plug connector

Abstract

The utility model discloses a plug connector, including plug body and the plug protection support of the longitudinal both ends of plug body, plug body is equipped with two side walls and is connected to two end walls of two side walls, the plug protection support holds on the end wall and is equipped with the plug outer shielding portion of drawing up to the top and the plug inner shielding portion of drawing down from the top surface of plug outer shielding portion. The plug inner shielding portion is equipped with the inner wall shielding portion of covering the inner wall surface of end wall and part side wall and the bottom wall shielding portion of being connected to the bottom edge of inner wall shielding portion, the lower surface of bottom wall shielding portion exposes the bottom of plug body and is welded to the circuit board. The plug protection support adopts the structure of drawing and reverse drawing to realize the full metal cladding of end wall, effectively promotes the strength of plug body and strengthens the anti -dislocation deformation ability. Meanwhile, the bottom wall shielding portion forms the welding area, thereby improves the welding strength and realizes higher through -flow capacity.

Description

Technical Field

[0001] This utility model relates to the field of board-to-board connector technology, and in particular to a plug connector for stable connection. Background Technology

[0002] Electrical connectors enable electrical connections and signal transmission between devices, components, and systems, and are essential 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, typically consisting of mating plug and socket connectors. The plug connector includes a plug body, plug terminals fixed to the plug body, and plug protective supports located at both longitudinal ends of the plug body. The socket connector includes a socket body, socket terminals fixed to the socket body, and socket protective supports located at both longitudinal ends of the socket body. These protective supports are often formed using metal stamping, bending, and partial drawing processes. When the plug and socket connectors are mated, they typically abut against the plug protective support via a single elastic contact on the socket protective support. This results in poor current flow in the board-to-board connector. Furthermore, current plug protective supports are not fully enclosed on the inside, providing insufficient protection for the plug body, making the board-to-board connector prone to damage, misalignment, and short circuits during mating.

[0003] Therefore, it is hoped that a new plug connector can be proposed to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide a plug connector that effectively improves the strength of the plug body and achieves higher current carrying capacity.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a plug connector for mounting on a circuit board, the plug connector comprising a longitudinally elongated plug body, plug terminals fixed to the plug body, and plug protective brackets located at both longitudinal ends of the plug body. The plug body has two longitudinally extending sidewalls and two endwalls connected to the two sidewalls. The plug protective brackets are fixed to the endwalls and have an upwardly drawn outer plug shielding portion and an inner plug shielding portion drawn downward from the top surface of the outer plug shielding portion. The outer plug shielding portion covers the outer wall surfaces of the sidewalls and the endwalls, and the inner plug shielding portion covers the inner wall surfaces of the sidewalls and the endwalls. The inner plug shielding portion has an inner wall shielding portion covering the inner wall surfaces of the endwalls and part of the sidewalls, and a bottom wall shielding portion connected to the bottom edge of the inner wall shielding portion. The lower surface of the bottom wall shielding portion is exposed at the bottom of the plug body and soldered to the circuit board.

[0006] In a preferred embodiment, the plug outer shielding portion is provided with a top surface shielding portion that covers the top surface of the end wall and at least part of the top surface of the side wall, and the inner wall shielding portion is drawn downward from the inside of the top surface shielding portion.

[0007] In a preferred embodiment, the top surface shielding portion includes an end wall top surface shielding portion covering the top surface of the end wall and a side wall top surface shielding portion covering the top surface of at least a portion of the side wall. The inner wall shielding portion includes an end wall inner wall shielding portion extending downward from the inner side of the end wall top surface shielding portion and a side wall inner wall shielding portion extending downward from the inner side of the side wall top surface shielding portion. The end wall inner wall shielding portion covers the inner wall surface of the end wall, and the side wall inner wall shielding portion covers a portion of the inner wall surface of the side wall.

[0008] In a preferred embodiment, the bottom wall shielding portion, the end wall inner wall shielding portion, and the side wall inner wall shielding portion are seamlessly connected to each other.

[0009] In a preferred embodiment, the bottom wall shielding portion has a gap in the middle to divide the bottom wall shielding portion into two pieces on both sides in the lateral direction, and the gap extends upward to the inner wall shielding portion of the end wall.

[0010] In a preferred embodiment, the plug outer shielding portion is provided with an outer wall shielding portion that bends downward from the longitudinal outer side of the top surface shielding portion and a side shielding portion that bends downward from both transverse sides of the 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 transverse outer wall surface of the side wall and is connected to the outer wall shielding portion.

