TWM499688U - Ball-type BGA plug connector - Google Patents

Description

Spherical BGA plug connector

This creation relates to the field of connector products, specifically a spherical BGA plug connector.

An electrical connector is a connecting bridge that electrically connects and transmits between devices and devices, components and components, systems and systems, and is a fundamental component of a complete system.

The full name of the BGA is the Ball Grid Array, which is a package method in which the integrated circuit uses an organic carrier. It has the following characteristics: reduced package area; increased function, increased pin count; PCB board self-centering during soldering, easy to tin; high reliability; good electrical performance, low overall cost. The use of the BGA connection method has become a development direction of the electrical connector connecting the chip module because of the above advantages, but in actual use, the existing BGA electrical connector has many problems.

The BGA electrical connector generally includes a matching BGA socket and a BGA plug. The BGA plug generally includes: an insulating seat, a terminal set installed in the insulation, and a plastic back cover for packaging the terminal set in the insulating seat, wherein The front end of the insulating seat is provided with a tongue plate for connecting with the BGA socket. The contact portion of the terminal in the terminal group is exposed outside the tongue plate, and the pin portion of the terminal is exposed through the plastic back cover to the rear end surface of the plastic back cover. The insulating seat and the plastic back cover are through the card bit The method is fixed. For example, the plastic back cover is formed with a barb, and the insulating seat is formed with a card slot. When the plastic back cover is stuck on the insulating seat, the barb on the plastic back cover is embedded in the card slot on the insulating seat. And forming a positioning, so that the plastic back cover and the insulating seat form a stable assembly. However, when the barb on the plastic back cover is embedded in the card slot on the insulating seat, it is difficult to disassemble. In addition, the plastic back cover and the insulating seat are all injection molded from plastic. That is to say, the barbs and the card slots are all plastic structures, the stability is not high, and the phenomenon of breakage is easy, resulting in the service life of the entire connector. high. The terminal group generally includes a plurality of signal terminals and grounding terminals, which are all installed in the terminal holes of the insulating seat by direct insertion. However, since the signal terminals and the grounding terminals are relatively slender, the bending is easy during the assembly process. Folded, so assembly is very troublesome.

The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a spherical BGA plug connector that can be assembled quickly, has a stable structure, and has strong resistance to damage.

In order to solve the above technical problem, the present invention adopts the following technical solution: the spherical BGA plug connector comprises: a second insulating seat, the front end of the second insulating seat is provided with a pair of connecting spaces and a plurality of butt tongues formed in the docking space; The rear end of the second insulating seat is formed with a plurality of mounting spaces arranged side by side, wherein the mounting space is provided with a plurality of terminal holes penetrating through the two end faces of the mating tongue; the periphery of the second insulating seat is respectively provided with a plurality of ribs; The terminal assembly is correspondingly inserted and fixed in the installation space; an insulating cover body has a receiving groove, and a common iron piece is mounted on the inner side of the receiving groove, and the common iron piece has a plurality of elastic forces capable of rebounding after being pressed The insulating cover body is sleeved on the rear end of the second insulating seat through the receiving sleeve, wherein the elastic buckle arm of the common iron piece is fastened and fixed with the card rib, so that the insulating cover body and the second insulating seat form a stable assembly .

After adopting the above technical solution, the present invention has the following comparison with the prior art. Benefit effect:

1. Each group of signal terminal groups and each group of ground terminal groups are alternately distributed in the plastic body, and each of the limiting pins in the grounding tab is located outside the group of signal terminal groups, thereby greatly improving the product. Anti-interference performance. In addition, the first and second contact portions of the first and second signal terminals have the same shape and are arranged side by side at the lower end of the plastic body, and the shapes of the first and second soldering portions of the first and second signal terminals are symmetrical. And symmetrically distributed on the upper end of the plastic body; the structure of the ground terminal group is consistent with the structure of the signal terminal group. When the terminal assembly of the structure is in contact with the BGA socket, the contact is more stable, and the plating layer around the contact portion is not damaged, so that the signal transmission can be more stable.

