WO2004012324A1 - モータの製造方法 - Google Patents
モータの製造方法 Download PDFInfo
- Publication number
- WO2004012324A1 WO2004012324A1 PCT/JP2003/009699 JP0309699W WO2004012324A1 WO 2004012324 A1 WO2004012324 A1 WO 2004012324A1 JP 0309699 W JP0309699 W JP 0309699W WO 2004012324 A1 WO2004012324 A1 WO 2004012324A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- motor
- pole
- slot
- magazine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/06—Embedding prefabricated windings in the machines
- H02K15/062—Windings in slots; Salient pole windings
- H02K15/065—Windings consisting of complete sections, e.g. coils or waves
- H02K15/066—Windings consisting of complete sections, e.g. coils or waves inserted perpendicularly to the axis of the slots or inter-polar channels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
- H02K15/043—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines winding flat conductive wires or sheets
Definitions
- the present invention relates to a method for manufacturing a motor, and particularly to a method for inserting a coil into a motor core.
- the conventional coil insertion method is the so-called inserter method, as disclosed in, for example, Patent Documents 1 to 3 below.
- the ring-shaped stator core 1 is arranged horizontally, and the coil 8 is also arranged substantially horizontally below the axial direction. .
- a jig (not shown) is raised from below the coil 8 through the inside of the stator core 1, and the jig is used to move the inner end 81 of the coil 8 upward.
- the coil 8 moves so as to stroke the inner peripheral surface of the stator core 1 while gradually changing the state from a horizontal state to a vertical state.
- the dimensions of the coil 8 must have a margin at least in the vertical length L O. As a result, when the insertion is completed, the coil end portion of the upper end or lower end of the coil 8 protrudes from the stator core 1 more than necessary.
- the present invention has been made in view of the above-mentioned conventional problems, and provides a method of manufacturing a motor capable of reducing the amount of coil protrusion from a motor core and reducing the axial length of the motor. That is what we are going to offer.
- the plurality of single-pole coils are held by the coil holding means during or after the coil forming step, and the coil insertion portions of the single-pole coils face the inner peripheral opening of the slot, respectively.
- the plurality of single-pole coils are arranged so as to be substantially parallel to the axial direction of the motor core, and each of the single-pole coils is moved substantially linearly toward the motor core so as to separate from the coil holding means,
- the adjacent single-pole coils are moved so that the moving trajectories of the adjacent coil inlets before entering the slots are parallel or closer to the outer circumference from the inner circumference.
- the two coil insertion portions of each monopole coil start moving at the same time and move so as to be at the same speed, so that the coils of the plurality of monopole coils are moved.
- a coil insertion step of inserting an insertion portion into the slot According to a second aspect of the present invention, there is provided a method for manufacturing a motor having a ring-shaped motor core, wherein a coil is inserted and arranged in a slot provided on an inner peripheral surface of the motor core.
- the plurality of single-pole coils are held by a coil holding means during or after the coil forming step, and the coil insertion portions of the single-pole coils face the inner peripheral openings of the slots, respectively.
- the plurality of single-pole coils are arranged so as to be substantially parallel to the axial direction of the motor core, and each of the single-pole coils is moved substantially linearly toward the motor core so as to separate from the coil holding means.
- the adjacent single-pole coils are moved so that the moving trajectories of the adjacent coil insertion parts before they enter the above-mentioned slots are parallel, or become closer from the inner circumference to the outer circumference. Further, by moving the two coil insertion portions of each unipolar coil so as to be inserted into the slot at the same time, A coil inserting step of inserting the coil insertion portions of the plurality of single-pole coils into the slots.
- a method for manufacturing a motor having a ring-shaped motor core wherein a coil is inserted into a slot provided on an inner peripheral surface of the motor core.
- a coil holding groove having a shape that can be arranged inside the inner peripheral surface of the motor core, and a coil holding groove for arranging the coil insertion portion of the single-pole coil at a position on the outer peripheral surface facing the slot of the motor core.
- a plurality of coil holes, and the coil holding grooves for arranging adjacent coil insertion portions of the adjacent single-pole coils are parallel to each other or closer to each other from the inner circumferential side toward the outer circumferential side.
- the coil insertion portions of the plurality of single-pole coils are inserted into the coil holding grooves to hold the coils in the magazine,
- each of the single-pole coils is removed from the magazine.
- a ring-shaped motor core In a method of manufacturing a motor in which a coil is inserted into a slot provided on a peripheral surface,
- the coil insertion portions of the plurality of single-pole coils are inserted into the coil holding grooves to hold the coils in the magazine,
- each of the single-pole coils is moved from the magazine.
- the plurality of single poles are moved by moving them substantially linearly toward the motor core so as to be separated, and by simultaneously moving the two coil insertion portions of each single pole coil into the slots. And a coil inserting step of inserting the coil insertion portion of the coil into the slot.
- each of the single-pole coils is moved substantially linearly toward the motor core so as to be detached from the coil holding means. Movement trajectories of adjacent coil insertion parts of adjacent single-pole coils are parallel or move from the inner circumference to the outer circumference And the force to move the two coil insertion parts of each unipolar coil so that they start simultaneously and move at the same speed. The point is that the two coil insertion portions of the coil are moved so as to be inserted into the slot at the same time.
- the single-pole coils are arranged such that the coil insertion portions are substantially parallel to the inner peripheral openings of the slots. Then, the single-pole coil is moved substantially linearly toward the motor core. Then, the coil insertion portion of the single pole coil is inserted into the slot.
- the coil in the coil insertion step, the coil can be inserted by linear movement without substantially changing the attitude of the single-pole coil. Since the so-called linear insertion method (radial insertion method) can be implemented, it is not necessary to make the length of the monopole coil in the vertical direction longer than necessary. Therefore, the length of the coil insertion part and coil end part of the single-pole coil can be set to the optimum length when mounted on the motor core. Therefore, the axial length of the component in which the coil is mounted on the motor core, and hence the axial length of the entire motor, can be reduced.
- linear insertion method radial insertion method
- adjacent single-pole coils are moved so that the movement trajectories of the adjacent coil insertion portions become parallel or closer to the outer circumference from the inner circumference.
- the single-pole coil can be easily arranged on the inner peripheral side of the motor core.
- the effect that the coil insertion step can be easily performed can be added.
- the force that causes the two coil insertion portions of each monopole coil to start moving at the same time and move at the same speed, or the two coil insertion portions of each monopole coil are simultaneously inserted into the slot. Move to enter Let it.
- each single-pole coil can always move while keeping the distance between the coil insertion portions at the minimum distance, which eliminates the need to add an extra length to the coil end.
- FIG. 1 is an explanatory diagram illustrating a state in which a coil is wound around a winding frame by a winding arm according to the first embodiment.
- FIG. 2 is an explanatory diagram illustrating a state in which formation of three coils is completed according to the first embodiment.
- FIG. 3 is an explanatory diagram showing a state in which the shapes of three coils are adjusted in the first embodiment.
- FIG. 4 is an explanatory diagram showing a state immediately before the transfer machine is inserted into the coil on the winding frame in the first embodiment.
- FIG. 5 is an explanatory view showing a state immediately after the transfer machine is inserted into the coil on the winding frame in the first embodiment.
- FIG. 6 is an explanatory view showing a state in which the transfer device is inserted into the coil on the winding frame and the coil is held in the first embodiment.
- FIG. 7 is an explanatory view showing a state in which the coil on the bobbin is pulled out by the transfer machine in the first embodiment.
- FIG. 8 is an explanatory diagram showing a state in which the coils are being transferred from the transfer machine to the magazine in the first embodiment.
- FIG. 9 is an explanatory view showing a state in which the magazine is arranged inside the stator core and the insertion blade and the temporarily formed blade are inserted into the groove according to the first embodiment.
- FIG. 10 is an explanatory view showing a state in which the insertion blade and the temporarily formed blade are moved in the first embodiment.
- Fig. 11 is an explanatory view showing a state in which the movement of the inserted blade and the temporary forming blade in the first embodiment is completed.
- FIG. 12 is an explanatory view showing a state in which the upper and lower formers are advanced toward the stator core in the first embodiment.
- FIG. 13 is an explanatory diagram showing a state in which the locus of the coil when inserting the coil into the stator core is viewed obliquely in the first embodiment.
- FIG. 14 is an explanatory diagram showing a state of a coil trajectory when a coil is inserted into a stator core as viewed from the side in the first embodiment.
- Fig. 15 is an explanatory diagram showing the dimensions of the coil with the stator core inserted in the first embodiment.
- Fig. 16 is an explanatory diagram showing the arrangement of single-phase coils of each phase inserted into the stator core in the first embodiment.
- FIG. 17 is an explanatory diagram showing the overlapping state of the coil end portions of the single-pole coils of each phase inserted into the stator core in the first embodiment.
- FIG. 18 is an explanatory diagram showing the configuration of the coil insertion device in the second embodiment.
- FIG. 19 is an explanatory view showing the operation of the insertion blade and the like of the coil insertion device in the second embodiment.
- FIG. 20 is an explanatory view showing the shape and movement of an insertion blade in the third embodiment.
- FIG. 21 is an explanatory view of the shape and movement of the insertion blade in Example 4 as viewed from the side.
- FIG. 22 is an explanatory diagram of the shape and movement of the insertion blade in Example 4 as viewed from above.
- Fig. 23 is an explanatory diagram of the structure of the magazine in Example 5 as viewed from the front.
- Fig. 24 is an explanatory view of the structure of the magazine in Example 5 as viewed from the side.
- Figure 25 is an explanatory diagram of the structure of the magazine in Example 5 as viewed from above.
- Figure 26 is an explanatory view of the structure of the magazine in Example 6 as viewed from the front.
- Figure 27 is an explanatory view of the structure of the magazine in Example 6 as seen from the side.
- Fig. 28 is an explanatory diagram of the structure of the magazine in Example 6 as viewed from above.
- FIG. 29 is an explanatory diagram showing an example of the position where the insertion pressure is applied to the single-pole coil in the seventh embodiment.
- FIG. 30 is an explanatory diagram showing an example of a position where an insertion pressure is applied to a single-pole coil in the seventh embodiment.
- FIG. 31 is an explanatory view showing an example of a position where an inlet pressure is applied to a single-pole coil in the seventh embodiment.
- FIG. 32 is an explanatory view showing an example of a position where an inlet pressure is applied to a single-pole coil in the seventh embodiment.
- FIG. 33 is an explanatory view showing an example of a position where an input pressure is applied to a single-pole coil in the seventh embodiment.
- FIG. 34 is an explanatory diagram showing an example of a position where an inlet pressure is applied to a single-pole coil in the seventh embodiment.
- FIG. 35 is an explanatory view showing the structure of the split insertion hook in the eighth embodiment.
- FIG. 36 is an explanatory view showing another example of the structure of the divided insertion hook in the eighth embodiment.
- FIG. 37 is an explanatory diagram showing the configuration of the coil forming apparatus according to the ninth embodiment.
- FIG. 38 is an explanatory view showing a state in which a coil is formed by the coil forming apparatus in the ninth embodiment.
- FIG. 39 is a development explanatory view showing the structure of the winding jig in the ninth embodiment.
- FIG. 40 is an explanatory view showing a state in which the winding frame of the winding jig is completely retracted in the ninth embodiment.
- FIG. 41 is an explanatory view showing a state in which the first winding frame of the winding jig in the ninth embodiment is advanced.
