CN114883862A - Board-to-board connector and disassembling jig - Google Patents

Abstract

The invention discloses a board-to-board connector and a dismantling fixture. The board-to-board connector includes an electrical connector and a butt connector that cooperate with each other, and the electrical connector includes an insulating body and a conductive conductor fixed on the insulating body. The terminal, the insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls, the two side walls and the two end walls are surrounded to form slots; the butt connector includes an insulator and a transverse depressions on both sides. The electrical connector includes a self-locking part, the self-locking part is provided with a fixing part fixed on the insulating body, an extension part extending upward from the fixing part, and a locking part located at the free end of the extending part, the locking part extends into the slot. When the electrical connector is mated with the butt connector, the insulator is accommodated in the slot, and the locking part of the self-locking part is fastened in the recessed part of the insulator; the self-locking part makes the board-to-board connector It realizes the self-locking function and cannot be separated without removing the fixture.

Description

Board-to-board connectors and removal fixtures

technical field

The invention relates to a board-to-board connector and a dismounting fixture, in particular to a board-to-board connector and a dismounting fixture with a self-locking function.

Background technique

Board to Board Connector (BTB for short) is a kind of connector often used in electronic devices (such as mobile phones, tablet computers, etc.) Mechanical and electrical interconnection between groups, touch modules, camera modules, etc.). The board-to-board connector includes a plug connector and a socket connector that cooperate with each other, and both the plug connector and the socket connector include an insulating body extending along the longitudinal direction, a conductive terminal fixed on the insulating body, and two longitudinal ends of the insulating body. end of the protective bracket. The protective bracket is used to enhance the strength of each electrical connector, and at the same time, the plug connector and the socket connector realize stable cooperation between the electrical connectors through the engagement between the protective brackets. However, with the application of board-to-board connectors in more and more fields, the latching between the protective brackets in the existing board-to-board connectors can no longer ensure a good fit between the plug connector and the socket connector , so that the problem of unreliable and loose mating between the plug connector and the socket connector is easy to occur.

Therefore, it is hoped to propose a new board-to-board connector and disassembly jig to overcome the above-mentioned defects.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a board-to-board connector and a dismounting jig with a self-locking piece, the self-locking piece enables the board-to-board connector to achieve a self-locking function and cannot be separated without a special dismounting fixture.

In order to achieve the above purpose, the present invention adopts the following technical scheme: a board-to-board connector, comprising an electrical connector and a butt connector that cooperate with each other, the electrical connector comprises an insulating body extending along the longitudinal direction, and is fixed on the insulating body. The conductive terminals on the body and the protective brackets located at the longitudinal ends of the insulating body, the insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls. The wall and the two end walls surround and form a slot; the butt connector includes an insulator extending in the longitudinal direction and recesses located on both lateral sides of the insulator. The electrical connector includes a self-locking part adjacent to the protective bracket, the self-locking part is provided with a fixing part fixed on the insulating body, an extension part extending upward from the fixing part, and a part located in the extension part The locking portion at the free end of the connector extends into the slot; when the electrical connector is mated with the butt connector, the insulator is accommodated in the slot, and the self The locking portion of the lock is fastened in the recessed portion of the insulator.

In a preferred embodiment, the self-locking member is a one-piece structure, the fixing portion extends laterally and is fixed on the bottom wall of the insulating body located below the slot, and the extending portion extends from the Two lateral ends of the fixing portion are formed to extend vertically upward, and the locking portion is formed by bending inward in the lateral direction from the top end of the extending portion and extending obliquely downward.

In a preferred embodiment, the self-locking member is a separate two-piece structure, the fixing portion is fixed on the side wall, and the extending portion extends vertically upward from the lateral inner side of the fixing portion. , the locking portion is formed by bending inward in the lateral direction from the top end of the extending portion and extending downwardly obliquely.

In a preferred embodiment, the protection bracket is fixed on the end wall and includes an end wall reinforcing sheet covering the end wall and a side wall reinforcing sheet at least partially covering the side wall, the The side wall reinforcing sheet is connected to the lateral ends of the end wall reinforcing sheet and is provided with a side wall top plate portion covering the top surface of the side wall, and the side wall top plate portion is located above the locking portion.

