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WO2020095711A1 - Borne de machine électrique tournante, machine électrique tournante et procédé de fabrication de machine électrique tournante - Google Patents

Borne de machine électrique tournante, machine électrique tournante et procédé de fabrication de machine électrique tournante Download PDF

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Publication number
WO2020095711A1
WO2020095711A1 PCT/JP2019/041846 JP2019041846W WO2020095711A1 WO 2020095711 A1 WO2020095711 A1 WO 2020095711A1 JP 2019041846 W JP2019041846 W JP 2019041846W WO 2020095711 A1 WO2020095711 A1 WO 2020095711A1
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WO
WIPO (PCT)
Prior art keywords
terminal
electric machine
electrode
convex shape
rotary electric
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
Application number
PCT/JP2019/041846
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English (en)
Japanese (ja)
Inventor
誠一 水谷
祐宇 諸岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DensoTrim Corp
Original Assignee
DensoTrim Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DensoTrim Corp filed Critical DensoTrim Corp
Priority to CN201980070634.5A priority Critical patent/CN112913121B/zh
Priority to JP2020555953A priority patent/JP7085016B2/ja
Publication of WO2020095711A1 publication Critical patent/WO2020095711A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors

Definitions

  • the disclosure in this specification relates to a rotary electric machine terminal, a rotary electric machine, and a method for manufacturing the rotary electric machine.
  • Patent Document 1 discloses a rotary electric machine terminal, a rotary electric machine, and a method for manufacturing the rotary electric machine.
  • Patent Document 2 discloses a through-type terminal. The description of the prior art documents listed as the prior art is incorporated by reference as a description of the technical elements in this specification.
  • One object of the disclosure is to provide a rotary electric machine terminal, a rotary electric machine, and a method for manufacturing the rotary electric machine, which are surely electrically connected.
  • One of the disclosed embodiments provides a terminal for a rotary electric machine having convex shapes (66, 266, 366, 466, 566) on both sides in the thickness direction of the terminal (65) of the plate-shaped electrode.
  • One of the disclosed embodiments is a terminal for a rotary electric machine, at least one coil end (33a) joined on a convex shape of one surface in the thickness direction of the terminal (65), and the terminal (65). ), A plurality of coil ends including at least one coil end (33a) joined on the convex shape of the other surface in the thickness direction of the rotating electric machine.
  • One of the disclosed embodiments is to form convex shapes (66, 266, 366, 466, 566) on opposite sides of the electrode terminal (65), and to form a plurality of conductors on each of the convex shapes on both sides.
  • a method for manufacturing a rotating electric machine in which wires (33a) are dispersedly arranged, conductor wires are pressed against the terminals from both sides of the terminals, and the electrodes and the two conductor wires are joined.
  • FIG. 1 shows an electric power system 10 for an internal combustion engine.
  • the electric power system 10 includes a rotary electric machine 11 for an internal combustion engine (hereinafter simply referred to as a rotary electric machine).
  • FIG. 1 shows a cross section of the rotary electric machine 11.
  • the rotating electric machine 11 is assembled to the internal combustion engine 12.
  • the internal combustion engine 12 has a body 13 and a rotating shaft 14 rotatably supported by the body 13.
  • the rotating shaft 14 rotates in conjunction with the internal combustion engine 12.
  • the rotary electric machine 11 is assembled to the body 13 and the rotary shaft 14.
  • the body 13 is a structure such as a crankcase and a transmission case of the internal combustion engine 12.
  • the rotary shaft 14 is a crank shaft of the internal combustion engine 12 or a rotary shaft that works together with the crank shaft.
  • the rotating shaft 14 rotates when the internal combustion engine 12 is operated, and drives the rotating electric machine 11 to function as a generator.
  • the rotating shaft 14 is rotationally driven by the rotating electric machine 11 when the rotating electric machine 11 functions as an electric motor.
  • the electric power system 10 has an electric circuit (CNT) 15 for causing the rotating electric machine 11 to function as a generator and / or an electric motor.
  • the electric circuit 15 includes an inverter circuit and a control device.
  • the rotary electric machine 11 and the electric circuit 15 are connected by a power line 16.
  • the power line 16 outputs generated power to the electric circuit 15 when the rotating electric machine 11 is used as a generator.
  • the electric power line 16 supplies electric power from the electric circuit 15 when the rotary electric machine 11 is used as an electric motor.
