Sound box and electronic equipment

Abstract

The embodiment of the invention provides a sound box and electronic equipment, and relates to the technical field of sound boxes. The sound box comprises a box body, the box body comprises a first sound outlet hole, a first sound cavity, a through hole, a second sound cavity and a second sound outlet hole, the first sound outlet hole is communicated with the first sound cavity, and the second sound outlet hole is communicated with the second sound cavity; the loudspeaker is mounted in the through hole and separates the first sound cavity from the second sound cavity; the first resonance part is arranged in one of the first sound cavity and the second sound cavity, so that one of the first sound cavity and the second sound cavity has a first first-order sound mode frequency, and the first resonance part is of an acoustic superstructure; and the second resonance part is arranged in the other one of the first sound cavity and the second sound cavity, so that the other one of the first sound cavity and the second sound cavity has a second first-order sound mode frequency different from the first first-order sound mode frequency. According to the sound box and the electronic equipment, the low-frequency diving depth of the sound box can be reduced, and the effective frequency band of the sound box is widened.

Description

Technical Field

[0001] The present application relates to the technical field of speakers, and in particular to a speaker and an electronic device. Background Art

[0002] The low-frequency components of the speakers can provide a fuller, deeper and more powerful bass effect, adding dynamism and momentum to the music, allowing the listener to feel the power and charm of the music. Therefore, bass plays an extremely critical role in improving the sound quality of the speakers.

[0003] Related art provides a speaker whose rear sound cavity has a bass reflex tube, a passive radiator, or a labyrinth cabinet, which can enhance the bass enhancement effect of the speaker. However, the low-frequency diving capability of the speaker is limited.

[0004] Related art also provides a speaker that is a traditional dual-resonance bandpass speaker. Both the front and rear sound chambers of the speaker have a ported tube, a passive radiator, or a labyrinth cabinet to reduce the speaker's low-frequency depth. However, the speaker's effective frequency band is narrow, resulting in poor acoustic performance. Summary of the Invention

[0005] The embodiments of the present application provide a speaker and an electronic device, which are used to reduce the low-frequency diving depth of the speaker, widen the effective frequency band of the speaker, and thus improve the acoustic performance of the speaker.

[0006] In a first aspect, an embodiment of the present application provides a speaker, comprising:

[0007] The box body includes a first sound outlet, a first sound cavity, a through hole, a second sound cavity and a second sound outlet, the through hole connecting the first sound cavity and the second sound cavity, the first sound outlet hole connecting the first sound cavity and the outside of the box body, and the second sound outlet hole connecting the second sound cavity and the outside of the box body;

[0008] A speaker is installed in the through hole and blocks the first sound cavity and the second sound cavity;

[0009] a first resonant element, the first resonant element being disposed in one of the first sound cavity and the second sound cavity so that one of the first sound cavity and the second sound cavity has a first-order acoustic modal frequency, the first resonant element being an acoustic superstructure;

[0010] The second resonant element is disposed in the other of the first sound cavity and the second sound cavity so that the other of the first sound cavity and the second sound cavity has a second first-order acoustic modal frequency, and the second first-order acoustic modal frequency is different from the first first-order acoustic modal frequency.

[0011] In some possible implementations, the second first-order acoustic mode frequency is lower than the first first-order acoustic mode frequency.

[0012] In some possible implementations, the second resonant element is an acoustic superstructure, a reflex tube, or a passive radiator.

[0013] In some possible implementations, the second resonant member includes a plurality of acoustic channels, the acoustic channels extending in a direction perpendicular to a height direction of the speaker, and the acoustic channels are located on the same side of the speaker;

[0014] Along the height direction of the speaker, the acoustic channels are arranged in sequence, and the acoustic channels include a first end and a second end arranged opposite to each other along the extension direction of the acoustic channels. The first end and the second end of one of the two adjacent acoustic channels are arranged in opposite directions relative to the other. The first end of one of the two adjacent acoustic channels is connected to the second end of the other. The acoustic channel closest to the speaker is used to receive the sound emitted by the speaker, and the acoustic channel farthest from the speaker is connected to the second sound outlet.

[0015] In some possible implementations, the first resonant member has a sound propagation channel, the sound propagation channel includes a plurality of sub-channels, the sub-channels extend in a direction perpendicular to a height direction of the sound box, and the sub-channels are arranged on a peripheral side of the speaker;

[0016] The sub-channels are arranged in sequence along a direction perpendicular to the height direction of the speaker. The sub-channels include a third end and a fourth end arranged opposite to each other along the extension direction of the sub-channel. The third end and the fourth end of one of the two adjacent sub-channels are arranged in opposite directions relative to the other. The third end of one of the two adjacent sub-channels is connected to the fourth end of the other. The sub-channel closest to the speaker is used to receive the sound emitted by the speaker, and the sub-channel farthest from the speaker is connected to the first sound outlet.

[0017] In some possible implementations, the lengths of the sub-channels increase in sequence from the sub-channel closest to the speaker to the sub-channel farthest from the speaker.

[0018] In some possible implementations, the number of first sound outlets is more than two, the number of sound propagation channels is more than two, each sound propagation channel is arranged around the periphery of the speaker, each sound propagation channel is blocked from each other, and each sound propagation channel is connected to each first sound outlet one-to-one.

[0019] In some possible implementations, there are two or more first sound outlet holes, and there are two or more first resonant members. Each first resonant member is disposed around a circumference of the speaker. A sound outlet channel is defined between two adjacent first resonant members. One end of each sound outlet channel is connected to a first sound outlet hole in a one-to-one correspondence, and the other end of each sound outlet channel is configured to receive sound emitted by the speaker.

[0020] The first resonator has two sound propagation channels, each of which includes a plurality of sub-channels. The sub-channels extend in a direction perpendicular to the height direction of the sound box, and the sub-channels are arranged on the peripheral side of the speaker.

