Novel wire end connector

Abstract

The utility model discloses a novel wire end connector. The novel wire end connector includes: a front plug shell, a rear cover, an inner mold, an elastic lock and a lead part fixed in the front plug shell; a horizontal clamping head is arranged at the rear end of the inner wall of the upper flat plate of the front plug shell, and two horizontal side plates are symmetrically provided with longitudinal clamping holes; the horizontal clamping hole at the front end of the upper flat wall of the cover body of the rear cover is clamped with the horizontal clamping head, the vertical connecting plate outer wall of the rear cover is attached to the inner wall of the side plate, and the longitudinal clamping head of the outer wall is clamped with the longitudinal clamping hole, so as to attach and close the rear opening of the shell body; the cable of the lead part is integrally injection molded in the wire passing port and is rubber sealed; the lower base plate of the elastic lock is clamped on the shell body. The utility model has the effects of convenient processing and assembly, strong cable assembly anti-pulling capacity, reliable connection and long service life.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a novel wire-end connector. Background Technology

[0002] In recent years, with the rapid development of artificial intelligence (AI), machine learning (ML), high-performance computing (HPC), and cloud services, the amount of data that needs to be exchanged between internal server chips (such as GPUs to GPUs, GPUs to NVMe SSDs, and CPUs to accelerator cards) has grown exponentially. MCIO (Multi-Chip I / O) connectors, as a high-speed I / O interconnect solution, are widely used in high-performance computing and data center fields.

[0003] The wire-end connector is a key component of the MCIO connector. Wire-end connectors typically use a removable front housing and rear cover, with the cable secured by injection molding. The problems are twofold: First, the connection between the front housing and rear cover is not secure, resulting in unstable fit and weak tensile strength of the cable assembly, making it prone to unreliable connections and short service life. Second, a small protruding opening on the rear cover affects the injection molding process, making it difficult to process and reducing the quality of the injection molding, further compromising the connection and reducing the cable assembly's fixing strength, tensile strength, and service life. Utility Model Content

[0004] To address one or more of the aforementioned problems, this utility model provides a novel wire-end connector.

[0005] According to one aspect of the present invention, the novel wire-end connector includes: a front insert housing, a rear cover, an inner mold, an elastic lock, and a lead portion fixed inside the front insert housing; The front insert shell includes a rear open shell body. The rear end of the upper flat plate of the shell body is provided with a transverse latch and the two transverse side plates are symmetrically provided with longitudinal latch holes. The rear cover includes a right-angled cover body and vertically connected vertical plates that are symmetrically integrated on both sides of the cover body. The lower end of the longitudinal wall of the cover body is provided with a wire passage and the front end of the inner side of the upper flat wall is provided with a transverse locking hole. The transverse locking hole engages with the transverse locking head. The outer wall of the vertical connecting plate is attached to the inner wall of the side plate and the longitudinal locking head of its outer wall engages with the longitudinal locking hole, thereby fitting the rear opening of the closed shell body. The cable is integrally injection molded into the cable outlet and the lead-in part is sealed with glue. The lower base plate of the elastic lock is attached to the housing body.

[0006] In some implementations, the rear ends of the two front connecting blocks are integrally and longitudinally symmetrically connected to the upper end of the cover body, the front end of the front connecting blocks protrudes laterally from the upper flat wall, and the lateral locking hole is located at the front end of the front connecting blocks.

[0007] In some embodiments, the upper flat wall also protrudes from the vertical connecting plate to form a positioning shoulder, which fits against the upper surface of the rear end of the side plate.

[0008] In some embodiments, the side plate is also provided with a first through hole located above the longitudinal locking hole, and the vertical connecting plate is provided with a second through hole opposite to the first through hole. The end shafts at both ends of the inner mold are integrally injection molded to connect the second through hole and the first through hole.

[0009] In some embodiments, the elastic lock includes a ⊂-shaped bending body, the rear end of the upper elastic plate of the bending body is connected to a flat pressure plate through an upper inclined plate, and the rear end of its lower base plate is provided with a U-shaped support for a lower bending pressing edge structure.

