Multichannel direct push type multi-horn earphone acoustic structure

Abstract

The utility model discloses a multichannel direct push type multi-loudspeaker earphone acoustic structure. The multichannel direct push type multi-loudspeaker earphone acoustic structure comprises a main loudspeaker unit, a first auxiliary loudspeaker unit, a second auxiliary loudspeaker unit and a third auxiliary loudspeaker unit, the first auxiliary loudspeaker unit and the second auxiliary loudspeaker unit are arranged on the two sides of a vertical use center line respectively, the main loudspeaker unit and the third auxiliary loudspeaker unit are arranged on the two sides of a horizontal use center line respectively, and the third auxiliary loudspeaker unit is located above the main loudspeaker unit; the center of the main loudspeaker unit deviates from the center of the disc body of the horn disc, and the distance between the first auxiliary loudspeaker unit and the main loudspeaker unit is smaller than the distance between the second auxiliary loudspeaker unit and the main loudspeaker unit. According to the invention, the ten-channel audio signal can be respectively output through the eight loudspeaker units, and the real playing of the multi-channel audio is realized.

Description

Technical Field

[0001] The present application relates to the technical field of audio playback equipment, and in particular to an acoustic structure of a multi-channel direct-push multi-speaker earphone. Background Art

[0002] At present, existing headphones usually have two speakers on the left and right, or a multi-speaker design with a traditional frequency divider, which is a stereo two-channel mode. Multi-channel audio is mixed into two-channel sound output in a virtual way, resulting in missing, mixed, and distorted multi-channel audio signal playback, making it difficult to provide users with a richer and more realistic audio experience. Utility Model Content

[0003] The purpose of this application is to provide a multi-channel direct-push multi-speaker earphone acoustic structure to solve the technical problems in the prior art that the existing earphone structure has poor audio effects and requires multiple speakers to be set according to the channels, which makes the earphone too heavy. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided in this application are described in detail below.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] The present application provides an acoustic structure of a multi-channel direct-push multi-speaker headset, comprising: speaker plates symmetrically arranged on the left and right sides, the speaker plates on both sides comprising: a main speaker unit, a first auxiliary speaker unit, a second auxiliary speaker unit and a third auxiliary speaker unit; the main speaker unit is configured to play any channel signal among a subwoofer channel signal, a front center channel signal and a unidirectional front channel signal, or a main channel signal, and the main channel signal is arbitrarily fitted by the subwoofer channel signal, the front center channel signal and the unidirectional front channel signal; the first auxiliary speaker unit is configured to play a unidirectional side channel signal; the second auxiliary speaker unit is configured to play a unidirectional rear channel signal; the third auxiliary speaker unit is configured to play One-way sky channel signal; the first auxiliary speaker unit and the second auxiliary speaker unit are respectively arranged on both sides of the vertical use center line of the speaker plate, the main speaker unit and the third auxiliary speaker unit are respectively arranged on both sides of the horizontal use center line of the speaker plate, and the third auxiliary speaker unit is located above the main speaker unit; the center of the main speaker unit is set away from the center of the speaker plate, the distance between the first auxiliary speaker unit and the main speaker unit is smaller than the distance between the second auxiliary speaker unit and the main speaker unit, and the distance between the second auxiliary speaker unit and the main speaker unit is smaller than the distance between the third auxiliary speaker unit and the main speaker unit.

[0006] In some embodiments, the main speaker unit includes a first main speaker subunit and a second main speaker subunit; the first main speaker subunit is configured to play the subwoofer channel signal, and the second main speaker subunit is configured to play the fitting channel signal, wherein the fitting channel signal is fitted by the mid-front channel signal and the unidirectional front channel signal.

[0007] In some embodiments, the first main speaker subunit and the second main speaker subunit are arranged on the same acoustic axis, and the second main speaker subunit is arranged inside the first main speaker subunit.

