Data line shielding structure and assembling method

Abstract

The invention relates to a data line accessory technology, and discloses a data line shielding structure which comprises a connecting end, a cable and a plug module. And a first shielding shell and a second shielding shell are arranged in the connecting end. The first shielding shell comprises a sleeve head and a wire duct. The second shielding shell comprises a beam tube and a containing groove, and the containing groove is used for being connected with the first shielding shell in a sleeved mode. Wherein the first shielding shell and the second shielding shell are horizontally or vertically sleeved. The first shielding shell and the second shielding shell are suitable for horizontal layout and vertical layout, so that the first shielding shell and the second shielding shell can be repeatedly used in connection structures in different spatial directions. The shielding structure can be assembled in an axial push-in or vertical sleeving mode whether in a horizontal layout or a vertical layout, so that the universality of the shielding structure is remarkably improved, and the die development and production management cost is reduced. Furthermore, the invention further discloses an assembling method of the data line shielding structure.

Description

Technical Field

[0001] This invention relates to data cable accessory technology, and more particularly to a data cable shielding structure and assembly method. Background Technology

[0002] Data cables are susceptible to electromagnetic interference when transmitting high-frequency signals, leading to signal distortion, reduced speed, or even transmission interruption. Traditional data cable shielding structures often employ fixed layout designs, such as existing technologies CN113241560A, CN115832790A, and CN217444705U, which mostly use purely horizontal or purely vertical routing, exhibiting the following significant drawbacks:

[0003] Horizontal and vertical layouts require independently developed shielding structures, making it impossible to reuse the same components. When the connection needs to turn in a narrow space, traditional right-angle data cables cannot adapt to multiple routes due to the shielding shell's inability to accommodate them, forcing the use of bent cables or custom designs, which can cause signal reflection and impedance abrupt changes.

[0004] When switching between horizontal and vertical layouts, the shielding layer often experiences breaks due to structural incompatibility, preventing external interference (and internal noise) from being released through a continuous conductive path, leading to interference leakage.

[0005] Developing separate molds and production lines for different layouts significantly increases development cycles and management costs, and makes it difficult to meet the miniaturization requirements of connectors for compact electronic devices.

[0006] While existing technologies attempt to improve interference immunity by increasing shielding thickness or using complex grounding structures, they have not solved the problem of layout versatility. Therefore, further improvements to existing technologies are necessary. Summary of the Invention

[0007] Based on the above-mentioned technical problems, this invention proposes a data cable shielding structure and assembly method, which is suitable for both horizontal and vertical layouts, enabling it to be reused in connection structures with different spatial orientations, thereby reducing mold development and production management costs.

[0008] The technical solution of this invention is implemented as follows:

[0009] A data cable shielding structure includes a connector, a cable, and a plug module.

[0010] Its features are,

[0011] The connection end is provided with:

[0012] The first shielding shell includes a sleeve and a wire channel;

[0013] The second shielding shell includes a bundle tube and a receiving groove, the receiving groove being used to fit the first shielding shell.

[0014] in,

[0015] The first shielding shell and the second shielding shell are connected horizontally or vertically.

[0016] In the data cable shielding structure of the present invention, the first shielding shell includes a surface, a surface, a c-surface, and a d-surface, and the cable groove is disposed on the d-surface.

[0017] The second shielding shell includes an e-side.

[0018] In the data cable shielding structure of the present invention, when the first shielding shell and the second shielding shell are horizontally sleeved together...

[0019] The first shielding shell is pushed into the second shielding shell with its face facing up and its face facing down, so that the c-side of the first shielding shell and the e-side of the second shielding shell are connected to each other until the c-side of the first shielding shell completely covers the receiving groove of the second shielding shell.

[0020] In the data cable shielding structure of the present invention, when the first shielding shell and the second shielding shell are perpendicularly sleeved together...

[0021] The first shielding shell has its face down and its face up, and the sleeve and the bundle tube are perpendicularly distributed. It is pushed into the second shielding shell so that the c-face of the first shielding shell seals the receiving groove of the second shielding shell.

