Speaker and electronic device

Abstract

Disclosed are a speaker and an electronic device. The speaker comprises a speaker housing, which has an accommodating chamber; a speaker body, which is housed within the accommodating chamber, where the accommodating chamber is separated by the speaker body into an anterior sound cavity and a posterior sound cavity, the anterior sound cavity being in communication with the exterior of the speaker housing; and a resonator, which is housed within the posterior sound cavity; the posterior sound cavity comprises at least one cavity portion and at least one port portion, a first side of the resonator is provided with a port portion, and the other side is provided with a cavity portion or an additional port portion. Compared with the prior art, the present invention can reduce the space occupied by the speaker, and also reduces flow losses and flow noise; further, by increasing the acoustic mass of the port portion to that of the resonator, any acoustic resonance arising from the interaction between the resonator and the port portion is above the operating frequency range of the speaker.

Description

A loudspeaker and an electronic device Technical Field

[0001] This invention relates to the field of electroacoustic conversion technology, and in particular to a loudspeaker and an electronic device. Background Technology

[0002] In the prior art, it is well known that multiple resonators are used to improve low-frequency efficiency and extend the low-frequency bandwidth of a loudspeaker. However, the challenge of applying these principles to compact portable devices is that the traditional structure of a cavity-coupled loudspeaker requires a considerable amount of physical space, and when the structure of a cavity-coupled loudspeaker is scaled down to the typical size of most portable devices, the cavity-coupled loudspeaker faces practical implementation challenges. Technical issues

[0003] The purpose of this invention is to provide a loudspeaker and an electronic device to solve the technical problems in the prior art. Technical solutions

[0004] In a first aspect, the present invention provides a loudspeaker, comprising:

[0005] The speaker housing has a receiving cavity;

[0006] The speaker body is housed within the receiving cavity, which is divided into a front acoustic cavity and a rear acoustic cavity by the speaker body. A sound-emitting hole is provided on the speaker housing, and the front acoustic cavity communicates with the outside of the speaker housing through the sound-emitting hole.

[0007] A resonator is housed within the rear acoustic cavity, which has at least one cavity portion and at least one port portion. The vibration directions of the loudspeaker body and the resonator both extend along a first direction, and the port portion extends along a second direction. A preset angle is formed between the first direction and the second direction. A port portion is correspondingly provided on a first side of the resonator, and a cavity portion or another port portion is correspondingly provided on the other side of the resonator.

[0008] In a loudspeaker as described above, preferably, the cavity portion includes a first cavity, a second cavity, and a third cavity; the port portion includes a first port and a second port; and the resonator includes a first resonator, a second resonator, and a third resonator, wherein:

[0009] The speaker body is positioned corresponding to the first cavity;

[0010] The first side of the first resonator is configured to correspond to the first cavity, and the second side of the first resonator is configured to correspond to the first port, and the first port is connected to the second cavity;

[0011] The first side of the second resonator is configured corresponding to the second cavity, and the second side of the second resonator is configured corresponding to the second port, which is connected to the third cavity;

[0012] The first side of the third resonator is disposed corresponding to the third cavity, and the second side of the third resonator is exposed to the outside of the speaker housing.

[0013] In a loudspeaker as described above, preferably, the projection of the sound-emitting aperture in the first direction falls on the first resonator.

[0014] In a loudspeaker as described above, preferably, the cavity portion includes a first cavity and a second cavity, the port portion includes a first port, a second port, and a third port, and the resonator includes a first resonator and a second resonator, wherein:

[0015] The speaker body is configured corresponding to the first cavity, and the first cavity is connected to the first port;

[0016] The first side of the first resonator is configured corresponding to the first port, and the second side of the first resonator is configured corresponding to the second port, and the second port is connected to the second cavity;

[0017] The first side of the second resonator is configured to correspond to the second cavity, and the second side of the second resonator is configured to correspond to the third port.

