JP4295691B2 - Rotating machine armature - Google Patents

Description

  The present invention relates to an armature of a rotary electric machine, and particularly to an improvement of production efficiency in an armature that is completed by combining iron cores divided in the circumferential direction.

  Conventionally, for the purpose of reducing the size and increasing the output of a rotating electrical machine, the structure of a stator, which is an armature with an increased winding density, is known by winding a laminated core divided in the circumferential direction. ing. For example, as described in Patent Document 1, winding is applied to each of the magnetic pole teeth divided in the circumferential direction for each pole tooth unit, and the uneven portions provided at the end portions of the magnetic pole teeth are fitted together. After the cylindrical shape, the magnetic teeth are connected and fixed by laser welding the end portions of the magnetic teeth in the stacking direction.

Japanese Patent No. 3355700 (paragraph 0014, FIG. 1 and FIG. 2)

  However, in the stator of the rotating electrical machine described in Patent Document 1 described above, since adjacent magnetic pole teeth are connected and fixed by laser welding, as many connecting and fixing operations as the number of magnetic pole teeth are required, productivity is not good. There was a problem.

  In addition, there is a problem that expensive laser welding equipment is required to assemble the stator. Furthermore, the stator is distorted by welding, which causes a problem of deteriorating the characteristics of the rotating electrical machine such as cogging and torque ripple.

  The present invention has been made to solve the above-described problems, and can be performed without using a special device and with good workability when assembling an armature of a rotating electric machine with divided magnetic pole teeth. Like that.

  In addition, an armature of a large-diameter rotating electrical machine having a large number of magnetic teeth (number of slots) can be easily and accurately assembled.

An armature of a rotating electrical machine according to a first aspect of the present invention has a yoke portion that is sequentially arranged in the circumferential direction of the rotating electrical machine and extends in the circumferential direction and a tooth portion that projects from the yoke portion in the radial direction of the rotating electrical machine. A first magnetic pole tooth and a second magnetic pole tooth disposed between the teeth of the first magnetic pole tooth, and a first engaging portion is provided at the end of the yoke portion of the first magnetic pole tooth. A second engaging portion that is in contact with the first engaging portion in the circumferential direction is provided at a root portion of the second magnetic pole tooth, and the first engaging portion of the first magnetic pole tooth is A notch provided at the end of the yoke portion of one magnetic pole tooth, a protrusion provided on one circumferential end surface of the notch, and a first engagement provided on the other circumferential end surface The projection portion and the first engagement straight portion have the same length in the axial direction, and one circumferential end surface and the other. The second engaging portion of the second magnetic pole tooth is configured to alternate with the circumferential end surface, and the groove portion provided on one circumferential end surface of the root portion of the second magnetic pole tooth The second engagement straight portion provided on the other circumferential end surface, and the groove portion and the second engagement straight portion have the same length in the axial direction, and one circumferential end surface and the other circumferential direction. The second engagement portion is configured to be alternated with the end face, and the second engagement portion is radially directed to the first engagement portion in a state where the first magnetic pole teeth and the second magnetic pole teeth are shifted by the same length in the axial direction. And the second engaging portion can be inserted and engaged with the first engaging portion in the axial direction after the insertion .

An armature of a rotating electrical machine according to a second aspect of the present invention has a yoke portion that is sequentially arranged in the circumferential direction of the rotating electrical machine and extends in the circumferential direction and a tooth portion that protrudes from the yoke portion in the radial direction of the rotating electrical machine. The first magnetic pole teeth and the second magnetic pole teeth disposed between the teeth of the first magnetic pole teeth, the first engaging portion at the end of the yoke portion of the first magnetic pole teeth A second engaging portion that comes into contact with the first engaging portion from the circumferential direction is provided at the base portion of the second magnetic pole tooth, and the first engaging portion of the first magnetic pole tooth is , A notch provided at the end of the yoke portion of the first magnetic teeth, a groove provided at one circumferential end surface of the notch, and a first engagement provided at the other circumferential end surface The groove portion and the first engagement straight portion have the same length in the axial direction and one circumferential end face and the other. The second engaging portion of the second magnetic pole tooth is configured to alternate with the circumferential end surface, and the protrusion provided on one circumferential end surface of the root portion of the second magnetic pole tooth And a second engagement straight portion provided on the other circumferential end surface, and the projection and the second engagement straight portion have the same length in the axial direction and one circumferential end surface and the other. is configured to be alternately between the circumferential end faces, the second engagement portion to the first engagement portion in a state shifted same length and the first pole tooth and the second pole tooth in the axial direction In addition to being able to be inserted from the radial direction, the second engaging portion can be inserted and engaged with the first engaging portion in the axial direction after insertion .

An armature of a rotating electrical machine according to a third aspect of the present invention includes a yoke portion that is sequentially arranged in the circumferential direction of the rotating electrical machine and extends in the circumferential direction and a tooth portion that protrudes from the yoke portion in the radial direction of the rotating electrical machine. A first magnetic pole tooth and a second magnetic pole tooth disposed between the teeth of the first magnetic pole tooth, the end of the yoke portion of the first magnetic pole tooth, An engagement portion composed of a hook-shaped engagement piece portion formed in the notch is provided, and a base portion of the second magnetic pole tooth is configured with a hook-shaped joint piece portion that engages with the engagement portion . The engaging portion of the first magnetic pole tooth has a hook-shaped engaging piece portion and an engaging straight portion without the hook shape having the same length in the axial direction and one circumferential direction. It is configured to alternate between the end face and the other circumferential end face, and the joint portion of the second magnetic pole teeth is a bowl-shaped joint piece portion. The first straight magnetic teeth and the second magnetic pole teeth are configured such that the joining straight portion that has lost the flange shape has the same length in the axial direction and alternates between one circumferential end face and the other circumferential end face. Can be inserted from the radial direction into the first engaging portion with the same length shifted in the axial direction, and the second joining portion can be inserted axially into the first engaging portion after insertion. It is characterized by being able to be inserted and engaged .

