Board-to-board connector female end

Abstract

A board-to-board connector female end comprises a female end base body, a plurality of female end terminals and a pair of female end armors installed at the two longitudinal ends of the female end base body, and each female end armor comprises a top face covering part and an elastic arm which is bent and extends reversely by 180 degrees from the longitudinal outer end of the top face covering part. The top surface covering part covers the longitudinal tail end of the female end seat body, the elastic arm is provided with a clamping part which is bent and extends downwards and is used for transversely clamping the male end of the board-to-board connector, the elastic arm is equivalent to only increase the space of one material thickness, and the occupied space of the female end armor is obviously saved; the elastic arms are stable in structure and can enhance the strength of the female end armor; as the elastic arm occupies a small space, the female end seat body does not need to reduce excessive glue for avoiding, and the plastic strength of the female end seat body is enhanced.

Description

Technical Field

[0001] The utility model relates to a board-to-board connector female end, in particular to a board-to-board connector female end with a metal armor. Background Art

[0002] In order to make more effective use of the limited product substrate space, the requirements for further thinning and miniaturization of mounted components are becoming increasingly higher, and the demand and challenges for miniature board-to-board connectors are also increasing.

[0003] The prior art related to this case can refer to patent No. CN218513740U, which discloses a female end of a board-to-board connector, which includes a longitudinally long insulating seat body, two rows of conductive terminals and a female end armor fixed to the longitudinal ends of the insulating seat body, the insulating seat body includes a bottom wall, opposite side walls, opposite end walls, a central slot and a central island, the central slot is between the bottom wall, the side walls and the end walls, the central island is located in the central slot and is spaced from each side wall and each end wall, the female end armor covers the end wall and its connection with the side wall downward, the female end armor includes a main body covering the top surface of the end wall, and a longitudinal outer end extending from the main body to the inner wall. The end wall covering portion is bent downward and extended, the side wall covering portion is bent downward and extended from the lateral outer end of the main body, and the elastic arm portion is bent inward and extended from the longitudinal inner end of the side wall covering portion, the elastic arm portion includes a tensioning portion formed by reverse bending from the free end of the side wall covering portion, an elastic main body arm extending in the longitudinal direction from the tensioning portion, and a contact protrusion protruding from the elastic main body arm toward the central slot. When the female end of the board-to-board connector and the male end of the board-to-board connector are plugged together, the contact protrusion is longitudinally squeezed by the male end armor of the male end of the board-to-board connector, and the elastic main body arm is deformed to provide interference retention force between the female end armor and the male end armor. The side wall needs to provide a thick material space for the deformation of the elastic main body arm to avoid the position, which affects the structural strength of the side wall and even the insulating seat.

[0004] Therefore, it is necessary to design a new board-to-board connector female end to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a board-to-board connector female end with improved structural strength.

[0006] To achieve the aforementioned objectives, the utility model adopts the following technical solutions: a board-to-board connector female end, used to dock with a board-to-board connector male end, comprising a female end seat body, a plurality of female end terminals accommodated in the female end seat body, and a pair of female end armors installed at the longitudinal ends of the female end seat body, the female end seat body being provided with a female end slot for inserting the male end of the board-to-board connector and a central island portion located in the female end slot, characterized in that: the female end armor comprises a top surface covering portion and an elastic arm bent 180 degrees in the opposite direction and extending from the longitudinal outer end of the top surface covering portion, the top surface covering portion covers the longitudinal end of the female end seat body, the elastic arm is located below the top surface covering portion, and is provided with a clamping portion bent downward and extending into the female end slot, for laterally clamping the male end of the board-to-board connector.

[0007] As a further improvement, the clamping portion is provided with an interference protrusion that protrudes laterally into the female end slot.

[0008] As a further improvement, the elastic arm includes a C-shaped bent portion and a horizontal portion extending in the longitudinal direction, and the bent portion is bent and extends from the top surface covering portion to the horizontal portion.

[0009] As a further improvement, the horizontal portion is a horizontal sheet, and the top surface of the female end seat is provided with an upper recess for accommodating the horizontal portion.