[0018] In a loudspeaker as described above, preferably, the cavity portion includes a first cavity and a second cavity, the port portion includes a first port, a second port, a third port, a fourth port, a fifth port, and a sixth port, and the resonator includes a first resonator, a second resonator, a third resonator, and a fourth resonator, wherein:

[0019] The speaker body is configured corresponding to the first cavity, the first cavity is connected to the first port and the second port respectively, the first port and the second port are symmetrically arranged on opposite sides of the third port, the third port is connected to the second cavity, the fourth port and the fifth port are symmetrically arranged on opposite sides of the second cavity, and the fifth port and the fourth port are both connected to the sixth port;

[0020] The first side of the first resonator is configured corresponding to the first port, and the second side of the first resonator is configured corresponding to the third port;

[0021] The first side of the second resonator is configured corresponding to the second port, and the second side of the second resonator is configured corresponding to the third port;

[0022] The first side of the third resonator is configured corresponding to the second cavity, and the second side of the third resonator is configured corresponding to the fourth port;

[0023] The first side of the fourth resonator is configured to correspond to the second cavity, and the second side of the fourth resonator is configured to correspond to the fifth port.

[0024] In a loudspeaker as described above, preferably, the axes of the first cavity, the third port, the second cavity, and the sixth port coincide.

[0025] In the speaker described above, preferably, the preset included angle is 90°.

[0026] In a loudspeaker as described above, preferably, the length of the port portion in the first direction is less than the length of the port portion in the second direction.

[0027] In a loudspeaker as described above, preferably, arc-shaped guide surfaces are protruded on two inner surfaces on opposite sides of the port portion to form a venturi tube structure port portion.

[0028] In a second aspect, the present invention provides an electronic device including the aforementioned speaker. Beneficial effects

[0029] Compared with the prior art, the present invention provides a port portion on at least one side of the resonator. The port portion is a long and narrow slot structure, and the resonator is disposed on one side surface of the port portion. The space between the resonator and the corresponding other side surface of the port portion is smaller. On the one hand, it can reduce the space occupied by the speaker, making it more suitable for compact and portable devices, and allowing for more practical design parameters for the port portion and the resonator (larger port area, smaller resonator acoustic mass). On the other hand, it can reduce flow loss and reduce flow noise. Furthermore, it increases the acoustic mass of the port portion to the acoustic mass of the resonator. Any acoustic resonance caused by the interaction between the resonator and the port portion is above the operating frequency range of the speaker, thereby improving the high-frequency reproduction of the speaker and reducing the intermodulation distortion of the speaker, ultimately improving the sound quality of the speaker in electronic devices. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the structure of the loudspeaker provided in Embodiment 1 of the present invention;

[0031] Figure 2 is a structural schematic diagram of the loudspeaker provided in Embodiment 2 of the present invention;

[0032] Figure 3 is a structural schematic diagram of the loudspeaker provided in Embodiment 3 of the present invention;

[0033] Figure 4 is a schematic diagram of the structure of the port portion with an arc-shaped guide surface provided in an embodiment of the present invention;

[0034] Figure 5 is a schematic diagram of the structure of a loudspeaker with an arc-shaped guiding surface provided in an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached drawings: 1-Speaker housing, 2-Speaker body, 3-Front acoustic cavity, 4-Rear acoustic cavity, 5-First cavity, 6-Second cavity, 7-Third cavity, 8-First port, 9-Second port, 10-Third port, 11-Fourth port, 12-Fifth port, 13-Sixth port, 14-First resonator, 15-Second resonator, 16-Third resonator, 17-Fourth resonator, 18-Speaker hole, 19-Arc-shaped guide surface;

[0036] D1 - First direction;

[0037] D2 - Second direction. The best embodiment of the present invention

[0038] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] As shown in Figures 1 to 5, an embodiment of the present invention provides a loudspeaker, including a loudspeaker housing 1, a loudspeaker body 2 disposed within the loudspeaker housing 1, and a resonator, wherein:

[0040] The speaker housing 1 has a receiving cavity for accommodating the speaker body 2 and at least one resonator.

