Abstract: An electrical connector includes an insulating housing, a plurality of terminals assembled in the insulating housing, and a shielding shell curved from a metal plate to show a hollow barrel shape and enclose the insulating housing. An inserting space is formed between a front of the insulating housing and periphery inner sides of a front of the shielding shell, and has a free open front end for inserting a mating connector therefrom into the inserting space. The terminals project into the inserting space to connect with the mating connector. A pair of elastic fool-proofing elements is formed at two opposite bottom corners of the open front end of the shielding shell and each shows an arc shape from a front view. Two cambered faces of the elastic fool-proofing elements face each other for guiding the insertion of the mating connector and further elastically resisting against the mating connector.

Abstract: An electrical connector includes an insulating body, a plurality of terminals disposed in top and bottom surfaces of the insulating body, a holding body mounted to a rear of the insulating body and defining a plurality of positioning apertures penetrating vertically therethrough, and an insulating housing having a base body and a tongue board extending forward from a front of the base body. Each terminal has a soldering tail stretching downward beyond a bottom of the rear of the holding body to be positioned in the positioning aperture. A bottom of the tongue board defines a receiving recess extending longitudinally to penetrate through the base body. A rear end of the receiving recess penetrates downward through the base body to define an opening. The insulating body with the terminals and the holding body is inserted forward in the receiving recess, and the holding body is secured in the opening.

Abstract: A shielding shell includes a front shell curved from a metal plate and having a base board and two side boards, and a rear shell having a base plate of which a front edge is connected with a rear edge of the base board. Two side plates extend downward from two opposite side edges of the base plate and each is connected with a rear edge of the side board of the front shell by virtue of a strengthening structure. The strengthening structure includes a first strengthening arm extending towards the corresponding side plate from a rear edge of the side board, and a second strengthening arm extending towards the corresponding side board from a front edge of the side plate to be buckled with the first strengthening arm so as to secure the side plate and the corresponding side board together.

Abstract: An electrical connector includes an insulating housing defining a plurality of terminal grooves each extending along a front-to-rear direction. A plurality of terminals includes a plurality of flat terminals made by stamping and bending metal strips and a plurality of spring terminals made by die-cutting upright metal boards of long rectangular shape. Each spring terminal is inserted forward and uprightly positioned in the corresponding terminal groove of the insulating housing without being pressed and bent. The flat terminals are molded in the insulating housing with front ends thereof acted as contacting ends and exposed outside. A lid is mounted to a back of the insulating housing for positioning a rear of the spring terminal. A latch is inserted forward in the insulating housing. A shielding shell is mounted to the insulating housing and electrically connects with the latch.

Abstract: A shielding shell includes a front shell curved from a metal plate and having a base board and two side boards, and a rear shell having a base plate of which a front edge is connected with a rear edge of the base board. Two side plates extend downward from two opposite side edges of the base plate and each is connected with a rear edge of the side board of the front shell by virtue of a strengthening structure. The strengthening structure includes a first strengthening arm extending towards the corresponding side plate from a rear edge of the side board, and a second strengthening arm extending towards the corresponding side board from a front edge of the side plate to be buckled with the first strengthening arm so as to secure the side plate and the corresponding side board together.

Abstract: An electrical connector includes an insulating housing, a plurality of terminals, a main shielding shell and an auxiliary shielding shell. The insulating housing includes a base body and a tongue portion. The insulating housing defines a plurality of terminal grooves of which each includes a receiving slot passing through a rear surface and a bottom surface of the base body. The terminals are received in the terminal grooves with soldering portions disposed in the receiving slots. A bottom face of the soldering portion is in alignment with the bottom surface of the base body to be soldered on a circuit board. The main shielding shell surrounds the tongue portion with the terminals. The auxiliary shielding shell has a base plate positioned to the rear surface of the base body to cover up top portions of the soldering portions, and two bending plates attached to the main shielding shell.

Abstract: A magnetocaloric material structure is disclosed. The magnetocaloric material structure includes a magnetocaloric material body and a plurality of channels. The channels are located in the magnetocaloric material body. The cross-section of the channels has a center disposed according to the following formula: L32?L12+L22. Wherein, L1 is the minimum value of the length of the lines between the adjacent centers parallel or perpendicular to a direction; L2 is the maximum value of the length of the lines between the adjacent centers parallel or perpendicular to the direction; L3 is the minimum value of the length of the lines between the adjacent centers not parallel or perpendicular to the direction. Another magnetocaloric material structure, which includes a magnetocaloric material body and a plurality of channels, is disclosed. The cross-section of each channel is in a non-circular and non-rectangular shape, which is a symmetric or asymmetric shape.

