A UV-LED curing lamp

Abstract

The embodiment of the present invention provides a UV-LED curing lamp, comprising: a plurality of UV-LED modules and a frame, and an aviation socket, wherein the plurality of UV-LED modules are fixedly arranged on one end surface of the frame, and the UV-LED modules are electrically connected to the aviation socket. By modularizing the UV-LED curing lamp, each UV-LED module has independent curing components, and each UV-LED module is independently installed and connected to a bus, so that a single UV-LED module can be repaired online without stopping and waiting, thereby simplifying the UV-LED assembly process and reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of ultraviolet curing, and in particular to a UV-LED curing lamp. Background Art

[0002] UV-LED (ultraviolet light-emitting diode) curing lamps are replacing traditional mercury lamps with the advantages of energy saving, environmental protection and long life, and are used in ink curing in the printing industry.

[0003] Existing UV-LED curing lamps typically have hundreds or even thousands of LEDs densely packed together. Because UV-LED curing lamps are all integrated structures, the biggest problem with this structure is that it is inconvenient to repair. Once an individual LED is damaged, the user cannot repair or replace it. They can only wait for the manufacturer to repair it or send it back to the manufacturer for replacement, and the entire device will be shut down while waiting, seriously affecting production efficiency. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide a UV-LED curing lamp that overcomes the above problems or at least partially solves the above problems.

[0005] In order to solve the above problems, an embodiment of the present invention discloses a UV-LED curing lamp, comprising: a plurality of UV-LED modules and a frame, and an aviation socket, wherein the plurality of UV-LED modules are fixedly arranged on one end surface of the frame, and the UV-LED modules are electrically connected to the aviation socket.

[0006] Furthermore, the UV-LED module includes a wire and a terminal, and the wire is electrically connected to the aviation socket through the terminal.

[0007] Furthermore, the UV-LED module further includes a UV-LED substrate, a cover plate, and a light-transmitting component, wherein the light-transmitting component covers the top surface of the UV-LED substrate, and the cover plate fixes both ends of the light-transmitting component to the frame. The UV-LED substrate is electrically connected to the wire.

[0008] Furthermore, the UV-LED substrate is an LED chip array.

[0009] Furthermore, it also includes a metal radiator, heat dissipation fins and an exhaust fan. The UV-LED substrate is fixed on the top surface of the metal radiator. The top surface of the metal radiator is provided with a wire groove for laying the wires. The heat dissipation fins are provided on the bottom surface of the metal radiator. The opposite end surfaces of the frame are respectively provided with an air inlet and an exhaust port for circulating the heat of the heat dissipation fins. The exhaust port is connected to the exhaust fan.

[0010] Furthermore, the metal radiator is an aluminum profile radiator with a nickel-plated surface.

[0011] Furthermore, a substrate groove is provided on the top surface of the metal heat sink, and the UV-LED substrate is an aluminum nitride ceramic substrate having the same width as the metal heat sink. The bottom surface of the UV-LED substrate is copper plated and fixed to the substrate groove by soldering.

[0012] Furthermore, it also includes a metal radiator and a water-cooled radiator, the UV-LED substrate is fixed on the top surface of the metal radiator, and several UV-LED modules are fixedly arranged on the top surface of the water-cooled radiator.

[0013] Furthermore, the water-cooled radiator includes a water inlet pipe and a water outlet pipe, and the water inlet pipe is arranged in parallel with the water outlet pipe.

[0014] Furthermore, the metal heat sink includes a heat-conducting copper plate.

[0015] The embodiments of the present invention include the following advantages: by modularizing the UV-LED curing lamp, each UV-LED module has independent curing components, and each UV-LED module is independently installed and connected to the bus. When repairing an individual UV-LED module, it can be operated online without having to stop and wait, which simplifies the UV-LED assembly process and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a block diagram of a UV-LED curing lamp embodiment of the present invention;

[0017] Figure 2 This is an exploded view of the structure of an embodiment of a UV-LED curing lamp of the present invention;

[0018] Figure 3 This is a structural block diagram of an embodiment of a UV-LED module of the present invention;

[0019] Figure 4 This is an exploded view of the structure of a UV-LED module embodiment of the present invention;

[0020] Figure 5 This is a structural block diagram of another embodiment of a UV-LED curing lamp of the present invention;

[0021] Figure 6 This is an exploded view of another embodiment of a UV-LED curing lamp according to the present invention;

[0022] Figure 7 This is a structural exploded view of another embodiment of a UV-LED module of the present invention.

