JP2008172863A - Rotary electric machine and its manufacturing process - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a rotary electric machine in which a winding can be applied with high space factor, and to obtain its manufacturing process. <P>SOLUTION: In a winding 40 being applied to a bobbin body 26, bends 44, 54 and 64 are formed at one end of the winding bodies 42, 52 and 62, and the winding bodies 42, 52 and 62 are switched to next row of winding bodies 42, 52 and 62 by switching portions 46, 56 and 66 continuous from these bends 44, 54 and 64. The bends 44, 54 and 64 constituting the winding 40 of the same layer are set to be positioned on bend setting lines L1, L2 and L3 inclining in the longitudinal direction for the width direction of the longitudinal wall 28 of the bobbin body 26. Consequently, the winding 40 can be wound tightly around the winding bodies 42, 52 and 62 and the switching portions 46, 56 and 66 without being made to be thin at the switching portions 46, 56 and 66. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an armature of a rotary electric machine such as a motor and a method for manufacturing the same.

In the concentrated winding coil disclosed in the following Patent Document 1, the windings are rearranged in the penetrating direction of the winding frame every time one turn of the winding is applied to the outer periphery of the winding frame, and windings of new turns are continuously made. It is applied to the outer periphery of the reel. As a result, a multi-turn winding is applied to one layer.
Japanese Patent Laid-Open No. 2000-245092

  By the way, in the above-mentioned patent document, as shown in FIGS. 2 and 3, in order to rearrange the windings in the penetrating direction of the winding frame, the windings are bent toward the adjacent row. Naturally, the bent portion is formed for each row of the windings. However, in the configuration disclosed in the above-mentioned patent document, the bent portion of each row is arranged in the same direction as the penetration direction of the winding frame.

  In such a configuration, the width dimension of the winding along the penetration direction of the winding frame must be narrowed in the rearrangement portion, so that it is not geometrically established. When a wire is applied, a gap is generated between the windings in adjacent rows, and it is difficult to improve the space factor of the windings.

  In view of the above facts, an object of the present invention is to provide a rotating electrical machine that can be wound with a high space factor and a manufacturing method thereof.

  The rotating electrical machine according to the first aspect of the present invention includes a core in which a plurality of teeth project radially from the outer periphery to the radially outward direction, and is arranged in a projecting direction of the teeth every turn. A rotating electric machine having an armature configured to include a winding wound around an outer peripheral portion of the teeth around an axis having the protruding direction as an axial direction in a state aligned in the protruding direction, A winding connected to one end of a plurality of substantially C-shaped winding bodies that constitute one turn of the winding and are arranged in the protruding direction at the outer periphery, and one of the winding bodies adjacent to each other in the protruding direction. And a rearrangement unit that is bent toward the other end of the other winding body and is connected to the other end of the other winding body. And each one end of the plurality of winding main bodies arranged in the protruding direction. Each curved portion connected, set the curved portion set on a line inclined toward the outer circumference of the tooth with respect to the protruding direction, it is characterized in that.

  In the armature constituting the rotating electrical machine according to the first aspect of the present invention, winding is applied to the outer peripheral portion of the core teeth. One end of the winding main body constituting the winding extends through a curved portion, and the rearrangement portion is connected to the other end of another winding main body adjacent to the protruding direction of the teeth. Thus, the winding main body constituting the winding is wound a plurality of times (a plurality of turns) so as to be aligned in the protruding direction of the teeth.

  By the way, in the outer peripheral part of the teeth, a plurality of winding main bodies are provided so as to form a line along the protruding direction of the teeth, so that a plurality of curved parts are also provided. Here, each music part is set on a music part setting line inclined in the outer peripheral direction of the teeth with respect to the protruding direction of the teeth. For this reason, the dimension of the rearrangement part corresponding to the wire diameter or the width dimension of the winding main body along the protruding direction of the teeth can be arranged with no gap or very small gap in the same state as the winding main body. Thereby, the so-called “space factor” can be improved.

  In the present invention, when the portions arranged in a row in the protruding direction of the teeth are considered as one layer of the winding, the teeth may be configured so that only one layer of winding is applied. The winding may be applied so that a plurality of layers are stacked in a direction orthogonal to the protruding direction of the teeth.

  Further, in the present invention, the winding may be configured to be applied to the teeth as a result. That is, a configuration may be adopted in which the winding is directly applied to the teeth, or the winding is applied to a mounting member (for example, a bobbin described later) that is configured separately from the core and can be mounted on the teeth. It is good also as a structure which winds around a tooth | gear indirectly by mounting | wearing the teeth with the mounted member.

  Furthermore, in the present invention, the curve setting line may be a straight line or a curved line.

  A rotating electrical machine according to a second aspect of the present invention is the rotating electrical machine according to the first aspect of the present invention, wherein the bending is based on an inclination angle of the rearrangement portion connected to one end of the winding main body with respect to the winding main body. It is characterized in that the inclination of the part setting line is set.

  In the rotating electrical machine according to the second aspect of the present invention, the bending of the winding body in the outer circumferential direction of the teeth with respect to the protruding direction of the teeth based on the inclination angle of the rearrangement portion connected to one end of the winding body. The inclination of the part setting line is set. For this reason, if any one of the inclination angle of the above-described rearrangement unit and the inclination of the curve setting line is set, any other is determined. Thereby, the setting of the inclination angle of the rearrangement portion and the inclination of the curved portion setting line is facilitated.