[0022] In the data cable shielding structure of the present invention, the first shielding shell and the second shielding shell are formed by stamping metal material, and their thickness is 0.1 mm to 0.8 mm.

[0023] In the data line shielding structure of the present invention, the first shielding shell and the second shielding shell are axially connected to form an overlapping area, thereby forming a continuous wire path.

[0024] In the data line shielding structure of the present invention, the bundle tube and the sleeve are vertically connected to form an overlapping area, thus forming a continuous conductor path.

[0025] A method for assembling a data cable shielding structure, characterized by the following specific steps:

[0026] Step 101: The first shielding shell and the second shielding shell are formed by stamping metal material; the first shielding shell is marked with a / b / c / d surfaces, the wire groove is located on the d surface, the second shielding shell is marked with e surface, and conductive grease is coated on the inner wall of the receiving groove;

[0027] Step 102: Strip 20mm of the shielding layer from the cable end to expose the conductor and grounding layer;

[0028] The second shielding shell bundle tube is crimped to the cable shielding layer, and the first shielding shell sleeve is laser welded to the metal shell of the plug module.

[0029] Step 201: Fix the second shielding shell, and adjust the first shielding shell so that side a is facing up and side b is facing down.

[0030] The tube is pushed horizontally into the receiving groove along the axis of the bundle at a speed of 5 mm / s and a pushing force of 10-15 N.

[0031] The first shielding shell c-side is completely connected to the second shielding shell e-side, and the c-side 100% covers the receiving groove, with no visible gaps.

[0032] Step 202: Adjust the first shielding shell so that side a is facing down and side b is facing up, and the sleeve is perpendicular to the bundle tube at 90°;

[0033] L-shaped tooling is used for positioning and vertically pressed into the receiving groove. The c-side of the first shielding shell completely seals the receiving groove, and the wire groove and the bundle tube interlock crosswise.

[0034] Step 3: Place the assembly into the injection mold of the connecting end, and cover it with PC / ABS material with a thickness of 1.2mm;

[0035] Step 4: X-ray inspection shows no deformation of the internal socket structure; swing test and retest for shielding effectiveness attenuation.

[0036] In the data cable shielding structure assembly method of the present invention, the horizontal layout adopts a slide rail type guide fixture with a coaxiality of ±0.1mm.

[0037] The vertical layout features a rotary pressure head with an angle sensor; the multi-directional slider design of the stamping die allows for compatibility of both horizontal and vertical layout components with a single die.

[0038] In the data line shielding structure assembly method of the present invention, the overlapping area is designed with a sawtooth interlocking structure.

[0039] In the data line shielding structure assembly method of the present invention, plasma cleaning is performed before the sleeve to increase the surface energy, and a 1A current is applied after the sleeve to perform micro-melting welding.

[0040] In the data cable shielding structure assembly method of the present invention, the shielding structure is subjected to vacuum annealing at 350°C for 2 hours after stamping to maintain the elastic modulus of the metal material ≥128GPa.

[0041] The data line shielding structure and assembly method of this invention have the following advantages:

[0042] 1. The design of the first shielding shell and the second shielding shell being interlocked creates an overlapping area inside the connection end, forming a continuous conductor path.

[0043] External interference is captured by the first shielding shell, conducted through the socket surface to the second shielding shell, and finally introduced into the cable grounding terminal; internal noise is captured by the second shielding shell, conducted in reverse to the first shielding shell and released through the grounding pin of the plug module, thus achieving bidirectional interference suppression.

[0044] 2. The first and second shielding shells are suitable for both horizontal and vertical layouts, allowing them to be reused in connection structures with different spatial orientations. Whether in a horizontal or vertical layout, both can be assembled via axial insertion or vertical sleeve connection, significantly improving the versatility of the shielding structure and reducing mold development and production management costs.

