JP2006067773A - Manufacturing method for armature, manufacturing method for motor, and that armature - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for armature which can enhance the productivity while achieving higher space factor and downsizing. <P>SOLUTION: The manufacturing method for an armature, which is equipped with a core where a plurality of split core members 20 in each of which at least two teeth 13 are coupled with each other by coupling parts 21 and an annular part 22 are integrated, has a first winding step for winding a coil 15 that becomes the lowermost layer from the winding start end on each of the two teeth 13 provided in the split core member 20, and a jumper wire step for transferring the winding finish ends in the first step of each tooth 13 each to the other teeth 13. Then, it has a second winding step for winding the coil 15 on each tooth 13, with the coil 15 transferred in the jumper wire step as the winding start end, a junction step for joining the winding start end in the first winding step and the winding finish end in the second step with each other, and an assembly step for assembling a plurality of split cores 20 where coils 15 are wound so as to integrate them. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an armature manufacturing method, a motor manufacturing method, and an armature.

  2. Description of the Related Art Conventionally, an armature in a rotating electrical machine (such as a motor) has a core in which a plurality of teeth around which windings are wound are provided radially. In the armature having such a core, various configurations have been proposed in order to increase the space factor. For example, a plurality of divided core members having at least one tooth and an annular portion formed on the radially inner side of the tooth are proposed. There are those provided with a core configured by combining (see, for example, Patent Documents 1 to 5).

If it is the above cores, after winding a coil | winding around the teeth of each division | segmentation core member, those division | segmentation core members can be assembled | attached and integrated. For this reason, a winding can be wound around each tooth without being disturbed by adjacent teeth, and an armature with a high space factor can be formed.
Japanese Patent Laid-Open No. 9-46941 Japanese Utility Model Publication No. 63-187545 JP-A-9-322441 JP 2002-291183 A JP 2002-369421 A

  However, in the motor manufacturing process, the armature (core around which the winding is wound) and the commutator configured as described above are press-fitted into the rotating shaft, and the end of the winding wound around each tooth is connected to the commutator. It is necessary to hold the windings so that they cannot be unwound until each segment is connected. However, in general, windings (for example, copper wires) wound around the core teeth are soft and cannot retain their own shape. In other words, it was difficult to grasp the end of the winding when connecting to the segment, and the productivity was poor in the process of automated assembly. Alternatively, when a mechanism for holding the tip of the winding is used, there is a problem in that the work space is required or the shape is restricted, which increases the size of the motor.

  In general, the winding start end portion or winding end end portion of the winding wound around the core is held on the outer peripheral side of the tooth, and from the outer peripheral side to the inner peripheral side in order to connect with the commutator. The winding will crawl over the coil end. In this case, since the brush holder is provided so as not to interfere with the winding passed from the outer peripheral side to the inner peripheral side of the core, there is a problem that the motor is enlarged in the axial direction. Further, when a mechanism for holding the winding wire passed from the outer peripheral side to the inner peripheral side is provided, there is a problem that the motor is increased in size in the axial direction due to the restriction of the coil end height.

  The present invention has been made in view of such circumstances, and its object is to provide an armature manufacturing method, a motor manufacturing method, and a motor manufacturing method capable of improving productivity while achieving high space and miniaturization. To provide armature.

  In order to solve the above problems, the invention described in claim 1 is a method of manufacturing an armature including a core in which a plurality of divided core members each having at least two teeth connected by a connecting member are assembled and integrated. A first winding step of winding the lowermost winding from the winding start end portion around the two teeth provided on the split core member, and the first winding step of each of the teeth And a second winding step in which the winding is wound around each of the teeth using the winding passed through the connecting wire step as a winding start end. And a step of joining the winding start end portion in the first winding step and the winding end end portion in the second step, and assembling the plurality of divided core members wound with the winding together Assembly process And it is required to.

  Invention of Claim 2 is a manufacturing method of the armature provided with the core by which the some division | segmentation core member by which the at least 2 teeth were connected by the connection member was assembled | attached, and was integrated, Comprising: The said division | segmentation core member A first winding step of winding the lowermost winding from the winding start end in the same direction as viewed from one outer peripheral side of the two teeth provided on the first tooth, and the first of each of the teeth In the winding step, the winding end ends cross each other and cross over to the other teeth, and the windings wound around each of the teeth are wound using the winding passed in the connecting wire step as a winding start end. A second winding step, a joining step of joining the winding start end in the first winding step and the winding end end in the second step, and the plurality of divisions in which the winding is wound Assemble the core member And summarized in that with the assembly step of.

  According to a third aspect of the present invention, in the armature manufacturing method according to the second aspect, the winding of the winding around the teeth of each of the divided core members is performed while the teeth are held by a jig and rotated. The gist is that the winding is performed.

  The invention according to claim 4 is a method of manufacturing an armature including a core in which a plurality of divided core members in which at least two teeth are connected by a connecting member are assembled and integrated. A first winding step of winding a winding that is a lowermost layer from a winding start end portion in a different direction as viewed from one outer peripheral side of the two teeth provided on the first tooth, and the first winding of each of the teeth In the winding process, the winding end ends are kept parallel to each other, and the winding wire is wound around each of the teeth using the winding passed through the connecting wire process as a winding start end. A second winding step, a joining step of joining the winding start end in the first winding step and the winding end end in the second step, and the plurality of divisions in which the winding is wound Assembling the core member And summarized in that with the assembly step of reduction.

  According to a fifth aspect of the present invention, in the armature manufacturing method according to any one of the first to fourth aspects of the present invention, in the first winding step, the winding is from the outer peripheral side to the inner peripheral side of each tooth. In the second winding step, the winding that is the uppermost layer is wound from the inner peripheral side of each tooth toward the outer peripheral side.

  The invention according to claim 6 is a method of manufacturing an armature including a core in which a plurality of divided core members in which at least two teeth are connected by a connecting member are assembled and integrated. A crossover step in which the ends of the windings are respectively locked to the outer peripheral sides of the two teeth provided in the cross section and the windings are passed from the inner peripheral side of each tooth to the other teeth, and the crossover step is performed. A winding step of winding the winding around each of the teeth as a winding start end, and a joining step of joining the end in the crossover step and the winding end in the winding step; And having an assembly step of assembling and integrating the plurality of divided core members around which the windings are wound.

  Invention of Claim 7 has the cutting process which cut | disconnects the coil | winding passed between the said 2 teeth in the manufacturing method of the armature of any one of Claims 1-6. The gist.

  The invention according to claim 8 is the armature manufacturing method according to claim 7, wherein the armature includes a commutator including a contact portion and a contacted portion held against the core. And before the said cutting process, the said commutator is assembled | attached with respect to the said core after the said connection process which electrically connects and fixes the said passed winding to the said to-be-contacted part, and the said cutting process And having an assembly connection step of electrically connecting the contact portion to the contacted portion.

  According to the ninth aspect of the present invention, there is provided a core in which a plurality of divided core members in which at least two teeth are connected by a connecting member are assembled and integrated, a contacted portion held against the core, and a contact A method of manufacturing an armature including a commutator including a portion, wherein a winding that is a lowermost layer is wound around each of the two teeth provided on the split core member from a winding start end portion. A winding step, and then a crossover step in which each end of the winding in the first winding step of each of the teeth is passed to the other teeth, and then winding the winding passed in the crossover step. A second winding step of winding a winding around each of the teeth as a starting end, and then a connecting step of electrically connecting and fixing the winding passed to the contacted portion; Passed between the two teeth A cutting step of cutting a wire, an assembly step of assembling and integrating the plurality of split core members wound with windings, and then assembling the commutator to the core An assembly connection step for electrically connecting the contacted portion to the contacted portion, and a winding start end in the first winding step and a winding in the second step at a stage after the second winding step. The gist of the present invention is to have a joining step of joining the end portion.

  According to a tenth aspect of the present invention, in the armature manufacturing method according to the eighth or ninth aspect, before the connecting step, a connected contacted portion in a state where a plurality of the contacted portions are connected to the core. The gist of the present invention is to include a connected contacted part fixing step for holding and a contacted part dividing step for dividing the connected contacted part to form the contacted part after the connecting step.

  The invention according to claim 11 is arranged such that the armature formed by the manufacturing method according to any one of claims 1 to 10 is arranged with respect to the stator having permanent magnets having different polarities in the circumferential direction. Is a method of manufacturing a motor configured to supply power to the armature from the anode-side power supply brush and the cathode-side power supply, and is bonded on the outer peripheral side of each tooth in the bonding step, The gist is that the stator is assembled from the opposite side of the portion where the windings of the armature are joined in the axial direction.

  According to a twelfth aspect of the present invention, in the method of manufacturing a motor according to the eleventh aspect, the number of magnetic poles P of the permanent magnet is an even number of 4 or more, and the number of slots N between the teeth is P ± 2 (however, P When N = 4, N = 6), and the number of segments S provided in the commutator is N × (P / 2).

  According to a thirteenth aspect of the present invention, in the motor manufacturing method according to the eleventh or twelfth aspect, the number P of magnetic poles is set to six, the number N of slots is set to eight, and the outer peripheral surface of the commutator is provided. The gist is that the number of segments arranged in the circumferential direction is set to 24.

  The invention according to claim 14 includes a core in which a plurality of teeth are provided radially by combining a plurality of split core members having two teeth opposed to each other by 180 °, a winding wound around the teeth, In the armature including a commutator for rectifying a current to the winding, and a rotating shaft fixed to the core and the commutator, all the divided core members are axial one ends of the teeth. A connecting portion that extends radially inward from a part in the axial direction, avoiding the side, and an annular portion that is formed at the distal end of the connecting portion and into which the rotating shaft is inserted. In the state where the divided core members are combined, the connecting portion and the annular portion are arranged so that the positions of the teeth in the axial direction of the divided core members coincide with each other. The gist is that the position in the axial direction with respect to the teeth is set to be different for each of the divided core members.

(Function)
According to the first aspect of the present invention, since the winding is passed between the two teeth, the winding wound around the core can be connected to the commutator using the connecting wire. For this reason, it is not necessary to hold the end of the winding wound around the core teeth to connect to the commutator, and the armature can be easily manufactured and the productivity is improved. To do.

