Rectangular connector shield assembly
By fixing the shielding ring axially to the rectangular housing, combined with riveting and welding, the problem of unreliable shielding in small space installation of micro rectangular connectors is solved, achieving efficient 360-degree continuous shielding and reliable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-30
AI Technical Summary
Existing micro rectangular connectors have shielding methods that are difficult to meet reliability and electromagnetic protection requirements when installed in small spaces, and also have problems such as unreliable shielded connections and large space occupation.
The shielding pressure ring is axially connected and fixed to the rectangular shell. The connection between the shielding pressure ring and the rectangular shell is achieved by riveting and welding. Combined with the shielding sleeve, a 360-degree continuous shield is formed, which increases the contact area and enhances reliability.
Without increasing the connector size, 360-degree continuous shielding was achieved, reducing the space occupied and improving the reliability and tensile strength of the shielded connection.
Smart Images
Figure CN224438139U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of connector technology, specifically relating to a rectangular connector shielding assembly. Background Technology
[0002] Cable assemblies are among the most important and complex components of electrical equipment. With the rapid development of electronic and information technology in equipment, cable assemblies used in electrical equipment are gradually evolving towards miniaturization, high density, lightweight, high reliability, and electromagnetic interference resistance. Micro-rectangular connectors, due to their advantages of high density, lightweight, and miniaturization, are widely used within electrical equipment systems to achieve reliable interconnection of electrical circuit systems between cables, between cables and printed circuit boards (PCBs), and between PCBs. Currently, there are three application methods for shielding micro-rectangular connectors after wiring:
[0003] 1) such as Figure 1 As shown, the micro-rectangular connector with a pressure plate structure can achieve 360° shielding by pressing the shielding layer with the pressure plate. Within a space-constrained chassis, this method can reliably provide 360° shielding. However, pressing the shielding layer with the pressure plate occupies a significant amount of space, which may not meet the cable assembly installation requirements when the equipment space is limited.
[0004] 2) such as Figure 2 As shown, the micro-rectangular connector is fixed by wrapping conductive tape around it. The outer shielding layer of the wire is fitted onto the tail of the connector, and the connector housing and shielding layer are wrapped with conductive tape and other auxiliary materials to form a 360° conductive connection. The conductive tape is soft, and the shielding layer is not tied at the tail of the connector, so the bending radius required for the wire during installation is small, which can meet the requirements of small space installation and anti-interference. However, since the end of the shielding layer is not turned outward and tied, there is a risk of puncturing the wire insulation layer, resulting in the wire and shielding layer becoming conductive. In addition, the micro-rectangular connector and the shielding layer are bonded together by conductive tape, which is an unreliable connection and there is a risk that the shielding may fall off.
[0005] 3) such as Figure 3 As shown, a micro rectangular connector with conductive terminals is used. After the shielding layer is fitted onto the tail of the connector and turned outward, the terminals are bundled with wires and brought out. The terminals are then fixed in the corresponding positions on the equipment to achieve continuous conduction of the shield in the link. The position of the shielding bundle can be controlled according to the installation space, so that the wires at the tail of the connector are in a flexible state, which is easy to bend and wire to meet the installation requirements. However, the wires at the tail of the connector are not protected by a shielding layer, resulting in poor electromagnetic protection.
[0006] In practical applications, each of the above methods has its own shortcomings and cannot meet the usage requirements. Summary of the Invention
[0007] To address the aforementioned issues, this utility model provides a novel rectangular connector shielding assembly. By axially connecting and fixing the shielding structure to the tail of the rectangular housing, it achieves 360-degree continuous shielding while also featuring small space occupation and reliable shielding connection.
[0008] The purpose of this utility model and the technical problem it solves are achieved by the following technical solution. A rectangular connector shielding assembly according to this utility model includes a rectangular housing 1 and a shielding structure. The shielding structure includes a shielding ring 2 and a shielding sleeve 3. The front end face of the shielding ring 2 is axially connected and fixed to the rear end face of the rectangular housing 1. The front end of the shielding sleeve 3 is welded and fixed to the shielding ring 2, providing 360-degree shielding protection for the cable extending from the rear of the connector.
[0009] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.
[0010] In the aforementioned rectangular connector shielding assembly, the shielding pressure ring 2 is axially connected and fixed to the tail end face of the rectangular housing 1 through a connector. The connection of the connector ensures that the shielding pressure ring 2 and the rectangular housing 1 have sufficient axial tensile strength to meet the tensile requirements.
