CN210142380U - Outer broken warning device is prevented to scintillation formula transmission line - Google Patents

Abstract

The utility model discloses a scintillation formula transmission line prevents outer broken warning device, a serial communication port, including energy acquisition module, LED light emitting module and control circuit, control circuit includes power amplification module, energy storage module and frequency control module, wherein: the energy acquisition module is used for collecting electric energy and transmitting the electric energy to the power amplification module; the power amplification module is used for amplifying the power of the electric energy collected by the energy collection module and then transmitting the power to the energy storage module; the energy storage module is used for storing the electric energy which is subjected to power amplification by the power amplification module, and the stored electric energy is used for supplying power to the LED light-emitting module and the frequency control module; the frequency control module is used for controlling the light emitting frequency of the LED light emitting module.

Description

Outer broken warning device is prevented to scintillation formula transmission line

Technical Field

The utility model relates to an equipotential is got can, scintillation formula, transmission line, warning ball, concretely relates to scintillation formula transmission line prevents outer broken warning device.

Background

In recent years, with the increasing of electricity demand in various places, the construction of high-voltage transmission lines is accelerated, but construction units often prohibit the accidents of line tripping, line breaking and even personal injury due to rough operation and illegal operation in a power facility protection area and the fact that construction machines and tools mistakenly touch the electrified transmission lines, equipment damage and power failure loss are caused, and normal power supply and high-quality power service in production and life are influenced. In 2018, the accidents of external damage of the transmission line caused by construction of a piling car, operation of a nursery crane and the like occur in the Sichuan power grid.

Meanwhile, civil navigation and unmanned aerial vehicles are more and more wide in application range, low-altitude flight and unmanned aerial vehicle flight activities are more and more active in various aspects such as agriculture, sightseeing, photography and the like, and due to the fact that high-voltage lines are thin and visibility is low under the condition of backlight, the low-altitude aircraft is prone to colliding with the high-voltage lines, the aircraft can cause damage to the aircraft and death of people when colliding with the high-voltage transmission lines, and the safety of a power grid is seriously threatened. At present, the common solution at home and abroad is to install aviation warning balls on a lightning protection cable of a high-voltage power transmission line at equal intervals. According to the international standard and construction measure-airport attachment fourteen and the related national regulations of the international civil aviation organization, for overhead power transmission lines, especially for ultrahigh voltage power transmission lines and cross-river power transmission lines, an aviation marker ball (aviation warning ball) with a striking shape is arranged on the lines to provide warning marks. However, such warning balls only have a reflective strip and do not emit light, so that the warning effect at night is very limited, and the working danger brought to the aircraft by the high-voltage transmission line cannot be avoided.

The invention patent CN105047075A fixes the warning ball on the cable through the pre-twisted wire protecting line, and can fix the ball body well. Utility model patent CN203444708U discloses a warning ball, has also only improved from reducing warning ball weight, making its angle of fixing more firm. Utility model patent CN203520573U discloses a warning ball possesses lightning protection cable kayser mechanism and warning ball lifting mechanism, has made things convenient for the installation on the circuit. The above patents including the utility model patent CN204103407U mainly improve the mounting and fixing of the warning ball, but do not innovate the warning function.

Patent application No. 200910086996.1 discloses a transmission line warning ball. This warning ball is fixed on the power transmission line to obtain working power supply on the follow power transmission line, the required power supply unit of this kind of attention device is many, including exceeding 50 LED, ultrasonic ranging sensor and bee calling organ etc.. Utility model patent CN206773835U has designed a luminescent circuit and has promoted warning effect, nevertheless need get the electric transformer by the response in iron core base and the iron core upper cover and provide the power in the working process, and weight is heavier. Utility model patent CN205722289U adopts current transformer to get the ability equally, through infrared ray sensor, ultrasonic sensor or the multiple detection means of microwave sensor, can realize effectively detecting and reporting to the police to various objects of nearly transmission line. Patents including utility model patent 206773835, 20470611 have carried out further innovation to the function of warning ball, can provide extra warning function such as luminous, monitoring, but the function realization of above-mentioned patent all gets the ability based on the mutual-inductor, and not only weight is heavier, only can work when the circuit has the electric current to pass through moreover, and the circuit can't get the ability when empty, can't realize the warning effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve prior art and get the problem that can the mode laggard and the warning effect that leads to is poor, provide a scintillation formula transmission line and prevent outer broken warning device.

