Socket connector
Through the design of the socket protection bracket set in a split body, especially the island protection bracket, the problem of insufficient flow capacity of the existing socket connector in a small space is solved, and high-strength protection and high-flow capacity are improved.
Patent Information
- Application Number
- CN202422227023.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Existing socket connectors do not achieve high flow capacity and high strength protection in smaller spaces.
The socket protection bracket is arranged separately, including the end protection bracket and the island protection bracket. The island protection bracket is equipped with a bottom plate part, an island shielding part, an end fixing part and a clamping arm. The clamping arm and the plug protection bracket are diverted in parallel to improve the flow capacity.
High strength protection and high flow capacity of socket connectors are achieved in a smaller space, avoiding loosening and instant breaking abnormalities, ensuring stable connection in special environments.
Smart Images

Figure CN223066491U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of board-to-board connectors, in particular to a socket connector with high current-carrying capacity. Background Art
[0002] An electrical connector conducts electrical connection and signal transmission between devices, components, and systems, and is a basic component necessary for forming a complete system. Currently, electrical connectors are widely used in various electronic products. A board-to-board connector (abbreviated as BTB) is used to electrically connect two parallel circuit boards, and generally includes a mating plug connector and a socket connector. The plug connector and the socket connector respectively include an insulating body and conductive terminals. The insulating body mainly functions to insulate and position the conductive terminals, and the conductive terminals mainly function to conduct electricity. The socket protection bracket of the current socket connector has the functions of protecting the socket body and enhancing the overall strength of the socket connector. However, a part of the structure of the existing socket protection bracket located at the central island part of the socket body only functions to protect the central island part and does not play a role in current conduction. Therefore, the existing socket protection bracket cannot achieve the function of conducting 10A or more current in a small space.
[0003] Therefore, it is desired to propose a new socket connector to overcome the above defects. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a socket connector, which realizes high-strength protection and high current-carrying capacity in a small space.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A socket connector includes a longitudinally-extended socket body, socket terminals fixed on the socket body, and socket protection brackets located at the longitudinal two ends of the socket body. The socket body is provided with a longitudinally-extended central island part, two side parts located on the transverse two sides of the island part, and two end parts connecting the two side parts. The island part, the two side parts, and the two end parts jointly define a socket slot. The socket protection bracket includes an end protection bracket fixed on the end part. The socket protection bracket further includes an island protection bracket separately arranged from the end protection bracket. The island protection bracket is provided with a bottom plate part located at the bottom of the socket slot, an island shielding part drawn and formed upwards from the longitudinal inner side of the bottom plate part, an end fixing part bent and extended from the longitudinal outer side of the bottom plate part, and two clamping arms extending transversely from the bottom plate part to the side part. The island shielding part covers the longitudinal two sides of the island part. The end fixing part is fixed in the end part and covered by the end protection bracket. The two clamping arms are located on the transverse two sides of the island shielding part.
[0006] In a preferred embodiment, the socket terminals are arranged in two rows longitudinally and held on the side portion or the island portion, and the clamping arms are located on the longitudinal two sides of the socket terminals.
[0007] In a preferred embodiment, the socket terminals include forward terminals and reverse terminals with the same structure, and the forward terminals and the reverse terminals in each row of the socket terminals are arranged at intervals longitudinally.
[0008] In a preferred embodiment, the forward terminal is provided with a fixing portion held on the side portion, a U-shaped elastic portion extending from the top of the fixing portion into the socket slot, and a welding leg extending laterally outward from the bottom of the fixing portion; the reverse terminal is provided with a fixing portion held on the island portion, a U-shaped elastic portion extending from the top of the fixing portion into the socket slot, and a welding leg extending laterally inward from the bottom of the fixing portion.
[0009] In a preferred embodiment, the island portion is provided with a longitudinally extending slot penetrating vertically, the welding leg of the forward terminal extends out of the socket body, and the welding leg of the reverse terminal extends into the slot.
[0010] In a preferred embodiment, the end protection bracket is provided with an integrally formed end reinforcing piece and side reinforcing pieces, the end reinforcing piece covers the end portion, and the side reinforcing pieces are connected to the transverse two ends of the end reinforcing piece and at least partially cover the side portion.
