DE1200935B - Carbon sliding contacts, especially for electrical machines - Google Patents
Carbon sliding contacts, especially for electrical machinesInfo
- Publication number
- DE1200935B DE1200935B DESCH26736A DESC026736A DE1200935B DE 1200935 B DE1200935 B DE 1200935B DE SCH26736 A DESCH26736 A DE SCH26736A DE SC026736 A DESC026736 A DE SC026736A DE 1200935 B DE1200935 B DE 1200935B
- Authority
- DE
- Germany
- Prior art keywords
- esters
- sliding contacts
- electrical machines
- aliphatic
- carbon
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 19
- 229910052799 carbon Inorganic materials 0.000 title claims description 17
- 150000002148 esters Chemical class 0.000 claims description 12
- 125000001931 aliphatic group Chemical group 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 150000007522 mineralic acids Chemical class 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
- H01R39/22—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof incorporating lubricating or polishing ingredient
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Lubricants (AREA)
Description
Gleitkontakte aus Kohlenstoff, insbesondere für elektrische Maschinen Zur Übertragung des elektrischen Stromes von festen und rotierenden Teilen benutzt man bei elektrischen Maschinen Kohlebürsten. Diese können aus hartem Kohlenstoff, Elektrographit, Naturgraphit, Mischungen aus diesen Stoffen oder Mischungen aus Graphit mit Metall oder auch aus reinen Metallen u. dgl. bestehen. Normalerweise enthalten die Kohlebürsten keine Bindemittel, die Bestandteile sind bei höheren Temperaturen zusammengesintert. Für bestimmte Anwendungszwecke gibt es aber auch Kohlebürsten, bei denen die einzelnen Bestandteile durch Natur- oder Kunststoffe miteinander verbunden sind.Carbon sliding contacts, in particular for electrical machines Used to transmit electrical current from fixed and rotating parts carbon brushes are used in electrical machines. These can be made of hard carbon, Electrographite, natural graphite, mixtures of these substances or mixtures of Graphite with metal or of pure metals and the like. Normally the carbon brushes do not contain any binding agents, the components are higher Temperatures sintered together. For certain purposes there are also Carbon brushes in which the individual components are made from natural or synthetic materials are connected to each other.
Solche elektrisch leitende poröse Agglomerate, insbesondere Kohlebürsten, werden zur Verbesserung der Eigenschaften sehr oft mit einem Mittel anorganischer oder organischer Herkunft behandelt. Diese Behandlung geschieht beispielsweise durch Imprägnierung.Such electrically conductive porous agglomerates, in particular carbon brushes, very often become more inorganic with an agent to improve the properties or of organic origin. This treatment is done through, for example Impregnation.
Zahlreiche Imprägniermittel sind bekannt, sie können den unterschiedlichsten chemischen Stoffgruppen angehören: Metalle und deren Salze, Nichtmetalle und deren Salze, Kunststoffe, Harze, Paraffine, Wachse, Öl usw. Verschiedene dieser Stoffe, wie z. B. die Paraffine oder Wachse, die häufig angewendet werden, haben den Nachteil, daß sie beispielsweise im Betriebsverhalten einer Kohlebürste gewissen Anforderungen nur teilweise gerecht werden. Solche Anforderungen sind unter anderem Schmiereffekt und Temperaturbeständigkeit.Numerous impregnating agents are known, they can be very different chemical substance groups belong to: metals and their salts, non-metals and their Salts, plastics, resins, paraffins, waxes, oil, etc. Various of these substances, such as B. the paraffins or waxes, which are often used, have the disadvantage that they have certain requirements, for example in the operating behavior of a carbon brush only partially do justice. Such requirements include the lubricating effect and temperature resistance.
Als weitere Mittel zur Imprägnierung von Kohlebürsten sind Verbindungen des Esters einer aromatischen Säure vorgeschlagen worden, die sich aus einem aliphatischen Alkohol und einer aromatischen Säure zusammensetzen. Sie eignen sich zur Behandlung von Kohlebürsten, die in größeren Höhen und trockener Atmosphäre arbeiten, aber nicht für Kohlebürsten, die unter normalen atmosphärischen Bedingungen verwendet werden sollen. Auch die Ester von Silizium, Zinn und Titan werden zum Imprägnieren von Kohlebürsten verwendet. Bei thermischer Behandlung zerfallen sie in Dioxide, die eine abrasive und polierende Wirkung auf den Kollektor ausüben, aber keinerlei Schmierwirkung und auch keine Verbesserung der Kohlelaufeigenschaften ergeben.Compounds are another means of impregnating carbon brushes of the ester of an aromatic acid, derived from an aliphatic Compose alcohol and an aromatic acid. They are suitable for treatment of carbon brushes that work at higher altitudes and in a dry atmosphere, but not for carbon brushes used under normal atmospheric conditions should be. The esters of silicon, tin and titanium are also used for impregnation used by carbon brushes. With thermal treatment they break down into dioxides, which have an abrasive and polishing effect on the collector, but none at all Lubricating effect and also no improvement in the carbon running properties result.
