Five-channel built-in IC colorful lamp bead powered by 24V

Abstract

The utility model belongs to the technical field of LED built-in IC colorful lamp beads, and relates to a 24V power supply five-channel built-in IC colorful lamp bead, which comprises a bottom plate, a BT substrate, a light-emitting chip, a voltage reduction and stabilization module, a filter capacitor, a master control IC and a pure gold wire. The BT substrate is arranged on the bottom plate, the main control IC and the light-emitting chip are fixed on the bottom plate by using elargol, the pure gold wire is used for respectively connecting the BT bottom plate, the light-emitting chip, the voltage reduction and stabilization module and the main control IC in a pressure welding manner by using an ultrasonic pressure welding machine, and the voltage reduction and stabilization module is used for stably reducing the input 24V voltage to a working voltage range required by the colorful lamp bead. Normal operation of the fantasy colored lamp beads is ensured, and the service life is prolonged. DC24V power supply is more stable and reliable, and the influence of voltage fluctuation on the performance of the LED chip can be effectively reduced; the working voltage range is wide, the current compensation position distance is increased, the power compensation positions are reduced, installation is convenient, the installation time is greatly saved, and the overall cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED built-in IC magic color lamp beads, and more specifically, to a 24V powered five-channel built-in IC magic color lamp bead. Background Art

[0002] The existing built-in IC magic lamp beads only provide three or four channels of built-in magic lamps powered by DC5V. The built-in IC magic lamp beads with 5V power supply have large voltage drop, large current, and narrow working voltage range in the finished product, which leads to high cost in the finished product. The five-channel built-in IC magic lamp beads with 24V power supply have small voltage drop, small current, and wide working voltage range. The technology related to the five-channel built-in IC magic lamp beads with 24V power supply has become one of the most interesting research areas in the LED built-in IC magic lamp bead packaging industry.

[0003] The existing built-in IC fantasy lamp beads include a conventional bracket, a 5V / 12V power supply IC, glue, pure gold wire, and a light-emitting chip. The IC and the light-emitting chip are fixed to the bracket at a fixed position. The pure gold wire is connected to the light-emitting chip and the bracket by spot welding on the chip PAD. Glue is dripped on the cup mouth of the bracket to cover the IC, the light-emitting chip, and the pure gold wire.

[0004] The existing 5V powered built-in IC fantasy lamp beads only have four channels of RGBW, namely: fantasy plus white light. The DC5V power supply voltage has large current transfer resistance and voltage drop. The lamp beads have a narrow operating voltage range (3.7V-5.5V). In the use of finished products, in order to solve the voltage drop problem, the cost is increased and the labor cost increases. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing 5V powered built-in IC magic lamp beads only have four channels RGBW, and in order to solve the voltage drop problem, the cost is increased, and the labor cost is increased. In view of the above-mentioned defects of the prior art, a 24V powered five-channel built-in IC magic lamp bead is provided, including:

[0006] Base plate, BT substrate, light-emitting chip, buck and voltage stabilizing module, filter capacitor, main control IC, pure gold wire; the BT substrate is arranged on the base plate, the main control IC and the light-emitting chip are fixed on the base plate by using silver glue, the pure gold wire is used to respectively press-weld the BT base plate, the light-emitting chip, the buck and voltage stabilizing module and the main control IC by using an ultrasonic welding machine, and the buck and voltage stabilizing module is used to stably reduce the input 24V voltage to the working voltage range required by the colorful lamp beads to ensure the normal operation of the colorful lamp beads and extend their service life.

[0007] Preferably, the step-down and voltage stabilizing module comprises an input end, a transformer, a rectifier bridge, a filter capacitor, a voltage stabilizing chip and an output end which are electrically connected.

[0008] Preferably, the main control IC includes: one of MW1862DA and MT1815S.

[0009] Preferably, it also includes a power supply module, and the power supply module is used to supply power to the colorful lamp beads.

[0010] Preferably, it also includes a PWM output module for controlling the brightness and color temperature of the colorful lamp beads.

[0011] Preferably, it also includes a signal input and output module for receiving external control signals and converting these signals into instructions that can be recognized by the colorful lamp beads, so as to adjust the color, brightness and color temperature of the colorful lamp beads.

