JPS60102841A - Motor - Google Patents

Abstract

PURPOSE:To reduce the size and thickness of a motor and to enhance the performance of the motor by using a metallic circuit board made of magnetic metal as the substrate of a stator. CONSTITUTION:Foillike conductor patterns are uniformly formed on the surface of the insulating film of the first insulator 1, and bonded to each other, thereby forming a metallic circuit board 2 made of magnetic metal. A stator winding 3 is positioned fixedly at the prescribed position of the board 2 by a winding support 4. The metallic board made of magnetic metal is used as a substrate of the stator in this manner to largely increase the magnetic flux concentrating degrees of magnetic circuits in a torque generating magnetic flux or a speed detecting magnetic circuit and to design to reduce the size and thickness of a motor.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the improvement of a relatively small and high-performance electric motor used in the rotary drive system of turntables or capstans of audio equipment, video equipment, etc. .

Conventional configurations and their problems In the past, with the miniaturization and thinning of equipment, the rotary drive source of this divine motor has also been made smaller and thinner. It is extremely difficult to industrialize the '4+1 system, which simultaneously achieves two things: an increase in the torque produced, an improvement in rotational performance, and an electric drive (1) for the height and 2) for reliability, along with a thinner profile. It was a big problem.

Invention 1-I The present invention uses a metal wiring board to configure an electric motor.
At the same time, using the out-the-1-T method on the upstream side, the rust on each fractured surface of the metal wiring board was extremely reduced by 6 (+: really 1) L, and the 1-41"1 of each part was “1fIJ
By assembling with extremely high resistance and ensuring improved performance and reliability of 1.1,
It is a thing that brings about an electric motor with a performance of 1' or 1°j, and it has a remarkable effect on this Shinshu JIJ) machine.

Structure of the Invention The present invention comprises a first insulating phase whose surface has a uniform insulation degree of 1, and a 2r1-shaped conductor pattern uniformly formed on the surface of the insulating film of the first insulating phase. A metal wiring board consisting of a magnetic gold body having a part of them connected to each other; a plurality of stator windings formed by winding and molding copper wire; a winding support for positioning and fixing the stator windings at predetermined positions on the metal wiring board; and a broken outer peripheral portion of the metal wiring board. a row circumference covering body to be coated, a mounting hole part covering body to be coated around the mounting holes of the metal wiring board, a rotating shaft provided in the center of the metal wiring board, and a rotating shaft provided in the center of the metal wiring board; a shaft support that stands perpendicularly to the horizontal plane of the metal wiring board and fixes it; and a disk-shaped first permanent magnet that magnetically couples with the stator winding and generates rotational force. and,
A second permanent magnet that is magnetically coupled with the FG pattern provided on the circumferential plane part of the metal wiring board and detects the rotational speed signal, and the first and second permanent magnets are bonded together on the plane part. A magnet fixing plate made of a magnetic metal body to be fixed, a turn cheagle to fix the magnet fixing plate, and a turntable, which is fitted into the center hole of the turntable and whose inner diameter is inserted into the rotating shaft, and the turn tape (V). a bearing body rotatably supported, and all or part of the winding support body, the outer circumferential skin mimic, the mounting hole cover and the shaft support are mounted on the metal wiring board and made of resin. It is constructed by outsert molding the phase.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below in Section 11.1. This will be explained in conjunction with FIG.

FIG. 1 is a four-part sectional view of one of the five examples of the present invention;
FIG. 2 is a diagram showing a portion of the top surface of FIG. 1 when the turntable portion on the upper surface is removed from the rotating shaft.

In FIG. 11 and FIG. 2, 1 is a first insulating phase whose surface is uniformly coated with an insulating film, and 2 is the first insulating phase 1.
This is a gold 1l-li+ wiring board in which a foil-like conductive pattern is uniformly provided on the surface of an insulating film, and these are combined into a gold 1l-li+ wiring board whose base is made of a magnetic metal material. .

Currently, the most commonly used one is a phenolic resin laminate 'f - copper foil f: glued together; A metal body, for example, iron plated with 1III lead or tin and having a thickness of several 100 μm to several mm is desirable.