[0011] In the aforementioned rectangular connector shielding assembly, the connecting element is a rivet, and the shielding pressure ring 2 and the rectangular housing 1 are provided with corresponding riveting holes 22. The riveting method can simultaneously meet the requirements of small-size fixing and tensile connection.
[0012] The aforementioned rectangular connector shielding assembly includes a shielding ring 2 comprising a rectangular ring-shaped main body 23 and a fixed flange 21 formed by extending outward from one set of opposite edges of the main body 23. The fixed flange 21 is provided with a riveting hole 22 for riveting and fixing to the tail end face of the rectangular housing 1. The axial dimensions of the fixed flange and the main body not only meet the riveting and fixing requirements of the shielding ring 2, but also increase the axial dimension of the shielding ring 2, so that there is sufficient welding area between the shielding ring 2 and the shielding sleeve 3. At the same time, the fixed flange can also increase the contact area between the shielding ring 2 and the rectangular housing.
[0013] In the aforementioned rectangular connector shielding assembly, there is a gap between the two ends of the fixed flange 21 and the two ends of the side on which it is located, so that a stepped surface is formed between the fixed flange 21 and the main body 23, and thus the stepped surface can be matched with the surface on the tail end face of the rectangular shell for limiting.
[0014] In the aforementioned rectangular connector shielding assembly, the tail end face of the flange 21 is flush with the tail end face of the main body 23, and the front end face is lower than the front end face of the main body 23. The tail end of the rectangular housing 1 is provided with a groove 11 that matches the part of the front end of the main body 23 that extends out of the flange 21. The groove 11 structure can provide the shielding ring 2 with sufficient axial dimension without increasing the axial dimension of the rectangular housing.
[0015] In the aforementioned rectangular connector shielding assembly, the recess 11 has walls on only the two sides corresponding to the flange 21. The end face of the wall has a groove 12 that is adapted to the flange 21. The bottom of the groove 12 has a riveting hole. The shielding ring 2 can be quickly positioned through the recess 11 and the groove 12.
[0016] In the aforementioned rectangular connector shielding assembly, the recess 11 circumferentially limits the main body 23 through its wall, and the flange 21 is riveted and fixed to the corresponding end face of the recess wall.
[0017] In the aforementioned rectangular connector shielding assembly, the front end of the shielding sleeve 3 is welded and fixed to the inner circumferential surface of the shielding pressure ring 2.
[0018] In the aforementioned rectangular connector shielding assembly, the shielding ring 2 is made of a copper substrate.
[0019] Compared with the prior art, this utility model has significant advantages and beneficial effects. Through the above technical solution, this utility model achieves considerable technological advancement and practicality, and has broad industrial application value. It possesses at least the following advantages:
[0020] Compared with the traditional application method 1), this utility model sets the connection between the shielding pressure ring and the rectangular shell to an axial butt joint, and the shielding pressure ring and the shielding sleeve are welded and fixed, so that the axial dimension of the shielding pressure ring only needs to meet the welding requirements. The shielding pressure ring has a smaller axial dimension (the dimension along the connector mating direction), and the axial dimension of the overall connector structure is reduced by 11.72mm, which can reduce the size of the connector end while ensuring 360° shielding.
[0021] Meanwhile, compared with the traditional methods 2) and 3), the shielding pressure ring used in this utility model can achieve 360° conduction with the shielding layer by welding, and can achieve reliable connection with the connector housing by riveting, making the structure more reliable.
[0022] Furthermore, this invention increases the contact area between the shielding ring and the housing by setting a fixed flange on the shielding ring. The axial dimension difference between the main body of the shielding ring and the fixed flange ensures sufficient axial extension length for the main body to meet the welding requirements with the shielding sleeve, guaranteeing a sufficient welding area between them. Simultaneously, combined with the countersunk groove design on the tail end face of the rectangular housing, this invention's shielding ring achieves sufficient axial extension length without increasing the overall axial dimension of the connector. Attached Figure Description
[0023] Figure 1 A schematic diagram of the rear shielding of an existing rectangular housing with a pressure plate;
[0024] Figure 2 A schematic diagram of the rear shielding of a rectangular shell wrapped with existing conductive cloth tape;
[0025] Figure 3 A schematic diagram of the rear shielding of a rectangular housing with exposed conductive terminals;
[0026] Figure 4 This is a schematic diagram of the connector housing of the rectangular connector shielding assembly of this utility model;
[0027] Figure 5 This is a schematic diagram of the shielding ring structure of the rectangular connector shielding assembly of this utility model;
[0028] Figure 6 This is a schematic diagram of the shielding structure of the rectangular connector shielding assembly of this utility model;
[0029] Figure 7 This is a schematic diagram of the rectangular connector shielding assembly of this utility model.
