An LED light source device with high luminous efficiency
By using a conical bucket-shaped heat dissipation base, lens mechanism and circulating heat dissipation system in the LED light source, the problems of reduced luminous efficiency and shortened service life caused by the increase in the LED chip temperature are solved, and an efficient, stable and beautiful LED light source is achieved.
Patent Information
- Application Number
- CN202411173427.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2044-08-26
AI Technical Summary
In the fields of stage lighting, film and television shooting, high-end commercial lighting, etc., the luminous efficiency, color reduction and stability of LED light sources are demanded, but the accumulation of heat during the energy conversion process leads to an increase in the temperature of the LED chip, reducing the luminous efficiency and shortening the service life.
A heat dissipation base is arranged in a conical bucket shape. By connecting multiple LED chips in parallel to the heat dissipation base, and adjusting the angle and focus position of light with a lens mechanism, combining a spiral-winding heat dissipation tube and a radiator for circulating heat dissipation, effectively dissipating the heat generated by the LED chip.
It improves the luminous efficiency of LED light sources, reduces the temperature of LED chips, extends the service life of LEDs, and improves color stability, meeting the high-efficiency, stability and aesthetic needs of high-end lighting fields.
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Figure CN118793989B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of lighting, and particularly to an LED light source device with high luminous efficiency. Background Art
[0002] With the continuous development of technology, lighting technology is also constantly progressing. Among many lighting devices, light-emitting diodes (LEDs) have many advantages such as high efficiency, energy saving, environmental protection, and long lifespan, far exceeding traditional light sources. An LED is a semiconductor device that emits light in the form of photons by releasing energy through the recombination of electrons and holes.
[0003] Although LED light sources already have relatively high luminous efficiency, in some specific application scenarios, it is still necessary to further improve their luminous efficiency to meet higher lighting requirements. In the fields of stage lighting, film and television shooting, high-end commercial lighting, etc., there are extremely high requirements for aspects such as the luminous efficiency, color rendering, and stability of light sources. Due to the losses in its energy conversion process and the characteristics of semiconductor materials, certain heat will be generated. If this heat cannot be dissipated in time, it will cause the temperature of the LED chip to rise. When the temperature of the LED chip rises, the internal quantum efficiency of the LED will decrease, resulting in a weakened luminous intensity, and thus reducing the luminous efficiency of the LED. Moreover, the increase in temperature will also accelerate the aging of the LED chip, causing its performance to gradually decline, thereby shortening the lifespan of the LED and even leading to failure. In addition, too high a temperature may also affect the color stability of the LED, resulting in color deviation.
[0004] Therefore, how to improve the luminous efficiency of the LED light source while solving the heat dissipation problem of the LED light source is an urgent problem that needs to be solved by those skilled in the art. Summary of the Invention
[0005] In order to improve the luminous efficiency of the LED light source while solving the heat dissipation problem of the LED light source, the present application provides an LED light source device with high luminous efficiency.
[0006] The LED light source device with high luminous efficiency provided by the present application adopts the following technical solutions:
[0007] An LED light source device with high luminous efficiency includes a heat dissipation base, which is arranged in a conical hopper shape. Inside the heat dissipation base, a plurality of LED chips are fixedly and thermally connected in central symmetry. The LED chips are all obliquely arranged. At the bottom of the heat dissipation base corresponding to the LED chips, electrode tubes are fixedly connected. Inside the electrode tubes, electrode columns are fixedly and insulatedly connected. All the LED chips are connected in parallel to the electrode tubes and the electrode columns. At the top of the heat dissipation base corresponding to the LED chips, a lens mechanism is provided. On the side surface of the heat dissipation base corresponding to the LED chips, a heat dissipation mechanism is provided.
[0008] By adopting the above technical solution, the light emitted by the plurality of LED chips can be emitted in an interleaved manner by using the heat dissipation base arranged in a conical hopper shape, thereby effectively reducing the influence of light blocking under the lamp. The light emitted by the LED chips will pass through the lens mechanism, and the lens mechanism can adjust the angle of the light and the position of the focus, further improving the luminous efficiency of the LED light source. At the same time, the heat dissipation mechanism can timely and effectively dissipate the heat generated by the chip during operation, effectively avoiding the increase in the temperature of the LED chip. Therefore, the high luminous efficiency of the LED light source can be ensured. This application solves the heat dissipation problem of the LED light source while improving the luminous efficiency of the LED light source, effectively ensuring the luminous efficiency, service life and stability of the LED.
