WO2015151959A1 - 端子対及び端子対を備えたコネクタ対 - Google Patents
端子対及び端子対を備えたコネクタ対 Download PDFInfo
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- WO2015151959A1 WO2015151959A1 PCT/JP2015/059123 JP2015059123W WO2015151959A1 WO 2015151959 A1 WO2015151959 A1 WO 2015151959A1 JP 2015059123 W JP2015059123 W JP 2015059123W WO 2015151959 A1 WO2015151959 A1 WO 2015151959A1
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- Prior art keywords
- terminal
- alloy
- layer
- phase
- contact portion
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
- C25D5/505—After-treatment of electroplated surfaces by heat-treatment of electroplated tin coatings, e.g. by melting
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth layers
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/022—Electroplating of selected surface areas using masking means
Definitions
- the present invention relates to a terminal pair and a connector pair provided with a terminal pair.
- Cu (copper) and Cu alloys having high conductivity, excellent ductility, and appropriate strength are frequently used for the base material of terminals used for electrical connection of electric wires and the like.
- Cu has an insulating film such as an oxide film or a sulfide film formed on the surface in an environment where it is used, there is a problem that the contact resistance with the counterpart terminal becomes high.
- the surface of the base material made of the Cu alloy strip is coated with Cu—Sn alloy.
- Patent Document 1 There is a technique for forming a layer and an Sn layer in this order (Patent Document 1). Since the Cu—Sn alloy is harder than pure Sn, by exposing both the Cu—Sn alloy and Sn to the surface, the friction coefficient can be reduced while maintaining a low contact resistance, thereby inserting a terminal. The insertion force required at the time can be reduced.
- the present invention has been made in view of such a background, and intends to provide a terminal pair having a low contact resistance and a low friction coefficient and a connector pair including the terminal pair.
- One aspect of the present invention is a terminal pair used by contacting a first contact portion provided on a first terminal and a second contact portion provided on a second terminal,
- the first contact portion is formed on a first base material made of metal, has a Sn—Pd alloy phase and a Sn phase, and one of the two phases is dispersed in the other phase.
- the second contact portion has a Cu—Sn alloy layer formed on the second base material made of metal, and an Sn layer covering a part of the Cu—Sn alloy layer,
- the surface of the second contact portion includes a Cu—Sn alloy portion where the Cu—Sn alloy layer is exposed and a Sn portion where the Sn layer is exposed.
- Another aspect of the present invention is a connector pair including the terminal pair, In the connector pair, the first connector including the first terminal and the second connector including the second terminal are fitted and used.
- the first contact portion provided on the first terminal in the terminal pair has the composite coating layer having the Sn (tin) -Pd (palladium) alloy phase and the Sn phase, In addition, the Sn—Pd alloy phase and the Sn phase coexist. Therefore, the first terminal can obtain both the effect of reducing the friction coefficient due to the relatively hard Sn—Pd alloy phase and the effect of reducing the contact resistance due to the relatively soft Sn phase.
- the surface of the second contact portion provided on the second terminal coexists with the Cu—Sn alloy portion where the Cu—Sn alloy layer is exposed and the Sn portion where the Sn layer is exposed. ing. Therefore, similarly to the above, it is possible to obtain both the effect of reducing the friction coefficient by the relatively hard Cu—Sn alloy layer and the effect of reducing the contact resistance by the relatively soft Sn layer.
- the terminal pair can further reduce the friction coefficient while maintaining a low contact resistance.
- the connector pair includes the first connector on the first connector and the second terminal on the second connector. Therefore, the connector pair can reduce the insertion force when fitting the first connector and the second connector.
- FIG. 2 is a cross-sectional view of a composite coating layer in Example 1.
- FIG. 1 The perspective view of the 2nd contact part in Example 1.
- FIG. 6 The front view of the 1st connector provided with the some 1st terminal in Example 2.
- FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5.
- FIG. The graph which shows the result of a friction coefficient measurement in an experiment example.
- the first terminal and the second terminal in the terminal pair can be configured as a male terminal, a female terminal, a PCB (Printed Circuit Board) connector pin or the like having a known shape, depending on the application.
- PCB Printed Circuit Board
- the first base material forming the terminal shape can be selected from various metals having conductivity. Specifically, Cu, Al (aluminum), Fe (iron), or an alloy containing these metals is suitably used as the first base material. These metal materials are excellent not only in electrical conductivity but also in formability and springiness, and can be applied to various types of electrical contacts.
- the shape of the first base material there are various shapes such as a rod shape and a plate shape, and the dimensions such as the thickness can be variously selected according to the application.
- first contact portion On the first substrate, there is a first contact portion having a composite coating layer.
- the composite coating layer only needs to be present at least on the first contact portion, and may be present on the entire surface of the first terminal.
- the thickness of the composite coating layer is preferably in the range of 0.5 to 3 ⁇ m, more preferably in the range of 1 to 2 ⁇ m, from the viewpoints of wear resistance, electrical conductivity, and the like.
- the Sn phase in the composite coating layer is a phase mainly composed of Sn
- the Sn—Pd alloy phase is a phase mainly composed of an alloy of Sn and Pd.
- the above-mentioned “main component” refers to a component that is contained most in each phase. That is, the Sn phase constitutes the first base material such as Pd, Cu, etc., which is not incorporated in the Sn—Pd alloy phase, elements that may be contained in the first intermediate layer described later, in addition to Sn as the main component. Element and unavoidable impurities. Further, the Sn—Pd-based alloy phase may contain elements that may be contained in the first intermediate layer, elements that constitute the first base material, inevitable impurities, and the like, in addition to the alloy as the main component.
- the composite coating layer has a structure in which either one of the Sn phase and the Sn—Pd alloy phase is dispersed in the other phase.
- any one phase is connected in a network, and the void is filled with the other phase, or a sea phase composed of either phase is composed of the other phase.
- sea-island structures with dispersed island phases From the viewpoint of further enhancing the effect of reducing the contact resistance and the effect of reducing the friction coefficient, it is preferable to have a structure in which Sn—Pd-based alloy phases are dispersed in the Sn phase.