In a preferred embodiment, the insulating body is provided with an accommodating groove located on the lateral inner side of the side wall and communicated with the slot, and the extension portion of the self-locking member is accommodated in the accommodating groove, The side wall top plate portion is provided with an inclined portion extending downward from the lateral inner side, and the inclined portion covers the upper portion of the accommodating groove and abuts against the locking portion.

In a preferred embodiment, the end wall reinforcing sheet is provided with an end wall top plate part covering the top surface of the end wall, and an end wall side bent downward from the longitudinal outer side of the end wall top plate part a plate part and an elastic arm extending from the lateral ends of the end wall side plate part along the inner wall surface of the side wall, the elastic arm is located below the side wall top plate part, and the extension part is located in the side wall The longitudinal inner side of the elastic arm.

In a preferred embodiment, the insulator is provided with two side portions extending in the longitudinal direction and two end portions connected to the two side portions, and the recessed portion is provided adjacent to the end portions and from the side portions The lateral outer surface of the part is recessed inwardly.

In a preferred embodiment, the docking connector includes a docking bracket fixed on the end portion, and the docking bracket is provided with an end top plate portion covering the top surface of the end portion and a docking bracket from the end portion. The lateral outer side of the top plate portion is an end portion side plate portion that is bent downward and extends downward, the end portion side plate portion is at least partially shielded from the lateral side surface of the end portion and is provided with a notch corresponding to the recessed portion.

In order to achieve the above object, the present invention adopts the following technical solutions: a disassembly jig suitable for the above-mentioned board-to-board connector, and the disassembly jig is used to separate the butt connector from the electrical connector. The recessed portion penetrates through the bottom surface of the insulator vertically, the dismantling jig is provided with a main body portion and a plurality of pushing portions extending vertically from the main body portion; the electrical connector is connected to the butt joint When the device is separated, the pushing portion protrudes into the recess portion from the bottom surface of the insulator and pushes the locking portion to move laterally outward.

In a preferred embodiment, the board-to-board connector includes a second circuit board extending in the longitudinal direction, the butt connector is mounted on the upper surface of the second circuit board, and the second circuit board is provided with an edge a plurality of through holes vertically penetrating the upper and lower surfaces of the second circuit board, the through holes are disposed corresponding to the recessed portion; when the electrical connector is separated from the butt connector, the pushing portion Passing through the through hole of the second circuit board and extending into the recess from the bottom surface of the insulator, at this time, the pushing portion pushes the locking portion to move laterally outward until the The locking portion is disengaged from the recessed portion.

Compared with the prior art, the present invention has the following beneficial effects: the electrical connector includes a self-locking part adjacent to the protective bracket, the self-locking part is provided with a fixing part fixed on the insulating body, and a self-locking part extending upward from the fixing part is provided. The extension part and the lock part located at the free end of the extension part, the lock part extends into the slot. When the electrical connector is mated with the butt connector, the insulator is accommodated in the slot, and the locking part of the self-locking member is fastened in the recess of the insulator, so that the butt connector can be disassembled without special purpose. It is difficult to separate from the electrical connector when jig. The arrangement of the self-locking member enables the board-to-board connector to realize the self-locking function; at the same time, when there is no special disassembly jig, the electrical connector and the docking connector cannot be separated, thereby avoiding the board-to-board connector. The problem of being disassembled during misuse.

Description of drawings

FIG. 1 is a three-dimensional schematic diagram of an electrical connector in a preferred embodiment of the present invention.

FIG. 2 is an exploded schematic view of the electrical connector shown in FIG. 1 .

FIG. 3 is a top view of the electrical connector shown in FIG. 1 .

FIG. 4 is a perspective view of the protective bracket in the electrical connector shown in FIG. 2 .

FIG. 5 is a cross-sectional view of the electrical connector shown in FIG. 3 .

6 is a cross-sectional view of an electrical connector in another embodiment of the present invention.

FIG. 7 is a perspective view of a butt connector in a preferred embodiment of the present invention.