[0008] In some embodiments, the center of the second main speaker subunit is arranged to be offset from the center of the first main speaker subunit in a direction close to the third auxiliary speaker unit, and the center of the first main speaker subunit is arranged to overlap with the center of the main speaker unit.

[0009] In some embodiments, the main speaker unit includes a first main speaker subunit, a second main speaker subunit and a third main speaker subunit that are independently arranged; the first main speaker subunit is configured to play the subwoofer channel signal, the second main speaker subunit is configured to play the unidirectional front channel signal, and the third main speaker subunit is configured to play the mid-front channel signal.

[0010] In some embodiments, the first main speaker subunit, the second main speaker subunit and the third main speaker subunit are all arranged on the same acoustic axis, the second main speaker subunit is arranged inside the first main speaker subunit, and the third main speaker subunit is arranged inside the second main speaker subunit.

[0011] In some embodiments, the center of the second main speaker subunit is arranged to deviate from the center of the first main speaker subunit in a direction close to the third auxiliary speaker unit, and the center of the first main speaker subunit overlaps with the center of the main speaker unit and the center of the third main speaker subunit.

[0012] In some embodiments, the surface of the speaker plate facing away from the sound-emitting side is set to an arc-shaped surface, and the arc-shaped low point is provided on the arc-shaped surface; the speaker plane of the main speaker unit, the speaker plane of the first auxiliary speaker unit, the speaker plane of the second auxiliary speaker unit and the third auxiliary speaker unit are all tilted toward the arc-shaped low point.

[0013] In some embodiments, the inclination angles of the main speaker unit, the first auxiliary speaker unit, the second auxiliary speaker unit, and the third auxiliary speaker unit are all equal.

[0014] In some embodiments, in the left and right directions, the distance from the center point of the main speaker unit to the low point of the arc, the distance from the center point of the first auxiliary speaker unit to the low point of the arc, the distance from the center point of the second auxiliary speaker unit to the low point of the arc, and the distance from the center point of the third auxiliary speaker unit to the low point of the arc are all equal.

[0015] Implementing one of the above technical solutions of the present application has the following advantages or beneficial effects: In the present application, by setting the main speaker unit on the left and right sides, the first auxiliary speaker unit, the second auxiliary speaker unit and the third auxiliary speaker unit, the audio signals of ten channels can be output respectively through a total of eight speaker units, thereby realizing the real playback of multi-channel audio. The present application can improve the clarity of each channel of multi-channel audio, and can send the sound to each corresponding speaker unit, thereby achieving the effects of high sound separation, clear playback, no distortion, and accurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. It is obvious that the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the acoustic structure of a multi-channel direct-push multi-speaker earphone according to an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of an orthographic projection of the acoustic structure of a multi-channel direct-push multi-speaker earphone according to an embodiment of the present application on a sound-emitting vertical plane;

[0019] Figure 3 It is another orthographic projection schematic diagram of the acoustic structure of the multi-channel direct-push multi-speaker earphone according to an embodiment of the present application on the sound vertical plane;

[0020] Figure 4 It is another schematic diagram of the orthographic projection of the acoustic structure of the multi-channel direct-push multi-speaker earphone according to an embodiment of the present application on the sound vertical plane.

[0021] In the figure: 10, speaker plate; 100, curved surface; 20, main speaker unit; 30, first auxiliary speaker unit; 40, second auxiliary speaker unit; 50, third auxiliary speaker unit; 200, first main speaker sub-unit; 210, second main speaker sub-unit; 220, third main speaker sub-unit. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present application clearer, the various exemplary embodiments to be described below will refer to the corresponding drawings, which constitute a part of the exemplary embodiments, wherein various exemplary embodiments that may be used to implement the present application are described. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present disclosure. It should be understood that they are only examples of processes, methods, and devices that are consistent with some aspects disclosed in the present application as detailed in the attached claims, and other embodiments may also be used, or the embodiments listed herein may be modified in structure and function without departing from the scope and essence of the present application.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", etc. indicate the orientation or positional relationship based on the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the elements referred to must have a specific orientation, be constructed and operated in a specific orientation. The terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "multiple" means two or more. The terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a communication connection, a direct connection, an indirect connection through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0024] In order to illustrate the technical solution described in the present application, a specific embodiment is provided below, and only the parts related to the embodiment of the present application are shown.

