Rotating electric machine and method for manufacturing the same

Abstract

A rotating electric machine and a method for manufacturing the rotating electric machine. A connection structure that absorbs deviations in component size and assembly size when a lead conductor, i.e., a terminal block, is connected to a power supply terminal connected to a power supply terminal. The structure comprises: a terminal block having a power supply protrusion that distributes current to a plurality of coils arranged around a rotating shaft, the power supply protrusion extending in the axial direction of the rotating shaft and introducing current from the outside; and a terminal that supplies power to the terminal block via an engaging portion that extends in the radial direction of the rotating shaft and engages with the power supply protrusion of the terminal block.

Description

Technical Field

[0001] The present application relates to a rotating electric machine and a method for manufacturing the rotating electric machine. Background Art

[0002] In a rotating electrical machine, a power terminal for supplying power to a coil of an armature and a power supply portion of a terminal block are joined by TIG welding, but in this case, the heat input is likely to be large in order to melt the base material and join, and the insulating film on the surface of the conductor is likely to be damaged. Therefore, the conductor and the alloy of the joining member with a low melting point are used to form a joint portion, and the conductors are joined together.

[0003] Since the linear energy is still locally increased in the above-mentioned low melting point joint, the contact area between the power terminal and the power supply part of the terminal block needs to be set larger. In addition, if the position of the fitting part of the parts to be joined is offset during welding, the welding will be offset. Therefore, a structure is adopted to maintain the position of the fitting part by pressing or riveting (for example, Patent Document 1).

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Laid-Open No. 2007-311123 (pp. 7-8, Figure 3 ) Summary of the invention

[0007] In the connection structure of the power supply part shown in Patent Document 1, the direction in which the bending part can be displaced is only one direction, so it is difficult to fully absorb the deviation of the installation dimensions in two directions orthogonal to the above one direction. Therefore, for directions other than the direction of absorbing position deviation, it is necessary to improve the accuracy of the component dimensions and assembly dimensions, which increases the cost. In addition, the bending part has lower rigidity than other parts, so there is a problem that it is difficult to make the system vibration-resistant.

[0008] The present application is completed to solve the above-mentioned problem, and its purpose is to obtain a rotating electric machine and a manufacturing method of a rotating electric machine, including a connection structure of a power supply part, wherein the connection structure of the power supply part can absorb the deviation of the component size and assembly size when the lead-out conductor, i.e., the terminal block power supply part, is connected to the power terminal connected to the power supply terminal.

[0009] The rotating electric machine disclosed in the present application includes: a terminal block, which has a power supply protrusion, which distributes current to multiple coils arranged around a rotating shaft, and the power supply protrusion extends in the axial direction of the rotating shaft and introduces current from the outside; and a terminal, which supplies power to the terminal block through an interlocking portion, and the interlocking portion extends in the radial direction of the rotating shaft and interlocks with the power supply protrusion of the terminal block.

[0010] According to the present application, it includes: a terminal block, which has a power supply protrusion, which distributes current to multiple coils arranged around a rotating shaft, and the power supply protrusion extends in the axial direction of the rotating shaft and introduces current from the outside; and a terminal, which supplies power to the terminal block through an engaging portion, and the engaging portion extends in the radial direction of the rotating shaft and engages with the power supply protrusion of the terminal block, so that deviations in component size and assembly size when the terminal block is connected to the terminal can be absorbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram showing a cross section of the rotating electrical machine according to the first embodiment of the present application.

[0012] Figure 2 It is a perspective view showing the entire armature of the rotating electrical machine according to the first embodiment of the present application.

[0013] Figure 3 It is a perspective view showing the coil of the rotating electrical machine according to the first embodiment of the present application.

[0014] Figure 4 The drawings show a bobbin of a rotating electrical machine according to Embodiment 1 of the present application, wherein (A) is a perspective view, (B) is a plan view, and (C) is a side view.

[0015] Figure 5 It is a perspective view and a partially enlarged view showing a terminal block of the rotating electrical machine according to the first embodiment of the present application.

[0016] Figure 6 It is a perspective view showing a manufacturing process of the armature of the rotating electrical machine according to the first embodiment of the present application.

[0017] Figure 7 It is a perspective view showing a manufacturing process of the armature of the rotating electrical machine according to the first embodiment of the present application.

[0018] Figure 8 It is a schematic diagram showing a manufacturing process of the armature of the rotating electrical machine according to the first embodiment of the present application.

[0019] Fig. 9 It is a perspective view showing a manufacturing process of the armature of the rotating electrical machine according to the first embodiment of the present application.

