Communication cable connection structure applied to high-frequency electromagnetic field

Abstract

The utility model relates to a communication cable connection structure applied to a high-frequency electromagnetic field, which comprises a communication cable, a connection joint, a heat-shrinkable sleeve and sealant, and is characterized in that the communication cable comprises a communication core wire A, a communication core wire B, a shielding layer and an external protective sleeve, and the two communication core wires penetrate through the shielding layer in the form of twisted pairs; the connecting joint comprises a connecting joint base body, a connecting joint terminal, a connecting joint tail sleeve and a connecting joint tail clamp, the connecting joint terminal is arranged on the connecting joint base body, the connecting joint tail sleeve is fixedly connected with the connecting joint base body, the two communication core wires and the shielding layer penetrate out of the front end of the external protective sleeve and extend into the connecting joint tail sleeve, the front ends of the two communication core wires are respectively welded with the connecting joint terminal, and the connecting joint tail clamp is arranged on the connecting joint base body. A heat-shrinkable sleeve sleeves the outer side of the welding position, the inner rear portion of the connector tail sleeve is filled with solidified sealing cement gum, and the connector tail clamp is arranged on the rear side of the connector tail sleeve to clamp and fix the communication cable. The structure is good in electromagnetic shielding performance, and the conductive performance, the mechanical strength and the dustproof, waterproof and moistureproof performance of cable connection are improved.

Description

Technical Field

[0001] This utility model relates to the field of communication cables, specifically to a communication cable connection structure applied to high-frequency electromagnetic fields. Background Technology

[0002] In recent years, the demand for signal transmission in high-frequency electromagnetic field environments has been increasing. Typically, communication cables employ a braided shielding structure to meet the requirements for electromagnetic interference resistance. However, more importantly, the cable connection structure is the weakest link in the signal transmission line. The core of the cable connection structure lies in achieving reliable signal transmission between different cable structures and different devices. This requires precise connection design and electromagnetic shielding protection to ensure that the joint structure has reliable and stable electrical and mechanical properties, as well as electromagnetic interference resistance and sealing performance. Utility Model Content

[0003] The purpose of this invention is to provide a communication cable connection structure for use in high-frequency electromagnetic fields. This structure has good electromagnetic shielding performance and improves the conductivity, mechanical strength, dustproof, waterproof and moisture-proof performance of the cable connection.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a communication cable connection structure for high-frequency electromagnetic fields, comprising a communication cable, a connector, a heat-shrink tubing, and sealing putty. The communication cable includes a communication core wire A, a communication core wire B, a shielding layer, and an outer protective sleeve. The communication core wires A and B are arranged in a twisted pair within the shielding layer. The connector includes a connector base, connector terminals, a connector tail sleeve, and a connector tail clamp. The connector terminals are disposed on the connector base, and the connector tail sleeve is fixedly connected to the connector base. The communication core wires A and B and the shielding layer extend from the front end of the outer protective sleeve and into the connector tail sleeve. The front ends of the communication core wires A and B are respectively welded to the connector terminals, and a heat-shrink tubing is fitted outside the welding position. The rear part of the connector tail sleeve is filled with cured sealing putty, and the connector tail clamp clamps and fixes the communication cable behind the connector tail sleeve.

[0005] Furthermore, the communication cable also includes a shielding wire. The shielding layer includes a cable braided shielding layer and a core wire braided shielding layer. The communication core wires A and B are twisted in pairs and run inside the core wire braided shielding layer. The cable braided shielding layer is sleeved on the outside of the core wire braided shielding layer. The shielding wire runs between the cable braided shielding layer and the core wire braided shielding layer.

[0006] The communication core wire A, communication core wire B, core wire braided shielding layer, shielding wire, and cable braided shielding layer pass through the front end of the outer protective sleeve and extend into the tail sleeve of the connector. The exposed core wire braided shielding layer and cable braided shielding layer are twisted into strips and soldered to the shielding connecting wire. The shielding connecting wire is soldered to the shielding wire. The front end of the shielding wire is soldered to the connector terminal.

[0007] Furthermore, the front part of the tail sleeve of the connecting joint is connected to the base of the connecting joint by a threaded connection.

[0008] Furthermore, the communication cable is a flexible control cable.

[0009] Furthermore, the front end of the outer protective sleeve of the communication cable extends 8mm into the rear end face of the connector tail sleeve.

[0010] Furthermore, the connector tail clamp secures the communication cable by means of a bolt connection using locking screws.