[0045] 3. The first and second shielding shells are made of metal material by stamping, with a thickness of 0.1mm to 0.8mm. While ensuring good conductivity and elasticity, they do not affect the overall appearance and structural compactness of the connection end. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of a data line shielding structure according to an embodiment of the present invention;

[0047] Figure 2 This is a cross-sectional view of a data line shielding structure according to an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram of the installation of the first shielding shell and the second shielding shell according to an embodiment of the present invention;

[0049] Figure 4 This is a schematic diagram of the data line shielding structure according to another embodiment of the present invention;

[0050] Figure 5 This is a cross-sectional view of a data line shielding structure according to another embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of the installation of the first shielding shell and the second shielding shell according to another embodiment of the present invention;

[0052] Figure 7 This is a schematic diagram of the structure of the first shielding shell of the present invention;

[0053] Figure 8 This is a schematic diagram of the structure of the second shielding shell of the present invention;

[0054] Figure 9 This is a structural block diagram of the data cable shielding structure assembly method of the present invention.

[0055] The reference numerals in the attached figures are as follows: 10-data cable shielding structure; 11-connection end; 12-cable; 13-plug module; 14-first shielding shell; 14A-sleeve; 14B-cable groove; 15-second shielding shell; 15A-buffered tube; 15B-accommodating groove. Detailed Implementation

[0056] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0057] Example 1

[0058] Reference Figures 1 to 3 As shown, this embodiment proposes a data cable shielding structure 10 including a connection end 11, a cable 12, and a plug module 13. The cable 12 is connected to the plug module 13 via the connection end 11, and the connection end 11 and the plug module 13 are installed horizontally and on the same horizontal line.

[0059] The connection end 11 is equipped with a first shielding shell 14 and a second shielding shell 15. The first shielding shell 14 is connected to the plug module 13, and the second shielding shell 15 is connected to the cable 12. The first shielding shell 14 and the second shielding shell 15 are nested together and are both located inside the connection end 11.

[0060] In this embodiment, the first shielding shell 14 and the second shielding shell 15 constitute a shielding structure to achieve dual isolation and continuous guidance of electromagnetic interference, ensuring the integrity of signal transmission in the connection terminal area.

[0061] The cable 12, connector 11, and plug module 13 are arranged in a horizontal straight line, eliminating signal reflection and impedance abrupt changes caused by traditional bending structures. After the signal enters the connector 11 through the cable 12, it is directly transmitted to the plug module 13 in the horizontal direction, minimizing signal attenuation.

[0062] The first shielding shell 14 securely connects to the metal housing of the plug module 13, directly capturing electromagnetic interference from external interfaces. The second shielding shell 15 tightly wraps around the shielding layer of the cable 12, blocking radiated noise generated by the internal conductors of the cable.

[0063] The first shielding shell 14 and the second shielding shell 15 are completely encapsulated within the insulating shell of the connecting end 11, which not only prevents mechanical damage and avoids short circuits caused by external conductive foreign objects, but also suppresses high-frequency interference leakage.

[0064] Furthermore, referring to Figures 7 to 8As shown, the first shielding shell 14 includes a sleeve 14A and a wire groove 14B. The first shielding shell 14 includes a surface a, a surface b, a surface c, and a surface d, and the wire groove 14B is disposed on the surface d. The second shielding shell 15 includes a bundle tube 15A and a receiving groove 15B, the receiving groove 15B being used to fit the first shielding shell 14.

[0065] Refer again Figure 3 As shown, when the first shielding shell 14 and the second shielding shell 15 are fitted together, the a-side of the first shielding shell 14 is facing up and the b-side is facing down, and it is pushed into the second shielding shell 15. The c-side of the first shielding shell 14 is then connected to the e-side of the second shielding shell 15 until the c-side of the first shielding shell 14 completely covers the receiving groove 15B of the second shielding shell 15.

[0066] At this point, the first shielding shell 14 and the second shielding shell 15 overlap via axial sleeve connection, forming a continuous conductor path. External interference, typically ambient electromagnetic waves, is absorbed by the first shielding shell 14, conducted through the sleeve surface to the second shielding shell 15, and finally guided to the device grounding terminal via cable 12. Internal noise, typically cable signal crosstalk, is captured by the second shielding shell 15, reverse-guided to the first shielding shell 14, and released through the grounding pin of the plug module 13.

