A “safe grounding apparatus” (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

A connector device includes a connector housing including a plurality of terminal accommodating chambers, a plurality of terminals accommodated in the plurality of terminal accommodating chambers, and a plurality of electric wires configured to be welded to the respective one of the plurality of terminals. A laser radiation through hole is formed in side walls, each forming the terminal accommodating chambers, the laser radiation through hole being configured to allow the plurality of terminals and the plurality of electric wires to be welded with each other inside the terminal accommodating chambers, and the laser radiation through hole is configured to allow laser light emitted from a laser welding machine disposed outside the connector housing to enter one of the plurality of terminal accommodating chambers.

A connector device includes a connector housing including a plurality of terminal accommodating chambers, a plurality of terminals accommodated in the plurality of terminal accommodating chambers, and a plurality of electric wires configured to be welded to the respective one of the plurality of terminals. A laser radiation through hole is formed in side walls, each forming the terminal accommodating chambers, the laser radiation through hole being configured to allow the plurality of terminals and the plurality of electric wires to be welded with each other inside the terminal accommodating chambers, and the laser radiation through hole is configured to allow laser light emitted from a laser welding machine disposed outside the connector housing to enter one of the plurality of terminal accommodating chambers.

A cable assembly includes a plurality of wires and a plurality of electrical contacts. The electrical contacts include contact sections and wire connecting sections, and the wire connecting sections of the electrical contacts are respectively connected to the wires. Two adjacent electrical contacts for transmitting signals have a first edge distance and an expanded edge distance. The first edge distance is adjacent to the contact sections, and the expanded edge distance is between the first edge distance and the wire connecting sections. In addition, the first edge distance is smaller than the expanded edge distance to improve signal integrity.

A cable assembly includes a plurality of wires and a plurality of electrical contacts. The electrical contacts include contact sections and wire connecting sections, and the wire connecting sections of the electrical contacts are respectively connected to the wires. Two adjacent electrical contacts for transmitting signals have a first edge distance and an expanded edge distance. The first edge distance is adjacent to the contact sections, and the expanded edge distance is between the first edge distance and the wire connecting sections. In addition, the first edge distance is smaller than the expanded edge distance to improve signal integrity.

An industrial connector has a cylindrical metal shield with at least one slot in the rear of the shield for engaging a cable braid. In one embodiment, the shield also has a cable relief cut out of the rear opposite the at least one slot.

A cable connector relates to a field of cable connecting technology. The cable connector includes a main body assembly including an insulating main body and conductive main bodies, a first clamping assembly, and a second clamping assembly. The conductive main bodies are disposed on the insulating main body. Two ends of each of the conductive main bodies extend outwards from bottom portions of the first accommodating groove and the second accommodating groove. The two ends of each of the conductive main bodies are sharp structures. The first clamping assembly includes a first clamping piece movably disposed up and down in the first accommodating groove and a first operating piece disposed on the insulating main body. The second clamping assembly includes a second clamping piece movably disposed up and down in the second accommodating groove and a second operating piece disposed on the insulating main body.

A shield device includes: a first electrical conductor; an electrical insulator that is configured to electrically insulate the first electrical conductor from a second electrical conductor; a first shield connector configured to: directly contact at least 180 degrees of a first circumference of a first shield that surrounds at least two first insulated conductors of a first section of a shielded cable; and electrically connect the first shield with the first electrical conductor; and a second shield connector configured to: directly contact at least 180 degrees of a second circumference of a second shield that surrounds at least two second insulated conductors of a second section of the shielded cable; and electrically connect the second shield with the first electrical conductor.

A locator is for aligning cables which are configured to be connected with a circuit board having an accommodated portion. The locator comprises at least a main portion which extends in a pitch direction. The main portion is, at least in part, formed with at least one circuit board accommodating portion. The main portion is formed with at least one first through hole and at least one second through hole which is different from the first through hole. The at least one circuit board accommodating portion is configured to accommodate the accommodated portion of the circuit board. The at least one circuit board accommodating portion opens at least forward in a front-rear direction perpendicular to the pitch direction. In the pitch direction, the at least one first through hole is provided at a location which is different from a location of the circuit board accommodating portion.

A locator is for aligning cables which are configured to be connected with a circuit board having an accommodated portion. The locator comprises at least a main portion which extends in a pitch direction. The main portion is, at least in part, formed with at least one circuit board accommodating portion. The main portion is formed with at least one first through hole and at least one second through hole which is different from the first through hole. The at least one circuit board accommodating portion is configured to accommodate the accommodated portion of the circuit board. The at least one circuit board accommodating portion opens at least forward in a front-rear direction perpendicular to the pitch direction. In the pitch direction, the at least one first through hole is provided at a location which is different from a location of the circuit board accommodating portion.