An electrical connector includes an insulating seat and at least one conductive terminal provided therein. The insulating seat includes a rear wall and two side walls, surroundingly forming a mating space. Each side wall includes an extending arm and an elastic arm. The elastic arm has a first arm extending forward from the extending arm and a second arm bending reversely from the first arm and extending backward. The second arm is connected to the rear wall. An opening slot is formed between the first arm and the extending arm and runs forward therethrough. A through slot is formed between the second arm and the first arm. A buckling portion is formed at a side of the second arm away from the first arm to correspond to the through slot and the opening slot in a left-right direction. The conductive terminal has a contact portion exposed to the mating 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.

An optical module includes a housing, an optical component, and a power supply component. The housing is provided with a first socket and a second socket. The optical component includes a first optical connector, an optical-to-electrical conversion component, and a second optical connector that are sequentially connected. The power supply component includes a first electrical connector, a power supply line, and a second electrical connector that are sequentially connected. Both the optical-to-electrical conversion component and the power supply line are located in the housing, the first optical connector is located in the first socket, a part that is of the first electrical connector and that is exposed from the housing is located at any position at the first end of the housing.

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.

An optical module includes a housing, an optical component, and a power supply component. A second end of the housing is provided with a second socket, and the second end of the housing is an end part configured to be inserted into an optical communication device. The optical component includes a second optical connector, and the power supply component includes a second electrical connector. Both the optical component and the power supply component are located in the housing, both the second optical connector and the second electrical connector are located in the second socket, and positions of the second optical connector and the second electrical connector are independent of each other.

A composite module includes a housing, an optical component, and a power supply component. A first end of the housing is provided with a first socket, and a second end of the housing is provided with a second socket. The optical component includes a first optical connector, an optical-to-electrical conversion component, and a second optical connector. One end of the optical-to-electrical conversion component is connected to the first optical connector, and the other end of the optical-to-electrical conversion component is connected to the second optical connector. The power supply component includes a first electrical connector, a power supply line, and a second electrical connector. One end of the power supply line is connected to the first electrical connector, and the other end of the power supply line is connected to the second electrical connector.

Provided is a floating structure of a coaxial connector having a floating function and ensuring a reliable connection and water cutoff property are ensured. The floating structure of the coaxial connector includes: a plug introduction hole having an inner diameter larger than an outer diameter of the plug; an enlarged diameter hole communicating with the tip side of the plug introduction hole; a locking ring fixed in the enlarged diameter hole; a slider having a slide ring disposed movably in the axial direction and the axial radial direction; and an energizing elastic member that energizes the slide ring toward the locking ring. The plug body is coupled to the slider, and the plug body is held in the plug insertion part movably in the axial direction and the axial radial direction.

The present disclosure provides an electrical connector and an electrical connector assembly, the electrical connector includes a conductive seat, a movable contact pin and a spring member. The conductive seat includes a first receiving section, a second receiving section, at least one connection arm connected between the first receiving section and the second receiving section, and two elastic contact arms bending from one of the first receiving section and the second receiving section toward the other of the first receiving section and the second receiving section and extending; a through hole is provided to a front end of the first receiving section. The movable contact pin includes a mating portion, a tail portion and a connecting portion connected between the mating portion and the tail portion; the movable contact pin is mounted in the conductive seat in a manner that the movable contact pin can move back and forth in the conductive seat, the mating portion protrudes forwardly from the through hole; the two elastic contact arms elastically press against the connecting portion whether in a mating state or a non-mating state. The spring member is received in the conductive seat and used to elastically drive the movable contact pin to move forwardly in the conductive seat. The present disclosure may realize stable reliable electrical connection.

The present disclosure provides an electrical connector and an electrical connector assembly, the electrical connector includes a conductive seat, a movable contact pin and a spring member. The conductive seat includes a first receiving section, a second receiving section, at least one connection arm connected between the first receiving section and the second receiving section, and two elastic contact arms bending from one of the first receiving section and the second receiving section toward the other of the first receiving section and the second receiving section and extending; a through hole is provided to a front end of the first receiving section. The movable contact pin includes a mating portion, a tail portion and a connecting portion connected between the mating portion and the tail portion; the movable contact pin is mounted in the conductive seat in a manner that the movable contact pin can move back and forth in the conductive seat, the mating portion protrudes forwardly from the through hole; the two elastic contact arms elastically press against the connecting portion whether in a mating state or a non-mating state. The spring member is received in the conductive seat and used to elastically drive the movable contact pin to move forwardly in the conductive seat. The present disclosure may realize stable reliable electrical connection.

A terminal includes a first connection section having a first connection central axis extending centrally though the first connection section along a longitudinal direction and a shoulder having a first surface extending normal to the longitudinal direction at an end of the first connection section. The shoulder has a width greater than the first connection section in a width direction perpendicular to the longitudinal direction and has a shoulder central axis extending centrally though the shoulder along the longitudinal direction. The shoulder central axis is offset from the first connection central axis in the width direction.