Provided in the present application is an electrical switch, comprising at least a driving device, a moving contact, a static contact and a housing, wherein the static contact is arranged on the housing; the driving device is mechanically connected to the moving contact; and when driven by the driving device to electrically contact or separate from the static contact, the moving contact performs a two-degree-of-freedom motion.
The present application discloses an arc extinguishing device for extinguishing an arc in an electric switch, and an electric switch. The arc extinguishing device at least comprises an arc extinguishing grid plate assembly, a moving contact, a static contact, and an insulating housing. An initial arc column is generated when the moving contact and the static contact are just separated. A plurality of metal arc extinguishing grid plates in the arc extinguishing grid plate assembly stacked to form at least one bending structure, and the plurality of metal arc extinguishing grid plates are arranged directly or indirectly along at least two adjacent inner sides in the insulating housing. The static contact is in the shape of at least one bending structure. A first metal arc extinguishing grid plate arranged at a first end of the arc extinguishing grid plate assembly is close to or adjacent to a bending conductor on the static contact, and is also arranged close to or adjacent to the initial arc column. The extension directions of the first metal arc extinguishing grid plate and the bending conductor are the same or form an included angle.
The present application discloses a moving contact of an electric switch, and a double-break rotary disconnector. The moving contact is provided with a rotation center point; an axis is symmetrically emitted in opposite directions from the rotation center point; the moving contact extends from the rotation center point to two sides along the axis to form two end portions; the two end portions are each provided with a bulge for contact electric conduction and a bulge-shaped arc striking portion for transferring and lengthening an electric arc; the bulges and the bulge-shaped arc striking portions are respectively distributed on two sides of the axis y; and the extension directions of the bulges at the two end portions are opposite.
H01H 9/30 - Moyens pour éteindre ou empêcher des arcs entre pièces traversées par le courant
H01H 9/34 - Éléments fixes pour restreindre ou sous-diviser l'arc, p. ex. plaques-barrières
H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails
H01H 31/26 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs avec contact mobile demeurant électriquement connecté à une ligne en position d'ouverture de l'interrupteur
A storage battery, which at least comprises a housing (10), a plurality of battery packs (20) connected in series and/or in parallel, at least two power supply terminals, at least one electronic controller (30), and at least one contact switch (40) connected to a main circuit and controlled by the electronic controller (30). The housing (10) is at least composed of a base seat (12) and a cover plate (11). The battery packs are disposed at the lower part of the base seat (12). The at least two power supply terminals are disposed on the cover plate (11). The electronic controller (30) is disposed in a cavity at the upper part of the base seat (12). The switch (40) is disposed on the base seat (12) and/or the cover plate (11) and/or the electronic controller (30). The storage battery is provided with a mechanical switch configured in the housing. Compared to an electronic switch, the mechanical switch is less susceptible to the influence of an electric current. The reliability of a control system is greatly increased, and damage to the storage battery caused by large electric current discharging or charging is avoided.
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H02H 7/18 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour pilesCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour accumulateurs
5.
ELECTRIC SWITCH HAVING MULTIPLE SUPERIMPOSED SUCTION FORCES
The present application provides an electric switch having multiple superimposed suction forces, comprising at least an insulating housing, an operating mechanism, a wire inlet end, a wire outlet end, a movable contact, and a chuck. A conductor on the wire inlet end is connected to the chuck, and a conductor on the wire outlet end is connected to the movable contact. The movable contact is inserted into or moved out of the chuck under the action of an operating mechanism. Magnetic conductive members are arranged around the chuck. When a large current flows through the chuck, due to the same direction of currents flowing through the chuck, the chuck generates a suction force to clamp the movable contact, and meanwhile, the magnetic conductive members around the chuck are magnetized to generate a suction force so that the chuck further clamps the movable contact. The two suction forces are superimposed to offset the electric repulsion force between contacts, thereby preventing burning loss caused by an arc generated by repulsion of the contacts due to the large current, and improving the short-time tolerance capability of the switch.
H01H 1/54 - Moyens pour accroître la pression de contact, empêcher la vibration des contacts, maintenir ensemble les contacts après l'entrée en contact, ou pour ramener les contacts à la position d'ouverture par force magnétique
Disclosed is a switch. The switch comprises an insulating housing and an internal element provided in the insulating housing, the insulating housing being provided with at least one phase pole, each phase pole being provided with at least one arc channel; the arc channel is a channel which extends from the bottom of an arc extinguishing chamber to a cover direction for a certain distance, then turns around and extends to a bottom direction for a certain distance, then turns around and extends to a rear end direction for a certain distance to an outlet or/and extends from the bottom of the arc extinguishing chamber to the cover direction for a certain distance, then turns around and extends to the bottom direction for a certain distance, and then turns around and extends to the cover direction for a certain distance to the outlet. According to the invention, the arc can be completely dissipated and absorbed by utilizing an internal channel space of the switch, effectively overcoming the problem in the existing structure that the arrangement of an arc nozzle of an arc extinguishing device directly above a wire inlet end easily causes the arcing distance to be large and the occurrence of interphase short circuit during high-voltage and high-current breaking, so that the switch realizes zero arcing, and the safety and reliability during breaking are greatly improved.
