PCB light picture based on intelligent dimming chip and capable of multi-mode switching

Abstract

This utility model belongs to the technical field of lighting decoration components, and discloses a PCB light painting based on an intelligent dimming chip and capable of multiple mode switching. It includes a housing, with a display area and a button area on the front and a power socket on the side. A PCB base plate is installed inside the housing, with connectors installed at the four corners of the PCB base plate. One side of the PCB base plate is mounted to the back of the housing via the connectors, and the other side of the PCB base plate is connected to a PCB top plate via the connectors. The PCB base plate includes a first substrate, a first top layer solder mask, a first top layer silkscreen layer, components, a first bottom layer solder mask, and a first bottom layer silkscreen layer. The components include a power supply interface circuit, an SGL8022W touch dimming chip circuit, an LED ceramic filament circuit, and a mechanical connection circuit.

Description

Technical Field

[0001] This utility model belongs to the technical field of lighting decoration components, specifically relating to a PCB lighting painting based on an intelligent dimming chip and capable of switching between multiple modes. Background Technology

[0002] With people's increasing demands for quality of life and the continuous development of technology, the demand for indoor and outdoor decorative lighting is becoming increasingly diversified. In today's fields of indoor and outdoor decoration and lighting, commercial displays, and advertising, light paintings, as a decorative element with unique visual appeal, are widely used.

[0003] Traditional PCB light displays typically employ simple circuit designs, enabling only basic light emission. Their dimming methods are limited, with a narrow range of modes, often confined to a fixed brightness level. This fails to meet users' demands for diverse lighting effects. Furthermore, more complex adjustable lighting devices often rely on software control systems, which not only increases cost and design complexity but also raises concerns about software compatibility, stability, and maintenance. Therefore, the market urgently needs a PCB light display that is simple in structure, easy to operate, requires no software control, and can switch between multiple dimming modes to fill this technological gap and meet the growing market demand and users' expectations for high-quality lighting decoration products. Summary of the Invention

[0004] In view of the problems mentioned above in the background technology, the purpose of this utility model is to provide a PCB light painting based on an intelligent dimming chip that can switch between multiple modes.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A PCB light display based on an intelligent dimming chip and capable of switching between multiple modes includes a housing, the front of which has a display area and a button area, and the side of which has a power socket;

[0007] A PCB base plate is installed inside the housing. Connectors are installed at the four corners of the PCB base plate. One side of the PCB base plate is installed to the back side of the inside of the housing through the connectors. The other side of the PCB base plate is connected to a PCB top plate through the connectors.

[0008] The PCB baseboard includes a first substrate, on one side of which a first top layer solder mask and a first top layer silkscreen are sequentially mounted, and components are mounted on the first top layer silkscreen. On the other side of the first substrate, a first bottom layer solder mask and a first bottom layer silkscreen are sequentially mounted.

[0009] The PCB top plate includes a second substrate. A second bottom solder mask layer, a second bottom silkscreen layer and a pattern layer are sequentially installed on one side of the second substrate, and a second top solder mask layer and a top silkscreen layer are sequentially installed on the other side of the second substrate.

[0010] The components include a power supply interface circuit, an SGL8022W touch dimming chip circuit, an LED ceramic filament circuit, and a mechanical connection circuit.

[0011] Furthermore, the LED ceramic filaments on the LED ceramic filament circuit are multiple, disposed on the first top layer of solder resist and distributed in an array pattern. Their light emission colors can be selected as single or multiple combinations as needed. This design achieves a variety of light emission modes, and together with the patterns on the pattern layer, enhances the visual appeal.

[0012] Furthermore, the outer shell, the PCB base plate, and the PCB top plate are all rectangular, circular, elliptical, or custom artistic shapes. This design, where the shape of the outer shell matches the pattern on the pattern layer, makes the display of the light painting more diverse and enhances the visual experience.

