CN110556654A - Plug, socket and connector combination of board-to-board connector - Google Patents

Abstract

The invention relates to the field of connectors, in particular to a board-to-board connector plug, a socket and a connector combination, in which the buckling boss of the board-to-board connector socket is matched with the second buckling groove of the board-to-board connector plug, The second terminal of the board-to-board connector socket is matched with the first terminal of the board-to-board connector plug, and the first buckle protrusion is matched with the first buckle groove at the contact point between the first terminal and the second terminal. The buckle type with high contact reliability is to improve the combined force of the board-to-board connector socket and plug. While improving the combined force, the plug and socket are locked more firmly and the plugging force is strong.

Description

A board-to-board connector plug, socket and connector combination

technical field

The invention relates to the field of connectors, in particular to a board-to-board connector plug, socket and connector combination.

Background technique

A board-to-board connector is a connector used in electronic products to realize signal transmission between two circuit boards. Generally, a board-to-board connector includes a plug connector and a socket connector that are inserted into each other. The plug connector and the receptacle connector are respectively welded to corresponding circuit boards through the welding portions of their conductive terminals, so that the connectors are respectively fixed to the corresponding circuit boards. When the plug connector is inserted into the socket connector, the electrical connection between the two circuit boards can be achieved.

In the existing board-to-board connector combination, the contact part between the terminal on the socket and the terminal on the plug usually adopts a contact structure, the combination force of the two terminals is small, and the connector is plugged in and out for many times or the plugging force is too large , it is very easy to cause the terminal elasticity on the socket to lose, resulting in the combination force of the connector socket terminal and the plug terminal becoming smaller, so that poor contact affects the normal transmission of signals in electronic products.

Contents of the invention

The object of the present invention is to provide a board-to-board connector socket, plug and connector combination. At the contact point between the first terminal and the second terminal, the first buckle protrusion is matched with the first buckle groove, and the contact is reliable. The high-performance snap-on type is to improve the combined force of the board-to-board connector socket and plug. While improving the combined force, it makes the plug and socket more secure when locked, and the plugging force is strong.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a board-to-board connector socket, including a second insulating plastic shell, a number of second terminals arranged on the second insulating plastic shell, and a plurality of second terminals arranged on the second insulating plastic shell. The ground sheets at both ends of the shell, the second insulating plastic shell is provided with a first fastening groove, the middle part of the first fastening groove is provided with a fastening boss, and the two ends of the fastening boss are at the bottom of the first fastening groove A positioning protrusion is provided, and the two sides of the fastening boss are symmetrically provided with a first slot penetrating through the bottom of the second insulating plastic shell. The bottom of the second insulating plastic shell.

Preferably, the second terminal includes a second fixing portion that is plugged into the second slot, one end of the second fixing portion is provided with a second welding portion extending along both sides of the second insulating plastic shell, and the second fixing portion The other end is provided with a reversely bent first buckle portion, the first buckle portion is provided with a first buckle groove on the side facing the first fastening groove, and the lower end of the first buckle portion faces the first slot There is a first elastic bend extended in the direction of bending, the right end of the first elastic bend is bent and extended into the first fastening groove, and a second elastic bend is extended, and the end of the second elastic bend faces into the first fastening groove There is a third elastic bending part extended by bending, and the third elastic part is a circular arc barbed structure.

Preferably, the opening width of the first locking groove is equal to the width of the second terminal.

Preferably, the included angle between the first elastic bending portion and the horizontal direction ranges from 5° to 10°.

Preferably, the ground sheet includes a ground sheet main body embedded in the surface of the end of the second insulating plastic shell, the two ends of the ground sheet main body are respectively provided with vertically bent extension parts of the ground sheet, and the ends of the extension parts of the ground sheet are directed toward the second insulating shell. There are third welding parts extending on both sides of the rubber shell, and the middle part of the main body of the ground sheet is provided with a ground sheet fixing part embedded in the second insulating plastic shell.

The present invention also provides a board-to-board connector plug, which includes a first insulating plastic shell, several first terminals arranged on the first insulating plastic shell, and fixing pieces embedded in both ends of the first plastic shell. The surface of an insulating plastic shell is provided with a second fastening groove, the first terminals are fixedly arranged on the groove wall of the second fastening groove and arranged evenly, the two ends of the first insulating plastic shell are provided with positioning grooves, and the fixing piece extending along both sides of the first insulating plastic shell.

Preferably, the first terminal includes a first fixing part embedded in the inner surface of the second fastening groove, and one end of the first fixing part is provided with a second buckle part bent and extended along the outer surface of the second fastening groove. The other end of the fixed part is provided with a welded bent part extending toward the outside of the first insulating plastic shell, the welded bent part is provided with a first welded part, and the side of the first fixed part facing the second fastening groove is provided with a second Two buckle grooves, the surface of the second buckle part is provided with a first buckle protrusion.

