JP2012119122A - Structure and method of fixing lead wire to terminal pin of resolver stator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a core wire from floating by inserting the core wire of a lead wire into a hole at a raised part formed at the other end of a terminal pin.SOLUTION: In the structure and method of fixing a lead wire to the terminal pin of a resolver stator, the core wire (16b) of a lead wire (16) is inserted into a hole (41) formed in a raised part (40) at the other end (15b) of a stepped terminal pin (15) provided at a terminal holding part (14), and then the core wire (16b) is affixed to the hole (41) by fixing means (20).

Description

  The present invention relates to a structure and method for fixing a lead wire to a terminal pin of a resolver stator, and in particular, by inserting the core wire of a lead wire into a hole of a bent portion formed at the other end of the terminal pin. The present invention relates to a new improvement for preventing floating.

As a structure for connecting a component lead wire to this type of terminal pin that has been conventionally used, the structure of Patent Document 1 and the structure of an in-house manufactured work can be exemplified.
That is, the first conventional configuration disclosed in FIGS. 9 and 10 is the configuration disclosed in Patent Document 1, and a pair of terminals 15 and 15 implanted in the base portion 2 of the printed circuit board 1 in FIG. Is bent in an inverted C shape.

  One end of each of the terminals 15, 15 is formed with a round hole 5 and the other is formed with a recess 6. The first lead wire 16 of the electrical component 7 provided between the terminals 15, 15 is connected to the round hole 5. The second lead wire 15 </ b> A is provided to engage with the recess 6.

  The first lead wire 7 a and the first terminal 3 of the electrical component 7 are soldered at the position of the round hole 5, and the second lead wire 7 b and the second terminal 4 are soldered at the position of the recess 6.

The second conventional configuration disclosed in FIGS. 5 to 8 is a conventional product manufactured in-house, and is provided on both end faces of the annular stator 11 having a plurality of projecting magnetic poles 10 projecting inward. A ring-shaped insulating cover 12 formed integrally or separately is provided.
A stator winding 13 is wound around each protruding magnetic pole 10 via the annular insulating cover 12.

  A terminal holding portion 14 formed so as to protrude radially in a part of the periphery of the ring-shaped insulating cover 12 is provided with a stepped terminal pin 15 penetrating along the axial direction A by integral molding. A lead wire 16 is connected to the attached terminal pin 15.

The stepped terminal pin 15 is configured as shown in FIGS.
That is, the stepped terminal pin 15 has an end line 13a of the stator winding 13 connected to one end 15a thereof, and the end line 13a and one end 15a are connected via a spherical welded portion 17. Has been.

  An L-shaped step portion 15c is formed on the other end portion 15b side opposite to the one end portion 15a, and the one end portion 45a and the other end portion 15b are connected via the step portion 15c. They are parallel to each other and extend in the horizontal direction.

  Therefore, in the configuration of FIG. 5, the exposed core wire 16b (lead) of the lead wire end portion 16a of the lead wire 16 extending toward the other end portion 15b through the notch (not shown) of the terminal holding portion 14 is provided. The line end portion 16a side is not shown) and is connected to the other end portion 15b via a fixing portion 20 by soldering or welding (shown in FIG. 7).

JP 2006-324155 A

Since the conventional connection structure between the terminal pin and the lead wire is configured as described above, the following problems exist.
That is, in the case of the configuration of Patent Document 1 shown in FIGS. 9 and 10, the lead wire of the electrical component is soldered in a state of penetrating the round hole or the concave portion of the terminal pin. It was difficult, and there was a lot of falling solder.

  Further, in the case of the conventional configuration shown in FIGS. 5 to 8, the lead wire covering portion is held in the terminal holding portion, and the core wire is protruded to the other end side and fixed with solder or the like. Alternatively, before welding, the core wire is easily lifted and separated from the other end portion having a straight and horizontal shape, and it is extremely difficult to fix the core wire to the other end portion with solder or the like.

