Shielding assembly for cable metal connector

Abstract

The utility model discloses a shielding assembly for a cable metal connector, which comprises a fixing ring connected with a cable core, an insulating wrapping piece for enhancing the shielding effect is fixedly arranged in the fixing ring, and a pressing mechanism for pressing and limiting the cable cores with different diameters is also arranged in the fixing ring. The defect that in the prior art, a shielding assembly cannot intelligently adapt to cable diameter changes is overcome. When the diameter of the cable is small, the shielding member may damage an insulating layer or a conductor of the cable due to overlarge pressing force; and when the diameter of the cable is relatively large, the shielding piece can not form an effective shielding layer due to insufficient pressing force, so that the problem of electromagnetic interference leakage or signal quality reduction is caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector parts, and in particular to a shielding assembly for a cable metal connector. BACKGROUND

[0002] In high-speed trains, cables are the main medium for transmitting signals and energy. Whether it is a door access control system or a brake control system on the train, or a communication and monitoring system, it needs to be connected through an interference-free signal. Therefore, the cable needs to be reliably shielded to ensure the safe transmission of highly sensitive measurement data. Figure 7 As shown in the prior art, the cable 103 generally needs to pass through the metal connector 101 to enter the interior of the device. When the cable 103 passes through the metal connector 101, the cable 103 needs to strip off the outermost protective layer, and the cable core with the insulating net is inserted into the connecting hole 102 of the metal connector 101. However, there is a large unshielded space between the connecting hole 102 and the cable core 104, which causes discontinuous interference in the signal transmitted by the cable 103.

[0003] After searching, Chinese patent application CN209516589U discloses a shielding assembly for a cable metal connector. The connection flange can shield the connection port of the metal connector, avoiding the exposure of the cable core of the cable. The sleeve is sleeved on the cable, and the shielding net of the cable can be covered on the outside of the sleeve and fixed by the sleeve ring. The sleeve ring and the sleeve can shield the cable, avoiding the exposure of the cable. At the same time, the shielding net, the sleeve and the sleeve ring are at the same potential, which enhances the shielding effect of the cable transmission signal and avoids the interference of the cable signal.

[0004] However, in the implementation of the above technical solution, the following technical problems still exist: the shielding assembly in the above solution cannot intelligently adapt to the change of the cable diameter. When the cable diameter is small, the shielding member may damage the cable insulation layer or conductor due to excessive compression force; when the cable diameter is large, the shielding member may not form an effective shielding layer due to insufficient compression force, resulting in electromagnetic interference leakage or signal quality degradation.

[0005] Therefore, it is an urgent problem for the utility model to provide a shielding assembly for a cable metal connector that can automatically adjust the compression force according to the cable diameter during use. CONTENT OF THE UTILITY MODEL

[0006] In order to overcome the above technical problems, the utility model discloses a shielding assembly for cable metal connector which can automatically adjust the compression force according to the diameter of the cable during use.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a shielding assembly for cable metal connector, which comprises a fixing ring connected with the cable core, an insulation wrapping member for strengthening the shielding effect is fixedly arranged in the fixing ring, and a compression mechanism for compressing and limiting the cable core with different diameters is also arranged in the fixing ring.

[0008] Preferably, a plurality of metal pieces parallel to the circumferential direction of the fixing ring are fixedly arranged on the inner side wall of the fixing ring.

[0009] Preferably, a baffle is fixedly arranged on the cable and cooperates with the fixing ring.

[0010] Preferably, the insulation wrapping member is a nanocomposite material which can provide stronger electromagnetic shielding effect.

[0011] Preferably, the compression mechanism comprises a pressing block, a tension spring and a sliding block.

[0012] A plurality of installation grooves are formed on the circumferential surface of the fixing ring along the circumferential direction of the fixing ring, and a pressing block with a bottom surface in contact with the cable core is slidably arranged in each installation groove.

[0013] Preferably, the cross section of the pressing block is in the shape of a trapezoid with one end having a small area and the other end having a large area, and the bottom surface in contact with the cable core is in the shape of a circular arc.

[0014] Preferably, an adjusting assembly is slidably arranged on the surface of the fixing ring, which drives the pressing block to slide up and down in the installation groove so as to compress the cable with different diameters.

[0015] Preferably, the adjusting assembly comprises a sliding ring, a plug rod and a spring.

