Loudspeaker and earphone

Abstract

The present application relates to a kind of loudspeaker and earphone, loudspeaker includes shell and sound production module, shell has first shell wall, second shell wall and perforation.Perforation is opened in shell, and ear canal is communicated with the outside world through the perforation, so as to meet the requirement of wearing comfort;In the working process of loudspeaker, first sound production module is directly oriented to ear canal through first sound hole, and second sound production module is emitted from the side away from ear canal through second sound hole, the sound emitted by second sound production module is conducted to the side where first sound hole is located through the perforation, in combination with frequency division technology or noise reduction technology, the sound quality of open earphone can be improved, so as to realize the balance of earphone in wearing comfort and sound quality experience two aspects.

Description

Technical Field

[0001] This invention relates to the field of headphone technology, and in particular to a speaker and headphones. Background Technology

[0002] With the continuous development of audio technology, headphones have become one of the most common consumer electronics products. As the sound-producing component of headphones, the speaker's structural design directly determines the headphone's sound quality.

[0003] In related technologies, wireless headphones are generally classified into two main categories based on their wearing form: in-ear and open-ear. In-ear headphones, through their earbud structure, penetrate deep into the ear canal to form a sealed space. Their acoustic sealing allows for better low-frequency response, detail reproduction, and noise reduction, making them suitable for scenarios with high sound quality requirements. However, their closed structure can easily lead to discomfort such as a stuffy or pressured feeling in the ear canal during prolonged wear, and may even affect ear health. Open-ear headphones, on the other hand, maintain communication between the ear canal and the outside world through non-invasive wearing methods (such as ear hooks or ear supports), offering better wearing comfort and the ability to perceive ambient sound, thus improving safety. However, due to their open acoustic structure, they typically differ from in-ear headphones in terms of low-frequency quantity and soundstage immersion, and are more susceptible to external noise interference, affecting sound quality stability. Current technologies still struggle to achieve a comprehensive balance between wearing comfort and sound quality, leaving room for further improvement. Summary of the Invention

[0004] This invention provides a speaker and headphones to solve the above-mentioned problems.

[0005] A loudspeaker, comprising: A housing having a first shell wall and a second shell wall disposed opposite to each other, and a perforation extending from the first shell wall to the second shell wall in the thickness direction; the first shell wall having a first sound outlet, and the second shell wall having a second sound outlet; and The sound-emitting module includes a first sound-emitting module and a second sound-emitting module. The first sound-emitting module is disposed inside the housing and surrounds the hole wall of the perforation and emits sound corresponding to the first sound outlet hole. The second sound-emitting module is disposed inside the housing and surrounds the hole wall of the perforation and emits sound corresponding to the second sound outlet hole.

[0006] In one embodiment, the housing has a first mounting cavity and a second mounting cavity spaced apart in the thickness direction, the first sound-generating module is disposed in the first mounting cavity and has a first diaphragm disposed toward the first sound outlet, and the second sound-generating module is disposed in the second mounting cavity and has a second diaphragm disposed toward the second sound outlet.

[0007] In one embodiment, the periphery of the housing has a first hole communicating with the first mounting cavity and a second hole communicating with the second mounting cavity, the first hole and the second hole being spaced apart on the periphery of the housing; the speaker includes a first tuning mesh and a second tuning mesh, the first tuning mesh covering the first hole and fixedly connected to the housing, and the second tuning mesh covering the second hole and fixedly connected to the housing.

[0008] In one embodiment, the housing includes a housing base, a housing cover, and a partition disposed within the housing base. The housing base and the housing cover together enclose a mounting cavity. The partition divides the mounting cavity into a first mounting cavity and a second mounting cavity. The housing base has a second housing wall, a first hole, and a second hole. The housing cover has the first housing wall. The second mounting cavity includes a first cavity and a second cavity that are connected in the thickness direction. The first cavity and the second cavity are respectively disposed around the hole wall of the perforation. The second cavity is further away from the second sound outlet hole than the first cavity, and the radial width of the second cavity is smaller than the radial width of the first cavity. The second sound outlet hole is opened in the cavity wall of the first cavity. The connection between the cavity wall of the first cavity and the cavity wall of the second cavity has an abutment platform. The second sound-emitting module abuts against and is confined within the abutment platform, and at least a portion of the second diaphragm is housed within the first cavity.

[0009] In one embodiment, the housing has a first opening at the end opposite to the second sound outlet, the cover is annular and is inserted into the housing through the first opening and protrudes from the first opening, the first sound-generating module, the partition, the second sound-generating module and the cover are stacked sequentially in the thickness direction; the cover has a third cavity facing the first sound-generating module, the first sound outlet is opened in the cavity wall of the third cavity, and at least a portion of the first diaphragm is housed in the third cavity.

[0010] In one embodiment, the first sound outlet is provided in a plurality of locations and is evenly spaced around the perforation wall of the first shell wall; the second sound outlet is provided in a plurality of locations and is evenly spaced around the perforation wall of the second shell wall.

[0011] In one embodiment, the speaker includes a cover plate, a circuit board disposed on the cover plate, and a protective adhesive connecting the circuit board and the housing. The cover plate is disposed on the side of the first housing wall opposite to the second housing wall, and the circuit board is disposed on the side of the cover plate opposite to the housing. The first sound-emitting module and the second sound-emitting module are electrically connected to the circuit board, respectively. The protective adhesive covers at least a portion of the circuit board and the cover plate and is fixedly connected to the housing.

