JP2012099398A - Electrical contact and connector terminal - Google Patents

Electrical contact and connector terminal Download PDF

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Publication number
JP2012099398A
JP2012099398A JP2010247567A JP2010247567A JP2012099398A JP 2012099398 A JP2012099398 A JP 2012099398A JP 2010247567 A JP2010247567 A JP 2010247567A JP 2010247567 A JP2010247567 A JP 2010247567A JP 2012099398 A JP2012099398 A JP 2012099398A
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Japan
Prior art keywords
contact
surface
formed
terminal
copper
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JP2010247567A
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Japanese (ja)
Inventor
Atsushi Shimizu
敦 清水
Original Assignee
Auto Network Gijutsu Kenkyusho:Kk
Sumitomo Electric Ind Ltd
Sumitomo Wiring Syst Ltd
住友電気工業株式会社
住友電装株式会社
株式会社オートネットワーク技術研究所
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Application filed by Auto Network Gijutsu Kenkyusho:Kk, Sumitomo Electric Ind Ltd, Sumitomo Wiring Syst Ltd, 住友電気工業株式会社, 住友電装株式会社, 株式会社オートネットワーク技術研究所 filed Critical Auto Network Gijutsu Kenkyusho:Kk
Priority to JP2010247567A priority Critical patent/JP2012099398A/en
Publication of JP2012099398A publication Critical patent/JP2012099398A/en
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Abstract

An object of the present invention is to suppress an increase in contact resistance resulting from sliding and maintain stable contact resistance even when a lubricant is applied to reduce contact wear during sliding. Provide electrical contacts and connector terminals.
The surface of the contact portion of one contact is made of a metal containing silver as a main component, and the surface of the contact portion of the other contact is made of a metal containing a copper gallium compound as a main component. An electrical contact formed by applying lubricating oil to at least one surface. The base material of the material constituting the contact is copper or a copper alloy. Copper gallium compound is CuGa 2. The surface of the contact portion of one terminal is formed of a metal mainly composed of silver, and the surface of the contact portion of the other terminal is formed of a metal mainly composed of a copper gallium compound. A connector terminal in which lubricating oil is applied to at least one surface of a fitting portion of the terminal.
[Selection] Figure 1

Description

  The present invention relates to an electrical contact and a connector terminal, and more particularly to an electrical contact and a connector terminal used at a place where the sliding between the contacts is intense, such as a place where vibration is intense or a place where frequent insertion and removal is performed.

  Metal fittings such as connectors, potentiometers, volume switches, etc. that have electrical contacts that are electrically energized when the contact portions of both terminals come into contact with each other by mating male and female terminals. Conventionally, an electrical contact that conducts by mechanical contact is generally plated with tin (Sn), silver (Ag), gold (Au), or an alloy containing these as a main component.

  Among these metals, Ag plating, in particular, does not produce an oxide film in the air and has high conductivity, so that stable contact can be obtained, and it is often used in places that handle large currents.

  However, when used in a place where vibration is intense, such as for a vehicle or a machine tool, it is inevitable that the contact slides violently and the surface of the contact is worn.

  Therefore, in such an electrical contact with sliding, it has long been applied to apply lubricating oil in order to reduce friction on the contact surface and reduce the generation of wear powder (for example, Patent Document 1). ~ 3).

  For example, when lubricating oil mainly composed of paraffin or the like is applied to electrical contacts in which Ags are opposed to each other, friction on the Ag surface is reduced, and the lubricating oil that is an insulator is sandwiched under an appropriate contact load. Even in a situation, it is possible to flow a current stably. This is because, in the so-called boundary lubrication state as described above, there is a partial metal contact due to fine irregularities on the contact surface, and a current flows stably using this as a conduction path.

  However, even with such an electrical contact, the contact resistance may gradually increase when sliding is repeated. This is because, by repeated sliding, adhesion peeling occurs in the partial metal contact described above, and further, this causes a new surface of Ag to be generated at the contact point, and this new surface deteriorates the lubricating oil by the catalytic action. It is considered that the generated reaction product is deposited between the contacts.

