An arrangement is for releasable interconnection. In an embodiment, the arrangement includes an outer ring having an inner diameter; and an inner ring having an outer diameter not greater than the inner diameter of the outer ring. One of the outer ring and the inner ring includes at least a first magnet ring and a second magnet ring, spaced apart in an axial direction leaving an axial space there between. The other of the outer ring and the inner ring includes at least one third magnet ring. The first and the second magnet rings are oriented such that same magnetic poles face each other.

A circuit assembly includes one or more electrical conductors. Each of the electrical conductors has a first axial end and a second axial end; the first axial end is disposed opposite the second axial end. The assembly further comprises a non-electrically conductive retainer component operable to: i) retain the electrical conductor and ii) contact a lateral side and/or tip of the electrical conductor onto a conductive pad of a circuit board. The retainer component exerts an appropriate force with respect to the one or more electrical conductors such that, a respective lateral side and/or tip of each of the electrical conductors contact a corresponding electrically conductive pad on the circuit board.

Disclosed herein are devices and methods for a multiple contact probe. The multiple contact probe may include a first contact interface and a second contact interface. The first contact interface may be electrically isolated from the second contact interface. A plunger assembly may be slidably engaged between the first contact interface and the second contact interface. The plunger assembly may be slidable between an extended configuration and a retracted configuration along a longitudinal direction of the plunger assembly. The plunger assembly may include a first electrical contact and a second electrical contact. The first electrical contact may be in electrical contact with the first contact interface and the second electrical contact may be in electrical contact with the second contact interface. A bias element may be engaged with the plunger assembly, for instance, the bias element may be configured to bias the plunger assembly to the extended configuration.

An improved BGA spring probe pin with a spring actuated solder ball receptacle that grips the sides of the solder ball during probing. A method of operating a BGA prober with improved BGA spring probe pins.

A testing apparatus includes a chip carrying device and a pressing device. The chip carrying device includes a circuit board and a plurality of electrically connecting units that are disposed on the circuit board and each can receive a chip. The pressing device includes a cover and an abutting member disposed between the cover and the electrically connecting units. The cover is disposed on the circuit board to jointly define an accommodating space that accommodates the abutting member and the electrically connecting units. The cover can be connected to an air suction apparatus for expelling air in the accommodating space. When the air suction apparatus performs a suction operation to expel the air in the accommodating space, the abutting member is abutted against the electrically connecting units and the chips so as to connect each of the electrically connecting units and the corresponding chip.

A modular sensor system comprising a plurality of modules, the plurality of modules comprising one or more sensors, one or more energy harvesters, one or more energy storage devices, one or more wireless radios, and one or more electronics devices, wherein the one or more energy harvesters comprise a photovoltaic cell; and one or more blind-mate connectors contained within each of the plurality of modules, wherein the one or more blind-mate connectors comprise an electrical connector to transmit power and/or data and configured to connect two modules of the plurality of modules together.

The invention discloses an armature circuit in an electric tool and a power socket of the electric tool using the armature circuit, comprising a power supply and a motor. Two electrodes of the power supply are each provided with a connection structure connected to an output part. One connection structure is a multi-contact on/off controllable movable contact structure, and the other one is a double-faced multi-contact structure. According to the armature circuit, the internal resistance of the armature circuit of the motor is greatly reduced, the hardness of running characteristics of the motor is enhanced, and the working efficiency of the tool is improved; due to decreasing of the internal resistance, the current loss of the armature circuit is reduced, and the temperature rise of an electric appliance and contacts is reduced; with the same working efficiency, the battery capacity can be saved, and the battery cost is reduced.

A conductive connection terminal is extensible and compressible in a longitudinal direction, and includes: a first contact member including a first tip portion configured to contact with one electrode of a contact target, and a first base end portion; a second contact member including a second tip portion configured to contact with another electrode of the contact target, and a plurality of tongue parts configured to contact with the first base end portion; an elastic member configured to extend and compress the first contact member and the second contact member in the longitudinal direction; and a load applying unit configured to apply a load to the tongue parts in a direction bringing the tongue parts into contact with an outer circumference of the first base end portion.

Disclosed are an elastic contact spring and an adapter using the contact spring, The elastic contact spring comprises two contact parts and a connecting part located between the two contact parts, the two contact parts are arc-shaped and their peripheral surfaces form jacking surfaces in conductive contact with corresponding connectors, the two contact parts are in transition connection via the connecting part and their respective arc-shaped openings are respectively located on two sides of the connecting part. When the elastic contact spring is pressed in use, the arc-shaped contact parts and the connecting part of the elastic contact spring all form deformation parts to disperse the deformation stress, thereby prolonging the service life of the elastic contact spring, and tho elastic contact spring, which is only formed by simple arcs, does not have a special requirement for materials.

The present disclosure relates to an exemplary connector for an electronic cigarette, and the connector is configured for connecting an atomizer and a power supply. The connector includes a substrate served as a first electrode, a second electrode, a third electrode, and a first elastic element. The substrate and the second electrode are configured for inputting power to the atomizer. The third electrode is insulated from the substrate. The second electrode nests the third electrode. The third electrode is configured for feeding back an electronic signal, and is an elastic electrode. The third electrode is movable along an axial direction of the connector relative to the second electrode. The first elastic element nests the second electrode, and is configured such that the second and the third electrodes as a whole are movable along an axial direction of the connector relative to the substrate.