[0009] Furthermore, at the top of the electrode tube corresponding to the LED chips, a first wire is fixedly connected. At the top of the electrode column corresponding to the LED chips, a second wire is fixedly connected. At the bottom of the electrode tube, a first electrode plate is fixedly connected. At the bottom of the electrode column, a second electrode plate is fixedly connected. The first electrode plate and the second electrode plate are electrically connected to a power supply.
[0010] By adopting the above technical solution, the first wire and the second wire can be used to conveniently form an electrical connection between the first electrode plate, the second electrode plate and the LED chips, and then connect the power supply to the LED chips to ensure that the LED chips can work stably and reliably.
[0011] Furthermore, the lens mechanism includes a first lens, which is fixedly and hermetically connected to the opening at the top of the heat dissipation base. On the top surface of the heat dissipation base, a sliding sleeve is fixedly and hermetically connected. Inside the sliding sleeve, a second lens is hermetically and slidably connected. On the top surface of the sliding sleeve, a third lens is fixedly and hermetically connected. The outside of the heat dissipation base, the sliding sleeve and the third lens is hermetically and fixedly filled with a columnar transparent body. A reflective layer is provided on the inner side surface of the heat dissipation base.
[0012] By adopting the above technical solution, the reflective layer can timely and effectively reflect the light emitted by the LED chip onto the first lens. The light passes through the first lens and then is emitted outward through the second lens and the transparent body. The position of the focus of the emitted light can be adjusted by moving the second lens. The transparent body can effectively position and protect the lens mechanism, thereby ensuring the stability and reliability of the lens mechanism during operation.
[0013] Furthermore, the first lens has a first plane, a second plane is provided on the side of the first lens facing away from the first plane, a light diffuser is fixedly connected to the second plane, a first convex curved surface is provided between the edge of the second plane and the outer side surface of the first lens, the second lens is configured as a plano-convex lens, and the third lens is configured as a plane mirror.
[0014] By adopting the above technical solution, the light homogenizer on the first lens can not only make the light pass through the first lens evenly on the second plane, but also block the external line of sight from reaching the position of the LED chip, thereby improving the overall aesthetics of the LED light source, and the convex first curved surface can collimate the oblique light emitted by the LED chip through refraction, so that the light can be irradiated on the second lens in parallel, and the second lens is configured as a plano-convex lens to focus the light, and the third lens is set as a plane mirror to ensure the sealing when filling the transparent body.
[0015] Furthermore, the heat dissipation mechanism includes a heat dissipation pipe, which is spirally wound on the heat dissipation base, and both ends of the heat dissipation pipe extend downward to the bottom of the heat dissipation base, one end of the heat dissipation pipe is fixedly and sealedly connected to a heat exchange pipe, one end of the heat exchange pipe away from the heat dissipation pipe is sealed and fixedly connected to a radiator, the other end of the heat dissipation pipe is sealed and fixedly connected to the radiator, and the top surface of the radiator is fixedly connected to the bottom surface of the heat dissipation base.
[0016] By adopting the above technical solution, the heat sink, the heat exchange tube and the heat dissipation tube can be used to circulate the heat dissipation of the heat dissipation base, so that the heat generated by the LED chip during operation can be dissipated more quickly through the heat dissipation base, effectively ensuring the operating temperature of the LED chip, and then ensuring the luminous efficiency and service life of the LED chip.
[0017] Furthermore, the heat dissipation tube is configured as a copper tube, the heat dissipation base is made of copper-iron alloy material, the two ends of the heat dissipation tube are electrically connected to a controller, the controller is electrically connected to a power supply, the outer side of the second lens is sealed and fixedly connected to a magnetic seat, the heat dissipation tube is coaxially arranged with the magnetic seat, the magnetic seat is sealed and slidably connected to the sleeve, and a vacuum layer is arranged between the second lens and the third lens.
[0018] By adopting the above technical solution, the heat dissipation tube wound in a spiral shape is equivalent to the coil of the electromagnet after being electrically connected to the power supply through the controller, and the heat dissipation base made of copper-iron alloy material is equivalent to the iron core of the electromagnet. After the controller allows an appropriate current to flow through the heat dissipation tube, a corresponding magnetic force will be generated, thereby generating a corresponding suction force on the magnetic seat, and the magnetic seat will drive the second lens to move. When the magnetic force is reduced, the vacuum layer set between the second lens and the third lens will automatically drive the second lens to reset and move. In this way, the focal length can be adjusted by controlling the current passing through the heat dissipation tube through the controller.