  • the rotary electric machine 11 and the electric circuit 15 are connected by a signal line 17.
  • the signal line 17 outputs a reference position signal of the rotating electric machine 11 and / or a rotational position signal of the rotating electric machine 11 to the electric circuit 15.
  • the control device uses the signal obtained by the signal line 17 to perform control so that the rotary electric machine 11 functions as an electric motor.
  • the rotary electric machine 11 is electrically connected to an electric load (LD) 18 via an electric circuit 15.
  • the load 18 includes an electric circuit and a battery.
  • An example of the application of the rotary electric machine 11 is a generator driven by an internal combustion engine 12 for vehicles.
  • the rotating electric machine 11 can be used, for example, in a saddle type vehicle.
  • An example of the application of the rotary electric machine 11 is an electric motor that supports the internal combustion engine 12 for a vehicle.
  • vehicle should be construed broadly and includes a vehicle as a vehicle, a ship, or an aircraft.
  • vehicle includes an amusement device as a non-moving body or a control simulation device.
  • the rotary electric machine 11 has a rotor 21 and a stator 31.
  • the rotor 21 is a field element.
  • the stator 31 is an armature.
  • the rotor 21 is entirely cup-shaped.
  • the rotor 21 is positioned with its open end facing the body 13.
  • the rotor 21 is a member that extends over the end surface of the stator 31 and the outside in the radial direction.
  • the rotor 21 is fixed to the end of the rotary shaft 14.
  • the rotor 21 and the rotary shaft 14 are connected via a positioning mechanism in the rotational direction such as key fitting.
  • the rotor 21 is fixed by being fastened to the rotating shaft 14 with a fixing bolt.
  • the rotor 21 rotates together with the rotating shaft 14.
  • the rotor 21 is rotatably supported so as to face the plurality of magnetic poles.
  • the rotor 21 has a cup-shaped rotor core 22.
  • the rotor core 22 is connected to the rotary shaft 14 of the internal combustion engine 12.
  • the rotor core 22 provides a yoke for a permanent magnet 23 described later.
  • the rotor core 22 is made of magnetic metal.
  • the rotor 21 has a permanent magnet 23 arranged on the inner surface of the rotor core 22.
  • the rotor 21 provides a field by the permanent magnet 23.
  • the permanent magnet 23 is fixed inside the cylinder of the rotor core 22.
  • the permanent magnet 23 has a plurality of segments. Each segment is partially cylindrical.
  • the permanent magnet 23 provides a plurality of N poles and a plurality of S poles inside thereof.
  • the permanent magnet 23 provides at least a field.
  • the permanent magnet 23 provides a field of 6 pairs of N and S poles, that is, 12 poles by 12 segments. The number of magnetic poles may be another number.
  • the stator 31 is an annular member.
  • the stator 31 is arranged between the rotor 21 and the body 13.
  • the stator 31 has an outer peripheral surface that faces the inner surface of the rotor 21 via a gap.
  • a plurality of magnetic poles are arranged on the outer peripheral surface.
  • the magnetic poles are also called teeth.
  • the stator 31 has, for example, 18 magnetic poles.
  • the number of magnetic poles may be another number. These magnetic poles are arranged so as to face the field of the rotor 21.
  • the stator 31 has an armature winding.
  • the stator 31 has multi-phase armature windings.
  • the stator 31 is fixed to the body 13.
  • the stator 31 is a three-phase multi-pole stator having a plurality of magnetic poles and a plurality of three-phase windings.
  • the stator 31 has a stator core 32.
  • the stator core 32 is arranged inside the rotor 21 by being fixed to the body 13 of the internal combustion engine 12.
  • the stator core 32 has a plurality of magnetic poles, which face the inner surface of the permanent magnet 23 and are radially outwardly formed.
  • the stator core 32 has an annular portion that connects a plurality of magnetic poles.
  • the stator core 32 is fixed to the body 13 at the annular portion.
  • the stator core 32 is formed by stacking electromagnetic steel sheets formed in a predetermined shape so as to form a plurality of magnetic poles.
  • the stator 31 has a stator coil 33 wound around a stator core 32.
  • the stator coil 33 provides the armature winding.
  • An insulator made of an insulating material is arranged between the stator core 32 and the stator coil 33.
  • the insulator is also called a bobbin.
  • a portion of the insulator is positioned adjacent to the magnetic pole to provide a flange for the bobbin.
