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

Abstract

The invention provides a board end connector, a line end connector and an assembly of a small large-current power supply connector. The board end connector and the line end connector comprise a board end shell and a first insulator, and the first insulator comprises a frame-shaped body and an absorption plane part located on one side of the frame-shaped body; a conductor groove is formed in the inner side of the frame-shaped body, a plate end conductor is arranged in the conductor groove, the plate end conductor is bent to form a sunken structure, the depth direction of the sunken structure is sunken in the vertical direction of the plane where the frame-shaped body is located, and the wire end comprises a second insulator and a wire end shell. The second insulator comprises an inserting part and a connecting plane part used for placing a wire, the inserting part protrudes out of a plane on the opposite side of the connecting plane part, the assembly comprises a plate end and a wire end which are mutually inserted, the plate end and the wire end connector of the scheme adopt an up-down inserting method, the space in the length direction is reduced, and the assembling efficiency is improved. The size of the connector is further reduced, the assembly of automatic equipment is facilitated, and the assembly efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of connectors, and in particular to a board-end connector, a wire end and an assembly thereof of a small-sized high-current power connector. Background Art

[0002] A power connector is set on the motherboard of the electronic device, and the hard disk, processor, motherboard, and graphics card are connected through the power connector, and then the hard disk, processor, motherboard, and graphics card are powered. With the development of increasingly miniaturized computer hosts at this stage, the specifications of the power connector are also required to be smaller and smaller. The current power connectors are all plugged in sideways, such as the power connector terminal and power connector disclosed in CN207134502 U, or the power connector terminal and power connector disclosed in CN 111463615 A, which are all plugged in sideways. When plugged in, the space will be increased in the length or width direction. In addition, the assembly of existing connectors requires fully automated assembly, and most connectors cannot be absorbed and assembled by automated equipment. The manipulator cannot achieve plugging at this stage. To achieve this, all pins need to be aligned, and the algorithm requirements are high, and the implementation is cumbersome. In addition, due to the small overall structure, the connector length is about 15mm or less, and the width of the terminal is only 0.5mm or less, which can easily cause the problem of poor contact of the terminal during docking. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a board-end connector of a small-sized high-current power connector, comprising a board-end housing, a first insulator, wherein the first insulator comprises a frame-shaped body and an absorption plane portion located on one side of the frame-shaped body;

[0004] A conductor slot is provided inside the frame-shaped body, a plate end conductor is provided inside the conductor slot, the plate end conductor is bent to form a recessed structure, the depth direction of the recessed structure is sunken along the vertical direction of the plane where the frame-shaped body is located, and fits into the groove body of the conductor slot; when plugged with the wire end, the opposite sides of the recessed structure are in contact with the conductor of the wire end respectively.

[0005] Preferably, a bending section is integrally formed on one side of the recessed structure of the plate-end conductor, and one end of the bending section is a plate-end horizontal portion extending from the bottom of the frame-shaped body.

[0006] Preferably, a side of the conductor slot close to the absorption plane portion protrudes from the plane where the frame-shaped body is located.

[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, a convex point is provided on the inner side of the recessed structure, and the other side is an elastic foot pointing to the opposite side.

[0009] Preferably, the conductor slot comprises at least one first slot body and at least one second slot body located on both sides of the first slot body, and the board end conductors with different functions are arranged in the first slot body and the second slot body.

[0010] Preferably, partition strips are provided on the opposite side walls of the first trough bodies.

[0011] Preferably, the side wall of the frame-shaped body is provided with a plurality of protrusions, the plate end shell is provided with a positioning hole, the protrusions are stuck in the positioning hole, the plate end shell covers the side wall of the frame-shaped body, and the side of the plate end shell is also provided with a locking hole.

[0012] Preferably, guide openings are provided between the frame-shaped body and both sides of the conductor slot in the length direction.

[0013] The present invention proposes a wire end connector of a small-sized high-current power connector, comprising a second insulator and a wire end shell, the wire end shell being provided with a draw tape, the second insulator comprising an inserting portion and a connecting plane portion for connecting to a wire, the inserting portion protruding from a plane on the opposite side of the connecting plane portion, a side edge of the inserting portion being provided with a positioning groove recessed in the opposite direction to the protruding direction of the inserting portion, a wire end conductor being fitted on the surface of the inserting portion and the positioning groove, a recessed groove being provided on the surface of the wire end conductor on the opposite side of the inserting portion, and when inserted with a board end, the opposite sides of the wire end conductor are respectively in electrical contact with the board end conductor.

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

[0015] Preferably, at least one bent clamping pin is provided on the four corners of the wire end housing, the bent clamping pin is buckled on the edge of the second insulator, and positioning clamping pins are respectively provided at both ends of the wire end housing.