[0010] In some embodiments, the upper plate has a first groove in the middle, the rear cover has a second groove in the middle, the front end of the two side walls of the first groove has a low-position limiting groove and the rear end has a high-position limiting groove, the lower end of the two side walls of the second groove has a low-position limiting groove, the lower base plate and the U-shaped support are located in the first groove and their longitudinal ends are located in the low-position limiting groove, the longitudinal ends of the upper spring plate are located in the high-position limiting groove, and the flat pressure plate is located above the rear cover.

[0011] In some embodiments, a lower locking head is provided at the front end of the first groove, the lower locking hole of the lower substrate engages with the lower locking head, and the upper locking head on the upper surface of the upper spring plate engages with the locking hole of the socket end, with the lower locking head and the upper locking head engaging in opposite directions.

[0012] In some implementations, the elastic lock is a press-to-unlock structure, and the upper surface of the flat plate is also provided with a protruding contact block for easy pressing.

[0013] In some embodiments, the elastic lock is a pull-to-unlock structure. The flat pressure plate has a rectangular pull hole in the middle and a downwardly bent support guide at the rear end. One contact of the inverted U-shaped contact end of the pull strap passes through the pull hole and the other contact is attached to the support guide. The two contact pieces are attached to the through hole of the lower substrate and the triangular guide groove of the second groove to enter the outside. The operating piece of the pull strap is located behind the connector.

[0014] In some embodiments, the rear end of the first groove is further provided with a reinforced gantry to prevent accidental contact, forming an anti-accidental contact press-to-unlock structure and a pull-to-unlock structure, respectively.

[0015] The advantages of this cable connector are as follows: First, the rear cover and the housing body are fixed by horizontal snap-fit ​​and vertical snap-fit ​​on both sides, which makes the fit more stable, the cable assembly has stronger tensile strength, reliable connection, and long service life. Second, the rear cover eliminates the protruding tail, which solves the problem of sealing the inner molded cable part caused by the opening of the traditional tail cover, which facilitates processing and assembly, and the injection molding sealing quality is good, making the connection reliable, further improving the fixing strength and tensile strength of the cable assembly, and extending its service life. Third, it has a U-shaped support with downward bending, and the rear side is completely open, which makes the spring piece assembly convenient and easy. The spring piece jig can be easily inserted, avoiding the difficult operation of the top insertion jig in the traditional spring piece assembly. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the novel wire-end connector according to Embodiment 1 of this utility model; Figure 2 for Figure 1 The diagram shows a three-dimensional exploded view of the front housing and the rear cover. Figure 3 for Figure 1 A three-dimensional schematic diagram of the lead section shown; Figure 4 for Figure 1 A three-dimensional schematic diagram of the elastic lock shown; Figure 5 for Figure 1 A bottom view of the elastic lock shown; Figure 6 This is a three-dimensional schematic diagram of the wire end connector according to Embodiment 2 of this utility model; Figure 7 This is a three-dimensional schematic diagram of the wire-end connector according to Embodiment 3 of this utility model; Figure 8 for Figure 7 A three-dimensional schematic diagram of the elastic lock shown; Figure 9 This is a three-dimensional schematic diagram of the wire-end connector according to Embodiment 4 of this utility model; Front insert shell 1, shell body 10, upper plate 101, side plate 102, transverse clamp head 103, longitudinal clamp hole 104, first through hole 105, second low position pressure block 106, first groove 107, high position pressure block 108, lower clamp head 109, reinforcing gantry 11, right angle baffle 12, fixing seat 13, right angle limiting seat 14; Rear cover 2, through port 20, right angle cover 21, longitudinal wall 210, upper flat wall 211, positioning shoulder 212, vertical connecting plate 22, second through hole 221, transverse locking hole 23, longitudinal locking head 24, second groove 25, first low-position pressure block 26, triangular guide groove 27, front connecting block 28. Inner mold 3, end shaft 31; 4. Elastic lock, 40. U-shaped support, 41. Lower base plate, 411. Through hole, 42. Upper spring plate, 43. Upper inclined plate, 44. Flat pressure plate, 441. Protruding contact block, 442. Pull hole, 443. Support guide plate, 45. Lower locking hole, 46. Upper locking head. 7. Pull belt; 71. Contact terminal; 72. Operating plate; Leading section 01, cable 5, PCB board 6, Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0018] Figures 1 to 5 The figure schematically illustrates a novel wire-end connector according to Embodiment 1 of the present invention. As shown, the novel wire-end connector includes: a front insert housing 1, a rear cover 2, an inner mold 3, an elastic lock 4, and a guide portion 01 fixed inside the front insert housing 1; The front insert shell 1 includes a rear-opening shell body 10. The rear end of the inner wall of the upper flat plate 101 of the shell body 10 is provided with a transverse locking head 103, and two transverse side plates 102 are symmetrically provided with longitudinal locking holes 104. Further, the rear ends of two front connecting blocks 28 are integrally and longitudinally symmetrically connected to the upper end of the cover body 21. The front end of the front connecting block 28 protrudes laterally from the upper flat wall 211, and the transverse locking hole 23 is located at the front end of the front connecting block 28. The transverse locking hole 23 and the longitudinal locking hole 104 are preferably rectangular holes.

