Decontamination device for photoelectric sensor lens of airplane

Abstract

The invention belongs to the technical field of aircraft design, and relates to an aircraft photoelectric sensor lens decontamination device which comprises a front reflective ring, a pressing ring, a fixed electrode, a sliding electrode, a spring electrode, a plurality of frame film combination layers, a lens, a light emitting diode, a photoresistor, a rear reflective ring, a plurality of electromagnets and a supporting outer cylinder. By utilizing the characteristic that the memory alloy can deform at a specific temperature, when the lens is polluted, the memory alloy frame is electrified and heated to be curled, and the antifouling film is driven to be rolled and uncovered together, so that the lens decontamination is realized. The decontamination device is simple in structure, high in reliability and good in decontamination effect.

Description

Technical Field

[0001] This invention belongs to the field of aircraft design technology, and relates to aircraft sensor design technology, specifically to a cleaning device for aircraft photoelectric sensor lenses. Background Technology

[0002] With the development of technology, modern aircraft are equipped with a large number of advanced devices, including many photoelectric sensors. The lenses of these photoelectric sensors require a high degree of cleanliness; contamination of the lenses will significantly reduce the performance of the equipment. Typically, photoelectric sensor lenses are maintained regularly by ground crew, but this ground maintenance is not only labor-intensive but also fails to address the problem of lens contamination during flight. To solve the problem of performance degradation caused by contamination of photoelectric sensor lenses during aircraft flight, it is necessary to design a decontamination device for aircraft photoelectric sensor lenses. Summary of the Invention

[0003] The purpose of this invention is to address the problem of performance degradation caused by contamination of photoelectric sensor lenses during aircraft flight. This invention provides a lens cleaning device for aircraft photoelectric sensors. By attaching a thin film to the lens and utilizing the shape memory alloy's deformability at specific temperatures, when the lens becomes contaminated, an electrically heated shape memory alloy frame is caused to curl, pulling the anti-contamination film along with it to be removed, thus achieving lens cleaning. This cleaning device is simple in structure, highly reliable, and provides excellent cleaning results.

[0004] Technical solution A cleaning device for an aircraft photoelectric sensor lens includes a front reflector, a clamping ring, a fixed electrode, a sliding electrode, a spring electrode, several frame thin film composite layers, a lens, a light-emitting diode, a photoresistor, a rear reflector, several electromagnets, and a supporting outer cylinder, wherein: Several electromagnets are evenly arranged in grooves on the inner circumference of the bottom of the supporting outer cylinder; the rear reflector is fixed on the inner circumference of the bottom of the supporting outer cylinder, the light-emitting diode is fixed in through hole one of the supporting outer cylinder wall, the photoresistor is fixed in through hole two of the supporting outer cylinder wall, the lens is set inside the supporting outer cylinder and fixed to the rear reflector; several frame film composite layers are set inside the supporting outer cylinder and adsorbed onto the lens; the clamping ring is made of magnetic material and adsorbed onto the electromagnet core; there are two sliding electrodes, both fixed on the clamping ring, and the ends of the two sliding electrodes respectively extend out of the sliding groove one and sliding groove two of the supporting outer cylinder wall, and can slide in sliding groove one and sliding groove two respectively; there are two fixed electrodes, respectively set The electrodes are placed in the first and second sliding grooves of the outer cylinder wall and connected to the two sliding electrodes respectively. The fixed electrode is connected to the power supply. There are two spring electrodes, which are fixed in the second and third through holes of the outer cylinder wall respectively. When the sliding electrode slides to the upper part of the groove, it can contact the two spring electrodes respectively. The two spring electrodes contact the two electrodes of the uppermost frame film composite layer respectively. The front reflector is fixed at the front end of the outer cylinder. The front reflector and the reflector are used to reflect the light of the light-emitting diode. The photoresistor controls the heat generated by the frame film composite layer through the control circuit according to the intensity of the light of the light-emitting diode reflected by the front reflector and the reflector.

[0005] Furthermore, the frame-film composite layer includes a shape memory alloy frame and a film. The film is electrostatically adsorbed onto the lens, and the shape memory alloy frame is fixed onto the film by adhesive bonding. Two electrodes are disposed on the shape memory alloy frame, which respectively contact two spring electrodes.

