Shielding sheet, cable assembly and cable connector

Abstract

The utility model relates to the technical field of electric connectors, in particular to a shielding sheet, a cable assembly and a cable connector, the shielding sheet comprises a shielding main body, the shielding main body is provided with an opening, a buckle is arranged at the opening, the buckle is provided with a clamping groove used for being clamped on a cable shielding layer, and the shielding main body is also provided with a shielding tongue at the opening. The shielding tongue and the buckle are arranged on different sides of the opening, the shielding tongue overhangs to one side, facing the cable shielding layer, of the opening, and the shielding tongue is used for shielding the opening on one side of the buckle, so that the shielding effect of the shielding sheet at the opening is enhanced; the influence on the shielding effect due to the fact that a large opening needs to be formed in the buckle position, provided with the clamping groove, of the shielding sheet is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, and in particular to a shielding sheet, a cable assembly and a cable connector. Background Art

[0002] High-speed connectors are used to transmit high-speed signals and have high requirements for shielding between signals. Existing high-speed cable connectors, such as a high-speed cable connector disclosed in a Chinese invention patent application document with application publication number CN117080809A, include a connector housing, a plurality of pairs of contacts are fixedly installed on the front of the connector housing, each pair of contacts constitutes a differential pair, the front end of the contact is a plug-in end for plugging with an adapter connector, and the rear end is a connection end for connecting to a cable, and a cable is connected to the rear end of each differential pair. The cable includes two core wires for transmitting differential signals, an insulating layer wrapped around the outside of the core wires, a shielding layer wrapped around the outside of the insulating layer, and a and an insulating outer skin wrapped on the outside of the shielding layer, the two core wires are correspondingly connected to the two contacts of the differential pair to transmit high-speed differential signals. The high-speed cable connector also includes a cable shielding grounding structure, which includes an upper shielding sheet arranged on the upper side of the connector shell and a lower shielding sheet arranged on the lower side of the connector shell. The upper and lower shielding sheets cover and shield each differential pair from the upper and lower sides respectively. The upper shielding sheet is provided with an upper clamping structure for pressing the cable shielding layer downward, and the lower shielding sheet is provided with a lower clamping structure for pressing the cable shielding layer upward. The lower clamping structure corresponds to the upper clamping structure one by one, and each cable shielding layer is clamped between the upper and lower clamping structures at the corresponding positions to achieve shielding grounding.

[0003] In order to achieve reliable contact between the shielding sheet and the cable shielding layer, the above connector provides a structure for interference-fitting through a card slot in its embodiment 3. The upper clamping structure is an upper buckle protruding downward from the lower side of the upper shielding sheet, and the upper buckle is provided with an upper card slot with an opening facing downward. The lower clamping structure is a lower buckle protruding upward from the upper side of the lower shielding sheet, and the lower buckle is provided with a lower card slot with an opening facing upward. The card slot is through-connected from front to back. After the upper and lower buckles are buckled together, the upper and lower card slots are clamped on the outside of the cable shielding layer from the upper and lower sides respectively to wrap the cable shielding layer. The cable shielding layer and the card slot are interference-fitted so that the slot wall of the card slot presses the cable shielding layer, thereby achieving reliable grounding. The upper and lower clamping structures are provided at two locations corresponding to the same cable, so as to compress the cable shielding layer at two locations in the cable extension direction, further improving the compression reliability.

[0004] The above-mentioned connector utilizes a slot on the buckle to clamp the cable shielding layer to achieve reliable grounding. To ensure reliable clamping, the slot usually has a greater depth and the slot width must also be adapted to the cable. Therefore, in order to process the slot and ensure structural strength, the size of the buckle is relatively large and cantilevers inward perpendicular to the main body of the shielding sheet. The buckle is integrally formed on the main body of the shielding sheet by punching and bending. After the buckle is formed, a relatively large opening will be left on the shielding sheet at the buckle, and the opening will be open outward, which will affect the shielding effect. Utility Model Content

[0005] The purpose of the utility model is to provide a shielding sheet to solve the problem that the existing connector structure of grounding the cable shielding layer by arranging a groove on the buckle of the shielding sheet will leave a relatively large opening at the buckle on the shielding sheet, resulting in poor shielding effect; the purpose of the utility model is also to provide a cable assembly and a cable connector to solve the above-mentioned problem.