  Further, in each divided core member, the winding start end portion and winding end end portion are connected. Therefore, when a plurality of divided core members are assembled and integrated, the end portion of the winding is fixed. . That is, after the step of winding the winding around each divided core member (first and second winding step), the assembly step of assembling these divided core members, and the end of the winding wound around each tooth When moving to the step of connecting to the commutator, it is not necessary to hold the end portion so that the winding wound around each divided core member cannot be unwound. For this reason, an armature can be manufactured easily and productivity can be improved.

  Furthermore, since the winding wound in the first winding step is only the lowermost layer in each tooth, the connecting wire (the winding drawn from each tooth to the inner peripheral side) passed between the two teeth is the coil end. It is on the non-commutator side in the axial direction. For this reason, the commutator can be pushed into the core side, and the motor can be reduced in the axial direction. Therefore, the space can be increased by assembling the divided core members after winding the windings, and productivity can be improved while reducing the size of the armature.

  According to the second aspect of the present invention, since the winding is passed between the two teeth, the winding wound around the core can be connected to the commutator using the connecting wire. For this reason, it is not necessary to hold the end of the winding wound around the core teeth to connect to the commutator, and the armature can be easily manufactured and the productivity is improved. To do.

  Further, in each divided core member, the winding start end portion and winding end end portion are connected. Therefore, when a plurality of divided core members are assembled and integrated, the end portion of the winding is fixed. . That is, after the step of winding the winding around each divided core member (first and second winding step), the assembly step of assembling these divided core members, and the end of the winding wound around each tooth When moving to the step of connecting to the commutator, it is not necessary to hold the end portion so that the winding wound around each divided core member cannot be unwound. For this reason, an armature can be manufactured easily and productivity can be improved.

  Furthermore, since the winding wound in the first winding step is only the lowermost layer in each tooth, the connecting wire (the winding drawn from each tooth to the inner peripheral side) passed between the two teeth is the coil end. It is on the non-commutator side in the axial direction. For this reason, the commutator can be pushed into the core side, and the motor can be reduced in the axial direction.

  In addition, since the windings passed between the two teeth are crossed, the connecting wire (winding) passed to the two teeth is substantially along the shape of the split core member (tooth). For this reason, it becomes easy to perform the terminal process of a coil | winding in the teeth inner peripheral side, and productivity improves. Therefore, the space can be increased by assembling the divided core members after winding the windings, and productivity can be improved while reducing the size of the armature.

According to the third aspect of the present invention, since the teeth are rotated while being supplied with the windings, the windings are aligned and layered in each tooth.
According to the fourth aspect of the present invention, since the winding is passed between the two teeth, the winding wound around the core can be connected to the commutator using the connecting wire. For this reason, it is not necessary to hold the end of the winding wound around the core teeth to connect to the commutator, and the armature can be easily manufactured and the productivity is improved. To do.

  Further, in each divided core member, the winding start end portion and winding end end portion are connected. Therefore, when a plurality of divided core members are assembled and integrated, the end portion of the winding is fixed. . That is, after the step of winding the winding around each divided core member (first and second winding step), the assembly step of assembling these divided core members, and the end of the winding wound around each tooth When moving to the step of connecting to the commutator, it is not necessary to hold the end portion so that the winding wound around each divided core member cannot be unwound. For this reason, an armature can be manufactured easily and productivity can be improved.

  Furthermore, since the winding wound in the first winding step is only the lowermost layer in each tooth, the connecting wire (the winding drawn from each tooth to the inner peripheral side) passed between the two teeth is the coil end. It is on the non-commutator side in the axial direction. For this reason, the commutator can be pushed into the core side, and the motor can be reduced in the axial direction.

  Further, in order to make the windings passed between the two teeth substantially parallel, the connecting wires (windings) passed to the two teeth are substantially along the shape of the split core member (teeth). For this reason, it becomes easy to perform the terminal process of a coil | winding in the teeth inner peripheral side, and productivity improves. Therefore, the space can be increased by assembling the divided core members after winding the windings, and productivity can be improved while reducing the size of the armature.

  According to the fifth aspect of the present invention, the winding start end portion and the winding end end portion of the winding wound by the two teeth are the outer peripheral side of each tooth. For this reason, the connection work (joining process) of two windings can be performed on the outer peripheral side of each tooth, and workability is good.

  According to the sixth aspect of the present invention, since the winding is passed between the two teeth, the winding wound around the core can be connected to the commutator using this connecting wire. For this reason, it is not necessary to hold the end of the winding wound around the core teeth to connect to the commutator, and the armature can be easily manufactured and the productivity is improved. To do.

  Further, in each divided core member, the end portion that is the winding start position and the winding end end portion are connected. Therefore, when a plurality of divided core members are assembled and integrated, the end portion of the winding is fixed. ing. That is, after the step of winding the winding around each divided core member (winding step), the assembly step of assembling these divided core members and the end of the winding wound around each tooth are connected to the commutator. When moving to a process, it is not necessary to hold | maintain the edge part so that the winding wound in each division | segmentation core member may not be unwound. For this reason, an armature can be manufactured easily and productivity can be improved.

  Furthermore, the connecting wire (winding drawn from each tooth to the inner peripheral side) passed between the two teeth is on the side opposite to the commutator in the axial direction from the coil end. For this reason, the commutator can be pushed into the core side, and the motor can be reduced in the axial direction. Therefore, the space can be increased by assembling the divided core members after winding the windings, and productivity can be improved while reducing the size of the armature.

  According to the seventh aspect of the present invention, the winding is drawn from each tooth to the inner peripheral side, the winding is passed between the two teeth, and the winding is wound from above and passed. The winding is cut. For this reason, the winding passed between the two teeth is cut while being held, and can be easily cut without the need for a member or operation for holding.

  According to the invention described in claim 8, before the cutting step, the passed winding is electrically connected and fixed to the contacted portion held with respect to the core in the connecting step. Therefore, after that, even if the winding passed between the two teeth is cut in the cutting step, the end of the winding formed when the cutting is cut is made to the core at the contacted portion (determined position) Can be kept). And then, since the contact portion of the commutator is connected to the contacted portion by assembling the commutator to the core in the assembling and connecting step, particularly work for connecting the end portion of the winding and the commutator Becomes easier (can be omitted) and productivity is improved.

  According to the ninth aspect of the present invention, since the winding is passed between the two teeth, the winding wound around the core can be connected to the commutator using the connecting wire. For this reason, it is not necessary to hold the end of the winding wound around the core teeth to connect to the commutator, and the armature can be easily manufactured and the productivity is improved. To do.

  Further, in each divided core member, the winding start end portion and winding end end portion are connected. Therefore, when a plurality of divided core members are assembled and integrated, the end portion of the winding is fixed. . That is, after the step of winding the winding around each divided core member (first and second winding step), the assembly step of assembling these divided core members, and the end of the winding wound around each tooth When moving to the step of connecting to the commutator, it is not necessary to hold the end portion so that the winding wound around each divided core member cannot be unwound. For this reason, an armature can be manufactured easily and productivity can be improved.

  Furthermore, since the winding wound in the first winding step is only the lowermost layer in each tooth, the connecting wire (the winding drawn from each tooth to the inner peripheral side) passed between the two teeth is the coil end. It is on the non-commutator side in the axial direction. For this reason, the commutator can be pushed into the core side, and the motor can be reduced in the axial direction. Therefore, the space can be increased by assembling the divided core members after winding the windings, and productivity can be improved while reducing the size of the armature.

  Further, the winding is drawn from each tooth to the inner peripheral side, the winding is passed between the two teeth, the winding is wound from above, and the passed winding is cut. For this reason, the winding passed between the two teeth is cut while being held, and can be easily cut without the need for a member or operation for holding.

  Further, in the connecting step, the passed winding is electrically connected and fixed to the contacted part held with respect to the core. Therefore, after that, even if the winding passed between the two teeth is cut in the cutting step, the end of the winding formed when the cutting is cut is made to the core at the contacted portion (determined position) Can be kept). And then, since the contact portion of the commutator is connected to the contacted portion by assembling the commutator to the core in the assembling and connecting step, particularly work for connecting the end portion of the winding and the commutator Becomes easier (can be omitted) and productivity is improved.

  According to the invention described in claim 10, before the connecting step, the connected contacted portion in a state where a plurality of the contacted portions are connected is held with respect to the core in the connected contacted portion fixing step. And after a connection process, a contacted part division | segmentation process WHEREIN: A connection contacted part is divided | segmented and a to-be-contacted part is formed. If it does in this way, the number of parts in a manufacturing process (process which holds a to-be-contacted part in a core) will be reduced, and cost reduction will be attained.

  According to the invention described in claim 11, in the armature, the joint portion of the winding is the outer periphery of the core, and the stator is assembled in the axial direction from the opposite side of the joint portion. For this reason, it is prevented that the joint part of a coil | winding and the permanent magnet of a stator interfere during an assembly | attachment. In addition, by arranging the joint and the permanent magnet so that they do not interfere with each other at the time of rotation, the insulator or the like has a complicated structure for accommodating the joint within the outer diameter of the core, or the motor physique is secured to secure the storage space. There is no need to increase it.

  According to the twelfth aspect of the present invention, it is possible to obtain a motor that has a short-pitch winding coefficient of 0.9 or more and is advantageous in reducing the size and weight and increasing the output. The short-pitch winding coefficient is a coefficient that takes into account the interval between winding sides with respect to the magnetic pole pitch, and is proportional to the output of the motor. That is, the greater the short turn factor, the greater the motor output.

  According to the thirteenth aspect of the present invention, the number of magnetic poles of the permanent magnet is set to 6 and the number of slots is set to 8, so that a 6-pole 8-slot motor is configured. In this case, the combined torque vector of each tooth (ie, slot) of the armature becomes zero, the force in the radial direction of the armature becomes zero, and the force in the radial direction of the armature becomes zero. Vibration of the armature due to the action of force is suppressed.

  According to the fourteenth aspect of the present invention, the surface on which one end side in the axial direction or the connecting portion is not formed is exposed among the radially inner surfaces of the teeth, and is thus wound around the core and thus the teeth. Winding temperature rise can be suppressed. Further, since the connecting portion and the annular portion are formed so as to avoid one end side in the axial direction of the teeth, a concave portion is formed at a position corresponding to the connecting portion and the annular portion on one end side in the axial direction. A part of a bearing or a commutator (including a terminal pin for connecting to a winding) can be accommodated. Therefore, the axial size of the armature (motor) can be reduced. Moreover, since the teeth of the split core member are opposed to each other by 180 °, when the armature manufacturing method according to any one of claims 1 to 9 is used to manufacture the pair of windings, Since the lengths of the passed windings can be made the same, the workability is improved.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of an armature, the manufacturing method of a motor, and an armature which can improve productivity can be provided, aiming at high space and size reduction.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, a brushed DC motor (hereinafter simply referred to as “motor”) 1 as a motor according to the present embodiment includes a stator 2 and an armature (rotor) 3.