[0041] The loudspeaker body 2 is housed within the receiving cavity. The loudspeaker body 2 is used to vibrate and produce sound. The receiving cavity is divided into a front acoustic cavity 3 and a rear acoustic cavity 4 by the loudspeaker body 2. A sound-emitting hole 18 is provided on the loudspeaker housing 1. The front acoustic cavity 3 is connected to the outside of the loudspeaker housing 1 through the sound-emitting hole 18. In a feasible embodiment, the loudspeaker body 2 may include structures such as a diaphragm, a voice coil, and a magnetic circuit unit. Under the action of the magnetic circuit unit, the voice coil with a changing current is subjected to different magnitudes of Ampere force and vibrates. The vibration of the voice coil drives the diaphragm to vibrate, and the vibration of the diaphragm drives the surrounding air to vibrate, thereby producing sound.

[0042] The resonator is housed within the rear acoustic cavity 4, positioning it along the propagation path of the sound wave. The resonator can be made of any material with suitable mechanical properties. In the embodiments provided in this application, the resonator is a passive resonator.

[0043] In the embodiments proposed in this application, the number of resonators can be multiple, and the specific number can be determined according to the actual situation, which is not limited here. The rear acoustic cavity 4 has at least one cavity part and at least one port part. The vibration direction of the speaker body 2 and the resonator both extend along the first direction D1. The resonator is coupled into the rear acoustic cavity 4 and provides acoustic impedance in the rear acoustic cavity 4. This acoustic impedance serves as impedance matching for the plane sound wave propagating along the rear acoustic cavity 4 to attenuate the high mode in the axial direction of the rear acoustic cavity 4. Furthermore, the resonator is designed to concentrate this attenuation effect to the high frequency.

[0044] The port portion extends along the second direction D2, and a preset angle is formed between the first direction D1 and the second direction D2. The value range of the preset angle can be determined according to the actual situation and is not limited here. Preferably, the preset angle is 90°. In the embodiment provided in this application, the vibration direction of the speaker body 2 is defined as the first direction D1, and the normal direction of the vibration direction of the speaker body 2 is defined as the second direction D2. The first direction D1 and the second direction D2 are perpendicular to each other. The port portion is a long and narrow groove structure. The length of the port portion in the first direction D1 is much smaller than the length in the second direction D2. The port portion extends along the normal direction of the speaker body 2.

[0045] In the embodiments provided in this application, a port portion is correspondingly provided on the first side of the resonator, and a cavity portion or another port portion is correspondingly provided on the other side of the resonator. The resonator is disposed on one side surface of the port portion, and the space between the resonator and the corresponding other side surface of the port portion is small. On the one hand, this can reduce the space occupied by the speaker, making it better suited for compact and portable devices, and allowing for more practical design parameters for the port portion and the resonator (larger port area, smaller resonator acoustic mass). On the other hand, it can reduce flow loss and reduce flow noise. Furthermore, it increases the acoustic mass of the port portion to the acoustic mass of the resonator, so that any acoustic resonance caused by the interaction between the resonator and the port portion is above the operating frequency range of the speaker, thereby improving the high-frequency reproduction of the speaker and reducing the intermodulation distortion of the speaker, ultimately improving the sound quality of the speaker in electronic devices.

[0046] Furthermore, referring to Figures 4 and 5, two inner surfaces on opposite sides of the port portion are provided with arc-shaped guide surfaces 19 to form a venturi tube structure port portion. The interior of the port portion is a cavity structure with a venturi-like shape. Straight segments are connected to opposite sides of the arc-shaped guide surfaces 19. The arc-shaped guide surfaces 19 are composed of curved segments with gradually increasing diameter and curved segments with gradually decreasing diameter, so that the sound waves can reduce flow noise and distortion during transmission.