FIG. 8 is an exploded schematic view of the docking connector shown in FIG. 7 .

Fig. 9 is a three-dimensional schematic diagram of a disassembly jig in a preferred embodiment of the present invention.

10 is a cross-sectional view of a board-to-board connector in a preferred embodiment of the present invention.

Detailed ways

Referring to FIG. 1 to FIG. 10 , a preferred embodiment of the present invention discloses a board-to-board connector, which includes an electrical connector 100 and a mating connector 200 that are mated with each other. The electrical connector 100 is mounted on the first circuit board 401 and includes an insulating body 10 extending along the longitudinal direction, conductive terminals 20 fixed on the insulating body 10 , protective brackets 30 located at both longitudinal ends of the insulating body 10 and adjacent to the protective bracket. 30 of the self-locking member 60. The insulating body 10 is provided with a central island portion 11 extending along the longitudinal direction, two side walls 12 located on both lateral sides of the island portion 11 , and two end walls 13 connected to the two side walls 12 . The island portion 11 , the two side walls 12 and the two end walls 13 together define a slot 14 , that is, the island portion 11 is located in the slot 14 , and the slot 14 can be inserted into the mating connector 200 .

Referring to FIGS. 2 to 4 , the protective bracket 30 is assembled and fixed on the end wall 13 of the insulating body 10 from top to bottom, so as to enhance the overall strength of the electrical connector 100 . The protection bracket 30 includes an island reinforcement piece 31 covering at least part of the island 11 , an end wall reinforcement piece 40 covering the end wall 13 , and a side wall reinforcement piece 50 covering at least part of the side wall 12 . The island portion reinforcing sheet 31 covers the longitudinal ends of the island portion 11 and extends out of the insulating body 10 in the longitudinal direction; the side wall reinforcing sheet 50 is connected to the lateral ends of the end wall reinforcing sheet 40, thereby improving the electrical power. The strength of the connector 100 itself.

The end wall reinforcing sheet 40 is provided with an end wall top plate portion 41 covering the top surface of the end wall 13 , an end wall inner plate portion 42 bent downward from the longitudinal inner side of the end wall top plate portion 41 , and an end wall top plate portion 42 . The end wall side plate portion 43 bent downward from the longitudinal outer side of the portion 41, the elastic arms 44 extending from the lateral ends of the end wall side plate portion 43 along the inner wall surface of the side wall 12, and the end wall side plate portion 43. Welding feet 45 extending downward from the bottom edge. The end wall inner plate portion 42 covers the inner wall surface of the end wall 13 , and the end wall side plate portion 43 covers the outer wall surface of the end wall 13 to enhance the strength of the end wall 13 of the insulating body 10 . The end wall side plate portion 43 does not exceed the outer wall surface of the end wall 13 , that is, the end wall side plate portion 43 does not increase the overall volume of the electrical connector 100 while enhancing the strength of the end wall 13 of the insulating body 10 . .

The end wall 13 is provided with a slot 17 extending longitudinally through the end wall 13 and communicating with the slot 14 . The elastic arm 44 passes through the slot 17 from the outer side of the end wall 13 and extends into the slot 14 . The elastic arm 44 extends longitudinally in the side wall region, and a gap is formed between the elastic arm 44 and the inner wall surface of the side wall 12 . Specifically, the side wall 12 is provided with an escape groove 15 recessed inward from the inner wall thereof, the escape groove 15 is communicated with the slot 14 , and the elastic arm 44 is accommodated in the escape groove 15 for the purpose of When elastically deforming the elastic arm 44, there is sufficient movement space. The elastic arm 44 is provided with a protruding portion 441 protruding into the slot 14, whereby the elastic arm 44 of the protection bracket 30 has a longer force arm, which can ensure the stable assembly of the electrical connector 100 and solve the problem of It solves the problem that the elastic arm can overcome a large problem after the electrical connector 100 is plugged and unplugged, so that the contact of the electrical connector 100 in use is stable and reliable.