  The stator 2 includes a substantially bottomed cylindrical yoke housing 4 and a plurality (six in this embodiment) of permanent magnets 5 arranged and fixed at equal angular intervals on the inner peripheral surface of the yoke housing 4. Yes. An end frame 6 is fixed so as to close the opening of the yoke housing 4, and an anode side power supply brush 7 a and a cathode side power supply brush 7 b are held on the end frame 6. The anode-side power supply brush 7 a and the cathode-side power supply brush 7 b are connected to the power supply terminal 8.

  The armature 3 includes a rotating shaft 9, a core (armature core) 10 fixed to the rotating shaft 9, and a commutator 11 that is also fixed to the rotating shaft 9. A bearing 12a held at the center of the bottom of the yoke housing 4 and a bearing 12b held at the center of the end frame 6 are rotatably held. In this state, the core 10 is disposed so as to face the permanent magnet 5 and surround the periphery.

  A plurality of (eight in the present embodiment) teeth 13 are formed on the core 10 radially about the rotation shaft 9, and a winding 15 is wound around each tooth 13 via a bobbin 14. . Further, a terminal 30 as a contacted portion to which an end portion of the winding 15 wound around the tooth 13 is connected is provided on the end surface of the core 10 on the commutator 11 side.

  The commutator 11 includes a substantially cylindrical insulator 16 and a plurality (24 in this embodiment) of segments 17 disposed on the outer peripheral surface of the insulator 16 at equal angular intervals in the circumferential direction. The anode side power supply brush 7a and the cathode side power supply brush 7b are arranged so as to be in sliding contact with the outer peripheral surface (segment 17).

  Further, on the surface of the commutator 11 on the core side, a short-circuit member 40 that short-circuits a plurality of (three in the present embodiment) segments 17 to have the same potential is provided. Since the motor 1 of the present embodiment has 6 poles and 8 slots, as shown in FIG. 3, every 24 segments 17 arranged at every 8 segments have the same potential.

  Further, the short-circuit member 40 includes a terminal pin 18 as a contact portion that protrudes in the axial direction toward the core 10 and is inserted into the terminal 30. By inserting the terminal pin 18 into the terminal 30 in the axial direction, the terminal pin 18 (short-circuit member 40) and the terminal 30 are electrically connected. That is, the power supplied from the anode-side power supply brush 7 a and the cathode-side power supply brush 7 b is supplied to each winding 15 via each segment 17, the short-circuit member 40 (terminal pin 18), and the terminal 30. That is, when electric power is supplied from the anode-side power supply brush 7 a and the cathode-side power supply brush 7 b, the three segments 17 are set to the same potential by the short-circuit member 40, and current is simultaneously applied to the three windings 15 via the terminal 30. The rotating shaft 9 (armature 3) is rotated with respect to the stator 2.

  As shown in FIG. 4, the core 10 is formed by assembling a plurality (four in the present embodiment) of divided core members 20 in the axial direction. Each (all) divided core member 20 is formed in a radial direction from a part in the axial direction (that is, thinned) by avoiding the two teeth 13 and one axial end side (left side in FIG. 2) of the teeth 13. It has the connection part 21 extended inside, and the cyclic | annular part 22 formed in the front-end | tip of the connection part 21. As shown in FIG. In the present embodiment, the connecting portion 21 and the annular portion 22 constitute a connecting member. In the present embodiment, in each divided core member 20, the two teeth 13 are provided at positions separated by 180 °. The annular portion 22 is formed with a through hole 22a into which the rotary shaft 9 is inserted (inserted). Further, the connecting portion 21 and the annular portion 22 have the axial positions of the teeth 13 corresponding to the divided core members 20 in a state where all the divided core members 20 are combined (integrated) as described later. As described above, the position in the axial direction with respect to the teeth 13 is set to be different for each divided core member 20 (see FIGS. 2 and 14).

  Each of the teeth 13 includes a column portion 13a extending in the radial direction so that the winding 15 is actually wound, a tip portion 13b formed radially outside the column portion 13a, and a radial direction of the column portion 13a. And a rotation restricting portion 13c formed inside. The tip portion 13b extends from the radially outer end of the column portion 13a to both sides in the circumferential direction, and prevents the winding 15 from coming off radially outward. Further, the rotation restricting portion 13c extends from the radially inner end portion of the column portion 13a to both sides in the circumferential direction (the circumferential side end surfaces are spaced at 45 ° intervals) and different divided core members 20 (adjacent teeth 13). Abut each other in the circumferential direction. The teeth 13, that is, the pillar portion 13a, the tip portion 13b, and the rotation restricting portion 13c have constant (same) axial thicknesses.

  Then, the divided core members 20 are combined and integrated so that the teeth 13 are radially arranged and the annular portion 22 is laminated at the coaxial center (see FIGS. 1 and 14). In addition, since the connection part 21 and the annular part 22 are formed in the core 10 comprised in this way avoiding the axial direction one end side (left side in FIG. 2) in the teeth 13, the connection part of an axial direction one end side The recessed part 10a is formed in the position corresponding to 21 and the annular part 22 (refer FIG.2 and FIG.14).

  In the core 10, the windings 15 are wound around the teeth 13 in advance via the bobbins 14 in a state where the four divided core members 20 are independent (before the adjacent teeth 13 are divided). (Concentrated volume). That is, as shown in FIGS. 5A and 5B, the winding 15 is wound around each divided core member 20 via the bobbin 14. The bobbin 14 is made of resin, and functions as an insulator by being inserted between the teeth 13 and the windings 15.

  Each bobbin 14 includes a cylindrical portion 23 around which the winding 15 is wound, an outer peripheral side flange 24 provided at an outer peripheral end portion of the cylindrical portion 23, and an inner peripheral side of the cylindrical portion 23. And an inner periphery side flange portion 25 provided at the end of the inner periphery. And the installation part 26 is provided in the site | part which becomes the said commutator 11 side rather than the connection part 21 and the cyclic | annular part 22 in the inner peripheral side of the inner peripheral side collar part 25. FIG.

  In the outer peripheral side flange 24, two locking grooves 24a in which the ends of the windings 15 are locked are formed. Further, a protruding portion 24b protruding in the axial direction is provided outside the two locking grooves 24a, and a cutout portion 24c cut out from the outer peripheral side is formed inside the two locking grooves 24a. Yes. The inner circumferential flange 25 is formed with two locking grooves 25a for locking the end of the winding 15. The installation portion 26 is formed with two housing recesses 26a that open to the surface on the commutator 11 side. A part of a connection terminal 34 (terminal 30 (see FIG. 12B)) as a connection contacted part is fitted and fixed in the two accommodating recesses 26a from the axial direction. In the present embodiment, the connection terminal 34 is obtained by connecting the two terminals 30 and is in the middle of the manufacturing process (before being divided into two terminals 30). Here, by explaining the shape of the connecting terminal 34, the shape of the terminal 30 will be explained at the same time.

  The connection terminal 34 is formed of a metal plate, and is formed in a substantially U-shape that opens toward the outer peripheral side in a state of being installed on the installation portion 26 (bobbin 14). Specifically, as shown in FIG. 6, each connection terminal 34 includes two side wall portions 31 formed so as to extend in a substantially radial direction, and a connection portion that connects the two side wall portions 31 on the inner peripheral side. 32. Note that when the connecting portion 32 is cut and removed, two terminals 30 are obtained. And the connection nail | claw 31a opened toward the lower side (anti-commutator 11 side) in the figure so that it may mutually face the outer side is provided in the radial direction approximate center part of each side wall part 31. As shown in FIG. In each divided core member 20, the end of the winding 15 is sandwiched and joined to the connection claw 31a (see FIGS. 5A and 5B).

  Further, the end portions on the opposite side (outer peripheral side) of the connecting portions 32 of the two side wall portions 31 are formed to be bent inward from each other, and the bent portions are axially upper (commutator) in the figure. 11 is provided with an insertion portion 33 having an insertion hole. In each divided core member 20, the insertion portion 33 is fitted into two receiving recesses 26 a formed in the installation portion 26 of the bobbin 14 (see FIGS. 5A and 5B), and the connection terminal 34 ( A terminal 30) is fixed to the bobbin 14. The insertion portion 33 is bent so as to be opened upward, thereby allowing the terminal pin 18 of the short-circuit member 40 to be inserted (insertable) and elastically deforming in the radial direction. Has been. For this reason, when it is inserted into the receiving recess 26a, it is shrunk in the radial direction, and is prevented from coming off by trying to expand in the same direction in the stored state, and is securely fixed to the receiving recess 26a. In the present embodiment, part of the installation portion 26 and the connection terminal 34 (the insertion portion 33 of the terminal 30) is accommodated in the recess 10a of the core 10.

Here, the winding method to each said split core member 20 is explained in full detail.
First, the winding winding device 50 used for winding the winding 15 around each divided core member 20 will be described.

  As shown in FIG. 7, the winding device 50 includes two winding supply units (not shown), two pulleys 51, two guide members 52, and two jigs 53. The windings 15 drawn out from the respective winding supply units are sent out to the split core member 20 side held by the jig 53 via the pulley 51 and the guide member 52.

  Each jig 53 is disposed on the downstream side of each guide member 52 in the delivery direction of the winding 15. Each jig 53 includes a tooth holding portion 54 and a rotation shaft 55. The holding recess 54 a formed in the tooth holding portion 54 has a shape corresponding to the outer peripheral side of each tooth 13. Each tooth holding portion 54 is configured to support the teeth 13 positioned on opposite sides of the divided core member 20. Thereby, the split core member 20 is held by the two jigs 53. That is, the jigs 53 are provided so that the holding recesses 54 a face each other, and the split core member 20 is held between the jigs 53.

  The rotation shaft 55 protrudes from the back surface side of the holding recess 54a in the teeth holding portion 54, and is connected to the rotation shaft of a driving motor (not shown). Each jig 53 is rotated in the same direction (in the direction of arrow F1 in the figure) by driving of a driving motor. When the split core member 20 is rotated along with the rotation of the jig 53, the winding 15 is wound around each of the two teeth 13 held by the teeth holding portion 54 (bobbin winding).