3 is a stator winding in which a plurality of copper wires are wound and molded in advance into a desired shape on the surface of the insulating phase 1 of item 2 A 1, 1 of the metal wiring board 2. By passing current through this, a magnetomotive force is generated in each winding.

Reference numeral 4 denotes a winding support for positioning and fixing the stator winding 3 at a predetermined position on the metal wiring board 2;
are fixed to the required number of small holes provided in the metal wiring board 2 so as to firmly bite into the front and back surfaces of the metal wiring board 2, as shown in the figure.

The upper outer peripheral surface of the stator winding 3 can be adhesively fixed to the inner wall of the stator winding 3. Therefore, the stator winding 3 has a metal wiring board on its lower surface on two of its inner peripheral wall surfaces. 2, and is positioned correctly.

The outer circumferential fractured surface of the metal wiring board 2 and the inner circumferential fractured surface of the mounting hole used for attachment to other devices are made in the shape of a press nail together with the center hole. At the surface part, the first insulating material 1 is turned over,
This may spread around the inside or cause rust on each fractured surface, degrading the quality of the device.
”: 1GIIt adheres to the affected XIK product and impairs reliability. In order to protect from this, the outer circumferential fracture surface and the hole (=J hole) should be insulated using the second insulating phase. , and the outer periphery, the cover 6, the mounting hole, and the cover, respectively.

Reference numeral 7 denotes a rotating shaft provided in the medium heat section of the metal wiring board 2, which is supported vertically on the horizontal surface VC of the metal wiring board 2 so that it can stand on its own vertically. It is firmly fixed to the metal wiring board 2 via the lj suspension.

The above-mentioned outer periphery and cover body 5, hole cover body 6, winding support body 4 and shaft support J-, '+° body 8 are of the same composition, By the so-called outsert construction method used, it is possible to form the metal wiring board 2 firmly and in the same shape with extremely good adhesion to both sides of the metal wiring board 2.

Reference numeral 9 designates a hollow disk-shaped first permanent coil 11 which is capable of magnetically coupling with the magnetic flux generated through -C through the stator winding 3 and generating rotating force.

10 is a JIG provided on the circumferential side of the metal wiring board 2
This is an FG pattern consisting of a ZAG-shaped conductor.

Reference numeral 11 denotes a second permanent magnet provided adjacent to and facing the FG pattern 1Q in the plane so as to be magnetically coupled to the FC pattern 10.

The above-mentioned first and second permanent magnets 9 and 11 are both adhesively fixed to a magnet fixing plate 12 made of a magnetic metal body at their respective plane parts as shown in the figure.

Reference numeral 13 denotes a turntable that holds and fixes the magnet fixing plate 12, and supports and rotates a record or the like on a flat surface.

Reference numeral 14 denotes a bearing body which is inserted into the center hole of the turntable 13, is attached to the rotating shaft 7, and whose inner diameter is inserted to rotatably support the turn tape /l/13.

A steel ball 15 is inserted into the tip of the inner hole of the bearing body 14, and the steel ball 15 ensures smoother rotation of the rotating shaft 7 and the bearing body 14 as well as lubrication through oil supply.

With the above configuration, the following effects can be obtained.

One of the main components of this embodiment] 1. As a base for the fixing plate, a gold wire plate made of magnetic metal was used instead of the non-magnetic material of the conventional phenolic resin laminate '4/l. As a result, in the magnetic circuit for torque generation or the magnetic circuit for speed detection, the degree of convergence of the magnetic flux in each magnetic circuit is considerably increased, making it possible to achieve a smaller and thinner design (i-1). can be opened, but the following specific 〃J
There is fruit.

(f) The metal wiring board 2 is made of zinc-plated or tin-plated steel, but when processing it,
Since the inner and outer peripheries and access holes are made by punching with a press, the iron base is exposed at the fractured surface and is susceptible to rust. This g-1 not only erodes from the surface of the fracture 11i and lifts the first insulation phase i:4t AAl, but also causes the first insulation phase 1 to lx
The use of an MF agent or a special adhesive may also cause the FG pattern 10':q(/,')4≠body pattern to float and stop its function.