- the Pd content in the composite coating layer is preferably 7 atomic% or less.
- the Pd content is the atomic% of Pd with respect to the total of Sn and Pd contained in the composite coating layer.
- the Pd content in the composite coating layer is preferably 7 atomic% or less from the viewpoint of improving solder wettability.
- the Pd content is more preferably 6.5 atomic percent or less, further preferably 6 atomic percent or less, further preferably 5.5 atomic percent or less, and particularly preferably 5 atomic percent or less.
- the Pd content in the composite coating layer can be set to 1 atomic% or more from the viewpoint of sufficiently ensuring the content of the Sn—Pd alloy phase.
- Both the Sn phase and the Sn—Pd alloy phase exist on the surface of the first contact portion, that is, the surface of the composite coating layer.
- An Sn oxide film may be present on the surface of the composite coating layer as long as it does not adversely affect the realization of low insertion force and secure good solder wettability.
- the abundance ratio of the Sn phase and the Sn—Pd alloy phase on the surface of the composite coating layer can be defined, for example, by the volume ratio of the Sn phase and the Sn—Pd alloy phase in the composite coating layer.
- the volume ratio of the Sn—Pd-based alloy phase in the composite coating layer is preferably 1.0 to 95.0% by volume, and more preferably 50.0 to 95.0% by volume.
- the effect of reducing the contact resistance and the effect of reducing the friction coefficient can be obtained with a good balance.
- the volume ratio of the Sn—Pd alloy phase is less than 1.0% by volume, the content of the relatively hard Sn—Pd alloy phase may be insufficient, and the effect of reducing the friction coefficient may be insufficient. There is.
- the volume ratio of the Sn—Pd-based alloy phase exceeds 95.0% by volume, the content of the relatively soft Sn phase may be insufficient, and the effect of reducing contact resistance may be insufficient. .
- the abundance ratio of the Sn phase and the Sn—Pd alloy phase on the surface of the composite coating layer may be defined by the area ratio of the Sn—Pd alloy phase exposed on the surface of the composite coating layer.
- the value of the area ratio is generally almost the same as the value of the volume ratio of the Sn—Pd alloy phase described above.
- the area ratio of the Sn—Pd alloy phase exposed on the surface of the composite coating layer is preferably 1.0% or more, preferably 10% or more, more preferably 20% or more, and particularly preferably 50% or more. In this case, the presence of the relatively hard Sn—Pd alloy phase makes it possible to effectively reduce the friction coefficient during sliding.
- the area ratio of the Sn—Pd alloy phase exposed on the surface of the composite coating layer is preferably 95% or less, more preferably 80% or less.
- the presence of the relatively soft Sn phase makes it easy to reduce the contact resistance.
- the area ratio is more preferably 1.0% or more and 95% or less, and further preferably 50% or more and 95% or less.
- the area ratio of the Sn—Pd alloy phase exposed on the surface of the composite coating layer can be calculated as follows.
- the Sn phase can be dissolved and removed by immersing it in a chemical solution that can selectively etch only the Sn phase without affecting the Sn—Pd alloy phase.
- a chemical solution for example, an aqueous solution in which 10 g of sodium hydroxide and 1 g of p-nitrophenol are dissolved in 200 ml of distilled water can be used.
- an SEM (scanning electron microscope) image of the surface of the composite coating layer with the Sn phase removed is obtained.
- a binarization process based on contrast is performed on the SEM image to obtain a binarized image. From the binarized image, the area ratio of the Sn—Pd alloy phase can be obtained.
- the contrast threshold in the binarization process may be set so that the contour of the Sn—Pd alloy phase in the binarized image substantially matches the contour of the Sn—Pd alloy phase in the SEM image.
- the composite coating layer preferably has a glossiness on the surface of 10 to 300%.
- the ratio between the Sn phase exposed on the surface of the composite coating layer and the Sn—Pd alloy phase is in an appropriate range, and the effect of reducing the friction coefficient and the effect of reducing the contact resistance can be obtained in a balanced manner.
- the glossiness exceeds 300%, the area ratio of the Sn—Pd alloy phase exposed on the surface of the composite coating layer becomes low, and the effect of reducing the friction coefficient may be insufficient.
- the glossiness is less than 10%, the area ratio of the Sn phase exposed on the surface of the composite coating layer becomes low, and the effect of reducing contact resistance may be insufficient.
- the composite coating layer having the above-described structure is obtained by, for example, sequentially laminating a Pd plating film and an Sn plating film on the first substrate using an electroplating method, and then performing a reflow process to heat these plating films, It can be formed by a method of alloying Sn and Pd.
- the thickness of the Pd plating film can be appropriately selected from a range of 10 to 50 nm, for example.
- the thickness of the Sn plating film can be appropriately selected from a range of 1 to 2 ⁇ m, for example.
- the heating temperature in the reflow process can be about 230 to 400 ° C. Note that the above-described method is an example, and can be changed as appropriate.
- the composite coating layer may be directly laminated on the first base material, or may be laminated on the first intermediate layer interposed between the first base material.
- middle layer the metal which has the effect
- the first intermediate layer may be composed of one metal layer or may be composed of two or more metal layers.
- As the material of the first intermediate layer for example, Ni (nickel), Ni alloy, Cu, Cu alloy, Co (cobalt) or the like can be used.
- Ni (nickel), Ni alloy, Cu, Cu alloy, Co (cobalt) or the like can be used as the material of the first base material, the function required for the first intermediate layer, etc. It can be selected as appropriate according to the conditions.
- the second base material forming the terminal shape is made of a metal material. That is, as the second base material, Cu, Al, Fe, or an alloy containing these metals is preferably used as in the first base material.
- a second contact portion having a Cu—Sn alloy layer and an Sn layer is present on the second substrate.
- a part of the Cu—Sn alloy layer is covered with the Sn layer, and the remaining part is exposed on the surface.
- the Cu—Sn alloy layer and the Sn layer need only exist on at least the second contact portion, and may exist on the entire surface of the second terminal.
