JPS59177340A - Sliding contact material - Google Patents
Sliding contact materialInfo
- Publication number
- JPS59177340A JPS59177340A JP58052066A JP5206683A JPS59177340A JP S59177340 A JPS59177340 A JP S59177340A JP 58052066 A JP58052066 A JP 58052066A JP 5206683 A JP5206683 A JP 5206683A JP S59177340 A JPS59177340 A JP S59177340A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- commutator
- contact material
- resistance
- sliding contact
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Contacts (AREA)
- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、摺動接点材料の改良に関する。[Detailed description of the invention] The present invention relates to improvements in sliding contact materials.
従来より摺動接点材料の一つとして導電性の優れたAg
−Cu合金が用いられてきたが、Ag−Cu合金は潤滑
性が低く耐摩耗性に劣るので、このAg−Cu合金で小
型モータの整流子の外周の接点片を製作して使用した場
合には刷子接点との接触により摩耗粉が生じ、ノイズ発
生の原因となり、また刷子接点との接触抵抗も変化し、
整流子の回転速度が大きくばらついて不安定なものとな
っていた。Ag, which has excellent conductivity, has traditionally been used as a sliding contact material.
-Cu alloy has been used, but since Ag-Cu alloy has low lubricity and poor wear resistance, if this Ag-Cu alloy is used to manufacture and use contact pieces around the commutator of a small motor. Contact with the brush contact generates abrasion powder, which causes noise, and also changes the contact resistance with the brush contact.
The rotational speed of the commutator varied widely and became unstable.
本発明ばかがる欠点を解消すべくなされたものであり、
Ag−Cu合金の潤滑性を高め耐摩耗性を向上させると
共に接触抵抗を低く安定させ整流子の回転数のばらつき
を少なくして安定させた摺動接点材料を提供せんとする
ものである。The present invention has been made in order to eliminate the disadvantages of the present invention.
It is an object of the present invention to provide a sliding contact material that improves the lubricity of an Ag-Cu alloy and improves its wear resistance, and also has a low and stable contact resistance, and reduces and stabilizes variations in the rotational speed of a commutator.
本発明の摺動接点材料は、Ag中に、Znを0.5〜6
重量%、Cdを0.5〜3重量%添加して成るものであ
る。The sliding contact material of the present invention contains 0.5 to 6 Zn in Ag.
Cd is added in an amount of 0.5 to 3% by weight.
かかる本発明の摺動接点材料に於いて、Ag中にZn及
びCdをそれぞれ添加するのは、Agの潤滑性及び耐ア
ーク性を向上させる為で、下限未満ではその効果が現わ
れず、上限を超えると、Znに於いては、硬くなり過ぎ
て対抗する接点材料の摩耗が激しくなり、Cdに於いて
は接触抵抗が高くなるものである。In the sliding contact material of the present invention, Zn and Cd are respectively added to Ag in order to improve the lubricity and arc resistance of Ag. If it exceeds this, in the case of Zn, it becomes too hard and the opposing contact material becomes severely worn, and in the case of Cd, the contact resistance becomes high.
次に本発明による摺動接点材料と従来の摺動接点材料に
て作った小型モータの整流子の接点片について説明する
。Next, a contact piece for a commutator of a small motor made of a sliding contact material according to the present invention and a conventional sliding contact material will be explained.
後記の表の右欄に示す成分組成の本発明の実施例である
摺動接点材料と従来例の摺動接点材料にて、厚さ 0.
2fiの接点片を作り、この接点片を図面に示す如く外
周に3枚備えた直径6霧菖、長さ9鶴の整流子1の外周
面の上下に、A u −A g −Cu−ptより成る
直径0.25mm、長さ10aiの3本の刷子線材2を
有する刷子接点3を相対向するように摺接させて、後記
の試験条件にて整流子1の回転試験を行い、接点片1a
の摩耗深さと整流子■の回転数のばらつきを測定した処
、後記の表の右欄に示すような結果を得た。試験条件
型 圧 :12■
電 流 :DC60mA
整流子の回転数 : 280Orpm
整流子の回転時間: 500時間
刷子接点の接触カニ5g/3本
前記の表で明らかなように従来例の接点片の摩耗深さは
3〜5.577であったのに対し、実施例の接点片の摩
耗深さは2〜3μで著しく減少していて耐摩耗性に優れ
ていることが判る。また従来例の接点片を有する整流子
の回転数のばらつきは7.5〜10%であったのに対し
、実施例の接点片を有する整流子の回転数のばらつきは
3〜4%で著しく減少していることが判る。The sliding contact material according to the embodiment of the present invention and the conventional sliding contact material having the compositions shown in the right column of the table below have a thickness of 0.
