Sound equipment

Abstract

The invention discloses sound equipment, and relates to the technical field of sound equipment, the sound equipment comprises a shell, a low frequency enhancement unit and a plurality of sound production units, the shell comprises an inner annular plate and an outer annular plate, the inner annular plate and the outer annular plate are enclosed to form an annular cavity, and the inner annular plate is provided with sound outlet holes; the plurality of sound production units are all contained in the annular cavity and are arranged on the outer annular plate at intervals in the circumferential direction of the shell, the low-frequency enhancement unit is provided with a sound production surface, and the low-frequency enhancement unit is arranged on the inner annular plate in the mode that the sound production surface faces the sound production hole. According to the technical scheme provided by the invention, the technical problem of poor directivity of the existing sound equipment during sound production can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of audio equipment, and in particular to an audio device. Background Art

[0002] Speakers refer to devices that can convert electrical signals into sound signals. They are a key component of the audio system and are used to play music, movie dialogues, game sound effects and other audio content. However, existing speakers have the problem of poor directionality when making sounds.

[0003] Therefore, it is necessary to provide a new sound system to solve the above-mentioned technical problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a speaker, aiming to solve the technical problem that the existing speakers have poor directivity when emitting sound.

[0005] To achieve the above object, the present invention provides a sound system, characterized in that it comprises:

[0006] The outer shell comprises an inner annular plate and an outer annular plate, the inner annular plate and the outer annular plate are arranged to form an annular cavity, and the inner annular plate is formed with a sound outlet hole;

[0007] A plurality of sound generating units, each of which is accommodated in the annular cavity and is arranged on the outer annular plate at intervals along the circumference of the shell;

[0008] A low-frequency enhancement unit is provided with a sound outlet surface, and the low-frequency enhancement unit is arranged on the inner annular plate in a manner that the sound outlet surface faces the sound outlet hole.

[0009] The technical solution of the present invention can achieve 360° omnidirectional sound emission by arranging a plurality of sound-emitting units on the outer annular plate at intervals along the circumference of the shell, so as to solve the problem of poor directivity of the existing sound; at the same time, by arranging the low-frequency enhancement unit 3 on the inner annular plate with its sound-emitting surface facing the sound outlet, low-frequency enhancement can be achieved, and a sound response with a large range and strong bass can be achieved. In an embodiment of the present invention, a plurality of sound-emitting units are arranged on the outer annular plate at intervals along the circumference of the shell, which enables the sound to emit sound in multiple different directions, that is, to achieve 360° omnidirectional sound emission, which can solve the problem of poor directivity of the existing sound. Moreover, when installing and placing the sound, there is no need to consider the direction and position of the sound, and no matter where the user is in the sound, he can hear a strong sound and get an excellent sound quality experience. The sound outlet is connected to the outside world, and the low-frequency enhancement unit can transmit the sound to the outside world through the sound outlet, so as to achieve the effect of low-frequency enhancement, and then achieve a sound response with a large range and strong bass, that is, to expand the audio range emitted by the sound. Furthermore, the speaker can more effectively utilize the space of the speaker and reduce the occupied space of the speaker by installing the sound unit on the outer annular plate and the low-frequency enhancement unit on the inner annular plate, that is, installing the sound unit and the low-frequency enhancement unit in the same cavity. The speaker is applied to technical fields such as sound systems and sound equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0011] Figure 1 A schematic diagram of the structure of the speaker in the first embodiment of the present invention;

[0012] Figure 2 for Figure 1 Schematic diagram from another perspective;

[0013] Figure 3 This is a schematic diagram of the structure of the speaker (without the cover plate) in the first embodiment of the present invention;

[0014] Figure 4 This is a schematic diagram of the structure of the speaker (without the cover) in the second embodiment provided by the present invention;

[0015] Figure 5 This is a schematic diagram of the structure of the speaker (without the cover) in the third embodiment provided by the present invention.

[0016] Description of Figure Numbers:

[0017] 100, outer shell; 110, inner annular plate; 111, sound outlet hole; 112, through hole; 113, opening; 120, outer annular plate; 130, annular cavity; 140, connecting plate; 150, cover plate; 151, rubber pad; 200, sound unit; 300, low-frequency enhancement unit; 310, bass reflex tube; 320, low-frequency speaker; 330, passive radiator; 400, sealing plate.

[0018] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.

[0022] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] Speakers refer to devices that can convert electrical signals into sound signals. They are a key component of the audio system and are used to play music, movie dialogues, game sound effects and other audio content. However, researchers have found that existing speakers can usually only emit sound in a fixed direction when emitting sound, and have the problem of poor directivity, which will lead to a decline in user experience. For example, most existing speakers can only emit sound in a fixed direction, the front. When the user is at the side or back of the speaker, the sound that the user can hear will be greatly lost, that is, the sound that the user can hear is weaker.