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

[0017] The present invention proposes a small-sized high-current power connector assembly, comprising a board-end connector and a wire-end connector as described above, wherein the wire end is plugged into the board-end connector in a direction perpendicular to the plane where the board-end connector is located, and the plug-in portion of the wire-end connector is inserted into a recessed structure formed by bending the conductor of the board-end connector, and at least two surfaces of the wire-end conductor are in contact with the board-end conductor.

[0018] Preferably, the positioning pin of the line-end connector is clamped in a locking hole on a side of a board-end housing of the board-end connector.

[0019] The board-end connector, wire end and assembly of the small high-current power connector proposed in the present invention have the following beneficial effects: the board-end and wire-end connectors of this case use an up-and-down plug-in method to reduce the length space, further reduce the size of the connector, and are more conducive to the assembly of automated equipment and improve assembly efficiency. In addition, the terminals used in an up-and-down combination manner are specially provided with multi-sided contacts of the terminals, and a small displacement of the spring can also achieve small contact impedance and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0021] Figure 1 It is a three-dimensional schematic diagram of the board-end connector of the present invention;

[0022] Figure 2 is a three-dimensional schematic diagram of a first insulator of the present invention;

[0023] Figure 3 It is a schematic diagram of the connection between the first insulator and the plate end conductor of the present invention;

[0024] Figure 4 is a schematic diagram of a plate end conductor of the present invention;

[0025] Figure 5 is a schematic diagram of a plate end housing of the present invention;

[0026] Figure 6 is a three-dimensional schematic diagram of a wire end connector of the present invention;

[0027] Figure 7 is a three-dimensional schematic diagram of a second insulator of the present invention;

[0028] Figure 8 is a schematic diagram of a wire end housing of the present invention;

[0029] Fig. 9 is a schematic diagram of a line end conductor of the present invention;

[0030] Fig.10 It is an assembly diagram of the board-end connector and the line-end connector of the present invention;

[0031] Fig.11 A cross-sectional view showing the connection between the board-end connector and the line-end connector of the present invention;

[0032] Among them, 1. board end shell; 2. first insulator; 3. frame-shaped body; 4. conductor slot; 41. first slot body; 42. second slot body; 5. board end conductor; 6. recessed structure; 7. bending section; 8. board end horizontal part; 9. bottom of recessed structure; 10. convex point; 11. elastic foot; 12. dividing strip; 13. protrusion; 14. positioning hole; 15. locking hole; 16. second insulator; 17. wire end shell; 18. plug-in part; 19. wire end conductor; 20. recessed slot position; 21. U-shaped part; 22. recessed position; 23. wire end horizontal part; 24. bending foot; 25. positioning foot; 26. guide block; 27. guide mouth; 28. suction plane part; 29. ​​connection plane part; 30. wire end; 31. board end; 32. wire; 33. pull tape. DETAILED DESCRIPTION

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

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the present invention proposes a board-end connector 31 of a small high-current power connector, the board-end connector 31 is one end connected to the mainboard, including a board-end shell 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. Since the volume of the connector is very small and the length is about 10 mm, the first insulator 2 is also very small. When the terminal passes through the frame-shaped body 3, it passes through the lower part, and is not grooved on the frame-shaped body 3 as traditionally. 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 shell 1 can be completely covered on the outside of the frame-shaped body 3, and the periphery can be reinforced with an iron shell, so that the product strength is increased several times, there is no risk of breakage, and there is no risk of warping after IR. In order to increase the connection between the board end shell 1 and the first insulator 2, the side wall of the frame-shaped body 3 is provided with a plurality of protrusions 13, and the board end shell 1 is provided with a positioning hole 14, and the protrusion 13 is stuck in the positioning hole 14. The board end shell 1 covers the side wall of the frame-shaped body 3. The side of the board end shell 1 is also provided with a locking hole 15, and the locking hole 15 is used to lock the two when connected with the line end connector 30. The specific structure is further described in the line end connector 30 below. The suction plane part 28 involved in this embodiment corresponds to the line end connector 30, and is also used for the suction device to suck the suction plane part 28 during the automated production line, so as to solve the problem in the prior art that the small power connector cannot be grasped, and a separate suction position needs to be made to facilitate the realization of automated assembly.