[0021] The sub-channels are arranged in sequence along a direction perpendicular to the height direction of the speaker, and the sub-channels include third ends and fourth ends arranged opposite to each other along the extension direction of the sub-channels. The third end and fourth end of one of two adjacent sub-channels are arranged in opposite directions relative to the other. The third end of one of the two adjacent sub-channels is connected to the fourth end of the other. The sub-channel closest to the speaker in each sound propagation channel is connected to the sound output channel closest to it, and the sub-channels farthest from the speaker in each sound propagation channel are connected to each other.

[0022] The lengths of the sub-channels increase in sequence from the sub-channel closest to the speaker to the sub-channel farthest from the speaker.

[0023] In some possible implementations, the speaker further includes at least two first resonant element groups, and the first resonant element groups are sequentially spaced apart along a direction perpendicular to a height direction of the speaker;

[0024] The first resonant element group includes at least two first resonant elements, and the first resonant elements of each first resonant element group are arranged at intervals and wound around the circumference of the speaker;

[0025] Along the direction from the first resonant component group closest to the speaker to the first resonant component group farthest from the speaker, the lengths of the first resonant components increase in sequence.

[0026] In a second aspect, an embodiment of the present application provides an electronic device, comprising a device body and any speaker provided in the first aspect connected to the device body.

[0027] The speaker and electronic device provided by the embodiments of the present application are characterized in that the first resonant member of the speaker is arranged in one of the first sound cavity and the second sound cavity, and the second resonant member is arranged in the other of the first sound cavity and the second sound cavity, and the first sound cavity and the second sound cavity both form a resonant cavity, and the acoustic modes of the two resonant cavities can be coupled with the structural mode of the speaker, thereby improving the bass enhancement effect of the speaker. At the same time, by setting two resonant cavities with different first-order acoustic mode frequencies, the low-frequency dive depth of the speaker can be reduced. In addition, the first resonant member is an acoustic superstructure, and the acoustic superstructure can increase the acoustic mode density of the first sound cavity, that is, the acoustic superstructure can increase the number of acoustic modes within the unit frequency interval of the first sound cavity, so that the first sound cavity has more orders of acoustic mode frequencies that can work, thereby further reducing the low-frequency dive depth of the speaker and widening the effective frequency band of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0029] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0030] Figure 2 for Figure 1 Stereoscopic view of the center speaker;

[0031] Figure 3 for Figure 1 Main view of the center speaker;

[0032] Figure 4 for Figure 3 AA cross-sectional diagram in;

[0033] Figure 5 for Figure 3 BB cross-section diagram in;

[0034] Figure 6 A schematic cross-sectional view of a second speaker provided in an embodiment of the present application;

[0035] Figure 7 A schematic cross-sectional view of a third speaker provided in an embodiment of the present application;

[0036] Figure 8 A schematic cross-sectional view of a fourth speaker provided in an embodiment of the present application;

[0037] Figure 9 A diagram showing the positional relationship between the first resonant element and the loudspeaker in the fifth sound box provided in an embodiment of the present application;

[0038] Figure 10 A diagram showing the positional relationship between the first resonant element and the loudspeaker in the sixth sound box provided in an embodiment of the present application;

[0039] Figure 11 A schematic structural diagram of the first resonant element in the seventh speaker provided in an embodiment of the present application;

[0040] Figure 12 A schematic structural diagram of a first resonant element in an eighth speaker provided in an embodiment of the present application;

[0041] Figure 13 A schematic structural diagram of a first resonant element in a ninth speaker provided in an embodiment of the present application;

[0042] Figure 14 A schematic cross-sectional view of a tenth speaker structure provided in an embodiment of the present application;

[0043] Figure 15A schematic structural diagram of a first resonant element in an eleventh speaker provided in an embodiment of the present application;

[0044] Figure 16 A schematic structural diagram of a first resonant element in a twelfth speaker provided in an embodiment of the present application;

[0045] Figure 17 A schematic cross-sectional view of a thirteenth speaker structure provided in an embodiment of the present application;

[0046] Figure 18 A schematic cross-sectional view of a fourteenth speaker structure provided in an embodiment of the present application;

[0047] Figure 19 A comparison chart of the bass enhancement effect of a speaker provided in an embodiment of the present application and a speaker in the related art.

[0048] Description of reference numerals:

[0049] 10-Device body; 11-Sound source; 12-Signal processing and controller; 13-Power amplifier; 20-Speaker;

[0050] 100 - cabinet; 110 - first cabinet; 111 - first sound outlet; 112 - first sound cavity; 113 - opening; 120 - second cabinet; 121 - second sound cavity; 122 - second sound outlet; 130 - through hole;

[0051] 200-speaker; 210-diaphragm; 220-magnetic circuit;

[0052] 300 - first resonator; 310 - sound propagation channel; 311 - sub-channel; 312 - third end; 313 - fourth end; 314 - communication port; 320 - sound outlet channel;

[0053] 400 - second resonant element; 410 - acoustic channel; 411 - first end; 412 - second end;

[0054] 500-first resonant element group;

[0055] 600-Extension tube.

[0056] To facilitate understanding of the solutions of the embodiments of the present application, the spline curves and arrows used in the numbers in the accompanying drawings are explained here: the components indicated by the spline curves without arrows can be solid components, that is, components with solid structures; the components indicated by the spline curves with arrows can be virtual components, that is, components without solid structures; in some cases, the components indicated by the spline curves with arrows can also be assemblies with solid structures or virtual structures.

[0057] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0059] It should be noted that, in this article, relational terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship (if any) indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a restriction on the embodiments of the present application. Moreover, the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not clearly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the phrase "comprising..." do not preclude the presence of other identical elements in the process, method, article, or device that includes the elements. If there is no conflict, the embodiments of the present application and the various features therein may be combined with each other and are all within the scope of protection of this application.

