JP3513625B2 - Winding method to iron core - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of winding an armature of a motor, a field, a transformer, an electromagnet, a reactor, etc. on an iron core .
It is about the law . It is particularly suitable for use with thin-walled molding motors and has been specially developed for that purpose
Insulators that have been used are used. 2. Description of the Related Art In recent years, various small and thin motors have been used in various fields, and accordingly, downsizing and thinning of insulators have been required. On the other hand, small and highly efficient motors
In order to manufacture, the insulator is thinned and the winding
And the insulation distance of the iron core, that is, the thickness of the insulator
Needs to be as small as possible. In order to meet such a demand, an insulator is formed of a synthetic resin, and this is bonded to an end face or a slot of an armature as shown in, for example, JP-A-3-118753. As described in JP-A-235647, the shaft is press-fitted and fixed. However, when used in a precision small motor, there are problems in controlling the amount, temperature, maintenance, components, etc. of the adhesive, and the use of the adhesive is not preferable. Therefore, in order to solve such a problem, as shown in FIG. 7, an insulator is formed into an end face E and a fitting face F in the same shape as the end face and the slot of the iron core, and this is simply attached to the iron core. In this case, a method was considered in which the end face and the slot of the iron core were not bonded by an adhesive or pressed into the shaft. [0006] However, when the thing shown in FIG. 7 is molded with a synthetic resin and is simply mounted on the iron core without using any fixing means, the winding is wound around the iron core. problems such as insulator is deformed or fall off lifted when performing there is, was Tsu difficult der be subjected to a winding accurately. [0007] Insulator molding is caused by variations in dimensions of the iron core itself, variations and irregularities in the coating of the iron core, fluctuations in the winding jig, and changes in the temperature and humidity of the polyamide resin (eg 66 nylon), which is a raw material of the insulator. This is because a dimensional change occurs later. In other words, small irregularities are formed in the slot and the dimensional change of the insulator causes the insulator to come into contact with only a part of the slot of the iron core and the other part to rise, especially when the insulator is manufactured to be thin and small. Because of the non-uniform contact, the holding force would be extremely weak. Further, as shown in Japanese Utility Model Laid-Open Publication No. Sho 60-174449, a locking pin is formed on an insulator (insulator) so that it is closely fitted into a small hole of a core. As disclosed in Japanese Patent Application Laid-Open No. 3-74154, a ridge is formed on an insulator so that the ridge is fitted into a concave groove of a stator core. But,
In these cases, the locking pin and the small hole, or the ridge and the concave groove fit only when the insulator and the core are fitted at a specific position, and the locking pin and the ridge are not fitted at other positions. It will work to prevent the fitting. Also,
In order to fit the locking focus small hole or ridge with the concave groove, it is necessary to manufacture these shapes and dimensions correctly without errors, and to allow for variations in the dimensions of the iron core itself and slight deformation of the insulator There is no function. Also, if small holes or grooves are formed in the core (core),
It is important that the core (iron core) is not subjected to any processing, since the magnetic force characteristics are impaired because the magnetic force is not exerted. Means for Solving the Problems In other words, the insulation
Even if the insulator is thin, if the insulator can absorb the unevenness of the slot of the iron core and the dimensional change of the insulator so that the insulator can evenly contact the iron core slot when the insulator is installed, the iron core can be processed without any processing. While maintaining the characteristics at 100%, the insulator can be securely fitted and the holding force can be increased. And use such an insulator
If you wire the iron core, make the insulator as thin as possible
While it is possible to perform accurate winding processing, a small and highly efficient motor
Become. [0011] Therefore, the winding method <br/> to core according to the present invention, the slot will be the end surface of the core and the windings are wound, substantially the same shape as the end face of the core of an insulating synthetic resin The end face and the fitting surface abutting on the slot are formed so that the winding of the fitting surface abutting on the slot is wound.
Place the insulator, which has a thin ridge that deforms into a fold by contacting the slot,
Abutting on the socket, deform it into a fold, and attach it.
Iron core from the top of the insulator, including the ridges on the exterior
In which a winding is applied . When the insulator is mounted on the iron core, the ridge having a thin fitting surface comes into contact with the ridge in a folded manner along the unevenness of the slot of the iron core. That is, the fitting surface of the insulator comes into contact with the slot evenly by the ridge regardless of the unevenness of the slot of the iron core, so that a strong holding force can be obtained. That is, if the ridge is thinned so as to be deformable into a fold, the ridge is appropriately deformed into a fold when the insulator is mounted, by absorbing unevenness of the slot of the iron core and a dimensional change of the insulator. Then, it comes into contact with the slot evenly. Even without special processing such as cuts or grooves on the core side, the ridges are appropriately deformed and abut against the slots of the iron core regardless of the position. And in
The Schlater is securely fixed to the iron core
Therefore, it is possible to accurately perform the winding. further,
The ridge part deformed like a fold at the time of winding also has a winding on it
Insulation near this part
The clearance between the rotor and the iron core is
Performance loss due to ridges on insulator
Can also be almost nonexistent. Next, a method for winding an iron core according to the present invention will be described.