The present application relates to a cable, comprising a conductive wire and an insulating layer. The conductive wire is wrapped by the insulating layer; at least one non-metal wire bundle and/or metal wire bundle is provided in an internal cavity, in a peripheral recess or at the outside of the conductive wire. This solution allows for completion of electric arc sensing and delivery within a short period of time. False determination by conventional electric arc detection devices caused by factors such as load, noise interference, and weather change is effectively avoided, and normal operation of a power apparatus is guaranteed. This solution facilitates blocking and extinguishing of electric arcs generated by cables.
The present application relates to a cable, comprising a conductive wire and an insulating layer, wherein the conductive wire is wrapped in the insulating layer; at least one conductive non-metal wire harness and/or conductive metal wire harness is arranged in an inner cavity or a peripheral groove of the conductive wire or arranged outside the conductive wire; the non-metal wire harness and the metal wire harness are wrapped in a second insulating layer; and when the temperature of the second insulating layer exceeds 120°C due to heat emission of the conductive wire or external heat emission, after the insulating property of the second insulating layer is reduced until damage occurs, the non-metal wire harness, the metal wire harness and the conductive wire are in conductive communication with one another by means of an ionized arc channel. The present solution completes electric arc sensing and transmission within an extremely short time, thereby effectively avoiding misjudgment of a traditional electric arc detection device caused by the influences of factors, such as loads, noise interference and changes in weather, and ensuring the normal operation of an electrical apparatus. The present solution is conducive to blocking and extinguishing an electric arc when the cable generates the electric arc.
A vacuum switch tube for a circuit breaker and a manufacturing method for an outer casing thereof, which belong to the technical field of vacuum switch tubes. The vacuum switch tube for a circuit breaker comprises a casing body (1), a moving end assembly and a fixed end assembly, the casing body (1) comprises an outer insulated portion (11) and an inner insulated portion (12) arranged within the outer insulated portion (11), the fixed end assembly and the moving end assembly are both arranged within the outer insulated portion (11), the moving end assembly and the fixed end assembly establish mutual contact so as to implement an electrical pathway, and the moving end assembly and the fixed end assembly separate so as to implement an electrical open circuit; a sealed chamber usable for arc extinguishing is formed between the outer insulated portion (11), the inner insulated portion (12), the moving end assembly and the fixed end assembly, and by means of the arrangement of the inner insulated portion (12), creepage distance can be increased as much as possible, while also reducing the size of the vacuum switch tube to a relatively large extent, and consequently allowing manufacturing costs to be reduced.
A circuit breaker, belonging to the technical field of low-voltage electrical appliances. The circuit breaker comprises an insulating housing (100), and an operating mechanism (200), a contact system (300), an arc extinguishing system (400), an overcurrent protection system (500), a wire outlet end (600) and a wire inlet end (700) which are provided in the insulating housing (100); an arc channel (800) is provided at the bottom of the insulating housing (100). In the present application, an arc extinguishing chamber is provided at a lower portion, and the arc is ejected from the bottom electric arc channel (800), the arrangement of an wire inlet end arc ejecting opening is cancelled, the safe distance can be reduced to zero, and the space of a switch cabinet can be reduced; moreover, the length of a connection plate and a bus bar connected to the circuit breaker can be shortened, the amount of copper used for the switch cabinet is reduced, and costs are reduced.
Disclosed in the present application is a phase-change switch, comprising: an insulating housing, a power wire inlet end, a power wire outlet end, at least one movable contact, and at least two stationary contacts. The power wire inlet end comprises a first power wire inlet end and a second power wire inlet end, and the power wire outlet end comprises a first power wire outlet end and a second power wire outlet end; the second power wire inlet end is electrically connected to the second power wire outlet end by means of the stationary contacts and the movable contact, the first power wire inlet end is directly and electrically connected to the first power wire outlet end, and the first power wire outlet end and the second power wire outlet end are insulated from each other. According to the phase-change switch of the present application, one power wire outlet end is directly connected to one power wire inlet end, so that only part of current is converted during phase change, and inter-phase current balance is facilitated.
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