WO2013183265A1 - 電気的接続構造部の形成方法、端子付きアルミニウム電線の製造方法、電気的接続構造部とこれを備えたモータおよびこのモータを備えた電気機器、端子付きアルミニウム電線とこれを備えたモータおよびこのモータを備えた電気機器 - Google Patents
電気的接続構造部の形成方法、端子付きアルミニウム電線の製造方法、電気的接続構造部とこれを備えたモータおよびこのモータを備えた電気機器、端子付きアルミニウム電線とこれを備えたモータおよびこのモータを備えた電気機器 Download PDFInfo
- Publication number
- WO2013183265A1 WO2013183265A1 PCT/JP2013/003439 JP2013003439W WO2013183265A1 WO 2013183265 A1 WO2013183265 A1 WO 2013183265A1 JP 2013003439 W JP2013003439 W JP 2013003439W WO 2013183265 A1 WO2013183265 A1 WO 2013183265A1
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- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- nickel
- aluminum
- electrical connection
- connection structure
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 187
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 187
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 252
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 171
- 239000000956 alloy Substances 0.000 claims abstract description 171
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 118
- 239000004020 conductor Substances 0.000 claims abstract description 99
- 239000011135 tin Substances 0.000 claims abstract description 34
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052718 tin Inorganic materials 0.000 claims abstract description 31
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052709 silver Inorganic materials 0.000 claims abstract description 22
- 239000004332 silver Substances 0.000 claims abstract description 22
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 238000007747 plating Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 7
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical group [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 6
- 239000011162 core material Substances 0.000 description 27
- 230000007797 corrosion Effects 0.000 description 21
- 238000005260 corrosion Methods 0.000 description 21
- 230000007423 decrease Effects 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910000881 Cu alloy Inorganic materials 0.000 description 5
- 229910000765 intermetallic Inorganic materials 0.000 description 5
- 238000005304 joining Methods 0.000 description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 238000002788 crimping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910002482 Cu–Ni Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- -1 copper Chemical class 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- 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
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0036—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
-
- 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
-
- 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
-
- 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
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
-
- H02K15/0062—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/02—Windings characterised by the conductor material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49174—Assembling terminal to elongated conductor
- Y10T29/49179—Assembling terminal to elongated conductor by metal fusion bonding
Definitions
- an electrical connection is formed by coating a connecting portion between a first conductor portion containing aluminum and a second conductor portion whose surface is covered with a component containing nickel with an alloy body containing tin, silver and nickel.
- the present invention relates to a connection structure portion, a motor including the same, an electric device including the motor, and a method for forming the electrical connection structure portion.
- an insulated wire using aluminum for the core wire when used, an oxide film is formed on the surface of the aluminum forming the core wire exposed in the air.
- the insulated wire is referred to as an aluminum wire.
- the core wire of an aluminum electric wire When the core wire of an aluminum electric wire is immersed in an alloy containing molten tin as a main component, the core wire of the aluminum electric wire is inferior in wettability to the molten alloy as compared with a copper wire or the like. That is, the core wire of an aluminum electric wire has the following problems caused by wettability with respect to an alloy containing molten tin as a main component.
- an alloy containing tin as a main component is simply referred to as an alloy or an alloy body.
- the oxide film formed on the surface of aluminum forming the core wire may be a factor, and the wettability with respect to the molten alloy may be significantly deteriorated. In such a case, it becomes difficult to join the aluminum electric wire to other parts such as an electric terminal.
- the standard potential of aluminum is lower than other metals such as copper, copper alloy and tin used for bonding.
- problems such as galvanic corrosion due to the standard potential difference occur in the aluminum electric wire in contact between aluminum and a different metal.
- aluminum used for aluminum electric wires exhibits large creep characteristics at low temperatures.
- Aluminum is also widely known to have a large gland expansion coefficient.
- caulking As a method of connecting the aluminum wire and other parts. For example, when an aluminum electric wire and other parts are connected by a caulking method, loosening occurs in the caulking portion over time. When looseness occurs in the caulking portion, the contact resistance increases between the aluminum electric wire and other parts. If the contact resistance increases, there is a problem that a failure occurs in the electrical device.
