Luminous piano keys and electronic piano
By setting up a light emitting unit on the control board of the electronic piano and optimizing the light guide path using the light guide plate and light transmitting points, the problem of poor luminous effect of the electronic piano key in the prior art is solved, and a better luminous effect and performance experience is achieved.
Patent Information
- Application Number
- CN202421118067.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-21
AI Technical Summary
In the prior art, the luminous effect of the electronic piano keys is poor, resulting in poor experience, and lack of special design for the light guide path, resulting in poor overall luminous effect.
A light emitting unit is provided on the control board of the electronic piano, and light is directed into the light guide plate through the light inlet point, propagating along the light guide path, and emitting light through the light transmitting point and illuminating the key surface to improve the luminous effect.
By optimizing the light guide path and light transmitting point design, the luminous effect of the electronic piano keys is significantly improved and the performance experience is improved.
Smart Images
Figure CN222720069U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of keyboard musical instruments, in particular to a luminous piano key and an electronic piano. Background Art
[0002] In order to improve the visual guidance and performance effect of the electronic keyboard keys, it is necessary to add a lighting function to the electronic keyboard keys. In the prior art, generally one or more LED lights are directly installed on the bottom of the transparent or translucent keys, so that the light shines directly on the keys to achieve lighting, but the lighting effect is not good and the experience is poor; and in the prior art, generally no special design is made for the light guide path, resulting in poor overall lighting effect of the keys. Utility Model Content
[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a luminous piano key and an electronic piano, which are mainly used to solve the defects of the prior art such as poor luminous effect of the piano keys.
[0004] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:
[0005] In a first aspect, the utility model provides a luminous piano key, comprising:
[0006] Key frame;
[0007] A control panel provided with a light emitting unit;
[0008] A light guide plate is embedded in the key frame, and a light entrance point is provided at its near light end. The light entrance point is directly opposite or obliquely opposite to the light-emitting unit. A light guide path with the light entrance point as the starting point is formed in the light guide plate. The light guide plate is provided with a light-transmitting point that communicates with at least one section of the light guide path.
[0009] In some embodiments, the light guide plate is provided with a refraction point surface at a corner, and the refraction point surface enables the light guide path to propagate along a non-straight path.
[0010] In some embodiments, the high-beam end of the light guide plate is provided with a first snap-in structure, the key frame is provided with a second snap-in structure, and the light guide plate is connected to the key frame by snapping the first snap-in structure with the second snap-in structure.
[0011] In some embodiments, a corner angle of the light guide plate is greater than 90° and less than 180°.
[0012] In some embodiments, the key frame is provided with a light shielding rib at one end close to the control panel, and the light shielding rib is used to shield the cross-light from the adjacent key frame.
[0013] In some embodiments, the arrangement density of the light-transmitting points at the far light end of the light guide plate is greater than the arrangement density at the near light end of the light guide plate.
[0014] In some embodiments, the light guide plate is made of a light-transmitting material, and the light guide path propagates along the light-transmitting material.
[0015] In some embodiments, a hollow light guide path is constructed inside the light guide plate.
[0016] In a second aspect, the utility model provides an electronic keyboard, comprising the luminous keys as described above.
[0017] Compared with the prior art, the present invention has at least the following beneficial effects:
[0018] A light-emitting unit is set on the control panel of the original electronic piano keys. The light emitted by the light-emitting unit enters the light guide plate through the light entrance point and propagates along the light guide path. The light in the light guide path is emitted from the light transmission point through the opened light transmission point and shines on the key surface to improve the lighting effect.
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.
[0021] Figure 1 It is a cross-sectional schematic diagram of a luminous piano key under an embodiment.
[0022] Figure 2 The figure is a schematic diagram of an exploded structure of a luminous piano key in an embodiment.
[0023] Figure 3 Schematic diagram of the bottom surface of the light guide plate. DETAILED DESCRIPTION
[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present invention, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.
[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.
[0028] Reference Figures 1 to 3 The utility model provides a luminous piano key, comprising:
[0029] A key frame 10, the top of which is a key surface, and the operator plays by pressing the key surface;
[0030] The control board 20 is provided with a light-emitting unit 21. The control board 20 is a PCB board triggered by conductive glue installed at the bottom of the electronic keyboard. In this embodiment, the light-emitting unit 21 is arranged on the control board 20 of the original electronic keyboard keys; preferably, the light-emitting unit 21 is an LED unit;
[0031] The light guide plate 30 is embedded in the key frame 10. The light guide plate 30 is a long strip structure, divided into a low beam end and a high beam end. The low beam end is provided with a light entrance point 31, and the light entrance point 31 is directly opposite or obliquely opposite to the light emitting unit 21. A light guide path 32 with the light entrance point 31 as the starting point is formed in the light guide plate 30. The light guide plate 30 is provided with a light transmission point 33 connected with at least one section of the light guide path 32.
[0032] The light is emitted through the light-emitting unit 21, and the light is guided through the light entrance point 31 at the near light end, and the light is introduced into the light guiding path 32 for propagation. It should be noted that since the entire light guiding path 32 does not completely overlap with the key surface, a light-transmitting point 33 is opened accordingly in combination with the layout position of the key surface. The light-transmitting point 33 is connected to at least one section of the light guiding path 32. The light in the light guiding path 32 is emitted from the light-transmitting point 33 and irradiated onto the key surface to improve the lighting effect.
