JPH033625A - Armature assembly - Google Patents

Abstract

PURPOSE:To facilitate assembling by fitting the first coils of the laminated layer number of the coils of a bobbin wound up with conductors, placed more on the side of a yoke, on every other pole, and by fitting second coils which are almost proper to spaces generated between the first coils, in the spaces. CONSTITUTION:The first coils 8 of forming trapezoidal cross-sectional areas, placed more on the side of a yoke with the laminated layer number of the coils fitted inside or outside the yoke 5 (inside the yoke in the figure) are fitted on every other pole 4. Then, second coils 9 which are almost proper to spaces generated between every other pole 4a and the first coils 8, are formed, and are fitted in the spaces. As a result, assembling is facilitated, and the rate of the space factor of conductors is improved, and the efficiency of a motor is improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an armature assembly for an electric motor, etc., and is particularly easy to assemble and does not reduce productivity (the space factor of the conducting wire of the excitation coil is This invention relates to an armature assembly with improved characteristics.

[Conventional technology]

An example of the conventional armature assembly for facilitating the assembly described above is shown in Figs. In order to prevent them from engaging with the adjacent excitation coils 3a and 3b and making it impossible to fit them together, the conductor wires are wound and laminated to a thickness of approximately H with a distance of 1 between the tips of the adjacent magnetic poles 3a and 4ta. An armature assembly B is constructed by fitting an excitation coil 3 in which a conducting wire 1 is wound over the entire length of a bobbin / into an even number of magnetic poles protruding at equal intervals on the inner circumference of a yoke j. Since the laminated thickness of the conducting wire 2 is kept small by the distance 1 between the magnetic poles 3a and 3b, a large space is created on the yoke side between the adjacent excitation coils 3a and 3b, and the above space is effectively used. It was not used for this purpose.

Another example is that when forming an excitation coil by winding the conductor directly around the magnetic pole in order to improve the space factor of the conductor, an expensive winding machine is required, and the work time is long. Met.

[Problem to be solved by the invention]

In such conventional armature assemblies, as shown in FIGS. 1/1, 12, and 13, conductive wires are wound and laminated to a thickness of approximately 1% of the distance between the tips of adjacent magnetic poles ≠ and ≠a. Since the excitation coil 3, in which the conductor 2 is wound over the entire length of the bobbin l, is fitted into the magnetic poles, the laminated thickness of the conductor 2 can be kept small, so if the number of turns is the same, the diameter of the conductor Therefore, the resistance value of the conductor wire becomes thick, which increases heat generation and reduces the efficiency of electric motors, etc., so there was a problem in solving this problem.

In addition, forming an excitation coil by winding a conductor directly around the magnetic pole requires an expensive winding machine and takes a long time (which reduces productivity, so the problem of solving this problem is there were.

[Means to solve the problem]

In order to solve the above-mentioned problems in the prior art, the present invention provides an armature assembly in which an excitation coil, in which a conductive wire is wound around a bobbin, is fitted into an even number of magnetic poles protruding from the inner or outer circumference of a yoke. In this case, the number of laminated conductive wire windings on the magnetic pole tip side is smaller than the laminated number of conductive wire windings on the yoke side of the bobbin, and the first excitation coil is wound with conductive wire around the bobbin every seventh of the even number of magnetic poles. A second bobbin in which a conductive wire is wound around the bobbin so as to fit approximately the space formed by the magnetic pole in which the first excitation coil is not fitted and the first excitation coils on both sides adjacent to the first excitation coil. The excitation coil is fitted onto a magnetic pole to which the first excitation coil is not fitted.

[Effect]

According to the above-described means of the present invention, the first excitation coil, in which the conductive wire is wound around the bobbin with a reduced number of laminated layers on the magnetic pole tip side than on the yoke side of the bobbin, is fitted to every seventh even number of magnetic poles. to wear

Next, a second excitation coil is installed in which the conductive wire is wound almost uniformly in the number of laminated layers from the yoke side of the bobbin toward the magnetic pole tip side, or the number of laminated layers is increased on the magnetic pole tip side than on the bobbin yoke side. A second excitation coil having a conducting wire wound around a bobbin is fitted into a magnetic pole of the even number of magnetic poles to which the first excitation coil is not fitted.

Therefore, the excitation coil with improved space factor of the conducting wire is designed so that the adjacent first excitation coil and second excitation coil do not engage with each other (easily fitted into the magnetic poles). The invention will be explained with reference to embodiments shown in the drawings.0 Fig. 5 shows an embodiment of the armature assembly of the present invention, which is a well-known core formed by punching out electromagnetic steel plates and laminating a predetermined number of them. r has an annular yoke j and an even number of magnetic poles protruding from the inner periphery of the yoke at equal intervals.

In FIGS. 1 and 2, the width W of the flange/a on one side of the bobbin/, that is, on the yoke side, is the width W of the flange/a on the other side, that is, on the tip side of the magnetic pole. /b is formed to be larger than the width w2, and the conductive wire g has a larger number of laminated layers (wound) on the yoke side, and is wound with a smaller number of laminated layers on the tip side of the magnetic pole. As shown in the figure, the yoke-side flanges/a are fitted into the yoke j every even number of magnetic poles, . . . 01.

