Board-to-board connector

Abstract

The utility model discloses a board-to-board connector. The board-to-board connector comprises a socket connector and a plug connector, the socket connector comprises a socket body and a socket protection support located on the socket body, the socket body is provided with a central island part, two side parts located on the two transverse sides of the island part and two end parts connected with the two side parts, the socket protection support comprises end part protection supports fixedly held at the end parts, and the end part protection supports are provided with socket inner shielding parts drawn downwards. The plug connector comprises a plug body and a plug protection support located on the plug body. The plug body is provided with two side walls and two end walls connected with the two side walls. The plug protection support is provided with a plug outer shielding part which is drawn upwards and a plug inner shielding part which is drawn downwards from the plug outer shielding part. The plug outer shielding part and the plug inner shielding part respectively cover the outer wall surface and the inner wall surface of the side wall and the end wall. The socket protection support and the plug protection support both employ a full-drawing type structure, the overall strength is high, deformation is not liable to occur during staggered buckling, and thus the risk of short circuit is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of board-to-board connectors, in particular to a board-to-board connector with high overall strength. Background Art

[0002] Electrical connectors make electrical connections and transmit signals between devices, components, and systems, and are essential basic components for forming a complete system. Currently, electrical connectors are widely used in various electronic products. Board-to-board connectors (BTB) are used to electrically connect two parallel circuit boards, and usually include plug connectors and socket connectors that cooperate with each other. Plug connectors and socket connectors usually include an insulating body, conductive terminals fixed on the insulating body, and metal protective brackets located at both longitudinal ends of the insulating body; however, the above-mentioned metal protective brackets are mostly formed by punching, bending, and partially drawing metal parts. This type of metal protective bracket has the problems of poor product strength and poor resistance to dislocation and deformation.

[0003] Therefore, it is hoped to provide a new board-to-board connector to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a board-to-board connector, whose protective bracket adopts a fully withdrawable structure, has high overall strength, and is not easily deformed when misaligned and fastened, thereby preventing the risk of short circuit.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a board-to-board connector, comprising a socket connector and a plug connector that cooperate with each other; the socket connector comprises a socket body, a socket terminal fixed on the socket body, and a socket protection bracket located at both longitudinal ends of the socket body, the socket body is provided with a central island portion extending in the longitudinal direction, two side portions located on both lateral sides of the island portion, and two end portions connected to the two side portions, the socket protection bracket comprises an end protection bracket fixed on the end portion and an island protection bracket separately provided from the end protection bracket, the island protection bracket at least covering the longitudinal sides of the island portion; the plug connector comprises a plug body, a plug terminal fixed on the plug body, and a plug protection bracket located at both longitudinal ends of the plug body, the plug body is provided with two side walls extending in the longitudinal direction and two end walls connected to the two side walls, and the plug protection bracket is fixed on the end walls. The end protection bracket is provided with a socket inner shielding portion that is drawn out downward and formed, and the socket inner shielding portion covers the inner wall surfaces of the side portion and the end portion. The plug protection bracket is provided with a plug outer shielding portion that is drawn out upward and a plug inner shielding portion that is drawn out downward from the top surface of the plug outer shielding portion. The plug outer shielding portion covers the outer wall surfaces of the side wall and the end wall, and the plug inner shielding portion covers the inner wall surfaces of the side wall and the end wall; when the socket connector and the plug connector are plugged in, the plug outer shielding portion contacts the socket inner shielding portion, and the plug inner shielding portion contacts the island protection bracket.

[0006] In a preferred embodiment, the outer shielding portion of the plug is provided with a top surface shielding portion covering the end wall and at least a portion of the side wall, an outer wall shielding portion bent downward and extended from the longitudinal outer side of the top surface shielding portion, and a side shielding portion bent downward and extended from the lateral sides of the top surface shielding portion, the outer wall shielding portion covers the longitudinal outer wall surface of the end wall, the side shielding portion at least partially covers the lateral outer wall surface of the side wall and is connected to the outer wall shielding portion, and the top surface shielding portion, the side shielding portion and the outer wall shielding portion form a seamless connection with each other.

[0007] In a preferred embodiment, the end protection bracket is provided with an outer socket shielding portion that is drawn upward and formed, and the inner socket shielding portion is drawn downward from the top surface of the outer socket shielding portion, and the outer socket shielding portion covers the outer wall surface of the end and at least part of the side.