[0060] The low-frequency components of the speakers can provide a fuller, deeper and more powerful bass effect, adding dynamism and momentum to the music, allowing the listener to feel the power and charm of the music. Therefore, bass plays an extremely critical role in improving the sound quality of the speakers.

[0061] In order to enhance the bass effect of a speaker, the related art provides a speaker whose rear sound cavity has a bass reflex tube, a passive radiator or a labyrinth cabinet, which can enhance the bass enhancement effect of the speaker. However, the low-frequency diving capability of the speaker is limited.

[0062] Related art also provides a speaker that is a traditional dual-resonance bandpass speaker. Both the front and rear sound chambers of the speaker have a ported tube, a passive radiator, or a labyrinth cabinet to reduce the speaker's low-frequency depth. However, the speaker's effective frequency band is narrow, resulting in poor acoustic performance.

[0063] In view of this, embodiments of the present application provide a speaker and an electronic device to reduce the low-frequency diving depth of the speaker, widen the effective frequency band of the speaker, and thereby improve the acoustic performance of the speaker.

[0064] An embodiment of the present application provides an electronic device, which may be a home speaker device, a vehicle speaker device, a conference system speaker device, a stage speaker device, a professional recording studio speaker device, etc.

[0065] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0066] like Figure 1 As shown, the electronic device includes a device body 10 and a speaker 20. The speaker 20 is connected to the device body 10, and the device body 10 is used to transmit audio signals to the speaker 20, and the speaker 20 is used to convert the audio signals into audible sound waves.

[0067] It is understandable that Figure 1 Some components of the electronic device are only schematically shown, and the actual shapes, sizes, positions and structures of these components are not affected by the actual shapes, sizes, positions and structures of the electronic device. Figure 1 electronic devices may also include Figure 1 More or fewer parts.

[0068] like Figure 1 As shown, in some embodiments, the device body 10 may include a sound source 11, a signal processing and controller 12, and a power amplifier 13. The sound source 11 may be electrically connected to the signal processing and controller 12, the signal processing and controller 12 may be electrically connected to the power amplifier 13, and the power amplifier 13 may be electrically connected to the speaker 20.

[0069] In this way, the sound source 11 can generate an original audio signal. The signal processing and controller 12 can process the original audio signal. The power amplifier 13 can amplify the processed audio signal (e.g., a weak-level signal) to a power level sufficient to drive the speaker 20 to produce sound. The speaker 20 can receive the amplified audio signal and convert it into audible sound waves, that is, the speaker 20 can produce sound.

[0070] Of course, in addition to including the signal processing and controller 12 , the device body 10 may not include the signal processing and controller 12 in some embodiments.

[0071] In some possible implementations, the audio source 11 may be a television, a game console, or a record player of a home audio device, or an in-vehicle host of a vehicle audio device.

[0072] Figure 2 for Figure 1 A three-dimensional diagram of the middle speaker 20, Figure 3 for Figure 1 The front view of the middle speaker 20, Figure 4 for Figure 3 AA cross-section diagram in Figure 5 for Figure 3 In each figure, the X-axis is defined as the length direction of the speaker 20, the Y-axis is defined as the width direction of the speaker 20, and the Z-axis is defined as the height direction of the speaker 20.

[0073] like Figure 2 and Figure 3 As shown, the speaker 20 includes a box body 100, and the box body 100 includes a first sound outlet 111 and a second sound outlet 122. Figure 4 As shown, the sound box 20 also includes a speaker 200, and the cabinet 100 also includes a first sound cavity 112, a second sound cavity 121, and a through hole 130. The through hole 130 connects the first sound cavity 112 with the second sound cavity 121, the first sound outlet 111 connects the first sound cavity 112 with the exterior of the cabinet 100, and the second sound outlet 122 connects the second sound cavity 121 with the exterior of the cabinet 100. The speaker 200 is mounted in the through hole 130 and blocks the first sound cavity 112 from the second sound cavity 121. By providing the first sound cavity 112 and the second sound cavity 121, the sound emitted by the speaker 200 can be transmitted to the exterior of the cabinet 100 through the first sound cavity 112, the first sound outlet 111, the second sound cavity 121, and the second sound outlet 122.

[0074] like Figure 2 and Figure 3 As shown, in some embodiments, the box 100 may include a first box 110 and a second box 120. The first box 110 is connected to the second box 120. Figure 4 As shown, the first sound cavity 112 and the first sound outlet 111 can both be set in the first box body 110, the second sound cavity 121 and the second sound outlet 122 can both be set in the second box body 120, and the through hole 130 passes through the wall surface connecting the first box body 110 and the second box body 120 to each other.

[0075] In some possible implementations, the first box body 110 and the second box body 120 may be separate structures, and the first box body 110 and the second box body 120 may be fixedly connected by bonding, snapping, fastener connection, etc.

[0076] In some possible implementations, the first box body 110 and the second box body 120 may be an integral structure, that is, the first box body 110 and the second box body 120 may be integrally formed.

[0077] In some embodiments (not shown in the drawings of this embodiment), the speaker 20 may further include a partition, which is arranged inside the box 100. The partition can isolate the internal space of the box 100 into a first sound cavity 112 and a second sound cavity 121, and the through hole 130 can pass through the partition.

[0078] It should be noted that the embodiment of the present application does not limit the shape of the box body 100. For example, the box body 100 can be cylindrical, rectangular, cube or hexagonal prism.

[0079] The embodiment of the present application does not limit the shapes of the through hole 130 , the first sound cavity 112 , and the second sound cavity 121 . For example, the through hole 130 , the first sound cavity 112 , and the second sound cavity 121 may all be circular or square.