The utility model discloses a following technical scheme realizes:

the utility model provides a scintillation formula transmission line prevents outer broken warning device which characterized in that, includes energy acquisition module, LED light emitting module and control circuit, control circuit includes power amplification module, energy storage module and frequency control module, wherein:

the energy acquisition module is used for collecting electric energy and transmitting the electric energy to the power amplification module;

the power amplification module is used for amplifying the power of the electric energy collected by the energy collection module and then transmitting the power to the energy storage module;

the energy storage module is used for storing the electric energy which is subjected to power amplification by the power amplification module, and the stored electric energy is used for supplying power to the LED light-emitting module and the frequency control module;

the frequency control module is used for controlling the light emitting frequency of the LED light emitting module;

the energy collecting module and the control circuit are arranged in a cavity of the shell, and the outer surface of the shell is provided with a plurality of LED light-emitting modules;

the shell comprises an upper hemisphere and a lower hemisphere; the upper hemisphere and the lower hemisphere are buckled together;

the fixed clamp combines the upper hemisphere and the lower hemisphere into a sphere along the diameter direction of the shell and fastens the sphere;

the housing and the retaining clip act as an energy storage module to store electrical energy.

The working principle of the equipotential energy-taking flashing type warning ball is as follows: the energy acquisition module collects electric energy required by the work of the warning ball in an equipotential energy obtaining mode, and then the power amplification and energy storage and frequency control module controls the LED light-emitting module to emit light and display according to required fixed frequency. The energy obtaining mode is the energy obtaining based on the electrostatic induction principle and the coupling principle, namely the energy obtaining mode is composed of a spherical shell made of conductive materials such as aluminum and the like and a plastic fixed clamp, or composed of a plastic spherical shell internally coated with copper foil and a fixed metal clamp.

Besides the functional modules, the warning ball also comprises a protection circuit of the system and an anti-electromagnetic interference and three-prevention design which is suitable for outdoor long-term operation. The steady-state protection circuit adopts a solid-state relay and a pre-voltage stabilizing circuit; the transient protection circuit adopts a transient suppression diode (TVS); the voltage stabilizing circuit adopts wide voltage input; an anti-electromagnetic interference and three-proofing (moisture-proof, shockproof heat, ultraviolet-proof) system uses power electronic semiconductor chips stacked on a kappa matrix to shield electromagnetic interference through multi-chip assembly (MCM).

For various on-line monitoring devices in a power transmission system, the field power supply technology of the device is one of the key technologies for ensuring the normal and reliable operation of the device. Experts and scholars at home and abroad make a great deal of research in this respect, and the common power supply modes up to now mainly include: the power supply of the lithium battery, the power supply of the solar photovoltaic battery, the power supply of the laser, the power supply of the current transformer, the power supply of the induction energy and the like. The design of the energy acquisition module is one of the core technologies of the equipotential energy-taking flickering warning ball, and is the basis of energy source and operation of the warning ball.

The transmission line prevents outer broken energy acquisition module of warning ball based on equipotential is got includes: warning ball shell, folder, equipotential connecting wire, the copper foil of hemisphere about, characterized in that: the power transmission lead is one pole, the warning ball shell, the clamping piece and the upper and lower hemispheres are connected in an equipotential mode, and the copper foil is the other pole. And energy collection is carried out by utilizing the electrostatic induction principle and the coupling principle. The electrostatic induction principle utilizes the electrostatic induction phenomenon to collect energy. The coupling principle is that a capacitor is connected in an alternating current circuit, the potential of a circuit connected with one end of the capacitor is gradually increased, charges are gradually accumulated on a polar plate where the capacitor is located, when the potential of the circuit connected with the end is decreased, the charges accumulated when the potential is high are returned to the circuit, and the same is true for the other end. The capacitor has no current passing through, but accumulates and releases charges as the potential of the plate rises and falls, and plays a role in energy transfer.