- Patent Document 1 discloses the following technique. That is, the oxide film formed on the surface of aluminum that is the core wire of the aluminum electric wire is removed using ultrasonic vibration by an ultrasonic device. An electrical connection structure is formed in the aluminum from which the oxide film has been removed. An aluminum electric wire and other parts are joined.
- Patent Document 2 discloses the following technique. That is, the surface of aluminum, which is the core wire of the aluminum electric wire, is activated, and the formation of an oxide film is suppressed. An electrical connection structure is formed in the aluminum in which the formation of the oxide film is suppressed. An aluminum electric wire and other parts are joined.
- Patent Document 3 discloses the following technique. That is, the electrical connection structure using an aluminum wire is protected by a tube or hot melt. Since the electrical connection structure is protected, the occurrence of electrolytic corrosion due to contact between aluminum and a different metal can be prevented.
- Patent Document 4 discloses the following technique. That is, in patent document 4, the terminal provided with the insulation valve
- Patent Document 1 it is necessary to introduce large equipment such as an ultrasonic device. Therefore, there is a problem that costs necessary for introducing large-scale equipment are generated and the number of work steps is increased.
- the wire diameter of the aluminum electric wire is more likely to become thinner than desired. Therefore, it is necessary to take a new measure against a decrease in the physical strength of the aluminum wire itself. For example, it is necessary to finely control the temperature at which the alloy is melted and the conditions for immersing the aluminum wire in the melted alloy to achieve a high level of quality in the manufacturing process. As a result, there arises a problem that the cost increases and the work man-hour increases.
- the aluminum electric wire is joined by caulking using a special terminal.
- This method requires a special jig for crimping.
- the terminals are caulked and joined to an electric device with vibration such as a motor.
- the crimped terminal aluminum exhibits a large creep property at low temperature. The joint is loosened over time. And since the contact resistance etc. increase by loosening of the joined part which crimped, there exists a subject that the reliability of an electric equipment falls.
- connection portion between the first conductor portion and the second conductor portion is covered with an alloy body to form the electrical connection structure portion.
- the first conductor portion includes aluminum.
- the surface of the second conductor portion is covered with a component containing nickel.
- the alloy body includes tin, silver, and nickel.
- the aluminum electric wire and the terminal are electrically connected with an alloy body.
- the aluminum electric wire has a conductor part containing aluminum and a covering material that covers the conductor part with an insulating material.
- the surface of the terminal is covered with a component containing nickel.
- the alloy body includes tin, silver, and nickel.
- the electrical connection structure part of the present invention includes a first conductor part, a second conductor part, and an alloy body.
- the first conductor portion includes aluminum.
- the surface of the second conductor portion is covered with a component containing nickel.
- the alloy body covers and electrically connects the connection portion between the first conductor portion and the second conductor portion.
- the alloy body includes tin, silver, and nickel.
- the aluminum electric wire with a terminal which is a remarkable specific example of the said invention is equipped with an aluminum electric wire, a terminal, and an alloy body.
- the aluminum electric wire has a conductor portion containing aluminum and a covering material that covers the conductor portion with an insulating material.
- the surface of the terminal is covered with a component containing nickel.
- the terminal is attached to the conductor portion.
- the alloy body includes tin, silver, and nickel. The alloy body electrically connects the conductor portion and the terminal.
- FIG. 1 is a cross-sectional view showing an electrical connection structure according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view showing another electrical connection structure according to the first embodiment of the present invention.
- FIG. 3 is a perspective view showing an assembled state of the terminal-attached aluminum electric wire according to Embodiment 1 of the present invention.
- FIG. 4 is a perspective view showing another assembled state of the terminal-attached aluminum electric wire according to Embodiment 1 of the present invention.
- FIG. 5 is a perspective view showing still another assembled state of the aluminum electric wire with terminal in the first embodiment of the present invention.
- FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. FIG.
- FIG. 7 is an assembled perspective view of a motor using the aluminum electric wire with a terminal in the first embodiment of the present invention.
- FIG. 8 is a cross-sectional view of a compressor using the motor according to Embodiment 1 of the present invention.
- FIG. 9 is a cross-sectional view of a blower using the motor according to Embodiment 1 of the present invention.
- FIG. 10 is a flowchart illustrating a method for forming the electrical connection structure according to the first embodiment of the present invention.
- FIG. 11 is an explanatory diagram showing the relationship between the metal concentration in the molten alloy body and the production amount compared with Embodiment 1 of the present invention.
