Composite cable with waterproof joint

Abstract

The utility model discloses a composite cable with waterproof joints, which relates to the field of cables and comprises a cable body and cable joints arranged at two ends of the cable body, and the cable body comprises a power line group, a signal line group, a composite material layer, a fiber material layer and a jacket. The power line group, the signal line group and the composite material layer are all arranged on the inner side of the fiber material layer, and the outer sheath wraps the outer side of the fiber material layer; the power line group comprises a positive line group, a negative line group and a ground line group, and the positive line group or the negative line group is coated with the composite material layer; the composite material layer also wraps the signal line group. According to the utility model, the interference problem between the power line and the signal line can be solved, the structure is simple, and the stability is strong.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to a comprehensive cable with a waterproof connector. Background Art

[0002] In the manufacturing process of LED display screens, in order to ensure that each LED lamp bead can work independently and efficiently, power and signal lines are usually supplied separately to each lamp board module. However, although this separate supply method has its advantages, it brings some inconveniences in practical applications, which are specifically manifested in the following aspects:

[0003] First of all, the power line and the signal line are arranged in parallel on the LED lamp board module, which may generate electromagnetic interference. Especially during the transmission of high-frequency signals, the current change of the power line will generate electromagnetic radiation to the nearby signal line, affecting the stability and accuracy of the signal. This interference can be manifested as signal delay, signal distortion or data error, thus affecting the display effect of the LED lamp board module.

[0004] Secondly, when the power line and the signal line are staggered or closely adjacent on the LED lamp board module, the electromagnetic coupling generated between them will be more serious. This electromagnetic coupling will not only cause electromagnetic interference on the signal line, but also cause noise on the power line itself, thus affecting the stability of the entire screen body.

[0005] Furthermore, since the LED lamp board module usually consists of multiple units, and each unit needs to be connected by a power line and a signal line. If these cables are not properly handled during the wiring process, with excessive bending, stretching or poor contact, etc., it may lead to unstable signal transmission and even abnormal operation of the screen body.

[0006] In addition, when the LED lamp board module operates for a long time, due to the increase in temperature, the power line and the signal line will have problems such as aging and oxidation, which will also exacerbate electromagnetic interference and affect the normal operation of the screen body. Content of the Utility Model

[0007] The technical problem to be solved by the utility model is to provide a comprehensive cable with a waterproof connector, which has a simple structure and strong anti-interference ability.

[0008] To solve the above technical problems, the present utility model provides a comprehensive cable with a waterproof joint, which includes a cable body and cable joints provided at both ends of the cable body. The cable body includes a power line group, a signal line group, a composite material layer, a fiber material layer and an outer sheath. The power line group, the signal line group and the composite material layer are all provided inside the fiber material layer, and the outer sheath is wrapped outside the fiber material layer. The power line group includes a positive line group, a negative line group and a ground line group, and the composite material layer covers the positive line group or the negative line group. The composite material layer also covers the signal line group.

[0009] As an improvement of the above solution, the composite material layer includes a first composite material layer and a second composite material layer. The signal line group includes four signal lines, the positive line group includes two positive lines, and the negative line group includes four negative lines.

[0010] One positive line in the positive line group and two signal lines in the signal line group are wrapped in the first composite material layer, and the other positive line in the positive line group and the other two signal lines in the signal line group are wrapped in the second composite material layer; or two negative lines in the negative line group and two signal lines in the signal line group are wrapped in the first composite material layer, and the other two negative lines in the negative line group and the other two signal lines in the signal line group are wrapped in the second composite material layer.

[0011] Among them, the form of being divided into two composite material layers can reduce the number of composite material layers wrapped outside the cable, save space and reduce costs.

[0012] As an improvement of the above solution, the outer walls of each signal line, positive line, negative line and ground line are all coated with an insulating layer to ensure the safety of construction workers.

[0013] As an improvement of the above solution, a filling material is filled between the inner side of the fiber material layer and the outer side of the composite material layer. The filling material can fill the gaps between the composite material layer, the power line group and the fiber material layer. In the case of dense installation of cables, the filling material can enhance the overall compressive strength of the cable, keep the cable stable during transportation and installation, and avoid deformation and damage due to vibration or extrusion.

