Self-adsorption UV light source capable of rapidly dissipating heat

Abstract

The invention discloses a self-adsorption UV light source capable of rapidly dissipating heat, and belongs to the technical field of UV light sources. A self-adsorption UV light source capable of dissipating heat rapidly comprises a UV light-emitting unit, the UV light-emitting unit is installed at an opening in the front end of a shell, a radiator is installed at the front end of the shell, a heat dissipation fan is arranged at the rear end of the shell, rear adsorption glass is installed on the outer side of the front end of the shell and connected with a vacuumizing connecting assembly, and the vacuumizing connecting assembly is connected with the shell. Vacuum glass is arranged at the front end of the vacuumizing connecting assembly, and front adsorption glass is installed on the vacuum glass. The problems that in the prior art, the occupied space for installation is large, carrying and curing are not synchronous easily, and the heat dissipation structure of the UV light source is unreasonable are solved. According to the invention, the installation space is reduced, the cost is reduced, the heat of the UV light-emitting unit can be quickly led out and dissipated, the temperature is prevented from being too high, multiple operating parameters are monitored, sound-light alarm is given and automatic protection is triggered when the operation is abnormal, and the operation safety and reliability of equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of UV light source technology, specifically to a self-adsorption UV light source with rapid heat dissipation. Background Technology

[0002] In the field of automated manufacturing, especially in processes such as electronic component packaging, plastic part bonding, and printed material curing, UV curing technology has been widely used due to its advantages such as fast curing speed, environmental friendliness, and excellent curing effect. The core equipment of UV curing technology is a UV light source, which uses ultraviolet rays of a specific wavelength emitted by the UV light source to irradiate the curing material, causing it to complete the curing reaction in a short time.

[0003] Currently, most commercially available specialized UV light sources only have a single curing function and lack product adsorption and handling capabilities. In actual production, when products need to be moved and UV cured simultaneously, companies need to install separate suction cup mechanisms for product handling and UV curing lamps for curing, requiring two independent sets of equipment to complete the process. This multi-equipment approach has several drawbacks: First, the installation of both sets of equipment requires significant production space, which is often unacceptable for production lines with limited space. Second, the coordinated control of the two sets of equipment is difficult, easily leading to asynchronous handling and curing, affecting production efficiency and product curing quality. Furthermore, existing UV light sources have inefficient heat dissipation structures, often relying on natural cooling or simple air cooling, resulting in low heat dissipation efficiency. The large amount of heat generated during prolonged operation cannot be dissipated in time, reducing the luminous efficiency and lifespan of the UV light source, potentially affecting the normal operation of surrounding equipment, and even damaging the performance of the cured material. Therefore, to address these shortcomings, we propose a self-adsorption UV light source with rapid heat dissipation. Summary of the Invention

[0004] The purpose of this invention is to provide a self-adsorption UV light source with rapid heat dissipation. By integrating the vacuum adsorption unit and the UV light-emitting unit into one unit, the installation space is reduced and the cost is lowered. It can quickly conduct and dissipate the heat of the UV light-emitting unit, maintain the internal temperature of the equipment, avoid component aging and damage, improve operational stability and service life, and integrate a temperature monitoring and fault alarm module to achieve intelligent temperature control to avoid overheating and monitor multiple operating parameters. In case of abnormality, it will provide audible and visual alarms and trigger automatic protection, improve the safety and reliability of equipment operation, reduce production risks, and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-adsorbing UV light source with rapid heat dissipation, comprising a housing and a UV light-emitting unit, wherein the UV light-emitting unit is installed at the front opening of the housing, a heat sink is installed at the front end of the housing, a cooling fan is provided at the rear end of the housing, a fan mesh is provided on the outside of the cooling fan, a rear adsorption glass is installed on the outer side of the front end of the housing, the rear adsorption glass is connected to a vacuum connection assembly, a vacuum glass is provided at the front end of the vacuum connection assembly, a front adsorption glass is installed on the vacuum glass, and the UV light-emitting unit, the heat sink, and the cooling fan are all connected to a power cord.

[0006] Preferably, the housing includes a rear cover plate, side short plates, side long plates, and a cover. Two sets of side short plates and side long plates are provided. The two sets of side long plates are arranged in parallel. Side short plates are installed on the left and right sides of the side long plates. The rear cover plate and the cover are installed at the front and rear ends of the side long plates, respectively.

[0007] Preferably, the vacuum connection assembly includes a connector, a negative pressure tube, a negative pressure connector, a sealing groove, and a sealing ring. The connector has a through hole, and both the inlet and outlet ends of the through hole have sealing grooves. A sealing ring is embedded in the sealing groove. A negative pressure connector is installed on the top of the connector, and the negative pressure connector communicates with the through hole. A negative pressure tube is installed on the negative pressure connector, and a negative pressure hole is opened on the connector.

[0008] Preferably, the front adsorption glass and the rear adsorption glass are arranged in parallel, and together with the vacuum glass and the shell, they form a vacuum negative pressure chamber. The material between the front adsorption glass and the rear adsorption glass is borosilicate glass. The fins of the heat sink are made by extrusion molding. A thermally conductive silicone pad is provided at the bottom of the heat sink.