[0019] Furthermore, the magnetic seat is made of nano-particle material, and the nano-particle material is made by mixing nano-scale magnetic metal particles and insulating materials. The nano-scale magnetic metal particles are configured as iron-cobalt alloy, and the insulating material is configured as aluminum fluoride.
[0020] By adopting the above technical solution, the magnetic seat made of a mixture of nano-scale iron-cobalt alloy and insulating material aluminum fluoride can simultaneously exert the two characteristics of strong magnetism of iron-cobalt alloy and light transmittance of aluminum fluoride. The magnetic seat has high light transmittance to avoid blocking light, and the strong magnetism can ensure the stability and reliability of the electromagnet's suction force on the magnetic seat.
[0021] Furthermore, the radiator includes a heat dissipation container, the interior of the heat dissipation container is sealed and filled with a heat dissipation medium, the interior of the heat dissipation container is rotatably connected to a drive shaft, the outer side of the drive shaft is fixedly connected to a pump blade, the position of the heat dissipation container below the pump blade is sealed to the heat exchange tube, the position of the heat dissipation container above the pump blade is sealed to the heat dissipation tube, and the drive shaft passes through the lower end of the heat dissipation container and is transmission-connected to a drive motor.
[0022] By adopting the above technical solution, the driving motor can be used to drive the driving shaft to rotate, and the driving shaft will drive the pump blades to rotate at the same time. During the rotation, the pump blades will drive the heat dissipation medium filled in the internal sealing of the heat dissipation container to circulate continuously between the heat dissipation pipe and the heat exchange pipe, so that the heat dissipation medium can more efficiently take away the heat generated by the LED chip during operation.
[0023] Furthermore, a plurality of heat dissipation grooves evenly distributed in an annular shape are provided on the outer side of the heat dissipation container, and the heat exchange tubes are spirally coiled and arranged in the heat dissipation grooves.
[0024] By adopting the above technical solution, the heat dissipation groove opened on the outside of the heat dissipation container can directly dissipate heat to the external air, and the heat exchange tube is spirally coiled in the heat dissipation groove to further increase the heat exchange effect between the heat exchange tube and the heat dissipation groove.
[0025] Furthermore, a fan blade is fixedly connected to a position on the drive shaft between the heat dissipation container and the drive motor, an air guide cover is fixedly installed on the outside of the drive motor corresponding to the fan blade, the opening on the top of the air guide cover corresponds to the heat dissipation groove, and an air inlet hole is opened at the bottom of the air guide cover.
[0026] By adopting the above technical solution, the driving shaft can be used to drive the fan blades to rotate. During the rotation process, the fan blades will bring the air outside the air inlet into the air guide cover, and quickly push the air inside the air guide cover into the heat dissipation groove. When the air flows through the heat dissipation groove, it will more quickly and effectively take away the heat on the heat exchange tube and the heat dissipation groove, further improving the heat dissipation effect.
[0027] Beneficial effects achieved:
[0028] The present application utilizes the heat dissipation base arranged in a conical bucket shape to make the light emitted by the multiple LED chips emit in an interlaced manner, thereby effectively reducing the influence of the dark under the lamp. The light emitted by the LED chip will pass through the lens mechanism, and the lens mechanism can adjust the angle of the light and the position of the focus, further improving the luminous efficiency of the LED light source. At the same time, the heat dissipation mechanism can timely and effectively dissipate the heat generated by the chip during operation, effectively avoiding the temperature increase of the LED chip, thereby ensuring the high luminous efficiency of the LED light source, and solving the heat dissipation problem of the LED light source while improving the luminous efficiency of the LED light source, effectively ensuring the luminous efficiency and service life of the LED and the stability of the LED. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic cross-sectional view of the three-dimensional structure of an embodiment of the present application.
[0030] Figure 2 It is a schematic diagram of the structural decomposition of an embodiment of the present application.
[0031] Figure 3 It is a schematic diagram of the installation structure of the LED chip in one embodiment of the present application.
[0032] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the present application.
[0033] Figure 5 is Figure 4 an enlarged schematic diagram of the structure of Part Ⅰ in
[0034] Figure 6 It is an exploded schematic diagram of the heat dissipation mechanism in an embodiment of the present application.