- FIG. 12 is an explanatory diagram showing the relationship between the metal concentration in the molten alloy body and the production amount in the first embodiment of the present invention.
- the present invention reduces the elution of nickel into the molten alloy by the method of forming an electrical connection structure in each embodiment described later or the method of manufacturing an aluminum electric wire with a terminal.
- the corrosion resistance of the electrical connection structure is improved.
- the wettability of the molten alloy is stable with respect to the electrical connection structure.
- the corrosion resistance of aluminum wires with terminals is improved.
- the wettability of the molten alloy is stable with respect to the aluminum electric wire with terminal.
- a highly reliable electrical connection structure can be realized even when the wire diameter of the aluminum electric wire is small by the electrical connection structure in each embodiment described later.
- a motor and electrical equipment with high reliability can be provided by a motor equipped with the same electrical connection structure and an electrical equipment equipped with this motor.
- the present invention can realize a highly reliable electrical connection structure portion even when the wire diameter of the aluminum wire is small, by the aluminum wire with a terminal in each embodiment described later.
- motors and electric devices with high reliability can be provided by motors equipped with aluminum wires with the same terminals and electric devices equipped with these motors.
- the inventor proposed adding nickel to the alloy as a method of joining other parts to a conventional aluminum wire.
- the elution of nickel into the molten alloy is reduced while improving the workability by the method for forming an electrical connection structure in each embodiment described later or the method for producing an aluminum electric wire with terminals.
- the present invention realizes a highly reliable electrical connection structure while improving workability even when the wire diameter of the aluminum wire is small by the aluminum wire with a terminal in each embodiment described later. it can.
- FIG. 1 is a cross-sectional view showing an electrical connection structure according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view showing another electrical connection structure according to the first embodiment of the present invention.
- the electrical connection structure portion 10 in the present embodiment includes a first conductor portion 20, a second conductor portion 30, and a connection portion 40 between the first conductor portion 20 and the second conductor portion 30.
- the first conductor portion 20 includes aluminum (Al).
- the first conductor portion 20 may be an aluminum alloy (Al alloy).
- the surface of the second conductor portion 30 is covered with a component containing nickel (Ni).
- the second conductor portion 30 can be realized by a copper-nickel alloy (Cu-Ni alloy) containing copper (Cu).
- the core material 34A is formed of an alloy of copper and zinc (Zn), and a plated layer 36A mainly composed of nickel is applied to the core material 34A.
- the core material 34A is formed of an alloy of copper, tin (Sn), and phosphorus (P) (Phosphor Bronze), and a plated layer 36A mainly composed of nickel is formed on the core material 34A. It can be realized even if applied.
- the alloy body 50 includes tin, silver (Ag), and nickel.
- the alloy body 50 contains nickel in the range of 0.2 wt% to 0.6 wt%.
- the alloy body 50 contains nickel in the range of 0.4 wt% to 0.5 wt%.
- the alloy body 50 contains tin as a main component and silver in the range of 2 wt% to 4 wt%.
- the alloy body 50 includes 3.5% by weight of silver.
- the alloy body 50 covers and electrically connects the connection portion 40 between the first conductor portion 20 and the second conductor portions 30 and 30A.
- FIG. 3 is a perspective view showing an assembled state of the aluminum electric wire with a terminal in the first embodiment of the present invention.
- FIG. 4 is a perspective view showing another assembled state of the terminal-attached aluminum electric wire according to Embodiment 1 of the present invention.
- FIG. 5 is a perspective view showing still another assembled state of the aluminum electric wire with terminal in the first embodiment of the present invention.
- FIG. 6 is a cross-sectional view taken along line 6-6 of FIG.
- the aluminum electric wire 12 with a terminal in the embodiment of the present invention includes an aluminum electric wire 22, a terminal 32, and an alloy body 50.
- the aluminum electric wire 22 includes a conductor portion 24 that is a first conductor portion, and a covering material 26 that covers the conductor portion 24 with an insulating material.
- the conductor portion 24 includes aluminum (Al).
- the conductor 24 may be an aluminum alloy (Al alloy).
- covering material 26 should just have insulation performance.
- the surface of the terminal 32 which is the second conductor portion is covered with a component containing nickel (Ni).
