A new linear light

Abstract

The utility model relates to packaging box surface two -color printing technical field, concretely is a new line lamp, including outer protective shell, the bottom fixed setting of outer protective shell has the base, the top fixed setting of outer protective shell has a plurality of lenses, the utility model, external controller sends serial control signal through DIN, after SM16704PK decoding, control the brightness of RGBW four color LED, and the redundant data is given next chip through DOUT, realizes the cascade of many lamp pearl, all chip synchronous refreshes cache data, guarantees the light effect is consistent, controls the brightness (256 level gray scale) of RGBW (red / green / blue / white) four color LED, supports the cascade of many chips, is often used in line lamp, soft lamp band etc. decorative lighting, power clamp stable input power (5~24V) gives all module power supply of chip, prevents voltage fluctuation damage chip, the band gap reference generates stable reference voltage Vref, provides reference for constant -current module, the current module generates constant -current drive's reference current based on Vref, guarantees LED current stability.

Description

Technical Field

[0001] This utility model relates to the field of two-color printing technology on the surface of packaging boxes, and in particular to a novel linear light. Background Technology

[0002] Linear lights are LED lighting fixtures that are long and strip-shaped with uniform and continuous light emission. They are also commonly known as LED linear lights and are a common product in contour lighting and decorative lighting. They are widely used in architectural lighting, interior decoration and other scenarios.

[0003] In existing technologies, some linear lights use a parallel connection of power supply, resistor, and LED without chip control, which may result in uneven brightness (voltage fluctuations / line voltage drops), poor grayscale, and the inability to create cascaded dynamic effects.

[0004] Therefore, we propose a new type of linear light. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel linear light.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel linear light includes an outer protective shell, a base fixedly mounted on the bottom of the outer protective shell, a plurality of lenses fixedly mounted on the top of the outer protective shell, a plug on the outer side of the outer protective shell, a cover plate on the top of the outer protective shell, the top of the outer protective shell being rotatably connected to the cover plate, a drive fixedly mounted on the inner side of the outer protective shell, and a circuit board mounted below the lenses.

[0008] As a further improvement of this utility model: the circuit board integrates several LED beads, the driver drives the LEDs of corresponding colors, OUTR→red light, OUTG→green light, OUTB→blue light, OUTW→white light, and several chips are arranged on the outside of the circuit board, the chips are divided into four channels R / G / B / W, and each channel outputs a stable current.

[0009] As a further embodiment of this invention: the VDD of the chip is connected in parallel to the positive terminal of the external power supply, the GND of the chip is connected in parallel to the negative terminal of the external power supply, the DIN of the first chip is connected to the data output terminal of the external controller, the DOUT of the first chip is connected to the DIN of the second chip, and so on, until the DOUT of the last chip is left floating or matched with a resistor.

[0010] As a further improvement of this utility model: the drive (6) integrates a circuit, an inductor L1, a capacitor C1, a capacitor C2, a resistor R1, a resistor R2, and a resistor R3; wherein,

[0011] One end of the inductor L1 is connected in series with a 12V external power supply VDD, and the other end of the inductor L1 is connected to the VDD pin of the chip.

[0012] One end of capacitor C1 and capacitor C2 are connected in series with the VDD pin of the chip, and the other end of capacitor C1 and capacitor C2 are connected in series with GND. Capacitor C1 is a 10μF electrolytic capacitor and capacitor C2 is a 0.1μF ceramic capacitor.

[0013] One end of the resistor R is connected in series with the chip DIN, the other end of the resistor R is connected in series with the controller, and the other end of the resistor R is connected in series with the upstream chip DOUT.

[0014] One end of the resistor R2 is connected in series with the chip DIN, and the other end of the resistor R2 is connected in series with the subsequent chip DIN.

[0015] One end of the resistor R3 is connected in parallel to the last chip DOUT.

[0016] As a further improvement of this utility model: the VDD of the chip is connected in parallel to the power supply after "L1+C1+C2", and all GND are connected in parallel to the negative terminal of the power supply.

[0017] As a further embodiment of this utility model: one end of the chip OUTR is electrically connected to the anode of the red LED, one end of the chip OUTG is electrically connected to the anode of the green LED, one end of the chip OUTB is electrically connected to the anode of the blue LED, one end of the chip OUTW is electrically connected to the anode of the white LED, and the cathodes of all LEDs are connected in parallel to GND.

[0018] As a further improvement of this invention: each chip corresponds to one set of RGBW LEDs, and all LED cathodes share a common ground.