  • a part of the insulator is arranged on both sides of the magnetic pole in the axial direction. The insulator is also exposed at the annular portion of the stator core 32.
  • the stator 31 has a neutral point 51 that includes multiple components to provide the neutral point connection.
  • a plurality of neutral point coil ends 33 a extending from the stator coil 33 are arranged so as to reach the neutral point 51.
  • the stator 31 has an output end 61 including a plurality of components for providing a connection with the power line 16.
  • a plurality of coil ends 33 a for output ends extending from the stator coil 33 are arranged so as to reach the output end 61.
  • the stator coil 33 is a multiphase winding.
  • the stator coil 33 is a three-phase winding.
  • the stator coil 33 has a plurality of phase coils 33u, 33v, 33w. Each phase coil may have a plurality of coils connected in parallel.
  • One of the plurality of phase coils 33u, 33v, 33w has coil ends 33a, 33a at both ends.
  • the stator coil 33 is formed of a double-wire conductor covered with an insulating coating.
  • One of the plurality of phase coils 33u, 33v, 33w is provided by a parallel circuit of two conductors.
  • one phase coil 33u has two conductors connected in parallel.
  • One of the plurality of phase coils 33u, 33v, 33w can be provided by a parallel circuit of an even number of conductor wires such as two, four, and six.
  • the conductor wire forming the stator coil 33 is made of aluminum or aluminum alloy. Aluminum-based metal conductor wires may provide an insulating coating by an oxide film.
  • the stator coil 33 may be provided by a plurality of parallel conductor wires.
  • the conductor wire may be made of copper or a copper alloy.
  • the insulating coating may be provided by a resin coating.
  • Stator coil 33 is star-connected.
  • the stator coil 33 has a neutral point 51 and an output end 61.
  • the neutral point 51 has a neutral point electrode 52.
  • the neutral point electrode 52 has a plurality of terminals 65. Each of these terminals 65 is connected to the two coil ends 33a.
  • the output end 61 has three output end electrodes 62, 63, 64. Each of the output end electrodes 62, 63, 64 is connected to the two coil ends 33a. One output end electrode has one terminal 65. In the figure, the terminal 65 of the output end electrode 62 is illustrated. Two coil ends 33a are connected to one terminal 65.
  • the output end 61 can be provided by a plurality of output end electrodes. The output 61 can be provided by two, three, six, etc. output electrodes.
  • the basic configuration of the neutral point electrode 52 can be incorporated by referring to Patent Document 1.
  • the neutral point electrode 52 is supported by the insulator.
  • the neutral point electrode 52 is arranged so as to position the plurality of terminals 65 on one end surface of the stator 31.
  • the plurality of terminals 65 are covered with a protective resin material after being joined to the plurality of coil ends 33a.
  • the basic configuration of the output end electrodes 62, 63, 64 can be incorporated by reference in Patent Document 2.
  • the output end electrodes 62, 63, 64 are supported by the insulator.
  • the output end electrodes 62, 63, 64 are arranged so as to penetrate the stator 31.
  • the output end electrodes 62, 63, 64 are arranged so as to position the terminal 65 on one end surface of the stator 31.
  • the output end electrodes 62, 63, 64 are connected to the power line 16 at the other end surface of the stator 31.
  • the plurality of terminals 65 of the plurality of output end electrodes 62, 63, 64 are covered with a protective resin material after being joined to the plurality of coil ends 33a.
  • the plurality of terminals 65 are described below.
  • the neutral point electrode 52 also has a similar terminal 65.
  • the neutral point electrode 52 and / or the output end electrodes 62, 63, 64 provide electrodes for a rotating electric machine.
  • the terminal 65 is also called a terminal.
  • the electrodes 62, 63, 64 are plate-shaped.
  • the vertical direction in FIG. 4 indicates the plate thickness direction of the electrodes 62, 63, 64.
  • All the electrodes 52, 62, 63, 64 are cut out from a plate-shaped base material into desired shapes.
  • the terms height, thickness, and width refer to the height direction HD, the thickness direction TD, and the width direction WD illustrated in FIG.
  • the plate thickness direction of the electrodes 52, 62, 63, 64 and the thickness direction TD of the terminal 65 coincide with each other. Note that the plate thickness direction of the electrodes 52, 62, 63, 64 and the thickness direction TD of the terminal 65 may not match.
  • the rotary electric machine terminal and the method for manufacturing the rotary electric machine include the following steps.