Abstract: An electrical connector includes an insulating housing having a front surface concaved rearward to define a receiving chamber with a tongue board therein. Electrical terminals are disposed in the tongue board and elastically stretch into the receiving chamber. A frame-shaped holding shell is mounted in the receiving chamber. A shielding cover adapted for being connected to ground and punched from a metal board has a base board with a window being opened therein and a plurality of contact strips being formed and apart arranged to periphery edges of the base board. The base board is covered onto the front surface of the insulating housing with the window being communicated with the receiving chamber. The contact strips stretch freely outside the insulating housing. A shielding shell is put around the insulating housing and electrically connected with the shielding cover.

Abstract: A plug connector includes an insulating housing, a plurality of first terminals which are adapted to connect with a mating receptacle connector and include a first ground terminal, a first power terminal for connecting with an external power supply and at least two first signal terminals, a plurality of second terminals which include second power terminals adapted to transmit different voltage values, second ground terminals and a backup terminal, and a support body mounted to a rear side of the insulating housing. The first and second terminals are inserted forward in the insulating housing and each has a soldering arm penetrating rearward through the support body to be exposed outside and supported by the support body. A shielding shell encloses the insulating housing and the support body with the first and second terminals.

Abstract: A cable connector assembly connecting between a cable and a printed circuit board includes a plug connector and a receptacle connector. The plug connector includes a plug housing, a plurality of plug terminals received in the plug housing, and a plug shielding shell surrounding the plug housing. A plurality of contact strips extend downward from a periphery of the plug shielding shell to be attached to a periphery of the plug housing. The receptacle connector includes a receptacle housing, a plurality of receptacle terminals received in the receptacle housing, and a receptacle shielding shell surrounding the receptacle housing. A plurality of elastic strips is bent inward and then downward from a periphery of the receptacle shielding shell. The plug connector is engaged with the receptacle connector with the plug terminals contacting with the receptacle terminals and the contact strips contacting with the elastic strips.

Abstract: A tilt switch includes an insulating housing having a receiving chamber and a connecting cavity smaller than the receiving chamber in diameter to form a step therebetween, electrical terminals penetrating through the insulating housing to project into the connecting cavity, an insulating cover removably covered on the insulating housing, and a switching ball made of conductive materials and rollably placed between the insulating housing and the insulating cover. The step has a top face perpendicular to periphery surfaces of the connecting cavity and the receiving chamber. The switching ball needs to roll over the step having a hard span when the tilt switch changes working states between a closed state realized by the switching ball projecting into the connecting cavity to simultaneously connect with the electrical terminals, and an open state realized by tilting the tilt switch to disconnect the switching ball from at least one electrical terminal.

Abstract: A tilt switch includes an insulating housing having a receiving chamber and a connecting cavity between which a ring-shaped step is formed, electrical terminals each having a support arm of platy shape inserted upward into the connecting cavity, a switching ball made of conductive materials and rollably placed in the receiving chamber, and an insulating cover removably covered on the insulating housing to restrain the switching ball in the insulating housing. The support arms are arranged at regular intervals around the center axis of the connecting cavity. The ring-shaped step has a top face substantially perpendicular to two vertical periphery surfaces of the connecting cavity and the receiving chamber. The switching ball needs to roll over the ring-shaped step having a hard span when the tilt switch changes working states thereof among a closed state, a shorted state and an open state.

Abstract: A connector assembly includes a printed circuit board defining an inserting window and soldering holes adjacent to two sides of the inserting window, and an electrical connector assembled in the inserting window. The electrical connector includes an insulating body, terminals disposed in the insulating body and each having a soldering arm levelly extending rearward to stretch behind the insulating body, and a shell enclosing the insulating body and the terminals. Each side board of the shell has a substantial middle punched outward to form a soldering board extending levelly, and a lower part of a rear edge punched outward and then bent downward to form a soldering tail inserted downward in the soldering hole of the printed circuit board. The soldering boards of the shell and the soldering arms of the terminals are flush with one another to be levelly against and further soldered onto the printed circuit board.

Abstract: A connector includes an insulating housing, terminals assembled in the insulating housing, a first shell having a receiving space surrounded by a top plate, two lateral plates and a bottom plate for receiving the insulating housing therein, and a second shell having a base board electrically fixed on the top plate. Two sides of the top plate define two first openings spaced from each other and communicating with the receiving space. A rear side of each first opening extends forward to form an elastic arm with a free end arched downward into the receiving space. Two sides of the base board define two second openings corresponding to the first openings. A rear side of each second opening protrudes forward to form an extending arm resting against a top of the elastic arm for strengthening insertion and extraction strength of the elastic arms acting on a plug connector.