In this respect, in this embodiment, the outer periphery and cover 5. The mounting hole cover 69, the winding support 4, and the shaft support 8 are tightly fixed by integrally molding resin material as a second insulating material by outsert, etc., so there is no exposed broken surface. It is possible to obtain a sufficient rust prevention effect.

(C) A plurality of stator windings 3 are arranged at predetermined positions on the circumference of the metal wiring board 2, centered around the central axis of the metal wiring board 2, but the problem is the accuracy of their positioning and the method of fixing them. It depends on whether you use it or not.

In the case of this embodiment, the necessary holes are formed in advance in the metal wiring board 2 by pressing with a mold, and the winding support 4 is integrally molded and fixed to each hole or end face by outsert or the like. , the accuracy is entirely determined by the mold accuracy,
Position errors are extremely unlikely to occur. Moreover, the stator winding 3 is
While guiding and inserting the outer periphery of the winding support,
The outer peripheral part and the inner peripheral surface of the stator winding 3 are adhesively fixed, and the lower surface of the stator winding 3 is adhesively fixed to the upper surface of the metal wiring board 2, and the positional accuracy is extremely high. The strength of fixation can be so strong that it cannot be compared with anything else.

(c) When operating the device, the turntable 13 must not cause any surface deflection, and the bearing body 14, which is the actual rotational axis of the device, must not cause core wobbling. In the case of this embodiment, in order to provide the shaft support 8 by means of outsiders I and I in the part where a press hole was pre-drilled in the center of the wiring board 2 on the dot 11 side, the center hole of the rotation axis Y is similar to that described above. The f11J degree is extremely good, and that 11f
The angle can be -4゛ in 1 min, therefore the rotation +1
QII, if consideration is given only to the press-fitting work into the bearing support 8 of 7, sufficient accuracy will be obtained.

Therefore, the surface play of the turntable 13 or the core play l, Hj of the bearing body 14 described above can be suppressed to a short period of sleep.

Effects of the invention As shown in J2, this book is bright i+1, gold 1. When constructing a motor using iJ4 wiring, Outsert 71゛1 is used for J' and IJ, and each break f of the metal wiring board is used.
UR surface prevention 'l'l'l'f: Implemented extremely reliably, assembling each part with extremely high mechanical precision, ensuring improved performance and reliability, and
This realizes a small, thin, high-performance electric motor, and has a remarkable effect on this type of electric motor.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of an embodiment of the present invention, and FIG. 2 is a plan view of the main part of the same figure. 1...First insulating phase, 2...Metal wiring board,
3... Stator winding, 4... Winding support, 5
...Outer periphery and covering body, 6...Mounting hole part and covering body,
7...Rotating shaft, 8...Shaft support, 9...
...First permanent magnet, 10...FG pattern, 11...Second permanent magnet, 12...Magnet fixing plate, 13...Turntable , 14...
...Bearing body.

Claims (1)

[Claims] A first insulation film having an insulating film uniformly applied to its surface; and a magnetic metal body having a foil-like conductor pattern uniformly provided on the surface of the insulation film of the first insulation film and bonding these to each other. a metal wiring board made of
The stator windings having a number of antinodes of ν and the stator windings indicated by ``-'' are positioned and fixed at predetermined positions 11'1 of the metal wiring board. b
The wire support 1.11 body, the outer frequency wave ν of the metal wiring board described in 1), the outer frequency wave body covering the surface portion, and the mounting hole portion of the mounting hole portion of the metal wiring board. a rotating shaft provided in the center of the metal wiring board 2, and a rotating shaft placed on the horizontal plane of the metal wiring 4 and plj i.
j', a shaft support for making j stand on its own and fixing it; A first disk-shaped permanent magnet that is electrically coupled with the stator winding to generate rotational force; a second permanent magnet that is magnetically coupled with the magnet to detect a rotational speed signal; a magnet fixing plate made of a magnetic metal that adhesively fixes the first and second permanent magnets at their flat surfaces; and the magnet fixing plate. a turntable for fixing the turntable; and a bearing body for rotatably supporting the turntable by being inserted into a center hole of the turntable and having its inner diameter inserted into the rotating shaft, , all or part of the outer periphery and cover, the mounting hole cover, and the shaft support are formed by molding a resin phase around the metal wiring board. electric motor.