[0020] Fig.10 It is a schematic diagram showing a method of fixing a terminal block of a rotating electrical machine according to the first embodiment of the present application.

[0021] Fig.11 It is a perspective view showing a terminal of the rotating electrical machine according to the first embodiment of the present application.

[0022] Fig.12 It is a perspective view showing a fitting portion between a terminal block and a terminal of the rotating electrical machine according to the first embodiment of the present application.

[0023] Fig.13 It is a cross-sectional view showing a fitting portion of a terminal of the rotating electrical machine according to the first embodiment of the present application.

[0024] Fig.14 It is a cross-sectional view showing a fitting portion of a terminal of a rotating electrical machine according to a second embodiment of the present application.

[0025] Fig.15 It is a cross-sectional view showing a method of connecting a terminal block and a terminal of a rotating electrical machine according to a third embodiment of the present application.

[0026] Explanation of symbols

[0027] 100 rotating electrical machine; 201 bearing; 210 housing; 211 frame; 212 end plate; 300 armature; 310 coil; 311 bobbin; 313 slot unit; 315 main body; 316 wall; 317 retaining portion; 317a supporting wall; 317b partition wall; 318 slot; 320 terminal block; 321 power distribution portion for coil; 322 protrusion for power supply; 323 protrusion; 324 anti-slip portion; 330 core; 331 pole tooth; 332 yoke; 340 terminal; 341 opening; 341a circumferential beam; 341b circumferential beam; 342 radial protrusion; 343 power supply side connection portion; 350 fitting portion; 360 melting portion; 400 rotor; 401 rotating shaft; 402 rotor core; 403 permanent magnet; 500 adhesive; 501 nozzle. DETAILED DESCRIPTION

[0028] Implementation Method 1

[0029] Figure 1 Schematic diagram showing a cross section of a rotating electrical machine according to Embodiment 1 of the present application. Figure 1In the figure, the rotating electric machine 100 includes: a housing 210, which is composed of a cylindrical frame 211 with a bottom and an end plate 212, wherein the end plate 212 blocks the opening of the frame 211; an armature 300, which is fixed to the cylindrical portion of the frame 211 in an embedded state; and a rotor 400, which is rotatably supported by the bottom of the frame 211 and the end plate 212 via a bearing 201, and is arranged on the inner circumferential side of the armature 300.

[0030] The armature 300 is composed of a plurality of coils 310 , a terminal block 320 and an iron core 330 , wherein the plurality of coils 310 generate magnetic flux, the terminal block 320 distributes current to the plurality of coils 310 , the iron core 330 allows the magnetic flux to flow, and the coils 310 and the iron core 330 are electrically insulated by a bobbin 311 .

[0031] The rotor 400 is, for example, a permanent magnet type rotor, and includes: a cylindrical rotor core 402, the rotor core 402 having a rotating shaft 401 inserted at the axial center position; and permanent magnets 403, which are embedded in the outer peripheral surface side of the rotor core 402 and arranged in the circumferential direction at a predetermined interval to form magnetic poles. In addition, the rotor 400 is not limited to the above-mentioned permanent magnet type rotor, and a so-called cage rotor, a winding rotor, etc. may also be used.

[0032] Figure 2 FIG. 2 is a perspective view showing the entire armature 300 of the rotating electrical machine according to Embodiment 1. Figure 2 As shown, the armature 300 is formed into a ring shape by arranging the iron cores 330 and the coils 310 divided in the circumferential direction at equal intervals, and the coils 310 are formed of conductor wires wound around the iron cores 330. In addition, a terminal 340 is held on the outer peripheral surface of the frame 211 corresponding to the housing of the armature 300 near the terminal block 320, and power is supplied to the terminal block 320 from the outside.

[0033] In addition, for each of the three phases, a terminal block 320 is provided, a total of three terminals, and connected to the coil 310 of each phase. Figure 2 As shown, three terminals 340 are provided corresponding to the connection to the three terminal blocks 320 .

[0034] exist Figure 3 A three-dimensional view of the coil 310 is shown in FIG. Figure 3As shown, it has: an iron core 330, which includes pole teeth 331 and a yoke 332, and is constructed by stacking a plurality of steel plates, wherein the yoke 332 connects the pole teeth 331 to the pole teeth 331 on the outer diameter side in the circumferential direction; and a coil 310, which is constructed by inserting a winding tube 311 formed of an insulating material at both ends of the iron core 330 and winding a conductor wire with an insulating coating. The above-mentioned conductor wire can be a copper wire or an aluminum wire. The iron core 330 is divided into the same number as the pole teeth 331 in the circumferential direction by the yoke 332. In embodiment 1, the iron core divided in the circumferential direction is used, but it can also be an integrated iron core formed by connecting all the iron cores 330 by the yoke 332, or it can be an iron core that can be connected to the yoke 332 by a thin wall and can be unfolded in a straight line.

