Luminous electronic organ
By combining the light guide plate with the white key housing and selecting appropriate materials, the problem of localized light emission on the white keys of existing luminous electronic keyboards has been solved, achieving uniform light emission across the entire white key and improving both aesthetics and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINJIANG SUN LIN ELECTRONICS CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-01
AI Technical Summary
The existing design of the white keys in illuminated electronic keyboards results in uneven light distribution, creating bright and dark boundaries and light spots, making it impossible to achieve uniform illumination across the entire white key and resulting in poor aesthetics.
The design incorporates a light guide plate and a light source inlet on the white key shell. The light source directly illuminates the light guide plate and diffuses evenly through surface openings. Combined with the high light transmittance of the acrylic light guide plate and the integral injection molding of the ABS connecting plate, the light is evenly distributed, achieving uniform illumination of the entire white key shell.
It achieves a uniform light emission effect across the white bonds, improving visual appeal and structural stability, while reducing production costs and extending service life.
Smart Images

Figure CN224190664U_ABST
Abstract
Description
A type of luminous electronic keyboard Technical Field
[0001] This utility model relates to the field of electronic keyboard technology, specifically to a light-emitting electronic keyboard. Background Technology
[0002] The current design of backlit electronic keyboards typically involves adding LED lights directly to the bottom of transparent or semi-transparent white keys. This results in uneven light distribution, obvious light-dark boundaries or light spots, and limited light emission paths within the key body, making it difficult to cover the entire length of the white keys. Consequently, the white keys can only emit light in certain areas, and the light transmission effect is poor, making the keyboard extremely unsightly.
[0003] In view of this, this case involves in-depth research into the aforementioned issues, which led to the formation of this case. Summary of the Invention [Summary of the Utility Model]
[0004] The present invention aims to solve the aforementioned technical problems of existing luminous electronic keyboards by providing a luminous electronic keyboard that achieves the aesthetic effect of the entire white key illuminating when played.
[0005] This utility model is implemented as follows: a light-emitting electronic keyboard includes a key mechanism, the key mechanism including a white key housing and a light guide plate; the white key housing forms an inner cavity for mounting the light guide plate, and the end of the white key housing also forms a light source inlet; the surface of the light guide plate is provided with multiple openings, and the light source inlet is connected to the inner cavity so that the light source can shine directly on the surface of the light guide plate.
[0006] Furthermore, the plurality of openings are evenly distributed on the surface of the light guide plate.
[0007] Furthermore, the button mechanism also includes a connecting plate that connects multiple white key housings, with one end of the white key housing having a light source entrance port fixedly connected to the connecting plate.
[0008] Furthermore, multiple white key housings and connecting plates are integrally injection molded from ABS material.
[0009] Furthermore, the light guide plate is an acrylic light guide plate made of acrylic material.
[0010] Furthermore, the button mechanism also includes a light-shielding paper; the light guide plate includes a bottom surface that is away from the white key housing during assembly, and the light-shielding paper is attached to the bottom surface.
[0011] Furthermore, each of the white key housings is equipped with a pressure plate for pressing the light guide plate into the inner cavity, and the bottom surface of the pressure plate is formed with a contact foot.
[0012] Furthermore, the button mechanism also includes a button PCB board, on which multiple conductive caps corresponding one-to-one with the contacts are provided.
[0013] Furthermore, it also includes a light-emitting module, which includes a light-emitting circuit board and multiple LED light sources disposed on the light-emitting circuit board; the connection between the connecting plate and the white key housing forms a slot for the light-emitting circuit board to be vertically inserted, and the multiple LED light sources are arranged one-to-one with the light source entrance of the white key housing.
[0014] Furthermore, it also includes a main unit box and a speaker module. The main unit box is electrically connected to the speaker module and the button PCB board, respectively, and the button PCB board is electrically connected to the light-emitting module.
[0015] This utility model of a luminous electronic keyboard achieves direct illumination of the light guide plate by combining the light guide plate with the light source entrance of the white key housing. This allows the light to diffuse evenly along the light guide plate. At the same time, the design of the opening on the surface of the light guide plate causes light refraction, further improving the luminous effect. This solves the problem of localized light emission on the white keys of traditional electronic keyboards and achieves a beautiful effect of uniform light emission across the entire white key housing. Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 is one of the structural schematic diagrams of the luminous electronic keyboard of this utility model.
[0018] Figure 2 is a cross-sectional view of the button mechanism in this utility model.
[0019] Figure 3 is a schematic diagram of the light guide plate in this utility model.
