Loudspeaker capable of enhancing sound loudness

Abstract

The utility model discloses a loudspeaker capable of enhancing sound loudness, which comprises a loudspeaker body, a consumption-reducing sound-conducting structure for reducing sound energy loss is arranged at a sound outlet of the loudspeaker body, and the consumption-reducing sound-conducting structure comprises an installation connecting sleeve sleeved outside the loudspeaker body. A sound outlet corresponding to the sound outlet of the loudspeaker body is formed in the middle of the installation connecting sleeve, the outer end wall of the installation connecting sleeve is arranged to be a lateral arc-shaped reflecting surface, and the height of the inner diameter of the lateral arc-shaped reflecting surface is smaller than that of the outer diameter of the lateral arc-shaped reflecting surface. A front cavity circular sound guide cone covering the sound outlet of the loudspeaker body is arranged at the sound outlet of the mounting connecting sleeve; according to the utility model, through a two-stage path in which the front cavity circular sound guide cone laterally scatters sound waves and the lateral arc reflecting surface focuses on the arc, medium-high frequency resonance points required by tuning and lifting are realized, so that the medium-high frequency sound energy loss is reduced, the physical limitation of traditional linear propagation is broken through, the propagation distance is increased, and the sound loudness is improved under the space limitation of an acoustic structure.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, specifically to a loudspeaker that enhances sound volume. Background Technology

[0002] A loudspeaker is essentially a device that converts electrical energy into sound. When different amounts of electronic energy are transmitted to the coil, the coil generates energy that interacts with the magnetic field of the magnet. This interaction causes the phonograph to vibrate. Because the electronic energy is constantly changing, the loudspeaker's coil moves forward or backward, causing the phonograph to move accordingly. These movements change the density of the air, thus producing sound. Traditional loudspeakers primarily transmit sound in a straight line, which is physically limited and affects the loudness of the sound. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a loudspeaker that enhances sound volume.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a loudspeaker for enhancing sound volume, comprising a loudspeaker body. The loudspeaker body has a sound-reducing and sound-guiding structure at its sound outlet to reduce sound energy loss. The sound-reducing and sound-guiding structure includes a mounting sleeve fitted over the outside of the loudspeaker body. The mounting sleeve has a sound outlet in its middle section corresponding to the sound outlet of the loudspeaker body. The outer end wall of the mounting sleeve is configured as a lateral arc-shaped reflective surface, with the height of the inner diameter of the lateral arc-shaped reflective surface lower than the height of its outer diameter. The sound outlet of the mounting sleeve has a front cavity circular sound-guiding cone covering the sound outlet of the loudspeaker body. The curvature of the front cavity circular sound-guiding cone is consistent with the curvature of the speaker diaphragm inside the loudspeaker body.

[0006] As a preferred embodiment of this utility model, the front cavity circular sound guide cone is connected to the sound outlet of the lateral arc-shaped reflective surface via a connecting assembly.

[0007] As a preferred embodiment of the present invention, the connecting assembly includes multiple connecting rods arranged in a ring and equidistantly connected at the sound outlet of the lateral arc-shaped reflective surface, with the same connecting cover connected to one end of the multiple connecting rods away from the lateral arc-shaped reflective surface.

[0008] As a preferred embodiment of this utility model, the circular sound-conducting cone of the front cavity is bonded to the inner wall of the connecting cover.

[0009] As a preferred embodiment of this utility model, the height of the connecting rod is set to 2mm.

[0010] As a preferred embodiment of this utility model, the curvature of the lateral arc-shaped reflective surface forms an angle of less than 25° with the tangent of the circular sound-conducting cone in the front cavity.

[0011] As a preferred embodiment of this utility model, the inner wall of the mounting sleeve is provided with a connecting ring that matches the outer shell of the speaker body.

[0012] As a preferred embodiment of this utility model, the outer wall of the circular sound guide cone in the front cavity is coated with a gradient porous coating.

[0013] As a preferred technical solution of this utility model, the outer wall of the lateral arc-shaped reflective surface is provided with a plurality of waist-shaped grooves at equal intervals.