- the terminal 32 is attached to the conductor portion 24.
- the terminal 32 can be realized by a copper-nickel alloy (Cu-Ni alloy) containing copper (Cu).
- Cu-Ni alloy copper-nickel alloy
- the terminal 32 is realized even if the core material 34 is formed of an alloy of copper and zinc (Zn) and the core material 34 is provided with a plating layer 36 mainly composed of nickel. it can.
- connection portion 40 constituted by the exposed conductor portion 24 and the terminal 32 is covered with an alloy body 50.
- the alloy body 50 includes tin (Sn), silver (Ag), and nickel. As described above, the alloy body 50 preferably contains nickel in the range of 0.2 wt% to 0.6 wt%. The alloy body 50 contains tin as a main component and about 3.5% by weight of silver. The alloy body 50 covers and electrically connects the connection portion 40 constituted by the conductor portion 24 and the terminal 32.
- an aluminum electric wire with a terminal having a conductor portion which is a first conductor portion is used for, for example, a transformer, a reactor, a motor, or the like.
- FIG. 7 is an assembled perspective view of a motor using the terminal-attached aluminum electric wire according to the first embodiment of the present invention.
- FIG. 8 is a cross-sectional view of a compressor using the motor according to Embodiment 1 of the present invention.
- FIG. 9 is a cross-sectional view of a blower using the motor according to Embodiment 1 of the present invention.
- the motor 60 includes the above-described terminal-attached aluminum wire 12 and a connected portion 62 to which the terminal-attached aluminum wire 12 is connected.
- 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 control current for driving the motor 60 is passed is wound around the stator core 62B.
- a control current is supplied to the coil 62C through the aluminum electric wire 12 with a terminal.
- the motor in the embodiment of the present invention is used in an electric device together with a driven part driven by the motor.
- FIG. 8 shows a specific example in which the motor is used in a compressor. Similarly, in FIG. 9, the specific example which used this motor for the air blower is shown.
- the compressor 70 that is an electrical device includes a motor 60 and a compression unit 72 that is a driven unit that is driven by the motor 60.
- the blower 74 that is an electric device includes a motor 60 and a blade 76 that is a driven part that is driven by the motor 60.
- the second conductor portion may be a wiring pattern made of, for example, copper wiring or aluminum wiring of a circuit board, in addition to the above-described terminals.
- the first conductor portion containing aluminum and the second conductor portion whose surface is covered with a component containing nickel are interposed via an alloy body containing tin, silver and nickel.
- an electrical connection structure portion for electrical connection is configured.
- the alloy body contains nickel and silver having the predetermined contents shown above, and is mainly composed of tin.
- This configuration allows the first conductor portion and the second conductor portion to be joined at a mechanically high strength, excellent electrical characteristics, and an electrical connection structure portion having high reliability such as electric corrosion resistance and impact resistance.
- FIG. 10 is a flowchart for explaining a method of forming the electrical connection structure according to the first embodiment of the present invention.
- the manufacturing method of the aluminum electric wire with a terminal which is a specific example of the embodiment will be described with reference to FIG.
- the aluminum electric wire 22 has a conductor portion 24 containing aluminum and a covering material 26 that covers the conductor portion 24 with an insulating material.
- the aluminum electric wire 22 has a stranded wire 24A made of aluminum as the conductor portion 24 corresponding to the first conductor portion.
- the covering material 26 having a predetermined length is removed from the aluminum electric wire 22 by, for example, a rotary blade type peeling machine.
- the surface of the terminal 32 is covered with a component containing nickel.
- the terminal 32 corresponds to the second conductor portion.
- the terminal 32 can be realized by a copper-nickel alloy containing copper.
- the terminal 32 can be realized by forming a core material 34 of an alloy of copper and zinc and applying a plating layer 36 containing nickel as a main component to the core material 34.
- the aluminum electric wire 22 having the aluminum stranded wire 24A corresponding to the first conductor portion and the terminal 32 corresponding to the second conductor portion are prepared (step S10).
- step S20 alignment is performed so that the aluminum stranded wire 24A and the terminal 32 overlap in an appropriate range.
- a range where the aluminum stranded wire 24A and the terminal 32 overlap each other is the connection portion 40 (step S20).
- the alloy body is put into the alloy body tank.