[0019] The rear cover 2 includes a right-angled cover body 21 and vertically connected vertically on both sides of the cover body 21. The lower end of the longitudinal wall 210 of the cover body 21 is provided with a wire passage 20 and the front end of the inner side of the upper flat wall 211 is provided with a transverse locking hole 23. The transverse locking hole 23 is engaged with a transverse locking head 103. The outer wall of the vertical connecting plate 22 is attached to the inner wall of the side plate 102 and the longitudinal locking head 24 of its outer wall is engaged with the longitudinal locking hole 104, thereby fitting the rear opening of the closed shell body 10. The inner mold 3 is integrally injection molded into the cable 5 in the cable passage 20 and the guide portion 01 is sealed with adhesive. Further, the side plate 102 is also provided with a first through hole 105 located above the longitudinal locking hole 104, and the vertical connecting plate 22 is provided with a second through hole 221 opposite to the first through hole 105. When the inner mold 3 is integrally injection molded into the cable passage 20, the end shafts 31 at both ends of the inner mold 3 are integrally injection molded to connect the second through hole 221 and the first through hole 105. Preferably, the cable passage 20 is a rectangular hole, the inner mold 3 is a rectangular block, and the first through hole 105 is a round hole or a rectangular hole.

[0020] The lower base plate 41 of the elastic lock 4 is attached to the housing body 10.

[0021] The advantages of this cable connector are as follows: First, the rear cover 2 and the housing body 10 are fixed by horizontal snap-fit ​​and vertical snap-fit ​​on both sides, which makes the fit more stable, the cable assembly has stronger tensile strength, reliable connection and long service life; Second, the rear cover eliminates the protruding tail, which solves the difficulty of sealing the inner molded cable part caused by the opening of the traditional tail cover, which facilitates processing and assembly, and the injection molding sealing quality is good, making the connection reliable, further improving the fixing strength and tensile strength of the cable assembly and long service life.

[0022] Furthermore, the upper flat wall 211 also protrudes from the vertical connecting plate 22 to form a positioning shoulder 212, which fits against the upper surface of the rear end of the side plate 102. The beneficial effect is that this design further improves positioning accuracy, enabling high-precision assembly.

[0023] Furthermore, the elastic lock 4 includes a ⊂-shaped bending body. The rear end of the upper spring plate 42 of the bending body is connected to the flat pressure plate 44 via an upper inclined plate 43, and the rear end of its lower base plate 41 is provided with a U-shaped support 40 with a lower bending pressing edge structure. Its advantages are: the rear side is completely open, the spring piece assembly is convenient and easy, and the spring piece jig can be easily inserted, avoiding the difficulty of the top-entry jig operation in traditional spring piece assembly.

