ODM/OEM services of various air and water disinfection modules and overall UV LED(UVA.UVB.UVC.UVV) solution provider.

LED Lamp Bead Connection Form, Common Failure Solution of LED Light Emitting Modules

LED lamp beads Common forms of connection 1. Overall connection form (1) Simple series forms Generally and simple series connection forms of LED1 LEDN are connected at the beginning and tail, and the current flowing during LED is equal. For LEDs of the same-specifications and batches, although the voltage on a single LED may have a small difference, because the LED is a current device, it can ensure that their luminous intensity is consistent, trapped this, simple series forms of formation forms LED has the characteristics of simple circuit and convenient connection. However, due to the use of series, when one of the LEDs occurs, the entire LED lights will be extinguished, which will affect the reliability of use. (2) The series forms of the two -pole diode with the combination of Qina diode are connected to an improved series connection form of a Qiner diode in parallel. In this connection method, the breakdown voltage of each Zina diode is higher than the working voltage of the LED. When working normally, because the Qina diode VD1 VDN, the current is mainly flowing through the LED1 LEDN. When the damaged LED in the LED string is caused In addition to the fault LED, other LEDs still have currents through the current and glow. This connection method is greatly improved in terms of reliability comparison in terms of reliability. Overall parallel form (1) Simple parallel form Simple and connected LED1 LEDN head and tail parallel, each LED is equal to each LED. It can be seen from the characteristics of LED. It belongs to a current device, and the slight changes in the voltage added to the LED will cause a large change in the current. In addition, due to the limitations of LED manufacturing technology, even the same batch of LEDs, the difference in performance is inherent, so when LED1 LEDN works, whoever spends each LED is not equal. It can be seen that the uneven distribution of each LED current may cause the LED life of the current to be too large, and even burn out. Although this connection method is relatively simple. But the reliability is not high, especially for applications in the case of large number of LEDs. (2) The parallel form of independent matching is aimed at the reliability of simple parallelism. The parallel form of independent matching is a good way. Each LED in this way has currently adjustable current (the drive Voutput terminal is L1 Ln, respectively), and ensure that the current flowing through each LED is within the range of its requirements, with good driving effects, a single LED, a single LED Protect complete, does not affect other LED work when faults, and can match the characteristics of LEDs with large differences. The main problem of existence is: the composition of the entire driver circuit is relatively complicated, the cost of the device is high, and the volume of occupation is too much. It is not suitable for the large number of LED circuits. Mixed -connected forms are proposed by integrating the respective advantages of series and parallel forms. The main forms are the following two. (1) When the mixed formation forms are first, the number of LED applications is large, and the simple series or parallel connection is unrealistic. The former requires the former to request a high voltage of the drive (N times of a single LED voltage VF). To fall the drive with a large current (N times of a single LED current IF). This brings difficulties to the design and manufacturing of the driver, and also involves the structural problems and overall efficiency of the drive circuit. The working voltage of the number of LEDs in series and the working voltage of a single LED VF determines the output voltage of the driving force; The NVF value determines the output power of the drive. Therefore, the mixing method after mixing is mainly to ensure that there is a certain reliability (the LED fault in each string only affects the normal light of the string), and the matching of the drive circuit ), It improves reliability than simple series forms. The entire circuit has the characteristics of relatively simple structure, convenient connection, and high efficiency. It is suitable for applications with a large number of LEDs. (2) Several LEDs that are mixed with a string of collaboration first and then skewers are first and then stringed. Since LED1-N LEDM-N is first connected to connect, which improves the reliability of each group of LEDs, but this is important. For this reason, you can choose the working voltage and current as much as possible as a parallel group by pairing, or to solve the small current resistance of each LED. The other characteristics and existing problems of this mixed form form are similar to. (3) Cross array forms of cross arrays are mainly to improve the reliability of LED work and reduce the failure rate. The main form of composition is: each series of 3 LEDs as a group, and the VA, VB, and VC output terminals that are connected to the drive output of the drive. When the 3 LEDs of a series are normal, the 3 LEDs are glowing at the same time; once one or two LEDs are invalidated, it can ensure that at least one LED work normally. In this way, it can greatly improve the reliability of each group of LD light, and it can improve the overall reliability of the entire LED glow. 2. Different connections in different connections have their own characteristics, and the requirements for the driver are different, especially when a single LED fails to fail the circuit work, the overall lighting reliability, and ensure that the overall LED can be as much as possible to be as possible as possible. It is particularly important to continue the ability of work and reduce the overall LED's failure efficiency, etc. All in all, LED group applications are an important way for LED actual applications. Different LED connections are essential for large -scale LEDs and design requirements for driving circuits. Therefore, in the combination of actual circuits, the correct selection of the compatible LED connection method is of positive significance for improving the effect of its luminous effect, the reliability of the work, the convenience of the driver design and manufacturing, and the efficiency of the entire circuit. LED luminous module failure and solution phenomenon: all LED flashing; Question: poor contact; solution: re -fixation or insertion; phenomenon: LED dim; Question: 1. LED polarity is reversed; 2. LED is too long to be too long ; 3. The switching power supply is inconsistent with the LED voltage mark; Light; Question: 1. Whether the direction of the insertion is correct; 2. Whether the power output wiring is correct; 3. The power cord plugs and reverse; the solution: 1. Disassemble , Black wires are connected to negative poles; 3. Find out part of the inverse lines; re -connect; phenomenon: All LEDs are not bright; Question: 1. There is no voltage output of the switching power supply; 2. Whether the output wiring of the switching power supply is correct; solution: 1 , Test -to -power access switching power input terminal; 2. Power wiring positive and negative poles correct;