[0047] The following examples illustrate the structure of the speaker of the present invention. Those skilled in the art will recognize that more variations can be designed based on the following examples, all of which fall within the protection scope of the present invention. Example

[0048] Referring to Figure 1, in this embodiment, the cavity portion includes a first cavity 5, a second cavity 6, and a third cavity 7. The shapes and sizes of the first cavity 5, the second cavity 6, and the third cavity 7 can be the same or different from each other, which is not limited here. The port portion includes a first port 8 and a second port 9. The shapes and sizes of the first port 8 and the second port 9 can be the same or different, which is not limited here. Along the first direction D1, the length of each cavity in the cavity portion is greater than the length of each port in the port portion. The resonator includes a first resonator 14, a second resonator 15, and a third resonator 16. The first resonator 14, the second resonator 15, and the third resonator 16 are all passive resonators, wherein:

[0049] The speaker body 2 is positioned corresponding to the first cavity 5, and the front acoustic cavity 3 and the first cavity 5 are located on opposite sides of the speaker body 2.

[0050] The first side of the first resonator 14 is disposed corresponding to the first cavity 5, and the second side of the first resonator 14 is disposed corresponding to the first port 8. The first port 8 is a long and narrow slot structure that extends along the second direction D2. The first resonator 14 is disposed on one side wall of the first port 8. The vibration direction of the first resonator 14 is perpendicular to the second direction D2. The distance between the other side wall of the first port 8 and the first resonator 14 is small, which increases the acoustic quality of the first port 8 to that of the first resonator 14. Any acoustic resonance caused by the interaction between the first resonator 14 and the first port 8 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the first port 8 and the first resonator 14. The first port 8 can have a larger port area, while the first resonator 14 can have a smaller acoustic quality.

[0051] The first resonator 14 occupies only part of the wall of the first port 8. In the second direction D2, the end of the first port 8 away from the first resonator 14 is connected to the second cavity 6. The second cavity 6 is located on one side of the speaker body 2, so in the first direction D1, the space occupied by the speaker can be further compressed.

[0052] The first side of the second resonator 15 is disposed corresponding to the second cavity 6, and the second side of the second resonator 15 is disposed corresponding to the second port 9. The second port 9 is a long and narrow slot structure that extends along the second direction D2. The second resonator 15 is disposed on one side wall of the second port 9, and the vibration direction of the second resonator 15 is perpendicular to the second direction D2. The distance between the other side wall of the second port 9 and the second resonator 15 is small, which increases the acoustic quality of the second port 9 to that of the second resonator 15. Any acoustic resonance caused by the interaction between the second resonator 15 and the second port 9 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the second port 9 and the second resonator 15. The second port 9 can have a larger port area, while the second resonator 15 can have a smaller acoustic quality.

[0053] The second resonator 15 occupies only part of the wall of the second port 9. In the second direction D2, the end of the second port 9 away from the second resonator 15 is connected to the third cavity 7. The third cavity 7 is located on one side of the second cavity 6, so in the first direction D1, the space occupied by the speaker can be further compressed.

[0054] The first side of the third resonator 16 is disposed corresponding to the third cavity 7, and the second side of the third resonator 16 is exposed to the outside of the speaker housing 1.

[0055] By arranging the first port 8 and the second port 9, the extra space between the first resonator 14 and the first port 8, and the extra space between the second resonator 15 and the second port 9 are minimized. Furthermore, the end of the first port 8 is connected to the second cavity 6, and the end of the second port 9 is connected to the third cavity 7. The cavity volume in which the sound wave propagates in the rear acoustic cavity 4 changes periodically. The acoustic inductance of the first port 8 and the second port 9 increases the mass of the first resonator 14 and the second resonator 15, thereby reducing the moving mass of the first resonator 14 and the second resonator 15.

[0056] In this embodiment, the projection of the speaker hole 18 onto the first direction D1 falls on the first resonator 14. The cross-sectional area of ​​the speaker hole 18 is smaller than that of the first resonator 14. The composite film of the first resonator 14 has a wider coverage area, and the acoustic impedance provided by the composite film has a stronger attenuation effect on the high mode in the axial direction of the front acoustic cavity 3. Example