[0012] An earphone includes a housing, a battery assembly and a speaker disposed within the housing. The speaker includes a shell and a sound-emitting module. The housing has a first shell wall and a second shell wall disposed opposite to each other, and a through hole extending from the first shell wall to the second shell wall in the thickness direction. The first shell wall has a first sound outlet, and the second shell wall has a second sound outlet. The sound-emitting module includes a first sound-emitting module and a second sound-emitting module. The first sound-emitting module is disposed within the housing and surrounds the hole wall of the through hole and emits sound corresponding to the first sound outlet. The second sound-emitting module is disposed within the housing and surrounds the hole wall of the through hole and emits sound corresponding to the second sound outlet. The battery assembly is used to power the first sound-emitting module and the second sound-emitting module. The housing has a cavity, a second opening and a third opening. The speaker is housed within the cavity. The second opening communicates with the third opening and is disposed corresponding to the through hole. The second opening and the third opening are respectively connected to the outside.

[0013] In one embodiment, the housing includes an ear hook, a battery compartment connected to one end of the ear hook, and a sound transmission shell connected to the other end of the ear hook. The battery assembly is disposed within the battery compartment, and the speaker is disposed within the sound transmission shell. The ear hook has a wiring channel through which the battery assembly is electrically connected to the speaker. The earphone is worn on the user's ear so that the battery compartment is located on one side of the ear and the sound transmission shell is located on the other side of the ear. The sound transmission shell includes a first shell and a second shell connected to each other. The first shell is connected to the ear hook, and the first shell and the second shell together enclose the cavity. At least one of the first shell and the second shell has a protruding ring passing through the perforation. The shell extends around the protruding ring, and the protruding ring has a second opening and a third opening.

[0014] In one embodiment, the housing includes a housing base, a housing cover, and a partition disposed within the housing base. The housing base and the housing cover together enclose a mounting cavity. The partition divides the mounting cavity into a first mounting cavity and a second mounting cavity. A first sound-emitting module is disposed within the first mounting cavity and has a first diaphragm facing the first sound outlet. A second sound-emitting module is disposed within the second mounting cavity and has a second diaphragm facing the second sound outlet. The housing base has a second housing wall, and the housing cover has a first housing wall. A first hole communicating with the first mounting cavity and a second hole communicating with the second mounting cavity are opened on the periphery of the housing base. The first hole and the second hole are spaced apart on the periphery of the housing base. The loudspeaker includes a first tuning mesh and a second tuning mesh. The first tuning mesh covers the first hole and is fixedly connected to the housing base. The second tuning mesh covers the second hole and is fixedly connected to the housing base. The first mounting cavity communicates with the cavity via the first tuning mesh, and the second mounting cavity communicates with the cavity via the second tuning mesh.

[0015] The above speaker includes a housing and a sound-emitting module. The housing has a first housing wall and a second housing wall disposed opposite to each other, and a through hole extending from the first housing wall to the second housing wall in the thickness direction. The first housing wall has a first sound outlet hole, and the second housing wall has a second sound outlet hole. The sound-emitting module includes a first sound-emitting module and a second sound-emitting module. The first sound-emitting module is disposed within the housing and surrounds the hole wall of the through hole and emits sound corresponding to the first sound outlet hole. The second sound-emitting module is disposed within the housing and surrounds the hole wall of the through hole and emits sound corresponding to the second sound outlet hole. When the above speakers are applied to open-back headphones, such as clip-on headphones, the shell has perforations extending from the first shell wall to the second shell wall, allowing the ear canal to connect with the outside world, thus meeting the requirements for wearing comfort. During the operation of the speakers, the first sound-emitting module can emit sound directly towards the user's ear canal through the first sound outlet, while the second sound-emitting module emits sound from the side away from the user's ear canal through the second sound outlet. The sound emitted by the second sound-emitting module can be conducted to the side where the first sound outlet is located through the perforations. Combined with crossover technology or noise reduction technology, the sound quality of open-back headphones can be improved, thereby achieving a balance between wearing comfort and sound quality experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of an embodiment of headphones; Figure 2 for Figure 1 A schematic diagram of the headphones shown from another perspective; Figure 3 for Figure 1 A cross-sectional view of the headphones shown; Figure 4 for Figure 1 A cross-sectional view of the speaker of the headphones shown; Figure 5 for Figure 1 A cross-sectional view of the speaker of the headphones shown, with the sound-generating module removed. Figure 6 for Figure 1 An exploded view of the speaker of the headphones shown. Figure 7 for Figure 1 An exploded view of the headphone speaker from another perspective; Figure 8 for Figure 1 An exploded view of the sound transmission housing of the earphone shown. Figure 9 for Figure 6 An exploded view of the second sound-emitting module of the headphone speaker shown.