Preferably, the length of the first locking protrusion is equal to the width of the first terminal.

Preferably, the upper end of the second buckle part is provided with a fixed bent part inserted into the first insulating plastic shell.

The present invention also provides a board-to-board connector combination, including a board-to-board connector socket and a board-to-board connector plug. The two fastening grooves are matched, and the second terminal of the board-to-board connector socket is matched with the first terminal of the board-to-board connector plug.

The beneficial effects of the present invention are: the first terminal on the board-to-board connector socket and the second terminal on the board-to-board connector plug cooperate with the first buckle groove through the first buckle protrusion, and at the same time, through the third elastic The curved part fits with the second buckle groove, and the buckle type with high contact reliability improves the combined force of the board-to-board connector socket and plug, making the board-to-board connector combination compact, and its current and signal transmission. The speed and quality have been greatly improved. While improving the combined force, the plug and socket are locked more firmly, and the plugging force is strong.

Description of drawings

FIG. 1 is a cross-sectional view of a board-to-board connector assembly according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a board-to-board connector socket according to an embodiment of the present invention.

Fig. 3 is another structural schematic diagram of the board-to-board connector socket according to the embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a second terminal according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a ground sheet according to an embodiment of the present invention.

FIG. 6 is a schematic structural diagram of a board-to-board connector plug according to an embodiment of the present invention.

FIG. 7 is a schematic structural diagram of a first terminal according to an embodiment of the present invention.

FIG. 8 is a schematic structural diagram of a board-to-board connector assembly according to an embodiment of the present invention.

FIG. 9 is another structural schematic diagram of a board-to-board connector assembly according to an embodiment of the present invention.

Fig. 10 is a schematic structural view of the section B-B in Fig. 8 .

The text marked in the figure is expressed as: 1. The first insulating plastic shell; 2. The second insulating plastic shell; 3. The first terminal; 4. The fixed piece; 5. The second terminal; 6. The ground piece; 7. Positioning Convex part; 8. Fastening boss; 9. Terminal slot; 10. First fastening groove; 11. Positioning groove; 12. First slot; 13. Second fastening groove; 31. First welding part 32, the first fixing part; 33, the second buckle groove; 34, the second buckle part; 35, the fixed bending part; 36, the welding bending part; 37, the first buckle protrusion, 51, the second Welding part; 52, second fixing part; 53, first buckle part; 54, first elastic bend part; 55, second elastic bend part; 56, first buckle groove; 57, third elastic bend part; 60. The ground sheet fixing part; 61. The floor sheet extension part; 62. The third welding part; 63. The ground sheet main body.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. .

Example 1

As shown in Figures 1 to 5, the structure of the present invention is: a board-to-board connector socket, including a second insulating plastic shell 2, a number of second terminals 5 arranged on the second insulating plastic shell 2 and a set of On the ground sheets 6 at both ends of the second insulating plastic shell 2, the second insulating plastic shell 2 is provided with a first fastening groove 10, and the middle part of the first fastening groove 10 is provided with a fastening boss 8, and the fastening convex Both ends of the table 8 are provided with positioning protrusions 7 at the bottom of the first fastening groove 10, and the two sides of the fastening boss 8 are symmetrically provided with a first slot 12 penetrating through the bottom of the second insulating plastic shell 2, and the first fastening A second slot 9 is provided on the slot wall of the slot 10 , and the second slot 9 runs through the bottom of the second insulating plastic shell 2 .

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the second terminal 5 includes a second fixing part 52 which is mated with the second slot 9, and one end of the second fixing part 52 is provided with a The second welding part 51 extending from both sides of the shell 2, the other end of the second fixing part 52 is provided with a reversely bent first buckle part 53, the first buckle part 53 facing the first buckle groove 10 One side is provided with a first buckle groove 56, and the lower end of the first buckle portion 53 is bent toward the direction of the first slot 12 to extend a first elastic bend portion 54, and the right end of the first elastic bend portion 54 faces toward the first buckle. A second elastic bend 55 is bent and extended in the joint groove 10, and a third elastic bend 57 is bent and extended from the end of the second elastic bend 55 toward the first buckle groove 10, and the third elastic portion 57 is a circular arc. The barb structure, the third elastic bending part 57 is bent inward to improve the insertion and extraction force between the board-to-board connector plug and the board-to-board connector socket, and the third elastic bending part 57 of the arc barb structure makes The terminals on the connector plug are easier to insert or extract.

As shown in FIG. 4 , the opening width of the first locking groove 56 is equal to the width of the second terminal 5 , and the first locking groove 56 is provided to increase the contact area of the second terminal 5 .

As shown in FIG. 1 , the angle between the first elastic bending portion 54 and the horizontal direction ranges from 5° to 10°. By bending the first elastic bending portion 54 upward, it is beneficial to improve the elastic force of the second terminal 5 .

