A wire end connector preventing skew insertion
Patent Information
- Application Number
- CN202521978572.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-15
AI Technical Summary
[0003]MCIO连接器包括线端连接器和板端连接器，两者采用直插耦合连接，其问题在于：其一，采用两侧挡墙来防斜插，鉴于标准的约束，两侧墙板厚度较薄，强度差、配合间隙大，防斜插效果差，且挡墙容易断裂，造成连接器插拔时容易出现失效的情况；其二，板端连接器的母座由于制造公差的原因，与线端连接器插拔存在一定的间隙，经常存在间隙过大时会产生电连接不稳定的情况
[0015]When the female connector of this anti-misalignment wire-end connector and board-end connector is connected, its anti-misalignment port tightly wraps around the female connector end, the plug-in board plugs into the inner wall of the female connector end, and the side limiting block of the right-angle baffle restricts the longitudinal position and the upper limiting block restricts the vertical position, thereby achieving a high-precision connection between the wire end and the board end. Moreover, the connection is provided with guide ribs to achieve stable insertion and removal with a large gap. Its beneficial effects are: First, the use of a right-angle baffle as a limiting structure significantly improves the strength. During insertion and coupling, the deformation of the right-angle baffle is small, which effectively controls the mating gap within a small range and has a good anti-misalignment effect. At the same time, the high-strength right-angle baffle can withstand multiple frequent insertions and removals without breaking or deforming, effectively maintaining long-term high-precision insertion and removal and a long service life. Second, the setting of inclined first and second guide ribs facilitates the tight connection of two parts with dimensional deviations. Especially when the gap is too large, this structure can also achieve a good and stable electrical connection, making the insertion and removal structure stable and reliable.
Smart Images
Figure CN224842457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connectors, and in particular to a wire end connector that prevents misalignment during insertion. 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] MCIO connectors include wire-end connectors and board-end connectors, both of which use direct-insertion coupling. The problems are as follows: First, the use of side walls to prevent misalignment is due to standard constraints. The side walls are relatively thin, have poor strength, and large mating gaps, resulting in poor anti-misalignment performance. Moreover, the side walls are prone to breakage, causing connector failure during insertion and removal. Second, due to manufacturing tolerances, there is a certain gap between the female socket of the board-end connector and the wire-end connector during insertion and removal. When the gap is too large, it often leads to unstable electrical connection. Utility Model Content
[0004] To address one or more of the aforementioned problems, this utility model provides a wire end connector that prevents misalignment during insertion.
[0005] According to one aspect of the present invention, the anti-misalignment wire connector includes: The main shell includes a rear open shell body. The upper plate of the shell body is integrally connected to the plug-in plate, and the front ends of its two side plates are integrally connected to two right-angle baffles. The gap between the plug-in plates is set in the two right-angle baffles. The lower wall of the plug-in plate is provided with multiple inclined first guide ribs, and the lower wall of the upper limit block of the right-angle baffle is provided with multiple inclined second guide ribs, forming an anti-skew plug-in port. The front end of the PCB board is located below the plug-in board and between the two side limiting blocks, and its rear end extends into the shell body to electrically connect multiple cables. The cable has its front end fixedly connected to the housing body via an inner mold.
[0006] In some embodiments, the first guide rib and the second guide rib are arranged in the same direction as the insertion direction. Both are transverse ribs, and the vertical dimension of the guide rib gradually increases from the outer end to the inside.
[0007] In some embodiments, the front end of the first guide rib is provided with a first guide slope, and the front end of the second guide rib is provided with a second guide slope; The front face of the right-angle baffle is provided with a first chamfer; the front face of the plug-in plate is provided with a second chamfer.
[0008] In some embodiments, multiple first guide ribs of each upper limit block are arranged at equal intervals in the longitudinal direction, and multiple second guide ribs are symmetrically arranged on both sides of the lower wall of the plug-in plate, with the second guide ribs on each side arranged at equal intervals in the longitudinal direction.