  Therefore, it was considered to use a metal such as iron (Fe) or nickel (Ni), which does not cause adhesion peeling even when contacted with Ag, as an opposing contact. Although not possible, these metals have the property of forming a strong insulating oxide film in the atmosphere. There was a problem with using as.

  It was also considered to use Sn-plated contacts that have low chemical activity and no catalysis on the new surface, but although there is no increase in contact resistance due to sliding, the softening temperature of Sn is low, so it is in use However, there is a problem in using it for a device for a large current that becomes high temperature.

Japanese Patent Publication No. 6-655 Japanese Patent Publication No. 32-2872 Japanese Utility Model Publication No. 04-111111

  In view of the above problems, the present invention can suppress an increase in contact resistance resulting from sliding even when a lubricant is applied in order to reduce the wear of contacts during sliding. It is an object of the present invention to provide an electrical contact and a connector terminal that can maintain contact resistance.

  The present inventor conducted various experiments and studies for solving the above-mentioned problems. As a result, when a copper gallium compound is selected as one of the materials of the electrical contact, the copper gallium compound does not thicken the surface oxide film even after being exposed to a high temperature in the atmosphere (for example, after heat treatment in the atmosphere at 160 ° C. for 300 hours) It was also found that the oxide film is easily broken when the contact is brought into contact, and the contact resistance can be kept low.

  When the copper gallium compound and silver were slid in contact with each other, there was no dimple pattern peculiar to the adhesion surface on the silver surface after sliding, so there was no adhesion between the two at the contact point. It was found that no increase in contact resistance was observed even when a contact lubricant (contact oil) mainly composed of alpha olefin was applied and slid.

  That is, since neither a copper gallium compound nor silver forms a thick oxide film in the atmosphere and the surface oxide film is easily destroyed when contacted, the initial contact resistance is low.

  In addition, silver and copper gallium compounds do not adhere to each other even if they are slid in contact with each other. Even if lubricating oil is applied and slid, the lubricating oil deteriorates due to the catalytic action of the new silver surface, and reaction products accumulate. There is no increase in contact resistance and there is little surface wear.

The invention according to claim 1 is an invention based on the above findings,
The surface of the contact portion of one of the contacts is formed of a metal whose main component is silver,
The surface of the contact portion of the other contact is formed from a metal whose main component is a copper gallium compound,
It is an electrical contact characterized by being formed by applying a lubricating oil to at least one surface.

The invention described in claim 2
The base material of the material constituting the contact is copper or copper alloy,
The electrical contact according to claim 1, wherein a silver layer is formed on a surface of at least a contact portion of the one contact, and a copper gallium compound layer is formed on a surface of at least the contact portion of the other contact. is there.

  Cu or Cu alloy is preferable as a base material because it has excellent conductivity and excellent moldability. In addition, when Cu or Cu alloy is used as a base material, a thin copper gallium compound layer or an Ag layer can be easily formed, while reducing the amount of expensive materials used such as gallium and Ag, Sufficient conductivity can be ensured. And as a manufacturing method of such an electrical contact, since the conventional manufacturing methods, such as a press, can be applied as it is, an increase in cost can be suppressed.

  For example, a copper gallium compound layer can be easily formed by applying molten gallium to the surface of Cu as a base material. The Ag layer can be easily formed on the surface of the base material by plating or other methods.

The invention according to claim 3
The electrical contact according to claim 1, wherein the copper gallium compound is CuGa 2 .

As the copper gallium compound, CuGa 2 , Cu 9 Ga 4, or the like is preferably used. In particular, CuGa 2 is preferable because it can be easily formed by bringing molten gallium and copper into contact with each other at room temperature.