- the Cu—Sn alloy layer and the Sn layer having the above-described structure are alloyed with Sn and Cu by performing a reflow process in a state where the Cu plating film is laminated on the Sn plating film formed on the second substrate. Can be formed.
- the Sn layer is a layer containing Sn as a main component, and includes elements that may be contained in the second intermediate layer described later, elements constituting the second base material, inevitable impurities, etc. in addition to Sn as the main component. Can be.
- the Cu—Sn alloy layer is a layer mainly composed of an alloy of Cu and Sn. In addition to the alloy as the main component, the element that may be contained in the second intermediate layer and the element that constitutes the second base material And inevitable impurities may be included.
- the composition ratio of Cu and Sn in the Cu—Sn alloy layer is not particularly limited, but it is preferable that the Cu—Sn alloy layer contains an intermetallic compound having a composition of Cu 6 Sn 5 .
- the specific intermetallic compound has a higher hardness than Sn and is excellent in both heat resistance and corrosion resistance. Therefore, the second terminal having the specific intermetallic compound has more excellent durability.
- a second intermediate layer made of Ni may exist between the second base material and the Cu—Sn alloy layer. Due to the presence of the second intermediate layer, the metal element constituting the second base material can be prevented from diffusing into the Cu—Sn alloy layer or the Sn layer. In addition, the second intermediate layer has an effect of improving the adhesion between the second base material and the Cu—Sn alloy layer or Sn layer. Therefore, the second terminal having the second intermediate layer has better durability. In order to sufficiently obtain the above-described effects, the thickness of the second intermediate layer is more preferably 3 ⁇ m or less.
- a Cu—Sn alloy portion where the Cu—Sn alloy layer is exposed and an Sn portion where the Sn layer is exposed coexist.
- the structure in which the Cu—Sn alloy part is scattered in the Sn part, and the Sn part is scattered in the Cu—Sn alloy part includes structure. From the viewpoint of further enhancing the effect of reducing the contact resistance and the effect of reducing the friction coefficient, it is preferable to have a structure in which Cu—Sn alloy parts are scattered in the Sn part.
- the second terminal can easily achieve both reduction of the friction coefficient and reduction of the contact resistance by appropriately controlling the area ratio of the Cu—Sn alloy portion occupying the surface.
- the area ratio of the Cu—Sn alloy part can be calculated, for example, by surface observation using an electron microscope, a probe microscope, or the like.
- the area ratio of the Cu—Sn alloy part can also be controlled to an appropriate range by controlling the glossiness of the surface obtained by measurement by the following method to a specific range.
- the glossiness of the second contact portion within the range of 50 to 1000%, it is possible to easily achieve both reduction of the friction coefficient and reduction of the contact resistance. Since the Cu—Sn alloy part exposed on the surface of the second contact part has a lower gloss than the Sn part, the gloss ratio tends to be lower as the area ratio occupied by the Cu—Sn alloy part is larger. Therefore, by controlling the glossiness within the specific range, the area ratio of the Cu—Sn alloy part and the Sn part on the surface of the second contact part is controlled to an appropriate range, and thus the contact resistance is reduced. And the effect of reducing the friction coefficient can be obtained in a balanced manner.
- the glossiness exceeds 1000%, the area ratio occupied by the Cu—Sn alloy part becomes excessively small, so that the effect of reducing the friction coefficient may be insufficient.
- the glossiness is less than 50%, the area ratio occupied by the Cu—Sn alloy part becomes excessively large, and the effect of reducing contact resistance may be insufficient. Therefore, it is preferable to control the glossiness within a range of 50 to 1000% from the viewpoint of achieving both reduction in contact resistance and reduction in friction coefficient. From the same viewpoint, it is more preferable to control the glossiness within a range of 100 to 800%.
- the glossiness of the second contact portion is a value measured at an incident angle of 20 ° using a method based on JIS Z 8741-1997.
- the Cu—Sn alloy part has a smoother surface than the surface of the Cu—Sn alloy layer covered by the Sn layer, and in the state where only the Sn layer is dissolved and removed, the Cu—Sn alloy part
- the glossiness of the portion becomes higher than the glossiness of the Cu—Sn alloy layer covered with the Sn layer. Therefore, the glossiness tends to increase as the area ratio occupied by the Cu—Sn alloy portion increases. Therefore, by controlling the glossiness within the specific range, the area ratio between the Cu—Sn alloy part and the Sn part on the surface of the second contact part is controlled to an appropriate range, and thus the contact resistance is reduced. And a reduction in the coefficient of friction can be easily achieved.
- the glossiness When the glossiness is less than 10%, the area ratio occupied by the Cu—Sn alloy part becomes excessively small, so that the effect of reducing the friction coefficient may be insufficient.
- the glossiness exceeds 80%, the area ratio occupied by the Cu—Sn alloy part becomes excessively large, and the effect of reducing the contact resistance may be insufficient. Therefore, it is preferable to control the glossiness within a range of 10 to 80% from the viewpoint of achieving both reduction in contact resistance and reduction in friction coefficient. From the same viewpoint, it is more preferable to control the glossiness within a range of 15 to 70%.
- the glossiness of the Cu—Sn alloy layer is a value measured at an incident angle of 60 ° using a method based on JIS Z 8741-1997.
- the Sn layer can be removed by immersing it in a chemical solution that can selectively dissolve only the Sn layer without damaging the Cu—Sn alloy layer.
- a chemical solution for example, an aqueous solution in which 10 g of sodium hydroxide and 1 g of p-nitrophenol are dissolved in 200 ml of distilled water can be used.
- Both the glossiness of the second contact portion and the glossiness of the Cu—Sn alloy layer described above can be adjusted by the method exemplified below. That is, it is possible to adopt a method of adjusting the density and size of the convex portions by changing the condition of the surface treatment (described later) for imparting the irregular shape to the surface of the second base material. Further, a method of adjusting the filling amount of the Sn layer into the corresponding concave portion (described later) appearing on the surface of the Cu—Sn alloy layer by changing the thickness of the Sn layer may be adopted. The latter method is preferable from the viewpoint of accuracy of glossiness control and simplicity of processing.
