A cable management system comprises: at lest one cable management unit which has at least one receiving space for receiving at least one drawer unit, wherein for the purpose of providing a cable management system with improved characteristics regarding flexibility, the cable management unit comprises at least one rear cable manager, which is configured to feed at least one cable to a rear side of the receiving space and which is mountable in at least two different orientations with respect to the receiving space.

A cable management system comprises: at lest one cable management unit which has at least one receiving space for receiving at least one drawer unit, wherein for the purpose of providing a cable management system with improved characteristics regarding flexibility, the cable management unit comprises at least one rear cable manager, which is configured to feed at least one cable to a rear side of the receiving space and which is mountable in at least two different orientations with respect to the receiving space.

A method for controlling a target switch assembly in a chain of switch assemblies includes distributing the chain of switch assemblies in a wellbore; placing a controller at a head of the wellbore; making a first decision, at the controller, to actuate a corresponding detonator of the target switch assembly; transmitting, from the controller to the target switch assembly, a fire command to activate the corresponding detonator; and making a second decision, locally, at the target switch assembly, to activate the detonator, after the fire command from the controller is received.

A seat belt fastened/unfastened state detection switch includes: a printed substrate that includes a circuit for detecting a fastened/unfastened state of a seat belt; a rotor that is rotatably attached to the printed substrate, includes a contact portion, the contact portion coming into contact with a tongue of the seat belt, and rotates in a forward direction in accordance with pushing of the tongue into a buckle; a spring that makes the rotor, the rotor being in a rotated state in the forward direction, rotate in a reverse direction in accordance with pulling of the tongue from the buckle; and an electric brush that is attached to a surface of the rotor, the surface facing the printed substrate, and includes a leg portion whose contact/non-contact state with respect to a conductive part of the circuit changes depending on a rotation state of the rotor.

A switch assembly, which is part of a chain of switch assemblies, includes a communication unit (CU) configured to receive, from an external controller, a fire command to activate a detonator and a computing core (CC) configured to locally make a decision whether or not to activate the detonator, after receiving the fire command to activate the detonator.

A method for controlling a target switch assembly in a chain of switch assemblies includes distributing the chain of switch assemblies in a wellbore; placing a controller at a head of the wellbore; making a first decision, at the controller, to actuate a corresponding detonator of the target switch assembly; transmitting, from the controller to the target switch assembly, a fire command to activate the corresponding detonator; and making a second decision, locally, at the target switch assembly, to activate the detonator, after the fire command from the controller is received.

A seat belt fastened/unfastened state detection switch includes: a printed substrate that includes a circuit for detecting a fastened/unfastened state of a seat belt; a rotor that is rotatably attached to the printed substrate, includes a contact portion, the contact portion coming into contact with a tongue of the seat belt, and rotates in a forward direction in accordance with pushing of the tongue into a buckle; a spring that makes the rotor, the rotor being in a rotated state in the forward direction, rotate in a reverse direction in accordance with pulling of the tongue from the buckle; and an electric brush that is attached to a surface of the rotor, the surface facing the printed substrate, and includes a leg portion whose contact/non-contact state with respect to a conductive part of the circuit changes depending on a rotation state of the rotor.

The invention relates to an electrical switch (30) for an electrical appliance (2), in particular for a power tool, which has at least two switching contacts (34, 36), which can be jointly moved between a switched-off position (38), in which the switching contacts (34, 36) have no electrical connection to a counter contact (42) of the switch (30), and a switched-on position (40), in which the switching contacts (34, 36) are electrically connected to the counter contact (42). To maintain a contact resistance of the switch (30) at a largely constant value over the service life, it is proposed to arrange and/or design the switching contacts (34, 36) and/or the counter contact (42) such that, when the switch (30) transitions between the switched-off position (38) and the switched-on position (40), the switching contacts (34, 36) successively enter into electrical contact with the counter contact (42) or successively break the electrical contact.

An electrical contact system includes a pair of static contacts, a rotatable member disposed between the static contacts and rotatable about a rotation axis between a first position and a second position, and a movable contact mounted on and rotated with the rotatable member. A pair of opposite ends of the movable contact are in electrical contact with the static contacts when the rotatable member is rotated to the first position. The ends of the movable contact are separated from the static contacts when the rotatable member is rotated to the second position. The movable contact has a Z-shape and is slidably mounted on the rotatable member. The movable contact slides under a pushing force from a first static contact of the static contacts toward a second static contact of the static contacts to be in electrical contact with the second static contact.

An electrical contact system includes a pair of static contacts, a rotatable member disposed between the static contacts and rotatable about a rotation axis between a first position and a second position, and a movable contact mounted on and rotated with the rotatable member. A pair of opposite ends of the movable contact are in electrical contact with the static contacts when the rotatable member is rotated to the first position. The ends of the movable contact are separated from the static contacts when the rotatable member is rotated to the second position. The movable contact has a Z-shape and is slidably mounted on the rotatable member. The movable contact slides under a pushing force from a first static contact of the static contacts toward a second static contact of the static contacts to be in electrical contact with the second static contact.