  An armature of a rotating electrical machine according to a fourth aspect of the present invention includes a yoke portion that is sequentially arranged in the circumferential direction of the rotating electrical machine and extends in the circumferential direction and a tooth portion that protrudes from the yoke portion in the radial direction of the rotating electrical machine. A first magnetic pole tooth and a second magnetic pole tooth disposed between the teeth of the first magnetic pole tooth, the end of the yoke portion of the first magnetic pole tooth, An engagement part composed of a shape restricting part formed in the notch is provided, and a base part of the second magnetic pole tooth is provided with a joint part composed of a plastic deformation part fitted to the shape restricting part, A fall prevention groove is provided near the center of the engaging portion of the first magnetic pole tooth, a fall prevention protrusion is provided near the center of the joint portion of the second magnetic pole tooth, and the joint portion is formed in the engaging portion from the radial direction. When the press-fitting is performed, the fall prevention protrusion is brought into contact with the fall prevention groove.

According to the armature of the rotating electrical machine of the first invention, the first engaging portion of the first magnetic pole teeth includes the notch provided at the end of the yoke portion of the first magnetic pole tooth, Consists of a protrusion provided on one circumferential end surface of the notch and a first engagement straight portion provided on the other circumferential end surface, and the protrusion and the first engagement straight portion are in the axial direction. And the second engagement portion of the second magnetic pole tooth is the base of the second magnetic pole tooth. The groove portion provided on one circumferential end surface of the portion and the second engagement straight portion provided on the other circumferential end surface, the groove portion and the second engagement straight portion being the same in the axial direction It has a length so that it is alternated between one circumferential end face and the other circumferential end face. It is, together with the second engaging portion can be inserted from the radial direction to the first engagement portion in a state shifted same length and the first pole tooth and the second pole tooth in the axial direction, the second after insertion Since the engaging portion can be inserted and engaged with the first engaging portion in the axial direction, it is possible to prevent delamination during insertion of the magnetic teeth and improve workability .

According to the armature of the rotating electrical machine according to the second invention, the first engagement portion of the first magnetic pole teeth includes the notch provided at the end of the yoke portion of the first magnetic pole tooth, It is composed of a groove portion provided on one circumferential end surface of the notch and a first engagement straight portion provided on the other circumferential end surface, and the groove portion and the first engagement straight portion are arranged in the axial direction. The second engagement portion of the second magnetic pole teeth is configured to alternate between one circumferential end surface and the other circumferential end surface with the same length, and the base portion of the second magnetic pole teeth. And a second engaging straight portion provided on the other circumferential end surface, and the protruding portion and the second engaging straight portion are arranged in the axial direction. To alternate between one circumferential end face and the other circumferential end face with the same length Is configured, with the second engaging portion can be inserted from the radial direction to the first engagement portion in a state shifted same length and the first pole tooth and the second pole tooth in the axial direction, the after insertion Since the two engaging portions can be inserted and engaged with the first engaging portion in the axial direction, it is possible to prevent delamination during insertion of the magnetic teeth and improve workability.

According to the armature of the rotating electrical machine according to the third aspect of the invention, the end portion of the yoke portion of the first magnetic pole tooth is constituted by a notch and a hook-shaped engagement piece portion formed in the notch. engaging portions are provided to be, in the root portion of the second pole tooth, the joint is provided comprised of hook-shaped joint piece that engages with the engagement portion, the engagement of the first pole tooth The joint portion is configured such that the hook-shaped engagement piece portion and the engagement straight portion without the hook shape have the same length in the axial direction and alternate between one circumferential end surface and the other circumferential end surface. The joint portion of the second magnetic pole teeth has a flange-shaped joint piece portion and a joint straight portion having the flange shape eliminated in the axial direction with one circumferential end surface and the other circumferential end surface. The first magnetic pole teeth and the second magnetic pole teeth are shifted by the same length in the axial direction. In this state, the second joint portion can be inserted into the first engagement portion from the radial direction, and the second joint portion can be inserted and engaged with the first engagement portion in the axial direction after insertion. Therefore, it is possible to prevent delamination during insertion of magnetic pole teeth and improve workability.

  According to the armature of the rotating electrical machine according to the fourth aspect of the invention, the end portion of the yoke portion of the first magnetic pole teeth is formed with a notch and a shape restricting portion formed in the notch. A joint is formed at the base of the second magnetic teeth, which is composed of a plastic deformation portion that fits into the shape restricting portion, and falls near the center of the engaging portion of the first magnetic teeth. Providing a groove for prevention, a protrusion for preventing fall is provided near the center of the joint of the second magnetic teeth, and when the joint is pressed into the engaging part from the radial direction, the protrusion for preventing fall in the groove for preventing fall Since the portions are in contact with each other, not only the radial deviation of the magnetic pole teeth but also the circumferential deviation can be prevented, and the coupling can be firmly fixed.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

Embodiment 1 FIG.
1 is a plan view showing an armature of a rotary electric machine according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view taken along line II-II in FIG. Here, the armature 1 of a rotating electrical machine that functions as a stator disposed via a predetermined gap with respect to the rotor 2 configured integrally with the rotor shaft 3 will be described as an example. In contrast to this, the present invention can be similarly applied to an armature that functions as a rotor integrally formed with a rotor shaft.