[0020] Figure 4 is a schematic diagram of the structure of the white bond shell in this utility model.
[0021] Figure 5 is a schematic diagram of the structure of the white bond shell in this utility model.
[0022] Figure 6 is a structural schematic diagram of the pressure plate of this utility model.
[0023] Figure 7 is the second schematic diagram of the structure of the luminous electronic keyboard of this utility model.
[0024] Figure 8 is a schematic diagram of the sound and light linkage principle of the luminous electronic keyboard in this utility model.
[0025] Figure label:
[0026] Button mechanism 100, light-emitting module 200, main unit box 300, speaker module 400, white key shell 1, inner cavity 11, light source inlet 12, light guide plate 2, opening 21, light shielding paper 22, connecting plate 3, card slot 31, pressure plate 4, contact foot 41, button PCB board 5, conductive rubber cap 51, light-emitting circuit board 6, LED light source 7. Detailed Implementation Methods
[0027] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] Please refer to Figures 1 to 8. This utility model provides a light-emitting electronic keyboard, including a key mechanism 100. The key mechanism 100 includes a white key housing 1 and a light guide plate 2. The white key housing 1 has an inner cavity 11 for mounting the light guide plate 2, and a light source inlet 12 is also formed at the end of the white key housing 1. The surface of the light guide plate 2 is provided with a plurality of openings 21, and the light source inlet 12 is connected to the inner cavity 11 so that the light source can shine directly on the surface of the light guide plate 2.
[0029] The luminous electronic keyboard of this invention achieves direct illumination of the light guide plate 2 by cooperating with the light source inlet 12 of the white key housing 1. This allows the light to diffuse evenly along the light guide plate 2. At the same time, the design of the opening 21 on the surface of the light guide plate 2 causes the light to refract, further improving the luminous effect. This solves the problem of localized luminous emission of the white keys in traditional electronic keyboards and achieves the aesthetic effect of uniform luminous emission of the entire white key housing 1.
[0030] In this utility model, referring to Figure 3, a plurality of openings 21 are evenly distributed on the surface of the light guide plate 2 to further optimize the light refraction path, avoid light spots or uneven brightness, and improve visual consistency.
[0031] In this utility model, referring to Figure 4, the button mechanism 100 further includes a connecting plate 3 connecting multiple white key housings 1. One end of the white key housing 1 with a light source entrance 12 is fixedly connected to the connecting plate 3. The fixed connection structure between the connecting plate 3 and the white key housing 1 can be produced by an integrated injection molding process, which simplifies the multi-key assembly process, enhances the overall structural stability, and provides a basis for the overall ease of installation of the light-emitting module 200.
[0032] In this invention, multiple white key housings 1 and connecting plates 3 are integrally injection molded from ABS material. ABS material has a light-transmitting effect, and the integral injection molding of the white key housings 1 and connecting plates 3 from ABS material ensures structural strength, reduces production costs, and provides wear resistance, deformation resistance, and extended service life.
[0033] In this invention, the light guide plate 2 is an acrylic light guide plate 2 made of acrylic material. The acrylic light guide plate 2 has high light transmittance and low light loss characteristics, which significantly improves the brightness and uniformity of light emission, while the material is lightweight and easy to process and shape.
[0034] In this invention, referring to Figure 5, the button mechanism 100 further includes a light-shielding paper 22; the light guide plate 2 includes a bottom surface that is away from the white key housing 1 during assembly, and the light-shielding paper 22 is attached to the bottom surface. The light-shielding paper 22, attached to the bottom surface of the light guide plate 2, effectively prevents light from leaking downwards to non-target areas, ensuring that light energy is concentrated and emitted upwards, forming a full-body light-emitting effect on the white key.
[0035] In this invention, referring to Figure 6, each of the white key housings 1 is equipped with a pressure plate 4 for pressing the light guide plate 2 into the inner cavity 11, and the bottom surface of the pressure plate 4 forms a contact foot 41. The combination design of the pressure plate 4 and the contact foot 41 not only enables the rapid and accurate installation of the light guide plate 2, but also provides physical support for the subsequent button triggering function, simplifying the internal structural layout.
[0036] In this invention, referring to Figure 7, the button mechanism 100 further includes a button PCB board 5, on which a plurality of conductive caps 51 are provided, each corresponding to a contact 41. The conductive caps 51 cooperate with the contacts 41, and the contact 41 presses the conductive caps 51 to conduct electrical signals, thereby improving the button's response sensitivity, reducing mechanical wear, and extending the button's lifespan.
