An LED spotlight

Abstract

The present invention provides an LED spotlight, which belongs to the technical field of lamps. The LED spotlight includes a base, a spotlight body, a cooling assembly and a thermal expansion mechanism. The base is arranged on the ceiling, the spotlight body is installed at the bottom of the base, the cooling assembly is arranged inside the spotlight body, and the thermal expansion mechanism is inserted inside the spotlight body. The cooling assembly and the thermal expansion mechanism are both electrically connected to the spotlight body. The base supports the spotlight body and provides power to the spotlight body. The spotlight body is used to emit light and illuminate the surroundings. When a power outage occurs, an independent power supply can provide power for a short time, allowing the cooling assembly to cool the spotlight body and the thermal expansion mechanism, thereby extending the service life of the LED spotlight. The brush of the thermal expansion mechanism can clean the spotlight body and the inside of the spotlight body to make the light brighter. Multiple transparent conductive grids can also form a wedge-shaped light-transmitting cover for the entire light-transmitting cover, thereby changing the light-emitting direction of the LED spotlight so that people can continue to work.

Description

Technical Field

[0001] The present invention relates to the technical field of lamps, and in particular to an LED spotlight. Background Art

[0002] Spotlights are a classic example of modern lighting, free-standing and without a central focal point. They can create a room's atmosphere. When combined in a row, they create a dazzling array of light patterns. Because they can be angled freely, the combined lighting effects are endless. Spotlights offer a soft, elegant light and can also be used for localized lighting to enhance the atmosphere. However, most spotlights lack dust resistance, and this performance is often poor. Dust accumulation over time shortens their lifespan and reduces the overall lighting effect. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an LED spotlight that can emit light for a short time during a power outage and can clean the interior of a device, so as to solve at least one of the above technical problems.

[0004] An LED spotlight includes a base, a spotlight body, a cooling assembly and a thermal expansion mechanism. The base is installed on the ceiling, the spotlight body is installed at the bottom of the base, the cooling assembly is installed inside the spotlight body, and the thermal expansion mechanism is inserted inside the spotlight body. The cooling assembly and the thermal expansion mechanism are both electrically connected to the spotlight body.

[0005] The base supports and provides power to the spotlight body, which is used to emit light to illuminate the surroundings. In the event of a power outage, it can still emit light for a short time. The cooling component cools the spotlight body and the thermal expansion mechanism to extend the service life of the LED spotlight. The thermal expansion mechanism not only cleans the inside of the spotlight body to make the light brighter, but also changes the illumination range of the light refraction, allowing people to continue working.

[0006] In one embodiment, the base includes a base, a turntable, a connecting rod and a circuit board. The base is installed on the ceiling, the upper end of the turntable is installed on the bottom of the base, and the upper end of the connecting rod is installed on the bottom of the turntable. The lower end of the connecting rod is inserted into the spotlight body, and the circuit board is installed inside the base.

[0007] The base supports the spotlight body, the turntable can rotate 360 degrees according to the controller to illuminate different locations, the connecting rod connects the spotlight body, and the circuit board provides power to the spotlight body to generate electricity and illuminate the surroundings.

[0008] In one embodiment, the spotlight body includes a shell, an LED lamp, a reflective film, a light source fixing socket, a light-transmitting cover and an independent power supply. The shell is tilted and located below the turntable. The shell is connected to the lower end of the connecting rod. The LED lamp is installed at the center position of the shell away from one end of the connecting rod. The reflective film is attached to the inner wall of the shell. The light source fixing socket is installed at the upper end of the shell. The light-transmitting cover is installed at the lower end of the shell, and the edge of the light-transmitting cover abuts the lower edge of the shell. The LED lamp is electrically connected to the circuit board. The independent power supply is installed inside the shell and electrically connected to the LED lamp.

[0009] The LED light emits light, illuminating the surrounding area. The reflector reflects light, expanding the area and brightening the surroundings. The light fixture is used to secure the LED light, preventing it from swaying and causing unstable light. The light shield not only refracts light, expanding its range, but also prevents dust from entering the spotlight body and causing contamination. The independent power supply provides power to the LED light, cooling components, and thermal expansion mechanism during power outages.

[0010] In one embodiment, the light-transmitting cover includes a light-transmitting cover body, a chip-blocking light-transmitting cover, a tension spring and multiple transparent conductive grids. The light-transmitting cover body is fixedly mounted on the inner side of the lower end of the shell, and the light-transmitting cover body includes multiple light-transmitting plates connected to each other and deformable by heat. Multiple light-transmitting plates are mounted on the upper surface of the light-transmitting cover body, and a circular dust removal groove is opened in the edge area adjacent to the light-transmitting cover body. The dust removal groove passes through the upper and lower surfaces of the light-transmitting cover body. The chip-blocking light-transmitting cover is mounted in the dust removal groove, and the end of the chip-blocking light-transmitting cover away from the central axis of the shell is hinged to the side wall edge of the dust removal groove. The tension spring is mounted on the top of the chip-blocking light-transmitting cover, and one end of the tension spring is connected to the shell, and the other end is connected to the top of the chip-blocking light-transmitting cover, so that the chip-blocking light-transmitting cover is enclosed in the dust removal groove. Multiple transparent conductive grids are respectively embedded in the upper surfaces of multiple light-transmitting plates and are all connected to independent power supplies.

