CN214544771U - Loudspeaker device - Google Patents

Abstract

The utility model discloses a loudspeaker device, loudspeaker device includes: the loudspeaker comprises a loudspeaker, wherein the loudspeaker comprises a first loudspeaker unit, the first loudspeaker unit comprises a first loudspeaker body and a first vibrating diaphragm, and the first vibrating diaphragm is arranged on the first loudspeaker body; the loudspeaker comprises a sound cavity fixing part and a loudspeaker body, wherein the sound cavity fixing part comprises a first sound cavity and a connecting sound cavity, a first connecting port is arranged at one end of the first sound cavity and communicated with the connecting sound cavity, the cross-sectional area of the first connecting port is larger than that of a first diaphragm contour area, and a first loudspeaker unit is assembled at one end, far away from the first connecting port, of the first sound cavity; and the air guide channel is arranged on one side of the connecting sound cavity and is communicated with the internal space and the external space of the connecting sound cavity. The utility model discloses technical scheme promotes tone quality to solve the technical problem that the tone quality effect is poor.

Description

Loudspeaker device

Technical Field

The utility model relates to a projecting apparatus field, in particular to speaker device.

Background

With the improvement of living standard of people, people put forward various requirements on the loudspeaker box such as miniaturization, lightness and thinness, high sound quality and the like. On the one hand, satisfying user's miniaturization, frivolous demand, the audio amplifier is made littleer and more, more and more thin, because the demand of miniaturization, frivolousization for sound cavity volume undersize in the speaker, thereby lead to tone quality not good.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a loudspeaker device aims at promoting tone quality to solve the technical problem that miniaturization, frivolous tone quality are poor.

In order to achieve the above object, the present invention provides a speaker device, which includes:

the loudspeaker comprises a first loudspeaker unit, the first loudspeaker unit comprises a first loudspeaker body and a first diaphragm, and the first diaphragm is arranged on the first loudspeaker body;

the loudspeaker comprises a sound cavity fixing part and a loudspeaker body, wherein the sound cavity fixing part comprises a first sound cavity and a connecting sound cavity, a first connecting port is arranged at one end of the first sound cavity and is communicated with the connecting sound cavity, the cross-sectional area of the first connecting port is larger than that of a first diaphragm contour area, and a first loudspeaker unit is assembled at one end, far away from the first connecting port, of the first sound cavity;

the air guide channel is arranged on one side of the connecting sound cavity and communicated with the inner space and the outer space of the connecting sound cavity.

Optionally, the speaker further includes a second speaker unit, where the second speaker unit includes a second speaker body and a second diaphragm, and the second diaphragm is disposed on the second speaker body;

the second loudspeaking unit is communicated with the connecting sound cavity.

Optionally, the sound cavity fixing part further comprises a second sound cavity, a second connector is arranged at one end of the second sound cavity, the second connector is communicated with the connecting sound cavity on one side of the first sound cavity, the cross-sectional area of the second connector is larger than that of the outline area of the second diaphragm, and the second speaker unit is assembled in the second sound cavity and deviates from one end of the second connector.

Optionally, the air guide channel extends out from the outer wall of the side, close to the first connecting port, of the connecting sound cavity and extends towards the direction of the communicating position of the inner space of the connecting sound cavity and the second connecting port;

the air guide channel is communicated with the sound cavity and the second sound cavity.

Optionally, the sound cavity fixing portion further includes a third sound cavity, the third sound cavity is disposed on one side of the air guide channel, a third connection port is disposed in the third sound cavity toward the connection of the second connection port, and the third connection port is communicated with the air guide channel toward the second connection port.

Optionally, the third connecting port cross-sectional area is smaller than the third sound cavity cross-sectional area.

Optionally, the cross-sectional area of the air guide channel towards one end of the second connecting port is less than half of the cross-sectional area of the second connecting port;

the cross-sectional area of the third connecting port is smaller than that of the end, facing the second connecting port, of the air guide channel.