[0009] In some embodiments, the first guide rib and the second guide rib are arranged in a staggered manner along the longitudinal direction.
[0010] In some embodiments, the right-angle baffle includes a side limiting block and an upper limiting block. The upper end of the side limiting block and the outer end of the upper limiting block are integrally and vertically connected. The side limiting blocks of the two right-angle baffles are symmetrically and integrally connected to the front end face and the upper side face of the two side plates, so that the two right-angle baffles are arranged longitudinally symmetrically. The longitudinal gap of the side limiting block is located on both sides of the plug-in plate, and its upper limiting block is located above the plug-in plate.
[0011] In some implementations, the rear end of each upper limit block is vertically connected to both sides of the upper surface of the plate via a rear reinforcing plate; Alternatively, two longitudinally symmetrical U-shaped slots can be formed on the inner sides of the two side limiting blocks and on both sides of the front end of the upper plate.
[0012] In some implementations, a rectangular perforation of equal diameter passes through the front side plate of the housing body in the middle of the PCB board and the rear end is connected to a fixing seat on the inner cavity wall of the housing body.
[0013] In some embodiments, a rear cover is also included, which is detachably connected to the rear end of the housing body and closes its rear opening. An inner mold is integrally injection molded to the cable passage hole of the rear cover, and the inner mold is glued to cover the front end of the cable and its peripheral wall is fixedly connected to the housing body and the rear cover.
[0014] In some embodiments, an elastic lock is also included. The elastic lock is fixedly connected to the receiving groove on the upper surface of the upper plate and the rear cover. The front end of the upper spring plate of the elastic lock engages with the locking hole of the socket end through the second locking head to lock and fix the wire end connector and the socket end. Manually press down on the rear end of the upper spring plate or pull the rear end of the upper spring plate downwards using the pull strap to disengage the second latch from the latch hole at the socket end, thus unlocking and opening the socket.
[0015] When the female connector of this anti-misalignment wire-end connector and board-end connector is connected, its anti-misalignment port tightly wraps around the female connector end, the plug-in board plugs into the inner wall of the female connector end, and the side limiting block of the right-angle baffle restricts the longitudinal position and the upper limiting block restricts the vertical position, thereby achieving a high-precision connection between the wire end and the board end. Moreover, the connection is provided with guide ribs to achieve stable insertion and removal with a large gap. Its beneficial effects are: First, the use of a right-angle baffle as a limiting structure significantly improves the strength. During insertion and coupling, the deformation of the right-angle baffle is small, which effectively controls the mating gap within a small range and has a good anti-misalignment effect. At the same time, the high-strength right-angle baffle can withstand multiple frequent insertions and removals without breaking or deforming, effectively maintaining long-term high-precision insertion and removal and a long service life. Second, the setting of inclined first and second guide ribs facilitates the tight connection of two parts with dimensional deviations. Especially when the gap is too large, this structure can also achieve a good and stable electrical connection, making the insertion and removal structure stable and reliable. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of an anti-misalignment wire connector according to one embodiment of the present invention. Figure 2 for Figure 1 The exploded 3D view of the wire connector shown. Figure 3 for Figure 2 A three-dimensional schematic diagram of the main shell is shown (I). Figure 4 for Figure 2 A three-dimensional schematic diagram of the back cover (II); Main shell 1, shell body 10, upper plate 101, side plate 102, second through hole 103, first clip head 104, plug plate 11, first guide rib 110, second guide slope 111, second chamfer 112, right angle baffle 12, second guide rib 120, upper limit block 121, first guide slope 122, first chamfer 123, side limit block 124, rear reinforcing plate 125, U-shaped slot 126, fixing base 13; PCB board 2; cable 3; inner mold 4; end shaft 41; Back cover 5, cable hole 50; Elastic lock 6, upper spring plate 61, second locking head 62. 