Waveguide tube, loudspeaker assembly and electronic equipment

Abstract

The utility model relates to a waveguide tube, a loudspeaker assembly and electronic equipment. The waveguide tube comprises a boss, a sound inlet, a sound guide channel and a sound outlet, the sound inlet, the sound guide channel and the sound outlet are sequentially communicated, the sound inlet is used for transmitting sound waves into the sound guide channel, the sound outlet is used for transmitting the sound waves out of the sound guide channel, and the boss is fixed to the inner wall of the sound guide channel and extends in the direction from the sound inlet to the sound outlet. The loudspeaker assembly provided by the embodiment of the utility model has similar sound wave radiation angles at low frequency and high frequency, so that the use experience of a user can be improved.

Description

Technical Field

[0001] This application relates to the field of audio technology, and particularly to a waveguide, a speaker assembly, and an electronic device. Background Art

[0002] The sound waves radiated by a speaker have a certain directivity. When the frequency of the sound waves is relatively low, the directivity of the sound waves is weak and the covered angle is large. When the frequency of the sound waves is relatively high, the directivity of the sound waves is strong and the covered angle is small, so that the speaker cannot obtain an effect with a similar sound wave radiation angle at low frequencies and high frequencies. When the user moves within the area of the sound wave radiation angle, it is difficult to obtain an energy-balanced listening effect at low frequencies and high frequencies, which limits the user's listening area. Summary of the Utility Model

[0003] Embodiments of this application provide a waveguide, a speaker assembly, and an electronic device. Through the structural design of the waveguide, the speaker assembly has similar sound wave radiation angles at low frequencies and high frequencies, which is beneficial to improving the user experience.

[0004] In a first aspect, embodiments of this application provide a waveguide. The waveguide includes a boss and a sound inlet, a sound guiding channel, and a sound outlet that are sequentially connected. The sound inlet is used for sound waves to enter the sound guiding channel, and the sound outlet is used for the sound waves to exit the sound guiding channel. The boss is fixed to the inner wall of the sound guiding channel and extends along the direction from the sound inlet to the sound outlet. Exemplarily, the sound inlet and the sound outlet can be located on opposite sides of the sound guiding channel. The number of bosses can be one, two, three, four, five, etc., and embodiments of this application do not limit the number of bosses.

[0005] In embodiments of this application, by providing a boss on the inner wall of the sound guiding channel and the boss extending along the direction from the sound inlet to the sound outlet, both the surface of the boss and the inner wall of the sound guiding channel where no boss is provided can reflect sound waves, and the transmission distances of the sound waves are different, which is beneficial to expanding the radiation angle of high-frequency sound waves and weakening the directivity of high-frequency sound waves, so that the radiation angle of high-frequency sound waves is close to that of low-frequency sound waves. Regardless of the frequency of the sound waves, when the user moves within the area of the sound wave radiation angle, an energy-balanced listening effect can be obtained, which is beneficial to improving the user experience.

[0006] In a possible implementation, the size of the boss in a first direction is greater than or equal to 2 mm, and the first direction is perpendicular to the inner wall of the sound guiding channel. The size of the boss in the first direction can be understood as the height of the boss. By setting the size of the boss in the first direction to be greater than or equal to 2 mm in embodiments of this application, it is beneficial to expand the radiation angle of high-frequency sound waves and weaken the directivity of high-frequency sound waves. When the size of the boss in the first direction is less than 2 mm, the frequency of the sound waves scattered by the boss is not within the audible sound frequency range of the human ear.

[0007] In a possible implementation manner, the boss includes a first section and a second section. The first section is closer to the sound inlet than the second section. The dimension of the first section in the first direction is different from the dimension of the second section in the first direction. In the embodiment of the present application, by setting the dimension of the first section in the first direction to be different from the dimension of the second section in the first direction, the flexibility of setting the dimension of the boss in the first direction is increased, and the dimension of the boss in the first direction can be flexibly set according to different application requirements, which is beneficial to the use of the waveguide in different application scenarios.

[0008] In a possible implementation manner, the dimension of the first section in the first direction is greater than the dimension of the second section in the first direction. In the embodiment of the present application, by setting the dimension of the first section close to the sound inlet in the first direction to be greater than the dimension of the second section far from the sound inlet in the first direction, it is beneficial to scatter sound waves, and mainly scatter low-frequency sound waves. In addition, by setting the dimension of the first section close to the sound inlet in the first direction to be greater than the dimension of the second section far from the sound inlet in the first direction, it can prevent the user's finger or other objects from reaching into the sound inlet and damaging the speaker when the speaker assembly is exposed. In other embodiments, the dimension of the first section in the first direction may also be smaller than the dimension of the second section in the first direction, or the dimension of the first section in the first direction may also be equal to the dimension of the second section in the first direction, that is, in the direction from the sound inlet to the sound outlet, the dimension of the boss in the first direction is the same, and the embodiment of the present application does not limit this.

[0009] In a possible implementation manner, the number of the bosses is at least two. At least two bosses are arranged at intervals in the second direction. The dimensions of at least two bosses in the first direction are the same. The second direction is set at an angle with the first direction and at an angle with the direction from the sound inlet to the sound outlet. In the embodiment of the present application, by setting the dimensions of at least two bosses in the first direction to be the same, the structure is simple, the arrangement regularity of multiple bosses is good, and they are relatively neat, which can meet the visual requirements.

[0010] In a possible implementation manner, the number of the bosses is at least two. At least two bosses are arranged at intervals in the second direction. The dimensions of at least two bosses in the first direction are different. The second direction is set at an angle with the first direction and at an angle with the direction from the sound inlet to the sound outlet. In the embodiment of the present application, by setting the dimensions of at least two bosses in the first direction to be different, it can scatter sound waves in a wider frequency range, increasing irregularity, randomness and disorder. The dimensions of multiple bosses in the first direction can be designed according to different application requirements, with high flexibility and wide application range, and can be applied to a variety of application scenarios.

[0011] In a possible implementation manner, the sound guiding channel includes an intermediate region and edge regions located on opposite sides of the intermediate region. The intermediate region and the edge regions are both provided with the bosses. The size of the boss in the intermediate region in the first direction is greater than the size of the boss in the edge region in the first direction. In the embodiments of the present application, by setting the size of the boss in the intermediate region in the first direction to be greater than the size of the boss in the edge region in the first direction, the sound waves in the intermediate region can be effectively scattered, which is beneficial to increasing the radiation angle of high-frequency sound waves, making the radiation angle of high-frequency sound waves close to that of low-frequency sound waves, so as to improve the user's listening experience. In other embodiments, the size of the boss in the intermediate region in the first direction may also be less than or equal to the size of the boss in the edge region in the first direction.

[0012] In a possible implementation manner, the sound guiding channel includes a first region and a second region. The first region and the second region are both provided with the bosses, and the bosses in the first region and the bosses in the second region are symmetrically arranged. The symmetrical arrangement of the bosses in the first region and the bosses in the second region can be understood as that the number, shape, and size of the bosses in the first region are the same as those in the second region, and the bosses at symmetrical positions in the first region and the second region are exactly the same. In the embodiments of the present application, by setting the bosses in the first region and the bosses in the second region to be symmetrically arranged, a symmetrical sound effect can be obtained in the listening area, improving the user's experience. When the user moves in the listening area, the difference in the listening effect is large and the disorder is strong, which affects the user's experience.

[0013] In other embodiments, the bosses in the first region and the bosses in the second region may also be asymmetrically arranged, and the embodiments of the present application do not limit this and can be set as needed.

[0014] In a possible implementation manner, the boss includes a bottom surface and a top surface arranged opposite to each other. The bottom surface is fixed to the inner wall of the sound guiding channel, and there is a gap between the top surface and the inner wall of the sound guiding channel. The inner wall of the sound guiding channel is not only the region where the bottom surface is fixed, but also includes other regions, such as the region opposite to the region where the bottom surface is fixed. The top surface and the region opposite to the region where the bottom surface is fixed are arranged at intervals so that the top surface can reflect sound waves, which is beneficial to increasing the radiation angle of high-frequency sound waves.

