CN202004221U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which comprises an insulating body and a plurality of conductive terminals. The conductive terminal has a main body held in the insulating body, an elastic part bent upward from the main body, a contact part located at the end of the elastic part, and a mounting part extending downward from the main body. The contact part is in the shape of a barrel, which first extends away from the elastic part and then bends and extends towards the elastic part. An opening is formed at the end of the contact part close to the elastic part. A slight deformation of the conductive terminal can increase the positive pressure sharply, thereby ensuring a good contact between it and the chip module, and at the same time meeting the requirements of a low configuration of the electrical connector.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector installed on a circuit board for connecting chip modules.

【Background technique】

The CPU is usually electrically connected to the printed circuit board through an electrical connector. This type of electrical connector has an insulating body and a number of conductive terminals mounted on the insulating body. The conductive terminals have tails connected to the circuit board and connected to the CPU and can be elastic. Deformed butt. With the continuous development of technology, the arrangement density of conductive terminals on the electrical connector is increasing, and at the same time, the height of the electrical connector is also reduced to meet the needs of miniaturization and thinning.

Under normal circumstances, the amount of deformation of the abutting portion of the conductive terminal is proportional to the normal pressure it can withstand, that is, the greater the deformation of the abutting portion, the greater the normal pressure it can withstand. Moreover, in order to achieve a good electrical connection between the conductive terminal and the CPU, it is necessary to have a stable contact resistance between the two, so it is necessary to increase the positive pressure of the conductive terminal accordingly. However, according to this design, the elastic arm of the terminal needs to be elongated to have better elasticity, and thus have a larger positive pressure, which will not be able to effectively reduce the height of the conductive terminal, and cannot meet the needs of thinning electrical connectors .

Therefore, it is necessary to improve the aforementioned electrical connectors to overcome the defects of the prior art.

【Content of utility model】

The purpose of the utility model is to provide a low-profile electrical connector with relatively large positive pressure on the terminals.

The electrical connector of the utility model can be realized through the following technical solutions: an electrical connector includes an insulating body with several terminal holes and a plurality of conductive terminals, and the conductive terminal has a body part and a body part that are clamped in the terminal holes of the insulating body. A contact part connected at one end. The contact portion has a first contact portion and a second contact portion oppositely arranged, and the insulating body is provided with a plurality of stop bumps corresponding to the contact portions of the conductive terminals, and the stop bumps are in contact with the second contact portion.

Further, the contact portion of the conductive terminal is barrel-shaped, and the end of the contact portion has an opening.

Further, the blocking protrusion extends upward from the upper surface of the insulating body, and the first contact portion and the second contact portion are respectively located at the highest point and the lowest point of the contact portion.

Further, the end of the contact portion extends upward from the second contact portion and passes through the first contact portion in a horizontal direction.

Furthermore, the conductive terminal has an elastic portion located between the main body and the contact portion, the elastic portion is bent upwards and extends out of the insulating body, the opening of the contact portion is close to the elastic portion, the elastic portion includes a first arm connected to the main body, and a first arm connected to the main body. A second arm bent from one arm and extending obliquely upward, and a third arm bent from the second arm and extending obliquely upward, the contact portion is connected to the third arm.

Further, the first arm part is curved, the second arm part and the third arm part are straight, the first arm part of the elastic part is located on one side of the body part, and the second arm part of the elastic part goes over the body part part, the third arm part and the contact part of the elastic part are located on the other side of the body part, the first arm part of the elastic part extends out of the insulating body, and the second arm part, the third arm part and the contact part are located outside the insulating body.

Further, the conductive terminals are arranged in several rows and columns perpendicular to each other on the insulating body, the extending direction of the elastic portion deviates from these rows and these columns, and the contact portion of one conductive terminal extends to the other conductive terminal. Next to the elastic part, the other conductive terminal is located on the adjacent row and adjacent column of the one conductive terminal.

Further, on the sides of each conductive terminal contact portion and the elastic portion, separate bumps are respectively provided on the insulating body, and the partition bumps separate the conductive terminals from the adjacent conductive terminals, and the stop bumps The height is less than the height of the separation bump.

Further, the separation bumps on the side of the contact portion of the same conductive terminal and the separation bumps on the side of the elastic portion are respectively located on two sides of the conductive terminal.

Further, the first contact portion and the second contact portion are respectively located at the lowest point and the highest point of the contact portion, the opening at the end of the contact portion is close to the main body, and the stop bump is located in the insulating main body.

Compared with the prior art, after the contact part of the conductive terminal of the utility model contacts the stop bump of the insulating body, the positive pressure can be sharply increased by a slight deformation of the conductive terminal, thereby ensuring good contact between it and the chip module , reduce the contact resistance between the two, and do not need to extend the terminal, and at the same time meet the requirements of the low configuration of the electrical connector.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 2 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 3 is a top view of the electrical connector of the present invention.

