Halogen-free low-smoke flame-retardant computer cable with end monitoring module

Abstract

The invention relates to the technical field of computer cables, in particular to a halogen-free low-smoke flame-retardant computer cable with an end monitoring module, which comprises a cable body, and the cable body comprises a conductor formed by a plurality of strands of thin and soft copper wires, a polyethylene insulating layer, an aluminum-plastic composite belt, a shielding layer, an armor and a polyolefin outer sheath. A plurality of internal monitoring pipes are inserted in the armor, and end monitoring rings matched with the internal monitoring pipes are pasted and fixed to the end of the polyolefin external sheath. According to the halogen-free low-smoke flame-retardant computer cable with the end monitoring module, the plurality of internal monitoring pipes are inserted into the armor, the end monitoring rings matched with the internal monitoring pipes are pasted and fixed to the end of the polyolefin external sheath, and the interior of the internal monitoring pipes can be inflated through the end monitoring rings; the internal anti-bending performance of the computer cable is guaranteed through inflation, damage to conductors, insulation and shielding in the cable due to excessive bending is avoided, and the safety and durability of the cable are improved.

Description

Technical Field

[0001] This invention relates to the field of computer cable technology, and in particular to halogen-free, low-smoke, flame-retardant computer cables with end monitoring modules. Background Technology

[0002] Halogen-free, low-smoke, flame-retardant computer cables can minimize their flammability in a fire while ensuring stable data transmission, thus avoiding damage to personnel and equipment safety and reducing secondary injuries caused by harmful gases produced during combustion.

[0003] However, current halogen-free, low-smoke, flame-retardant computer cables only achieve passive flame retardancy through material changes. But existing computer cables are frequently bent during use, easily leading to localized mechanical damage and affecting the stability of the internal conductor, surface insulation, and shielding. Furthermore, because they operate in high-temperature environments for extended periods, they directly conduct external heat to the cable's interior, and this localized high temperature directly impacts the cable's operational stability and lifespan, resulting in a very limited functionality. Summary of the Invention

[0004] The technical problem this invention aims to solve is that current halogen-free, low-smoke, flame-retardant computer cables cannot monitor their bending state, cannot improve their protective properties under bending conditions, and cannot avoid damage to their internal structure caused by excessive bending. At the same time, they cannot quickly dissipate internal high temperatures, affecting their service life and stability, and their functionality is very limited.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a halogen-free, low-smoke, flame-retardant computer cable with an end monitoring module, comprising a cable body, wherein the cable body is composed of a conductor made of multiple strands of fine and soft copper wire, a polyethylene insulation layer, an aluminum-plastic composite tape, a shielding layer, armor, and a polyolefin outer sheath, wherein a plurality of internal monitoring tubes are inserted inside the armor, and an end monitoring ring that cooperates with the internal monitoring tubes is glued and fixed to the end of the polyolefin outer sheath.

[0006] The aluminum-plastic composite strip is composed of aluminum foil and plastic film bonded together, and the shielding layer and armor are both made of fine steel wire woven into a mesh structure.

[0007] The end monitoring ring is assembled and fixed by a first closed frame and a second closed frame of a semi-circular structure.

[0008] The first and second closed frames are provided with circular telescopic blind holes on the end faces of the internal monitoring tubes, and an internal telescopic limiting guide nozzle is elastically fitted inside the circular telescopic blind hole.

[0009] The second closing frame is internally provided with an arc-shaped flow guide chamber communicated with the circular telescopic blind hole, and the arc-shaped outer surface of the first closing frame and the second closing frame is provided with an outer flow guide hole.

[0010] The internal telescopic limiting flow guide nozzle comprises a lateral insertion nozzle inserted into the circular telescopic blind hole, a middle telescopic tube fixed axially at the end of the lateral insertion nozzle, an end limiting ring fixed axially at the end of the middle telescopic tube, and an internal extrusion spring fixed on the end limiting ring.

[0011] The arc-shaped flow guide chamber is internally provided with a main pressure monitoring unit.

[0012] One end of the first closing frame and the second closing frame is provided with an end assembly clamping groove, and the other end of the first closing frame and the second closing frame is provided with an end assembly clamping buckle.

[0013] The end of the lateral insertion nozzle is provided with an end temperature sensing unit.