[0006] The technical solution of the shielding sheet of the utility model is:

[0007] A shielding sheet comprises a shielding body, an opening is provided on the shielding body and a buckle is provided at the opening, the buckle is provided with a slot for clamping on a cable shielding layer, a shielding tongue is also provided on the shielding body at the opening, the shielding tongue and the buckle are arranged on different sides of the opening, and the shielding tongue is cantilevered to the side of the opening facing the cable shielding layer when the shielding sheet is in use.

[0008] Furthermore, the shielding tongue and the buckle are respectively arranged on the opposite side edges of the opening, the shielding tongue and the buckle are integrally connected with the shielding body, the shielding tongue and the buckle are formed by punching and bending on the shielding sheet, and the part of the shielding sheet that is in the slot when the buckle is punched forms at least a part of the shielding tongue.

[0009] Furthermore, the shielding tongue has a contact portion for contacting a shielding layer of the cable.

[0010] Furthermore, the shielding tongue is located on a side of the buckle that is away from the connector terminal when the shielding sheet is in use.

[0011] Furthermore, the shielding tongue comprises a straight section and a bent section arranged along its overhanging direction, the straight section is connected to the shielding body, and the contact portion is arranged on the bent section.

[0012] Furthermore, a chamfer is provided at the end of the bending section, and the chamfered portion is used to form a contact portion.

[0013] Further, the buckle has a protruding portion protruding from the shielding body, and the width of a portion of the protruding portion close to the shielding body is smaller than the width of a portion away from the shielding body.

[0014] Furthermore, the buckle has a buckle root portion flush with the shielding body and a protruding portion protruding from the shielding body, and the buckle groove is arranged on the protruding portion.

[0015] Furthermore, two wire-binding claws which are spaced apart and opposite to each other are provided on the shielding body, and a wire-binding groove for limiting the cable shielding layer is formed between the two wire-binding claws.

[0016] The beneficial effects of the shielding sheet of the present invention: the utility model is improved on the basis of the shielding sheet in the prior art, and a buckle and a shielding tongue are arranged at the opening on the shielding body of the shielding sheet, the buckle has a slot for clamping on the cable shielding layer, the buckle and the shielding tongue are arranged on different sides of the opening, and the shielding tongue is cantilevered to the side of the opening facing the cable shielding layer, and the shielding tongue is used to block the opening on one side of the buckle, thereby enhancing the shielding effect of the shielding sheet at the opening, and reducing the influence on the shielding effect caused by the need to form a larger opening at the buckle with the slot on the shielding sheet.

[0017] The technical solution of the cable assembly of the utility model is:

[0018] A cable assembly includes a cable and a terminal for connecting the cable, and also includes a shielding sheet. The shielding sheet includes a shielding body, the shielding body is provided with an opening and a buckle is provided at the opening, the buckle is provided with a slot for clamping on the cable shielding layer, and the shielding body is also provided with a shielding tongue at the opening. The shielding tongue and the buckle are arranged on different sides of the opening. The shielding tongue is cantilevered to the side of the opening facing the cable shielding layer when the shielding sheet is in use.

[0019] Furthermore, the shielding tongue and the buckle are respectively arranged on the opposite side edges of the opening, the shielding tongue and the buckle are integrally connected with the shielding body, the shielding tongue and the buckle are formed by punching and bending on the shielding sheet, and the part of the shielding sheet that is in the slot when the buckle is punched forms at least a part of the shielding tongue.

[0020] Furthermore, the shielding tongue has a contact portion for contacting a shielding layer of the cable.

[0021] Furthermore, the shielding tongue is located on a side of the buckle that is away from the connector terminal when the shielding sheet is in use.

[0022] Furthermore, the shielding tongue comprises a straight section and a bent section arranged along its overhanging direction, the straight section is connected to the shielding body, and the contact portion is arranged on the bent section.

[0023] Furthermore, a chamfer is provided at the end of the bending section, and the chamfered portion is used to form a contact portion.

[0024] Further, the buckle has a protruding portion protruding from the shielding body, and the width of a portion of the protruding portion close to the shielding body is smaller than the width of a portion away from the shielding body.

[0025] Furthermore, the buckle has a buckle root portion flush with the shielding body and a protruding portion protruding from the shielding body, and the buckle groove is arranged on the protruding portion.

[0026] Furthermore, two wire-binding claws which are spaced apart and opposite to each other are provided on the shielding body, and a wire-binding groove for limiting the cable shielding layer is formed between the two wire-binding claws.