  • Convex shapes are formed on both sides of the terminals 65 of the electrodes 52, 62, 63, 64 facing each other.
  • the convex shape is formed by forming an electrode into a predetermined shape from a plate material as a base material and then pressing a portion to be a terminal.
  • the step of forming the convex shape is performed by flowing the material of the electrode by press working in the plate thickness direction.
  • the convex shape thus formed provides a shape for joining which is difficult to obtain only by cutting the electrode from the base material.
  • the convex shape may be formed at the same time when the electrode is cut out from the base material.
  • a plurality of conductor lines are dispersively arranged on each of the convex shapes on both sides of the electrode. Press the conductor wire from both sides of the terminal to the terminal. The electrode and the plurality of conductor wires are joined.
  • the terminal 65 has a spindle shape.
  • the terminal 65 is deformed from the quadrilateral shape to the spindle shape by the flow of the material by the press working.
  • the spindle-shaped terminal 65 provides a convex shape 66 suitable for welding with the coil end 33a on both sides in the plate thickness direction.
  • the convex shape 66 is a curved surface shape.
  • the convex shape 66 is a partial surface of a cylinder having a diameter larger than the plate thickness T of the terminal 65.
  • the convex shape 66 can be likened to a mountain.
  • the convex shape 66 has a ridge line surface 67 that defines a ridge line that passes through the top.
  • the ridge surface 67 is a top surface.
  • the ridge line surface 67 extends in the axial direction of the terminal 65.
  • the convex shape 66 is defined by the ridge surface 67, the shoulder surface 68a, and the shoulder surface 68b.
  • the convex shape 66 has both shoulder surfaces 68a and 68b that continuously extend from the ridge surface 67 to both sides in the width direction.
  • Both shoulder surfaces 68a, 68b are a pair of surfaces positioned so as to gradually descend from the ridge surface 67.
  • Both shoulder surfaces 68a, 68b can be provided by a pair of concave curved surfaces, a pair of convex curved surfaces, or a pair of flat surfaces.
  • Both shoulder surfaces 68a, 68b of this embodiment are convex curved surfaces.
  • the ridge surface 67 allows stress to be initially concentrated on a part of the coil end 33a when the terminal 65 and the coil end 33a are pressed against each other.
  • the ridge surface 67 contributes to the formation of a deformation starting point or a starting surface on the surface of the coil end 33a.
  • Both shoulder surfaces 68a, 68b facilitate a gradual deformation of the coil end 33a when the terminal 65 and the coil end 33a are pressed together. It is desirable that the deformation of the coil end 33a be continuously continued during the pressing.
  • FIG. 6 shows two coil ends 33 a connected to the terminal 65.
  • the two coil ends 33 a are positioned so as to sandwich the terminal 65.
  • the coil end 33a, the terminal 65, and the coil end 33a are sandwiched between the two welding electrodes 80 and pressed.
  • a welding current is supplied to the two welding electrodes 80 under pressure. As a result, the terminal 65 and the coil end 33a are joined.
  • the joint range between the terminal 65 and the coil end 33a extends over the joint width WJ.
  • the convex shape 66 including the ridge surface 67, the shoulder surface 68a, and the shoulder surface 68b extends over the width WP.
  • the junction width WJ is smaller than the width WP.
  • the width WJ occupies the center range of the width WP.
  • Both the shoulder surface 68a and the shoulder surface 68b extend further outward than the joint width WJ.
  • Both shoulder surfaces 68a, 68b serve to form a wide interface between the terminal 65 and the coil end 33a. As a result, the joint width WJ is stably formed.
  • the two coil ends 33a, 33a joined to one terminal 65 are separated from each other.
  • the rotary electric machine 1 is provided with the rotary electric machine terminals having the convex shapes 66 on both sides of the terminal 65 in the thickness direction, and the plurality of coil ends 33 a joined to both sides of the terminal 65.
  • the plurality of coil ends 33a include at least one coil end 33a joined onto the convex shape 66 on one surface in the thickness direction of the terminal 65. Further, the plurality of coil ends 33a include at least one coil end 33a joined onto the convex shape 66 on the other surface of the terminal 65 in the thickness direction.
  • FIG. 7 is a flow chart showing a terminal for a rotary electric machine and a manufacturing method 180 for the rotary electric machine.
  • the manufacturing method 180 includes a step 181 of preparing an electrode.
  • the electrodes 52, 62, 63, 64 are formed by cutting out a desired shape from a plate-shaped base material.