[0011] In a preferred embodiment, the top surface shielding portion, the side surface shielding portion, and the outer wall shielding portion are seamlessly connected to each other.

[0012] In a preferred embodiment, the plug outer shielding portion is provided with a welding foot extending laterally outward from the bottom of the side shielding portion. The welding foot is used to weld to the circuit board and overlaps with the bottom shielding portion laterally.

[0013] In a preferred embodiment, the sidewall and the endwall surround to form a plug slot, and the plug body has a bottom wall located below the plug slot. The bottom wall shielding portion is embedded in the bottom wall and the lower surface of the bottom wall shielding portion is exposed on the bottom surface of the bottom wall.

[0014] In a preferred embodiment, the plug body is integrally injection molded onto the plug terminals and the plug protective bracket to form the plug connector.

[0015] Compared with the prior art, this utility model has the following beneficial effects: The plug inner shielding part is provided with an inner wall shielding part covering the inner wall surface of the end wall and part of the side wall, and a bottom wall shielding part connected to the bottom edge of the inner wall shielding part. The lower surface of the bottom wall shielding part is exposed to the bottom of the plug body and welded to the circuit board. The plug protective bracket adopts a tension and reverse tension structure to achieve full metal cladding at the end wall of the plug body, effectively improving the strength of the plug body and enhancing its resistance to misalignment and deformation. At the same time, the bottom wall shielding part forms a welding area, thereby improving the welding strength to prevent deformation. Furthermore, the bottom wall shielding part and the welding feet are both welded to the circuit board and connected in parallel to conduct current, achieving a higher current carrying capacity. Attached Figure Description

[0016] Figure 1 This is a top view of the plug connector in a preferred embodiment of the present invention.

[0017] Figure 2 yes Figure 1 The diagram shown is an exploded view of the plug connector.

[0018] Figure 3 yes Figure 2 A three-dimensional schematic diagram of the plug protection bracket in the plug connector shown.

[0019] Figure 4 This is a top view of the socket connector in a preferred embodiment of the present invention.

[0020] Figure 5 yes Figure 4 The diagram shown is an exploded view of the socket connector.

[0021] Figure 6 yes Figure 5An exploded view of the socket protection bracket in the socket connector shown. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0023] Please see Figures 1 to 6 As shown, a preferred embodiment of the present invention discloses a board-to-board connector, which includes a plug connector 100 and a socket connector 200 that mate with each other. The plug connector 100 is used to be mounted on a circuit board and includes a longitudinally elongated plug body 10, plug terminals 20 fixed on the plug body 10, and plug protection brackets 30 located at both longitudinal ends of the plug body 10.

[0024] Please see Figures 1 to 3 As shown, the plug body 10 is integrally injection molded onto the plug terminal 20 and the plug protective bracket 30 to form the aforementioned plug connector 100. The plug body 10 has two longitudinally extending side walls 11 and two end walls 12 connected to the two side walls 11. The plug terminal 20 is fixed to the side walls 11, and the plug protective bracket 30 is fixed to the end walls 12. Meanwhile, the side walls 11 and the end walls 12 surround to form a plug slot 13, and the plug body 10 also has a bottom wall 14 located below the plug slot 13.

[0025] The plug protection bracket 30 has an upwardly drawn-out outer plug shielding part 301 and an inner plug shielding part 302 drawn downwardly from the top surface of the outer plug shielding part 301. The outer plug shielding part 301 covers the outer wall surfaces of the side wall 11 and the end wall 12, and the inner plug shielding part 302 covers the inner wall surfaces of the side wall 11 and the end wall 12. The plug protection bracket 30 adopts a stretching and reverse stretching structure to achieve full metal coverage of the end wall 12 of the plug body 10, thereby improving the strength of the plug body 10 and preventing damage to the plug body 10 when the plug connector 100 is inserted or removed. At the same time, the plug protection bracket 30 is integrally drawn-out, which enhances the resistance to misalignment and deformation while providing higher guiding strength.

[0026] Specifically, the plug outer shielding portion 301 includes a top shielding portion 31 covering the top surface of the end wall 12 and at least part of the top surface of the side wall 11, an outer wall shielding portion 32 extending downward from the longitudinal outer side of the top shielding portion 31, a side shielding portion 33 extending downward from the transverse sides of the top shielding portion 31, and a soldering foot 34 extending outward from the bottom of the side shielding portion 33. The soldering foot 34 is used for soldering to the circuit board. The outer wall shielding portion 32 covers the longitudinal outer wall surface of the end wall 12, and the side shielding portion 33 at least partially covers the transverse outer wall surface of the side wall 11 and is connected to the outer wall shielding portion 32. Thus, the top shielding portion 31, the side shielding portion 33, and the outer wall shielding portion 32 form a seamless connection with each other, and the plug outer shielding portion 301 enhances the overall strength, thereby preventing scratches on the plug body 10.

