Plug connector

Abstract

The utility model discloses a plug connector which comprises a lengthwise plug body, plug terminals fixedly held on the plug body and plug protection supports located at two longitudinal ends of the plug body, and the plug body is provided with two side walls extending along the longitudinal direction and two end walls connected with the two side walls. The side wall and the end wall are enclosed to form a plug slot, and the plug protection support is fixedly held on the end wall. The plug protection support is provided with a plug outer shielding part which is formed by upward drawing and an elastic arm which extends into the plug slot from the top surface of the plug outer shielding part, and the plug outer shielding part is provided with a side wall top surface shielding part which at least partially covers the top surface of the side wall. And the elastic arm obliquely extends into the plug slot from the transverse inner side of the side wall top surface shielding part. The plug protection support is in contact with the island part protection support through the elastic arm, and the end part protection support and the island part protection support are integrally welded, so that integral conduction among the plug protection support, the end part protection support and the island part protection support is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of board-to-board connectors, in particular to a plug connector with stable connection. 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 a plug connector and a socket connector that cooperate with each other. Among them, the plug connector includes a plug body, a plug terminal retained on the plug body, and a plug protection bracket located at both longitudinal ends of the plug body; the socket connector includes a socket body, a socket terminal retained on the socket body, and a socket protection bracket located at both longitudinal ends of the socket body, and the above-mentioned protection brackets are mostly formed by punching, bending, and partially extracting metal parts. When the plug connector and the socket connector are plugged in, it is usually through a single elastic contact on the socket protection bracket that abuts against the plug protection bracket, and the resulting board-to-board connector has a poor flow effect.

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

[0004] The purpose of the utility model is to provide a plug connector, wherein an elastic arm is arranged on the inner side of the plug protection bracket to contact the island protection bracket of the socket connector to achieve overall flow.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plug connector comprising a longitudinally elongated plug body, plug terminals secured to the plug body, and plug protection brackets located at both longitudinal ends of the plug body. The plug body is provided with two longitudinally extending side walls and two end walls connected to the side walls, the side walls and the end walls forming a plug slot, and the plug protection bracket is secured to the end walls. The plug protection bracket is provided with an upwardly drawn plug outer shielding portion and an elastic arm extending from the top surface of the plug outer shielding portion into the plug slot. The plug outer shielding portion is provided with a sidewall top surface shielding portion that at least partially covers the top surface of the sidewall. The elastic arm extends obliquely from the lateral inner side of the sidewall top surface shielding portion into the plug slot.

[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 part of the side wall, the top surface shielding portion is provided with an end wall top surface shielding portion covering the top surface of the end wall and the side wall top surface shielding portion, and the side wall top surface shielding portion is connected to the lateral ends of the end wall top surface shielding portion.

[0007] In a preferred embodiment, the outer shielding portion of the plug is provided with an outer wall shielding portion that is bent downward and extended from the longitudinal outer side of the end wall top surface shielding portion, and a side shielding portion that is bent downward and extended from the lateral outer side of the side wall top surface shielding portion, the outer wall shielding portion covers the longitudinal outer wall surface of the end wall, and 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.

[0008] In a preferred embodiment, the plug protection bracket is provided with an extension portion extending outwardly in a transverse direction from the bottom edge of the side shielding portion.

[0009] In a preferred embodiment, the elastic arm overlaps with a projection of the extension portion in the longitudinal direction.

[0010] In a preferred embodiment, the side shielding portion does not extend outward beyond the transverse outer wall surface of the side wall.

[0011] In a preferred embodiment, the plug protection bracket is provided with an inner wall shielding portion that bends and extends downward from the longitudinal inner side of the shielding portion on the top surface of the end wall, and the inner wall shielding portion covers the inner wall surface of the end wall.

[0012] In a preferred embodiment, the inner wall shielding portion does not extend beyond the longitudinal inner wall surface of the end wall.

[0013] In a preferred embodiment, the plug body is provided with a receiving groove corresponding to the elastic arm, and the receiving groove is formed by being recessed inward from the inner wall surface of the side wall and is connected to the plug socket.