[0016] A sliding ring cooperates with the pressing block is slidably arranged on the fixing ring, a plug rod is slidably arranged through the sliding ring, a limiting plate is fixedly arranged on one end of the plug rod, a spring is arranged on the plug rod and abuts against the surface of the sliding ring and the side surface of the limiting plate, respectively, and a plurality of plug holes cooperated with the plug rod are formed on the circumferential surface of the fixing ring.

[0017] According to the technical scheme, the shielding assembly for the cable metal connector has the beneficial effects that the cable core is pressed and limited by the pressing mechanism, the tight connection between the cable core and the fixing ring is ensured, the cable core is prevented from loosening or falling off during use, the shielding assembly can be applied to cable cores with different diameters, and the versatility and flexibility of the assembly are improved.

[0018] Other features and advantages of the present application will be described in detail in the following specific embodiments; and the parts not involved in the present application are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the following specific embodiments, but do not constitute a limitation on the present application. In the drawings:

[0020] Figure 1 is a perspective structural schematic of the shielding assembly for the cable metal connector provided in a preferred embodiment Figure 1 ;

[0021] Figure 2 is an exploded view of the shielding assembly for the cable metal connector provided in a preferred embodiment

[0022] Figure 3 is a shielding assembly perspective structural schematic of the shielding assembly for the cable metal connector provided in a preferred embodiment Figure 2 ;

[0023] Figure 4 is a sectional perspective structural schematic view of the shielding assembly for the cable metal connector provided in a preferred embodiment

[0024] Figure 5 is a plan view of the shielding assembly for the cable metal connector provided in a preferred embodiment

[0025] Figure 6 is Figure 5 a sectional view of A-A in

[0026] Figure 7 is a connection schematic view of the metal connector and the cable of the prior art.

[0027] EXPLANATION OF REFERENCE NUMERALS

[0028] 101. Metal connector; 102. Connecting hole; 103. Cable; 201. Retaining ring; 202. Baffle; 203. Insulating wrapping; 204. Metal part; 300. Clamping mechanism; 301. Mounting groove; 302. Clamping block; 303. Slide groove; 304. Tension spring; 305. Slider; 400. Adjusting assembly; 401. Sliding ring; 402. Socket; 403. Insert rod; 404. Limiting plate; 405. Spring. Detailed Implementation

[0029] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0030] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0031] Reference Figures 1-6 As shown, a shielding assembly for a cable metal connector includes: a fixing ring 201 connected to a cable core, an insulating wrapping 203 for enhancing shielding is fixedly disposed inside the fixing ring 201, and a clamping mechanism 300 for clamping and limiting cable cores of different diameters is also disposed inside the fixing ring 201.

[0032] In use, the insulating wrapping 203 is fixed inside the fixing ring 201. The function of the insulating wrapping 203 is to enhance the shielding effect and provide a certain degree of insulation protection. The cable core is passed through the fixing ring 201. According to the diameter of the cable core, the position and force of the clamping mechanism 300 are adjusted to ensure that the cable core is firmly clamped inside the fixing ring 201. Under the action of the clamping mechanism 300, the cable core is stably fixed inside the fixing ring 201. At the same time, the insulating wrapping 203 enhances the shielding effect. By clamping and limiting the cable core through the clamping mechanism 300, a tight connection between the cable core and the fixing ring 201 is ensured, preventing the cable core from loosening or falling off during use. This also allows the shielding assembly to be used with cable cores of different diameters, improving the versatility and flexibility of the assembly.

[0033] Reference Figures 2-4 As shown, the inner sidewall of the fixing ring 201 is fixedly provided with multiple sets of metal parts 204 parallel to its circumferential direction at intervals.

[0034] In the above scheme, when the internal wires generate electromagnetic phenomena, they are blocked by multiple metal parts 204, thereby destroying the electromagnetic field generated around the wires and preventing the electromagnetic field from affecting the surrounding wires.

[0035] Referring to Figures 1-2 As shown in the figure, the fixed ring 201 is sleeved on the cable 103 with the baffle 202 used in cooperation.

[0036] In the above scheme, the fixed ring 201 is sleeved on the cable 103 with the baffle 202, and the correct cooperation between the baffle 202 and the fixed ring 201 is ensured, which helps to correctly position the fixed ring 201 during assembly and ensures the stable connection between the fixed ring 201 and the cable 103.

