WO2015049874A1 - Section de connexion électrique, moteur, appareil électrique, procédé de fabrication de section de connexion électrique, procédé de fabrication de moteur et procédé de fabrication d'appareil électrique - Google Patents

Section de connexion électrique, moteur, appareil électrique, procédé de fabrication de section de connexion électrique, procédé de fabrication de moteur et procédé de fabrication d'appareil électrique Download PDF

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Publication number
WO2015049874A1
WO2015049874A1 PCT/JP2014/005045 JP2014005045W WO2015049874A1 WO 2015049874 A1 WO2015049874 A1 WO 2015049874A1 JP 2014005045 W JP2014005045 W JP 2014005045W WO 2015049874 A1 WO2015049874 A1 WO 2015049874A1
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WIPO (PCT)
Prior art keywords
terminal
electrical connection
conductor
aluminum
manufacturing
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Application number
PCT/JP2014/005045
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English (en)
Japanese (ja)
Inventor
近藤　憲司
暢謙 森田
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2015049874A1 publication Critical patent/WO2015049874A1/fr

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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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/187—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping combined with soldering or 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
    • 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
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0056—Manufacturing winding connections
    • H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • 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
    • H01R4/029—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
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H01R4/625—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
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact 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
    • 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
    • H01R43/0228—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 without preliminary removing of insulation before soldering or welding