[0011] The chip-blocking light-transmitting cover is used as an outlet for chip removal, and the tension spring is used to restore the state of the chip-blocking light-transmitting cover. The chip-blocking light-transmitting cover is embedded in the dust removal trough. When the power is off, multiple transparent conductive grids are used to heat the thermal expansion mechanism, slightly changing the shape of the light-transmitting cover, so that the light emitted by the LED lamp changes and the illumination range is increased. Multiple light-transmitting plates are used to carry multiple transparent conductive grids.

[0012] In one embodiment, an LED lamp trough is defined in the center of the light source mounting base, into which the LED lamp is inserted. The mounting base also includes a cooling trough, which is positioned on one side of the LED lamp trough and angled toward the chip-blocking light shield. The LED lamp trough is used to house the LED lamp, and the cooling trough is used to accommodate the cooling assembly.

[0013] In one embodiment, the cooling assembly includes a fan and a drive motor. The fan is installed in the cooling tank and is inclined relative to the central axis of the outer shell, and the fan faces the chip-blocking light shield. The drive motor is installed on the bottom wall of the cooling tank, and the drive motor is electrically connected to the transparent conductive grid. The fan is connected to the drive motor, and the drive motor is electrically connected to an independent power supply.

[0014] During normal use, the LED light is connected to the mains and charges the independent power supply, while the cooling assembly is turned off. In the event of a power outage, the independent power supply provides power to the cooling assembly's drive motor, which rotates and drives the fan to cool the thermal expansion mechanism.

[0015] In one embodiment, the thermal telescopic mechanism includes a telescopic rod, two storage boxes, two brushes and two springs. The telescopic rod is inclined on the inner wall of the upper end of the shell, and the telescopic rod is inclined relative to the inner wall of the shell. The two storage boxes are respectively installed on both sides of the lower end of the telescopic rod, and one end of the storage box is passed through the end of the telescopic rod. The two brushes are respectively inserted into the sides of the two storage boxes away from each other, and the lower side of each brush abuts against the light-transmitting cover. The two springs are respectively installed inside the ends of the two brushes close to the telescopic rod. Multiple transparent conductive grids are electrically connected to the top of the telescopic rod through wires, and are electrically connected to an independent power supply.

[0016] During a power outage, an independent power supply provides electricity to the transparent conductive grid, heating the telescopic rod. The telescopic rod will extend when heated to lift up the light-transmitting cover, refracting the light and expanding the range of light exposure. The storage box is used to store a brush, which moves downward with the telescopic rod to clean the light-transmitting cover, making the light-transmitting cover clean and making the light passing through the light-transmitting cover brighter. The spring is used to cooperate with the brush to move downward with the telescopic rod, and the brush will freely extend and retract according to the distance it abuts against the inner edge of the shell.

[0017] In one embodiment, each brush includes a storage section and multiple contraction sections connected in sequence. A storage groove is provided inside the storage box, and the storage groove runs through the bottom of the storage box. The storage section is inserted into the storage groove of the corresponding storage box and connected to the end of the corresponding spring. The spring is installed in the storage section, and the multiple contraction sections are installed at the end of the storage section away from the end of the telescopic rod, and the end of the storage section abuts the edge of the reflective film. The lower end of the storage section is lower than the bottom of the storage box, and the brush gradually narrows toward the end of the edge of the reflective film, so that when the brush cleans the translucent cover downward, the contraction section of the brush can freely retract and retract in the storage section. An annular guide groove is formed on the inner circumference of the lower end of the shell, and a movable sphere is formed on the end of the brush, which is slidably stuck in the annular guide groove.

[0018] The storage section is used to accommodate multiple contraction sections. When the brush moves downward, the movable ball formed at the end will move along the annular guide groove to prevent the brush from falling off. The storage section will freely expand and contract according to the contact between the contraction section and the inner edge of the shell.