Will be described. First, an embodiment of an insulator used in the present invention will be described with reference to the drawings for an armature core of a thin-walled molded motor. Reference numeral 1 denotes a synthetic resin insulator having an end surface 2 and a fitting surface 3 formed thereon. The end surface 2 is formed in substantially the same shape as the end surface 5 of the armature core 4, and the fitting surface 3 is formed so as to abut the slot 6 of the armature core 4. The synthetic resin for molding the insulator 1 may be a thermoplastic synthetic resin or a thermosetting synthetic resin as long as it is an insulating synthetic resin. Reference numeral 7 denotes a thin ridge formed on the fitting surface 3 of the insulator 1. The ridges 7 may be provided one by one on the left and right facing each other so as to be located substantially at the center of the contact surface of the slot 6 as shown in the figure, or a plurality of ridges 7 may be provided at appropriate positions. Good. This can be appropriately selected depending on the size of the slot 6 and the material of the insulator 1. Further, if the ridge 7 can be deformed into a fold, it may be bent right and left instead of straight. The ridges 7 In any case, try Nagy was well deformed along the irregularities of the slot 6, also wound also on top of the ridge
It suffices if a line is applied . Reference numeral 8 denotes a through hole formed to allow the insulator 1 to pass through the shaft 9 of the armature core 4. This through hole 8 may be formed to an appropriate size as needed. Next, using the insulator 1 described above,
The method of winding the iron core according to the present invention will be described. First, the insulator 1 is mounted on both end faces 5 of the armature core 4 as shown in FIG. Then, the end face 5 of the armature core 4 is covered with the end face 2 of the insulator 1, and the fitting face 3 of the insulator 1 abuts the slot 6. In this case, in particular, the ridge 7 abuts on the slot 6 while deforming in a fold shape, so that the insulator 1 is simply fitted into the armature core 4 and is strongly fitted and held. Will be. And after this
Insulation including the ridges 7 deformed into folds on the surface 3
A winding is applied to the armature core 4 from above the radiator 1. [0019] The above examples were described winding method of the armature core of the thin molded motor, but the winding direction of the present invention
The method is not limited to the above-described embodiment, and can be used for, for example, a motor field, a transformer, an electromagnet, an iron core such as a reactor. As described above, according to the method of winding on the iron core according to the present invention, it is possible to wind the end face of the iron core and the winding.
Doo to become slots, the windings of the HamaSomen abutting on the molding to slots HamaSomen abutting the substantially the same shape end face and the slot between the end face of the core of an insulating synthetic resin is wound
Insulator with a thin ridge that deforms into a fold by contacting the slot where it will be
Is deformed into a fold by bringing the ridge into contact with the slot.
And then install it, including the ridges on the fitting surface.
The windings are applied to the iron core from above the insulator, so that regardless of the irregularities of the slots in the iron core and the dimensional change of the insulator, the fitting surface of the insulator can be evenly and evenly brought into contact with the slots by the ridges. Therefore, a strong holding force can be obtained without using an adhesive or the like. Furthermore, there is no cut or groove in the iron core, so it does not affect the magnetic force characteristics, and small holes or grooves are formed in the conventional iron core and the insulator projections are fitted to this. 100% iron core characteristics compared to
Can demonstrate. Also, ridges deformed into folds during winding
Minutes will be wound on it, so this part
Extremely close clearance between insulator and iron core
That the insulator has a ridge.
There is almost no performance loss. And these comprehensive
As a result, the iron core wound by the method of the present invention is
It will be a very good product.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of an insulator used in the present invention. FIG. 2 is a plan view of an armature core. FIG. 3 is a front view of a state in which an insulator is mounted on an armature core; FIG. 4 is an enlarged sectional view taken along line AA of FIG. 1; FIG. 5 is an enlarged sectional view taken along line BB of FIG. 1; FIG. 6 is an enlarged sectional view taken along line CC of FIG. 1; FIG. 7 is a plan view of a conventional insulator. [Description of Signs] 1 Insulator 2 End face 3 Fitting face 4 Armature core 5 End face 6 Slot 7 Ridge 8 Through hole 9 Axis E End face F Fitting face

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Claims (1)

(57) to the Claims 1] so that the end face of the core and the windings are wound scan <br/> lot end having substantially the same shape as the end face of the core of an insulating synthetic resin that the windings of the HamaSomen to <br/> slot abutting by molding a HamaSomen abutting the surface and the slot is wound
An insulator formed with a thin ridge that deforms into a fold by abutting the slot at a certain point ,
Abut the slot, deform it into a fold, and attach it.
On the insulator, including the ridges on the back fitting surface
To the iron core characterized by applying a winding to the iron core
Winding method.