[0025] like Figure 1 and Figure 2 As shown, the present application provides a multi-channel direct-push multi-speaker earphone acoustic structure for playing multi-channel audio, including a speaker plate 10 symmetrically arranged on the left and right sides. A plurality of speaker units are arranged at different positions of the speaker plate 10, and the speaker units can be used to play corresponding channel signals.

[0026] In the embodiment of the present application, the speaker disk 10 on the left and right sides and the speaker units on the speaker disk 10 are symmetrically arranged. Only the speaker disk 10 on one side is described below. At the same time, in order to distinguish the difference between the left and right channels, one-way is used to represent the left or right side. In the embodiment of the present application, the left side of the earphone is used for description. Unless otherwise specified, one-way refers to the left side. The side of the speaker facing the user's ear is the sound-emitting side, and the side of the speaker disk 10 facing the user's ear is the sound-emitting vertical surface. The structure is described with the sound-emitting vertical surface in a vertical state.

[0027] In the embodiment of the present application, the disc center O1 may refer to the center of the circle of the orthographic projection contour of the speaker disc 10 on the sound vertical plane, the vertical use center line S1 may refer to a straight line passing through the disc center O1 in the vertical direction, and the horizontal use center line S2 may refer to a straight line passing through the disc center O1 in the horizontal direction. It should be noted that the vertical use center line S1 and the horizontal use center line S2 are auxiliary lines used for reference and may not be present in the actual product.

[0028] In some embodiments, the speaker plates 10 on both sides may include a main speaker unit 20 , a first auxiliary speaker unit 30 , a second auxiliary speaker unit 40 and a third auxiliary speaker unit 50 .

[0029] In some embodiments, the main speaker unit 20 can be configured to play any channel signal among the subwoofer channel signal, the center front channel signal and the unidirectional front channel signal, or the main channel signal, and the main channel signal is arbitrarily fitted from the subwoofer channel signal, the center front channel signal and the unidirectional front channel signal; the first auxiliary speaker unit 30 can be configured to play the unidirectional side channel signal; the second auxiliary speaker unit 40 can be configured to play the unidirectional rear channel signal; the third auxiliary speaker unit 50 can be configured to play the unidirectional sky channel signal. In some embodiments, the main channel signal can be fitted from the subwoofer channel signal, the center front channel signal and the unidirectional front channel signal, or the main channel signal can be fitted from the center front channel signal and the unidirectional front channel signal.

[0030] For the left speaker plate 10, the main speaker unit 20 can play the subwoofer channel signal, the center front channel signal and the left front channel signal, or the main channel signal, and the main channel signal is arbitrarily fitted by the subwoofer channel signal, the center front channel signal and the left front channel signal. For example, the main speaker unit 20 can play the channel signal fitted by the subwoofer channel signal, the center front channel signal and the left front channel signal. The first auxiliary speaker unit 30 can play the left side channel signal; the second auxiliary speaker unit 40 can play the left rear channel signal; and the third auxiliary speaker unit 50 can play the left sky channel signal.

[0031] For the right speaker plate 10, the main speaker unit 20 can play the subwoofer channel signal, the center front channel signal and the right front channel signal, or the main channel signal, and the main channel signal is arbitrarily fitted by the subwoofer channel signal, the center front channel signal and the right front channel signal. For example, the main speaker unit 20 can play the channel signal fitted by the subwoofer channel signal, the center front channel signal and the right front channel signal. The first auxiliary speaker unit 30 can play the right side channel signal; the second auxiliary speaker unit 40 can play the right rear channel signal; and the third auxiliary speaker unit 50 can play the right sky channel signal.

