A sound box for reducing distortion effect

Abstract

The utility model provides a kind of sound box for reducing distortion effect, the sound box includes box, speaker and inverter tube, the box has cavity and the mounting plate located at the front side of the cavity, the mounting plate has mounting hole, the speaker is installed in the mounting hole and the front side of the speaker is set to face forward, the rear side of the speaker is placed in the cavity, the mounting plate is provided with the recess recessed to the rear in the circumferential side of the mounting hole, the mounting plate front side is provided with the diaphragm covering the recess, the diaphragm is provided with air hole, the recess is communicated with one end of the inverter tube, the other end of the inverter tube is inserted into the cavity.The utility model can improve the stereo space sense of sound while reducing distortion effect.

Description

Technical Field

[0001] This utility model relates to a speaker, and more particularly to a speaker that reduces distortion. Background Technology

[0002] A speaker is a device that converts audio signals into sound. The sound-producing component of a speaker is the loudspeaker. Based on the characteristics of sound waves and the requirement to enhance the reproduction of low-frequency sound waves, structures such as bass reflex tubes are designed on speakers. The purpose is to enhance sound signals of a certain wavelength in the low-frequency range, which can improve the distortion effect to a certain extent. However, existing speakers still have the problem of sound distortion in some low-frequency ranges. Utility Model Content

[0003] Therefore, it is necessary to provide a speaker that reduces distortion, which can improve the spatial sense of sound while reducing distortion.

[0004] This utility model provides a speaker to reduce distortion. The speaker includes a cabinet, a speaker, and a bass reflex port. The cabinet has a cavity and a mounting plate located on the front side of the cavity. The mounting plate has a mounting hole. The speaker is mounted in the mounting hole with its front side facing forward. The rear side of the speaker is placed in the cavity. The mounting plate has a recessed groove on the periphery of the mounting hole. A diaphragm covering the groove is provided on the front side of the mounting plate. The diaphragm has a vent hole. The groove connects to one end of the bass reflex port, and the other end of the bass reflex port extends into the cavity.

[0005] Furthermore, the other end of the bass reflex tube faces the rear side of the speaker.

[0006] Furthermore, the speaker enclosure includes a plurality of the loudspeakers, the recess includes a central portion located between the plurality of loudspeakers and a surrounding portion surrounding each of the loudspeakers, the central portion communicating with the surrounding portion, the bass reflex port including a main pipe and branch pipes corresponding to the number of loudspeakers, one end of the main pipe being connected to the central portion, and the branch pipes being connected to the other end of the main pipe.

[0007] Furthermore, the connection between the central portion and the surrounding portion has an entrance that gradually decreases in size towards the surrounding portion.

[0008] This invention has the following beneficial effects: the diaphragm covers the grooves provided around the speaker to form a resonant cavity. When the speaker is working, the bass part enters the resonant cavity located around the speaker through the bass reflex tube and resonates in the resonant cavity. The diaphragm facilitates multiple reflections and resonances of sound waves. During the resonance process, the diaphragm is appropriately compressed, thereby emitting a stronger and resonant low-frequency sound wave. The diaphragm has ventilation holes, which facilitates the air expulsion and entry of the diaphragm during contraction, reducing distortion. The strong and resonant low-frequency sound wave emitted will be superimposed with the sound wave emitted from the front of the speaker, thereby mixing the high and low frequencies together and making the three-dimensional spatial sense of the sound reverberation better. Attached Figure Description

[0009] Figure 1 This is a cross-sectional structural diagram of the speaker of this utility model.

[0010] Figure 2 This is a three-dimensional structural diagram of the speaker box of this utility model with the diaphragm hidden. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connection relationships shown in the drawings are only for clear description and do not limit the connection method.

[0012] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0013] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] Please see Figures 1-2 As shown in the figure, a specific embodiment of the present invention provides a speaker 100 to reduce distortion. The speaker 100 includes a cabinet 10, a speaker 20, and a bass reflex port 30. The cabinet 10 has a cavity 11 and a mounting plate 12 located on the front side of the cavity 11. The mounting plate 12 has a mounting hole 121. The speaker 20 is mounted in the mounting hole 121 with its front side facing forward. The rear side of the speaker 20 is placed in the cavity 11. The mounting plate 12 has a recessed groove 122 on the periphery of the mounting hole 121. The front side of the mounting plate 12 has a diaphragm 13 covering the groove 122. The diaphragm 13 has a vent hole 131. The groove 122 is connected to one end of the bass reflex port 30, and the other end of the bass reflex port 30 extends into the cavity 11.