[0023] 1 UV-LED module, 2 frame, 3 exhaust port, 4 air inlet, 5 terminal block, 6 wire, 7 water inlet pipe, 8 water outlet pipe, 9 water cooling radiator, 10 aviation socket, 11 light-transmitting component, 12 UV-LED substrate, 13 cover, 14 metal radiator, 15 cooling fin, 16 wire trough, 31 first baffle, 41 second baffle DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] One of the core concepts of the embodiment of the present invention is to provide a UV-LED curing lamp, including: a plurality of UV-LED modules 1 and a frame 2, an aviation socket 10, a plurality of UV-LED modules 1 are fixedly arranged on one end face of the frame 2, and the UV-LED module 1 is electrically connected to the aviation socket 10. UV-LED (Ultraviolet light emitting diode) is a type of LED, and its wavelength range is: 260-400nm, and the wavelength mainly used for UV-LED curing is 365nm-395nm. By modularizing the UV-LED curing lamp, each UV-LED module 1 has independent curing components, and each UV-LED module 1 is independently installed and connected to the bus. When a single UV-LED module 1 is repaired, it can be directly operated online without the need to stop and wait, which simplifies the assembly process of UV-LED and reduces production costs.

[0026] In this embodiment, the UV-LED module 1 includes a wire 6 and a terminal block 5. The wire 6 is electrically connected to an aviation socket 10 via the terminal block 5. One end of the wire 6 is connected to the UV-LED module 1, and the other end is connected to the aviation socket 10 via a bus channel. The aviation socket 10 is a connector, an electromechanical component that connects electrical circuits. This is achieved by installing several UV-LED modules 1 independently and connecting them to the same aviation socket 10 via the wire 6.

[0027] In this embodiment, the UV-LED module 1 further comprises a UV-LED substrate 12, a cover plate 13, and a light-transmitting component 11. The light-transmitting component 11 covers the top surface of the UV-LED substrate 12. The cover plate 13 secures both ends of the light-transmitting component 11 to the frame 2 to protect the UV-LED substrate. In one embodiment, the light-transmitting component 11 is made of quartz glass. Quartz glass is made by melting various pure natural quartz materials. Its linear expansion coefficient is extremely low, 1 / 10-1 / 20 that of ordinary glass, and it has good thermal shock resistance. The UV-LED substrate 12 is electrically connected to the wire 6. In another embodiment, the light-transmitting component 11 is a lens (e.g., a cylindrical lens). The UV-LED module can also be simplified by removing the light-transmitting component 11 (quartz glass or lens) without affecting assembly and replacement. A single light-transmitting module can be used to cover the entire surface of the UV-LED curing lamp. After the UV-LED module 1 is assembled, another light-transmitting module can be placed on top. When the UV-LED module 1 needs to be replaced, the light-transmitting module is first removed and then replaced. In one embodiment, the UV-LED substrate 12 is an aluminum nitride ceramic substrate. Aluminum nitride ceramic is a ceramic with aluminum nitride as the main crystal phase. It has excellent properties such as high thermal conductivity, low expansion coefficient, high strength, high temperature resistance, chemical corrosion resistance, high resistivity, and low dielectric loss. The width of the UV-LED substrate 12 is equal to the width of the frame 2. A 5x8 LED chip array is provided on the UV-LED substrate 12. The back of the alumina ceramic substrate is copper-plated, providing excellent heat transfer.