[0006] Furthermore, the control circuit includes: a light-emitting diode circuit, a photoresistor circuit, an electromagnet circuit, and a shape memory alloy frame circuit; The LED circuit includes: power supply, protective resistor, switch, and LED, which are connected in series. The photoresistor circuit includes: power supply, protective resistor, switch, photoresistor, and electromagnetic relay. The power supply, protective resistor, and switch are connected in series, while the photoresistor and electromagnetic relay are connected in parallel. An electromagnet circuit includes: a power supply, a protective resistor, an electromagnetic relay, and an electromagnet, connected in series. The shape memory alloy frame circuit includes: a power supply, a protective resistor, a switch, and a shape memory alloy frame, which are connected in series.

[0007] Furthermore, the inner side of the front reflector ring has a serrated reflective surface for reflecting the light from the LED.

[0008] Furthermore, the inner side of the rear reflector has a serrated reflective surface, which works in conjunction with the front reflector to reflect the light from the LED, forming a dense optical path to determine whether the lens is contaminated, and finally projecting the light onto the photoresistor.

[0009] Furthermore, the photoresistor is installed at the bottom of the supporting outer cylinder. Due to the obstruction of the supporting outer cylinder, only light at a specific angle can shine on the photoresistor. When the light intensity decreases, the resistance value of the photoresistor increases.

[0010] Furthermore, the magnetic poles at the bottom of the clamping ring are the same as those of the electromagnet, and the clamping ring has a groove on its side that is bonded to the sliding electrode. When the electromagnet is not energized, the clamping ring is attracted to the iron core of the electromagnet, pressing the shape memory alloy frame and the film so that they will not be blown away by the airflow. When the electromagnet is energized, the clamping ring is bounced away by the magnetic force, releasing the clamping effect, and at the same time, it causes the sliding electrode to contact the spring electrode, so that the shape memory alloy frame is energized and heated.

[0011] Furthermore, one end of the spring electrode is cylindrical to facilitate contact with the sliding electrode, while the other end is a spring-loaded sheet that presses against the electrode of the shape memory alloy frame. When the top layer of the shape memory alloy frame and the thin film are removed, the spring-loaded sheet will press against the electrode of the next layer of the shape memory alloy frame.

[0012] Furthermore, the shape memory alloy frame is a circular frame made of shape memory alloy metal, with exposed electrodes at both ends. When energized, it will be heated and curl up when it reaches a specific temperature, causing the thin film to be peeled off and blown away by the airflow.

[0013] Furthermore, the electromagnet has a structure in which a coil is wound around an iron core. When energized, the magnetic poles generated are the same as the magnetic poles corresponding to the clamping ring, thus generating a repulsive force.

[0014] Beneficial effects This invention provides a lens cleaning device for aircraft photoelectric sensors. The invention utilizes the sawtooth-shaped reflective surfaces of the front and rear reflectors to mutually reflect the light from the LED, creating a dense network of light paths on the lens, which are ultimately projected onto a photoresistor. Even a small amount of contamination on the lens will block the light path, triggering the cleaning process. This design is highly sensitive to lens contamination and requires no human intervention, making the process simple and quick. When the electromagnet is not energized, it connects to the clamping ring via an iron core, locking the shape memory alloy frame and the thin film. When energized, a repulsive force is generated, releasing the clamping effect and causing the sliding electrode to contact the spring electrode, heating the shape memory alloy frame. This process links several mechanical actions together, increasing the reliability of the mechanism and making the structure simple and reliable. After the shape memory alloy frame is heated to a specific temperature, it curls up, pulling the thin film along with it, which is then blown away by the airflow, achieving the cleaning effect. This design has good cleaning performance and a simple and reliable structure. The principle of this invention is clear, easy to produce, highly practical, and easy to promote and apply, possessing significant value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a lens cleaning device for an aircraft photoelectric sensor. Figure 2 This is an exploded view of a lens cleaning device for an aircraft photoelectric sensor. Among them, 1-front reflector, 2-pressure ring, 3-fixed electrode, 4-sliding electrode, 5-spring electrode, 6-shape memory alloy frame, 7-film, 8-other frame films, 9-lens, 10-light-emitting diode, 11-photoresistor, 12-rear reflector, 13-electromagnet, 14-supporting outer cylinder.

[0016] Figure 3 This is a schematic diagram of the front reflector.

[0017] Figure 4 This is a schematic diagram of the rear reflector.

[0018] Figure 5 This is a schematic diagram of the compression ring.

[0019] Figure 6 This is a schematic diagram showing the disconnection of the fixed electrode, sliding electrode, and spring electrode.

[0020] Among them, 2-compression ring, 3-fixed electrode, 4-sliding electrode, 5-spring electrode, and 6-shape memory alloy frame.