Definitions

  • the present invention relates to an electrical connection portion using an aluminum wire, a motor, an electrical device, a manufacturing method of the electrical connection portion, a manufacturing method of the motor, and a manufacturing method of the electrical device.
  • solder joints can provide sufficient performance for the reliability of the joint, on the other hand, of course, economic costs related to soldering are required, and it goes without saying that this impedes management economics.
  • FIG. 7 is a schematic view showing an example of a conventional ultrasonic welding method.
  • the method of welding the aluminum electric wire 6 and the terminal 93 using an ultrasonic wave, and comprising an electrical connection part is shown.
  • this conventional method first, an aluminum electric wire 6 in which an aluminum conductor 1 is covered with an insulating film 2 is connected to a terminal 93 and is sandwiched between a chip 4 and an anvil 5. And the aluminum electric wire 6 is pressurized with the chip
  • the terminal 3 and the aluminum wire 6 are ultrasonically welded in this way to form the electrical connection portion 90.
  • the insulating coating is more easily removed by plating the adherend for ultrasonic welding of the electric wires to increase the surface hardness of the adherend. It describes the technology to make it easier to perform and to stabilize and join during ultrasonic welding.
  • Patent Document 3 describes a technique relating to ultrasonic bonding of a core wire made of a plurality of strands and a twisted wire made of a thermoplastic insulating film covering them.
  • the shape of the jig that fixes the stranded wire during ultrasonic welding is studied to make the stranded wire difficult to move, thereby stabilizing the joining during ultrasonic welding.
  • the aluminum electric wire when the aluminum electric wire is a thin wire, the aluminum electric wire may be broken when the insulating film is peeled off, which is a further problem.
  • the method of ultrasonic welding the aluminum electric wire and the terminal while leaving the insulating coating of the aluminum electric wire easily causes variations in the quality of the joined state due to the influence of the insulating coating. For this reason, it is widely known that such a construction method has a high degree of difficulty because there are few successful examples in which the reliability can be stably maintained.
  • Patent Document 1 The technique described in Patent Document 1 is intended for copper wires and does not consider low-strength aluminum wires. For this reason, it has not been verified about the joining of aluminum electric wires.
  • the strength is locally reduced, or by locally damaging the insulating coating, ultrasonic welding becomes local welding, The strength is low. For this reason, there is a possibility of bonding with low reliability.
  • adding the process of scratching the insulating coating itself has a problem that it takes extra work steps and lowers productivity.
  • Patent Document 2 The technique described in Patent Document 2 is based on the premise that a copper wire is ultrasonically welded to an insulating substrate, and no consideration is given to joining an aluminum wire to a terminal. In addition, there is a need for plating on the terminals, which newly introduces a problem from the management aspect that the material cost increases.
  • Patent Document 3 is based on the premise that the core wire is a copper wire and the insulating coating is a thermoplastic resin, and ultrasonic bonding of a low-strength aluminum electric wire has not been verified.
  • the electrical connection portion 90 formed by the conventional ultrasonic welding method shown in FIG. 7 has a problem that the bonding strength of the aluminum wire neck portion 8 in FIG. 7 is lowered.
  • the electrical connection part of the present invention is an electrical connection part that includes an insulating conductor in which an aluminum conductor part is covered with an insulating film and a terminal, and the conductor part is electrically connected to the terminal.
  • This terminal includes a first terminal portion and a second terminal portion.
  • the electrical connection portion includes a conductive portion in which the conductor portion is electrically connected to the first terminal portion and the second terminal portion, and the conductor portion is connected to the first terminal portion and the second terminal portion via an insulating film.
  • a non-conducting portion in contact with the two terminal portions.
  • this electrical connection part is the structure in which the 1st terminal part and the 2nd terminal part pinch
  • the motor of the present invention is a motor including the electrical connection portion.
  • the electrical device of the present invention is an electrical device including the electrical connection part.
  • the method for manufacturing an electrical connection portion of the present invention is a method for manufacturing an electrical connection portion that includes an insulating conductor in which an aluminum conductor portion is covered with an insulating film and a terminal, and electrically connects the conductor portion to the terminal. .
  • an insulated conductor is sandwiched between a first terminal portion and a second terminal portion formed by bending a terminal.
  • the chip is lowered and the terminal is pushed to fix the insulated conductor to the terminal.
  • the manufacturing method of the electrical connection part which pressurizes, vibrating a chip