[0032] In some embodiments, the main speaker unit 20 may include at least one speaker. The main speaker unit 20 may include 1 to 3 speakers. That is, the main speaker unit 20 may be one speaker or an integration of multiple speakers.

[0033] Specifically, when the main speaker unit 20 includes three speakers, one speaker in the main speaker unit 20 can be used to play the subwoofer channel signal, another speaker can be used to play the front center channel signal, and another speaker can be used to play the unidirectional front channel signal.

[0034] When the main speaker unit 20 includes two speakers, one speaker in the main speaker unit 20 can be used to play a channel signal formed by fitting two of the subwoofer channel signal, the front center channel signal, and the unidirectional front channel signal, and the other speaker can be used to play the remaining channel signals. For example, one speaker in the main speaker unit 20 can be used to play a channel signal formed by fitting the front center channel signal and the unidirectional front channel signal, and the other speaker can be used to play the subwoofer channel signal.

[0035] When the main speaker unit 20 includes one speaker, the one speaker of the main speaker unit 20 can be used to play the channel signal fitted by the subwoofer channel signal, the front center channel signal and the unidirectional front channel signal.

[0036] In summary, the embodiment of the present application can achieve ten-channel audio playback based on eight speaker units, which can reduce the number of speakers on the headphones, thereby reducing manufacturing costs and reducing the weight of the headphones to improve user experience.

[0037] In some embodiments, the speaker plate 10 may have a vertical use center line S1 and a horizontal use center line S2 that are perpendicular to each other, the first auxiliary speaker unit 30 and the second auxiliary speaker unit 40 may be respectively arranged on both sides of the vertical use center line S1, the main speaker unit 20 and the third auxiliary speaker unit 50 may be respectively arranged on both sides of the horizontal use center line S2, and the third auxiliary speaker unit 50 is located above the main speaker unit 20. The main speaker unit 20 and the third auxiliary speaker unit 50 may be relatively arranged on the vertical use center line S1, that is, the vertical use center line S1 may pass through the main speaker unit 20 and the third auxiliary speaker unit 50. In this case, the sounds emitted by the first auxiliary speaker unit 30 and the second auxiliary speaker unit 40 can be distinguished, thereby improving the accuracy of audio playback. At the same time, by setting the third auxiliary speaker unit 50, the problem of missing overhead sound can be solved, further improving the user experience.

[0038] In some embodiments, the distance from the center of the main speaker unit 20 to the center O1 of the disk body can be smaller than the distance from the center of the first auxiliary speaker unit 30 to the center O1 of the disk body, the distance from the center of the main speaker unit 20 to the center O1 of the disk body can be smaller than the distance from the center of the second auxiliary speaker unit 40 to the center O1 of the disk body, and the distance from the center of the main speaker unit 20 to the center O1 of the disk body can be smaller than the distance from the center of the third auxiliary speaker unit 50 to the center O1 of the disk body. Thus, compared with other speaker units, the main speaker unit 20 can be closer to the center O1 of the disk body, so that the audio played by the main speaker unit 20 can be clearer.

[0039] In some embodiments, the center of the main speaker unit 20 may be located below the center O1 of the disk body, the center of the first auxiliary speaker unit 30 may be located above the center O1 of the disk body, the center of the second auxiliary speaker unit 40 may be located above the center O1 of the disk body, and the center of the third auxiliary speaker unit 50 may be located above the center O1 of the disk body and between the center of the first auxiliary speaker unit 30 and the center of the second auxiliary speaker unit 40. In this case, each speaker unit can better restore the sound effect input from the corresponding direction, so that the real effect of the channel signal played by each speaker unit can be better restored.