[0021] Figure 7 This is a schematic diagram of a closed circuit with a fixed electrode, a sliding electrode, and a spring electrode.

[0022] Among them, 2-compression ring, 3-fixed electrode, 4-sliding electrode, 5-spring electrode, and 6-shape memory alloy frame.

[0023] Figure 8 This is a schematic diagram of a shape memory alloy frame and a thin film.

[0024] Among them, 6-shape memory alloy frame, 7-thin film.

[0025] Figure 9 This is a schematic diagram of the shape memory alloy frame and the thin film curling and peeling.

[0026] Among them, 6-shape memory alloy frame, 7-thin film, 8-other frame thin film Figure 10 This is a schematic diagram of a light-emitting diode and a photoresistor.

[0027] Among them, 10 is a light-emitting diode and 11 is a photoresistor.

[0028] Figure 11 This is a schematic diagram of the light path from the LED to the photoresistor via the reflector.

[0029] Among them, 1-front reflector, 10-light-emitting diode, 11-photoresistor, 12-rear reflector.

[0030] Figure 12 This is a schematic diagram of an electromagnet.

[0031] Figure 13 This is a schematic diagram of the outer cylinder support.

[0032] Figure 14 This is a schematic diagram of the installation on the side of the outer cylinder support.

[0033] Among them, 3-fixed electrode, 4-sliding electrode, 5-spring electrode, 10-light-emitting diode, 11-photoresistor.

[0034] Figure 15 This is a circuit diagram.

[0035] Among them: 15-Power supply, 16-Protective resistor, 17-Switch, 10-Light emitting diode, 18-Power supply, 19-Protective resistor, 20-Switch, 11-Photoresistor, 21-Electromagnetic relay, 22-Power supply, 23-Protective resistor, 21-Electromagnetic relay, 13-Electromagnet, 24-Power supply, 25-Protective resistor, 26-Switch, 6-Memory alloy frame. Detailed Implementation

[0036] The invention will now be further described with reference to the accompanying drawings: refer to Figure 1-14 This invention proposes a cleaning device for aircraft photoelectric sensor lenses. The device includes a front reflector 1, a clamping ring 2, a fixed electrode 3, a sliding electrode 4, a spring electrode 5, a shape memory alloy frame 6, a thin film 7, a frame-thin film composite layer 8, a lens 9, a light-emitting diode 10, a photoresistor 11, a rear reflector 12, an electromagnet 13, and a supporting outer cylinder 14.

[0037] Electromagnet 13 is glued to a groove at the bottom of the supporting outer cylinder 14. Rear reflector 12 is glued to the bottom of the supporting outer cylinder 14. Light-emitting diode 10 is glued to a through hole on one side of the supporting outer cylinder 14. Photoresistor 11 is glued to a through hole on one side of the supporting outer cylinder 14. Lens 9 is glued to rear reflector 12. Film 7 is electrostatically adsorbed onto lens 9. Shape memory alloy frame 6 is glued to film 7. Multiple layers of frame and film are then stacked to achieve multiple cleaning operations. Pressure ring 2 is magnetically adsorbed onto the core of electromagnet 13. Sliding electrode 4 is glued to a groove in pressure ring 2. The other end of sliding electrode 4 is inserted into a groove on the side of supporting outer cylinder 14. Fixed electrode 3 is connected to a power source on one side and glued to a groove on the side of supporting outer cylinder 14 on the other side. Spring electrode 5 is glued to a through hole on one side of supporting outer cylinder 14. The spring of spring electrode 5 presses against the electrode of shape memory alloy frame 6. The front reflector 1 is fixed to the front end of the supporting outer cylinder 14 by adhesive bonding.

[0038] The control circuit includes: LED 10 circuit, photoresistor 11 circuit, electromagnet 13 circuit, and shape memory alloy frame 6 circuit. LED 10 circuit includes: power supply 15, protective resistor 16, switch 17, and LED 10, connected in series. Photoresistor 11 circuit includes: power supply 18, protective resistor 19, switch 20, photoresistor 11, and electromagnetic relay (21), connected in series, with photoresistor 11 and electromagnetic relay 21 connected in parallel. Electromagnet 13 circuit includes: power supply 22, protective resistor 23, electromagnetic relay 21, and electromagnet 13, connected in series. Shape memory alloy frame 6 circuit includes: power supply 24, protective resistor 25, switch 26, and shape memory alloy frame 6, connected in series.

