JP2007195280A - Bipolar vr solenoid limited angle motor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable an annular bobbin after winding to be attached to a magnetic pole by engaging the claw of an annular bobbin with a groove made in the magnetic pole of a stator core. <P>SOLUTION: This bipolar VR solenoid limited angle motor structure is arranged so that the annular bobbin (6) after winding can engage beforehand with the magnetic pole (2) by a winder by providing each magnetic pole (2) of the stator core (1) with a groove (21) and engaging the claw (20) of the annular bobbin (6) for engagement with this magnetic pole (2). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a two-pole VR solenoid finite angle motor structure, and in particular, by engaging a claw of a ring-shaped bobbin in a groove provided in a magnetic pole of a stator iron core, after winding a stator coil around the ring-shaped bobbin beforehand, The present invention relates to a novel improvement for making it possible to easily attach a magnetic pole to a magnetic pole.

As this type of two-pole VR (variable reactance) solenoid finite angle motor structure that has been conventionally used, for example, a structure similar to that of Patent Document 1 and the like manufactured by the present applicant is shown in FIGS. 5 can be disclosed.
That is, what is indicated by reference numeral 1 in FIGS. 4 and 5 is a stator iron core having a frame shape as a whole, and a pair of magnetic poles 2 are formed on the inner surface of the stator iron core 1 so as to face each other inward. , 3 are formed.

  The stator core 1 is provided with an upper insulating cap 4 and a lower insulating cap 5 inserted from both sides so as to sandwich the stator core 1, and the insulating caps 4, 5 are joined together to form a cylindrical shape. And provided on the inner wall 1 a of the stator core 1.

  Each of the insulating caps 4 and 5 is formed so as to integrally form the annular bobbin 6, and each of the insulating caps 4 and 5 has a half ring-shaped bobbin 6b, and when the insulating caps 4 and 5 are combined. An annular bobbin 6 having an annular shape is formed on the outer periphery of each magnetic pole 2.

  A stator coil 7 is wound around the outer periphery of each ring-shaped bobbin 6 formed on the outer periphery of each magnetic pole 2 by hand winding or a winding machine. An end line of the stator coil 7 is connected to a terminal 9 of the connector 8 which is formed integrally with the cap 4 and protrudes outward.

  Although not shown in the drawing, the stator iron core 1 is provided with a two-pole VR-type rotor so as to be rotatable at a finite angle of 45 degrees. By supplying a drive signal to each stator coil 7, the rotor 45 It is configured to perform step rotation every degree.

US Pat. No. 6,028,383

Since the conventional two-pole VR solenoid finite angle motor structure is configured as described above, the following problems exist.
That is, a ring-shaped bobbin is formed on each magnetic pole by attaching a pair of insulating caps to the stator iron core, and the stator coil must be wound around the ring-shaped bobbin from the inside of the stator coil. Coil winding by a machine is extremely difficult, and in particular, miniaturization has been extremely difficult.
Further, as a method for solving the drawbacks of the configuration of the insulating cap method described above, there is a method using a bobbin. In this case, it is difficult to fix the bobbin to the stator core.

  The two-pole VR solenoid finite angle motor structure according to the present invention has a stator iron core having a pair of magnetic poles that form a frame shape and project toward the inside, and a ring-shaped bobbin having a stator coil fitted to each of the magnetic poles. And a groove formed on the outer wall of the magnetic pole, a claw formed on the inner wall of the annular bobbin, and a front lid and a rear lid bearing provided on both surfaces of the stator core, and a finite angle rotation. A rotating shaft provided to perform and a rotor having a pair of rotor protrusions provided on the rotating shaft and corresponding to the magnetic poles, and the claw engages the groove with the claw In addition, each annular bobbin is integrally formed with a connector having a terminal, and the connector is flush with the outer diameter of the rear lid. Arranged inside the outer diameter A configuration is also the the pivot shaft has a structure in which the striking arm of the pachinko launcher is connected.

Since the two-pole VR solenoid finite angle motor structure according to the present invention is configured as described above, the following effects can be obtained.
That is, since the claw of the annular bobbin can be freely engaged in the groove formed in each magnetic pole, the annular bobbin can be retrofitted to each magnetic pole, and the annular bobbin around which the stator coil is wound is previously attached to each magnetic pole. The high-speed winding by the winding machine can improve productivity, reduce costs, achieve miniaturization, and the like.

