Musical glass with sealed sound cavity structure to improve surface sound sensitivity

Abstract

The present application relates to a musical glass with a sealed sound cavity structure to improve the surface sound sensitivity, which includes a main diaphragm glass, a low-damping and resonance-reducing layer, a sealed audio conduction structure, driving components and acrylic adhesive. The low-damping and resonance-reducing layer is arranged on the main diaphragm glass. The sealed audio conduction structure is arranged on the low-damping and resonance-reducing layer. The sealed audio conduction structure includes a frame and an auxiliary diaphragm, the frame is arranged on the low-damping and resonance-reducing layer, the auxiliary diaphragm is arranged on the frame, and a chamfer is provided at the connection between the frame, the low-damping and resonance-reducing layer and the auxiliary diaphragm. One end of the driving component is arranged on the low-damping and resonance-reducing layer and is located in the sealed audio conduction structure, and the other end of the driving component is connected to the auxiliary diaphragm. Acrylic adhesive is provided at the connection between the frame, the auxiliary diaphragm and the low-damping and resonance-reducing layer. The present application can effectively reduce mechanical damping, improve the transmission of audio signals, and indirectly improve the SPL value through the design of chamfers and low-damping and resonance-reducing layers.

Description

Technical Field

[0001] The present application relates to a musical glass, and in particular to a musical glass with a sealed sound cavity structure to enhance the surface sound sensitivity. Background Art

[0002] Music Glass is a new type of professional audio product that can be integrated into any car window. It offers a large-area, highly directional, reliable listening experience with simplified tuning, from top to bottom, left to right, and front to back. It is poised to replace car audio systems in the future, achieving the goals of reducing thickness and weight, offering a new audio experience, and delivering a stunning new technology.

[0003] In the process of implementing this application, the applicant found that due to the large overall thickness of the sunroof, windshield, etc. of the automobile glass and the laminated structure, after integrating the music glass, the research bottleneck SPL value has been low, the sound pressure has been difficult to increase, and the overall power has been in a bottleneck state and cannot be reduced again. Summary of the Invention

[0004] To address the above-mentioned problems in the prior art, the present invention provides a musical glass with a sealed sound cavity structure that improves surface sound sensitivity. The specific technical solution is as follows:

[0005] In the first aspect, a musical glass with a sealed sound cavity structure for improving the surface sound sensitivity is provided, which includes a main diaphragm glass, a low-damping and resonance-reducing layer, a sealed audio conduction structure, a driving component, and an acrylic adhesive. The low-damping and resonance-reducing layer is arranged on the main diaphragm glass. The sealed audio conduction structure is arranged on the low-damping and resonance-reducing layer, and the sealed audio conduction structure includes a frame and an auxiliary diaphragm. The frame is arranged on the low-damping and resonance-reducing layer, and the auxiliary diaphragm is arranged on the frame. The connection between the frame, the low-damping and resonance-reducing layer, and the auxiliary diaphragm is provided with a chamfer. One end of the driving component is arranged on the low-damping and resonance-reducing layer and is located in the sealed audio conduction structure, and the other end of the driving component is connected to the auxiliary diaphragm. Acrylic adhesive is provided at the connection between the frame, the auxiliary diaphragm, and the low-damping and resonance-reducing layer.

[0006] In a first possible implementation of the first aspect, the sealed audio conduction structure further includes a metal film, which is disposed on an inner wall of the frame.

[0007] In a second possible implementation manner of the first aspect, a through hole is provided on one side of the frame body for leading out leads of the driving components, and a sealing structure is provided on the outer side of the through hole for sealing the frame body.

[0008] In combination with the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the sealing structure uses a calcium carbonate sealing film.

[0009] In a fourth possible implementation manner of the first aspect, the frame is made of silicone.

[0010] In a fifth possible implementation manner of the first aspect, the auxiliary diaphragm uses ultra-thin glass.