As shown in Figure 5, the ground sheet 6 includes a ground sheet main body 63 embedded in the surface of the end of the second insulating plastic shell 2, and the two ends of the ground sheet main body 63 are respectively provided with vertically bent extension parts 61, and the ground sheet extends The end of the part 61 extends to both sides of the second insulating plastic shell 2 with a third welding portion 62, and the middle part of the ground sheet main body 63 is provided with a ground sheet fixing part 60 embedded in the second insulating plastic shell 2. By placing the ground sheet 6 Embedding in the end of the second insulating plastic shell 2 can protect the second insulating plastic shell 2 and prevent the end of the second insulating plastic shell 2 from being worn.

As shown in Figure 6, the present invention also provides a board-to-board connector plug, including a first insulating plastic shell 1, a number of first terminals 3 arranged on the first insulating plastic shell 1, and a plurality of first terminals 3 embedded in the first rubber shell. The fixed piece 4 inside the two ends of the shell 1, the surface of the first insulating plastic shell 1 is provided with a second fastening groove 13, the first terminal 3 is fixedly arranged on the groove wall of the second fastening groove 13 and arranged uniformly, the first Positioning grooves 11 are provided on the surface of both ends of the insulating plastic shell 1, and the fixed piece 4 extends along both sides of the first insulating plastic shell 1. The first terminal 3 is integrally injection-molded with the first insulating plastic shell 1, and is welded through the fixed piece 4. on the circuit board.

As shown in Fig. 1, Fig. 6 and Fig. 7, the first terminal 3 includes a first fixing part 32 embedded in the inner surface of the second fastening groove 13, and one end of the first fixing part 32 is provided along the second fastening groove 13. The second buckle part 34 is bent and extended on the outer surface, and the other end of the first fixing part 32 is provided with a welding bending part 36 extending toward the outside of the first insulating plastic shell 1, and the welding bending part 36 is provided with a first welding part 31, the first fixing part 32 is provided with a second buckle groove 33 on the side facing the second buckle groove 13, and the surface of the second buckle part 34 is provided with a first buckle protrusion 37, which adopts contact reliability The high snap fit improves the combined force of the board-to-board connector receptacle and plug.

As shown in Figure 7, the length of the first buckle protrusion 37 is equal to the width of the first terminal 3, and the first buckle protrusion 37 is provided in order to increase the contact area between the first terminal 3 and the second terminal 5 and improve the first terminal 3. The fastening force between the first terminal 3 and the second terminal 5 solves the problem of poor contact between the two terminals, and greatly improves the speed and quality of current and signal transmission.

As shown in Figure 1 and Figure 7, the upper end of the second buckle part 34 is provided with a fixed bent part 35 inserted into the first insulating plastic shell 1, through which the fixed bent part 35 is bent and inserted into the first insulating plastic shell 1, The combination of the first terminal 3 and the first insulating plastic shell 1 can be made firmer to prevent loosening.

As shown in Figure 1, Figure 8, Figure 9 and Figure 10, the present invention also provides a board-to-board connector combination, including a board-to-board connector socket and a board-to-board connector plug, wherein the board-to-board connector The fastening boss 8 of the socket is matched with the second fastening groove 13 of the board-to-board connector plug, the second terminal 5 of the board-to-board connector socket is matched with the first terminal 3 of the board-to-board connector plug, and the contact is adopted. The high-reliability snap-in implementation method improves the combined force of the board-to-board connector socket and plug, making the board-to-board connector combination compact, and greatly improving the speed and quality of current and signal transmission. While improving the combination force, the insertion and extraction force between the board-to-board connector plug and the board-to-board connector socket is increased to prevent loose contact or poor contact between the first terminal 3 and the second terminal 5 .

In specific use, the first terminal 3 on the board-to-board connector socket and the second terminal 5 on the board-to-board connector plug cooperate with the first buckle groove through the first buckle protrusion, when the second terminal 5 is inserted When the first terminal 3 is inside, the second elastic bending part 55 of the first terminal 3 is squeezed out, and the second elastic bending part 55 and the first elastic bending part 54 exert a pressing force on the second terminal 5, thereby improving the connection between the two terminals. At the same time, the third elastic bending part 57 is matched with the second buckle groove 33, and the buckle type with high contact reliability is adopted to improve the combined force of the board-to-board connector socket and plug, so that the board-to-board connector combination The compact structure greatly improves the speed and quality of current and signal transmission. While improving the combined force, it also improves the plugging force between the board-to-board connector plug and the board-to-board connector socket, preventing the second The contact part between the first terminal 3 and the second terminal 5 is loose or poorly connected.

It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or apparatus.

