Loudspeaker anti-shake structure and sound box

Abstract

The utility model belongs to the technical field of sound equipment, and provides a loudspeaker anti-shake structure and sound equipment, which comprise a loudspeaker and an anti-shake device. The loudspeaker is provided with a sound output end and a tail end; the anti-shake device comprises a rotating assembly, the rotating assembly is provided with a rotating shaft, and one end of the rotating shaft is connected with the tail end of the loudspeaker. The anti-shake structure of the loudspeaker is arranged at the tail end of the loudspeaker, and circumferential and irregular vibration generated when the loudspeaker works is counteracted through high-speed rotation work of the anti-shake device, so that phase jitter generated by other vibration interference in the loudspeaker is reduced, noise and distortion are reduced, and the service life of the loudspeaker is prolonged. The sound wave radiated by the loudspeaker is consistent with the added audio signal in time domain and frequency domain, and the phase is consistent, so that the tone quality is clearer and more accurate, and the layering sense, the positioning sense and the space sense of the whole sound system are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of audio, and in particular relates to an anti-shake structure of a loudspeaker and an audio. Background Art

[0002] An excellent sound system can make listeners feel as if they are in the scene. In the sound equipment system, the following elements are extremely important: (1) Sound field: The sense of direction and space presented by the sound in space, so that the sound can be accurately positioned in the space, making the sound more vivid and realistic. (2) Sense of hierarchy: The hierarchy and separation between different sounds, which clearly separate the sounds of different sound sources to avoid mutual interference and confusion. (3) Sense of positioning: The accurate position of the sound in space. Accurately positioning the position of the sound source in the listener's auditory space plays a key role in the overall expressiveness and listening experience of the sound system. (4) Imaging and sense of form: The stability and clarity of the virtual image formed by the sound, as well as the sense of form of the sound. (5) Sense of space: The distribution and expansion of sound in three-dimensional space.

[0003] Speakers play an important role in sound, converting audio signals (electrical signals) into mechanical vibrations to generate sound signals (sound waves). When the speaker is working, the circular and irregular vibrations generated will cause resonance between the speaker and the sound box in addition to normal audio vibrations, making the sound quality of the sound system turbid or noisy (such as Figure 1 ).

[0004] Ideally, the sound radiated by the speaker is a reproduction of the added audio signal. However, in reality, the radiated sound contains noise caused by vibrations of other frequencies in addition to the fundamental frequency signal.

[0005] Other common situations where vibration produces noise: (1) At low frequencies, the speaker has a large amplitude, and the vibration system such as the voice coil, paper cone, and elastic wave is prone to non-linear distortion. When the volume is adjusted to a high level, the distortion will make the high pitch harsh, the mid-range unclear, and the low pitch muddy. (2) When the speaker is disturbed by external vibrations or there is a sudden disturbance when the speaker is working, the sounds generated by two vibrations of different frequencies are superimposed, which can easily cause distortion of the audio signal in the time domain and frequency domain.

[0006] Therefore, an anti-shake structure is needed to offset the circular and irregular vibrations generated by the speakers in the audio system, reduce phase jitter, and thus reduce other vibrations in the speakers that interfere with the sound quality, reduce noise and distortion, make the sound quality more accurate and clear, and further enhance the sense of hierarchy, positioning, and space of the audio system. Utility Model Content

[0007] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a speaker anti-shake structure.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A speaker anti-shake structure, comprising:

[0010] Speakers and anti-shake device;

[0011] The speaker has a sound output end and a tail end;

[0012] The anti-shake device comprises a rotating assembly, wherein the rotating assembly is provided with a rotating shaft, and one end of the rotating shaft is connected to the rear end of the speaker.

[0013] Preferably, the loudspeaker and anti-shake device are coaxially arranged.

[0014] Preferably, the rotating component is a gyro motor.

[0015] Preferably, the gyro motor comprises an outer stator coil, an inner rotor magnet and a fixed bearing, and the rotating shaft cooperates with the fixed bearing.

[0016] The utility model also provides a sound system, comprising a sound system box and the above-mentioned speaker anti-shake structure, wherein the speaker anti-shake structure is installed on the sound system box.

[0017] Preferably, a support frame is provided in the sound box, the anti-shake device is fixed to the support frame, and the sound output end of the speaker is provided at the sound output part of the sound box.