[0030] [Explanation of Key Component Symbols]
[0031] 1: Rectangular shell
[0032] 2: Shielding pressure ring
[0033] 3: Shielding sleeve
[0034] 4: Wire
[0035] 5: Pressure plate
[0036] 6: Conductive cloth tape
[0037] 7: Terminal Detailed Implementation
[0038] To further illustrate the technical means and effects adopted by this utility model to achieve the intended invention purpose, the following detailed description of the specific implementation method, structure, features and effects of the rectangular connector shielding assembly proposed according to this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0039] Please see Figure 4-7 This is a schematic diagram of the various structural components of the rectangular connector shielding assembly of this utility model. The shielding assembly includes a rectangular housing 1 and a shielding structure fixed to the tail end of the rectangular housing. The shielding structure includes a shielding pressure ring 2 and a shielding sleeve 3. The shielding pressure ring 2 includes a rectangular annular main body 23 with the same shape as the tail end face of the rectangular housing 1, and is fixed to the tail end face of the rectangular housing 1 by a connector. The front end of the shielding sleeve 3 is fixedly connected to the inner or outer circumference of the main body 23 of the shielding pressure ring 2. However, in other embodiments of this utility model, the shielding pressure ring 2 can also be fixed to the tail end face of the rectangular housing 1 by adhesive or the like.
[0040] In this embodiment, the front end of the shielding sleeve 3 is welded and fixed to the inner wall of the main body 23 of the shielding pressure ring 2, forming a continuous and uninterrupted 360-degree fully enclosed shielding structure. The front end face of the shielding pressure ring 2 contacts the rear end face of the rectangular shell 1, thus forming a continuous enclosed shielding from the rectangular shell 1 to the shielding sleeve 3. The shielding pressure ring 2 and the rectangular shell 1 are connected and fixed by connectors, and the shielding pressure ring 2 and the shielding sleeve 3 are welded and fixed, thereby providing tensile strength between the shielding sleeve 3 and the rectangular shell 1. This allows the wires extending from the rear of the rectangular shell 1 to achieve enclosed shielding through the shielding sleeve 3, while also achieving a tensile connection with the rectangular shell 1 through the shielding sleeve 3.
[0041] In this embodiment, the shielding ring 2 is riveted to the tail end face of the rectangular housing 1. Preferably, two opposing edges on the main body 23 of the shielding ring 2 extend away from the other side to form a fixing flange 21 for engaging with the rivet. Each fixing flange 21 has at least two rivet holes 22 spaced apart for fitting with the rivet, and the tail end face of the rectangular housing 1 has corresponding rivet holes. Preferably, the length of the flange 21 is less than the length of the side it is on, and the flange 21 is only provided on the outer side of the middle part of the side to meet the fixing requirements.
[0042] In this embodiment, the tail end face of the flange 21 is flush with the tail end face of the main body 23 of the shielding ring 2, and the front end face of the flange 21 is lower than the front end face of the main body 23. At this time, the tail end of the rectangular shell 1 is provided with a recess 11, and the annular main body 23 of the shielding ring 2 is stuck in the recess 11 and in contact with the bottom end face of the recess 11. In this embodiment, the recess 11 only has walls on the two sides corresponding to the flange 21 on the shielding ring 2, and the other two sides are open. This limits the radial direction of the shielding ring 1 where only the flange 21 is provided. In order to limit the two sides of the shielding ring 1 where the flange 21 is not provided in the radial direction, the recess 11 is provided with a groove 12 on the side corresponding to the flange 21. The bottom of the groove 12 is provided with a riveting hole, and the two side walls of the groove 12 limit the two ends of the flange 21. The shielding ring 2 of this invention has flanges on the outer sides of its two long sides. The countersunk groove 11 limits the width of the shielding ring 2, while the recessed groove 12 limits its length. This allows the shielding structure to be directly fitted into the countersunk groove 11 and recessed groove 12 during assembly with the rectangular shell 1. Radial limiting is achieved through the countersunk groove 11 and recessed groove 12, and then the shielding ring 2 and the rectangular shell 1 are connected and fixed using rivets. In other words, during assembly, the shielding ring 2 and the rectangular shell 1 achieve automatic alignment and limiting through the limiting structure, thereby improving assembly speed and ensuring the connection strength between them.