[0011] In a preferred embodiment, the end reinforcing piece is provided with an end top plate portion covering the top surface of the end portion, an end side plate portion bent downward and extending from the longitudinal outer side of the end top plate portion, and elastic buckling portions extending inward from the transverse two sides of the end side plate portion; the end top plate portion covers above the end fixing portion, the end side plate portion shields the outer wall surface of the end portion, and the elastic buckling portions extend into the socket slot and are located on the longitudinal outer sides of the clamping arms.
[0012] In a preferred embodiment, the end side plate portion is provided with an end welding piece at the bottom edge, the island protection bracket is provided with two island welding pieces extending longitudinally outward from the bottom plate portion, the two island welding pieces extend to the transverse two sides of the end welding piece, and the island welding pieces and the end welding piece are welded to the same welding pad.
[0013] In a preferred embodiment, the side wall reinforcing piece is provided with a side top plate portion covering the top surface of the side portion and a side side plate portion bent downward and extending from the transverse outer side of the side top plate portion, the side top plate portion is connected to the transverse two ends of the end top plate portion, and the side side plate portion at least partially covers the outer wall surface of the side portion.
[0014] In a preferred embodiment, the end protection bracket is provided with a guiding portion drawn and formed transversely inwardly from the side top plate portion and the end top plate portion, and the guiding portion extends obliquely downward into the socket slot.
[0015] Compared with the prior art, the present utility model has the following beneficial effects: The socket protection bracket further includes an island protection bracket separately provided from the end protection bracket. The island protection bracket is provided with a bottom plate portion located at the bottom of the socket slot, an island shielding portion drawn and formed upward longitudinally inwardly from the bottom plate portion, an end fixing portion bent and extending longitudinally outwardly from the bottom plate portion, and two clamping arms extending transversely from the bottom plate portion to the side portion. The island shielding portion covers the longitudinal sides of the island, the end fixing portion is held inside the end and covered by the end protection bracket, and the two clamping arms are located on the transverse sides of the island shielding portion. When the socket connector is engaged with the plug connector, the clamping arms and the elastic latching portions simultaneously contact the plug protection bracket to shunt in parallel to improve the current-carrying capacity, that is, to achieve high-strength protection and high current-carrying capacity of the socket connector in a smaller space. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a perspective view of a plug connector in a preferred embodiment of the present utility model.
[0017] Figure 2 is Figure 1 a top view of the plug connector shown.
[0018] Figure 3 is Figure 1 a bottom view of the plug connector shown.
[0019] Figure 4 is Figure 1 an exploded view of the plug connector shown.
[0020] Figure 5 is Figure 1 a front view of the plug terminals in the plug connector shown.
[0021] Figure 6 is a top view of a socket connector in a preferred embodiment of the present utility model.
[0022] Figure 7 is Figure 6 an exploded view of the socket connector shown.
[0023] Figure 8 is Figure 7 a perspective view of the socket protection bracket in the socket connector shown.
[0024] Figure 9 isFigure 8 A perspective schematic view of the socket protection bracket shown from another angle.
[0025] Figure 10 is Figure 6 A cross-sectional view of the socket connector shown. Detailed implementation manner
[0026] Please refer to Figures 1 to 10 As shown, a preferred embodiment of the present utility model discloses a board-to-board connector, which includes a plug connector 100 and a socket connector 200 that cooperate with each other. The plug connector 100 includes a longitudinal plug body 10, plug terminals 20 held on the plug body 10, and plug protection brackets 30 located at the longitudinal two ends of the plug body 10. The plug body 10 is provided with two side walls 11 extending longitudinally and two end walls 12 connecting the two side walls 11. The plug terminals 20 are held on the side walls 11, and the plug protection brackets 30 are held on the end walls 12.
[0027] Combined with Figure 5 As shown, the plug terminal 20 includes a first terminal 21 and a second terminal 22 integrally injection-molded on the side wall 11. The first terminals 21 and the second terminals 22 on each side wall 11 are arranged at intervals longitudinally. At the same time, when observing from the same transverse direction of the plug connector 100, the two side walls 11 are respectively provided with the first terminals 21 and the second terminals 22.