A frequency control module: the warning ball has the problems of LED flicker disorder and unstable light emitting frequency in a strong electromagnetic field environment, the voltage of an LED node between two times of flicker is still kept about 0.7V, namely the diode is in a conducting state and contains a large number of interference signals, and the diode node is turned on in advance, but the LED cannot reach the 2-4V voltage for normal work due to insufficient energy storage and is turned on, so that the problem that a flicker gap of a light emitting element after a power supply is disconnected by a controller still emits light weakly and cannot be completely turned off is solved. Therefore, the electronic components and the packaging form of the controller are designed and optimized, the strong electric field resistance is improved, and the purpose of frequency control is achieved.

Further, the upper hemisphere and the lower hemisphere are both made of conductive materials, and are connected with each other in an equipotential manner through conducting wires; the fixing clamp is made of plastic materials.

Furthermore, the fixing clamp is provided with a wire clamping groove and a screw hole.

Furthermore, copper foil shielding layers are arranged on the inner walls of the upper hemisphere and the lower hemisphere, and the copper foil shielding layers of the upper hemisphere and the lower hemisphere are connected in an equipotential mode through conducting wires; the fixing clamp is made of conductive materials.

In the utility model, through the design of the sphere and the shielding layer, the whole sphere can realize the functions of energy collection and storage; the utility model comprises at least two realization modes, wherein the upper hemisphere and the lower hemisphere are made of conductive materials in one condition, such as any one of copper, aluminum and the like, which can realize the purpose of the utility model, and the fixed clamp is made of plastic materials, so that the fixed clamp and the fixed clamp can be matched to form electric energy storage; the episphere under another kind of circumstances, lower hemisphere are plastics, and its inner wall all is provided with the copper foil shielding layer, and fixed folder can realize for any one of conducting material such as metal copper, aluminium the utility model discloses the conducting material of purpose, both can carry out electric energy storage equally this moment. Furthermore, the control circuit is a multi-chip set, the surface of which is sprayed with single-component acrylic transparent protective paint and is packaged by a thick metal film. The single-component acrylic transparent protective paint has the advantages that the moisture-proof, shockproof, heat-proof, ultraviolet-proof and anti-electromagnetic interference capabilities are realized through the design, and the single-component acrylic transparent protective paint can prevent the corrosion of weak acid, alkali, alcohol, mould, salt spray, thermal stress, ultraviolet rays, moisture and insects; meanwhile, the protective paint is high temperature resistant, can not drip when heated, and can be directly soldered on the protective film.

Furthermore, transient voltage suppression diodes are arranged at two ends of the energy acquisition module, and a voltage stabilizing tube is arranged at the front end of the energy acquisition module; the steady-state protection and the transient protection are realized through the design.

Further, the power amplification module is an OTL power amplification circuit.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model belongs to the technical field of outer broken protection of power transmission line and warning equipment, fix on high tension transmission line wire through the device installation, pass through the voltage induction from power transmission line and acquire working power supply, the power supplies the LED lamp, makes warning ball scintillation luminous. Meanwhile, a principle of selecting the installation place of the warning ball is provided, and an installation method is definite. The utility model discloses not influenced by circuit overload, no-load, thunderbolt, all normal operating, and saved the iron core, it is effectual to have the early warning, advantages such as simple structure, light in weight, simple to operate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic diagram of the electrical principle of the present invention;

FIG. 4 is a schematic diagram of a power amplification circuit constructed according to the OTL circuit principle;

FIG. 5 is a graph of typical LED flicker time intervals;

FIG. 6 is a schematic diagram of a sampled voltage waveform across an LED;

FIG. 7 is a schematic diagram of a pulse waveform for an LED.