[0013] Further specifying, U1 on the SGL8022W touch dimming chip circuit uses external resistors and capacitors to adjust different dimming modes and parameters. The SGL8022W touch dimming chip circuit includes capacitors C1, C2, and C3, and resistors R9 and R10. This design is used to stabilize the chip's operating voltage and current, and to set different dimming modes and parameters through external resistors, capacitors, and other adjustment components. The adjustment components are connected to the corresponding pins of the dimming chip, and the connection lines adopt an anti-interference design to avoid the influence of external electromagnetic interference on the dimming mode. C1, C2, and C3 are respectively connected between different pins of U1 and ground, and R9 and R10 are respectively connected between specific pins of U1 and the adjustment components.

[0014] Furthermore, the SGL8022W dimming chip in the SGL8022W touch dimming chip circuit can achieve switching between at least three dimming modes, including linear dimming, logarithmic dimming, and exponential dimming, without the need for software control. Among them, the brightness of linear dimming changes uniformly within the dimming range and has high adjustment accuracy. Logarithmic dimming conforms to the change law of human eye's light sensitivity (when the dimming signal increases from 0% to 10%, the light brightness increases from 0% to 3%; when the dimming signal increases from 90% to 100%, the light brightness increases from 70% to 100%). Exponential dimming can reduce the circuit area while ensuring current accuracy to achieve precise brightness adjustment.

[0015] Furthermore, the back of the housing is provided with heat dissipation holes, a design that effectively dissipates the heat generated during component operation.

[0016] Furthermore, the first top solder mask layer has a reserved expansion interface for connection with the SGL8022W touch dimming chip circuit. This design allows for the connection of external control modules or function modules through the expansion interface, thereby enabling the expansion of the light painting function.

[0017] The beneficial effects of using this utility model are as follows:

[0018] The structural design of this utility model uses the light emitted by the ceramic filament in the LED ceramic filament circuit on the PCB base plate to combine with the pattern on the pattern layer to achieve the effect of light painting, which has a good visual appeal and high market value.

[0019] This invention uses the SGL8022W touch dimming chip circuit to achieve hardware circuit switching of multiple dimming modes. No software control is required, and the operation is simple. It can meet the needs of different scenarios for light brightness and effect. For example, when reading, linear dimming can be selected to obtain uniform and comfortable light, and logarithmic dimming or exponential dimming can be used when creating an atmosphere.

[0020] The LED ceramic filament circuit used in this invention has energy-saving features. In addition, the intelligent dimming chip can adjust the brightness according to actual needs, reduce energy consumption, and extend the service life of the light-emitting element, which is in line with the development trend of energy conservation and environmental protection.

[0021] The multi-layered internal structure and the protective outer shell of this invention result in high overall structural strength, strong drop resistance, and stable component installation, ensuring its service life. Attached Figure Description

[0022] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the PCB lighting display based on an intelligent dimming chip and capable of switching multiple modes according to the present invention;

[0024] Figure 2 This is a schematic diagram of the structure between the PCB base plate and the PCB top plate of an embodiment of a PCB lighting display based on an intelligent dimming chip and capable of switching multiple modes according to this utility model.

[0025] Figure 3 This is an exploded view of the PCB substrate of an embodiment of the PCB lighting display based on an intelligent dimming chip and capable of switching multiple modes according to this utility model.

[0026] Figure 4 This is an exploded view of the top board of a PCB light display embodiment based on an intelligent dimming chip and capable of switching multiple modes, according to the present invention.

[0027] Figure 5This is a schematic diagram of the circuit principle of the components in an embodiment of a PCB lighting display based on an intelligent dimming chip and capable of switching multiple modes according to this utility model.

