CN220753924U - Cable accessory structure using shielding ring to fix shielding net and electric connector - Google Patents
Cable accessory structure using shielding ring to fix shielding net and electric connector Download PDFInfo
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- CN220753924U CN220753924U CN202322167574.5U CN202322167574U CN220753924U CN 220753924 U CN220753924 U CN 220753924U CN 202322167574 U CN202322167574 U CN 202322167574U CN 220753924 U CN220753924 U CN 220753924U
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- conical surface
- shielding
- metal sleeve
- cable
- compaction
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- 239000002184 metal Substances 0.000 claims abstract description 49
- 238000005056 compaction Methods 0.000 claims abstract description 23
- 239000012212 insulator Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 description 46
- 230000006835 compression Effects 0.000 description 45
- 238000003825 pressing Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides an use cable accessory structure and electric connector of fixed shielding net of shielding circle, cable accessory structure includes metal sleeve, cable clamp and installs the shielding circle between metal sleeve and cable clamp, the preceding terminal surface of shielding circle is the diameter from front to back first conical surface that compresses tightly that gradually increases, the rear end face of shielding circle is the diameter from front to back second conical surface that compresses tightly that gradually reduces, metal sleeve's rear end is equipped with the third conical surface that compresses tightly with first conical surface cooperation in order to compress tightly the shielding net layer, the cable clamp has the internal thread connection section with metal sleeve's rear end external screw thread cooperation, the cable clamp inner wall is equipped with the fourth conical surface that compresses tightly with second conical surface cooperation in order to compress tightly the shielding net layer. The cable accessory structure adopts the shielding net layer of the shielding cable to position, and matched with the matched conical surfaces arranged on the metal sleeve and the cable clamp, so that double compaction and fixation of the shielding net layer are realized, the shifting of the shielding net layer can be effectively avoided, and the high environmental resistance and electromagnetic shielding performance of the electric connector are ensured.
Description
Technical Field
The utility model belongs to the technical field of connectors, and particularly relates to a cable accessory structure using a shielding ring to fix a shielding net and an electric connector.
Background
The electric connector is an important matching element of aviation, aerospace and other system equipment, and connection transmission of electric signals is realized through butt joint of a plug and a socket. In order to meet the tensile resistance and shielding performance of the connector cable and meet the severe environment occasion, accessories capable of meeting the use requirements are required. When the electric connector is connected with the cable, the shielding layer of the cable needs to be connected with the metal shell of the electric connector to realize grounding shielding. In the prior art, as disclosed in chinese patent CN109428202B, an electrical connector and a tail accessory thereof, wherein a bearing ring and a shielding ring form a shielding layer fixing structure, and mating surfaces of the bearing ring and the shielding ring are conical surfaces, so that the cable shielding layer is clamped and fixed between the mating surfaces of the bearing ring and the shielding ring in the compression process, thereby realizing reliable connection between the shielding layer fixing structure and the shielding layer; the installation effectiveness is low during actual operation, the cable shielding layer is tightly pressed by a plurality of parts, the production cost of the connector is high, and the fixing reliability of the shielding layer is general. From the aspect of the position relation, the shielding rings used for compressing the shielding layer in the prior art are all sleeved outside the cable shielding layer, the shielding layer is positioned by mutually extruding the shielding rings and another part, the shielding rings are communicated with the connector metal shell so as to realize shielding grounding, but because the connection mode is completed inside the connector shell, an installer cannot intuitively determine whether the shielding layer is compressed in place or not.
Disclosure of Invention
In order to solve the technical problems in the prior art, the utility model provides a cable accessory structure and a connector using a shielding ring to fix a shielding net.
The utility model aims at solving the technical problems by adopting the following technical scheme. According to the cable accessory structure for fixing the shielding net by using the shielding ring, the cable accessory structure comprises a metal sleeve, a cable clamp and the shielding ring arranged between the metal sleeve and the cable clamp, wherein the front end face of the shielding ring is a first compression conical surface with the diameter gradually increasing from front to back, the rear end face of the shielding ring is a second compression conical surface with the diameter gradually decreasing from front to back, the rear end of the metal sleeve is provided with a third compression conical surface matched with the first compression conical surface to compress the shielding net layer, the cable clamp is provided with an internal thread connecting section matched with the external thread of the rear end of the metal sleeve, and the inner wall of the cable clamp is provided with a fourth compression conical surface matched with the second compression conical surface to compress the shielding net layer.
Further, the projection lengths of the first compression conical surface and the second compression conical surface on the central axis of the shielding ring are consistent.