[0018] Figure label: 20. Earphone; 21. Housing; 21a. Cavity; 21b. Second opening; 21c. Third opening; 211. Ear hook; 2111. Wiring channel; 212. Battery compartment; 2121. Opening; 213. Sound housing; 213a. Protruding ring; 213a1. First protruding ring; 213a2. Second protruding ring; 2131. First housing; 2131a. Mounting hole; 21311. Annular housing; 21312. Sound guide; 2132. Third... Two shells; 2132a, first mounting port; 2132b, second mounting port; 21321, bottom shell; 21322, middle shell; 22, battery assembly; 221, motherboard; 222, battery; 223, charging contact; 10, speaker; 11, housing; 11a, first shell wall; 11a1, first sound outlet; 11b, second shell wall; 11b1, second sound outlet; 11c, perforation; 111, housing base; 111a, first opening; 111b, First hole; 111c, Second hole; 112, Shell cover; 1121, Third cavity; 1122, Abutting part; 113, Partition plate; 114, Mounting cavity; 1141, First mounting cavity; 1142, Second mounting cavity; 11421, First cavity; 11422, Second cavity; 11423, Abutting platform; 12, Sound generating module; 121, First sound generating module; 1211, First diaphragm; 122, Second sound generating module; 122 a. Vibrating cavity; 122b. Vent hole; 1221. Second diaphragm; 12211. Diaphragm body; 12212. Voice coil; 12213. First fixing ring; 12214. Second fixing ring; 1222. First magnet; 1223. Second magnet; 1224. First pole piece; 1225. Second pole piece; 13. First tuning mesh; 14. Second tuning mesh; 15. Cover plate; 16. Circuit board; 17. Protective adhesive; 18. Acquisition module. Detailed Implementation

[0019] The following detailed description of preferred embodiments is a preferred mode for carrying out the invention. This description is not intended to be limiting; it is provided to illustrate the general principles of the invention.

[0020] It should be understood that, for ease of understanding of the present invention, the terms "connection," "coupling," and "installation" in the following description refer to the connection relationships shown in the drawings. For example, "connection" can refer to a permanent connection or a detachable connection. Furthermore, "connection" can also refer to a direct connection or an indirect connection, or a connection via other auxiliary components. Therefore, the above terms should not be construed as limiting the actual connections of the various elements of the present invention.

[0021] It should be understood that the terms "length," "width," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "upper," "lower," "external," and "internal" refer to the orientation or positioning relationship in the accompanying drawings to facilitate understanding of the invention, but do not limit the actual location or orientation of the invention. Therefore, the above terms should not be construed as limiting the actual location of the various elements of the invention.

[0022] It should be understood that the terms "first," "second," "a," and "an" in the following description refer to "at least one" or "one or more" in the embodiments. In particular, the term "a" may refer to "an" in one embodiment and "more than one" in another embodiment. Therefore, the above terms should not be construed as limiting the actual number of elements of the present invention.

[0023] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0024] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4This invention discloses an earphone 20, which may include a housing 21, a battery assembly 22 and a speaker 10 disposed within the housing 21. The speaker 10 includes a housing 11 and a sound-emitting module 12. The housing 11 has a first housing wall 11a and a second housing wall 11b disposed opposite to each other, and a through hole 11c extending from the first housing wall 11a to the second housing wall 11b in the thickness direction. The first housing wall 11a has a first sound outlet 11a1, and the second housing wall 11b has a second sound outlet 11b1. The sound-emitting module 12 includes a first sound-emitting module 121 and a second sound-emitting module 122. The first sound-emitting module 121 is disposed within the housing 11 and surrounds the wall of the through hole 11c, corresponding to the first sound outlet 11a1 for sound emission. The second sound-emitting module 122 is disposed within the housing 11 and surrounds the wall of the through hole 11c, corresponding to the second sound outlet 11b1 for sound emission. The battery assembly 22 is used to supply power to the first sound-emitting module 121 and the second sound-emitting module 122. In some embodiments, the battery assembly 22 may include a motherboard 221 and a battery 222 that are electrically connected. The battery 222 may be a rechargeable lithium battery 222 to ensure the battery life of the earphone 20 and improve the convenience of use. The motherboard 221 may integrate functional modules such as a power management unit and a Bluetooth communication module, and work with devices such as a speaker 10 and a microphone to realize communication connection between the earphone 20 and external devices such as mobile phones and tablets, and to play audio. The specific implementation of the battery assembly 22 has been fully disclosed in the prior art and will not be elaborated here.

[0025] Continue to refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the housing 21 may include an ear hook 211, a battery compartment 212 connected to one end of the ear hook 211, and a sound-transmitting shell 213 connected to the other end of the ear hook 211. The battery assembly 22 is disposed within the battery compartment 212, and the speaker 10 is disposed within the sound-transmitting shell 213. The ear hook 211 has a wiring channel 2111, through which the battery assembly 22 can pass a cable to enter the sound-transmitting shell 213 and be electrically connected to the speaker 10. The earphone 20 is worn on the user's ear, with the battery compartment 212 positioned on one side of the ear and the sound-transmitting shell 213 on the other side. The sound-transmitting shell 213 may be confined within the concha of the ear, and the first sound-emitting module 121 of the speaker 10 disposed within the sound-transmitting shell 213 can emit sound directly toward the user's ear canal. Figure 2As shown, the battery compartment 212 can be approximately hollow, ellipsoidal in shape, and can be used to house the battery assembly 22 of the earphone 20. The battery assembly 22 can be provided with charging contacts 223 electrically connected to the main board 221. The charging contacts 223 can be made of a conductive and highly conductive metallic material, such as a copper alloy. The charging contacts 223 can be exposed to the outside through structures such as openings 2121 in the battery compartment 212 to conductively contact external structures, such as the charging terminals of the earphone case, to charge the battery 222. In some embodiments, the ear hook 211 can be made of an elastic material such as vulcanized rubber, or the ear hook 211 can be movably connected to the battery compartment 212, with an elastic element such as a torsion spring at the connection point. Through the elastic deformation of the ear hook 211 itself or the elastic deformation of the elastic element, the ear can be inserted between the battery compartment 212 and the sound transmission shell 213. Furthermore, the elastic deformation of the ear hook 211 or the elastic deformation of the elastic element causes the battery compartment 212 and the sound transmission shell 213 to tend to move closer together, improving the convenience of wearing the earphone 20 while ensuring that the earphone 20 is stably held in the user's ear. The specific structure and connection method of the ear hook 211 and the battery compartment 212 can be selected from mature existing technologies, and will not be elaborated here.