LED Lamp Bead Connection Form, Common Failure Solution of LED Light Emitting Modules 1

Author: Tianhui-Air Disinfection

Author: Tianhui-UV Led manufacturers

Author: Tianhui-UV water disinfection

Author: Tianhui-UV LED Solution

Author: Tianhui-UV Led diode

Author: Tianhui-UV Led diodes manufacturers

Author: Tianhui-UV Led module

Author: Tianhui-UV LED Printing System

Author: Tianhui-UV LED mosquito trap

GET IN TOUCH WITH Us
recommended articles
Projects Info Center Blog
[UVLED Lamp Beads 2] UVLED Lamp Beads of UVLED Cured Light Sources Common Connection Methods
[UVLED Lamp Beads 2] UVLED Lamp Beads of UVLED Cured Light Sources Common Connection Methods
Due to the light power of a single UVLED lamp bead, or in order to meet the needs of market differentiation, several UVLEDs need to be combined in a certain way (such as UVLED face light sources, UVLED wire light sources, etc. Equipment), and give a suitable driving solution. This article introduces the connection method of UVLED. Connecting connection method: As shown in Figure 1, the connection connection is connected to the end and end of each UVLED lamp bead. According to the law of KCL, the current flowing through the UVLED pass is exactly the same. It is worth noting that the number of lamp beads connected in series should be evaluated according to the voltage capacity of the power supply source. Connecting connection method: As shown in Figure 2, the characteristics of the connection connection are that each UVLED is connected in parallel according to the same polarity. According to the KVL law, it has the same working voltage. same. The mixed mode is shown in Figure 3. The mixing mode is to implement the series and parallel modes at the same time. First connect several UVLED lamp beads, and then connect the first tank of the lamp beads in parallel connection. This connection method has the characteristics of series and parallel connection at the same time. In practical applications, there are usually a variety of connection combinations. The power supply method and cost -effectiveness of the UVLED light source should evaluate the connection method of UVLED. Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap
[Lami] Tianhuiuvled Makes the Fixing of Optical Lenses Easier
[Lami] Tianhuiuvled Makes the Fixing of Optical Lenses Easier
The fixing of lens glue needs to be used in the optical industry with UVLED curing light sources. At present, the glue lens is generally combined with two to three lenses. The fixation of the lens is bonded using UV glue, and then the UVLED curing light source is irradiated to complete the curing. 镜片涂上UV胶水之后在UVLED光固化设备的高強度紫外线光照射后产生活性自由基或离子基从而引发聚合交联和接枝反应使UV胶在数秒内(不等) Converted from liquid to solid state. At this time, the lens can be firmly fixed in a position that needs to be fixed. The lens glue lens glue is made of two single -sheet lenses through the glue. The performance of the compound color (white light) imaging is much better than the single lens performance. The color of the coloring differential lens is combined with two different lenses of the materials, which corrects the color of the glass. The glue currently used in lens glue is mainly UV glue, and it needs to be irradiated through the UVLED curing light source to complete the solidification. The even more trusted UVLED curing light source manufacturer Tianhui Technology is a professional UVLED curing light source manufacturer. It uses the most leading LED lighting technology and optimized heat dissipation design. It is committed to providing customers with stable and efficient products. Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap
Uvled UVLED Light Source Equipment Evaluation Indicator
Uvled UVLED Light Source Equipment Evaluation Indicator
