A connector having a high efficiency electromagnetic shielding shell
The electrical connector with multi-layer shielding design has the wire shielding layer electrically connected to the shielding bracket to form a fully enclosed shielding system, which solves the problems of electromagnetic leakage and interference and improves the shielding performance of the electrical connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUAZHAN SPACE APPLIANCE
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-07
AI Technical Summary
Existing electrical connectors have insufficient electromagnetic shielding performance, especially under high-frequency signals, they are prone to electromagnetic leakage and interference. Traditional shielding structures cannot effectively prevent electromagnetic interference and noise penetration.
The design employs a multi-layer shielding system, where the conductor shielding layer is electrically connected to the shielding bracket, and the shielding brackets are electrically connected to each other and form a complete conductive circuit with the outer shell, thus constructing a fully enclosed shielding system.
It effectively prevents electromagnetic leakage and external interference, improves the shielding effect of electrical connectors, and ensures signal integrity.
Smart Images
Figure CN224472859U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connectors, and more specifically, to a connector with a highly efficient electromagnetic shielding shell. Background Technology
[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.
[0003] In existing technologies, the electromagnetic shielding performance of electrical connectors is crucial. Traditional electrical connectors typically employ a single-layer shielding structure, such as a shielding layer only on the outside of the cable or protection by a simple metal shell. However, with the continuous increase in signal frequency, traditional shielding methods have many problems, such as: discontinuous shielding: at connector module splicing points or wire termination locations, electromagnetic leakage can easily occur due to structural gaps, forming interference coupling paths; high grounding impedance: single-point grounding or discontinuous conductive paths can introduce additional impedance, affecting the integrity of high-frequency signals; limited anti-interference capability: external electromagnetic noise (such as radio frequency interference and common-mode noise) may penetrate local shielding layers, leading to signal quality degradation. Therefore, there is an urgent need for a new type of electrical connector shielding structure that can achieve fully enclosed electromagnetic shielding in modular splicing designs.
[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Summary of the Invention
[0005] The technical problem to be solved by this utility model is to provide a connector with a highly efficient electromagnetic shielding shell.
[0006] To address the aforementioned technical problems, this utility model provides a connector with a highly efficient electromagnetic shielding shell. The electrical connector includes a shielding shell and multiple interconnected connector modules located within the shielding shell. Each connector module includes a shielding bracket, and the shielding bracket is equipped with multiple wires. Each wire includes a shielding layer, and the shielding layer of each wire is electrically connected to the shielding bracket. The shielding brackets of the interconnected connector modules are electrically connected to each other, and the shielding brackets are electrically connected to the shielding shell, forming an overall shielding structure.
[0007] Preferably, the connector module further includes a fixed base, the shielding bracket is installed on the front side of the fixed base, the fixed base is provided with a plurality of first mounting holes, a contact terminal is installed in the first mounting holes, the shielding bracket is provided with a plurality of second mounting holes, the wire is installed in the second mounting holes, the first mounting holes and the second mounting holes correspond one-to-one, and the head of the wire is electrically connected to the tail end of the corresponding contact terminal.
[0008] Preferably, the conductor includes an inner conductor, an insulating layer covering the inner conductor, a shielding layer covering the insulating layer, and an outer sheath covering the shielding layer. After the conductor head is stripped, the shielding layer extends backward beyond the outer sheath, and the inner conductor extends backward beyond the insulating layer.
[0009] Preferably, the fixed base includes a base body, the front end of the base body extends forward along the length direction to form a first partition plate, the first partition plate divides the front end of the base body into two rows of first mounting areas, the first mounting holes are arranged in two rows on the base body, the two rows of first mounting holes are respectively located on both sides of the first partition plate, and the tail end of the contact terminal extends forward out of the first mounting hole and is located in the corresponding first mounting area.
[0010] Preferably, the shielding bracket is installed at the front end of the first partition plate. The shielding bracket includes a bracket body, and a second partition plate extends from the front end of the bracket body along the length direction. The second partition plate divides the front end of the bracket body into two rows of second mounting areas. The second mounting holes are arranged in two rows on the bracket body, and the two rows of second mounting holes are respectively located on both sides of the second partition plate. The wire extends forward from the second mounting hole and is located in the corresponding second mounting area.
[0011] Preferably, the inner wall of the shielding shell is provided with a plurality of protrusions arranged thereon, the rear end face of the protrusions abutting against the front end face of the shielding bracket to restrict the forward movement of the shielding bracket, a positioning gap is formed between two adjacent protrusions, and the two ends of the second partition plate are embedded in the positioning gap.