  Each guide member 52 is disposed downstream of each pulley 51 in the delivery direction of the winding 15. Each guide member 52 is for guiding the winding 15 drawn from the winding supply section. Each guide member 52 is adapted to move along the axial direction of the rotation shaft 55 (the direction of the arrow F2 in the figure).

  In the present embodiment, the winding winding device 50 is configured to wind the winding 15 around each tooth 13 to which each bobbin 14 of the divided core member 20 is attached, and to perform each bobbin 14 (tooth 13). A locking operation (temporary fixing operation) for locking (temporarily fixing) the winding 15 to the protrusion 24b provided on the outer peripheral side is performed.

  In the winding operation, the winding 15 drawn from each winding supply unit is sent to the split core member 20 via the pulley 51 and the guide member 52. Then, by rotating the rotating shaft 55 of each jig 53 while the winding 15 is being sent, the winding 15 is simultaneously wound around the two teeth 13 (bobbins 14) held by the teeth holding portions 54. The At this time, the windings 15 are wound around the two teeth 13 in the same direction as viewed from the outer peripheral side of one of the teeth 13 (different directions as viewed from the respective teeth 13). The guide member 52 guides the winding 15 from the proximal end (inner peripheral side) to the distal end (outer peripheral side) or from the distal end to the proximal end in the cylindrical portion 23 of the bobbin 14 of each tooth 13. By being guided by each guide member 52, the winding 15 is wound around each tooth 13 (bobbin 14) with a uniform thickness. In addition, since the division | segmentation core member 20 has the space | interval of adjacent teeth 13 wide (each tooth 13 is arrange | positioned every 180 degrees), the front-end | tip part 13b of the bobbin 14 to the coil | winding 15 pulled out from the coil | winding supply part. Will not touch.

  In the locking operation, the windings 15 are guided by the guide members 52 and guided by the protrusions 24b provided on the outer peripheral side of the bobbins 14, and the jigs 53 are moved in the opposite direction to the winding operation (in the drawing). By rotating in the direction of arrow F3, the winding 15 is temporarily fixed to the protruding portion 24b (in FIG. 7, wound). However, in the winding method to the split core member 20 described later, as a locking operation, the winding 15 is guided and locked in the locking groove 24a and is not wound around the protruding portion 24b. That is, as the locking operation, it is possible to select between winding the winding 15 around the protruding portion 24b and locking it, or arranging and locking the winding 15 in the locking groove 24a. This locking operation is similarly performed before and after the winding 15 is wound.

Next, the winding method to each divided core member 20 using the winding winding device 50 will be described.
First, the two teeth 13 of the split core member 20 are held by the jig 53, respectively. Next, as shown in FIG. 8, in the outer peripheral side flange portion 24 of each bobbin 14 attached to the two teeth 13 of the split core member 20, the same as seen from the outer peripheral side of one tooth 13, as shown in FIG. The winding start end of the winding 15 is locked to one locking groove 24a located on the side (the back side in FIG. 8).

  And as a 1st winding process, the coil | winding 15 is wound by the column part 13a (cylindrical part 23 of each bobbin 14) of each teeth 13 by the said winding operation | movement, guiding by the guide member 52. FIG. At this time, the windings 15 are wound around the two teeth 13 in the same direction as viewed from the outer peripheral side of one of the teeth 13. When the first-stage winding (first winding process) of the winding 15 that is the lowest layer on each tooth 13 is completed, the end of the winding 15 (the end of the first-stage winding) is 1 The inner periphery from the locking groove 25a of the inner peripheral side flange 25 located on the opposite side in the circumferential direction (the front side in FIG. 8) to the locking groove 24a that locks the winding start end of the winding 15 of the stage. Pulled out to the side.

  As a crossover process, as shown in FIG. 9, the end portion of the winding 15 drawn out from one tooth 13 is inverted by the jig 53 so that the locking groove 25 a of the other tooth 13 is engaged. It is passed to. At this time, the winding 15 drawn out from each tooth 13 is stretched so as to intersect between the two teeth 13. In the present embodiment, since the two windings 15 are spanned between the two teeth 13 arranged at intervals of 180 °, the windings 15 extend along the side walls of the teeth 13. It is in a state (substantially radial direction).

  Thereafter, as a second winding step, the remaining windings 15 are wound around the teeth 13 with the positions of the locking grooves 25a into which the windings 15 are drawn in the teeth 13 as starting positions. Then, as shown in FIG. 10, in the outer peripheral side flange 24 of each tooth 13, the winding 15 is wound at the position of the locking groove 24a opposite to the side where the first-stage winding is drawn. The winding end end of the winding 15 is locked in the locking groove 24a and pulled out from the locking groove 24a.

  Next, as a joining step, at the outer peripheral side flange 24 of each tooth 13, from the winding start end of the first stage winding 15 drawn out from one locking groove 24a and the other locking groove 24a. The winding end end portion of the drawn winding 15 is joined to the outer peripheral side of the outer peripheral flange 24. The two windings 15 that are joined at this time, that is, the joining portion Z (see FIG. 5) are accommodated in a notch 24 c formed at the upper end of the outer peripheral side flange 24. In the present embodiment, the winding 15 is wound from the outer peripheral side to the inner peripheral side of each tooth 13 in the first winding step, and the uppermost layer is wound in the second winding step. The wire 15 is wound from the inner peripheral side of each tooth 13 toward the outer peripheral side. For this reason, in the joining process, two windings 15 (the winding start end of the first winding process and the winding end of the second winding process) are joined on the outer peripheral side of each tooth 13. .

  Next, in the present embodiment, two windings 15 arranged between the two teeth 13 as shown in FIG. Are moved into the bobbin 14 beyond the inner peripheral side flange 25 of one bobbin 14. Therefore, the two windings 15 between the two teeth 13 are parallel.

  Thereafter, as shown in FIG. 11 (b), the connection terminal 34 is inserted into the housing recess 26 a of the installation portion 26 as a connection contacted portion fixing step. At this time, the connection terminal 34 is provided such that the connection claws 31 a provided on both sides in the circumferential direction sandwich the winding 15 passed between the two teeth 13. In the present embodiment, since the two windings 15 spanned between the two teeth 13 are substantially parallel to each other, the winding 15 can be formed only by installing the connecting terminal 34 in the installation portion 26. It is suitably sandwiched between the connecting claws 31a. For this reason, the connection process of the connection terminal 34 (terminal 30) and the coil | winding 15 becomes easy, and automation of manufacture is attained.

  Thereafter, as a connection step, the connection claw 31a of the connection terminal 34 and the winding 15 are electrically connected (fixed) by fusing. More specifically, as shown in FIG. 12A, an electrode of a device (not shown) in which a ground electrode 101 is installed between the side walls 31 of the connection terminal 34 and performs fusing from both sides in the circumferential direction of the connection terminal 34. 102 is pressed with a predetermined pressure from both sides. In this state, a large current flows between the ground electrode 101 and each electrode 102. Then, the site | part of the connection nail | claw 31a generate | occur | produces heat, and while the coil | winding 15 is fuse | melted by this heat_generation | fever, the three parts of the side wall part 31, the coil | winding 15, and the connection claw 31a are joined.

  Thereafter, as shown in FIG. 12 (b), as a cutting step, the winding 15 on the inner peripheral side (portion indicated by the middle dotted line in FIG. 12 (a)) is cut and removed from the connection claw 31a, and the contacted portion is divided. As a process, the connecting portion 32 is cut and removed (the terminal 30 is formed by dividing the connecting terminal 34), and the winding operation of the winding 15 around the divided core member 20 is completed. By this cutting and removing, two terminals 30 each having one connection claw 31a and one insertion portion 33 are formed.

  As an assembly process, as shown in FIGS. 13 and 14, as described above, the four divided core members 20 provided with the bobbin 14, the winding 15 and the terminal 30 are laminated in the axial direction (annular portion 22). Are combined and integrated so as to be laminated at the coaxial center) and press-fitted into the rotary shaft 9.

  As shown in FIG. 15, the commutator 11 includes two segments 17 provided with terminal pins 18 and one segment 17 not provided in the segments 17 arranged on the outer peripheral surface of the insulator 16 in the circumferential direction. Are alternately arranged in the circumferential direction. As described above, the commutator 11 of the present embodiment is provided with the short-circuit member 40 having the terminal pin 18 connected to the connection terminal 34 of the core 10 while short-circuiting the segment 17.

  As shown in FIG. 16, housing recesses 16 a and 17 a for housing the short-circuit member 40 are formed on the surface of the insulator 16 and the segment 17 constituting the commutator 11 on the core 10 side. The insulator 16 is provided with a positioning recess 16 b for positioning the short-circuit member 40 with respect to the commutator 11.

  As shown in FIGS. 17A and 17B, the short-circuit member 40 includes a first short-circuit component member group 41, a second short-circuit component member group 42, and an insulating material 43, and the surface on the insulator 16 side. A first short circuit component group 41 is disposed on the surface, and a second short circuit component group 42 is disposed on the surface on the core 10 side.

  Each of the first and second short-circuit constituting member groups 41 and 42 includes connection portions 44 and 45, respectively. Each connection portion 44 and 45 includes outer peripheral side terminals 44 a and 45 a on the outer peripheral side, and inner connection on the inner peripheral side. Peripheral terminals 44b and 45b are provided. Each of the connecting portions 44 and 45 has a shape extending in a radial direction so as to connect the outer peripheral side terminals 44a and 45a and the inner peripheral side terminals 44b and 45b with a shift of 60 °. In the present embodiment, 24 connecting portions 44 and 45 are provided in the first and second short circuit component groups 41 and 42, respectively. The outer peripheral terminals 44a and 45a and the inner peripheral terminals 44b and 45b are alternately formed with fitting concave portions and fitting convex portions in the circumferential direction, and these fitting concave portions and fitting convex portions are formed. By being fitted, the first short circuit component group 41 and the second short circuit component group 42 are configured to be integrated in the axial direction.

  And the 1st and 2nd short circuit component group 41 and 42 are laminated | stacked by making the connection parts 44 and 45 into the reverse direction (the direction shifted from the same direction is reverse), and the outer peripheral side terminals 44a and 45a, The inner peripheral terminals 44b and 45b are in contact with each other in the stacking direction, and the connecting portions 44 and 45 are not in contact with each other in the stacking direction. In addition, the 1st and 2nd short circuit component group 41,42 is the fitting convex part being fitted by the fitting recessed part, and the outer peripheral side terminals 44a and 45a and inner peripheral side terminals 44b and 45b are respectively. It is fixed.

