Lateral sound emitting structure for sound equipment

Abstract

The utility model provides a side sound emitting structure for sound equipment, and the distance between a first cavity and a first phase inversion hole is equal to the distance between a second cavity and the first phase inversion hole. Therefore, the path length of forward sound waves output outwards through the first cavity and the first phase inversion hole is equal to the path length of reverse sound waves output outwards through the second cavity and the second phase inversion hole, the transmission time of the forward sound waves is the same as that of the reverse sound waves, the alternating continuity of the forward sound waves and the reverse sound waves is good, and the sound output effect is improved. The first phase inversion hole and the second phase inversion hole are symmetrically arranged about the center of the shell, and sound output of forward sound waves and sound output of reverse sound waves are balanced.

Description

Technical Field

[0001] The utility model relates to the technical field of audio, in particular to a side sound outlet structure for audio. Background Art

[0002] Speakers are commonly used audio output devices and are widely used in people's lives. All speakers in the prior art can be roughly divided into: fully enclosed speakers and bass reflex speakers; in fully enclosed speakers, the speakers can only release forward sound waves; in bass reflex speakers, the back sound waves of the speakers are superimposed on the forward sound waves by using the effect of the cabinet and the bass reflex tube.

[0003] The existing bass reflex speakers have two sound output directions. In the first sound output direction, the radiation direction of the forward sound wave is opposite to the radiation direction of the backward sound wave; the sound output directions of the forward sound wave and the backward sound wave are opposite, and the sound output is unbalanced; in the first sound output direction, the radiation direction of the forward sound wave is opposite to the radiation direction of the backward sound wave; but the bass reflex tube is located on the side of the speaker away from the user, so the sound transmission distance is long and the sound output efficiency is low.

[0004] A patent document in China with application number 201620260684.3 and publication date 2016.8.24 discloses a sound-generating device, wherein at least one sound outlet is provided on a shell, a sound source is arranged on the shell, and the front of the sound source faces the outside of the shell, and the back of the sound source faces the inside of the shell, so as to form a sound wave propagation channel in the area surrounded by the back of the sound source and the inner surface of the shell; at least one detachable tuning device is also arranged on the shell, and the inner cavity of the tuning device is connected to the sound wave propagation channel, so that the back sound waves of the sound source propagate in the inner cavity of the tuning device and the sound wave propagation channel and pass through the sound outlet.

[0005] In this sound-emitting device, the forward sound wave of the sound source is directly output from the shell, while the backward sound wave of the sound source needs to be reflected by the propagation channel before being output through the sound outlet. The sound intensity of the forward sound wave is inconsistent with that of the backward sound wave. At the same time, the length of the forward sound wave transmission path is inconsistent with the length of the backward sound wave transmission path. The forward sound wave and the backward sound wave are not connected, and thus the forward sound wave and the backward sound wave on the shell cannot maintain balance, resulting in a poor sound effect. Summary of the invention

[0006] The utility model provides a side sound outlet structure for an audio system, wherein the forward sound wave and the reverse sound wave have the same transmission time, the forward sound wave and the reverse sound wave have good alternating continuity, and the sound outlet effect is improved. The first inverted phase hole and the second inverted phase hole are symmetrically arranged about the center of the housing, and the forward sound wave and the reverse sound wave have balanced sound outlet.

[0007] To achieve the above-mentioned purpose, the technical solution of the utility model is: a side-sound structure for an audio system, comprising a shell, a partition is provided inside the shell, the partition divides the inside of the shell into a first cavity and a second cavity, the partition is used to install a speaker and separate the forward sound waves and the backward sound waves emitted by the speaker; a first inverted hole is provided on one side of the end of the shell, and a second inverted hole is provided on the other side of the same end of the first inverted hole; the first inverted hole and the second inverted hole are symmetrically arranged about the center of the shell; the first inverted hole is inclined outwardly with respect to the center of the shell, and the second inverted hole is inclined outwardly with respect to the center of the shell; an angle θ is formed between the first inverted hole and the second inverted hole, 80<θ<170°; the first inverted hole is connected to the first cavity, and the second inverted hole is connected to the second cavity; the distance between the first cavity and the first inverted hole, and the distance between the second cavity and the first inverted hole are equal.

