JPS609417B2 - Manufacturing method for electrical brushes - Google Patents
Manufacturing method for electrical brushesInfo
- Publication number
- JPS609417B2 JPS609417B2 JP7102980A JP7102980A JPS609417B2 JP S609417 B2 JPS609417 B2 JP S609417B2 JP 7102980 A JP7102980 A JP 7102980A JP 7102980 A JP7102980 A JP 7102980A JP S609417 B2 JPS609417 B2 JP S609417B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- brush body
- lead wire
- brush
- pedestal
- 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.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000001035 drying Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- VHCQVGQULWFQTM-VOTSOKGWSA-N Rubone Chemical compound COC1=CC(OC)=CC(O)=C1C(=O)\C=C\C1=CC(OC)=C(OC)C=C1OC VHCQVGQULWFQTM-VOTSOKGWSA-N 0.000 description 1
- VHCQVGQULWFQTM-UHFFFAOYSA-N Rubone Natural products COC1=CC(OC)=CC(O)=C1C(=O)C=CC1=CC(OC)=C(OC)C=C1OC VHCQVGQULWFQTM-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/36—Connections of cable or wire to brush
Landscapes
- Motor Or Generator Current Collectors (AREA)
Description
【発明の詳細な説明】 本発明は電機用ブラシの製造方法の改良に関する。[Detailed description of the invention] The present invention relates to an improvement in a method for manufacturing brushes for electrical machinery.
周知の如く、電機用ブラシの製造においては、炭素製の
ブラシ本体にリード線を取付ける工程が不可欠である。As is well known, in the manufacture of electrical brushes, a step of attaching lead wires to a carbon brush body is essential.
このリード線取付け方法には種々の方法があるが、従来
では銅粉などの金属粉どめ法が広く採用されている。こ
の方法は、第１図に示すようにブラシ本体１に該本体１
の長さ方向に孔２を穿ち、これにリード線３を挿入し、
リード線３と孔２の壁面の間に鋼粉４を流し込みながら
、損き固めてブラシ本体１にリード線３を取付ける方法
である。しかしながら、かかる方法ではブラシ本体１の
強度が低い場合には渇き固め衝撃力でブラシが男関する
恐れがある。また、ブラシの使用限度を長くする目的で
、第２図に示す如くブラシ本体１にその成形加圧方向に
取付孔２′を穿って銅粉止めする場合もある。しかしな
がら、この方法にあってはブラシ本体１の強度が低い場
合、或いは強度が高くても取付孔２′底部からブラシ本
体１の側面までの寸法Ｗが短い時には渇き固め衝撃力で
Ｗの寸法に相当する部分が破損する恐れがある。このよ
うに、従来法ではブラシ本体の男関、破損を防止するた
めに渇き固め圧力を手加減する必要があるが、渇き固め
圧力を低くすると、ブラシ本体に対するリード線の取付
強度が低下し、使用時にリード線が抜けるという欠点が
生じる。これに対し、本発明者は上記欠点を克服するた
めに鋭意研究を重ねた結果、ブラシ本体にリード線取付
け用賀通孔を該本体の成形加圧方向に形成し、この貫通
孔の一端関口部を受台の突起部に競合させ、池端関口部
よりリード線を前記突起部に当援するように挿入し、導
電性の金属粉の塙き固めを行なうことによって、金属粉
の渇き固めに際しての衝撃力が受台に加わりブラシ本体
に直接的に加わるのを防止でき、高い衝撃圧力でブラシ
本体の破損等を招くことなく金属粉どめを行なうことが
でき、ひいてはブラシ本体に対するリード線の取付強度
が格段に向上した電機用ブラシを製造し得る方法を見し
、出した。There are various methods for attaching the lead wires, but conventionally, a method using metal powder such as copper powder has been widely adopted. In this method, as shown in FIG.
