Small-size high-brightness stroboscopic backlight source

Abstract

The utility model discloses a small-size high-brightness stroboscopic backlight source which comprises a circuit board, a COB lamp bead and diffuse reflection glass. The COB lamp bead is arranged on the circuit board and electrically connected with the circuit board, the COB lamp bead is fixedly connected with the circuit board, and the circuit board is a metal substrate component; the diffuse reflection glass wraps the COB lamp bead and is bonded with the circuit board, and the surface of the diffuse reflection glass is covered with a nano coating. By arranging the COB lamp bead and the nano coating structure, the product size miniaturization can be achieved, meanwhile, the backlight requirement can be met, the device can be used for a precise visual inspection scene in a narrow space, and the requirement for multi-scene application is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of backlight, especially a small size's high bright frequency flash backlight. BACKGROUND

[0002] The bottom backlight usually refers to the light source arranged at the bottom of the device (such as mobile phone, TV, computer display, etc.), which is used to provide uniform lighting effect, and the bottom backlight can make the screen content more distinct, improve the contrast and color saturation, and make the viewing experience better. Compared with the traditional backlight mode, the bottom backlight can use energy more effectively, thereby prolonging the battery life of the device.

[0003] The commonly used backlight has a relatively large size and volume, and cannot be used in scenes requiring precise visual detection in a narrow space, and the space structure is limited, which cannot meet the application of such scenes. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a small size high bright frequency flash backlight, which can realize product size miniaturization by setting COB lamp beads and nano coating structure, and can meet the backlight demand, can be used in precise visual detection scenes in a narrow space, and meets the demand of multiple scene applications.

[0005] To achieve the above-mentioned purpose, the utility model provides a small size high bright frequency flash backlight, which comprises a circuit board, COB lamp beads and a diffuse reflection glass.

[0006] The COB lamp beads are arranged on the circuit board and electrically connected with the circuit board, and the COB lamp beads are fixedly connected with the circuit board, and the circuit board is a metal substrate component.

[0007] The diffuse reflection glass is stacked on the COB lamp beads, and the two side lower ends of the diffuse reflection glass are bonded to the circuit board, and the surface of the diffuse reflection glass is covered with a nano coating.

[0008] Further, the circuit board is a copper substrate component. The use of red copper material for the circuit board can not only increase the heat dissipation effect of the COB lamp beads, but also improve the reliability, durability and signal transmission performance of the circuit board, reduce the equipment failure rate, and prolong the service life of the product.

[0009] Further, the thickness of the nano coating is 90um-110um. The nano coating is formed by spraying diffuse reflection nano material on the surface of the glass, has the function of diffuse reflection of nano light source, increases the uniformity of the entire light source and the protection of the lamp beads, and the glass can well resist high temperature, can ensure the service life of the light source, and the uniformity of the light source reaches more than 90%.

[0010] Further, the thickness of the nano coating is 100 um. By setting the thickness of 100 um, the diffuse reflection effect can be optimized to meet various use scenarios of the utility model, and a stable light source effect is provided.

[0011] Further, the COB lamp bead is fixed with the circuit board by welding. The wiring mode by welding can make the stability of the lamp bead connection, ensure the stability of the work, and not easy to fall off.

[0012] Further, the diffuse reflection glass and the circuit board are fixed by UV adhesive. The UV adhesive can realize rapid curing, high adhesive strength, transparent appearance, environmental protection and durability, and can prevent moisture, dust or other pollutants from entering the inside of the circuit board, thereby enhancing the electrical insulation performance and anti-interference ability of the equipment.

[0013] Further, the light emitting surface of the diffuse reflection glass is a flat surface or an arc curved surface. The diffuse reflection glass with a flat surface or an arc curved surface can be selected according to different detection objects, the light source illumination and the light spot width are increased, the linear light is customized, and multi-scene and multi-functional application can be realized.

[0014] Further, the two ends of the circuit board are provided with concave arc positioning grooves. The arc positioning grooves are arranged to ensure that the components can be quickly and accurately positioned to the required position during assembly, and the installation process is simplified and the operation error is reduced.

[0015] Further, an external power line is welded on one side of the circuit board. The wire is welded on one side of the circuit board, which can facilitate wiring and improve safety.

[0016] Further, it further comprises a stroboscopic controller, and the stroboscopic controller is electrically connected with the circuit board. The stroboscopic controller can realize high-brightness stroboscopic, so that the brightness of the stroboscopic can be adjusted according to the detection scene to obtain a better detection light source and provide detection accuracy.