[0012] Preferably, the voltage step-down and voltage stabilization module further includes an overload protection circuit.

[0013] Preferably, the voltage step-down and voltage stabilization module further includes a short-circuit protection circuit.

[0014] Preferably, the overload protection circuit comprises a current sensor, a voltage comparator, a control logic circuit and an actuator which are electrically connected.

[0015] Preferably, the short-circuit protection circuit includes a current detection element, a signal processing element and an execution element which are electrically connected.

[0016] The implementation of the 24V powered five-channel built-in IC fantasy lamp beads of the utility model has the following beneficial effects: the DC24V power supply is more stable and reliable, and can effectively reduce the impact of voltage fluctuations on the performance of LED chips, thereby ensuring the accuracy and stability of CCT dimming; by accurately adjusting the color temperature, a rich variety of lighting effects can be achieved to meet the lighting needs of different scenes; the process packaging process is novel, the operating voltage range is wide, and in the use of finished products, the distance between the current replenishment positions is increased, the power replenishment positions are reduced, and the installation is convenient, which greatly saves installation time and saves overall costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. The utility model will be further described below in combination with the drawings and embodiments. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the utility model's five-channel built-in IC colorful lamp beads with 24V power supply;

[0019] Figure 2 This is a schematic diagram of the structure of the back side of the top cover of the utility model with five channels and built-in IC colorful lamp beads powered by 24V;

[0020] Figure 3 This is a schematic diagram of the five-channel built-in IC colorful lamp bead with 24V power supply of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection of the buck and voltage stabilizing module in the five-channel built-in IC colorful lamp beads of the utility model with 24V power supply;

[0022] Figure 5 This is a five-channel connection diagram of the five-channel built-in IC magic lamp beads of the utility model with 24V power supply;

[0023] Figure 6 This is the system topology diagram of the utility model's five-channel built-in IC fantasy light beads with 24V power supply.

[0024] In the figure, 1-BT substrate, 2-light-emitting chip, 3-step-down voltage regulator module, 4-filter capacitor, 5-main control IC, 6-pure gold wire, 7-PAD_GND, 8-PAD_DIN, 9-PAD_VC, 10-PAD_DOUT, 11-silver glue. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] Figure 1 This is a schematic diagram of the structure of the utility model's five-channel built-in IC colorful lamp beads with 24V power supply; Figure 2 This is a schematic diagram of the structure of the back side of the top cover of the utility model with five channels and built-in IC colorful lamp beads powered by 24V; Figure 3 This is a schematic diagram of the five-channel built-in IC colorful lamp bead with 24V power supply of the utility model. Figure 1-Figure 3 In the 24V powered five-channel built-in IC fantasy lamp beads provided in the first embodiment of the utility model, at least include: a base plate, a BT substrate 1, a light-emitting chip 2, a buck-stabilizing module 3, a filter capacitor 4, a main control IC5, and a pure gold wire 6; the BT substrate 1 is arranged on the base plate, the main control IC5 and the light-emitting chip 2 are fixed on the base plate using silver glue 11, and the pure gold wire 6 is used to respectively press-weld the BT base plate, the light-emitting chip 2, the buck-stabilizing module 3 and the main control IC5 by using an ultrasonic welding machine, and the buck-stabilizing module 3 is used to stably reduce the input 24V voltage to the working voltage range required by the fantasy lamp beads to ensure the normal operation of the fantasy lamp beads and extend their service life.

[0029] in, Figure 2 In the figure, PAD_GND7 indicates the negative pole of the lamp bead power supply, PAD_DIN8 indicates the input port of the data signal, PAD_VC9 indicates the positive pole of the lamp bead power supply, and PAD_DOUT10 indicates the output port of the data signal.

[0030] BT substrate, which is made of glass fiber reinforced unsaturated polyester resin molding compound, has excellent insulation, stability and mechanical strength. It is the basis of the lamp bead, carrying important components such as capacitors, step-down voltage regulator modules, light-emitting chips, etc., to ensure the stable operation of the entire system.

[0031] During the manufacturing process, the main control IC and the light-emitting chip can be fixed to the corresponding positions of the BT substrate using silver glue using a production process. Silver glue has good electrical and thermal conductivity, which can effectively ensure the stable connection between the IC and the light-emitting chip, while improving the heat dissipation efficiency and extending the product life.