[0028] The first terminal 21 is provided with a first inner wall contact portion 211 located on the inner wall surface of the side wall 11, a first outer wall contact portion 212 located on the outer wall surface of the side wall 11, a first connecting portion 213 connecting the top ends of the first inner wall contact portion 211 and the first outer wall contact portion 212, and a first welding portion 214 extending transversely out of the plug body 10 from the bottom of the first inner wall contact portion 211. The first connecting portion 213 is located at the top end of the side wall 11. The first inner wall contact portion 211, the first connecting portion 213, and the first outer wall contact portion 212 together form a first inverted U-shaped portion for contacting the U-shaped elastic portion 52 of the plug terminal 50 of the socket connector 200.
[0029] The second terminal 22 is provided with a second inner wall contact portion 221 located on the inner wall surface of the side wall 11, a second outer wall contact portion 222 located on the outer wall surface of the side wall 11, a second connection portion 223 connecting the tops of the second inner wall contact portion 221 and the second outer wall contact portion 222, and a second welding portion 224 extending transversely inwards from the bottom of the second inner wall contact portion 221. The second connection portion 223 is located at the top of the side wall 11. The second inner wall contact portion 221, the second connection portion 223 and the second outer wall contact portion 222 together form a second inverted U-shaped portion for contacting with the U-shaped elastic portion 52 of the plug terminal 50 of the socket connector 200.
[0030] Further, the first inner wall contact portion 211 has a smooth contact surface, and the first outer wall contact portion 212 has a first contact groove 215; the second outer wall contact portion 222 has a smooth contact surface, and the second inner wall contact portion 221 has a second contact groove 225. At the same time, the first contact groove 215 is located laterally outside the side wall 11, and the second contact groove 225 is located laterally inside the side wall 11. That is, on the same side wall 11, the first contact groove 215 and the second contact groove 225 are respectively arranged on the two lateral sides of the side wall 11 and are staggered longitudinally.
[0031] The first welding portion 214 and the second welding portion 224 on each side wall 11 extend in opposite directions transversely, and the first welding portion 214 and the second welding portion 224 can be fixedly installed on a circuit board (not shown) electrically connected to the plug connector 100; that is, the first welding portion 214 of the first terminal 21 and the second welding portion 224 of the second terminal 22 are respectively located on the two lateral sides of the side wall 11, realizing a bilateral layout of the welding portions of the plug terminal 20 and solving the short-circuit problem when the distance between the plug terminals 20 on the same side is small.
[0032] Specifically, the side wall 11 and the end wall 12 enclose to form a plug slot 13. The plug body 10 is provided with a longitudinal protrusion 130 protruding upwards from the bottom of the plug slot 13 and several openings 131 located on the two lateral sides of the protrusion 130. The openings 131 on both sides of the protrusion 130 are staggered longitudinally, and the second welding portion 224 extends into the openings 131 to facilitate the observation and operation of the second welding portion 224.
[0033] The structures of the first terminal 21 and the second terminal 22 are also different in the following points: the transverse projection of the first connection portion 213 is located on the first welding portion 214, and the transverse projection of the second connection portion 223 is located outside the second welding portion 224. The second terminal 22 is further provided with an embedded portion 226 extending outwardly from the bottom of the second outer wall contact portion 222 along the transverse direction of the plug body 10, the embedded portion 226 is embedded in the side wall 11, and the transverse length of the embedded portion 226 is less than the transverse length of the first welding portion 215.
[0034] The plug protection bracket 30 is integrally injection molded on the end wall 12 and covers the end wall 12 and at least a portion of the side wall 11, thereby improving the strength of the plug body 10 and preventing the plug body 10 from being damaged when the plug connector 100 is plugged in or out. The plug protection bracket 30 is drawn and molded by metal parts and is provided with a top surface shielding portion 31 covering the top surface of the end wall 12, a side shielding portion 32 extending downwardly from both lateral sides of the top surface shielding portion 31 and an outer wall shielding portion 33 extending downwardly from the longitudinal outer side of the top surface shielding portion 32. The side shielding portion 32 at least partially covers the lateral outer wall surface of the end 12, and the outer wall shielding portion 33 covers the longitudinal outer wall surface of the end 12, and the top surface shielding portion 31, the side shielding portion 32 and the outer wall shielding portion 33 are seamlessly connected to each other.