[0037] Referring to Figures 2-4 As shown in the figure, the insulating wrapping member 203 is a nanocomposite material that can provide stronger electromagnetic shielding performance.

[0038] In the above scheme, the nanocomposite material has excellent electromagnetic shielding performance and can more effectively block the interference of external electromagnetic waves. At the same time, the nanocomposite material generally has good weather resistance and corrosion resistance and can maintain stable performance in harsh environments.

[0039] Referring to Figures 3-6 As shown in the figure, the pressing mechanism 300 includes a pressing block 302, a tension spring 304, and a sliding block 305; wherein,

[0040] The circumferential surface of the fixed ring 201 is provided with a plurality of mounting grooves 301 along the circumferential direction thereof, and a pressing block 302 with a bottom surface in contact with the cable core is slidably arranged in each mounting groove 301. The side surface of the pressing block 302 is fixedly provided with a sliding block 305, and the inner side wall of the mounting groove 301 is provided with a sliding groove 303 for sliding of the sliding block 305. The sliding groove 303 is fixedly provided with a tension spring 304 at the bottom end thereof, which is fixedly connected with the sliding block 305.

[0041] In the above scheme, according to the diameter of the cable core and the required pressing force, the pressing block 302 is driven to slide in the mounting groove 301, so that the bottom surface of the pressing block 302 can be in contact with the cable core to press and limit the cable core, so that the shielding assembly can be applicable to cable cores of different diameters, improving the versatility and flexibility of the assembly.

[0042] Referring to Figures 3-4 As shown in the figure, the cross section of the pressing block 302 is in the shape of a trapezoid with one end having a small area and the other end having a large area, and the bottom surface in contact with the cable core is in the shape of a circular arc.

[0043] In the above scheme, the trapezoidal cross section of the pressing block 302 facilitates the sliding of the pressing block 302 in the mounting groove 301, and the circular arc-shaped bottom surface has a larger contact area with the cable core, increasing the stability of the pressing and reducing the possibility of loosening or falling off of the cable core during use.

[0044] Referring to Figures 1-3As shown, the fixing ring 201 is surface-slidly provided with an adjusting assembly 400 for driving the pressing block 302 to slide up and down in the mounting groove 301 so as to press the cable 103 of different diameters.

[0045] In the above scheme, according to the diameter of the cable core and the required pressing force, the position of the pressing block 302 in the mounting groove 301 is adjusted by the adjusting assembly 400, and when the cable core passes through the fixing ring 201, the cable core is pressed and limited by the adjusting assembly 400 driving the pressing block 302. The adjusting assembly 400 can ensure that the pressing block 302 stably and reliably presses and limits the cable core, thereby improving the shielding performance and connection stability of the shielding assembly.

[0046] Referring to Figures 4-6 As shown, the adjusting assembly 400 comprises a sliding ring 401, an insertion rod 403 and a spring 405, wherein,

[0047] The fixing ring 201 is surface-slidly provided with the sliding ring 401 used in cooperation with the pressing block 302, the insertion rod 403 is slidly penetrated through the sliding ring 401, one end of the insertion rod 403 is fixedly provided with a limiting plate 404, and the insertion rod 403 is sleeved with the spring 405 which is arranged at the surface of the sliding ring 401 and the side surface of the limiting plate 404 in a manner of abutting at both ends, and the circumferential surface of the fixing ring 201 is provided with a plurality of insertion holes 402 used in cooperation with the insertion rod 403.

[0048] In the above scheme, according to the diameter of the cable core and the required pressing force, the sliding ring 401 is slid along the circumferential direction of the fixing ring 201, so that the pressing block 302 on the sliding ring 401 is in contact with the cable core, the insertion rod 403 is inserted into the corresponding insertion hole 402 by compressing the spring 405, so as to fix the position of the sliding ring 401, and under the elastic force of the spring 405, the insertion rod 403 can keep stable insertion state, preventing the sliding ring 401 from moving during the pressing process, and under the action of the insertion rod 403 and the spring 405, the sliding ring 401 and the pressing block 302 stably press and limit the cable core.