[0080] like Figure 4 As shown, in some embodiments, the speaker 200 may include a diaphragm portion 210 and a magnetic circuit portion 220, and one of the first sound cavity 112 and the second sound cavity 121 may be located on one side of the diaphragm portion 210, and the other may be located on one side of the magnetic circuit portion 220. The sound cavity located on one side of the diaphragm portion 210 may be referred to as a front sound cavity, and the sound cavity located on one side of the magnetic circuit portion 220 may be referred to as a rear sound cavity.

[0081] In order to broaden the effective frequency band of the speaker 20, as Figure 4 As shown, the speaker 20 further includes a first resonant member 300 and a second resonant member 400. The first resonant member 300 is disposed in one of the first sound cavity 112 and the second sound cavity 121 so that the first sound cavity 112 and the second sound cavity 121 have a first first-order acoustic modal frequency. The first resonant member 300 is an acoustic superstructure. The second resonant member 400 is disposed in the other of the first sound cavity 112 and the second sound cavity 121 so that the other of the first sound cavity 112 and the second sound cavity 121 has a second first-order acoustic modal frequency, which is different from the first first-order acoustic modal frequency.

[0082] In this way, the first resonant element 300 is disposed in one of the first sound cavity 112 and the second sound cavity 121, and the second resonant element 400 is disposed in the other of the first sound cavity 112 and the second sound cavity 121. The first sound cavity 112 and the second sound cavity 121 both form a resonant cavity, and the acoustic modes of both resonant cavities can couple with the structural modes of the loudspeaker 200, thereby enhancing the bass enhancement effect of the loudspeaker 20. At the same time, by providing two resonant cavities with different first-order acoustic mode frequencies, the low-frequency dive depth of the loudspeaker 20 can be reduced. In addition, the first resonant element 300 is an acoustic superstructure, which can increase the acoustic mode density of the first sound cavity 112. The acoustic mode density of the first sound cavity 112 is the number of acoustic modes within the unit frequency interval of the first sound cavity 112. That is to say, the acoustic superstructure can increase the number of acoustic modes within the unit frequency interval of the first sound cavity 112, so that the first sound cavity 112 has more orders of acoustic modes that can play a role, thereby further reducing the diving depth of the speaker 20 and widening the effective frequency band of the speaker 20.

[0083] In some possible implementations, the second first-order acoustic mode frequency is lower than the first first-order acoustic mode frequency.

[0084] When the second first-order acoustic mode frequency is equal to the first first-order acoustic mode frequency, the coupling between the first first-order acoustic mode, the second first-order acoustic mode, and the structural mode of the speaker 200 is uncontrollable. When the second first-order acoustic mode frequency is greater than the first first-order acoustic mode frequency, the low-frequency dive depth of the speaker 20 is insufficient, resulting in a narrow effective frequency band of the speaker 20.

[0085] Therefore, by setting the second first-order acoustic mode frequency to be lower than the first first-order acoustic mode frequency, the low-frequency diving depth of the speaker 20 can be reduced, so that the bass enhancement effect of the speaker 20 is better. At the same time, the effective frequency band of the speaker 20 can also be widened.

[0086] Of course, in addition to being smaller than the first-order acoustic modal frequency, in some embodiments, in some specific scenarios, such as when the environment does not have very high requirements on the bass enhancement effect and effective bandwidth of the speaker 20, the second-order acoustic modal frequency may also be greater than or equal to the first-order acoustic modal frequency.

[0087] In some possible implementations, the second first-order acoustic modal frequency can be changed based on a frequency calculation method for a Helmholtz resonator. For example, the second first-order acoustic modal frequency can be made lower than the first first-order acoustic modal frequency by reasonably changing the parameters of the second resonator 400. For example, when the second resonator 400 is an inverted tube, the second first-order acoustic modal frequency can be made lower than the first first-order acoustic modal frequency by adjusting the length of the inverted tube, the cross-sectional area of ​​the inverted tube, or the volume of the second sound cavity 121.

[0088] In some possible implementations, the first-order acoustic modal frequency can be changed based on the frequency calculation method of the Helmholtz resonator. For example, the second-order acoustic modal frequency can be made smaller than the first-order acoustic modal frequency by reasonably changing the parameters of the first resonator 300. For example, when the first resonator 300 has a sound propagation channel 310, the cross-sectional area and length of the sound propagation channel 310 can be adjusted to make the second-order acoustic modal frequency smaller than the first-order acoustic modal frequency.

[0089] like Figure 4 As shown, in some embodiments, the second resonator 400 may be a reflex tube, wherein one end of the reflex tube may be in communication with the second sound cavity 121 , and the other end of the reflex tube may be in communication with the second sound outlet 122 .

[0090] Since the design and manufacturing process of the bass reflex tube is relatively mature, using the existing bass reflex tube as the second resonant element 400 can reduce the manufacturing cost of the second resonant element 400 , thereby reducing the manufacturing cost of the speaker 20 .

[0091] Figure 6 This is a cross-sectional schematic diagram of the second speaker 20 provided in an embodiment of the present application.

[0092] like Figure 6 As shown, in some embodiments, the second resonant element 400 may be a passive radiator.

[0093] Since the design and manufacturing process of passive radiators is relatively mature, using existing passive radiators as the second resonant element 400 can reduce the manufacturing cost of the second resonant element 400, thereby reducing the manufacturing cost of the speaker 20.

[0094] Figure 7 This is a cross-sectional schematic diagram of a third speaker 20 provided in an embodiment of the present application.

[0095] like Figure 7 As shown, in some embodiments, the second resonant member 400 may include a plurality of acoustic channels 410 , which extend in a direction perpendicular to the height direction of the sound box 20 , and each acoustic channel 410 is located on the same side of the speaker 200 .