[0035] Figure 7 It is an exploded schematic diagram of the radiator in an embodiment of the present application.
[0036] Explanation of reference numerals: 100, heat dissipation base; 101, LED chip; 102, electrode tube; 103, electrode column; 104, first wire; 105, second wire; 106, first electrode plate; 107, second electrode plate; 200, lens mechanism; 201, first lens; 2011, first plane; 2012, second plane; 2013, light homogenizing plate; 2014, first curved surface; 202, sliding sleeve; 203, second lens; 204, third lens; 205, transparent body; 206, reflective layer; 207, magnetic seat; 300, heat dissipation mechanism; 301, heat dissipation tube; 302, heat exchange tube; 303, radiator; 3031, heat dissipation container; 3032, drive shaft; 3033, pump impeller; 3034, drive motor; 3035, heat dissipation groove; 3036, fan blade; 3037, air guide cover; 3038, air inlet hole; 3039, mounting bracket; 3040, mounting hole. Detailed implementation manners
[0037] The following further elaborates on the present application in conjunction with the attached Figures 1-7 drawings.
[0038] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0039] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0040] The embodiment of the present application discloses an LED light source device with high luminous efficiency.
[0041] As Figure 1 and Figure 2 As shown in the figure, in an embodiment of the present application, an LED light source device with high luminous efficiency includes a heat dissipation base 100. The heat dissipation base 100 is arranged in a conical hopper shape. Three centrally symmetric LED chips 101 are fixedly bonded to the inner side surface of the heat dissipation base 100 by thermal conductive silicone. A phosphor layer is coated on the surface of the LED chip 101. The phosphor layer is composed of a mixture of phosphors with multiple different wavelengths. The LED chips 101 are all obliquely arranged. The heat dissipation base 100 arranged in a conical hopper shape can make the light emitted by multiple LED chips 101 intersect and emit, thereby effectively reducing the influence of light-dark under the lamp. And using three LED chips 101 can also effectively increase the luminous efficiency of the LED light source.
[0042] It can be understood that in other embodiments of the present application, the specific number of the LED chips 101 can be specifically set according to design requirements, and can be set to three, five, nine, etc., so as to ensure that the illumination brightness requirements of specific application scenarios can be met.
[0043] As Figure 2 and Figure 3 As shown in the figure, in an embodiment of the present application, an electrode tube 102 is fixedly connected to the bottom of the heat dissipation base 100 corresponding to the LED chip 101. An electrode column 103 is fixedly and insulatedly connected inside the electrode tube 102. The electrode tube 102 and the electrode column 103 are both made of materials with good electrical conductivity and thermal conductivity, such as copper, aluminum and other materials. All the LED chips 101 are connected to the electrode tube 102 and the electrode column 103 in a parallel connection manner. A lens mechanism 200 is provided at the top of the heat dissipation base 100 corresponding to the LED chip 101. The light emitted by the LED chip 101 will pass through the lens mechanism 200. The lens mechanism 200 can adjust the angle of the light and the position of the focus, further improving the luminous efficiency of the LED light source.
[0044] As Figure 1 and Figure 2As shown, in an embodiment of the present application, a heat dissipation mechanism 300 is provided on the side of the heat dissipation base 100 corresponding to the LED chip 101. The heat dissipation mechanism 300 can timely and effectively dissipate the heat generated by the LED chip 101 during operation, effectively avoiding the increase in the temperature of the LED chip 101. Therefore, the high luminous efficiency of the LED light source can be guaranteed. The present application not only improves the luminous efficiency of the LED light source but also solves the heat dissipation problem of the LED light source, effectively ensuring the luminous efficiency, service life, and stability of the LED.
[0045] As Figure 3 shown, in an embodiment of the present application, a plurality of first wires 104 symmetrically arranged at the center are fixedly welded to the top of the electrode tube 102 corresponding to the LED chip 101. A plurality of second wires 105 symmetrically arranged at the center are fixedly welded to the top of the electrode post 103 corresponding to the LED chip 101. The bottom of the electrode tube 102 is fixedly connected to a first electrode plate 106, and the bottom of the electrode post 103 is fixedly connected to a second electrode plate 107. The first electrode plate 106 and the second electrode plate 107 are electrically connected to a power supply. The first wires 104 and the second wires 105 can conveniently form an electrical connection between the first electrode plate 106, the second electrode plate 107, and the LED chip 101, thereby connecting the power supply to the LED chip 101 to ensure the stable and reliable operation of the LED chip 101.
