Material for sliding contacts, clad composite material and small-sized DC motor using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-015/04
B32B-015/20
C22C-005/06
C22C-005/08
H01H-001/0237
H01H-001/02
출원번호
US-0989554
(2004-11-17)
우선권정보
JP-2003-395181(2003-11-26)
발명자
/ 주소
Nakamura,Keiji
Hashimoto,Yasuhiro
Takahashi,Masahiro
Kubota,Shuichi
Asada,Takao
Yamamoto,Toshiya
출원인 / 주소
Mabuchi Motor Co., Ltd.
Tanaka Kikinzoku kogyo K.K.
대리인 / 주소
Rothwell, Figg, Ernst & Manbeck, P.C.
인용정보
피인용 횟수 :
3인용 특허 :
1
초록▼
The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essentially of 0.01 to 3.0% Ni by weight
The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight and/or 0.01 to 3. 0% MgO by weight, furthermore, in some cases, 0.01 to 5.0% Cu by weight, and the balance Ag, in which Ni metal particles, ZnO particles or MgO particles are dispersed in the matrix of Ag.
대표청구항▼
What is claimed is: 1. A material for sliding contacts used as a commutator of a small-sized DC motor, wherein said material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight, and the balance Ag, and the balance Ag, and wherein Ni metal particles and
What is claimed is: 1. A material for sliding contacts used as a commutator of a small-sized DC motor, wherein said material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight, and the balance Ag, and the balance Ag, and wherein Ni metal particles and ZnO particles are dispersed in a matrix of an AgCu alloy. 2. A clad composite material in which the material for sliding contacts according to claim 1 is embedded in part of a base material of Cu or a Cu alloy. 3. A small-sized DC motor that uses the clad composite material according to claim 2 as a commutator. 4. A clad composite material in which the material for sliding contacts according to claim 1 is embedded in part of a base material of Cu or a Cu alloy, at least part of the embedded material for sliding contacts being coated with Au or an Au alloy. 5. A small-sized DC motor that uses the clad composite material according to claim 4 as a commutator. 6. A material for sliding contacts used as a commutator of a small-sized DC motor, wherein said material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 3.0% MgO by weight, 0. 01 to 5.0% Cu by weight, and the balance Ag, and wherein Ni metal particles and MgO particles are dispersed in a matrix of an AgCu alloy. 7. A clad composite material in which the material for sliding contacts according to claim 6 is embedded in part of a base material of Cu or a Cu alloy. 8. A small-sized DC motor that uses the clad composite material according to claim 7 as a commutator. 9. A clad composite material in which the material for sliding contacts according to claim 6 is embedded in part of a base material of Cu or a Cu alloy, at least part of the embedded material for sliding contacts being coated with Au or an Au alloy. 10. A small-sized DC motor that uses the clad composite material according to claim 9 as a commutator. 11. A material for sliding contacts used as a commutator of a small-sized DC motor, wherein said material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight, 0. 01 to 3.0% MgO by weight, 0.01 to 5.0% Cu by weight, and the balance Ag, and wherein Ni metal particles, ZnO particles and MgO particles are dispersed in a matrix of an AgCu alloy. 12. A clad composite material in which the material for sliding contacts according to claim 11 is embedded in part of a base material of Cu or a Cu alloy. 13. A small-sized DC motor that uses the clad composite material according to claim 12 as a commutator. 14. A clad composite material in which the material for sliding contacts according to claim 11 is embedded in part of a base material of Cu or a Cu alloy, at least part of the embedded material for sliding contacts being coated with Au or an Au alloy. 15. A small-sized DC motor that uses the clad composite material according to claim 14 as a commutator. 16. A clad composite material comprising material for sliding contacts in which the material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight, and the balance Ag, wherein Ni metal particles and ZnO particles are dispersed in a matrix of Ag which is embedded in part of a base material of Cu or a Cu alloy. 17. A small-sized DC motor that uses the clad composite material according to claim 16 as a commutator. 18. A clad composite material comprising material for sliding contacts in which the material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight, and the balance Ag, wherein Ni metal particles and ZnO particles are dispersed in a matrix of Ag which is embedded in part of a base material of Cu or a Cu alloy, wherein at least part of the embedded material for sliding contacts is coated with Au or an Au alloy. 19. A small-sized DC motor that uses the clad composite material according to claim 18 as a commutator. 20. A clad composite material comprising material for sliding contacts, in which the material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 3.0% MgO by weight, and the balance AG, wherein Ni metal particles and MgO particles are dispersed in a matrix of Ag which is embedded in part of a base material of Cu or a Cu alloy. 21. A small-sized DC motor that uses the clad composite material according to claim 20 as a commutator. 22. A clad composite material comprising material for sliding contacts, in which the material for sliding contacts consists essentially of 0.01 to 3.0% Ni by weight. 0.01 to 3.0% MgO by weight, and the balance Ag, wherein Ni metal particles and MgO particles are dispersed in a matrix of AG which is embedded in part of a base material of Cu or a Cu alloy, wherein at least part of the embedded material for sliding contacts is coated with Au or an Au alloy. 23. A small-sized DC motor that uses the clad composite material according to claim 22 as a commutator.
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