An electrically conductive magnetic snap fastener for releasably coupling a first material to a second material, the fastener including a male fastening element having a stud and stud flange affixable to the first material, and a female fastening element affixable to the second material and including a cover and a magnet disposed within a cavity defined by the cover, and defining a channel into which the stud is insertable, the female fastening element being electrically conductive at least in a portion disposed for electrically conductive contact with the male fastening element when the stud is inserted in the channel, and the cover being a unitary member of electrically conductive metal, wherein the channel is a distally closed and proximally open socket defined by a continuous wall portion of the cover for receiving the stud and preventing passage of liquid through the channel to the magnet.

In a plug connector assembly, a plug connector for mating with a receptacle connector, includes: a shell and a locking spring mounted on the shell and including a mating curved surface for directly locking to and unlocking from a receptacle connector

An electrical plug-in connection provides a connecting element having an electrically conductive outer housing with a first electrical plug-in connector at a first end that has a ring-segment shaped first contact region, and a first electrical counterpart plug-in connector having contact springs that act via the first contact region to produce electrical contact and a mechanical connection between the first plug-in connector and the first counterpart plug-in connector and the contact springs generate an axial force which acts along a longitudinal axis of the first counterpart plug-in connector which pushes the outer housing against an axial end stop of the first counterpart plug-in connector, and/or the contact springs exert on the first contact region and on a ring-segment shaped, and axially offset, second contact region a radial force, which acts orthogonally with respect to the longitudinal axis of the first counterpart plug-in connector.

An electrical plug-in connection provides a connecting element having an electrically conductive outer housing with a first electrical plug-in connector at a first end that has a ring-segment shaped first contact region, and a first electrical counterpart plug-in connector having contact springs that act via the first contact region to produce electrical contact and a mechanical connection between the first plug-in connector and the first counterpart plug-in connector and the contact springs generate an axial force which acts along a longitudinal axis of the first counterpart plug-in connector which pushes the outer housing against an axial end stop of the first counterpart plug-in connector, and/or the contact springs exert on the first contact region and on a ring-segment shaped, and axially offset, second contact region a radial force, which acts orthogonally with respect to the longitudinal axis of the first counterpart plug-in connector.

An electronic cigarette includes a battery module and an atomizing module. The battery module is provided with a battery joint surface. The atomizing module is provided with an atomizing joint surface. The atomizing joint surface is provided with a guide rib, and the battery joint surface is provided with a guide groove, or the atomizing joint surface is provided with a guide groove, and the battery joint surface is provided with a guide rib. The guide rib is fitted in the guide groove so that the battery module and the atomizing module are assembled together.

A connector assembly attaches downhole tools to one another to form a tool string. The connector assembly includes male and female subs, each with latch ends that selectively latch to one another. Ends of the subs distal from their latch ends are configured for attachment to the downhole tools. A plug assembly is in one of the subs and a socket assembly is disposed in the other sub; the plug and socket assemblies mate with one another when the subs attach. Mating the plug and socket assemblies forms a signal communication path through the connector assembly so that adjacent tools are in signal communication. The plug and socket assemblies and male and female subs are annular and circumscribe a bore that extends axially through the connector assembly. Downhole tools that attach to opposing ends of the connector assembly are in communication through the bore in the connector assembly.

An electronic device includes a printed circuit board and a card holder. The card holder is configured to hold a function card, and the printed circuit board is provided with a groove. The card holder is disposed in the groove. A bottom surface of the groove is provided with n metal solder pads and n printed wires. The n metal solder pads are electrically connected to the n printed wires in a one-to-one correspondence. N terminals in a one-to-one correspondence to the n metal solder pads are disposed on the card holder. Each terminal is provided with a first contact and a second contact. The first contact is connected to and in contact with one of the n metal solder pads. The second contact is configured to connect to and be in contact with a metal contact of the function card placed in the card holder.

An electronic device includes a printed circuit board and a card holder. The card holder is configured to hold a function card, and the printed circuit board is provided with a groove. The card holder is disposed in the groove. A bottom surface of the groove is provided with n metal solder pads and n printed wires. The n metal solder pads are electrically connected to the n printed wires in a one-to-one correspondence. N terminals in a one-to-one correspondence to the n metal solder pads are disposed on the card holder. Each terminal is provided with a first contact and a second contact. The first contact is connected to and in contact with one of the n metal solder pads. The second contact is configured to connect to and be in contact with a metal contact of the function card placed in the card holder.

A connector assembly comprises a first connector and a second connector. The first connector comprises a first inner structure and a first housing. The first inner structure comprises a first connector main body. The second connector comprises a second inner structure and a second housing. The second inner structure comprises a second connector main body. The second connector main body comprises a plurality of second terminals, a second holding member and a second shell. The second connector main body is mated with the first connector main body under a mated state where the first connector and the second connector are mated with each other. A distance from a front end of the first housing to a rear end of the second shell is shorter than a distance from a rear end of the second housing to the rear end of the second shell in a front-rear direction under the mated state.

A connector fixture includes a fixture body and a positioning member. The fixture body includes a fixing portion, a retaining portion, and a contact portion. When the fixture body is attached to the first connector, the fixing portion determines the relative position between the fixture body and the first connector in a z-axis direction. The contact portion determines the relative position between the fixture body and the first connector in a y-axis direction. The positioning member determines the relative position between the fixture body and the first connector in an x-axis direction. The positioning member is configured to be separable from the fixture body.