[0014] The beneficial effects of this utility model are:

[0015] This type of loudspeaker enhances sound volume by employing a front-cavity circular sound guide cone and a lateral arc-shaped reflector. The curvature of the front-cavity circular sound guide cone is set to match the curvature of the speaker diaphragm inside the speaker body. Through the two-stage path of lateral scattering of sound waves by the front-cavity circular sound guide cone and the lateral arc-shaped reflector focusing the sound waves in an arc shape, the desired mid-to-high frequency resonant point is tuned and enhanced, reducing mid-to-high frequency sound energy loss. This breaks through the physical limitations of traditional straight-line propagation, increases the propagation distance, and enhances sound volume within the spatial constraints of the acoustic structure. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a speaker for enhancing sound loudness according to this utility model;

[0018] Figure 2 This is a schematic diagram of a sound-conducting structure for a loudspeaker that reduces sound loss;

[0019] Figure 3 This is a comparison test of the frequency response data of the non-conducting sound structure and the assembled multi-flow-guided sound output structure of this utility model.

[0020] In the diagram: 1. Speaker body; 2. Low-loss sound guiding structure; 3. Mounting connecting sleeve; 4. Sound outlet; 5. Lateral arc-shaped reflector; 6. Front cavity circular sound guiding cone; 7. Connecting assembly; 8. Connecting rod; 9. Connecting cover; 10. Connecting ring. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example: Figure 1 and Figure 2 As shown, this utility model discloses a loudspeaker for enhancing sound volume, comprising a loudspeaker body 1. The loudspeaker body 1 has a sound-reducing and sound-guiding structure 2 at its sound outlet to reduce sound energy loss. The sound-reducing and sound-guiding structure 2 includes a mounting and connecting sleeve 3 fitted over the outside of the loudspeaker body 1. The mounting and connecting sleeve 3 has a sound outlet 4 in its middle section corresponding to the sound outlet of the loudspeaker body 1. The outer end wall of the mounting and connecting sleeve 3 is configured as a lateral arc-shaped reflective surface 5, the height of the inner diameter of the lateral arc-shaped reflective surface 5 being lower than the height of the outer diameter of the lateral arc-shaped reflective surface 5. The sound outlet 4 of the mounting and connecting sleeve 3 is provided with a cover over the sound outlet of the loudspeaker body 1. The front cavity circular sound guide cone 6 has a curvature that matches the curvature of the speaker diaphragm inside the speaker body 1. Through the front cavity circular sound guide cone 6 and the lateral arc-shaped reflective surface 5, the two-stage path of lateral scattering of sound waves by the front cavity circular sound guide cone 6 and arc-shaped focusing by the lateral arc-shaped reflective surface 5 tunes and enhances the required mid-to-high frequency resonant point, reduces mid-to-high frequency sound energy loss, breaks through the physical limitations of traditional straight-line propagation, increases the propagation distance, and improves the sound loudness within the spatial constraints of the acoustic structure.

[0023] The front cavity circular sound guide cone 6 is connected to the sound outlet 4 of the lateral arc-shaped reflective surface 5 via a connecting assembly 7. The connecting assembly 7 includes multiple connecting rods 8 that are ring-shaped and equidistantly connected to the sound outlet 4 of the lateral arc-shaped reflective surface 5. The ends of the multiple connecting rods 8 away from the lateral arc-shaped reflective surface 5 are connected to the same connecting cover 9. The front cavity circular sound guide cone 6 is bonded to the inner wall of the connecting cover 9. The height of the connecting rods 8 is set to 2mm to guide the sound waves to scatter to the side along the tangential direction, so that the sound wave diffusion angle is ≥120°.

[0024] The curvature of the lateral arc-shaped reflective surface 5 forms an angle of less than 25° with the tangent of the circular sound-guiding cone 6 in the front cavity, which focuses the lateral sound waves and refracts them forward.

[0025] The inner wall of the mounting sleeve 3 is provided with a connecting ring 10 that matches the outer shell of the speaker body 1. The connecting ring 10 and the outer shell of the speaker body 1 can be threaded together for easy disassembly and assembly.