Drill a hole 2 in the length direction, insert the lead wire 3 into it,
This is a method of attaching the lead wire 3 to the brush body 1 by pouring steel powder 4 between the lead wire 3 and the wall surface of the hole 2 and solidifying the damage. However, in such a method, if the strength of the brush main body 1 is low, there is a risk that the brush may become damaged due to the impact force. In addition, in order to extend the usability of the brush, as shown in FIG. 2, a mounting hole 2' may be bored in the brush body 1 in the direction of pressurization during molding and fixed with copper powder. However, in this method, if the strength of the brush body 1 is low, or even if the strength is high, the dimension W from the bottom of the mounting hole 2' to the side surface of the brush body 1 is short, the dimension W may be reduced due to the impact force. Corresponding parts may be damaged. In this way, in the conventional method, it is necessary to moderate the drying and compacting pressure to prevent damage to the brush body, but lowering the drying and compacting pressure reduces the attachment strength of the lead wire to the brush body, making it difficult to use. There is a drawback that the lead wire sometimes comes off. In order to overcome this drawback, the inventors of the present invention have conducted intensive research and have formed a through hole for attaching lead wires in the brush main body in the direction of molding and pressurizing the main body, and has created a through hole at one end of the through hole. By making the conductive metal powder compete with the protruding part of the pedestal, inserting the lead wire from the Ikebata Sekiguchi part so as to support the protruding part, and solidifying the conductive metal powder, it is possible to It is possible to prevent impact force from being applied directly to the brush body by applying it to the pedestal, and it is possible to remove metal powder without causing damage to the brush body due to high impact pressure, and it is also possible to attach the lead wire to the brush body. We discovered a method for manufacturing electrical brushes with significantly improved strength.
すなわち、本発明はブラシ本体にリード線取付け用貫通
孔を該本体の成形加圧方向に形成し、該ブラシ本体の貫
通孔の一端閉口部を受台に突出した該貫通孔よりわずか
に径の小さい突起部に欧合させた後、ブラシ本体の貫通
孔の他端開□部よりリード線を前記突起部の頂面に当援
するように挿入し、導電性の金属粉の鳩き固めを行なっ
てＩＪ−ド線をブラシ本体に取付け、固定せしめること
を特徴とするものである。That is, in the present invention, a through hole for attaching a lead wire is formed in the brush body in the molding and pressurizing direction of the body, and one end of the through hole of the brush body is formed with a diameter slightly smaller than that of the through hole that protrudes into the pedestal. After fitting the lead wire into the small protrusion, insert the lead wire through the opening at the other end of the through hole of the brush body so as to support the top surface of the protrusion, and harden the conductive metal powder. This feature is characterized in that the IJ-wire is attached and fixed to the brush body by performing the following steps.
本発明におけるブラシ本体の貫通孔はリード線の金属粉
どめの取付け部として機能するものであるが、その貫通
孔は金属粉どめの加圧に際し、ブラシ本体が破損される
のを防止する目的でブラシ本体の成形加圧方向に形成す
る。The through hole of the brush body in the present invention functions as an attachment part for the metal powder stopper of the lead wire, but the through hole prevents the brush body from being damaged when the metal dust stopper is pressurized. For this purpose, it is formed in the direction of molding and applying pressure to the brush body.
本発明における受台の突起部はブラシ本体の貫通孔の一
端開口部が鉄合され、損き固めによる金属粉どめに際し
、所定の圧力で効果的に金属粉を鳩き固めする役目を果
す。The protruding part of the pedestal in the present invention is iron-coupled with one end opening of the through hole of the brush body, and plays the role of effectively clumping metal powder with a predetermined pressure when preventing metal powder by compaction. .
つまり、受台に突起部がなく平坦な場合、この受台にブ
ラシ本体の貫通孔の一端閉口部を当綾ごせ金属粉どめを
行なうと、金属粉がブラシ本体と受台の隙間から流出し
て渇き固め圧力の逃げが生じ、渇き固めを十分行なえな
くなるばかりか、貫通孔の一端閉口部付近に金属粉のバ
リ等を生じる。これを防止したのが、受台に突出した突
起部である。かかる受台の突起部の高さは低過ぎると、
貫通孔の一端閉口部の封鎖を確実にできなくなり、かと
いって高くし過ぎると、貫通孔の実効的な長さが短くな
って金属粉どめの効果が低下する。このため、受台の突
起部の高さは０．３〜０．７側の範囲にすることが望ま
しい。なお、貫通孔の長さは３〜１仇肌‘こすることが
好ましい。本発明に使用する導電性の金属粉としては、
例えば銅粉、銅を母材として鉛、錫などを合金化した銅
合金粉、或いは鉄粉等を挙げることができる。In other words, if the cradle has no protrusions and is flat, if you rub one end of the closed end of the through-hole of the brush body on the cradle to prevent metal powder, the metal powder will come out from the gap between the brush body and the cradle. As a result of the outflow, the drying and compacting pressure escapes, which not only makes it impossible to perform the drying and compacting sufficiently, but also creates burrs of metal powder near the closed end of the through hole. This was prevented by the protrusion protruding from the pedestal. If the height of the protrusion of such a pedestal is too low,
It becomes impossible to reliably seal one end of the through-hole, and if the height is too high, the effective length of the through-hole becomes short and the effectiveness of metal powder containment decreases. For this reason, it is desirable that the height of the protruding portion of the pedestal be in the range of 0.3 to 0.7. In addition, it is preferable that the length of the through hole is 3 to 1 inch. The conductive metal powder used in the present invention includes:
For example, copper powder, copper alloy powder made by alloying copper as a base material with lead, tin, etc., iron powder, etc. can be used.