[0032] Ultrasonic welding machines can be used to weld pure gold wires to the step-down module, IC, light-emitting chip, and BT substrate. As an excellent conductive material, pure gold wire has the characteristics of low resistance and high reliability, which can ensure the smooth transmission of current in the system. Ultrasonic welding technology can achieve a firm connection between pure gold wires and various components, improving the stability of the entire system.

[0033] Filter capacitors can store electrical energy, balance voltage fluctuations, and ensure that the lamp beads operate stably in complex working environments.

[0034] Silver glue, as the packaging material of lamp beads, has good light transmittance and weather resistance, and can protect the internal light-emitting chips and circuits from the influence of the external environment; and the fine welding of pure gold wires ensures the stable transmission of current in the system, improving the reliability and stability of the product.

[0035] In some optional implementations, the step-down voltage regulator module includes an input terminal, a transformer, a rectifier bridge, a filter capacitor, a voltage regulator chip, and an output terminal that are electrically connected. The transformer is connected to the input terminal, and the input 24V voltage is initially stepped down. The rectifier bridge is connected to the transformer to convert the AC voltage into a DC voltage. The filter capacitor is connected to the rectifier bridge to filter the DC voltage. The voltage regulator chip is connected to the filter capacitor to further adjust the filtered DC voltage and output a stable voltage. The output terminal is connected to the lamp bead to provide the stabilized voltage to the lamp bead. The input terminal is responsible for receiving the 24V voltage input from the power supply. The transformer performs a preliminary step-down of the input 24V voltage and converts it into a lower AC voltage. The rectifier bridge converts the AC voltage output by the transformer into a DC voltage. The filter capacitor filters the DC voltage output by the rectifier bridge to remove clutter and interference. The voltage regulator chip further adjusts the filtered DC voltage through an internal circuit to stabilize it within the operating voltage range required by the lamp bead. The output terminal outputs the stabilized voltage to the lamp bead to ensure its normal operation. The buck regulator module can also effectively filter out clutter and interference in the input voltage, improving the luminous quality and stability of the lamp beads.

[0036] The working principle of the buck voltage regulator module is: when the power supply provides 24V voltage, the transformer first performs preliminary voltage reduction to convert the high voltage into a lower AC voltage. Then, the rectifier bridge converts the AC voltage into a DC voltage, but at this time the DC voltage may contain noise and interference. The function of the filter capacitor is to remove these noise and interference to make the DC voltage purer. Next, the voltage regulator chip finely adjusts the filtered DC voltage through the internal circuit. The voltage regulator chip usually contains circuits such as comparators, amplifiers, and reference voltage sources, which work together to maintain the stability of the output voltage. When the input voltage or load changes, the voltage regulator chip can respond quickly and adjust the output voltage to keep it close to the set value. Finally, the stable voltage adjusted by the voltage regulator chip is supplied to the lamp beads through the output end. In this way, whether it is the fluctuation of the input voltage or the change of the load, it will not have a significant impact on the operation of the lamp beads, thereby ensuring the stable light emission of the lamp beads and extending their service life.

[0037] In some optional implementations, the buck and voltage stabilization module may further include some protection circuits, such as an overload protection circuit, a short circuit protection circuit, etc., to improve the safety and reliability of the entire system.

[0038] The main purpose of the overload protection circuit is to monitor the current and voltage in the circuit. Once the preset safety threshold is exceeded, the power supply can be quickly cut off or the circuit state can be adjusted to prevent the circuit components from being damaged due to overheating or overvoltage. In some optional implementations, the overload protection circuit includes a current sensor, a voltage comparator, a control logic circuit, and an actuator that are electrically connected.

[0039] The current sensor is responsible for real-time monitoring of the current in the circuit. When the current exceeds the set safety threshold, the current sensor will send a signal to trigger subsequent protection actions. The selection of the current sensor needs to be accurately matched according to the rated current and overload threshold of the circuit to ensure that it can issue an alarm at the appropriate time.

[0040] The voltage comparator is responsible for comparing the actual voltage in the circuit with the preset safety voltage value. Once the actual voltage exceeds the safety value, the voltage comparator will also send a signal to inform the control logic circuit that an overload protection operation is required. The accuracy and response speed of the voltage comparator are crucial to the performance of the protection circuit, so it is necessary to select a comparator chip with stable performance and fast response.