Reference numbers and corresponding part names in the drawings:

the LED light-emitting module comprises 1-an upper hemisphere, 2-a lower hemisphere, 3-a copper foil shielding layer, 4-an LED light-emitting module, 5-a fixing clamp, 6-a screw hole and 7-a wire clamping groove.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

As shown in fig. 3, a scintillation formula transmission line prevents outer broken warning device, its characterized in that includes energy acquisition module, LED light emitting module 4 and control circuit, control circuit includes power amplification module, energy storage module and frequency control module, wherein:

the energy acquisition module is used for collecting electric energy and transmitting the electric energy to the power amplification module;

the power amplification module is used for amplifying the power of the electric energy collected by the energy collection module and then transmitting the power to the energy storage module;

the energy storage module is used for storing the electric energy which is amplified by the power amplification module, and the stored electric energy is used for supplying power to the LED light-emitting module 4 and the frequency control module;

the frequency control module is used for controlling the light emitting frequency of the LED light emitting module 4; the energy acquisition module and the light-emitting component are combined, so that the anti-external-damage warning ball can emit light in a flashing light-emitting mode for warning. A frequency control circuit is added, switching frequency control is adopted, the high-brightness light-emitting element flickers, visual contrast of bright and dark is achieved through a flickering process, and the identification capability of naked eyes is enhanced.

The working principle of the equipotential energy-taking flashing type warning ball is as follows: the energy acquisition module collects electric energy required by the work of the warning ball in an equipotential energy obtaining mode, and then the power amplification and energy storage and frequency control module controls the LED light-emitting module to emit light and display according to required fixed frequency.

Besides the functional modules, the warning ball also comprises a protection circuit of the system and an anti-electromagnetic interference and three-prevention design which is suitable for outdoor long-term operation. The steady-state protection circuit adopts a solid-state relay and a pre-voltage stabilizing circuit; the transient protection circuit adopts a transient suppression diode (TVS); the voltage stabilizing circuit adopts wide voltage input; an anti-electromagnetic interference and three-proofing (moisture-proof, shockproof heat, ultraviolet-proof) system uses power electronic semiconductor chips stacked on a kappa matrix to shield electromagnetic interference through multi-chip assembly (MCM).

For various on-line monitoring devices in a power transmission system, the field power supply technology of the device is one of the key technologies for ensuring the normal and reliable operation of the device. Experts and scholars at home and abroad make a great deal of research in this respect, and the common power supply modes up to now mainly include: the power supply of the lithium battery, the power supply of the solar photovoltaic battery, the power supply of the laser, the power supply of the current transformer, the power supply of the induction energy and the like. The design of the energy acquisition module is one of the core technologies of the equipotential energy-taking flickering warning ball, and is the basis of energy source and operation of the warning ball.

The energy-collecting converter of the equipotential energy-taking flashing type warning ball utilizes the principle of electrostatic induction and the principle of coupling. The electrostatic induction principle utilizes the electrostatic induction phenomenon to collect energy. The coupling principle is that a capacitor is connected in an alternating current circuit, the potential of a circuit connected with one end of the capacitor is gradually increased, charges are gradually accumulated on a polar plate where the capacitor is located, when the potential of the circuit connected with the end is decreased, the charges accumulated when the potential is high are returned to the circuit, and the same is true for the other end. The capacitor has no current passing through, but accumulates and releases charges as the potential of the plate rises and falls, and plays a role in energy transfer.

As shown in fig. 1 and 2, the solar energy collecting device further comprises a housing, the energy collecting module and the control circuit are arranged in a cavity of the housing, and a plurality of LED light emitting modules 4 are arranged on the outer surface of the housing; two through holes are formed in the surface of the shell and are used for being sleeved on the power transmission line.

The shape of shell is spherical, including upper hemisphere 1, lower hemisphere 2, the inner wall of upper hemisphere 1, lower hemisphere 2 all is provided with copper foil shielding layer 3.

And a fixing clamp 5 is arranged outside the through hole of the shell, and the fixing clamp 5 is provided with a wire clamping groove 7 and a screw hole 6.

The power amplification module is an important link for realizing visualization of the warning ball. Because the coupling energy of the energy collector is small, the energy collector cannot directly supply energy to the light-emitting element to flicker and emit light. The small power signal is modulated and processed and then directly connected into the coupling circuit, and can be attenuated quickly due to impedance.

