WO2015019424A1 - Point de contact électrique et élément de contact - Google Patents

Point de contact électrique et élément de contact Download PDF

Info

Publication number
WO2015019424A1
WO2015019424A1 PCT/JP2013/071286 JP2013071286W WO2015019424A1 WO 2015019424 A1 WO2015019424 A1 WO 2015019424A1 JP 2013071286 W JP2013071286 W JP 2013071286W WO 2015019424 A1 WO2015019424 A1 WO 2015019424A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
electrical contact
erosion
contact point
functional layer
Prior art date
Application number
PCT/JP2013/071286
Other languages
English (en)
Japanese (ja)
Inventor
英生 汲田
慎也 眞々田
陽介 石澤
有祐 内田
Original Assignee
株式会社徳力本店
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社徳力本店 filed Critical 株式会社徳力本店
Priority to KR1020167003782A priority Critical patent/KR20160040585A/ko
Priority to CN201380078806.6A priority patent/CN105453206B/zh
Priority to JP2015530589A priority patent/JP5992625B2/ja
Priority to PCT/JP2013/071286 priority patent/WO2015019424A1/fr
Publication of WO2015019424A1 publication Critical patent/WO2015019424A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0231—Composite material having a noble metal as the basic material provided with a solder layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
    • H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/025—Composite material having copper as the basic material

