Fidelity-level low-sound-effect sound equipment

Abstract

The invention discloses a fidelity-level low-sound-effect sound box, and relates to the technical field of sound box structures, the fidelity-level low-sound-effect sound box comprises a bass unit and two groups of symmetrically arranged full-frequency units, the bass unit can be arranged in the middle of a sofa, and the two groups of full-frequency units can be arranged on the two sides of the sofa. According to the invention, multiple layers of nano graphene materials are introduced into the active elastic ring, the passive elastic ring and the vibration damper support sheet. The graphene layers greatly reduce the mass of the assembly and reduce the inertial effect, so that the sound system can respond to the change of an audio signal more quickly. The quick response capability significantly improves the clarity and detail performance of the sound, and can provide more accurate and vivid tone quality experience especially when reproducing complex music and audio in a high dynamic range.

Description

Technical Field

[0001] The invention relates to the technical field of sound box structures, in particular to a fidelity-level low-frequency sound system. Background Art

[0002] Traditional sound systems have some limitations in design and material selection. Usually, sound components such as elastic rings and vibration supports are mainly made of a single rubber or metal material. The large mass of these materials leads to high inertia of the components, slow response speed, and difficulty in accurately following fast-changing audio signals, especially in the reproduction of low-frequency and high dynamic range audio. In addition, the elastic components of traditional sound systems have fixed shapes and tensions, and cannot be dynamically adjusted according to the real-time changes of audio signals, resulting in unstable and insufficient sound quality under different audio conditions. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a high-fidelity bass sound system, comprising a bass unit and two groups of symmetrically arranged full-range units, wherein the bass unit can be arranged in the middle of a sofa, and the two groups of full-range units can be arranged on both sides of the sofa; the full-range unit and the bass unit both comprise a basin frame, a Washi magnetic conductive plate is fixed on the basin frame, a Y35 ferrite magnet is fixed on the Washi magnetic conductive plate, a T-iron magnetic conductive plate is fixed on the Y35 ferrite magnet, wherein the Y35 ferrite magnet is arranged between the T-iron magnetic conductive plate and the Washi magnetic conductive plate, A cylindrical protrusion is provided in the middle of the T-iron magnetic conductive plate, a voice coil column is slidingly sleeved on the cylindrical protrusion, an active basin paper is fixed on the top of the voice coil column, and the top edge of the active basin paper is elastically connected to the top edge of the basin frame through an active elastic ring; the full-range unit also includes a full-range shell for fixing the basin frame; micro-displacement sensors are provided on the bass passive paper cone and the active basin paper for real-time monitoring of the displacement and acceleration states of the bass passive paper cone, the voice coil column and the active basin paper, as well as the stress states of the corresponding passive elastic ring, the vibration elastic wave support plate and the active elastic ring.

[0004] Preferably, the active elastic ring is mainly made of rubber, and the rubber has multiple layers of nanographene material and memory alloy layers stacked alternately inside. The nanographene material layers are used to reduce the mass of the active elastic ring, and the memory alloy is used to provide deformation adjustment.

[0005] Preferably, an annular pressure frame is fixedly provided on the top of the full-range housing in the full-range unit, and a buffer foam is arranged at the contact position between the annular pressure frame and the edge of the active elastic ring, an iron mesh is arranged on the contact position between the annular pressure frame and the annular pressure frame, and a buffer foam is arranged at the contact position between the iron mesh and the annular pressure frame, and the iron mesh is snap-fitted and buckled on the outer circumferential surface of the annular pressure frame.

[0006] Preferably, the full-range shell in the full-range unit is fixedly connected to the sofa body through a mesh frame, the basin frame in the bass unit is fixed to the bass wooden box through a mesh frame and an annular downward pressure frame, and the bass wooden box is also equipped with a bass air duct, which is used to balance the pressure difference inside and outside the bass wooden box, and the bass wooden box is fixedly matched with the sofa body.