[0009] Preferably, the UV light-emitting unit includes a light source, a driving circuit board, a heat insulation layer, and a light-emitting surface. The light source is installed between the vacuum negative pressure chamber and the shell, and its light-emitting surface faces the vacuum glass, corresponding to the light-transmitting structure of the vacuum glass, the front adsorption glass, and the rear adsorption glass. The light source is a high-density LED array. The driving circuit board integrates a constant current control chip and also has overcurrent and overvoltage protection functions. The heat insulation layer is an aerogel heat insulation pad, and the light-emitting surface is encapsulated with a transparent high-temperature resistant material.

[0010] Preferably, it further includes: a light intensity acquisition unit, which is set opposite to the light-emitting surface of the UV light-emitting unit, for acquiring the UV light intensity signal after irradiating the product to be cured, and converting the UV light intensity signal into a UV voltage signal; The curing progress determination unit is used to calculate the curing progress of the product to be cured based on the UV voltage signal. The reference current generation unit is used to generate a basic reference current based on the maximum and minimum driving current of the high-density LED array and the curing progress. Specifically, the product of the difference between the maximum and minimum driving current and the curing progress is obtained, and the basic reference current is the difference between the maximum driving current and the product. The constant current regulating unit is used to determine the initial stage of curing when the curing progress is within the first range, control the constant current output to start with the basic reference current, and increase the current according to the first current change rate. The constant current adjustment unit is also used to determine the curing progress as the middle stage when it is within the second range, and to control the constant current output to fine-tune the current according to the second current change rate. The constant current regulating unit is also used to determine the curing stage when the curing progress is within the third range, and to control the constant current output to reduce the current according to the third current change rate.

[0011] Preferably, the self-adsorption UV light source with rapid heat dissipation further includes: The temperature monitoring module is located on the surface of the heat sink and makes full contact with the heat sink. It is used to monitor the temperature of the heat sink in real time, thereby reflecting the operating temperature of the UV light-emitting unit, and controlling the power of the UV light-emitting unit and the operating parameters of the cooling fan according to the temperature monitoring signal. The fault alarm module is electrically connected to the vacuum connection component, UV light emission unit, heat dissipation unit, and temperature monitoring module, respectively, and is used to monitor various operating parameters of the equipment in real time.

[0012] Preferably, the temperature monitoring module specifically includes: A temperature sensor is used to monitor the temperature of the heat sink in real time, thereby reflecting the operating temperature of the UV light-emitting unit, and transmitting the monitored temperature signal to the control unit. The control unit is used to provide real-time feedback on the internal temperature of the device based on temperature signals, and to trigger the adjustment of the power of the UV light-emitting unit and the operating parameters of the cooling fan. When the monitored temperature exceeds the preset threshold, the power of the UV light-emitting unit is automatically reduced to reduce heat generation, while the speed of the cooling fan and the flow rate of compressed gas are increased to enhance the heat dissipation effect. When the temperature drops below the safe threshold, the power of the UV light-emitting unit and the operating parameters of the cooling fan are automatically restored.

[0013] Preferably, the implementation process of the fault alarm module specifically includes: The system has preset parameter thresholds. When any of the monitored parameters exceeds the preset range, it will immediately alert the operator through an audible and visual alarm. At the same time, the automatic protection mechanism of the equipment is triggered, which automatically cuts off the power supply to the UV light-emitting unit, causing the light source to stop working and shutting off the vacuum generator and compressed gas supply.