  1 and 2, the armature 1 includes a plurality of first magnetic pole teeth 110 that are sequentially arranged in the circumferential direction of the rotating electric machine, and a second magnetic pole that is disposed between the first magnetic pole teeth 110. Teeth 120, drive coil 6 wound around tooth portion 111 of first magnetic pole tooth 110 and tooth portion 121 of second magnetic pole tooth 120, and outer periphery of first magnetic pole tooth 110 arranged in the circumferential direction A protective jacket 9 is provided. A rotor 2 having a rotor shaft 3 is disposed inside the armature 1 that is a stator.

  FIG. 3 is a plan view showing the configuration of the first magnetic pole tooth 110 in FIG. 1, and FIG. 4 is a plan view showing the configuration of the second magnetic pole tooth in FIG. First, as shown in FIG. 3, the first magnetic pole tooth 110 includes a yoke portion 112 extending in the circumferential direction and a tooth portion 111 protruding radially inward from a substantially central position of the yoke portion 112. Thus, the drive coil 6 is wound around the tooth portion 111 via the insulator 7. Then, at both end portions 113 of the yoke portion 112, a notch 114 provided with a groove portion 115 constituting a first engaging portion 117 described later and an end surface 116 that comes into contact with the adjacent first magnetic pole teeth are formed. Has been. Further, as shown in FIG. 5, the first magnetic pole teeth 110 are integrally configured by a caulking 8 by laminating a predetermined number of electromagnetic steel plates and the like.

  Next, as shown in FIG. 4, the second magnetic pole teeth 120 constitute a tooth portion 121 having the same function as the tooth portion 111 of the first magnetic pole tooth 110 and a second engaging portion 123 described later. The drive coil 6 is wound around the tooth portion 121 via the insulator 7. The protrusion portion 122 is provided at the root portion of the tooth portion 121. Further, as shown in FIG. 6, the second magnetic pole teeth 120 are integrally configured by the caulking 8 by laminating a predetermined number of electromagnetic steel plates and the like.

  In the present embodiment, as shown in FIGS. 7 and 8, a notch 114 provided in the yoke end 113 of the first magnetic pole tooth 110 and a groove 115 provided in the notch 114 are The first engaging portion 117 is formed by the contact of the end face 116 of the first magnetic pole tooth 110 adjacent in the circumferential direction. And the protrusion part 122 which comprises the 2nd engagement part 123 of the 2nd magnetic teeth 120 is contact | abutted from the circumferential direction to the groove part 115 of this 1st engagement part 117. FIG.

  Next, the assembly process of the armature 1 of the rotating electrical machine of the present embodiment will be described. First, as shown in FIGS. 3 and 4, the insulator 7 is attached to the tooth portion 111 of the first magnetic pole tooth 110 and the tooth portion 121 of the second magnetic pole tooth 120, and then the drive coil 6 is wound. In this case, since the winding operation of the coil is performed with respect to a single magnetic pole tooth, high-density winding is possible.

  Next, as shown in FIG. 9, the first magnetic pole teeth 110 and the second magnetic pole teeth 120 are alternately arranged in an annular shape. That is, it arrange | positions so that the projection part 122 of the 2nd magnetic teeth 120 may contact | abut to the groove part 115 of the 1st magnetic pole tooth 110, and then, the 1st magnetic pole is contacted with the projection part 122 of the 2nd magnetic pole teeth 120. It arrange | positions so that the groove part 115 of the teeth 110 may contact | abut, and arrange | positions sequentially in the circumferential direction in this way.

  As described above, when the first magnetic pole teeth 110 and the second magnetic pole teeth 120 are alternately arranged in the circumferential direction, finally, as shown in FIG. 10, the first magnetic pole teeth 110 are arranged in an annular shape. However, one second magnetic pole tooth 120 remains without being arranged in the circumferential direction. Therefore, as shown in FIGS. 11 to 13, only the last second magnetic pole tooth 120 </ b> A is inserted between the first magnetic pole teeth 110 from the axial direction of the rotating electric machine, and the armature 1 is assembled.

  Thereafter, as shown in FIG. 1, the outer periphery is fitted into the jacket 9 to apply pressure to the armature 1 and firmly fix it.

  As described above, according to the first embodiment of the present invention, the first magnetic pole teeth 110 and the second magnetic pole teeth 120 disposed between the teeth 111 of the first magnetic pole teeth 110 are provided. The first engaging portion 117 is provided at the end of the yoke portion 112 of the magnetic pole tooth 110, and the second engaging portion 117 can contact the first engaging portion 117 from the circumferential direction at the root portion of the second magnetic pole tooth 120. Since the engaging portion 123 is provided, the assembly work of the magnetic teeth of the armature becomes easy, and the assembly workability can be improved.

  Further, the armature 1 is assembled by engaging the first engaging portion 117 provided on the first magnetic pole tooth 110 with the second engaging portion 123 provided on the second magnetic pole tooth 120. Therefore, the armature 1 can be assembled without introducing a special device such as a conventional expensive laser welding apparatus, and the armature 1 is not distorted by the assembly work.

  Moreover, since the groove part 115 of the 1st magnetic pole tooth 110 and the projection part 122 of the 2nd magnetic pole tooth 120 are engaging, the shift | offset | difference of the radial direction of a magnetic pole tooth can be prevented.

  In the above description, the first magnetic pole teeth 110 and the second magnetic pole teeth 120 are both laminated and integrated with steel plates. However, the present invention is not limited to this. Even those formed by means such as injection molding can be similarly applied.