Definitions

  • the present invention relates to an electrical contact and a contact that can be used in a contact control device such as a breaker or a magnet switch.
  • the electrical contact material is required to have a longer life than before, and an improvement in wear resistance performance is expected, but it is difficult to realize it.
  • chattering phenomenon occurs, the number of arcs generated between the electrical contacts increases, and there is a problem that the amount of consumption of the electrical contact material increases. Further, when the chattering duration is long, the electrical contact material is likely to be welded. Therefore, it is desired to shorten the chattering duration as much as possible.
  • pure silver is laminated on one side of a silver oxide based electrical contact material such as Ag—SnO 2 —In 2 O 3.
  • a pure silver surface is laminated on one side of a silver oxide based electrical contact material such as Ag—SnO 2 —In 2 O 3.
  • a pure silver surface is used as a joint surface with a base material of a contact (for example, Patent Document 1).
  • the pure silver layer repeats the opening and closing times in the electrical life test. As a result, it may become a starting point of peeling wear, and as a result, contact wear may increase.
  • the present invention focuses on the depletion consumption in the vicinity of the joint between the contact material of the electrical contact material and the contact member among the consumption forms of the electrical contact, and the pure silver layer on one side of the electrical contact material in which the delamination consumption easily proceeds. Occurred when a functional layer made of copper or copper alloy with excellent electrical conductivity, thermal conductivity, and bonding strength with silver is laminated on the surface, and the electrical contact material is exposed to electrical switching on the functional layer The amount of electrical contact material consumed can be reduced by undertaking a function to transfer heat to the contact base material and a function to prevent peeling wear by maintaining the bonding strength between the electrical contact material and the contact base material. It is an object of the present invention to provide an electrical contact and a contact that can be reduced and improve wear resistance.
  • the copper alloy used for the base material of the contact that requires high mechanical strength due to the high switching frequency is that the contact base is made of copper when the silver surface of the electrical contact material is joined to the base of the contact.
  • the bonding strength is lower than that of
  • the contact strength while maintaining the bonding strength between the electrical contact and the contact base material is maintained.
  • the mechanical strength of the child base material can be maintained.
  • the functional layer is made thicker, and the electrical contact is configured using copper or a copper alloy that is softer than the base material of the electrical contact and the contactor for the functional layer. It is an object of the present invention to provide an electrical contact and a contact that can absorb the impact of time in a functional layer to shorten chattering duration and reduce the amount of consumption of the electrical contact.
  • the chattering duration time can be shortened by arranging soft copper for the functional layer and hard copper for the base material of the contact that requires mechanical strength.
  • the function of the copper or copper alloy having excellent conductivity, thermal conductivity, and bonding strength with silver on the surface of the pure silver layer on one side of the electrical contact that is likely to undergo delamination Layers are bonded together, and the copper or copper alloy layer has a function to transfer heat generated when the electrical contacts are exposed to electrical switching to the base, a function to shorten chattering duration, and a contact base. It is possible to reduce the consumption of electrical contacts by undertaking a function to prevent delamination wear by maintaining the bonding strength.
  • the electrical contacts and contacts thus obtained were able to improve the wear resistance performance by up to about 20% compared to conventional electrical contacts when conducting an electrical life test.
  • the gap between the contacts changes each time the shape of the electrical contact material, such as the thickness, is redesigned to reduce the amount of precious metal used. Therefore, there has been a problem that the design of the switchgear itself needs to be changed.
  • the thickness of the electrical contact material can be reduced without changing the thickness of the electrical contact by using the electrical contact having the functional layer of the present invention, the gap between the contacts is not changed, and the switching device itself There is no need to change the design. As a result, the cost of changing various specifications is reduced, and an inexpensive switchgear can be provided.
  • the electrical contact having the functional layer of the present invention can be applied to a base material for a contact of any shape or copper-based material.
  • Examples of the present invention and conventional examples are shown in Table 1, and the processing steps of these electrical contact materials 1 will be described.
  • the electrical contact type No The percentage of pure silver layer and the percentage of functional layer (%) of each electrical contact, after AC3 class test of each electrical contact (according to JIS C 8201-3 and JIS C 8201-4-1) The amount of consumption (%) is shown in Table 1.
  • a silver alloy material having a composition of 91 Ag-5.8Sn-3In-0.2Ni in mass% is produced by a melting method, and rolling and annealing are repeated to obtain a desired plate.
  • a silver alloy such as an Ag—Ni alloy or an Ag—W alloy used as an electrical contact material, or a silver oxide electrical contact material that is subjected to an internal oxidation treatment in a later step. Any silver alloy material may be used.
  • the bonding strength with the functional layer is not preferable, and when it exceeds 30% of the electric contact layer thickness, the bonding strength is increased even if the pure silver layer is thickened. Is not preferable because the amount of noble metal used increases and the material price increases.
  • a 10 mm square rectangular composite material is obtained by press punching.
  • the 10 mm square composite material thus obtained was subjected to barrel polishing and internal oxidation treatment, and bonded to oxygen free Cu (Vickers hardness 74) of 10 mm square and 1 to 50% of the total thickness of the electrical contact to become the functional layer 3.
  • electrical contact 4 was obtained.
  • the functional layer 3 is less than 1% of the electric contact layer thickness, the effect of shortening the contact strength of the contactor with the base material and the chattering continuation time is not significantly observed. If it exceeds 50%, the electrical contact material becomes thin instead of increasing the thickness of the functional layer, which is not preferable because the life of the electrical contact material itself is shortened.
  • the copper or copper alloy used for the functional layer 3 may be any copper or copper alloy as long as it is softer than the silver oxide-based electrical contact material 1 and the contact base 5.
  • the electrical contact 4 thus obtained was brazed to a contact base 5 made of oxygen-free Cu (Vickers hardness 110) to form a contact (FIG. 1) (electric contact type No. 1). ⁇ 5).
  • a contact (FIG. 1) was obtained in the same manner as in Example 1 except that the functional layer 3 and the base material 5 of the contact were replaced with a Cu alloy made of 97Cu-2.6Fe-0.15P-0.25Zn. Contact type No. 6 to 10). In addition, the Vickers hardness of the functional layer was 94, and the Vickers hardness of the contact material was 140.
  • the composite material of 10 mm ⁇ thus obtained is subjected to barrel polishing and internal oxidation treatment, and is made of oxygen-free Cu (Vickers hardness 74) of 10 mm ⁇ to be the functional layer 3 and 1 to 50% of the total thickness of the electrical contacts. After joining to the composite material, it was brazed and joined to a rivet-shaped base material 6 made of oxygen-free Cu (Vickers hardness 110) to form an electrical contact (FIG. 2).
  • the electrical contact 4 made in this manner was squeezed and joined with a base 5 of a contact made of oxygen-free Cu (Vickers hardness 110) to form a contact (FIG. 3). No. 11 to 15).
  • Example 3 In the same manner as in Example 3 except that the functional layer 3, the rivet-shaped base 6 and the contact base 5 were replaced with a Cu alloy made of 97Cu-2.6Fe-0.15P-0.25Zn. 3) (electrical contact types No. 16 to 20).
  • the Vickers hardness of the functional layer was 94, and the Vickers hardness of the rivet-shaped base material and the contact material was 140.
  • Example 1 From the composite material obtained in the same manner as in Example 1, a 10 mm square rectangular composite material is obtained by press punching. The composite material thus obtained is subjected to barrel polishing and internal oxidation treatment to form an electrical contact, and then brazed to a contact base made of oxygen-free Cu (Vickers hardness 110), and the presence or absence of a functional layer. Except for the above, contactors similar to those in Example 1 were produced (electrical contact types Nos. 21 to 22).
  • Table 1 shows the results of actual device evaluation on wear resistance performance by mounting the contacts produced in Examples 1 to 4 and Conventional Examples 1 to 4 on a magnet switch rated at 80A.
  • the AC3 class test (440V, 80A) as defined in JIS C 8201 is to be performed, and the number of opening and closing is to be performed up to 1 million times.
  • Example 1 A similar test was performed by replacing only the base material 5 of the contact of Example 1 with a Cu alloy (Vickers hardness 140) of 97Cu-2.6Fe-0.15P-0.25Zn. It was equivalent to Example 1.
  • Example 3 A similar test was conducted by replacing the rivet-shaped base 6 and the contact base 5 of Example 3 with 97Cu-2.6Fe-0.15P-0.25Zn Cu alloy (Vickers hardness 140). However, the amount of consumption was the same as in Example 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Contacts (AREA)

