115results about How to "Reliable breaking" patented technology

For an automobile there is provided a fire extinguisher which is rapidly activatable in combination with a device for cutting a seatbelt and a device for breaking open a windshield.

Provided is a glass roll utilizing a flanged roll core, and reliably inhibiting a glass film from breaking from an end portion in a width direction thereof as an origin of breakage. A glass roll (1) is formed by winding a glass film (4) and a cushion sheet (5), under a state of being superposed, around a roll core (3) including a flange (2) at each end portion thereof, in which an end portion in a width direction of the glass film (4) is separated from the flange (2) on each side in the width direction of the glass film (4), and the cushion sheet (5) is extended beyond the end portion in the width direction of the glass film (4) to the flange (2) side, to thereby form an extension portion (5a).

A sealed cell having a safety mechanism is provided. The safety mechanism has a non-resealable valve structure formed in a sealing plate that seals the cell. The valve structure is broken as soon as the internal pressure reaches or exceeds a predetermined value so as to permit the internal gas to be released outside. The valve structure has at least one dome protruding toward the interior of the cell, which in turn has at the periphery thereof a break groove for facilitating the breakage of the valve structure. This makes the valve structure highly responsive to the internal pressure and causes to form a break-opened orifice of a sufficient area at the time of operation in response to the increased internal pressure. The valve structure is not unnecessarily broken by the impacts of, for example, dropping. As a result, the safety of the sealed cell is significantly improved.

An excitation fuse integrated with an arc extinguishing melt comprises an upper shell and a lower shell which are successively arranged from top to bottom. A conductive plate is arranged between the upper shell and the lower shell. An accommodating cavity with a downward opening is arranged in the upper shell, and the accommodating cavity with an upward opening is arranged in the lower shell. An ignition explosion device and a piston are successively arranged in the accommodating cavity of the upper shell from top to bottom. The accommodating cavity of the lower shell is filled with an arc extinguishing medium. A sealing element for sealing the arc extinguishing medium is arranged in the accommodating cavity of the lower shell. The sealing element is provided with the accommodating cavitywhich is provided with the upward opening and is used for making the conductive plate fall off after disconnection. The melt is arranged in the arc extinguishing medium, and two ends of the melt passthrough the upper end surface of the lower shell and are connected with a bottom of the conductive plate in parallel. A disconnected part of the conductive plate after being impacted and disconnectedby the piston is located between connection parts of the two ends of the melt and the conductive plate. The fuse has advantages that influences of air pressure, temperature and humidity on the fuse are small, reliable breaking can be achieved under various working conditions, and a breaking capacity is high.

The invention belongs to the technical field of high-voltage power supply and particularly relates to a current-limiting hybrid power controller. The current-limiting hybrid power controller combines a current limiter and a hybrid switch. Under the condition of normal operation, the current limiter amounts to a lead, and the circuit is connected and disconnected by the hybrid switch composed of a solid-state switch and a mechanical switch in parallel. Under the condition of current surge in load short-circuit, capacitor electrifying and the like, the current limiter works at the current limit state, the circuit current is limited, a direct-current contact reliably cuts off load when in load short-circuit, the capacitor can be charged in a current limiting mode when being charged, and overhigh surge current or temperature rise of the solid-state switch is avoided.

A sensor for detecting a rupture or length change in a belt. The sensor has a movable transmission element operatively connected to the belt, that acts on an electrical switch having a contact system in the event of a length change or rupture of the belt. The contact system comprises a switching contact with a contact surface arranged on a first end, and an associated fixed contact. The transmission element acts on the second end of the leaf spring. A limb extends approximately from the first end of the leaf spring in the direction of the second end, and a further limb extends from the second end of the leaf spring in the direction of the first end. The free ends of the two limbs are clamped offset from one another on a carrier part of the switch, such that the switching contact switches over in a bistable manner.

A sensor for detecting a rupture or length change in a belt. The sensor has a movable transmission element operatively connected to the belt, that acts on an electrical switch having a contact system in the event of a length change or rupture of the belt. The contact system comprises a switching contact with a contact surface arranged on a first end, and an associated fixed contact. The transmission element acts on the second end of the leaf spring. A limb extends approximately from the first end of the leaf spring in the direction of the second end, and a further limb extends from the second end of the leaf spring in the direction of the first end. The free ends of the two limbs are clamped offset from one another on a carrier part of the switch, such that the switching contact switches over in a bistable manner.