Outer shielding device

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to an external shielding device which comprises a contact piece and a shielding piece detachably connected with the contact piece, the contact piece is used for being connected with a connector, the shielding piece is used for being connected with a coaxial cable, the front end of the shielding piece is attached to the interior of the tail end of the contact piece, and the front end of the shielding piece is a contact area. The tail end of the contact piece is a matching area, and the contact area is connected with the matching area through a buckling structure. According to the utility model, the detachable connection mode of the shielding piece and the contact area is adopted, the connection mode is simplified, the process difficulty is reduced, the electrical connectivity is ensured, the connection stability and reliability are enhanced, and the mechanical stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to an external shielding device. Background Art

[0002] External shielding is a common design technique for electronic devices. It effectively shields external interference signals, preventing interference with internal signals and thus ensuring proper performance. This principle is based on electromagnetic shielding, which uses the reflection, absorption, and guidance of electromagnetic waves by conductors to confine them within a certain range and prevent them from propagating to unwanted areas. External shielding plays a crucial role in electronic device design.

[0003] At present, when the contact parts and shielding parts in the outer shielding device are connected together by welding, burn-through, loose welding, melting of the inner insulator, and explosion of the inner insulator are prone to occur, which affects product quality and increases the difficulty of the process. Utility Model Content

[0004] The problem to be solved by the present invention is that when the contact member and the shielding member in the outer shielding device are connected together by welding, burn-through, loose welding, melting of the internal insulator, and explosion of the internal insulator are prone to occur, which affects product quality and increases process difficulty.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An external shielding device includes a contact member and a shielding member detachably connected to the contact member, the contact member is used to connect to a connector, the shielding member is used to connect to a coaxial cable, the front end of the shielding member is attached to the inside of the rear end of the contact member, the front end of the shielding member is a contact area, and the rear end of the contact member is a mating area, and the contact area and the mating area are connected by a snap-fit ​​structure.

[0007] Furthermore, at least one protrusion is provided in the circumferential direction of the contact area, and at least one mating opening is provided in the circumferential direction of the mating area. The mating opening is an opening that matches the contour of the protrusion. The number and position of the protrusions and the mating openings are adapted to each other, and the protrusions and the mating openings form a snap-fit ​​structure.

[0008] Furthermore, the protrusions of the shielding member are evenly distributed in the circumferential direction of the contact area; and the mating openings of the contact member are evenly distributed in the circumferential direction of the mating area.

[0009] Furthermore, the shape of the protrusion includes a folded protrusion, the folded protrusion is folded and connected to the front end of the contact area, and the bottom surface of the folded protrusion is attached to the outside of the contact area.

[0010] Furthermore, the shape of the protrusion includes a convex hull protrusion, the convex hull protrusion is convex relative to the contact area, and the convex hull protrusion and the contact area are integrally formed.

[0011] Furthermore, the protrusion includes a convex protrusion, which is in a convex shape relative to the contact area. The protrusion has a fixed end and a free end, the fixed end is integrally connected to the contact area, and there is a gap between the free end and the contact area.

[0012] Furthermore, the shape of the protrusion includes a flip protrusion, the flip protrusion is flipped and connected to the front end of the shielding component, and the tail end of the flip protrusion is away from the outside of the contact area.

[0013] Furthermore, at least one snap-fitting opening is provided in the circumferential direction of the contact area, and at least one recess is provided in the circumferential direction of the mating area. The snap-fitting opening is an opening that matches the recess contour, and the number and position of the snap-fitting opening match the recess, so that the snap-fitting opening and the recess form a snap-fitting structure.

[0014] Furthermore, the concave shape includes a first concave, the rear end of the first concave is connected to the contact piece, the top surface of the rear end of the first concave is in the same plane as the outer wall of the connecting part of the mating area, a gap is left between the front end of the first concave and the inner wall of the contact piece, and the top surface of the front end of the first concave is located inside the contact piece.

[0015] Furthermore, the shape of the contact piece includes a second recess, the left and right ends of the second recess are curved surfaces, the middle part of the second recess is recessed inwardly of the left and right ends, the left and right ends of the second recess are connected to the mating area, there is a gap between the front and rear ends of the second recess and the mating area, and the middle part of the second recess is located in the mating area.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The external shielding device provided by the utility model has the advantages of compact structure, comprehensive functions, and easy maintenance and replacement. It can meet the strict requirements of modern electronic equipment for high-quality signal transmission and electromagnetic shielding, and provide reliable support for various application scenarios.

[0018] (2) The front end of the shielding member of the present invention is attached to the inside of the tail end of the contact member. Through the snap-fitting structure, the outer wall of the contact area will fit tightly with the inner wall of the matching area. This fit not only ensures the physical connection between the two, simplifies the connection method, and reduces the difficulty of the process, but also ensures electrical connectivity, enhances the stability and reliability of the connection, and improves mechanical stability.

