A plug-side first electrical plug connector has at least two flat electrical contact elements arranged in parallel extending in a housing of the connector in the insertion direction of the connector for accommodating socket-side second plug connector in the direction of an opening of the housing. A plastic tip is formed on one end of a contact region of the contact elements, and at least one dome-like shock hazard protection element is provided in the housing, extending in the insertion direction adjacent to the contact elements and protrudes beyond the contact region of the contact elements. The plug connector is suitable for a motor vehicle inverter to supply power to an auxiliary unit of the motor vehicle, and provides shock hazard protection of the contact elements for a human finger and/or reliable operating security is provided.

A plug-side first electrical plug connector has at least two flat electrical contact elements arranged in parallel extending in a housing of the connector in the insertion direction of the connector for accommodating socket-side second plug connector in the direction of an opening of the housing. A plastic tip is formed on one end of a contact region of the contact elements, and at least one dome-like shock hazard protection element is provided in the housing, extending in the insertion direction adjacent to the contact elements and protrudes beyond the contact region of the contact elements. The plug connector is suitable for a motor vehicle inverter to supply power to an auxiliary unit of the motor vehicle, and provides shock hazard protection of the contact elements for a human finger and/or reliable operating security is provided.

An electrical connector comprises a housing, an electrical contact disposed in the housing, and a heat bridge. The heat bridge has a heat absorption surface thermally connected to the electrical contact and a heat transfer surface accessible from outside the electrical connector and electrically insulated from the electrical contact. An insulating layer may be deposited onto the heat bridge. An abrasion protection part may be used to protect the insulating layer.

An electrical connector comprises a housing, an electrical contact disposed in the housing, and a heat bridge. The heat bridge has a heat absorption surface thermally connected to the electrical contact and a heat transfer surface accessible from outside the electrical connector and electrically insulated from the electrical contact. An insulating layer may be deposited onto the heat bridge. An abrasion protection part may be used to protect the insulating layer.

An electrical connector assembly comprises a connector shell configured to interface with a mating connector shell, a coupling member configured to receive the connector shell and having an internal thread engaging the mating connector shell, and a retaining member configured to retain the connector shell in the coupling member. The connector shell has a plurality of ratchet teeth and defines a longitudinal axis. The plurality of ratchet teeth form a first ratchet ring and a second ratchet ring around the connector shell.

A receptacle connector device for electrical vehicle use in accordance with the present invention is disposed at a battery terminal of an electric vehicle and is connected to a plug connector in a charging station. The receptacle connector comprises an insulating body and a plurality of conducting elements. The insulating body is made of waterproof plastic materials and the plurality of the conducting elements are made of metal materials. The insulating body has a plurality of concentric circular grooves and a transverse portion. The plurality of the conducting elements are respectively disposed in the plurality of the concentric circular grooves, characterized in that: each of the plurality of the conducting elements forms a rough surface, thereby to enlarge contact area between the plurality of the conducting elements and the insulating body in moulding process for firm combination of plastic and metal materials.

An electric connector structure has a male connecting member and a female connecting member. The maximum swing and vibration space is provided between the male connecting member and the female connecting member, and then the pressure is locally compressed through the pressing face and the blocking face. The protrusion partially interferes with the power socket, thereby forming a three-point hard contact inside the male connecting member and the female connecting member, so that the male connecting member and the female connecting member can be formed at the three-point hard contact position. The limit of vibration or swing, thereby effectively reducing the amplitude of the swing or vibration of the male connecting member and the female connecting member without completely preventing the swing or vibration of the male connecting member and the female connecting member, so as to eliminate the external forces and achieve protection of the signal pin.

An electric connector structure has a male connecting member and a female connecting member. The maximum swing and vibration space is provided between the male connecting member and the female connecting member, and then the pressure is locally compressed through the pressing face and the blocking face. The protrusion partially interferes with the power socket, thereby forming a three-point hard contact inside the male connecting member and the female connecting member, so that the male connecting member and the female connecting member can be formed at the three-point hard contact position. The limit of vibration or swing, thereby effectively reducing the amplitude of the swing or vibration of the male connecting member and the female connecting member without completely preventing the swing or vibration of the male connecting member and the female connecting member, so as to eliminate the external forces and achieve protection of the signal pin.

An electrical connector includes: a plastic housing provided with a receiving cavity extending in a front-rear direction therein; a metal stopping member provided in the housing, including at least one fixing portion embedded in the housing and a body exposed to the cavity, the body is provided with a through hole; a terminal base including a base portion and a tongue extending forwardly from the base portion, the terminal base is mounted in the cavity, the body of the metal stopping member blocks in front of the base portion, the tongue passes through the through hole of the metal stopping member and extends forwardly; and a plurality of conductive terminals fixed to the terminal base, each terminal includes a contact portion which is exposed to the tongue and a soldering portion which rearwardly extends out of the terminal base. The connector has a robust structure and facilitates to reduce weight.

A terminal fitting (60) includes a stabilizer (65) arranged on a first surface of a body (61) and configured to enter a guide groove (23) if the terminal fitting is in a proper insertion posture while restricting insertion by contacting a contact surface (24B) if the terminal fitting (60) is in an inverted insertion posture opposite to the proper insertion posture. The terminal fitting (60) includes a rattling preventing protrusion (66) arranged on a second surface of the body (61) opposite to the first surface and at a position overlapping the stabilizer (65) in a front-rear direction and capable of contacting facing upper wall surfaces (27) of a cavity (21) with the terminal fitting held in the inverted insertion posture and the stabilizer (65) held in contact with the contact surface (24B).