- the surface of the second base material may be provided with an uneven shape having a convex portion and a concave portion in advance.
- a structure in which the Cu—Sn alloy layer is formed along the concavo-convex shape and corresponding concave portions appearing on the surface of the Cu—Sn alloy layer due to the concave portions is easily filled with the Sn layer. realizable.
- the Cu—Sn alloy layer formed in the vicinity of the top of the convex portion is likely to be exposed on the surface of the second contact portion. That is, in this case, a state in which the Cu—Sn alloy part and the Sn part coexist on the surface of the second contact part can be realized more easily. As a result, both the contact resistance and the friction coefficient can be reliably reduced.
- corrugated shape of the 2nd base material surface mentioned above can be formed by a conventionally well-known mechanical polishing process etc., for example.
- the second contact portion has the above-described structure, if the filling amount of the Sn layer is small, the height difference between the Cu—Sn alloy portion exposed on the surface and the Sn portion may become excessively large.
- the above-described height difference is excessively high, it is difficult to bring both the Cu—Sn alloy part and the Sn part into contact with the first contact part, which may increase the contact resistance and the friction coefficient.
- the arithmetic average roughness Ra on the surface of the second contact portion is 3.0 ⁇ m or less even when measured along any direction, and Ra is 0.15 ⁇ m or less. It is preferable to control the surface shape so as to have at least one direction.
- the surface shape can be controlled, for example, by controlling the height difference of the concavo-convex shape applied to the second base material, adjusting the filling amount of the Sn layer, or the like.
- the total thickness of the Cu—Sn alloy layer and the Sn layer is preferably in the range of 0.5 to 5.0 ⁇ m. Thereby, reduction of contact resistance and reduction of a friction coefficient can be made compatible more easily.
- the total thickness is less than 0.5 ⁇ m, the thickness of both the Cu—Sn alloy layer and the Sn layer becomes insufficient, so that the effect of reducing the contact resistance and the effect of reducing the friction coefficient are insufficient. There is a risk.
- the total thickness exceeds 5 ⁇ m, the thickness of the relatively hard Cu—Sn alloy layer is excessively increased, which may lead to deterioration of workability and productivity of the second terminal.
- the thickness of the Cu—Sn alloy layer is preferably in the range of 0.1 to 3.0 ⁇ m.
- the thickness of the Cu—Sn alloy layer is less than 0.1 ⁇ m, the effect of reducing the friction coefficient may be insufficient.
- the thickness of the Cu—Sn alloy layer exceeds 3.0 ⁇ m, the workability and productivity of the second terminal may be lowered.
- the thickness of the Sn layer is preferably in the range of 0.2 to 5.0 ⁇ m as an average value, and the maximum thickness in the corresponding recess is preferably in the range of 1.2 to 20 ⁇ m.
- the thickness of the Sn layer is thinner than the above specific range, the effect of reducing contact resistance may be insufficient.
- the thickness of Sn layer is thicker than the above-mentioned specific range, there exists a possibility that the effect of a friction coefficient reduction may become inadequate.
- Example 1 Examples of the terminal pairs will be described with reference to the drawings.
- the terminal pair 1 is configured to be used by contacting a first contact portion 3 provided on the first terminal 2 and a second contact portion 5 provided on the second terminal 4. Yes.
- the first contact portion 3 is formed on a first base material 31 made of metal, has a Sn—Pd alloy phase 321 and a Sn phase 322, and is one of the above two types of phases.
- One phase has a composite coating layer 32 dispersed in the other phase.
- the Sn—Pd alloy phase 321 and the Sn phase 322 coexist on the surface 30 of the first contact portion 3.
- the second contact portion 5 includes a Cu—Sn alloy layer 52 formed on a second base 51 made of metal, and an Sn layer 53 covering a part of the Cu—Sn alloy layer 52. have. Further, the surface 50 of the second contact portion 5 coexists with the Cu—Sn alloy portion 520 from which the Cu—Sn alloy layer 52 is exposed and the Sn portion 530 from which the Sn layer 53 is exposed. The details will be described below.
- the first terminal 2 having the composite coating layer 32 constitutes a male terminal (see FIG. 1A) in the terminal pair 1.
- the first terminal 2 includes a barrel portion 21 that connects electric wires, a cylindrical body portion 22 that is continuous with the barrel portion 21, and a tab portion 23 that is continuous with the cylindrical body portion 22.
- the first terminal 2 has a substantially rod shape, and a barrel portion 21, a cylindrical body portion 22, and a tab portion 23 are arranged in a line.
- the first terminal 2 of this example has a composite coating layer 32 only on the tab portion 23. Further, as shown in FIG. 2, the first contact portion 3 is provided on the tab portion 23.
- the cylindrical body portion 22 has a substantially square cylindrical shape extending in the longitudinal direction of the first terminal 2.
- the tab portion 23 is connected to one open end 221 of the cylindrical body portion 22, and the barrel portion 21 is connected to the other open end 222.
- the tab portion 23 extends in the longitudinal direction of the first terminal 2 with one open end 221 of the cylindrical body portion 22 as a base end, and has a flat cross section perpendicular to the extending direction.
- the barrel portion 21 includes a wire barrel portion 211 that fixes a conductor exposed from the terminal portion of the electric wire, and an insulation barrel portion 212 that fixes an insulating coating portion of the electric wire.
- the tab portion 23 is pressed toward the top plate portion 424 of the cylindrical body portion 42 by the elastic piece portion 43 in a state where the tab portion 23 is inserted into the cylindrical body portion 42 of the second terminal 4 described later.
- an electrical connection is formed between the first contact portion 3 provided in the tab portion 23 and the second contact portion 5 provided in the elastic piece portion 43.
- the first terminal 2 can be manufactured, for example, by the method exemplified below. First, a plate-like first base material 31 made of a Cu alloy is prepared, and pretreatment such as degreasing and cleaning is performed. Next, the surface of the first base material 31 is covered with a masking material so that the plating film is formed only on the portion that will later become the tab portion 23. Note that when the composite coating layer 32 is formed on the entire surface of the first terminal 2, no masking material is required.