Embodiment 2. FIG.
14 is a plan view showing an engaging portion of an armature of a rotary electric machine according to Embodiment 2 of the present invention, and FIG. 15 is an enlarged plan view showing the engaging portion of FIG.

  In the first embodiment, the first engaging portion 117 of the first magnetic pole tooth 110 is configured by the groove 115, and the second engaging portion 123 of the second magnetic pole tooth 120 is configured by the protruding portion 122. In the embodiment, as shown in FIG. 14 and FIG. 15, the first engaging portion 117 of the first magnetic pole tooth 110 is the projection 118 provided in the notch 114, and the second magnetic tooth 120 is the first engaging portion 117. The second engaging portion 123 is constituted by a groove portion 124 provided at the root portion. Then, the groove portion 124 of the second engagement portion 123 is connected to the projection portion 118 of the first engagement portion 117 formed by the contact of the end surface 116 of the first magnetic pole tooth 110 adjacent in the circumferential direction. It is comprised so that it can contact | abut from a direction. Other configurations and assembly steps are the same as those described in the first embodiment.

  As described above, according to the second embodiment of the present invention, the first magnetic pole teeth 110 and the second magnetic pole teeth 120 disposed between the teeth 111 of the first magnetic pole teeth 110 are provided. The first engaging portion 117 is provided at the end of the yoke portion 112 of the magnetic pole tooth 110, and the second engaging portion 117 can contact the first engaging portion 117 from the circumferential direction at the root portion of the second magnetic pole tooth 120. Since the engaging portion 123 is provided, the assembly work of the magnetic teeth of the armature becomes easy, and the assembly workability can be improved.

  Further, the armature 1 is assembled by engaging the first engaging portion 117 provided on the first magnetic pole tooth 110 with the second engaging portion 123 provided on the second magnetic pole tooth 120. Therefore, the armature 1 can be assembled without introducing a special device such as a conventional expensive laser welding apparatus, and the armature 1 is not distorted by the assembly work.

  Moreover, since the projection part 118 of the 1st magnetic pole tooth 110 and the groove part 124 of the 2nd magnetic pole tooth 120 are engaging, the shift | offset | difference of the radial direction of a magnetic pole tooth can be prevented.

Embodiment 3 FIG.
In the first and second embodiments, as shown in FIGS. 10 to 13, when assembling the armature 1 of the rotating electrical machine, one second magnetic pole tooth 120 remains without being arranged in the circumferential direction, and the last second The magnetic pole teeth 120A are inserted and assembled from the axial direction. When the second magnetic pole teeth 120A are inserted in the axial direction, if the axial lengths (lamination stacking width) of the first and second magnetic pole teeth are increased, the insertion amount in the axial direction is increased and workability is improved. Deteriorate. Further, the first engaging portion 117 of the first magnetic pole tooth 110 and the second engaging portion 123 of the second magnetic pole tooth 120 rub against each other, and when the thin steel plates are stacked by the caulking 8, the steel plates are peeled off. there is a possibility.

  The third embodiment of the present invention can adjust the amount of insertion in the axial direction even when the axial length (stacked stacking width) of the magnetic teeth becomes large, and prevents peeling of the layers during insertion. The present invention provides a structure that does not impair the insertion workability.

  That is, the first engaging portion 117 of the first magnetic pole tooth 110 of the present embodiment includes a notch 114 provided at the end of the yoke portion of the first magnetic pole tooth 110 and the notch 114. The projection 118 is provided on one circumferential end surface and the first engagement straight portion 119 is provided on the other circumferential end surface, and the projection 118 and the first engagement straight portion 119 are provided. The second engagement portions 123 of the second magnetic pole teeth 120 are configured to be alternately arranged with the same length in the axial direction, and are arranged on one circumferential end face of the root portion of the second magnetic pole teeth 120. The groove 124 and the second engagement straight portion 125 provided on the other circumferential end surface are configured such that the groove 124 and the second engagement straight portion 125 have the same length in the axial direction. Alternating It is configured to.

  FIG. 16 is a perspective view showing an armature of a rotary electric machine according to Embodiment 3 of the present invention. In the figure, the first engaging portion 117 of the first magnetic pole tooth 110 is provided with a protrusion 118 on one circumferential end surface of the notch, and the first engaging straight portion 119 on the other circumferential end surface. Provide. 16 is configured by laminating a plurality of thin steel plates, except for the protrusion 118 and the first engagement straight portion 119, and the center line of the tooth portion 111. The shape is symmetrical about the axis. Then, by laminating a predetermined number N of thin steel plates of the first magnetic pole teeth 110 and further laminating a predetermined number of N sheets so as to be front, back, front, back,. 118 and first engaging straight portions 119 are alternately provided in the stacking direction.

  In FIG. 16, in the second joint 123 of the second magnetic pole tooth 120, a groove 124 is provided on one circumferential end face of the root portion, and the second engagement straight part 125 is provided on the other circumferential end face. Is provided. Then, a predetermined number N of the second magnetic pole teeth 120 are stacked, and a predetermined number N of the second magnetic teeth 120 are stacked so as to be front, back, front, back, etc. The engaging straight portions 125 are alternately provided in the stacking direction. The number of times of stacking the front and back is determined by the stacking width and the predetermined number N.

