Board end, wire end and assembly of a small-sized high-current power supply connector

Abstract

The utility model provides a kind of plate end, line end and assembly of small-sized large current power connector, including plate end shell, first insulator, the first insulator includes frame body and is located the suction plane part of frame body one side;The inside of frame body is equipped with conductor groove, plate end conductor is equipped in the conductor groove, plate end conductor is bent to form recessed structure, the depth direction of recessed structure is along the vertical direction of the plane where frame body is located and sinks, line end includes second insulator and line end shell, the second insulator includes insertion part and the connecting plane part for wire placement, the insertion part protrudes from the plane of the connecting plane part opposite side, assembly includes plate end and line end each other insertion, the plate end and line end connector of case use upper and lower insertion method, reduce the space on length, further reduce the size of connector, and more conducive to the assembly of automation equipment, improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and more particularly to the board end, wire end and assembly of a small high-current power connector. Background Technology

[0002] Power connectors are typically found on the motherboards of electronic devices. These connectors connect to components such as hard drives, processors, motherboards, and graphics cards, providing power to them. As computer mainframes become increasingly smaller, the specifications of power connectors also need to be minimized. Current power connectors are all side-fitting, as shown in CN207134502 U and CN 111463615 A. This side-fitting design increases space requirements in the length and width directions during mating. Furthermore, current connector assembly requires fully automated assembly. Most connectors cannot be picked up and assembled by automated equipment; robotic arms cannot currently perform mating. Achieving this requires precise alignment of all pins, demanding sophisticated algorithms and complex implementation. In addition, due to the miniaturization of the overall structure, connector lengths are typically less than 15mm, resulting in terminal widths of less than 0.5mm, which easily leads to poor contact during mating. Utility Model Content

[0003] To solve the above technical problems, this utility model proposes a board end of a small high-current power connector, including a board end shell and a first insulator, wherein the first insulator includes a frame-shaped body and an absorption plane portion located on one side of the frame-shaped body;

[0004] The inner side of the frame body is provided with a conductor groove, and a plate end conductor is provided in the conductor groove. The plate end conductor is bent to form a recessed structure. The depth direction of the recessed structure is recessed in the direction perpendicular to the plane where the frame body is located, and fits into the groove of the conductor groove. When it is inserted with the wire end, the opposite sides of the recessed structure contact the conductor of the wire end respectively.

[0005] Preferably, one side of the recessed structure of the plate end conductor is integrally formed with a curved section, one end of which is the horizontal part of the plate end and extends from the bottom of the frame-shaped body.

[0006] Preferably, the side of the conductor groove closest to the absorption plane protrudes from the plane of the frame-shaped body.

[0007] Preferably, the recessed structure is U-shaped, or the bottom of the recessed structure is a plane, and the bottom of the recessed structure is in electrical contact with the circuit board.

[0008] Preferably, the recessed structure has a protrusion on its inner side and an elastic foot pointing to the opposite side on the other side.

[0009] Preferably, the conductor groove includes at least one first groove and at least one second groove located on both sides of the first groove, and the plate end conductors with different functions are disposed in the first groove and the second groove.

[0010] Preferably, the opposing sidewalls between the first tanks are provided with partition strips.

[0011] Preferably, the side wall of the frame-shaped body is provided with several protrusions, the plate end housing is provided with positioning holes, the protrusions are engaged in the positioning holes, the plate end housing covers the side wall of the frame-shaped body, and the side of the plate end housing is also provided with locking holes.

[0012] Preferably, guide openings are provided between the conductor groove and the frame body on both sides along the length direction.

[0013] This utility model proposes a wire end of a small high-current power connector, including a second insulator and a wire end housing. The wire end housing is provided with a pull strap. The second insulator includes a mating part and a connecting plane part for connecting with a wire. The mating part protrudes from the plane opposite to the connecting plane part. The side of the mating part is provided with a positioning groove that is recessed in the opposite direction to the protrusion direction of the mating part. A wire end conductor is attached to the surface of the mating part and the positioning groove. The surface of the wire end conductor located on the opposite side of the mating part is provided with a recessed groove. When mated with the board end, the opposite sides of the wire end conductor are in electrical contact with the board end conductor.