- the alloy body is mainly composed of tin and contains nickel and silver.
- the alloy body contains nickel in the range of 0.2 wt% to 0.6 wt%.
- the alloy body contains 3.5% by weight of silver.
- the alloy body tank is heated to 400 ° C., for example. The heated alloy body is melted in the alloy body tank to produce a molten alloy body (step S30).
- Step S40 the aligned stranded aluminum wire 24A, which is an exposed conductor portion, and the terminal 32 attached to the stranded aluminum wire 24A are placed in the molten alloy body for a predetermined time (for example, 2 seconds). ) (Step S40).
- connection part 40 between the aluminum stranded wire 24A and the terminal 32 is covered with the alloy body 50 to form an electrical connection component.
- the connecting portion 40 between the aluminum stranded wire 24A and the terminal 32 is electrically connected by the alloy body 50 (step S50).
- the electrical connection structure portion can be formed at a connection portion formed by an aluminum stranded wire corresponding to the first conductor portion and a terminal corresponding to the second conductor portion.
- FIG. 11 is an explanatory diagram showing the relationship between the metal concentration in the molten alloy body and the production amount compared with Embodiment 1 of the present invention.
- Each of the three lines shown in FIG. 11 indicates the following contents.
- a line 80 indicating the nickel (Ni) concentration indicates a change in the nickel (Ni) concentration.
- a line 82 indicating the aluminum (Al) concentration indicates a change in the concentration of aluminum (Al).
- a line 84 indicating the production limit indicates a production limit that is a formation limit of the electrical connection structure portion.
- the nickel concentration and the electric corrosion resistance of the aluminum wire were evaluated under the following conditions.
- an alloy body containing 3.5% by weight of silver (Ag) and containing nickel at a concentration of 0% by weight to 0.8% by weight with respect to an alloy body containing tin as a main component was prepared.
- the prepared alloy body was heated to 400 ° C. in the alloy body tank.
- the heated alloy body was melted in the alloy body tank, and a molten alloy body tank corresponding to each nickel concentration was prepared.
- the tin-plated terminal was immersed in each molten alloy body tank, and an alloy body mainly composed of tin having a different nickel concentration was adhered to the terminal. Thereafter, the terminal with the alloy body adhered in water containing chlorine ions was left. And the time until the alloy body which has tin as a main component peels from a terminal was measured, and the electric corrosion resistance was evaluated. At this time, the electric corrosion resistance was evaluated based on the time (1 time) until peeling when the nickel concentration was 0% by weight.
- the nickel concentration in the molten alloy body to 0.1% by weight or more, preferably 0.2% by weight or more, it is possible to impart higher electric corrosion resistance than the electrical connection structure portion by the alloy body not containing nickel. Recognize.
- the nickel concentration will be less than 0.2% by weight, it is necessary to take measures such as coating with organic substances as a measure against electrolytic corrosion.
- the nickel concentration and the residual wire diameter of the aluminum electric wire were evaluated by the following methods.
- an alloy body containing 3.5 wt% of silver (Ag) and containing nickel (Sn) as a main component and containing nickel at a concentration of 0 wt% to 0.6 wt% is prepared. did.
- the prepared alloy body was heated to 400 ° C. in the alloy body tank. The heated alloy body was melted in the alloy body tank, and a molten alloy body tank corresponding to each nickel concentration was prepared.
- the insulating coating was peeled from the aluminum electric wire having a wire diameter of ⁇ 0.4 mm using a rotary blade type peeling machine. Thereafter, a flux was applied to the peeled aluminum electric wire, and the aluminum electric wire was immersed in the molten alloy body tank. At this time, the aluminum electric wire was immersed in the molten alloy body for 2 seconds. Thereafter, the diameter of the aluminum core wire of the aluminum electric wire was measured.
- the wire diameter of the aluminum electric wire can be reduced. Furthermore, it can be seen that if the nickel concentration is 0.2% by weight or more, the residual wire diameter of the aluminum electric wire is about 94%, and the thinning of the wire diameter can be significantly suppressed. On the other hand, it can be seen that even if the nickel concentration is 0.4% by weight or more, the wire diameter is not greatly affected.
- the nickel concentration in the molten alloy body 0.1% by weight or more, preferably 0.2% by weight or more, the elution of aluminum from the aluminum electric wire can be prevented, and the thinning of the wire diameter can be prevented. it can.