[0014] Preferably, the curing progress determining unit includes: The data acquisition unit is used to acquire the temperature signal of the heat sink and receive the coating thickness of the product to be cured input by the user. The penetration calculation unit is used to calculate the UV light penetration depth at time t based on the temperature signal and UV voltage signal of the heat sink. The progress calculation unit has a built-in multi-field coupled nonlinear integral model, which is used to calculate the curing progress of the product to be cured based on the UV light penetration depth at time t and the coating thickness of the product to be cured.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention integrates the vacuum adsorption unit and the UV light-emitting unit into one unit, eliminating the need for separate adsorption devices and UV light sources. This significantly reduces the installation space and lowers the manufacturing and maintenance costs of the equipment. At the same time, the adsorption structure and the UV light-emitting structure are designed in synergy, with the light-emitting surface and the adsorption glass corresponding to each other. This allows for simultaneous adsorption fixation and UV curing of small industrial products, avoiding problems such as product positioning deviation and uneven curing caused by separate designs. This improves the processing accuracy and production efficiency of the products and is suitable for the use of automated production lines. This invention features an integrated aluminum fin heat sink on the back of the UV light-emitting unit, which has high thermal conductivity and a large heat dissipation area. This allows for rapid heat transfer from the light source. A cooling fan provides sufficient airflow to achieve forced convection cooling. The multiple heat dissipation structures work together to quickly dissipate the heat from the UV light-emitting unit to the external environment, ensuring that the internal temperature of the equipment remains stable within a safe range. This avoids problems such as decreased LED light source efficiency and shortened lifespan due to excessive temperature, as well as aging of the sealing structure and deformation of the adsorption glass. This significantly improves the operational stability and lifespan of the equipment. This invention uses negative pressure holes on the vacuum glass to make the adsorption force act evenly on the product surface, which can meet the handling needs of most small industrial products and avoid product deformation or falling off due to uneven adsorption force. At the same time, the sealing structure uses high temperature resistant fluororubber sealing rings, which have excellent sealing performance, prevent negative pressure leakage, and ensure the stability of adsorption force. It is suitable for adsorption and handling of precision products such as micro electronic components, precision plastic parts, and small optical components. This invention integrates a temperature monitoring module and a fault alarm module. The temperature monitoring module monitors the internal temperature of the equipment in real time and can trigger intelligent temperature control to prevent overheating. The fault alarm module can monitor multiple operating parameters in real time, such as vacuum negative pressure, light source temperature, and fan speed. When the parameters exceed the preset range, it alerts the operator through audible and visual alarms and triggers an automatic protection mechanism to cut off the power and stop operation, preventing the fault from escalating, preventing equipment damage and product scrapping, improving the operational safety and reliability of the equipment, and reducing production risks. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of a self-adsorption UV light source with rapid heat dissipation according to the present invention; Figure 2 An exploded view of a self-adsorption UV light source with rapid heat dissipation according to the present invention; Figure 3 This is a front view of a self-adsorbing UV light source with rapid heat dissipation according to the present invention. Figure 4 This is a side view of a self-adsorbing UV light source with rapid heat dissipation according to the present invention. Figure 5 This is a top view of a self-adsorbing UV light source with rapid heat dissipation according to the present invention.

[0017] In the diagram: 1. Housing; 11. Rear cover; 12. Side short plate; 13. Side long plate; 14. Cover; 2. Heat sink; 3. Vacuum glass; 4. Vacuum connection assembly; 41. Connector; 42. Negative pressure pipe; 43. Negative pressure connector; 44. Sealing groove; 45. Sealing ring; 5. Cooling fan; 6. Rear adsorption glass; 7. Front adsorption glass; 8. Fan mesh; 9. Power cord; 10. UV light-emitting unit. Detailed Implementation

[0018] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To address the issues of existing technologies such as large installation space requirements, difficulty in adapting to compact production lines, challenges in coordinating the control of two sets of equipment, potential asynchrony between handling and curing leading to reduced production efficiency and product quality, and unreasonable heat dissipation structures for UV light sources, please refer to [link / reference needed]. Figures 1-3 This embodiment provides the following technical solution: A self-adsorption UV light source with rapid heat dissipation includes a housing 1 and a UV light-emitting unit 10. The UV light-emitting unit 10 is installed at the front opening of the housing 1. A heat sink 2 is installed at the front of the housing 1. A cooling fan 5 is provided at the rear of the housing 1. A fan mesh 8 is provided on the outside of the cooling fan 5. A rear adsorption glass 6 is installed on the outside of the front of the housing 1. The rear adsorption glass 6 is connected to a vacuum connection assembly 4. A vacuum glass 3 is provided at the front of the vacuum connection assembly 4. A front adsorption glass 7 is installed on the vacuum glass 3. The UV light-emitting unit 10, the heat sink 2, and the cooling fan 5 are all connected to a power cord 9. The front adsorption glass 7 and the rear adsorption glass 6 are arranged parallel to each other on both sides of the vacuum glass 3. The vacuum glass 3 is located at the light-transmitting window at the front of the main housing 1. The vacuum connection assembly 4 connects the vacuum negative pressure chamber inside the housing 1 with an external vacuum generator. The cooling fan 5 is installed at the rear of the housing 1 for forced convection heat dissipation.

[0020] The housing 1 includes a rear cover plate 11, side short plates 12, side long plates 13 and a cover 14. There are two sets of side short plates 12 and side long plates 13. The two sets of side long plates 13 are arranged in parallel. Side short plates 12 are installed on the left and right sides of the side long plates 13. The rear cover plate 11 and the cover 14 are installed at the front and rear ends of the side long plates 13, respectively.

[0021] The vacuum connection assembly 4 includes a connector 41, a negative pressure tube 42, a negative pressure connector 43, a sealing groove 44, and a sealing ring 45. The connector 41 has a through hole, and both the inlet and outlet ends of the through hole have sealing grooves 44. The sealing ring 45 is embedded within the sealing grooves 44. The negative pressure connector 43 is mounted on the top of the connector 41 and communicates with the through hole. The negative pressure tube 42, made of polytetrafluoroethylene, is mounted on the negative pressure connector 43. The negative pressure connector 43 has a quick-plug function, allowing plugging and unplugging within 10 seconds. The connection and disassembly of the vacuum pipeline are completed internally. The sealing ring 45 is made of fluororubber. The connector 41 is provided with a negative pressure hole. The negative pressure hole can make the negative pressure in the vacuum negative pressure chamber evenly transmitted to the adsorption surface of the front adsorption glass 7, ensuring the uniformity of the adsorption force and avoiding deformation or fall off of the adsorbed product due to uneven adsorption force. When the external vacuum generator is working, the air in the vacuum negative pressure chamber is drawn out through the negative pressure pipe 42 to form a stable negative pressure environment in the vacuum negative pressure chamber, and then adsorption force is generated through the negative pressure hole of the vacuum glass 3.