[0027] The plug inner shielding part 302 is provided with an inner wall shielding part 35 drawn downward from the inside of the top shielding part 31 and a bottom wall shielding part 36 connected to the bottom edge of the inner wall shielding part 35. The inner wall shielding part 35 is U-shaped and covers the inner wall surface of the end wall 12 and part of the side wall 11. The bottom wall shielding part 36 and the inner wall shielding part 35 form a seamless connection. Therefore, the plug inner shielding part 302 enhances the resistance to misalignment and deformation while providing higher guiding strength.

[0028] Furthermore, the inner wall shielding portion 35 is drawn downward from the inside of the top surface shielding portion 31; the top surface shielding portion 31 is provided with an end wall top surface shielding portion 311 covering the top surface of the end wall 12 and a side wall top surface shielding portion 312 covering the top surface of at least part of the side wall 11; the inner wall shielding portion 35 is provided with an end wall inner wall shielding portion 351 extending downward from the inside of the end wall top surface shielding portion 311 and a side wall inner wall shielding portion 352 extending downward from the inside of the side wall top surface shielding portion 312; the end wall inner wall shielding portion 351 covers the inner wall surface of the end wall 12, and the side wall inner wall shielding portion 352 covers the inner wall surface of part of the side wall 11. Therefore, the bottom wall shielding portion 36, the end wall inner wall shielding portion 351, and the side wall inner wall shielding portion 352 are seamlessly connected to each other.

[0029] In this embodiment, the lower surface of the bottom wall shielding portion 36 is exposed at the bottom of the plug body 10 and soldered to the circuit board. Specifically, the bottom wall shielding portion 36 is embedded in the bottom wall 14, and the lower surface of the bottom wall shielding portion 36 is exposed on the bottom surface of the bottom wall 14. Simultaneously, the bottom wall shielding portion 36 has a gap 361 located in the middle to divide the bottom wall shielding portion 36 into two pieces on both sides laterally, and the gap 361 extends upward to the inner wall shielding portion 351 of the end wall. Furthermore, the soldering foot 34 overlaps with the bottom wall shielding portion 36 laterally. Therefore, the bottom wall shielding portion 36 forms a soldering area, thereby improving the soldering strength to prevent deformation, and since both the bottom wall shielding portion 36 and the soldering foot 34 are soldered to the circuit board and connected in parallel, a higher current carrying capacity is achieved.

[0030] Please see Figures 4 to 5 As shown, the socket connector 200 is used for mounting on another circuit board and includes a longitudinally extending socket body 40, socket terminals 50 fixed on the socket body 40, and socket protective brackets 60 located at both longitudinal ends of the socket body 40. The socket body 40 has a longitudinally extending central island 41, two side portions 42 located on both lateral sides of the island 41, and two end portions 43 connected to the two side portions 42. The island 41, the two side portions 42, and the two end portions 43 together define a socket slot 44, that is, the island 41 is located within the socket slot 44, and the socket slot 44 allows the plug connector 100 to be inserted.

[0031] Combination Figure 6 As shown, the socket protection bracket 60 includes an end protection bracket 70 fixed to the end 43 and an island protection bracket 80 separately disposed from the end protection bracket 70. The end protection bracket 70 is drawn and formed from a metal part and covers the end 43 and at least part of the side 42. The island protection bracket 80 covers at least the longitudinal sides of the island 41 to improve the overall strength of the socket connector 200.

[0032] The end protection bracket 60 is provided with an upwardly drawn outer socket shielding part 61 and an inner socket shielding part 62 drawn downward from the top surface of the outer socket shielding part 61. The outer socket shielding part 61 covers the outer wall surface of the end 43 and at least part of the side 42, and the inner socket shielding part 62 covers the inner wall surface of the side 42 and the end 43. Thus, the outer socket shielding part 61 enhances the overall strength of the socket body 40, thereby preventing scratches on the socket body 40, and the inner socket shielding part 62 enhances the resistance to misalignment and deformation.