[0040] In some embodiments, the center of the main speaker unit 20 may be offset from the center O1 of the speaker plate 10, the distance between the first auxiliary speaker unit 30 and the main speaker unit 20 may be smaller than the distance between the second auxiliary speaker unit 40 and the main speaker unit 20, and the distance between the second auxiliary speaker unit 40 and the main speaker unit 20 may be smaller than the distance between the third auxiliary speaker unit 50 and the main speaker unit 20. In this case, the placement positions of the main speaker unit 20, the first auxiliary speaker unit 30, the second auxiliary speaker unit 40 and the third auxiliary speaker unit 50 on the speaker plate 10 can be matched with the directions of the sounds of the respective channel signals to achieve a better playback effect and provide a better user experience.

[0041] In some embodiments, Figure 3 As shown, the main speaker unit 20 may include a first main speaker subunit 200 and a second main speaker subunit 210. The first main speaker subunit 200 may be configured to play a subwoofer channel signal, and the second main speaker subunit 210 may be configured to play a fitting channel signal, wherein the fitting channel signal is fitted by a mid-front channel signal and a unidirectional front channel signal.

[0042] In some embodiments, the first main speaker subunit 200 and the second main speaker subunit 210 may be arranged on the same acoustic axis, and the second main speaker subunit 210 may be arranged inside the first main speaker subunit 200. In some embodiments, the projection of the first main speaker subunit 200 may be the same as the projection of the main speaker unit 20. The projection refers to the orthographic projection of the speaker plate 10 on the sound vertical plane, and the second main speaker subunit 210 being arranged inside the first main speaker subunit 200 may mean that its projection is located inside the projection of the first main speaker subunit 200.

[0043] In some embodiments, the center of the second main speaker subunit 210 is arranged to deviate from the center of the first main speaker subunit 200 in a direction close to the third auxiliary speaker unit 50 , and the center of the first main speaker subunit 200 overlaps with the center of the main speaker unit 20 .

[0044] To sum up, compared with the method of fitting the subwoofer channel signal, the mid-front channel signal and the unilateral front channel signal, the embodiment of the present application uses the first main speaker subunit 200 to propagate the fitting channel signal fitted by the mid-front channel signal and the unilateral front channel signal, and uses the second main speaker subunit 210 coaxial with the first main speaker subunit 200 to independently propagate the subwoofer channel signal. At the same time, through the above-mentioned position design, the bass effect can be further improved, and the interference of the bass to the main sound, that is, the mid-front channel and the front channel, can be reduced, thereby improving the clarity of the main sound.

[0045] In some embodiments, Figure 4 As shown, the main speaker unit 20 may include a first main speaker subunit 200, a second main speaker subunit 210 and a third main speaker subunit 220 which are independently arranged; the first main speaker subunit 200 may be configured to play a subwoofer channel signal, the second main speaker subunit 210 may be configured to play a unidirectional front channel signal, and the third main speaker subunit 220 may be configured to play a mid-front channel signal.

[0046] In some embodiments, the first main speaker subunit 200, the second main speaker subunit 210 and the third main speaker subunit 220 are all arranged on the same acoustic axis, the second main speaker subunit 210 can be arranged inside the first main speaker subunit 200, and the third main speaker subunit 220 can be arranged inside the second main speaker subunit 210. The second main speaker subunit 210 being arranged inside the first main speaker subunit 200 may mean that its projection is located inside the projection of the first main speaker subunit 200, and the third main speaker subunit 220 being arranged inside the second main speaker subunit 210 may mean that its projection is located inside the projection of the second main speaker subunit 210.

[0047] In some embodiments, the center of the second main speaker subunit 210 can be set away from the center of the first main speaker subunit 200 in a direction close to the third auxiliary speaker unit 50, and the center of the first main speaker subunit 200 overlaps with the center of the main speaker unit 20 and the center of the third main speaker subunit 220.

