Plug cable assembly

The multi-layer structure design of the plug and cable assembly solves the problem of insufficient conductor insulation distance, achieves stable current flow and reliable signal transmission, extends the service life of the connection, and prevents external interference.

CN224217799UActive Publication Date: 2026-05-08TIANCHANGSHICHANGCHENGYIBIAOXIANLANYOUXIANGONGSI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANCHANGSHICHANGCHENGYIBIAOXIANLANYOUXIANGONGSI
Filing Date
2025-05-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing plug and cable assemblies cannot effectively guarantee conductor insulation distance, leading to short circuit faults, electromagnetic leakage, and unstable signal transmission, and the connection points are easily damaged.

Method used

It adopts a combination design of plug assembly, housing assembly and cable assembly, including plug block, plug pin, flexible tube, shell, outer insulation layer, outer shielding layer, filling layer, wire, inner insulation layer and inner shielding layer. The multi-layer structure ensures insulation and shielding effect, buffers vibration and forms a sealed space.

Benefits of technology

It improves the stability of current flow, reduces current leakage and signal radiation, extends the service life of connections, prevents the ingress of external substances, and ensures normal equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plug cables, and discloses a plug cable assembly, which comprises a plug assembly, a shell assembly and a cable assembly, the shell assembly is mounted at the rear end of the plug assembly, and the cable assembly is annularly distributed and mounted in the shell assembly; the cable assembly is arranged, so that current can flow according to a preset line, normal work of equipment connected with the cable is ensured, damage such as abrasion and scraping of a cable core under the influence of an external environment can be reduced to a certain extent, and outward radiation of signals in the cable can be effectively inhibited; the flexible through pipe is arranged, so that a buffering effect can be achieved, vibration and impact force which are directly transmitted to the connection part of the cable and the plug are reduced, the risk of connection looseness or damage is reduced, a sealed space is formed at the connection part of the plug and the cable, external substances such as moisture and dust are effectively prevented from entering the connection part, and the flexibility is large; and the service life of the device is prolonged to a certain extent.
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Description

Technical Field

[0001] This utility model relates to the field of plug and cable technology, and more specifically to a plug and cable assembly. Background Technology

[0002] The main function of a plug-cable assembly is to connect different devices through cables to achieve electrical connection and signal transmission. When the plug is inserted into the socket, the metal contact piece and the metal contact in the socket form a closed circuit, allowing current to pass through and drive the electrical equipment to operate.

[0003] When components are in operation, if the insulation distance between conductors cannot be effectively guaranteed, short circuits can easily occur if the insulating varnish layer on the conductor surface is damaged or aged. This can lead to electromagnetic leakage and the intrusion of external electromagnetic interference during signal transmission. Electromagnetic leakage can disperse signal energy, reducing signal strength and clarity. After prolonged operation, excessive bending at the connection points can cause damage, resulting in unstable electrical transmission.

[0004] Therefore, in order to solve the above problems, this application provides a plug cable assembly. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a plug cable assembly to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a plug cable assembly, including a plug assembly, a housing assembly and a cable assembly, wherein the housing assembly is installed on the rear end of the plug assembly, and the cable assembly is distributed in a ring and installed inside the housing assembly.

[0007] Preferably, the plug assembly includes a plug block, pins, and a flexible tube, wherein the pins are symmetrically distributed and fixedly installed on the front wall of the plug block, one end of the flexible tube is fixedly connected to the rear wall of the plug block, and the other end of the flexible tube is fixedly connected to the front wall of the housing assembly. This configuration helps to extend the service life of the device connection.