[0039] The inner side of the front reflector 1 has a serrated reflective surface that can reflect the light from the light-emitting diode 10.

[0040] The rear reflector 12 has a serrated reflective surface on its inner side, which can work with the front reflector 1 to reflect the light from the light-emitting diode 10, forming a dense light path to determine whether the lens is contaminated, and finally projecting the light onto the photoresistor 11.

[0041] The photoresistor 11 is installed at the bottom of the sleeve and is blocked by the sleeve. Only light at a specific angle can shine on the photoresistor 11, and the resistance increases when the illumination is weakened.

[0042] The clamping ring 2 is made of a strong magnetic material (such as neodymium magnet). The magnetic poles at the bottom of the clamping ring 2 are the same as those of the electromagnet 13. The clamping ring 2 has a groove on its side and is bonded to the sliding electrode 4. When the electromagnet 13 is not energized, the clamping ring 2 is attracted to the iron core of the electromagnet 13, pressing the shape memory alloy frame 6 and the film 7 to prevent them from being blown away by the airflow (the electrostatic attraction force is relatively small, so additional clamping force is required). When the electromagnet 13 is energized, the clamping ring 2 is pushed away by the magnetic force, releasing the clamping effect. At the same time, it causes the sliding electrode 4 to come into contact with the spring electrode 5, which in turn energizes and heats the shape memory alloy frame 6.

[0043] One end of the spring electrode 5 is cylindrical to facilitate contact with the sliding electrode 4, and the other end is a spring-loaded piece that presses against the electrode of the shape memory alloy frame 6. When the top layer of shape memory alloy frame 6 and film 7 is removed, the spring-loaded piece will press against the electrode of the next layer of shape memory alloy frame 6.

[0044] The shape memory alloy frame 6 is a circular frame made of shape memory alloy metal. It has exposed electrodes at the ends. When energized, it will be heated and curl up when it reaches a specific temperature, which will lift the thin film 7 and blow it away with the airflow.

[0045] The electromagnet 13 has a structure in which a coil is wound around an iron core. When energized, the magnetic poles generated are the same as the magnetic poles corresponding to the clamping ring 2, thus generating a repulsive force.

[0046] The outer support cylinder 14 is a cylindrical structure with a groove at the bottom for pressing the electromagnet 13, and through holes on the side for installing the spring electrode 5, the light-emitting diode 10, and the photoresistor 11. The fixed electrode 3 is glued and installed in the groove on the side and contacts the sliding electrode 4.

[0047] In this invention: The outer support cylinder 14 is the supporting structure of this invention, and all parts are installed or constrained on the outer support cylinder 14. The bottom of the outer support cylinder 14 has a groove for bonding the electromagnet 13. A rear reflector 12 is bonded to the bottom of the outer support cylinder 14, and a lens 9 is bonded to the upper part of the rear reflector 12. A thin film 7 is electrostatically attached to the lens 9, and a shape memory alloy frame 6 is bonded to the thin film 7. The film and frame are repeatedly overlapped in multiple layers, allowing for multiple cleaning processes. A clamping ring 2, made of a strong magnetic material (such as a neodymium magnet), is attached to the iron core of the electromagnet 13 by magnetic force, pressing the shape memory alloy frame 6 to maintain its adhesion in the airflow. A front reflector 1 is bonded to the front end of the outer support cylinder 14. Two through holes are glued to the bottom side of the outer cylinder 14, where a light-emitting diode 10 and a photoresistor 11 are bonded. Two through holes are glued to the upper side of the outer cylinder 14, where the positive and negative electrodes of a spring electrode 5 are bonded. The other end of the spring electrode 5 is pressed against the exposed electrode end of the compression shape memory alloy frame 6. A slot is cut in the middle of the side of the outer cylinder 14, where a fixed electrode 3 is glued. The other end of the fixed electrode 3 is connected to a power source. One end of the sliding electrode 4 is inserted into the slot in the middle of the side of the outer cylinder 14, and the other end is glued to the slot of the compression ring 2.

