Aircraft cable clamp with monitoring function
By integrating resistors and radio frequency transmission modules into aircraft cable clamps, and using circuit loops to detect clamp breakage, the problem of the inability to monitor clamp status in existing technologies has been solved. This enables real-time monitoring and remote identification of clamp status, improving the safety and maintenance efficiency of aircraft cables.
Patent Information
- Application Number
- CN202423099604.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing aircraft cable clamps lack performance monitoring capabilities, making it impossible to determine their working status. This can lead to cables becoming loose or falling off, affecting flight safety.
Design an aircraft cable clamp with monitoring function, integrating clamp tape, resistor, detection module and radio frequency transmission module. It detects clamp tape breakage through metal traces and circuit loops, and remotely identifies the breakage location using radio frequency signals.
It enables real-time monitoring of clamp status, improves aircraft wiring maintenance capabilities, ensures reliable cable fixation, and enhances flight safety.
Smart Images
Figure CN223567209U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of aircraft cable clamp devices with monitoring function, belong to aircraft cable protection technical field. BACKGROUND
[0002] On the aircraft, cable acts as the bridge connecting various electrical equipment, is the medium of circuit signal transmission. Once cable loosens or falls off, it will cause electrical equipment failure or cannot work normally, even cause significant threat to flight safety, therefore, reliable fixation of cable is an important measure to guarantee flight safety. In addition, in the process of aircraft cable laying, in order to meet the environmental requirements around cable laying path, realize the distance between aircraft structure, structural support, system equipment, pipeline and wiring harness, appropriate wiring harness fixation method needs to be used, i.e. supporting cable or wiring harness by clamp and other elements, providing stress release, absorbing vibration and impact, changing laying path, etc.
[0003] The service life of aircraft cable clamp is affected by a wide range of physical and chemical stresses. Vibration, wear, hydrolysis, fatigue, thermal decomposition and chemical reaction coupling together can reduce the performance of clamp. Degradation and fracture of clamp can cause excessive vibration and friction of cable, affecting the safety of aircraft and the assemblability of aircraft.
[0004] At present, domestic and foreign aircraft cable clamps generally lack performance monitoring function, and it is impossible to determine whether the clamp is in normal working state. The performance prediction and diagnosis of aircraft cable clamp are basically blank.
[0005] Therefore, in order to monitor the working state of clamp and ensure normal operation of cable, it is urgent to design an intelligent clamp with self-monitoring function to realize detection of aircraft cable clamp, which plays an important role in improving the maintenance support capability of aircraft line and flight safety. INVENTION CONTENTS
[0006] The utility model designs a kind of aircraft cable clamp with monitoring function for the deficiency of existing aircraft cable clamp, can remind aircraft maintenance personnel to pay attention to the clamp support failure that has occurred, avoid the insulation damage caused by free movement of wiring harness not supported by clamp.
[0007] The utility model relates to a kind of aircraft cable clamp with monitoring function, its speciality is including band 1, resistor 2, detection module 3, radio frequency transmitting module 4, power 5, band 1 is connected to resistor 2 by metal trace 7, then is connected to detection module 3, detection module 3 is connected to radio frequency transmitting module 4, power 5 provides electric energy for entire circuit, wherein, resistor 2, detection module 3, radio frequency transmitting module 4, power 5 are integrated on a piece of PCB board 6.
[0008] Further, the hoop 1 is a ring-shaped plastic hoop of flame-retardant nylon material.
[0009] Further, butyl rubber pads are embedded on both sides of the surface of the hoop 1 to serve as fixing and damping.
[0010] Further, the metal trace 7 is printed on the upper surface of the hoop 1, and the two ends of the metal trace 7 extend to the outside of the hoop 1; the metal trace 7 has conductivity and thus forms a circuit loop with the resistor 2 as part of the circuit.
[0011] Further, the resistor 2 has a resistance of KΩ level.
[0012] Further, the resistor 2 is a 1KΩ to 2KΩ chip resistor.
[0013] Further, the detection module 3 comprises a microprocessor; when the hoop 1 is broken, the metal trace 7 is disconnected, the circuit loop is simultaneously disconnected, the microprocessor detection pin changes from high level to low level, and a digital signal is output to the next-stage radio frequency transmitting module 4.
[0014] Further, the radio frequency transmitting module 4 adopts a carrier signal with a frequency of 100MHz, and comprises a microprocessor, a wireless signal transmitting unit and a power module; the radio frequency transmitting module 4 receives the digital signal output by the microprocessor of the detection module 3 through the microprocessor and then controls the wireless signal transmitting unit to transmit a radio signal.