  • Step 181 provides a preparation process.
  • the manufacturing method 180 includes a step 182 of processing the terminal at the electrode.
  • convex shapes are formed on both sides of the terminals 65 of the electrodes 52, 62, 63, 64 facing each other.
  • the convex shape is formed by forming an electrode into a predetermined shape from a plate material as a base material and then pressing a portion to be a terminal.
  • the step of forming the convex shape is performed by flowing the material of the electrode by press working in the plate thickness direction.
  • the convex shape thus formed provides a shape for joining which is difficult to obtain only by cutting the electrode from the base material.
  • Step 182 provides a processing step.
  • the preparation process and the processing process can be provided by one pressing process.
  • the convex shape is formed at the same time when the electrode is cut out from the base material.
  • the preparation step and the processing step may be provided in the reverse order in which the preparation step is performed after the processing step.
  • the manufacturing method 180 includes a step 183 of placing electrodes on the rotating electric machine. At this stage, the electrodes are arranged on the stator 31. Manufacturing method 180 includes placing 184 coil ends on opposite sides of terminal 65.
  • a plurality of conductor wires coil ends 33a
  • the coil end 33a and the ridge surface 67 are positioned so as to intersect each other.
  • the coil end 33a and the ridge surface 67 are positioned so that the axial direction of the coil end 33a and the extending direction of the ridge surface 67 intersect.
  • the manufacturing method 180 includes a step 185 of joining the terminal 65 and the coil end 33a.
  • step 185 the conductor wire (coil end 33 a) is pressed against the terminal 65 from both sides of the terminal 65 by the welding electrode 80.
  • step 185 a plurality of conductor wires (coil ends 33a) are joined to one terminal 65.
  • step 185 the terminal 65 and the plurality of coil ends 33a are joined by electric resistance welding. When a plurality of coil ends 33a and 33a are joined to one terminal 65, a plurality of coil ends 33a and 33a are joined at the same time. The same amount of current flows through the plurality of coil ends 33a, 33a.
  • the manufacturing method 180 includes a step 186 of protecting the joint.
  • the joint portion is protected by, for example, a protective resin.
  • Patent Document 1 a flat plate is applied to a circular aluminum-based metal conductor wire, so the contact surface is not stable.
  • the conductor wire side of the aluminum-based metal has unevenness when the coating film is peeled off, and stable bonding cannot be obtained unless contact is made with a certain pressure.
  • there is a limit to the load that can be applied to the electrode so the pressure becomes low, the contact surface contact becomes unstable, and the bonding strength decreases.
  • the strength of the welding electrode There is also a limit to the strength of the welding electrode. For example, since the space for positioning the welding electrode at a predetermined position is limited in the manufacturing method, the welding electrode cannot be increased in size. In addition, since the welding electrode needs to use a high-conductivity material such as copper for supplying an electric current, there is a limit to the strength that can be obtained in a usable size.
  • Patent Document 2 the conventional projection shape can only be joined to one side, but when two pieces are joined to one side, the height becomes high, and as a result, the width of the rotating electric machine and the internal combustion engine increases. In addition, the amount of protective agent increases at the joint.
  • the following effects can be expected. (1) To obtain a stable contact surface contact without increasing the electrode load. (2) To increase the bonding strength, obtain a stable contact surface contact even if the terminal width is increased. (3) The above problems (1) and (2) are satisfied, and the terminal height is suppressed as in the conventional case, and the amount of the protective agent used is not increased.
  • a terminal for a rotating electric machine having a convex shape on both sides in the plate thickness direction is provided.
  • the convex shape is provided as a curved shape.
  • the curved surface shape provides a smooth curved surface over the entire width WP of the terminal 65.
  • the curved surface shape is a partial surface of a cylinder having a diameter larger than the plate thickness T of the terminal 65.
  • the rotary electric machine terminal is provided on a plate-shaped terminal electrode.
  • the terminal electrode is a terminal electrode for joining a conductor wire of aluminum-based metal.
  • a terminal for a rotary electric machine and a method for manufacturing the rotary electric machine which are suitable for a rotary electric machine mounted in a vibration environment or a corrosive environment such as a motorcycle, are provided.
  • the two coil ends 33a can be bonded to the same height at the terminal 65 with high bonding strength. High bond strength is achieved by providing a stable contact surface between the coil end 33a and the terminal 65. It is possible to reduce the terminal height and use the same amount of protective resin as that for joining one coil end.