[0024] The present invention provides a speaker, aiming to solve the technical problem that the existing speakers have poor directivity when emitting sound.

[0025] See also Figures 1 to 3 In one embodiment of the present invention, the speaker includes a housing 100, a low-frequency enhancement unit 300 and a plurality of sound-emitting units 200. The housing 100 includes an inner annular plate 110 and an outer annular plate 120. The inner annular plate 110 and the outer annular plate 120 are arranged to form an annular cavity 130. The inner annular plate 110 is formed with a sound outlet 111. The plurality of sound-emitting units 200 are all accommodated in the annular cavity 130 and are arranged on the outer annular plate 120 at intervals along the circumference of the housing 100. The low-frequency enhancement unit 300 has a sound outlet surface. The low-frequency enhancement unit 300 is arranged on the inner annular plate 110 with the sound outlet surface facing the sound outlet 111.

[0026] The technical solution of the present invention can achieve 360° omnidirectional sound emission by arranging a plurality of sound-emitting units 200 on the outer annular plate 120 at intervals along the circumference of the housing 100, so as to solve the problem of poor directivity of the existing speakers; at the same time, by arranging the low-frequency enhancement unit 300 on the inner annular plate 110 with its sound-emitting surface facing the sound-emitting hole 111, low-frequency enhancement can be achieved, and a sound response with a large range and strong bass can be achieved. In an embodiment of the present invention, a plurality of sound-emitting units 200 are arranged on the outer annular plate 120 at intervals along the circumference of the housing 100, which enables the speaker to emit sound in multiple different directions, that is, to achieve 360° omnidirectional sound emission, which can solve the problem of poor directivity of the existing speakers. Moreover, when installing and placing the speaker, there is no need to consider the orientation and position of the speaker. No matter where the user is in the speaker, he can hear a strong sound and get an excellent sound quality experience. The sound outlet 111 is connected to the outside world, and the low-frequency enhancement unit 300 can conduct the sound to the outside world through the sound outlet 111, thereby achieving the effect of low-frequency enhancement, and then achieving a sound response with a large range and strong bass, that is, expanding the audio range emitted by the speaker. In addition, the speaker installs the sound unit 200 on the outer annular plate 120 and the low-frequency enhancement unit 300 on the inner annular plate 110, that is, the sound unit 200 and the low-frequency enhancement unit 300 are installed in the same cavity, which can make more effective use of the space of the speaker and reduce the space occupied by the speaker. The speaker is applied to technical fields such as audio systems and audio equipment.

[0027] It should be noted that the low frequency enhancement is to enhance the low frequency part of the audio signal to enhance the user's perception of the bass and improve the auditory experience. In this embodiment, the sound unit 200 can be a full-range speaker or a bass + tweeter.

[0028] See also Figure 3 In one embodiment of the present invention, the low-frequency enhancement unit 300 includes a reflex tube 310 accommodated in the annular cavity 130, the reflex tube 310 is arranged on the inner annular plate 110, and the sound outlet surface is arranged on the reflex tube 310. There are multiple reflex tubes 310, and the number of reflex tubes 310 is equal to the number of sound units 200 and is arranged one by one. In this embodiment, the low-frequency enhancement unit 300 is a reflex tube 310, and the number of reflex tubes 310 is equal to the number of sound units 200 and is arranged one by one; that is, each sound unit 200 is correspondingly provided with a reflex tube 310, which can enhance the low-frequency output capability of the sound system. The bass reflex tube 310 is installed in the annular cavity 130, and when the sound unit 200 vibrates, the air column in the bass reflex tube 310 will also vibrate, generating sound waves with a phase opposite to the sound waves in front of the sound unit 200, which are then transmitted to the outside through the sound outlet 111 and added to the sound waves of the sound unit 200 at a specific frequency to enhance the low-frequency output.

[0029] In one embodiment of the present invention, one end of the inverted tube 310 is placed in the annular cavity 130 and is spaced apart from the corresponding sound unit 200, and the other end is arranged on the inner annular plate 110, and the sound outlet surface is arranged at the end where the inverted tube 310 and the inner annular plate 110 are connected. In the embodiment of the present invention, a certain distance is maintained between the end of the inverted tube 310 away from the inner annular plate 110 and the corresponding sound unit 200, which can reduce sound distortion and airflow noise; the sound outlet surface is arranged at the end where the inverted tube 310 and the inner annular plate 110 are connected, which enables the inverted tube 310 to conduct sound to the outside through the sound outlet hole 111.