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 4A schematic diagram illustrates an anti-misalignment wire terminal connector according to one embodiment of the present invention. As shown, the anti-misalignment wire terminal connector includes: The main shell 1 includes a rear-opening shell body 10. The upper plate 101 of the shell body 10 is integrally connected to the insertion plate 11, and the front ends of its two side plates 102 are integrally connected to two right-angle baffles 12. The insertion plate 11 is spaced within the two right-angle baffles 12. The lower wall of the insertion plate 11 is provided with multiple inclined first guide ribs 110, and the lower wall of the upper limit block 121 of the right-angle baffle 12 is provided with multiple inclined second guide ribs 120, forming an anti-slant insertion port. Furthermore, the first guide ribs 110 and the second guide ribs 120 are arranged in the same direction as the insertion direction. Both are transverse ribs, and the vertical dimension of the guide ribs gradually increases from the outer end to the inside. The guide rib structure is simple and easy to manufacture. The arrangement direction and structure can reduce the insertion and extraction resistance. Its suitable insertion and extraction deviation is a continuous range that gradually increases from zero, making the structure widely applicable. Preferably, the front end of the first guide rib 110 is provided with a first guide slope 122, the front end of the second guide rib 120 is provided with a second guide slope 111, the front end face of the right angle baffle 12 is provided with a first chamfer 123, and the front end face of the plug-in plate 11 is provided with a second chamfer 112. The guide slope and chamfer facilitate the positioning and insertion of the assembly, avoiding rigid plugging.
[0019] PCB board 2, with its front end located below the plug-in board 11 and between the two side limiting blocks 124, and its rear end extending into the shell body 10 to electrically connect the wires of multiple cables 3; furthermore, the middle of PCB board 2 passes through the rectangular through hole of equal diameter in the front side plate of the shell body 10 and its rear end is connected to the fixing seat 13 in the inner cavity wall of the shell body 10. This arrangement has a compact structure, small overall size, simple structure and is easy to disassemble and assemble.
[0020] Cable 3 is connected to the housing body 10 via an inner mold 4 at its front end. Further, the inner mold 4 encapsulates the front end of cable 3 and its periphery is fixedly connected to the housing body 10. The inner mold 4 also has end shafts 41 at both ends. After the inner mold 4 is integrally injection molded, the end shafts 41 are integrally injection molded to connect the first through hole of the vertical foot plate and the second through holes 103 of the two side plates 102. The advantages are: this connection structure is robust, enabling the cable assembly to be firmly fixed in the housing body 10, improving the cable assembly's tensile strength and extending its service life.
[0021] Furthermore, each upper limit block 121 has multiple first guide ribs 110 arranged at equal longitudinal intervals, and multiple second guide ribs 120 are symmetrically arranged on both sides of the lower wall of the insertion plate 11, with the second guide ribs 120 on each side arranged at equal longitudinal intervals. Preferably, the first guide ribs 110 and the second guide ribs 120 are staggered longitudinally. The beneficial effect is that the equal longitudinal intervals and staggered arrangement of the guide ribs result in a uniform distribution of the insertion and extraction force.
[0022] Furthermore, the right-angle baffle 12 includes a side limiting block 124 and an upper limiting block 121. The upper end of the side limiting block 124 and the outer end of the upper limiting block 121 are integrally and vertically connected. The side limiting blocks 124 of the two right-angle baffles 12 are symmetrically and integrally connected to the front end face and upper side face of the two side plates 102, so that the two right-angle baffles 12 are longitudinally symmetrically arranged. The longitudinal gap of the side limiting blocks 124 is provided on both sides of the insertion plate 11, and its upper limiting block 121 is provided above the insertion plate 11. Its beneficial effect is that the longitudinally symmetrically arranged right-angle baffles 12 can obtain a uniform load distribution at both ends, further ensuring that the insertion is without deviation.