[0011] In a sixth possible implementation of the first aspect, the main diaphragm glass uses glass from a subway, urban rail, high-speed rail, or car.

[0012] In a seventh possible implementation manner of the first aspect, the low-damping and resonance-reducing layer is made of rubber or silicone.

[0013] In an eighth possible implementation manner of the first aspect, the driving component includes a linear motor or a piezoelectric ceramic.

[0014] In a ninth possible implementation of the first aspect, the bonding length of the acrylic adhesive on each side of the frame and the auxiliary diaphragm and the low-damping resonance reduction layer is 1 / 10 of the frame length, and the bonding height is 1 / 5 of the frame height.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The sealed sound cavity structure of the music glass of the present application improves the surface sound sensitivity. The upper and lower edges of the frame are chamfered, and a low-damping and resonance-reducing layer is provided between the main diaphragm glass and the sealed audio conduction structure and driving components. The chamfer and the low-damping and resonance-reducing layer complement each other, secondarily reducing the mechanical damping (Qms), improving the transmission of audio signals, and indirectly improving the SPL value.

[0017] The sealed audio transmission structure also seals the driver components within, creating a completely sealed sound cavity that not only prevents dust and water but also improves reliability. The driver components are connected to the auxiliary diaphragm on the frame, forming a sound cavity that buffers and releases sound. This not only effectively improves the frequency response curve but also indirectly reduces transient distortion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 and Figure 2 This is a partial schematic diagram of a musical glass having a sealed sound cavity structure to enhance surface sound sensitivity according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram showing a driving component located within a sealed audio conduction structure according to an embodiment of the present application;

[0021] Figure 4 This is a partial schematic diagram of a sealed audio conduction structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0023] See also Figures 1 to 3 , Figure 1 and Figure 2 This is a partial schematic diagram of a musical glass having a sealed sound cavity structure to improve surface sound sensitivity according to an embodiment of the present application. Figure 3 This is a schematic diagram of a driving component located within a sealed audio conduction structure according to one embodiment of the present application. As shown, the sealed sound cavity structure of music glass 1, which enhances surface sound sensitivity, includes a main diaphragm glass 2, a low-damping and resonance-reducing layer 3, a sealed audio conduction structure 4, a driving component 5, and acrylic adhesive 6. The low-damping and resonance-reducing layer 3 is disposed on the main diaphragm glass 2, and the driving component 5 is disposed on the low-damping and resonance-reducing layer 3. The driving component 5 is used to drive the main diaphragm glass 2 to vibrate, thereby achieving surface sound generation. The driving component 5 includes, but is not limited to, a linear motor or piezoelectric ceramic.

[0024] In this embodiment, the main diaphragm glass 2 refers to the original glass used in subways, urban rails, high-speed railways, cars, etc., such as car sunroofs, windshields, high-speed railway side windows, etc. On the basis of not changing the overall structure of the window, the original glass is used as a diaphragm to transmit audio signals and realize large-area surface sound. The low-damping resonance-reducing layer 3 is the intermediate layer medium between the main glass diaphragm 2 and the driving component 5, and is mainly used to reduce the resonance and damping of the glass. The main materials of the low-damping resonance-reducing layer 3 include at least PE, CR, PU foam, PORON, adhesive non-woven fabrics, velvet paper, composite pearl cotton, EPP, etc., but are not limited to solid-state vibration-reducing materials such as rubber, silicone, and air cushions.

[0025] Refer back Figure 1 and Figure 3 As shown, a sealed audio conduction structure 4 is disposed on the low-damping and resonance-reducing layer 3, with the driver component 5 located within the sealed audio conduction structure 4. The sealed audio conduction structure 4 is a sealed structure designed above the low-damping and resonance-reducing layer 3, enclosing the driver component 5 within. This seals the entire sound cavity, transmitting audio to the auxiliary diaphragm while also providing ultra-high reliability and dust and water resistance.