[0096] Along the height direction of the speaker 20, each acoustic channel 410 is arranged in sequence, and the acoustic channel 410 includes a first end 411 and a second end 412 arranged relatively along the extension direction of the acoustic channel 410, and the first end 411 and the second end 412 of one of the two adjacent acoustic channels 410 are arranged oppositely relative to the other, and the first end 411 of one of the two adjacent acoustic channels 410 is connected to the second end 412 of the other, and the acoustic channel 410 closest to the speaker 200 is used to receive the sound emitted by the speaker 200, and the acoustic channel 410 farthest from the speaker 200 is connected to the second sound outlet 122.

[0097] The above-mentioned second resonator 400 including multiple acoustic channels 410 can be a labyrinth box resonator in the prior art. The design and manufacturing process of the labyrinth box resonator is relatively mature. Using the existing labyrinth box resonator as the second resonator 400 can reduce the manufacturing cost of the second resonator 400, thereby reducing the manufacturing cost of the speaker 20.

[0098] Figure 8 This is a cross-sectional schematic diagram of the fourth speaker 20 provided in an embodiment of the present application.

[0099] like Figure 8 As shown, in some embodiments, the second resonant member 400 may be an acoustic superstructure.

[0100] It should be noted that, when the second resonant element 400 is an acoustic superstructure, the structure of the second resonant element 400 may be the same as or different from that of the first resonant element 300 .

[0101] like Figure 5 As shown, in some embodiments, the first resonator 300 has a sound propagation channel 310, which includes a plurality of sub-channels 311. The sub-channels 311 extend in a direction perpendicular to the height direction of the sound box 20, and the sub-channels 311 are arranged on the peripheral side of the speaker 200.

[0102] Along a direction perpendicular to the height direction of the speaker 20, each sub-channel 311 is arranged in sequence, and the sub-channel 311 includes a third end 312 and a fourth end 313 arranged relatively along the extension direction of the sub-channel 311. The third end 312 and the fourth end 313 of one of the two adjacent sub-channels 311 are arranged in opposite directions relative to the other. The third end 312 of one of the two adjacent sub-channels 311 is connected with the fourth end 313 of the other. The sub-channel 311 closest to the speaker 200 is used to receive the sound emitted by the speaker 200, and the sub-channel 311 farthest from the speaker 200 is connected with the first sound outlet 111.

[0103] By adopting this structural design, the acoustic mode density of the first sound cavity 112 can be further increased, that is, the number of acoustic modes within the unit frequency interval of the first sound cavity 112 can be increased, so that the first sound cavity 112 has more orders of acoustic mode frequencies to work, thereby further reducing the low-frequency diving depth of the speaker 20 and further widening the effective frequency band to further improve the acoustic performance of the speaker 20.

[0104] In some possible implementations, the lengths of the sub-channels 311 increase sequentially from the sub-channel 311 closest to the speaker 200 toward the sub-channel 311 farthest from the speaker 200 .

[0105] In this way, the effective length of the sound propagation channel 310 can be increased, and the first-order acoustic mode frequency of the first sound cavity 112 can be lower, so that the low-frequency diving depth of the speaker 20 is deeper, and the bass enhancement effect of the speaker 20 can be improved.

[0106] It should be noted that the embodiment of the present application does not limit the specific number of first sound holes 111 and sound propagation channels 310. For example, the number of first sound holes 111 and sound propagation channels 310 can be one, two, three, four, five or six.

[0107] In some possible implementations, the number of first sound outlet holes 111 is more than two, the number of sound propagation channels 310 is more than two, each sound propagation channel 310 is arranged around the periphery of the speaker 200, each sound propagation channel 310 is blocked from each other, and each sound propagation channel 310 is connected to each first sound outlet hole 111 one by one.

[0108] In this way, the sound emitted by the speaker 200 can be transmitted to the outside of the box 100 through different sound propagation channels 310 and different first sound outlets 111, thereby enhancing the low-frequency components of the sound at different directions through the sound propagation channels 310 at different positions.

[0109] like Figure 5 As shown, in some possible implementations, on a plane perpendicular to the height direction of the speaker 20 , the orthographic projection of the sub-channel 311 may be in the shape of an arc.

[0110] Figure 9 This is a diagram showing the positional relationship between the first resonant element 300 and the loudspeaker 200 in the fifth sound box 20 provided in an embodiment of the present application.

[0111] like Figure 9 As shown, in some possible implementations, on a plane perpendicular to the height direction of the speaker 20 , the orthographic projection of the sub-channel 311 may be in the shape of a broken line.

[0112] Figure 10This is a diagram showing the positional relationship between the first resonant element 300 and the loudspeaker 200 in the sixth sound box 20 provided in an embodiment of the present application.

[0113] like Figure 10 As shown, in some possible implementations, on a plane perpendicular to the height direction of the speaker 20 , the orthographic projection of the sub-channel 311 may be a straight line.

[0114] Figure 11 This is a schematic structural diagram of the first resonant element 300 in the seventh speaker 20 provided in an embodiment of the present application.

[0115] like Figure 11 As shown, there are more than two first resonators 300 , each of which is disposed around the circumference of the loudspeaker 200 and spaced apart in a direction perpendicular to the height direction of the sound box 20 .

[0116] The number of the first sound outlet holes 111 is more than two. The first resonator 300 has at least two sound propagation channels 310 . Each sound propagation channel 310 is disposed around the periphery of the speaker 200 , and each sound propagation channel 310 is isolated from each other.

[0117] The sound propagation channel 310 includes a plurality of sub-channels 311 . The sub-channels 311 extend in a direction perpendicular to the height direction of the sound box 20 . The sub-channels 311 are provided on the peripheral side of the speaker 200 .