[0027] Beneficial effects of the cable assembly of the present invention: The present invention is improved on the basis of the shielding sheet of the cable assembly in the prior art, and a buckle and a shielding tongue are arranged at the opening on the shielding body of the shielding sheet, the buckle has a slot for clamping on the cable shielding layer, the buckle and the shielding tongue are arranged on different sides of the opening, and the shielding tongue is cantilevered to the side of the opening facing the cable shielding layer, and the shielding tongue is used to block the opening on one side of the buckle, thereby enhancing the shielding effect of the shielding sheet at the opening, and reducing the influence on the shielding effect caused by the need to form a larger opening at the buckle with the slot on the shielding sheet.

[0028] The technical solution of the cable connector of the utility model is:

[0029] A cable connector includes a shielding plate, which includes a shielding body. The shielding body is provided with an opening and a buckle is provided at the opening. The buckle is provided with a slot for clamping on a cable shielding layer. The shielding body is also provided with a shielding tongue at the opening. The shielding tongue and the buckle are arranged on different sides of the opening. The shielding tongue is cantilevered to the side of the opening facing the cable shielding layer when the shielding plate is in use.

[0030] Furthermore, the shielding tongue and the buckle are respectively arranged on the opposite side edges of the opening, the shielding tongue and the buckle are integrally connected with the shielding body, the shielding tongue and the buckle are formed by punching and bending on the shielding sheet, and the part of the shielding sheet that is in the slot when the buckle is punched forms at least a part of the shielding tongue.

[0031] Furthermore, the shielding tongue has a contact portion for contacting a shielding layer of the cable.

[0032] Furthermore, the shielding tongue is located on a side of the buckle that is away from the connector terminal when the shielding sheet is in use.

[0033] Furthermore, the shielding tongue comprises a straight section and a bent section arranged along its overhanging direction, the straight section is connected to the shielding body, and the contact portion is arranged on the bent section.

[0034] Furthermore, a chamfer is provided at the end of the bending section, and the chamfered portion is used to form a contact portion.

[0035] Further, the buckle has a protruding portion protruding from the shielding body, and the width of a portion of the protruding portion close to the shielding body is smaller than the width of a portion away from the shielding body.

[0036] Furthermore, the buckle has a buckle root portion flush with the shielding body and a protruding portion protruding from the shielding body, and the buckle groove is arranged on the protruding portion.

[0037] Furthermore, two wire-binding claws which are spaced apart and opposite to each other are provided on the shielding body, and a wire-binding groove for limiting the cable shielding layer is formed between the two wire-binding claws.

[0038] The beneficial effects of the cable connector of the present invention: the utility model is improved on the basis of the shielding plate of the cable connector in the prior art, and a buckle and a shielding tongue are arranged at the opening on the shielding body of the shielding plate, the buckle has a slot for clamping on the cable shielding layer, the buckle and the shielding tongue are arranged on different sides of the opening, and the shielding tongue is cantilevered to the side of the opening facing the cable shielding layer, and the shielding tongue is used to block the opening on one side of the buckle, thereby enhancing the shielding effect of the shielding plate at the opening, and reducing the influence on the shielding effect caused by the need to form a larger opening at the buckle with the slot on the shielding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic structural diagram of Embodiment 1 of the cable connector of the present utility model;

[0040] Figure 2 for Figure 1 A schematic diagram of a cable connector in FIG.

[0041] Figure 3 for Figure 2 A schematic diagram of a cable connector with two shielding plates separated;

[0042] Figure 4 for Figure 3 A schematic diagram of the structure of the shielding sheet in FIG.

[0043] Figure 5 for Figure 4 A partial schematic diagram of the shielding tongue and buckle in FIG.

[0044] Figure 6 It is a schematic diagram of a cable assembly in Embodiment 2 of the cable connector of the present utility model;

[0045] Figure 7 for Figure 6 A schematic diagram of a cable connector with one of the shielding plates separated;

[0046] Figure 8 for Figure 7 A schematic diagram of the shielding sheet in FIG.

[0047] Fig. 9 for Figure 8 A partial schematic diagram of the shielding tongue and buckle in FIG.

[0048] Fig.10 It is a schematic diagram of a cable assembly in Embodiment 3 of the cable connector of the present utility model;

[0049] Fig.11 for Fig.10 A schematic diagram of a cable assembly with a shielding cover opened;

[0050] Fig.12 for Fig.11 A schematic diagram of the shielding cover in FIG.

[0051] Fig.13 for Fig.11 Schematic diagram of the shielding case in FIG.