[0049] In summary, the utility model provides a kind of shielding assembly for cable metal connector, when using, the cable core is passed through fixed ring 201, and the baffle 202 of suitable position is fixed on cable core, baffle 202 is used in cooperation with fixed ring 201, it is helpful to fix cable core and prevent its sliding, the installation slot 301 on fixed ring 201 is observed, and the pressing block 302 is slidably arranged in each installation slot 301, the pressing block 302 is kept certain elastic pressure in installation slot 301 by sliding block 305 and tension spring 304, according to the diameter of cable core, at this time, it can be realized by adjusting assembly 400.Sliding ring 401 is slid on fixed ring 201 to suitable position, so that plug rod 403 can be aligned with the insertion hole 402 above the pressing block 302 that needs to be adjusted, under the elastic force of compression spring 405, plug rod 403 is inserted into insertion hole 402, at this time sliding ring 401 is fixed.Then, sliding ring 401 is moved up and down, and the pressing block 302 used in cooperation with it is slid up and down in installation slot 301, until the circular arc bottom surface of pressing block 302 is closely fitted with cable core, to provide appropriate compression limit, after confirming that all pressing blocks 302 have been correctly adjusted and compressed cable core, insulating wrapping piece 203 is installed into fixed ring 201.Insulating wrapping piece 203 is made of nanometer composite material, and can provide stronger electromagnetic shielding effectiveness.

[0050] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the utility model within the technical concept of the utility model, and these simple modifications all belong to the protection scope of the utility model.

[0051] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the utility model will not further describe various possible combination manners.

[0052] In addition, various different embodiments of the utility model can also be combined arbitrarily, as long as they do not deviate from the idea of the utility model, and they should also be considered as disclosed by the utility model.

Claims

1. A shielding assembly for a cable metal connector, characterized by The shielding assembly comprises a fixing ring (201) connected with the cable core, an insulation wrapping member (203) for strengthening the shielding effect is fixedly arranged in the fixing ring (201), and a pressing mechanism (300) for pressing and limiting the cable core with different diameters is further arranged in the fixing ring (201).

2. A shielding assembly for a cable metal connector according to claim 1, characterized in that A plurality of metal members (204) parallel to the circumferential direction of the fixing ring (201) are fixedly arranged on the inner side wall of the fixing ring (201).

3. A shielding assembly for a cable metal connector according to claim 1, wherein A baffle (202) used in cooperation with the fixing ring (201) is fixedly arranged on the cable (103).

4. A shielding assembly for a cable metal connector according to claim 1, wherein The insulation wrapping member (203) is a nanocomposite material capable of providing stronger electromagnetic shielding effect.

5. A shielding assembly for a cable metal connector as defined in claim 1, wherein, The pressing mechanism (300) comprises a pressing block (302), a tension spring (304) and a sliding block (305). A plurality of installation grooves (301) are formed in the circumferential surface of the fixing ring (201) along the circumferential direction of the fixing ring (201), and a pressing block (302) with a bottom surface in contact with the cable core is slidingly arranged in each installation groove (301), a sliding block (305) is fixedly arranged on the side surface of the pressing block (302), a sliding groove (303) for sliding of the sliding block (305) is formed in the inner side wall of the installation groove (301), and a tension spring (304) with a fixed end connected with the sliding block (305) is fixedly arranged in the sliding groove (303).

6. A shielding assembly for a cable metal connector according to claim 5, wherein The cross section of the pressing block (302) is in the shape of a trapezoid with a small area at one end and a large area at the other end, and the bottom surface in contact with the cable core is in the shape of a circular arc.

7. A shielding assembly for a cable metal connector as defined in claim 5, wherein An adjusting assembly (400) for driving the pressing block (302) to slide up and down in the installation groove (301) so as to press the cable (103) with different diameters is slidingly arranged on the surface of the fixing ring (201).

8. A shielding assembly for a cable metal connector according to claim 7, wherein The adjusting assembly (400) comprises a sliding ring (401), a plug rod (403) and a spring (405). The sliding ring (401) used in cooperation with the pressing block (302) is slidingly arranged on the fixing ring (201), the plug rod (403) is slidingly arranged through the sliding ring (401), a limiting plate (404) is fixedly arranged at one end of the plug rod (403), the spring (405) is arranged in the sliding ring (401) and the limiting plate (404) in abutting contact, and a plurality of plug holes (402) used in cooperation with the plug rod (403) are formed in the circumferential surface of the fixing ring (201).

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