2. The common iron piece with the elastic buckle arm is fixedly mounted in the insulating cover body, and the insulating cover body is fastened to the card rib in the second insulating seat by the elastic buckle arm of the common iron piece, and the guiding rib is provided with guiding The active guiding bevel allows the insulating cover to be assembled quickly with the second insulating seat and form a stable assembly. The common iron piece is not only used for fastening and fixing with the second insulating seat, but also can enhance the damage resistance of the insulating cover body. In addition, the common iron piece can also be used for the BGA socket that is docked with the original creation, that is, The public iron sheet can be used for both the socket and the plug, so that the mold opening cost can be effectively reduced and the market competitiveness of the creation can be improved.

3. The guiding protrusion formed on the outer side of the plastic body is embedded in the second guiding groove in the second insulating seat to form zero interference, that is, a single nesting combination between them, so that the assembly is more fast and convenient.

4. The grounding fork piece installed in the second insulating seat can enhance the damage resistance of the entire second insulating seat structure to a certain extent, and can also exert certain anti-interference performance. In addition, the contact plate of the grounding fork piece is used for The external BGA socket is in contact with each other to ensure that the creation is docked with the BGA socket. Stability, improve the stability of electrical conduction.

6‧‧‧Second insulation

61‧‧‧ docking space

62‧‧‧Connecting tongue

63‧‧‧Installation space

631‧‧‧Terminal hole

632‧‧‧Second guide slot

64‧‧‧Carri

641‧‧ ‧ leading bevel

65‧‧‧First guide slot

66‧‧‧ Grounding fork

661‧‧‧Limited pins

662‧‧‧Contact plate

663‧‧‧ body plate

664‧‧‧welding feet

665‧‧‧ solder balls

67‧‧‧Installation slot

671‧‧‧ hole position

700‧‧‧Terminal components

70‧‧‧ terminals

701‧‧‧ Signal Terminal Group

702‧‧‧Ground terminal group

703‧‧‧ solder ball

704‧‧‧ solder balls

71‧‧‧Plastic body

711‧‧‧ Orthodontic

72‧‧‧First signal terminal

721‧‧‧First contact

722‧‧‧First Welding Department

723‧‧‧First Main Body

73‧‧‧second signal terminal

731‧‧‧Second contact

732‧‧‧Second Welding Department

733‧‧‧Second Main Body

74‧‧‧First grounding terminal

75‧‧‧Second ground terminal

8‧‧‧Insulating cover

81‧‧‧ 容容

811‧‧‧guided boss

82‧‧‧public iron tablets

821‧‧‧Flexible arm

822‧‧‧ first board

823‧‧‧ positioning feet

83‧‧‧Installation

831‧‧‧Let space

84‧‧‧Perforation

Figure 1 is a perspective view of the creation; Figure 2 is a perspective view of another perspective of the creation; Figure 3 is a perspective view of the second insulation seat in the present creation; and Figure 4 is an insulating cover and a common iron piece in the present creation. Fig. 5 is a perspective view of the insulating cover in the present creation; Fig. 6 is a perspective view of the insulating cover in another view; Fig. 7 is a perspective view of the common iron piece in the present creation; The perspective view of the terminal assembly after the removal of the insulating cover; the figure 9 is a perspective view of the terminal assembly in the present creation; the 10th is a perspective view of the signal terminal group in the present creation; the 11th is the left view of the 10th; the 12th is the first 8 is a bottom view; FIG. 13 is a cross-sectional view taken along line AA of FIG. 12; and FIG. 14 is a perspective view of the grounding fork in the present creation.

The present invention will be further described below in conjunction with specific embodiments and drawings.

Referring to Figures 1 and 2, a ball-shaped BGA plug connector includes: a second insulator 6, a plurality of terminal assemblies 700 mounted to the rear end of the second insulator 6, and a terminal assembly 700 for second insulation. Insulation cover 8 of the seat 6.

As shown in FIG. 3, the front end of the second insulating seat 6 is provided with a mating space 61 and a plurality of abutting tongues 62 formed in the mating space 61. The rear end of the second insulating seat 6 is formed with a plurality of mounting spaces 63 arranged side by side. The mounting space 63 is provided with a plurality of terminal holes 631 penetrating through the opposite end faces of the mating tongue 62; a plurality of latching ribs 64 are respectively disposed around the periphery of the second insulating seat 6.