The invention according to claim 4
The surface of the contact portion of one terminal is formed of a metal mainly composed of silver,
The surface of the contact portion of the other terminal is formed of a metal mainly composed of a copper gallium compound,
The connector terminal is characterized in that lubricating oil is applied to at least one surface of the fitting portion of the two terminals.

  Since the terminals formed of a metal mainly composed of Ag and the terminals formed of a metal mainly composed of a copper gallium compound are fitted and contacted by a fitting portion to which a lubricating oil is applied, Even when the terminals vibrate with each other or when frequent insertion / removal is repeated, an increase in contact resistance can be suppressed and surface wear can be suppressed as in the case of the electrical contacts described above. .

The invention described in claim 5
The base material of the material constituting the terminal is copper or a copper alloy,
A silver layer is formed on the surface of at least the contact portion of the one terminal,
The connector terminal according to claim 4, wherein a copper gallium compound layer is formed on a surface of at least a contact portion of the other terminal.

  As described above, Cu or Cu alloy is preferable because it is excellent in conductivity and excellent in moldability, and since a thin copper gallium compound layer or Ag layer can be easily formed, such as copper gallium or Ag. Sufficient conductivity can be ensured while reducing the amount of expensive material used.

  According to the present invention, even when a lubricant is applied to reduce contact wear during sliding, an increase in contact resistance resulting from sliding can be suppressed and stable contact resistance is maintained. Electrical contacts and connector terminals that can be provided.

It is sectional drawing which shows an example of the electrical contact of the conduction | electrical_connection state of embodiment of this invention. It is sectional drawing which shows an example of the fitting part of the connector terminal of embodiment of this invention. It is a figure which shows the relationship between the contact resistance of the electrical contact of one Example and comparative example of this invention, and the frequency | count of sliding. It is a figure which shows the sliding trace and surface element mapping of the surface of the hemispherical contact after sliding the electrical contact of one Example and comparative example of this invention 1000 times.

  Next, the present invention will be described based on embodiments with reference to the drawings.

1. Electrical contact
First, the structure and manufacturing method of the electrical contact according to the present embodiment will be described. FIG. 1 is a cross-sectional view showing an example of an electrical contact in a conductive state according to an embodiment of the present invention. The electrical contact 1 is a hemisphere in which a silver layer 3 is provided as a metal having silver as a main component (hereinafter also referred to as “Ag-based material”) on the surface of a base material 6 having a hemispherical projection as one contact. And a flat contact 4 in which a copper gallium compound layer 5 as a metal mainly composed of a copper gallium compound is provided on the surface of a flat base material 7 as the other contact. Lubricating oil L is applied to the contact portion of the flat contact 4.

  The silver layer 3 and the copper gallium compound layer 5 are respectively provided in contact portions that come into contact with the mating contacts. Specifically, the silver layer 3 is provided on the surface of the base material 6 on the protruding side, and the copper gallium compound layer 5 is provided on the surface of the base material 7 facing the base material 6. The silver layer 3 and the copper gallium compound layer 5 may be provided on the entire outer surface of the base material 6 and the base material 7, respectively.

  The electrical contact 1 may be formed by forming a copper gallium compound layer on the hemispherical contact 2 and forming a silver layer on the flat contact 4.

  For the base materials 6 and 7, Cu alone, a compound containing Cu as a main component, a Cu alloy, or the like (hereinafter referred to as “Cu-based material”) is used. Examples of components other than Cu of the compound containing Cu as a main component include, for example, Fe, silicon (Si), zinc (Zn), magnesium (Mg), Ni, chromium (Cr), cobalt (Co), and molybdenum (Mo). , Sn, phosphorus (P), aluminum (Al), and the like. Examples of the Cu alloy include phosphor bronze containing Sn and P, brass containing Zn, and the like.

  As the Ag-based material used for the silver layer 3, Ag alone, a compound containing Ag as a main component, an Ag alloy, or the like is used. Examples of components other than Ag of the compound containing Ag as a main component include selenium (Se) and antimony (Sb).