Further, the rear end of the first compression conical surface is connected with the front end of the second compression conical surface through an outer connecting surface, the front end of the first compression conical surface is connected with the rear end of the second compression conical surface through an inner connecting surface, the outer connecting surface extends along the front-back direction, and the outer connecting surface is parallel to the inner connecting surface, so that the cross section of the shielding ring is isosceles trapezoid.
Further, the extending direction of the first compressing conical surface and the extending direction of the second compressing conical surface form an included angle of 90 degrees, and at the moment, the compressing and fixing effects on the shielding net layer are good.
Further, the connecting nut is rotatably assembled at the front end of the metal sleeve through the retainer ring.
The utility model is further realized by adopting the following technical scheme.
The utility model also provides an electric connector, which comprises a cable accessory structure and a contact piece, wherein the cable accessory structure comprises a metal sleeve, a cable clamp and a shielding ring arranged between the metal sleeve and the cable clamp, the front end surface of the shielding ring is a first compression conical surface with the diameter gradually increasing from front to back, the rear end surface of the shielding ring is a second compression conical surface with the diameter gradually decreasing from front to back, the rear end of the metal sleeve is provided with a third compression conical surface matched with the first compression conical surface to compress a shielding net layer, the cable clamp is provided with an internal thread connecting section matched with the external thread of the rear end of the metal sleeve, the inner wall of the cable clamp is provided with a fourth compression conical surface matched with the second compression conical surface to compress the shielding net layer, and the contact piece is arranged in the metal sleeve through an insulator and is used for being connected with a wire inside the shielding net layer.
Further, the projection lengths of the first compression conical surface and the second compression conical surface on the central axis of the shielding ring are consistent.
Further, the rear end of the first compression conical surface is connected with the front end of the second compression conical surface through an outer connecting surface, the front end of the first compression conical surface is connected with the rear end of the second compression conical surface through an inner connecting surface, the outer connecting surface extends along the front-back direction, and the outer connecting surface is parallel to the inner connecting surface, so that the cross section of the shielding ring is isosceles trapezoid.
Further, the extending direction of the first compressing conical surface and the extending direction of the second compressing conical surface form an included angle of 90 degrees.
Further, the connecting nut is rotatably assembled at the front end of the metal sleeve through the retainer ring.
By means of the technical scheme, the utility model has the beneficial effects that:
the cable accessory structure designed by the utility model adopts the shielding net layer of the cable to position, and matched with the matched conical surfaces arranged on the metal sleeve and the cable clamp, so that double compaction and fixation of the shielding net layer are realized, the advantages are larger compared with the simple inclined plane compaction and fixation in the prior art, the displacement of the shielding net layer can be effectively avoided, the contact stability of the shielding net layer and the metal sleeve is ensured, the high environmental resistance and the electromagnetic shielding performance of the electric connector are ensured, and the cable accessory structure is used for occasions with severe environment. In addition, in the installation process, the shielding ring is firstly installed in the shielding net layer, then the cable and the shielding ring are forwards installed in the rear end of the metal sleeve, and finally the cable clamp is rotated to press the shielding net layer.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model given in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional view of the cable accessory structure of the present utility model.
Fig. 2 is a state diagram of the cable attachment structure of the present utility model in press fit with the shielding mesh layer of the cable.
Fig. 3 is a schematic cross-sectional view of a shield ring in the construction of the cable attachment of the present utility model.
Fig. 4 is a schematic diagram of the positional relationship between the shielding ring and the metal sleeve and the cable clamp in the present utility model.
Fig. 5 is an enlarged schematic view of the cable accessory structure of the present utility model in press-fit with the shielding mesh layer.
Fig. 6 is a schematic view of the structure of the cable accessory according to the present utility model, in which the metal sleeve is of a bent type.
Reference numerals illustrate:
1-a connecting nut;
2-a metal sleeve;
3-a cable clamp;
4-shielding rings;
5-a retainer ring;
6-shielding net layer;
7-conducting wires;
21-a third compaction cone;
31-an internally threaded connection section;
32-fourth compaction cone;
41-a first compaction cone;
42-a second compaction cone;
43-outer connection face;
44-inner connection surface.