[0010] As a further improvement, the top surface of the female end seat is provided with a lower recess for accommodating the clamping portion, and the lower recess extends downward from the upper recess.

[0011] A further improvement is that the female end seat body includes a bottom wall, two female end side walls extending upward from the two lateral ends of the bottom wall, and two female end walls extending upward from the two longitudinal ends of the bottom wall, the upper recess is arranged on the top surface of the female end side wall, and the lower recess is arranged on the inner surface of the female end side wall.

[0012] A further improvement is that the top surface covering portion is U-shaped, comprising two longitudinal portions and a transverse portion, wherein the longitudinal portion extends inward from both transverse ends of the transverse portion, and the transverse inner end of the longitudinal portion is provided with a downwardly bent clip, wherein the clip is located in the upper recess and abuts against the inner wall of the upper recess toward the inside, so as to limit the longitudinal movement of the female end armor inward.

[0013] As a further improvement, the female end armor also includes side inserts bent downward from the lateral ends of the top surface covering portion and end inserts bent downward and extended from the longitudinal outer ends of the top surface covering portion, and the side inserts and the end inserts are plugged and fixed to the outer side surface of the female end seat body.

[0014] A further improvement is that the female end armor also includes a fixed arm that bends and extends inward from the longitudinal inner end of the top surface covering portion, and the fixed arm is U-shaped, including a first arm portion, a second arm portion longitudinally opposite to the first arm portion, and a third arm portion, the third arm portion is connected between the lower end of the first arm portion and the lower end of the second arm portion, the female end seat body is provided with a bottom wall, a female end side wall and a female end wall surrounding the female end slot, the female end wall is provided with a first recess for accommodating the first arm portion on the inner side surface exposed to the female end slot, and the bottom wall is provided with a second recess for accommodating the third arm portion on the inner side surface exposed to the female end slot.

[0015] As a further improvement, the central island portion is convex in shape, with a notch and a socket located in the notch at the longitudinal end, and the fixed arm also includes a hook portion that bends inward and downward and extends from the upper end of the second arm portion, the hook portion is accommodated in the notch, and the end is inserted downward and fixed to the socket.

[0016] The female end armor of the board-to-board connector female end of the utility model includes a top surface covering portion and an elastic arm bent 180 degrees in the reverse direction and extending from the longitudinal outer end of the top surface covering portion, wherein the top surface covering portion covers the longitudinal end of the female end seat body, and the elastic arm is located below the top surface covering portion, and is provided with a clamping portion bent downward and extended into the female end slot, so as to laterally clamp the male end of the board-to-board connector, and the elastic arm is bent 180 degrees in the reverse direction and extended from the top surface covering portion, which is equivalent to only adding a space of material thickness, thereby significantly saving the space occupied by the female end armor; the elastic arm has a stable structure and can enhance the strength of the female end armor itself; since the elastic arm occupies less space, the female end seat body does not need to reduce too much glue for avoiding position, thereby enhancing the plastic strength of the female end seat body; the elastic arm has a simple structure and can reduce the difficulty of stamping manufacturing while improving assembly stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of the female end of the board-to-board connector and the male end of the board-to-board connector being butted together.

[0018] Figure 2 It is a three-dimensional exploded view of the female end of the board-to-board connector and the male end of the board-to-board connector of the utility model.

[0019] Figure 3 A perspective view of the male end of a board-to-board connector.

[0020] Figure 4 A perspective view of the male end armor of the male end of the board-to-board connector.

[0021] Figure 5 for Figure 4 Another angle of view.

[0022] Figure 6It is a three-dimensional diagram of the female end of the board-to-board connector of the present invention.

[0023] Figure 7 It is a three-dimensional diagram of the female end armor of the female end of the board-to-board connector of the present invention.

[0024] Figure 8 for Figure 7 Another angle of view. DETAILED DESCRIPTION

[0025] See also Figure 1 to Figure 2 As shown, the utility model discloses a board-to-board connector female end 200 that can be docked with a board-to-board connector male end 100. The board-to-board connector male end 100 includes a longitudinally elongated male end seat body 10, two rows of male end terminals 20 arranged on the male end seat body 10, and a pair of male end armors 30 fixed at the longitudinal ends of the male end seat body 10; the board-to-board connector female end 200 includes a longitudinally elongated female end seat body 40, two rows of female end terminals 50 arranged on the female end seat body 40, and a pair of female end armors 60 fixed at the longitudinal ends of the female end seat body 40.