[0012] Preferably, a plurality of positioning elements are further installed on the inner wall of the shielding shell, and the ends of the positioning elements abut against the side wall of the fixing base.
[0013] Preferably, the two sides of the first partition plate are respectively provided with a plurality of first guide grooves extending along the length direction. The first guide groove is an inwardly recessed groove with an arc-shaped cross section, and each first guide groove is located in front of a first mounting hole. The tail end of the contact terminal is located in the first guide groove. The two ends of the contact terminal are respectively a wiring terminal and a socket connection terminal. The socket connection terminal is installed in the first mounting hole. The wiring terminal extends from the front end of the first mounting hole into the corresponding first guide groove. The cross section of the wiring terminal is semi-circular and fits against the arc-shaped inner surface of the first guide groove. The head of the inner conductor is located in the first guide groove and is electrically connected to the wiring terminal of the corresponding contact terminal by welding.
[0014] Preferably, the two sides of the second partition plate are respectively provided with a plurality of second guide grooves extending along the length direction. The second guide groove is a groove with an inwardly recessed cross section in the shape of an arc. Each second guide groove is located in front of a second mounting hole. The wire is installed in the second guide groove. The part of the shielding layer that extends beyond the outer sheath is located in the second guide groove and is fixed in the second guide groove by welding.
[0015] Preferably, the second guide groove includes alternating short guide grooves and long guide grooves, with the shielding layer welding points corresponding to the short guide grooves and the shielding layer welding points corresponding to the long guide grooves arranged alternately.
[0016] Based on the above technical solution, the beneficial effects of this utility model are as follows:
[0017] The connector with a shielded shell of this utility model adopts a multi-layer shielding design. The wire shielding layer is electrically connected to the shielding bracket, and the shielding brackets are electrically contacted with each other and form a complete conductive circuit with the shell, thus constructing a fully enclosed shielding system. This integrated shielding structure can effectively prevent electromagnetic leakage and external interference, and improve the shielding effect of the electrical connector. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the electrical connector of this utility model.
[0019] Figure 2 This is a schematic diagram of the end face structure of the electrical connector of this utility model.
[0020] Figure 3 This is a cross-sectional structural diagram of the electrical connector of this utility model.
[0021] Figure 4 This is a schematic diagram of the shielding bracket of this utility model.
[0022] Figure 5 yes Figure 2A magnified view of part A in the image.
[0023] Figure 6 This is a schematic diagram of the end face structure of the shielding bracket of this utility model.
[0024] Figure 7 This is a schematic diagram of the shielding shell of this utility model.
[0025] Figure 8 This is a structural schematic diagram of the fixed base of this utility model.
[0026] Figure 9 This is a schematic diagram of the contact terminal of this utility model.
[0027] Figure 10 This is a schematic diagram of the structure of the wire of this utility model.
[0028] Figure 11 This is an exploded structural diagram of the connector module of this utility model.
[0029] The components are as follows: 1. Shielding shell; 2. Fixed base; 3. Shielding bracket; 4. Contact terminal; 12. Positioning component; 13. Boss; 31. Bracket body; 32. Second partition plate; 33. Second mounting hole; 5. Wire; 34. Long guide groove; 35. Short guide groove; 21. Base body; 22. First mounting hole; 23. First partition plate; 24. First guide groove; 25. Positioning protrusion; 41. Wiring terminal; 42. Socket connection terminal; 51. Inner conductor; 52. Insulation layer; 53. Shielding layer; 54. Outer sheath. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0032] like Figure 1 and 2As shown, this application discloses a connector with a highly efficient electromagnetic shielding shell. The electrical connector includes a shielding shell 1 and multiple interconnected connector modules located within the shielding shell 1. Each connector module includes a shielding bracket 3, on which multiple wires 5 are mounted. Each wire 5 includes a shielding layer 53, and the shielding layer 53 of each wire 5 is electrically connected to the shielding bracket 3. The shielding brackets 3 of the interconnected connector modules are electrically connected to each other, and the shielding brackets 3 are electrically connected to the shielding shell 1, forming an integrated shielding structure. This utility model's electrical connector with a shielding shell employs a multi-layer shielding design. The shielding layer 53 of the wires 5 is electrically connected to the shielding bracket 3, and the shielding brackets 3 make electrical contact with each other and form a complete conductive circuit with the shell, constructing a fully enclosed shielding system. This integrated shielding structure effectively prevents electromagnetic leakage and external interference, improving the shielding effect of the electrical connector. Figure 10 As shown, the conductor 5 includes an inner conductor 51, an insulating layer 52 covering the inner conductor 51, a shielding layer 53 covering the insulating layer 52, and an outer sheath 54 covering the shielding layer 53. After the conductor 5 head is stripped, the shielding layer 53 extends backward beyond the outer sheath 54, and the inner conductor 51 extends backward beyond the insulating layer 52. Figure 11 As shown, the connector module further includes a fixed base 2, and the shielding bracket 3 is installed on the front side of the fixed base 2. The fixed base 2 is provided with a plurality of first mounting holes 22, and a contact terminal 4 is installed in the first mounting holes 22. The shielding bracket 3 is provided with a plurality of second mounting holes 33, and the wire 5 is installed in the second mounting holes 33. The first mounting holes 22 and the second mounting holes 33 correspond one-to-one, and the head of the wire 5 is electrically connected to the tail end of the corresponding contact terminal 4.