[0019] In one embodiment, the surface of the telescopic rod is coated with a reflective film layer. The telescopic rod includes a metal rod, a bending memory alloy and a push rod connected in sequence. The metal rod is fixedly connected to the inner side wall of the upper end of the shell and is electrically connected to the transparent conductive grid. The bending memory alloy is located inside the shell. The lower end of the push rod is installed between the two storage boxes. The distance between the push rod and the central axis of the shell gradually decreases in the downward direction, and a thermal pad is formed at the end of the push rod. The thermal pad slides on the light-transmitting cover. Multiple transparent conductive grids are used to heat multiple light-transmitting plates accordingly, so that the thickness of the multiple light-transmitting plates increases according to preset rules, so that the entire light-transmitting cover forms a wedge-shaped light-transmitting cover, thereby changing the light output direction of the LED spotlight. At the same time, the multiple transparent conductive grids can heat the telescopic rod, so that the bending memory alloy extends obliquely downward, thereby pushing the two brushes to move relative to the upper surface of the light-transmitting cover to perform the cleaning operation, until the brush pushes the chip-blocking light-transmitting cover to flip open the dust removal slot, and cooperate with the airflow of the fan to make the dust fall out of the dust removal slot. The fan can cool the telescopic rod, so that the telescopic rod cools and moves in the opposite direction, thereby restoring its original state.

[0020] The reflective film layer is used to reflect light. During a power outage, the independent power supply provides electricity, heating the metal rod. The heat from the metal rod is transferred to the bendable memory alloy, causing it to extend. The push rod pushes down the light shield as the bendable memory alloy extends, until the push rod lifts the chip-blocking light shield and flips it over. The independent power supply also provides power to the cooling assembly's drive motor. The drive motor rotates, driving the fan, cooling the memory alloy and restoring the upward-facing memory alloy to its original shape. Once the memory alloy returns to its original shape, the heat from the metal rod is transferred to the bendable memory alloy, causing it to extend and push down to lift the light shield, repeating this motion. A brush follows the movement of the telescopic rod to repeatedly clean the light shield, keeping it clean and brighter. The independent power supply also powers the LED lights, causing them to illuminate the surrounding area, allowing personnel to continue working.

[0021] In one embodiment, a sliding groove is defined within the push rod, extending from its left and right sides. One end of each storage box is positioned within the sliding groove. The width of the sliding groove is greater than the width below the groove, allowing the brush to be lifted by the light shield when the push rod lifts the chip-blocking light shield. The sliding groove ensures that when the push rod pushes downward to clean the brush, the light shield flips downward, allowing the brush to be lifted by the light shield and move relative to the push rod, exposing the push rod's thermal pad and allowing it to move downward into the dust removal chute. Compared with the prior art, the beneficial effects of the present invention are as follows: the base supports the spotlight body and provides power to the spotlight body, the spotlight body is used to emit light to illuminate the surroundings, and when a power outage occurs, the independent power supply can also provide power for a short time, so that the cooling component cools the spotlight body and the thermal expansion mechanism, thereby extending the service life of the LED spotlight, and the brush of the thermal expansion mechanism can clean the spotlight body and the inside of the spotlight body to make the light brighter. Multiple transparent conductive grids can also make the entire light-transmitting cover form a wedge-shaped light-transmitting cover, thereby changing the light output direction of the LED spotlight so that people can continue to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main plane structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the main plane structure of the present invention after a power outage;

[0024] Figure 3 This is a schematic side view of the three-dimensional structure of the present invention;

[0025] Figure 4 This is a schematic side view of the three-dimensional structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the local enlarged structure at A in the middle;

[0027] Figure 6 For the present invention Figure 1 Schematic diagram of the cross-sectional three-dimensional structure along the AA line;

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the thermal expansion mechanism of the present invention;

[0029] Figure 8 For the present invention Figure 6 Schematic diagram of the local enlarged structure at B in the middle;

[0030] Figure 9 A cross-sectional view of a portion of the structure of the LED spotlight of the present invention;

[0031] Figure 10 It is a schematic diagram of the planar structure of the light-transmitting cover of the present invention. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0034] An embodiment provided by the present invention is as follows: Figures 1 to 10 An LED spotlight is shown, comprising a base 10, a spotlight body 20, a cooling assembly 30 and a thermal expansion mechanism 40. The base 10 is mounted on the ceiling, the spotlight body 20 is mounted on the bottom of the base 10, the cooling assembly 30 is mounted inside the spotlight body 20, and the thermal expansion mechanism 40 is inserted inside the spotlight body 20. Both the cooling assembly 30 and the thermal expansion mechanism 40 are electrically connected to the spotlight body 20.

[0035] The base 10 supports and provides power to the spotlight body 20. The spotlight body 20 is used to emit light to illuminate the surroundings. In the event of a power outage, it can still emit light for a short time. The cooling component 30 cools the spotlight body 20 and the thermal expansion mechanism 40 to extend the service life of the LED spotlight. The thermal expansion mechanism 40 not only cleans the inside of the spotlight body 30 to make the light brighter, but also changes the illumination range of the light refraction so that people can continue to work.

[0036] like Figures 1 to 3 As shown, the base 10 includes a base 11, a turntable 12, a connecting rod 13 and a circuit board (not shown). The base 11 is installed on the ceiling, the upper end of the turntable 12 is installed at the bottom of the base 11, and the upper end of the connecting rod 13 is installed at the bottom of the turntable 12. The lower end of the connecting rod 13 is inserted into the spotlight body 20, and the circuit board is installed inside the base 11.