  The silver layer 3 is formed by plating or the like. The thickness of the silver layer 3 is not particularly limited, but if the thickness is less than 0.3 μm, the base material 6 may be exposed, and if it exceeds 20 μm, it takes time to form and is difficult to manufacture at a low cost. Therefore, it is preferable to form it in 0.3-20 micrometers.

For the copper gallium compound layer 5, for example, CuGa 2 and Cu 9 Ga 4 are preferably used. The copper gallium compound layer 5 made of CuGa 2 is formed, for example, by applying a liquid metal (molten metal) containing Ga onto the surface of a base material 7 made of a Cu-based material. Thereby, the copper gallium compound layer 5 can be easily formed.

  Specifically, the base material is degreased and cleaned as necessary, and the insulating film such as an oxide film on the surface is removed by polishing or acid cleaning, and then the molten metal containing Ga is brought into contact with the base material 7 for several minutes. Let

  The thickness of the copper gallium compound layer 5 is not particularly limited, but when the thickness is less than 0.3 μm, the base material may be exposed, and when it exceeds 5 μm, the contact resistance may be increased. The time during which the material is brought into contact with the molten metal becomes longer, and it becomes difficult to form a flat film. On the other hand, in the case of 0.3 to 5 μm, there is no fear that the base material 7 is exposed, and a low contact resistance can be maintained. Moreover, it is easy to form a flat film. For this reason, it is preferable to form in 0.3-5 micrometers.

  For the molten metal containing Ga, Ga alone or Ga alloy is used. When using only Ga (melting point: 29.7 ° C.), it is used after being melted by heating.

  As a Ga alloy, a metal that does not react with Cu and does not enter a base material made of a Cu-based material is used. For example, a Ga—In alloy containing indium (In), and a Ga—In—Sn alloy containing Sn Is preferably used. Thereby, the conductive film which consists of a copper gallium compound can be formed like the case where the molten metal of Ga single-piece | unit is used. Further, an alloy having a melting point of 25 ° C. or lower, preferably 10 ° C. or lower is preferably used in order to eliminate the need for heating or shorten the heating time.

  Specifically, for example, an alloy containing Ga 60 to 80% by mass, In 10 to 30% by mass, and Sn 5 to 20% by mass is preferably used, and specific examples of such an alloy include Ga 62% by mass and In 21.5% by mass. , An alloy composed of 16% by mass of Sn (melting point: 10.7 ° C.), 62% by mass of Ga, 25% by mass of In, an alloy composed of 13% by mass of Sn (10.6 ° C.), 62% by mass of Ga, 23% by mass of In, 13% by mass of Sn, Zn 2 An alloy composed of mass% (melting point: 9.8 ° C.) and the like can be mentioned.

  The method for applying the molten metal to the surface of the base material is not particularly limited. For example, a dipping method, a spin coating method, a spray method, a roller method, a printing method such as screen printing, a roll coater method, a curtain flow coater method, a brush. A coating method or the like is used.

  The time (processing time) for contacting the base material 7 and the molten metal is preferably about 1 to 15 minutes. Thereby, the copper gallium compound layer 5 can be reliably formed, and the manufacturing efficiency is also improved. Moreover, since surface unevenness | corrugation will become intense when forming at high temperature, it is preferable that processing temperature is 10-130 degreeC.

  In addition, after the above-mentioned process is completed, excess metal is removed by wiping or spraying high-pressure gas or liquid agent. In manufacturing the contact, the base material may be previously formed by pressing or the like, and then the above-described processing may be performed, or the base material may be formed into a predetermined shape after the processing.

  As the lubricating oil L, a synthetic paraffin-based lubricant such as polyalphaolefin, a fluorine-based lubricant such as a fluoroester oil, or a silicone oil-containing lubricating oil is used, and a synthetic paraffin-based lubricating oil containing no oxygen atom is particularly preferably used. The lubricating oil L is applied to the surface of one or both of the hemispherical contact 2 and the plate-like contact 4 on the copper gallium compound layer 5 side.

