DE823609C - Point contact surface for static electrical terminal contacts in connection lines and in electrical switchgear - Google Patents
Point contact surface for static electrical terminal contacts in connection lines and in electrical switchgearInfo
- Publication number
- DE823609C DE823609C DEU201A DEU0000201A DE823609C DE 823609 C DE823609 C DE 823609C DE U201 A DEU201 A DE U201A DE U0000201 A DEU0000201 A DE U0000201A DE 823609 C DE823609 C DE 823609C
- Authority
- DE
- Germany
- Prior art keywords
- contact
- contact surface
- connection lines
- terminal contacts
- point 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.)
- Expired
Links
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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5075—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw having an uneven wire receiving surface to improve the contact
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Description
Bei elektrischen Klemmkontaktverbindungen versuchte man bisher, durch plangefräste, plangeschliffene oder plangezogene Kontaktflächen einen Flächenkontakt zu erreichen, bei dein der Stromübergang auf der ganzen Fläche vor sich gehen sollte.In the case of electrical terminal contact connections, attempts have been made so far Flat-milled, flat-ground or flat-drawn contact surfaces create a surface contact in which the current transfer should take place over the entire surface.
Der gleichmäßige Stromübergang über die gesamte Kontaktfläche wird jedoch niemals erreicht, da eine vollkommene Planfläche immer noch Unebenheiten aufweist, so daß nur punktförmiger Stromübergang stattfindet, der jedoch dem reinen Zufall überlassen ist, da die Kontaktpunkte sowohl in der Zahl als auch in der Verteilung nicht vorher bestimmt werden können. Eine Kontaktfläche mit vorbestimmten Kontaktpunkten schließt diese Zufälligkeiten in weitemMaße aus, so daß der Stromübergang besser beherrscht werden kann. Außerdem wird der Übergangswiderstand der Kontaktflächen verringert und die Kontaktverluste werden vermindert.The uniform current transfer over the entire contact surface is but never achieved, since a perfectly flat surface still has unevenness has, so that only punctiform current transfer takes place, but the pure It is left to chance, as the contact points are both in number and in distribution cannot be determined beforehand. A contact surface with predetermined contact points excludes these coincidences to a large extent, so that the current transfer is better can be mastered. In addition, the contact resistance of the contact surfaces and the contact losses are reduced.
In der Abb. i sind als Beispiel für Punktkontaktflächen gezeigt: a) ein Klemmenanschlußauge eines Kabelschuhes (Abb. i a), b) eine Rundleiterklemmung mittels Konusklemme (Abb. i b), c) eine Rundleiterklemmung mittels Klemmdeckel (Abb. i c), d) eine Kontaktunterlagscheibe (Abb. i d).In Fig. I the following are shown as an example of point contact surfaces: a) a terminal connection eye of a cable lug (Fig. i a), b) a round conductor clamp by means of a conical clamp (Fig. i b), c) a round conductor clamp by means of a clamp cover (Fig. i c), d) a contact washer (Fig. i d).
In der Abb. 2 ist eine Punktkontaktfläche im Prinzip dargestellt. Auf der Fläche a befinden sich punktförmige Erhebungen b von gleicher Höhe, so daß über die ganze Kontaktfläche verteilt Punktkontaktstellen vorhanden sind, die bei Anzug der Klemmschraube in die Gegenfläche eingedrückt werden und absolut sichere punktförmige Stromübergänge herstellen.In Fig. 2, a point contact surface is shown in principle. On the surface a there are punctiform elevations b of the same height, so that There are point contact points distributed over the entire contact surface, which at Tighten the clamping screw to be pressed into the mating surface and absolutely secure Establish punctiform current transitions.
Bei halbkreisförmigen Kontaktflächen ist es technisch nicht gut möglich, Punkterhebungen auf der Seite einzupressen. Es muß deshalb an diesen Stellen zu Kontaktrippen übergegangen werden, die die gleiche Höhe haben wie die Punkterhebungen. Diese Möglichkeit ist in der Abb.3 dargestellt. a stellt wieder die Kontaktgrundfläche dar, auf der sich die Punkterhebungen b befinden, die seitlich in die Kontaktrippen c übergehen.With semicircular contact surfaces, it is not technically possible to Press point surveys on the side. It must therefore be closed at these points Contact ribs are passed over, which have the same height as the point elevations. This possibility is shown in Figure 3. a again represents the contact base area is on which the point elevations b are located, which laterally into the contact ribs c skip.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEU201A DE823609C (en) | 1950-04-25 | 1950-04-25 | Point contact surface for static electrical terminal contacts in connection lines and in electrical switchgear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEU201A DE823609C (en) | 1950-04-25 | 1950-04-25 | Point contact surface for static electrical terminal contacts in connection lines and in electrical switchgear |
Publications (1)
Publication Number | Publication Date |
---|---|
DE823609C true DE823609C (en) | 1951-12-06 |
Family
ID=7564775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEU201A Expired DE823609C (en) | 1950-04-25 | 1950-04-25 | Point contact surface for static electrical terminal contacts in connection lines and in electrical switchgear |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE823609C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2802897A (en) * | 1952-07-18 | 1957-08-13 | Gen Electric | Insulated electrical conductors |
-
1950
- 1950-04-25 DE DEU201A patent/DE823609C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2802897A (en) * | 1952-07-18 | 1957-08-13 | Gen Electric | Insulated electrical conductors |
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