[0022] The front adsorption glass 7 and the rear adsorption glass 6 are arranged in parallel, forming a vacuum negative pressure chamber together with the vacuum glass 3 and the housing 1. The material between the front adsorption glass 7 and the rear adsorption glass 6 is borosilicate glass with an anti-fingerprint treatment and a light transmittance greater than 92%. Borosilicate glass has excellent light transmittance, high temperature resistance, and mechanical strength, and can effectively withstand the negative pressure and high temperature effects to prevent the glass from breaking. At the same time, the anti-fingerprint treatment on the glass surface can prevent the fingerprints of operators from adhering to the glass surface and affecting the transmittance and adsorption effect of UV light. The light transmittance of the front adsorption glass 7 and the rear adsorption glass 6 is greater than 92%, which can minimize the attenuation of UV light and ensure the curing effect. The fins of the heat sink 2 are made by extrusion molding process, which can ensure smooth airflow and improve the forced convection heat dissipation efficiency. A thermally conductive silicone pad is provided at the bottom of the heat sink 2 to fill the gap between the heat sink 2 and the UV light-emitting unit 10 and improve the thermal conductivity.

[0023] The UV light-emitting unit 10 includes a light source, a driving circuit board, a heat insulation layer, and a light-emitting surface. The light source is installed between the vacuum negative pressure chamber and the housing 1, with its light-emitting surface facing the vacuum glass 3. This corresponds to the light-transmitting structure of the vacuum glass 3, the front adsorption glass 7, and the rear adsorption glass 6, ensuring that UV light can pass smoothly through these glass layers and irradiate the surface of the adsorbed product, thus achieving UV curing. The light source is a high-density LED array. LEDs have advantages such as high luminous efficiency, low energy consumption, long lifespan, and stable light emission, making them suitable for integrated UV light sources. Users can select the appropriate emission wavelength according to their actual needs. The LED array density is 120-150 LEDs / square centimeter. This high-density array design ensures uniform light intensity on the light-emitting surface, with a light intensity distribution deviation of less than 5%, avoiding uneven product curing. The driving circuit board integrates a constant current control chip for constant current control. The chip enables constant current driving of the LED light source, ensuring its luminous stability. Users can flexibly adjust the light source power according to curing requirements, adapting to products of different materials and thicknesses. The driver circuit board also features overcurrent and overvoltage protection, automatically cutting off the circuit when excessive current or voltage occurs, protecting the LED light source and driver circuit board from damage and improving equipment safety. The heat insulation layer is an aerogel heat insulation pad, which has excellent heat insulation performance, effectively blocking heat conduction from the light source to the vacuum negative pressure chamber. This prevents excessive temperature in the vacuum negative pressure chamber from causing aging of the sealing structure and deformation of the adsorbed glass, while also preventing heat transfer to the adsorbed precision products, thus preventing product damage. The light-emitting surface is encapsulated with a transparent, high-temperature resistant material. The encapsulation layer has good light transmittance and high-temperature resistance, protecting the LED array from external impurities and reducing UV light attenuation, ensuring a good curing effect.

[0024] A self-adhesive UV light source with rapid heat dissipation also includes: The temperature monitoring module is located on the surface of the heat sink 2 and is in full contact with the heat sink 2. It is used to monitor the temperature of the heat sink 2 in real time, thereby reflecting the operating temperature of the UV light-emitting unit 10, and controlling the power of the UV light-emitting unit 10 and the operating parameters of the cooling fan 5 according to the temperature monitoring signal. The fault alarm module is electrically connected to the vacuum connection component 4, the UV light-emitting unit 10, the heat dissipation unit, and the temperature monitoring module, respectively, and is used to monitor various operating parameters of the equipment in real time, including the negative pressure value of the vacuum negative pressure chamber, the temperature of the UV light-emitting unit 10, the speed of the cooling fan 5, the pressure of the compressed gas, and the operating current and voltage of the LED light source.

[0025] The temperature monitoring module specifically includes: A temperature sensor is used to monitor the temperature of the heat sink 2 in real time, thereby reflecting the operating temperature of the UV light-emitting unit 10. The temperature sensor uses an NTC thermistor as the temperature sensor. NTC thermistors have the advantages of high sensitivity, wide temperature measurement range, small size and low cost, and are easy to install inside the equipment. The temperature sensor can accurately monitor the temperature changes inside the equipment and transmit the monitored temperature signal to the control unit. The control unit is used to provide real-time feedback on the internal temperature of the device based on temperature signals and trigger the adjustment of the light source power. When the monitored temperature exceeds the preset threshold, the control unit automatically reduces the power of the UV light-emitting unit 10 to reduce heat generation, while increasing the speed of the cooling fan 5 and the flow rate of compressed gas to enhance the heat dissipation effect. When the temperature drops below the safe threshold, the control unit automatically restores the power of the UV light-emitting unit 10 and the operating parameters of the cooling fan 5, realizing intelligent temperature control of the device, ensuring stable operation of the device within a suitable temperature range, and extending the service life of the device.