[0023] Preferably, the rear end of each upper limit block 121 is vertically connected to both sides of the upper surface of the plate 101 via a rear reinforcing plate 125. The beneficial effect is that the rear reinforcing plate 125 gives the right-angle baffle 12 of the limiting structure greater structural strength, ensuring anti-slant insertion and a stable and reliable connection.
[0024] Preferably, two longitudinally symmetrical U-shaped slots 126 are formed on the inner sides of the two side limiting blocks 124 and on both sides of the front end of the upper plate 101. The advantage of this arrangement is that it facilitates insertion and removal.
[0025] When the female connector of this anti-misalignment wire-end connector and board-end connector is connected, its anti-misalignment port tightly wraps around the female connector end, the insertion plate 11 inserts into the inner wall of the female connector end, and the side limiting block of the right-angle baffle 12 restricts the longitudinal position and the upper limit block 121 restricts the vertical position, thereby achieving a high-precision connection between the wire end and the board end. Moreover, the connection is provided with guide ribs to achieve stable insertion and removal with a large gap. Its beneficial effects are: First, the use of the right-angle baffle 12 as a limiting structure significantly improves the strength. During insertion and coupling, the deformation of the right-angle baffle 12 is small, which effectively controls the mating gap within a small range and has a good anti-misalignment effect. At the same time, the high-strength right-angle baffle 12 can withstand multiple frequent insertions and removals without breaking or deforming, effectively maintaining long-term high-precision insertion and removal and a long service life. Second, the setting of the inclined first guide rib 110 and second guide rib 120 facilitates the tight connection of two parts with dimensional deviations. Especially when the gap is too large, this structure can also achieve a good stable electrical connection, making the insertion and removal structure stable and reliable.
[0026] Furthermore, it also includes a rear cover 5, which is detachably connected to the rear end of the housing body 10 and closes its rear opening. Its detachable connection can be a snap-fit fixation. An inner mold 4 is integrally injection molded and connected to the cable passage hole 50 of the rear cover 5. The inner mold 4 is glued and covers the front end of the cable 3, and its peripheral wall is fixedly connected to the housing body 10 and the rear cover 5. Its advantages are: the structure is simple and easy to assemble.
[0027] Furthermore, it also includes a spring lock 6, which is fixedly connected to a receiving groove in the middle of the upper surface of the upper plate 101 and the upper surface of the rear cover 5. The front end of the upper spring plate 61 of the spring lock 6 engages with the locking hole of the socket end through the second locking head 62, which can lock and fix the wire connector and the socket end. The rear end of the upper spring plate 61 is provided with a flat pressure plate, which protrudes from the socket end. Manually pressing down on the flat pressure plate or pulling the flat pressure plate downwards at the rear end with the pull strap can disengage the second locking head 62 from the locking hole of the socket end, thereby unlocking and opening the wire connector and the socket end. Its beneficial effect is that this setting simplifies the operation steps and makes unlocking and unlocking convenient.
[0028] Preferably, the elastic lock 6 includes a U-shaped bent body, and the card hole of the lower base plate of the elastic lock 6 engages with the first card head 104 of the shell body 10. The engaging directions of the first card head 104 and the second card head 62 are opposite. The elastic lock 6 can be a press-to-unlock structure or a pull-to-unlock structure. The flat plate has a rectangular pull hole in the middle and a downwardly bent support guide at the rear. The lower base plate has a rectangular through hole at the rear. The U-shaped contact strip of the pull strap enters the through hole, passes through the pull hole, and exits again through the through hole. The contact strip fits against the rear wall of the pull hole, the support guide at the rear of the flat plate, and the rear wall of the through hole. The operating piece of the pull strap is located behind the connector. The rear end of the central groove of the rear cover 5 also has a triangular guide groove, which faces the through hole above. Its advantages are: this elastic lock is suitable for various application scenarios.