[0007] Preferably, the edge of the full-range housing in the full-range unit away from the iron mesh is elastically matched with a bass passive paper cone through a passive elastic ring, so that the bass passive paper cone and the passive elastic ring constitute a passive cone, wherein the passive elastic ring is mainly made of rubber, and the rubber has multiple layers of nanographene material and memory alloy layers stacked alternately, the nanographene material layer is used to reduce the mass of the passive elastic ring, and the memory alloy is used to provide deformation adjustment. It should be noted that the graphene material and memory alloy in the active elastic ring and the passive elastic ring are mainly used as filling materials inside the rubber (accounting for less than 20% of the total amount of rubber, the purpose is to ensure the overall softness, so that the active cone paper and the bass passive cone can move freely), which are used to change the elasticity of the rubber.

[0008] Preferably, the woofer and the full-range unit also include a vibration damper support plate, which is used to elastically connect the voice coil column and the basin frame together, wherein the vibration damper support plate is composed of multiple layers of nano-graphene material and memory alloy layers stacked alternately, the nano-graphene material layer is used to reduce the mass of the vibration damper support plate, and the memory alloy is used to provide deformation adjustment.

[0009] Preferably, dust caps of different shapes are fixedly provided on the active basin papers in the woofer and the full-range unit, respectively, wherein the dust cap provided on the woofer is in a flat plate shape, while the dust cap provided on the full-range unit is in an arc-shaped convex shape.

[0010] Preferably, the memory alloy layer deforms under the control of current and voltage, adjusting the shape and tension of the passive elastic ring, the vibration elastic wave support and the active elastic ring, thereby adjusting the amplitude of the bass passive cone and the active cone under the same audio signal and changing the quality of the sound emitted.

[0011] Preferably, the micro displacement sensor includes a first laser and a second laser which are obliquely fixed on the inner wall of the full-frequency housing, wherein the first laser is installed at a position close to the mesh frame, and a light hole is provided on the basin frame for allowing the light emitted by the first laser to pass through, and a reflective coating is provided on the outer surface of the active basin paper so that the light emitted by the first laser is reflected onto the first light sensor, and the first light sensor is fixed to the basin frame through a first light sensor bracket; wherein the second laser is installed at a position close to the bass passive paper cone, and a second light sensor symmetrically arranged with the second laser is also fixedly installed on the inner wall of the full-frequency housing, the second light sensor is used to receive the light emitted by the second laser, and a reflective coating is provided at the center of the bass passive paper cone so that the light emitted by the second laser is reflected onto the second light sensor. The reflective coatings on the active cone and the bass passive cone can be replaced by a reflector. The position where the active cone contacts the light emitted by the first laser is set in a plane. When the active cone pushes the air to move (in the process of emitting sound), the distance between the active cone and the first laser will change, resulting in different positions where the light emitted by the first laser is reflected on the first light sensor. The first light sensor uses a camera sensor to determine the displacement and acceleration of the active cone according to the light received by the corresponding pixel (because the position of the pixel is determined). Since the active cone and the voice coil column are fixed, the displacement and acceleration of the voice coil column can also be detected. Similarly, when the bass passive cone moves, the distance between the second laser and the bass passive cone will also change, thereby changing the position where the light emitted by the second laser is reflected on the second light sensor. Both the first light sensor and the second light sensor use camera sensors to receive light.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention introduces multilayer nanographene materials into the active elastic ring, the passive elastic ring and the vibration damper. These graphene layers greatly reduce the mass of the components and reduce the inertia effect, so that the sound system can respond to changes in the audio signal more quickly. This rapid response capability significantly improves the clarity and detail of the sound, especially when reproducing complex music and high dynamic range audio, it can provide a more accurate and realistic sound quality experience; (2) The present invention can adjust the shape and tension of the active elastic ring, the passive elastic ring and the vibration damper in real time by embedding a memory alloy layer in the component and controlling its deformation by current and voltage. This dynamic adjustment capability enables the sound system to optimize the physical parameters of the component in real time according to different audio signal characteristics, ensuring that the optimal amplitude and damping characteristics can be maintained at various frequencies and volumes, thereby improving the accuracy and consistency of audio playback; (3) The micro displacement sensor and external microphone array provided in the present invention monitor the displacement, acceleration, stress state and output sound data of the component in real time. These feedback data are used to continuously optimize the deep learning model and control algorithm to achieve adaptive control. Through this closed-loop feedback mechanism, the audio system can automatically adjust its own parameters in different environments and sound sources to ensure that the best audio experience is always provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a position distribution diagram of the full-range unit and the bass unit of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the bass unit of the present invention.