[0026] The implementation process of the fault alarm module specifically includes: The system has preset parameter thresholds. When any of the monitored parameters exceeds the preset range, such as when the vacuum negative pressure value is lower than -0.06MPa, the light source temperature is higher than 90℃, the cooling fan speed is lower than the preset speed, the compressed gas pressure exceeds the range of 0.2-0.8MPa, or the LED light source experiences overcurrent or overvoltage, the system will immediately alert the operator through an audible and visual alarm. At the same time, the automatic protection mechanism of the equipment is triggered, which automatically cuts off the power supply of the UV light-emitting unit 10, stops the light source from working, shuts off the vacuum generator and compressed gas supply, avoids the malfunction from spreading, and prevents equipment damage and product scrapping.

[0027] In one embodiment, it further includes: a light intensity acquisition unit, which is arranged opposite to the light-emitting surface of the UV light-emitting unit 10, for acquiring the UV light intensity signal after irradiating the product to be cured, and converting the UV light intensity signal into a UV voltage signal; The curing progress determination unit is used to calculate the curing progress of the product to be cured based on the UV voltage signal. The reference current generation unit is used to generate a basic reference current based on the maximum and minimum driving current of the high-density LED array and the curing progress. Specifically, the product of the difference between the maximum and minimum driving current and the curing progress is obtained, and the basic reference current is the difference between the maximum driving current and the product. The constant current regulating unit is used to determine the initial stage of curing when the curing progress is within the first range, control the constant current output to start with the basic reference current, and increase the current according to the first current change rate. The constant current adjustment unit is also used to determine the curing progress as the middle stage when it is within the second range, and to control the constant current output to fine-tune the current according to the second current change rate. The constant current regulating unit is also used to determine the curing stage when the curing progress is within the third range, and to control the constant current output to reduce the current according to the third current change rate.

[0028] In this embodiment, the first range, the second range, and the third range can be set to, for example, 0-0.3, 0.3-0.8, and 0.8-1.0.

[0029] In this embodiment, the first current change rate is, for example, 0.08, to ensure that the current rapidly increases the curing efficiency; the second current change rate is, for example, 0.03, to ensure curing uniformity; and the third current change rate is, for example, 0.01, to avoid over-curing and ineffective heat generation.

[0030] The beneficial effects of the above design scheme are as follows: By collecting the UV light intensity signal after irradiating the product to be cured and converting the UV light intensity signal into a UV voltage signal, quantitative feedback of the UV light intensity signal is achieved. This transforms the physical quantity of light intensity into a calculable voltage signal, providing accurate and real-time data support for judging the curing progress. This avoids the blindness of traditional curing relying on experience-based judgment, ensuring that subsequent adjustments have a clear basis. Based on the UV voltage signal, the curing progress of the product to be cured is calculated. Quantifying the curing progress based on the voltage signal breaks the limitation of ambiguity in curing degree, enabling precise matching between LED current adjustment and curing state. This fundamentally solves the problem of insufficient or over-curing, improving product curing consistency. Based on the maximum and minimum driving currents of the high-density LED array, combined with the curing progress, a basic reference current is generated. Specifically, the product of the difference between the maximum and minimum driving currents and the curing progress is obtained. The basic reference current is the difference between the maximum driving current and the product value, achieving linear linkage between current and curing progress. High power is retained in the early stages of curing to ensure efficiency, while power naturally decreases in the later stages to reduce ineffective power generation. This system addresses both curing requirements and heat dissipation pressure, balancing efficiency and heat dissipation. When the curing progress is within the first range, it is defined as the initial curing stage. The constant current output is controlled to start with the base reference current and the current is increased according to the first current change rate to quickly establish effective curing power, shorten the initial curing time, and improve production efficiency. At the same time, the voltage rise is stable to avoid damage to the LED array from sudden current changes. When the curing progress is within the second range, it is defined as the middle curing stage. The constant current output is controlled to fine-tune the current according to the second current change rate to reduce the impact of power fluctuations on curing uniformity, meet the stability requirements of the middle curing reaction, and avoid local curing differences. When the curing progress is within the third range, it is defined as the later curing stage. The constant current output is controlled to reduce the current according to the third current change rate to avoid over-curing and damage to product performance. At the same time, it significantly reduces ineffective heat generation in the later stage, reduces the load on the heat dissipation system, and extends the equipment life. Ultimately, it solves the problems of imbalance between curing and heat dissipation and poor curing uniformity in traditional UV light sources. Furthermore, it improves the stability of equipment operation through precise current control, meeting the high-efficiency and precision requirements of automated production lines.