[0015] In a possible implementation manner, one end of the boss is located at the sound inlet, and the other end of the boss is located at the sound outlet. In the embodiments of the present application, by setting one end of the boss at the sound inlet and the other end of the boss at the sound outlet, it is beneficial to make full use of the space of the sound guiding channel and is beneficial to fully scattering the sound waves.

[0016] In a possible implementation manner, the extension length of the boss in the direction from the sound inlet to the sound outlet is greater than or equal to 20 mm and less than or equal to 500 mm. By setting the extension length of the boss to be greater than or equal to 20 mm and less than or equal to 500 mm in the embodiments of the present application, it is beneficial to fully scatter the sound waves and is beneficial to expanding the radiation angle of high-frequency sound waves.

[0017] In a possible implementation manner, the boss is strip-shaped. The strip-shaped boss has a regular shape and can have a smooth surface, which is beneficial to the transmission of sound waves and avoids the obstruction of sound waves by other irregular bosses. The boss can also be in the shape of a semi-cylindrical shape, etc. The embodiments of the present application do not limit the specific shape of the boss.

[0018] In a possible implementation manner, the number of the bosses is at least two. At least two bosses are arranged at intervals in the second direction. In the direction from the sound inlet to the sound outlet, the distance between adjacent two bosses is the same. The second direction is arranged at an angle with the first direction and is arranged at an angle with the direction from the sound inlet to the sound outlet. By setting the distance between adjacent two bosses to be the same in the direction from the sound inlet to the sound outlet in the embodiments of the present application, the structure is simple, the arrangement regularity of multiple bosses is good, and it is relatively neat, which can meet the visual requirements.

[0019] In a possible implementation manner, the number of the bosses is at least two. At least two bosses are arranged at intervals in the second direction. In the direction from the sound inlet to the sound outlet, the distance between adjacent two bosses is different. The second direction is arranged at an angle with the first direction and is arranged at an angle with the direction from the sound inlet to the sound outlet. By setting the distance between adjacent two bosses to be different in the direction from the sound inlet to the sound outlet in the embodiments of the present application, the irregularity, randomness and disorder are increased. The distance between adjacent two bosses in the direction from the sound inlet to the sound outlet can be designed according to different application requirements, with high flexibility and wide application range, and can be applicable to a variety of application scenarios.

[0020] In a possible implementation manner, the distance between adjacent two bosses at the sound inlet is less than the distance between them at the sound outlet. It can be understood that the sound wave energy generated by the speaker is more concentrated at the sound inlet. By setting the distance between adjacent two bosses at the sound inlet to be less than the distance between them at the sound outlet in the embodiments of the present application, it is beneficial to scatter the sound waves in a larger range. In other embodiments, the distance between adjacent two bosses at the sound inlet can also be greater than or equal to the distance between them at the sound outlet.

[0021] In a possible implementation, the number of the bosses is at least three. At least three bosses are arranged at intervals along a second direction. A groove is formed between two adjacent bosses. Sizes of different grooves in the second direction are the same. The second direction is arranged at an angle with the first direction and is arranged at an angle with the direction from the sound inlet to the sound outlet. The size of the groove in the second direction can be understood as the width of the groove. In the embodiment of the present application, by setting the sizes of different grooves in the second direction to be the same, the structure is simple, the arrangement regularity of multiple bosses and different grooves is good, and it is relatively neat, which can meet the visual requirements.

[0022] In a possible implementation, the number of the bosses is at least three. At least three bosses are arranged at intervals along a second direction. A groove is formed between two adjacent bosses. Sizes of different grooves in the second direction are different. The second direction is arranged at an angle with the first direction and is arranged at an angle with the direction from the sound inlet to the sound outlet. In the embodiment of the present application, by setting the sizes of different grooves in the second direction to be different, the non-uniformity, irregularity, randomness and disorder are increased, the frequency range of scattering can be improved, that is, the sound waves in a relatively wide frequency range can be scattered. The sizes of different grooves in the second direction can be designed according to different application requirements, with high flexibility and wide application range, and it can be applied to a variety of application scenarios.

[0023] In a possible implementation, the sound guiding channel includes a middle region and edge regions on opposite sides of the middle region. The groove in the middle region is a first groove, and the groove in the edge region is a second groove. The size of the first groove in the second direction is smaller than the size of the second groove in the second direction. It can be understood that the sound wave energy generated by the speaker is relatively concentrated at the sound inlet. By setting the size of the first groove in the second direction to be smaller than the size of the second groove in the second direction, it is beneficial to improve the scattering effect of the waveguide on the sound waves. In other embodiments, the size of the first groove in the second direction can also be greater than or equal to the size of the second groove in the second direction.

[0024] In a possible implementation, the sound guiding channel includes an installation area, and the bosses are located in the installation area. The ratio of the sum of the sizes of the bosses in the second direction in the installation area to the size of the installation area in the second direction is greater than or equal to 20% and less than or equal to 80%. The second direction is arranged at an angle with the first direction and is arranged at an angle with the direction from the sound inlet to the sound outlet. In the embodiment of the present application, by setting the ratio of the sum of the sizes of the bosses in the second direction in the installation area to the size of the installation area in the second direction to be greater than or equal to 20% and less than or equal to 80%, the sizes of the bosses in the second direction and the spacing of multiple bosses are reasonably configured, which is beneficial to ensuring the scattering effect of the waveguide on the sound waves.

[0025] In a possible implementation, the cross-sectional area of the sound guiding channel at the sound inlet is smaller than the cross-sectional area of the sound guiding channel at the sound outlet. Exemplarily, the cross-sectional area of the sound guiding channel can gradually increase from the sound inlet to the sound outlet, or a section of the cross-sectional area of the sound guiding channel can remain unchanged. The sound guiding channel can be in a horn shape. By setting the cross-sectional area of the sound guiding channel at the sound inlet to be smaller than the cross-sectional area of the sound guiding channel at the sound outlet in the embodiments of the present application, it is beneficial to restrict the transmission direction of sound waves. When the difference between the cross-sectional area of the sound guiding channel at the sound inlet and the cross-sectional area of the sound guiding channel at the sound outlet is large, the sound wave radiation angle is large and the sound wave directivity is weak. When the difference between the cross-sectional area of the sound guiding channel at the sound inlet and the cross-sectional area of the sound guiding channel at the sound outlet is small, the sound wave radiation angle is small and the sound wave directivity is strong.

[0026] In a second aspect, the present application provides a loudspeaker assembly, including a loudspeaker and the waveguide described in any one of the foregoing embodiments. The sound outlet of the loudspeaker is communicated with the sound inlet, and the sound waves generated by the loudspeaker can be introduced into the sound guiding channel from the sound inlet and transmitted out of the sound guiding channel through the sound outlet. The loudspeaker can be a moving coil loudspeaker, a capacitive loudspeaker, a piezoelectric loudspeaker, an electromagnetic loudspeaker, or an electroionic loudspeaker, etc. The embodiments of the present application do not limit the type of the loudspeaker.

[0027] In a possible implementation, the loudspeaker assembly includes a connecting member, and the connecting member fixedly connects the waveguide and the loudspeaker. The material of the connecting member and the waveguide can be the same or different. For example, the connecting member can be made of plastic and the waveguide can be made of metal, or both the connecting member and the waveguide are made of metal, etc. The embodiments of the present application do not limit this and can be set according to needs.

[0028] In a possible implementation, the connecting member and the waveguide are of an integrally formed structure. It can be understood that the integrally formed structure of the connecting member and the waveguide avoids the assembly and fixing process and has high structural strength. In addition, it avoids the existence of gaps between the connecting member and the waveguide, resulting in sound wave leakage. In other embodiments, the connecting member and the waveguide can also be of a split structure and assembled and fixed.

[0029] In a third aspect, the present application provides an electronic device, including a housing and the loudspeaker assembly described in any one of the foregoing embodiments, and the loudspeaker assembly is located inside the housing. The electronic device can be a mobile phone, a tablet computer, a laptop computer, a vehicle-mounted device, a wearable device, a headset or a speaker, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings required to be used in the embodiments of the present application or the background art will be described below.

