An electrical snap on switch includes a pair of associated contact elements, the contact elements include a fixed contact element and a movable contact element arranged facing the fixed contact element and that may come into contact with the fixed contact element for establishing a first conductive path. The snap on switch may also include a snap-action switching device that includes a tilting driving member pivotally mounted around a horizontal axis between an upper position and a lower position. The movable contact element is a movable portion of an elastically deformable conductive blade. The driving member includes a cam, which cooperates with a cam follower portion of the blade to deform or relax the blade, to cause the movable contact to come into contact, or out of contact, with the fixed contact element, therefore to realize switching.

A temperature switch includes an elastically deformable movable plate, a movable contact on the movable plate, a fixed contact facing the movable contact, a thermally deformable member, a vibration suppression section, and a cover. The thermally deformable member is elastically deformed in accordance with a temperature change to elastically deform the movable plate such that the movable contact is in contact with the fixed contact or spaced apart from the fixed contact. The vibration suppression section suppresses vibrations of the movable plate by contacting a fixed-edge side when the movable plate is elastically deformed to shift the movable plate from being in contact with the fixed contact to being spaced apart therefrom. The cover surrounds the movable and fixed contacts, and the vibration suppression section is a projecting section provided on the cover.

A single or multiple pole switching device which includes a switch chamber with an arc extinguishing device for each pole, wherein the switch chamber has two lateral walls between which a cage is arranged that is provided for mounting a movable contact bridge, where contacts are arranged on the contact bridge, where the arc extinguishing device has a plurality of quenching plates, the ends of which are accommodated in a pocket arrangement, where the lateral walls have a support for laterally supporting the cage in a direction transverse with respect to the switching direction of the contacts and parallel to the lateral walls, where the pocket arrangement is a separate component from the cage, which pocket arrangement is spaced apart from the cage such that it does not provide such lateral support for the cage, such that a cost-effective and reliable single or multiple pole switching device is provided.

An electromagnetic relay includes a base, an electromagnet block having a spool with a through hole opening at a flange portion thereof and mounted on an upper surface of the base, a movable iron piece, a movable contact piece rotatable integrally with the movable iron piece, a movable contact fixed to a free end of the movable contact piece, and a fixed contact fixed to a fixed contact terminal and contactable with and separable from the movable contact along with rotation of the movable contact piece. Insulating ribs project from an inward facing surface of a spacer integrally formed with the movable iron piece and an outward facing surface of the flange portion respectively such that the insulating ribs intercept a straight line connecting a magnetic pole portion projecting through the through hole and the fixed contact or the fixed contact terminal with a shortest distance.

A longitudinal switch for an electric contact locking and position changing system was designed to position securely the movable switch elements (7), which are urged by springs (5) and a rack (1) and toothed gear (8) mechanism for moving a vertical shaft (9), acting upon fixed elements (contacts) (16) of an electrically insulating rail surface (15). Positions are changed by turning a control button (39) and the toothed gear (8), causing the vertical shaft (9) to rotate, thus moving the rack (1) and causing the movable elements (7) to slide on the semicircular surface (17) of the fixed elements (16), overcoming the force of the springs (5) and compressing them. Once the gap between the fixed elements (16) is located, the springs (5) push back, keeping the movable elements (7) locked and ensuring the effective electric contact with the electric current passing through these points of contact.

A three-position vacuum switch for realizing external grounding of a load side by using a connected busbar overcomes the problems in the prior art that load side grounding is realized depending on the opening and closing of a vacuum arc extinguishing chamber, a misoperation easily occurs because an operator cannot see the grounding situation intuitively, and when an operating mechanism machine has a problem, it needs to have a grounding line plugged in externally, which cause inconvenient operations and huge safety risks, characterized in that a connected busbar is hinged on front and back sides of a load socket, the vacuum arc extinguishing chamber is connected to the connected busbar by using a pin, the connected busbar is electrically connected to a grounding socket to realize primary grounding, and the vacuum arc extinguishing chamber is electrically connected to the grounding socket to realize auxiliary grounding.

An electromagnetic relay includes a base, an electromagnetic block disposed on an upper surface of the base, a movable iron piece that rotates based on excitation/non-excitation of the electromagnetic block, a movable contact piece that rotates integrally with the movable iron piece, a movable contact fixed to a free end of the movable contact piece, a fixed contact disposed so as to come into or out of contact with the movable contact in association with rotation of the movable contact piece, and a magnetic field generation unit disposed so as to attract an arc generated between the movable contact and the fixed contact in a direction that, as seen from the fixed contact, is opposite to the movable contact and the base.

An electromagnetic relay includes a base, an electromagnet block mounted on an upper surface of the base, a movable iron piece configured to be rotatable based on excitation and non-excitation of the electromagnet block, a movable contact piece configured to be rotatable integrally with the movable iron piece, a movable contact fixed to a free end portion of the movable contact piece, and a fixed contact fixed to a fixed contact terminal, and disposed so as to be separable from and contacted with the movable contact along with rotation of the movable contact piece. A permanent magnet configured to induce an arc generated between the movable contact and the fixed contact in a predetermined direction is housed in a recessed portion formed on a lower surface of the base in a direction toward a side opposite to the movable contact as viewed from the fixed contact terminal.

The invention refers to a disconnector pole (214) for a gas insulated switchgear and a disconnector unit comprising at least two of the aforementioned disconnector poles (214). Moreover, the invention refers to a gas insulated switchgear comprising at least one aforementioned disconnector pole (214) or at least one aforementioned disconnector unit and/or a circuit breaker. The disconnector pole (214) is movable between two contact positions. Moreover, the disconnector pole (214) comprises a metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) to be connected to contacts in the two contact positions. The metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) comprises an outer surface (256). The disconnector pole (214) also comprises at least one metallic housing (219), wherein at least 50% of the entire outer surface (256) of the metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) is arranged in the metallic housing (219).

Systems and methods are disclosed for user configurable pressure sensitive keys and techniques for controlling these keys for keyboards. User configuration information, including information for user configurable granularity scales for pressure levels, can be communicated from a host system to the keyboard and stored for later use by a keyboard controller to control the operation of the pressure sensitive keys. In this way, greater control of the pressure sensitive keys can be provided. This configurability is of particular use for applications such as where the keyboard is being used for gaming by a user running a gaming application on an information handling system.