[0035] The plug protection bracket 30 is further provided with an inner wall shielding portion 34 that is bent downward and extends from the longitudinal inner side of the top shielding portion 32, and an extension portion 35 that extends laterally from the bottom edge of the side shielding portion 32. The inner wall shielding portion 34 at least partially covers the longitudinal inner wall surface of the end portion 12 and does not extend outwardly beyond the longitudinal inner wall surface of the end portion 12, and the extension portion 35 can be fixedly mounted on a circuit board (not shown) that is electrically connected to the plug connector 100.
[0036] See also Figures 6 to 10 As shown, the socket connector 200 includes a longitudinally long socket body 40, a socket terminal 50 fixed on the socket body 40, and a socket protection bracket 60 located at both longitudinal ends of the socket body 50. The socket body 40 is provided with a central island portion 41 extending in the longitudinal direction, two side portions 42 located at both lateral sides of the island portion 41, and two end portions 43 connected to the two side portions 42. The island portion 41, the two side portions 42, and the two end portions 43 jointly define a socket slot 44, that is, the island portion 41 is located in the socket slot 44, and the socket slot 44 can be inserted into the plug connector 100.
[0037] Combination Figure 10As shown, the socket terminals 50 are arranged in two rows longitudinally and assembled and fixed on the side portion 42 or the island portion 41 of the socket body 40. In this embodiment, the socket terminals 50 include a forward terminal 501 and a reverse terminal 502 with the same structure, and the forward terminals 501 and the reverse terminals 502 in each row of the socket terminals 50 are arranged at intervals longitudinally. Specifically, the socket terminal 50 is provided with a fixing portion 51 fixed on the side portion 12 or the island portion 11, a U-shaped elastic portion 52 extending from the top of the fixing portion 51 into the socket slot 44, and a welding leg 53 extending transversely from the bottom of the fixing portion 51. The welding leg 53 can be fixedly installed on a circuit board (not shown) electrically connected to the socket connector 200.
[0038] The island portion 41 is provided with a longitudinally extending slot 410 penetrating vertically. The fixing portion 51 of the forward terminal 501 is fixed on the side portion 42, and the welding leg 53 of the forward terminal 501 extends transversely outward from the socket body 40; the fixing portion 51 of the reverse terminal 502 is fixed on the island portion 41, and the welding leg 53 of the reverse terminal 502 extends transversely inward into the slot 410.
[0039] The U-shaped elastic portion 52 is provided with a locking portion 54 on the side adjacent to the fixing portion 51 and a contact arm 55 on the side away from the fixing portion 51. The locking portion 54 protrudes into the socket slot 44. Therefore, the locking portions 54 of the forward terminals 501 and the reverse terminals 502 in each row of the socket terminals 50 are arranged staggeredly longitudinally. When the plug connector 100 is mated with the socket connector 200, the locking portion 54 of the forward terminal 501 is snapped into the first contact groove 215 of the first terminal 21, and the locking portion 54 of the reverse terminal 502 is snapped into the second contact groove 225 of the second terminal 22. The mating of the above plug terminals 20 and socket terminals 50 realizes a structural offset to ensure the pulling force, and at the same time, there is a good feel rate during snapping.
[0040] Combined Figure 8 and Figure 9 As shown, the socket protection bracket 60 includes an end protection bracket 70 fixed on the end portion 43 and an island protection bracket 80 separately provided from the end protection bracket 70, so as to enhance the overall strength of the socket connector 200. The end protection bracket 70 is provided with an integrally formed end reinforcing piece and a side reinforcing piece. The end reinforcing piece covers the end portion 43, and the side reinforcing piece is connected to the transverse two ends of the end reinforcing piece and at least partially covers the side portion 42.
[0041] The end reinforcing piece is provided with an end top plate portion 71 covering the top surface of the end portion 43, an end side plate portion 72 extending downward and bent from the longitudinal outer side of the end top plate portion 71, and elastic clamping portions 73 extending inward from the transverse two sides of the end side plate portion 72. The end side plate portion 72 shields the outer wall surface of the end portion 42 and is provided with an end welding piece 721 at its bottom edge. The end welding piece 721 can be fixedly installed on a circuit board electrically connected to the socket connector 200. The elastic clamping portions 73 extend into the socket slot 44 to clamp the side shielding portion 32 of the plug protection bracket 30 of the plug connector 100.