[0048] In summary, compared with the method of fitting the subwoofer channel signal, the mid-front channel signal, and the unidirectional front channel signal, the embodiment of the present application uses three independent main speaker subunits to transmit the corresponding channel signals, and through the above-mentioned position design, the mutual interference between the three channel signals can be reduced. In addition, the embodiment of the present application integrates the three independent main speaker subunits into the same speaker subunit, which can further reduce the weight and volume.

[0049] In some embodiments, Figure 1 and Figure 2 As shown, the surface of the speaker plate 10 facing away from the sound-emitting side can be set as an arc-shaped surface 100, and the arc-shaped low point O2 is provided on the arc-shaped surface 100; the speaker plane of the main speaker unit 20, the speaker plane of the first auxiliary speaker unit 30, the speaker plane of the second auxiliary speaker unit 40 and the speaker plane of the third auxiliary speaker unit 50 are all inclined toward the arc-shaped low point O2.

[0050] In some embodiments, the first main speaker subunit 200 , the second main speaker subunit 210 , and the third main speaker subunit 220 of the main speaker unit 20 are also tilted toward the arc low point O2 .

[0051] In some embodiments, the arc surface 100 is concave toward the outside in the left-right direction, so as to have an arc low point O2, which is the point farthest from the sound vertical plane. The arc low point O2 is set as close to the center O1 of the disk as possible. In this way, the sound can be concentrated toward the user's ears, reducing the propagation path of the sound, thereby reducing the loss of the sound during the propagation process into the ear.

[0052] In some embodiments, Figure 1 As shown, the tilt angles of the main speaker unit 20, the first auxiliary speaker unit 30, the second auxiliary speaker unit 40, and the third auxiliary speaker unit 50 are all equal. In some embodiments, the tilt angles of the first main speaker subunit 200, the second main speaker subunit 210, and the third main speaker subunit 220 of the main speaker unit 20 are all equal. Figure 1 In is the tilt angle.

[0053] Generally speaking, since the inclination angle changes the propagation path, different solutions need to be processed in the software for different inclination angles to improve the sound quality, which increases the software processing process, causes sound delay, and thus affects the sound performance effect. The embodiment of the present application can make the characteristics of the sound propagation path of each speaker unit uniform, reduce the software processing process, and improve the sound response speed.

[0054] In some embodiments, in the left and right directions, the distance from the center point of the main speaker unit 20 to the arc low point O2, the distance from the center point of the first auxiliary speaker unit 30 to the arc low point O2, the distance from the center point of the second auxiliary speaker unit 40 to the arc low point O2, and the distance from the center point of the third auxiliary speaker unit 50 to the arc low point O2 are all equal.

[0055] In some embodiments, in the left and right directions, the distance from the center point of the first main speaker subunit 200 to the arc low point O2, the distance from the center point of the second main speaker subunit 210 to the arc low point O2, and the distance from the center point of the third main speaker subunit 220 to the arc low point O2 are all equal.

[0056] In this case, the problems of mixing interference and sound cancellation can be reduced, the cleanliness and strength of the sound can be maintained, and the sound emitted by all speaker units can be accurately focused into the user's ear canal, so that the user can obtain the most complete sound wave input and hear all the details of the sound, thereby improving the user experience and satisfaction.

[0057] In the present application, by providing the main speaker unit 20, the first auxiliary speaker unit 30, the second auxiliary speaker unit 40 and the third auxiliary speaker unit 50 on the left and right sides, the audio signals of ten channels can be outputted respectively through a total of eight speaker units, thus realizing the real playback of multi-channel audio. The present application can improve the clarity of each channel of multi-channel audio, and can send the sound to each corresponding speaker unit, thereby achieving the effects of high sound separation, clear playback, no distortion and accurate positioning.

[0058] The above is only the preferred embodiment of the present application. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the protection scope of the present application.