[0033] like Figure 8 As shown, the fixed base 2 includes a base body 21. A first partition plate 23 extends forward along the length of the front end of the base body 21, dividing the front end of the base body 21 into two rows of first mounting areas. First mounting holes 22 are arranged in two rows on the base body 21, with the two rows of first mounting holes 22 located on opposite sides of the first partition plate 23. The tail end of the contact terminal 4 extends forward from the first mounting hole 22 and is located within the corresponding first mounting area. Figure 11As shown, the shielding bracket 3 is installed at the front end of the first partition plate 23. The shielding bracket 3 includes a bracket body 31. A second partition plate 32 extends from the front end of the bracket body 31 along the length direction. The second partition plate 32 divides the front end of the bracket body 31 into two rows of second installation areas. The second installation holes 33 are arranged in two rows on the bracket body 31. The two rows of second installation holes 33 are located on both sides of the second partition plate 32. The wire 5 extends forward from the second installation hole 33 and is located in the corresponding second installation area.
[0034] like Figure 3 and 7 As shown, multiple protrusions 13 are arranged on the inner wall of the shielding housing 1. The rear end face of the protrusion 13 abuts against the front end face of the shielding bracket 3, which restricts the forward movement of the shielding bracket 3. A positioning gap is formed between two adjacent protrusions 13. The two ends of the second partition plate 32 are embedded in the positioning gap. This structure not only restricts the position of the shielding bracket 3 inside the shielding housing 1, but also ensures that the shielding bracket 3 is in close contact with the inner wall of the shielding housing 1, reducing contact resistance. Multiple positioning elements 12 are also installed on the inner wall of the shielding housing 1. The ends of the positioning elements 12 abut against the side wall of the fixing base 2, fixing the electrical connector module inside the shielding housing 1.
[0035] like Figure 8 As shown, the first partition plate 23 has multiple first guide grooves 24 extending along its length on both sides. Each first guide groove 24 is an inwardly recessed groove with an arc-shaped cross-section. Each first guide groove 24 is located in front of a first mounting hole 22. The tail end of the contact terminal 4 is located in the first guide groove 24. The two ends of the contact terminal 4 are a wiring terminal 41 and a socket connection terminal 42, respectively. The socket connection terminal 42 is installed in the first mounting hole 22. The wiring terminal 41 extends from the front end of the first mounting hole 22 into the corresponding first guide groove 24. The cross-section of the wiring terminal 41 is semi-circular and fits against the arc-shaped inner surface of the first guide groove 24. The head of the inner conductor 51 is located in the first guide groove 24 and is electrically connected to the wiring terminal 41 of the corresponding contact terminal 4 by welding.
[0036] like Figure 4As shown, the second partition plate 32 has multiple second guide grooves extending along its length on both sides. Each second guide groove is an inwardly recessed groove with an arc-shaped cross-section, and each second guide groove is located in front of a second mounting hole 33. The wire 5 is installed within the second guide groove, and the portion of the shielding layer 53 extending beyond the outer sheath 54 is located within the second guide groove and fixed therein by welding. The second guide groove includes alternating short guide grooves 35 and long guide grooves 34. The welding points of the shielding layer 53 corresponding to the short guide grooves 35 and the welding points of the shielding layer 53 corresponding to the long guide grooves 34 are staggered. If all welding points are arranged in the same position, heat will concentrate during welding, potentially leading to localized overheating of the metal, resulting in thermal stress deformation or a decrease in material properties. In this embodiment, the staggered arrangement of welding points can disperse the heat-affected zone, reduce the risk of overall thermal deformation, and improve the stability of the fit between the shielding layer 53 and the guide groove. Furthermore, the staggered arrangement of welding points can also improve space utilization. The specific arrangement can be adapted to the space constraints of the actual application scenario. The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.
[0037] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.