Optionally, the sound cavity fixing portion further includes a fourth sound cavity, the fourth sound cavity is communicated with the connecting sound cavity, the fourth sound cavity is disposed between the first sound cavity and the second sound cavity, and the fourth sound cavity is located on one side of the air guide channel relative to the third sound cavity.

Optionally, the speaker device further comprises a bottom shell;

the bottom shell comprises a bottom shell body and at least three fixing bulges, the fixing bulges are arranged on one side of the bottom shell body facing the sound cavity fixing part, and the fixing bulges are arranged at intervals;

the sound cavity fixing part also comprises connecting parts and connecting pieces, the number of the connecting parts is the same as that of the fixing bulges, and the connecting parts are arranged on two sides of the outer wall of the first sound cavity and two sides of the outer wall of the second sound cavity;

the connecting part is matched with the fixed bulge in position, the connecting piece is an elastic piece, and the connecting part is connected with the fixed bulge through the connecting piece.

Optionally, the sound cavity fixing part further includes a supporting protrusion, the supporting protrusion is an elastic member, the number of the supporting protrusion is three, the supporting protrusion is respectively disposed on one side of the first sound cavity, the second sound cavity and the fourth sound cavity facing the bottom shell, the other end of the supporting protrusion is disposed on the bottom shell, and the supporting protrusion forms a three-point support.

In the technical scheme of the utility model, through setting up the speaker in first sound chamber, first sound chamber deviates from speaker one side and sets up first interface, first interface cross sectional area is greater than the regional area of first vibrating diaphragm orthographic projection, can smoothly flow when making the first vibrating diaphragm send the sound wave and pass through first interface when shaking, avoid the first vibrating diaphragm to send the sound wave and can not pass through in time and cause the jam when passing through first interface, and then improved the sound tone quality that the first vibrating diaphragm sent outside first sound chamber; meanwhile, the air guide channel is arranged in the connecting sound cavity, when the sound wave is transmitted to the connecting sound cavity during working, the sound wave is reflected and reverberated for many times in the connecting sound cavity, then is transmitted to the outer space of the fixed part of the sound cavity through the air guide channel, and then is transmitted into the human ear through air, the frequency of the high-frequency sound wave is reduced under the combined action of the first sound cavity, the connecting sound cavity and the air guide channel, the sound wave also has the sound quality effect of shocking and hollowing, and the sound quality is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an assembly structure of a sound cavity fixing portion and a bottom shell of an embodiment of a speaker device of the present invention;

fig. 2 is a schematic structural view of a visual angle sound cavity fixing portion according to an embodiment of the speaker device of the present invention;

fig. 3 is a schematic structural view of another visual angle sound cavity fixing portion according to an embodiment of the speaker device of the present invention;

fig. 4 is a schematic structural view of a planar view of a sound cavity fixing portion according to an embodiment of the speaker device of the present invention;

fig. 5 is a schematic view of a bottom case structure of the speaker device according to an embodiment of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model mainly provides a loudspeaker device, mainly used speaker, loudspeaker device includes the speaker, sound chamber fixed part and ventilation channel, through setting up the speaker in first sound chamber, first sound chamber deviates from speaker one side and sets up first interface, first interface cross sectional area is greater than first vibrating diaphragm orthographic projection area, can smoothly flow when making the first vibrating diaphragm send the sound wave when shaking through first interface, avoid the first vibrating diaphragm to send the sound wave and can not pass through in time and cause the jam when passing through first interface, and then improved the sound tone quality that the first vibrating diaphragm sent outside first sound chamber; meanwhile, the air guide channel is arranged in the connecting sound cavity, when the sound wave is transmitted to the connecting sound cavity during working, the sound wave is reflected and reverberated for many times in the connecting sound cavity, then is transmitted to the outer space of the fixed part of the sound cavity through the air guide channel, and then is transmitted into the human ear through air, the frequency of the high-frequency sound wave is reduced under the combined action of the first sound cavity, the connecting sound cavity and the air guide channel, the sound wave also has the sound quality effect of shocking and hollowing, and the sound quality is further improved.