Detailed Description
The technical scheme of the utility model is further described in detail below with reference to the attached drawings and the preferred embodiments.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
An embodiment of a cable accessory structure using a shield ring to secure a shield mesh:
the utility model provides a use cable accessory structure of shielding net is fixed to shielding circle, as shown in fig. 1 through 5, includes coupling nut 1, metal sleeve 2, cable clamp 3 and shielding circle 4, and coupling nut 1 passes through retaining ring 5 rotation assembly at metal sleeve 2's front end, and coupling nut 1 is used for realizing the locking after connector and the adapter connector are inserted. The cable comprises a shielding mesh layer 6 and wires 7 arranged in the shielding mesh layer. The shielding ring 4 is in a circular ring shape, the front end of the electric connector is one end which is inserted into the adapter connector, the front end face of the shielding ring 4 is a first compression conical surface 41, the diameter of the first compression conical surface 41 is gradually increased from front to back, the rear end face of the shielding ring is a second compression conical surface 42, the diameter of the second compression conical surface 42 is gradually reduced from front to back, the rear end of the first compression conical surface 41 is connected with the front end of the second compression conical surface 42 through an outer connecting surface 43, the front end of the first compression conical surface 41 is connected with the rear end of the second compression conical surface 42 through an inner connecting surface 44, the outer connecting surface 43 is parallel to the inner connecting surface 44, and the inner/outer connecting surfaces extend along the front-rear direction, so that the cross section of the shielding ring is trapezoid. Preferably, in this embodiment, the cross section of the shielding ring is isosceles trapezoid, that is, the projection lengths of the first compression conical surface and the second compression conical surface on the central axis of the shielding ring are consistent. The cable clamp 3 has an internally threaded connection section 31 which mates with the rear end external thread of the metal sleeve so that the cable clamp is in threaded connection with the metal sleeve. As shown in fig. 4, a shielding collar 4 is installed between the cable clamp 3 and the metal sleeve 2. In order to achieve a good compacting effect on the shielding mesh layer of the cable, the rear end of the metal sleeve 2 is provided with a third compacting conical surface 21 matched with the first compacting conical surface to compact the shielding mesh layer, and the inner wall of the cable clamp 3 is provided with a fourth compacting conical surface 32 matched with the second compacting conical surface to compact the shielding mesh layer.
As shown in fig. 5, when the shielding mesh layer 6 is fixed, firstly, the shielding ring 4 is installed in the shielding mesh layer 6, the shielding mesh layer 6 has a certain elastic deformation capability, the shielding ring can be radially outwards spread out to a certain extent, then the cable and the shielding ring are together and forwards installed into the rear end of the metal sleeve until the shielding ring 4 abuts against the third compression conical surface 21 arranged at the rear end of the metal sleeve, then the cable clamp is rotated to enable the cable clamp to be in threaded fit with the metal sleeve until the cable clamp axially compresses the shielding ring on the third compression conical surface 21, meanwhile, the second compression conical surface and the fourth compression conical surface 32 compress the shielding mesh layer to form a state shown in fig. 5, and the shielding mesh layer of the cable is compressed and fixed in the axial direction and the radial direction so as to realize stable contact conduction with the metal sleeve. Then, the cable clamp 3 is clamped to the cable, so that a certain tensile capacity is provided for the cable; specifically, the tail part of the cable clamp is provided with a screw 33 and a pressing plate 34, and the screw locks and fixes the pressing plate at the rear end of the cable clamp so as to radially press the cable; in order to protect the cable, a spring pad can be arranged between the pressing plate and the cable.
In this embodiment, because the extending directions of the first compression conical surface and the second compression conical surface are different, the method is different from the single inclined plane compression shielding layer in the prior art, and has better compression effect and stronger stability on the shielding net layer. If the shielding net layer is subjected to a backward pulling force, the second pressing conical surface may not be enough to completely avoid the backward falling of the shielding net layer, and at this time, because the backward pulling force and the first pressing conical surface are not in the same straight line, the first pressing conical surface may provide a stronger pressing stability, so as to avoid the possible play of the shielding net layer. Similarly, in some cases, the first and second compression conical surfaces cooperate to provide good retention of the shielding mesh when the cable is subjected to a forward force. Preferably, the extending direction of the first compression conical surface and the extending direction of the second compression conical surface form an included angle of 90 degrees.
In the above embodiment, the straight connector is merely illustrated as an example, and similarly, as shown in fig. 6, the metal sleeve may also have a bent structure, so as to be applied to the bent connector.
Embodiments of the electrical connector:
the electric connector comprises a connecting nut, a metal sleeve, a cable clamp, a shielding ring and a contact piece, wherein the contact piece is assembled in the metal sleeve through an insulator, the contact piece is used for being connected with a wire of a cable, the connecting nut, the metal sleeve, the cable clamp and the shielding ring form a cable accessory structure, and the cable accessory structure is the cable accessory structure using the shielding ring to fix a shielding net in the embodiment, and the details are not repeated.