[0008] In a preferred embodiment, the outer shielding portion of the socket is provided with an end top plate portion covering the top surface of the end portion and a side top plate portion covering the top surface of the side portion, and the side top plate portion is connected to the lateral ends of the end top plate portion; the inner shielding portion of the socket is provided with an end inner plate portion bent downward and extended from the longitudinal inner side of the end top plate portion and a side inner plate portion bent downward and extended from the lateral inner side of the side top plate portion, the end inner plate portion covers the inner wall surface of the end portion, and the side inner plate portion covers a portion of the inner wall surface of the side portion and is connected to the end inner plate portion.

[0009] In a preferred embodiment, when the receptacle connector is plugged into the plug connector, the outer wall shielding portion contacts the end inner plate portion, and / or the side shielding portion contacts the side inner plate portion.

[0010] In a preferred embodiment, the outer shielding portion of the socket is provided with an end outer plate portion bent downward and extended from the longitudinal outer side of the end top plate portion, and a side outer plate portion bent downward and extended from the lateral outer side of the side top plate portion, the end outer plate portion covers the outer wall surface of the end portion, the side outer plate portion at least partially covers the outer wall surface of the side portion and is connected to the end outer plate portion, and the end top plate portion, the side top plate portion, the end outer plate portion and the side outer plate portion form a seamless connection with each other.

[0011] In a preferred embodiment, the side walls and the end walls are arranged to form a plug slot, and the inner shielding portion of the plug is provided with an inner wall shielding portion drawn downward from the inner side of the top surface shielding portion and a bottom wall shielding portion connected to the bottom edge of the inner wall shielding portion, the inner wall shielding portion is U-shaped and covers the inner wall surface of the end wall and part of the side wall, and the bottom wall shielding portion covers the bottom of the plug slot and forms a seamless connection with the inner wall shielding portion.

[0012] In a preferred embodiment, the island portion, the two side portions and the two end portions jointly define a socket slot, and the island portion protection bracket is provided with a bottom plate portion located at the bottom of the socket slot and an island portion shielding portion formed by upwardly drawing from the longitudinal inner side of the bottom plate portion, and the island portion shielding portion covers both longitudinal sides of the island portion; when the socket connector and the plug connector are plugged in, the top surface shielding portion contacts the bottom plate portion, the plug inner shielding portion covers the island portion shielding portion, and the bottom wall shielding portion contacts the top of the island portion shielding portion.

[0013] In a preferred embodiment, the island protection bracket is provided with an end fixing portion bent and extended from the longitudinal outer side of the bottom plate portion and two island welding pieces extending longitudinally outward from the bottom plate portion, the end fixing portion is buried in the end portion, and the two island welding pieces are located on both sides of the end fixing portion in the lateral direction and extend out of the socket body in the longitudinal direction.

[0014] In a preferred embodiment, the island protection bracket is provided with two clamping arms extending laterally from the bottom plate portion to the side portion, and the two clamping arms are located on both sides of the island shielding portion; when the socket connector and the plug connector are plugged in, the clamping arms abut against the side shielding portion of the plug protection bracket.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the end protection bracket is provided with a socket inner shielding portion that is drawn downward and covers the inner wall surfaces of the side and end portions; the plug protection bracket is provided with a plug outer shielding portion that is drawn upward and a plug inner shielding portion that is drawn downward from the top surface of the plug outer shielding portion; the plug outer shielding portion covers the outer wall surfaces of the side and end walls, and the plug inner shielding portion covers the inner wall surfaces of the side and end walls; when the socket connector and the plug connector are plugged in, the plug outer shielding portion contacts the socket inner shielding portion, and the plug inner shielding portion contacts the island protection bracket. The plug protection bracket is integrally drawn and formed, which provides higher guiding strength while enhancing the ability to resist dislocation and deformation; the end protection bracket is integrally drawn and formed, enhancing the overall strength, thereby preventing scratches on the socket body and enhancing the ability to resist dislocation and deformation. Therefore, the socket protection bracket and the plug protection bracket both adopt a fully withdrawable structure, which has high overall strength and is not easily deformed when misaligned and fastened, thereby preventing the risk of short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the socket connector in a preferred embodiment of the present utility model.

[0017] Figure 2 yes Figure 1 A top view of the receptacle connector is shown.

[0018] Figure 3 yes Figure 1 An exploded view of the receptacle connector is shown.