  The insulating material 43 is made of an insulating resin material and is interposed between the connecting portions 44 and 45 arranged in the stacking direction. Specifically, the outer peripheral terminals 44a and 45a, the inner peripheral terminals 44b and 45b, and the connecting portions 44 and 45 configured as described above are formed to fill the gaps. The insulating material 43 is formed with positioning convex portions 43a for positioning in the circumferential direction at positions corresponding to the positioning concave portions 16b.

  Moreover, in this Embodiment, the latching | locking part 44c and the terminal pin 18 are continuously formed in the outer peripheral side of 24 outer peripheral side terminals 45a which comprise the 1st short circuit component member group 41 to each outer peripheral side terminal 45a. Has been. Specifically, one locking portion 44c and two terminal pins 18 are formed alternately in the circumferential direction.

  The locking portion 44c is sized to be accommodated in the accommodating recess 17a formed in the segment 17 (commutator 11) in the radial direction, and movement to the radially outer side is restricted by the segment 17. The terminal pin 18 has a base end portion that is the same size as the locking portion 44c and is housed in the housing recess 17a. The terminal pin 18 is bent in the axial direction from the base end portion so as to protrude toward the core 10 side. (See FIG. 2).

  The short-circuit member 40 is fixed to the commutator 11 so that the outer peripheral side terminal 44 a (outer peripheral side terminal 45 a) is connected to the segment 17. Specifically, in the short-circuit member 40, the positioning convex portion 43a is fitted into the positioning concave portion 16b and is accommodated in the accommodating concave portions 16a and 17a. In that state, the portion excluding the locking portion 44c and the base end portion of the terminal pin 18 is accommodated in the accommodating recess 16a, and the locking portion 44c and the base end portion of the terminal pin 18 are accommodated in the accommodating recess 17a. . The short-circuit member 40 is fixed by being caulked in the axial direction in a state where the locking portion 44c is housed in the housing recess 17a (not shown).

Here, the manufacturing method of the short circuit member 40 comprised as mentioned above is demonstrated.
First, as shown in FIG. 18, each connection part 44 (45) in the 1st short circuit component group 41 (2nd short circuit component group 42) is formed spaced apart in the circumferential direction, and these connection parts 44 ( 45) The conductive plate 48 is punched out so as to form an inner connecting portion 46 and an outer connecting portion 47 that connect the outer ring portion 45) in an annular shape radially inward and outward. In the present embodiment, at this time, the conductive plate material 48 is punched so as to be spaced apart in the circumferential direction also at the outer peripheral side terminal 44a (45a) and the inner peripheral side terminal 44b (45b). Moreover, in this embodiment, the said fitting recessed part and the said fitting convex part are formed simultaneously at this time. And as shown in FIG. 19, the two electroconductive board | plate materials 48 pierce | punched are laminated | stacked in the state in which the said connection parts 44 and 45 become reverse direction. At this time, the fitting convex portion is fitted into the fitting concave portion.

  Next, the insulating material 43 is filled and cured. Specifically, the two conductive plates 48 stacked are accommodated in a mold (not shown), and filled with a molten insulating resin material and cured so that the gaps formed in the two conductive plates 48 are filled. Thus, the insulating material 43 is formed. At this time, the positioning convex portion 43a is simultaneously formed.

  Next, as one conductive plate 48 is indicated by a two-dot chain line in FIG. 19, the other conductive plate 48 is a portion corresponding to the terminal pin 18 in one conductive plate 48 (two-dot chain line in FIG. 19). The inner connecting portion 46 and the outer connecting portion 47 are removed (punched) so as to obtain a shape excluding. Thereafter, a portion corresponding to the terminal pin 18 is bent toward the core side, whereby the manufacture of the short-circuit member 40 (see FIGS. 17A and 17B) is completed.

  In the short-circuit member 40 configured as described above, the 24 outer peripheral terminals 44a and 45a (the inner peripheral terminals 44b and 45b) are electrically connected at intervals of 120 ° (see FIG. 3). ). Therefore, in the commutator 11, the predetermined segment 17 is short-circuited by the short-circuit member 40. For this reason, as shown in FIG. 3, the current flows not only in the segment 17 in which the anode side and cathode side power supply brushes 7 b and 7 b are in direct contact but also in the segment 17 short-circuited by the short-circuit member 40. For this reason, it is possible to simultaneously supply current to a large number of windings 15 while reducing the number of anode-side and cathode-side power supply brushes 7b, 7b.

  Then, as an assembly connection step, the terminal pin 18 is connected (press-fitted) to the terminal 30 by assembling the commutator 11 to the core 10. Specifically, as described above, the rectification in which the short shaft member 40 (terminal pin 18) is provided on the rotating shaft 9 (see FIGS. 13 and 14) provided with the core 10 from the side where the terminal 30 of the core 10 is provided. The armature 3 is completed by press-fitting the child 11. At this time, the terminal pin 18 provided in the commutator 11 is inserted into the insertion portion 33 of the terminal 30 along the axial direction and is electrically connected.

  Thereafter, the armature 3 is inserted into the yoke housing 4 provided with the permanent magnet 5 from the opening side. And the end frame 6 is fixed to the yoke housing 4, and the motor 1 shown in FIG. 2 is completed.

As described above, the present embodiment has the following effects.
(1) Since the winding 15 is passed between the two teeth 13 (13), the winding 15 wound around the core 10 is connected to the commutator 11 using the connecting wire (winding 15). Is possible. For this reason, it is not necessary to hold | maintain in order to connect the edge part of the coil | winding 15 wound by the teeth 13 of the core 10 to the said commutator 11, so that the armature 3 can be manufactured easily. Productivity is improved.

  (2) In each divided core member 20, the winding start end portion and the winding end end portion of the winding 15 are connected, so that when the plurality of divided core members 20 are assembled and integrated, the end portion of the winding 15 Is fixed. In other words, after the step of winding the winding 15 around each divided core member 20 (first and second winding steps), the assembly process of assembling these divided core members 20 and winding around each tooth 13 (13). When the process moves to the step of connecting the end of the winding 15 to the commutator 11, it is not necessary to hold the end so that the winding 15 wound around each split core member 20 cannot be unwound. For this reason, the armature 3 can be easily manufactured and productivity can be improved.

  (3) Since the winding 15 wound in the first winding process is only the lowermost layer (first stage) in each tooth 13, the connecting wire (inner circumference from each tooth) is passed between the two teeth 13. The winding 15) drawn to the side is on the side opposite to the commutator 11 in the axial direction from the coil end. For this reason, the commutator 11 can be pushed into the core 10 and the motor 1 can be reduced in the axial direction.

  (4) Since the windings 15 passed between the two teeth 13 extend in parallel to each other, the crossover wires (windings 15) passed to the two teeth 13 substantially follow the shape of the split core member 20 (the teeth 13). It becomes like this. For this reason, it becomes easy to perform the terminal process of a coil | winding in the teeth 13 inner peripheral side, and productivity improves. Therefore, it is possible to increase the space by attaching the windings 15 to the divided core members 20 before assembling them, and to improve the productivity while reducing the size of the armature 3.

  (5) Since the two teeth 13 around which the winding 15 is wound in the divided core member 20 are arranged at an interval of 180 ° (opposite), the winding 15 passed between the two teeth 13 guides. Even if the member for this is not provided, it arrange | positions in the vicinity of the connection part 21 and the annular part 22. FIG.

  (6) The winding start end and the winding end end of the winding 15 wound by the two teeth 13 are the outer peripheral sides of the teeth 13. For this reason, the connection operation | work (joining process) of the two coil | windings 15 can be performed on the outer peripheral side of each teeth 13, and workability | operativity is good.

  (7) The winding 15 is drawn out from each tooth 13 to the inner peripheral side, the winding 15 is passed between the two teeth 13, and the winding 15 is wound after the winding 15 is wound thereon. Is disconnected. For this reason, the coil | winding 15 passed between the two teeth 13 is cut | disconnected in the state hold | maintained, the member and operation | work for holding | maintenance are unnecessary, and it can cut | disconnect easily.

  (8) In the armature 3, the joint Z of the winding 15 is the outer periphery of the core 10, and the stator 2 is assembled from the opposite side of the joint Z in the axial direction. For this reason, it is prevented that the junction part Z of the coil | winding 15 and the permanent magnet 5 of the stator 2 interfere during assembly | attachment.

  (9) The number of magnetic poles P of the permanent magnet 5 of the motor 1 is set to 6, the number of slots N between the teeth 13 is set to 8, and the number of segments S provided in the commutator 11 is set to 24. It is possible to obtain the motor 1 which is 0.9 or more, which is advantageous for reducing the size and weight and increasing the output. The short-pitch winding coefficient is a coefficient that takes into account the interval between winding sides with respect to the magnetic pole pitch, and is proportional to the output of the motor. That is, the greater the short turn factor, the greater the motor output.

  Further, the resultant torque vector of each tooth 13 (ie, slot) of the armature 3 becomes zero, the force of the armature 3 in the radial direction becomes zero, and the force of the armature 3 in the radial direction becomes zero. Vibration of the armature 3 due to the action of force in the direction is suppressed.

  (10) Before the cutting step, the passed winding 15 is electrically connected (fixed) to the terminal 30 held with respect to the core 10 in the connecting step. Therefore, after that, even if the winding 15 passed between the two teeth 13 is cut in the cutting process (even if the winding 15 on the inner peripheral side of the connection claw 31a of the terminal 30 is cut and removed), the winding 15 is cut. The end portion of the winding 15 formed at the time can be held with respect to the core 10 by the terminal 30. Then, since the terminal pin 18 of the commutator 11 is connected to the terminal 30 by assembling the commutator 11 with respect to the core 10 in the assembling and connecting step, particularly the end of the winding 15 and the commutator 11 are connected. The connection work becomes easy (can be omitted), and the productivity is improved.

  (11) Prior to the connecting step, the connecting terminal 34 in a state where a plurality of terminals 30 are connected is held to the core 10 in the connecting contacted portion fixing step. Then, after the connecting step, in the contacted portion dividing step, the connecting terminal 34 is divided (the connecting portion 32 is cut and removed) to form the terminal 30. If it does in this way, the number of parts in a manufacturing process (process which makes a core hold | maintain a terminal) will be reduced, and cost reduction will be attained.