[0008] In the above arrangement, the forward sound wave is output through the first inverted hole, and the reverse sound wave is output through the second inverted hole, so that the forward sound wave and the reverse sound wave are superimposed. Since the distance between the first cavity and the first inverted hole is equal to the distance between the second cavity and the first inverted hole, the path length of the forward sound wave output through the first cavity and the first inverted hole is equal to the path length of the reverse sound wave output through the second cavity and the second inverted hole. The transmission time of the forward sound wave and the reverse sound wave is the same, and the alternation of the forward sound wave and the reverse sound wave has good continuity, so that the sound output of the forward sound wave and the reverse sound wave is balanced, and the sound output effect is improved. At the same time, the first inverted hole and the second inverted hole are symmetrically arranged about the center of the shell, and the forward sound wave and the reverse sound wave have the same symmetrical outward radiation area about the center of the shell, and the balance is good.

[0009] At the same time, the first bass reflex port and the second bass reflex port are both arranged on the same end of the shell and are inclined relative to the shell; the problem of low sound output efficiency caused by the forward sound wave and the backward sound wave being transmitted in opposite directions is solved; the problem of small coverage range caused by the forward sound wave and the backward sound wave being transmitted in the same direction is solved; while ensuring a large coverage range of the forward sound wave and the backward sound wave, the sound output efficiency of the speaker is improved.

[0010] Furthermore, the angle θ is 90°.

[0011] The above settings further improve the coverage of forward sound waves and reverse sound waves.

[0012] Furthermore, there are more than two first inverted holes, and adjacent first inverted holes are arranged along the height direction of the shell; there are more than two second inverted holes, and adjacent second inverted holes are arranged along the height direction of the shell.

[0013] The above configuration, by providing more than two first inverted holes, enables the forward sound waves to be emitted at different levels, thereby improving the coverage of the forward sound waves. By providing more than two second inverted holes, enables the backward sound waves to be emitted at different levels, thereby improving the coverage of the backward sound waves.

[0014] Furthermore, a first wall surface is provided on the inner wall of the shell close to the first cavity, the first wall surface is arranged opposite to the partition plate, and more than three first partitions are protruding from the first wall surface toward the first cavity, and adjacent first partitions are arranged at intervals along the height direction of the shell; a first inverted hole is formed between adjacent first partitions.

[0015] In the above arrangement, the first inverted hole is located at the ends of the two first partitions, and the forward sound wave is transmitted along the length direction of the first partition, and the transmission of the forward sound wave at different levels is guided by the first partition.

[0016] Furthermore, a second wall surface is provided on the inner wall of the shell close to the second cavity, the second wall surface is arranged opposite to the partition plate, and more than three second partitions are protruding from the second wall surface toward the second cavity, and adjacent second partitions are arranged at intervals along the height direction of the shell; second inverted holes are formed between adjacent second partitions.

[0017] In the above arrangement, the second inverted holes are located at the ends of the two second partitions, and the back sound waves are transmitted along the length direction of the second partitions, and the transmission of the back sound waves at different levels is guided by the second partitions.

[0018] Furthermore, at least one reinforcement member is provided in the second cavity, one end of the reinforcement member is connected to the inner wall of the outer shell away from the partition, and the other end of the reinforcement member is connected to the partition.

[0019] With the above arrangement, since the speaker will vibrate back and forth when making a sound, the partition is supported by the reinforcement to improve the rigidity of the partition. The force of the speaker on the partition is offset by the force of the reinforcement on the partition, thereby improving the stability of the outer shell and preventing the outer shell from moving or tipping over due to the vibration of the speaker.

[0020] Further, the reinforcement member includes a first vertical support portion, a second vertical support portion, a horizontal support portion and an inclined support portion; the horizontal support portion is arranged away from the partition and connected to the inner wall of the shell, and the first vertical support portion and the second vertical support portion are arranged in parallel on the horizontal support portion and extend toward the partition;

[0021] The length of the first vertical support portion is greater than that of the second vertical support portion; the end of the first vertical support portion is connected to the partition; the inclined support portion is connected between the first vertical support portion and the second vertical support portion and is arranged away from the horizontal support portion.

[0022] In the above arrangement, the first vertical support part connects the partition and the horizontal support part to support the partition, and the second vertical support part cooperates with the inclined support part to support the first vertical support part, which has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0024] Figure 2 This is a top view of the utility model with a speaker installed.

[0025] Figure 3 for Figure 2 Sectional view of AA.

[0026] Figure 4 for Figure 2 The cross-sectional view of the AA after removing the speaker.

[0027] Figure 5 for Figure 4 Enlarged view of D in the middle.

[0028] Figure 6 for Figure 2 Cross-sectional view of BB.