[0031] Figure 1 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

[0032] Figure 2 It is a schematic structural diagram of the radiation angle of low-frequency sound waves and the radiation angle of high-frequency sound waves in the prior art;

[0033] Figure 3 It is a sound wave directivity diagram in the prior art;

[0034] Figure 4 It is a schematic structural diagram of the radiation angle of low-frequency sound waves and the radiation angle of high-frequency sound waves in an embodiment of the present application;

[0035] Figure 5 It is a sound wave directivity diagram in an embodiment of the present application;

[0036] Figure 6 It is Figure 1 A schematic structural diagram of a speaker assembly shown;

[0037] Figure 7 It is Figure 6 A schematic structural diagram of the speaker assembly from another angle shown;

[0038] Figure 8 It is Figure 6 A schematic structural diagram of the speaker assembly from another angle shown;

[0039] Figure 9 It is Figure 7 A schematic exploded view of the speaker assembly shown;

[0040] Figure 10 It is Figure 9 A schematic structural diagram of the waveguide from another angle shown;

[0041] Figure 11 It is Figure 7 A cross-sectional view of the speaker assembly along A-A shown;

[0042] Figure 12 It is Figure 7 A cross-sectional view of the speaker assembly along B-B shown;

[0043] Figure 13 It is a schematic structural diagram of a waveguide provided by an embodiment of the present application;

[0044] Figure 14 It is a schematic structural diagram of a waveguide provided by an embodiment of the present application;

[0045] Figure 15 It is a schematic structural diagram of a waveguide provided by an embodiment of the present application. Specific embodiments

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0047] It should be understood that the "first", "second", etc. used in the present application are only for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0048] In the description of the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing 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 limitation to the present application.

[0049] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a contact connection or an integral connection; for those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0050] As Figure 1 shown, Figure 1 is a schematic structural diagram of an electronic device 100. The electronic device 100 can be a mobile phone, a tablet computer, a laptop computer, a vehicle-mounted device, a wearable device, a headset or a speaker, etc. In the embodiments of the present application, the electronic device 100 is taken as an example of a speaker for description. The speaker can be a bar speaker, and the bar speaker can be connected to a TV to play the sound of the TV and improve the sound quality effect when the user watches the TV.

[0051] The electronic device 100 may include a housing 10 and a speaker assembly 20. The speaker assembly 20 is located inside the housing 10, and the housing 10 can protect the internal speaker assembly 20. The housing 10 can be made of materials such as plastic or metal. The speaker assembly 20 can convert an electrical signal into a sound signal, and guide and transmit the sound signal to the user, so that the user can hear the sound.

[0052] The housing 10 may be provided with a power key 11, a volume down key 12, and a volume up key 13 at intervals. When the user uses the electronic device 100, the power key 11 can be operated according to the needs to turn on or off the speaker assembly 20. When the user operates the power key 11 to turn on the speaker assembly 20, the volume can be lowered or raised by operating the volume down key 12 and the volume up key 13 to obtain the volume required by the user and meet the user's usage requirements.

[0053] The electronic device 100 may include a first grille 30 and a second grille 40. The first grille 30 can be used to protect the speaker below the first grille 30 and facing the first grille 30, and the second grille 40 can be used to protect the speaker behind the second grille 40 and facing the second grille 40. It can be understood that the electronic device 100 may also include other speakers other than the speaker assembly 20. The first grille 30 can be made of sound-permeable cloth material, and the second grille 40 can be an iron net and is provided with sound-permeable holes.

[0054] Figure 1 The electronic device 100 in is only schematically shown. The dimensions, shapes, positions, structures, etc. of the housing 10, the speaker assembly 20, the power key 11, the volume down key 12, and the volume up key 13 can be set as needed. The specific structure of the electronic device 100 is not limited in this application, and the electronic device 100 may also include other structural components.

[0055] Such as Figure 2 And Figure 3 As shown in Figure 2 is a schematic structural diagram of the radiation angle of low-frequency sound waves and the radiation angle of high-frequency sound waves in the prior art, Figure 3 is the directivity diagram of sound waves in the prior art. The sound waves radiated by the speaker of the speaker assembly have a certain directivity. When the frequency is relatively low, the directivity of the sound waves is weak and the angle covered by the sound waves is large. When the frequency is relatively high, the directivity of the sound waves is strong and the angle covered by the sound waves is small, so that the effect of having similar sound wave radiation angles cannot be obtained at low frequencies and high frequencies. In the prior art, the radiation angle θ1 of the low-frequency sound waves is greater than the radiation angle α1 of the high-frequency sound waves, and the difference between the radiation angle θ1 of the low-frequency sound waves and the radiation angle α1 of the high-frequency sound waves is relatively large.

[0056] Such as Figure 4 And Figure 5 As shown in Figure 4 is a schematic structural diagram of the radiation angle of low-frequency sound waves and the radiation angle of high-frequency sound waves in the embodiment of the present application, Figure 5This is the acoustic directivity pattern in the embodiments of the present application. In the embodiments of the present application, the radiation angle θ2 of the low-frequency sound wave of the speaker assembly 20 is greater than the radiation angle α2 of the high-frequency sound wave, but the difference between the radiation angle θ2 of the low-frequency sound wave and the radiation angle α2 of the high-frequency sound wave is small. Compared with the prior art, in the embodiments of the present application, the radiation angle α2 of the high-frequency sound wave can be increased to reduce the difference between the radiation angle θ2 of the low-frequency sound wave and the radiation angle α2 of the high-frequency sound wave, so that the speaker assembly 20 has similar acoustic radiation angles at low frequencies and high frequencies. The speaker assembly 20 in the embodiments of the present application can obtain a balanced sound listening effect at low frequencies and high frequencies, improving the user experience.

[0057] As Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, Figure 6 is Figure 1 a schematic structural diagram of a speaker assembly 20 as shown, Figure 7 is Figure 6 a schematic structural diagram of the speaker assembly 20 from another angle as shown, Figure 8 is Figure 6 a schematic structural diagram of the speaker assembly 20 from another angle as shown, Figure 9 is Figure 7 a schematic exploded view of the speaker assembly 20 as shown.

[0058] The speaker assembly 20 may include a speaker 21 and a waveguide 22. The speaker 21 may include a sound outlet 211. The sound outlet 211 of the speaker 21 communicates with the sound inlet 222 of the waveguide 22, and the sound wave generated by the speaker 21 can enter the waveguide 22 and be transmitted to the space outside the waveguide 22 through the waveguide 22.

[0059] In some embodiments, the speaker 21 may include a diaphragm 212. The diaphragm 212 vibrates to generate sound, and the sound outlet 211 is located where the diaphragm 212 is. It can be understood that the shape of the sound inlet 222 of the waveguide 22 can match the shape of the diaphragm 212 when it vibrates. There is a gap between the diaphragm 212 and the sound inlet 222 to prevent the sound inlet 222 from restricting the vibration of the diaphragm 212, and the sound wave generated by the vibration of the edge area of the diaphragm 212 can enter the sound inlet 222 through the gap between the diaphragm 212 and the sound inlet 222. The speaker 21 may be a dynamic speaker, a capacitive speaker, a piezoelectric speaker, an electromagnetic speaker, or an electroionic speaker, etc. The embodiments of the present application do not limit the type of the speaker 21.

[0060] In some embodiments, the speaker assembly 20 may include a connecting member 23 for fixedly connecting the speaker 21 and the waveguide 22. Exemplarily, the connecting member 23 may include a first mounting portion 231 and a second mounting portion 232 that are fixedly connected and communicate with each other. The internal cavity of the first mounting portion 231 matches the speaker 21, and the internal cavity of the second mounting portion 232 matches the waveguide 22. The speaker 21 may be fixed within the first mounting portion 231, and the waveguide 22 may be fixed within the second mounting portion 232. It can be understood that the speaker 21 is fixed to the side where the sound inlet 222 of the waveguide 22 is located. A gasket may be provided between the speaker 21 and the first mounting portion 231, so that the sound waves of the speaker 21 are constrained within the waveguide 22 and transmitted within the waveguide 22, and are transmitted to the external space through the sound outlet 223 of the waveguide 22, preventing sound wave leakage.