[0017] Compared with the prior art, the utility model has the following advantages: the utility model sprays nano paint on the diffuse reflection glass to form a nano coating, so that the diffuse reflection glass plays a role of light source diffusion, increases the uniformity of the entire light source and protects the lamp bead, and the glass can well resist high temperature, can ensure the service life of the light source, and the uniformity of the light source reaches more than 90%.

[0018] In addition, the diffuse reflection glass can also be customized into an optical curved surface according to the application scene and demand, the light source illumination and the light spot width are increased, the linear light is customized, and multi-scene and multi-functional application can be realized.

[0019] The structural design of this light source can flexibly control the size of the light source according to the requirements of the application scenario. The minimum length can be 10mm and the width can be 4mm, which meets and compensates for the use of backlight in a confined and narrow space.

[0020] Moreover, it can be used with a strobe controller to achieve high-brightness strobe, and the lamp beads can also be transformed into ultraviolet, infrared and various visible lights according to needs. It is small and flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of a small-volume, high-brightness stroboscopic backlight source according to Example 1 of the present utility model;

[0023] Figure 2 yes Figure 1 Schematic diagram of the decomposition;

[0024] Figure 3 It is a cross-sectional schematic diagram of the diffuse reflection glass of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a small-volume, high-brightness stroboscopic backlight source according to Example 2 of the present utility model;

[0026] Figure 5 This is a structural schematic diagram of a small-volume high-brightness stroboscopic backlight source according to Example 3 of the present utility model.

[0027] Included in the diagram are:

[0028] 1. Circuit board; 11. Arc-shaped positioning groove; 2. COB lamp beads; 3. Diffuse reflection glass; 31. Nano coating; 32. Curved surface; 4. External power cord; 5. Strobe controller. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in this embodiment of the present invention to clearly and completely describe the technical solution in this embodiment of the present invention. Obviously, the embodiment described is only one embodiment of the present invention, not all embodiments of the present invention. Based on this embodiment of the present invention, all other embodiments of the present invention obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0032] See also Figures 1 to 5 The embodiment of the present utility model provides a small-volume high-brightness strobe backlight source.

[0033] Example 1

[0034] Benru Figures 1-3 As shown, a small-volume high-brightness strobe backlight source of this embodiment includes a circuit board 1, COB lamp beads 2 and diffuse reflection glass 3;

[0035] In this embodiment, the COB lamp bead 2 is mounted on the circuit board 1 and electrically connected to the circuit board 1, and the COB lamp bead 2 is directly soldered to the circuit board 1 to achieve a fixed connection. An external power line 4 is soldered to one side of the circuit board 1. Since the COB lamp bead 2 generates heat when working, insufficient heat dissipation will reduce the life of the COB lamp bead 2 or even burn out the COB lamp bead 2. Therefore, the circuit board 1 of this embodiment is a metal substrate component made of metal copper, preferably made of red copper. Red copper can not only improve thermal conductivity but also better conduction performance. Of course, if necessary, heat dissipation fins can be provided on the side of the circuit board 1 or a radiator can be connected under the circuit board to improve the overall heat dissipation function and ensure the stable operation of the COB lamp bead 2.

[0036] In order to facilitate the installation of the present invention, concave arc-shaped positioning grooves 11 are provided at both ends of the circuit board 1. When in use, it is only necessary to align the arc-shaped positioning grooves 11 and snap them together, so that quick installation and use can be achieved.

[0037] like Figure 1 The diffuse reflection glass 3 shown is stacked on top of the COB lamp bead 2, and its entirety can cover and wrap the light-emitting area of ​​the COB lamp bead 2. The four edges of the diffuse reflection glass 3 are fixed to the circuit board 1 by UV adhesive.

[0038] The light-emitting surface of the diffuse reflection glass 3 of this embodiment is a flat surface, and the surface of the diffuse reflection glass 3 is covered with a nano coating 31. Specifically, the diffuse reflection glass 3 is formed by spraying a layer of diffuse reflection nano paint on the surface of translucent glass to form a nano coating 31. The nano coating 31 enables the translucent glass to have a diffuse reflection function. In particular, the thickness of the nano coating 31 in this embodiment is preferably 100um. The thickness of the nano coating 31 can be set to match the diffuse reflection function of the light-emitting surface. The thickness of the nano coating 31 can be 90um, 92um, 95um, 95um, 104um, 105um, 108um or 110um, and it only needs to be controlled between 90um and 110um. The total reflectivity of this diffuse reflection coating reaches 96%, and the diffuse reflectivity reaches 94%.