[0026] See also Figures 3 to 5 As shown, the male end seat body 10 includes a top wall 11, two male end side walls 12 and two male end walls 13 extending downward from the outer periphery of the top wall 11, and a male end slot. The male end side wall 11 extends longitudinally and is connected end to end with the male end wall 13. The male end slot is located between the top wall 11, the two male end side walls 12 and the male end wall 13.

[0027] The male terminal 20 includes a contact portion 21 located in the male slot and a welding foot 22 extending out of the male base 10. The contact portion 21 and the welding foot 22 are arranged in two rows along the longitudinal direction of the male base 10, and the welding foot 22 extends out of the male side wall 12 along the transverse direction of the male base 10 for welding on the surface of the circuit board.

[0028] The male end armor 30 is assembled upwardly on the male end seat 10 and wrapped around the male end wall 13 and the connection between the male end wall 12 and the male end side wall 12. The male end armor 30 includes a bottom covering wall 31, side covering walls 32 extending upwardly from two opposite lateral outer ends of the bottom covering wall 31, and an end covering wall 33 extending upwardly from the longitudinal outer end of the bottom plate 31. The bottom covering wall 31 covers the male end wall 13 and the bottom surface of the connection between the male end side wall 12 and the male end side wall 12, the side covering wall 32 is fixed on the outer surface of the male end side wall 12, and the end covering wall 33 is fixed on the outer surface of the male end wall 13. The male end side wall 12 and the male end wall 13 are respectively provided with grooves 120 and 130 for accommodating the side covering wall 32 and the end covering wall 33. In this way, after the male end armor 30 is assembled with the male end seat 10, the size of the board-to-board connector male end 100 will not be increased. The grooves 120 and 130 pass through the corresponding male end side wall 12 and male end wall 13 from top to bottom. The male end armor 30 is also provided with a welding portion 34 extending outward from the upper end of the side covering wall 32 for welding on the surface of the circuit board.

[0029] See also Figure 2 and Figures 6 to 8 As shown, the female end seat body 40 includes a bottom wall 41, two female end side walls 42 extending upward from the two ends of the bottom wall 41 in the horizontal direction, two female end walls 43 extending upward from the two ends of the bottom wall 41 in the longitudinal direction, and a female end slot 44 between the bottom wall 41, the two female end side walls 42 and the two female end walls 43. The female end side walls 42 and the female end walls 43 are connected end to end, and the outer sides of the female end side walls 42 and the female end walls 43 are provided with recesses 420 and 430, and the recesses 420 and 430 pass through the corresponding female end side walls 42 and female end walls 42 from top to bottom. The female end seat body 40 is also provided with a central island portion 45 located in the female end slot 44, and the central island portion 45 is spaced from the female end side walls 42 and the female end walls 43, and extends longitudinally. The longitudinal ends of the central island portion 45 are respectively provided with a notch 451 and a plug hole 452 located in the notch 451. Due to the existence of the notch 451, the central island portion 45 is in a convex shape.

[0030] The male terminal 50 includes a contact portion 51 located in the female slot 44 and a welding foot 52 extending out of the female seat body 40. The contact portion 51 and the welding foot 52 are arranged in two rows along the longitudinal direction of the female seat body 40, and the welding foot 52 extends out of the female side wall 42 along the transverse direction of the female seat body 40 for welding on the surface of the circuit board.

[0031] The female end armor 60 includes a U-shaped top surface covering portion 61, side plugs 62 bent downward from the two lateral ends of the top surface covering portion 61, an end plug 63 bent downward and extended from the longitudinal outer end of the top surface covering portion 61, a fixed arm 64 bent inwardly from the longitudinal inner end of the top surface covering portion 61, and an elastic arm 65 bent downwardly and inwardly and extended 180 degrees from the longitudinal outer end of the top surface covering portion 61.