- FIG. 42 is an explanatory view showing a state in which an electric wire is wound by rotating the winding jig about the axis of the first winding frame in the ninth embodiment.
- FIG. 43 is an explanatory view showing a state in which the winding of the electric wire on the first bobbin in the ninth embodiment is completed.
- FIG. 44 is an explanatory view showing a state in which the first bobbin is retracted in the ninth embodiment.
- FIG. 45 is an explanatory view showing a state in which the second bobbin of the winding jig is advanced in the ninth embodiment.
- FIG. 46 is an explanatory view showing a state in which winding of the electric wire is completed by rotating the winding jig about the axis of the second winding frame in the ninth embodiment.
- FIG. 47 is an explanatory view showing a state in which the second bobbin is retracted in the ninth embodiment.
- FIG. 48 is an explanatory view showing a state in which the third bobbin of the winding jig is advanced in the ninth embodiment.
- FIG. 49 is an explanatory view showing a state in which the winding jig is rotated around the axis of the third winding frame in the ninth embodiment to complete the winding of the electric wire.
- FIG. 50 is an explanatory view showing a state in which the third bobbin is retracted in the ninth embodiment.
- FIG. 51 is an explanatory view showing a fixing structure at a retracted position of the bobbin according to the ninth embodiment.
- FIG. 52 is an explanatory view showing a state in which the engagement of the positioning pin of the winding frame with the guide plate in the ninth embodiment is released.
- FIG. 53 is an explanatory view showing a fixing structure at a forward position of the winding frame in the ninth embodiment.
- FIG. 54 is an explanatory view showing a state in which the winding jig according to the ninth embodiment is arranged inside the stator core.
- FIG. 55 is an explanatory view showing a state in which the insertion blade and the temporary forming blade inserted into the winding jig in the ninth embodiment are advanced.
- FIG. 56 is a perspective view of the edge in the tenth embodiment.
- FIG. 57 is an explanatory view showing a state in which the ⁇ edge in Example 10 is mounted on the slot of the stator core.
- FIG. 58 is an explanatory view showing the structure of the insertion device in the embodiment 11;
- FIG. 59 is a cross-sectional view taken along line AA of FIG. 58 in the eleventh embodiment.
- FIG. 60 is a cross-sectional view taken along line BB of FIG. 58 in Example 11;
- FIG. 61 is an explanatory view showing a state in which the processing of the edge pusher of the insertion device in Example 11 is started.
- FIG. 62 is an explanatory view showing a state in which the edge pusher of the insertion device is in contact with the blade unit in the eleventh embodiment.
- FIG. 63 is an explanatory view showing a state in which the ⁇ edge is pushed into the slot of the stator core from the insertion device in the eleventh embodiment.
- FIG. 64 (a) is an explanatory view showing a state before the pusher plate is advanced in a state where the coil insertion means is viewed from the axial direction of the stator core in the twelfth embodiment.
- FIG. 64 (b) is an explanatory view showing a state in which the coin insertion means is viewed from the axial direction of the stator core and a state in which the pusher plate has been advanced in the twelfth embodiment.
- FIG. 65 (a) is an explanatory view showing a state before the pusher plate is advanced in a state where the coil insertion means is viewed from a cross section taken along line C-C of FIG. 64 in Example 12;
- FIG. 65 (b) is an explanatory view showing a state in which the pusher plate has been advanced in a state where the coil insertion means is viewed from a cross section taken along line C-C of FIG. 64 in the twelfth embodiment.
- Fig. 66 is an explanatory diagram showing a state in which the trajectory of the coil when the coil is inserted into the stator core is viewed obliquely in the conventional example.
- Fig. 67 is an explanatory diagram showing a state in which the trajectory of the coil when inserting the coil into the stator core is viewed from the side in the conventional example.
- Figure 68 shows the dimensions of the coil with the stator core inserted in the conventional example.
- the respective monopole coils are substantially linearly directed toward the motor core such that the locus of movement of the winding center point of each monopolar coil is substantially linear. It is preferable to move it.
- the two coil insertion portions of each single-pole coil have It is preferable to dispose the monopolar coils so as to be at the same distance from the inner peripheral opening of the slot.
- the two coil insertion portions of each of the single-pole coils start to enter the slot at the same time, and are moved so as to complete the entry at the same time.
- the movement of the single-pole coil can be performed more stably.
- the coil insertion step it is preferable that all the coil insertion portions of the plurality of single-pole coils start moving at the same time and move at the same speed.
- the adjacent coil inlets of the adjacent single-pole coils move in parallel or in a moving trajectory approaching from the inner circumference to the outer circumference, but also at the start of movement, during movement, and during movement. Synchronize the completion time.
- the length of the crossover which is the electric wire (wire) connecting the adjacent single-pole coils, can be set to a minimum, and the motor can be made more compact.
- the motor has a coil group of a plurality of phases, and the coil group of each phase is composed of a plurality of the single-pole coils
- all the coils belonging to one phase are included in the coil insertion step.
- the movement of the single-pole coil in the coil insertion step is performed in a state where an angle between the coil insertion portion and the axial direction of the motor core is maintained within 5 °. If the angle between the coil insertion portion and the axial direction of the motor core exceeds 5 °, the effect of reducing the length of the coil end may be reduced.
- the coil insertion step it is preferable that only the single-pole coil is inserted into the slot of the motor core. That is, it is preferable to move only the coil, instead of moving the coil to the motor core with the coil wound on a so-called hobbin or the like. As a result, the distance between the motor core and each coil (single-pole coil) can be reduced, which is advantageous for an efficient magnetic circuit configuration.
- insertion pressure is applied to at least the two coil insertion portions of the single-pole coil, and the single-pole coil is moved substantially linearly toward the motor core.
- the inlet pressure in a well-balanced manner to the two coil inlet portions, it is possible to relatively easily move the single-pole coil linearly with almost no change in attitude.
- the coil insertion step at least an input pressure is applied to each of the two coil end portions of the single-pole coil, and the single-pole coil is moved substantially linearly toward the motor core. It can also be done. In this case, apply the above input pressure to the two coil ends in a well-balanced manner. Thus, the above-described linear movement of the single-pole coil can be realized relatively easily.
- insertion pressure is applied to each of a plurality of positions substantially symmetric with respect to the winding center point of each of the single-pole coils, and the single-pole coil is directed toward the motor core. It can be moved substantially linearly. In this case, by applying the insertion pressure to the plurality of positions in a well-balanced manner, the linear movement of the single-pole coil can be realized.
- the motor has a ring-shaped motor core having a plurality of the slots provided on an inner peripheral surface thereof, has a plurality of phase coil groups, and each phase coil group constitutes one pole. It is composed of a plurality of single-pole coils. Each single-pole coil is inserted into the motor core by straddling the two slots, and the single-pole coils belonging to coil groups of different phases are It is preferable that the motor is a distributed winding type motor in which a part of the coil end portions are overlapped with each other when the motor is mounted on the motor core. In this case, since the coil end part is partly overlapped as described above, it is very difficult to convert the coil end part, which is the part of the coil that protrudes, using a straight-line insertion method. It is effective for
- the motor core is a stator core. That is, there are a stator core and a rotor core as the motor core. Particularly, in the case of the stator core, there is a strong demand for making the axial length compact, and the effect of the present invention is very effective.
- the coil insertion step has a disc shape that can be arranged inside the inner peripheral surface of the motor core, and the coil insertion portion of the single-pole coil is positioned on the outer peripheral surface at a position facing the slot of the motor core.
- a plurality of coil holding grooves for arranging the coil, and the coil holding grooves for arranging the adjacent coil insertion portions of the adjacent single-pole coils are parallel to each other or the outer circumference from the inner circumference side.
- the coil insertion means is brought into contact with all the unipolar coils on the magazine, and the contact portions are advanced in a direction from the center of the magazine toward the outer periphery, so that all the unipolar coils are brought into contact with the monopole coil. It is preferable to move the motor core from the coil holding groove to the above-mentioned slot.
- the coil is inserted into the coil holding groove of the magazine.
- the coil holding groove is provided on the outer peripheral surface of the magazine. Therefore, when inserting the coil into the coil holding groove, it is possible to use a device with a free configuration and to adopt a free working method without being restricted by space. Therefore, mounting of the coil in the coil holding groove of the magazine can be performed relatively easily.
- the coil insertion means is brought into contact with the coil and moved from inside to outside.
- the coil held in the coil holding groove of the magazine is pushed linearly by the coil insertion means and pushed into the facing motor core slot without changing its attitude. That is, the linear movement of the coil can be easily performed by moving the coil insertion means.
- the coil holding grooves provided in the magazine are, as described above, such that the coil holding grooves in which the adjacent coil insertion portions of the adjacent single-pole coils are arranged are parallel to each other or from the inner circumferential side to the outer circumferential side. It is set so that it gets closer as you go. Therefore, it is possible to easily and surely move the adjacent single-pole coils such that the moving trajectories of the coil insertion portions adjacent to each other are parallel or closer to the outer peripheral side from the inner peripheral side.
- the coil insertion means comprises an insertion blade that can be inserted into the coil holding groove of the magazine, and inserts the insertion blade into the coil holding groove to advance in a direction from the center toward the tato circumference. Accordingly, it is preferable to move the coil insertion portion from the coil holding groove to the slot of the motor core.
- the gap is left between the bottom of the coil holding groove and the coil.
- This allows the insertion blade to be arranged in the coil holding groove. Then, by inserting the insertion blade into the coil holding groove, the insertion blade and the coil insertion portion located in the coil holding groove can be brought into full contact with each other, and the stable movement of the coil can be achieved. Can be realized.
- the insertion of the insertion blade into the coil holding groove may be performed at the same time as the placement of the magazine in the motor core or before or after the placement.
- the insertion blade is configured to be inserted from either the front surface or the rear surface of the magazine. This simplifies the mechanism for moving the insertion blade.
- the coil insertion means includes a pair of split insertion blades that can be inserted into the coil holding groove from the front side and the back side of the magazine, respectively.
- the coil insertion groove is inserted into the coil holding groove from the front side and the back side, respectively, and is brought into contact with the coil insertion part. It is also preferable to move the motor core to the slot of the motor core.
- the pair of divided insertion blades inserted into the coil holding groove from the front and back of the magazine can be moved from the center toward the outer periphery.
- a method of realizing coil straight-forward movement by simply inserting a pair of split insertion plates with tapered portions from above and below You can also.
- the coil insertion means comprises a pair of split insertion hooks divided on the front side and the back side of the magazine, and the pair of split insertion hooks protrude on the front side and the back side of the magazine.
- the coil insertion portion can be moved from the coil holding groove to the slot of the motor core by being brought into contact with the coil end portions and moving forward from the center of the magazine toward the outer periphery.
- the temporary forming means disposed between the adjacent coil holding grooves is moved in a direction from the center of the magazine toward the outer periphery. It is preferable to perform a temporary forming step in which the coil end portion is pressed and deformed by being advanced. In this case, each time the coil is mounted on the motor core, a temporary forming step in which the coil end portion, which is a protruding portion of the coil, is pressed outward by the temporary forming means and deformed can be easily performed. As a result, the coil end portion approaches the surface of the motor core, and the axial length of the coil end portion can be further reduced. In addition, since the temporary molding can be performed using the magazine and the temporary molding means, the apparatus and process can be simplified.
- a temporary forming groove is provided in the magazine alongside the coil holding groove, and a temporary forming blade that can be inserted into the temporary forming groove is used as the temporary forming means. It is preferable that the temporary forming step is performed by inserting into the temporary forming groove and advancing in a direction from the center toward the outer periphery.