[0030] See also Figure 1 and Figure 3 In one embodiment of the present invention, a through hole 112 is provided on the inner annular plate 110, and the inverted tube 310 is disposed at the through hole 112, and the annular cavity 130 is connected to the sound outlet 111 through the inverted tube 310 and the through hole 112. In an embodiment of the present invention, the annular cavity 130 is connected to the sound outlet 111 through the inverted tube 310 and the through hole 112. When the sound unit 200 makes a sound, the air column in the inverted tube 310 will also vibrate, generating a sound wave with a phase opposite to that of the sound wave in front of the sound unit 200, which is then transmitted to the outside through the through hole 112 and the sound outlet 111, and added to the sound wave of the sound unit 200 at a specific frequency to enhance the low-frequency output.

[0031] See also Figure 4 In another embodiment of the present invention, the low-frequency enhancement unit 300 includes a passive radiator 330, and the number of the passive radiators 330 is multiple, and the number of the passive radiators 330 is equal to the number of the sound-emitting units 200 and is arranged one-to-one, and the passive radiator 330 is provided with a sound output surface. In this embodiment, the low-frequency enhancement unit 300 is a passive radiator 330, and the number of the passive radiators 330 is equal to the number of the sound-emitting units 200 and is arranged one-to-one; that is, each sound-emitting unit 200 is provided with a passive radiator 330, which can enhance the low-frequency output capability of the speaker. Specifically, the passive radiator 330 is composed of a diaphragm without a voice coil and a magnet, and enhances the low-frequency output through the resonance of the air inside the speaker and the diaphragm.

[0032] See also Figure 5In another embodiment of the present invention, the low-frequency enhancement unit 300 includes a low-frequency speaker 320, the number of the low-frequency speakers 320 is multiple, the number of the low-frequency speakers 320 is equal to the number of the sound-emitting units 200 and is arranged one-to-one, and the low-frequency speakers 320 are provided with a sound output surface. In this embodiment, the low-frequency enhancement unit 300 is a low-frequency speaker 320, and the number of the low-frequency speakers 320 is equal to the number of the sound-emitting units 200 and is arranged one-to-one. Specifically, the low-frequency speaker 320 can generate sound waves with a longer wavelength, thereby generating a deep and impactful bass effect, and enhancing the low-frequency output.

[0033] In another embodiment of the present invention, the low-frequency enhancement unit 300 includes a low-frequency speaker 320 and a passive radiator 330. The number of the low-frequency speakers 320 and the number of the passive radiators 330 are both multiple, and the sum of the number of the low-frequency speakers 320 and the number of the passive radiators 330 is equal to the number of the sound-emitting units 200. One sound-emitting unit 200 is correspondingly provided with one low-frequency speaker 320 or one passive radiator 330, and both the low-frequency speaker 320 and the passive radiator 330 are provided with a sound-emitting surface. Specifically, the low-frequency speaker 320 and the passive radiator 330 are both suitable for the case where the annular cavity 130 is a closed cavity, and the inverted tube 310 is suitable for the case where the annular cavity 130 is connected to the sound outlet 111. Therefore, in each embodiment of the audio system, the low-frequency speaker 320 and the passive radiator 330 can be replaced with each other.

[0034] See also Figure 1 and Figure 3 In one embodiment of the present invention, the speaker further includes a blocking plate 400, which is disposed on one end of the sound outlet 111. In this embodiment, the blocking plate 400 is disposed on one end of the sound outlet 111, that is, one end of the sound outlet 111 is sealed, and the blocking plate 400 can be used to reflect the sound to enhance the loudness of the sound.

[0035] See also Figure 3In one embodiment of the present invention, the housing 100 further includes a connecting plate 140 and a cover plate 150 connecting the inner annular plate 110 and the outer annular plate 120. An opening 113 is provided between the side of the inner annular plate 110 away from the connecting plate 140 and the side of the outer annular plate 120 away from the connecting plate 140, and the cover plate 150 is provided at the opening 113. In this embodiment, the inner annular plate 110 and the outer annular plate 120 connected in sequence from the inside to the outside are enclosed to form an annular cavity 130, and the two ends of the annular cavity 130 are blocked by the connecting plate 140 and the cover plate 150. It has the characteristics of simple structure and convenient manufacturing, which can reduce the difficulty of making the sound; at the same time, the end surface of the annular cavity 130 is sealed, which can reduce the interference of sound waves, so as to provide a clearer and more accurate low-frequency response, and at the same time, it can also reduce distortion. In a specific embodiment, the inner annular plate 110, the connecting plate 140 and the outer annular plate 120 of the housing can be connected by bolting or bonding, or can be made in an integrated manner. In this embodiment, the through hole 112 is opened on the inner annular plate 110 , the inner annular plate 110 is formed with a sound outlet hole 111 , and the blocking plate 400 and the cover plate 150 are integrally formed.