  In the present invention, the annular bobbin can be easily attached to the magnetic pole after the stator coil is previously wound around the annular bobbin by engaging the claw of the annular bobbin with a groove provided in the magnetic pole of the stator core. An object of the present invention is to provide a two-pole VR solenoid finite angle motor structure.

Hereinafter, preferred embodiments of a two-pole VR solenoid finite angle motor 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 and FIG. 2, reference numeral 1 denotes a stator iron core having a frame shape as a whole, and only a pair of magnetic poles 2 projecting inward are integrally opposed to the inner surface of the stator iron core 1. The tip is formed in an arc shape.

  As shown in FIG. 3, a groove 21 is formed on the outer wall 2 a of each magnetic pole 2, and the inner wall 6 a of a ring-shaped bobbin 6 provided to be fitted to the magnetic pole 2 protrudes inward. A nail 20 is formed.

  A stator coil 7 is wound around the annular bobbin 6 at a high speed by a winding machine (not shown) in advance before being fitted to the magnetic pole 2, and the annular bobbin after winding the stator coil 7. 6 is fitted to the magnetic pole 2.

  As shown in FIGS. 1 and 2, a connector 8 having a substrate 9 a and terminals 9 is integrally formed at one end of the annular bobbin 6, and the connector 8 is provided on both sides of the stator core 1. Are provided on the rear lid 31 side of the front lid 30 and the rear lid 31 provided via the fixing screw 50, and are configured to be inside or flush with the outer diameter 31 a of the rear lid 31.

  A rotor 43 having a pair of rotor protrusions 43 a is attached to each magnetic pole 2 on a rotation shaft 42 rotatably provided between a pair of bearings 40, 41 provided on the front lid 30 and the rear lid 31. It is provided to correspond.

  Therefore, in the above-described configuration, by supplying a drive signal to each stator coil 7, the rotor 43 can reciprocate and rotate at a finite angle of 45 degrees (other than 45 degrees is possible). By attaching the hitting arm of the launcher to the rotating shaft 42, the hitting arm rotates 45 degrees and then returns to its original position by its own weight. 43 reciprocating rotations can be performed.

  The present invention is applicable not only to a solenoid finite angle motor but also to a stator of a motor having a small number of poles.

1 is a cross-sectional view showing a two-pole VR solenoid finite angle motor structure according to the present invention. FIG. 2 is a cross-sectional view perpendicular to the axis in FIG. 1. It is an expanded sectional view of the A section of FIG. It is a top view of a conventional structure. It is a reverse view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stator iron core 2 Magnetic pole 2a Outer wall 6 Ring-shaped bobbin 6a Inner wall 7 Stator coil 8 Connector 9 Terminal 20 Claw 21 Groove 30 Front lid 31 Rear lid 31a Outer diameter 40 Bearing 41 Bearing 42 Rotating shaft 43 Rotor 43a Rotor protrusion

Claims (3)

A stator iron core (1) having a pair of magnetic poles (2) projecting inward from each other in a frame shape as a whole, and a ring-shaped bobbin having a stator coil (7) fitted to each magnetic pole (2) ( 6), a groove (21) formed in the outer wall (2a) of the magnetic pole (2), a claw (20) formed in the inner wall (6a) of the annular bobbin (6), and the stator core (1 A rotating shaft (42) provided to rotate at a finite angle via the bearings (40, 41) of the front lid (30) and the rear lid (31) provided on both sides of the A rotor (43) having a pair of rotor protrusions (43a) provided on the dynamic shaft (42) and corresponding to each of the magnetic poles (2),
The ring-shaped bobbin (6) is fixed to each magnetic pole (2) by engaging the claw (20) with the groove (21).   Each annular bobbin (6) is integrally provided with a connector (8) having a terminal (9), and the connector (8) has an outer diameter (31a) of the rear lid (31). The two-pole VR solenoid finite angle motor structure according to claim 1, wherein the two-pole VR solenoid finite angle motor structure is arranged flush or inside the outer diameter (31 a).   The two-pole VR solenoid finite angle motor structure according to claim 1, wherein a hitting arm of a pachinko launcher is connected to the rotating shaft.

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