[0046] As Figure 2 and Figure 4 shown, in an embodiment of the present application, the lens mechanism 200 includes a first lens 201. The first lens 201 is fixedly and hermetically connected to the opening at the top of the heat dissipation base 100. A sliding sleeve 202 is fixedly and hermetically connected to the top surface of the heat dissipation base 100. A second lens 203 is hermetically slidably connected inside the sliding sleeve 202. The second lens 203 is configured as a plano-convex lens. A third lens 204 is fixedly and hermetically connected to the top surface of the sliding sleeve 202. The third lens 204 is provided as a plane mirror. A columnar transparent body 205 is hermetically filled and fixed outside the heat dissipation base 100, the sliding sleeve 202, and the third lens 204. A reflective layer 206 is provided on the inner side surface of the heat dissipation base 100. The reflective layer 206 can timely and effectively reflect the light emitted by the LED chip 101 onto the first lens 201. The light passing through the first lens 201 will emit outward through the second lens 203 and the transparent body 205. By moving the second lens 203, the position of the focus of the emitted light can be adjusted. The transparent body 205 can effectively position and protect the lens mechanism 200, ensuring the stability and reliability of the lens mechanism 200 during operation.
[0047] In a specific embodiment of the present application, the reflective layer 206 is configured as a titanium dioxide coating. Titanium dioxide has a high reflectivity and can efficiently reflect a large amount of light back, greatly improving the light efficiency of the lamp. Whether in professional places such as stages and studios with extremely high brightness requirements, or in ordinary indoor and outdoor lighting environments, it can play an important role. At the same time, its good scattering performance makes the light evenly distributed, can reduce the difference between light and dark in the lighting, create a more comfortable visual experience, and make the light of the entire lighting space soft and uniform. It has a high refractive index and reflectivity, and has good chemical stability and weather resistance. The chemical properties of titanium dioxide are highly stable and not easy to react with other substances. This ensures that during long-term use, the light reflective layer can always maintain stable reflective performance, greatly extending the service life of the lamp, and reducing the trouble and cost of frequently replacing the lamp due to the decline in the performance of the reflective layer. In addition, titanium dioxide is non-toxic and tasteless, has no harm to the human body and the environment, and fully meets the strict requirements of modern society for environmental protection. Whether in public institutions such as hospitals and schools that are sensitive to environmental quality, or in home environments that focus on health and environmental protection, using lamps with titanium dioxide as the reflective layer can give people peace of mind.
[0048] like Figure 4 and Figure 5 As shown, in one embodiment of the present application, the first lens 201 has a first plane 2011, and a second plane 2012 is provided on the side of the first lens 201 away from the first plane, and a light homogenizing plate 2013 is fixedly connected to the second plane 2012. The light homogenizing plate 2013 on the first lens 201 can not only enable the light to pass through the first lens 201 evenly on the second plane 2012, but also block the external line of sight from directly reaching the position of the LED chip 101, thereby improving the overall aesthetics of the LED light source. A convex first curved surface 2014 is provided between the edge of the second plane 2012 and the outer side surface of the first lens 201, and the convex first curved surface 2014 can collimate the oblique light emitted by the LED chip 101 through refraction, so that the light can be irradiated on the second lens 203 in parallel. The second lens 203 is configured as a plano-convex lens to focus the light, and the third lens 204 is configured as a plane mirror to ensure the sealing when filling the transparent body 205.
[0049] In an embodiment of the present application, the light homogenizing plate 2013 is made of a diffusing material, such as plastic materials like polycarbonate (PC), polystyrene (PS), polymethyl methacrylate (PMMA), etc. Of course, in other embodiments, glass, silica gel, etc. can also be used. These materials have good optical properties and processability and can be made into light homogenizing plates of various shapes and sizes through processes such as injection molding, extrusion, calendering, etc. The surface of the light homogenizing plate is coated with a diffusing coating and an anti-reflection coating, and the diffusing coating and the anti-reflection coating can optimize the light transmittance and scattering angle, further improving the optical characteristics of the first lens 201.