[0019] (3) A snap-fit ​​structure is designed between the contact area and the mating area of ​​the present invention. This snap-fit ​​structure is composed of a series of protrusions and mating openings, which can cooperate with each other, making the contact area and the mating area difficult to fall off after connection. This connection method not only simplifies the assembly process and improves assembly efficiency, but also enhances the stability and reliability of the connection through the design of the snap-fit ​​structure. At the same time, due to the close fit between the contact area and the mating area, good electrical contact performance is also guaranteed.

[0020] (4) A snap-fit ​​structure is designed between the contact area and the mating area of ​​the present invention. This snap-fit ​​structure is composed of a series of recesses and snap-fit ​​openings, which can cooperate with each other, making the contact area and the mating area not easy to fall off after connection. This connection method not only simplifies the assembly process and improves assembly efficiency, but also enhances the stability and reliability of the connection through the design of the snap-fit ​​structure. At the same time, due to the close fit between the contact area and the mating area, good electrical contact performance is also guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of an embodiment of the outer shielding device of the present invention;

[0022] Figure 2 This is a structural diagram of an embodiment of the external shielding device of the present invention, in which a protrusion is buckled with a mating opening;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of an embodiment of the shielding element of the present invention, wherein the contact area is provided with a folded protrusion;

[0024] Figure 4 For the utility model Figure 3 A front view of the shielding member;

[0025] Figure 5 For the utility model Figure 3 A left side view of the shielding member;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of an embodiment of the shielding element of the present invention, wherein the contact area is provided with a convex protrusion;

[0027] Figure 7 For the utility model Figure 6 A front view of the shielding member;

[0028] Figure 8 For the utility model Figure 6 A left side view of the shielding member;

[0029] Figure 9 This is a schematic diagram of the three-dimensional structure of an embodiment of the shielding element of the present invention, wherein the contact area is provided with a convex protrusion;

[0030] Figure 10 For the utility model Figure 9 A front view of the shielding member;

[0031] Figure 11 For the utility model Figure 9 A left side view of the shielding member;

[0032] Figure 12 This is a schematic diagram of the three-dimensional structure of an embodiment of the shielding element of the present invention, wherein the contact area is provided with a flip protrusion;

[0033] Figure 13 For the utility model Figure 12 A front view of the shielding member;

[0034] Figure 14 For the utility model Figure 12 A left side view of the shielding member;

[0035] Figure 15 This is a schematic diagram of the three-dimensional structure of an embodiment of the shielding element of the present invention, wherein the contact area is provided with a mating opening;

[0036] Figure 16 This is a schematic diagram of the three-dimensional structure of an embodiment of the contact piece of the present utility model, wherein the mating area is provided with a first recess;

[0037] Figure 17 For the utility model Figure 16 The main view;

[0038] Figure 18 This is a schematic diagram of the three-dimensional structure of an embodiment of the contact piece of the present utility model, wherein the mating area is provided with a second recess;

[0039] Figure 19 For the utility model Figure 18 The main view;

[0040] Figure 20 This is one of the structural diagrams of an embodiment of the external shielding device of the present invention, which adopts a buckle-fitting mouth and a recessed buckle;

[0041] Figure 21 This is a second structural diagram of an embodiment of the external shielding device of the present invention, which adopts a buckling opening and a recessed buckling.

[0042] Reference numerals:

[0043] 1-contact piece; 2-mating opening; 3-shielding piece; 4-protrusion; 4a-folding protrusion; 4a1-bending portion; 4a2-first flat portion; 4b-convex protrusion; 4b1-front end face; 4b2-rear end face; 4c-convex piece protrusion; 4c1-fixed end; 4c2-free end; 4c3-inclined portion; 4c4-second flat portion; 4d-flip protrusion; 5-contact area; 6-crimping area; 7-mating area; 8-external shielding device; 9-insulator; 11-snap-fit ​​opening; 10-recess; 10a-first recess; 10b-second recess; L-axis of the external shielding device. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] It should be noted that the terms "center", "up", "down", "horizontal", "left", "right", "front", "back", "lateral", "longitudinal", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] Combine Figure 1-Figure 3 As shown, the utility model provides an external shielding device 8, including a contact 1, a shielding member 3 detachably connected to the contact 1, and an insulator 9, one end of the insulator 9 is connected to the contact 1, and the other end of the insulator 9 is connected to the shielding member 3, the contact 1 is used to electrically and mechanically connect to the connector, and the shielding member 3 is used to electrically and mechanically connect to the coaxial cable.

[0047] The front end of the shielding member 3 is attached to the inside of the tail end of the contact member 1. The front end of the shielding member 3 is the contact area 5, the rear end is the crimping area 6, and the tail end of the contact member 1 is the mating area 7. After the outer wall of the contact area 5 is fitted with the inner wall of the mating area 7, the contact area 5 is sleeved in the mating area 7 and is connected through the matching snap-fit ​​structure on the contact area 5 and the mating area 7.