[0014] As an improvement of the above solution, the cable joint includes a terminal, a terminal fixing seat and a terminal gland. The terminal fixing seat and the terminal gland are fitted together to form a fixing structure with an internal cavity. One end of the terminal is embedded in the internal cavity and connected to the cable body, and the other end extends out of the terminal fixing seat. The terminal fixing seat and the terminal gland are arranged inside the cable joint in an integral structure, so that the cable joint has a simple structure and strong stability. Since the terminal is fixedly embedded in the internal cavity, there will be no looseness when it is inserted into the LED lamp board.

[0015] As an improvement of the above solution, the integrated cable with a waterproof joint further includes a protective layer for wrapping the terminal fixing seat and the terminal gland. The protective layer is arranged outside the wire joint and semi-wraps the cable joint, which can prevent it from being damaged due to external factors during use and prevent water from entering due to gaps.

[0016] As an improvement of the above solution, the integrated cable with a waterproof joint further includes a waterproof rubber ring. The waterproof rubber ring is arranged at the connection between the protective layer and the terminal fixing seat to prevent moisture and humidity from invading the inside of the cable joint, extend the service life of the LED lamp board module and the cable joint, and reduce damage caused by a humid environment.

[0017] As an improvement of the above solution, a plug handle is arranged on the outside of the protective layer and a docking groove is arranged on the terminal fixing seat to enable users to better grip the cable joint. The docking groove is rectangular and matches the docking structure of the LED lamp board module.

[0018] The beneficial effects of implementing the present utility model are as follows:

[0019] For the integrated cable with a waterproof joint of the present utility model, the power line and the signal line are encapsulated in the same wire at the same time, and through the unique structure inside the wire, the interference problem between the power line and the signal line is effectively prevented, and the power and the signal are transmitted simultaneously;

[0020] Furthermore, the present utility model is also provided with a cable joint, through which the cable can be conveniently docked with the LED lamp board; at the same time, the cable joint is provided with a terminal gland and a terminal fixing seat, which has the function of protecting the wire from external forces, so as to avoid the core wire inside the cable joint from breaking or water entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a cross-sectional structure diagram of the first embodiment of the integrated cable with a waterproof joint of the present utility model;

[0022] Figure 2 is a cross-sectional structure diagram of the second embodiment of the integrated cable with a waterproof joint of the present utility model;

[0023] Figure 3 It is a sectional view structure diagram of the third embodiment of the integrated cable with a waterproof joint of the present utility model;

[0024] Figure 4 It is a sectional view structure diagram of the fourth embodiment of the integrated cable with a waterproof joint of the present utility model;

[0025] Figure 5 It is a three-dimensional structure diagram of the cable joint of the integrated cable with a waterproof joint of the present utility model;

[0026] Figure 6 It is a sectional view structure diagram of the cable joint of the integrated cable with a waterproof joint of the present utility model. Specific embodiments

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] See Figure 1 and Figure 5 , Figure 1 and Figure 5 which show the first embodiment of the integrated cable with a waterproof joint of the present utility model, including a cable body 1 and cable joints 9 provided at both ends of the cable body 1. Among them, the cable body 1 includes a power line group 2, a signal line group 3, a composite material layer 4, a fiber material layer 5 and an outer sheath 6; the power line group 2, the signal line group 3 and the composite material layer 4 are all arranged inside the fiber material layer 5, and the outer sheath 6 is wrapped outside the fiber material layer 5; the power line group 2 includes a positive line group 21, a negative line group 22 and a ground line group 23, and the composite material layer 4 covers the positive line group 21 or the negative line group 22 and also wraps the signal line group 3.

[0029] The outer sheath 6 is wrapped outside the fiber material layer 5 to provide protection for the fiber material layer 5 and the cables wrapped inside it, improve the overall mechanical strength of the cable, and at the same time ensure the waterproof performance of the cable; the fiber material layer 5 has good toughness and can withstand a large tensile force. Therefore, it is arranged in the cable to avoid cable breakage caused by excessive stretching during the installation process, and the fiber material layer 5 has good insulation performance. Therefore, it can effectively separate the cables inside the cable from the external environment and prevent current leakage to enable the cable to work safely; the composite material layer 4 wraps the positive line group 21 or the negative line group 22 to isolate the magnetic field influence generated between the positive line 211 and the negative line 221 by the composite material layer 4; at the same time, the composite material layer 4 has good stretching ability. By wrapping the composite material layer 4, it can provide protection for the signal line group 3 with poor toughness and prevent the signal line 31 from breaking.

