摘要:
A key assembly in accordance with embodiments of the invention comprises a base, a keycap, a biasing mechanism, a first linkage, and a second linkage. The keycap is spaced from the base along a press direction and configured to move between an unpressed position and a pressed position relative to the base. The unpressed and pressed positions are separated by a first amount in the press direction and a second amount in a lateral direction orthogonal to the press direction. The first amount is at least as much as the second amount and no larger than twice the second amount. The biasing mechanism is configured to bias the keycap away from the base. The first and second linkages are rotatably coupled to the base and the keycap.
摘要:
An embodiment method of manufacturing modular panels includes manufacturing a group of modular display panels, including a first and second modular display panel that have the same size and shape. The first modular display panel includes a first pixel array arranged at a first pitch, and the second modular display panel includes a second pixel array that is arranged at a second pitch that is different than the first pitch. Any two modular display panels in the group are capable of being attached to each other in an integrated display system.
摘要:
A circuit breaker having a monolithic structure and method of making is disclosed. The monolithic structure includes an arm portion having copper and a contact portion having a composite material. The composite material has a metallic matrix and a second phase disposed in the metallic matrix. The method of making the monolithic structure includes introducing a first powder into a first region of a mold, introducing a second powder into a second region of the mold, and consolidating the first powder and the second powder together. The first region of the mold corresponds to a contact portion, and the second region corresponds to an arm portion of the monolithic structure of the circuit breaker.
摘要:
The invention relates to a vacuum bulb (1) including a sealed chamber (4), two electrical contacts (7, 7′) and a dielectric coating (12) which covers the outer surface of the chamber (4). This coating (12) includes at least two layers, an overmoulding layer (14) made of a synthetic material and an intermediate layer (13) made of silicone interposed between the outer surface of the chamber (4) and the overmoulding layer (14).According to the invention, the intermediate layer (13) is discontinuous and localised on the metal portions of the chamber (4) so as to cover at least partially the outer surface of the metal portions, where the silicone of the intermediate layer (13) includes hollow bodies, where these hollow bodies are compressible, and have a skin made of a thermoplastic material.The invention also relates to a switchgear including at least one such vacuum bulb (1), in particular a circuit-breaker pole.Finally, the present invention relates to a method for manufacturing such a vacuum bulb (1) and also to a method for manufacturing such a circuit-breaker pole.
摘要:
An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.
摘要:
An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.
摘要:
An article of manufacture having an in-molded resistive and/or shielding element and method of making the same are shown and described. In one disclosed method, a resistive and/or shielding element is printed on a film. The film is formed to a desired shape and put in an injection mold. A molten plastic material is introduced into the injection mold to form a rigid structure that retains the film.
摘要:
A method for the production of an electric contact carrier includes producing a basic profile from a basic material. A contact material is applied on a contact accepting area of the basic profile. The contact material is formed into a contact of the contact carrier. Then, the contact carrier is removed from the basic material.
摘要:
A method for manufacturing a sealed contact point is performed by injecting an arc extinguishing gas into an air-tight space of an electromagnetic switching device and sealing it. The method for manufacturing a sealed contactor, including: forming a driving body and coupling a housing and a plate; air-tightly fixing a detachable chamber and forming the interior of the chamber under an insulating gas atmosphere; tightly attaching the cylinder to the plate by a tight-attachment inducing member within the chamber under the insulating gas atmosphere to form a sealing structure; exhausting the chamber; disassembling the chamber from the plate; and sealing the tightly attached plate and the cylinder.
摘要:
The present invention relates to a method for producing an electric contact element from a semifinished product and to the electric contact element and the corresponding semifinished product. The method for producing an electric contact element (100), which can be electrically contacted by a mating contact, comprises the following steps: producing a wire (120) from a first electrically conductive material (112); coating the wire surface with a sheath (114) made of a second electrically conductive material; partially removing the sheath (114) in a direction along a longitudinal wire axis (118); forming at least one cylindrical semifinished product (110) by dividing the wire in a direction transverse to the longitudinal wire axis; fixing the semifinished product on a contact carrier (104) such that the second electrically conductive material is connected to the contact carrier; and reshaping the welded semifinished product so as to form the contact element (100), wherein a contact area (106), which is accessible for a mating contact, is formed by the first electrically conductive material.