  • the motor manufacturing method of the present invention is a motor manufacturing method including the method for manufacturing the electrical connection portion.
  • the method for manufacturing an electric device according to the present invention is a method for manufacturing an electric device including the method for manufacturing the electrical connection portion.
  • the joining portion is provided without providing a step of peeling the insulating film. It is possible to easily provide an electric device having a highly reliable electrical connection portion with high strength and low cost.
  • FIG. 1 is a diagram showing ultrasonic welding of an aluminum electric wire and a terminal in Embodiment 1 of the present invention.
  • FIG. 2 is a diagram showing an outline of a process of ultrasonic welding of the aluminum electric wire and the terminal in the first embodiment of the present invention.
  • FIG. 3A is a diagram showing a bonding strength test method according to the present invention.
  • FIG. 3B is a diagram illustrating a bonding strength test method in a comparative example.
  • FIG. 4 is an assembled perspective view of the motor according to Embodiment 2 of the present invention.
  • FIG. 5 is a cross-sectional view of a compressor using the motor of the present invention as an example of an electric device according to Embodiment 2 of the present invention.
  • FIG. 6 is a cross-sectional view of a blower using the motor of the present invention as another example of the electric apparatus according to Embodiment 2 of the present invention.
  • FIG. 7 is a diagram showing ultrasonic welding of a conventional aluminum wire and
  • FIG. 1 is a configuration diagram of an electrical connection portion in the embodiment of the present invention.
  • the electrical connection portion 10 is configured by electrically connecting the aluminum wire 6 and the terminal 3 by ultrasonic welding.
  • an example of an insulated conductor in which a conductor portion made of an aluminum wire is covered with an insulating coating is given as the aluminum electric wire 6. That is, the aluminum electric wire 6 is formed by covering the aluminum conductor 1 as a conductor portion with the insulating coating 2.
  • the aluminum conductor 1 may contain a trace amount of impurities.
  • the terminal 3 is the structure containing the 1st terminal part 31 and the 2nd terminal part 32, as shown in FIG. 1, and the material of the terminal 3 is copper or a copper alloy.
  • the electrical connection portion 10 is formed by ultrasonic welding with the aluminum wire 6 sandwiched between the first terminal portion 31 and the second terminal portion 32 of the terminal 3. Yes.
  • a tip 4 and an anvil 5 facing the tip 4 are used.
  • the anvil 5 is a table on which a member (workpiece) to be welded is placed.
  • the chip 4 is driven by the drive unit 20 and vibrates with ultrasonic waves.
  • the tip 4 is vibrated by the drive unit 20 and the vibration is transmitted to the terminal 3 and the aluminum wire 6, so that the terminal 3 and the aluminum wire 6 are ultrasonically welded.
  • the terminal 4 and the aluminum wire 6 are sandwiched and fixed by the chip 4 and the anvil 5. Pressure is applied to the terminal 3 by the chip 4, and the aluminum electric wire 6 is fixed in a state of being caulked between the first terminal portion 31 and the second terminal portion 32. Thereafter, the terminal 4 is further pressurized by the chip 4 while the chip 4 is vibrated by the driving unit 20. By performing such treatment, the insulating coating 2 in the portion where the terminal 3 and the aluminum wire 6 are in contact is removed physically or by frictional heat. Furthermore, by continuing to apply vibration and pressure by the tip 4, ultrasonic welding is performed with the terminal 3 and the aluminum conductor 1 in metal contact.
  • the aluminum electric wire 6 terminal joint 9 in which the aluminum electric wire 6 is joined to the terminal 3 and is also electrically connected can be obtained in this way.
  • the aluminum wire-terminal joint 9 is a surface that is ultrasonically welded in a state where the terminal 3 and the aluminum conductor 1 in the vicinity of the portion surrounded by the dashed ellipse are in metal contact.
  • the electrical connecting portion 10 includes an aluminum wire crimping portion 7 in addition to the above-described aluminum wire-terminal joint portion 9.
  • the aluminum wire-terminal junction 9 is a conduction portion where the aluminum conductor 1 is electrically connected to the first terminal portion 31 and the second terminal portion 32.
  • the aluminum wire crimping portion 7 is a non-conducting state in which the aluminum conductor 1 is only in contact with the first terminal portion 31 and the second terminal portion 32 through the insulating coating 2 and is not electrically connected. Part.
  • the width of the terminal 3 (the direction in which the aluminum conductor 1 extends) is wider than the width of the chip 4, in the vicinity of the center where the first terminal portion 31 and the chip 4 are in contact with each other. Is sufficiently welded to form the aluminum wire-terminal joint 9 which is a conducting portion.
  • the aluminum wire crimping portion 7 which is a non-conduction portion is formed.
  • the present embodiment is configured such that the non-conductive portion is disposed on both sides adjacent to the conductive portion. In the present embodiment, such a conducting part and a non-conducting part are sandwiched between the first terminal part 31 and the second terminal part 32.
  • compression-bonding part 7 is a surface where the aluminum electric wire 6 and the terminal 3 vicinity of the site