[0028] In one embodiment, 10 UV-LED modules 1 are fixed to the fixing screw holes on both sides of the frame 2 through the screw holes on the two wings of the cover plate 13. The screws are inserted from one side of the frame 2 so that there are no protruding nuts on the two wings of the module, which also facilitates installation and removal. The terminal 5 on the frame 2 is a spring-loaded ejector pin fixed to the hole of the terminal 5. When the UV-LED module 1 is fixed to the frame 2, the terminal 5 on the module is in close contact with the spring-loaded terminal 5 on the frame 2. The other end of the terminal 5 on the frame 2 is welded with a wire 6. All wires 6 are connected to the aviation socket 10 on the rear baffle through the bus channel on the frame 2. When the power is connected, all UV-LED modules 1 can be powered. The LED modules 1 are powered, with air inlets 4 on the front baffle and exhaust vents 3 on the rear baffle. These vents are connected to an exhaust fan. When the exhaust fan is turned on, cooling air flows through the heat sinks of all UV-LED modules 1, removing heat. The UV-LED modules 1 also include front and rear covers 13, 13. These covers serve as a transition between the UV-LED modules 1 and also block stray light. The UV-LED modules 1 are spliced ​​together, touching but not connected. If an LED fails, simply loosen two screws to remove the damaged UV-LED module 1 and replace it with a new one. This is simple and convenient. To accommodate UV-LED curing lamps of varying lengths, simply add or subtract UV-LED modules 1, greatly facilitating their production and assembly.

[0029] In this embodiment, the UV-LED substrate 12 is an LED chip array. The LED chip array is arranged as needed, including 5x8, 6x8, 8x8, 10x10, or 8x13 arrangements, and the array is connected in a certain series-parallel manner as required. The total power of the LED chip array on a single UV-LED module 1 reaches 20W-1000W. The wavelength of the LED chip array is generally 365nm to 405nm, and shorter wavelengths such as 275nm and 310nm can also be used. The UV-LED array can be a single wavelength or a mixture of multiple wavelengths. The width of the UV-LED module 1 (along the arrangement direction) is set to 10mm to 200mm.

[0030] In this embodiment, a metal heat sink, heat fins, and an exhaust fan are also included. The UV-LED substrate 12 is fixedly mounted on the top surface of the metal heat sink. The top surface of the metal heat sink is provided with a wire groove 6 for laying the wires 6. The heat fins are provided on the bottom surface of the metal heat sink. The two opposite ends of the frame 2 are respectively provided with an air inlet 4 and an exhaust port 3 for circulating the heat of the heat fins. The exhaust port 3 is connected to the exhaust fan. The above-mentioned metal heat sink is an aluminum profile heat sink with a nickel-plated surface. In a specific embodiment, the profile of the above-mentioned metal heat sink is 120 mm long, 32 mm wide, and 80 mm high. The exhaust fan is aligned in the direction of the gap between the heat fins to allow air to flow, thereby dissipating heat from the heat fins. This application does not limit the arrangement direction of the heat fins.

[0031] In this embodiment, the metal radiator is an aluminum profile radiator with a nickel plating surface. The nickel-plated aluminum profile radiator has a beautiful appearance, light weight, good heat dissipation performance, and has a strong energy-saving effect. Nickel is plated on the surface of the processed aluminum profile radiator.

[0032] In this embodiment, a substrate groove is provided on the top surface of the metal heat sink, and the UV-LED substrate 12 is an aluminum nitride ceramic substrate with the same width as the metal heat sink. The bottom surface of the UV-LED substrate 12 is copper-plated and fixed to the substrate groove by soldering, which can achieve a strong heat transfer effect, enhance the use efficiency of the UV-LED substrate 12 and extend its service life.

[0033] In this embodiment, a metal heat sink and a water-cooled heat sink 9 are also included. The UV-LED substrate 12 is fixedly mounted on the top surface of the metal heat sink, and a plurality of UV-LED modules 1 are fixedly arranged on the top surface of the water-cooled heat sink 9. Water cooling, due to the high specific heat capacity of water, can remove most of the heat from the UV-LED substrate 12, achieving good heat dissipation.