[0031] The curing progress determination unit includes: The data acquisition unit is used to acquire the temperature signal of the heat sink and receive the coating thickness of the product to be cured input by the user. The penetration calculation unit is used to calculate the UV light penetration depth at time t based on the temperature signal and UV voltage signal of the heat sink. ; ; in, Indicates the standard UV light penetration depth. Indicates the standard curing temperature. This represents the radiator temperature at time t. Indicates the initial UV light intensity during curing. This represents the UV light intensity at time t. Indicates the activation energy of the reaction of the product to be cured. The gas constant is It is a constant, with a value of 2.72; The progress calculation unit incorporates a multi-field coupled nonlinear integral model to calculate the curing progress of the product at time t based on the UV light penetration depth at time t and the coating thickness of the product to be cured. ; ; in, Indicates the preset curing time. This represents the curing decay time constant. Indicates the thickness of the coating on the product to be cured. This indicates integration. Indicates the current solidification time.

[0032] In this embodiment, the preset curing time is the total curing time set by the user according to the product curing requirements.

[0033] In this embodiment, the curing decay time constant is determined by the product material and reflects the characteristic that the curing reaction rate decays over time.

[0034] In this embodiment, the standard curing temperature is typically 25 degrees Celsius.

[0035] In this embodiment, The gas constant is 8.314 J / (mol). K).

[0036] In this embodiment, the heat sink temperature indirectly reflects the surface temperature of the product to be cured.

[0037] The beneficial effects of the above design scheme are as follows: By acquiring the temperature signal of the heat sink and receiving the coating thickness of the product to be cured input by the user, complete data support is provided for subsequent calculations. By integrating multiple parameters such as temperature, real-time light intensity, and activation energy, the dynamic penetration depth at time t is accurately calculated, adapting to actual working conditions such as temperature fluctuations and light intensity attenuation. This solves the problem of the fixed penetration depth being out of touch with the actual scenario, providing core parameters that fit the real working conditions for curing progress calculation. By integrating light intensity attenuation, time attenuation, temperature influence, coating thickness, and dynamic penetration depth, key influencing factors in the curing process are comprehensively covered, avoiding the one-sidedness of judging by a single parameter. It can accurately distinguish the curing differences under different coating thicknesses and temperature environments, fundamentally solving the problem of insufficient or over-curing, improving the consistency of product curing, and ultimately providing a precise basis for the constant current output adjustment of the LED array. It not only adapts to the product requirements of different coating thicknesses and curing materials, but also reduces the ineffective heat generation caused by deviations in progress judgment, taking into account curing quality, heat dissipation efficiency, and production versatility.

[0038] Working principle: When using the self-adsorption UV light source with rapid heat dissipation of this invention, according to... Figures 1-5 This includes the following steps: Step 1: Install the self-adsorption UV light source with rapid heat dissipation at the designated position of the handling robot, complete the connection and debugging of the equipment and external auxiliary equipment, ensure that all components are in normal standby state, quickly connect the negative pressure connector 43 of the vacuum connection component 4 to the external vacuum generator through the negative pressure pipe 42, turn on the main switch of the equipment, and the temperature monitoring module and fault alarm module start simultaneously, automatically complete the initial monitoring and calibration of various parameters, and ensure that the equipment has no initial faults; Step 2: Preset vacuum negative pressure parameters. Based on the material and weight of the product to be adsorbed, set the target negative pressure value of the vacuum negative pressure chamber to ensure stable adsorption force and prevent product deformation. Set UV curing parameters. Based on the product coating thickness and curing requirements, select the emission wavelength of the UV light-emitting unit 10 and adjust the working power of the LED array. Set heat dissipation parameters. Preset the safe temperature threshold of the heat sink 2, set the initial speed of the cooling fan 5 and the initial flow rate of the compressed gas to ensure that the heat dissipation system and the light-emitting unit work together. Set fault alarm parameters and clarify the threshold range of each operating parameter. Step 3: The robotic arm moves the self-adsorption UV light source with rapid heat dissipation to above the product to be processed. The external vacuum generator is started, and the vacuum negative pressure chamber inside the equipment is evacuated through the negative pressure pipe 42, negative pressure connector 43, and negative pressure hole on the connector 41 of the vacuum connection component 4. During the evacuation process, the sealing ring 45 on the connector 41 acts as a seal to prevent air leakage and ensure that the vacuum negative pressure chamber reaches the preset stable negative pressure value within 3-5 seconds. The adsorption force is evenly transferred to the adsorption surface of the front adsorption glass 7 through the negative pressure hole of the vacuum glass 3, avoiding product deformation or detachment due to uneven adsorption force. The front adsorption glass 7 and the rear adsorption glass 6 are set parallel to each other. With the precise movement of the robotic arm, the front adsorption glass 7 is made to adhere to the surface of the product to be adsorbed. The adsorption force generated by the negative pressure is used to firmly fix the product and realize the rapid gripping of the product. At the same time, the NTC thermistor of the temperature monitoring module monitors the temperature of the heat sink 2 in real time and provides initial feedback on the initial operating status of the equipment. The fault alarm module monitors the vacuum negative pressure value simultaneously to ensure that the adsorption process is stable and without abnormalities. Step 4: After the heat dissipation product is adsorbed and positioned, the UV light-emitting unit 10 is immediately activated, with the light-emitting surface facing the vacuum glass 3. The UV light passes through the vacuum glass 3 and the front adsorption glass 7 in sequence and irradiates the surface of the adsorbed product to start the UV curing operation. The drive circuit board maintains the stable light emission of the LED array in real time and has overcurrent and overvoltage protection functions to prevent circuit failure from damaging the light source. The large amount of heat generated when the UV light-emitting unit 10 is working is quickly conducted through the heat sink 2. The cooling fan 5 is started and the heat on the heat sink 2 is discharged to the outside of the equipment through forced convection. Step 5: During the simultaneous UV curing and product handling process, the control unit of the temperature monitoring module receives the temperature signal transmitted by the NTC thermistor in real time and provides real-time feedback on the operating temperature of the heat sink 2 and the UV light-emitting unit 10. When the temperature exceeds the preset threshold, the control unit automatically reduces the power of the UV light-emitting unit 10 to reduce heat generation, while increasing the speed of the cooling fan 5 and the flow rate of compressed gas to enhance the heat dissipation effect. When the temperature drops below the safe threshold, the control unit automatically restores the power of the UV light-emitting unit 10 and the operating parameters of the cooling fan 5 to achieve intelligent temperature control. The fault alarm module monitors various operating parameters in real time, including the negative pressure value of the vacuum chamber, the temperature of the UV light-emitting unit 10, the speed of the cooling fan 5, the pressure of the compressed gas, and the working current and voltage of the LED light source. At the same time, the vacuum connection component 4 continuously maintains the stable negative pressure of the vacuum chamber. If a slight leak occurs, the vacuum generator automatically replenishes the air to ensure stable adsorption force and prevent the product from shifting or falling off during handling and curing. The handling robot moves the equipment and the product along the preset trajectory to achieve translational handling of the product. The UV light-emitting unit 10 continuously outputs UV light to complete the full synchronous curing of the product.