  Next, the process of inserting the second magnetic pole teeth 120 into the first magnetic pole teeth 110 from the axial direction will be described. First, as shown in FIG. 17, the first magnetic pole teeth 120 and the second magnetic pole teeth 120 are shifted from each other by N pieces, and the second magnetic pole teeth 120 are inserted from the radial direction, thereby shifting the first magnetic pole teeth 120. The protrusion 118 of the tooth 110 abuts the straight portion 125 of the second magnetic pole tooth 120, and the straight portion 114 of the first magnetic pole tooth 110 abuts the groove portion 124 of the second magnetic pole tooth 120. Thereafter, as shown in FIG. 18, the second magnetic pole teeth 120 are inserted in the axial direction by the number N of stacked layers, so that the protrusions 118 of the first magnetic pole teeth 110 and the grooves 124 of the second magnetic pole teeth 120 are formed. Engage.

  As described above, according to the third embodiment of the present invention, the straight portion is provided in the engaging portion of the first and second magnetic teeth, and the straight portion is not straight in the axial direction (stacking direction) of the magnetic teeth. By configuring the portions alternately, the amount of axial insertion when the second magnetic teeth are inserted into the first magnetic teeth can be adjusted, for example, by a predetermined number N of stacked layers. The amount can be reduced. As a result, it is possible to prevent delamination during insertion of the magnetic pole teeth and improve workability.

  Further, as shown in FIG. 19, similarly to the first and second embodiments, the first magnetic pole teeth 110 and the second magnetic pole teeth 120 are alternately arranged in the circumferential direction, that is, the protrusions of the first magnetic pole teeth 110. 118 and the groove portion 124 of the second magnetic pole tooth 120 can be arranged in the circumferential direction so that only the last second magnetic pole tooth needs to be inserted from the axial direction.

Embodiment 4 FIG.
In the fourth embodiment of the present invention, as in the third embodiment, the axial insertion amount can be adjusted even when the axial length (stacked stacking width) of the magnetic teeth is increased. It is intended to provide a structure that prevents the peeling of the laminate and the like, and does not impair the insertion workability.

  FIG. 20 is a perspective view showing an armature of a rotary electric machine according to Embodiment 4 of the present invention. In the figure, the first engaging portion 117 of the first magnetic pole tooth 110 includes a notch 114 provided at the end of the yoke portion of the first magnetic pole tooth 110 and one circumferential direction of the notch 114. The groove 115 provided on the end surface and the first engagement straight portion 115A provided on the other circumferential end surface are configured so that the groove 115 and the first engagement straight portion 115A have the same length in the axial direction. And the second engaging portion 123 of the second magnetic pole teeth 120 is a protrusion 122 provided on one circumferential end face of the root portion of the second magnetic pole teeth 120. And a second engagement straight portion 122A provided on the other circumferential end surface, and the protrusion 122 and the second engagement straight portion 122A are alternately arranged with the same length in the axial direction. It is configured.

  As described above, according to the fourth embodiment of the present invention, as in the third embodiment, the straight portions are provided in the engaging portions of the first and second magnetic teeth and the straight portions are arranged in the stacking direction of the magnetic teeth. Is configured so that non-straight portions are alternated, the amount of axial insertion when the second magnetic pole teeth are inserted into the first magnetic pole teeth can be adjusted, for example, by a predetermined number N of stacked layers, The amount of axial insertion can be reduced. As a result, it is possible to prevent delamination during insertion of the magnetic pole teeth and improve workability.

Embodiment 5 FIG.
FIG. 21 is a plan view showing the engagement of the armature of the rotating electrical machine as a premise of Embodiment 5 of the present invention. In the figure, a notch 1104 is provided in the yoke end portion 113 of the first magnetic pole tooth 110, and a hook-shaped engagement piece 1109 is provided in the notch 1104 so that the end face 1106 of the first magnetic pole tooth 110 abuts. Thus, the engaging portion 1100 is formed. On the other hand, a joint part 1200 having a hook-shaped joint piece part 1209 is formed at the base part of the second magnetic pole tooth 120. And it is comprised so that the junction part 1200 of the 2nd magnetic teeth 120 may fit in the engaging part 1100 of the 1st magnetic pole teeth 110. FIG. By configuring in this way, not only the radial deviation of the magnetic pole teeth but also the circumferential deviation can be prevented, and the coupling can be firmly fixed.

  However, in the structure of FIG. 21, it is necessary to insert all the second magnetic pole teeth 120 from the axial direction so that the joint portion 1200 is fitted to the engaging portion 1100 of the first magnetic pole tooth 110.

  In Embodiment 5 of the present invention, in the armature engagement structure shown in FIG. 21, the insertion amount in the axial direction can be adjusted even when the axial length (stacked stacking width) of the magnetic teeth becomes large. It is intended to provide a structure that prevents peeling of the laminate and does not impair workability.

  FIG. 22 is a perspective view showing an armature of a rotary electric machine according to Embodiment 5 of the present invention. As shown in the figure, in the engagement portion 1100 of the first magnetic pole tooth 110, one engagement piece portion is provided with a flange shape 1109, and the other engagement piece portion is provided with an engagement straight portion 1110. Then, a predetermined number N of thin steel plates of the first magnetic pole teeth 110 having a symmetrical shape are laminated except for the engaging piece portion 1109 and the engaging straight portion 1110. Further, a stack of a predetermined number N is stacked so as to be front, back, front, back, and so on.

  Further, in the joint portion 1200 of the second magnetic pole tooth 120, a hook shape 1209 is provided on one joint piece portion, and a joint straight portion 1210 is provided on the other joint piece portion. Then, a predetermined number N of thin steel plates of the second magnetic pole teeth 120 having a bilaterally symmetric shape except for the joining piece portion 1209 and the joining straight portion 1210 are laminated. Further, a stack of a predetermined number N is stacked so as to be front, back, front, back, and so on. The number of front and back sides is determined by the stacking width and the predetermined number N.