  In the present invention, the curve portion setting line may be set based on the inclination angle of the rearrangement portion with respect to the outer circumferential direction of the teeth, and the setting conditions are not particularly limited. Therefore, for example, the curved portion setting line may be set so that the inclination angle of the curved portion setting line with respect to the protruding direction of the teeth in the outer peripheral direction of the teeth is the same as the inclined angle of the rearrangement portion with respect to the peripheral direction of the teeth. The curve setting line is set so that the curve setting line inclines toward the outer periphery of the teeth with respect to the protruding direction of the teeth at an angle obtained by adding, subtracting, or dividing a certain value to the inclination angle of the rearrangement portion with respect to the outer periphery of the teeth. May be. Furthermore, the curve setting line may be a straight line or a curved line.

  A rotating electrical machine according to a third aspect of the present invention is the linear electric machine according to the first or second aspect of the present invention, wherein the rotating electric machine is inclined at a constant angle with respect to the protruding direction of the teeth in the outer peripheral direction of the teeth. The music part setting line is set in the above.

  In the armature constituting the rotating electrical machine according to the third aspect of the present invention, the curve setting line is set in a straight line inclined at a constant angle in the teeth outer peripheral direction with respect to the teeth protruding direction. For this reason, the curved portions are linearly arranged in a state inclined at a certain angle in the outer circumferential direction of the teeth with respect to the protruding direction of the teeth.

  A rotating electrical machine according to a fourth aspect of the present invention is the rotating electric machine according to any one of the first to third aspects, wherein the outer peripheral shape is a polygonal shape that can be fitted into the teeth. In addition, the bobbin on which the winding is applied to the outer peripheral part is provided, and the rearrangement part is set to the longest side among the polygonal sides that are the outer peripheral shape of the bobbin. .

  In the rotating electrical machine according to the fourth aspect of the present invention, a winding is applied to an outer peripheral portion of a bobbin whose outer peripheral shape is formed in a cylindrical shape, and the bobbin provided with this winding is attached to a tooth. As a result, winding is applied to the teeth.

  Here, among the outer peripheral portions of the bobbin whose outer peripheral shape is a polygonal shape, the rearrangement unit is set at the longest side portion of the polygon. For this reason, in the rotating electrical machine according to the present invention, many rearrangements can be set, and as a result, a large number of winding main bodies constituting the winding can be arranged in the protruding direction of the teeth.

  According to a fifth aspect of the present invention, there is provided a rotating electrical machine manufacturing method comprising: a core having a plurality of teeth projecting radially outward from an outer peripheral portion; and an axis around the projecting direction of the teeth. And a winding wound around the outer peripheral portion of the tooth, and a rotating electric machine manufacturing method for manufacturing a rotating electric machine having an armature configured to be wound around the outer peripheral portion of the tooth. The winding is wound around the outer peripheral portion of the teeth so that the windings are arranged in the protruding direction by rearranging the winding from the formed winding in the protruding direction and winding the winding around the outer peripheral portion of the teeth. The position of the curved portion formed in each winding in each row is set on a curved portion setting line inclined in the outer circumferential direction of the teeth with respect to the protruding direction each time it is rearranged in the protruding direction. It is characterized by that.

  According to the method of manufacturing a rotating electrical machine according to the fifth aspect of the present invention, the winding is applied to the core teeth, and the winding is formed on the portion already wound around the outer periphery of the teeth. The windings newly wound in the protruding direction of the teeth are rearranged in the protruding direction of the teeth so that they are arranged next to each other.

  When the windings are rearranged as described above, the windings are bent toward the next row, but in the method for manufacturing a rotating electrical machine according to the present invention, the formation position of the curved portion in each row is the protruding direction of the teeth. Is set on a curve setting line that is inclined by a predetermined angle in the outer circumferential direction of the teeth. By setting the position of the curved portion in this way, the wire diameter or width of the portion of the winding used for rearrangement remains the same as that of the portion other than the winding, and there is no gap (or extremely small) Can be arranged in a gap). Thereby, the so-called “space factor” can be improved.

  In the present invention, when the portions arranged in a row in the protruding direction of the teeth are considered as one layer of the winding, the teeth may be configured so that only one layer of winding is applied. The winding may be applied so that a plurality of layers are stacked in a direction orthogonal to the protruding direction of the teeth.

  Further, in the present invention, the winding may be configured to be applied to the teeth as a result. That is, a configuration may be adopted in which the winding is directly applied to the teeth, or the winding is applied to a mounting member (for example, the bobbin described above) that is configured separately from the core and can be mounted on the teeth. It is good also as a structure which winds around a tooth | gear indirectly by mounting | wearing the teeth with the mounted member.

  Furthermore, in the present invention, the curve setting line may be a straight line or a curved line.

<Configuration of the present embodiment>
FIG. 9 is a plan view schematically showing the core 12 of the motor 10 as the rotating electrical machine according to the embodiment of the present invention. First, the outline of the configuration of the core 12 will be briefly described.