[0037] The base 10 supports the spotlight body 20, the turntable 12 can rotate according to the controller 360 to illuminate different locations, the connecting rod 13 connects the spotlight body 20, and the circuit board provides power to the spotlight body 20 to generate electricity and illuminate the surroundings.

[0038] like Figure 3 and Figure 9As shown, the spotlight body 20 includes a shell 21, an LED lamp 22, a reflective film 23, a light source fixing socket 24, a translucent cover 25 and an independent power supply (not shown). The shell 21 is tilted and located below the turntable 12. The shell 21 is connected to the lower end of the connecting rod 13. The LED lamp 22 is installed at the center position of the shell 21 away from one end of the connecting rod 13. The reflective film 23 is attached to the inner wall of the shell 21. The light source fixing socket 24 is installed at the upper end of the shell 21. The translucent cover 25 is installed at the lower end of the shell 21, and the edge of the translucent cover 25 abuts the lower end edge of the shell 21. The LED lamp 22 is electrically connected to the circuit board, and the independent power supply is installed inside the shell 21 and electrically connected to the LED lamp 22.

[0039] LED lamp 22 emits light, illuminating the surrounding area. Reflector 23 reflects the light, expanding it to a wider area and brightening the surrounding area. Light source mounting bracket 24 secures LED lamp 22, preventing it from shaking and causing unstable light. Translucent cover 25 not only refracts light, expanding its range, but also prevents dust from entering the interior of spotlight body 20 and causing contamination. An independent power supply provides power to LED lamp 22, cooling assembly 30, and thermal expansion mechanism 40 during power outages.

[0040] like Figures 8 to 10 As shown, the light-transmitting cover 25 includes a light-transmitting cover body 254, a chip-blocking light-transmitting cover 252, a tension spring 253 and a plurality of transparent conductive grids 255. For example, it can be understood that the transparent conductive grid 255 is made of indium tin oxide material, and its structure is similar to the conductive grid of the touch screen of a smart phone. The light-transmitting cover body 254 is fixedly installed on the inner side of the lower end of the shell 21, and the light-transmitting cover body 254 includes a plurality of light-transmitting plates 254a that are interconnected (for example, in one embodiment, connected together or intertwined together by elastic materials) and can be deformed by heat. The plurality of light-transmitting plates 254a are installed on the upper surface of the light-transmitting cover body 254, and a circular dust removal groove 251 is opened near the edge area of the light-transmitting cover body 254. The dust removal groove 251 runs through the upper and lower surfaces of the light-transmitting cover body 254. 252 is installed in the dust removal trough 251, and the end of the chip blocking light transparent cover 252 away from the central axis of the shell 21 is hinged to the side wall edge of the dust removal trough 251, and the tension spring 253 is installed on the top of the chip blocking light transparent cover 252, and one end of the tension spring 253 is connected to the shell 21, and the other end is connected to the top of the chip blocking light transparent cover 252, so that the chip blocking light transparent cover 252 is enclosed in the dust removal trough 251, and multiple transparent conductive grids 255 are respectively embedded in the upper surfaces of multiple light transparent plates 254a and are all connected to independent power supplies.

[0041] The chip-blocking light-transmitting cover 252 is an outlet for chip removal, and the tension spring 253 is used to restore the state of the chip-blocking light-transmitting cover 252. The chip-blocking light-transmitting cover 252 is embedded in the dust removal trough 251. When the power is off, multiple transparent conductive grids 255 are used to heat the thermal expansion mechanism 40, slightly changing the shape of the light-transmitting cover 25, so that the light emitted by the LED lamp 22 changes and increases the range of illumination. Multiple light-transmitting plates 254a are used to support multiple transparent conductive grids 255.

[0042] like Figure 1 and Figure 8 As shown, the center portion of the light source fixing base 24 defines an LED lamp trough 241, into which the LED lamp 22 is inserted. The light source fixing base 24 also defines a cooling trough 242, which is mounted on one side of the LED lamp trough 241 and tilted toward the chip-blocking light-transmitting cover 252. The LED lamp trough 241 is used to accommodate the LED lamp 22, and the cooling trough 242 is used to accommodate the cooling assembly 30.

[0043] like Figure 1 and Figure 8 As shown, the cooling assembly 30 includes a fan 31 and a drive motor 32. The fan 31 is installed in the cooling groove 242 and is inclined relative to the central axis of the outer shell 21, and the fan 31 faces the chip-blocking light-transmitting cover 252. The drive motor 32 is installed on the bottom wall of the cooling groove 242, and the drive motor 32 is electrically connected to the transparent conductive grid 255. The fan 31 is connected to the drive motor 32, and the drive motor 32 is electrically connected to an independent power supply.