[0052] In the figure:

[0053] 100. Cable assembly; 200. Connector housing;

[0054] 1. Cable; 11. Cable shielding layer; 12. Core wire;

[0055] 2. Shielding sheet; 21. Clamping claw; 22. Cable tying claw; 23. Shielding tongue; 231. Straight section; 232. Bend section; 233. Chamfered corner; 24. Slot; 25. First side wall; 251. First convex part; 252. First groove; 26. Second side wall; 261. Second groove; 262. Second convex part; 27. Opening; 28. Buckle; 281. Buckle root; 282. Protrusion;

[0056] 3. Contact piece; 31. Contact terminal; 4. Insulating sleeve; 5. Fixed body;

[0057] 201, shielding sheet side wall; 202, shielding sheet bottom wall;

[0058] 211, shielding cover; 212, shielding shell; 2121, shell side wall; 2122, shell connecting wall; 2123, convex hull. DETAILED DESCRIPTION

[0059] The shielding sheet of the utility model is provided with a buckle and a shielding tongue at the opening on its shielding body, the buckle has a slot for clamping on the cable shielding layer, the buckle and the shielding tongue are arranged on different sides of the opening, and the shielding tongue is cantilevered to the side of the opening facing the cable shielding layer, and the shielding tongue is used to block the opening on one side of the buckle, thereby enhancing the shielding effect of the shielding sheet at the opening and reducing the influence on the shielding effect caused by the need to form a larger opening at the buckle where the slot is provided on the shielding sheet.

[0060] Embodiment 1 of the cable connector of the present utility model:

[0061] like Figure 1As shown, the cable connector includes a connector housing 200 and a plurality of cable assemblies 100 mounted on the connector housing 200. The connector housing 200 is provided with a mounting hole, and the cable assemblies 100 are inserted into the mounting hole. The cable assemblies 100 are arranged in rows and multiple rows are provided. The multiple cable assemblies 100 in the same row are arranged at intervals. The cable assembly 100 is used to realize the connection between the cable 1 and the corresponding adapter connector, and the cable assembly 100 is used to transmit high-speed differential signals.

[0062] like Figure 1 , Figure 2 and Figure 3 As shown, the cable assembly 100 includes a cable 1, a shielding sheet 2, a contact 3, an insulating sleeve 4 and a fixing body 5, and the fixing body 5 is used to fill between the cable 1 and the inner wall of the mounting hole of the connector housing 200 to fix the cable 1. Each cable assembly 100 has an independent shielding structure, and the shielding structure of the cable assembly 100 includes two shielding sheets 2, and the two shielding sheets 2 are connected to form a shielding cylinder. The end of the cable 1, the contact 3 and the insulating sleeve 4 are all accommodated in the inner cavity of the shielding cylinder, so that the shielding cylinder is used to surround and shield the connection part between the cable 1 and the contact 3 and the connection part between the contact 3 and the adapter contact part of the adapter connector.

[0063] The contact member 3 includes an insulator and a contact terminal 31 fixed on the insulator. The contact terminals 31 are arranged in pairs, and the two contact terminals 31 constitute a differential pair. One end of the contact terminal 31 is provided with a spring clamping structure, and the other end is provided with a welding portion. The adapter contact component of the adapter connector is a pin. The spring clamping structure of the contact terminal 31 is used to clamp the pin when the connector is plugged in to form a conductive contact. The cable 1 includes a core wire and a cable shielding layer 11 wrapped around the outer periphery of the core wire. There is an insulating layer between the cable shielding layer 11 and the core wire. The shielding sheet 2 is in conductive contact with the cable shielding layer 11 to achieve shielding conduction. The welding portion of the contact terminal 31 is used to weld with the end of the core wire of the cable 1. The two contact terminals 31 are respectively welded with the two core wires of the same cable 1. The insulating sleeve 4 has an insulating inner cavity for the spring clamping structure of the contact terminal 31 to penetrate, and the insulator of the contact member 3 is fixedly connected to the insulating sleeve 4. After the end of the cable 1 is welded to the contact terminal 31 and the contact piece 3 is fixed to the insulating sleeve 4, the two shielding sheets 2 are wrapped around the cable 1, the contact piece 3 and the insulating sleeve 4 to form a good shield.