[0008] Preferably, the housing assembly includes an outer shell, an outer insulation layer, an outer shielding layer, and a filling layer. The outer shell is fixedly installed on the rear wall of the flexible conduit. The outer insulation layer is fixedly installed on the inner wall of the outer shell. The outer shielding layer is fixedly installed on the inner wall of the outer insulation layer. The filling layer is fixedly installed inside the outer shielding layer. The outer shell is made of plastic and mainly serves to insulate and protect the internal metal components. The outer insulation layer is made of PVC material, which has good insulation performance, chemical corrosion resistance, and a certain degree of flexibility, and is also low in cost. The outer shielding layer is made of metal foil, whose structure not only provides better shielding effect but also has a certain degree of flexibility, facilitating cable bending and installation.

[0009] Preferably, the cable assembly includes a conductor, an inner insulation layer, and an inner shielding layer. The conductor is fixedly mounted on the inner wall of the inner insulation layer, the inner insulation layer is fixedly mounted on the inner wall of the inner shielding layer, and the inner shielding layer is fixedly mounted on the inner wall of the filler layer. The conductor is made of copper, which has advantages such as excellent conductivity, good flexibility, and relatively low cost. The inner insulation layer is made of cross-linked polyethylene material, which has excellent heat resistance, chemical corrosion resistance, and mechanical strength, and can maintain good insulation performance under harsh conditions such as high temperature and high pressure. The inner shielding layer is composed of a metal braided mesh, which to a certain extent prevents the device from interfering with the normal operation of other electronic devices during operation.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This utility model, by incorporating a cable assembly, helps ensure that the current flows along a predetermined path, preventing current leakage to other unwanted places, thereby ensuring the normal operation of connected equipment. Furthermore, it can reduce wear, scratches, and other damage to the wire core caused by external environmental influences to a certain extent, and effectively suppress the outward radiation of signals from inside the cable.

[0012] This invention features a flexible conduit, which acts as a buffer, reducing the direct transmission of vibrations and impacts to the connection between the cable and plug, thus lowering the risk of loosening or damage. It also creates a sealed space at the connection between the plug and cable, effectively preventing moisture, dust, and other external substances from entering the connection area. Furthermore, its high flexibility extends the lifespan of the device to some extent. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure and some cross-sectional views of the present invention.

[0015] Figure 3 This is a schematic diagram of the conductor assembly structure of this utility model.

[0016] The attached figures are labeled as follows: 1. Plug assembly; 101. Plug block; 102. Plug pin; 103. Flexible tube; 2. Housing assembly; 201. Housing; 202. Outer insulation layer; 203. Outer shielding layer; 204. Filler layer; 3. Cable assembly; 301. Wire; 302. Inner insulation layer; 303. Inner shielding layer. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The plug cable involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Reference Figure 1-3 The present invention provides a plug and cable assembly, including a plug assembly 1, a housing assembly 2 and a cable assembly 3, wherein the housing assembly 2 is installed on the rear end of the plug assembly 1, and the cable assembly 3 is distributed in a ring and installed inside the housing assembly 2.

[0019] The plug assembly 1 includes a plug block 101, pins 102, and a flexible tube 103. The pins 102 are symmetrically distributed and fixedly installed on the front wall of the plug block 101. One end of the flexible tube 103 is fixedly connected to the rear wall of the plug block 101, and the other end of the flexible tube 103 is fixedly connected to the front wall of the housing assembly 2. The flexible tube 103 helps to extend the service life of the device connection.

[0020] The housing assembly 2 includes an outer shell 201, an outer insulation layer 202, an outer shielding layer 203, and a filling layer 204. The outer shell 201 is fixedly installed on the rear wall of the flexible conduit 103. The outer insulation layer 202 is fixedly installed on the inner wall of the outer shell 201. The outer shielding layer 203 is fixedly installed on the inner wall of the outer insulation layer 202. The filling layer 204 is fixedly installed inside the outer shielding layer 203. The outer shell 201 is made of plastic and mainly serves to insulate and protect the internal metal components. The outer insulation layer 202 is made of PVC material, which has good insulation performance, chemical corrosion resistance, and a certain degree of flexibility, and is also low in cost. The outer shielding layer 203 is made of metal foil, and its structure not only provides better shielding effect but also has a certain degree of flexibility, which facilitates the bending and installation of cables.