[0037] This invention also includes a light-emitting module 200, which comprises a light-emitting circuit board 6 and multiple LED light sources 7 disposed on the light-emitting circuit board 6. A slot 31 is formed at the connection between the connecting plate 3 and the white key housing 1 for the light-emitting circuit board 6 to be vertically inserted. The multiple LED light sources 7 are correspondingly arranged with the light source inlets 12 of the white key housing 1. After the white key housing 1, light guide plate 2, and pressure plate 4 are assembled, the light-emitting module 200 can be directly inserted into the slot 31. The vertical installation design of the slot 31 of the light-emitting module 200 achieves precise alignment between the LED light sources 7 and the light source inlets 12, simplifies the assembly process, and supports modular maintenance and replacement. Preferably, the LED light sources 7 can emit different colors of light, further enhancing the aesthetic appeal of the light emission.
[0038] Referring to Figure 8, this invention also includes a main unit box 300 and a speaker module 400. The main unit box 300 is electrically connected to both the speaker module 400 and the button PCB board 5. The button PCB board 5 is electrically connected to the light-emitting module 200. The main unit box 300 integrates a control circuit, serving as a control hub. It receives button signals from the button PCB board 5 in real time, coordinating the collaborative operation of the light source output of the light-emitting module 200 and the audio output of the speaker module 400 to achieve sound and light linkage and enhance the user's interactive experience.
[0039] Working principle: When the white key housing 1 is pressed, the contact 41 of the pressure plate 4 presses down the conductive cap 51 to generate an electrical signal; after the electrical signal is analyzed by the main unit box 300, it drives the speaker module 400 to produce sound and simultaneously drives the LED light source 7 to emit light. The light is perpendicularly injected into the light guide plate 2 through the light source inlet 12 at the end of the white key housing 1. The light guide plate 2 uses its high light transmittance to conduct the incident light along the length of the light guide plate 2; the uniform openings 21 on the surface of the light guide plate 2 disperse the light through diffuse reflection and refraction, eliminate the directional light path, and make the light energy diffuse evenly to the entire surface of the white key housing 1, so as to achieve the effect of the entire white key housing 1 emitting light when playing the piano.
[0040] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. A light-emitting electronic keyboard, comprising a key mechanism, characterized in that: The button mechanism includes a white key housing and a light guide plate; the white key housing has an inner cavity for mounting the light guide plate, and a light source inlet is formed at the end of the white key housing; the surface of the light guide plate is provided with multiple openings, and the light source inlet is connected to the inner cavity so that the light source can shine directly on the surface of the light guide plate.
2. The lighted electronic keyboard of claim 1, wherein: The multiple openings are evenly distributed on the surface of the light guide plate.
3. The luminous electronic keyboard as described in claim 1, characterized in that: The button mechanism also includes a connecting plate that connects multiple white key housings, with one end of the white key housing having a light source entrance port fixedly connected to the connecting plate.
4. The lighted electronic keyboard of claim 3, wherein: Multiple white key housings and connecting plates are integrally injection molded from ABS material.
5. The lighted electronic keyboard of claim 4, wherein: The light guide plate is an acrylic light guide plate made of acrylic material.
6. The luminous electronic keyboard as described in claim 5, characterized in that: The button mechanism also includes a light-shielding paper; the light guide plate includes a bottom surface that is away from the white key housing during assembly, and the light-shielding paper is attached to the bottom surface.
7. The luminous electronic keyboard as described in claim 6, characterized in that: Each of the white key housings is equipped with a pressure plate for pressing the light guide plate into the inner cavity, and the bottom surface of the pressure plate is formed with a contact foot.
8. The luminous electronic keyboard as described in claim 7, characterized in that: The button mechanism also includes a button PCB board, on which multiple conductive caps are provided, each corresponding to a contact pin.
9. The luminous electronic keyboard as described in any one of claims 3-8, characterized in that: It also includes a light-emitting module, which includes a light-emitting circuit board and multiple LED light sources disposed on the light-emitting circuit board; the connection between the connecting plate and the white key housing forms a slot for the light-emitting circuit board to be vertically inserted, and the multiple LED light sources are arranged one-to-one with the light source entrance of the white key housing.
10. The luminous electronic keyboard as described in claim 9, characterized in that: It also includes a main unit box and a speaker module. The main unit box is electrically connected to the speaker module and the button PCB board, respectively. The button PCB board is electrically connected to the light-emitting module.