[0067] Example 2

[0068] Reference Figures 4 to 6 As shown, this embodiment proposes a data cable shielding structure 20, including a connection end 11, a cable 12, and a plug module 13. The cable 12 is connected to the plug module 13 via the connection end 11, and the connection end 11 and the plug module 13 are installed at a right angle.

[0069] In space-constrained scenarios, such as charging a phone in the gap between the bedside and the wall, charging a device in the gap between the sofa and the wall, connecting to a wall socket or power strip, using it near a narrow cigarette lighter / USB port in a car, or connecting it when the device is placed on a table or behind a computer monitor, the cable can be run close to the side of the device or the wall, greatly reducing the need for space behind it and avoiding the problem of straight cables being excessively bent or even unable to be inserted due to insufficient space.

[0070] The connection end 11 is equipped with a first shielding shell 14 and a second shielding shell 15. The first shielding shell 14 is connected to the plug module 13, and the second shielding shell 15 is connected to the cable 12. The first shielding shell 14 and the second shielding shell 15 are nested together and are both located inside the connection end 11.

[0071] In this embodiment, the first shielding shell 14 and the second shielding shell 15 constitute a shielding structure to achieve dual isolation and continuous guidance of electromagnetic interference, ensuring the integrity of signal transmission in the connection terminal area.

[0072] The first shielding shell 14 securely connects to the metal housing of the plug module 13, directly capturing electromagnetic interference from external interfaces. The second shielding shell 15 tightly wraps around the shielding layer of the cable 12, blocking radiated noise generated by the internal conductors of the cable.

[0073] The first shielding shell 14 and the second shielding shell 15 are completely encapsulated within the insulating shell of the connecting end 11, which not only prevents mechanical damage and avoids short circuits caused by external conductive foreign objects, but also suppresses high-frequency interference leakage.

[0074] Cable 12 is arranged perpendicularly to connector 11 and plug module 13. Further, referring to... Figures 7 to 8 As shown, the first shielding shell 14 includes a sleeve 14A and a wire groove 14B. The first shielding shell 14 includes a surface a, a surface b, a surface c, and a surface d, and the wire groove 14B is disposed on the surface d. The second shielding shell 15 includes a bundle tube 15A and a receiving groove 15B, the receiving groove 15B being used to fit the first shielding shell 14.

[0075] Refer again Figure 6 As shown, when the first shielding shell 14 and the second shielding shell 15 are fitted together, the a-side of the first shielding shell 14 faces down and the b-side faces up, and the sleeve head 14A and the bundle tube 15A are perpendicularly distributed. Finally, the first shielding shell 14 is pushed into the second shielding shell 15, and the c-side of the first shielding shell 14 completely seals the receiving groove 15B of the second shielding shell 15. The bundle tube 15A, through the wire groove 14B, and the sleeve head 14A are perpendicularly fitted together to form an overlapping area, thus forming a continuous conductor path.

[0076] Preferably, the first shielding shell 14 and the second shielding shell 15 are formed by stamping metal material and have a thickness of 0.1 mm to 0.8 mm. Installing them inside the connecting end 11 does not affect the overall appearance.

[0077] It should be noted that, in this embodiment and the above embodiments, the wire path refers to: [referring to...] Figure 3 As shown, the cavity formed between the sleeve 14A and the bundle tube 15A; or refer to Figure 6 As shown, the bundle tube 15A passes through the cavity formed between the wire groove 14B and the sleeve 14A, and this cavity is used to install connectors, PCB boards, and wires. Preferably, in this embodiment and the above embodiments, the first shielding shell 14 and the second shielding shell 15 are formed by metal stamping, and installing them inside the connection end 11 does not affect the overall appearance.

