A speaker magnetic levitation suspension noise reduction conference audio device

Abstract

This invention discloses a speaker magnetic levitation suspension noise reduction conference audio device. When the audio device emits sound or is subjected to external impact, the repulsive force between the first and second magnets, combined with the attractive force between the fourth and third magnets, and the restraining force of the connecting rope, ensures that the speaker remains suspended within the housing cavity, achieving non-contact vibration reduction and effectively avoiding contact noise. Compared to using springs or sliding rails, the connecting rope primarily serves a longitudinal positioning and restraining function. The distance between the fourth and third magnets only increases, never decreases, effectively preventing collisions between them. Springs, on the other hand, undergo bidirectional deformation, which could lead to the fourth and third magnets breaking upon impact. Furthermore, the energy stored in the spring during deformation generates noise. The connecting rope effectively solves this noise generation problem.

Description

Technical Field

[0001] This invention relates to the field of speaker magnetic levitation suspension noise reduction conference audio equipment, and more particularly to a speaker magnetic levitation suspension noise reduction conference audio equipment. Background Technology

[0002] Magnetic levitation audio devices are mainly divided into two categories: one is externally levitated (i.e., the speaker levitates outside the casing), and the other is internally levitated (i.e., the speaker levitates inside the casing). Internally levitated audio devices differ from externally levitated ones. In addition to the magnetic structure, internally levitated audio devices also require a positioning structure between the casing and the speaker to prevent the internally levitated speaker from tipping over when subjected to significant impact.

[0003] Traditional positioning structures use springs, sliding rails, or air springs. These connect the speaker and the housing using springs, or sliding rails or air springs. These positioning structures are contact-based damping; the speaker's vibrations are transmitted to the springs or sliding rails, then to the housing, and finally into the microphone, generating noise and affecting sound quality. Furthermore, springs are bi-directional deformation structures, and sliding rails are also bi-directional sliding structures. Excessive bi-directional deformation or sliding can cause the opposing magnets to collide, potentially leading to magnet breakage. Summary of the Invention

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a speaker magnetic levitation suspension noise reduction conference audio device, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a speaker magnetic levitation suspension noise reduction conference audio device, comprising, A first housing having a receiving cavity, and sound outlet holes communicating with the receiving cavity penetrating the inner and outer surfaces of the first housing; and, The loudspeaker includes a second housing and a speaker unit disposed on the second housing; a plurality of first magnets are provided on the outer walls of the second housing, and a plurality of second magnets corresponding to the first magnets are provided on the inner walls of the receiving cavity; the magnetic poles of the second magnets and the first magnets are the same at their near ends, and the second magnets and the first magnets repel each other; The second housing has a third magnet on its top outer wall and a fourth magnet on its top inner wall. The magnetic poles of the fourth magnet and the third magnet are opposite at their near ends, and the fourth magnet and the third magnet attract each other. A connecting rope connects the bottom outer wall of the second housing and the bottom inner wall of the first housing, and the connecting rope restrains the attraction force.

[0006] In one embodiment, the connecting rope is a cotton thread or an aramid fiber rope.

[0007] In one embodiment, the upper end of the connecting rope is fastened to the notch of the second housing by a first hard rubber buckle; the lower end of the connecting rope is fixed to the mounting hole of the first housing by a second hard rubber buckle.

[0008] In one embodiment, there are four connecting ropes, which are respectively connected to the four corners of the first and second housings.

[0009] In one embodiment, a first magnet is provided on at least two opposing outer sidewalls of the second housing; correspondingly, a second magnet is provided on at least two opposing inner sidewalls of the receiving cavity, the second magnet repelling the first magnet.

[0010] In one embodiment, a first magnet is provided on the front outer wall, rear outer wall, left outer wall and right outer wall of the second housing; correspondingly, a second magnet is provided on the front inner wall, rear inner wall, left inner wall and right inner wall of the receiving cavity, and each second magnet repels the corresponding first magnet.

[0011] In one embodiment, a first magnet is provided at each of the four corners of the front outer wall, rear outer wall, left outer wall, and right outer wall; correspondingly, a second magnet is provided at each of the four corners of the front inner wall, rear inner wall, left inner wall, and right inner wall, and each second magnet repels the corresponding first magnet.

[0012] In one embodiment, the third magnet is a magnet, and correspondingly, the fourth magnet is a magnet or a magnetic metal block, and the third magnet and the fourth magnet are attracted to each other; Alternatively, the fourth magnet is a magnet, and the corresponding third magnet is a magnet or a magnetic metal block, and the third magnet is attracted to the fourth magnet.

[0013] In one embodiment, a reflector cone is further included, which is disposed on the connecting rope and close to the sound-emitting end of the speaker unit.