[0015] Figure 3 It is a schematic diagram of the full-frequency power supply structure of the present invention.

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle.

[0017] In the figure: 101-full-frequency housing; 102-passive bass paper cone; 103-passive elastic ring; 104-Y35 ferrite magnet; 105-T iron magnetic plate; 106-washer magnetic plate; 107-bass frame; 108-vibration elastic wave support; 109-voice coil column; 110-active basin paper; 111-active elastic ring; 112-iron net; 113-dust cap; 114-net frame; 115-annular downward pressure frame; 116-bass air duct; 117-bass wooden box; 118-light hole; 119-first laser; 120-first light sensor; 121-first light sensor bracket; 122-second laser; 123-second light sensor. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-4 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0019] The present invention provides a high-fidelity bass sound system, comprising a bass unit and two groups of symmetrically arranged full-frequency units, wherein the bass unit can be arranged in the middle of a sofa, and the two groups of full-frequency units can be arranged on both sides of the sofa; the full-frequency unit and the bass unit both comprise a basin frame 107, a Washer magnetic conductive plate 106 is fixed on the basin frame 107, a Y35 ferrite magnet 104 is fixed on the Washer magnetic conductive plate 106, a T-iron magnetic conductive plate 105 is fixed on the Y35 ferrite magnet 104, wherein The Y35 ferrite magnet 104 is arranged between the T-iron magnetic conductive plate 105 and the washer magnetic conductive plate 106, and a cylindrical protrusion is arranged in the middle of the T-iron magnetic conductive plate 105, and a voice coil column 109 is slidably sleeved on the cylindrical protrusion, and an active basin paper 110 is fixed on the top of the voice coil column 109, and the top edge of the active basin paper 110 is elastically connected to the top edge of the basin frame 107 through an active elastic ring 111; the full-range unit also includes a full-range housing 101 that fixes the basin frame 107. The active elastic ring 111 is mainly made of rubber, and multiple layers of nanographene material and memory alloy layers are alternately stacked inside the rubber, and the nanographene material layer is used to reduce the mass of the active elastic ring 111, and the memory alloy is used to provide deformation adjustment. The top of the full-range housing 101 in the full-range unit is fixedly provided with an annular downward pressing frame 115, and the contact position of the annular downward pressing frame 115 with the edge of the active elastic ring 111 is provided with a buffer foam, and the contact position of the annular downward pressing frame 115 is provided with an iron net 112, and the contact position of the iron net 112 with the annular downward pressing frame 115 is provided with a buffer foam, and the iron net 112 is snap-fitted and buckled on the outer circumferential surface of the annular downward pressing frame 115. The full-range housing 101 in the full-range unit is fixedly connected to the sofa body through a mesh frame 114, and the basin frame 107 in the bass unit is fixed to the bass wooden box 117 through the mesh frame 114 and the annular downward pressing frame 115, and the bass wooden box 117 is also provided with a bass air duct 116, and the bass air duct 116 is used to balance the pressure difference between the inside and outside of the bass wooden box 117, and the bass wooden box 117 is fixedly matched with the sofa body.

[0020] The edge of the full-range housing 101 in the full-range unit away from the iron mesh 112 is elastically matched with the bass passive paper cone 102 through the passive elastic ring 103, so that the bass passive paper cone 102 and the passive elastic ring 103 constitute a passive cone, wherein the passive elastic ring 103 is mainly made of rubber, and the rubber has multiple layers of nanographene materials and memory alloy layers stacked alternately, the nanographene material layer is used to reduce the mass of the passive elastic ring 103, and the memory alloy is used to provide deformation adjustment. It should be noted that the graphene material and the memory alloy in the active elastic ring 111 and the passive elastic ring 103 are mainly used as filling materials inside the rubber (accounting for less than 20% of the total amount of rubber, the purpose is to ensure the overall softness, so that the active cone paper 110 and the bass passive paper cone 102 can move freely), which is used to change the elasticity of the rubber.