The speaker device will be mainly described below.

Referring to fig. 1 to 5, in the embodiment of the present invention, a speaker device is mainly applied to sound quality optimization of a sound box, and the speaker device includes:

the loudspeaker comprises a first loudspeaker unit 1, wherein the first loudspeaker unit 1 comprises a first loudspeaker body 11 and a first diaphragm 12, and the first diaphragm 12 is arranged on the first loudspeaker body 11;

the sound cavity fixing part 3, the sound cavity fixing part 3 includes a first sound cavity 31 and a connecting sound cavity 33, one end of the first sound cavity 31 is provided with a first connection port 311, the first connection port 311 is communicated with the connecting sound cavity 33, the cross-sectional area of the first connection port 311 is larger than the area of the contour area of the first diaphragm 12, and the first speaker unit 1 is assembled at one end of the first sound cavity 31 far from the first connection port 311;

and the air guide channel 331 is arranged on one side of the connecting sound cavity 33, and the air guide channel 331 is communicated with the inner space and the outer space of the connecting sound cavity 33.

In this embodiment, the first speaker unit 1 includes a first speaker body 11 and a first diaphragm 12, the first speaker body 11 is used for fixing, receiving an electrical signal and generating mechanical vibration, the first diaphragm 12 is used for converting the mechanical vibration into sound, the first diaphragm 12 is fixedly connected to the first speaker body 11, and the mechanical vibration generated by the first speaker body 11 during playing music or viewing is transmitted to the first diaphragm 12 so as to convert the mechanical vibration into sound.

In order to separate the front sound wave and the opposite-phase sound wave emitted by the first speaker unit 1, the sound cavity fixing portion 3 includes a first sound cavity 31, where the first sound cavity 31 is mainly used to fix the first speaker unit 1 and increase the volume of the sound cavity of the first speaker unit 1, and one end of the first speaker body 11, which is away from the first diaphragm 12, is installed in one end of the first sound cavity 31, so that the sound emitted by the speaker is transmitted to the human ear through air; the sound cavity fixing part 3 further comprises a connecting sound cavity 33, the connecting sound cavity 33 is communicated with the first sound cavity 31, the communication position can be that the side of the first sound cavity 31 departing from the first loudspeaker unit 1 or the adjacent side, and the communication is not limited herein, and only the communication is required to be satisfied and a space is formed; for example, the communication position between the connection sound cavity 33 and the first sound cavity 31 is that the first sound cavity 31 is away from the side where the first speaker unit 1 is installed, when the first speaker unit 1 makes a sound, the front sound wave is transmitted from the first diaphragm 12 to the air, and when the sound is transmitted to the human ear through the air, the reverse sound wave is transmitted from the first diaphragm 12 to the inner space of the first sound cavity 31 toward the side of the first sound cavity 31, and then transmitted to the connection sound cavity 33 communicating with the first sound cavity 31 for multiple reflections.

Secondly, in order to ensure that the air flow in the first sound cavity 31 smoothly circulates and avoid the problem of low sound quality caused by the fact that the air flow is not smooth when the loudspeaker works, a first connecting port 311 is arranged at the joint of the first sound cavity 31 and the connecting sound cavity 33, and the cross-sectional area of the first connecting port 311 is larger than the area of the outline area of the first vibrating diaphragm 12, so that when the first vibrating diaphragm 12 vibrates, the air flow is driven to flow from the first sound cavity 31 to the connecting sound cavity 33 through the first connecting port 311; thereby improving the sound quality of the sound emitted from the first speaker unit 1.

In order to make the sound quality have a better effect, an air guide channel 331 is arranged on one side of the connection sound cavity 33, when the first diaphragm 12 works, sound waves are generated by the first diaphragm 12, enter the connection sound cavity 33 through the first sound cavity 31 and the first connection port 311, after being reflected and reverberated for many times in the connection sound cavity 33, are transmitted to the external space of the sound cavity fixing part 3 through the air guide channel 331 and then are transmitted into human ears through air, the frequency of high-frequency sound waves is reduced under the combined action of the first sound cavity 31, the connection sound cavity 33 and the air guide channel 331, and meanwhile, the sound waves also obtain a more shocking and hollow sound quality effect.