[0024] Furthermore, the upper plate 101 has a first groove 107 in the middle, and the rear cover 2 has a second groove 25 in the middle. The first groove 107 has a low-position limiting groove at the lower front end and a high-position limiting groove at the upper rear end on both side walls. The second groove 25 has a low-position limiting groove at the lower end of both side walls. The lower base plate 41 and the U-shaped support 40 are located in the first groove 107, and their longitudinal ends are located in the low-position limiting groove. The upper spring plate 42 has its longitudinal ends located in the high-position limiting groove. The flat pressure plate 44 is located above the rear cover 2. Preferably, the second groove 25 has a first low-position pressing block 26 on both longitudinal side walls, the first groove 107 has a second low-position pressing block 106 at the front end and a high-position pressing block 108 at the rear end, the rectangular grooves below the first low-position pressing block 26 and the second low-position pressing block 106 are low-position limiting grooves, and the rectangular groove below the high-position pressing block 108 is a high-position limiting groove. A right-angle limiting seat 14 is also provided at the front center of the first groove 107. The first U-shaped hole of the lower base plate 41 is directly opposite the upper baffle of the right-angle limiting seat 14, and the second U-shaped through hole of the upper spring plate 42 is directly opposite the limiting notch of the right-angle limiting seat 14. Its beneficial effect is that this setting effectively ensures the positional accuracy of the spring piece 4, realizing precise unlocking and unlocking.

[0025] Furthermore, the front end of the first groove 107 is provided with a lower clip head 109, the lower clip hole 45 of the lower base plate 41 engages with the lower clip head 109, and the upper clip head 46 on the upper surface of the upper spring plate 42 engages with the clip hole of the socket end. The engagement directions of the lower clip head 109 and the upper clip head 46 are opposite.

[0026] In the first embodiment described above, the elastic lock 4 is a press-to-unlock structure. Preferably, the upper surface of the flat pressure plate 44 is also provided with a protruding contact block 441 for easy pressing.

[0027] like Figure 6 As shown, the connector of the anti-accidental touch press unlock structure of Embodiment 2 is illustrated. Its specific structure is as follows: based on Embodiment 1, it is further provided that the rear end of the first groove 107 is also provided with an anti-accidental touch reinforcing gantry 11.

[0028] like Figures 7 to 8 As shown, the wire end connector of the pull-unlock structure in Embodiment 3 is illustrated. Based on Embodiment 1, the elastic lock 4 is a pull-unlock structure. The flat pressure plate 44 has a rectangular pull hole 442 in the middle and a downwardly bent support guide plate 443 at the rear end. One contact piece of the inverted U-shaped contact end 71 of the pull strap 7 passes through the pull hole 442 and the other contact piece is attached to the support guide plate 443. The two contact pieces are attached to each other and pass through the through hole 411 of the lower substrate 41 and the triangular guide groove 27 of the second groove 25 to enter the outside. The operating piece 72 of the pull strap 7 is located behind the connector.

[0029] The lower substrate 41 has a rectangular through hole 411 at its rear end, and the second groove 25 has a triangular guide groove 27 in the middle of its rear end, which is directly opposite the through hole 411.

[0030] like Figure 9 The diagram illustrates the anti-accidental touch pull-to-unlock structure of Embodiment 4. Specifically, based on Embodiment 3, a reinforcing gantry 11 for preventing accidental touch is provided at the rear end of the first groove 107, forming both an anti-accidental touch press-to-unlock structure and a pull-to-unlock structure.

[0031] The above four implementation methods illustrate that this structure has a wide range of applications.

[0032] Furthermore, the lead section 01 also includes a PCB board 6. The front end of the PCB board 6 is located inside the insertion interface of the front insertion shell 1 and is surrounded by right-angle baffles 12 on both sides and an insertion plate on top. The central rectangular hole of equal diameter passes through the front side of the shell body 10, and its rear end is connected to the fixing seat 13 inside the shell body 10. The rear end of the PCB board 6 is electrically connected to the wires of multiple cables 5. Its beneficial effect is that the right-angle baffles 12 can effectively solve the insertion tilt problem.