- the device configuration can be simplified by combining the provisional forming groove and the provisional forming blade.
- the temporary forming means comprises a pair of divided temporary forming blades divided on the front side and the back side of the magazine, and the pair of divided temporary forming blades are placed on the front side and the back side of the magazine.
- the temporary forming step can also be performed by advancing the magazine in the direction from the center to the outer periphery of the magazine.
- the coil insertion means comprises a pair of split insertion blades divided on the front side and the back side of the magazine, and the split insertion blade is configured to interlock with the divided molded blade. Is preferred.
- the coil inserting means and the temporary forming means are both divided on the front and back surfaces of the magazine, it is preferable to link the components existing on the same surface side in conjunction with each other. This makes it possible to integrate the transfer mechanism between the coin insertion means and the temporary forming means, and to simplify the device configuration.
- the coil end is formed by pressing a former having a mold surface for adjusting the coil end into a desired shape against the motor core. It is preferable to perform the main molding step.
- the entire temporarily formed coil can be formed at a time into a desired shape only by pressing the former onto the motor core. Therefore, the main molding process can be performed easily.
- the coil end protruding from the motor core can be formed so as to approach the motor core, so that the axial dimension can be further reduced.
- the former has a notch for preventing interference with the coil insertion means and the temporary forming means, and maintains a state where the coil insertion means and the temporary forming means are advanced.
- the former is pressed against the motor core as it is.
- the coil The coil can be fixed at the time of the main forming process of the tool, and the main forming can be performed stably.
- the main molding process can be continuously performed after the completion of the temporary molding process, so that the manufacturing process can be further streamlined.
- the motor is a three-phase DC brushless motor, and in the coil input step, it is preferable that a single-pole coil for one phase is simultaneously inserted into the slot of the motor core.
- one phase coil can be handled at a time using the magazine.
- all three phases can be handled, and the work of inserting the coil into the motor core can be completed by three operations.
- a winding jig used in the coil forming step can be used as the magazine.
- the coil forming step includes a base holder and a plurality of winding frames radially arranged on an outer peripheral surface of the base holder, and the winding frames are arranged so as to be able to advance and retreat with respect to the base holder.
- the coil holding grooves for arranging the adjacent coil insertion portions of the adjacent single-pole coils are parallel to each other or closer to each other from the inner circumference toward the outer circumference.
- An electric wire is supplied to the projecting winding frame from one direction, and the entire winding jig is rotated around the axis of the winding frame to wind the electric wire around the winding frame to form a monopolar coil.
- a winding frame retreating step of retreating the winding frame on which the single-pole coil is formed wherein the winding frame projecting step, the winding step, and the winding frame retreating step are sequentially repeated on an adjacent winding frame, and In the winding process, the above winding jig is rotated. It is done by reversing the direction sequentially,
- the winding jig is used as the magazine, the winding jig holding the coil is disposed inside the motor core, and the single-pole coils are connected to the winding frame. Can be moved directly to the slot of the motor core.
- the coil is formed using a winding jig provided with a plurality of winding frames radially. Then, in the coil insertion step, the winding jig is arranged inside the motor core. At this time, since the winding frame of the winding jig is radially arranged as described above, when the winding jig is arranged in the ring-shaped motor core, each single-pole coil is inserted. It is easy to face the slot to be used. Therefore, the single-pole coil can be moved directly from the winding frame to the slot of the motor core without transferring the single-pole coil from the winding jig to another transfer device.
- a unique winding jig having the base holder and the winding frame is used. Then, as described above, the winding frame projecting process, the winding process, and the winding frame retreating process are sequentially performed for each of the winding frames.
- the winding step is performed by rotating the entire winding jig around the axis of the projecting winding frame. Therefore, as described above, the wires can be supplied from one direction, and there is no need to turn the wires themselves as in the past. Therefore, a single-pole coil can be formed on the bobbin without twisting the wire.
- the winding step is performed after the winding step and the winding step is performed after the winding step. That is, when changing the winding frame to be subjected to the winding process, the winding frame can be changed by moving the winding frame forward and backward in the winding frame projecting step and the winding frame retreating step. There is no need to provide a special space for electric wire supply during this period.
- the coiling jig is provided with the coil holding grooves for placing adjacent coil insertion portions of adjacent single-pole coils between adjacent winding frames, as described above. It is provided so that it gets closer to the outer circumference. As a result, it is possible to easily and surely move the adjacent single-pole coils such that the moving trajectories of the coil insertion portions adjacent to each other become parallel or closer to the outer peripheral side from the inner peripheral side.
- the base holder has a disk shape, and the plurality of winding frames are arranged so as to be able to advance and retreat along an axis extending radially from a center point of the base holder.
- the winding jig is centered on the center point of the base holder. It is only necessary to rotate the whole slightly. This makes it easy to change the center of rotation when the winding frame to be wound is changed.
- each of the winding frames has a fan shape whose width increases along the axis.
- the shape of the monopolar coil formed on each winding frame can be a shape whose width increases along the axis. Therefore, a coil shape suitable for mounting from the inner peripheral surface of the motor core can be easily obtained.
- each of the above-mentioned winding frames is provided with a detachable molding block for adjusting the shape of the wound single-pole coil.
- the shape of the monopole coil can be easily changed by using molded blocks of different shapes. This molded block can exhibit the function as the positioning tool described above.
- an outer shape line formed by a leading end of the winding frame may have a circular shape centered on a center point of the base holder.
- the winding jig when the entire winding frame is retracted, an outer shape line formed by a leading end of the winding frame may have a circular shape centered on a center point of the base holder. preferable.
- the winding jig when the winding jig is arranged on the inner surface side of the ring-shaped motor core, the winding jig and the lower surface of the motor core are arranged. The gap with the coil can be reduced, and the coil can move more smoothly.
- Separate plates extending from the outer peripheral surface of the base holder are provided on both sides of each of the winding frames, and a predetermined distance is maintained between the separating plates and the winding frames. Is preferred. In this case, when a single pole coil is formed on the winding frame and then the winding frame is retracted, the coil can be arranged in a space at a predetermined interval between the separate plate and the winding frame. It is possible to hold the coil on the winding jig while maintaining the shape of the coil well.
- the slot of the motor core has a slot open portion in which the space is narrowed down at the inner peripheral end, and a general portion having a wider space than the slot open at the outer peripheral side.
- an edge insertion step of inserting an edge from an axial direction of the motor core into the slot so as to close an inner peripheral opening of the slot.
- a wedge used in a conventional motor manufacturing method using an inserter method is formed by folding a sheet of an electrically insulating aramide fiber into a U-shape. ⁇ The mounting work of the edge is performed simultaneously with the insertion while moving the coil in the axial direction of the motor core.
- the edge is not inserted into the slot at the same time as the coil is inserted, but the edge insertion step is performed in a separate step after the coil is inserted.
- the edge a wide portion disposed in the general portion of the slot, and a width dimension smaller than the wide portion, provided so as to protrude from the wide portion and disposed in the slot open portion. It is preferable to use an edge having a convex portion.
- a wedge formed by bending a conventional sheet of aramide fiber has low rigidity, and it is difficult to insert it into the slot while pushing the coil.
- the ⁇ edge has a shape including the wide portion and the convex portion.
- the rigidity is much better in shape than the conventional ⁇ edge formed by bending a sheet. Therefore, after the coil is inserted into the slot of the stator core, it has sufficient strength to withstand ⁇ edge insertion alone.
- the width of the slot open part can be made wider than before by utilizing the improvement in the rigidity of the edge (1). Therefore, the insertability of the coil in the above-described coil insertion step can be improved.
- the wide portion and the convex portion of the wedge are arranged in the general portion and the slot open portion of the slot of the stator core, respectively.
- the ⁇ edge is formed by integrally molding the wide portion and the convex portion with a synthetic resin.
- the ⁇ edge can be easily manufactured and the manufacturing cost can be reduced.
- the synthetic resin various synthetic resins, plastics, and the like can be used as long as they have the rigidity, electrical insulation, and a certain degree of heat resistance required for the edge.
- LCP Liquid Crystal Liquid crystal polymer called Polymer
- an inward concave portion is formed on a surface of the wide edge portion of the ⁇ edge opposite to a surface on which the convex portion is provided. In this case, the area of the space in the slot can be increased by the amount of the above-mentioned part, which can contribute to an improvement in the filling rate of the coil.
- At least one of the wide portion and the convex portion at at least one end in the longitudinal direction of the edge has a tapered shape in which a width or a thickness decreases as approaching the end.
- At least one of the wide portion and the convex portion at at least one end in the longitudinal direction of the edge may have an R shape in which a corner of the end is curved.
- the presence of the R-shape can improve the insertability when inserting the ⁇ edge into the slot.
- the wide portion has a width dimension which is arranged while maintaining a predetermined clearance between the wide portion and the inner wall surface of the general portion in the slot of the stator core. In this case, when the ⁇ edge is inserted into the slot of the stator core, there is no frictional resistance from the inner wall surface of the general portion in the slot to the ⁇ edge. Can be improved.
- the clearance be smaller than a dimension of an inner wall surface forming the slot open portion of the stator core protruding from an inner wall surface forming the general portion. This ensures that the wide part does not come off through the slot open part when the ⁇ edge is placed in the slot, and the ⁇ ⁇ friction force between the edge and the protruding part from the inner wall surface. The edge can be prevented from coming off in the axial direction.
- the clearance is smaller than a diameter of an electric wire constituting a coil to be inserted and arranged in the slot of the stator core.
- the wire of the coil in the slot can be reliably prevented from entering the slot open side from the ⁇ edge, and the creeping current suppression effect can be enhanced.
- the coil insertion portion is pressed by the insertion blade using an insertion blade that can enter the slot, and the coil insertion portion is guided into the slot.
- the insertion blade itself also enters the slot,
- the insertion blade and the (2) edge are moved in conjunction with each other in the axial direction of the motor core, and the wedge is inserted into the slot so that both are interchanged.
- coil holding means having a coil holding groove provided at a position facing the slot of the motor core is used, and the coil insertion portion of a single-pole coil is inserted into the coil holding groove to form the coil.
- a pole coil is held by the coil holding means, and the monopole coil is inserted from the coil holding means into the slot of the motor core with the ring-shaped motor core disposed on the outer peripheral side of the coil holding means.
- the coil insertion device comprises: a coil holder for holding the coil holding means and the motor core;
- a coil insertion device comprising: an insertion blade capable of being inserted into the coil holding groove of the coil holding means; and blade driving means for moving the insertion blade forward and backward along the coil holding groove.
- the coil holding means is provided with one or more temporary forming grooves between a pair of the coil holding grooves for holding one monopolar coil.
- the coil insertion device has a first arm and a second arm having a swing fulcrum at a lower end, and the insertion blade is connected to an upper end of the first arm, and an upper end of the second arm.
- a temporary forming blade is connected to the first arm and the first arm and the second arm are respectively provided with a first slot and a second slot having an inclination at least in part.
- an elevating member which is moved up and down by an actuator is arranged, and the elevating member has the first elongated hole and the second elongated hole.
- a first pin and a second pin slidably engaged with the section are provided side by side. The first and second pins and the first length are moved up and down by the actuator.
- the method of manufacturing the motor of this example has a ring-shaped motor core (stator core) 1 (FIGS. 9 to 12) having a plurality of slots 10 on the inner peripheral surface, and has three phases (U phase, V phase, (W-phase) coil group (Fig. 16 and Fig. 17).