Today, UVLED irradiation and applications are becoming more and more extensive. Different companies have different design concepts and design methods. How to evaluate the quality of a UVLED irradiation device, we think there are mainly the following indicators: 1> The conversion efficiency of electricity and light is the conversion efficiency of electricity and light. Look at the ratio between our equipment consumed and the effective power of the light source output, the LED is the energy -saving light source, the higher the ratio, the higher the efficiency of the electricity power conversion. Electric large, low electricity conversion efficiency. 2> The uniformity of the distribution of light spots, uniformity refers to the difference in the strength of each point in the range of the valid light spots. The smaller the difference, the better the uniformity. 3> The life of the light source, the LED life is relatively long, but in practical applications, various design and environmental factors may destroy the light source, the longer the life span, the more reasonable the design of the device design. 4> The efficiency of heat dissipation and the uniformity of heat dissipation, because many lamp beads gathered together, which will emit a lot of heat. If the heat can not be distributed in time, it will have a fatal effect on the equipment and products. 3 methods: heat sink and water cooling. 5> The stability and reliability of the circuit control system. If this part is not done well, those with light may often fail, affect efficiency, and may destroy the light source, and even cause the terrible consequences of the fire. Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap
TFT-LCD UV_LED Curing Machine Is Very Suitable
TFT-LCD UV_LED Curing Machine Is Very Suitable
TFT-LCD is the most common electronic use settings on the market. Any electrical products are almost inseparable. In recent years, the number used in recent years has also increased. The UV_LED technology currently used in LCD manufacturing mainly has the following categories: most of the currently use mercury lamps on the market for solidification, and the disadvantages of mercury lamps are cured. The smart UV curing machine developed by Tianhui can greatly improve the product technology And production efficiency. At present, the lighting area of the light source is mostly changed according to the screen size, and the best irradiation effect has been achieved. The reliable optical elements use simulation and many years of research and development experience with a stable optical system. UV_ facial light source uses high -power imported lamp beads, and the divergent angle is 120 rigorous lamp beads to achieve the best uniformity. The wavelength can be 365nm, 385nm, 395nm, 405nm, etc. Can be used with semi -automatic and automatic production lines. Number of irradiation heads: 2 ambient temperature and humidity: -20 C-60 C relative ambient humidity: 20%-80%external control: pedals, external buttons, PLC, etc.: Alarm temperature setting, setting, alarm temperature setting, Power settings, current alarm, internal and external operation switching, sensor settings (optional) real -time temperature query, automatic temperature stop equipment, current abnormal response, emergency stop processing. This product is simple to operate without any maintenance cost. Uninterrupted work. TIANHUI has obtained dual certification of national high -tech enterprises and Zhuhai high -tech enterprises. Patent UVLED light source curing system. Adopting advanced intelligent touch technology and driving solutions can make the UVLED light source system more simple and easy to use. Professional heat dissipation technology guarantees the stable and reliable equipment of the equipment. The UVLED dot light sources, UVLED line light sources, UVLED face light sources, UVLED oven, UVLED tunnel furnaces have been widely used in the fields of glue hardening, ink dry, light oil and other fields. Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap
[LCD Industry] Tianhuiuvled Solidification Machine Helps the Development of the LCD Industry
[LCD Industry] Tianhuiuvled Solidification Machine Helps the Development of the LCD Industry
