Electrical connector

Electric connector

The present invention relates to an electrical connector, and more particularly to an electrical connector that can be accurately and firmly positioned on a circuit board.

A large number of connectors are mounted on the circuit board to perform electrical connection. However, the circuit structure of the circuit board is complicated, which requires that the electrical connector can be accurately and firmly positioned on the circuit board. A conventional electrical connector includes an insulating body, a fixed hook, a plurality of conductive terminals, and a cover. The insulating body has a receiving space, the conductive terminals are fixed in the insulating body, and the cover is snapped on the insulating body. Such electrical connectors usually use the upper surface of the cover as an adsorption surface to suck and place the entire electrical connector on the circuit board for positioning, and then apply pressure to the upper surface of the cover to fix it on the circuit board.

However, the disadvantage of this design is that the cover of the electrical connector itself cannot be accurately positioned on the insulating body and the cover and the insulating body usually have a general interference fit. As the use time is longer, the fit is not tight. It is likely that the insulation body will shift or fall off during the suction process of the entire device. As a result, the positioning of the electrical connector on the circuit board is not reliable. In addition, in order to firmly connect the electrical connector with the circuit board, pressure is usually applied to the upper surface of the cover. Too little pressure can often not meet the actual needs, which requires more pressure to be applied. As a result, the conductive terminal is crushed by the cover.

Therefore, it is really necessary to improve this electrical connector to solve the above-mentioned defects in the conventional technology.

As an improvement objective of the new model, the cover body can be accurately and tightly positioned on the insulating body of the electrical connector.

As another improvement objective of the new model, the whole electrical connector can be pressed and fixed on the circuit board.

The purpose of the present invention is achieved by the following technical scheme: An electrical connector includes an insulating body, a fixed hook, a plurality of conductive terminals, and a cover. The insulating body has a receiving space, the conductive terminals are fixed in the insulating body, and the cover is snapped on the insulating body. The inner surface of the side wall of the cover body is provided with a plurality of reinforcing ribs and standing legs. Each of the inner surfaces of the two ends of the cover body is provided with a positioning card.

Compared with the prior art, the new type has the following advantages: the inner surface of the side wall of the cover body has a plurality of reinforcing ribs, which makes the interference fit between the cover body and the insulating body closer. The positioning cards at both ends of the cover can be tightly buckled between the arc-shaped positioning bosses at both ends of the insulating body, so that the cover can be accurately and tightly positioned on the insulating body of the electrical connector. In addition, the leg on the inner surface of the side wall of the cover can effectively transmit the pressure applied to the surface of the cover to the entire electrical connector, press the electrical connector to the circuit board, and prevent the conductive terminal from being crushed by the cover. .

Referring to the first and second figures, the new electrical connector 1 includes an insulating body 2, a fixing hook 3, a plurality of conductive terminals 4, and a cover 5. The insulating body 2 has a receiving space, the conductive terminals 4 are held in the insulating body 2, and the cover 5 is buckled on the insulating body 2.

The insulating body 2 includes a substantially rectangular base body 21. Each end of the upper surface of the base body 21 is provided with an arc-shaped positioning boss 22. An arc-shaped chamfer 221 is provided at an opposite side edge of the arc-shaped positioning boss 22. A rectangular block-shaped base 23 is provided at each end of the lower surface of the base 21, and an open groove 24 is provided on the lower surface of the base 23. The fixing hook 3 is held in the opening groove 24. In addition, between the two arc-shaped positioning bosses 22 of the base body 21, a plurality of rectangular terminal receiving holes 25 for accommodating the conductive terminals 4 in different sizes are arranged regularly.

The fixing hook 3 is composed of a holding portion 31 and a hook-shaped portion 32 having an inverted "U" shape. The fixing hook 3 is used to fix the electrical connector 1 on a circuit board (not shown).

Please refer to the third figure. The cover 5 is a generally rectangular U-shaped groove structure. The inner surface of the side wall is provided with a plurality of reinforcing ribs 51 and standing legs 52. The inner surfaces of both ends of the cover 5 are provided with downward projections. Of positioning card 53. The height of the rib 51 is consistent with the height of the side wall. The stand foot 52 extends to about one and a half height of the side wall.

During assembly, the conductive terminal 4 is held in the terminal receiving hole 25 of the insulating body 2, the holding portion 31 of the fixing hook 3 is held in the opening groove 24 of the base 23, and the cover 5 is finally snapped on the insulating body 2 Between two arc-shaped positioning bosses 22. The arc chamfer 221 of the arc-shaped positioning boss 22 also has a better guiding function for the two positioning cards 53 of the cover body 5. In this way, the cover body is relying on the close cooperation of the arc-shaped positioning boss 22 and the positioning card 53 to make the cover body 5 is better positioned on the insulating body 2. In addition, the reinforcing ribs 51 on the side wall of the cover 5 make the cover 5 and the insulating body 2 snap closer. The snapped leg 52 abuts on the edge of the upper surface of the insulating body 2. The length of the leg 52 is sufficient to prevent the conductive terminal 4 from contacting the cover 5, and the leg 52 and the conductive terminal 4 do not interfere. Then, the electrical connector 1 is accurately positioned on the circuit board by using the upper surface of the cover 5 as an adsorption surface. Then, a pressure is applied on the upper surface of the cover 5 and the effective transmission of the leg 52 causes the electrical connector 1 to be fixed on the circuit board. Finally, the hook portion 32 of the fixing hook 3 is fixed to the circuit board.

<p>Electrical connector. . .1</p><p>Insulating body. . .2</p><p>Matrix. . .twenty one</p><p>Curved positioning boss. . .twenty two</p><p>Arc chamfer. . .221</p><p>Base. . .twenty three</p><p>Open slot. . .twenty four</p><p>Fixed hook. . .3</p><p>Holding Department. . .31</p><p>Hooked section. . .32</p><p>Conductive terminals. . .4</p><p>Cover body. . .5</p><p>Reinforcing ribs. . .51</p><p>Stand on foot. . .52</p><p>Positioning cards. . .53</p>

The first figure is a three-dimensional assembled view of the new type of electrical connector.

The second figure is an exploded perspective view of the novel electrical connector.

The third figure is an enlarged view of the cover of the new type of electrical connector taken along a transverse symmetry line.