[0042] The side wall reinforcing piece is provided with a side top plate portion 74 covering the top surface of the side portion 42 and a side side plate portion 75 extending downward and bent from the transverse outer side of the side top plate portion 74. The side top plate portion 74 is connected to the transverse two ends of the end top plate portion 71, and the side side plate portion 75 at least partially shields the outer wall surface of the side portion 42. The end protection bracket 70 is further provided with a guiding portion 76 drawn and formed from the transverse inner sides of the side top plate portion 71 and the end top plate portion 74. The guiding portion 76 extends downward and obliquely into the socket slot 44 for guiding the insertion of the plug connector 100 when the socket connector 200 and the plug connector 100 are plugged together.
[0043] The island protection bracket 80 is provided with a bottom plate portion 81 at the bottom of the socket slot 44, an island shielding portion 82 drawn and formed upward from the longitudinal inner side of the bottom plate portion 81, an end fixing portion 83 bent and extending from the longitudinal outer side of the bottom plate portion 81, two clamping arms 84 extending from the bottom plate portion 81 along the transverse direction to the side portion 42, and two island welding pieces 85 extending from the bottom plate portion 81 along the longitudinal direction outward. The island shielding portion 82 covers the longitudinal two sides of the island portion 41 to enhance the overall strength of the island portion 41. The end fixing portion 83 is held in the end portion 43 and is shielded by the end protection bracket 70. Specifically, the end top plate portion 71 covers the upper part of the end fixing portion 83.
[0044] In the transverse direction, the two clamping arms 84 are located on the transverse two sides of the island shielding portion 82. In the longitudinal direction, the two clamping arms 84 are located on the longitudinal two sides of the socket terminal 50 and inside the longitudinal direction of the elastic clamping portions 73 to clamp the side shielding portion 32 of the plug protection bracket 30 of the plug connector 100. At the same time, the two island welding pieces 85 extend to the transverse two sides of the end welding piece 721, and the island welding pieces 85 and the end welding piece 721 are welded to the same welding pad on the circuit board. Therefore, when the plug connector 100 is mated with the socket connector 200, the clamping arms 84 and the elastic clamping portions 73 contact the plug protection bracket 30 simultaneously to shunt in parallel to improve the current-carrying capacity, that is, to achieve high-strength protection and high current-carrying capacity of the socket connector 200 in a smaller space.
[0045] When the plug connector 100 is mated with the socket connector 200, the first inverted U-shaped portion of the first terminal 21 contacts the U-shaped elastic portion 52 of the forward terminal 501, and the second inverted U-shaped portion of the second terminal 22 contacts the U-shaped elastic portion 52 of the reverse terminal 502; the first contact groove 215 of the first terminal 21 is engaged with the locking portion 54 of the forward terminal 501, and the second contact groove 225 of the second terminal 22 is engaged with the locking portion 54 of the reverse terminal 502; the pulling force required for pulling the board-to-board connector is increased, so that the board-to-board connector will not loosen or have instantaneous breakage abnormalities without being pressed by foam, thereby preventing the problem of detachment in special environments. At the same time, the clamping arm 84 of the socket protection bracket 60 and the elastic clamping portion 73 simultaneously contact the side shielding portion 32 of the plug protection bracket 30 to shunt in parallel to improve the current-carrying capacity, that is, high-strength protection and high current-carrying capacity of the board-to-board connector are achieved in a smaller space.
[0046] In the present utility model, the socket protection bracket 60 further includes an island protection bracket 80 separately provided from the end protection bracket 70. The island protection bracket 80 is provided with a bottom plate portion 81 located at the bottom of the socket slot 44, an island shielding portion 82 drawn upward from the longitudinal inner side of the bottom plate portion 81, an end fixing portion 83 bent and extended from the longitudinal outer side of the bottom plate portion 81, and two clamping arms 84 extending from the bottom plate portion 81 along the transverse direction to the side portion 42. The island shielding portion 82 covers the longitudinal two sides of the island portion 41, the end fixing portion 83 is fixed in the end portion 43 and is covered by the end protection bracket 70, and the two clamping arms 84 are located on the transverse two sides of the island shielding portion 82. When the socket connector 200 is mated with the plug connector 100, the clamping arm 84 and the elastic clamping portion 73 simultaneously contact the plug protection bracket 30 to shunt in parallel to improve the current-carrying capacity, that is, high-strength protection and high current-carrying capacity of the socket connector 200 are achieved in a smaller space.