(Configuration of core 12)
The core 12 includes an inner core 14 and an outer core 16. The inner core 14 is formed, for example, by laminating a plurality of core pieces formed by punching a magnetic plate material such as a thin silicon steel plate in the thickness direction. A circular hole 18 is formed in the approximate center of the core 12. For example, when the motor 10 to which the core 12 is applied is a brushless motor, a permanent magnet coaxially and integrally fixed to the rotating shaft is loosely fitted coaxially into the circular hole 18.

  A plurality of teeth 20 are formed on the inner core 14. The teeth 20 protrude from the outer peripheral portion of the inner core 14 at regular angles around the center of the circular hole 18. The teeth 20 are constituted by projecting pieces formed on the respective core pieces. As described above, when the core pieces are stacked, when the protruding pieces of the core pieces overlap each other and viewed along the radial direction of the circular hole 18, the teeth 20 extend along the central axis direction of the circular hole 18. It is formed in a substantially rectangular shape or a substantially parallelogram shape (substantially rectangular shape in the present embodiment) which is a width direction along the tangential direction of the circular hole 18 in the longitudinal direction.

  On the other hand, the outer core 16 is formed in a substantially cylindrical shape. The outer diameter of the outer core 16 is larger than the radius of a virtual circle concentric with the circular hole 18 passing through the tip of the tooth 20. On the other hand, the inner diameter of the outer core 16 is smaller than the virtual circle. In addition, fitting grooves 22 are formed around the center of the inner peripheral portion of the outer core 16 at regular angles. The fitting groove 22 is formed corresponding to the above-described tooth 20. When the inner core 14 is inserted into the inner side of the outer core 16, the tip of the tooth 20 is fitted into the fitting groove 22.

  A plurality of bobbins 24, each of which is grasped as a mounting member or an insulating member, are mounted on the core 12. As shown in FIG. 5, the bobbin 24 includes a bobbin main body 26. The bobbin body 26 includes a pair of vertical walls 28 formed in a substantially rectangular plate shape. These vertical walls 28 are provided in parallel so as to face each other in the thickness direction. Both longitudinal ends of the vertical wall 28 are connected by a pair of horizontal walls 30. The longitudinal dimension of the lateral wall 30 along the thickness direction of the longitudinal wall 28 is set to be shorter than the longitudinal dimension of the longitudinal wall 28. Therefore, the front surface of the bobbin body 26 along the width direction of the longitudinal wall 28 and the lateral wall 30. The visual shape is a substantially rectangular shape whose longitudinal direction is along the longitudinal direction of the vertical wall 28.

  A flange portion 32 is formed at one end of the bobbin main body 26 in the penetrating direction. The outer peripheral shape of the flange portion 32 is substantially similar to the outer peripheral shape of the bobbin main body 26, and extends in a direction substantially orthogonal to the penetrating direction of the bobbin main body 26. A flange portion 34 similar to the flange portion 32 is formed at the other end of the bobbin body 26 in the penetrating direction. Furthermore, a notch portion 36 opened at a part of the outer periphery of the flange portion 32 is formed in a portion of the flange portion 32 corresponding to the one side wall 30.

  The bobbin 24 having the above configuration is fitted into the teeth 20 so that the teeth 20 penetrate the inside. The outer core 16 described above is attached to the inner core 14 with these bobbins 24 attached to the teeth 20. By attaching the outer core 16 to the inner core 14, the bobbin 24 is prevented from falling off the teeth 20.

  In addition, each bobbin 24 is provided with a winding 40. By attaching the bobbin 24 with the winding 40 to the teeth 20, the teeth 20 are insulated from the teeth 20. Winding 40 is applied to the outer periphery of the. In the present embodiment, the winding 40 is formed of a so-called “flat wire” having a substantially rectangular cross section. The winding 40 applied to each bobbin 24 will be described for each part. As shown in FIGS. 2 and 6, the winding 40 includes a winding body 42 having a substantially C-shape when viewed from the front. The winding body 42 is formed so that the outer peripheral direction of the bobbin body 26 is the longitudinal direction so that both ends are located on the side of the one vertical wall 28. Further, these winding main bodies 42 are arranged along the width direction of the vertical wall 28 (that is, the penetration direction of the bobbin 24 and the protruding direction of the teeth 20 when the bobbin 24 is attached to the teeth 20). Are arranged next to each other.

  Among these winding main bodies 42, one end in the longitudinal direction of the winding main body 42 excluding the winding main body 42 closest to the flange portion 34 is a curved portion 44. A rearrangement portion 46 is formed continuously from these curved portions 44. As shown in FIG. 1A, the rearrangement unit 46 is inclined by a predetermined angle θ1 in one direction in the width direction of the vertical wall 28 with respect to one direction in the longitudinal direction of the vertical wall 28. An end portion of the row changing portion 46 opposite to the curved portion 44 is connected to the other end of the next winding body 42 adjacent to the flange portion 34 side with respect to the winding body 42 in the row on the curved portion 44 side. ing.

  Further, as shown in FIG. 1A, the formation position of the curved portion 44 formed at one end of each winding body 42 excluding the winding body 42 located closest to the flange portion 34 is a vertical wall. 28 is gradually displaced toward one side in the longitudinal direction of the vertical wall 28, and is directed to one side in the longitudinal direction of the vertical wall 28 with respect to the width direction of the vertical wall 28. Each curved portion 44 is set so as to be positioned on a linear curved portion setting line L1 inclined by an angle θ2.

