Anti-resonance supporting device of box loudspeaker

Abstract

The utility model discloses an anti-resonance supporting device of a box loudspeaker, and relates to the technical field of sound equipment. The anti-resonance supporting device of the box loudspeaker comprises a hollow base with an opening in the upper end, a control panel is arranged on the front surface of the base, a floating electromagnet is fixedly connected to the lower end of the interior of the base, positioning electromagnets are connected to the inner wall of the base in an array mode, a loudspeaker tray is arranged in the base, and the loudspeaker tray is fixedly connected to the upper end of the base. A rubidium magnet is fixedly connected into the lower end of the horn tray, the upper end of the horn tray extends to the upper end of the base and extends outwards, an extension plate is fixedly connected to the periphery of the outer side of the lower end of the horn tray, and the lower end of the extension plate is connected with the lower end of the rubidium magnet. Four linear Hall sensors are connected to the upper end of the inner wall of the base in an array mode, four positioning rubidium magnets are connected to the interior of the lower end of the horn tray in an array mode, and the positions of the four positioning rubidium magnets are opposite to the positions of the positioning electromagnets.

Description

Technical Field

[0001] This utility model relates to the field of audio technology, specifically to an anti-resonance support device for a cabinet speaker. Background Technology

[0002] A cabinet-mounted loudspeaker is an audio system in which the speaker unit is installed inside a specially structured enclosure to optimize sound performance. The main function of the enclosure is to prevent the sound waves from canceling each other out (acoustic short circuit), enhance low-frequency response, and reduce distortion. When the speaker unit emits sound, the air inside the enclosure forms standing waves, causing the enclosure to resonate. This resonance is transmitted to the placement location, resulting in significant extraneous noise in addition to the original sound, affecting the listening experience. Therefore, an anti-resonance support device for cabinet-mounted loudspeakers is designed to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-resonance support device for a cabinet speaker, which solves the problem that existing cabinet speakers are mostly placed directly on desktops or coffee tables, causing resonance with the placement of the table or coffee table when emitting sound, resulting in significant noise.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides an anti-resonance support device for a speaker enclosure, comprising: a hollow base with an open top; a control panel on the front surface of the base; a floating electromagnet fixedly connected to the lower end of the base; positioning electromagnets arranged in an array on the inner wall of the base; a speaker tray inside the base; a neodymium magnet fixedly connected to the lower end of the speaker tray; the upper end of the speaker tray extending to the upper end of the base and outward; an extension plate made of ferromagnetic material fixedly connected around the lower outer edge of the speaker tray; the lower end of the extension plate connecting to the lower end of the neodymium magnet; four linear Hall sensors arranged in an array on the upper end of the inner wall of the base; four positioning neodymium magnets arranged in an array inside the lower end of the speaker tray; the positions of the four positioning neodymium magnets opposite to the positions of the positioning electromagnets; and the control panel electrically connected to the floating electromagnet, the positioning electromagnet, and the linear Hall sensors.

[0008] Preferably, slots are provided at the four corners of the lower surface of the upper end of the speaker tray, and electric telescopic rods are fixedly connected to the four corners inside the base. The telescopic ends of the electric telescopic rods are inserted and connected to the inside of the slots.

[0009] Preferably, the upper end of the speaker tray has a placement groove, the front and rear ends of the placement groove are slidably connected to a fixing plate, the outer side of the fixing plate is slidably connected to a push block, and the front and rear sides of the upper end of the speaker tray are rotatably connected to a lead screw, which is connected to the push block by a thread.

[0010] Preferably, infrared ranging modules are installed in an array around the inner circumference of the upper surface of the base, and the infrared ranging modules are electrically connected to the control panel.

[0011] Preferably, the upper end of the base extends inward, the area of ​​the upper and lower ends of the speaker tray is larger than the area of ​​the opening at the upper end of the base, and sound-absorbing cotton is fixedly connected to the lower surface of the inwardly extending part of the upper end of the base.

[0012] Preferably, the length of the middle position of the horn tray is less than the length between the upper end of the base and the upper surface of the floating electromagnet.

[0013] Preferably, a copper stabilizing plate is fixedly connected to the lower surface of the speaker tray.

[0014] (III) Beneficial Effects

[0015] This utility model provides an anti-resonance support device for a cabinet speaker, which has at least the following advantages compared with the prior art:

[0016] The anti-resonance support device of this speaker enclosure ensures that when the speaker is placed on top, the speaker tray does not contact the base or the table surface, and the vibration of the enclosure will not be transmitted to the table. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A sectional view;

[0019] Figure 3 This is an exploded view of the present invention;

[0020] Figure 4 This utility model Figure 3 A sectional view.