[0044] During normal use, the LED lamp 22 is connected to the mains and charges the independent power supply, while the cooling assembly 30 is inactive. During a power outage, the independent power supply provides power to the drive motor 32 of the cooling assembly 30, which rotates and drives the fan 31 to cool the thermal expansion mechanism 30.

[0045] like Figures 7 to 9 As shown, the thermal telescopic mechanism 40 includes a telescopic rod 41, two storage boxes 44, two brushes 46 and two springs 47. The telescopic rod 41 is fixed obliquely on the inner wall of the upper end of the shell. The telescopic rod 41 is tilted relative to the inner wall of the shell 21. The two storage boxes 44 are respectively installed on both sides of the lower end of the telescopic rod 41, and one end of the storage box 44 is passed through the end of the telescopic rod 41. The two brushes 46 are respectively inserted into the side away from each other of the two storage boxes 44, and the lower side of each brush 46 abuts against the light-transmitting cover 25. The two springs 47 are respectively installed inside the end of the two brushes 46 close to the telescopic rod 41. A plurality of transparent conductive grids 255 are electrically connected to the top of the telescopic rod 41 through a wire, and are electrically connected to an independent power supply.

[0046] During a power outage, an independent power supply provides electricity to the transparent conductive grid 255, heating the telescopic rod 41. The telescopic rod 41 will extend when heated to lift up the light-transmitting cover 25, causing the light to refract and expand the range of light exposure. The storage box 44 is used to store a brush 46. The brush 46 moves downward with the telescopic rod 41 to clean the light-transmitting cover 25, making the light-transmitting cover 25 clean and brighter when passing through the light-transmitting cover 25. The spring 47 is used to cooperate with the brush 46 to move downward with the telescopic rod 41. The brush 46 will freely extend and retract according to the distance it abuts against the inner edge of the shell 21.

[0047] like Figure 1 and Figures 7 to 8 As shown, each brush 46 includes a storage section 461 and a plurality of contraction sections 462 connected in sequence. A storage slot 441 is provided inside the storage box 44. The storage slot 441 runs through the bottom of the storage box 44. The storage section 461 is inserted into the storage slot 441 of the corresponding storage box 44 and connected to the end of the corresponding spring 47. The spring 47 is installed in the storage section 461. The plurality of contraction sections 462 are installed at one end of the storage section 461 away from the end of the telescopic rod 41, and the ... The end of the brush 46 abuts against the edge of the reflective film 23, the lower end of the storage section 461 is lower than the bottom of the storage box 44, and the end of the brush 46 toward the edge of the reflective film 23 gradually narrows so that when the brush 46 sweeps downward to clean the translucent cover 25, the contraction section 462 of the brush 46 can freely retract and retract in the storage section 461. An annular guide groove (not shown) is formed on the inner circumferential surface of the lower end of the shell 21, and a movable ball (not shown) is formed on the end of the brush 46, which is slidably clamped in the annular guide groove.

[0048] The storage section 462 is used to accommodate multiple contraction sections 461. When the brush 46 moves downward, the movable ball formed at the end will move along the annular guide groove to prevent the brush 46 from detaching. The storage section 461 will freely expand and contract as the contraction section 461 abuts against the inner edge of the shell 21.

[0049] like Figures 7 to 10As shown, the surface of the telescopic rod 41 is coated with a reflective film layer. The telescopic rod 41 includes a metal rod 411, a bending memory alloy 412 and a push rod 413 connected in sequence. The metal rod 411 is fixedly connected to the inner wall of the upper end of the shell 21 and is electrically connected to the transparent conductive grid 255. The bending memory alloy 412 is located inside the shell 21. The lower end of the push rod 413 is installed between the two storage boxes 44. The distance between the push rod 413 and the central axis of the shell 21 gradually decreases in the downward direction, and a thermal pad (not shown) is formed at the end of the push rod 413. The thermal pad slides on the transparent cover 25. Multiple transparent conductive grids 255 are used to heat multiple transparent plates 254a accordingly, so that multiple transparent plates 254a are heated. The thickness of the plate 254a increases according to a preset rule so that the entire light-transmitting cover 25 forms a wedge-shaped light-transmitting cover 25, that is, a light-transmitting cover that is thicker on one side and thinner on the other side, thereby changing the light-emitting direction of the LED spotlight. At the same time, multiple transparent conductive grids 255 can heat the telescopic rod 41, so that the bending memory alloy 412 extends obliquely downward, thereby pushing the two brushes 46 to move relative to the upper surface of the light-transmitting cover body 254 to perform the cleaning operation, until the brush 46 pushes the chip-blocking light-transmitting cover 252 to flip open the dust removal groove 251, and cooperates with the airflow of the fan 31, so that the dust falls out of the dust removal groove 251, and the fan 31 can cool the telescopic rod 41, so that the telescopic rod 41 cools down and moves in the opposite direction, thereby restoring its original state.