  On the other hand, as shown in FIG. 2E and FIG. 6, a layer changing portion 48 is formed continuously from one end in the longitudinal direction of the winding body 42 closest to the flange portion 34. The layer changing portion 48 is bent or curved toward one side around the axis with the width direction of the vertical wall 28 as the axial direction with respect to the winding body 42, and the end on the opposite side to the winding body 42 is The wire 40 is displaced to the outside of the bobbin 24 by the thickness of the rectangular wire constituting the winding 40.

  As shown in FIGS. 3 and 7, a winding main body 52 is provided on the opposite side of the winding main body 42 from the bobbin main body 26 (outside perpendicular to the penetrating direction of the bobbin 24). ing. These winding main bodies 52 are formed in a substantially C shape whose outer peripheral shape is larger than that of the winding main body 42, and both ends thereof are located on the one vertical wall 28 side like the winding main body 42. The winding main bodies 52 are also provided side by side so as to form a row along the width direction of the vertical wall 28, similarly to the winding main body 42.

  Of these winding bodies 52, one end in the longitudinal direction of the winding body 52 excluding the winding body 52 closest to the flange portion 32 is a curved portion 54. A rearrangement portion 56 is formed continuously from these curved portions 54. The rearrangement portion 56 is inclined at a predetermined angle θ3 toward the other widthwise direction of the vertical wall 28 with respect to the other longitudinal direction of the vertical wall 28 and is opposite to the curved portion 54 of the rearrangement portion 56. Is connected to the other end of the winding body 52 in the next row adjacent to the winding body 52 in the row on the curved portion 54 side on the flange portion 32 side.

  Further, as shown in FIG. 1B, the formation position of the curved portion 54 formed at one end of each winding main body 52 excluding the winding main body 52 positioned closest to the flange portion 32 is the most flanged. It is set on one side in the longitudinal direction of the vertical wall 28 with respect to the curved portion 44 located on the side of the portion 32. In addition, each curved portion 54 is gradually displaced in one longitudinal direction of each vertical wall 28 in the same manner as the curved portion 44 described above, and is directed toward the other longitudinal direction of the vertical wall 28 with respect to the width direction of the vertical wall 28. The curved portions 54 are set so as to be positioned on a linear curved portion setting line L2 inclined by a predetermined angle θ4 set based on a value half of the angle θ3.

  On the other hand, as shown in FIG. 2D, a layer changing portion 58 is formed continuously from one end in the longitudinal direction of the winding body 52 closest to the flange portion 32. The layer changing portion 58 is bent or curved toward one side around the axis whose axial direction is the width direction of the vertical wall 28 with respect to the winding body 52, and an end portion on the opposite side to the winding body 52 is The wire 40 is displaced to the outside of the bobbin 24 by the thickness of the rectangular wire constituting the winding 40.

  As shown in FIGS. 3 and 8, a winding body 62 is provided on the opposite side of the winding body 52 from the bobbin body 26 (outside in a direction orthogonal to the penetrating direction of the bobbin 24). ing. These winding main bodies 62 are formed in a substantially C shape whose outer peripheral shape is larger than that of the winding main body 52, and both ends of the winding main bodies 62 are on one vertical wall 28 side like the winding main bodies 42 and 52. positioned. The winding main bodies 62 are also provided side by side so as to form a row along the width direction of the vertical wall 28, similarly to the winding main body 42 and the winding main body 52.

  Among these winding main bodies 62, one end in the longitudinal direction of the winding main body 62 excluding the flange portion 34 side is a curved portion 64. A rearrangement portion 66 is continuously formed from these music portions 64. As shown in FIG. 1C, the rearrangement unit 66 is inclined by a predetermined angle θ5 in one direction in the width direction of the vertical wall 28 with respect to one direction in the longitudinal direction of the vertical wall 28. The end of the row changing portion 66 opposite to the curved portion 64 is connected to the other end of the next row of winding main bodies 62 adjacent to the side of the flange portion 34 with respect to the winding main body 62 of the row on the bent portion 64 side. ing.

  Further, as shown in FIG. 1C, the formation position of the curved portion 64 formed at one end of each winding main body 62 excluding the winding main body 62 positioned closest to the flange portion 34 is the most flanged. It is set on one side in the longitudinal direction of the vertical wall 28 with respect to the curved portion 54 located on the side of the portion 34. Further, each curved portion 54 is gradually displaced in one longitudinal direction of each vertical wall 28 in the same manner as the curved portion 44 and the curved portion 54 described above, and the longitudinal direction of the vertical wall 28 with respect to the width direction of the vertical wall 28. Each of the curved portions 64 is set so as to be positioned on a linear curved portion setting line L3 that is inclined by a predetermined angle θ6 set based on a value half of the angle θ5 toward one direction. .

  On the other hand, a connecting portion 68 is continuously formed from one end in the longitudinal direction of the winding body 62 closest to the flange portion 34, and is connected to the winding 40 applied to another bobbin 24 via the connecting portion 68. ing.

(Outline of winding system 80)
Next, an outline of the configuration of a winding system 80 for applying the winding 40 to the bobbin 24 will be described with reference to FIG.

