An ultraviolet LED luminaire for printing and curing

Abstract

The utility model discloses a kind of printing solidification's ultraviolet LED lamps and lanterns, it is related to the technical field of ultraviolet LED curing lamp, including lamp body, it is characterized in that, the lamp body is by M one character arrangement optical unit composition, 1 one character arrangement optical unit includes N one character arrangement secondary light distribution lens, 1 one character arrangement secondary light distribution lens is provided with P one character arrangement LED light source body in light side, 1 one character arrangement LED light source body is provided with Q one character arrangement LED chip inside, by the arrangement line of secondary light distribution lens, LED light source body and LED chip and the focal point line of lamp body are in same plane, when LED chip is after emitting light, it can converge light, in this way, when the light of LED chip is converged after secondary light distribution lens, it can form energy concentration, continuous distribution's strip-shaped light spot, so it can reduce the invalid loss of light, significantly improve the energy utilization of UV light source in printing solidification process.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet LED curing lamp technology, specifically to an ultraviolet LED lamp for printing curing. Background Technology

[0002] In the field of printing curing, ultraviolet (UV) LED lamps play a crucial role as a core light source. Their primary function is to rapidly cure printing inks or coatings using high-energy UV light, thereby improving production efficiency and product performance. However, existing UV LED lamps suffer from significant technical deficiencies in their design and manufacturing processes, particularly in the internal structural design of the light source components.

[0003] Currently, conventional UV LED light sources are packaged between LED chips and encapsulating lenses. The LED chips are arranged in a rectangular structure, which leads to problems such as light spot segmentation affecting the concentration of light intensity during the later curing process. This reduces the utilization rate of the light source during curing. Furthermore, the uneven arrangement of the chips makes it impossible to effectively focus the beam emitted by the lamp, resulting in an increased light spot size and a more dispersed light intensity distribution. These problems weaken the effective UV curing energy of UV LED lamps in the printing curing field and cannot meet the requirements of modern printing processes for high-quality curing effects. Utility Model Content

[0004] The purpose of this invention is to provide a UV LED lamp for printing and curing, which aims to solve the problem that the random arrangement of chips in existing LED lamps makes it difficult to effectively concentrate local energy density, thus affecting subsequent curing.

[0005] The purpose of this invention is to provide a UV LED lamp for printing and curing, which aims to solve the problem that the random arrangement of chips in existing LED lamps makes it difficult to effectively concentrate local energy density, thus affecting subsequent curing.

[0006] This utility model is achieved through the following technical solution: A UV LED lamp for printing and curing includes a lamp body, the lamp body including M optical units, each optical unit including N secondary light distribution lenses arranged in a line, each secondary light distribution lens having P LED light sources arranged in a line on its light-incident side, and each LED light source having Q LED chips arranged in a line inside, where M is a natural number greater than or equal to 1, N is a natural number greater than or equal to 1, P is a natural number greater than or equal to 2, and Q is a natural number greater than or equal to 1.

[0007] Furthermore, the arrangement lines of the secondary light distribution lens, the arrangement lines of the LED light source, and the arrangement lines of the LED chip are on the same plane as the focal line of the lamp body.

[0008] Furthermore, when the number of LED chips arranged in a line within one LED light source is greater than one, there is a gap of 0.1mm to 0.4mm between adjacent LED chips.

[0009] Furthermore, the lamp body also includes a lamp trough profile adapted to the optical unit. The lamp trough profile is provided with a mounting groove facing the lamp trough, and a fixing seat is adapted and embedded in the mounting groove. A PCB substrate is provided on the outer surface of the fixing seat along the length direction. The N secondary light distribution lenses arranged in a straight line are provided at the opening of the mounting groove. The P LED light sources arranged in a straight line are electrically connected to the circuit on the PCB substrate through solder points.

[0010] Furthermore, the mounting base has cooling water channels along its length for heat dissipation.

[0011] Furthermore, the end of the fixing base extends toward both sides of the end of the lamp trough profile, and fixing plates are provided on both sides of the end of the fixing base, and channels are provided on both sides of the end of the fixing plates to allow water cooling pipes to pass through, wherein the water cooling pipes are sealed to the cooling water circuit through joints.