[0030] It should be noted that the power line 24 and the signal line 31 are both copper wires with good electrical conductivity. Other materials with good performance can also be selected as the power line 24 and the signal line 31, but it is not limited thereto.

[0031] In this embodiment, the signal line group 3 includes four signal lines 31, the positive line group 21 includes two positive lines 211, and the negative line group 22 includes four negative lines 221; the four signal lines 31 are wrapped in a composite material layer 4 to better protect the signal lines 31. The four negative lines 221 are wrapped in the composite material layer 4 in an independent manner for each one, which can isolate the positive line 211 from the negative line 221 and prevent them from interfering with the signal.

[0032] See Figure 2 , Figure 2 which shows the second embodiment of the integrated cable with a waterproof joint of the present utility model. Different from the Figure 1 first embodiment shown, in this embodiment, the negative line group 22 is wrapped in a composite material layer 4 to isolate the positive line 211 from the negative line 221 and prevent them from interfering with the signal. The four signal lines 31 are arranged in the composite material layer 4 in an independently wrapped form for each one to better protect the signal lines 31.

[0033] See Figure 3 , Figure 3 which shows the third embodiment of the integrated cable with a waterproof joint of the present utility model. Different from the Figure 1 first embodiment shown, in this embodiment, there are a total of four composite material layers 4. Each composite material layer 4 wraps one signal line 31 and one negative line 221 to better protect the signal line 31 and the negative line 221, and isolate the positive line 211 from the negative line 221 to prevent interference with the signal.

[0034] See Figure 4 , Figure 4 which shows the fourth embodiment of the integrated cable with a waterproof joint of the present utility model. Different from the Figure 1 first embodiment shown, in this embodiment, the composite material layer 4 includes a first composite material layer 41 and a second composite material layer 42. Two negative lines 221 in the negative line group 22 and two signal lines 31 in the signal line group 3 are wrapped in the first composite material layer 41, and the other two negative lines 221 in the negative line group 22 and the other two signal lines 31 in the signal line group 3 are wrapped in the second composite material layer 42.

[0035] When the positive wire 211 and the negative wire 221 in the power cord 24 exist in the same section at the same time, they will interfere with the signal wire 31. Therefore, the composite material layer 4 needs to be used for separation. In actual applications, one positive wire 211 in the positive wire group 21 and two signal wires 31 in the signal wire group 3 can also be wrapped in the first composite material layer 41, and the other positive wire 211 in the positive wire group 21 and the other two signal wires 31 in the signal wire group 3 can be wrapped in the second composite material layer 42. However, this is not a limitation. As long as it is ensured that the positive wire group 21 and the negative wire group 22 are not wrapped in the same composite material layer.

[0036] Comparing Example 1, Example 2, Example 3, the number of composite material layers 4 required in Example 4 is the least, and the required cost is lower than that of other examples. Therefore, Example 4 is the best example.

[0037] Furthermore, the outer walls of each signal wire 31, positive wire 211, negative wire 221 and ground wire 231 are coated with an insulating layer 7 to ensure the safety of construction workers. Among them, the insulating layer 7 is preferably polyvinyl chloride, which is a plastic with good insulation performance. Other materials with good performance can also be selected as the insulating layer 7, but this is not a limitation.

[0038] In addition, a filling material 8 is filled between the inner side of the fiber material layer 5 and the outer side of the composite material layer 4. The filling material 8 can fill the gaps between the composite material layer 4, the power cord group 2 and the fiber material layer 5. In the case of dense installation of cables, the filling material 8 can enhance the overall compressive capacity of the cables, keep the cables stable during transportation and installation, and avoid deformation and damage due to vibration or extrusion; among them, the filling material 8 is preferably a foam material, which can slow down the impact force exerted on the wire core by external forces and protect the wire core. Other materials can also be selected as the filling material 8, but this is not a limitation.

[0039] As Figure 5 and Figure 6 shown, the cable joint 9 includes a terminal 10, a terminal fixing seat 11 and a terminal gland 12. The terminal fixing seat 11 and the terminal gland 12 are assembled with each other to form a fixing structure with an internal cavity 13. One end of the terminal 10 is embedded in the internal cavity 13 and connected to the cable body 1, and the other end extends out of the terminal fixing seat 11. Among them, the terminal fixing seat 11 and the terminal gland 12 are provided inside the cable joint 9 in an integral structure, so that the cable joint 9 has a simple structure and strong stability. Because the terminal 10 is fixedly embedded in the internal cavity 13, it will not become loose when it is inserted into the LED lamp board.

