Abstract: A board to board connector includes a plug and a receptacle. The two ends of the receptacle sink to form a U-shape groove. The groove penetrates downward through the first housing of the receptacle and can accept a first locking piece. The first locking piece has a U-shaped body received in the groove, which extends to form welding portions, and the welding portions project out of the first housing. An inserting groove is opened in the end of the plug. The inserting groove can accept a second locking piece. A straight arm of the second locking piece projects out of the second housing of the plug. The board to board connector can be welded in PCBs by the first and second locking pieces.

Abstract: An electrical connector includes an insulation housing having an insertion passage arranged at a top surface thereon, a receiving space arranged at a bottom surface thereon. An electrical contact covers the bottom surface and side surfaces of the insulation housing having a body portion covering the bottom surface, an elastic connection portion received in the receiving space, sidewalls covering the side surfaces and soldering portions. An engagement portion includes a projection member arranged at the side surface of the insulation housing and a fixing hole opened through the sidewall of the electrical contact for engaging with the projection member. While a contact of a matching device obliquely inserts into the insertion passage and presses the elastic connection portion, the electrical contact engages with the insulation housing securely via the engagement portion for preventing the electrical contact departing from the insulation housing by the pressing force from the contact of the matching device.

Abstract: A receptacle connector includes a dielectric housing and a dustproof cover covered on the housing. The housing has a bottom wall, a top wall, two sidewalls and two retainers defined between the sidewalls. Two locking grooves formed at the opposite sides of the body are defined between one of the sidewalls and the corresponding retainers. Each sidewall defines a position unit in the middle thereof with a guide unit formed in front of the position unit. The dustproof cover has a plate, two receiving grooves and two fixed arms. Each fixed arm defines a guide portion extending inward from the end thereof with two abutting blocks protruding inward from inner side of each fixed arms. The guide portions are sliding received in the position units along the guide unit. The abutting blocks are received between the position unit and the guide unit and pressed against the guide unit.

Abstract: A microphone connector includes an insulation housing and an electrical contact. The insulation housing has an insertion passage arranged at a top surface thereon, a receiving space arranged at a bottom surface thereon and communicated with the insertion passage and grooves passing through opposite sidewalls of the insulation housing. The electrical contact includes a body portion arranged up on the sidewalls, a soldering portion arranged at one end of the body portion, at least two opposite arms arranged at the other end of the body portion and received in the corresponding grooves respectively and elastic connection portions respectively arranged at the side arms and received in the receiving space. While a terminal of a microphone inserts into the insertion passage and electronically couples to the elastic connection portions to form multi-conductive areas, signal is transmitted between the microphone and the microphone connector stably through the multi-conductive areas.

Abstract: A kind of terminal includes a base part, which is a planar shape. A connecting part extends from the back of the base part. A contact part extends from the front of the base part. The tip of the contact part forms a contact probe that has an arc surface. A pair of pass holes is defined on the left side and the right side of the base part. A region in the base part further protrudes upwards to form a lump as a press part and extends downwards to form an insertion part.

Abstract: An electrical connector includes an insulation housing having an insertion passage arranged at a top surface thereon, a receiving space arranged at a bottom surface thereon. An electrical contact covers the bottom surface and side surfaces of the insulation housing having a body portion covering the bottom surface, an elastic connection portion received in the receiving space, sidewalls covering the side surfaces and soldering portions. An engagement portion includes a projection member arranged at the side surface of the insulation housing and a fixing hole opened through the sidewall of the electrical contact for engaging with the projection member. While a contact of a matching device obliquely inserts into the insertion passage and presses the elastic connection portion, the electrical contact engages with the insulation housing securely via the engagement portion for preventing the electrical contact departing from the insulation housing by the pressing force from the contact of the matching device.

Abstract: A memory connector includes an insulative housing, a plurality of terminals accommodated in the insulative housing, a cover engaged with the insulative housing and a switch mechanism secured in the insulative housing. The switch mechanism includes a first member and a second member. The first member keeps a proper distance to the second member. When a memory card is fully inserted into the memory card connector, the memory card passes over and pushes the first member to make electric connection to the second member. The connection between the first member and the second member generates a signal to judge whether the memory card is right inserted or not.

Abstract: A memory card connector includes an insulating housing, an ejector, a plurality of first electric terminals, a plurality of second electric terminals, a detected apparatus and a cover. The insulating housing includes a base, a left wall, a right wall and a front wall. All the walls define an upper space and a down space. A glide notch is formed in the right wall. The first electric terminals and the second electric terminals are located in the insulating housing. The ejector is located in the glide notch. The memory card connector can accept a memory card. The detected apparatus determines the correctness of the way that inserting the memory card into the memory card connector.

Abstract: A plug connector includes an upper metal cover, a lower metal cover and a conductor assembly. The upper metal cover has a front cavity and a back cavity which has a top plank. The bottom of the front cavity extends backward and forms an extension portion. Two sides of the back of the top plank bend downward and form two opposite side planks. The side plank stretches forward from its front and forms a locking slice. The conductor assembly includes a plurality of conductor pins, a housing and latches. The conductor pins and the latches are held in the housing. The housing includes a front housing and a back housing. Each side of the back housing opens a preventing recess. At the junction of the back housing and the front housing, a front wall of the back housing hollows inside and defines a recessed portion.