[0014] In one embodiment, the reflective cone is attached to the connecting rope via an upper soft rubber buckle and a lower soft rubber buckle.

[0015] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution: 1. When the audio device is emitting sound or subjected to external impact, the speaker will still be suspended in the cavity due to the repulsive force between the first and second magnets, the attraction between the fourth and third magnets, and the restraining force of the connecting rope, thus achieving non-contact vibration reduction and effectively avoiding contact noise.

[0016] Second, compared to using springs or slide rails, the connecting rope primarily serves a longitudinal positioning and restraining function. The distance between the fourth magnet and the third magnet will only increase, not decrease, thus effectively preventing collisions between them. In contrast, springs undergo bidirectional deformation, which could cause the fourth and third magnets to break upon impact. Furthermore, the energy stored in the spring during deformation generates noise. The connecting rope effectively solves this noise problem.

[0017] Third, by placing the reflector cone on the connecting rope, the present invention effectively buffers and absorbs the vibration generated by the reflector cone and the sound wave vibration energy emitted by the speaker to the reflector cone, effectively preventing the vibration from being transmitted through the shell to the internal diaphragm of the microphone, thereby improving the quality of voice communication.

[0018] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a perspective view of the audio device provided in an embodiment of the present invention; Figure 2 This is a partial exploded view of the audio device provided in an embodiment of the present invention; Figure 3 This is a fully exploded view of the audio device provided in the embodiments of the present invention; Figure 4 This is a cross-sectional view of the audio device provided in an embodiment of the present invention; Figure 5 This is a perspective view of the connecting rope provided in an embodiment of the present invention.

[0020] Figure label: 10. First housing; 101. Receiving cavity 20. Speaker; 21. Second housing 201. Front outer wall; 202. Rear outer wall 203. Left outer wall; 204. Right outer wall 205. Top outer wall; 206. Bottom outer wall 22. Speaker unit; 30. First magnet; 40. Second magnet 50. The third magnet; 60. The fourth magnet 70. Connecting rope; 81. First hard rubber buckle 82. Second hard rubber buckle; 90. Reflective cone 100. Upper soft rubber buckle; 110. Lower soft rubber buckle. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] Please see Figures 1 to 5 As shown, this application provides a speaker magnetic levitation suspension noise-reducing conference audio device, including, like Figure 4 As shown, the first housing 10 has a receiving cavity 101, and the inner and outer surfaces of the first housing 10 are perforated with sound outlet holes 102 that communicate with the receiving cavity 101. Since the audio device is often placed on the ground or a supporting surface during use, and the sound needs to propagate outward or upward in all directions (360 degrees) from the audio device, the sound outlet holes 102 are provided on the four sides of the first housing 10.

[0026] like Figure 1As shown, the first housing 10 is a cuboid, and its bottom surface is supported on a plane. Of course, the first housing 10 can also be cylindrical, triangular, etc.

[0027] like Figure 3 and Figure 4 As shown, the loudspeaker 20 includes a second housing 21 and a speaker unit 22 disposed on the second housing 21. A plurality of first magnets 30 are bonded to the outer walls of the second housing 21, and a plurality of second magnets 40 corresponding to the first magnets 30 are bonded to the corresponding inner walls of the receiving cavity 101. Both the first magnets 30 and the second magnets 40 are magnets. The magnetic poles of the second magnets 40 and the first magnets 30 are the same at their near ends. The second magnets 40 and the first magnets 30 repel each other. Through the repulsive force between the second magnets 40 and the first magnets 30, the loudspeaker 20 is magnetically levitated within the receiving cavity.

[0028] Optionally, a first magnet 30 is provided on at least two opposing outer sidewalls of the second housing 21; correspondingly, a second magnet 40 is provided on at least two opposing inner sidewalls of the receiving cavity 101, the second magnet 40 repelling the first magnet 30. The repulsive forces generated by the first magnet 30 and the second magnet 40 located at opposite ends of the speaker are the same, thereby maintaining the speaker 20 magnetically levitated within the receiving cavity 101.

[0029] Preferably, the second housing 21 has a first magnet 30 on its front outer wall 201, rear outer wall 202, left outer wall 203, and right outer wall 204; correspondingly, the receiving cavity 101 has a second magnet 40 on its front inner wall, rear inner wall, left inner wall, and right inner wall, with each second magnet 40 repelling the corresponding first magnet 30. The repulsive forces generated by the first magnet 30 and second magnet 40 located on the four sides of the speaker are the same, thereby maintaining the speaker 20 in a more balanced magnetic levitation within the receiving cavity 101.