TIANHUIUVLED solid machine also has many application scenarios in the LCD industry. Among them, there are mainly the following four application points. Now let Tianhui take you one by one to understand: 1. During the LCD production process, the purpose of the light carvings is according to product design requirements. , Apply light glue on the ITO conductive glass, and perform ultraviolet light exposure, that is, selective irradiation, which chemically reacts the photoresist in the optical part of the light, which changes the solubility of this part of the film in the developed solution. Then use the protective effect of photoresal glue to selectively chemically corrode the ITO conductive layer, so as to obtain a graphic that completely corresponds to the mask on the ITO conductive glass. Second, UV LED modification (surface quality change) is currently used in the production process of LCD display STN, which is mainly used in membrane treatment technology. It is very effective for improving the tightness between the membrane. Plastic membrane layer, TOP coating and PI coating, etc. Third, UV LED's solidification of LCD sealing and blocking glue. The empty liquid crystal box that does not irrigate the liquid crystal must be fixed. When using a sealing rubber, the solidification process conditions should be made reasonably according to the performance of the UV glue used to avoid solidification with excessive ultraviolet light to prevent adverse effects on LCD. Because the decomposition of UV light on LCD materials will increase the power consumption current of the device. The UV curing machine is added to the resin in a special formula. After the UV coatings radiate through the ultraviolet radiation, the chemical reaction is generated after attracting high -intensity ultraviolet light in the UV -optical curing equipment. Sending a free ionic or ion, these free groups or ions with double bonds in the premature or unsaturated monomer of the ionic group have a cross -linking response to form a single group, which causes aggregation, cross -linking, and branches. In a few seconds (no), from liquid state to solid state. This change process is called UV curing, but this process is not over, and there is a post -curing process. Therefore, the quality of the product after the test must be performed. Fourth, UV LED cleaning UVLED light cleaning technology is to use the optical oxidation effect of organic compounds to remove organic substances that are attached to the surface of the material. UVLED emits ultraviolet light in a special band, which reacts with the optical agent inside the organic compound. Therefore, if you want to use this process, you must choose the correct UVLED spectrum energy and the appropriate optical agent material. TIANHUI can provide sample machines for free testing with customers, ensuring that customers have zero investment in the early stage. TIANHUI has obtained dual certification of national high -tech enterprises and Zhuhai high -tech enterprises. Patent UVLED light source curing system. Adopting advanced intelligent touch technology and driving solutions can make the UVLED light source system more simple and easy to use. Professional heat dissipation technology guarantees the stable and reliable equipment of the equipment. The UVLED dot light sources, UVLED line light sources, UVLED face light sources, UVLED oven, UVLED tunnel furnaces have been widely used in the fields of glue hardening, ink dry, light oil and other fields. If you have the needs or questions of UVLED solidification, you are welcome to get in touch with our Tianhui, we will be good at all! Tianhui looks forward to meeting you! Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap
What Are the Two Parts of the LED Light Source Module
What Are the Two Parts of the LED Light Source Module
The LED light source module is divided into two parts, one is a variety of LED screens specifically for outdoor, mainly used for display and backlight; the other is specifically used for LED lighting classes. Here we mainly talk about LED light source modules. The light source modules used for LED lighting are divided into two parts: DC module and AC module. DC module is Direct Current English abbreviation, AC module is to exchange Alternating Current English abbreviation. Different modules are different from the lamps. The DC modules are divided into constant current modules and constant voltage modules. They need to be applied to the lamps together with the driver. The AC module is different. Municipal Electric Application on Lantern. The constant stream module, that is, the module board current is constant, the voltage can be adjusted appropriately. The constant voltage module is the fixed voltage of the module