Electric connector and connecting piece structure thereof

Abstract

The invention discloses an electric connector and a connecting piece structure thereof. The connecting piece is used for fixing the electric connector on a printed circuit board (PCB) and comprises a main body portion and a welding portion plugged on the PCB. The bottom end of the welding portion is bent upward and extends to form a hook portion for hooking up the end face of the PCB, and the hook portion and the tail end of the welding portion connected through an arc-shaped bent portion. The electric connector comprises a connector main body, and the connecting piece is fixedly installed on the connector main body. Due to the fact that the bottom end of the welding portion of the connecting piece is bent upward and extends to form the hook portion, the hook portion hooks up the end face of the PCB, the pre-positioning effect can be played in welding, and the stable combination of the electric connector and the PCB is facilitated. What's more is important is that due to the fact that the hook portion is bent upward along the bottom of the welding portion, the length of the welding portion of the connecting piece can be decreased, the arc-shaped bent portion is firstly contacted with soldering tin in the plug hole of the PCB in welding, and then the hook portion is matched with the arc-shaped bent portion to play a good welding role of an auxiliary reflow soldering process.

Description

technical field [0001] The invention relates to an electric connector and its connecting piece structure, in particular to an electric connector and its connecting piece structure which can be firmly combined on a PCB. Background technique [0002] With the continuous progress of society, various types of electrical connectors are used in electronic equipment according to different needs, such as HDMI, USB and audio and video connectors, so as to realize various data transmission through electrical connectors to meet the requirements of today's electronic equipment. develop. However, in order to ensure the stability of data transmission of electronic equipment, it is first necessary to consider how to better integrate the electrical connector with the circuit board. There are two traditional methods. One is to add an additional cover to buckle the main body of the connector, such as audio and video Connectors are described as figure 1 , 2 As shown, when the audio and vide...

AI Technical Summary

Problems solved by technology

However, in order to ensure the stability of data transmission of electronic equipment, it is first necessary to consider how to better integrate the electrical connector with the circuit board. There are two traditional methods. One is to add an additional cover to buckle the main body of the connector, such as audio and video Connectors are described as figure 1 , 2 As shown, when the audio and video socket is fixedly connected to the PCB board 3, in order to prevent the audio and video socket from being tilted after being inserted into the PCB board 3, a fixed cover 1 is added, and the fixed cover 1 is buckled on the audio and video connector, and one end is stuck on the audio and video connector. On the insulating base body 2 of the video socket, the other end is against the PCB board 3, so as to keep the product balanced. In this way, it is necessary to add a set of plastic molds and assemble the fixed cover 1 process, which is time-consuming, laborious and costly, and the PCB board 3 must be kept Waste side 4, so that the fixed cover 1 can resist the PCB board 3, which obviously does not meet the needs of market development

The other is to use connectors to fix. The existing connector structure has harpoon-shaped or wave-shaped pins. For the structure of harpoon-shaped pins, see image 3 , this kind of harpoon or wavy pin will encounter poor soldering during the soldering process. For example, the soldering process is to first dip tin in the socket on the PCB board, then insert the connector pin along the socket, and finally reflow However, after these connectors are inserted into the PCB board, the solder feet sticking out of the PCB board will be too long, causing the tin attached to the solder feet to fall off directly, which will affect the soldering effect of reflow soldering and bring production problems. to trouble

In addition, because the barb of the harpoon connector is not elastic, it is in rigid contact with the bottom surface of the PCB board, which will cause the phenomenon of crushing the socket of the PCB board during blanking, making it difficult for the electrical connector to connect with the PCB board. Therefore, how to solve the problem of firmly combining the electrical connector on the circuit board is an urgent problem in the industry.

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