[0040] Furthermore, the integrated cable with a waterproof connector further includes a protective layer 14 for wrapping the terminal fixing base 11 and the terminal gland 12. The protective layer 14 is provided outside the cable connector 9 and semi-wraps the cable connector 9, which can prevent it from being damaged due to external factors during use and prevent water ingress caused by gaps.

[0041] More preferably, the integrated cable with a waterproof connector further includes a waterproof rubber ring 15. The waterproof rubber ring 15 is provided at the connection between the protective layer 14 and the terminal fixing base 11 to prevent moisture and humidity from invading the inside of the cable connector 9, extend the service life of the LED lamp board module and the cable connector 9, and prevent it from being damaged due to a humid environment.

[0042] Preferably, a plug handle 16 is provided on the outer side of the protective layer 14 and a docking groove 17 is provided on the terminal fixing base 11 to enable users to better grip the cable connector 9. The docking groove 17 is rectangular and matches the docking structure of the LED lamp board module to tightly connect the cable connector 9 with the LED lamp board.

[0043] As can be seen from the above, the present utility model realizes the simultaneous transmission of power and signals by introducing the cable body 1 and the cable connector 9, solves the interference problem between the power cord 2 and the signal line 3. At the same time, since the cable connector 9 is of an integral design, the cable body 1 can be free from external forces, avoiding the fracture of the wire core inside the cable connector 9 or water ingress, and has the characteristics of strong stability and convenient use.

[0044] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, several improvements and refinements can be made without departing from the principle of the present invention, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. An integrated cable with a waterproof connector, comprising a cable body and cable connectors provided at both ends of the cable body, characterized in that, The cable body includes a power line group, a signal line group, a composite material layer, a fiber material layer, and an outer sheath; The power line group, the signal line group, and the composite material layer are all disposed inside the fiber material layer, and the outer sheath is wrapped outside the fiber material layer; The power line group includes a positive line group, a negative line group, and a ground line group, and the composite material layer covers the positive line group or the negative line group; The composite material layer also covers the signal line group.

2. The integrated cable with a waterproof connector according to claim 1, characterized in that, The composite material layer includes a first composite material layer and a second composite material layer, the signal line group includes four signal lines, the positive line group includes two positive lines, and the negative line group includes four negative lines; One of the positive lines in the positive line group and two of the signal lines in the signal line group are wrapped in the first composite material layer, and the other positive line in the positive line group and the other two signal lines in the signal line group are wrapped in the second composite material layer; or Two of the negative lines in the negative line group and two of the signal lines in the signal line group are wrapped in the first composite material layer, and the other two negative lines in the negative line group and the other two signal lines in the signal line group are wrapped in the second composite material layer.

3. The integrated cable with a waterproof connector according to claim 2, wherein, The outer walls of each signal line, positive line, negative line, and ground line are all coated with an insulating layer.

4. The integrated cable with a waterproof connector according to claim 1, characterized in that, A filling material is filled between the inside of the fiber material layer and the outside of the composite material layer.

5. The integrated cable with a waterproof connector according to claim 1, characterized in that, The cable joint includes a wiring terminal, a terminal fixing seat, and a terminal gland. The terminal fixing seat and the terminal gland are assembled with each other to form a fixing structure with an internal cavity. One end of the wiring terminal is embedded in the internal cavity and connected to the cable body, and the other end extends out of the terminal fixing seat.

6. The integrated cable with a waterproof connector according to claim 5, characterized in that, It also includes a protective layer for wrapping the terminal fixing seat and the terminal gland.

7. The integrated cable with a waterproof connector according to claim 6, characterized in that, It also includes a waterproof rubber ring, and the waterproof rubber ring is disposed at the connection between the protective layer and the terminal fixing seat.

8. The integrated cable with a waterproof connector according to claim 6, characterized in that, A plug handle is provided on the outside of the protective layer.

9. The integrated cable with a waterproof connector according to claim 5, characterized in that, A docking groove is provided on the terminal fixing seat.

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