[0061] It can be understood that the first mounting portion 231 and the second mounting portion 232 may be an integrally formed structure, which avoids the assembly and fixing process and has high structural strength. In other embodiments, the first mounting portion 231 and the second mounting portion 232 may also be a split structure and assembled and fixed.

[0062] In some embodiments, when the speaker 21 is mounted on the connecting member 23, the speaker 21 may be tilted upward (refer to the subsequent Figure 12 ). It can be understood that when applying the speaker assembly 20, if the user's listening position is higher than the speaker assembly 20, for better listening effect, the speaker 21 may be set to tilt upward. In other application scenarios, the speaker 21 may also be set to tilt downward or not tilt.

[0063] It can be understood that the connecting member 23 and the waveguide 22 may be an integrally formed structure, which avoids the assembly and fixing process, has high structural strength, and in addition, avoids gaps between the connecting member 23 and the waveguide 22, resulting in sound wave leakage. In other embodiments, the connecting member 23 and the waveguide 22 may also be a split structure and assembled and fixed.

[0064] In some embodiments, the connecting member 23 may include a positioning portion 233 and a mounting portion 234. When the speaker assembly 20 is mounted on the electronic device 100, the positioning portion 233 is used for positioning the speaker assembly 20 with the structural member on the electronic device 100, realizing accurate and rapid installation of the speaker assembly 20. The positioning portion 233 may be a protrusion, a groove, or a through hole, and the embodiments of the present application do not limit this. The mounting portion 234 may be provided with a mounting hole 235. When the speaker assembly 20 is mounted on the electronic device 100, screws or bolts may be installed in the mounting hole 235 to fix the speaker assembly 20 to the structural member of the electronic device 100.

[0065] In some embodiments, the material of the connecting member 23 and the waveguide 22 may be the same or different. For example, the connecting member 23 may be made of plastic, the waveguide 22 may be made of metal, or both the connecting member 23 and the waveguide 22 may be made of metal, etc. The embodiments of the present application do not limit this and can be set as needed.

[0066] It can be understood that the connecting member 23 in the embodiments of the present application is only schematically shown. The present application does not limit the specific structure, shape, size, etc. of the connecting member 23 and can be set as needed.

[0067] The speaker assembly 20 may include a seal 24. The seal 24 may be a gasket or the like. When the speaker assembly 20 is installed in the electronic device 100, the seal 24 may be located between the connecting member 23 and the structural member on the electronic device 100 or between the waveguide 22 and the structural member on the electronic device 100. By providing the seal 24 in the embodiments of the present application, the speaker assembly 20 is sealed from the structural members inside the electronic device 100, preventing the sound waves of the speaker 21 from affecting the performance of other structural members inside the electronic device 100.

[0068] Refer to Figure 8 And Figure 9 , the waveguide 22 may include a sound guiding channel 221, a sound inlet 222, a sound outlet 223, and a boss 224. The sound inlet 222, the sound guiding channel 221, and the sound outlet 223 are sequentially connected to form a space for sound wave transmission. Exemplarily, the sound inlet 222 and the sound outlet 223 may be located on opposite sides of the sound guiding channel 221. The boss 224 is fixed to a part of the inner wall 2211 of the sound guiding channel 221 and extends in the direction from the sound inlet 222 to the sound outlet 223. The number of bosses 224 may be one, two, three, four, or five, etc. When the number of bosses 224 is multiple, the multiple bosses 224 are spaced apart on the inner wall of the sound guiding channel 221. A groove is formed between adjacent bosses 224.

[0069] As Figure 10 And Figure 11 Shown in Figure 10 Is Figure 9 Another perspective structural schematic diagram of the waveguide 22 shown in Figure 11 Is Figure 7A cross-sectional view of the shown speaker assembly 20 along A-A. In some embodiments, the cross-sectional area of the sound guiding channel 221 at the sound inlet 222 is smaller than the cross-sectional area of the sound guiding channel 221 at the sound outlet 223. Exemplarily, the cross-sectional area of the sound guiding channel 221 can gradually increase from the sound inlet 222 to the sound outlet 223, or, a section of the cross-sectional area of the sound guiding channel 221 can remain unchanged. The sound guiding channel 221 can be in a horn shape. Exemplarily, the opening angle of the waveguide 22 is γ, and γ can be greater than or equal to 40° and less than or equal to 140°, for example, γ can be 60°, 80°, 100° or 120°, etc. The opening angle γ of the waveguide 22 affects the radiation angle of low-frequency sound waves. In the embodiments of the present application, setting the cross-sectional area of the sound guiding channel 221 at the sound inlet 222 to be smaller than the cross-sectional area of the sound guiding channel 221 at the sound outlet 223 is beneficial to restricting the transmission direction of sound waves. When the difference between the cross-sectional area of the sound guiding channel 221 at the sound inlet 222 and the cross-sectional area of the sound guiding channel 221 at the sound outlet 223 is large, and the opening angle γ of the waveguide 22 is large, the sound wave radiation angle is large and the sound wave directivity is weak. When the difference between the cross-sectional area of the sound guiding channel 221 at the sound inlet 222 and the cross-sectional area of the sound guiding channel 221 at the sound outlet 223 is small, and the opening angle γ of the waveguide 22 is small, the sound wave radiation angle is small and the sound wave directivity is strong.

[0070] As Figure 10 shown, the waveguide 22 can include a connected first pipe body 227 and a second pipe body 228. The sound inlet 222 is located at one end of the first pipe body 227 away from the second pipe body 228, the sound outlet 223 is located at one end of the second pipe body 228 away from the first pipe body 227, and the sound guiding channel 221 penetrates through the first pipe body 227 and the second pipe body 228. The cross-sectional dimension of the first pipe body 227 can be smaller than the cross-sectional dimension of the second pipe body 228.

[0071] In other embodiments, the cross-sectional area of the sound guiding channel 221 can remain unchanged from the sound inlet 222 to the sound outlet 223, and the embodiments of the present application do not limit the specific structure of the sound guiding channel 221, etc.

[0072] In some embodiments, the inner wall of the sound guiding channel 221 can be a smooth inner wall, which is beneficial to the transmission of sound waves and avoids hindering the transmission of sound waves when the inner wall of the sound guiding channel 221 is not smooth.

[0073] In some embodiments, the cross-section of the waveguide 22 can be rectangular, circular or racetrack-shaped, etc., and the embodiments of the present application do not limit this. Figure 8Taking the cross-section of the waveguide 22 as a rectangle as an example, the waveguide 22 with a rectangular cross-section may include four inner walls. The boss 224 may be provided on one inner wall of the waveguide 22, or on two adjacent inner walls of the waveguide 22, or on two opposite inner walls of the waveguide 22, or on three or four inner walls of the waveguide 22. It can be understood that when the bosses 224 are provided on two opposite inner walls of the waveguide 22, the bosses 224 on the two opposite inner walls may be arranged correspondingly or staggeredly. In the embodiments of the present application, the number, size, position, etc. of the bosses 224 on each inner wall are not limited.

[0074] In some embodiments, the boss 224 is in a long strip shape. The long strip-shaped boss 224 has a regular shape and may have a smooth surface, which is beneficial to the transmission of sound waves and avoids the obstruction of sound waves by other irregularly shaped bosses. The boss 224 may also be in the shape of a semi-cylindrical shape, etc. In the embodiments of the present application, the specific shape of the boss 224 is not limited.

[0075] Refer to Figure 8 , in some embodiments, the boss 224 may include a bottom surface 2241 and a top surface 2242 arranged oppositely. The bottom surface 2241 is fixed to the inner wall 2211 of the sound guiding channel 221, and there is a gap between the top surface 2242 and the inner wall of the sound guiding channel 221. The inner wall of the sound guiding channel 221 is not only the area where the bottom surface 2241 is fixed, but also includes other areas, such as the area opposite to the area where the bottom surface 2241 is fixed. The top surface 2242 is arranged at an interval from the area where the bottom surface 2241 is fixed, so that the top surface 2242 can reflect sound waves, which is beneficial to increasing the radiation angle of high-frequency sound waves. The top surface 2242 may be a plane or a curved surface.