[0015] The working principle of the whole system is that the metal trace 7 is printed on the surface of the hoop 1 to make the plastic nylon hoop 1 conductive, the conductive hoop 1 is connected to one end of the resistor 2 through the metal trace 7 and then connected to the detection module 3, the detection module 3 is used for outputting a detection condition to the radio frequency transmitting module 4, the detection output directly depends on the health condition of the hoop 1, the transmitting module electronic device is suitable for miniaturization and meets the requirements of the smart card hoop design; when the hoop of the card is disconnected or broken, the circuit connected between the metal trace 7 and the resistor 2 becomes an open circuit, the detection level of the port of the detection module 3 changes from high level to low level, at this time, the detection module 3 sends a control signal to the radio frequency transmitting module 4, and the radio frequency transmitting module 4 sends a radio frequency signal with a changed frequency. In the designed smart card hoop, the radio frequency signal contained can transmit the position of the installed smart card hoop on the airplane, and this information can identify the position of the broken long-distance card hoop.
[0016] The smart card hoop has the advantages that:
[0017] 1. The smart card hoop integrates electrical and electronic elements on a PCB board, has compact and simple structure, stable performance, reliable work and high detection precision.
[0018] 2. The radio frequency transmitting module electronic device is cheap and suitable for miniaturization, and the transmitted radio frequency signal can identify the position of the broken long-distance clamp on the airplane, facilitating the maintenance or replacement of the airplane maintenance personnel.
[0019] 3. The plastic clamp with butyl rubber pad can reduce the vibration and friction of the cable in flight. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 The circuit connection diagram of the airplane cable clamp device with monitoring function of the utility model;
[0021] Figure 2 The structural diagram of the airplane cable clamp device with monitoring function of the utility model. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.
[0023] As shown in Figure 1 A kind of airplane cable clamp with detection function, including band 1, resistor 2, detection module 3, radio frequency transmitting module 4, power 5, wherein band 1 is connected to resistor 2 by metal trace 7, then is connected to detection module 3, detection module 3 is connected to radio frequency transmitting module 4, power 5 provides electric energy for entire circuit, resistor 2, detection module 3, radio frequency transmitting module 4, power 5 are integrated on a PCB board 6. The power supply of smart clamp circuit can be obtained from airborne power supply, such as battery, mechanical or electric transducer system etc., or from inductive coupling power supply.
[0024] As shown in Figure 2As shown, in order to bundle, fix and install the aircraft cable, the hoop band 1 of the clamp adopts annular plastic of flame-retardant nylon material. Butyl rubber pads are embedded on both sides of the surface of the hoop band 1, which plays a role of reducing vibration and friction of the cable. By printing metal traces 7 on the surface of the hoop band 1, the plastic nylon clamp produces conductivity, the conductive clamp is connected to one end of the resistor 2, and then connected to the detection module 3, which is used to output the detection condition to the radio frequency transmitting module 4, and the detection output directly depends on the health condition of the clamp. The transmitting module electronic device is cheap and suitable for miniaturization, which meets the two requirements of the design of the intelligent clamp. When the hoop band 1 of the clamp is disconnected or broken, the circuit connected by the metal traces 7 and the resistor 2 becomes open circuit, which causes the port detection level of the detection module 3 to change from high level to low level. At this time, the detection module 3 will send a control signal to the radio frequency transmitting module 4, so that the radio frequency transmitting module 4 sends a radio frequency signal with changed frequency. In the designed intelligent clamp, the radio frequency signal contained can transmit the position of the installed intelligent clamp on the aircraft, and this information can identify the position of the long-distance clamp which is broken.
[0025] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An aircraft cable clamp with monitoring function, characterized in that The cuff, the resistor, the detection module, the radio frequency transmitting module and the power supply are integrated on a PCB board.
2. An aircraft cable clamp with monitoring function according to claim 1, characterized in that The cuff is a ring-shaped plastic cuff made of flame-retardant nylon material.
3. The aircraft cable clamp with monitoring function according to claim 1, characterized in that Butyl rubber pads are embedded on both sides of the surface of the cuff.
4. The aircraft cable clamp with monitoring function according to claim 1, characterized in that The metal trace is printed on the upper surface of the cuff, and the two ends of the metal trace extend to the outside of the cuff.
5. The aircraft cable cleat with monitoring capability of claim 1, wherein The resistor has a resistance of KΩ level.
6. An aircraft cable clamp with monitoring function according to claim 5, characterized in that The resistor is a 1KΩ-2KΩ chip resistor.
7. The aircraft cable clamp with monitoring function according to claim 1, characterized in that The detection module contains a microprocessor.
8. The aircraft cable cleat with monitoring capability of claim 1, wherein When the cuff is broken, the metal trace is disconnected, causing the circuit loop to be disconnected simultaneously. The microprocessor detects the change of the pin from high level to low level, and outputs a digital signal to the next radio frequency transmitting module. The radio frequency transmitting module uses a carrier signal with a frequency of 100MHz. The radio frequency transmitting module contains a microprocessor, a wireless signal transmitting unit and a power supply module. The microprocessor receives the digital signal output by the detection module microprocessor, and controls the wireless transmitting unit to transmit a radio signal.