  Next, the process of inserting the second magnetic pole teeth 120 into the first magnetic pole teeth 110 from the axial direction will be described. First, as shown in FIG. 23, the non-straight side of the engagement piece 1109 of the first magnetic pole tooth 110 is brought into contact with the joining straight portion 1210 of the second magnetic pole tooth 120, and the first magnetic pole tooth 110 The first magnetic pole teeth 110 and the second magnetic pole teeth 120 are shifted in the radial direction with the number of stacked N sheets so that the engagement straight portion 1110 and the non-straight joining piece portion 1209 of the second magnetic pole teeth 120 are in contact with each other. Insert from. Thereafter, as shown in FIG. 24, the second magnetic pole teeth 120 are inserted in the axial direction by the number N of stacked layers, and the engaging portion 1100 of the first magnetic pole teeth 110 and the joint portion 1200 of the second magnetic pole teeth 120 are connected. Link.

  As described above, according to the fifth embodiment of the present invention, in the armature provided with the engaging portion 1100 in the first magnetic pole tooth 110 and the joint portion 1200 in the second magnetic pole tooth 120, the first and second The magnetic pole teeth are provided with a straight portion in the engaging portion and the joining portion, and the straight portion and the non-straight portion are alternately arranged in the stacking direction of the magnetic teeth. The amount of insertion in the axial direction when inserted into the first magnetic pole teeth can be adjusted, for example, by a predetermined number N of stacked layers, and the amount of insertion in the axial direction can be reduced. As a result, it is possible to prevent delamination during insertion of the magnetic pole teeth and improve workability.

Embodiment 6 FIG.
In the first to fifth embodiments, when the armature 1 is assembled, it is necessary to insert at least one second magnetic pole tooth 120 from the axial direction. The sixth embodiment of the present invention is intended to assemble the armature 1 by being inserted into the first magnetic pole teeth from the radial direction of all the second magnetic pole teeth 120, and provides a structure that does not impair workability. To do.

  25 and 26 are a plan view and an enlarged plan view showing an engagement portion of an armature of a rotary electric machine according to Embodiment 6 of the present invention. In the drawing, an engaging portion 1300 formed between adjacent first magnetic pole teeth 110 includes a notch 1400, a shape regulating portion 1312 that is a tapered groove portion formed in a direction away from the end face 1106 of the magnetic teeth, A protrusion 1314 provided near the entrance of the shape restricting portion 1312 and a fall-preventing groove 1313 provided near the center of the engaging portion. The joint 1500 formed at the root of the second magnetic pole teeth 120 includes a plastic deformation portion 1527 protruding from both ends of the root portion, a groove portion 1528 provided near the root of the plastic deformation portion 1527, and the vicinity of the center of the root portion. It is comprised by the protrusion part 1529 for a fall prevention provided in FIG. Then, by inserting the second magnetic pole teeth 120 into the first magnetic pole teeth 110 from the radial direction, the plastic deformation portion 1527 of the second magnetic pole teeth 120 contacts the shape restricting portion 1312 of the first magnetic pole teeth 110. It is configured as follows.

  27 and 28 are plan views showing the engaging operation of the armature of the rotary electric machine according to Embodiment 6 of the present invention. As shown in the figure, the plastic deformation portion 1527 of the second magnetic pole teeth 120 is made to press the joining portion 1500 of the second magnetic pole teeth 120 into the engaging portion 1300 of the first magnetic pole teeth 110 so that the first magnetic pole teeth 120 are pressed. The teeth 110 are engaged with each other while being deformed in a tapered shape along the shape restricting portion 1312 of the teeth 110. At this time, the protrusion 1314 provided near the entrance of the shape restricting portion 1312 fits into the groove 1528 provided near the base of the plastic deformation portion 1527. Further, a fall prevention protrusion 1529 provided near the center of the root portion of the second magnetic teeth 120 is applied to the fall prevention groove 1313 provided near the center of the engaging portion 1300 of the first magnetic pole teeth 110. Touch.

  As described above, according to the present embodiment, the first magnetic pole tooth 110 is provided with the engaging portion 1300 including the notch 1400 and the shape restricting portion 1312 formed in the notch 1400. Since the joint portion 1500 including the plastic deformation portion 1527 fitted to the shape restricting portion 1312 is provided at the root portion of the second magnetic pole teeth 120, the first and second magnetic pole teeth 110, 120 The connecting and fixing can be performed only by inserting the second magnetic pole teeth 120 from the radial direction, and the assembling workability is improved.

  Further, the protrusion 1314 and the groove 1528 that are fitted by plastic deformation can prevent displacement in the radial direction.

  Further, the falling prevention groove 1313 provided in the vicinity of the center of the engaging portion 1300 and the falling prevention protrusion 1529 provided in the vicinity of the center of the joining portion 1500 come into contact with each other, whereby the circumferential direction of the second magnetic pole teeth 120 is reached. Can be prevented from falling down.

Embodiment 7 FIG.
In the sixth embodiment, the shape restricting portion 1312 provided in the engaging portion 1300 of the first magnetic pole tooth 110 is a groove portion tapered in a direction away from the end face 1106 of the first magnetic pole tooth 110, and the second magnetic pole The example in which the plastic deformation portion 1527 provided in the joint portion 1500 of the tooth 120 is plastically deformed in the direction away from the end face 1106 of the first magnetic pole tooth 110 has been described.