- FIG. 12 is an explanatory diagram showing the relationship between the metal concentration in the molten alloy body and the production amount in the first embodiment of the present invention.
- the plating layer having nickel as a main component on the outer peripheral surface referred to in the present invention includes a multilayer structure of two or more layers in which nickel plating is applied as strike plating and tin plating is applied thereon.
- the two lines shown in FIG. 12 indicate the following contents.
- the line 86 indicating the nickel (Ni) concentration indicates the number of produced nickel-plated terminals and the change in the nickel concentration in the molten alloy body with respect to the number produced.
- the line 88 indicating the nickel (Ni) concentration indicates the number of units produced when nickel plating is not applied to the terminal as the second conductor portion, that is, the case where there is no nickel plating, and the nickel in the molten alloy body with respect to the production number. It shows the change in concentration.
- the nickel concentration relative to the number of production changes as shown by a line 88 indicating the nickel (Ni) concentration.
- Ni nickel
- the nickel concentration decreases, it becomes difficult to form an electrical connection structure having good quality.
- the nickel concentration is less than 0.2% by weight, it is difficult to secure an electrical connection structure having good quality.
- the productivity can be further improved for the reason described later.
- a terminal obtained by applying nickel plating as strike plating to a core material and an aluminum stranded wire are immersed in the molten alloy body.
- aluminum eluted in the molten alloy body reacts with nickel applied as strike plating to produce an intermetallic compound such as Al 3 Ni. Since nickel is consumed to produce Al 3 Ni or the like that is an intermetallic compound, nickel in the molten alloy body decreases.
- the terminals plated with nickel are immersed in the molten alloy body one after another.
- the nickel component spent to produce Al 3 Ni or the like that is an intermetallic compound is replenished by new terminals that are sequentially immersed.
- the nickel concentration is maintained within a predetermined range in the molten alloy body.
- a preferred nickel concentration is in the range of 0.2% to 0.6% by weight.
- the wettability of the molten alloy with respect to the aluminum stranded wire is continuously ensured as shown by the line 86 indicating the nickel (Ni) concentration in FIG. Therefore, it is possible to ensure the electric corrosion resistance and prevent the wire diameter of the aluminum electric wire from being reduced, and it is possible to form an electrical connection structure having high reliability.
- phosphor bronze is used as a core material, and the core material is subjected to nickel plating as strike plating.
- alloy body tank those widely available on the market can be used.
- the alloy body tank only needs to have a function of heating the alloy body to a temperature equal to or higher than the melting point.
- An electric heating body or the like is employed for heating the alloy body tank.
- the temperature of the alloy body tank only needs to be set to a specific temperature. Further, the alloy body tank only needs to have a temperature adjusting function for keeping the set temperature constant.
- the field of application of the present invention is applicable to motors and electronic devices in which aluminum electric wires with terminals are used, and electric equipment including the motors and electronic devices.
- it is effective for motors with large vibrations that are desired to be reduced in weight, and compressors and blowers equipped with such motors.