For this purpose, the small signal needs to be power-amplified by a power amplifier, which mainly implements the following functions: (1) the output power is large enough to ensure the normal transmission of signals in the coupling system and the circuit; (2) the rated load impedance of the power amplifier is matched with the impedance of the coupling circuit; (3) because the load change is large, the power amplifying circuit is required to have strong load carrying capacity; (4) stable operation and reliable performance. Therefore, the power amplification module adopts an OTL power amplification circuit.

As shown in fig. 4, the front end is an input signal and the back end is an output signal. T1 is a pre-amplifier stage, T2 and T3 are a pair of NPN and PNP type crystal triodes with symmetric parameters to form a complementary push-pull OTL power amplifier circuit. The branch circuits of R6, D1 and D2 provide static bias voltage for T2 and T3, so that the T2 and T3 tubes are in a conducting state, and cross distortion caused by triode dead zones when the amplitude of input voltage is small can be eliminated under the dynamic condition. When the OTL complementary symmetric output circuit is in a static state, the emitter voltage of the T2 transistor is 1/2VCC, so that when the input signal changes, a more symmetric output waveform can be obtained at the output terminal.

Example 2

Transient voltage suppression diodes are arranged at two ends of the energy acquisition module, and a voltage stabilizing tube is arranged at the front end of the energy acquisition module;

the steady-state protection and the transient protection are realized through the design;

due to the adoption of the mode of taking electricity from the transmission conductor in an equipotential manner, when fault heavy current flows through the transmission line, the output voltage of the warning ball energy acquisition module is possibly overvoltage, and protective measures need to be taken. The invention adopts the voltage latching relay for control, and when the power transmission line is in overcurrent, the voltage latching relay acts to limit the further rise of voltage and protect the energy acquisition system module. The voltage latching relay adopts a solid-state relay which is a non-contact switch element consisting of semiconductor elements, and compared with an electromagnetic relay, the voltage latching relay has a series of advantages of reliable work, long service life, small interference to the outside, strong anti-interference capability, high switching speed, convenient use and the like.

In order to enable the power supply to start normally under the lowest possible voltage, the circuit sensitivity is increased, but the circuit sensitivity can cause the voltage induced by the warning ball to exceed the maximum allowable input voltage of the energy acquisition system when the current of the power transmission line is large. In order to solve the contradiction, a voltage stabilizing tube is arranged at the front end of the energy acquisition system module to form a pre-voltage stabilizing circuit, so that the input voltage can not exceed the maximum input voltage of the energy acquisition system module. The working process of the pre-voltage stabilizing circuit is as follows: when the power transmission line is in a low-current working condition, the voltage drop of the pre-voltage stabilizing circuit is small, and the loss is also small; the pre-voltage stabilizing circuit adopts wide voltage input and double-path output, when the input voltage is between 6 and 40VDC, the voltage of +15V and-15V can be stably output, and the output ripple is less than 30 mV.

Because the long-term outdoor operation of equipotential scintillation formula warning ball, when taking place thunderbolt or circuit short circuit fault, the circuit current increases in the twinkling of an eye, and very high impulse voltage will be responded to warning ball energy acquisition system, and impulse voltage can influence the normal work of warning ball rear end circuit and even burn out the rear end circuit. In order to protect a rear-end line, transient voltage suppression diodes (TVS) are designed at two ends of the energy collection system to limit impulse voltage output by the energy collection system.

Transient voltage suppression diodes are high performance protective devices in the form of diodes. When two poles of the TVS tube are impacted by reverse transient high energy, the high impedance between the two poles of the TVS tube can be changed into low impedance at the speed of 10-12 seconds, the surge power of thousands of watts can be absorbed, the voltage between the two poles is clamped at a preset value, and precise components in an electronic circuit are effectively protected from being damaged by various surge pulses. The high-precision high-voltage switch has the characteristics of high response speed (nanosecond), large instantaneous absorption power (hundreds of kilowatts to several kilowatts), small leakage current (microampere), high conduction voltage precision, easy control of clamping voltage, small volume and the like. The protection device is effective for preventing various electromagnetic wave interferences such as static electricity, thunder and lightning, operation overvoltage, arc reignition of a breaker and the like, and can effectively inhibit common mode and differential mode interferences.