As shown in FIG. 4 to FIG. 6 , the insulating cover 8 has a receiving groove 81 , and the insulating cover 8 is sleeved on the rear end of the second insulating seat 6 through the receiving groove 81 . A common iron piece 82 is mounted on the inner side of the circumference, and the common iron piece 82 has a plurality of elastic buckle arms 821 that can be rebounded after being pressed; the insulating cover body 8 is buckled by the elastic buckle arms 821 and the ribs 64 of the common iron piece 82. The fixing is combined to form a stable assembly of the insulating cover 8 and the second insulating seat 6. After the insulating cover 8 of the above structure and the second insulating seat 6 are fastened together, the whole is relatively stable, and the common iron piece 82 can enhance the damage resistance of the insulating cover 8. In addition, the common iron piece can be docked with the original. The BGA socket is used, that is, the common iron piece can be used for both the socket and the plug, so that the mold opening cost can be effectively reduced.

The insulating cover 8 is provided with a mounting position 83 for inserting and fitting the common iron piece 82, and a seating space 831 which is penetrated from the mounting position 83 and is resilient when the elastic buckle arm 821 is stressed.

The thickness of the intermediate portion of the insulating cover 8 can be flexibly changed according to actual needs. Specifically, when the insulating cover 8 is injection molded, the thickness of the intermediate portion of the molded insulating cover 8 is controlled, so that the entire connector can be controlled. thickness.

As shown in FIG. 7 , the common iron piece 82 includes a first plate body 822 and a plurality of positioning legs 823 formed at the ends of the first plate body 822 . The elastic buckle arms 821 are formed on the first plate body 822 . The end portion is located beside the positioning leg 823, and the elastic buckle arm 821 has a mouth shape.

The two sides of the positioning leg 823 are respectively provided with barbs for positioning, and the barbs can be The contact stability between the common iron piece 82 and the insulating cover 8 is enhanced.

As shown in FIG. 8 , the rib 64 is provided with a guiding inclined surface 641 for guiding the elastic buckle arm 821 to be engaged. The guiding inclined surface 641 can facilitate the assembly and engagement of the elastic buckle arm 821 and the rib 64 . That is, the elastic buckle arm 821 can be quickly engaged with the rib 64 to improve assembly efficiency. During assembly, the elastic buckle arm 821 is pressed and guided outwardly under the guiding action of the guiding slope 641 of the rib 64 to have a resilient restoring force when the front end of the elastic buckle arm 821 moves away from the guiding slope 641. When the elastic buckle arm 821 is rebounded, the elastic buckle arm 821 is fastened to the rib 64, so that the insulating cover 8 is stably installed in the second insulating seat 6.

The insulating cover 8 is further formed with a plurality of guiding bosses 811 on the inner side of the receiving groove 81, and a first guiding groove corresponding to the guiding boss 811 is further disposed around the periphery of the second insulating seat 6 65, the guiding boss 811 is inserted into the first guiding groove 65. This structure makes it possible to assemble the insulating cover 8 into the second insulating seat 6 more quickly and conveniently.

As shown in FIG. 9 , the terminal assembly 700 is inserted and fixed in the mounting space 63 of the second insulating seat 6 . The terminal assembly 700 includes a plastic body 71 and a plurality of terminals 70 integrally fixed to the plastic body 71. The plastic body 71 is inserted into the mounting space 63, and the front end of the terminal 70 passes through the terminal in the second insulating seat 6. The holes 631 are exposed on both ends of the butt tongue 62 for guiding to the BGA socket.

When the terminal assembly 700 is assembled with the second insulating seat 6, since the terminal 70 is integrally fixed with the plastic body 71, such a structure is assembled more quickly, and the terminal does not have a bending phenomenon, thereby ensuring the quality of the entire product.