[0014] The end of the end monitoring ring is provided with an externally-hung expansion shell, and the externally-hung expansion shell is internally provided with an electrically-controlled heat dissipation fan.

[0015] The present application has the following advantages: (1) The halogen-free low-smoke flame-retardant computer cable with an end monitoring module comprises a plurality of internal monitoring tubes inserted into the inside of the armor, and an end monitoring ring matched with the internal monitoring tubes is fixed on the end of the polyolefin outer sheath, so that the inside of the internal monitoring tube can be inflated, the internal bending resistance of the computer cable is ensured by inflation, the internal conductor, insulation and shielding of the cable are prevented from being damaged due to excessive bending, and the safety and durability of the cable are improved. (2) The end monitoring ring is fixed by assembling the first closing frame and the second closing frame in a semi-ring structure, which facilitates processing and production, and the internal monitoring tube is inserted into the inside of the cable through the elastic assembly of the internal telescopic limiting flow guide nozzle in the circular telescopic blind hole, so that the end stability of the cable after installation is ensured, and the overall stability of the computer cable is adjusted by external air. (3) The end temperature sensing unit is installed at the end of the lateral insertion nozzle, and the externally-hung expansion shell is installed at the end of the end monitoring ring, and the air in the internal monitoring tube can be circulated by the electrically-controlled heat dissipation fan installed in the externally-hung expansion shell, which greatly improves the internal heat dissipation effect, the operation stability and the service life, and greatly enhances the functionality. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in combination with the drawings and examples.

[0017] Figure 1is a structural schematic diagram of the present application.

[0018] Figure 2 is a cross-sectional view of the cable inside the present application.

[0019] Figure 3 is a structural schematic diagram of the end monitoring ring and the externally mounted expansion shell in the present application.

[0020] Figure 4 is an internal structural schematic diagram of the end monitoring ring and the externally mounted expansion shell in the present application.

[0021] Figure 5 is an internal structural schematic diagram of the internal telescopic limiting flow guide nozzle in the present application.

[0022] Figure 1. Conductor; 2. Polyethylene material insulation layer; 3. Aluminum plastic composite tape; 4. Shielding layer; 5. Armor; 6. Polyolefin outer sheath; 7. Internal monitoring tube; 8. End monitoring ring; 9. Internal telescopic limiting flow guide nozzle; 10. Main pressure monitoring unit; 11. End temperature sensing unit; 12. Externally mounted expansion shell; 13. Electrically controlled heat dissipation fan; 81. First closed frame; 82. Second closed frame; 83. Arc-shaped flow guide chamber; 84. External sealing cover; 85. End assembly buckle; 91. Lateral insertion nozzle; 92. Middle telescopic tube; 93. End limiting ring; 94. Internal extrusion spring. DETAILED DESCRIPTION

[0023] The present application will now be further described in detail with reference to the drawings. These drawings are simplified schematic diagrams and only show the basic structure of the present application in a schematic manner, and thus only show the components related to the present application.

[0024] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5The halogen-free, low-smoke, flame-retardant computer cable with an end monitoring module shown includes a cable body, which consists of a conductor 1 made of multiple strands of fine, soft copper wire, a polyethylene insulation layer 2, an aluminum-plastic composite tape 3, a shielding layer 4, an armor 5, and a polyolefin outer sheath 6. Three internal monitoring tubes 7 are inserted inside the armor 5, and an end monitoring ring 8 that cooperates with the internal monitoring tubes 7 is glued and fixed to the end of the polyolefin outer sheath 6.

[0026] The aluminum-plastic composite strip 3 is made of aluminum foil and plastic film bonded together, and the shielding layer 4 and armor 5 are both made of fine steel wire woven into a mesh structure.

[0027] To facilitate assembly and fixation, the end monitoring ring 8 is assembled and fixed by a first closed frame 81 and a second closed frame 82 of a semi-circular structure.

[0028] To facilitate lateral telescopic assembly, the first closed frame 81 and the second closed frame 82 are provided with circular telescopic blind holes on the end faces of the internal monitoring tube 7, and an internal telescopic limiting guide nozzle 9 is elastically assembled inside the circular telescopic blind hole.