Example 3

And the copper foil shielding layers 3 of the upper hemisphere 1 and the lower hemisphere 2 are connected in an equipotential manner through conducting wires.

The warning ball works on the power transmission wire, and in order to prevent metal parts such as a circuit board and an electronic element of the warning ball from being broken down by high voltage in an electric field environment, the electronic element in the warning ball needs to be integrally shielded, and measures include enhancing electromagnetic shielding, weakening interference coupling, increasing the anti-interference capacity of the electronic element and the like. Placing the control assembly in a faraday cage as an electric field shield is a simple and effective way, but has its limitations. The power amplification, energy storage and frequency control part of the warning ball is wrapped by the metal copper foils, the metal copper foils are wrapped on the inner walls of two hemispheres of the warning ball, and the copper foils of the two hemispheres are connected in an equipotential mode through the lead wires in the installation process.

The time interval of the flashing of the warning ball is shown as figure 5 when the voltage to earth is 127 kV;

in the embodiment, a red LED is selected, the rated voltage is 3.4V, and the rated current is 250 mA;

a voltage measurement experiment is carried out in a high-voltage environment with voltage to earth being 127kV, the voltage waveform of sampling at two ends of the measured LED is shown in figure 6, and the pulse waveform of the LED is shown in figure 7.

Example 4

The control circuit is a multi-chip set, the surface of which is sprayed with single-component acrylic transparent protective paint and is packaged by a thick metal film. The single-component acrylic transparent protective paint has the advantages that the moisture-proof, shockproof, heat-proof, ultraviolet-proof and anti-electromagnetic interference capabilities are realized through the design, and the single-component acrylic transparent protective paint can prevent the corrosion of weak acid, alkali, alcohol, mould, salt spray, thermal stress, ultraviolet rays, moisture and insects; meanwhile, the protective paint is high temperature resistant, can not drip when heated, and can be directly soldered on the protective film.

The electronic element and the packaging form in the design are selected and considered to be anti-electromagnetic interference and three-prevention (moisture-proof, shockproof heat and ultraviolet-proof) design, and the design is an important guarantee for normal operation of the warning ball in a high-voltage environment. Another non-negligible influence factor in the ultra-high voltage environment is the influence of a strong electromagnetic field on the power electronic components of the internal structure of the warning ball. The anti-electromagnetic interference capability and the insulating capability of a circuit are reduced in a strong electromagnetic field environment, various semiconductor chips adopted by the system are easily interfered by strong electromagnetic waves around an ultrahigh voltage power transmission line to generate local discharge and induced current, the quality of an input signal of a signal processing chip is interfered, and the chip can be burnt in serious conditions. Therefore, in the selection of the electronic elements and the packaging form of the warning ball, the heat dissipation efficiency is improved, the volume is reduced, the response speed is increased, the accuracy is enhanced, and the moisture resistance, the heat resistance, the ultraviolet resistance and the electromagnetic interference resistance of the warning ball are also required to be greatly enhanced. These interference problems can be alleviated to a large extent by means of a metal foil shield around the electronic component. Meanwhile, the anti-electromagnetic interference effect is better by adopting a multiple combination mode of electromagnetic shielding, circuit design and chip design.

The invention uses a frequency control system which comprises an uncontrollable rectifying circuit, an output filter, a series resonance circuit and other circuits, wherein a microelectronic integrated circuit accounts for a larger proportion, and because the size of the microelectronic integrated circuit is very small (micron level), according to the definition formula of voltage:

in the formula, AB represents the device size, E represents the electric field strength, and VAB represents the induced voltage of the device in the electric field. And because the circuit is packaged in the thick metal film connected with the same potential, the interference to the circuit is much smaller than that of an independent electronic element, thereby reducing the potential difference. For electronic elements without integration, a multi-chip stacking (MCM) mode is adopted, chips of the electronic elements are directly integrated on the same semiconductor substrate, and uniform thick metal film packaging is carried out, so that the same effect can be achieved.