[0019] Figure 4 yes Figure 3 The exploded view of the socket protection bracket in the socket connector is shown.

[0020] Figure 5 yes Figure 4 The exploded diagram of the socket protection bracket is shown from another angle.

[0021] Figure 6 It is a three-dimensional schematic diagram of a plug connector in a preferred embodiment of the present utility model.

[0022] Figure 7 yes Figure 6 Exploded view of the plug connector shown.

[0023] Figure 8 yes Figure 7 A three-dimensional schematic diagram of the plug protection bracket in the plug connector is shown.

[0024] Figure 9 It is a cross-sectional view of a board-to-board connector in a preferred embodiment of the present invention.

[0025] Figure 10 yes Figure 9 A cross-sectional view of the board-to-board connector from another angle is shown. DETAILED DESCRIPTION

[0026] See also Figures 1 to 10 As shown, a preferred embodiment of the present invention discloses a board-to-board connector comprising a mating receptacle connector 100 and a plug connector 200. The receptacle connector 100 is used to be mounted on a circuit board and includes a longitudinally extending receptacle body 10, receptacle terminals 20 retained on the receptacle body 10, and receptacle protection brackets 30 located at longitudinal ends of the receptacle body 10.

[0027] See also Figures 2 to 3 As shown, the socket body 10 includes a central island portion 11 extending longitudinally, two side portions 12 located on either side of the island portion 11, and two end portions 13 connected to the two side portions 12. The island portion 11, the two side portions 12, and the two end portions 13 collectively define a socket slot 14. That is, the island portion 11 is located within the socket slot 14, and the socket slot 14 can accommodate the insertion of the plug connector 200.

[0028] Combine Figure 4 and Figure 5 As shown, the socket protection bracket 30 includes an end protection bracket 40 fixed on the end 13 and an island protection bracket 50 separately provided from the end protection bracket 40. The end protection bracket 40 is drawn and formed by metal parts and covers the end 13 and at least part of the side 12. The island protection bracket 50 covers at least the longitudinal sides of the island 11 to enhance the overall strength of the socket connector 100.

[0029] The end protection bracket 40 is provided with an outer shielding portion 31 of the socket that is drawn upward and formed, and an inner shielding portion 32 of the socket that is drawn downward from the top surface of the outer shielding portion 31 of the socket. The outer shielding portion 31 of the socket covers the outer wall surface of the end portion 13 and at least part of the side portion 12, and the inner shielding portion 32 of the socket covers the inner wall surface of the side portion 12 and the end portion 13. Thus, the outer shielding portion 31 of the socket enhances the overall strength of the socket body 10, thereby preventing the socket body 10 from being scratched, and the inner shielding portion 32 of the socket enhances the ability to resist dislocation and deformation.

[0030] Specifically, the socket outer shielding portion 31 includes an end top plate portion 41 that covers the top surface of the end portion 13, an end outer plate portion 42 that bends downward from the longitudinal outer side of the end top plate portion 41, a side top plate portion 44 that covers the top surface of the side portion 12, and a side outer plate portion 45 that bends downward from the transverse outer side of the side top plate portion 44. The side top plate portion 44 is connected to both transverse ends of the end top plate portion 41, the end outer plate portion 42 covers the outer wall surface of the end portion 13, and the side outer plate portion 45 at least partially covers the outer wall surface of the side portion 12 and is connected to the end outer plate portion 42; thus, the end top plate portion 41, the side top plate portion 44, the end outer plate portion 42, and the side outer plate portion 45 form a seamless connection with each other.

[0031] The socket inner shielding portion 32 is provided with an end inner plate portion 43 bent downward from the longitudinal inner side of the end top plate portion 41 and a side inner plate portion 46 bent downward from the lateral inner side of the side top plate portion 44. The end inner plate portion 43 covers the inner wall surface of the end portion 13, and the side inner plate portion 46 covers part of the inner wall surface of the side portion 12 and is connected to the end inner plate portion 43; thus, the end protection bracket 40 forms an integral metal drawing part.