[0012] Furthermore, the apex of the lamp trough profile is arc-shaped.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. This utility model discloses a UV LED lamp for printing curing. By aligning the secondary light distribution lens, the LED light source, and the LED chip's arrangement lines with the focal line of the lamp body on the same plane, the LED chip can converge the light after emitting light. Thus, when the light emitted by the LED chip is converged by the secondary light distribution lens, it can form a concentrated and continuously distributed strip-shaped light spot. This reduces the ineffective loss of light and significantly improves the energy utilization rate of the UV light source in the printing curing process. Therefore, the concentrated and uniform strip-shaped light spot can accelerate the curing reaction speed of printed materials, thereby effectively improving curing efficiency and curing quality.

[0014] 2. This utility model discloses a UV LED lamp for printing curing. By setting a spacing between adjacent LED chips, the light emitted by the LED chips after being powered on can be more uniform. The concentrated and uniform strip-shaped light spot can accelerate the curing reaction speed of the printed matter, thereby effectively improving the curing efficiency and curing quality. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1This is an overall structural diagram of a UV LED lamp for printing curing according to this utility model.

[0016] Figure 2 This is a top view of the internal perspective structure of the lamp trough profile of this utility model. A represents the arrangement lines of the secondary light-distributing lenses; B represents the arrangement lines of the LED light source; C represents the arrangement lines of the LED chips; and D represents the focal line of the light-emitting surface of the lamp.

[0017] Figure 3 This is a right-side view of the internal structure of the lamp trough profile of this utility model.

[0018] Figure 4 This is a schematic diagram showing the arrangement of the secondary light distribution lens, LED light source, and LED chip of this utility model.

[0019] Figure 5 This is a schematic diagram of the arrangement of the LED light source and two LED chips of this utility model.

[0020] Figure 6 This is a schematic diagram of the LED light source and the arrangement of 12 LED chips of this utility model.

[0021] Figure 7 This is a schematic diagram of the light transmission / refraction path between the LED light source and the secondary light distribution lens of this utility model.

[0022] Figure 8 This is a simulated light spot pattern after light distribution to a conventional rectangular array of chips.

[0023] Figure 9 This utility model presents a simulated light spot diagram after the chip is light-distributed.

[0024] The attached diagram shows the markings and corresponding component names: 1-Lamp body; 11-Optical unit; 101-Secondary light distribution lens; 1011-LED light source; 1012-LED chip; 1013-PCB substrate; 102-Light trough profile; 1021-Fixing base; 1022-Cooling water channel; 12-Fixing plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention.

[0027] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0028] Furthermore, for clarity and brevity, descriptions of well-known structures, functions, and configurations may have been omitted. Those skilled in the art will recognize that various changes and modifications can be made to the examples described herein without departing from the spirit and scope of this disclosure.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0030] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0031] Example 1 like Figure 1 As shown, this utility model discloses an ultraviolet LED lamp for printing and curing, comprising a lamp body 1, which includes M optical units 11, each optical unit 11 including N secondary light distribution lenses 101 arranged in a line, and P LED light sources 1011 arranged in a line on the light-incident side of each secondary light distribution lens 101. Each LED light source 1011 contains Q LED chips 1012 arranged in a line, where M is a natural number greater than or equal to 1 (e.g., M=1), N is a natural number greater than or equal to 1, P is a natural number greater than or equal to 2, and Q is a natural number greater than or equal to 2 (e.g., N=1, P=2, Q=2). The secondary light distribution lens 101 includes an arrangement line A, the LED light source 1011 includes an arrangement line B, the LED chip 1012 includes an arrangement line C, and the lamp body 1 includes a focal line D. The arrangement lines A, B, and C are in the same plane as the focal line D.