[0021] The cable assembly 3 includes a conductor 301, an inner insulation layer 302, and an inner shielding layer 303. The conductor 301 is fixedly installed on the inner wall of the inner insulation layer 302, the inner insulation layer 302 is fixedly installed on the inner wall of the inner shielding layer 303, and the inner shielding layer 303 is fixedly installed on the inner wall of the filler layer 204. The conductor 301 is made of copper, which has advantages such as excellent conductivity, good flexibility, and relatively low cost. The inner insulation layer 302 is made of cross-linked polyethylene material, which has excellent heat resistance, chemical corrosion resistance, and mechanical strength, and can maintain good insulation performance under harsh conditions such as high temperature and high pressure. The inner shielding layer 303 is composed of metal braided mesh, which to a certain extent prevents the device from interfering with the normal operation of other electronic equipment during operation.

[0022] The working principle of this utility model:

[0023] After the operator inserts the pin 102 into the slot, power is transmitted through the pin 102 and the flexible conduit 103 to the conductor 301, thus completing the power-on operation of the device. The outer shell 201 is made of plastic, which mainly serves to insulate and protect the internal metal components. The outer insulation layer 202 is made of PVC material, which has good insulation performance, chemical corrosion resistance, and a certain degree of flexibility, and is also low in cost. The outer shielding layer 203 is made of metal foil, whose structure not only provides better shielding effect, but also has a certain degree of flexibility, making it easy to bend and install the cable. The conductor 301 is made of copper, which has the advantages of excellent conductivity, good flexibility, and relatively low cost. The inner insulation layer 302 is made of cross-linked polyethylene material, which has excellent heat resistance, chemical corrosion resistance, and mechanical strength, and can maintain good insulation performance under harsh conditions such as high temperature and high pressure. The inner shielding layer 303 is composed of metal braided mesh, which to a certain extent prevents the device from interfering with the normal operation of other electronic equipment during operation.

[0024] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0025] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plug-cable assembly, comprising a plug assembly (1), a housing assembly (2), and a cable assembly (3), characterized in that: The housing assembly (2) is mounted on the rear end of the plug assembly (1), and the cable assembly (3) is arranged in a ring and mounted inside the housing assembly (2). The cable assembly (3) includes a conductor (301), an inner insulation layer (302), and an inner shielding layer (303). The conductor (301) is fixedly mounted on the inner wall of the inner insulation layer (302), the inner insulation layer (302) is fixedly mounted on the inner wall of the inner shielding layer (303), and the inner shielding layer (303) is fixedly mounted on the inner wall of the filler layer (204). The conductor (301) is made of copper, the inner insulation layer (302) is made of cross-linked polyethylene material, and the inner shielding layer (303) is made of metal braided mesh.

2. The plug cable assembly according to claim 1, characterized in that: The plug assembly (1) includes a plug block (101) and pins (102), wherein the pins (102) are symmetrically distributed and fixedly installed on the front wall of the plug block (101).

3. A plug and cable assembly according to claim 1, characterized in that: The plug assembly (1) includes a flexible tube (103), one end of which is fixedly connected to the rear wall of the plug block (101), and the other end of which is fixedly connected to the front wall of the housing assembly (2).

4. A plug and cable assembly according to claim 1, characterized in that: The housing assembly (2) includes a housing (201) and an outer insulation layer (202), wherein the housing (201) is fixedly installed on the rear wall of the flexible tube (103), and the outer insulation layer (202) is fixedly installed on the inner wall of the housing (201). The housing (201) is made of plastic, and the outer insulation layer (202) is made of PVC material.

5. A plug and cable assembly according to claim 1, characterized in that: The housing assembly (2) includes an outer shielding layer (203) and a filling layer (204), wherein the filling layer (204) is fixedly installed inside the outer shielding layer (203).