board, and the current can be adjusted at will. At present, 12V, 24V, and 48V are more common. The AC module already has its own power supply system, which can be connected directly to the municipal electricity. Different modules are applied to different lamps. The constant stream module is mostly used on fixed and separately used lamps; constant pressure modules are mostly used for combinations, infinite stitching lamps; AC modules can use various lamps, focusing on Cost consideration. The AC module is directly connected to the market. Many users are worried about safety and do not dare to use it. In fact, as long as the structure is processed, it is very safe to use the lens or colloid to protect the high voltage part and not let people contact With the improvement of technology, this aspect can be well avoided; and because the DC module has been driven, it is low -voltage electricity, so the safety performance is relatively strong. However, after the driver is added, the cost will increase the cost. , The lamp body will change. Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap
Features and Development of UV LED Light Sources
Features and Development of UV LED Light Sources
UV LED light source, which is the abbreviation of ultraviolet light emitting diode. From the perspective of human health and environmental impact, we can divide the purple light according to the wavelength of the wavelength: UV (purple light): visible light purple light (400-420nm) ) UVA (315 400nm), also known as long wave purple light or "black light". .. UV LED light sources, that is, the abbreviation of ultraviolet light emitting diode. From the perspective of human health and environmental impact, we can divide the purple light according to the wavelength. 400-420nm) UVA (315 400nm), also known as long wave purple or "black light". UVB (280 315nm), also known as Middle waves purple light. UVC (200 280nm), also known as short -wave purple light or sterilization purple light. UVD: Vacuum UV (100-200nm) Sunlight contains UVA, UVB, and UVC's ultraviolet light in three bands, but due to the absorption of ozone layers in the air, 99%of the UV light on the ground is in the UVA band in the UVA band. UV LED generally refers to LEDs below 400nm in the center of light, but sometimes it is called near ultraviolet LED when the glowing wave is greater than 380nm, and when it is shorter than 300nm. UV LED (UV LED) is mainly used in the fields of biomedical, anti -counterfeiting identification, purification (water, air, etc.), computer data storage and military. And with the development of technology, new applications will continue to appear to replace the original technology and products. UV LEDs have a broad market application prospect. For example, UV LED phototherapy instruments are very popular medical devices in the future, but the current technology is still in the current in the future. Growth period. UV LED is receiving widespread attention from lighting equipment manufacturers and LCD display manufacturers. Because by using ultraviolet light and converting ultraviolet light into red, green, and blue fluorescent materials, it is possible to achieve a white LED with strong color reproduction. At present, most of the commercially available white LEDs use blue LEDs and fluorescent material materials that convert blue light into yellow light. The red light components are weak. When it is illuminating the white light on the red material, it will show a weak orange. If you want to use it for a backlight, you have to find a way on the color filter. But if it is ultraviolet LED, you can solve these problems. However, because the light -emitting efficiency of ultraviolet LED is about half lower than that of blue LED products, the brightness has become a major topic of ultraviolet LED. Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap
no data
one of the most professional UV LED suppliers in China
Contact Us

+86-0756-6986060

my@thuvled.com

 +86 13018495990

my@thuvled.com

+86-0756-86743190


You can find  us here
No 2207B, Vanke Yingxin Building, No.66 Shihua West Road, Xiangzhou District, Zhuhai, Guangdong, China. 
Copyright © 2022 Zhuhai Tianhui Electronic Co., Ltd. -www.tianhui-led.com |Sitemap
chat online