[0035] like Figure 3 As shown, one pole tooth 331 touches the sheet-shaped slot unit 313 that electrically isolates the coil 310 from the iron core 330, and the insulation assembly is performed by inserting the winding tube 311 at both ends of the iron core 330 and fixing it, wherein the sheet-shaped slot unit 313 is made of polyphenylene sulfide resin or meta-aramid fiber. The slot unit 313 can also be fixed by sticking double-sided tape on the side of the iron core 330.

[0036] like Figure 4 As shown, the bobbin 311 includes a main body 315 on which the coil 310 is wound and a wall 316 for arranging the conductor wire at a predetermined position. On the yoke 332 side of the wall 316, there are a holding portion 317 and a container-shaped groove 318, wherein the holding portion 317 is provided with a comb-shaped support wall 317a to support the terminal block 320, and the groove 318 is used to store an adhesive for fixing the terminal block 320 to the lower part of the holding portion 317. The groove 318 is provided between the support walls 317a of the holding portion 317 along the circumferential direction of the rotating shaft 401, and is formed into a container shape by providing partition walls 317b at both ends of the circumferential direction. In addition, in the first embodiment, the holding portion 317 is arranged on the yoke 332 side, but it can also be arranged on the rotor 400 side in consideration of the installation performance on the vehicle.

[0037] exist Figure 5 FIG. 2 shows an overall view of the wiring board 320 of the first embodiment and a partial enlarged view thereof. The wiring board 320 is formed by punching a strip-shaped guide member by a stamping method. The wiring board 320 is held by the holding portion 317 of the bobbin 311 as shown in FIG. Figure 5As shown in the figure, the guide member formed into a belt shape is partially opened in an annular shape. In the terminal block 320, relative to the main body portion formed into an annular shape by the above-mentioned belt-shaped guide member, a coil power distribution portion 321 connected to the conductor wire of the coil 310 and a power supply protrusion 322 for supplying power are also provided at the end of the upper side in the figure. The above-mentioned coil power distribution portion 321 and the power supply protrusion 322 are protrusions extending from the main body of the terminal block 320 toward the axial direction of the rotating shaft 401. The power supply protrusion 322 of this embodiment 1 is adjacently provided with two protrusions as shown in the figure, and the two protrusions are provided in a concave shape. In addition, the front end portion of each protrusion is chamfered, so as to facilitate the insertion toward the opening portion 341 provided in the terminal 340 described later, or the clamping of the radial protrusion 342 provided between the opening portions 341.

[0038] On the other hand, the main body of the terminal block 320 is provided with a protrusion 323 engaged with the bobbin 311 on the opposite side of the shaft 401 in the axial direction. The protrusion 323 is provided with a retaining portion 324 extending toward both sides of the terminal block 320 in the longitudinal direction.

[0039] use Figures 6 to 9 The manufacturing process of the armature 300 will be described. Figure 6 FIG. 2 shows a state where the core 330 having the coil 310 is arranged in a circular ring shape. The core 330 is pressed into the frame 211 and the Figure 7 Here, in order to achieve integration, it is sufficient to use a method such as welding or bonding the iron cores 330 to each other.

[0040] After the core 330 is integrated, Figure 8 The adhesive 500 is injected into the container-shaped groove 318 of the bobbin 311 using the nozzle 501. Fig. 9 As shown, the terminal plate 320 is rolled into a ring shape, and the protrusion 323 is inserted in a manner of being immersed in the adhesive 500 stored in the groove 318. Fig.10 2 shows the state of the groove 318, the protrusion 323, and the adhesive 500 at this time. In this way, the terminal plate can be fixed corresponding to the plurality of coils arranged along the circumferential direction of the rotation shaft.