The terminal 70 includes a signal terminal group 701 and a ground terminal group 702, which are integrally fixed with the plastic body 71, and each group of signal terminal groups 701 and each group of ground terminal groups 702 are alternately distributed in the plastic body 71, and the assembly manner of the terminal 20 can greatly improve the anti-interference performance of the product. In addition, a plurality of grounding lugs 66 are disposed in the second insulating base 6 , and the grounding lug 66 is located on the front side or the rear side of the terminal assembly 700 , and the grounding lug 66 has a plurality of limiting pins 661 , and each of the limiting legs 661 The bit pin 661 is located outside the group of signal terminal groups 701. The grounding pin 66 has good anti-interference performance on the signal terminal group 701, so as to effectively improve the guiding performance of the present invention.

As shown in FIG. 10 and FIG. 11 , each of the signal terminal groups 701 includes a first signal terminal 72 and a second signal terminal 73. The shape of the first contact portion 721 and the second signal terminal of the first signal terminal 72 are included. The shape of the first contact portion 731 is the same as that of the second signal portion 73 in the first signal terminal 72. The two soldering portions 732 have the same shape and are exposed in a symmetric manner to the upper end of the plastic body 71. The structure of the grounding terminal group 702 is identical to the structure of the signal terminal group 701. When the terminal assembly of the structure is in contact with the BGA socket, the contact is more stable, and the plating layer around the contact portion is not damaged, so that the signal transmission can be more stable.

The first signal terminal 72 includes a first body portion 723, the first soldering portion 722 bent back along the upper end of the first body portion 723, and is bent forward along the lower end of the first body portion 723. After the burr-treated first contact portion 721, the first contact portion 721 has a straight strip shape, and the first body portion 723 and the first solder portion 722 and the first contact portion 721 are parallel to each other. The second signal terminal 73 includes a second main body portion 733, the second welded portion 732 bent forward along the upper end of the second main body portion 733, and bent forward along the lower end of the second main body portion 733. And the second contact portion 731 is subjected to the burr processing, the second contact portion 731 is in a straight strip shape, and the second body portion 733 and the second solder portion 732 and the second contact portion 731 are parallel to each other. As described above, the first signal terminal 72 and the second signal terminal 73 only have the first soldering portion 722 and the first The two welded portions 732 are bent in opposite directions to be mirror-symmetrical to each other, and the other structures are identical.

The first contact portion 721 of the first signal terminal 72 and the second contact portion 731 of the second signal terminal 73 are exposed through the terminal holes 631 in the second insulating seat 6 to be exposed outside the opposite ends of the butting tongue 62. The first and second soldering portions 722, 732 of the first and second signal terminals 72, 73 are each provided with a solder ball 703.

Each set of the grounding terminal group 702 includes a first grounding terminal 74 and a second grounding terminal 75, wherein the first grounding terminal 74 and the second grounding terminal 75 are respectively shaped to the first signal terminal 72 and the second The signal terminals 73 have the same shape, wherein the first ground terminal 74 is located beside the second signal terminal 73, and the second ground terminal 75 is located beside the first signal terminal 72.

Solder balls 704 are disposed at the ends of the welded portions of the first and second ground terminals 74, 75.

As shown in FIG. 12, the rear end of the second insulating seat 6 is formed with a plurality of side-by-side mounting slots 67, the mounting slots 67 are located on the side of the mounting space 63, and the grounding lug 66 is mounted in the mounting slot 67. .

The second insulating seat 6 is disposed on the two sides of the mounting groove 67 with a hole 671 extending through the inner wall of the mating space 61. The contact plate 662 of the grounding lug 66 is inserted into the hole 671 and is exposed. The inner wall of the docking space 61 and the barb on the outer side of the limiting pin 661 are engaged with the mounting groove 67, so that the grounding fork 66 is stably installed in the mounting groove 67.

After the grounding lug 66 is installed in the second insulating seat 6, the damage resistance of the entire second insulating seat 6 structure can be enhanced to a certain extent, and the anti-interference performance can be achieved, and the contact of the grounding fork 66 is also provided. The plate 662 is used to interfere with the external BGA socket to ensure the stability of the connection between the creation and the BGA socket, and improve the stability of the electrical continuity.

A plurality of guiding protrusions 711 are formed on the outer side of the plastic body 71. The second insulating seat 6 is disposed on the inner side of the mounting space 63 with a second guiding groove 632 corresponding to the guiding protrusions 711. The guiding protrusions 711 are embedded in the second guiding grooves 632 to form zero interference, that is, a single nested joint therebetween, which is quicker and more convenient to assemble.