After comprehensive parameters and experimental comparison are carried out on a common electronic integration scheme, customized high-voltage low-leakage-rate semiconductor materials are adopted, a proper finished product packaging process is combined, bare cores of all elements are directly stacked on a semiconductor substrate with low leakage rate, all chips are connected through a multi-chip module (MCM), and then thick metal film packaging is carried out uniformly. A plurality of independent electronic elements are integrated into a smaller area and are packaged and molded, strong electric field interference can be better shielded, the probability of local discharge and induced current is reduced, the interference on the input signal quality of a signal processing chip is reduced, and finally the anti-interference capability of a control circuit main body is improved. In addition, the structure can also improve the heat dissipation efficiency of the chip, reduce the size and greatly enhance the characteristics of moisture resistance, shock resistance and the like of the system, so that the warning ball has the possibility of working in outdoor severe environment for a long time.

After the bare core is sliced and formed, a project group adopts a single-component acrylic acid transparent protective paint, and a layer of glossy and transparent protective film is formed on the circuit board by spraying, so that the corrosion of weak acid, alkali, alcohol, mould, salt fog, thermal stress, ultraviolet rays, moisture and insects can be prevented; meanwhile, the protective paint is high temperature resistant, can not drip when heated, and can be directly soldered on the protective film.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. The utility model provides a scintillation formula transmission line prevents outer broken warning device which characterized in that, includes energy acquisition module, LED light emitting module (4) and control circuit, control circuit includes power amplification module, energy storage module and frequency control module, wherein:

the energy acquisition module is used for collecting electric energy and transmitting the electric energy to the power amplification module;

the power amplification module is used for amplifying the power of the electric energy collected by the energy collection module and then transmitting the power to the energy storage module;

the energy storage module is used for storing electric energy which is subjected to power amplification by the power amplification module, and the stored electric energy is used for supplying power to the LED light-emitting module (4) and the frequency control module;

the frequency control module is used for controlling the light emitting frequency of the LED light emitting module (4);

the energy collecting module and the control circuit are arranged in a cavity of the shell, and a plurality of LED light-emitting modules (4) are arranged on the outer surface of the shell;

the shell comprises an upper hemisphere (1) and a lower hemisphere (2); the upper hemisphere (1) and the lower hemisphere (2) are buckled together;

the fixed clamp (5) combines the upper hemisphere (1) and the lower hemisphere (2) into a sphere along the diameter direction of the shell and fastens the sphere;

the housing and the fixing clip (5) serve as an energy storage module for storing electrical energy.

2. The flashy type power transmission line external damage prevention warning device of claim 1, wherein the inner walls of the upper hemisphere (1) and the lower hemisphere (2) are both provided with copper foil shielding layers (3), and the copper foil shielding layers (3) of the upper hemisphere (1) and the lower hemisphere (2) are connected with each other in an equipotential manner through conducting wires; the fixing clamp (5) is made of conductive materials.

3. The flashing type power transmission line external damage prevention warning device as claimed in claim 1, wherein the upper hemisphere (1) and the lower hemisphere (2) are both made of conductive materials, and the upper hemisphere (1) and the lower hemisphere (2) are connected with each other in an equipotential manner through conducting wires; the fixing clamp (5) is made of plastic materials.

4. The flashing type warning device for preventing the external damage to the power transmission line as claimed in claim 1, wherein the fixing clip (5) is provided with a wire clamping groove (7) and a screw hole (6).

5. The flickering type power transmission line external damage prevention warning device according to claim 1, wherein the control circuit is a multi-chip set, the surface of the multi-chip set is sprayed with single-component acrylic transparent protective paint, and thick metal film packaging is performed.

6. The flickering type power transmission line external damage prevention warning device according to claim 1, wherein transient voltage suppression diodes are arranged at two ends of the energy collection module.

7. The flickering type power transmission line external damage prevention warning device according to claim 1, wherein a voltage stabilizing tube is arranged at the front end of the energy collection module.

8. The flickering type power transmission line external damage prevention warning device according to claim 1, wherein the power amplification module is an OTL power amplification circuit.

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