[0048] When the photoelectric sensor is powered on, the circuit switch of the light-emitting diode 10 closes, and the light-emitting diode 10 emits light. The sawtooth-shaped reflective surfaces of the front reflector 1 and the rear reflector 12 work together to reflect the light from the light-emitting diode 10 back and forth, ultimately projecting it onto the photoresistor 11 (the photoresistor 11 is installed at the bottom of the sleeve, and due to the obstruction of the sleeve, it can only receive light at a specific angle; when the light weakens, the resistance of the photoresistor 11 increases), and the light path is densely distributed on the lens 9. Even a slight contamination of the lens 9 will cause the light path to be blocked, increasing the resistance of the photoresistor 11 and the voltage across the photoresistor 11. When the voltage across the electromagnetic relay 21 connected in parallel with the photoresistor 11 reaches its rated voltage, the circuit switch of the electromagnet 13 closes. The magnetic poles generated by the electromagnet 13 after being energized are the same as those of the opposing clamping ring 2, generating a repulsive force that pushes the clamping ring 2 upward, releasing the clamping effect. At the same time, it drives the sliding electrode 4 upward to contact the spring electrode 5, causing the circuit switch of the shape memory alloy frame 6 to close. After the shape memory alloy frame 6 is heated to its rated temperature, it deforms and curls, causing the thin film 7 to curl as well. The contaminated thin film 7 is eventually removed by the airflow, achieving the decontamination effect. After the contaminants are removed, the optical paths of the front reflector 1 and the rear reflector 12 are restored, the resistance of the photoresistor 11 decreases, the electromagnetic relay 21 is disconnected, the magnetism of the electromagnet 13 is eliminated, and the clamping ring 2 is attracted by the iron core of the electromagnet 13, locking the shape memory alloy frame 6, and the device returns to normal operation.

[0049] This invention utilizes the front reflector 1 and rear reflector 12 to reflect light mutually, creating a dense network of light paths on the lens 9. When contamination blocks these light paths, the device initiates a cleaning process. This design is highly sensitive to lens contamination, requires no human intervention, and is simple and quick. When the electromagnet 13 is not energized, it is connected to the clamping ring 2 via its iron core, locking the shape memory alloy frame 6 and the film 7 in place. When energized, it generates a repulsive force, releasing the clamping effect and causing the sliding electrode 4 to contact the spring electrode 5, thus heating the shape memory alloy frame 6. This design links several mechanical actions together, making the mechanism simple and reliable. After the shape memory alloy frame 6 is heated, it reaches a specific temperature and curls up, causing the film 7 to be rolled up and removed, then blown away by the airflow to achieve the cleaning effect. This invention has a clear principle, is easy to manufacture, highly practical, and easy to promote and apply, possessing significant value.

Claims

1. An aircraft electro-optical sensor lens decontamination apparatus, comprising: The application relates to a light-emitting device, which comprises a front diaphragm (1), a compression ring (2), fixed electrodes (3), sliding electrodes (4), spring electrodes (5), a plurality of frame-film combination layers (8), a lens (9), light-emitting diodes (10), a photosensitive resistor (11), a rear diaphragm (12), a plurality of electromagnets (13) and a supporting outer cylinder (14), wherein: The plurality of electromagnets (13) are evenly arranged in the grooves in the bottom circumferential inner wall of the supporting outer cylinder (14); the rear diaphragm (12) is fixed on the bottom circumferential inner wall of the supporting outer cylinder (14), the light-emitting diodes (10) are fixed in the through holes one of the cylinder wall of the supporting outer cylinder (14), the photosensitive resistor (11) is fixed in the through holes two of the cylinder wall of the supporting outer cylinder (14), the lens (9) is arranged in the supporting outer cylinder (14) and is fixed with the rear diaphragm (12); the plurality of frame-film combination layers (8) are arranged in the supporting outer cylinder (14) and are adsorbed on the lens (9); the compression ring (2) is made of magnetic material and is adsorbed on the iron core of the electromagnet (13); the sliding electrodes (4) are two in number, are fixed on the compression ring (2) and respectively correspond to the slide grooves one and two of the cylinder wall of the supporting outer cylinder (14) and can slide in the slide grooves one and two respectively; the fixed electrodes (3) are two in number, are arranged in the slide grooves one and two of the cylinder wall of the supporting outer cylinder (14) and are connected with the two sliding electrodes (4) one by one respectively, and the fixed electrodes are connected with a power supply; the spring electrodes (5) are two in number, the two spring electrodes (5) are fixed in the through holes two and three of the cylinder wall of the supporting outer cylinder (14), the sliding electrodes (4) can be in one-to-one contact with the two spring electrodes (5) when sliding to the upper part of the slide grooves; the two spring electrodes (5) are in one-to-one contact with the two electrodes of the uppermost frame-film combination layer (8); the front diaphragm (1) is fixed at the front end of the supporting outer cylinder (14); the front diaphragm (1) and the rear diaphragm (12) are used for reflecting the light of the light-emitting diodes (10); the photosensitive resistor controls the frame-film combination layer (8) to generate heat according to the light intensity of the light-emitting diodes reflected by the front diaphragm (1) and the rear diaphragm (12) through a control circuit.