  In the present embodiment, as shown in FIGS. 28 and 29, the shape restricting portion 1312 provided in the engaging portion 1300 of the first magnetic pole tooth 110 is tapered in a direction approaching the end face 1106 of the first magnetic pole tooth 110. The plastic deformation portion 1527 provided in the joint portion 1500 of the second magnetic pole teeth 120 is plastically deformed in a direction approaching the end surface 1106.

  According to the structure of the present embodiment, the same effect as in the sixth embodiment can be obtained. In this case, not only the radial deviation of the magnetic pole teeth but also the circumferential deviation can be prevented, and the magnetic teeth can be firmly connected and fixed.

Embodiment 8 FIG.
Moreover, although the said Embodiment 1-7 demonstrated the example applied to what is called an inner rotor structure, as shown in FIG.31 and FIG.32, it can apply also to the structure of an outer rotor.

  31 and 32, the armature 1 includes a plurality of first magnetic pole teeth 110 that are sequentially arranged in the circumferential direction of the rotating electric machine, and a second magnetic pole that is disposed between the first magnetic pole teeth 110. Teeth 120, tooth portion of first magnetic pole tooth 110 and drive coil 6 wound around second magnetic pole tooth 120, and jacket 9 attached to first magnetic pole tooth 110 are provided. A rotor 2 is disposed outside the armature 1 that is a stator. In such a structure, the engagement structure of the first magnetic pole teeth 110 and the second magnetic pole teeth 120 described in the first to seventh embodiments can be applied.

  In the above embodiment, the driving coil is wound around the tooth portion of the first and second magnetic pole teeth 110, 120. However, the driving is performed on one of the first or second magnetic pole teeth 110, 120. A coil may be wound so as to function as a main pole tooth, and the drive coil may not be wound around the other of the first or second magnetic pole teeth 110 and 120 so as to function as an auxiliary pole tooth.

It is a top view which shows the armature of the rotary electric machine by Embodiment 1 of this invention. It is a figure which shows the II-II line cross section of FIG. It is a top view which shows the 1st magnetic pole tooth by Embodiment 1 of this invention. It is a top view which shows the 2nd magnetic pole tooth by Embodiment 1 of this invention. It is a side view which shows the laminated structure of the 1st magnetic pole tooth by Embodiment 1 of this invention. It is a side view which shows the laminated structure of the 2nd magnetic pole tooth by Embodiment 1 of this invention. It is a top view which shows the engaging part of the armature of the rotary electric machine by Embodiment 1 of this invention. It is an enlarged plan view which shows the engaging part of the armature of the rotary electric machine by Embodiment 1 of this invention. It is a top view which shows the assembly process of the armature of the rotary electric machine by Embodiment 1 of this invention. It is a top view which shows the assembly process of the armature of the rotary electric machine by Embodiment 1 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 1 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 1 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 1 of this invention. It is a top view which shows the engaging part of the armature of the rotary electric machine by Embodiment 2 of this invention. It is an enlarged plan view which shows the engaging part of the armature of the rotary electric machine by Embodiment 2 of this invention. It is a perspective view which shows the armature of the rotary electric machine by Embodiment 3 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 3 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 3 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 3 of this invention. It is a perspective view which shows the armature of the rotary electric machine by Embodiment 4 of this invention. It is a top view which shows the armature of the rotary electric machine used as the premise of Embodiment 5 of this invention. It is a perspective view which shows the armature of the rotary electric machine by Embodiment 5 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 5 of this invention. It is a perspective view which shows the assembly process of the armature of the rotary electric machine by Embodiment 5 of this invention. It is a top view which shows the engaging part of the armature of the rotary electric machine by Embodiment 6 of this invention. It is an enlarged plan view which shows the engaging part of the armature of the rotary electric machine by Embodiment 6 of this invention. It is a top view which shows the engagement operation | movement of the armature of the rotary electric machine by Embodiment 6 of this invention. It is a top view which shows the engagement operation | movement of the armature of the rotary electric machine by Embodiment 6 of this invention. It is a top view which shows the engagement operation | movement of the armature of the rotary electric machine by Embodiment 7 of this invention. It is a top view which shows the engagement operation | movement of the armature of the rotary electric machine by Embodiment 7 of this invention. It is a top view which shows the armature of the rotary electric machine by Embodiment 8 of this invention. It is a figure which shows the XXXII-XXXII line | wire cross section of FIG.

Explanation of symbols

1 armature, 110 first magnetic pole teeth, 120 second magnetic pole teeth,
114 notches, 115 grooves, 117 first engaging portions, 118 protrusions,
119 1st engagement straight part, 122 protrusion part, 123 2nd engagement part,
124 groove portion, 125 second engagement straight portion, 1100 engagement portion,
1104 Notch, 1109 engagement piece, 1110 engagement straight,
1200 joint part, 1209 joint piece part, 1210 joint straight part,
1300 engaging portion, 1312 shape regulating portion, 1313 falling prevention groove portion,
1314 Projection part, 1500 joint part, 1527 Plastic deformation part, 1528 Groove part,
1529 Protrusion for preventing fall.