[0057] Referring to Figure 2, in this embodiment, the cavity portion includes a first cavity 5 and a second cavity 6. The shape and size of the first cavity 5 and the second cavity 6 can be the same or different from each other, which is not limited here. The port portion includes a first port 8, a second port 9, and a third port 10. The shape and size of the first port 8, the second port 9, and the third port 10 can be the same or different, which is not limited here. Along the first direction D1, the length of each cavity in the cavity portion is greater than the length of each port in the port portion. The resonator includes a first resonator 14 and a second resonator 15. Both the first resonator 14 and the second resonator 15 are passive resonators, wherein:

[0058] The speaker body 2 is positioned corresponding to the first cavity 5. The front acoustic cavity 3 and the first cavity 5 are located on opposite sides of the speaker body 2. The first cavity 5 is connected to the first port 8. The first port 8 is located on the side end of the first cavity 5 along the second direction D2. In the first direction D1, the projections of the first port 8 and the first cavity 5 do not overlap, thereby compressing the space occupied by the speaker in the first direction D1, making it more suitable for compact electronic devices.

[0059] The first side of the first resonator 14 is set corresponding to the first port 8, and the second side of the first resonator 14 is set corresponding to the second port 9. Both the first port 8 and the second slot are elongated slot structures that extend along the second direction D2. The first resonator 14 is set on the wall shared by the first port 8 and the second port 9. The vibration direction of the first resonator 14 is perpendicular to the second direction D2. The distance between the other side wall of the first port 8 and the second port 9 and the first resonator 14 is small, which increases the acoustic quality of the first port 8 and the second port 9 to the acoustic quality of the first resonator 14. Any acoustic resonance caused by the interaction between the first resonator 14 and the first port 8 and the second port 9 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the first port 8, the second port 9 and the first resonator 14. The first port 8 and the second port 9 can have larger port areas, and the first resonator 14 can have a smaller acoustic quality.

[0060] The first resonator 14 occupies only part of the wall of the first port 8 and the second port 9. In the second direction D2, the end of the second port 9 away from the first resonator 14 is connected to the second cavity 6. The second cavity 6 is located on one side of the first cavity 5, so in the first direction D1, the space occupied by the speaker can be further compressed.

[0061] The first side of the second resonator 15 is disposed corresponding to the second cavity 6, and the second side of the second resonator 15 is disposed corresponding to the third port 10. The third port 10 is a long and narrow slot structure that extends along the second direction D2. The second resonator 15 is disposed on one side wall of the third port 10, and the vibration direction of the second resonator 15 is perpendicular to the second direction D2. The distance between the other side wall of the third port 10 and the second resonator 15 is small, which increases the acoustic quality of the third port 10 to that of the second resonator 15. Any acoustic resonance caused by the interaction between the second resonator 15 and the third port 10 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the third port 10 and the second resonator 15. The third port 10 can have a larger port area, while the second resonator 15 can have a smaller acoustic quality.

[0062] By arranging the first port 8, the second port 9, and the third port 10, the extra space between the first resonator 14 and the first port 8 and the second port 9, and the extra space between the second resonator 15 and the third port 10 are minimized. The end of the first port 8 is connected to the first cavity 5, the end of the second port 9 is connected to the second cavity 6, and the end of the third port 10 is connected to the outside. The cavity volume in which the sound wave propagates in the rear acoustic cavity 4 changes periodically. The acoustic inductance of the first port 8, the second port 9, and the third port 10 increases the mass of the first resonator 14 and the second resonator 15, thereby reducing the moving mass of the first resonator 14 and the second resonator 15. Example

[0063] Referring to FIG3, in this embodiment, the cavity portion includes a first cavity 5 and a second cavity 6, the port portion includes a first port 8, a second port 9, a third port 10, a fourth port 11, a fifth port 12, and a sixth port 13, and the resonators include a first resonator 14, a second resonator 15, a third resonator 16, and a fourth resonator 17, wherein:

[0064] The speaker body 2 is positioned corresponding to the first cavity 5. The first cavity 5 is connected to the first port 8 and the second port 9 respectively. Along the second direction D2, the first port 8, the second port 9 and the third port 10 are all located at the side end of the first cavity 5. The first port 8 and the second port 9 are symmetrically arranged on opposite sides of the third port 10. The third port 10 is connected to the second cavity 6. Along the first direction D1, the fourth port 11 and the fifth port 12 are symmetrically arranged on opposite sides of the second cavity 6. The fifth port 12 and the fourth port 11 are both connected to the sixth port 13. The axes of the first cavity 5, the third port 10, the second cavity 6 and the sixth port 13 coincide to increase symmetry and reduce swaying motion, which helps to reduce flow loss and reduce flow noise.