[0076] It can be understood that the boss 224 may also include a side surface 2243, and the side surface 2243 is connected between the bottom surface 2241 and the top surface 2242. The side surface 2243 can also reflect sound waves, which is beneficial to increasing the radiation angle of high-frequency sound waves.

[0077] Participate in Figure 8 , Figure 9 and Figure 11 , the diaphragm 212 of the speaker 21 may be arranged corresponding to the sound inlet 222. The sound waves generated by the speaker 21 can be transmitted into the sound guiding channel 221 through the sound inlet 222 and transmitted out of the sound guiding channel 221 through the sound outlet 223. The other part of the inner wall 2211 of the sound guiding channel 221 and the surface of the boss 224 (such as the top surface 2242) can both reflect sound waves. The other part of the inner wall of the sound guiding channel 221 can be understood as the inner wall of the sound guiding channel 221 where no boss is provided. The length of the transmission path of the sound waves reflected by the other part of the inner wall of the sound guiding channel 221 is greater than the length of the transmission path of the sound waves reflected by the surface of the boss 224.

[0078] In the embodiment of the present application, by providing a boss 224 on the inner wall of the sound guiding channel 221 and the boss 224 extending in the direction from the sound inlet 222 to the sound outlet 223, it is beneficial to expand the radiation angle of high-frequency sound waves, weaken the directivity of high-frequency sound waves, so that the radiation angle of high-frequency sound waves is close to that of low-frequency sound waves. Regardless of the frequency of the sound waves, when the user moves within the area of the sound wave radiation angle, an energy-balanced sound listening effect can be obtained, improving the user experience. It can be understood that there is a certain distance between the top surface 2242 and the bottom surface 2241 of the boss 224, that is, there is a certain distance between the top surface 2242 of the boss 224 and the inner wall 2211 of the sound guiding channel 221. For sound waves of the same frequency, the length of the transmission path of the sound waves reflected from the top surface 2242 of the boss 224 is different from the length of the transmission path of the sound waves reflected from the inner wall 2211 of the sound guiding channel 221 (here, the inner wall 2211 refers to the area on the inner wall 2211 that is not covered by the bottom surface 2241) (exemplarily, the length of the transmission path of the sound waves reflected from the inner wall 2211 of the sound guiding channel 221 is greater than the length of the transmission path of the sound waves reflected from the top surface 2242 of the boss 224, and the difference in the transmission distance is twice the height of the boss 224). Due to the different transmission distances, there is a phase difference. The reflected waves with different phases will interfere with each other. When the frequency is relatively low, the difference in the transmission distance between different reflected waves is very small compared with the wavelength of the sound waves, resulting in a relatively small phase difference and a relatively low degree of mutual interference. As the frequency increases, when the difference in the transmission distance between different reflected waves cannot be ignored compared with the wavelength of the sound waves (the transmission distance difference is close to 1 / 4 of the sound wave wavelength), the phase difference begins to become more obvious, the degree of mutual interference increases, and the original orderly reflected waves become disorderly reflected waves, causing the reflected waves to scatter. When the frequency continues to increase and the size of the boss 224 (such as the height and width of the boss 224, and the height and width of the boss 224 are referred to in the subsequent description) can be comparable to the wavelength of the sound waves, the reflected waves form diffuse reflection. Both scattering and diffuse reflection will expand the radiation angle of the sound waves. That is, for high-frequency sound waves, by providing a boss 224 on the inner wall 2211 of the waveguide 22 along the transmission direction of the sound waves, the radiation angle of the sound waves can be expanded, and the directivity of the high-frequency sound waves can be weakened, so that the radiation angle of the low-frequency sound waves is close to that of the high-frequency sound waves.

[0079] As Figure 8 and Figure 12 shown, Figure 12 is Figure 7A cross-sectional view of the shown speaker assembly 20 along B-B. The dimension of the boss 224 in the first direction A1 (the dimension of the boss 224 in the first direction A1 can be L1 and / or L2) is greater than or equal to 2 mm, and the first direction A1 is the direction perpendicular to the inner wall 2211 of the sound guiding channel 221. The dimension of the boss 224 in the first direction A1 can be understood as the height of the boss 224. Exemplarily, the dimension of the boss 224 in the first direction A1 can be 5 mm, 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm or 100 mm, etc. By setting the dimension of the boss 224 in the first direction A1 to be greater than or equal to 2 mm in the embodiments of the present application, it is beneficial to expand the radiation angle of high-frequency sound waves and weaken the directivity of high-frequency sound waves. When the dimension of the boss 224 in the first direction A1 is less than 2 mm, the frequency of the sound waves scattered by the boss 224 is not within the audible sound frequency range of the human ear.

[0080] It can be understood that for a boss with a height of L, the frequency that can cause the diffusion of high-frequency sound waves is 340 / (L x 4) to 340 / L.

[0081] In some embodiments, in the direction from the sound inlet 222 to the sound outlet 223, the dimension of the boss 224 in the first direction A1 is different. Exemplarily, the boss 224 can include a first section 2244 and a second section 2245. The first section 2244 is closer to the sound inlet 222 than the second section 2245, and the dimension L1 of the first section 2244 in the first direction A1 is different from the dimension L2 of the second section 2245 in the first direction A1. Exemplarily, the dimension L1 of the first section 2244 in the first direction A1 is greater than the dimension L2 of the second section 2245 in the first direction A1.

[0082] It can be understood that when the inner wall 2211 of the sound guiding channel 221 is a curved surface, the first direction A1 is different at different positions. Figure 12 The marked position of the dimension L1 of the first section 2244 in the first direction A1 in [description] is based on Figure 12 the first direction A1 represented by the solid line in [description], and the marked position of the dimension L2 of the second section 2245 in the first direction A1 is based on Figure 12 the first direction A1 represented by the dashed line in [description]. The first direction A1 can also be other directions perpendicular to the inner wall 2211 of the sound guiding channel 221. In other embodiments, when the inner wall 2211 of the sound guiding channel 221 is a plane, the first direction A1 can be a fixed and unchanging direction.

[0083] In the embodiment of the present application, by setting the dimension L1 of the first section 2244 in the first direction A1 to be different from the dimension L2 of the second section 2245 in the first direction A1, the flexibility of setting the dimension of the boss 224 in the first direction A1 is increased, and the dimension of the boss 224 in the first direction A1 can be flexibly set according to different application requirements, which is beneficial to the use of the waveguide 22 in different application scenarios. In the embodiment of the present application, by setting the dimension L1 of the first section 2244 close to the sound inlet 222 in the first direction A1 to be greater than the dimension L2 of the second section 2245 far from the sound inlet 222 in the first direction A1, it is beneficial to scatter sound waves, and mainly scatter low-frequency sound waves. In addition, by setting the dimension L1 of the first section 2244 close to the sound inlet 222 in the first direction A1 to be greater than the dimension L2 of the second section 2245 far from the sound inlet 222 in the first direction A1, when the speaker assembly 20 is exposed, it can prevent a user's finger or other object from reaching into the sound inlet 222 and damaging the speaker 21.

[0084] It can be understood that the dimension L1 of the first section 2244 in the first direction A1 is greater than or equal to 2 mm, and the dimension L2 of the second section 2245 in the first direction A1 is greater than or equal to 2 mm.

[0085] In other embodiments, the dimension L1 of the first section 2244 in the first direction A1 may also be smaller than the dimension L2 of the second section 2245 in the first direction A1, or the dimension L1 of the first section 2244 in the first direction A1 may also be equal to the dimension L2 of the second section 2245 in the first direction A1, that is, in the direction from the sound inlet 222 to the sound outlet 223, the dimension of the boss 224 in the first direction A1 is the same, and the embodiment of the present application does not limit this.