[0036] See also Figures 3 to 5 In one embodiment of the present invention, the inner annular plate 110 and the outer annular plate 120 are both polygonal; or, the inner annular plate 110 and the outer annular plate 120 are both circular. Specifically, the inner annular plate 110 and the outer annular plate 120 can both be polygonal, or both be circular, or one can be polygonal and the other circular. It only needs to ensure that the inner annular plate 110 and the outer annular plate 120 can be arranged to form an annular cavity 130. In a specific embodiment, the inner annular plate 110 and the outer annular plate 120 are both pentagonal. In this embodiment, the height of the inner annular plate 110 and the outer annular plate 120 is much smaller than the distance between the outer annular plate 120 and the central axis of the outer shell 100, that is, the speaker is flat, which can ensure the stability of the speaker when placed on a desktop, the ground, etc.

[0037] See also Figure 2 In one embodiment of the present invention, a rubber pad 151 is disposed on the cover plate 150. The speaker can be placed on a table, the ground, etc. through the rubber pad 151 to ensure the stability of the speaker when placed. At the same time, the rubber pad 151 can also reduce the vibration of the speaker when the speaker is in use, thereby reducing the generation of noise. In a specific embodiment, there are multiple rubber pads 151, and the multiple rubber pads 151 are arranged in a ring shape on the cover plate 150.

[0038] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sound system, characterized in that: include: The outer shell comprises an inner annular plate and an outer annular plate, the inner annular plate and the outer annular plate are arranged to form an annular cavity, and the inner annular plate is formed with a sound outlet hole; A plurality of sound generating units, each of which is accommodated in the annular cavity and is arranged on the outer annular plate at intervals along the circumference of the shell; A low-frequency enhancement unit is provided with a sound outlet surface, and the low-frequency enhancement unit is arranged on the inner annular plate in a manner that the sound outlet surface faces the sound outlet hole.

2. The speaker according to claim 1, wherein: The low-frequency enhancement unit includes an inverted tube accommodated in the annular cavity, the inverted tube is arranged on the inner annular plate, the sound outlet surface is arranged on the inverted tube, there are multiple inverted tubes, the number of which is equal to the number of the sound-emitting units and is arranged one-to-one.

3. The sound system according to claim 2, wherein: One end of the inverted tube is placed in the annular cavity and spaced apart from the corresponding sound-generating unit, and the other end is arranged on the inner annular plate. The sound-emitting surface is arranged at one end of the inverted tube connected to the inner annular plate.

4. The speaker according to claim 3, characterized in that The inner annular plate is provided with a through hole, the inverted tube is arranged at the through hole, and the annular cavity is communicated with the sound outlet hole through the inverted tube and the through hole.

5. The speaker according to claim 1, wherein: The low-frequency enhancement unit comprises a low-frequency speaker, the number of the low-frequency speakers is multiple, the number of the low-frequency speakers is equal to the number of the sound-emitting units and is arranged one-to-one, and the low-frequency speaker is provided with the sound-emitting surface; Alternatively, the low-frequency enhancement unit includes a passive radiator, the number of the passive radiators is multiple, the number of the passive radiators is equal to the number of the sound-emitting units and is arranged in a one-to-one correspondence, and the passive radiator is provided with the sound-emitting surface.

6. The speaker according to claim 1, wherein: The low-frequency enhancement unit includes a low-frequency speaker and a passive radiator, the number of the low-frequency speakers and the number of the passive radiators are both multiple, the sum of the number of the low-frequency speakers and the number of the passive radiators is equal to the number of the sound-emitting units, and one sound-emitting unit is correspondingly provided with one low-frequency speaker or one passive radiator, and the low-frequency speaker and the passive radiator are both provided with the sound-emitting surface.

7. The speaker according to claim 1, wherein: The speaker also includes a blocking plate, which is covered at one end of the sound outlet.

8. The speaker according to any one of claims 1 to 7, characterized in that: The shell also includes a connecting plate and a cover plate connecting the inner annular plate and the outer annular plate. An opening is provided between a side of the inner annular plate away from the connecting plate and a side of the outer annular plate away from the connecting plate. The cover plate covers the opening.

9. The sound system according to claim 8, wherein: The inner annular plate and the outer annular plate are both polygonal; Alternatively, the inner annular plate and the outer annular plate are both circular.

10. The sound system according to claim 8, wherein: The cover plate is provided with a rubber pad.

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