  (12) Among the radially inner surfaces of the teeth 13, the one end side in the axial direction and the surface on which the connecting portion 21 is not formed become an exposed heat dissipation surface, so that the windings 15 wound around the core 10 and eventually the teeth 13 are formed. Temperature rise can be suppressed. Further, since the connecting portion 21 and the annular portion 22 are formed so as to avoid the one end side in the axial direction of the tooth 13, the recess 10 a is formed in the core 10 at a position corresponding to the connecting portion 21 and the annular portion 22 on the one end side in the axial direction. Thus, a part of the installation part 26 and the connecting terminal 34 (insertion part 33 of the terminal 30) can be accommodated in the recess 10a as in the present embodiment. Therefore, the axial size of the armature 3 (motor 1) can be reduced. Further, in the split core member 20, the two teeth 13 are arranged at an interval of 180 ° (facing each other), so that the pair of passed windings 15 is symmetrical or the length of the pair of passed windings 15 is set. Since it can be made the same, workability at the time of manufacture becomes good.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS.
Note that the second embodiment differs from the first embodiment only in the configuration and winding method of the winding winding device that winds the winding 15 around each tooth 13, so that the electric machine Similar parts such as the child 3 are denoted by the same reference numerals, description thereof is omitted, and only different parts are described.

First, the winding winding device 60 used for winding the winding 15 around each divided core member 20 in the present embodiment will be described.
As shown in FIG. 20, the winding device 60 includes two pulleys 61, two guide members 62, and two jigs 63. In addition, the winding winding device 60 includes two winding supply units 66, and the windings 15 drawn from the respective winding supply units 66 are held by a jig 63 via a pulley 61 and a guide member 62. It is sent out to the divided core member 20 side.

  Each jig 63 is disposed on the downstream side of each guide member 62 in the delivery direction of the winding 15. Each jig 63 includes a tooth holding portion 64 and a support shaft 65. The holding recess 64 a formed in the tooth holding portion 64 has a shape corresponding to the outer peripheral side of each tooth 13. Each tooth holding portion 64 is configured to support the teeth 13 positioned on opposite sides of the divided core member 20. Thereby, the split core member 20 is held by the two jigs 63. That is, the jigs 63 are provided so that the holding recesses 64 a face each other, and the split core member 20 is held between the jigs 63.

  The support shaft 65 protrudes from the back side of the holding recess 64a in the tooth holding portion 64, and the winding supply portion 66 is disposed on the support shaft 65 side. The winding supply unit 66 includes a supply unit 67 and a rotating shaft 68. The rotating shaft 68 protrudes from the back surface of the winding supply portion 66 facing the teeth holding portion 64, and each rotating shaft 68 is connected to the pulley 61 and the guide member via a jig connecting member 69. 62 is connected. The rotating shaft 68 is connected to a rotating shaft of a driving motor (not shown). Each winding supply section 66 is rotated in a different direction (F11 direction in FIG. 20) as viewed from one of the teeth 13 by driving of the driving motor, and the winding 15 is rotated with the rotation of the winding supply section 66. The pulley 61 and the guide member 62 that hold the shaft rotate around the rotation shaft 68. When the divided core members 20 are held by the jig 63, the winding supply unit 66 rotates, so that the windings 15 are simultaneously applied to the two teeth 13 held by the teeth holding unit 64. It is wound (flyer winding).

  Each guide member 62 is disposed on the downstream side of each pulley 61 as in the case of the guide member 52 in the first embodiment, and moves along the axial direction of the rotation shaft 68 (the direction of the arrow F12 in the figure). It is like that.

Moreover, the winding winding apparatus 60 performs the winding operation | movement to the division | segmentation core member 20, and a latching operation (temporary fastening operation | movement) similarly to the said 1st Embodiment.
In the winding operation, the winding 15 drawn out from each winding supply unit 66 is sent to the split core member 20 via the pulley 61 and the guide member 62. Then, the winding shaft 15 is simultaneously wound around the two teeth 13 (bobbins 14) held by the teeth holding portions 64 by rotating the rotating shaft 68 of each winding supply portion 66 while the windings 15 are being sent out. Is done. At this time, the windings 15 are wound around the two teeth 13 in different directions as viewed from the outer peripheral side of one of the teeth 13 (the same direction as viewed from the outer peripheral side of each tooth 13). The guide member 62 guides the winding 15 from the proximal end (inner peripheral side) to the distal end (outer peripheral side) or from the distal end to the proximal end in the cylindrical portion 23 of the bobbin 14 of each tooth 13. By being guided by each guide member 62, the winding 15 is wound around each tooth 13 (bobbin 14) with a uniform thickness. In addition, since the division | segmentation core member 20 has the space | interval of the adjacent teeth 13 wide (each tooth 13 is arrange | positioned every 180 degrees), the front-end | tip part of the bobbin 14 is set to the coil | winding 15 pulled out from the coil | winding supply part 66. Will not touch.

  In the locking operation, the windings 15 are guided by the guide members 62 and guided by the protruding portions 24b provided on the outer peripheral side of the bobbins 14, and the winding supply portions 66 are in directions opposite to the winding operation (see FIG. By rotating in the direction of the middle arrow F13), the winding 15 is temporarily fixed (wrapped in FIG. 20) to the protruding portion 24b. However, in the winding method to the split core member 20 described later, as a locking operation, the winding 15 is guided and locked in the locking groove 24a and is not wound around the protruding portion 24b. That is, as the locking operation, it is possible to select between winding the winding 15 around the protruding portion 24b and locking it, or arranging and locking the winding 15 in the locking groove 24a. This locking operation is similarly performed before and after the winding 15 is wound.

Next, the winding method to each divided core member 20 using the winding winding device 60 will be described.
First, the two teeth 13 of the split core member 20 are held by the jig 63, respectively. Next, as shown in FIG. 21, in the outer peripheral side flange portion 24 of each bobbin 14 attached to the two teeth 13 of the split core member 20, as viewed from the outer peripheral side of one of the teeth 13, The winding start end of the winding 15 is locked in one locking groove 24a located on a different side.

  And as a 1st winding process, the coil | winding 15 is wound by the pillar part 13a (cylindrical part 23 of each bobbin 14) of each teeth 13 by the said winding operation | movement, guiding by the guide member 62. As shown in FIG. At this time, the windings 15 are wound around the two teeth 13 in different directions as viewed from the outer peripheral side of the one tooth 13. When the first-stage winding (first winding process) of the winding 15 that is the lowest layer on each tooth 13 is completed, the end of the winding 15 (the end of the first-stage winding) is 1 It is pulled out to the inner peripheral side from the engaging groove 25a of the inner peripheral side flange portion 25 located on the opposite side in the circumferential direction to the engaging groove 24a engaging the winding start end of the winding 15 of the stage. As a result, on the side of the split core member 20 facing the two teeth 13, the winding 15 is drawn out from the locking grooves 25 a on different sides as viewed from the outer peripheral side of the one tooth 13.

  As a crossover process, as shown in FIG. 22, the end portion of the winding 15 drawn out from one of the teeth 13 is inverted by the jig 63 so that the locking groove 25a of the other tooth 13 is engaged. It is passed to. At this time, the windings 15 drawn from the teeth 13 are stretched so as to be substantially parallel between the two teeth 13. In the present embodiment, the two windings 15 are stretched in parallel between the two teeth 13 arranged at intervals of 180 °.

  Thereafter, as a second winding step, the remaining windings 15 are wound around the teeth 13 with the positions of the locking grooves 25a into which the windings 15 are drawn in the teeth 13 as starting positions. Then, as shown in FIG. 23, the winding 15 is wound around the outer peripheral side flange 24 of each tooth 13 at the position of the locking groove 24a opposite to the side where the first stage winding is drawn. The winding end end of the winding 15 is locked in the locking groove 24a and pulled out from the locking groove 24a.

  Next, as in the first embodiment, a joining step is performed to join the winding start end and the winding end end of the winding 15 of each tooth 13. Thereafter, as shown in FIG. 24, the connection terminal 34 is inserted into the accommodation recess 26a of the installation portion 26 as a connection contacted portion fixing step. At this time, the connection terminal 34 is provided such that the connection claws 31 a provided on both sides in the circumferential direction sandwich the winding 15 passed between the two teeth 13. In the present embodiment, since the two windings 15 spanned between the two teeth 13 are substantially parallel to each other, the winding 15 Is suitably sandwiched between the connecting claws 31a. For this reason, the connection process of the connection terminal 34 (terminal 30) and the coil | winding 15 becomes easy, and automation of manufacture is attained. Thereafter, as in the first embodiment, the connection process and the like are sequentially performed to manufacture the armature 3.

As described above, the present embodiment has the following effects.
(1) Since the winding 15 passed between the two teeth 13 is made substantially parallel, the end processing of the connecting wire (winding 15) passed to the two teeth 13 can be easily performed, and production Improves. Therefore, it is possible to increase the space by attaching the windings 15 to the divided core members 20 before assembling them, and to improve the productivity while reducing the size of the armature 3. In addition, since the step of moving the intersecting portion of the windings 15 in the first embodiment (see FIGS. 10 and 11A) is not required, the manufacturing process is simplified.

In addition, you may change each said embodiment as follows.
In the first embodiment, the winding method in which the winding 15 is wound around the two teeth 13 of the split core member 20 by bobbin winding has been described. It may be wound with. For example, you may wind the coil | winding 15 to the division | segmentation core member 20 by flyer winding using the coil | winding winding apparatus 70 shown in FIG. A winding winding device 70 shown in FIG. 25 has a configuration similar to that of the winding winding device 60 used in the second embodiment, a winding supply portion 76 having a supply portion 77 and a rotating shaft 78, and A pulley 71 and a guide member 72 connected to the winding supply unit 76 by a jig connecting member 79 are provided. Similarly to the second embodiment, the split core member 20 includes a support shaft provided on the teeth holding portion 74, the outside of each tooth 13 being accommodated in the holding recess 74 a and held in the teeth holding portion 74. 75. By winding the winding 15 in the same direction as viewed from the outer peripheral side of one of the teeth 13 of the split core member 20 by the winding winding device 70 (different directions as viewed from the outer peripheral side of each tooth 13), The winding 15 can be wound by the same winding method as in the first embodiment.

