A speaker light-emitting panel

Abstract

This utility model relates to the field of speaker equipment technology, and in particular to a speaker light-emitting panel. Addressing the problems of light leakage and uneven light emission in existing speaker light-emitting panels due to limitations in the height of the sound outlet (i.e., panel thickness), this utility model provides a speaker light-emitting panel comprising a printed circuit board, a light-blocking component, a panel shell, and a through-hole. The printed circuit board has a periodically arranged array of RGB LEDs. The light-blocking component forms an array of LED cavities equal in number to the LEDs, sequentially designated as a first, second, and third LED cavity, ensuring that the illumination areas of adjacent RGB LEDs differ by 120° on the printed circuit board plane. The panel shell is white and semi-transparent. This speaker light-emitting panel reduces light leakage through angle limitation, achieves comprehensive light coverage and improves uniformity through complementary connections between adjacent LED cavities, and does not require increased thickness or number of LEDs, thus controlling cost and energy consumption and optimizing visual effects.

Description

Technical Field

[0001] This utility model relates to the field of speaker equipment technology, and in particular to a speaker light-emitting panel. Background Technology

[0002] In speaker design, the luminous panel is a crucial component for enhancing the visual experience and is widely used to improve the user's immersive interactive experience. Existing speaker luminous panels typically employ a design combining RGB LEDs with a milky-white semi-transparent panel. The milky-white semi-transparent panel diffuses the light emitted by the RGB LEDs, creating a soft and uniform lighting effect that meets users' needs for both aesthetic appeal and ambiance.

[0003] However, in practical applications, the design of the luminous panel is strictly limited by the height of the speaker's sound outlet. An excessively high outlet will affect the off-axis curve of the sound and negatively impact sound performance. The thickness of the luminous panel must be equal to the height of the sound outlet, and its value must not exceed the height of the outlet, which affects sound quality. Therefore, when the luminous panel's light effect is poor, increasing the panel's thickness cannot optimize the light propagation path. Limited by this thickness requirement, when the light emitted by the RGB LEDs illuminates the milky white translucent panel, it is prone to interference and light leakage due to the short propagation distance and insufficient diffusion within the panel. Simultaneously, the uniformity of light distribution on the panel surface is poor, with some areas being brighter than others, severely affecting the visual effect of the luminous panel. To improve these problems, existing technologies often increase the number of RGB LEDs, attempting to compensate for the uneven light distribution by increasing light density. However, this approach not only significantly increases the hardware cost of the luminous panel but also leads to increased energy consumption, contradicting current energy-saving and environmentally friendly design principles. Furthermore, practice has shown that simply increasing the number of LEDs cannot fundamentally solve the problems of light leakage and uneven light emission caused by thickness limitations, and the improvement effect is very limited. Therefore, it is urgent to redesign the internal structure of the speaker's light-emitting panel to reduce light leakage and achieve a uniform light emission effect without increasing energy consumption and hardware costs. Utility Model Content

[0004] Based on this, it is necessary to address the above-mentioned shortcomings by providing a speaker light-emitting panel, comprising: a printed circuit board, a light-blocking component disposed on the printed circuit board, a panel shell covering the light-blocking component, and a sound outlet hole penetrating the printed circuit board, the light-blocking component, and the panel shell; the printed circuit board is provided with a periodically arranged array of RGB LED beads, the light-blocking component is periodically formed with an equal number of LED bead cavities, each LED bead cavity containing one RGB LED bead, the LED bead cavity including a first LED bead cavity, a second LED bead cavity, and a third LED bead cavity arranged sequentially, the LED bead cavities being used to ensure that the illumination ranges of adjacent RGB LED beads on the plane of the printed circuit board differ by 120°, and the panel shell being white and semi-transparent.

[0005] Preferably, the RGB LED bead is disposed on one side of the LED bead cavity, and the side wall of the LED bead cavity away from the RGB LED bead is provided with a light guide strip connected to the panel housing. The light guide strip is used to guide the light to propagate to the panel housing.

[0006] Preferably, a groove is formed on the lower surface of the panel housing relative to the sidewall of the lamp bead cavity, and the sidewall of the lamp bead cavity extends into the groove. The sidewall of the lamp bead cavity extending into the groove is used to reduce the light from spreading to the surroundings along the panel housing.

[0007] Preferably, the surface of the lamp bead cavity sidewall is provided with a reflective layer.