[0026] The outer wall of the circular sound-conducting cone 6 in the front cavity is coated with a gradient porous coating with a porosity that gradually changes from 50% at the root to 20% at the top, matching the air impedance to reduce reflection.

[0027] The outer wall of the lateral arc-shaped reflective surface 5 is provided with several waist-shaped grooves 11 at equal intervals to focus the lateral sound waves and refract them forward.

[0028] Comparative example:

[0029] like Figure 3 As shown in the comparison test, the frequency response data of the two tests are as follows: The measured data shows that the loudness of 200Hz-5KHz is improved after adding the sound output structure (an average increase of 1dB from 200Hz-1KHz), and the mid-high frequency 1KHz-3KHz is improved by an average of 2.59dB. The improvement in 1KHz-3KHz can make the human voice sound brighter, thereby achieving the effect of improving the loudness of the sound.

[0030] During operation, this type of loudspeaker, which enhances sound volume, utilizes a front-cavity circular sound guide cone 6 and a lateral arc-shaped reflective surface 5. The curvature of the front-cavity circular sound guide cone 6 is consistent with the curvature of the speaker diaphragm inside the speaker body 1. Through the two-stage path of lateral scattering of sound waves by the front-cavity circular sound guide cone 6 and arc-shaped focusing by the lateral arc-shaped reflective surface 5, the desired mid-to-high frequency resonant point is tuned and enhanced. This reduces mid-to-high frequency sound energy loss, breaks through the physical limitations of traditional straight-line propagation, increases the propagation distance, and enhances sound volume within the spatial constraints of the acoustic structure.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A horn for enhancing the loudness of sound, comprising a horn body (1), characterized in that, The sound outlet of the loudspeaker body (1) is provided with a sound energy loss reducing and guiding structure (2), which comprises a mounting connecting sleeve (3) sleeved on the outside of the loudspeaker body (1), the middle part of the mounting connecting sleeve (3) is provided with a sound outlet (4) corresponding to the sound outlet of the loudspeaker body (1), the outer end wall of the mounting connecting sleeve (3) is provided with a lateral arc-shaped reflecting surface (5), the height of the inner diameter of the lateral arc-shaped reflecting surface (5) is lower than that of the outer diameter, the sound outlet (4) of the mounting connecting sleeve (3) is provided with a front cavity circular sound guiding cone (6) covering the sound outlet of the loudspeaker body (1), and the curvature of the front cavity circular sound guiding cone (6) is consistent with that of the loudspeaker diaphragm inside the loudspeaker body (1).

2. A horn for enhancing the loudness of sound according to claim 1, wherein The front cavity circular sound guiding cone (6) is connected to the sound outlet (4) of the lateral arc-shaped reflecting surface (5) through a connecting assembly (7).

3. A horn for enhancing the loudness of sound according to claim 2, wherein The connecting assembly (7) comprises a plurality of connecting rods (8) connected to the sound outlet (4) of the lateral arc-shaped reflecting surface (5) in a ring shape and at equal distances, and the same connecting cover (9) is connected to one end of the plurality of connecting rods (8) away from the lateral arc-shaped reflecting surface (5).

4. A horn for enhancing the loudness of sound according to claim 3, wherein The front cavity circular sound guiding cone (6) is bonded to the inner wall of the connecting cover (9).

5. A horn for enhancing the loudness of sound according to claim 3, wherein The height of the connecting rod (8) is 2mm.

6. A horn for enhancing loudness of sound according to claim 1, wherein The curvature of the lateral arc-shaped reflecting surface (5) and the tangent of the front cavity circular sound guiding cone (6) are less than 25°.

7. A horn for enhancing loudness of sound as defined in claim 1, wherein The inner wall of the mounting connecting sleeve (3) is provided with a connecting ring (10) matched with the shell of the loudspeaker body (1).

8. A horn for enhancing loudness of sound according to claim 1, wherein The outer wall of the front cavity circular sound guiding cone (6) is coated with a gradient porous coating.

9. A horn for enhancing loudness of sound according to claim 1, wherein The outer wall of the lateral arc-shaped reflecting surface (5) is provided with a plurality of waist-shaped grooves (11) at equal distances.

Images