[0032] The top surface covering portion 61 covers the top surface of the female end side wall 42 and its connection with the female end wall 42, and includes two transversely opposite longitudinal portions 611 and a transversely extending transverse portion 612. The two longitudinal portions 611 extend inward from the transverse ends of the transverse portion 612, and the transverse inner end of the longitudinal portion 611 is provided with a downwardly bent and extended clamping foot 613.

[0033] The side insert 62 is inserted downwardly and fixed in the recess 420 of the corresponding female end side wall 42, which will not increase the lateral width of the female end 200 of the board-to-board connector. The end insert 63 is inserted downwardly and fixed in the recess 430 of the corresponding female end wall 43, which will not increase the longitudinal width of the female end 200 of the board-to-board connector.

[0034] The fixed arm 64 is U-shaped, and includes a first arm portion 641, a second arm portion 642 longitudinally opposite to the first arm portion 641, a third arm portion 643, and a hook portion 644 bent inwardly and downwardly from the upper end of the second arm portion 642. The first arm portion 641 is in the shape of an upright wall, and is bent downwardly from the longitudinal inner end of the top surface covering portion 61 to extend to the third arm portion 643. The third arm portion 643 is connected between the lower end of the first arm portion 641 and the lower end of the second arm portion 642. The female end wall 43 is provided with a first recess 431 on the inner side surface exposed to the female end slot 44 to accommodate the first arm portion 641, and the bottom wall 41 is provided with a second recess 411 on the inner side surface exposed to the female end slot 44 to accommodate the corresponding third arm portion 643. Through the first recess 431 and the second recess 411, the first arm portion 641 and the third arm portion 643 will not affect the size of the female end slot 44. The hook portion 644 is received in the notch 451 of the female end seat body 40 , and the end is inserted downwardly and fixed in the insertion hole 452 .

[0035] The elastic arm 65 includes a C-shaped bending portion 651, a horizontal portion 652 extending longitudinally, and a clamping portion 653 extending downwardly from the end of the horizontal portion 652 or near the end. The two bending portions 651 are located on both sides of the end plug 63 in the horizontal direction and are spaced apart. Each bending portion 651 is bent and extends from the top surface covering portion 61 to the horizontal portion 652. The horizontal portion 652 is a horizontal sheet, located below the top surface covering portion 61, and parallel to each other. The clamping portion 653 is provided with an interference protrusion 654 that protrudes laterally into the female end slot 44.

[0036] Furthermore, an upper recess 422 for accommodating a bent portion 651 and a horizontal portion 652 of the elastic arm 65 is recessed on the top surface of the female end side wall 42 of the female end seat body 40, and a lower recess 423 extending downward from the upper recess 425 is provided on the inner wall surface of the female end side wall 42, and the clamping portion 653 is received in the lower recess 423 and can swing laterally, and the clamping foot 613 of the top surface covering portion 61 is located in the upper recess 422 and abuts against the inner wall of the upper recess 422 toward the inside, so as to limit the inner longitudinal movement of the female end armor 60.

[0037] When the board-to-board connector male end 100 and the board-to-board connector female end 200 are docked together, the male end seat body 10 and the male end armor 30 of the board-to-board connector male end 100 are inserted into the female end slot 44 of the female end seat body 40 of the board-to-board connector female end 200, the central island portion 45 of the female end seat body 40 is inserted into the male end slot, the contact portion 21 of the male terminal 20 and the contact portion 51 of the female terminal 50 are elastically contacted one by one, the male end armor 30 and the female end armor 60 are in contact together, and the female end armor 60 expands outward through the clamping portion 653 to laterally clamp the male end armor 30, thereby increasing the holding force of the board-to-board connector male end 100 and the board-to-board connector female end 200.