[0034] In this embodiment, the water-cooled radiator 9 includes a water inlet pipe 7 and a water outlet pipe 8, and the water inlet pipe 7 is arranged in parallel with the water outlet pipe 8. In this embodiment, the water inlet pipe 7 and the water outlet pipe 8 are arranged in parallel in the water-cooled radiator 9. By aligning the length direction of the water inlet pipe 7 and the water outlet pipe 8 with the arrangement direction of the UV-LED module 1, the most efficient heat dissipation can be achieved. In a specific embodiment, the UV-LED curing lamp includes 10 UV-LED modules 1, which are tightly fixed to the water-cooled radiator 9 by screws to form a modular UV-LED curing lamp. The UV-LED curing lamp also includes 10 sets of spring-type thimble-type terminal blocks, which are fixedly mounted on one side of the water-cooled radiator 9 and are arranged opposite to the terminal blocks 5 on the UV-LED module 1. The UV-LED module 1 is provided with two through-holes, through which screws are inserted to securely fasten the UV-LED module 1 to the water-cooled heat sink 9. Adjacent UV-LED modules 1 are in contact with each other but are not connected. Thermal paste or silicone grease is applied between the UV-LED module 1 and the surface of the water-cooled heat sink 9 to transfer heat to the metal heat sink. A wire 6 is soldered to the other end of the terminal block 5 on the water-cooled heat sink 9 and connected to an aviation socket 10 after passing through a wire trough within the frame 2. The frame 2 is secured to both sides of the water-cooled heat sink 9 with screws. The length of the water-cooled heat sink 9 is set according to the size of the curing lamp, and the corresponding number of modules can be installed, greatly facilitating the production and assembly of the curing lamp. If any chip is damaged, simply loosen the two fixing screws and replace the corresponding UV-LED module 1.

[0035] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0036] The UV-LED curing lamp provided by the present invention is described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. At the same time, for those skilled in the art, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A UV-LED curing lamp, characterized in that: include: A plurality of UV-LED modules, a frame and an aviation socket, wherein the plurality of UV-LED modules are fixedly arranged on one end surface of the frame, and the UV-LED modules are electrically connected to the aviation socket; Each of the UV-LED modules includes a wire and a terminal, and the wire is electrically connected to the aviation socket through the terminal; Each of the UV-LED modules further comprises a UV-LED substrate, a cover plate and a light-permeable component, wherein the light-permeable component covers the top surface of the UV-LED substrate, the cover plate fixes the two ends of the light-permeable component to the frame, the UV-LED substrate is electrically connected to the wire, the UV-LED module is fixed to the fixing screw holes on both sides of the frame through the screw holes on the two wings of the cover plate, the screws are inserted from one side of the frame, the wiring terminals on the frame are spring-type ejector pins, when the UV-LED module is fixed to the frame, the wiring terminals of the UV-LED module are in close contact with the wiring terminals on the frame, the other end of the wiring terminals on the frame is welded with a wire, and all the wires are connected to the aviation socket through the bus channel on the frame; The UV-LED curing lamp further comprises a metal heat sink, heat dissipation fins and an exhaust fan. The UV-LED substrate is fixedly arranged on the top surface of the metal heat sink. The top surface of the metal heat sink is provided with a wire groove for laying the wires of the UV-LED module. The heat dissipation fins are arranged on the bottom surface of the metal heat sink. The two opposite end surfaces of the frame are respectively provided with an air inlet and an air exhaust port for circulating the heat of the heat dissipation fins. The air exhaust port is connected to the exhaust fan. The metal heat sink is an aluminum profile heat sink with nickel plating on the surface; a substrate groove is provided on the top surface of the metal heat sink, and the UV-LED substrate is an aluminum nitride ceramic substrate with the same width as the metal heat sink. The bottom surface of the UV-LED substrate is copper plated and fixed to the substrate groove by soldering.

2. The UV-LED curing lamp according to claim 1, characterized in that: The UV-LED substrate is an LED chip array.

Images