2. Next, the structure of the connector terminal will be described. FIG. 2 is a cross-sectional view showing an example of a fitting portion of the connector terminal of the present invention. The connector terminal 10 is provided with a male terminal 11 and a female terminal 12 at a fitting portion, and a lubricating oil L is applied to a fitting portion between both terminals. FIG. 2 shows a state in which the male terminal 11 and the female terminal 12 are brought into contact with each other in the fitted state.

  The male terminal 11 includes a protruding insertion portion 13 that is inserted into and connected to the female terminal 12 and a connection portion (not shown) to which a conductor (electric wire) is connected. The male terminal 11 has a copper gallium compound layer 11b formed on the surface of a base material 11a made of a Cu-based material, and is formed in a shape such as a plate shape or a rod-like cylindrical shape.

  The female terminal 12 includes a fitting portion 14 into which the insertion portion 13 of the male terminal 11 is inserted and a connection portion (not shown) to which a conductor (electric wire) is connected. The female terminal 12 is formed by providing a silver layer 12b on the surface of a base material 12a made of a Cu-based material. The fitting portion 14 is provided inside the outer casing 17 formed in a cylindrical shape with an open end, and is provided inside a spring piece 18 formed by folding the female terminal 12. The spring piece 18 is provided with a convex portion 20 to form a contact 15. Further, a plate-like piece 19 having a silver layer 19b formed on the surface of a base material 19a made of a Cu-based material is provided so as to face the spring piece 18, and the plate-like piece 19 faces the spring piece 18. A contact 16 is formed on the surface.

  Lubricating oil L is applied to both the upper and lower surfaces of the male terminal 11 in the drawing at the fitting portion 14.

  When the insertion portion 13 of the male terminal 11 is inserted into the fitting portion 14 of the female terminal 12, the insertion portion 13 comes into contact with the convex portion 20 of the spring piece 18, and the spring piece 18 is elastically deformed. Then, due to the repulsive force of the spring piece 18, the insertion portion 13 is pressed against the plate-like piece 19, and the insertion portion 13 and the convex portion 20 and the plate-like piece 19 of the spring piece 18 come into contact at the contact 15 and the contact 16, respectively. The male terminal 11 and the female terminal 12 are electrically connected.

  In addition, in FIG. 2, although the copper gallium compound layer 11b was formed in the male terminal 11, and the silver layer 12b was formed in the female terminal 12, the silver layer was formed in the male terminal 11, A copper gallium compound layer may be formed on the female terminal 12. In addition, both terminals are formed into a predetermined shape by pressing or the like, similar to the manufacture of the electrical contacts described above.

3. Effects of the embodiment When the copper gallium compound and Ag are contacted and slid, there is no adhesion peeling between the two at the contact point, and the contact lubricant mainly comprises polyalphaolefin on the contact surface between the two. When (contact oil) is applied and slid, contact wear is reduced, and an increase in contact resistance is suppressed. Similarly for Ag, a thick surface oxide film is not formed in the atmosphere. For this reason, adhesion peeling does not occur due to the destruction of the surface oxide film, the wear of the contact is reduced, and the initial contact resistance is kept low. Therefore, even when used in a place where vibration is intense such as a vehicle or a machine tool, wear is sufficiently suppressed, and an increase in contact resistance due to repeated sliding or being left for a long period is suppressed.

Next, an electrical contact will be taken as an example, and a specific description will be given based on examples. In this example, the surface of one contact is silver, the surface of the other contact is CuGa 2 , and an electrical contact (Ag / CuGa 2 type) in which lubricating oil is applied to the contact portion of the contact is produced. The degree of wear and the magnitude of contact resistance when sliding is repeated are compared with electrical contacts (Ag / Ag type) where both contact surfaces are silver and lubricant is applied to the contact portions of the contacts. This is an example.