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Abstract
Description
図1は、本発明の実施の形態1における電気的接続構造部を示す断面図である。図2は、本発明の実施の形態1における他の電気的接続構造部を示す断面図である。
図11は、本発明の実施の形態1と比較する溶融合金体中の金属濃度と生産量の関係を示す説明図である。図11に示す3本の線は、各々、つぎの内容を示している。ニッケル(Ni)濃度を示す線80は、ニッケル(Ni)の濃度の変化を示している。アルミニウム(Al)濃度を示す線82は、アルミニウム(Al)の濃度の変化を示している。生産限界を示す線84は、電気的接続構造部の形成限界である生産限界を示している。
図12は、本発明の実施の形態1における溶融合金体中の金属濃度と生産量の関係を示す説明図である。
12 端子付きアルミニウム電線
20 第1導体部
22 アルミニウム電線
24 導体部
24A 撚線
26 被覆材
30,30A 第2導体部
32 端子
34,34A 芯材
36,36A メッキ層
40 接続部
50 合金体
60 モータ
62 被接続部
62A ステータ(被接続部)
62B ステータコア
62C コイル
64 ロータ
64A ロータコア
64B シャフト
64C 軸受
70 圧縮機(電気機器)
72 圧縮部(被駆動部)
74 送風機(電気機器)
76 羽根(被駆動部)
80 ニッケル(Ni)濃度を示す線
82 アルミニウム(Al)濃度を示す線
84 生産限界を示す線
86 ニッケル(Ni)濃度を示す線
88 ニッケル(Ni)濃度を示す線
Claims (20)
- アルミニウムを含む第1導体部とニッケルを含む成分で表面が覆われた第2導体部との接続部を、錫と銀とニッケルとを含む合金体で被覆して形成する電気的接続構造部の形成方法であって、
前記第1導体部と前記第2導体部とを接続して接続部を形成するステップと、
前記合金体を溶融するステップと、
溶融した前記合金体に少なくとも前記接続部を浸漬するステップと、
を備える電気的接続構造部の形成方法。 - 前記合金体の前記ニッケルの含有量が、0.2重量%から0.6重量%の範囲である請求項1に記載の電気的接続構造部の形成方法。
- 前記第2導体部は、さらに銅を含む銅-ニッケル合金である請求項1または2に記載の電気的接続構造部の形成方法。
- 前記表面は、前記ニッケルを主成分とするメッキ層である請求項1または2に記載の電気的接続構造部の形成方法。
- アルミニウム電線と端子とを合金体で電気的に接続する端子付きアルミニウム電線の製造方法であって、
前記アルミニウム電線は、アルミニウムを含む導体部と、絶縁性材料で前記導体部を被覆する被覆材と、を有し、
前記端子は、ニッケルを含む成分で表面が覆われ、
前記合金体は、錫と銀とニッケルとを含み、
前記アルミニウム電線から前記被覆材の一部を除去するステップと、
前記被覆材の一部が除去されて、剥き出しになった前記導体部に前記端子を取り付けるステップと、
前記合金体を溶融するステップと、
溶融した前記合金体に、剥き出しになった前記導体部と、前記導体部に取り付けられた前記端子と、を浸漬するステップと、
を備える端子付きアルミニウム電線の製造方法。 - 前記合金体の前記ニッケルの含有量が、0.2重量%から0.6重量%の範囲である請求項5に記載の端子付きアルミニウム電線の製造方法。
- 前記端子は、さらに銅を含む銅-ニッケル合金で形成される請求項5または6に記載の端子付きアルミニウム電線の製造方法。
- 前記端子を覆う前記表面は、前記ニッケルを主成分とするメッキ層である請求項5または6に記載の端子付きアルミニウム電線の製造方法。
- アルミニウムを含む第1導体部と、
ニッケルを含む成分で表面が覆われた第2導体部と、
前記第1導体部と前記第2導体部との接続部を被覆して電気的に接続するとともに、錫と銀とニッケルとを含む合金体と、
を備える電気的接続構造部。 - 前記合金体の前記ニッケルの含有量が、0.2重量%から0.6重量%の範囲である請求項9に記載の電気的接続構造部。
- 前記第2導体部は、さらに銅を含む銅-ニッケル合金である請求項9または10に記載の電気的接続構造部。
- 前記表面は、前記ニッケルを主成分とするメッキ層である請求項9または10に記載の電気的接続構造部。
- 請求項9から請求項12のいずれか一項に記載の電気的接続構造部と、前記電気的接続構造部が接続される被接続部と、を備えたモータ。
- 請求項13に記載のモータと、前記モータで駆動される被駆動部と、を備えた電気機器。
- アルミニウムを含む導体部と、前記導体部を絶縁性材料で被覆する被覆材と、を有するアルミニウム電線と、
ニッケルを含む成分で表面が覆われるとともに、前記導体部に取り付けられる端子と、
錫と銀とニッケルとを含み、前記導体部と前記端子とを電気的に接続する合金体と、
を備える端子付きアルミニウム電線。 - 前記合金体の前記ニッケルの含有量が、0.2重量%から0.6重量%の範囲である請求項15に記載の端子付きアルミニウム電線。
- 前記端子は、さらに銅を含む銅-ニッケル合金で形成される請求項15または16に記載の端子付きアルミニウム電線。
- 前記表面は、前記ニッケルを主成分とするメッキ層である請求項15または16に記載の端子付きアルミニウム電線。
- 請求項15から請求項18のいずれか一項に記載の端子付きアルミニウム電線と、前記端子付きアルミニウム電線が接続される被接続部と、を備えたモータ。
- 請求項19に記載のモータと、前記モータで駆動される被駆動部と、を備えた電気機器。
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JP2013550698A JP5467376B1 (ja) | 2012-06-04 | 2013-05-31 | 電気的接続構造部の形成方法、端子付きアルミニウム電線の製造方法、電気的接続構造部とこれを備えたモータおよびこのモータを備えた電気機器、端子付きアルミニウム電線とこれを備えたモータおよびこのモータを備えた電気機器 |
US14/404,983 US9424966B2 (en) | 2012-06-04 | 2013-05-31 | Method for forming electrical connection structure part, method for producing aluminum wire with terminal, electrical connection structure part, motor provided with electrical connection structure part, and electrical device provided with motor provided with electrical connection structure part, aluminum wire with terminal, motor provided with aluminum wire with terminal, and electrical device provided with motor provided with aluminum wire with terminal |