- the coil group of each phase is composed of a plurality of single-pole coils 8 constituting one pole, and each single-pole coil 8 is inserted into the stator core 1 through two slots 10 respectively.
- This is a method of manufacturing a motor in which the single-pole coils 8 arranged and belonging to the coil groups of different phases are overlapped with each other in a part of the coil end portions 800 2 in a state of being mounted on the stator core 1. .
- the manufacturing method of the present example includes a coil forming step and a coil inserting step.
- the coil forming step as shown in FIGS. 1 to 3, the coil insertion portion 8001, which is inserted into the slot 10, is provided at two places, and the step is carried out so as to connect the coil insertion portions 8001.
- This is a step of forming a coil including a single-pole coil 8 having two coil end portions 802 arranged outside the core 1 at two locations.
- a plurality of single-pole coils 8 are set so that the coil insertion portions 800 are respectively substantially parallel to the inner peripheral openings of the slots 10. And simultaneously move the plurality of single-pole coils 8 almost linearly toward the stator core 1 while maintaining the angle between the coil insertion part and the axial direction of the stator core 1 within 5 °.
- the coil insertion portions 8001 of the plurality of single-pole coils 8 are simultaneously inserted into the slots 10.
- the movement locus of the adjacent single-pole coil 8 before it is inserted into the slot 10 of the adjacent coil input section 81 for example, a 2 and bl, b 2 and cl in FIG. 8)
- the two coil insertion portions 8001 of each monopole coil 8 start moving at the same time and move so as to have the same speed.
- the stator core 1 has a disk shape that can be placed inside the inner peripheral surface, and the motor core 1 A magazine 2 having a plurality of coil holding grooves 20 for arranging the coil insertion portion 800 of the single-pole coil 8 at a position facing the slot 10 is used.
- the above-mentioned coil holding groove 20 is provided with the above-mentioned coil holding groove (for example, 20 A 2 and 20 B 1, 20 0 in FIG. 8) in which the adjacent coil insertion portions 800 of adjacent single-pole coils 8 are arranged. B 2 and 20 C 1) are provided parallel to each other.
- the coil 8 (coil insertion portion 800 1) is inserted into the coil holding groove 20 so that the coil holding groove 20 of the magazine 2 faces the slot 10 of the stator core 1.
- the magazine 2 is arranged inside the stator core 1.
- the insertion blade 3 serving as a coil insertion means is brought into contact with the coil 8 and is advanced from the center of the magazine 2 toward the outer periphery to thereby move the coil 8 into the coil. Move from holding groove 20 to slot 10 of stator core 1
- the motor manufactured in the present invention is a three-phase DC brushless motor.
- the stator core 1 in this example is made by laminating ring-shaped electromagnetic steel sheets. As shown in Figs. 9 to 12 and Fig. 16, a total of 72 slots are formed on the inner peripheral surface. It has ten.
- a total of 36 single-pole coils 8 for the stator core 1 are divided into three groups, one for each phase.
- each slot 10 is numbered sequentially from the first to the 72th, first, for the first group, one single-pole coil is used to make a loop through the first slot and the sixth slot. Insert a unipolar coil next to it so that a loop is made through the seventh slot and the first slot. Next to it Also, one unipolar coil is arranged for every six slots.
- 12 single-pole coils 8 which are a group of coils belonging to the U-phase, are first inserted and placed adjacent to each other.
- the single-pole coils 8 belonging to the second and third groups are displaced in the circumferential direction by 2 slots and 4 slots, respectively, from the arrangement of the first group.
- the stator core 1 has a coil end portion 202 of the unipolar coil 8 belonging to the U phase and a part of the coil end portion 202 of the monopolar coil 8 belonging to the V phase. 1 and a part of the coil end portion 802 of the single-pole coil 8 belonging to the W phase to the coil end portion 802 of the single-pole coil 8 belonging to the V phase. All the single-pole coils 8 are mounted on the stator core 1 while overlapping from the inner circumference.
- the coiled portion 802 of each phase is compactly deformed outward from the slot 10. It is stored in.
- the magazine 2 is used to handle one group (one phase) at a time, that is, 12 single-pole coils 8, and a total of 36 single-pole coils 8 To stator core 1.
- the magazine 2 has a pair of left and right coil holding grooves 20, a pair of left and right spare grooves 22 located between them, and a pair of left and right spare grooves 22 located between them. And a temporary molding groove 24. Assuming that these six grooves are one set, 12 sets of these sets are provided adjacent to the entire outer peripheral surface of the magazine 2. All the adjacent grooves are provided so as to face the slots 10 in the stator core 1 (partially omitted from Figs. 8 to 12).
- the above-mentioned spare grooves 22 are all provided along the radial direction, and all the grooves face radially different directions.
- the coil holding groove 20 And a pair of coil holding grooves 20 arranged adjacent to each other for inserting the single pole coil 8 are provided so as to be parallel to each other.
- the pair of temporary forming grooves 24 is also provided so as to be parallel to each other.
- a winder process for forming coils is performed. In this winding process, three unipolar coils 8 are formed.
- each winding frame 5 has four claw portions 51 for upper, lower, left and right sides, and cutout portions 52 are provided on the left and right side surfaces thereof so that a transfer machine 6 described later can be easily inserted. It is provided.
- the claws 51 are configured to open and close to the left and right. When the wire is wound, they open to the left and right to increase the outer diameter.
- Each winding frame 5 can be moved forward and backward as a whole, and each winding frame 5 can be turned left and right.
- the winding arm 59 is configured to supply the wire 88 while rotating around the winding frame 5 in the advanced state.
- the rotation direction is configured to be changeable.
- the winding frame 5 on the left end is advanced further than the others (not shown), and the wire 88 is turned while the winding arm 59 is rotated clockwise around the winding frame 5 on the left end. Supply. Thereby, the first single-pole coil 8 is formed.
- the left-hand bobbin 5 is retracted and the central bobbin 5 is advanced (not shown). Then, the wire 88 is supplied while rotating the winding arm 59 around the center winding frame 5 in the counterclockwise direction. Thereby, the second monopole coil 8 is formed. Furthermore, as shown in Fig. 1, the center bobbin 5 is retracted and the rightmost bobbin 5 is advanced. Then, the wire 88 is supplied while rotating the rewinding arm 59 in the clockwise direction (the direction of the arrow A) around the winding frame 5 at the right end. This forms a third monopolar coil 8.
- the rightmost winding frame 5 is retracted, and the three winding frames 5 are aligned in one row.
- the left and right winding frames 5 are slightly turned outward, and tension is applied to the three single-pole coils 8 to adjust the shape.
- the three single-pole coils 8 formed on the three winding frames 5 are transferred from the winding frame 5 to the magazine 2 using the transfer machine 6. Will be posted.
- the transfer device 6 has two base plates 61 and clamp plates 62 respectively disposed outside the base plates 61.
- the base plate 61 and the clamp plate 62 are provided so as to be capable of turning or opening and closing in the horizontal direction, respectively.
- the mobile machine 6 positions the base plate 61 in parallel with the gap between the winding frame 5 and the single-pole coil 8 in accordance with the gap.
- the front end of the clamp plate 62 opens left and right so that the space between the clamp plate 62 and the base plate 61 opens.
- the base plate 61 of the transfer machine 6 is inserted into the gap between the bobbin 5 and the single-pole coil 8. Then, as shown in Fig. 6, the clamp plate 62 is closed, and the single-pole coil 8 is sandwiched between the clamp plate 62 and the base plate 61. Then, as shown in Fig. 7, by removing the transfer machine 6, the removal of the monopole coil 8 from the bobbin 5 is completed. Next, as shown in Fig. 8, the transfer machine 6 is made to face the outer peripheral surface of the magazine 2, and the outer surface 610 of the base plate 61 is in contact with the inner surface of the coil holding groove 20. They are arranged so as to be substantially parallel.
- the clamp plate 62 is slightly opened to allow the single-pole coil 8 to move, and the single-pole coil 8 is pushed by a pusher (not shown), so that the single-pole coil 8 is inserted into the coin holding groove 20 of the magazine 2. Transfer 8 At this time, the single-pole coil 8 is not pushed into the bottom of the coil holding groove 20, but is inserted between the single-pole coil 8 and the bottom 29 of the coil holding groove 20. Is provided.
- the three unipolar coils 8 formed on the three winding frames 5 can be transferred to the magazine 2 at one time. If each single-pole coil 8 can be separated, it is of course possible to transfer the single-pole coil 8 one by one using one transfer machine 6.
- the work from coil formation to transfer to magazine 2 should be streamlined by increasing the number of winding frames 5, winding arms 59, and transfer machines 6 and proceeding in parallel. Is also possible.
- the magazine 2 is arranged inside the stator core 1 such that the coil holding groove 20 of the magazine 2 faces the slot 10 of the stator core 1.
- all the single-pole coils 8 on the magazine 2 are arranged such that their coil insertion portions 8101 are substantially parallel to the corresponding slots 10 respectively.
- the angle between the coil insertion part 800 and the axial direction of the slot core 1 is It is maintained within 5 ° at the time.
- the insertion blade 3 is inserted into the gap in the coil holding groove 20 of the magazine 2.
- a temporary forming blade 34 is inserted into the temporary forming groove 24 of the magazine 2.
- the insertion blade 3 is advanced in the direction from the center to the outer periphery in the coil holding groove 20, and at the same time, the temporary forming blade 34 is moved into the temporary forming groove 24. Move forward from the center to the outer periphery. As a result, the single-pole coil 8 is pushed by the insertion blade 3 and moves from the coil holding groove 20 to the slot 10 of the stator core 1.
- the upper and lower coil end portions 802 of the single-pole coil 8 protruding from the stator core 1 are subjected to temporary forming, which is pressed by the temporary forming blade 34 and deforms outward.
- the angle formed between each coil insertion portion 801 and the slot core 1 is maintained within 5 ° even during movement. Therefore, all the single-pole coils 8 move simultaneously and substantially linearly toward the stator core 1, and the coil insertion portions 801 of all the single-pole coils 8 are simultaneously inserted into the slots 10.
- the coil holding groove 20 of the magazine 2 is formed by the above-mentioned coil holding groove (for example, 20A2 and 20B1 in FIG. 8) in which the adjacent coil insertion portions 801 of the adjacent single-pole coil 8 are arranged. , 20B 2 and 20C 1) are provided parallel to each other. Therefore, the coil insertion part 801 of each single-pole coil 8 is set so that the movement trajectories (for example, a2 and bl, b2 and c1 in Fig. 8) before entering the slot 10 are parallel. Moving.
- the insertion blade 3 pressing the coil insertion portion stops from the start of movement. Since they operate completely synchronously until they stop, the two coil insertion sections 8 0 1 of each single-pole coil 8 start moving at the same time and move at the same speed.
- the second temporary forming step is performed using a pair of upper and lower formers 66 used also in the main forming process.
- the former 66 has a ring shape as shown in FIG. 12, and has a mold surface 66 on the side facing the stator core 1 for adjusting the coil to a desired shape.
- each of the upper and lower formers 66 has a tapered mold surface 660 such that an inner peripheral portion thereof projects toward the stator core 1.
- the coil 8 is formed outwardly along the tapered shape of the mold surface 600 by advancing the former 66 toward the stator core 1.
- each former 66 is provided with a cut-out portion 665 for preventing interference with the above-mentioned insertion blade 3 and the above-mentioned temporarily formed blade 34.
