SK9831Y1 - Flexible metal collector for electrical machines and devices with contacts in the form of carbon brushes - Google Patents
Flexible metal collector for electrical machines and devices with contacts in the form of carbon brushes Download PDFInfo
- Publication number
- SK9831Y1 SK9831Y1 SK50091-2022U SK500912022U SK9831Y1 SK 9831 Y1 SK9831 Y1 SK 9831Y1 SK 500912022 U SK500912022 U SK 500912022U SK 9831 Y1 SK9831 Y1 SK 9831Y1
- Authority
- SK
- Slovakia
- Prior art keywords
- collector
- metal
- devices
- contacts
- electrical machines
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 32
- 239000002184 metal Substances 0.000 title claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 239000004332 silver Substances 0.000 claims abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims abstract description 5
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
Oblasť technikyThe field of technology
Technické riešenie sa týka pružného kovového zberača pre elektrické stroje a prístroje s kontaktmi vo forme uhlíkových kief. Riešenie možno zaradiť do oblasti regulačných transformátorov, autotransformátorov, potenciometrov, reostatov, elektromotorov a iných podobných zariadení.The technical solution concerns a flexible metal collector for electrical machines and devices with contacts in the form of carbon brushes. The solution can be included in the field of control transformers, autotransformers, potentiometers, rheostats, electric motors and other similar devices.
Doterajší stav technikyCurrent state of the art
Kefa (kefka) je elektricko-mechanická vodivá súčiastka zabezpečujúca elektrický kontakt medzi pevnou a pohyblivou časťou elektrického stroja. Je to časť zberača. Na kefy sa používa výhradne mechanicky a tepelne odolný materiál (obvykle kompozit), nakoľko rýchlosť komutácie sa v súčasných zariadeniach mnohonásobne zvýšila. Výrazne stúplo aj prúdové zaťaženie takéhoto kontaktného spoja na báze grafitu. Elektricky je kefa prichytená o statické konštrukčné časti stroja a spojená so svorkami elektrického prívodu. V točivom elektrickom stroji (elektromotor, dynamo) sprostredkuje kontakt na komutátor, v striedavých elektrických motoroch zabezpečuje kontakt na zberné krúžky, zberné lišty, prívodné vedenie a pod. Pritom nesmie poškodzovať prívodné lišty, resp. komutátor. Preto je vyrábaný z mäkšieho materiálu ako lišty, resp. komutátor. Elektricky je kefa prichytená o statické konštrukčné časti stroja a spojená s prívodom do stroja. Okrem elektrického kontaktu musí kefa zabezpečiť aj suché mastenie klzného spoja, čo zabezpečuje použitý grafit. Kefa je najnamáhanejšou časťou elektrického stroja. Je namáhaná trením, zohrievaná prechodom elektrického prúdu, erodovaná iskrením a pod.A brush is an electro-mechanical conductive component ensuring electrical contact between the fixed and moving parts of an electrical machine. It is part of the collector. Only mechanically and thermally resistant material (usually composite) is used for the brushes, as the speed of commutation has increased many times in current devices. The current load of such a graphite-based contact joint also increased significantly. Electrically, the brush is attached to the static structural parts of the machine and connected to the terminals of the electrical supply. In a rotating electric machine (electric motor, dynamo) it provides contact to the commutator, in AC electric motors it provides contact to slip rings, slip bars, supply lines, etc. At the same time, it must not damage the supply rails, or commutator. That is why it is made of softer material than slats, or commutator. Electrically, the brush is attached to the static structural parts of the machine and connected to the supply to the machine. In addition to electrical contact, the brush must also ensure dry lubrication of the sliding joint, which is ensured by the graphite used. The brush is the most stressed part of the electric machine. It is stressed by friction, heated by the passage of electric current, eroded by sparking, etc.
Kefa má obmedzenú životnosť (rádovo nižšia ako životnosť stroja). Konštrukcia zberača preto musí umožniť jednoduchú výmenu kefy. Preto je nutné kefu zberača umiestňovať do špeciálnych vodivých držiakov, ktoré sú umiestnené do vodiacich otvorov zberača tak, aby bol zabezpečený prítlak kefy na vodivú plochu vinutia stroja. Súčasne musí kefa elektricky spájať vinutie s vývodmi (svorkovnicou) stroja bez občasného nežiadaného prerušenia. Doterajší stav techniky je opísaný v nasledujúcich dokumentoch:The brush has a limited service life (an order of magnitude lower than the service life of the machine). The design of the collector must therefore allow for easy brush replacement. Therefore, it is necessary to place the brush of the collector in special conductive holders, which are placed in the guide holes of the collector in such a way that the pressure of the brush on the conductive surface of the machine winding is ensured. At the same time, the brush must electrically connect the winding to the terminals (terminal box) of the machine without occasional unwanted interruption. The current state of the art is described in the following documents:
- SK1082011 Ul (BALARA MILAN) 04-11-2011;- SK1082011 Ul (BALARA MILAN) 04-11-2011;
Literatúra:Literature:
• Halliday, D., Resnick, R., Walker, J.: Fyzika. Vysokoškolská učebnice obecné fyziky, část 3, VUTIUM, Brno, 2000.• Halliday, D., Resnick, R., Walker, J.: Physics. University textbook of general physics, part 3, VUTIUM, Brno, 2000.