[0033] Specifically, the socket outer shielding portion 61 includes an end top plate portion 71 covering the top surface of the end portion 43, an end outer plate portion 72 extending downward from the longitudinal outer side of the end top plate portion 71, a side top plate portion 74 covering the top surface of the side portion 42, and a side outer plate portion 75 extending downward from the lateral outer side of the side top plate portion 74. The side top plate portion 74 is connected to both lateral ends of the end top plate portion 71, the end outer plate portion 72 covers the outer wall surface of the end portion 43, and the side outer plate portion 75 at least partially covers the outer wall surface of the side portion 42 and is connected to the end outer plate portion 72; thereby, the end top plate portion 71, the side top plate portion 74, the end outer plate portion 72, and the side outer plate portion 75 are seamlessly connected to each other.

[0034] The socket inner shielding portion 62 has an end inner plate portion 73 extending downward from the longitudinal inner side of the end top plate portion 71 and a side inner plate portion 76 extending downward from the transverse inner side of the side top plate portion 74. The end inner plate portion 73 covers the inner wall surface of the end portion 43, and the side inner plate portion 76 covers part of the inner wall surface of the side portion 42 and is connected to the end inner plate portion 73; thus, the end protective bracket 70 forms an integral metal pull-out component. Simultaneously, the end inner plate portion 73 has a downwardly extending end inner welding tab 730 for welding to another circuit board.

[0035] The island protection bracket 80 includes a base plate 81 located at the bottom of the socket slot 44, an island shielding portion 82 drawn upward from the longitudinal inner side of the base plate 81, an island welding piece 83 extending longitudinally outward from the base plate 81 into the socket body 40, and two elastic arms 84 extending laterally outward from the base plate 81. The two elastic arms 84 are located on both sides of the island shielding portion 82. The projection of the island shielding portion 82 and the end protection bracket 70 in the longitudinal direction does not overlap. The island shielding portion 82 covers both longitudinal sides of the island 41 and does not extend beyond the top and side surfaces of the island 41. Furthermore, the island shielding portion 82 has an embedded portion 821 extending inward into the island 41, which, while improving the overall strength of the island 41, also secures the island protection bracket 80 to the socket body 40.

[0036] The bottom edge of the outer shielding portion 61 of the socket is soldered to the same solder pad on the circuit board as the island solder piece 83. Specifically, the end outer plate portion 72 is provided with an end solder piece located at the bottom edge, and the side outer plate portion 75 does not extend beyond the lateral outer wall surface of the side portion 42 and is provided with a side solder piece extending laterally outward from the bottom edge. The side solder piece is connected to the end solder piece and is located on both lateral sides of the island solder piece 83. The end solder piece and the island solder piece 83 are soldered to the same solder pad on the circuit board. The elastic arm 84 extends laterally outward and bends upward to contact the side shielding portion 33 of the plug protection bracket 30 of the plug connector 100, thereby achieving overall current flow.

[0037] Therefore, when the plug connector 100 is mated with the socket connector 200, the end protection bracket 70 and the island protection bracket 80 simultaneously contact the plug protection bracket 30, and the end protection bracket 70 and the island protection bracket 80 are integrally welded, achieving overall conductivity among the end protection bracket 70, the island protection bracket 80, and the plug protection bracket 30. This parallel current distribution enhances the current carrying capacity, achieving high-strength protection and high current carrying capacity for the socket connector 200 within a smaller space. Specifically, when the socket connector 200 is inserted into the plug connector 100, the outer plug shield 301 contacts the inner socket shield 62, and the inner plug shield 302 contacts the island protection bracket 80. Thus, both the socket protection bracket 60 and the plug protection bracket 30 adopt a fully pull-out structure, resulting in high overall strength and preventing deformation during misalignment, thereby preventing short-circuit risks.

[0038] Simultaneously, when the socket connector 200 and the plug connector 100 are plugged in, between the plug protection bracket 30 and the end protection bracket 70: the outer wall shielding portion 32 of the plug protection bracket 30 contacts the end inner plate portion 73 of the end protection bracket 70, and / or the side shielding portion 33 of the plug protection bracket 30 contacts the side inner plate portion 76 of the end protection bracket 70. Between the plug protection bracket 30 and the island protection bracket 80: the top surface shielding portion 31 of the plug protection bracket 30 contacts the bottom plate portion 81 of the island protection bracket 80, the inner wall shielding portion 35 of the plug protection bracket 30 covers the island shielding portion 82, and the side shielding portion 33 of the plug protection bracket 30 contacts the elastic arm 84 of the protection bracket 80. Thus, by parallel current sharing, the current carrying capacity is improved, achieving high-strength protection and high current carrying capacity for the board-to-board connector within a smaller space.