  The winding system 80 includes a feeding mechanism 82 in which a plurality of bobbins 24 are set in a row, a winding portion 84, and an inner core 14, and the set inner core 14 around the center of the circular hole 18 described above. The core support part 86 to be rotated is provided.

  The feed mechanism 82 includes a slide portion 88. The slide part 88 has a structure that can slide in a direction orthogonal to the axial direction of the core 12 in a state where the slide part 88 is supported by a core support part 86 described later. In addition, the slide portion 88 is provided with a plurality of supports 90. The supports 90 are provided in a row in the slide direction of the slide portion 88. The bobbins 24 are supported on these supports 90.

  The feeding mechanism 82 includes a bobbin displacement mechanism (not shown). The bobbin displacement mechanism corresponds to one of the supports 90 that has reached a predetermined position by sliding, and the bobbin 24 attached to the support 90 is connected to the distal end side of the support 90. The bobbin 24 can be detached from the support body 90 by sliding to the support body 90, and the bobbin 24 removed from the support body 90 can be attached to the support body 90 again.

  A pair of formers 92 is provided on the side of the support 90. These formers 92 are arranged so as to face each other along the penetration direction of the bobbin 24. Further, these formers 92 are formed so that the distance between the formers 92 gradually decreases toward the bobbin 24 held in a state of being removed from the support 90 by the bobbin displacement mechanism. The conductor 94 is guided to the bobbin 24. The conductive wire 94 and the winding 40 are the same. However, in describing the present embodiment, the winding around the bobbin 24 including the connecting portion 68 is wound around the winding 40 and the bobbin 24. For convenience, the previous state is identified as a conductor 94.

  On the other hand, the winding portion 84 described above includes an arm-shaped flyer 96. The flyer 96 is provided so that the tip end side rotates around the bobbin 24 removed by the bobbin displacing mechanism from the one support body 90 that has almost reached the predetermined position. The flyer 96 is provided with one or more induction pulleys 98. A conductive wire 94 drawn out from a conductive wire storage portion in which a conductive wire 94 for forming the winding 40 is stored in a wound state is wound around these induction pulleys 98.

  On the other hand, the core support part 86 is provided corresponding to the position where the slide part 88 slides by a predetermined amount. The core support portion 86 is provided so that any one of the teeth 20 faces the support body 90 that supports the bobbin 24 along the radial direction of the supported core 12. The core support portion 86 is configured such that the bobbin 24 can be fitted into the teeth 20 as it is by detaching the bobbin 24 supported by the support 90 from the support 90.

<Operation and effect of the present embodiment>
Next, the operation and effect of the present embodiment will be described through the description of the winding method as the rotating electrical machine manufacturing method according to the present embodiment.

  In the winding method according to the present embodiment, first, the bobbin 24 is set on the support 90 in the conveying step. Subsequently, the slide part 88 is moved to the position corresponding to the bobbin displacement mechanism with the support body 90 positioned closest to the core support part 86.

  Next, in the setting step, the bobbin displacement mechanism is activated, and the bobbin 24 moved to a position corresponding to the bobbin displacement mechanism is slid in the direction from the proximal end side to the distal end side of the support 90. Thereby, the bobbin 24 is removed from the support body 90, and the bobbin 24 is moved to a winding position where the winding by the flyer 96 can be performed (that is, the bobbin 24 is set at the winding position).

  Next, a winding process is performed. In the winding process, first, the winding portion 84 is operated. When the winding portion 84 is activated, the flyer 96 is rotated. The flyer 96 has its tip end rotated around the bobbin 24 at the winding position. Therefore, the conductive wire 94 that has passed through the rotating flyer 96 is guided by the former 92 and wound around the outer periphery of the bobbin 24. A winding 40 is applied to the bobbin 24.

  When the winding 40 is applied, as shown in FIG. 2A, first, the conductive wire 94 that has passed through the notch 36 of the flange portion 32 from the outside of the bobbin 24 is in the first row in the first row. The winding body 42 is wound around the bobbin body 26. As shown in FIG. 2B, one end of the winding main body 42 in the first row and the first row reaches one vertical wall 28 constituting the bobbin main body 26 and further reaches the vicinity of the notch 36. When the flyer 96 is rotated until this occurs, for example, a bobbin displacement mechanism is operated, and the bobbin 24 is displaced toward the support 90 by approximately the width dimension of the conducting wire 94. Due to the displacement of the bobbin 24, a curved portion 44 is formed at one end of the winding main body 42 in the first row and the first row, and a rearrangement portion 46 is further formed.

  The winding main body 42 of the first layer, the second row continues from the end opposite to the curved portion 44 of the rearrangement portion 46 as the flyer 96 rotates, and the winding main body 42 of the first layer, first row. Is wound around the bobbin main body 26 with almost no gap. As shown in FIG. 2C, one end of the winding body 42 in the first layer and the second row reaches one vertical wall 28 constituting the bobbin body 26, and further, in the vicinity of the notch 36. When the flyer 96 rotates until it reaches, the bobbin displacement mechanism is actuated earlier by a preset timing than the timing at which the curved portion 44 is formed at one end of the winding body 42 in the first layer, first row, The bobbin 24 is displaced toward the support 90 by the width dimension of the conducting wire 94. Due to the displacement of the bobbin 24, a curved portion 44 is formed at one end of the winding body 42 in the first layer and the second row, and further, a rearrangement portion 46 is formed.

