CN206422280U - electrical connector - Google Patents

Abstract

The utility model provides an electric connector, include: the circuit board comprises an insulating body, conductive terminals arranged in the insulating body, a chip module arranged on the insulating body and a circuit board arranged below the insulating body; a plurality of terminal grooves are arranged in the insulating body, and the conductive terminals are arranged in the terminal grooves; the conductive terminal is made of a plate and is provided with a contact part, the contact part extends downwards to form an elastic part, and the elastic part extends downwards to form an inserting part; the contact part protrudes out of the terminal groove to be contacted with the chip module, the chip module is provided with a plurality of contact surfaces or a plurality of solder balls, the top of the contact part is provided with a two-point contact structure or a circular tube structure, and the contact part is contacted with the contact surfaces or the solder balls; the elastic part is arranged in the terminal groove, the elastic part is twisted by a plate to form a spiral structure, the top of the elastic part is connected with the contact part, and the bottom of the elastic part is connected with the plug part; the plug part protrudes out of the terminal groove and is plugged with the circuit board. The conductive terminal is made of a plate, the elastic part of the conductive terminal is arranged in the terminal groove, the elastic part is twisted by the plate to form a spiral structure, the top of the spiral structure is connected with the contact part, the bottom of the spiral structure is connected with the plug part, and the conductive terminal has elasticity, is convenient to form and has low cost.

Description

electrical connector

technical field

The utility model relates to an electrical connector, in particular to an electrical connector whose conductive terminals are made of plate materials.

Background technique

In this era of rapid development of electronic information, chip modules can be seen everywhere on electronic products, and the welding of the chip module and the circuit board is a technical difficulty. An insulating body is arranged between the chip module and the circuit board, and a plurality of conductive terminals are arranged in the insulating body to connect with the chip module and the circuit board. A plurality of solder balls are arranged on the chip module, and the solder balls are connected to the conductive terminals. The requirement for the conductive terminals is to arrange them tightly in the insulating body to ensure stable contact with the chip module and the circuit board. Moreover, it is required that the shorter and smaller the conductive terminals are, the more miniaturization of electronic products can be reflected, which is in line with the trend of the times. It is required that the conductive terminal has elasticity and is convenient for welding and operation. The high-frequency performance of the conductive terminal is required to be good and meet the requirements of the product transmission rate, so that the precision required for the conductive terminal is very high.

At present, this type of conductive terminal on the market is processed by a small copper tube. This kind of conductive terminal is provided with a tubular contact part and a plug-in part. The elastic part of the helical groove. This kind of conductive terminal is very fine and small, with a diameter of only about 0.3mm. The processing technology required to process the spiral groove is complex and requires high precision. Therefore, the required equipment must be very advanced, the cost is very high, the processing speed is slow, and the production capacity is low.

Therefore, it is necessary to design an electrical connector with new conductive terminals to overcome the above-mentioned problems.

Utility model content

In view of the problems faced by the background technology, the purpose of this utility model is to provide an electrical connector with low cost and high precision of conductive terminals.

In order to achieve the above purpose, the utility model adopts the following technical means: an electrical connector, including: an insulating body, a conductive terminal arranged in the insulating body, a chip module arranged on the insulating body, and a chip module arranged in the insulating body. The circuit board under the insulating body; the insulating body is provided with a plurality of terminal grooves, and the conductive terminals are arranged in the terminal grooves; the conductive terminals are made of a plate, and the conductive terminals are provided with a contact portion , the contact portion extends downwards with an elastic portion, and the elastic portion extends downwards with a plugging portion; the contact portion partially protrudes from the terminal slot and contacts the chip module, and the chip module is provided with A plurality of contact surfaces or a plurality of solder balls, the top of the contact part is provided with a two-point contact structure or a circular tube structure, and the contact part is in contact with the contact surface or the solder balls; the elastic part is arranged on the In the terminal groove, the elastic part is twisted by the plate to form a helical structure, the top of the helical structure is connected to the contact part, and the bottom is connected to the insertion part; the insertion part protrudes from the The terminal slot is inserted into the circuit board.

Further, the contact part is a plate-shaped two-point contact structure, the top edge of the plate-shaped structure is connected to the contact point, and the edge end of the plate-shaped structure is connected to the elastic part.