[0014] In a preferred embodiment, the elastic arm includes an elastic contact portion extending from the shielding portion on the top surface of the side wall toward a direction away from the side wall, and an end portion folded back from an end of the elastic contact portion.

[0015] Compared to the prior art, the present invention offers the following advantages: the plug protection bracket includes an upwardly drawn outer shielding portion and an elastic arm extending from the top surface of the outer shielding portion into the plug slot. The outer shielding portion includes a sidewall top shielding portion that at least partially covers the top surface of the sidewall. The elastic arm extends obliquely from the transverse inner side of the sidewall top shielding portion into the plug slot. The plug protection bracket contacts the island protection bracket via the elastic arm, and the end protection bracket is integrally welded to the island protection bracket, achieving integrated electrical connection between the end protection bracket, the island protection bracket, and the plug protection bracket. 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 schematic diagram of the socket protection bracket shown is an exploded view 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 The figure shows a three-dimensional schematic diagram of the plug protection bracket in the plug connector. DETAILED DESCRIPTION

[0024] See also Figures 1 to 8 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] See also Figures 6 to 8As 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.

[0035] The plug protection bracket 80 is provided with an upwardly drawn outer shielding portion 801. This shielding portion 801 covers the outer surfaces of the side walls 61 and end wall 62, thereby enhancing the strength of the plug body 60 and preventing damage to the plug body 60 during insertion and removal of the plug connector 200. Specifically, the outer shielding portion 801 includes 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.

[0036] Furthermore, the top shielding portion 81 includes an end wall top shielding portion 811 that covers the top surface of the end wall 62, and a side wall top shielding portion 812 that at least partially covers the top surface of the side wall 61. The side wall top shielding portion 812 is connected to both lateral ends of the end wall top shielding portion 811. The outer wall shielding portion 82 bends downwardly and extends from the longitudinal outer side of the end wall top shielding portion 811, covering the longitudinal outer wall surface of the end wall 62. The side shielding portions 83 bend downwardly and extend from both lateral sides of the side wall top shielding portion 812, at least partially covering the lateral outer wall surface of the side wall 61. The side shielding portions 83 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 are seamlessly connected to each other, and the plug outer shielding portion 801 enhances the overall strength, thereby preventing scratches on the plug body 60.

[0037] The side walls 61 and end walls 62 enclose a plug slot 63. The plug protection bracket 80 includes an inner wall shielding portion 84 that extends downward from the longitudinal inner side of the end wall top shielding portion 811, a resilient arm 85 that extends from the top surface of the plug outer shielding portion 801 into the plug slot 63, and an extension portion 86 that extends laterally outward from the bottom edge of the side shielding portion 83. The extension portion 86 is designed to be soldered to a circuit board. The inner wall shielding portion 84 covers the inner surface of the end wall 62 and does not extend beyond the longitudinal inner surface of the end wall 62. The resilient arm 85 overlaps the projection of the extension portion 86 in the longitudinal direction, and the side shielding portion 83 does not extend outward beyond the transverse outer surface of the side wall 61.

[0038] The elastic arm 85 extends obliquely from the lateral inner side of the side wall top shielding portion 812 into the plug slot 63. Specifically, the plug body 60 is provided with a corresponding receiving groove 64 for accommodating the elastic arm 85. The receiving groove 64 is formed inwardly from the inner wall surface of the side wall 61 and is connected to the plug slot 63. The elastic arm 85 has an elastic contact portion extending from the side wall top shielding portion 812 in a direction away from the side wall 61 and a terminal portion folded back from the terminal end of the elastic contact portion. As a result, the elastic arm 85 can move relative to the receiving groove 64. The plug protection bracket 80 contacts the island protection bracket 50 through the elastic arm 85, achieving integrated electrical connection between the end protection bracket 40, the island protection bracket 50, and the plug protection bracket 80.

[0039] In this embodiment, when the receptacle connector 100 and the plug connector 200 are mated, the plug outer shield 801 contacts the receptacle inner shield 32, and the elastic arm 85 contacts the island protective bracket 50. Therefore, both the receptacle protective bracket 30 and the plug protective bracket 80 utilize a fully retractable structure, providing high overall strength and preventing deformation during misalignment, thereby preventing the risk of short circuits.