- an Ni plating film having a thickness of 1 to 3 ⁇ m, a Pd plating film having a thickness of 10 to 50 nm, and an Sn plating film having a thickness of 1 to 2 ⁇ m are sequentially laminated on the first substrate 31 by electroplating.
- a reflow process of heating at a temperature of 230 to 400 ° C. is performed to alloy Sn and Pd to form the composite coating layer 32.
- Ni may diffuse from the Ni plating film into the composite coating layer 32 to form a Ni—Sn alloy.
- a Ni layer 331 made of Ni that has not diffused into the composite coating layer 32, between the composite coating layer 32 and the first base material 31, and A first intermediate layer 33 composed of the Ni—Sn alloy layer 332 is formed.
- the first base material 31 on which the composite coating layer 32 is formed is pressed to form the first terminal 2 in shape.
- the first terminal 2 can be obtained.
- the second terminal 4 having the Cu—Sn alloy layer 52 and the Sn layer 53 constitutes a female terminal (see FIG. 1B) in the terminal pair 1.
- the second terminal 4 has a substantially rod shape, and has a barrel portion 41 for connecting an electric wire and a cylindrical body portion 42 connected to the barrel portion 41.
- the cylindrical body portion 42 has a substantially square cylindrical shape extending in the longitudinal direction of the second terminal 4. One open end 421 of the cylindrical body portion 42 is open so that the tab portion 23 can be inserted. Further, the barrel portion 41 is connected to the other opening end 422.
- the barrel part 41 has a wire barrel part 411 and an insulation barrel part 412, similarly to the first terminal 2.
- an elastic piece portion 43 is provided inside the cylindrical body portion 42.
- the elastic piece portion 43 is formed by folding the bottom plate portion 423 of the cylindrical body portion 42 inward and rearward, and the tab portion 23 inserted into the cylindrical body portion 42 faces the bottom plate portion 423. Press toward the top plate 424 side.
- the second terminal 4 of this example has a Cu—Sn alloy layer 52 and a Sn layer 53 only on the elastic piece 43.
- a second contact portion 5 projecting toward the top plate portion 424 so as to have a hemispherical shape is formed at a substantially central portion of the elastic piece portion 43 in the longitudinal direction.
- the second contact portion 5 is pressed against the tab portion 23 by the pressing force of the elastic piece portion 43 in a state where the tab portion 23 is inserted into the cylindrical body portion 42. Accordingly, an electrical connection is formed between the first contact portion 3 and the second contact portion 5.
- the second terminal 4 can be manufactured by the method exemplified below. First, a plate-like second base material 51 made of a Cu alloy having a concave and convex shape having a concave portion and a convex portion in advance is prepared, and a pretreatment such as degreasing and cleaning is performed. Next, the surface of the second substrate 51 is covered with a masking material so that the plating film is formed only on the portion that will later become the elastic piece portion 43. Note that when the Cu—Sn alloy layer 52 or the like is formed on the entire surface of the second terminal 4, no masking material is required.
- a Ni plating film, a Cu plating film, and a Sn plating film are sequentially laminated on the second substrate 51 by an electroplating method. Thereafter, the second substrate 51 is subjected to a reflow process to alloy Cu and Sn. Thereby, a Cu—Sn alloy layer is formed along the uneven shape of the second substrate 51. At this time, Sn that has not been alloyed is melted by the reflow process and filled in the corresponding recesses in the Cu—Sn alloy layer 52 to form the Sn layer 53.
- a second intermediate layer 54 made of a Ni plating film is formed between the second substrate 51 and the Cu—Sn alloy layer 52. .
- the second base material 51 on which the Cu—Sn alloy layer 52 and the Sn layer 53 are formed is pressed to form the shape of the second terminal 4.
- the second terminal 4 can be obtained.
- the terminal pair 1 includes a first terminal 2 provided with a first contact part 3 and a second terminal 4 provided with a second contact part 5. And the 1st contact part 3 and the 2nd contact part 5 have the said specific structure, respectively. Therefore, compared to the case where the first contact portions 3 are slid and the case where the second contact portions 5 are slid, the friction coefficient when the first contact portion 3 and the second contact portion 5 are slid. Can be further reduced.
- the terminal pair 1 of this example can be used by being connected to, for example, a terminal portion of an electric wire constituting an automobile wire harness.
- the first terminal 2 having the composite coating layer 32 is a male terminal
- the second terminal 4 having the Cu—Sn alloy layer 52 and the Sn layer 53 is a female terminal.
- the first terminal 2 may be a female terminal and the second terminal 4 may be a male terminal.
- Example 2 This example is an example of a connector pair 10 including a terminal pair including a connector pin and a female terminal.
- the connector pair 10 includes a first connector 10a (see FIGS. 5 and 6) having a plurality of first terminals 20 having a composite coating layer 32, and a plurality of second connectors having a Cu—Sn alloy layer 52 and a Sn layer 53. It comprises a second connector (not shown) provided with terminals 4.
- the position and the number of terminals provided in each connector can be changed as appropriate according to the application.
- the first connector 10 a is configured as a PCB connector, and a plurality of first terminals 20 are disposed through the housing 6.
- the housing 6 has a substantially rectangular parallelepiped shape, and includes a bottom wall portion 61 through which the second terminal 4 passes and a side wall portion 62 erected from the outer peripheral edge portion of the bottom wall portion 61. And have.
- the second connector has a housing and a plurality of second terminals 4 disposed through the housing.
- the housing of the second connector is formed to be able to fit into the housing 6 of the first connector 10a.
- the second terminal 4 is provided at a position where the first contact portion 3 is inserted into the cylindrical body portion 42 in a state where the housings are fitted to each other.
- the second terminal 4 of this example is a female terminal having the same configuration as that of the first embodiment.