[0026] Refer back Figure 2 and Figure 3As shown, the sealed audio transmission structure 4 includes a frame 41 and an auxiliary diaphragm 42. The auxiliary diaphragm 42 is mounted on the frame 41. One end of the driver component 5 is mounted on the low-damping resonance-reducing layer 3, and the other end of the driver component 5 is connected to the auxiliary diaphragm 42. The driver component 5 transmits force to the auxiliary diaphragm 42, forming a sound cavity. This not only effectively improves the frequency response curve but also indirectly reduces transient distortion.

[0027] Refer back Figure 1 As shown, the connection between the frame 41, the low-damping and resonance-reducing layer 3, and the auxiliary diaphragm 42 is provided with a chamfer 401, giving the frame 41 an overall convex shape, effectively reducing mechanical damping (Qms). The chamfer 401 and the low-damping and resonance-reducing layer 3 complement each other, further reducing damping, improving audio signal transmission, and indirectly increasing the SPL value. In this embodiment, the frame 41 is made of silicone, and the auxiliary diaphragm 42 is made of ultra-thin glass, but this is not limited to this.

[0028] Refer back Figure 2 As shown, acrylic adhesive 6 is applied at the junctions between the frame 41, the auxiliary diaphragm 42, and the low-damping resonance-reducing layer 3, and the frame 41, the auxiliary diaphragm 42, and the low-damping resonance-reducing layer 3 are bonded together using acrylic adhesive 6. In this embodiment, acrylic adhesive 6 is applied at the four corners and the center of the frame 41. The adhesive length of the acrylic adhesive 6 on each side of the frame 41, the auxiliary diaphragm 42, and the low-damping resonance-reducing layer 3 is 1 / 10 of the length of the frame 41, and the adhesive height is 1 / 5 of the height of the frame 41, leaving 3 / 5 of the area free. This ensures that the materials used in the sealed audio conduction structure 4 do not chemically or physically react, effectively ensuring audio signal transmission, and effectively reducing the damping coefficient and mechanical damping (Qms).

[0029] The musical glass 1 of this embodiment features chamfered corners at the upper and lower edges of the frame 41, effectively reducing mechanical damping (Qms). A low-damping, anti-resonance layer 3 is positioned between the main diaphragm glass 2, the sealed audio conduction structure 4, and the driver components 5. The chamfers 401 and the low-damping, anti-resonance layer 3 complement each other, further reducing damping and improving audio signal transmission, indirectly increasing the SPL value.

[0030] The sealed audio conduction structure 4 seals the driver component 5 within, creating a completely sealed sound cavity that not only prevents dust and water but also improves reliability. The driver component 5 is connected to the auxiliary diaphragm 42 on the frame 41, forming a sound cavity. The auxiliary diaphragm 42 provides buffering and release, effectively improving the frequency response curve while also indirectly reducing transient distortion.

[0031] In one embodiment, refer to Figure 3As shown, the music glass 1 with a sealed sound cavity structure to improve the surface sound sensitivity is designed with a low-frequency trap, that is, a through hole 411 is provided on one side of the frame 41 to lead out the lead of the driving component 5. This not only effectively enhances the low-frequency effect, but also facilitates the sealing of the product to improve reliability, and on the basis of the sealed audio conduction structure, the sensitivity (SPL) value is secondary improved.

[0032] A sealing structure (not shown) is provided outside the through-hole 411 to seal the frame 41. In this embodiment, the sealing structure utilizes a calcium carbonate sealing film. Specifically, the calcium carbonate conforms to the shape of the through-hole 411, and its thickness is calculated based on the depth of the through-hole 411. The hole is sealed with an ultra-thin film, flush with the outermost edge of the frame 41. After the calcium carbonate seal is completed, an acrylic film is bonded to the outermost edge to prevent the calcium carbonate from falling out and provide a secondary seal.