[0032] The island protection bracket 50 comprises a bottom plate 51 located at the bottom of the receptacle slot 14, an island shielding portion 52 formed by drawing upward from the longitudinal inner side of the bottom plate 51, and two clamping arms 54 extending transversely from the bottom plate 51 to the side portion 12. The two clamping arms 54 are located on either side of the island shielding portion 52. The island shielding portion 52 does not overlap with the longitudinal projection of the end protection bracket 40. The island shielding portion 52 covers both longitudinal sides of the island portion 11 and does not extend beyond the top and side surfaces of the island portion 11, thereby enhancing the overall strength of the island portion 11. The side portion 12 is provided with a relief groove 15 recessed inward from the inner wall. The relief groove 15 is located longitudinally inward of the side top plate 44 and communicates with the receptacle slot 14. The clamping arms 54 are received in the relief groove 15 to engage with the side shielding portion 83 of the plug protection bracket 80 of the plug connector 200.

[0033] The island protection bracket 50 includes an end fixing portion 53 that extends longitudinally outwardly from the bottom plate 51 and two island welding tabs 55 that extend longitudinally outward from the bottom plate 51. The end fixing portion 53 is embedded within the end portion 13 and is covered by the end protection bracket 40. Specifically, the end top plate 41 covers the end fixing portion 53. The two island welding tabs 55 are located on either side of the end fixing portion 53 and extend longitudinally out of the socket body 10.

[0034] At the same time, the bottom edge of the socket outer shielding portion 31 and the island soldering tab 55 are soldered to the same solder pad on the circuit board. Specifically, the end outer plate 42 is provided with an end soldering tab 421 located at the bottom edge. The side outer plate 45 does not extend beyond the lateral outer wall surface of the side portion 12 and is provided with a side soldering tab 451 extending laterally outward from the bottom edge. The side soldering tab 451 is connected to the end soldering tab 421, and the end soldering tab 421 and the island soldering tab 55 are soldered to the same solder pad on the circuit board.

[0035] Therefore, when the plug connector 200 is mated to the socket connector 100, the end protection bracket 40 and the island protection bracket 50 are in contact with the plug protection bracket 80 of the plug connector 200 at the same time, and the end protection bracket 40 and the island protection bracket 50 are welded as a whole, thereby achieving overall conduction among the end protection bracket 40, the island protection bracket 50 and the plug protection bracket 80, thereby improving the flow capacity by parallel shunting, that is, achieving high-strength protection and high flow capacity of the socket connector 100 in a smaller space.

[0036] See also Figures 6 to 8 As shown, the plug connector 200 includes a longitudinally elongated plug body 60, plug terminals 70 secured to the plug body 60, and plug protection brackets 80 located at both longitudinal ends of the plug body 60. The plug body 60 has two longitudinally extending side walls 61 and two end walls 62 connected to the side walls 61. The plug terminals 70 are secured to the side walls 61, and the plug protection brackets 80 are secured to the end walls 62.

[0037] The plug protection bracket 80 comprises an upwardly drawn outer shielding portion 801 and an inner shielding portion 802 drawn downwardly from the top surface of the outer shielding portion 801. The outer shielding portion 801 covers the outer surfaces of the side walls 61 and end walls 62, while the inner shielding portion 802 covers the inner surfaces of the side walls 61 and end walls 62. This enhances the strength of the plug body 60 and prevents damage to the plug body 60 during insertion and removal of the plug connector 200. Furthermore, the integral draw-through molding of the plug protection bracket 80 provides greater guiding strength and enhanced resistance to misalignment and deformation.

[0038] Specifically, the plug outer shielding portion 801 comprises a top shielding portion 81 that covers the end wall 62 and at least a portion of the side walls 61; an outer wall shielding portion 82 that bends downwardly from the longitudinal outer side of the top shielding portion 81; and side shielding portions 83 that bend downwardly from both lateral sides of the top shielding portion 81. The outer wall shielding portion 82 covers the longitudinal outer wall surface of the end wall 62, and the side shielding portions 83 at least partially cover the lateral outer wall surface of the side walls 61 and are connected to the outer wall shielding portion 82. Thus, the top shielding portion 81, the side shielding portions 83, and the outer wall shielding portion 82 form a seamless connection, and the plug outer shielding portion 801 enhances overall strength, thereby preventing scratches on the plug body 60.

[0039] The side walls 61 and the end walls 62 are arranged to form a plug slot 63, and the inner shielding portion 802 of the plug is provided with an inner wall shielding portion 84 drawn downward from the inner side of the top surface shielding portion 81 and a bottom wall shielding portion 85 connected to the bottom edge of the inner wall shielding portion 84. The inner wall shielding portion 84 is U-shaped and covers the inner wall surface of the end wall 62 and part of the side wall 61. The bottom wall shielding portion 85 covers the bottom of the plug slot 63 and forms a seamless connection with the inner wall shielding portion 84. Therefore, the inner shielding portion 802 of the plug has a higher guiding strength while enhancing the anti-dislocation deformation ability.