Claims
1. A connector having a high-efficiency electromagnetic shielded housing, characterized by, The connector includes a shielding shell (1) and multiple interconnected connector modules located within the shielding shell (1). The connector module includes a shielding bracket (3), which is equipped with multiple wires (5). Each wire (5) includes a shielding layer (53). The shielding layer (53) of each wire (5) is electrically connected to the shielding bracket (3). The shielding brackets (3) of the connector module are electrically connected to each other after being spliced together. The shielding bracket (3) is also electrically connected to the shielding shell (1) to form an overall shielding structure.
2. The connector of claim 1, wherein The connector module further includes a fixed base (2), and the shielding bracket (3) is installed on the front side of the fixed base (2). The fixed base (2) is provided with a plurality of first mounting holes (22), and a contact terminal (4) is installed in the first mounting hole (22). The shielding bracket (3) is provided with a plurality of second mounting holes (33), and the wire (5) is installed in the second mounting hole (33). The first mounting hole (22) and the second mounting hole (33) correspond one-to-one. The head of the wire (5) is electrically connected to the tail end of the corresponding contact terminal (4).
3. The connector of claim 2, wherein The conductor (5) includes an inner conductor (51), an insulation layer (52) covering the inner conductor (51), a shielding layer (53) covering the insulation layer (52), and an outer sheath (54) covering the shielding layer (53). After the head of the conductor (5) is stripped, the shielding layer (53) extends backward beyond the outer sheath (54), and the inner conductor (51) extends backward beyond the insulation layer (52).
4. The connector of claim 3, wherein The fixed base (2) includes a base body (21). The front end of the base body (21) extends forward along the length direction to form a first partition plate (23). The first partition plate (23) divides the front end of the base body (21) into two rows of first mounting areas. The first mounting holes (22) are arranged in two rows on the base body (21). The two rows of first mounting holes (22) are located on both sides of the first partition plate (23). The tail end of the contact terminal (4) extends forward out of the first mounting hole (22) and is located in the corresponding first mounting area.
5. The connector of claim 4, wherein, The shielding bracket (3) is installed at the front end of the first partition plate (23). The shielding bracket (3) includes a bracket body (31). A second partition plate (32) extends from the front end of the bracket body (31) along the length direction. The second partition plate (32) divides the front end of the bracket body (31) into two rows of second installation areas. The second installation holes (33) are arranged in two rows on the bracket body (31). The two rows of second installation holes (33) are located on both sides of the second partition plate (32). The wire (5) extends forward from the second installation hole (33) and is located in the corresponding second installation area.
6. The connector of claim 5, wherein, The inner wall of the shielding shell (1) is provided with a plurality of protrusions (13). The rear end face of the protrusion (13) abuts against the front end face of the shielding bracket (3) to restrict the shielding bracket (3) from moving forward. A positioning gap is formed between two adjacent protrusions (13). The two ends of the second partition plate (32) are embedded in the positioning gap.
7. The connector of claim 6, wherein, The inner wall of the shielding shell (1) is also equipped with a plurality of positioning elements (12), the ends of which abut against the side wall of the fixed base (2).
8. The connector of claim 5, wherein, The first partition plate (23) has multiple first guide grooves (24) extending along the length direction on both sides. The first guide groove (24) is a groove with an inwardly recessed cross section in the shape of an arc. Each first guide groove (24) is located on the front side of a first mounting hole (22). The tail end of the contact terminal (4) is located in the first guide groove (24). The two ends of the contact terminal (4) are a wiring terminal (41) and a socket connection terminal (42), respectively. The socket connection terminal (42) is installed in the first mounting hole (22). The wiring terminal (41) extends from the front end of the first mounting hole (22) into the corresponding first guide groove (24). The cross section of the wiring terminal (41) is semi-circular and fits against the arc-shaped inner surface of the first guide groove (24). The head of the inner conductor (51) is located in the first guide groove (24) and is electrically connected to the wiring terminal (41) of the corresponding contact terminal (4) by welding.
9. The connector of claim 8, wherein, The second partition plate (32) has multiple second guide grooves extending along the length direction on both sides. The second guide groove is a groove with an arc-shaped cross section that is recessed inward. Each second guide groove is located in front of a second mounting hole (33). The wire (5) is installed in the second guide groove. The part of the shielding layer (53) that extends beyond the outer sheath (54) is located in the second guide groove and is fixed in the second guide groove by welding.
10. The connector of claim 9, wherein, The second guide groove includes alternating short guide grooves (35) and long guide grooves (34), with the welding points of the shielding layer (53) corresponding to the short guide grooves (35) and the welding points of the shielding layer (53) corresponding to the long guide grooves (34) arranged alternately.