High-power lens lamp strip
By using a high-power lens light strip design, increasing the current to 300mA and supporting A/B dual-line parallel control of the DMX512 controller, the problem of insufficient brightness in existing lens light strips is solved, achieving high brightness and efficient lighting effects.
Patent Information
- Application Number
- CN202520403402.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing lens light strips have low output current, resulting in low brightness, which cannot meet the lighting needs of high-rise buildings and other places.
It adopts a high-power lens light strip design, including a control chip U1, a chip power supply resistor R1, a chip filter capacitor C1, a power supply filter capacitor C2, and a parallel LED light string. By increasing the current to 300mA, it supports dual-line parallel control of the DMX512 controller A/B, and increases the current to improve brightness.
It significantly improves the power and brightness of the lens light strip, which can meet the lighting needs of high-rise buildings and other places, extend the project life and reduce construction and maintenance costs.
Smart Images
Figure CN223840194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to lighting devices, and more particularly to a high-power lens light strip. Background Technology
[0002] Lens light strips are an innovative lighting product that combines lens technology with LED light strips. Through the refraction, reflection, and diffusion of light by the lens, precise control and optimized distribution of light are achieved.
[0003] Existing lens light strips have low brightness due to their low output current.
[0004] Therefore, how to increase the power of the lens light strip to improve brightness is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0005] To address the problems in the existing technology, this utility model provides a high-power lens light strip.
[0006] This utility model provides a high-power lens light strip, including at least two sets of light-emitting units. Each light-emitting unit includes a control chip U1, a chip power supply resistor R1, a chip filter capacitor C1, a power supply filter capacitor C2, and at least two parallel LED strings. The anode of the parallel LED strings is connected to the input voltage, and the cathode of the parallel LED strings is connected to the output port of the control chip U1. One output port of the control chip U1 corresponds to one LED string. One end of the chip power supply resistor R1 is connected to the input voltage, and the other end of the chip power supply resistor R1 is connected to pin 10 of the control chip U1. One end of the chip filter capacitor C1 is connected to pin 10 of the control chip U1, and the other end of the chip filter capacitor C1 is grounded. One end of the power supply filter capacitor C2 is connected to the input voltage, and the other end of the power supply filter capacitor C2 is grounded.
[0007] As a further improvement of this utility model, the LED light string includes a white light string LEDW, a blue light string LEDB, a green light string LEDG, and a red light string LEDR. The anodes of the white light string LEDW, the blue light string LEDB, the green light string LEDG, and the red light string LEDR are respectively connected to the input voltage, and the cathodes of the white light string LEDW, the blue light string LEDB, the green light string LEDG, and the red light string LEDR are respectively connected to pins 4, 3, 2, and 1 of the control chip U1.
[0008] As a further improvement of this utility model, pins 4, 3, 2, and 1 of the control chip U1 are respectively connected to voltage divider resistors R3, R4, R5, and R6.
[0009] As a further improvement of this utility model, the high-power lens light strip also includes a chip input write address protection resistor R7 and a chip output write address protection resistor R10. The control chips U1 of the two adjacent light-emitting units are connected in parallel. The pin 6 of the control chip U1 is connected to the chip input write address protection resistor R7, and the pin 7 of the control chip U1 is connected to the chip output write address protection resistor R10.
[0010] As a further improvement of this utility model, pin 6 of the first group of control chip U1 is connected to the write address signal through the chip input write address protection resistor R7, and then pin 7 is connected to pin 6 of the second group of control chip U1 in turn through the chip output write address protection resistor R10 and the chip input write address protection resistor R7, and so on.
[0011] As a further improvement of this utility model, the high-power lens light strip also includes a sampling resistor R2, one end of which is connected to pin 5 of the control chip U1, and the other end of which is grounded.
[0012] As a further improvement of this utility model, the high-power lens light strip also includes a chip DA signal input protection resistor R8 and a chip DB signal input protection resistor R9. One end of the chip DA signal input protection resistor R8 is connected to pin 8 of the control chip U1, and the other end of the chip DA signal input protection resistor R8 is connected to the DA signal. One end of the chip DB signal input protection resistor R9 is connected to pin 9 of the control chip U1, and the other end of the chip DB signal input protection resistor R9 is connected to the DB signal.
[0013] The beneficial effects of this utility model are: the power of the lens light strip is increased and the brightness is improved through the above solution. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other solutions can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a circuit diagram of a high-power lens light strip according to this utility model. Detailed Implementation
[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] like Figure 1 As shown, a high-power lens light strip includes at least two sets of light-emitting units. Each light-emitting unit includes a control chip U1, a chip power supply resistor R1, a chip filter capacitor C1, a power supply filter capacitor C2, and at least two parallel LED strings. The anode of the parallel LED strings is connected to the input voltage, and the cathode of the parallel LED strings is connected to the output port of the control chip U1. One output port of the control chip U1 corresponds to one LED string. One end of the chip power supply resistor R1 is connected to the input voltage, and the other end of the chip power supply resistor R1 is connected to pin 10 of the control chip U1. One end of the chip filter capacitor C1 is connected to pin 10 of the control chip U1, and the other end of the chip filter capacitor C1 is grounded. One end of the power supply filter capacitor C2 is connected to the input voltage, and the other end of the power supply filter capacitor C2 is grounded.