[0029] In order to facilitate internal flow guidance and external sealing, the second closed frame 82 has an arc-shaped flow guidance chamber 83 that communicates with the circular telescopic blind hole. Both the first closed frame 81 and the second closed frame 82 have external flow guidance holes on their outer arc-shaped surfaces, and an external sealing cap 84 is inserted into the external flow guidance hole.

[0030] To accommodate elastic compression and expansion, the internal telescopic limiting guide nozzle 9 includes a lateral insertion nozzle 91 inserted into the circular telescopic blind hole, a central telescopic tube 92 axially fixed to the end of the lateral insertion nozzle 91, an end limiting ring 93 axially fixed to the end of the central telescopic tube 92, and an internal compression spring 94 fixed to the end limiting ring 93.

[0031] The internal compression spring 94 compresses the end limiting ring 93 outward, thereby controlling the insertion of the lateral connector 91 and the central telescopic tube 92 into the internal monitoring tube 7.

[0032] In order to monitor the internal pressure and determine the bending degree of the computer cable based on the pressure change, the main pressure monitoring unit 10 is installed inside the arc-shaped flow guide chamber 83.

[0033] When bending occurs, it will squeeze the internal monitoring tube 7, forcing the air inside the internal monitoring tube 7 into the arc-shaped flow guide chamber 83, increasing the internal air pressure, and then the main pressure monitoring unit 10 is used to determine the pressure change.

[0034] To facilitate assembly and connection, one end of the first closed frame 81 and the second closed frame 82 is provided with an end assembly slot, and the other end of the first closed frame 81 and the second closed frame 82 is provided with an end assembly buckle 85.

[0035] The end assembly slots and end assembly buckles 85 at both ends of the first closed frame 81 and the second closed frame 82 are staggered. The first closed frame 81 and the second closed frame 82 are assembled and fixed by inserting the staggered end assembly buckles 85 into the end assembly slots.

[0036] To facilitate the monitoring of the internal temperature of different internal monitoring tubes 7, an end temperature sensing unit 11 is installed at the end of the side connector 91.

[0037] By monitoring the temperature at the connection point, the operating temperature of the calculator cable can be calculated based on temperature changes. Then, based on the temperature level, warnings can be issued and the power of the active cooling equipment can be controlled.

[0038] To facilitate functional expansion and provide active heat dissipation, an external expansion cover 12 is installed at the end of the end monitoring ring 8, and an electrically controlled cooling fan 13 is installed inside the external expansion cover 12.

[0039] The external extension cover 12 is mounted on the outside of the end detection ring 8. The air inside the internal monitoring tube 7 is driven to circulate by the rotation of the electrically controlled cooling fan 13, so as to quickly and evenly dissipate the temperature inside the cable.

[0040] The outer guide holes on the first closed frame 81 and the outer guide holes on the second closed frame 82 are not connected. The outer guide holes on the first closed frame 81 and the outer guide holes on the second closed frame 82 are respectively connected to the internal monitoring pipes 7 at different positions, which are used to connect to the air inlet pipe and the exhaust pipe of the external expansion cover 12 respectively, so that the airflow inside the outer guide hole on the second closed frame 82 can be transported to the outer guide hole on the first closed frame 81 and then circulate inside the different internal monitoring pipes 7.

[0041] Work process During cable production and assembly, the internal monitoring tubes 7 are first evenly inserted into the armor 5, and then the polyolefin outer sheath 6 is wrapped in sequence. Next, the end monitoring rings 8 are installed. The first closed frame 81 and the second closed frame 82 are attached to the ends of the polyolefin outer sheath 6, and the two are fixed together by inserting the end assembly buckle 85 into the end assembly slot. Simultaneously, the internal telescopic limiting guide nozzle 9, under the action of the internal compression spring 94, automatically inserts into the corresponding internal monitoring tube 7, completing the gas channel connection. The external sealing cover 84 is opened, and air is injected into the arc-shaped guide chamber 83 and the internal monitoring tube 7 through the outer guide hole until the main pressure monitoring unit 10 detects that the air pressure has reached the preset safety value. The electrically controlled inflation device is then turned off, and the external sealing cover 84 is reinserted to complete the inflation pretreatment, giving the cable bending resistance.