The side wall reinforcing sheet 50 is provided with a side wall top plate portion 51 at least partially covering the top surface of the side wall 12 and a side wall side plate portion 52 bent downward from the lateral outer side of the side wall top plate portion 51 . The side wall side plate portion 52 at least partially covers the outer wall surface of the side wall 12 . The side wall top plate portion 51 is connected to the lateral ends of the end wall top plate portion 41 , so that the side wall reinforcing sheet 50 and the end wall reinforcing sheet 40 are formed as a whole. The side wall top plate portion 51 is located above the elastic arm 44 so as to protect the elastic arm 44 . In the present embodiment, the side wall top plate portion 51 is provided with an inclined portion 53 extending downward from the lateral inner side. The insertion of the docking connector 200 is described.

The side wall side plate portion 52 does not exceed the outer wall surface of the side wall 12 , that is, the side wall side plate portion 52 does not increase the overall volume of the electrical connector 100 while enhancing the strength of the side wall 12 of the insulating body 10 . . The insulating body 10 is provided with a locking groove 16 located on the outer surface of the side wall 12 , and the side wall side plate 52 is accommodated in the locking groove 16 to enhance the stability of the protection bracket 30 being fixed to the insulating body 10 . .

Referring to FIG. 5 , the self-locking member 60 is disposed adjacent to the protective bracket 30 and has a fixing portion 61 fixed to the insulating body 10 , an extending portion 62 extending upward from the fixing portion 61 , and a free end located at the extending portion 62 . The locking portion 63 extends into the slot 14 . Specifically, the self-locking member 60 has a one-piece structure, and the fixing portion 61 extends laterally and is fixed on the bottom wall of the insulating body 10 below the slot 14 , that is, the fixing portion 61 is fixed on the bottom wall of the island portion 11 . bottom.

The extending portion 62 is formed to extend vertically upward from the lateral ends of the fixing portion 61 , and the extending portion 62 is located at the longitudinal inner side of the elastic arm 44 . Meanwhile, the insulating body 10 is provided with an accommodating groove 18 located on the lateral inner side of the side wall 12 and communicated with the slot 14 , the extending portion 62 is accommodated in the accommodating groove 18 , and the inclined portion 53 covers the accommodating groove 18 above. Further, the locking portion 63 is formed by bending inward in the lateral direction from the top end of the extending portion 62 and extending obliquely downward. The side wall top plate portion 51 is located above the locking portion 63 , and the inclined portion 53 abuts against the locking portion 63 , so that the self-locking member 60 is not pulled out under external force. Therefore, the arrangement of the self-locking member 60 enables the board-to-board connector to realize the self-locking function.

Please refer to FIG. 6 , which is a cross-sectional view of an electrical connector according to another embodiment of the present invention. In this embodiment, the self-locking member is a separate two-piece structure, the fixing portion 61 ′ is fixed on the side wall 12 , and the extending portion 62 extends vertically upward from the lateral inner side of the fixing portion 61 ′. , the locking portion 63 is formed by bending inward from the top end of the extending portion 62 in the lateral direction and extending downwardly obliquely. The self-locking member of the two-piece structure has the same function as the self-locking member 60 of the above-mentioned one-piece structure, that is, the board-to-board connector can realize the self-locking function.

Referring to FIGS. 7 to 8 , the mating connector 200 is mounted on the second circuit board 402 and includes an insulator 70 extending along the longitudinal direction, mating terminals 80 fixed on the insulator 70 , and mating terminals at both longitudinal ends of the insulator 70 Bracket 90. The insulator 70 is provided with two sides 71 extending in the longitudinal direction and two ends 72 connected to the two sides 71 . The two side portions 71 and the two end portions 72 together define an accommodating cavity 73 , and the accommodating cavity 73 can be inserted into the island portion 11 of the power supply connector 100 . The insulator 70 is provided with concave portions 74 on both lateral sides thereof, the concave portions 74 are disposed adjacent to the end portion 72 and are recessed inward from the lateral outer side of the side portion 71 , and are used for the self-locking member 60 of the power supply connector 100 . , so as to realize the self-locking function of the board-to-board connector.