  -You may change the split core member 20 of the core 10 of the said embodiment into the split core members 81-84 shown in FIGS. The divided core members 81 to 84 of this example have many parts similar to the divided core member 20 of the above embodiment, but the same or different parts will be described in detail.

  That is, as shown in FIG. 26, the core 10 is formed by combining a plurality (four in this example) of divided core members 81 to 84 (see FIG. 27), and a plurality of (eight in this example). Teeth 85 is provided.

  Each of the divided core members 81 to 84 is formed by laminating plate materials in the axial direction (of the core 10) and fixing (for example, by caulking, bonding, laser welding, or the like). In the figure, the boundary lines of the stacked plate members are omitted except for a part of FIG. 28 (see the two-dot chain line).

  And each division | segmentation core member 81-84 avoids the two teeth 85 and the axial direction one end side (left side in FIG. 1) in the teeth 85 from a part of axial direction, as shown in FIGS. It has a connecting portion 86 extending radially inward (that is, made thin) and an annular portion 87 formed at the tip of the connecting portion 86. In each of the divided core members 81 to 84, the teeth 85 and the connecting portion 86 are formed at an interval of 180 ° (opposite) with the annular portion 87 as the center. The connecting portion 86 is formed in a substantially fan shape when viewed from the axial direction. Further, the annular portion 87 has an inner and outer periphery formed in a perfect circle shape.

  Each of the divided core members 81 to 84 is set such that the positions of the connecting portion 86 and the annular portion 87 in the axial direction are different. Specifically, as shown in FIG. 28, the connecting portion 86 and the annular portion 87 of the split core member 81 are formed such that the lower surface (the lower surface in FIG. 28) coincides with the axial center X of the tooth 85. . Further, the connecting portion 86 and the annular portion 87 of the split core member 82 are formed so that the upper surfaces (the upper surfaces in FIG. 28) coincide with the axial center X. Further, the connecting portion 86 and the annular portion 87 of the split core member 83 have their lower surfaces (lower surfaces in FIG. 28) spaced apart from the axial center X in the axial direction (upward in FIG. 28). 81 is formed so as to coincide with the upper surfaces (upper surfaces in FIG. 28) of the connecting portion 86 and the annular portion 87. Further, the upper surface (upper surface in FIG. 28) of the connecting portion 86 and the annular portion 87 of the split core member 83 is lower in the axial direction (lower in FIG. 28) than the upper axial end portion (upper end portion in FIG. 28) of the tooth 85. It is formed so as to be separated from each other. Further, the upper surface (upper surface in FIG. 28) of the connecting portion 86 and the annular portion 87 of the split core member 84 is spaced apart from the axial center X in the axial direction (downward in FIG. 28). It is formed so as to coincide with the lower surface (the lower surface in FIG. 28) of the connecting portion 86 and the annular portion 87 in 82. Further, the lower surface (lower surface in FIG. 28) of the connecting portion 86 and the annular portion 87 of the split core member 84 is axially above (upward in FIG. 28) the axial lower end (lower end in FIG. 28) of the tooth 85. It is formed so as to be separated from each other.

  And these division | segmentation core members 81-84 are the center of each annular part 28 in the order of the division | segmentation core member 84, the division | segmentation core member 82, the division | segmentation core member 81, and the division | segmentation core member 83 from the bottom in FIG. Laminated and combined. At this time, the divided core member 84, the divided core member 82, the divided core member 81, and the divided core member 83 are arranged in the order of the connecting portion 86 and the teeth 85 in the circumferential direction by one tooth 85 minutes (360/8 = 45 °). The layers are stacked while being shifted (see FIG. 27). Thereby, in a state where the split core members 81 to 84 are combined, the teeth 85 are arranged radially (at equal angular intervals), and the plurality of connecting portions 86 are formed in a spiral staircase shape. Further, in the state where the split core members 81 to 84 are combined, as shown in FIG. 28, the (total) axial thickness T1 of the plurality of connecting portions 86 and the annular portion 87 is the axial thickness of the teeth 85. It becomes smaller than T2. And in this Embodiment, the recessed part 10b, 10c extended in an axial direction from the axial direction both ends of the core 10 in the position corresponding to the connection part 86 and the annular part 87 of the core 10, respectively is formed.

  The teeth 85 include a column portion 85a extending in the radial direction so that the winding 15 is actually wound, a tip portion 85b formed on the radially outer side of the column portion 85a, and a radially inner side of the column portion 85a. And a rotation restricting portion 85c formed on the surface. As shown in FIG. 26, the tip end portion 85b extends in the circumferential direction from the radially outer end portion of the column portion 85a, and prevents the winding 15 from coming off radially outward. In addition, as shown in FIG. 26, the rotation restricting portion 85c extends in the circumferential direction from the radially inner end portion of the column portion 85a (the circumferential end surfaces are spaced at 45 ° intervals) and has different divided core members (adjacent to each other). Abutting in the circumferential direction with that of the matching teeth 85). The teeth 85, that is, the column part 85a, the tip part 85b, and the rotation restricting part 85c have a constant (same) axial thickness T2. Further, the connecting portion 86 extends radially inward from a part of the rotation restricting portion 85c in the axial direction at both ends in the circumferential direction at the same 45 ° intervals as the rotation restricting portion 85c.

  Each rotation restricting portion 85c is formed with an engagement recess 88 and an engagement protrusion 89 that are engaged with each other in the radial direction with that of the turn restricting portion 85c in different divided core members. The engagement recess 88 is formed so as to extend in the axial direction (from one end to the other end in the axial direction) at one of the rotation restricting portions 85c in the circumferential direction (counterclockwise in FIG. 26). It is formed so as to extend in the axial direction on the other side in the circumferential direction (clockwise in FIG. 26) (from one end in the axial direction to the other end). When the split core members 81 to 84 are combined in the axial direction, the engaging convex portions 89 are fitted into the engaging concave portions 88 of the adjacent rotation restricting portions 85c, and they are engaged in the radial direction. Each of the divided core members 81 to 84 having different shapes (the four types) differs only in the positions of the connecting portion 86 and the annular portion 87 in the axial direction. Since each of the divided core members 81 to 84 is formed by laminating plate materials in the axial direction, the plate material Y including the connecting portion 86 and the annular portion 87 (the plate material in the range of the boundary line indicated by the two-dot chain line in FIG. 28). Are formed from the same material (two types of plate materials).

  If it does in this way, since connection part 86 will be made into a spiral staircase shape, when armature 3 (core 10) rotates, an air flow will be generated in spiral staircase connection part 86, and temperature rise will occur. Can be further suppressed.

  Further, since the (total) axial thickness T1 of the plurality of connecting portions 86 and the annular portion 87 is set smaller than the axial thickness T2 of the tooth 85, it corresponds to the connecting portion 86 and the annular portion 87 of the core 10. The recessed portions 10b and 10c (see FIG. 28) can be formed at the positions. Therefore, a part of the installation part 26 and the connection terminal 34 (insertion part 33 of the terminal 30), a bearing, etc. can be accommodated in the recessed parts 10b and 10c like the said embodiment. Therefore, the axial size of the armature 3 (motor 1) can be reduced.

  Furthermore, since the rotation control part 85c which contact | abuts in the circumferential direction mutually with that of a different division | segmentation core member (adjacent teeth 85) is formed in the radial direction inner side edge part of the teeth 85, different division | segmentation core members 81-84 are different. The rotation restricting portions 85c abut on each other in the circumferential direction, and the relative rotation between the split core members 81 to 84 is restricted. In addition, since the rotation restricting portion 85c is formed with an engagement concave portion 88 and an engagement convex portion 89 that are radially engaged with those of the rotation restricting portion 85c in different divided core members, for example, the armature 3 The relative movement and deformation in the radial direction between the split core members 81 to 84 due to the centrifugal force when the (core 10) is rotated are restricted.

  Further, each of the divided core members 81 to 84 is formed by stacking plate materials in the axial direction and fixing them (for example, by caulking, bonding, laser welding, etc.), and the plate materials can be easily manufactured by punching. The split core members 81 to 84 can be easily manufactured. Moreover, the eddy current loss in the core 10 can be reduced.

  Further, each of the divided core members 81 to 84 having different shapes (the four types) has only the axial positions of the connecting portion 86 and the annular portion 87 being different, and plate members are laminated in the axial direction. And the board | plate material Y (The aggregate | assembly of the board | plate material in the range of the boundary line shown with a dashed-two dotted line in FIG. 28) including the annular part 87 can be formed only by changing the order of lamination. That is, when manufacturing the (4 types) divided core members 81 to 84 having different shapes, the plate materials (2 types) to be used can be made common.

  In each of the above embodiments, the winding 15 is wound around each tooth 13 in the first winding step, and then the end of the winding is passed to the other tooth 13. The winding 15 does not necessarily have to be wound before the wire 15 is crossed. In that case, the winding 15 in which the end portion is entangled with the outer peripheral side (projecting portion 24 b) of each tooth 13 is pulled out from the inner peripheral side (locking groove 25 a) of the tooth 13 and crossed to the other tooth 13 (crossover) The wire 15) may be wound with the tooth 13 on the side to which the wire 15 is passed (winding step). With this configuration, the winding process can be performed only once, so that work efficiency is good. Moreover, since the positions of both ends of the winding 15 passed between the two teeth 13 have the same height in the axial direction, the terminal processing of the winding 15 inside the teeth 13 can be stably performed.

  -The process (refer FIG.10 and FIG.11 (a)) of moving the cross | intersection part of the coil | winding 15 in the said 1st Embodiment may be abbreviate | omitted. In this case, when the connection terminal 34 is attached to one bobbin 14 (the housing recess 26a of the installation portion 26) in the connection contacted portion fixing step (see FIG. 11B), the intersection portion is connected to the connection terminal 34. And the inner peripheral side flange 25 of one bobbin 14.

In each of the above embodiments, the winding 15 is wound only at the first stage in the first winding process, but at this time, the winding 15 may be wound a plurality of times.
-In above-mentioned embodiment, although the core 10 which comprises the armature 3 shall be comprised by the assembly | attachment of the four division | segmentation core members 20, the aspect of the core 10 is not limited to this at all. For example, the number of divided core members may be three or less, five or more, or a core that is not divided.