[0039] In this invention, the plug inner shielding portion 302 includes an inner wall shielding portion 35 covering the inner wall surface of the end wall 12 and part of the side wall 11, and a bottom wall shielding portion 36 connected to the bottom edge of the inner wall shielding portion 35. The lower surface of the bottom wall shielding portion 36 is exposed to the bottom of the plug body 10 and welded to the circuit board. The plug protection bracket 30 adopts a tension and reverse tension structure to achieve full metal cladding at the end wall 12 of the plug body 10, effectively improving the strength of the plug body 10 and enhancing its resistance to misalignment and deformation. At the same time, the bottom wall shielding portion 36 forms a welding area, thereby improving the welding strength to prevent deformation. Furthermore, the bottom wall shielding portion 36 and the welding feet 34 are both welded to the circuit board and connected in parallel for current flow, achieving a higher current flow capacity.

[0040] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. A plug connector for mounting on a circuit board, the plug connector comprising a longitudinally elongated plug body, plug terminals fixed to the plug body, and plug protective brackets located at both longitudinal ends of the plug body, the plug body having two longitudinally extending sidewalls and two endwalls connected to the two sidewalls, the plug protective brackets being fixed to the endwalls and having an upwardly drawn outer plug shielding portion and an inner plug shielding portion drawn downward from the top surface of the outer plug shielding portion, the outer plug shielding portion covering the outer wall surfaces of the sidewalls and the endwalls, and the inner plug shielding portion covering the inner wall surfaces of the sidewalls and the endwalls; characterized in that: The plug inner shielding part is provided with an inner wall shielding part that covers the inner wall surface of the end wall and part of the side wall, and a bottom wall shielding part connected to the bottom edge of the inner wall shielding part. The lower surface of the bottom wall shielding part is exposed to the bottom of the plug body and is soldered to the circuit board.

2. The plug connector as described in claim 1, characterized in that: The plug outer shielding portion is provided with a top surface shielding portion covering the top surface of the end wall and at least part of the top surface of the side wall, and the inner wall shielding portion is drawn downward from the inside of the top surface shielding portion.

3. The plug connector as described in claim 2, characterized in that: The top surface shielding portion includes an end wall top surface shielding portion covering the top surface of the end wall and a side wall top surface shielding portion covering the top surface of at least a portion of the side wall. The inner wall shielding portion includes an end wall inner wall shielding portion extending downward from the inner side of the end wall top surface shielding portion and a side wall inner wall shielding portion extending downward from the inner side of the side wall top surface shielding portion. The end wall inner wall shielding portion covers the inner wall surface of the end wall, and the side wall inner wall shielding portion covers a portion of the inner wall surface of the side wall.

4. The plug connector as described in claim 3, characterized in that: The bottom wall shielding portion, the end wall inner wall shielding portion, and the side wall inner wall shielding portion are seamlessly connected to each other.

5. The plug connector as described in claim 3, characterized in that: The bottom wall shielding portion has a gap in the middle to divide the bottom wall shielding portion into two pieces on both sides in the lateral direction, and the gap extends upward to the inner wall shielding portion of the end wall.

6. The plug connector as described in claim 2, characterized in that: The plug outer shielding portion has an outer wall shielding portion that bends downward from the longitudinal outer side of the top surface shielding portion and a side shielding portion that bends downward from both sides of the transverse direction of the 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 transverse outer wall surface of the side wall and is connected to the outer wall shielding portion.

7. The plug connector as described in claim 6, characterized in that: The top surface shielding part, the side shielding part, and the outer wall shielding part are seamlessly connected to each other.

8. The plug connector as described in claim 6, characterized in that: The plug outer shielding part is provided with a welding foot extending laterally outward from the bottom of the side shielding part. The welding foot is used to weld to the circuit board and overlaps with the bottom shielding part in the lateral direction.

9. The plug connector as claimed in claim 1, characterized in that: The sidewall and the endwall surround to form a plug slot. The plug body has a bottom wall located below the plug slot. The bottom wall shielding part is embedded in the bottom wall and the lower surface of the bottom wall shielding part is exposed on the bottom surface of the bottom wall.

10. The plug connector as claimed in claim 9, characterized in that: The plug body is integrally injection molded onto the plug terminals and the plug protective bracket to form the plug connector.

Images