[0041] exist Fig.11 FIG. 4 shows a perspective view of the terminal 340 of the first embodiment. Fig.12 3 is a perspective view showing a state where the terminal 340 is mounted on the power supply protrusion 322 through the engaging portion 350 of the terminal 340. Fig.11 and Fig.12As shown in the figure, the terminal 340 is bent at the dotted line portion in the figure, and a power supply side connection portion 343 for connecting a power supply line from the outside is provided on a surface extending along the axial direction (axial direction of the rotating shaft 401) of the cylindrical frame 211 (not shown due to overlap) as the power supply side. In addition, a fitting portion 350 that fits with the power supply protrusion 322 of the terminal block 320 is provided on the surface extending along the radial direction of the rotating shaft 401 on the other side.

[0042] Furthermore, a slot-shaped opening 341 is provided in the fitting portion 350 that is fitted to the terminal plate 320. The opening 341 is provided to fit the power supply protrusion 322 by inserting the power supply protrusion 322 into the opening.

[0043] In addition, in the present embodiment 1, the power supply protrusion 322 adopts a structure in which two protrusions are arranged adjacent to each other, and correspondingly, the terminal 340 has two openings 341 in the shape of notches on both side ends in the width direction of the terminal 340, and a radial protrusion 342 is provided between the above-mentioned two openings 341. The radial protrusion 342 is a portion where the width of the terminal 340 is narrowed, and is a portion that protrudes and extends radially along the rotating shaft 401.

[0044] In addition, there are circumferential beam portions 341a and 341b extending circumferentially along the rotating shaft 401 in the long side direction of the opening portion 341. The circumferentially extending surface of the power supply protrusion 322 is clamped from both sides by the circumferential beam portion 341a on the radial inner side and the circumferential beam portion 341b on the radial outer side of the rotating shaft 401 to constrain the radial deviation of the terminal block 320.

[0045] In addition, in order to enable the opening portion 341 of the terminal 340 to be engaged with the power supply protrusion 322, the width between the two opening portions 341 of the terminal 340, that is, the width of the above-mentioned radial protrusion 342 is designed to be equal to the interval between the two protrusions of the power supply protrusion 322, and the width of each opening portion 341 in the short side direction and the thickness (plate thickness) of the power supply protrusion 322 are also designed to be equal.

[0046] Fig.13 is from Fig.124. A cross-sectional view of the fitting portion 350 of the terminal 340 viewed from above. As shown in the figure, the terminal 340 is mounted on the power supply protrusion 322 in a state where two protrusions arranged adjacent to each other in the circumferential direction of the rotating shaft 401 in the power supply protrusion 322 are inserted into two openings 341 formed in the radial direction of the terminal 340. According to the size relationship between the openings 341 and the power supply protrusion 322, the terminal block 320 and the terminal 340 are formed in a state where the radial protrusion 342 between the two openings 341 of the terminal 340 is clamped from both sides by the circumferential ends of the two power supply protrusions 322, and are fitted in the circumferential direction. On the other hand, in the thickness direction of the power supply protrusion 322, in the slot-shaped opening 341 of the terminal 340, the circumferential beams 341a and 341b clamp the power supply protrusion 322 from both radial sides, and are fitted in the radial direction. In this way, the terminal 340 is formed in a state where the radial and circumferential movement toward the rotating shaft 401 is restricted. That is, the terminal 340 is fixed to the power supply protrusion 322 by inserting and fitting the power supply protrusion 322 into the opening 341 of the terminal 340 .

[0047] By adopting the structure of the power supply part of the above-mentioned embodiment 1, the power supply protrusion 322 is inserted and engaged into the opening portion 341 of the terminal 340. Therefore, when the terminal 340 is assembled to the terminal board 320, the radial displacement of the rotating shaft 401 can be prevented while ensuring the assemblability. In addition, the circumferential displacement of the rotating shaft 401 can also be prevented.

[0048] In addition, in the power supply protrusion of the first embodiment, Fig.13 As shown in the figure, a gap is formed between the inserted power supply protrusion 322 and the opening 341 of the fitting portion 350 of the terminal 340. A structure is adopted in which no bonding fixation by welding or adhesive is implemented, and positioning is performed only by fitting of components. In this way, in the power supply protrusion 322, a structure is adopted in which a gap is provided between the fitting portion 350 of the terminal 340 and the power supply protrusion 322, and positioning is performed only by fitting of components. Therefore, even if a positional deviation occurs due to a deviation in the size of the components, a structure that can absorb the positional deviation can be obtained.