[0041] The control logic circuit is the core part of the overload protection circuit. It is responsible for receiving signals from the current sensor and voltage comparator, and making judgments and processing according to the preset protection strategy. The control logic circuit can be implemented by a microcontroller. When an overload signal is received, the control logic circuit will respond quickly, cutting off the power supply or adjusting the circuit state through the actuator to prevent further damage.

[0042] The actuator is the final executor of the overload protection circuit. It can be a relay, switch tube or other device. It is responsible for cutting off the power supply or adjusting the circuit state under the control of the control logic circuit. The action speed and reliability of the actuator directly affect the effect of the overload protection circuit. Therefore, it is necessary to select an actuator with excellent performance and reliable action.

[0043] The working principle of the overload protection circuit is: it adopts a real-time monitoring and rapid response mechanism. When the current or voltage in the circuit exceeds the preset safety threshold, the current sensor and voltage comparator will quickly send a signal to trigger the protection action of the control logic circuit. The control logic circuit makes judgments and processes according to the preset protection strategy, and cuts off the power supply or adjusts the circuit state through the actuator, thereby realizing effective protection of the circuit.

[0044] It is worth noting that the design of the overload protection circuit needs to fully consider the actual application scenarios and needs of the lamps. For example, for occasions where the color temperature and brightness need to be adjusted frequently, the overload protection circuit needs to have a faster response speed and higher sensitivity so that it can cut off the power supply or adjust the circuit status in time when an overload occurs. At the same time, the stability and reliability of the circuit also need to be considered to ensure that the overload protection circuit can maintain stable performance during long-term operation.

[0045] In some optional implementations, the short circuit protection circuit includes a current detection element, a signal processing element, and an execution element electrically connected.

[0046] The main purpose of the short-circuit protection circuit is that when a short-circuit fault occurs in the circuit, it can quickly detect and cut off the fault current to prevent the excessive current from causing irreversible damage to the circuit and equipment. When a short circuit occurs, the current in the circuit will rise sharply, far exceeding the current value during normal operation. If it is not controlled, this huge current will not only damage the components in the circuit, but may also cause serious accidents such as fire.

[0047] The current detection element is responsible for real-time monitoring of current changes in the circuit. Once an abnormal current is detected, the signal will be transmitted to the signal processing element. After receiving the signal, the signal processing element will quickly analyze and process it to determine whether the protection action needs to be triggered. If it is determined that the power supply needs to be cut off, the signal processing element will issue an instruction to the actuator. The actuator is responsible for executing the power cut-off operation. It can be a circuit breaker or relay, which can quickly cut off the circuit after receiving the instruction.

[0048] The working process of the short-circuit protection circuit can be summarized as three steps: detection-judgment-execution. First, the current detection element monitors the current value in the circuit in real time. Once it detects that the current exceeds the preset threshold, the protection mechanism will be triggered. Then, the signal processing element quickly analyzes the detected current signal to determine whether there is a short-circuit fault. If a short-circuit fault is confirmed, the signal processing element will send a command to the actuator to cut off the power supply. Finally, after receiving the command, the actuator quickly cuts off the circuit to prevent the short-circuit current from damaging the equipment and system.

[0049] It is worth noting that when designing a short-circuit protection circuit, its sensitivity and reliability need to be fully considered. Sensitivity refers to the speed at which the circuit responds to a short-circuit fault. Only a sufficiently sensitive circuit can quickly cut off the power supply when a short circuit occurs to prevent the fault from expanding. Reliability refers to the stability of the circuit during normal operation. A reliable short-circuit protection circuit can operate stably for a long time without false alarms or missed faults.