[0118] Along a direction perpendicular to the height direction of the speaker 20, each sub-channel 311 is arranged in sequence, and the sub-channel 311 includes a third end 312 and a fourth end 313 arranged opposite to each other along the extension direction of the sub-channel 311. The third end 312 and the fourth end 313 of one of the two adjacent sub-channels 311 are arranged in opposite directions relative to the other, and the third end 312 of one of the two adjacent sub-channels 311 is connected to the fourth end 313 of the other.

[0119] In two adjacent first resonant members 300, the subchannel 311 of the first resonant member 300 closer to the speaker 200 and furthest from the speaker 200 is connected to the subchannel 311 of the first resonant member 300 farther from the speaker 200 and closest to the speaker 200. The subchannels 311 closest to the speaker 200 of the first resonant member 300 closest to the speaker 200 are used to receive sound emitted by the speaker 200, while the subchannels 311 furthest from the speaker 200 of the first resonant member 300 furthest from the speaker 200 are connected in a one-to-one correspondence with each first sound outlet 111.

[0120] In this way, the acoustic mode density of the first sound cavity 112 can be further increased, so that the first sound cavity 112 has more acoustic modes to play a role, thereby further reducing the low-frequency diving depth of the speaker 20 and widening the effective frequency band of the speaker to further improve the acoustic performance of the speaker 20.

[0121] In some possible implementations, the lengths of the sub-channels 311 of the first resonant elements 300 increase in sequence along a direction from the sub-channel 311 closest to the speaker 200 toward the sub-channel 311 farthest from the speaker 200 .

[0122] In this way, the effective length of the sound propagation channel 310 can be increased, and the first-order acoustic mode frequency of the first sound cavity 112 can be lower, so that the low-frequency diving depth of the speaker 20 is deeper, and the bass enhancement effect of the speaker 20 can be improved.

[0123] In some possible implementations, of two adjacent first resonant elements 300 , the length of the subchannel 311 of the first resonant element 300 farther from the speaker 200 is greater than the length of the subchannel 311 of the first resonant element 300 closer to the speaker 200 .

[0124] Figure 12 This is a schematic structural diagram of the first resonant element 300 in the eighth speaker 20 provided in an embodiment of the present application.

[0125] like Figure 12 As shown, in some embodiments, the number of the first sound outlet holes 111 is more than two, the number of the first resonant elements 300 is more than two, each first resonant element 300 is arranged around the circumference of the speaker 200, and there is a sound outlet channel 320 between two adjacent first resonant elements 300, one end of each sound outlet channel 320 is connected to each first sound outlet hole 111 one by one, and the other end of each sound outlet channel 320 is used to receive the sound emitted by the speaker 200.

[0126] The first resonator 300 has two sound propagation channels 310 . The sound propagation channels 310 include a plurality of sub-channels 311 . The sub-channels 311 extend in a direction perpendicular to the height direction of the sound box 20 . The sub-channels 311 are arranged on the circumference of the speaker 200 .

[0127] Along the direction perpendicular to the height direction of the speaker 20, each sub-channel 311 is arranged in sequence, and the sub-channel 311 includes a third end 312 and a fourth end 313 arranged relatively along the extension direction of the sub-channel 311, and the third end 312 and the fourth end 313 of one of the two adjacent sub-channels 311 are arranged in opposite directions relative to the other, and the third end 312 of one of the two adjacent sub-channels 311 is connected with the fourth end 313 of the other, and the sub-channel 311 of each sound propagation channel 310 closest to the speaker 200 is connected with the sound output channel 320 closest thereto, and the sub-channels 311 of each sound propagation channel 310 farthest from the speaker 200 are connected to each other.

[0128] In this way, the acoustic modal density of the first sound cavity 112 can be further increased, so that the first sound cavity 112 has more orders of acoustic modal frequencies that can work, thereby further reducing the low-frequency diving depth of the speaker 20 and widening the effective frequency band of the speaker to further improve the acoustic performance of the speaker 20.

[0129] In some possible implementations, the lengths of the sub-channels 311 increase sequentially from the sub-channel 311 closest to the speaker 200 toward the sub-channel 311 farthest from the speaker 200 .

[0130] In this way, the effective length of the sound propagation channel 310 can be increased, and the first-order acoustic mode frequency of the first sound cavity 112 can be lower, so that the low-frequency diving depth of the speaker 20 is deeper, and the bass enhancement effect of the speaker 20 can be improved.

[0131] Figure 13 This is a schematic structural diagram of the first resonant element 300 in the ninth speaker 20 provided in an embodiment of the present application.

[0132] like Figure 13 As shown, in some embodiments, the speaker 20 further includes at least two first resonance element groups 500 , and the first resonance element groups 500 are sequentially spaced apart along a direction perpendicular to the height direction of the speaker 20 .

[0133] The first resonant element group 500 includes at least two first resonant elements 300 . The first resonant elements 300 of each first resonant element group 500 are spaced apart and wound around the circumference of the speaker 200 .

[0134] In this way, the acoustic modal density of the first sound cavity 112 can be further increased, so that the first sound cavity 112 has more orders of acoustic modal frequencies that can work, thereby further reducing the low-frequency diving depth of the speaker 20 and widening the effective frequency band of the speaker to further improve the acoustic performance of the speaker 20.

[0135] In some possible implementations, the lengths of the first resonant elements 300 increase in sequence from the first resonant element group 500 closest to the speaker 200 toward the first resonant element group 500 farthest from the speaker 200 .

[0136] In this way, the effective length of the sound propagation channel 310 can be increased, and the first-order acoustic mode frequency of the first sound cavity 112 can be lower, so that the low-frequency diving depth of the speaker 20 is deeper, and the bass enhancement effect of the speaker 20 can be improved.

[0137] Figure 14 This is a cross-sectional schematic diagram of the partial structure of the tenth speaker 20 provided in an embodiment of the present application.