[0028] The symbols for the main components are explained below:

[0029] 1. Outer casing; 2. Display area; 3. Button area; 4. Power socket; 5. PCB base plate; 6. Connector; 7. PCB top plate; 8. Components;

[0030] First substrate 51; First top solder mask layer 52; First top silkscreen layer 53; First bottom solder mask layer 54; First bottom silkscreen layer 55;

[0031] Second substrate 71; second bottom solder resist layer 72; second bottom silkscreen layer 73; pattern layer 74; second top solder resist layer 75; top silkscreen layer 76;

[0032] Power supply interface circuit 81; SGL8022W touch dimming chip circuit 82; LED ceramic filament circuit 83; mechanical connection circuit 84. Detailed Implementation

[0033] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figures 1-5 As shown, the present invention provides a PCB light display based on an intelligent dimming chip and capable of switching multiple modes, including a housing 1, a display area 2 and a button area 3 on the front of the housing 1, and a power socket 4 on the side of the housing 1.

[0035] A PCB base plate 5 is installed inside the outer casing 1. Connectors 6 are installed at the four corners of the PCB base plate 5. One side of the PCB base plate 5 is installed on the back side of the inner casing 1 through the connectors 6, and the other side of the PCB base plate 5 is connected to the PCB top plate 7 through the connectors 6.

[0036] The PCB base plate 5 includes a first substrate 51. A first top layer solder mask 52 and a first top layer silkscreen 53 are sequentially installed on one side of the first substrate 51. Components 8 are installed on the first top layer silkscreen 53. A first bottom layer solder mask 54 and a first bottom layer silkscreen 55 are sequentially installed on the other side of the first substrate 51.

[0037] The PCB top plate 7 includes a second substrate 71. A second bottom solder mask layer 72, a second bottom silkscreen layer 73 and a pattern layer 74 are sequentially installed on one side of the second substrate 71. A second top solder mask layer 75 and a top silkscreen layer 76 are sequentially installed on the other side of the second substrate 71.

[0038] The components include a power supply interface circuit 81, an SGL8022W touch dimming chip circuit 82, an LED ceramic filament circuit 83, and a mechanical connection circuit 84.

[0039] In this implementation, when using a PCB lighting design based on a smart dimming chip that can switch between multiple modes, the components 8, namely the power supply interface circuit 51, the SGL8022W touch dimming chip circuit 52, the LED ceramic filament circuit 53, and the mechanical connection circuit 54, are installed on the first top layer solder mask layer 52. Then, the first top layer silkscreen layer 53, the first bottom layer solder mask layer 54, and the first bottom layer silkscreen layer 55 are installed on the first substrate 51 in sequence, and the connectors 6 are installed at the four corners. It should be noted that the connectors 6 include, but are not limited to, the use of pin headers.

[0040] The second bottom solder mask layer 72, the second bottom silkscreen layer 73, the pattern layer 74, the second top solder mask layer 75 and the top silkscreen layer 76 are installed on the second substrate 71 in sequence. The pattern on the pattern layer 74 is the pattern displayed in the display area 2. Then, the PCB top plate 7 is installed on the PCB bottom plate 5 through the connector 6. After that, the PCB bottom plate 5 and the PCB top plate 7 are installed in the housing 1.

[0041] It should be emphasized that the second top solder mask layer 72 will be copper-cut in conjunction with the pattern on the pattern layer 74;

[0042] The first top silkscreen layer 53, the first bottom solder mask layer 54, the second bottom solder mask layer 72, and the second top solder mask layer 75 are designed to prevent short circuits, improve welding quality, protect the circuit, provide electrical insulation, and increase mechanical strength. The mechanical connection circuit 84 is connected to the power socket 4 and obtains power from the power socket 4. When powered on, the ceramic filament in the LED ceramic filament circuit 83 emits light, and the light shines through the copper-cut portion of the second top solder mask layer 72 and passes through the pattern layer 74 to achieve the purpose of lighting and realize the light painting effect.

[0043] Furthermore, the outer casing 1 is made of transparent or semi-transparent insulating material, so that when the light-emitting element on the LED ceramic filament circuit 53 is lit, the outer casing 1 can also play a certain lighting role; the button area 3 is preferably a touch button area, which serves to control the switch.