  • the aluminum wire clamped by the 1st terminal part 31 and the 2nd terminal part 32 with respect to the cross-sectional shape of the aluminum wire 6 of the prewire part which protrudes from the electrical connection part 10 6 has a cross-sectional shape in which the portions in contact with the first terminal portion 31 and the second terminal portion 32 at the conductive portion and the non-passing portion are deformed by pressure bonding.
  • the bonding strength between the aluminum electric wire 6 and the terminal 3 is the aluminum electric wire neck portion 8 (note that the aluminum electric wire neck portion 8 is in the vicinity of the portion surrounded by a broken circle in the drawing. There is a tendency to become lower depending on the strength.
  • the present embodiment is configured such that the aluminum wire-terminal joint portion 9 and the aluminum wire crimping portion 7 are sandwiched between the first terminal portion 31 and the second terminal portion 32.
  • the aluminum wire neck portion 8 is reinforced by the aluminum wire crimping portion 7.
  • the aluminum electric wire 6 and the terminal 3 are configured so that the aluminum electric wire neck portion 8 is not exposed and is covered with the first terminal portion 31 and the second terminal portion 32.
  • the joint strength has been dramatically improved.
  • FIG. 2 is a diagram showing an outline of each step of the manufacturing method of the electrical connection unit 10 according to the first embodiment of the present invention.
  • an aluminum electric wire 6 is an electric wire having a conductor diameter of 0.29 mm, in which an electric aluminum wire is an aluminum conductor 1 and an insulating coating 2 made of urethane resin is provided.
  • the terminal 3a corresponds to the terminal 3 in FIG. 1, and is formed by bending a plate body made of phosphor bronze and having a thickness of 0.5 mm into a dogleg shape. That is, the terminal 3 a is a plate body having a bent portion 3 b at a substantially central portion, and one end side of the bent portion 3 b is the first terminal portion 31, and the other end side is the second terminal portion 32.
  • a work to be welded is a terminal-aluminum electric wire in which the aluminum electric wire 6 is simply sandwiched between the first terminal portion 31 and the second terminal portion 32 of the terminal 3a.
  • a workpiece 10a is prepared.
  • a workpiece 10a which is a terminal-aluminum wire before welding is set on the anvil 5, and the aluminum wire 6 is disposed between the terminals 3a.
  • the terminal 3 a is fixed by the chip 4 facing the anvil 5.
  • the chip 4 is formed immediately above the aluminum wire 6 as viewed from the direction in which the aluminum wire 6 extends as shown in FIG. 2, and the terminal 3a as viewed from the direction orthogonal to the extension as shown in FIG. Arrange it so that it is near the center (terminal-aluminum wire setting process).
  • step B shown in FIG. 2 the chip 4 is lowered, the terminal 3a is crushed, and the aluminum wire 6 is crimped together with the terminal 3a (terminal-aluminum wire pressurizing step).
  • the aluminum electric wire 6 is fixed to the terminal 3a, and the vibration applied by the chip 4 in the next process is efficiently propagated to the aluminum electric wire 6 via the terminal 3a, so that the terminal 3a and the aluminum electric wire 6 are stabilized. It becomes possible to join to.
  • step C shown in FIG. 2 the terminal 3a is pressurized while vibrating the chip 4 (terminal-aluminum wire ultrasonic welding step). It is removed by frictional heat with 3a. Further, by pressurizing the terminal 3a while applying ultrasonic vibration, the exposed aluminum conductor 1 and the terminal 3a are removed by removing the insulating coating 2, and the aluminum wire-terminal joint 9 Form. Thereby, the electrical connection part 10 which electrically connected the aluminum conductor 1 to the terminal 3a is comprised.
  • Table 1 shows the result of comparing the bonding strength between the aluminum wire 6 and the terminal 3 by the method of the present invention and the method of the comparative example which is a conventional technique.
  • the electrical connection portion having the conventional configuration shown in FIG. 7 was used. 3A and 3B, the terminal 3a is fixed in the present invention and the terminal 93 is fixed in the comparative example, and the end portion of the aluminum wire 6 after bonding is connected to the terminals 3a and 93. Then, the strength at the time when the wire was pulled in the vertical direction (in the direction of the arrow) at a speed of 50 mm / min and reached the fracture was compared as the joint strength.
  • the bonding strength is approximately three times as large as the conventional bonding strength of 2.5 N, and the bonding strength is approximately equal to the electric wire strength of 7.5 N, which is the strength of only the electric wire. 0.0N could be obtained.
  • the ultrasonic bonding according to the method of the present invention it is possible to realize an electric connection portion of bonding with high bonding strength and high bonding reliability.
  • the frequency, amplitude, pressure, etc. of the ultrasonic vibration of the tip 4 are adjusted, and the aluminum wire neck portion 8 after joining is adjusted. May be thin. Even if such a case occurs, since the non-conductive portion of the aluminum wire crimping portion 7 that does not contribute to the electrical continuity of the ultrasonic bonding between the terminal 3a and the aluminum wire 6 is configured, the disconnection is prevented. The effect of distributing the inviting load is also exhibited.