[0043] In other embodiments of this utility model, the groove 12 can be omitted, and the shielding ring 2 can be initially positioned by the countersunk groove 11. Then, the position of the shielding ring 2 in the length direction can be adjusted by the corresponding riveting holes on the side wall end face of the countersunk groove 11, and finally, it can be connected and fixed by rivets.
[0044] In another embodiment of this utility model, the groove 12 can be omitted, and the sink 11 can be set as a structure with side walls on all four sides. The main body 23 of the shielding ring 2 is limited in length and width by the side walls around the sink 11, and the flange 21 is pressed and fixed to the end face of the wall of the sink 11 by rivets.
[0045] In this embodiment, the outer periphery of the rectangular housing 1 is further provided with a flange 13 for connecting to a mounting panel, and the flange 13 is provided with a connection hole 14 for connecting and fixing to the mounting panel. In this embodiment, the flanges 13 are formed by extending outwards from both ends of the rectangular housing 1 along its length.
[0046] In this embodiment, two riveting holes 22 are provided on each of the two flanges 21 of the shielding ring 2, and the shielding ring 2 is made of copper substrate.
[0047] In this embodiment, the wire 4 inside the shielding sleeve 3 is an unshielded ordinary wire. The wire extends inside the shielding sleeve 3, and the shielding function is achieved through the shielding sleeve 3. However, in other embodiments, the wire 4 can also be a shielded cable with shielding function. In this case, the shielding sleeve 3 only needs to be connected to the shielding layer of the shielded cable to conduct electricity.
[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A rectangular connector shielding assembly, characterized in that: The device includes a rectangular housing (1) and a shielding structure, which includes a shielding ring (2) and a shielding sleeve (3). The front end face of the shielding ring (2) is axially connected and fixed to the rear end face of the rectangular housing (1), and the front end of the shielding sleeve (3) is welded and fixed to the shielding ring (2) to provide 360-degree shielding protection for the cable extending from the rear of the connector.
2. The rectangular connector shielding assembly according to claim 1, characterized in that: The shielding ring (2) is axially connected and fixed to the tail end face of the rectangular shell (1) through a connector.
3. The rectangular connector shielding assembly according to claim 2, characterized in that: The connector is a rivet, and the shielding pressure ring (2) and the rectangular shell (1) are provided with corresponding rivet holes (22).
4. The rectangular connector shielding assembly according to claim 3, characterized in that: The shielding ring (2) includes a rectangular ring-shaped main body (23) and a fixed flange (21) formed by extending outward from one of the opposite edges of the main body (23). The fixed flange (21) is provided with a riveting hole (22) for riveting and fixing to the tail end face of the rectangular shell (1).
5. The rectangular connector shielding assembly according to claim 4, characterized in that: There is a gap between the two ends of the fixed flange (21) and the two ends of the side on which it is located.
6. The rectangular connector shielding assembly according to claim 4, characterized in that: The tail end face of the flange (21) is flush with the tail end face of the main body (23), and the front end face is lower than the front end face of the main body (23). The tail of the rectangular shell (1) is provided with a groove (11) that matches the part of the front end of the main body (23) that extends out of the flange (21).
7. The rectangular connector shielding assembly according to claim 6, characterized in that: The sink (11) has walls on only the two sides corresponding to the flange (21). The end face of the wall has a groove (12) that is adapted to the flange (21). The bottom of the groove (12) has a rivet hole.
8. The rectangular connector shielding assembly according to claim 6, characterized in that: The settling tank (11) circumferentially limits the main body (23) through its wall, and the flange (21) is riveted and fixed to the tail end face of the corresponding settling tank wall.
9. The rectangular connector shielding assembly according to any one of claims 1-8, characterized in that: The front end of the shielding sleeve (3) is welded and fixed to the inner circumferential surface of the shielding pressure ring (2).
10. The rectangular connector shielding assembly according to claim 9, characterized in that: The shielding ring (2) is made of copper substrate.