[0138] like Figure 14 As shown, in some embodiments, there are two or more first resonant members 300, and the first resonant members 300 are sequentially arranged along the height direction of the speaker box 20. The first resonant members 300 have sound propagation channels 310, and the sound propagation channels 310 are interconnected. One of the sound propagation channel 310 closest to the speaker 200 and the sound propagation channel 310 farthest from the speaker 200 is used to receive the sound emitted by the speaker 200, and the other is connected to the first sound outlet 111.

[0139] In this way, the length of the channel through which the sound emitted by the speaker 200 propagates in the first sound cavity 112 can be increased, and the first-order acoustic mode frequency of the first sound cavity 112 can be further reduced, so that the low-frequency diving depth of the speaker 20 is deeper, and the bass enhancement effect of the speaker 20 can be further improved.

[0140] Figure 15 This is a schematic structural diagram of the first resonant element 300 in the eleventh speaker 20 provided in an embodiment of the present application.

[0141] like Figure 15 As shown, in some embodiments, the first resonator 300 has a sound propagation channel 310 , which includes a plurality of sub-channels 311 and a plurality of communication ports 314 . The sub-channels 311 are disposed on the peripheral side of the speaker 200 .

[0142] The sub-channels 311 are arranged in sequence along a direction perpendicular to the height direction of the speaker box 20. The lengths of the sub-channels 311 increase in sequence from the sub-channel 311 closest to the speaker 200 to the sub-channel 311 farthest from the speaker 200.

[0143] Two adjacent sub-channels 311 are connected via a communication port 314. Along a direction perpendicular to the height direction of the speaker box 20, the communication port 314 connecting one of the two adjacent sub-channels 311 and the communication port 314 connecting the other are located on opposite sides of the speaker 200, respectively. The communication port 314 connecting a sub-channel 311 is a communication port 314 used to connect the sub-channel 311 with the next sub-channel 311.

[0144] Along a direction perpendicular to the height direction of the sound box 20 , the communication opening 314 closest to the speaker 200 is used to receive the sound emitted by the speaker 200 , and the communication opening 314 farthest from the speaker 200 is connected to the first sound outlet 111 .

[0145] In this way, the acoustic modal density of the first sound cavity 112 can be further increased, so that the first sound cavity 112 has more orders of acoustic modal frequencies that can work, thereby further reducing the low-frequency diving depth of the speaker 20 and further widening the effective frequency band of the speaker 20 to further improve the acoustic performance of the speaker 20.

[0146] Figure 16 This is a schematic structural diagram of the first resonant element 300 in the twelfth speaker 20 provided in an embodiment of the present application.

[0147] like Figure 16 As shown, in some embodiments, the first resonator 300 has a sound propagation channel 310 , one end of the sound propagation channel 310 is used to receive the sound emitted by the speaker 200 , and the other end is connected to the first sound outlet 111 .

[0148] On a plane perpendicular to the height direction of the speaker box 20 , the orthographic projection of the sound propagation channel 310 is in the shape of an Archimedean spiral.

[0149] In this way, the acoustic modal density of the first sound cavity 112 can be further increased, so that the first sound cavity 112 has more orders of acoustic modal frequencies that can work, thereby further reducing the diving depth of the speaker 20 and widening the effective frequency band of the speaker 20 to further improve the acoustic performance of the speaker 20.

[0150] Figure 17 This is a cross-sectional schematic diagram of the partial structure of the thirteenth speaker 20 provided in an embodiment of the present application.

[0151] like Figure 17 As shown, in some embodiments, the box 100 further includes an opening 113 . Along the height direction of the sound box 20 , one end of the opening 113 faces the speaker 200 , and the other end of the opening 113 communicates with the outside of the box 100 .

[0152] In this way, the acoustic modal density of the first sound cavity 112 can be further increased, so that the first sound cavity 112 has more orders of acoustic modal frequencies that can work, thereby further reducing the low-frequency diving depth of the speaker 20 and further widening the effective frequency band of the speaker 20 to further improve the acoustic performance of the speaker 20.

[0153] Figure 18 This is a cross-sectional schematic diagram of the partial structure of the fourteenth speaker 20 provided in an embodiment of the present application.

[0154] like Figure 18 As shown, in some embodiments, the cabinet 100 further includes an extension tube 600 , which is installed in the opening 113 , with one end of the extension tube 600 extending toward the speaker 200 and the other end of the extension tube 600 communicating with the outside of the cabinet 100 .

[0155] In this way, the acoustic modal density of the first sound cavity 112 can be further increased, so that the first sound cavity 112 has more orders of acoustic modal frequencies that can work, thereby further reducing the low-frequency diving depth of the speaker 20 and further widening the effective frequency band of the speaker 20 to further improve the acoustic performance of the speaker 20.

[0156] Figure 19 This is a comparison chart of the bass enhancement effect of a speaker 20 provided in an embodiment of the present application and a conventional dual-resonance bandpass design speaker in the related art. The speaker 20 provided in an embodiment of the present application and the speaker 20 in the related art have the same dimensions.

[0157] from Figure 19 As can be seen, compared to conventional dual-resonance bandpass speakers in related art, the speaker 20 provided in the embodiment of the present application has a deeper low-frequency dive and a wider effective frequency band. The dive frequency is reduced from 67Hz to 60Hz, and the effective frequency band is widened from 67-359Hz to 60-704Hz. This shows that the speaker provided in the present application can achieve a deeper low-frequency dive and a wider effective frequency band.