[0065] The first side of the first resonator 14 is disposed corresponding to the first port 8, and the second side of the first resonator 14 is disposed corresponding to the third port 10. Both the first port 8 and the third port 10 are elongated slot structures that extend along the second direction D2. The first resonator 14 is disposed on the wall shared by the first port 8 and the third port 10. The vibration direction of the first resonator 14 is perpendicular to the second direction D2. The distance between the other side wall of the first port 8 and the third port 10 and the first resonator 14 is small, which increases the acoustic quality of the first port 8 and the third port 10 to the acoustic quality of the first resonator 14. Any acoustic resonance caused by the interaction between the first resonator 14 and the first port 8 and the third port 10 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the first port 8, the third port 10 and the first resonator 14. The first port 8 and the third port 10 can have larger port areas, while the first resonator 14 can have a smaller acoustic quality.

[0066] The first side of the second resonator 15 is set corresponding to the second port 9, and the second side of the second resonator 15 is set corresponding to the third port 10. Both the second port 9 and the third port 10 are elongated slot structures that extend along the second direction D2. The second resonator 15 is set on the wall shared by the second port 9 and the third port 10. The vibration direction of the second resonator 15 is perpendicular to the second direction D2. The distance between the other side wall of the second port 9 and the third port 10 and the second resonator 15 is small, which increases the acoustic quality of the second port 9 and the third port 10 to the acoustic quality of the first resonator 14. Any acoustic resonance caused by the interaction between the second resonator 15 and the second port 9 and the third port 10 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the second port 9, the third port 10 and the second resonator 15. The second port 9 and the third port 10 can have a larger port area, while the second resonator 14 can have a smaller acoustic quality.

[0067] The first side of the third resonator 16 is positioned corresponding to the second cavity 6, and the second side of the third resonator 16 is positioned corresponding to the fourth port 11. The fourth port 11 is a long and narrow slot structure that extends along the second direction D2. The third resonator 16 is located on one side wall of the fourth port 11, and the vibration direction of the third resonator 16 is perpendicular to the second direction D2. The distance between the other side wall of the fourth port 11 and the third resonator 16 is small, which increases the acoustic quality of the fourth port 11 to that of the third resonator 16. Any acoustic resonance caused by the interaction between the third resonator 16 and the fourth port 11 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the fourth port 11 and the third resonator 16. The fourth port 11 can have a larger port area, while the third resonator 16 can have a smaller acoustic quality.

[0068] The first side of the fourth resonator 17 is positioned corresponding to the second cavity 6, and the second side of the fourth resonator 17 is positioned corresponding to the fifth port 12. The fifth port 12 is a long and narrow slot structure that extends along the second direction D2. The fourth resonator 17 is located on one side wall of the fifth port 12, and the vibration direction of the fourth resonator 17 is perpendicular to the second direction D2. The distance between the other side wall of the fifth port 12 and the fourth resonator 17 is small, which increases the acoustic quality of the fifth port 12 to that of the fourth resonator 17. Any acoustic resonance caused by the interaction between the fourth resonator 17 and the fifth port 12 is above the operating frequency range of the loudspeaker. At the same time, more practical design parameters are used for the fifth port 12 and the fourth resonator 17. The fifth port 12 can have a larger port area, while the fourth resonator 17 can have a smaller acoustic quality.

[0069] In this embodiment, by symmetrically arranging the first resonator 14 and the second resonator 15 along the first direction D1, and the third resonator 16 and the fourth resonator 17 along the first direction D1, a pair of resonators can be mechanically connected to increase symmetry and reduce swaying motion, thereby eliminating equipment vibration caused by resonator recoil.

