An housing of an electrical connector has at least one accommodation passage passing therethrough. At least one wire is inserted into at least one connection terminal accommodated within the accommodation passage in an insertion direction. The housing has a first surface with a first engagement portion and a second surface, opposite to the first surface, with a second engagement portion matched with the first engagement portion. The first engagement portion or the second engagement portion of the housing is configured to be detachably engaged with a second engagement portion or a first engagement portion of another housing, so as to stack the housing and the another housing together. Thus, it is possible to reduce the space occupied by a plurality of electrical connectors, thereby facilitating management of the wires and the electrical connectors.

An electrical connector comprises a contact, an electric wire connection spring connecting an electric wire to the contact, and a housing. The housing includes a contact accommodating portion receiving the contact, a mechanism accommodating portion receiving the electric wire connection spring, and a lock arm supported on the contact accommodating portion in front of the mechanism accommodating portion and configured to catch a mating connector. The mechanism accommodating portion has a front opening disposed between a rear end portion of the lock arm and the electric wire connection spring.

A rail terminal assembling structure includes a protection member formed with an assembling passage defined by a contact side section, a connection side section and two lateral sections. The connection side section has a first locating section, an elastic locating section and a second locating section. An end section of a conductive plate extends into the assembling passage and securely attached to the contact side section. A metal leaf spring has a first section, a second section and an elastic bight section connected between the first and second sections. The first section has a first located section and an insertion section. When the first section extends into the assembling passage and the first section elastically pushes/presses the elastic locating section until the insertion section reaches the elastic locating section, the elastic locating section is elastically engaged with the insertion section.

An electrical connector comprises a contact, a housing retaining the contact, and a lock arm configured to catch a mating connector. The lock arm has an arm main body integrally formed with the housing and a releasing operation portion formed separately from the housing and attached to the arm main body.

An inter-battery connection device for connecting electrode terminals of a plurality of batteries comprises a housing, a bus bar attached to the housing, and a movable member attached to the housing. The bus bar electrically connects two electrode terminals of a pair of batteries adjacent to each other. The bus bar includes a pair of clips each contacting one electrode terminal and a coupling portion connecting the pair of clips. The movable member is movable between a temporary catching position attached to the housing and a final catching position attached to the housing. The movable member has a clip contact avoiding portion preventing contact between one of the clips and the electrode terminal in the temporary catching position and permitting contact between the clip and the electrode terminal during movement from the temporary catching position to the final catching position.

A conductor terminal with an insulating material housing and a spring-force terminal connection. The spring-force terminal connection has a contact body which is shaped out of a sheet element and has a base portion, lateral wall portions that protrude from the base portion and are mutually spaced, and solder connection contact tongues. The base portion together with the lateral wall portions forms a conductor receiving channel for receiving an electric conductor, and leaf spring tongues protrude from the lateral wall portions so as to face one another, each leaf spring tongue has a clamping edge for clamping an electric conductor received in the conductor receiving channel. The insulating material housing has a conductor insertion opening which leads to the conductor receiving channel on the front face.

An LED socket comprises an LED package having an LED mounted on an LED printed circuit board, a contact having a receiving section adapted to be connected to a terminal end of an electrical cable and a contact lug having a T-shaped contact section, and a base defining a receptacle for receiving the LED printed circuit board. The receptacle is open to an opening in the base adapted to expose the LED at a front face of the base. The base holds the contact and the T-shaped contact section is exposed in the receptacle and electrically contacts a pad of the LED printed circuit board.

A lead terminal that has a modular design, and that has at least one connection module and a plug-in module. The plug-in module being separate from the connection module.

A conductor terminal including a casing made of insulating material. A first spring-loaded clamping connection has a first conductor-receiving space for receiving a first electrical conductor. A second spring-loaded clamping connection has a second conductor-receiving space for receiving a second electrical conductor. The first spring-loaded clamping connection is connected to the second spring-loaded clamping connection via a busbar extending from the first conductor-receiving space to the second conductor-receiving space. The casing made of insulating material comprises multiple parts including a main casing part and at least a first cover part.

A rail terminal assembling structure includes a protection member formed with an assembling passage defined by a contact side section, a connection side section and two lateral sections disposed between the connection side section and the contact side section. The assembling passage has a wire inlet having a first locating section and a second locating section. An end section of a conductive plate extends into the assembling passage and securely attached to the contact side section. A metal leaf spring has a first section, a second section and an elastic bight section connected between the first and second sections. A first located section is disposed on the first section for securely connecting with the first locating section. A second located section is disposed at the tail end of the first section for securely connecting with the second locating section.