Fig. 4 is a side view of the conductive terminal of the electrical connector of the present invention.

Fig. 5 is a cross-sectional view of the electrical connector of the present invention along line A-A in Fig. 3, and only one terminal is shown in the figure.

Fig. 6 is a cross-sectional view of the electrical connector of the present invention when mated with the chip module.

【Detailed ways】

Please refer to FIG. 1 , FIG. 2 and FIG. 6 , the electrical connector 100 of the present invention is used to electrically connect the chip module 30 and the circuit board (not shown), which includes an insulating body 10 and a plurality of conductive terminals 20 . The insulating body 10 has an opposite upper surface 101 , a lower surface 102 and a plurality of terminal holes 11 penetrating through the insulating body 10 . The upper surface 101 of the insulative housing 10 is provided with a blocking protrusion 103 beside each terminal hole 11 and a separating protrusion 104 outside the blocking protrusion 103 . The blocking protrusion 103 is lower than the separating protrusion 104 . A blocking bump 105 is also provided in the terminal hole 11 .

Please also refer to FIG. 4, the conductive terminal 20 has a body portion 21 that is clamped in the terminal hole 11 of the insulating body 10, and an elastic portion 22 that is bent upwards from the body portion 21 and extends out of the insulating body 10, and is located on the elastic portion 22. The contact portion 23 at the end and the mounting portion 24 extending downward from the body portion 21 . The contact portion 23 is barrel-shaped, and first extends away from the elastic portion 22 and then extends toward the elastic portion 22 . While extending away from the elastic portion 22 , the contact portion 23 first extends upward to form the first contact portion 231 at the highest point, and then extends downward. Then, the contact portion is bent toward the elastic portion 22 again to form a second contact portion 232 at the lowest point, and the end 233 of the contact portion 23 extends upward from the second contact portion 232 and passes through the highest point, that is, the first contact portion in the horizontal direction. Section 231. The end 233 of the contact portion 23 is formed with an opening 234 close to the elastic portion 22 .

2 and 4, the elastic portion 22 includes a first arm portion 221 connected to the body portion 21, a second arm portion 222 bent from the first arm portion 221 and extending obliquely upward, and a second arm portion 222 extending from the second arm portion. 222 is bent and extends obliquely upward to the third arm portion 223 , and the contact portion 23 is connected to the third arm portion 223 . The first arm portion 221 of the mounting portion 24 and the elastic portion 22 is located on one side of the body portion 21, the second arm portion 222 of the elastic portion 22 is over the body portion 21, and the third arm portion 223 and the contact portion 23 of the elastic portion 22 are located on the body the other side of part 21. The first arm portion 221 is curved, and the second arm portion 222 and the third arm portion 223 are straight. The first arm portion 221 of the elastic portion 22 extends out of the insulating body 10 , and the second arm portion 222 , the third arm portion 223 and the contact portion 23 are located outside the insulating body 10 . The mounting portion 24 is also barrel-shaped.

Please refer to FIG. 3 and FIG. 5 , the conductive terminals 20 are arranged in several rows and columns perpendicular to each other on the insulating body 10 , and the extending direction of the elastic portion 22 of the conductive terminals 20 deviates from these rows and these columns. The contact portion 23 of the conductive terminal 20 extends to the side of the elastic portion 22 of another conductive terminal 20 located on the adjacent row and the adjacent column of the conductive terminal 20 . The blocking protrusion 103 of the insulating body 10 is located below the corresponding contact portion 23 of the conductive terminal 20 . The separating bump 104 of the insulating body 10 is located between the contact portion 23 of one conductive terminal 20 and the elastic portion 22 of the other conductive terminal 20 beside the contact portion 23, so as to prevent the contact portion of the two conductive terminals 20 from 23 is in contact with the elastic portion 22 to cause a short circuit. The blocking protrusion 105 in the terminal hole 11 of the insulating housing 10 can contact the mounting portion 24 of the conductive terminal 20 .

Please refer to FIG. 1 , FIG. 5 and FIG. 6 , when the chip module 30 is assembled on the electrical connector 100 , the conductive sheet (not numbered) of the chip module 30 is first docked with the first contact portion 231 of the conductive terminal 20 , and further press down on the conductive terminal 20 , so that the elastic portion 22 of the conductive terminal 20 deforms, driving the contact portion 23 to move downward until the second contact portion 232 contacts the stop bump 103 of the insulating body 10 . Since the contact portion 23 is barrel-shaped and has an opening 234, it can be slightly deformed when it comes into contact with the stop bump 103, and the slight deformation can increase the positive pressure of the chip module 30 to be pressed down sharply. Thereby ensuring good contact between the two. Compared with the existing conductive terminal, the utility model does not need to lengthen the terminal, and the conductive terminal 20 can generate a relatively large positive pressure in the case of a slight deformation, which not only ensures stable contact with the chip module 30, but also reduces two The contact impedance between them; and meet the requirements of low configuration of the electrical connector.