[0008] The aforementioned speaker's light-emitting panel, through the periodically arranged first, second, and third LED cavities on the light-blocking component, ensures that the illumination zones of adjacent RGB LEDs differ by 120° on the printed circuit board plane. Without increasing the thickness of the light-emitting panel (to meet the height limit of the sound outlet) or the number of LEDs, this design effectively reduces light leakage by preventing the light from overlapping between adjacent LEDs through precise angle limitations; it also achieves full coverage of the panel's light through complementary 120° angles, eliminating blind spots and significantly improving light uniformity, while simultaneously controlling hardware costs and energy consumption and optimizing visual effects. Attached Figure Description

[0009] Figure 1 This is a perspective view of the speaker light-emitting panel in one embodiment of the present invention; Figure 2 This is an exploded view of the speaker's light-emitting panel in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the speaker's light-emitting panel concealing the printed circuit board in one embodiment of the present invention; Figure 4 This is a schematic diagram of the light-blocking component of the speaker's light-emitting panel in one embodiment of the present invention; Figure 5This is a schematic diagram of the printed circuit board of the speaker light-emitting panel in one embodiment of the present invention; Figure 6 This is a front view of the speaker's light-emitting panel in one embodiment of the present invention; Figure 7 for Figure 6 Cross-sectional view at position AA; Figure 8 for Figure 7 A magnified view of the area at position B in the middle.

[0010] Explanation of reference numerals in the attached diagram: 100-Printed circuit board, 110-RGB LED bead, 200-Light shield, 200a-LED bead cavity, 200b-First LED bead cavity, 200c-Second LED bead cavity, 200d-Third LED bead cavity, 210-Light guide strip, 220-LED bead cavity sidewall, 300-Panel housing, 300a-Groove, 400a-Sound outlet. Detailed Implementation

[0011] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0012] This utility model discloses a speaker light-emitting panel, such as Figures 1-8As shown, the system includes: a printed circuit board 100, a light-blocking component 200, a panel housing 300, and a sound outlet 400a passing through the printed circuit board 100, the light-blocking component 200, and the panel housing 300. The sound outlet 400a is connected to the speaker unit. The light-blocking component 200 is disposed on the printed circuit board 100, and the panel housing 300 covers the light-blocking component 200. In one embodiment, the panel housing 300 has several threaded holes, and the light-blocking component 200 and the printed circuit board 100 have through holes corresponding to the aforementioned threaded holes. Bolts are threaded through the through holes and connected to the threaded holes on the panel housing 300, thereby assembling the printed circuit board 100, the light-blocking component 200, and the panel housing 300 together to form a whole. The printed circuit board 100 has a periodically arranged array of RGB LED beads 110. The light-blocking component 200 has periodically formed LED bead cavities 200a, the same number as the RGB LED beads 110. Each LED bead cavity 200a contains one RGB LED bead 110. The LED bead cavity 200a is an open sector-shaped space with a central angle of 120°. The two arc-shaped ends of the LED bead cavity 200a are connected to the adjacent LED bead cavities 200a. The RGB LED beads 110 are positioned close to the center of the LED bead cavity 200a, so that the illumination surface of the RGB LED beads 110 is 120°. The LED cavity 200a is divided into a first LED cavity 200b, a second LED cavity 200c, and a third LED cavity 200d according to the orientation of its central angle, and they are arranged periodically in sequence. The orientations of the central angles (irradiation angles of the RGB LEDs 110) of the above three types of LED cavities 200a differ by 120° between each pair. That is, the LED cavity 200a is used to ensure that the irradiation ranges of adjacent RGB LEDs 110 on the plane of the printed circuit board 100 differ by 120°. (One embodiment) In the first LED cavity 200b, the central angle is 0°~120° (i.e., the RGB LED 110 illumination surface is 0°~120°); the central angle of the second LED cavity 200c is 120°~240° (i.e., the RGB LED 110 illumination surface is 120°~240°); and the central angle of the second LED cavity 200d is 240°~360° (i.e., the RGB LED 110 illumination surface is 240°~360°). The panel housing 300 is white and semi-transparent.

[0013] The speaker light-emitting panel provided by this utility model forms complementary lighting angles through three orientations of the LED cavity 200a, so that every area on the entire printed circuit board 100 plane can be covered by the light of at least one RGB LED 110. In the connecting area of ​​adjacent LED cavities 200a that are far away from the RGB LED 110, the RGB LED 110 in the two LED cavities 200a provide illumination, so that the brightness will not be reduced due to the distance from the RGB LED 110, avoiding blind spots and solving the problem of uneven light emission caused by overlapping or blank lighting angles in traditional LED arrays. This significantly improves the uniformity of light emission of the light-emitting panel and makes the visual effect softer and more comfortable. The illumination angle of each RGB LED bead 110 is strictly limited to within 120°, and the illumination directions of adjacent RGB LED beads 110 differ by 120°. The light propagation path is clear, avoiding the cross-over and superposition of light caused by the wide-angle emission of traditional unconstrained LED beads (light crossover). It effectively prevents the mutual penetration and interference of light from adjacent RGB LED beads 110, and avoids color distortion or uneven brightness caused by the mixing of light from different RGB LED beads 110 (such as the color mixing caused by light crossover of RGB LED beads 110).