Es ist der Zweck der Erfindung, den Gleitkontakten, insbesondere den Kohlebürsten, durch ihre Behandlung mit einem die Gleitung verbessernden Imprägniermittel von hoher Temperaturbeständigkeit einen guten Schmiereffekt zu verleihen.It is the purpose of the invention, the sliding contacts, especially the Carbon brushes, by treating them with an impregnating agent that improves sliding to give a good lubricating effect of high temperature resistance.
Nach der Erfindung sind die Gleitkontakte aus Kohlenstoff, insbesondere für elektrische Maschinen, mit Zusätzen aus Estern zur Verbesserung ihrer Laufeigenschaften dadurch gekennzeichnet, daß diese Zusätze Ester aliphatischer und anorganischer Säuren sind.According to the invention, the sliding contacts are made of carbon, in particular for electrical machines, with additives made from esters to improve their running properties characterized in that these additives are esters of aliphatic and inorganic Acids are.
Von den Estern aliphatischer Säuren seien insbesondere die Umsetzungsprodukte sowohl von gesättigten Dikarbonsäuren als auch von Fettsäuren mit einem aliphatischen Alkohol genannt. Beispiele für Ester anorganischer Säuren sind Ester der Phosphorsäure.Of the esters of aliphatic acids, especially the reaction products are said to be both of saturated dicarboxylic acids and of fatty acids with an aliphatic Called alcohol. Examples of esters of inorganic acids are esters of phosphoric acid.
Ausgedehnte Versuche haben gezeigt, daß die Ester aliphatischer und anorganischer Säuren unter anderem Schmiereigenschaften und Temperaturbeständigkeit besitzen und eine wesentliche Verbesserung der Lauf- und Gleiteigenschaften der Kohlebürsten herbeiführen, unabhängig davon, ob die Kohlebürsten in größeren Höhen und verdünnter, trockener Atmosphäre oder unter normalen Verhältnissen und atmosphärischen Bedingungen sowie bei erhöhten Temperaturen verwendet werden.Extensive experiments have shown that the esters are more aliphatic and inorganic acids, among other things, lubricating properties and temperature resistance own and a significant improvement in the running and sliding properties of the Bring carbon brushes, regardless of whether the carbon brushes are at greater heights and dilute, dry atmosphere or under normal conditions and atmospheric Conditions as well as at elevated temperatures.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH26736A DE1200935B (en) | 1959-09-24 | 1959-09-24 | Carbon sliding contacts, especially for electrical machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH26736A DE1200935B (en) | 1959-09-24 | 1959-09-24 | Carbon sliding contacts, especially for electrical machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1200935B true DE1200935B (en) | 1965-09-16 |
Family
ID=7430539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH26736A Pending DE1200935B (en) | 1959-09-24 | 1959-09-24 | Carbon sliding contacts, especially for electrical machines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1200935B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4330548A1 (en) * | 1993-09-09 | 1995-03-16 | Schunk Kohlenstofftechnik Gmbh | Carbon brush and method for impregnating one |
| DE19902938A1 (en) * | 1999-01-26 | 2000-07-27 | Valeo Auto Electric Gmbh | Carbon brush for electric motor, consists of at least two separate sections, where the second section is located between the first section and an elastic pressing member |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1774381A (en) * | 1927-03-29 | 1930-08-26 | Nat Carbon Co Inc | Electrically conductive article |
| US1991487A (en) * | 1933-02-20 | 1935-02-19 | Speer Carbon Company | Impregnating carbonaceous brushes with abrasive material |
| US2393816A (en) * | 1943-01-01 | 1946-01-29 | Gen Electric | Electrical contact element |
| GB616257A (en) * | 1942-05-23 | 1949-01-19 | Le Cabone Lorraine | Improvements in carbon brushes and sliding contacts for electric machines |
| FR976967A (en) * | 1942-05-23 | 1951-03-27 | Lorraine Carbone | Improvements to brushes and wipers for electrical machines |