[0047] In summary, the above is only the preferred embodiment of the present utility model, and the scope of the present utility model should not be limited thereby. That is, all simple equivalent changes and modifications made according to the claims and the content of the specification of the present utility model should still fall within the scope covered by the patent of the present utility model.
Claims
1. A socket connector includes a longitudinally-extended socket body, socket terminals held on the socket body, and socket protection brackets located at two longitudinal ends of the socket body. The socket body is provided with a longitudinally-extended central island portion, two side portions located on transverse two sides of the island portion, and two end portions connecting the two side portions. The island portion, the two side portions, and the two end portions jointly define a socket slot. The socket protection bracket includes an end protection bracket held on the end portion. It is characterized in that: The socket protection bracket further includes an island protection bracket separately provided from the end protection bracket. The island protection bracket is provided with a bottom plate portion located at the bottom of the socket slot, an island shielding portion drawn and formed upward from the longitudinal inner side of the bottom plate portion, an end fixing portion bent and extending from the longitudinal outer side of the bottom plate portion, and two clamping arms extending from the bottom plate portion along the transverse direction to the side portion. The island shielding portion covers the longitudinal two sides of the island portion. The end fixing portion is held within the end portion and covered by the end protection bracket. The two clamping arms are located on the transverse two sides of the island shielding portion.
2. The socket connector according to claim 1, wherein: The socket terminals are arranged in two rows longitudinally and held on the side portion or the island portion. The clamping arms are located on the longitudinal two sides of the socket terminals.
3. The socket connector according to claim 2, wherein: The socket terminals include a forward terminal and a reverse terminal with the same structure. The forward terminals and the reverse terminals in each row of the socket terminals are arranged at intervals longitudinally.
4. The socket connector according to claim 3, characterized in that: The forward terminal is provided with a fixing portion held on the side portion, a U-shaped elastic portion extending from the top of the fixing portion into the socket slot, and a welding leg extending outward along the transverse direction from the bottom of the fixing portion. The reverse terminal is provided with a fixing portion held on the island portion, a U-shaped elastic portion extending from the top of the fixing portion into the socket slot, and a welding leg extending inward along the transverse direction from the bottom of the fixing portion.
5. The socket connector according to claim 4, wherein: The island portion is provided with a longitudinally extending slot penetrating vertically. The welding leg of the forward terminal extends out of the socket body, and the welding leg of the reverse terminal extends into the slot.
6. The socket connector according to claim 1, characterized in that: The end protection bracket is provided with an integrally formed end reinforcing piece and a side reinforcing piece. The end reinforcing piece covers the end portion. The side reinforcing piece is connected to the transverse two ends of the end reinforcing piece and at least partially covers the side portion.
7. The socket connector according to claim 6, characterized in that: The end reinforcing piece is provided with an end top plate portion covering the top surface of the end portion, an end side plate portion bent and extending downward from the longitudinal outer side of the end top plate portion, and elastic clamping portions extending inward from the transverse two sides of the end side plate portion. The end top plate portion covers above the end fixing portion. The end side plate portion shields the outer wall surface of the end portion. The elastic clamping portions extend into the socket slot and are located on the longitudinal outer sides of the clamping arms.
8. The socket connector according to claim 7, characterized in that: The end side plate portion is provided with an end welding piece at the bottom edge. The island protection bracket is provided with two island welding pieces extending outward along the longitudinal direction from the bottom plate portion. The two island welding pieces extend to the transverse two sides of the end welding piece, and the island welding pieces and the end welding piece are welded to the same welding pad.
9. The socket connector according to claim 7, characterized in that: The side reinforcing piece is provided with a side top plate portion covering the top surface of the side portion and a side side plate portion bent and extending downward from the transverse outer side of the side top plate portion. The side top plate portion is connected to the transverse two ends of the end top plate portion, and the side side plate portion at least partially covers the outer wall surface of the side portion.
10. The socket connector according to claim 9, wherein: The end protection bracket is provided with a guiding portion drawn and formed from the transverse inner sides of the side top plate portion and the end top plate portion. The guiding portion extends downward and obliquely into the socket slot.