The docking bracket 90 is fixed on the end portion 72 and is provided with an end portion top plate portion 91 covering the top surface of the end portion 72 , and an end portion side plate portion bent downward from the lateral outer side of the end portion top plate portion 91 and extending downward. 92 and an end portion end plate portion 93 that is bent downward from the longitudinal outer side of the end portion top plate portion 91, the end portion side plate portion 92 is shielded from the side surface of the end portion 72, and the end portion end plate portion 93 is shielded Covering the end face of the end portion 72 to enhance the strength of the insulator 70 . The end side plate portion 92 is provided with a notch 921 corresponding to the recessed portion 74 , so as to facilitate the locking of the self-locking member 60 .

When the electrical connector 100 is mated with the docking connector 200 , the insulator 70 is accommodated in the slot 14 of the insulator body 10 , and the locking portion 63 of the self-locking member 60 is pushed by the docking bracket 90 to move laterally. Move outward until the electrical connector 100 is completely plugged into the docking connector 200, the locking portion 63 is locked in the recessed portion 74 of the insulator 70, so that the docking connector 200 can be removed without special disassembly procedures. It is difficult to separate from the electrical connector 100 when the tool is used.

Please refer to FIG. 9 to FIG. 10 , the disassembly jig 300 is specially used for separating the electrical connector 100 from the mating connector 200 , and the disassembly jig 300 is provided with a main body portion 301 for holding and a main body portion 301 . Several pushing portions 302 extending vertically and the holding arms 303 located at both ends of the main body portion 301 in the longitudinal direction are disposed corresponding to the recessed portions 74 of the insulator 70 . In this embodiment, the recessed portion 74 vertically penetrates the bottom surface of the insulator 70 , and the second circuit board 402 has a through hole 403 corresponding to the recessed portion 74 . When the electrical connector 100 is separated from the mating connector 200 , the pushing portion 302 of the dismounting fixture 300 passes through the through hole 403 of the second circuit board 402 and protrudes into the concave portion 74 from the bottom surface of the insulator 70 . At this time, the pushing portion 302 pushes against the locking portion 63 and moves outward in the lateral direction until the locking portion 63 is disengaged from the recessed portion 74 . At the same time, the holding arm 303 of the dismounting fixture 300 fastens the second circuit board 402 having the docking connector 200 to separate the docking connector 200 from the electrical connector 100 .

In the present invention, the electrical connector 100 includes a self-locking member 60 adjacent to the protective bracket 30 . The self-locking member 60 is provided with a fixing portion 61 fixed to the insulating body 10 , and an extending portion 62 extending upward from the fixing portion 61 . and a locking portion 63 located at the free end of the extension portion 62 , and the locking portion 63 extends into the slot 14 . When the electrical connector 100 is mated with the mating connector 200, the insulator 70 is accommodated in the slot 14, and the locking portion 63 of the self-locking member 60 is fastened in the concave portion 74 of the insulator 70, so that the The docking connector 200 is difficult to be separated from the electrical connector 100 without a special disassembly jig. The arrangement of the self-locking member 60 enables the board-to-board connector to realize the self-locking function; at the same time, the electrical connector 100 and the docking connector 200 cannot be separated without a special disassembly jig, thereby avoiding the need for board-to-board connectors. The problem of the board connector being disassembled by mishandling.

To sum up, the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention. It still belongs to the scope covered by the patent of the present invention.

Claims (10)