In this embodiment, the speaker is disposed in the first sound cavity 31, the first connection port 311 is disposed on a side of the first sound cavity 31 away from the speaker, and a cross-sectional area of the first connection port 311 is larger than an area of a contour area of the first diaphragm 12, so that sound waves emitted by the first diaphragm 12 during vibration can smoothly flow through the first connection port 311, and the situation that the sound waves emitted by the first diaphragm 12 cannot timely pass through the first connection port 311 to cause blockage is avoided, thereby improving sound quality of sound emitted by the first diaphragm 12 toward the outside of the first sound cavity 31; meanwhile, the air guide channel 331 is arranged in the connecting sound cavity 33, when the sound wave is transmitted to the connecting sound cavity 33 during operation, the sound wave is reflected and reverberated for many times in the connecting sound cavity 33, then is transmitted to the external space of the sound cavity fixing part 3 through the air guide channel 331, and then is transmitted to the human ear through the air, the frequency of the high-frequency sound wave is reduced under the combined action of the first sound cavity 31, the connecting sound cavity 33 and the air guide channel 331, the sound wave also has more shocking and hollow sound quality effect, and the quality of the sound is further improved.

Further, referring to fig. 1 and fig. 2, in another embodiment of the electronic device of the present application, the speaker further includes a second speaker unit 2, where the second speaker unit 2 includes a second speaker body 21 and a second diaphragm 22, and the second diaphragm 22 is disposed on the second speaker body 21; the second speaker unit 2 communicates with the connection sound chamber 33. The sound cavity fixing portion 3 further includes a second sound cavity 32, one end of the second sound cavity 32 is provided with a second connection port 321, the second connection port 321 is communicated with the side of the connection sound cavity 33 far away from the first sound cavity 31, the cross-sectional area of the second connection port 321 is larger than the area of the contour area of the second diaphragm 22, and the second speaker unit 2 is assembled at one end of the second sound cavity 32 deviated from the second connection port 321.

In order to make sound more three-dimensional and have better experience, the speaker device is further provided with a second speaker unit 2, the second speaker unit 2 comprises a second speaker body 21 and a second diaphragm 22, the second speaker body 21 is used for fixing, receiving an electric signal and generating mechanical vibration, the second diaphragm 22 is used for converting the mechanical vibration into sound, the first diaphragm is fixedly connected with the first speaker body, and the mechanical vibration generated by the second speaker body 21 is transmitted to the second diaphragm 22 during playing music or watching video so as to convert the mechanical vibration into sound.

In order to separate the front sound wave and the opposite-phase sound wave emitted by the second speaker unit 2, the sound cavity fixing part 3 includes a second sound cavity 32, where the second sound cavity 32 is mainly used to fix the second speaker unit 2 and increase the volume of the sound cavity of the second speaker unit 2, and one end of the second speaker body 21 away from the second diaphragm 22 is mounted in the second mounting opening, so that the sound emitted by the speaker is propagated to the human ear through air; in order to reduce the occupied space, the first sound cavity 31 and the second sound cavity 32 are commonly connected with the sound cavity 33, so that the purpose of saving the space is achieved; one side of the connecting sound cavity 33 is communicated with the second sound cavity 32, the communication position can be the side of the connecting sound cavity 33 close to the first sound cavity 31 or the side of the connecting sound cavity 33 away from the first sound cavity 31, and the communication is not limited to the above, and only the communication is required and a space is formed; for example, the side of the second sound cavity 32 communicating with the connecting sound cavity 33 is the side of the second sound cavity 32 departing from the first sound cavity 31, so as to form stereo sound better.