[0015] The diaphragm 13 covers the groove 122 surrounding the speaker 20 to form a resonant cavity. When the speaker 20 is working, the bass part enters the resonant cavity located around the speaker 20 through the bass reflex tube 30 and resonates in the resonant cavity. The diaphragm 13 facilitates multiple reflections and resonances of sound waves. During the resonance process, the diaphragm 13 is appropriately compressed, thereby emitting a stronger and resonant low-frequency sound wave. The diaphragm 13 has a vent hole 131, which facilitates the air expulsion and entry of the diaphragm 13 when it contracts, reducing distortion. The strong and resonant low-frequency sound wave emitted will be superimposed with the sound wave emitted from the front of the speaker 20, thereby mixing the high and low frequencies together and making the three-dimensional spatial sense of the sound reverberation better.

[0016] The other end of the bass reflex tube 30 faces the rear side of the speaker 20, which facilitates the bass response of the speaker 20 through the bass reflex tube 30.

[0017] The speaker 100 includes a plurality of speakers 20. The recess 122 includes a central portion 1221 located between the plurality of speakers 20 and a surrounding portion 1222 surrounding each speaker 20. The central portion 1221 communicates with the surrounding portion 1222. The bass reflex port 30 includes a main pipe 31 and branch pipes 32 corresponding to the number of speakers 20. One end of the main pipe 31 is connected to the central portion 1221, and the branch pipes 32 are connected to the other end of the main pipe 31. Each port of the branch pipe 32 corresponds to one speaker 20. The bass portion of each speaker 20 is concentrated and enhanced at the position of the central portion 1221 and then dispersed to the periphery of each speaker 20, thereby further improving the stereo effect of the sound.

[0018] The central portion 1221 and the surrounding portion 1222 have an entrance 1223 that gradually decreases in size towards the surrounding portion 1222. Sound waves coming out of the phase inverter 30 can smoothly enter the central portion 1221, and then more smoothly enter the surrounding portion 1222 from the gradually decreasing entrance 1223.

[0019] In the illustration, the speaker 100 includes two speakers 20 arranged symmetrically on the left and right sides.

[0020] In the specification and claims of this application, the terms "comprising / including" and "having / including" and variations thereof are used to specify the presence of the stated features, values, steps or components, but do not exclude the presence or addition of one or more other features, values, steps, components or combinations thereof.

[0021] Some features of this invention are described in different embodiments for clarity; however, these features may also be described in combination in a single embodiment. Conversely, some features of this invention are described only in a single embodiment for brevity; however, these features may also be described individually or in any suitable combination in different embodiments.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A speaker with reduced distortion, characterized in that, The speaker enclosure includes a cabinet, a loudspeaker, and a bass reflex port. The cabinet has a cavity and a mounting plate located on the front side of the cavity. The mounting plate has a mounting hole. The loudspeaker is mounted in the mounting hole with its front side facing forward. The rear side of the loudspeaker is placed in the cavity. The mounting plate has a recessed groove around the mounting hole. A diaphragm covering the groove is provided on the front side of the mounting plate. The diaphragm has a vent hole. The groove connects to one end of the bass reflex port, and the other end of the bass reflex port extends into the cavity.

2. The speaker for reducing distortion according to claim 1, characterized in that, The other end of the bass reflex tube faces the rear of the speaker.

3. The speaker with reduced distortion effect according to claim 2, characterized in that, The speaker enclosure includes a plurality of speakers, the recess includes a central portion located between the plurality of speakers and a surrounding portion surrounding each of the speakers, the central portion communicating with the surrounding portion, the bass reflex port including a main pipe and branch pipes corresponding to the number of speakers, one end of the main pipe being connected to the central portion, and the branch pipes being connected to the other end of the main pipe.

4. The speaker with reduced distortion effect according to claim 3, characterized in that, The central portion has an entrance that gradually decreases in size as it connects to the surrounding portion.

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