Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
  • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R39/00—Rotary current collectors, distributors or interrupters
  • H01R39/02—Details for dynamo electric machines
  • H01R39/32—Connections of conductor to commutator segment
• • 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
  • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
  • H02K13/04—Connections between commutator segments and windings

Definitions

• the present invention relates to an armature for connecting an armature coil of a rotating electric machine such as a starter motor to a segment of a commutator by ultrasonic welding. It relates to the connection method of the coil
• FIG. 1 is a cross-sectional view showing an apparatus for implementing a conventional method of connecting an armature coil for a rotating machine. This type of conventional method will be described with reference to FIG.
• (1) is the shaft of the star motor.
• ( 2 ) is an amateur core fitted on this shaft
• (3) is an armature coil wound in a slot (not shown) provided in this amateur core, and (3a) is an armature coil.
• (4) is a commutator to which the outlet (3a) of this armature coil is connected, and this commutator ( 4 ) forms a sliding surface of a bush ( 5 ) and a brush (not shown) to be fitted to the shaft (1). It is composed of a resin mold material ( 6 ) in which a plurality of segments (h) arranged in the same direction of the shaft (l) are integrally molded. (6a :) and (6b) are configured to firmly hold the fixing of the above-mentioned mold material (segment at the end of the material (e)).
• ( 8 ) is an ultrasonic welding device, which is composed of an ultrasonic power generator ( 9 ), a coil (a magnetostrictive element, a horn ⁇ , and a chip).
• the outlet (3a) of the armature coil located on the end of the segment (7), receives the ultrasonic vibration generated by the ultrasonic welding device ( 8 ). 1 As shown in the figure, the pressure in the B direction and the vibration in the Q direction are applied via the tip ⁇ as indicated by the arrow, and the ultrasonic vibration causes the coil outlet (3a) And the segment (7) are fixed.
• the ultrasonic vibration is applied to the outlet of the coil.
• Vibration is applied to the segment (7) by the frictional force applied to (3a), the sticking with the mold material ( 6 ) is released, and the mold material is removed. If the ultrasonic excitation force must be held and absorbed by the fixing force of the mold material ( 6 ), Not, Me other this, mode Lumpur de material end (6 a) of and (3 b) width size rather when the Ri, M o le de in the al (6) and SEGMENT Monument) It is necessary to increase the surface area of the mold to increase the fixing force of the segment, and to configure the groove biting shape of the segment against excessive rotation. There were drawbacks, such as the increase in commutator manufacturing costs accompanying structural complexity and increased material requirements.
• the present invention is based on the condition that the segments of a commutator integrally formed by molding materials arranged in the same direction of the shaft are fixed by rigid members.
• ultrasonic welding it is possible to provide a method of connecting an armature coil for welding an armature coil of a rotating electric machine to the above-described segment. .
• the P-outlet of the armature coil is connected to the segment by an ultrasonic welding method.
• the ultrasonic welding is performed with the rigid member fixed by a rigid member, so the cracks in the mold material due to the vibration of the segment and the fixed state of the segment Practical effect of not deteriorating
• FIG. 1 is a block diagram for explaining a conventional method
• FIG. 2 is a block diagram showing an apparatus for carrying out the present invention
• FIG. 3 is FIG.
• FIG. 4 is a cross-sectional view taken along the line I-ffl
• FIG. 4 is a side view showing the appearance of the apparatus shown in FIG.
• FIGS. 2 to 4 are block diagrams for explaining the method according to the present invention.
• a symbol 4> denotes a presser foot.
• the armature is placed on the workpiece ⁇ and the commutator is ultrasonically welded to the outlet (3a) of the coil. Is fixed to the work with the presser foot via the above tightening bolt ⁇ .
• WiPo— Fig. 2 Fig. 2 Moves back and forth in the Q direction from a force that is not pressed in the P direction, and the frictional force generated at this time is segmented.
• the vibration is suppressed by the force and the presser foot that vibrate the). Therefore, the exciting force of the coil outlet (3a) hardly escapes to the outside city and becomes the necessary frictional energy for ultrasonic welding, and the vibration of the segment (7) To prevent the harmful mold material ( 6 ) from detaching from the mold material and cracks at the mold ends (6a) and (6b). Wear .
• the present invention is not limited to the connection of an amateur coil of a rotating electric machine, but is also applicable to the connection of conductors of other electric devices.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Power Engineering (AREA)
• Motor Or Generator Current Collectors (AREA)
• Manufacture Of Motors, Generators (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=13036318

Family Applications (1)

Country Status (4)

Families Citing this family (3)

Citations (2)

Family Cites Families (2)

• 1979
  • 1979-05-07 JP JP5675579A patent/JPS55147953A/ja active Granted
• 1980
  • 1980-04-30 WO PCT/JP1980/000091 patent/WO1980002481A1/ja not_active Ceased
  • 1980-04-30 US US06/212,721 patent/US4401252A/en not_active Expired - Lifetime
  • 1980-11-17 EP EP80900791A patent/EP0028263A1/en not_active Ceased

Patent Citations (2)

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