[0035] like Figure 2As shown, in this case, a conductor slot 4 is provided inside the frame-shaped body 3, and protrusions protrude from the frame-shaped body 3 in two length directions of the conductor slot 4 to form a depth. A board-end conductor 5 is provided in the conductor slot 4. The board-end conductor 5 is used to achieve connection with the main board and electrical connection with the line-end conductor 19. The depth formed by the frame-shaped body 3 can accommodate the U-shaped structure of the board-end conductor 5, which can also be called a terminal or a gold finger, etc. Specifically, as Figure 4 As shown, the 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, and the power terminal is wider. Their main shapes are similar. Similarly, the conductor slot 4 includes at least one first slot body 41 and at least one second slot body 42 located on both sides of the first slot body 41. The board-end conductors 5 with different functions are arranged in the first slot body 41 and the second slot body 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 sunken along the vertical direction of the plane where the frame-shaped body 3 is located, and fits into the groove body of the conductor groove 4; in this embodiment, the board-end conductor 5 is in a U-shaped structure in the conductor groove 4, but other similar structures such as V-shaped, trapezoidal, etc. are similar structures, which are not listed one by one in this embodiment. For the board-end conductor 5 of the U-shaped structure, the bottom passes through the conductor groove 4 and is electrically connected to the main board, and a convex point 10 is provided on the inner side of the recessed structure 6, and the other side is an elastic foot 11 pointing to the opposite side. The recessed structure 6 has different curvatures for the signal terminal and the power terminal. Since the signal terminal is relatively thin, in order to ensure stable connection with the line-end connector 30, the curvature of the elastic foot 11 is greater. The power terminal is provided with a convex point 10 on one side of the recessed structure 6 to increase contact with the line-end conductor 19 and improve connection stability.

[0036] When plugged into the line end connector 30 , opposite sides of the recessed structure 6 are in contact with the conductors of the line end connector 30 .

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

[0038] Finally, guide openings 27 are provided between the two sides of the conductor slot 4 in the length direction and the frame-shaped body 3, which are suitable for guiding the connection with the line end connector 30, as will be described in detail below.

[0039] In this embodiment, for the board-side connector 31, as shown in FIG. Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, a wire end connector of a small-sized high-current power connector is also proposed, including a second insulator 16 and a wire end housing 17, wherein a drawstring 33 is provided on the wire end housing 17, and the drawstring 33 is sleeved on the wire end housing 17 and is located between the wire end housing 17 and the second insulator 16, and the drawstring 33 is used as a pulling part for plugging and unplugging the connector, and the drawstring 33 can be pulled when plugging and unplugging, and the second insulator 16 includes an insertion portion 18 and a connection plane portion 29 for placing a wire 32, and the wire end housing 17 covers the upper part of the second insulator 16, but does not cover the connection plane portion 29, and the connection plane portion 29 corresponds to the suction plane portion 28 of the board-end connector 31, and the plug-in When they are combined, the two fit together, and in order to ensure that the connection between the wire end housing 17 and the second insulator 16 is stable, at least one bent clamping pin 24 is provided on the four corners of the wire end housing 17, and the bent clamping pin 24 is buckled on the edge of the second insulator 16. In this embodiment, 2-3 groups of bent clamping pins 24 are provided on the edge of the second insulating body to cover and clamp the edge of the second insulator 16. Positioning clamping pins 25 are respectively provided at both ends of the wire end housing 17. The positioning clamping pins 25 are bent toward the opposite side to form a certain elasticity, and the locking holes 15 on the corresponding plate end housing 1 can be pressed against the locking holes 15 when inserted up and down to increase the degree of combination between the two.

[0040] The plug-in portion 18 protrudes from the plane on the opposite side of the connecting plane portion 29, and a positioning groove is provided on the side of the plug-in portion 18, which is recessed in the opposite direction to the protruding direction of the plug-in portion 18. The plug-in portion 18 and the surface of the positioning groove are fitted with a wire end conductor 19, and the shape of the wire end conductor 19 is U-shaped. The U-shaped portion 21 corresponds to the plug-in portion 18, and the bottom of the U-shaped portion 21 is fitted with the bottom of the board end conductor 5. A wire end horizontal portion 23 is provided at one end of the U-shaped portion 21, and the wire end horizontal portion 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 line-end conductor 19 located on the opposite side of the plug-in portion 18 is provided with a recessed groove 20. When plugged with the board-end connector 31, the opposite sides of the line-end conductor 19 are electrically contacted with the board-end conductor 5 respectively. Specifically, the line-end conductor 19 on the plug-in portion 18 is inserted into the conductor groove 4 of the board end, and the U-shaped portion 21 of the line-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 moved 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 line-end connector 30, namely positions A and B in the figure. In order to increase the connection stability, recessed positions 22 are set on both sides of the line-end connector 30. When the protrusions 10 and the spring feet set on both sides of the board-end conductor 5 are plugged in, they are pressed against the recessed positions 22 to prevent retreat.