- the former 66 can be pressed against the stator core 1 while maintaining the state where the insertion blade 3 and the temporary forming blade 34 are advanced.
- the pair of upper and lower formers 66 having such a structure is advanced toward the stator core 1 from above and below, respectively, and pressed against the stator core 1.
- the second end of the single-pole coil 8 of the two single-pole coils 8 disposed on the stator core 1 protrudes from above and below the stator core 1, as shown in FIG. Is formed temporarily.
- the magazine 2 is arranged inside the stator core 1 so that the coil holding groove 20 of the magazine 2 faces the slot 10 of the stator core 1.
- the relative positions of the magazine 2 and the stator core 1 are adjusted so that the coils of the first group, the first group described above, and the coils of the second group are displaced. Are shifted in the circumferential direction.
- the coil 8 is moved using the insertion blade 3 and temporary forming is performed using the temporary forming blade 34.
- the second temporary forming is performed using a pair of upper and lower formers 66 in the same manner as described above.
- the second temporary forming for the third group results in the main forming step. That is, when the coils of the third group are inserted into the stator core 1, all the 36 single-pole coils 8 are mounted on the stator core 1.
- the temporary forming by the temporary forming blade 34 is directly performed only on the 12 single-pole coils 8 of the third group.
- the forming by the former 66 which is performed as the second temporary forming, is performed on all the 36 single-pole coils 8, and is a main forming step for adjusting the shape of the entire coil.
- the use of the magazine 2 and the insertion blade 3 makes it possible to easily and stably perform the so-called straight-line insertion method. That is, as shown in Figs. 13 and 14, the coil 10 can be inserted straight into the slot 10 without changing the attitude of the coil 8. Therefore, the vertical direction of coil 8 There is no need to make the length longer than necessary. Specifically, as shown in Fig. 15, the vertical dimension L1 of the coil 8 inserted into the stator core 1 is the same as that of the conventional Fig. 6.
- the moving trajectories of the mutually adjacent coil insertion portions 801 of the adjacent single-pole coils 8 are parallel.
- the single-pole coil 8 can be easily arranged on the inner peripheral side of the stator core 1. Therefore, the effect that the coil insertion process can be easily performed can be added.
- each single-pole coil 8 Furthermore, looking at the movement of each single-pole coil 8, the two coil insertion sections 800 1 of each single-pole coil 8 start moving simultaneously and move at the same speed. I do. As a result, each single-pole coil can always move while keeping the distance between the coil insertion sections at the minimum distance, which eliminates the need to add extra length to the coil end section.
- the temporary forming groove 24 is provided in the magazine 2 and the temporary forming blade 34 is moved to perform the temporary forming. This makes it possible to easily perform temporary forming in which each time the single-pole coil 8 is mounted on the stator core 1, the coil end portion 802 of the coil is pressed outward and deformed. In addition, this work It can be performed simultaneously with the transfer, and the equipment and process can be simplified.
- the second temporary forming and the main forming of the coil 2 are performed by pressing the former against the stator core 1 using the former 66.
- the entire preformed coil can be formed into a desired shape at once by simply pressing the former 66 against the stator core 1.
- the second temporary forming and the main forming the coil end protruding from the stator core 1 can be formed so as to approach the stator core 1, so that the above-described axial dimension can be further reduced. .
- the former 66 is provided with the notch, and the former 66 can be pressed against the stator core 1 while the insertion blade 3 and the preforming blade 34 are kept in the advanced state. it can. Therefore, as described above, subsequent to the insertion of the coil 8 into the stator core 1 and the temporary forming, the second temporary forming by the foamer 66 and the final forming can be performed continuously, and the manufacturing process can be streamlined. Can be planned.
- the insert blade 3 was used as the coil insertion means, and the temporary forming blade 34 was used as the temporary forming means. It is also possible to use a divided insertion blade or a divided insertion hook and a divided temporarily formed blade or a divided temporarily formed hook having a divided structure. In this case, the divided insertion blade or the divided insertion hook and the divided temporary molded blade or the divided temporary molded hook can be integrated on the front and rear sides of the magazine 2 by respectively, and can be integrated. It can also be simplified.
- Example 2 a three-phase DC brushless motor is shown, but the above method can also be applied to motors with other structures.
- Example 2
- the coil insertion device 9 of the present example has an upper plate 92 fixed via a not-shown support extending from the bottom plate 91, and a magazine is provided above the upper plate.
- a magazine receiving stand 93 on which 2 is placed is provided.
- the magazine support 93 includes a flange 931 and a central projection 932 having a cylindrical shape with a smaller diameter than the flange 931.
- the bottom plate 91 is provided with a plurality of first arms 94 that are swingable around a fulcrum 941, and is arranged so that it can swing around a fulcrum 951.
- a plurality of second arms 95 are provided.
- the first arm 94 has an insertion blade 3 at its upper end, while the second arm 95 has a temporary forming blade 34 at its upper end.
- the first arm 94 has a long hole portion 942 that can be engaged with a pin 963 provided on the lifting plate 961.
- the second arm 95 has an elongated hole 952 that can be engaged with a pin 964 provided on the second lifting plate 962, as shown in the figure.
- the elevating plate 961 is connected to the cylinder 971, the elevating rod 972, the base plate 973, the connecting rod 974, etc., which are arranged on the bottom plate 91. It is configured to move up and down as the elevator port 972 driven by 971 moves up and down.
- the elongated holes 942 and 952 provided in the first arm 94 and the second arm 95 have inclined oblong holes.
- the vertical movement of the pins 963, 964 shifts the engagement positions of the pins 963, 964 and the slots 942, 952, so that the first arm 9
- the fourth and second arms 95 are configured to swing about fulcrums 941 and 951.
- the shapes of the long hole 942 of the first arm 94 and the long hole 952 of the second arm 95 have been slightly changed. JP2003 / 009699
- each of the first arms 94 has two insertion blades 3 arranged in parallel, and the two insertion blades 3 are connected to the first arm 94 in the same manner. It is configured to move in parallel with the swing direction. Note that the swing direction of all the first arms 94 is a direction along the radial direction A passing through the center of the tooth 15 located between the two slots 10 of the stator 1.
- each second arm 95 two temporary forming blades 34 are arranged in parallel, and the two temporary forming blades 34 are moved together with the second arm 95. It is configured to move parallel to the direction.
- the swing direction of all the second arms 95 is along the radial direction B passing through the center of the teeth 15 located between the two slots 10 of the stator 1.
- the inclination angle of the insertion blade 3 with respect to the vertical direction at the swing start position is set within 5 °.
- the tilt angle with respect to the vertical direction at the swing end position is set to 0 °.
- the angle between the coil insertion part 8001, which comes into contact with the insertion blade 3, and the slot 1 of the stator 1, is always 5 degrees.
- all the single-pole coils 8 can be simultaneously and substantially linearly moved toward the stator core 1 while maintaining the temperature within the range.
- two adjacent insertion blades 3 are arranged in parallel, and these press the adjacent coil insertion portions 800 1 of the adjacent single-pole coils 8.
- the adjacent coil insertion portion 81 can be pressed by the insertion plate 3 moving parallel to each other in the two coil holding grooves 20 arranged in parallel as described above, and the pressing point is always parallel. Keep. Then, the adjacent single-pole coil 8 reaches the slot 10 through the adjacent coil input section 8 0 1 It is extremely easy to move them parallel to each other and make their trajectories parallel.
- FIG. 20 another example of the above-described insertion blade is shown.
- the insertion blade 302 of this example has a substantially L-shape, and is composed of a base portion 303 extending in the horizontal direction and a vertical blade portion 304 extending in the vertical direction.
- the contact surface 300 of the vertical blade section 304 is provided as a vertical surface.
- a pair of upper and lower split insertion blades 320, 330 are used as insertion blades.
- the split insertion blades 320 and 330 of the present example are in the form of a pair of upper and lower strips.
- FIG. 3 is a diagram showing the movement of the laminations 320, 330 and the single-pole coil 8 viewed from the radial direction of the stator core 1.
- Fig. 22 shows the width of the part where the split blades 320 and 3330 are in contact with the coil 8 in the axial direction of the stator core 1, corresponding to each operation in Fig. 21.
- FIG. 3 is a diagram showing the movement of the laminations 320, 330 and the single-pole coil 8 viewed from the radial direction of the stator core 1.
- Fig. 22 shows the width of the part where the split blades 320 and 3330 are in contact with the coil 8 in the axial direction of the stator core 1, corresponding to each operation in Fig. 21.
- the divided input blades 32 0 and 3 30 approach and overlap. Then, the width dimension of the contact portion with the single-pole coil 8 gradually increases along the above-mentioned tapered portions 3255 and 335, and the single-pole coil 8 is gradually pushed into the slot 10 of the stator core 1. I will go.
- the input pressure applied to the single-pole coil 8 is applied to four locations that are substantially symmetric with respect to the winding center point of the single-pole coil 8, as shown in Fig. 29 described later. As a result, the single-pole coil 8 can be moved linearly from the state in which the single-pole coil 8 is arranged substantially parallel to the slot 10 while maintaining the attitude as it is.
- a magazine 202 having a structure different from that of the first embodiment is employed.
- the magazine 202 in this example has a support rod 203 for forming a coil holding groove for holding the single-pole coil 8.
- the coil insertion step can be performed as in the first embodiment.
- this example also employs a magazine 204 having a structure different from that of the first embodiment.
- the magazine 204 of this example is a magazine having a pair of upper and lower magazine plates 205 extending from the outside in the radial direction toward the inside in each pole.
- the single-pole coil 8 for one pole is held on the magazine plate 205 of the magazine 204, and this is mounted above and below the stator core 1 in the axial direction. I do.
- the single-pole coil 8 is pressed by an insertion blade or the like and moved into the slot 1 °.
- the coil insertion step can be performed by pulling out the magazine plate 205 holding each single-pole coil 8 one pole at a time or simultaneously at the same time a plurality of pieces to the outside in the radial direction.
- Figure 29 shows the multiple positions that are approximately symmetrical with respect to the winding center point of the single-pole coil 8, that is, the boundary between the coil insertion portion 8001 and the coil end portion 800 of the single-pole coil 8. This is an example in which an insertion pressure is applied to a corner pressing region F.
- Figure 30 shows the multiple positions that are approximately symmetrical with respect to the winding center point of the single-pole coil 8, that is, the boundary between the coil insertion portion 800 and the coil end portion $ 02 of the single-pole coil 8. This is an example in which an input pressure is applied to two opposing pressing areas F of the four corners.
- FIGS. 31 and 34 show examples in which an input pressure is applied to each of the pressing regions F of the two coil end portions 800 of the single-pole coil 8.
- FIGS. 32 and 33 show examples in which insertion pressures are applied to the pressing regions F of the two coil insertion portions 801 of the single-pole coil 8, respectively.
- the monopole coil 8 can be moved linearly while maintaining the angle between the coil insertion portion 800 of the monopole coil 8 and the slot 10 within 5 °.
- the examples shown in FIGS. 29 to 34 are merely examples, and the pressing area F, which is the position where the input pressure is applied, can of course be further changed.
- the insertion blade 3 can be used as a coil insertion means instead of the insertion blade 3 of the first embodiment.
- Figure 35 shows one split insertion hook 350 of a pair of split insertion hooks split on the front and back sides of the magazine.
- This split insertion hook 350 has an L-shaped cross-sectional shape hooked on both ends of the coil end portion 81, and as shown in FIG. 29 described above, the insertion pressure is applied to the square pressing area F. It is configured to grant.