[0039] Preferably, different colors of lights are required in different scenes, and the lamp beads of the present invention can also be transformed into ultraviolet, infrared and various visible lights according to needs. They are small and flexible to use and easy and quick to replace.

[0040] The working principle of the present invention is briefly described as follows: The present invention can flexibly control the size of the light source according to the requirements of the application scenario, and the minimum length can be 10mm and the width can be 4mm, which meets and compensates for the scenario of using backlight in a closed and narrow space. When in use, it is only necessary to align the arc-shaped positioning groove 11 of the present invention with the installation position, directly insert it to be installed on the detection equipment, and turn on the power. The nano-coating 31 is provided on the diffuse reflection glass 3 to increase the uniformity of the entire light source and protect the lamp beads. Moreover, the glass can withstand high temperatures well and can ensure the service life of the light source. The uniformity performance of the light source reaches more than 90%. Lamp beads with different coefficient colors can also be replaced according to the lighting requirements of different scenes.

[0041] Example 2

[0042] The difference between this embodiment and embodiment 1 is that Figure 4 As shown, the light-emitting surface of the diffuse reflection glass 3 is a curved surface 32. Setting the light-emitting surface as an optical curved surface allows for more precise control of the scattering direction and distribution of light, ensuring a more uniform intensity of light in different areas. At the same time, light can be more effectively guided in space, thereby improving the utilization rate and lighting effect of the light source, effectively reducing strong direct reflections and avoiding visual discomfort to users. The light source illumination and spot width can also be increased, allowing customization into line light, enabling multi-scene and multi-functional applications. All other aspects are the same as in Example 1, achieving the same effects as in Example 1.

[0043] Example 3

[0044] The difference between this embodiment and embodiment 1 is that Figure 5The frequency flash controller 5 controls the highlight and frequency flash of the COB lamp bead 2, avoids unnecessary frequency flash phenomenon by precisely adjusting the frequency, brightness and power supply waveform of the working current of the circuit board 1, provides smooth and stable lighting effect, ensures visual comfort and precision, and thus achieves the purpose of energy saving or improving display effect.

[0045] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A small-volume high-brightness stroboscopic backlight source, characterized in that: It comprises a circuit board (1), a COB lamp bead (2) and a diffuse reflection glass (3); The COB lamp bead (2) is mounted on the circuit board (1) and electrically connected to the circuit board (1), and the COB lamp bead (2) is fixedly connected to the circuit board (1), and the circuit board (1) is a metal substrate component; The diffuse reflection glass (3) is stacked on the COB lamp bead (2), and the lower ends of both sides of the diffuse reflection glass (3) are bonded to the circuit board (1), and the surface of the diffuse reflection glass (3) is covered with a nano coating (31).

2. The small-volume high-brightness stroboscopic backlight according to claim 1, characterized in that: The circuit board (1) is a copper substrate component.

3. The small-volume high-brightness stroboscopic backlight according to claim 1, characterized in that: The thickness of the nano coating (31) is 90um to 110um.

4. The small-volume high-brightness stroboscopic backlight according to claim 3, characterized in that: The thickness of the nano coating (31) is 100 μm.

5. The small-volume high-brightness stroboscopic backlight according to claim 1, characterized in that: The COB lamp bead (2) and the circuit board (1) are fixed by welding.

6. The small-volume high-brightness stroboscopic backlight source according to claim 1, characterized in that: The diffuse reflection glass (3) and the circuit board (1) are fixed by UV adhesive.

7. The small-volume high-brightness stroboscopic backlight according to claim 1, characterized in that: The light-emitting surface of the diffuse reflection glass (3) is a flat surface or an arc-shaped curved surface (32).

8. The small-volume high-brightness stroboscopic backlight source according to claim 1, characterized in that: Both ends of the circuit board (1) are provided with inwardly concave arc-shaped positioning grooves (11).

9. The small-volume high-brightness stroboscopic backlight source according to claim 1, characterized in that: An external power line (4) is welded to one side of the circuit board (1).

10. The small-volume high-brightness stroboscopic backlight source according to claim 1, characterized in that: It also includes a strobe controller (5), which is electrically connected to the circuit board (1).

Images