 1 having a plurality of projecting magnetic poles 2 projecting inward, a ring-shaped insulating cover 4 provided on the ring-shaped stator 1, and outward from the ring-shaped insulating cover 4 along the radial direction r. A terminal pin holding part 5 having a plurality of terminal pins 6a to 6f, and insulating pins 20 and 20A provided on the terminal pin holding part 5 and positioned outside the terminal pins 6a to 6f; The stator winding 3 wound around the protruding magnetic pole 2 via the annular insulating cover 4 is wound around the terminal pins 6a to 6f through the outer periphery of the insulating pins 20 and 20A, and the terminal pin The holding part 5 has a configuration in which the width B perpendicular to the length A is shorter than the length A along the radial direction r, and the number of the terminal pins 6a to 6f is as follows. Along the direction of the length A The second number N provided in the direction of the width B is less than the first number M provided in the direction B, and the first number M is 3, 2 The number N is 2, and the number of the insulating pins 20 and 20A is two along the length A direction, and the outside of the terminal pins 6a to 6f along the width B direction. It is the structure provided in position.

  The terminal pin arrangement structure of the resolver according to the present invention is an elongated shape in which the shape of the terminal pin holding portion is longer than the width, and there are only two terminal pin rows in the width direction. Since each terminal pin is entangled independently, it can contribute to miniaturization of vehicles and robots.

DESCRIPTION OF SYMBOLS 1 Ring-shaped stator 2 Protruding magnetic pole 3 Stator winding 3a End wire 4 Ring-shaped insulation cover 5 Terminal pin holding | maintenance part 10 Resolver 6a-6f 1st-6th terminal pin 20, 20A Insulation pin 41 Slack pin B1 1st row (3 rows)
B2 2nd row (2 rows)
A Length B Width C Terminal pin area M 1st number N 2nd number r Radial direction

Claims (3)

An annular stator (1) having a plurality of projecting magnetic poles (2) projecting inward, an annular insulating cover (4) provided on the annular stator (1), and a radius from the annular insulating cover (4) A terminal pin holding portion (5) having a plurality of terminal pins (6a to 6f) formed to protrude outward along the direction (r), and the terminal provided in the terminal pin holding portion (5) Insulating pins (20, 20A) located outside the pins (6a-6f),
The stator winding (3) wound around the protruding magnetic pole (2) via the annular insulating cover (4) passes through the outer periphery of the insulating pin (20, 20A) to the terminal pins (6a to 6f). The terminal pin holding portion (5) is configured such that the width (B) perpendicular to the length (A) is shorter than the length (A) along the radial direction (r). A terminal pin arrangement structure for a resolver.   The number of the terminal pins (6a to 6f) is a second number provided along the width (B) direction rather than the first number (M) provided along the length (A) direction. 2. The resolver terminal pin arrangement structure according to claim 1, wherein the number (N) is smaller.   The first number (M) is 3, the second number (N) is 2, and the number of the insulation pins (20, 20A) is two along the direction of the length (A). 3. A resolver terminal pin according to claim 2, wherein the resolver terminal pin is provided outside the terminal pin (6a to 6f) along the direction of the width (B). Placement structure.

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