[0011] Compared with the prior art, the present invention has the following advantages: The present invention provides a communication cable connection structure for use in high-frequency electromagnetic fields. The structure has good electromagnetic shielding performance and can ensure the stability and reliability of signal transmission in high-frequency electromagnetic fields. At the same time, the structure adopts a combination of terminal welding, tail clip fixing and putty sealing to greatly improve the conductivity and mechanical strength of the cable connection. In addition, the structure also meets the requirements of dustproof, waterproof and moisture-proof by using heat shrink tubing and filling sealant. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the communication cable connection structure according to an embodiment of the present invention.

[0013] In the diagram: 1. Communication cable; 11. Communication core wire A; 12. Communication core wire B; 13. Shielding wire; 14. Cable braided shielding layer; 15. Core wire braided shielding layer; 16. Shielding connecting wire; 2. Connecting connector; 21. Connecting connector base; 22. Connecting connector terminal; 23. Connecting connector tail sleeve; 24. Connecting connector tail clamp; 25. Locking screw; 3. Heat shrink tubing; 4. Sealing putty. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] like Figure 1 As shown, this embodiment provides a communication cable connection structure for high-frequency electromagnetic fields, including a communication cable 1, a connector 2, a heat-shrink tubing 3, and sealing putty 4. The communication cable 1 includes communication core wire A 11, communication core wire B 12, a shielding layer, and an outer protective sleeve. The communication core wires A 11 and B 12 are twisted in pairs and run through the shielding layer. The connector 2 includes a connector base 21, a connector terminal 22, a connector end sleeve 23, and a connector end clip 24. The connector terminal 22 is disposed on the connector base 21, and the connector end sleeve 23 is fixedly connected to the connector base 21. The communication core wires A 11, B 11, and the shielding layer pass through the front end of the outer protective sleeve and extend into the connector end sleeve 23. The communication core wires A 11 and B 12... The front end of 12 is welded to the connector terminal 22, and a heat shrink sleeve 3 is sleeved on the outside of the welding position. The rear part of the connector tail sleeve 23 is filled with cured sealant 4. The connector tail clamp 24 clamps and fixes the communication cable 1 on the rear side of the connector tail sleeve 23.

[0018] The communication cable 1 is a flexible control cable. Communication core wires A 11 and B 12 are twisted pairs to form the entire communication cable. Specifically, the communication cable also includes a shield 13. The shielding layer includes a cable braided shielding layer 14 and a core wire braided shielding layer 15. Communication core wires A 11 and B 12 are twisted pairs and run through the core wire braided shielding layer 15. The cable braided shielding layer 14 is fitted over the core wire braided shielding layer 15, and the shield 13 runs between the cable braided shielding layer 14 and the core wire braided shielding layer 15.

[0019] In this embodiment, the cable braided shielding layer 14 and the core wire braided shielding layer 15 are made of silver-plated copper. The braiding coverage of the cable braided shielding layer 14 and the core wire braided shielding layer 15 is ≥95%.

[0020] The communication core wire A 11, communication core wire B 12, core wire braided shielding layer 15, shielding wire 13, and cable braided shielding layer 14 extend from the front end of the outer protective sleeve and into the connector tail sleeve 23. The front end of the outer protective sleeve of the communication cable 1 also extends a short section into the connector tail sleeve 23. The exposed core wire braided shielding layer 15 and cable braided shielding layer 14 are twisted into strips and soldered to the shielding connecting wire 16. The shielding connecting wire 16 is then soldered to the shielding wire 13. The front end of the shielding wire 13 is soldered to the connector terminal 22.

[0021] In this embodiment, the front part of the connector tail sleeve 23 is connected to the connector base 21 via a threaded connection. The connector tail clip 24 is used to lock and fix the communication cable 1 via a bolt connection using a locking screw 25.

[0022] The installation of the core wire braided shielding layer 15, the cable braided shielding layer 14, and the shielding wire 13 can ensure that the communication signal is not affected by external electromagnetic interference.

[0023] The communication cable cores 11 and 12 are connected to the connector terminal 22 by welding, and the communication cable is clamped and fixed by the tail clip 24, which can ensure the conductivity and mechanical strength of the connection structure.

[0024] The heat shrink tubing 3 and the sealing putty 4 can serve to fix and seal the parts.

[0025] When connecting, remove the outer protective sleeve of the communication cable 1 to expose the communication core wire A 11, the communication core wire B 12, the shield wire 13, the cable braided shield layer 14, and the core wire braided shield layer 15.