[1] Production of electrical contact First, production of an electrical contact will be described.

(Example)
(1) Production of flat contact A copper plate was used as a base material. First, the surface of the copper plate was degreased and washed, and then immersed in molten Ga heated to 100 ° C. for about 1 minute. After pulling up from the molten Ga, Ga adhering to the surface was wiped off and further acid cleaning was performed to completely remove the surface Ga.

Next, measurements such as X-ray diffraction and EPMA were performed to confirm that a CuGa 2 layer having a thickness of 2 μm was formed on the surface, and one contact (electrode) was obtained.

(2) Production of hemispherical contacts A silver layer having a thickness of 2 μm was formed on a copper plate by ordinary electroplating. Next, press work was performed so that the silver layer side protruded, and a hemispherical convex portion with a radius of 1 mm was formed, and the other contact (electrode) was formed.

(3) Application of lubricating oil Next, the above-mentioned contacts are made to face each other, and a lubricating oil for contact (contact oil) (manufactured by Tetra Co., Ltd., C-9300) is applied thinly on the flat contact. Then, an Ag / CuGa 2 type electrical contact was produced.

(Comparative example)
Lubricating oil for contact is applied in the same way as in Example except that Ag / Ag type electrical contact using contact with silver layer formed on both of the two contacts (hemispherical contact and flat contact) An electrical contact was made.

[2] Evaluation of electrical contacts (1) Evaluation method a. Sliding test In the air, a load of 1 N was applied to the electrical contacts of the example and the comparative example, and slid 1000 times with an amplitude of 80 μm.

B. Contact resistance measurement During the sliding test, the contact resistance was measured by measuring the electrical resistance between both contacts (electrodes).

C. Evaluation of wear After the sliding test was completed, the surface of the hemispherical contact was observed visually, by SEM and EDS (energy dispersive X-ray spectroscopy), and the surface of the CuGa 2 plate contact was observed visually and by SEM. The degree of wear was evaluated.

(2) Evaluation results a. Contact Resistance The measurement results of contact resistance are shown in FIG. FIG. 3A shows the measurement results of the example, and FIG. 3B shows the measurement results of the comparative example. FIG. 3A shows that in the case of the example, the contact resistance is maintained at a low value throughout the sliding test from the initial stage and is stable. On the other hand, from FIG. 3B, in the case of the comparative example, the initial contact resistance is low, but the contact resistance starts to increase after about 200 times, and when it exceeds 900 times, the initial contact resistance is 10 times or more. As it rises, it can be seen that it fluctuates greatly. In the case of the comparative example, it is considered that the viscosity of the lubricating oil increased due to oxidation and the contact resistance increased.

B. FIG. 4 shows an SEM image and surface element mapping of the surface of the hemispherical contact after the end of the sliding test in Examples and Comparative Examples. 4A is a diagram showing the measurement results of the example, and FIG. 4B is a diagram showing the measurement results of the comparative example. One sheet on the left side of the figure is an SEM image, and two sheets on the right side show mapping of Cu and Ag, respectively. FIG. From the observation result by visual observation and the SEM image shown in FIG. 4, in the case of an example, that is, an Ag / CuGa 2 type electrical contact, the surface of CuGa 2 of the flat contact is not confirmed to be transferred or worn of Ag. The surface of the hemispherical contact remained covered with silver. On the other hand, in the case of the comparative example, that is, the Ag / Ag type electrical contact, the surface sliding trace of the hemispherical contact was recognized, and it was found that adhesion occurred.

  In addition, from the mapping of Cu and Ag obtained by observation of the surface of the hemispherical terminal by EDS, the presence of Cu is not recognized in the examples, whereas in the comparative example, the base material Cu is exposed, and Ag is Since there is a missing part, it was found that the degree of wear was large in the comparative example. And in the case of a comparative example, since Ag adhesion wear occurs and a new surface of Ag is generated during sliding, it is considered that oxidation of the lubricating oil progressed as described above due to its catalytic action.