[0158] It should be understood that the embodiments of the present application are not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A speaker, characterized in that: include: A box (100), the box (100) comprising a first sound outlet (111), a first sound cavity (112), a through hole (130), a second sound cavity (121), and a second sound outlet (122), the through hole (130) communicating with the first sound cavity (112) and the second sound cavity (121), the first sound outlet (111) communicating with the first sound cavity (112) and the outside of the box (100), and the second sound outlet (122) communicating with the second sound cavity (121) and the outside of the box (100); a loudspeaker (200), the loudspeaker (200) being installed in the through hole (130) and blocking the first sound cavity (112) and the second sound cavity (121); a first resonant element (300), the first resonant element (300) being arranged in one of the first sound cavity (112) and the second sound cavity (121), so that one of the first sound cavity (112) and the second sound cavity (121) has a first first-order acoustic modal frequency, and the first resonant element (300) is an acoustic superstructure; A second resonant element (400) is provided in the other of the first sound cavity (112) and the second sound cavity (121), so that the other of the first sound cavity (112) and the second sound cavity (121) has a second first-order acoustic modal frequency, and the second first-order acoustic modal frequency is different from the first first-order acoustic modal frequency.

2. The speaker according to claim 1, characterized in that The second first-order acoustic mode frequency is lower than the first first-order acoustic mode frequency.

3. The speaker according to claim 1, characterized in that The second resonant element (400) is an acoustic superstructure, a phase-inverting tube or a passive radiator.

4. The speaker according to claim 1, characterized in that The second resonant member (400) includes a plurality of acoustic channels (410), the acoustic channels (410) extending in a direction perpendicular to the height direction of the sound box (20), and the acoustic channels (410) are located on the same side of the speaker (200); Along the height direction of the sound box (20), each of the acoustic channels (410) is arranged in sequence, and the acoustic channel (410) includes a first end (411) and a second end (412) arranged relatively along the extension direction of the acoustic channel (410), the first end (411) and the second end (412) of one of two adjacent acoustic channels (410) are arranged in the opposite direction relative to the other, the first end (411) of one of two adjacent acoustic channels (410) is communicated with the second end (412) of the other, the acoustic channel (410) closest to the speaker (200) is used to receive the sound emitted by the speaker (200), and the acoustic channel (410) farthest from the speaker (200) is communicated with the second sound outlet (122).

5. The speaker according to any one of claims 1 to 4, characterized in that: The first resonator (300) has a sound propagation channel (310), the sound propagation channel (310) includes a plurality of sub-channels (311), the sub-channels (311) extend in a direction perpendicular to the height direction of the sound box (20), and the sub-channels (311) are arranged on the circumference of the speaker (200); Along a direction perpendicular to the height direction of the speaker (20), each of the sub-channels (311) is arranged in sequence, and the sub-channels (311) include a third end (312) and a fourth end (313) arranged opposite to each other along the extension direction of the sub-channels (311), the third end (312) and the fourth end (313) of one of two adjacent sub-channels (311) are arranged in the opposite direction relative to the other, and the third end (312) of one of the two adjacent sub-channels (311) is communicated with the fourth end (313) of the other, the sub-channel (311) closest to the speaker (200) is used to receive the sound emitted by the speaker (200), and the sub-channel (311) farthest from the speaker (200) is communicated with the first sound outlet (111).

6. The speaker according to claim 5, characterized in that Along the direction from the sub-channel (311) closest to the speaker (200) toward the sub-channel (311) farthest from the speaker (200), the lengths of the sub-channels (311) increase in sequence.

7. The speaker according to claim 5, characterized in that The number of the first sound outlet holes (111) is more than two, the number of the sound propagation channels (310) is more than two, each of the sound propagation channels (310) is arranged around the circumference of the speaker (200), each of the sound propagation channels (310) is blocked from each other, and each of the sound propagation channels (310) is connected to each of the first sound outlet holes (111) in a one-to-one correspondence.

8. The speaker according to any one of claims 1 to 4, characterized in that: The number of the first sound outlet holes (111) is more than two, the number of the first resonant members (300) is more than two, each first resonant member (300) is arranged around the circumference of the speaker (200), a sound outlet channel (320) is provided between two adjacent first resonant members (300), one end of each sound outlet channel (320) is connected to each first sound outlet hole (111) in a one-to-one correspondence, and the other end of each sound outlet channel (320) is used to receive the sound emitted by the speaker (200); The first resonator (300) has two sound propagation channels (310), the sound propagation channels (310) include a plurality of sub-channels (311), the sub-channels (311) extend in a direction perpendicular to the height direction of the sound box (20), and the sub-channels (311) are arranged on the circumference of the speaker (200); Along a direction perpendicular to the height direction of the speaker (20), each of the sub-channels (311) is arranged in sequence, and the sub-channels (311) include a third end (312) and a fourth end (313) arranged opposite to each other along the extension direction of the sub-channels (311), the third end (312) and the fourth end (313) of one of two adjacent sub-channels (311) are arranged in opposite directions relative to the other, the third end (312) of one of two adjacent sub-channels (311) is connected to the fourth end (313) of the other, the sub-channel (311) closest to the speaker (200) of each sound propagation channel (310) is connected to the sound output channel (320) closest to it, and the sub-channels (311) farthest from the speaker (200) of each sound propagation channel (310) are connected to each other; Along the direction from the sub-channel (311) closest to the speaker (200) toward the sub-channel (311) farthest from the speaker (200), the lengths of the sub-channels (311) increase in sequence.

9. The speaker according to any one of claims 1 to 4, characterized in that: It also includes at least two first resonant member groups (500), each of which is arranged in sequence and spaced apart along a direction perpendicular to the height direction of the speaker box (20); The first resonant element group (500) includes at least two first resonant elements (300), and the first resonant elements (300) of each first resonant element group (500) are arranged at intervals and wound around the circumference of the speaker (200); Along the direction from the first resonant member group (500) closest to the speaker (200) toward the first resonant member group (500) farthest from the speaker (200), the lengths of the first resonant members (300) increase in sequence.

10. An electronic device, characterized in that: The invention comprises a device body (10) and a speaker (20) according to any one of claims 1 to 9, connected to the device body (10).

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