[0026] The exposed cable braided shielding layer 14 and the core wire braided shielding layer 15 are twisted into strips, and the core wire braided shielding layer 15 is soldered together with the shielding connecting wire 16. The cable braided shielding layer 15 is then soldered together with the shielding wire 13.

[0027] Insert the communication cable 1 into the tail sleeve 23 of the connector, and the communication cable 1 enters the rear end face of the tail sleeve 23 of the connector by 8mm.

[0028] The connector tail clip 24 is fixed to the communication cable 1 on the rear side of the connector tail sleeve 23 by bolting with locking screws 25.

[0029] Use soldering to solder communication core wire A 11, communication core wire B 12, and shield wire 13 to the connector terminal 22 respectively. Before soldering, put heat shrink tubing 3 on communication core wire A 11, communication core wire B 12, and shield wire 13.

[0030] The heated heat-shrink tubing 3 completely covers the exposed metal parts of the communication core wire A11, communication core wire B12, and shielding wire 13 welded to the connection structure terminal 22. The heat-shrink tubing 3 forms the first layer of internal insulation and provides dustproof, waterproof, and moisture-proof protection.

[0031] The cable braided shielding layer 14, the core wire braided shielding layer 15, the shielded connecting wire 16, the shielded wire 13, and the connecting connector 2 together form the signal transmission shielding layer.

[0032] The connector end sleeve 23 is locked to the connector base 21 via threads. The pipe thread connection forms a second layer of dustproof, waterproof and moisture-proof protection.

[0033] The sealant 4 is filled into the inner side of the rear end of the connector sleeve 23. After the sealant 4 cures, it creates a closed space within the connection structure, forming a third layer of dustproof, waterproof, and moisture-proof protection.

[0034] Sealing putty 4 is in the form of AB components. It is soft when it is first filled and has good sealing performance, insulation performance and mechanical strength after curing.

[0035] Use the locking screw 25 to fix the connector tail clip 24 to the outer protective sleeve of the communication cable 1 on the rear side of the connector tail sleeve 23, so that the internal terminal solder joint will not be affected by the weight of the cable or external forces.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its scope of protection shall still fall within the protection scope of this utility model.

Claims

1. A communication cable connection structure for use in high-frequency electromagnetic fields, characterized in that, The device includes a communication cable, a connector, a heat-shrink tubing, and sealant. The communication cable includes a communication core wire A, a communication core wire B, a shielding layer, and an outer protective sheath. The communication core wires A and B are twisted pairs within the shielding layer. The connector includes a connector base, connector terminals, a connector tail sleeve, and a connector tail clamp. The connector terminals are located on the connector base, and the connector tail sleeve is fixedly connected to the connector base. The communication core wires A and B, along with the shielding layer, extend from the front end of the outer protective sheath and into the connector tail sleeve. The front ends of the communication core wires A and B are welded to the connector terminals, and a heat-shrink tubing is fitted outside the welded areas. The rear part of the connector tail sleeve is filled with cured sealant, and the connector tail clamp clamps and secures the communication cable behind the connector tail sleeve.

2. The communication cable connection structure for high-frequency electromagnetic fields according to claim 1, characterized in that, The communication cable also includes a shielding wire. The shielding layer includes a cable braided shielding layer and a core wire braided shielding layer. The communication core wire A and the communication core wire B are twisted in pairs and run inside the core wire braided shielding layer. The cable braided shielding layer is sleeved on the outside of the core wire braided shielding layer. The shielding wire runs between the cable braided shielding layer and the core wire braided shielding layer. The communication core wire A, communication core wire B, core wire braided shielding layer, shielding wire, and cable braided shielding layer pass through the front end of the outer protective sleeve and extend into the tail sleeve of the connector. The exposed core wire braided shielding layer and cable braided shielding layer are twisted into strips and soldered to the shielding connecting wire. The shielding connecting wire is soldered to the shielding wire. The front end of the shielding wire is soldered to the connector terminal.

3. The communication cable connection structure for high-frequency electromagnetic fields according to claim 1, characterized in that, The front part of the tail sleeve of the connecting joint is connected to the base of the connecting joint by a threaded connection.

4. The communication cable connection structure for high-frequency electromagnetic fields according to claim 1, characterized in that, The communication cable is a flexible control cable.

5. The communication cable connection structure for high-frequency electromagnetic fields according to claim 1, characterized in that, The front end of the outer protective sheath of the communication cable extends 8mm into the rear end face of the connector tail sleeve.

6. The communication cable connection structure for high-frequency electromagnetic fields according to claim 1, characterized in that, The connector tail clamp secures the communication cable with a bolt connection using locking screws.

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