[0050] During the specific implementation, the main control IC includes but is not limited to one of MW1862DA and MT1815S. In this embodiment, the main control IC is selected as MW1862DA. MW1862DA is a three-channel LED driver control chip with single-line transmission, using a single-line return-to-zero code SID data protocol. The default output current of the OUT R / G / B port is 12mA. The characteristics of MW1862DA are: VDD input voltage: 3.5V~5.5V; OUT R / G / B constant current value: 12mA; OUT R / G / B power-on state: default off; OUT R / G / B port withstand voltage: 17V; OUT R / G / B output grayscale level: 256 levels; using a single-line return-to-zero code SID data protocol; synchronous refresh of the same frame display data; data serial cascade transmission, strong anti-interference ability; signal transmission rate: 800Kbps; dedicated built-in IC for integrated driving of fantasy light sources; can support 5050, 3535 and other lamp drive integrated packaging. The MT1815S chip has excellent processing power and efficient computing speed, and can achieve high-speed data processing and transmission, thus meeting the needs of various complex application scenarios. Whether it is image processing, voice recognition or big data analysis, the MT1815S chip can easily cope with it and show excellent performance. The MT1815S chip also has extremely low power consumption and excellent heat dissipation performance. It uses advanced energy-saving technology to effectively reduce power consumption and extend the battery life of the device. At the same time, the excellent heat dissipation performance ensures the stability and reliability of the chip when running under high load, avoiding performance degradation or damage caused by overheating. The MT1815S chip is also highly scalable and flexible. It supports multiple interfaces and protocols, and can seamlessly connect and communicate with other devices. At the same time, users can also carry out customized development according to actual needs to achieve richer functions and applications. This high degree of scalability and flexibility enables the MT1815S chip to adapt to the needs of different industries and scenarios, providing users with more convenient and efficient solutions.

[0051] The utility model provides a 24V powered five-channel built-in IC magic light bead, which also includes a power supply module, which is used to supply power to the magic light bead.

[0052] In some optional implementations, the utility model 24V powered five-channel built-in IC magic color lamp beads also includes a PWM output module for controlling the brightness and color temperature of the magic color lamp beads. By adjusting the duty cycle of the PWM signal, the brightness of the lamp beads can be accurately controlled. At the same time, through different PWM signal combinations, continuous adjustment of the color temperature can also be achieved to meet the lighting needs in different scenes.

[0053] The PWM output module can include a microcontroller, a PWM signal generator, a drive circuit, and an output port. As the core of the PWM output module, the microcontroller is responsible for receiving control signals from the outside and generating corresponding PWM signals according to a preset algorithm. The PWM signal generator generates a PWM signal with a specific duty cycle according to the instructions of the microcontroller. The drive circuit is responsible for converting the PWM signal into a current signal that can drive the lamp bead to work. Finally, the output port transmits the current signal output by the drive circuit to the lamp bead to control the lamp bead.

[0054] The microcontroller communicates with the PWM signal generator through the internal bus and transmits the control instructions to the PWM signal generator. The PWM signal generator generates a PWM signal according to the received instructions and converts the PWM signal into a current signal through the drive circuit. Finally, the current signal output by the drive circuit is connected to the lamp bead through the output port to adjust the brightness and color temperature of the lamp bead.

[0055] The working principle of the PWM output module is: when the external control signal is input to the microcontroller, the microcontroller calculates the required PWM signal parameters, including duty cycle and frequency, according to the preset algorithm. Then, the microcontroller sends these parameters to the PWM signal generator. According to the received parameters, the PWM signal generator generates a PWM signal with a specific duty cycle through internal circuit elements such as counters, comparators and registers. This PWM signal is a periodic square wave signal, and the time ratio of its high level and low level determines the brightness of the lamp bead. The larger the duty cycle, the higher the brightness of the lamp bead; the smaller the duty cycle, the lower the brightness of the lamp bead.

[0056] Next, the PWM signal is transmitted to the drive circuit. The main function of the drive circuit is to convert the PWM signal into a current signal that can drive the lamp bead to work. The drive circuit includes a power amplifier and a current feedback circuit. The power amplifier can increase the driving ability of the PWM signal so that it can drive the lamp bead to emit light normally. The current feedback circuit is used to monitor the size of the output current to ensure that the lamp bead operates within a safe working range.

[0057] Finally, the current signal processed by the driving circuit is transmitted to the lamp bead through the output port. The lamp bead adjusts the brightness and color temperature according to the size and change of the received current signal. Since the duty cycle of the PWM signal can be precisely controlled, the brightness of the lamp bead can be smoothly adjusted. At the same time, by changing the combination of PWM signals of different channels, the color temperature can be flexibly changed.