[0048] In a specific embodiment, at least one protrusion 4 is provided in the circumferential direction of the contact area 5, and at least one mating opening 2 is provided in the circumferential direction of the mating area 7. The mating opening 2 is an opening that matches the contour of the protrusion 4. The number and position of the protrusions 4 are adapted to those of the mating openings 2. After the contact member 1 and the shielding member 3 are plugged in, the protrusion 4 and the mating opening 2 form a snap-fit ​​structure.

[0049] In a specific embodiment, the protrusions 4 of the shielding member 3 are evenly distributed in the circumferential direction of the contact area 5 thereof; and the mating openings 2 of the contact member 1 are evenly distributed in the circumferential direction of the mating area 7 thereof.

[0050] The protrusion 4 has various forms. In this embodiment, four forms of the protrusion 4 are provided, namely, a folding protrusion 4a, a convex hull protrusion 4b, a convex piece protrusion 4c and a flip protrusion 4d, which are described in detail below.

[0051] Combine Figure 3-Figure 5 As shown, in a specific embodiment, the protrusion 4 is a folded protrusion 4a, which is folded and connected to the front end of the contact area 5, and the bottom surface of the folded protrusion 4a is completely attached to the outside of the contact area 5.

[0052] The folding protrusion 4a has a bent portion 4a1 at the front end and a first flat portion 4a2 at the rear end which are integrally connected.

[0053] In a specific embodiment, the first flat portion 4a2 is an arc-shaped structure.

[0054] In a specific embodiment, the folded protrusion 4a is formed on the contact area 5 by folding the material.

[0055] Combine Figure 6-Figure 8 As shown in a specific embodiment, the protrusion 4 is a convex hull protrusion 4b, which is convex relative to the contact area 5. The convex hull protrusion 4b is directly formed as one piece with the contact area 5, and the top of the convex hull protrusion 4b is arched outside the contact area 5.

[0056] In a specific embodiment, the top of the convex protrusion 4b is an arc-shaped structure.

[0057] In a specific embodiment, the front end surface 4b1 of the convex protrusion 4b is a plane or a curved surface, and the rear end surface 4b2 of the convex protrusion 4b is a curved surface or a plane.

[0058] In a specific embodiment, the front end surface 4 b 1 of the convex protrusion 4 b is flush with the front end surface of the shielding element 3 .

[0059] In a specific embodiment, the convex protrusion 4b is directly formed on the contact area 5 by stamping.

[0060] Combine Figures 9-11 As shown, in a specific embodiment, the protrusion 4 is a convex protrusion 4c, which is in a convex shape relative to the contact area 5. The convex protrusion 4c has a fixed end 4c1 and a free end 4c2. The fixed end 4c1 is integrally connected to the contact area 5, and there is a gap between the free end 4c2 and the contact area 5.

[0061] In a specific embodiment, the protrusion 4c has an inclined portion 4c3 at the front end and a second flat portion 4c4 at the rear end integrally connected to the inclined portion 4c3.

[0062] In a specific embodiment, the second flat portion 4c4 is an arc-shaped structure.

[0063] In a specific embodiment, the protrusion 4c is formed on the contact area 5 by stamping, and the material of the protrusion 4c is partially torn to form a protrusion structure.

[0064] Combine Figure 12-14 As shown, in a specific embodiment, the protrusion 4 is a flip protrusion 4d, which is flipped and connected to the front end of the shielding member 3, and the tail end of the flip protrusion 4d is away from the outside of the contact area 5.

[0065] Combine Figure 15 、 Figure 20 As shown, in a specific embodiment, at least one snap-fitting opening 11 is provided in the circumferential direction of the contact area 5, and at least one recess 10 is provided in the circumferential direction of the mating area 7. The snap-fitting opening 11 is an opening that matches the contour of the recess 10. The number and position of the snap-fitting openings 11 match those of the recess 10. After the contact member 1 and the shielding member 3 are plugged in, the snap-fitting opening 11 and the recess 10 form a snap-fitting structure.

[0066] In a specific embodiment, the snap-fit ​​openings 11 of the shielding member 3 are evenly distributed in the circumferential direction of the contact area 5 ; and the recesses 10 of the contact member 1 are evenly distributed in the circumferential direction of the matching area 7 .

[0067] The depression 10 has various shapes. This embodiment provides two embodiments of the depression 10, namely, a first depression 10a and a second depression 10b, which are described in detail below.

[0068] Combine Figure 16 、 Figure 17 As shown, in a specific embodiment, the recess 10 adopts a first recess 10a, the rear end of the first recess 10a is connected to the contact piece 1, the top surface of the rear end of the first recess 10a and the outer wall of the connecting part of the mating area 7 are in the same plane, a gap is left between the front end of the first recess 10a and the contact piece 1, and the top surface of the front end of the first recess 10a is located inside the contact piece 1.

