摘要:
A screw includes a barrel-shaped central pin is surrounded by a cylindrical bore having a conical bottom. The cylindrical insert is seated in the cylindrical bore. The top surface of the central pin is lowered below the top surface of the head. The walls of the pin (4) are convex towards the insert. Manufacturing the screw includes producing the threaded part with the head with the cylindrical recess with the cone-shaped bottom. The cylindrical insert terminates at one end with a bevel with an inclination angle of α=10-30°. The insert is introduced into the cylindrical recess. The upper part of the insert protruding from head of the screw is pre-shaped. The pin is upset using an appropriate tool and simultaneously the top surface of the pin is lowered below the top surface of the head.
摘要:
The present invention is an electrode material constituting a movable electrode of a thermal fuse, having a five-layer clad structure including a core material layer, an intermediate layer formed on the both sides of the core material layer, and a surface layer formed on the intermediate layer, wherein the core material layer includes Cu, the intermediate layer includes an Ag-Cu-based alloy, the surface layer includes an Ag-CuO-based oxide-dispersed strengthened alloy, and the ratio of the thickness of the intermediate layer to the thickness of the surface layer (intermediate layer/surface layer) is 0.2 or more and 1.0 or less. This electrode material can be manufactured by partially internally oxidizing a three-layer clad material in which plate materials made of an Ag-Cu-based alloy are clad-jointed to both sides of the plate material made of Cu.
摘要:
Ce disjoncteur comprend un contact fixe, un contact (12) mobile ayant deux positions stables : une position fermée, où il est relié électriquement au contact fixe et une position ouverte, où il est isolé électriquement du contact fixe. Le contact mobile (12) inclut une première partie (33) réalisée en un premier matériau conducteur et une deuxième partie (34) réalisée en un deuxième matériau conducteur distinct du premier matériau. La deuxième partie (34) est disposée dans un orifice agencé dans la première partie et comprend une extrémité libre (38) en saillie de la première partie (33). L'extrémité libre (38) est destinée à être en appui contre le contact fixe en position fermée du contact mobile (12) et la deuxième partie (34) est, suivant un plan parallèle à un plan d'appui des contacts fixe et mobile (12), entourée sur toute sa périphérie par la première partie (33).
摘要:
Um eine besonders stabile und dauerhafte Verbindung eines Kontaktstückes (13) mit Kontaktoberfläche (14) auf einer Kontaktunterlage (19) zu schaffen, wird nach Festschweißen der beiden Teile eine Einprägung (27) in die Unterseite der Kontaktunterlage (19) eingebracht. Diese geht durch die Kontaktunterlage (19) hindurch und setzt sich als Einprägung (27') in das Kontaktstück (13) hinein fort. So wird zum einen ein gewölbtes Kontaktprofil (14) stabilisiert und auch die gesamte Verbindung. Dabei kann die Kontaktverbindung (11) als Bimetall-Kontakt ausgebildet sein.
摘要:
An electric circuit protection device comprising an interruptable current path for interrupting current flow to a load including trip means for tripping the interruptable current path upon occurrence of a load fault, the interruptable current path comprising first and second electrically conductive parts that have been joined by ultrasonic welding to establish electric conductivity between them, the first part comprising non-alloying material, the second part comprising non-ferrous material, and a brazing material that has been acted upon by the ultrasonic welding to join the parts, the brazing material being selected to comprise at least two materials, one of the two materials being elemental copper, and the elemental copper being the largest single constituent of the brazing material.
摘要:
Es wird ein Verfahren zur Einstellung einer elektrischen Schaltanordnung mit einem Paar elektrischer Kontakte auf einem vorbestimmten Kontaktabstand vorgeschlagen. Ein erster Kontakt (1) wird einem ersten beweglichen Bauteil (2) und ein zweiter Kontakt einem zweiten beweglichen Bauteil zugeordnet. Der erste und der zweite Kontakt haben normalerweise den vorbestimmten Kontaktabstand voneinander und sind relativ zueinander über den Kontaktabstand bewegbar. Wenigstens einer der Kontakte ist verschiebbar auf dem zugeordneten beweglichen Bauteil gehalten. Die beweglichen Bauteile werden über dem vorbestimmten Kontaktabstand aufeinander zu bewegt. Der eine Kontakt (1) wird relativ zu dem zugeordneten beweglichen Bauteil (2) bis zum physikalischen Kontakt mit dem anderen Kontakt verschoben. Der eine Kontakt (1) wird in Position auf dem zugeordneten beweglichen Bauteil (2) fixiert, während er physikalisch in Kontakt mit dem anderen Kontakt steht.
摘要:
The invention concerns an electrical switch with a contact system. The contact system has a contact member comprising a contact body (7) and a contact surface, which is arranged in a recess (25) of a contact carrier (8) in such s way that the contact surface is exposed on the contact carrier (8), and the contact body (7) protrudes on at least one side (23) of the contact carrier (8). The contact member is fastened to the contact carrier (8) by means of the contact body (7) by a region (27, 27') of the protruding contact body (7) allocated to the edge (28) of the recess (25) being stamped to the side (23) of the contact carrier. For additional fastening, one or more spot welds (30, 30') made by means beam (39, 39') are arranged at least in part on the stamped region (27, 27') of the contact body (7) in such a way that the weld zone of the spot weld (30, 30') covers, at least in part, the boundary region between the contact carrier (8), the stamped region (27, 27'), and (where applicable) a part (46) of the contact body (7) that is located in the recess (25), in a vicinity of the edge (28) of the recess (25). Furthermore, a method for manufacturing such a contact system is given.
摘要:
The present invention relates to a contact for a circuit breaker, the contact comprising: - a stem; and - a contact piece; wherein an end of the stem comprises a step or projection; wherein a first side of the contact piece is configured to come into contact with another contact piece of a circuit breaker; wherein a second side of the contact piece comprises a circular cross section hole; wherein the step or projection of the stem is located within the circular cross section hole of the contact piece; and wherein the step or projection of the stem has a polygon cross section.
摘要:
The present invention is an electrode material constituting a movable electrode of a thermal fuse, having a five-layer clad structure including a core material layer, an intermediate layer formed on the both sides of the core material layer, and a surface layer formed on the intermediate layer, wherein the core material layer includes Cu, the intermediate layer includes an Ag-Cu-based alloy, the surface layer includes an Ag-CuO-based oxide-dispersed strengthened alloy, and the ratio of the thickness of the intermediate layer to the thickness of the surface layer (intermediate layer/surface layer) is 0.2 or more and 1.0 or less. This electrode material can be manufactured by partially internally oxidizing a three-layer clad material in which plate materials made of an Ag-Cu-based alloy are clad-jointed to both sides of the plate material made of Cu.