5, when the electrical connector 100 is installed on the circuit board, the conductive terminal 20 is electrically connected to the circuit board. In the embodiment shown in FIGS. 1 to 6, the mounting portion 24 of the conductive terminal 20 It is combined with the circuit board by means of surface contact, of course, it can also be combined by welding. Since the mounting part 24 is barrel-shaped and adopts surface contact with the circuit board, it also has a first contact part (not labeled) and a second contact part (not labeled). At this time, the first contact part is located at the lowest point and the circuit board The part where the plate contacts, while the second contact part is the part that is at the highest point. Since the insulating housing 10 is provided with the stop bump 105 , the stop bump 105 can be in contact with the second contact portion of the mounting portion 24 , so that the mounting portion 24 can be slightly deformed to provide sufficient contact force.

Please refer to Fig. 1 and Fig. 3, in order to meet the requirement of high density, the conductive terminals 20 of the present invention are closely arranged, and the distance between the contact part 23 and the elastic part 22 belonging to different conductive terminals 20 is relatively close, so in The upper surface 101 of the insulating body 10 is provided with a separating protrusion 104 between the contact portion 23 of the different conductive terminals 20 and the elastic portion 22 to prevent the two from contacting. In other words, the contact portion 23 and the side of the elastic portion 22 of each conductive terminal 20 are provided with a separation bump 104 , and the separation bump 104 on the side of the contact portion 23 of the same conductive terminal 20 is separated from the side of the elastic portion 22 . The separation bumps 104 are respectively disposed on two sides of the conductive terminal 20 to isolate the conductive terminal 20 from other conductive terminals 20 . Through this, it is possible to prevent the different conductive terminals 20 from contacting each other, thereby avoiding the occurrence of a short circuit.

Claims (10)

1. An electrical connector, which includes an insulating body with several terminal holes and a plurality of conductive terminals, the conductive terminal has a body portion held in the terminal hole of the insulating body and a contact portion connected to one end of the body portion; it is characterized in that: The contact portion has a first contact portion and a second contact portion oppositely arranged, and the insulating body is provided with a plurality of stop bumps corresponding to the contact portions of the conductive terminals, and the stop bumps are in contact with the second contact portion. 2. The electrical connector as claimed in claim 1, wherein the contact portion of the conductive terminal is barrel-shaped, and an end of the contact portion has an opening. 3. The electrical connector according to claim 2, wherein the stop protrusion extends upward from the upper surface of the insulating body, and the first contact portion and the second contact portion are respectively located at the highest point and the top of the contact portion. lowest point. 4. The electrical connector as claimed in claim 3, wherein the end of the contact portion extends upward from the second contact portion and passes through the first contact portion in a horizontal direction. 5. The electrical connector according to claim 2, wherein the conductive terminal has an elastic portion located between the body portion and the contact portion, the elastic portion bends upwards and extends out of the insulating body, the opening of the contact portion is close to the elastic portion, and the elastic portion The part includes a first arm part connected with the body part, a second arm part bent from the first arm part and extending obliquely upward, and a third arm part bent from the second arm part and extending obliquely upward, the contact part and the first arm part The three arms are connected. 6. The electrical connector according to claim 5, wherein the first arm is curved, the second arm and the third arm are straight, and the first arm of the elastic part is located on the body One side of the body part, the second arm part of the elastic part crosses the body part, the third arm part of the elastic part and the contact part are located on the other side of the body part, the first arm part of the elastic part extends out of the insulating body, and the second arm part , the third arm part and the contact part are located outside the insulating body. 7. The electrical connector according to claim 5, wherein the conductive terminals are arranged in several rows and columns perpendicular to each other on the insulating body, and the extending direction of the elastic portion deviates from these rows and these columns, The contact portion of one conductive terminal extends to the side of the elastic portion of the other conductive terminal, and the other conductive terminal is located on the adjacent row and adjacent column of the one conductive terminal. 8. The electrical connector as claimed in claim 7, characterized in that: on the side of each conductive terminal contact portion and the elastic portion, separate protrusions are respectively provided on the insulating body, and the separation protrusions separate the conductive terminals from the insulating body. The adjacent conductive terminals are spaced apart, and the height of the blocking bump is smaller than the height of the separating bump. 9 . The electrical connector as claimed in claim 8 , wherein the separating protrusions on the side of the contact portion and the separating protrusions on the side of the elastic portion of the same conductive terminal are respectively located on two sides of the conductive terminal. 10. The electrical connector according to claim 2, wherein the first contact portion and the second contact portion are respectively located at the lowest point and the highest point of the contact portion, and the opening at the end of the contact portion is close to the main body, so The above-mentioned blocking protrusion is located in the insulating body.

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