• Electronics cook book, [online], [cit.4.8.2007URL: <http://www.geocities.com/dsaproject/electronics/cook-book/cookbook.html>• Electronics cook book, [online], [cit.4.8.2007URL: <http://www.geocities.com/dsaproject/electronics/cook-book/cookbook.html>
• Vavriňák, P.: Elektrické stroje a prístroje, [online], [cit.3.8. 2007], URL: <http://ssede.wz.cz/web%20ISS/studmat/el%20stroje%20a%20pristroje%20bez%20hesla. pdf>• Vavriňák, P.: Electric machines and devices, [online], [cit.3.8. 2007], URL: <http://ssede.wz.cz/web%20ISS/studmat/el%20stroje%20a%20pristroje%20bez%20hesla. pdf>
Podstata technického riešeniaThe essence of the technical solution
Podstata technického riešenia spočíva v tom, že pružný kovový zberač pre elektrické stroje a prístroje s kontaktmi vo forme uhlíkových kief je tvorený kovovým ramenom zberača s upevňovacou kovovou sponou. Na tú je nasunuté kovové rameno zberača a do nej je súčasne vsunutá uhlíková kefa s nanesenou vrstvou striebra. Tá je spojená cínovou spájkou s upevňovacou kovovou sponou. Súčasne je spojená s kovovou upevňovacou sponou a kovovým ramenom zberača.The essence of the technical solution is that the flexible metal collector for electrical machines and devices with contacts in the form of carbon brushes is formed by a metal arm of the collector with a fixing metal clip. The metal arm of the collector is pushed onto it, and a carbon brush with a layer of silver is inserted into it at the same time. It is connected by tin solder with a fixing metal clip. At the same time, it is connected to a metal fastening clip and a metal collector arm.
Prehľad obrázkov na výkresochOverview of images on drawings
Technické riešenie je bližšie vysvetlené pomocou výkresu, na obr. 1 a 2 je znázornené celkové usporiadanie funkčných častí zariadenia.The technical solution is explained in more detail with the help of the drawing, in fig. 1 and 2 shows the overall arrangement of the functional parts of the device.
Príklady uskutočneniaImplementation examples
Na obr. 1 je znázornený príklad uskutočnenia predmetného zariadenia. Znázorňuje celkové usporiadanie jeho funkčných častí. Pružný kovový zberač pre elektrické stroje a prístroje, s kontaktmi vo forme uhlíkových kief, je tvorený kovovým ramenom 5 zberača s upevňovacou kovovou sponou 4, na ktorú je nasunuté kovové rameno 5 zberača a do nej je súčasne vsunutá uhlíková kefa 1 s nanesenou vrstvou striebra 2, ktorá je spojenáIn fig. 1 shows an example of the device in question. It shows the overall arrangement of its functional parts. A flexible metal collector for electrical machines and devices, with contacts in the form of carbon brushes, is formed by a metal arm 5 of the collector with a fixing metal clip 4, on which the metal arm 5 of the collector is pushed and at the same time a carbon brush 1 with an applied layer of silver 2 is inserted into it , which is connected
SK 9831Υ1 cínovou spájkou 3 s upevňovacou kovovou sponou 4. Kovová upevňovacia spona 4 je súčasne spojená s kovovým ramenom 5 zberača. V niektorých zariadeniach ako napr. autotransformátor alebo potenciometer vinutý odporovým drôtom sa vyskytuje relatívne malá rýchlosť posuvu kefy. Opotrebenie takejto kefy je prakticky zanedbateľné. Preto takéto kefy môžu byť pripevnené na stále použitie k (pružnému elementu) 5 zberaču a nemusia byť konštrukčne prispôsobené na časté výmeny.SK 9831Υ1 tin solder 3 with a fixing metal clip 4. The metal fixing clip 4 is simultaneously connected to the metal arm 5 of the collector. In some devices such as autotransformer or potentiometer wound with a resistance wire, a relatively small speed of brush movement occurs. The wear of such a brush is practically negligible. Therefore, such brushes can be attached for permanent use to the collector (flexible element) 5 and do not have to be structurally adapted for frequent replacements.
Priemyselná využiteľnosťIndustrial applicability
Zariadenie podľa navrhovaného riešenia je možno využiť hlavne v zariadeniach, ako napr. v regulačných transformátoroch, autotransformátoroch alebo potenciometroch vinutých odporovým drôtom. Tieto zariadenia sú používané vo všetkých odvetviach priemyslu a ostatných odvetví, kde je používaná meracia a riadiaca prístrojová technika.The device according to the proposed solution can be used mainly in devices such as in regulation transformers, autotransformers or potentiometers wound with a resistance wire. These devices are used in all branches of industry and other sectors where measuring and control instrumentation is used.
Zoznam vzťahových značiek uhlíková kefa vrstva striebraList of related brands carbon brush silver layer
3 cínová spájka upevňovacia kovová spona kovové rameno zberača3 tin solder fastening metal clip metal collector arm
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SK50091-2022U SK9831Y1 (en) | 2022-11-22 | 2022-11-22 | Flexible metal collector for electrical machines and devices with contacts in the form of carbon brushes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SK50091-2022U SK9831Y1 (en) | 2022-11-22 | 2022-11-22 | Flexible metal collector for electrical machines and devices with contacts in the form of carbon brushes |
Publications (2)
Publication Number | Publication Date |
---|---|
SK500912022U1 SK500912022U1 (en) | 2023-04-12 |
SK9831Y1 true SK9831Y1 (en) | 2023-08-23 |
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Application Number | Title | Priority Date | Filing Date |
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SK50091-2022U SK9831Y1 (en) | 2022-11-22 | 2022-11-22 | Flexible metal collector for electrical machines and devices with contacts in the form of carbon brushes |
Country Status (1)
Country | Link |
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SK (1) | SK9831Y1 (en) |
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2022
- 2022-11-22 SK SK50091-2022U patent/SK9831Y1/en unknown
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