[0032] In the above structure, when the alignment lines of the secondary light distribution lens 101, the LED light source 1011, and the LED chip 1012 are on the same plane as the focal line of the light-emitting surface of the lamp body 1, the LED chip 1012 can converge the light when emitting light. Specifically, in the prior art, conventional LED chips 1012 are usually arranged in a rectangular array, which easily leads to the segmentation of the emitted light spot, the dispersion of light distribution, and the difficulty in converging into a continuous and uniform light spot, thereby causing a decrease in the utilization rate of the light source, for example, see [reference missing]. Figure 8 The diagram shows a simulated light spot pattern of a conventional rectangular array of LED chips. However, the solution in this application arranges the LED chip, LED light source 1011, and secondary light distribution lens 101 on the same plane, allowing them to share a common plane. Thus, when the light emitted from the LED chip 1012 is focused by the secondary light distribution lens 101, it can form a concentrated and continuously distributed stripe-shaped light spot, as shown in the reference diagram. Figure 9 The diagram shows a simulated light spot pattern arranged in a single line. This design effectively reduces ineffective light loss and significantly improves the energy utilization rate of the UV light source during the printing and curing process. Furthermore, the concentrated and uniform strip-shaped light spot can accelerate the curing reaction speed of the printed material, thereby effectively improving curing efficiency and curing quality.

[0033] Furthermore, such as Figure 1 and Figure 2 As shown, when N = 1, the secondary light distribution lenses 101 arranged in a line can be integrally formed along the length direction, thus forming a continuous integral optical structure; when N>1, the secondary light distribution lenses 101 arranged in a line are formed by multiple independent sub-lens units arranged in a line along the length direction, and each sub-lens unit is independent of each other, together forming a modular optical structure.

[0034] Furthermore, such as Figures 1 to 5 As shown, a PCB substrate 1013 is also provided on the light-incident side of the linearly arranged secondary light distribution lens 101. P linearly arranged LED light sources 1011 are electrically connected to the circuit on the PCB substrate 1013 through solder joints. In use, the PCB substrate 1013 receives the input of the external driving power supply and supplies power to the linearly arranged LED light sources 1011 through internal wiring, so that the internal LED chips 1012 can emit light.

[0035] Furthermore, such as Figure 4 and Figure 5 As shown, when the number of LED chips 1012 arranged in a line within an LED light source 1011 is greater than one, there is a gap of 0.1mm to 0.4mm between adjacent LED chips 1012. Through the gap design, the light emitted by the LED chips 1012 after being powered on can be more uniform.

[0036] Example 2 This embodiment 2 is implemented based on embodiment 1, such as... Figures 1 to 3 As shown, the lamp body 1 also includes a lamp trough profile 102 adapted to the optical unit 11. The lamp trough profile 102 has a mounting groove along its length from its front side to its interior. A mounting base 1021 is fitted and embedded into the inner end of the mounting groove, and the ends of the mounting base 1021 extend towards both sides of the end of the lamp trough profile 102. A PCB substrate 1013 is connected to the mounting base 1021 along its length. N linearly arranged secondary light-distributing lenses 101 are disposed at the opening of the mounting groove. In use, the linearly arranged secondary light-distributing lenses 101 and the LED light source 1011 can be mounted and fixed using the lamp trough profile 102 and the mounting base 1021.

[0037] Furthermore, such as Figure 3 As shown, to facilitate heat dissipation of the PCB substrate 1013, the mounting base 1021 is made of a material with good thermal conductivity, such as copper or other metals with excellent thermal conductivity. A cooling water channel 1022 for heat dissipation is formed along the length of the mounting base 1021. During use, the heat generated by the PCB substrate 1013 is conducted to the mounting base 1021, where it is quickly absorbed and carried away by the continuously circulating coolant (usually water). The high-temperature coolant, after absorbing heat, is then pumped to an external heat exchanger, typically a water-cooled radiator, and then efficiently dissipated into the air by a fan. After cooling, the coolant flows back to the cooling water channel 1022 of the mounting base 1021, forming a continuous cooling process. It should be noted that the water-cooled radiator and fan mentioned here are existing technologies, and their specific installation positions, connection methods, and heat dissipation details are not elaborated here.

[0038] Furthermore, such as Figure 1 and Figure 3 As shown, fixing plates 12 are also provided on both sides of the end of the fixing base 1021. These fixing plates 12 are connected to the fixing base 1021. In use, the fixing plates 12 provide support for the lamp trough profile 102 and the fixing base 1021, allowing them to be assembled into a complete lamp. Simultaneously, channels allowing water-cooling pipes to pass through are provided on both sides of the end of the fixing plates 12. The water-cooling pipes are sealed to the cooling water passage 1022 via connectors. In use, external pipes can pass through the slots and be sealed to the cooling water passage of the fixing base 1021.