In order to ensure that the air flow in the second sound cavity 32 smoothly circulates and avoid the problem of low sound quality caused by the fact that sound waves generated by the second vibration mode do not smoothly flow when working, a second connecting port 321 is arranged at the joint of the second sound cavity 32 and the connecting sound cavity 33, and the cross-sectional area of the second connecting port 321 is larger than the area of the outline area of the second vibration film 22, so that the sound waves generated by the second vibration film 22 when working can smoothly flow when passing through the second connecting port 321, so that the sound waves enter the connecting sound cavity 33 to be reflected and reverberated for many times, then are transmitted to the external space of the sound cavity fixing part 3 through the air guide channel 331 and then are transmitted into the ears of a person through the air, thereby having the effects of shaking and enabling the hollow sound quality to become three-dimensional, and further enhancing the use experience of users.

Alternatively, referring to fig. 4, the air guide channel 331 extends from the outer wall of the sound cavity 33 near the first connection port 311, and extends toward the connection position where the inner space of the sound cavity 33 is communicated with the second connection port 321; the air guide passage 331 connects the sound cavity 33 and the second sound cavity 32. The sound cavity fixing part 3 further includes a third sound cavity 332, the third sound cavity 332 is disposed at one side of the air guide channel 331, a third connection port 3321 is disposed at a position of the third sound cavity 332 facing the second connection port 321, and the third connection port 3321 and the guide channel

In order to make the first diaphragm 12 and the second diaphragm 22 emit sound waves capable of reverberating in multiple reflections among the first sound cavity 31, the second sound cavity 32 and the connecting sound cavity 33, so that the sound waves are reflected multiple times to generate a more hollow sound quality effect, and the sound waves reflected multiple times are transmitted to the human ear to enable the human ear to be in the human ear, an air guide channel 331 is arranged at the position, close to the first connecting port 311, of the connecting sound cavity 33, the air guide channel 331 extends towards the second connecting port 321, so that the length of the air guide channel 331 is increased, the sound waves are required to be reflected after entering the air guide channel 331, and further the hollow effect of the sound quality is increased. In order to increase the volume of the sound cavity of the second sound cavity 32 and enhance the sound quality effect of the second speaker unit 2, the air guide channel 331 is provided with a third sound cavity 332 at one side of the air guide channel 331, a third connection port 3321 is provided at an opening of the third sound cavity 332, and the third connection port 3321 faces the second connection port 321, so that the second vibration mode emits sound waves to enter the third sound cavity 332, and the sound quality of the sound is improved by reflection in the third sound cavity 332.

Alternatively, referring to fig. 4, the cross-sectional area of the third connection port 3321 is smaller than the cross-sectional area of the third sound chamber 332. The air guide passage 331 has a sectional area toward the second connection port 321 smaller than half the sectional area of the second connection port 321; the third connection port 3321 has a sectional area smaller than that of the air guide passage 331 toward the second connection port 321. The sound cavity fixing portion 3 further includes a fourth sound cavity 34, the fourth sound cavity 34 is communicated with the connecting sound cavity 33, the fourth sound cavity 34 is disposed between the first sound cavity 31 and the second sound cavity 32, and the fourth sound cavity 34 is located on one side of the air guide channel 331 opposite to the third sound cavity 332.

Because the area of the end of the connecting sound cavity 33 occupied by the air guide channel 331, which is close to the first sound cavity 31, is small, the area of the end of the connecting sound cavity 33 occupied by the air guide channel 331, which is close to the second sound cavity 32, is large, and the third sound cavity 332 is added to the sound cavity fixing part 3 for balancing the volumes of the sound cavities of the first sound cavity 31 and the second sound cavity 32, so that the balance is achieved, and the sound quality effect is ensured. At the same time. In order to reflect the sound wave in the third sound cavity 332 for multiple times, the cross-sectional area of the third connection port 3321 is smaller than that of the third sound cavity 332, so that the sound wave is easy to enter and difficult to exit, thereby achieving the effect of multiple reflection.