[0064] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the shielding sheet 2 is an L-shaped structure, and the shielding sheet 2 includes a first side wall 25 and a second side wall 26 that are perpendicular to each other. The first side wall 25 of one shielding sheet 2 is connected to the second side wall 26 of another shielding sheet 2. After the two L-shaped shielding sheets 2 are connected, a rectangular shielding tube is formed and an inner cavity of the shielding tube is surrounded. The length direction of the rectangular shielding tube is consistent with the plug-in direction of the connector, the width direction is consistent with the spacing direction of the two contact terminals 31 of the differential pair, and the thickness direction is perpendicular to its length direction and width direction. The length direction of the shielding sheet 2 is consistent with the length direction of the shielding tube. The first side walls 25 of the two shielding sheets 2 are spaced opposite to each other in the thickness direction of the shielding tube, and the second side walls 26 of the two shielding sheets 2 are spaced opposite to each other in the width direction of the shielding tube. The two shielding sheets 2 have the same specifications, the same shape and size, and are arranged around the center line of the shielding tube. The two shielding sheets 2 are arranged in a central symmetric manner. The two shielding sheets 2 are buckled together perpendicular to the plugging direction of the connector and surround the end of the cable 1, the contact 3, and the insulating sleeve 4. The two shielding sheets 2 form a shielding tube cavity to accommodate the end of the cable 1 and the contact 3. The shielding tube is formed by connecting two shielding sheets 2 of the same specification. The two shielding sheets 2 have the same specifications and can be made with the same mold, saving mold costs and reducing costs.

[0065] A plurality of first convex portions 251 are provided on the edge of the first side wall 25 of the shielding sheet 2 away from the second side wall 26, and a first groove 252 is formed between two adjacent first convex portions 251; a plurality of second convex portions 262 are provided on the edge of the second side wall 26 of the shielding sheet 2 away from the first side wall 25, and a second groove 261 is formed between two adjacent second convex portions 262; the first convex portion 251 of the first side wall 25 corresponds to the second groove 261 on the second side wall 26 in position, and the first groove 252 on the first side wall 25 corresponds to the second convex portion 262 on the second side wall 26; when the two shielding sheets 2 are buckled, the first convex portion 251 is snapped into the corresponding second groove 261, and the second convex portion 262 is snapped into the corresponding first groove 252; the convex portions and the grooves correspond to form a concave-convex matching structure to ensure the relative positions of the two shielding sheets 2, so that the two shielding sheets 2 overlap each other to support each other, and the two shielding sheets 2 are welded together to ensure reliable fixation.

[0066] The cable assembly 100 has a head for plugging with an adapter connector and a tail connected to the cable 1. The end of the shielding sheet 2 close to the tail of the cable assembly 100 is provided with a clamping claw 21, a wire binding claw 22, a shielding tongue 23, and a buckle 28. The first side wall 25 of the shielding sheet 2 is used to form a shielding body. The first side wall 25 is provided with an opening 27 and a buckle 28 and a shielding tongue 23 are provided at the opening 27. The buckle 28 protrudes from the first side wall 25 and protrudes toward the side of the first side wall 25 close to the cable 1. The buckle 28 is provided with a slot 24 for clamping on the cable shielding layer 11. The slot 24 passes through the extension direction of the cable 1. The extension direction of the cable 1 is consistent with the head-to-tail direction of the cable assembly 100. The shielding tongue 23 and the buckle 28 are spaced apart along the penetration direction of the slot 24. It is arranged that the shielding tongue 23 is cantilevered to the side of the opening 27 facing the cable shielding layer 11, the shielding tongue 23 and the buckle 28 are in contact with the cable shielding layer 11, the shielding tongue 23 has a contact portion for contacting the cable shielding layer 11, and the shielding tongue 23 is used to block the opening 27 on the side of the buckle 28 and form a shielding conduction position, which can enhance the shielding effect of the shielding sheet 2 at the opening 27 and reduce the influence on the shielding effect caused by the need to form a larger opening 27 at the buckle 28 with a slot 24 on the shielding sheet 2.

[0067] The shielding sheet 2 is formed by punching and bending the sheet material. The shielding sheet 2 is an integral structure. The shielding tongue 23 and the buckle 28 are integrally connected with the first side wall 25. The shielding tongue 23 and the buckle 28 are respectively arranged at the two side edges of the opening 27 along the through direction of the card slot 24. The shielding tongue 23 and the buckle 28 are respectively cantilevered at the two side edges of the opening 27 in the head and tail direction of the cable assembly 100. The shielding tongue 23 and the buckle 28 are arranged at the opposite sides of the opening 27. The opening 27 on the first side wall 25 is formed after punching and bending the shielding tongue 23 and the buckle 28. When forming the shielding tongue 23 and the buckle 28, a slit is first processed on the shielding sheet 2, and then the portion of the shielding sheet 2 surrounded by the slit is bent, so as to form the shielding tongue 23 and the buckle 28. Among them, the position of the shielding tongue 23 corresponds to the position of the slot 24 on the buckle 28. During punching, the portion of the shielding sheet 2 in the slot 24 is used to form the shielding tongue 23. In this embodiment, the length of the shielding tongue 23 is close to the depth of the slot 24. Most of the shielding tongue 23 is formed by the portion of the shielding sheet 2 in the slot 24 during punching. The remaining material of the slot 24 is used as the material for forming the shielding tongue 23, which saves materials and is easy to manufacture. The shielding tongue 23 and the buckle 28 form two shielding conduction positions that are in conductive contact with the cable shielding layer 11. The structure is simple and the shielding effect at the opening 27 is improved.