  A structure for fixing a lead wire to a terminal pin of a resolver stator according to the present invention includes a ring-shaped stator having a plurality of projecting magnetic poles, a ring-shaped insulating cover provided integrally or separately with the ring-shaped stator, and having a terminal holding portion in part. A stepped terminal pin provided on the terminal holding portion and having a stepped portion; an end portion for winding an end line of a stator winding formed on the protruding magnetic pole and formed on the stepped terminal pin; In a structure for fixing a lead wire to a terminal pin of a resolver stator, which is formed on an attached terminal pin and connected to the other end portion for connecting a lead wire, an L-shape is formed by bending the outer end of the other end portion. A bent raised portion and a hole formed in the bent raised portion, wherein the core wire at the tip of the lead wire is inserted into the hole and fixed by a fixing means, and One end of the terminal holding part The core portion is positioned in a state along the straight portion, and the hole is a semicircular configuration. The method of fixing the lead wire to the terminal pin of the resolver stator according to the present invention includes: a ring-shaped stator having a plurality of projecting magnetic poles; and a ring-shaped insulating cover provided integrally or separately with the ring-shaped stator and having a terminal holding portion in part. A stepped terminal pin provided on the terminal holding portion and having a stepped portion, an end portion for winding an end line of a stator winding formed on the stepped terminal pin and wound around the protruding magnetic pole, In the lead wire fixing structure to the terminal pin of the resolver stator, which is formed on the stepped terminal pin and connected to the other end portion for connecting the lead wire, it is formed by bending at the outer end of the other end portion. A bent portion that forms the And a core wire at the tip of the lead wire is inserted into the hole and fixed by a fixing means, and is removed from one end surface of the terminal holding portion. It is a method in which the core wire is positioned in a state along the straight line portion at the straight line portion of the other end protruding in the direction, and the hole is a semicircular method.

Since the structure and method for fixing the lead wire to the terminal pin of the resolver stator according to the present invention are configured as described above, the following effects can be obtained.
That is, a ring-shaped stator having a plurality of projecting magnetic poles, a ring-shaped insulating cover provided integrally or separately with the ring-shaped stator and having a terminal holding portion in part, and a stepped terminal having a stepped portion provided in the terminal holding portion A pin, one end portion for tangling an end line of a stator winding formed on the stepped terminal pin and wound around the projecting magnetic pole, and another for connecting a lead wire formed on the stepped terminal pin In the lead wire fixing structure to the terminal pin of the resolver stator comprising the end portion, the bent portion formed by bending at the outer end of the other end portion and forming an L shape, and the bent portion is formed. The core wire at the tip of the lead wire is inserted into the hole and fixed by a fixing means, so that the core wire of the lead wire is inserted into the hole of the bent portion or solder or Because it is fixed by welding etc., the core No float or away connected and fixed to the stepped terminal pins is extremely easy and reliable.
In addition, since the core wire is positioned along the straight line portion on the straight line portion of the other end protruding outward from one end surface of the terminal holding portion, the fixing process of the core wire is easy. Become.
Further, since the hole is formed in a semicircular shape, locking when the core wire is inserted into the hole is ensured, and the fixing operation of the core wire is facilitated.

It is sectional drawing which shows the lead wire fixing structure to the terminal pin of the resolver stator by this invention. It is an enlarged plan view of the stepped terminal pin of FIG. FIG. 3 is a bottom view of FIG. 2. FIG. 4 is a right side view of FIG. 3. It is sectional drawing which shows the lead wire fixing structure to the terminal pin of the conventional resolver stator. It is a top view of the stepped terminal pin of FIG. FIG. 7 is a bottom view of FIG. 6. FIG. 8 is a right surface view of FIG. 7. It is sectional drawing which shows the connection structure of the conventional lead wire and a terminal pin. It is a perspective view which shows the terminal pin of FIG.

  In the present invention, the lead wire is fixed to the terminal pin of the resolver stator so that the core wire is prevented from being lifted by inserting the core wire of the lead wire into the hole of the bent raised portion formed at the other end of the terminal pin. It is an object to provide a structure and method.

A preferred embodiment of a structure and method for fixing a lead wire to a terminal pin of a resolver stator according to the present invention will be described below 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.
1 to 4, ring-shaped insulating covers 12 formed integrally or separately are provided on both end surfaces of a ring-shaped stator 11 having a plurality of projecting magnetic poles 10 projecting inward.
A stator winding 13 is wound around each protruding magnetic pole 10 via the annular insulating cover 12.

  A stepped terminal pin 15 penetrating along the axial direction A is provided by integral molding on the terminal holding portion 14 formed so as to protrude from a part of the peripheral edge of the ring-shaped insulating cover 12. A lead wire 16 is connected to 15.

The stepped terminal pin 15 is configured as shown in FIGS.
That is, the stepped terminal pin 15 has an end line 13a of the stator winding 13 connected to one end 15a thereof, and the end line 13a and one end 15a are connected via a spherical welded portion 17. Has been.