[0086] It can be understood that the dimension L1 of the first section 2244 in the first direction A1 can be variable, and the dimension L2 of the second section 2245 in the first direction A1 can be variable. Taking Figure 12 as an example, from the sound inlet 222 to the sound outlet 223, the dimension L1 of the first section 2244 in the first direction A1 can gradually decrease, and the dimension L2 of the second section 2245 in the first direction A1 can gradually decrease, that is, the dimension of the boss 224 in the first direction A1 gradually decreases from the sound inlet 222 to the sound outlet 223. In other embodiments, the dimension L1 of the first section 2244 in the first direction A1 may also remain unchanged, and the dimension L2 of the second section 2245 in the first direction A1 may also remain unchanged.

[0087] In some embodiments, one end of the boss 224 is located at the sound inlet 222, and the other end of the boss 224 is located at the sound outlet 223. In the embodiments of the present application, by setting one end of the boss 224 at the sound inlet 222 and the other end of the boss 224 at the sound outlet 223, it is beneficial to make full use of the space of the sound guiding channel 221 and is beneficial to the full scattering of sound waves.

[0088] In other embodiments, both ends of the boss 224 may be located in the region between the sound inlet 222 and the sound outlet 223, and the end of the boss 224 does not extend to the sound inlet 222 or the sound outlet 223. The embodiments of the present application do not limit this.

[0089] Refer to Figure 8 and Figure 12 , in some embodiments, the extension length of the boss 224 in the direction from the sound inlet 222 to the sound outlet 223 is greater than or equal to 20 mm and less than or equal to 500 mm. The extension length of the boss 224 from the sound inlet 222 to the sound outlet 223 refers to the dimension of the extension path between the end of the boss 224 close to the sound inlet 222 and the end of the boss 224 close to the sound outlet 223 in the direction from the sound inlet 222 to the sound outlet 223. Exemplarily, the extension length of the boss 224 may be 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, 120 mm, 140 mm, 160 mm, 180 mm, 200 mm, 230 mm, 260 mm, 300 mm, 350 mm, 400 mm, 450 mm, etc. In the embodiments of the present application, by setting the extension length of the boss 224 to be greater than or equal to 20 mm and less than or equal to 500 mm, it is beneficial to the full scattering of sound waves and is beneficial to expanding the radiation angle of high-frequency sound waves.

[0090] It can be understood that the extension length of the boss 224 in the direction from the sound inlet 222 to the sound outlet 223 is mainly determined by the size of the waveguide 22 (here, the size of the waveguide 22 refers to the extension length of the waveguide 22, and the extension length of the waveguide 22 refers to the dimension of the extension path between the sound inlet 222 and the sound outlet 223 of the waveguide 22). The larger the size of the waveguide 22, the lower the working frequency that can constrain the width of the sound wave. Generally, the wavelength of the starting frequency that can constrain the width of the sound wave is twice the extension length of the waveguide 22.

[0091] It can be understood that the number of the bosses 224 may be one, two, three, four, five, etc. The embodiments of the present application do not limit the number of the bosses 224. When the number of the bosses 224 is two or more, the multiple bosses 224 may be arranged at intervals along the second direction A2, and the second direction A2 forms an angle with the first direction A1 and forms an angle with the direction from the sound inlet 222 to the sound outlet 223.

[0092] In some embodiments, the extension lengths of the plurality of bosses 224 from the sound inlet 222 to the sound outlet 223 may be the same or different. Exemplarily, the extension lengths of the plurality of bosses 224 from the sound inlet 222 to the sound outlet 223 may all be 60 mm. Alternatively, the extension lengths of some of the bosses 224 from the sound inlet 222 to the sound outlet 223 may all be 60 mm, and the extension lengths of some other bosses 224 from the sound inlet 222 to the sound outlet 223 may all be 70 mm. The embodiments of the present application do not limit this.

[0093] In some embodiments, at least two of the bosses 224 have the same dimension in the first direction A1. When a boss 224 is a boss with the same height, that is, in the direction from the sound inlet 222 to the sound outlet 223, when the dimension of a boss 224 in the first direction A1 remains unchanged, the dimensions of at least two of the bosses 224 in the first direction A1 may be the same; when a boss 224 is a boss with different heights, that is, in the direction from the sound inlet 222 to the sound outlet 223, when the dimension of a boss 224 in the first direction A1 changes (for example, the dimension of the first section 2244 of the boss 224 in the first direction A1 is different from the dimension of the second section 2245 of the boss 224 in the first direction A1), the fact that the dimensions of at least two of the bosses 224 in the first direction A1 are the same can be understood as that when at least two of the bosses 224 are in corresponding positions, the dimensions of at least two of the bosses 224 in the first direction A1 are the same. For example, the dimension of the first section 2244 of a boss 224 in the first direction A1 is the same as the dimension of the first section 2244 of another boss 224 in the first direction A1, and the dimension of the second section 2245 of a boss 224 in the first direction A1 is the same as the dimension of the second section 2245 of another boss 224 in the first direction A1.

[0094] By setting the dimensions of at least two of the bosses 224 to be the same in the first direction A1 in the embodiments of the present application, the structure is simple, the arrangement regularity of the plurality of bosses 224 is good, they are relatively neat, and the visual requirements can be met.

[0095] In some embodiments, at least two bosses 224 have different dimensions in the first direction A1. When one boss 224 is a boss with the same height, that is, in the direction from the sound inlet 222 to the sound outlet 223, when the dimension of one boss 224 remains unchanged in the first direction A1, the dimensions of at least two bosses 224 can be different in the first direction A1; when one boss 224 is a boss with different heights, that is, in the direction from the sound inlet 222 to the sound outlet 223, when the dimension of one boss 224 changes in the first direction A1 (for example, the dimension of the first section 2244 of the boss 224 is different from the dimension of the second section 2245 of the boss 224 in the first direction A1), the fact that the dimensions of at least two bosses 224 are different in the first direction A1 can be understood as that at least two bosses 224 have different dimensions in the first direction A1 at least at some corresponding positions. For example, the dimension of the first section 2244 of one boss 224 is different from the dimension of the first section 2244 of another boss 224 in the first direction A1, and / or the dimension of the second section 2245 of one boss 224 is different from the dimension of the second section 2245 of another boss 224 in the first direction A1.

[0096] In the embodiments of the present application, by setting at least two bosses 224 to have different dimensions in the first direction A1, sound waves in a wider frequency range can be scattered, increasing irregularity, randomness, and disorder. The dimensions of multiple bosses 224 in the first direction A1 can be designed according to different application requirements, with high flexibility and a wide application range, and can be applied to a variety of application scenarios.

[0097] As Figure 13 shown, Figure 13 FIG. 10 is a schematic structural diagram of a waveguide 22. The sound guiding channel 221 includes an installation area 2212, and the installation area 2212 includes an intermediate area 2213 and edge areas 2214 located on opposite sides of the intermediate area 2213. Bosses 224 are provided in both the intermediate area 2213 and the edge areas 2214. The number of bosses 224 in the intermediate area 2213 can be one, two, three, four, five, etc., and the number of bosses 224 in the edge areas 2214 can be one, two, three, four, five, etc. The number of bosses 224 in the intermediate area 2213 and the number of bosses 224 in the edge areas 2214 can be the same or different.

[0098] In some embodiments, the dimension of the boss 224 located in the middle region 2213 in the first direction A1 is greater than the dimension of the boss 224 located in the edge region 2214 in the first direction A1. It can be understood that the speaker 21 is correspondingly disposed in the middle region 2213, and the sound waves in the middle region 2213 are relatively concentrated. By setting the dimension of the boss 224 located in the middle region 2213 in the first direction A1 to be greater than the dimension of the boss 224 located in the edge region 2214 in the first direction A1, the embodiments of the present application can effectively scatter the sound waves in the middle region 2213, which is beneficial to increasing the radiation angle of the high-frequency sound waves, making the radiation angle of the high-frequency sound waves close to the radiation angle of the low-frequency sound waves, so as to improve the user's listening experience.