[0033] As an implementation mode, the light guide plate 30 is provided with a refractive point emission surface 34 at the corner, and the refractive point emission surface 34 enables the light guide path 32 to propagate along a non-straight path. The position of the refractive point emission surface 34 divides the light guide path 32 into two sections, the first section is closer to the light emitting unit 21, and the second section is a horizontal section parallel to the key surface; the refractive point emission surface 34 is a chamfered design, and the light introduced from the light incident point 31 generates a chamfered reflection at the refractive point emission surface 34, and the reflected light enters the second section of the light guide path 32, thereby improving the light guiding performance of the entire key surface, with good effect.
[0034] As an implementation mode, a first snap-in structure 41 is provided at the high-beam end of the light guide plate 30, and a second snap-in structure 42 is provided at the key frame 10. The light guide plate 30 is connected to the key frame 10 by snapping the first snap-in structure 41 and the second snap-in structure 42 together. Preferably, the first snap-in structure 41 is a block structure, and the second snap-in structure 42 is a slot structure. The block structure is snapped into the slot structure to realize a limited connection between the light guide plate 30 and the key frame 10.
[0035] As an embodiment, the corner angle of the light guide plate 30 is greater than 90° and less than 180°, so that the light introduced from the light incident point 31 is irradiated on the refraction point irradiation surface 34 at a certain angle, and the refraction point irradiation surface 34 is then chamfered for reflection, so that the light can enter the second section of the light guide path 32 more smoothly.
[0036] As an implementation manner, the key frame 10 is provided with a shading rib 43 at one end close to the control panel 20 . The shading rib 43 is located on the periphery of the light-emitting unit 21 . The shading rib 43 is used to block the cross-light from adjacent key frames 10 .
[0037] As an implementation mode, the arrangement density of the light-transmitting points 33 at the far light end of the light guide plate 30 is greater than the arrangement density at the near light end of the light guide plate 30. As the light intensity becomes weaker the further back it is in the propagation process of the light guide path 32, in order to compensate for this intensity change, the arrangement density of the light-transmitting points 33 at the far light end is greater, so as to increase the luminous density and make the brightness of the entire key surface more uniform.
[0038] Optionally, the light guide plate 30 is made of a light-transmitting material, preferably, a highly light-transmitting material; the light guide path 32 propagates along the light-transmitting material, and the light-transmitting point 33 is equivalent to a blind hole dug in the light-transmitting material, so that the light-transmitting material can better emit light at the light-transmitting point 33. The light in the light guide plate 30 propagates along the light guide path, and then is diffusely reflected onto the key surface through the light-transmitting point.
[0039] Preferably, the light transmission point 33 is arranged on the bottom surface of the light guide plate 30, and light is transmitted through the bottom surface and diffusely reflected on the key surface, and the light is soft.
[0040] Optionally, a hollow light guide path 32 is constructed inside the light guide plate 30. The light guide plate 30 can be made of hard plastic, and a hollow chamber is formed in the hard plastic. This hollow chamber is the light guide path 32. By setting an opening on the wall of the hard plastic, light can be radiated out through the opening.
[0041] In a second aspect, the utility model provides an electronic piano, comprising the luminous keys as described above, wherein a plurality of luminous keys are arranged to form a keyboard of the electronic piano.
[0042] In summary, compared with the prior art, the above-mentioned embodiments provide a luminous piano key and an electronic piano, in which a light-emitting unit 21 is arranged on the control panel 20 of the original electronic piano key, and the light emitted by the light-emitting unit 21 enters the light guide plate 30 through the light entrance point 31 and propagates along the light guide path 32. Through the opened light-transmitting point 33, the light in the light guide path 32 is emitted from the light-transmitting point 33 and irradiated on the key surface, thereby improving the luminous effect.
[0043] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.
Claims
1. A luminous piano key, characterized in that: include: Key frame; A control panel provided with a light emitting unit; A light guide plate is embedded in the key frame, and a light entrance point is provided at its near light end. The light entrance point is directly opposite or obliquely opposite to the light-emitting unit. A light guide path with the light entrance point as the starting point is formed in the light guide plate. The light guide plate is provided with a light-transmitting point that communicates with at least one section of the light guide path.
2. A luminous piano key as claimed in claim 1, characterized in that: The light guide plate is provided with a refraction point emitting surface at a corner, and the refraction point emitting surface enables the light guide path to propagate along a non-straight path.
3. A luminous piano key as claimed in claim 2, characterized in that: The high-beam end of the light guide plate is provided with a first snap-in structure, the key frame is provided with a second snap-in structure, and the light guide plate is connected to the key frame by snapping the first snap-in structure with the second snap-in structure.
4. A luminous piano key as claimed in claim 2, characterized in that: The corner angle of the light guide plate is greater than 90° and less than 180°.
5. A luminous piano key as claimed in claim 1, characterized in that: The key frame is provided with a light shielding rib at one end close to the control panel, and the light shielding rib is used to shield the cross-light of the adjacent key frame.
6. A luminous piano key according to any one of claims 1 to 5, characterized in that: The arrangement density of the light-transmitting points at the far light end of the light guide plate is greater than that at the near light end of the light guide plate.
7. A luminous piano key according to any one of claims 1 to 5, characterized in that: The light guide plate is made of a light-transmitting material, and the light guide path propagates along the light-transmitting material.
8. A luminous piano key according to any one of claims 1 to 5, characterized in that: A hollow light guiding path is constructed inside the light guiding plate.
9. An electronic keyboard, characterized in that: Comprising the luminous keys as described in any one of claims 1 to 8.