[0021] In the diagram: 1. Base; 2. Control panel; 3. Lifting electromagnet; 4. Positioning electromagnet; 5. Speaker tray; 6. Neodymium magnet; 7. Extension plate; 8. Linear Hall sensor; 9. Positioning neodymium magnet; 21. Electric telescopic rod; 22. Placement slot; 23. Fixing plate; 24. Push block; 25. Lead screw; 26. Infrared ranging module; 27. Sound-absorbing cotton; 28. Copper stabilizing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an anti-resonance support device for a speaker enclosure, comprising: a hollow base 1 with an open top; a control panel 2 on the front surface of the base 1; a floating electromagnet 3 fixedly connected to the lower end of the base 1; positioning electromagnets 4 arranged in an array on the inner wall of the base 1; a speaker tray 5 inside the base 1; a neodymium magnet 6 fixedly connected to the lower end of the speaker tray 5; the upper end of the speaker tray 5 extending to the upper end of the base 1 and outward; an extension plate 7, made of ferromagnetic material, fixedly connected around the lower outer side of the speaker tray 5; the lower end of the extension plate 7 connecting to the lower end of the neodymium magnet 6; four linear Hall sensors 8 arranged in an array on the upper end of the inner wall of the base 1; four positioning neodymium magnets 9 arranged in an array inside the lower end of the speaker tray 5; the positions of the four positioning neodymium magnets 9 opposite to the positions of the positioning electromagnets 4; and the control panel 2 electrically connected to the floating electromagnet 3, the positioning electromagnets 4, and the linear Hall sensors 8.

[0024] In use, place the speaker on the speaker tray 5, and then activate the levitation electromagnet 3 and positioning electromagnet 4 via the control panel. The levitation electromagnet 3 will generate a repulsive force with the neodymium magnet 6 inside the lower end of the speaker tray 5, causing the speaker tray 5 and the speaker on it to float upwards together. The four positioning electromagnets 4 will generate a repulsive force with the positioning neodymium magnet 9. When the position of the speaker tray 5 changes parallel or rotates, the extension plate 7 is magnetized due to contact with the neodymium magnet 6. When it shifts, the magnetic flux of the linear Hall sensor 8 that shifts to that position gradually increases, and then transmits the changing current to the control panel 2. The internal program proportionally increases the power supply of the positioning electromagnet 4 at that position, so that the repulsive force pushes the shifted position back. At the same time, the power supply of the positioning electromagnet 4 at the opposite position decreases to reduce the repulsive force and pull the position back to the middle, preventing it from falling down due to excessive shift and also preventing it from contacting the base 1 and causing resonance. When the speaker emits sound, the resonance of the cabinet will be transmitted to the speaker tray 5, and the speaker tray 5 only contacts the air and resonates only with the air, reducing the generation of noise.

[0025] like Figure 1-4As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, slots are provided at the four corners of the upper lower surface of the speaker tray 5, and electric telescopic rods 21 are fixedly connected to the four corners inside the base 1. The telescopic ends of the electric telescopic rods 21 are inserted and connected to the inside of the slots.

[0026] Analysis of the above structure shows that before placing the speaker, the weight of the speaker is input through the control face 2. The electric telescopic rod 21 will determine the extension length of the electric telescopic rod 21 based on the input weight, move the speaker tray 5 to the optimal height, and then activate the levitation electromagnet 3 and the positioning electromagnet 4 before retracting the electric telescopic rod 21. This facilitates the placement of speakers of different weights and determines the angle of the speaker tray 5.

[0027] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the upper end of the speaker tray 5 is provided with a placement groove 22. The front and rear ends of the placement groove 22 are slidably connected to a fixing plate 23. The outer side of the fixing plate 23 is slidably connected to a push block 24. The front and rear sides of the upper end of the speaker tray 5 are rotatably connected to a lead screw 25. The lead screw 25 and the push block 24 are connected by a thread.

[0028] Analysis of the above structure shows that after the speaker is placed in the placement slot 22, the lead screw 25 is rotated. The threads at both ends of the lead screw 25 rotate in opposite directions, causing the two push blocks 24 to slide inwards simultaneously. The contact position between the fixing plate 23 and the push blocks 24 is an inclined surface. When sliding inwards, the fixing plate 23 is pushed inwards, thus clamping the speaker.

[0029] like Figure 1-4 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, an infrared ranging module 26 is installed in an array around the inner surface of the upper surface of the base 1. The infrared ranging module 26 is electrically connected to the control panel 2.