[0050] The reflective film layer is used to reflect light. During a power outage, the independent power supply provides electricity, heating the metal rod 411. This heat is transferred from the metal rod 411 to the bendable memory alloy 412, causing it to extend. The push rod 413 follows the extension of the bendable memory alloy 412, pushing the light shield 25 downward until the push rod 413 lifts the chip-blocking light shield 252 and flips it over. Meanwhile, the independent power supply provides power to the drive motor 32 of the cooling assembly 30. The drive motor 32 rotates, driving the fan 31, cooling the memory alloy 412 and restoring it to its original shape. After the memory alloy 412 returns to its original shape, the heat is transferred to the bendable memory alloy 412 via the metal rod 411, causing it to extend downward and lift the light shield 25, repeating this motion. The brush 46 follows the movement of the telescopic rod 41, repeatedly cleaning the light shield 25, ensuring a cleaner and brighter light. The independent power supply also powers the LED light 22, illuminating the surrounding area and allowing personnel to continue working.

[0051] like Figure 7 and Figure 8As shown, a sliding groove 413a is provided inside the push rod 413, and the sliding groove 413a runs through the left and right sides of the push rod 413. One end of each storage box 44 is passed through the sliding groove 413a. The width above the sliding groove 413a is greater than the width below itself, so that when the push rod 413 pushes down to block the chips and the light-transmitting cover 252 flips downward, the brush 46 can be lifted up by the light-transmitting cover 25 and move relative to the push rod 413, thereby exposing the thermal pad of the push rod 413, so that the thermal pad can move down into the dust removal groove 251.

[0052] Installation Process: The base 10 is mounted on the ceiling, the spotlight body 20 is mounted on the bottom of the base 10, the cooling assembly 30 is installed inside the spotlight body 20, and the thermal expansion mechanism 40 is inserted into the spotlight body 20. The base 11 is mounted on the ceiling, the upper end of the turntable 12 is mounted on the bottom of the base 11, and the upper end of the connecting rod 13 is mounted on the bottom of the turntable 12. The lower end of the connecting rod 13 is inserted into the spotlight body 20, and the circuit board is installed inside the base 11. The LED lamp 22 is installed in the center of the housing 21 away from the end of the connecting rod 13. The reflective film 23 is attached to the inner wall of the housing 21. The light source fixing bracket 24 is installed at the upper end of the housing 21, the light-transmitting cover 25 is installed at the lower end of the housing 21, and the independent power supply is installed inside the housing 21. A light-transmitting cover 254 is mounted on the lower end of the housing 21. Multiple light-transmitting plates 254a are mounted on the upper surface of the light-transmitting cover 254. The light-transmitting cover 254 is fixedly mounted on the inner side of the lower end of the housing 21. A chip-blocking light-transmitting cover 252 is mounted in the dust removal trough 251. A tension spring 253 is mounted on the top of the chip-blocking light-transmitting cover 252. Multiple transparent conductive grids 255 are mounted on the upper surfaces of the multiple light-transmitting plates 254a. A cooling trough 242 is mounted on one side of the LED lamp trough 241. A fan 31 is mounted in the cooling trough 242. The drive motor 32 is mounted on the bottom wall of the cooling trough 242. Two storage boxes 44 are mounted on either side of the lower end of the telescopic rod 41. Two springs 47 are mounted on the end of the two brushes 46 close to the telescopic rod 41. The internal spring 47 is mounted in the storage section 461. Multiple retracting sections 462 are mounted on the end of the storage section 461 away from the end of the telescopic rod 41. The lower end of the push rod 413 is mounted between the two storage boxes 44.

[0053] Normally, the independent power supply charges the light. During a power outage, the independent power supply activates, providing power to the multiple transparent conductive grids 255, which are used to heat the multiple light-transmitting plates 254a accordingly. This increases the thickness of the multiple light-transmitting plates 254a according to a preset rule, forming a wedge-shaped light-transmitting cover 25, thereby changing the light emission direction of the LED spotlight. Simultaneously, the independent power supply provides power to heat the metal rod 411, which transfers heat to the bending memory alloy 412. The bending memory alloy 412 extends, and the push rod 413 follows the bending memory alloy 412 to push the light-transmitting cover 25 downward, forming a wedge-shaped light-transmitting cover 25. The brush 46 follows the telescopic rod 41 to clean the light-transmitting cover 25, cleaning it and making the light passing through it brighter. The brush 46 follows the bending memory alloy 412 downward until the push rod 413 pushes the chip-blocking light-transmitting cover 252 to flip open the dust removal chute 251, allowing dust to fall out of the chute 251. On the other hand, the independent power supply provides power to the driving motor 32 of the cooling assembly 30. The driving motor 32 rotates and drives the fan 31 to operate. On the one hand, it cools the memory alloy 412, so that the upward memory alloy 412 returns to its original shape. On the other hand, the blown air flow cooperates with the brush 46 to push the chip blocking light shield 252 to flip open the dust removal chute 251, so that the dust falls out of the dust removal chute 251. After the memory alloy 412 returns to its original shape, the heat is transferred to the bending memory alloy 412 through the metal rod 411. The bending memory alloy 412 extends downward to lift the light shield 25 and moves repeatedly. The brush 46 follows the movement of the telescopic rod 41 to repeatedly clean the light shield 25, so that the light shield 25 is clean and the light passing through the light shield 25 is brighter. In addition, the independent power supply also provides power to the LED lamp 22, so that the LED lamp 22 emits light and illuminates the surroundings. The light shield 25 forms a wedge-shaped light shield 25 under the action of the push rod 413 and the transparent conductive grid 255, so that the light is refracted over a larger range, such as Figure 1 becomes Figure 2 , so that the operators can continue to work.