[0014] Preferably, the wire end conductor includes a U-shaped portion, the U-shaped portion corresponds to the insertion portion, one end of the U-shaped portion is provided with a horizontal portion, and the two sides of the U-shaped portion are provided with recessed positions.

[0015] Preferably, the wire end housing has at least one bent locking foot at each of its four corners, the bent locking foot being fastened to the edge of the second insulator, and the wire end housing has positioning locking feet at both ends.

[0016] Preferably, guide blocks are provided at both ends of the insertion portion of the second insulator.

[0017] This utility model proposes a small high-current power connector assembly, including a board-end connector and a wire-end connector as described above. The wire end is inserted into the board-end connector in a plane direction perpendicular to the plane where the board-end connector is located. The insertion part of the wire end connector is inserted into the recessed structure formed by the conductor bending of the board-end connector. At least two surfaces of the wire end conductor are in contact with the board end conductor.

[0018] Preferably, the positioning pin of the wire end connector is engaged in the locking hole on the side of the board end housing of the board end connector.

[0019] The board-end connector, wire end, and their assembly of the small high-current power connector proposed in this utility model have the following beneficial effects: The board-end and wire-end connectors of this invention use an upper and lower mating method, which reduces the space in length, further reduces the size of the connector, and is more conducive to the assembly of automated equipment, improving assembly efficiency. In addition, the terminals used in the upper and lower mating method are specially designed with multi-faceted contact of the terminals, and the small displacement of the spring can also achieve small contact resistance and stability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0021] Figure 1 This is a three-dimensional schematic diagram of the board-end connector of this utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the first insulator of this utility model;

[0023] Figure 3 This is a schematic diagram showing the connection between the first insulator and the plate end conductor of this utility model;

[0024] Figure 4 This is a schematic diagram of the plate end conductor of this utility model;

[0025] Figure 5 This is a schematic diagram of the plate end shell of this utility model;

[0026] Figure 6 This is a three-dimensional schematic diagram of the wire end connector of this utility model;

[0027] Figure 7 This is a three-dimensional schematic diagram of the second insulator of this utility model;

[0028] Figure 8 This is a schematic diagram of the wire end housing of this utility model;

[0029] Figure 9 This is a schematic diagram of the wire end conductor of this utility model;

[0030] Figure 10 This is an assembly drawing showing the connection between the board-end connector and the wire-end connector of this utility model;

[0031] Figure 11 This is a cross-sectional view of the connection between the board-end connector and the wire-end connector of this utility model.

[0032] The components are as follows: 1. Plate end shell; 2. First insulator; 3. Frame-shaped body; 4. Conductor groove; 41. First groove; 42. Second groove; 5. Plate end conductor; 6. Recessed structure; 7. Bending section; 8. Plate end horizontal part; 9. Bottom of recessed structure; 10. Protrusion; 11. Elastic foot; 12. Separator strip; 13. Protrusion; 14. Positioning hole; 15. Locking hole; 16. Second insulator; 17. Wire end shell; 18. Insertion part; 19. Wire end conductor; 20. Recessed groove; 21. U-shaped part; 22. Recessed position; 23. Wire end horizontal part; 24. Bending clip; 25. Positioning clip; 26. Guide block; 27. Guide opening; 28. Suction plane part; 29. ​​Connecting plane part; 30. Wire end; 31. Plate end; 32. Wire; 33. Pull strap. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this utility model proposes a board-end connector 31 for a small high-current power connector. The board-end connector 31 is the end that connects to the motherboard. It includes a board-end housing 1 and a first insulator 2. The first insulator 2 includes a frame-shaped body 3 and an absorption flat portion 28 located on one side of the frame-shaped body 3. Since the connector is very small in size, with a length of about 10mm, the first insulator 2 is also very small. When the terminal passes through the frame-shaped body 3, it passes through the bottom part, unlike the traditional method of slotting the frame-shaped body 3. In this way, the frame-shaped body 3 can be a solid design to increase the strength of the frame-shaped body 3. At the same time, the board-end housing 1 can be completely covered on the outside of the frame-shaped body 3 and reinforced with an iron shell. The product strength is increased several times, and there is no risk of breakage. There is no risk of warping after IR. To increase the connection between the plate end housing 1 and the first insulator 2, the side wall of the frame-shaped body 3 is provided with several protrusions 13, and the plate end housing 1 is provided with positioning holes 14. The protrusions 13 are engaged in the positioning holes 14. The plate end housing 1 covers the side wall of the frame-shaped body 3. The side of the plate end housing 1 is also provided with locking holes 15, which are used to lock the two when connected with the wire end connector 30. The specific structure is further described below in the section on the wire end connector 30. The suction plane 28 involved in this embodiment corresponds to the wire end connector 30 and is also used in automated production lines for the suction device to suction the suction plane 28, so as to solve the problem in the prior art that small power connectors cannot be gripped and a separate suction position is required, which facilitates the realization of automated assembly.