次に、本発明の実施例を第３図ａ〜ｃを参照して説明す
る。Next, an embodiment of the present invention will be described with reference to FIGS. 3a to 3c.
実施例
まず、第３図ａに示す如くブラシ本体１１の中央上部に
ドリルによりリード線取付け用貫通孔１２を該本体１１
の成形加圧方向に形成する。Embodiment First, as shown in FIG.
Formed in the direction of molding pressure.
この場合、ブラシ本体１１の成形時、同時に貫通孔１２
を形成するようにしてもよい。次いで、高さ０．５肋、
外径が前記貫通孔１ ２よりわずかに小さい円盤状の突
起部１３を有する受台１４を用意し、この受台１４の突
起部１３にブラシ本体１１の貫通孔１２の一端開口部１
２ａを鉄合させてその開口部１２ａ側の本体１１壁面を
受台１４に当接させた。ひきつづき、銅製のリード線１
５を貫通孔１２の他端閉口部１２ｂから該孔１２内に前
記突起部１３の頂面に当接するように挿入した後、貫通
孔１２より僅かに小さい外径の渇き固めパイプ１６を用
いて、該パイプ１６の内側より平均粒度５０〜６０メッ
シュの銅粉１７を孔１２の壁面とりード線１５の間に流
しながらパイプ１６により渇き固めを行なった（第３図
ｂ図示）。その後、ブラシ本体１１を受台１４により雛
形して第３図ｃに示す如くブラシ本体１１に対してリー
ド線１５を銅粉１７で固め取付けられた電機用ブラシを
製造した。上述した実施例において受台１４の突起部１
３にブラシ本体１ １の貫通孔１３を鉄合させた状態で
鳩き固めを行なうため、その操作をブラシ本体１１の破
損を気遣うことなく、充分強い加圧力で行なうことがで
きる。In this case, when molding the brush body 11, the through holes 12
may be formed. Next, 0.5 ribs in height,
A pedestal 14 having a disc-shaped protrusion 13 whose outer diameter is slightly smaller than the through hole 12 is prepared, and the opening 1 at one end of the through hole 12 of the brush body 11 is attached to the protrusion 13 of the pedestal 14.
2a were iron-coupled, and the wall surface of the main body 11 on the side of the opening 12a was brought into contact with the pedestal 14. Continuing, copper lead wire 1
5 is inserted into the hole 12 from the other end closed portion 12b of the through hole 12 so as to contact the top surface of the protrusion 13, and then using a drying pipe 16 having an outer diameter slightly smaller than that of the through hole 12. The copper powder 17 having an average particle size of 50 to 60 mesh was flowed from the inside of the pipe 16 between the wall surface of the hole 12 and the lead wire 15, and solidification was carried out through the pipe 16 (as shown in FIG. 3B). Thereafter, the brush body 11 was made into a model using the pedestal 14, and a brush for an electric machine was manufactured in which the lead wire 15 was fixed and attached to the brush body 11 with copper powder 17, as shown in FIG. 3c. In the embodiment described above, the protrusion 1 of the pedestal 14
3 and the through hole 13 of the brush body 11 are iron-coupled, the operation can be performed with a sufficiently strong pressing force without worrying about damage to the brush body 11.