  • the convex shape 66 is a curved surface shape. Instead, in this embodiment, the convex shape 266 has a narrow ridge surface. The convex shape 266 is provided by a polygonal shape.
  • the convex shape 266 of the terminal 65 is provided by a polyhedral shape having a ridge surface 267.
  • the ridge surface 267 has a sharpness that can be formed by press working.
  • the ridge surface 267 is a partial surface of a cylinder having a diameter equal to or larger than the plate thickness T of the terminal 65.
  • the terminal 65 has a shoulder surface 268a and a shoulder surface 268b on both sides of the ridgeline surface 267 in the width direction. Both shoulder surfaces 268a, 268b are flat surfaces that extend straight from the edge of the ridge surface 267. Both shoulder surfaces 68a, 68b in this embodiment are flat.
  • the terminal 65 can also be called a polygon, a polyhedron, a rhombus, or a parallelogram in cross section.
  • the width of the ridge surface 267 is at least smaller than the width of the shoulder surface 268a.
  • the width of the ridge surface 267 is at least smaller than the width of the shoulder surface 268b.
  • the width of the ridge surface 267 is smaller than the width of both shoulder surfaces 268a, 268b.
  • the width of each of the shoulder surfaces 268a, 268b is greater than the width of the ridge surface 267.
  • the manufacturing method 180 of FIG. 7 is also used in this embodiment and the subsequent embodiments.
  • the relatively sharp ridge surface 267 deforms the coil end 33a so as to cut into the coil end 33a on the surface of the coil end 33a.
  • Both shoulder surfaces 268a, 268b allow the mating surface to gradually expand while the two coil ends 33a, 33a are pressed toward the terminal 65. As a result, a bonding surface having a large area is stably formed.
  • This embodiment is a modification based on the preceding embodiment as a basic form.
  • the convex shapes 66, 266 are curved shapes or polyhedral shapes.
  • the convex shape 466 is provided by a stepped multi-sided shape.
  • the convex shape 366 of the terminal 65 is provided by a square protrusion having a ridge line surface 367.
  • the terminal 65 has a shoulder surface 368a and a shoulder surface 368b on both sides of the ridgeline surface 367 in the width direction. Both shoulder surfaces 368a, 368b are provided by a square concave surface.
  • the terminal 65 forms a polygon by a plurality of planes. Both shoulder surfaces 368a, 368b allow progressive deformation of the coil end 33a while the two coil ends 33a, 33a are pressed towards the terminal 65. As a result, also in this embodiment, the bonding surface having a large area is stably formed.
  • the convex shape 366 is provided by a square protrusion.
  • the convex shape 466 is provided by a curved protrusion having curved surfaces 468a, 468b.
  • the convex shape 466 of the terminal 65 is provided by a curved projection having a ridge surface 467.
  • the terminal 65 has a shoulder surface 468a and a shoulder surface 468b on both sides of the ridgeline surface 467 in the width direction. Both shoulder surfaces 468a, 468b are provided by concave curved surfaces. Both shoulder surfaces 468a, 468b allow progressive deformation of the coil end 33a while the two coil ends 33a, 33a are pressed towards the terminal 65. A sharp corner is formed at the boundary between the ridge surface 467 and both shoulder surfaces 468a and 468b. The corner portion promotes the deformation of the coil end 33a.
  • the terminal 65 has a ridge line surface 467 between the two concave curved surfaces.
  • This embodiment is a modification based on the preceding embodiment.
  • convex shapes 66, 266, 366, 466 are provided.
  • the terminal 65 has a convex shape 566 and edge plates 571 and 672.
  • the terminal 65 has convex shapes 566 on both sides in the thickness direction.
  • the convex shape 566 is defined by the ridge surface 567, the shoulder surface 568a, and the shoulder surface 568b.
  • the convex shape 566 is a partial surface of a cylinder having a diameter equal to or larger than the plate thickness T of the terminal 65.
  • the terminal 65 has edge plates 571 and 572 on both sides in the width direction of the convex shape 566.
  • the edge plates 571 and 572 are plate-shaped portions protruding from the convex shape 566 in the width direction.
  • the edge plates 571 and 572 are flat plates having a predetermined thickness.
  • the thickness of the edge plates 571 and 572 is smaller than the thickness T of the ridgeline surface 567 of the terminal 65.
  • Boundary recesses 573 and 574 are formed between the convex shape 566 and the edge plates 571 and 572.