[0026] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 In some embodiments, the housing 11 of the loudspeaker 10 may be a hollow cylindrical shape and housed within a sound transmission shell 213. The housing 11 may include a housing base 111, a housing cover 112 connected together, and a partition 113 disposed within the housing base 111. The housing base 111 has a second housing wall 11b, and the housing cover 112 has a first housing wall 11a. The housing base 111 and the housing cover 112 together enclose a mounting cavity 114. The partition 113 divides the mounting cavity 114 into a first mounting cavity 1141 and a second mounting cavity 1142. A first sound-emitting module 121 is disposed within the first mounting cavity 1141 and has a first diaphragm 1211 facing the first sound outlet 11a1. A second sound-emitting module 122 is disposed within the second mounting cavity 1142 and has a second diaphragm 1221 facing the second sound outlet 11b1. Figure 5 As shown, the first mounting cavity 1141 and the second mounting cavity 1142 are spaced apart in the thickness direction of the housing 11. The first mounting cavity 1141 communicates with the first sound outlet 11a1, and the second mounting cavity 1142 communicates with the second sound outlet 11b1. In some embodiments, the housing 111 has a first opening 111a at the end opposite to the second sound outlet 11b1. The housing cover 112 is annular and is inserted into the housing 111 through the first opening 111a and protrudes from the first opening 111a. The first sound-emitting module 121, the partition 113, the second sound-emitting module 122, and the housing cover 112 are stacked sequentially in the thickness direction to achieve convenient assembly of the speaker 10 and improve the compact layout of the internal structure.

[0027] refer to Figure 6 and Figure 7 In some embodiments, a plurality of first sound outlet holes 11a1 are provided and are evenly spaced around the wall of the through hole 11c on the first shell wall 11a. A plurality of second sound outlet holes 11b1 are provided and are evenly spaced around the wall of the through hole 11c on the second shell wall 11b. The above structural design, on the one hand, makes it less likely for the speaker 10 to be blocked by foreign objects such as earwax or dust compared to a single first sound outlet 11a1 and a single second sound outlet 11b1, thus ensuring the long-term reliable use of the speaker 10; on the other hand, the first sound-emitting module 121 emits sound through multiple first sound outlets 11a1 and the second sound-emitting module 122 emits sound through multiple second sound outlets 11b1, thereby dispersing the impact of the transient airflow generated by the high-speed vibration of the first diaphragm 1211 or the second diaphragm 1221 on the first shell wall 11a and the second shell wall 11b during the operation of the first sound-emitting module 121 and the second sound-emitting module 122, and suppressing turbulent noise.

[0028] refer to Figure 3 , Figure 4 and Figure 8 In some embodiments, the housing 21 has a cavity 21a, a second opening 21b, and a third opening 21c. The speaker 10 is housed within the cavity 21a. The second opening 21b communicates with the third opening 21c and is correspondingly positioned to the through hole 11c. The second opening 21b and the third opening 21c are respectively connected to the outside. Specifically, as shown... Figure 3 , Figure 8 As shown, the sound transmission shell 213 may include a first shell 2131 and a second shell 2132 connected to each other. The first shell 2131 can be connected to the ear hook 211 by means of heat fusion, adhesive bonding or snap-fit. The first shell 2131 and the second shell 2132 together enclose a cavity 21a. At least one of the first shell 2131 and the second shell 2132 has a protruding ring 213a passing through the perforation 11c. The shell base 111 and the shell cover 112 extend around the protruding ring 213a. The protruding ring 213a has a second opening 21b and a third opening 21c. Figure 3As shown, in this application, both the first shell 2131 and the second shell 2132 have a partial protruding ring 213a. For easy distinction, the protruding ring 213a can be divided into a first protruding ring 213a1 disposed in the first shell 2131 and a second protruding ring 213a2 disposed in the second shell 2132. The first protruding ring 213a1 may have a second opening 21b, and the second protruding ring 213a2 may have a third opening 21c. The first protruding ring 213a1 passes through the perforation 11c from one end of the shell 11 near the ear hook 211, and the second protruding ring 213a2 passes through the perforation 11c from the other end of the shell 11. The first protruding ring 213a1 can abut against the second protruding ring 213a2, thereby fixing the speaker 10 in the cavity 21a while making the second opening 21b and the third opening 21c communicate.