[0054] Beneficial effects: When a power outage occurs, the independent power supply can provide power to the LED lamp 22, the cooling mechanism 30 and the thermal expansion mechanism 40 for a short time, so that the fan of the cooling component 30 cools the memory alloy 412 of the thermal expansion mechanism and the cooling spotlight body 20, thereby extending the service life of the LED spotlight, and enables the brush 26 of the thermal expansion mechanism 40 to follow the expansion rod 41 to repeatedly clean the light cover 25 of the spotlight body 20, making the light brighter. After the multiple transparent conductive grids 255 and the expansion rod 41 are energized, the entire light cover 25 can be thermally expanded to form a wedge-shaped light cover 25, thereby changing the light output direction of the LED spotlight, allowing personnel to continue working, and handling emergencies after a power outage.

[0055] For example, it's particularly important that one side of the LED spotlight is also equipped with a fluorescent panel. This panel is placed on the ground, and a desk is placed on one side of it. The LED spotlight is located on the side of the fluorescent panel facing away from the desk, and the LED spotlight emits light toward the bottom of the fluorescent panel. During a power outage, the light emitted by the LED spotlight refracts and bends upward, allowing the fluorescent panel to project and spread this light from the center, forming a surface light source across the entire panel, thereby illuminating one side of the desk. This helps companies provide low-light illumination for large areas during power outages, helping employees work.

[0056] For example, in another embodiment, the light-transmitting plate is a movable plate. Two adjacent light-transmitting plates 254a are hinged to each other, and the multiple light-transmitting plates 254a are also movably connected to multiple drive rods, which are respectively connected to multiple micro motors, and the multiple micro motors are electrically connected to the controller. The controller is electrically connected to the independent power supply. After long-term use and aging, when the thickness of the light-transmitting plate 254a does not change much when heated, for example, when it is disabled, the controller can control the rotation of the multiple light-transmitting plates 254a through multiple micro motors to adjust the angle to form a preset shape, thereby controlling the direction of the emitted light of the LED spotlight. In this process, the thermal expansion structure can be supported by the light-transmitting cover 254 and undergo adaptive deformation.

[0057] The specific embodiments described above further illustrate the purpose of the present invention, technical solutions, and beneficial effects. It should be understood that the above description is merely a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. In particular, it should be noted that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An LED spotlight, characterized by: The spotlight comprises a base, a spotlight body, a cooling assembly and a thermal expansion mechanism, the base is arranged on the ceiling, the spotlight body is installed at the bottom of the base, the cooling assembly is arranged inside the spotlight body, the thermal expansion mechanism is inserted inside the spotlight body, the cooling assembly and the thermal expansion mechanism are electrically connected to the spotlight body, the cooling assembly comprises a fan and a driving motor, the fan is installed in the cooling groove and is tilted relative to the central axis of the shell, and the fan faces the chip-blocking light shield, the driving motor is installed on the bottom wall of the cooling groove, and the driving motor is electrically connected to the transparent conductive grid, the fan is connected to the driving motor, and the driving motor is electrically connected to an independent power supply, the thermal expansion mechanism comprises a telescopic rod, two storage boxes, two brushes and two springs, the telescopic rod is tilted and fixed on the inner side wall of the upper end of the shell, the telescopic rod is tilted relative to the inner side wall of the shell, the two storage boxes are respectively arranged on both sides of the lower end of the telescopic rod, and one end of the storage box is passed through the end of the telescopic rod. The two brushes are respectively inserted into the sides of the two storage boxes away from each other, and the lower side of each brush is against the light-transmitting cover. The two springs are respectively arranged inside the ends of the two brushes close to the telescopic rod. Multiple transparent conductive grids are electrically connected to the top of the telescopic rod through wires and are electrically connected to an independent power supply. The surface of the telescopic rod is coated with a reflective film layer. The telescopic rod includes a metal rod, a bending memory alloy and a push rod connected in sequence. The metal rod is fixedly connected to the inner wall of the upper end of the shell and is electrically connected to the transparent conductive grid. The multiple transparent conductive grids can heat the telescopic rod so that the bending memory alloy extends obliquely downward, thereby pushing the two brushes to move relative to the upper surface of the light-transmitting cover until the push rod pushes the chip-blocking light-transmitting cover to flip open the dust removal slot, and cooperate with the airflow of the fan to make the dust fall out of the dust removal slot. The fan can cool the telescopic rod so that the telescopic rod cools down and moves in the opposite direction, thereby restoring its original state.