[0069] In a specific embodiment, the first recess 10a is formed by stamping.

[0070] Combine Figure 18 、 Figure 19As shown, in a specific embodiment, the recess 10 adopts a second recess 10b, the left and right ends of the second recess 10b are curved surfaces, the middle part of the second recess 10b is recessed inwardly of the left and right ends, the left and right ends of the second recess 10b are connected to the matching area 7, there is a gap between the front and rear ends of the second recess 10b and the matching area 7, and the middle part of the second recess 10b is located in the matching area 7.

[0071] In a specific embodiment, the second recess 10b is formed by stamping.

[0072] Assembly process:

[0073] Combine Figure 2 、 Figure 20 、 Figure 21 As shown, the contact area 5 of the shielding member 3 is inserted into the mating area 7 of the contact member 1 along the axis L, and the protrusion 4 of the shielding member 3 is engaged with the mating opening 2 of the contact member 1; or the recess 11 of the contact member 1 is in contact with the engaging opening 10 of the shielding member 3.

[0074] The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the needs of different situations.

[0075] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An external shielding device, characterized in that: The invention comprises a contact member (1) and a shielding member (3) detachably connected to the contact member (1); the contact member (1) is used to be connected to a connector; the shielding member (3) is used to be connected to a coaxial cable; the front end of the shielding member (3) is attached to the inside of the rear end of the contact member (1); the front end of the shielding member (3) is a contact area (5); the rear end of the contact member (1) is a mating area (7); the contact area (5) and the mating area (7) are connected via a snap-fit ​​structure.

2. The outer shielding device according to claim 1, characterized in that At least one protrusion (4) is provided in the circumferential direction of the contact area (5), and at least one mating opening (2) is provided in the circumferential direction of the mating area (7). The mating opening (2) is an opening that matches the profile of the protrusion (4). The number and position of the protrusions (4) and the mating opening (2) are adapted to each other, and the protrusions (4) and the mating opening (2) form a snap-fit ​​structure.

3. The outer shielding device according to claim 2, characterized in that The protrusions (4) of the shielding piece (3) are evenly distributed in the circumferential direction of its contact area (5); and the matching openings (2) of the contact piece (1) are evenly distributed in the circumferential direction of its matching area (7).

4. The outer shielding device according to claim 2, characterized in that The shape of the protrusion (4) includes a folded protrusion (4a), the folded protrusion (4a) is folded and connected to the front end of the contact area (5), and the bottom surface of the folded protrusion (4a) is attached to the outside of the contact area (5).

5. The outer shielding device according to claim 2, characterized in that The shape of the protrusion (4) includes a convex hull protrusion (4b), the convex hull protrusion (4b) is convex relative to the contact area (5), and the convex hull protrusion (4b) and the contact area (5) are integrally formed.

6. The outer shielding device according to claim 2, characterized in that The protrusion (4) comprises a convex protrusion (4c), which is in a convex shape relative to the contact area (5), and has a fixed end and a free end, wherein the fixed end is integrally connected to the contact area (5), and a gap is provided between the free end and the contact area (5).

7. The outer shielding device according to claim 2, characterized in that The shape of the protrusion (4) includes a flip protrusion (4d), the flip protrusion (4d) is flipped and connected to the front end of the shielding member (3), and the tail end of the flip protrusion (4d) is away from the outside of the contact area (5).

8. The outer shielding device according to claim 1, characterized in that At least one snap-fitting opening (11) is provided in the circumferential direction of the contact area (5), and at least one recess (10) is provided in the circumferential direction of the matching area (7). The snap-fitting opening (11) is an opening that matches the contour of the recess (10). The number and position of the snap-fitting openings (11) match those of the recess (10), and the snap-fitting openings (11) and the recess (10) form a snap-fitting structure.

9. The outer shielding device according to claim 8, characterized in that The shape of the recess (10) includes a first recess (10a), the rear end of the first recess (10a) is connected to the contact piece (1), the top surface of the rear end of the first recess (10a) and the outer wall of the connecting portion of the matching area (7) are in the same plane, a gap is left between the front end of the first recess (10a) and the inner wall of the contact piece (1), and the top surface of the front end of the first recess (10a) is located inside the contact piece (1).

10. The outer shielding device according to claim 8, characterized in that The shape of the concave (10) includes a second concave (10b), the left and right ends of the second concave (10b) are curved surfaces, the middle part of the second concave (10b) is concave at the left and right ends, the left and right ends of the second concave (10b) are connected to the matching area (7), there is a gap between the front and rear ends of the second concave (10b) and the matching area (7), and the middle part of the second concave (10b) is located in the matching area (7).

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