[0029] In some implementations, such as Figure 3 , Figure 8 As shown, the second shell 2132 may include a bottom shell 21321 and a middle shell 21322. The bottom shell 21321 has a second convex ring 213a2, and the middle shell 21322 may have a first mounting port 2132a and a second mounting port 2132b. The diameter of the first mounting port 2132a may be larger than the diameter of the second mounting port 2132b. During the assembly of the sound transmission shell 213 and the speaker 10, the speaker 10 can enter the middle shell 21322 through the first mounting port 2132a. After the speaker 10 enters the middle shell 21322, the bottom shell 21321 covers the first mounting port 2132a and can be connected to the middle shell 21322 by means of glue, snap-fit, etc., so as to initially confine the speaker 10 within the second shell 2132. After the speaker 10 and the second shell 2132 are assembled, the first shell 2131 covers the second mounting port 2132b and can be connected to the middle shell 21322 by means of glue, snap-fit, etc., thus completing the assembly of the sound transmission shell 213.

[0030] refer to Figure 1 , Figure 3 and Figure 8In some embodiments, the first housing 2131 may be provided with an annular housing 21311 integrally formed with the first convex ring 213a1, and a sound guide 21312 disposed on the annular housing 21311. Multiple sound guides 21312 may be provided and communicate with the second sound outlet 11b1 of the speaker 10 for sound emission. The annular housing 21311 is further away from the second convex ring 213a2 than the first convex ring 213a1. The annular housing 21311 may have a mounting hole 2131a that matches the sound guide 21312, and is recessed inward around the axis of the second opening 21b to form a horn-shaped opening. The sound guide 21312 can be made of non-metallic materials such as plastic. The sound guide 21312 can be snapped and fixed in the mounting hole 2131a and cover part of the second sound outlet hole 11b1 of the speaker 10. It is exposed to the outside through the mounting hole 2131a. The surface of the sound guide 21312 exposed to the outside can form a smooth curved surface that is approximately continuous with the surface of the annular shell 21311 to improve the simplicity of the appearance. Each sound guide 21312 can have multiple sound-transmitting holes (not shown in the figure). The diameter of the sound-transmitting holes can be set to be relatively small to ensure the effective transmission of sound waves while preventing external foreign objects (such as earwax and dust) from entering the speaker 10. During the use of the headphones 20, the sound emitted by the second sound outlet 11b1 of the speaker 10 can be conducted to the outside through the sound guide 21312. Since the annular shell 21311 is recessed with the axis of the second opening 21b as the center, the sound transmitted by the sound guide 21312 can be conducted to the user's ear through the second opening 21b and the third opening 21c, and together with the first sound outlet 11a1 of the speaker 10, the sound is emitted towards the ear canal of the user's ear.

[0031] When the above speaker 10 is applied to an open-back headphone 20, such as an ear-clip headphone 20, the housing 11 has a perforation 11c extending from the first housing wall 11a to the second housing wall 11b. The ear canal is connected to the outside through the perforation 11c, thus meeting the requirements for wearing comfort. During the operation of the speaker 10, the first sound-emitting module 121 can emit sound directly toward the user's ear canal through the first sound outlet 11a1, and the second sound-emitting module 122 emits sound from the side away from the user's ear canal through the second sound outlet 11b1. The sound emitted by the second sound module 122 can be transmitted to the side where the first sound outlet 11a1 is located through the perforation 11c. By combining the crossover technology or noise reduction technology of the first sound module 121 and the second sound module 122, the sound quality of the open-back headphone 20 can be improved, thereby achieving a balance between wearing comfort and sound quality experience in the headphone 20.

[0032] In related technologies, the frequency division design of the first sound-emitting module 121 and the second sound-emitting module 122 refers to using electronic filtering circuits (such as passive devices like capacitors or inductors) or acoustic physical structures (such as the size of the sound guide tube, the damping of the sound-transmitting micropores, etc.) to divide the received full-frequency audio signal into different frequency bands according to a preset frequency division point, and drive the corresponding sound-emitting module 12 to emit sound independently. For example, the first sound-emitting module 121 is responsible for playing the mid-high frequency and high-frequency bands above the frequency division point, while the second sound-emitting module 122 is responsible for playing the mid-low frequency and low-frequency bands below the frequency division point; or the second sound-emitting module 122 is responsible for playing the mid-high frequency and high-frequency bands above the frequency division point, while the first sound-emitting module 121 is responsible for playing the mid-low frequency and low-frequency bands below the frequency division point. The specific implementation methods of the frequency division of the first sound-emitting module 121 and the second sound-emitting module 122 have been fully disclosed in the prior art and will not be elaborated here.

[0033] refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, the periphery of the housing 111 is provided with a first hole 111b communicating with the first mounting cavity 1141 and a second hole 111c communicating with the second mounting cavity 1142. The first hole 111b and the second hole 111c are spaced apart on the periphery of the housing 111. The speaker 10 may include a first tuning mesh 13 and a second tuning mesh 14. The first tuning mesh 13 covers the first hole 111b and can be fixedly connected to the housing 111 by means of adhesive bonding or the like. The second tuning mesh 14 covers the second hole 111c and can be fixedly connected to the housing 111 by means of adhesive bonding or the like. The first mounting cavity 1141 communicates with the cavity 21a through the first tuning mesh 13, and the second mounting cavity 1142 communicates with the cavity 21a through the second tuning mesh 14. In some embodiments, the first tuning mesh 13 and the second tuning mesh 14 can be made of porous acoustic materials such as non-woven fabric, fine woven mesh, and microporous membrane. The porous structure generates airflow damping to adjust the acoustic performance and prevent dust and small foreign objects from entering the housing 11, thus protecting the internal first sound-generating module 121 and the second sound-generating module 122 from damage.