[0078] Example 3

[0079] In one or more of the above embodiments, reference is made to Figure 9As shown in the figure, this embodiment proposes a data cable shielding structure assembly method, which specifically includes the following steps:

[0080] Step 1: Preparations before assembly:

[0081] Step 101: Component Pre-processing:

[0082] The first shielding shell 14 and the second shielding shell 15 are formed by stamping metal materials, and preferably, their thickness is 0.1 mm to 0.8 mm.

[0083] According to the layout requirements, the first shielding shell 14 is marked with a / b / c / d surfaces, the wire groove 14B is located on the d surface, the second shielding shell is marked with the e surface, and conductive grease is applied to the inner wall of the receiving groove 15B.

[0084] Step 102: Cable and module pre-assembly:

[0085] Strip 20mm of the shielding layer from the end of cable 12 to expose the conductor and grounding layer;

[0086] The second shielding shell bundle tube 15A is crimped to the cable shielding layer with a crimping force of 30N±5N.

[0087] The first shielding shell head 14A is laser welded to the metal shell of the plug module 13, wherein the weld resistance is ≤0.05Ω.

[0088] Step 2: Core Assembly:

[0089] Step 201: Horizontal layout assembly:

[0090] Fix the second shielding shell 15, and adjust the first shielding shell 14 so that side a faces up and side b faces down;

[0091] Push the bundle tube 15A horizontally into the receiving groove 15B at a speed of 5 mm / s and a pushing force of 10-15 N.

[0092] The first shielding shell c-side is completely connected to the second shielding shell e-side, and the c-side 100% covers the receiving groove, with no visible gaps.

[0093] Finally, the overlapping area from surface c to surface e is ≥3mm, forming an axially continuous conductive path with a resistance ≤0.1Ω.

[0094] Step 202: Vertical layout assembly:

[0095] The first shielding shell 14 is adjusted so that side a is facing down and side b is facing up, and the sleeve head 14A is perpendicular to the bundle tube 15A at 90°.

[0096] L-shaped tooling is used for positioning. The vertical press-in is applied into the accommodating groove 15B at a pressing speed of 3mm / s and a pressing force of 15-20N.

[0097] The first shielding shell c surface is completely sealed to accommodate the groove, and the wire groove 14B and the bundle tube 15A interlock with each other with a gap ≤0.1mm.

[0098] Finally, the overlapping area of ​​the wire groove and the bundle tube forms a fully circumferential conductive seal with a contact area of ​​≥80%.

[0099] Step 3: Packaging and Final Inspection

[0100] The assembly is placed into the injection mold of the connecting end 11 and covered with PC / ABS material with a thickness of 1.2mm to ensure that the shielding shell is completely sealed.

[0101] Step 4: Final Inspection Process

[0102] X-ray inspection revealed no deformation in the internal socket structure; a swing test was conducted, with a swing angle of ±30° / 5000 cycles, and the shielding effectiveness attenuation was retested to be ≤3dB; a 48-hour salt spray test verified the shell's airtightness, achieving an IP67 rating.

[0103] In this embodiment, the horizontal layout uses a slide rail type guide fixture with a coaxiality of ±0.1mm, while the vertical layout is equipped with a rotating pressure head with an angle sensor. Through the multi-directional slider design of the stamping die, one set of dies is compatible with both horizontal and vertical layout components, saving die costs.

[0104] Preferably, plasma cleaning is performed before the sleeve is attached to increase the surface energy, and a 1A current is applied after the sleeve is attached to perform micro-melting welding.

[0105] Preferably, the overlapping area is designed with a sawtooth interlocking structure to enhance the conductivity continuity under the high-frequency skin effect.

[0106] Preferably, the shielding structure is vacuum annealed at 350℃ for 2 hours after stamping to maintain the metal's elastic modulus ≥128GPa.

[0107] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A data cable shielding structure, comprising a connector (11), a cable (12), and a plug module (13). Its features are, The connection end (11) is provided with: The first shielding shell (14) includes a sleeve (14A) and a wire groove (14B). The second shielding shell (15) includes a bundle tube (15A) and a receiving groove (15B) for fitting the first shielding shell (14). in, The first shielding shell (14) and the second shielding shell (15) are connected horizontally or vertically.