- the first terminal 20 of this example is configured as a connector pin, and has a first contact part 3 at one end and a soldering part 24 at the other end. As shown in FIG. 6, the first terminal 20 extends toward the bottom wall portion 61 with the first contact portion 3 disposed in the housing 6 as a base end. Further, the first terminal 20 penetrates the bottom wall portion 61 and protrudes outward from the housing 6, and the space between the bottom wall portion 61 and the soldering portion 24 is bent at a right angle. The soldering portion 24 is inserted into the through hole H of the printed circuit board P and connected to a circuit on the printed circuit board P by soldering.
- the first terminal 20 of this example may be manufactured using a plate material or a wire material.
- the composite coating layer 32 is formed on the first base material 31 by the same method as in Example 1 after punching, and the terminal intermediate 200 shown in FIG. 7 is manufactured.
- the terminal intermediate body 200 has a structure in which a plurality of pin portions 201 that will later become the first terminals 20 are connected by a carrier portion 202. After fixing the terminal intermediate body 200 to the housing 6 by insert molding, the first connector 10a can be obtained by separating the carrier portion 202.
- the first terminal 20 is produced by the above-described method, since the substantially entire surface of the first terminal 20 including the fracture surface 203 (see FIG. 7) formed by punching is covered with the composite coating layer 32, the first terminal 20 is formed. It is possible to prevent the base material 31 from being exposed on the surface. As a result, the first terminal 20 has excellent solder wettability, and can maintain a good electrical connection between the soldering portion 24 and the printed circuit board P over a long period of time.
- a wire can be used as the first base material 31 instead of the plate material. That is, after forming a plating film on the surface of the wire, reflow treatment is performed to form the composite coating layer 32. Thereafter, the first connector 10a can be manufactured by forming the wire into the shape of a connector pin by pressing or the like and fixing the wire to the housing 6 by insert molding. Also in this case, since the substantially entire surface of the first terminal 20 is covered with the composite coating layer 32, a good electrical connection between the soldering portion 24 and the printed board P can be maintained for a long period of time.
- the insertion force when the connector pair 10 is fitted can be further reduced.
- the effect of reducing the insertion force becomes more prominent as the number of terminals provided in each connector increases. That is, a multipolar connector having a large number of terminals requires a larger insertion force because the area of the sliding portion between the terminals is larger than that of a single-pole connector.
- the multipolar connector using the terminal pair having the above specific structure has a small coefficient of friction in each terminal pair, the frictional force associated with the sliding between the first terminal 20 and the second terminal 4 is reduced. can do. Therefore, the insertion force in the multipolar connector can be effectively reduced.
- the first terminal 20 having the composite coating layer 32 is a connector pin
- the second terminal 4 having the Cu—Sn alloy layer 52 and the Sn layer 53 is a female terminal.
- the second terminal 4 is a connector pin
- the second base material 51 is formed into a terminal shape by punching or the like in order to form the Cu—Sn alloy layer 52 and the Sn layer 53 on substantially the entire surface of the second terminal 4. After that, it is necessary to perform plating treatment.
- the first terminal 20 is a connector pin
- the composite coating layer 32 can be formed after the first base material 31 is formed into a terminal shape, such a problem can be prevented.
- ⁇ Fixed specimen> Manufacturing method
- the 1st base material 31 which consists of Cu alloy board was prepared, and pretreatments, such as degreasing washing, were performed.
- a Ni plating film having a thickness of 2.0 ⁇ m, a Pd plating film having a thickness of 20 nm, and a Sn plating film having a thickness of 1.0 ⁇ m were sequentially laminated on the first substrate 31 by electroplating.
- the reflow process heated at 300 degreeC in an atmospheric condition was given to the plating film, and the fixed test piece was obtained.
- the Pd concentration in the composite coating layer 32 in the fixed test piece of this example was calculated from the thickness of the Sn plating film and the Pd plating film, the element density, and the atomic weight before the reflow treatment. there were.
- the fixed test piece has a structure in which the Ni layer 331, the Ni—Sn alloy layer 332, and the composite coating layer 32 are sequentially laminated on the first base material 31 (see FIG. 3). did. Further, it was confirmed that the composite coating layer 32 had a sea-island structure in which the island phase composed of the Sn—Pd alloy phase 321 was dispersed in the sea phase composed of the Sn phase 322.
- the Sn phase 322 was removed from the sample by etching, and an SEM image of the sample surface after the etching was obtained.
- Sn—Pd alloy phase 321 having a substantially rectangular parallelepiped shape was dispersed on the surface from which Sn phase 322 was removed. Further, an Ni—Sn alloy layer 332 exposed by the removal of the Sn phase 322 was observed between the Sn—Pd alloy phases 321.
- the area ratio of the Sn—Pd-based alloy phase 321 was determined from the binarized image thus obtained, and the area ratio of the Sn—Pd-based particles 312 exposed on the surface of the composite coating layer 32 was 70%.
- ⁇ Moving specimen> Manufacturing method
- the plate-shaped 2nd base material 51 which consists of Cu alloy and the uneven
- a Ni plating film, a Cu plating film, and a Sn plating film were sequentially laminated on the second base material 51 by electroplating.
- the reflow process which heats a plating film was performed.
- the 2nd base material 51 was pressed and the embossed part which exhibits a hemisphere with a radius of 1 mm was formed.
- the movable test piece which has the laminated structure (refer FIG. 4) equivalent to the 2nd contact part 5 by the above was produced.
- the sample was immersed for 30 minutes in an aqueous solution in which only the Sn layer 53 prepared in advance was dissolved to expose the Cu—Sn alloy layer 52.
- the aqueous solution is obtained by dissolving 10 g of sodium hydroxide and 1 g of p-nitrophenol in 200 ml of distilled water.
- the temperature of the aqueous solution when the sample was immersed was room temperature.
- ⁇ Friction coefficient measurement> The movable test piece and the fixed test piece were superposed in the vertical direction, and the embossed portion was brought into contact with the surface of the fixed test piece. In this state, a vertical load of 3N was applied between the movable test piece and the fixed test piece by the piezoelectric actuator. Then, the movable test piece was forcibly moved in the horizontal direction at a speed of 10 mm / min while maintaining the vertical load, and the frictional force applied to the fixed test piece during the movement was measured with a load cell. The friction coefficient was calculated by dividing the obtained frictional force by the vertical load.
