Difference between revisions of "Faustregeln für die Kontaktdimensionierung"
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| − | + | <figure id="fig:Failure probability of a contact as a function of the voitage"> | |
| − | + | [[File:General Rules for Dimensioning of Contact Rivets.jpg|left|thumb|Figure 1: Faustregeln zur Dimensionierung von Kontaktnieten]] | |
| − | [[File:General Rules for Dimensioning of Contact Rivets.jpg|left| | + | </figure> |
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| − | ! | + | !Dimensionierung |
| − | ! | + | !Massivniet (1) |
| − | ! | + | !Bimetallniet (2) |
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| − | *''' | + | *'''Ausfallwahrscheinlichkeit von Einzel- und Doppelkontakten''' (nach Thielecke) |
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{| class="twocolortable" style="text-align: left; font-size: 12px;width:100%" | {| class="twocolortable" style="text-align: left; font-size: 12px;width:100%" | ||
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| − | ! | + | !Kontaktkraft[N] |
| − | !colspan=" | + | !colspan="2" style="text-align:center"|'''Einzelkontakt''' |
| + | !colspan="2" style="text-align:center"|'''Doppelkontakt''' | ||
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<div class="multiple-images"> | <div class="multiple-images"> | ||
<figure id="fig:Failure probability of a contact as a function of the voitage"> | <figure id="fig:Failure probability of a contact as a function of the voitage"> | ||
| − | [[File:Failure probability of a contact as a function of the voitage.jpg|left| | + | [[File:Failure probability of a contact as a function of the voitage.jpg|left|thumb|Figure 2: Ausfallwahrscheinlichkeit eines Kontaktes in Abhängigkeit von der Spannung (nach Kirchdorfer); Ag/Ni10; 10 mA]] |
</figure> | </figure> | ||
<figure id="fig:Failure probability of a contact as a function of the current"> | <figure id="fig:Failure probability of a contact as a function of the current"> | ||
| − | [[File:Failure probability of a contact as a function of the current.jpg|left| | + | [[File:Failure probability of a contact as a function of the current.jpg|left|thumb|Figure 3: Ausfallwahrscheinlichkeit eines Kontaktes in Abhängigkeit von der Stromstärke (nach Kirchdorfer); Ag/Ni10; 10 mA; Ag/Ni10; F<sub>k</sub> = 0.45 N; U = 24 V]] |
</figure> | </figure> | ||
</div> | </div> | ||
<div class="clear"></div> | <div class="clear"></div> | ||
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==Referenzen== | ==Referenzen== | ||
Latest revision as of 07:43, 26 January 2023
Faustregeln für die Kontaktdimensionierung
- Empfohlene Mindestkontaktkräfte bei leicht reibender Kontaktgabe:
| Gold | 0.03 N |
| Silber | 0.1 N |
| Wolfram | 0.5 N |
- Richtwerte für Kontaktkräfte:
| Signalrelais | ≥ 3 cN |
| Netzrelais | ≥ 20 cN |
| Kfz-Relais | ≥ 20 cN |
| Motorschalter (Schütze) (Silber-Metalloxid-Kontakte) |
0.05 - 0.08 N/A |
| Leistungsschalter | 0.1 - 0.2 N/A |
| Steckverbinder (Gold-Beschichtung) |
≥ 30 cN/Kontaktstelle |
| Steckverbinder (Silber-Beschichtung) |
≥ 50 cN/Kontaktstelle |
| Steckverbinder (Zinn-Beschichtung) |
≥ 1 N/Kontaktstelle |
| Dimensionierung | Massivniet (1) | Bimetallniet (2) |
|---|---|---|
| a : d | 1.5 : 1 bis 2.5 : 1 | 2 : 1 bis 2.5 : 1 |
| a : b | 2.5 : 1 bis 10 : 1 | 3 : 1 bis 5 : 1 |
| c : b | ≥ 1 : 1 | ≥ 1 : 1 |
| b : s | ≥ 2 : 1 | |
| smin | ≈ 0.3 mm |
- Ausfallwahrscheinlichkeit von Einzel- und Doppelkontakten (nach Thielecke)
| Kontaktkraft[N] | Einzelkontakt | Doppelkontakt | ||
|---|---|---|---|---|
| Ag | AuNi 5, Pt | Ag | AuNi 5, Pt | |
| 0.04 | 1 x 10-4 | 2 x 10-8 | ||
| 0.1 | 2 x 10-3 | 4 x 10-5 | 8 x 10-5 | 8 x 10-9 |
| 0.2 | 1 x 10-4 | 8 x 10-6 | 4 x 10-6 | 4 x 10-8 |
| 0.3 | 5.5 x 10-6 | 1.5 x 10-6 | 1.8 x 10-7 | 3.2 x 10-10 |