[0050] Such as Figure 4 and Figure 6 As shown, in an embodiment of the present application, the heat dissipation mechanism 300 includes a heat dissipation pipe 301. The heat dissipation pipe 301 is spirally wound around the heat dissipation base 100. Both ends of the heat dissipation pipe 301 extend downward to the bottom of the heat dissipation base 100. One end of the heat dissipation pipe 301 is fixedly and sealedly connected to a heat exchange pipe 302. The end of the heat exchange pipe 302 away from the heat dissipation pipe 301 is fixedly and sealedly connected to a radiator 303. The other end of the heat dissipation pipe 301 is fixedly and sealedly connected to the radiator 303. The top surface of the radiator 303 is fixedly connected to the bottom surface of the heat dissipation base 100. The radiator 303, the heat exchange pipe 302, and the heat dissipation pipe 301 can be used to circulate heat dissipate the heat dissipation base 100, so that the heat generated by the LED chip 101 during operation can be more quickly dissipated through the heat dissipation base 100, effectively ensuring the operating temperature of the LED chip 101, and thus ensuring the luminous efficiency and service life of the LED chip 101.
[0051] In an embodiment of the present application, the heat dissipation tube 301 is configured as a copper tube, and the heat dissipation base 100 is made of a copper-iron alloy material. The copper-iron alloy combines the high thermal conductivity of copper and the good magnetic permeability of iron. Copper has a very high thermal conductivity and is an excellent heat-conducting material. After alloying copper with iron, the thermal conductivity of the iron core can be improved to a certain extent while maintaining good magnetic permeability. The thermal conductivity of this alloy material is usually higher than that of pure iron and silicon steel, and it can also dissipate heat more effectively. Both ends of the heat dissipation tube 301 are electrically connected to a controller, and the controller is electrically connected to a power supply. A magnetic seat 207 is hermetically and fixedly connected to the outside of the second lens 203. The heat dissipation tube 301 is coaxially arranged with the magnetic seat 207, and the magnetic seat 207 is hermetically and slidably connected to the sliding sleeve 202. A vacuum layer is provided between the second lens 203 and the third lens 204. The heat dissipation tube 301 arranged in a spiral shape is equivalent to the coil of an electromagnet after being electrically connected to the power supply through the controller, and the heat dissipation base 100 made of a copper-iron alloy material is equivalent to the iron core of the electromagnet. After passing an appropriate current through the heat dissipation tube 301 through the controller, a corresponding magnetic force will be generated, and then a corresponding suction force will be generated on the magnetic seat 207. The magnetic seat 207 will drive the second lens 203 to move. When the magnetic force decreases, the vacuum layer provided between the second lens 203 and the third lens 204 will automatically drive the second lens 203 to move back to its original position. In this way, by controlling the magnitude of the current passing through the heat dissipation tube 301 through the controller, the adjustment of the focal length can be achieved.
[0052] In a specific embodiment of the present application, the magnetic seat 207 is made of a nano-particle material. The nano-particle material is made by mixing nano-scale magnetic metal particles and insulating substances. The nano-scale magnetic metal particles are configured as an iron-cobalt alloy, and the insulating substance is configured as aluminum fluoride. The magnetic seat 207 made of a mixture of nano-scale iron-cobalt alloy and the insulating substance aluminum fluoride can simultaneously exhibit the two characteristics of the strong magnetism of the iron-cobalt alloy and the light transmittance of aluminum fluoride. The magnetic seat 207 has a high light transmittance, which can avoid blocking light, and the strong magnetism can ensure the stability and reliability of the suction force generated by the electromagnet on the magnetic seat 207.
[0053] It can be understood that in other embodiments of the present application, the magnetic seat 207 can also be made of other materials that are both transparent and attracted by magnetic force, such as transparent ferrite magnets. Transparent ferrite magnets are prepared by mixing iron oxides and other compounds in a certain proportion using an oxide ceramic process. It can be processed into a transparent or semi-transparent state, and at the same time has a certain magnetism and can be attracted by magnetic force. At the same time, some special transparent plastic materials can also have certain magnetism and transparency after adding magnetic substances. Materials such as PVC or PEVA added with magnetic substances.
