electrical connector
A technology of electrical connectors and circuit boards, which is applied in the direction of connection, fixed connection, circuit, etc., and can solve problems such as terminal short circuit, distance reduction, terminal empty welding, etc.
Active Publication Date: 2019-11-26
DEYI PRECISION ELECTRONIC IND CO LTD PANYU
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AI Technical Summary
Problems solved by technology
[0003] However, due to the large number of terminals in the same row, the miniaturization design of the electrical connector makes the distance between two adjacent terminals in the same row smaller, so that the distance between two adjacent welding parts in the same row becomes smaller , so that when the terminal is soldered on the surface of the circuit board, the solder between two adjacent soldering parts will melt together, resulting in a short circuit of the terminal and affecting the electrical performance of the electrical connector
At the same time, due to the large number of terminals welded to the surface of the circuit board, it cannot be guaranteed that all the welding parts are located on the same plane. Therefore, when the terminals are installed on the circuit board, the distances from the multiple welding parts to the circuit board are different, and the welding parts are relatively different. The lower terminal is in contact with the circuit board first, so there is a gap between the upper terminal and the surface of the circuit board at the soldering part, which may easily cause empty soldering of the terminal and affect the electrical conduction of the electrical connector
Method used
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no. 1 example
[0057] see figure 1 and figure 2 , which is the first embodiment of the present invention, an electrical connector 100 is used to connect with an electronic card 200 , and the electrical connector 100 is mounted on a circuit board 300 . The electrical connector 100 has an insulating body 1, and the insulating body 1 is recessed downward with a slot 101, and a plurality of terminals 2 are arranged in two rows on opposite sides of the slot 101, and each of the The terminals 2 are exposed from the slot 101 for electrical contact with the electronic card 200 .
[0058] see figure 1 , figure 2 and Figure 5 , the insulating body 1 is made of insulating material. The insulating body 1 extends along the longitudinal direction, and has a pair of abutting surfaces 10 and a mounting surface 11 opposite to each other up and down. The slot 101 is recessed downward from the mating surface 10 , the slot 101 extends along the longitudinal direction, and the entire slot 101 is arrange...
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The invention discloses an electric connector. A first welding part has a first surface, wherein the first surface is arranged towards a circuit board; a second welding part has a second surface, wherein the second surface is arranged towards the circuit board; the first surface is positioned above the circuit board, and a gap is formed between the first surface and the circuit board; the second surface is in contact with the surface of the circuit board; equivalently, the first surface is farther from the surface of the circuit board compared with the second surface, so that the gap is formedbetween the first surface and the circuit board when the second surface is in contact with the surface of the circuit board; and therefore, in a process of welding a terminal in the circuit board, the inserted type first welding part does not influence the planeness of the surface welding type second welding part, so that a missing solder phenomenon of the second terminal caused by a condition that a gap is formed between the second welding part and the circuit board due to the fact that the first welding part props against the circuit board can be avoided.
Description
technical field [0001] The invention relates to an electrical connector, in particular to an electrical connector with good soldering effect of terminals on a circuit board. Background technique [0002] An electrical connector is known, which is surface-mounted on a circuit board. Please refer to Chinese patent CN201020551023.9, which discloses a card edge connector. The card edge connector includes an insulating body, and the insulating body is recessed with a receiving cavity. A plurality of terminals are arranged on the insulating body and arranged in two rows on opposite sides of the receiving cavity, each terminal is provided with a holding part fixed in the insulating body, and a terminal extending upward from one end of the holding part into the receiving cavity for The contact part that is in electrical contact with the expansion module and the welding part that extends from the other end of the holding part to the plastic body. The welding part is used for welding ...
Claims
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IPC IPC(8): H01R12/51H01R12/57H01R12/58
CPCH01R12/51H01R12/57H01R12/58
Inventor 朱德祥蔡友华
Owner DEYI PRECISION ELECTRONIC IND CO LTD PANYU