[0030] Analysis of the above structure shows that when the desired height is input on the control panel 2, the infrared ranging module 26 will detect the distance between the speaker trays 5. When the height is lower or higher than this, the magnetic force of the levitation electromagnet 3 will be changed to adjust it to the desired position.

[0031] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the upper end of the base 1 extends inward, the upper and lower ends of the speaker tray 5 have an area larger than the area of ​​the upper opening of the base 1, and sound-absorbing cotton 27 is fixedly connected to the lower surface of the inward extension position of the upper end of the base 1.

[0032] Analysis of the above structure shows that the inward extension of the upper part of the base 1 restricts the upward position of the speaker tray 5 to prevent it from detaching. When it moves to the upper part, it will be blocked by the sound-absorbing cotton 27 to prevent it from directly contacting the base 1 and reducing the noise emitted.

[0033] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the length of the middle position of the horn tray 5 is less than the length between the upper end of the base 1 and the upper surface of the floating electromagnet 3.

[0034] Analysis of the above structure shows that the length of the middle position of the speaker tray 5 is less than the length between the upper end of the base 1 and the upper surface of the floating electromagnet 3, so as to prevent the lower end of the speaker tray 5 from falling directly onto the floating electromagnet 3 and the internal neodymium magnet 6 in the event of a sudden power outage or damage.

[0035] like Figure 1-4 As shown, this utility model embodiment provides an implementation method in which a copper stabilizing plate 28 is fixedly connected to the lower surface of the speaker tray 5 based on the above implementation method.

[0036] Analysis of the above structure shows that when the position shifts, the copper stabilizing plate 28 will change accordingly, cutting the magnetic field lines to form resistance and reduce shaking.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A resonance-resistant support device for a speaker enclosure, characterized in that, include: A hollow base (1) with an open top has a control panel (2) on its front surface. A floating electromagnet (3) is fixedly connected to the lower part of the base (1). Positioning electromagnets (4) are arrayed on the inner wall of the base (1). A horn tray (5) is provided inside the base (1). A neodymium magnet (6) is fixedly connected to the lower part of the horn tray (5). The upper part of the horn tray (5) extends to the upper part of the base (1) and outwards. The lower outer side of the horn tray (5) is fixed. An extension plate (7) is connected to the base (1). The extension plate (7) is made of ferromagnetic material. The lower end of the extension plate (7) is connected to the lower end of the rubidium magnet (6). Four linear Hall sensors (8) are arrayed on the upper end of the inner wall of the base (1). Four positioning rubidium magnets (9) are arrayed inside the lower end of the speaker tray (5). The positions of the four positioning rubidium magnets (9) are opposite to the positions of the positioning electromagnets (4). The control panel (2) is electrically connected to the floating electromagnet (3), the positioning electromagnet (4), and the linear Hall sensors (8).

2. The anti-resonance support device for a speaker enclosure according to claim 1, characterized in that: The upper end of the speaker tray (5) has slots at the four corners of its lower surface. The base (1) has electric telescopic rods (21) fixedly connected to its four corners. The telescopic ends of the electric telescopic rods (21) are inserted into the slots.

3. The anti-resonance support device for a speaker enclosure according to claim 1, characterized in that: The upper end of the speaker tray (5) is provided with a placement groove (22). The front and rear ends of the placement groove (22) are slidably connected with a fixing plate (23). The outer side of the fixing plate (23) is slidably connected with a push block (24). The front and rear sides of the upper end of the speaker tray (5) are rotatably connected with a lead screw (25). The lead screw (25) and the push block (24) are connected by a thread.

4. The anti-resonance support device for a speaker enclosure according to claim 1, characterized in that: The base (1) has an infrared ranging module (26) installed in an array around the inner surface of the upper surface. The infrared ranging module (26) is electrically connected to the control panel (2).

5. The anti-resonance support device for a speaker enclosure according to claim 1, characterized in that: The upper end of the base (1) extends inward, and the area of ​​the upper and lower ends of the speaker tray (5) is larger than the area of ​​the opening at the upper end of the base (1). Sound-absorbing cotton (27) is fixedly connected to the lower surface of the inward extension position at the upper end of the base (1).

6. The anti-resonance support device for a speaker enclosure according to claim 1, characterized in that: The length of the middle position of the horn tray (5) is less than the length between the upper end of the base (1) and the upper surface of the floating electromagnet (3).

7. The anti-resonance support device for a speaker enclosure according to claim 1, characterized in that: A copper stabilizing plate (28) is fixedly connected to the lower surface of the speaker tray (5).

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