CN201380029244.6A CN104380543B (zh) | 2012-06-04 | 2013-05-31 | 电连接结构部的形成方法、带端子的铝电线的制造方法、电连接结构部和具备其的电动机及具备该电动机的电设备、带端子的铝电线和具备其的电动机及具备该电动机的电设备 |
US14/956,623 US20160086696A1 (en) | 2012-06-04 | 2015-12-02 | Method for forming electrical connection structure part, method for producing aluminum wire with terminal, electrical connection structure part, motor provided with electrical connection structure part, and electrical device provided with motor provided with electrical connection structure part, aluminum wire with terminal, motor provided with aluminum wire with terminal, and electrical device provided with motor provided with aluminum wire with terminal |
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US14/956,623 Division US20160086696A1 (en) | 2012-06-04 | 2015-12-02 | Method for forming electrical connection structure part, method for producing aluminum wire with terminal, electrical connection structure part, motor provided with electrical connection structure part, and electrical device provided with motor provided with electrical connection structure part, aluminum wire with terminal, motor provided with aluminum wire with terminal, and electrical device provided with motor provided with aluminum wire with terminal |
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JP5467376B1 (ja) * | 2012-06-04 | 2014-04-09 | パナソニック株式会社 | 電気的接続構造部の形成方法、端子付きアルミニウム電線の製造方法、電気的接続構造部とこれを備えたモータおよびこのモータを備えた電気機器、端子付きアルミニウム電線とこれを備えたモータおよびこのモータを備えた電気機器 |
-
2013
- 2013-05-31 JP JP2013550698A patent/JP5467376B1/ja active Active
- 2013-05-31 MY MYPI2014703554A patent/MY153689A/en unknown
- 2013-05-31 CN CN201380029244.6A patent/CN104380543B/zh active Active
- 2013-05-31 WO PCT/JP2013/003439 patent/WO2013183265A1/ja active Application Filing
- 2013-05-31 US US14/404,983 patent/US9424966B2/en active Active
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2015
- 2015-12-02 US US14/956,623 patent/US20160086696A1/en not_active Abandoned
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JP2011181499A (ja) * | 2010-02-05 | 2011-09-15 | Furukawa Electric Co Ltd:The | 接続構造体 |
JP2011256429A (ja) * | 2010-06-09 | 2011-12-22 | Autonetworks Technologies Ltd | 防食剤、端子付き被覆電線およびワイヤーハーネス |
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DE112015000538B4 (de) | 2014-01-28 | 2023-09-07 | Sumitomo Wiring Systems, Ltd. | Kabelendstück und Struktur zum Verbinden des Kabelendstücks mit einem Aluminiumkabel |
EP3916920A1 (en) * | 2020-05-27 | 2021-12-01 | Yazaki Corporation | Terminal connecting structure |
Also Published As
Publication number | Publication date |
---|---|
CN104380543A (zh) | 2015-02-25 |
JPWO2013183265A1 (ja) | 2016-01-28 |
US20150187462A1 (en) | 2015-07-02 |
CN104380543B (zh) | 2016-03-02 |
US9424966B2 (en) | 2016-08-23 |
MY153689A (en) | 2015-03-10 |
JP5467376B1 (ja) | 2014-04-09 |
US20160086696A1 (en) | 2016-03-24 |
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