2fi contact pieces were made, and these contact pieces were attached to the top and bottom of the outer circumferential surface of a commutator 1 with a diameter of 6 iris and a length of 9 iris, which had three contact pieces on the outer periphery as shown in the drawing. A rotation test was conducted on the commutator 1 under the test conditions described below, with brush contacts 3 having three brush wires 2 each having a diameter of 0.25 mm and a length of 10 ai being brought into sliding contact so as to face each other. 1a
When we measured the wear depth of the commutator (2) and the variation in the rotational speed of the commutator (2), we obtained the results shown in the right column of the table below. Test condition type Pressure: 12 ■ Current: DC 60mA Commutator rotation speed: 280 Orpm Commutator rotation time: 500 hours Brush contact contact crab 5g/3 pieces As is clear from the table above, the wear of the contact piece of the conventional example The depth was 3 to 5.577 μm, whereas the wear depth of the contact piece of the example was 2 to 3 μm, which was significantly reduced, indicating that the contact piece had excellent wear resistance. Furthermore, while the variation in rotational speed of the commutator with the contact piece of the conventional example was 7.5 to 10%, the variation of the rotational speed of the commutator with the contact piece of the example was 3 to 4%, which was significant. It can be seen that it is decreasing.
以上詳記した通り本発明の摺動接点材料は、潤滑性が高
(耐摩耗性に優れているので、これにより作った小型モ
ータの整流子の接点片は刷子接点との摺動時摩耗粉の発
生が極めて少なく、従ってノイズが発生することがなく
、接触抵抗が低く安定しているので、小型のモータの整
流子の回転数のばらつきが大幅に減少する等の優れた効
果である。As detailed above, the sliding contact material of the present invention has high lubricity (excellent wear resistance), so the contact piece of the commutator of a small motor made using this material is free from abrasion particles when sliding with the brush contact. The contact resistance is low and stable, and the variation in the rotational speed of the commutator of a small motor is greatly reduced, which is an excellent effect.
図は小型モータの整流子と刷子接点との接触状態を示す
斜視図である。
i−−一整流子、1 a−・−接点片、2−−−一刷子
線材、3−−−一刷子接点。
出願人 田中貴金属工業株式会社The figure is a perspective view showing the state of contact between the commutator and brush contacts of a small motor. i - one commutator, 1 a - contact piece, 2 - one brush wire, 3 - one brush contact. Applicant Tanaka Kikinzoku Kogyo Co., Ltd.
Claims (1)
重景重量範囲で添加して成る摺動接点材料。In Ag, 0.5 to 6% by weight of Zn and 0.5 to 3% of Cd
Sliding contact material made of additives in a heavy weight range.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58052066A JPS59177340A (en) | 1983-03-28 | 1983-03-28 | Sliding contact material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58052066A JPS59177340A (en) | 1983-03-28 | 1983-03-28 | Sliding contact material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59177340A true JPS59177340A (en) | 1984-10-08 |
JPH0239571B2 JPH0239571B2 (en) | 1990-09-06 |
Family
ID=12904434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58052066A Granted JPS59177340A (en) | 1983-03-28 | 1983-03-28 | Sliding contact material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59177340A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7160632B2 (en) | 2003-11-26 | 2007-01-09 | Mabuchi Motor Co., Ltd. | Material for sliding contacts, clad composite material and small-sized DC motor using the same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5051908A (en) * | 1973-03-03 | 1975-05-09 | ||
JPS5390132A (en) * | 1977-01-21 | 1978-08-08 | Tanaka Precious Metal Ind | Preparation of aggoxide complex contact material |
JPS5435818A (en) * | 1977-08-26 | 1979-03-16 | Sumitomo Electric Ind Ltd | Electrical contanct point material |
JPS5494430A (en) * | 1978-01-09 | 1979-07-26 | Sumitomo Electric Ind Ltd | Electric contact material |
JPS58110639A (en) * | 1981-12-23 | 1983-07-01 | Tanaka Kikinzoku Kogyo Kk | Sliding contact material |
-
1983
- 1983-03-28 JP JP58052066A patent/JPS59177340A/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5051908A (en) * | 1973-03-03 | 1975-05-09 | ||
JPS5390132A (en) * | 1977-01-21 | 1978-08-08 | Tanaka Precious Metal Ind | Preparation of aggoxide complex contact material |
JPS5435818A (en) * | 1977-08-26 | 1979-03-16 | Sumitomo Electric Ind Ltd | Electrical contanct point material |
JPS5494430A (en) * | 1978-01-09 | 1979-07-26 | Sumitomo Electric Ind Ltd | Electric contact material |
JPS58110639A (en) * | 1981-12-23 | 1983-07-01 | Tanaka Kikinzoku Kogyo Kk | Sliding contact material |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7160632B2 (en) | 2003-11-26 | 2007-01-09 | Mabuchi Motor Co., Ltd. | Material for sliding contacts, clad composite material and small-sized DC motor using the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0239571B2 (en) | 1990-09-06 |
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