[0099] In other embodiments, the dimension of the boss 224 located in the middle region 2213 in the first direction A1 may also be less than or equal to the dimension of the boss 224 located in the edge region 2214 in the first direction A1, and the embodiments of the present application do not limit this.

[0100] Referring to Figure 8 and Figure 13 , the number of the bosses 224 is at least three, and two adjacent bosses 224 are arranged at intervals and form grooves (the first groove 225 and the second groove 226). In some embodiments, the dimensions of different grooves in the second direction A2 are the same. The dimension of the groove in the second direction A2 can be understood as the width of the groove. By setting the dimensions of different grooves in the second direction A2 to be the same, the embodiments of the present application have a simple structure, good regularity in the arrangement of multiple bosses 224 and different grooves, are relatively neat, and can meet the visual requirements.

[0101] In other embodiments, the dimensions of different grooves in the second direction A2 are different. By setting the dimensions of different grooves in the second direction A2 to be different, the embodiments of the present application increase the non-uniformity, irregularity, randomness and disorder, can improve the scattering frequency range, that is, can scatter the sound waves in a relatively wide frequency range, and can design the dimensions of different grooves in the second direction A2 according to different application requirements, with high flexibility and wide application range, and can be applicable to a variety of application scenarios.

[0102] Exemplarily, the groove located in the middle region 2213 is the first groove 225, and the groove located in the edge region 2214 is the second groove 226. The size of the first groove 225 in the second direction A2 is smaller than the size of the second groove 226 in the second direction A2. It can be understood that the acoustic wave energy generated by the speaker 21 is relatively concentrated at the sound inlet 222. By setting the size of the first groove 225 in the second direction A2 to be smaller than the size of the second groove 226 in the second direction A2, it is beneficial to improve the scattering effect of the waveguide 22 on the acoustic waves. In other embodiments, the size of the first groove 225 in the second direction A2 may also be greater than or equal to the size of the second groove 226 in the second direction A2.

[0103] It can be understood that when the sizes of the bosses 224 in the first direction A1 are different, grooves are formed between adjacent two bosses 224 and the depths of different grooves are different. The depth of the groove refers to the size of the groove in the first direction A1. By setting the depths of different grooves to be different, it is beneficial to scatter acoustic waves in a wider frequency range, increasing irregularity, randomness and disorder.

[0104] Refer to Figure 13 , in some embodiments, the bottom walls of different grooves (such as the first groove 225 and the second groove 226) may be coplanar. Refer to Figure 14 , Figure 14 is a schematic structural diagram of a waveguide 22. In other embodiments, the bottom walls of different grooves (such as the first groove 225 and the second groove 226) may not be coplanar.

[0105] Refer to Figure 8 and Figure 13 , in some embodiments, in the direction from the sound inlet 222 to the sound outlet 223, the spacing between adjacent two bosses 224 is the same. By setting the spacing between adjacent two bosses 224 to be the same in the direction from the sound inlet 222 to the sound outlet 223 in the embodiments of the present application, the structure is simple, the arrangement regularity of multiple bosses 224 is good, relatively neat, and it can meet the visual requirements.

[0106] In other embodiments, in the direction from the sound inlet 222 to the sound outlet 223, the spacing between adjacent two bosses 224 is different. By setting the spacing between adjacent two bosses 224 to be different in the direction from the sound inlet 222 to the sound outlet 223 in the embodiments of the present application, irregularity, randomness and disorder are increased, and the spacing between adjacent two bosses 224 in the direction from the sound inlet 222 to the sound outlet 223 can be designed according to different application requirements, with high flexibility and wide application range, and it can be applied to a variety of application scenarios.

[0107] Exemplarily, the distance between two adjacent bosses 224 at the sound inlet 222 is smaller than that at the sound outlet 223. It can be understood that the acoustic wave energy generated by the speaker 21 is more concentrated at the sound inlet 222. By setting the distance between two adjacent bosses 224 at the sound inlet 222 to be smaller than that at the sound outlet 223 in the embodiment of the present application, it is beneficial to scatter the acoustic waves over a larger range. It can be understood that the groove between two adjacent bosses 224 can guide the acoustic waves entering the sound guide channel from the sound inlet, and the acoustic waves propagate in the groove from the sound inlet to the sound outlet direction.

[0108] It can be understood that when the distance between two adjacent bosses 224 is large, the number of scattered acoustic waves is small; when the distance between two adjacent bosses 224 is small, the resistance to the transmission of acoustic waves is large, which affects the sound transmission. The distance between two adjacent bosses 224 can be adjusted as needed to meet the user's usage requirements.

[0109] Refer to Figure 13 , in some embodiments, the ratio of the sum of the sizes of the bosses 224 in the mounting area 2212 in the second direction A2 to the size of the mounting area 2212 in the second direction A2 is greater than or equal to 20% and less than or equal to 80%. Exemplarily, the ratio of the sum of the sizes of the bosses 224 in the mounting area 2212 in the second direction A2 to the size of the mounting area 2212 in the second direction A2 can be 30%, 50%, 70%, etc. The size of the boss 224 in the second direction A2 can be understood as the width of the boss 224. It can be understood that if the number of bosses 224 in the mounting area 2212 is one, the sum of the sizes of the bosses 224 in the mounting area 2212 in the second direction A2 is the size of this boss 224 in the second direction A2; if the number of bosses 224 in the mounting area 2212 is two or more, the sum of the sizes of the bosses 224 in the mounting area 2212 in the second direction A2 is the sum of the sizes of multiple bosses 224 in the mounting area 2212 in the second direction A2. By setting the ratio of the sum of the sizes of the bosses 224 in the mounting area 2212 in the second direction A2 to the size of the mounting area 2212 in the second direction A2 to be greater than or equal to 20% and less than or equal to 80% in the embodiment of the present application, the sizes of the bosses 224 in the second direction A2 and the distances between multiple bosses 224 are reasonably configured, which is beneficial to ensuring the scattering effect of the waveguide 22 on the acoustic waves.

[0110] In some embodiments, the dimension of a boss 224 in the second direction A2 may be greater than or equal to 2 mm and less than or equal to 10 mm. Exemplarily, the dimension of a boss 224 in the second direction A2 may be 5 mm, 8 mm, etc. In other embodiments, the dimension of a boss 224 in the second direction A2 may also be greater than 10 mm. Exemplarily, the dimension of a boss 224 in the second direction A2 may be 15 mm, 20 mm, 30 mm, etc. The embodiments of the present application do not limit this.

[0111] In some embodiments, in the direction from the sound inlet 222 to the sound outlet 223, the dimensions of a boss 224 in the second direction A2 may be the same, with a simple structure. Multiple bosses 224 are relatively neat and can meet the visual requirements. In other embodiments, in the direction from the sound inlet 222 to the sound outlet 223, the dimensions of a boss 224 in the second direction A2 may also be different and can be set as needed. The embodiments of the present application do not limit this.

[0112] As Figure 15 shown, Figure 15 is a schematic structural diagram of a waveguide 22. The sound guiding channel 221 may include a first region 2215 and a second region 2216, and bosses 224 are provided in both the first region 2215 and the second region 2216. The number of bosses 224 in the first region 2215 may be one, two, three, four, five, etc. The number of bosses 224 in the second region 2216 may be one, two, three, four, five, etc. The number of bosses 224 in the first region 2215 and the number of bosses 224 in the second region 2216 may be the same or different.

[0113] In some embodiments, the bosses 224 in the first region 2215 and the bosses 224 in the second region 2216 are symmetrically arranged. It can be understood that there is a center line between the first region 2215 and the second region 2216. When there is no gap between the first region 2215 and the second region 2216, the dividing line between the first region 2215 and the second region 2216 is the center line. When there is a gap between the first region 2215 and the second region 2216, the center line between the first region 2215 and the second region 2216 is the center line. The bosses 224 in the first region 2215 and the bosses 224 in the second region 2216 are symmetrically arranged with respect to the center line. The symmetrical arrangement of the bosses 224 in the first region 2215 and the bosses 224 in the second region 2216 can be understood as that the number, shape, and size of the bosses 224 in the first region 2215 and the bosses 224 in the second region 2216 are the same, and the bosses 224 at the symmetrical positions of the first region 2215 and the second region 2216 are exactly the same.