[0029] Figure 7 for Figure 2 Cross-sectional view of CC. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1-7 As shown, a side-outlet sound structure for an audio system comprises a shell 1, inside of which a partition plate 2 is provided, the partition plate 2 divides the inside of the shell 1 into a first cavity 3 and a second cavity 4, the partition plate 2 is used to mount a speaker 5 and separate the forward sound waves and the backward sound waves emitted by the speaker 5; a first inverted hole 6 is provided on one side of an end of the shell 1, and a second inverted hole 7 is provided on the other side of the same end of the first inverted hole 6; the first inverted hole 6 and the second inverted hole 7 are symmetrically arranged about the center of the shell 1; the first inverted hole 6 is inclined outwardly arranged about the center of the shell 1, and the second inverted hole 7 is inclined outwardly arranged about the center of the shell 1; the first inverted hole 6 is connected with the first cavity 3, and the second inverted hole 7 is connected with the second cavity 4; the distance between the first cavity 3 and the first inverted hole 6, and the distance between the second cavity 4 and the first inverted hole 6 are equal.

[0032] The forward sound wave is output through the first inverted hole 6, and the reverse sound wave is output through the second inverted hole 7, so that the forward sound wave and the reverse sound wave are superimposed. Since the distance between the first cavity 3 and the first inverted hole 6 is equal to the distance between the second cavity 4 and the first inverted hole 6, the path length of the forward sound wave output through the first cavity 3 and the first inverted hole 6 is equal to the path length of the reverse sound wave output through the second cavity 4 and the second inverted hole 7. The forward sound wave and the reverse sound wave are transmitted at the same time, and the alternating continuity of the forward sound wave and the reverse sound wave is good. The forward sound wave and the reverse sound wave are balanced in sound output, thereby improving the sound output effect. The first inverted hole 6 and the second inverted hole 7 are symmetrically arranged about the center of the housing 1, and the forward sound wave and the reverse sound wave are symmetrically radiated outwardly with the same area about the center of the housing 1, and have good balance.

[0033] At the same time, the first inverted hole 6 and the second inverted hole 7 are both arranged on the same end of the housing 1, and are arranged obliquely relative to the housing 1; the problem of low sound efficiency caused by the forward sound wave and the backward sound wave being transmitted in opposite directions is solved; the problem of small coverage caused by the forward sound wave and the backward sound wave being transmitted in the same direction is solved; an angle θ is formed between the first inverted hole 6 and the second inverted hole 7, 80<θ<170°; while ensuring a large coverage range for the forward sound wave and the backward sound wave, the sound efficiency of the speaker is improved. In this embodiment, the angle θ is 90°. This further improves the coverage range of the forward sound wave and the backward sound wave.

[0034] The housing 1 is provided with a first wall surface 11 on the inner wall close to the first cavity 3, and the first wall surface 11 is arranged opposite to the partition plate 2. The first wall surface 11 is provided with more than three first partitions 12 protruding toward the first cavity 3, and adjacent first partitions 12 are arranged at intervals along the height direction of the housing 1; a first inverted hole 6 is formed between adjacent first partitions 12. The first inverted hole 6 is located at the end of two first partitions 12, and the forward sound wave is transmitted along the length direction of the first partition 12, and the transmission of the forward sound wave at different horizontal heights is guided by the first partition 12.

[0035] The housing 1 is provided with a second wall surface 13 on the inner wall near the second cavity 4, the second wall surface 13 is arranged opposite to the partition plate 2, and the second wall surface 13 is provided with more than three second partitions 14 protruding toward the second cavity 4, and adjacent second partitions 14 are arranged at intervals along the height direction of the housing 1; and second inverted holes 7 are formed between adjacent second partitions 14. The second inverted holes 7 are located at the ends of the two second partitions 14, and the back sound waves are transmitted along the length direction of the second partitions 14, and the transmission of the back sound waves at different horizontal heights is guided by the second partitions 14.

[0036] By setting the first partition 12 at intervals, more than two first inverted holes 6 are formed, and the adjacent first inverted holes 6 are arranged along the height direction of the housing 1; the forward sound waves are emitted at different levels, and the coverage of the forward sound waves is improved. By setting the second partition 14 at intervals, more than two second inverted holes 7 are formed, and the adjacent second inverted holes 7 are arranged along the height direction of the housing 1; the backward sound waves are emitted at different levels, and the coverage of the backward sound waves is improved.

[0037] One or more reinforcement members 8 are provided in the second cavity 4, one end of the reinforcement member 8 is connected to the inner wall of the housing 1 away from the partition 2, and the other end of the reinforcement member 8 is connected to the partition 2. Since the speaker 5 will vibrate back and forth when making a sound, the reinforcement member 8 is used to support the partition 2 to improve the rigidity of the partition 2. The force of the reinforcement member 8 on the partition 2 offsets the force of the speaker 5 on the partition 2, thereby improving the stability of the housing 1 and preventing the housing 1 from moving or tipping over due to the vibration of the speaker 5.