[0030] like Figure 2 and Figure 3 As shown, alternatively, a first magnet 30 is provided at each of the four corners of the front outer wall 201, rear outer wall 202, left outer wall 203, and right outer wall 204. Correspondingly, a second magnet 40 is provided at each of the four corners of the front inner wall, rear inner wall, left inner wall, and right inner wall, with each second magnet 40 repelling the corresponding first magnet 30. Through the repulsive forces at the corners at four different positions on each surface, a repulsive force balance is formed on the entire surface, and the repulsive forces on the four entire surfaces can magnetically levitate the speaker 20 in a balanced manner within the receiving cavity 101.

[0031] Optionally, the speaker unit 22 is a full-range speaker; of course, the speaker unit 22 can also be other types such as a tweeter, woofer, or midrange speaker. Under normal use, the full-range speaker is positioned closer to the end away from the ground, but since this audio device can be placed arbitrarily, the full-range speaker may sometimes be close to the ground. The speaker unit 22 is suspended in the center of the receiving cavity 101.

[0032] like Figure 2-4 As shown, a third magnet 50 is provided on the top outer wall 205 of the second housing 21, and a fourth magnet 60 is provided on the top inner wall of the first housing 10. The magnetic poles of the fourth magnet 60 and the third magnet 50 are opposite at their near ends, and the fourth magnet 60 and the third magnet 50 attract each other. Optionally, the third magnet 50 is bonded to the center of the top outer wall of the second housing 21, and the fourth magnet 60 is bonded to the center of the top inner wall of the first housing 10, thereby maintaining the stability of the center of gravity. In order to accommodate the weight of the speaker 20, the third magnet 50 and the fourth magnet 60 are made of magnets with larger diameters, thereby strengthening the magnetic attraction.

[0033] The third magnet 50 is a magnet, and the corresponding fourth magnet 60 is a magnet or a magnetic metal block. The third magnet 50 and the fourth magnet 60 are attracted to each other. Alternatively, the fourth magnet 60 is a magnet, and the corresponding third magnet 50 is a magnet or a magnetic metal block. The third magnet 50 and the fourth magnet 60 are attracted to each other.

[0034] like Figure 2-5 As shown, a connecting rope 70 is connected between the bottom outer wall 206 of the second housing 21 and the bottom inner wall of the first housing 10. The connecting rope 70 restrains the attraction force, that is, the connecting rope 70 restricts the fourth magnet 60 and the third magnet 50 from attracting each other. The connecting rope 70 is taut under the action of the attraction force, and the connecting rope 70 will not deform under the action of the attraction force, that is, the connecting rope 70 will not become longer. The connecting rope 70 will only change from a taut state to a slack state. After the connecting rope 70 changes from a taut state to a slack state, it will be taut again under the strong attraction force of the fourth magnet 60 and the third magnet 50.

[0035] Compared to using a spring for shock absorption, the connecting rope 70 primarily serves a longitudinal positioning and restraining function. The distance between the fourth magnet 60 and the third magnet 50 will only increase, not decrease, thus effectively preventing collisions between them. In contrast, a spring undergoes bidirectional deformation, which could cause the fourth magnet 60 and the third magnet 50 to break upon impact. Furthermore, the energy stored in the spring during deformation generates noise. The connecting rope 70 effectively solves the problem of noise generation.

[0036] When the audio device emits sound or is subjected to external impact, the speaker will still be suspended in the cavity due to the repulsive force between the first magnet 30 and the second magnet 40, the attraction between the fourth magnet 60 and the third magnet 50, and the restraining force of the connecting rope 70. This achieves non-contact vibration reduction (the contact of the connecting rope 70 is almost negligible) and effectively avoids contact noise.

[0037] Optionally, the connecting rope 70 is cotton thread, steel wire rope, or aramid fiber rope. Preferably, the connecting rope 70 is made of aramid fiber rope, which has excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, and light weight. Aramid fiber is more dimensionally stable and lighter than springs, and its vibration damping performance does not deteriorate due to temperature and environment.

[0038] In this embodiment, there are four connecting ropes 70, which are respectively connected to the four corners of the first housing 10 and the second housing 21. The connecting ropes 70 at the four corners enable better positioning of the speaker. Of course, the number of connecting ropes 70 is not limited.

[0039] The upper end of the connecting rope 70 is fastened to the notch of the second housing 21 by a first hard rubber buckle 81; the lower end of the connecting rope 70 is fixed to the mounting hole of the first housing 10 by a second hard rubber buckle 82. Of course, the structure for fixing the connecting rope 70 to the first housing 10 and the second housing 21 is not limited, as long as the connecting rope 70 can be fixed.