その結果、銅粉の締りが格段に強くなり、ブラシ本体１
１に対してリード線１５が強固に取付けられた電機用ブ
ラシを得ることができた。事実、従来法により製造され
た電機用ブラシのリード線取付強度は２ｋ９程度である
のに対し、本実施例で得た電機用ブラシのリード線取付
強度は１０ｋ９となり、５倍以上の強度向上を達成でき
た。以上詳述した如く、本発明によればブラシ本体の破
損を考慮せずに十分な衝撃圧力で金属粉の渇き固めを行
なうことができ、もってブラシ本体に対するリード線の
取付強度が格段に向上した高信頼性、整流特性の優れた
電機用ブラシを効率よく製造できる等顕著な効果を有す
る。図面の簡単な説明第１図、第２図は夫々従来法によ
り得た電機用ブラシの部分断面図、第３図ａ〜ｃは本発
明の実施例における電機用ブラシの製造工程を示す部分
断面図である。As a result, the tightness of the copper powder becomes much stronger, and the brush body 1
It was possible to obtain a brush for an electric machine in which the lead wire 15 was firmly attached to the brush 1. In fact, the lead wire attachment strength of the electrical brush manufactured by the conventional method is about 2k9, whereas the lead wire attachment strength of the electrical brush obtained in this example is 10k9, which is more than a five-fold improvement in strength. I was able to achieve it. As described in detail above, according to the present invention, it is possible to dry and solidify metal powder with sufficient impact pressure without considering damage to the brush body, thereby significantly improving the attachment strength of the lead wire to the brush body. It has remarkable effects such as being able to efficiently manufacture electrical brushes with high reliability and excellent rectification characteristics. BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are partial cross-sectional views of electric brushes obtained by conventional methods, and FIGS. 3 a to 3 c are partial cross-sectional views showing the manufacturing process of electric brushes according to embodiments of the present invention. It is a diagram.
１１……ブラシ本体、１２・・・・・・貫通孔、１２ａ
，１２ｂ…・・・開口部、１３・…・・突起部、１４・
・・・・・受台、１５……リード線、１７・・・・・・
鋼粉。11...Brush body, 12...Through hole, 12a
, 12b...Opening, 13...Protrusion, 14...
...cradle, 15...lead wire, 17...
Steel powder.
第１図第２図 第３図Figure 1 Figure 2 Figure 3
Claims (1)
形加圧方向に形成し、該ブラシ本体の貫通孔の一端開口
部を受台に突出した該貫通孔よりわずかに径の小さい突
起部に嵌合させた後、ブラシ本体の貫通孔の他端開口部
よりリード線を前記突起部の頂面に突接するように挿入
し、導電性の金属粉の搗き固めを行なってリード線をブ
ラシ本体に取付け、固定せしめることを特徴とする電機
用ブラシの製造方法。1 A through hole for attaching a lead wire is formed in the brush body in the molding and pressurizing direction of the body, and one end opening of the through hole in the brush body is formed into a protrusion with a slightly smaller diameter than the through hole that protrudes into the pedestal. After fitting, the lead wire is inserted from the other end opening of the through hole of the brush body so as to be in contact with the top surface of the protrusion, and the conductive metal powder is pounded and solidified, and the lead wire is inserted into the brush body. A method for manufacturing an electrical brush, which is characterized by being attached to and fixed to a brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7102980A JPS609417B2 (en) | 1980-05-28 | 1980-05-28 | Manufacturing method for electrical brushes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7102980A JPS609417B2 (en) | 1980-05-28 | 1980-05-28 | Manufacturing method for electrical brushes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5744A JPS5744A (en) | 1982-01-05 |
| JPS609417B2 true JPS609417B2 (en) | 1985-03-09 |
Family
ID=13448683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7102980A Expired JPS609417B2 (en) | 1980-05-28 | 1980-05-28 | Manufacturing method for electrical brushes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609417B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0370333U (en) * | 1989-11-14 | 1991-07-15 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4902666A (en) * | 1986-07-02 | 1990-02-20 | Chevron Research Company | Process for the manufacture of spheroidal bodies by selective agglomeration |
| JPH01265907A (en) * | 1989-02-15 | 1989-10-24 | Matsushita Electric Works Ltd | Rotary storing unit |
| EP2288003A4 (en) * | 2008-04-16 | 2014-12-17 | Totankako Co Ltd | Lead wire embedding device and lead wire embedding method |
| CN106099597B (en) * | 2016-05-31 | 2018-12-28 | 神奇电碳集团上海实业有限公司 | Improve the method and structure of filling pull strength of the conducting wire in brush |
-
1980
- 1980-05-28 JP JP7102980A patent/JPS609417B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0370333U (en) * | 1989-11-14 | 1991-07-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5744A (en) | 1982-01-05 |
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