[0021] Both the woofer and the full-range unit also include a vibration damper support piece 108, which is used to elastically connect the voice coil column 109 and the basin frame 107 together, wherein the vibration damper support piece 108 is composed of multiple layers of nano-graphene material and memory alloy layers stacked alternately, the nano-graphene material layer is used to reduce the mass of the vibration damper support piece 108, and the memory alloy is used to provide deformation adjustment.

[0022] The active cone 110 in the woofer and full-range unit is respectively fixed with dust caps 113 of different shapes, wherein the dust cap 113 on the woofer is in the shape of a flat plate, while the dust cap 113 on the full-range unit is in the shape of an arc-shaped convex. The memory alloy layer deforms under the control of current and voltage, adjusts the shape and tension of the passive elastic ring 103, the vibration damper support piece 108 and the active elastic ring 111, and then adjusts the amplitude of the woofer passive cone 102 and the active cone 110 under the same audio signal, changing the sound quality. Micro displacement sensors are arranged on the woofer passive cone 102, the voice coil column 109 and the active cone 110, which are used to monitor the displacement, acceleration and stress state of the passive elastic ring 103, the vibration damper support piece 108 and the active elastic ring 111 in real time.

[0023] The working principle of a fidelity-level bass sound system disclosed in the present invention is as follows: the original audio signal from various sound sources is received through a high-sensitivity input interface. In order to ensure the integrity of the signal, the input interface has anti-interference and signal amplification functions. The original audio signal may contain noise and distortion, so it is first filtered and denoised through a preprocessing module. The preprocessed analog audio signal is converted into a digital signal. An analog-to-digital converter (sampling rate 768kHz, quantization accuracy of 32 bits) is used to ensure that the details of the audio signal are completely retained. For the accuracy of subsequent processing, the sampling process is time synchronized. The digital signal enters the digital signal processor, and firstly performs a fast Fourier transform to convert the time domain signal into a frequency domain signal to obtain the spectrum information of the audio signal. The spectrum is divided into multiple frequency bands, focusing on the low frequency (20Hz-200Hz) part, while taking into account the harmonic components of the medium and high frequencies, and fully understanding the frequency distribution of the audio signal. The energy distribution of each frequency band is calculated to identify the strength and change trend of the low frequency signal. A trained deep neural network model is integrated in the digital signal processor, which is pre-trained on a large number of music and sound data sets and can understand the complex patterns of audio signals. The model is used to make short-term and medium-term predictions of the current audio signal, and to predict upcoming changes in low-frequency signals. This allows the status of the passive elastic ring 103, the vibration damper 108, and the active elastic ring 111 to be adjusted in advance, reducing the delay of physical adjustment. Based on real-time feedback data, such as output audio quality, the status of the passive elastic ring 103, the vibration damper 108, and the active elastic ring 111, the parameters are continuously optimized to improve the accuracy of the prediction.

[0024] The spectrum analysis results and prediction data of the audio signal are input into the optimization model to calculate the physical parameters that need to be adjusted for the passive elastic ring 103, the vibration elastic wave support piece 108 and the active elastic ring 111. In order to meet the real-time requirements, parallel computing and dedicated hardware accelerators are used. At the same time, the accuracy of the calculation results is ensured to achieve the best audio playback effect. The output parameters are converted into digital control instructions, including specific control quantities of current, voltage and signal waveform. In order to ensure the accuracy of the control instructions, a verification mechanism and redundant design are added to prevent errors in the data transmission process from causing abnormal control of the passive elastic ring 103, the vibration elastic wave support piece 108 and the active elastic ring 111. Since the bass unit and multiple full-range units need to work together, the control instructions of each channel need to be time synchronized to prevent sound quality problems caused by phase differences (using a high-speed serial interface based on optical fiber).