[0114] In the embodiment of the present application, by symmetrically arranging the bosses 224 in the first region 2215 and the bosses 224 in the second region 2216, a symmetric sound effect can be obtained in the listening area, improving the user experience and avoiding a large difference and strong disorder in the listening effect when the user moves in the listening area, which affects the user experience.

[0115] In other embodiments, the bosses 224 in the first region 2215 and the bosses 224 in the second region 2216 may also be asymmetrically arranged, and the embodiment of the present application does not limit this and can be arranged according to needs.

[0116] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A waveguide (22), characterized in that, It includes a boss (224) and a sound inlet (222), a sound guiding channel (221) and a sound outlet (223) that are sequentially connected. The sound inlet (222) is used for sound waves to enter the sound guiding channel (221), and the sound outlet (223) is used for the sound waves to exit the sound guiding channel (221). The boss (224) is fixed to the inner wall (2211) of the sound guiding channel (221), and the boss (224) extends along the direction from the sound inlet (222) to the sound outlet (223).

2. The waveguide (22) according to claim 1, characterized in that, The size of the boss (224) in the first direction (A1) is greater than or equal to 2 mm, and the first direction (A1) is the direction perpendicular to the inner wall (2211) of the sound guiding channel (221).

3. The waveguide (22) according to claim 2, characterized in that, The boss (224) includes a first section (2244) and a second section (2245). The first section (2244) is closer to the sound inlet (222) than the second section (2245), and the size of the first section (2244) in the first direction (A1) is different from the size of the second section (2245) in the first direction (A1).

4. The waveguide (22) according to claim 3, characterized in that, The size of the first section (2244) in the first direction (A1) is greater than the size of the second section (2245) in the first direction (A1).

5. The waveguide (22) according to any one of claims 2 to 4, characterized in that, The number of the bosses (224) is at least two. At least two bosses (224) are arranged at intervals along the second direction (A2). The sizes of at least two bosses (224) in the first direction (A1) are the same. The second direction (A2) is set at an angle to the first direction (A1) and is also set at an angle to the direction from the sound inlet (222) to the sound outlet (223).

6. The waveguide (22) according to any one of claims 2-4, characterized in that, The number of the bosses (224) is at least two. At least two bosses (224) are arranged at intervals along the second direction (A2). The sizes of at least two bosses (224) in the first direction (A1) are different. The second direction (A2) is set at an angle to the first direction (A1) and is also set at an angle to the direction from the sound inlet (222) to the sound outlet (223).

7. The waveguide (22) according to claim 6, characterized in that The sound guiding channel (221) includes an intermediate region (2213) and edge regions (2214) located on opposite sides of the intermediate region (2213). Bosses (224) are provided in both the intermediate region (2213) and the edge regions (2214). The size of the boss (224) in the intermediate region (2213) in the first direction (A1) is greater than the size of the boss (224) in the edge region (2214) in the first direction (A1).

8. The waveguide (22) according to any one of claims 2-4, characterized in that The sound guiding channel (221) includes a first region (2215) and a second region (2216). Bosses (224) are provided in both the first region (2215) and the second region (2216). The bosses (224) in the first region (2215) and the bosses (224) in the second region (2216) are symmetrically arranged.

9. The waveguide (22) according to any one of claims 2-4, characterized in that, The boss (224) includes a bottom surface (2241) and a top surface (2242) which are oppositely arranged. The bottom surface (2241) is fixed to the inner wall (2211) of the sound guiding channel (221), and there is a gap between the top surface (2242) and the inner wall (2211) of the sound guiding channel (221).

10. The waveguide (22) according to any one of claims 2-4, characterized in that, One end of the boss (224) is located at the sound inlet (222), and the other end of the boss (224) is located at the sound outlet (223).

11. The waveguide (22) according to any one of claims 2-4, characterized in that, The extension length of the boss (224) in the direction from the sound inlet (222) to the sound outlet (223) is greater than or equal to 20 mm and less than or equal to 500 mm.

12. The waveguide (22) according to any one of claims 2-4, characterized in that, The boss (224) is in a strip shape.

13. The waveguide (22) according to any one of claims 2-4, characterized in that, The number of the bosses (224) is at least two. At least two bosses (224) are arranged at intervals along the second direction (A2). In the direction from the sound inlet (222) to the sound outlet (223), the distance between adjacent two bosses (224) is the same. The second direction (A2) is arranged at an angle with the first direction (A1) and is arranged at an angle with the direction from the sound inlet (222) to the sound outlet (223).

14. The waveguide (22) according to any one of claims 2-4, characterized in that, The number of the bosses (224) is at least two. At least two bosses (224) are arranged at intervals along the second direction (A2). In the direction from the sound inlet (222) to the sound outlet (223), the distance between adjacent two bosses (224) is different. The second direction (A2) is arranged at an angle with the first direction (A1) and is arranged at an angle with the direction from the sound inlet (222) to the sound outlet (223).

15. The waveguide (22) according to claim 14, characterized in that, The distance between adjacent two bosses (224) at the sound inlet (222) is less than the distance between them at the sound outlet (223).

16. The waveguide (22) according to any one of claims 2-4, characterized in that, The number of the bosses (224) is at least three. At least three bosses (224) are arranged at intervals along the second direction (A2). Grooves (225, 226) are formed between adjacent two bosses (224). The sizes of different grooves (225, 226) in the second direction (A2) are the same. The second direction (A2) is arranged at an angle with the first direction (A1) and is arranged at an angle with the direction from the sound inlet (222) to the sound outlet (223).

17. The waveguide (22) according to any one of claims 2 to 4, characterized in that, The number of the bosses (224) is at least three. At least three bosses (224) are arranged at intervals along the second direction (A2). Grooves (225, 226) are formed between adjacent two bosses (224). The sizes of different grooves (225, 226) in the second direction (A2) are different. The second direction (A2) is arranged at an angle with the first direction (A1) and is arranged at an angle with the direction from the sound inlet (222) to the sound outlet (223).

18. The waveguide (22) according to claim 17, characterized in that, The sound guiding channel (221) includes an intermediate region (2213) and edge regions (2214) located on opposite sides of the intermediate region (2213). The groove located in the intermediate region (2213) is the first groove (225), and the groove located in the edge region (2214) is the second groove (226). The size of the first groove (225) in the second direction (A2) is smaller than the size of the second groove (226) in the second direction (A2).

19. The waveguide (22) according to any one of claims 2-4, characterized in that, The sound guiding channel (221) includes a mounting area (2212), the boss (224) is located in the mounting area (2212), and the ratio of the sum of the sizes of the boss (224) in the mounting area (2212) in the second direction (A2) to the size of the mounting area (2212) in the second direction (A2) is greater than or equal to 20% and less than or equal to 80%. The second direction (A2) is arranged at an angle to the first direction (A1) and at an angle to the direction from the sound inlet (222) to the sound outlet (223).

20. The waveguide (22) according to any one of claims 2-4, characterized in that, The cross-sectional area of the sound guiding channel (221) at the sound inlet (222) is smaller than the cross-sectional area of the sound guiding channel (221) at the sound outlet (223).

21. A speaker assembly (20), characterized in that, It includes a speaker (21) and a waveguide (22) according to any one of claims 1-20, and the sound outlet (211) of the speaker (21) is communicated with the sound inlet (222).

22. The speaker assembly (20) according to claim 21, wherein, The speaker assembly (20) includes a connecting member (23), and the connecting member (23) fixedly connects the waveguide (22) and the speaker (21).

23. The speaker assembly (20) according to claim 22, wherein, The connecting member (23) and the waveguide (22) are of an integrally formed structure.

24. An electronic device (100), characterized in that, It includes a housing (10) and a speaker assembly (20) according to any one of claims 21-23, and the speaker assembly (20) is located inside the housing (10).

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