[0038] The elastic arm 65 of the female end armor 60 is bent 180 degrees from the top surface covering portion 61 and extends in the reverse direction, and is closely attached to the upper surface of the female end seat body 40. Such a design is equivalent to adding only a space of material thickness, which significantly saves the space occupied by the female end armor 60. When the board-to-board connector male end 100 and the board-to-board connector female end 200 are docked, the clamping portion 653 applies a reverse clamping force in the lateral direction to achieve stable clamping of the board-to-board connector male end 100. In addition, the elastic arm 65 has a stable structure and can enhance the strength of the female end armor 60 itself; because the elastic arm 65 occupies less space, the female end seat body 40 does not need to reduce too much glue to avoid the position, which enhances the plastic strength of the female end seat body 40; the elastic arm 65 has a simple structure and can reduce the difficulty of stamping manufacturing while improving assembly stability.

[0039] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. A female end of a board-to-board connector, used for docking with a male end of a board-to-board connector, comprising a female end seat, a plurality of female end terminals received in the female end seat, and a pair of female end armors installed at both longitudinal ends of the female end seat, wherein the female end seat is provided with a female end slot for inserting the male end of the board-to-board connector and a central island portion located in the female end slot, Features: The female end armor includes a top surface covering portion and an elastic arm that is bent 180 degrees in the opposite direction and extends from the longitudinal outer end of the top surface covering portion. The top surface covering portion covers the longitudinal end of the female end seat body. The elastic arm is located below the top surface covering portion and is provided with a clamping portion that is bent downward and extends into the female end slot for transversely clamping the male end of the board-to-board connector.

2. The board-to-board connector female end according to claim 1, Features: The clamping portion is provided with an interference protrusion which protrudes laterally into the female end slot.

3. The board-to-board connector female end according to claim 1, Features: The elastic arm includes a C-shaped bending portion and a horizontal portion extending in the longitudinal direction, and the bending portion is bent and extends from the top surface covering portion to the horizontal portion.

4. The board-to-board connector female end according to claim 3, Features: The horizontal portion is a horizontal sheet, and the top surface of the female end seat body is provided with an upper recess for accommodating the horizontal portion.

5. The board-to-board connector female end according to claim 4, Features: The top surface of the female end seat body is provided with a lower recess for accommodating the clamping portion, and the lower recess extends downward from the upper recess.

6. The board-to-board connector female end according to claim 5, Features: The female end seat body includes a bottom wall, two female end side walls extending upward from the two lateral ends of the bottom wall, and two female end walls extending upward from the two longitudinal ends of the bottom wall. The upper recess is arranged on the top surface of the female end side wall, and the lower recess is arranged on the inner surface of the female end side wall.

7. The board-to-board connector female end according to claim 4, Features: The top surface covering portion is U-shaped, and includes two longitudinal portions and a transverse portion. The longitudinal portion extends inward from both transverse ends of the transverse portion. The transverse inner end of the longitudinal portion is provided with a downwardly bent clamping foot. The clamping foot is located in the upper recess and abuts against the inner wall of the upper recess toward the inside to limit the longitudinal movement of the female end armor inward.

8. The board-to-board connector female end according to claim 1, Features: The female end armor also includes side plugs bent downward from the lateral ends of the top surface covering portion and end plugs bent downward and extended from the longitudinal outer ends of the top surface covering portion. The side plugs and the end plugs are plugged and fixed to the outer side surface of the female end seat body.

9. The board-to-board connector female end according to claim 1, Features: The female end armor also includes a fixed arm that bends and extends inward from the longitudinal inner end of the top surface covering portion, and the fixed arm is U-shaped, including a first arm portion, a second arm portion longitudinally opposite to the first arm portion, and a third arm portion, and the third arm portion is connected between the lower end of the first arm portion and the lower end of the second arm portion. The female end seat body is provided with a bottom wall, a female end side wall and a female end wall surrounding the female end slot, and the female end end wall is provided with a first recess for accommodating the first arm portion on the inner side surface exposed to the female end slot, and the bottom wall is provided with a second recess for accommodating the third arm portion on the inner side surface exposed to the female end slot.

10. The board-to-board connector female end according to claim 9, Features: The central island portion is convex in shape, with a notch and a socket located in the notch at the longitudinal end. The fixed arm also includes a hook portion that bends inward and downward from the upper end of the second arm portion, the hook portion is accommodated in the notch, and the end is inserted downward and fixed in the socket.

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