Further, a reinforcing rib is provided on the contact portion.

Further, the top of the contact portion is in an arc-shaped two-point contact structure, and the solder balls are arranged in the arc.

Further, the insertion part is a plate-shaped structure, the top edge of the plate-shaped structure is connected to the elastic part, and the insertion part is arranged in parallel with the contact part.

Further, a reinforcing rib is provided on the insertion part.

Further, the insertion end is a needle-shaped structure, and the needle-shaped structure is arranged in the circuit board.

Further, the contact part is a tubular structure surrounded by plates, and the contact point is a circular plane.

Further, the insertion part is a tubular structure surrounded by plates, and an anti-creeping tin part is provided on the tubular structure.

Compared with the prior art, the utility model has the following beneficial effects: the conductive terminal is made of a plate, the elastic part of the conductive terminal is arranged in the terminal groove, and the elastic part is twisted by the plate. Form a helical structure, the top of the helical structure is connected to the contact part, and the bottom is connected to the insertion part. The conductive terminal itself has elasticity, and is easy to form and low in cost.

Description of drawings

Fig. 1 is a state diagram before the conductive terminals of the first embodiment of the electrical connector of the present invention are compressed;

FIG. 2 is a state diagram of the compressed conductive terminal of Embodiment 1 of the electrical connector of the present invention;

Fig. 3 is a state diagram before the conductive terminal of the second embodiment of the electrical connector of the present invention is compressed;

FIG. 4 is a state diagram of the compressed conductive terminal of the second embodiment of the electrical connector of the present invention.

Description of the accompanying drawings for specific embodiments:

chip module 1 Conductive terminal 3 elastic part 34 Solder balls 11 contact part 31 Socket 35 Insulation body 2 Rib 32 Anti-slip tin part 351 Terminal slot twenty one Contact point 33

detailed description

In order to facilitate a better understanding of the purpose, structure, features, and effects of the utility model, the utility model will be further described in conjunction with the accompanying drawings and specific implementation methods.

As shown in accompanying drawings 1 to 4, the electrical connector of the present invention includes an insulating body 2, a conductive terminal 3 disposed in the insulating body 2, a chip module disposed on the insulating body 2, A circuit board (not shown) arranged under the insulating body 2; a plurality of terminal grooves 21 are arranged in the insulating body 2, and the conductive terminals 3 are arranged in the terminal grooves 21, and the terminal grooves 21 It is a through-hole structure; the conductive terminal 3 is made of a plate, and the conductive terminal 3 is provided with a contact portion 31, and the contact portion 31 extends downward with an elastic portion 34, and the elastic portion 34 extends downward with an insertion Connection part 35. Part of the contact portion 31 protrudes from the terminal groove 21 to contact the chip module. The chip module is provided with a plurality of contact surfaces or a plurality of solder balls 11. The top of the contact portion 31 is provided with two points A contact structure or a circular tube structure, the contact portion 31 is in contact with the contact surface or the solder ball 11 . The elastic part 34 is arranged in the terminal groove 21, and the elastic part 34 is twisted by the plate to form a helical structure, the top of the helical structure is connected to the contact part 31, and the bottom is connected to the plug-in Part 35 is connected. The inserting portion 35 partially protrudes from the terminal groove 21 and is inserted into the circuit board (not shown).

As shown in Figure 1 and Figure 2, in Embodiment 1, the contact portion 31 is a plate-shaped two-point contact structure, and the top edge of the plate-shaped structure is connected to the contact point 33, and the plate-shaped structure The end of the plate edge is connected with the elastic part 34. A reinforcing rib 32 is disposed on the contact portion 31 to enhance the strength of the contact portion 31 . The top of the contact portion 31 has an arc-shaped two-point contact structure, and the solder ball 11 is arranged in the arc to absorb more tin, so that the chip module 1 is in stable contact with the conductive terminal 3 and the contact is good . The insertion part 35 is a plate-shaped structure, the top edge of the plate-shaped structure is connected to the elastic part 34, and the insertion part 35 is arranged in parallel with the contact part 31, which facilitates the connection of the conductive terminal 3. Arrangement is beneficial to the miniaturization development of the electronic product. A reinforcing rib 32 is disposed on the insertion portion 35 to enhance the strength of the insertion portion 35 . The insertion end is a needle-shaped structure, and the needle-shaped structure is arranged in the circuit board (not shown), so as to facilitate connection with the circuit board (not shown). The insertion part 35 is a plate-shaped structure, which does not cause tin creeping, is easy to weld, and has stable contact.