  As described above, according to this embodiment, the electrical contact of the present invention sufficiently suppresses the wear of the contact, has a low initial contact resistance, and does not increase even when repeatedly slid. Confirmed to be stable. As for the connector terminals, good characteristics such as wear and contact resistance can be obtained as in the case of electrical contacts.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to said embodiment. Various modifications can be made to the above-described embodiment within the same and equivalent scope as the present invention.

DESCRIPTION OF SYMBOLS 1 Electrical contact 2 Hemispherical contact 3, 12b, 19b Silver layer 4 Flat contact 5, 11b Copper gallium compound layer 6, 7, 11a, 12a, 19a Base material 10 Connector terminal 11 Male terminal 12 Female terminal 13 Insertion part 14 fitting part 15, 16 contact 17 exterior body 18 spring piece 19 plate-like piece 20 convex part L lubricating oil

Claims (5)

  1. The surface of the contact portion of one of the contacts is formed of a metal whose main component is silver,
    The surface of the contact portion of the other contact is formed from a metal whose main component is a copper gallium compound,
    An electrical contact formed by applying a lubricating oil to at least one surface.
  2. The base material of the material constituting the contact is copper or copper alloy,
    The electrical contact according to claim 1, wherein a silver layer is formed on a surface of at least a contact portion of the one contact, and a copper gallium compound layer is formed on a surface of at least the contact portion of the other contact.
  3. The electrical contact according to claim 1, wherein the copper gallium compound is CuGa 2 .
  4. The surface of the contact portion of one terminal is formed of a metal mainly composed of silver,
    The surface of the contact portion of the other terminal is formed of a metal mainly composed of a copper gallium compound,
    A connector terminal, wherein a lubricating oil is applied to at least one surface of a fitting portion of two terminals.
  5. The base material of the material constituting the terminal is copper or a copper alloy,
    A silver layer is formed on the surface of at least the contact portion of the one terminal,
    The connector terminal according to claim 4, wherein a copper gallium compound layer is formed on a surface of at least a contact portion of the other terminal.
JP2010247567A 2010-11-04 2010-11-04 Electrical contact and connector terminal Pending JP2012099398A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013207219A1 (en) 2012-04-25 2013-10-31 Hitachi Automotive Systems, Ltd. Electronic control device
RU2537687C1 (en) * 2013-12-16 2015-01-10 Денис Анатольевич Романов Method for application of erosion-resistant coatings based on carbonaceous molybdenum, molybdenum and copper to copper electric contacts
RU2546940C1 (en) * 2013-12-16 2015-04-10 Денис Анатольевич Романов Method for application of electroerosion-resistant coatings based on carbonaceous wolfram, wolfram and copper to copper electric contacts
JP2015198045A (en) * 2014-04-02 2015-11-09 株式会社オートネットワーク技術研究所 Terminal metal fitting, and method of manufacturing the same
EP3089277A4 (en) * 2013-12-27 2017-08-23 Hitachi Automotive Systems, Ltd. In-vehicle electronic module

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013207219A1 (en) 2012-04-25 2013-10-31 Hitachi Automotive Systems, Ltd. Electronic control device
RU2537687C1 (en) * 2013-12-16 2015-01-10 Денис Анатольевич Романов Method for application of erosion-resistant coatings based on carbonaceous molybdenum, molybdenum and copper to copper electric contacts
RU2546940C1 (en) * 2013-12-16 2015-04-10 Денис Анатольевич Романов Method for application of electroerosion-resistant coatings based on carbonaceous wolfram, wolfram and copper to copper electric contacts
EP3089277A4 (en) * 2013-12-27 2017-08-23 Hitachi Automotive Systems, Ltd. In-vehicle electronic module
JP2015198045A (en) * 2014-04-02 2015-11-09 株式会社オートネットワーク技術研究所 Terminal metal fitting, and method of manufacturing the same

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