[0068] The shielding tongue 23 is located on the side of the buckle 28 away from the connector terminal. The contact terminal 31 of the contact piece 3 is the connector terminal. The shielding tongue 23 abuts against the cable shielding layer 11. The buckle 28 is clamped with the cable shielding layer 11. After the two shielding sheets 2 are buckled together, the clamping grooves 24 on the buckles 28 of the two shielding sheets 2 cooperate to clamp the cable shielding layer 11, and the fixation is relatively firm, which is conducive to the reliable connection between the contact terminal 31 and the core wire of the cable 1.

[0069] The shielding tongue 23 includes a straight section 231 and a bent section 232 arranged along its overhanging direction. The straight section 231 is connected to the first side wall 25 of the shielding sheet 2. The straight section 231 is linearly overhanging in the direction of the buckle 28 based on the edge of the opening 27. The straight section 231 is flush with the first side wall 25. The bent section 232 is bent toward one side of the cable 1 based on the straight section 231. The bent section 232 is arranged at an angle with the straight section 231. The contact portion of the shielding tongue 23 for contacting the cable shielding layer 11 is arranged on the bent section 232, so that the shielding tongue 23 has the straight section 231 and the bent section 232, which facilitates the shielding tongue 23 to form a good elastic abutment with the cable shielding layer 11. The end of the bent section 232 is provided with a chamfer to form a chamfered portion 233. The chamfered portion 233 is used to form the contact portion of the shielding tongue 23 for contacting the cable shielding layer 11, which is conducive to reliable abutment and avoids damage to the cable shielding layer 11.

[0070] The buckle 28 has a buckle root 281 flush with the first side wall 25 of the shielding plate 2 and a protrusion 282 protruding from the first side wall 25. The buckle root 281 is connected to the first side wall 25 of the shielding plate 2, and the buckle root 281 is linearly suspended in the direction of the shielding tongue 23 based on the edge of the opening 27. The buckle root 281 is flush with the first side wall 25, and the protrusion 282 is bent toward one side of the cable 1 based on the buckle root 281. The protrusion 282 is vertically arranged with the buckle root 281, and the protrusion 282 is perpendicular to the first side wall 25. The slot 24 is arranged on the protrusion 282. The buckle 28 has a linearly suspended root, which can make the buckle 28 have a certain elastic deformation ability, which is convenient for compatibility with installation errors. The width of the portion of the protrusion 282 close to the first side wall 25 is smaller than the width of the portion away from the first side wall 25, and the width of the buckle root 281 is consistent with the width of the portion of the protrusion 282 close to the first side wall 25, so that the protrusion 282 can have a certain deformation ability, which is convenient for adapting to the installation of the cable 1. The card slot 24 has a groove bottom facing away from the first side wall 25, a groove opening, and two side groove side walls opposite to each other in the width direction of the buckle 28. The groove bottom and the two side groove side walls of the card slot 24 are tightly matched with the cable shielding layer 11 to ensure reliable contact.

[0071] Two wire catching claws 22 are provided on the shielding sheet 2 at opposite sides in the width direction of the tail of the first side wall 25. The wire catching claws 22 are bent structures. The wire catching claws 22 on opposite sides in the width direction of the shielding tube formed by the two shielding sheets 2 form a wire catching groove, so that the cable 1 passes through the center, the position of the cable 1 can be fixed, and the shielding layer of the cable 1 can be protected. The shielding layer of the cable 1 can be tightened by holding the claws 21 on opposite sides in the width direction of the shielding tube. The shielding layer of the cable 1 forms multiple contacts with the shielding sheet 2, which is conducive to reliable shielding conduction.

[0072] In other embodiments, the shielding tongue can also be made separately and welded to the opening. In this case, the shielding tongue can be fixed to one side edge of the opening in the width direction of the first side wall, that is, the shielding tongue and the buckle are arranged on adjacent sides of the opening.