[0025] The graphene layers in the passive elastic ring 103, the vibration elastic wave support piece 108 and the active elastic ring 111 can respond to electrical signals quickly and reduce the delay caused by inertia (it has high conductivity and high strength, can quickly conduct electrical signals and mechanical vibrations, and reduce energy loss). The memory alloy layer is embedded between the graphene layers (nickel-titanium alloy). Its deformation can be accurately controlled by electric current, and by changing the electric field applied by the memory alloy layer, the internal lattice undergoes a phase change, resulting in a change in shape (adjusting curvature and tension), thereby changing the sound vibration (changing the damping characteristics of the passive elastic ring 103, the vibration elastic wave support piece 108 and the active elastic ring 111 to adapt to different low-frequency response requirements). The amplitude of the air pushed by the active basin paper 110 changes under the same magnetic field strength. Micro displacement sensors are provided on the bass passive paper cone 102 and the active paper cone 110 to monitor the displacement and acceleration state of the bass passive paper cone 102, the voice coil column 109 and the active paper cone 110 in real time, as well as the stress state of the corresponding passive elastic ring 103, the vibration damper support piece 108 and the active elastic ring 111, and feed the data back to the control system. An external microphone array is provided on multiple potentials of the sofa to collect the output sound data in real time as a basis for further optimization. According to the feedback data, adaptive control is realized to achieve the best sound performance in various environments and sound sources.

[0026] The micro displacement sensor comprises a first laser 119 and a second laser 122 which are fixed obliquely on the inner wall of the full-frequency housing 101, wherein the first laser 119 is installed at a position close to the mesh frame 114, and a light hole 118 is provided on the basin frame 107 for allowing the light emitted by the first laser 119 to pass through, and a reflective coating is provided on the outer surface of the active basin paper 110 so that the light emitted by the first laser 119 is reflected onto the first light sensor 120, and the first light sensor 120 is fixed to the basin frame 107 through a first light sensor bracket 121; wherein the second laser 122 is installed at a position close to the bass passive paper cone 102, and a second light sensor 123 symmetrically arranged with the second laser 122 is also fixedly installed on the inner wall of the full-frequency housing 101, and the second light sensor 123 is used to receive the light emitted by the second laser 122, and a reflective coating is provided at the center of the bass passive paper cone 102 so that the light emitted by the second laser 122 is reflected onto the second light sensor 123. The reflective coatings provided on the active basin 110 and the bass passive basin 102 can be replaced by reflectors. The position where the active basin 110 contacts the light emitted by the first laser 119 is arranged in a plane. When the active basin 110 pushes the air to move (in the process of emitting sound), the distance between the active basin 110 and the first laser 119 will change, thereby causing the light emitted by the first laser 119 to be reflected at different positions on the first light sensor 120. The first light sensor 120 uses a camera sensor to determine the displacement and acceleration of the active basin 110 according to the light received by the corresponding pixel (because the position of the pixel is determined). Since the active basin 110 and the voice coil column 109 are fixed, the displacement and acceleration of the voice coil column 109 can also be detected. Similarly, when the bass passive basin 102 moves, the distance between the second laser 122 and the bass passive basin 102 will also change, thereby changing the position where the light emitted by the second laser 122 is reflected on the second light sensor 123. The first light sensor 120 and the second light sensor 123 both use camera sensors to receive light.

Claims

1. A high-fidelity bass sound system, characterized by: It includes a bass unit and two groups of symmetrically arranged full-range units, wherein the bass unit can be arranged in the middle of the sofa, and the two groups of full-range units can be arranged on both sides of the sofa; The full-range unit and the bass unit both comprise a basin frame (107), a washer magnetic conductive plate (106) is fixed on the basin frame (107), a Y35 ferrite magnet (104) is fixed on the washer magnetic conductive plate (106), a T-iron magnetic conductive plate (105) is fixed on the Y35 ferrite magnet (104), wherein the Y35 ferrite magnet (104) is arranged between the T-iron magnetic conductive plate (105) and the washer magnetic conductive plate (106), and a cylindrical protrusion is arranged in the middle of the T-iron magnetic conductive plate (105), a voice coil column (109) is slidably sleeved on the cylindrical protrusion, an active basin paper (110) is fixed on the top of the voice coil column (109), and the top edge of the active basin paper (110) is elastically connected to the top edge of the basin frame (107) through an active elastic ring (111); the full-range unit also comprises a full-range housing (101) for fixing the basin frame (107); Micro displacement sensors are arranged on the bass passive paper cone (102) and the active paper cone (110) to monitor the displacement and acceleration states of the bass passive paper cone (102), the voice coil column (109) and the active paper cone (110) in real time, as well as the stress states of the corresponding passive elastic ring (103), the vibration damper support piece (108) and the active elastic ring (111).