  Thereafter, as shown in FIG. 2D, as in the past, the first layer, the third row, the first layer, the fourth row, and in the present embodiment, the furthest flange portion 34 side. The winding main body 42 in the fifth row located in the first layer is sequentially wound around the bobbin main body 26. As shown in FIG. 2E, the first layer immediately before the first layer fifth row winding body 42 reaches the curved portion 44 of the first layer fourth row winding body 42. A layer changing portion 48 is formed at one end of the fifth-row winding body 42, and the second-layer first-row winding body 52 is positioned above the first-layer fifth-row winding body 42 (bobbin). It is wound around the opposite side of the main body 26).

  As shown in FIG. 3A, one end of the winding main body 52 in the first row of the second layer reaches one vertical wall 28 constituting the bobbin main body 26, and further, in the vicinity of the layer changing portion 48. When the flyer 96 rotates until it reaches, for example, a bobbin displacement mechanism is operated, and the bobbin 24 is displaced to the side opposite to the support body 90 by approximately the width dimension of the conducting wire 94. Due to the displacement of the bobbin 24, one end of the second-layer first-row winding body 52 on one side of the vertical wall 28 with respect to the curved portion 44 formed on the first-layer fourth-row winding body 52. A curved portion 54 is formed, and a rearrangement portion 56 is further formed.

  The winding main body 52 in the second layer, the second row continues from the end opposite to the curved portion 54 of the rearrangement portion 56 as the flyer 96 rotates, and the winding main body 52 in the second layer, first row. Is wound on the winding main body 42 in the fourth row of the first layer in a state where there is substantially no gap. As shown in FIG. 3B, when one end of the winding body 52 in the second layer second row reaches one vertical wall 28 constituting the bobbin body 26, the second layer first row. The bobbin displacement mechanism is actuated earlier than the timing at which the curved portion 54 is formed at one end of the winding main body 52 by a preset timing, and is moved to the side opposite to the support 90 by approximately the width dimension of the conducting wire 94. The bobbin 24 is displaced. Due to the displacement of the bobbin 24, a curved portion 54 is formed at one end of the winding main body 52 in the second row and the second row, and a rearrangement portion 46 is further formed.

  Thereafter, as shown in FIG. 3C, the second layer, the third row, the second layer, the fourth row, and in the present embodiment, the furthest flange portion 32 side, as in the past. The winding main body 52 in the second row located in the fifth row is sequentially wound around the bobbin main body 26. As shown in FIG. 3D, the second layer immediately before the second layer fifth row winding body 52 reaches the curved portion 54 of the second layer fourth row winding body 52. A layer changing portion 58 is formed at one end of the fifth row of winding main bodies 52, and the third layer first row of winding main bodies 62 are above the second layer of the fifth row of winding main bodies 52 (first It is wound around the opposite side of the winding body 42 of the first layer.

  As shown in FIG. 4A, one end of the winding main body 62 in the first row of the third layer reaches one vertical wall 28 constituting the bobbin main body 26, and further, in the vicinity of the layer changing portion 58. When the flyer 96 rotates until one end of the winding main body 62 reaches, for example, a bobbin displacement mechanism is operated, and the bobbin 24 is displaced toward the support body 90 by approximately the width dimension of the conducting wire 94. Due to the displacement of the bobbin 24, the third-layer first-row winding body 62 on one side in the longitudinal direction of the vertical wall 28 with respect to the curved portion 54 formed in the second-layer fourth-row winding body 52. A curved portion 64 is formed at one end of the first row, and a rearrangement portion 66 is further formed.

  As the flyer 96 rotates from the end opposite to the curved portion 64 of the row changing portion 66, the third layer second row winding body 62 continues to the third layer first row winding body 62. Is wound on the winding main body 52 in the second layer and the fourth row with substantially no gap. As shown in FIG. 4B, when one end of the third-layer second-row winding body 62 reaches one vertical wall 28 constituting the bobbin body 26, the third-layer first-row. The bobbin displacement mechanism is actuated earlier than the timing at which the curved portion 64 is formed at one end of the winding main body 62 by a preset timing, and the bobbin 24 is moved to the support 90 side by approximately the width dimension of the conducting wire 94. Be displaced. Due to the displacement of the bobbin 24, a curved portion 64 is formed at one end of the winding main body 62 in the second row of the third layer, and further, a rearrangement portion 66 is formed.

  Thereafter, as shown in FIG. 4C, the third layer, the third row, the third layer, the fourth row, and in the present embodiment, on the side closest to the flange portion 34, as before. The third-layer fifth-row winding body 62 that is positioned is sequentially wound around the bobbin body 26. As shown in FIG. 4D, the conducting wire 94 continuous from one end of the winding main body 62 in the fifth layer of the third layer is a connecting portion 68, and the winding 40 applied to the next bobbin 24 is connected to the winding 40. Connected.