[0042] like Fig.10 , Fig.11 As shown, the present invention proposes a small-sized high-current power connector assembly, including the aforementioned board-end connector 31 and the line-end connector 30, wherein the line-end connector 30 is plugged into the board-end connector 31 in the direction, that is, after the board-end connector 31 is electrically connected to the mainboard, the mainboard is used as the horizontal plane, and then the line-end connector 30 is plugged into the board-end connector 31 in the direction perpendicular to the mainboard, thereby ensuring that more space is reduced in the horizontal length direction and is more conducive to automated assembly. In addition, the guide blocks 26 and guide ports 27 provided on the board-end connector 31 and the line-end connector 30 can accurately align the two to achieve automated assembly.

[0043] When the board-end connector 31 and the line-end connector 30 are plugged in, the plug-in portion 18 of the line-end connector 30 is inserted into the recessed structure 6 formed by the bending of the conductor of the board-end connector 31, and at least two surfaces of the line-end conductor 19 are in contact with the board-end conductor 5. For miniature connectors, stable contact can be guaranteed in a small space. By designing multi-point contact, a small displacement of the spring can also achieve small contact impedance and stability.

Claims

1. A board-end connector of a small high-current power connector, characterized in that: It comprises a plate end shell (1) and a first insulator (2), wherein the first insulator (2) comprises a frame-shaped body (3) and an absorption plane portion (28) located on one side of the frame-shaped body (3); A conductor slot (4) is provided on the inner side of the frame-shaped body (3), a board-end conductor (5) is provided in the conductor slot (4), the board-end conductor (5) is bent to form a recessed structure (6), the depth direction of the recessed structure (6) is sunken along the vertical direction of the plane where the frame-shaped body (3) is located, and is fitted in the groove body of the conductor slot (4); when plugged into a line-end connector, the opposite sides of the recessed structure (6) are respectively in contact with the conductor of the line-end connector.

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

3. The board end connector of the small-sized high-current power connector according to claim 1, characterized in that: One side of the conductor slot (4) close to the absorption plane portion (28) protrudes from the plane where the frame-shaped body (3) is located.

4. The board end connector of the small-sized 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 a plane, and the bottom of the recessed structure (6) is in electrical contact with the circuit board.

5. The board end connector of the small-sized high-current power connector according to claim 1 or 4, characterized in that: A convex point (10) is provided on the inner side of the recessed structure (6), and an elastic foot (11) pointing to the opposite side is provided on the other side.

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

7. The board end connector of the small-sized high-current power connector according to claim 5, characterized in that: Partition strips (12) are provided on the opposite side walls of the first trough bodies (41).

8. The board end connector of the small-sized high-current power connector according to claim 1, characterized in that: The side wall of the frame-shaped body (3) is provided with a plurality of protrusions (13); the plate end shell (1) is provided with a positioning hole (14); the protrusions (13) are locked in the positioning hole (14); the plate end shell (1) covers the side wall of the frame-shaped body (3); and the side of the plate end shell (1) is also provided with a locking hole (15).

9. The board end connector of the small-sized high-current power connector according to claim 1, characterized in that: Guide openings (27) are provided between the two sides of the conductor slot (4) in the length direction and the frame-shaped body (3).

10. A wire end connector of a small high current power connector, comprising a second insulator (16) and a wire end housing (17), wherein a drawstring (33) is provided on the wire end housing (17), characterized in that: The second insulator (16) comprises an insertion portion (18) and a connecting plane portion (29) for placing a wire (32); the insertion portion (18) protrudes from a plane on the opposite side of the connecting plane portion (29); a positioning groove is provided on the side of the insertion portion (18) and is recessed in the opposite direction to the protruding direction of the insertion portion (18); a wire end conductor (19) is provided on the surface of the insertion portion (18) and the positioning groove; a recessed groove (20) is provided on the surface of the wire end conductor (19) on the opposite side of the insertion portion (18); when plugged into a board-end connector (31), the opposite sides of the wire end conductor (19) are respectively in electrical contact with the board-end conductor (5).

11. The wire end connector of the small-sized high-current power connector according to claim 10, characterized in that: The line end conductor (19) comprises a U-shaped portion (21), the U-shaped portion (21) corresponds to the plug-in portion (18), a line end horizontal portion (23) is provided at one end of the U-shaped portion (21), and recessed positions (22) are provided on both sides of the U-shaped portion (21).

12. The line end connector of the small-sized high-current power connector according to claim 10, characterized in that: At least one bent clamping foot (24) is provided at the four corners of the wire end housing (17), and the bent clamping foot (24) is buckled on the edge of the second insulator (16). Positioning clamping feet (25) are respectively provided at both ends of the wire end housing (17).

13. The wire end connector of the small-sized high-current power connector according to claim 10, characterized in that: Guide blocks (26) are provided at both ends of the insertion portion (18) of the second insulator (16).

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

15. The small-sized high-current power connector assembly according to claim 14, characterized in that: The positioning pin (25) of the line-end connector (30) is locked in a locking hole (15) on the side of the board-end housing (1) of the board-end connector (31).

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