[0049] In the first embodiment, the structure in which two openings 341 are provided in the terminal 340 and two power supply protrusions 322 are inserted and engaged with each other is described. However, by including radial protrusions 342 that protrude and extend in the radial direction of the rotation shaft 401, the circumferential displacement of the terminal block 320 can also be prevented. Fig.13Even if the circumferential beams 341a and 341b extending in the circumferential direction are not included, the structure may be changed to the following: only the radial protrusion 342 is provided, which is a portion extending in the radial direction, and the radial protrusion 342 is clamped from both sides in the circumferential direction by the circumferential ends of the protrusions of the two power supply protrusions 322. By setting the structure as above, at least circumferential deviation can be prevented.

[0050] Implementation Method 2

[0051] In the method for connecting the power supply unit of the second embodiment, the method for connecting the power supply protrusion 322 and the terminal 340 is the same as that of the first embodiment. Figures 1 to 13 In the second embodiment, the projections and depressions of the engaging portion 350 are increased to improve the positioning accuracy and connection reliability of the engaging portion 350.

[0052] Fig.14 3 is a diagram showing a fitting portion 350 of a power supply portion according to Embodiment 2, and is a cross-sectional view schematically showing a cross section of the fitting portion 350 of the power supply protrusion 322 and the terminal 340. In Embodiment 2, as shown in FIG. Fig.14 As shown, the protrusions of the power supply protrusion 322 are changed from two in embodiment 1 to three, and the openings 341 for inserting the above-mentioned protrusions and arranged on the terminal 340 are also changed from two to three. As for the radial protrusions 342 formed between the openings 341, they are changed from one in embodiment 1 to two.

[0053] By adopting the above structure, the number of engaging portions that engage with the protrusion of the power supply protrusion 322 is increased to multiple locations through the engaging portion 350 of the terminal 340, so that positioning can be performed more accurately. In addition, since the connection area is increased, the vibration resistance of the engaging portion 350 can be enhanced, the heat influence can be dispersed, and the reliability during connection can be improved.

[0054] The power supply protrusion 322 may include not only two or three protrusions, but may include four or more protrusions to the extent that they can be connected.

[0055] Furthermore, the protrusion of the power supply protrusion 322 can be set to one. In this case, in order to clamp the protrusion of the power supply protrusion 322 from both sides to restrict the movement in the circumferential direction, the opening 341 provided in the terminal 340 can be provided with a closed opening shape instead of the notch-shaped opening shape as in the first embodiment. As a result, by providing two radial protrusions 342 extending in the radial direction of the rotating shaft 401 on both sides of the opening 341, the protrusion of the power supply protrusion 322 can be clamped from both sides to restrict the movement in the circumferential direction. In addition, by inserting and fitting the protrusion of the power supply protrusion 322 into the opening 341, circumferential beams 341a and 341b are formed on both sides of the opening 341 in the radial direction, and the movement in the radial direction is also restricted, so that the same effect as in the first embodiment can be obtained.

[0056] Implementation 3

[0057] The shape of the fitting portion 350 of the connection plate 320 and the terminal 340 in the connection method of the power supply unit of the third embodiment is similar to that of the first embodiment and the second embodiment. Figures 1 to 14 In the third embodiment, the connection portion is further heated and melted to ensure reliable connection.

[0058] Fig.15 3 is a diagram showing a method of connecting the power supply protrusion 322 and the fitting portion 350 of the terminal 340 according to the third embodiment, which is viewed along the A direction. Fig.12 . For example, by using a heating means such as a gas burner or arc welding that can provide energy over a wide range, the protrusion including the opening 341 is heated and melted, so that the protrusion of the power supply protrusion 322 protruding axially from the opening 341 of the terminal 340 is welded through the molten portion 360, thereby making it possible to achieve a more secure connection while reducing resistance, thereby reducing energy loss. Therefore, as a manufacturing method of a rotating electric machine, by applying the above-mentioned power supply connection method, the characteristics of the motor can be improved.

[0059] Furthermore, by supplying solder to the molten portion during heating and melting, the molten solder can be melted into the gap between the opening 341 of the terminal 340 and the protrusion of the power supply protrusion 322, thereby more firmly welding and fixing both. Therefore, the resistance value can be further reduced.

[0060] As described above, according to the method for connecting the power supply part of the third embodiment, the protruding part of the power supply protrusion 322 protruding axially from the fitting part 350 is heated and melted, thereby welding it. Therefore, the connection can be more firmly made by welding, and the resistance can be reduced to reduce the loss.

[0061] Furthermore, since the brazing material is supplied to the vicinity of the molten portion during heating and melting, the molten brazing material is melted into the fitting portion 350 and welded, so that the fitting portion 350 can be fixed and connected more firmly.