[0035] like Figure 2As shown, in this case, a conductor groove 4 is provided inside the frame-shaped body 3. The conductor groove 4 has protrusions extending beyond the frame-shaped body 3 in both length directions, forming a depth. A plate-end conductor 5 is provided within the conductor groove 4. The plate-end conductor 5 is used for connection to the motherboard and electrical connection to the wire-end conductor 19. The depth formed by the frame-shaped body 3 can accommodate the U-shaped structure of the plate-end conductor 5, which can also be called a terminal or gold finger, etc. Specifically, such as... Figure 4 As shown, this connector mainly includes two types of board-end conductors 5: one is a signal terminal and the other is a power terminal. The signal terminal is thinner overall, while the power terminal is wider. Their main shapes are similar. Similarly, the conductor groove 4 includes at least one first groove 41 and at least one second groove 42 located on both sides of the first groove 41. The board-end conductors 5 with different functions are arranged in the first groove 41 and the second groove 42. That is, the board end conductor 5 is bent to form a recessed structure 6. The depth direction of the recessed structure 6 is recessed along the vertical direction of the plane where the frame-shaped body 3 is located, and fits into the groove of the conductor groove 4. In this embodiment, the board end conductor 5 forms a U-shaped structure in the conductor groove 4, but other similar structures such as V-shape and trapezoid are also similar structures, which will not be listed one by one in this embodiment. For the U-shaped board end conductor 5, the bottom passes through the conductor groove 4 and is electrically connected to the main board. The inner side of the recessed structure 6 is provided with a protrusion 10, and the other side is a flexible foot 11 pointing to the opposite side. The recessed structure 6 has different degrees of curvature for signal terminals and power terminals. Since the signal terminals are relatively thin, the flexible foot 11 has a greater curvature to ensure stable connection with the connector 30. The power terminals have a protrusion 10 on one side of the recessed structure 6 to increase contact with the conductor 19 and improve connection stability.

[0036] When the recessed structure 6 is inserted into the wire connector 30, the opposite sides of the recessed structure 6 contact the conductor of the wire connector 30.

[0037] like Figure 4 As shown, the recessed structure 6 of the aforementioned board-end conductor 5 is U-shaped. A curved section 7 is integrally formed on one side of the U-shaped structure. The curved section 7 is U-shaped and is connected to the horizontal part 8 of the board-end connector 31 at one end. The curved section 7 extends from the bottom of the frame-shaped body 3 and is completely set in the dividing strip 12 at the edge of the conductor groove 4. The dividing strip 12 is used to separate and position different board-end conductors 5. The free end of the board-end conductor extends from the bottom of the conductor groove 4 (i.e., the frame-shaped body 3) and can be connected to the main board.

[0038] Finally, guide openings 27 are provided between the conductor groove 4 and the frame body 3 on both sides along the length direction, which are suitable for guiding the connection when connected to the wire connector 30, as described in further detail below.