  • the two coil ends 33a and 33a are joined from the ridge surface 567 to both shoulder surfaces 568a and 568b.
  • the two coil ends 33a, 33a are shown as a perspective view for ease of understanding.
  • the two coil ends 33a, 33a do not reach the edge plates 571, 572.
  • the edge plates 571 and 572 may function as stopper surfaces that prevent excessive deformation of the coil end 33a.
  • the bonding surface having a large area is stably formed.
  • This embodiment is a modification based on the preceding embodiment.
  • convex shapes 66, 266, 366, 466, 566 are provided.
  • the terminal 65 has a convex shape 566 and edge plates 671 and 672.
  • the terminal 65 has convex shapes 566 on both sides in the thickness direction.
  • the convex shape 566 is defined by the ridge surface 567, the shoulder surface 568a, and the shoulder surface 568b.
  • the terminal 65 has edge plates 671 and 672 on both sides in the width direction of the convex shape 566.
  • the edge plates 671 and 672 are plate-shaped portions protruding from the convex shape 566 in the width direction.
  • the edge plates 671 and 672 are plate-shaped with a trapezoidal cross section in which the thickness gradually decreases toward the outer mark in the width direction.
  • the edge plates 671 and 672 provide slopes that gradually decrease outside the convex shape 566. The slope is inclined so as to gradually move away from the ridge surface 567.
  • the thickness of the edge plates 671 and 672 is smaller than the thickness T of the ridgeline surface 567 of the terminal 65.
  • Boundary recesses 673 and 674 are formed between the convex shape 566 and the edge plates 671 and 672. Also in this embodiment, the bonding surface having a large area is stably formed.
  • This embodiment is a modification based on the preceding embodiment.
  • the plate thickness direction of the neutral point electrode 52 and / or the output end electrodes 62, 63, 64 and the thickness direction TD of the terminal 65 coincide with each other.
  • the plate thickness direction of the neutral point electrode 52 and / or the output end electrodes 62, 63, 64 and the thickness direction TD of the terminal 65 may not match.
  • the electrode 750 is the neutral point electrode 52 and / or the output end electrodes 62, 63, 64.
  • FIG. 16 corresponds to FIG.
  • the electrode 750 includes the terminal 65 having the same convex shape 266 as in the second embodiment.
  • the plate thickness direction TE of the electrode 750 and the thickness T of the terminal 65 in the thickness direction TD do not match.
  • the plate thickness direction TE and the thickness T intersect each other on the projection plane at the arrow X.
  • the intersection angle is substantially 90 degrees.
  • This embodiment is a modification based on the preceding embodiment as a basic form.
  • This embodiment is also a comparative example.
  • convex shapes 66, 266, 366, 466, 566 are provided.
  • the terminal 65 still has a wide planar portion as the base material.
  • the terminal 65 does not have a convex shape.
  • the terminal 65 has wide flat surfaces 869 on both sides in the plate thickness direction.
  • the plane 869 is a plane too wide to deform the coil end 33a by the force received from the welding electrode 80.
  • the terminal 65 has a shoulder surface 869a and a shoulder surface 869b on both sides of the plane 869 in the width direction.
  • the flat surface 869 wider than the shoulder surface 869a or the shoulder surface 869b requires excessive pressing force.
  • FIG. 20 shows the positional relationship between the terminal 65 and the two coil ends 33a.
  • the two coil ends 33a are positioned at the same height in the height direction of the terminal 65.
  • the two welding electrodes 80 press the two coil ends 33 a from both sides of the terminal 65 toward the terminal 65.
  • the two welding electrodes 80 press the two coil ends 33a toward the terminals 65.
  • the two coil ends 33a positioned at the same height position allow the strong force to act on the terminal 65 by positioning the terminal 65 between them.
  • the two welding electrodes 80 require an excessive pressing force to press the two coil ends 33a.
  • the disclosures in this specification and the drawings are not limited to the illustrated embodiments.
  • the disclosure encompasses the illustrated embodiments and variations on them based on them.
  • the disclosure is not limited to the combination of parts and / or elements shown in the embodiments.
  • the disclosure can be implemented in various combinations.
  • the disclosure may have additional parts that may be added to the embodiments.
  • the disclosure includes omissions of parts and / or elements of the embodiments.
  • the disclosure includes replacements or combinations of parts and / or elements between one embodiment and another.