2. The high-fidelity bass sound system according to claim 1, characterized in that: The active elastic ring (111) is mainly made of rubber, and multiple layers of nanographene material and memory alloy layers are alternately stacked inside the rubber. The nanographene material layers are used to reduce the mass of the active elastic ring (111), and the memory alloy is used to provide deformation adjustment.

3. The high-fidelity bass sound system according to claim 2, characterized in that: An annular pressing frame (115) is fixedly arranged on the top of a full-range housing (101) in the full-range unit, a cushioning foam is arranged at the edge contact position of the annular pressing frame (115) and the active elastic ring (111), an iron net (112) is arranged on the annular pressing frame (115), a cushioning foam is arranged at the contact position of the iron net (112) and the annular pressing frame (115), and the iron net (112) is snap-fitted and buckled on the outer circumferential surface of the annular pressing frame (115).

4. The high-fidelity bass sound system according to claim 3, characterized in that: The full-range housing (101) in the full-range unit is fixedly connected to the sofa body through a mesh frame (114); the basin frame (107) in the bass unit is fixed to the bass wooden box (117) through the mesh frame (114) and the annular downward pressure frame (115); the bass wooden box (117) is also provided with a bass air duct (116); the bass air duct (116) is used to balance the pressure difference between the inside and outside of the bass wooden box (117); the bass wooden box (117) is fixedly matched with the sofa body.

5. The high-fidelity bass sound system according to claim 4, characterized in that: The edge of the full-range housing (101) in the full-range unit, which is away from the iron mesh (112), is elastically matched with a bass passive paper cone (102) through a passive elastic ring (103), so that the bass passive paper cone (102) and the passive elastic ring (103) form a passive cone, wherein the passive elastic ring (103) is mainly made of rubber, and the rubber has multiple layers of nanographene material and memory alloy layers stacked alternately, the nanographene material layer is used to reduce the mass of the passive elastic ring (103), and the memory alloy is used to provide deformation adjustment.

6. The high-fidelity bass sound system according to claim 5, characterized in that: The bass unit and the full-range unit also include a vibration elastic wave support piece (108), which is used to elastically connect the voice coil column (109) and the basin frame (107), wherein the vibration elastic wave support piece (108) is composed of multiple layers of nanographene material and memory alloy layers stacked alternately, the nanographene material layer is used to reduce the mass of the vibration elastic wave support piece (108), and the memory alloy is used to provide deformation adjustment.

7. The high-fidelity bass sound system according to claim 6, characterized in that: Dust caps (113) of different shapes are fixedly arranged on the active basin papers (110) in the bass unit and the full-range unit, respectively, wherein the dust cap (113) arranged on the bass unit is in a flat plate shape, while the dust cap (113) arranged on the full-range unit is in an arc-shaped convex shape.

8. The high-fidelity bass sound system according to claim 7, characterized in that: The memory alloy layer deforms under the control of current and voltage, adjusting the shape and tension of the passive elastic ring (103), the vibration elastic wave support sheet (108) and the active elastic ring (111), thereby adjusting the amplitude of the bass passive cone (102) and the active cone paper (110) under the same audio signal, thereby changing the quality of the sound emitted.

9. The high-fidelity bass sound system according to claim 8, characterized in that: The micro displacement sensor comprises a first laser (119) and a second laser (122) which are fixed obliquely on the inner wall of a full-frequency housing (101), wherein the first laser (119) is installed at a position close to a mesh frame (114), and a light-through hole (118) is provided on a basin frame (107) through which light emitted by the first laser (119) can pass, and a reflective coating is provided on the outer surface of an active basin paper (110) so that light emitted by the first laser (119) is reflected onto a first light sensor (120), and the first light sensor (120) is fixed on the basin frame (107) via a first light sensor bracket (121); The second laser (122) is installed at a position close to the bass passive paper cone (102), and a second light sensor (123) symmetrically arranged with the second laser (122) is fixedly installed on the inner wall of the full-range housing (101). The second light sensor (123) is used to receive the light emitted by the second laser (122). A reflective coating is arranged at the center of the bass passive paper cone (102) so that the light emitted by the second laser (122) is reflected to the second light sensor (123).

Images