[0054] Such as Figure 4 and Figure 7As shown, in an embodiment of the present application, the radiator 303 includes a heat dissipation container 3031. The interior of the heat dissipation container 3031 is hermetically filled with a heat dissipation medium. A drive shaft 3032 is hermetically and rotatably connected to the interior of the heat dissipation container 3031. A pump impeller 3033 is fixedly connected to the outer side of the drive shaft 3032. The position of the heat dissipation container 3031 below the pump impeller 3033 is hermetically connected to the heat exchange tube 302, and the position of the heat dissipation container 3031 above the pump impeller 3033 is hermetically connected to the heat dissipation tube 301. The drive shaft 3032 penetrates through the lower end of the heat dissipation container 3031 and is drivingly connected to a drive motor 3034. The drive motor 3034 can drive the drive shaft 3032 to rotate. When the drive shaft 3032 rotates, it will drive the pump impeller 3033 to rotate. During the rotation of the pump impeller 3033, it will drive the heat dissipation medium hermetically filled in the heat dissipation container 3031 to continuously circulate between the heat dissipation tube 301 and the heat exchange tube 302, so that the heat dissipation medium can more efficiently take away the heat generated by the LED chip 101 during operation.
[0055] In a specific embodiment of the present application, the heat dissipation medium is configured as mineral oil. Mineral oil has good insulation performance and stability, can effectively transfer heat, and is not easy to volatilize, not easy to burn, and has high safety.
[0056] It can be understood that in other specific embodiments of the present application, the heat dissipation medium can also be configured as a fluorinated liquid. The fluorinated liquid is a liquid with stable chemical properties and excellent insulation performance. It has a very high specific heat capacity and thermal conductivity, and can transfer heat quickly and effectively. The fluorinated liquid is non-conductive, non-combustible, and has extremely high safety.
[0057] As Figure 4 and Figure 7 As shown, in an embodiment of the present application, a number of annularly and uniformly distributed heat dissipation grooves 3035 are provided on the outer side of the heat dissipation container 3031. The heat exchange tube 302 is spirally wound and arranged in the heat dissipation grooves 3035. The heat dissipation grooves 3035 provided on the outer side of the heat dissipation container 3031 can directly dissipate heat to the external air, and the heat exchange tube 302 being spirally wound and arranged in the heat dissipation grooves 3035 can further increase the heat exchange effect between the heat exchange tube 302 and the heat dissipation grooves 3035.
[0058] As Figure 4 and Figure 7As shown, in one embodiment of the present application, a fan blade 3036 is fixedly connected to the position between the heat dissipation container 3031 and the driving motor 3034 on the driving shaft 3032, and a wind guide cover 3037 is fixedly installed on the outer side of the driving motor 3034 corresponding to the fan blade 3036. The opening at the top of the wind guide cover 3037 corresponds to the heat dissipation slot 3035, and an air inlet hole 3038 is opened at the bottom of the wind guide cover 3037. When the driving shaft 3032 rotates, it can drive the fan blade 3036 to rotate. During the rotation process, the fan blade 3036 will bring the air outside the air inlet hole 3038 into the wind guide cover 3037, and quickly push the air inside the wind guide cover 3037 into the heat dissipation slot 3035. When the air flows through the heat dissipation slot 3035, it will more quickly and effectively take away the heat on the heat exchange tube 302 and the heat dissipation slot 3035, further improving the heat dissipation effect.
[0059] like Figure 1 and Figure 7 As shown, in one embodiment of the present application, a mounting bracket 3039 is fixedly connected to the bottom of the air guide cover 3037. The mounting bracket 3039 is centrally symmetrically arranged and bent downward. A mounting hole 3040 is provided on the mounting bracket 3039. During operation, the mounting bracket 3039 can be conveniently and quickly fixedly installed by using screws to pass through the mounting holes 3040 shown.