  • the disclosed technical scope is not limited to the description of the embodiments. It is to be understood that some technical scopes disclosed are shown by the description of the claims and further include meanings equivalent to the description of the claims and all modifications within the scope.
  • the rotating electric machine is joined on at least one coil end 33a joined to one convex shape in the thickness direction of the terminal 65 and on the other convex shape in the thickness direction of the terminal 65.
  • one surface of the terminal 65 may include one or more coil ends 33a.
  • the other surface of the terminal 65 may include one or more coil ends 33a.
  • the terminal 65 may be joined to, for example, two or more coil ends 33a on one side and to two or more coil ends 33a on the other side. Further, the terminal 65 may be joined to the odd-numbered coil ends 33a on one side and to the even-numbered coil ends 33a on the other side, for example. In either case, one terminal 65 is joined to the coil ends 33a on both sides.
  • the stator coil 33 is provided by star connection.
  • the stator coil 33 may be provided by a delta connection.
  • the stator coil 33 is connected only by the output end electrodes 62, 63, 64.
  • two, four, six, eight, ten, etc. conductor wires (coil ends 33a) are joined to both surfaces of one terminal 65.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

L'invention concerne une machine électrique tournante comprenant une électrode en forme de plaque. L'électrode en forme de plaque comprend une borne de machine électrique tournante ayant une forme convexe sur ses deux côtés dans une direction d'épaisseur de plaque. La borne est destinée à être reliée à un fil métallique à base d'aluminium, devant être joint à un fil métallique à base d'aluminium. Le procédé de fabrication d'une machine électrique tournante comprend une pluralité d'étapes. La pluralité d'étapes comprend une étape de formation d'une forme convexe sur les deux côtés mutuellement opposés d'une borne d'électrode. La pluralité d'étapes comprend une étape consistant à agencer une pluralité de fils conducteurs d'une manière dispersée sur chaque forme convexe sur les deux côtés. La pluralité d'étapes comprend une étape consistant à presser les fils conducteurs contre la borne depuis les deux côtés de la borne. La pluralité d'étapes comprend une étape d'assemblage de l'électrode à la pluralité de fils conducteurs.
PCT/JP2019/041846 2018-11-07 2019-10-25 Borne de machine électrique tournante, machine électrique tournante et procédé de fabrication de machine électrique tournante Ceased WO2020095711A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980070634.5A CN112913121B (zh) 2018-11-07 2019-10-25 旋转电机用端子、旋转电机以及旋转电机的制造方法
JP2020555953A JP7085016B2 (ja) 2018-11-07 2019-10-25 回転電機用端子、回転電機、および回転電機の製造方法

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JP2018-209986 2018-11-07
JP2018209986 2018-11-07

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WO2020095711A1 true WO2020095711A1 (fr) 2020-05-14

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PCT/JP2019/041846 Ceased WO2020095711A1 (fr) 2018-11-07 2019-10-25 Borne de machine électrique tournante, machine électrique tournante et procédé de fabrication de machine électrique tournante

Country Status (3)

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JP (1) JP7085016B2 (fr)
CN (1) CN112913121B (fr)
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111032Y1 (fr) * 1970-03-24 1976-03-25
WO2017154466A1 (fr) * 2016-03-10 2017-09-14 デンソートリム株式会社 Machine dynamo-électrique
WO2018105596A1 (fr) * 2016-12-06 2018-06-14 デンソートリム株式会社 Machine dynamoélectrique de moteur à combustion interne, et stator correspondant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06343236A (ja) * 1993-05-28 1994-12-13 Matsushita Electric Ind Co Ltd ブラシレスモータ
JP4722588B2 (ja) * 2005-06-30 2011-07-13 本田技研工業株式会社 回転電機のステータおよびその製造方法
JP6629078B2 (ja) * 2016-01-15 2020-01-15 株式会社ミツバ 減速機構付きモータ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111032Y1 (fr) * 1970-03-24 1976-03-25
WO2017154466A1 (fr) * 2016-03-10 2017-09-14 デンソートリム株式会社 Machine dynamo-électrique
WO2018105596A1 (fr) * 2016-12-06 2018-06-14 デンソートリム株式会社 Machine dynamoélectrique de moteur à combustion interne, et stator correspondant

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CN112913121B (zh) 2024-04-30
JP7085016B2 (ja) 2022-06-15
CN112913121A (zh) 2021-06-04
JPWO2020095711A1 (ja) 2021-10-07

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