Abstract

[Problème] Une corne de garde, ou analogue, servant à guider un arc survenant lors de l'ouverture/fermeture d'un contact électrique pour ainsi prévenir une érosion du point de contact ou d'un matériau de support, ou une partie saillante du matériau de support placée au niveau d'une partie d'extrémité du point de contact dans la direction dans laquelle l'arc est conduit pour ainsi rendre le point de contact difficile à fondre, sont des moyens connus dans l'état antérieur de la technique pour prévenir le décollement et l'érosion. Toutefois, étant donné que ces procédés ne sont réalisables que s'il est possible d'obtenir un espace suffisant pour une chambre d'extinction d'arc, ou s'il est possible d'obtenir des dimensions suffisantes du matériau de support, ces procédés ne peuvent pas nécessairement être adoptés si la taille d'un dispositif doit être réduite. [Solution] La présente invention est caractérisée en ce qu'un point de contact électrique et un élément de contact possédant une résistance à l'érosion améliorée sont réalisés par une réduction du niveau d'érosion au niveau du point de contact électrique, consistant à coller, sur la surface d'une couche d'argent pur au dos d'un point de contact là où le décollement et l'érosion progressent rapidement, du cuivre ou un alliage de cuivre possédant d'excellentes propriétés de conductivité électrique, de conductivité thermique et de résistance mécanique à titre de couche fonctionnelle, ce qui permet de conférer à la couche fonctionnelle une fonction de transmission, à un matériau de support, de la chaleur générée lors de l'ouverture/fermeture du contact électrique, une fonction de raccourcissement de la durée de vibration, et une fonction de prévention de décollement et d'érosion, ou analogue, par maintien de la force de la liaison au matériau de support.
PCT/JP2013/071286 2013-08-06 2013-08-06 Point de contact électrique et élément de contact WO2015019424A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020167003782A KR20160040585A (ko) 2013-08-06 2013-08-06 전기 접점 및 접촉자
CN201380078806.6A CN105453206B (zh) 2013-08-06 2013-08-06 电触点和触头
JP2015530589A JP5992625B2 (ja) 2013-08-06 2013-08-06 接触子
PCT/JP2013/071286 WO2015019424A1 (fr) 2013-08-06 2013-08-06 Point de contact électrique et élément de contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/071286 WO2015019424A1 (fr) 2013-08-06 2013-08-06 Point de contact électrique et élément de contact

Publications (1)

Publication Number Publication Date
WO2015019424A1 true WO2015019424A1 (fr) 2015-02-12

Family

ID=52460796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/071286 WO2015019424A1 (fr) 2013-08-06 2013-08-06 Point de contact électrique et élément de contact