[0039] Step Six: After the product completes the preset UV curing time, the UV emitting unit 10 automatically shuts down, stopping the output of UV light. The heat dissipation unit continues to work for a period of time, using the cooling fan 5 and compressed gas to continuously dissipate heat, reducing the temperature of the UV emitting unit 10 and the heat sink 2 to room temperature. This prevents the equipment from being affected by residual heat accumulation, thus extending its service life and preventing high temperature damage to the cured product. The external vacuum generator is then stopped, and the air extraction channel is closed. At the same time, a small amount of compressed gas is introduced into the vacuum negative pressure chamber through the air circuit control unit to release the negative pressure in the chamber, causing the adsorption force of the front adsorption glass 7 to disappear. The handling robot slightly lifts the equipment, detaching it from the product surface, and places the cured and handled product at the preset work station, completing a single operation cycle. During this process, the temperature monitoring module and fault alarm module continue to work. After confirming that there are no abnormalities in the equipment, it enters the standby state for the next operation. If an abnormality is detected, the alarm and protection mechanism are immediately triggered.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A self-adsorbing UV light source with rapid heat dissipation, comprising a housing (1) and a UV light-emitting unit (10), characterized in that, The UV light-emitting unit (10) is installed at the front opening of the housing (1). A heat sink (2) is installed at the front end of the housing (1). A cooling fan (5) is provided at the rear end of the housing (1). A fan mesh (8) is provided on the outside of the cooling fan (5). A rear adsorption glass (6) is installed on the outside of the front end of the housing (1). The rear adsorption glass (6) is connected to the vacuum connection assembly (4). A vacuum glass (3) is provided at the front end of the vacuum connection assembly (4). A front adsorption glass (7) is installed on the vacuum glass (3). The UV light-emitting unit (10), the heat sink (2), and the cooling fan (5) are all connected to the power cord (9).

2. The self-adsorption UV light source with rapid heat dissipation according to claim 1, characterized in that, The housing (1) includes a rear cover plate (11), side short plates (12), side long plates (13) and a cover (14). There are two sets of side short plates (12) and side long plates (13). The two sets of side long plates (13) are arranged in parallel. Side short plates (12) are installed on the left and right sides of the side long plates (13). The rear cover plate (11) and the cover (14) are installed at the front and rear ends of the side long plates (13) respectively.

3. The self-adsorption UV light source with rapid heat dissipation according to claim 1, characterized in that, The vacuum connection assembly (4) includes a connector (41), a negative pressure pipe (42), a negative pressure connector (43), a sealing groove (44), and a sealing ring (45). The connector (41) is provided with a through hole, and the inlet and outlet ends of the through hole are provided with sealing grooves (44). The sealing ring (45) is embedded in the sealing groove (44). The negative pressure connector (43) is installed on the top of the connector (41). The negative pressure connector (43) communicates with the through hole. The negative pressure pipe (42) is installed on the negative pressure connector (43). The connector (41) is provided with a negative pressure hole.