An L-shaped step portion 15c is formed on the other end portion 15b side opposite to the one end portion 15a, and the one end portion 15a and the other end portion 15b are parallel to each other via the step portion 15c. And it is extended in the horizontal direction.
Further, a bent portion 40 bent upward is formed at the outer end 15bA of the other end portion 15b so as to be higher than the step portion 15c, and the bent portion 40 is formed in FIG. As shown, a semi-circular hole 41 is formed.

  The end portion of the lead wire 16 is inserted and held in a through hole 14A (not shown) or a groove (not shown) formed in the terminal holding portion 14, and the core wire 16b from which the covering of the lead wire 16 is removed is this. As shown in FIGS. 1 and 3, the tip of the core wire 16b is inserted into the hole 41 as shown in FIGS. 1 and 3, and the shape of the hole 41 ( Due to the half-moon shape, the core wire 16b is engaged with the hole 41 and is held in a state where it is difficult to come off.

  As shown in FIG. 3, the core wire 16b is positioned along the straight portion 15bB in the straight portion 15bB of the other end portion 15b, and the core wire 16b inserted into the hole 41 under this state By fixing by the fixing means 20 such as solder or welding at the position of the hole 41, the core wire 16b and the bent portion 40 (that is, the stepped terminal pin 15) are strongly electromechanically connected.

  The structure for fixing the lead wire to the terminal pin of the resolver stator according to the present invention is not limited to the resolver stator and can be applied to various rotating machines such as a motor.

DESCRIPTION OF SYMBOLS 10 Protruding magnetic pole 11 Ring-shaped stator 12 Ring-shaped insulation cover 13 Stator winding 13a End wire 14 Terminal holding part 15 Stepped terminal pin 15a One end part 15b Other end part 15bA Outer end 15bB Linear part 15c Step part 16 Lead wire 16b Core wire 20 Fixing means (Solder or welding)
40 bent part

Claims (6)

A ring-shaped stator (11) having a plurality of projecting magnetic poles (10), a ring-shaped insulating cover (12) provided integrally or separately with the ring-shaped stator (11) and having a terminal holding portion (14) in part, A stepped terminal pin (15) having a stepped portion (15c) provided in the terminal holding portion (14), and a stator winding formed on the stepped terminal pin (15) and wound around the protruding magnetic pole (10) One end (15a) for tangling the end line (13a) of (13), and the other end (15b) for connecting the lead wire (16) formed on the stepped terminal pin (15). In the structure for fixing the lead wire to the terminal pin of the resolver stator,
A bent raised portion (40) formed by bending at the outer end (15bA) of the other end portion (15b) to form an L shape, and a hole (41) formed in the bent raised portion (40); The lead wire to the terminal pin of the resolver stator, wherein the core wire (16b) at the tip of the lead wire (16) is inserted into the hole (41) and fixed by a fixing means (20) Wire fixing structure.   In the straight portion (15bB) of the other end portion (15b) protruding outward from one end surface (14a) of the terminal holding portion (14), the core wire (16b) is along the straight portion (15bB). The lead wire fixing structure to the terminal pin of the resolver stator according to claim 1, wherein the lead wire is fixed in a state.   The lead wire fixing structure to a terminal pin of a resolver stator according to claim 1 or 2, wherein the hole (41) is semicircular. A ring-shaped stator (11) having a plurality of projecting magnetic poles (10), a ring-shaped insulating cover (12) provided integrally or separately with the ring-shaped stator (11) and having a terminal holding portion (14) in part, A stepped terminal pin (15) having a stepped portion (15c) provided in the terminal holding portion (14), and a stator winding formed on the stepped terminal pin (15) and wound around the protruding magnetic pole (10) One end (15a) for tangling the end line (13a) of (13), and the other end (15b) for connecting the lead wire (16) formed on the stepped terminal pin (15). In the structure for fixing the lead wire to the terminal pin of the resolver stator,
A bent raised part (40) formed by bending at the outer end (15bA) of the other end part (15b) and having an L-shape; and a hole (41) formed in the bent raised part (40); A core wire (16b) at the tip of the lead wire (16) is inserted into the hole (41) and fixed by a fixing means (20). Lead wire fixing method.   In the straight portion (15bB) of the other end portion (15b) protruding outward from one end surface (14a) of the terminal holding portion (14), the core wire (16b) is along the straight portion (15bB). The lead wire fixing method to the terminal pin of the resolver stator according to claim 4, wherein the lead wire is fixed in a state.   6. The method of fixing a lead wire to a terminal pin of a resolver stator according to claim 4, wherein the hole (41) is semicircular.

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