- Fig. 36 also shows one of the pair of split hooks, which is split on the front and back sides of the magazine.
- the split insertion hook 352 has a U-shaped cross section that hooks over the entire coil end portion 801 and is configured to apply a insertion pressure as shown in FIG. 34 described above. I have.
- a magazine (winding jig) 7 having a special structure that also functions as a winding jig used in the coil forming process is used as the above magazine.
- a coil forming step is performed.
- a motor coil (see Fig. 50) consisting of three single-pole coils 8 formed by winding an electric wire 88 in a loop is formed.
- a winding jig (magazine) 7 and a rotating device 74 are used as a coil forming device.
- the winding jig 7 has a base holder 70 and a plurality of winding frames 4 arranged on the outer peripheral surface of the base holder 70.
- Each winding The frame 4 is provided so as to be able to advance and retreat with respect to the base holder 70, and is configured so that any one of the winding frames 4 can protrude more than the other winding frames.
- the rotating device 74 is configured to rotate the entire winding jig 7 about the axis C in the direction of movement of the projecting winding frame 4.
- the coil forming apparatus of this example will be described in more detail.
- the base holder 70 has a disk shape. That is, the base holder 70 has a pair of upper and lower ring-shaped plates 71, 72, each of which has a central through-hole 71 0, 72, and a plurality of positioning holes 7 12, 2, 7 around it. Has 2 2 The central through-holes 7 10 and 7 20 and the surrounding positioning holes 7 12 and 7 2 2 are used to determine an engagement position with a rotating device 74 described later.
- the pair of upper and lower ring-shaped plates 71 and 72 are connected via a separate plate 79 arranged along a direction extending radially from the center.
- a separate plate 79 arranged along a direction extending radially from the center.
- four separate plates 79 with an internal angle of 15 ° were arranged, and four separate plates 79 with an internal angle of 15 ° were also installed at positions facing these.
- the bobbin 4 was placed in a space with an internal angle of about 15 ° provided between the adjacent separate plates 79.
- three winding frames 4 are arranged adjacent to each other, and a total of six winding frames 4 are provided.
- the winding jig 7 of the present example is further provided with a separate plate 79 and a bobbin in a vacant position on the outer peripheral surface of the disc-shaped base holder 70. 4 can be arranged, and up to 12 winding frames 4 can be provided.
- the reels 4 are arranged so as to be able to advance and retreat along an axis extending radially from the center of the base holder 70.
- And has a fan-shaped shape whose width increases along the axis. That is, as shown in Fig. 39, if the surfaces parallel to the ring-shaped plates 71, 72 of the base holder 70 are the front surface and the back surface, respectively, as shown in FIG. Has a frame body 42 with a notch 420 at the center. Also, on both sides of the frame main body 42, a stepped portion 25 is provided so that when a single-pole coil 8 is formed, its position is determined.
- Formed blocks 43, 44 for adjusting the shape of the wound single-pole coil are detachably provided on the front and back surfaces of the frame main body 42.
- the molded blocks 43 and 44 also have a substantially sector shape, and have cutouts 43 ⁇ and 450 at the center.
- the molded blocks 43, 44 are fixed to the frame body 42 by screwing screws (not shown).
- the thickness of the formed blocks 43, 44 in this example is increased from the outer circumference to the inner circumference, and the height of the single-pole coil formed is It is set to be higher as it comes closer to the circumference.
- the frame main body 42 has a rectangular through hole 429 in the axial direction from the cutout 420 to the base holder 70.
- a rod hole 428 which is a circular through hole, is provided above and below the through hole 429. Then, the winding frame 4 is disposed in the base holder 70 so as to be able to advance and retreat by fixing the guide plate 41 through the through hole 429 to the base holder 70.
- the guide plate 41 has a base end portion 4 15 fixed to the base holder 70 and a substantially T-shaped portion for regulating the advance position of the winding frame 4. And a front end portion 410 whose dimension in the vertical direction is increased.
- the base end 415 of the guide plate 41 is passed through the through-hole 429 opened at the bottom of the cutout 420 of the frame main body 42, and Rods 4 5 with ring 4 6 are provided above and below the through holes 4 2 9 in the frame body 4 2 Through the hole 4 2 8
- the base end 4 15 of the guide plate 41 is sandwiched and fixed between a pair of upper and lower ring-shaped plates 7 1, 7 2 of the base holder 70, and one end of the two rods 45 is connected to a ring. And the other end is fixed to the distal end 4 10 of the guide plate 41.
- the bobbin 4 is fixed to the base holder 70 so as to be able to advance and retreat. As shown in Figs.
- the winding frame 4 has a positioning pin 4 which can be moved forward and backward by pinching and operating the pin head 480. 8 above and below.
- the guide plate 41 has pin holes 418, 419 that can be engaged with the pin tip 481.
- the positioning pin 48 is retracted to disengage the pin tip 4 81 from the pin hole 4 18, and the winding frame 4 is moved by the spring 4 6.
- the positioning pin 48 is advanced again to engage the pin tip portion 481 with the pin hole 419.
- the winding frame 4 is configured to advance in the axial direction and be fixed at a position away from the base holder 70.
- each of the winding frames 4 arranged as described above there are separate plates 79 extending from the outer peripheral surface of the base holder 70. A predetermined space functioning as a coil holding groove 20 described later is held between the separate plate 79 and the winding frame 4.
- the coil holding groove 20 is provided with the above-mentioned coil holding groove (for example, 20 A 2 in FIG. 40) in which adjacent coil insertion portions 81 of adjacent single pole coils 8 are arranged. And 2 OB 1, or 20 B 2 and 20 C 1) are provided parallel to each other.
- the winding jig 7 in this example is in a state in which all of the winding frame 4 is retracted.
- the outer shape line formed by the end of the winding frame 4 is a circular shape centered on the center point of the base holder 70. That is, the winding jig 7 of the present example has such a shape that the winding frames 4 can be arranged so as to face the inner peripheral surface of the stator core described later.
- the rotating device 74 of the present example includes a straight portion 741 extending from a drive shaft (not shown) and a flange 751 attached to the straight portion 741. , 752 and a bending flange 76 connected to the winding jig 7 at the front end of the bending portion 76.
- the bent portion 76 has a first portion 761, which extends coaxially with the straight portion 741, and a second portion 76, which is bent 90 degrees from the first portion and extends. 2, a third portion 763 that is bent 90 degrees from the second portion 762 and parallel to the straight portion 741, and a fourth portion 7 that is bent 90 degrees from the third portion 763. 6 and 4.
- the connection flange 770 is provided at the end of the fourth portion 746.
- connection flange 77 is connected to the base holder 70 of the winding jig 7, the center point in the thickness direction and the radial direction of the base holder 70 is The position is adjusted so as to be on the axis of the straight portion 741.
- connection flange 77 and the winding jig 7 in the circumferential direction is such that the axis C of the winding frame 4 and the rotation center C2 of the straight portion 741 of the rotating device 74 are aligned. It is configured such that it can be appropriately changed at the position where it matches.
- a winding frame protruding step of advancing the first winding frame 4a so as to protrude beyond the other winding frames 4 is performed.
- the fixing by the positioning pins 48 (FIGS. 51 to 53) which fixed the winding frame 4a at the retracted position is released, and the winding frame 4a is moved forward against the spring 46. It is again fixed at its forward position by the positioning pin 48.
- the electric wire 88 is supplied from one direction above, and the end is fixed to the winding jig 7.
- a fixed position may be fixed by using a special fixing device, or a method of connecting the winding jig 7 to an arbitrary position may be adopted. In this example, the latter method was used.
- an electric wire 88 is supplied to the protruding winding frame 4a from one direction, and the rotating device 74 is driven so that the axis C of the winding frame 4a is centered.
- a winding step of rotating the entire winding jig 7 is performed.
- the electric wire 88 is wound around the projecting winding frame 4a, and the formation of the first monopolar coil 8 is completed.
- a winding frame retreating step of retreating the first winding form 4a on which the monopolar coil 8 is formed is performed.
- the reel 4a is fixed at the retracted position by operating the positioning pins 48 (Figs. 51 to 53) again.
- the single-pole coil 8 formed around the winding frame 4a has the coil end portions 082 located above and below the loop exposed on the front and back of the winding frame 4, and Is accommodated in the gap between the separate plate 79 and the winding frame 4.
- the second bobbin 4b next to the first bobbin 4a on which the unipolar coil 8 is formed is advanced along the axis C, and the other bobbin 4 Also protrude outward and fix in the forward position as described above. 2003/009699
- the connecting wire 885 connected from the single-pole coil 8 held by the first winding frame 4a is passed below the second winding frame 4b, Electric wires 88 are supplied from above in one direction as before.
- an electric wire 88 is supplied to the projecting winding frame 4b from one direction, and the entire winding jig 7 is rotated around the axis C of the winding frame 4b. Perform the winding process to rotate.
- the direction of rotation at this time is opposite to the case of the first winding frame 4a.
- the electric wire 88 is wound around the protruding winding frame 4b, and the winding direction of the second unipolar coil 8 is opposite to that of the first monopolar coil 8. The formation is completed.
- the second reel 4b on which the single-pole coil 8 is formed is retracted, and fixed at the retracted position in the same manner as described above.
- the second monopole coil 8 formed around the winding frame 4b also has the coil end portions 800 located above and below the loop exposed on the front and back sides of the winding frame 4.
- the left and right coil insertion portions 81 are accommodated in the gap between the separate plate 79 and the winding frame 4.
- the third bobbin 4c next to the second bobbin 4b is advanced along the axis C, and protruded outward from the other bobbin 4. Fix in the forward position as described above. Also in this case, the engaging position between the winding jig 7 and the rotating device 74 is changed before or after the winding frame projecting process, and the rotation center C 2 of the rotating device 74 (FIG. 7, Fig. 38) and the axis C of the third bobbin 4c.
- the electric wire 88 is supplied from one direction to the projecting winding frame 4c, and the winding jig 7 is wound around the axis C of the winding frame 4c. Perform the winding process to rotate. The direction of rotation at this time is opposite to that of the case of the second winding frame 4c.
- the electric coil spring 88 is wound around the protruding winding frame 4c to form a third monopole coil 8 whose winding direction is opposite to that of the second monopole coil 8. Is completed.
- the third winding frame 4c on which the single-pole coil 8 is formed is retracted and fixed at the retracted position in the same manner as described above.
- the coil insertion portion 81 of the third single-pole coil 8 formed around the winding frame 4c was also accommodated in the gap between the separate plate 79 and the winding frame 4. State.
- three winding frames 4 d to 3 f facing the three winding frames 4 a to 3 c forming the above-mentioned coil are also processed by the same procedure as above. It is possible to form a coil in which the single-pole coils 8 are alternately connected so that the winding directions are reversed.
- the winding jig 7 having the above structure having the base holder 70 and the winding frame 4 and the rotating device 74 are used. Then, as described above, the reel projecting step, the winding step, and the reel retracting step are sequentially performed for each reel.
- the winding step is performed by rotating the entire winding jig about the axis C of the projecting winding frame 4. Therefore, as described above, the electric wire 88 can be supplied from one direction, and the unipolar coil 8 can be formed on the winding frame 4 without causing the electric wire 88 to twist.