The insulating cover 8 is formed with a plurality of through holes 84 for the ends of the terminals 70 and the ends of the soldering legs 664, and the first and second soldering portions 722 of the first and second signal terminals 72, 73 of the terminals 70. The end of the soldering portion of the first and second grounding terminals 74, 75 and the end of the soldering leg 664 respectively pass through the through hole 84, and the ends of the soldering portions of the first and second grounding terminals 74, 75 are disposed. The solder balls 703 and the solder balls 703 provided on the first and second soldering portions 722 and 732 of the first and second signal terminals 72 and 73 and the solder balls 665 disposed at the ends of the soldering legs 664 are exposed outside the through holes 84.

Of course, the above description is only for the specific embodiment of the present invention, and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, features and principles described in the scope of the patent application of the present invention should be included in This creation is within the scope of the patent application.

6‧‧‧Second insulation

61‧‧‧ docking space

62‧‧‧Connecting tongue

631‧‧‧Terminal hole

662‧‧‧Contact plate

671‧‧‧ hole position

700‧‧‧Terminal components

70‧‧‧ terminals

8‧‧‧Insulating cover

Claims (10)

A spherical BGA plug connector, comprising: a second insulating seat, a front end of the second insulating seat is provided with a pair of connecting spaces and a plurality of butt tongues formed in the docking space; and a rear end of the second insulating seat is formed with a plurality of juxtaposition a distributed installation space, wherein the installation space is provided with a plurality of terminal holes penetrating the two end faces of the butt tongue plate; a plurality of card ribs are respectively disposed around the periphery of the second insulation seat; and a plurality of terminal assemblies are correspondingly inserted and fixed to the installation In the space, an insulating cover body has a receiving groove, and a common iron piece is mounted on the inner side of the receiving groove, and the common iron piece has a plurality of elastic buckle arms which can be rebounded after being forced; the insulating cover body passes through the same The receiving sleeve is sleeved on the rear end of the second insulating seat, wherein the elastic buckle arm of the common iron piece is fastened and fixed with the card rib, so that the insulating cover body and the second insulating seat form a stable assembly. The spherical BGA plug connector of claim 1, wherein the common iron piece comprises: a first plate body and a plurality of positioning legs formed at an end of the first plate body, wherein the elastic buckle arm is formed in the first The end of the plate body is located on the side of the positioning foot. The spherical BGA plug connector of claim 2, wherein the two sides of the positioning leg are respectively provided with barbs for positioning. The spherical BGA plug connector of claim 1, wherein the elastic snap arms are in the shape of a mouth. The spherical BGA plug connector of claim 1, wherein the rib is provided with a guiding slope for guiding the elastic buckle arm to be engaged. The spherical BGA plug connector of claim 1, wherein the insulating cover body is further formed with a plurality of guiding bosses on the inner side of the receiving groove, and the second insulating seat is further provided around the periphery of the second insulating seat. A first guiding groove corresponding to the guiding boss is disposed, and the guiding boss is inserted into the first guiding groove. The spherical BGA plug connector according to claim 1, wherein the insulating cover body is provided with a mounting position for inserting and fitting the common iron piece, and is connected with the mounting bit and is used for stressing the elastic buckle arm. The space that can be rebounded. The spherical BGA plug connector according to any one of claims 1 to 7, wherein the terminal assembly comprises: a plastic body and a plurality of terminals integrally fixed with the plastic body, the plastic body being inserted into the mounting In the space, the front end of the terminal is exposed through the terminal hole in the second insulating seat to be exposed outside the opposite ends of the butting tongue. The spherical BGA plug connector of claim 8, wherein a plurality of guiding protrusions are formed on the outer side of the plastic body, and the second insulating seat is provided on the inner side of the installation space with a second corresponding to the guiding protrusions. Guide groove. The spherical BGA plug connector of claim 8, wherein the insulating cover is formed with a plurality of perforations for the end of the terminal, and the end of the terminal is provided with a solder ball, the solder ball is exposed outside the perforation. .