[0040] Combine Figure 9 and Figure 10 As shown, when the receptacle connector 100 and plug connector 200 are mated, the plug outer shield 801 contacts the receptacle inner shield 32, and the plug inner shield 802 contacts the island protection bracket 50. Therefore, both the receptacle protection bracket 30 and the plug protection bracket 80 utilize a fully retractable structure, providing high overall strength and preventing deformation during misalignment, thereby preventing the risk of short circuits.

[0041] Specifically, when the receptacle connector 100 is mated with the plug connector 200, between the plug protection bracket 80 and the end protection bracket 40: the outer wall shielding portion 82 of the plug protection bracket 80 contacts the end inner plate portion 43 of the end protection bracket 40, and / or the side shielding portion 83 of the plug protection bracket 80 contacts the side inner plate portion 46 of the end protection bracket 40. Between the plug protection bracket 80 and the island protection bracket 50: the top surface shielding portion 81 of the plug protection bracket 80 contacts the bottom plate portion 51 of the island protection bracket 50, the plug inner shielding portion 802 of the plug protection bracket 80 covers the island shielding portion 52, and the bottom wall shielding portion 85 of the plug inner shielding portion 802 contacts the top of the island shielding portion 52; at the same time, the clamping arm 54 of the island protection bracket 50 abuts against the side shielding portion 83 of the plug protection bracket 80. Therefore, the flow capacity is improved by parallel shunting, that is, high-strength protection and high flow capacity of the board-to-board connector are achieved in a smaller space.

[0042] In the present invention, the end protection bracket 40 is provided with a socket inner shielding portion 32 that is drawn downward and formed. The socket inner shielding portion 32 covers the inner wall surfaces of the side portion 12 and the end portion 13. The plug protection bracket 80 is provided with a plug outer shielding portion 801 that is drawn upward and formed, and a plug inner shielding portion 802 that is drawn downward from the top surface of the plug outer shielding portion 801. The plug outer shielding portion 801 covers the outer wall surfaces of the side wall 61 and the end wall 62, and the plug inner shielding portion 802 covers the inner wall surfaces of the side wall 61 and the end wall 62. When the socket connector 100 and the plug connector 200 are plugged together, the plug outer shielding portion 801 contacts the socket inner shielding portion 32, and the plug inner shielding portion 802 contacts the island protection bracket 50. The plug protection bracket 80 is integrally retractable, providing greater guiding strength and enhanced resistance to deformation due to misalignment. The end protection bracket 40 is also integrally retractable, enhancing overall strength, preventing scratches on the socket body 10 and enhancing resistance to deformation due to misalignment. Therefore, both the socket protection bracket 30 and the plug protection bracket 80 utilize a fully retractable structure, resulting in high overall strength and less deformation during misalignment, thus preventing the risk of short circuits.

[0043] In summary, the above are merely preferred embodiments of the present invention and should not be used to limit the scope of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention should still fall within the scope of the present invention patent.

Claims

1. A board-to-board connector, comprising a socket connector and a plug connector that cooperate with each other; the socket connector comprises a socket body, a socket terminal fixed on the socket body, and a socket protection bracket located at both longitudinal ends of the socket body, the socket body being provided with a central island portion extending in the longitudinal direction, two side portions located on both lateral sides of the island portion, and two end portions connected to the two side portions, the socket protection bracket comprising an end protection bracket fixed on the end portions and an island protection bracket separately provided from the end protection bracket, the island protection bracket at least covering both longitudinal sides of the island portion; the plug connector comprising a plug body, a plug terminal fixed on the plug body, and a plug protection bracket located at both longitudinal ends of the plug body, the plug body being provided with two side walls extending in the longitudinal direction and two end walls connected to the two side walls, the plug protection bracket being fixed on the end walls; characterized in that: The end protection bracket is provided with a socket inner shielding portion that is drawn out downward and formed, and the socket inner shielding portion covers the inner wall surfaces of the side portion and the end portion. The plug protection bracket is provided with a plug outer shielding portion that is drawn out upward and a plug inner shielding portion that is drawn out downward from the top surface of the plug outer shielding portion. The plug outer shielding portion covers the outer wall surfaces of the side wall and the end wall, and the plug inner shielding portion covers the inner wall surfaces of the side wall and the end wall; when the socket connector and the plug connector are plugged in, the plug outer shielding portion contacts the socket inner shielding portion, and the plug inner shielding portion contacts the island protection bracket.