[0044] External resistors, capacitors and other adjustment components are set according to the required dimming mode and parameters. By adjusting the values ​​of these components, different modes such as linear dimming, logarithmic dimming and exponential dimming can be achieved.

[0045] Further explanation:

[0046] After assembling the PCB light pattern, a preliminary power-on test is first performed to check whether the light-emitting element, i.e. the ceramic filament, in the LED ceramic filament circuit 83 can light up normally, and whether there are any damaged or non-lighting ceramic filaments. If any abnormality is found in the ceramic filament, the solder joints and the ceramic filament itself should be checked in time for repair or replacement.

[0047] Next, the dimming function of the SGL8022W dimming chip in the SGL8022W touch dimming chip circuit 82 is debugged. By adjusting the parameter values ​​of the external resistor and capacitor, observe whether the light can achieve the expected dimming mode switching, such as whether the gradient mode is smooth and natural, whether the frequency of the flashing mode meets the requirements, and whether the brightness change of the breathing mode is uniform. If the dimming effect is not ideal, the parameters of the adjustment element should be further fine-tuned according to the chip's datasheet and the actual debugging situation until a satisfactory dimming effect is achieved.

[0048] During the debugging process, attention should also be paid to checking the stability and reliability of the entire PCB lighting display, including whether overheating or component damage will occur under long-term working conditions, and whether the lighting effect and circuit performance will be affected under different ambient temperature and humidity conditions. If necessary, the heat dissipation design and protective coating of the PCB board can be optimized and improved to improve the environmental adaptability and reliability of the product.

[0049] The LED ceramic filaments on the preferred LED ceramic filament circuit 83 are multiple, set on the first top layer solder mask layer 52 and distributed in an array pattern. The light emission color can be selected as a single color or multiple combinations as needed. This design realizes a variety of light emission modes. Combined with the pattern on the pattern layer 74, it enhances the visual appeal. In fact, the number and installation arrangement of LED ceramic filaments can also be considered according to the specific situation.

[0050] Preferably, the outer shell 1, the PCB base plate 5, and the PCB top plate 7 are all rectangular, circular, oval, or custom artistic shapes. This design allows the shape of the outer shell 1 to match the pattern on the pattern layer 74, making the display of the light painting more diverse and enhancing the visual experience. In fact, the shape of the PCB board 5 can also be considered depending on the specific circumstances.

[0051] The preferred SGL8022W touch dimming chip circuit 82 uses U1 on the SGL8022W touch dimming chip circuit 82 to set different dimming modes and parameters through external resistors and capacitors. The SGL8022W touch dimming chip circuit 82 includes capacitors C1, C2, and C3 and resistors R9 and R10. This design is used to stabilize the chip's operating voltage and current, and to set different dimming modes and parameters through external resistors, capacitors, and other adjustment components. The adjustment components are connected to the corresponding pins of the dimming chip. The connection circuit adopts an anti-interference design to avoid the influence of external electromagnetic interference on the dimming mode. C1, C2, and C3 are respectively connected between different pins of U1 and ground, and R9 and R10 are respectively connected between specific pins of U1 and the adjustment components. In fact, the circuit structure of the SGL8022W touch dimming chip circuit 82 can also be considered according to specific circumstances.

[0052] The SGL8022W dimming chip in the preferred SGL8022W touch dimming chip circuit 82 can achieve switching between at least three dimming modes, including linear dimming, logarithmic dimming, and exponential dimming, without the need for software control. Among them, the brightness of linear dimming changes uniformly within the dimming range and has high adjustment accuracy. Logarithmic dimming conforms to the change law of human eye sensitivity to light. When the dimming signal increases from 0% to 10%, the light brightness increases from 0% to 3%. When the dimming signal increases from 90% to 100%, the light brightness increases from 70% to 100%. Exponential dimming can reduce the circuit area while ensuring current accuracy to achieve precise brightness adjustment. In fact, the performance of the SGL8022W dimming chip in the SGL8022W touch dimming chip circuit 52 can also be considered according to specific circumstances.