2. The LED spotlight according to claim 1, characterized in that: The base includes a base, a turntable, a connecting rod and a circuit board. The base is installed on the ceiling, the upper end of the turntable is installed on the bottom of the base, and the upper end of the connecting rod is installed on the bottom of the turntable. The lower end of the connecting rod is inserted into the spotlight body, and the circuit board is set inside the base.

3. The LED spotlight according to claim 2, characterized in that: The spotlight body includes a shell, an LED lamp, a reflective film, a light source fixing socket, a light cover and an independent power supply. The shell is tilted and located below the turntable. The shell is connected to the lower end of the connecting rod. The LED lamp is arranged at the center position of the shell away from one end of the connecting rod. The reflective film is attached to the inner wall of the shell. The light source fixing socket is installed at the upper end of the shell. The light cover is installed at the lower end of the shell, and the edge of the light cover abuts the lower end edge of the shell. The LED lamp is electrically connected to the circuit board. The independent power supply is arranged inside the shell and electrically connected to the LED lamp.

4. The LED spotlight according to claim 3, characterized in that: The light-transmitting cover includes a light-transmitting cover body, a chip-blocking light-transmitting cover, a tension spring and multiple transparent conductive grids. The light-transmitting cover body is fixedly installed on the inner side of the lower end of the shell, and the light-transmitting cover body includes multiple light-transmitting plates connected to each other and deformable by heat. Multiple light-transmitting plates are arranged on the upper surface of the light-transmitting cover body, and a circular dust removal groove is opened in the edge area adjacent to the light-transmitting cover body. The dust removal groove runs through the upper and lower surfaces of the light-transmitting cover body. The chip-blocking light-transmitting cover is arranged in the dust removal groove, and the end of the chip-blocking light-transmitting cover away from the central axis of the shell is hinged to the side wall edge of the dust removal groove. The tension spring is arranged at the top of the chip-blocking light-transmitting cover, and one end of the tension spring is connected to the shell, and the other end is connected to the top of the chip-blocking light-transmitting cover, so that the chip-blocking light-transmitting cover is enclosed in the dust removal groove. Multiple transparent conductive grids are embedded in the upper surfaces of multiple light-transmitting plates and are all connected to independent power supplies.

5. The LED spotlight according to claim 4, characterized in that: An LED lamp slot is provided in the center of the light source fixing base, and the LED lamp is inserted into the light source fixing base. A cooling slot is also provided on the light source fixing base. The cooling slot is provided on one side of the LED lamp slot, and the cooling slot is tilted toward the chip blocking light shield.

6. The LED spotlight according to claim 5, characterized in that: Each brush includes a storage section and multiple contraction sections connected in sequence. A storage groove is provided inside the storage box, and the storage groove runs through the bottom of the storage box. The storage section is inserted into the storage groove of the corresponding storage box and is connected to the end of the corresponding spring. The spring is installed in the storage section. The multiple contraction sections are arranged at the end of the storage section away from the end of the telescopic rod, and the end of the storage section abuts the edge of the reflective film. The lower end of the storage section is lower than the bottom of the storage box. The brush gradually narrows toward the end of the edge of the reflective film, so that when the brush cleans the translucent cover downward, the contraction section of the brush can freely retract and retract in the storage section. An annular guide groove is formed on the inner circumferential surface of the lower end of the shell, and a movable sphere is formed on the end of the brush, which is slidably clamped in the annular guide groove.

7. The LED spotlight according to claim 6, characterized in that: The bending memory alloy is located inside the shell, and the lower end of the push rod is installed between the two storage boxes. The distance between the push rod and the central axis of the shell gradually decreases in the downward direction, and a thermal pad is formed at the end of the push rod. The thermal pad slides on the light-transmitting cover. Multiple transparent conductive grids are used to heat multiple light-transmitting plates accordingly, so that the thickness of the multiple light-transmitting plates increases according to preset rules, so that the entire light-transmitting cover forms a wedge-shaped light-transmitting cover, thereby changing the light output direction of the LED spotlight.

8. The LED spotlight according to claim 7, characterized in that: A sliding groove is provided inside the push rod, which runs through the left and right sides of the push rod. One end of each storage box is inserted into the sliding groove. The width above the sliding groove is greater than the width below the groove, so that when the push rod is pushed down to block the chips and the light cover is flipped down, the brush can be lifted up by the light cover and move relative to the push rod, thereby exposing the thermal pad of the push rod, so that the thermal pad can move down into the dust removal trough.

Images