2. The board-to-board connector according to claim 1, wherein: The outer shielding portion of the plug is provided with a top surface shielding portion covering the end wall and at least a portion of the side wall, an outer wall shielding portion bent downward and extended from the longitudinal outer side of the top surface shielding portion, and a side shielding portion bent downward and extended from the lateral sides of the top surface shielding portion. The outer wall shielding portion covers the longitudinal outer wall surface of the end wall, the side shielding portion at least partially covers the lateral outer wall surface of the side wall and is connected to the outer wall shielding portion, and the top surface shielding portion, the side shielding portion and the outer wall shielding portion form a seamless connection with each other.

3. The board-to-board connector according to claim 2, wherein: The end protection bracket is provided with an outer socket shielding portion that is drawn upward and formed, and the inner socket shielding portion is drawn downward and formed from the top surface of the outer socket shielding portion, and the outer socket shielding portion covers the outer wall surface of the end and at least part of the side.

4. The board-to-board connector according to claim 3, wherein: The outer shielding part of the socket is provided with an end top plate portion covering the top surface of the end portion and a side top plate portion covering the top surface of the side portion, and the side top plate portion is connected to the two lateral ends of the end top plate portion; the inner shielding part of the socket is provided with an end inner plate portion bent downward and extended from the longitudinal inner side of the end top plate portion and a side inner plate portion bent downward and extended from the lateral inner side of the side top plate portion, the end inner plate portion covers the inner wall surface of the end portion, and the side inner plate portion covers a portion of the inner wall surface of the side portion and is connected to the end inner plate portion.

5. The board-to-board connector according to claim 4, wherein: When the receptacle connector is plugged into the plug connector, the outer wall shielding portion contacts the end inner plate portion, and / or the side shielding portion contacts the side inner plate portion.

6. The board-to-board connector according to claim 4, wherein: The outer shielding portion of the socket is provided with an end outer plate portion bent downward and extended from the longitudinal outer side of the end top plate portion, and a side outer plate portion bent downward and extended from the lateral outer side of the side top plate portion, the end outer plate portion covers the outer wall surface of the end portion, the side outer plate portion at least partially covers the outer wall surface of the side portion and is connected to the end outer plate portion, and the end top plate portion, the side top plate portion, the end outer plate portion and the side outer plate portion form a seamless connection with each other.

7. The board-to-board connector according to claim 2, wherein: The side walls and the end walls are arranged to form a plug slot, and the inner shielding portion of the plug is provided with an inner wall shielding portion drawn downward from the inner side of the top surface shielding portion and a bottom wall shielding portion connected to the bottom edge of the inner wall shielding portion. The inner wall shielding portion is U-shaped and covers the inner wall surface of the end wall and part of the side wall. The bottom wall shielding portion covers the bottom of the plug slot and forms a seamless connection with the inner wall shielding portion.

8. The board-to-board connector according to claim 7, wherein: The island portion, the two side portions and the two end portions together define a socket slot, and the island portion protection bracket is provided with a bottom plate portion located at the bottom of the socket slot and an island portion shielding portion drawn upward from the longitudinal inner side of the bottom plate portion, and the island portion shielding portion covers the longitudinal sides of the island portion; when the socket connector and the plug connector are plugged in, the top surface shielding portion contacts the bottom plate portion, the plug inner shielding portion covers the island portion shielding portion, and the bottom wall shielding portion contacts the top of the island portion shielding portion.

9. The board-to-board connector according to claim 8, wherein: The island protection bracket is provided with an end fixing portion bent and extended from the longitudinal outer side of the bottom plate portion and two island welding pieces extending longitudinally outward from the bottom plate portion. The end fixing portion is buried in the end portion, and the two island welding pieces are located on both sides of the end fixing portion in the lateral direction and extend out of the socket body in the longitudinal direction.

10. The board-to-board connector according to claim 9, wherein: The island protection bracket is provided with two clamping arms extending laterally from the bottom plate to the side, and the two clamping arms are located on both sides of the island shielding portion; when the socket connector and the plug connector are plugged in, the clamping arms abut against the side shielding portion of the plug protection bracket.

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