[0014] To improve the luminous effect of the speaker's luminous panel, in one embodiment, such as... Figure 1 , Figures 6-8 As shown, the RGB LED bead 110 is disposed on one side of the LED bead cavity 200a. The side wall of the LED bead cavity 200a away from the RGB LED bead 110 is provided with a light guide strip 210 connected to the panel housing 300. The light guide strip 210 is used to guide the light to propagate to the panel housing 300. In terms of light transmission efficiency, after the RGB LED 110 is placed on one side of the LED cavity 200a, the side wall away from the RGB LED 110 is connected to the panel shell 300 through the light guide strip 210. The light guide strip 210 uses the principle of total internal reflection to form a directional constraint on the light, which can efficiently guide the light emitted by the RGB LED 110 to the panel shell 300, reduce the scattering and refraction loss of light inside the LED cavity 200a, solve the problem of propagation path dispersion and energy loss that may exist when the light directly shines on the panel in the original solution, and improve the light utilization rate. In terms of uniform light emission, the light guide strip 210 can uniformly transmit the concentrated light of the RGB LED 110 along the length direction and diffuse it to the panel shell 300. Combined with the diffuse reflection characteristics of the panel shell 300, it can weaken the local bright spots formed by direct light from the LED, making the light distribution on the panel more balanced, especially making up for the problem of insufficient brightness in the edge area that may exist in the original angle coverage.

[0015] In one embodiment, such as Figures 6-8As shown, a groove 300a is formed on the lower surface of the panel housing 300 relative to the lamp bead cavity sidewall 220. The lamp bead cavity sidewall 220 extends into the groove 300a, which is used to reduce the propagation of light along the panel housing 300. Although the light emitted by the RGB lamp beads 110 is limited to a 120° illumination range by the lamp bead cavity 200a, the light may still propagate along the translucent light-emitting panel housing 300 to adjacent areas when it reaches the panel housing 300. The groove 300a of the panel housing 300 allows the lamp bead cavity sidewall 220 to extend directly into it, blocking the lateral propagation path of the light along the panel housing 300. This prevents the light from bypassing the angle limitation of the lamp bead cavity 200a and entering the area corresponding to the adjacent RGB lamp beads 110, further enhancing the light-blocking effect and reducing the color mixing or uneven brightness problems caused by the cross-beaming of different RGB lamp beads 110. Because light leakage is effectively blocked, the light from each RGB LED bead 110 can be more concentrated within its designed illumination area. The brightness and color of each area on the light-emitting panel are closer to the preset effect, avoiding localized overbrightness or darkness caused by light leakage and improving overall light emission consistency. In terms of structural fit, the side wall 220 of the LED bead cavity extends into the groove 300a, increasing the contact seal between the light-blocking component 200 and the panel housing 300, reducing the gap between them. Gaps are often potential channels for light leakage, and the tight fit further reduces the possibility of light diffusing from the gap.

[0016] In one embodiment, a reflective layer is provided on the surface of the sidewall 220 of the LED cavity. The reflective layer can redirect light that might otherwise be absorbed by the sidewall back into the LED cavity 200a and towards the panel shell 300 through reflection, reducing light energy loss and allowing more light to be used for panel illumination. This increases the overall brightness of the luminous panel under the same LED power, or can reduce the power of the RGB LEDs 110 to save energy. The reflective layer can directionally reflect the scattered light from the RGB LEDs 110, allowing the light to cover the panel area corresponding to the LED cavity 200a more evenly, avoiding local brightness differences caused by the limited angle of direct light illumination. In particular, it can compensate for the insufficient brightness at the edges of the RGB LED illumination range, making the luminous panel emit light more softly and evenly.

[0017] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0018] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A speaker light-emitting panel, characterized in that, include: The circuit board (100), a light shield (200) disposed on the circuit board (100), a panel shell (300) covering the light shield (200), and a sound outlet (400a) penetrating the circuit board (100), the light shield (200), and the panel shell (300); the circuit board (100) is provided with a periodically arranged array of RGB LED beads (110), and the light shield (200) is periodically formed with a number corresponding to the number of RGB LED beads (110). Equal LED bead cavities (200a), each of the LED bead cavities (200a) is provided with one RGB LED bead (110), the LED bead cavities (200a) include a first LED bead cavity (200b), a second LED bead cavity (200c) and a third LED bead cavity (200d) arranged in sequence, the LED bead cavities (200a) are used to make the illumination range of adjacent RGB LED beads (110) on the plane of the printed circuit board (100) differ by 120°, the panel shell (300) is white and semi-transparent.

2. The speaker light-emitting panel according to claim 1, characterized in that, The RGB LED bead (110) is located on one side of the LED bead cavity (200a). The side wall of the LED bead cavity (200a) away from the RGB LED bead (110) is provided with a light guide strip (210) connected to the panel housing (300). The light guide strip (210) is used to guide the light to propagate to the panel housing (300).

3. The speaker light-emitting panel according to claim 1, characterized in that, The lower surface of the panel housing (300) forms a groove (300a) with the lamp bead cavity sidewall (220) at a position opposite to the panel housing (300a). The lamp bead cavity sidewall (220) extends into the groove (300a) and is used to reduce the spread of light along the panel housing (300) to the surrounding area.

4. The speaker light-emitting panel according to claim 1, characterized in that, The surface of the lamp bead cavity sidewall (220) is provided with a reflective layer.

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