[0019] Compared with the prior art, this utility model provides a novel linear light with the following beneficial effects:

[0020] 1. In this utility model, the external controller sends a serial control signal via DIN. After decoding by the SM16704PK, it controls the brightness of the RGBW four-color LEDs. Excess data is transmitted to the next chip via DOUT, realizing multi-LED cascading. All chips synchronously refresh the cached data to ensure consistent lighting effects. It controls the brightness (256 gray levels) of the RGBW (red / green / blue / white) four-color LEDs and supports multi-chip cascading. It is commonly used in decorative lighting such as linear lights and flexible light strips. The power clamp stabilizes the input power (5-24V) to power all chip modules and prevents voltage fluctuations from damaging the chips. The bandgap reference generates a stable reference voltage Vref to provide a reference for the constant current module. The current module generates a reference current for constant current drive based on Vref to ensure stable LED current (default 17mA).

[0021] 2. This utility model features a chip with built-in constant current drive and power supply filtering (inductor + capacitor), which ensures stable current for each LED (unaffected by voltage fluctuations / line voltage drops), resulting in better brightness and color uniformity across the entire light strip. The series resistors (R1 / R2) and pull-down resistors (R3) at the data port suppress signal interference and reflection. Data transmission is more stable when multiple chips are cascaded (even hundreds), reducing the likelihood of "LED malfunction." 256-level grayscale control and RGBW four-channel, combined with chip timing synchronization, enable delicate gradient colors and dynamic effects (such as flowing water and breathing), enhancing decorative appeal and effectively improving the device's practicality.

[0022] 3. This utility model requires only "inductors + small-capacity capacitors + ordinary resistors" as peripheral components, all of which are low-cost passive components. Furthermore, the SM16704PK has high integration, with a single chip driving one group of RGBW lights, eliminating the need for additional driver circuits. This results in low BOM cost for the entire lamp, clear logic for circuit connections (parallel power supply and serial data connection), low PCB wiring difficulty, high efficiency for automated welding and assembly of the wing-shaped light strip, and easy assurance of production yield. The power clamping and filtering circuit supports a wide voltage input of 5-24V, adapting to both low-voltage DC power supplies (such as 12V) and high-voltage power supplies for some engineering projects. It can be used for indoor decoration, outdoor lighting, and other scenarios. The modular circuit design (each chip corresponds to one group of LEDs) means that if a single LED fails, only the corresponding module needs to be replaced, eliminating the need for complete lamp repair. This makes subsequent maintenance more convenient and effectively improves the ease of use of the device.

[0023] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of a novel linear light proposed in this utility model;

[0025] Figure 2This is a partial cross-sectional structural diagram of a novel linear light proposed in this utility model;

[0026] Figure 3 This is a cross-sectional structural diagram of a novel linear light proposed in this utility model;

[0027] Figure 4 A schematic diagram of the circuit structure of a novel linear light proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the chip structure of a novel linear light proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the chip structure of a novel linear light proposed in this utility model.

[0030] In the diagram: 1. Outer protective shell; 2. Base; 3. Lens; 4. End cap; 5. Cover plate; 6. Drive; 7. Circuit board. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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 limitations on this utility model.

[0033] Example: A novel linear light includes an outer protective shell 1, a base 2 fixedly mounted on the bottom of the outer protective shell 1, several lenses 3 fixedly mounted on the top of the outer protective shell 1, a plug 4 mounted on the outer side of the outer protective shell 1, a cover plate 5 mounted on the top of the outer protective shell 1, the top of the outer protective shell 1 being rotatably connected to the cover plate 5, a drive 6 fixedly mounted on the inner side of the outer protective shell 1, and a circuit board 7 mounted below the lenses 3.

[0034] like Figures 1-6As shown, circuit board 7 integrates several LED beads, driving LEDs of corresponding colors on driver 6: OUTR → red, OUTG → green, OUTB → blue, OUTW → white. Several chips are arranged on the outer side of circuit board 7, divided into four channels: R / G / B / W. Each channel outputs a stable current. The VDD of the chip is connected in parallel to the positive terminal of the external power supply, and the GND of the chip is connected in parallel to the negative terminal of the external power supply. The DIN of the first chip is connected to the data output terminal of the external controller, the DOUT of the first chip is connected to the DIN of the second chip, and so on, until the DOUT of the last chip is left floating or matched with a resistor. Driver 6 integrates circuitry, inductor L1, capacitors C1 and C2, resistors R1, R2, and R3; among which...

[0035] One end of inductor L1 is connected in series with an external 12V power supply VDD, and the other end of inductor L1 is connected to the VDD pin of the chip.

[0036] One end of capacitors C1 and C2 is connected in series with the VDD pin of the chip, and the other end of capacitors C1 and C2 is connected in series with GND. Capacitor C1 is a 10μF electrolytic capacitor and capacitor C2 is a 0.1μF ceramic capacitor.