The foregoing is merely a preferred embodiment of the present utility model, and is not described in detail in the prior art; any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model, without departing from the technical scope of the present utility model, will still fall within the scope of the present utility model.
Claims (10)
1. A cable accessory structure using a shielding ring to fix a shielding net, characterized in that: including metal sleeve, cable clamp and install the shielding circle between metal sleeve and cable clamp, the preceding terminal surface of shielding circle is the diameter from front to back first conical surface that compresses tightly that gradually increases, the rear end face of shielding circle is the diameter from front to back second conical surface that compresses tightly that gradually reduces, metal sleeve's rear end is equipped with the third conical surface that compresses tightly with first conical surface cooperation in order to compress tightly the shielding stratum reticulare, cable clamp has with metal sleeve's rear end external screw thread complex internal thread linkage section, the inner wall of cable clamp is equipped with and compresses tightly the conical surface with the fourth of second conical surface cooperation in order to compress tightly the shielding stratum reticulare.
2. The cable attachment structure using a shield ring to secure a shield mesh according to claim 1, wherein: the projection length of the first compaction conical surface and the projection length of the second compaction conical surface on the central axis of the shielding ring are consistent.
3. The cable attachment structure using a shield ring to secure a shield mesh according to claim 2, wherein: the rear end of the first compaction conical surface is connected with the front end of the second compaction conical surface through an outer connecting surface, the front end of the first compaction conical surface is connected with the rear end of the second compaction conical surface through an inner connecting surface, the outer connecting surface extends along the front-back direction, and the outer connecting surface is parallel to the inner connecting surface, so that the cross section of the shielding ring is isosceles trapezoid.
4. A cable accessory structure using a shielding ring to secure a shielding net according to claim 2 or 3, wherein: the extending direction of the first compaction conical surface and the extending direction of the second compaction conical surface form an included angle of 90 degrees.
5. The cable attachment structure using a shield ring to secure a shield mesh according to claim 1, wherein: the connecting nut is rotatably assembled at the front end of the metal sleeve through the check ring.
6. An electrical connector comprising a cable accessory structure and a contact, characterized in that: the cable accessory structure includes metal sleeve, cable clamp and installs the shielding circle between metal sleeve and cable clamp, the preceding terminal surface of shielding circle is the first conical surface that compresses tightly that the diameter from front to back gradually increases, the rear end face of shielding circle is the second conical surface that compresses tightly that the diameter from front to back gradually reduces, metal sleeve's rear end is equipped with and compresses tightly the third conical surface that compresses tightly the shielding stratum reticulare with first conical surface cooperation, cable clamp has with metal sleeve's rear end external screw thread complex internal thread linkage section, the inner wall of cable clamp is equipped with and compresses tightly the conical surface with the fourth of second conical surface cooperation in order to compress tightly the shielding stratum reticulare, the contact is installed in metal sleeve and is used for being connected with the wire of shielding stratum reticulare inside through the insulator.
7. The electrical connector of claim 6, wherein: the projection length of the first compaction conical surface and the projection length of the second compaction conical surface on the central axis of the shielding ring are consistent.
8. The electrical connector of claim 7, wherein: the rear end of the first compaction conical surface is connected with the front end of the second compaction conical surface through an outer connecting surface, the front end of the first compaction conical surface is connected with the rear end of the second compaction conical surface through an inner connecting surface, the outer connecting surface extends along the front-back direction, and the outer connecting surface is parallel to the inner connecting surface, so that the cross section of the shielding ring is isosceles trapezoid.
9. The electrical connector of claim 7 or 8, wherein: the extending direction of the first compaction conical surface and the extending direction of the second compaction conical surface form an included angle of 90 degrees.
10. The electrical connector of claim 6, wherein: the connecting nut is rotatably assembled at the front end of the metal sleeve through the check ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322167574.5U CN220753924U (en) | 2023-08-11 | 2023-08-11 | Cable accessory structure using shielding ring to fix shielding net and electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322167574.5U CN220753924U (en) | 2023-08-11 | 2023-08-11 | Cable accessory structure using shielding ring to fix shielding net and electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220753924U true CN220753924U (en) | 2024-04-09 |
Family
ID=90554120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322167574.5U Active CN220753924U (en) | 2023-08-11 | 2023-08-11 | Cable accessory structure using shielding ring to fix shielding net and electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220753924U (en) |
-
2023
- 2023-08-11 CN CN202322167574.5U patent/CN220753924U/en active Active
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