2. The data cable shielding structure according to claim 1, characterized in that, The first shielding shell (14) includes a surface a, a surface b, a surface c, and a surface d, and the wire groove (14B) is disposed on the surface d. The second shielding shell (15) includes an e-side.

3. The data cable shielding structure according to claim 2, characterized in that, When the first shielding shell (14) and the second shielding shell (15) are horizontally connected, The first shielding shell (14) is pushed into the second shielding shell (15) with its a side facing up and b side facing down, so that the c side of the first shielding shell (14) and the e side of the second shielding shell (15) are connected to each other until the c side of the first shielding shell (14) completely covers the receiving groove 15B of the second shielding shell (15).

4. The data cable shielding structure according to claim 2, characterized in that, When the first shielding shell (14) and the second shielding shell (15) are vertically connected, The first shielding shell (14) has its a-side facing down and b-side facing up, and the sleeve (14A) and the bundle tube (15A) are vertically distributed. It is pushed into the second shielding shell (15), so that the c-side of the first shielding shell (14) seals the receiving groove (15B) of the second shielding shell (15).

5. The data cable shielding structure according to claim 1, characterized in that, The first shielding shell (14) and the second shielding shell (15) are formed by metal stamping.

6. The data cable shielding structure according to claim 3, characterized in that, The first shielding shell (14) and the second shielding shell (15) are axially connected to form an overlapping area, thus forming a continuous conductor path.

7. The data cable shielding structure according to claim 4, characterized in that, The bundle tube (15A) and the sleeve (14A) are vertically connected to form an overlapping area, thus forming a continuous conductor path.

8. A method for assembling a data cable shielding structure, comprising the data cable shielding structure as described in the claims, characterized in that, The specific steps are as follows: Step 101: The first shielding shell (14) and the second shielding shell (15) are formed by stamping metal materials; the first shielding shell (14) is marked with a / b / c / d surfaces, the wire groove (14B) is located on the d surface, the second shielding shell is marked with the e surface, and conductive grease is coated on the inner wall of the receiving groove (15B). Step 102: Strip 20mm of the shielding layer from the end of the cable (12) to expose the conductor and grounding layer; The second shielding shell bundle (15A) is crimped to the cable shielding layer, and the first shielding shell sleeve (14A) is laser welded to the metal shell of the plug module (13); Step 201: Fix the second shielding shell (15), and adjust the first shielding shell (14) so ​​that side a faces up and side b faces down. The tube is horizontally pushed into the receiving groove (15B) along the axis of the bundle tube (15A) at a speed of 5 mm / s and a pushing force of 10-15 N. The first shielding shell's c-side is completely connected to the second shielding shell's e-side, with the c-side 100% covering the receiving groove, and visually without any gaps. Step 202: The first shielding shell (14) is adjusted so that side a is facing down and side b is facing up, and the sleeve (14A) is perpendicular to the bundle tube (15A) at 90°. Using an L-shaped tooling for positioning, the cable is vertically pressed into the receiving groove (15B). The c-side of the first shielding shell completely seals the receiving groove, and the wire groove (14B) interlocks with the bundle tube (15A). Step 3: Place the assembly into the injection mold of the connecting end (11), and cover it with PC / ABS material with a thickness of 1.2mm; Step 4: X-ray inspection shows no deformation of the internal socket structure; swing test and retest for shielding effectiveness attenuation.

9. The data cable shielding structure assembly method according to claim 8, characterized in that, The horizontal layout uses a sliding rail type guide fixture with a coaxiality of ±0.1mm. The vertical layout features a rotary pressure head with an angle sensor; the multi-directional slider design of the stamping die allows for compatibility of both horizontal and vertical layout components with a single die.

10. The data cable shielding structure assembly method according to claim 8, characterized in that, The overlapping area is designed with a sawtooth interlocking structure.

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