[0018] Preferably, a mounting portion is provided on the support frame, and the mounting portion is used for fixing and mounting the anti-shake device.

[0019] Preferably, the sound outlet portion of the sound box is an open structure, the sound outlet portion is provided with a first groove, a flexible member is provided at the first groove, and the sound outlet end of the speaker is connected to the flexible member.

[0020] Preferably, the flexible member is arranged on the end surface and the outer periphery of the sound output end of the speaker.

[0021] Preferably, the flexible member is made of EVA cotton, rubber or polyester.

[0022] Compared with the prior art, the beneficial effects of the utility model include:

[0023] The speaker anti-shake structure designed in the present application offsets the circular and irregular vibrations generated by the speaker when it is working through the high-speed rotation of the anti-shake device, thereby reducing the noise and distortion caused by other vibration interference caused by external environmental interference or sudden disturbances in the speaker, reducing phase jitter, and making the sound waves radiated by the speaker consistent with the added audio signal in the time domain and frequency domain, thereby improving the accuracy and clarity of the sound, and further enhancing the layering, positioning, and spatial sense of the overall sound system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a diagram of the working state of a speaker in the prior art.

[0026] Figure 2 It is a three-dimensional view of the speaker anti-shake structure of the utility model.

[0027] Figure 3 It is a partial schematic diagram of the speaker anti-shake structure of the utility model being installed on a sound system.

[0028] Figure 4 It is a schematic diagram of the internal structure of the speaker of the present utility model.

[0029] Figure 5 It is a front view of the speaker of the present utility model.

[0030] Figure 6 It is a structural schematic diagram of the gyro motor of the utility model.

[0031] Figure 7 This is a schematic diagram of a usage scenario of the present utility model.

[0032] in:

[0033] 1-sound box, 2-speaker, 3-support frame, 4-flexible part, 5-gyro motor, 6-first groove, 7-installation part, 8-interface cover, 9-interface part, 10-voice coil motor, 11-outer stator coil, 12-inner rotor magnet, 13-fixed bearing, 14-magnet part, 15-coil part. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] Example:

[0037] First embodiment:

[0038] like Figures 2 to 6 As shown, in this embodiment, a speaker anti-shake structure is provided, which is installed in a speaker box 1 of the speaker. The speaker anti-shake structure includes a speaker 2 and an anti-shake device; a support frame 3 for fixing the anti-shake device is provided in the speaker box 1;

[0039] The speaker has a sound output end and a tail end, and the anti-shake device includes a rotating assembly, the rotating assembly is provided with a rotating shaft, and one end of the rotating shaft is connected to the tail end of the speaker. The speaker and the anti-shake device are coaxially arranged.

[0040] Specifically in this embodiment, the rotating assembly is a gyro motor 5 , which includes an outer stator coil 8 , an inner rotor magnet 9 and a fixed bearing 10 , and the rotating shaft cooperates with the fixed bearing 10 .

[0041] The speaker anti-shake structure designed in this embodiment has an anti-shake device at the rear end of the speaker 2. When the speaker 2 in the sound box is working, the anti-shake device is powered at the same time, so that the gyro motor 5 of the anti-shake device rotates. When the rotation axis rotates at high speed, it can keep itself stable and not tilted. This stability comes from the balance between the angular momentum of the gyro's positive motion (forward) and the external force. Therefore, the rotation axis of the gyro motor 5 is perpendicular to the gravitational acceleration, that is, it presents a vector cross product relationship.

[0042] When a torque disturbance is applied to the speaker 2, such as interference vibration from the external environment or sudden disturbance when the speaker 2 is working, the gyro motor 5 will generate a pre-precession to maintain the torque, that is, the entire rotation axis rotates along a conical surface instead of tilting. Therefore, when the gyro motor 5 rotates fast enough, its axial stability enables it to maintain its own direction unchanged, and even in the case of sudden jitter in the external environment, the gyro motor 5 itself can adjust itself to eliminate sensitive noise. The sound waves that may occur when the gyro motor 5 rotates at high speed will not be affected by the sound quality of the sound and will not be captured by the human ear because of their regular and periodic offset characteristics. Therefore, the high-speed rotation of the anti-shake device can eliminate the circumferential and irregular vibrations generated when the speaker is working, reduce the vibration amplitude of the speaker, and thus reduce the amplitude angle θ of the speaker, see. Figure 2 , thereby reducing the noise generated by the speakers and making the sound quality clearer.