[0042] After the cable is put into use, the main pressure monitoring unit 10 and the end temperature sensing unit 11 are continuously in working condition: when the cable is running normally without bending, the air pressure in the internal monitoring tube 7 is stable, the main pressure monitoring unit 10 maintains stable data, and the end temperature sensing unit 11 monitors the internal temperature in real time and transmits it to the external control terminal; when the cable bends due to laying adjustment or external force, the internal monitoring tube 7 at the bend is squeezed, and the internal gas is pushed into the arc-shaped guide chamber 83, causing the air pressure in the chamber to rise instantaneously; after the main pressure monitoring unit 10 detects the change in air pressure, it immediately sends a bending signal to the control terminal. If the air pressure exceeds the preset threshold, the terminal issues a warning prompt, reminding the staff to adjust the cable posture to avoid damage to the internal conductor 1 and the polyethylene insulation layer 2.

[0043] The end temperature sensing unit 11 continuously monitors the gas temperature inside the internal monitoring tube 7. When the cable runs for a long time, causing the temperature to rise, or when the high temperature of the external environment is conducted into the interior, causing the monitored temperature to exceed the preset heat dissipation threshold, the control terminal sends a start command to the electrically controlled cooling fan 13. The electrically controlled cooling fan 13 inside the external expansion cover 12 starts, forming an internal airflow circulation channel: the electrically controlled cooling fan 13 drives the internal air to be sent through the outer guide hole on one side to the outer guide hole on the other side, and circulates the air inside each internal monitoring tube 7 through the internal telescopic limit guide nozzle 9, so as to evenly dissipate the internal temperature of the cable.

[0044] During routine maintenance, staff remove the outer sealing cap 84 and check the internal air pressure through the outer air guide hole. If the main pressure monitoring unit 10 displays that the air pressure is lower than the preset value, it will replenish the internal gas through the electronically controlled inflation device until the air pressure reaches the standard, thus ensuring the bending resistance of the internal monitoring tube 7.

[0045] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A halogen-free, low-smoke, flame-retardant computer cable with an end monitoring module, comprising a cable body, characterized in that: The cable body consists of a conductor (1) made of multiple strands of fine and soft copper wire, a polyethylene insulation layer (2), an aluminum-plastic composite tape (3), a shielding layer (4), an armor (5), and a polyolefin outer sheath (6). At least three internal monitoring tubes (7) are evenly inserted into the armor (5) along the circumferential direction. An end monitoring ring (8) that cooperates with the internal monitoring tubes (7) is glued and fixed to the end of the polyolefin outer sheath (6). The end monitoring ring (8) is provided with an arc-shaped flow guiding chamber (83) and a main pressure monitoring unit (10) inside, which is used to adjust the air pressure of the internal monitoring tubes (7) by inflation to improve the cable's bending resistance.

2. The halogen-free, low-smoke, flame-retardant computer cable with an end monitoring module according to claim 1, characterized in that: The end monitoring ring (8) is assembled and fixed by a first closed frame (81) and a second closed frame (82) of a semi-circular structure. A circular telescopic blind hole is opened on the end face of both near the internal monitoring tube (7). An internal telescopic limiting guide nozzle (9) is elastically fitted in the blind hole. The internal telescopic limiting guide nozzle (9) includes a lateral insertion nozzle (91), a central telescopic tube (92), an end limiting ring (93), and an internal compression spring (94), which is used to automatically insert into the internal monitoring tube (7) and form a sealed air passage.

3. The halogen-free, low-smoke, flame-retardant computer cable with an end monitoring module according to claim 2, characterized in that: The end of the side connector (91) is equipped with an end temperature sensing unit (11), and the end monitoring ring (8) is detachably equipped with an external expansion cover (12). The cover is equipped with an electrically controlled cooling fan (13) to drive airflow to circulate and dissipate heat between the internal monitoring tubes (7) according to the temperature signal.

4. The halogen-free, low-smoke, flame-retardant computer cable with an end monitoring module according to claim 1, characterized in that: An outer flow guide hole is provided on the outer arc surface of the first closed frame (81) and the second closed frame (82), and an outer sealing cap (84) is inserted into the hole.

5. The halogen-free, low-smoke, flame-retardant computer cable with an end monitoring module according to claim 2, characterized in that: The first closed frame (81) and the second closed frame (82) are provided with an end assembly slot at one end and an end assembly buckle (85) at the other end.

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