[0073] In other implementations, the positions of the shielding tongue and the buckle may also be interchanged, with the shielding tongue being located on a side of the buckle close to the connector terminal.

[0074] In other implementations, the shielding tongue may also be arranged to be tilted as a whole, the shielding tongue tilts inward, and the shielding tongue is arranged to form an angle with the first side wall.

[0075] In other implementations, the end of the shielding tongue may also have an arc-shaped curved portion, and the curved portion constitutes a contact portion.

[0076] In other implementations, the shielding tongue may not be in contact with the cable shielding layer, and only relies on its own medium to perform a shielding function.

[0077] Embodiment 2 of the cable connector of the present utility model:

[0078] like Figure 6 , Figure 7 , Figure 8 , Fig. 9As shown, the cable connector includes a connector housing 200 and a cable assembly 100, the cable assembly 100 includes a cable 1, a shielding sheet 2, a contact 3 and an insulating sleeve 4, the contact 3 includes a contact terminal 31, the cable 1 includes a cable shielding layer 11 and a core wire 12, the contact terminal 31 is welded to the core wire 12, the cable shielding layer 11 is connected to the shielding sheet 2, the cable connector in this embodiment is the same as the cable connector in the above-mentioned embodiment 1 in terms of the contact, connector housing and the connection structure between the contact and the insulating sleeve, the difference lies in the setting of the shielding sheet, specifically, this embodiment The shielding sheet 2 is a U-shaped structure, and the shielding sheet 2 includes two shielding sheet side walls 201 arranged opposite to each other and a shielding sheet bottom wall 202 connecting the two shielding sheet side walls 201. The two U-shaped shielding sheets 2 form a shielding tube with a rectangular tube structure. The two shielding sheet side walls 201 of the shielding sheets 2 are opposite to each other in the width direction of the shielding tube, and the shielding sheet bottom walls 202 of the two shielding sheets 2 are opposite to each other in the thickness direction of the shielding tube. The shielding sheet side walls 201 of the two shielding sheets 2 are butt-jointed in the thickness direction of the shielding tube, and a concave-convex matching structure is provided on the shielding sheet side walls 201 of the two shielding sheets 2 to ensure reliable connection.

[0079] The shielding sheet bottom wall 202 of the shielding sheet 2 in this embodiment constitutes the shielding body, and an opening 27 is provided on the shielding sheet bottom wall 202, and a shielding tongue 23 and a buckle 28 are provided at the opening 27. The relative position relationship of the shielding tongue 23 and the buckle 28 in this embodiment is consistent with the relative position relationship of the shielding tongue and the buckle in Example 1. A slot 24 is provided on the buckle 28. The shielding tongue 23 and the buckle 28 are respectively arranged at the opposite side edges of the opening 27. The opening 27 in this embodiment includes a large mouth part with a larger width and a small mouth part with a smaller width. The shielding tongue 23 is connected to the edge of the small mouth part of the opening 27, and the buckle 28 is connected to the edge of the large mouth part of the opening 27. The buckle root 281 of the buckle 28 is consistent with the width of the protrusion 282. The small end part of the shielding tongue 23 is formed by the part of the shielding sheet 2 that is in the slot 24 during punching, and most of the shielding tongue 23 is in the small mouth part of the opening 27. The shielding tongues 23 of the two shielding sheets 2 abut against the two sides of the cable shielding layer 11 , and the buckles 28 of the two shielding sheets 2 are clamped on the periphery of the cable shielding layer 11 .

[0080] Embodiment 3 of the cable connector of the present utility model:

[0081] like Fig.10 , Fig.11 , Fig.12 , Fig.13As shown, the cable connector includes a connector housing 200 and a cable assembly 100, the cable assembly 100 includes a cable 1, a shielding structure, a contact 3, an insulating sleeve 4 and a fixed body 5. The cable connector in this embodiment is the same as the cable connector in the above-mentioned embodiment 1 in terms of the contact, connector housing, fixed body and the connection structure between the contact and the insulating sleeve, except that the shielding structure is set. Specifically, the shielding structure in this embodiment includes a shielding shell 212 and a shielding cover 211. The shielding shell 212 is covered with the shielding cover 211. The shielding shell 212 is covered with the shielding cover 211. 12 includes a U-shaped structure, the shielding shell 212 has two shell side walls 2121 spaced opposite to each other and a shell connecting wall 2122 connecting the two shell side walls 2121, the shielding cover 211 is overlapped on the two shell side walls 2121 of the shielding shell 212, and the shielding shell 212 and the shielding cover 211 are connected to form a rectangular shielding tube and enclose an inner cavity of the shielding tube, the shielding cover 211 and the shell connecting wall 2122 of the shielding shell 212 are spaced opposite to each other in the thickness direction of the shielding tube, and the two shell side walls 2121 of the shielding shell 212 are spaced opposite to each other in the width direction of the shielding tube.