[0040] To allow sound to propagate more omnidirectionally, this audio device also includes a reflector cone 90, which is mounted on the connecting rope 70 and close to the sound-emitting end of the speaker unit 22. In traditional systems, the reflector cone 90 is fixed to the housing. The mid-to-high frequency vibrations of the sound waves transmitted to the reflector cone 90 are then transmitted to the housing, causing the internal diaphragm of the microphone on the housing to receive the vibration amplitude, resulting in a certain amount of echo at the receiving end device, thus reducing the quality of voice communication. However, this invention, by mounting the reflector cone 90 on the connecting rope 70, effectively buffers and absorbs the vibration energy of the sound waves emitted from the speaker to the reflector cone, thereby effectively preventing the vibration from being transmitted through the housing to the internal diaphragm of the microphone, thus improving the quality of voice communication.

[0041] In this embodiment, the reflective cone 90 is attached to the connecting rope 70 via an upper soft rubber buckle 100 and a lower soft rubber buckle 110. The upper soft rubber buckle 100 and the lower soft rubber buckle 110 can be soft silicone pads with a certain degree of hardness. Using soft materials like the upper soft rubber buckle 100 and the lower soft rubber buckle 110 to fix the reflective cone 90 effectively further absorbs energy and provides cushioning. Alternatively, the upper soft rubber buckle 100 and the lower soft rubber buckle 110 can be replaced with tubular connectors, which also provide energy absorption and cushioning.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A speaker magnetic levitation suspension noise reduction conference audio device, characterized in that: include, A first housing having a receiving cavity, and sound outlet holes communicating with the receiving cavity penetrating the inner and outer surfaces of the first housing; and, The loudspeaker includes a second housing and a speaker unit disposed on the second housing; a plurality of first magnets are provided on the outer walls of the second housing, and a plurality of second magnets corresponding to the first magnets are provided on the inner walls of the receiving cavity; the magnetic poles of the second magnets and the first magnets are the same at their near ends, and the second magnets and the first magnets repel each other; The second housing has a third magnet on its top outer wall and a fourth magnet on its top inner wall. The magnetic poles of the fourth magnet and the third magnet are opposite at their near ends, and the fourth magnet and the third magnet attract each other. A connecting rope connects the bottom outer wall of the second housing and the bottom inner wall of the first housing, and the connecting rope restrains the attraction force. It also includes a reflector cone, which is disposed on the connecting rope and close to the sound-emitting end of the speaker unit. The reflector cone is disposed on the connecting rope by an upper soft rubber buckle and a lower soft rubber buckle.

2. The speaker magnetic levitation suspension noise reduction conference audio device according to claim 1, characterized in that: The connecting rope is a cotton thread or an aramid fiber rope.

3. The speaker magnetic levitation suspension noise reduction conference audio device according to claim 1, characterized in that: The upper end of the connecting rope is fastened to the notch of the second housing by a first hard rubber buckle; the lower end of the connecting rope is fixed to the mounting hole of the first housing by a second hard rubber buckle.

4. The speaker magnetic levitation suspension noise reduction conference audio device according to claim 1, characterized in that: The number of connecting ropes is four, and the four connecting ropes are respectively connected to the four corners of the first shell and the second shell.

5. A speaker magnetic levitation suspension noise reduction conference audio device according to claim 1, characterized in that: The second housing has a first magnet on at least two opposite outer sidewalls; correspondingly, the receiving cavity has a second magnet on at least two opposite inner sidewalls, the second magnet repelling the first magnet.

6. A speaker magnetic levitation suspension noise reduction conference audio device according to claim 5, characterized in that: The second housing is provided with a first magnet on the front outer wall, rear outer wall, left outer wall and right outer wall; correspondingly, the receiving cavity is provided with a second magnet on the front inner wall, rear inner wall, left inner wall and right inner wall, and each second magnet repels the corresponding first magnet.

7. A speaker magnetic levitation suspension noise reduction conference audio device according to claim 6, characterized in that: A first magnet is provided at each of the four corners of the front outer wall, rear outer wall, left outer wall, and right outer wall; correspondingly, a second magnet is provided at each of the four corners of the front inner wall, rear inner wall, left inner wall, and right inner wall, and each second magnet repels the corresponding first magnet.

8. A speaker magnetic levitation suspension noise reduction conference audio device according to claim 1, characterized in that: The third magnet is a magnet, and the corresponding fourth magnet is a magnet or a magnetic metal block. The third magnet and the fourth magnet are attracted to each other. Alternatively, the fourth magnet is a magnet, and the corresponding third magnet is a magnet or a magnetic metal block, and the third magnet is attracted to the fourth magnet.

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