[0034] refer to Figure 3 and Figure 4 In some embodiments, the sound waves generated by the first diaphragm 1211 enter the cavity 21a through the first hole 111b, and the sound waves generated by the second diaphragm 1221 enter the same cavity 21a through the second hole 111c. By designing the geometric structure of the internal reflective surface of the cavity 21a and combining it with acoustic experiments, the two sound waves can satisfy the phase matching condition on their propagation paths. By combining digital signal processing algorithms to jointly adjust the amplitude and phase frequency responses, constructive superposition of the two sound waves can be achieved, effectively improving the sound output efficiency of the target frequency band and thus improving the sound quality.

[0035] Specifically, taking the second mounting cavity 1142 and the second sound-emitting module 122 as examples, the second mounting cavity 1142 includes a first cavity 11421 and a second cavity 11422 that are connected in the thickness direction. The first cavity 11421 and the second cavity 11422 are respectively arranged around the hole wall of the through hole 11c. The second cavity 11422 is farther away from the second sound outlet hole 11b1 than the first cavity 11421, and the radial width of the second cavity 11422 is smaller than the radial width of the first cavity 11421. The second sound outlet hole 11b1 is opened in the cavity wall of the first cavity 11421.

[0036] Combination Figure 9 The second sound-generating module 122 may include a first magnet 1222 and a second magnet 1223. The first magnet 1222 is disposed around the wall of the through hole 11c, and the second magnet 1223 is disposed around the first magnet 1222 and spaced apart from the first magnet 1222. That is, the first magnet 1222 and the second magnet 1223 may be respectively ring-shaped and concentrically arranged. In some embodiments, the first magnet 1222 and the second magnet 1223 may be made of permanent magnet materials such as neodymium iron boron and samarium cobalt. In some embodiments, the second sound-generating module 122 may include a first pole piece 1224 and a second pole piece 1225 for concentrating the magnetic field to enhance its magnetic strength. The first pole piece 1224 is matched with the first magnet 1222 and disposed on the side of the first magnet 1222 facing away from the partition 113. The second pole piece 1225 is matched with the second magnet 1223 and disposed on the side of the second magnet 1223 facing away from the partition 113. The first magnet 1222, the second magnet 1223, the first pole piece 1224, the second pole piece 1225, and the partition 113 together form the second cavity 11422. In some embodiments, the first pole piece 1224 and the second pole piece 1225 may be made of soft magnetic materials such as low-carbon steel to guide and concentrate the magnetic field into the second cavity 11422 through the characteristics of the soft magnetic material, thereby improving the sensitivity and sound generation efficiency of the speaker. In some embodiments, the partition 113 may be made of the same material as the first pole piece 1224 or the second pole piece 1225 to further guide and concentrate the magnetic field.

[0037] In some embodiments, taking the second diaphragm 1221 as an example, the second diaphragm 1221 may include a diaphragm body 12211 and a voice coil 12212. The voice coil 12212 may be made of materials such as copper and can be fixed to the diaphragm body 12211 by means of bonding or other methods and protrude into the second cavity 11422.

[0038] Furthermore, such as Figure 9As shown, the second diaphragm 1221 may include a first fixing ring 12213 and a second fixing ring 12214. The first fixing ring 12213 is disposed on the side of the diaphragm 12211 near the hole wall of the perforation 11c, and the opposite sides of the first fixing ring 12213 can be connected to the diaphragm 12211 and the first electrode 1224 respectively by means of adhesive bonding. The second fixing ring 12214 is disposed on the side of the diaphragm 12211 away from the hole wall of the perforation 11c, and the opposite sides of the second fixing ring 12214 can be connected to the diaphragm 12211 and the second electrode 1225 respectively by means of adhesive bonding. The first fixing ring 12213 and the second fixing ring 12214 provide support for the diaphragm 12211 to prevent the diaphragm 12211 from shifting or misaligning during vibration.

[0039] Furthermore, the second diaphragm 1221 covers the first electrode 1224 and the second electrode 1225, and together with the second electrode 1225, forms a vibration cavity 122a, and a plurality of vent holes 122b communicating with the vibration cavity 122a. The vibration cavity 122a is connected to the second cavity 11422, and the plurality of vent holes 122b are connected to the second holes 111c in a one-to-one correspondence, so as to balance the air pressure inside the vibration cavity 122a with the external environment through the vent holes 122b and the second holes 111c. The specific structure of the first mounting cavity 1141 can refer to the specific structure of the second mounting cavity 1142, and the specific structure of the first sound-generating module 121 can refer to the specific structure of the second sound-generating module 122, which will not be described in detail here.