[0082] In this embodiment, an opening 27 is provided on the shielding cover 211, and a shielding tongue 23 and a buckle 28 are provided at the opening 27. A slot 24 is provided on the buckle 28. The shielding cover 211 constitutes a shielding sheet 2 provided with a shielding tongue 23 and a buckle 28. The shielding tongue 23 abuts against the cable shielding layer 11 and the slot 24 of the buckle 28 is clamped on the cable shielding layer 11, so that the shielding cover 211 is connected with the cable shielding layer 11, and a convex hump 2123 is provided on the shielding shell 212 to abut against the cable shielding layer 11. The convex hump 2123 is provided on the shell connecting wall 2122 of the shielding shell 212 and corresponds to the position of the buckle 28 on the shielding cover 211 to clamp the cable shielding layer 11. The use of the convex hump 2123 structure can reduce the size occupied by the shielding conductive contact structure and facilitate layout.

[0083] Embodiments of the cable assembly of the utility model:

[0084] The cable assembly of this embodiment is the same as the cable assembly in Embodiment 1, 2 or 3 of the above-mentioned cable connector, and will not be described again here.

[0085] Embodiments of the shielding sheet of the utility model:

[0086] The shielding sheet of this embodiment is the same as the shielding sheet of the cable assembly in Embodiment 1, 2 or 3 of the above-mentioned cable connector, and will not be described again here.

[0087] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A shielding sheet, comprising a shielding body, the shielding body being provided with an opening (27) and a buckle (28) being provided at the opening (27), the buckle (28) being provided with a slot (24) for being clamped on a cable shielding layer (11), wherein: A shielding tongue (23) is also provided on the shielding body at the opening (27); the shielding tongue (23) and the buckle (28) are arranged on different sides of the opening (27); the shielding tongue (23) is cantilevered to a side of the opening (27) that faces the cable shielding layer (11) when the shielding sheet (2) is in use.

2. The shielding sheet according to claim 1, characterized in that: The shielding tongue (23) and the buckle (28) are respectively arranged on the opposite side edges of the opening (27); the shielding tongue (23) and the buckle (28) are integrally connected with the shielding body; the shielding tongue (23) and the buckle (28) are formed by punching and bending on the shielding sheet; the portion of the shielding sheet (2) that is in the clamping groove (24) when the buckle (28) is punched forms at least a portion of the shielding tongue (23).

3. The shielding sheet according to claim 1 or 2, characterized in that: The shielding tongue (23) has a contact point for contacting the cable shielding layer (11).

4. The shielding sheet according to claim 1 or 2, characterized in that: The shielding tongue (23) is located on a side of the buckle (28) that is away from the connector terminal when the shielding sheet (2) is in use.

5. The shielding sheet according to claim 1 or 2, characterized in that: The shielding tongue (23) comprises a straight section (231) and a bent section (232) arranged along its overhanging direction; the straight section (231) is connected to the shielding body, and the contact portion is arranged on the bent section (232).

6. The shielding sheet according to claim 5, characterized in that: The end of the bending section (232) is provided with a chamfer, and the chamfered portion (233) is used to form a contact portion.

7. The shielding sheet according to claim 1 or 2, characterized in that: The buckle (28) has a protruding portion (282) protruding from the shielding body, and the width of a portion of the protruding portion (282) close to the shielding body is smaller than the width of a portion away from the shielding body.

8. The shielding sheet according to claim 1 or 2, characterized in that: The buckle (28) comprises a buckle root (281) flush with the shielding body and a protruding portion (282) protruding from the shielding body, and the buckle groove (24) is arranged on the protruding portion (282).

9. The shielding sheet according to claim 1 or 2, characterized in that: The shielding body is also provided with two wire-binding claws (22) spaced apart and facing each other, and a wire-binding groove for limiting the position of the cable shielding layer (11) is formed between the two wire-binding claws (22).

10. A cable assembly, comprising a cable (1) and a terminal connected to the cable (1), characterized in that: It also includes the shielding sheet as described in any one of claims 1 to 9.

11. A cable connector, characterized in that: The shielding sheet comprises any one of claims 1 to 9.

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