2. The aircraft photo-sensor lens decontamination device of claim 1, wherein, The frame-film combination layer (8) comprises a memory alloy frame (6) and a film (7), the film (7) is adsorbed on the lens (9) through electrostatic adsorption, the memory alloy frame (6) is fixed on the film (7) through glue joint, two electrodes are arranged on the memory alloy frame (6) and are in one-to-one contact with the two spring electrodes (5) respectively.

3. The aircraft photo-sensor lens decontamination apparatus of claim 2, wherein, The control circuit comprises a light-emitting diode (10) circuit, a photosensitive resistor (11) circuit, an electromagnet (13) circuit and a memory alloy frame (6) circuit. The light-emitting diode (10) circuit comprises a power supply (15), a protection resistor (16), a switch (17) and a light-emitting diode (10), which are connected in series. The light-sensitive resistor (11) circuit comprises: a power supply (18), a protection resistor (19), a switch (20), the light-sensitive resistor (11), and an electromagnetic relay (21), wherein the power supply (18), the protection resistor (19), and the switch (20) are connected in series, and the light-sensitive resistor (11) and the electromagnetic relay (21) are connected in parallel; The electromagnet (13) circuit comprises: a power supply (22), a protection resistor (23), an electromagnetic relay (21), and the electromagnet (13), wherein the power supply (22), the protection resistor (23), the electromagnetic relay (21), and the electromagnet (13) are connected in series. The memory alloy frame (6) circuit comprises: a power supply (24), a protection resistor (25), a switch (26), and the memory alloy frame (6), wherein the power supply (24), the protection resistor (25), and the switch (26) are connected in series, and the memory alloy frame (6) is connected in parallel.

4. The aircraft photo-sensor lens decontamination apparatus of claim 3, wherein, The front reflector (1) has a sawtooth-shaped reflective surface inside, which is used for reflecting the light of the light-emitting diode (10).

5. The aircraft photo-sensor lens decontamination apparatus of claim 4, wherein, The rear reflector (12) has a sawtooth-shaped reflective surface inside, which is used for reflecting the light of the light-emitting diode (10) in cooperation with the front reflector (1) to form a dense light path for judging whether the lens is contaminated, and finally projecting the light onto the light-sensitive resistor (11).

6. The aircraft photo-sensor lens decontamination apparatus of claim 5, wherein, The light-sensitive resistor (11) is installed at the bottom of the supporting outer cylinder (14) and is shielded by the supporting outer cylinder (14), so that only light of a specific angle can irradiate the light-sensitive resistor (11), and the resistance value of the light-sensitive resistor (11) increases when the light intensity decreases.

7. The aircraft photo-sensor lens decontamination apparatus of claim 6, wherein, The magnetic poles of the compression ring (2) at the bottom are the same as those of the electromagnet (13), and the side surface of the compression ring (2) is slotted and glued with the sliding electrode (4); when the electromagnet (13) is not powered, the compression ring (2) is adsorbed on the iron core of the electromagnet (13), and the compression ring (2) tightly compresses the memory alloy frame (6) and the thin film (7) and prevents them from being blown away by the air flow; when the electromagnet (13) is powered, the compression ring (2) is repelled by the magnetic force, the compression effect is released, and the sliding electrode (4) is driven to contact the spring electrode (5), so that the memory alloy frame (6) is powered and heated.

8. The aircraft photo-sensor lens decontamination apparatus of claim 7, wherein, The spring electrode (5) has a cylindrical shape at one end for easy contact with the sliding electrode (4), and a spring leaf at the other end for pressing on the electrode of the memory alloy frame (6); when the uppermost memory alloy frame (6) and the thin film (7) are removed, the spring leaf will press on the electrode of the next memory alloy frame (6).

9. The aircraft photo-sensor lens decontamination apparatus of claim 8, wherein, The memory alloy frame (6) is a circular ring frame made of memory alloy metal, has exposed electrodes at both ends, is heated after being powered, and is curled after reaching a specific temperature, thereby driving the thin film (7) to be lifted and blown away by the air flow.

10. The aircraft photo-sensor lens decontamination apparatus of claim 8, wherein, The electromagnet (13) has a structure of a coil-wound iron core, and the magnetic poles generated after being powered are the same as the corresponding magnetic poles of the compression ring (2), thereby generating a repulsive force.

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