[0070] Based on the above embodiments, this application also provides an electronic device, including but not limited to mobile or fixed terminal devices with speakers such as mobile phones, tablets, laptops, wearable devices, virtual reality devices, Bluetooth headsets, or vehicle-mounted devices.

[0071] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that, include: The speaker housing has a receiving cavity; The speaker body is housed within the receiving cavity, which is divided into a front acoustic cavity and a rear acoustic cavity by the speaker body. A sound-emitting hole is provided on the speaker housing, and the front acoustic cavity communicates with the outside of the speaker housing through the sound-emitting hole. A resonator is housed within the rear acoustic cavity, which has at least one cavity portion and at least one port portion. The vibration directions of the loudspeaker body and the resonator both extend along a first direction, and the port portion extends along a second direction. A preset angle is formed between the first direction and the second direction. A port portion is correspondingly provided on a first side of the resonator, and a cavity portion or another port portion is correspondingly provided on the other side of the resonator.

2. The loudspeaker according to claim 1, characterized in that, The cavity portion includes a first cavity, a second cavity, and a third cavity; the port portion includes a first port and a second port; and the resonator includes a first resonator, a second resonator, and a third resonator, wherein: The speaker body is positioned corresponding to the first cavity; The first side of the first resonator is configured to correspond to the first cavity, and the second side of the first resonator is configured to correspond to the first port, and the first port is connected to the second cavity; The first side of the second resonator is configured corresponding to the second cavity, and the second side of the second resonator is configured corresponding to the second port, which is connected to the third cavity; The first side of the third resonator is disposed corresponding to the third cavity, and the second side of the third resonator is exposed to the outside of the speaker housing.

3. The loudspeaker according to claim 1, characterized in that, The projection of the speaker aperture in the first direction falls on the first resonator.

4. The loudspeaker according to claim 1, characterized in that, The cavity portion includes a first cavity and a second cavity, the port portion includes a first port, a second port, and a third port, and the resonator includes a first resonator and a second resonator, wherein: The speaker body is configured corresponding to the first cavity, and the first cavity is connected to the first port; The first side of the first resonator is configured corresponding to the first port, and the second side of the first resonator is configured corresponding to the second port, and the second port is connected to the second cavity; The first side of the second resonator is configured to correspond to the second cavity, and the second side of the second resonator is configured to correspond to the third port.

5. The loudspeaker according to claim 1, characterized in that, The cavity portion includes a first cavity and a second cavity; the port portion includes a first port, a second port, a third port, a fourth port, a fifth port, and a sixth port; the resonator includes a first resonator, a second resonator, a third resonator, and a fourth resonator, wherein: The speaker body is configured corresponding to the first cavity, the first cavity is connected to the first port and the second port respectively, the first port and the second port are symmetrically arranged on opposite sides of the third port, the third port is connected to the second cavity, the fourth port and the fifth port are symmetrically arranged on opposite sides of the second cavity, and the fifth port and the fourth port are both connected to the sixth port; The first side of the first resonator is configured corresponding to the first port, and the second side of the first resonator is configured corresponding to the third port; The first side of the second resonator is configured corresponding to the second port, and the second side of the second resonator is configured corresponding to the third port; The first side of the third resonator is configured corresponding to the second cavity, and the second side of the third resonator is configured corresponding to the fourth port; The first side of the fourth resonator is configured to correspond to the second cavity, and the second side of the fourth resonator is configured to correspond to the fifth port.

6. The loudspeaker according to claim 5, characterized in that, The axes of the first cavity, the third port, the second cavity, and the sixth port coincide.

7. The loudspeaker according to claim 1, characterized in that, The preset included angle is 90°.

8. The loudspeaker according to claim 1, characterized in that, The length of the port portion in the first direction is less than the length of the port portion in the second direction.

9. The loudspeaker according to claim 1, characterized in that, The two inner surfaces on opposite sides of the port section are provided with arc-shaped guide surfaces to form the port section of the Venturi tube structure.

10. An electronic device, characterized in that: Includes the loudspeaker as described in any one of claims 1-9.

Images