- FIG. 8 shows the measurement result of the friction coefficient (reference numeral E1).
- shaft of FIG. 8 is a value of a friction coefficient
- a horizontal axis is the displacement amount of a movable test piece.
- FIG. 8 shows a friction coefficient (symbol C1) when the first contact portions 3 are slid and a conventional contact portion having an Sn plating film on the surface.
- the coefficient of friction (symbol C2) when moved was shown. That is, the symbol C1 is a result of measuring a friction coefficient when a test piece in which an embossed portion is formed by pressing the fixed test piece is used as a movable test piece.
- Reference numeral C2 denotes a movable reflow test piece and a fixed test piece prepared from a conventional reflow Sn plating material, that is, a reflow treatment after forming a 1 ⁇ m thick Sn plating film on a Cu alloy plate. It is the result of measuring the friction coefficient at the time of sliding.
- the friction coefficient (symbol E1) when sliding the first contact part 3 and the second contact part 5 is the friction coefficient (symbol C1) between the first contact parts 3 and the conventional one.
- the friction coefficient (reference symbol C2) between the contact points of each of the contact points was low, and the low friction coefficient was maintained over a long period of time. From the above results, it can be understood that the terminal pair 1 having the specific structure can reduce the coefficient of friction as compared with the conventional one while maintaining a low contact resistance.
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Abstract
Description
上記第1接点部は、金属よりなる第1基材上に形成され、Sn-Pd系合金相及びSn相を有すると共に上記2種の相のうちいずれか一方の相が他方の相に分散された複合被覆層を有し、
上記第1接点部の表面には上記Sn-Pd系合金相及び上記Sn相が共存しており、
上記第2接点部は、金属よりなる第2基材上に形成されたCu-Sn合金層と、該Cu-Sn合金層の一部を覆うSn層とを有し、
上記第2接点部の表面には上記Cu-Sn合金層が露出してなるCu-Sn合金部及び上記Sn層が露出してなるSn部が共存していることを特徴とする端子対にある。
上記第1端子を備えた第1コネクタと、上記第2端子を備えた第2コネクタとを嵌合させて用いることを特徴とするコネクタ対にある。
第1端子において、端子形状を形づくる第1基材は、導電性を有する種々の金属から選択可能である。具体的には、第1基材としては、Cu、Al(アルミニウム)、Fe(鉄)、またはこれらの金属を含む合金が好適に用いられる。これらの金属材料は、導電性だけではなく、成形性やバネ性にも優れ、種々の態様の電気接点に適用可能である。第1基材の形状としては、棒状、板状等種々の形状があり、厚み等の寸法は、用途に応じて種々選択可能である。
第2端子において、端子形状を形づくる第2基材は金属材料よりなる。即ち、第2基材としては、第1基材と同様に、Cu、Al、Fe、またはこれらの金属を含む合金が好適に用いられる。
上記端子対の実施例について、図を用いて説明する。図2に示すように、端子対1は、第1端子2に設けられた第1接点部3と、第2端子4に設けられた第2接点部5とを接触させて用いるよう構成されている。図3に示すように、第1接点部3は、金属よりなる第1基材31上に形成され、Sn-Pd系合金相321及びSn相322を有すると共に上記2種の相のうちいずれか一方の相が他方の相に分散された複合被覆層32を有している。また、第1接点部3の表面30にはSn-Pd系合金相321及びSn相322が共存している。
本例において、複合被覆層32を有する第1端子2は、端子対1におけるオス型端子(図1(a)参照)を構成している。第1端子2は、電線を接続するバレル部21と、バレル部21に連なる筒状体部22と、筒状体部22に連なるタブ部23とを有している。第1端子2は略棒状を呈しており、バレル部21、筒状体部22及びタブ部23が一列に並んでいる。本例の第1端子2は、タブ部23上のみに複合被覆層32を有している。また、図2に示すように、第1接点部3はタブ部23に設けられている。
Cu-Sn合金層52及びSn層53を有する第2端子4は、端子対1におけるメス型端子(図1(b)参照)を構成している。第2端子4は略棒状を呈しており、電線を接続するバレル部41と、バレル部41に連なる筒状体部42とを有している。
本例は、コネクタピンとメス型端子とからなる端子対を備えたコネクタ対10の例である。コネクタ対10は、複合被覆層32を有する複数の第1端子20を備えた第1コネクタ10a(図5、図6参照)と、Cu-Sn合金層52及びSn層53を有する複数の第2端子4を備えた第2コネクタ(図示略)とから構成されている。なお、各コネクタに設けられた端子の位置及び個数は、用途に応じて適宜変更することができる。
本例は、第1接点部3と第2接点部5とを摺動させた際の摩擦係数を測定した例である。摩擦係数の測定には、以下の手順により作成した固定試験片及び可動試験片を用いた。なお、固定試験片及び可動試験片の形状は、実施例1における第1接点部3(タブ部23)及び第2接点部5を模擬している。
・作製方法
Cu合金板よりなる第1基材31を準備し、脱脂洗浄等の前処理を行った。次いで、電気めっき法により厚み2.0μmのNiめっき膜、厚み20nmのPdめっき膜、厚み1.0μmのSnめっき膜を第1基材31上に順次積層した。その後、大気雰囲気下にて300℃で加熱するリフロー処理をめっき膜に施し、固定試験片を得た。なお、本例の固定試験片における複合被覆層32中のPd濃度は、リフロー処理する前のSnめっき膜及びPdめっき膜の厚み、元素の密度、原子量から算出した結果、3.0原子%であった。