As shown in Figure 3 and Figure 4, in Embodiment 2, the contact portion 31 is a tubular structure surrounded by plates, the contact point 33 is a circular plane, and the solder ball 11 is placed on on the plane of the ring. The insertion portion 35 is a tubular structure surrounded by plates, and an anti-creeping tin portion 351 is provided on the tubular structure. The anti-creepage portion 351 prevents the soldering phenomenon when the conductive terminal 3 is soldered to the circuit board (not shown).

As shown in Figures 1 to 4, the structure of the elastic portion 34 of the first embodiment is the same as that of the second embodiment. The elastic part 34 makes the conductive terminal 3 itself elastic, and the elastic part 34 is a helical structure formed by twisting a plate. This kind of helical structure is relatively simple to form, has a fast production rate, and does not require advanced equipment It can be completed, the cost is greatly reduced, and the economic benefit is improved. The contact between the chip module 1 and the circuit board (not shown) only needs to be in contact with the circuit board (not shown) through the contact part 31 and the contact part 31 of the solder ball 11, and the socket part 35 can be contacted. Fewer 33 points are conducive to the stability of contact. The conductive terminal 3 itself has elasticity, and the elastic portion 34 is a spiral-shaped structure twisted from its own plate shape. The contact portion 31, the elastic portion 34 and the insertion portion 35 are all made of the same plate. Made so that the life of the conductive terminal 3 is long. The conductive terminals 3 are short and small, which is beneficial to the transmission of high-frequency signals.

The above detailed description is only a description of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the instructions and illustrations of this invention are included in the utility model. within the scope of the new patent.

Claims (9)

1. a kind of electric connector, it is characterised in that including：

One insulating body, the conducting terminal in the insulating body, the chip module on the insulating body is located at Circuit board under the insulating body；Multiple terminal grooves are provided with the insulating body, the conducting terminal is located at the terminal In groove；

The conducting terminal is made up of a sheet material, and the conducting terminal is provided with a contact site, and the contact site extends downwardly a bullet Property portion, the elastic portion extends downwardly a plug division；

The contact site is partially protrude through the terminal groove and contacted with the chip module, and the chip module is provided with multiple contacts Face or multiple tin balls, the top of the contact site are provided with two point-contact junction structures or circular tube structure, and the contact site is contacted with described Face or the tin ball contact；

The elastic portion is in the terminal groove, and the elastic portion is reversed by the sheet material forms a helicoidal structure, described It is connected at the top of helicoidal structure with the contact site, bottom is connected with the plug division；

The plug division be partially protrude through the terminal groove and with the circuit board grafting.

2. electric connector as claimed in claim 1, it is characterised in that：The contact site is the Dian Jie Chu Knot structures of tabular two, described The plate edge top of platy structure is connected with contact point, and the plate edge end of the platy structure is connected with the elastic portion.

3. electric connector as claimed in claim 2, it is characterised in that：The contact site is provided with a ribs.

4. electric connector as claimed in claim 2, it is characterised in that：The curved two point-contact junctions structure in contact site top, Contact surface or the tin ball is in arc.

5. electric connector as claimed in claim 2, it is characterised in that：The plug division is platy structure, the platy structure Plate edge top be connected with the elastic portion, the plug division be arranged in parallel with the contact site.

6. electric connector as claimed in claim 5, it is characterised in that：The plug division is provided with a ribs.

7. electric connector as claimed in claim 5, it is characterised in that：The patch end is an acicular texture, the needle-like Structure is in the circuit board.

8. electric connector as claimed in claim 1, it is characterised in that：The contact site is the tubulose knot surrounded by sheet material Structure, the contact point is the plane of an annulus.

9. electric connector as claimed in claim 1, it is characterised in that：The plug division is the tubulose knot surrounded by sheet material Structure, the tubular structure is provided with a tin spreading preventing portion.