[0043] In this embodiment, a mounting portion 7 is provided on the support frame, and the mounting portion 7 is used to fix the anti-shake device. The anti-shake device is fixed by the support frame and the mounting portion 7, so that the vibration caused by the speaker 2 can be reduced.

[0044] The sound box 1 is provided with a sound outlet with an open structure, and the sound outlet is provided with a first groove 6. The flexible member 4 cooperates with the first groove 6. The flexible member 4 is arranged around the end surface and the periphery of the sound outlet of the speaker 2. Because in the traditional structure, after the speaker is rigidly installed in the sound box, the sound short circuit is prevented. The vibration kinetic energy of the speaker itself acts on the sound box, causing the sound box to vibrate, and the resonance reduces the sound quality. Therefore, the flexible member 4 can achieve a flexible connection structure to reduce the up and down amplitude caused by the sound wave resonance at the sound outlet of the speaker 2.

[0045] In this embodiment, the flexible member 4 can be made of PU foam, EVA foam, composite pearl cotton, sponge, rubber and the like.

[0046] like Figure 4 In the audio system provided in this embodiment, the speaker anti-shake structure is installed in the audio box 1 of the audio system.

[0047] See also Figure 7This is a schematic diagram of the usage scenario. The relative positions of the speakers and the user in this embodiment are arranged according to the above positions. The two stereo sound systems are facing the user and are at the same distance. They have a physical sense of direction and space. The sound produced by the two speakers takes the same time to reach the user and has the same phase. Combined with the above position arrangement and anti-shake structure, the position of the sound source can be accurately located in the listener's auditory space, and different frequency sounds can be clearly separated without confusion. The anti-shake structure helps stabilize the audio signal and reduce phase jitter, making the stereo sound effect clearer and more accurate, with a sense of layering, positioning, and space, ensuring that the sound effect heard by the user is the best when the user is in the best sound effect area.

[0048] To sum up, the speaker anti-shake structure designed in this embodiment offsets the circular and irregular vibrations generated by the speaker when it is working through the high-speed rotation of the anti-shake device, thereby reducing the noise and distortion caused by other vibration interference caused by external environmental interference or sudden disturbances in the speaker, reducing phase jitter, and making the sound waves radiated by the speaker consistent with the added audio signal in the time domain and frequency domain, thereby improving the accuracy and clarity of the sound, and further enhancing the layering, positioning, and spatial sense of the overall sound system.

[0049] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A speaker anti-shake structure, characterized in that: include: Speakers and anti-shake device; The speaker has a sound output end and a tail end; The anti-shake device comprises a rotating assembly, wherein the rotating assembly is provided with a rotating shaft, and one end of the rotating shaft is connected to the rear end of the speaker.

2. The speaker anti-shake structure according to claim 1, characterized in that: The loudspeaker and the anti-shake device are coaxially arranged.

3. The speaker anti-shake structure according to claim 1, characterized in that: The rotating component is a gyro motor.

4. The speaker anti-shake structure according to claim 3, characterized in that: The gyro motor comprises an outer stator coil, an inner rotor magnet and a fixed bearing, and the rotating shaft matches the fixed bearing.

5. A sound system, characterized in that: It comprises an audio box and the speaker anti-shake structure according to any one of claims 1 to 4, wherein the speaker anti-shake structure is installed on the audio box.

6. The sound system according to claim 5, characterized in that: A support frame is arranged in the sound box, the anti-shake device is fixed to the support frame, and the sound output end of the speaker is arranged at the sound output part of the sound box.

7. The sound system according to claim 6, characterized in that: The support frame is provided with a mounting portion, and the mounting portion is used for fixing and mounting the anti-shake device.

8. The sound system according to claim 6, characterized in that: The sound outlet of the sound box is an open structure, the sound outlet is provided with a first groove, a flexible member is provided at the first groove, and the sound outlet end of the speaker is connected to the flexible member.

9. The sound system according to claim 8, characterized in that: The flexible member is arranged in a ring on the end surface and the outer periphery of the sound output end of the speaker.

10. The sound system according to claim 9, characterized in that: The material of the flexible member is EVA cotton, rubber or polyester.

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