[0058] In some optional implementations, the utility model 24V powered five-channel built-in IC fantasy lamp beads also include a signal input and output module for receiving external control signals and converting these signals into instructions that can be recognized by the fantasy lamp beads, thereby adjusting the color, brightness and color temperature of the fantasy lamp beads. At the same time, the signal input and output module also has the function of signal output, which can monitor the working status of the lamp beads in real time and feed back relevant information to the control system to ensure the stable operation of the entire lighting system.

[0059] In a specific implementation, the signal input and output module includes a signal receiving unit, a signal processing unit, a driving circuit, a feedback circuit and a communication interface.

[0060] The signal receiving unit is responsible for receiving signals from external controllers, such as DMX512 signals, RS485 signals, etc. The signal receiving unit has the characteristics of high sensitivity and low noise, and can accurately capture and analyze control signals.

[0061] The signal processing unit decodes and processes the received signal and converts it into control instructions suitable for the lamp bead driving circuit. The signal processing unit can be implemented using DSP digital signal processing to ensure the accuracy and stability of the signal.

[0062] The driver circuit drives the light-emitting elements of the lamp beads to adjust the color, brightness and color temperature according to the control instructions output by the processing unit. The driver circuit is efficient, stable and reliable, and can meet the requirements of long-term and high-load work.

[0063] The feedback circuit monitors the working status of the lamp beads in real time, such as current, voltage, temperature and other parameters, and feeds this information back to the control system. The existence of the feedback circuit enables the system to detect and handle abnormal situations in a timely manner, ensuring the safe and stable operation of the lamp beads.

[0064] The communication interface realizes the communication connection between the module and the external controller, including the interface circuit and the use of communication protocols such as TCP and TP. The selection and design of the communication interface directly affects the communication speed and stability of the system.

[0065] The signal input and output module is connected to the external controller and the lamp bead driving circuit. Specifically, the communication interface of the signal input and output module is connected to the external controller to realize the input and output of the control signal; at the same time, the driving circuit of the signal input and output module is connected to the lamp bead driving circuit to realize the precise control of the lamp bead. This connection method ensures the accurate transmission of information and the effective execution of control instructions.

[0066] The working principle of the signal input and output module is:

[0067] Signal reception and decoding: The signal input and output module first receives control signals from the external controller through the signal receiving unit. After decoding, these signals are converted into instructions that the module can recognize.

[0068] Control instruction generation and execution: The decoded control instruction is sent to the processing unit for further processing. The processing unit generates corresponding control signals according to the instruction content, and drives the lamp bead light-emitting element through the driving circuit to adjust the color, brightness and color temperature.

[0069] Working status feedback: During the working process of the lamp bead, the feedback circuit monitors its working status in real time and feeds back relevant information to the control system. This information helps the control system understand the real-time status of the lamp bead, so as to perform more precise control.

[0070] Communication and coordination: Real-time communication is maintained with the external controller through the communication interface to ensure that the control system can timely understand and respond to changes in the working status of the lamp beads. At the same time, the various components inside the module also maintain close coordination and cooperation to jointly achieve precise control of the lighting system.

[0071] Figure 4 This is a schematic diagram of the connection of the buck and voltage regulator module in the five-channel built-in IC colorful lamp beads with 24V power supply of the utility model. Figure 4 As shown, a buck regulator module is added to the VIN input end, one end of the buck regulator module is connected to the filter capacitor C1, and the other end of the buck regulator module is connected to the filter capacitor C2. The built-in IC power supply voltage range is 3.7V-5.5V. After adding the buck module, the built-in IC power supply voltage is kept stable at 5.0V, and the VIN end voltage of 8V-24V can maintain the normal operation of the lamp beads, so that the lamp beads can operate in a wider voltage range.