[0040] 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 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 46 of the end protection bracket 40. Between the plug protection bracket 80 and the island protection bracket 50, the top shielding portion 81 of the plug protection bracket 80 contacts the bottom plate 51 of the island protection bracket 50, and the elastic arms 85 of the plug protection bracket 80 clamp onto the lateral outer wall of the island shielding portion 52. Simultaneously, the clamping arms 54 of the island protection bracket 50 abut against the side shielding portions 83 of the plug protection bracket 80. This improves flow capacity through parallel flow diversion, achieving high-strength protection and high flow capacity for the board-to-board connector within a compact space.

[0041] In the present invention, the plug protection bracket 80 is provided with an upwardly drawn plug outer shielding portion 801 and an elastic arm 85 extending from the top surface of the plug outer shielding portion 801 into the plug slot 63. The plug outer shielding portion 801 is provided with a sidewall top shielding portion 812 that at least partially covers the top surface of the sidewall 61. The elastic arm 85 extends obliquely from the transverse inner side of the sidewall top shielding portion 812 into the plug slot 63. The plug protection bracket 80 is in contact with the island protection bracket 50 via the elastic arm 85, and the end protection bracket 40 is integrally welded to the island protection bracket 50, achieving integrated electrical connection between the end protection bracket 40, the island protection bracket 50, and the plug protection bracket 80.

[0042] 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 plug connector comprising a longitudinally elongated plug body, plug terminals secured to the plug body, and plug protection brackets located at longitudinal ends of the plug body, the plug body having two longitudinally extending side walls and two end walls connected to the side walls, the side walls and end walls enclosing a plug slot, the plug protection brackets secured to the end walls; characterized in that: The plug protection bracket is provided with an upwardly drawn plug outer shielding portion and an elastic arm extending from the top surface of the plug outer shielding portion into the plug slot. The plug outer shielding portion is provided with a side wall top surface shielding portion that at least partially covers the top surface of the side wall. The elastic arm extends obliquely from the lateral inner side of the side wall top surface shielding portion into the plug slot.

2. The plug connector according to claim 1, wherein: The plug outer shielding portion is provided with a top surface shielding portion covering the end wall and at least part of the side wall, the top surface shielding portion is provided with an end wall top surface shielding portion covering the top surface of the end wall and the side wall top surface shielding portion, and the side wall top surface shielding portion is connected to the lateral ends of the end wall top surface shielding portion.

3. The plug connector according to claim 2, wherein: The plug outer shielding portion is provided with an outer wall shielding portion that is bent downward and extended from the longitudinal outer side of the end wall top surface shielding portion, and a side shielding portion that is bent downward and extended from the lateral outer side of the side wall top surface shielding portion. The outer wall shielding portion covers the longitudinal outer wall surface of the end wall, and 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.

4. The plug connector according to claim 3, wherein: The plug protection bracket is provided with an extension portion extending outwardly from the bottom edge of the side shielding portion in a transverse direction.

5. The plug connector according to claim 4, wherein: The elastic arm overlaps with a projection of the extension portion in a longitudinal direction.

6. The plug connector according to claim 3, wherein: The side shielding portion does not extend outward beyond the transverse outer wall surface of the side wall.

7. The plug connector according to claim 2, wherein: The plug protection bracket is provided with an inner wall shielding portion which is bent downward and extended from the longitudinal inner side of the shielding portion on the top surface of the end wall, and the inner wall shielding portion covers the inner wall surface of the end wall.

8. The plug connector according to claim 7, wherein: The inner wall shielding portion does not extend beyond the longitudinal inner wall surface of the end wall.

9. The plug connector according to claim 1, wherein: The plug body is provided with a receiving groove corresponding to the elastic arm. The receiving groove is formed by being recessed inward from the inner wall surface of the side wall and is communicated with the plug slot.

10. The plug connector according to claim 9, wherein: The elastic arm is provided with an elastic contact portion extending from the shielding portion on the top surface of the side wall toward a direction away from the side wall and a terminal portion folded back from the terminal end of the elastic contact portion.

Images