| FR992354A (en) * | 1944-06-22 | 1951-10-17 | Lorraine Carbone | Improvements to electrodes and brushes of electrical machines |
| FR1152774A (en) * | 1956-06-14 | 1958-02-25 | Lorraine Carbone | Improvements to carbon brushes for dynamo-electric motors and machines |
| FR1153808A (en) * | 1956-06-14 | 1958-03-21 | Lorraine Carbone | New carbon brushes for dynamoelectric motors and machines |
-
1959
- 1959-09-24 DE DESCH26736A patent/DE1200935B/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1774381A (en) * | 1927-03-29 | 1930-08-26 | Nat Carbon Co Inc | Electrically conductive article |
| US1991487A (en) * | 1933-02-20 | 1935-02-19 | Speer Carbon Company | Impregnating carbonaceous brushes with abrasive material |
| GB616257A (en) * | 1942-05-23 | 1949-01-19 | Le Cabone Lorraine | Improvements in carbon brushes and sliding contacts for electric machines |
| FR976967A (en) * | 1942-05-23 | 1951-03-27 | Lorraine Carbone | Improvements to brushes and wipers for electrical machines |
| US2393816A (en) * | 1943-01-01 | 1946-01-29 | Gen Electric | Electrical contact element |
| FR992354A (en) * | 1944-06-22 | 1951-10-17 | Lorraine Carbone | Improvements to electrodes and brushes of electrical machines |
| FR1152774A (en) * | 1956-06-14 | 1958-02-25 | Lorraine Carbone | Improvements to carbon brushes for dynamo-electric motors and machines |
| FR1153808A (en) * | 1956-06-14 | 1958-03-21 | Lorraine Carbone | New carbon brushes for dynamoelectric motors and machines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4330548A1 (en) * | 1993-09-09 | 1995-03-16 | Schunk Kohlenstofftechnik Gmbh | Carbon brush and method for impregnating one |
| DE4330548C2 (en) * | 1993-09-09 | 1998-07-23 | Schunk Kohlenstofftechnik Gmbh | Carbon brush and method for impregnating one |
| DE19902938A1 (en) * | 1999-01-26 | 2000-07-27 | Valeo Auto Electric Gmbh | Carbon brush for electric motor, consists of at least two separate sections, where the second section is located between the first section and an elastic pressing member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3907844C2 (en) | Process for the production of a magnetic fluid | |
| DE1200935B (en) | Carbon sliding contacts, especially for electrical machines | |
| DE1924331A1 (en) | Drinking agent with castor oil for self-healing capacitors | |
| DE2039734A1 (en) | Improved metal-insulator-semiconductor device | |
| DE563639C (en) | Process for the manufacture of copper oxide rectifiers | |
| DE1614510A1 (en) | Device and method for improving the electrical contact between a movable and a stationary element | |
| DE851657C (en) | Process for the production of collector brushes or the like. | |
| DE533324C (en) | Carbon brush with brush holder for electrical machines | |
| DE2461294B2 (en) | Process for the production of a carbon sliding body | |
| DE1079183B (en) | Carbon brushes with impregnating agents to increase abrasion resistance | |
| DE813729C (en) | Coal brush | |
| DE840410C (en) | Process for the production of high-strength thermistors | |
| US1750990A (en) | Commutator cleanser | |
| DE155901C (en) | ||
| DE482366C (en) | Isolating means for electrical engineering | |
| DE746983C (en) | Device for current removal and current supply to electrical machines and devices, consisting of slip ring and brushes | |
| DE651170C (en) | Tubular power supply brush holder for electrical machines | |
| AT244389B (en) | Semiconductor device | |
| DE841175C (en) | Method of manufacturing selenium AC rectifiers | |
| DE734844C (en) | Electrolyte for electrolytic devices | |
| DE647263C (en) | Electrical insulating material | |
| DE549120C (en) | An electrical capacitor, the insulating layer of which is made using a dielectric with a high dielectric constant | |
| DE754795C (en) | Process for the manufacture of selenium rectifiers | |
| DE974637C (en) | Process for the production of hard waxes used as floor and leather care products | |
| DE1763786B2 (en) | Process for producing a silicone-resistant carbon brush |