  In the above embodiment, the motor is embodied in a 6-pole 8-slot motor (six permanent magnets 5 and eight teeth 13). However, the mode of the motor is not limited to this and may be embodied in another motor. . The number of magnetic poles P of the permanent magnet 5 is an even number of 4 or more, the number of slots N between teeth is P ± 2 (where N = 6 when P = 4), and the number of segments S provided in the commutator 11 is N X (P / 2) may be used.

  -The tooth | gear provided in the division | segmentation core member which comprises a core is not limited to two, It is good also as three or more. In order to increase the space of the winding 15, it is preferable that adjacent teeth are divided.

In each of the above embodiments, the winding 15 is wound around the two teeth 13 arranged at intervals of 180 °, but the two teeth 13 do not necessarily have to be at intervals of 180 °.
The mode of short-circuiting the segments 17 is not limited to the short-circuit member 40, and the segments may be short-circuited by passing windings between the plurality of segments.

The technical idea that can be grasped from each of the above embodiments will be described below.
(A) In the armature manufacturing method according to any one of claims 1, 2, and 4 to 10, each of the divided core members is wound from a flyer disposed on each tooth. A method of manufacturing an armature, wherein the method is performed by supplying a wire. With this configuration, since the winding is wound around the fixed teeth (non-rotating teeth), the windings can be wound around a large number of teeth at the same time. For this reason, the manufacturing time can be shortened.

  (B) The armature according to claim 14, wherein a joined portion is formed at an intermediate portion of the winding. Such an armature can be manufactured easily by using the armature manufacturing method described in claims 1 to 10 and (a) above.

The schematic block diagram of the motor in a 1st form. Sectional drawing of the motor in the embodiment. Explanatory drawing for demonstrating the armature in the same embodiment expand | deployed planarly. The exploded perspective view of the core in the embodiment. (A) for demonstrating the manufacturing process of the armature in the embodiment is a top view, (b) is the sectional view on the AA line of (a). The perspective view of the connection terminal in the embodiment. The schematic block diagram of a coil | winding winding apparatus. Explanatory drawing for demonstrating the manufacturing process of the armature in the embodiment. Explanatory drawing for demonstrating the manufacturing process of the armature in the embodiment. Explanatory drawing for demonstrating the manufacturing process of the armature in the embodiment. (A), (b) is explanatory drawing for demonstrating the manufacturing process of the armature in the embodiment. (A), (b) is explanatory drawing for demonstrating the manufacturing process of the armature in the embodiment. The top view for demonstrating the armature in the embodiment. FIG. 14 is a sectional view taken along line BB in FIG. 13. The perspective view of the commutator in the same embodiment. Sectional drawing of the commutator in the embodiment. (A) of the short circuit member in the same embodiment is a top view, (b) is the CC sectional view taken on the line of (a). Explanatory drawing for demonstrating the manufacturing method of the short circuit member in the embodiment. Explanatory drawing for demonstrating the manufacturing method of the short circuit member in the embodiment. The schematic block diagram of the coil | winding winding apparatus in 2nd Embodiment. Explanatory drawing for demonstrating the manufacturing process of the armature in 2nd Embodiment. Explanatory drawing for demonstrating the manufacturing process of the armature in 2nd Embodiment. Explanatory drawing for demonstrating the manufacturing process of the armature in 2nd Embodiment. Explanatory drawing for demonstrating the manufacturing process of the armature in 2nd Embodiment. The schematic block diagram of the winding winding apparatus of another example. The top view of the core of another example. The disassembled perspective view of the core of another example. DD sectional drawing of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Motor, 2 ... Stator, 3 ... Armature, 5 ... Permanent magnet, 7a ... Anode side feeding brush, 7b ... Cathode side feeding brush, 9 ... Rotating shaft, 10 ... Core, 11 ... Commutator, 13, 85 ... teeth, 15 ... windings, 17 ... segments, 18 ... terminal pins as contact parts, 20, 81-84 ... split core members, 21, 86 ... connecting parts constituting part of the connecting members, 22, 87 ... An annular portion constituting a part of the connecting member, 30 ... a terminal as a contacted portion, 31a, 36a ... a connection claw, 34 ... a connecting terminal as a connected contacted portion.

Claims (14)

A method of manufacturing an armature including a core in which a plurality of divided core members in which at least two teeth are connected by a connecting member are assembled and integrated,
A first winding step of winding a winding that is a lowermost layer from the winding start end portion on each of the two teeth provided in the split core member;
A crossover step of crossing the end of winding in the first winding step of each tooth to the other teeth,
A second winding step of winding a winding around each of the teeth with the winding passed through the crossover step as a winding start end;
A joining step for joining the winding start end in the first winding step and the winding end in the second step;
An assembly process for assembling and integrating the plurality of divided core members each having the winding wound thereon. A method of manufacturing an armature including a core in which a plurality of divided core members in which at least two teeth are connected by a connecting member are assembled and integrated,
A first winding step of winding the lowermost winding from the winding start end in the same direction as viewed from one outer peripheral side of the two teeth provided in the split core member;
A crossover step of crossing the end of winding in the first winding step of each of the teeth and crossing each of the teeth to the other teeth;
A second winding step of winding a winding around each of the teeth with the winding passed through the crossover step as a winding start end;
A joining step for joining the winding start end in the first winding step and the winding end in the second step;
An assembly process for assembling and integrating the plurality of divided core members each having the winding wound thereon. In the manufacturing method of the armature of Claim 2,
The method of manufacturing an armature according to claim 1, wherein the winding of the windings around the teeth of each of the divided core members is performed while the windings are supplied while the teeth are held and rotated by a jig. A method of manufacturing an armature including a core in which a plurality of divided core members in which at least two teeth are connected by a connecting member are assembled and integrated,
A first winding step of winding a winding that is a lowermost layer from a winding start end in a different direction as viewed from one outer peripheral side of the two teeth provided in the split core member;
A crossover step of keeping the winding end in the first winding step of each of the teeth parallel to each other and passing over the other teeth,
A second winding step of winding a winding around each of the teeth with the winding passed through the crossover step as a winding start end;
A joining step for joining the winding start end in the first winding step and the winding end in the second step;
An assembly process for assembling and integrating the plurality of divided core members each having the winding wound thereon. In the manufacturing method of the armature of any one of Claims 1-4,
In the first winding step, the winding is wound from the outer peripheral side to the inner peripheral side of each tooth, and in the second winding step, the uppermost winding is the outer periphery from the inner peripheral side of each tooth. A method of manufacturing an armature, wherein the armature is wound toward the side. A method of manufacturing an armature including a core in which a plurality of divided core members in which at least two teeth are connected by a connecting member are assembled and integrated,
A crossover step of locking the ends of the windings on the outer peripheral side of the two teeth provided on the split core member and crossing the winding from the inner peripheral side of each tooth to the other tooth,
A winding step of winding a winding around each of the teeth as a winding start end portion of the winding passed by the crossover step;
A joining step for joining the end portion in the crossover step and the winding end portion in the winding step;
An assembly process for assembling and integrating the plurality of divided core members each having the winding wound thereon. In the manufacturing method of the armature of any one of Claims 1-6,
A method of manufacturing an armature, comprising a cutting step of cutting a winding passed between the two teeth. In the manufacturing method of the armature of Claim 7,
The armature has a commutator including a contact portion and a contacted portion held against the core,
Before the cutting step, a connection step of electrically connecting and fixing the passed winding to the contacted part;
A method of manufacturing an armature comprising: an assembly connection step of electrically connecting the contact portion to the contacted portion by assembling the commutator to the core after the cutting step. A core in which a plurality of divided core members in which at least two teeth are connected by a connecting member is assembled and integrated, a contacted portion held with respect to the core, and a commutator including a contact portion are provided. A method of manufacturing an armature,
A first winding step of winding a winding that is a lowermost layer from the winding start end portion on each of the two teeth provided in the split core member;
Then, a crossover step of crossing the end of winding in the first winding step of each tooth to the other teeth,
Then, a second winding step of winding a winding around each of the teeth with the winding passed through the crossover step as a winding start end,
Thereafter, a connection step of electrically connecting and fixing the passed winding to the contacted part;
Thereafter, a cutting step of cutting the winding passed between the two teeth,
Thereafter, an assembling step for assembling and integrating the plurality of divided core members wound with windings;
Then, an assembly connection step of electrically connecting the contact portion to the contacted portion by assembling the commutator to the core;
A joining step of joining the winding start end in the first winding step and the winding end end in the second step at a stage after the second winding step; The manufacturing method of an armature. In the manufacturing method of the armature of Claim 8 or 9,
Prior to the connecting step, a connected contacted part fixing step for holding the connected contacted part in a state where a plurality of the contacted parts are connected to the core, and
A method of manufacturing an armature comprising: a contacted part dividing step of dividing the connected contacted part to form the contacted part after the connecting step. An armature formed by the manufacturing method according to any one of claims 1 to 10 is arranged for a stator having permanent magnets having different polarities in the circumferential direction, and an anode is provided for the armature. A method of manufacturing a motor configured to supply power from a side power supply brush and a cathode side power supply,
The method for manufacturing a motor according to claim 1, wherein in the joining step, the teeth are joined on the outer peripheral side of each tooth, and the stator is assembled from the opposite side of the portion where the windings of the armature are joined in the axial direction. In the manufacturing method of the motor according to claim 11,
The number of magnetic poles P of the permanent magnet is an even number of 4 or more, the number of slots N between the teeth is P ± 2 (where N = 6 when P = 4), and the number of segments S provided in the commutator is N A method for manufacturing a motor, characterized in that x (P / 2). In the manufacturing method of the motor according to claim 11 or 12,
The number of magnetic poles P is set to 6, the number of slots N is set to 8, and the number of segments arranged in the circumferential direction on the outer peripheral surface of the commutator is set to 24. Method. A core in which a plurality of teeth are radially provided by combining a plurality of divided core members having two teeth opposed to each other by 180 °;
Windings wound around the teeth;
A commutator for rectifying the current to the winding;
In the armature provided with a rotating shaft fixed to the core and the commutator,
All the divided core members include a connecting portion that extends radially inward from a portion in the axial direction while avoiding one axial end side of the teeth, and an annular portion that is formed at the tip of the connecting portion and into which the rotating shaft is inserted. And the annular part is combined so as to be laminated at the coaxial center,
The connecting portion and the annular portion are positioned in the axial direction with respect to the teeth so that the axial positions of the teeth for each divided core member coincide with each other in a state where the divided core members are combined. An armature that is set differently for each divided core member.

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