固定試験片から平板状の試料を切り出し、断面をSEMにより観察した。その結果、固定試験片は、第1基材31上に、Ni層331、Ni-Sn合金層332及び複合被覆層32が順次積層された構造(図3参照)を有していることを確認した。また、複合被覆層32は、Sn相322よりなる海相中にSn-Pd系合金相321よりなる島相が分散した海島構造を有していることを確認した。
固定試験片から平板状の試料を採取し、変角光沢計(スガ試験機株式会社製「UGV-6P」)を用いて表面の光沢度を測定したところ、60%であった。
・作製方法
Cu合金よりなり、予め凹凸形状513が表面に付与された板状の第2基材51を準備し、脱脂洗浄等の前処理を行った。次いで、電気めっき法により、Niめっき膜、Cuめっき膜及びSnめっき膜を第2基材51上に順次積層した。その後、めっき膜を加熱するリフロー処理を施した。その後、第2基材51にプレス加工を施し、半径1mmの半球状を呈するエンボス部を形成した。以上により、第2接点部5に相当する積層構造(図4参照)を有する可動試験片を作製した。
可動試験片の表面をSEMにより観察したところ、比較的明るく観察されるSn部530中に、Sn部530よりも暗く観察されるCu-Sn合金部520が散在していた(図示略)。また、隣り合うCu-Sn合金部520の間隔は、最小で約5μmであり、最大で約97μmであった。また、Sn層53の平均の厚み及び第2中間層54の厚みは、いずれも1μmであった。
可動試験片から平板状の試料を採取し、変角光沢計を用いて表面50の光沢度を測定したところ、350%であった。
可動試験片と固定試験片とを鉛直方向に重ね合わせ、固定試験片の表面にエンボス部を当接させた。この状態において、ピエゾアクチュエータにより可動試験片と固定試験片との間に3Nの鉛直荷重を印加した。そして、鉛直荷重を維持した状態で可動試験片を10mm/分の速度で水平方向に強制的に移動させ、移動中に固定試験片に加わる摩擦力をロードセルにより測定した。得られた摩擦力を垂直荷重で除することにより、摩擦係数を算出した。
Claims (10)
- 第1端子に設けられた第1接点部と、第2端子に設けられた第2接点部とを接触させて用いる端子対であって、
上記第1接点部は、金属よりなる第1基材上に形成され、Sn-Pd系合金相及びSn相を有すると共に上記2種の相のうちいずれか一方の相が他方の相に分散された複合被覆層を有し、
上記第1接点部の表面には上記Sn-Pd系合金相及び上記Sn相が共存しており、
上記第2接点部は、金属よりなる第2基材上に形成されたCu-Sn合金層と、該Cu-Sn合金層の一部を覆うSn層とを有し、
上記第2接点部の表面には上記Cu-Sn合金層が露出してなるCu-Sn合金部及び上記Sn層が露出してなるSn部が共存していることを特徴とする端子対。 - 上記Sn-Pd系合金相が上記Sn相中に分散している構造を有していることを特徴とする請求項1に記載の端子対。
- 上記複合被覆層中のPd含有量が7原子%以下であることを特徴とする請求項1または2に記載の端子対。
- 上記複合被覆層における上記Sn-Pd系合金相の体積比率が1.0~95.0体積%であることを特徴とする請求項1~3のいずれか1項に記載の端子対。
- 上記複合被覆層の表面に露出した上記Sn-Pd系合金相の面積比率が1.0~95%であることを特徴とする請求項1~4のいずれか1項に記載の端子対。
- 上記複合被覆層の表面における光沢度が10~300%であることを特徴とする請求項1~5のいずれか1項に記載の端子対。
- 上記第2接点部の表面は、上記Sn部中に上記Cu-Sn合金部が散在している構造を有することを特徴とする請求項1~6のいずれか1項に記載の端子対。
- 上記第2接点部の光沢度が50~1000%であることを特徴とする請求項1~7のいずれか1項に記載の端子対。
- 上記Sn層のみを溶解させて除去した状態において測定して得られる上記Cu-Sn合金層の光沢度が10~80%であることを特徴とする請求項1~8のいずれか1項に記載の端子対。
- 請求項1~9のいずれか1項に記載の端子対を備えたコネクタ対であって、
上記第1端子を備えた第1コネクタと、上記第2端子を備えた第2コネクタとを嵌合させて用いることを特徴とするコネクタ対。
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JP2016511581A JP6183543B2 (ja) | 2014-04-03 | 2015-03-25 | 端子対及び端子対を備えたコネクタ対 |
CN201580018327.4A CN106165203B (zh) | 2014-04-03 | 2015-03-25 | 端子对以及具备端子对的连接器对 |
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JP5939345B1 (ja) * | 2015-11-06 | 2016-06-22 | 株式会社オートネットワーク技術研究所 | 端子金具およびコネクタ |
JP2017195073A (ja) * | 2016-04-20 | 2017-10-26 | 株式会社オートネットワーク技術研究所 | 接続端子および接続端子対 |
TWI612743B (zh) * | 2016-12-19 | 2018-01-21 | 接線端子改良結構 | |
WO2018074255A1 (ja) * | 2016-10-20 | 2018-04-26 | 株式会社オートネットワーク技術研究所 | 接続端子および接続端子の製造方法 |
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JP6060875B2 (ja) * | 2013-11-11 | 2017-01-18 | 株式会社オートネットワーク技術研究所 | 基板用端子および基板コネクタ |
JP6361477B2 (ja) * | 2014-11-19 | 2018-07-25 | 株式会社オートネットワーク技術研究所 | コネクタ用端子 |
JP6780571B2 (ja) * | 2017-04-10 | 2020-11-04 | 住友電装株式会社 | 端子金具 |
JP7054432B2 (ja) * | 2017-07-12 | 2022-04-14 | 株式会社オートネットワーク技術研究所 | 雄端子金具及び雌端子金具 |
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USD880424S1 (en) | 2018-04-20 | 2020-04-07 | Sumitomo Wiring Systems, Ltd | Terminal metal fitting for electrical connector |
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Also Published As
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US20170033486A1 (en) | 2017-02-02 |
JP6183543B2 (ja) | 2017-08-30 |
US10177479B2 (en) | 2019-01-08 |
CN106165203A (zh) | 2016-11-23 |
JPWO2015151959A1 (ja) | 2017-04-13 |
DE112015001594T5 (de) | 2017-01-19 |
DE112015001594B4 (de) | 2021-02-04 |
CN106165203B (zh) | 2019-02-15 |
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