[0072] Figure 5 This is a five-channel connection diagram of the five-channel built-in IC magic lamp beads of the utility model with 24V power supply. Figure 5As shown, the utility model has a five-channel built-in IC fantasy lamp bead powered by 24V, which realizes the CCT dimming effect of five channels R (red), G (green), B (blue), W (white), and WW (warm white). CCT, or Correlated Color Temperature, is a standard for measuring the color properties of a light source. It is expressed in Kelvin temperature (K) and describes the warm and cold feeling of the color of the light emitted by the light source. For example, a color temperature of about 3000K is called warm yellow light, which gives people a warm and comfortable feeling; while a color temperature of about 6000K presents a cold white light, which appears bright and refreshing. Therefore, by adjusting CCT, the utility model can achieve the change of the color temperature of the light source, thereby creating different lighting atmospheres. The main control IC is integrated inside the lamp bead, which can receive signals from the outside and adjust the color temperature output of the LED chip (LED1-LED5) according to the signal command. At the same time, the five-channel design allows each lamp bead to be controlled independently, thereby achieving a richer and more delicate lighting effect.

[0073] Figure 6 This is the system topology diagram of the utility model with 24V power supply and five channels with built-in IC colorful lamp beads. Figure 6 As shown, data DATA is input from Din of the first lamp bead and output from Dout, and then input from Din of the second lamp bead and output from Dout, thus being connected in series.

[0074] Through the design of the above embodiments, the utility model has the following beneficial effects: the DC24V power supply is more stable and reliable, and can effectively reduce the influence of voltage fluctuation on the performance of LED chips, thereby ensuring the accuracy and stability of CCT dimming; by accurately adjusting the color temperature, a variety of lighting effects can be achieved to meet the lighting needs of different scenes; the process packaging process is novel, the working voltage range is wide, and in the use of finished products, the distance between the current replenishment positions is increased, the power replenishment positions are reduced, and the installation is convenient, which greatly saves installation time and saves overall costs.

[0075] The present invention is described according to specific embodiments, but those skilled in the art should understand that various changes and equivalent substitutions can be made without departing from the scope of the present invention. In addition, in order to adapt to specific occasions of the present invention technology, many modifications can be made to the present invention without departing from its protection scope. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all embodiments that fall within the scope of protection of the claims.

Claims

1. A 24V powered five-channel built-in IC magic lamp bead, characterized in that: include: Base plate, BT substrate, light-emitting chip, buck regulator module, filter capacitor, main control IC, pure gold wire; The BT substrate is arranged on the bottom plate, the main control IC and the light-emitting chip are fixed on the bottom plate by using silver glue, and the pure gold wire is used to respectively press-weld the BT bottom plate, the light-emitting chip, the buck-voltage stabilizing module and the main control IC by using an ultrasonic welding machine. The buck-voltage stabilizing module is used to stably reduce the input 24V voltage to the working voltage range required by the colorful lamp beads to ensure the normal operation of the colorful lamp beads and extend their service life.

2. The 24V powered five-channel built-in IC colorful lamp bead according to claim 1, characterized in that: The step-down and voltage stabilizing module comprises an input end, a transformer, a rectifier bridge, a filter capacitor, a voltage stabilizing chip and an output end which are electrically connected.

3. The 24V powered five-channel built-in IC colorful lamp bead according to claim 1, characterized in that: The main control IC includes: one of MW1862DA and MT1815S.

4. The 24V powered five-channel built-in IC colorful lamp bead according to claim 1, characterized in that: It also includes a power supply module, which is used to supply power to the colorful lamp beads.

5. The 24V powered five-channel built-in IC colorful lamp bead according to claim 1, characterized in that: It also includes a PWM output module for controlling the brightness and color temperature of the colorful lamp beads.

6. The 24V powered five-channel built-in IC colorful lamp bead according to claim 1, characterized in that: It also includes a signal input and output module for receiving external control signals and converting these signals into instructions that can be recognized by the colorful lamp beads, so as to adjust the color, brightness and color temperature of the colorful lamp beads.

7. The 24V powered five-channel built-in IC colorful lamp bead according to claim 2, characterized in that: The step-down and voltage stabilization module also includes an overload protection circuit.

8. The 24V powered five-channel built-in IC colorful lamp bead according to claim 2, characterized in that: The voltage step-down and voltage stabilization module also includes a short-circuit protection circuit.

9. The 24V powered five-channel built-in IC colorful lamp bead according to claim 7, characterized in that: The overload protection circuit includes a current sensor, a voltage comparator, a control logic circuit and an actuator which are electrically connected.

10. The 24V powered five-channel built-in IC colorful lamp bead according to claim 8, characterized in that: The short circuit protection circuit includes a current detection element, a signal processing element and an execution element which are electrically connected.

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