Country Status (4)

Country Link
JP (1) JP5992625B2 (fr)
KR (1) KR20160040585A (fr)
CN (1) CN105453206B (fr)
WO (1) WO2015019424A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102313183B1 (ko) * 2017-03-08 2021-10-14 엘에스오토모티브테크놀로지스 주식회사 차량용 파워윈도우 스위치 유닛의 마이크로 스위치 및 이를 갖는 차량용 파워윈도우 스위치 유닛
JP6580290B1 (ja) * 2018-11-30 2019-09-25 三菱電機株式会社 電気接触子およびその製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02179369A (ja) * 1988-12-29 1990-07-12 Tokuriki Honten Co Ltd Ａｇ―酸化物系複合接点材料およびその製造方法
JPH03110724A (ja) * 1989-09-25 1991-05-10 Tokuriki Honten Co Ltd 電気接点用複合材料

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885224A (ja) * 1981-11-16 1983-05-21 株式会社安川電機 リ−ドスイツチ
DE10318223A1 (de) * 2003-04-22 2004-12-02 Louis Renner Gmbh Kontaktstück aus Wolfram mit einer korrosionshemmenden Schicht aus Unedelmetall
JP4728571B2 (ja) * 2003-10-31 2011-07-20 古河電気工業株式会社 可動接点用銀被覆ステンレス条の製造方法
CN101562081B (zh) * 2008-04-18 2012-03-21 佛山通宝精密合金股份有限公司 一种节银型层状复合触头片件的制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02179369A (ja) * 1988-12-29 1990-07-12 Tokuriki Honten Co Ltd Ａｇ―酸化物系複合接点材料およびその製造方法
JPH03110724A (ja) * 1989-09-25 1991-05-10 Tokuriki Honten Co Ltd 電気接点用複合材料

Also Published As

Publication number Publication date
JP5992625B2 (ja) 2016-09-14
JPWO2015019424A1 (ja) 2017-03-02
CN105453206B (zh) 2018-07-10
CN105453206A (zh) 2016-03-30
KR20160040585A (ko) 2016-04-14

Similar Documents

Publication Publication Date Title
EP1345243B1 (fr) Structure de contacts pour la rupture en charge de courant continu et le mécanisme de commutation associé
CN103035419A (zh) 银/铜基复合触头材料
JPWO2009041246A1 (ja) 接点部材の製造方法、接点部材および開閉器
JP6926732B2 (ja) ガス密閉型電磁接触器
TWI505304B (zh) 鉚釘形接點及其製造方法
WO2011045943A1 (fr) Contact électrique pour relais et son procédé de fabrication
WO2016045460A1 (fr) Interrupteur à lames magnétiques pour courants forts
WO2015019424A1 (fr) Point de contact électrique et élément de contact
US20190280402A1 (en) Tape-shaped contact member and method for manufacturing same
JP6447475B2 (ja) 接点部材、摺動接点、電気機器、および接点部材の製造方法
JP2016219431A (ja) 接触子
CN102237205A (zh) 一种合金铜铜嵌复银汽车电器材料及其制造方法
CN101924312A (zh) 添加碱金属的含稀土银基滑动电接触材料
JP6753022B2 (ja) 電気接点および接触子
JP3956841B2 (ja) 電気接点材料およびそれを用いた操作スイッチ
JP2003263932A (ja) 接点構成および該構成を有した開閉器
TWI478190B (zh) 銀不鏽鋼電氣接點材料
JP4084298B2 (ja) 耐アーク性に優れた電気接点用材料
EP3803927B1 (fr) Procédé d'adhésion des contacts sur des conducteurs en aluminium dans un dispositif de commutation électromécanique
JP2010251079A (ja) 開閉器
JP2014077173A (ja) 開閉装置用通電部材およびその形成方法
JP6753023B2 (ja) 電気接点の製造方法
KR20170022347A (ko) 전기 접점
JP2012043644A (ja) 電磁接触器の接点構造
RU2002126596A (ru) Слоистый электрический контакт

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201380078806.6

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13890928

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2015530589

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20167003782

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 13890928

Country of ref document: EP

Kind code of ref document: A1