[0053] Preferably, the back of the housing has heat dissipation holes. This design effectively dissipates the heat generated during the operation of the components. In practice, the location and style of the heat dissipation holes and other heat dissipation measures can also be considered depending on the specific situation.

[0054] Preferably, the first top solder mask layer 52 has an expansion interface for connecting to the SGL8022W touch dimming chip circuit 82. This design allows for the connection of external control modules or function modules through the expansion interface, thereby expanding the functionality of the light display. In fact, the functional expansion connection structure of the PCB board 5 can also be considered depending on the specific circumstances.

[0055] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A PCB light painting based on an intelligent dimming chip and capable of multi-mode switching, comprising a housing (1), characterized in that: The front of the housing (1) is provided with a display area (2) and a button area (3), and the side of the housing (1) is provided with a power socket (4). A PCB base plate (5) is installed inside the outer shell (1). Connectors (6) are installed at the four corners of the PCB base plate (5). One side of the PCB base plate (5) is installed on the back side inside the outer shell (1) through the connectors (6). The other side of the PCB base plate (5) is connected to a PCB top plate (7) through the connectors (6). The PCB base plate (5) includes a first substrate (51). A first top layer solder mask (52) and a first top layer silkscreen (53) are sequentially installed on one side of the first substrate (51). Components (8) are installed on the first top layer silkscreen (53). A first bottom layer solder mask (54) and a first bottom layer silkscreen (55) are sequentially installed on the other side of the first substrate (51). The PCB top plate (7) includes a second substrate (71). A second bottom solder mask layer (72), a second bottom silkscreen layer (73) and a pattern layer (74) are sequentially installed on one side of the second substrate (71). A second top solder mask layer (75) and a top silkscreen layer (76) are sequentially installed on the other side of the second substrate (71). The components include a power supply interface circuit (81), an SGL8022W touch dimming chip circuit (82), an LED ceramic filament circuit (83), and a mechanical connection circuit (84).

2. The PCB light display based on an intelligent dimming chip and capable of multi-mode switching according to claim 1, characterized in that: The LED ceramic filament circuit (83) has multiple LED ceramic filaments, which are disposed on the first top layer solder mask (52) and distributed in an array pattern. The light emission color can be selected as a single color or a combination of multiple colors as needed.

3. A PCB light display based on an intelligent dimming chip and capable of multi-mode switching, as described in claim 1, is characterized in that: The outer shell (1), the PCB base plate (5), and the PCB top plate (7) are all rectangular, circular, elliptical, or custom-designed artistic shapes.

4. A PCB light display based on an intelligent dimming chip and capable of multi-mode switching, as described in claim 1, characterized in that: The U1 on the SGL8022W touch dimming chip circuit (82) is adjusted by external resistors and capacitors to set different dimming modes and parameters. The SGL8022W touch dimming chip circuit (82) includes capacitors C1, C2, and C3 and resistors R9 and R10.

5. A PCB light display based on an intelligent dimming chip and capable of multi-mode switching, as described in claim 1, characterized in that: The SGL8022W dimming chip in the SGL8022W touch dimming chip circuit (82) can achieve switching of at least three dimming modes, including linear dimming, logarithmic dimming and exponential dimming.

6. A PCB light display based on an intelligent dimming chip and capable of multi-mode switching, as described in claim 1, characterized in that: The back of the outer casing (1) is provided with heat dissipation holes.

7. A PCB light display based on an intelligent dimming chip and capable of multi-mode switching according to claim 1, characterized in that: The first top solder mask layer (52) has an expansion interface for connection with the SGL8022W touch dimming chip circuit (82).

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