[0039] Furthermore, the apex of the light trough profile 102 is set in an arc shape. This design allows the light sources of the LED light sources 1011 on the PCB substrate 1013 to be distributed in an arc shape after the light trough profile 102 is installed. When the LED light sources 1011 in different directions emit light beams, their light paths are guided by the arc arrangement and can converge towards the middle part, thereby realizing the superposition and concentration of light energy, effectively improving the irradiance of the target area, and ensuring the efficiency of printing and curing.

[0040] The working principle of this utility model is as follows: First, the LED chip 1012 is installed inside the LED light source body 1011. Then, the LED light source body 1011 is soldered onto the PCB substrate 1013. Then, the PCB substrate 1013 is installed on the fixing seat 1021. After installation, the fixing seat 1021 is embedded into the mounting groove of the lamp trough profile 102. Next, the secondary focusing lens is connected to the groove of the mounting groove. After connection, the part protruding from the end of the fixing seat 1021 is connected to the fixing plate 12.

[0041] Since the arrangement lines of the secondary light distribution lens 101, the LED light source 1011, and the LED chip 1012 are on the same plane as the focal line of the lamp body 1, the LED chip 1012 can converge the light after emitting light. Thus, when the light emitted by the LED chip 1012 is converged by the secondary light distribution lens 101, it can form a concentrated and continuously distributed strip-shaped light spot. This can reduce the ineffective loss of light and significantly improve the energy utilization rate of the UV light source in the printing curing process. Therefore, the concentrated and uniform strip-shaped light spot can accelerate the curing reaction speed of the printed matter, thereby effectively improving the curing efficiency and curing quality.

[0042] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A UV LED lamp for printing and curing, comprising a lamp body (1), characterized in that, The lamp body (1) includes M optical units (11), each optical unit (11) includes N secondary light distribution lenses (101) arranged in a line, each secondary light distribution lens (101) has P LED light sources (1011) arranged in a line on the light-incident side, and each LED light source (1011) has Q LED chips (1012) arranged in a line inside, where M is a natural number greater than or equal to 1, N is a natural number greater than or equal to 1, P is a natural number greater than or equal to 2, and Q is a natural number greater than or equal to 1.

2. The ultraviolet LED lamp for printing curing according to claim 1, characterized in that, The arrangement lines of the secondary light distribution lens (101), the LED light source (1011), and the LED chip (1012) are on the same plane as the focal line of the lamp body (1).

3. The ultraviolet LED lamp for printing curing according to claim 1, characterized in that, When the number of LED chips (1012) arranged in a line within one LED light source (1011) is greater than one, there is a gap of 0.1mm to 0.4mm between adjacent LED chips (1012).

4. The ultraviolet LED lamp for printing curing according to claim 1, characterized in that, The lamp body (1) also includes a lamp slot profile (102) adapted to the optical unit (11). The lamp slot profile (102) is provided with a mounting slot, and a mounting base (1021) is adapted and embedded in the mounting slot. A PCB substrate (1013) is provided on the outer surface of the mounting base (1021) along the length direction. The N secondary light distribution lenses (101) arranged in a line are provided at the opening of the mounting slot. The P LED light sources (1011) arranged in a line are electrically connected to the circuit on the PCB substrate (1013) through solder joints.

5. The ultraviolet LED lamp for printing curing according to claim 4, characterized in that, The mounting base (1021) has a cooling water channel (1022) inside along its length for heat dissipation.

6. The ultraviolet LED lamp for printing curing according to claim 5, characterized in that, The end of the fixing seat (1021) extends toward both sides of the end of the lamp trough profile (102). Fixing plates (12) are provided on both sides of the end of the fixing seat (1021), and channels that allow water cooling pipes to pass through are provided on both sides of the end of the fixing plates (12). The water cooling pipes are sealed to the cooling water circuit (1022) through joints.

7. The ultraviolet LED lamp for printing curing according to claim 4, characterized in that, The apex of the lamp trough profile (102) is set in an arc shape.

Images