  When the winding of the winding 40 around the bobbin 24 is completed as described above, the mounting process is performed next. In the mounting process, the bobbin displacement mechanism is operated and the bobbin 24 is fitted into the support 90 again. Next, the slide portion 88 slides toward the core support portion 86 side. The slide part 88 moves the support body 90 adjacent on the opposite side of the core support part 86 to the bobbin 24 to which the winding is applied to a position corresponding to the bobbin displacement mechanism.

  In this state, the mounting process is temporarily interrupted, and the setting process, the winding process, and the pressing process are performed again on the bobbin 24 that has moved to a position corresponding to the bobbin displacement mechanism. As a result, winding is also applied to the subsequent bobbin 24. When the winding of the subsequent bobbin 24 is completed, the mounting process is resumed, and the slide portion 88 is slid toward the core support portion 86 side.

  By repeating the above steps, when the support body 90 that supports the bobbin 24 on which the winding is applied faces the teeth 20 of the core 12 supported by the core support portion 86, the bobbin 24 that faces the teeth 20 supports. Removed from body 90. Further, the bobbin 24 removed from the support 90 is fitted into the opposing teeth 20. Further, when the succeeding bobbin 24 moves to the core support part 86 side by the movement of the slide part 88, the core support part 86 operates and the core 12 rotates. Thereby, the predetermined teeth 20 in which the bobbin 24 is not fitted are opposed to the support 90. In this state, the bobbin 24 is similarly fitted into the teeth 20.

  When the bobbins 24 are fitted into all the teeth 20 in this way, the outer core 16 is fitted into the inner core 14 to form the core 12. Here, in the present embodiment, winding is performed in the above-described process, so that at least all of the bobbins 24 or the conductors 94 wound around the predetermined bobbins 24 are connected without disconnecting the connecting portions 68. Is continuous through. For this reason, after fitting the outer core 16 into the inner core 14, it is not necessary to connect the predetermined conductive wires 94 to each other (for example, to attach a bus bar). Therefore, the cost required for the connecting process of the conducting wire 94 can be reduced.

  And since the connection process of the conducting wire 94 becomes unnecessary, the manufacturing process of the core 12 can be speeded up. Thereby, the productivity of the core 12 is improved, and as a result, the productivity of the motor 10 is improved. Furthermore, by eliminating the connecting step of the conducting wire 94 in this way, it contributes to space saving such that the work space required for the connecting step of the conducting wire 94 can be used for other steps.

  By the way, in the present embodiment, as described above, the column changing portion 46 is formed on one end side of the winding main body 42 in each row of the first layer excluding the winding main body 42 in the first layer fifth row. The bent portion 44 formed at one end of the winding main body 42 is set on a bent portion setting line L1 inclined by a predetermined angle θ2 with respect to the longitudinal direction of the vertical wall 28 with respect to the width direction of the vertical wall 28. Is done. Moreover, as described above, the angle θ2 is set based on a value that is ½ of the inclination angle θ1 of the rearrangement unit 46. For this reason, in the present embodiment, the width of the rearrangement portion 46 is not made smaller than that of the winding main body 42, and between the adjacent winding main bodies 42 or between the adjacent rearrangement portions 46. The winding 40 can be applied without generating a large gap therebetween.

  Similarly, the second-layer winding main body 52, the curved portion 54, and the rearrangement portion 56, and the third-layer winding main body 62, the curved portion 64, and the rearrangement portion 66 are similar to the rearrangement portions 56 and 66. Without making the width dimension smaller than that of the winding main bodies 52 and 62, and between each adjacent winding main body 52 (each winding main body 62) and each adjacent column changing section 56 (each column changing section 66). The winding 40 can be applied without generating a large gap between them.

  As described above, in the present embodiment, the winding 40 can be applied without a gap while the width of the rearrangement portions 46, 56, and 66 remains the same as the width of the winding main bodies 42, 52, and 62. The so-called space factor is improved. For example, if the same number of turns is used, the bobbin 24 can be downsized compared to the conventional case. If the same size bobbin 24 is used, the number of turns of the winding 40 is increased. Efficiency can be improved.

  Further, in the present embodiment, the curved portions 44, 54, 64 and the row changing portions 46, 56, 66 are set on the side of the vertical wall 28 having a longer longitudinal dimension than the horizontal wall 30. For this reason, more curved parts 44, 54, and 64 and rearrangement parts 46, 56, and 66 are set on the side of the horizontal wall 30 than the curved parts 44, 54, and 64 and rearrangement parts 46, 56, and 66 are set. As a result, the number of rows of the winding main bodies 42, 52 and 62 can be set large.

  Furthermore, in the present embodiment, as described above, the curve setting lines L1, L2, and L3 are linear, and the inclination angles θ2, θ4, and θ6 of the curve setting lines L1, L2, and L3 are as described above. Thus, based on the value of the half of the inclination angle θ1, θ3, θ5 of the rearrangement portions 46, 56, 66 with respect to the winding main bodies 42, 52, 62 with the curved portions 44, 54, 64 as the center. Is set. For this reason, the position of each music part 44,54,64 is set, that is, in this embodiment, the bobbin displacement for forming each music part 44,54,64 and each column changing part 46,56,66. Setting of the operation timing of the mechanism (that is, control of the bobbin displacement mechanism) is facilitated.