[0040] In related technologies, the Bluetooth receiving module of the earphone 20 receives digital audio signals transmitted by terminal devices such as mobile phones, and decodes and amplifies the digital audio signals, converting them into continuously changing alternating audio current. The alternating audio current is fed into the voice coil 12212 of the speaker 10, causing the voice coil 12212 in the second cavity 11422 to reciprocate under the action of electromagnetic force. Since the voice coil 12212 is fixedly connected to the diaphragm 12211, the vibration of the voice coil 12212 can synchronously drive the diaphragm 12211 to vibrate together. The reciprocating vibration of the diaphragm 12211 continuously compresses and disturbs the air in the second cavity 11422, causing the air to form sound waves with alternating compression and sparseness that radiate outward, thereby achieving sound production.

[0041] refer to Figure 4 , Figure 6 and Figure 7 In some embodiments, the housing 112 has a third cavity 1121 facing the first sound-emitting module 121, a first sound outlet 11a1 is formed in the cavity wall of the third cavity 1121, and at least a portion of the first diaphragm 1211 is housed within the third cavity 1121. In some embodiments, the housing 111 and the housing 112 can be connected by adhesive bonding or snap-fitting to form a mounting cavity 114.

[0042] Furthermore, the connection between the cavity wall of the first cavity 11421 and the cavity wall of the second cavity 11422 has an abutment platform 11423, the second sound-emitting module 122 abuts against and is confined within the abutment platform 11423, and at least a portion of the second diaphragm 1221 is housed within the first cavity 11421. In some embodiments, the end of the housing 112 away from the first sound outlet 11a1 may have an abutment portion 1122, and the first sound-emitting module 121 abuts against and is confined within the abutment portion 1122.

[0043] During the assembly of the first sound-emitting module 121, the second sound-emitting module 122, and the housing 11, the first sound-emitting module 121 can be fixed to one side of the partition 113 by means of adhesive bonding, and the second sound-emitting module 122 can be fixed to the other side of the partition 113 by means of adhesive bonding, etc. After the first sound-emitting module 121, the second sound-emitting module 122, and the partition 113 are assembled, the first sound-emitting module 121, the partition 113, the second sound-emitting module 122, and the housing 112 are complete. The first sound module 121 and the second sound module 122 are stacked sequentially in the thickness direction inside the housing 111. The second sound module 122 abuts against the abutment platform 11423 of the housing 11, and the abutment part 1122 of the cover 112 abuts against the first sound module 121 and is fixedly connected to the housing 11 by means of snap-fit ​​or adhesive. This fixes the first sound module 121 and the second sound module 122 in the housing 11, thereby preventing the first sound module 121 and the second sound module 122 from shaking in the mounting cavity 114.

[0044] refer to Figure 6 , Figure 7 and Figure 8 In some embodiments, the speaker 10 includes a cover plate 15, a circuit board 16 disposed on the cover plate 15, and a protective adhesive 17 connecting the circuit board 16 and the housing 111. The cover plate 15 is disposed on the side of the second housing wall 11b opposite to the first housing wall 11a, and the circuit board 16 is disposed on the side of the cover plate 15 opposite to the housing 111. The first sound-emitting module 121 and the second sound-emitting module 122 can be electrically connected to the circuit board 16. The protective adhesive 17 covers at least a portion of the circuit board 16 and the cover plate 15 and is fixedly connected to the housing 111. In some embodiments, the protective adhesive 17 can be made of materials such as epoxy resin or silicone adhesive. On the one hand, the protective adhesive 17 fixes the cover plate 15 and the circuit board 16 to the housing 11; on the other hand, it can form a protective coating on the electronic components and solder joints on the circuit board 16, achieving insulation, moisture-proof, rust-proof, and shock-absorbing effects, thereby improving the reliability of the speaker 10.

[0045] In some embodiments, the speaker 10 may include a data acquisition module 18 integrated on the circuit board 16. The data acquisition module 18 may have a built-in microphone for acquiring ambient sound and converting it into an electrical signal. The mainboard 221 of the earphone 20 may integrate a controller. The controller generates an inverse cancelling sound wave signal with the opposite phase and equal amplitude to the ambient sound based on the electrical signal of the ambient sound. The inverse cancelling sound wave signal is used to control the second sound-generating module 122 to generate corresponding cancelling sound waves. By weakening the ambient sound entering the ear canal through sound wave interference, an active noise cancellation effect is achieved. Specific implementation methods for active noise cancellation can employ mature existing technologies, which will not be elaborated here.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A loudspeaker, characterized in that, include: The housing has a first shell wall and a second shell wall disposed opposite to each other, and a perforation extending from the first shell wall to the second shell wall in the thickness direction; The first shell wall has a first sound outlet, and the second shell wall has a second sound outlet; as well as The sound-emitting module includes a first sound-emitting module and a second sound-emitting module. The first sound-emitting module is disposed inside the housing and surrounds the hole wall of the perforation and emits sound corresponding to the first sound outlet hole. The second sound-emitting module is disposed inside the housing and surrounds the hole wall of the perforation and emits sound corresponding to the second sound outlet hole.

2. The loudspeaker according to claim 1, characterized in that, The housing has a first mounting cavity and a second mounting cavity spaced apart in the thickness direction. The first sound-generating module is disposed in the first mounting cavity and has a first diaphragm facing the first sound outlet. The second sound-generating module is disposed in the second mounting cavity and has a second diaphragm facing the second sound outlet.