[0033] In one embodiment, see Figure 4 , which is a partial schematic diagram of the sealed audio conduction structure of an embodiment of the present application; as shown in the figure, the sealed audio conduction structure 4 also includes a metal film 43, and the metal film 43 is arranged on the inner wall of the frame 41 to facilitate the propagation of high frequencies and ensure the improvement of high-frequency audio in the sound cavity design.

[0034] In summary, the present application provides a musical glass with a sealed sound cavity structure to enhance the surface sound sensitivity. The present application performs a chamfer design at the upper and lower edges of the frame, which can effectively reduce the mechanical damping (Qms). A low-damping resonance-reducing layer is provided between the main diaphragm glass and the sealed audio conduction structure and the driving components. The chamfer and the low-damping resonance-reducing layer complement each other to reduce the damping secondarily, enhance the transmission of the audio signal, and indirectly enhance the SPL value. In addition, the sealed audio conduction structure seals the driving components inside it, playing the role of an overall sealed sound cavity, which is not only dustproof and waterproof, but also improves reliability.

[0035] At the same time, the driver components are connected to the auxiliary diaphragm on the frame to form a sound cavity, which is used to buffer and release the sound. This not only effectively improves the frequency response curve, but also indirectly reduces transient distortion. This application also uses a low-frequency trap design, which not only effectively enhances the low-frequency effect, but also facilitates the sealing of the product and improves reliability. Based on the sealed audio transmission structure, the sensitivity (SPL) value is secondary improved.

[0036] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0037] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A musical glass with a sealed sound cavity structure to improve surface sound sensitivity, characterized in that: include: Main diaphragm glass; A low-damping resonance-reducing layer is provided on the main diaphragm glass; a sealed audio conduction structure, disposed on the low-damping and resonance-reducing layer, comprising a frame and an auxiliary diaphragm, wherein the frame is disposed on the low-damping and resonance-reducing layer, and the auxiliary diaphragm is disposed on the frame, and chamfers are provided at the connections between the frame, the low-damping and resonance-reducing layer, and the auxiliary diaphragm, and further comprising a metal film disposed on the inner wall of the frame; a driving component, one end of which is disposed on the low-damping resonance reduction layer and located within the sealed audio conduction structure, and the other end of which is connected to the auxiliary diaphragm; An acrylic adhesive is provided at the connection between the frame, the auxiliary diaphragm and the low-damping resonance-reducing layer. The bonding length of the acrylic adhesive on each side of the frame, the auxiliary diaphragm and the low-damping resonance-reducing layer is 1 / 10 of the length of the frame, and the bonding height is 1 / 5 of the height of the frame.

2. The music glass with a sealed sound cavity structure for improving surface sound sensitivity according to claim 1 is characterized in that: A through hole is provided on one side of the frame body for leading out the leads of the driving components, and a sealing structure is provided on the outer side of the through hole for sealing the frame body.

3. The music glass with a sealed sound cavity structure for improving surface sound sensitivity according to claim 2, characterized in that: The sealing structure uses a calcium carbonate sealing film.

4. The music glass with a sealed sound cavity structure for improving surface sound sensitivity according to claim 1, characterized in that: The frame is made of silica gel.

5. The music glass with a sealed sound cavity structure for improving surface sound sensitivity according to claim 1 is characterized in that: The auxiliary diaphragm is made of ultra-thin glass.

6. The music glass with a sealed sound cavity structure for improving surface sound sensitivity according to claim 1, characterized in that: The main diaphragm glass is glass used in subways, urban rails, high-speed railways or cars.

7. The music glass with a sealed sound cavity structure for improving surface sound sensitivity according to claim 1, characterized in that: The low damping and resonance reduction layer is made of rubber or silicone.

8. The music glass with a sealed sound cavity structure for improving surface sound sensitivity according to claim 1, characterized in that: The driving component includes a linear motor or piezoelectric ceramics.

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