[0037] One end of resistor R is connected in series with chip DIN, and the other end of resistor R is connected in series with controller. The other end of resistor R is connected in series with upstream chip DOUT.

[0038] One end of resistor R2 is connected in series with chip DIN, and the other end of resistor R2 is connected in series with subsequent chip DIN.

[0039] One end of resistor R3 is connected in parallel to the last chip DOUT. The chip's VDD is connected in parallel to the power supply after "L1+C1+C2". All GNDs are connected in parallel to the negative terminal of the power supply. One end of chip OUTR is electrically connected to the anode of the red LED. One end of chip OUTG is electrically connected to the anode of the green LED. One end of chip OUTB is electrically connected to the anode of the blue LED. One end of chip OUTW is electrically connected to the anode of the white LED. The cathodes of all LEDs are connected in parallel to GND. Each chip corresponds to one group of RGBW LEDs. All LED cathodes share a common ground. When using the new type of linear light, the external controller sends a serial control signal through DIN. After decoding by SM16704PK, it controls the brightness of the four-color RGBW LEDs. Excess data is transmitted to the next chip through DOUT to realize multi-LED cascading. All chips synchronously refresh the cached data to ensure consistent lighting effects and control the brightness (256 levels of grayscale) of the four-color RGBW (red / green / blue / white) LEDs.

[0040] Working principle: When using the new type of linear light, the external controller sends a serial control signal via DIN. After decoding by the SM16704PK, it controls the brightness of the RGBW four-color LEDs. The excess data is transmitted to the next chip through DOUT, realizing the cascading of multiple LEDs. All chips synchronously refresh the cache data to ensure consistent lighting effects and control the brightness of the RGBW (red / green / blue / white) four-color LEDs (256 levels of grayscale).

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel linear light, comprising an outer protective shell (1), characterized in that... The outer protective shell (1) is fixedly provided with a base (2) at the bottom, and a number of lenses (3) are fixedly provided at the top of the outer protective shell (1). A plug (4) is provided on the outer side of the outer protective shell (1). A cover plate (5) is provided on the top of the outer protective shell (1). The top of the outer protective shell (1) is rotatably connected to the cover plate (5). A drive (6) is fixedly provided on the inner side of the outer protective shell (1). A circuit board (7) is provided below the lens (3).

2. A novel linear light according to claim 1, characterized in that... The circuit board (7) integrates several LED beads. The driver (6) corresponds to the color of the LED: OUTR → red light, OUTG → green light, OUTB → blue light, OUTW → white light. Several chips are arranged on the outside of the circuit board (7). The chips are divided into four paths: R / G / B / W, and each path outputs a stable current.

3. A novel linear light according to claim 2, characterized in that... The VDD of the chip is connected in parallel to the positive terminal of the external power supply, and the GND of the chip is connected in parallel to the negative terminal of the external power supply. The DIN of the first chip is connected to the data output terminal of the external controller, the DOUT of the first chip is connected to the DIN of the second chip, and so on, until the DOUT of the last chip is left floating or matched with a resistor.

4. A novel linear light according to claim 3, characterized in that... The drive (6) integrates circuitry, inductor L1, capacitor C1, capacitor C2, resistors R1, R2, and R3; wherein, One end of the inductor L1 is connected in series with a 12V external power supply VDD, and the other end of the inductor L1 is connected to the VDD pin of the chip. One end of capacitor C1 and capacitor C2 are connected in series with the VDD pin of the chip, and the other end of capacitor C1 and capacitor C2 are connected in series with GND. Capacitor C1 is a 10μF electrolytic capacitor and capacitor C2 is a 0.1μF ceramic capacitor. One end of the resistor R is connected in series with the chip DIN, the other end of the resistor R is connected in series with the controller, and the other end of the resistor R is connected in series with the upstream chip DOUT. One end of the resistor R2 is connected in series with the chip DIN, and the other end of the resistor R2 is connected in series with the subsequent chip DIN. One end of the resistor R3 is connected in parallel to the last chip DOUT.

5. A novel linear light according to claim 4, characterized in that... The chip's VDD is connected in parallel to the power supply after "L1+C1+C2", and all GNDs are connected in parallel to the negative terminal of the power supply.

6. A novel linear light according to claim 5, characterized in that... One end of the chip OUTR is electrically connected to the anode of the red LED, one end of the chip OUTG is electrically connected to the anode of the green LED, one end of the chip OUTB is electrically connected to the anode of the blue LED, and one end of the chip OUTW is electrically connected to the anode of the white LED. The cathodes of all LEDs are connected in parallel to GND.

7. A novel linear light according to claim 6, characterized in that... Each chip corresponds to one set of RGBWLEDs, and all LED cathodes share a common ground.

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