Claims (7)

A first magnetic pole tooth having a yoke portion sequentially arranged in the circumferential direction of the rotating electrical machine and extending in the circumferential direction; and a tooth portion protruding from the yoke portion in the radial direction of the rotating electrical machine; and the first magnetic pole A second magnetic pole tooth disposed between the teeth of the tooth,
A first engagement portion is provided at an end of the yoke portion of the first magnetic pole tooth, and a root portion of the second magnetic pole tooth is in contact with the first engagement portion from the circumferential direction. Two engaging portions are provided ,
The first engaging portion of the first magnetic pole teeth includes a notch provided at an end of the yoke portion of the first magnetic pole tooth and a protrusion provided on one circumferential end surface of the notch. And a first engagement straight portion provided on the other circumferential end surface, and the projection and the first engagement straight portion have the same length in the axial direction, and one circumferential end surface and the other And is configured to alternate with the circumferential end face
The second engaging portion of the second magnetic pole teeth includes a groove portion provided on one circumferential end surface of the root portion of the second magnetic pole tooth and a second engaging portion provided on the other circumferential end surface. The groove portion and the second engagement straight portion are configured to alternate between one circumferential end surface and the other circumferential end surface with the same length in the axial direction,
The second engaging portion can be inserted into the first engaging portion from the radial direction in a state where the first magnetic pole teeth and the second magnetic pole teeth are shifted in the axial direction by the same length. An armature for a rotating electrical machine, wherein the second engaging portion can be inserted and engaged with the first engaging portion in the axial direction after insertion . A first magnetic pole tooth having a yoke portion sequentially arranged in the circumferential direction of the rotating electrical machine and extending in the circumferential direction; and a tooth portion protruding from the yoke portion in the radial direction of the rotating electrical machine; and the first magnetic pole A second magnetic pole tooth disposed between the teeth of the tooth,
A first engagement portion is provided at an end of the yoke portion of the first magnetic pole tooth, and a root portion of the second magnetic pole tooth is in contact with the first engagement portion from the circumferential direction. Two engaging portions are provided,
The first engaging portion of the first magnetic pole teeth includes a notch provided at an end portion of the yoke portion of the first magnetic pole tooth, and a groove portion provided on one circumferential end surface of the notch. And a first engagement straight portion provided on the other circumferential end surface, the groove portion and the first engagement straight portion having the same length in the axial direction and one circumferential end surface and the other circumference. It is configured to alternate with the direction end face,
The second engaging portion of the second magnetic pole tooth includes a protrusion provided on one circumferential end surface of the root portion of the second magnetic pole tooth and a second engaging portion provided on the other circumferential end surface. The projecting portion and the second engagement straight portion are configured to alternate between one circumferential end surface and the other circumferential end surface having the same length in the axial direction.
The second engaging portion can be inserted into the first engaging portion from the radial direction in a state where the first magnetic pole teeth and the second magnetic pole teeth are shifted in the axial direction by the same length. An armature for a rotating electrical machine, wherein the second engaging portion can be inserted and engaged with the first engaging portion in the axial direction after insertion . A first magnetic pole tooth having a yoke portion sequentially arranged in the circumferential direction of the rotating electrical machine and extending in the circumferential direction; and a tooth portion protruding from the yoke portion in the radial direction of the rotating electrical machine; and the first magnetic pole A second magnetic pole tooth disposed between the teeth of the tooth,
At the end portion of the yoke portion of the first magnetic pole teeth, an engagement portion is provided that includes a notch and a hook-shaped engagement piece portion formed in the notch,
The base part of the second magnetic pole tooth is provided with a joint part constituted by a hook-shaped joint piece part engaged with the engagement part,
The engaging portion of the first magnetic pole teeth has the hook-shaped engaging piece portion and the engaging straight portion having the hook shape eliminated in the same length in the axial direction, one circumferential end surface and the other circumferential direction. It is configured to alternate with the end face,
The joint portion of the second magnetic pole teeth is formed such that the hook-shaped joint piece portion and the joint straight portion without the hook shape have the same length in the axial direction and one circumferential end surface and the other circumferential end surface. Is configured to alternate with
The second joint portion can be inserted into the first engagement portion from the radial direction in a state where the first magnetic pole teeth and the second magnetic pole teeth are shifted in the axial direction by the same length, and the insertion An armature for a rotating electrical machine, wherein the second joining portion can be inserted into the first engaging portion in the axial direction later and engaged therewith . A first magnetic pole tooth having a yoke portion sequentially arranged in the circumferential direction of the rotating electrical machine and extending in the circumferential direction; and a tooth portion protruding from the yoke portion in the radial direction of the rotating electrical machine; and the first magnetic pole A second magnetic pole tooth disposed between the teeth of the tooth,
Above the end of the yoke portion of the first pole tooth and notch configured engagement section in the cutout shape regulating portion formed in-out it is provided,
The base part of the second magnetic pole teeth is provided with a joint part constituted by a plastic deformation part fitted to the shape restricting part,
A fall prevention groove is provided in the vicinity of the center of the engagement portion of the first magnetic pole teeth, a fall prevention protrusion is provided in the vicinity of the center of the connection portion of the second magnetic pole teeth, and the connection portion is connected to the engagement portion. An armature for a rotating electrical machine, wherein the fall-preventing protrusion is brought into contact with the fall-preventing groove when press-fitted into the shaft from the radial direction . 5. The shape restricting portion of the engaging portion of the first magnetic pole tooth is a tapered groove provided in a direction away from the end face of the first magnetic pole tooth toward the radially outer diameter side. The armature of the rotating electric machine according to 1. 5. The shape restricting portion of the engaging portion of the first magnetic pole tooth is a tapered groove provided in a direction closer to the end face of the first magnetic pole tooth toward the radially outer diameter side. The armature of the rotating electric machine according to 1. A protrusion is provided in the shape restricting portion of the engaging portion of the first magnetic pole tooth , a groove portion is provided in the plastic deformation portion of the joint portion of the second magnetic pole tooth , and the joint portion is radially formed on the engaging portion. 7. The rotating electrical machine according to claim 4, wherein when the press fitting is performed, the protrusion provided in the shape restricting portion is engaged with the groove provided in the plastic deformation portion. Armature.

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