3. The loudspeaker according to claim 2, characterized in that, The housing has a first hole communicating with the first mounting cavity and a second hole communicating with the second mounting cavity on its periphery. The first hole and the second hole are spaced apart on the periphery of the housing. The speaker includes a first tuning mesh and a second tuning mesh. The first tuning mesh covers the first hole and is fixedly connected to the housing, and the second tuning mesh covers the second hole and is fixedly connected to the housing.

4. The loudspeaker according to claim 3, characterized in that, The housing includes a housing base, a housing cover, and a partition disposed within the housing base. The housing base and the housing cover together enclose a mounting cavity. The partition divides the mounting cavity into a first mounting cavity and a second mounting cavity. The housing base has a second housing wall, a first hole, and a second hole. The housing cover has the first housing wall. The second mounting cavity includes a first cavity and a second cavity that are connected in the thickness direction. The first cavity and the second cavity are respectively disposed around the hole wall of the perforation. The second cavity is further away from the second sound outlet hole than the first cavity, and the radial width of the second cavity is smaller than the radial width of the first cavity. The second sound outlet hole is opened in the cavity wall of the first cavity. The connection between the cavity wall of the first cavity and the cavity wall of the second cavity has an abutment platform. The second sound-emitting module abuts against and is confined within the abutment platform, and at least a portion of the second diaphragm is housed within the first cavity.

5. The loudspeaker according to claim 4, characterized in that, The housing has a first opening at the end opposite to the second sound outlet. The cover is annular and is inserted into the housing through the first opening and protrudes from the first opening. The first sound-generating module, the partition, the second sound-generating module, and the cover are stacked sequentially in the thickness direction. The cover has a third cavity facing the first sound-generating module. The first sound outlet is opened in the cavity wall of the third cavity. At least a portion of the first diaphragm is housed in the third cavity.

6. The loudspeaker according to claim 4, characterized in that, The first sound outlet is configured as a plurality of holes and is evenly spaced around the perforation wall on the first shell wall; the second sound outlet is configured as a plurality of holes and is evenly spaced around the perforation wall on the second shell wall.

7. The loudspeaker according to claim 4, characterized in that, The speaker includes a cover plate, a circuit board disposed on the cover plate, and a protective adhesive connecting the circuit board and the housing. The cover plate is disposed on the side of the first housing wall opposite to the second housing wall, and the circuit board is disposed on the side of the cover plate opposite to the housing. The first sound-emitting module and the second sound-emitting module are electrically connected to the circuit board, respectively. The protective adhesive covers at least a portion of the circuit board and the cover plate and is fixedly connected to the housing.

8. An earphone, characterized in that, The device includes a housing, a battery assembly and a speaker disposed within the housing. The speaker includes a housing and a sound-emitting module. The housing has a first housing wall and a second housing wall disposed opposite to each other, and a through hole extending from the first housing wall to the second housing wall in the thickness direction. The first housing wall has a first sound outlet, and the second housing wall has a second sound outlet. The sound-emitting module includes a first sound-emitting module and a second sound-emitting module. The first sound-emitting module is disposed within the housing and surrounds the hole wall of the through hole and emits sound corresponding to the first sound outlet. The second sound-emitting module is disposed within the housing and surrounds the hole wall of the through hole and emits sound corresponding to the second sound outlet. The battery assembly is used to power the first sound-emitting module and the second sound-emitting module. The housing has a cavity, a second opening and a third opening. The speaker is housed within the cavity. The second opening communicates with the third opening and is disposed corresponding to the through hole. The second opening and the third opening are respectively connected to the outside.

9. The earphone according to claim 8, characterized in that, The housing includes an ear hook, a battery compartment connected to one end of the ear hook, and a sound transmission shell connected to the other end of the ear hook. The battery assembly is disposed within the battery compartment, and the speaker is disposed within the sound transmission shell. The ear hook has a wiring channel, and the battery assembly is electrically connected to the speaker through the wiring channel. The earphone is worn on the user's ear so that the battery compartment is located on one side of the ear and the sound transmission shell is located on the other side of the ear. The sound transmission shell includes a first shell and a second shell connected to each other. The first shell is connected to the ear hook, and the first shell and the second shell together enclose the cavity. At least one of the first shell and the second shell has a protruding ring passing through the perforation. The shell extends around the protruding ring, and the protruding ring has a second opening and a third opening.

10. The earphone according to claim 8, characterized in that, The housing includes a housing base, a housing cover, and a partition plate disposed within the housing base. The housing base and the housing cover together enclose a mounting cavity. The partition plate divides the mounting cavity into a first mounting cavity and a second mounting cavity. The first sound-emitting module is disposed within the first mounting cavity and has a first diaphragm facing the first sound outlet. The second sound-emitting module is disposed within the second mounting cavity and has a second diaphragm facing the second sound outlet. The housing base has a second housing wall, and the housing cover has a first housing wall. A first hole communicating with the first mounting cavity and a second hole communicating with the second mounting cavity are opened on the periphery of the housing base. The first hole and the second hole are spaced apart on the periphery of the housing base. The loudspeaker includes a first tuning mesh and a second tuning mesh. The first tuning mesh covers the first hole and is fixedly connected to the housing base. The second tuning mesh covers the second hole and is fixedly connected to the housing base. The first mounting cavity communicates with the cavity via the first tuning mesh, and the second mounting cavity communicates with the cavity via the second tuning mesh.

Images