  In addition, this Embodiment was the structure by which the winding 40 is given to the outer peripheral part of the teeth 20 by mounting | wearing the teeth 20 with the bobbin 24 which gave the winding 40 to the outer peripheral part. However, the present invention is not limited to such a configuration, and the winding 40 may be applied to the outer peripheral portion of the tooth 20 as a result.

  For example, it is good also as a structure which provides the coil | winding 40 to the outer peripheral part of the teeth 20 in the state with which insulating members, such as an insulator, were mounted | worn on the outer peripheral part of the teeth 20, or the teeth 20 to which insulating powder coating etc. were given. It is good also as a structure which gives the coil | winding 40 to the outer peripheral part. Further, if the insulation by the insulating film or the like applied to the winding 40 itself is ensured for a long time, an insulating member such as a bobbin 24 or an insulator for insulating between the winding 40 and the tooth 20, It is good also as a structure which provides the coil | winding 40 to the teeth 20, without providing insulating powder coating etc. in the teeth 20. FIG.

It is a figure which shows the state of rearrangement of the winding in the rotary electric machine which concerns on one embodiment of this invention, (A) shows the 1st layer winding, (B) shows the 2nd layer winding. (C) shows the third layer winding. The figure which shows the state in which the winding of the 1st layer is given, (A) shows the winding start state, and (B) is the state where the winding of the 1st row was completed and rearrangement was made (C) shows a state in which the winding of the second row is completed and rearrangement is made, and (D) is a state in which the winding of the fourth row is finished and rearrangement is made. (E) shows a state in which the first layer winding has been completed and layer switching has been performed. It is a figure which shows the state in which the winding of the 2nd layer is given, (A) shows the state where the winding of the 1st row was completed, and rearrangement was made, and (B) was the 2nd row. (C) shows a state in which the fourth row of windings is finished and a rearrangement is made, and (D) shows the second layer. This shows a state in which the winding is completed and layer switching is performed. It is a figure which shows the state in which the winding of the 3rd layer is given, (A) shows the state where the winding of the 1st row was completed and rearrangement was made, and (B) was the 2nd row. (C) shows a state in which the fourth row of windings is finished and a rearrangement is made, and (D) shows the third layer. The state where the winding of is finished is shown. It is a perspective view of the bobbin applied to the rotary electric machine which concerns on one embodiment of this invention. It is a perspective view of the bobbin in the state where the winding of the 1st layer was completed. It is a perspective view of the bobbin in the state where the winding of the 2nd layer was completed. It is a perspective view of the bobbin in the state where the winding of the 3rd layer was completed. It is a top view of the armature of the rotary electric machine which concerns on one embodiment of this invention. It is a figure which shows the outline of the winding system for winding a bobbin of the rotary electric machine which concerns on one embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Motor (rotary electric machine), 12 ... Core (armature), 20 ... Teeth, 24 ... Bobbin, 40 ... Winding, 42, 52, 62 ... Winding body , 44, 54, 64... Music part, 46, 56, 66... Rearrangement part, L 1, L 2, L 3.

Claims (5)

A core with a plurality of teeth projecting radially outward from the outer periphery,
Winding wound around the outer periphery of the teeth around an axis having the protruding direction as an axial direction in a state of being arranged in the protruding direction while being rearranged in the protruding direction of the teeth every turn;
A rotating electric machine having an armature including
A plurality of substantially C-shaped winding bodies each constituting one turn of the winding and arranged in the protruding direction at the outer periphery;
One end of the one winding body is bent to the other end of the other winding body from a curved portion connected to one end of the winding bodies adjacent to each other in the protruding direction. A rearrangement unit connected to the end,
Further, each curved portion connected to one end of each of the plurality of winding main bodies arranged in the projecting direction is inclined to the outer peripheral direction of the teeth with respect to the projecting direction. Set on the setting line,
Rotating electric machine characterized by that.   2. The rotating electrical machine according to claim 1, wherein an inclination of the curved portion setting line is set for the winding body based on an inclination angle of the rearrangement portion connected to one end of the winding body.   3. The rotating electrical machine according to claim 1, wherein the curved portion setting line is set in a straight line inclined at a constant angle with respect to an outer peripheral direction of the teeth with respect to a protruding direction of the teeth. .   The outer peripheral shape is a polygonal shape that is formed into a cylindrical shape that can be fitted into the teeth, and includes a bobbin that is provided with the winding on the outer peripheral portion, and is the longest of the sides of the polygon that is the outer peripheral shape of the bobbin. The rotating electrical machine according to any one of claims 1 to 3, wherein the rearrangement unit is set in a portion serving as a side. A core with a plurality of teeth projecting radially outward from the outer periphery,
A winding wound around the outer periphery of the tooth around an axis whose axial direction is the protruding direction of the tooth;
A method of manufacturing a rotating electrical machine for manufacturing a rotating electrical machine including an armature including
The teeth are arranged so that the windings are arranged in the projecting direction by rearranging the coils already wound around the outer periphery of the teeth in the projecting direction and further winding the coils on the outer periphery of the teeth. The winding is wound around the outer periphery of each of the windings, and the position of the curved portion formed in each winding in each row is inclined in the outer circumferential direction of the teeth with respect to the protruding direction each time the row is rearranged in the protruding direction. Set on the selected music section setting line,
The manufacturing method of the rotary electric machine characterized by the above-mentioned.

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