- the winding step is performed after the winding step, and the winding step is performed after the winding step. That is, when changing the winding frame 4 on which the winding process is performed, the winding frame 4 can be changed by moving the winding frame 4 forward and backward in the winding frame projecting process and the winding frame retreating process. There is no need to provide any special space between 4 for the electric wire supply. Therefore, the obtained length of the crossover 885 between the single-pole coils 8 can also be kept sufficiently short.
- each winding frame 4 of the winding jig 7 has a substantially sector shape as described above, and the forming blocks 43 and 44 are disposed on the front and back surfaces thereof. I have. As described above, the thickness of the formed blocks 43 and 44 increases from the outside to the inside. Therefore, in the single-pole coil 8 wound around the winding frame 4, the shape of the plurality of electric wire loops constituting the coil is changed along the axis C of the winding frame 4.
- the plurality of electric wire loops constituting the single-pole coil 8 become wider outwardly along the fan-shaped winding frame 4 and have a height along the shape of the forming blocks 43, 44. Becomes lower. This makes it possible to optimize the arrangement of the coil end portion 802 when the coil is mounted on the stator core, as described later.
- the monopole coil 8 is formed when the electric wire 8 is wound. Each wire (winding) can be prevented from shifting.
- the outer shape formed by the leading end of the winding frame 4 in a state where all of the winding frame 4 is retracted has a circular shape.
- Each winding frame 4 can be located facing the inner peripheral surface.
- Separate plates 79 extending from the outer peripheral surface of the base holder 70 are present on both sides of each winding frame 4.
- the gap between the separate plate 79 and the winding frame 4 functions as a coil holding groove 20.
- mounting work to the stator core by linear movement of each single-pole coil 8 can be realized along the coil holding groove.
- a coil (see Fig. 50) is inserted into slot 10 provided on the inner peripheral surface of the ring-shaped stator core 1.
- the coil (single-pole coil 8) is not shown in order to clarify the movement of the insertion blade 3 and the like described later.
- the motor configured using the stator core 1 is a three-phase DC brushless motor.
- the stator core 1 in this example is also manufactured by laminating ring-shaped electromagnetic steel sheets, and as shown in Figs. 54 and 55, a slot 10 for inserting a coil into its inner peripheral surface. have.
- 72 slots 10 are provided for the stator core 1 with a total of 36 single-pole coils 8. And there are 12 single-pole coils 8 that carry one phase.
- two sets of three single-pole coils 8 are produced by one winding jig 7 and are mounted on the stator core 1 at the same time. By performing this work six times, all necessary unipolar coils 8 are mounted on the stator core 1.
- a coil holding groove 79 formed between the winding frame 4 and the separation plate 79 of the winding jig 7 is provided.
- the winding jig 7 is arranged inside the stator core 1 so that 0 faces the slot 10 of the stator core 1.
- the insertion blade 3 is inserted into the coil holding groove 790 of the winding jig 7.
- the notch part 420 provided on the frame body part 42 of the winding frame 4 of the winding jig 7 and the forming blocks 43, 44 above and below it are provided.
- the cutouts 4330 and 4400 (see Fig. 39) provide temporary forming grooves 795 for inserting the temporary forming blade 34.
- the insertion blade 3 is advanced in the direction from the center to the outer periphery in the coil holding groove 790, and at the same time, the temporary molding blade 34 is moved into the temporary molding groove 795.
- the single-pole coil 8 is pushed by the insertion blade 3 and moves substantially linearly from the coil holding groove 790 to the slot 10 of the stator core 1.
- the upper and lower coil end portions 802 (FIG. 50) of the single-pole coil 8 that protrude from the stator core 1 are subjected to temporary forming, which is pressed by the temporary forming blade 34 and deforms outward.
- Such forward movements of the insertion blade 3 and the preforming blade 34 are all performed simultaneously on the six monopole coils 8, and the six monopole coils 8 are simultaneously inserted into the slots 10 of the stator core 1. Purchased.
- the second temporary forming is performed using a pair of upper and lower formers 66 (see FIG. 12) similar to those in the first example.
- the former 66 has a ring shape, and has a mold surface 660 on the side facing the stator core 1 for shaping the coil into a desired shape.
- each former 66 is provided with a cut-out portion 665 for preventing interference with the above-mentioned insert blade 3 and the above-mentioned temporary forming blade 34. The former can be pressed against the stator core 1 while maintaining the state where the insertion blade 3 and the preformed blade 34 are advanced.
- the pair of upper and lower formers 66 having such a structure is advanced toward the stator core 1 from above and below, respectively, and pressed against the stator core 1.
- the second coil end portion 802 protruding from above and below the stator core 1 of the six single-pole coils 8 disposed on the stator core 1 as described above is tilted toward the stator core 1 so that the second Temporary molding is performed.
- two sets of three single-pole coils 8 are formed on the winding jig 7 using the above-described coil forming apparatus. Then, in the same manner as described above, the movement of the coil from the winding jig 7 directly to the stator core 1 and the temporary forming and the second temporary forming are performed.
- the process from the formation of six single-pole coils to the second temporary forming was performed as a series of operations, and this operation was repeated six times. It can also increase efficiency. Furthermore, the number of winding frames 4 in the winding jig 7 is increased from six to twelve, and the process is streamlined by moving twelve monopole coils 8 to the stator core 1 at a time. It is also possible. As described above, also in this example, by using the winding jig 7 and the insertion blade 3, a so-called linear insertion method for easily and stably moving the coil linearly can be performed.
- the coil holding groove 20 formed between the winding frame 4 and the separate plate 79 is formed in such a way that the adjacent ones of the single-pole coils 8 on which the adjacent coil insertion portions 81 are arranged are parallel to each other. is there. Therefore, as in the first embodiment, the movement trajectories before being inserted into the slot 10 of the coil insertion portion 801 can be reliably made parallel. Then, it is possible to linearly enter the slot 10 without changing the attitude of the single-pole coil 8. Therefore, it is not necessary to lengthen the coil vertically.
- the coil can be moved from the winding frame 4 on which the coil is formed to the stator core 1 directly. After forming the coil, there is no need to transfer the coil from the bobbin to another coil transfer machine, which is very effective.
- the coils can be efficiently mounted on the stator core. This is because, as already described in detail, the structure of the winding jig 2 has an excellent structure as described above.
- the edge insertion process is performed.
- the slot 10 of the stator core 1 in this example has a slot open portion 102 with a narrowed space at the inner peripheral end and a slot open portion 102 at the outer peripheral side. It has a general part 101 with a wide space width.
- an edge insertion step of inserting an edge 901 into the slot 10 so as to close the inner peripheral opening in the slot 10 is performed.
- the edge 901 has a wide portion 911 located in the general portion 101 of the slot 10 and a width smaller than that of the wide portion 912.
- An edge 9101 having a convex portion 912 provided to protrude from 11 and disposed in the slot open portion 102 was used.
- the stator core 1 in this example has a ring shape, and a plurality of teeth 105 are provided on the inner peripheral portion as shown in FIG. 57, and the slots 10 are formed therebetween.
- each tooth 105 has a diameter from the outer circumference to the outer circumference. It has a protruding portion 106 that protrudes in the circumferential direction at the tip end while extending in the direction.
- the space facing the protruding portion 106 is the above-mentioned slot open portion 102 in the slot 10, and the space on the outer peripheral side thereof is the above-mentioned general portion 101.
- an insulating film 107 made of a synthetic resin having electrical insulation properties is provided in advance on the entire inner peripheral surface of the slot 10. Specifically, a film made of LCP (Liquid Crystal Polymer) was previously formed. In this example, the thickness of the insulating film 107 was about 300 / zm. As the insulating film 107, a sheet of aramid fiber having a conventional electrical insulating property can be applied.
- LCP Liquid Crystal Polymer
- the edge ⁇ 9101 is made of LCP (Liquid Crystal Polymer) as a material and is integrally molded into the shape having the wide portion 911 and the convex portion 912 described above. .
- the height H1 of the convex portion 912 was set to be slightly smaller than the radial dimension of the slot-open portion 102, that is, the thickness of the teeth 105.
- the widths W l, W 2 of the convex portion 912 and the wide portion 911 correspond to the dimensions of the space width of the slot open portion 10 2 of the slot 10 and the general portion 10 1. The dimensions were designed so that a slight clearance (not shown) could be obtained between the teeth 105 and the teeth 105.
- This clearance is sufficiently smaller than the dimension L (FIG. 57) of the inner wall surface forming the slot open portion 102 of the stator core 1 projecting from the inner wall surface forming the general portion, and the slot 10
- the diameter was set to be sufficiently smaller than the diameter D (Fig. 57) of the electric wire that constitutes the coil to be inserted and placed in the space.
- a slight clearance is provided between the ⁇ edge 901 and the teeth 105 in terms of design, as described above, in order to improve the insertion workability. ⁇ Because it plays a role in preventing the rotation of the edge 901, the clearance should be as small as possible. Most preferably, wearing PC Kasumi 003 Bell 699
- the work to insert the above-mentioned ⁇ edge 901 into the slot 10 of the stator core 1 was performed after the insertion work of all the single-pole coils 8 into the slot 10 was completed.
- the single-pole coil 8 formed by winding a wire 88 in advance is moved substantially linearly from the inner peripheral side of the stator core 1 to enter the slot 10.
- a straight-line insertion method (radial insertion method) was used.
- the edge 901 was inserted into the inner peripheral opening of the slot 10 from the axial direction.
- the convex portion 9 12 of the edge 9 0 1 is located on the inner peripheral side of the stator core 1, and the wide portion 9 11 1 is located on the outer peripheral side, and the slot open portion 10 2 of the slot 10 respectively. And the general part 101.
- the wide part 911, the convex part 912, and the force of the wedge 901 are positioned with the general part 101 of the slot 10 and the slot open part 102, respectively.
- a state in which the inner peripheral opening of the slot 10 is securely closed can be obtained.
- the ⁇ edge 91 of this example has a shape including the wide portion 911 and the convex portion 912, and is formed by bending a conventional sheet-like material. Compared to, the rigidity is much better in terms of shape. For this reason, after the single pole coil 8 is inserted into the slot 10 of the stator core 1 by the radial insertion method, it has sufficient strength to withstand the insertion of the edge 901 alone. In addition, the width of the slot open part can be made wider than before by utilizing the rigidity improvement of the wedge 901. Therefore, the radial input method described above can be performed more stably, and the manufacturing process can be streamlined.
- the wide portion 911 and the convex portion 912 of the edge 9101 are, as described above, the general portion 101 of the slot 10 of the stator core 1 and the slot orb, respectively. Section 102.
- a state is obtained in which the convex portion 912 is engaged with the slot open portion 102, and it is possible to prevent the edge 9101 from rotating and falling out of the slot open portion 102. Therefore, a stable closed state of the inner peripheral opening 109 of the slot 10 can be maintained.
- an input device 980 capable of sequentially performing coil insertion and edge insertion is used.
- the insertion device 98 ⁇ includes a coil insertion portion 98 1 for linearly moving the single-pole coil 8 from the inner peripheral side of the stator core 1 to the outer peripheral side to perform a radial insertion method, and a ⁇ edge 90 0. It has an edge insertion section 9900 for moving 1 in the axial direction.
- the axial and radial directions refer to the axial and radial directions of the motor when the stator core 1 is arranged.
- the coil insertion section 981 has a blade unit 982 provided so as to be movable in the radial direction, and an insertion blade 983 standing upright from the blade unit 982 in the axial direction. .
- the coil insertion portion 981 is provided so as to be movable in the axial direction together with the edge pusher 995 when it comes into contact with the edge pusher 995 described later.