[0021] Figure 1 The VCD in this context refers to the input power supply voltage, preferably 24V.
[0022] The LED light string includes a white light string LEDW, a blue light string LEDB, a green light string LEDG, and a red light string LEDR. The anodes of the white light string LEDW, blue light string LEDB, green light string LEDG, and red light string LEDR are respectively connected to the input voltage, and the cathodes of the white light string LEDW, blue light string LEDB, green light string LEDG, and red light string LEDR are respectively connected to pins 4, 3, 2, and 1 of the control chip U1.
[0023] The control chip U1 has pins 4, 3, 2, and 1 connected to voltage divider resistors R3, R4, R5, and R6, respectively.
[0024] The high-power lens light strip also includes a chip input write address protection resistor R7 and a chip output write address protection resistor R10. The control chips U1 of the two adjacent light-emitting units are connected in parallel. Pin 6 of the control chip U1 is connected to the chip input write address protection resistor R7, and pin 7 of the control chip U1 is connected to the chip output write address protection resistor R10.
[0025] Pin 6 of the first group's control chip U1 is connected to the write address signal through the chip input write address protection resistor R7. Then, pin 7 is connected to pin 6 of the second group's control chip U1 in turn through the chip output write address protection resistor R10 and the chip input write address protection resistor R7. This process continues.
[0026] The high-power lens light strip also includes a sampling resistor R2, one end of which is connected to pin 5 of the control chip U1, and the other end of which is grounded.
[0027] The high-power lens light strip also includes a chip DA signal input protection resistor R8 and a chip DB signal input protection resistor R9. One end of the chip DA signal input protection resistor R8 is connected to pin 8 of the control chip U1, and the other end of the chip DA signal input protection resistor R8 is connected to the DA signal. One end of the chip DB signal input protection resistor R9 is connected to pin 9 of the control chip U1, and the other end of the chip DB signal input protection resistor R9 is connected to the DB signal.
[0028] The DA and DB signals are A / B signals, respectively, and are controlled by the DMX512 controller in parallel A / B configuration.
[0029] The chip power supply resistor R1 has the function of voltage regulation and current limiting, which is used to limit the operating current of the internal voltage regulator module when the chip's voltage regulation function is enabled.
[0030] Chip power supply voltage VDD: VDD = VCC - (IDD + IIN) * R1; where IIN is the operating current of the chip's internal voltage regulator module, and IDD is the chip's quiescent current (excluding the voltage regulator module current). The resistance value of R1 must ensure that VDD > 3V. The larger the resistance of R1, the lower the system power consumption, but the weaker the system's anti-interference capability; the smaller the resistance of R1, the higher the system power consumption and the higher the operating temperature. When designing, the resistance R1 should be selected reasonably according to the system application environment.
[0031] Power supply filter capacitor C2 is the capacitor between the system power supply and ground. It is recommended to reserve this capacitor to avoid power fluctuations / spikes that may affect practical applications. A 1uF-10uF capacitor can be selected based on the actual system load.
[0032] The chip's DA signal input protection resistor R8 and the chip's DB signal input protection resistor R9 are protection resistors for the A / B signal input ports to prevent damage to the chip's A and B ports, which could cause abnormal bus signals.
[0033] The chip input write address protection resistor R7 is a protection resistor for the address signal input port to prevent damage to the signal input port caused by hot-plugging, reverse connection of power supply positive and negative terminals with signal lines, etc.
[0034] The chip output write address protection resistor R10 is a protection resistor for the address signal output port to prevent damage to the signal output port caused by hot-plugging, reverse connection of power supply positive and negative terminals with signal lines, etc.
[0035] Voltage divider resistors R3, R4, R5, and R6 are the voltage divider resistors for the OUTR / G / B / W ports, used to reduce the OUTR / G / B / W port voltage and lower chip power consumption. Their calculation formula is RR / RG / RB / RW = (VCC - N * VLED - VDS) / ILED, where VCC is the input voltage, VLED is the LED voltage drop, ILED is the port output current, and VDS is the OUTR / G / B / W port voltage. When OUTR / G / B / W reaches 1V, the voltage drops to the OUTR / G / B / W port voltage. The TR / G / B / W current can be output at a constant value. Considering the voltage attenuation in actual applications, the voltage of the OUTR / G / B / W port should be considered during the design to ensure constant current output. It is recommended that the OUTR / G / B / W port voltage VDS be designed to be around 3.0V, but the specific value should be based on the actual application. The reference values for the voltage drop VLED of different colored LEDs are as follows: red LED voltage drop is about 2.2V, green LED voltage drop is about 3.2V, blue LED voltage drop is about 3.2V, and white LED voltage drop is about 3.2V. The specific value should be based on the actual specifications of the LED.