[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An LED light source device with high luminous efficiency, characterized in that: The invention comprises a heat dissipation base (100), the heat dissipation base (100) is arranged in a conical bucket shape, a plurality of LED chips (101) are fixedly connected to the heat dissipation base (100) in a centrally symmetrical manner, the LED chips (101) are all arranged obliquely, an electrode tube (102) is fixedly connected to the bottom of the heat dissipation base (100) corresponding to the LED chips (101), an electrode column (103) is fixedly connected to the inside of the electrode tube (102) in an insulated manner, all the LED chips (101) are connected in parallel to the electrode tube (102) and the electrode column (103), a lens mechanism (200) is provided at the top of the heat dissipation base (100) corresponding to the LED chips (101), and a heat dissipation mechanism (300) is provided at the side of the heat dissipation base (100) corresponding to the LED chips (101); The lens mechanism (200) comprises a first lens (201), the first lens (201) being fixedly and sealedly connected to an opening at the top of the heat dissipation base (100), the top surface of the heat dissipation base (100) being fixedly and sealedly connected to a sliding sleeve (202), the interior of the sliding sleeve (202) being sealed and slidably connected to a second lens (203), the top surface of the sliding sleeve (202) being fixedly and sealedly connected to a third lens (204), the outer sides of the heat dissipation base (100), the sliding sleeve (202) and the third lens (204) being sealed and fixedly filled with a columnar transparent body (205), and the inner side surface of the heat dissipation base (100) being provided with a reflective layer (206); The heat dissipation mechanism (300) comprises a heat dissipation pipe (301), the heat dissipation pipe (301) is spirally wound and arranged on the heat dissipation base (100), both ends of the heat dissipation pipe (301) extend downward to the bottom of the heat dissipation base (100), one end of the heat dissipation pipe (301) is fixedly and sealedly connected to a heat exchange pipe (302), one end of the heat exchange pipe (302) away from the heat dissipation pipe (301) is sealedly and fixedly connected to a radiator (303), the other end of the heat dissipation pipe (301) is sealedly and fixedly connected to the radiator (303), and the top surface of the radiator (303) is fixedly connected to the bottom surface of the heat dissipation base (100); The heat dissipation pipe (301) is configured as a copper pipe, the heat dissipation base (100) is made of a copper-iron alloy material, the two ends of the heat dissipation pipe (301) are electrically connected to a controller, the controller is electrically connected to a power supply, the outer side of the second lens (203) is sealed and fixedly connected to a magnetic seat (207), the heat dissipation pipe (301) and the magnetic seat (207) are coaxially arranged, the magnetic seat (207) and the sliding sleeve (202) are sealed and slidably connected, and a vacuum layer is arranged between the second lens (203) and the third lens (204); The magnetic seat (207) is made of nano-particle material, wherein the nano-particle material is made by mixing nano-scale magnetic metal particles and insulating material, wherein the nano-scale magnetic metal particles are configured as an iron-cobalt alloy, and the insulating material is configured as aluminum fluoride.
2. The LED light source device with high luminous efficiency according to claim 1, characterized in that: The top of the electrode tube (102) is fixedly connected to a first wire (104) corresponding to the LED chip (101), the top of the electrode column (103) is fixedly connected to a second wire (105) corresponding to the LED chip (101), the bottom of the electrode tube (102) is fixedly connected to a first electrode plate (106), the bottom of the electrode column (103) is fixedly connected to a second electrode plate (107), and the first electrode plate (106) and the second electrode plate (107) are electrically connected to a power source.
3. The LED light source device with high luminous efficiency according to claim 1, characterized in that: The first lens (201) has a first plane (2011); a second plane (2012) is provided on a side of the first lens (201) facing away from the first plane; a light diffuser (2013) is fixedly connected to the second plane (2012); a first convex curved surface (2014) is provided between an edge of the second plane (2012) and an outer side surface of the first lens (201); the second lens (203) is configured as a plano-convex lens; and the third lens (204) is configured as a plane mirror.
4. The LED light source device with high luminous efficiency according to claim 1, characterized in that: The radiator (303) comprises a heat dissipation container (3031), the interior of the heat dissipation container (3031) is sealed and filled with a heat dissipation medium, the interior of the heat dissipation container (3031) is sealed and rotatably connected to a drive shaft (3032), the outer side surface of the drive shaft (3032) is fixedly connected to a pump blade (3033), a position below the pump blade (3033) on the heat dissipation container (3031) is sealed and connected to the heat exchange tube (302), a position above the pump blade (3033) on the heat dissipation container (3031) is sealed and connected to the heat dissipation tube (301), and the drive shaft (3032) passes through the lower end of the heat dissipation container (3031) and is drivingly connected to a drive motor (3034).
5. The LED light source device with high luminous efficiency according to claim 4, characterized in that: The outer side of the heat dissipation container (3031) is provided with a plurality of heat dissipation grooves (3035) that are evenly and densely distributed in an annular shape, and the heat exchange tube (302) is arranged in the heat dissipation groove (3035) in a spirally coiled shape.
6. The LED light source device with high luminous efficiency according to claim 5, characterized in that: A fan blade (3036) is fixedly connected to a position on the driving shaft (3032) between the heat dissipation container (3031) and the driving motor (3034); an air guide cover (3037) is fixedly installed on the outer side of the driving motor (3034) corresponding to the fan blade (3036); an opening at the top of the air guide cover (3037) corresponds to the heat dissipation groove (3035); and an air inlet hole (3038) is provided at the bottom of the air guide cover (3037).
Citation Information
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