[0038] The reinforcing member 8 includes a first vertical supporting portion 81, a second vertical supporting portion 82, a horizontal supporting portion 83 and an inclined supporting portion 84; the horizontal supporting portion 83 is arranged away from the partition 2. Figure 5 and Figure 7 As shown, in this example, the horizontal support portion 83 of the reinforcement member 8 farthest from the second inverted hole 7 is connected to the inner wall of the housing 1 , and the horizontal support portions 83 of the remaining reinforcement members 8 are connected to the second partition member 14 through the bottom plate 9 .

[0039] The first vertical support portion 81 and the second vertical support portion 82 are arranged in parallel on the horizontal support portion 83 and extend toward the partition 2; the length of the first vertical support portion 81 is greater than the length of the second vertical support portion 82; the end of the first vertical support portion 81 is connected to the partition 2; the inclined support portion 84 is connected between the first vertical support portion 81 and the second vertical support portion 82 and is arranged away from the horizontal support portion 83. The partition 2 and the horizontal support portion 83 are connected by the first vertical support portion 81, and the horizontal support portion 83 is supported on the partition 2, and the second vertical support portion 82 cooperates with the inclined support portion 84 to support the first vertical support portion 81, which has good stability.

[0040] According to the principle of the utility model, the speaker 5 is installed on the partition 2, the diaphragm of the speaker 5 is accommodated in the first cavity 3, and the base of the speaker 5 is accommodated in the second cavity 4, so that the forward sound waves emitted by the speaker 5 are transmitted outward in the first cavity 3, and the reverse sound waves emitted by the speaker 5 are transmitted outward in the second cavity 4.

Claims

1. A side-outlet sound structure for an audio system, comprising a housing, characterized in that: A partition is provided inside the shell, which divides the inside of the shell into a first cavity and a second cavity, and the partition is used to install a speaker and separate the forward sound waves and the backward sound waves emitted by the speaker; a first inverted hole is provided on one side of the end of the shell, and a second inverted hole is provided on the other side of the same end of the first inverted hole; the first inverted hole and the second inverted hole are symmetrically arranged about the center of the shell; the first inverted hole is inclined outwardly with respect to the center of the shell, and the second inverted hole is inclined outwardly with respect to the center of the shell; an angle θ is formed between the first inverted hole and the second inverted hole, 80<θ<170°; the first inverted hole is connected with the first cavity, and the second inverted hole is connected with the second cavity; the distance between the first cavity and the first inverted hole, and the distance between the second cavity and the first inverted hole are equal.

2. The side sound outlet structure for an audio system according to claim 1, characterized in that: The included angle θ is 90°.

3. The side sound outlet structure for an audio system according to claim 1, characterized in that: There are more than two first inverted holes, and adjacent first inverted holes are arranged along the height direction of the shell; there are more than two second inverted holes, and adjacent second inverted holes are arranged along the height direction of the shell.

4. The side sound outlet structure for an acoustic device according to claim 3, characterized in that: The inner wall of the shell close to the first cavity is provided with a first wall surface, the first wall surface is arranged opposite to the partition plate, the first wall surface is provided with more than three first partitions protruding toward the first cavity, and adjacent first partitions are arranged at intervals along the height direction of the shell; adjacent first partitions form a first inverted hole.

5. The side sound outlet structure for an acoustic device according to claim 4, characterized in that: A second wall surface is provided on the inner wall of the shell near the second cavity, the second wall surface is arranged opposite to the partition plate, and more than three second partitions are protruding from the second wall surface toward the second cavity. Adjacent second partitions are arranged at intervals along the height direction of the shell; second inverted holes are formed between adjacent second partitions.

6. The side sound outlet structure for an acoustic device according to claim 1, characterized in that: One or more reinforcing members are arranged in the second cavity, one end of the reinforcing member is connected to the inner wall of the shell away from the partition, and the other end of the reinforcing member is connected to the partition.

7. The side sound outlet structure for an acoustic device according to claim 6, characterized in that: The reinforcement member includes a first vertical support portion, a second vertical support portion, a horizontal support portion and an inclined support portion; the horizontal support portion is arranged away from the partition and connected to the inner wall of the shell, and the first vertical support portion and the second vertical support portion are arranged in parallel on the horizontal support portion and extend toward the partition; The length of the first vertical support portion is greater than that of the second vertical support portion; the end of the first vertical support portion is connected to the partition; the inclined support portion is connected between the first vertical support portion and the second vertical support portion and is arranged away from the horizontal support portion.

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