The disclosure relates to a battery pack, comprising a casing; a built-in circuit disposed inside the casing; a consumable component disposed inside the casing and connected in series to the built-in circuit, wherein an opening corresponding to the consumable component is provided on the casing; a safety switch disposed inside the casing, wherein an on/off of the safety switch controls a connection/disconnection of the built-in circuit; and a cover body disposed corresponding to the opening, wherein the cover body has a first state in which the cover body is capped at the opening, so that the safety switch is switched on and the built-in circuit is connected, and a second state in which the cover body is detached from the opening, so that the safety switch is switched off and the built-in circuit is disconnected.

The disclosure relates to a battery pack, comprising a casing; a built-in circuit disposed inside the casing; a consumable component disposed inside the casing and connected in series to the built-in circuit, wherein an opening corresponding to the consumable component is provided on the casing; a safety switch disposed inside the casing, wherein an on/off of the safety switch controls a connection/disconnection of the built-in circuit; and a cover body disposed corresponding to the opening, wherein the cover body has a first state in which the cover body is capped at the opening, so that the safety switch is switched on and the built-in circuit is connected, and a second state in which the cover body is detached from the opening, so that the safety switch is switched off and the built-in circuit is disconnected.

A superconducting magnet apparatus includes a plurality of superconducting magnet coil sections connected in series and housed within a cryogenically cooled, vacuum container. A power source generates a current. A first lead is electrically connected to the superconducting magnet coil sections. A second lead is enclosed entirely within the vacuum container. The second lead has a first section and a second section, and the first section is electrically connected to the power source. The second section is electrically connected to the first lead, and rigidly connected to a linear displacement device enclosed entirely within the vacuum container. The linear displacement device linearly displaces the second section relative to the first section, so that the first section contacts the second section thereby electrically connecting the first and second sections, or by creating a gap between the first section and second section thereby electrically disconnecting the first section from the second section.

High-voltage switch with a first terminal contact connected to a first fixed contact, a second terminal contact connected to a second fixed contact, a bridge contact arranged between the first fixed contact and the second fixed contact and connecting the first fixed contact to the second fixed contact, the bridge contact being pressed against at least one of the fixed contacts with a contact pressing force and being able to be released from at least one of the fixed contacts with a pull-off force, and a drive acting on the bridge contact in the direction of the pull-off force. A measuring circuit senses a voltage drop between the fixed contacts in case of levitation between at least one fixed contact and the bridge contact and depending on the sensed voltage drop controls the drive in such a way that the drive acts on the bridge contact with a force in the direction of the pull-off force.

High-voltage switch with a first terminal contact connected to a first fixed contact, a second terminal contact connected to a second fixed contact, a bridge contact arranged between the first fixed contact and the second fixed contact and connecting the first fixed contact to the second fixed contact, the bridge contact being pressed against at least one of the fixed contacts with a contact pressing force and being able to be released from at least one of the fixed contacts with a pull-off force, and a drive acting on the bridge contact in the direction of the pull-off force. A measuring circuit senses a voltage drop between the fixed contacts in case of levitation between at least one fixed contact and the bridge contact and depending on the sensed voltage drop controls the drive in such a way that the drive acts on the bridge contact with a force in the direction of the pull-off force.

An animal trap sensor includes a base having a distal end and a proximal end, a switch having a first metallic element and a second metallic element, and a signal unit, in which, when the first metallic element contacting the second metallic element, thereby forming a closed circuit, such that the signal unit transmits a signal to an off-site receiver. Or, an animal trap sensor includes a first portion and a second portion electrically connected with a signal unit including a power supply, in which, when the first and the second portions are disposed at a first distance between each other, thereby generating an output property, in which, when the first and the second portions are disposed at a second distance between each other, which is different from the first distance, thereby changing the output property and causing the signal unit to transmit a signal to an off-site receiver.

An animal trap sensor includes a base having a distal end and a proximal end, a switch having a first metallic element and a second metallic element, and a signal unit, in which, when the first metallic element contacting the second metallic element, thereby forming a closed circuit, such that the signal unit transmits a signal to an off-site receiver. Or, an animal trap sensor includes a first portion and a second portion electrically connected with a signal unit including a power supply, in which, when the first and the second portions are disposed at a first distance between each other, thereby generating an output property, in which, when the first and the second portions are disposed at a second distance between each other, which is different from the first distance, thereby changing the output property and causing the signal unit to transmit a signal to an off-site receiver.

A circuit breaker includes: first and second contacts moveable relative to each other along an axis of the circuit breaker between an open and closed configuration and defining an arcing region in which an arc is formed during current breaking operation; a nozzle directing a flow of quenching gas onto the arcing region during current breaking operation, a diffusor downstream of the nozzle for further transporting the quenching gas within the arcing region and/or downstream of the arcing region, and a mechanical swirling device arranged downstream of the nozzle and at least partially in the diffusor for imparting a swirl onto the quenching gas flowing along the diffusor, the mechanical swirling device having an axial overlap with the second contact in the open configuration of the circuit breaker.

A circuit breaker includes: first and second contacts moveable relative to each other along an axis of the circuit breaker between an open and closed configuration and defining an arcing region in which an arc is formed during current breaking operation; a nozzle directing a flow of quenching gas onto the arcing region during current breaking operation, a diffusor downstream of the nozzle for further transporting the quenching gas within the arcing region and/or downstream of the arcing region, and a mechanical swirling device arranged downstream of the nozzle and at least partially in the diffusor for imparting a swirl onto the quenching gas flowing along the diffusor, the mechanical swirling device having an axial overlap with the second contact in the open configuration of the circuit breaker.

Disclosed herein is a flexible and soft material-based pressure sensor and/or switch assembly that can be used for soft goods as a soft switch. The material selection and design enhances the maximum bending ability and squeezing ability of the pressure sensor/switch and the sensor/switch is made to withstand heavy washes while maintaining its functionality of switching with a light touch based on the use of a waterproof stacking assembly that contains a piezoresistant material, electrodes and other components.