[0039] In this embodiment, for the aforementioned board-end connector 31, as follows: Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a small high-current power connector with a wire end is also proposed, including a second insulator 16 and a wire end housing 17. The wire end housing 17 is provided with a pull strap 33, which is sleeved on the wire end housing 17 and located between the wire end housing 17 and the second insulator 16. The pull strap 33 is used for pulling the connector during insertion and removal; pulling the pull strap 33 allows for insertion and removal. The second insulator 16 includes an insertion portion 18 and a connecting plane portion 29 for placing the wire 32. The wire end housing 17 covers the upper part of the second insulator 16 but does not cover the connecting plane portion 29. The connecting plane portion 29 corresponds to the suction plane portion 28 of the board-end connector 31. When the two are in place, they fit together. In order to ensure a stable connection between the wire end housing 17 and the second insulator 16, at least one bent locking foot 24 is provided at each of the four corners of the wire end housing 17. The bent locking foot 24 is fastened to the edge of the second insulator 16. In this embodiment, 2-3 sets of bent locking feet 24 are provided on the edge of the second insulator body to cover and lock the edge of the second insulator 16. The two ends of the wire end housing 17 are respectively provided with positioning locking feet 25. The positioning locking feet 25 are bent to the opposite side to form a certain elasticity. When the locking holes 15 on the corresponding plate end housing 1 are inserted, the positioning locking feet 25 can press against the locking holes 15 to increase the degree of connection between the two.

[0040] The mating part 18 protrudes from the plane opposite to the connecting plane part 29. The mating part 18 has a positioning groove on its side that is recessed in the opposite direction to the protrusion direction of the mating part 18. A wire end conductor 19 is attached to the surface of the mating part 18 and the positioning groove. The wire end conductor 19 is U-shaped. The U-shaped part 21 corresponds to the mating part 18. The bottom of the U-shaped part 21 is attached to the bottom of the plate end conductor 5. One end of the U-shaped part 21 is provided with a horizontal wire end part 23. The horizontal wire end part 23 extends out of the second insulator 16 and extends on the connecting plane for electrical connection with the wire 32.

[0041] The surface of the wire end conductor 19 located on the opposite side of the insertion part 18 is provided with a recessed groove 20. When it is inserted with the board end connector 31, the opposite side of the wire end conductor 19 is in electrical contact with the board end conductor 5. Specifically, the wire end conductor 19 on the insertion part 18 is inserted into the conductor groove 4 of the board end, and the U-shaped part 21 of the wire end conductor 19 is inserted into the U-shaped structure of the board end conductor 5. Due to the U-shaped structure, the bottom is in contact with the board end conductor. At the same time, the two sides of the recessed structure 6 of the board end conductor 5 are in contact with two positions of the wire end connector 30, namely positions A and B in the figure. In order to increase the connection stability, recessed positions 22 are provided on both sides of the wire end connector 30. When the protrusions 10 and spring feet provided on both sides of the board end conductor 5 are inserted, they abut against the recessed positions 22 to prevent displacement.

[0042] like Figure 10 , Figure 11 As shown, this utility model proposes a small high-current power connector assembly, including a board-end connector 31 and a wire-end connector 30 as described above. The wire-end connector 30 is inserted into the board-end connector 31 in a vertical direction. That is, after the board-end connector 31 is electrically connected to the motherboard, with the motherboard as the horizontal plane, the wire-end connector 30 is inserted vertically to the motherboard. This ensures that more space is reduced in the horizontal length direction and is more conducive to automated assembly. In addition, the guide block 26 and guide port 27 provided by the board-end connector 31 and the wire-end connector 30 can accurately align the two to achieve automated assembly.

[0043] When the board connector 31 and the wire connector 30 are mated, the mating part 18 of the wire connector 30 is inserted into the recessed structure 6 formed by the conductor bending of the board connector 31. At least two surfaces of the wire conductor 19 are in contact with the board conductor 5. For miniature connectors, stable contact can be ensured even in a narrow space. The design of multi-point contact and the small displacement of the spring can also achieve small contact resistance and stability.

Claims

1. A board terminal for a small, high-current power connector, characterized in that, It includes a plate end housing (1) and a first insulator (2), the first insulator (2) including a frame-shaped body (3) and an absorption plane portion (28) located on one side of the frame-shaped body (3); The inner side of the frame-shaped body (3) is provided with a conductor groove (4), and a plate end conductor (5) is provided in the conductor groove (4). The plate end conductor (5) is bent to form a recessed structure (6). The depth direction of the recessed structure (6) is recessed along the vertical direction of the plane where the frame-shaped body (3) is located, and fits into the groove of the conductor groove (4). When it is inserted with the wire end connector, the opposite sides of the recessed structure (6) contact the conductor of the wire end connector respectively.