In order to avoid that the sound waves emitted by the second diaphragm 22 are all propagated out of the sound cavity fixing part 3 through the air guide channel 331, the cross-sectional area of the end, facing the second connecting port 321, of the air guide channel 331 is smaller than half of the cross-sectional area of the second connecting port 321, so that the direct transmission of the sound waves emitted by the second diaphragm 22 is reduced, meanwhile, the area of the third sound cavity 332 is small, the cross-sectional area of the third connecting port 3321 is smaller than the cross-sectional area of the end, facing the second connecting port 321, of the air guide channel 331, and the problem that the volume of the sound cavity is insufficient is avoided because the sound waves all enter the third sound cavity 332.

In order to increase the volume of the sound cavity of the speaker device to improve the sound quality of the speaker device, the speaker device is further provided with a fourth sound cavity 34, the fourth sound cavity 34 is disposed on one side of the connection sound cavity 33, and the air guide channel 331 is disposed on one side of the third sound cavity 332 and is used for receiving the sound waves emitted from the first diaphragm 12 and the second diaphragm 22 so as to be repeatedly reflected in the third sound cavity 332, thereby obtaining the sound quality effect with shocking power and hollow space.

Further, referring to fig. 1 and 5, in another embodiment of the electronic device of the present application, the speaker device further includes a bottom case 4; the bottom shell 4 comprises a bottom shell body 41 and at least three fixing protrusions 42, the fixing protrusions 42 are arranged on one side of the bottom shell body 41 facing the sound cavity fixing part 3, and the fixing protrusions 42 are arranged at intervals; the sound cavity fixing part 3 further comprises connecting parts 35 and connecting pieces 36, the number of the connecting parts 35 is the same as that of the fixing protrusions 42, and the connecting parts 35 are arranged on two sides of the outer wall of the first sound cavity 31 and two sides of the outer wall of the second sound cavity 32; the connecting part 35 is matched with the fixing protrusion 42 in position, the connecting part 36 is an elastic part, and the connecting part 35 is connected with the fixing protrusion 42 through the connecting part 36. Sound chamber fixed part 3 still includes support protrusion 37, support protrusion 37 is the elastic component, support protrusion 37 is three, support protrusion 37 sets up respectively in first sound chamber 31, second sound chamber 32 and fourth sound chamber 34 towards drain pan 4 one side, the support protrusion 37 other end sets up on drain pan 4, and is a plurality of support protrusion 37 forms three point support.

The plurality of fixing protrusions 42 are disposed on the bottom plate and spaced from each other, and the connecting portion 35 is preferably disposed on two sides of the first sound cavity 31 and the second sound cavity 32, and the position of the connecting portion 35 is the same as the position of the fixing protrusion 42, so that the connecting portion 35 is connected with the fixing protrusion 42, the connecting portion 35 is connected with the fixing protrusion 42 by an elastic member or a magnetic suspension assembly, which is not limited specifically, and can be connected to eliminate the vibration transmitted from the sound cavity fixing portion 3 to the bottom case 4 and can be fixed, for example, the connecting portion 35 and the fixing protrusion 42 are elastic members, and when the vibration of the first speaker unit 1 or the second speaker unit 2 is transmitted to the sound cavity fixing portion 3, the elastic members respectively connect the connecting portion 35 with the fixing protrusion 42 to absorb the vibration transmitted from the sound cavity fixing portion 3 through elastic deformation of the elastic members, thereby achieving the purpose of shock absorption and avoiding the shock from being transmitted to the bottom shell 4.

In order to reduce the pressure of the connecting member 36 and avoid the excessive pressure of the connecting member 36 from aging in advance, the sound cavity fixing portion 3 is provided with a supporting protrusion 37 towards one side of the bottom shell 4 for auxiliary support, the number of the supporting protrusions 37 is preferably 3, and the supporting protrusions are respectively arranged at the first sound cavity 31, the second sound cavity 32 and the fourth sound cavity 34 towards one side of the bottom shell 4, so that the supporting protrusion 37 forms a triangular support in the first sound cavity 31, the second sound cavity 32 and the fourth sound cavity 34, thereby the support is more stable and reliable, the pressure of the connecting member 36 is reduced, the supporting protrusion 37 is preferably made of an elastic material, so that the vibration transmitted from the sound cavity fixing portion 3 is absorbed during elastic deformation, the vibration is reduced, the pressure of the connecting member 36 is reduced, and the sound quality effect and the service life of the connecting member 36 are ensured.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A speaker apparatus, characterized in that the speaker apparatus comprises:

the loudspeaker comprises a first loudspeaker unit, the first loudspeaker unit comprises a first loudspeaker body and a first diaphragm, and the first diaphragm is arranged on the first loudspeaker body;

the loudspeaker comprises a sound cavity fixing part and a loudspeaker body, wherein the sound cavity fixing part comprises a first sound cavity and a connecting sound cavity, a first connecting port is arranged at one end of the first sound cavity and is communicated with the connecting sound cavity, the cross-sectional area of the first connecting port is larger than that of a first diaphragm contour area, and a first loudspeaker unit is assembled at one end, far away from the first connecting port, of the first sound cavity;

the air guide channel is arranged on one side of the connecting sound cavity and communicated with the inner space and the outer space of the connecting sound cavity.

2. The speaker device according to claim 1, wherein the speaker further comprises a second speaker unit including a second speaker body and a second diaphragm, the second diaphragm being provided on the second speaker body;

the second loudspeaking unit is communicated with the connecting sound cavity.

3. The speaker device as claimed in claim 2, wherein the sound cavity fixing portion further comprises a second sound cavity, a second connection port is provided at one end of the second sound cavity, the second connection port communicates with the side of the connecting sound cavity away from the first sound cavity, the cross-sectional area of the second connection port is larger than the area of the contour area of the second diaphragm, and the second speaker unit is mounted at the end of the second sound cavity away from the second connection port.

4. The speaker device as claimed in claim 3, wherein the air guide channel extends from the outer wall of the sound-receiving chamber on the side near the first connection port, and extends in the direction of the connection between the inner space of the sound-receiving chamber and the second connection port;

the air guide channel is communicated with the sound cavity and the second sound cavity.

5. The speaker device as claimed in claim 4, wherein the sound chamber fixing portion further comprises a third sound chamber, the third sound chamber is disposed at a side of the air guide channel, the third sound chamber is provided with a third connection port toward a connection of the second connection port, and the third connection port communicates with the air guide channel toward the second connection port.

6. The speaker assembly of claim 5 wherein the third port cross-sectional area is less than the third port cross-sectional area.

7. The speaker device according to claim 6, wherein the air guide channel has a sectional area toward the second port connection port smaller than half the sectional area of the second port connection port;

the cross-sectional area of the third connecting port is smaller than that of the end, facing the second connecting port, of the air guide channel.

8. The speaker device as claimed in claim 7, wherein the cavity fixing portion further comprises a fourth cavity, the fourth cavity is connected to the connecting cavity, the fourth cavity is disposed between the first cavity and the second cavity, and the fourth cavity is located at a side of the air guide channel opposite to the third cavity.

9. The speaker apparatus of claim 8, wherein the speaker apparatus further comprises a bottom case;

the bottom shell comprises a bottom shell body and at least three fixing bulges, the fixing bulges are arranged on one side of the bottom shell body facing the sound cavity fixing part, and the fixing bulges are arranged at intervals;

the sound cavity fixing part also comprises connecting parts and connecting pieces, the number of the connecting parts is the same as that of the fixing bulges, and the connecting parts are arranged on two sides of the outer wall of the first sound cavity and two sides of the outer wall of the second sound cavity;

the connecting part is matched with the fixed bulge in position, the connecting piece is an elastic piece, and the connecting part is connected with the fixed bulge through the connecting piece.

10. The speaker device as claimed in claim 9, wherein the cavity fixing portion further includes three supporting protrusions, the supporting protrusions are elastic members, the supporting protrusions are respectively disposed on the first, second and fourth cavities toward the bottom case, the other ends of the supporting protrusions are disposed on the bottom case, and the plurality of supporting protrusions form a three-point support.

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