[0062] This application describes various illustrative embodiments and examples, but the various features, methods, and functions described in one or more embodiments are not limited to application to specific embodiments, and can be applied to the embodiments alone or in various combinations. Therefore, countless variations that are not illustrated are envisioned within the technical scope disclosed in this application specification. For example, it includes the case where at least one constituent element is deformed, added, or omitted, and it also includes the case where at least one constituent element is extracted and combined with constituent elements of other embodiments.

Claims

1. A rotating electrical machine, characterized in that: include: a terminal block having a power supply protrusion, the power supply protrusion distributing current to a plurality of coils arranged around the rotating shaft, the power supply protrusion extending in the axial direction of the rotating shaft and introducing current from the outside; as well as The terminal supplies power to the terminal block through a fitting portion, the fitting portion extending in the radial direction of the rotating shaft and fitting with the power supply protrusion of the terminal block in a clearance fit state, The fitting portion of the terminal has a radial protrusion and has slot-shaped openings opened at both ends in the circumferential direction, wherein the radial protrusion is clamped and fitted from both sides by the circumferential end portions of the rotating shaft provided with a plurality of the power supply protrusions.

2. The rotating electrical machine according to claim 1, characterized in that The terminal block is provided with a plurality of protrusions for power supply extending in the axial direction. The fitting portion of the terminal has the radial protrusion, and the radial protrusion is fitted between the plurality of power supply protrusions.

3. The rotating electrical machine according to claim 1, characterized in that The fitting portion of the terminal is provided with a plurality of radial protrusions extending in a radial direction, and the plurality of radial protrusions are fitted with the power supply protrusion extending in an axial direction of the terminal block.

4. The rotating electrical machine according to claim 2, characterized in that The fitting portion of the terminal is provided with a plurality of radial protrusions extending in a radial direction, and the plurality of radial protrusions are fitted with the power supply protrusion extending in an axial direction of the terminal block.

5. The rotating electrical machine according to any one of claims 1 to 4, characterized in that The fitting portion of the terminal includes a circumferential beam portion that is fitted so as to come into contact with a surface of the power supply protrusion portion extending in the circumferential direction.

6. The rotating electrical machine according to any one of claims 1 to 4, characterized in that The fitting portion has an opening, and the power supply protrusion of the terminal block is inserted into the opening.

7. The rotating electrical machine according to claim 5, characterized in that The fitting portion has an opening, and the power supply protrusion of the terminal block is inserted into the opening.

8. The rotating electrical machine according to claim 1, wherein: The connection plate is provided with two power supply protrusions extending in the axial direction, the fitting portion of the terminal has two openings configured in a slot shape, and the two power supply protrusions are fitted into the two openings.

9. The rotating electrical machine according to any one of claims 1 to 4, claim 7 and claim 8, characterized in that The fitting portion and the power supply protrusion are welded together.

10. The rotating electrical machine according to claim 5, characterized in that The fitting portion and the power supply protrusion are welded together.

11. The rotating electrical machine according to claim 6, characterized in that The fitting portion and the power supply protrusion are welded together.

12. The rotating electrical machine according to claim 9, characterized in that The fitting portion and the power supply protrusion are welded together by brazing material.

13. The rotating electrical machine according to claim 10 or 11, characterized in that: The fitting portion and the power supply protrusion are welded together by brazing material.

14. A method for manufacturing a rotating electrical machine, the rotating electrical machine comprising: a terminal block having a power supply protrusion, the power supply protrusion distributing current to a plurality of coils arranged around the rotating shaft, the power supply protrusion extending in the axial direction of the rotating shaft and introducing current from the outside; and a terminal, the terminal supplies power to the terminal block through an engaging portion, the engaging portion extends in the radial direction of the rotating shaft and engages with the power supply protrusion of the terminal block in a clearance fit state, The fitting portion of the terminal has a radial protrusion and a slot-shaped opening portion opened at both ends in the circumferential direction, wherein the radial protrusion is clamped and fitted from both sides by the circumferential end portion of the rotating shaft provided with a plurality of the power supply protrusions. It is characterized by comprising the following steps: A step of arranging a plurality of iron cores having the coils in a ring shape and pressing them into a frame for integration; The step of rolling the terminal plate into a ring shape and bonding the terminal plate to the container-shaped grooves of the bobbin inserted into both ends of the core; a step of connecting the terminal block and the plurality of coils; and A step of fitting the power supply protrusion of the connection plate into the fitting portion of the terminal.

15. The method for manufacturing a rotating electrical machine according to claim 14, wherein: The method includes the step of welding the fitting portion and the power supply protrusion.

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