2. The board end of the small high-current power connector according to claim 1, characterized in that, A curved section (7) is integrally formed on one side of the recessed structure (6) of the plate end conductor (5), one end of which is the horizontal part (8) of the plate end connector (31) and extends from the bottom of the frame body (3).

3. The board end of the small high-current power connector according to claim 1, characterized in that, The conductor groove (4) protrudes from the plane of the frame body (3) near the absorption plane (28).

4. The board end of the small high-current power connector according to claim 1, characterized in that, The recessed structure (6) is U-shaped, or the bottom of the recessed structure (6) is flat, and the bottom of the recessed structure (6) is in electrical contact with the circuit board.

5. The board end of the small high-current power connector according to claim 1 or 4, characterized in that, The recessed structure (6) has a protrusion (10) on its inner side and an elastic foot (11) pointing to the opposite side on its other side.

6. The board end of the small high-current power connector according to claim 1, characterized in that, The conductor groove (4) includes at least one first groove (41) and at least one second groove (42) located on both sides of the first groove (41), and the plate end conductors (5) with different functions are provided in the first groove (41) and the second groove (42).

7. The board end of the small high-current power connector according to claim 6, characterized in that, Separating strips (12) are provided on the opposite sidewalls between the first trough bodies (41).

8. The board end of the small high-current power connector according to claim 1, characterized in that, The frame-shaped body (3) has several protrusions (13) on its side wall, and the plate end housing (1) has a positioning hole (14). The protrusions (13) are locked in the positioning hole (14). The plate end housing (1) covers the side wall of the frame-shaped body (3). The plate end housing (1) also has a locking hole (15) on its side.

9. The board end of the small high-current power connector according to claim 1, characterized in that, The conductor groove (4) has guide openings (27) on both sides along its length direction between it and the frame body (3).

10. A wire end of a small high-current power connector, comprising a second insulator (16) and a wire end housing (17), wherein the wire end housing (17) is provided with a pull strap (33), characterized in that, The second insulator (16) includes a mating part (18) and a connecting plane part (29) for placing a wire (32). The mating part (18) protrudes from the plane opposite to the connecting plane part (29). The mating part (18) has a positioning groove on its side that is recessed in the opposite direction to the protrusion direction of the mating part (18). A wire end conductor (19) is attached to the surface of the mating part (18) and the positioning groove. The surface of the wire end conductor (19) located on the opposite side of the mating part (18) has a recessed groove (20). When it is mated with the board end connector (31), the opposite sides of the wire end conductor (19) are in electrical contact with the board end conductor (5).

11. The wire terminals of the miniature high-current power connector according to claim 10, characterized in that, The wire end conductor (19) includes a U-shaped part (21), which corresponds to the insertion part (18). One end of the U-shaped part (21) is provided with a horizontal part (23), and the two sides of the U-shaped part (21) are provided with recessed positions (22).

12. The wire end of the miniature high-current power connector according to claim 10, characterized in that, The wire end housing (17) has at least one bent clip (24) at each of its four corners. The bent clip (24) is fastened to the edge of the second insulator (16). The wire end housing (17) has positioning clips (25) at both ends.

13. The wire end of the miniature high-current power connector according to claim 10, characterized in that, The second insulator (16) has guide blocks (26) at both ends of the insertion part (18).

14. A small high-current power connector assembly, characterized in that, Includes a board-end connector (31) as described in any one of claims 1 to 9 and a wire-end connector (30) as described in any one of claims 10 to 13, wherein the wire-end connector (30) is inserted into the board-end connector (31) in a direction perpendicular to the plane in which the board-end connector (31) is located, the insertion portion (18) of the wire-end connector (30) is inserted into the recessed structure (6) formed by the conductor bending of the board-end connector (31), and at least two surfaces of the wire-end conductor (19) are in contact with the board-end conductor (5).

15. The small high-current power connector assembly according to claim 14, characterized in that, The positioning pin (25) of the wire connector (30) is engaged in the locking hole (15) on the side of the plate end housing (1) of the plate end connector (31).

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