  • the aluminum wire crimping portion 7 can increase the bonding strength between the aluminum wire 6 and the terminal 3 after ultrasonic bonding. Therefore, the joint strength of the electrical connection portion of the present invention can be increased to the same level as the strength of the aluminum electric wire itself.
  • the material of the terminal 3 is a material having a melting point lower than that of aluminum such as tin plating, peeling occurs at the interface between the plating layer and the base material of the terminal 3 during ultrasonic welding, and the bonding strength reliability decreases. . Further, when the terminal 3 is made of a soft material, it is difficult to peel off the insulating coating 2 of the aluminum wire 6 due to deformation of the terminal 3 during ultrasonic welding.
  • the terminal 3 is made of copper or a copper alloy and has a higher melting point and higher hardness than aluminum. Therefore, the insulating coating 2 of the aluminum electric wire 6 can be easily formed during ultrasonic welding. Can be removed. Moreover, since aluminum, copper, and a copper alloy can be easily alloyed, the aluminum electric wire 6 and the terminal 3 can be bonded at low cost and with high reliability.
  • the electrical connection portion and the manufacturing method of the electrical connection portion according to the present invention are in a state in which the aluminum wire is sandwiched between the terminals when ultrasonically welding the aluminum wire covered with the insulating film and the terminal. And then ultrasonic welding is performed. For this reason, according to the electrical connection part and the manufacturing method of the electrical connection part of the present invention, there is no need to provide a step of peeling off the insulating coating, and further, the electrical connection part is improved in strength by increasing the strength of the joint part. It is possible to easily provide an electric device having a low cost.
  • FIG. 4 is an assembly perspective view of a motor using the electrical connection portion according to Embodiment 2 of the present invention.
  • FIG. 5 is a cross-sectional view of a compressor using a motor according to Embodiment 2 of the present invention.
  • FIG. 6 is a cross-sectional view of a blower using a motor according to Embodiment 2 of the present invention.
  • the motor 60 includes an electrical connection portion 10 in which the aluminum wire 6 and the terminal 3 described in the first embodiment are joined by ultrasonic welding.
  • the motor 60 includes a rotor 64 and a stator 62A that is a connected portion.
  • the rotor 64 has a rotor core 64A attached to the shaft 64B.
  • the rotor 64 is rotatably attached by a pair of bearings 64C.
  • the stator 62A has a stator core 62B.
  • a coil 62C through which a drive current for driving the motor 60 flows is wound around the stator core 62B.
  • a drive current is supplied to the coil 62 ⁇ / b> C via the electrical connection unit 10.
  • the motor in the present embodiment is used for an electric device together with a driven part driven by the motor.
  • FIG. 5 shows a specific example in which the motor is used in a compressor.
  • FIG. 6 shows a specific example in which the motor is used as a blower.
  • the compressor 70 that is an electrical device includes a motor 60 that includes the electrical connection unit 10, and a compression unit 72 that is a driven unit that is driven by the motor 60.
  • the blower 74 that is an electrical device includes a motor 60 that includes the electrical connection unit 10 and a blade 76 that is a driven unit that is driven by the motor 60.
  • the field of application of the electrical connection part and the method of manufacturing the electrical connection part according to the present invention is used for an electric device using an aluminum electric wire, and can be particularly preferably used for a motor that is large in vibration and desired to be reduced in weight.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

La présente invention concerne une section de connexion électrique, comprenant une borne et un conducteur isolé dans lequel une section conducteur en aluminium est recouverte d'un film isolant, la section conducteur étant connectée électriquement à la borne. La borne est pourvue d'une première section de borne et d'une seconde section de borne. La section de connexion électrique comprend également : une section de conduction au niveau de laquelle la section conducteur est électriquement connectée à la première section de borne et à la seconde section de borne ; et une section de non-conduction au niveau de laquelle la section conducteur vient en contact avec la première section de borne et la seconde section de borne, avec le film isolant entre elles. De même, la section de connexion électrique est conçue de manière à ce que la première section de borne et la seconde section de borne enserrent la section de conduction et la section de non-conduction.
PCT/JP2014/005045 2013-10-04 2014-10-03 Section de connexion électrique, moteur, appareil électrique, procédé de fabrication de section de connexion électrique, procédé de fabrication de moteur et procédé de fabrication d'appareil électrique WO2015049874A1 (fr)

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JP2013208742 2013-10-04
JP2013-208742 2013-10-04

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WO2015049874A1 true WO2015049874A1 (fr) 2015-04-09

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