[0033] The above are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A novel wire-end connector, characterized in that, Includes: front insert shell (1), rear cover (2), inner mold (3), elastic lock (4) and lead part (01) fixed in front insert shell (1); The front insert shell (1) includes a rear open shell body (10). The rear end of the inner wall of the upper plate (101) of the shell body (10) is provided with a transverse latch (103) and the two transverse side plates (102) are symmetrically provided with longitudinal latch holes (104). The rear cover (2) includes a right-angled cover body (21) and vertically connected plates (22) that are symmetrically connected vertically to both sides of the cover body (21). The lower end of the longitudinal wall (210) of the cover body (21) is provided with a wire passage (20) and the front end of the inner side of the upper flat wall (211) is provided with a transverse locking hole (23). The transverse locking hole (23) is engaged with the transverse locking head (103). The outer wall of the vertical connecting plate (22) is attached to the inner wall of the side plate (102) and the longitudinal locking head (24) of its outer wall is engaged with the longitudinal locking hole (104), thereby fitting the rear opening of the closed shell body (10). The inner mold (3) is integrally injection molded into the cable (5) through the cable port (20) and the lead part (01) is sealed with glue. The lower base plate (41) of the elastic lock (4) is snapped onto the shell body (10).

2. The novel wire-end connector according to claim 1, characterized in that, The two front connecting blocks (28) are longitudinally and symmetrically connected at the rear end to the upper end of the cover (21). The front end of the front connecting block (28) protrudes laterally from the upper flat wall (211), and the transverse locking hole (23) is located at the front end of the front connecting block (28).

3. The novel wire-end connector according to claim 1, characterized in that, The upper flat wall (211) also protrudes from the vertical connecting plate (22) to form a positioning shoulder (212), which fits against the upper rear end surface of the side plate (102).

4. The novel wire-end connector according to claim 1, characterized in that, The side plate (102) is also provided with a first through hole (105) located above the longitudinal card hole (104), and the vertical connecting plate (22) is provided with a second through hole (221) opposite to the first through hole (105). The end shafts (31) at both ends of the inner mold (3) are integrally injection molded to connect the second through hole (221) and the first through hole (105).

5. The novel wire-end connector according to claim 1, characterized in that, The elastic lock (4) includes a ⊂-shaped bending body. The rear end of the upper elastic plate (42) of the bending body is connected to the flat pressure plate (44) through the upper inclined plate (43). The rear end of the lower base plate (41) is provided with a U-shaped support (40) of the lower bending pressing edge structure.

6. The novel wire-end connector according to claim 5, characterized in that, The upper plate (101) has a first groove (107) in the middle, and the rear cover (2) has a second groove (25) in the middle. The front end of the two side walls of the first groove (107) has a low-position limiting groove and the rear end has a high-position limiting groove. The lower end of the two side walls of the second groove (25) has a low-position limiting groove. The lower base plate (41) and the U-shaped support (40) are located in the first groove (107) and their longitudinal ends are located in the low-position limiting groove. The longitudinal ends of the upper spring plate (42) are located in the high-position limiting groove. The flat pressure plate (44) is located above the rear cover (2).

7. The novel wire-end connector according to claim 6, characterized in that, The first groove (107) has a lower clip (109) at the front end. The lower clip (45) of the lower base plate (41) engages with the lower clip (109). The upper clip (46) on the upper surface of the upper spring plate (42) engages with the clip hole at the socket end. The engagement directions of the lower clip (109) and the upper clip (46) are opposite.

8. The novel wire-end connector according to claim 7, characterized in that, The elastic lock (4) is a press-to-unlock structure, and the upper surface of the flat plate (44) is also provided with a protruding contact block (441) for easy pressing.

9. The novel wire-end connector according to claim 7, characterized in that, The elastic lock (4) is a pull-unlock structure. The flat pressure plate (44) has a rectangular pull hole (442) in the middle and a downwardly bent support guide plate (443) at the rear end. One contact of the inverted U-shaped contact end (71) of the pull strap (7) passes through the pull hole (442) and the other contact is attached to the support guide plate (443). The two contact pieces are attached to the through hole (411) of the lower substrate (41) and the triangular guide groove (27) of the second groove (25) and enter the outside. The operating piece (72) of the pull strap (7) is located behind the connector.

10. The wire-end connector according to claim 8 or 9, characterized in that, The rear end of the first groove (107) is also provided with a reinforced gantry (11) to prevent accidental touch, forming an anti-accidental touch press unlocking structure and a pull unlocking structure respectively.

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