[0029] 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 wire end connector designed to prevent misalignment, characterized in that, include: The main shell (1) includes a rear open shell body (10). The upper plate (101) of the shell body (10) is integrally connected to the plug plate (11), and the front ends of its two side plates (102) are integrally connected to two right-angle baffles (12). The plug plate (11) is separated from the two right-angle baffles (12). The lower wall of the plug plate (11) is provided with multiple inclined first guide ribs (110). The lower wall of the upper limit block (121) of the right-angle baffle (12) is provided with multiple inclined second guide ribs (120), forming an anti-slant plug port. PCB board (2), the front end of the PCB board (2) is located below the plug-in board (11) and between the two side limiting blocks (124), and its rear end extends into the shell body (10) to electrically connect the wires of multiple cables (3); Cable (3), the front end of which is fixedly connected to the shell body (10) through the inner mold (4).
2. The wire connector according to claim 1, characterized in that, The first guide rib (110) and the second guide rib (120) are arranged in the same direction and inserted in the same direction. Both are transverse ribs, and the vertical dimension of the guide rib gradually increases from the outer end to the inside.
3. The wire connector according to claim 2, characterized in that, The first guide rib (110) has a first guide slope (122) at its front end, and the second guide rib (120) has a second guide slope (111) at its front end. Alternatively, the front end face of the right-angle baffle (12) may be provided with a first chamfer (123); the front end face of the plug-in plate (11) may be provided with a second chamfer (112).
4. The wire connector according to claim 1, characterized in that, Each of the upper limit blocks (121) has multiple first guide ribs (110) arranged at equal intervals in the longitudinal direction, and multiple second guide ribs (120) are symmetrically arranged on both sides of the lower wall of the plug plate (11), with the second guide ribs (120) on each side arranged at equal intervals in the longitudinal direction.
5. The wire connector according to claim 4, characterized in that, The first guide rib (110) and the second guide rib (120) are staggered along the longitudinal direction.
6. The wire connector according to claim 4, characterized in that, The right-angle baffle (12) includes a side limiting block (124) and an upper limiting block (121). The upper end of the side limiting block (124) and the outer end of the upper limiting block (121) are integrally and vertically connected. The side limiting blocks (124) of the two right-angle baffles (12) are symmetrically and integrally connected to the front end face and upper side face of the two side plates (102), so that the two right-angle baffles (12) are arranged symmetrically in the longitudinal direction. The longitudinal gap of the side limiting block (124) is located on both sides of the plug plate (11), and its upper limiting block (121) is located above the plug plate (11).
7. The wire connector according to claim 6, characterized in that, Each of the upper limit blocks (121) is vertically connected to both sides of the upper surface of the upper plate (101) via a rear reinforcing plate (125) at its rear end; Alternatively, two longitudinally symmetrical U-shaped slots (126) may be formed on the inner sides of the two side limiting blocks (124) and the front sides of the upper plate (101).
8. The wire connector according to claim 1, characterized in that, The PCB board (2) has a rectangular perforation in the middle of the front side plate of the shell body (10) with equal diameter, and the rear end is connected to the fixing seat (13) of the inner cavity wall of the shell body (10).
9. The wire connector according to any one of claims 1 to 8, characterized in that, It also includes a rear cover (5), which is detachably connected to the rear end of the shell body (10) and closes its rear opening. The inner mold (4) is integrally injection molded and connected to the through hole (50) of the rear cover (5). The inner mold (4) is glued to cover the front end of the cable (3) and its peripheral wall is fixedly connected to the shell body (10) and the rear cover (5).
10. The wire connector according to claim 9, characterized in that, It also includes an elastic lock (6), which is fixedly connected to the receiving groove on the upper surface of the upper plate (101) and the rear cover (5). The front end of the upper spring plate (61) of the elastic lock (6) is engaged with the card hole of the socket end through the second card head (62) to realize the locking and fixing of the wire end connector and the socket end. Manually press down on the rear end of the upper spring plate (61) or pull the rear end of the upper spring plate (61) downwards using the pull strap to disengage the second clip (62) from the clip hole at the socket end, thereby unlocking and opening.