1. A board-to-board connector, comprising an electrical connector and a butt connector that cooperate with each other, the electrical connector comprises an insulating body extending longitudinally, a conductive terminal fixed on the insulating body, and a conductive terminal located on the insulating body. Protective brackets at both ends of the body in the longitudinal direction, the insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls, and the two side walls and the two end walls are surrounded by A slot is formed; the butt connector includes an insulator extending in the longitudinal direction and recesses located on both lateral sides of the insulator; it is characterized in that: the electrical connector includes a self-locking part adjacent to the protective bracket, so The self-locking element is provided with a fixing portion fixed on the insulating body, an extension portion extending upward from the fixing portion, and a locking portion located at the free end of the extending portion, the locking portion extending into the insertion portion slot; when the electrical connector is mated with the butt connector, the insulator is accommodated in the slot, and the locking portion of the self-locking member is fastened to the recess of the insulator within the department. 2 . The board-to-board connector as claimed in claim 1 , wherein the self-locking member has a one-piece structure, and the fixing portion extends laterally and is fixed to the insulating body below the slot. 3 . On the bottom wall of the extending portion, the extending portion extends vertically upward from the two lateral ends of the fixing portion, and the locking portion is bent inward in the lateral direction from the top end of the extending portion and extends downwardly obliquely. 3 . The board-to-board connector of claim 1 , wherein the self-locking member is a separate two-piece structure, the fixing portion is fixed on the side wall, and the extending portion is separated from the side wall. 4 . The lateral inner side of the fixing portion is formed to extend vertically upward, and the locking portion is formed by bending inward in the lateral direction from the top end of the extending portion and extending downward obliquely. 4 . The board-to-board connector of claim 1 , wherein the protective bracket is fixed on the end wall and comprises an end wall reinforcing sheet covering the end wall and at least partially covering the end wall. 5 . The side wall reinforcement sheet of the side wall is connected to the lateral ends of the end wall reinforcement sheet and is provided with a side wall top plate part covering the top surface of the side wall, the side wall reinforcement sheet is The top wall portion is located above the locking portion. 5 . The board-to-board connector according to claim 4 , wherein the insulating body is provided with a receiving groove located on the lateral inner side of the side wall and communicated with the slot, and the self-locking member has an accommodating groove. 6 . The extension portion is accommodated in the accommodating groove, the side wall top plate portion is provided with an inclined portion extending downward from the lateral inner side, and the inclined portion covers the top of the accommodating groove and abuts against the lock Buckle. 6 . The board-to-board connector of claim 4 , wherein the end wall reinforcing sheet is provided with an end wall top plate portion covering the top surface of the end wall, and the end wall top plate portion is formed from the end wall top plate portion. 7 . The longitudinal outer side of the end wall is bent and extended downward, and the elastic arm extends from the lateral ends of the end wall side plate along the inner wall surface of the side wall, and the elastic arm is located on the top plate of the side wall. and the extending portion is located at the longitudinal inner side of the elastic arm. 7 . The board-to-board connector of claim 1 , wherein the insulator is provided with two side parts extending in the longitudinal direction and two end parts connected to the two side parts, and the recessed A portion is disposed adjacent to the end portion and is recessed inwardly from the laterally outer surface of the side portion. 8 . The board-to-board connector of claim 7 , wherein the docking connector comprises a docking bracket fixed on the end, and the docking bracket is provided with a docking bracket covering the end. 9 . The end top plate portion of the top surface and the end portion side plate portion that is bent and extended downward from the lateral outer side of the end top plate portion, the end portion side plate portion is at least partially shielded from the lateral side surface of the end portion and provided with There are notches corresponding to the recesses. 9. A disassembly jig, suitable for the board-to-board connector according to any one of the preceding claims 1 to 8, the disassembly jig is used to separate the butt connector from the electrical connector ;characterized in that: the recessed portion penetrates the bottom surface of the insulator vertically, the dismantling fixture is provided with a main body portion and a plurality of pushing portions extending vertically from the main body portion; the electrical connector When being separated from the butt connector, the pushing portion protrudes into the recess portion from the bottom surface of the insulator and pushes the locking portion to move laterally outward. 10 . The dismantling jig according to claim 9 , wherein the board-to-board connector comprises a second circuit board extending in the longitudinal direction, and the butt connector is mounted on the upper surface of the second circuit board. 11 . , the second circuit board is provided with several through holes vertically penetrating the upper and lower surfaces of the second circuit board, and the through holes are arranged corresponding to the recesses; When the connector is separated, the pushing portion passes through the through hole of the second circuit board and protrudes into the concave portion from the bottom surface of the insulator, and at this time, the pushing portion pushes the locking buckle The portion moves outward in the lateral direction until the locking portion is disengaged from the recessed portion.

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