In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method of the present invention and its core idea. The above is only a preferred implementation of the present invention. It should be pointed out that , due to the limitation of written expression, there are objectively unlimited specific structures. For those of ordinary skill in the art, without departing from the principle of the present invention, some improvements, modifications or changes can also be made. The above-mentioned technical features can be combined in an appropriate manner; these improvements, changes or combinations, or direct application of the inventive idea and technical solution to other occasions without improvement should be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a board to board connector socket, includes second insulating rubber shell (2), sets up a plurality of second terminal (5) on second insulating rubber shell (2) and sets up ground piece (6) at second insulating rubber shell (2) both ends, its characterized in that: the insulating glue packaging structure is characterized in that a first buckling groove (10) is formed in the second insulating glue shell (2), a buckling boss (8) is arranged in the middle of the first buckling groove (10), positioning convex portions (7) are arranged at the bottoms of the first buckling groove (10) at the two ends of the buckling boss (8), first slots (12) penetrating through the bottom of the second insulating glue shell (2) are symmetrically arranged on the two side faces of the buckling boss (8), second slots (9) are formed in the groove wall of the first buckling groove (10), and the second slots (9) penetrate through the bottom of the second insulating glue shell (2).

2. A board-to-board connector receptacle according to claim 1, wherein: the second terminal (5) comprises a second fixing part (52) which is matched with the second slot (9) in an inserting way, one end of the second fixing part (52) is provided with a second welding part (51) extending along two sides of the second insulating rubber shell (2), the other end of the second fixing part (52) is provided with a first buckling part (53) which is bent reversely, a first buckling groove (56) is arranged on one side of the first buckling part (53) towards the first buckling groove (10), the lower end of the first buckling part (53) is bent and extended towards the direction of the first slot (12) to form a first elastic bending part (54), the right end of the first elastic bending part (54) is bent towards the inside of the first buckling groove (10) and extends to form a second elastic bending part (55), the tail end of the second elastic bending part (55) bends towards the interior of the first buckling groove (10) and extends to form a third elastic bending part (57), and the third elastic part (57) is of an arc barb structure.

3. A board-to-board connector receptacle according to claim 2, wherein: the opening width of the first buckling groove (56) is equal to the width of the second terminal (5).

4. A board-to-board connector receptacle according to claim 2, wherein: the included angle between the first elastic bending part (54) and the horizontal direction ranges from 5 degrees to 10 degrees.

5. A board-to-board connector receptacle according to claim 1, wherein: the ground slice (6) comprises a ground slice main body (63) embedded in the surface of the end part of the second insulating rubber shell (2), the two ends of the ground slice main body (63) are respectively provided with a ground slice extending part (61) which is bent vertically, the end part of the ground slice extending part (61) extends to the two sides of the second insulating rubber shell (2) to form a third welding part (62), and the middle part of the ground slice main body (63) is provided with a ground slice fixing part (60) embedded into the second insulating rubber shell (2).

6. A board-to-board connector plug, comprising: the insulation plastic shell comprises a first insulation plastic shell (1), a plurality of first terminals (3) arranged on the first insulation plastic shell (1) and fixing pieces (4) embedded in two end portions of the first insulation plastic shell (1), wherein second buckling grooves (13) are formed in the surface of the first insulation plastic shell (1), the first terminals (3) are fixedly arranged on the groove walls of the second buckling grooves (13) and are uniformly arranged, positioning grooves (11) are formed in the surfaces of the two end portions of the first insulation plastic shell (1), and the fixing pieces (4) extend out of two sides of the first insulation plastic shell (1).

7. A board-to-board connector plug according to claim 6, wherein: the first terminal (3) comprises a first fixing part (32) embedded on the inner side face of the second buckling groove (13), a second buckling part (34) bent and extending along the outer side face of the second buckling groove (13) is arranged at one end of the first fixing part (32), a welding bending part (36) extending towards the outer side of the first insulating rubber shell (1) is arranged at the other end of the first fixing part (32), a first welding part (31) is arranged on the welding bending part (36), a second buckling groove (33) is arranged on one side, towards the second buckling groove (13), of the first fixing part (32), and a first buckling protrusion (37) is arranged on the surface of the second buckling part (34).

8. A board-to-board connector plug according to claim 7, wherein: the length of the first snap projection (37) is equal to the width of the first terminal (3).

9. A board-to-board connector plug according to claim 7, wherein: and the upper end of the second buckling part (34) is provided with a fixed bent part (35) inserted into the first insulating rubber shell (1).

10. A board-to-board connector assembly, comprising: comprising a board-to-board connector socket according to any one of claims 1-5 and a board-to-board connector plug according to any one of claims 6-9, wherein the snap-fit projections (8) of the board-to-board connector socket mate with the second snap-fit grooves (13) of the board-to-board connector plug, and the second terminals (5) of the board-to-board connector socket mate with the first terminals (3) of the board-to-board connector plug.