- the edge insertion portion 9990 has an edge magazine 993 having an arrangement hole 991 for disposing the edge 9101 and an edge pusher 994 having a pressing pin portion 994 for pressing the edge 9101. 9 9 5 is provided.
- the pressing pin portion 994 extends in the axial direction from the arm portion 996 radially extending from the edge pusher 995. As the push pin portion 995 moves in the axial direction, the pressing pin portion 994 extends in the axial direction. It is configured to move.
- the edge pusher 995 and the edge magazine 993 are provided so as to be synchronously movable in the axial direction until the edge magazine 993 contacts the stator core 1.
- the insertion plate 983 moved from the inner circumference to the outer circumference is applied to the coil 8 positioned on the inner circumference of the stator core 1. And move it to the outer circumference.
- the coil 8 is inserted and arranged in the slot 10 of the stator core 1 in a linear motion.
- edge 9101 is previously arranged in the arrangement hole 991 of the edge magazine 993.
- ⁇ edge magazine 993 and ⁇ edge pusher 995 are synchronized and lowered in the axial direction.
- FIG. 61 after the lower end of the edge pusher 995 abuts against the play unit 982, as shown in FIG. 62, the edge insertion section 990 and the coil insertion section as shown in FIG. The whole of 9 8 1 moves synchronously downward in the axial direction.
- the ⁇ edge 9 101 force of the present example has a highly rigid shape having the wide portion 9 11 and the convex portion 9 12 as described above, the pressing force by the pressing pin portion 7 2 Smooth import operation that can withstand enough Is realized.
- FIGs. 64 and 65 another example is shown in which two single-pole coils 8 are simultaneously inserted into the slots 10 of the stator core 1 in the coil insertion process.
- the coil insertion means used in this example is to move the insertion blades 38 1 to 38 4 that can be inserted into the coil holding groove 20 of the magazine 2 by pressing the pair of front and back pusher plates 39. Was configured.
- the magazine 2 has a coil holding groove 20 into which the adjacent coil insertion portion 800 (b, c in FIG. 64) of the adjacent single-pole coil 8 is inserted. They are provided in parallel.
- the pusher plate 39 has its forward direction (the direction of arrow G) set parallel to the two parallel coil holding grooves 20 described above.
- the pusher plate 39 has a central flat portion 390 arranged perpendicular to its forward direction (the direction of the arrow G) and retreats from the central flat portion 391 on both sides. It has parts 391 and 392.
- the central flat portion 390 presses the insertion plates 382, 383 that abut the adjacent coil insertion portions 801b, c of the two adjacent monopole coils 8, and tilts both sides.
- the parts 391, 392 are configured to press the insertion blades 381, 384 that abut against the coil insertion parts 801a, 801d, respectively.
- each of the insertion blades 381 to 3884 has an engaging pin portion 3885 so as to protrude from the front surface and the back surface of the magazine 2, respectively. These are brought into contact with the pusher plate 39 described above.
- the two introduction blades 38 2, 38 3 that abut against the central flat portion 39 0 of the pusher plate 39, have the introduction blades 38 1, 38 located on both sides thereof. It is provided slightly longer in the radial direction than 4, and the tip positions of all the insertion blades 381, 384 are adjusted so that they are located on one arc with respect to the center of the stator core 1.
- the inclination angle ⁇ of the inclined parts 39 1 and 39 2 of the pusher plate 39 inserts the two coil insertion parts 80 1 (a and b or c and d) of each unipolar coil 8
- FIGS. 64 (a) and 65 In order to insert the two single-pole coils 8 into the slots 10 of the stator core 1 using the magazine 2 and the coil insertion means having such a configuration, first, FIGS. 64 (a) and 65 ( As shown in a), the two single-pole coils 8 are held by the magazine 2 as a coil holding means, and the magazine 2 is arranged inside the stator core 1. Thus, inevitably, the coil insertion portion 801 of each single-pole coil 8 faces the inner peripheral opening 209 of the slot 10 and is substantially parallel to the axial direction of the stator core 1. Are arranged with two monopole coils 8. Next, the coil insertion means is arranged, and the pair of front and back pusher plates 39 is advanced in the direction of arrow G. As a result, the four insertion blades 38 1 to 38 4 that are in contact with the pusher plate 39 are pushed by the pusher plate 39 and move forward along the coil holding groove 20.
- the single-pole coil 8 can be moved substantially linearly toward the stator core 1, but also the adjacent coil insertion portions 8 of the adjacent single-pole coils 8 can be moved.
- O lb, c can be moved so that the trajectories before being inserted into the slot 10 are parallel.
- the two coil inlets 8 0 1 (a and b or c and d) of each single-pole coil 8 can start moving simultaneously and move at the same speed.
- the coil insertion portions 8 0 1 (and c) of the adjacent single-pole coils 8 can also start moving at the same time and move at the same speed.
- To c can be simultaneously inserted into the slot 10 of the stator core 1.
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Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/496,671 US7275299B2 (en) | 2002-07-30 | 2003-07-30 | Motor manufacturing process |
| EP03771441A EP1526630B1 (en) | 2002-07-30 | 2003-07-30 | Motor manufacturing method |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2002/007749 WO2003012961A1 (fr) | 2001-07-31 | 2002-07-30 | Procede de fabrication d'un moteur et appareil d'insertion d'un enroulement |
| JPPCT/JP02/07749 | 2002-07-30 | ||
| JP2003023222A JP4259127B2 (ja) | 2002-07-30 | 2003-01-31 | モータの製造方法 |
| JP2003-23222 | 2003-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004012324A1 true WO2004012324A1 (ja) | 2004-02-05 |
Family
ID=31189660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/009699 Ceased WO2004012324A1 (ja) | 2002-07-30 | 2003-07-30 | モータの製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1526630B1 (ja) |
| JP (1) | JP4259127B2 (ja) |
| KR (1) | KR100965500B1 (ja) |
| CN (1) | CN100471011C (ja) |
| WO (1) | WO2004012324A1 (ja) |
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| WO2023030782A1 (de) * | 2021-09-01 | 2023-03-09 | Gehring Technologies Gmbh + Co. Kg | Vorrichtung und verfahren zur bestückung eines statorkerns mit leiterstücken |
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| CN1767319B (zh) * | 2004-10-29 | 2010-09-29 | 株式会社日立制作所 | 旋转电机及其制造方法 |
| FR2896352B1 (fr) * | 2006-01-16 | 2014-08-22 | Valeo Equip Electr Moteur | Dispositif de transfert radial d'un bobinage de stator |
| US20100133945A1 (en) * | 2009-06-05 | 2010-06-03 | Remy International Inc. | Segmented stator core winding apparatus and method of winding a segmented stator core |
| US7712697B1 (en) * | 2009-06-05 | 2010-05-11 | Remy Technologies, L.L.C. | Core winding apparatus and method of winding a core |
| CN101667766B (zh) * | 2009-09-22 | 2011-06-22 | 天津市天发重型水电设备制造有限公司 | 一种高压电机圈式线圈渐进下线方法 |
| US9118225B2 (en) | 2012-08-24 | 2015-08-25 | Caterpillar Inc. | Coil with twisted wires and stator assembly of a rotary electric machine |
| JP6203785B2 (ja) | 2015-06-25 | 2017-09-27 | ファナック株式会社 | 8の字状の連結コイルを有する電動機とその製造方法 |
| JP6583041B2 (ja) * | 2016-02-18 | 2019-10-02 | アイシン・エィ・ダブリュ株式会社 | ステータの組立方法 |
| JP6591658B2 (ja) * | 2016-03-22 | 2019-10-16 | 本田技研工業株式会社 | 整列方法および整列装置 |
| CN106787475B (zh) * | 2016-12-25 | 2023-05-05 | 中船重工电机科技股份有限公司 | 发电机转子塔形线圈整形装置 |
| JP2018107990A (ja) * | 2016-12-28 | 2018-07-05 | 日本電産株式会社 | 支持部材装着方法、及びモータ |
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| JP7487676B2 (ja) * | 2021-01-29 | 2024-05-21 | ニデック株式会社 | コイル挿入装置 |
| KR20240043949A (ko) | 2022-09-28 | 2024-04-04 | 현대자동차주식회사 | Afpm 모터 고정자 및 그 제조 방법 |
| CN115833507B (zh) * | 2022-11-30 | 2026-04-17 | 浙江鸿运实业有限公司 | 一种起动机转子自动绕线工装 |
| WO2025173669A1 (ja) * | 2024-02-15 | 2025-08-21 | 日本発條株式会社 | セグメントコイルの装填装置及び方法 |
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| JPS5619363A (en) | 1979-07-19 | 1981-02-24 | Matsushita Electric Ind Co Ltd | Inserting method for coil winding and inserting device for coil winding |
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| US3193913A (en) * | 1960-09-02 | 1965-07-13 | Harry W Moore | Coil transferring machine |
| JPS59103549A (ja) * | 1982-12-01 | 1984-06-15 | Hitachi Ltd | コイルの挿入装置 |
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| US5060364A (en) * | 1990-11-01 | 1991-10-29 | Advanced Machine & Tool Corporation | Wedge inserter with intermediate wedge support |
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2003
- 2003-01-31 JP JP2003023222A patent/JP4259127B2/ja not_active Expired - Fee Related
- 2003-07-30 EP EP03771441A patent/EP1526630B1/en not_active Expired - Lifetime
- 2003-07-30 WO PCT/JP2003/009699 patent/WO2004012324A1/ja not_active Ceased
- 2003-07-30 KR KR1020057001603A patent/KR100965500B1/ko not_active Expired - Fee Related
- 2003-07-30 CN CNB038016842A patent/CN100471011C/zh not_active Expired - Fee Related
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|---|---|---|---|---|
| JPS51138803A (en) * | 1975-05-28 | 1976-11-30 | Hitachi Ltd | Inserting device of coil into electric motor |
| JPS5594567A (en) * | 1979-01-10 | 1980-07-18 | Nippon Denso Co Ltd | Winding method for winding unit of rotary machine |
| JPS5619363A (en) | 1979-07-19 | 1981-02-24 | Matsushita Electric Ind Co Ltd | Inserting method for coil winding and inserting device for coil winding |
| JPS631349A (ja) * | 1986-06-20 | 1988-01-06 | Yaskawa Electric Mfg Co Ltd | 巻線装置 |
| US4908541A (en) * | 1986-08-28 | 1990-03-13 | Mitsuba Electric Mfg., Co., Ltd. | Air-cooled layered coil vehicle AC generator stator |
| JPH099588A (ja) * | 1995-06-21 | 1997-01-10 | Toyota Motor Corp | モータのステータ作製方法 |
| JP2002325408A (ja) * | 2001-02-20 | 2002-11-08 | Nissan Motor Co Ltd | コイル挿入方法および装置 |
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| WO2023030782A1 (de) * | 2021-09-01 | 2023-03-09 | Gehring Technologies Gmbh + Co. Kg | Vorrichtung und verfahren zur bestückung eines statorkerns mit leiterstücken |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100471011C (zh) | 2009-03-18 |
| KR20050113160A (ko) | 2005-12-01 |
| CN1596498A (zh) | 2005-03-16 |
| KR100965500B1 (ko) | 2010-06-25 |
| EP1526630A1 (en) | 2005-04-27 |
| EP1526630A4 (en) | 2006-10-25 |
| EP1526630B1 (en) | 2012-08-29 |
| JP2004064990A (ja) | 2004-02-26 |
| JP4259127B2 (ja) | 2009-04-30 |
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