[0036] The U1 control chip is a four-channel constant current driver chip with parallel and differential signal transmission, supporting and extending the DMX512 (1990) signal protocol. Differential signal transmission allows for a large number of load points, strong anti-interference capabilities, and long transmission distances. Its patented smooth gradient technology achieves a smoother low-grayscale gradient display effect for the lamps. Software adjustment of the maximum duty cycle allows for online adjustment of the lamp brightness without changing the OUT constant current value. The maximum output current of the OUT R / G / B / W ports is related to the REXT port's resistance to ground, R1, with a maximum output current of 300mA. The controller parameters allow for 64 levels of current gain settings for each of the OUT R / G / B / W ports, and the OUT PWM frequency can be set to 250Hz / 4KHz / 16KHz / 32KHz according to application requirements. The U1 incorporates various synchronization effects, supporting controllerless applications.
[0037] This utility model provides a high-power lens light strip, specifically a high-power DMX 512 RGBW lens light strip. Many DMX512 control chips on the market only have a default output current of 16-20mA. However, many high-rise buildings now require a DMX512 RGBW lens light strip capable of illuminating walls several meters long and emitting multiple RGBW colors. The previous 16-20mA current was insufficient to illuminate such a large area, failing to meet market demands and achieve the desired effect. Therefore, a solution that increases the current and power to meet customer requirements is urgently needed. This solution can provide a maximum single-channel current of 300mA, significantly increasing the power of the lens light strip by more than 15 times compared to the previous 16-20mA. The signal transmission in this solution is controlled by a dual-wire parallel connection of the DMX512 controller (A / B lines). Therefore, the failure of one or two strings of LEDs will not affect the overall display effect, thereby extending the overall project lifespan, reducing construction and maintenance costs, and achieving a more efficient and high-quality result.
[0038] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A high-power lens light strip, characterized in that: The device includes at least two sets of light-emitting units. Each light-emitting unit includes a control chip U1, a chip power supply resistor R1, a chip filter capacitor C1, a power supply filter capacitor C2, and at least two parallel LED strings. The anode of each parallel LED string is connected to the input voltage, and the cathode is connected to the output port of the control chip U1. One output port of the control chip U1 corresponds to one LED string. One end of the chip power supply resistor R1 is connected to the input voltage, and the other end is connected to pin 10 of the control chip U1. One end of the chip filter capacitor C1 is connected to pin 10 of the control chip U1, and the other end is grounded. One end of the power supply filter capacitor C2 is connected to the input voltage, and the other end is grounded.
2. The high-power lens light strip according to claim 1, characterized in that: The LED light string includes a white light string LEDW, a blue light string LEDB, a green light string LEDG, and a red light string LEDR. The anodes of the white light string LEDW, blue light string LEDB, green light string LEDG, and red light string LEDR are respectively connected to the input voltage, and the cathodes of the white light string LEDW, blue light string LEDB, green light string LEDG, and red light string LEDR are respectively connected to pins 4, 3, 2, and 1 of the control chip U1.
3. The high-power lens light strip according to claim 2, characterized in that: The control chip U1 has pins 4, 3, 2, and 1 connected to voltage divider resistors R3, R4, R5, and R6, respectively.
4. The high-power lens light strip according to claim 1, characterized in that: The high-power lens light strip also includes a chip input write address protection resistor R7 and a chip output write address protection resistor R10. The control chips U1 of the two adjacent light-emitting units are connected in parallel. Pin 6 of the control chip U1 is connected to the chip input write address protection resistor R7, and pin 7 of the control chip U1 is connected to the chip output write address protection resistor R10.
5. The high-power lens light strip according to claim 1, characterized in that: The high-power lens light strip also includes a sampling resistor R2, one end of which is connected to pin 5 of the control chip U1, and the other end of which is grounded.
6. The high-power lens light strip according to claim 1, characterized in that: The high-power lens light strip also includes a chip DA signal input protection resistor R8 and a chip DB signal input protection resistor R9. One end of the chip DA signal input protection resistor R8 is connected to pin 8 of the control chip U1, and the other end of the chip DA signal input protection resistor R8 is connected to the DA signal. One end of the chip DB signal input protection resistor R9 is connected to pin 9 of the control chip U1, and the other end of the chip DB signal input protection resistor R9 is connected to the DB signal.