4. The self-adsorption UV light source with rapid heat dissipation according to claim 1, characterized in that, The front adsorption glass (7) and the rear adsorption glass (6) are arranged in parallel, and together with the vacuum glass (3) and the shell (1) they form a vacuum negative pressure chamber. The material between the front adsorption glass (7) and the rear adsorption glass (6) is borosilicate glass, and a thermally conductive silicone pad is provided at the bottom of the radiator (2).

5. A self-adsorption UV light source with rapid heat dissipation according to claim 1, characterized in that, The UV light-emitting unit (10) includes a light source, a driving circuit board, a heat insulation layer and a light-emitting surface. The light source is installed between the vacuum negative pressure chamber and the shell (1), and its light-emitting surface is set facing the vacuum glass (3), corresponding to the light-transmitting structure of the vacuum glass (3), the front adsorption glass (7) and the rear adsorption glass (6). The light source is a high-density LED array. The driving circuit board integrates a constant current control chip and also has overcurrent and overvoltage protection functions. The heat insulation layer is an aerogel heat insulation pad. The light-emitting surface is encapsulated with a transparent high-temperature resistant material.

6. A self-adsorption UV light source with rapid heat dissipation according to claim 5, characterized in that, Also includes: The light intensity acquisition unit is set opposite to the light-emitting surface of the UV light-emitting unit (10) and is used to acquire the UV light intensity signal after the product to be cured has been irradiated, and convert the UV light intensity signal into a UV voltage signal. The curing progress determination unit is used to calculate the curing progress of the product to be cured based on the UV voltage signal. The reference current generation unit is used to generate a basic reference current based on the maximum and minimum driving current of the high-density LED array and the curing progress. Specifically, the product of the difference between the maximum and minimum driving current and the curing progress is obtained, and the basic reference current is the difference between the maximum driving current and the product. The constant current regulating unit is used to determine the initial stage of curing when the curing progress is within the first range, control the constant current output to start with the basic reference current, and increase the current according to the first current change rate. The constant current adjustment unit is also used to determine the curing progress as the middle stage when it is within the second range, and to control the constant current output to fine-tune the current according to the second current change rate. The constant current regulating unit is also used to determine the curing stage when the curing progress is within the third range, and to control the constant current output to reduce the current according to the third current change rate.

7. A self-adsorption UV light source with rapid heat dissipation according to claim 1, characterized in that, Also includes: The temperature monitoring module is located on the surface of the heat sink (2) and in full contact with the heat sink (2) to monitor the temperature of the heat sink (2) in real time, thereby reflecting the operating temperature of the UV light-emitting unit (10), and controlling the power of the UV light-emitting unit (10) and the operating parameters of the cooling fan (5) according to the temperature monitoring signal. The fault alarm module is electrically connected to the vacuum connection component (4), the UV light emission unit (10), the heat dissipation unit, and the temperature monitoring module, respectively, and is used to monitor various operating parameters of the equipment in real time.

8. A self-adsorption UV light source with rapid heat dissipation according to claim 7, characterized in that, The temperature monitoring module specifically includes: A temperature sensor is used to monitor the temperature of the heat sink (2) in real time, thereby reflecting the operating temperature of the UV light-emitting unit (10), and transmitting the monitored temperature signal to the control unit. The control unit is used to provide real-time feedback on the internal temperature of the device based on the temperature signal, and to trigger the adjustment of the power of the UV light-emitting unit (10) and the operating parameters of the cooling fan (5). When the monitored temperature exceeds the preset threshold, the power of the UV light-emitting unit (10) is automatically reduced to reduce heat generation, while the speed of the cooling fan (5) and the flow rate of compressed gas are increased to enhance the heat dissipation effect. When the temperature drops below the safe threshold, the power of the UV light-emitting unit (10) and the operating parameters of the cooling fan (5) are automatically restored.

9. A self-adsorption UV light source with rapid heat dissipation according to claim 7, characterized in that, The implementation process of the fault alarm module specifically includes: The system has preset parameter thresholds. When any of the monitored parameters exceeds the preset range, it will immediately alert the operator through an audible and visual alarm. At the same time, the automatic protection mechanism of the equipment is triggered, automatically cutting off the power supply of the UV light-emitting unit (10), causing the light source to stop working, and shutting off the vacuum generator and compressed gas supply.

10. A self-adsorption UV light source with rapid heat dissipation according to claim 6, characterized in that, The curing progress determination unit includes: The data acquisition unit is used to acquire the temperature signal of the heat sink and receive the coating thickness of the product to be cured input by the user. The penetration calculation unit is used to calculate the UV light penetration depth at time t based on the temperature signal and UV voltage signal of the heat sink. The progress calculation unit has a built-in multi-field coupled nonlinear integral model, which is used to calculate the curing progress of the product to be cured based on the UV light penetration depth at time t and the coating thickness of the product to be cured.

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