An example of the No. 1 excitation coil is shown in FIG. 3 and FIG. The wound conductive wire is wound in a substantially uniform number of layers from the yoke side to the magnetic pole tip side.

Then, the above-mentioned second excitation coiler is connected to an even number of magnetic pole groups,
. . , the first excitation coil is fitted to the unfitted magnetic pole≠a, . . . , and the armature assembly t shown in FIG. 5 is assembled.
is configured.

In another example of the first excitation coil, as shown in FIGS. 2 and 1, the width Wl of the flange/a on the yoke side of the bobbin l is larger than the width W2 of the flange lb on the tip end side of the magnetic pole. is wound with a substantially uniform number of layers near the end on the yoke side, and the number of layers decreases from the middle toward the tip of the magnetic pole. As shown in Fig. r, this first excitation coil ♂ is fitted with a yoke-side collar /a on the yoke J every even number of magnetic poles. The second excitation coiler has the same shape as shown in Figures 3 and 3 above. 1. A, . . . are fitted into the armature assembly 6 shown in the figure.

In addition, another example of the second excitation coiler is shown in FIG. 1 and FIG.
is smaller than the width W2 of the flange/'b on the tip side of the magnetic pole. ing.

Then, the first excitation coil is fitted onto the unfitted magnetic pole to form an armature assembly (not shown).

Note that the gap between the surfaces where the first excitation coil and the second excitation coil are in contact is as small as possible (this improves the space factor of the conducting wire. Make sure the ampere turns are approximately equal.

According to the armature assembly configured as described above, the first excitation coil and the second excitation coil, which have an improved space factor for the conducting wire, do not mesh with each other (they are easily fitted onto the magnetic poles). be done.

〔Effect of the invention〕

As explained above, the armature assembly according to the present invention is constructed by fitting an excitation coil in which a conductive wire is wound around a bobbin to an even number of magnetic poles protruding from the inner circumference 4 or the outer circumference of a yoke. In a three-dimensional structure, the number of laminated conductor windings on the tip side of the magnetic pole is smaller than the number of laminated conductor windings on the side of the bobbin, and the first excitation coil is wound with a conductive wire around the bobbin, and an even number of magnetic poles are used. The first excitation coil is fitted every seven of the bobbins, and the conductor is wound around the bobbin so that the first excitation coil almost fits into the space formed by the unfitted magnetic pole and the first excitation coils on both sides adjacent to each other. Since the excitation coil No. 2 is fitted to the magnetic pole where the first excitation coil is not fitted, the armature can be easily assembled, and the space factor of the conductor of the excitation coil is improved, so that the resistance value of the conductor is reduced. It has excellent effects such as reducing the amount of energy and improving the efficiency of electric motors and the like.

FIG.

l...Bobbin, /a...Yoke side collar, /
b...Flame on the tip side of the magnetic pole, J...Conducting wire, 3. Ja
, 3b... excitation coil, ≠,! a...magnetic pole, j
... Yoke, Otsu, ... Armature assembly, 7... Core, ? ...first excitation coil, ta...second excitation coil, lθ...rotor, /l...rotation shaft.

[Brief explanation of the drawing]

FIGS. 1 to 1θ show embodiments of the present invention, and FIGS. 11 to 13 show conventional examples. Figure 1, Figure 3, Figure 2, Figure 2, and Figure 1/Figure are perspective views of the excitation coil, Figure 2, Figure 2, Figure 1゜Figure 1θ, and Figure 12 are cross-sectional views of the excitation coil. The side view, Figure 1, Figure R, and Figure 1J are the cross-sectional views of the armature assembly. Miyari Kuwahayazu tr Diagram (Cross section E-E) 6ftR Seni 1ritsu, Iki-Tree 3 diagram

Claims (3)

[Claims] (1) In an armature assembly in which an excitation coil with a conductor wound around a bobbin is fitted to an even number of magnetic poles protruding from the inner or outer periphery of a yoke, the number of layers of conductor windings on the yoke side of the bobbin A first excitation coil, in which a conductor is wound around the bobbin with a reduced number of laminated conductor windings closer to the tip end of the magnetic pole, is fitted to every other even number of magnetic poles, and the first excitation coil is fitted. A second excitation coil in which a conducting wire is wound around a bobbin so as to fit approximately into the space formed by the magnetic pole that is not fitted and the first excitation coils on both sides adjacent to the first excitation coil is inserted. An armature assembly characterized by being fitted with magnetic poles. (2) The armature assembly according to claim 1, wherein the second excitation coil is formed by winding a conducting wire in a substantially uniform number of layers from the yoke side of the bobbin to the magnetic pole tip side. . (3) The second excitation coil is characterized in that the conductive wire is wound around the bobbin such that the number of laminated conductive wire windings on the magnetic pole tip side is greater than the laminated number of conductive wire windings on the yoke side of the bobbin. An armature assembly according to claim 1.