JPS59177340A - Sliding contact material - Google Patents

Sliding contact material

Info

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
Application number
JP58052066A
Other languages
Japanese (ja)
Other versions
JPH0239571B2 (en
Inventor
Haruo Kuronuma
黒沼　治夫
Hideomi Kodama
児玉　秀臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
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 Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP58052066A priority Critical patent/JPS59177340A/en
Publication of JPS59177340A publication Critical patent/JPS59177340A/en
Publication of JPH0239571B2 publication Critical patent/JPH0239571B2/ja
Granted legal-status Critical Current

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

PURPOSE:To obtain a sliding contact material having low and stable contact resistance as well as improved lubricity and wear resistance and reducing irregularity in the number of revolutions of a commutator by adding specified amounts of Zn and Cd to Ag. CONSTITUTION:A sliding contact material is obtd. by adding 0.5-6wt% Zn and 0.5-3wt% Cd to Ag. The contact material having said composition has high lubricity and superior wear resistance. The contact chip of the commutator of a small-sized motor made of the contact material produces little powder owing to wear and generates no noise during sliding along a brush contact. The contact material has low and stable contact resistance, so irregularity in the number of revolutions of the commutator is considerably reduced.

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.

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【特許請求の範囲】[Claims] Ａｇ中に、Ｚｎを０．５〜６重量％、Ｃｄを０．５〜３
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.
JP58052066A 1983-03-28 1983-03-28 Sliding contact material Granted JPS59177340A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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