Claims

1. A multi-channel direct-push multi-speaker earphone acoustic structure, characterized in that: include: The speaker plates are symmetrically arranged on the left and right sides, and the speaker plates on both sides include: a main speaker unit, a first auxiliary speaker unit, a second auxiliary speaker unit and a third auxiliary speaker unit; The main speaker unit is configured to play any one of the subwoofer channel signal, the center front channel signal and the unidirectional front channel signal, or the main channel signal, and the main channel signal is arbitrarily fitted by the subwoofer channel signal, the center front channel signal and the unidirectional front channel signal; the first auxiliary speaker unit is configured to play the unidirectional side channel signal; the second auxiliary speaker unit is configured to play the unidirectional rear channel signal; the third auxiliary speaker unit is configured to play the unidirectional sky channel signal; The first auxiliary speaker unit and the second auxiliary speaker unit are respectively arranged on both sides of the vertical use center line of the speaker plate, the main speaker unit and the third auxiliary speaker unit are respectively arranged on both sides of the horizontal use center line of the speaker plate, and the third auxiliary speaker unit is located above the main speaker unit; The center of the main speaker unit is set away from the center of the speaker plate, the distance between the first auxiliary speaker unit and the main speaker unit is smaller than the distance between the second auxiliary speaker unit and the main speaker unit, and the distance between the second auxiliary speaker unit and the main speaker unit is smaller than the distance between the third auxiliary speaker unit and the main speaker unit.

2. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 1 is characterized in that: The main speaker unit includes a first main speaker subunit and a second main speaker subunit; the first main speaker subunit is configured to play the subwoofer channel signal, and the second main speaker subunit is configured to play the fitting channel signal, wherein the fitting channel signal is fitted by the mid-front channel signal and the unidirectional front channel signal.

3. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 2 is characterized in that: The first main speaker subunit and the second main speaker subunit are arranged on the same acoustic axis, and the second main speaker subunit is arranged inside the first main speaker subunit.

4. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 3 is characterized in that: The center of the second main speaker subunit is arranged to be offset from the center of the first main speaker subunit in a direction close to the third auxiliary speaker unit, and the center of the first main speaker subunit is arranged to overlap with the center of the main speaker unit.

5. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 1, characterized in that: The main speaker unit includes a first main speaker subunit, a second main speaker subunit and a third main speaker subunit which are independently arranged; the first main speaker subunit is configured to play the subwoofer channel signal, the second main speaker subunit is configured to play the unidirectional front channel signal, and the third main speaker subunit is configured to play the mid-front channel signal.

6. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 5, characterized in that: The first main speaker subunit, the second main speaker subunit and the third main speaker subunit are all arranged on the same acoustic axis, the second main speaker subunit is arranged inside the first main speaker subunit, and the third main speaker subunit is arranged inside the second main speaker subunit.

7. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 6, characterized in that: The center of the second main speaker subunit is arranged away from the center of the first main speaker subunit in a direction close to the third auxiliary speaker unit, and the center of the first main speaker subunit overlaps with the center of the main speaker unit and the center of the third main speaker subunit.

8. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 1, characterized in that: The surface of the speaker plate facing away from the sound-emitting side is set to an arc-shaped surface, and the arc-shaped low point is provided on the arc-shaped low point; the speaker plane of the main speaker unit, the speaker plane of the first auxiliary speaker unit, the speaker plane of the second auxiliary speaker unit and the third auxiliary speaker unit are all inclined toward the arc-shaped low point.

9. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 8, characterized in that: The inclination angles of the main speaker unit, the first auxiliary speaker unit, the second auxiliary speaker unit, and the third auxiliary speaker unit are all equal.

10. The multi-channel direct-push multi-speaker earphone acoustic structure according to claim 9, characterized in that: In the left and right directions, the distance from the center point of the main speaker unit to the lowest point of the arc, the distance from the center point of the first auxiliary speaker unit to the lowest point of the arc, the distance from the center point of the second auxiliary speaker unit to the lowest point of the arc, and the distance from the center point of the third auxiliary speaker unit to the lowest point of the arc are all equal.

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